Snap for 11220357 from 937400f355935df19bb381e708ab697a96b58bfb to 24Q1-releaseandroid-14.0.0_r37android-14.0.0_r36android-14.0.0_r35android-14.0.0_r34android-14.0.0_r33android-14.0.0_r32android-14.0.0_r31android-14.0.0_r30android-14.0.0_r29android14-qpr2-s5-releaseandroid14-qpr2-s4-releaseandroid14-qpr2-s3-releaseandroid14-qpr2-s2-releaseandroid14-qpr2-s1-releaseandroid14-qpr2-release

Change-Id: Ib01b7a3f56e8d4856c7693a4a7fc171d5b30c4b4

13 files changed, 1 insertions, 201267 deletions

diff --git a/Android.mk b/Android.mk
deleted file mode 100644
index 69a1aa94..00000000
--- a/Android.mk
+++ /dev/null
@@ -1,2 +0,0 @@
-# Intentionally masking Android.mk files in subdirectories
-# which will be removed after transitioning AEMU to Android.bp.
diff --git a/BUILD.gn b/BUILD.gn
deleted file mode 100644
index e69de29b..00000000
--- a/BUILD.gn
+++ /dev/null
diff --git a/METADATA b/METADATA
deleted file mode 100644
index 2c5bfbc7..00000000
--- a/METADATA
+++ /dev/null
@@ -1,8 +0,0 @@
-# *** THIS PACKAGE HAS SPECIAL LICENSING CONDITIONS.  PLEASE
-#     CONSULT THE OWNERS AND opensource-licensing@google.com BEFORE
-#     DEPENDING ON IT IN YOUR PROJECT. ***
-third_party {
-  license_note: "would be RESTRICTED save for patent license in:\n"
-  "   third-party/angle/extensions/EXT_color_buffer_float.txt"
-  license_type: BY_EXCEPTION_ONLY
-}
diff --git a/build-host.sh b/build-host.sh
deleted file mode 100755
index 73efaebb..00000000
--- a/build-host.sh
+++ /dev/null
@@ -1,8 +0,0 @@
-cc=/usr/bin/clang
-cxx=/usr/bin/clang++
-rm -rf build
-mkdir build
-cd build
-CC=$cc CXX=$cxx cmake . ../
-#cmake . ../ -DCMAKE_TOOLCHAIN_FILE=../toolchain/toolchain-linux-x86_64.cmake
-make -j24
diff --git a/common/end2end/Android.bp b/common/end2end/Android.bp
index 94e3f1a1..57a0754d 100644
--- a/common/end2end/Android.bp
+++ b/common/end2end/Android.bp
@@ -18,7 +18,6 @@ cc_test_host {
         "gfxstream_headers",
     ],
     data_libs: [
-        "libGoldfishProfiler",
         "libGLESv1_CM_emulation_with_host",
         "libGLESv2_emulation_with_host",
         "libEGL_emulation_with_host",
diff --git a/guest/egl/Android.bp b/guest/egl/Android.bp
index 43a4b978..7243facf 100644
--- a/guest/egl/Android.bp
+++ b/guest/egl/Android.bp
@@ -38,7 +38,6 @@ cc_defaults {
         "libcutils",
         "libdrm",
         "liblog",
-        "libGoldfishProfiler",
         "libOpenglCodecCommon",
     ],
     static_libs: [
@@ -104,4 +103,4 @@ cc_library_shared {
             compile_multilib: "64",
         },
     },
-}
\ No newline at end of file
+}
diff --git a/guest/egl/egl.cpp b/guest/egl/egl.cpp
index c1cab7c6..c5b93bdf 100644
--- a/guest/egl/egl.cpp
+++ b/guest/egl/egl.cpp
@@ -40,7 +40,6 @@
 #include "ClientAPIExts.h"
 #include "EGLImage.h"
 #include "ProcessPipe.h"
-#include "profiler.h"
 
 #include <qemu_pipe_bp.h>
 
@@ -1134,7 +1133,6 @@ EGLBoolean eglInitialize(EGLDisplay dpy, EGLint *major, EGLint *minor)
         *major = s_display.getVersionMajor();
     if (minor!=NULL)
         *minor = s_display.getVersionMinor();
-    try_register_goldfish_perfetto();
     return EGL_TRUE;
 }
 
diff --git a/guest/profiler/Android.bp b/guest/profiler/Android.bp
deleted file mode 100644
index 045b80c8..00000000
--- a/guest/profiler/Android.bp
+++ /dev/null
@@ -1,40 +0,0 @@
-/*
- * Copyright (C) 2023 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-package {
-    // See: http://go/android-license-faq
-    default_applicable_licenses: ["hardware_google_gfxstream_license"],
-}
-
-cc_library_shared {
-    name: "libGoldfishProfiler",
-    host_supported: true,
-    vendor: true,
-    shared_libs: [
-        "libbase",
-        "liblog",
-    ],
-    cflags: [
-        "-DLOG_TAG=\"emuglProfiler\"",
-    ],
-    srcs: [
-        "profiler.cpp",
-        "perfetto.cpp",
-    ],
-    export_include_dirs: [
-        "."
-    ],
-}
diff --git a/guest/profiler/perfetto.cpp b/guest/profiler/perfetto.cpp
deleted file mode 100644
index dd401e1b..00000000
--- a/guest/profiler/perfetto.cpp
+++ /dev/null
@@ -1,69071 +0,0 @@
-// Copyright (C) 2019 The Android Open Source Project
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-//      http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
-//
-// This file is automatically generated by gen_amalgamated. Do not edit.
-
-// gen_amalgamated: predefined macros
-#if !defined(PERFETTO_IMPLEMENTATION)
-#define PERFETTO_IMPLEMENTATION
-#endif
-#if !defined(GOOGLE_PROTOBUF_NO_STATIC_INITIALIZER)
-#define GOOGLE_PROTOBUF_NO_STATIC_INITIALIZER
-#endif
-#if !defined(GOOGLE_PROTOBUF_NO_RTTI)
-#define GOOGLE_PROTOBUF_NO_RTTI
-#endif
-#include "perfetto.h"
-// gen_amalgamated begin source: src/base/ctrl_c_handler.cc
-// gen_amalgamated begin header: include/perfetto/ext/base/ctrl_c_handler.h
-/*
- * Copyright (C) 2021 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef INCLUDE_PERFETTO_EXT_BASE_CTRL_C_HANDLER_H_
-#define INCLUDE_PERFETTO_EXT_BASE_CTRL_C_HANDLER_H_
-
-namespace perfetto {
-namespace base {
-
-// On Linux/Android/Mac: installs SIGINT + SIGTERM signal handlers.
-// On Windows: installs a SetConsoleCtrlHandler() handler.
-// The passed handler must be async safe.
-using CtrlCHandlerFunction = void (*)();
-void InstallCtrCHandler(CtrlCHandlerFunction);
-
-}  // namespace base
-}  // namespace perfetto
-
-#endif  // INCLUDE_PERFETTO_EXT_BASE_CTRL_C_HANDLER_H_
-/*
- * Copyright (C) 2021 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-// gen_amalgamated expanded: #include "perfetto/ext/base/ctrl_c_handler.h"
-
-// gen_amalgamated expanded: #include "perfetto/base/build_config.h"
-// gen_amalgamated expanded: #include "perfetto/base/compiler.h"
-// gen_amalgamated expanded: #include "perfetto/base/logging.h"
-
-#if PERFETTO_BUILDFLAG(PERFETTO_OS_WIN)
-#include <Windows.h>
-#include <io.h>
-#else
-#include <signal.h>
-#include <unistd.h>
-#endif
-
-namespace perfetto {
-namespace base {
-
-namespace {
-CtrlCHandlerFunction g_handler = nullptr;
-}
-
-void InstallCtrCHandler(CtrlCHandlerFunction handler) {
-  PERFETTO_CHECK(g_handler == nullptr);
-  g_handler = handler;
-
-#if PERFETTO_BUILDFLAG(PERFETTO_OS_WIN)
-  auto trampoline = [](DWORD type) -> int {
-    if (type == CTRL_C_EVENT) {
-      g_handler();
-      return true;
-    }
-    return false;
-  };
-  ::SetConsoleCtrlHandler(trampoline, true);
-#elif PERFETTO_BUILDFLAG(PERFETTO_OS_LINUX) || \
-    PERFETTO_BUILDFLAG(PERFETTO_OS_ANDROID) || \
-    PERFETTO_BUILDFLAG(PERFETTO_OS_APPLE)
-  // Setup signal handler.
-  struct sigaction sa {};
-
-// Glibc headers for sa_sigaction trigger this.
-#pragma GCC diagnostic push
-#if defined(__clang__)
-#pragma GCC diagnostic ignored "-Wdisabled-macro-expansion"
-#endif
-  sa.sa_handler = [](int) { g_handler(); };
-  sa.sa_flags = static_cast<decltype(sa.sa_flags)>(SA_RESETHAND | SA_RESTART);
-#pragma GCC diagnostic pop
-  sigaction(SIGINT, &sa, nullptr);
-  sigaction(SIGTERM, &sa, nullptr);
-#else
-  // Do nothing on NaCL and Fuchsia.
-  ignore_result(handler);
-#endif
-}
-
-}  // namespace base
-}  // namespace perfetto
-// gen_amalgamated begin source: src/base/event_fd.cc
-// gen_amalgamated begin header: include/perfetto/ext/base/event_fd.h
-// gen_amalgamated begin header: include/perfetto/base/platform_handle.h
-/*
- * Copyright (C) 2020 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef INCLUDE_PERFETTO_BASE_PLATFORM_HANDLE_H_
-#define INCLUDE_PERFETTO_BASE_PLATFORM_HANDLE_H_
-
-// gen_amalgamated expanded: #include "perfetto/base/build_config.h"
-
-namespace perfetto {
-namespace base {
-
-// PlatformHandle should be used only for types that are HANDLE(s) in Windows.
-// It should NOT be used to blanket-replace "int fd" in the codebase.
-// Windows has two types of "handles", which, in UNIX-land, both map to int:
-// 1. File handles returned by the posix-compatibility API like _open().
-//    These are just int(s) and should stay such, because all the posix-like API
-//    in Windows.h take an int, not a HANDLE.
-// 2. Handles returned by old-school WINAPI like CreateFile, CreateEvent etc.
-//    These are proper HANDLE(s). PlatformHandle should be used here.
-#if PERFETTO_BUILDFLAG(PERFETTO_OS_WIN)
-// Windows.h typedefs HANDLE to void*. We use void* here to avoid leaking
-// Windows.h through our headers.
-using PlatformHandle = void*;
-
-// On Windows both nullptr and 0xffff... (INVALID_HANDLE_VALUE) are invalid.
-struct PlatformHandleChecker {
-  static inline bool IsValid(PlatformHandle h) {
-    return h && h != reinterpret_cast<PlatformHandle>(-1);
-  }
-};
-#else
-using PlatformHandle = int;
-struct PlatformHandleChecker {
-  static inline bool IsValid(PlatformHandle h) { return h >= 0; }
-};
-#endif
-
-// The definition of this lives in base/file_utils.cc (to avoid creating an
-// extra build edge for a one liner). This is really an alias for close() (UNIX)
-// CloseHandle() (Windows). THe indirection layer is just to avoid leaking
-// system headers like Windows.h through perfetto headers.
-// Thre return value is always UNIX-style: 0 on success, -1 on failure.
-int ClosePlatformHandle(PlatformHandle);
-
-}  // namespace base
-}  // namespace perfetto
-
-#endif  // INCLUDE_PERFETTO_BASE_PLATFORM_HANDLE_H_
-// gen_amalgamated begin header: include/perfetto/ext/base/scoped_file.h
-/*
- * Copyright (C) 2017 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef INCLUDE_PERFETTO_EXT_BASE_SCOPED_FILE_H_
-#define INCLUDE_PERFETTO_EXT_BASE_SCOPED_FILE_H_
-
-// gen_amalgamated expanded: #include "perfetto/base/build_config.h"
-
-#include <stdio.h>
-
-#if !PERFETTO_BUILDFLAG(PERFETTO_OS_WIN)
-#include <dirent.h>  // For DIR* / opendir().
-#endif
-
-#include <string>
-
-// gen_amalgamated expanded: #include "perfetto/base/export.h"
-// gen_amalgamated expanded: #include "perfetto/base/logging.h"
-// gen_amalgamated expanded: #include "perfetto/base/platform_handle.h"
-
-namespace perfetto {
-namespace base {
-
-namespace internal {
-// Used for the most common cases of ScopedResource where there is only one
-// invalid value.
-template <typename T, T InvalidValue>
-struct DefaultValidityChecker {
-  static bool IsValid(T t) { return t != InvalidValue; }
-};
-}  // namespace internal
-
-// RAII classes for auto-releasing fds and dirs.
-// if T is a pointer type, InvalidValue must be nullptr. Doing otherwise
-// causes weird unexpected behaviors (See https://godbolt.org/z/5nGMW4).
-template <typename T,
-          int (*CloseFunction)(T),
-          T InvalidValue,
-          bool CheckClose = true,
-          class Checker = internal::DefaultValidityChecker<T, InvalidValue>>
-class PERFETTO_EXPORT ScopedResource {
- public:
-  using ValidityChecker = Checker;
-  static constexpr T kInvalid = InvalidValue;
-
-  explicit ScopedResource(T t = InvalidValue) : t_(t) {}
-  ScopedResource(ScopedResource&& other) noexcept {
-    t_ = other.t_;
-    other.t_ = InvalidValue;
-  }
-  ScopedResource& operator=(ScopedResource&& other) {
-    reset(other.t_);
-    other.t_ = InvalidValue;
-    return *this;
-  }
-  T get() const { return t_; }
-  T operator*() const { return t_; }
-  explicit operator bool() const { return Checker::IsValid(t_); }
-  void reset(T r = InvalidValue) {
-    if (Checker::IsValid(t_)) {
-      int res = CloseFunction(t_);
-      if (CheckClose)
-        PERFETTO_CHECK(res == 0);
-    }
-    t_ = r;
-  }
-  T release() {
-    T t = t_;
-    t_ = InvalidValue;
-    return t;
-  }
-  ~ScopedResource() { reset(InvalidValue); }
-
- private:
-  ScopedResource(const ScopedResource&) = delete;
-  ScopedResource& operator=(const ScopedResource&) = delete;
-  T t_;
-};
-
-// Declared in file_utils.h. Forward declared to avoid #include cycles.
-int PERFETTO_EXPORT CloseFile(int fd);
-
-// Use this for file resources obtained via open() and similar APIs.
-using ScopedFile = ScopedResource<int, CloseFile, -1>;
-using ScopedFstream = ScopedResource<FILE*, fclose, nullptr>;
-
-// Use this for resources that are HANDLE on Windows. See comments in
-// platform_handle.h
-#if PERFETTO_BUILDFLAG(PERFETTO_OS_WIN)
-using ScopedPlatformHandle = ScopedResource<PlatformHandle,
-                                            ClosePlatformHandle,
-                                            /*InvalidValue=*/nullptr,
-                                            /*CheckClose=*/true,
-                                            PlatformHandleChecker>;
-#else
-// On non-windows systems we alias ScopedPlatformHandle to ScopedFile because
-// they are really the same. This is to allow assignments between the two in
-// Linux-specific code paths that predate ScopedPlatformHandle.
-static_assert(std::is_same<int, PlatformHandle>::value, "");
-using ScopedPlatformHandle = ScopedFile;
-
-// DIR* does not exist on Windows.
-using ScopedDir = ScopedResource<DIR*, closedir, nullptr>;
-#endif
-
-}  // namespace base
-}  // namespace perfetto
-
-#endif  // INCLUDE_PERFETTO_EXT_BASE_SCOPED_FILE_H_
-/*
- * Copyright (C) 2018 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef INCLUDE_PERFETTO_EXT_BASE_EVENT_FD_H_
-#define INCLUDE_PERFETTO_EXT_BASE_EVENT_FD_H_
-
-// gen_amalgamated expanded: #include "perfetto/base/build_config.h"
-// gen_amalgamated expanded: #include "perfetto/base/platform_handle.h"
-// gen_amalgamated expanded: #include "perfetto/ext/base/scoped_file.h"
-
-namespace perfetto {
-namespace base {
-
-// A waitable event that can be used with poll/select.
-// This is really a wrapper around eventfd_create with a pipe-based fallback
-// for other platforms where eventfd is not supported.
-class EventFd {
- public:
-  EventFd();
-  ~EventFd();
-  EventFd(EventFd&&) noexcept = default;
-  EventFd& operator=(EventFd&&) = default;
-
-  // The non-blocking file descriptor that can be polled to wait for the event.
-  PlatformHandle fd() const { return event_handle_.get(); }
-
-  // Can be called from any thread.
-  void Notify();
-
-  // Can be called from any thread. If more Notify() are queued a Clear() call
-  // can clear all of them (up to 16 per call).
-  void Clear();
-
- private:
-  // The eventfd, when eventfd is supported, otherwise this is the read end of
-  // the pipe for fallback mode.
-  ScopedPlatformHandle event_handle_;
-
-#if !PERFETTO_BUILDFLAG(PERFETTO_OS_LINUX) &&   \
-    !PERFETTO_BUILDFLAG(PERFETTO_OS_ANDROID) && \
-    !PERFETTO_BUILDFLAG(PERFETTO_OS_WIN)
-  // On Mac and other non-Linux UNIX platforms a pipe-based fallback is used.
-  // The write end of the wakeup pipe.
-  ScopedFile write_fd_;
-#endif
-};
-
-}  // namespace base
-}  // namespace perfetto
-
-#endif  // INCLUDE_PERFETTO_EXT_BASE_EVENT_FD_H_
-// gen_amalgamated begin header: include/perfetto/ext/base/pipe.h
-/*
- * Copyright (C) 2018 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef INCLUDE_PERFETTO_EXT_BASE_PIPE_H_
-#define INCLUDE_PERFETTO_EXT_BASE_PIPE_H_
-
-// gen_amalgamated expanded: #include "perfetto/base/platform_handle.h"
-// gen_amalgamated expanded: #include "perfetto/ext/base/scoped_file.h"
-
-namespace perfetto {
-namespace base {
-
-class Pipe {
- public:
-  enum Flags {
-    kBothBlock = 0,
-#if !PERFETTO_BUILDFLAG(PERFETTO_OS_WIN)
-    kBothNonBlock,
-    kRdNonBlock,
-    kWrNonBlock,
-#endif
-  };
-
-  static Pipe Create(Flags = kBothBlock);
-
-  Pipe();
-  Pipe(Pipe&&) noexcept;
-  Pipe& operator=(Pipe&&);
-
-  ScopedPlatformHandle rd;
-  ScopedPlatformHandle wr;
-};
-
-}  // namespace base
-}  // namespace perfetto
-
-#endif  // INCLUDE_PERFETTO_EXT_BASE_PIPE_H_
-// gen_amalgamated begin header: include/perfetto/ext/base/utils.h
-/*
- * Copyright (C) 2017 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef INCLUDE_PERFETTO_EXT_BASE_UTILS_H_
-#define INCLUDE_PERFETTO_EXT_BASE_UTILS_H_
-
-// gen_amalgamated expanded: #include "perfetto/base/build_config.h"
-// gen_amalgamated expanded: #include "perfetto/base/compiler.h"
-
-#include <errno.h>
-#include <stddef.h>
-#include <stdint.h>
-#include <stdlib.h>
-#include <sys/types.h>
-
-#include <atomic>
-#include <string>
-
-#if PERFETTO_BUILDFLAG(PERFETTO_OS_WIN)
-// Even if Windows has errno.h, the all syscall-restart behavior does not apply.
-// Trying to handle EINTR can cause more harm than good if errno is left stale.
-// Chromium does the same.
-#define PERFETTO_EINTR(x) (x)
-#else
-#define PERFETTO_EINTR(x)                                   \
-  ([&] {                                                    \
-    decltype(x) eintr_wrapper_result;                       \
-    do {                                                    \
-      eintr_wrapper_result = (x);                           \
-    } while (eintr_wrapper_result == -1 && errno == EINTR); \
-    return eintr_wrapper_result;                            \
-  }())
-#endif
-
-#if PERFETTO_BUILDFLAG(PERFETTO_OS_WIN)
-using uid_t = unsigned int;
-#if !PERFETTO_BUILDFLAG(PERFETTO_COMPILER_GCC)
-using pid_t = unsigned int;
-#endif
-#if defined(_WIN64)
-using ssize_t = int64_t;
-#else
-using ssize_t = long;
-#endif
-#endif
-
-namespace perfetto {
-namespace base {
-
-constexpr uid_t kInvalidUid = static_cast<uid_t>(-1);
-constexpr pid_t kInvalidPid = static_cast<pid_t>(-1);
-
-// Do not add new usages of kPageSize, consider using GetSysPageSize() below.
-// TODO(primiano): over time the semantic of kPageSize became too ambiguous.
-// Strictly speaking, this constant is incorrect on some new devices where the
-// page size can be 16K (e.g., crbug.com/1116576). Unfortunately too much code
-// ended up depending on kPageSize for purposes that are not strictly related
-// with the kernel's mm subsystem.
-constexpr size_t kPageSize = 4096;
-
-// Returns the system's page size. Use this when dealing with mmap, madvise and
-// similar mm-related syscalls.
-uint32_t GetSysPageSize();
-
-template <typename T>
-constexpr size_t ArraySize(const T& array) {
-  return sizeof(array) / sizeof(array[0]);
-}
-
-// Function object which invokes 'free' on its parameter, which must be
-// a pointer. Can be used to store malloc-allocated pointers in std::unique_ptr:
-//
-// std::unique_ptr<int, base::FreeDeleter> foo_ptr(
-//     static_cast<int*>(malloc(sizeof(int))));
-struct FreeDeleter {
-  inline void operator()(void* ptr) const { free(ptr); }
-};
-
-template <typename T>
-constexpr T AssumeLittleEndian(T value) {
-#if !PERFETTO_IS_LITTLE_ENDIAN()
-  static_assert(false, "Unimplemented on big-endian archs");
-#endif
-  return value;
-}
-
-// Round up |size| to a multiple of |alignment| (must be a power of two).
-template <size_t alignment>
-constexpr size_t AlignUp(size_t size) {
-  static_assert((alignment & (alignment - 1)) == 0, "alignment must be a pow2");
-  return (size + alignment - 1) & ~(alignment - 1);
-}
-
-inline bool IsAgain(int err) {
-  return err == EAGAIN || err == EWOULDBLOCK;
-}
-
-// setenv(2)-equivalent. Deals with Windows vs Posix discrepancies.
-void SetEnv(const std::string& key, const std::string& value);
-
-// Calls mallopt(M_PURGE, 0) on Android. Does nothing on other platforms.
-// This forces the allocator to release freed memory. This is used to work
-// around various Scudo inefficiencies. See b/170217718.
-void MaybeReleaseAllocatorMemToOS();
-
-// geteuid() on POSIX OSes, returns 0 on Windows (See comment in utils.cc).
-uid_t GetCurrentUserId();
-
-// Forks the process.
-// Parent: prints the PID of the child and exit(0).
-// Child: redirects stdio onto /dev/null and chdirs into .
-void Daemonize();
-
-}  // namespace base
-}  // namespace perfetto
-
-#endif  // INCLUDE_PERFETTO_EXT_BASE_UTILS_H_
-/*
- * Copyright (C) 2018 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-// gen_amalgamated expanded: #include "perfetto/base/build_config.h"
-
-#include <errno.h>
-#include <stdint.h>
-
-#if PERFETTO_BUILDFLAG(PERFETTO_OS_WIN)
-#include <Windows.h>
-#include <synchapi.h>
-#elif PERFETTO_BUILDFLAG(PERFETTO_OS_LINUX) || \
-    PERFETTO_BUILDFLAG(PERFETTO_OS_ANDROID)
-#include <sys/eventfd.h>
-#include <unistd.h>
-#else  // Mac, Fuchsia and other non-Linux UNIXes
-#include <unistd.h>
-#endif
-
-// gen_amalgamated expanded: #include "perfetto/base/logging.h"
-// gen_amalgamated expanded: #include "perfetto/ext/base/event_fd.h"
-// gen_amalgamated expanded: #include "perfetto/ext/base/pipe.h"
-// gen_amalgamated expanded: #include "perfetto/ext/base/utils.h"
-
-namespace perfetto {
-namespace base {
-
-EventFd::~EventFd() = default;
-
-#if PERFETTO_BUILDFLAG(PERFETTO_OS_WIN)
-EventFd::EventFd() {
-  event_handle_.reset(
-      CreateEventA(/*lpEventAttributes=*/nullptr, /*bManualReset=*/true,
-                   /*bInitialState=*/false, /*bInitialState=*/nullptr));
-}
-
-void EventFd::Notify() {
-  if (!SetEvent(event_handle_.get()))  // 0: fail, !0: success, unlike UNIX.
-    PERFETTO_DFATAL("EventFd::Notify()");
-}
-
-void EventFd::Clear() {
-  if (!ResetEvent(event_handle_.get()))  // 0: fail, !0: success, unlike UNIX.
-    PERFETTO_DFATAL("EventFd::Clear()");
-}
-
-#elif PERFETTO_BUILDFLAG(PERFETTO_OS_LINUX) || \
-    PERFETTO_BUILDFLAG(PERFETTO_OS_ANDROID)
-
-EventFd::EventFd() {
-  event_handle_.reset(eventfd(/*initval=*/0, EFD_CLOEXEC | EFD_NONBLOCK));
-  PERFETTO_CHECK(event_handle_);
-}
-
-void EventFd::Notify() {
-  const uint64_t value = 1;
-  ssize_t ret = write(event_handle_.get(), &value, sizeof(value));
-  if (ret <= 0 && errno != EAGAIN)
-    PERFETTO_DFATAL("EventFd::Notify()");
-}
-
-void EventFd::Clear() {
-  uint64_t value;
-  ssize_t ret = read(event_handle_.get(), &value, sizeof(value));
-  if (ret <= 0 && errno != EAGAIN)
-    PERFETTO_DFATAL("EventFd::Clear()");
-}
-
-#else
-
-EventFd::EventFd() {
-  // Make the pipe non-blocking so that we never block the waking thread (either
-  // the main thread or another one) when scheduling a wake-up.
-  Pipe pipe = Pipe::Create(Pipe::kBothNonBlock);
-  event_handle_ = ScopedPlatformHandle(std::move(pipe.rd).release());
-  write_fd_ = std::move(pipe.wr);
-}
-
-void EventFd::Notify() {
-  const uint64_t value = 1;
-  ssize_t ret = write(write_fd_.get(), &value, sizeof(uint8_t));
-  if (ret <= 0 && errno != EAGAIN)
-    PERFETTO_DFATAL("EventFd::Notify()");
-}
-
-void EventFd::Clear() {
-  // Drain the byte(s) written to the wake-up pipe. We can potentially read
-  // more than one byte if several wake-ups have been scheduled.
-  char buffer[16];
-  ssize_t ret = read(event_handle_.get(), &buffer[0], sizeof(buffer));
-  if (ret <= 0 && errno != EAGAIN)
-    PERFETTO_DFATAL("EventFd::Clear()");
-}
-#endif
-
-}  // namespace base
-}  // namespace perfetto
-// gen_amalgamated begin source: src/base/file_utils.cc
-// gen_amalgamated begin header: include/perfetto/ext/base/file_utils.h
-/*
- * Copyright (C) 2018 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef INCLUDE_PERFETTO_EXT_BASE_FILE_UTILS_H_
-#define INCLUDE_PERFETTO_EXT_BASE_FILE_UTILS_H_
-
-#include <fcntl.h>  // For mode_t & O_RDONLY/RDWR. Exists also on Windows.
-#include <stddef.h>
-
-#include <string>
-
-// gen_amalgamated expanded: #include "perfetto/base/build_config.h"
-// gen_amalgamated expanded: #include "perfetto/base/export.h"
-// gen_amalgamated expanded: #include "perfetto/ext/base/scoped_file.h"
-// gen_amalgamated expanded: #include "perfetto/ext/base/utils.h"
-
-namespace perfetto {
-namespace base {
-
-#if PERFETTO_BUILDFLAG(PERFETTO_OS_WIN)
-using FileOpenMode = int;
-#else
-using FileOpenMode = mode_t;
-#endif
-
-constexpr FileOpenMode kFileModeInvalid = static_cast<FileOpenMode>(-1);
-
-bool ReadPlatformHandle(PlatformHandle, std::string* out);
-bool ReadFileDescriptor(int fd, std::string* out);
-bool ReadFileStream(FILE* f, std::string* out);
-bool ReadFile(const std::string& path, std::string* out);
-
-// A wrapper around read(2). It deals with Linux vs Windows includes. It also
-// deals with handling EINTR. Has the same semantics of UNIX's read(2).
-ssize_t Read(int fd, void* dst, size_t dst_size);
-
-// Call write until all data is written or an error is detected.
-//
-// man 2 write:
-//   If a write() is interrupted by a signal handler before any bytes are
-//   written, then the call fails with the error EINTR; if it is
-//   interrupted after at least one byte has been written, the call
-//   succeeds, and returns the number of bytes written.
-ssize_t WriteAll(int fd, const void* buf, size_t count);
-
-ssize_t WriteAllHandle(PlatformHandle, const void* buf, size_t count);
-
-ScopedFile OpenFile(const std::string& path,
-                    int flags,
-                    FileOpenMode = kFileModeInvalid);
-
-// This is an alias for close(). It's to avoid leaking Windows.h in headers.
-// Exported because ScopedFile is used in the /include/ext API by Chromium
-// component builds.
-int PERFETTO_EXPORT CloseFile(int fd);
-
-bool FlushFile(int fd);
-
-// Returns true if mkdir succeeds, false if it fails (see errno in that case).
-bool Mkdir(const std::string& path);
-
-// Calls rmdir() on UNIX, _rmdir() on Windows.
-bool Rmdir(const std::string& path);
-
-// Wrapper around access(path, F_OK).
-bool FileExists(const std::string& path);
-
-}  // namespace base
-}  // namespace perfetto
-
-#endif  // INCLUDE_PERFETTO_EXT_BASE_FILE_UTILS_H_
-/*
- * Copyright (C) 2018 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-// gen_amalgamated expanded: #include "perfetto/ext/base/file_utils.h"
-
-#include <sys/stat.h>
-#include <sys/types.h>
-
-#include <algorithm>
-
-// gen_amalgamated expanded: #include "perfetto/base/build_config.h"
-// gen_amalgamated expanded: #include "perfetto/base/logging.h"
-// gen_amalgamated expanded: #include "perfetto/base/platform_handle.h"
-// gen_amalgamated expanded: #include "perfetto/ext/base/scoped_file.h"
-// gen_amalgamated expanded: #include "perfetto/ext/base/utils.h"
-
-#if PERFETTO_BUILDFLAG(PERFETTO_OS_WIN)
-#include <Windows.h>
-#include <direct.h>
-#include <io.h>
-#else
-#include <dirent.h>
-#include <unistd.h>
-#endif
-
-namespace perfetto {
-namespace base {
-namespace {
-constexpr size_t kBufSize = 2048;
-}
-
-ssize_t Read(int fd, void* dst, size_t dst_size) {
-#if PERFETTO_BUILDFLAG(PERFETTO_OS_WIN)
-  return _read(fd, dst, static_cast<unsigned>(dst_size));
-#else
-  return PERFETTO_EINTR(read(fd, dst, dst_size));
-#endif
-}
-
-bool ReadFileDescriptor(int fd, std::string* out) {
-  // Do not override existing data in string.
-  size_t i = out->size();
-
-  struct stat buf {};
-  if (fstat(fd, &buf) != -1) {
-    if (buf.st_size > 0)
-      out->resize(i + static_cast<size_t>(buf.st_size));
-  }
-
-  ssize_t bytes_read;
-  for (;;) {
-    if (out->size() < i + kBufSize)
-      out->resize(out->size() + kBufSize);
-
-    bytes_read = Read(fd, &((*out)[i]), kBufSize);
-    if (bytes_read > 0) {
-      i += static_cast<size_t>(bytes_read);
-    } else {
-      out->resize(i);
-      return bytes_read == 0;
-    }
-  }
-}
-
-bool ReadPlatformHandle(PlatformHandle h, std::string* out) {
-#if PERFETTO_BUILDFLAG(PERFETTO_OS_WIN)
-  // Do not override existing data in string.
-  size_t i = out->size();
-
-  for (;;) {
-    if (out->size() < i + kBufSize)
-      out->resize(out->size() + kBufSize);
-    DWORD bytes_read = 0;
-    auto res = ::ReadFile(h, &((*out)[i]), kBufSize, &bytes_read, nullptr);
-    if (res && bytes_read > 0) {
-      i += static_cast<size_t>(bytes_read);
-    } else {
-      out->resize(i);
-      const bool is_eof = res && bytes_read == 0;
-      auto err = res ? 0 : GetLastError();
-      // The "Broken pipe" error on Windows is slighly different than Unix:
-      // On Unix: a "broken pipe" error can happen only on the writer side. On
-      // the reader there is no broken pipe, just a EOF.
-      // On windows: the reader also sees a broken pipe error.
-      // Here we normalize on the Unix behavior, treating broken pipe as EOF.
-      return is_eof || err == ERROR_BROKEN_PIPE;
-    }
-  }
-#else
-  return ReadFileDescriptor(h, out);
-#endif
-}
-
-bool ReadFileStream(FILE* f, std::string* out) {
-  return ReadFileDescriptor(fileno(f), out);
-}
-
-bool ReadFile(const std::string& path, std::string* out) {
-  base::ScopedFile fd = base::OpenFile(path, O_RDONLY);
-  if (!fd)
-    return false;
-
-  return ReadFileDescriptor(*fd, out);
-}
-
-ssize_t WriteAll(int fd, const void* buf, size_t count) {
-  size_t written = 0;
-  while (written < count) {
-    // write() on windows takes an unsigned int size.
-    uint32_t bytes_left = static_cast<uint32_t>(
-        std::min(count - written, static_cast<size_t>(UINT32_MAX)));
-    ssize_t wr = PERFETTO_EINTR(
-        write(fd, static_cast<const char*>(buf) + written, bytes_left));
-    if (wr == 0)
-      break;
-    if (wr < 0)
-      return wr;
-    written += static_cast<size_t>(wr);
-  }
-  return static_cast<ssize_t>(written);
-}
-
-ssize_t WriteAllHandle(PlatformHandle h, const void* buf, size_t count) {
-#if PERFETTO_BUILDFLAG(PERFETTO_OS_WIN)
-  DWORD wsize = 0;
-  if (::WriteFile(h, buf, static_cast<DWORD>(count), &wsize, nullptr)) {
-    return wsize;
-  } else {
-    return -1;
-  }
-#else
-  return WriteAll(h, buf, count);
-#endif
-}
-
-bool FlushFile(int fd) {
-  PERFETTO_DCHECK(fd != 0);
-#if PERFETTO_BUILDFLAG(PERFETTO_OS_LINUX) || \
-    PERFETTO_BUILDFLAG(PERFETTO_OS_ANDROID)
-  return !PERFETTO_EINTR(fdatasync(fd));
-#elif PERFETTO_BUILDFLAG(PERFETTO_OS_WIN)
-  return !PERFETTO_EINTR(_commit(fd));
-#else
-  return !PERFETTO_EINTR(fsync(fd));
-#endif
-}
-
-bool Mkdir(const std::string& path) {
-#if PERFETTO_BUILDFLAG(PERFETTO_OS_WIN)
-  return _mkdir(path.c_str()) == 0;
-#else
-  return mkdir(path.c_str(), 0755) == 0;
-#endif
-}
-
-bool Rmdir(const std::string& path) {
-#if PERFETTO_BUILDFLAG(PERFETTO_OS_WIN)
-  return _rmdir(path.c_str()) == 0;
-#else
-  return rmdir(path.c_str()) == 0;
-#endif
-}
-
-int CloseFile(int fd) {
-  return close(fd);
-}
-
-ScopedFile OpenFile(const std::string& path, int flags, FileOpenMode mode) {
-  PERFETTO_DCHECK((flags & O_CREAT) == 0 || mode != kFileModeInvalid);
-#if PERFETTO_BUILDFLAG(PERFETTO_OS_WIN)
-  // Always use O_BINARY on Windows, to avoid silly EOL translations.
-  ScopedFile fd(_open(path.c_str(), flags | O_BINARY, mode));
-#else
-  // Always open a ScopedFile with O_CLOEXEC so we can safely fork and exec.
-  ScopedFile fd(open(path.c_str(), flags | O_CLOEXEC, mode));
-#endif
-  return fd;
-}
-
-bool FileExists(const std::string& path) {
-#if PERFETTO_BUILDFLAG(PERFETTO_OS_WIN)
-  return _access(path.c_str(), 0) == 0;
-#else
-  return access(path.c_str(), F_OK) == 0;
-#endif
-}
-
-// Declared in base/platform_handle.h.
-int ClosePlatformHandle(PlatformHandle handle) {
-#if PERFETTO_BUILDFLAG(PERFETTO_OS_WIN)
-  // Make the return value UNIX-style.
-  return CloseHandle(handle) ? 0 : -1;
-#else
-  return close(handle);
-#endif
-}
-
-}  // namespace base
-}  // namespace perfetto
-// gen_amalgamated begin source: src/base/getopt_compat.cc
-// gen_amalgamated begin header: include/perfetto/ext/base/getopt_compat.h
-/*
- * Copyright (C) 2021 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef INCLUDE_PERFETTO_EXT_BASE_GETOPT_COMPAT_H_
-#define INCLUDE_PERFETTO_EXT_BASE_GETOPT_COMPAT_H_
-
-#include <cstddef>  // For std::nullptr_t
-
-// No translation units other than base/getopt.h and getopt_compat_unittest.cc
-// should directly include this file. Use base/getopt.h instead.
-
-namespace perfetto {
-namespace base {
-namespace getopt_compat {
-
-// A tiny getopt() replacement for Windows, which doesn't have <getopt.h>.
-// This implementation is based on the subset of features that we use in the
-// Perfetto codebase. It doesn't even try to deal with the full surface of GNU's
-// getopt().
-// Limitations:
-// - getopt_long_only() is not supported.
-// - optional_argument is not supported. That is extremely subtle and caused us
-//   problems in the past with GNU's getopt.
-// - It does not reorder non-option arguments. It behaves like MacOS getopt, or
-//   GNU's when POSIXLY_CORRECT=1.
-// - Doesn't expose optopt or opterr.
-// - option.flag and longindex are not supported and must be nullptr.
-
-enum {
-  no_argument = 0,
-  required_argument = 1,
-};
-
-struct option {
-  const char* name;
-  int has_arg;
-  std::nullptr_t flag;  // Only nullptr is supported.
-  int val;
-};
-
-extern char* optarg;
-extern int optind;
-
-int getopt_long(int argc,
-                char** argv,
-                const char* shortopts,
-                const option* longopts,
-                std::nullptr_t /*longindex is not supported*/);
-
-int getopt(int argc, char** argv, const char* shortopts);
-
-}  // namespace getopt_compat
-}  // namespace base
-}  // namespace perfetto
-
-#endif  // INCLUDE_PERFETTO_EXT_BASE_GETOPT_COMPAT_H_
-/*
- * Copyright (C) 2021 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-// gen_amalgamated expanded: #include "perfetto/ext/base/getopt_compat.h"
-
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-
-#include <vector>
-
-// gen_amalgamated expanded: #include "perfetto/base/logging.h"
-
-namespace perfetto {
-namespace base {
-namespace getopt_compat {
-
-char* optarg = nullptr;
-int optind = 0;
-
-namespace {
-
-char* nextchar = nullptr;
-
-const option* LookupLongOpt(const std::vector<option>& opts,
-                            const char* name,
-                            size_t len) {
-  for (const option& opt : opts) {
-    if (strncmp(opt.name, name, len) == 0 && strlen(opt.name) == len)
-      return &opt;
-  }
-  return nullptr;
-}
-
-const option* LookupShortOpt(const std::vector<option>& opts, char c) {
-  for (const option& opt : opts) {
-    if (opt.name == nullptr && opt.val == c)
-      return &opt;
-  }
-  return nullptr;
-}
-
-bool ParseOpts(const char* shortopts,
-               const option* longopts,
-               std::vector<option>* res) {
-  // Parse long options first.
-  for (const option* lopt = longopts; lopt && lopt->name; lopt++) {
-    PERFETTO_CHECK(lopt->flag == nullptr);
-    PERFETTO_CHECK(lopt->has_arg == no_argument ||
-                   lopt->has_arg == required_argument);
-    res->emplace_back(*lopt);
-  }
-
-  // Merge short options.
-  for (const char* sopt = shortopts; sopt && *sopt;) {
-    const size_t idx = static_cast<size_t>(sopt - shortopts);
-    char c = *sopt++;
-    bool valid = (c >= 'a' && c <= 'z') || (c >= 'A' && c <= 'Z') ||
-                 (c >= '0' && c <= '9');
-    if (!valid) {
-      fprintf(stderr,
-              "Error parsing shortopts. Unexpected char '%c' at offset %zu\n",
-              c, idx);
-      return false;
-    }
-    res->emplace_back();
-    option& opt = res->back();
-    opt.val = c;
-    opt.has_arg = no_argument;
-    if (*sopt == ':') {
-      opt.has_arg = required_argument;
-      ++sopt;
-    }
-  }
-  return true;
-}
-
-}  // namespace
-
-int getopt_long(int argc,
-                char** argv,
-                const char* shortopts,
-                const option* longopts,
-                std::nullptr_t /*longind*/) {
-  std::vector<option> opts;
-  optarg = nullptr;
-
-  if (optind == 0)
-    optind = 1;
-
-  if (optind >= argc)
-    return -1;
-
-  if (!ParseOpts(shortopts, longopts, &opts))
-    return '?';
-
-  char* arg = argv[optind];
-
-  if (!nextchar) {
-    // If |nextchar| is null we are NOT in the middle of a short option and we
-    // should parse the next argv.
-    if (strncmp(arg, "--", 2) == 0 && strlen(arg) > 2) {
-      // A --long option.
-      arg += 2;
-      char* sep = strchr(arg, '=');
-      optind++;
-
-      size_t len = sep ? static_cast<size_t>(sep - arg) : strlen(arg);
-      const option* opt = LookupLongOpt(opts, arg, len);
-      if (!opt) {
-        fprintf(stderr, "unrecognized option '--%s'\n", arg);
-        return '?';
-      }
-
-      if (opt->has_arg == no_argument) {
-        if (sep) {
-          fprintf(stderr, "option '--%s' doesn't allow an argument\n", arg);
-          return '?';
-        } else {
-          return opt->val;
-        }
-      } else if (opt->has_arg == required_argument) {
-        if (sep) {
-          optarg = sep + 1;
-          return opt->val;
-        } else if (optind >= argc) {
-          fprintf(stderr, "option '--%s' requires an argument\n", arg);
-          return '?';
-        } else {
-          optarg = argv[optind++];
-          return opt->val;
-        }
-      }
-      // has_arg must be either |no_argument| or |required_argument|. We
-      // shoulnd't get here unless the check in ParseOpts() has a bug.
-      PERFETTO_CHECK(false);
-    }  // if (arg ~= "--*").
-
-    if (strlen(arg) > 1 && arg[0] == '-' && arg[1] != '-') {
-      // A sequence of short options. Parsing logic continues below.
-      nextchar = &arg[1];
-    }
-  }  // if(!nextchar)
-
-  if (nextchar) {
-    // At this point either:
-    // 1. This is the first char of a sequence of short options, and we fell
-    //    through here from the lines above.
-    // 2. This is the N (>1) char of a sequence of short options, and we got
-    //    here from a new getopt() call to getopt().
-    const char cur_char = *nextchar;
-    PERFETTO_CHECK(cur_char != '\0');
-
-    // Advance the option char in any case, before we start reasoning on them.
-    // if we got to the end of the "-abc" sequence, increment optind so the next
-    // getopt() call resumes from the next argv argument.
-    if (*(++nextchar) == '\0') {
-      nextchar = nullptr;
-      ++optind;
-    }
-
-    const option* opt = LookupShortOpt(opts, cur_char);
-    if (!opt) {
-      fprintf(stderr, "invalid option -- '%c'\n", cur_char);
-      return '?';
-    }
-    if (opt->has_arg == no_argument) {
-      return cur_char;
-    } else if (opt->has_arg == required_argument) {
-      // This is a subtle getopt behavior. Say you call `tar -fx`, there are
-      // two cases:
-      // 1. If 'f' is no_argument then 'x' (and anything else after) is
-      //    interpreted as an independent argument (like `tar -f -x`).
-      // 2. If 'f' is required_argument, than everything else after the 'f'
-      //    is interpreted as the option argument (like `tar -f x`)
-      if (!nextchar) {
-        // Case 1.
-        if (optind >= argc) {
-          fprintf(stderr, "option requires an argument -- '%c'\n", cur_char);
-          return '?';
-        } else {
-          optarg = argv[optind++];
-          return cur_char;
-        }
-      } else {
-        // Case 2.
-        optarg = nextchar;
-        nextchar = nullptr;
-        optind++;
-        return cur_char;
-      }
-    }
-    PERFETTO_CHECK(false);
-  }  // if (nextchar)
-
-  // If we get here, we found the first non-option argument. Stop here.
-
-  if (strcmp(arg, "--") == 0)
-    optind++;
-
-  return -1;
-}
-
-int getopt(int argc, char** argv, const char* shortopts) {
-  return getopt_long(argc, argv, shortopts, nullptr, nullptr);
-}
-
-}  // namespace getopt_compat
-}  // namespace base
-}  // namespace perfetto
-// gen_amalgamated begin source: src/base/logging.cc
-/*
- * Copyright (C) 2019 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-// gen_amalgamated expanded: #include "perfetto/base/logging.h"
-
-#include <stdarg.h>
-#include <stdio.h>
-
-#if !PERFETTO_BUILDFLAG(PERFETTO_OS_WIN)
-#include <unistd.h>  // For isatty()
-#endif
-
-#include <atomic>
-#include <memory>
-
-// gen_amalgamated expanded: #include "perfetto/base/time.h"
-
-namespace perfetto {
-namespace base {
-
-namespace {
-const char kReset[] = "\x1b[0m";
-const char kDefault[] = "\x1b[39m";
-const char kDim[] = "\x1b[2m";
-const char kRed[] = "\x1b[31m";
-const char kBoldGreen[] = "\x1b[1m\x1b[32m";
-const char kLightGray[] = "\x1b[90m";
-
-std::atomic<LogMessageCallback> g_log_callback{};
-
-}  // namespace
-
-void SetLogMessageCallback(LogMessageCallback callback) {
-  g_log_callback.store(callback, std::memory_order_relaxed);
-}
-
-void LogMessage(LogLev level,
-                const char* fname,
-                int line,
-                const char* fmt,
-                ...) {
-  char stack_buf[512];
-  std::unique_ptr<char[]> large_buf;
-  char* log_msg = &stack_buf[0];
-
-  // By default use a stack allocated buffer because most log messages are quite
-  // short. In rare cases they can be larger (e.g. --help). In those cases we
-  // pay the cost of allocating the buffer on the heap.
-  for (size_t max_len = sizeof(stack_buf);;) {
-    va_list args;
-    va_start(args, fmt);
-    int res = vsnprintf(log_msg, max_len, fmt, args);
-    va_end(args);
-
-    // If for any reason the print fails, overwrite the message but still print
-    // it. The code below will attach the filename and line, which is still
-    // useful.
-    if (res < 0) {
-      strncpy(log_msg, "[printf format error]", max_len);
-      break;
-    }
-
-    // if res == max_len, vsnprintf saturated the input buffer. Retry with a
-    // larger buffer in that case (within reasonable limits).
-    if (res < static_cast<int>(max_len) || max_len >= 128 * 1024)
-      break;
-    max_len *= 4;
-    large_buf.reset(new char[max_len]);
-    log_msg = &large_buf[0];
-  }
-
-  LogMessageCallback cb = g_log_callback.load(std::memory_order_relaxed);
-  if (cb) {
-    cb({level, line, fname, log_msg});
-    return;
-  }
-
-  const char* color = kDefault;
-  switch (level) {
-    case kLogDebug:
-      color = kDim;
-      break;
-    case kLogInfo:
-      color = kDefault;
-      break;
-    case kLogImportant:
-      color = kBoldGreen;
-      break;
-    case kLogError:
-      color = kRed;
-      break;
-  }
-
-#if !PERFETTO_BUILDFLAG(PERFETTO_OS_WIN) && \
-    !PERFETTO_BUILDFLAG(PERFETTO_OS_WASM)
-  static const bool use_colors = isatty(STDERR_FILENO);
-#else
-  static const bool use_colors = false;
-#endif
-
-  // Formats file.cc:line as a space-padded fixed width string. If the file name
-  // |fname| is too long, truncate it on the left-hand side.
-  char line_str[10];
-  size_t line_len =
-      static_cast<size_t>(snprintf(line_str, sizeof(line_str), "%d", line));
-
-  // 24 will be the width of the file.cc:line column in the log event.
-  char file_and_line[24];
-  size_t fname_len = strlen(fname);
-  size_t fname_max = sizeof(file_and_line) - line_len - 2;  // 2 = ':' + '\0'.
-  size_t fname_offset = fname_len <= fname_max ? 0 : fname_len - fname_max;
-  int len = snprintf(file_and_line, sizeof(file_and_line), "%s:%s",
-                     fname + fname_offset, line_str);
-  memset(&file_and_line[len], ' ', sizeof(file_and_line) - size_t(len));
-  file_and_line[sizeof(file_and_line) - 1] = '\0';
-
-#if PERFETTO_BUILDFLAG(PERFETTO_OS_ANDROID)
-  // Logcat has already timestamping, don't re-emit it.
-  __android_log_print(ANDROID_LOG_DEBUG + level, "perfetto", "%s %s",
-                      file_and_line, log_msg);
-#endif
-
-  // When printing on stderr, print also the timestamp. We don't really care
-  // about the actual time. We just need some reference clock that can be used
-  // to correlated events across differrent processses (e.g. traced and
-  // traced_probes). The wall time % 1000 is good enough.
-  char timestamp[32];
-  uint32_t t_ms = static_cast<uint32_t>(GetWallTimeMs().count());
-  uint32_t t_sec = t_ms / 1000;
-  t_ms -= t_sec * 1000;
-  t_sec = t_sec % 1000;
-  snprintf(timestamp, sizeof(timestamp), "[%03u.%03u] ", t_sec, t_ms);
-
-  if (use_colors) {
-    fprintf(stderr, "%s%s%s%s %s%s%s\n", kLightGray, timestamp, file_and_line,
-            kReset, color, log_msg, kReset);
-  } else {
-    fprintf(stderr, "%s%s %s\n", timestamp, file_and_line, log_msg);
-  }
-}
-
-}  // namespace base
-}  // namespace perfetto
-// gen_amalgamated begin source: src/base/metatrace.cc
-// gen_amalgamated begin header: include/perfetto/ext/base/metatrace.h
-// gen_amalgamated begin header: include/perfetto/ext/base/metatrace_events.h
-/*
- * Copyright (C) 2019 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef INCLUDE_PERFETTO_EXT_BASE_METATRACE_EVENTS_H_
-#define INCLUDE_PERFETTO_EXT_BASE_METATRACE_EVENTS_H_
-
-#include <stdint.h>
-
-namespace perfetto {
-namespace metatrace {
-
-enum Tags : uint32_t {
-  TAG_NONE = 0,
-  TAG_ANY = uint32_t(-1),
-  TAG_FTRACE = 1 << 0,
-  TAG_PROC_POLLERS = 1 << 1,
-  TAG_TRACE_WRITER = 1 << 2,
-  TAG_TRACE_SERVICE = 1 << 3,
-  TAG_PRODUCER = 1 << 4,
-};
-
-// The macros below generate matching enums and arrays of string literals.
-// This is to avoid maintaining string maps manually.
-
-// clang-format off
-
-// DO NOT remove or reshuffle items in this list, only append. The ID of these
-// events are an ABI, the trace processor relies on these to open old traces.
-#define PERFETTO_METATRACE_EVENTS(F) \
-  F(EVENT_ZERO_UNUSED), \
-  F(FTRACE_CPU_READER_READ), /*unused*/ \
-  F(FTRACE_DRAIN_CPUS), /*unused*/ \
-  F(FTRACE_UNBLOCK_READERS), /*unused*/ \
-  F(FTRACE_CPU_READ_NONBLOCK), /*unused*/ \
-  F(FTRACE_CPU_READ_BLOCK), /*unused*/ \
-  F(FTRACE_CPU_SPLICE_NONBLOCK), /*unused*/ \
-  F(FTRACE_CPU_SPLICE_BLOCK), /*unused*/ \
-  F(FTRACE_CPU_WAIT_CMD), /*unused*/ \
-  F(FTRACE_CPU_RUN_CYCLE), /*unused*/ \
-  F(FTRACE_CPU_FLUSH), \
-  F(FTRACE_CPU_DRAIN), /*unused*/ \
-  F(READ_SYS_STATS), \
-  F(PS_WRITE_ALL_PROCESSES), \
-  F(PS_ON_PIDS), \
-  F(PS_ON_RENAME_PIDS), \
-  F(PS_WRITE_ALL_PROCESS_STATS), \
-  F(TRACE_WRITER_COMMIT_STARTUP_WRITER_BATCH), \
-  F(FTRACE_READ_TICK), \
-  F(FTRACE_CPU_READ_CYCLE), \
-  F(FTRACE_CPU_READ_BATCH), \
-  F(KALLSYMS_PARSE), \
-  F(PROFILER_READ_TICK), \
-  F(PROFILER_READ_CPU), \
-  F(PROFILER_UNWIND_TICK), \
-  F(PROFILER_UNWIND_SAMPLE), \
-  F(PROFILER_UNWIND_INITIAL_ATTEMPT), \
-  F(PROFILER_UNWIND_ATTEMPT), \
-  F(PROFILER_MAPS_PARSE), \
-  F(PROFILER_MAPS_REPARSE), \
-  F(PROFILER_UNWIND_CACHE_CLEAR)
-
-// Append only, see above.
-//
-// Values that aren't used as counters:
-// * FTRACE_SERVICE_COMMIT_DATA is a bit-packed representation of an event, see
-//   tracing_service_impl.cc for the format.
-// * PROFILER_UNWIND_CURRENT_PID represents the PID that is being unwound.
-//
-#define PERFETTO_METATRACE_COUNTERS(F) \
-  F(COUNTER_ZERO_UNUSED),\
-  F(FTRACE_PAGES_DRAINED), \
-  F(PS_PIDS_SCANNED), \
-  F(TRACE_SERVICE_COMMIT_DATA), \
-  F(PROFILER_UNWIND_QUEUE_SZ), \
-  F(PROFILER_UNWIND_CURRENT_PID)
-
-// clang-format on
-
-#define PERFETTO_METATRACE_IDENTITY(name) name
-#define PERFETTO_METATRACE_TOSTRING(name) #name
-
-enum Events : uint16_t {
-  PERFETTO_METATRACE_EVENTS(PERFETTO_METATRACE_IDENTITY),
-  EVENTS_MAX
-};
-constexpr char const* kEventNames[] = {
-    PERFETTO_METATRACE_EVENTS(PERFETTO_METATRACE_TOSTRING)};
-
-enum Counters : uint16_t {
-  PERFETTO_METATRACE_COUNTERS(PERFETTO_METATRACE_IDENTITY),
-  COUNTERS_MAX
-};
-constexpr char const* kCounterNames[] = {
-    PERFETTO_METATRACE_COUNTERS(PERFETTO_METATRACE_TOSTRING)};
-
-inline void SuppressUnusedVarsInAmalgamatedBuild() {
-  (void)kCounterNames;
-  (void)kEventNames;
-}
-
-}  // namespace metatrace
-}  // namespace perfetto
-
-#endif  // INCLUDE_PERFETTO_EXT_BASE_METATRACE_EVENTS_H_
-/*
- * Copyright (C) 2019 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef INCLUDE_PERFETTO_EXT_BASE_METATRACE_H_
-#define INCLUDE_PERFETTO_EXT_BASE_METATRACE_H_
-
-#include <array>
-#include <atomic>
-#include <functional>
-#include <string>
-
-// gen_amalgamated expanded: #include "perfetto/base/logging.h"
-// gen_amalgamated expanded: #include "perfetto/base/thread_utils.h"
-// gen_amalgamated expanded: #include "perfetto/base/time.h"
-// gen_amalgamated expanded: #include "perfetto/ext/base/metatrace_events.h"
-// gen_amalgamated expanded: #include "perfetto/ext/base/utils.h"
-
-// A facility to trace execution of the perfetto codebase itself.
-// The meta-tracing framework is organized into three layers:
-//
-// 1. A static ring-buffer in base/ (this file) that supports concurrent writes
-//    and a single reader.
-//    The responsibility of this layer is to store events and counters as
-//    efficiently as possible without re-entering any tracing code.
-//    This is really a static-storage-based ring-buffer based on a POD array.
-//    This layer does NOT deal with serializing the meta-trace buffer.
-//    It posts a task when it's half full and expects something outside of
-//    base/ to drain the ring-buffer and serialize it, eventually writing it
-//    into the trace itself, before it gets 100% full.
-//
-// 2. A class in tracing/core which takes care of serializing the meta-trace
-//    buffer into the trace using a TraceWriter. See metatrace_writer.h .
-//
-// 3. A data source in traced_probes that, when be enabled via the trace config,
-//    injects metatrace events into the trace. See metatrace_data_source.h .
-//
-// The available events and tags are defined in metatrace_events.h .
-
-namespace perfetto {
-
-namespace base {
-class TaskRunner;
-}  // namespace base
-
-namespace metatrace {
-
-// Meta-tracing is organized in "tags" that can be selectively enabled. This is
-// to enable meta-tracing only of one sub-system. This word has one "enabled"
-// bit for each tag. 0 -> meta-tracing off.
-extern std::atomic<uint32_t> g_enabled_tags;
-
-// Time of the Enable() call. Used as a reference for keeping delta timestmaps
-// in Record.
-extern std::atomic<uint64_t> g_enabled_timestamp;
-
-// Enables meta-tracing for one or more tags. Once enabled it will discard any
-// further Enable() calls and return false until disabled,
-// |read_task| is a closure that will be called enqueued |task_runner| when the
-// meta-tracing ring buffer is half full. The task is expected to read the ring
-// buffer using RingBuffer::GetReadIterator() and serialize the contents onto a
-// file or into the trace itself.
-// Must be called on the |task_runner| passed.
-// |task_runner| must have static lifetime.
-bool Enable(std::function<void()> read_task, base::TaskRunner*, uint32_t tags);
-
-// Disables meta-tracing.
-// Must be called on the same |task_runner| as Enable().
-void Disable();
-
-inline uint64_t TraceTimeNowNs() {
-  return static_cast<uint64_t>(base::GetBootTimeNs().count());
-}
-
-// Returns a relaxed view of whether metatracing is enabled for the given tag.
-// Useful for skipping unnecessary argument computation if metatracing is off.
-inline bool IsEnabled(uint32_t tag) {
-  auto enabled_tags = g_enabled_tags.load(std::memory_order_relaxed);
-  return PERFETTO_UNLIKELY((enabled_tags & tag) != 0);
-}
-
-// Holds the data for a metatrace event or counter.
-struct Record {
-  static constexpr uint16_t kTypeMask = 0x8000;
-  static constexpr uint16_t kTypeCounter = 0x8000;
-  static constexpr uint16_t kTypeEvent = 0;
-
-  uint64_t timestamp_ns() const {
-    auto base_ns = g_enabled_timestamp.load(std::memory_order_relaxed);
-    PERFETTO_DCHECK(base_ns);
-    return base_ns + ((static_cast<uint64_t>(timestamp_ns_high) << 32) |
-                      timestamp_ns_low);
-  }
-
-  void set_timestamp(uint64_t ts) {
-    auto t_start = g_enabled_timestamp.load(std::memory_order_relaxed);
-    uint64_t diff = ts - t_start;
-    PERFETTO_DCHECK(diff < (1ull << 48));
-    timestamp_ns_low = static_cast<uint32_t>(diff);
-    timestamp_ns_high = static_cast<uint16_t>(diff >> 32);
-  }
-
-  // We can't just memset() this class because on MSVC std::atomic<> is not
-  // trivially constructible anymore. Also std::atomic<> has a deleted copy
-  // constructor so we cant just do "*this = Record()" either.
-  // See http://bit.ly/339Jlzd .
-  void clear() {
-    this->~Record();
-    new (this) Record();
-  }
-
-  // This field holds the type (counter vs event) in the MSB and event ID (as
-  // defined in metatrace_events.h) in the lowest 15 bits. It is also used also
-  // as a linearization point: this is always written after all the other
-  // fields with a release-store. This is so the reader can determine whether it
-  // can safely process the other event fields after a load-acquire.
-  std::atomic<uint16_t> type_and_id{};
-
-  // Timestamp is stored as a 48-bits value diffed against g_enabled_timestamp.
-  // This gives us 78 hours from Enabled().
-  uint16_t timestamp_ns_high = 0;
-  uint32_t timestamp_ns_low = 0;
-
-  uint32_t thread_id = 0;
-
-  union {
-    // Only one of the two elements can be zero initialized, clang complains
-    // about "initializing multiple members of union" otherwise.
-    uint32_t duration_ns = 0;  // If type == event.
-    int32_t counter_value;     // If type == counter.
-  };
-};
-
-// Hold the meta-tracing data into a statically allocated array.
-// This class uses static storage (as opposite to being a singleton) to:
-// - Have the guarantee of always valid storage, so that meta-tracing can be
-//   safely used in any part of the codebase, including base/ itself.
-// - Avoid barriers that thread-safe static locals would require.
-class RingBuffer {
- public:
-  static constexpr size_t kCapacity = 4096;  // 4096 * 16 bytes = 64K.
-
-  // This iterator is not idempotent and will bump the read index in the buffer
-  // at the end of the reads. There can be only one reader at any time.
-  // Usage: for (auto it = RingBuffer::GetReadIterator(); it; ++it) { it->... }
-  class ReadIterator {
-   public:
-    ReadIterator(ReadIterator&& other) {
-      PERFETTO_DCHECK(other.valid_);
-      cur_ = other.cur_;
-      end_ = other.end_;
-      valid_ = other.valid_;
-      other.valid_ = false;
-    }
-
-    ~ReadIterator() {
-      if (!valid_)
-        return;
-      PERFETTO_DCHECK(cur_ >= RingBuffer::rd_index_);
-      PERFETTO_DCHECK(cur_ <= RingBuffer::wr_index_);
-      RingBuffer::rd_index_.store(cur_, std::memory_order_release);
-    }
-
-    explicit operator bool() const { return cur_ < end_; }
-    const Record* operator->() const { return RingBuffer::At(cur_); }
-    const Record& operator*() const { return *operator->(); }
-
-    // This is for ++it. it++ is deliberately not supported.
-    ReadIterator& operator++() {
-      PERFETTO_DCHECK(cur_ < end_);
-      // Once a record has been read, mark it as free clearing its type_and_id,
-      // so if we encounter it in another read iteration while being written
-      // we know it's not fully written yet.
-      // The memory_order_relaxed below is enough because:
-      // - The reader is single-threaded and doesn't re-read the same records.
-      // - Before starting a read batch, the reader has an acquire barrier on
-      //   |rd_index_|.
-      // - After terminating a read batch, the ~ReadIterator dtor updates the
-      //   |rd_index_| with a release-store.
-      // - Reader and writer are typically kCapacity/2 apart. So unless an
-      //   overrun happens a writer won't reuse a newly released record any time
-      //   soon. If an overrun happens, everything is busted regardless.
-      At(cur_)->type_and_id.store(0, std::memory_order_relaxed);
-      ++cur_;
-      return *this;
-    }
-
-   private:
-    friend class RingBuffer;
-    ReadIterator(uint64_t begin, uint64_t end)
-        : cur_(begin), end_(end), valid_(true) {}
-    ReadIterator& operator=(const ReadIterator&) = delete;
-    ReadIterator(const ReadIterator&) = delete;
-
-    uint64_t cur_;
-    uint64_t end_;
-    bool valid_;
-  };
-
-  static Record* At(uint64_t index) {
-    // Doesn't really have to be pow2, but if not the compiler will emit
-    // arithmetic operations to compute the modulo instead of a bitwise AND.
-    static_assert(!(kCapacity & (kCapacity - 1)), "kCapacity must be pow2");
-    PERFETTO_DCHECK(index >= rd_index_);
-    PERFETTO_DCHECK(index <= wr_index_);
-    return &records_[index % kCapacity];
-  }
-
-  // Must be called on the same task runner passed to Enable()
-  static ReadIterator GetReadIterator() {
-    PERFETTO_DCHECK(RingBuffer::IsOnValidTaskRunner());
-    return ReadIterator(rd_index_.load(std::memory_order_acquire),
-                        wr_index_.load(std::memory_order_acquire));
-  }
-
-  static Record* AppendNewRecord();
-  static void Reset();
-
-  static bool has_overruns() {
-    return has_overruns_.load(std::memory_order_acquire);
-  }
-
-  // Can temporarily return a value >= kCapacity but is eventually consistent.
-  // This would happen in case of overruns until threads hit the --wr_index_
-  // in AppendNewRecord().
-  static uint64_t GetSizeForTesting() {
-    auto wr_index = wr_index_.load(std::memory_order_relaxed);
-    auto rd_index = rd_index_.load(std::memory_order_relaxed);
-    PERFETTO_DCHECK(wr_index >= rd_index);
-    return wr_index - rd_index;
-  }
-
- private:
-  friend class ReadIterator;
-
-  // Returns true if the caller is on the task runner passed to Enable().
-  // Used only for DCHECKs.
-  static bool IsOnValidTaskRunner();
-
-  static std::array<Record, kCapacity> records_;
-  static std::atomic<bool> read_task_queued_;
-  static std::atomic<uint64_t> wr_index_;
-  static std::atomic<uint64_t> rd_index_;
-  static std::atomic<bool> has_overruns_;
-  static Record bankruptcy_record_;  // Used in case of overruns.
-};
-
-inline void TraceCounter(uint32_t tag, uint16_t id, int32_t value) {
-  // memory_order_relaxed is okay because the storage has static lifetime.
-  // It is safe to accidentally log an event soon after disabling.
-  auto enabled_tags = g_enabled_tags.load(std::memory_order_relaxed);
-  if (PERFETTO_LIKELY((enabled_tags & tag) == 0))
-    return;
-  Record* record = RingBuffer::AppendNewRecord();
-  record->thread_id = static_cast<uint32_t>(base::GetThreadId());
-  record->set_timestamp(TraceTimeNowNs());
-  record->counter_value = value;
-  record->type_and_id.store(Record::kTypeCounter | id,
-                            std::memory_order_release);
-}
-
-class ScopedEvent {
- public:
-  ScopedEvent(uint32_t tag, uint16_t event_id) {
-    auto enabled_tags = g_enabled_tags.load(std::memory_order_relaxed);
-    if (PERFETTO_LIKELY((enabled_tags & tag) == 0))
-      return;
-    event_id_ = event_id;
-    record_ = RingBuffer::AppendNewRecord();
-    record_->thread_id = static_cast<uint32_t>(base::GetThreadId());
-    record_->set_timestamp(TraceTimeNowNs());
-  }
-
-  ~ScopedEvent() {
-    if (PERFETTO_LIKELY(!record_))
-      return;
-    auto now = TraceTimeNowNs();
-    record_->duration_ns = static_cast<uint32_t>(now - record_->timestamp_ns());
-    record_->type_and_id.store(Record::kTypeEvent | event_id_,
-                               std::memory_order_release);
-  }
-
- private:
-  Record* record_ = nullptr;
-  uint16_t event_id_ = 0;
-  ScopedEvent(const ScopedEvent&) = delete;
-  ScopedEvent& operator=(const ScopedEvent&) = delete;
-};
-
-// Boilerplate to derive a unique variable name for the event.
-#define PERFETTO_METATRACE_UID2(a, b) a##b
-#define PERFETTO_METATRACE_UID(x) PERFETTO_METATRACE_UID2(metatrace_, x)
-
-#define PERFETTO_METATRACE_SCOPED(TAG, ID)                                \
-  ::perfetto::metatrace::ScopedEvent PERFETTO_METATRACE_UID(__COUNTER__)( \
-      ::perfetto::metatrace::TAG, ::perfetto::metatrace::ID)
-
-#define PERFETTO_METATRACE_COUNTER(TAG, ID, VALUE)                \
-  ::perfetto::metatrace::TraceCounter(::perfetto::metatrace::TAG, \
-                                      ::perfetto::metatrace::ID,  \
-                                      static_cast<int32_t>(VALUE))
-
-}  // namespace metatrace
-}  // namespace perfetto
-
-#endif  // INCLUDE_PERFETTO_EXT_BASE_METATRACE_H_
-// gen_amalgamated begin header: include/perfetto/base/task_runner.h
-/*
- * Copyright (C) 2017 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef INCLUDE_PERFETTO_BASE_TASK_RUNNER_H_
-#define INCLUDE_PERFETTO_BASE_TASK_RUNNER_H_
-
-#include <stdint.h>
-
-#include <functional>
-
-// gen_amalgamated expanded: #include "perfetto/base/export.h"
-// gen_amalgamated expanded: #include "perfetto/base/platform_handle.h"
-
-namespace perfetto {
-namespace base {
-
-// A generic interface to allow the library clients to interleave the execution
-// of the tracing internals in their runtime environment.
-// The expectation is that all tasks, which are queued either via PostTask() or
-// AddFileDescriptorWatch(), are executed on the same sequence (either on the
-// same thread, or on a thread pool that gives sequencing guarantees).
-//
-// Tasks are never executed synchronously inside PostTask and there is a full
-// memory barrier between tasks.
-//
-// All methods of this interface can be called from any thread.
-class PERFETTO_EXPORT TaskRunner {
- public:
-  virtual ~TaskRunner();
-
-  // Schedule a task for immediate execution. Immediate tasks are always
-  // executed in the order they are posted. Can be called from any thread.
-  virtual void PostTask(std::function<void()>) = 0;
-
-  // Schedule a task for execution after |delay_ms|. Note that there is no
-  // strict ordering guarantee between immediate and delayed tasks. Can be
-  // called from any thread.
-  virtual void PostDelayedTask(std::function<void()>, uint32_t delay_ms) = 0;
-
-  // Schedule a task to run when the handle becomes readable. The same handle
-  // can only be monitored by one function. Note that this function only needs
-  // to be implemented on platforms where the built-in ipc framework is used.
-  // Can be called from any thread.
-  // TODO(skyostil): Refactor this out of the shared interface.
-  virtual void AddFileDescriptorWatch(PlatformHandle,
-                                      std::function<void()>) = 0;
-
-  // Remove a previously scheduled watch for the handle. If this is run on the
-  // target thread of this TaskRunner, guarantees that the task registered to
-  // this handle will not be executed after this function call.
-  // Can be called from any thread.
-  virtual void RemoveFileDescriptorWatch(PlatformHandle) = 0;
-
-  // Checks if the current thread is the same thread where the TaskRunner's task
-  // run. This allows single threaded task runners (like the ones used in
-  // perfetto) to inform the caller that anything posted will run on the same
-  // thread/sequence. This can allow some callers to skip PostTask and instead
-  // directly execute the code. Can be called from any thread.
-  virtual bool RunsTasksOnCurrentThread() const = 0;
-};
-
-}  // namespace base
-}  // namespace perfetto
-
-#endif  // INCLUDE_PERFETTO_BASE_TASK_RUNNER_H_
-// gen_amalgamated begin header: include/perfetto/ext/base/thread_annotations.h
-/*
- * Copyright (C) 2019 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef INCLUDE_PERFETTO_EXT_BASE_THREAD_ANNOTATIONS_H_
-#define INCLUDE_PERFETTO_EXT_BASE_THREAD_ANNOTATIONS_H_
-
-// gen_amalgamated expanded: #include "perfetto/base/build_config.h"
-
-// Windows TSAN doesn't currently support these annotations.
-#if defined(THREAD_SANITIZER) && !PERFETTO_BUILDFLAG(PERFETTO_OS_WIN)
-extern "C" {
-void AnnotateBenignRaceSized(const char* file,
-                             int line,
-                             unsigned long address,
-                             unsigned long size,
-                             const char* description);
-}
-
-#define PERFETTO_ANNOTATE_BENIGN_RACE_SIZED(pointer, size, description)   \
-  AnnotateBenignRaceSized(__FILE__, __LINE__,                             \
-                          reinterpret_cast<unsigned long>(pointer), size, \
-                          description);
-#else  // defined(ADDRESS_SANITIZER)
-#define PERFETTO_ANNOTATE_BENIGN_RACE_SIZED(pointer, size, description)
-#endif  // defined(ADDRESS_SANITIZER)
-
-#endif  // INCLUDE_PERFETTO_EXT_BASE_THREAD_ANNOTATIONS_H_
-/*
- * Copyright (C) 2018 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-// gen_amalgamated expanded: #include "perfetto/ext/base/metatrace.h"
-
-// gen_amalgamated expanded: #include "perfetto/base/compiler.h"
-// gen_amalgamated expanded: #include "perfetto/base/task_runner.h"
-// gen_amalgamated expanded: #include "perfetto/base/time.h"
-// gen_amalgamated expanded: #include "perfetto/ext/base/file_utils.h"
-// gen_amalgamated expanded: #include "perfetto/ext/base/thread_annotations.h"
-
-namespace perfetto {
-namespace metatrace {
-
-std::atomic<uint32_t> g_enabled_tags{0};
-std::atomic<uint64_t> g_enabled_timestamp{0};
-
-// static members
-constexpr size_t RingBuffer::kCapacity;
-std::array<Record, RingBuffer::kCapacity> RingBuffer::records_;
-std::atomic<bool> RingBuffer::read_task_queued_;
-std::atomic<uint64_t> RingBuffer::wr_index_;
-std::atomic<uint64_t> RingBuffer::rd_index_;
-std::atomic<bool> RingBuffer::has_overruns_;
-Record RingBuffer::bankruptcy_record_;
-
-constexpr uint16_t Record::kTypeMask;
-constexpr uint16_t Record::kTypeCounter;
-constexpr uint16_t Record::kTypeEvent;
-
-namespace {
-
-// std::function<> is not trivially de/constructible. This struct wraps it in a
-// heap-allocated struct to avoid static initializers.
-struct Delegate {
-  static Delegate* GetInstance() {
-    static Delegate* instance = new Delegate();
-    return instance;
-  }
-
-  base::TaskRunner* task_runner = nullptr;
-  std::function<void()> read_task;
-};
-
-}  // namespace
-
-bool Enable(std::function<void()> read_task,
-            base::TaskRunner* task_runner,
-            uint32_t tags) {
-  PERFETTO_DCHECK(read_task);
-  PERFETTO_DCHECK(task_runner->RunsTasksOnCurrentThread());
-  if (g_enabled_tags.load(std::memory_order_acquire))
-    return false;
-
-  Delegate* dg = Delegate::GetInstance();
-  dg->task_runner = task_runner;
-  dg->read_task = std::move(read_task);
-  RingBuffer::Reset();
-  g_enabled_timestamp.store(TraceTimeNowNs(), std::memory_order_relaxed);
-  g_enabled_tags.store(tags, std::memory_order_release);
-  return true;
-}
-
-void Disable() {
-  g_enabled_tags.store(0, std::memory_order_release);
-  Delegate* dg = Delegate::GetInstance();
-  PERFETTO_DCHECK(!dg->task_runner ||
-                  dg->task_runner->RunsTasksOnCurrentThread());
-  dg->task_runner = nullptr;
-  dg->read_task = nullptr;
-}
-
-// static
-void RingBuffer::Reset() {
-  bankruptcy_record_.clear();
-  for (Record& record : records_)
-    record.clear();
-  wr_index_ = 0;
-  rd_index_ = 0;
-  has_overruns_ = false;
-  read_task_queued_ = false;
-}
-
-// static
-Record* RingBuffer::AppendNewRecord() {
-  auto wr_index = wr_index_.fetch_add(1, std::memory_order_acq_rel);
-
-  // rd_index can only monotonically increase, we don't care if we read an
-  // older value, we'll just hit the slow-path a bit earlier if it happens.
-  auto rd_index = rd_index_.load(std::memory_order_relaxed);
-
-  PERFETTO_DCHECK(wr_index >= rd_index);
-  auto size = wr_index - rd_index;
-  if (PERFETTO_LIKELY(size < kCapacity / 2))
-    return At(wr_index);
-
-  // Slow-path: Enqueue the read task and handle overruns.
-  bool expected = false;
-  if (RingBuffer::read_task_queued_.compare_exchange_strong(expected, true)) {
-    Delegate* dg = Delegate::GetInstance();
-    if (dg->task_runner) {
-      dg->task_runner->PostTask([] {
-        // Meta-tracing might have been disabled in the meantime.
-        auto read_task = Delegate::GetInstance()->read_task;
-        if (read_task)
-          read_task();
-        RingBuffer::read_task_queued_ = false;
-      });
-    }
-  }
-
-  if (PERFETTO_LIKELY(size < kCapacity))
-    return At(wr_index);
-
-  has_overruns_.store(true, std::memory_order_release);
-  wr_index_.fetch_sub(1, std::memory_order_acq_rel);
-
-  // In the case of overflows, threads will race writing on the same memory
-  // location and TSan will rightly complain. This is fine though because nobody
-  // will read the bankruptcy record and it's designed to contain garbage.
-  PERFETTO_ANNOTATE_BENIGN_RACE_SIZED(&bankruptcy_record_, sizeof(Record),
-                                      "nothing reads bankruptcy_record_")
-  return &bankruptcy_record_;
-}
-
-// static
-bool RingBuffer::IsOnValidTaskRunner() {
-  auto* task_runner = Delegate::GetInstance()->task_runner;
-  return task_runner && task_runner->RunsTasksOnCurrentThread();
-}
-
-}  // namespace metatrace
-}  // namespace perfetto
-// gen_amalgamated begin source: src/base/paged_memory.cc
-// gen_amalgamated begin header: include/perfetto/ext/base/paged_memory.h
-// gen_amalgamated begin header: include/perfetto/ext/base/container_annotations.h
-/*
- * Copyright (C) 2018 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef INCLUDE_PERFETTO_EXT_BASE_CONTAINER_ANNOTATIONS_H_
-#define INCLUDE_PERFETTO_EXT_BASE_CONTAINER_ANNOTATIONS_H_
-
-// gen_amalgamated expanded: #include "perfetto/base/build_config.h"
-
-// Windows ASAN doesn't currently support these annotations.
-#if defined(ADDRESS_SANITIZER) && !PERFETTO_BUILDFLAG(PERFETTO_OS_WIN) && \
-    !defined(ADDRESS_SANITIZER_WITHOUT_INSTRUMENTATION)
-
-#define ANNOTATE_NEW_BUFFER(buffer, capacity, new_size)                      \
-  if (buffer) {                                                              \
-    __sanitizer_annotate_contiguous_container(buffer, (buffer) + (capacity), \
-                                              (buffer) + (capacity),         \
-                                              (buffer) + (new_size));        \
-  }
-#define ANNOTATE_DELETE_BUFFER(buffer, capacity, old_size)                   \
-  if (buffer) {                                                              \
-    __sanitizer_annotate_contiguous_container(buffer, (buffer) + (capacity), \
-                                              (buffer) + (old_size),         \
-                                              (buffer) + (capacity));        \
-  }
-#define ANNOTATE_CHANGE_SIZE(buffer, capacity, old_size, new_size)           \
-  if (buffer) {                                                              \
-    __sanitizer_annotate_contiguous_container(buffer, (buffer) + (capacity), \
-                                              (buffer) + (old_size),         \
-                                              (buffer) + (new_size));        \
-  }
-#define ANNOTATE_CHANGE_CAPACITY(buffer, old_capacity, buffer_size, \
-                                 new_capacity)                      \
-  ANNOTATE_DELETE_BUFFER(buffer, old_capacity, buffer_size);        \
-  ANNOTATE_NEW_BUFFER(buffer, new_capacity, buffer_size);
-// Annotations require buffers to begin on an 8-byte boundary.
-#else  // defined(ADDRESS_SANITIZER)
-#define ANNOTATE_NEW_BUFFER(buffer, capacity, new_size)
-#define ANNOTATE_DELETE_BUFFER(buffer, capacity, old_size)
-#define ANNOTATE_CHANGE_SIZE(buffer, capacity, old_size, new_size)
-#define ANNOTATE_CHANGE_CAPACITY(buffer, old_capacity, buffer_size, \
-                                 new_capacity)
-#endif  // defined(ADDRESS_SANITIZER)
-
-#endif  // INCLUDE_PERFETTO_EXT_BASE_CONTAINER_ANNOTATIONS_H_
-/*
- * Copyright (C) 2017 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef INCLUDE_PERFETTO_EXT_BASE_PAGED_MEMORY_H_
-#define INCLUDE_PERFETTO_EXT_BASE_PAGED_MEMORY_H_
-
-#include <memory>
-
-// gen_amalgamated expanded: #include "perfetto/base/build_config.h"
-// gen_amalgamated expanded: #include "perfetto/ext/base/container_annotations.h"
-
-// We need to track the committed size on windows and when ASAN is enabled.
-#if PERFETTO_BUILDFLAG(PERFETTO_OS_WIN) || defined(ADDRESS_SANITIZER)
-#define TRACK_COMMITTED_SIZE() 1
-#else
-#define TRACK_COMMITTED_SIZE() 0
-#endif
-
-namespace perfetto {
-namespace base {
-
-class PagedMemory {
- public:
-  // Initializes an invalid PagedMemory pointing to nullptr.
-  PagedMemory();
-
-  ~PagedMemory();
-
-  PagedMemory(PagedMemory&& other) noexcept;
-  PagedMemory& operator=(PagedMemory&& other);
-
-  enum AllocationFlags {
-    // By default, Allocate() crashes if the underlying mmap fails (e.g., if out
-    // of virtual address space). When this flag is provided, an invalid
-    // PagedMemory pointing to nullptr is returned in this case instead.
-    kMayFail = 1 << 0,
-
-    // By default, Allocate() commits the allocated memory immediately. When
-    // this flag is provided, the memory virtual address space may only be
-    // reserved and the user should call EnsureCommitted() before writing to
-    // memory addresses.
-    kDontCommit = 1 << 1,
-  };
-
-  // Allocates |size| bytes using mmap(MAP_ANONYMOUS). The returned memory is
-  // guaranteed to be page-aligned and guaranteed to be zeroed.
-  // For |flags|, see the AllocationFlags enum above.
-  static PagedMemory Allocate(size_t size, int flags = 0);
-
-  // Hint to the OS that the memory range is not needed and can be discarded.
-  // The memory remains accessible and its contents may be retained, or they
-  // may be zeroed. This function may be a NOP on some platforms. Returns true
-  // if implemented.
-  bool AdviseDontNeed(void* p, size_t size);
-
-  // Ensures that at least the first |committed_size| bytes of the allocated
-  // memory region are committed. The implementation may commit memory in larger
-  // chunks above |committed_size|. Crashes if the memory couldn't be committed.
-#if TRACK_COMMITTED_SIZE()
-  void EnsureCommitted(size_t committed_size);
-#else   // TRACK_COMMITTED_SIZE()
-  void EnsureCommitted(size_t /*committed_size*/) {}
-#endif  // TRACK_COMMITTED_SIZE()
-
-  inline void* Get() const noexcept { return p_; }
-  inline bool IsValid() const noexcept { return !!p_; }
-  inline size_t size() const noexcept { return size_; }
-
- private:
-  PagedMemory(char* p, size_t size);
-
-  PagedMemory(const PagedMemory&) = delete;
-  // Defaulted for implementation of move constructor + assignment.
-  PagedMemory& operator=(const PagedMemory&) = default;
-
-  char* p_ = nullptr;
-
-  // The size originally passed to Allocate(). The actual virtual memory
-  // reservation will be larger due to: (i) guard pages; (ii) rounding up to
-  // the system page size.
-  size_t size_ = 0;
-
-#if TRACK_COMMITTED_SIZE()
-  size_t committed_size_ = 0u;
-#endif  // TRACK_COMMITTED_SIZE()
-};
-
-}  // namespace base
-}  // namespace perfetto
-
-#endif  // INCLUDE_PERFETTO_EXT_BASE_PAGED_MEMORY_H_
-/*
- * Copyright (C) 2017 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-// gen_amalgamated expanded: #include "perfetto/ext/base/paged_memory.h"
-
-#include <algorithm>
-#include <cmath>
-
-#if PERFETTO_BUILDFLAG(PERFETTO_OS_WIN)
-#include <Windows.h>
-#else  // PERFETTO_BUILDFLAG(PERFETTO_OS_WIN)
-#include <sys/mman.h>
-#endif  // PERFETTO_BUILDFLAG(PERFETTO_OS_WIN)
-
-// gen_amalgamated expanded: #include "perfetto/base/logging.h"
-// gen_amalgamated expanded: #include "perfetto/ext/base/container_annotations.h"
-// gen_amalgamated expanded: #include "perfetto/ext/base/utils.h"
-
-namespace perfetto {
-namespace base {
-
-namespace {
-
-#if TRACK_COMMITTED_SIZE()
-constexpr size_t kCommitChunkSize = 4 * 1024 * 1024;  // 4MB
-#endif
-
-size_t RoundUpToSysPageSize(size_t req_size) {
-  const size_t page_size = GetSysPageSize();
-  return (req_size + page_size - 1) & ~(page_size - 1);
-}
-
-size_t GuardSize() {
-  return GetSysPageSize();
-}
-
-}  // namespace
-
-// static
-PagedMemory PagedMemory::Allocate(size_t req_size, int flags) {
-  size_t rounded_up_size = RoundUpToSysPageSize(req_size);
-  PERFETTO_CHECK(rounded_up_size >= req_size);
-  size_t outer_size = rounded_up_size + GuardSize() * 2;
-#if PERFETTO_BUILDFLAG(PERFETTO_OS_WIN)
-  void* ptr = VirtualAlloc(nullptr, outer_size, MEM_RESERVE, PAGE_NOACCESS);
-  if (!ptr && (flags & kMayFail))
-    return PagedMemory();
-  PERFETTO_CHECK(ptr);
-  char* usable_region = reinterpret_cast<char*>(ptr) + GuardSize();
-#else   // PERFETTO_BUILDFLAG(PERFETTO_OS_WIN)
-  void* ptr = mmap(nullptr, outer_size, PROT_READ | PROT_WRITE,
-                   MAP_PRIVATE | MAP_ANONYMOUS, -1, 0);
-  if (ptr == MAP_FAILED && (flags & kMayFail))
-    return PagedMemory();
-  PERFETTO_CHECK(ptr && ptr != MAP_FAILED);
-  char* usable_region = reinterpret_cast<char*>(ptr) + GuardSize();
-  int res = mprotect(ptr, GuardSize(), PROT_NONE);
-  res |= mprotect(usable_region + rounded_up_size, GuardSize(), PROT_NONE);
-  PERFETTO_CHECK(res == 0);
-#endif  // PERFETTO_BUILDFLAG(PERFETTO_OS_WIN)
-
-  auto memory = PagedMemory(usable_region, req_size);
-#if TRACK_COMMITTED_SIZE()
-  size_t initial_commit = req_size;
-  if (flags & kDontCommit)
-    initial_commit = std::min(initial_commit, kCommitChunkSize);
-  memory.EnsureCommitted(initial_commit);
-#endif  // TRACK_COMMITTED_SIZE()
-  return memory;
-}
-
-PagedMemory::PagedMemory() {}
-
-// clang-format off
-PagedMemory::PagedMemory(char* p, size_t size) : p_(p), size_(size) {
-  ANNOTATE_NEW_BUFFER(p_, size_, committed_size_)
-}
-
-PagedMemory::PagedMemory(PagedMemory&& other) noexcept {
-  *this = other;
-  other.p_ = nullptr;
-}
-// clang-format on
-
-PagedMemory& PagedMemory::operator=(PagedMemory&& other) {
-  this->~PagedMemory();
-  new (this) PagedMemory(std::move(other));
-  return *this;
-}
-
-PagedMemory::~PagedMemory() {
-  if (!p_)
-    return;
-  PERFETTO_CHECK(size_);
-  char* start = p_ - GuardSize();
-#if PERFETTO_BUILDFLAG(PERFETTO_OS_WIN)
-  BOOL res = VirtualFree(start, 0, MEM_RELEASE);
-  PERFETTO_CHECK(res != 0);
-#else   // PERFETTO_BUILDFLAG(PERFETTO_OS_WIN)
-  const size_t outer_size = RoundUpToSysPageSize(size_) + GuardSize() * 2;
-  int res = munmap(start, outer_size);
-  PERFETTO_CHECK(res == 0);
-#endif  // PERFETTO_BUILDFLAG(PERFETTO_OS_WIN)
-  ANNOTATE_DELETE_BUFFER(p_, size_, committed_size_)
-}
-
-bool PagedMemory::AdviseDontNeed(void* p, size_t size) {
-  PERFETTO_DCHECK(p_);
-  PERFETTO_DCHECK(p >= p_);
-  PERFETTO_DCHECK(static_cast<char*>(p) + size <= p_ + size_);
-#if PERFETTO_BUILDFLAG(PERFETTO_OS_WIN) || PERFETTO_BUILDFLAG(PERFETTO_OS_NACL)
-  // Discarding pages on Windows has more CPU cost than is justified for the
-  // possible memory savings.
-  return false;
-#else   // PERFETTO_BUILDFLAG(PERFETTO_OS_WIN) ||
-        // PERFETTO_BUILDFLAG(PERFETTO_OS_NACL)
-  // http://man7.org/linux/man-pages/man2/madvise.2.html
-  int res = madvise(p, size, MADV_DONTNEED);
-  PERFETTO_DCHECK(res == 0);
-  return true;
-#endif  // PERFETTO_BUILDFLAG(PERFETTO_OS_WIN) ||
-        // PERFETTO_BUILDFLAG(PERFETTO_OS_NACL)
-}
-
-#if TRACK_COMMITTED_SIZE()
-void PagedMemory::EnsureCommitted(size_t committed_size) {
-  PERFETTO_DCHECK(committed_size > 0u);
-  PERFETTO_DCHECK(committed_size <= size_);
-#if PERFETTO_BUILDFLAG(PERFETTO_OS_WIN)
-  if (committed_size_ >= committed_size)
-    return;
-  // Rounding up.
-  size_t delta = committed_size - committed_size_;
-  size_t num_additional_chunks =
-      (delta + kCommitChunkSize - 1) / kCommitChunkSize;
-  PERFETTO_DCHECK(num_additional_chunks * kCommitChunkSize >= delta);
-  // Don't commit more than the total size.
-  size_t commit_size = std::min(num_additional_chunks * kCommitChunkSize,
-                                size_ - committed_size_);
-  void* res = VirtualAlloc(p_ + committed_size_, commit_size, MEM_COMMIT,
-                           PAGE_READWRITE);
-  PERFETTO_CHECK(res);
-  ANNOTATE_CHANGE_SIZE(p_, size_, committed_size_,
-                       committed_size_ + commit_size)
-  committed_size_ += commit_size;
-#else   // PERFETTO_BUILDFLAG(PERFETTO_OS_WIN)
-  // mmap commits automatically as needed, so we only track here for ASAN.
-  committed_size = std::max(committed_size_, committed_size);
-  ANNOTATE_CHANGE_SIZE(p_, size_, committed_size_, committed_size)
-  committed_size_ = committed_size;
-#endif  // PERFETTO_BUILDFLAG(PERFETTO_OS_WIN)
-}
-#endif  // TRACK_COMMITTED_SIZE()
-
-}  // namespace base
-}  // namespace perfetto
-// gen_amalgamated begin source: src/base/periodic_task.cc
-// gen_amalgamated begin header: include/perfetto/ext/base/periodic_task.h
-// gen_amalgamated begin header: include/perfetto/ext/base/thread_checker.h
-/*
- * Copyright (C) 2017 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef INCLUDE_PERFETTO_EXT_BASE_THREAD_CHECKER_H_
-#define INCLUDE_PERFETTO_EXT_BASE_THREAD_CHECKER_H_
-
-// gen_amalgamated expanded: #include "perfetto/base/build_config.h"
-
-#if !PERFETTO_BUILDFLAG(PERFETTO_OS_WIN)
-#include <pthread.h>
-#endif
-#include <atomic>
-
-// gen_amalgamated expanded: #include "perfetto/base/export.h"
-// gen_amalgamated expanded: #include "perfetto/base/logging.h"
-// gen_amalgamated expanded: #include "perfetto/ext/base/utils.h"
-
-namespace perfetto {
-namespace base {
-
-#if PERFETTO_BUILDFLAG(PERFETTO_OS_WIN)
-using ThreadID = unsigned long;
-#else
-using ThreadID = pthread_t;
-#endif
-
-class PERFETTO_EXPORT ThreadChecker {
- public:
-  ThreadChecker();
-  ~ThreadChecker();
-  ThreadChecker(const ThreadChecker&);
-  ThreadChecker& operator=(const ThreadChecker&);
-  bool CalledOnValidThread() const PERFETTO_WARN_UNUSED_RESULT;
-  void DetachFromThread();
-
- private:
-  mutable std::atomic<ThreadID> thread_id_;
-};
-
-#if PERFETTO_DCHECK_IS_ON() && !PERFETTO_BUILDFLAG(PERFETTO_CHROMIUM_BUILD)
-// TODO(primiano) Use Chromium's thread checker in Chromium.
-#define PERFETTO_THREAD_CHECKER(name) base::ThreadChecker name;
-#define PERFETTO_DCHECK_THREAD(name) \
-  PERFETTO_DCHECK((name).CalledOnValidThread())
-#define PERFETTO_DETACH_FROM_THREAD(name) (name).DetachFromThread()
-#else
-#define PERFETTO_THREAD_CHECKER(name)
-#define PERFETTO_DCHECK_THREAD(name)
-#define PERFETTO_DETACH_FROM_THREAD(name)
-#endif  // PERFETTO_DCHECK_IS_ON()
-
-}  // namespace base
-}  // namespace perfetto
-
-#endif  // INCLUDE_PERFETTO_EXT_BASE_THREAD_CHECKER_H_
-// gen_amalgamated begin header: include/perfetto/ext/base/weak_ptr.h
-/*
- * Copyright (C) 2017 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef INCLUDE_PERFETTO_EXT_BASE_WEAK_PTR_H_
-#define INCLUDE_PERFETTO_EXT_BASE_WEAK_PTR_H_
-
-// gen_amalgamated expanded: #include "perfetto/ext/base/thread_checker.h"
-
-#include <memory>
-
-namespace perfetto {
-namespace base {
-
-// A simple WeakPtr for single-threaded cases.
-// Generally keep the WeakPtrFactory as last fields in classes: it makes the
-// WeakPtr(s) invalidate as first thing in the class dtor.
-// Usage:
-// class MyClass {
-//  MyClass() : weak_factory_(this) {}
-//  WeakPtr<MyClass> GetWeakPtr() { return weak_factory_.GetWeakPtr(); }
-//
-// private:
-//  WeakPtrFactory<MyClass> weak_factory_;
-// }
-//
-// int main() {
-//  std::unique_ptr<MyClass> foo(new MyClass);
-//  auto wptr = foo.GetWeakPtr();
-//  ASSERT_TRUE(wptr);
-//  ASSERT_EQ(foo.get(), wptr->get());
-//  foo.reset();
-//  ASSERT_FALSE(wptr);
-//  ASSERT_EQ(nullptr, wptr->get());
-// }
-
-template <typename T>
-class WeakPtrFactory;  // Forward declaration, defined below.
-
-template <typename T>
-class WeakPtr {
- public:
-  WeakPtr() {}
-  WeakPtr(const WeakPtr&) = default;
-  WeakPtr& operator=(const WeakPtr&) = default;
-  WeakPtr(WeakPtr&&) = default;
-  WeakPtr& operator=(WeakPtr&&) = default;
-
-  T* get() const {
-    PERFETTO_DCHECK_THREAD(thread_checker);
-    return handle_ ? *handle_.get() : nullptr;
-  }
-  T* operator->() const { return get(); }
-  T& operator*() const { return *get(); }
-
-  explicit operator bool() const { return !!get(); }
-
- private:
-  friend class WeakPtrFactory<T>;
-  explicit WeakPtr(const std::shared_ptr<T*>& handle) : handle_(handle) {}
-
-  std::shared_ptr<T*> handle_;
-  PERFETTO_THREAD_CHECKER(thread_checker)
-};
-
-template <typename T>
-class WeakPtrFactory {
- public:
-  explicit WeakPtrFactory(T* owner)
-      : weak_ptr_(std::shared_ptr<T*>(new T* {owner})) {
-    PERFETTO_DCHECK_THREAD(thread_checker);
-  }
-
-  ~WeakPtrFactory() {
-    PERFETTO_DCHECK_THREAD(thread_checker);
-    *(weak_ptr_.handle_.get()) = nullptr;
-  }
-
-  // Can be safely called on any thread, since it simply copies |weak_ptr_|.
-  // Note that any accesses to the returned pointer need to be made on the
-  // thread that created/reset the factory.
-  WeakPtr<T> GetWeakPtr() const { return weak_ptr_; }
-
-  // Reset the factory to a new owner & thread. May only be called before any
-  // weak pointers were passed out. Future weak pointers will be valid on the
-  // calling thread.
-  void Reset(T* owner) {
-    // Reset thread checker to current thread.
-    PERFETTO_DETACH_FROM_THREAD(thread_checker);
-    PERFETTO_DCHECK_THREAD(thread_checker);
-
-    // We should not have passed out any weak pointers yet at this point.
-    PERFETTO_DCHECK(weak_ptr_.handle_.use_count() == 1);
-
-    weak_ptr_ = WeakPtr<T>(std::shared_ptr<T*>(new T* {owner}));
-  }
-
- private:
-  WeakPtrFactory(const WeakPtrFactory&) = delete;
-  WeakPtrFactory& operator=(const WeakPtrFactory&) = delete;
-
-  WeakPtr<T> weak_ptr_;
-  PERFETTO_THREAD_CHECKER(thread_checker)
-};
-
-}  // namespace base
-}  // namespace perfetto
-
-#endif  // INCLUDE_PERFETTO_EXT_BASE_WEAK_PTR_H_
-/*
- * Copyright (C) 2021 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef INCLUDE_PERFETTO_EXT_BASE_PERIODIC_TASK_H_
-#define INCLUDE_PERFETTO_EXT_BASE_PERIODIC_TASK_H_
-
-#include <functional>
-
-// gen_amalgamated expanded: #include "perfetto/ext/base/scoped_file.h"
-// gen_amalgamated expanded: #include "perfetto/ext/base/thread_checker.h"
-// gen_amalgamated expanded: #include "perfetto/ext/base/weak_ptr.h"
-
-namespace perfetto {
-namespace base {
-
-class TaskRunner;
-
-// A periodic task utility class. It wraps the logic necessary to do periodic
-// tasks using a TaskRunner, taking care of subtleties like ensuring that
-// outstanding tasks are cancelled after reset/dtor.
-// Tasks are aligned on wall time, this is to ensure that when using multiple
-// periodic tasks, they happen at the same time, minimizing wakeups.
-// On Linux/Android it also supports suspend-aware mode (via timerfd). On other
-// operating systems it falls back to PostDelayedTask, which is not
-// suspend-aware.
-// TODO(primiano): this should probably become a periodic timer scheduler, so we
-// can use one FD for everything rather than one FD per task. For now we take
-// the hit of a FD-per-task to keep this low-risk.
-class PeriodicTask {
- public:
-  explicit PeriodicTask(base::TaskRunner*);
-  ~PeriodicTask();  // Calls Reset().
-
-  struct Args {
-    uint32_t period_ms = 0;
-    std::function<void()> task = nullptr;
-    bool start_first_task_immediately = false;
-    bool use_suspend_aware_timer = false;
-  };
-
-  void Start(Args);
-
-  // Safe to be called multiple times, even without calling Start():
-  void Reset();
-
-  // No copy or move. WeakPtr-wrapped pointers to |this| are posted on the
-  // task runner, this class is not easily movable.
-  PeriodicTask(const PeriodicTask&) = delete;
-  PeriodicTask& operator=(const PeriodicTask&) = delete;
-  PeriodicTask(PeriodicTask&&) = delete;
-  PeriodicTask& operator=(PeriodicTask&&) = delete;
-
-  base::PlatformHandle timer_fd_for_testing() { return *timer_fd_; }
-
- private:
-  static void RunTaskAndPostNext(base::WeakPtr<PeriodicTask>,
-                                 uint32_t generation);
-  void PostNextTask();
-  void ResetTimerFd();
-
-  base::TaskRunner* const task_runner_;
-  Args args_;
-  uint32_t generation_ = 0;
-  base::ScopedPlatformHandle timer_fd_;
-
-  PERFETTO_THREAD_CHECKER(thread_checker_)
-  base::WeakPtrFactory<PeriodicTask> weak_ptr_factory_;  // Keep last.
-};
-
-}  // namespace base
-}  // namespace perfetto
-
-#endif  // INCLUDE_PERFETTO_EXT_BASE_PERIODIC_TASK_H_
-/*
- * Copyright (C) 2021 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-// gen_amalgamated expanded: #include "perfetto/ext/base/periodic_task.h"
-
-#include <limits>
-
-// gen_amalgamated expanded: #include "perfetto/base/build_config.h"
-// gen_amalgamated expanded: #include "perfetto/base/logging.h"
-// gen_amalgamated expanded: #include "perfetto/base/task_runner.h"
-// gen_amalgamated expanded: #include "perfetto/base/time.h"
-// gen_amalgamated expanded: #include "perfetto/ext/base/file_utils.h"
-
-#if PERFETTO_BUILDFLAG(PERFETTO_OS_LINUX) || \
-    (PERFETTO_BUILDFLAG(PERFETTO_OS_ANDROID) && __ANDROID_API__ >= 19)
-#include <sys/timerfd.h>
-#endif
-
-namespace perfetto {
-namespace base {
-
-namespace {
-base::ScopedPlatformHandle CreateTimerFd(uint32_t period_ms) {
-#if PERFETTO_BUILDFLAG(PERFETTO_OS_LINUX) || \
-    (PERFETTO_BUILDFLAG(PERFETTO_OS_ANDROID) && __ANDROID_API__ >= 19)
-  base::ScopedPlatformHandle tfd(
-      timerfd_create(CLOCK_BOOTTIME, TFD_CLOEXEC | TFD_NONBLOCK));
-  // The initial phase, aligned on wall clock.
-  uint32_t phase_ms =
-      period_ms -
-      static_cast<uint32_t>(base::GetBootTimeNs().count() % period_ms);
-  struct itimerspec its {};
-  // The "1 +" is to make sure that we never pass a zero it_value in the
-  // unlikely case of phase_ms being 0. That would cause the timer to be
-  // considered disarmed by timerfd_settime.
-  its.it_value.tv_sec = static_cast<time_t>(phase_ms / 1000u);
-  its.it_value.tv_nsec = 1 + static_cast<long>((phase_ms % 1000u) * 1000000u);
-  its.it_interval.tv_sec = static_cast<time_t>(period_ms / 1000u);
-  its.it_interval.tv_nsec = static_cast<long>((period_ms % 1000u) * 1000000u);
-  if (timerfd_settime(*tfd, 0, &its, nullptr) < 0)
-    return base::ScopedPlatformHandle();
-  return tfd;
-#else
-  base::ignore_result(period_ms);
-  return base::ScopedPlatformHandle();
-#endif
-}
-}  // namespace
-
-PeriodicTask::PeriodicTask(base::TaskRunner* task_runner)
-    : task_runner_(task_runner), weak_ptr_factory_(this) {}
-
-PeriodicTask::~PeriodicTask() {
-  Reset();
-}
-
-void PeriodicTask::Start(Args args) {
-  PERFETTO_DCHECK_THREAD(thread_checker_);
-  Reset();
-  if (args.period_ms == 0 || !args.task) {
-    PERFETTO_DCHECK(args.period_ms > 0);
-    PERFETTO_DCHECK(args.task);
-    return;
-  }
-  args_ = std::move(args);
-  if (args_.use_suspend_aware_timer) {
-    timer_fd_ = CreateTimerFd(args_.period_ms);
-    if (timer_fd_) {
-      auto weak_this = weak_ptr_factory_.GetWeakPtr();
-      task_runner_->AddFileDescriptorWatch(
-          *timer_fd_,
-          std::bind(PeriodicTask::RunTaskAndPostNext, weak_this, generation_));
-    } else {
-      PERFETTO_DPLOG("timerfd not supported, falling back on PostDelayedTask");
-    }
-  }  // if (use_suspend_aware_timer).
-
-  if (!timer_fd_)
-    PostNextTask();
-
-  if (args_.start_first_task_immediately)
-    args_.task();
-}
-
-void PeriodicTask::PostNextTask() {
-  PERFETTO_DCHECK_THREAD(thread_checker_);
-  PERFETTO_DCHECK(args_.period_ms > 0);
-  PERFETTO_DCHECK(!timer_fd_);
-  uint32_t delay_ms =
-      args_.period_ms -
-      static_cast<uint32_t>(base::GetWallTimeMs().count() % args_.period_ms);
-  auto weak_this = weak_ptr_factory_.GetWeakPtr();
-  task_runner_->PostDelayedTask(
-      std::bind(PeriodicTask::RunTaskAndPostNext, weak_this, generation_),
-      delay_ms);
-}
-
-// static
-// This function can be called in two ways (both from the TaskRunner):
-// 1. When using a timerfd, this task is registered as a FD watch.
-// 2. When using PostDelayedTask, this is the task posted on the TaskRunner.
-void PeriodicTask::RunTaskAndPostNext(base::WeakPtr<PeriodicTask> thiz,
-                                      uint32_t generation) {
-  if (!thiz || !thiz->args_.task || generation != thiz->generation_)
-    return;  // Destroyed or Reset() in the meanwhile.
-  PERFETTO_DCHECK_THREAD(thiz->thread_checker_);
-  if (thiz->timer_fd_) {
-#if PERFETTO_BUILDFLAG(PERFETTO_OS_WIN)
-    PERFETTO_FATAL("timerfd for periodic tasks unsupported on Windows");
-#else
-    // If we are using a timerfd there is no need to repeatedly call
-    // PostDelayedTask(). The kernel will wakeup the timer fd periodically. We
-    // just need to read() it.
-    uint64_t ignored = 0;
-    errno = 0;
-    auto rsize = base::Read(*thiz->timer_fd_, &ignored, sizeof(&ignored));
-    if (rsize != sizeof(uint64_t)) {
-      if (errno == EAGAIN)
-        return;  // A spurious wakeup. Rare, but can happen, just ignore.
-      PERFETTO_PLOG("read(timerfd) failed, falling back on PostDelayedTask");
-      thiz->ResetTimerFd();
-    }
-#endif
-  }
-  // The repetition of the if() is to deal with the ResetTimerFd() case above.
-  if (!thiz->timer_fd_) {
-    thiz->PostNextTask();
-  }
-  // Create a copy of the task in the unlikely event that the task ends up
-  // up destroying the PeriodicTask object or calling Reset() on it. That would
-  // cause a reset of the args_.task itself, which would invalidate the task
-  // bind state while we are invoking it.
-  auto task = thiz->args_.task;
-  task();
-}
-
-void PeriodicTask::Reset() {
-  PERFETTO_DCHECK_THREAD(thread_checker_);
-  ++generation_;
-  args_ = Args();
-  PERFETTO_DCHECK(!args_.task);
-  ResetTimerFd();
-}
-
-void PeriodicTask::ResetTimerFd() {
-  if (!timer_fd_)
-    return;
-  task_runner_->RemoveFileDescriptorWatch(*timer_fd_);
-  timer_fd_.reset();
-}
-
-}  // namespace base
-}  // namespace perfetto
-// gen_amalgamated begin source: src/base/pipe.cc
-/*
- * Copyright (C) 2018 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-// gen_amalgamated expanded: #include "perfetto/ext/base/pipe.h"
-
-// gen_amalgamated expanded: #include "perfetto/base/build_config.h"
-
-#include <fcntl.h>  // For O_BINARY (Windows) and F_SETxx (UNIX)
-
-#if PERFETTO_BUILDFLAG(PERFETTO_OS_WIN)
-#include <Windows.h>
-#include <namedpipeapi.h>
-#else
-#include <sys/types.h>
-#include <unistd.h>
-#endif
-
-// gen_amalgamated expanded: #include "perfetto/base/logging.h"
-
-namespace perfetto {
-namespace base {
-
-Pipe::Pipe() = default;
-Pipe::Pipe(Pipe&&) noexcept = default;
-Pipe& Pipe::operator=(Pipe&&) = default;
-
-Pipe Pipe::Create(Flags flags) {
-  PlatformHandle fds[2];
-#if PERFETTO_BUILDFLAG(PERFETTO_OS_WIN)
-  PERFETTO_CHECK(::CreatePipe(&fds[0], &fds[1], /*lpPipeAttributes=*/nullptr,
-                              0 /*default size*/));
-#else
-  PERFETTO_CHECK(pipe(fds) == 0);
-  PERFETTO_CHECK(fcntl(fds[0], F_SETFD, FD_CLOEXEC) == 0);
-  PERFETTO_CHECK(fcntl(fds[1], F_SETFD, FD_CLOEXEC) == 0);
-#endif
-  Pipe p;
-  p.rd.reset(fds[0]);
-  p.wr.reset(fds[1]);
-
-#if !PERFETTO_BUILDFLAG(PERFETTO_OS_WIN)
-  if (flags == kBothNonBlock || flags == kRdNonBlock) {
-    int cur_flags = fcntl(*p.rd, F_GETFL, 0);
-    PERFETTO_CHECK(cur_flags >= 0);
-    PERFETTO_CHECK(fcntl(*p.rd, F_SETFL, cur_flags | O_NONBLOCK) == 0);
-  }
-
-  if (flags == kBothNonBlock || flags == kWrNonBlock) {
-    int cur_flags = fcntl(*p.wr, F_GETFL, 0);
-    PERFETTO_CHECK(cur_flags >= 0);
-    PERFETTO_CHECK(fcntl(*p.wr, F_SETFL, cur_flags | O_NONBLOCK) == 0);
-  }
-#else
-  PERFETTO_CHECK(flags == kBothBlock);
-#endif
-  return p;
-}
-
-}  // namespace base
-}  // namespace perfetto
-// gen_amalgamated begin source: src/base/status.cc
-// gen_amalgamated begin header: include/perfetto/base/status.h
-/*
- * Copyright (C) 2019 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef INCLUDE_PERFETTO_BASE_STATUS_H_
-#define INCLUDE_PERFETTO_BASE_STATUS_H_
-
-#include <string>
-
-// gen_amalgamated expanded: #include "perfetto/base/compiler.h"
-// gen_amalgamated expanded: #include "perfetto/base/export.h"
-// gen_amalgamated expanded: #include "perfetto/base/logging.h"
-
-namespace perfetto {
-namespace base {
-
-// Represents either the success or the failure message of a function.
-// This can used as the return type of functions which would usually return an
-// bool for success or int for errno but also wants to add some string context
-// (ususally for logging).
-class PERFETTO_EXPORT Status {
- public:
-  Status() : ok_(true) {}
-  explicit Status(std::string msg) : ok_(false), message_(std::move(msg)) {
-    PERFETTO_CHECK(!message_.empty());
-  }
-
-  // Copy operations.
-  Status(const Status&) = default;
-  Status& operator=(const Status&) = default;
-
-  // Move operations. The moved-from state is valid but unspecified.
-  Status(Status&&) noexcept = default;
-  Status& operator=(Status&&) = default;
-
-  bool ok() const { return ok_; }
-
-  // When ok() is false this returns the error message. Returns the empty string
-  // otherwise.
-  const std::string& message() const { return message_; }
-  const char* c_message() const { return message_.c_str(); }
-
- private:
-  bool ok_ = false;
-  std::string message_;
-};
-
-// Returns a status object which represents the Ok status.
-inline Status OkStatus() {
-  return Status();
-}
-
-PERFETTO_PRINTF_FORMAT(1, 2) Status ErrStatus(const char* format, ...);
-
-}  // namespace base
-}  // namespace perfetto
-
-#endif  // INCLUDE_PERFETTO_BASE_STATUS_H_
-/*
- * Copyright (C) 2020 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-// gen_amalgamated expanded: #include "perfetto/base/status.h"
-
-#include <stdarg.h>
-
-namespace perfetto {
-namespace base {
-
-Status ErrStatus(const char* format, ...) {
-  char buffer[1024];
-  va_list ap;
-  va_start(ap, format);
-  vsnprintf(buffer, sizeof(buffer), format, ap);
-  va_end(ap);
-  Status status(buffer);
-  return status;
-}
-
-}  // namespace base
-}  // namespace perfetto
-// gen_amalgamated begin source: src/base/string_splitter.cc
-// gen_amalgamated begin header: include/perfetto/ext/base/string_splitter.h
-/*
- * Copyright (C) 2018 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef INCLUDE_PERFETTO_EXT_BASE_STRING_SPLITTER_H_
-#define INCLUDE_PERFETTO_EXT_BASE_STRING_SPLITTER_H_
-
-#include <string>
-
-namespace perfetto {
-namespace base {
-
-// C++ version of strtok(). Splits a string without making copies or any heap
-// allocations. Destructs the original string passed in input.
-// Supports the special case of using \0 as a delimiter.
-// The token returned in output are valid as long as the input string is valid.
-class StringSplitter {
- public:
-  // Can take ownership of the string if passed via std::move(), e.g.:
-  // StringSplitter(std::move(str), '\n');
-  StringSplitter(std::string, char delimiter);
-
-  // Splits a C-string. The input string will be forcefully null-terminated (so
-  // str[size - 1] should be == '\0' or the last char will be truncated).
-  StringSplitter(char* str, size_t size, char delimiter);
-
-  // Splits the current token from an outer StringSplitter instance. This is to
-  // chain splitters as follows:
-  // for (base::StringSplitter lines(x, '\n'); ss.Next();)
-  //   for (base::StringSplitter words(&lines, ' '); words.Next();)
-  StringSplitter(StringSplitter*, char delimiter);
-
-  // Returns true if a token is found (in which case it will be stored in
-  // cur_token()), false if no more tokens are found.
-  bool Next();
-
-  // Returns the current token iff last call to Next() returned true. In this
-  // case it guarantees that the returned string is always null terminated.
-  // In all other cases (before the 1st call to Next() and after Next() returns
-  // false) returns nullptr.
-  char* cur_token() { return cur_; }
-
-  // Returns the length of the current token (excluding the null terminator).
-  size_t cur_token_size() const { return cur_size_; }
-
- private:
-  StringSplitter(const StringSplitter&) = delete;
-  StringSplitter& operator=(const StringSplitter&) = delete;
-  void Initialize(char* str, size_t size);
-
-  std::string str_;
-  char* cur_;
-  size_t cur_size_;
-  char* next_;
-  char* end_;  // STL-style, points one past the last char.
-  const char delimiter_;
-};
-
-}  // namespace base
-}  // namespace perfetto
-
-#endif  // INCLUDE_PERFETTO_EXT_BASE_STRING_SPLITTER_H_
-/*
- * Copyright (C) 2018 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-// gen_amalgamated expanded: #include "perfetto/ext/base/string_splitter.h"
-
-#include <utility>
-
-// gen_amalgamated expanded: #include "perfetto/base/logging.h"
-
-namespace perfetto {
-namespace base {
-
-StringSplitter::StringSplitter(std::string str, char delimiter)
-    : str_(std::move(str)), delimiter_(delimiter) {
-  // It's legal to access str[str.size()] in C++11 (it always returns \0),
-  // hence the +1 (which becomes just size() after the -1 in Initialize()).
-  Initialize(&str_[0], str_.size() + 1);
-}
-
-StringSplitter::StringSplitter(char* str, size_t size, char delimiter)
-    : delimiter_(delimiter) {
-  Initialize(str, size);
-}
-
-StringSplitter::StringSplitter(StringSplitter* outer, char delimiter)
-    : delimiter_(delimiter) {
-  Initialize(outer->cur_token(), outer->cur_token_size() + 1);
-}
-
-void StringSplitter::Initialize(char* str, size_t size) {
-  PERFETTO_DCHECK(!size || str);
-  next_ = str;
-  end_ = str + size;
-  cur_ = nullptr;
-  cur_size_ = 0;
-  if (size)
-    next_[size - 1] = '\0';
-}
-
-bool StringSplitter::Next() {
-  for (; next_ < end_; next_++) {
-    if (*next_ == delimiter_)
-      continue;
-    cur_ = next_;
-    for (;; next_++) {
-      if (*next_ == delimiter_) {
-        cur_size_ = static_cast<size_t>(next_ - cur_);
-        *(next_++) = '\0';
-        break;
-      }
-      if (*next_ == '\0') {
-        cur_size_ = static_cast<size_t>(next_ - cur_);
-        next_ = end_;
-        break;
-      }
-    }
-    if (*cur_)
-      return true;
-    break;
-  }
-  cur_ = nullptr;
-  cur_size_ = 0;
-  return false;
-}
-
-}  // namespace base
-}  // namespace perfetto
-// gen_amalgamated begin source: src/base/string_utils.cc
-// gen_amalgamated begin header: include/perfetto/ext/base/string_utils.h
-// gen_amalgamated begin header: include/perfetto/ext/base/optional.h
-/*
- * Copyright (C) 2018 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef INCLUDE_PERFETTO_EXT_BASE_OPTIONAL_H_
-#define INCLUDE_PERFETTO_EXT_BASE_OPTIONAL_H_
-
-#include <functional>
-#include <type_traits>
-#include <utility>
-
-// gen_amalgamated expanded: #include "perfetto/base/logging.h"
-
-namespace perfetto {
-namespace base {
-
-// Specification:
-// http://en.cppreference.com/w/cpp/utility/optional/in_place_t
-struct in_place_t {};
-
-// Specification:
-// http://en.cppreference.com/w/cpp/utility/optional/nullopt_t
-struct nullopt_t {
-  constexpr explicit nullopt_t(int) {}
-};
-
-// Specification:
-// http://en.cppreference.com/w/cpp/utility/optional/in_place
-constexpr in_place_t in_place = {};
-
-// Specification:
-// http://en.cppreference.com/w/cpp/utility/optional/nullopt
-constexpr nullopt_t nullopt(0);
-
-// Forward declaration, which is referred by following helpers.
-template <typename T>
-class Optional;
-
-namespace internal {
-
-template <typename T, bool = std::is_trivially_destructible<T>::value>
-struct OptionalStorageBase {
-  // Initializing |empty_| here instead of using default member initializing
-  // to avoid errors in g++ 4.8.
-  constexpr OptionalStorageBase() : empty_('\0') {}
-
-  template <class... Args>
-  constexpr explicit OptionalStorageBase(in_place_t, Args&&... args)
-      : is_populated_(true), value_(std::forward<Args>(args)...) {}
-
-  // When T is not trivially destructible we must call its
-  // destructor before deallocating its memory.
-  // Note that this hides the (implicitly declared) move constructor, which
-  // would be used for constexpr move constructor in OptionalStorage<T>.
-  // It is needed iff T is trivially move constructible. However, the current
-  // is_trivially_{copy,move}_constructible implementation requires
-  // is_trivially_destructible (which looks a bug, cf:
-  // https://gcc.gnu.org/bugzilla/show_bug.cgi?id=51452 and
-  // http://cplusplus.github.io/LWG/lwg-active.html#2116), so it is not
-  // necessary for this case at the moment. Please see also the destructor
-  // comment in "is_trivially_destructible = true" specialization below.
-  ~OptionalStorageBase() {
-    if (is_populated_)
-      value_.~T();
-  }
-
-  template <class... Args>
-  void Init(Args&&... args) {
-    PERFETTO_DCHECK(!is_populated_);
-    ::new (&value_) T(std::forward<Args>(args)...);
-    is_populated_ = true;
-  }
-
-  bool is_populated_ = false;
-  union {
-    // |empty_| exists so that the union will always be initialized, even when
-    // it doesn't contain a value. Union members must be initialized for the
-    // constructor to be 'constexpr'.
-    char empty_;
-    T value_;
-  };
-};
-
-template <typename T>
-struct OptionalStorageBase<T, true /* trivially destructible */> {
-  // Initializing |empty_| here instead of using default member initializing
-  // to avoid errors in g++ 4.8.
-  constexpr OptionalStorageBase() : empty_('\0') {}
-
-  template <class... Args>
-  constexpr explicit OptionalStorageBase(in_place_t, Args&&... args)
-      : is_populated_(true), value_(std::forward<Args>(args)...) {}
-
-  // When T is trivially destructible (i.e. its destructor does nothing) there
-  // is no need to call it. Implicitly defined destructor is trivial, because
-  // both members (bool and union containing only variants which are trivially
-  // destructible) are trivially destructible.
-  // Explicitly-defaulted destructor is also trivial, but do not use it here,
-  // because it hides the implicit move constructor. It is needed to implement
-  // constexpr move constructor in OptionalStorage iff T is trivially move
-  // constructible. Note that, if T is trivially move constructible, the move
-  // constructor of OptionalStorageBase<T> is also implicitly defined and it is
-  // trivially move constructor. If T is not trivially move constructible,
-  // "not declaring move constructor without destructor declaration" here means
-  // "delete move constructor", which works because any move constructor of
-  // OptionalStorage will not refer to it in that case.
-
-  template <class... Args>
-  void Init(Args&&... args) {
-    PERFETTO_DCHECK(!is_populated_);
-    ::new (&value_) T(std::forward<Args>(args)...);
-    is_populated_ = true;
-  }
-
-  bool is_populated_ = false;
-  union {
-    // |empty_| exists so that the union will always be initialized, even when
-    // it doesn't contain a value. Union members must be initialized for the
-    // constructor to be 'constexpr'.
-    char empty_;
-    T value_;
-  };
-};
-
-// Implement conditional constexpr copy and move constructors. These are
-// constexpr if is_trivially_{copy,move}_constructible<T>::value is true
-// respectively. If each is true, the corresponding constructor is defined as
-// "= default;", which generates a constexpr constructor (In this case,
-// the condition of constexpr-ness is satisfied because the base class also has
-// compiler generated constexpr {copy,move} constructors). Note that
-// placement-new is prohibited in constexpr.
-template <typename T, bool = std::is_trivially_copy_constructible<T>::value>
-struct OptionalStorage : OptionalStorageBase<T> {
-  // This is no trivially {copy,move} constructible case. Other cases are
-  // defined below as specializations.
-
-  // Accessing the members of template base class requires explicit
-  // declaration.
-  using OptionalStorageBase<T>::is_populated_;
-  using OptionalStorageBase<T>::value_;
-  using OptionalStorageBase<T>::Init;
-
-  // Inherit constructors (specifically, the in_place constructor).
-  using OptionalStorageBase<T>::OptionalStorageBase;
-
-  // User defined constructor deletes the default constructor.
-  // Define it explicitly.
-  OptionalStorage() = default;
-
-  OptionalStorage(const OptionalStorage& other) : OptionalStorageBase<T>() {
-    if (other.is_populated_)
-      Init(other.value_);
-  }
-
-  OptionalStorage(OptionalStorage&& other) noexcept(
-      std::is_nothrow_move_constructible<T>::value) {
-    if (other.is_populated_)
-      Init(std::move(other.value_));
-  }
-};
-
-template <typename T>
-struct OptionalStorage<T, true /* trivially copy constructible */>
-    : OptionalStorageBase<T> {
-  using OptionalStorageBase<T>::is_populated_;
-  using OptionalStorageBase<T>::value_;
-  using OptionalStorageBase<T>::Init;
-  using OptionalStorageBase<T>::OptionalStorageBase;
-
-  OptionalStorage() = default;
-  OptionalStorage(const OptionalStorage& other) = default;
-
-  OptionalStorage(OptionalStorage&& other) noexcept(
-      std::is_nothrow_move_constructible<T>::value) {
-    if (other.is_populated_)
-      Init(std::move(other.value_));
-  }
-};
-
-// Base class to support conditionally usable copy-/move- constructors
-// and assign operators.
-template <typename T>
-class OptionalBase {
-  // This class provides implementation rather than public API, so everything
-  // should be hidden. Often we use composition, but we cannot in this case
-  // because of C++ language restriction.
- protected:
-  constexpr OptionalBase() = default;
-  constexpr OptionalBase(const OptionalBase& other) = default;
-  constexpr OptionalBase(OptionalBase&& other) = default;
-
-  template <class... Args>
-  constexpr explicit OptionalBase(in_place_t, Args&&... args)
-      : storage_(in_place, std::forward<Args>(args)...) {}
-
-  // Implementation of converting constructors.
-  template <typename U>
-  explicit OptionalBase(const OptionalBase<U>& other) {
-    if (other.storage_.is_populated_)
-      storage_.Init(other.storage_.value_);
-  }
-
-  template <typename U>
-  explicit OptionalBase(OptionalBase<U>&& other) {
-    if (other.storage_.is_populated_)
-      storage_.Init(std::move(other.storage_.value_));
-  }
-
-  ~OptionalBase() = default;
-
-  OptionalBase& operator=(const OptionalBase& other) {
-    CopyAssign(other);
-    return *this;
-  }
-
-  OptionalBase& operator=(OptionalBase&& other) noexcept(
-      std::is_nothrow_move_assignable<T>::value&&
-          std::is_nothrow_move_constructible<T>::value) {
-    MoveAssign(std::move(other));
-    return *this;
-  }
-
-  template <typename U>
-  void CopyAssign(const OptionalBase<U>& other) {
-    if (other.storage_.is_populated_)
-      InitOrAssign(other.storage_.value_);
-    else
-      FreeIfNeeded();
-  }
-
-  template <typename U>
-  void MoveAssign(OptionalBase<U>&& other) {
-    if (other.storage_.is_populated_)
-      InitOrAssign(std::move(other.storage_.value_));
-    else
-      FreeIfNeeded();
-  }
-
-  template <typename U>
-  void InitOrAssign(U&& value) {
-    if (storage_.is_populated_)
-      storage_.value_ = std::forward<U>(value);
-    else
-      storage_.Init(std::forward<U>(value));
-  }
-
-  void FreeIfNeeded() {
-    if (!storage_.is_populated_)
-      return;
-    storage_.value_.~T();
-    storage_.is_populated_ = false;
-  }
-
-  // For implementing conversion, allow access to other typed OptionalBase
-  // class.
-  template <typename U>
-  friend class OptionalBase;
-
-  OptionalStorage<T> storage_;
-};
-
-// The following {Copy,Move}{Constructible,Assignable} structs are helpers to
-// implement constructor/assign-operator overloading. Specifically, if T is
-// is not movable but copyable, Optional<T>'s move constructor should not
-// participate in overload resolution. This inheritance trick implements that.
-template <bool is_copy_constructible>
-struct CopyConstructible {};
-
-template <>
-struct CopyConstructible<false> {
-  constexpr CopyConstructible() = default;
-  constexpr CopyConstructible(const CopyConstructible&) = delete;
-  constexpr CopyConstructible(CopyConstructible&&) = default;
-  CopyConstructible& operator=(const CopyConstructible&) = default;
-  CopyConstructible& operator=(CopyConstructible&&) = default;
-};
-
-template <bool is_move_constructible>
-struct MoveConstructible {};
-
-template <>
-struct MoveConstructible<false> {
-  constexpr MoveConstructible() = default;
-  constexpr MoveConstructible(const MoveConstructible&) = default;
-  constexpr MoveConstructible(MoveConstructible&&) = delete;
-  MoveConstructible& operator=(const MoveConstructible&) = default;
-  MoveConstructible& operator=(MoveConstructible&&) = default;
-};
-
-template <bool is_copy_assignable>
-struct CopyAssignable {};
-
-template <>
-struct CopyAssignable<false> {
-  constexpr CopyAssignable() = default;
-  constexpr CopyAssignable(const CopyAssignable&) = default;
-  constexpr CopyAssignable(CopyAssignable&&) = default;
-  CopyAssignable& operator=(const CopyAssignable&) = delete;
-  CopyAssignable& operator=(CopyAssignable&&) = default;
-};
-
-template <bool is_move_assignable>
-struct MoveAssignable {};
-
-template <>
-struct MoveAssignable<false> {
-  constexpr MoveAssignable() = default;
-  constexpr MoveAssignable(const MoveAssignable&) = default;
-  constexpr MoveAssignable(MoveAssignable&&) = default;
-  MoveAssignable& operator=(const MoveAssignable&) = default;
-  MoveAssignable& operator=(MoveAssignable&&) = delete;
-};
-
-// Helper to conditionally enable converting constructors and assign operators.
-template <typename T, typename U>
-struct IsConvertibleFromOptional
-    : std::integral_constant<
-          bool,
-          std::is_constructible<T, Optional<U>&>::value ||
-              std::is_constructible<T, const Optional<U>&>::value ||
-              std::is_constructible<T, Optional<U>&&>::value ||
-              std::is_constructible<T, const Optional<U>&&>::value ||
-              std::is_convertible<Optional<U>&, T>::value ||
-              std::is_convertible<const Optional<U>&, T>::value ||
-              std::is_convertible<Optional<U>&&, T>::value ||
-              std::is_convertible<const Optional<U>&&, T>::value> {};
-
-template <typename T, typename U>
-struct IsAssignableFromOptional
-    : std::integral_constant<
-          bool,
-          IsConvertibleFromOptional<T, U>::value ||
-              std::is_assignable<T&, Optional<U>&>::value ||
-              std::is_assignable<T&, const Optional<U>&>::value ||
-              std::is_assignable<T&, Optional<U>&&>::value ||
-              std::is_assignable<T&, const Optional<U>&&>::value> {};
-
-// Forward compatibility for C++17.
-// Introduce one more deeper nested namespace to avoid leaking using std::swap.
-namespace swappable_impl {
-using std::swap;
-
-struct IsSwappableImpl {
-  // Tests if swap can be called. Check<T&>(0) returns true_type iff swap is
-  // available for T. Otherwise, Check's overload resolution falls back to
-  // Check(...) declared below thanks to SFINAE, so returns false_type.
-  template <typename T>
-  static auto Check(int)
-      -> decltype(swap(std::declval<T>(), std::declval<T>()), std::true_type());
-
-  template <typename T>
-  static std::false_type Check(...);
-};
-}  // namespace swappable_impl
-
-template <typename T>
-struct IsSwappable : decltype(swappable_impl::IsSwappableImpl::Check<T&>(0)) {};
-
-// Forward compatibility for C++20.
-template <typename T>
-using RemoveCvRefT =
-    typename std::remove_cv<typename std::remove_reference<T>::type>::type;
-
-}  // namespace internal
-
-// On Windows, by default, empty-base class optimization does not work,
-// which means even if the base class is empty struct, it still consumes one
-// byte for its body. __declspec(empty_bases) enables the optimization.
-// cf)
-// https://blogs.msdn.microsoft.com/vcblog/2016/03/30/optimizing-the-layout-of-empty-base-classes-in-vs2015-update-2-3/
-#if PERFETTO_BUILDFLAG(PERFETTO_OS_WIN) && \
-    !PERFETTO_BUILDFLAG(PERFETTO_COMPILER_GCC)
-#define OPTIONAL_DECLSPEC_EMPTY_BASES __declspec(empty_bases)
-#else
-#define OPTIONAL_DECLSPEC_EMPTY_BASES
-#endif
-
-// base::Optional is a Chromium version of the C++17 optional class:
-// std::optional documentation:
-// http://en.cppreference.com/w/cpp/utility/optional
-// Chromium documentation:
-// https://chromium.googlesource.com/chromium/src/+/master/docs/optional.md
-//
-// These are the differences between the specification and the implementation:
-// - Constructors do not use 'constexpr' as it is a C++14 extension.
-// - 'constexpr' might be missing in some places for reasons specified locally.
-// - No exceptions are thrown, because they are banned from Chromium.
-//   Marked noexcept for only move constructor and move assign operators.
-// - All the non-members are in the 'base' namespace instead of 'std'.
-//
-// Note that T cannot have a constructor T(Optional<T>) etc. Optional<T>
-// PERFETTO_CHECKs T's constructor (specifically via IsConvertibleFromOptional),
-// and in the PERFETTO_CHECK whether T can be constructible from Optional<T>,
-// which is recursive so it does not work. As of Feb 2018, std::optional C++17
-// implementation in both clang and gcc has same limitation. MSVC SFINAE looks
-// to have different behavior, but anyway it reports an error, too.
-//
-// This file is a modified version of optional.h from Chromium at revision
-// 5e71bd454e60511c1293c0c686544aaa76094424. The changes remove C++14/C++17
-// specific code and replace with C++11 counterparts.
-template <typename T>
-class OPTIONAL_DECLSPEC_EMPTY_BASES Optional
-    : public internal::OptionalBase<T>,
-      public internal::CopyConstructible<std::is_copy_constructible<T>::value>,
-      public internal::MoveConstructible<std::is_move_constructible<T>::value>,
-      public internal::CopyAssignable<std::is_copy_constructible<T>::value &&
-                                      std::is_copy_assignable<T>::value>,
-      public internal::MoveAssignable<std::is_move_constructible<T>::value &&
-                                      std::is_move_assignable<T>::value> {
- public:
-#undef OPTIONAL_DECLSPEC_EMPTY_BASES
-  using value_type = T;
-
-  // Defer default/copy/move constructor implementation to OptionalBase.
-  constexpr Optional() = default;
-  constexpr Optional(const Optional& other) = default;
-  constexpr Optional(Optional&& other) noexcept(
-      std::is_nothrow_move_constructible<T>::value) = default;
-
-  constexpr Optional(nullopt_t) {}  // NOLINT(runtime/explicit)
-
-  // Converting copy constructor. "explicit" only if
-  // std::is_convertible<const U&, T>::value is false. It is implemented by
-  // declaring two almost same constructors, but that condition in enable_if_t
-  // is different, so that either one is chosen, thanks to SFINAE.
-  template <typename U,
-            typename std::enable_if<
-                std::is_constructible<T, const U&>::value &&
-                    !internal::IsConvertibleFromOptional<T, U>::value &&
-                    std::is_convertible<const U&, T>::value,
-                bool>::type = false>
-  Optional(const Optional<U>& other) : internal::OptionalBase<T>(other) {}
-
-  template <typename U,
-            typename std::enable_if<
-                std::is_constructible<T, const U&>::value &&
-                    !internal::IsConvertibleFromOptional<T, U>::value &&
-                    !std::is_convertible<const U&, T>::value,
-                bool>::type = false>
-  explicit Optional(const Optional<U>& other)
-      : internal::OptionalBase<T>(other) {}
-
-  // Converting move constructor. Similar to converting copy constructor,
-  // declaring two (explicit and non-explicit) constructors.
-  template <typename U,
-            typename std::enable_if<
-                std::is_constructible<T, U&&>::value &&
-                    !internal::IsConvertibleFromOptional<T, U>::value &&
-                    std::is_convertible<U&&, T>::value,
-                bool>::type = false>
-  Optional(Optional<U>&& other) : internal::OptionalBase<T>(std::move(other)) {}
-
-  template <typename U,
-            typename std::enable_if<
-                std::is_constructible<T, U&&>::value &&
-                    !internal::IsConvertibleFromOptional<T, U>::value &&
-                    !std::is_convertible<U&&, T>::value,
-                bool>::type = false>
-  explicit Optional(Optional<U>&& other)
-      : internal::OptionalBase<T>(std::move(other)) {}
-
-  template <class... Args>
-  constexpr explicit Optional(in_place_t, Args&&... args)
-      : internal::OptionalBase<T>(in_place, std::forward<Args>(args)...) {}
-
-  template <class U,
-            class... Args,
-            class = typename std::enable_if<
-                std::is_constructible<value_type,
-                                      std::initializer_list<U>&,
-                                      Args...>::value>::type>
-  constexpr explicit Optional(in_place_t,
-                              std::initializer_list<U> il,
-                              Args&&... args)
-      : internal::OptionalBase<T>(in_place, il, std::forward<Args>(args)...) {}
-
-  // Forward value constructor. Similar to converting constructors,
-  // conditionally explicit.
-  template <
-      typename U = value_type,
-      typename std::enable_if<
-          std::is_constructible<T, U&&>::value &&
-              !std::is_same<internal::RemoveCvRefT<U>, in_place_t>::value &&
-              !std::is_same<internal::RemoveCvRefT<U>, Optional<T>>::value &&
-              std::is_convertible<U&&, T>::value,
-          bool>::type = false>
-  constexpr Optional(U&& value)
-      : internal::OptionalBase<T>(in_place, std::forward<U>(value)) {}
-
-  template <
-      typename U = value_type,
-      typename std::enable_if<
-          std::is_constructible<T, U&&>::value &&
-              !std::is_same<internal::RemoveCvRefT<U>, in_place_t>::value &&
-              !std::is_same<internal::RemoveCvRefT<U>, Optional<T>>::value &&
-              !std::is_convertible<U&&, T>::value,
-          bool>::type = false>
-  constexpr explicit Optional(U&& value)
-      : internal::OptionalBase<T>(in_place, std::forward<U>(value)) {}
-
-  ~Optional() = default;
-
-  // Defer copy-/move- assign operator implementation to OptionalBase.
-  Optional& operator=(const Optional& other) = default;
-  Optional& operator=(Optional&& other) noexcept(
-      std::is_nothrow_move_assignable<T>::value&&
-          std::is_nothrow_move_constructible<T>::value) = default;
-
-  Optional& operator=(nullopt_t) {
-    FreeIfNeeded();
-    return *this;
-  }
-
-  // Perfect-forwarded assignment.
-  template <typename U>
-  typename std::enable_if<
-      !std::is_same<internal::RemoveCvRefT<U>, Optional<T>>::value &&
-          std::is_constructible<T, U>::value &&
-          std::is_assignable<T&, U>::value &&
-          (!std::is_scalar<T>::value ||
-           !std::is_same<typename std::decay<U>::type, T>::value),
-      Optional&>::type
-  operator=(U&& value) {
-    InitOrAssign(std::forward<U>(value));
-    return *this;
-  }
-
-  // Copy assign the state of other.
-  template <typename U>
-  typename std::enable_if<!internal::IsAssignableFromOptional<T, U>::value &&
-                              std::is_constructible<T, const U&>::value &&
-                              std::is_assignable<T&, const U&>::value,
-                          Optional&>::type
-  operator=(const Optional<U>& other) {
-    CopyAssign(other);
-    return *this;
-  }
-
-  // Move assign the state of other.
-  template <typename U>
-  typename std::enable_if<!internal::IsAssignableFromOptional<T, U>::value &&
-                              std::is_constructible<T, U>::value &&
-                              std::is_assignable<T&, U>::value,
-                          Optional&>::type
-  operator=(Optional<U>&& other) {
-    MoveAssign(std::move(other));
-    return *this;
-  }
-
-  const T* operator->() const {
-    PERFETTO_DCHECK(storage_.is_populated_);
-    return &storage_.value_;
-  }
-
-  T* operator->() {
-    PERFETTO_DCHECK(storage_.is_populated_);
-    return &storage_.value_;
-  }
-
-  const T& operator*() const& {
-    PERFETTO_DCHECK(storage_.is_populated_);
-    return storage_.value_;
-  }
-
-  T& operator*() & {
-    PERFETTO_DCHECK(storage_.is_populated_);
-    return storage_.value_;
-  }
-
-  const T&& operator*() const&& {
-    PERFETTO_DCHECK(storage_.is_populated_);
-    return std::move(storage_.value_);
-  }
-
-  T&& operator*() && {
-    PERFETTO_DCHECK(storage_.is_populated_);
-    return std::move(storage_.value_);
-  }
-
-  constexpr explicit operator bool() const { return storage_.is_populated_; }
-
-  constexpr bool has_value() const { return storage_.is_populated_; }
-
-  T& value() & {
-    PERFETTO_CHECK(storage_.is_populated_);
-    return storage_.value_;
-  }
-
-  const T& value() const& {
-    PERFETTO_CHECK(storage_.is_populated_);
-    return storage_.value_;
-  }
-
-  T&& value() && {
-    PERFETTO_CHECK(storage_.is_populated_);
-    return std::move(storage_.value_);
-  }
-
-  const T&& value() const&& {
-    PERFETTO_CHECK(storage_.is_populated_);
-    return std::move(storage_.value_);
-  }
-
-  template <class U>
-  constexpr T value_or(U&& default_value) const& {
-    static_assert(std::is_convertible<U, T>::value,
-                  "U must be convertible to T");
-    return storage_.is_populated_
-               ? storage_.value_
-               : static_cast<T>(std::forward<U>(default_value));
-  }
-
-  template <class U>
-  T value_or(U&& default_value) && {
-    static_assert(std::is_convertible<U, T>::value,
-                  "U must be convertible to T");
-    return storage_.is_populated_
-               ? std::move(storage_.value_)
-               : static_cast<T>(std::forward<U>(default_value));
-  }
-
-  void swap(Optional& other) {
-    if (!storage_.is_populated_ && !other.storage_.is_populated_)
-      return;
-
-    if (storage_.is_populated_ != other.storage_.is_populated_) {
-      if (storage_.is_populated_) {
-        other.storage_.Init(std::move(storage_.value_));
-        FreeIfNeeded();
-      } else {
-        storage_.Init(std::move(other.storage_.value_));
-        other.FreeIfNeeded();
-      }
-      return;
-    }
-
-    PERFETTO_DCHECK(storage_.is_populated_ && other.storage_.is_populated_);
-    using std::swap;
-    swap(**this, *other);
-  }
-
-  void reset() { FreeIfNeeded(); }
-
-  template <class... Args>
-  T& emplace(Args&&... args) {
-    FreeIfNeeded();
-    storage_.Init(std::forward<Args>(args)...);
-    return storage_.value_;
-  }
-
-  template <class U, class... Args>
-  typename std::enable_if<
-      std::is_constructible<T, std::initializer_list<U>&, Args&&...>::value,
-      T&>::type
-  emplace(std::initializer_list<U> il, Args&&... args) {
-    FreeIfNeeded();
-    storage_.Init(il, std::forward<Args>(args)...);
-    return storage_.value_;
-  }
-
- private:
-  // Accessing template base class's protected member needs explicit
-  // declaration to do so.
-  using internal::OptionalBase<T>::CopyAssign;
-  using internal::OptionalBase<T>::FreeIfNeeded;
-  using internal::OptionalBase<T>::InitOrAssign;
-  using internal::OptionalBase<T>::MoveAssign;
-  using internal::OptionalBase<T>::storage_;
-};
-
-// Here after defines comparation operators. The definition follows
-// http://en.cppreference.com/w/cpp/utility/optional/operator_cmp
-// while bool() casting is replaced by has_value() to meet the chromium
-// style guide.
-template <class T, class U>
-bool operator==(const Optional<T>& lhs, const Optional<U>& rhs) {
-  if (lhs.has_value() != rhs.has_value())
-    return false;
-  if (!lhs.has_value())
-    return true;
-  return *lhs == *rhs;
-}
-
-template <class T, class U>
-bool operator!=(const Optional<T>& lhs, const Optional<U>& rhs) {
-  if (lhs.has_value() != rhs.has_value())
-    return true;
-  if (!lhs.has_value())
-    return false;
-  return *lhs != *rhs;
-}
-
-template <class T, class U>
-bool operator<(const Optional<T>& lhs, const Optional<U>& rhs) {
-  if (!rhs.has_value())
-    return false;
-  if (!lhs.has_value())
-    return true;
-  return *lhs < *rhs;
-}
-
-template <class T, class U>
-bool operator<=(const Optional<T>& lhs, const Optional<U>& rhs) {
-  if (!lhs.has_value())
-    return true;
-  if (!rhs.has_value())
-    return false;
-  return *lhs <= *rhs;
-}
-
-template <class T, class U>
-bool operator>(const Optional<T>& lhs, const Optional<U>& rhs) {
-  if (!lhs.has_value())
-    return false;
-  if (!rhs.has_value())
-    return true;
-  return *lhs > *rhs;
-}
-
-template <class T, class U>
-bool operator>=(const Optional<T>& lhs, const Optional<U>& rhs) {
-  if (!rhs.has_value())
-    return true;
-  if (!lhs.has_value())
-    return false;
-  return *lhs >= *rhs;
-}
-
-template <class T>
-constexpr bool operator==(const Optional<T>& opt, nullopt_t) {
-  return !opt;
-}
-
-template <class T>
-constexpr bool operator==(nullopt_t, const Optional<T>& opt) {
-  return !opt;
-}
-
-template <class T>
-constexpr bool operator!=(const Optional<T>& opt, nullopt_t) {
-  return opt.has_value();
-}
-
-template <class T>
-constexpr bool operator!=(nullopt_t, const Optional<T>& opt) {
-  return opt.has_value();
-}
-
-template <class T>
-constexpr bool operator<(const Optional<T>&, nullopt_t) {
-  return false;
-}
-
-template <class T>
-constexpr bool operator<(nullopt_t, const Optional<T>& opt) {
-  return opt.has_value();
-}
-
-template <class T>
-constexpr bool operator<=(const Optional<T>& opt, nullopt_t) {
-  return !opt;
-}
-
-template <class T>
-constexpr bool operator<=(nullopt_t, const Optional<T>&) {
-  return true;
-}
-
-template <class T>
-constexpr bool operator>(const Optional<T>& opt, nullopt_t) {
-  return opt.has_value();
-}
-
-template <class T>
-constexpr bool operator>(nullopt_t, const Optional<T>&) {
-  return false;
-}
-
-template <class T>
-constexpr bool operator>=(const Optional<T>&, nullopt_t) {
-  return true;
-}
-
-template <class T>
-constexpr bool operator>=(nullopt_t, const Optional<T>& opt) {
-  return !opt;
-}
-
-template <class T, class U>
-constexpr bool operator==(const Optional<T>& opt, const U& value) {
-  return opt.has_value() ? *opt == value : false;
-}
-
-template <class T, class U>
-constexpr bool operator==(const U& value, const Optional<T>& opt) {
-  return opt.has_value() ? value == *opt : false;
-}
-
-template <class T, class U>
-constexpr bool operator!=(const Optional<T>& opt, const U& value) {
-  return opt.has_value() ? *opt != value : true;
-}
-
-template <class T, class U>
-constexpr bool operator!=(const U& value, const Optional<T>& opt) {
-  return opt.has_value() ? value != *opt : true;
-}
-
-template <class T, class U>
-constexpr bool operator<(const Optional<T>& opt, const U& value) {
-  return opt.has_value() ? *opt < value : true;
-}
-
-template <class T, class U>
-constexpr bool operator<(const U& value, const Optional<T>& opt) {
-  return opt.has_value() ? value < *opt : false;
-}
-
-template <class T, class U>
-constexpr bool operator<=(const Optional<T>& opt, const U& value) {
-  return opt.has_value() ? *opt <= value : true;
-}
-
-template <class T, class U>
-constexpr bool operator<=(const U& value, const Optional<T>& opt) {
-  return opt.has_value() ? value <= *opt : false;
-}
-
-template <class T, class U>
-constexpr bool operator>(const Optional<T>& opt, const U& value) {
-  return opt.has_value() ? *opt > value : false;
-}
-
-template <class T, class U>
-constexpr bool operator>(const U& value, const Optional<T>& opt) {
-  return opt.has_value() ? value > *opt : true;
-}
-
-template <class T, class U>
-constexpr bool operator>=(const Optional<T>& opt, const U& value) {
-  return opt.has_value() ? *opt >= value : false;
-}
-
-template <class T, class U>
-constexpr bool operator>=(const U& value, const Optional<T>& opt) {
-  return opt.has_value() ? value >= *opt : true;
-}
-
-template <class T>
-constexpr Optional<typename std::decay<T>::type> make_optional(T&& value) {
-  return Optional<typename std::decay<T>::type>(std::forward<T>(value));
-}
-
-template <class T, class... Args>
-constexpr Optional<T> make_optional(Args&&... args) {
-  return Optional<T>(in_place, std::forward<Args>(args)...);
-}
-
-template <class T, class U, class... Args>
-constexpr Optional<T> make_optional(std::initializer_list<U> il,
-                                    Args&&... args) {
-  return Optional<T>(in_place, il, std::forward<Args>(args)...);
-}
-
-// Partial specialization for a function template is not allowed. Also, it is
-// not allowed to add overload function to std namespace, while it is allowed
-// to specialize the template in std. Thus, swap() (kind of) overloading is
-// defined in base namespace, instead.
-template <class T>
-typename std::enable_if<std::is_move_constructible<T>::value &&
-                        internal::IsSwappable<T>::value>::type
-swap(Optional<T>& lhs, Optional<T>& rhs) {
-  lhs.swap(rhs);
-}
-
-}  // namespace base
-}  // namespace perfetto
-
-template <class T>
-struct std::hash<perfetto::base::Optional<T>> {
-  size_t operator()(const perfetto::base::Optional<T>& opt) const {
-    return opt == perfetto::base::nullopt ? 0 : std::hash<T>()(*opt);
-  }
-};
-
-#endif  // INCLUDE_PERFETTO_EXT_BASE_OPTIONAL_H_
-// gen_amalgamated begin header: include/perfetto/ext/base/string_view.h
-// gen_amalgamated begin header: include/perfetto/ext/base/hash.h
-/*
- * Copyright (C) 2019 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef INCLUDE_PERFETTO_EXT_BASE_HASH_H_
-#define INCLUDE_PERFETTO_EXT_BASE_HASH_H_
-
-#include <stddef.h>
-#include <stdint.h>
-#include <type_traits>
-
-namespace perfetto {
-namespace base {
-
-// A helper class which computes a 64-bit hash of the input data.
-// The algorithm used is FNV-1a as it is fast and easy to implement and has
-// relatively few collisions.
-// WARNING: This hash function should not be used for any cryptographic purpose.
-class Hash {
- public:
-  // Creates an empty hash object
-  Hash() {}
-
-  // Hashes a numeric value.
-  template <
-      typename T,
-      typename std::enable_if<std::is_arithmetic<T>::value, bool>::type = true>
-  void Update(T data) {
-    Update(reinterpret_cast<const char*>(&data), sizeof(data));
-  }
-
-  // Hashes a byte array.
-  void Update(const char* data, size_t size) {
-    for (size_t i = 0; i < size; i++) {
-      result_ ^= static_cast<uint8_t>(data[i]);
-      result_ *= kFnv1a64Prime;
-    }
-  }
-
-  uint64_t digest() { return result_; }
-
- private:
-  static constexpr uint64_t kFnv1a64OffsetBasis = 0xcbf29ce484222325;
-  static constexpr uint64_t kFnv1a64Prime = 0x100000001b3;
-
-  uint64_t result_ = kFnv1a64OffsetBasis;
-};
-
-}  // namespace base
-}  // namespace perfetto
-
-#endif  // INCLUDE_PERFETTO_EXT_BASE_HASH_H_
-/*
- * Copyright (C) 2018 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef INCLUDE_PERFETTO_EXT_BASE_STRING_VIEW_H_
-#define INCLUDE_PERFETTO_EXT_BASE_STRING_VIEW_H_
-
-#include <string.h>
-
-#include <algorithm>
-#include <string>
-
-// gen_amalgamated expanded: #include "perfetto/base/build_config.h"
-// gen_amalgamated expanded: #include "perfetto/base/logging.h"
-// gen_amalgamated expanded: #include "perfetto/ext/base/hash.h"
-
-namespace perfetto {
-namespace base {
-
-// A string-like object that refers to a non-owned piece of memory.
-// Strings are internally NOT null terminated.
-class StringView {
- public:
-  static constexpr size_t npos = static_cast<size_t>(-1);
-
-  StringView() : data_(nullptr), size_(0) {}
-  StringView(const StringView&) = default;
-  StringView& operator=(const StringView&) = default;
-  StringView(const char* data, size_t size) : data_(data), size_(size) {
-    PERFETTO_DCHECK(size == 0 || data != nullptr);
-  }
-
-  // Allow implicit conversion from any class that has a |data| and |size| field
-  // and has the kConvertibleToStringView trait (e.g., protozero::ConstChars).
-  template <typename T, typename = std::enable_if<T::kConvertibleToStringView>>
-  StringView(const T& x) : StringView(x.data, x.size) {
-    PERFETTO_DCHECK(x.size == 0 || x.data != nullptr);
-  }
-
-  // Creates a StringView from a null-terminated C string.
-  // Deliberately not "explicit".
-  StringView(const char* cstr) : data_(cstr), size_(strlen(cstr)) {
-    PERFETTO_DCHECK(cstr != nullptr);
-  }
-
-  // This instead has to be explicit, as creating a StringView out of a
-  // std::string can be subtle.
-  explicit StringView(const std::string& str)
-      : data_(str.data()), size_(str.size()) {}
-
-  bool empty() const { return size_ == 0; }
-  size_t size() const { return size_; }
-  const char* data() const { return data_; }
-  const char* begin() const { return data_; }
-  const char* end() const { return data_ + size_; }
-
-  char at(size_t pos) const {
-    PERFETTO_DCHECK(pos < size_);
-    return data_[pos];
-  }
-
-  size_t find(char c, size_t start_pos = 0) const {
-    for (size_t i = start_pos; i < size_; ++i) {
-      if (data_[i] == c)
-        return i;
-    }
-    return npos;
-  }
-
-  size_t find(const StringView& str, size_t start_pos = 0) const {
-    if (start_pos > size())
-      return npos;
-    auto it = std::search(begin() + start_pos, end(), str.begin(), str.end());
-    size_t pos = static_cast<size_t>(it - begin());
-    return pos + str.size() <= size() ? pos : npos;
-  }
-
-  size_t find(const char* str, size_t start_pos = 0) const {
-    return find(StringView(str), start_pos);
-  }
-
-  size_t rfind(char c) const {
-    for (size_t i = size_; i > 0; --i) {
-      if (data_[i - 1] == c)
-        return i - 1;
-    }
-    return npos;
-  }
-
-  StringView substr(size_t pos, size_t count = npos) const {
-    if (pos >= size_)
-      return StringView("", 0);
-    size_t rcount = std::min(count, size_ - pos);
-    return StringView(data_ + pos, rcount);
-  }
-
-  bool CaseInsensitiveEq(const StringView& other) {
-    if (size() != other.size())
-      return false;
-    if (size() == 0)
-      return true;
-#if PERFETTO_BUILDFLAG(PERFETTO_OS_WIN)
-    return _strnicmp(data(), other.data(), size()) == 0;
-#else
-    return strncasecmp(data(), other.data(), size()) == 0;
-#endif
-  }
-
-  std::string ToStdString() const {
-    return data_ == nullptr ? "" : std::string(data_, size_);
-  }
-
-  uint64_t Hash() const {
-    base::Hash hasher;
-    hasher.Update(data_, size_);
-    return hasher.digest();
-  }
-
- private:
-  const char* data_ = nullptr;
-  size_t size_ = 0;
-};
-
-inline bool operator==(const StringView& x, const StringView& y) {
-  if (x.size() != y.size())
-    return false;
-  if (x.size() == 0)
-    return true;
-  return memcmp(x.data(), y.data(), x.size()) == 0;
-}
-
-inline bool operator!=(const StringView& x, const StringView& y) {
-  return !(x == y);
-}
-
-inline bool operator<(const StringView& x, const StringView& y) {
-  auto size = std::min(x.size(), y.size());
-  if (size == 0)
-    return x.size() < y.size();
-  int result = memcmp(x.data(), y.data(), size);
-  return result < 0 || (result == 0 && x.size() < y.size());
-}
-
-inline bool operator>=(const StringView& x, const StringView& y) {
-  return !(x < y);
-}
-
-inline bool operator>(const StringView& x, const StringView& y) {
-  return y < x;
-}
-
-inline bool operator<=(const StringView& x, const StringView& y) {
-  return !(y < x);
-}
-
-}  // namespace base
-}  // namespace perfetto
-
-template <>
-struct std::hash<::perfetto::base::StringView> {
-  size_t operator()(const ::perfetto::base::StringView& sv) const {
-    return static_cast<size_t>(sv.Hash());
-  }
-};
-
-#endif  // INCLUDE_PERFETTO_EXT_BASE_STRING_VIEW_H_
-/*
- * Copyright (C) 2018 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef INCLUDE_PERFETTO_EXT_BASE_STRING_UTILS_H_
-#define INCLUDE_PERFETTO_EXT_BASE_STRING_UTILS_H_
-
-#include <string>
-#include <vector>
-
-#include <inttypes.h>
-#include <stdlib.h>
-
-// gen_amalgamated expanded: #include "perfetto/ext/base/optional.h"
-// gen_amalgamated expanded: #include "perfetto/ext/base/string_view.h"
-
-namespace perfetto {
-namespace base {
-
-std::string QuoteAndEscapeControlCodes(const std::string& raw);
-
-inline char Lowercase(char c) {
-  return ('A' <= c && c <= 'Z') ? static_cast<char>(c - ('A' - 'a')) : c;
-}
-
-inline char Uppercase(char c) {
-  return ('a' <= c && c <= 'z') ? static_cast<char>(c + ('A' - 'a')) : c;
-}
-
-inline Optional<uint32_t> CStringToUInt32(const char* s, int base = 10) {
-  char* endptr = nullptr;
-  auto value = static_cast<uint32_t>(strtoul(s, &endptr, base));
-  return (*s && !*endptr) ? base::make_optional(value) : base::nullopt;
-}
-
-inline Optional<int32_t> CStringToInt32(const char* s, int base = 10) {
-  char* endptr = nullptr;
-  auto value = static_cast<int32_t>(strtol(s, &endptr, base));
-  return (*s && !*endptr) ? base::make_optional(value) : base::nullopt;
-}
-
-// Note: it saturates to 7fffffffffffffff if parsing a hex number >= 0x8000...
-inline Optional<int64_t> CStringToInt64(const char* s, int base = 10) {
-  char* endptr = nullptr;
-  auto value = static_cast<int64_t>(strtoll(s, &endptr, base));
-  return (*s && !*endptr) ? base::make_optional(value) : base::nullopt;
-}
-
-inline Optional<uint64_t> CStringToUInt64(const char* s, int base = 10) {
-  char* endptr = nullptr;
-  auto value = static_cast<uint64_t>(strtoull(s, &endptr, base));
-  return (*s && !*endptr) ? base::make_optional(value) : base::nullopt;
-}
-
-double StrToD(const char* nptr, char** endptr);
-
-inline Optional<double> CStringToDouble(const char* s) {
-  char* endptr = nullptr;
-  double value = StrToD(s, &endptr);
-  Optional<double> result(base::nullopt);
-  if (*s != '\0' && *endptr == '\0')
-    result = value;
-  return result;
-}
-
-inline Optional<uint32_t> StringToUInt32(const std::string& s, int base = 10) {
-  return CStringToUInt32(s.c_str(), base);
-}
-
-inline Optional<int32_t> StringToInt32(const std::string& s, int base = 10) {
-  return CStringToInt32(s.c_str(), base);
-}
-
-inline Optional<uint64_t> StringToUInt64(const std::string& s, int base = 10) {
-  return CStringToUInt64(s.c_str(), base);
-}
-
-inline Optional<int64_t> StringToInt64(const std::string& s, int base = 10) {
-  return CStringToInt64(s.c_str(), base);
-}
-
-inline Optional<double> StringToDouble(const std::string& s) {
-  return CStringToDouble(s.c_str());
-}
-
-bool StartsWith(const std::string& str, const std::string& prefix);
-bool EndsWith(const std::string& str, const std::string& suffix);
-bool Contains(const std::string& haystack, const std::string& needle);
-bool Contains(const std::string& haystack, char needle);
-size_t Find(const StringView& needle, const StringView& haystack);
-bool CaseInsensitiveEqual(const std::string& first, const std::string& second);
-std::string Join(const std::vector<std::string>& parts,
-                 const std::string& delim);
-std::vector<std::string> SplitString(const std::string& text,
-                                     const std::string& delimiter);
-std::string StripPrefix(const std::string& str, const std::string& prefix);
-std::string StripSuffix(const std::string& str, const std::string& suffix);
-std::string ToLower(const std::string& str);
-std::string ToUpper(const std::string& str);
-std::string StripChars(const std::string& str,
-                       const std::string& chars,
-                       char replacement);
-std::string ToHex(const char* data, size_t size);
-inline std::string ToHex(const std::string& s) {
-  return ToHex(s.c_str(), s.size());
-}
-std::string IntToHexString(uint32_t number);
-std::string Uint64ToHexString(uint64_t number);
-std::string Uint64ToHexStringNoPrefix(uint64_t number);
-std::string ReplaceAll(std::string str,
-                       const std::string& to_replace,
-                       const std::string& replacement);
-std::string TrimLeading(const std::string& str);
-std::string Base64Encode(const void* raw, size_t size);
-
-}  // namespace base
-}  // namespace perfetto
-
-#endif  // INCLUDE_PERFETTO_EXT_BASE_STRING_UTILS_H_
-/*
- * Copyright (C) 2018 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-// gen_amalgamated expanded: #include "perfetto/ext/base/string_utils.h"
-
-#include <inttypes.h>
-#include <locale.h>
-#include <string.h>
-
-#if PERFETTO_BUILDFLAG(PERFETTO_OS_APPLE)
-#include <xlocale.h>
-#endif
-
-#include <algorithm>
-
-// gen_amalgamated expanded: #include "perfetto/base/logging.h"
-
-namespace perfetto {
-namespace base {
-namespace {
-constexpr char kBase64Table[] =
-    "ABCDEFGHIJKLMNOPQRSTUVWXYZ"
-    "abcdefghijklmnopqrstuvwxyz0123456789+/";
-}
-
-// Locale-independant as possible version of strtod.
-double StrToD(const char* nptr, char** endptr) {
-#if PERFETTO_BUILDFLAG(PERFETTO_OS_ANDROID) || \
-    PERFETTO_BUILDFLAG(PERFETTO_OS_LINUX) ||   \
-    PERFETTO_BUILDFLAG(PERFETTO_OS_APPLE)
-  static auto c_locale = newlocale(LC_ALL, "C", nullptr);
-  return strtod_l(nptr, endptr, c_locale);
-#else
-  return strtod(nptr, endptr);
-#endif
-}
-
-std::string QuoteAndEscapeControlCodes(const std::string& raw) {
-  std::string ret;
-  for (auto it = raw.cbegin(); it != raw.cend(); it++) {
-    switch (*it) {
-      case '\\':
-        ret += "\\\\";
-        break;
-      case '"':
-        ret += "\\\"";
-        break;
-      case '/':
-        ret += "\\/";
-        break;
-      case '\b':
-        ret += "\\b";
-        break;
-      case '\f':
-        ret += "\\f";
-        break;
-      case '\n':
-        ret += "\\n";
-        break;
-      case '\r':
-        ret += "\\r";
-        break;
-      case '\t':
-        ret += "\\t";
-        break;
-      default:
-        ret += *it;
-        break;
-    }
-  }
-  return '"' + ret + '"';
-}
-
-bool StartsWith(const std::string& str, const std::string& prefix) {
-  return str.compare(0, prefix.length(), prefix) == 0;
-}
-
-bool EndsWith(const std::string& str, const std::string& suffix) {
-  if (suffix.size() > str.size())
-    return false;
-  return str.compare(str.size() - suffix.size(), suffix.size(), suffix) == 0;
-}
-
-bool Contains(const std::string& haystack, const std::string& needle) {
-  return haystack.find(needle) != std::string::npos;
-}
-
-bool Contains(const std::string& haystack, const char needle) {
-  return haystack.find(needle) != std::string::npos;
-}
-
-size_t Find(const StringView& needle, const StringView& haystack) {
-  if (needle.empty())
-    return 0;
-  if (needle.size() > haystack.size())
-    return std::string::npos;
-  for (size_t i = 0; i < haystack.size() - (needle.size() - 1); ++i) {
-    if (strncmp(haystack.data() + i, needle.data(), needle.size()) == 0)
-      return i;
-  }
-  return std::string::npos;
-}
-
-bool CaseInsensitiveEqual(const std::string& first, const std::string& second) {
-  return first.size() == second.size() &&
-         std::equal(
-             first.begin(), first.end(), second.begin(),
-             [](char a, char b) { return Lowercase(a) == Lowercase(b); });
-}
-
-std::string Join(const std::vector<std::string>& parts,
-                 const std::string& delim) {
-  std::string acc;
-  for (size_t i = 0; i < parts.size(); ++i) {
-    acc += parts[i];
-    if (i + 1 != parts.size()) {
-      acc += delim;
-    }
-  }
-  return acc;
-}
-
-std::vector<std::string> SplitString(const std::string& text,
-                                     const std::string& delimiter) {
-  PERFETTO_CHECK(!delimiter.empty());
-
-  std::vector<std::string> output;
-  size_t start = 0;
-  size_t next;
-  for (;;) {
-    next = std::min(text.find(delimiter, start), text.size());
-    if (next > start)
-      output.emplace_back(&text[start], next - start);
-    start = next + delimiter.size();
-    if (start >= text.size())
-      break;
-  }
-  return output;
-}
-
-std::string StripPrefix(const std::string& str, const std::string& prefix) {
-  return StartsWith(str, prefix) ? str.substr(prefix.size()) : str;
-}
-
-std::string StripSuffix(const std::string& str, const std::string& suffix) {
-  return EndsWith(str, suffix) ? str.substr(0, str.size() - suffix.size())
-                               : str;
-}
-
-std::string ToUpper(const std::string& str) {
-  // Don't use toupper(), it depends on the locale.
-  std::string res(str);
-  auto end = res.end();
-  for (auto c = res.begin(); c != end; ++c)
-    *c = Uppercase(*c);
-  return res;
-}
-
-std::string ToLower(const std::string& str) {
-  // Don't use tolower(), it depends on the locale.
-  std::string res(str);
-  auto end = res.end();
-  for (auto c = res.begin(); c != end; ++c)
-    *c = Lowercase(*c);
-  return res;
-}
-
-std::string ToHex(const char* data, size_t size) {
-  std::string hex(2 * size + 1, 'x');
-  for (size_t i = 0; i < size; ++i) {
-    // snprintf prints 3 characters, the two hex digits and a null byte. As we
-    // write left to right, we keep overwriting the nullbytes, except for the
-    // last call to snprintf.
-    snprintf(&(hex[2 * i]), 3, "%02hhx", data[i]);
-  }
-  // Remove the trailing nullbyte produced by the last snprintf.
-  hex.resize(2 * size);
-  return hex;
-}
-
-std::string IntToHexString(uint32_t number) {
-  size_t max_size = 11;  // Max uint32 is 0xFFFFFFFF + 1 for null byte.
-  std::string buf;
-  buf.resize(max_size);
-  auto final_size = snprintf(&buf[0], max_size, "0x%02x", number);
-  PERFETTO_DCHECK(final_size >= 0);
-  buf.resize(static_cast<size_t>(final_size));  // Cuts off the final null byte.
-  return buf;
-}
-
-std::string Uint64ToHexString(uint64_t number) {
-  return "0x" + Uint64ToHexStringNoPrefix(number);
-}
-
-std::string Uint64ToHexStringNoPrefix(uint64_t number) {
-  size_t max_size = 17;  // Max uint64 is FFFFFFFFFFFFFFFF + 1 for null byte.
-  std::string buf;
-  buf.resize(max_size);
-  auto final_size = snprintf(&buf[0], max_size, "%" PRIx64 "", number);
-  PERFETTO_DCHECK(final_size >= 0);
-  buf.resize(static_cast<size_t>(final_size));  // Cuts off the final null byte.
-  return buf;
-}
-
-std::string StripChars(const std::string& str,
-                       const std::string& chars,
-                       char replacement) {
-  std::string res(str);
-  const char* start = res.c_str();
-  const char* remove = chars.c_str();
-  for (const char* c = strpbrk(start, remove); c; c = strpbrk(c + 1, remove))
-    res[static_cast<uintptr_t>(c - start)] = replacement;
-  return res;
-}
-
-std::string ReplaceAll(std::string str,
-                       const std::string& to_replace,
-                       const std::string& replacement) {
-  PERFETTO_CHECK(!to_replace.empty());
-  size_t pos = 0;
-  while ((pos = str.find(to_replace, pos)) != std::string::npos) {
-    str.replace(pos, to_replace.length(), replacement);
-    pos += replacement.length();
-  }
-  return str;
-}
-
-std::string TrimLeading(const std::string& str) {
-  size_t idx = str.find_first_not_of(' ');
-  return idx == std::string::npos ? str : str.substr(idx);
-}
-
-std::string Base64Encode(const void* raw, size_t size) {
-  // The following three cases are based on the tables in the example
-  // section in https://en.wikipedia.org/wiki/Base64. We process three
-  // input bytes at a time, emitting 4 output bytes at a time.
-  const uint8_t* ptr = static_cast<const uint8_t*>(raw);
-  size_t ii = 0;
-
-  std::string out;
-  out.reserve((size + 2) * 4 / 3);
-
-  // While possible, process three input bytes.
-  for (; ii + 3 <= size; ii += 3) {
-    uint32_t twentyfour_bits =
-        (uint32_t(ptr[ii]) << 16) | (uint32_t(ptr[ii + 1]) << 8) | ptr[ii + 2];
-    out.push_back(kBase64Table[(twentyfour_bits >> 18)]);
-    out.push_back(kBase64Table[(twentyfour_bits >> 12) & 0x3f]);
-    out.push_back(kBase64Table[(twentyfour_bits >> 6) & 0x3f]);
-    out.push_back(kBase64Table[twentyfour_bits & 0x3f]);
-  }
-  if (ii + 2 <= size) {  // Process two input bytes.
-    uint32_t twentyfour_bits =
-        (uint32_t(ptr[ii]) << 16) | (uint32_t(ptr[ii + 1]) << 8);
-    out.push_back(kBase64Table[(twentyfour_bits >> 18)]);
-    out.push_back(kBase64Table[(twentyfour_bits >> 12) & 0x3f]);
-    out.push_back(kBase64Table[(twentyfour_bits >> 6) & 0x3f]);
-    out.push_back('=');  // Emit padding.
-    return out;
-  }
-  if (ii + 1 <= size) {  // Process a single input byte.
-    uint32_t twentyfour_bits = (uint32_t(ptr[ii]) << 16);
-    out.push_back(kBase64Table[(twentyfour_bits >> 18)]);
-    out.push_back(kBase64Table[(twentyfour_bits >> 12) & 0x3f]);
-    out.push_back('=');  // Emit padding.
-    out.push_back('=');  // Emit padding.
-  }
-  return out;
-}
-
-}  // namespace base
-}  // namespace perfetto
-// gen_amalgamated begin source: src/base/string_view.cc
-/*
- * Copyright (C) 2019 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-// gen_amalgamated expanded: #include "perfetto/ext/base/string_view.h"
-
-namespace perfetto {
-namespace base {
-
-// static
-constexpr size_t StringView::npos;
-
-}  // namespace base
-}  // namespace perfetto
-// gen_amalgamated begin source: src/base/temp_file.cc
-// gen_amalgamated begin header: include/perfetto/ext/base/temp_file.h
-/*
- * Copyright (C) 2018 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef INCLUDE_PERFETTO_EXT_BASE_TEMP_FILE_H_
-#define INCLUDE_PERFETTO_EXT_BASE_TEMP_FILE_H_
-
-#include <string>
-
-// gen_amalgamated expanded: #include "perfetto/ext/base/scoped_file.h"
-
-namespace perfetto {
-namespace base {
-
-std::string GetSysTempDir();
-
-class TempFile {
- public:
-  static TempFile CreateUnlinked();
-  static TempFile Create();
-
-  TempFile(TempFile&&) noexcept;
-  TempFile& operator=(TempFile&&);
-  ~TempFile();
-
-  const std::string& path() const { return path_; }
-  int fd() const { return *fd_; }
-  int operator*() const { return *fd_; }
-
-  // Unlinks the file from the filesystem but keeps the fd() open.
-  // It is safe to call this multiple times.
-  void Unlink();
-
-  // Releases the underlying file descriptor. Will unlink the file from the
-  // filesystem if it was created via CreateUnlinked().
-  ScopedFile ReleaseFD();
-
- private:
-  TempFile();
-  TempFile(const TempFile&) = delete;
-  TempFile& operator=(const TempFile&) = delete;
-
-  ScopedFile fd_;
-  std::string path_;
-};
-
-class TempDir {
- public:
-  static TempDir Create();
-
-  TempDir(TempDir&&) noexcept;
-  TempDir& operator=(TempDir&&);
-  ~TempDir();
-
-  const std::string& path() const { return path_; }
-
- private:
-  TempDir();
-  TempDir(const TempDir&) = delete;
-  TempDir& operator=(const TempDir&) = delete;
-
-  std::string path_;
-};
-
-}  // namespace base
-}  // namespace perfetto
-
-#endif  // INCLUDE_PERFETTO_EXT_BASE_TEMP_FILE_H_
-/*
- * Copyright (C) 2018 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-// gen_amalgamated expanded: #include "perfetto/ext/base/temp_file.h"
-
-// gen_amalgamated expanded: #include "perfetto/base/build_config.h"
-
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-
-#if PERFETTO_BUILDFLAG(PERFETTO_OS_WIN)
-#include <Windows.h>
-#include <direct.h>
-#include <fileapi.h>
-#include <io.h>
-#else
-#include <unistd.h>
-#endif
-
-// gen_amalgamated expanded: #include "perfetto/base/logging.h"
-// gen_amalgamated expanded: #include "perfetto/ext/base/file_utils.h"
-// gen_amalgamated expanded: #include "perfetto/ext/base/string_utils.h"
-
-#if PERFETTO_BUILDFLAG(PERFETTO_OS_WIN)
-namespace {
-std::string GetTempName() {
-  char name[] = "perfetto-XXXXXX";
-  PERFETTO_CHECK(_mktemp_s(name, sizeof(name)) == 0);
-  return name;
-}
-}  // namespace
-#endif
-
-namespace perfetto {
-namespace base {
-
-std::string GetSysTempDir() {
-  const char* tmpdir = nullptr;
-#if PERFETTO_BUILDFLAG(PERFETTO_OS_WIN)
-  if ((tmpdir = getenv("TMP")))
-    return tmpdir;
-  if ((tmpdir = getenv("TEMP")))
-    return tmpdir;
-  return "C:\\TEMP";
-#else
-  if ((tmpdir = getenv("TMPDIR")))
-    return base::StripSuffix(tmpdir, "/");
-#if PERFETTO_BUILDFLAG(PERFETTO_OS_ANDROID)
-  return "/data/local/tmp";
-#else
-  return "/tmp";
-#endif  // !OS_ANDROID
-#endif  // !OS_WIN
-}
-
-// static
-TempFile TempFile::Create() {
-  TempFile temp_file;
-#if PERFETTO_BUILDFLAG(PERFETTO_OS_WIN)
-  temp_file.path_ = GetSysTempDir() + "\\" + GetTempName();
-  // Several tests want to read-back the temp file while still open. On Windows,
-  // that requires FILE_SHARE_READ. FILE_SHARE_READ is NOT settable when using
-  // the POSIX-compat equivalent function _open(). Hence the CreateFileA +
-  // _open_osfhandle dance here.
-  HANDLE h =
-      ::CreateFileA(temp_file.path_.c_str(), GENERIC_READ | GENERIC_WRITE,
-                    FILE_SHARE_DELETE | FILE_SHARE_READ, nullptr, CREATE_ALWAYS,
-                    FILE_ATTRIBUTE_TEMPORARY, nullptr);
-  PERFETTO_CHECK(PlatformHandleChecker::IsValid(h));
-  // According to MSDN, when using _open_osfhandle the caller must not call
-  // CloseHandle(). Ownership is moved to the file descriptor, which then needs
-  // to be closed with just with _close().
-  temp_file.fd_.reset(_open_osfhandle(reinterpret_cast<intptr_t>(h), 0));
-#else
-  temp_file.path_ = GetSysTempDir() + "/perfetto-XXXXXXXX";
-  temp_file.fd_.reset(mkstemp(&temp_file.path_[0]));
-#endif
-  if (PERFETTO_UNLIKELY(!temp_file.fd_)) {
-    PERFETTO_FATAL("Could not create temp file %s", temp_file.path_.c_str());
-  }
-  return temp_file;
-}
-
-// static
-TempFile TempFile::CreateUnlinked() {
-  TempFile temp_file = TempFile::Create();
-  temp_file.Unlink();
-  return temp_file;
-}
-
-TempFile::TempFile() = default;
-
-TempFile::~TempFile() {
-  Unlink();
-}
-
-ScopedFile TempFile::ReleaseFD() {
-  Unlink();
-  return std::move(fd_);
-}
-
-void TempFile::Unlink() {
-  if (path_.empty())
-    return;
-#if PERFETTO_BUILDFLAG(PERFETTO_OS_WIN)
-  // If the FD is still open DeleteFile will mark the file as pending deletion
-  // and delete it only when the process exists.
-  PERFETTO_CHECK(DeleteFileA(path_.c_str()));
-#else
-  PERFETTO_CHECK(unlink(path_.c_str()) == 0);
-#endif
-  path_.clear();
-}
-
-TempFile::TempFile(TempFile&&) noexcept = default;
-TempFile& TempFile::operator=(TempFile&&) = default;
-
-// static
-TempDir TempDir::Create() {
-  TempDir temp_dir;
-#if PERFETTO_BUILDFLAG(PERFETTO_OS_WIN)
-  temp_dir.path_ = GetSysTempDir() + "\\" + GetTempName();
-  PERFETTO_CHECK(_mkdir(temp_dir.path_.c_str()) == 0);
-#else
-  temp_dir.path_ = GetSysTempDir() + "/perfetto-XXXXXXXX";
-  PERFETTO_CHECK(mkdtemp(&temp_dir.path_[0]));
-#endif
-  return temp_dir;
-}
-
-TempDir::TempDir() = default;
-TempDir::TempDir(TempDir&&) noexcept = default;
-TempDir& TempDir::operator=(TempDir&&) = default;
-
-TempDir::~TempDir() {
-  if (path_.empty())
-    return;  // For objects that get std::move()d.
-  PERFETTO_CHECK(Rmdir(path_));
-}
-
-}  // namespace base
-}  // namespace perfetto
-// gen_amalgamated begin source: src/base/thread_checker.cc
-/*
- * Copyright (C) 2017 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-// gen_amalgamated expanded: #include "perfetto/ext/base/thread_checker.h"
-
-#if PERFETTO_BUILDFLAG(PERFETTO_OS_WIN)
-#include <Windows.h>
-#endif
-
-namespace perfetto {
-namespace base {
-
-namespace {
-constexpr ThreadID kDetached{};
-
-ThreadID CurrentThreadId() {
-#if PERFETTO_BUILDFLAG(PERFETTO_OS_WIN)
-  return ::GetCurrentThreadId();
-#else
-  return pthread_self();
-#endif
-}
-}  // namespace
-
-ThreadChecker::ThreadChecker() {
-  thread_id_.store(CurrentThreadId());
-}
-
-ThreadChecker::~ThreadChecker() = default;
-
-ThreadChecker::ThreadChecker(const ThreadChecker& other) {
-  thread_id_ = other.thread_id_.load();
-}
-
-ThreadChecker& ThreadChecker::operator=(const ThreadChecker& other) {
-  thread_id_ = other.thread_id_.load();
-  return *this;
-}
-
-bool ThreadChecker::CalledOnValidThread() const {
-  auto self = CurrentThreadId();
-
-  // Will re-attach if previously detached using DetachFromThread().
-  auto prev_value = kDetached;
-  if (thread_id_.compare_exchange_strong(prev_value, self))
-    return true;
-  return prev_value == self;
-}
-
-void ThreadChecker::DetachFromThread() {
-  thread_id_.store(kDetached);
-}
-
-}  // namespace base
-}  // namespace perfetto
-// gen_amalgamated begin source: src/base/time.cc
-/*
- * Copyright (C) 2018 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-// gen_amalgamated expanded: #include "perfetto/base/time.h"
-
-// gen_amalgamated expanded: #include "perfetto/base/build_config.h"
-// gen_amalgamated expanded: #include "perfetto/base/logging.h"
-
-#if PERFETTO_BUILDFLAG(PERFETTO_OS_WIN)
-#include <Windows.h>
-#else
-#include <unistd.h>
-#endif
-
-namespace perfetto {
-namespace base {
-
-#if PERFETTO_BUILDFLAG(PERFETTO_OS_WIN)
-
-TimeNanos GetWallTimeNs() {
-  LARGE_INTEGER freq;
-  ::QueryPerformanceFrequency(&freq);
-  LARGE_INTEGER counter;
-  ::QueryPerformanceCounter(&counter);
-  double elapsed_nanoseconds = (1e9 * static_cast<double>(counter.QuadPart)) /
-                               static_cast<double>(freq.QuadPart);
-  return TimeNanos(static_cast<uint64_t>(elapsed_nanoseconds));
-}
-
-TimeNanos GetThreadCPUTimeNs() {
-  FILETIME dummy, kernel_ftime, user_ftime;
-  ::GetThreadTimes(GetCurrentThread(), &dummy, &dummy, &kernel_ftime,
-                   &user_ftime);
-  uint64_t kernel_time = kernel_ftime.dwHighDateTime * 0x100000000 +
-                         kernel_ftime.dwLowDateTime;
-  uint64_t user_time = user_ftime.dwHighDateTime * 0x100000000 +
-                       user_ftime.dwLowDateTime;
-
-  return TimeNanos((kernel_time + user_time) * 100);
-}
-
-void SleepMicroseconds(unsigned interval_us) {
-  // The Windows Sleep function takes a millisecond count. Round up so that
-  // short sleeps don't turn into a busy wait. Note that the sleep granularity
-  // on Windows can dynamically vary from 1 ms to ~16 ms, so don't count on this
-  // being a short sleep.
-  ::Sleep(static_cast<DWORD>((interval_us + 999) / 1000));
-}
-
-#else  // PERFETTO_BUILDFLAG(PERFETTO_OS_WIN)
-
-void SleepMicroseconds(unsigned interval_us) {
-  ::usleep(static_cast<useconds_t>(interval_us));
-}
-
-#endif  // PERFETTO_BUILDFLAG(PERFETTO_OS_WIN)
-
-std::string GetTimeFmt(const std::string& fmt) {
-  time_t raw_time;
-  time(&raw_time);
-  struct tm* local_tm;
-  local_tm = localtime(&raw_time);
-  char buf[128];
-  PERFETTO_CHECK(strftime(buf, 80, fmt.c_str(), local_tm) > 0);
-  return buf;
-}
-
-}  // namespace base
-}  // namespace perfetto
-// gen_amalgamated begin source: src/base/utils.cc
-/*
- * Copyright (C) 2020 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-// gen_amalgamated expanded: #include "perfetto/ext/base/file_utils.h"
-// gen_amalgamated expanded: #include "perfetto/ext/base/utils.h"
-
-// gen_amalgamated expanded: #include "perfetto/base/build_config.h"
-// gen_amalgamated expanded: #include "perfetto/base/logging.h"
-
-#if PERFETTO_BUILDFLAG(PERFETTO_OS_LINUX) ||   \
-    PERFETTO_BUILDFLAG(PERFETTO_OS_ANDROID) || \
-    PERFETTO_BUILDFLAG(PERFETTO_OS_APPLE)
-#include <unistd.h>  // For getpagesize() and geteuid() & fork()
-#endif
-
-#if PERFETTO_BUILDFLAG(PERFETTO_OS_APPLE)
-#include <mach/vm_page_size.h>
-#endif
-
-#if PERFETTO_BUILDFLAG(PERFETTO_OS_ANDROID)
-#include <dlfcn.h>
-#include <malloc.h>
-
-#ifdef M_PURGE
-#define PERFETTO_M_PURGE M_PURGE
-#else
-// Only available in in-tree builds and on newer SDKs.
-#define PERFETTO_M_PURGE -101
-#endif
-
-namespace {
-extern "C" {
-using MalloptType = void (*)(int, int);
-}
-}  // namespace
-#endif  // OS_ANDROID
-
-namespace perfetto {
-namespace base {
-
-void MaybeReleaseAllocatorMemToOS() {
-#if PERFETTO_BUILDFLAG(PERFETTO_OS_ANDROID)
-  // mallopt() on Android requires SDK level 26. Many targets and embedders
-  // still depend on a lower SDK level. Given mallopt() is a quite simple API,
-  // use reflection to do this rather than bumping the SDK level for all
-  // embedders. This keeps the behavior of standalone builds aligned with
-  // in-tree builds.
-  static MalloptType mallopt_fn =
-      reinterpret_cast<MalloptType>(dlsym(RTLD_DEFAULT, "mallopt"));
-  if (!mallopt_fn)
-    return;
-  mallopt_fn(PERFETTO_M_PURGE, 0);
-#endif
-}
-
-uint32_t GetSysPageSize() {
-  ignore_result(kPageSize);  // Just to keep the amalgamated build happy.
-#if PERFETTO_BUILDFLAG(PERFETTO_OS_LINUX) || \
-    PERFETTO_BUILDFLAG(PERFETTO_OS_ANDROID)
-  static std::atomic<uint32_t> page_size{0};
-  // This function might be called in hot paths. Avoid calling getpagesize() all
-  // the times, in many implementations getpagesize() calls sysconf() which is
-  // not cheap.
-  uint32_t cached_value = page_size.load(std::memory_order_relaxed);
-  if (PERFETTO_UNLIKELY(cached_value == 0)) {
-    cached_value = static_cast<uint32_t>(getpagesize());
-    page_size.store(cached_value, std::memory_order_relaxed);
-  }
-  return cached_value;
-#elif PERFETTO_BUILDFLAG(PERFETTO_OS_APPLE)
-  return static_cast<uint32_t>(vm_page_size);
-#else
-  return 4096;
-#endif
-}
-
-uid_t GetCurrentUserId() {
-#if PERFETTO_BUILDFLAG(PERFETTO_OS_LINUX) ||   \
-    PERFETTO_BUILDFLAG(PERFETTO_OS_ANDROID) || \
-    PERFETTO_BUILDFLAG(PERFETTO_OS_APPLE)
-  return geteuid();
-#else
-  // TODO(primiano): On Windows we could hash the current user SID and derive a
-  // numeric user id [1]. It is not clear whether we need that. Right now that
-  // would not bring any benefit. Returning 0 unil we can prove we need it.
-  // [1]:https://android-review.googlesource.com/c/platform/external/perfetto/+/1513879/25/src/base/utils.cc
-  return 0;
-#endif
-}
-
-void SetEnv(const std::string& key, const std::string& value) {
-#if PERFETTO_BUILDFLAG(PERFETTO_OS_WIN)
-  PERFETTO_CHECK(::_putenv_s(key.c_str(), value.c_str()) == 0);
-#else
-  PERFETTO_CHECK(::setenv(key.c_str(), value.c_str(), /*overwrite=*/true) == 0);
-#endif
-}
-
-void Daemonize() {
-   #if PERFETTO_BUILDFLAG(PERFETTO_OS_LINUX) ||   \
-       PERFETTO_BUILDFLAG(PERFETTO_OS_ANDROID) || \
-       PERFETTO_BUILDFLAG(PERFETTO_OS_APPLE)
-      pid_t pid;
-      switch (pid = fork()) {
-        case -1:
-          PERFETTO_FATAL("fork");
-        case 0: {
-          PERFETTO_CHECK(setsid() != -1);
-          base::ignore_result(chdir("/"));
-          base::ScopedFile null = base::OpenFile("/dev/null", O_RDONLY);
-          PERFETTO_CHECK(null);
-          PERFETTO_CHECK(dup2(*null, STDIN_FILENO) != -1);
-          PERFETTO_CHECK(dup2(*null, STDOUT_FILENO) != -1);
-          PERFETTO_CHECK(dup2(*null, STDERR_FILENO) != -1);
-          // Do not accidentally close stdin/stdout/stderr.
-          if (*null <= 2)
-            null.release();
-          break;
-        }
-        default:
-          printf("%d\n", pid);
-          exit(0);
-      }
-  #else
-    // Avoid -Wunreachable warnings.
-    if (reinterpret_cast<intptr_t>(&Daemonize) != 16)
-      PERFETTO_FATAL("--background is only supported on Linux/Android/Mac");
-  #endif  // OS_WIN
-}
-
-}  // namespace base
-}  // namespace perfetto
-// gen_amalgamated begin source: src/base/uuid.cc
-// gen_amalgamated begin header: include/perfetto/ext/base/uuid.h
-/*
- * Copyright (C) 2019 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef INCLUDE_PERFETTO_EXT_BASE_UUID_H_
-#define INCLUDE_PERFETTO_EXT_BASE_UUID_H_
-
-#include <array>
-#include <string>
-
-// gen_amalgamated expanded: #include "perfetto/ext/base/optional.h"
-
-namespace perfetto {
-namespace base {
-
-class Uuid {
- public:
-  explicit Uuid(const std::string& s);
-  explicit Uuid(int64_t lsb, int64_t msb);
-  Uuid();
-
-  std::array<uint8_t, 16>* data() { return &data_; }
-  const std::array<uint8_t, 16>* data() const { return &data_; }
-
-  bool operator==(const Uuid& other) const { return data_ == other.data_; }
-
-  bool operator!=(const Uuid& other) const { return !(*this == other); }
-
-  int64_t msb() const {
-    int64_t result;
-    memcpy(&result, data_.data() + 8, 8);
-    return result;
-  }
-
-  int64_t lsb() const {
-    int64_t result;
-    memcpy(&result, data_.data(), 8);
-    return result;
-  }
-
-  void set_lsb_msb(int64_t lsb, int64_t msb) {
-    set_lsb(lsb);
-    set_msb(msb);
-  }
-  void set_msb(int64_t msb) { memcpy(data_.data() + 8, &msb, 8); }
-  void set_lsb(int64_t lsb) { memcpy(data_.data(), &lsb, 8); }
-
-  std::string ToString() const;
-  std::string ToPrettyString() const;
-
- private:
-  std::array<uint8_t, 16> data_{};
-};
-
-Uuid Uuidv4();
-
-}  // namespace base
-}  // namespace perfetto
-
-#endif  // INCLUDE_PERFETTO_EXT_BASE_UUID_H_
-/*
- * Copyright (C) 2019 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-// gen_amalgamated expanded: #include "perfetto/ext/base/uuid.h"
-
-#include <random>
-
-// gen_amalgamated expanded: #include "perfetto/base/time.h"
-
-namespace perfetto {
-namespace base {
-namespace {
-
-constexpr char kHexmap[] = {'0', '1', '2', '3', '4', '5', '6', '7',
-                            '8', '9', 'a', 'b', 'c', 'd', 'e', 'f'};
-}  // namespace
-
-// See https://www.ietf.org/rfc/rfc4122.txt
-Uuid Uuidv4() {
-  static std::minstd_rand rng(static_cast<uint32_t>(GetBootTimeNs().count()));
-  Uuid uuid;
-  auto& data = *uuid.data();
-
-  for (size_t i = 0; i < 16; ++i)
-    data[i] = static_cast<uint8_t>(rng());
-
-  // version:
-  data[6] = (data[6] & 0x0f) | 0x40;
-  // clock_seq_hi_and_reserved:
-  data[8] = (data[8] & 0x3f) | 0x80;
-
-  return uuid;
-}
-
-Uuid::Uuid() {}
-
-Uuid::Uuid(const std::string& s) {
-  PERFETTO_CHECK(s.size() == data_.size());
-  memcpy(data_.data(), s.data(), s.size());
-}
-
-Uuid::Uuid(int64_t lsb, int64_t msb) {
-  set_lsb_msb(lsb, msb);
-}
-
-std::string Uuid::ToString() const {
-  return std::string(reinterpret_cast<const char*>(data_.data()), data_.size());
-}
-
-std::string Uuid::ToPrettyString() const {
-  std::string s(data_.size() * 2 + 4, '-');
-  // Format is 123e4567-e89b-12d3-a456-426655443322.
-  size_t j = 0;
-  for (size_t i = 0; i < data_.size(); ++i) {
-    if (i == 4 || i == 6 || i == 8 || i == 10)
-      j++;
-    s[2 * i + j] = kHexmap[(data_[data_.size() - i - 1] & 0xf0) >> 4];
-    s[2 * i + 1 + j] = kHexmap[(data_[data_.size() - i - 1] & 0x0f)];
-  }
-  return s;
-}
-
-}  // namespace base
-}  // namespace perfetto
-// gen_amalgamated begin source: src/base/version.cc
-// gen_amalgamated begin header: include/perfetto/ext/base/version.h
-/*
- * Copyright (C) 2020 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef INCLUDE_PERFETTO_EXT_BASE_VERSION_H_
-#define INCLUDE_PERFETTO_EXT_BASE_VERSION_H_
-
-namespace perfetto {
-namespace base {
-
-// The returned pointer is a static string is safe to pass around.
-const char* GetVersionString();
-
-}  // namespace base
-}  // namespace perfetto
-
-#endif  // INCLUDE_PERFETTO_EXT_BASE_VERSION_H_
-// gen_amalgamated begin header: gen/perfetto_version.gen.h
-// Generated by write_version_header.py
-
-#ifndef GEN_PERFETTO_VERSION_GEN_H_
-#define GEN_PERFETTO_VERSION_GEN_H_
-
-#define PERFETTO_VERSION_STRING() "v15.0"
-#define PERFETTO_VERSION_SCM_REVISION() "f69a7701253a1c934595a31c581465a1acb0af80"
-
-#endif  // GEN_PERFETTO_VERSION_GEN_H_
-/*
- * Copyright (C) 2020 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-// gen_amalgamated expanded: #include "perfetto/ext/base/version.h"
-
-// gen_amalgamated expanded: #include "perfetto/base/build_config.h"
-
-#include <stdio.h>
-
-#if PERFETTO_BUILDFLAG(PERFETTO_VERSION_GEN)
-// gen_amalgamated expanded: #include "perfetto_version.gen.h"
-#else
-#define PERFETTO_VERSION_STRING() "v0.0"
-#define PERFETTO_VERSION_SCM_REVISION() "unknown"
-#endif
-
-namespace perfetto {
-namespace base {
-
-const char* GetVersionString() {
-  static const char* version_str = [] {
-    static constexpr size_t kMaxLen = 256;
-    char* version = new char[kMaxLen + 1];
-    snprintf(version, kMaxLen, "Perfetto %s (%s)", PERFETTO_VERSION_STRING(),
-             PERFETTO_VERSION_SCM_REVISION());
-    return version;
-  }();
-  return version_str;
-}
-
-}  // namespace base
-}  // namespace perfetto
-// gen_amalgamated begin source: src/base/virtual_destructors.cc
-/*
- * Copyright (C) 2017 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-// gen_amalgamated expanded: #include "perfetto/base/task_runner.h"
-
-// This translation unit contains the definitions for the destructor of pure
-// virtual interfaces for the current build target. The alternative would be
-// introducing a one-liner .cc file for each pure virtual interface, which is
-// overkill. This is for compliance with -Wweak-vtables.
-
-namespace perfetto {
-namespace base {
-
-TaskRunner::~TaskRunner() = default;
-
-}  // namespace base
-}  // namespace perfetto
-// gen_amalgamated begin source: src/base/waitable_event.cc
-// gen_amalgamated begin header: include/perfetto/ext/base/waitable_event.h
-/*
- * Copyright (C) 2019 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef INCLUDE_PERFETTO_EXT_BASE_WAITABLE_EVENT_H_
-#define INCLUDE_PERFETTO_EXT_BASE_WAITABLE_EVENT_H_
-
-#include <condition_variable>
-#include <mutex>
-
-namespace perfetto {
-namespace base {
-
-// A waitable event for cross-thread synchronization.
-// All methods on this class can be called from any thread.
-class WaitableEvent {
- public:
-  WaitableEvent();
-  ~WaitableEvent();
-  WaitableEvent(const WaitableEvent&) = delete;
-  WaitableEvent operator=(const WaitableEvent&) = delete;
-
-  // Synchronously block until the event is notified.
-  void Wait();
-
-  // Signal the event, waking up blocked waiters.
-  void Notify();
-
- private:
-  std::mutex mutex_;
-  std::condition_variable event_;
-  bool notified_ = false;
-};
-
-}  // namespace base
-}  // namespace perfetto
-
-#endif  // INCLUDE_PERFETTO_EXT_BASE_WAITABLE_EVENT_H_
-/*
- * Copyright (C) 2019 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-// gen_amalgamated expanded: #include "perfetto/ext/base/waitable_event.h"
-
-namespace perfetto {
-namespace base {
-
-WaitableEvent::WaitableEvent() = default;
-WaitableEvent::~WaitableEvent() = default;
-
-void WaitableEvent::Wait() {
-  std::unique_lock<std::mutex> lock(mutex_);
-  return event_.wait(lock, [this] { return notified_; });
-}
-
-void WaitableEvent::Notify() {
-  std::unique_lock<std::mutex> lock(mutex_);
-  notified_ = true;
-  event_.notify_all();
-}
-
-}  // namespace base
-}  // namespace perfetto
-// gen_amalgamated begin source: src/base/watchdog_posix.cc
-// gen_amalgamated begin header: include/perfetto/ext/base/watchdog.h
-// gen_amalgamated begin header: include/perfetto/ext/base/watchdog_noop.h
-/*
- * Copyright (C) 2018 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef INCLUDE_PERFETTO_EXT_BASE_WATCHDOG_NOOP_H_
-#define INCLUDE_PERFETTO_EXT_BASE_WATCHDOG_NOOP_H_
-
-#include <stdint.h>
-
-namespace perfetto {
-namespace base {
-
-class Watchdog {
- public:
-  class Timer {
-   public:
-    // Define an empty dtor to avoid "unused variable" errors on the call site.
-    Timer() {}
-    Timer(const Timer&) {}
-    ~Timer() {}
-  };
-  static Watchdog* GetInstance() {
-    static Watchdog* watchdog = new Watchdog();
-    return watchdog;
-  }
-  Timer CreateFatalTimer(uint32_t /*ms*/) { return Timer(); }
-  void Start() {}
-  void SetMemoryLimit(uint64_t /*bytes*/, uint32_t /*window_ms*/) {}
-  void SetCpuLimit(uint32_t /*percentage*/, uint32_t /*window_ms*/) {}
-};
-
-}  // namespace base
-}  // namespace perfetto
-
-#endif  // INCLUDE_PERFETTO_EXT_BASE_WATCHDOG_NOOP_H_
-/*
- * Copyright (C) 2018 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef INCLUDE_PERFETTO_EXT_BASE_WATCHDOG_H_
-#define INCLUDE_PERFETTO_EXT_BASE_WATCHDOG_H_
-
-#include <functional>
-
-// gen_amalgamated expanded: #include "perfetto/base/build_config.h"
-
-// The POSIX watchdog is only supported on Linux and Android in non-embedder
-// builds.
-#if PERFETTO_BUILDFLAG(PERFETTO_WATCHDOG)
-// gen_amalgamated expanded: #include "perfetto/ext/base/watchdog_posix.h"
-#else
-// gen_amalgamated expanded: #include "perfetto/ext/base/watchdog_noop.h"
-#endif
-
-namespace perfetto {
-namespace base {
-
-// Make the limits more relaxed on desktop, where multi-GB traces are likely.
-// Multi-GB traces can take bursts of cpu time to write into disk at the end of
-// the trace.
-#if PERFETTO_BUILDFLAG(PERFETTO_OS_ANDROID)
-constexpr uint32_t kWatchdogDefaultCpuLimit = 75;
-constexpr uint32_t kWatchdogDefaultCpuWindow = 5 * 60 * 1000;  // 5 minutes.
-#else
-constexpr uint32_t kWatchdogDefaultCpuLimit = 90;
-constexpr uint32_t kWatchdogDefaultCpuWindow = 10 * 60 * 1000;  // 10 minutes.
-#endif
-
-// The default memory margin we give to our processes. This is used as as a
-// constant to put on top of the trace buffers.
-constexpr uint64_t kWatchdogDefaultMemorySlack = 32 * 1024 * 1024;  // 32 MiB.
-constexpr uint32_t kWatchdogDefaultMemoryWindow = 30 * 1000;  // 30 seconds.
-
-inline void RunTaskWithWatchdogGuard(const std::function<void()>& task) {
-  // Maximum time a single task can take in a TaskRunner before the
-  // program suicides.
-  constexpr int64_t kWatchdogMillis = 30000;  // 30s
-
-  Watchdog::Timer handle =
-      base::Watchdog::GetInstance()->CreateFatalTimer(kWatchdogMillis);
-  task();
-
-  // Suppress unused variable warnings in the client library amalgamated build.
-  (void)kWatchdogDefaultCpuLimit;
-  (void)kWatchdogDefaultCpuWindow;
-  (void)kWatchdogDefaultMemorySlack;
-  (void)kWatchdogDefaultMemoryWindow;
-}
-
-}  // namespace base
-}  // namespace perfetto
-
-#endif  // INCLUDE_PERFETTO_EXT_BASE_WATCHDOG_H_
-/*
- * Copyright (C) 2018 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-// gen_amalgamated expanded: #include "perfetto/ext/base/watchdog.h"
-
-#if PERFETTO_BUILDFLAG(PERFETTO_WATCHDOG)
-
-#include <fcntl.h>
-#include <inttypes.h>
-#include <signal.h>
-#include <stdint.h>
-
-#include <fstream>
-#include <thread>
-
-// gen_amalgamated expanded: #include "perfetto/base/build_config.h"
-// gen_amalgamated expanded: #include "perfetto/base/logging.h"
-// gen_amalgamated expanded: #include "perfetto/base/thread_utils.h"
-// gen_amalgamated expanded: #include "perfetto/ext/base/file_utils.h"
-// gen_amalgamated expanded: #include "perfetto/ext/base/scoped_file.h"
-// gen_amalgamated expanded: #include "perfetto/ext/base/utils.h"
-
-namespace perfetto {
-namespace base {
-
-namespace {
-
-constexpr uint32_t kDefaultPollingInterval = 30 * 1000;
-
-bool IsMultipleOf(uint32_t number, uint32_t divisor) {
-  return number >= divisor && number % divisor == 0;
-}
-
-double MeanForArray(const uint64_t array[], size_t size) {
-  uint64_t total = 0;
-  for (size_t i = 0; i < size; i++) {
-    total += array[i];
-  }
-  return static_cast<double>(total / size);
-
-}
-
-}  //  namespace
-
-bool ReadProcStat(int fd, ProcStat* out) {
-  char c[512];
-  size_t c_pos = 0;
-  while (c_pos < sizeof(c) - 1) {
-    ssize_t rd = PERFETTO_EINTR(read(fd, c + c_pos, sizeof(c) - c_pos));
-    if (rd < 0) {
-      PERFETTO_ELOG("Failed to read stat file to enforce resource limits.");
-      return false;
-    }
-    if (rd == 0)
-      break;
-    c_pos += static_cast<size_t>(rd);
-  }
-  PERFETTO_CHECK(c_pos < sizeof(c));
-  c[c_pos] = '\0';
-
-  if (sscanf(c,
-             "%*d %*s %*c %*d %*d %*d %*d %*d %*u %*u %*u %*u %*u %lu "
-             "%lu %*d %*d %*d %*d %*d %*d %*u %*u %ld",
-             &out->utime, &out->stime, &out->rss_pages) != 3) {
-    PERFETTO_ELOG("Invalid stat format: %s", c);
-    return false;
-  }
-  return true;
-}
-
-Watchdog::Watchdog(uint32_t polling_interval_ms)
-    : polling_interval_ms_(polling_interval_ms) {}
-
-Watchdog::~Watchdog() {
-  if (!thread_.joinable()) {
-    PERFETTO_DCHECK(!enabled_);
-    return;
-  }
-  PERFETTO_DCHECK(enabled_);
-  enabled_ = false;
-  exit_signal_.notify_one();
-  thread_.join();
-}
-
-Watchdog* Watchdog::GetInstance() {
-  static Watchdog* watchdog = new Watchdog(kDefaultPollingInterval);
-  return watchdog;
-}
-
-Watchdog::Timer Watchdog::CreateFatalTimer(uint32_t ms) {
-  if (!enabled_.load(std::memory_order_relaxed))
-    return Watchdog::Timer(0);
-
-  return Watchdog::Timer(ms);
-}
-
-void Watchdog::Start() {
-  std::lock_guard<std::mutex> guard(mutex_);
-  if (thread_.joinable()) {
-    PERFETTO_DCHECK(enabled_);
-  } else {
-    PERFETTO_DCHECK(!enabled_);
-
-#if PERFETTO_BUILDFLAG(PERFETTO_OS_LINUX) || \
-    PERFETTO_BUILDFLAG(PERFETTO_OS_ANDROID)
-    // Kick the thread to start running but only on Android or Linux.
-    enabled_ = true;
-    thread_ = std::thread(&Watchdog::ThreadMain, this);
-#endif
-  }
-}
-
-void Watchdog::SetMemoryLimit(uint64_t bytes, uint32_t window_ms) {
-  // Update the fields under the lock.
-  std::lock_guard<std::mutex> guard(mutex_);
-
-  PERFETTO_CHECK(IsMultipleOf(window_ms, polling_interval_ms_) || bytes == 0);
-
-  size_t size = bytes == 0 ? 0 : window_ms / polling_interval_ms_ + 1;
-  memory_window_bytes_.Reset(size);
-  memory_limit_bytes_ = bytes;
-}
-
-void Watchdog::SetCpuLimit(uint32_t percentage, uint32_t window_ms) {
-  std::lock_guard<std::mutex> guard(mutex_);
-
-  PERFETTO_CHECK(percentage <= 100);
-  PERFETTO_CHECK(IsMultipleOf(window_ms, polling_interval_ms_) ||
-                 percentage == 0);
-
-  size_t size = percentage == 0 ? 0 : window_ms / polling_interval_ms_ + 1;
-  cpu_window_time_ticks_.Reset(size);
-  cpu_limit_percentage_ = percentage;
-}
-
-void Watchdog::ThreadMain() {
-  base::ScopedFile stat_fd(base::OpenFile("/proc/self/stat", O_RDONLY));
-  if (!stat_fd) {
-    PERFETTO_ELOG("Failed to open stat file to enforce resource limits.");
-    return;
-  }
-
-  std::unique_lock<std::mutex> guard(mutex_);
-  for (;;) {
-    exit_signal_.wait_for(guard,
-                          std::chrono::milliseconds(polling_interval_ms_));
-    if (!enabled_)
-      return;
-
-    lseek(stat_fd.get(), 0, SEEK_SET);
-
-    ProcStat stat;
-    if (!ReadProcStat(stat_fd.get(), &stat)) {
-      return;
-    }
-
-    uint64_t cpu_time = stat.utime + stat.stime;
-    uint64_t rss_bytes =
-        static_cast<uint64_t>(stat.rss_pages) * base::GetSysPageSize();
-
-    CheckMemory(rss_bytes);
-    CheckCpu(cpu_time);
-  }
-}
-
-void Watchdog::CheckMemory(uint64_t rss_bytes) {
-  if (memory_limit_bytes_ == 0)
-    return;
-
-  // Add the current stat value to the ring buffer and check that the mean
-  // remains under our threshold.
-  if (memory_window_bytes_.Push(rss_bytes)) {
-    if (memory_window_bytes_.Mean() > static_cast<double>(memory_limit_bytes_)) {
-      PERFETTO_ELOG(
-          "Memory watchdog trigger. Memory window of %f bytes is above the "
-          "%" PRIu64 " bytes limit.",
-          memory_window_bytes_.Mean(), memory_limit_bytes_);
-      kill(getpid(), SIGABRT);
-    }
-  }
-}
-
-void Watchdog::CheckCpu(uint64_t cpu_time) {
-  if (cpu_limit_percentage_ == 0)
-    return;
-
-  // Add the cpu time to the ring buffer.
-  if (cpu_window_time_ticks_.Push(cpu_time)) {
-    // Compute the percentage over the whole window and check that it remains
-    // under the threshold.
-    uint64_t difference_ticks = cpu_window_time_ticks_.NewestWhenFull() -
-                                cpu_window_time_ticks_.OldestWhenFull();
-    double window_interval_ticks =
-        (static_cast<double>(WindowTimeForRingBuffer(cpu_window_time_ticks_)) /
-         1000.0) *
-        static_cast<double>(sysconf(_SC_CLK_TCK));
-    double percentage = static_cast<double>(difference_ticks) /
-                        static_cast<double>(window_interval_ticks) * 100;
-    if (percentage > cpu_limit_percentage_) {
-      PERFETTO_ELOG("CPU watchdog trigger. %f%% CPU use is above the %" PRIu32
-                    "%% CPU limit.",
-                    percentage, cpu_limit_percentage_);
-      kill(getpid(), SIGABRT);
-    }
-  }
-}
-
-uint32_t Watchdog::WindowTimeForRingBuffer(const WindowedInterval& window) {
-  return static_cast<uint32_t>(window.size() - 1) * polling_interval_ms_;
-}
-
-bool Watchdog::WindowedInterval::Push(uint64_t sample) {
-  // Add the sample to the current position in the ring buffer.
-  buffer_[position_] = sample;
-
-  // Update the position with next one circularily.
-  position_ = (position_ + 1) % size_;
-
-  // Set the filled flag the first time we wrap.
-  filled_ = filled_ || position_ == 0;
-  return filled_;
-}
-
-double Watchdog::WindowedInterval::Mean() const {
-  return MeanForArray(buffer_.get(), size_);
-}
-
-void Watchdog::WindowedInterval::Clear() {
-  position_ = 0;
-  buffer_.reset(new uint64_t[size_]());
-}
-
-void Watchdog::WindowedInterval::Reset(size_t new_size) {
-  position_ = 0;
-  size_ = new_size;
-  buffer_.reset(new_size == 0 ? nullptr : new uint64_t[new_size]());
-}
-
-Watchdog::Timer::Timer(uint32_t ms) {
-  if (!ms)
-    return;  // No-op timer created when the watchdog is disabled.
-
-  struct sigevent sev = {};
-  timer_t timerid;
-  sev.sigev_notify = SIGEV_THREAD_ID;
-  sev._sigev_un._tid = base::GetThreadId();
-  sev.sigev_signo = SIGABRT;
-  PERFETTO_CHECK(timer_create(CLOCK_MONOTONIC, &sev, &timerid) != -1);
-  timerid_ = base::make_optional(timerid);
-  struct itimerspec its = {};
-  its.it_value.tv_sec = ms / 1000;
-  its.it_value.tv_nsec = 1000000L * (ms % 1000);
-  PERFETTO_CHECK(timer_settime(timerid_.value(), 0, &its, nullptr) != -1);
-}
-
-Watchdog::Timer::~Timer() {
-  if (timerid_) {
-    timer_delete(timerid_.value());
-  }
-}
-
-Watchdog::Timer::Timer(Timer&& other) noexcept {
-  timerid_ = std::move(other.timerid_);
-  other.timerid_ = base::nullopt;
-}
-
-}  // namespace base
-}  // namespace perfetto
-
-#endif  // PERFETTO_BUILDFLAG(PERFETTO_WATCHDOG)
-// gen_amalgamated begin source: src/base/thread_task_runner.cc
-// gen_amalgamated begin header: include/perfetto/ext/base/thread_task_runner.h
-// gen_amalgamated begin header: include/perfetto/ext/base/unix_task_runner.h
-/*
- * Copyright (C) 2017 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef INCLUDE_PERFETTO_EXT_BASE_UNIX_TASK_RUNNER_H_
-#define INCLUDE_PERFETTO_EXT_BASE_UNIX_TASK_RUNNER_H_
-
-// gen_amalgamated expanded: #include "perfetto/base/build_config.h"
-// gen_amalgamated expanded: #include "perfetto/base/task_runner.h"
-// gen_amalgamated expanded: #include "perfetto/base/thread_utils.h"
-// gen_amalgamated expanded: #include "perfetto/base/time.h"
-// gen_amalgamated expanded: #include "perfetto/ext/base/event_fd.h"
-// gen_amalgamated expanded: #include "perfetto/ext/base/scoped_file.h"
-// gen_amalgamated expanded: #include "perfetto/ext/base/thread_checker.h"
-
-#include <chrono>
-#include <deque>
-#include <map>
-#include <mutex>
-#include <vector>
-
-#if !PERFETTO_BUILDFLAG(PERFETTO_OS_WIN)
-#include <poll.h>
-#endif
-
-namespace perfetto {
-namespace base {
-
-// Runs a task runner on the current thread.
-//
-// Implementation note: we currently assume (and enforce in debug builds) that
-// Run() is called from the thread that constructed the UnixTaskRunner. This is
-// not strictly necessary, and we could instead track the thread that invokes
-// Run(). However, a related property that *might* be important to enforce is
-// that the destructor runs on the task-running thread. Otherwise, if there are
-// still-pending tasks at the time of destruction, we would destroy those
-// outside of the task thread (which might be unexpected to the caller). On the
-// other hand, the std::function task interface discourages use of any
-// resource-owning tasks (as the callable needs to be copyable), so this might
-// not be important in practice.
-//
-// TODO(rsavitski): consider adding a thread-check in the destructor, after
-// auditing existing usages.
-// TODO(primiano): rename this to TaskRunnerImpl. The "Unix" part is misleading
-// now as it supports also Windows.
-class UnixTaskRunner : public TaskRunner {
- public:
-  UnixTaskRunner();
-  ~UnixTaskRunner() override;
-
-  // Start executing tasks. Doesn't return until Quit() is called. Run() may be
-  // called multiple times on the same task runner.
-  void Run();
-  void Quit();
-
-  // Checks whether there are any pending immediate tasks to run. Note that
-  // delayed tasks don't count even if they are due to run.
-  bool IsIdleForTesting();
-
-  // TaskRunner implementation:
-  void PostTask(std::function<void()>) override;
-  void PostDelayedTask(std::function<void()>, uint32_t delay_ms) override;
-  void AddFileDescriptorWatch(PlatformHandle, std::function<void()>) override;
-  void RemoveFileDescriptorWatch(PlatformHandle) override;
-  bool RunsTasksOnCurrentThread() const override;
-
-  // Returns true if the task runner is quitting, or has quit and hasn't been
-  // restarted since. Exposed primarily for ThreadTaskRunner, not necessary for
-  // normal use of this class.
-  bool QuitCalled();
-
- private:
-  void WakeUp();
-  void UpdateWatchTasksLocked();
-  int GetDelayMsToNextTaskLocked() const;
-  void RunImmediateAndDelayedTask();
-  void PostFileDescriptorWatches(uint64_t windows_wait_result);
-  void RunFileDescriptorWatch(PlatformHandle);
-
-  ThreadChecker thread_checker_;
-  PlatformThreadId created_thread_id_ = GetThreadId();
-
-  EventFd event_;
-
-// The array of fds/handles passed to poll(2) / WaitForMultipleObjects().
-#if PERFETTO_BUILDFLAG(PERFETTO_OS_WIN)
-  std::vector<PlatformHandle> poll_fds_;
-#else
-  std::vector<struct pollfd> poll_fds_;
-#endif
-
-  // --- Begin lock-protected members ---
-
-  std::mutex lock_;
-
-  std::deque<std::function<void()>> immediate_tasks_;
-  std::multimap<TimeMillis, std::function<void()>> delayed_tasks_;
-  bool quit_ = false;
-
-  struct WatchTask {
-    std::function<void()> callback;
-#if PERFETTO_BUILDFLAG(PERFETTO_OS_WIN)
-    // On UNIX systems we make the FD number negative in |poll_fds_| to avoid
-    // polling it again until the queued task runs. On Windows we can't do that.
-    // Instead we keep track of its state here.
-    bool pending = false;
-#else
-    size_t poll_fd_index;  // Index into |poll_fds_|.
-#endif
-  };
-
-  std::map<PlatformHandle, WatchTask> watch_tasks_;
-  bool watch_tasks_changed_ = false;
-
-  // --- End lock-protected members ---
-};
-
-}  // namespace base
-}  // namespace perfetto
-
-#endif  // INCLUDE_PERFETTO_EXT_BASE_UNIX_TASK_RUNNER_H_
-/*
- * Copyright (C) 2019 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef INCLUDE_PERFETTO_EXT_BASE_THREAD_TASK_RUNNER_H_
-#define INCLUDE_PERFETTO_EXT_BASE_THREAD_TASK_RUNNER_H_
-
-#include <functional>
-#include <thread>
-
-// gen_amalgamated expanded: #include "perfetto/ext/base/unix_task_runner.h"
-
-namespace perfetto {
-namespace base {
-
-// A UnixTaskRunner backed by a dedicated task thread. Shuts down the runner and
-// joins the thread upon destruction. Can be moved to transfer ownership.
-//
-// Guarantees that:
-// * the UnixTaskRunner will be constructed and destructed on the task thread.
-// * the task thread will live for the lifetime of the UnixTaskRunner.
-//
-class PERFETTO_EXPORT ThreadTaskRunner : public TaskRunner {
- public:
-  static ThreadTaskRunner CreateAndStart(const std::string& name = "") {
-    return ThreadTaskRunner(name);
-  }
-
-  ThreadTaskRunner(const ThreadTaskRunner&) = delete;
-  ThreadTaskRunner& operator=(const ThreadTaskRunner&) = delete;
-
-  ThreadTaskRunner(ThreadTaskRunner&&) noexcept;
-  ThreadTaskRunner& operator=(ThreadTaskRunner&&);
-  ~ThreadTaskRunner() override;
-
-  // Executes the given function on the task runner thread and blocks the caller
-  // thread until the function has run.
-  void PostTaskAndWaitForTesting(std::function<void()>);
-
-  // Can be called from another thread to get the CPU time of the thread the
-  // task-runner is executing on.
-  uint64_t GetThreadCPUTimeNsForTesting();
-
-  // Returns a pointer to the UnixTaskRunner, which is valid for the lifetime of
-  // this ThreadTaskRunner object (unless this object is moved-from, in which
-  // case the pointer remains valid for the lifetime of the new owning
-  // ThreadTaskRunner).
-  //
-  // Warning: do not call Quit() on the returned runner pointer, the termination
-  // should be handled exclusively by this class' destructor.
-  UnixTaskRunner* get() const { return task_runner_; }
-
-  // TaskRunner implementation.
-  // These methods just proxy to the underlying task_runner_.
-  void PostTask(std::function<void()>) override;
-  void PostDelayedTask(std::function<void()>, uint32_t delay_ms) override;
-  void AddFileDescriptorWatch(PlatformHandle, std::function<void()>) override;
-  void RemoveFileDescriptorWatch(PlatformHandle) override;
-  bool RunsTasksOnCurrentThread() const override;
-
- private:
-  explicit ThreadTaskRunner(const std::string& name);
-  void RunTaskThread(std::function<void(UnixTaskRunner*)> initializer);
-
-  std::thread thread_;
-  std::string name_;
-  UnixTaskRunner* task_runner_ = nullptr;
-};
-
-}  // namespace base
-}  // namespace perfetto
-
-#endif  // INCLUDE_PERFETTO_EXT_BASE_THREAD_TASK_RUNNER_H_
-// gen_amalgamated begin header: include/perfetto/ext/base/thread_utils.h
-/*
- * Copyright (C) 2020 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef INCLUDE_PERFETTO_EXT_BASE_THREAD_UTILS_H_
-#define INCLUDE_PERFETTO_EXT_BASE_THREAD_UTILS_H_
-
-#include <string>
-
-// gen_amalgamated expanded: #include "perfetto/base/build_config.h"
-
-#if PERFETTO_BUILDFLAG(PERFETTO_OS_LINUX) ||   \
-    PERFETTO_BUILDFLAG(PERFETTO_OS_ANDROID) || \
-    PERFETTO_BUILDFLAG(PERFETTO_OS_APPLE)
-#include <pthread.h>
-#include <string.h>
-#include <algorithm>
-#endif
-
-#if PERFETTO_BUILDFLAG(PERFETTO_OS_ANDROID)
-#include <sys/prctl.h>
-#endif
-
-// Internal implementation utils that aren't as widely useful/supported as
-// base/thread_utils.h.
-
-namespace perfetto {
-namespace base {
-
-#if PERFETTO_BUILDFLAG(PERFETTO_OS_LINUX) ||   \
-    PERFETTO_BUILDFLAG(PERFETTO_OS_ANDROID) || \
-    PERFETTO_BUILDFLAG(PERFETTO_OS_APPLE)
-// Sets the "comm" of the calling thread to the first 15 chars of the given
-// string.
-inline bool MaybeSetThreadName(const std::string& name) {
-  char buf[16] = {};
-  size_t sz = std::min(name.size(), static_cast<size_t>(15));
-  strncpy(buf, name.c_str(), sz);
-
-#if PERFETTO_BUILDFLAG(PERFETTO_OS_APPLE)
-  return pthread_setname_np(buf) == 0;
-#else
-  return pthread_setname_np(pthread_self(), buf) == 0;
-#endif
-}
-
-inline bool GetThreadName(std::string& out_result) {
-  char buf[16] = {};
-#if PERFETTO_BUILDFLAG(PERFETTO_OS_ANDROID)
-  if (prctl(PR_GET_NAME, buf) != 0)
-    return false;
-#else
-  if (pthread_getname_np(pthread_self(), buf, sizeof(buf)) != 0)
-    return false;
-#endif
-  out_result = std::string(buf);
-  return true;
-}
-
-#else
-inline bool MaybeSetThreadName(const std::string&) {
-  return false;
-}
-inline bool GetThreadName(std::string&) {
-  return false;
-}
-#endif
-
-}  // namespace base
-}  // namespace perfetto
-
-#endif  // INCLUDE_PERFETTO_EXT_BASE_THREAD_UTILS_H_
-/*
- * Copyright (C) 2019 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-// gen_amalgamated expanded: #include "perfetto/base/build_config.h"
-
-// gen_amalgamated expanded: #include "perfetto/ext/base/thread_task_runner.h"
-
-#include <condition_variable>
-#include <functional>
-#include <mutex>
-#include <thread>
-
-// gen_amalgamated expanded: #include "perfetto/base/logging.h"
-// gen_amalgamated expanded: #include "perfetto/ext/base/thread_utils.h"
-// gen_amalgamated expanded: #include "perfetto/ext/base/unix_task_runner.h"
-
-#if PERFETTO_BUILDFLAG(PERFETTO_OS_LINUX) || \
-    PERFETTO_BUILDFLAG(PERFETTO_OS_ANDROID)
-#include <sys/prctl.h>
-#endif
-
-namespace perfetto {
-namespace base {
-
-ThreadTaskRunner::ThreadTaskRunner(ThreadTaskRunner&& other) noexcept
-    : thread_(std::move(other.thread_)), task_runner_(other.task_runner_) {
-  other.task_runner_ = nullptr;
-}
-
-ThreadTaskRunner& ThreadTaskRunner::operator=(ThreadTaskRunner&& other) {
-  this->~ThreadTaskRunner();
-  new (this) ThreadTaskRunner(std::move(other));
-  return *this;
-}
-
-ThreadTaskRunner::~ThreadTaskRunner() {
-  if (task_runner_) {
-    PERFETTO_CHECK(!task_runner_->QuitCalled());
-    task_runner_->Quit();
-
-    PERFETTO_DCHECK(thread_.joinable());
-  }
-  if (thread_.joinable())
-    thread_.join();
-}
-
-ThreadTaskRunner::ThreadTaskRunner(const std::string& name) : name_(name) {
-  std::mutex init_lock;
-  std::condition_variable init_cv;
-
-  std::function<void(UnixTaskRunner*)> initializer =
-      [this, &init_lock, &init_cv](UnixTaskRunner* task_runner) {
-        std::lock_guard<std::mutex> lock(init_lock);
-        task_runner_ = task_runner;
-        // Notify while still holding the lock, as init_cv ceases to exist as
-        // soon as the main thread observes a non-null task_runner_, and it can
-        // wake up spuriously (i.e. before the notify if we had unlocked before
-        // notifying).
-        init_cv.notify_one();
-      };
-
-  thread_ = std::thread(&ThreadTaskRunner::RunTaskThread, this,
-                        std::move(initializer));
-
-  std::unique_lock<std::mutex> lock(init_lock);
-  init_cv.wait(lock, [this] { return !!task_runner_; });
-}
-
-void ThreadTaskRunner::RunTaskThread(
-    std::function<void(UnixTaskRunner*)> initializer) {
-  if (!name_.empty()) {
-    base::MaybeSetThreadName(name_);
-  }
-
-  UnixTaskRunner task_runner;
-  task_runner.PostTask(std::bind(std::move(initializer), &task_runner));
-  task_runner.Run();
-}
-
-void ThreadTaskRunner::PostTaskAndWaitForTesting(std::function<void()> fn) {
-  std::mutex mutex;
-  std::condition_variable cv;
-
-  std::unique_lock<std::mutex> lock(mutex);
-  bool done = false;
-  task_runner_->PostTask([&mutex, &cv, &done, &fn] {
-    fn();
-
-    std::lock_guard<std::mutex> inner_lock(mutex);
-    done = true;
-    cv.notify_one();
-  });
-  cv.wait(lock, [&done] { return done; });
-}
-
-uint64_t ThreadTaskRunner::GetThreadCPUTimeNsForTesting() {
-  uint64_t thread_time_ns = 0;
-  PostTaskAndWaitForTesting([&thread_time_ns] {
-    thread_time_ns = static_cast<uint64_t>(base::GetThreadCPUTimeNs().count());
-  });
-  return thread_time_ns;
-}
-
-void ThreadTaskRunner::PostTask(std::function<void()> task) {
-  task_runner_->PostTask(std::move(task));
-}
-
-void ThreadTaskRunner::PostDelayedTask(std::function<void()> task,
-                                       uint32_t delay_ms) {
-  task_runner_->PostDelayedTask(std::move(task), delay_ms);
-}
-
-void ThreadTaskRunner::AddFileDescriptorWatch(
-    PlatformHandle handle,
-    std::function<void()> watch_task) {
-  task_runner_->AddFileDescriptorWatch(handle, std::move(watch_task));
-}
-
-void ThreadTaskRunner::RemoveFileDescriptorWatch(PlatformHandle handle) {
-  task_runner_->RemoveFileDescriptorWatch(handle);
-}
-
-bool ThreadTaskRunner::RunsTasksOnCurrentThread() const {
-  return task_runner_->RunsTasksOnCurrentThread();
-}
-
-}  // namespace base
-}  // namespace perfetto
-// gen_amalgamated begin source: src/base/unix_task_runner.cc
-/*
- * Copyright (C) 2017 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-// gen_amalgamated expanded: #include "perfetto/base/build_config.h"
-
-// gen_amalgamated expanded: #include "perfetto/ext/base/unix_task_runner.h"
-
-#include <errno.h>
-#include <stdlib.h>
-
-#if PERFETTO_BUILDFLAG(PERFETTO_OS_WIN)
-#include <Windows.h>
-#include <synchapi.h>
-#else
-#include <unistd.h>
-#endif
-
-#include <algorithm>
-#include <limits>
-
-// gen_amalgamated expanded: #include "perfetto/ext/base/watchdog.h"
-
-namespace perfetto {
-namespace base {
-
-UnixTaskRunner::UnixTaskRunner() {
-  AddFileDescriptorWatch(event_.fd(), [] {
-    // Not reached -- see PostFileDescriptorWatches().
-    PERFETTO_DFATAL("Should be unreachable.");
-  });
-}
-
-UnixTaskRunner::~UnixTaskRunner() = default;
-
-void UnixTaskRunner::WakeUp() {
-  event_.Notify();
-}
-
-void UnixTaskRunner::Run() {
-  PERFETTO_DCHECK_THREAD(thread_checker_);
-  created_thread_id_ = GetThreadId();
-  quit_ = false;
-  for (;;) {
-    int poll_timeout_ms;
-    {
-      std::lock_guard<std::mutex> lock(lock_);
-      if (quit_)
-        return;
-      poll_timeout_ms = GetDelayMsToNextTaskLocked();
-      UpdateWatchTasksLocked();
-    }
-
-#if PERFETTO_BUILDFLAG(PERFETTO_OS_WIN)
-    DWORD timeout =
-        poll_timeout_ms >= 0 ? static_cast<DWORD>(poll_timeout_ms) : INFINITE;
-    DWORD ret =
-        WaitForMultipleObjects(static_cast<DWORD>(poll_fds_.size()),
-                               &poll_fds_[0], /*bWaitAll=*/false, timeout);
-    // Unlike poll(2), WaitForMultipleObjects() returns only *one* handle in the
-    // set, even when >1 is signalled. In order to avoid starvation,
-    // PostFileDescriptorWatches() will WaitForSingleObject() each other handle
-    // to ensure fairness. |ret| here is passed just to avoid an extra
-    // WaitForSingleObject() for the one handle that WaitForMultipleObject()
-    // returned.
-    PostFileDescriptorWatches(ret);
-#else
-    int ret = PERFETTO_EINTR(poll(
-        &poll_fds_[0], static_cast<nfds_t>(poll_fds_.size()), poll_timeout_ms));
-    PERFETTO_CHECK(ret >= 0);
-    PostFileDescriptorWatches(0 /*ignored*/);
-#endif
-
-    // To avoid starvation we always interleave all types of tasks -- immediate,
-    // delayed and file descriptor watches.
-    RunImmediateAndDelayedTask();
-  }
-}
-
-void UnixTaskRunner::Quit() {
-  std::lock_guard<std::mutex> lock(lock_);
-  quit_ = true;
-  WakeUp();
-}
-
-bool UnixTaskRunner::QuitCalled() {
-  std::lock_guard<std::mutex> lock(lock_);
-  return quit_;
-}
-
-bool UnixTaskRunner::IsIdleForTesting() {
-  std::lock_guard<std::mutex> lock(lock_);
-  return immediate_tasks_.empty();
-}
-
-void UnixTaskRunner::UpdateWatchTasksLocked() {
-  PERFETTO_DCHECK_THREAD(thread_checker_);
-#if !PERFETTO_BUILDFLAG(PERFETTO_OS_WIN)
-  if (!watch_tasks_changed_)
-    return;
-  watch_tasks_changed_ = false;
-#endif
-  poll_fds_.clear();
-  for (auto& it : watch_tasks_) {
-    PlatformHandle handle = it.first;
-    WatchTask& watch_task = it.second;
-#if PERFETTO_BUILDFLAG(PERFETTO_OS_WIN)
-    if (!watch_task.pending)
-      poll_fds_.push_back(handle);
-#else
-    watch_task.poll_fd_index = poll_fds_.size();
-    poll_fds_.push_back({handle, POLLIN | POLLHUP, 0});
-#endif
-  }
-}
-
-void UnixTaskRunner::RunImmediateAndDelayedTask() {
-  // If locking overhead becomes an issue, add a separate work queue.
-  std::function<void()> immediate_task;
-  std::function<void()> delayed_task;
-  TimeMillis now = GetWallTimeMs();
-  {
-    std::lock_guard<std::mutex> lock(lock_);
-    if (!immediate_tasks_.empty()) {
-      immediate_task = std::move(immediate_tasks_.front());
-      immediate_tasks_.pop_front();
-    }
-    if (!delayed_tasks_.empty()) {
-      auto it = delayed_tasks_.begin();
-      if (now >= it->first) {
-        delayed_task = std::move(it->second);
-        delayed_tasks_.erase(it);
-      }
-    }
-  }
-
-  errno = 0;
-  if (immediate_task)
-    RunTaskWithWatchdogGuard(immediate_task);
-  errno = 0;
-  if (delayed_task)
-    RunTaskWithWatchdogGuard(delayed_task);
-}
-
-void UnixTaskRunner::PostFileDescriptorWatches(uint64_t windows_wait_result) {
-  PERFETTO_DCHECK_THREAD(thread_checker_);
-  for (size_t i = 0; i < poll_fds_.size(); i++) {
-#if PERFETTO_BUILDFLAG(PERFETTO_OS_WIN)
-    const PlatformHandle handle = poll_fds_[i];
-    // |windows_wait_result| is the result of WaitForMultipleObjects() call. If
-    // one of the objects was signalled, it will have a value between
-    // [0, poll_fds_.size()].
-    if (i != windows_wait_result &&
-        WaitForSingleObject(handle, 0) != WAIT_OBJECT_0) {
-      continue;
-    }
-#else
-    base::ignore_result(windows_wait_result);
-    const PlatformHandle handle = poll_fds_[i].fd;
-    if (!(poll_fds_[i].revents & (POLLIN | POLLHUP)))
-      continue;
-    poll_fds_[i].revents = 0;
-#endif
-
-    // The wake-up event is handled inline to avoid an infinite recursion of
-    // posted tasks.
-    if (handle == event_.fd()) {
-      event_.Clear();
-      continue;
-    }
-
-    // Binding to |this| is safe since we are the only object executing the
-    // task.
-    PostTask(std::bind(&UnixTaskRunner::RunFileDescriptorWatch, this, handle));
-
-    // Flag the task as pending.
-#if PERFETTO_BUILDFLAG(PERFETTO_OS_WIN)
-    // On Windows this is done by marking the WatchTask entry as pending. This
-    // is more expensive than Linux as requires rebuilding the |poll_fds_|
-    // vector on each call. There doesn't seem to be a good alternative though.
-    auto it = watch_tasks_.find(handle);
-    PERFETTO_CHECK(it != watch_tasks_.end());
-    PERFETTO_DCHECK(!it->second.pending);
-    it->second.pending = true;
-#else
-    // On UNIX systems instead, we just make the fd negative while its task is
-    // pending. This makes poll(2) ignore the fd.
-    PERFETTO_DCHECK(poll_fds_[i].fd >= 0);
-    poll_fds_[i].fd = -poll_fds_[i].fd;
-#endif
-  }
-}
-
-void UnixTaskRunner::RunFileDescriptorWatch(PlatformHandle fd) {
-  std::function<void()> task;
-  {
-    std::lock_guard<std::mutex> lock(lock_);
-    auto it = watch_tasks_.find(fd);
-    if (it == watch_tasks_.end())
-      return;
-    WatchTask& watch_task = it->second;
-
-    // Make poll(2) pay attention to the fd again. Since another thread may have
-    // updated this watch we need to refresh the set first.
-    UpdateWatchTasksLocked();
-
-#if PERFETTO_BUILDFLAG(PERFETTO_OS_WIN)
-    // On Windows we manually track the presence of outstanding tasks for the
-    // watch. The UpdateWatchTasksLocked() in the Run() loop will re-add the
-    // task to the |poll_fds_| vector.
-    PERFETTO_DCHECK(watch_task.pending);
-    watch_task.pending = false;
-#else
-    size_t fd_index = watch_task.poll_fd_index;
-    PERFETTO_DCHECK(fd_index < poll_fds_.size());
-    PERFETTO_DCHECK(::abs(poll_fds_[fd_index].fd) == fd);
-    poll_fds_[fd_index].fd = fd;
-#endif
-    task = watch_task.callback;
-  }
-  errno = 0;
-  RunTaskWithWatchdogGuard(task);
-}
-
-int UnixTaskRunner::GetDelayMsToNextTaskLocked() const {
-  PERFETTO_DCHECK_THREAD(thread_checker_);
-  if (!immediate_tasks_.empty())
-    return 0;
-  if (!delayed_tasks_.empty()) {
-    TimeMillis diff = delayed_tasks_.begin()->first - GetWallTimeMs();
-    return std::max(0, static_cast<int>(diff.count()));
-  }
-  return -1;
-}
-
-void UnixTaskRunner::PostTask(std::function<void()> task) {
-  bool was_empty;
-  {
-    std::lock_guard<std::mutex> lock(lock_);
-    was_empty = immediate_tasks_.empty();
-    immediate_tasks_.push_back(std::move(task));
-  }
-  if (was_empty)
-    WakeUp();
-}
-
-void UnixTaskRunner::PostDelayedTask(std::function<void()> task,
-                                     uint32_t delay_ms) {
-  TimeMillis runtime = GetWallTimeMs() + TimeMillis(delay_ms);
-  {
-    std::lock_guard<std::mutex> lock(lock_);
-    delayed_tasks_.insert(std::make_pair(runtime, std::move(task)));
-  }
-  WakeUp();
-}
-
-void UnixTaskRunner::AddFileDescriptorWatch(PlatformHandle fd,
-                                            std::function<void()> task) {
-  PERFETTO_DCHECK(PlatformHandleChecker::IsValid(fd));
-  {
-    std::lock_guard<std::mutex> lock(lock_);
-    PERFETTO_DCHECK(!watch_tasks_.count(fd));
-    WatchTask& watch_task = watch_tasks_[fd];
-    watch_task.callback = std::move(task);
-#if PERFETTO_BUILDFLAG(PERFETTO_OS_WIN)
-    watch_task.pending = false;
-#else
-    watch_task.poll_fd_index = SIZE_MAX;
-#endif
-    watch_tasks_changed_ = true;
-  }
-  WakeUp();
-}
-
-void UnixTaskRunner::RemoveFileDescriptorWatch(PlatformHandle fd) {
-  PERFETTO_DCHECK(PlatformHandleChecker::IsValid(fd));
-  {
-    std::lock_guard<std::mutex> lock(lock_);
-    PERFETTO_DCHECK(watch_tasks_.count(fd));
-    watch_tasks_.erase(fd);
-    watch_tasks_changed_ = true;
-  }
-  // No need to schedule a wake-up for this.
-}
-
-bool UnixTaskRunner::RunsTasksOnCurrentThread() const {
-  return GetThreadId() == created_thread_id_;
-}
-
-}  // namespace base
-}  // namespace perfetto
-// gen_amalgamated begin source: src/base/subprocess.cc
-// gen_amalgamated begin header: include/perfetto/ext/base/subprocess.h
-/*
- * Copyright (C) 2020 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef INCLUDE_PERFETTO_EXT_BASE_SUBPROCESS_H_
-#define INCLUDE_PERFETTO_EXT_BASE_SUBPROCESS_H_
-
-#include <condition_variable>
-#include <functional>
-#include <initializer_list>
-#include <mutex>
-#include <string>
-#include <thread>
-#include <vector>
-
-// gen_amalgamated expanded: #include "perfetto/base/build_config.h"
-// gen_amalgamated expanded: #include "perfetto/base/logging.h"
-// gen_amalgamated expanded: #include "perfetto/base/platform_handle.h"
-// gen_amalgamated expanded: #include "perfetto/base/proc_utils.h"
-// gen_amalgamated expanded: #include "perfetto/ext/base/event_fd.h"
-// gen_amalgamated expanded: #include "perfetto/ext/base/pipe.h"
-// gen_amalgamated expanded: #include "perfetto/ext/base/scoped_file.h"
-
-namespace perfetto {
-namespace base {
-
-// Handles creation and lifecycle management of subprocesses, taking care of
-// all subtleties involved in handling processes on UNIX.
-// This class allows to deal with macro two use-cases:
-// 1) fork() + exec() equivalent: for spawning a brand new process image.
-//    This happens when |args.exec_cmd| is not empty.
-//    This is safe to use even in a multi-threaded environment.
-// 2) fork(): for spawning a process and running a function.
-//    This happens when |args.posix_entrypoint_for_testing| is not empty.
-//    This is intended only for tests as it is extremely subtle.
-//    This mode must be used with extreme care. Before the entrypoint is
-//    invoked all file descriptors other than stdin/out/err and the ones
-//    specified in |args.preserve_fds| will be closed, to avoid each process
-//    retaining a dupe of other subprocesses pipes. This however means that
-//    any non trivial calls (including logging) must be avoided as they might
-//    refer to FDs that are now closed. The entrypoint should really be used
-//    just to signal a pipe or similar for synchronizing sequencing in tests.
-
-//
-// This class allows to control stdin/out/err pipe redirection and takes care
-// of keeping all the pipes pumped (stdin) / drained (stdout/err), in a similar
-// fashion of python's subprocess.Communicate()
-// stdin: is always piped and closed once the |args.input| buffer is written.
-// stdout/err can be either:
-//   - dup()ed onto the parent process stdout/err.
-//   - redirected onto /dev/null.
-//   - piped onto a buffer (see output() method). There is only one output
-//     buffer in total. If both stdout and stderr are set to kBuffer mode, they
-//     will be merged onto the same. There doesn't seem any use case where they
-//     are needed distinctly.
-//
-// Some caveats worth mentioning:
-// - It always waitpid()s, to avoid leaving zombies around. If the process is
-//   not terminated by the time the destructor is reached, the dtor will
-//   send a SIGKILL and wait for the termination.
-// - After fork()-ing it will close all file descriptors, preserving only
-//   stdin/out/err and the fds listed in |args.preserve_fds|.
-// - On Linux/Android, the child process will be SIGKILL-ed if the calling
-//   thread exists, even if the Subprocess is std::move()-d onto another thread.
-//   This happens by virtue PR_SET_PDEATHSIG, which is used to avoid that
-//   child processes are leaked in the case of a crash of the parent (frequent
-//   in tests). However, the child process might still be leaked if execing
-//   a setuid/setgid binary (see man 2 prctl).
-//
-// Usage:
-// base::Subprocess p({"/bin/cat", "-"});
-// (or equivalently:
-//     base::Subprocess p;
-//     p.args.exec_cmd.push_back("/bin/cat");
-//     p.args.exec_cmd.push_back("-");
-//  )
-// p.args.stdout_mode = base::Subprocess::kBuffer;
-// p.args.stderr_mode = base::Subprocess::kInherit;
-// p.args.input = "stdin contents";
-// p.Call();
-// (or equivalently:
-//     p.Start();
-//     p.Wait();
-// )
-// EXPECT_EQ(p.status(), base::Subprocess::kTerminated);
-// EXPECT_EQ(p.returncode(), 0);
-class Subprocess {
- public:
-  enum Status {
-    kNotStarted = 0,  // Before calling Start() or Call().
-    kRunning,         // After calling Start(), before Wait().
-    kTerminated,      // The subprocess terminated, either successfully or not.
-                      // This includes crashes or other signals on UNIX.
-  };
-
-  enum OutputMode {
-    kInherit = 0,  // Inherit's the caller process stdout/stderr.
-    kDevNull,      // dup() onto /dev/null
-    kBuffer,       // dup() onto a pipe and move it into the output() buffer.
-    kFd,           // dup() onto the passed args.fd.
-  };
-
-  // Input arguments for configuring the subprocess behavior.
-  struct Args {
-    Args(std::initializer_list<std::string> _cmd = {}) : exec_cmd(_cmd) {}
-    Args(Args&&) noexcept;
-    Args& operator=(Args&&);
-    // If non-empty this will cause an exec() when Start()/Call() are called.
-    std::vector<std::string> exec_cmd;
-
-#if !PERFETTO_BUILDFLAG(PERFETTO_OS_WIN)
-    // If non-empty, it changes the argv[0] argument passed to exec. If
-    // unset, argv[0] == exec_cmd[0]. This is to handle cases like:
-    // exec_cmd = {"/proc/self/exec"}, argv0: "my_custom_test_override".
-    std::string posix_argv0_override_for_testing;
-
-    // If non-empty this will be invoked on the fork()-ed child process, after
-    // stdin/out/err has been redirected and all other file descriptor are
-    // closed. It is valid to specify both |exec_cmd| AND
-    // |posix_entrypoint_for_testing|. In this case the latter will be invoked
-    // just before the exec() call, but after having closed all fds % stdin/o/e.
-    // This is for synchronization barriers in tests.
-    std::function<void()> posix_entrypoint_for_testing;
-#endif
-
-    // If non-empty, replaces the environment passed to exec().
-    std::vector<std::string> env;
-
-    // The file descriptors in this list will not be closed.
-    std::vector<int> preserve_fds;
-
-    // The data to push in the child process stdin.
-    std::string input;
-
-    OutputMode stdout_mode = kInherit;
-    OutputMode stderr_mode = kInherit;
-
-    base::ScopedPlatformHandle out_fd;
-
-    // Returns " ".join(exec_cmd), quoting arguments.
-    std::string GetCmdString() const;
-  };
-
-  struct ResourceUsage {
-    uint32_t cpu_utime_ms = 0;
-    uint32_t cpu_stime_ms = 0;
-    uint32_t max_rss_kb = 0;
-    uint32_t min_page_faults = 0;
-    uint32_t maj_page_faults = 0;
-    uint32_t vol_ctx_switch = 0;
-    uint32_t invol_ctx_switch = 0;
-
-    uint32_t cpu_time_ms() const { return cpu_utime_ms + cpu_stime_ms; }
-  };
-
-  explicit Subprocess(std::initializer_list<std::string> exec_cmd = {});
-  Subprocess(Subprocess&&) noexcept;
-  Subprocess& operator=(Subprocess&&);
-  ~Subprocess();  // It will KillAndWaitForTermination() if still alive.
-
-  // Starts the subprocess but doesn't wait for its termination. The caller
-  // is expected to either call Wait() or Poll() after this call.
-  void Start();
-
-  // Wait for process termination. Can be called more than once.
-  // Args:
-  //   |timeout_ms| = 0: wait indefinitely.
-  //   |timeout_ms| > 0: wait for at most |timeout_ms|.
-  // Returns:
-  //  True: The process terminated. See status() and returncode().
-  //  False: Timeout reached, the process is still running. In this case the
-  //         process will be left in the kRunning state.
-  bool Wait(int timeout_ms = 0);
-
-  // Equivalent of Start() + Wait();
-  // Returns true if the process exited cleanly with return code 0. False in
-  // any othe case.
-  bool Call(int timeout_ms = 0);
-
-  Status Poll();
-
-  // Sends a signal (SIGKILL if not specified) and wait for process termination.
-  void KillAndWaitForTermination(int sig_num = 0);
-
-  PlatformProcessId pid() const { return s_->pid; }
-
-  // The accessors below are updated only after a call to Poll(), Wait() or
-  // KillAndWaitForTermination().
-  // In most cases you want to call Poll() rather than these accessors.
-
-  Status status() const { return s_->status; }
-  int returncode() const { return s_->returncode; }
-  bool timed_out() const { return s_->timed_out; }
-
-  // This contains both stdout and stderr (if the corresponding _mode ==
-  // kBuffer). It's non-const so the caller can std::move() it.
-  std::string& output() { return s_->output; }
-  const std::string& output() const { return s_->output; }
-
-  const ResourceUsage& posix_rusage() const { return *s_->rusage; }
-
-  Args args;
-
- private:
-  // The signal/exit code used when killing the process in case of a timeout.
-  static const int kTimeoutSignal;
-
-  Subprocess(const Subprocess&) = delete;
-  Subprocess& operator=(const Subprocess&) = delete;
-
-  // This is to deal robustly with the move operators, without having to
-  // manually maintain member-wise move instructions.
-  struct MovableState {
-    base::Pipe stdin_pipe;
-    base::Pipe stdouterr_pipe;
-    PlatformProcessId pid;
-    Status status = kNotStarted;
-    int returncode = -1;
-    std::string output;  // Stdin+stderr. Only when kBuffer.
-    std::unique_ptr<ResourceUsage> rusage{new ResourceUsage()};
-    bool timed_out = false;
-#if PERFETTO_BUILDFLAG(PERFETTO_OS_WIN)
-    std::thread stdouterr_thread;
-    std::thread stdin_thread;
-    ScopedPlatformHandle win_proc_handle;
-    ScopedPlatformHandle win_thread_handle;
-
-    base::EventFd stdouterr_done_event;
-    std::mutex mutex;  // Protects locked_outerr_buf and the two pipes.
-    std::string locked_outerr_buf;
-#else
-    base::Pipe exit_status_pipe;
-    size_t input_written = 0;
-    std::thread waitpid_thread;
-#endif
-  };
-
-#if PERFETTO_BUILDFLAG(PERFETTO_OS_WIN)
-  static void StdinThread(MovableState*, std::string input);
-  static void StdoutErrThread(MovableState*);
-#else
-  void TryPushStdin();
-  void TryReadStdoutAndErr();
-  void TryReadExitStatus();
-  void KillAtMostOnce();
-  bool PollInternal(int poll_timeout_ms);
-#endif
-
-  std::unique_ptr<MovableState> s_;
-};
-
-}  // namespace base
-}  // namespace perfetto
-
-#endif  // INCLUDE_PERFETTO_EXT_BASE_SUBPROCESS_H_
-/*
- * Copyright (C) 2020 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-// gen_amalgamated expanded: #include "perfetto/ext/base/subprocess.h"
-
-#include <tuple>
-
-// This file contains only the common bits (ctors / dtors / move operators).
-// The rest lives in subprocess_posix.cc and subprocess_windows.cc.
-
-namespace perfetto {
-namespace base {
-
-Subprocess::Args::Args(Args&&) noexcept = default;
-Subprocess::Args& Subprocess::Args::operator=(Args&&) = default;
-
-Subprocess::Subprocess(std::initializer_list<std::string> a)
-    : args(a), s_(new MovableState()) {}
-
-Subprocess::Subprocess(Subprocess&& other) noexcept {
-  static_assert(sizeof(Subprocess) ==
-                    sizeof(std::tuple<std::unique_ptr<MovableState>, Args>),
-                "base::Subprocess' move ctor needs updating");
-  s_ = std::move(other.s_);
-  args = std::move(other.args);
-
-  // Reset the state of the moved-from object.
-  other.s_.reset(new MovableState());
-  other.~Subprocess();
-  new (&other) Subprocess();
-}
-
-Subprocess& Subprocess::operator=(Subprocess&& other) {
-  this->~Subprocess();
-  new (this) Subprocess(std::move(other));
-  return *this;
-}
-
-Subprocess::~Subprocess() {
-  if (s_->status == kRunning)
-    KillAndWaitForTermination();
-}
-
-bool Subprocess::Call(int timeout_ms) {
-  PERFETTO_CHECK(s_->status == kNotStarted);
-  Start();
-
-  if (!Wait(timeout_ms)) {
-    s_->timed_out = true;
-    KillAndWaitForTermination(kTimeoutSignal);
-  }
-  PERFETTO_DCHECK(s_->status != kRunning);
-  return s_->status == kTerminated && s_->returncode == 0;
-}
-
-std::string Subprocess::Args::GetCmdString() const {
-  std::string str;
-  for (size_t i = 0; i < exec_cmd.size(); i++) {
-    str += i > 0 ? " \"" : "";
-    str += exec_cmd[i];
-    str += i > 0 ? "\"" : "";
-  }
-  return str;
-}
-
-}  // namespace base
-}  // namespace perfetto
-// gen_amalgamated begin source: src/base/subprocess_posix.cc
-/*
- * Copyright (C) 2020 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-// gen_amalgamated expanded: #include "perfetto/ext/base/subprocess.h"
-
-// gen_amalgamated expanded: #include "perfetto/base/build_config.h"
-
-#if PERFETTO_BUILDFLAG(PERFETTO_OS_LINUX) ||   \
-    PERFETTO_BUILDFLAG(PERFETTO_OS_ANDROID) || \
-    PERFETTO_BUILDFLAG(PERFETTO_OS_APPLE)
-
-#include <fcntl.h>
-#include <poll.h>
-#include <signal.h>
-#include <stdio.h>
-#include <sys/resource.h>
-#include <sys/types.h>
-#include <sys/wait.h>
-#include <unistd.h>
-
-#include <algorithm>
-#include <thread>
-#include <tuple>
-
-#if PERFETTO_BUILDFLAG(PERFETTO_OS_LINUX) || \
-    PERFETTO_BUILDFLAG(PERFETTO_OS_ANDROID)
-#include <sys/prctl.h>
-#endif
-
-// gen_amalgamated expanded: #include "perfetto/base/logging.h"
-// gen_amalgamated expanded: #include "perfetto/base/time.h"
-// gen_amalgamated expanded: #include "perfetto/ext/base/utils.h"
-
-// In MacOS this is not defined in any header.
-extern "C" char** environ;
-
-namespace perfetto {
-namespace base {
-
-namespace {
-
-struct ChildProcessArgs {
-  Subprocess::Args* create_args;
-  const char* exec_cmd = nullptr;
-  std::vector<char*> argv;
-  std::vector<char*> env;
-  int stdin_pipe_rd = -1;
-  int stdouterr_pipe_wr = -1;
-};
-
-// Don't add any dynamic allocation in this function. This will be invoked
-// under a fork(), potentially in a state where the allocator lock is held.
-void __attribute__((noreturn)) ChildProcess(ChildProcessArgs* args) {
-#if PERFETTO_BUILDFLAG(PERFETTO_OS_LINUX) || \
-    PERFETTO_BUILDFLAG(PERFETTO_OS_ANDROID)
-  // In no case we want a child process to outlive its parent process. This is
-  // relevant for tests, so that a test failure/crash doesn't leave child
-  // processes around that get reparented to init.
-  prctl(PR_SET_PDEATHSIG, SIGKILL);
-#endif
-
-  auto die = [args](const char* err) __attribute__((noreturn)) {
-    base::ignore_result(write(args->stdouterr_pipe_wr, err, strlen(err)));
-    base::ignore_result(write(args->stdouterr_pipe_wr, "\n", 1));
-    // From https://www.gnu.org/software/libc/manual/html_node/Exit-Status.html
-    // "In particular, the value 128 is used to indicate failure to execute
-    // another program in a subprocess. This convention is not universally
-    // obeyed, but it is a good idea to follow it in your programs."
-    _exit(128);
-  };
-
-  auto set_fd_close_on_exec = [&die](int fd, bool close_on_exec) {
-    int flags = fcntl(fd, F_GETFD, 0);
-    if (flags < 0)
-      die("fcntl(F_GETFD) failed");
-    flags = close_on_exec ? (flags | FD_CLOEXEC) : (flags & ~FD_CLOEXEC);
-    if (fcntl(fd, F_SETFD, flags) < 0)
-      die("fcntl(F_SETFD) failed");
-  };
-
-  if (getppid() == 1)
-    die("terminating because parent process died");
-
-  if (dup2(args->stdin_pipe_rd, STDIN_FILENO) == -1)
-    die("Failed to dup2(STDIN)");
-  close(args->stdin_pipe_rd);
-
-  switch (args->create_args->stdout_mode) {
-    case Subprocess::kInherit:
-      break;
-    case Subprocess::kDevNull: {
-      if (dup2(open("/dev/null", O_RDWR), STDOUT_FILENO) == -1)
-        die("Failed to dup2(STDOUT)");
-      break;
-    }
-    case Subprocess::kBuffer:
-      if (dup2(args->stdouterr_pipe_wr, STDOUT_FILENO) == -1)
-        die("Failed to dup2(STDOUT)");
-      break;
-    case Subprocess::kFd:
-      if (dup2(*args->create_args->out_fd, STDOUT_FILENO) == -1)
-        die("Failed to dup2(STDOUT)");
-      break;
-  }
-
-  switch (args->create_args->stderr_mode) {
-    case Subprocess::kInherit:
-      break;
-    case Subprocess::kDevNull: {
-      if (dup2(open("/dev/null", O_RDWR), STDERR_FILENO) == -1)
-        die("Failed to dup2(STDERR)");
-      break;
-    }
-    case Subprocess::kBuffer:
-      if (dup2(args->stdouterr_pipe_wr, STDERR_FILENO) == -1)
-        die("Failed to dup2(STDERR)");
-      break;
-    case Subprocess::kFd:
-      if (dup2(*args->create_args->out_fd, STDERR_FILENO) == -1)
-        die("Failed to dup2(STDERR)");
-      break;
-  }
-
-  // Close all FDs % stdin/out/err and the ones that the client explicitly
-  // asked to retain. The reason for this is twofold:
-  // 1. For exec-only (i.e. entrypoint == empty) cases: it avoids leaking FDs
-  //    that didn't get marked as O_CLOEXEC by accident.
-  // 2. In fork() mode (entrypoint not empty) avoids retaining a dup of eventfds
-  //    that would prevent the parent process to receive EOFs (tests usually use
-  //    pipes as a synchronization mechanism between subprocesses).
-  const auto& preserve_fds = args->create_args->preserve_fds;
-  for (int i = 0; i < 512; i++) {
-    if (i != STDIN_FILENO && i != STDERR_FILENO && i != STDOUT_FILENO &&
-        i != args->stdouterr_pipe_wr &&
-        !std::count(preserve_fds.begin(), preserve_fds.end(), i)) {
-      close(i);
-    }
-  }
-
-  // Clears O_CLOEXEC from stdin/out/err. These are the only FDs that we want
-  // to be preserved after the exec().
-  set_fd_close_on_exec(STDIN_FILENO, false);
-  set_fd_close_on_exec(STDOUT_FILENO, false);
-  set_fd_close_on_exec(STDERR_FILENO, false);
-
-  // If the caller specified a std::function entrypoint, run that first.
-  if (args->create_args->posix_entrypoint_for_testing)
-    args->create_args->posix_entrypoint_for_testing();
-
-  // If the caller specified only an entrypoint, without any args, exit now.
-  // Otherwise proceed with the exec() below.
-  if (!args->exec_cmd)
-    _exit(0);
-
-  // If |args[0]| is a path use execv() (which takes a path), othewise use
-  // exevp(), which uses the shell and follows PATH.
-  if (strchr(args->exec_cmd, '/')) {
-    char** env = args->env.empty() ? environ : args->env.data();
-    execve(args->exec_cmd, args->argv.data(), env);
-  } else {
-    // There is no execvpe() on Mac.
-    if (!args->env.empty())
-      die("A full path is required for |exec_cmd| when setting |env|");
-    execvp(args->exec_cmd, args->argv.data());
-  }
-
-  // Reached only if execv fails.
-  die("execve() failed");
-}
-
-}  // namespace
-
-// static
-const int Subprocess::kTimeoutSignal = SIGKILL;
-
-void Subprocess::Start() {
-  ChildProcessArgs proc_args;
-  proc_args.create_args = &args;
-
-  // Setup argv.
-  if (!args.exec_cmd.empty()) {
-    proc_args.exec_cmd = args.exec_cmd[0].c_str();
-    for (const std::string& arg : args.exec_cmd)
-      proc_args.argv.push_back(const_cast<char*>(arg.c_str()));
-    proc_args.argv.push_back(nullptr);
-
-    if (!args.posix_argv0_override_for_testing.empty()) {
-      proc_args.argv[0] =
-          const_cast<char*>(args.posix_argv0_override_for_testing.c_str());
-    }
-  }
-
-  // Setup env.
-  if (!args.env.empty()) {
-    for (const std::string& str : args.env)
-      proc_args.env.push_back(const_cast<char*>(str.c_str()));
-    proc_args.env.push_back(nullptr);
-  }
-
-  // Setup the pipes for stdin/err redirection.
-  s_->stdin_pipe = base::Pipe::Create(base::Pipe::kWrNonBlock);
-  proc_args.stdin_pipe_rd = *s_->stdin_pipe.rd;
-  s_->stdouterr_pipe = base::Pipe::Create(base::Pipe::kRdNonBlock);
-  proc_args.stdouterr_pipe_wr = *s_->stdouterr_pipe.wr;
-
-  // Spawn the child process that will exec().
-  s_->pid = fork();
-  PERFETTO_CHECK(s_->pid >= 0);
-  if (s_->pid == 0) {
-    // Close the parent-ends of the pipes.
-    s_->stdin_pipe.wr.reset();
-    s_->stdouterr_pipe.rd.reset();
-    ChildProcess(&proc_args);
-    // ChildProcess() doesn't return, not even in case of failures.
-    PERFETTO_FATAL("not reached");
-  }
-
-  s_->status = kRunning;
-
-  // Close the child-end of the pipes.
-  // Deliberately NOT closing the s_->stdin_pipe.rd. This is to avoid crashing
-  // with a SIGPIPE if the process exits without consuming its stdin, while
-  // the parent tries to write() on the other end of the stdin pipe.
-  s_->stdouterr_pipe.wr.reset();
-  proc_args.create_args->out_fd.reset();
-
-  // Spawn a thread that is blocked on waitpid() and writes the termination
-  // status onto a pipe. The problem here is that waipid() doesn't have a
-  // timeout option and can't be passed to poll(). The alternative would be
-  // using a SIGCHLD handler, but anecdotally signal handlers introduce more
-  // problems than what they solve.
-  s_->exit_status_pipe = base::Pipe::Create(base::Pipe::kRdNonBlock);
-
-  // Both ends of the pipe are closed after the thread.join().
-  int pid = s_->pid;
-  int exit_status_pipe_wr = s_->exit_status_pipe.wr.release();
-  auto* rusage = s_->rusage.get();
-  s_->waitpid_thread = std::thread([pid, exit_status_pipe_wr, rusage] {
-    int pid_stat = -1;
-    struct rusage usg {};
-    int wait_res = PERFETTO_EINTR(wait4(pid, &pid_stat, 0, &usg));
-    PERFETTO_CHECK(wait_res == pid);
-
-    auto tv_to_ms = [](const struct timeval& tv) {
-      return static_cast<uint32_t>(tv.tv_sec * 1000 + tv.tv_usec / 1000);
-    };
-    rusage->cpu_utime_ms = tv_to_ms(usg.ru_utime);
-    rusage->cpu_stime_ms = tv_to_ms(usg.ru_stime);
-    rusage->max_rss_kb = static_cast<uint32_t>(usg.ru_maxrss) / 1000;
-    rusage->min_page_faults = static_cast<uint32_t>(usg.ru_minflt);
-    rusage->maj_page_faults = static_cast<uint32_t>(usg.ru_majflt);
-    rusage->vol_ctx_switch = static_cast<uint32_t>(usg.ru_nvcsw);
-    rusage->invol_ctx_switch = static_cast<uint32_t>(usg.ru_nivcsw);
-
-    base::ignore_result(PERFETTO_EINTR(
-        write(exit_status_pipe_wr, &pid_stat, sizeof(pid_stat))));
-    PERFETTO_CHECK(close(exit_status_pipe_wr) == 0 || errno == EINTR);
-  });
-}
-
-Subprocess::Status Subprocess::Poll() {
-  if (s_->status != kRunning)
-    return s_->status;  // Nothing to poll.
-  while (PollInternal(0 /* don't block*/)) {
-  }
-  return s_->status;
-}
-
-// |timeout_ms| semantic:
-//   -1: Block indefinitely.
-//    0: Don't block, return immediately.
-//   >0: Block for at most X ms.
-// Returns:
-//  True: Read at least one fd (so there might be more queued).
-//  False: if all fds reached quiescent (no data to read/write).
-bool Subprocess::PollInternal(int poll_timeout_ms) {
-  struct pollfd fds[3]{};
-  size_t num_fds = 0;
-  if (s_->exit_status_pipe.rd) {
-    fds[num_fds].fd = *s_->exit_status_pipe.rd;
-    fds[num_fds].events = POLLIN;
-    num_fds++;
-  }
-  if (s_->stdouterr_pipe.rd) {
-    fds[num_fds].fd = *s_->stdouterr_pipe.rd;
-    fds[num_fds].events = POLLIN;
-    num_fds++;
-  }
-  if (s_->stdin_pipe.wr) {
-    fds[num_fds].fd = *s_->stdin_pipe.wr;
-    fds[num_fds].events = POLLOUT;
-    num_fds++;
-  }
-
-  if (num_fds == 0)
-    return false;
-
-  auto nfds = static_cast<nfds_t>(num_fds);
-  int poll_res = PERFETTO_EINTR(poll(fds, nfds, poll_timeout_ms));
-  PERFETTO_CHECK(poll_res >= 0);
-
-  TryReadStdoutAndErr();
-  TryPushStdin();
-  TryReadExitStatus();
-
-  return poll_res > 0;
-}
-
-bool Subprocess::Wait(int timeout_ms) {
-  PERFETTO_CHECK(s_->status != kNotStarted);
-
-  // Break out of the loop only after both conditions are satisfied:
-  // - All stdout/stderr data has been read (if kBuffer).
-  // - The process exited.
-  // Note that the two events can happen arbitrary order. After the process
-  // exits, there might be still data in the pipe buffer, which we want to
-  // read fully.
-  //
-  // Instead, don't wait on the stdin to be fully written. The child process
-  // might exit prematurely (or crash). If that happens, we can end up in a
-  // state where the write(stdin_pipe_.wr) will never unblock.
-
-  const int64_t t_start = base::GetWallTimeMs().count();
-  while (s_->exit_status_pipe.rd || s_->stdouterr_pipe.rd) {
-    int poll_timeout_ms = -1;  // Block until a FD is ready.
-    if (timeout_ms > 0) {
-      const int64_t now = GetWallTimeMs().count();
-      poll_timeout_ms = timeout_ms - static_cast<int>(now - t_start);
-      if (poll_timeout_ms <= 0)
-        return false;
-    }
-    PollInternal(poll_timeout_ms);
-  }  // while(...)
-  return true;
-}
-
-void Subprocess::TryReadExitStatus() {
-  if (!s_->exit_status_pipe.rd)
-    return;
-
-  int pid_stat = -1;
-  int64_t rsize = PERFETTO_EINTR(
-      read(*s_->exit_status_pipe.rd, &pid_stat, sizeof(pid_stat)));
-  if (rsize < 0 && errno == EAGAIN)
-    return;
-
-  if (rsize > 0) {
-    PERFETTO_CHECK(rsize == sizeof(pid_stat));
-  } else if (rsize < 0) {
-    PERFETTO_PLOG("Subprocess read(s_->exit_status_pipe) failed");
-  }
-  s_->waitpid_thread.join();
-  s_->exit_status_pipe.rd.reset();
-
-  s_->status = kTerminated;
-  if (WIFEXITED(pid_stat)) {
-    s_->returncode = WEXITSTATUS(pid_stat);
-  } else if (WIFSIGNALED(pid_stat)) {
-    s_->returncode = 128 + WTERMSIG(pid_stat);  // Follow bash convention.
-  } else {
-    PERFETTO_FATAL("waitpid() returned an unexpected value (0x%x)", pid_stat);
-  }
-}
-
-// If the stidn pipe is still open, push input data and close it at the end.
-void Subprocess::TryPushStdin() {
-  if (!s_->stdin_pipe.wr)
-    return;
-
-  PERFETTO_DCHECK(args.input.empty() || s_->input_written < args.input.size());
-  if (!args.input.empty()) {
-    int64_t wsize =
-        PERFETTO_EINTR(write(*s_->stdin_pipe.wr, &args.input[s_->input_written],
-                             args.input.size() - s_->input_written));
-    if (wsize < 0 && errno == EAGAIN)
-      return;
-
-    if (wsize >= 0) {
-      // Whether write() can return 0 is one of the greatest mysteries of UNIX.
-      // Just ignore it.
-      s_->input_written += static_cast<size_t>(wsize);
-    } else {
-      PERFETTO_PLOG("Subprocess write(stdin) failed");
-      s_->stdin_pipe.wr.reset();
-    }
-  }
-  PERFETTO_DCHECK(s_->input_written <= args.input.size());
-  if (s_->input_written == args.input.size())
-    s_->stdin_pipe.wr.reset();  // Close stdin.
-}
-
-void Subprocess::TryReadStdoutAndErr() {
-  if (!s_->stdouterr_pipe.rd)
-    return;
-  char buf[4096];
-  int64_t rsize =
-      PERFETTO_EINTR(read(*s_->stdouterr_pipe.rd, buf, sizeof(buf)));
-  if (rsize < 0 && errno == EAGAIN)
-    return;
-
-  if (rsize > 0) {
-    s_->output.append(buf, static_cast<size_t>(rsize));
-  } else if (rsize == 0 /* EOF */) {
-    s_->stdouterr_pipe.rd.reset();
-  } else {
-    PERFETTO_PLOG("Subprocess read(stdout/err) failed");
-    s_->stdouterr_pipe.rd.reset();
-  }
-}
-
-void Subprocess::KillAndWaitForTermination(int sig_num) {
-  kill(s_->pid, sig_num ? sig_num : SIGKILL);
-  Wait();
-  // TryReadExitStatus must have joined the thread.
-  PERFETTO_DCHECK(!s_->waitpid_thread.joinable());
-}
-
-}  // namespace base
-}  // namespace perfetto
-
-#endif  // PERFETTO_OS_LINUX || PERFETTO_OS_ANDROID || PERFETTO_OS_APPLE
-// gen_amalgamated begin source: src/base/subprocess_windows.cc
-/*
- * Copyright (C) 2020 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-// gen_amalgamated expanded: #include "perfetto/ext/base/subprocess.h"
-
-// gen_amalgamated expanded: #include "perfetto/base/build_config.h"
-
-#if PERFETTO_BUILDFLAG(PERFETTO_OS_WIN)
-
-#include <stdio.h>
-
-#include <algorithm>
-#include <mutex>
-#include <tuple>
-
-#include <Windows.h>
-
-// gen_amalgamated expanded: #include "perfetto/base/logging.h"
-// gen_amalgamated expanded: #include "perfetto/base/time.h"
-// gen_amalgamated expanded: #include "perfetto/ext/base/pipe.h"
-// gen_amalgamated expanded: #include "perfetto/ext/base/utils.h"
-
-namespace perfetto {
-namespace base {
-
-// static
-const int Subprocess::kTimeoutSignal = static_cast<int>(STATUS_TIMEOUT);
-
-void Subprocess::Start() {
-  if (args.exec_cmd.empty()) {
-    PERFETTO_ELOG("Subprocess.exec_cmd cannot be empty on Windows");
-    return;
-  }
-
-  // Quote arguments but only when ambiguous. When quoting, CreateProcess()
-  // assumes that the command is an absolute path and does not search in the
-  // %PATH%. If non quoted, instead, CreateProcess() tries both. This is to
-  // allow Subprocess("cmd.exe", "/c", "shell command").
-  std::string cmd;
-  for (const auto& part : args.exec_cmd) {
-    if (part.find(" ") != std::string::npos) {
-      cmd += "\"" + part + "\" ";
-    } else {
-      cmd += part + " ";
-    }
-  }
-  // Remove trailing space.
-  if (!cmd.empty())
-    cmd.resize(cmd.size() - 1);
-
-  s_->stdin_pipe = Pipe::Create();
-  // Allow the child process to inherit the other end of the pipe.
-  PERFETTO_CHECK(
-      ::SetHandleInformation(*s_->stdin_pipe.rd, HANDLE_FLAG_INHERIT, 1));
-
-  if (args.stderr_mode == kBuffer || args.stdout_mode == kBuffer) {
-    s_->stdouterr_pipe = Pipe::Create();
-    PERFETTO_CHECK(
-        ::SetHandleInformation(*s_->stdouterr_pipe.wr, HANDLE_FLAG_INHERIT, 1));
-  }
-
-  ScopedPlatformHandle nul_handle;
-  if (args.stderr_mode == kDevNull || args.stdout_mode == kDevNull) {
-    nul_handle.reset(::CreateFileA("NUL", GENERIC_WRITE, FILE_SHARE_WRITE,
-                                   nullptr, OPEN_EXISTING,
-                                   FILE_ATTRIBUTE_NORMAL, nullptr));
-    PERFETTO_CHECK(::SetHandleInformation(*nul_handle, HANDLE_FLAG_INHERIT, 1));
-  }
-
-  PROCESS_INFORMATION proc_info{};
-  STARTUPINFOA start_info{};
-  start_info.cb = sizeof(STARTUPINFOA);
-
-  if (args.stderr_mode == kInherit) {
-    start_info.hStdError = ::GetStdHandle(STD_ERROR_HANDLE);
-  } else if (args.stderr_mode == kBuffer) {
-    start_info.hStdError = *s_->stdouterr_pipe.wr;
-  } else if (args.stderr_mode == kDevNull) {
-    start_info.hStdError = *nul_handle;
-  } else if (args.stderr_mode == kFd) {
-    PERFETTO_CHECK(
-        ::SetHandleInformation(*args.out_fd, HANDLE_FLAG_INHERIT, 1));
-    start_info.hStdError = *args.out_fd;
-  } else {
-    PERFETTO_CHECK(false);
-  }
-
-  if (args.stdout_mode == kInherit) {
-    start_info.hStdOutput = ::GetStdHandle(STD_OUTPUT_HANDLE);
-  } else if (args.stdout_mode == kBuffer) {
-    start_info.hStdOutput = *s_->stdouterr_pipe.wr;
-  } else if (args.stdout_mode == kDevNull) {
-    start_info.hStdOutput = *nul_handle;
-  } else if (args.stdout_mode == kFd) {
-    PERFETTO_CHECK(
-        ::SetHandleInformation(*args.out_fd, HANDLE_FLAG_INHERIT, 1));
-    start_info.hStdOutput = *args.out_fd;
-  } else {
-    PERFETTO_CHECK(false);
-  }
-
-  start_info.hStdInput = *s_->stdin_pipe.rd;
-  start_info.dwFlags |= STARTF_USESTDHANDLES;
-
-  // Create the child process.
-  bool success =
-      ::CreateProcessA(nullptr,      // App name. Needs to be null to use PATH.
-                       &cmd[0],      // Command line.
-                       nullptr,      // Process security attributes.
-                       nullptr,      // Primary thread security attributes.
-                       true,         // Handles are inherited.
-                       0,            // Flags.
-                       nullptr,      // Use parent's environment.
-                       nullptr,      // Use parent's current directory.
-                       &start_info,  // STARTUPINFO pointer.
-                       &proc_info);  // Receives PROCESS_INFORMATION.
-
-  // Close on our side the pipe ends that we passed to the child process.
-  s_->stdin_pipe.rd.reset();
-  s_->stdouterr_pipe.wr.reset();
-  args.out_fd.reset();
-
-  if (!success) {
-    s_->returncode = ERROR_FILE_NOT_FOUND;
-    s_->status = kTerminated;
-    s_->stdin_pipe.wr.reset();
-    s_->stdouterr_pipe.rd.reset();
-    PERFETTO_ELOG("CreateProcess failed: %lx, cmd: %s", GetLastError(),
-                  &cmd[0]);
-    return;
-  }
-
-  s_->pid = proc_info.dwProcessId;
-  s_->win_proc_handle = ScopedPlatformHandle(proc_info.hProcess);
-  s_->win_thread_handle = ScopedPlatformHandle(proc_info.hThread);
-  s_->status = kRunning;
-
-  MovableState* s = s_.get();
-  s_->stdin_thread = std::thread(&Subprocess::StdinThread, s, args.input);
-
-  if (args.stderr_mode == kBuffer || args.stdout_mode == kBuffer) {
-    PERFETTO_DCHECK(s_->stdouterr_pipe.rd);
-    s_->stdouterr_thread = std::thread(&Subprocess::StdoutErrThread, s);
-  }
-}
-
-// static
-void Subprocess::StdinThread(MovableState* s, std::string input) {
-  size_t input_written = 0;
-  while (input_written < input.size()) {
-    DWORD wsize = 0;
-    if (::WriteFile(*s->stdin_pipe.wr, input.data() + input_written,
-                    static_cast<DWORD>(input.size() - input_written), &wsize,
-                    nullptr)) {
-      input_written += wsize;
-    } else {
-      // ERROR_BROKEN_PIPE is WAI when the child just closes stdin and stops
-      // accepting input.
-      auto err = ::GetLastError();
-      if (err != ERROR_BROKEN_PIPE)
-        PERFETTO_PLOG("Subprocess WriteFile(stdin) failed %lx", err);
-      break;
-    }
-  }  // while(...)
-  std::unique_lock<std::mutex> lock(s->mutex);
-  s->stdin_pipe.wr.reset();
-}
-
-// static
-void Subprocess::StdoutErrThread(MovableState* s) {
-  char buf[4096];
-  for (;;) {
-    DWORD rsize = 0;
-    bool res =
-        ::ReadFile(*s->stdouterr_pipe.rd, buf, sizeof(buf), &rsize, nullptr);
-    if (!res) {
-      auto err = GetLastError();
-      if (err != ERROR_BROKEN_PIPE)
-        PERFETTO_PLOG("Subprocess ReadFile(stdouterr) failed %ld", err);
-    }
-
-    if (rsize > 0) {
-      std::unique_lock<std::mutex> lock(s->mutex);
-      s->locked_outerr_buf.append(buf, static_cast<size_t>(rsize));
-    } else {  // EOF or some error.
-      break;
-    }
-  }  // For(..)
-
-  // Close the stdouterr_pipe. The main loop looks at the pipe closure to
-  // determine whether the stdout/err thread has completed.
-  {
-    std::unique_lock<std::mutex> lock(s->mutex);
-    s->stdouterr_pipe.rd.reset();
-  }
-  s->stdouterr_done_event.Notify();
-}
-
-Subprocess::Status Subprocess::Poll() {
-  if (s_->status != kRunning)
-    return s_->status;  // Nothing to poll.
-  Wait(1 /*ms*/);
-  return s_->status;
-}
-
-bool Subprocess::Wait(int timeout_ms) {
-  PERFETTO_CHECK(s_->status != kNotStarted);
-  const bool wait_forever = timeout_ms == 0;
-  const int64_t wait_start_ms = base::GetWallTimeMs().count();
-
-  // Break out of the loop only after both conditions are satisfied:
-  // - All stdout/stderr data has been read (if kBuffer).
-  // - The process exited.
-  // Note that the two events can happen arbitrary order. After the process
-  // exits, there might be still data in the pipe buffer, which we want to
-  // read fully.
-  // Note also that stdout/err might be "complete" before starting, if neither
-  // is operating in kBuffer mode. In that case we just want to wait for the
-  // process termination.
-  //
-  // Instead, don't wait on the stdin to be fully written. The child process
-  // might exit prematurely (or crash). If that happens, we can end up in a
-  // state where the write(stdin_pipe_.wr) will never unblock.
-  bool stdouterr_complete = false;
-  for (;;) {
-    HANDLE wait_handles[2]{};
-    DWORD num_handles = 0;
-
-    // Check if the process exited.
-    bool process_exited = !s_->win_proc_handle;
-    if (!process_exited) {
-      DWORD exit_code = STILL_ACTIVE;
-      PERFETTO_CHECK(::GetExitCodeProcess(*s_->win_proc_handle, &exit_code));
-      if (exit_code != STILL_ACTIVE) {
-        s_->returncode = static_cast<int>(exit_code);
-        s_->status = kTerminated;
-        s_->win_proc_handle.reset();
-        s_->win_thread_handle.reset();
-        process_exited = true;
-      }
-    } else {
-      PERFETTO_DCHECK(s_->status != kRunning);
-    }
-    if (!process_exited) {
-      wait_handles[num_handles++] = *s_->win_proc_handle;
-    }
-
-    // Check if there is more output and if the stdout/err pipe has been closed.
-    {
-      std::unique_lock<std::mutex> lock(s_->mutex);
-      // Move the output from the internal buffer shared with the
-      // stdouterr_thread to the final buffer exposed to the client.
-      if (!s_->locked_outerr_buf.empty()) {
-        s_->output.append(std::move(s_->locked_outerr_buf));
-        s_->locked_outerr_buf.clear();
-      }
-      stdouterr_complete = !s_->stdouterr_pipe.rd;
-      if (!stdouterr_complete) {
-        wait_handles[num_handles++] = s_->stdouterr_done_event.fd();
-      }
-    }  // lock(s_->mutex)
-
-    if (num_handles == 0) {
-      PERFETTO_DCHECK(process_exited && stdouterr_complete);
-      break;
-    }
-
-    DWORD wait_ms;  // Note: DWORD is unsigned.
-    if (wait_forever) {
-      wait_ms = INFINITE;
-    } else {
-      const int64_t now = GetWallTimeMs().count();
-      const int64_t wait_left_ms = timeout_ms - (now - wait_start_ms);
-      if (wait_left_ms <= 0)
-        return false;  // Timed out
-      wait_ms = static_cast<DWORD>(wait_left_ms);
-    }
-
-    auto wait_res =
-        ::WaitForMultipleObjects(num_handles, wait_handles, false, wait_ms);
-    PERFETTO_CHECK(wait_res != WAIT_FAILED);
-  }
-
-  PERFETTO_DCHECK(!s_->win_proc_handle);
-  PERFETTO_DCHECK(!s_->win_thread_handle);
-
-  if (s_->stdin_thread.joinable())  // Might not exist if CreateProcess failed.
-    s_->stdin_thread.join();
-  if (s_->stdouterr_thread.joinable())
-    s_->stdouterr_thread.join();
-
-  // The stdin pipe is closed by the dedicated stdin thread. However if that is
-  // not started (e.g. because of no redirection) force close it now. Needs to
-  // happen after the join() to be thread safe.
-  s_->stdin_pipe.wr.reset();
-  s_->stdouterr_pipe.rd.reset();
-
-  return true;
-}
-
-void Subprocess::KillAndWaitForTermination(int exit_code) {
-  auto code = exit_code ? static_cast<DWORD>(exit_code) : STATUS_CONTROL_C_EXIT;
-  ::TerminateProcess(*s_->win_proc_handle, code);
-  Wait();
-  // TryReadExitStatus must have joined the threads.
-  PERFETTO_DCHECK(!s_->stdin_thread.joinable());
-  PERFETTO_DCHECK(!s_->stdouterr_thread.joinable());
-}
-
-}  // namespace base
-}  // namespace perfetto
-
-#endif  // PERFETTO_OS_WIN
-// gen_amalgamated begin source: src/protozero/field.cc
-/*
- * Copyright (C) 2019 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-// gen_amalgamated expanded: #include "perfetto/protozero/field.h"
-
-// gen_amalgamated expanded: #include "perfetto/base/compiler.h"
-// gen_amalgamated expanded: #include "perfetto/base/logging.h"
-
-#if !PERFETTO_IS_LITTLE_ENDIAN()
-// The memcpy() for fixed32/64 below needs to be adjusted if we want to
-// support big endian CPUs. There doesn't seem to be a compelling need today.
-#error Unimplemented for big endian archs.
-#endif
-
-namespace protozero {
-
-template <typename Container>
-void Field::SerializeAndAppendToInternal(Container* dst) const {
-  namespace pu = proto_utils;
-  size_t initial_size = dst->size();
-  dst->resize(initial_size + pu::kMaxSimpleFieldEncodedSize + size_);
-  uint8_t* start = reinterpret_cast<uint8_t*>(&(*dst)[initial_size]);
-  uint8_t* wptr = start;
-  switch (type_) {
-    case static_cast<int>(pu::ProtoWireType::kVarInt): {
-      wptr = pu::WriteVarInt(pu::MakeTagVarInt(id_), wptr);
-      wptr = pu::WriteVarInt(int_value_, wptr);
-      break;
-    }
-    case static_cast<int>(pu::ProtoWireType::kFixed32): {
-      wptr = pu::WriteVarInt(pu::MakeTagFixed<uint32_t>(id_), wptr);
-      uint32_t value32 = static_cast<uint32_t>(int_value_);
-      memcpy(wptr, &value32, sizeof(value32));
-      wptr += sizeof(uint32_t);
-      break;
-    }
-    case static_cast<int>(pu::ProtoWireType::kFixed64): {
-      wptr = pu::WriteVarInt(pu::MakeTagFixed<uint64_t>(id_), wptr);
-      memcpy(wptr, &int_value_, sizeof(int_value_));
-      wptr += sizeof(uint64_t);
-      break;
-    }
-    case static_cast<int>(pu::ProtoWireType::kLengthDelimited): {
-      ConstBytes payload = as_bytes();
-      wptr = pu::WriteVarInt(pu::MakeTagLengthDelimited(id_), wptr);
-      wptr = pu::WriteVarInt(payload.size, wptr);
-      memcpy(wptr, payload.data, payload.size);
-      wptr += payload.size;
-      break;
-    }
-    default:
-      PERFETTO_FATAL("Unknown field type %u", type_);
-  }
-  size_t written_size = static_cast<size_t>(wptr - start);
-  PERFETTO_DCHECK(written_size > 0 && written_size < pu::kMaxMessageLength);
-  PERFETTO_DCHECK(initial_size + written_size <= dst->size());
-  dst->resize(initial_size + written_size);
-}
-
-void Field::SerializeAndAppendTo(std::string* dst) const {
-  SerializeAndAppendToInternal(dst);
-}
-
-void Field::SerializeAndAppendTo(std::vector<uint8_t>* dst) const {
-  SerializeAndAppendToInternal(dst);
-}
-
-}  // namespace protozero
-// gen_amalgamated begin source: src/protozero/message.cc
-/*
- * Copyright (C) 2017 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-// gen_amalgamated expanded: #include "perfetto/protozero/message.h"
-
-#include <atomic>
-#include <type_traits>
-
-// gen_amalgamated expanded: #include "perfetto/base/compiler.h"
-// gen_amalgamated expanded: #include "perfetto/base/logging.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/message_arena.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/message_handle.h"
-
-#if !PERFETTO_IS_LITTLE_ENDIAN()
-// The memcpy() for float and double below needs to be adjusted if we want to
-// support big endian CPUs. There doesn't seem to be a compelling need today.
-#error Unimplemented for big endian archs.
-#endif
-
-namespace protozero {
-
-namespace {
-
-#if PERFETTO_DCHECK_IS_ON()
-std::atomic<uint32_t> g_generation;
-#endif
-
-}  // namespace
-
-// Do NOT put any code in the constructor or use default initialization.
-// Use the Reset() method below instead.
-
-// This method is called to initialize both root and nested messages.
-void Message::Reset(ScatteredStreamWriter* stream_writer, MessageArena* arena) {
-// Older versions of libstdcxx don't have is_trivially_constructible.
-#if !defined(__GLIBCXX__) || __GLIBCXX__ >= 20170516
-  static_assert(std::is_trivially_constructible<Message>::value,
-                "Message must be trivially constructible");
-#endif
-
-  static_assert(std::is_trivially_destructible<Message>::value,
-                "Message must be trivially destructible");
-  stream_writer_ = stream_writer;
-  arena_ = arena;
-  size_ = 0;
-  size_field_ = nullptr;
-  size_already_written_ = 0;
-  nested_message_ = nullptr;
-  finalized_ = false;
-#if PERFETTO_DCHECK_IS_ON()
-  handle_ = nullptr;
-  generation_ = g_generation.fetch_add(1, std::memory_order_relaxed);
-#endif
-}
-
-void Message::AppendString(uint32_t field_id, const char* str) {
-  AppendBytes(field_id, str, strlen(str));
-}
-
-void Message::AppendBytes(uint32_t field_id, const void* src, size_t size) {
-  if (nested_message_)
-    EndNestedMessage();
-
-  PERFETTO_DCHECK(size < proto_utils::kMaxMessageLength);
-  // Write the proto preamble (field id, type and length of the field).
-  uint8_t buffer[proto_utils::kMaxSimpleFieldEncodedSize];
-  uint8_t* pos = buffer;
-  pos = proto_utils::WriteVarInt(proto_utils::MakeTagLengthDelimited(field_id),
-                                 pos);
-  pos = proto_utils::WriteVarInt(static_cast<uint32_t>(size), pos);
-  WriteToStream(buffer, pos);
-
-  const uint8_t* src_u8 = reinterpret_cast<const uint8_t*>(src);
-  WriteToStream(src_u8, src_u8 + size);
-}
-
-size_t Message::AppendScatteredBytes(uint32_t field_id,
-                                     ContiguousMemoryRange* ranges,
-                                     size_t num_ranges) {
-  size_t size = 0;
-  for (size_t i = 0; i < num_ranges; ++i) {
-    size += ranges[i].size();
-  }
-
-  PERFETTO_DCHECK(size < proto_utils::kMaxMessageLength);
-
-  uint8_t buffer[proto_utils::kMaxSimpleFieldEncodedSize];
-  uint8_t* pos = buffer;
-  pos = proto_utils::WriteVarInt(proto_utils::MakeTagLengthDelimited(field_id),
-                                 pos);
-  pos = proto_utils::WriteVarInt(static_cast<uint32_t>(size), pos);
-  WriteToStream(buffer, pos);
-
-  for (size_t i = 0; i < num_ranges; ++i) {
-    auto& range = ranges[i];
-    WriteToStream(range.begin, range.end);
-  }
-
-  return size;
-}
-
-uint32_t Message::Finalize() {
-  if (finalized_)
-    return size_;
-
-  if (nested_message_)
-    EndNestedMessage();
-
-  // Write the length of the nested message a posteriori, using a leading-zero
-  // redundant varint encoding.
-  if (size_field_) {
-    PERFETTO_DCHECK(!finalized_);
-    PERFETTO_DCHECK(size_ < proto_utils::kMaxMessageLength);
-    PERFETTO_DCHECK(size_ >= size_already_written_);
-    proto_utils::WriteRedundantVarInt(size_ - size_already_written_,
-                                      size_field_);
-    size_field_ = nullptr;
-  }
-
-  finalized_ = true;
-#if PERFETTO_DCHECK_IS_ON()
-  if (handle_)
-    handle_->reset_message();
-#endif
-
-  return size_;
-}
-
-Message* Message::BeginNestedMessageInternal(uint32_t field_id) {
-  if (nested_message_)
-    EndNestedMessage();
-
-  // Write the proto preamble for the nested message.
-  uint8_t data[proto_utils::kMaxTagEncodedSize];
-  uint8_t* data_end = proto_utils::WriteVarInt(
-      proto_utils::MakeTagLengthDelimited(field_id), data);
-  WriteToStream(data, data_end);
-
-  Message* message = arena_->NewMessage();
-  message->Reset(stream_writer_, arena_);
-
-  // The length of the nested message cannot be known upfront. So right now
-  // just reserve the bytes to encode the size after the nested message is done.
-  message->set_size_field(
-      stream_writer_->ReserveBytes(proto_utils::kMessageLengthFieldSize));
-  size_ += proto_utils::kMessageLengthFieldSize;
-
-  nested_message_ = message;
-  return message;
-}
-
-void Message::EndNestedMessage() {
-  size_ += nested_message_->Finalize();
-  arena_->DeleteLastMessage(nested_message_);
-  nested_message_ = nullptr;
-}
-
-}  // namespace protozero
-// gen_amalgamated begin source: src/protozero/message_arena.cc
-/*
- * Copyright (C) 2020 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-// gen_amalgamated expanded: #include "perfetto/protozero/message_arena.h"
-
-#include <atomic>
-#include <type_traits>
-
-// gen_amalgamated expanded: #include "perfetto/base/logging.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/message_handle.h"
-
-namespace protozero {
-
-MessageArena::MessageArena() {
-  // The code below assumes that there is always at least one block.
-  blocks_.emplace_front();
-  static_assert(std::alignment_of<decltype(blocks_.back().storage[0])>::value >=
-                    alignof(Message),
-                "MessageArea's storage is not properly aligned");
-}
-
-MessageArena::~MessageArena() = default;
-
-Message* MessageArena::NewMessage() {
-  PERFETTO_DCHECK(!blocks_.empty());  // Should never become empty.
-
-  Block* block = &blocks_.back();
-  if (PERFETTO_UNLIKELY(block->entries >= Block::kCapacity)) {
-    blocks_.emplace_back();
-    block = &blocks_.back();
-  }
-  const auto idx = block->entries++;
-  void* storage = &block->storage[idx];
-  PERFETTO_ASAN_UNPOISON(storage, sizeof(Message));
-  return new (storage) Message();
-}
-
-void MessageArena::DeleteLastMessageInternal() {
-  PERFETTO_DCHECK(!blocks_.empty());  // Should never be empty, see below.
-  Block* block = &blocks_.back();
-  PERFETTO_DCHECK(block->entries > 0);
-
-  // This is the reason why there is no ~Message() call here.
-  // MessageArea::Reset() (see header) also relies on dtor being trivial.
-  static_assert(std::is_trivially_destructible<Message>::value,
-                "Message must be trivially destructible");
-
-  --block->entries;
-  PERFETTO_ASAN_POISON(&block->storage[block->entries], sizeof(Message));
-
-  // Don't remove the first block to avoid malloc/free calls when the root
-  // message is reset. Hitting the allocator all the times is a waste of time.
-  if (block->entries == 0 && blocks_.size() > 1) {
-    blocks_.pop_back();
-  }
-}
-
-}  // namespace protozero
-// gen_amalgamated begin source: src/protozero/message_handle.cc
-/*
- * Copyright (C) 2017 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-// gen_amalgamated expanded: #include "perfetto/protozero/message_handle.h"
-
-#include <utility>
-
-// gen_amalgamated expanded: #include "perfetto/protozero/message.h"
-
-namespace protozero {
-
-MessageHandleBase::MessageHandleBase(Message* message) : message_(message) {
-#if PERFETTO_DCHECK_IS_ON()
-  generation_ = message_ ? message->generation_ : 0;
-  if (message_)
-    message_->set_handle(this);
-#endif
-}
-
-MessageHandleBase::~MessageHandleBase() {
-  if (message_) {
-#if PERFETTO_DCHECK_IS_ON()
-    PERFETTO_DCHECK(generation_ == message_->generation_);
-#endif
-    FinalizeMessage();
-  }
-}
-
-MessageHandleBase::MessageHandleBase(MessageHandleBase&& other) noexcept {
-  Move(std::move(other));
-}
-
-MessageHandleBase& MessageHandleBase::operator=(MessageHandleBase&& other) {
-  // If the current handle was pointing to a message and is being reset to a new
-  // one, finalize the old message. However, if the other message is the same as
-  // the one we point to, don't finalize.
-  if (message_ && message_ != other.message_)
-    FinalizeMessage();
-  Move(std::move(other));
-  return *this;
-}
-
-void MessageHandleBase::Move(MessageHandleBase&& other) {
-  message_ = other.message_;
-  other.message_ = nullptr;
-#if PERFETTO_DCHECK_IS_ON()
-  if (message_) {
-    generation_ = message_->generation_;
-    message_->set_handle(this);
-  }
-#endif
-}
-
-}  // namespace protozero
-// gen_amalgamated begin source: src/protozero/packed_repeated_fields.cc
-/*
- * Copyright (C) 2017 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-// gen_amalgamated expanded: #include "perfetto/protozero/packed_repeated_fields.h"
-
-// gen_amalgamated expanded: #include "perfetto/ext/base/utils.h"
-
-namespace protozero {
-
-// static
-constexpr size_t PackedBufferBase::kOnStackStorageSize;
-
-void PackedBufferBase::GrowSlowpath() {
-  size_t write_off = static_cast<size_t>(write_ptr_ - storage_begin_);
-  size_t old_size = static_cast<size_t>(storage_end_ - storage_begin_);
-  size_t new_size = old_size < 65536 ? (old_size * 2) : (old_size * 3 / 2);
-  new_size = perfetto::base::AlignUp<4096>(new_size);
-  std::unique_ptr<uint8_t[]> new_buf(new uint8_t[new_size]);
-  memcpy(new_buf.get(), storage_begin_, old_size);
-  heap_buf_ = std::move(new_buf);
-  storage_begin_ = heap_buf_.get();
-  storage_end_ = storage_begin_ + new_size;
-  write_ptr_ = storage_begin_ + write_off;
-}
-
-void PackedBufferBase::Reset() {
-  heap_buf_.reset();
-  storage_begin_ = reinterpret_cast<uint8_t*>(&stack_buf_[0]);
-  storage_end_ = reinterpret_cast<uint8_t*>(&stack_buf_[kOnStackStorageSize]);
-  write_ptr_ = storage_begin_;
-}
-
-}  // namespace protozero
-// gen_amalgamated begin source: src/protozero/proto_decoder.cc
-/*
- * Copyright (C) 2018 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-// gen_amalgamated expanded: #include "perfetto/protozero/proto_decoder.h"
-
-#include <string.h>
-#include <limits>
-
-// gen_amalgamated expanded: #include "perfetto/base/compiler.h"
-// gen_amalgamated expanded: #include "perfetto/base/logging.h"
-// gen_amalgamated expanded: #include "perfetto/ext/base/utils.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/proto_utils.h"
-
-namespace protozero {
-
-using namespace proto_utils;
-
-#if !PERFETTO_IS_LITTLE_ENDIAN()
-#error Unimplemented for big endian archs.
-#endif
-
-namespace {
-
-struct ParseFieldResult {
-  enum ParseResult { kAbort, kSkip, kOk };
-  ParseResult parse_res;
-  const uint8_t* next;
-  Field field;
-};
-
-// Parses one field and returns the field itself and a pointer to the next
-// field to parse. If parsing fails, the returned |next| == |buffer|.
-PERFETTO_ALWAYS_INLINE ParseFieldResult
-ParseOneField(const uint8_t* const buffer, const uint8_t* const end) {
-  ParseFieldResult res{ParseFieldResult::kAbort, buffer, Field{}};
-
-  // The first byte of a proto field is structured as follows:
-  // The least 3 significant bits determine the field type.
-  // The most 5 significant bits determine the field id. If MSB == 1, the
-  // field id continues on the next bytes following the VarInt encoding.
-  const uint8_t kFieldTypeNumBits = 3;
-  const uint64_t kFieldTypeMask = (1 << kFieldTypeNumBits) - 1;  // 0000 0111;
-  const uint8_t* pos = buffer;
-
-  // If we've already hit the end, just return an invalid field.
-  if (PERFETTO_UNLIKELY(pos >= end))
-    return res;
-
-  uint64_t preamble = 0;
-  if (PERFETTO_LIKELY(*pos < 0x80)) {  // Fastpath for fields with ID < 16.
-    preamble = *(pos++);
-  } else {
-    const uint8_t* next = ParseVarInt(pos, end, &preamble);
-    if (PERFETTO_UNLIKELY(pos == next))
-      return res;
-    pos = next;
-  }
-
-  uint32_t field_id = static_cast<uint32_t>(preamble >> kFieldTypeNumBits);
-  if (field_id == 0 || pos >= end)
-    return res;
-
-  auto field_type = static_cast<uint8_t>(preamble & kFieldTypeMask);
-  const uint8_t* new_pos = pos;
-  uint64_t int_value = 0;
-  uint64_t size = 0;
-
-  switch (field_type) {
-    case static_cast<uint8_t>(ProtoWireType::kVarInt): {
-      new_pos = ParseVarInt(pos, end, &int_value);
-
-      // new_pos not being greater than pos means ParseVarInt could not fully
-      // parse the number. This is because we are out of space in the buffer.
-      // Set the id to zero and return but don't update the offset so a future
-      // read can read this field.
-      if (PERFETTO_UNLIKELY(new_pos == pos))
-        return res;
-
-      break;
-    }
-
-    case static_cast<uint8_t>(ProtoWireType::kLengthDelimited): {
-      uint64_t payload_length;
-      new_pos = ParseVarInt(pos, end, &payload_length);
-      if (PERFETTO_UNLIKELY(new_pos == pos))
-        return res;
-
-      // ParseVarInt guarantees that |new_pos| <= |end| when it succeeds;
-      if (payload_length > static_cast<uint64_t>(end - new_pos))
-        return res;
-
-      const uintptr_t payload_start = reinterpret_cast<uintptr_t>(new_pos);
-      int_value = payload_start;
-      size = payload_length;
-      new_pos += payload_length;
-      break;
-    }
-
-    case static_cast<uint8_t>(ProtoWireType::kFixed64): {
-      new_pos = pos + sizeof(uint64_t);
-      if (PERFETTO_UNLIKELY(new_pos > end))
-        return res;
-      memcpy(&int_value, pos, sizeof(uint64_t));
-      break;
-    }
-
-    case static_cast<uint8_t>(ProtoWireType::kFixed32): {
-      new_pos = pos + sizeof(uint32_t);
-      if (PERFETTO_UNLIKELY(new_pos > end))
-        return res;
-      memcpy(&int_value, pos, sizeof(uint32_t));
-      break;
-    }
-
-    default:
-      PERFETTO_DLOG("Invalid proto field type: %u", field_type);
-      return res;
-  }
-
-  res.next = new_pos;
-
-  if (PERFETTO_UNLIKELY(field_id > std::numeric_limits<uint16_t>::max())) {
-    PERFETTO_DLOG("Skipping field %" PRIu32 " because its id > 0xFFFF",
-                  field_id);
-    res.parse_res = ParseFieldResult::kSkip;
-    return res;
-  }
-
-  if (PERFETTO_UNLIKELY(size > proto_utils::kMaxMessageLength)) {
-    PERFETTO_DLOG("Skipping field %" PRIu32 " because it's too big (%" PRIu64
-                  " KB)",
-                  field_id, size / 1024);
-    res.parse_res = ParseFieldResult::kSkip;
-    return res;
-  }
-
-  res.parse_res = ParseFieldResult::kOk;
-  res.field.initialize(static_cast<uint16_t>(field_id), field_type, int_value,
-                       static_cast<uint32_t>(size));
-  return res;
-}
-
-}  // namespace
-
-Field ProtoDecoder::FindField(uint32_t field_id) {
-  Field res{};
-  auto old_position = read_ptr_;
-  read_ptr_ = begin_;
-  for (auto f = ReadField(); f.valid(); f = ReadField()) {
-    if (f.id() == field_id) {
-      res = f;
-      break;
-    }
-  }
-  read_ptr_ = old_position;
-  return res;
-}
-
-PERFETTO_ALWAYS_INLINE
-Field ProtoDecoder::ReadField() {
-  ParseFieldResult res;
-  do {
-    res = ParseOneField(read_ptr_, end_);
-    read_ptr_ = res.next;
-  } while (PERFETTO_UNLIKELY(res.parse_res == ParseFieldResult::kSkip));
-  return res.field;
-}
-
-void TypedProtoDecoderBase::ParseAllFields() {
-  const uint8_t* cur = begin_;
-  ParseFieldResult res;
-  for (;;) {
-    res = ParseOneField(cur, end_);
-    PERFETTO_DCHECK(res.parse_res != ParseFieldResult::kOk || res.next != cur);
-    cur = res.next;
-    if (PERFETTO_UNLIKELY(res.parse_res == ParseFieldResult::kSkip)) {
-      continue;
-    } else if (PERFETTO_UNLIKELY(res.parse_res == ParseFieldResult::kAbort)) {
-      break;
-    }
-    PERFETTO_DCHECK(res.parse_res == ParseFieldResult::kOk);
-    PERFETTO_DCHECK(res.field.valid());
-    auto field_id = res.field.id();
-    if (PERFETTO_UNLIKELY(field_id >= num_fields_))
-      continue;
-
-    Field* fld = &fields_[field_id];
-    if (PERFETTO_LIKELY(!fld->valid())) {
-      // This is the first time we see this field.
-      *fld = std::move(res.field);
-    } else {
-      // Repeated field case.
-      // In this case we need to:
-      // 1. Append the last value of the field to end of the repeated field
-      //    storage.
-      // 2. Replace the default instance at offset |field_id| with the current
-      //    value. This is because in case of repeated field a call to Get(X) is
-      //    supposed to return the last value of X, not the first one.
-      // This is so that the RepeatedFieldIterator will iterate in the right
-      // order, see comments on RepeatedFieldIterator.
-      if (PERFETTO_UNLIKELY(size_ >= capacity_)) {
-        ExpandHeapStorage();
-        // ExpandHeapStorage moves fields_ so we need to update the ptr to fld:
-        fld = &fields_[field_id];
-        PERFETTO_DCHECK(size_ < capacity_);
-      }
-      fields_[size_++] = *fld;
-      *fld = std::move(res.field);
-    }
-  }
-  read_ptr_ = res.next;
-}
-
-void TypedProtoDecoderBase::ExpandHeapStorage() {
-  uint32_t new_capacity = capacity_ * 2;
-  PERFETTO_CHECK(new_capacity > size_);
-  std::unique_ptr<Field[]> new_storage(new Field[new_capacity]);
-
-  static_assert(std::is_trivially_copyable<Field>::value,
-                "Field must be trivially copyable");
-  memcpy(&new_storage[0], fields_, sizeof(Field) * size_);
-
-  heap_storage_ = std::move(new_storage);
-  fields_ = &heap_storage_[0];
-  capacity_ = new_capacity;
-}
-
-}  // namespace protozero
-// gen_amalgamated begin source: src/protozero/scattered_heap_buffer.cc
-/*
- * Copyright (C) 2017 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-// gen_amalgamated expanded: #include "perfetto/protozero/scattered_heap_buffer.h"
-
-#include <algorithm>
-
-namespace protozero {
-
-ScatteredHeapBuffer::Slice::Slice()
-    : buffer_(nullptr), size_(0u), unused_bytes_(0u) {}
-
-ScatteredHeapBuffer::Slice::Slice(size_t size)
-    : buffer_(std::unique_ptr<uint8_t[]>(new uint8_t[size])),
-      size_(size),
-      unused_bytes_(size) {
-  PERFETTO_DCHECK(size);
-  Clear();
-}
-
-ScatteredHeapBuffer::Slice::Slice(Slice&& slice) noexcept = default;
-
-ScatteredHeapBuffer::Slice::~Slice() = default;
-
-ScatteredHeapBuffer::Slice& ScatteredHeapBuffer::Slice::operator=(Slice&&) =
-    default;
-
-void ScatteredHeapBuffer::Slice::Clear() {
-  unused_bytes_ = size_;
-#if PERFETTO_DCHECK_IS_ON()
-  memset(start(), 0xff, size_);
-#endif  // PERFETTO_DCHECK_IS_ON()
-}
-
-ScatteredHeapBuffer::ScatteredHeapBuffer(size_t initial_slice_size_bytes,
-                                         size_t maximum_slice_size_bytes)
-    : next_slice_size_(initial_slice_size_bytes),
-      maximum_slice_size_(maximum_slice_size_bytes) {
-  PERFETTO_DCHECK(next_slice_size_ && maximum_slice_size_);
-  PERFETTO_DCHECK(maximum_slice_size_ >= initial_slice_size_bytes);
-}
-
-ScatteredHeapBuffer::~ScatteredHeapBuffer() = default;
-
-protozero::ContiguousMemoryRange ScatteredHeapBuffer::GetNewBuffer() {
-  PERFETTO_CHECK(writer_);
-  AdjustUsedSizeOfCurrentSlice();
-
-  if (cached_slice_.start()) {
-    slices_.push_back(std::move(cached_slice_));
-    PERFETTO_DCHECK(!cached_slice_.start());
-  } else {
-    slices_.emplace_back(next_slice_size_);
-  }
-  next_slice_size_ = std::min(maximum_slice_size_, next_slice_size_ * 2);
-  return slices_.back().GetTotalRange();
-}
-
-const std::vector<ScatteredHeapBuffer::Slice>&
-ScatteredHeapBuffer::GetSlices() {
-  AdjustUsedSizeOfCurrentSlice();
-  return slices_;
-}
-
-std::vector<uint8_t> ScatteredHeapBuffer::StitchSlices() {
-  size_t stitched_size = 0u;
-  const auto& slices = GetSlices();
-  for (const auto& slice : slices)
-    stitched_size += slice.size() - slice.unused_bytes();
-
-  std::vector<uint8_t> buffer;
-  buffer.reserve(stitched_size);
-  for (const auto& slice : slices) {
-    auto used_range = slice.GetUsedRange();
-    buffer.insert(buffer.end(), used_range.begin, used_range.end);
-  }
-  return buffer;
-}
-
-std::vector<protozero::ContiguousMemoryRange> ScatteredHeapBuffer::GetRanges() {
-  std::vector<protozero::ContiguousMemoryRange> ranges;
-  for (const auto& slice : GetSlices())
-    ranges.push_back(slice.GetUsedRange());
-  return ranges;
-}
-
-void ScatteredHeapBuffer::AdjustUsedSizeOfCurrentSlice() {
-  if (!slices_.empty())
-    slices_.back().set_unused_bytes(writer_->bytes_available());
-}
-
-size_t ScatteredHeapBuffer::GetTotalSize() {
-  size_t total_size = 0;
-  for (auto& slice : slices_) {
-    total_size += slice.size();
-  }
-  return total_size;
-}
-
-void ScatteredHeapBuffer::Reset() {
-  if (slices_.empty())
-    return;
-  cached_slice_ = std::move(slices_.front());
-  cached_slice_.Clear();
-  slices_.clear();
-}
-
-}  // namespace protozero
-// gen_amalgamated begin source: src/protozero/scattered_stream_null_delegate.cc
-// gen_amalgamated begin header: include/perfetto/protozero/scattered_stream_null_delegate.h
-/*
- * Copyright (C) 2018 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef INCLUDE_PERFETTO_PROTOZERO_SCATTERED_STREAM_NULL_DELEGATE_H_
-#define INCLUDE_PERFETTO_PROTOZERO_SCATTERED_STREAM_NULL_DELEGATE_H_
-
-#include <memory>
-#include <vector>
-
-// gen_amalgamated expanded: #include "perfetto/base/export.h"
-// gen_amalgamated expanded: #include "perfetto/base/logging.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/contiguous_memory_range.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/scattered_stream_writer.h"
-
-namespace protozero {
-
-class PERFETTO_EXPORT ScatteredStreamWriterNullDelegate
-    : public ScatteredStreamWriter::Delegate {
- public:
-  explicit ScatteredStreamWriterNullDelegate(size_t chunk_size);
-  ~ScatteredStreamWriterNullDelegate() override;
-
-  // protozero::ScatteredStreamWriter::Delegate implementation.
-  ContiguousMemoryRange GetNewBuffer() override;
-
- private:
-  const size_t chunk_size_;
-  std::unique_ptr<uint8_t[]> chunk_;
-};
-
-}  // namespace protozero
-
-#endif  // INCLUDE_PERFETTO_PROTOZERO_SCATTERED_STREAM_NULL_DELEGATE_H_
-/*
- * Copyright (C) 2018 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-// gen_amalgamated expanded: #include "perfetto/protozero/scattered_stream_null_delegate.h"
-
-namespace protozero {
-
-// An implementation of ScatteredStreamWriter::Delegate which always returns
-// the same piece of memory.
-// This is used when we need to no-op the writers (e.g. during teardown or in
-// case of resource exhaustion), avoiding that the clients have to deal with
-// nullptr checks.
-ScatteredStreamWriterNullDelegate::ScatteredStreamWriterNullDelegate(
-    size_t chunk_size)
-    : chunk_size_(chunk_size),
-      chunk_(std::unique_ptr<uint8_t[]>(new uint8_t[chunk_size_])) {}
-
-ScatteredStreamWriterNullDelegate::~ScatteredStreamWriterNullDelegate() {}
-
-ContiguousMemoryRange ScatteredStreamWriterNullDelegate::GetNewBuffer() {
-  return {chunk_.get(), chunk_.get() + chunk_size_};
-}
-
-}  // namespace protozero
-// gen_amalgamated begin source: src/protozero/scattered_stream_writer.cc
-/*
- * Copyright (C) 2017 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-// gen_amalgamated expanded: #include "perfetto/protozero/scattered_stream_writer.h"
-
-#include <algorithm>
-
-// gen_amalgamated expanded: #include "perfetto/base/logging.h"
-
-namespace protozero {
-
-ScatteredStreamWriter::Delegate::~Delegate() {}
-
-ScatteredStreamWriter::ScatteredStreamWriter(Delegate* delegate)
-    : delegate_(delegate),
-      cur_range_({nullptr, nullptr}),
-      write_ptr_(nullptr) {}
-
-ScatteredStreamWriter::~ScatteredStreamWriter() {}
-
-void ScatteredStreamWriter::Reset(ContiguousMemoryRange range) {
-  written_previously_ += static_cast<uint64_t>(write_ptr_ - cur_range_.begin);
-  cur_range_ = range;
-  write_ptr_ = range.begin;
-  PERFETTO_DCHECK(!write_ptr_ || write_ptr_ < cur_range_.end);
-}
-
-void ScatteredStreamWriter::Extend() {
-  Reset(delegate_->GetNewBuffer());
-}
-
-void ScatteredStreamWriter::WriteBytesSlowPath(const uint8_t* src,
-                                               size_t size) {
-  size_t bytes_left = size;
-  while (bytes_left > 0) {
-    if (write_ptr_ >= cur_range_.end)
-      Extend();
-    const size_t burst_size = std::min(bytes_available(), bytes_left);
-    WriteBytesUnsafe(src, burst_size);
-    bytes_left -= burst_size;
-    src += burst_size;
-  }
-}
-
-// TODO(primiano): perf optimization: I suspect that at the end this will always
-// be called with |size| == 4, in which case we might just hardcode it.
-uint8_t* ScatteredStreamWriter::ReserveBytes(size_t size) {
-  if (write_ptr_ + size > cur_range_.end) {
-    // Assume the reservations are always < Delegate::GetNewBuffer().size(),
-    // so that one single call to Extend() will definitely give enough headroom.
-    Extend();
-    PERFETTO_DCHECK(write_ptr_ + size <= cur_range_.end);
-  }
-  uint8_t* begin = write_ptr_;
-  write_ptr_ += size;
-#if PERFETTO_DCHECK_IS_ON()
-  memset(begin, 0, size);
-#endif
-  return begin;
-}
-
-}  // namespace protozero
-// gen_amalgamated begin source: src/protozero/static_buffer.cc
-// gen_amalgamated begin header: include/perfetto/protozero/static_buffer.h
-/*
- * Copyright (C) 2019 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef INCLUDE_PERFETTO_PROTOZERO_STATIC_BUFFER_H_
-#define INCLUDE_PERFETTO_PROTOZERO_STATIC_BUFFER_H_
-
-#include <memory>
-#include <string>
-#include <vector>
-
-// gen_amalgamated expanded: #include "perfetto/base/export.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/root_message.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/scattered_stream_writer.h"
-
-namespace protozero {
-
-class Message;
-
-// A simple implementation of ScatteredStreamWriter::Delegate backed by a
-// fixed-size buffer. It doesn't support expansion. The caller needs to ensure
-// to never write more than the size of the buffer. Will CHECK() otherwise.
-class PERFETTO_EXPORT StaticBufferDelegate
-    : public ScatteredStreamWriter::Delegate {
- public:
-  StaticBufferDelegate(uint8_t* buf, size_t len) : range_{buf, buf + len} {}
-  ~StaticBufferDelegate() override;
-
-  // ScatteredStreamWriter::Delegate implementation.
-  ContiguousMemoryRange GetNewBuffer() override;
-
-  ContiguousMemoryRange const range_;
-  bool get_new_buffer_called_once_ = false;
-};
-
-// Helper function to create protozero messages backed by a fixed-size buffer
-// in one line. You can write:
-//   protozero::Static<protozero::MyMessage> msg(buf.data(), buf.size());
-//   msg->set_stuff(...);
-//   size_t bytes_encoded = msg.Finalize();
-template <typename T /* protozero::Message */>
-class StaticBuffered {
- public:
-  StaticBuffered(void* buf, size_t len)
-      : delegate_(reinterpret_cast<uint8_t*>(buf), len), writer_(&delegate_) {
-    msg_.Reset(&writer_);
-  }
-
-  // This can't be neither copied nor moved because Message hands out pointers
-  // to itself when creating submessages.
-  StaticBuffered(const StaticBuffered&) = delete;
-  StaticBuffered& operator=(const StaticBuffered&) = delete;
-  StaticBuffered(StaticBuffered&&) = delete;
-  StaticBuffered& operator=(StaticBuffered&&) = delete;
-
-  T* get() { return &msg_; }
-  T* operator->() { return &msg_; }
-
-  // The lack of a size() method is deliberate. It's to prevent that one
-  // accidentally calls size() before Finalize().
-
-  // Returns the number of encoded bytes (<= the size passed in the ctor).
-  size_t Finalize() {
-    msg_.Finalize();
-    return static_cast<size_t>(writer_.write_ptr() - delegate_.range_.begin);
-  }
-
- private:
-  StaticBufferDelegate delegate_;
-  ScatteredStreamWriter writer_;
-  RootMessage<T> msg_;
-};
-
-// Helper function to create stack-based protozero messages in one line.
-// You can write:
-//   protozero::StackBuffered<protozero::MyMessage, 16> msg;
-//   msg->set_stuff(...);
-//   size_t bytes_encoded = msg.Finalize();
-template <typename T /* protozero::Message */, size_t N>
-class StackBuffered : public StaticBuffered<T> {
- public:
-  StackBuffered() : StaticBuffered<T>(&buf_[0], N) {}
-
- private:
-  uint8_t buf_[N];  // Deliberately not initialized.
-};
-
-}  // namespace protozero
-
-#endif  // INCLUDE_PERFETTO_PROTOZERO_STATIC_BUFFER_H_
-/*
- * Copyright (C) 2019 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-// gen_amalgamated expanded: #include "perfetto/protozero/static_buffer.h"
-
-// gen_amalgamated expanded: #include "perfetto/base/logging.h"
-
-namespace protozero {
-
-StaticBufferDelegate::~StaticBufferDelegate() = default;
-
-ContiguousMemoryRange StaticBufferDelegate::GetNewBuffer() {
-  if (get_new_buffer_called_once_) {
-    // This is the 2nd time GetNewBuffer is called. The estimate is wrong. We
-    // shouldn't try to grow the buffer after the initial call.
-    PERFETTO_FATAL("Static buffer too small");
-  }
-  get_new_buffer_called_once_ = true;
-  return range_;
-}
-
-}  // namespace protozero
-// gen_amalgamated begin source: src/protozero/virtual_destructors.cc
-/*
- * Copyright (C) 2019 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-// gen_amalgamated expanded: #include "perfetto/protozero/cpp_message_obj.h"
-
-namespace protozero {
-
-CppMessageObj::~CppMessageObj() = default;
-
-}  // namespace protozero
-// gen_amalgamated begin source: gen/protos/perfetto/common/android_energy_consumer_descriptor.gen.cc
-// gen_amalgamated begin header: gen/protos/perfetto/common/android_energy_consumer_descriptor.gen.h
-// DO NOT EDIT. Autogenerated by Perfetto cppgen_plugin
-#ifndef PERFETTO_PROTOS_PROTOS_PERFETTO_COMMON_ANDROID_ENERGY_CONSUMER_DESCRIPTOR_PROTO_CPP_H_
-#define PERFETTO_PROTOS_PROTOS_PERFETTO_COMMON_ANDROID_ENERGY_CONSUMER_DESCRIPTOR_PROTO_CPP_H_
-
-#include <stdint.h>
-#include <bitset>
-#include <vector>
-#include <string>
-#include <type_traits>
-
-// gen_amalgamated expanded: #include "perfetto/protozero/cpp_message_obj.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/copyable_ptr.h"
-// gen_amalgamated expanded: #include "perfetto/base/export.h"
-
-namespace perfetto {
-namespace protos {
-namespace gen {
-class AndroidEnergyConsumerDescriptor;
-class AndroidEnergyConsumer;
-}  // namespace perfetto
-}  // namespace protos
-}  // namespace gen
-
-namespace protozero {
-class Message;
-}  // namespace protozero
-
-namespace perfetto {
-namespace protos {
-namespace gen {
-
-class PERFETTO_EXPORT AndroidEnergyConsumerDescriptor : public ::protozero::CppMessageObj {
- public:
-  enum FieldNumbers {
-    kEnergyConsumersFieldNumber = 1,
-  };
-
-  AndroidEnergyConsumerDescriptor();
-  ~AndroidEnergyConsumerDescriptor() override;
-  AndroidEnergyConsumerDescriptor(AndroidEnergyConsumerDescriptor&&) noexcept;
-  AndroidEnergyConsumerDescriptor& operator=(AndroidEnergyConsumerDescriptor&&);
-  AndroidEnergyConsumerDescriptor(const AndroidEnergyConsumerDescriptor&);
-  AndroidEnergyConsumerDescriptor& operator=(const AndroidEnergyConsumerDescriptor&);
-  bool operator==(const AndroidEnergyConsumerDescriptor&) const;
-  bool operator!=(const AndroidEnergyConsumerDescriptor& other) const { return !(*this == other); }
-
-  bool ParseFromArray(const void*, size_t) override;
-  std::string SerializeAsString() const override;
-  std::vector<uint8_t> SerializeAsArray() const override;
-  void Serialize(::protozero::Message*) const;
-
-  const std::vector<AndroidEnergyConsumer>& energy_consumers() const { return energy_consumers_; }
-  std::vector<AndroidEnergyConsumer>* mutable_energy_consumers() { return &energy_consumers_; }
-  int energy_consumers_size() const;
-  void clear_energy_consumers();
-  AndroidEnergyConsumer* add_energy_consumers();
-
- private:
-  std::vector<AndroidEnergyConsumer> energy_consumers_;
-
-  // Allows to preserve unknown protobuf fields for compatibility
-  // with future versions of .proto files.
-  std::string unknown_fields_;
-
-  std::bitset<2> _has_field_{};
-};
-
-
-class PERFETTO_EXPORT AndroidEnergyConsumer : public ::protozero::CppMessageObj {
- public:
-  enum FieldNumbers {
-    kEnergyConsumerIdFieldNumber = 1,
-    kOrdinalFieldNumber = 2,
-    kTypeFieldNumber = 3,
-    kNameFieldNumber = 4,
-  };
-
-  AndroidEnergyConsumer();
-  ~AndroidEnergyConsumer() override;
-  AndroidEnergyConsumer(AndroidEnergyConsumer&&) noexcept;
-  AndroidEnergyConsumer& operator=(AndroidEnergyConsumer&&);
-  AndroidEnergyConsumer(const AndroidEnergyConsumer&);
-  AndroidEnergyConsumer& operator=(const AndroidEnergyConsumer&);
-  bool operator==(const AndroidEnergyConsumer&) const;
-  bool operator!=(const AndroidEnergyConsumer& other) const { return !(*this == other); }
-
-  bool ParseFromArray(const void*, size_t) override;
-  std::string SerializeAsString() const override;
-  std::vector<uint8_t> SerializeAsArray() const override;
-  void Serialize(::protozero::Message*) const;
-
-  bool has_energy_consumer_id() const { return _has_field_[1]; }
-  int32_t energy_consumer_id() const { return energy_consumer_id_; }
-  void set_energy_consumer_id(int32_t value) { energy_consumer_id_ = value; _has_field_.set(1); }
-
-  bool has_ordinal() const { return _has_field_[2]; }
-  int32_t ordinal() const { return ordinal_; }
-  void set_ordinal(int32_t value) { ordinal_ = value; _has_field_.set(2); }
-
-  bool has_type() const { return _has_field_[3]; }
-  const std::string& type() const { return type_; }
-  void set_type(const std::string& value) { type_ = value; _has_field_.set(3); }
-
-  bool has_name() const { return _has_field_[4]; }
-  const std::string& name() const { return name_; }
-  void set_name(const std::string& value) { name_ = value; _has_field_.set(4); }
-
- private:
-  int32_t energy_consumer_id_{};
-  int32_t ordinal_{};
-  std::string type_{};
-  std::string name_{};
-
-  // Allows to preserve unknown protobuf fields for compatibility
-  // with future versions of .proto files.
-  std::string unknown_fields_;
-
-  std::bitset<5> _has_field_{};
-};
-
-}  // namespace perfetto
-}  // namespace protos
-}  // namespace gen
-
-#endif  // PERFETTO_PROTOS_PROTOS_PERFETTO_COMMON_ANDROID_ENERGY_CONSUMER_DESCRIPTOR_PROTO_CPP_H_
-// gen_amalgamated expanded: #include "perfetto/protozero/message.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/packed_repeated_fields.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/proto_decoder.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/scattered_heap_buffer.h"
-// DO NOT EDIT. Autogenerated by Perfetto cppgen_plugin
-#if defined(__GNUC__) || defined(__clang__)
-#pragma GCC diagnostic push
-#pragma GCC diagnostic ignored "-Wfloat-equal"
-#endif
-// gen_amalgamated expanded: #include "protos/perfetto/common/android_energy_consumer_descriptor.gen.h"
-
-namespace perfetto {
-namespace protos {
-namespace gen {
-
-AndroidEnergyConsumerDescriptor::AndroidEnergyConsumerDescriptor() = default;
-AndroidEnergyConsumerDescriptor::~AndroidEnergyConsumerDescriptor() = default;
-AndroidEnergyConsumerDescriptor::AndroidEnergyConsumerDescriptor(const AndroidEnergyConsumerDescriptor&) = default;
-AndroidEnergyConsumerDescriptor& AndroidEnergyConsumerDescriptor::operator=(const AndroidEnergyConsumerDescriptor&) = default;
-AndroidEnergyConsumerDescriptor::AndroidEnergyConsumerDescriptor(AndroidEnergyConsumerDescriptor&&) noexcept = default;
-AndroidEnergyConsumerDescriptor& AndroidEnergyConsumerDescriptor::operator=(AndroidEnergyConsumerDescriptor&&) = default;
-
-bool AndroidEnergyConsumerDescriptor::operator==(const AndroidEnergyConsumerDescriptor& other) const {
-  return unknown_fields_ == other.unknown_fields_
-   && energy_consumers_ == other.energy_consumers_;
-}
-
-int AndroidEnergyConsumerDescriptor::energy_consumers_size() const { return static_cast<int>(energy_consumers_.size()); }
-void AndroidEnergyConsumerDescriptor::clear_energy_consumers() { energy_consumers_.clear(); }
-AndroidEnergyConsumer* AndroidEnergyConsumerDescriptor::add_energy_consumers() { energy_consumers_.emplace_back(); return &energy_consumers_.back(); }
-bool AndroidEnergyConsumerDescriptor::ParseFromArray(const void* raw, size_t size) {
-  energy_consumers_.clear();
-  unknown_fields_.clear();
-  bool packed_error = false;
-
-  ::protozero::ProtoDecoder dec(raw, size);
-  for (auto field = dec.ReadField(); field.valid(); field = dec.ReadField()) {
-    if (field.id() < _has_field_.size()) {
-      _has_field_.set(field.id());
-    }
-    switch (field.id()) {
-      case 1 /* energy_consumers */:
-        energy_consumers_.emplace_back();
-        energy_consumers_.back().ParseFromArray(field.data(), field.size());
-        break;
-      default:
-        field.SerializeAndAppendTo(&unknown_fields_);
-        break;
-    }
-  }
-  return !packed_error && !dec.bytes_left();
-}
-
-std::string AndroidEnergyConsumerDescriptor::SerializeAsString() const {
-  ::protozero::HeapBuffered<::protozero::Message> msg;
-  Serialize(msg.get());
-  return msg.SerializeAsString();
-}
-
-std::vector<uint8_t> AndroidEnergyConsumerDescriptor::SerializeAsArray() const {
-  ::protozero::HeapBuffered<::protozero::Message> msg;
-  Serialize(msg.get());
-  return msg.SerializeAsArray();
-}
-
-void AndroidEnergyConsumerDescriptor::Serialize(::protozero::Message* msg) const {
-  // Field 1: energy_consumers
-  for (auto& it : energy_consumers_) {
-    it.Serialize(msg->BeginNestedMessage<::protozero::Message>(1));
-  }
-
-  msg->AppendRawProtoBytes(unknown_fields_.data(), unknown_fields_.size());
-}
-
-
-AndroidEnergyConsumer::AndroidEnergyConsumer() = default;
-AndroidEnergyConsumer::~AndroidEnergyConsumer() = default;
-AndroidEnergyConsumer::AndroidEnergyConsumer(const AndroidEnergyConsumer&) = default;
-AndroidEnergyConsumer& AndroidEnergyConsumer::operator=(const AndroidEnergyConsumer&) = default;
-AndroidEnergyConsumer::AndroidEnergyConsumer(AndroidEnergyConsumer&&) noexcept = default;
-AndroidEnergyConsumer& AndroidEnergyConsumer::operator=(AndroidEnergyConsumer&&) = default;
-
-bool AndroidEnergyConsumer::operator==(const AndroidEnergyConsumer& other) const {
-  return unknown_fields_ == other.unknown_fields_
-   && energy_consumer_id_ == other.energy_consumer_id_
-   && ordinal_ == other.ordinal_
-   && type_ == other.type_
-   && name_ == other.name_;
-}
-
-bool AndroidEnergyConsumer::ParseFromArray(const void* raw, size_t size) {
-  unknown_fields_.clear();
-  bool packed_error = false;
-
-  ::protozero::ProtoDecoder dec(raw, size);
-  for (auto field = dec.ReadField(); field.valid(); field = dec.ReadField()) {
-    if (field.id() < _has_field_.size()) {
-      _has_field_.set(field.id());
-    }
-    switch (field.id()) {
-      case 1 /* energy_consumer_id */:
-        field.get(&energy_consumer_id_);
-        break;
-      case 2 /* ordinal */:
-        field.get(&ordinal_);
-        break;
-      case 3 /* type */:
-        field.get(&type_);
-        break;
-      case 4 /* name */:
-        field.get(&name_);
-        break;
-      default:
-        field.SerializeAndAppendTo(&unknown_fields_);
-        break;
-    }
-  }
-  return !packed_error && !dec.bytes_left();
-}
-
-std::string AndroidEnergyConsumer::SerializeAsString() const {
-  ::protozero::HeapBuffered<::protozero::Message> msg;
-  Serialize(msg.get());
-  return msg.SerializeAsString();
-}
-
-std::vector<uint8_t> AndroidEnergyConsumer::SerializeAsArray() const {
-  ::protozero::HeapBuffered<::protozero::Message> msg;
-  Serialize(msg.get());
-  return msg.SerializeAsArray();
-}
-
-void AndroidEnergyConsumer::Serialize(::protozero::Message* msg) const {
-  // Field 1: energy_consumer_id
-  if (_has_field_[1]) {
-    msg->AppendVarInt(1, energy_consumer_id_);
-  }
-
-  // Field 2: ordinal
-  if (_has_field_[2]) {
-    msg->AppendVarInt(2, ordinal_);
-  }
-
-  // Field 3: type
-  if (_has_field_[3]) {
-    msg->AppendString(3, type_);
-  }
-
-  // Field 4: name
-  if (_has_field_[4]) {
-    msg->AppendString(4, name_);
-  }
-
-  msg->AppendRawProtoBytes(unknown_fields_.data(), unknown_fields_.size());
-}
-
-}  // namespace perfetto
-}  // namespace protos
-}  // namespace gen
-#if defined(__GNUC__) || defined(__clang__)
-#pragma GCC diagnostic pop
-#endif
-// gen_amalgamated begin source: gen/protos/perfetto/common/android_log_constants.gen.cc
-// gen_amalgamated begin header: gen/protos/perfetto/common/android_log_constants.gen.h
-// DO NOT EDIT. Autogenerated by Perfetto cppgen_plugin
-#ifndef PERFETTO_PROTOS_PROTOS_PERFETTO_COMMON_ANDROID_LOG_CONSTANTS_PROTO_CPP_H_
-#define PERFETTO_PROTOS_PROTOS_PERFETTO_COMMON_ANDROID_LOG_CONSTANTS_PROTO_CPP_H_
-
-#include <stdint.h>
-#include <bitset>
-#include <vector>
-#include <string>
-#include <type_traits>
-
-// gen_amalgamated expanded: #include "perfetto/protozero/cpp_message_obj.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/copyable_ptr.h"
-// gen_amalgamated expanded: #include "perfetto/base/export.h"
-
-namespace perfetto {
-namespace protos {
-namespace gen {
-enum AndroidLogId : int;
-enum AndroidLogPriority : int;
-}  // namespace perfetto
-}  // namespace protos
-}  // namespace gen
-
-namespace protozero {
-class Message;
-}  // namespace protozero
-
-namespace perfetto {
-namespace protos {
-namespace gen {
-enum AndroidLogId : int {
-  LID_DEFAULT = 0,
-  LID_RADIO = 1,
-  LID_EVENTS = 2,
-  LID_SYSTEM = 3,
-  LID_CRASH = 4,
-  LID_STATS = 5,
-  LID_SECURITY = 6,
-  LID_KERNEL = 7,
-};
-enum AndroidLogPriority : int {
-  PRIO_UNSPECIFIED = 0,
-  PRIO_UNUSED = 1,
-  PRIO_VERBOSE = 2,
-  PRIO_DEBUG = 3,
-  PRIO_INFO = 4,
-  PRIO_WARN = 5,
-  PRIO_ERROR = 6,
-  PRIO_FATAL = 7,
-};
-}  // namespace perfetto
-}  // namespace protos
-}  // namespace gen
-
-#endif  // PERFETTO_PROTOS_PROTOS_PERFETTO_COMMON_ANDROID_LOG_CONSTANTS_PROTO_CPP_H_
-// gen_amalgamated expanded: #include "perfetto/protozero/message.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/packed_repeated_fields.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/proto_decoder.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/scattered_heap_buffer.h"
-// DO NOT EDIT. Autogenerated by Perfetto cppgen_plugin
-#if defined(__GNUC__) || defined(__clang__)
-#pragma GCC diagnostic push
-#pragma GCC diagnostic ignored "-Wfloat-equal"
-#endif
-// gen_amalgamated expanded: #include "protos/perfetto/common/android_log_constants.gen.h"
-
-namespace perfetto {
-namespace protos {
-namespace gen {
-}  // namespace perfetto
-}  // namespace protos
-}  // namespace gen
-#if defined(__GNUC__) || defined(__clang__)
-#pragma GCC diagnostic pop
-#endif
-// gen_amalgamated begin source: gen/protos/perfetto/common/builtin_clock.gen.cc
-// gen_amalgamated begin header: gen/protos/perfetto/common/builtin_clock.gen.h
-// DO NOT EDIT. Autogenerated by Perfetto cppgen_plugin
-#ifndef PERFETTO_PROTOS_PROTOS_PERFETTO_COMMON_BUILTIN_CLOCK_PROTO_CPP_H_
-#define PERFETTO_PROTOS_PROTOS_PERFETTO_COMMON_BUILTIN_CLOCK_PROTO_CPP_H_
-
-#include <stdint.h>
-#include <bitset>
-#include <vector>
-#include <string>
-#include <type_traits>
-
-// gen_amalgamated expanded: #include "perfetto/protozero/cpp_message_obj.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/copyable_ptr.h"
-// gen_amalgamated expanded: #include "perfetto/base/export.h"
-
-namespace perfetto {
-namespace protos {
-namespace gen {
-enum BuiltinClock : int;
-}  // namespace perfetto
-}  // namespace protos
-}  // namespace gen
-
-namespace protozero {
-class Message;
-}  // namespace protozero
-
-namespace perfetto {
-namespace protos {
-namespace gen {
-enum BuiltinClock : int {
-  BUILTIN_CLOCK_UNKNOWN = 0,
-  BUILTIN_CLOCK_REALTIME = 1,
-  BUILTIN_CLOCK_REALTIME_COARSE = 2,
-  BUILTIN_CLOCK_MONOTONIC = 3,
-  BUILTIN_CLOCK_MONOTONIC_COARSE = 4,
-  BUILTIN_CLOCK_MONOTONIC_RAW = 5,
-  BUILTIN_CLOCK_BOOTTIME = 6,
-  BUILTIN_CLOCK_MAX_ID = 63,
-};
-}  // namespace perfetto
-}  // namespace protos
-}  // namespace gen
-
-#endif  // PERFETTO_PROTOS_PROTOS_PERFETTO_COMMON_BUILTIN_CLOCK_PROTO_CPP_H_
-// gen_amalgamated expanded: #include "perfetto/protozero/message.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/packed_repeated_fields.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/proto_decoder.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/scattered_heap_buffer.h"
-// DO NOT EDIT. Autogenerated by Perfetto cppgen_plugin
-#if defined(__GNUC__) || defined(__clang__)
-#pragma GCC diagnostic push
-#pragma GCC diagnostic ignored "-Wfloat-equal"
-#endif
-// gen_amalgamated expanded: #include "protos/perfetto/common/builtin_clock.gen.h"
-
-namespace perfetto {
-namespace protos {
-namespace gen {
-}  // namespace perfetto
-}  // namespace protos
-}  // namespace gen
-#if defined(__GNUC__) || defined(__clang__)
-#pragma GCC diagnostic pop
-#endif
-// gen_amalgamated begin source: gen/protos/perfetto/common/commit_data_request.gen.cc
-// gen_amalgamated begin header: gen/protos/perfetto/common/commit_data_request.gen.h
-// DO NOT EDIT. Autogenerated by Perfetto cppgen_plugin
-#ifndef PERFETTO_PROTOS_PROTOS_PERFETTO_COMMON_COMMIT_DATA_REQUEST_PROTO_CPP_H_
-#define PERFETTO_PROTOS_PROTOS_PERFETTO_COMMON_COMMIT_DATA_REQUEST_PROTO_CPP_H_
-
-#include <stdint.h>
-#include <bitset>
-#include <vector>
-#include <string>
-#include <type_traits>
-
-// gen_amalgamated expanded: #include "perfetto/protozero/cpp_message_obj.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/copyable_ptr.h"
-// gen_amalgamated expanded: #include "perfetto/base/export.h"
-
-namespace perfetto {
-namespace protos {
-namespace gen {
-class CommitDataRequest;
-class CommitDataRequest_ChunkToPatch;
-class CommitDataRequest_ChunkToPatch_Patch;
-class CommitDataRequest_ChunksToMove;
-}  // namespace perfetto
-}  // namespace protos
-}  // namespace gen
-
-namespace protozero {
-class Message;
-}  // namespace protozero
-
-namespace perfetto {
-namespace protos {
-namespace gen {
-
-class PERFETTO_EXPORT CommitDataRequest : public ::protozero::CppMessageObj {
- public:
-  using ChunksToMove = CommitDataRequest_ChunksToMove;
-  using ChunkToPatch = CommitDataRequest_ChunkToPatch;
-  enum FieldNumbers {
-    kChunksToMoveFieldNumber = 1,
-    kChunksToPatchFieldNumber = 2,
-    kFlushRequestIdFieldNumber = 3,
-  };
-
-  CommitDataRequest();
-  ~CommitDataRequest() override;
-  CommitDataRequest(CommitDataRequest&&) noexcept;
-  CommitDataRequest& operator=(CommitDataRequest&&);
-  CommitDataRequest(const CommitDataRequest&);
-  CommitDataRequest& operator=(const CommitDataRequest&);
-  bool operator==(const CommitDataRequest&) const;
-  bool operator!=(const CommitDataRequest& other) const { return !(*this == other); }
-
-  bool ParseFromArray(const void*, size_t) override;
-  std::string SerializeAsString() const override;
-  std::vector<uint8_t> SerializeAsArray() const override;
-  void Serialize(::protozero::Message*) const;
-
-  const std::vector<CommitDataRequest_ChunksToMove>& chunks_to_move() const { return chunks_to_move_; }
-  std::vector<CommitDataRequest_ChunksToMove>* mutable_chunks_to_move() { return &chunks_to_move_; }
-  int chunks_to_move_size() const;
-  void clear_chunks_to_move();
-  CommitDataRequest_ChunksToMove* add_chunks_to_move();
-
-  const std::vector<CommitDataRequest_ChunkToPatch>& chunks_to_patch() const { return chunks_to_patch_; }
-  std::vector<CommitDataRequest_ChunkToPatch>* mutable_chunks_to_patch() { return &chunks_to_patch_; }
-  int chunks_to_patch_size() const;
-  void clear_chunks_to_patch();
-  CommitDataRequest_ChunkToPatch* add_chunks_to_patch();
-
-  bool has_flush_request_id() const { return _has_field_[3]; }
-  uint64_t flush_request_id() const { return flush_request_id_; }
-  void set_flush_request_id(uint64_t value) { flush_request_id_ = value; _has_field_.set(3); }
-
- private:
-  std::vector<CommitDataRequest_ChunksToMove> chunks_to_move_;
-  std::vector<CommitDataRequest_ChunkToPatch> chunks_to_patch_;
-  uint64_t flush_request_id_{};
-
-  // Allows to preserve unknown protobuf fields for compatibility
-  // with future versions of .proto files.
-  std::string unknown_fields_;
-
-  std::bitset<4> _has_field_{};
-};
-
-
-class PERFETTO_EXPORT CommitDataRequest_ChunkToPatch : public ::protozero::CppMessageObj {
- public:
-  using Patch = CommitDataRequest_ChunkToPatch_Patch;
-  enum FieldNumbers {
-    kTargetBufferFieldNumber = 1,
-    kWriterIdFieldNumber = 2,
-    kChunkIdFieldNumber = 3,
-    kPatchesFieldNumber = 4,
-    kHasMorePatchesFieldNumber = 5,
-  };
-
-  CommitDataRequest_ChunkToPatch();
-  ~CommitDataRequest_ChunkToPatch() override;
-  CommitDataRequest_ChunkToPatch(CommitDataRequest_ChunkToPatch&&) noexcept;
-  CommitDataRequest_ChunkToPatch& operator=(CommitDataRequest_ChunkToPatch&&);
-  CommitDataRequest_ChunkToPatch(const CommitDataRequest_ChunkToPatch&);
-  CommitDataRequest_ChunkToPatch& operator=(const CommitDataRequest_ChunkToPatch&);
-  bool operator==(const CommitDataRequest_ChunkToPatch&) const;
-  bool operator!=(const CommitDataRequest_ChunkToPatch& other) const { return !(*this == other); }
-
-  bool ParseFromArray(const void*, size_t) override;
-  std::string SerializeAsString() const override;
-  std::vector<uint8_t> SerializeAsArray() const override;
-  void Serialize(::protozero::Message*) const;
-
-  bool has_target_buffer() const { return _has_field_[1]; }
-  uint32_t target_buffer() const { return target_buffer_; }
-  void set_target_buffer(uint32_t value) { target_buffer_ = value; _has_field_.set(1); }
-
-  bool has_writer_id() const { return _has_field_[2]; }
-  uint32_t writer_id() const { return writer_id_; }
-  void set_writer_id(uint32_t value) { writer_id_ = value; _has_field_.set(2); }
-
-  bool has_chunk_id() const { return _has_field_[3]; }
-  uint32_t chunk_id() const { return chunk_id_; }
-  void set_chunk_id(uint32_t value) { chunk_id_ = value; _has_field_.set(3); }
-
-  const std::vector<CommitDataRequest_ChunkToPatch_Patch>& patches() const { return patches_; }
-  std::vector<CommitDataRequest_ChunkToPatch_Patch>* mutable_patches() { return &patches_; }
-  int patches_size() const;
-  void clear_patches();
-  CommitDataRequest_ChunkToPatch_Patch* add_patches();
-
-  bool has_has_more_patches() const { return _has_field_[5]; }
-  bool has_more_patches() const { return has_more_patches_; }
-  void set_has_more_patches(bool value) { has_more_patches_ = value; _has_field_.set(5); }
-
- private:
-  uint32_t target_buffer_{};
-  uint32_t writer_id_{};
-  uint32_t chunk_id_{};
-  std::vector<CommitDataRequest_ChunkToPatch_Patch> patches_;
-  bool has_more_patches_{};
-
-  // Allows to preserve unknown protobuf fields for compatibility
-  // with future versions of .proto files.
-  std::string unknown_fields_;
-
-  std::bitset<6> _has_field_{};
-};
-
-
-class PERFETTO_EXPORT CommitDataRequest_ChunkToPatch_Patch : public ::protozero::CppMessageObj {
- public:
-  enum FieldNumbers {
-    kOffsetFieldNumber = 1,
-    kDataFieldNumber = 2,
-  };
-
-  CommitDataRequest_ChunkToPatch_Patch();
-  ~CommitDataRequest_ChunkToPatch_Patch() override;
-  CommitDataRequest_ChunkToPatch_Patch(CommitDataRequest_ChunkToPatch_Patch&&) noexcept;
-  CommitDataRequest_ChunkToPatch_Patch& operator=(CommitDataRequest_ChunkToPatch_Patch&&);
-  CommitDataRequest_ChunkToPatch_Patch(const CommitDataRequest_ChunkToPatch_Patch&);
-  CommitDataRequest_ChunkToPatch_Patch& operator=(const CommitDataRequest_ChunkToPatch_Patch&);
-  bool operator==(const CommitDataRequest_ChunkToPatch_Patch&) const;
-  bool operator!=(const CommitDataRequest_ChunkToPatch_Patch& other) const { return !(*this == other); }
-
-  bool ParseFromArray(const void*, size_t) override;
-  std::string SerializeAsString() const override;
-  std::vector<uint8_t> SerializeAsArray() const override;
-  void Serialize(::protozero::Message*) const;
-
-  bool has_offset() const { return _has_field_[1]; }
-  uint32_t offset() const { return offset_; }
-  void set_offset(uint32_t value) { offset_ = value; _has_field_.set(1); }
-
-  bool has_data() const { return _has_field_[2]; }
-  const std::string& data() const { return data_; }
-  void set_data(const std::string& value) { data_ = value; _has_field_.set(2); }
-  void set_data(const void* p, size_t s) { data_.assign(reinterpret_cast<const char*>(p), s); _has_field_.set(2); }
-
- private:
-  uint32_t offset_{};
-  std::string data_{};
-
-  // Allows to preserve unknown protobuf fields for compatibility
-  // with future versions of .proto files.
-  std::string unknown_fields_;
-
-  std::bitset<3> _has_field_{};
-};
-
-
-class PERFETTO_EXPORT CommitDataRequest_ChunksToMove : public ::protozero::CppMessageObj {
- public:
-  enum FieldNumbers {
-    kPageFieldNumber = 1,
-    kChunkFieldNumber = 2,
-    kTargetBufferFieldNumber = 3,
-  };
-
-  CommitDataRequest_ChunksToMove();
-  ~CommitDataRequest_ChunksToMove() override;
-  CommitDataRequest_ChunksToMove(CommitDataRequest_ChunksToMove&&) noexcept;
-  CommitDataRequest_ChunksToMove& operator=(CommitDataRequest_ChunksToMove&&);
-  CommitDataRequest_ChunksToMove(const CommitDataRequest_ChunksToMove&);
-  CommitDataRequest_ChunksToMove& operator=(const CommitDataRequest_ChunksToMove&);
-  bool operator==(const CommitDataRequest_ChunksToMove&) const;
-  bool operator!=(const CommitDataRequest_ChunksToMove& other) const { return !(*this == other); }
-
-  bool ParseFromArray(const void*, size_t) override;
-  std::string SerializeAsString() const override;
-  std::vector<uint8_t> SerializeAsArray() const override;
-  void Serialize(::protozero::Message*) const;
-
-  bool has_page() const { return _has_field_[1]; }
-  uint32_t page() const { return page_; }
-  void set_page(uint32_t value) { page_ = value; _has_field_.set(1); }
-
-  bool has_chunk() const { return _has_field_[2]; }
-  uint32_t chunk() const { return chunk_; }
-  void set_chunk(uint32_t value) { chunk_ = value; _has_field_.set(2); }
-
-  bool has_target_buffer() const { return _has_field_[3]; }
-  uint32_t target_buffer() const { return target_buffer_; }
-  void set_target_buffer(uint32_t value) { target_buffer_ = value; _has_field_.set(3); }
-
- private:
-  uint32_t page_{};
-  uint32_t chunk_{};
-  uint32_t target_buffer_{};
-
-  // Allows to preserve unknown protobuf fields for compatibility
-  // with future versions of .proto files.
-  std::string unknown_fields_;
-
-  std::bitset<4> _has_field_{};
-};
-
-}  // namespace perfetto
-}  // namespace protos
-}  // namespace gen
-
-#endif  // PERFETTO_PROTOS_PROTOS_PERFETTO_COMMON_COMMIT_DATA_REQUEST_PROTO_CPP_H_
-// gen_amalgamated expanded: #include "perfetto/protozero/message.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/packed_repeated_fields.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/proto_decoder.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/scattered_heap_buffer.h"
-// DO NOT EDIT. Autogenerated by Perfetto cppgen_plugin
-#if defined(__GNUC__) || defined(__clang__)
-#pragma GCC diagnostic push
-#pragma GCC diagnostic ignored "-Wfloat-equal"
-#endif
-// gen_amalgamated expanded: #include "protos/perfetto/common/commit_data_request.gen.h"
-
-namespace perfetto {
-namespace protos {
-namespace gen {
-
-CommitDataRequest::CommitDataRequest() = default;
-CommitDataRequest::~CommitDataRequest() = default;
-CommitDataRequest::CommitDataRequest(const CommitDataRequest&) = default;
-CommitDataRequest& CommitDataRequest::operator=(const CommitDataRequest&) = default;
-CommitDataRequest::CommitDataRequest(CommitDataRequest&&) noexcept = default;
-CommitDataRequest& CommitDataRequest::operator=(CommitDataRequest&&) = default;
-
-bool CommitDataRequest::operator==(const CommitDataRequest& other) const {
-  return unknown_fields_ == other.unknown_fields_
-   && chunks_to_move_ == other.chunks_to_move_
-   && chunks_to_patch_ == other.chunks_to_patch_
-   && flush_request_id_ == other.flush_request_id_;
-}
-
-int CommitDataRequest::chunks_to_move_size() const { return static_cast<int>(chunks_to_move_.size()); }
-void CommitDataRequest::clear_chunks_to_move() { chunks_to_move_.clear(); }
-CommitDataRequest_ChunksToMove* CommitDataRequest::add_chunks_to_move() { chunks_to_move_.emplace_back(); return &chunks_to_move_.back(); }
-int CommitDataRequest::chunks_to_patch_size() const { return static_cast<int>(chunks_to_patch_.size()); }
-void CommitDataRequest::clear_chunks_to_patch() { chunks_to_patch_.clear(); }
-CommitDataRequest_ChunkToPatch* CommitDataRequest::add_chunks_to_patch() { chunks_to_patch_.emplace_back(); return &chunks_to_patch_.back(); }
-bool CommitDataRequest::ParseFromArray(const void* raw, size_t size) {
-  chunks_to_move_.clear();
-  chunks_to_patch_.clear();
-  unknown_fields_.clear();
-  bool packed_error = false;
-
-  ::protozero::ProtoDecoder dec(raw, size);
-  for (auto field = dec.ReadField(); field.valid(); field = dec.ReadField()) {
-    if (field.id() < _has_field_.size()) {
-      _has_field_.set(field.id());
-    }
-    switch (field.id()) {
-      case 1 /* chunks_to_move */:
-        chunks_to_move_.emplace_back();
-        chunks_to_move_.back().ParseFromArray(field.data(), field.size());
-        break;
-      case 2 /* chunks_to_patch */:
-        chunks_to_patch_.emplace_back();
-        chunks_to_patch_.back().ParseFromArray(field.data(), field.size());
-        break;
-      case 3 /* flush_request_id */:
-        field.get(&flush_request_id_);
-        break;
-      default:
-        field.SerializeAndAppendTo(&unknown_fields_);
-        break;
-    }
-  }
-  return !packed_error && !dec.bytes_left();
-}
-
-std::string CommitDataRequest::SerializeAsString() const {
-  ::protozero::HeapBuffered<::protozero::Message> msg;
-  Serialize(msg.get());
-  return msg.SerializeAsString();
-}
-
-std::vector<uint8_t> CommitDataRequest::SerializeAsArray() const {
-  ::protozero::HeapBuffered<::protozero::Message> msg;
-  Serialize(msg.get());
-  return msg.SerializeAsArray();
-}
-
-void CommitDataRequest::Serialize(::protozero::Message* msg) const {
-  // Field 1: chunks_to_move
-  for (auto& it : chunks_to_move_) {
-    it.Serialize(msg->BeginNestedMessage<::protozero::Message>(1));
-  }
-
-  // Field 2: chunks_to_patch
-  for (auto& it : chunks_to_patch_) {
-    it.Serialize(msg->BeginNestedMessage<::protozero::Message>(2));
-  }
-
-  // Field 3: flush_request_id
-  if (_has_field_[3]) {
-    msg->AppendVarInt(3, flush_request_id_);
-  }
-
-  msg->AppendRawProtoBytes(unknown_fields_.data(), unknown_fields_.size());
-}
-
-
-CommitDataRequest_ChunkToPatch::CommitDataRequest_ChunkToPatch() = default;
-CommitDataRequest_ChunkToPatch::~CommitDataRequest_ChunkToPatch() = default;
-CommitDataRequest_ChunkToPatch::CommitDataRequest_ChunkToPatch(const CommitDataRequest_ChunkToPatch&) = default;
-CommitDataRequest_ChunkToPatch& CommitDataRequest_ChunkToPatch::operator=(const CommitDataRequest_ChunkToPatch&) = default;
-CommitDataRequest_ChunkToPatch::CommitDataRequest_ChunkToPatch(CommitDataRequest_ChunkToPatch&&) noexcept = default;
-CommitDataRequest_ChunkToPatch& CommitDataRequest_ChunkToPatch::operator=(CommitDataRequest_ChunkToPatch&&) = default;
-
-bool CommitDataRequest_ChunkToPatch::operator==(const CommitDataRequest_ChunkToPatch& other) const {
-  return unknown_fields_ == other.unknown_fields_
-   && target_buffer_ == other.target_buffer_
-   && writer_id_ == other.writer_id_
-   && chunk_id_ == other.chunk_id_
-   && patches_ == other.patches_
-   && has_more_patches_ == other.has_more_patches_;
-}
-
-int CommitDataRequest_ChunkToPatch::patches_size() const { return static_cast<int>(patches_.size()); }
-void CommitDataRequest_ChunkToPatch::clear_patches() { patches_.clear(); }
-CommitDataRequest_ChunkToPatch_Patch* CommitDataRequest_ChunkToPatch::add_patches() { patches_.emplace_back(); return &patches_.back(); }
-bool CommitDataRequest_ChunkToPatch::ParseFromArray(const void* raw, size_t size) {
-  patches_.clear();
-  unknown_fields_.clear();
-  bool packed_error = false;
-
-  ::protozero::ProtoDecoder dec(raw, size);
-  for (auto field = dec.ReadField(); field.valid(); field = dec.ReadField()) {
-    if (field.id() < _has_field_.size()) {
-      _has_field_.set(field.id());
-    }
-    switch (field.id()) {
-      case 1 /* target_buffer */:
-        field.get(&target_buffer_);
-        break;
-      case 2 /* writer_id */:
-        field.get(&writer_id_);
-        break;
-      case 3 /* chunk_id */:
-        field.get(&chunk_id_);
-        break;
-      case 4 /* patches */:
-        patches_.emplace_back();
-        patches_.back().ParseFromArray(field.data(), field.size());
-        break;
-      case 5 /* has_more_patches */:
-        field.get(&has_more_patches_);
-        break;
-      default:
-        field.SerializeAndAppendTo(&unknown_fields_);
-        break;
-    }
-  }
-  return !packed_error && !dec.bytes_left();
-}
-
-std::string CommitDataRequest_ChunkToPatch::SerializeAsString() const {
-  ::protozero::HeapBuffered<::protozero::Message> msg;
-  Serialize(msg.get());
-  return msg.SerializeAsString();
-}
-
-std::vector<uint8_t> CommitDataRequest_ChunkToPatch::SerializeAsArray() const {
-  ::protozero::HeapBuffered<::protozero::Message> msg;
-  Serialize(msg.get());
-  return msg.SerializeAsArray();
-}
-
-void CommitDataRequest_ChunkToPatch::Serialize(::protozero::Message* msg) const {
-  // Field 1: target_buffer
-  if (_has_field_[1]) {
-    msg->AppendVarInt(1, target_buffer_);
-  }
-
-  // Field 2: writer_id
-  if (_has_field_[2]) {
-    msg->AppendVarInt(2, writer_id_);
-  }
-
-  // Field 3: chunk_id
-  if (_has_field_[3]) {
-    msg->AppendVarInt(3, chunk_id_);
-  }
-
-  // Field 4: patches
-  for (auto& it : patches_) {
-    it.Serialize(msg->BeginNestedMessage<::protozero::Message>(4));
-  }
-
-  // Field 5: has_more_patches
-  if (_has_field_[5]) {
-    msg->AppendTinyVarInt(5, has_more_patches_);
-  }
-
-  msg->AppendRawProtoBytes(unknown_fields_.data(), unknown_fields_.size());
-}
-
-
-CommitDataRequest_ChunkToPatch_Patch::CommitDataRequest_ChunkToPatch_Patch() = default;
-CommitDataRequest_ChunkToPatch_Patch::~CommitDataRequest_ChunkToPatch_Patch() = default;
-CommitDataRequest_ChunkToPatch_Patch::CommitDataRequest_ChunkToPatch_Patch(const CommitDataRequest_ChunkToPatch_Patch&) = default;
-CommitDataRequest_ChunkToPatch_Patch& CommitDataRequest_ChunkToPatch_Patch::operator=(const CommitDataRequest_ChunkToPatch_Patch&) = default;
-CommitDataRequest_ChunkToPatch_Patch::CommitDataRequest_ChunkToPatch_Patch(CommitDataRequest_ChunkToPatch_Patch&&) noexcept = default;
-CommitDataRequest_ChunkToPatch_Patch& CommitDataRequest_ChunkToPatch_Patch::operator=(CommitDataRequest_ChunkToPatch_Patch&&) = default;
-
-bool CommitDataRequest_ChunkToPatch_Patch::operator==(const CommitDataRequest_ChunkToPatch_Patch& other) const {
-  return unknown_fields_ == other.unknown_fields_
-   && offset_ == other.offset_
-   && data_ == other.data_;
-}
-
-bool CommitDataRequest_ChunkToPatch_Patch::ParseFromArray(const void* raw, size_t size) {
-  unknown_fields_.clear();
-  bool packed_error = false;
-
-  ::protozero::ProtoDecoder dec(raw, size);
-  for (auto field = dec.ReadField(); field.valid(); field = dec.ReadField()) {
-    if (field.id() < _has_field_.size()) {
-      _has_field_.set(field.id());
-    }
-    switch (field.id()) {
-      case 1 /* offset */:
-        field.get(&offset_);
-        break;
-      case 2 /* data */:
-        field.get(&data_);
-        break;
-      default:
-        field.SerializeAndAppendTo(&unknown_fields_);
-        break;
-    }
-  }
-  return !packed_error && !dec.bytes_left();
-}
-
-std::string CommitDataRequest_ChunkToPatch_Patch::SerializeAsString() const {
-  ::protozero::HeapBuffered<::protozero::Message> msg;
-  Serialize(msg.get());
-  return msg.SerializeAsString();
-}
-
-std::vector<uint8_t> CommitDataRequest_ChunkToPatch_Patch::SerializeAsArray() const {
-  ::protozero::HeapBuffered<::protozero::Message> msg;
-  Serialize(msg.get());
-  return msg.SerializeAsArray();
-}
-
-void CommitDataRequest_ChunkToPatch_Patch::Serialize(::protozero::Message* msg) const {
-  // Field 1: offset
-  if (_has_field_[1]) {
-    msg->AppendVarInt(1, offset_);
-  }
-
-  // Field 2: data
-  if (_has_field_[2]) {
-    msg->AppendString(2, data_);
-  }
-
-  msg->AppendRawProtoBytes(unknown_fields_.data(), unknown_fields_.size());
-}
-
-
-CommitDataRequest_ChunksToMove::CommitDataRequest_ChunksToMove() = default;
-CommitDataRequest_ChunksToMove::~CommitDataRequest_ChunksToMove() = default;
-CommitDataRequest_ChunksToMove::CommitDataRequest_ChunksToMove(const CommitDataRequest_ChunksToMove&) = default;
-CommitDataRequest_ChunksToMove& CommitDataRequest_ChunksToMove::operator=(const CommitDataRequest_ChunksToMove&) = default;
-CommitDataRequest_ChunksToMove::CommitDataRequest_ChunksToMove(CommitDataRequest_ChunksToMove&&) noexcept = default;
-CommitDataRequest_ChunksToMove& CommitDataRequest_ChunksToMove::operator=(CommitDataRequest_ChunksToMove&&) = default;
-
-bool CommitDataRequest_ChunksToMove::operator==(const CommitDataRequest_ChunksToMove& other) const {
-  return unknown_fields_ == other.unknown_fields_
-   && page_ == other.page_
-   && chunk_ == other.chunk_
-   && target_buffer_ == other.target_buffer_;
-}
-
-bool CommitDataRequest_ChunksToMove::ParseFromArray(const void* raw, size_t size) {
-  unknown_fields_.clear();
-  bool packed_error = false;
-
-  ::protozero::ProtoDecoder dec(raw, size);
-  for (auto field = dec.ReadField(); field.valid(); field = dec.ReadField()) {
-    if (field.id() < _has_field_.size()) {
-      _has_field_.set(field.id());
-    }
-    switch (field.id()) {
-      case 1 /* page */:
-        field.get(&page_);
-        break;
-      case 2 /* chunk */:
-        field.get(&chunk_);
-        break;
-      case 3 /* target_buffer */:
-        field.get(&target_buffer_);
-        break;
-      default:
-        field.SerializeAndAppendTo(&unknown_fields_);
-        break;
-    }
-  }
-  return !packed_error && !dec.bytes_left();
-}
-
-std::string CommitDataRequest_ChunksToMove::SerializeAsString() const {
-  ::protozero::HeapBuffered<::protozero::Message> msg;
-  Serialize(msg.get());
-  return msg.SerializeAsString();
-}
-
-std::vector<uint8_t> CommitDataRequest_ChunksToMove::SerializeAsArray() const {
-  ::protozero::HeapBuffered<::protozero::Message> msg;
-  Serialize(msg.get());
-  return msg.SerializeAsArray();
-}
-
-void CommitDataRequest_ChunksToMove::Serialize(::protozero::Message* msg) const {
-  // Field 1: page
-  if (_has_field_[1]) {
-    msg->AppendVarInt(1, page_);
-  }
-
-  // Field 2: chunk
-  if (_has_field_[2]) {
-    msg->AppendVarInt(2, chunk_);
-  }
-
-  // Field 3: target_buffer
-  if (_has_field_[3]) {
-    msg->AppendVarInt(3, target_buffer_);
-  }
-
-  msg->AppendRawProtoBytes(unknown_fields_.data(), unknown_fields_.size());
-}
-
-}  // namespace perfetto
-}  // namespace protos
-}  // namespace gen
-#if defined(__GNUC__) || defined(__clang__)
-#pragma GCC diagnostic pop
-#endif
-// gen_amalgamated begin source: gen/protos/perfetto/common/data_source_descriptor.gen.cc
-// gen_amalgamated expanded: #include "perfetto/protozero/message.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/packed_repeated_fields.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/proto_decoder.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/scattered_heap_buffer.h"
-// DO NOT EDIT. Autogenerated by Perfetto cppgen_plugin
-#if defined(__GNUC__) || defined(__clang__)
-#pragma GCC diagnostic push
-#pragma GCC diagnostic ignored "-Wfloat-equal"
-#endif
-// gen_amalgamated expanded: #include "protos/perfetto/common/data_source_descriptor.gen.h"
-
-namespace perfetto {
-namespace protos {
-namespace gen {
-
-DataSourceDescriptor::DataSourceDescriptor() = default;
-DataSourceDescriptor::~DataSourceDescriptor() = default;
-DataSourceDescriptor::DataSourceDescriptor(const DataSourceDescriptor&) = default;
-DataSourceDescriptor& DataSourceDescriptor::operator=(const DataSourceDescriptor&) = default;
-DataSourceDescriptor::DataSourceDescriptor(DataSourceDescriptor&&) noexcept = default;
-DataSourceDescriptor& DataSourceDescriptor::operator=(DataSourceDescriptor&&) = default;
-
-bool DataSourceDescriptor::operator==(const DataSourceDescriptor& other) const {
-  return unknown_fields_ == other.unknown_fields_
-   && name_ == other.name_
-   && will_notify_on_stop_ == other.will_notify_on_stop_
-   && will_notify_on_start_ == other.will_notify_on_start_
-   && handles_incremental_state_clear_ == other.handles_incremental_state_clear_
-   && gpu_counter_descriptor_ == other.gpu_counter_descriptor_
-   && track_event_descriptor_ == other.track_event_descriptor_;
-}
-
-bool DataSourceDescriptor::ParseFromArray(const void* raw, size_t size) {
-  unknown_fields_.clear();
-  bool packed_error = false;
-
-  ::protozero::ProtoDecoder dec(raw, size);
-  for (auto field = dec.ReadField(); field.valid(); field = dec.ReadField()) {
-    if (field.id() < _has_field_.size()) {
-      _has_field_.set(field.id());
-    }
-    switch (field.id()) {
-      case 1 /* name */:
-        field.get(&name_);
-        break;
-      case 2 /* will_notify_on_stop */:
-        field.get(&will_notify_on_stop_);
-        break;
-      case 3 /* will_notify_on_start */:
-        field.get(&will_notify_on_start_);
-        break;
-      case 4 /* handles_incremental_state_clear */:
-        field.get(&handles_incremental_state_clear_);
-        break;
-      case 5 /* gpu_counter_descriptor */:
-        gpu_counter_descriptor_ = field.as_std_string();
-        break;
-      case 6 /* track_event_descriptor */:
-        track_event_descriptor_ = field.as_std_string();
-        break;
-      default:
-        field.SerializeAndAppendTo(&unknown_fields_);
-        break;
-    }
-  }
-  return !packed_error && !dec.bytes_left();
-}
-
-std::string DataSourceDescriptor::SerializeAsString() const {
-  ::protozero::HeapBuffered<::protozero::Message> msg;
-  Serialize(msg.get());
-  return msg.SerializeAsString();
-}
-
-std::vector<uint8_t> DataSourceDescriptor::SerializeAsArray() const {
-  ::protozero::HeapBuffered<::protozero::Message> msg;
-  Serialize(msg.get());
-  return msg.SerializeAsArray();
-}
-
-void DataSourceDescriptor::Serialize(::protozero::Message* msg) const {
-  // Field 1: name
-  if (_has_field_[1]) {
-    msg->AppendString(1, name_);
-  }
-
-  // Field 2: will_notify_on_stop
-  if (_has_field_[2]) {
-    msg->AppendTinyVarInt(2, will_notify_on_stop_);
-  }
-
-  // Field 3: will_notify_on_start
-  if (_has_field_[3]) {
-    msg->AppendTinyVarInt(3, will_notify_on_start_);
-  }
-
-  // Field 4: handles_incremental_state_clear
-  if (_has_field_[4]) {
-    msg->AppendTinyVarInt(4, handles_incremental_state_clear_);
-  }
-
-  // Field 5: gpu_counter_descriptor
-  if (_has_field_[5]) {
-    msg->AppendString(5, gpu_counter_descriptor_);
-  }
-
-  // Field 6: track_event_descriptor
-  if (_has_field_[6]) {
-    msg->AppendString(6, track_event_descriptor_);
-  }
-
-  msg->AppendRawProtoBytes(unknown_fields_.data(), unknown_fields_.size());
-}
-
-}  // namespace perfetto
-}  // namespace protos
-}  // namespace gen
-#if defined(__GNUC__) || defined(__clang__)
-#pragma GCC diagnostic pop
-#endif
-// gen_amalgamated begin source: gen/protos/perfetto/common/descriptor.gen.cc
-// gen_amalgamated begin header: gen/protos/perfetto/common/descriptor.gen.h
-// DO NOT EDIT. Autogenerated by Perfetto cppgen_plugin
-#ifndef PERFETTO_PROTOS_PROTOS_PERFETTO_COMMON_DESCRIPTOR_PROTO_CPP_H_
-#define PERFETTO_PROTOS_PROTOS_PERFETTO_COMMON_DESCRIPTOR_PROTO_CPP_H_
-
-#include <stdint.h>
-#include <bitset>
-#include <vector>
-#include <string>
-#include <type_traits>
-
-// gen_amalgamated expanded: #include "perfetto/protozero/cpp_message_obj.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/copyable_ptr.h"
-// gen_amalgamated expanded: #include "perfetto/base/export.h"
-
-namespace perfetto {
-namespace protos {
-namespace gen {
-class OneofOptions;
-class EnumValueDescriptorProto;
-class EnumDescriptorProto;
-class OneofDescriptorProto;
-class FieldDescriptorProto;
-class DescriptorProto;
-class DescriptorProto_ReservedRange;
-class FileDescriptorProto;
-class FileDescriptorSet;
-enum FieldDescriptorProto_Type : int;
-enum FieldDescriptorProto_Label : int;
-}  // namespace perfetto
-}  // namespace protos
-}  // namespace gen
-
-namespace protozero {
-class Message;
-}  // namespace protozero
-
-namespace perfetto {
-namespace protos {
-namespace gen {
-enum FieldDescriptorProto_Type : int {
-  FieldDescriptorProto_Type_TYPE_DOUBLE = 1,
-  FieldDescriptorProto_Type_TYPE_FLOAT = 2,
-  FieldDescriptorProto_Type_TYPE_INT64 = 3,
-  FieldDescriptorProto_Type_TYPE_UINT64 = 4,
-  FieldDescriptorProto_Type_TYPE_INT32 = 5,
-  FieldDescriptorProto_Type_TYPE_FIXED64 = 6,
-  FieldDescriptorProto_Type_TYPE_FIXED32 = 7,
-  FieldDescriptorProto_Type_TYPE_BOOL = 8,
-  FieldDescriptorProto_Type_TYPE_STRING = 9,
-  FieldDescriptorProto_Type_TYPE_GROUP = 10,
-  FieldDescriptorProto_Type_TYPE_MESSAGE = 11,
-  FieldDescriptorProto_Type_TYPE_BYTES = 12,
-  FieldDescriptorProto_Type_TYPE_UINT32 = 13,
-  FieldDescriptorProto_Type_TYPE_ENUM = 14,
-  FieldDescriptorProto_Type_TYPE_SFIXED32 = 15,
-  FieldDescriptorProto_Type_TYPE_SFIXED64 = 16,
-  FieldDescriptorProto_Type_TYPE_SINT32 = 17,
-  FieldDescriptorProto_Type_TYPE_SINT64 = 18,
-};
-enum FieldDescriptorProto_Label : int {
-  FieldDescriptorProto_Label_LABEL_OPTIONAL = 1,
-  FieldDescriptorProto_Label_LABEL_REQUIRED = 2,
-  FieldDescriptorProto_Label_LABEL_REPEATED = 3,
-};
-
-class PERFETTO_EXPORT OneofOptions : public ::protozero::CppMessageObj {
- public:
-  enum FieldNumbers {
-  };
-
-  OneofOptions();
-  ~OneofOptions() override;
-  OneofOptions(OneofOptions&&) noexcept;
-  OneofOptions& operator=(OneofOptions&&);
-  OneofOptions(const OneofOptions&);
-  OneofOptions& operator=(const OneofOptions&);
-  bool operator==(const OneofOptions&) const;
-  bool operator!=(const OneofOptions& other) const { return !(*this == other); }
-
-  bool ParseFromArray(const void*, size_t) override;
-  std::string SerializeAsString() const override;
-  std::vector<uint8_t> SerializeAsArray() const override;
-  void Serialize(::protozero::Message*) const;
-
- private:
-
-  // Allows to preserve unknown protobuf fields for compatibility
-  // with future versions of .proto files.
-  std::string unknown_fields_;
-
-  std::bitset<2> _has_field_{};
-};
-
-
-class PERFETTO_EXPORT EnumValueDescriptorProto : public ::protozero::CppMessageObj {
- public:
-  enum FieldNumbers {
-    kNameFieldNumber = 1,
-    kNumberFieldNumber = 2,
-  };
-
-  EnumValueDescriptorProto();
-  ~EnumValueDescriptorProto() override;
-  EnumValueDescriptorProto(EnumValueDescriptorProto&&) noexcept;
-  EnumValueDescriptorProto& operator=(EnumValueDescriptorProto&&);
-  EnumValueDescriptorProto(const EnumValueDescriptorProto&);
-  EnumValueDescriptorProto& operator=(const EnumValueDescriptorProto&);
-  bool operator==(const EnumValueDescriptorProto&) const;
-  bool operator!=(const EnumValueDescriptorProto& other) const { return !(*this == other); }
-
-  bool ParseFromArray(const void*, size_t) override;
-  std::string SerializeAsString() const override;
-  std::vector<uint8_t> SerializeAsArray() const override;
-  void Serialize(::protozero::Message*) const;
-
-  bool has_name() const { return _has_field_[1]; }
-  const std::string& name() const { return name_; }
-  void set_name(const std::string& value) { name_ = value; _has_field_.set(1); }
-
-  bool has_number() const { return _has_field_[2]; }
-  int32_t number() const { return number_; }
-  void set_number(int32_t value) { number_ = value; _has_field_.set(2); }
-
- private:
-  std::string name_{};
-  int32_t number_{};
-
-  // Allows to preserve unknown protobuf fields for compatibility
-  // with future versions of .proto files.
-  std::string unknown_fields_;
-
-  std::bitset<3> _has_field_{};
-};
-
-
-class PERFETTO_EXPORT EnumDescriptorProto : public ::protozero::CppMessageObj {
- public:
-  enum FieldNumbers {
-    kNameFieldNumber = 1,
-    kValueFieldNumber = 2,
-    kReservedNameFieldNumber = 5,
-  };
-
-  EnumDescriptorProto();
-  ~EnumDescriptorProto() override;
-  EnumDescriptorProto(EnumDescriptorProto&&) noexcept;
-  EnumDescriptorProto& operator=(EnumDescriptorProto&&);
-  EnumDescriptorProto(const EnumDescriptorProto&);
-  EnumDescriptorProto& operator=(const EnumDescriptorProto&);
-  bool operator==(const EnumDescriptorProto&) const;
-  bool operator!=(const EnumDescriptorProto& other) const { return !(*this == other); }
-
-  bool ParseFromArray(const void*, size_t) override;
-  std::string SerializeAsString() const override;
-  std::vector<uint8_t> SerializeAsArray() const override;
-  void Serialize(::protozero::Message*) const;
-
-  bool has_name() const { return _has_field_[1]; }
-  const std::string& name() const { return name_; }
-  void set_name(const std::string& value) { name_ = value; _has_field_.set(1); }
-
-  const std::vector<EnumValueDescriptorProto>& value() const { return value_; }
-  std::vector<EnumValueDescriptorProto>* mutable_value() { return &value_; }
-  int value_size() const;
-  void clear_value();
-  EnumValueDescriptorProto* add_value();
-
-  const std::vector<std::string>& reserved_name() const { return reserved_name_; }
-  std::vector<std::string>* mutable_reserved_name() { return &reserved_name_; }
-  int reserved_name_size() const { return static_cast<int>(reserved_name_.size()); }
-  void clear_reserved_name() { reserved_name_.clear(); }
-  void add_reserved_name(std::string value) { reserved_name_.emplace_back(value); }
-  std::string* add_reserved_name() { reserved_name_.emplace_back(); return &reserved_name_.back(); }
-
- private:
-  std::string name_{};
-  std::vector<EnumValueDescriptorProto> value_;
-  std::vector<std::string> reserved_name_;
-
-  // Allows to preserve unknown protobuf fields for compatibility
-  // with future versions of .proto files.
-  std::string unknown_fields_;
-
-  std::bitset<6> _has_field_{};
-};
-
-
-class PERFETTO_EXPORT OneofDescriptorProto : public ::protozero::CppMessageObj {
- public:
-  enum FieldNumbers {
-    kNameFieldNumber = 1,
-    kOptionsFieldNumber = 2,
-  };
-
-  OneofDescriptorProto();
-  ~OneofDescriptorProto() override;
-  OneofDescriptorProto(OneofDescriptorProto&&) noexcept;
-  OneofDescriptorProto& operator=(OneofDescriptorProto&&);
-  OneofDescriptorProto(const OneofDescriptorProto&);
-  OneofDescriptorProto& operator=(const OneofDescriptorProto&);
-  bool operator==(const OneofDescriptorProto&) const;
-  bool operator!=(const OneofDescriptorProto& other) const { return !(*this == other); }
-
-  bool ParseFromArray(const void*, size_t) override;
-  std::string SerializeAsString() const override;
-  std::vector<uint8_t> SerializeAsArray() const override;
-  void Serialize(::protozero::Message*) const;
-
-  bool has_name() const { return _has_field_[1]; }
-  const std::string& name() const { return name_; }
-  void set_name(const std::string& value) { name_ = value; _has_field_.set(1); }
-
-  bool has_options() const { return _has_field_[2]; }
-  const OneofOptions& options() const { return *options_; }
-  OneofOptions* mutable_options() { _has_field_.set(2); return options_.get(); }
-
- private:
-  std::string name_{};
-  ::protozero::CopyablePtr<OneofOptions> options_;
-
-  // Allows to preserve unknown protobuf fields for compatibility
-  // with future versions of .proto files.
-  std::string unknown_fields_;
-
-  std::bitset<3> _has_field_{};
-};
-
-
-class PERFETTO_EXPORT FieldDescriptorProto : public ::protozero::CppMessageObj {
- public:
-  using Type = FieldDescriptorProto_Type;
-  static constexpr auto TYPE_DOUBLE = FieldDescriptorProto_Type_TYPE_DOUBLE;
-  static constexpr auto TYPE_FLOAT = FieldDescriptorProto_Type_TYPE_FLOAT;
-  static constexpr auto TYPE_INT64 = FieldDescriptorProto_Type_TYPE_INT64;
-  static constexpr auto TYPE_UINT64 = FieldDescriptorProto_Type_TYPE_UINT64;
-  static constexpr auto TYPE_INT32 = FieldDescriptorProto_Type_TYPE_INT32;
-  static constexpr auto TYPE_FIXED64 = FieldDescriptorProto_Type_TYPE_FIXED64;
-  static constexpr auto TYPE_FIXED32 = FieldDescriptorProto_Type_TYPE_FIXED32;
-  static constexpr auto TYPE_BOOL = FieldDescriptorProto_Type_TYPE_BOOL;
-  static constexpr auto TYPE_STRING = FieldDescriptorProto_Type_TYPE_STRING;
-  static constexpr auto TYPE_GROUP = FieldDescriptorProto_Type_TYPE_GROUP;
-  static constexpr auto TYPE_MESSAGE = FieldDescriptorProto_Type_TYPE_MESSAGE;
-  static constexpr auto TYPE_BYTES = FieldDescriptorProto_Type_TYPE_BYTES;
-  static constexpr auto TYPE_UINT32 = FieldDescriptorProto_Type_TYPE_UINT32;
-  static constexpr auto TYPE_ENUM = FieldDescriptorProto_Type_TYPE_ENUM;
-  static constexpr auto TYPE_SFIXED32 = FieldDescriptorProto_Type_TYPE_SFIXED32;
-  static constexpr auto TYPE_SFIXED64 = FieldDescriptorProto_Type_TYPE_SFIXED64;
-  static constexpr auto TYPE_SINT32 = FieldDescriptorProto_Type_TYPE_SINT32;
-  static constexpr auto TYPE_SINT64 = FieldDescriptorProto_Type_TYPE_SINT64;
-  static constexpr auto Type_MIN = FieldDescriptorProto_Type_TYPE_DOUBLE;
-  static constexpr auto Type_MAX = FieldDescriptorProto_Type_TYPE_SINT64;
-  using Label = FieldDescriptorProto_Label;
-  static constexpr auto LABEL_OPTIONAL = FieldDescriptorProto_Label_LABEL_OPTIONAL;
-  static constexpr auto LABEL_REQUIRED = FieldDescriptorProto_Label_LABEL_REQUIRED;
-  static constexpr auto LABEL_REPEATED = FieldDescriptorProto_Label_LABEL_REPEATED;
-  static constexpr auto Label_MIN = FieldDescriptorProto_Label_LABEL_OPTIONAL;
-  static constexpr auto Label_MAX = FieldDescriptorProto_Label_LABEL_REPEATED;
-  enum FieldNumbers {
-    kNameFieldNumber = 1,
-    kNumberFieldNumber = 3,
-    kLabelFieldNumber = 4,
-    kTypeFieldNumber = 5,
-    kTypeNameFieldNumber = 6,
-    kExtendeeFieldNumber = 2,
-    kDefaultValueFieldNumber = 7,
-    kOneofIndexFieldNumber = 9,
-  };
-
-  FieldDescriptorProto();
-  ~FieldDescriptorProto() override;
-  FieldDescriptorProto(FieldDescriptorProto&&) noexcept;
-  FieldDescriptorProto& operator=(FieldDescriptorProto&&);
-  FieldDescriptorProto(const FieldDescriptorProto&);
-  FieldDescriptorProto& operator=(const FieldDescriptorProto&);
-  bool operator==(const FieldDescriptorProto&) const;
-  bool operator!=(const FieldDescriptorProto& other) const { return !(*this == other); }
-
-  bool ParseFromArray(const void*, size_t) override;
-  std::string SerializeAsString() const override;
-  std::vector<uint8_t> SerializeAsArray() const override;
-  void Serialize(::protozero::Message*) const;
-
-  bool has_name() const { return _has_field_[1]; }
-  const std::string& name() const { return name_; }
-  void set_name(const std::string& value) { name_ = value; _has_field_.set(1); }
-
-  bool has_number() const { return _has_field_[3]; }
-  int32_t number() const { return number_; }
-  void set_number(int32_t value) { number_ = value; _has_field_.set(3); }
-
-  bool has_label() const { return _has_field_[4]; }
-  FieldDescriptorProto_Label label() const { return label_; }
-  void set_label(FieldDescriptorProto_Label value) { label_ = value; _has_field_.set(4); }
-
-  bool has_type() const { return _has_field_[5]; }
-  FieldDescriptorProto_Type type() const { return type_; }
-  void set_type(FieldDescriptorProto_Type value) { type_ = value; _has_field_.set(5); }
-
-  bool has_type_name() const { return _has_field_[6]; }
-  const std::string& type_name() const { return type_name_; }
-  void set_type_name(const std::string& value) { type_name_ = value; _has_field_.set(6); }
-
-  bool has_extendee() const { return _has_field_[2]; }
-  const std::string& extendee() const { return extendee_; }
-  void set_extendee(const std::string& value) { extendee_ = value; _has_field_.set(2); }
-
-  bool has_default_value() const { return _has_field_[7]; }
-  const std::string& default_value() const { return default_value_; }
-  void set_default_value(const std::string& value) { default_value_ = value; _has_field_.set(7); }
-
-  bool has_oneof_index() const { return _has_field_[9]; }
-  int32_t oneof_index() const { return oneof_index_; }
-  void set_oneof_index(int32_t value) { oneof_index_ = value; _has_field_.set(9); }
-
- private:
-  std::string name_{};
-  int32_t number_{};
-  FieldDescriptorProto_Label label_{};
-  FieldDescriptorProto_Type type_{};
-  std::string type_name_{};
-  std::string extendee_{};
-  std::string default_value_{};
-  int32_t oneof_index_{};
-
-  // Allows to preserve unknown protobuf fields for compatibility
-  // with future versions of .proto files.
-  std::string unknown_fields_;
-
-  std::bitset<10> _has_field_{};
-};
-
-
-class PERFETTO_EXPORT DescriptorProto : public ::protozero::CppMessageObj {
- public:
-  using ReservedRange = DescriptorProto_ReservedRange;
-  enum FieldNumbers {
-    kNameFieldNumber = 1,
-    kFieldFieldNumber = 2,
-    kExtensionFieldNumber = 6,
-    kNestedTypeFieldNumber = 3,
-    kEnumTypeFieldNumber = 4,
-    kOneofDeclFieldNumber = 8,
-    kReservedRangeFieldNumber = 9,
-    kReservedNameFieldNumber = 10,
-  };
-
-  DescriptorProto();
-  ~DescriptorProto() override;
-  DescriptorProto(DescriptorProto&&) noexcept;
-  DescriptorProto& operator=(DescriptorProto&&);
-  DescriptorProto(const DescriptorProto&);
-  DescriptorProto& operator=(const DescriptorProto&);
-  bool operator==(const DescriptorProto&) const;
-  bool operator!=(const DescriptorProto& other) const { return !(*this == other); }
-
-  bool ParseFromArray(const void*, size_t) override;
-  std::string SerializeAsString() const override;
-  std::vector<uint8_t> SerializeAsArray() const override;
-  void Serialize(::protozero::Message*) const;
-
-  bool has_name() const { return _has_field_[1]; }
-  const std::string& name() const { return name_; }
-  void set_name(const std::string& value) { name_ = value; _has_field_.set(1); }
-
-  const std::vector<FieldDescriptorProto>& field() const { return field_; }
-  std::vector<FieldDescriptorProto>* mutable_field() { return &field_; }
-  int field_size() const;
-  void clear_field();
-  FieldDescriptorProto* add_field();
-
-  const std::vector<FieldDescriptorProto>& extension() const { return extension_; }
-  std::vector<FieldDescriptorProto>* mutable_extension() { return &extension_; }
-  int extension_size() const;
-  void clear_extension();
-  FieldDescriptorProto* add_extension();
-
-  const std::vector<DescriptorProto>& nested_type() const { return nested_type_; }
-  std::vector<DescriptorProto>* mutable_nested_type() { return &nested_type_; }
-  int nested_type_size() const;
-  void clear_nested_type();
-  DescriptorProto* add_nested_type();
-
-  const std::vector<EnumDescriptorProto>& enum_type() const { return enum_type_; }
-  std::vector<EnumDescriptorProto>* mutable_enum_type() { return &enum_type_; }
-  int enum_type_size() const;
-  void clear_enum_type();
-  EnumDescriptorProto* add_enum_type();
-
-  const std::vector<OneofDescriptorProto>& oneof_decl() const { return oneof_decl_; }
-  std::vector<OneofDescriptorProto>* mutable_oneof_decl() { return &oneof_decl_; }
-  int oneof_decl_size() const;
-  void clear_oneof_decl();
-  OneofDescriptorProto* add_oneof_decl();
-
-  const std::vector<DescriptorProto_ReservedRange>& reserved_range() const { return reserved_range_; }
-  std::vector<DescriptorProto_ReservedRange>* mutable_reserved_range() { return &reserved_range_; }
-  int reserved_range_size() const;
-  void clear_reserved_range();
-  DescriptorProto_ReservedRange* add_reserved_range();
-
-  const std::vector<std::string>& reserved_name() const { return reserved_name_; }
-  std::vector<std::string>* mutable_reserved_name() { return &reserved_name_; }
-  int reserved_name_size() const { return static_cast<int>(reserved_name_.size()); }
-  void clear_reserved_name() { reserved_name_.clear(); }
-  void add_reserved_name(std::string value) { reserved_name_.emplace_back(value); }
-  std::string* add_reserved_name() { reserved_name_.emplace_back(); return &reserved_name_.back(); }
-
- private:
-  std::string name_{};
-  std::vector<FieldDescriptorProto> field_;
-  std::vector<FieldDescriptorProto> extension_;
-  std::vector<DescriptorProto> nested_type_;
-  std::vector<EnumDescriptorProto> enum_type_;
-  std::vector<OneofDescriptorProto> oneof_decl_;
-  std::vector<DescriptorProto_ReservedRange> reserved_range_;
-  std::vector<std::string> reserved_name_;
-
-  // Allows to preserve unknown protobuf fields for compatibility
-  // with future versions of .proto files.
-  std::string unknown_fields_;
-
-  std::bitset<11> _has_field_{};
-};
-
-
-class PERFETTO_EXPORT DescriptorProto_ReservedRange : public ::protozero::CppMessageObj {
- public:
-  enum FieldNumbers {
-    kStartFieldNumber = 1,
-    kEndFieldNumber = 2,
-  };
-
-  DescriptorProto_ReservedRange();
-  ~DescriptorProto_ReservedRange() override;
-  DescriptorProto_ReservedRange(DescriptorProto_ReservedRange&&) noexcept;
-  DescriptorProto_ReservedRange& operator=(DescriptorProto_ReservedRange&&);
-  DescriptorProto_ReservedRange(const DescriptorProto_ReservedRange&);
-  DescriptorProto_ReservedRange& operator=(const DescriptorProto_ReservedRange&);
-  bool operator==(const DescriptorProto_ReservedRange&) const;
-  bool operator!=(const DescriptorProto_ReservedRange& other) const { return !(*this == other); }
-
-  bool ParseFromArray(const void*, size_t) override;
-  std::string SerializeAsString() const override;
-  std::vector<uint8_t> SerializeAsArray() const override;
-  void Serialize(::protozero::Message*) const;
-
-  bool has_start() const { return _has_field_[1]; }
-  int32_t start() const { return start_; }
-  void set_start(int32_t value) { start_ = value; _has_field_.set(1); }
-
-  bool has_end() const { return _has_field_[2]; }
-  int32_t end() const { return end_; }
-  void set_end(int32_t value) { end_ = value; _has_field_.set(2); }
-
- private:
-  int32_t start_{};
-  int32_t end_{};
-
-  // Allows to preserve unknown protobuf fields for compatibility
-  // with future versions of .proto files.
-  std::string unknown_fields_;
-
-  std::bitset<3> _has_field_{};
-};
-
-
-class PERFETTO_EXPORT FileDescriptorProto : public ::protozero::CppMessageObj {
- public:
-  enum FieldNumbers {
-    kNameFieldNumber = 1,
-    kPackageFieldNumber = 2,
-    kDependencyFieldNumber = 3,
-    kPublicDependencyFieldNumber = 10,
-    kWeakDependencyFieldNumber = 11,
-    kMessageTypeFieldNumber = 4,
-    kEnumTypeFieldNumber = 5,
-    kExtensionFieldNumber = 7,
-  };
-
-  FileDescriptorProto();
-  ~FileDescriptorProto() override;
-  FileDescriptorProto(FileDescriptorProto&&) noexcept;
-  FileDescriptorProto& operator=(FileDescriptorProto&&);
-  FileDescriptorProto(const FileDescriptorProto&);
-  FileDescriptorProto& operator=(const FileDescriptorProto&);
-  bool operator==(const FileDescriptorProto&) const;
-  bool operator!=(const FileDescriptorProto& other) const { return !(*this == other); }
-
-  bool ParseFromArray(const void*, size_t) override;
-  std::string SerializeAsString() const override;
-  std::vector<uint8_t> SerializeAsArray() const override;
-  void Serialize(::protozero::Message*) const;
-
-  bool has_name() const { return _has_field_[1]; }
-  const std::string& name() const { return name_; }
-  void set_name(const std::string& value) { name_ = value; _has_field_.set(1); }
-
-  bool has_package() const { return _has_field_[2]; }
-  const std::string& package() const { return package_; }
-  void set_package(const std::string& value) { package_ = value; _has_field_.set(2); }
-
-  const std::vector<std::string>& dependency() const { return dependency_; }
-  std::vector<std::string>* mutable_dependency() { return &dependency_; }
-  int dependency_size() const { return static_cast<int>(dependency_.size()); }
-  void clear_dependency() { dependency_.clear(); }
-  void add_dependency(std::string value) { dependency_.emplace_back(value); }
-  std::string* add_dependency() { dependency_.emplace_back(); return &dependency_.back(); }
-
-  const std::vector<int32_t>& public_dependency() const { return public_dependency_; }
-  std::vector<int32_t>* mutable_public_dependency() { return &public_dependency_; }
-  int public_dependency_size() const { return static_cast<int>(public_dependency_.size()); }
-  void clear_public_dependency() { public_dependency_.clear(); }
-  void add_public_dependency(int32_t value) { public_dependency_.emplace_back(value); }
-  int32_t* add_public_dependency() { public_dependency_.emplace_back(); return &public_dependency_.back(); }
-
-  const std::vector<int32_t>& weak_dependency() const { return weak_dependency_; }
-  std::vector<int32_t>* mutable_weak_dependency() { return &weak_dependency_; }
-  int weak_dependency_size() const { return static_cast<int>(weak_dependency_.size()); }
-  void clear_weak_dependency() { weak_dependency_.clear(); }
-  void add_weak_dependency(int32_t value) { weak_dependency_.emplace_back(value); }
-  int32_t* add_weak_dependency() { weak_dependency_.emplace_back(); return &weak_dependency_.back(); }
-
-  const std::vector<DescriptorProto>& message_type() const { return message_type_; }
-  std::vector<DescriptorProto>* mutable_message_type() { return &message_type_; }
-  int message_type_size() const;
-  void clear_message_type();
-  DescriptorProto* add_message_type();
-
-  const std::vector<EnumDescriptorProto>& enum_type() const { return enum_type_; }
-  std::vector<EnumDescriptorProto>* mutable_enum_type() { return &enum_type_; }
-  int enum_type_size() const;
-  void clear_enum_type();
-  EnumDescriptorProto* add_enum_type();
-
-  const std::vector<FieldDescriptorProto>& extension() const { return extension_; }
-  std::vector<FieldDescriptorProto>* mutable_extension() { return &extension_; }
-  int extension_size() const;
-  void clear_extension();
-  FieldDescriptorProto* add_extension();
-
- private:
-  std::string name_{};
-  std::string package_{};
-  std::vector<std::string> dependency_;
-  std::vector<int32_t> public_dependency_;
-  std::vector<int32_t> weak_dependency_;
-  std::vector<DescriptorProto> message_type_;
-  std::vector<EnumDescriptorProto> enum_type_;
-  std::vector<FieldDescriptorProto> extension_;
-
-  // Allows to preserve unknown protobuf fields for compatibility
-  // with future versions of .proto files.
-  std::string unknown_fields_;
-
-  std::bitset<12> _has_field_{};
-};
-
-
-class PERFETTO_EXPORT FileDescriptorSet : public ::protozero::CppMessageObj {
- public:
-  enum FieldNumbers {
-    kFileFieldNumber = 1,
-  };
-
-  FileDescriptorSet();
-  ~FileDescriptorSet() override;
-  FileDescriptorSet(FileDescriptorSet&&) noexcept;
-  FileDescriptorSet& operator=(FileDescriptorSet&&);
-  FileDescriptorSet(const FileDescriptorSet&);
-  FileDescriptorSet& operator=(const FileDescriptorSet&);
-  bool operator==(const FileDescriptorSet&) const;
-  bool operator!=(const FileDescriptorSet& other) const { return !(*this == other); }
-
-  bool ParseFromArray(const void*, size_t) override;
-  std::string SerializeAsString() const override;
-  std::vector<uint8_t> SerializeAsArray() const override;
-  void Serialize(::protozero::Message*) const;
-
-  const std::vector<FileDescriptorProto>& file() const { return file_; }
-  std::vector<FileDescriptorProto>* mutable_file() { return &file_; }
-  int file_size() const;
-  void clear_file();
-  FileDescriptorProto* add_file();
-
- private:
-  std::vector<FileDescriptorProto> file_;
-
-  // Allows to preserve unknown protobuf fields for compatibility
-  // with future versions of .proto files.
-  std::string unknown_fields_;
-
-  std::bitset<2> _has_field_{};
-};
-
-}  // namespace perfetto
-}  // namespace protos
-}  // namespace gen
-
-#endif  // PERFETTO_PROTOS_PROTOS_PERFETTO_COMMON_DESCRIPTOR_PROTO_CPP_H_
-// gen_amalgamated expanded: #include "perfetto/protozero/message.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/packed_repeated_fields.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/proto_decoder.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/scattered_heap_buffer.h"
-// DO NOT EDIT. Autogenerated by Perfetto cppgen_plugin
-#if defined(__GNUC__) || defined(__clang__)
-#pragma GCC diagnostic push
-#pragma GCC diagnostic ignored "-Wfloat-equal"
-#endif
-// gen_amalgamated expanded: #include "protos/perfetto/common/descriptor.gen.h"
-
-namespace perfetto {
-namespace protos {
-namespace gen {
-
-OneofOptions::OneofOptions() = default;
-OneofOptions::~OneofOptions() = default;
-OneofOptions::OneofOptions(const OneofOptions&) = default;
-OneofOptions& OneofOptions::operator=(const OneofOptions&) = default;
-OneofOptions::OneofOptions(OneofOptions&&) noexcept = default;
-OneofOptions& OneofOptions::operator=(OneofOptions&&) = default;
-
-bool OneofOptions::operator==(const OneofOptions& other) const {
-  return unknown_fields_ == other.unknown_fields_;
-}
-
-bool OneofOptions::ParseFromArray(const void* raw, size_t size) {
-  unknown_fields_.clear();
-  bool packed_error = false;
-
-  ::protozero::ProtoDecoder dec(raw, size);
-  for (auto field = dec.ReadField(); field.valid(); field = dec.ReadField()) {
-    if (field.id() < _has_field_.size()) {
-      _has_field_.set(field.id());
-    }
-    switch (field.id()) {
-      default:
-        field.SerializeAndAppendTo(&unknown_fields_);
-        break;
-    }
-  }
-  return !packed_error && !dec.bytes_left();
-}
-
-std::string OneofOptions::SerializeAsString() const {
-  ::protozero::HeapBuffered<::protozero::Message> msg;
-  Serialize(msg.get());
-  return msg.SerializeAsString();
-}
-
-std::vector<uint8_t> OneofOptions::SerializeAsArray() const {
-  ::protozero::HeapBuffered<::protozero::Message> msg;
-  Serialize(msg.get());
-  return msg.SerializeAsArray();
-}
-
-void OneofOptions::Serialize(::protozero::Message* msg) const {
-  msg->AppendRawProtoBytes(unknown_fields_.data(), unknown_fields_.size());
-}
-
-
-EnumValueDescriptorProto::EnumValueDescriptorProto() = default;
-EnumValueDescriptorProto::~EnumValueDescriptorProto() = default;
-EnumValueDescriptorProto::EnumValueDescriptorProto(const EnumValueDescriptorProto&) = default;
-EnumValueDescriptorProto& EnumValueDescriptorProto::operator=(const EnumValueDescriptorProto&) = default;
-EnumValueDescriptorProto::EnumValueDescriptorProto(EnumValueDescriptorProto&&) noexcept = default;
-EnumValueDescriptorProto& EnumValueDescriptorProto::operator=(EnumValueDescriptorProto&&) = default;
-
-bool EnumValueDescriptorProto::operator==(const EnumValueDescriptorProto& other) const {
-  return unknown_fields_ == other.unknown_fields_
-   && name_ == other.name_
-   && number_ == other.number_;
-}
-
-bool EnumValueDescriptorProto::ParseFromArray(const void* raw, size_t size) {
-  unknown_fields_.clear();
-  bool packed_error = false;
-
-  ::protozero::ProtoDecoder dec(raw, size);
-  for (auto field = dec.ReadField(); field.valid(); field = dec.ReadField()) {
-    if (field.id() < _has_field_.size()) {
-      _has_field_.set(field.id());
-    }
-    switch (field.id()) {
-      case 1 /* name */:
-        field.get(&name_);
-        break;
-      case 2 /* number */:
-        field.get(&number_);
-        break;
-      default:
-        field.SerializeAndAppendTo(&unknown_fields_);
-        break;
-    }
-  }
-  return !packed_error && !dec.bytes_left();
-}
-
-std::string EnumValueDescriptorProto::SerializeAsString() const {
-  ::protozero::HeapBuffered<::protozero::Message> msg;
-  Serialize(msg.get());
-  return msg.SerializeAsString();
-}
-
-std::vector<uint8_t> EnumValueDescriptorProto::SerializeAsArray() const {
-  ::protozero::HeapBuffered<::protozero::Message> msg;
-  Serialize(msg.get());
-  return msg.SerializeAsArray();
-}
-
-void EnumValueDescriptorProto::Serialize(::protozero::Message* msg) const {
-  // Field 1: name
-  if (_has_field_[1]) {
-    msg->AppendString(1, name_);
-  }
-
-  // Field 2: number
-  if (_has_field_[2]) {
-    msg->AppendVarInt(2, number_);
-  }
-
-  msg->AppendRawProtoBytes(unknown_fields_.data(), unknown_fields_.size());
-}
-
-
-EnumDescriptorProto::EnumDescriptorProto() = default;
-EnumDescriptorProto::~EnumDescriptorProto() = default;
-EnumDescriptorProto::EnumDescriptorProto(const EnumDescriptorProto&) = default;
-EnumDescriptorProto& EnumDescriptorProto::operator=(const EnumDescriptorProto&) = default;
-EnumDescriptorProto::EnumDescriptorProto(EnumDescriptorProto&&) noexcept = default;
-EnumDescriptorProto& EnumDescriptorProto::operator=(EnumDescriptorProto&&) = default;
-
-bool EnumDescriptorProto::operator==(const EnumDescriptorProto& other) const {
-  return unknown_fields_ == other.unknown_fields_
-   && name_ == other.name_
-   && value_ == other.value_
-   && reserved_name_ == other.reserved_name_;
-}
-
-int EnumDescriptorProto::value_size() const { return static_cast<int>(value_.size()); }
-void EnumDescriptorProto::clear_value() { value_.clear(); }
-EnumValueDescriptorProto* EnumDescriptorProto::add_value() { value_.emplace_back(); return &value_.back(); }
-bool EnumDescriptorProto::ParseFromArray(const void* raw, size_t size) {
-  value_.clear();
-  reserved_name_.clear();
-  unknown_fields_.clear();
-  bool packed_error = false;
-
-  ::protozero::ProtoDecoder dec(raw, size);
-  for (auto field = dec.ReadField(); field.valid(); field = dec.ReadField()) {
-    if (field.id() < _has_field_.size()) {
-      _has_field_.set(field.id());
-    }
-    switch (field.id()) {
-      case 1 /* name */:
-        field.get(&name_);
-        break;
-      case 2 /* value */:
-        value_.emplace_back();
-        value_.back().ParseFromArray(field.data(), field.size());
-        break;
-      case 5 /* reserved_name */:
-        reserved_name_.emplace_back();
-        field.get(&reserved_name_.back());
-        break;
-      default:
-        field.SerializeAndAppendTo(&unknown_fields_);
-        break;
-    }
-  }
-  return !packed_error && !dec.bytes_left();
-}
-
-std::string EnumDescriptorProto::SerializeAsString() const {
-  ::protozero::HeapBuffered<::protozero::Message> msg;
-  Serialize(msg.get());
-  return msg.SerializeAsString();
-}
-
-std::vector<uint8_t> EnumDescriptorProto::SerializeAsArray() const {
-  ::protozero::HeapBuffered<::protozero::Message> msg;
-  Serialize(msg.get());
-  return msg.SerializeAsArray();
-}
-
-void EnumDescriptorProto::Serialize(::protozero::Message* msg) const {
-  // Field 1: name
-  if (_has_field_[1]) {
-    msg->AppendString(1, name_);
-  }
-
-  // Field 2: value
-  for (auto& it : value_) {
-    it.Serialize(msg->BeginNestedMessage<::protozero::Message>(2));
-  }
-
-  // Field 5: reserved_name
-  for (auto& it : reserved_name_) {
-    msg->AppendString(5, it);
-  }
-
-  msg->AppendRawProtoBytes(unknown_fields_.data(), unknown_fields_.size());
-}
-
-
-OneofDescriptorProto::OneofDescriptorProto() = default;
-OneofDescriptorProto::~OneofDescriptorProto() = default;
-OneofDescriptorProto::OneofDescriptorProto(const OneofDescriptorProto&) = default;
-OneofDescriptorProto& OneofDescriptorProto::operator=(const OneofDescriptorProto&) = default;
-OneofDescriptorProto::OneofDescriptorProto(OneofDescriptorProto&&) noexcept = default;
-OneofDescriptorProto& OneofDescriptorProto::operator=(OneofDescriptorProto&&) = default;
-
-bool OneofDescriptorProto::operator==(const OneofDescriptorProto& other) const {
-  return unknown_fields_ == other.unknown_fields_
-   && name_ == other.name_
-   && options_ == other.options_;
-}
-
-bool OneofDescriptorProto::ParseFromArray(const void* raw, size_t size) {
-  unknown_fields_.clear();
-  bool packed_error = false;
-
-  ::protozero::ProtoDecoder dec(raw, size);
-  for (auto field = dec.ReadField(); field.valid(); field = dec.ReadField()) {
-    if (field.id() < _has_field_.size()) {
-      _has_field_.set(field.id());
-    }
-    switch (field.id()) {
-      case 1 /* name */:
-        field.get(&name_);
-        break;
-      case 2 /* options */:
-        (*options_).ParseFromArray(field.data(), field.size());
-        break;
-      default:
-        field.SerializeAndAppendTo(&unknown_fields_);
-        break;
-    }
-  }
-  return !packed_error && !dec.bytes_left();
-}
-
-std::string OneofDescriptorProto::SerializeAsString() const {
-  ::protozero::HeapBuffered<::protozero::Message> msg;
-  Serialize(msg.get());
-  return msg.SerializeAsString();
-}
-
-std::vector<uint8_t> OneofDescriptorProto::SerializeAsArray() const {
-  ::protozero::HeapBuffered<::protozero::Message> msg;
-  Serialize(msg.get());
-  return msg.SerializeAsArray();
-}
-
-void OneofDescriptorProto::Serialize(::protozero::Message* msg) const {
-  // Field 1: name
-  if (_has_field_[1]) {
-    msg->AppendString(1, name_);
-  }
-
-  // Field 2: options
-  if (_has_field_[2]) {
-    (*options_).Serialize(msg->BeginNestedMessage<::protozero::Message>(2));
-  }
-
-  msg->AppendRawProtoBytes(unknown_fields_.data(), unknown_fields_.size());
-}
-
-
-FieldDescriptorProto::FieldDescriptorProto() = default;
-FieldDescriptorProto::~FieldDescriptorProto() = default;
-FieldDescriptorProto::FieldDescriptorProto(const FieldDescriptorProto&) = default;
-FieldDescriptorProto& FieldDescriptorProto::operator=(const FieldDescriptorProto&) = default;
-FieldDescriptorProto::FieldDescriptorProto(FieldDescriptorProto&&) noexcept = default;
-FieldDescriptorProto& FieldDescriptorProto::operator=(FieldDescriptorProto&&) = default;
-
-bool FieldDescriptorProto::operator==(const FieldDescriptorProto& other) const {
-  return unknown_fields_ == other.unknown_fields_
-   && name_ == other.name_
-   && number_ == other.number_
-   && label_ == other.label_
-   && type_ == other.type_
-   && type_name_ == other.type_name_
-   && extendee_ == other.extendee_
-   && default_value_ == other.default_value_
-   && oneof_index_ == other.oneof_index_;
-}
-
-bool FieldDescriptorProto::ParseFromArray(const void* raw, size_t size) {
-  unknown_fields_.clear();
-  bool packed_error = false;
-
-  ::protozero::ProtoDecoder dec(raw, size);
-  for (auto field = dec.ReadField(); field.valid(); field = dec.ReadField()) {
-    if (field.id() < _has_field_.size()) {
-      _has_field_.set(field.id());
-    }
-    switch (field.id()) {
-      case 1 /* name */:
-        field.get(&name_);
-        break;
-      case 3 /* number */:
-        field.get(&number_);
-        break;
-      case 4 /* label */:
-        field.get(&label_);
-        break;
-      case 5 /* type */:
-        field.get(&type_);
-        break;
-      case 6 /* type_name */:
-        field.get(&type_name_);
-        break;
-      case 2 /* extendee */:
-        field.get(&extendee_);
-        break;
-      case 7 /* default_value */:
-        field.get(&default_value_);
-        break;
-      case 9 /* oneof_index */:
-        field.get(&oneof_index_);
-        break;
-      default:
-        field.SerializeAndAppendTo(&unknown_fields_);
-        break;
-    }
-  }
-  return !packed_error && !dec.bytes_left();
-}
-
-std::string FieldDescriptorProto::SerializeAsString() const {
-  ::protozero::HeapBuffered<::protozero::Message> msg;
-  Serialize(msg.get());
-  return msg.SerializeAsString();
-}
-
-std::vector<uint8_t> FieldDescriptorProto::SerializeAsArray() const {
-  ::protozero::HeapBuffered<::protozero::Message> msg;
-  Serialize(msg.get());
-  return msg.SerializeAsArray();
-}
-
-void FieldDescriptorProto::Serialize(::protozero::Message* msg) const {
-  // Field 1: name
-  if (_has_field_[1]) {
-    msg->AppendString(1, name_);
-  }
-
-  // Field 3: number
-  if (_has_field_[3]) {
-    msg->AppendVarInt(3, number_);
-  }
-
-  // Field 4: label
-  if (_has_field_[4]) {
-    msg->AppendVarInt(4, label_);
-  }
-
-  // Field 5: type
-  if (_has_field_[5]) {
-    msg->AppendVarInt(5, type_);
-  }
-
-  // Field 6: type_name
-  if (_has_field_[6]) {
-    msg->AppendString(6, type_name_);
-  }
-
-  // Field 2: extendee
-  if (_has_field_[2]) {
-    msg->AppendString(2, extendee_);
-  }
-
-  // Field 7: default_value
-  if (_has_field_[7]) {
-    msg->AppendString(7, default_value_);
-  }
-
-  // Field 9: oneof_index
-  if (_has_field_[9]) {
-    msg->AppendVarInt(9, oneof_index_);
-  }
-
-  msg->AppendRawProtoBytes(unknown_fields_.data(), unknown_fields_.size());
-}
-
-
-DescriptorProto::DescriptorProto() = default;
-DescriptorProto::~DescriptorProto() = default;
-DescriptorProto::DescriptorProto(const DescriptorProto&) = default;
-DescriptorProto& DescriptorProto::operator=(const DescriptorProto&) = default;
-DescriptorProto::DescriptorProto(DescriptorProto&&) noexcept = default;
-DescriptorProto& DescriptorProto::operator=(DescriptorProto&&) = default;
-
-bool DescriptorProto::operator==(const DescriptorProto& other) const {
-  return unknown_fields_ == other.unknown_fields_
-   && name_ == other.name_
-   && field_ == other.field_
-   && extension_ == other.extension_
-   && nested_type_ == other.nested_type_
-   && enum_type_ == other.enum_type_
-   && oneof_decl_ == other.oneof_decl_
-   && reserved_range_ == other.reserved_range_
-   && reserved_name_ == other.reserved_name_;
-}
-
-int DescriptorProto::field_size() const { return static_cast<int>(field_.size()); }
-void DescriptorProto::clear_field() { field_.clear(); }
-FieldDescriptorProto* DescriptorProto::add_field() { field_.emplace_back(); return &field_.back(); }
-int DescriptorProto::extension_size() const { return static_cast<int>(extension_.size()); }
-void DescriptorProto::clear_extension() { extension_.clear(); }
-FieldDescriptorProto* DescriptorProto::add_extension() { extension_.emplace_back(); return &extension_.back(); }
-int DescriptorProto::nested_type_size() const { return static_cast<int>(nested_type_.size()); }
-void DescriptorProto::clear_nested_type() { nested_type_.clear(); }
-DescriptorProto* DescriptorProto::add_nested_type() { nested_type_.emplace_back(); return &nested_type_.back(); }
-int DescriptorProto::enum_type_size() const { return static_cast<int>(enum_type_.size()); }
-void DescriptorProto::clear_enum_type() { enum_type_.clear(); }
-EnumDescriptorProto* DescriptorProto::add_enum_type() { enum_type_.emplace_back(); return &enum_type_.back(); }
-int DescriptorProto::oneof_decl_size() const { return static_cast<int>(oneof_decl_.size()); }
-void DescriptorProto::clear_oneof_decl() { oneof_decl_.clear(); }
-OneofDescriptorProto* DescriptorProto::add_oneof_decl() { oneof_decl_.emplace_back(); return &oneof_decl_.back(); }
-int DescriptorProto::reserved_range_size() const { return static_cast<int>(reserved_range_.size()); }
-void DescriptorProto::clear_reserved_range() { reserved_range_.clear(); }
-DescriptorProto_ReservedRange* DescriptorProto::add_reserved_range() { reserved_range_.emplace_back(); return &reserved_range_.back(); }
-bool DescriptorProto::ParseFromArray(const void* raw, size_t size) {
-  field_.clear();
-  extension_.clear();
-  nested_type_.clear();
-  enum_type_.clear();
-  oneof_decl_.clear();
-  reserved_range_.clear();
-  reserved_name_.clear();
-  unknown_fields_.clear();
-  bool packed_error = false;
-
-  ::protozero::ProtoDecoder dec(raw, size);
-  for (auto field = dec.ReadField(); field.valid(); field = dec.ReadField()) {
-    if (field.id() < _has_field_.size()) {
-      _has_field_.set(field.id());
-    }
-    switch (field.id()) {
-      case 1 /* name */:
-        field.get(&name_);
-        break;
-      case 2 /* field */:
-        field_.emplace_back();
-        field_.back().ParseFromArray(field.data(), field.size());
-        break;
-      case 6 /* extension */:
-        extension_.emplace_back();
-        extension_.back().ParseFromArray(field.data(), field.size());
-        break;
-      case 3 /* nested_type */:
-        nested_type_.emplace_back();
-        nested_type_.back().ParseFromArray(field.data(), field.size());
-        break;
-      case 4 /* enum_type */:
-        enum_type_.emplace_back();
-        enum_type_.back().ParseFromArray(field.data(), field.size());
-        break;
-      case 8 /* oneof_decl */:
-        oneof_decl_.emplace_back();
-        oneof_decl_.back().ParseFromArray(field.data(), field.size());
-        break;
-      case 9 /* reserved_range */:
-        reserved_range_.emplace_back();
-        reserved_range_.back().ParseFromArray(field.data(), field.size());
-        break;
-      case 10 /* reserved_name */:
-        reserved_name_.emplace_back();
-        field.get(&reserved_name_.back());
-        break;
-      default:
-        field.SerializeAndAppendTo(&unknown_fields_);
-        break;
-    }
-  }
-  return !packed_error && !dec.bytes_left();
-}
-
-std::string DescriptorProto::SerializeAsString() const {
-  ::protozero::HeapBuffered<::protozero::Message> msg;
-  Serialize(msg.get());
-  return msg.SerializeAsString();
-}
-
-std::vector<uint8_t> DescriptorProto::SerializeAsArray() const {
-  ::protozero::HeapBuffered<::protozero::Message> msg;
-  Serialize(msg.get());
-  return msg.SerializeAsArray();
-}
-
-void DescriptorProto::Serialize(::protozero::Message* msg) const {
-  // Field 1: name
-  if (_has_field_[1]) {
-    msg->AppendString(1, name_);
-  }
-
-  // Field 2: field
-  for (auto& it : field_) {
-    it.Serialize(msg->BeginNestedMessage<::protozero::Message>(2));
-  }
-
-  // Field 6: extension
-  for (auto& it : extension_) {
-    it.Serialize(msg->BeginNestedMessage<::protozero::Message>(6));
-  }
-
-  // Field 3: nested_type
-  for (auto& it : nested_type_) {
-    it.Serialize(msg->BeginNestedMessage<::protozero::Message>(3));
-  }
-
-  // Field 4: enum_type
-  for (auto& it : enum_type_) {
-    it.Serialize(msg->BeginNestedMessage<::protozero::Message>(4));
-  }
-
-  // Field 8: oneof_decl
-  for (auto& it : oneof_decl_) {
-    it.Serialize(msg->BeginNestedMessage<::protozero::Message>(8));
-  }
-
-  // Field 9: reserved_range
-  for (auto& it : reserved_range_) {
-    it.Serialize(msg->BeginNestedMessage<::protozero::Message>(9));
-  }
-
-  // Field 10: reserved_name
-  for (auto& it : reserved_name_) {
-    msg->AppendString(10, it);
-  }
-
-  msg->AppendRawProtoBytes(unknown_fields_.data(), unknown_fields_.size());
-}
-
-
-DescriptorProto_ReservedRange::DescriptorProto_ReservedRange() = default;
-DescriptorProto_ReservedRange::~DescriptorProto_ReservedRange() = default;
-DescriptorProto_ReservedRange::DescriptorProto_ReservedRange(const DescriptorProto_ReservedRange&) = default;
-DescriptorProto_ReservedRange& DescriptorProto_ReservedRange::operator=(const DescriptorProto_ReservedRange&) = default;
-DescriptorProto_ReservedRange::DescriptorProto_ReservedRange(DescriptorProto_ReservedRange&&) noexcept = default;
-DescriptorProto_ReservedRange& DescriptorProto_ReservedRange::operator=(DescriptorProto_ReservedRange&&) = default;
-
-bool DescriptorProto_ReservedRange::operator==(const DescriptorProto_ReservedRange& other) const {
-  return unknown_fields_ == other.unknown_fields_
-   && start_ == other.start_
-   && end_ == other.end_;
-}
-
-bool DescriptorProto_ReservedRange::ParseFromArray(const void* raw, size_t size) {
-  unknown_fields_.clear();
-  bool packed_error = false;
-
-  ::protozero::ProtoDecoder dec(raw, size);
-  for (auto field = dec.ReadField(); field.valid(); field = dec.ReadField()) {
-    if (field.id() < _has_field_.size()) {
-      _has_field_.set(field.id());
-    }
-    switch (field.id()) {
-      case 1 /* start */:
-        field.get(&start_);
-        break;
-      case 2 /* end */:
-        field.get(&end_);
-        break;
-      default:
-        field.SerializeAndAppendTo(&unknown_fields_);
-        break;
-    }
-  }
-  return !packed_error && !dec.bytes_left();
-}
-
-std::string DescriptorProto_ReservedRange::SerializeAsString() const {
-  ::protozero::HeapBuffered<::protozero::Message> msg;
-  Serialize(msg.get());
-  return msg.SerializeAsString();
-}
-
-std::vector<uint8_t> DescriptorProto_ReservedRange::SerializeAsArray() const {
-  ::protozero::HeapBuffered<::protozero::Message> msg;
-  Serialize(msg.get());
-  return msg.SerializeAsArray();
-}
-
-void DescriptorProto_ReservedRange::Serialize(::protozero::Message* msg) const {
-  // Field 1: start
-  if (_has_field_[1]) {
-    msg->AppendVarInt(1, start_);
-  }
-
-  // Field 2: end
-  if (_has_field_[2]) {
-    msg->AppendVarInt(2, end_);
-  }
-
-  msg->AppendRawProtoBytes(unknown_fields_.data(), unknown_fields_.size());
-}
-
-
-FileDescriptorProto::FileDescriptorProto() = default;
-FileDescriptorProto::~FileDescriptorProto() = default;
-FileDescriptorProto::FileDescriptorProto(const FileDescriptorProto&) = default;
-FileDescriptorProto& FileDescriptorProto::operator=(const FileDescriptorProto&) = default;
-FileDescriptorProto::FileDescriptorProto(FileDescriptorProto&&) noexcept = default;
-FileDescriptorProto& FileDescriptorProto::operator=(FileDescriptorProto&&) = default;
-
-bool FileDescriptorProto::operator==(const FileDescriptorProto& other) const {
-  return unknown_fields_ == other.unknown_fields_
-   && name_ == other.name_
-   && package_ == other.package_
-   && dependency_ == other.dependency_
-   && public_dependency_ == other.public_dependency_
-   && weak_dependency_ == other.weak_dependency_
-   && message_type_ == other.message_type_
-   && enum_type_ == other.enum_type_
-   && extension_ == other.extension_;
-}
-
-int FileDescriptorProto::message_type_size() const { return static_cast<int>(message_type_.size()); }
-void FileDescriptorProto::clear_message_type() { message_type_.clear(); }
-DescriptorProto* FileDescriptorProto::add_message_type() { message_type_.emplace_back(); return &message_type_.back(); }
-int FileDescriptorProto::enum_type_size() const { return static_cast<int>(enum_type_.size()); }
-void FileDescriptorProto::clear_enum_type() { enum_type_.clear(); }
-EnumDescriptorProto* FileDescriptorProto::add_enum_type() { enum_type_.emplace_back(); return &enum_type_.back(); }
-int FileDescriptorProto::extension_size() const { return static_cast<int>(extension_.size()); }
-void FileDescriptorProto::clear_extension() { extension_.clear(); }
-FieldDescriptorProto* FileDescriptorProto::add_extension() { extension_.emplace_back(); return &extension_.back(); }
-bool FileDescriptorProto::ParseFromArray(const void* raw, size_t size) {
-  dependency_.clear();
-  public_dependency_.clear();
-  weak_dependency_.clear();
-  message_type_.clear();
-  enum_type_.clear();
-  extension_.clear();
-  unknown_fields_.clear();
-  bool packed_error = false;
-
-  ::protozero::ProtoDecoder dec(raw, size);
-  for (auto field = dec.ReadField(); field.valid(); field = dec.ReadField()) {
-    if (field.id() < _has_field_.size()) {
-      _has_field_.set(field.id());
-    }
-    switch (field.id()) {
-      case 1 /* name */:
-        field.get(&name_);
-        break;
-      case 2 /* package */:
-        field.get(&package_);
-        break;
-      case 3 /* dependency */:
-        dependency_.emplace_back();
-        field.get(&dependency_.back());
-        break;
-      case 10 /* public_dependency */:
-        public_dependency_.emplace_back();
-        field.get(&public_dependency_.back());
-        break;
-      case 11 /* weak_dependency */:
-        weak_dependency_.emplace_back();
-        field.get(&weak_dependency_.back());
-        break;
-      case 4 /* message_type */:
-        message_type_.emplace_back();
-        message_type_.back().ParseFromArray(field.data(), field.size());
-        break;
-      case 5 /* enum_type */:
-        enum_type_.emplace_back();
-        enum_type_.back().ParseFromArray(field.data(), field.size());
-        break;
-      case 7 /* extension */:
-        extension_.emplace_back();
-        extension_.back().ParseFromArray(field.data(), field.size());
-        break;
-      default:
-        field.SerializeAndAppendTo(&unknown_fields_);
-        break;
-    }
-  }
-  return !packed_error && !dec.bytes_left();
-}
-
-std::string FileDescriptorProto::SerializeAsString() const {
-  ::protozero::HeapBuffered<::protozero::Message> msg;
-  Serialize(msg.get());
-  return msg.SerializeAsString();
-}
-
-std::vector<uint8_t> FileDescriptorProto::SerializeAsArray() const {
-  ::protozero::HeapBuffered<::protozero::Message> msg;
-  Serialize(msg.get());
-  return msg.SerializeAsArray();
-}
-
-void FileDescriptorProto::Serialize(::protozero::Message* msg) const {
-  // Field 1: name
-  if (_has_field_[1]) {
-    msg->AppendString(1, name_);
-  }
-
-  // Field 2: package
-  if (_has_field_[2]) {
-    msg->AppendString(2, package_);
-  }
-
-  // Field 3: dependency
-  for (auto& it : dependency_) {
-    msg->AppendString(3, it);
-  }
-
-  // Field 10: public_dependency
-  for (auto& it : public_dependency_) {
-    msg->AppendVarInt(10, it);
-  }
-
-  // Field 11: weak_dependency
-  for (auto& it : weak_dependency_) {
-    msg->AppendVarInt(11, it);
-  }
-
-  // Field 4: message_type
-  for (auto& it : message_type_) {
-    it.Serialize(msg->BeginNestedMessage<::protozero::Message>(4));
-  }
-
-  // Field 5: enum_type
-  for (auto& it : enum_type_) {
-    it.Serialize(msg->BeginNestedMessage<::protozero::Message>(5));
-  }
-
-  // Field 7: extension
-  for (auto& it : extension_) {
-    it.Serialize(msg->BeginNestedMessage<::protozero::Message>(7));
-  }
-
-  msg->AppendRawProtoBytes(unknown_fields_.data(), unknown_fields_.size());
-}
-
-
-FileDescriptorSet::FileDescriptorSet() = default;
-FileDescriptorSet::~FileDescriptorSet() = default;
-FileDescriptorSet::FileDescriptorSet(const FileDescriptorSet&) = default;
-FileDescriptorSet& FileDescriptorSet::operator=(const FileDescriptorSet&) = default;
-FileDescriptorSet::FileDescriptorSet(FileDescriptorSet&&) noexcept = default;
-FileDescriptorSet& FileDescriptorSet::operator=(FileDescriptorSet&&) = default;
-
-bool FileDescriptorSet::operator==(const FileDescriptorSet& other) const {
-  return unknown_fields_ == other.unknown_fields_
-   && file_ == other.file_;
-}
-
-int FileDescriptorSet::file_size() const { return static_cast<int>(file_.size()); }
-void FileDescriptorSet::clear_file() { file_.clear(); }
-FileDescriptorProto* FileDescriptorSet::add_file() { file_.emplace_back(); return &file_.back(); }
-bool FileDescriptorSet::ParseFromArray(const void* raw, size_t size) {
-  file_.clear();
-  unknown_fields_.clear();
-  bool packed_error = false;
-
-  ::protozero::ProtoDecoder dec(raw, size);
-  for (auto field = dec.ReadField(); field.valid(); field = dec.ReadField()) {
-    if (field.id() < _has_field_.size()) {
-      _has_field_.set(field.id());
-    }
-    switch (field.id()) {
-      case 1 /* file */:
-        file_.emplace_back();
-        file_.back().ParseFromArray(field.data(), field.size());
-        break;
-      default:
-        field.SerializeAndAppendTo(&unknown_fields_);
-        break;
-    }
-  }
-  return !packed_error && !dec.bytes_left();
-}
-
-std::string FileDescriptorSet::SerializeAsString() const {
-  ::protozero::HeapBuffered<::protozero::Message> msg;
-  Serialize(msg.get());
-  return msg.SerializeAsString();
-}
-
-std::vector<uint8_t> FileDescriptorSet::SerializeAsArray() const {
-  ::protozero::HeapBuffered<::protozero::Message> msg;
-  Serialize(msg.get());
-  return msg.SerializeAsArray();
-}
-
-void FileDescriptorSet::Serialize(::protozero::Message* msg) const {
-  // Field 1: file
-  for (auto& it : file_) {
-    it.Serialize(msg->BeginNestedMessage<::protozero::Message>(1));
-  }
-
-  msg->AppendRawProtoBytes(unknown_fields_.data(), unknown_fields_.size());
-}
-
-}  // namespace perfetto
-}  // namespace protos
-}  // namespace gen
-#if defined(__GNUC__) || defined(__clang__)
-#pragma GCC diagnostic pop
-#endif
-// gen_amalgamated begin source: gen/protos/perfetto/common/gpu_counter_descriptor.gen.cc
-// gen_amalgamated begin header: gen/protos/perfetto/common/gpu_counter_descriptor.gen.h
-// DO NOT EDIT. Autogenerated by Perfetto cppgen_plugin
-#ifndef PERFETTO_PROTOS_PROTOS_PERFETTO_COMMON_GPU_COUNTER_DESCRIPTOR_PROTO_CPP_H_
-#define PERFETTO_PROTOS_PROTOS_PERFETTO_COMMON_GPU_COUNTER_DESCRIPTOR_PROTO_CPP_H_
-
-#include <stdint.h>
-#include <bitset>
-#include <vector>
-#include <string>
-#include <type_traits>
-
-// gen_amalgamated expanded: #include "perfetto/protozero/cpp_message_obj.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/copyable_ptr.h"
-// gen_amalgamated expanded: #include "perfetto/base/export.h"
-
-namespace perfetto {
-namespace protos {
-namespace gen {
-class GpuCounterDescriptor;
-class GpuCounterDescriptor_GpuCounterBlock;
-class GpuCounterDescriptor_GpuCounterSpec;
-enum GpuCounterDescriptor_GpuCounterGroup : int;
-enum GpuCounterDescriptor_MeasureUnit : int;
-}  // namespace perfetto
-}  // namespace protos
-}  // namespace gen
-
-namespace protozero {
-class Message;
-}  // namespace protozero
-
-namespace perfetto {
-namespace protos {
-namespace gen {
-enum GpuCounterDescriptor_GpuCounterGroup : int {
-  GpuCounterDescriptor_GpuCounterGroup_UNCLASSIFIED = 0,
-  GpuCounterDescriptor_GpuCounterGroup_SYSTEM = 1,
-  GpuCounterDescriptor_GpuCounterGroup_VERTICES = 2,
-  GpuCounterDescriptor_GpuCounterGroup_FRAGMENTS = 3,
-  GpuCounterDescriptor_GpuCounterGroup_PRIMITIVES = 4,
-  GpuCounterDescriptor_GpuCounterGroup_MEMORY = 5,
-  GpuCounterDescriptor_GpuCounterGroup_COMPUTE = 6,
-};
-enum GpuCounterDescriptor_MeasureUnit : int {
-  GpuCounterDescriptor_MeasureUnit_NONE = 0,
-  GpuCounterDescriptor_MeasureUnit_BIT = 1,
-  GpuCounterDescriptor_MeasureUnit_KILOBIT = 2,
-  GpuCounterDescriptor_MeasureUnit_MEGABIT = 3,
-  GpuCounterDescriptor_MeasureUnit_GIGABIT = 4,
-  GpuCounterDescriptor_MeasureUnit_TERABIT = 5,
-  GpuCounterDescriptor_MeasureUnit_PETABIT = 6,
-  GpuCounterDescriptor_MeasureUnit_BYTE = 7,
-  GpuCounterDescriptor_MeasureUnit_KILOBYTE = 8,
-  GpuCounterDescriptor_MeasureUnit_MEGABYTE = 9,
-  GpuCounterDescriptor_MeasureUnit_GIGABYTE = 10,
-  GpuCounterDescriptor_MeasureUnit_TERABYTE = 11,
-  GpuCounterDescriptor_MeasureUnit_PETABYTE = 12,
-  GpuCounterDescriptor_MeasureUnit_HERTZ = 13,
-  GpuCounterDescriptor_MeasureUnit_KILOHERTZ = 14,
-  GpuCounterDescriptor_MeasureUnit_MEGAHERTZ = 15,
-  GpuCounterDescriptor_MeasureUnit_GIGAHERTZ = 16,
-  GpuCounterDescriptor_MeasureUnit_TERAHERTZ = 17,
-  GpuCounterDescriptor_MeasureUnit_PETAHERTZ = 18,
-  GpuCounterDescriptor_MeasureUnit_NANOSECOND = 19,
-  GpuCounterDescriptor_MeasureUnit_MICROSECOND = 20,
-  GpuCounterDescriptor_MeasureUnit_MILLISECOND = 21,
-  GpuCounterDescriptor_MeasureUnit_SECOND = 22,
-  GpuCounterDescriptor_MeasureUnit_MINUTE = 23,
-  GpuCounterDescriptor_MeasureUnit_HOUR = 24,
-  GpuCounterDescriptor_MeasureUnit_VERTEX = 25,
-  GpuCounterDescriptor_MeasureUnit_PIXEL = 26,
-  GpuCounterDescriptor_MeasureUnit_TRIANGLE = 27,
-  GpuCounterDescriptor_MeasureUnit_PRIMITIVE = 38,
-  GpuCounterDescriptor_MeasureUnit_FRAGMENT = 39,
-  GpuCounterDescriptor_MeasureUnit_MILLIWATT = 28,
-  GpuCounterDescriptor_MeasureUnit_WATT = 29,
-  GpuCounterDescriptor_MeasureUnit_KILOWATT = 30,
-  GpuCounterDescriptor_MeasureUnit_JOULE = 31,
-  GpuCounterDescriptor_MeasureUnit_VOLT = 32,
-  GpuCounterDescriptor_MeasureUnit_AMPERE = 33,
-  GpuCounterDescriptor_MeasureUnit_CELSIUS = 34,
-  GpuCounterDescriptor_MeasureUnit_FAHRENHEIT = 35,
-  GpuCounterDescriptor_MeasureUnit_KELVIN = 36,
-  GpuCounterDescriptor_MeasureUnit_PERCENT = 37,
-  GpuCounterDescriptor_MeasureUnit_INSTRUCTION = 40,
-};
-
-class PERFETTO_EXPORT GpuCounterDescriptor : public ::protozero::CppMessageObj {
- public:
-  using GpuCounterSpec = GpuCounterDescriptor_GpuCounterSpec;
-  using GpuCounterBlock = GpuCounterDescriptor_GpuCounterBlock;
-  using GpuCounterGroup = GpuCounterDescriptor_GpuCounterGroup;
-  static constexpr auto UNCLASSIFIED = GpuCounterDescriptor_GpuCounterGroup_UNCLASSIFIED;
-  static constexpr auto SYSTEM = GpuCounterDescriptor_GpuCounterGroup_SYSTEM;
-  static constexpr auto VERTICES = GpuCounterDescriptor_GpuCounterGroup_VERTICES;
-  static constexpr auto FRAGMENTS = GpuCounterDescriptor_GpuCounterGroup_FRAGMENTS;
-  static constexpr auto PRIMITIVES = GpuCounterDescriptor_GpuCounterGroup_PRIMITIVES;
-  static constexpr auto MEMORY = GpuCounterDescriptor_GpuCounterGroup_MEMORY;
-  static constexpr auto COMPUTE = GpuCounterDescriptor_GpuCounterGroup_COMPUTE;
-  static constexpr auto GpuCounterGroup_MIN = GpuCounterDescriptor_GpuCounterGroup_UNCLASSIFIED;
-  static constexpr auto GpuCounterGroup_MAX = GpuCounterDescriptor_GpuCounterGroup_COMPUTE;
-  using MeasureUnit = GpuCounterDescriptor_MeasureUnit;
-  static constexpr auto NONE = GpuCounterDescriptor_MeasureUnit_NONE;
-  static constexpr auto BIT = GpuCounterDescriptor_MeasureUnit_BIT;
-  static constexpr auto KILOBIT = GpuCounterDescriptor_MeasureUnit_KILOBIT;
-  static constexpr auto MEGABIT = GpuCounterDescriptor_MeasureUnit_MEGABIT;
-  static constexpr auto GIGABIT = GpuCounterDescriptor_MeasureUnit_GIGABIT;
-  static constexpr auto TERABIT = GpuCounterDescriptor_MeasureUnit_TERABIT;
-  static constexpr auto PETABIT = GpuCounterDescriptor_MeasureUnit_PETABIT;
-  static constexpr auto BYTE = GpuCounterDescriptor_MeasureUnit_BYTE;
-  static constexpr auto KILOBYTE = GpuCounterDescriptor_MeasureUnit_KILOBYTE;
-  static constexpr auto MEGABYTE = GpuCounterDescriptor_MeasureUnit_MEGABYTE;
-  static constexpr auto GIGABYTE = GpuCounterDescriptor_MeasureUnit_GIGABYTE;
-  static constexpr auto TERABYTE = GpuCounterDescriptor_MeasureUnit_TERABYTE;
-  static constexpr auto PETABYTE = GpuCounterDescriptor_MeasureUnit_PETABYTE;
-  static constexpr auto HERTZ = GpuCounterDescriptor_MeasureUnit_HERTZ;
-  static constexpr auto KILOHERTZ = GpuCounterDescriptor_MeasureUnit_KILOHERTZ;
-  static constexpr auto MEGAHERTZ = GpuCounterDescriptor_MeasureUnit_MEGAHERTZ;
-  static constexpr auto GIGAHERTZ = GpuCounterDescriptor_MeasureUnit_GIGAHERTZ;
-  static constexpr auto TERAHERTZ = GpuCounterDescriptor_MeasureUnit_TERAHERTZ;
-  static constexpr auto PETAHERTZ = GpuCounterDescriptor_MeasureUnit_PETAHERTZ;
-  static constexpr auto NANOSECOND = GpuCounterDescriptor_MeasureUnit_NANOSECOND;
-  static constexpr auto MICROSECOND = GpuCounterDescriptor_MeasureUnit_MICROSECOND;
-  static constexpr auto MILLISECOND = GpuCounterDescriptor_MeasureUnit_MILLISECOND;
-  static constexpr auto SECOND = GpuCounterDescriptor_MeasureUnit_SECOND;
-  static constexpr auto MINUTE = GpuCounterDescriptor_MeasureUnit_MINUTE;
-  static constexpr auto HOUR = GpuCounterDescriptor_MeasureUnit_HOUR;
-  static constexpr auto VERTEX = GpuCounterDescriptor_MeasureUnit_VERTEX;
-  static constexpr auto PIXEL = GpuCounterDescriptor_MeasureUnit_PIXEL;
-  static constexpr auto TRIANGLE = GpuCounterDescriptor_MeasureUnit_TRIANGLE;
-  static constexpr auto PRIMITIVE = GpuCounterDescriptor_MeasureUnit_PRIMITIVE;
-  static constexpr auto FRAGMENT = GpuCounterDescriptor_MeasureUnit_FRAGMENT;
-  static constexpr auto MILLIWATT = GpuCounterDescriptor_MeasureUnit_MILLIWATT;
-  static constexpr auto WATT = GpuCounterDescriptor_MeasureUnit_WATT;
-  static constexpr auto KILOWATT = GpuCounterDescriptor_MeasureUnit_KILOWATT;
-  static constexpr auto JOULE = GpuCounterDescriptor_MeasureUnit_JOULE;
-  static constexpr auto VOLT = GpuCounterDescriptor_MeasureUnit_VOLT;
-  static constexpr auto AMPERE = GpuCounterDescriptor_MeasureUnit_AMPERE;
-  static constexpr auto CELSIUS = GpuCounterDescriptor_MeasureUnit_CELSIUS;
-  static constexpr auto FAHRENHEIT = GpuCounterDescriptor_MeasureUnit_FAHRENHEIT;
-  static constexpr auto KELVIN = GpuCounterDescriptor_MeasureUnit_KELVIN;
-  static constexpr auto PERCENT = GpuCounterDescriptor_MeasureUnit_PERCENT;
-  static constexpr auto INSTRUCTION = GpuCounterDescriptor_MeasureUnit_INSTRUCTION;
-  static constexpr auto MeasureUnit_MIN = GpuCounterDescriptor_MeasureUnit_NONE;
-  static constexpr auto MeasureUnit_MAX = GpuCounterDescriptor_MeasureUnit_INSTRUCTION;
-  enum FieldNumbers {
-    kSpecsFieldNumber = 1,
-    kBlocksFieldNumber = 2,
-    kMinSamplingPeriodNsFieldNumber = 3,
-    kMaxSamplingPeriodNsFieldNumber = 4,
-    kSupportsInstrumentedSamplingFieldNumber = 5,
-  };
-
-  GpuCounterDescriptor();
-  ~GpuCounterDescriptor() override;
-  GpuCounterDescriptor(GpuCounterDescriptor&&) noexcept;
-  GpuCounterDescriptor& operator=(GpuCounterDescriptor&&);
-  GpuCounterDescriptor(const GpuCounterDescriptor&);
-  GpuCounterDescriptor& operator=(const GpuCounterDescriptor&);
-  bool operator==(const GpuCounterDescriptor&) const;
-  bool operator!=(const GpuCounterDescriptor& other) const { return !(*this == other); }
-
-  bool ParseFromArray(const void*, size_t) override;
-  std::string SerializeAsString() const override;
-  std::vector<uint8_t> SerializeAsArray() const override;
-  void Serialize(::protozero::Message*) const;
-
-  const std::vector<GpuCounterDescriptor_GpuCounterSpec>& specs() const { return specs_; }
-  std::vector<GpuCounterDescriptor_GpuCounterSpec>* mutable_specs() { return &specs_; }
-  int specs_size() const;
-  void clear_specs();
-  GpuCounterDescriptor_GpuCounterSpec* add_specs();
-
-  const std::vector<GpuCounterDescriptor_GpuCounterBlock>& blocks() const { return blocks_; }
-  std::vector<GpuCounterDescriptor_GpuCounterBlock>* mutable_blocks() { return &blocks_; }
-  int blocks_size() const;
-  void clear_blocks();
-  GpuCounterDescriptor_GpuCounterBlock* add_blocks();
-
-  bool has_min_sampling_period_ns() const { return _has_field_[3]; }
-  uint64_t min_sampling_period_ns() const { return min_sampling_period_ns_; }
-  void set_min_sampling_period_ns(uint64_t value) { min_sampling_period_ns_ = value; _has_field_.set(3); }
-
-  bool has_max_sampling_period_ns() const { return _has_field_[4]; }
-  uint64_t max_sampling_period_ns() const { return max_sampling_period_ns_; }
-  void set_max_sampling_period_ns(uint64_t value) { max_sampling_period_ns_ = value; _has_field_.set(4); }
-
-  bool has_supports_instrumented_sampling() const { return _has_field_[5]; }
-  bool supports_instrumented_sampling() const { return supports_instrumented_sampling_; }
-  void set_supports_instrumented_sampling(bool value) { supports_instrumented_sampling_ = value; _has_field_.set(5); }
-
- private:
-  std::vector<GpuCounterDescriptor_GpuCounterSpec> specs_;
-  std::vector<GpuCounterDescriptor_GpuCounterBlock> blocks_;
-  uint64_t min_sampling_period_ns_{};
-  uint64_t max_sampling_period_ns_{};
-  bool supports_instrumented_sampling_{};
-
-  // Allows to preserve unknown protobuf fields for compatibility
-  // with future versions of .proto files.
-  std::string unknown_fields_;
-
-  std::bitset<6> _has_field_{};
-};
-
-
-class PERFETTO_EXPORT GpuCounterDescriptor_GpuCounterBlock : public ::protozero::CppMessageObj {
- public:
-  enum FieldNumbers {
-    kBlockIdFieldNumber = 1,
-    kBlockCapacityFieldNumber = 2,
-    kNameFieldNumber = 3,
-    kDescriptionFieldNumber = 4,
-    kCounterIdsFieldNumber = 5,
-  };
-
-  GpuCounterDescriptor_GpuCounterBlock();
-  ~GpuCounterDescriptor_GpuCounterBlock() override;
-  GpuCounterDescriptor_GpuCounterBlock(GpuCounterDescriptor_GpuCounterBlock&&) noexcept;
-  GpuCounterDescriptor_GpuCounterBlock& operator=(GpuCounterDescriptor_GpuCounterBlock&&);
-  GpuCounterDescriptor_GpuCounterBlock(const GpuCounterDescriptor_GpuCounterBlock&);
-  GpuCounterDescriptor_GpuCounterBlock& operator=(const GpuCounterDescriptor_GpuCounterBlock&);
-  bool operator==(const GpuCounterDescriptor_GpuCounterBlock&) const;
-  bool operator!=(const GpuCounterDescriptor_GpuCounterBlock& other) const { return !(*this == other); }
-
-  bool ParseFromArray(const void*, size_t) override;
-  std::string SerializeAsString() const override;
-  std::vector<uint8_t> SerializeAsArray() const override;
-  void Serialize(::protozero::Message*) const;
-
-  bool has_block_id() const { return _has_field_[1]; }
-  uint32_t block_id() const { return block_id_; }
-  void set_block_id(uint32_t value) { block_id_ = value; _has_field_.set(1); }
-
-  bool has_block_capacity() const { return _has_field_[2]; }
-  uint32_t block_capacity() const { return block_capacity_; }
-  void set_block_capacity(uint32_t value) { block_capacity_ = value; _has_field_.set(2); }
-
-  bool has_name() const { return _has_field_[3]; }
-  const std::string& name() const { return name_; }
-  void set_name(const std::string& value) { name_ = value; _has_field_.set(3); }
-
-  bool has_description() const { return _has_field_[4]; }
-  const std::string& description() const { return description_; }
-  void set_description(const std::string& value) { description_ = value; _has_field_.set(4); }
-
-  const std::vector<uint32_t>& counter_ids() const { return counter_ids_; }
-  std::vector<uint32_t>* mutable_counter_ids() { return &counter_ids_; }
-  int counter_ids_size() const { return static_cast<int>(counter_ids_.size()); }
-  void clear_counter_ids() { counter_ids_.clear(); }
-  void add_counter_ids(uint32_t value) { counter_ids_.emplace_back(value); }
-  uint32_t* add_counter_ids() { counter_ids_.emplace_back(); return &counter_ids_.back(); }
-
- private:
-  uint32_t block_id_{};
-  uint32_t block_capacity_{};
-  std::string name_{};
-  std::string description_{};
-  std::vector<uint32_t> counter_ids_;
-
-  // Allows to preserve unknown protobuf fields for compatibility
-  // with future versions of .proto files.
-  std::string unknown_fields_;
-
-  std::bitset<6> _has_field_{};
-};
-
-
-class PERFETTO_EXPORT GpuCounterDescriptor_GpuCounterSpec : public ::protozero::CppMessageObj {
- public:
-  enum FieldNumbers {
-    kCounterIdFieldNumber = 1,
-    kNameFieldNumber = 2,
-    kDescriptionFieldNumber = 3,
-    kIntPeakValueFieldNumber = 5,
-    kDoublePeakValueFieldNumber = 6,
-    kNumeratorUnitsFieldNumber = 7,
-    kDenominatorUnitsFieldNumber = 8,
-    kSelectByDefaultFieldNumber = 9,
-    kGroupsFieldNumber = 10,
-  };
-
-  GpuCounterDescriptor_GpuCounterSpec();
-  ~GpuCounterDescriptor_GpuCounterSpec() override;
-  GpuCounterDescriptor_GpuCounterSpec(GpuCounterDescriptor_GpuCounterSpec&&) noexcept;
-  GpuCounterDescriptor_GpuCounterSpec& operator=(GpuCounterDescriptor_GpuCounterSpec&&);
-  GpuCounterDescriptor_GpuCounterSpec(const GpuCounterDescriptor_GpuCounterSpec&);
-  GpuCounterDescriptor_GpuCounterSpec& operator=(const GpuCounterDescriptor_GpuCounterSpec&);
-  bool operator==(const GpuCounterDescriptor_GpuCounterSpec&) const;
-  bool operator!=(const GpuCounterDescriptor_GpuCounterSpec& other) const { return !(*this == other); }
-
-  bool ParseFromArray(const void*, size_t) override;
-  std::string SerializeAsString() const override;
-  std::vector<uint8_t> SerializeAsArray() const override;
-  void Serialize(::protozero::Message*) const;
-
-  bool has_counter_id() const { return _has_field_[1]; }
-  uint32_t counter_id() const { return counter_id_; }
-  void set_counter_id(uint32_t value) { counter_id_ = value; _has_field_.set(1); }
-
-  bool has_name() const { return _has_field_[2]; }
-  const std::string& name() const { return name_; }
-  void set_name(const std::string& value) { name_ = value; _has_field_.set(2); }
-
-  bool has_description() const { return _has_field_[3]; }
-  const std::string& description() const { return description_; }
-  void set_description(const std::string& value) { description_ = value; _has_field_.set(3); }
-
-  bool has_int_peak_value() const { return _has_field_[5]; }
-  int64_t int_peak_value() const { return int_peak_value_; }
-  void set_int_peak_value(int64_t value) { int_peak_value_ = value; _has_field_.set(5); }
-
-  bool has_double_peak_value() const { return _has_field_[6]; }
-  double double_peak_value() const { return double_peak_value_; }
-  void set_double_peak_value(double value) { double_peak_value_ = value; _has_field_.set(6); }
-
-  const std::vector<GpuCounterDescriptor_MeasureUnit>& numerator_units() const { return numerator_units_; }
-  std::vector<GpuCounterDescriptor_MeasureUnit>* mutable_numerator_units() { return &numerator_units_; }
-  int numerator_units_size() const { return static_cast<int>(numerator_units_.size()); }
-  void clear_numerator_units() { numerator_units_.clear(); }
-  void add_numerator_units(GpuCounterDescriptor_MeasureUnit value) { numerator_units_.emplace_back(value); }
-  GpuCounterDescriptor_MeasureUnit* add_numerator_units() { numerator_units_.emplace_back(); return &numerator_units_.back(); }
-
-  const std::vector<GpuCounterDescriptor_MeasureUnit>& denominator_units() const { return denominator_units_; }
-  std::vector<GpuCounterDescriptor_MeasureUnit>* mutable_denominator_units() { return &denominator_units_; }
-  int denominator_units_size() const { return static_cast<int>(denominator_units_.size()); }
-  void clear_denominator_units() { denominator_units_.clear(); }
-  void add_denominator_units(GpuCounterDescriptor_MeasureUnit value) { denominator_units_.emplace_back(value); }
-  GpuCounterDescriptor_MeasureUnit* add_denominator_units() { denominator_units_.emplace_back(); return &denominator_units_.back(); }
-
-  bool has_select_by_default() const { return _has_field_[9]; }
-  bool select_by_default() const { return select_by_default_; }
-  void set_select_by_default(bool value) { select_by_default_ = value; _has_field_.set(9); }
-
-  const std::vector<GpuCounterDescriptor_GpuCounterGroup>& groups() const { return groups_; }
-  std::vector<GpuCounterDescriptor_GpuCounterGroup>* mutable_groups() { return &groups_; }
-  int groups_size() const { return static_cast<int>(groups_.size()); }
-  void clear_groups() { groups_.clear(); }
-  void add_groups(GpuCounterDescriptor_GpuCounterGroup value) { groups_.emplace_back(value); }
-  GpuCounterDescriptor_GpuCounterGroup* add_groups() { groups_.emplace_back(); return &groups_.back(); }
-
- private:
-  uint32_t counter_id_{};
-  std::string name_{};
-  std::string description_{};
-  int64_t int_peak_value_{};
-  double double_peak_value_{};
-  std::vector<GpuCounterDescriptor_MeasureUnit> numerator_units_;
-  std::vector<GpuCounterDescriptor_MeasureUnit> denominator_units_;
-  bool select_by_default_{};
-  std::vector<GpuCounterDescriptor_GpuCounterGroup> groups_;
-
-  // Allows to preserve unknown protobuf fields for compatibility
-  // with future versions of .proto files.
-  std::string unknown_fields_;
-
-  std::bitset<11> _has_field_{};
-};
-
-}  // namespace perfetto
-}  // namespace protos
-}  // namespace gen
-
-#endif  // PERFETTO_PROTOS_PROTOS_PERFETTO_COMMON_GPU_COUNTER_DESCRIPTOR_PROTO_CPP_H_
-// gen_amalgamated expanded: #include "perfetto/protozero/message.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/packed_repeated_fields.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/proto_decoder.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/scattered_heap_buffer.h"
-// DO NOT EDIT. Autogenerated by Perfetto cppgen_plugin
-#if defined(__GNUC__) || defined(__clang__)
-#pragma GCC diagnostic push
-#pragma GCC diagnostic ignored "-Wfloat-equal"
-#endif
-// gen_amalgamated expanded: #include "protos/perfetto/common/gpu_counter_descriptor.gen.h"
-
-namespace perfetto {
-namespace protos {
-namespace gen {
-
-GpuCounterDescriptor::GpuCounterDescriptor() = default;
-GpuCounterDescriptor::~GpuCounterDescriptor() = default;
-GpuCounterDescriptor::GpuCounterDescriptor(const GpuCounterDescriptor&) = default;
-GpuCounterDescriptor& GpuCounterDescriptor::operator=(const GpuCounterDescriptor&) = default;
-GpuCounterDescriptor::GpuCounterDescriptor(GpuCounterDescriptor&&) noexcept = default;
-GpuCounterDescriptor& GpuCounterDescriptor::operator=(GpuCounterDescriptor&&) = default;
-
-bool GpuCounterDescriptor::operator==(const GpuCounterDescriptor& other) const {
-  return unknown_fields_ == other.unknown_fields_
-   && specs_ == other.specs_
-   && blocks_ == other.blocks_
-   && min_sampling_period_ns_ == other.min_sampling_period_ns_
-   && max_sampling_period_ns_ == other.max_sampling_period_ns_
-   && supports_instrumented_sampling_ == other.supports_instrumented_sampling_;
-}
-
-int GpuCounterDescriptor::specs_size() const { return static_cast<int>(specs_.size()); }
-void GpuCounterDescriptor::clear_specs() { specs_.clear(); }
-GpuCounterDescriptor_GpuCounterSpec* GpuCounterDescriptor::add_specs() { specs_.emplace_back(); return &specs_.back(); }
-int GpuCounterDescriptor::blocks_size() const { return static_cast<int>(blocks_.size()); }
-void GpuCounterDescriptor::clear_blocks() { blocks_.clear(); }
-GpuCounterDescriptor_GpuCounterBlock* GpuCounterDescriptor::add_blocks() { blocks_.emplace_back(); return &blocks_.back(); }
-bool GpuCounterDescriptor::ParseFromArray(const void* raw, size_t size) {
-  specs_.clear();
-  blocks_.clear();
-  unknown_fields_.clear();
-  bool packed_error = false;
-
-  ::protozero::ProtoDecoder dec(raw, size);
-  for (auto field = dec.ReadField(); field.valid(); field = dec.ReadField()) {
-    if (field.id() < _has_field_.size()) {
-      _has_field_.set(field.id());
-    }
-    switch (field.id()) {
-      case 1 /* specs */:
-        specs_.emplace_back();
-        specs_.back().ParseFromArray(field.data(), field.size());
-        break;
-      case 2 /* blocks */:
-        blocks_.emplace_back();
-        blocks_.back().ParseFromArray(field.data(), field.size());
-        break;
-      case 3 /* min_sampling_period_ns */:
-        field.get(&min_sampling_period_ns_);
-        break;
-      case 4 /* max_sampling_period_ns */:
-        field.get(&max_sampling_period_ns_);
-        break;
-      case 5 /* supports_instrumented_sampling */:
-        field.get(&supports_instrumented_sampling_);
-        break;
-      default:
-        field.SerializeAndAppendTo(&unknown_fields_);
-        break;
-    }
-  }
-  return !packed_error && !dec.bytes_left();
-}
-
-std::string GpuCounterDescriptor::SerializeAsString() const {
-  ::protozero::HeapBuffered<::protozero::Message> msg;
-  Serialize(msg.get());
-  return msg.SerializeAsString();
-}
-
-std::vector<uint8_t> GpuCounterDescriptor::SerializeAsArray() const {
-  ::protozero::HeapBuffered<::protozero::Message> msg;
-  Serialize(msg.get());
-  return msg.SerializeAsArray();
-}
-
-void GpuCounterDescriptor::Serialize(::protozero::Message* msg) const {
-  // Field 1: specs
-  for (auto& it : specs_) {
-    it.Serialize(msg->BeginNestedMessage<::protozero::Message>(1));
-  }
-
-  // Field 2: blocks
-  for (auto& it : blocks_) {
-    it.Serialize(msg->BeginNestedMessage<::protozero::Message>(2));
-  }
-
-  // Field 3: min_sampling_period_ns
-  if (_has_field_[3]) {
-    msg->AppendVarInt(3, min_sampling_period_ns_);
-  }
-
-  // Field 4: max_sampling_period_ns
-  if (_has_field_[4]) {
-    msg->AppendVarInt(4, max_sampling_period_ns_);
-  }
-
-  // Field 5: supports_instrumented_sampling
-  if (_has_field_[5]) {
-    msg->AppendTinyVarInt(5, supports_instrumented_sampling_);
-  }
-
-  msg->AppendRawProtoBytes(unknown_fields_.data(), unknown_fields_.size());
-}
-
-
-GpuCounterDescriptor_GpuCounterBlock::GpuCounterDescriptor_GpuCounterBlock() = default;
-GpuCounterDescriptor_GpuCounterBlock::~GpuCounterDescriptor_GpuCounterBlock() = default;
-GpuCounterDescriptor_GpuCounterBlock::GpuCounterDescriptor_GpuCounterBlock(const GpuCounterDescriptor_GpuCounterBlock&) = default;
-GpuCounterDescriptor_GpuCounterBlock& GpuCounterDescriptor_GpuCounterBlock::operator=(const GpuCounterDescriptor_GpuCounterBlock&) = default;
-GpuCounterDescriptor_GpuCounterBlock::GpuCounterDescriptor_GpuCounterBlock(GpuCounterDescriptor_GpuCounterBlock&&) noexcept = default;
-GpuCounterDescriptor_GpuCounterBlock& GpuCounterDescriptor_GpuCounterBlock::operator=(GpuCounterDescriptor_GpuCounterBlock&&) = default;
-
-bool GpuCounterDescriptor_GpuCounterBlock::operator==(const GpuCounterDescriptor_GpuCounterBlock& other) const {
-  return unknown_fields_ == other.unknown_fields_
-   && block_id_ == other.block_id_
-   && block_capacity_ == other.block_capacity_
-   && name_ == other.name_
-   && description_ == other.description_
-   && counter_ids_ == other.counter_ids_;
-}
-
-bool GpuCounterDescriptor_GpuCounterBlock::ParseFromArray(const void* raw, size_t size) {
-  counter_ids_.clear();
-  unknown_fields_.clear();
-  bool packed_error = false;
-
-  ::protozero::ProtoDecoder dec(raw, size);
-  for (auto field = dec.ReadField(); field.valid(); field = dec.ReadField()) {
-    if (field.id() < _has_field_.size()) {
-      _has_field_.set(field.id());
-    }
-    switch (field.id()) {
-      case 1 /* block_id */:
-        field.get(&block_id_);
-        break;
-      case 2 /* block_capacity */:
-        field.get(&block_capacity_);
-        break;
-      case 3 /* name */:
-        field.get(&name_);
-        break;
-      case 4 /* description */:
-        field.get(&description_);
-        break;
-      case 5 /* counter_ids */:
-        counter_ids_.emplace_back();
-        field.get(&counter_ids_.back());
-        break;
-      default:
-        field.SerializeAndAppendTo(&unknown_fields_);
-        break;
-    }
-  }
-  return !packed_error && !dec.bytes_left();
-}
-
-std::string GpuCounterDescriptor_GpuCounterBlock::SerializeAsString() const {
-  ::protozero::HeapBuffered<::protozero::Message> msg;
-  Serialize(msg.get());
-  return msg.SerializeAsString();
-}
-
-std::vector<uint8_t> GpuCounterDescriptor_GpuCounterBlock::SerializeAsArray() const {
-  ::protozero::HeapBuffered<::protozero::Message> msg;
-  Serialize(msg.get());
-  return msg.SerializeAsArray();
-}
-
-void GpuCounterDescriptor_GpuCounterBlock::Serialize(::protozero::Message* msg) const {
-  // Field 1: block_id
-  if (_has_field_[1]) {
-    msg->AppendVarInt(1, block_id_);
-  }
-
-  // Field 2: block_capacity
-  if (_has_field_[2]) {
-    msg->AppendVarInt(2, block_capacity_);
-  }
-
-  // Field 3: name
-  if (_has_field_[3]) {
-    msg->AppendString(3, name_);
-  }
-
-  // Field 4: description
-  if (_has_field_[4]) {
-    msg->AppendString(4, description_);
-  }
-
-  // Field 5: counter_ids
-  for (auto& it : counter_ids_) {
-    msg->AppendVarInt(5, it);
-  }
-
-  msg->AppendRawProtoBytes(unknown_fields_.data(), unknown_fields_.size());
-}
-
-
-GpuCounterDescriptor_GpuCounterSpec::GpuCounterDescriptor_GpuCounterSpec() = default;
-GpuCounterDescriptor_GpuCounterSpec::~GpuCounterDescriptor_GpuCounterSpec() = default;
-GpuCounterDescriptor_GpuCounterSpec::GpuCounterDescriptor_GpuCounterSpec(const GpuCounterDescriptor_GpuCounterSpec&) = default;
-GpuCounterDescriptor_GpuCounterSpec& GpuCounterDescriptor_GpuCounterSpec::operator=(const GpuCounterDescriptor_GpuCounterSpec&) = default;
-GpuCounterDescriptor_GpuCounterSpec::GpuCounterDescriptor_GpuCounterSpec(GpuCounterDescriptor_GpuCounterSpec&&) noexcept = default;
-GpuCounterDescriptor_GpuCounterSpec& GpuCounterDescriptor_GpuCounterSpec::operator=(GpuCounterDescriptor_GpuCounterSpec&&) = default;
-
-bool GpuCounterDescriptor_GpuCounterSpec::operator==(const GpuCounterDescriptor_GpuCounterSpec& other) const {
-  return unknown_fields_ == other.unknown_fields_
-   && counter_id_ == other.counter_id_
-   && name_ == other.name_
-   && description_ == other.description_
-   && int_peak_value_ == other.int_peak_value_
-   && double_peak_value_ == other.double_peak_value_
-   && numerator_units_ == other.numerator_units_
-   && denominator_units_ == other.denominator_units_
-   && select_by_default_ == other.select_by_default_
-   && groups_ == other.groups_;
-}
-
-bool GpuCounterDescriptor_GpuCounterSpec::ParseFromArray(const void* raw, size_t size) {
-  numerator_units_.clear();
-  denominator_units_.clear();
-  groups_.clear();
-  unknown_fields_.clear();
-  bool packed_error = false;
-
-  ::protozero::ProtoDecoder dec(raw, size);
-  for (auto field = dec.ReadField(); field.valid(); field = dec.ReadField()) {
-    if (field.id() < _has_field_.size()) {
-      _has_field_.set(field.id());
-    }
-    switch (field.id()) {
-      case 1 /* counter_id */:
-        field.get(&counter_id_);
-        break;
-      case 2 /* name */:
-        field.get(&name_);
-        break;
-      case 3 /* description */:
-        field.get(&description_);
-        break;
-      case 5 /* int_peak_value */:
-        field.get(&int_peak_value_);
-        break;
-      case 6 /* double_peak_value */:
-        field.get(&double_peak_value_);
-        break;
-      case 7 /* numerator_units */:
-        numerator_units_.emplace_back();
-        field.get(&numerator_units_.back());
-        break;
-      case 8 /* denominator_units */:
-        denominator_units_.emplace_back();
-        field.get(&denominator_units_.back());
-        break;
-      case 9 /* select_by_default */:
-        field.get(&select_by_default_);
-        break;
-      case 10 /* groups */:
-        groups_.emplace_back();
-        field.get(&groups_.back());
-        break;
-      default:
-        field.SerializeAndAppendTo(&unknown_fields_);
-        break;
-    }
-  }
-  return !packed_error && !dec.bytes_left();
-}
-
-std::string GpuCounterDescriptor_GpuCounterSpec::SerializeAsString() const {
-  ::protozero::HeapBuffered<::protozero::Message> msg;
-  Serialize(msg.get());
-  return msg.SerializeAsString();
-}
-
-std::vector<uint8_t> GpuCounterDescriptor_GpuCounterSpec::SerializeAsArray() const {
-  ::protozero::HeapBuffered<::protozero::Message> msg;
-  Serialize(msg.get());
-  return msg.SerializeAsArray();
-}
-
-void GpuCounterDescriptor_GpuCounterSpec::Serialize(::protozero::Message* msg) const {
-  // Field 1: counter_id
-  if (_has_field_[1]) {
-    msg->AppendVarInt(1, counter_id_);
-  }
-
-  // Field 2: name
-  if (_has_field_[2]) {
-    msg->AppendString(2, name_);
-  }
-
-  // Field 3: description
-  if (_has_field_[3]) {
-    msg->AppendString(3, description_);
-  }
-
-  // Field 5: int_peak_value
-  if (_has_field_[5]) {
-    msg->AppendVarInt(5, int_peak_value_);
-  }
-
-  // Field 6: double_peak_value
-  if (_has_field_[6]) {
-    msg->AppendFixed(6, double_peak_value_);
-  }
-
-  // Field 7: numerator_units
-  for (auto& it : numerator_units_) {
-    msg->AppendVarInt(7, it);
-  }
-
-  // Field 8: denominator_units
-  for (auto& it : denominator_units_) {
-    msg->AppendVarInt(8, it);
-  }
-
-  // Field 9: select_by_default
-  if (_has_field_[9]) {
-    msg->AppendTinyVarInt(9, select_by_default_);
-  }
-
-  // Field 10: groups
-  for (auto& it : groups_) {
-    msg->AppendVarInt(10, it);
-  }
-
-  msg->AppendRawProtoBytes(unknown_fields_.data(), unknown_fields_.size());
-}
-
-}  // namespace perfetto
-}  // namespace protos
-}  // namespace gen
-#if defined(__GNUC__) || defined(__clang__)
-#pragma GCC diagnostic pop
-#endif
-// gen_amalgamated begin source: gen/protos/perfetto/common/interceptor_descriptor.gen.cc
-// gen_amalgamated begin header: gen/protos/perfetto/common/interceptor_descriptor.gen.h
-// DO NOT EDIT. Autogenerated by Perfetto cppgen_plugin
-#ifndef PERFETTO_PROTOS_PROTOS_PERFETTO_COMMON_INTERCEPTOR_DESCRIPTOR_PROTO_CPP_H_
-#define PERFETTO_PROTOS_PROTOS_PERFETTO_COMMON_INTERCEPTOR_DESCRIPTOR_PROTO_CPP_H_
-
-#include <stdint.h>
-#include <bitset>
-#include <vector>
-#include <string>
-#include <type_traits>
-
-// gen_amalgamated expanded: #include "perfetto/protozero/cpp_message_obj.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/copyable_ptr.h"
-// gen_amalgamated expanded: #include "perfetto/base/export.h"
-
-namespace perfetto {
-namespace protos {
-namespace gen {
-class InterceptorDescriptor;
-}  // namespace perfetto
-}  // namespace protos
-}  // namespace gen
-
-namespace protozero {
-class Message;
-}  // namespace protozero
-
-namespace perfetto {
-namespace protos {
-namespace gen {
-
-class PERFETTO_EXPORT InterceptorDescriptor : public ::protozero::CppMessageObj {
- public:
-  enum FieldNumbers {
-    kNameFieldNumber = 1,
-  };
-
-  InterceptorDescriptor();
-  ~InterceptorDescriptor() override;
-  InterceptorDescriptor(InterceptorDescriptor&&) noexcept;
-  InterceptorDescriptor& operator=(InterceptorDescriptor&&);
-  InterceptorDescriptor(const InterceptorDescriptor&);
-  InterceptorDescriptor& operator=(const InterceptorDescriptor&);
-  bool operator==(const InterceptorDescriptor&) const;
-  bool operator!=(const InterceptorDescriptor& other) const { return !(*this == other); }
-
-  bool ParseFromArray(const void*, size_t) override;
-  std::string SerializeAsString() const override;
-  std::vector<uint8_t> SerializeAsArray() const override;
-  void Serialize(::protozero::Message*) const;
-
-  bool has_name() const { return _has_field_[1]; }
-  const std::string& name() const { return name_; }
-  void set_name(const std::string& value) { name_ = value; _has_field_.set(1); }
-
- private:
-  std::string name_{};
-
-  // Allows to preserve unknown protobuf fields for compatibility
-  // with future versions of .proto files.
-  std::string unknown_fields_;
-
-  std::bitset<2> _has_field_{};
-};
-
-}  // namespace perfetto
-}  // namespace protos
-}  // namespace gen
-
-#endif  // PERFETTO_PROTOS_PROTOS_PERFETTO_COMMON_INTERCEPTOR_DESCRIPTOR_PROTO_CPP_H_
-// gen_amalgamated expanded: #include "perfetto/protozero/message.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/packed_repeated_fields.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/proto_decoder.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/scattered_heap_buffer.h"
-// DO NOT EDIT. Autogenerated by Perfetto cppgen_plugin
-#if defined(__GNUC__) || defined(__clang__)
-#pragma GCC diagnostic push
-#pragma GCC diagnostic ignored "-Wfloat-equal"
-#endif
-// gen_amalgamated expanded: #include "protos/perfetto/common/interceptor_descriptor.gen.h"
-
-namespace perfetto {
-namespace protos {
-namespace gen {
-
-InterceptorDescriptor::InterceptorDescriptor() = default;
-InterceptorDescriptor::~InterceptorDescriptor() = default;
-InterceptorDescriptor::InterceptorDescriptor(const InterceptorDescriptor&) = default;
-InterceptorDescriptor& InterceptorDescriptor::operator=(const InterceptorDescriptor&) = default;
-InterceptorDescriptor::InterceptorDescriptor(InterceptorDescriptor&&) noexcept = default;
-InterceptorDescriptor& InterceptorDescriptor::operator=(InterceptorDescriptor&&) = default;
-
-bool InterceptorDescriptor::operator==(const InterceptorDescriptor& other) const {
-  return unknown_fields_ == other.unknown_fields_
-   && name_ == other.name_;
-}
-
-bool InterceptorDescriptor::ParseFromArray(const void* raw, size_t size) {
-  unknown_fields_.clear();
-  bool packed_error = false;
-
-  ::protozero::ProtoDecoder dec(raw, size);
-  for (auto field = dec.ReadField(); field.valid(); field = dec.ReadField()) {
-    if (field.id() < _has_field_.size()) {
-      _has_field_.set(field.id());
-    }
-    switch (field.id()) {
-      case 1 /* name */:
-        field.get(&name_);
-        break;
-      default:
-        field.SerializeAndAppendTo(&unknown_fields_);
-        break;
-    }
-  }
-  return !packed_error && !dec.bytes_left();
-}
-
-std::string InterceptorDescriptor::SerializeAsString() const {
-  ::protozero::HeapBuffered<::protozero::Message> msg;
-  Serialize(msg.get());
-  return msg.SerializeAsString();
-}
-
-std::vector<uint8_t> InterceptorDescriptor::SerializeAsArray() const {
-  ::protozero::HeapBuffered<::protozero::Message> msg;
-  Serialize(msg.get());
-  return msg.SerializeAsArray();
-}
-
-void InterceptorDescriptor::Serialize(::protozero::Message* msg) const {
-  // Field 1: name
-  if (_has_field_[1]) {
-    msg->AppendString(1, name_);
-  }
-
-  msg->AppendRawProtoBytes(unknown_fields_.data(), unknown_fields_.size());
-}
-
-}  // namespace perfetto
-}  // namespace protos
-}  // namespace gen
-#if defined(__GNUC__) || defined(__clang__)
-#pragma GCC diagnostic pop
-#endif
-// gen_amalgamated begin source: gen/protos/perfetto/common/observable_events.gen.cc
-// gen_amalgamated begin header: gen/protos/perfetto/common/observable_events.gen.h
-// DO NOT EDIT. Autogenerated by Perfetto cppgen_plugin
-#ifndef PERFETTO_PROTOS_PROTOS_PERFETTO_COMMON_OBSERVABLE_EVENTS_PROTO_CPP_H_
-#define PERFETTO_PROTOS_PROTOS_PERFETTO_COMMON_OBSERVABLE_EVENTS_PROTO_CPP_H_
-
-#include <stdint.h>
-#include <bitset>
-#include <vector>
-#include <string>
-#include <type_traits>
-
-// gen_amalgamated expanded: #include "perfetto/protozero/cpp_message_obj.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/copyable_ptr.h"
-// gen_amalgamated expanded: #include "perfetto/base/export.h"
-
-namespace perfetto {
-namespace protos {
-namespace gen {
-class ObservableEvents;
-class ObservableEvents_DataSourceInstanceStateChange;
-enum ObservableEvents_Type : int;
-enum ObservableEvents_DataSourceInstanceState : int;
-}  // namespace perfetto
-}  // namespace protos
-}  // namespace gen
-
-namespace protozero {
-class Message;
-}  // namespace protozero
-
-namespace perfetto {
-namespace protos {
-namespace gen {
-enum ObservableEvents_Type : int {
-  ObservableEvents_Type_TYPE_UNSPECIFIED = 0,
-  ObservableEvents_Type_TYPE_DATA_SOURCES_INSTANCES = 1,
-  ObservableEvents_Type_TYPE_ALL_DATA_SOURCES_STARTED = 2,
-};
-enum ObservableEvents_DataSourceInstanceState : int {
-  ObservableEvents_DataSourceInstanceState_DATA_SOURCE_INSTANCE_STATE_STOPPED = 1,
-  ObservableEvents_DataSourceInstanceState_DATA_SOURCE_INSTANCE_STATE_STARTED = 2,
-};
-
-class PERFETTO_EXPORT ObservableEvents : public ::protozero::CppMessageObj {
- public:
-  using DataSourceInstanceStateChange = ObservableEvents_DataSourceInstanceStateChange;
-  using Type = ObservableEvents_Type;
-  static constexpr auto TYPE_UNSPECIFIED = ObservableEvents_Type_TYPE_UNSPECIFIED;
-  static constexpr auto TYPE_DATA_SOURCES_INSTANCES = ObservableEvents_Type_TYPE_DATA_SOURCES_INSTANCES;
-  static constexpr auto TYPE_ALL_DATA_SOURCES_STARTED = ObservableEvents_Type_TYPE_ALL_DATA_SOURCES_STARTED;
-  static constexpr auto Type_MIN = ObservableEvents_Type_TYPE_UNSPECIFIED;
-  static constexpr auto Type_MAX = ObservableEvents_Type_TYPE_ALL_DATA_SOURCES_STARTED;
-  using DataSourceInstanceState = ObservableEvents_DataSourceInstanceState;
-  static constexpr auto DATA_SOURCE_INSTANCE_STATE_STOPPED = ObservableEvents_DataSourceInstanceState_DATA_SOURCE_INSTANCE_STATE_STOPPED;
-  static constexpr auto DATA_SOURCE_INSTANCE_STATE_STARTED = ObservableEvents_DataSourceInstanceState_DATA_SOURCE_INSTANCE_STATE_STARTED;
-  static constexpr auto DataSourceInstanceState_MIN = ObservableEvents_DataSourceInstanceState_DATA_SOURCE_INSTANCE_STATE_STOPPED;
-  static constexpr auto DataSourceInstanceState_MAX = ObservableEvents_DataSourceInstanceState_DATA_SOURCE_INSTANCE_STATE_STARTED;
-  enum FieldNumbers {
-    kInstanceStateChangesFieldNumber = 1,
-    kAllDataSourcesStartedFieldNumber = 2,
-  };
-
-  ObservableEvents();
-  ~ObservableEvents() override;
-  ObservableEvents(ObservableEvents&&) noexcept;
-  ObservableEvents& operator=(ObservableEvents&&);
-  ObservableEvents(const ObservableEvents&);
-  ObservableEvents& operator=(const ObservableEvents&);
-  bool operator==(const ObservableEvents&) const;
-  bool operator!=(const ObservableEvents& other) const { return !(*this == other); }
-
-  bool ParseFromArray(const void*, size_t) override;
-  std::string SerializeAsString() const override;
-  std::vector<uint8_t> SerializeAsArray() const override;
-  void Serialize(::protozero::Message*) const;
-
-  const std::vector<ObservableEvents_DataSourceInstanceStateChange>& instance_state_changes() const { return instance_state_changes_; }
-  std::vector<ObservableEvents_DataSourceInstanceStateChange>* mutable_instance_state_changes() { return &instance_state_changes_; }
-  int instance_state_changes_size() const;
-  void clear_instance_state_changes();
-  ObservableEvents_DataSourceInstanceStateChange* add_instance_state_changes();
-
-  bool has_all_data_sources_started() const { return _has_field_[2]; }
-  bool all_data_sources_started() const { return all_data_sources_started_; }
-  void set_all_data_sources_started(bool value) { all_data_sources_started_ = value; _has_field_.set(2); }
-
- private:
-  std::vector<ObservableEvents_DataSourceInstanceStateChange> instance_state_changes_;
-  bool all_data_sources_started_{};
-
-  // Allows to preserve unknown protobuf fields for compatibility
-  // with future versions of .proto files.
-  std::string unknown_fields_;
-
-  std::bitset<3> _has_field_{};
-};
-
-
-class PERFETTO_EXPORT ObservableEvents_DataSourceInstanceStateChange : public ::protozero::CppMessageObj {
- public:
-  enum FieldNumbers {
-    kProducerNameFieldNumber = 1,
-    kDataSourceNameFieldNumber = 2,
-    kStateFieldNumber = 3,
-  };
-
-  ObservableEvents_DataSourceInstanceStateChange();
-  ~ObservableEvents_DataSourceInstanceStateChange() override;
-  ObservableEvents_DataSourceInstanceStateChange(ObservableEvents_DataSourceInstanceStateChange&&) noexcept;
-  ObservableEvents_DataSourceInstanceStateChange& operator=(ObservableEvents_DataSourceInstanceStateChange&&);
-  ObservableEvents_DataSourceInstanceStateChange(const ObservableEvents_DataSourceInstanceStateChange&);
-  ObservableEvents_DataSourceInstanceStateChange& operator=(const ObservableEvents_DataSourceInstanceStateChange&);
-  bool operator==(const ObservableEvents_DataSourceInstanceStateChange&) const;
-  bool operator!=(const ObservableEvents_DataSourceInstanceStateChange& other) const { return !(*this == other); }
-
-  bool ParseFromArray(const void*, size_t) override;
-  std::string SerializeAsString() const override;
-  std::vector<uint8_t> SerializeAsArray() const override;
-  void Serialize(::protozero::Message*) const;
-
-  bool has_producer_name() const { return _has_field_[1]; }
-  const std::string& producer_name() const { return producer_name_; }
-  void set_producer_name(const std::string& value) { producer_name_ = value; _has_field_.set(1); }
-
-  bool has_data_source_name() const { return _has_field_[2]; }
-  const std::string& data_source_name() const { return data_source_name_; }
-  void set_data_source_name(const std::string& value) { data_source_name_ = value; _has_field_.set(2); }
-
-  bool has_state() const { return _has_field_[3]; }
-  ObservableEvents_DataSourceInstanceState state() const { return state_; }
-  void set_state(ObservableEvents_DataSourceInstanceState value) { state_ = value; _has_field_.set(3); }
-
- private:
-  std::string producer_name_{};
-  std::string data_source_name_{};
-  ObservableEvents_DataSourceInstanceState state_{};
-
-  // Allows to preserve unknown protobuf fields for compatibility
-  // with future versions of .proto files.
-  std::string unknown_fields_;
-
-  std::bitset<4> _has_field_{};
-};
-
-}  // namespace perfetto
-}  // namespace protos
-}  // namespace gen
-
-#endif  // PERFETTO_PROTOS_PROTOS_PERFETTO_COMMON_OBSERVABLE_EVENTS_PROTO_CPP_H_
-// gen_amalgamated expanded: #include "perfetto/protozero/message.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/packed_repeated_fields.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/proto_decoder.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/scattered_heap_buffer.h"
-// DO NOT EDIT. Autogenerated by Perfetto cppgen_plugin
-#if defined(__GNUC__) || defined(__clang__)
-#pragma GCC diagnostic push
-#pragma GCC diagnostic ignored "-Wfloat-equal"
-#endif
-// gen_amalgamated expanded: #include "protos/perfetto/common/observable_events.gen.h"
-
-namespace perfetto {
-namespace protos {
-namespace gen {
-
-ObservableEvents::ObservableEvents() = default;
-ObservableEvents::~ObservableEvents() = default;
-ObservableEvents::ObservableEvents(const ObservableEvents&) = default;
-ObservableEvents& ObservableEvents::operator=(const ObservableEvents&) = default;
-ObservableEvents::ObservableEvents(ObservableEvents&&) noexcept = default;
-ObservableEvents& ObservableEvents::operator=(ObservableEvents&&) = default;
-
-bool ObservableEvents::operator==(const ObservableEvents& other) const {
-  return unknown_fields_ == other.unknown_fields_
-   && instance_state_changes_ == other.instance_state_changes_
-   && all_data_sources_started_ == other.all_data_sources_started_;
-}
-
-int ObservableEvents::instance_state_changes_size() const { return static_cast<int>(instance_state_changes_.size()); }
-void ObservableEvents::clear_instance_state_changes() { instance_state_changes_.clear(); }
-ObservableEvents_DataSourceInstanceStateChange* ObservableEvents::add_instance_state_changes() { instance_state_changes_.emplace_back(); return &instance_state_changes_.back(); }
-bool ObservableEvents::ParseFromArray(const void* raw, size_t size) {
-  instance_state_changes_.clear();
-  unknown_fields_.clear();
-  bool packed_error = false;
-
-  ::protozero::ProtoDecoder dec(raw, size);
-  for (auto field = dec.ReadField(); field.valid(); field = dec.ReadField()) {
-    if (field.id() < _has_field_.size()) {
-      _has_field_.set(field.id());
-    }
-    switch (field.id()) {
-      case 1 /* instance_state_changes */:
-        instance_state_changes_.emplace_back();
-        instance_state_changes_.back().ParseFromArray(field.data(), field.size());
-        break;
-      case 2 /* all_data_sources_started */:
-        field.get(&all_data_sources_started_);
-        break;
-      default:
-        field.SerializeAndAppendTo(&unknown_fields_);
-        break;
-    }
-  }
-  return !packed_error && !dec.bytes_left();
-}
-
-std::string ObservableEvents::SerializeAsString() const {
-  ::protozero::HeapBuffered<::protozero::Message> msg;
-  Serialize(msg.get());
-  return msg.SerializeAsString();
-}
-
-std::vector<uint8_t> ObservableEvents::SerializeAsArray() const {
-  ::protozero::HeapBuffered<::protozero::Message> msg;
-  Serialize(msg.get());
-  return msg.SerializeAsArray();
-}
-
-void ObservableEvents::Serialize(::protozero::Message* msg) const {
-  // Field 1: instance_state_changes
-  for (auto& it : instance_state_changes_) {
-    it.Serialize(msg->BeginNestedMessage<::protozero::Message>(1));
-  }
-
-  // Field 2: all_data_sources_started
-  if (_has_field_[2]) {
-    msg->AppendTinyVarInt(2, all_data_sources_started_);
-  }
-
-  msg->AppendRawProtoBytes(unknown_fields_.data(), unknown_fields_.size());
-}
-
-
-ObservableEvents_DataSourceInstanceStateChange::ObservableEvents_DataSourceInstanceStateChange() = default;
-ObservableEvents_DataSourceInstanceStateChange::~ObservableEvents_DataSourceInstanceStateChange() = default;
-ObservableEvents_DataSourceInstanceStateChange::ObservableEvents_DataSourceInstanceStateChange(const ObservableEvents_DataSourceInstanceStateChange&) = default;
-ObservableEvents_DataSourceInstanceStateChange& ObservableEvents_DataSourceInstanceStateChange::operator=(const ObservableEvents_DataSourceInstanceStateChange&) = default;
-ObservableEvents_DataSourceInstanceStateChange::ObservableEvents_DataSourceInstanceStateChange(ObservableEvents_DataSourceInstanceStateChange&&) noexcept = default;
-ObservableEvents_DataSourceInstanceStateChange& ObservableEvents_DataSourceInstanceStateChange::operator=(ObservableEvents_DataSourceInstanceStateChange&&) = default;
-
-bool ObservableEvents_DataSourceInstanceStateChange::operator==(const ObservableEvents_DataSourceInstanceStateChange& other) const {
-  return unknown_fields_ == other.unknown_fields_
-   && producer_name_ == other.producer_name_
-   && data_source_name_ == other.data_source_name_
-   && state_ == other.state_;
-}
-
-bool ObservableEvents_DataSourceInstanceStateChange::ParseFromArray(const void* raw, size_t size) {
-  unknown_fields_.clear();
-  bool packed_error = false;
-
-  ::protozero::ProtoDecoder dec(raw, size);
-  for (auto field = dec.ReadField(); field.valid(); field = dec.ReadField()) {
-    if (field.id() < _has_field_.size()) {
-      _has_field_.set(field.id());
-    }
-    switch (field.id()) {
-      case 1 /* producer_name */:
-        field.get(&producer_name_);
-        break;
-      case 2 /* data_source_name */:
-        field.get(&data_source_name_);
-        break;
-      case 3 /* state */:
-        field.get(&state_);
-        break;
-      default:
-        field.SerializeAndAppendTo(&unknown_fields_);
-        break;
-    }
-  }
-  return !packed_error && !dec.bytes_left();
-}
-
-std::string ObservableEvents_DataSourceInstanceStateChange::SerializeAsString() const {
-  ::protozero::HeapBuffered<::protozero::Message> msg;
-  Serialize(msg.get());
-  return msg.SerializeAsString();
-}
-
-std::vector<uint8_t> ObservableEvents_DataSourceInstanceStateChange::SerializeAsArray() const {
-  ::protozero::HeapBuffered<::protozero::Message> msg;
-  Serialize(msg.get());
-  return msg.SerializeAsArray();
-}
-
-void ObservableEvents_DataSourceInstanceStateChange::Serialize(::protozero::Message* msg) const {
-  // Field 1: producer_name
-  if (_has_field_[1]) {
-    msg->AppendString(1, producer_name_);
-  }
-
-  // Field 2: data_source_name
-  if (_has_field_[2]) {
-    msg->AppendString(2, data_source_name_);
-  }
-
-  // Field 3: state
-  if (_has_field_[3]) {
-    msg->AppendVarInt(3, state_);
-  }
-
-  msg->AppendRawProtoBytes(unknown_fields_.data(), unknown_fields_.size());
-}
-
-}  // namespace perfetto
-}  // namespace protos
-}  // namespace gen
-#if defined(__GNUC__) || defined(__clang__)
-#pragma GCC diagnostic pop
-#endif
-// gen_amalgamated begin source: gen/protos/perfetto/common/perf_events.gen.cc
-// gen_amalgamated begin header: gen/protos/perfetto/common/perf_events.gen.h
-// DO NOT EDIT. Autogenerated by Perfetto cppgen_plugin
-#ifndef PERFETTO_PROTOS_PROTOS_PERFETTO_COMMON_PERF_EVENTS_PROTO_CPP_H_
-#define PERFETTO_PROTOS_PROTOS_PERFETTO_COMMON_PERF_EVENTS_PROTO_CPP_H_
-
-#include <stdint.h>
-#include <bitset>
-#include <vector>
-#include <string>
-#include <type_traits>
-
-// gen_amalgamated expanded: #include "perfetto/protozero/cpp_message_obj.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/copyable_ptr.h"
-// gen_amalgamated expanded: #include "perfetto/base/export.h"
-
-namespace perfetto {
-namespace protos {
-namespace gen {
-class PerfEvents;
-class PerfEvents_Tracepoint;
-class PerfEvents_Timebase;
-enum PerfEvents_Counter : int;
-}  // namespace perfetto
-}  // namespace protos
-}  // namespace gen
-
-namespace protozero {
-class Message;
-}  // namespace protozero
-
-namespace perfetto {
-namespace protos {
-namespace gen {
-enum PerfEvents_Counter : int {
-  PerfEvents_Counter_UNKNOWN_COUNTER = 0,
-  PerfEvents_Counter_SW_CPU_CLOCK = 1,
-  PerfEvents_Counter_SW_PAGE_FAULTS = 2,
-  PerfEvents_Counter_HW_CPU_CYCLES = 10,
-  PerfEvents_Counter_HW_INSTRUCTIONS = 11,
-};
-
-class PERFETTO_EXPORT PerfEvents : public ::protozero::CppMessageObj {
- public:
-  using Timebase = PerfEvents_Timebase;
-  using Tracepoint = PerfEvents_Tracepoint;
-  using Counter = PerfEvents_Counter;
-  static constexpr auto UNKNOWN_COUNTER = PerfEvents_Counter_UNKNOWN_COUNTER;
-  static constexpr auto SW_CPU_CLOCK = PerfEvents_Counter_SW_CPU_CLOCK;
-  static constexpr auto SW_PAGE_FAULTS = PerfEvents_Counter_SW_PAGE_FAULTS;
-  static constexpr auto HW_CPU_CYCLES = PerfEvents_Counter_HW_CPU_CYCLES;
-  static constexpr auto HW_INSTRUCTIONS = PerfEvents_Counter_HW_INSTRUCTIONS;
-  static constexpr auto Counter_MIN = PerfEvents_Counter_UNKNOWN_COUNTER;
-  static constexpr auto Counter_MAX = PerfEvents_Counter_HW_INSTRUCTIONS;
-  enum FieldNumbers {
-  };
-
-  PerfEvents();
-  ~PerfEvents() override;
-  PerfEvents(PerfEvents&&) noexcept;
-  PerfEvents& operator=(PerfEvents&&);
-  PerfEvents(const PerfEvents&);
-  PerfEvents& operator=(const PerfEvents&);
-  bool operator==(const PerfEvents&) const;
-  bool operator!=(const PerfEvents& other) const { return !(*this == other); }
-
-  bool ParseFromArray(const void*, size_t) override;
-  std::string SerializeAsString() const override;
-  std::vector<uint8_t> SerializeAsArray() const override;
-  void Serialize(::protozero::Message*) const;
-
- private:
-
-  // Allows to preserve unknown protobuf fields for compatibility
-  // with future versions of .proto files.
-  std::string unknown_fields_;
-
-  std::bitset<2> _has_field_{};
-};
-
-
-class PERFETTO_EXPORT PerfEvents_Tracepoint : public ::protozero::CppMessageObj {
- public:
-  enum FieldNumbers {
-    kNameFieldNumber = 1,
-    kFilterFieldNumber = 2,
-  };
-
-  PerfEvents_Tracepoint();
-  ~PerfEvents_Tracepoint() override;
-  PerfEvents_Tracepoint(PerfEvents_Tracepoint&&) noexcept;
-  PerfEvents_Tracepoint& operator=(PerfEvents_Tracepoint&&);
-  PerfEvents_Tracepoint(const PerfEvents_Tracepoint&);
-  PerfEvents_Tracepoint& operator=(const PerfEvents_Tracepoint&);
-  bool operator==(const PerfEvents_Tracepoint&) const;
-  bool operator!=(const PerfEvents_Tracepoint& other) const { return !(*this == other); }
-
-  bool ParseFromArray(const void*, size_t) override;
-  std::string SerializeAsString() const override;
-  std::vector<uint8_t> SerializeAsArray() const override;
-  void Serialize(::protozero::Message*) const;
-
-  bool has_name() const { return _has_field_[1]; }
-  const std::string& name() const { return name_; }
-  void set_name(const std::string& value) { name_ = value; _has_field_.set(1); }
-
-  bool has_filter() const { return _has_field_[2]; }
-  const std::string& filter() const { return filter_; }
-  void set_filter(const std::string& value) { filter_ = value; _has_field_.set(2); }
-
- private:
-  std::string name_{};
-  std::string filter_{};
-
-  // Allows to preserve unknown protobuf fields for compatibility
-  // with future versions of .proto files.
-  std::string unknown_fields_;
-
-  std::bitset<3> _has_field_{};
-};
-
-
-class PERFETTO_EXPORT PerfEvents_Timebase : public ::protozero::CppMessageObj {
- public:
-  enum FieldNumbers {
-    kFrequencyFieldNumber = 2,
-    kPeriodFieldNumber = 1,
-    kCounterFieldNumber = 4,
-    kTracepointFieldNumber = 3,
-  };
-
-  PerfEvents_Timebase();
-  ~PerfEvents_Timebase() override;
-  PerfEvents_Timebase(PerfEvents_Timebase&&) noexcept;
-  PerfEvents_Timebase& operator=(PerfEvents_Timebase&&);
-  PerfEvents_Timebase(const PerfEvents_Timebase&);
-  PerfEvents_Timebase& operator=(const PerfEvents_Timebase&);
-  bool operator==(const PerfEvents_Timebase&) const;
-  bool operator!=(const PerfEvents_Timebase& other) const { return !(*this == other); }
-
-  bool ParseFromArray(const void*, size_t) override;
-  std::string SerializeAsString() const override;
-  std::vector<uint8_t> SerializeAsArray() const override;
-  void Serialize(::protozero::Message*) const;
-
-  bool has_frequency() const { return _has_field_[2]; }
-  uint64_t frequency() const { return frequency_; }
-  void set_frequency(uint64_t value) { frequency_ = value; _has_field_.set(2); }
-
-  bool has_period() const { return _has_field_[1]; }
-  uint64_t period() const { return period_; }
-  void set_period(uint64_t value) { period_ = value; _has_field_.set(1); }
-
-  bool has_counter() const { return _has_field_[4]; }
-  PerfEvents_Counter counter() const { return counter_; }
-  void set_counter(PerfEvents_Counter value) { counter_ = value; _has_field_.set(4); }
-
-  bool has_tracepoint() const { return _has_field_[3]; }
-  const PerfEvents_Tracepoint& tracepoint() const { return *tracepoint_; }
-  PerfEvents_Tracepoint* mutable_tracepoint() { _has_field_.set(3); return tracepoint_.get(); }
-
- private:
-  uint64_t frequency_{};
-  uint64_t period_{};
-  PerfEvents_Counter counter_{};
-  ::protozero::CopyablePtr<PerfEvents_Tracepoint> tracepoint_;
-
-  // Allows to preserve unknown protobuf fields for compatibility
-  // with future versions of .proto files.
-  std::string unknown_fields_;
-
-  std::bitset<5> _has_field_{};
-};
-
-}  // namespace perfetto
-}  // namespace protos
-}  // namespace gen
-
-#endif  // PERFETTO_PROTOS_PROTOS_PERFETTO_COMMON_PERF_EVENTS_PROTO_CPP_H_
-// gen_amalgamated expanded: #include "perfetto/protozero/message.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/packed_repeated_fields.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/proto_decoder.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/scattered_heap_buffer.h"
-// DO NOT EDIT. Autogenerated by Perfetto cppgen_plugin
-#if defined(__GNUC__) || defined(__clang__)
-#pragma GCC diagnostic push
-#pragma GCC diagnostic ignored "-Wfloat-equal"
-#endif
-// gen_amalgamated expanded: #include "protos/perfetto/common/perf_events.gen.h"
-
-namespace perfetto {
-namespace protos {
-namespace gen {
-
-PerfEvents::PerfEvents() = default;
-PerfEvents::~PerfEvents() = default;
-PerfEvents::PerfEvents(const PerfEvents&) = default;
-PerfEvents& PerfEvents::operator=(const PerfEvents&) = default;
-PerfEvents::PerfEvents(PerfEvents&&) noexcept = default;
-PerfEvents& PerfEvents::operator=(PerfEvents&&) = default;
-
-bool PerfEvents::operator==(const PerfEvents& other) const {
-  return unknown_fields_ == other.unknown_fields_;
-}
-
-bool PerfEvents::ParseFromArray(const void* raw, size_t size) {
-  unknown_fields_.clear();
-  bool packed_error = false;
-
-  ::protozero::ProtoDecoder dec(raw, size);
-  for (auto field = dec.ReadField(); field.valid(); field = dec.ReadField()) {
-    if (field.id() < _has_field_.size()) {
-      _has_field_.set(field.id());
-    }
-    switch (field.id()) {
-      default:
-        field.SerializeAndAppendTo(&unknown_fields_);
-        break;
-    }
-  }
-  return !packed_error && !dec.bytes_left();
-}
-
-std::string PerfEvents::SerializeAsString() const {
-  ::protozero::HeapBuffered<::protozero::Message> msg;
-  Serialize(msg.get());
-  return msg.SerializeAsString();
-}
-
-std::vector<uint8_t> PerfEvents::SerializeAsArray() const {
-  ::protozero::HeapBuffered<::protozero::Message> msg;
-  Serialize(msg.get());
-  return msg.SerializeAsArray();
-}
-
-void PerfEvents::Serialize(::protozero::Message* msg) const {
-  msg->AppendRawProtoBytes(unknown_fields_.data(), unknown_fields_.size());
-}
-
-
-PerfEvents_Tracepoint::PerfEvents_Tracepoint() = default;
-PerfEvents_Tracepoint::~PerfEvents_Tracepoint() = default;
-PerfEvents_Tracepoint::PerfEvents_Tracepoint(const PerfEvents_Tracepoint&) = default;
-PerfEvents_Tracepoint& PerfEvents_Tracepoint::operator=(const PerfEvents_Tracepoint&) = default;
-PerfEvents_Tracepoint::PerfEvents_Tracepoint(PerfEvents_Tracepoint&&) noexcept = default;
-PerfEvents_Tracepoint& PerfEvents_Tracepoint::operator=(PerfEvents_Tracepoint&&) = default;
-
-bool PerfEvents_Tracepoint::operator==(const PerfEvents_Tracepoint& other) const {
-  return unknown_fields_ == other.unknown_fields_
-   && name_ == other.name_
-   && filter_ == other.filter_;
-}
-
-bool PerfEvents_Tracepoint::ParseFromArray(const void* raw, size_t size) {
-  unknown_fields_.clear();
-  bool packed_error = false;
-
-  ::protozero::ProtoDecoder dec(raw, size);
-  for (auto field = dec.ReadField(); field.valid(); field = dec.ReadField()) {
-    if (field.id() < _has_field_.size()) {
-      _has_field_.set(field.id());
-    }
-    switch (field.id()) {
-      case 1 /* name */:
-        field.get(&name_);
-        break;
-      case 2 /* filter */:
-        field.get(&filter_);
-        break;
-      default:
-        field.SerializeAndAppendTo(&unknown_fields_);
-        break;
-    }
-  }
-  return !packed_error && !dec.bytes_left();
-}
-
-std::string PerfEvents_Tracepoint::SerializeAsString() const {
-  ::protozero::HeapBuffered<::protozero::Message> msg;
-  Serialize(msg.get());
-  return msg.SerializeAsString();
-}
-
-std::vector<uint8_t> PerfEvents_Tracepoint::SerializeAsArray() const {
-  ::protozero::HeapBuffered<::protozero::Message> msg;
-  Serialize(msg.get());
-  return msg.SerializeAsArray();
-}
-
-void PerfEvents_Tracepoint::Serialize(::protozero::Message* msg) const {
-  // Field 1: name
-  if (_has_field_[1]) {
-    msg->AppendString(1, name_);
-  }
-
-  // Field 2: filter
-  if (_has_field_[2]) {
-    msg->AppendString(2, filter_);
-  }
-
-  msg->AppendRawProtoBytes(unknown_fields_.data(), unknown_fields_.size());
-}
-
-
-PerfEvents_Timebase::PerfEvents_Timebase() = default;
-PerfEvents_Timebase::~PerfEvents_Timebase() = default;
-PerfEvents_Timebase::PerfEvents_Timebase(const PerfEvents_Timebase&) = default;
-PerfEvents_Timebase& PerfEvents_Timebase::operator=(const PerfEvents_Timebase&) = default;
-PerfEvents_Timebase::PerfEvents_Timebase(PerfEvents_Timebase&&) noexcept = default;
-PerfEvents_Timebase& PerfEvents_Timebase::operator=(PerfEvents_Timebase&&) = default;
-
-bool PerfEvents_Timebase::operator==(const PerfEvents_Timebase& other) const {
-  return unknown_fields_ == other.unknown_fields_
-   && frequency_ == other.frequency_
-   && period_ == other.period_
-   && counter_ == other.counter_
-   && tracepoint_ == other.tracepoint_;
-}
-
-bool PerfEvents_Timebase::ParseFromArray(const void* raw, size_t size) {
-  unknown_fields_.clear();
-  bool packed_error = false;
-
-  ::protozero::ProtoDecoder dec(raw, size);
-  for (auto field = dec.ReadField(); field.valid(); field = dec.ReadField()) {
-    if (field.id() < _has_field_.size()) {
-      _has_field_.set(field.id());
-    }
-    switch (field.id()) {
-      case 2 /* frequency */:
-        field.get(&frequency_);
-        break;
-      case 1 /* period */:
-        field.get(&period_);
-        break;
-      case 4 /* counter */:
-        field.get(&counter_);
-        break;
-      case 3 /* tracepoint */:
-        (*tracepoint_).ParseFromArray(field.data(), field.size());
-        break;
-      default:
-        field.SerializeAndAppendTo(&unknown_fields_);
-        break;
-    }
-  }
-  return !packed_error && !dec.bytes_left();
-}
-
-std::string PerfEvents_Timebase::SerializeAsString() const {
-  ::protozero::HeapBuffered<::protozero::Message> msg;
-  Serialize(msg.get());
-  return msg.SerializeAsString();
-}
-
-std::vector<uint8_t> PerfEvents_Timebase::SerializeAsArray() const {
-  ::protozero::HeapBuffered<::protozero::Message> msg;
-  Serialize(msg.get());
-  return msg.SerializeAsArray();
-}
-
-void PerfEvents_Timebase::Serialize(::protozero::Message* msg) const {
-  // Field 2: frequency
-  if (_has_field_[2]) {
-    msg->AppendVarInt(2, frequency_);
-  }
-
-  // Field 1: period
-  if (_has_field_[1]) {
-    msg->AppendVarInt(1, period_);
-  }
-
-  // Field 4: counter
-  if (_has_field_[4]) {
-    msg->AppendVarInt(4, counter_);
-  }
-
-  // Field 3: tracepoint
-  if (_has_field_[3]) {
-    (*tracepoint_).Serialize(msg->BeginNestedMessage<::protozero::Message>(3));
-  }
-
-  msg->AppendRawProtoBytes(unknown_fields_.data(), unknown_fields_.size());
-}
-
-}  // namespace perfetto
-}  // namespace protos
-}  // namespace gen
-#if defined(__GNUC__) || defined(__clang__)
-#pragma GCC diagnostic pop
-#endif
-// gen_amalgamated begin source: gen/protos/perfetto/common/sys_stats_counters.gen.cc
-// gen_amalgamated begin header: gen/protos/perfetto/common/sys_stats_counters.gen.h
-// DO NOT EDIT. Autogenerated by Perfetto cppgen_plugin
-#ifndef PERFETTO_PROTOS_PROTOS_PERFETTO_COMMON_SYS_STATS_COUNTERS_PROTO_CPP_H_
-#define PERFETTO_PROTOS_PROTOS_PERFETTO_COMMON_SYS_STATS_COUNTERS_PROTO_CPP_H_
-
-#include <stdint.h>
-#include <bitset>
-#include <vector>
-#include <string>
-#include <type_traits>
-
-// gen_amalgamated expanded: #include "perfetto/protozero/cpp_message_obj.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/copyable_ptr.h"
-// gen_amalgamated expanded: #include "perfetto/base/export.h"
-
-namespace perfetto {
-namespace protos {
-namespace gen {
-enum MeminfoCounters : int;
-enum VmstatCounters : int;
-}  // namespace perfetto
-}  // namespace protos
-}  // namespace gen
-
-namespace protozero {
-class Message;
-}  // namespace protozero
-
-namespace perfetto {
-namespace protos {
-namespace gen {
-enum MeminfoCounters : int {
-  MEMINFO_UNSPECIFIED = 0,
-  MEMINFO_MEM_TOTAL = 1,
-  MEMINFO_MEM_FREE = 2,
-  MEMINFO_MEM_AVAILABLE = 3,
-  MEMINFO_BUFFERS = 4,
-  MEMINFO_CACHED = 5,
-  MEMINFO_SWAP_CACHED = 6,
-  MEMINFO_ACTIVE = 7,
-  MEMINFO_INACTIVE = 8,
-  MEMINFO_ACTIVE_ANON = 9,
-  MEMINFO_INACTIVE_ANON = 10,
-  MEMINFO_ACTIVE_FILE = 11,
-  MEMINFO_INACTIVE_FILE = 12,
-  MEMINFO_UNEVICTABLE = 13,
-  MEMINFO_MLOCKED = 14,
-  MEMINFO_SWAP_TOTAL = 15,
-  MEMINFO_SWAP_FREE = 16,
-  MEMINFO_DIRTY = 17,
-  MEMINFO_WRITEBACK = 18,
-  MEMINFO_ANON_PAGES = 19,
-  MEMINFO_MAPPED = 20,
-  MEMINFO_SHMEM = 21,
-  MEMINFO_SLAB = 22,
-  MEMINFO_SLAB_RECLAIMABLE = 23,
-  MEMINFO_SLAB_UNRECLAIMABLE = 24,
-  MEMINFO_KERNEL_STACK = 25,
-  MEMINFO_PAGE_TABLES = 26,
-  MEMINFO_COMMIT_LIMIT = 27,
-  MEMINFO_COMMITED_AS = 28,
-  MEMINFO_VMALLOC_TOTAL = 29,
-  MEMINFO_VMALLOC_USED = 30,
-  MEMINFO_VMALLOC_CHUNK = 31,
-  MEMINFO_CMA_TOTAL = 32,
-  MEMINFO_CMA_FREE = 33,
-};
-enum VmstatCounters : int {
-  VMSTAT_UNSPECIFIED = 0,
-  VMSTAT_NR_FREE_PAGES = 1,
-  VMSTAT_NR_ALLOC_BATCH = 2,
-  VMSTAT_NR_INACTIVE_ANON = 3,
-  VMSTAT_NR_ACTIVE_ANON = 4,
-  VMSTAT_NR_INACTIVE_FILE = 5,
-  VMSTAT_NR_ACTIVE_FILE = 6,
-  VMSTAT_NR_UNEVICTABLE = 7,
-  VMSTAT_NR_MLOCK = 8,
-  VMSTAT_NR_ANON_PAGES = 9,
-  VMSTAT_NR_MAPPED = 10,
-  VMSTAT_NR_FILE_PAGES = 11,
-  VMSTAT_NR_DIRTY = 12,
-  VMSTAT_NR_WRITEBACK = 13,
-  VMSTAT_NR_SLAB_RECLAIMABLE = 14,
-  VMSTAT_NR_SLAB_UNRECLAIMABLE = 15,
-  VMSTAT_NR_PAGE_TABLE_PAGES = 16,
-  VMSTAT_NR_KERNEL_STACK = 17,
-  VMSTAT_NR_OVERHEAD = 18,
-  VMSTAT_NR_UNSTABLE = 19,
-  VMSTAT_NR_BOUNCE = 20,
-  VMSTAT_NR_VMSCAN_WRITE = 21,
-  VMSTAT_NR_VMSCAN_IMMEDIATE_RECLAIM = 22,
-  VMSTAT_NR_WRITEBACK_TEMP = 23,
-  VMSTAT_NR_ISOLATED_ANON = 24,
-  VMSTAT_NR_ISOLATED_FILE = 25,
-  VMSTAT_NR_SHMEM = 26,
-  VMSTAT_NR_DIRTIED = 27,
-  VMSTAT_NR_WRITTEN = 28,
-  VMSTAT_NR_PAGES_SCANNED = 29,
-  VMSTAT_WORKINGSET_REFAULT = 30,
-  VMSTAT_WORKINGSET_ACTIVATE = 31,
-  VMSTAT_WORKINGSET_NODERECLAIM = 32,
-  VMSTAT_NR_ANON_TRANSPARENT_HUGEPAGES = 33,
-  VMSTAT_NR_FREE_CMA = 34,
-  VMSTAT_NR_SWAPCACHE = 35,
-  VMSTAT_NR_DIRTY_THRESHOLD = 36,
-  VMSTAT_NR_DIRTY_BACKGROUND_THRESHOLD = 37,
-  VMSTAT_PGPGIN = 38,
-  VMSTAT_PGPGOUT = 39,
-  VMSTAT_PGPGOUTCLEAN = 40,
-  VMSTAT_PSWPIN = 41,
-  VMSTAT_PSWPOUT = 42,
-  VMSTAT_PGALLOC_DMA = 43,
-  VMSTAT_PGALLOC_NORMAL = 44,
-  VMSTAT_PGALLOC_MOVABLE = 45,
-  VMSTAT_PGFREE = 46,
-  VMSTAT_PGACTIVATE = 47,
-  VMSTAT_PGDEACTIVATE = 48,
-  VMSTAT_PGFAULT = 49,
-  VMSTAT_PGMAJFAULT = 50,
-  VMSTAT_PGREFILL_DMA = 51,
-  VMSTAT_PGREFILL_NORMAL = 52,
-  VMSTAT_PGREFILL_MOVABLE = 53,
-  VMSTAT_PGSTEAL_KSWAPD_DMA = 54,
-  VMSTAT_PGSTEAL_KSWAPD_NORMAL = 55,
-  VMSTAT_PGSTEAL_KSWAPD_MOVABLE = 56,
-  VMSTAT_PGSTEAL_DIRECT_DMA = 57,
-  VMSTAT_PGSTEAL_DIRECT_NORMAL = 58,
-  VMSTAT_PGSTEAL_DIRECT_MOVABLE = 59,
-  VMSTAT_PGSCAN_KSWAPD_DMA = 60,
-  VMSTAT_PGSCAN_KSWAPD_NORMAL = 61,
-  VMSTAT_PGSCAN_KSWAPD_MOVABLE = 62,
-  VMSTAT_PGSCAN_DIRECT_DMA = 63,
-  VMSTAT_PGSCAN_DIRECT_NORMAL = 64,
-  VMSTAT_PGSCAN_DIRECT_MOVABLE = 65,
-  VMSTAT_PGSCAN_DIRECT_THROTTLE = 66,
-  VMSTAT_PGINODESTEAL = 67,
-  VMSTAT_SLABS_SCANNED = 68,
-  VMSTAT_KSWAPD_INODESTEAL = 69,
-  VMSTAT_KSWAPD_LOW_WMARK_HIT_QUICKLY = 70,
-  VMSTAT_KSWAPD_HIGH_WMARK_HIT_QUICKLY = 71,
-  VMSTAT_PAGEOUTRUN = 72,
-  VMSTAT_ALLOCSTALL = 73,
-  VMSTAT_PGROTATED = 74,
-  VMSTAT_DROP_PAGECACHE = 75,
-  VMSTAT_DROP_SLAB = 76,
-  VMSTAT_PGMIGRATE_SUCCESS = 77,
-  VMSTAT_PGMIGRATE_FAIL = 78,
-  VMSTAT_COMPACT_MIGRATE_SCANNED = 79,
-  VMSTAT_COMPACT_FREE_SCANNED = 80,
-  VMSTAT_COMPACT_ISOLATED = 81,
-  VMSTAT_COMPACT_STALL = 82,
-  VMSTAT_COMPACT_FAIL = 83,
-  VMSTAT_COMPACT_SUCCESS = 84,
-  VMSTAT_COMPACT_DAEMON_WAKE = 85,
-  VMSTAT_UNEVICTABLE_PGS_CULLED = 86,
-  VMSTAT_UNEVICTABLE_PGS_SCANNED = 87,
-  VMSTAT_UNEVICTABLE_PGS_RESCUED = 88,
-  VMSTAT_UNEVICTABLE_PGS_MLOCKED = 89,
-  VMSTAT_UNEVICTABLE_PGS_MUNLOCKED = 90,
-  VMSTAT_UNEVICTABLE_PGS_CLEARED = 91,
-  VMSTAT_UNEVICTABLE_PGS_STRANDED = 92,
-  VMSTAT_NR_ZSPAGES = 93,
-  VMSTAT_NR_ION_HEAP = 94,
-  VMSTAT_NR_GPU_HEAP = 95,
-  VMSTAT_ALLOCSTALL_DMA = 96,
-  VMSTAT_ALLOCSTALL_MOVABLE = 97,
-  VMSTAT_ALLOCSTALL_NORMAL = 98,
-  VMSTAT_COMPACT_DAEMON_FREE_SCANNED = 99,
-  VMSTAT_COMPACT_DAEMON_MIGRATE_SCANNED = 100,
-  VMSTAT_NR_FASTRPC = 101,
-  VMSTAT_NR_INDIRECTLY_RECLAIMABLE = 102,
-  VMSTAT_NR_ION_HEAP_POOL = 103,
-  VMSTAT_NR_KERNEL_MISC_RECLAIMABLE = 104,
-  VMSTAT_NR_SHADOW_CALL_STACK_BYTES = 105,
-  VMSTAT_NR_SHMEM_HUGEPAGES = 106,
-  VMSTAT_NR_SHMEM_PMDMAPPED = 107,
-  VMSTAT_NR_UNRECLAIMABLE_PAGES = 108,
-  VMSTAT_NR_ZONE_ACTIVE_ANON = 109,
-  VMSTAT_NR_ZONE_ACTIVE_FILE = 110,
-  VMSTAT_NR_ZONE_INACTIVE_ANON = 111,
-  VMSTAT_NR_ZONE_INACTIVE_FILE = 112,
-  VMSTAT_NR_ZONE_UNEVICTABLE = 113,
-  VMSTAT_NR_ZONE_WRITE_PENDING = 114,
-  VMSTAT_OOM_KILL = 115,
-  VMSTAT_PGLAZYFREE = 116,
-  VMSTAT_PGLAZYFREED = 117,
-  VMSTAT_PGREFILL = 118,
-  VMSTAT_PGSCAN_DIRECT = 119,
-  VMSTAT_PGSCAN_KSWAPD = 120,
-  VMSTAT_PGSKIP_DMA = 121,
-  VMSTAT_PGSKIP_MOVABLE = 122,
-  VMSTAT_PGSKIP_NORMAL = 123,
-  VMSTAT_PGSTEAL_DIRECT = 124,
-  VMSTAT_PGSTEAL_KSWAPD = 125,
-  VMSTAT_SWAP_RA = 126,
-  VMSTAT_SWAP_RA_HIT = 127,
-  VMSTAT_WORKINGSET_RESTORE = 128,
-};
-}  // namespace perfetto
-}  // namespace protos
-}  // namespace gen
-
-#endif  // PERFETTO_PROTOS_PROTOS_PERFETTO_COMMON_SYS_STATS_COUNTERS_PROTO_CPP_H_
-// gen_amalgamated expanded: #include "perfetto/protozero/message.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/packed_repeated_fields.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/proto_decoder.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/scattered_heap_buffer.h"
-// DO NOT EDIT. Autogenerated by Perfetto cppgen_plugin
-#if defined(__GNUC__) || defined(__clang__)
-#pragma GCC diagnostic push
-#pragma GCC diagnostic ignored "-Wfloat-equal"
-#endif
-// gen_amalgamated expanded: #include "protos/perfetto/common/sys_stats_counters.gen.h"
-
-namespace perfetto {
-namespace protos {
-namespace gen {
-}  // namespace perfetto
-}  // namespace protos
-}  // namespace gen
-#if defined(__GNUC__) || defined(__clang__)
-#pragma GCC diagnostic pop
-#endif
-// gen_amalgamated begin source: gen/protos/perfetto/common/trace_stats.gen.cc
-// gen_amalgamated begin header: gen/protos/perfetto/common/trace_stats.gen.h
-// DO NOT EDIT. Autogenerated by Perfetto cppgen_plugin
-#ifndef PERFETTO_PROTOS_PROTOS_PERFETTO_COMMON_TRACE_STATS_PROTO_CPP_H_
-#define PERFETTO_PROTOS_PROTOS_PERFETTO_COMMON_TRACE_STATS_PROTO_CPP_H_
-
-#include <stdint.h>
-#include <bitset>
-#include <vector>
-#include <string>
-#include <type_traits>
-
-// gen_amalgamated expanded: #include "perfetto/protozero/cpp_message_obj.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/copyable_ptr.h"
-// gen_amalgamated expanded: #include "perfetto/base/export.h"
-
-namespace perfetto {
-namespace protos {
-namespace gen {
-class TraceStats;
-class TraceStats_FilterStats;
-class TraceStats_BufferStats;
-}  // namespace perfetto
-}  // namespace protos
-}  // namespace gen
-
-namespace protozero {
-class Message;
-}  // namespace protozero
-
-namespace perfetto {
-namespace protos {
-namespace gen {
-
-class PERFETTO_EXPORT TraceStats : public ::protozero::CppMessageObj {
- public:
-  using BufferStats = TraceStats_BufferStats;
-  using FilterStats = TraceStats_FilterStats;
-  enum FieldNumbers {
-    kBufferStatsFieldNumber = 1,
-    kProducersConnectedFieldNumber = 2,
-    kProducersSeenFieldNumber = 3,
-    kDataSourcesRegisteredFieldNumber = 4,
-    kDataSourcesSeenFieldNumber = 5,
-    kTracingSessionsFieldNumber = 6,
-    kTotalBuffersFieldNumber = 7,
-    kChunksDiscardedFieldNumber = 8,
-    kPatchesDiscardedFieldNumber = 9,
-    kInvalidPacketsFieldNumber = 10,
-    kFilterStatsFieldNumber = 11,
-  };
-
-  TraceStats();
-  ~TraceStats() override;
-  TraceStats(TraceStats&&) noexcept;
-  TraceStats& operator=(TraceStats&&);
-  TraceStats(const TraceStats&);
-  TraceStats& operator=(const TraceStats&);
-  bool operator==(const TraceStats&) const;
-  bool operator!=(const TraceStats& other) const { return !(*this == other); }
-
-  bool ParseFromArray(const void*, size_t) override;
-  std::string SerializeAsString() const override;
-  std::vector<uint8_t> SerializeAsArray() const override;
-  void Serialize(::protozero::Message*) const;
-
-  const std::vector<TraceStats_BufferStats>& buffer_stats() const { return buffer_stats_; }
-  std::vector<TraceStats_BufferStats>* mutable_buffer_stats() { return &buffer_stats_; }
-  int buffer_stats_size() const;
-  void clear_buffer_stats();
-  TraceStats_BufferStats* add_buffer_stats();
-
-  bool has_producers_connected() const { return _has_field_[2]; }
-  uint32_t producers_connected() const { return producers_connected_; }
-  void set_producers_connected(uint32_t value) { producers_connected_ = value; _has_field_.set(2); }
-
-  bool has_producers_seen() const { return _has_field_[3]; }
-  uint64_t producers_seen() const { return producers_seen_; }
-  void set_producers_seen(uint64_t value) { producers_seen_ = value; _has_field_.set(3); }
-
-  bool has_data_sources_registered() const { return _has_field_[4]; }
-  uint32_t data_sources_registered() const { return data_sources_registered_; }
-  void set_data_sources_registered(uint32_t value) { data_sources_registered_ = value; _has_field_.set(4); }
-
-  bool has_data_sources_seen() const { return _has_field_[5]; }
-  uint64_t data_sources_seen() const { return data_sources_seen_; }
-  void set_data_sources_seen(uint64_t value) { data_sources_seen_ = value; _has_field_.set(5); }
-
-  bool has_tracing_sessions() const { return _has_field_[6]; }
-  uint32_t tracing_sessions() const { return tracing_sessions_; }
-  void set_tracing_sessions(uint32_t value) { tracing_sessions_ = value; _has_field_.set(6); }
-
-  bool has_total_buffers() const { return _has_field_[7]; }
-  uint32_t total_buffers() const { return total_buffers_; }
-  void set_total_buffers(uint32_t value) { total_buffers_ = value; _has_field_.set(7); }
-
-  bool has_chunks_discarded() const { return _has_field_[8]; }
-  uint64_t chunks_discarded() const { return chunks_discarded_; }
-  void set_chunks_discarded(uint64_t value) { chunks_discarded_ = value; _has_field_.set(8); }
-
-  bool has_patches_discarded() const { return _has_field_[9]; }
-  uint64_t patches_discarded() const { return patches_discarded_; }
-  void set_patches_discarded(uint64_t value) { patches_discarded_ = value; _has_field_.set(9); }
-
-  bool has_invalid_packets() const { return _has_field_[10]; }
-  uint64_t invalid_packets() const { return invalid_packets_; }
-  void set_invalid_packets(uint64_t value) { invalid_packets_ = value; _has_field_.set(10); }
-
-  bool has_filter_stats() const { return _has_field_[11]; }
-  const TraceStats_FilterStats& filter_stats() const { return *filter_stats_; }
-  TraceStats_FilterStats* mutable_filter_stats() { _has_field_.set(11); return filter_stats_.get(); }
-
- private:
-  std::vector<TraceStats_BufferStats> buffer_stats_;
-  uint32_t producers_connected_{};
-  uint64_t producers_seen_{};
-  uint32_t data_sources_registered_{};
-  uint64_t data_sources_seen_{};
-  uint32_t tracing_sessions_{};
-  uint32_t total_buffers_{};
-  uint64_t chunks_discarded_{};
-  uint64_t patches_discarded_{};
-  uint64_t invalid_packets_{};
-  ::protozero::CopyablePtr<TraceStats_FilterStats> filter_stats_;
-
-  // Allows to preserve unknown protobuf fields for compatibility
-  // with future versions of .proto files.
-  std::string unknown_fields_;
-
-  std::bitset<12> _has_field_{};
-};
-
-
-class PERFETTO_EXPORT TraceStats_FilterStats : public ::protozero::CppMessageObj {
- public:
-  enum FieldNumbers {
-    kInputPacketsFieldNumber = 1,
-    kInputBytesFieldNumber = 2,
-    kOutputBytesFieldNumber = 3,
-    kErrorsFieldNumber = 4,
-  };
-
-  TraceStats_FilterStats();
-  ~TraceStats_FilterStats() override;
-  TraceStats_FilterStats(TraceStats_FilterStats&&) noexcept;
-  TraceStats_FilterStats& operator=(TraceStats_FilterStats&&);
-  TraceStats_FilterStats(const TraceStats_FilterStats&);
-  TraceStats_FilterStats& operator=(const TraceStats_FilterStats&);
-  bool operator==(const TraceStats_FilterStats&) const;
-  bool operator!=(const TraceStats_FilterStats& other) const { return !(*this == other); }
-
-  bool ParseFromArray(const void*, size_t) override;
-  std::string SerializeAsString() const override;
-  std::vector<uint8_t> SerializeAsArray() const override;
-  void Serialize(::protozero::Message*) const;
-
-  bool has_input_packets() const { return _has_field_[1]; }
-  uint64_t input_packets() const { return input_packets_; }
-  void set_input_packets(uint64_t value) { input_packets_ = value; _has_field_.set(1); }
-
-  bool has_input_bytes() const { return _has_field_[2]; }
-  uint64_t input_bytes() const { return input_bytes_; }
-  void set_input_bytes(uint64_t value) { input_bytes_ = value; _has_field_.set(2); }
-
-  bool has_output_bytes() const { return _has_field_[3]; }
-  uint64_t output_bytes() const { return output_bytes_; }
-  void set_output_bytes(uint64_t value) { output_bytes_ = value; _has_field_.set(3); }
-
-  bool has_errors() const { return _has_field_[4]; }
-  uint64_t errors() const { return errors_; }
-  void set_errors(uint64_t value) { errors_ = value; _has_field_.set(4); }
-
- private:
-  uint64_t input_packets_{};
-  uint64_t input_bytes_{};
-  uint64_t output_bytes_{};
-  uint64_t errors_{};
-
-  // Allows to preserve unknown protobuf fields for compatibility
-  // with future versions of .proto files.
-  std::string unknown_fields_;
-
-  std::bitset<5> _has_field_{};
-};
-
-
-class PERFETTO_EXPORT TraceStats_BufferStats : public ::protozero::CppMessageObj {
- public:
-  enum FieldNumbers {
-    kBufferSizeFieldNumber = 12,
-    kBytesWrittenFieldNumber = 1,
-    kBytesOverwrittenFieldNumber = 13,
-    kBytesReadFieldNumber = 14,
-    kPaddingBytesWrittenFieldNumber = 15,
-    kPaddingBytesClearedFieldNumber = 16,
-    kChunksWrittenFieldNumber = 2,
-    kChunksRewrittenFieldNumber = 10,
-    kChunksOverwrittenFieldNumber = 3,
-    kChunksDiscardedFieldNumber = 18,
-    kChunksReadFieldNumber = 17,
-    kChunksCommittedOutOfOrderFieldNumber = 11,
-    kWriteWrapCountFieldNumber = 4,
-    kPatchesSucceededFieldNumber = 5,
-    kPatchesFailedFieldNumber = 6,
-    kReadaheadsSucceededFieldNumber = 7,
-    kReadaheadsFailedFieldNumber = 8,
-    kAbiViolationsFieldNumber = 9,
-    kTraceWriterPacketLossFieldNumber = 19,
-  };
-
-  TraceStats_BufferStats();
-  ~TraceStats_BufferStats() override;
-  TraceStats_BufferStats(TraceStats_BufferStats&&) noexcept;
-  TraceStats_BufferStats& operator=(TraceStats_BufferStats&&);
-  TraceStats_BufferStats(const TraceStats_BufferStats&);
-  TraceStats_BufferStats& operator=(const TraceStats_BufferStats&);
-  bool operator==(const TraceStats_BufferStats&) const;
-  bool operator!=(const TraceStats_BufferStats& other) const { return !(*this == other); }
-
-  bool ParseFromArray(const void*, size_t) override;
-  std::string SerializeAsString() const override;
-  std::vector<uint8_t> SerializeAsArray() const override;
-  void Serialize(::protozero::Message*) const;
-
-  bool has_buffer_size() const { return _has_field_[12]; }
-  uint64_t buffer_size() const { return buffer_size_; }
-  void set_buffer_size(uint64_t value) { buffer_size_ = value; _has_field_.set(12); }
-
-  bool has_bytes_written() const { return _has_field_[1]; }
-  uint64_t bytes_written() const { return bytes_written_; }
-  void set_bytes_written(uint64_t value) { bytes_written_ = value; _has_field_.set(1); }
-
-  bool has_bytes_overwritten() const { return _has_field_[13]; }
-  uint64_t bytes_overwritten() const { return bytes_overwritten_; }
-  void set_bytes_overwritten(uint64_t value) { bytes_overwritten_ = value; _has_field_.set(13); }
-
-  bool has_bytes_read() const { return _has_field_[14]; }
-  uint64_t bytes_read() const { return bytes_read_; }
-  void set_bytes_read(uint64_t value) { bytes_read_ = value; _has_field_.set(14); }
-
-  bool has_padding_bytes_written() const { return _has_field_[15]; }
-  uint64_t padding_bytes_written() const { return padding_bytes_written_; }
-  void set_padding_bytes_written(uint64_t value) { padding_bytes_written_ = value; _has_field_.set(15); }
-
-  bool has_padding_bytes_cleared() const { return _has_field_[16]; }
-  uint64_t padding_bytes_cleared() const { return padding_bytes_cleared_; }
-  void set_padding_bytes_cleared(uint64_t value) { padding_bytes_cleared_ = value; _has_field_.set(16); }
-
-  bool has_chunks_written() const { return _has_field_[2]; }
-  uint64_t chunks_written() const { return chunks_written_; }
-  void set_chunks_written(uint64_t value) { chunks_written_ = value; _has_field_.set(2); }
-
-  bool has_chunks_rewritten() const { return _has_field_[10]; }
-  uint64_t chunks_rewritten() const { return chunks_rewritten_; }
-  void set_chunks_rewritten(uint64_t value) { chunks_rewritten_ = value; _has_field_.set(10); }
-
-  bool has_chunks_overwritten() const { return _has_field_[3]; }
-  uint64_t chunks_overwritten() const { return chunks_overwritten_; }
-  void set_chunks_overwritten(uint64_t value) { chunks_overwritten_ = value; _has_field_.set(3); }
-
-  bool has_chunks_discarded() const { return _has_field_[18]; }
-  uint64_t chunks_discarded() const { return chunks_discarded_; }
-  void set_chunks_discarded(uint64_t value) { chunks_discarded_ = value; _has_field_.set(18); }
-
-  bool has_chunks_read() const { return _has_field_[17]; }
-  uint64_t chunks_read() const { return chunks_read_; }
-  void set_chunks_read(uint64_t value) { chunks_read_ = value; _has_field_.set(17); }
-
-  bool has_chunks_committed_out_of_order() const { return _has_field_[11]; }
-  uint64_t chunks_committed_out_of_order() const { return chunks_committed_out_of_order_; }
-  void set_chunks_committed_out_of_order(uint64_t value) { chunks_committed_out_of_order_ = value; _has_field_.set(11); }
-
-  bool has_write_wrap_count() const { return _has_field_[4]; }
-  uint64_t write_wrap_count() const { return write_wrap_count_; }
-  void set_write_wrap_count(uint64_t value) { write_wrap_count_ = value; _has_field_.set(4); }
-
-  bool has_patches_succeeded() const { return _has_field_[5]; }
-  uint64_t patches_succeeded() const { return patches_succeeded_; }
-  void set_patches_succeeded(uint64_t value) { patches_succeeded_ = value; _has_field_.set(5); }
-
-  bool has_patches_failed() const { return _has_field_[6]; }
-  uint64_t patches_failed() const { return patches_failed_; }
-  void set_patches_failed(uint64_t value) { patches_failed_ = value; _has_field_.set(6); }
-
-  bool has_readaheads_succeeded() const { return _has_field_[7]; }
-  uint64_t readaheads_succeeded() const { return readaheads_succeeded_; }
-  void set_readaheads_succeeded(uint64_t value) { readaheads_succeeded_ = value; _has_field_.set(7); }
-
-  bool has_readaheads_failed() const { return _has_field_[8]; }
-  uint64_t readaheads_failed() const { return readaheads_failed_; }
-  void set_readaheads_failed(uint64_t value) { readaheads_failed_ = value; _has_field_.set(8); }
-
-  bool has_abi_violations() const { return _has_field_[9]; }
-  uint64_t abi_violations() const { return abi_violations_; }
-  void set_abi_violations(uint64_t value) { abi_violations_ = value; _has_field_.set(9); }
-
-  bool has_trace_writer_packet_loss() const { return _has_field_[19]; }
-  uint64_t trace_writer_packet_loss() const { return trace_writer_packet_loss_; }
-  void set_trace_writer_packet_loss(uint64_t value) { trace_writer_packet_loss_ = value; _has_field_.set(19); }
-
- private:
-  uint64_t buffer_size_{};
-  uint64_t bytes_written_{};
-  uint64_t bytes_overwritten_{};
-  uint64_t bytes_read_{};
-  uint64_t padding_bytes_written_{};
-  uint64_t padding_bytes_cleared_{};
-  uint64_t chunks_written_{};
-  uint64_t chunks_rewritten_{};
-  uint64_t chunks_overwritten_{};
-  uint64_t chunks_discarded_{};
-  uint64_t chunks_read_{};
-  uint64_t chunks_committed_out_of_order_{};
-  uint64_t write_wrap_count_{};
-  uint64_t patches_succeeded_{};
-  uint64_t patches_failed_{};
-  uint64_t readaheads_succeeded_{};
-  uint64_t readaheads_failed_{};
-  uint64_t abi_violations_{};
-  uint64_t trace_writer_packet_loss_{};
-
-  // Allows to preserve unknown protobuf fields for compatibility
-  // with future versions of .proto files.
-  std::string unknown_fields_;
-
-  std::bitset<20> _has_field_{};
-};
-
-}  // namespace perfetto
-}  // namespace protos
-}  // namespace gen
-
-#endif  // PERFETTO_PROTOS_PROTOS_PERFETTO_COMMON_TRACE_STATS_PROTO_CPP_H_
-// gen_amalgamated expanded: #include "perfetto/protozero/message.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/packed_repeated_fields.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/proto_decoder.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/scattered_heap_buffer.h"
-// DO NOT EDIT. Autogenerated by Perfetto cppgen_plugin
-#if defined(__GNUC__) || defined(__clang__)
-#pragma GCC diagnostic push
-#pragma GCC diagnostic ignored "-Wfloat-equal"
-#endif
-// gen_amalgamated expanded: #include "protos/perfetto/common/trace_stats.gen.h"
-
-namespace perfetto {
-namespace protos {
-namespace gen {
-
-TraceStats::TraceStats() = default;
-TraceStats::~TraceStats() = default;
-TraceStats::TraceStats(const TraceStats&) = default;
-TraceStats& TraceStats::operator=(const TraceStats&) = default;
-TraceStats::TraceStats(TraceStats&&) noexcept = default;
-TraceStats& TraceStats::operator=(TraceStats&&) = default;
-
-bool TraceStats::operator==(const TraceStats& other) const {
-  return unknown_fields_ == other.unknown_fields_
-   && buffer_stats_ == other.buffer_stats_
-   && producers_connected_ == other.producers_connected_
-   && producers_seen_ == other.producers_seen_
-   && data_sources_registered_ == other.data_sources_registered_
-   && data_sources_seen_ == other.data_sources_seen_
-   && tracing_sessions_ == other.tracing_sessions_
-   && total_buffers_ == other.total_buffers_
-   && chunks_discarded_ == other.chunks_discarded_
-   && patches_discarded_ == other.patches_discarded_
-   && invalid_packets_ == other.invalid_packets_
-   && filter_stats_ == other.filter_stats_;
-}
-
-int TraceStats::buffer_stats_size() const { return static_cast<int>(buffer_stats_.size()); }
-void TraceStats::clear_buffer_stats() { buffer_stats_.clear(); }
-TraceStats_BufferStats* TraceStats::add_buffer_stats() { buffer_stats_.emplace_back(); return &buffer_stats_.back(); }
-bool TraceStats::ParseFromArray(const void* raw, size_t size) {
-  buffer_stats_.clear();
-  unknown_fields_.clear();
-  bool packed_error = false;
-
-  ::protozero::ProtoDecoder dec(raw, size);
-  for (auto field = dec.ReadField(); field.valid(); field = dec.ReadField()) {
-    if (field.id() < _has_field_.size()) {
-      _has_field_.set(field.id());
-    }
-    switch (field.id()) {
-      case 1 /* buffer_stats */:
-        buffer_stats_.emplace_back();
-        buffer_stats_.back().ParseFromArray(field.data(), field.size());
-        break;
-      case 2 /* producers_connected */:
-        field.get(&producers_connected_);
-        break;
-      case 3 /* producers_seen */:
-        field.get(&producers_seen_);
-        break;
-      case 4 /* data_sources_registered */:
-        field.get(&data_sources_registered_);
-        break;
-      case 5 /* data_sources_seen */:
-        field.get(&data_sources_seen_);
-        break;
-      case 6 /* tracing_sessions */:
-        field.get(&tracing_sessions_);
-        break;
-      case 7 /* total_buffers */:
-        field.get(&total_buffers_);
-        break;
-      case 8 /* chunks_discarded */:
-        field.get(&chunks_discarded_);
-        break;
-      case 9 /* patches_discarded */:
-        field.get(&patches_discarded_);
-        break;
-      case 10 /* invalid_packets */:
-        field.get(&invalid_packets_);
-        break;
-      case 11 /* filter_stats */:
-        (*filter_stats_).ParseFromArray(field.data(), field.size());
-        break;
-      default:
-        field.SerializeAndAppendTo(&unknown_fields_);
-        break;
-    }
-  }
-  return !packed_error && !dec.bytes_left();
-}
-
-std::string TraceStats::SerializeAsString() const {
-  ::protozero::HeapBuffered<::protozero::Message> msg;
-  Serialize(msg.get());
-  return msg.SerializeAsString();
-}
-
-std::vector<uint8_t> TraceStats::SerializeAsArray() const {
-  ::protozero::HeapBuffered<::protozero::Message> msg;
-  Serialize(msg.get());
-  return msg.SerializeAsArray();
-}
-
-void TraceStats::Serialize(::protozero::Message* msg) const {
-  // Field 1: buffer_stats
-  for (auto& it : buffer_stats_) {
-    it.Serialize(msg->BeginNestedMessage<::protozero::Message>(1));
-  }
-
-  // Field 2: producers_connected
-  if (_has_field_[2]) {
-    msg->AppendVarInt(2, producers_connected_);
-  }
-
-  // Field 3: producers_seen
-  if (_has_field_[3]) {
-    msg->AppendVarInt(3, producers_seen_);
-  }
-
-  // Field 4: data_sources_registered
-  if (_has_field_[4]) {
-    msg->AppendVarInt(4, data_sources_registered_);
-  }
-
-  // Field 5: data_sources_seen
-  if (_has_field_[5]) {
-    msg->AppendVarInt(5, data_sources_seen_);
-  }
-
-  // Field 6: tracing_sessions
-  if (_has_field_[6]) {
-    msg->AppendVarInt(6, tracing_sessions_);
-  }
-
-  // Field 7: total_buffers
-  if (_has_field_[7]) {
-    msg->AppendVarInt(7, total_buffers_);
-  }
-
-  // Field 8: chunks_discarded
-  if (_has_field_[8]) {
-    msg->AppendVarInt(8, chunks_discarded_);
-  }
-
-  // Field 9: patches_discarded
-  if (_has_field_[9]) {
-    msg->AppendVarInt(9, patches_discarded_);
-  }
-
-  // Field 10: invalid_packets
-  if (_has_field_[10]) {
-    msg->AppendVarInt(10, invalid_packets_);
-  }
-
-  // Field 11: filter_stats
-  if (_has_field_[11]) {
-    (*filter_stats_).Serialize(msg->BeginNestedMessage<::protozero::Message>(11));
-  }
-
-  msg->AppendRawProtoBytes(unknown_fields_.data(), unknown_fields_.size());
-}
-
-
-TraceStats_FilterStats::TraceStats_FilterStats() = default;
-TraceStats_FilterStats::~TraceStats_FilterStats() = default;
-TraceStats_FilterStats::TraceStats_FilterStats(const TraceStats_FilterStats&) = default;
-TraceStats_FilterStats& TraceStats_FilterStats::operator=(const TraceStats_FilterStats&) = default;
-TraceStats_FilterStats::TraceStats_FilterStats(TraceStats_FilterStats&&) noexcept = default;
-TraceStats_FilterStats& TraceStats_FilterStats::operator=(TraceStats_FilterStats&&) = default;
-
-bool TraceStats_FilterStats::operator==(const TraceStats_FilterStats& other) const {
-  return unknown_fields_ == other.unknown_fields_
-   && input_packets_ == other.input_packets_
-   && input_bytes_ == other.input_bytes_
-   && output_bytes_ == other.output_bytes_
-   && errors_ == other.errors_;
-}
-
-bool TraceStats_FilterStats::ParseFromArray(const void* raw, size_t size) {
-  unknown_fields_.clear();
-  bool packed_error = false;
-
-  ::protozero::ProtoDecoder dec(raw, size);
-  for (auto field = dec.ReadField(); field.valid(); field = dec.ReadField()) {
-    if (field.id() < _has_field_.size()) {
-      _has_field_.set(field.id());
-    }
-    switch (field.id()) {
-      case 1 /* input_packets */:
-        field.get(&input_packets_);
-        break;
-      case 2 /* input_bytes */:
-        field.get(&input_bytes_);
-        break;
-      case 3 /* output_bytes */:
-        field.get(&output_bytes_);
-        break;
-      case 4 /* errors */:
-        field.get(&errors_);
-        break;
-      default:
-        field.SerializeAndAppendTo(&unknown_fields_);
-        break;
-    }
-  }
-  return !packed_error && !dec.bytes_left();
-}
-
-std::string TraceStats_FilterStats::SerializeAsString() const {
-  ::protozero::HeapBuffered<::protozero::Message> msg;
-  Serialize(msg.get());
-  return msg.SerializeAsString();
-}
-
-std::vector<uint8_t> TraceStats_FilterStats::SerializeAsArray() const {
-  ::protozero::HeapBuffered<::protozero::Message> msg;
-  Serialize(msg.get());
-  return msg.SerializeAsArray();
-}
-
-void TraceStats_FilterStats::Serialize(::protozero::Message* msg) const {
-  // Field 1: input_packets
-  if (_has_field_[1]) {
-    msg->AppendVarInt(1, input_packets_);
-  }
-
-  // Field 2: input_bytes
-  if (_has_field_[2]) {
-    msg->AppendVarInt(2, input_bytes_);
-  }
-
-  // Field 3: output_bytes
-  if (_has_field_[3]) {
-    msg->AppendVarInt(3, output_bytes_);
-  }
-
-  // Field 4: errors
-  if (_has_field_[4]) {
-    msg->AppendVarInt(4, errors_);
-  }
-
-  msg->AppendRawProtoBytes(unknown_fields_.data(), unknown_fields_.size());
-}
-
-
-TraceStats_BufferStats::TraceStats_BufferStats() = default;
-TraceStats_BufferStats::~TraceStats_BufferStats() = default;
-TraceStats_BufferStats::TraceStats_BufferStats(const TraceStats_BufferStats&) = default;
-TraceStats_BufferStats& TraceStats_BufferStats::operator=(const TraceStats_BufferStats&) = default;
-TraceStats_BufferStats::TraceStats_BufferStats(TraceStats_BufferStats&&) noexcept = default;
-TraceStats_BufferStats& TraceStats_BufferStats::operator=(TraceStats_BufferStats&&) = default;
-
-bool TraceStats_BufferStats::operator==(const TraceStats_BufferStats& other) const {
-  return unknown_fields_ == other.unknown_fields_
-   && buffer_size_ == other.buffer_size_
-   && bytes_written_ == other.bytes_written_
-   && bytes_overwritten_ == other.bytes_overwritten_
-   && bytes_read_ == other.bytes_read_
-   && padding_bytes_written_ == other.padding_bytes_written_
-   && padding_bytes_cleared_ == other.padding_bytes_cleared_
-   && chunks_written_ == other.chunks_written_
-   && chunks_rewritten_ == other.chunks_rewritten_
-   && chunks_overwritten_ == other.chunks_overwritten_
-   && chunks_discarded_ == other.chunks_discarded_
-   && chunks_read_ == other.chunks_read_
-   && chunks_committed_out_of_order_ == other.chunks_committed_out_of_order_
-   && write_wrap_count_ == other.write_wrap_count_
-   && patches_succeeded_ == other.patches_succeeded_
-   && patches_failed_ == other.patches_failed_
-   && readaheads_succeeded_ == other.readaheads_succeeded_
-   && readaheads_failed_ == other.readaheads_failed_
-   && abi_violations_ == other.abi_violations_
-   && trace_writer_packet_loss_ == other.trace_writer_packet_loss_;
-}
-
-bool TraceStats_BufferStats::ParseFromArray(const void* raw, size_t size) {
-  unknown_fields_.clear();
-  bool packed_error = false;
-
-  ::protozero::ProtoDecoder dec(raw, size);
-  for (auto field = dec.ReadField(); field.valid(); field = dec.ReadField()) {
-    if (field.id() < _has_field_.size()) {
-      _has_field_.set(field.id());
-    }
-    switch (field.id()) {
-      case 12 /* buffer_size */:
-        field.get(&buffer_size_);
-        break;
-      case 1 /* bytes_written */:
-        field.get(&bytes_written_);
-        break;
-      case 13 /* bytes_overwritten */:
-        field.get(&bytes_overwritten_);
-        break;
-      case 14 /* bytes_read */:
-        field.get(&bytes_read_);
-        break;
-      case 15 /* padding_bytes_written */:
-        field.get(&padding_bytes_written_);
-        break;
-      case 16 /* padding_bytes_cleared */:
-        field.get(&padding_bytes_cleared_);
-        break;
-      case 2 /* chunks_written */:
-        field.get(&chunks_written_);
-        break;
-      case 10 /* chunks_rewritten */:
-        field.get(&chunks_rewritten_);
-        break;
-      case 3 /* chunks_overwritten */:
-        field.get(&chunks_overwritten_);
-        break;
-      case 18 /* chunks_discarded */:
-        field.get(&chunks_discarded_);
-        break;
-      case 17 /* chunks_read */:
-        field.get(&chunks_read_);
-        break;
-      case 11 /* chunks_committed_out_of_order */:
-        field.get(&chunks_committed_out_of_order_);
-        break;
-      case 4 /* write_wrap_count */:
-        field.get(&write_wrap_count_);
-        break;
-      case 5 /* patches_succeeded */:
-        field.get(&patches_succeeded_);
-        break;
-      case 6 /* patches_failed */:
-        field.get(&patches_failed_);
-        break;
-      case 7 /* readaheads_succeeded */:
-        field.get(&readaheads_succeeded_);
-        break;
-      case 8 /* readaheads_failed */:
-        field.get(&readaheads_failed_);
-        break;
-      case 9 /* abi_violations */:
-        field.get(&abi_violations_);
-        break;
-      case 19 /* trace_writer_packet_loss */:
-        field.get(&trace_writer_packet_loss_);
-        break;
-      default:
-        field.SerializeAndAppendTo(&unknown_fields_);
-        break;
-    }
-  }
-  return !packed_error && !dec.bytes_left();
-}
-
-std::string TraceStats_BufferStats::SerializeAsString() const {
-  ::protozero::HeapBuffered<::protozero::Message> msg;
-  Serialize(msg.get());
-  return msg.SerializeAsString();
-}
-
-std::vector<uint8_t> TraceStats_BufferStats::SerializeAsArray() const {
-  ::protozero::HeapBuffered<::protozero::Message> msg;
-  Serialize(msg.get());
-  return msg.SerializeAsArray();
-}
-
-void TraceStats_BufferStats::Serialize(::protozero::Message* msg) const {
-  // Field 12: buffer_size
-  if (_has_field_[12]) {
-    msg->AppendVarInt(12, buffer_size_);
-  }
-
-  // Field 1: bytes_written
-  if (_has_field_[1]) {
-    msg->AppendVarInt(1, bytes_written_);
-  }
-
-  // Field 13: bytes_overwritten
-  if (_has_field_[13]) {
-    msg->AppendVarInt(13, bytes_overwritten_);
-  }
-
-  // Field 14: bytes_read
-  if (_has_field_[14]) {
-    msg->AppendVarInt(14, bytes_read_);
-  }
-
-  // Field 15: padding_bytes_written
-  if (_has_field_[15]) {
-    msg->AppendVarInt(15, padding_bytes_written_);
-  }
-
-  // Field 16: padding_bytes_cleared
-  if (_has_field_[16]) {
-    msg->AppendVarInt(16, padding_bytes_cleared_);
-  }
-
-  // Field 2: chunks_written
-  if (_has_field_[2]) {
-    msg->AppendVarInt(2, chunks_written_);
-  }
-
-  // Field 10: chunks_rewritten
-  if (_has_field_[10]) {
-    msg->AppendVarInt(10, chunks_rewritten_);
-  }
-
-  // Field 3: chunks_overwritten
-  if (_has_field_[3]) {
-    msg->AppendVarInt(3, chunks_overwritten_);
-  }
-
-  // Field 18: chunks_discarded
-  if (_has_field_[18]) {
-    msg->AppendVarInt(18, chunks_discarded_);
-  }
-
-  // Field 17: chunks_read
-  if (_has_field_[17]) {
-    msg->AppendVarInt(17, chunks_read_);
-  }
-
-  // Field 11: chunks_committed_out_of_order
-  if (_has_field_[11]) {
-    msg->AppendVarInt(11, chunks_committed_out_of_order_);
-  }
-
-  // Field 4: write_wrap_count
-  if (_has_field_[4]) {
-    msg->AppendVarInt(4, write_wrap_count_);
-  }
-
-  // Field 5: patches_succeeded
-  if (_has_field_[5]) {
-    msg->AppendVarInt(5, patches_succeeded_);
-  }
-
-  // Field 6: patches_failed
-  if (_has_field_[6]) {
-    msg->AppendVarInt(6, patches_failed_);
-  }
-
-  // Field 7: readaheads_succeeded
-  if (_has_field_[7]) {
-    msg->AppendVarInt(7, readaheads_succeeded_);
-  }
-
-  // Field 8: readaheads_failed
-  if (_has_field_[8]) {
-    msg->AppendVarInt(8, readaheads_failed_);
-  }
-
-  // Field 9: abi_violations
-  if (_has_field_[9]) {
-    msg->AppendVarInt(9, abi_violations_);
-  }
-
-  // Field 19: trace_writer_packet_loss
-  if (_has_field_[19]) {
-    msg->AppendVarInt(19, trace_writer_packet_loss_);
-  }
-
-  msg->AppendRawProtoBytes(unknown_fields_.data(), unknown_fields_.size());
-}
-
-}  // namespace perfetto
-}  // namespace protos
-}  // namespace gen
-#if defined(__GNUC__) || defined(__clang__)
-#pragma GCC diagnostic pop
-#endif
-// gen_amalgamated begin source: gen/protos/perfetto/common/tracing_service_capabilities.gen.cc
-// gen_amalgamated begin header: gen/protos/perfetto/common/tracing_service_capabilities.gen.h
-// DO NOT EDIT. Autogenerated by Perfetto cppgen_plugin
-#ifndef PERFETTO_PROTOS_PROTOS_PERFETTO_COMMON_TRACING_SERVICE_CAPABILITIES_PROTO_CPP_H_
-#define PERFETTO_PROTOS_PROTOS_PERFETTO_COMMON_TRACING_SERVICE_CAPABILITIES_PROTO_CPP_H_
-
-#include <stdint.h>
-#include <bitset>
-#include <vector>
-#include <string>
-#include <type_traits>
-
-// gen_amalgamated expanded: #include "perfetto/protozero/cpp_message_obj.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/copyable_ptr.h"
-// gen_amalgamated expanded: #include "perfetto/base/export.h"
-
-namespace perfetto {
-namespace protos {
-namespace gen {
-class TracingServiceCapabilities;
-enum ObservableEvents_Type : int;
-}  // namespace perfetto
-}  // namespace protos
-}  // namespace gen
-
-namespace protozero {
-class Message;
-}  // namespace protozero
-
-namespace perfetto {
-namespace protos {
-namespace gen {
-
-class PERFETTO_EXPORT TracingServiceCapabilities : public ::protozero::CppMessageObj {
- public:
-  enum FieldNumbers {
-    kHasQueryCapabilitiesFieldNumber = 1,
-    kObservableEventsFieldNumber = 2,
-    kHasTraceConfigOutputPathFieldNumber = 3,
-  };
-
-  TracingServiceCapabilities();
-  ~TracingServiceCapabilities() override;
-  TracingServiceCapabilities(TracingServiceCapabilities&&) noexcept;
-  TracingServiceCapabilities& operator=(TracingServiceCapabilities&&);
-  TracingServiceCapabilities(const TracingServiceCapabilities&);
-  TracingServiceCapabilities& operator=(const TracingServiceCapabilities&);
-  bool operator==(const TracingServiceCapabilities&) const;
-  bool operator!=(const TracingServiceCapabilities& other) const { return !(*this == other); }
-
-  bool ParseFromArray(const void*, size_t) override;
-  std::string SerializeAsString() const override;
-  std::vector<uint8_t> SerializeAsArray() const override;
-  void Serialize(::protozero::Message*) const;
-
-  bool has_has_query_capabilities() const { return _has_field_[1]; }
-  bool has_query_capabilities() const { return has_query_capabilities_; }
-  void set_has_query_capabilities(bool value) { has_query_capabilities_ = value; _has_field_.set(1); }
-
-  const std::vector<ObservableEvents_Type>& observable_events() const { return observable_events_; }
-  std::vector<ObservableEvents_Type>* mutable_observable_events() { return &observable_events_; }
-  int observable_events_size() const { return static_cast<int>(observable_events_.size()); }
-  void clear_observable_events() { observable_events_.clear(); }
-  void add_observable_events(ObservableEvents_Type value) { observable_events_.emplace_back(value); }
-  ObservableEvents_Type* add_observable_events() { observable_events_.emplace_back(); return &observable_events_.back(); }
-
-  bool has_has_trace_config_output_path() const { return _has_field_[3]; }
-  bool has_trace_config_output_path() const { return has_trace_config_output_path_; }
-  void set_has_trace_config_output_path(bool value) { has_trace_config_output_path_ = value; _has_field_.set(3); }
-
- private:
-  bool has_query_capabilities_{};
-  std::vector<ObservableEvents_Type> observable_events_;
-  bool has_trace_config_output_path_{};
-
-  // Allows to preserve unknown protobuf fields for compatibility
-  // with future versions of .proto files.
-  std::string unknown_fields_;
-
-  std::bitset<4> _has_field_{};
-};
-
-}  // namespace perfetto
-}  // namespace protos
-}  // namespace gen
-
-#endif  // PERFETTO_PROTOS_PROTOS_PERFETTO_COMMON_TRACING_SERVICE_CAPABILITIES_PROTO_CPP_H_
-// gen_amalgamated expanded: #include "perfetto/protozero/message.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/packed_repeated_fields.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/proto_decoder.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/scattered_heap_buffer.h"
-// DO NOT EDIT. Autogenerated by Perfetto cppgen_plugin
-#if defined(__GNUC__) || defined(__clang__)
-#pragma GCC diagnostic push
-#pragma GCC diagnostic ignored "-Wfloat-equal"
-#endif
-// gen_amalgamated expanded: #include "protos/perfetto/common/tracing_service_capabilities.gen.h"
-// gen_amalgamated expanded: #include "protos/perfetto/common/observable_events.gen.h"
-
-namespace perfetto {
-namespace protos {
-namespace gen {
-
-TracingServiceCapabilities::TracingServiceCapabilities() = default;
-TracingServiceCapabilities::~TracingServiceCapabilities() = default;
-TracingServiceCapabilities::TracingServiceCapabilities(const TracingServiceCapabilities&) = default;
-TracingServiceCapabilities& TracingServiceCapabilities::operator=(const TracingServiceCapabilities&) = default;
-TracingServiceCapabilities::TracingServiceCapabilities(TracingServiceCapabilities&&) noexcept = default;
-TracingServiceCapabilities& TracingServiceCapabilities::operator=(TracingServiceCapabilities&&) = default;
-
-bool TracingServiceCapabilities::operator==(const TracingServiceCapabilities& other) const {
-  return unknown_fields_ == other.unknown_fields_
-   && has_query_capabilities_ == other.has_query_capabilities_
-   && observable_events_ == other.observable_events_
-   && has_trace_config_output_path_ == other.has_trace_config_output_path_;
-}
-
-bool TracingServiceCapabilities::ParseFromArray(const void* raw, size_t size) {
-  observable_events_.clear();
-  unknown_fields_.clear();
-  bool packed_error = false;
-
-  ::protozero::ProtoDecoder dec(raw, size);
-  for (auto field = dec.ReadField(); field.valid(); field = dec.ReadField()) {
-    if (field.id() < _has_field_.size()) {
-      _has_field_.set(field.id());
-    }
-    switch (field.id()) {
-      case 1 /* has_query_capabilities */:
-        field.get(&has_query_capabilities_);
-        break;
-      case 2 /* observable_events */:
-        observable_events_.emplace_back();
-        field.get(&observable_events_.back());
-        break;
-      case 3 /* has_trace_config_output_path */:
-        field.get(&has_trace_config_output_path_);
-        break;
-      default:
-        field.SerializeAndAppendTo(&unknown_fields_);
-        break;
-    }
-  }
-  return !packed_error && !dec.bytes_left();
-}
-
-std::string TracingServiceCapabilities::SerializeAsString() const {
-  ::protozero::HeapBuffered<::protozero::Message> msg;
-  Serialize(msg.get());
-  return msg.SerializeAsString();
-}
-
-std::vector<uint8_t> TracingServiceCapabilities::SerializeAsArray() const {
-  ::protozero::HeapBuffered<::protozero::Message> msg;
-  Serialize(msg.get());
-  return msg.SerializeAsArray();
-}
-
-void TracingServiceCapabilities::Serialize(::protozero::Message* msg) const {
-  // Field 1: has_query_capabilities
-  if (_has_field_[1]) {
-    msg->AppendTinyVarInt(1, has_query_capabilities_);
-  }
-
-  // Field 2: observable_events
-  for (auto& it : observable_events_) {
-    msg->AppendVarInt(2, it);
-  }
-
-  // Field 3: has_trace_config_output_path
-  if (_has_field_[3]) {
-    msg->AppendTinyVarInt(3, has_trace_config_output_path_);
-  }
-
-  msg->AppendRawProtoBytes(unknown_fields_.data(), unknown_fields_.size());
-}
-
-}  // namespace perfetto
-}  // namespace protos
-}  // namespace gen
-#if defined(__GNUC__) || defined(__clang__)
-#pragma GCC diagnostic pop
-#endif
-// gen_amalgamated begin source: gen/protos/perfetto/common/tracing_service_state.gen.cc
-// gen_amalgamated begin header: gen/protos/perfetto/common/tracing_service_state.gen.h
-// DO NOT EDIT. Autogenerated by Perfetto cppgen_plugin
-#ifndef PERFETTO_PROTOS_PROTOS_PERFETTO_COMMON_TRACING_SERVICE_STATE_PROTO_CPP_H_
-#define PERFETTO_PROTOS_PROTOS_PERFETTO_COMMON_TRACING_SERVICE_STATE_PROTO_CPP_H_
-
-#include <stdint.h>
-#include <bitset>
-#include <vector>
-#include <string>
-#include <type_traits>
-
-// gen_amalgamated expanded: #include "perfetto/protozero/cpp_message_obj.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/copyable_ptr.h"
-// gen_amalgamated expanded: #include "perfetto/base/export.h"
-
-namespace perfetto {
-namespace protos {
-namespace gen {
-class TracingServiceState;
-class TracingServiceState_DataSource;
-class DataSourceDescriptor;
-class TracingServiceState_Producer;
-}  // namespace perfetto
-}  // namespace protos
-}  // namespace gen
-
-namespace protozero {
-class Message;
-}  // namespace protozero
-
-namespace perfetto {
-namespace protos {
-namespace gen {
-
-class PERFETTO_EXPORT TracingServiceState : public ::protozero::CppMessageObj {
- public:
-  using Producer = TracingServiceState_Producer;
-  using DataSource = TracingServiceState_DataSource;
-  enum FieldNumbers {
-    kProducersFieldNumber = 1,
-    kDataSourcesFieldNumber = 2,
-    kNumSessionsFieldNumber = 3,
-    kNumSessionsStartedFieldNumber = 4,
-    kTracingServiceVersionFieldNumber = 5,
-  };
-
-  TracingServiceState();
-  ~TracingServiceState() override;
-  TracingServiceState(TracingServiceState&&) noexcept;
-  TracingServiceState& operator=(TracingServiceState&&);
-  TracingServiceState(const TracingServiceState&);
-  TracingServiceState& operator=(const TracingServiceState&);
-  bool operator==(const TracingServiceState&) const;
-  bool operator!=(const TracingServiceState& other) const { return !(*this == other); }
-
-  bool ParseFromArray(const void*, size_t) override;
-  std::string SerializeAsString() const override;
-  std::vector<uint8_t> SerializeAsArray() const override;
-  void Serialize(::protozero::Message*) const;
-
-  const std::vector<TracingServiceState_Producer>& producers() const { return producers_; }
-  std::vector<TracingServiceState_Producer>* mutable_producers() { return &producers_; }
-  int producers_size() const;
-  void clear_producers();
-  TracingServiceState_Producer* add_producers();
-
-  const std::vector<TracingServiceState_DataSource>& data_sources() const { return data_sources_; }
-  std::vector<TracingServiceState_DataSource>* mutable_data_sources() { return &data_sources_; }
-  int data_sources_size() const;
-  void clear_data_sources();
-  TracingServiceState_DataSource* add_data_sources();
-
-  bool has_num_sessions() const { return _has_field_[3]; }
-  int32_t num_sessions() const { return num_sessions_; }
-  void set_num_sessions(int32_t value) { num_sessions_ = value; _has_field_.set(3); }
-
-  bool has_num_sessions_started() const { return _has_field_[4]; }
-  int32_t num_sessions_started() const { return num_sessions_started_; }
-  void set_num_sessions_started(int32_t value) { num_sessions_started_ = value; _has_field_.set(4); }
-
-  bool has_tracing_service_version() const { return _has_field_[5]; }
-  const std::string& tracing_service_version() const { return tracing_service_version_; }
-  void set_tracing_service_version(const std::string& value) { tracing_service_version_ = value; _has_field_.set(5); }
-
- private:
-  std::vector<TracingServiceState_Producer> producers_;
-  std::vector<TracingServiceState_DataSource> data_sources_;
-  int32_t num_sessions_{};
-  int32_t num_sessions_started_{};
-  std::string tracing_service_version_{};
-
-  // Allows to preserve unknown protobuf fields for compatibility
-  // with future versions of .proto files.
-  std::string unknown_fields_;
-
-  std::bitset<6> _has_field_{};
-};
-
-
-class PERFETTO_EXPORT TracingServiceState_DataSource : public ::protozero::CppMessageObj {
- public:
-  enum FieldNumbers {
-    kDsDescriptorFieldNumber = 1,
-    kProducerIdFieldNumber = 2,
-  };
-
-  TracingServiceState_DataSource();
-  ~TracingServiceState_DataSource() override;
-  TracingServiceState_DataSource(TracingServiceState_DataSource&&) noexcept;
-  TracingServiceState_DataSource& operator=(TracingServiceState_DataSource&&);
-  TracingServiceState_DataSource(const TracingServiceState_DataSource&);
-  TracingServiceState_DataSource& operator=(const TracingServiceState_DataSource&);
-  bool operator==(const TracingServiceState_DataSource&) const;
-  bool operator!=(const TracingServiceState_DataSource& other) const { return !(*this == other); }
-
-  bool ParseFromArray(const void*, size_t) override;
-  std::string SerializeAsString() const override;
-  std::vector<uint8_t> SerializeAsArray() const override;
-  void Serialize(::protozero::Message*) const;
-
-  bool has_ds_descriptor() const { return _has_field_[1]; }
-  const DataSourceDescriptor& ds_descriptor() const { return *ds_descriptor_; }
-  DataSourceDescriptor* mutable_ds_descriptor() { _has_field_.set(1); return ds_descriptor_.get(); }
-
-  bool has_producer_id() const { return _has_field_[2]; }
-  int32_t producer_id() const { return producer_id_; }
-  void set_producer_id(int32_t value) { producer_id_ = value; _has_field_.set(2); }
-
- private:
-  ::protozero::CopyablePtr<DataSourceDescriptor> ds_descriptor_;
-  int32_t producer_id_{};
-
-  // Allows to preserve unknown protobuf fields for compatibility
-  // with future versions of .proto files.
-  std::string unknown_fields_;
-
-  std::bitset<3> _has_field_{};
-};
-
-
-class PERFETTO_EXPORT TracingServiceState_Producer : public ::protozero::CppMessageObj {
- public:
-  enum FieldNumbers {
-    kIdFieldNumber = 1,
-    kNameFieldNumber = 2,
-    kUidFieldNumber = 3,
-    kSdkVersionFieldNumber = 4,
-  };
-
-  TracingServiceState_Producer();
-  ~TracingServiceState_Producer() override;
-  TracingServiceState_Producer(TracingServiceState_Producer&&) noexcept;
-  TracingServiceState_Producer& operator=(TracingServiceState_Producer&&);
-  TracingServiceState_Producer(const TracingServiceState_Producer&);
-  TracingServiceState_Producer& operator=(const TracingServiceState_Producer&);
-  bool operator==(const TracingServiceState_Producer&) const;
-  bool operator!=(const TracingServiceState_Producer& other) const { return !(*this == other); }
-
-  bool ParseFromArray(const void*, size_t) override;
-  std::string SerializeAsString() const override;
-  std::vector<uint8_t> SerializeAsArray() const override;
-  void Serialize(::protozero::Message*) const;
-
-  bool has_id() const { return _has_field_[1]; }
-  int32_t id() const { return id_; }
-  void set_id(int32_t value) { id_ = value; _has_field_.set(1); }
-
-  bool has_name() const { return _has_field_[2]; }
-  const std::string& name() const { return name_; }
-  void set_name(const std::string& value) { name_ = value; _has_field_.set(2); }
-
-  bool has_uid() const { return _has_field_[3]; }
-  int32_t uid() const { return uid_; }
-  void set_uid(int32_t value) { uid_ = value; _has_field_.set(3); }
-
-  bool has_sdk_version() const { return _has_field_[4]; }
-  const std::string& sdk_version() const { return sdk_version_; }
-  void set_sdk_version(const std::string& value) { sdk_version_ = value; _has_field_.set(4); }
-
- private:
-  int32_t id_{};
-  std::string name_{};
-  int32_t uid_{};
-  std::string sdk_version_{};
-
-  // Allows to preserve unknown protobuf fields for compatibility
-  // with future versions of .proto files.
-  std::string unknown_fields_;
-
-  std::bitset<5> _has_field_{};
-};
-
-}  // namespace perfetto
-}  // namespace protos
-}  // namespace gen
-
-#endif  // PERFETTO_PROTOS_PROTOS_PERFETTO_COMMON_TRACING_SERVICE_STATE_PROTO_CPP_H_
-// gen_amalgamated begin header: gen/protos/perfetto/common/track_event_descriptor.gen.h
-// DO NOT EDIT. Autogenerated by Perfetto cppgen_plugin
-#ifndef PERFETTO_PROTOS_PROTOS_PERFETTO_COMMON_TRACK_EVENT_DESCRIPTOR_PROTO_CPP_H_
-#define PERFETTO_PROTOS_PROTOS_PERFETTO_COMMON_TRACK_EVENT_DESCRIPTOR_PROTO_CPP_H_
-
-#include <stdint.h>
-#include <bitset>
-#include <vector>
-#include <string>
-#include <type_traits>
-
-// gen_amalgamated expanded: #include "perfetto/protozero/cpp_message_obj.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/copyable_ptr.h"
-// gen_amalgamated expanded: #include "perfetto/base/export.h"
-
-namespace perfetto {
-namespace protos {
-namespace gen {
-class TrackEventDescriptor;
-class TrackEventCategory;
-}  // namespace perfetto
-}  // namespace protos
-}  // namespace gen
-
-namespace protozero {
-class Message;
-}  // namespace protozero
-
-namespace perfetto {
-namespace protos {
-namespace gen {
-
-class PERFETTO_EXPORT TrackEventDescriptor : public ::protozero::CppMessageObj {
- public:
-  enum FieldNumbers {
-    kAvailableCategoriesFieldNumber = 1,
-  };
-
-  TrackEventDescriptor();
-  ~TrackEventDescriptor() override;
-  TrackEventDescriptor(TrackEventDescriptor&&) noexcept;
-  TrackEventDescriptor& operator=(TrackEventDescriptor&&);
-  TrackEventDescriptor(const TrackEventDescriptor&);
-  TrackEventDescriptor& operator=(const TrackEventDescriptor&);
-  bool operator==(const TrackEventDescriptor&) const;
-  bool operator!=(const TrackEventDescriptor& other) const { return !(*this == other); }
-
-  bool ParseFromArray(const void*, size_t) override;
-  std::string SerializeAsString() const override;
-  std::vector<uint8_t> SerializeAsArray() const override;
-  void Serialize(::protozero::Message*) const;
-
-  const std::vector<TrackEventCategory>& available_categories() const { return available_categories_; }
-  std::vector<TrackEventCategory>* mutable_available_categories() { return &available_categories_; }
-  int available_categories_size() const;
-  void clear_available_categories();
-  TrackEventCategory* add_available_categories();
-
- private:
-  std::vector<TrackEventCategory> available_categories_;
-
-  // Allows to preserve unknown protobuf fields for compatibility
-  // with future versions of .proto files.
-  std::string unknown_fields_;
-
-  std::bitset<2> _has_field_{};
-};
-
-
-class PERFETTO_EXPORT TrackEventCategory : public ::protozero::CppMessageObj {
- public:
-  enum FieldNumbers {
-    kNameFieldNumber = 1,
-    kDescriptionFieldNumber = 2,
-    kTagsFieldNumber = 3,
-  };
-
-  TrackEventCategory();
-  ~TrackEventCategory() override;
-  TrackEventCategory(TrackEventCategory&&) noexcept;
-  TrackEventCategory& operator=(TrackEventCategory&&);
-  TrackEventCategory(const TrackEventCategory&);
-  TrackEventCategory& operator=(const TrackEventCategory&);
-  bool operator==(const TrackEventCategory&) const;
-  bool operator!=(const TrackEventCategory& other) const { return !(*this == other); }
-
-  bool ParseFromArray(const void*, size_t) override;
-  std::string SerializeAsString() const override;
-  std::vector<uint8_t> SerializeAsArray() const override;
-  void Serialize(::protozero::Message*) const;
-
-  bool has_name() const { return _has_field_[1]; }
-  const std::string& name() const { return name_; }
-  void set_name(const std::string& value) { name_ = value; _has_field_.set(1); }
-
-  bool has_description() const { return _has_field_[2]; }
-  const std::string& description() const { return description_; }
-  void set_description(const std::string& value) { description_ = value; _has_field_.set(2); }
-
-  const std::vector<std::string>& tags() const { return tags_; }
-  std::vector<std::string>* mutable_tags() { return &tags_; }
-  int tags_size() const { return static_cast<int>(tags_.size()); }
-  void clear_tags() { tags_.clear(); }
-  void add_tags(std::string value) { tags_.emplace_back(value); }
-  std::string* add_tags() { tags_.emplace_back(); return &tags_.back(); }
-
- private:
-  std::string name_{};
-  std::string description_{};
-  std::vector<std::string> tags_;
-
-  // Allows to preserve unknown protobuf fields for compatibility
-  // with future versions of .proto files.
-  std::string unknown_fields_;
-
-  std::bitset<4> _has_field_{};
-};
-
-}  // namespace perfetto
-}  // namespace protos
-}  // namespace gen
-
-#endif  // PERFETTO_PROTOS_PROTOS_PERFETTO_COMMON_TRACK_EVENT_DESCRIPTOR_PROTO_CPP_H_
-// gen_amalgamated expanded: #include "perfetto/protozero/message.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/packed_repeated_fields.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/proto_decoder.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/scattered_heap_buffer.h"
-// DO NOT EDIT. Autogenerated by Perfetto cppgen_plugin
-#if defined(__GNUC__) || defined(__clang__)
-#pragma GCC diagnostic push
-#pragma GCC diagnostic ignored "-Wfloat-equal"
-#endif
-// gen_amalgamated expanded: #include "protos/perfetto/common/tracing_service_state.gen.h"
-// gen_amalgamated expanded: #include "protos/perfetto/common/data_source_descriptor.gen.h"
-// gen_amalgamated expanded: #include "protos/perfetto/common/track_event_descriptor.gen.h"
-// gen_amalgamated expanded: #include "protos/perfetto/common/gpu_counter_descriptor.gen.h"
-
-namespace perfetto {
-namespace protos {
-namespace gen {
-
-TracingServiceState::TracingServiceState() = default;
-TracingServiceState::~TracingServiceState() = default;
-TracingServiceState::TracingServiceState(const TracingServiceState&) = default;
-TracingServiceState& TracingServiceState::operator=(const TracingServiceState&) = default;
-TracingServiceState::TracingServiceState(TracingServiceState&&) noexcept = default;
-TracingServiceState& TracingServiceState::operator=(TracingServiceState&&) = default;
-
-bool TracingServiceState::operator==(const TracingServiceState& other) const {
-  return unknown_fields_ == other.unknown_fields_
-   && producers_ == other.producers_
-   && data_sources_ == other.data_sources_
-   && num_sessions_ == other.num_sessions_
-   && num_sessions_started_ == other.num_sessions_started_
-   && tracing_service_version_ == other.tracing_service_version_;
-}
-
-int TracingServiceState::producers_size() const { return static_cast<int>(producers_.size()); }
-void TracingServiceState::clear_producers() { producers_.clear(); }
-TracingServiceState_Producer* TracingServiceState::add_producers() { producers_.emplace_back(); return &producers_.back(); }
-int TracingServiceState::data_sources_size() const { return static_cast<int>(data_sources_.size()); }
-void TracingServiceState::clear_data_sources() { data_sources_.clear(); }
-TracingServiceState_DataSource* TracingServiceState::add_data_sources() { data_sources_.emplace_back(); return &data_sources_.back(); }
-bool TracingServiceState::ParseFromArray(const void* raw, size_t size) {
-  producers_.clear();
-  data_sources_.clear();
-  unknown_fields_.clear();
-  bool packed_error = false;
-
-  ::protozero::ProtoDecoder dec(raw, size);
-  for (auto field = dec.ReadField(); field.valid(); field = dec.ReadField()) {
-    if (field.id() < _has_field_.size()) {
-      _has_field_.set(field.id());
-    }
-    switch (field.id()) {
-      case 1 /* producers */:
-        producers_.emplace_back();
-        producers_.back().ParseFromArray(field.data(), field.size());
-        break;
-      case 2 /* data_sources */:
-        data_sources_.emplace_back();
-        data_sources_.back().ParseFromArray(field.data(), field.size());
-        break;
-      case 3 /* num_sessions */:
-        field.get(&num_sessions_);
-        break;
-      case 4 /* num_sessions_started */:
-        field.get(&num_sessions_started_);
-        break;
-      case 5 /* tracing_service_version */:
-        field.get(&tracing_service_version_);
-        break;
-      default:
-        field.SerializeAndAppendTo(&unknown_fields_);
-        break;
-    }
-  }
-  return !packed_error && !dec.bytes_left();
-}
-
-std::string TracingServiceState::SerializeAsString() const {
-  ::protozero::HeapBuffered<::protozero::Message> msg;
-  Serialize(msg.get());
-  return msg.SerializeAsString();
-}
-
-std::vector<uint8_t> TracingServiceState::SerializeAsArray() const {
-  ::protozero::HeapBuffered<::protozero::Message> msg;
-  Serialize(msg.get());
-  return msg.SerializeAsArray();
-}
-
-void TracingServiceState::Serialize(::protozero::Message* msg) const {
-  // Field 1: producers
-  for (auto& it : producers_) {
-    it.Serialize(msg->BeginNestedMessage<::protozero::Message>(1));
-  }
-
-  // Field 2: data_sources
-  for (auto& it : data_sources_) {
-    it.Serialize(msg->BeginNestedMessage<::protozero::Message>(2));
-  }
-
-  // Field 3: num_sessions
-  if (_has_field_[3]) {
-    msg->AppendVarInt(3, num_sessions_);
-  }
-
-  // Field 4: num_sessions_started
-  if (_has_field_[4]) {
-    msg->AppendVarInt(4, num_sessions_started_);
-  }
-
-  // Field 5: tracing_service_version
-  if (_has_field_[5]) {
-    msg->AppendString(5, tracing_service_version_);
-  }
-
-  msg->AppendRawProtoBytes(unknown_fields_.data(), unknown_fields_.size());
-}
-
-
-TracingServiceState_DataSource::TracingServiceState_DataSource() = default;
-TracingServiceState_DataSource::~TracingServiceState_DataSource() = default;
-TracingServiceState_DataSource::TracingServiceState_DataSource(const TracingServiceState_DataSource&) = default;
-TracingServiceState_DataSource& TracingServiceState_DataSource::operator=(const TracingServiceState_DataSource&) = default;
-TracingServiceState_DataSource::TracingServiceState_DataSource(TracingServiceState_DataSource&&) noexcept = default;
-TracingServiceState_DataSource& TracingServiceState_DataSource::operator=(TracingServiceState_DataSource&&) = default;
-
-bool TracingServiceState_DataSource::operator==(const TracingServiceState_DataSource& other) const {
-  return unknown_fields_ == other.unknown_fields_
-   && ds_descriptor_ == other.ds_descriptor_
-   && producer_id_ == other.producer_id_;
-}
-
-bool TracingServiceState_DataSource::ParseFromArray(const void* raw, size_t size) {
-  unknown_fields_.clear();
-  bool packed_error = false;
-
-  ::protozero::ProtoDecoder dec(raw, size);
-  for (auto field = dec.ReadField(); field.valid(); field = dec.ReadField()) {
-    if (field.id() < _has_field_.size()) {
-      _has_field_.set(field.id());
-    }
-    switch (field.id()) {
-      case 1 /* ds_descriptor */:
-        (*ds_descriptor_).ParseFromArray(field.data(), field.size());
-        break;
-      case 2 /* producer_id */:
-        field.get(&producer_id_);
-        break;
-      default:
-        field.SerializeAndAppendTo(&unknown_fields_);
-        break;
-    }
-  }
-  return !packed_error && !dec.bytes_left();
-}
-
-std::string TracingServiceState_DataSource::SerializeAsString() const {
-  ::protozero::HeapBuffered<::protozero::Message> msg;
-  Serialize(msg.get());
-  return msg.SerializeAsString();
-}
-
-std::vector<uint8_t> TracingServiceState_DataSource::SerializeAsArray() const {
-  ::protozero::HeapBuffered<::protozero::Message> msg;
-  Serialize(msg.get());
-  return msg.SerializeAsArray();
-}
-
-void TracingServiceState_DataSource::Serialize(::protozero::Message* msg) const {
-  // Field 1: ds_descriptor
-  if (_has_field_[1]) {
-    (*ds_descriptor_).Serialize(msg->BeginNestedMessage<::protozero::Message>(1));
-  }
-
-  // Field 2: producer_id
-  if (_has_field_[2]) {
-    msg->AppendVarInt(2, producer_id_);
-  }
-
-  msg->AppendRawProtoBytes(unknown_fields_.data(), unknown_fields_.size());
-}
-
-
-TracingServiceState_Producer::TracingServiceState_Producer() = default;
-TracingServiceState_Producer::~TracingServiceState_Producer() = default;
-TracingServiceState_Producer::TracingServiceState_Producer(const TracingServiceState_Producer&) = default;
-TracingServiceState_Producer& TracingServiceState_Producer::operator=(const TracingServiceState_Producer&) = default;
-TracingServiceState_Producer::TracingServiceState_Producer(TracingServiceState_Producer&&) noexcept = default;
-TracingServiceState_Producer& TracingServiceState_Producer::operator=(TracingServiceState_Producer&&) = default;
-
-bool TracingServiceState_Producer::operator==(const TracingServiceState_Producer& other) const {
-  return unknown_fields_ == other.unknown_fields_
-   && id_ == other.id_
-   && name_ == other.name_
-   && uid_ == other.uid_
-   && sdk_version_ == other.sdk_version_;
-}
-
-bool TracingServiceState_Producer::ParseFromArray(const void* raw, size_t size) {
-  unknown_fields_.clear();
-  bool packed_error = false;
-
-  ::protozero::ProtoDecoder dec(raw, size);
-  for (auto field = dec.ReadField(); field.valid(); field = dec.ReadField()) {
-    if (field.id() < _has_field_.size()) {
-      _has_field_.set(field.id());
-    }
-    switch (field.id()) {
-      case 1 /* id */:
-        field.get(&id_);
-        break;
-      case 2 /* name */:
-        field.get(&name_);
-        break;
-      case 3 /* uid */:
-        field.get(&uid_);
-        break;
-      case 4 /* sdk_version */:
-        field.get(&sdk_version_);
-        break;
-      default:
-        field.SerializeAndAppendTo(&unknown_fields_);
-        break;
-    }
-  }
-  return !packed_error && !dec.bytes_left();
-}
-
-std::string TracingServiceState_Producer::SerializeAsString() const {
-  ::protozero::HeapBuffered<::protozero::Message> msg;
-  Serialize(msg.get());
-  return msg.SerializeAsString();
-}
-
-std::vector<uint8_t> TracingServiceState_Producer::SerializeAsArray() const {
-  ::protozero::HeapBuffered<::protozero::Message> msg;
-  Serialize(msg.get());
-  return msg.SerializeAsArray();
-}
-
-void TracingServiceState_Producer::Serialize(::protozero::Message* msg) const {
-  // Field 1: id
-  if (_has_field_[1]) {
-    msg->AppendVarInt(1, id_);
-  }
-
-  // Field 2: name
-  if (_has_field_[2]) {
-    msg->AppendString(2, name_);
-  }
-
-  // Field 3: uid
-  if (_has_field_[3]) {
-    msg->AppendVarInt(3, uid_);
-  }
-
-  // Field 4: sdk_version
-  if (_has_field_[4]) {
-    msg->AppendString(4, sdk_version_);
-  }
-
-  msg->AppendRawProtoBytes(unknown_fields_.data(), unknown_fields_.size());
-}
-
-}  // namespace perfetto
-}  // namespace protos
-}  // namespace gen
-#if defined(__GNUC__) || defined(__clang__)
-#pragma GCC diagnostic pop
-#endif
-// gen_amalgamated begin source: gen/protos/perfetto/common/track_event_descriptor.gen.cc
-// gen_amalgamated expanded: #include "perfetto/protozero/message.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/packed_repeated_fields.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/proto_decoder.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/scattered_heap_buffer.h"
-// DO NOT EDIT. Autogenerated by Perfetto cppgen_plugin
-#if defined(__GNUC__) || defined(__clang__)
-#pragma GCC diagnostic push
-#pragma GCC diagnostic ignored "-Wfloat-equal"
-#endif
-// gen_amalgamated expanded: #include "protos/perfetto/common/track_event_descriptor.gen.h"
-
-namespace perfetto {
-namespace protos {
-namespace gen {
-
-TrackEventDescriptor::TrackEventDescriptor() = default;
-TrackEventDescriptor::~TrackEventDescriptor() = default;
-TrackEventDescriptor::TrackEventDescriptor(const TrackEventDescriptor&) = default;
-TrackEventDescriptor& TrackEventDescriptor::operator=(const TrackEventDescriptor&) = default;
-TrackEventDescriptor::TrackEventDescriptor(TrackEventDescriptor&&) noexcept = default;
-TrackEventDescriptor& TrackEventDescriptor::operator=(TrackEventDescriptor&&) = default;
-
-bool TrackEventDescriptor::operator==(const TrackEventDescriptor& other) const {
-  return unknown_fields_ == other.unknown_fields_
-   && available_categories_ == other.available_categories_;
-}
-
-int TrackEventDescriptor::available_categories_size() const { return static_cast<int>(available_categories_.size()); }
-void TrackEventDescriptor::clear_available_categories() { available_categories_.clear(); }
-TrackEventCategory* TrackEventDescriptor::add_available_categories() { available_categories_.emplace_back(); return &available_categories_.back(); }
-bool TrackEventDescriptor::ParseFromArray(const void* raw, size_t size) {
-  available_categories_.clear();
-  unknown_fields_.clear();
-  bool packed_error = false;
-
-  ::protozero::ProtoDecoder dec(raw, size);
-  for (auto field = dec.ReadField(); field.valid(); field = dec.ReadField()) {
-    if (field.id() < _has_field_.size()) {
-      _has_field_.set(field.id());
-    }
-    switch (field.id()) {
-      case 1 /* available_categories */:
-        available_categories_.emplace_back();
-        available_categories_.back().ParseFromArray(field.data(), field.size());
-        break;
-      default:
-        field.SerializeAndAppendTo(&unknown_fields_);
-        break;
-    }
-  }
-  return !packed_error && !dec.bytes_left();
-}
-
-std::string TrackEventDescriptor::SerializeAsString() const {
-  ::protozero::HeapBuffered<::protozero::Message> msg;
-  Serialize(msg.get());
-  return msg.SerializeAsString();
-}
-
-std::vector<uint8_t> TrackEventDescriptor::SerializeAsArray() const {
-  ::protozero::HeapBuffered<::protozero::Message> msg;
-  Serialize(msg.get());
-  return msg.SerializeAsArray();
-}
-
-void TrackEventDescriptor::Serialize(::protozero::Message* msg) const {
-  // Field 1: available_categories
-  for (auto& it : available_categories_) {
-    it.Serialize(msg->BeginNestedMessage<::protozero::Message>(1));
-  }
-
-  msg->AppendRawProtoBytes(unknown_fields_.data(), unknown_fields_.size());
-}
-
-
-TrackEventCategory::TrackEventCategory() = default;
-TrackEventCategory::~TrackEventCategory() = default;
-TrackEventCategory::TrackEventCategory(const TrackEventCategory&) = default;
-TrackEventCategory& TrackEventCategory::operator=(const TrackEventCategory&) = default;
-TrackEventCategory::TrackEventCategory(TrackEventCategory&&) noexcept = default;
-TrackEventCategory& TrackEventCategory::operator=(TrackEventCategory&&) = default;
-
-bool TrackEventCategory::operator==(const TrackEventCategory& other) const {
-  return unknown_fields_ == other.unknown_fields_
-   && name_ == other.name_
-   && description_ == other.description_
-   && tags_ == other.tags_;
-}
-
-bool TrackEventCategory::ParseFromArray(const void* raw, size_t size) {
-  tags_.clear();
-  unknown_fields_.clear();
-  bool packed_error = false;
-
-  ::protozero::ProtoDecoder dec(raw, size);
-  for (auto field = dec.ReadField(); field.valid(); field = dec.ReadField()) {
-    if (field.id() < _has_field_.size()) {
-      _has_field_.set(field.id());
-    }
-    switch (field.id()) {
-      case 1 /* name */:
-        field.get(&name_);
-        break;
-      case 2 /* description */:
-        field.get(&description_);
-        break;
-      case 3 /* tags */:
-        tags_.emplace_back();
-        field.get(&tags_.back());
-        break;
-      default:
-        field.SerializeAndAppendTo(&unknown_fields_);
-        break;
-    }
-  }
-  return !packed_error && !dec.bytes_left();
-}
-
-std::string TrackEventCategory::SerializeAsString() const {
-  ::protozero::HeapBuffered<::protozero::Message> msg;
-  Serialize(msg.get());
-  return msg.SerializeAsString();
-}
-
-std::vector<uint8_t> TrackEventCategory::SerializeAsArray() const {
-  ::protozero::HeapBuffered<::protozero::Message> msg;
-  Serialize(msg.get());
-  return msg.SerializeAsArray();
-}
-
-void TrackEventCategory::Serialize(::protozero::Message* msg) const {
-  // Field 1: name
-  if (_has_field_[1]) {
-    msg->AppendString(1, name_);
-  }
-
-  // Field 2: description
-  if (_has_field_[2]) {
-    msg->AppendString(2, description_);
-  }
-
-  // Field 3: tags
-  for (auto& it : tags_) {
-    msg->AppendString(3, it);
-  }
-
-  msg->AppendRawProtoBytes(unknown_fields_.data(), unknown_fields_.size());
-}
-
-}  // namespace perfetto
-}  // namespace protos
-}  // namespace gen
-#if defined(__GNUC__) || defined(__clang__)
-#pragma GCC diagnostic pop
-#endif
-// gen_amalgamated begin source: gen/protos/perfetto/config/android/android_log_config.gen.cc
-// gen_amalgamated begin header: gen/protos/perfetto/config/android/android_log_config.gen.h
-// DO NOT EDIT. Autogenerated by Perfetto cppgen_plugin
-#ifndef PERFETTO_PROTOS_PROTOS_PERFETTO_CONFIG_ANDROID_ANDROID_LOG_CONFIG_PROTO_CPP_H_
-#define PERFETTO_PROTOS_PROTOS_PERFETTO_CONFIG_ANDROID_ANDROID_LOG_CONFIG_PROTO_CPP_H_
-
-#include <stdint.h>
-#include <bitset>
-#include <vector>
-#include <string>
-#include <type_traits>
-
-// gen_amalgamated expanded: #include "perfetto/protozero/cpp_message_obj.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/copyable_ptr.h"
-// gen_amalgamated expanded: #include "perfetto/base/export.h"
-
-namespace perfetto {
-namespace protos {
-namespace gen {
-class AndroidLogConfig;
-enum AndroidLogId : int;
-enum AndroidLogPriority : int;
-}  // namespace perfetto
-}  // namespace protos
-}  // namespace gen
-
-namespace protozero {
-class Message;
-}  // namespace protozero
-
-namespace perfetto {
-namespace protos {
-namespace gen {
-
-class PERFETTO_EXPORT AndroidLogConfig : public ::protozero::CppMessageObj {
- public:
-  enum FieldNumbers {
-    kLogIdsFieldNumber = 1,
-    kMinPrioFieldNumber = 3,
-    kFilterTagsFieldNumber = 4,
-  };
-
-  AndroidLogConfig();
-  ~AndroidLogConfig() override;
-  AndroidLogConfig(AndroidLogConfig&&) noexcept;
-  AndroidLogConfig& operator=(AndroidLogConfig&&);
-  AndroidLogConfig(const AndroidLogConfig&);
-  AndroidLogConfig& operator=(const AndroidLogConfig&);
-  bool operator==(const AndroidLogConfig&) const;
-  bool operator!=(const AndroidLogConfig& other) const { return !(*this == other); }
-
-  bool ParseFromArray(const void*, size_t) override;
-  std::string SerializeAsString() const override;
-  std::vector<uint8_t> SerializeAsArray() const override;
-  void Serialize(::protozero::Message*) const;
-
-  const std::vector<AndroidLogId>& log_ids() const { return log_ids_; }
-  std::vector<AndroidLogId>* mutable_log_ids() { return &log_ids_; }
-  int log_ids_size() const { return static_cast<int>(log_ids_.size()); }
-  void clear_log_ids() { log_ids_.clear(); }
-  void add_log_ids(AndroidLogId value) { log_ids_.emplace_back(value); }
-  AndroidLogId* add_log_ids() { log_ids_.emplace_back(); return &log_ids_.back(); }
-
-  bool has_min_prio() const { return _has_field_[3]; }
-  AndroidLogPriority min_prio() const { return min_prio_; }
-  void set_min_prio(AndroidLogPriority value) { min_prio_ = value; _has_field_.set(3); }
-
-  const std::vector<std::string>& filter_tags() const { return filter_tags_; }
-  std::vector<std::string>* mutable_filter_tags() { return &filter_tags_; }
-  int filter_tags_size() const { return static_cast<int>(filter_tags_.size()); }
-  void clear_filter_tags() { filter_tags_.clear(); }
-  void add_filter_tags(std::string value) { filter_tags_.emplace_back(value); }
-  std::string* add_filter_tags() { filter_tags_.emplace_back(); return &filter_tags_.back(); }
-
- private:
-  std::vector<AndroidLogId> log_ids_;
-  AndroidLogPriority min_prio_{};
-  std::vector<std::string> filter_tags_;
-
-  // Allows to preserve unknown protobuf fields for compatibility
-  // with future versions of .proto files.
-  std::string unknown_fields_;
-
-  std::bitset<5> _has_field_{};
-};
-
-}  // namespace perfetto
-}  // namespace protos
-}  // namespace gen
-
-#endif  // PERFETTO_PROTOS_PROTOS_PERFETTO_CONFIG_ANDROID_ANDROID_LOG_CONFIG_PROTO_CPP_H_
-// gen_amalgamated expanded: #include "perfetto/protozero/message.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/packed_repeated_fields.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/proto_decoder.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/scattered_heap_buffer.h"
-// DO NOT EDIT. Autogenerated by Perfetto cppgen_plugin
-#if defined(__GNUC__) || defined(__clang__)
-#pragma GCC diagnostic push
-#pragma GCC diagnostic ignored "-Wfloat-equal"
-#endif
-// gen_amalgamated expanded: #include "protos/perfetto/config/android/android_log_config.gen.h"
-// gen_amalgamated expanded: #include "protos/perfetto/common/android_log_constants.gen.h"
-
-namespace perfetto {
-namespace protos {
-namespace gen {
-
-AndroidLogConfig::AndroidLogConfig() = default;
-AndroidLogConfig::~AndroidLogConfig() = default;
-AndroidLogConfig::AndroidLogConfig(const AndroidLogConfig&) = default;
-AndroidLogConfig& AndroidLogConfig::operator=(const AndroidLogConfig&) = default;
-AndroidLogConfig::AndroidLogConfig(AndroidLogConfig&&) noexcept = default;
-AndroidLogConfig& AndroidLogConfig::operator=(AndroidLogConfig&&) = default;
-
-bool AndroidLogConfig::operator==(const AndroidLogConfig& other) const {
-  return unknown_fields_ == other.unknown_fields_
-   && log_ids_ == other.log_ids_
-   && min_prio_ == other.min_prio_
-   && filter_tags_ == other.filter_tags_;
-}
-
-bool AndroidLogConfig::ParseFromArray(const void* raw, size_t size) {
-  log_ids_.clear();
-  filter_tags_.clear();
-  unknown_fields_.clear();
-  bool packed_error = false;
-
-  ::protozero::ProtoDecoder dec(raw, size);
-  for (auto field = dec.ReadField(); field.valid(); field = dec.ReadField()) {
-    if (field.id() < _has_field_.size()) {
-      _has_field_.set(field.id());
-    }
-    switch (field.id()) {
-      case 1 /* log_ids */:
-        log_ids_.emplace_back();
-        field.get(&log_ids_.back());
-        break;
-      case 3 /* min_prio */:
-        field.get(&min_prio_);
-        break;
-      case 4 /* filter_tags */:
-        filter_tags_.emplace_back();
-        field.get(&filter_tags_.back());
-        break;
-      default:
-        field.SerializeAndAppendTo(&unknown_fields_);
-        break;
-    }
-  }
-  return !packed_error && !dec.bytes_left();
-}
-
-std::string AndroidLogConfig::SerializeAsString() const {
-  ::protozero::HeapBuffered<::protozero::Message> msg;
-  Serialize(msg.get());
-  return msg.SerializeAsString();
-}
-
-std::vector<uint8_t> AndroidLogConfig::SerializeAsArray() const {
-  ::protozero::HeapBuffered<::protozero::Message> msg;
-  Serialize(msg.get());
-  return msg.SerializeAsArray();
-}
-
-void AndroidLogConfig::Serialize(::protozero::Message* msg) const {
-  // Field 1: log_ids
-  for (auto& it : log_ids_) {
-    msg->AppendVarInt(1, it);
-  }
-
-  // Field 3: min_prio
-  if (_has_field_[3]) {
-    msg->AppendVarInt(3, min_prio_);
-  }
-
-  // Field 4: filter_tags
-  for (auto& it : filter_tags_) {
-    msg->AppendString(4, it);
-  }
-
-  msg->AppendRawProtoBytes(unknown_fields_.data(), unknown_fields_.size());
-}
-
-}  // namespace perfetto
-}  // namespace protos
-}  // namespace gen
-#if defined(__GNUC__) || defined(__clang__)
-#pragma GCC diagnostic pop
-#endif
-// gen_amalgamated begin source: gen/protos/perfetto/config/android/android_polled_state_config.gen.cc
-// gen_amalgamated begin header: gen/protos/perfetto/config/android/android_polled_state_config.gen.h
-// DO NOT EDIT. Autogenerated by Perfetto cppgen_plugin
-#ifndef PERFETTO_PROTOS_PROTOS_PERFETTO_CONFIG_ANDROID_ANDROID_POLLED_STATE_CONFIG_PROTO_CPP_H_
-#define PERFETTO_PROTOS_PROTOS_PERFETTO_CONFIG_ANDROID_ANDROID_POLLED_STATE_CONFIG_PROTO_CPP_H_
-
-#include <stdint.h>
-#include <bitset>
-#include <vector>
-#include <string>
-#include <type_traits>
-
-// gen_amalgamated expanded: #include "perfetto/protozero/cpp_message_obj.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/copyable_ptr.h"
-// gen_amalgamated expanded: #include "perfetto/base/export.h"
-
-namespace perfetto {
-namespace protos {
-namespace gen {
-class AndroidPolledStateConfig;
-}  // namespace perfetto
-}  // namespace protos
-}  // namespace gen
-
-namespace protozero {
-class Message;
-}  // namespace protozero
-
-namespace perfetto {
-namespace protos {
-namespace gen {
-
-class PERFETTO_EXPORT AndroidPolledStateConfig : public ::protozero::CppMessageObj {
- public:
-  enum FieldNumbers {
-    kPollMsFieldNumber = 1,
-  };
-
-  AndroidPolledStateConfig();
-  ~AndroidPolledStateConfig() override;
-  AndroidPolledStateConfig(AndroidPolledStateConfig&&) noexcept;
-  AndroidPolledStateConfig& operator=(AndroidPolledStateConfig&&);
-  AndroidPolledStateConfig(const AndroidPolledStateConfig&);
-  AndroidPolledStateConfig& operator=(const AndroidPolledStateConfig&);
-  bool operator==(const AndroidPolledStateConfig&) const;
-  bool operator!=(const AndroidPolledStateConfig& other) const { return !(*this == other); }
-
-  bool ParseFromArray(const void*, size_t) override;
-  std::string SerializeAsString() const override;
-  std::vector<uint8_t> SerializeAsArray() const override;
-  void Serialize(::protozero::Message*) const;
-
-  bool has_poll_ms() const { return _has_field_[1]; }
-  uint32_t poll_ms() const { return poll_ms_; }
-  void set_poll_ms(uint32_t value) { poll_ms_ = value; _has_field_.set(1); }
-
- private:
-  uint32_t poll_ms_{};
-
-  // Allows to preserve unknown protobuf fields for compatibility
-  // with future versions of .proto files.
-  std::string unknown_fields_;
-
-  std::bitset<2> _has_field_{};
-};
-
-}  // namespace perfetto
-}  // namespace protos
-}  // namespace gen
-
-#endif  // PERFETTO_PROTOS_PROTOS_PERFETTO_CONFIG_ANDROID_ANDROID_POLLED_STATE_CONFIG_PROTO_CPP_H_
-// gen_amalgamated expanded: #include "perfetto/protozero/message.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/packed_repeated_fields.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/proto_decoder.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/scattered_heap_buffer.h"
-// DO NOT EDIT. Autogenerated by Perfetto cppgen_plugin
-#if defined(__GNUC__) || defined(__clang__)
-#pragma GCC diagnostic push
-#pragma GCC diagnostic ignored "-Wfloat-equal"
-#endif
-// gen_amalgamated expanded: #include "protos/perfetto/config/android/android_polled_state_config.gen.h"
-
-namespace perfetto {
-namespace protos {
-namespace gen {
-
-AndroidPolledStateConfig::AndroidPolledStateConfig() = default;
-AndroidPolledStateConfig::~AndroidPolledStateConfig() = default;
-AndroidPolledStateConfig::AndroidPolledStateConfig(const AndroidPolledStateConfig&) = default;
-AndroidPolledStateConfig& AndroidPolledStateConfig::operator=(const AndroidPolledStateConfig&) = default;
-AndroidPolledStateConfig::AndroidPolledStateConfig(AndroidPolledStateConfig&&) noexcept = default;
-AndroidPolledStateConfig& AndroidPolledStateConfig::operator=(AndroidPolledStateConfig&&) = default;
-
-bool AndroidPolledStateConfig::operator==(const AndroidPolledStateConfig& other) const {
-  return unknown_fields_ == other.unknown_fields_
-   && poll_ms_ == other.poll_ms_;
-}
-
-bool AndroidPolledStateConfig::ParseFromArray(const void* raw, size_t size) {
-  unknown_fields_.clear();
-  bool packed_error = false;
-
-  ::protozero::ProtoDecoder dec(raw, size);
-  for (auto field = dec.ReadField(); field.valid(); field = dec.ReadField()) {
-    if (field.id() < _has_field_.size()) {
-      _has_field_.set(field.id());
-    }
-    switch (field.id()) {
-      case 1 /* poll_ms */:
-        field.get(&poll_ms_);
-        break;
-      default:
-        field.SerializeAndAppendTo(&unknown_fields_);
-        break;
-    }
-  }
-  return !packed_error && !dec.bytes_left();
-}
-
-std::string AndroidPolledStateConfig::SerializeAsString() const {
-  ::protozero::HeapBuffered<::protozero::Message> msg;
-  Serialize(msg.get());
-  return msg.SerializeAsString();
-}
-
-std::vector<uint8_t> AndroidPolledStateConfig::SerializeAsArray() const {
-  ::protozero::HeapBuffered<::protozero::Message> msg;
-  Serialize(msg.get());
-  return msg.SerializeAsArray();
-}
-
-void AndroidPolledStateConfig::Serialize(::protozero::Message* msg) const {
-  // Field 1: poll_ms
-  if (_has_field_[1]) {
-    msg->AppendVarInt(1, poll_ms_);
-  }
-
-  msg->AppendRawProtoBytes(unknown_fields_.data(), unknown_fields_.size());
-}
-
-}  // namespace perfetto
-}  // namespace protos
-}  // namespace gen
-#if defined(__GNUC__) || defined(__clang__)
-#pragma GCC diagnostic pop
-#endif
-// gen_amalgamated begin source: gen/protos/perfetto/config/android/packages_list_config.gen.cc
-// gen_amalgamated begin header: gen/protos/perfetto/config/android/packages_list_config.gen.h
-// DO NOT EDIT. Autogenerated by Perfetto cppgen_plugin
-#ifndef PERFETTO_PROTOS_PROTOS_PERFETTO_CONFIG_ANDROID_PACKAGES_LIST_CONFIG_PROTO_CPP_H_
-#define PERFETTO_PROTOS_PROTOS_PERFETTO_CONFIG_ANDROID_PACKAGES_LIST_CONFIG_PROTO_CPP_H_
-
-#include <stdint.h>
-#include <bitset>
-#include <vector>
-#include <string>
-#include <type_traits>
-
-// gen_amalgamated expanded: #include "perfetto/protozero/cpp_message_obj.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/copyable_ptr.h"
-// gen_amalgamated expanded: #include "perfetto/base/export.h"
-
-namespace perfetto {
-namespace protos {
-namespace gen {
-class PackagesListConfig;
-}  // namespace perfetto
-}  // namespace protos
-}  // namespace gen
-
-namespace protozero {
-class Message;
-}  // namespace protozero
-
-namespace perfetto {
-namespace protos {
-namespace gen {
-
-class PERFETTO_EXPORT PackagesListConfig : public ::protozero::CppMessageObj {
- public:
-  enum FieldNumbers {
-    kPackageNameFilterFieldNumber = 1,
-  };
-
-  PackagesListConfig();
-  ~PackagesListConfig() override;
-  PackagesListConfig(PackagesListConfig&&) noexcept;
-  PackagesListConfig& operator=(PackagesListConfig&&);
-  PackagesListConfig(const PackagesListConfig&);
-  PackagesListConfig& operator=(const PackagesListConfig&);
-  bool operator==(const PackagesListConfig&) const;
-  bool operator!=(const PackagesListConfig& other) const { return !(*this == other); }
-
-  bool ParseFromArray(const void*, size_t) override;
-  std::string SerializeAsString() const override;
-  std::vector<uint8_t> SerializeAsArray() const override;
-  void Serialize(::protozero::Message*) const;
-
-  const std::vector<std::string>& package_name_filter() const { return package_name_filter_; }
-  std::vector<std::string>* mutable_package_name_filter() { return &package_name_filter_; }
-  int package_name_filter_size() const { return static_cast<int>(package_name_filter_.size()); }
-  void clear_package_name_filter() { package_name_filter_.clear(); }
-  void add_package_name_filter(std::string value) { package_name_filter_.emplace_back(value); }
-  std::string* add_package_name_filter() { package_name_filter_.emplace_back(); return &package_name_filter_.back(); }
-
- private:
-  std::vector<std::string> package_name_filter_;
-
-  // Allows to preserve unknown protobuf fields for compatibility
-  // with future versions of .proto files.
-  std::string unknown_fields_;
-
-  std::bitset<2> _has_field_{};
-};
-
-}  // namespace perfetto
-}  // namespace protos
-}  // namespace gen
-
-#endif  // PERFETTO_PROTOS_PROTOS_PERFETTO_CONFIG_ANDROID_PACKAGES_LIST_CONFIG_PROTO_CPP_H_
-// gen_amalgamated expanded: #include "perfetto/protozero/message.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/packed_repeated_fields.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/proto_decoder.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/scattered_heap_buffer.h"
-// DO NOT EDIT. Autogenerated by Perfetto cppgen_plugin
-#if defined(__GNUC__) || defined(__clang__)
-#pragma GCC diagnostic push
-#pragma GCC diagnostic ignored "-Wfloat-equal"
-#endif
-// gen_amalgamated expanded: #include "protos/perfetto/config/android/packages_list_config.gen.h"
-
-namespace perfetto {
-namespace protos {
-namespace gen {
-
-PackagesListConfig::PackagesListConfig() = default;
-PackagesListConfig::~PackagesListConfig() = default;
-PackagesListConfig::PackagesListConfig(const PackagesListConfig&) = default;
-PackagesListConfig& PackagesListConfig::operator=(const PackagesListConfig&) = default;
-PackagesListConfig::PackagesListConfig(PackagesListConfig&&) noexcept = default;
-PackagesListConfig& PackagesListConfig::operator=(PackagesListConfig&&) = default;
-
-bool PackagesListConfig::operator==(const PackagesListConfig& other) const {
-  return unknown_fields_ == other.unknown_fields_
-   && package_name_filter_ == other.package_name_filter_;
-}
-
-bool PackagesListConfig::ParseFromArray(const void* raw, size_t size) {
-  package_name_filter_.clear();
-  unknown_fields_.clear();
-  bool packed_error = false;
-
-  ::protozero::ProtoDecoder dec(raw, size);
-  for (auto field = dec.ReadField(); field.valid(); field = dec.ReadField()) {
-    if (field.id() < _has_field_.size()) {
-      _has_field_.set(field.id());
-    }
-    switch (field.id()) {
-      case 1 /* package_name_filter */:
-        package_name_filter_.emplace_back();
-        field.get(&package_name_filter_.back());
-        break;
-      default:
-        field.SerializeAndAppendTo(&unknown_fields_);
-        break;
-    }
-  }
-  return !packed_error && !dec.bytes_left();
-}
-
-std::string PackagesListConfig::SerializeAsString() const {
-  ::protozero::HeapBuffered<::protozero::Message> msg;
-  Serialize(msg.get());
-  return msg.SerializeAsString();
-}
-
-std::vector<uint8_t> PackagesListConfig::SerializeAsArray() const {
-  ::protozero::HeapBuffered<::protozero::Message> msg;
-  Serialize(msg.get());
-  return msg.SerializeAsArray();
-}
-
-void PackagesListConfig::Serialize(::protozero::Message* msg) const {
-  // Field 1: package_name_filter
-  for (auto& it : package_name_filter_) {
-    msg->AppendString(1, it);
-  }
-
-  msg->AppendRawProtoBytes(unknown_fields_.data(), unknown_fields_.size());
-}
-
-}  // namespace perfetto
-}  // namespace protos
-}  // namespace gen
-#if defined(__GNUC__) || defined(__clang__)
-#pragma GCC diagnostic pop
-#endif
-// gen_amalgamated begin source: gen/protos/perfetto/config/ftrace/ftrace_config.gen.cc
-// gen_amalgamated begin header: gen/protos/perfetto/config/ftrace/ftrace_config.gen.h
-// DO NOT EDIT. Autogenerated by Perfetto cppgen_plugin
-#ifndef PERFETTO_PROTOS_PROTOS_PERFETTO_CONFIG_FTRACE_FTRACE_CONFIG_PROTO_CPP_H_
-#define PERFETTO_PROTOS_PROTOS_PERFETTO_CONFIG_FTRACE_FTRACE_CONFIG_PROTO_CPP_H_
-
-#include <stdint.h>
-#include <bitset>
-#include <vector>
-#include <string>
-#include <type_traits>
-
-// gen_amalgamated expanded: #include "perfetto/protozero/cpp_message_obj.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/copyable_ptr.h"
-// gen_amalgamated expanded: #include "perfetto/base/export.h"
-
-namespace perfetto {
-namespace protos {
-namespace gen {
-class FtraceConfig;
-class FtraceConfig_CompactSchedConfig;
-}  // namespace perfetto
-}  // namespace protos
-}  // namespace gen
-
-namespace protozero {
-class Message;
-}  // namespace protozero
-
-namespace perfetto {
-namespace protos {
-namespace gen {
-
-class PERFETTO_EXPORT FtraceConfig : public ::protozero::CppMessageObj {
- public:
-  using CompactSchedConfig = FtraceConfig_CompactSchedConfig;
-  enum FieldNumbers {
-    kFtraceEventsFieldNumber = 1,
-    kAtraceCategoriesFieldNumber = 2,
-    kAtraceAppsFieldNumber = 3,
-    kBufferSizeKbFieldNumber = 10,
-    kDrainPeriodMsFieldNumber = 11,
-    kCompactSchedFieldNumber = 12,
-    kSymbolizeKsymsFieldNumber = 13,
-    kInitializeKsymsSynchronouslyForTestingFieldNumber = 14,
-  };
-
-  FtraceConfig();
-  ~FtraceConfig() override;
-  FtraceConfig(FtraceConfig&&) noexcept;
-  FtraceConfig& operator=(FtraceConfig&&);
-  FtraceConfig(const FtraceConfig&);
-  FtraceConfig& operator=(const FtraceConfig&);
-  bool operator==(const FtraceConfig&) const;
-  bool operator!=(const FtraceConfig& other) const { return !(*this == other); }
-
-  bool ParseFromArray(const void*, size_t) override;
-  std::string SerializeAsString() const override;
-  std::vector<uint8_t> SerializeAsArray() const override;
-  void Serialize(::protozero::Message*) const;
-
-  const std::vector<std::string>& ftrace_events() const { return ftrace_events_; }
-  std::vector<std::string>* mutable_ftrace_events() { return &ftrace_events_; }
-  int ftrace_events_size() const { return static_cast<int>(ftrace_events_.size()); }
-  void clear_ftrace_events() { ftrace_events_.clear(); }
-  void add_ftrace_events(std::string value) { ftrace_events_.emplace_back(value); }
-  std::string* add_ftrace_events() { ftrace_events_.emplace_back(); return &ftrace_events_.back(); }
-
-  const std::vector<std::string>& atrace_categories() const { return atrace_categories_; }
-  std::vector<std::string>* mutable_atrace_categories() { return &atrace_categories_; }
-  int atrace_categories_size() const { return static_cast<int>(atrace_categories_.size()); }
-  void clear_atrace_categories() { atrace_categories_.clear(); }
-  void add_atrace_categories(std::string value) { atrace_categories_.emplace_back(value); }
-  std::string* add_atrace_categories() { atrace_categories_.emplace_back(); return &atrace_categories_.back(); }
-
-  const std::vector<std::string>& atrace_apps() const { return atrace_apps_; }
-  std::vector<std::string>* mutable_atrace_apps() { return &atrace_apps_; }
-  int atrace_apps_size() const { return static_cast<int>(atrace_apps_.size()); }
-  void clear_atrace_apps() { atrace_apps_.clear(); }
-  void add_atrace_apps(std::string value) { atrace_apps_.emplace_back(value); }
-  std::string* add_atrace_apps() { atrace_apps_.emplace_back(); return &atrace_apps_.back(); }
-
-  bool has_buffer_size_kb() const { return _has_field_[10]; }
-  uint32_t buffer_size_kb() const { return buffer_size_kb_; }
-  void set_buffer_size_kb(uint32_t value) { buffer_size_kb_ = value; _has_field_.set(10); }
-
-  bool has_drain_period_ms() const { return _has_field_[11]; }
-  uint32_t drain_period_ms() const { return drain_period_ms_; }
-  void set_drain_period_ms(uint32_t value) { drain_period_ms_ = value; _has_field_.set(11); }
-
-  bool has_compact_sched() const { return _has_field_[12]; }
-  const FtraceConfig_CompactSchedConfig& compact_sched() const { return *compact_sched_; }
-  FtraceConfig_CompactSchedConfig* mutable_compact_sched() { _has_field_.set(12); return compact_sched_.get(); }
-
-  bool has_symbolize_ksyms() const { return _has_field_[13]; }
-  bool symbolize_ksyms() const { return symbolize_ksyms_; }
-  void set_symbolize_ksyms(bool value) { symbolize_ksyms_ = value; _has_field_.set(13); }
-
-  bool has_initialize_ksyms_synchronously_for_testing() const { return _has_field_[14]; }
-  bool initialize_ksyms_synchronously_for_testing() const { return initialize_ksyms_synchronously_for_testing_; }
-  void set_initialize_ksyms_synchronously_for_testing(bool value) { initialize_ksyms_synchronously_for_testing_ = value; _has_field_.set(14); }
-
- private:
-  std::vector<std::string> ftrace_events_;
-  std::vector<std::string> atrace_categories_;
-  std::vector<std::string> atrace_apps_;
-  uint32_t buffer_size_kb_{};
-  uint32_t drain_period_ms_{};
-  ::protozero::CopyablePtr<FtraceConfig_CompactSchedConfig> compact_sched_;
-  bool symbolize_ksyms_{};
-  bool initialize_ksyms_synchronously_for_testing_{};
-
-  // Allows to preserve unknown protobuf fields for compatibility
-  // with future versions of .proto files.
-  std::string unknown_fields_;
-
-  std::bitset<15> _has_field_{};
-};
-
-
-class PERFETTO_EXPORT FtraceConfig_CompactSchedConfig : public ::protozero::CppMessageObj {
- public:
-  enum FieldNumbers {
-    kEnabledFieldNumber = 1,
-  };
-
-  FtraceConfig_CompactSchedConfig();
-  ~FtraceConfig_CompactSchedConfig() override;
-  FtraceConfig_CompactSchedConfig(FtraceConfig_CompactSchedConfig&&) noexcept;
-  FtraceConfig_CompactSchedConfig& operator=(FtraceConfig_CompactSchedConfig&&);
-  FtraceConfig_CompactSchedConfig(const FtraceConfig_CompactSchedConfig&);
-  FtraceConfig_CompactSchedConfig& operator=(const FtraceConfig_CompactSchedConfig&);
-  bool operator==(const FtraceConfig_CompactSchedConfig&) const;
-  bool operator!=(const FtraceConfig_CompactSchedConfig& other) const { return !(*this == other); }
-
-  bool ParseFromArray(const void*, size_t) override;
-  std::string SerializeAsString() const override;
-  std::vector<uint8_t> SerializeAsArray() const override;
-  void Serialize(::protozero::Message*) const;
-
-  bool has_enabled() const { return _has_field_[1]; }
-  bool enabled() const { return enabled_; }
-  void set_enabled(bool value) { enabled_ = value; _has_field_.set(1); }
-
- private:
-  bool enabled_{};
-
-  // Allows to preserve unknown protobuf fields for compatibility
-  // with future versions of .proto files.
-  std::string unknown_fields_;
-
-  std::bitset<2> _has_field_{};
-};
-
-}  // namespace perfetto
-}  // namespace protos
-}  // namespace gen
-
-#endif  // PERFETTO_PROTOS_PROTOS_PERFETTO_CONFIG_FTRACE_FTRACE_CONFIG_PROTO_CPP_H_
-// gen_amalgamated expanded: #include "perfetto/protozero/message.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/packed_repeated_fields.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/proto_decoder.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/scattered_heap_buffer.h"
-// DO NOT EDIT. Autogenerated by Perfetto cppgen_plugin
-#if defined(__GNUC__) || defined(__clang__)
-#pragma GCC diagnostic push
-#pragma GCC diagnostic ignored "-Wfloat-equal"
-#endif
-// gen_amalgamated expanded: #include "protos/perfetto/config/ftrace/ftrace_config.gen.h"
-
-namespace perfetto {
-namespace protos {
-namespace gen {
-
-FtraceConfig::FtraceConfig() = default;
-FtraceConfig::~FtraceConfig() = default;
-FtraceConfig::FtraceConfig(const FtraceConfig&) = default;
-FtraceConfig& FtraceConfig::operator=(const FtraceConfig&) = default;
-FtraceConfig::FtraceConfig(FtraceConfig&&) noexcept = default;
-FtraceConfig& FtraceConfig::operator=(FtraceConfig&&) = default;
-
-bool FtraceConfig::operator==(const FtraceConfig& other) const {
-  return unknown_fields_ == other.unknown_fields_
-   && ftrace_events_ == other.ftrace_events_
-   && atrace_categories_ == other.atrace_categories_
-   && atrace_apps_ == other.atrace_apps_
-   && buffer_size_kb_ == other.buffer_size_kb_
-   && drain_period_ms_ == other.drain_period_ms_
-   && compact_sched_ == other.compact_sched_
-   && symbolize_ksyms_ == other.symbolize_ksyms_
-   && initialize_ksyms_synchronously_for_testing_ == other.initialize_ksyms_synchronously_for_testing_;
-}
-
-bool FtraceConfig::ParseFromArray(const void* raw, size_t size) {
-  ftrace_events_.clear();
-  atrace_categories_.clear();
-  atrace_apps_.clear();
-  unknown_fields_.clear();
-  bool packed_error = false;
-
-  ::protozero::ProtoDecoder dec(raw, size);
-  for (auto field = dec.ReadField(); field.valid(); field = dec.ReadField()) {
-    if (field.id() < _has_field_.size()) {
-      _has_field_.set(field.id());
-    }
-    switch (field.id()) {
-      case 1 /* ftrace_events */:
-        ftrace_events_.emplace_back();
-        field.get(&ftrace_events_.back());
-        break;
-      case 2 /* atrace_categories */:
-        atrace_categories_.emplace_back();
-        field.get(&atrace_categories_.back());
-        break;
-      case 3 /* atrace_apps */:
-        atrace_apps_.emplace_back();
-        field.get(&atrace_apps_.back());
-        break;
-      case 10 /* buffer_size_kb */:
-        field.get(&buffer_size_kb_);
-        break;
-      case 11 /* drain_period_ms */:
-        field.get(&drain_period_ms_);
-        break;
-      case 12 /* compact_sched */:
-        (*compact_sched_).ParseFromArray(field.data(), field.size());
-        break;
-      case 13 /* symbolize_ksyms */:
-        field.get(&symbolize_ksyms_);
-        break;
-      case 14 /* initialize_ksyms_synchronously_for_testing */:
-        field.get(&initialize_ksyms_synchronously_for_testing_);
-        break;
-      default:
-        field.SerializeAndAppendTo(&unknown_fields_);
-        break;
-    }
-  }
-  return !packed_error && !dec.bytes_left();
-}
-
-std::string FtraceConfig::SerializeAsString() const {
-  ::protozero::HeapBuffered<::protozero::Message> msg;
-  Serialize(msg.get());
-  return msg.SerializeAsString();
-}
-
-std::vector<uint8_t> FtraceConfig::SerializeAsArray() const {
-  ::protozero::HeapBuffered<::protozero::Message> msg;
-  Serialize(msg.get());
-  return msg.SerializeAsArray();
-}
-
-void FtraceConfig::Serialize(::protozero::Message* msg) const {
-  // Field 1: ftrace_events
-  for (auto& it : ftrace_events_) {
-    msg->AppendString(1, it);
-  }
-
-  // Field 2: atrace_categories
-  for (auto& it : atrace_categories_) {
-    msg->AppendString(2, it);
-  }
-
-  // Field 3: atrace_apps
-  for (auto& it : atrace_apps_) {
-    msg->AppendString(3, it);
-  }
-
-  // Field 10: buffer_size_kb
-  if (_has_field_[10]) {
-    msg->AppendVarInt(10, buffer_size_kb_);
-  }
-
-  // Field 11: drain_period_ms
-  if (_has_field_[11]) {
-    msg->AppendVarInt(11, drain_period_ms_);
-  }
-
-  // Field 12: compact_sched
-  if (_has_field_[12]) {
-    (*compact_sched_).Serialize(msg->BeginNestedMessage<::protozero::Message>(12));
-  }
-
-  // Field 13: symbolize_ksyms
-  if (_has_field_[13]) {
-    msg->AppendTinyVarInt(13, symbolize_ksyms_);
-  }
-
-  // Field 14: initialize_ksyms_synchronously_for_testing
-  if (_has_field_[14]) {
-    msg->AppendTinyVarInt(14, initialize_ksyms_synchronously_for_testing_);
-  }
-
-  msg->AppendRawProtoBytes(unknown_fields_.data(), unknown_fields_.size());
-}
-
-
-FtraceConfig_CompactSchedConfig::FtraceConfig_CompactSchedConfig() = default;
-FtraceConfig_CompactSchedConfig::~FtraceConfig_CompactSchedConfig() = default;
-FtraceConfig_CompactSchedConfig::FtraceConfig_CompactSchedConfig(const FtraceConfig_CompactSchedConfig&) = default;
-FtraceConfig_CompactSchedConfig& FtraceConfig_CompactSchedConfig::operator=(const FtraceConfig_CompactSchedConfig&) = default;
-FtraceConfig_CompactSchedConfig::FtraceConfig_CompactSchedConfig(FtraceConfig_CompactSchedConfig&&) noexcept = default;
-FtraceConfig_CompactSchedConfig& FtraceConfig_CompactSchedConfig::operator=(FtraceConfig_CompactSchedConfig&&) = default;
-
-bool FtraceConfig_CompactSchedConfig::operator==(const FtraceConfig_CompactSchedConfig& other) const {
-  return unknown_fields_ == other.unknown_fields_
-   && enabled_ == other.enabled_;
-}
-
-bool FtraceConfig_CompactSchedConfig::ParseFromArray(const void* raw, size_t size) {
-  unknown_fields_.clear();
-  bool packed_error = false;
-
-  ::protozero::ProtoDecoder dec(raw, size);
-  for (auto field = dec.ReadField(); field.valid(); field = dec.ReadField()) {
-    if (field.id() < _has_field_.size()) {
-      _has_field_.set(field.id());
-    }
-    switch (field.id()) {
-      case 1 /* enabled */:
-        field.get(&enabled_);
-        break;
-      default:
-        field.SerializeAndAppendTo(&unknown_fields_);
-        break;
-    }
-  }
-  return !packed_error && !dec.bytes_left();
-}
-
-std::string FtraceConfig_CompactSchedConfig::SerializeAsString() const {
-  ::protozero::HeapBuffered<::protozero::Message> msg;
-  Serialize(msg.get());
-  return msg.SerializeAsString();
-}
-
-std::vector<uint8_t> FtraceConfig_CompactSchedConfig::SerializeAsArray() const {
-  ::protozero::HeapBuffered<::protozero::Message> msg;
-  Serialize(msg.get());
-  return msg.SerializeAsArray();
-}
-
-void FtraceConfig_CompactSchedConfig::Serialize(::protozero::Message* msg) const {
-  // Field 1: enabled
-  if (_has_field_[1]) {
-    msg->AppendTinyVarInt(1, enabled_);
-  }
-
-  msg->AppendRawProtoBytes(unknown_fields_.data(), unknown_fields_.size());
-}
-
-}  // namespace perfetto
-}  // namespace protos
-}  // namespace gen
-#if defined(__GNUC__) || defined(__clang__)
-#pragma GCC diagnostic pop
-#endif
-// gen_amalgamated begin source: gen/protos/perfetto/config/gpu/gpu_counter_config.gen.cc
-// gen_amalgamated begin header: gen/protos/perfetto/config/gpu/gpu_counter_config.gen.h
-// DO NOT EDIT. Autogenerated by Perfetto cppgen_plugin
-#ifndef PERFETTO_PROTOS_PROTOS_PERFETTO_CONFIG_GPU_GPU_COUNTER_CONFIG_PROTO_CPP_H_
-#define PERFETTO_PROTOS_PROTOS_PERFETTO_CONFIG_GPU_GPU_COUNTER_CONFIG_PROTO_CPP_H_
-
-#include <stdint.h>
-#include <bitset>
-#include <vector>
-#include <string>
-#include <type_traits>
-
-// gen_amalgamated expanded: #include "perfetto/protozero/cpp_message_obj.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/copyable_ptr.h"
-// gen_amalgamated expanded: #include "perfetto/base/export.h"
-
-namespace perfetto {
-namespace protos {
-namespace gen {
-class GpuCounterConfig;
-}  // namespace perfetto
-}  // namespace protos
-}  // namespace gen
-
-namespace protozero {
-class Message;
-}  // namespace protozero
-
-namespace perfetto {
-namespace protos {
-namespace gen {
-
-class PERFETTO_EXPORT GpuCounterConfig : public ::protozero::CppMessageObj {
- public:
-  enum FieldNumbers {
-    kCounterPeriodNsFieldNumber = 1,
-    kCounterIdsFieldNumber = 2,
-    kInstrumentedSamplingFieldNumber = 3,
-    kFixGpuClockFieldNumber = 4,
-  };
-
-  GpuCounterConfig();
-  ~GpuCounterConfig() override;
-  GpuCounterConfig(GpuCounterConfig&&) noexcept;
-  GpuCounterConfig& operator=(GpuCounterConfig&&);
-  GpuCounterConfig(const GpuCounterConfig&);
-  GpuCounterConfig& operator=(const GpuCounterConfig&);
-  bool operator==(const GpuCounterConfig&) const;
-  bool operator!=(const GpuCounterConfig& other) const { return !(*this == other); }
-
-  bool ParseFromArray(const void*, size_t) override;
-  std::string SerializeAsString() const override;
-  std::vector<uint8_t> SerializeAsArray() const override;
-  void Serialize(::protozero::Message*) const;
-
-  bool has_counter_period_ns() const { return _has_field_[1]; }
-  uint64_t counter_period_ns() const { return counter_period_ns_; }
-  void set_counter_period_ns(uint64_t value) { counter_period_ns_ = value; _has_field_.set(1); }
-
-  const std::vector<uint32_t>& counter_ids() const { return counter_ids_; }
-  std::vector<uint32_t>* mutable_counter_ids() { return &counter_ids_; }
-  int counter_ids_size() const { return static_cast<int>(counter_ids_.size()); }
-  void clear_counter_ids() { counter_ids_.clear(); }
-  void add_counter_ids(uint32_t value) { counter_ids_.emplace_back(value); }
-  uint32_t* add_counter_ids() { counter_ids_.emplace_back(); return &counter_ids_.back(); }
-
-  bool has_instrumented_sampling() const { return _has_field_[3]; }
-  bool instrumented_sampling() const { return instrumented_sampling_; }
-  void set_instrumented_sampling(bool value) { instrumented_sampling_ = value; _has_field_.set(3); }
-
-  bool has_fix_gpu_clock() const { return _has_field_[4]; }
-  bool fix_gpu_clock() const { return fix_gpu_clock_; }
-  void set_fix_gpu_clock(bool value) { fix_gpu_clock_ = value; _has_field_.set(4); }
-
- private:
-  uint64_t counter_period_ns_{};
-  std::vector<uint32_t> counter_ids_;
-  bool instrumented_sampling_{};
-  bool fix_gpu_clock_{};
-
-  // Allows to preserve unknown protobuf fields for compatibility
-  // with future versions of .proto files.
-  std::string unknown_fields_;
-
-  std::bitset<5> _has_field_{};
-};
-
-}  // namespace perfetto
-}  // namespace protos
-}  // namespace gen
-
-#endif  // PERFETTO_PROTOS_PROTOS_PERFETTO_CONFIG_GPU_GPU_COUNTER_CONFIG_PROTO_CPP_H_
-// gen_amalgamated expanded: #include "perfetto/protozero/message.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/packed_repeated_fields.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/proto_decoder.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/scattered_heap_buffer.h"
-// DO NOT EDIT. Autogenerated by Perfetto cppgen_plugin
-#if defined(__GNUC__) || defined(__clang__)
-#pragma GCC diagnostic push
-#pragma GCC diagnostic ignored "-Wfloat-equal"
-#endif
-// gen_amalgamated expanded: #include "protos/perfetto/config/gpu/gpu_counter_config.gen.h"
-
-namespace perfetto {
-namespace protos {
-namespace gen {
-
-GpuCounterConfig::GpuCounterConfig() = default;
-GpuCounterConfig::~GpuCounterConfig() = default;
-GpuCounterConfig::GpuCounterConfig(const GpuCounterConfig&) = default;
-GpuCounterConfig& GpuCounterConfig::operator=(const GpuCounterConfig&) = default;
-GpuCounterConfig::GpuCounterConfig(GpuCounterConfig&&) noexcept = default;
-GpuCounterConfig& GpuCounterConfig::operator=(GpuCounterConfig&&) = default;
-
-bool GpuCounterConfig::operator==(const GpuCounterConfig& other) const {
-  return unknown_fields_ == other.unknown_fields_
-   && counter_period_ns_ == other.counter_period_ns_
-   && counter_ids_ == other.counter_ids_
-   && instrumented_sampling_ == other.instrumented_sampling_
-   && fix_gpu_clock_ == other.fix_gpu_clock_;
-}
-
-bool GpuCounterConfig::ParseFromArray(const void* raw, size_t size) {
-  counter_ids_.clear();
-  unknown_fields_.clear();
-  bool packed_error = false;
-
-  ::protozero::ProtoDecoder dec(raw, size);
-  for (auto field = dec.ReadField(); field.valid(); field = dec.ReadField()) {
-    if (field.id() < _has_field_.size()) {
-      _has_field_.set(field.id());
-    }
-    switch (field.id()) {
-      case 1 /* counter_period_ns */:
-        field.get(&counter_period_ns_);
-        break;
-      case 2 /* counter_ids */:
-        counter_ids_.emplace_back();
-        field.get(&counter_ids_.back());
-        break;
-      case 3 /* instrumented_sampling */:
-        field.get(&instrumented_sampling_);
-        break;
-      case 4 /* fix_gpu_clock */:
-        field.get(&fix_gpu_clock_);
-        break;
-      default:
-        field.SerializeAndAppendTo(&unknown_fields_);
-        break;
-    }
-  }
-  return !packed_error && !dec.bytes_left();
-}
-
-std::string GpuCounterConfig::SerializeAsString() const {
-  ::protozero::HeapBuffered<::protozero::Message> msg;
-  Serialize(msg.get());
-  return msg.SerializeAsString();
-}
-
-std::vector<uint8_t> GpuCounterConfig::SerializeAsArray() const {
-  ::protozero::HeapBuffered<::protozero::Message> msg;
-  Serialize(msg.get());
-  return msg.SerializeAsArray();
-}
-
-void GpuCounterConfig::Serialize(::protozero::Message* msg) const {
-  // Field 1: counter_period_ns
-  if (_has_field_[1]) {
-    msg->AppendVarInt(1, counter_period_ns_);
-  }
-
-  // Field 2: counter_ids
-  for (auto& it : counter_ids_) {
-    msg->AppendVarInt(2, it);
-  }
-
-  // Field 3: instrumented_sampling
-  if (_has_field_[3]) {
-    msg->AppendTinyVarInt(3, instrumented_sampling_);
-  }
-
-  // Field 4: fix_gpu_clock
-  if (_has_field_[4]) {
-    msg->AppendTinyVarInt(4, fix_gpu_clock_);
-  }
-
-  msg->AppendRawProtoBytes(unknown_fields_.data(), unknown_fields_.size());
-}
-
-}  // namespace perfetto
-}  // namespace protos
-}  // namespace gen
-#if defined(__GNUC__) || defined(__clang__)
-#pragma GCC diagnostic pop
-#endif
-// gen_amalgamated begin source: gen/protos/perfetto/config/gpu/vulkan_memory_config.gen.cc
-// gen_amalgamated begin header: gen/protos/perfetto/config/gpu/vulkan_memory_config.gen.h
-// DO NOT EDIT. Autogenerated by Perfetto cppgen_plugin
-#ifndef PERFETTO_PROTOS_PROTOS_PERFETTO_CONFIG_GPU_VULKAN_MEMORY_CONFIG_PROTO_CPP_H_
-#define PERFETTO_PROTOS_PROTOS_PERFETTO_CONFIG_GPU_VULKAN_MEMORY_CONFIG_PROTO_CPP_H_
-
-#include <stdint.h>
-#include <bitset>
-#include <vector>
-#include <string>
-#include <type_traits>
-
-// gen_amalgamated expanded: #include "perfetto/protozero/cpp_message_obj.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/copyable_ptr.h"
-// gen_amalgamated expanded: #include "perfetto/base/export.h"
-
-namespace perfetto {
-namespace protos {
-namespace gen {
-class VulkanMemoryConfig;
-}  // namespace perfetto
-}  // namespace protos
-}  // namespace gen
-
-namespace protozero {
-class Message;
-}  // namespace protozero
-
-namespace perfetto {
-namespace protos {
-namespace gen {
-
-class PERFETTO_EXPORT VulkanMemoryConfig : public ::protozero::CppMessageObj {
- public:
-  enum FieldNumbers {
-    kTrackDriverMemoryUsageFieldNumber = 1,
-    kTrackDeviceMemoryUsageFieldNumber = 2,
-  };
-
-  VulkanMemoryConfig();
-  ~VulkanMemoryConfig() override;
-  VulkanMemoryConfig(VulkanMemoryConfig&&) noexcept;
-  VulkanMemoryConfig& operator=(VulkanMemoryConfig&&);
-  VulkanMemoryConfig(const VulkanMemoryConfig&);
-  VulkanMemoryConfig& operator=(const VulkanMemoryConfig&);
-  bool operator==(const VulkanMemoryConfig&) const;
-  bool operator!=(const VulkanMemoryConfig& other) const { return !(*this == other); }
-
-  bool ParseFromArray(const void*, size_t) override;
-  std::string SerializeAsString() const override;
-  std::vector<uint8_t> SerializeAsArray() const override;
-  void Serialize(::protozero::Message*) const;
-
-  bool has_track_driver_memory_usage() const { return _has_field_[1]; }
-  bool track_driver_memory_usage() const { return track_driver_memory_usage_; }
-  void set_track_driver_memory_usage(bool value) { track_driver_memory_usage_ = value; _has_field_.set(1); }
-
-  bool has_track_device_memory_usage() const { return _has_field_[2]; }
-  bool track_device_memory_usage() const { return track_device_memory_usage_; }
-  void set_track_device_memory_usage(bool value) { track_device_memory_usage_ = value; _has_field_.set(2); }
-
- private:
-  bool track_driver_memory_usage_{};
-  bool track_device_memory_usage_{};
-
-  // Allows to preserve unknown protobuf fields for compatibility
-  // with future versions of .proto files.
-  std::string unknown_fields_;
-
-  std::bitset<3> _has_field_{};
-};
-
-}  // namespace perfetto
-}  // namespace protos
-}  // namespace gen
-
-#endif  // PERFETTO_PROTOS_PROTOS_PERFETTO_CONFIG_GPU_VULKAN_MEMORY_CONFIG_PROTO_CPP_H_
-// gen_amalgamated expanded: #include "perfetto/protozero/message.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/packed_repeated_fields.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/proto_decoder.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/scattered_heap_buffer.h"
-// DO NOT EDIT. Autogenerated by Perfetto cppgen_plugin
-#if defined(__GNUC__) || defined(__clang__)
-#pragma GCC diagnostic push
-#pragma GCC diagnostic ignored "-Wfloat-equal"
-#endif
-// gen_amalgamated expanded: #include "protos/perfetto/config/gpu/vulkan_memory_config.gen.h"
-
-namespace perfetto {
-namespace protos {
-namespace gen {
-
-VulkanMemoryConfig::VulkanMemoryConfig() = default;
-VulkanMemoryConfig::~VulkanMemoryConfig() = default;
-VulkanMemoryConfig::VulkanMemoryConfig(const VulkanMemoryConfig&) = default;
-VulkanMemoryConfig& VulkanMemoryConfig::operator=(const VulkanMemoryConfig&) = default;
-VulkanMemoryConfig::VulkanMemoryConfig(VulkanMemoryConfig&&) noexcept = default;
-VulkanMemoryConfig& VulkanMemoryConfig::operator=(VulkanMemoryConfig&&) = default;
-
-bool VulkanMemoryConfig::operator==(const VulkanMemoryConfig& other) const {
-  return unknown_fields_ == other.unknown_fields_
-   && track_driver_memory_usage_ == other.track_driver_memory_usage_
-   && track_device_memory_usage_ == other.track_device_memory_usage_;
-}
-
-bool VulkanMemoryConfig::ParseFromArray(const void* raw, size_t size) {
-  unknown_fields_.clear();
-  bool packed_error = false;
-
-  ::protozero::ProtoDecoder dec(raw, size);
-  for (auto field = dec.ReadField(); field.valid(); field = dec.ReadField()) {
-    if (field.id() < _has_field_.size()) {
-      _has_field_.set(field.id());
-    }
-    switch (field.id()) {
-      case 1 /* track_driver_memory_usage */:
-        field.get(&track_driver_memory_usage_);
-        break;
-      case 2 /* track_device_memory_usage */:
-        field.get(&track_device_memory_usage_);
-        break;
-      default:
-        field.SerializeAndAppendTo(&unknown_fields_);
-        break;
-    }
-  }
-  return !packed_error && !dec.bytes_left();
-}
-
-std::string VulkanMemoryConfig::SerializeAsString() const {
-  ::protozero::HeapBuffered<::protozero::Message> msg;
-  Serialize(msg.get());
-  return msg.SerializeAsString();
-}
-
-std::vector<uint8_t> VulkanMemoryConfig::SerializeAsArray() const {
-  ::protozero::HeapBuffered<::protozero::Message> msg;
-  Serialize(msg.get());
-  return msg.SerializeAsArray();
-}
-
-void VulkanMemoryConfig::Serialize(::protozero::Message* msg) const {
-  // Field 1: track_driver_memory_usage
-  if (_has_field_[1]) {
-    msg->AppendTinyVarInt(1, track_driver_memory_usage_);
-  }
-
-  // Field 2: track_device_memory_usage
-  if (_has_field_[2]) {
-    msg->AppendTinyVarInt(2, track_device_memory_usage_);
-  }
-
-  msg->AppendRawProtoBytes(unknown_fields_.data(), unknown_fields_.size());
-}
-
-}  // namespace perfetto
-}  // namespace protos
-}  // namespace gen
-#if defined(__GNUC__) || defined(__clang__)
-#pragma GCC diagnostic pop
-#endif
-// gen_amalgamated begin source: gen/protos/perfetto/config/inode_file/inode_file_config.gen.cc
-// gen_amalgamated begin header: gen/protos/perfetto/config/inode_file/inode_file_config.gen.h
-// DO NOT EDIT. Autogenerated by Perfetto cppgen_plugin
-#ifndef PERFETTO_PROTOS_PROTOS_PERFETTO_CONFIG_INODE_FILE_INODE_FILE_CONFIG_PROTO_CPP_H_
-#define PERFETTO_PROTOS_PROTOS_PERFETTO_CONFIG_INODE_FILE_INODE_FILE_CONFIG_PROTO_CPP_H_
-
-#include <stdint.h>
-#include <bitset>
-#include <vector>
-#include <string>
-#include <type_traits>
-
-// gen_amalgamated expanded: #include "perfetto/protozero/cpp_message_obj.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/copyable_ptr.h"
-// gen_amalgamated expanded: #include "perfetto/base/export.h"
-
-namespace perfetto {
-namespace protos {
-namespace gen {
-class InodeFileConfig;
-class InodeFileConfig_MountPointMappingEntry;
-}  // namespace perfetto
-}  // namespace protos
-}  // namespace gen
-
-namespace protozero {
-class Message;
-}  // namespace protozero
-
-namespace perfetto {
-namespace protos {
-namespace gen {
-
-class PERFETTO_EXPORT InodeFileConfig : public ::protozero::CppMessageObj {
- public:
-  using MountPointMappingEntry = InodeFileConfig_MountPointMappingEntry;
-  enum FieldNumbers {
-    kScanIntervalMsFieldNumber = 1,
-    kScanDelayMsFieldNumber = 2,
-    kScanBatchSizeFieldNumber = 3,
-    kDoNotScanFieldNumber = 4,
-    kScanMountPointsFieldNumber = 5,
-    kMountPointMappingFieldNumber = 6,
-  };
-
-  InodeFileConfig();
-  ~InodeFileConfig() override;
-  InodeFileConfig(InodeFileConfig&&) noexcept;
-  InodeFileConfig& operator=(InodeFileConfig&&);
-  InodeFileConfig(const InodeFileConfig&);
-  InodeFileConfig& operator=(const InodeFileConfig&);
-  bool operator==(const InodeFileConfig&) const;
-  bool operator!=(const InodeFileConfig& other) const { return !(*this == other); }
-
-  bool ParseFromArray(const void*, size_t) override;
-  std::string SerializeAsString() const override;
-  std::vector<uint8_t> SerializeAsArray() const override;
-  void Serialize(::protozero::Message*) const;
-
-  bool has_scan_interval_ms() const { return _has_field_[1]; }
-  uint32_t scan_interval_ms() const { return scan_interval_ms_; }
-  void set_scan_interval_ms(uint32_t value) { scan_interval_ms_ = value; _has_field_.set(1); }
-
-  bool has_scan_delay_ms() const { return _has_field_[2]; }
-  uint32_t scan_delay_ms() const { return scan_delay_ms_; }
-  void set_scan_delay_ms(uint32_t value) { scan_delay_ms_ = value; _has_field_.set(2); }
-
-  bool has_scan_batch_size() const { return _has_field_[3]; }
-  uint32_t scan_batch_size() const { return scan_batch_size_; }
-  void set_scan_batch_size(uint32_t value) { scan_batch_size_ = value; _has_field_.set(3); }
-
-  bool has_do_not_scan() const { return _has_field_[4]; }
-  bool do_not_scan() const { return do_not_scan_; }
-  void set_do_not_scan(bool value) { do_not_scan_ = value; _has_field_.set(4); }
-
-  const std::vector<std::string>& scan_mount_points() const { return scan_mount_points_; }
-  std::vector<std::string>* mutable_scan_mount_points() { return &scan_mount_points_; }
-  int scan_mount_points_size() const { return static_cast<int>(scan_mount_points_.size()); }
-  void clear_scan_mount_points() { scan_mount_points_.clear(); }
-  void add_scan_mount_points(std::string value) { scan_mount_points_.emplace_back(value); }
-  std::string* add_scan_mount_points() { scan_mount_points_.emplace_back(); return &scan_mount_points_.back(); }
-
-  const std::vector<InodeFileConfig_MountPointMappingEntry>& mount_point_mapping() const { return mount_point_mapping_; }
-  std::vector<InodeFileConfig_MountPointMappingEntry>* mutable_mount_point_mapping() { return &mount_point_mapping_; }
-  int mount_point_mapping_size() const;
-  void clear_mount_point_mapping();
-  InodeFileConfig_MountPointMappingEntry* add_mount_point_mapping();
-
- private:
-  uint32_t scan_interval_ms_{};
-  uint32_t scan_delay_ms_{};
-  uint32_t scan_batch_size_{};
-  bool do_not_scan_{};
-  std::vector<std::string> scan_mount_points_;
-  std::vector<InodeFileConfig_MountPointMappingEntry> mount_point_mapping_;
-
-  // Allows to preserve unknown protobuf fields for compatibility
-  // with future versions of .proto files.
-  std::string unknown_fields_;
-
-  std::bitset<7> _has_field_{};
-};
-
-
-class PERFETTO_EXPORT InodeFileConfig_MountPointMappingEntry : public ::protozero::CppMessageObj {
- public:
-  enum FieldNumbers {
-    kMountpointFieldNumber = 1,
-    kScanRootsFieldNumber = 2,
-  };
-
-  InodeFileConfig_MountPointMappingEntry();
-  ~InodeFileConfig_MountPointMappingEntry() override;
-  InodeFileConfig_MountPointMappingEntry(InodeFileConfig_MountPointMappingEntry&&) noexcept;
-  InodeFileConfig_MountPointMappingEntry& operator=(InodeFileConfig_MountPointMappingEntry&&);
-  InodeFileConfig_MountPointMappingEntry(const InodeFileConfig_MountPointMappingEntry&);
-  InodeFileConfig_MountPointMappingEntry& operator=(const InodeFileConfig_MountPointMappingEntry&);
-  bool operator==(const InodeFileConfig_MountPointMappingEntry&) const;
-  bool operator!=(const InodeFileConfig_MountPointMappingEntry& other) const { return !(*this == other); }
-
-  bool ParseFromArray(const void*, size_t) override;
-  std::string SerializeAsString() const override;
-  std::vector<uint8_t> SerializeAsArray() const override;
-  void Serialize(::protozero::Message*) const;
-
-  bool has_mountpoint() const { return _has_field_[1]; }
-  const std::string& mountpoint() const { return mountpoint_; }
-  void set_mountpoint(const std::string& value) { mountpoint_ = value; _has_field_.set(1); }
-
-  const std::vector<std::string>& scan_roots() const { return scan_roots_; }
-  std::vector<std::string>* mutable_scan_roots() { return &scan_roots_; }
-  int scan_roots_size() const { return static_cast<int>(scan_roots_.size()); }
-  void clear_scan_roots() { scan_roots_.clear(); }
-  void add_scan_roots(std::string value) { scan_roots_.emplace_back(value); }
-  std::string* add_scan_roots() { scan_roots_.emplace_back(); return &scan_roots_.back(); }
-
- private:
-  std::string mountpoint_{};
-  std::vector<std::string> scan_roots_;
-
-  // Allows to preserve unknown protobuf fields for compatibility
-  // with future versions of .proto files.
-  std::string unknown_fields_;
-
-  std::bitset<3> _has_field_{};
-};
-
-}  // namespace perfetto
-}  // namespace protos
-}  // namespace gen
-
-#endif  // PERFETTO_PROTOS_PROTOS_PERFETTO_CONFIG_INODE_FILE_INODE_FILE_CONFIG_PROTO_CPP_H_
-// gen_amalgamated expanded: #include "perfetto/protozero/message.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/packed_repeated_fields.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/proto_decoder.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/scattered_heap_buffer.h"
-// DO NOT EDIT. Autogenerated by Perfetto cppgen_plugin
-#if defined(__GNUC__) || defined(__clang__)
-#pragma GCC diagnostic push
-#pragma GCC diagnostic ignored "-Wfloat-equal"
-#endif
-// gen_amalgamated expanded: #include "protos/perfetto/config/inode_file/inode_file_config.gen.h"
-
-namespace perfetto {
-namespace protos {
-namespace gen {
-
-InodeFileConfig::InodeFileConfig() = default;
-InodeFileConfig::~InodeFileConfig() = default;
-InodeFileConfig::InodeFileConfig(const InodeFileConfig&) = default;
-InodeFileConfig& InodeFileConfig::operator=(const InodeFileConfig&) = default;
-InodeFileConfig::InodeFileConfig(InodeFileConfig&&) noexcept = default;
-InodeFileConfig& InodeFileConfig::operator=(InodeFileConfig&&) = default;
-
-bool InodeFileConfig::operator==(const InodeFileConfig& other) const {
-  return unknown_fields_ == other.unknown_fields_
-   && scan_interval_ms_ == other.scan_interval_ms_
-   && scan_delay_ms_ == other.scan_delay_ms_
-   && scan_batch_size_ == other.scan_batch_size_
-   && do_not_scan_ == other.do_not_scan_
-   && scan_mount_points_ == other.scan_mount_points_
-   && mount_point_mapping_ == other.mount_point_mapping_;
-}
-
-int InodeFileConfig::mount_point_mapping_size() const { return static_cast<int>(mount_point_mapping_.size()); }
-void InodeFileConfig::clear_mount_point_mapping() { mount_point_mapping_.clear(); }
-InodeFileConfig_MountPointMappingEntry* InodeFileConfig::add_mount_point_mapping() { mount_point_mapping_.emplace_back(); return &mount_point_mapping_.back(); }
-bool InodeFileConfig::ParseFromArray(const void* raw, size_t size) {
-  scan_mount_points_.clear();
-  mount_point_mapping_.clear();
-  unknown_fields_.clear();
-  bool packed_error = false;
-
-  ::protozero::ProtoDecoder dec(raw, size);
-  for (auto field = dec.ReadField(); field.valid(); field = dec.ReadField()) {
-    if (field.id() < _has_field_.size()) {
-      _has_field_.set(field.id());
-    }
-    switch (field.id()) {
-      case 1 /* scan_interval_ms */:
-        field.get(&scan_interval_ms_);
-        break;
-      case 2 /* scan_delay_ms */:
-        field.get(&scan_delay_ms_);
-        break;
-      case 3 /* scan_batch_size */:
-        field.get(&scan_batch_size_);
-        break;
-      case 4 /* do_not_scan */:
-        field.get(&do_not_scan_);
-        break;
-      case 5 /* scan_mount_points */:
-        scan_mount_points_.emplace_back();
-        field.get(&scan_mount_points_.back());
-        break;
-      case 6 /* mount_point_mapping */:
-        mount_point_mapping_.emplace_back();
-        mount_point_mapping_.back().ParseFromArray(field.data(), field.size());
-        break;
-      default:
-        field.SerializeAndAppendTo(&unknown_fields_);
-        break;
-    }
-  }
-  return !packed_error && !dec.bytes_left();
-}
-
-std::string InodeFileConfig::SerializeAsString() const {
-  ::protozero::HeapBuffered<::protozero::Message> msg;
-  Serialize(msg.get());
-  return msg.SerializeAsString();
-}
-
-std::vector<uint8_t> InodeFileConfig::SerializeAsArray() const {
-  ::protozero::HeapBuffered<::protozero::Message> msg;
-  Serialize(msg.get());
-  return msg.SerializeAsArray();
-}
-
-void InodeFileConfig::Serialize(::protozero::Message* msg) const {
-  // Field 1: scan_interval_ms
-  if (_has_field_[1]) {
-    msg->AppendVarInt(1, scan_interval_ms_);
-  }
-
-  // Field 2: scan_delay_ms
-  if (_has_field_[2]) {
-    msg->AppendVarInt(2, scan_delay_ms_);
-  }
-
-  // Field 3: scan_batch_size
-  if (_has_field_[3]) {
-    msg->AppendVarInt(3, scan_batch_size_);
-  }
-
-  // Field 4: do_not_scan
-  if (_has_field_[4]) {
-    msg->AppendTinyVarInt(4, do_not_scan_);
-  }
-
-  // Field 5: scan_mount_points
-  for (auto& it : scan_mount_points_) {
-    msg->AppendString(5, it);
-  }
-
-  // Field 6: mount_point_mapping
-  for (auto& it : mount_point_mapping_) {
-    it.Serialize(msg->BeginNestedMessage<::protozero::Message>(6));
-  }
-
-  msg->AppendRawProtoBytes(unknown_fields_.data(), unknown_fields_.size());
-}
-
-
-InodeFileConfig_MountPointMappingEntry::InodeFileConfig_MountPointMappingEntry() = default;
-InodeFileConfig_MountPointMappingEntry::~InodeFileConfig_MountPointMappingEntry() = default;
-InodeFileConfig_MountPointMappingEntry::InodeFileConfig_MountPointMappingEntry(const InodeFileConfig_MountPointMappingEntry&) = default;
-InodeFileConfig_MountPointMappingEntry& InodeFileConfig_MountPointMappingEntry::operator=(const InodeFileConfig_MountPointMappingEntry&) = default;
-InodeFileConfig_MountPointMappingEntry::InodeFileConfig_MountPointMappingEntry(InodeFileConfig_MountPointMappingEntry&&) noexcept = default;
-InodeFileConfig_MountPointMappingEntry& InodeFileConfig_MountPointMappingEntry::operator=(InodeFileConfig_MountPointMappingEntry&&) = default;
-
-bool InodeFileConfig_MountPointMappingEntry::operator==(const InodeFileConfig_MountPointMappingEntry& other) const {
-  return unknown_fields_ == other.unknown_fields_
-   && mountpoint_ == other.mountpoint_
-   && scan_roots_ == other.scan_roots_;
-}
-
-bool InodeFileConfig_MountPointMappingEntry::ParseFromArray(const void* raw, size_t size) {
-  scan_roots_.clear();
-  unknown_fields_.clear();
-  bool packed_error = false;
-
-  ::protozero::ProtoDecoder dec(raw, size);
-  for (auto field = dec.ReadField(); field.valid(); field = dec.ReadField()) {
-    if (field.id() < _has_field_.size()) {
-      _has_field_.set(field.id());
-    }
-    switch (field.id()) {
-      case 1 /* mountpoint */:
-        field.get(&mountpoint_);
-        break;
-      case 2 /* scan_roots */:
-        scan_roots_.emplace_back();
-        field.get(&scan_roots_.back());
-        break;
-      default:
-        field.SerializeAndAppendTo(&unknown_fields_);
-        break;
-    }
-  }
-  return !packed_error && !dec.bytes_left();
-}
-
-std::string InodeFileConfig_MountPointMappingEntry::SerializeAsString() const {
-  ::protozero::HeapBuffered<::protozero::Message> msg;
-  Serialize(msg.get());
-  return msg.SerializeAsString();
-}
-
-std::vector<uint8_t> InodeFileConfig_MountPointMappingEntry::SerializeAsArray() const {
-  ::protozero::HeapBuffered<::protozero::Message> msg;
-  Serialize(msg.get());
-  return msg.SerializeAsArray();
-}
-
-void InodeFileConfig_MountPointMappingEntry::Serialize(::protozero::Message* msg) const {
-  // Field 1: mountpoint
-  if (_has_field_[1]) {
-    msg->AppendString(1, mountpoint_);
-  }
-
-  // Field 2: scan_roots
-  for (auto& it : scan_roots_) {
-    msg->AppendString(2, it);
-  }
-
-  msg->AppendRawProtoBytes(unknown_fields_.data(), unknown_fields_.size());
-}
-
-}  // namespace perfetto
-}  // namespace protos
-}  // namespace gen
-#if defined(__GNUC__) || defined(__clang__)
-#pragma GCC diagnostic pop
-#endif
-// gen_amalgamated begin source: gen/protos/perfetto/config/interceptors/console_config.gen.cc
-// gen_amalgamated begin header: gen/protos/perfetto/config/interceptors/console_config.gen.h
-// DO NOT EDIT. Autogenerated by Perfetto cppgen_plugin
-#ifndef PERFETTO_PROTOS_PROTOS_PERFETTO_CONFIG_INTERCEPTORS_CONSOLE_CONFIG_PROTO_CPP_H_
-#define PERFETTO_PROTOS_PROTOS_PERFETTO_CONFIG_INTERCEPTORS_CONSOLE_CONFIG_PROTO_CPP_H_
-
-#include <stdint.h>
-#include <bitset>
-#include <vector>
-#include <string>
-#include <type_traits>
-
-// gen_amalgamated expanded: #include "perfetto/protozero/cpp_message_obj.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/copyable_ptr.h"
-// gen_amalgamated expanded: #include "perfetto/base/export.h"
-
-namespace perfetto {
-namespace protos {
-namespace gen {
-class ConsoleConfig;
-enum ConsoleConfig_Output : int;
-}  // namespace perfetto
-}  // namespace protos
-}  // namespace gen
-
-namespace protozero {
-class Message;
-}  // namespace protozero
-
-namespace perfetto {
-namespace protos {
-namespace gen {
-enum ConsoleConfig_Output : int {
-  ConsoleConfig_Output_OUTPUT_UNSPECIFIED = 0,
-  ConsoleConfig_Output_OUTPUT_STDOUT = 1,
-  ConsoleConfig_Output_OUTPUT_STDERR = 2,
-};
-
-class PERFETTO_EXPORT ConsoleConfig : public ::protozero::CppMessageObj {
- public:
-  using Output = ConsoleConfig_Output;
-  static constexpr auto OUTPUT_UNSPECIFIED = ConsoleConfig_Output_OUTPUT_UNSPECIFIED;
-  static constexpr auto OUTPUT_STDOUT = ConsoleConfig_Output_OUTPUT_STDOUT;
-  static constexpr auto OUTPUT_STDERR = ConsoleConfig_Output_OUTPUT_STDERR;
-  static constexpr auto Output_MIN = ConsoleConfig_Output_OUTPUT_UNSPECIFIED;
-  static constexpr auto Output_MAX = ConsoleConfig_Output_OUTPUT_STDERR;
-  enum FieldNumbers {
-    kOutputFieldNumber = 1,
-    kEnableColorsFieldNumber = 2,
-  };
-
-  ConsoleConfig();
-  ~ConsoleConfig() override;
-  ConsoleConfig(ConsoleConfig&&) noexcept;
-  ConsoleConfig& operator=(ConsoleConfig&&);
-  ConsoleConfig(const ConsoleConfig&);
-  ConsoleConfig& operator=(const ConsoleConfig&);
-  bool operator==(const ConsoleConfig&) const;
-  bool operator!=(const ConsoleConfig& other) const { return !(*this == other); }
-
-  bool ParseFromArray(const void*, size_t) override;
-  std::string SerializeAsString() const override;
-  std::vector<uint8_t> SerializeAsArray() const override;
-  void Serialize(::protozero::Message*) const;
-
-  bool has_output() const { return _has_field_[1]; }
-  ConsoleConfig_Output output() const { return output_; }
-  void set_output(ConsoleConfig_Output value) { output_ = value; _has_field_.set(1); }
-
-  bool has_enable_colors() const { return _has_field_[2]; }
-  bool enable_colors() const { return enable_colors_; }
-  void set_enable_colors(bool value) { enable_colors_ = value; _has_field_.set(2); }
-
- private:
-  ConsoleConfig_Output output_{};
-  bool enable_colors_{};
-
-  // Allows to preserve unknown protobuf fields for compatibility
-  // with future versions of .proto files.
-  std::string unknown_fields_;
-
-  std::bitset<3> _has_field_{};
-};
-
-}  // namespace perfetto
-}  // namespace protos
-}  // namespace gen
-
-#endif  // PERFETTO_PROTOS_PROTOS_PERFETTO_CONFIG_INTERCEPTORS_CONSOLE_CONFIG_PROTO_CPP_H_
-// gen_amalgamated expanded: #include "perfetto/protozero/message.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/packed_repeated_fields.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/proto_decoder.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/scattered_heap_buffer.h"
-// DO NOT EDIT. Autogenerated by Perfetto cppgen_plugin
-#if defined(__GNUC__) || defined(__clang__)
-#pragma GCC diagnostic push
-#pragma GCC diagnostic ignored "-Wfloat-equal"
-#endif
-// gen_amalgamated expanded: #include "protos/perfetto/config/interceptors/console_config.gen.h"
-
-namespace perfetto {
-namespace protos {
-namespace gen {
-
-ConsoleConfig::ConsoleConfig() = default;
-ConsoleConfig::~ConsoleConfig() = default;
-ConsoleConfig::ConsoleConfig(const ConsoleConfig&) = default;
-ConsoleConfig& ConsoleConfig::operator=(const ConsoleConfig&) = default;
-ConsoleConfig::ConsoleConfig(ConsoleConfig&&) noexcept = default;
-ConsoleConfig& ConsoleConfig::operator=(ConsoleConfig&&) = default;
-
-bool ConsoleConfig::operator==(const ConsoleConfig& other) const {
-  return unknown_fields_ == other.unknown_fields_
-   && output_ == other.output_
-   && enable_colors_ == other.enable_colors_;
-}
-
-bool ConsoleConfig::ParseFromArray(const void* raw, size_t size) {
-  unknown_fields_.clear();
-  bool packed_error = false;
-
-  ::protozero::ProtoDecoder dec(raw, size);
-  for (auto field = dec.ReadField(); field.valid(); field = dec.ReadField()) {
-    if (field.id() < _has_field_.size()) {
-      _has_field_.set(field.id());
-    }
-    switch (field.id()) {
-      case 1 /* output */:
-        field.get(&output_);
-        break;
-      case 2 /* enable_colors */:
-        field.get(&enable_colors_);
-        break;
-      default:
-        field.SerializeAndAppendTo(&unknown_fields_);
-        break;
-    }
-  }
-  return !packed_error && !dec.bytes_left();
-}
-
-std::string ConsoleConfig::SerializeAsString() const {
-  ::protozero::HeapBuffered<::protozero::Message> msg;
-  Serialize(msg.get());
-  return msg.SerializeAsString();
-}
-
-std::vector<uint8_t> ConsoleConfig::SerializeAsArray() const {
-  ::protozero::HeapBuffered<::protozero::Message> msg;
-  Serialize(msg.get());
-  return msg.SerializeAsArray();
-}
-
-void ConsoleConfig::Serialize(::protozero::Message* msg) const {
-  // Field 1: output
-  if (_has_field_[1]) {
-    msg->AppendVarInt(1, output_);
-  }
-
-  // Field 2: enable_colors
-  if (_has_field_[2]) {
-    msg->AppendTinyVarInt(2, enable_colors_);
-  }
-
-  msg->AppendRawProtoBytes(unknown_fields_.data(), unknown_fields_.size());
-}
-
-}  // namespace perfetto
-}  // namespace protos
-}  // namespace gen
-#if defined(__GNUC__) || defined(__clang__)
-#pragma GCC diagnostic pop
-#endif
-// gen_amalgamated begin source: gen/protos/perfetto/config/power/android_power_config.gen.cc
-// gen_amalgamated begin header: gen/protos/perfetto/config/power/android_power_config.gen.h
-// DO NOT EDIT. Autogenerated by Perfetto cppgen_plugin
-#ifndef PERFETTO_PROTOS_PROTOS_PERFETTO_CONFIG_POWER_ANDROID_POWER_CONFIG_PROTO_CPP_H_
-#define PERFETTO_PROTOS_PROTOS_PERFETTO_CONFIG_POWER_ANDROID_POWER_CONFIG_PROTO_CPP_H_
-
-#include <stdint.h>
-#include <bitset>
-#include <vector>
-#include <string>
-#include <type_traits>
-
-// gen_amalgamated expanded: #include "perfetto/protozero/cpp_message_obj.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/copyable_ptr.h"
-// gen_amalgamated expanded: #include "perfetto/base/export.h"
-
-namespace perfetto {
-namespace protos {
-namespace gen {
-class AndroidPowerConfig;
-enum AndroidPowerConfig_BatteryCounters : int;
-}  // namespace perfetto
-}  // namespace protos
-}  // namespace gen
-
-namespace protozero {
-class Message;
-}  // namespace protozero
-
-namespace perfetto {
-namespace protos {
-namespace gen {
-enum AndroidPowerConfig_BatteryCounters : int {
-  AndroidPowerConfig_BatteryCounters_BATTERY_COUNTER_UNSPECIFIED = 0,
-  AndroidPowerConfig_BatteryCounters_BATTERY_COUNTER_CHARGE = 1,
-  AndroidPowerConfig_BatteryCounters_BATTERY_COUNTER_CAPACITY_PERCENT = 2,
-  AndroidPowerConfig_BatteryCounters_BATTERY_COUNTER_CURRENT = 3,
-  AndroidPowerConfig_BatteryCounters_BATTERY_COUNTER_CURRENT_AVG = 4,
-};
-
-class PERFETTO_EXPORT AndroidPowerConfig : public ::protozero::CppMessageObj {
- public:
-  using BatteryCounters = AndroidPowerConfig_BatteryCounters;
-  static constexpr auto BATTERY_COUNTER_UNSPECIFIED = AndroidPowerConfig_BatteryCounters_BATTERY_COUNTER_UNSPECIFIED;
-  static constexpr auto BATTERY_COUNTER_CHARGE = AndroidPowerConfig_BatteryCounters_BATTERY_COUNTER_CHARGE;
-  static constexpr auto BATTERY_COUNTER_CAPACITY_PERCENT = AndroidPowerConfig_BatteryCounters_BATTERY_COUNTER_CAPACITY_PERCENT;
-  static constexpr auto BATTERY_COUNTER_CURRENT = AndroidPowerConfig_BatteryCounters_BATTERY_COUNTER_CURRENT;
-  static constexpr auto BATTERY_COUNTER_CURRENT_AVG = AndroidPowerConfig_BatteryCounters_BATTERY_COUNTER_CURRENT_AVG;
-  static constexpr auto BatteryCounters_MIN = AndroidPowerConfig_BatteryCounters_BATTERY_COUNTER_UNSPECIFIED;
-  static constexpr auto BatteryCounters_MAX = AndroidPowerConfig_BatteryCounters_BATTERY_COUNTER_CURRENT_AVG;
-  enum FieldNumbers {
-    kBatteryPollMsFieldNumber = 1,
-    kBatteryCountersFieldNumber = 2,
-    kCollectPowerRailsFieldNumber = 3,
-    kCollectEnergyEstimationBreakdownFieldNumber = 4,
-  };
-
-  AndroidPowerConfig();
-  ~AndroidPowerConfig() override;
-  AndroidPowerConfig(AndroidPowerConfig&&) noexcept;
-  AndroidPowerConfig& operator=(AndroidPowerConfig&&);
-  AndroidPowerConfig(const AndroidPowerConfig&);
-  AndroidPowerConfig& operator=(const AndroidPowerConfig&);
-  bool operator==(const AndroidPowerConfig&) const;
-  bool operator!=(const AndroidPowerConfig& other) const { return !(*this == other); }
-
-  bool ParseFromArray(const void*, size_t) override;
-  std::string SerializeAsString() const override;
-  std::vector<uint8_t> SerializeAsArray() const override;
-  void Serialize(::protozero::Message*) const;
-
-  bool has_battery_poll_ms() const { return _has_field_[1]; }
-  uint32_t battery_poll_ms() const { return battery_poll_ms_; }
-  void set_battery_poll_ms(uint32_t value) { battery_poll_ms_ = value; _has_field_.set(1); }
-
-  const std::vector<AndroidPowerConfig_BatteryCounters>& battery_counters() const { return battery_counters_; }
-  std::vector<AndroidPowerConfig_BatteryCounters>* mutable_battery_counters() { return &battery_counters_; }
-  int battery_counters_size() const { return static_cast<int>(battery_counters_.size()); }
-  void clear_battery_counters() { battery_counters_.clear(); }
-  void add_battery_counters(AndroidPowerConfig_BatteryCounters value) { battery_counters_.emplace_back(value); }
-  AndroidPowerConfig_BatteryCounters* add_battery_counters() { battery_counters_.emplace_back(); return &battery_counters_.back(); }
-
-  bool has_collect_power_rails() const { return _has_field_[3]; }
-  bool collect_power_rails() const { return collect_power_rails_; }
-  void set_collect_power_rails(bool value) { collect_power_rails_ = value; _has_field_.set(3); }
-
-  bool has_collect_energy_estimation_breakdown() const { return _has_field_[4]; }
-  bool collect_energy_estimation_breakdown() const { return collect_energy_estimation_breakdown_; }
-  void set_collect_energy_estimation_breakdown(bool value) { collect_energy_estimation_breakdown_ = value; _has_field_.set(4); }
-
- private:
-  uint32_t battery_poll_ms_{};
-  std::vector<AndroidPowerConfig_BatteryCounters> battery_counters_;
-  bool collect_power_rails_{};
-  bool collect_energy_estimation_breakdown_{};
-
-  // Allows to preserve unknown protobuf fields for compatibility
-  // with future versions of .proto files.
-  std::string unknown_fields_;
-
-  std::bitset<5> _has_field_{};
-};
-
-}  // namespace perfetto
-}  // namespace protos
-}  // namespace gen
-
-#endif  // PERFETTO_PROTOS_PROTOS_PERFETTO_CONFIG_POWER_ANDROID_POWER_CONFIG_PROTO_CPP_H_
-// gen_amalgamated expanded: #include "perfetto/protozero/message.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/packed_repeated_fields.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/proto_decoder.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/scattered_heap_buffer.h"
-// DO NOT EDIT. Autogenerated by Perfetto cppgen_plugin
-#if defined(__GNUC__) || defined(__clang__)
-#pragma GCC diagnostic push
-#pragma GCC diagnostic ignored "-Wfloat-equal"
-#endif
-// gen_amalgamated expanded: #include "protos/perfetto/config/power/android_power_config.gen.h"
-
-namespace perfetto {
-namespace protos {
-namespace gen {
-
-AndroidPowerConfig::AndroidPowerConfig() = default;
-AndroidPowerConfig::~AndroidPowerConfig() = default;
-AndroidPowerConfig::AndroidPowerConfig(const AndroidPowerConfig&) = default;
-AndroidPowerConfig& AndroidPowerConfig::operator=(const AndroidPowerConfig&) = default;
-AndroidPowerConfig::AndroidPowerConfig(AndroidPowerConfig&&) noexcept = default;
-AndroidPowerConfig& AndroidPowerConfig::operator=(AndroidPowerConfig&&) = default;
-
-bool AndroidPowerConfig::operator==(const AndroidPowerConfig& other) const {
-  return unknown_fields_ == other.unknown_fields_
-   && battery_poll_ms_ == other.battery_poll_ms_
-   && battery_counters_ == other.battery_counters_
-   && collect_power_rails_ == other.collect_power_rails_
-   && collect_energy_estimation_breakdown_ == other.collect_energy_estimation_breakdown_;
-}
-
-bool AndroidPowerConfig::ParseFromArray(const void* raw, size_t size) {
-  battery_counters_.clear();
-  unknown_fields_.clear();
-  bool packed_error = false;
-
-  ::protozero::ProtoDecoder dec(raw, size);
-  for (auto field = dec.ReadField(); field.valid(); field = dec.ReadField()) {
-    if (field.id() < _has_field_.size()) {
-      _has_field_.set(field.id());
-    }
-    switch (field.id()) {
-      case 1 /* battery_poll_ms */:
-        field.get(&battery_poll_ms_);
-        break;
-      case 2 /* battery_counters */:
-        battery_counters_.emplace_back();
-        field.get(&battery_counters_.back());
-        break;
-      case 3 /* collect_power_rails */:
-        field.get(&collect_power_rails_);
-        break;
-      case 4 /* collect_energy_estimation_breakdown */:
-        field.get(&collect_energy_estimation_breakdown_);
-        break;
-      default:
-        field.SerializeAndAppendTo(&unknown_fields_);
-        break;
-    }
-  }
-  return !packed_error && !dec.bytes_left();
-}
-
-std::string AndroidPowerConfig::SerializeAsString() const {
-  ::protozero::HeapBuffered<::protozero::Message> msg;
-  Serialize(msg.get());
-  return msg.SerializeAsString();
-}
-
-std::vector<uint8_t> AndroidPowerConfig::SerializeAsArray() const {
-  ::protozero::HeapBuffered<::protozero::Message> msg;
-  Serialize(msg.get());
-  return msg.SerializeAsArray();
-}
-
-void AndroidPowerConfig::Serialize(::protozero::Message* msg) const {
-  // Field 1: battery_poll_ms
-  if (_has_field_[1]) {
-    msg->AppendVarInt(1, battery_poll_ms_);
-  }
-
-  // Field 2: battery_counters
-  for (auto& it : battery_counters_) {
-    msg->AppendVarInt(2, it);
-  }
-
-  // Field 3: collect_power_rails
-  if (_has_field_[3]) {
-    msg->AppendTinyVarInt(3, collect_power_rails_);
-  }
-
-  // Field 4: collect_energy_estimation_breakdown
-  if (_has_field_[4]) {
-    msg->AppendTinyVarInt(4, collect_energy_estimation_breakdown_);
-  }
-
-  msg->AppendRawProtoBytes(unknown_fields_.data(), unknown_fields_.size());
-}
-
-}  // namespace perfetto
-}  // namespace protos
-}  // namespace gen
-#if defined(__GNUC__) || defined(__clang__)
-#pragma GCC diagnostic pop
-#endif
-// gen_amalgamated begin source: gen/protos/perfetto/config/process_stats/process_stats_config.gen.cc
-// gen_amalgamated begin header: gen/protos/perfetto/config/process_stats/process_stats_config.gen.h
-// DO NOT EDIT. Autogenerated by Perfetto cppgen_plugin
-#ifndef PERFETTO_PROTOS_PROTOS_PERFETTO_CONFIG_PROCESS_STATS_PROCESS_STATS_CONFIG_PROTO_CPP_H_
-#define PERFETTO_PROTOS_PROTOS_PERFETTO_CONFIG_PROCESS_STATS_PROCESS_STATS_CONFIG_PROTO_CPP_H_
-
-#include <stdint.h>
-#include <bitset>
-#include <vector>
-#include <string>
-#include <type_traits>
-
-// gen_amalgamated expanded: #include "perfetto/protozero/cpp_message_obj.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/copyable_ptr.h"
-// gen_amalgamated expanded: #include "perfetto/base/export.h"
-
-namespace perfetto {
-namespace protos {
-namespace gen {
-class ProcessStatsConfig;
-enum ProcessStatsConfig_Quirks : int;
-}  // namespace perfetto
-}  // namespace protos
-}  // namespace gen
-
-namespace protozero {
-class Message;
-}  // namespace protozero
-
-namespace perfetto {
-namespace protos {
-namespace gen {
-enum ProcessStatsConfig_Quirks : int {
-  ProcessStatsConfig_Quirks_QUIRKS_UNSPECIFIED = 0,
-  ProcessStatsConfig_Quirks_DISABLE_INITIAL_DUMP = 1,
-  ProcessStatsConfig_Quirks_DISABLE_ON_DEMAND = 2,
-};
-
-class PERFETTO_EXPORT ProcessStatsConfig : public ::protozero::CppMessageObj {
- public:
-  using Quirks = ProcessStatsConfig_Quirks;
-  static constexpr auto QUIRKS_UNSPECIFIED = ProcessStatsConfig_Quirks_QUIRKS_UNSPECIFIED;
-  static constexpr auto DISABLE_INITIAL_DUMP = ProcessStatsConfig_Quirks_DISABLE_INITIAL_DUMP;
-  static constexpr auto DISABLE_ON_DEMAND = ProcessStatsConfig_Quirks_DISABLE_ON_DEMAND;
-  static constexpr auto Quirks_MIN = ProcessStatsConfig_Quirks_QUIRKS_UNSPECIFIED;
-  static constexpr auto Quirks_MAX = ProcessStatsConfig_Quirks_DISABLE_ON_DEMAND;
-  enum FieldNumbers {
-    kQuirksFieldNumber = 1,
-    kScanAllProcessesOnStartFieldNumber = 2,
-    kRecordThreadNamesFieldNumber = 3,
-    kProcStatsPollMsFieldNumber = 4,
-    kProcStatsCacheTtlMsFieldNumber = 6,
-    kRecordThreadTimeInStateFieldNumber = 7,
-    kThreadTimeInStateCacheSizeFieldNumber = 8,
-  };
-
-  ProcessStatsConfig();
-  ~ProcessStatsConfig() override;
-  ProcessStatsConfig(ProcessStatsConfig&&) noexcept;
-  ProcessStatsConfig& operator=(ProcessStatsConfig&&);
-  ProcessStatsConfig(const ProcessStatsConfig&);
-  ProcessStatsConfig& operator=(const ProcessStatsConfig&);
-  bool operator==(const ProcessStatsConfig&) const;
-  bool operator!=(const ProcessStatsConfig& other) const { return !(*this == other); }
-
-  bool ParseFromArray(const void*, size_t) override;
-  std::string SerializeAsString() const override;
-  std::vector<uint8_t> SerializeAsArray() const override;
-  void Serialize(::protozero::Message*) const;
-
-  const std::vector<ProcessStatsConfig_Quirks>& quirks() const { return quirks_; }
-  std::vector<ProcessStatsConfig_Quirks>* mutable_quirks() { return &quirks_; }
-  int quirks_size() const { return static_cast<int>(quirks_.size()); }
-  void clear_quirks() { quirks_.clear(); }
-  void add_quirks(ProcessStatsConfig_Quirks value) { quirks_.emplace_back(value); }
-  ProcessStatsConfig_Quirks* add_quirks() { quirks_.emplace_back(); return &quirks_.back(); }
-
-  bool has_scan_all_processes_on_start() const { return _has_field_[2]; }
-  bool scan_all_processes_on_start() const { return scan_all_processes_on_start_; }
-  void set_scan_all_processes_on_start(bool value) { scan_all_processes_on_start_ = value; _has_field_.set(2); }
-
-  bool has_record_thread_names() const { return _has_field_[3]; }
-  bool record_thread_names() const { return record_thread_names_; }
-  void set_record_thread_names(bool value) { record_thread_names_ = value; _has_field_.set(3); }
-
-  bool has_proc_stats_poll_ms() const { return _has_field_[4]; }
-  uint32_t proc_stats_poll_ms() const { return proc_stats_poll_ms_; }
-  void set_proc_stats_poll_ms(uint32_t value) { proc_stats_poll_ms_ = value; _has_field_.set(4); }
-
-  bool has_proc_stats_cache_ttl_ms() const { return _has_field_[6]; }
-  uint32_t proc_stats_cache_ttl_ms() const { return proc_stats_cache_ttl_ms_; }
-  void set_proc_stats_cache_ttl_ms(uint32_t value) { proc_stats_cache_ttl_ms_ = value; _has_field_.set(6); }
-
-  bool has_record_thread_time_in_state() const { return _has_field_[7]; }
-  bool record_thread_time_in_state() const { return record_thread_time_in_state_; }
-  void set_record_thread_time_in_state(bool value) { record_thread_time_in_state_ = value; _has_field_.set(7); }
-
-  bool has_thread_time_in_state_cache_size() const { return _has_field_[8]; }
-  uint32_t thread_time_in_state_cache_size() const { return thread_time_in_state_cache_size_; }
-  void set_thread_time_in_state_cache_size(uint32_t value) { thread_time_in_state_cache_size_ = value; _has_field_.set(8); }
-
- private:
-  std::vector<ProcessStatsConfig_Quirks> quirks_;
-  bool scan_all_processes_on_start_{};
-  bool record_thread_names_{};
-  uint32_t proc_stats_poll_ms_{};
-  uint32_t proc_stats_cache_ttl_ms_{};
-  bool record_thread_time_in_state_{};
-  uint32_t thread_time_in_state_cache_size_{};
-
-  // Allows to preserve unknown protobuf fields for compatibility
-  // with future versions of .proto files.
-  std::string unknown_fields_;
-
-  std::bitset<9> _has_field_{};
-};
-
-}  // namespace perfetto
-}  // namespace protos
-}  // namespace gen
-
-#endif  // PERFETTO_PROTOS_PROTOS_PERFETTO_CONFIG_PROCESS_STATS_PROCESS_STATS_CONFIG_PROTO_CPP_H_
-// gen_amalgamated expanded: #include "perfetto/protozero/message.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/packed_repeated_fields.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/proto_decoder.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/scattered_heap_buffer.h"
-// DO NOT EDIT. Autogenerated by Perfetto cppgen_plugin
-#if defined(__GNUC__) || defined(__clang__)
-#pragma GCC diagnostic push
-#pragma GCC diagnostic ignored "-Wfloat-equal"
-#endif
-// gen_amalgamated expanded: #include "protos/perfetto/config/process_stats/process_stats_config.gen.h"
-
-namespace perfetto {
-namespace protos {
-namespace gen {
-
-ProcessStatsConfig::ProcessStatsConfig() = default;
-ProcessStatsConfig::~ProcessStatsConfig() = default;
-ProcessStatsConfig::ProcessStatsConfig(const ProcessStatsConfig&) = default;
-ProcessStatsConfig& ProcessStatsConfig::operator=(const ProcessStatsConfig&) = default;
-ProcessStatsConfig::ProcessStatsConfig(ProcessStatsConfig&&) noexcept = default;
-ProcessStatsConfig& ProcessStatsConfig::operator=(ProcessStatsConfig&&) = default;
-
-bool ProcessStatsConfig::operator==(const ProcessStatsConfig& other) const {
-  return unknown_fields_ == other.unknown_fields_
-   && quirks_ == other.quirks_
-   && scan_all_processes_on_start_ == other.scan_all_processes_on_start_
-   && record_thread_names_ == other.record_thread_names_
-   && proc_stats_poll_ms_ == other.proc_stats_poll_ms_
-   && proc_stats_cache_ttl_ms_ == other.proc_stats_cache_ttl_ms_
-   && record_thread_time_in_state_ == other.record_thread_time_in_state_
-   && thread_time_in_state_cache_size_ == other.thread_time_in_state_cache_size_;
-}
-
-bool ProcessStatsConfig::ParseFromArray(const void* raw, size_t size) {
-  quirks_.clear();
-  unknown_fields_.clear();
-  bool packed_error = false;
-
-  ::protozero::ProtoDecoder dec(raw, size);
-  for (auto field = dec.ReadField(); field.valid(); field = dec.ReadField()) {
-    if (field.id() < _has_field_.size()) {
-      _has_field_.set(field.id());
-    }
-    switch (field.id()) {
-      case 1 /* quirks */:
-        quirks_.emplace_back();
-        field.get(&quirks_.back());
-        break;
-      case 2 /* scan_all_processes_on_start */:
-        field.get(&scan_all_processes_on_start_);
-        break;
-      case 3 /* record_thread_names */:
-        field.get(&record_thread_names_);
-        break;
-      case 4 /* proc_stats_poll_ms */:
-        field.get(&proc_stats_poll_ms_);
-        break;
-      case 6 /* proc_stats_cache_ttl_ms */:
-        field.get(&proc_stats_cache_ttl_ms_);
-        break;
-      case 7 /* record_thread_time_in_state */:
-        field.get(&record_thread_time_in_state_);
-        break;
-      case 8 /* thread_time_in_state_cache_size */:
-        field.get(&thread_time_in_state_cache_size_);
-        break;
-      default:
-        field.SerializeAndAppendTo(&unknown_fields_);
-        break;
-    }
-  }
-  return !packed_error && !dec.bytes_left();
-}
-
-std::string ProcessStatsConfig::SerializeAsString() const {
-  ::protozero::HeapBuffered<::protozero::Message> msg;
-  Serialize(msg.get());
-  return msg.SerializeAsString();
-}
-
-std::vector<uint8_t> ProcessStatsConfig::SerializeAsArray() const {
-  ::protozero::HeapBuffered<::protozero::Message> msg;
-  Serialize(msg.get());
-  return msg.SerializeAsArray();
-}
-
-void ProcessStatsConfig::Serialize(::protozero::Message* msg) const {
-  // Field 1: quirks
-  for (auto& it : quirks_) {
-    msg->AppendVarInt(1, it);
-  }
-
-  // Field 2: scan_all_processes_on_start
-  if (_has_field_[2]) {
-    msg->AppendTinyVarInt(2, scan_all_processes_on_start_);
-  }
-
-  // Field 3: record_thread_names
-  if (_has_field_[3]) {
-    msg->AppendTinyVarInt(3, record_thread_names_);
-  }
-
-  // Field 4: proc_stats_poll_ms
-  if (_has_field_[4]) {
-    msg->AppendVarInt(4, proc_stats_poll_ms_);
-  }
-
-  // Field 6: proc_stats_cache_ttl_ms
-  if (_has_field_[6]) {
-    msg->AppendVarInt(6, proc_stats_cache_ttl_ms_);
-  }
-
-  // Field 7: record_thread_time_in_state
-  if (_has_field_[7]) {
-    msg->AppendTinyVarInt(7, record_thread_time_in_state_);
-  }
-
-  // Field 8: thread_time_in_state_cache_size
-  if (_has_field_[8]) {
-    msg->AppendVarInt(8, thread_time_in_state_cache_size_);
-  }
-
-  msg->AppendRawProtoBytes(unknown_fields_.data(), unknown_fields_.size());
-}
-
-}  // namespace perfetto
-}  // namespace protos
-}  // namespace gen
-#if defined(__GNUC__) || defined(__clang__)
-#pragma GCC diagnostic pop
-#endif
-// gen_amalgamated begin source: gen/protos/perfetto/config/profiling/heapprofd_config.gen.cc
-// gen_amalgamated begin header: gen/protos/perfetto/config/profiling/heapprofd_config.gen.h
-// DO NOT EDIT. Autogenerated by Perfetto cppgen_plugin
-#ifndef PERFETTO_PROTOS_PROTOS_PERFETTO_CONFIG_PROFILING_HEAPPROFD_CONFIG_PROTO_CPP_H_
-#define PERFETTO_PROTOS_PROTOS_PERFETTO_CONFIG_PROFILING_HEAPPROFD_CONFIG_PROTO_CPP_H_
-
-#include <stdint.h>
-#include <bitset>
-#include <vector>
-#include <string>
-#include <type_traits>
-
-// gen_amalgamated expanded: #include "perfetto/protozero/cpp_message_obj.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/copyable_ptr.h"
-// gen_amalgamated expanded: #include "perfetto/base/export.h"
-
-namespace perfetto {
-namespace protos {
-namespace gen {
-class HeapprofdConfig;
-class HeapprofdConfig_ContinuousDumpConfig;
-}  // namespace perfetto
-}  // namespace protos
-}  // namespace gen
-
-namespace protozero {
-class Message;
-}  // namespace protozero
-
-namespace perfetto {
-namespace protos {
-namespace gen {
-
-class PERFETTO_EXPORT HeapprofdConfig : public ::protozero::CppMessageObj {
- public:
-  using ContinuousDumpConfig = HeapprofdConfig_ContinuousDumpConfig;
-  enum FieldNumbers {
-    kSamplingIntervalBytesFieldNumber = 1,
-    kAdaptiveSamplingShmemThresholdFieldNumber = 24,
-    kAdaptiveSamplingMaxSamplingIntervalBytesFieldNumber = 25,
-    kProcessCmdlineFieldNumber = 2,
-    kPidFieldNumber = 4,
-    kTargetInstalledByFieldNumber = 26,
-    kHeapsFieldNumber = 20,
-    kExcludeHeapsFieldNumber = 27,
-    kStreamAllocationsFieldNumber = 23,
-    kHeapSamplingIntervalsFieldNumber = 22,
-    kAllHeapsFieldNumber = 21,
-    kAllFieldNumber = 5,
-    kMinAnonymousMemoryKbFieldNumber = 15,
-    kMaxHeapprofdMemoryKbFieldNumber = 16,
-    kMaxHeapprofdCpuSecsFieldNumber = 17,
-    kSkipSymbolPrefixFieldNumber = 7,
-    kContinuousDumpConfigFieldNumber = 6,
-    kShmemSizeBytesFieldNumber = 8,
-    kBlockClientFieldNumber = 9,
-    kBlockClientTimeoutUsFieldNumber = 14,
-    kNoStartupFieldNumber = 10,
-    kNoRunningFieldNumber = 11,
-    kDumpAtMaxFieldNumber = 13,
-    kDisableForkTeardownFieldNumber = 18,
-    kDisableVforkDetectionFieldNumber = 19,
-  };
-
-  HeapprofdConfig();
-  ~HeapprofdConfig() override;
-  HeapprofdConfig(HeapprofdConfig&&) noexcept;
-  HeapprofdConfig& operator=(HeapprofdConfig&&);
-  HeapprofdConfig(const HeapprofdConfig&);
-  HeapprofdConfig& operator=(const HeapprofdConfig&);
-  bool operator==(const HeapprofdConfig&) const;
-  bool operator!=(const HeapprofdConfig& other) const { return !(*this == other); }
-
-  bool ParseFromArray(const void*, size_t) override;
-  std::string SerializeAsString() const override;
-  std::vector<uint8_t> SerializeAsArray() const override;
-  void Serialize(::protozero::Message*) const;
-
-  bool has_sampling_interval_bytes() const { return _has_field_[1]; }
-  uint64_t sampling_interval_bytes() const { return sampling_interval_bytes_; }
-  void set_sampling_interval_bytes(uint64_t value) { sampling_interval_bytes_ = value; _has_field_.set(1); }
-
-  bool has_adaptive_sampling_shmem_threshold() const { return _has_field_[24]; }
-  uint64_t adaptive_sampling_shmem_threshold() const { return adaptive_sampling_shmem_threshold_; }
-  void set_adaptive_sampling_shmem_threshold(uint64_t value) { adaptive_sampling_shmem_threshold_ = value; _has_field_.set(24); }
-
-  bool has_adaptive_sampling_max_sampling_interval_bytes() const { return _has_field_[25]; }
-  uint64_t adaptive_sampling_max_sampling_interval_bytes() const { return adaptive_sampling_max_sampling_interval_bytes_; }
-  void set_adaptive_sampling_max_sampling_interval_bytes(uint64_t value) { adaptive_sampling_max_sampling_interval_bytes_ = value; _has_field_.set(25); }
-
-  const std::vector<std::string>& process_cmdline() const { return process_cmdline_; }
-  std::vector<std::string>* mutable_process_cmdline() { return &process_cmdline_; }
-  int process_cmdline_size() const { return static_cast<int>(process_cmdline_.size()); }
-  void clear_process_cmdline() { process_cmdline_.clear(); }
-  void add_process_cmdline(std::string value) { process_cmdline_.emplace_back(value); }
-  std::string* add_process_cmdline() { process_cmdline_.emplace_back(); return &process_cmdline_.back(); }
-
-  const std::vector<uint64_t>& pid() const { return pid_; }
-  std::vector<uint64_t>* mutable_pid() { return &pid_; }
-  int pid_size() const { return static_cast<int>(pid_.size()); }
-  void clear_pid() { pid_.clear(); }
-  void add_pid(uint64_t value) { pid_.emplace_back(value); }
-  uint64_t* add_pid() { pid_.emplace_back(); return &pid_.back(); }
-
-  const std::vector<std::string>& target_installed_by() const { return target_installed_by_; }
-  std::vector<std::string>* mutable_target_installed_by() { return &target_installed_by_; }
-  int target_installed_by_size() const { return static_cast<int>(target_installed_by_.size()); }
-  void clear_target_installed_by() { target_installed_by_.clear(); }
-  void add_target_installed_by(std::string value) { target_installed_by_.emplace_back(value); }
-  std::string* add_target_installed_by() { target_installed_by_.emplace_back(); return &target_installed_by_.back(); }
-
-  const std::vector<std::string>& heaps() const { return heaps_; }
-  std::vector<std::string>* mutable_heaps() { return &heaps_; }
-  int heaps_size() const { return static_cast<int>(heaps_.size()); }
-  void clear_heaps() { heaps_.clear(); }
-  void add_heaps(std::string value) { heaps_.emplace_back(value); }
-  std::string* add_heaps() { heaps_.emplace_back(); return &heaps_.back(); }
-
-  const std::vector<std::string>& exclude_heaps() const { return exclude_heaps_; }
-  std::vector<std::string>* mutable_exclude_heaps() { return &exclude_heaps_; }
-  int exclude_heaps_size() const { return static_cast<int>(exclude_heaps_.size()); }
-  void clear_exclude_heaps() { exclude_heaps_.clear(); }
-  void add_exclude_heaps(std::string value) { exclude_heaps_.emplace_back(value); }
-  std::string* add_exclude_heaps() { exclude_heaps_.emplace_back(); return &exclude_heaps_.back(); }
-
-  bool has_stream_allocations() const { return _has_field_[23]; }
-  bool stream_allocations() const { return stream_allocations_; }
-  void set_stream_allocations(bool value) { stream_allocations_ = value; _has_field_.set(23); }
-
-  const std::vector<uint64_t>& heap_sampling_intervals() const { return heap_sampling_intervals_; }
-  std::vector<uint64_t>* mutable_heap_sampling_intervals() { return &heap_sampling_intervals_; }
-  int heap_sampling_intervals_size() const { return static_cast<int>(heap_sampling_intervals_.size()); }
-  void clear_heap_sampling_intervals() { heap_sampling_intervals_.clear(); }
-  void add_heap_sampling_intervals(uint64_t value) { heap_sampling_intervals_.emplace_back(value); }
-  uint64_t* add_heap_sampling_intervals() { heap_sampling_intervals_.emplace_back(); return &heap_sampling_intervals_.back(); }
-
-  bool has_all_heaps() const { return _has_field_[21]; }
-  bool all_heaps() const { return all_heaps_; }
-  void set_all_heaps(bool value) { all_heaps_ = value; _has_field_.set(21); }
-
-  bool has_all() const { return _has_field_[5]; }
-  bool all() const { return all_; }
-  void set_all(bool value) { all_ = value; _has_field_.set(5); }
-
-  bool has_min_anonymous_memory_kb() const { return _has_field_[15]; }
-  uint32_t min_anonymous_memory_kb() const { return min_anonymous_memory_kb_; }
-  void set_min_anonymous_memory_kb(uint32_t value) { min_anonymous_memory_kb_ = value; _has_field_.set(15); }
-
-  bool has_max_heapprofd_memory_kb() const { return _has_field_[16]; }
-  uint32_t max_heapprofd_memory_kb() const { return max_heapprofd_memory_kb_; }
-  void set_max_heapprofd_memory_kb(uint32_t value) { max_heapprofd_memory_kb_ = value; _has_field_.set(16); }
-
-  bool has_max_heapprofd_cpu_secs() const { return _has_field_[17]; }
-  uint64_t max_heapprofd_cpu_secs() const { return max_heapprofd_cpu_secs_; }
-  void set_max_heapprofd_cpu_secs(uint64_t value) { max_heapprofd_cpu_secs_ = value; _has_field_.set(17); }
-
-  const std::vector<std::string>& skip_symbol_prefix() const { return skip_symbol_prefix_; }
-  std::vector<std::string>* mutable_skip_symbol_prefix() { return &skip_symbol_prefix_; }
-  int skip_symbol_prefix_size() const { return static_cast<int>(skip_symbol_prefix_.size()); }
-  void clear_skip_symbol_prefix() { skip_symbol_prefix_.clear(); }
-  void add_skip_symbol_prefix(std::string value) { skip_symbol_prefix_.emplace_back(value); }
-  std::string* add_skip_symbol_prefix() { skip_symbol_prefix_.emplace_back(); return &skip_symbol_prefix_.back(); }
-
-  bool has_continuous_dump_config() const { return _has_field_[6]; }
-  const HeapprofdConfig_ContinuousDumpConfig& continuous_dump_config() const { return *continuous_dump_config_; }
-  HeapprofdConfig_ContinuousDumpConfig* mutable_continuous_dump_config() { _has_field_.set(6); return continuous_dump_config_.get(); }
-
-  bool has_shmem_size_bytes() const { return _has_field_[8]; }
-  uint64_t shmem_size_bytes() const { return shmem_size_bytes_; }
-  void set_shmem_size_bytes(uint64_t value) { shmem_size_bytes_ = value; _has_field_.set(8); }
-
-  bool has_block_client() const { return _has_field_[9]; }
-  bool block_client() const { return block_client_; }
-  void set_block_client(bool value) { block_client_ = value; _has_field_.set(9); }
-
-  bool has_block_client_timeout_us() const { return _has_field_[14]; }
-  uint32_t block_client_timeout_us() const { return block_client_timeout_us_; }
-  void set_block_client_timeout_us(uint32_t value) { block_client_timeout_us_ = value; _has_field_.set(14); }
-
-  bool has_no_startup() const { return _has_field_[10]; }
-  bool no_startup() const { return no_startup_; }
-  void set_no_startup(bool value) { no_startup_ = value; _has_field_.set(10); }
-
-  bool has_no_running() const { return _has_field_[11]; }
-  bool no_running() const { return no_running_; }
-  void set_no_running(bool value) { no_running_ = value; _has_field_.set(11); }
-
-  bool has_dump_at_max() const { return _has_field_[13]; }
-  bool dump_at_max() const { return dump_at_max_; }
-  void set_dump_at_max(bool value) { dump_at_max_ = value; _has_field_.set(13); }
-
-  bool has_disable_fork_teardown() const { return _has_field_[18]; }
-  bool disable_fork_teardown() const { return disable_fork_teardown_; }
-  void set_disable_fork_teardown(bool value) { disable_fork_teardown_ = value; _has_field_.set(18); }
-
-  bool has_disable_vfork_detection() const { return _has_field_[19]; }
-  bool disable_vfork_detection() const { return disable_vfork_detection_; }
-  void set_disable_vfork_detection(bool value) { disable_vfork_detection_ = value; _has_field_.set(19); }
-
- private:
-  uint64_t sampling_interval_bytes_{};
-  uint64_t adaptive_sampling_shmem_threshold_{};
-  uint64_t adaptive_sampling_max_sampling_interval_bytes_{};
-  std::vector<std::string> process_cmdline_;
-  std::vector<uint64_t> pid_;
-  std::vector<std::string> target_installed_by_;
-  std::vector<std::string> heaps_;
-  std::vector<std::string> exclude_heaps_;
-  bool stream_allocations_{};
-  std::vector<uint64_t> heap_sampling_intervals_;
-  bool all_heaps_{};
-  bool all_{};
-  uint32_t min_anonymous_memory_kb_{};
-  uint32_t max_heapprofd_memory_kb_{};
-  uint64_t max_heapprofd_cpu_secs_{};
-  std::vector<std::string> skip_symbol_prefix_;
-  ::protozero::CopyablePtr<HeapprofdConfig_ContinuousDumpConfig> continuous_dump_config_;
-  uint64_t shmem_size_bytes_{};
-  bool block_client_{};
-  uint32_t block_client_timeout_us_{};
-  bool no_startup_{};
-  bool no_running_{};
-  bool dump_at_max_{};
-  bool disable_fork_teardown_{};
-  bool disable_vfork_detection_{};
-
-  // Allows to preserve unknown protobuf fields for compatibility
-  // with future versions of .proto files.
-  std::string unknown_fields_;
-
-  std::bitset<28> _has_field_{};
-};
-
-
-class PERFETTO_EXPORT HeapprofdConfig_ContinuousDumpConfig : public ::protozero::CppMessageObj {
- public:
-  enum FieldNumbers {
-    kDumpPhaseMsFieldNumber = 5,
-    kDumpIntervalMsFieldNumber = 6,
-  };
-
-  HeapprofdConfig_ContinuousDumpConfig();
-  ~HeapprofdConfig_ContinuousDumpConfig() override;
-  HeapprofdConfig_ContinuousDumpConfig(HeapprofdConfig_ContinuousDumpConfig&&) noexcept;
-  HeapprofdConfig_ContinuousDumpConfig& operator=(HeapprofdConfig_ContinuousDumpConfig&&);
-  HeapprofdConfig_ContinuousDumpConfig(const HeapprofdConfig_ContinuousDumpConfig&);
-  HeapprofdConfig_ContinuousDumpConfig& operator=(const HeapprofdConfig_ContinuousDumpConfig&);
-  bool operator==(const HeapprofdConfig_ContinuousDumpConfig&) const;
-  bool operator!=(const HeapprofdConfig_ContinuousDumpConfig& other) const { return !(*this == other); }
-
-  bool ParseFromArray(const void*, size_t) override;
-  std::string SerializeAsString() const override;
-  std::vector<uint8_t> SerializeAsArray() const override;
-  void Serialize(::protozero::Message*) const;
-
-  bool has_dump_phase_ms() const { return _has_field_[5]; }
-  uint32_t dump_phase_ms() const { return dump_phase_ms_; }
-  void set_dump_phase_ms(uint32_t value) { dump_phase_ms_ = value; _has_field_.set(5); }
-
-  bool has_dump_interval_ms() const { return _has_field_[6]; }
-  uint32_t dump_interval_ms() const { return dump_interval_ms_; }
-  void set_dump_interval_ms(uint32_t value) { dump_interval_ms_ = value; _has_field_.set(6); }
-
- private:
-  uint32_t dump_phase_ms_{};
-  uint32_t dump_interval_ms_{};
-
-  // Allows to preserve unknown protobuf fields for compatibility
-  // with future versions of .proto files.
-  std::string unknown_fields_;
-
-  std::bitset<7> _has_field_{};
-};
-
-}  // namespace perfetto
-}  // namespace protos
-}  // namespace gen
-
-#endif  // PERFETTO_PROTOS_PROTOS_PERFETTO_CONFIG_PROFILING_HEAPPROFD_CONFIG_PROTO_CPP_H_
-// gen_amalgamated expanded: #include "perfetto/protozero/message.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/packed_repeated_fields.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/proto_decoder.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/scattered_heap_buffer.h"
-// DO NOT EDIT. Autogenerated by Perfetto cppgen_plugin
-#if defined(__GNUC__) || defined(__clang__)
-#pragma GCC diagnostic push
-#pragma GCC diagnostic ignored "-Wfloat-equal"
-#endif
-// gen_amalgamated expanded: #include "protos/perfetto/config/profiling/heapprofd_config.gen.h"
-
-namespace perfetto {
-namespace protos {
-namespace gen {
-
-HeapprofdConfig::HeapprofdConfig() = default;
-HeapprofdConfig::~HeapprofdConfig() = default;
-HeapprofdConfig::HeapprofdConfig(const HeapprofdConfig&) = default;
-HeapprofdConfig& HeapprofdConfig::operator=(const HeapprofdConfig&) = default;
-HeapprofdConfig::HeapprofdConfig(HeapprofdConfig&&) noexcept = default;
-HeapprofdConfig& HeapprofdConfig::operator=(HeapprofdConfig&&) = default;
-
-bool HeapprofdConfig::operator==(const HeapprofdConfig& other) const {
-  return unknown_fields_ == other.unknown_fields_
-   && sampling_interval_bytes_ == other.sampling_interval_bytes_
-   && adaptive_sampling_shmem_threshold_ == other.adaptive_sampling_shmem_threshold_
-   && adaptive_sampling_max_sampling_interval_bytes_ == other.adaptive_sampling_max_sampling_interval_bytes_
-   && process_cmdline_ == other.process_cmdline_
-   && pid_ == other.pid_
-   && target_installed_by_ == other.target_installed_by_
-   && heaps_ == other.heaps_
-   && exclude_heaps_ == other.exclude_heaps_
-   && stream_allocations_ == other.stream_allocations_
-   && heap_sampling_intervals_ == other.heap_sampling_intervals_
-   && all_heaps_ == other.all_heaps_
-   && all_ == other.all_
-   && min_anonymous_memory_kb_ == other.min_anonymous_memory_kb_
-   && max_heapprofd_memory_kb_ == other.max_heapprofd_memory_kb_
-   && max_heapprofd_cpu_secs_ == other.max_heapprofd_cpu_secs_
-   && skip_symbol_prefix_ == other.skip_symbol_prefix_
-   && continuous_dump_config_ == other.continuous_dump_config_
-   && shmem_size_bytes_ == other.shmem_size_bytes_
-   && block_client_ == other.block_client_
-   && block_client_timeout_us_ == other.block_client_timeout_us_
-   && no_startup_ == other.no_startup_
-   && no_running_ == other.no_running_
-   && dump_at_max_ == other.dump_at_max_
-   && disable_fork_teardown_ == other.disable_fork_teardown_
-   && disable_vfork_detection_ == other.disable_vfork_detection_;
-}
-
-bool HeapprofdConfig::ParseFromArray(const void* raw, size_t size) {
-  process_cmdline_.clear();
-  pid_.clear();
-  target_installed_by_.clear();
-  heaps_.clear();
-  exclude_heaps_.clear();
-  heap_sampling_intervals_.clear();
-  skip_symbol_prefix_.clear();
-  unknown_fields_.clear();
-  bool packed_error = false;
-
-  ::protozero::ProtoDecoder dec(raw, size);
-  for (auto field = dec.ReadField(); field.valid(); field = dec.ReadField()) {
-    if (field.id() < _has_field_.size()) {
-      _has_field_.set(field.id());
-    }
-    switch (field.id()) {
-      case 1 /* sampling_interval_bytes */:
-        field.get(&sampling_interval_bytes_);
-        break;
-      case 24 /* adaptive_sampling_shmem_threshold */:
-        field.get(&adaptive_sampling_shmem_threshold_);
-        break;
-      case 25 /* adaptive_sampling_max_sampling_interval_bytes */:
-        field.get(&adaptive_sampling_max_sampling_interval_bytes_);
-        break;
-      case 2 /* process_cmdline */:
-        process_cmdline_.emplace_back();
-        field.get(&process_cmdline_.back());
-        break;
-      case 4 /* pid */:
-        pid_.emplace_back();
-        field.get(&pid_.back());
-        break;
-      case 26 /* target_installed_by */:
-        target_installed_by_.emplace_back();
-        field.get(&target_installed_by_.back());
-        break;
-      case 20 /* heaps */:
-        heaps_.emplace_back();
-        field.get(&heaps_.back());
-        break;
-      case 27 /* exclude_heaps */:
-        exclude_heaps_.emplace_back();
-        field.get(&exclude_heaps_.back());
-        break;
-      case 23 /* stream_allocations */:
-        field.get(&stream_allocations_);
-        break;
-      case 22 /* heap_sampling_intervals */:
-        heap_sampling_intervals_.emplace_back();
-        field.get(&heap_sampling_intervals_.back());
-        break;
-      case 21 /* all_heaps */:
-        field.get(&all_heaps_);
-        break;
-      case 5 /* all */:
-        field.get(&all_);
-        break;
-      case 15 /* min_anonymous_memory_kb */:
-        field.get(&min_anonymous_memory_kb_);
-        break;
-      case 16 /* max_heapprofd_memory_kb */:
-        field.get(&max_heapprofd_memory_kb_);
-        break;
-      case 17 /* max_heapprofd_cpu_secs */:
-        field.get(&max_heapprofd_cpu_secs_);
-        break;
-      case 7 /* skip_symbol_prefix */:
-        skip_symbol_prefix_.emplace_back();
-        field.get(&skip_symbol_prefix_.back());
-        break;
-      case 6 /* continuous_dump_config */:
-        (*continuous_dump_config_).ParseFromArray(field.data(), field.size());
-        break;
-      case 8 /* shmem_size_bytes */:
-        field.get(&shmem_size_bytes_);
-        break;
-      case 9 /* block_client */:
-        field.get(&block_client_);
-        break;
-      case 14 /* block_client_timeout_us */:
-        field.get(&block_client_timeout_us_);
-        break;
-      case 10 /* no_startup */:
-        field.get(&no_startup_);
-        break;
-      case 11 /* no_running */:
-        field.get(&no_running_);
-        break;
-      case 13 /* dump_at_max */:
-        field.get(&dump_at_max_);
-        break;
-      case 18 /* disable_fork_teardown */:
-        field.get(&disable_fork_teardown_);
-        break;
-      case 19 /* disable_vfork_detection */:
-        field.get(&disable_vfork_detection_);
-        break;
-      default:
-        field.SerializeAndAppendTo(&unknown_fields_);
-        break;
-    }
-  }
-  return !packed_error && !dec.bytes_left();
-}
-
-std::string HeapprofdConfig::SerializeAsString() const {
-  ::protozero::HeapBuffered<::protozero::Message> msg;
-  Serialize(msg.get());
-  return msg.SerializeAsString();
-}
-
-std::vector<uint8_t> HeapprofdConfig::SerializeAsArray() const {
-  ::protozero::HeapBuffered<::protozero::Message> msg;
-  Serialize(msg.get());
-  return msg.SerializeAsArray();
-}
-
-void HeapprofdConfig::Serialize(::protozero::Message* msg) const {
-  // Field 1: sampling_interval_bytes
-  if (_has_field_[1]) {
-    msg->AppendVarInt(1, sampling_interval_bytes_);
-  }
-
-  // Field 24: adaptive_sampling_shmem_threshold
-  if (_has_field_[24]) {
-    msg->AppendVarInt(24, adaptive_sampling_shmem_threshold_);
-  }
-
-  // Field 25: adaptive_sampling_max_sampling_interval_bytes
-  if (_has_field_[25]) {
-    msg->AppendVarInt(25, adaptive_sampling_max_sampling_interval_bytes_);
-  }
-
-  // Field 2: process_cmdline
-  for (auto& it : process_cmdline_) {
-    msg->AppendString(2, it);
-  }
-
-  // Field 4: pid
-  for (auto& it : pid_) {
-    msg->AppendVarInt(4, it);
-  }
-
-  // Field 26: target_installed_by
-  for (auto& it : target_installed_by_) {
-    msg->AppendString(26, it);
-  }
-
-  // Field 20: heaps
-  for (auto& it : heaps_) {
-    msg->AppendString(20, it);
-  }
-
-  // Field 27: exclude_heaps
-  for (auto& it : exclude_heaps_) {
-    msg->AppendString(27, it);
-  }
-
-  // Field 23: stream_allocations
-  if (_has_field_[23]) {
-    msg->AppendTinyVarInt(23, stream_allocations_);
-  }
-
-  // Field 22: heap_sampling_intervals
-  for (auto& it : heap_sampling_intervals_) {
-    msg->AppendVarInt(22, it);
-  }
-
-  // Field 21: all_heaps
-  if (_has_field_[21]) {
-    msg->AppendTinyVarInt(21, all_heaps_);
-  }
-
-  // Field 5: all
-  if (_has_field_[5]) {
-    msg->AppendTinyVarInt(5, all_);
-  }
-
-  // Field 15: min_anonymous_memory_kb
-  if (_has_field_[15]) {
-    msg->AppendVarInt(15, min_anonymous_memory_kb_);
-  }
-
-  // Field 16: max_heapprofd_memory_kb
-  if (_has_field_[16]) {
-    msg->AppendVarInt(16, max_heapprofd_memory_kb_);
-  }
-
-  // Field 17: max_heapprofd_cpu_secs
-  if (_has_field_[17]) {
-    msg->AppendVarInt(17, max_heapprofd_cpu_secs_);
-  }
-
-  // Field 7: skip_symbol_prefix
-  for (auto& it : skip_symbol_prefix_) {
-    msg->AppendString(7, it);
-  }
-
-  // Field 6: continuous_dump_config
-  if (_has_field_[6]) {
-    (*continuous_dump_config_).Serialize(msg->BeginNestedMessage<::protozero::Message>(6));
-  }
-
-  // Field 8: shmem_size_bytes
-  if (_has_field_[8]) {
-    msg->AppendVarInt(8, shmem_size_bytes_);
-  }
-
-  // Field 9: block_client
-  if (_has_field_[9]) {
-    msg->AppendTinyVarInt(9, block_client_);
-  }
-
-  // Field 14: block_client_timeout_us
-  if (_has_field_[14]) {
-    msg->AppendVarInt(14, block_client_timeout_us_);
-  }
-
-  // Field 10: no_startup
-  if (_has_field_[10]) {
-    msg->AppendTinyVarInt(10, no_startup_);
-  }
-
-  // Field 11: no_running
-  if (_has_field_[11]) {
-    msg->AppendTinyVarInt(11, no_running_);
-  }
-
-  // Field 13: dump_at_max
-  if (_has_field_[13]) {
-    msg->AppendTinyVarInt(13, dump_at_max_);
-  }
-
-  // Field 18: disable_fork_teardown
-  if (_has_field_[18]) {
-    msg->AppendTinyVarInt(18, disable_fork_teardown_);
-  }
-
-  // Field 19: disable_vfork_detection
-  if (_has_field_[19]) {
-    msg->AppendTinyVarInt(19, disable_vfork_detection_);
-  }
-
-  msg->AppendRawProtoBytes(unknown_fields_.data(), unknown_fields_.size());
-}
-
-
-HeapprofdConfig_ContinuousDumpConfig::HeapprofdConfig_ContinuousDumpConfig() = default;
-HeapprofdConfig_ContinuousDumpConfig::~HeapprofdConfig_ContinuousDumpConfig() = default;
-HeapprofdConfig_ContinuousDumpConfig::HeapprofdConfig_ContinuousDumpConfig(const HeapprofdConfig_ContinuousDumpConfig&) = default;
-HeapprofdConfig_ContinuousDumpConfig& HeapprofdConfig_ContinuousDumpConfig::operator=(const HeapprofdConfig_ContinuousDumpConfig&) = default;
-HeapprofdConfig_ContinuousDumpConfig::HeapprofdConfig_ContinuousDumpConfig(HeapprofdConfig_ContinuousDumpConfig&&) noexcept = default;
-HeapprofdConfig_ContinuousDumpConfig& HeapprofdConfig_ContinuousDumpConfig::operator=(HeapprofdConfig_ContinuousDumpConfig&&) = default;
-
-bool HeapprofdConfig_ContinuousDumpConfig::operator==(const HeapprofdConfig_ContinuousDumpConfig& other) const {
-  return unknown_fields_ == other.unknown_fields_
-   && dump_phase_ms_ == other.dump_phase_ms_
-   && dump_interval_ms_ == other.dump_interval_ms_;
-}
-
-bool HeapprofdConfig_ContinuousDumpConfig::ParseFromArray(const void* raw, size_t size) {
-  unknown_fields_.clear();
-  bool packed_error = false;
-
-  ::protozero::ProtoDecoder dec(raw, size);
-  for (auto field = dec.ReadField(); field.valid(); field = dec.ReadField()) {
-    if (field.id() < _has_field_.size()) {
-      _has_field_.set(field.id());
-    }
-    switch (field.id()) {
-      case 5 /* dump_phase_ms */:
-        field.get(&dump_phase_ms_);
-        break;
-      case 6 /* dump_interval_ms */:
-        field.get(&dump_interval_ms_);
-        break;
-      default:
-        field.SerializeAndAppendTo(&unknown_fields_);
-        break;
-    }
-  }
-  return !packed_error && !dec.bytes_left();
-}
-
-std::string HeapprofdConfig_ContinuousDumpConfig::SerializeAsString() const {
-  ::protozero::HeapBuffered<::protozero::Message> msg;
-  Serialize(msg.get());
-  return msg.SerializeAsString();
-}
-
-std::vector<uint8_t> HeapprofdConfig_ContinuousDumpConfig::SerializeAsArray() const {
-  ::protozero::HeapBuffered<::protozero::Message> msg;
-  Serialize(msg.get());
-  return msg.SerializeAsArray();
-}
-
-void HeapprofdConfig_ContinuousDumpConfig::Serialize(::protozero::Message* msg) const {
-  // Field 5: dump_phase_ms
-  if (_has_field_[5]) {
-    msg->AppendVarInt(5, dump_phase_ms_);
-  }
-
-  // Field 6: dump_interval_ms
-  if (_has_field_[6]) {
-    msg->AppendVarInt(6, dump_interval_ms_);
-  }
-
-  msg->AppendRawProtoBytes(unknown_fields_.data(), unknown_fields_.size());
-}
-
-}  // namespace perfetto
-}  // namespace protos
-}  // namespace gen
-#if defined(__GNUC__) || defined(__clang__)
-#pragma GCC diagnostic pop
-#endif
-// gen_amalgamated begin source: gen/protos/perfetto/config/profiling/java_hprof_config.gen.cc
-// gen_amalgamated begin header: gen/protos/perfetto/config/profiling/java_hprof_config.gen.h
-// DO NOT EDIT. Autogenerated by Perfetto cppgen_plugin
-#ifndef PERFETTO_PROTOS_PROTOS_PERFETTO_CONFIG_PROFILING_JAVA_HPROF_CONFIG_PROTO_CPP_H_
-#define PERFETTO_PROTOS_PROTOS_PERFETTO_CONFIG_PROFILING_JAVA_HPROF_CONFIG_PROTO_CPP_H_
-
-#include <stdint.h>
-#include <bitset>
-#include <vector>
-#include <string>
-#include <type_traits>
-
-// gen_amalgamated expanded: #include "perfetto/protozero/cpp_message_obj.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/copyable_ptr.h"
-// gen_amalgamated expanded: #include "perfetto/base/export.h"
-
-namespace perfetto {
-namespace protos {
-namespace gen {
-class JavaHprofConfig;
-class JavaHprofConfig_ContinuousDumpConfig;
-}  // namespace perfetto
-}  // namespace protos
-}  // namespace gen
-
-namespace protozero {
-class Message;
-}  // namespace protozero
-
-namespace perfetto {
-namespace protos {
-namespace gen {
-
-class PERFETTO_EXPORT JavaHprofConfig : public ::protozero::CppMessageObj {
- public:
-  using ContinuousDumpConfig = JavaHprofConfig_ContinuousDumpConfig;
-  enum FieldNumbers {
-    kProcessCmdlineFieldNumber = 1,
-    kPidFieldNumber = 2,
-    kTargetInstalledByFieldNumber = 7,
-    kContinuousDumpConfigFieldNumber = 3,
-    kMinAnonymousMemoryKbFieldNumber = 4,
-    kDumpSmapsFieldNumber = 5,
-    kIgnoredTypesFieldNumber = 6,
-  };
-
-  JavaHprofConfig();
-  ~JavaHprofConfig() override;
-  JavaHprofConfig(JavaHprofConfig&&) noexcept;
-  JavaHprofConfig& operator=(JavaHprofConfig&&);
-  JavaHprofConfig(const JavaHprofConfig&);
-  JavaHprofConfig& operator=(const JavaHprofConfig&);
-  bool operator==(const JavaHprofConfig&) const;
-  bool operator!=(const JavaHprofConfig& other) const { return !(*this == other); }
-
-  bool ParseFromArray(const void*, size_t) override;
-  std::string SerializeAsString() const override;
-  std::vector<uint8_t> SerializeAsArray() const override;
-  void Serialize(::protozero::Message*) const;
-
-  const std::vector<std::string>& process_cmdline() const { return process_cmdline_; }
-  std::vector<std::string>* mutable_process_cmdline() { return &process_cmdline_; }
-  int process_cmdline_size() const { return static_cast<int>(process_cmdline_.size()); }
-  void clear_process_cmdline() { process_cmdline_.clear(); }
-  void add_process_cmdline(std::string value) { process_cmdline_.emplace_back(value); }
-  std::string* add_process_cmdline() { process_cmdline_.emplace_back(); return &process_cmdline_.back(); }
-
-  const std::vector<uint64_t>& pid() const { return pid_; }
-  std::vector<uint64_t>* mutable_pid() { return &pid_; }
-  int pid_size() const { return static_cast<int>(pid_.size()); }
-  void clear_pid() { pid_.clear(); }
-  void add_pid(uint64_t value) { pid_.emplace_back(value); }
-  uint64_t* add_pid() { pid_.emplace_back(); return &pid_.back(); }
-
-  const std::vector<std::string>& target_installed_by() const { return target_installed_by_; }
-  std::vector<std::string>* mutable_target_installed_by() { return &target_installed_by_; }
-  int target_installed_by_size() const { return static_cast<int>(target_installed_by_.size()); }
-  void clear_target_installed_by() { target_installed_by_.clear(); }
-  void add_target_installed_by(std::string value) { target_installed_by_.emplace_back(value); }
-  std::string* add_target_installed_by() { target_installed_by_.emplace_back(); return &target_installed_by_.back(); }
-
-  bool has_continuous_dump_config() const { return _has_field_[3]; }
-  const JavaHprofConfig_ContinuousDumpConfig& continuous_dump_config() const { return *continuous_dump_config_; }
-  JavaHprofConfig_ContinuousDumpConfig* mutable_continuous_dump_config() { _has_field_.set(3); return continuous_dump_config_.get(); }
-
-  bool has_min_anonymous_memory_kb() const { return _has_field_[4]; }
-  uint32_t min_anonymous_memory_kb() const { return min_anonymous_memory_kb_; }
-  void set_min_anonymous_memory_kb(uint32_t value) { min_anonymous_memory_kb_ = value; _has_field_.set(4); }
-
-  bool has_dump_smaps() const { return _has_field_[5]; }
-  bool dump_smaps() const { return dump_smaps_; }
-  void set_dump_smaps(bool value) { dump_smaps_ = value; _has_field_.set(5); }
-
-  const std::vector<std::string>& ignored_types() const { return ignored_types_; }
-  std::vector<std::string>* mutable_ignored_types() { return &ignored_types_; }
-  int ignored_types_size() const { return static_cast<int>(ignored_types_.size()); }
-  void clear_ignored_types() { ignored_types_.clear(); }
-  void add_ignored_types(std::string value) { ignored_types_.emplace_back(value); }
-  std::string* add_ignored_types() { ignored_types_.emplace_back(); return &ignored_types_.back(); }
-
- private:
-  std::vector<std::string> process_cmdline_;
-  std::vector<uint64_t> pid_;
-  std::vector<std::string> target_installed_by_;
-  ::protozero::CopyablePtr<JavaHprofConfig_ContinuousDumpConfig> continuous_dump_config_;
-  uint32_t min_anonymous_memory_kb_{};
-  bool dump_smaps_{};
-  std::vector<std::string> ignored_types_;
-
-  // Allows to preserve unknown protobuf fields for compatibility
-  // with future versions of .proto files.
-  std::string unknown_fields_;
-
-  std::bitset<8> _has_field_{};
-};
-
-
-class PERFETTO_EXPORT JavaHprofConfig_ContinuousDumpConfig : public ::protozero::CppMessageObj {
- public:
-  enum FieldNumbers {
-    kDumpPhaseMsFieldNumber = 1,
-    kDumpIntervalMsFieldNumber = 2,
-  };
-
-  JavaHprofConfig_ContinuousDumpConfig();
-  ~JavaHprofConfig_ContinuousDumpConfig() override;
-  JavaHprofConfig_ContinuousDumpConfig(JavaHprofConfig_ContinuousDumpConfig&&) noexcept;
-  JavaHprofConfig_ContinuousDumpConfig& operator=(JavaHprofConfig_ContinuousDumpConfig&&);
-  JavaHprofConfig_ContinuousDumpConfig(const JavaHprofConfig_ContinuousDumpConfig&);
-  JavaHprofConfig_ContinuousDumpConfig& operator=(const JavaHprofConfig_ContinuousDumpConfig&);
-  bool operator==(const JavaHprofConfig_ContinuousDumpConfig&) const;
-  bool operator!=(const JavaHprofConfig_ContinuousDumpConfig& other) const { return !(*this == other); }
-
-  bool ParseFromArray(const void*, size_t) override;
-  std::string SerializeAsString() const override;
-  std::vector<uint8_t> SerializeAsArray() const override;
-  void Serialize(::protozero::Message*) const;
-
-  bool has_dump_phase_ms() const { return _has_field_[1]; }
-  uint32_t dump_phase_ms() const { return dump_phase_ms_; }
-  void set_dump_phase_ms(uint32_t value) { dump_phase_ms_ = value; _has_field_.set(1); }
-
-  bool has_dump_interval_ms() const { return _has_field_[2]; }
-  uint32_t dump_interval_ms() const { return dump_interval_ms_; }
-  void set_dump_interval_ms(uint32_t value) { dump_interval_ms_ = value; _has_field_.set(2); }
-
- private:
-  uint32_t dump_phase_ms_{};
-  uint32_t dump_interval_ms_{};
-
-  // Allows to preserve unknown protobuf fields for compatibility
-  // with future versions of .proto files.
-  std::string unknown_fields_;
-
-  std::bitset<3> _has_field_{};
-};
-
-}  // namespace perfetto
-}  // namespace protos
-}  // namespace gen
-
-#endif  // PERFETTO_PROTOS_PROTOS_PERFETTO_CONFIG_PROFILING_JAVA_HPROF_CONFIG_PROTO_CPP_H_
-// gen_amalgamated expanded: #include "perfetto/protozero/message.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/packed_repeated_fields.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/proto_decoder.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/scattered_heap_buffer.h"
-// DO NOT EDIT. Autogenerated by Perfetto cppgen_plugin
-#if defined(__GNUC__) || defined(__clang__)
-#pragma GCC diagnostic push
-#pragma GCC diagnostic ignored "-Wfloat-equal"
-#endif
-// gen_amalgamated expanded: #include "protos/perfetto/config/profiling/java_hprof_config.gen.h"
-
-namespace perfetto {
-namespace protos {
-namespace gen {
-
-JavaHprofConfig::JavaHprofConfig() = default;
-JavaHprofConfig::~JavaHprofConfig() = default;
-JavaHprofConfig::JavaHprofConfig(const JavaHprofConfig&) = default;
-JavaHprofConfig& JavaHprofConfig::operator=(const JavaHprofConfig&) = default;
-JavaHprofConfig::JavaHprofConfig(JavaHprofConfig&&) noexcept = default;
-JavaHprofConfig& JavaHprofConfig::operator=(JavaHprofConfig&&) = default;
-
-bool JavaHprofConfig::operator==(const JavaHprofConfig& other) const {
-  return unknown_fields_ == other.unknown_fields_
-   && process_cmdline_ == other.process_cmdline_
-   && pid_ == other.pid_
-   && target_installed_by_ == other.target_installed_by_
-   && continuous_dump_config_ == other.continuous_dump_config_
-   && min_anonymous_memory_kb_ == other.min_anonymous_memory_kb_
-   && dump_smaps_ == other.dump_smaps_
-   && ignored_types_ == other.ignored_types_;
-}
-
-bool JavaHprofConfig::ParseFromArray(const void* raw, size_t size) {
-  process_cmdline_.clear();
-  pid_.clear();
-  target_installed_by_.clear();
-  ignored_types_.clear();
-  unknown_fields_.clear();
-  bool packed_error = false;
-
-  ::protozero::ProtoDecoder dec(raw, size);
-  for (auto field = dec.ReadField(); field.valid(); field = dec.ReadField()) {
-    if (field.id() < _has_field_.size()) {
-      _has_field_.set(field.id());
-    }
-    switch (field.id()) {
-      case 1 /* process_cmdline */:
-        process_cmdline_.emplace_back();
-        field.get(&process_cmdline_.back());
-        break;
-      case 2 /* pid */:
-        pid_.emplace_back();
-        field.get(&pid_.back());
-        break;
-      case 7 /* target_installed_by */:
-        target_installed_by_.emplace_back();
-        field.get(&target_installed_by_.back());
-        break;
-      case 3 /* continuous_dump_config */:
-        (*continuous_dump_config_).ParseFromArray(field.data(), field.size());
-        break;
-      case 4 /* min_anonymous_memory_kb */:
-        field.get(&min_anonymous_memory_kb_);
-        break;
-      case 5 /* dump_smaps */:
-        field.get(&dump_smaps_);
-        break;
-      case 6 /* ignored_types */:
-        ignored_types_.emplace_back();
-        field.get(&ignored_types_.back());
-        break;
-      default:
-        field.SerializeAndAppendTo(&unknown_fields_);
-        break;
-    }
-  }
-  return !packed_error && !dec.bytes_left();
-}
-
-std::string JavaHprofConfig::SerializeAsString() const {
-  ::protozero::HeapBuffered<::protozero::Message> msg;
-  Serialize(msg.get());
-  return msg.SerializeAsString();
-}
-
-std::vector<uint8_t> JavaHprofConfig::SerializeAsArray() const {
-  ::protozero::HeapBuffered<::protozero::Message> msg;
-  Serialize(msg.get());
-  return msg.SerializeAsArray();
-}
-
-void JavaHprofConfig::Serialize(::protozero::Message* msg) const {
-  // Field 1: process_cmdline
-  for (auto& it : process_cmdline_) {
-    msg->AppendString(1, it);
-  }
-
-  // Field 2: pid
-  for (auto& it : pid_) {
-    msg->AppendVarInt(2, it);
-  }
-
-  // Field 7: target_installed_by
-  for (auto& it : target_installed_by_) {
-    msg->AppendString(7, it);
-  }
-
-  // Field 3: continuous_dump_config
-  if (_has_field_[3]) {
-    (*continuous_dump_config_).Serialize(msg->BeginNestedMessage<::protozero::Message>(3));
-  }
-
-  // Field 4: min_anonymous_memory_kb
-  if (_has_field_[4]) {
-    msg->AppendVarInt(4, min_anonymous_memory_kb_);
-  }
-
-  // Field 5: dump_smaps
-  if (_has_field_[5]) {
-    msg->AppendTinyVarInt(5, dump_smaps_);
-  }
-
-  // Field 6: ignored_types
-  for (auto& it : ignored_types_) {
-    msg->AppendString(6, it);
-  }
-
-  msg->AppendRawProtoBytes(unknown_fields_.data(), unknown_fields_.size());
-}
-
-
-JavaHprofConfig_ContinuousDumpConfig::JavaHprofConfig_ContinuousDumpConfig() = default;
-JavaHprofConfig_ContinuousDumpConfig::~JavaHprofConfig_ContinuousDumpConfig() = default;
-JavaHprofConfig_ContinuousDumpConfig::JavaHprofConfig_ContinuousDumpConfig(const JavaHprofConfig_ContinuousDumpConfig&) = default;
-JavaHprofConfig_ContinuousDumpConfig& JavaHprofConfig_ContinuousDumpConfig::operator=(const JavaHprofConfig_ContinuousDumpConfig&) = default;
-JavaHprofConfig_ContinuousDumpConfig::JavaHprofConfig_ContinuousDumpConfig(JavaHprofConfig_ContinuousDumpConfig&&) noexcept = default;
-JavaHprofConfig_ContinuousDumpConfig& JavaHprofConfig_ContinuousDumpConfig::operator=(JavaHprofConfig_ContinuousDumpConfig&&) = default;
-
-bool JavaHprofConfig_ContinuousDumpConfig::operator==(const JavaHprofConfig_ContinuousDumpConfig& other) const {
-  return unknown_fields_ == other.unknown_fields_
-   && dump_phase_ms_ == other.dump_phase_ms_
-   && dump_interval_ms_ == other.dump_interval_ms_;
-}
-
-bool JavaHprofConfig_ContinuousDumpConfig::ParseFromArray(const void* raw, size_t size) {
-  unknown_fields_.clear();
-  bool packed_error = false;
-
-  ::protozero::ProtoDecoder dec(raw, size);
-  for (auto field = dec.ReadField(); field.valid(); field = dec.ReadField()) {
-    if (field.id() < _has_field_.size()) {
-      _has_field_.set(field.id());
-    }
-    switch (field.id()) {
-      case 1 /* dump_phase_ms */:
-        field.get(&dump_phase_ms_);
-        break;
-      case 2 /* dump_interval_ms */:
-        field.get(&dump_interval_ms_);
-        break;
-      default:
-        field.SerializeAndAppendTo(&unknown_fields_);
-        break;
-    }
-  }
-  return !packed_error && !dec.bytes_left();
-}
-
-std::string JavaHprofConfig_ContinuousDumpConfig::SerializeAsString() const {
-  ::protozero::HeapBuffered<::protozero::Message> msg;
-  Serialize(msg.get());
-  return msg.SerializeAsString();
-}
-
-std::vector<uint8_t> JavaHprofConfig_ContinuousDumpConfig::SerializeAsArray() const {
-  ::protozero::HeapBuffered<::protozero::Message> msg;
-  Serialize(msg.get());
-  return msg.SerializeAsArray();
-}
-
-void JavaHprofConfig_ContinuousDumpConfig::Serialize(::protozero::Message* msg) const {
-  // Field 1: dump_phase_ms
-  if (_has_field_[1]) {
-    msg->AppendVarInt(1, dump_phase_ms_);
-  }
-
-  // Field 2: dump_interval_ms
-  if (_has_field_[2]) {
-    msg->AppendVarInt(2, dump_interval_ms_);
-  }
-
-  msg->AppendRawProtoBytes(unknown_fields_.data(), unknown_fields_.size());
-}
-
-}  // namespace perfetto
-}  // namespace protos
-}  // namespace gen
-#if defined(__GNUC__) || defined(__clang__)
-#pragma GCC diagnostic pop
-#endif
-// gen_amalgamated begin source: gen/protos/perfetto/config/profiling/perf_event_config.gen.cc
-// gen_amalgamated begin header: gen/protos/perfetto/config/profiling/perf_event_config.gen.h
-// DO NOT EDIT. Autogenerated by Perfetto cppgen_plugin
-#ifndef PERFETTO_PROTOS_PROTOS_PERFETTO_CONFIG_PROFILING_PERF_EVENT_CONFIG_PROTO_CPP_H_
-#define PERFETTO_PROTOS_PROTOS_PERFETTO_CONFIG_PROFILING_PERF_EVENT_CONFIG_PROTO_CPP_H_
-
-#include <stdint.h>
-#include <bitset>
-#include <vector>
-#include <string>
-#include <type_traits>
-
-// gen_amalgamated expanded: #include "perfetto/protozero/cpp_message_obj.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/copyable_ptr.h"
-// gen_amalgamated expanded: #include "perfetto/base/export.h"
-
-namespace perfetto {
-namespace protos {
-namespace gen {
-class PerfEventConfig;
-class PerfEventConfig_CallstackSampling;
-class PerfEventConfig_Scope;
-class PerfEvents_Timebase;
-class PerfEvents_Tracepoint;
-enum PerfEvents_Counter : int;
-}  // namespace perfetto
-}  // namespace protos
-}  // namespace gen
-
-namespace protozero {
-class Message;
-}  // namespace protozero
-
-namespace perfetto {
-namespace protos {
-namespace gen {
-
-class PERFETTO_EXPORT PerfEventConfig : public ::protozero::CppMessageObj {
- public:
-  using CallstackSampling = PerfEventConfig_CallstackSampling;
-  using Scope = PerfEventConfig_Scope;
-  enum FieldNumbers {
-    kTimebaseFieldNumber = 15,
-    kCallstackSamplingFieldNumber = 16,
-    kRingBufferReadPeriodMsFieldNumber = 8,
-    kRingBufferPagesFieldNumber = 3,
-    kMaxEnqueuedFootprintKbFieldNumber = 17,
-    kMaxDaemonMemoryKbFieldNumber = 13,
-    kRemoteDescriptorTimeoutMsFieldNumber = 9,
-    kUnwindStateClearPeriodMsFieldNumber = 10,
-    kAllCpusFieldNumber = 1,
-    kSamplingFrequencyFieldNumber = 2,
-    kKernelFramesFieldNumber = 12,
-    kTargetPidFieldNumber = 4,
-    kTargetCmdlineFieldNumber = 5,
-    kTargetInstalledByFieldNumber = 18,
-    kExcludePidFieldNumber = 6,
-    kExcludeCmdlineFieldNumber = 7,
-    kAdditionalCmdlineCountFieldNumber = 11,
-  };
-
-  PerfEventConfig();
-  ~PerfEventConfig() override;
-  PerfEventConfig(PerfEventConfig&&) noexcept;
-  PerfEventConfig& operator=(PerfEventConfig&&);
-  PerfEventConfig(const PerfEventConfig&);
-  PerfEventConfig& operator=(const PerfEventConfig&);
-  bool operator==(const PerfEventConfig&) const;
-  bool operator!=(const PerfEventConfig& other) const { return !(*this == other); }
-
-  bool ParseFromArray(const void*, size_t) override;
-  std::string SerializeAsString() const override;
-  std::vector<uint8_t> SerializeAsArray() const override;
-  void Serialize(::protozero::Message*) const;
-
-  bool has_timebase() const { return _has_field_[15]; }
-  const PerfEvents_Timebase& timebase() const { return *timebase_; }
-  PerfEvents_Timebase* mutable_timebase() { _has_field_.set(15); return timebase_.get(); }
-
-  bool has_callstack_sampling() const { return _has_field_[16]; }
-  const PerfEventConfig_CallstackSampling& callstack_sampling() const { return *callstack_sampling_; }
-  PerfEventConfig_CallstackSampling* mutable_callstack_sampling() { _has_field_.set(16); return callstack_sampling_.get(); }
-
-  bool has_ring_buffer_read_period_ms() const { return _has_field_[8]; }
-  uint32_t ring_buffer_read_period_ms() const { return ring_buffer_read_period_ms_; }
-  void set_ring_buffer_read_period_ms(uint32_t value) { ring_buffer_read_period_ms_ = value; _has_field_.set(8); }
-
-  bool has_ring_buffer_pages() const { return _has_field_[3]; }
-  uint32_t ring_buffer_pages() const { return ring_buffer_pages_; }
-  void set_ring_buffer_pages(uint32_t value) { ring_buffer_pages_ = value; _has_field_.set(3); }
-
-  bool has_max_enqueued_footprint_kb() const { return _has_field_[17]; }
-  uint64_t max_enqueued_footprint_kb() const { return max_enqueued_footprint_kb_; }
-  void set_max_enqueued_footprint_kb(uint64_t value) { max_enqueued_footprint_kb_ = value; _has_field_.set(17); }
-
-  bool has_max_daemon_memory_kb() const { return _has_field_[13]; }
-  uint32_t max_daemon_memory_kb() const { return max_daemon_memory_kb_; }
-  void set_max_daemon_memory_kb(uint32_t value) { max_daemon_memory_kb_ = value; _has_field_.set(13); }
-
-  bool has_remote_descriptor_timeout_ms() const { return _has_field_[9]; }
-  uint32_t remote_descriptor_timeout_ms() const { return remote_descriptor_timeout_ms_; }
-  void set_remote_descriptor_timeout_ms(uint32_t value) { remote_descriptor_timeout_ms_ = value; _has_field_.set(9); }
-
-  bool has_unwind_state_clear_period_ms() const { return _has_field_[10]; }
-  uint32_t unwind_state_clear_period_ms() const { return unwind_state_clear_period_ms_; }
-  void set_unwind_state_clear_period_ms(uint32_t value) { unwind_state_clear_period_ms_ = value; _has_field_.set(10); }
-
-  bool has_all_cpus() const { return _has_field_[1]; }
-  bool all_cpus() const { return all_cpus_; }
-  void set_all_cpus(bool value) { all_cpus_ = value; _has_field_.set(1); }
-
-  bool has_sampling_frequency() const { return _has_field_[2]; }
-  uint32_t sampling_frequency() const { return sampling_frequency_; }
-  void set_sampling_frequency(uint32_t value) { sampling_frequency_ = value; _has_field_.set(2); }
-
-  bool has_kernel_frames() const { return _has_field_[12]; }
-  bool kernel_frames() const { return kernel_frames_; }
-  void set_kernel_frames(bool value) { kernel_frames_ = value; _has_field_.set(12); }
-
-  const std::vector<int32_t>& target_pid() const { return target_pid_; }
-  std::vector<int32_t>* mutable_target_pid() { return &target_pid_; }
-  int target_pid_size() const { return static_cast<int>(target_pid_.size()); }
-  void clear_target_pid() { target_pid_.clear(); }
-  void add_target_pid(int32_t value) { target_pid_.emplace_back(value); }
-  int32_t* add_target_pid() { target_pid_.emplace_back(); return &target_pid_.back(); }
-
-  const std::vector<std::string>& target_cmdline() const { return target_cmdline_; }
-  std::vector<std::string>* mutable_target_cmdline() { return &target_cmdline_; }
-  int target_cmdline_size() const { return static_cast<int>(target_cmdline_.size()); }
-  void clear_target_cmdline() { target_cmdline_.clear(); }
-  void add_target_cmdline(std::string value) { target_cmdline_.emplace_back(value); }
-  std::string* add_target_cmdline() { target_cmdline_.emplace_back(); return &target_cmdline_.back(); }
-
-  const std::vector<std::string>& target_installed_by() const { return target_installed_by_; }
-  std::vector<std::string>* mutable_target_installed_by() { return &target_installed_by_; }
-  int target_installed_by_size() const { return static_cast<int>(target_installed_by_.size()); }
-  void clear_target_installed_by() { target_installed_by_.clear(); }
-  void add_target_installed_by(std::string value) { target_installed_by_.emplace_back(value); }
-  std::string* add_target_installed_by() { target_installed_by_.emplace_back(); return &target_installed_by_.back(); }
-
-  const std::vector<int32_t>& exclude_pid() const { return exclude_pid_; }
-  std::vector<int32_t>* mutable_exclude_pid() { return &exclude_pid_; }
-  int exclude_pid_size() const { return static_cast<int>(exclude_pid_.size()); }
-  void clear_exclude_pid() { exclude_pid_.clear(); }
-  void add_exclude_pid(int32_t value) { exclude_pid_.emplace_back(value); }
-  int32_t* add_exclude_pid() { exclude_pid_.emplace_back(); return &exclude_pid_.back(); }
-
-  const std::vector<std::string>& exclude_cmdline() const { return exclude_cmdline_; }
-  std::vector<std::string>* mutable_exclude_cmdline() { return &exclude_cmdline_; }
-  int exclude_cmdline_size() const { return static_cast<int>(exclude_cmdline_.size()); }
-  void clear_exclude_cmdline() { exclude_cmdline_.clear(); }
-  void add_exclude_cmdline(std::string value) { exclude_cmdline_.emplace_back(value); }
-  std::string* add_exclude_cmdline() { exclude_cmdline_.emplace_back(); return &exclude_cmdline_.back(); }
-
-  bool has_additional_cmdline_count() const { return _has_field_[11]; }
-  uint32_t additional_cmdline_count() const { return additional_cmdline_count_; }
-  void set_additional_cmdline_count(uint32_t value) { additional_cmdline_count_ = value; _has_field_.set(11); }
-
- private:
-  ::protozero::CopyablePtr<PerfEvents_Timebase> timebase_;
-  ::protozero::CopyablePtr<PerfEventConfig_CallstackSampling> callstack_sampling_;
-  uint32_t ring_buffer_read_period_ms_{};
-  uint32_t ring_buffer_pages_{};
-  uint64_t max_enqueued_footprint_kb_{};
-  uint32_t max_daemon_memory_kb_{};
-  uint32_t remote_descriptor_timeout_ms_{};
-  uint32_t unwind_state_clear_period_ms_{};
-  bool all_cpus_{};
-  uint32_t sampling_frequency_{};
-  bool kernel_frames_{};
-  std::vector<int32_t> target_pid_;
-  std::vector<std::string> target_cmdline_;
-  std::vector<std::string> target_installed_by_;
-  std::vector<int32_t> exclude_pid_;
-  std::vector<std::string> exclude_cmdline_;
-  uint32_t additional_cmdline_count_{};
-
-  // Allows to preserve unknown protobuf fields for compatibility
-  // with future versions of .proto files.
-  std::string unknown_fields_;
-
-  std::bitset<19> _has_field_{};
-};
-
-
-class PERFETTO_EXPORT PerfEventConfig_CallstackSampling : public ::protozero::CppMessageObj {
- public:
-  enum FieldNumbers {
-    kScopeFieldNumber = 1,
-    kKernelFramesFieldNumber = 2,
-  };
-
-  PerfEventConfig_CallstackSampling();
-  ~PerfEventConfig_CallstackSampling() override;
-  PerfEventConfig_CallstackSampling(PerfEventConfig_CallstackSampling&&) noexcept;
-  PerfEventConfig_CallstackSampling& operator=(PerfEventConfig_CallstackSampling&&);
-  PerfEventConfig_CallstackSampling(const PerfEventConfig_CallstackSampling&);
-  PerfEventConfig_CallstackSampling& operator=(const PerfEventConfig_CallstackSampling&);
-  bool operator==(const PerfEventConfig_CallstackSampling&) const;
-  bool operator!=(const PerfEventConfig_CallstackSampling& other) const { return !(*this == other); }
-
-  bool ParseFromArray(const void*, size_t) override;
-  std::string SerializeAsString() const override;
-  std::vector<uint8_t> SerializeAsArray() const override;
-  void Serialize(::protozero::Message*) const;
-
-  bool has_scope() const { return _has_field_[1]; }
-  const PerfEventConfig_Scope& scope() const { return *scope_; }
-  PerfEventConfig_Scope* mutable_scope() { _has_field_.set(1); return scope_.get(); }
-
-  bool has_kernel_frames() const { return _has_field_[2]; }
-  bool kernel_frames() const { return kernel_frames_; }
-  void set_kernel_frames(bool value) { kernel_frames_ = value; _has_field_.set(2); }
-
- private:
-  ::protozero::CopyablePtr<PerfEventConfig_Scope> scope_;
-  bool kernel_frames_{};
-
-  // Allows to preserve unknown protobuf fields for compatibility
-  // with future versions of .proto files.
-  std::string unknown_fields_;
-
-  std::bitset<3> _has_field_{};
-};
-
-
-class PERFETTO_EXPORT PerfEventConfig_Scope : public ::protozero::CppMessageObj {
- public:
-  enum FieldNumbers {
-    kTargetPidFieldNumber = 1,
-    kTargetCmdlineFieldNumber = 2,
-    kExcludePidFieldNumber = 3,
-    kExcludeCmdlineFieldNumber = 4,
-    kAdditionalCmdlineCountFieldNumber = 5,
-  };
-
-  PerfEventConfig_Scope();
-  ~PerfEventConfig_Scope() override;
-  PerfEventConfig_Scope(PerfEventConfig_Scope&&) noexcept;
-  PerfEventConfig_Scope& operator=(PerfEventConfig_Scope&&);
-  PerfEventConfig_Scope(const PerfEventConfig_Scope&);
-  PerfEventConfig_Scope& operator=(const PerfEventConfig_Scope&);
-  bool operator==(const PerfEventConfig_Scope&) const;
-  bool operator!=(const PerfEventConfig_Scope& other) const { return !(*this == other); }
-
-  bool ParseFromArray(const void*, size_t) override;
-  std::string SerializeAsString() const override;
-  std::vector<uint8_t> SerializeAsArray() const override;
-  void Serialize(::protozero::Message*) const;
-
-  const std::vector<int32_t>& target_pid() const { return target_pid_; }
-  std::vector<int32_t>* mutable_target_pid() { return &target_pid_; }
-  int target_pid_size() const { return static_cast<int>(target_pid_.size()); }
-  void clear_target_pid() { target_pid_.clear(); }
-  void add_target_pid(int32_t value) { target_pid_.emplace_back(value); }
-  int32_t* add_target_pid() { target_pid_.emplace_back(); return &target_pid_.back(); }
-
-  const std::vector<std::string>& target_cmdline() const { return target_cmdline_; }
-  std::vector<std::string>* mutable_target_cmdline() { return &target_cmdline_; }
-  int target_cmdline_size() const { return static_cast<int>(target_cmdline_.size()); }
-  void clear_target_cmdline() { target_cmdline_.clear(); }
-  void add_target_cmdline(std::string value) { target_cmdline_.emplace_back(value); }
-  std::string* add_target_cmdline() { target_cmdline_.emplace_back(); return &target_cmdline_.back(); }
-
-  const std::vector<int32_t>& exclude_pid() const { return exclude_pid_; }
-  std::vector<int32_t>* mutable_exclude_pid() { return &exclude_pid_; }
-  int exclude_pid_size() const { return static_cast<int>(exclude_pid_.size()); }
-  void clear_exclude_pid() { exclude_pid_.clear(); }
-  void add_exclude_pid(int32_t value) { exclude_pid_.emplace_back(value); }
-  int32_t* add_exclude_pid() { exclude_pid_.emplace_back(); return &exclude_pid_.back(); }
-
-  const std::vector<std::string>& exclude_cmdline() const { return exclude_cmdline_; }
-  std::vector<std::string>* mutable_exclude_cmdline() { return &exclude_cmdline_; }
-  int exclude_cmdline_size() const { return static_cast<int>(exclude_cmdline_.size()); }
-  void clear_exclude_cmdline() { exclude_cmdline_.clear(); }
-  void add_exclude_cmdline(std::string value) { exclude_cmdline_.emplace_back(value); }
-  std::string* add_exclude_cmdline() { exclude_cmdline_.emplace_back(); return &exclude_cmdline_.back(); }
-
-  bool has_additional_cmdline_count() const { return _has_field_[5]; }
-  uint32_t additional_cmdline_count() const { return additional_cmdline_count_; }
-  void set_additional_cmdline_count(uint32_t value) { additional_cmdline_count_ = value; _has_field_.set(5); }
-
- private:
-  std::vector<int32_t> target_pid_;
-  std::vector<std::string> target_cmdline_;
-  std::vector<int32_t> exclude_pid_;
-  std::vector<std::string> exclude_cmdline_;
-  uint32_t additional_cmdline_count_{};
-
-  // Allows to preserve unknown protobuf fields for compatibility
-  // with future versions of .proto files.
-  std::string unknown_fields_;
-
-  std::bitset<6> _has_field_{};
-};
-
-}  // namespace perfetto
-}  // namespace protos
-}  // namespace gen
-
-#endif  // PERFETTO_PROTOS_PROTOS_PERFETTO_CONFIG_PROFILING_PERF_EVENT_CONFIG_PROTO_CPP_H_
-// gen_amalgamated expanded: #include "perfetto/protozero/message.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/packed_repeated_fields.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/proto_decoder.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/scattered_heap_buffer.h"
-// DO NOT EDIT. Autogenerated by Perfetto cppgen_plugin
-#if defined(__GNUC__) || defined(__clang__)
-#pragma GCC diagnostic push
-#pragma GCC diagnostic ignored "-Wfloat-equal"
-#endif
-// gen_amalgamated expanded: #include "protos/perfetto/config/profiling/perf_event_config.gen.h"
-// gen_amalgamated expanded: #include "protos/perfetto/common/perf_events.gen.h"
-
-namespace perfetto {
-namespace protos {
-namespace gen {
-
-PerfEventConfig::PerfEventConfig() = default;
-PerfEventConfig::~PerfEventConfig() = default;
-PerfEventConfig::PerfEventConfig(const PerfEventConfig&) = default;
-PerfEventConfig& PerfEventConfig::operator=(const PerfEventConfig&) = default;
-PerfEventConfig::PerfEventConfig(PerfEventConfig&&) noexcept = default;
-PerfEventConfig& PerfEventConfig::operator=(PerfEventConfig&&) = default;
-
-bool PerfEventConfig::operator==(const PerfEventConfig& other) const {
-  return unknown_fields_ == other.unknown_fields_
-   && timebase_ == other.timebase_
-   && callstack_sampling_ == other.callstack_sampling_
-   && ring_buffer_read_period_ms_ == other.ring_buffer_read_period_ms_
-   && ring_buffer_pages_ == other.ring_buffer_pages_
-   && max_enqueued_footprint_kb_ == other.max_enqueued_footprint_kb_
-   && max_daemon_memory_kb_ == other.max_daemon_memory_kb_
-   && remote_descriptor_timeout_ms_ == other.remote_descriptor_timeout_ms_
-   && unwind_state_clear_period_ms_ == other.unwind_state_clear_period_ms_
-   && all_cpus_ == other.all_cpus_
-   && sampling_frequency_ == other.sampling_frequency_
-   && kernel_frames_ == other.kernel_frames_
-   && target_pid_ == other.target_pid_
-   && target_cmdline_ == other.target_cmdline_
-   && target_installed_by_ == other.target_installed_by_
-   && exclude_pid_ == other.exclude_pid_
-   && exclude_cmdline_ == other.exclude_cmdline_
-   && additional_cmdline_count_ == other.additional_cmdline_count_;
-}
-
-bool PerfEventConfig::ParseFromArray(const void* raw, size_t size) {
-  target_pid_.clear();
-  target_cmdline_.clear();
-  target_installed_by_.clear();
-  exclude_pid_.clear();
-  exclude_cmdline_.clear();
-  unknown_fields_.clear();
-  bool packed_error = false;
-
-  ::protozero::ProtoDecoder dec(raw, size);
-  for (auto field = dec.ReadField(); field.valid(); field = dec.ReadField()) {
-    if (field.id() < _has_field_.size()) {
-      _has_field_.set(field.id());
-    }
-    switch (field.id()) {
-      case 15 /* timebase */:
-        (*timebase_).ParseFromArray(field.data(), field.size());
-        break;
-      case 16 /* callstack_sampling */:
-        (*callstack_sampling_).ParseFromArray(field.data(), field.size());
-        break;
-      case 8 /* ring_buffer_read_period_ms */:
-        field.get(&ring_buffer_read_period_ms_);
-        break;
-      case 3 /* ring_buffer_pages */:
-        field.get(&ring_buffer_pages_);
-        break;
-      case 17 /* max_enqueued_footprint_kb */:
-        field.get(&max_enqueued_footprint_kb_);
-        break;
-      case 13 /* max_daemon_memory_kb */:
-        field.get(&max_daemon_memory_kb_);
-        break;
-      case 9 /* remote_descriptor_timeout_ms */:
-        field.get(&remote_descriptor_timeout_ms_);
-        break;
-      case 10 /* unwind_state_clear_period_ms */:
-        field.get(&unwind_state_clear_period_ms_);
-        break;
-      case 1 /* all_cpus */:
-        field.get(&all_cpus_);
-        break;
-      case 2 /* sampling_frequency */:
-        field.get(&sampling_frequency_);
-        break;
-      case 12 /* kernel_frames */:
-        field.get(&kernel_frames_);
-        break;
-      case 4 /* target_pid */:
-        target_pid_.emplace_back();
-        field.get(&target_pid_.back());
-        break;
-      case 5 /* target_cmdline */:
-        target_cmdline_.emplace_back();
-        field.get(&target_cmdline_.back());
-        break;
-      case 18 /* target_installed_by */:
-        target_installed_by_.emplace_back();
-        field.get(&target_installed_by_.back());
-        break;
-      case 6 /* exclude_pid */:
-        exclude_pid_.emplace_back();
-        field.get(&exclude_pid_.back());
-        break;
-      case 7 /* exclude_cmdline */:
-        exclude_cmdline_.emplace_back();
-        field.get(&exclude_cmdline_.back());
-        break;
-      case 11 /* additional_cmdline_count */:
-        field.get(&additional_cmdline_count_);
-        break;
-      default:
-        field.SerializeAndAppendTo(&unknown_fields_);
-        break;
-    }
-  }
-  return !packed_error && !dec.bytes_left();
-}
-
-std::string PerfEventConfig::SerializeAsString() const {
-  ::protozero::HeapBuffered<::protozero::Message> msg;
-  Serialize(msg.get());
-  return msg.SerializeAsString();
-}
-
-std::vector<uint8_t> PerfEventConfig::SerializeAsArray() const {
-  ::protozero::HeapBuffered<::protozero::Message> msg;
-  Serialize(msg.get());
-  return msg.SerializeAsArray();
-}
-
-void PerfEventConfig::Serialize(::protozero::Message* msg) const {
-  // Field 15: timebase
-  if (_has_field_[15]) {
-    (*timebase_).Serialize(msg->BeginNestedMessage<::protozero::Message>(15));
-  }
-
-  // Field 16: callstack_sampling
-  if (_has_field_[16]) {
-    (*callstack_sampling_).Serialize(msg->BeginNestedMessage<::protozero::Message>(16));
-  }
-
-  // Field 8: ring_buffer_read_period_ms
-  if (_has_field_[8]) {
-    msg->AppendVarInt(8, ring_buffer_read_period_ms_);
-  }
-
-  // Field 3: ring_buffer_pages
-  if (_has_field_[3]) {
-    msg->AppendVarInt(3, ring_buffer_pages_);
-  }
-
-  // Field 17: max_enqueued_footprint_kb
-  if (_has_field_[17]) {
-    msg->AppendVarInt(17, max_enqueued_footprint_kb_);
-  }
-
-  // Field 13: max_daemon_memory_kb
-  if (_has_field_[13]) {
-    msg->AppendVarInt(13, max_daemon_memory_kb_);
-  }
-
-  // Field 9: remote_descriptor_timeout_ms
-  if (_has_field_[9]) {
-    msg->AppendVarInt(9, remote_descriptor_timeout_ms_);
-  }
-
-  // Field 10: unwind_state_clear_period_ms
-  if (_has_field_[10]) {
-    msg->AppendVarInt(10, unwind_state_clear_period_ms_);
-  }
-
-  // Field 1: all_cpus
-  if (_has_field_[1]) {
-    msg->AppendTinyVarInt(1, all_cpus_);
-  }
-
-  // Field 2: sampling_frequency
-  if (_has_field_[2]) {
-    msg->AppendVarInt(2, sampling_frequency_);
-  }
-
-  // Field 12: kernel_frames
-  if (_has_field_[12]) {
-    msg->AppendTinyVarInt(12, kernel_frames_);
-  }
-
-  // Field 4: target_pid
-  for (auto& it : target_pid_) {
-    msg->AppendVarInt(4, it);
-  }
-
-  // Field 5: target_cmdline
-  for (auto& it : target_cmdline_) {
-    msg->AppendString(5, it);
-  }
-
-  // Field 18: target_installed_by
-  for (auto& it : target_installed_by_) {
-    msg->AppendString(18, it);
-  }
-
-  // Field 6: exclude_pid
-  for (auto& it : exclude_pid_) {
-    msg->AppendVarInt(6, it);
-  }
-
-  // Field 7: exclude_cmdline
-  for (auto& it : exclude_cmdline_) {
-    msg->AppendString(7, it);
-  }
-
-  // Field 11: additional_cmdline_count
-  if (_has_field_[11]) {
-    msg->AppendVarInt(11, additional_cmdline_count_);
-  }
-
-  msg->AppendRawProtoBytes(unknown_fields_.data(), unknown_fields_.size());
-}
-
-
-PerfEventConfig_CallstackSampling::PerfEventConfig_CallstackSampling() = default;
-PerfEventConfig_CallstackSampling::~PerfEventConfig_CallstackSampling() = default;
-PerfEventConfig_CallstackSampling::PerfEventConfig_CallstackSampling(const PerfEventConfig_CallstackSampling&) = default;
-PerfEventConfig_CallstackSampling& PerfEventConfig_CallstackSampling::operator=(const PerfEventConfig_CallstackSampling&) = default;
-PerfEventConfig_CallstackSampling::PerfEventConfig_CallstackSampling(PerfEventConfig_CallstackSampling&&) noexcept = default;
-PerfEventConfig_CallstackSampling& PerfEventConfig_CallstackSampling::operator=(PerfEventConfig_CallstackSampling&&) = default;
-
-bool PerfEventConfig_CallstackSampling::operator==(const PerfEventConfig_CallstackSampling& other) const {
-  return unknown_fields_ == other.unknown_fields_
-   && scope_ == other.scope_
-   && kernel_frames_ == other.kernel_frames_;
-}
-
-bool PerfEventConfig_CallstackSampling::ParseFromArray(const void* raw, size_t size) {
-  unknown_fields_.clear();
-  bool packed_error = false;
-
-  ::protozero::ProtoDecoder dec(raw, size);
-  for (auto field = dec.ReadField(); field.valid(); field = dec.ReadField()) {
-    if (field.id() < _has_field_.size()) {
-      _has_field_.set(field.id());
-    }
-    switch (field.id()) {
-      case 1 /* scope */:
-        (*scope_).ParseFromArray(field.data(), field.size());
-        break;
-      case 2 /* kernel_frames */:
-        field.get(&kernel_frames_);
-        break;
-      default:
-        field.SerializeAndAppendTo(&unknown_fields_);
-        break;
-    }
-  }
-  return !packed_error && !dec.bytes_left();
-}
-
-std::string PerfEventConfig_CallstackSampling::SerializeAsString() const {
-  ::protozero::HeapBuffered<::protozero::Message> msg;
-  Serialize(msg.get());
-  return msg.SerializeAsString();
-}
-
-std::vector<uint8_t> PerfEventConfig_CallstackSampling::SerializeAsArray() const {
-  ::protozero::HeapBuffered<::protozero::Message> msg;
-  Serialize(msg.get());
-  return msg.SerializeAsArray();
-}
-
-void PerfEventConfig_CallstackSampling::Serialize(::protozero::Message* msg) const {
-  // Field 1: scope
-  if (_has_field_[1]) {
-    (*scope_).Serialize(msg->BeginNestedMessage<::protozero::Message>(1));
-  }
-
-  // Field 2: kernel_frames
-  if (_has_field_[2]) {
-    msg->AppendTinyVarInt(2, kernel_frames_);
-  }
-
-  msg->AppendRawProtoBytes(unknown_fields_.data(), unknown_fields_.size());
-}
-
-
-PerfEventConfig_Scope::PerfEventConfig_Scope() = default;
-PerfEventConfig_Scope::~PerfEventConfig_Scope() = default;
-PerfEventConfig_Scope::PerfEventConfig_Scope(const PerfEventConfig_Scope&) = default;
-PerfEventConfig_Scope& PerfEventConfig_Scope::operator=(const PerfEventConfig_Scope&) = default;
-PerfEventConfig_Scope::PerfEventConfig_Scope(PerfEventConfig_Scope&&) noexcept = default;
-PerfEventConfig_Scope& PerfEventConfig_Scope::operator=(PerfEventConfig_Scope&&) = default;
-
-bool PerfEventConfig_Scope::operator==(const PerfEventConfig_Scope& other) const {
-  return unknown_fields_ == other.unknown_fields_
-   && target_pid_ == other.target_pid_
-   && target_cmdline_ == other.target_cmdline_
-   && exclude_pid_ == other.exclude_pid_
-   && exclude_cmdline_ == other.exclude_cmdline_
-   && additional_cmdline_count_ == other.additional_cmdline_count_;
-}
-
-bool PerfEventConfig_Scope::ParseFromArray(const void* raw, size_t size) {
-  target_pid_.clear();
-  target_cmdline_.clear();
-  exclude_pid_.clear();
-  exclude_cmdline_.clear();
-  unknown_fields_.clear();
-  bool packed_error = false;
-
-  ::protozero::ProtoDecoder dec(raw, size);
-  for (auto field = dec.ReadField(); field.valid(); field = dec.ReadField()) {
-    if (field.id() < _has_field_.size()) {
-      _has_field_.set(field.id());
-    }
-    switch (field.id()) {
-      case 1 /* target_pid */:
-        target_pid_.emplace_back();
-        field.get(&target_pid_.back());
-        break;
-      case 2 /* target_cmdline */:
-        target_cmdline_.emplace_back();
-        field.get(&target_cmdline_.back());
-        break;
-      case 3 /* exclude_pid */:
-        exclude_pid_.emplace_back();
-        field.get(&exclude_pid_.back());
-        break;
-      case 4 /* exclude_cmdline */:
-        exclude_cmdline_.emplace_back();
-        field.get(&exclude_cmdline_.back());
-        break;
-      case 5 /* additional_cmdline_count */:
-        field.get(&additional_cmdline_count_);
-        break;
-      default:
-        field.SerializeAndAppendTo(&unknown_fields_);
-        break;
-    }
-  }
-  return !packed_error && !dec.bytes_left();
-}
-
-std::string PerfEventConfig_Scope::SerializeAsString() const {
-  ::protozero::HeapBuffered<::protozero::Message> msg;
-  Serialize(msg.get());
-  return msg.SerializeAsString();
-}
-
-std::vector<uint8_t> PerfEventConfig_Scope::SerializeAsArray() const {
-  ::protozero::HeapBuffered<::protozero::Message> msg;
-  Serialize(msg.get());
-  return msg.SerializeAsArray();
-}
-
-void PerfEventConfig_Scope::Serialize(::protozero::Message* msg) const {
-  // Field 1: target_pid
-  for (auto& it : target_pid_) {
-    msg->AppendVarInt(1, it);
-  }
-
-  // Field 2: target_cmdline
-  for (auto& it : target_cmdline_) {
-    msg->AppendString(2, it);
-  }
-
-  // Field 3: exclude_pid
-  for (auto& it : exclude_pid_) {
-    msg->AppendVarInt(3, it);
-  }
-
-  // Field 4: exclude_cmdline
-  for (auto& it : exclude_cmdline_) {
-    msg->AppendString(4, it);
-  }
-
-  // Field 5: additional_cmdline_count
-  if (_has_field_[5]) {
-    msg->AppendVarInt(5, additional_cmdline_count_);
-  }
-
-  msg->AppendRawProtoBytes(unknown_fields_.data(), unknown_fields_.size());
-}
-
-}  // namespace perfetto
-}  // namespace protos
-}  // namespace gen
-#if defined(__GNUC__) || defined(__clang__)
-#pragma GCC diagnostic pop
-#endif
-// gen_amalgamated begin source: gen/protos/perfetto/config/sys_stats/sys_stats_config.gen.cc
-// gen_amalgamated begin header: gen/protos/perfetto/config/sys_stats/sys_stats_config.gen.h
-// DO NOT EDIT. Autogenerated by Perfetto cppgen_plugin
-#ifndef PERFETTO_PROTOS_PROTOS_PERFETTO_CONFIG_SYS_STATS_SYS_STATS_CONFIG_PROTO_CPP_H_
-#define PERFETTO_PROTOS_PROTOS_PERFETTO_CONFIG_SYS_STATS_SYS_STATS_CONFIG_PROTO_CPP_H_
-
-#include <stdint.h>
-#include <bitset>
-#include <vector>
-#include <string>
-#include <type_traits>
-
-// gen_amalgamated expanded: #include "perfetto/protozero/cpp_message_obj.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/copyable_ptr.h"
-// gen_amalgamated expanded: #include "perfetto/base/export.h"
-
-namespace perfetto {
-namespace protos {
-namespace gen {
-class SysStatsConfig;
-enum SysStatsConfig_StatCounters : int;
-enum MeminfoCounters : int;
-enum VmstatCounters : int;
-}  // namespace perfetto
-}  // namespace protos
-}  // namespace gen
-
-namespace protozero {
-class Message;
-}  // namespace protozero
-
-namespace perfetto {
-namespace protos {
-namespace gen {
-enum SysStatsConfig_StatCounters : int {
-  SysStatsConfig_StatCounters_STAT_UNSPECIFIED = 0,
-  SysStatsConfig_StatCounters_STAT_CPU_TIMES = 1,
-  SysStatsConfig_StatCounters_STAT_IRQ_COUNTS = 2,
-  SysStatsConfig_StatCounters_STAT_SOFTIRQ_COUNTS = 3,
-  SysStatsConfig_StatCounters_STAT_FORK_COUNT = 4,
-};
-
-class PERFETTO_EXPORT SysStatsConfig : public ::protozero::CppMessageObj {
- public:
-  using StatCounters = SysStatsConfig_StatCounters;
-  static constexpr auto STAT_UNSPECIFIED = SysStatsConfig_StatCounters_STAT_UNSPECIFIED;
-  static constexpr auto STAT_CPU_TIMES = SysStatsConfig_StatCounters_STAT_CPU_TIMES;
-  static constexpr auto STAT_IRQ_COUNTS = SysStatsConfig_StatCounters_STAT_IRQ_COUNTS;
-  static constexpr auto STAT_SOFTIRQ_COUNTS = SysStatsConfig_StatCounters_STAT_SOFTIRQ_COUNTS;
-  static constexpr auto STAT_FORK_COUNT = SysStatsConfig_StatCounters_STAT_FORK_COUNT;
-  static constexpr auto StatCounters_MIN = SysStatsConfig_StatCounters_STAT_UNSPECIFIED;
-  static constexpr auto StatCounters_MAX = SysStatsConfig_StatCounters_STAT_FORK_COUNT;
-  enum FieldNumbers {
-    kMeminfoPeriodMsFieldNumber = 1,
-    kMeminfoCountersFieldNumber = 2,
-    kVmstatPeriodMsFieldNumber = 3,
-    kVmstatCountersFieldNumber = 4,
-    kStatPeriodMsFieldNumber = 5,
-    kStatCountersFieldNumber = 6,
-    kDevfreqPeriodMsFieldNumber = 7,
-  };
-
-  SysStatsConfig();
-  ~SysStatsConfig() override;
-  SysStatsConfig(SysStatsConfig&&) noexcept;
-  SysStatsConfig& operator=(SysStatsConfig&&);
-  SysStatsConfig(const SysStatsConfig&);
-  SysStatsConfig& operator=(const SysStatsConfig&);
-  bool operator==(const SysStatsConfig&) const;
-  bool operator!=(const SysStatsConfig& other) const { return !(*this == other); }
-
-  bool ParseFromArray(const void*, size_t) override;
-  std::string SerializeAsString() const override;
-  std::vector<uint8_t> SerializeAsArray() const override;
-  void Serialize(::protozero::Message*) const;
-
-  bool has_meminfo_period_ms() const { return _has_field_[1]; }
-  uint32_t meminfo_period_ms() const { return meminfo_period_ms_; }
-  void set_meminfo_period_ms(uint32_t value) { meminfo_period_ms_ = value; _has_field_.set(1); }
-
-  const std::vector<MeminfoCounters>& meminfo_counters() const { return meminfo_counters_; }
-  std::vector<MeminfoCounters>* mutable_meminfo_counters() { return &meminfo_counters_; }
-  int meminfo_counters_size() const { return static_cast<int>(meminfo_counters_.size()); }
-  void clear_meminfo_counters() { meminfo_counters_.clear(); }
-  void add_meminfo_counters(MeminfoCounters value) { meminfo_counters_.emplace_back(value); }
-  MeminfoCounters* add_meminfo_counters() { meminfo_counters_.emplace_back(); return &meminfo_counters_.back(); }
-
-  bool has_vmstat_period_ms() const { return _has_field_[3]; }
-  uint32_t vmstat_period_ms() const { return vmstat_period_ms_; }
-  void set_vmstat_period_ms(uint32_t value) { vmstat_period_ms_ = value; _has_field_.set(3); }
-
-  const std::vector<VmstatCounters>& vmstat_counters() const { return vmstat_counters_; }
-  std::vector<VmstatCounters>* mutable_vmstat_counters() { return &vmstat_counters_; }
-  int vmstat_counters_size() const { return static_cast<int>(vmstat_counters_.size()); }
-  void clear_vmstat_counters() { vmstat_counters_.clear(); }
-  void add_vmstat_counters(VmstatCounters value) { vmstat_counters_.emplace_back(value); }
-  VmstatCounters* add_vmstat_counters() { vmstat_counters_.emplace_back(); return &vmstat_counters_.back(); }
-
-  bool has_stat_period_ms() const { return _has_field_[5]; }
-  uint32_t stat_period_ms() const { return stat_period_ms_; }
-  void set_stat_period_ms(uint32_t value) { stat_period_ms_ = value; _has_field_.set(5); }
-
-  const std::vector<SysStatsConfig_StatCounters>& stat_counters() const { return stat_counters_; }
-  std::vector<SysStatsConfig_StatCounters>* mutable_stat_counters() { return &stat_counters_; }
-  int stat_counters_size() const { return static_cast<int>(stat_counters_.size()); }
-  void clear_stat_counters() { stat_counters_.clear(); }
-  void add_stat_counters(SysStatsConfig_StatCounters value) { stat_counters_.emplace_back(value); }
-  SysStatsConfig_StatCounters* add_stat_counters() { stat_counters_.emplace_back(); return &stat_counters_.back(); }
-
-  bool has_devfreq_period_ms() const { return _has_field_[7]; }
-  uint32_t devfreq_period_ms() const { return devfreq_period_ms_; }
-  void set_devfreq_period_ms(uint32_t value) { devfreq_period_ms_ = value; _has_field_.set(7); }
-
- private:
-  uint32_t meminfo_period_ms_{};
-  std::vector<MeminfoCounters> meminfo_counters_;
-  uint32_t vmstat_period_ms_{};
-  std::vector<VmstatCounters> vmstat_counters_;
-  uint32_t stat_period_ms_{};
-  std::vector<SysStatsConfig_StatCounters> stat_counters_;
-  uint32_t devfreq_period_ms_{};
-
-  // Allows to preserve unknown protobuf fields for compatibility
-  // with future versions of .proto files.
-  std::string unknown_fields_;
-
-  std::bitset<8> _has_field_{};
-};
-
-}  // namespace perfetto
-}  // namespace protos
-}  // namespace gen
-
-#endif  // PERFETTO_PROTOS_PROTOS_PERFETTO_CONFIG_SYS_STATS_SYS_STATS_CONFIG_PROTO_CPP_H_
-// gen_amalgamated expanded: #include "perfetto/protozero/message.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/packed_repeated_fields.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/proto_decoder.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/scattered_heap_buffer.h"
-// DO NOT EDIT. Autogenerated by Perfetto cppgen_plugin
-#if defined(__GNUC__) || defined(__clang__)
-#pragma GCC diagnostic push
-#pragma GCC diagnostic ignored "-Wfloat-equal"
-#endif
-// gen_amalgamated expanded: #include "protos/perfetto/config/sys_stats/sys_stats_config.gen.h"
-// gen_amalgamated expanded: #include "protos/perfetto/common/sys_stats_counters.gen.h"
-
-namespace perfetto {
-namespace protos {
-namespace gen {
-
-SysStatsConfig::SysStatsConfig() = default;
-SysStatsConfig::~SysStatsConfig() = default;
-SysStatsConfig::SysStatsConfig(const SysStatsConfig&) = default;
-SysStatsConfig& SysStatsConfig::operator=(const SysStatsConfig&) = default;
-SysStatsConfig::SysStatsConfig(SysStatsConfig&&) noexcept = default;
-SysStatsConfig& SysStatsConfig::operator=(SysStatsConfig&&) = default;
-
-bool SysStatsConfig::operator==(const SysStatsConfig& other) const {
-  return unknown_fields_ == other.unknown_fields_
-   && meminfo_period_ms_ == other.meminfo_period_ms_
-   && meminfo_counters_ == other.meminfo_counters_
-   && vmstat_period_ms_ == other.vmstat_period_ms_
-   && vmstat_counters_ == other.vmstat_counters_
-   && stat_period_ms_ == other.stat_period_ms_
-   && stat_counters_ == other.stat_counters_
-   && devfreq_period_ms_ == other.devfreq_period_ms_;
-}
-
-bool SysStatsConfig::ParseFromArray(const void* raw, size_t size) {
-  meminfo_counters_.clear();
-  vmstat_counters_.clear();
-  stat_counters_.clear();
-  unknown_fields_.clear();
-  bool packed_error = false;
-
-  ::protozero::ProtoDecoder dec(raw, size);
-  for (auto field = dec.ReadField(); field.valid(); field = dec.ReadField()) {
-    if (field.id() < _has_field_.size()) {
-      _has_field_.set(field.id());
-    }
-    switch (field.id()) {
-      case 1 /* meminfo_period_ms */:
-        field.get(&meminfo_period_ms_);
-        break;
-      case 2 /* meminfo_counters */:
-        meminfo_counters_.emplace_back();
-        field.get(&meminfo_counters_.back());
-        break;
-      case 3 /* vmstat_period_ms */:
-        field.get(&vmstat_period_ms_);
-        break;
-      case 4 /* vmstat_counters */:
-        vmstat_counters_.emplace_back();
-        field.get(&vmstat_counters_.back());
-        break;
-      case 5 /* stat_period_ms */:
-        field.get(&stat_period_ms_);
-        break;
-      case 6 /* stat_counters */:
-        stat_counters_.emplace_back();
-        field.get(&stat_counters_.back());
-        break;
-      case 7 /* devfreq_period_ms */:
-        field.get(&devfreq_period_ms_);
-        break;
-      default:
-        field.SerializeAndAppendTo(&unknown_fields_);
-        break;
-    }
-  }
-  return !packed_error && !dec.bytes_left();
-}
-
-std::string SysStatsConfig::SerializeAsString() const {
-  ::protozero::HeapBuffered<::protozero::Message> msg;
-  Serialize(msg.get());
-  return msg.SerializeAsString();
-}
-
-std::vector<uint8_t> SysStatsConfig::SerializeAsArray() const {
-  ::protozero::HeapBuffered<::protozero::Message> msg;
-  Serialize(msg.get());
-  return msg.SerializeAsArray();
-}
-
-void SysStatsConfig::Serialize(::protozero::Message* msg) const {
-  // Field 1: meminfo_period_ms
-  if (_has_field_[1]) {
-    msg->AppendVarInt(1, meminfo_period_ms_);
-  }
-
-  // Field 2: meminfo_counters
-  for (auto& it : meminfo_counters_) {
-    msg->AppendVarInt(2, it);
-  }
-
-  // Field 3: vmstat_period_ms
-  if (_has_field_[3]) {
-    msg->AppendVarInt(3, vmstat_period_ms_);
-  }
-
-  // Field 4: vmstat_counters
-  for (auto& it : vmstat_counters_) {
-    msg->AppendVarInt(4, it);
-  }
-
-  // Field 5: stat_period_ms
-  if (_has_field_[5]) {
-    msg->AppendVarInt(5, stat_period_ms_);
-  }
-
-  // Field 6: stat_counters
-  for (auto& it : stat_counters_) {
-    msg->AppendVarInt(6, it);
-  }
-
-  // Field 7: devfreq_period_ms
-  if (_has_field_[7]) {
-    msg->AppendVarInt(7, devfreq_period_ms_);
-  }
-
-  msg->AppendRawProtoBytes(unknown_fields_.data(), unknown_fields_.size());
-}
-
-}  // namespace perfetto
-}  // namespace protos
-}  // namespace gen
-#if defined(__GNUC__) || defined(__clang__)
-#pragma GCC diagnostic pop
-#endif
-// gen_amalgamated begin source: gen/protos/perfetto/config/track_event/track_event_config.gen.cc
-// gen_amalgamated expanded: #include "perfetto/protozero/message.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/packed_repeated_fields.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/proto_decoder.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/scattered_heap_buffer.h"
-// DO NOT EDIT. Autogenerated by Perfetto cppgen_plugin
-#if defined(__GNUC__) || defined(__clang__)
-#pragma GCC diagnostic push
-#pragma GCC diagnostic ignored "-Wfloat-equal"
-#endif
-// gen_amalgamated expanded: #include "protos/perfetto/config/track_event/track_event_config.gen.h"
-
-namespace perfetto {
-namespace protos {
-namespace gen {
-
-TrackEventConfig::TrackEventConfig() = default;
-TrackEventConfig::~TrackEventConfig() = default;
-TrackEventConfig::TrackEventConfig(const TrackEventConfig&) = default;
-TrackEventConfig& TrackEventConfig::operator=(const TrackEventConfig&) = default;
-TrackEventConfig::TrackEventConfig(TrackEventConfig&&) noexcept = default;
-TrackEventConfig& TrackEventConfig::operator=(TrackEventConfig&&) = default;
-
-bool TrackEventConfig::operator==(const TrackEventConfig& other) const {
-  return unknown_fields_ == other.unknown_fields_
-   && disabled_categories_ == other.disabled_categories_
-   && enabled_categories_ == other.enabled_categories_
-   && disabled_tags_ == other.disabled_tags_
-   && enabled_tags_ == other.enabled_tags_;
-}
-
-bool TrackEventConfig::ParseFromArray(const void* raw, size_t size) {
-  disabled_categories_.clear();
-  enabled_categories_.clear();
-  disabled_tags_.clear();
-  enabled_tags_.clear();
-  unknown_fields_.clear();
-  bool packed_error = false;
-
-  ::protozero::ProtoDecoder dec(raw, size);
-  for (auto field = dec.ReadField(); field.valid(); field = dec.ReadField()) {
-    if (field.id() < _has_field_.size()) {
-      _has_field_.set(field.id());
-    }
-    switch (field.id()) {
-      case 1 /* disabled_categories */:
-        disabled_categories_.emplace_back();
-        field.get(&disabled_categories_.back());
-        break;
-      case 2 /* enabled_categories */:
-        enabled_categories_.emplace_back();
-        field.get(&enabled_categories_.back());
-        break;
-      case 3 /* disabled_tags */:
-        disabled_tags_.emplace_back();
-        field.get(&disabled_tags_.back());
-        break;
-      case 4 /* enabled_tags */:
-        enabled_tags_.emplace_back();
-        field.get(&enabled_tags_.back());
-        break;
-      default:
-        field.SerializeAndAppendTo(&unknown_fields_);
-        break;
-    }
-  }
-  return !packed_error && !dec.bytes_left();
-}
-
-std::string TrackEventConfig::SerializeAsString() const {
-  ::protozero::HeapBuffered<::protozero::Message> msg;
-  Serialize(msg.get());
-  return msg.SerializeAsString();
-}
-
-std::vector<uint8_t> TrackEventConfig::SerializeAsArray() const {
-  ::protozero::HeapBuffered<::protozero::Message> msg;
-  Serialize(msg.get());
-  return msg.SerializeAsArray();
-}
-
-void TrackEventConfig::Serialize(::protozero::Message* msg) const {
-  // Field 1: disabled_categories
-  for (auto& it : disabled_categories_) {
-    msg->AppendString(1, it);
-  }
-
-  // Field 2: enabled_categories
-  for (auto& it : enabled_categories_) {
-    msg->AppendString(2, it);
-  }
-
-  // Field 3: disabled_tags
-  for (auto& it : disabled_tags_) {
-    msg->AppendString(3, it);
-  }
-
-  // Field 4: enabled_tags
-  for (auto& it : enabled_tags_) {
-    msg->AppendString(4, it);
-  }
-
-  msg->AppendRawProtoBytes(unknown_fields_.data(), unknown_fields_.size());
-}
-
-}  // namespace perfetto
-}  // namespace protos
-}  // namespace gen
-#if defined(__GNUC__) || defined(__clang__)
-#pragma GCC diagnostic pop
-#endif
-// gen_amalgamated begin source: gen/protos/perfetto/config/chrome/chrome_config.gen.cc
-// gen_amalgamated begin header: gen/protos/perfetto/config/chrome/chrome_config.gen.h
-// DO NOT EDIT. Autogenerated by Perfetto cppgen_plugin
-#ifndef PERFETTO_PROTOS_PROTOS_PERFETTO_CONFIG_CHROME_CHROME_CONFIG_PROTO_CPP_H_
-#define PERFETTO_PROTOS_PROTOS_PERFETTO_CONFIG_CHROME_CHROME_CONFIG_PROTO_CPP_H_
-
-#include <stdint.h>
-#include <bitset>
-#include <vector>
-#include <string>
-#include <type_traits>
-
-// gen_amalgamated expanded: #include "perfetto/protozero/cpp_message_obj.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/copyable_ptr.h"
-// gen_amalgamated expanded: #include "perfetto/base/export.h"
-
-namespace perfetto {
-namespace protos {
-namespace gen {
-class ChromeConfig;
-enum ChromeConfig_ClientPriority : int;
-}  // namespace perfetto
-}  // namespace protos
-}  // namespace gen
-
-namespace protozero {
-class Message;
-}  // namespace protozero
-
-namespace perfetto {
-namespace protos {
-namespace gen {
-enum ChromeConfig_ClientPriority : int {
-  ChromeConfig_ClientPriority_UNKNOWN = 0,
-  ChromeConfig_ClientPriority_BACKGROUND = 1,
-  ChromeConfig_ClientPriority_USER_INITIATED = 2,
-};
-
-class PERFETTO_EXPORT ChromeConfig : public ::protozero::CppMessageObj {
- public:
-  using ClientPriority = ChromeConfig_ClientPriority;
-  static constexpr auto UNKNOWN = ChromeConfig_ClientPriority_UNKNOWN;
-  static constexpr auto BACKGROUND = ChromeConfig_ClientPriority_BACKGROUND;
-  static constexpr auto USER_INITIATED = ChromeConfig_ClientPriority_USER_INITIATED;
-  static constexpr auto ClientPriority_MIN = ChromeConfig_ClientPriority_UNKNOWN;
-  static constexpr auto ClientPriority_MAX = ChromeConfig_ClientPriority_USER_INITIATED;
-  enum FieldNumbers {
-    kTraceConfigFieldNumber = 1,
-    kPrivacyFilteringEnabledFieldNumber = 2,
-    kConvertToLegacyJsonFieldNumber = 3,
-    kClientPriorityFieldNumber = 4,
-    kJsonAgentLabelFilterFieldNumber = 5,
-  };
-
-  ChromeConfig();
-  ~ChromeConfig() override;
-  ChromeConfig(ChromeConfig&&) noexcept;
-  ChromeConfig& operator=(ChromeConfig&&);
-  ChromeConfig(const ChromeConfig&);
-  ChromeConfig& operator=(const ChromeConfig&);
-  bool operator==(const ChromeConfig&) const;
-  bool operator!=(const ChromeConfig& other) const { return !(*this == other); }
-
-  bool ParseFromArray(const void*, size_t) override;
-  std::string SerializeAsString() const override;
-  std::vector<uint8_t> SerializeAsArray() const override;
-  void Serialize(::protozero::Message*) const;
-
-  bool has_trace_config() const { return _has_field_[1]; }
-  const std::string& trace_config() const { return trace_config_; }
-  void set_trace_config(const std::string& value) { trace_config_ = value; _has_field_.set(1); }
-
-  bool has_privacy_filtering_enabled() const { return _has_field_[2]; }
-  bool privacy_filtering_enabled() const { return privacy_filtering_enabled_; }
-  void set_privacy_filtering_enabled(bool value) { privacy_filtering_enabled_ = value; _has_field_.set(2); }
-
-  bool has_convert_to_legacy_json() const { return _has_field_[3]; }
-  bool convert_to_legacy_json() const { return convert_to_legacy_json_; }
-  void set_convert_to_legacy_json(bool value) { convert_to_legacy_json_ = value; _has_field_.set(3); }
-
-  bool has_client_priority() const { return _has_field_[4]; }
-  ChromeConfig_ClientPriority client_priority() const { return client_priority_; }
-  void set_client_priority(ChromeConfig_ClientPriority value) { client_priority_ = value; _has_field_.set(4); }
-
-  bool has_json_agent_label_filter() const { return _has_field_[5]; }
-  const std::string& json_agent_label_filter() const { return json_agent_label_filter_; }
-  void set_json_agent_label_filter(const std::string& value) { json_agent_label_filter_ = value; _has_field_.set(5); }
-
- private:
-  std::string trace_config_{};
-  bool privacy_filtering_enabled_{};
-  bool convert_to_legacy_json_{};
-  ChromeConfig_ClientPriority client_priority_{};
-  std::string json_agent_label_filter_{};
-
-  // Allows to preserve unknown protobuf fields for compatibility
-  // with future versions of .proto files.
-  std::string unknown_fields_;
-
-  std::bitset<6> _has_field_{};
-};
-
-}  // namespace perfetto
-}  // namespace protos
-}  // namespace gen
-
-#endif  // PERFETTO_PROTOS_PROTOS_PERFETTO_CONFIG_CHROME_CHROME_CONFIG_PROTO_CPP_H_
-// gen_amalgamated expanded: #include "perfetto/protozero/message.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/packed_repeated_fields.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/proto_decoder.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/scattered_heap_buffer.h"
-// DO NOT EDIT. Autogenerated by Perfetto cppgen_plugin
-#if defined(__GNUC__) || defined(__clang__)
-#pragma GCC diagnostic push
-#pragma GCC diagnostic ignored "-Wfloat-equal"
-#endif
-// gen_amalgamated expanded: #include "protos/perfetto/config/chrome/chrome_config.gen.h"
-
-namespace perfetto {
-namespace protos {
-namespace gen {
-
-ChromeConfig::ChromeConfig() = default;
-ChromeConfig::~ChromeConfig() = default;
-ChromeConfig::ChromeConfig(const ChromeConfig&) = default;
-ChromeConfig& ChromeConfig::operator=(const ChromeConfig&) = default;
-ChromeConfig::ChromeConfig(ChromeConfig&&) noexcept = default;
-ChromeConfig& ChromeConfig::operator=(ChromeConfig&&) = default;
-
-bool ChromeConfig::operator==(const ChromeConfig& other) const {
-  return unknown_fields_ == other.unknown_fields_
-   && trace_config_ == other.trace_config_
-   && privacy_filtering_enabled_ == other.privacy_filtering_enabled_
-   && convert_to_legacy_json_ == other.convert_to_legacy_json_
-   && client_priority_ == other.client_priority_
-   && json_agent_label_filter_ == other.json_agent_label_filter_;
-}
-
-bool ChromeConfig::ParseFromArray(const void* raw, size_t size) {
-  unknown_fields_.clear();
-  bool packed_error = false;
-
-  ::protozero::ProtoDecoder dec(raw, size);
-  for (auto field = dec.ReadField(); field.valid(); field = dec.ReadField()) {
-    if (field.id() < _has_field_.size()) {
-      _has_field_.set(field.id());
-    }
-    switch (field.id()) {
-      case 1 /* trace_config */:
-        field.get(&trace_config_);
-        break;
-      case 2 /* privacy_filtering_enabled */:
-        field.get(&privacy_filtering_enabled_);
-        break;
-      case 3 /* convert_to_legacy_json */:
-        field.get(&convert_to_legacy_json_);
-        break;
-      case 4 /* client_priority */:
-        field.get(&client_priority_);
-        break;
-      case 5 /* json_agent_label_filter */:
-        field.get(&json_agent_label_filter_);
-        break;
-      default:
-        field.SerializeAndAppendTo(&unknown_fields_);
-        break;
-    }
-  }
-  return !packed_error && !dec.bytes_left();
-}
-
-std::string ChromeConfig::SerializeAsString() const {
-  ::protozero::HeapBuffered<::protozero::Message> msg;
-  Serialize(msg.get());
-  return msg.SerializeAsString();
-}
-
-std::vector<uint8_t> ChromeConfig::SerializeAsArray() const {
-  ::protozero::HeapBuffered<::protozero::Message> msg;
-  Serialize(msg.get());
-  return msg.SerializeAsArray();
-}
-
-void ChromeConfig::Serialize(::protozero::Message* msg) const {
-  // Field 1: trace_config
-  if (_has_field_[1]) {
-    msg->AppendString(1, trace_config_);
-  }
-
-  // Field 2: privacy_filtering_enabled
-  if (_has_field_[2]) {
-    msg->AppendTinyVarInt(2, privacy_filtering_enabled_);
-  }
-
-  // Field 3: convert_to_legacy_json
-  if (_has_field_[3]) {
-    msg->AppendTinyVarInt(3, convert_to_legacy_json_);
-  }
-
-  // Field 4: client_priority
-  if (_has_field_[4]) {
-    msg->AppendVarInt(4, client_priority_);
-  }
-
-  // Field 5: json_agent_label_filter
-  if (_has_field_[5]) {
-    msg->AppendString(5, json_agent_label_filter_);
-  }
-
-  msg->AppendRawProtoBytes(unknown_fields_.data(), unknown_fields_.size());
-}
-
-}  // namespace perfetto
-}  // namespace protos
-}  // namespace gen
-#if defined(__GNUC__) || defined(__clang__)
-#pragma GCC diagnostic pop
-#endif
-// gen_amalgamated begin source: gen/protos/perfetto/config/data_source_config.gen.cc
-// gen_amalgamated begin header: gen/protos/perfetto/config/test_config.gen.h
-// DO NOT EDIT. Autogenerated by Perfetto cppgen_plugin
-#ifndef PERFETTO_PROTOS_PROTOS_PERFETTO_CONFIG_TEST_CONFIG_PROTO_CPP_H_
-#define PERFETTO_PROTOS_PROTOS_PERFETTO_CONFIG_TEST_CONFIG_PROTO_CPP_H_
-
-#include <stdint.h>
-#include <bitset>
-#include <vector>
-#include <string>
-#include <type_traits>
-
-// gen_amalgamated expanded: #include "perfetto/protozero/cpp_message_obj.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/copyable_ptr.h"
-// gen_amalgamated expanded: #include "perfetto/base/export.h"
-
-namespace perfetto {
-namespace protos {
-namespace gen {
-class TestConfig;
-class TestConfig_DummyFields;
-}  // namespace perfetto
-}  // namespace protos
-}  // namespace gen
-
-namespace protozero {
-class Message;
-}  // namespace protozero
-
-namespace perfetto {
-namespace protos {
-namespace gen {
-
-class PERFETTO_EXPORT TestConfig : public ::protozero::CppMessageObj {
- public:
-  using DummyFields = TestConfig_DummyFields;
-  enum FieldNumbers {
-    kMessageCountFieldNumber = 1,
-    kMaxMessagesPerSecondFieldNumber = 2,
-    kSeedFieldNumber = 3,
-    kMessageSizeFieldNumber = 4,
-    kSendBatchOnRegisterFieldNumber = 5,
-    kDummyFieldsFieldNumber = 6,
-  };
-
-  TestConfig();
-  ~TestConfig() override;
-  TestConfig(TestConfig&&) noexcept;
-  TestConfig& operator=(TestConfig&&);
-  TestConfig(const TestConfig&);
-  TestConfig& operator=(const TestConfig&);
-  bool operator==(const TestConfig&) const;
-  bool operator!=(const TestConfig& other) const { return !(*this == other); }
-
-  bool ParseFromArray(const void*, size_t) override;
-  std::string SerializeAsString() const override;
-  std::vector<uint8_t> SerializeAsArray() const override;
-  void Serialize(::protozero::Message*) const;
-
-  bool has_message_count() const { return _has_field_[1]; }
-  uint32_t message_count() const { return message_count_; }
-  void set_message_count(uint32_t value) { message_count_ = value; _has_field_.set(1); }
-
-  bool has_max_messages_per_second() const { return _has_field_[2]; }
-  uint32_t max_messages_per_second() const { return max_messages_per_second_; }
-  void set_max_messages_per_second(uint32_t value) { max_messages_per_second_ = value; _has_field_.set(2); }
-
-  bool has_seed() const { return _has_field_[3]; }
-  uint32_t seed() const { return seed_; }
-  void set_seed(uint32_t value) { seed_ = value; _has_field_.set(3); }
-
-  bool has_message_size() const { return _has_field_[4]; }
-  uint32_t message_size() const { return message_size_; }
-  void set_message_size(uint32_t value) { message_size_ = value; _has_field_.set(4); }
-
-  bool has_send_batch_on_register() const { return _has_field_[5]; }
-  bool send_batch_on_register() const { return send_batch_on_register_; }
-  void set_send_batch_on_register(bool value) { send_batch_on_register_ = value; _has_field_.set(5); }
-
-  bool has_dummy_fields() const { return _has_field_[6]; }
-  const TestConfig_DummyFields& dummy_fields() const { return *dummy_fields_; }
-  TestConfig_DummyFields* mutable_dummy_fields() { _has_field_.set(6); return dummy_fields_.get(); }
-
- private:
-  uint32_t message_count_{};
-  uint32_t max_messages_per_second_{};
-  uint32_t seed_{};
-  uint32_t message_size_{};
-  bool send_batch_on_register_{};
-  ::protozero::CopyablePtr<TestConfig_DummyFields> dummy_fields_;
-
-  // Allows to preserve unknown protobuf fields for compatibility
-  // with future versions of .proto files.
-  std::string unknown_fields_;
-
-  std::bitset<7> _has_field_{};
-};
-
-
-class PERFETTO_EXPORT TestConfig_DummyFields : public ::protozero::CppMessageObj {
- public:
-  enum FieldNumbers {
-    kFieldUint32FieldNumber = 1,
-    kFieldInt32FieldNumber = 2,
-    kFieldUint64FieldNumber = 3,
-    kFieldInt64FieldNumber = 4,
-    kFieldFixed64FieldNumber = 5,
-    kFieldSfixed64FieldNumber = 6,
-    kFieldFixed32FieldNumber = 7,
-    kFieldSfixed32FieldNumber = 8,
-    kFieldDoubleFieldNumber = 9,
-    kFieldFloatFieldNumber = 10,
-    kFieldSint64FieldNumber = 11,
-    kFieldSint32FieldNumber = 12,
-    kFieldStringFieldNumber = 13,
-    kFieldBytesFieldNumber = 14,
-  };
-
-  TestConfig_DummyFields();
-  ~TestConfig_DummyFields() override;
-  TestConfig_DummyFields(TestConfig_DummyFields&&) noexcept;
-  TestConfig_DummyFields& operator=(TestConfig_DummyFields&&);
-  TestConfig_DummyFields(const TestConfig_DummyFields&);
-  TestConfig_DummyFields& operator=(const TestConfig_DummyFields&);
-  bool operator==(const TestConfig_DummyFields&) const;
-  bool operator!=(const TestConfig_DummyFields& other) const { return !(*this == other); }
-
-  bool ParseFromArray(const void*, size_t) override;
-  std::string SerializeAsString() const override;
-  std::vector<uint8_t> SerializeAsArray() const override;
-  void Serialize(::protozero::Message*) const;
-
-  bool has_field_uint32() const { return _has_field_[1]; }
-  uint32_t field_uint32() const { return field_uint32_; }
-  void set_field_uint32(uint32_t value) { field_uint32_ = value; _has_field_.set(1); }
-
-  bool has_field_int32() const { return _has_field_[2]; }
-  int32_t field_int32() const { return field_int32_; }
-  void set_field_int32(int32_t value) { field_int32_ = value; _has_field_.set(2); }
-
-  bool has_field_uint64() const { return _has_field_[3]; }
-  uint64_t field_uint64() const { return field_uint64_; }
-  void set_field_uint64(uint64_t value) { field_uint64_ = value; _has_field_.set(3); }
-
-  bool has_field_int64() const { return _has_field_[4]; }
-  int64_t field_int64() const { return field_int64_; }
-  void set_field_int64(int64_t value) { field_int64_ = value; _has_field_.set(4); }
-
-  bool has_field_fixed64() const { return _has_field_[5]; }
-  uint64_t field_fixed64() const { return field_fixed64_; }
-  void set_field_fixed64(uint64_t value) { field_fixed64_ = value; _has_field_.set(5); }
-
-  bool has_field_sfixed64() const { return _has_field_[6]; }
-  int64_t field_sfixed64() const { return field_sfixed64_; }
-  void set_field_sfixed64(int64_t value) { field_sfixed64_ = value; _has_field_.set(6); }
-
-  bool has_field_fixed32() const { return _has_field_[7]; }
-  uint32_t field_fixed32() const { return field_fixed32_; }
-  void set_field_fixed32(uint32_t value) { field_fixed32_ = value; _has_field_.set(7); }
-
-  bool has_field_sfixed32() const { return _has_field_[8]; }
-  int32_t field_sfixed32() const { return field_sfixed32_; }
-  void set_field_sfixed32(int32_t value) { field_sfixed32_ = value; _has_field_.set(8); }
-
-  bool has_field_double() const { return _has_field_[9]; }
-  double field_double() const { return field_double_; }
-  void set_field_double(double value) { field_double_ = value; _has_field_.set(9); }
-
-  bool has_field_float() const { return _has_field_[10]; }
-  float field_float() const { return field_float_; }
-  void set_field_float(float value) { field_float_ = value; _has_field_.set(10); }
-
-  bool has_field_sint64() const { return _has_field_[11]; }
-  int64_t field_sint64() const { return field_sint64_; }
-  void set_field_sint64(int64_t value) { field_sint64_ = value; _has_field_.set(11); }
-
-  bool has_field_sint32() const { return _has_field_[12]; }
-  int32_t field_sint32() const { return field_sint32_; }
-  void set_field_sint32(int32_t value) { field_sint32_ = value; _has_field_.set(12); }
-
-  bool has_field_string() const { return _has_field_[13]; }
-  const std::string& field_string() const { return field_string_; }
-  void set_field_string(const std::string& value) { field_string_ = value; _has_field_.set(13); }
-
-  bool has_field_bytes() const { return _has_field_[14]; }
-  const std::string& field_bytes() const { return field_bytes_; }
-  void set_field_bytes(const std::string& value) { field_bytes_ = value; _has_field_.set(14); }
-  void set_field_bytes(const void* p, size_t s) { field_bytes_.assign(reinterpret_cast<const char*>(p), s); _has_field_.set(14); }
-
- private:
-  uint32_t field_uint32_{};
-  int32_t field_int32_{};
-  uint64_t field_uint64_{};
-  int64_t field_int64_{};
-  uint64_t field_fixed64_{};
-  int64_t field_sfixed64_{};
-  uint32_t field_fixed32_{};
-  int32_t field_sfixed32_{};
-  double field_double_{};
-  float field_float_{};
-  int64_t field_sint64_{};
-  int32_t field_sint32_{};
-  std::string field_string_{};
-  std::string field_bytes_{};
-
-  // Allows to preserve unknown protobuf fields for compatibility
-  // with future versions of .proto files.
-  std::string unknown_fields_;
-
-  std::bitset<15> _has_field_{};
-};
-
-}  // namespace perfetto
-}  // namespace protos
-}  // namespace gen
-
-#endif  // PERFETTO_PROTOS_PROTOS_PERFETTO_CONFIG_TEST_CONFIG_PROTO_CPP_H_
-// gen_amalgamated begin header: gen/protos/perfetto/config/interceptor_config.gen.h
-// DO NOT EDIT. Autogenerated by Perfetto cppgen_plugin
-#ifndef PERFETTO_PROTOS_PROTOS_PERFETTO_CONFIG_INTERCEPTOR_CONFIG_PROTO_CPP_H_
-#define PERFETTO_PROTOS_PROTOS_PERFETTO_CONFIG_INTERCEPTOR_CONFIG_PROTO_CPP_H_
-
-#include <stdint.h>
-#include <bitset>
-#include <vector>
-#include <string>
-#include <type_traits>
-
-// gen_amalgamated expanded: #include "perfetto/protozero/cpp_message_obj.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/copyable_ptr.h"
-// gen_amalgamated expanded: #include "perfetto/base/export.h"
-
-namespace perfetto {
-namespace protos {
-namespace gen {
-class InterceptorConfig;
-}  // namespace perfetto
-}  // namespace protos
-}  // namespace gen
-
-namespace protozero {
-class Message;
-}  // namespace protozero
-
-namespace perfetto {
-namespace protos {
-namespace gen {
-
-class PERFETTO_EXPORT InterceptorConfig : public ::protozero::CppMessageObj {
- public:
-  enum FieldNumbers {
-    kNameFieldNumber = 1,
-    kConsoleConfigFieldNumber = 100,
-  };
-
-  InterceptorConfig();
-  ~InterceptorConfig() override;
-  InterceptorConfig(InterceptorConfig&&) noexcept;
-  InterceptorConfig& operator=(InterceptorConfig&&);
-  InterceptorConfig(const InterceptorConfig&);
-  InterceptorConfig& operator=(const InterceptorConfig&);
-  bool operator==(const InterceptorConfig&) const;
-  bool operator!=(const InterceptorConfig& other) const { return !(*this == other); }
-
-  bool ParseFromArray(const void*, size_t) override;
-  std::string SerializeAsString() const override;
-  std::vector<uint8_t> SerializeAsArray() const override;
-  void Serialize(::protozero::Message*) const;
-
-  bool has_name() const { return _has_field_[1]; }
-  const std::string& name() const { return name_; }
-  void set_name(const std::string& value) { name_ = value; _has_field_.set(1); }
-
-  const std::string& console_config_raw() const { return console_config_; }
-  void set_console_config_raw(const std::string& raw) { console_config_ = raw; _has_field_.set(100); }
-
- private:
-  std::string name_{};
-  std::string console_config_;  // [lazy=true]
-
-  // Allows to preserve unknown protobuf fields for compatibility
-  // with future versions of .proto files.
-  std::string unknown_fields_;
-
-  std::bitset<101> _has_field_{};
-};
-
-}  // namespace perfetto
-}  // namespace protos
-}  // namespace gen
-
-#endif  // PERFETTO_PROTOS_PROTOS_PERFETTO_CONFIG_INTERCEPTOR_CONFIG_PROTO_CPP_H_
-// gen_amalgamated expanded: #include "perfetto/protozero/message.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/packed_repeated_fields.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/proto_decoder.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/scattered_heap_buffer.h"
-// DO NOT EDIT. Autogenerated by Perfetto cppgen_plugin
-#if defined(__GNUC__) || defined(__clang__)
-#pragma GCC diagnostic push
-#pragma GCC diagnostic ignored "-Wfloat-equal"
-#endif
-// gen_amalgamated expanded: #include "protos/perfetto/config/data_source_config.gen.h"
-// gen_amalgamated expanded: #include "protos/perfetto/config/test_config.gen.h"
-// gen_amalgamated expanded: #include "protos/perfetto/config/interceptor_config.gen.h"
-// gen_amalgamated expanded: #include "protos/perfetto/config/interceptors/console_config.gen.h"
-// gen_amalgamated expanded: #include "protos/perfetto/config/chrome/chrome_config.gen.h"
-
-namespace perfetto {
-namespace protos {
-namespace gen {
-
-DataSourceConfig::DataSourceConfig() = default;
-DataSourceConfig::~DataSourceConfig() = default;
-DataSourceConfig::DataSourceConfig(const DataSourceConfig&) = default;
-DataSourceConfig& DataSourceConfig::operator=(const DataSourceConfig&) = default;
-DataSourceConfig::DataSourceConfig(DataSourceConfig&&) noexcept = default;
-DataSourceConfig& DataSourceConfig::operator=(DataSourceConfig&&) = default;
-
-bool DataSourceConfig::operator==(const DataSourceConfig& other) const {
-  return unknown_fields_ == other.unknown_fields_
-   && name_ == other.name_
-   && target_buffer_ == other.target_buffer_
-   && trace_duration_ms_ == other.trace_duration_ms_
-   && stop_timeout_ms_ == other.stop_timeout_ms_
-   && enable_extra_guardrails_ == other.enable_extra_guardrails_
-   && session_initiator_ == other.session_initiator_
-   && tracing_session_id_ == other.tracing_session_id_
-   && ftrace_config_ == other.ftrace_config_
-   && inode_file_config_ == other.inode_file_config_
-   && process_stats_config_ == other.process_stats_config_
-   && sys_stats_config_ == other.sys_stats_config_
-   && heapprofd_config_ == other.heapprofd_config_
-   && java_hprof_config_ == other.java_hprof_config_
-   && android_power_config_ == other.android_power_config_
-   && android_log_config_ == other.android_log_config_
-   && gpu_counter_config_ == other.gpu_counter_config_
-   && packages_list_config_ == other.packages_list_config_
-   && perf_event_config_ == other.perf_event_config_
-   && vulkan_memory_config_ == other.vulkan_memory_config_
-   && track_event_config_ == other.track_event_config_
-   && android_polled_state_config_ == other.android_polled_state_config_
-   && chrome_config_ == other.chrome_config_
-   && interceptor_config_ == other.interceptor_config_
-   && legacy_config_ == other.legacy_config_
-   && for_testing_ == other.for_testing_;
-}
-
-bool DataSourceConfig::ParseFromArray(const void* raw, size_t size) {
-  unknown_fields_.clear();
-  bool packed_error = false;
-
-  ::protozero::ProtoDecoder dec(raw, size);
-  for (auto field = dec.ReadField(); field.valid(); field = dec.ReadField()) {
-    if (field.id() < _has_field_.size()) {
-      _has_field_.set(field.id());
-    }
-    switch (field.id()) {
-      case 1 /* name */:
-        field.get(&name_);
-        break;
-      case 2 /* target_buffer */:
-        field.get(&target_buffer_);
-        break;
-      case 3 /* trace_duration_ms */:
-        field.get(&trace_duration_ms_);
-        break;
-      case 7 /* stop_timeout_ms */:
-        field.get(&stop_timeout_ms_);
-        break;
-      case 6 /* enable_extra_guardrails */:
-        field.get(&enable_extra_guardrails_);
-        break;
-      case 8 /* session_initiator */:
-        field.get(&session_initiator_);
-        break;
-      case 4 /* tracing_session_id */:
-        field.get(&tracing_session_id_);
-        break;
-      case 100 /* ftrace_config */:
-        ftrace_config_ = field.as_std_string();
-        break;
-      case 102 /* inode_file_config */:
-        inode_file_config_ = field.as_std_string();
-        break;
-      case 103 /* process_stats_config */:
-        process_stats_config_ = field.as_std_string();
-        break;
-      case 104 /* sys_stats_config */:
-        sys_stats_config_ = field.as_std_string();
-        break;
-      case 105 /* heapprofd_config */:
-        heapprofd_config_ = field.as_std_string();
-        break;
-      case 110 /* java_hprof_config */:
-        java_hprof_config_ = field.as_std_string();
-        break;
-      case 106 /* android_power_config */:
-        android_power_config_ = field.as_std_string();
-        break;
-      case 107 /* android_log_config */:
-        android_log_config_ = field.as_std_string();
-        break;
-      case 108 /* gpu_counter_config */:
-        gpu_counter_config_ = field.as_std_string();
-        break;
-      case 109 /* packages_list_config */:
-        packages_list_config_ = field.as_std_string();
-        break;
-      case 111 /* perf_event_config */:
-        perf_event_config_ = field.as_std_string();
-        break;
-      case 112 /* vulkan_memory_config */:
-        vulkan_memory_config_ = field.as_std_string();
-        break;
-      case 113 /* track_event_config */:
-        track_event_config_ = field.as_std_string();
-        break;
-      case 114 /* android_polled_state_config */:
-        android_polled_state_config_ = field.as_std_string();
-        break;
-      case 101 /* chrome_config */:
-        (*chrome_config_).ParseFromArray(field.data(), field.size());
-        break;
-      case 115 /* interceptor_config */:
-        (*interceptor_config_).ParseFromArray(field.data(), field.size());
-        break;
-      case 1000 /* legacy_config */:
-        field.get(&legacy_config_);
-        break;
-      case 1001 /* for_testing */:
-        (*for_testing_).ParseFromArray(field.data(), field.size());
-        break;
-      default:
-        field.SerializeAndAppendTo(&unknown_fields_);
-        break;
-    }
-  }
-  return !packed_error && !dec.bytes_left();
-}
-
-std::string DataSourceConfig::SerializeAsString() const {
-  ::protozero::HeapBuffered<::protozero::Message> msg;
-  Serialize(msg.get());
-  return msg.SerializeAsString();
-}
-
-std::vector<uint8_t> DataSourceConfig::SerializeAsArray() const {
-  ::protozero::HeapBuffered<::protozero::Message> msg;
-  Serialize(msg.get());
-  return msg.SerializeAsArray();
-}
-
-void DataSourceConfig::Serialize(::protozero::Message* msg) const {
-  // Field 1: name
-  if (_has_field_[1]) {
-    msg->AppendString(1, name_);
-  }
-
-  // Field 2: target_buffer
-  if (_has_field_[2]) {
-    msg->AppendVarInt(2, target_buffer_);
-  }
-
-  // Field 3: trace_duration_ms
-  if (_has_field_[3]) {
-    msg->AppendVarInt(3, trace_duration_ms_);
-  }
-
-  // Field 7: stop_timeout_ms
-  if (_has_field_[7]) {
-    msg->AppendVarInt(7, stop_timeout_ms_);
-  }
-
-  // Field 6: enable_extra_guardrails
-  if (_has_field_[6]) {
-    msg->AppendTinyVarInt(6, enable_extra_guardrails_);
-  }
-
-  // Field 8: session_initiator
-  if (_has_field_[8]) {
-    msg->AppendVarInt(8, session_initiator_);
-  }
-
-  // Field 4: tracing_session_id
-  if (_has_field_[4]) {
-    msg->AppendVarInt(4, tracing_session_id_);
-  }
-
-  // Field 100: ftrace_config
-  if (_has_field_[100]) {
-    msg->AppendString(100, ftrace_config_);
-  }
-
-  // Field 102: inode_file_config
-  if (_has_field_[102]) {
-    msg->AppendString(102, inode_file_config_);
-  }
-
-  // Field 103: process_stats_config
-  if (_has_field_[103]) {
-    msg->AppendString(103, process_stats_config_);
-  }
-
-  // Field 104: sys_stats_config
-  if (_has_field_[104]) {
-    msg->AppendString(104, sys_stats_config_);
-  }
-
-  // Field 105: heapprofd_config
-  if (_has_field_[105]) {
-    msg->AppendString(105, heapprofd_config_);
-  }
-
-  // Field 110: java_hprof_config
-  if (_has_field_[110]) {
-    msg->AppendString(110, java_hprof_config_);
-  }
-
-  // Field 106: android_power_config
-  if (_has_field_[106]) {
-    msg->AppendString(106, android_power_config_);
-  }
-
-  // Field 107: android_log_config
-  if (_has_field_[107]) {
-    msg->AppendString(107, android_log_config_);
-  }
-
-  // Field 108: gpu_counter_config
-  if (_has_field_[108]) {
-    msg->AppendString(108, gpu_counter_config_);
-  }
-
-  // Field 109: packages_list_config
-  if (_has_field_[109]) {
-    msg->AppendString(109, packages_list_config_);
-  }
-
-  // Field 111: perf_event_config
-  if (_has_field_[111]) {
-    msg->AppendString(111, perf_event_config_);
-  }
-
-  // Field 112: vulkan_memory_config
-  if (_has_field_[112]) {
-    msg->AppendString(112, vulkan_memory_config_);
-  }
-
-  // Field 113: track_event_config
-  if (_has_field_[113]) {
-    msg->AppendString(113, track_event_config_);
-  }
-
-  // Field 114: android_polled_state_config
-  if (_has_field_[114]) {
-    msg->AppendString(114, android_polled_state_config_);
-  }
-
-  // Field 101: chrome_config
-  if (_has_field_[101]) {
-    (*chrome_config_).Serialize(msg->BeginNestedMessage<::protozero::Message>(101));
-  }
-
-  // Field 115: interceptor_config
-  if (_has_field_[115]) {
-    (*interceptor_config_).Serialize(msg->BeginNestedMessage<::protozero::Message>(115));
-  }
-
-  // Field 1000: legacy_config
-  if (_has_field_[1000]) {
-    msg->AppendString(1000, legacy_config_);
-  }
-
-  // Field 1001: for_testing
-  if (_has_field_[1001]) {
-    (*for_testing_).Serialize(msg->BeginNestedMessage<::protozero::Message>(1001));
-  }
-
-  msg->AppendRawProtoBytes(unknown_fields_.data(), unknown_fields_.size());
-}
-
-}  // namespace perfetto
-}  // namespace protos
-}  // namespace gen
-#if defined(__GNUC__) || defined(__clang__)
-#pragma GCC diagnostic pop
-#endif
-// gen_amalgamated begin source: gen/protos/perfetto/config/interceptor_config.gen.cc
-// gen_amalgamated expanded: #include "perfetto/protozero/message.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/packed_repeated_fields.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/proto_decoder.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/scattered_heap_buffer.h"
-// DO NOT EDIT. Autogenerated by Perfetto cppgen_plugin
-#if defined(__GNUC__) || defined(__clang__)
-#pragma GCC diagnostic push
-#pragma GCC diagnostic ignored "-Wfloat-equal"
-#endif
-// gen_amalgamated expanded: #include "protos/perfetto/config/interceptor_config.gen.h"
-
-namespace perfetto {
-namespace protos {
-namespace gen {
-
-InterceptorConfig::InterceptorConfig() = default;
-InterceptorConfig::~InterceptorConfig() = default;
-InterceptorConfig::InterceptorConfig(const InterceptorConfig&) = default;
-InterceptorConfig& InterceptorConfig::operator=(const InterceptorConfig&) = default;
-InterceptorConfig::InterceptorConfig(InterceptorConfig&&) noexcept = default;
-InterceptorConfig& InterceptorConfig::operator=(InterceptorConfig&&) = default;
-
-bool InterceptorConfig::operator==(const InterceptorConfig& other) const {
-  return unknown_fields_ == other.unknown_fields_
-   && name_ == other.name_
-   && console_config_ == other.console_config_;
-}
-
-bool InterceptorConfig::ParseFromArray(const void* raw, size_t size) {
-  unknown_fields_.clear();
-  bool packed_error = false;
-
-  ::protozero::ProtoDecoder dec(raw, size);
-  for (auto field = dec.ReadField(); field.valid(); field = dec.ReadField()) {
-    if (field.id() < _has_field_.size()) {
-      _has_field_.set(field.id());
-    }
-    switch (field.id()) {
-      case 1 /* name */:
-        field.get(&name_);
-        break;
-      case 100 /* console_config */:
-        console_config_ = field.as_std_string();
-        break;
-      default:
-        field.SerializeAndAppendTo(&unknown_fields_);
-        break;
-    }
-  }
-  return !packed_error && !dec.bytes_left();
-}
-
-std::string InterceptorConfig::SerializeAsString() const {
-  ::protozero::HeapBuffered<::protozero::Message> msg;
-  Serialize(msg.get());
-  return msg.SerializeAsString();
-}
-
-std::vector<uint8_t> InterceptorConfig::SerializeAsArray() const {
-  ::protozero::HeapBuffered<::protozero::Message> msg;
-  Serialize(msg.get());
-  return msg.SerializeAsArray();
-}
-
-void InterceptorConfig::Serialize(::protozero::Message* msg) const {
-  // Field 1: name
-  if (_has_field_[1]) {
-    msg->AppendString(1, name_);
-  }
-
-  // Field 100: console_config
-  if (_has_field_[100]) {
-    msg->AppendString(100, console_config_);
-  }
-
-  msg->AppendRawProtoBytes(unknown_fields_.data(), unknown_fields_.size());
-}
-
-}  // namespace perfetto
-}  // namespace protos
-}  // namespace gen
-#if defined(__GNUC__) || defined(__clang__)
-#pragma GCC diagnostic pop
-#endif
-// gen_amalgamated begin source: gen/protos/perfetto/config/stress_test_config.gen.cc
-// gen_amalgamated begin header: gen/protos/perfetto/config/stress_test_config.gen.h
-// DO NOT EDIT. Autogenerated by Perfetto cppgen_plugin
-#ifndef PERFETTO_PROTOS_PROTOS_PERFETTO_CONFIG_STRESS_TEST_CONFIG_PROTO_CPP_H_
-#define PERFETTO_PROTOS_PROTOS_PERFETTO_CONFIG_STRESS_TEST_CONFIG_PROTO_CPP_H_
-
-#include <stdint.h>
-#include <bitset>
-#include <vector>
-#include <string>
-#include <type_traits>
-
-// gen_amalgamated expanded: #include "perfetto/protozero/cpp_message_obj.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/copyable_ptr.h"
-// gen_amalgamated expanded: #include "perfetto/base/export.h"
-
-namespace perfetto {
-namespace protos {
-namespace gen {
-class StressTestConfig;
-class StressTestConfig_WriterTiming;
-class TraceConfig;
-class TraceConfig_TraceFilter;
-class TraceConfig_IncidentReportConfig;
-class TraceConfig_IncrementalStateConfig;
-class TraceConfig_TriggerConfig;
-class TraceConfig_TriggerConfig_Trigger;
-class TraceConfig_GuardrailOverrides;
-class TraceConfig_StatsdMetadata;
-class TraceConfig_ProducerConfig;
-class TraceConfig_BuiltinDataSource;
-class TraceConfig_DataSource;
-class DataSourceConfig;
-class TestConfig;
-class TestConfig_DummyFields;
-class InterceptorConfig;
-class ChromeConfig;
-class TraceConfig_BufferConfig;
-enum TraceConfig_LockdownModeOperation : int;
-enum TraceConfig_CompressionType : int;
-enum TraceConfig_StatsdLogging : int;
-enum TraceConfig_TriggerConfig_TriggerMode : int;
-enum BuiltinClock : int;
-enum DataSourceConfig_SessionInitiator : int;
-enum ChromeConfig_ClientPriority : int;
-enum TraceConfig_BufferConfig_FillPolicy : int;
-}  // namespace perfetto
-}  // namespace protos
-}  // namespace gen
-
-namespace protozero {
-class Message;
-}  // namespace protozero
-
-namespace perfetto {
-namespace protos {
-namespace gen {
-
-class PERFETTO_EXPORT StressTestConfig : public ::protozero::CppMessageObj {
- public:
-  using WriterTiming = StressTestConfig_WriterTiming;
-  enum FieldNumbers {
-    kTraceConfigFieldNumber = 1,
-    kShmemSizeKbFieldNumber = 2,
-    kShmemPageSizeKbFieldNumber = 3,
-    kNumProcessesFieldNumber = 4,
-    kNumThreadsFieldNumber = 5,
-    kMaxEventsFieldNumber = 6,
-    kNestingFieldNumber = 7,
-    kSteadyStateTimingsFieldNumber = 8,
-    kBurstPeriodMsFieldNumber = 9,
-    kBurstDurationMsFieldNumber = 10,
-    kBurstTimingsFieldNumber = 11,
-  };
-
-  StressTestConfig();
-  ~StressTestConfig() override;
-  StressTestConfig(StressTestConfig&&) noexcept;
-  StressTestConfig& operator=(StressTestConfig&&);
-  StressTestConfig(const StressTestConfig&);
-  StressTestConfig& operator=(const StressTestConfig&);
-  bool operator==(const StressTestConfig&) const;
-  bool operator!=(const StressTestConfig& other) const { return !(*this == other); }
-
-  bool ParseFromArray(const void*, size_t) override;
-  std::string SerializeAsString() const override;
-  std::vector<uint8_t> SerializeAsArray() const override;
-  void Serialize(::protozero::Message*) const;
-
-  bool has_trace_config() const { return _has_field_[1]; }
-  const TraceConfig& trace_config() const { return *trace_config_; }
-  TraceConfig* mutable_trace_config() { _has_field_.set(1); return trace_config_.get(); }
-
-  bool has_shmem_size_kb() const { return _has_field_[2]; }
-  uint32_t shmem_size_kb() const { return shmem_size_kb_; }
-  void set_shmem_size_kb(uint32_t value) { shmem_size_kb_ = value; _has_field_.set(2); }
-
-  bool has_shmem_page_size_kb() const { return _has_field_[3]; }
-  uint32_t shmem_page_size_kb() const { return shmem_page_size_kb_; }
-  void set_shmem_page_size_kb(uint32_t value) { shmem_page_size_kb_ = value; _has_field_.set(3); }
-
-  bool has_num_processes() const { return _has_field_[4]; }
-  uint32_t num_processes() const { return num_processes_; }
-  void set_num_processes(uint32_t value) { num_processes_ = value; _has_field_.set(4); }
-
-  bool has_num_threads() const { return _has_field_[5]; }
-  uint32_t num_threads() const { return num_threads_; }
-  void set_num_threads(uint32_t value) { num_threads_ = value; _has_field_.set(5); }
-
-  bool has_max_events() const { return _has_field_[6]; }
-  uint32_t max_events() const { return max_events_; }
-  void set_max_events(uint32_t value) { max_events_ = value; _has_field_.set(6); }
-
-  bool has_nesting() const { return _has_field_[7]; }
-  uint32_t nesting() const { return nesting_; }
-  void set_nesting(uint32_t value) { nesting_ = value; _has_field_.set(7); }
-
-  bool has_steady_state_timings() const { return _has_field_[8]; }
-  const StressTestConfig_WriterTiming& steady_state_timings() const { return *steady_state_timings_; }
-  StressTestConfig_WriterTiming* mutable_steady_state_timings() { _has_field_.set(8); return steady_state_timings_.get(); }
-
-  bool has_burst_period_ms() const { return _has_field_[9]; }
-  uint32_t burst_period_ms() const { return burst_period_ms_; }
-  void set_burst_period_ms(uint32_t value) { burst_period_ms_ = value; _has_field_.set(9); }
-
-  bool has_burst_duration_ms() const { return _has_field_[10]; }
-  uint32_t burst_duration_ms() const { return burst_duration_ms_; }
-  void set_burst_duration_ms(uint32_t value) { burst_duration_ms_ = value; _has_field_.set(10); }
-
-  bool has_burst_timings() const { return _has_field_[11]; }
-  const StressTestConfig_WriterTiming& burst_timings() const { return *burst_timings_; }
-  StressTestConfig_WriterTiming* mutable_burst_timings() { _has_field_.set(11); return burst_timings_.get(); }
-
- private:
-  ::protozero::CopyablePtr<TraceConfig> trace_config_;
-  uint32_t shmem_size_kb_{};
-  uint32_t shmem_page_size_kb_{};
-  uint32_t num_processes_{};
-  uint32_t num_threads_{};
-  uint32_t max_events_{};
-  uint32_t nesting_{};
-  ::protozero::CopyablePtr<StressTestConfig_WriterTiming> steady_state_timings_;
-  uint32_t burst_period_ms_{};
-  uint32_t burst_duration_ms_{};
-  ::protozero::CopyablePtr<StressTestConfig_WriterTiming> burst_timings_;
-
-  // Allows to preserve unknown protobuf fields for compatibility
-  // with future versions of .proto files.
-  std::string unknown_fields_;
-
-  std::bitset<12> _has_field_{};
-};
-
-
-class PERFETTO_EXPORT StressTestConfig_WriterTiming : public ::protozero::CppMessageObj {
- public:
-  enum FieldNumbers {
-    kPayloadMeanFieldNumber = 1,
-    kPayloadStddevFieldNumber = 2,
-    kRateMeanFieldNumber = 3,
-    kRateStddevFieldNumber = 4,
-    kPayloadWriteTimeMsFieldNumber = 5,
-  };
-
-  StressTestConfig_WriterTiming();
-  ~StressTestConfig_WriterTiming() override;
-  StressTestConfig_WriterTiming(StressTestConfig_WriterTiming&&) noexcept;
-  StressTestConfig_WriterTiming& operator=(StressTestConfig_WriterTiming&&);
-  StressTestConfig_WriterTiming(const StressTestConfig_WriterTiming&);
-  StressTestConfig_WriterTiming& operator=(const StressTestConfig_WriterTiming&);
-  bool operator==(const StressTestConfig_WriterTiming&) const;
-  bool operator!=(const StressTestConfig_WriterTiming& other) const { return !(*this == other); }
-
-  bool ParseFromArray(const void*, size_t) override;
-  std::string SerializeAsString() const override;
-  std::vector<uint8_t> SerializeAsArray() const override;
-  void Serialize(::protozero::Message*) const;
-
-  bool has_payload_mean() const { return _has_field_[1]; }
-  double payload_mean() const { return payload_mean_; }
-  void set_payload_mean(double value) { payload_mean_ = value; _has_field_.set(1); }
-
-  bool has_payload_stddev() const { return _has_field_[2]; }
-  double payload_stddev() const { return payload_stddev_; }
-  void set_payload_stddev(double value) { payload_stddev_ = value; _has_field_.set(2); }
-
-  bool has_rate_mean() const { return _has_field_[3]; }
-  double rate_mean() const { return rate_mean_; }
-  void set_rate_mean(double value) { rate_mean_ = value; _has_field_.set(3); }
-
-  bool has_rate_stddev() const { return _has_field_[4]; }
-  double rate_stddev() const { return rate_stddev_; }
-  void set_rate_stddev(double value) { rate_stddev_ = value; _has_field_.set(4); }
-
-  bool has_payload_write_time_ms() const { return _has_field_[5]; }
-  uint32_t payload_write_time_ms() const { return payload_write_time_ms_; }
-  void set_payload_write_time_ms(uint32_t value) { payload_write_time_ms_ = value; _has_field_.set(5); }
-
- private:
-  double payload_mean_{};
-  double payload_stddev_{};
-  double rate_mean_{};
-  double rate_stddev_{};
-  uint32_t payload_write_time_ms_{};
-
-  // Allows to preserve unknown protobuf fields for compatibility
-  // with future versions of .proto files.
-  std::string unknown_fields_;
-
-  std::bitset<6> _has_field_{};
-};
-
-}  // namespace perfetto
-}  // namespace protos
-}  // namespace gen
-
-#endif  // PERFETTO_PROTOS_PROTOS_PERFETTO_CONFIG_STRESS_TEST_CONFIG_PROTO_CPP_H_
-// gen_amalgamated expanded: #include "perfetto/protozero/message.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/packed_repeated_fields.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/proto_decoder.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/scattered_heap_buffer.h"
-// DO NOT EDIT. Autogenerated by Perfetto cppgen_plugin
-#if defined(__GNUC__) || defined(__clang__)
-#pragma GCC diagnostic push
-#pragma GCC diagnostic ignored "-Wfloat-equal"
-#endif
-// gen_amalgamated expanded: #include "protos/perfetto/config/stress_test_config.gen.h"
-// gen_amalgamated expanded: #include "protos/perfetto/config/trace_config.gen.h"
-// gen_amalgamated expanded: #include "protos/perfetto/common/builtin_clock.gen.h"
-// gen_amalgamated expanded: #include "protos/perfetto/config/data_source_config.gen.h"
-// gen_amalgamated expanded: #include "protos/perfetto/config/track_event/track_event_config.gen.h"
-// gen_amalgamated expanded: #include "protos/perfetto/config/test_config.gen.h"
-// gen_amalgamated expanded: #include "protos/perfetto/config/sys_stats/sys_stats_config.gen.h"
-// gen_amalgamated expanded: #include "protos/perfetto/common/sys_stats_counters.gen.h"
-// gen_amalgamated expanded: #include "protos/perfetto/config/profiling/perf_event_config.gen.h"
-// gen_amalgamated expanded: #include "protos/perfetto/common/perf_events.gen.h"
-// gen_amalgamated expanded: #include "protos/perfetto/config/profiling/java_hprof_config.gen.h"
-// gen_amalgamated expanded: #include "protos/perfetto/config/profiling/heapprofd_config.gen.h"
-// gen_amalgamated expanded: #include "protos/perfetto/config/process_stats/process_stats_config.gen.h"
-// gen_amalgamated expanded: #include "protos/perfetto/config/power/android_power_config.gen.h"
-// gen_amalgamated expanded: #include "protos/perfetto/config/interceptor_config.gen.h"
-// gen_amalgamated expanded: #include "protos/perfetto/config/interceptors/console_config.gen.h"
-// gen_amalgamated expanded: #include "protos/perfetto/config/inode_file/inode_file_config.gen.h"
-// gen_amalgamated expanded: #include "protos/perfetto/config/gpu/vulkan_memory_config.gen.h"
-// gen_amalgamated expanded: #include "protos/perfetto/config/gpu/gpu_counter_config.gen.h"
-// gen_amalgamated expanded: #include "protos/perfetto/config/ftrace/ftrace_config.gen.h"
-// gen_amalgamated expanded: #include "protos/perfetto/config/chrome/chrome_config.gen.h"
-// gen_amalgamated expanded: #include "protos/perfetto/config/android/packages_list_config.gen.h"
-// gen_amalgamated expanded: #include "protos/perfetto/config/android/android_polled_state_config.gen.h"
-// gen_amalgamated expanded: #include "protos/perfetto/config/android/android_log_config.gen.h"
-// gen_amalgamated expanded: #include "protos/perfetto/common/android_log_constants.gen.h"
-
-namespace perfetto {
-namespace protos {
-namespace gen {
-
-StressTestConfig::StressTestConfig() = default;
-StressTestConfig::~StressTestConfig() = default;
-StressTestConfig::StressTestConfig(const StressTestConfig&) = default;
-StressTestConfig& StressTestConfig::operator=(const StressTestConfig&) = default;
-StressTestConfig::StressTestConfig(StressTestConfig&&) noexcept = default;
-StressTestConfig& StressTestConfig::operator=(StressTestConfig&&) = default;
-
-bool StressTestConfig::operator==(const StressTestConfig& other) const {
-  return unknown_fields_ == other.unknown_fields_
-   && trace_config_ == other.trace_config_
-   && shmem_size_kb_ == other.shmem_size_kb_
-   && shmem_page_size_kb_ == other.shmem_page_size_kb_
-   && num_processes_ == other.num_processes_
-   && num_threads_ == other.num_threads_
-   && max_events_ == other.max_events_
-   && nesting_ == other.nesting_
-   && steady_state_timings_ == other.steady_state_timings_
-   && burst_period_ms_ == other.burst_period_ms_
-   && burst_duration_ms_ == other.burst_duration_ms_
-   && burst_timings_ == other.burst_timings_;
-}
-
-bool StressTestConfig::ParseFromArray(const void* raw, size_t size) {
-  unknown_fields_.clear();
-  bool packed_error = false;
-
-  ::protozero::ProtoDecoder dec(raw, size);
-  for (auto field = dec.ReadField(); field.valid(); field = dec.ReadField()) {
-    if (field.id() < _has_field_.size()) {
-      _has_field_.set(field.id());
-    }
-    switch (field.id()) {
-      case 1 /* trace_config */:
-        (*trace_config_).ParseFromArray(field.data(), field.size());
-        break;
-      case 2 /* shmem_size_kb */:
-        field.get(&shmem_size_kb_);
-        break;
-      case 3 /* shmem_page_size_kb */:
-        field.get(&shmem_page_size_kb_);
-        break;
-      case 4 /* num_processes */:
-        field.get(&num_processes_);
-        break;
-      case 5 /* num_threads */:
-        field.get(&num_threads_);
-        break;
-      case 6 /* max_events */:
-        field.get(&max_events_);
-        break;
-      case 7 /* nesting */:
-        field.get(&nesting_);
-        break;
-      case 8 /* steady_state_timings */:
-        (*steady_state_timings_).ParseFromArray(field.data(), field.size());
-        break;
-      case 9 /* burst_period_ms */:
-        field.get(&burst_period_ms_);
-        break;
-      case 10 /* burst_duration_ms */:
-        field.get(&burst_duration_ms_);
-        break;
-      case 11 /* burst_timings */:
-        (*burst_timings_).ParseFromArray(field.data(), field.size());
-        break;
-      default:
-        field.SerializeAndAppendTo(&unknown_fields_);
-        break;
-    }
-  }
-  return !packed_error && !dec.bytes_left();
-}
-
-std::string StressTestConfig::SerializeAsString() const {
-  ::protozero::HeapBuffered<::protozero::Message> msg;
-  Serialize(msg.get());
-  return msg.SerializeAsString();
-}
-
-std::vector<uint8_t> StressTestConfig::SerializeAsArray() const {
-  ::protozero::HeapBuffered<::protozero::Message> msg;
-  Serialize(msg.get());
-  return msg.SerializeAsArray();
-}
-
-void StressTestConfig::Serialize(::protozero::Message* msg) const {
-  // Field 1: trace_config
-  if (_has_field_[1]) {
-    (*trace_config_).Serialize(msg->BeginNestedMessage<::protozero::Message>(1));
-  }
-
-  // Field 2: shmem_size_kb
-  if (_has_field_[2]) {
-    msg->AppendVarInt(2, shmem_size_kb_);
-  }
-
-  // Field 3: shmem_page_size_kb
-  if (_has_field_[3]) {
-    msg->AppendVarInt(3, shmem_page_size_kb_);
-  }
-
-  // Field 4: num_processes
-  if (_has_field_[4]) {
-    msg->AppendVarInt(4, num_processes_);
-  }
-
-  // Field 5: num_threads
-  if (_has_field_[5]) {
-    msg->AppendVarInt(5, num_threads_);
-  }
-
-  // Field 6: max_events
-  if (_has_field_[6]) {
-    msg->AppendVarInt(6, max_events_);
-  }
-
-  // Field 7: nesting
-  if (_has_field_[7]) {
-    msg->AppendVarInt(7, nesting_);
-  }
-
-  // Field 8: steady_state_timings
-  if (_has_field_[8]) {
-    (*steady_state_timings_).Serialize(msg->BeginNestedMessage<::protozero::Message>(8));
-  }
-
-  // Field 9: burst_period_ms
-  if (_has_field_[9]) {
-    msg->AppendVarInt(9, burst_period_ms_);
-  }
-
-  // Field 10: burst_duration_ms
-  if (_has_field_[10]) {
-    msg->AppendVarInt(10, burst_duration_ms_);
-  }
-
-  // Field 11: burst_timings
-  if (_has_field_[11]) {
-    (*burst_timings_).Serialize(msg->BeginNestedMessage<::protozero::Message>(11));
-  }
-
-  msg->AppendRawProtoBytes(unknown_fields_.data(), unknown_fields_.size());
-}
-
-
-StressTestConfig_WriterTiming::StressTestConfig_WriterTiming() = default;
-StressTestConfig_WriterTiming::~StressTestConfig_WriterTiming() = default;
-StressTestConfig_WriterTiming::StressTestConfig_WriterTiming(const StressTestConfig_WriterTiming&) = default;
-StressTestConfig_WriterTiming& StressTestConfig_WriterTiming::operator=(const StressTestConfig_WriterTiming&) = default;
-StressTestConfig_WriterTiming::StressTestConfig_WriterTiming(StressTestConfig_WriterTiming&&) noexcept = default;
-StressTestConfig_WriterTiming& StressTestConfig_WriterTiming::operator=(StressTestConfig_WriterTiming&&) = default;
-
-bool StressTestConfig_WriterTiming::operator==(const StressTestConfig_WriterTiming& other) const {
-  return unknown_fields_ == other.unknown_fields_
-   && payload_mean_ == other.payload_mean_
-   && payload_stddev_ == other.payload_stddev_
-   && rate_mean_ == other.rate_mean_
-   && rate_stddev_ == other.rate_stddev_
-   && payload_write_time_ms_ == other.payload_write_time_ms_;
-}
-
-bool StressTestConfig_WriterTiming::ParseFromArray(const void* raw, size_t size) {
-  unknown_fields_.clear();
-  bool packed_error = false;
-
-  ::protozero::ProtoDecoder dec(raw, size);
-  for (auto field = dec.ReadField(); field.valid(); field = dec.ReadField()) {
-    if (field.id() < _has_field_.size()) {
-      _has_field_.set(field.id());
-    }
-    switch (field.id()) {
-      case 1 /* payload_mean */:
-        field.get(&payload_mean_);
-        break;
-      case 2 /* payload_stddev */:
-        field.get(&payload_stddev_);
-        break;
-      case 3 /* rate_mean */:
-        field.get(&rate_mean_);
-        break;
-      case 4 /* rate_stddev */:
-        field.get(&rate_stddev_);
-        break;
-      case 5 /* payload_write_time_ms */:
-        field.get(&payload_write_time_ms_);
-        break;
-      default:
-        field.SerializeAndAppendTo(&unknown_fields_);
-        break;
-    }
-  }
-  return !packed_error && !dec.bytes_left();
-}
-
-std::string StressTestConfig_WriterTiming::SerializeAsString() const {
-  ::protozero::HeapBuffered<::protozero::Message> msg;
-  Serialize(msg.get());
-  return msg.SerializeAsString();
-}
-
-std::vector<uint8_t> StressTestConfig_WriterTiming::SerializeAsArray() const {
-  ::protozero::HeapBuffered<::protozero::Message> msg;
-  Serialize(msg.get());
-  return msg.SerializeAsArray();
-}
-
-void StressTestConfig_WriterTiming::Serialize(::protozero::Message* msg) const {
-  // Field 1: payload_mean
-  if (_has_field_[1]) {
-    msg->AppendFixed(1, payload_mean_);
-  }
-
-  // Field 2: payload_stddev
-  if (_has_field_[2]) {
-    msg->AppendFixed(2, payload_stddev_);
-  }
-
-  // Field 3: rate_mean
-  if (_has_field_[3]) {
-    msg->AppendFixed(3, rate_mean_);
-  }
-
-  // Field 4: rate_stddev
-  if (_has_field_[4]) {
-    msg->AppendFixed(4, rate_stddev_);
-  }
-
-  // Field 5: payload_write_time_ms
-  if (_has_field_[5]) {
-    msg->AppendVarInt(5, payload_write_time_ms_);
-  }
-
-  msg->AppendRawProtoBytes(unknown_fields_.data(), unknown_fields_.size());
-}
-
-}  // namespace perfetto
-}  // namespace protos
-}  // namespace gen
-#if defined(__GNUC__) || defined(__clang__)
-#pragma GCC diagnostic pop
-#endif
-// gen_amalgamated begin source: gen/protos/perfetto/config/test_config.gen.cc
-// gen_amalgamated expanded: #include "perfetto/protozero/message.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/packed_repeated_fields.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/proto_decoder.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/scattered_heap_buffer.h"
-// DO NOT EDIT. Autogenerated by Perfetto cppgen_plugin
-#if defined(__GNUC__) || defined(__clang__)
-#pragma GCC diagnostic push
-#pragma GCC diagnostic ignored "-Wfloat-equal"
-#endif
-// gen_amalgamated expanded: #include "protos/perfetto/config/test_config.gen.h"
-
-namespace perfetto {
-namespace protos {
-namespace gen {
-
-TestConfig::TestConfig() = default;
-TestConfig::~TestConfig() = default;
-TestConfig::TestConfig(const TestConfig&) = default;
-TestConfig& TestConfig::operator=(const TestConfig&) = default;
-TestConfig::TestConfig(TestConfig&&) noexcept = default;
-TestConfig& TestConfig::operator=(TestConfig&&) = default;
-
-bool TestConfig::operator==(const TestConfig& other) const {
-  return unknown_fields_ == other.unknown_fields_
-   && message_count_ == other.message_count_
-   && max_messages_per_second_ == other.max_messages_per_second_
-   && seed_ == other.seed_
-   && message_size_ == other.message_size_
-   && send_batch_on_register_ == other.send_batch_on_register_
-   && dummy_fields_ == other.dummy_fields_;
-}
-
-bool TestConfig::ParseFromArray(const void* raw, size_t size) {
-  unknown_fields_.clear();
-  bool packed_error = false;
-
-  ::protozero::ProtoDecoder dec(raw, size);
-  for (auto field = dec.ReadField(); field.valid(); field = dec.ReadField()) {
-    if (field.id() < _has_field_.size()) {
-      _has_field_.set(field.id());
-    }
-    switch (field.id()) {
-      case 1 /* message_count */:
-        field.get(&message_count_);
-        break;
-      case 2 /* max_messages_per_second */:
-        field.get(&max_messages_per_second_);
-        break;
-      case 3 /* seed */:
-        field.get(&seed_);
-        break;
-      case 4 /* message_size */:
-        field.get(&message_size_);
-        break;
-      case 5 /* send_batch_on_register */:
-        field.get(&send_batch_on_register_);
-        break;
-      case 6 /* dummy_fields */:
-        (*dummy_fields_).ParseFromArray(field.data(), field.size());
-        break;
-      default:
-        field.SerializeAndAppendTo(&unknown_fields_);
-        break;
-    }
-  }
-  return !packed_error && !dec.bytes_left();
-}
-
-std::string TestConfig::SerializeAsString() const {
-  ::protozero::HeapBuffered<::protozero::Message> msg;
-  Serialize(msg.get());
-  return msg.SerializeAsString();
-}
-
-std::vector<uint8_t> TestConfig::SerializeAsArray() const {
-  ::protozero::HeapBuffered<::protozero::Message> msg;
-  Serialize(msg.get());
-  return msg.SerializeAsArray();
-}
-
-void TestConfig::Serialize(::protozero::Message* msg) const {
-  // Field 1: message_count
-  if (_has_field_[1]) {
-    msg->AppendVarInt(1, message_count_);
-  }
-
-  // Field 2: max_messages_per_second
-  if (_has_field_[2]) {
-    msg->AppendVarInt(2, max_messages_per_second_);
-  }
-
-  // Field 3: seed
-  if (_has_field_[3]) {
-    msg->AppendVarInt(3, seed_);
-  }
-
-  // Field 4: message_size
-  if (_has_field_[4]) {
-    msg->AppendVarInt(4, message_size_);
-  }
-
-  // Field 5: send_batch_on_register
-  if (_has_field_[5]) {
-    msg->AppendTinyVarInt(5, send_batch_on_register_);
-  }
-
-  // Field 6: dummy_fields
-  if (_has_field_[6]) {
-    (*dummy_fields_).Serialize(msg->BeginNestedMessage<::protozero::Message>(6));
-  }
-
-  msg->AppendRawProtoBytes(unknown_fields_.data(), unknown_fields_.size());
-}
-
-
-TestConfig_DummyFields::TestConfig_DummyFields() = default;
-TestConfig_DummyFields::~TestConfig_DummyFields() = default;
-TestConfig_DummyFields::TestConfig_DummyFields(const TestConfig_DummyFields&) = default;
-TestConfig_DummyFields& TestConfig_DummyFields::operator=(const TestConfig_DummyFields&) = default;
-TestConfig_DummyFields::TestConfig_DummyFields(TestConfig_DummyFields&&) noexcept = default;
-TestConfig_DummyFields& TestConfig_DummyFields::operator=(TestConfig_DummyFields&&) = default;
-
-bool TestConfig_DummyFields::operator==(const TestConfig_DummyFields& other) const {
-  return unknown_fields_ == other.unknown_fields_
-   && field_uint32_ == other.field_uint32_
-   && field_int32_ == other.field_int32_
-   && field_uint64_ == other.field_uint64_
-   && field_int64_ == other.field_int64_
-   && field_fixed64_ == other.field_fixed64_
-   && field_sfixed64_ == other.field_sfixed64_
-   && field_fixed32_ == other.field_fixed32_
-   && field_sfixed32_ == other.field_sfixed32_
-   && field_double_ == other.field_double_
-   && field_float_ == other.field_float_
-   && field_sint64_ == other.field_sint64_
-   && field_sint32_ == other.field_sint32_
-   && field_string_ == other.field_string_
-   && field_bytes_ == other.field_bytes_;
-}
-
-bool TestConfig_DummyFields::ParseFromArray(const void* raw, size_t size) {
-  unknown_fields_.clear();
-  bool packed_error = false;
-
-  ::protozero::ProtoDecoder dec(raw, size);
-  for (auto field = dec.ReadField(); field.valid(); field = dec.ReadField()) {
-    if (field.id() < _has_field_.size()) {
-      _has_field_.set(field.id());
-    }
-    switch (field.id()) {
-      case 1 /* field_uint32 */:
-        field.get(&field_uint32_);
-        break;
-      case 2 /* field_int32 */:
-        field.get(&field_int32_);
-        break;
-      case 3 /* field_uint64 */:
-        field.get(&field_uint64_);
-        break;
-      case 4 /* field_int64 */:
-        field.get(&field_int64_);
-        break;
-      case 5 /* field_fixed64 */:
-        field.get(&field_fixed64_);
-        break;
-      case 6 /* field_sfixed64 */:
-        field.get(&field_sfixed64_);
-        break;
-      case 7 /* field_fixed32 */:
-        field.get(&field_fixed32_);
-        break;
-      case 8 /* field_sfixed32 */:
-        field.get(&field_sfixed32_);
-        break;
-      case 9 /* field_double */:
-        field.get(&field_double_);
-        break;
-      case 10 /* field_float */:
-        field.get(&field_float_);
-        break;
-      case 11 /* field_sint64 */:
-        field.get_signed(&field_sint64_);
-        break;
-      case 12 /* field_sint32 */:
-        field.get_signed(&field_sint32_);
-        break;
-      case 13 /* field_string */:
-        field.get(&field_string_);
-        break;
-      case 14 /* field_bytes */:
-        field.get(&field_bytes_);
-        break;
-      default:
-        field.SerializeAndAppendTo(&unknown_fields_);
-        break;
-    }
-  }
-  return !packed_error && !dec.bytes_left();
-}
-
-std::string TestConfig_DummyFields::SerializeAsString() const {
-  ::protozero::HeapBuffered<::protozero::Message> msg;
-  Serialize(msg.get());
-  return msg.SerializeAsString();
-}
-
-std::vector<uint8_t> TestConfig_DummyFields::SerializeAsArray() const {
-  ::protozero::HeapBuffered<::protozero::Message> msg;
-  Serialize(msg.get());
-  return msg.SerializeAsArray();
-}
-
-void TestConfig_DummyFields::Serialize(::protozero::Message* msg) const {
-  // Field 1: field_uint32
-  if (_has_field_[1]) {
-    msg->AppendVarInt(1, field_uint32_);
-  }
-
-  // Field 2: field_int32
-  if (_has_field_[2]) {
-    msg->AppendVarInt(2, field_int32_);
-  }
-
-  // Field 3: field_uint64
-  if (_has_field_[3]) {
-    msg->AppendVarInt(3, field_uint64_);
-  }
-
-  // Field 4: field_int64
-  if (_has_field_[4]) {
-    msg->AppendVarInt(4, field_int64_);
-  }
-
-  // Field 5: field_fixed64
-  if (_has_field_[5]) {
-    msg->AppendFixed(5, field_fixed64_);
-  }
-
-  // Field 6: field_sfixed64
-  if (_has_field_[6]) {
-    msg->AppendFixed(6, field_sfixed64_);
-  }
-
-  // Field 7: field_fixed32
-  if (_has_field_[7]) {
-    msg->AppendFixed(7, field_fixed32_);
-  }
-
-  // Field 8: field_sfixed32
-  if (_has_field_[8]) {
-    msg->AppendFixed(8, field_sfixed32_);
-  }
-
-  // Field 9: field_double
-  if (_has_field_[9]) {
-    msg->AppendFixed(9, field_double_);
-  }
-
-  // Field 10: field_float
-  if (_has_field_[10]) {
-    msg->AppendFixed(10, field_float_);
-  }
-
-  // Field 11: field_sint64
-  if (_has_field_[11]) {
-    msg->AppendSignedVarInt(11, field_sint64_);
-  }
-
-  // Field 12: field_sint32
-  if (_has_field_[12]) {
-    msg->AppendSignedVarInt(12, field_sint32_);
-  }
-
-  // Field 13: field_string
-  if (_has_field_[13]) {
-    msg->AppendString(13, field_string_);
-  }
-
-  // Field 14: field_bytes
-  if (_has_field_[14]) {
-    msg->AppendString(14, field_bytes_);
-  }
-
-  msg->AppendRawProtoBytes(unknown_fields_.data(), unknown_fields_.size());
-}
-
-}  // namespace perfetto
-}  // namespace protos
-}  // namespace gen
-#if defined(__GNUC__) || defined(__clang__)
-#pragma GCC diagnostic pop
-#endif
-// gen_amalgamated begin source: gen/protos/perfetto/config/trace_config.gen.cc
-// gen_amalgamated expanded: #include "perfetto/protozero/message.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/packed_repeated_fields.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/proto_decoder.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/scattered_heap_buffer.h"
-// DO NOT EDIT. Autogenerated by Perfetto cppgen_plugin
-#if defined(__GNUC__) || defined(__clang__)
-#pragma GCC diagnostic push
-#pragma GCC diagnostic ignored "-Wfloat-equal"
-#endif
-// gen_amalgamated expanded: #include "protos/perfetto/config/trace_config.gen.h"
-// gen_amalgamated expanded: #include "protos/perfetto/common/builtin_clock.gen.h"
-// gen_amalgamated expanded: #include "protos/perfetto/config/data_source_config.gen.h"
-// gen_amalgamated expanded: #include "protos/perfetto/config/track_event/track_event_config.gen.h"
-// gen_amalgamated expanded: #include "protos/perfetto/config/test_config.gen.h"
-// gen_amalgamated expanded: #include "protos/perfetto/config/sys_stats/sys_stats_config.gen.h"
-// gen_amalgamated expanded: #include "protos/perfetto/common/sys_stats_counters.gen.h"
-// gen_amalgamated expanded: #include "protos/perfetto/config/profiling/perf_event_config.gen.h"
-// gen_amalgamated expanded: #include "protos/perfetto/common/perf_events.gen.h"
-// gen_amalgamated expanded: #include "protos/perfetto/config/profiling/java_hprof_config.gen.h"
-// gen_amalgamated expanded: #include "protos/perfetto/config/profiling/heapprofd_config.gen.h"
-// gen_amalgamated expanded: #include "protos/perfetto/config/process_stats/process_stats_config.gen.h"
-// gen_amalgamated expanded: #include "protos/perfetto/config/power/android_power_config.gen.h"
-// gen_amalgamated expanded: #include "protos/perfetto/config/interceptor_config.gen.h"
-// gen_amalgamated expanded: #include "protos/perfetto/config/interceptors/console_config.gen.h"
-// gen_amalgamated expanded: #include "protos/perfetto/config/inode_file/inode_file_config.gen.h"
-// gen_amalgamated expanded: #include "protos/perfetto/config/gpu/vulkan_memory_config.gen.h"
-// gen_amalgamated expanded: #include "protos/perfetto/config/gpu/gpu_counter_config.gen.h"
-// gen_amalgamated expanded: #include "protos/perfetto/config/ftrace/ftrace_config.gen.h"
-// gen_amalgamated expanded: #include "protos/perfetto/config/chrome/chrome_config.gen.h"
-// gen_amalgamated expanded: #include "protos/perfetto/config/android/packages_list_config.gen.h"
-// gen_amalgamated expanded: #include "protos/perfetto/config/android/android_polled_state_config.gen.h"
-// gen_amalgamated expanded: #include "protos/perfetto/config/android/android_log_config.gen.h"
-// gen_amalgamated expanded: #include "protos/perfetto/common/android_log_constants.gen.h"
-
-namespace perfetto {
-namespace protos {
-namespace gen {
-
-TraceConfig::TraceConfig() = default;
-TraceConfig::~TraceConfig() = default;
-TraceConfig::TraceConfig(const TraceConfig&) = default;
-TraceConfig& TraceConfig::operator=(const TraceConfig&) = default;
-TraceConfig::TraceConfig(TraceConfig&&) noexcept = default;
-TraceConfig& TraceConfig::operator=(TraceConfig&&) = default;
-
-bool TraceConfig::operator==(const TraceConfig& other) const {
-  return unknown_fields_ == other.unknown_fields_
-   && buffers_ == other.buffers_
-   && data_sources_ == other.data_sources_
-   && builtin_data_sources_ == other.builtin_data_sources_
-   && duration_ms_ == other.duration_ms_
-   && enable_extra_guardrails_ == other.enable_extra_guardrails_
-   && lockdown_mode_ == other.lockdown_mode_
-   && producers_ == other.producers_
-   && statsd_metadata_ == other.statsd_metadata_
-   && write_into_file_ == other.write_into_file_
-   && output_path_ == other.output_path_
-   && file_write_period_ms_ == other.file_write_period_ms_
-   && max_file_size_bytes_ == other.max_file_size_bytes_
-   && guardrail_overrides_ == other.guardrail_overrides_
-   && deferred_start_ == other.deferred_start_
-   && flush_period_ms_ == other.flush_period_ms_
-   && flush_timeout_ms_ == other.flush_timeout_ms_
-   && data_source_stop_timeout_ms_ == other.data_source_stop_timeout_ms_
-   && notify_traceur_ == other.notify_traceur_
-   && bugreport_score_ == other.bugreport_score_
-   && trigger_config_ == other.trigger_config_
-   && activate_triggers_ == other.activate_triggers_
-   && incremental_state_config_ == other.incremental_state_config_
-   && allow_user_build_tracing_ == other.allow_user_build_tracing_
-   && unique_session_name_ == other.unique_session_name_
-   && compression_type_ == other.compression_type_
-   && incident_report_config_ == other.incident_report_config_
-   && statsd_logging_ == other.statsd_logging_
-   && trace_uuid_msb_ == other.trace_uuid_msb_
-   && trace_uuid_lsb_ == other.trace_uuid_lsb_
-   && trace_filter_ == other.trace_filter_;
-}
-
-int TraceConfig::buffers_size() const { return static_cast<int>(buffers_.size()); }
-void TraceConfig::clear_buffers() { buffers_.clear(); }
-TraceConfig_BufferConfig* TraceConfig::add_buffers() { buffers_.emplace_back(); return &buffers_.back(); }
-int TraceConfig::data_sources_size() const { return static_cast<int>(data_sources_.size()); }
-void TraceConfig::clear_data_sources() { data_sources_.clear(); }
-TraceConfig_DataSource* TraceConfig::add_data_sources() { data_sources_.emplace_back(); return &data_sources_.back(); }
-int TraceConfig::producers_size() const { return static_cast<int>(producers_.size()); }
-void TraceConfig::clear_producers() { producers_.clear(); }
-TraceConfig_ProducerConfig* TraceConfig::add_producers() { producers_.emplace_back(); return &producers_.back(); }
-bool TraceConfig::ParseFromArray(const void* raw, size_t size) {
-  buffers_.clear();
-  data_sources_.clear();
-  producers_.clear();
-  activate_triggers_.clear();
-  unknown_fields_.clear();
-  bool packed_error = false;
-
-  ::protozero::ProtoDecoder dec(raw, size);
-  for (auto field = dec.ReadField(); field.valid(); field = dec.ReadField()) {
-    if (field.id() < _has_field_.size()) {
-      _has_field_.set(field.id());
-    }
-    switch (field.id()) {
-      case 1 /* buffers */:
-        buffers_.emplace_back();
-        buffers_.back().ParseFromArray(field.data(), field.size());
-        break;
-      case 2 /* data_sources */:
-        data_sources_.emplace_back();
-        data_sources_.back().ParseFromArray(field.data(), field.size());
-        break;
-      case 20 /* builtin_data_sources */:
-        (*builtin_data_sources_).ParseFromArray(field.data(), field.size());
-        break;
-      case 3 /* duration_ms */:
-        field.get(&duration_ms_);
-        break;
-      case 4 /* enable_extra_guardrails */:
-        field.get(&enable_extra_guardrails_);
-        break;
-      case 5 /* lockdown_mode */:
-        field.get(&lockdown_mode_);
-        break;
-      case 6 /* producers */:
-        producers_.emplace_back();
-        producers_.back().ParseFromArray(field.data(), field.size());
-        break;
-      case 7 /* statsd_metadata */:
-        (*statsd_metadata_).ParseFromArray(field.data(), field.size());
-        break;
-      case 8 /* write_into_file */:
-        field.get(&write_into_file_);
-        break;
-      case 29 /* output_path */:
-        field.get(&output_path_);
-        break;
-      case 9 /* file_write_period_ms */:
-        field.get(&file_write_period_ms_);
-        break;
-      case 10 /* max_file_size_bytes */:
-        field.get(&max_file_size_bytes_);
-        break;
-      case 11 /* guardrail_overrides */:
-        (*guardrail_overrides_).ParseFromArray(field.data(), field.size());
-        break;
-      case 12 /* deferred_start */:
-        field.get(&deferred_start_);
-        break;
-      case 13 /* flush_period_ms */:
-        field.get(&flush_period_ms_);
-        break;
-      case 14 /* flush_timeout_ms */:
-        field.get(&flush_timeout_ms_);
-        break;
-      case 23 /* data_source_stop_timeout_ms */:
-        field.get(&data_source_stop_timeout_ms_);
-        break;
-      case 16 /* notify_traceur */:
-        field.get(&notify_traceur_);
-        break;
-      case 30 /* bugreport_score */:
-        field.get(&bugreport_score_);
-        break;
-      case 17 /* trigger_config */:
-        (*trigger_config_).ParseFromArray(field.data(), field.size());
-        break;
-      case 18 /* activate_triggers */:
-        activate_triggers_.emplace_back();
-        field.get(&activate_triggers_.back());
-        break;
-      case 21 /* incremental_state_config */:
-        (*incremental_state_config_).ParseFromArray(field.data(), field.size());
-        break;
-      case 19 /* allow_user_build_tracing */:
-        field.get(&allow_user_build_tracing_);
-        break;
-      case 22 /* unique_session_name */:
-        field.get(&unique_session_name_);
-        break;
-      case 24 /* compression_type */:
-        field.get(&compression_type_);
-        break;
-      case 25 /* incident_report_config */:
-        (*incident_report_config_).ParseFromArray(field.data(), field.size());
-        break;
-      case 31 /* statsd_logging */:
-        field.get(&statsd_logging_);
-        break;
-      case 27 /* trace_uuid_msb */:
-        field.get(&trace_uuid_msb_);
-        break;
-      case 28 /* trace_uuid_lsb */:
-        field.get(&trace_uuid_lsb_);
-        break;
-      case 32 /* trace_filter */:
-        (*trace_filter_).ParseFromArray(field.data(), field.size());
-        break;
-      default:
-        field.SerializeAndAppendTo(&unknown_fields_);
-        break;
-    }
-  }
-  return !packed_error && !dec.bytes_left();
-}
-
-std::string TraceConfig::SerializeAsString() const {
-  ::protozero::HeapBuffered<::protozero::Message> msg;
-  Serialize(msg.get());
-  return msg.SerializeAsString();
-}
-
-std::vector<uint8_t> TraceConfig::SerializeAsArray() const {
-  ::protozero::HeapBuffered<::protozero::Message> msg;
-  Serialize(msg.get());
-  return msg.SerializeAsArray();
-}
-
-void TraceConfig::Serialize(::protozero::Message* msg) const {
-  // Field 1: buffers
-  for (auto& it : buffers_) {
-    it.Serialize(msg->BeginNestedMessage<::protozero::Message>(1));
-  }
-
-  // Field 2: data_sources
-  for (auto& it : data_sources_) {
-    it.Serialize(msg->BeginNestedMessage<::protozero::Message>(2));
-  }
-
-  // Field 20: builtin_data_sources
-  if (_has_field_[20]) {
-    (*builtin_data_sources_).Serialize(msg->BeginNestedMessage<::protozero::Message>(20));
-  }
-
-  // Field 3: duration_ms
-  if (_has_field_[3]) {
-    msg->AppendVarInt(3, duration_ms_);
-  }
-
-  // Field 4: enable_extra_guardrails
-  if (_has_field_[4]) {
-    msg->AppendTinyVarInt(4, enable_extra_guardrails_);
-  }
-
-  // Field 5: lockdown_mode
-  if (_has_field_[5]) {
-    msg->AppendVarInt(5, lockdown_mode_);
-  }
-
-  // Field 6: producers
-  for (auto& it : producers_) {
-    it.Serialize(msg->BeginNestedMessage<::protozero::Message>(6));
-  }
-
-  // Field 7: statsd_metadata
-  if (_has_field_[7]) {
-    (*statsd_metadata_).Serialize(msg->BeginNestedMessage<::protozero::Message>(7));
-  }
-
-  // Field 8: write_into_file
-  if (_has_field_[8]) {
-    msg->AppendTinyVarInt(8, write_into_file_);
-  }
-
-  // Field 29: output_path
-  if (_has_field_[29]) {
-    msg->AppendString(29, output_path_);
-  }
-
-  // Field 9: file_write_period_ms
-  if (_has_field_[9]) {
-    msg->AppendVarInt(9, file_write_period_ms_);
-  }
-
-  // Field 10: max_file_size_bytes
-  if (_has_field_[10]) {
-    msg->AppendVarInt(10, max_file_size_bytes_);
-  }
-
-  // Field 11: guardrail_overrides
-  if (_has_field_[11]) {
-    (*guardrail_overrides_).Serialize(msg->BeginNestedMessage<::protozero::Message>(11));
-  }
-
-  // Field 12: deferred_start
-  if (_has_field_[12]) {
-    msg->AppendTinyVarInt(12, deferred_start_);
-  }
-
-  // Field 13: flush_period_ms
-  if (_has_field_[13]) {
-    msg->AppendVarInt(13, flush_period_ms_);
-  }
-
-  // Field 14: flush_timeout_ms
-  if (_has_field_[14]) {
-    msg->AppendVarInt(14, flush_timeout_ms_);
-  }
-
-  // Field 23: data_source_stop_timeout_ms
-  if (_has_field_[23]) {
-    msg->AppendVarInt(23, data_source_stop_timeout_ms_);
-  }
-
-  // Field 16: notify_traceur
-  if (_has_field_[16]) {
-    msg->AppendTinyVarInt(16, notify_traceur_);
-  }
-
-  // Field 30: bugreport_score
-  if (_has_field_[30]) {
-    msg->AppendVarInt(30, bugreport_score_);
-  }
-
-  // Field 17: trigger_config
-  if (_has_field_[17]) {
-    (*trigger_config_).Serialize(msg->BeginNestedMessage<::protozero::Message>(17));
-  }
-
-  // Field 18: activate_triggers
-  for (auto& it : activate_triggers_) {
-    msg->AppendString(18, it);
-  }
-
-  // Field 21: incremental_state_config
-  if (_has_field_[21]) {
-    (*incremental_state_config_).Serialize(msg->BeginNestedMessage<::protozero::Message>(21));
-  }
-
-  // Field 19: allow_user_build_tracing
-  if (_has_field_[19]) {
-    msg->AppendTinyVarInt(19, allow_user_build_tracing_);
-  }
-
-  // Field 22: unique_session_name
-  if (_has_field_[22]) {
-    msg->AppendString(22, unique_session_name_);
-  }
-
-  // Field 24: compression_type
-  if (_has_field_[24]) {
-    msg->AppendVarInt(24, compression_type_);
-  }
-
-  // Field 25: incident_report_config
-  if (_has_field_[25]) {
-    (*incident_report_config_).Serialize(msg->BeginNestedMessage<::protozero::Message>(25));
-  }
-
-  // Field 31: statsd_logging
-  if (_has_field_[31]) {
-    msg->AppendVarInt(31, statsd_logging_);
-  }
-
-  // Field 27: trace_uuid_msb
-  if (_has_field_[27]) {
-    msg->AppendVarInt(27, trace_uuid_msb_);
-  }
-
-  // Field 28: trace_uuid_lsb
-  if (_has_field_[28]) {
-    msg->AppendVarInt(28, trace_uuid_lsb_);
-  }
-
-  // Field 32: trace_filter
-  if (_has_field_[32]) {
-    (*trace_filter_).Serialize(msg->BeginNestedMessage<::protozero::Message>(32));
-  }
-
-  msg->AppendRawProtoBytes(unknown_fields_.data(), unknown_fields_.size());
-}
-
-
-TraceConfig_TraceFilter::TraceConfig_TraceFilter() = default;
-TraceConfig_TraceFilter::~TraceConfig_TraceFilter() = default;
-TraceConfig_TraceFilter::TraceConfig_TraceFilter(const TraceConfig_TraceFilter&) = default;
-TraceConfig_TraceFilter& TraceConfig_TraceFilter::operator=(const TraceConfig_TraceFilter&) = default;
-TraceConfig_TraceFilter::TraceConfig_TraceFilter(TraceConfig_TraceFilter&&) noexcept = default;
-TraceConfig_TraceFilter& TraceConfig_TraceFilter::operator=(TraceConfig_TraceFilter&&) = default;
-
-bool TraceConfig_TraceFilter::operator==(const TraceConfig_TraceFilter& other) const {
-  return unknown_fields_ == other.unknown_fields_
-   && bytecode_ == other.bytecode_;
-}
-
-bool TraceConfig_TraceFilter::ParseFromArray(const void* raw, size_t size) {
-  unknown_fields_.clear();
-  bool packed_error = false;
-
-  ::protozero::ProtoDecoder dec(raw, size);
-  for (auto field = dec.ReadField(); field.valid(); field = dec.ReadField()) {
-    if (field.id() < _has_field_.size()) {
-      _has_field_.set(field.id());
-    }
-    switch (field.id()) {
-      case 1 /* bytecode */:
-        field.get(&bytecode_);
-        break;
-      default:
-        field.SerializeAndAppendTo(&unknown_fields_);
-        break;
-    }
-  }
-  return !packed_error && !dec.bytes_left();
-}
-
-std::string TraceConfig_TraceFilter::SerializeAsString() const {
-  ::protozero::HeapBuffered<::protozero::Message> msg;
-  Serialize(msg.get());
-  return msg.SerializeAsString();
-}
-
-std::vector<uint8_t> TraceConfig_TraceFilter::SerializeAsArray() const {
-  ::protozero::HeapBuffered<::protozero::Message> msg;
-  Serialize(msg.get());
-  return msg.SerializeAsArray();
-}
-
-void TraceConfig_TraceFilter::Serialize(::protozero::Message* msg) const {
-  // Field 1: bytecode
-  if (_has_field_[1]) {
-    msg->AppendString(1, bytecode_);
-  }
-
-  msg->AppendRawProtoBytes(unknown_fields_.data(), unknown_fields_.size());
-}
-
-
-TraceConfig_IncidentReportConfig::TraceConfig_IncidentReportConfig() = default;
-TraceConfig_IncidentReportConfig::~TraceConfig_IncidentReportConfig() = default;
-TraceConfig_IncidentReportConfig::TraceConfig_IncidentReportConfig(const TraceConfig_IncidentReportConfig&) = default;
-TraceConfig_IncidentReportConfig& TraceConfig_IncidentReportConfig::operator=(const TraceConfig_IncidentReportConfig&) = default;
-TraceConfig_IncidentReportConfig::TraceConfig_IncidentReportConfig(TraceConfig_IncidentReportConfig&&) noexcept = default;
-TraceConfig_IncidentReportConfig& TraceConfig_IncidentReportConfig::operator=(TraceConfig_IncidentReportConfig&&) = default;
-
-bool TraceConfig_IncidentReportConfig::operator==(const TraceConfig_IncidentReportConfig& other) const {
-  return unknown_fields_ == other.unknown_fields_
-   && destination_package_ == other.destination_package_
-   && destination_class_ == other.destination_class_
-   && privacy_level_ == other.privacy_level_
-   && skip_incidentd_ == other.skip_incidentd_
-   && skip_dropbox_ == other.skip_dropbox_;
-}
-
-bool TraceConfig_IncidentReportConfig::ParseFromArray(const void* raw, size_t size) {
-  unknown_fields_.clear();
-  bool packed_error = false;
-
-  ::protozero::ProtoDecoder dec(raw, size);
-  for (auto field = dec.ReadField(); field.valid(); field = dec.ReadField()) {
-    if (field.id() < _has_field_.size()) {
-      _has_field_.set(field.id());
-    }
-    switch (field.id()) {
-      case 1 /* destination_package */:
-        field.get(&destination_package_);
-        break;
-      case 2 /* destination_class */:
-        field.get(&destination_class_);
-        break;
-      case 3 /* privacy_level */:
-        field.get(&privacy_level_);
-        break;
-      case 5 /* skip_incidentd */:
-        field.get(&skip_incidentd_);
-        break;
-      case 4 /* skip_dropbox */:
-        field.get(&skip_dropbox_);
-        break;
-      default:
-        field.SerializeAndAppendTo(&unknown_fields_);
-        break;
-    }
-  }
-  return !packed_error && !dec.bytes_left();
-}
-
-std::string TraceConfig_IncidentReportConfig::SerializeAsString() const {
-  ::protozero::HeapBuffered<::protozero::Message> msg;
-  Serialize(msg.get());
-  return msg.SerializeAsString();
-}
-
-std::vector<uint8_t> TraceConfig_IncidentReportConfig::SerializeAsArray() const {
-  ::protozero::HeapBuffered<::protozero::Message> msg;
-  Serialize(msg.get());
-  return msg.SerializeAsArray();
-}
-
-void TraceConfig_IncidentReportConfig::Serialize(::protozero::Message* msg) const {
-  // Field 1: destination_package
-  if (_has_field_[1]) {
-    msg->AppendString(1, destination_package_);
-  }
-
-  // Field 2: destination_class
-  if (_has_field_[2]) {
-    msg->AppendString(2, destination_class_);
-  }
-
-  // Field 3: privacy_level
-  if (_has_field_[3]) {
-    msg->AppendVarInt(3, privacy_level_);
-  }
-
-  // Field 5: skip_incidentd
-  if (_has_field_[5]) {
-    msg->AppendTinyVarInt(5, skip_incidentd_);
-  }
-
-  // Field 4: skip_dropbox
-  if (_has_field_[4]) {
-    msg->AppendTinyVarInt(4, skip_dropbox_);
-  }
-
-  msg->AppendRawProtoBytes(unknown_fields_.data(), unknown_fields_.size());
-}
-
-
-TraceConfig_IncrementalStateConfig::TraceConfig_IncrementalStateConfig() = default;
-TraceConfig_IncrementalStateConfig::~TraceConfig_IncrementalStateConfig() = default;
-TraceConfig_IncrementalStateConfig::TraceConfig_IncrementalStateConfig(const TraceConfig_IncrementalStateConfig&) = default;
-TraceConfig_IncrementalStateConfig& TraceConfig_IncrementalStateConfig::operator=(const TraceConfig_IncrementalStateConfig&) = default;
-TraceConfig_IncrementalStateConfig::TraceConfig_IncrementalStateConfig(TraceConfig_IncrementalStateConfig&&) noexcept = default;
-TraceConfig_IncrementalStateConfig& TraceConfig_IncrementalStateConfig::operator=(TraceConfig_IncrementalStateConfig&&) = default;
-
-bool TraceConfig_IncrementalStateConfig::operator==(const TraceConfig_IncrementalStateConfig& other) const {
-  return unknown_fields_ == other.unknown_fields_
-   && clear_period_ms_ == other.clear_period_ms_;
-}
-
-bool TraceConfig_IncrementalStateConfig::ParseFromArray(const void* raw, size_t size) {
-  unknown_fields_.clear();
-  bool packed_error = false;
-
-  ::protozero::ProtoDecoder dec(raw, size);
-  for (auto field = dec.ReadField(); field.valid(); field = dec.ReadField()) {
-    if (field.id() < _has_field_.size()) {
-      _has_field_.set(field.id());
-    }
-    switch (field.id()) {
-      case 1 /* clear_period_ms */:
-        field.get(&clear_period_ms_);
-        break;
-      default:
-        field.SerializeAndAppendTo(&unknown_fields_);
-        break;
-    }
-  }
-  return !packed_error && !dec.bytes_left();
-}
-
-std::string TraceConfig_IncrementalStateConfig::SerializeAsString() const {
-  ::protozero::HeapBuffered<::protozero::Message> msg;
-  Serialize(msg.get());
-  return msg.SerializeAsString();
-}
-
-std::vector<uint8_t> TraceConfig_IncrementalStateConfig::SerializeAsArray() const {
-  ::protozero::HeapBuffered<::protozero::Message> msg;
-  Serialize(msg.get());
-  return msg.SerializeAsArray();
-}
-
-void TraceConfig_IncrementalStateConfig::Serialize(::protozero::Message* msg) const {
-  // Field 1: clear_period_ms
-  if (_has_field_[1]) {
-    msg->AppendVarInt(1, clear_period_ms_);
-  }
-
-  msg->AppendRawProtoBytes(unknown_fields_.data(), unknown_fields_.size());
-}
-
-
-TraceConfig_TriggerConfig::TraceConfig_TriggerConfig() = default;
-TraceConfig_TriggerConfig::~TraceConfig_TriggerConfig() = default;
-TraceConfig_TriggerConfig::TraceConfig_TriggerConfig(const TraceConfig_TriggerConfig&) = default;
-TraceConfig_TriggerConfig& TraceConfig_TriggerConfig::operator=(const TraceConfig_TriggerConfig&) = default;
-TraceConfig_TriggerConfig::TraceConfig_TriggerConfig(TraceConfig_TriggerConfig&&) noexcept = default;
-TraceConfig_TriggerConfig& TraceConfig_TriggerConfig::operator=(TraceConfig_TriggerConfig&&) = default;
-
-bool TraceConfig_TriggerConfig::operator==(const TraceConfig_TriggerConfig& other) const {
-  return unknown_fields_ == other.unknown_fields_
-   && trigger_mode_ == other.trigger_mode_
-   && triggers_ == other.triggers_
-   && trigger_timeout_ms_ == other.trigger_timeout_ms_;
-}
-
-int TraceConfig_TriggerConfig::triggers_size() const { return static_cast<int>(triggers_.size()); }
-void TraceConfig_TriggerConfig::clear_triggers() { triggers_.clear(); }
-TraceConfig_TriggerConfig_Trigger* TraceConfig_TriggerConfig::add_triggers() { triggers_.emplace_back(); return &triggers_.back(); }
-bool TraceConfig_TriggerConfig::ParseFromArray(const void* raw, size_t size) {
-  triggers_.clear();
-  unknown_fields_.clear();
-  bool packed_error = false;
-
-  ::protozero::ProtoDecoder dec(raw, size);
-  for (auto field = dec.ReadField(); field.valid(); field = dec.ReadField()) {
-    if (field.id() < _has_field_.size()) {
-      _has_field_.set(field.id());
-    }
-    switch (field.id()) {
-      case 1 /* trigger_mode */:
-        field.get(&trigger_mode_);
-        break;
-      case 2 /* triggers */:
-        triggers_.emplace_back();
-        triggers_.back().ParseFromArray(field.data(), field.size());
-        break;
-      case 3 /* trigger_timeout_ms */:
-        field.get(&trigger_timeout_ms_);
-        break;
-      default:
-        field.SerializeAndAppendTo(&unknown_fields_);
-        break;
-    }
-  }
-  return !packed_error && !dec.bytes_left();
-}
-
-std::string TraceConfig_TriggerConfig::SerializeAsString() const {
-  ::protozero::HeapBuffered<::protozero::Message> msg;
-  Serialize(msg.get());
-  return msg.SerializeAsString();
-}
-
-std::vector<uint8_t> TraceConfig_TriggerConfig::SerializeAsArray() const {
-  ::protozero::HeapBuffered<::protozero::Message> msg;
-  Serialize(msg.get());
-  return msg.SerializeAsArray();
-}
-
-void TraceConfig_TriggerConfig::Serialize(::protozero::Message* msg) const {
-  // Field 1: trigger_mode
-  if (_has_field_[1]) {
-    msg->AppendVarInt(1, trigger_mode_);
-  }
-
-  // Field 2: triggers
-  for (auto& it : triggers_) {
-    it.Serialize(msg->BeginNestedMessage<::protozero::Message>(2));
-  }
-
-  // Field 3: trigger_timeout_ms
-  if (_has_field_[3]) {
-    msg->AppendVarInt(3, trigger_timeout_ms_);
-  }
-
-  msg->AppendRawProtoBytes(unknown_fields_.data(), unknown_fields_.size());
-}
-
-
-TraceConfig_TriggerConfig_Trigger::TraceConfig_TriggerConfig_Trigger() = default;
-TraceConfig_TriggerConfig_Trigger::~TraceConfig_TriggerConfig_Trigger() = default;
-TraceConfig_TriggerConfig_Trigger::TraceConfig_TriggerConfig_Trigger(const TraceConfig_TriggerConfig_Trigger&) = default;
-TraceConfig_TriggerConfig_Trigger& TraceConfig_TriggerConfig_Trigger::operator=(const TraceConfig_TriggerConfig_Trigger&) = default;
-TraceConfig_TriggerConfig_Trigger::TraceConfig_TriggerConfig_Trigger(TraceConfig_TriggerConfig_Trigger&&) noexcept = default;
-TraceConfig_TriggerConfig_Trigger& TraceConfig_TriggerConfig_Trigger::operator=(TraceConfig_TriggerConfig_Trigger&&) = default;
-
-bool TraceConfig_TriggerConfig_Trigger::operator==(const TraceConfig_TriggerConfig_Trigger& other) const {
-  return unknown_fields_ == other.unknown_fields_
-   && name_ == other.name_
-   && producer_name_regex_ == other.producer_name_regex_
-   && stop_delay_ms_ == other.stop_delay_ms_
-   && max_per_24_h_ == other.max_per_24_h_
-   && skip_probability_ == other.skip_probability_;
-}
-
-bool TraceConfig_TriggerConfig_Trigger::ParseFromArray(const void* raw, size_t size) {
-  unknown_fields_.clear();
-  bool packed_error = false;
-
-  ::protozero::ProtoDecoder dec(raw, size);
-  for (auto field = dec.ReadField(); field.valid(); field = dec.ReadField()) {
-    if (field.id() < _has_field_.size()) {
-      _has_field_.set(field.id());
-    }
-    switch (field.id()) {
-      case 1 /* name */:
-        field.get(&name_);
-        break;
-      case 2 /* producer_name_regex */:
-        field.get(&producer_name_regex_);
-        break;
-      case 3 /* stop_delay_ms */:
-        field.get(&stop_delay_ms_);
-        break;
-      case 4 /* max_per_24_h */:
-        field.get(&max_per_24_h_);
-        break;
-      case 5 /* skip_probability */:
-        field.get(&skip_probability_);
-        break;
-      default:
-        field.SerializeAndAppendTo(&unknown_fields_);
-        break;
-    }
-  }
-  return !packed_error && !dec.bytes_left();
-}
-
-std::string TraceConfig_TriggerConfig_Trigger::SerializeAsString() const {
-  ::protozero::HeapBuffered<::protozero::Message> msg;
-  Serialize(msg.get());
-  return msg.SerializeAsString();
-}
-
-std::vector<uint8_t> TraceConfig_TriggerConfig_Trigger::SerializeAsArray() const {
-  ::protozero::HeapBuffered<::protozero::Message> msg;
-  Serialize(msg.get());
-  return msg.SerializeAsArray();
-}
-
-void TraceConfig_TriggerConfig_Trigger::Serialize(::protozero::Message* msg) const {
-  // Field 1: name
-  if (_has_field_[1]) {
-    msg->AppendString(1, name_);
-  }
-
-  // Field 2: producer_name_regex
-  if (_has_field_[2]) {
-    msg->AppendString(2, producer_name_regex_);
-  }
-
-  // Field 3: stop_delay_ms
-  if (_has_field_[3]) {
-    msg->AppendVarInt(3, stop_delay_ms_);
-  }
-
-  // Field 4: max_per_24_h
-  if (_has_field_[4]) {
-    msg->AppendVarInt(4, max_per_24_h_);
-  }
-
-  // Field 5: skip_probability
-  if (_has_field_[5]) {
-    msg->AppendFixed(5, skip_probability_);
-  }
-
-  msg->AppendRawProtoBytes(unknown_fields_.data(), unknown_fields_.size());
-}
-
-
-TraceConfig_GuardrailOverrides::TraceConfig_GuardrailOverrides() = default;
-TraceConfig_GuardrailOverrides::~TraceConfig_GuardrailOverrides() = default;
-TraceConfig_GuardrailOverrides::TraceConfig_GuardrailOverrides(const TraceConfig_GuardrailOverrides&) = default;
-TraceConfig_GuardrailOverrides& TraceConfig_GuardrailOverrides::operator=(const TraceConfig_GuardrailOverrides&) = default;
-TraceConfig_GuardrailOverrides::TraceConfig_GuardrailOverrides(TraceConfig_GuardrailOverrides&&) noexcept = default;
-TraceConfig_GuardrailOverrides& TraceConfig_GuardrailOverrides::operator=(TraceConfig_GuardrailOverrides&&) = default;
-
-bool TraceConfig_GuardrailOverrides::operator==(const TraceConfig_GuardrailOverrides& other) const {
-  return unknown_fields_ == other.unknown_fields_
-   && max_upload_per_day_bytes_ == other.max_upload_per_day_bytes_;
-}
-
-bool TraceConfig_GuardrailOverrides::ParseFromArray(const void* raw, size_t size) {
-  unknown_fields_.clear();
-  bool packed_error = false;
-
-  ::protozero::ProtoDecoder dec(raw, size);
-  for (auto field = dec.ReadField(); field.valid(); field = dec.ReadField()) {
-    if (field.id() < _has_field_.size()) {
-      _has_field_.set(field.id());
-    }
-    switch (field.id()) {
-      case 1 /* max_upload_per_day_bytes */:
-        field.get(&max_upload_per_day_bytes_);
-        break;
-      default:
-        field.SerializeAndAppendTo(&unknown_fields_);
-        break;
-    }
-  }
-  return !packed_error && !dec.bytes_left();
-}
-
-std::string TraceConfig_GuardrailOverrides::SerializeAsString() const {
-  ::protozero::HeapBuffered<::protozero::Message> msg;
-  Serialize(msg.get());
-  return msg.SerializeAsString();
-}
-
-std::vector<uint8_t> TraceConfig_GuardrailOverrides::SerializeAsArray() const {
-  ::protozero::HeapBuffered<::protozero::Message> msg;
-  Serialize(msg.get());
-  return msg.SerializeAsArray();
-}
-
-void TraceConfig_GuardrailOverrides::Serialize(::protozero::Message* msg) const {
-  // Field 1: max_upload_per_day_bytes
-  if (_has_field_[1]) {
-    msg->AppendVarInt(1, max_upload_per_day_bytes_);
-  }
-
-  msg->AppendRawProtoBytes(unknown_fields_.data(), unknown_fields_.size());
-}
-
-
-TraceConfig_StatsdMetadata::TraceConfig_StatsdMetadata() = default;
-TraceConfig_StatsdMetadata::~TraceConfig_StatsdMetadata() = default;
-TraceConfig_StatsdMetadata::TraceConfig_StatsdMetadata(const TraceConfig_StatsdMetadata&) = default;
-TraceConfig_StatsdMetadata& TraceConfig_StatsdMetadata::operator=(const TraceConfig_StatsdMetadata&) = default;
-TraceConfig_StatsdMetadata::TraceConfig_StatsdMetadata(TraceConfig_StatsdMetadata&&) noexcept = default;
-TraceConfig_StatsdMetadata& TraceConfig_StatsdMetadata::operator=(TraceConfig_StatsdMetadata&&) = default;
-
-bool TraceConfig_StatsdMetadata::operator==(const TraceConfig_StatsdMetadata& other) const {
-  return unknown_fields_ == other.unknown_fields_
-   && triggering_alert_id_ == other.triggering_alert_id_
-   && triggering_config_uid_ == other.triggering_config_uid_
-   && triggering_config_id_ == other.triggering_config_id_
-   && triggering_subscription_id_ == other.triggering_subscription_id_;
-}
-
-bool TraceConfig_StatsdMetadata::ParseFromArray(const void* raw, size_t size) {
-  unknown_fields_.clear();
-  bool packed_error = false;
-
-  ::protozero::ProtoDecoder dec(raw, size);
-  for (auto field = dec.ReadField(); field.valid(); field = dec.ReadField()) {
-    if (field.id() < _has_field_.size()) {
-      _has_field_.set(field.id());
-    }
-    switch (field.id()) {
-      case 1 /* triggering_alert_id */:
-        field.get(&triggering_alert_id_);
-        break;
-      case 2 /* triggering_config_uid */:
-        field.get(&triggering_config_uid_);
-        break;
-      case 3 /* triggering_config_id */:
-        field.get(&triggering_config_id_);
-        break;
-      case 4 /* triggering_subscription_id */:
-        field.get(&triggering_subscription_id_);
-        break;
-      default:
-        field.SerializeAndAppendTo(&unknown_fields_);
-        break;
-    }
-  }
-  return !packed_error && !dec.bytes_left();
-}
-
-std::string TraceConfig_StatsdMetadata::SerializeAsString() const {
-  ::protozero::HeapBuffered<::protozero::Message> msg;
-  Serialize(msg.get());
-  return msg.SerializeAsString();
-}
-
-std::vector<uint8_t> TraceConfig_StatsdMetadata::SerializeAsArray() const {
-  ::protozero::HeapBuffered<::protozero::Message> msg;
-  Serialize(msg.get());
-  return msg.SerializeAsArray();
-}
-
-void TraceConfig_StatsdMetadata::Serialize(::protozero::Message* msg) const {
-  // Field 1: triggering_alert_id
-  if (_has_field_[1]) {
-    msg->AppendVarInt(1, triggering_alert_id_);
-  }
-
-  // Field 2: triggering_config_uid
-  if (_has_field_[2]) {
-    msg->AppendVarInt(2, triggering_config_uid_);
-  }
-
-  // Field 3: triggering_config_id
-  if (_has_field_[3]) {
-    msg->AppendVarInt(3, triggering_config_id_);
-  }
-
-  // Field 4: triggering_subscription_id
-  if (_has_field_[4]) {
-    msg->AppendVarInt(4, triggering_subscription_id_);
-  }
-
-  msg->AppendRawProtoBytes(unknown_fields_.data(), unknown_fields_.size());
-}
-
-
-TraceConfig_ProducerConfig::TraceConfig_ProducerConfig() = default;
-TraceConfig_ProducerConfig::~TraceConfig_ProducerConfig() = default;
-TraceConfig_ProducerConfig::TraceConfig_ProducerConfig(const TraceConfig_ProducerConfig&) = default;
-TraceConfig_ProducerConfig& TraceConfig_ProducerConfig::operator=(const TraceConfig_ProducerConfig&) = default;
-TraceConfig_ProducerConfig::TraceConfig_ProducerConfig(TraceConfig_ProducerConfig&&) noexcept = default;
-TraceConfig_ProducerConfig& TraceConfig_ProducerConfig::operator=(TraceConfig_ProducerConfig&&) = default;
-
-bool TraceConfig_ProducerConfig::operator==(const TraceConfig_ProducerConfig& other) const {
-  return unknown_fields_ == other.unknown_fields_
-   && producer_name_ == other.producer_name_
-   && shm_size_kb_ == other.shm_size_kb_
-   && page_size_kb_ == other.page_size_kb_;
-}
-
-bool TraceConfig_ProducerConfig::ParseFromArray(const void* raw, size_t size) {
-  unknown_fields_.clear();
-  bool packed_error = false;
-
-  ::protozero::ProtoDecoder dec(raw, size);
-  for (auto field = dec.ReadField(); field.valid(); field = dec.ReadField()) {
-    if (field.id() < _has_field_.size()) {
-      _has_field_.set(field.id());
-    }
-    switch (field.id()) {
-      case 1 /* producer_name */:
-        field.get(&producer_name_);
-        break;
-      case 2 /* shm_size_kb */:
-        field.get(&shm_size_kb_);
-        break;
-      case 3 /* page_size_kb */:
-        field.get(&page_size_kb_);
-        break;
-      default:
-        field.SerializeAndAppendTo(&unknown_fields_);
-        break;
-    }
-  }
-  return !packed_error && !dec.bytes_left();
-}
-
-std::string TraceConfig_ProducerConfig::SerializeAsString() const {
-  ::protozero::HeapBuffered<::protozero::Message> msg;
-  Serialize(msg.get());
-  return msg.SerializeAsString();
-}
-
-std::vector<uint8_t> TraceConfig_ProducerConfig::SerializeAsArray() const {
-  ::protozero::HeapBuffered<::protozero::Message> msg;
-  Serialize(msg.get());
-  return msg.SerializeAsArray();
-}
-
-void TraceConfig_ProducerConfig::Serialize(::protozero::Message* msg) const {
-  // Field 1: producer_name
-  if (_has_field_[1]) {
-    msg->AppendString(1, producer_name_);
-  }
-
-  // Field 2: shm_size_kb
-  if (_has_field_[2]) {
-    msg->AppendVarInt(2, shm_size_kb_);
-  }
-
-  // Field 3: page_size_kb
-  if (_has_field_[3]) {
-    msg->AppendVarInt(3, page_size_kb_);
-  }
-
-  msg->AppendRawProtoBytes(unknown_fields_.data(), unknown_fields_.size());
-}
-
-
-TraceConfig_BuiltinDataSource::TraceConfig_BuiltinDataSource() = default;
-TraceConfig_BuiltinDataSource::~TraceConfig_BuiltinDataSource() = default;
-TraceConfig_BuiltinDataSource::TraceConfig_BuiltinDataSource(const TraceConfig_BuiltinDataSource&) = default;
-TraceConfig_BuiltinDataSource& TraceConfig_BuiltinDataSource::operator=(const TraceConfig_BuiltinDataSource&) = default;
-TraceConfig_BuiltinDataSource::TraceConfig_BuiltinDataSource(TraceConfig_BuiltinDataSource&&) noexcept = default;
-TraceConfig_BuiltinDataSource& TraceConfig_BuiltinDataSource::operator=(TraceConfig_BuiltinDataSource&&) = default;
-
-bool TraceConfig_BuiltinDataSource::operator==(const TraceConfig_BuiltinDataSource& other) const {
-  return unknown_fields_ == other.unknown_fields_
-   && disable_clock_snapshotting_ == other.disable_clock_snapshotting_
-   && disable_trace_config_ == other.disable_trace_config_
-   && disable_system_info_ == other.disable_system_info_
-   && disable_service_events_ == other.disable_service_events_
-   && primary_trace_clock_ == other.primary_trace_clock_
-   && snapshot_interval_ms_ == other.snapshot_interval_ms_
-   && prefer_suspend_clock_for_snapshot_ == other.prefer_suspend_clock_for_snapshot_;
-}
-
-bool TraceConfig_BuiltinDataSource::ParseFromArray(const void* raw, size_t size) {
-  unknown_fields_.clear();
-  bool packed_error = false;
-
-  ::protozero::ProtoDecoder dec(raw, size);
-  for (auto field = dec.ReadField(); field.valid(); field = dec.ReadField()) {
-    if (field.id() < _has_field_.size()) {
-      _has_field_.set(field.id());
-    }
-    switch (field.id()) {
-      case 1 /* disable_clock_snapshotting */:
-        field.get(&disable_clock_snapshotting_);
-        break;
-      case 2 /* disable_trace_config */:
-        field.get(&disable_trace_config_);
-        break;
-      case 3 /* disable_system_info */:
-        field.get(&disable_system_info_);
-        break;
-      case 4 /* disable_service_events */:
-        field.get(&disable_service_events_);
-        break;
-      case 5 /* primary_trace_clock */:
-        field.get(&primary_trace_clock_);
-        break;
-      case 6 /* snapshot_interval_ms */:
-        field.get(&snapshot_interval_ms_);
-        break;
-      case 7 /* prefer_suspend_clock_for_snapshot */:
-        field.get(&prefer_suspend_clock_for_snapshot_);
-        break;
-      default:
-        field.SerializeAndAppendTo(&unknown_fields_);
-        break;
-    }
-  }
-  return !packed_error && !dec.bytes_left();
-}
-
-std::string TraceConfig_BuiltinDataSource::SerializeAsString() const {
-  ::protozero::HeapBuffered<::protozero::Message> msg;
-  Serialize(msg.get());
-  return msg.SerializeAsString();
-}
-
-std::vector<uint8_t> TraceConfig_BuiltinDataSource::SerializeAsArray() const {
-  ::protozero::HeapBuffered<::protozero::Message> msg;
-  Serialize(msg.get());
-  return msg.SerializeAsArray();
-}
-
-void TraceConfig_BuiltinDataSource::Serialize(::protozero::Message* msg) const {
-  // Field 1: disable_clock_snapshotting
-  if (_has_field_[1]) {
-    msg->AppendTinyVarInt(1, disable_clock_snapshotting_);
-  }
-
-  // Field 2: disable_trace_config
-  if (_has_field_[2]) {
-    msg->AppendTinyVarInt(2, disable_trace_config_);
-  }
-
-  // Field 3: disable_system_info
-  if (_has_field_[3]) {
-    msg->AppendTinyVarInt(3, disable_system_info_);
-  }
-
-  // Field 4: disable_service_events
-  if (_has_field_[4]) {
-    msg->AppendTinyVarInt(4, disable_service_events_);
-  }
-
-  // Field 5: primary_trace_clock
-  if (_has_field_[5]) {
-    msg->AppendVarInt(5, primary_trace_clock_);
-  }
-
-  // Field 6: snapshot_interval_ms
-  if (_has_field_[6]) {
-    msg->AppendVarInt(6, snapshot_interval_ms_);
-  }
-
-  // Field 7: prefer_suspend_clock_for_snapshot
-  if (_has_field_[7]) {
-    msg->AppendTinyVarInt(7, prefer_suspend_clock_for_snapshot_);
-  }
-
-  msg->AppendRawProtoBytes(unknown_fields_.data(), unknown_fields_.size());
-}
-
-
-TraceConfig_DataSource::TraceConfig_DataSource() = default;
-TraceConfig_DataSource::~TraceConfig_DataSource() = default;
-TraceConfig_DataSource::TraceConfig_DataSource(const TraceConfig_DataSource&) = default;
-TraceConfig_DataSource& TraceConfig_DataSource::operator=(const TraceConfig_DataSource&) = default;
-TraceConfig_DataSource::TraceConfig_DataSource(TraceConfig_DataSource&&) noexcept = default;
-TraceConfig_DataSource& TraceConfig_DataSource::operator=(TraceConfig_DataSource&&) = default;
-
-bool TraceConfig_DataSource::operator==(const TraceConfig_DataSource& other) const {
-  return unknown_fields_ == other.unknown_fields_
-   && config_ == other.config_
-   && producer_name_filter_ == other.producer_name_filter_
-   && producer_name_regex_filter_ == other.producer_name_regex_filter_;
-}
-
-bool TraceConfig_DataSource::ParseFromArray(const void* raw, size_t size) {
-  producer_name_filter_.clear();
-  producer_name_regex_filter_.clear();
-  unknown_fields_.clear();
-  bool packed_error = false;
-
-  ::protozero::ProtoDecoder dec(raw, size);
-  for (auto field = dec.ReadField(); field.valid(); field = dec.ReadField()) {
-    if (field.id() < _has_field_.size()) {
-      _has_field_.set(field.id());
-    }
-    switch (field.id()) {
-      case 1 /* config */:
-        (*config_).ParseFromArray(field.data(), field.size());
-        break;
-      case 2 /* producer_name_filter */:
-        producer_name_filter_.emplace_back();
-        field.get(&producer_name_filter_.back());
-        break;
-      case 3 /* producer_name_regex_filter */:
-        producer_name_regex_filter_.emplace_back();
-        field.get(&producer_name_regex_filter_.back());
-        break;
-      default:
-        field.SerializeAndAppendTo(&unknown_fields_);
-        break;
-    }
-  }
-  return !packed_error && !dec.bytes_left();
-}
-
-std::string TraceConfig_DataSource::SerializeAsString() const {
-  ::protozero::HeapBuffered<::protozero::Message> msg;
-  Serialize(msg.get());
-  return msg.SerializeAsString();
-}
-
-std::vector<uint8_t> TraceConfig_DataSource::SerializeAsArray() const {
-  ::protozero::HeapBuffered<::protozero::Message> msg;
-  Serialize(msg.get());
-  return msg.SerializeAsArray();
-}
-
-void TraceConfig_DataSource::Serialize(::protozero::Message* msg) const {
-  // Field 1: config
-  if (_has_field_[1]) {
-    (*config_).Serialize(msg->BeginNestedMessage<::protozero::Message>(1));
-  }
-
-  // Field 2: producer_name_filter
-  for (auto& it : producer_name_filter_) {
-    msg->AppendString(2, it);
-  }
-
-  // Field 3: producer_name_regex_filter
-  for (auto& it : producer_name_regex_filter_) {
-    msg->AppendString(3, it);
-  }
-
-  msg->AppendRawProtoBytes(unknown_fields_.data(), unknown_fields_.size());
-}
-
-
-TraceConfig_BufferConfig::TraceConfig_BufferConfig() = default;
-TraceConfig_BufferConfig::~TraceConfig_BufferConfig() = default;
-TraceConfig_BufferConfig::TraceConfig_BufferConfig(const TraceConfig_BufferConfig&) = default;
-TraceConfig_BufferConfig& TraceConfig_BufferConfig::operator=(const TraceConfig_BufferConfig&) = default;
-TraceConfig_BufferConfig::TraceConfig_BufferConfig(TraceConfig_BufferConfig&&) noexcept = default;
-TraceConfig_BufferConfig& TraceConfig_BufferConfig::operator=(TraceConfig_BufferConfig&&) = default;
-
-bool TraceConfig_BufferConfig::operator==(const TraceConfig_BufferConfig& other) const {
-  return unknown_fields_ == other.unknown_fields_
-   && size_kb_ == other.size_kb_
-   && fill_policy_ == other.fill_policy_;
-}
-
-bool TraceConfig_BufferConfig::ParseFromArray(const void* raw, size_t size) {
-  unknown_fields_.clear();
-  bool packed_error = false;
-
-  ::protozero::ProtoDecoder dec(raw, size);
-  for (auto field = dec.ReadField(); field.valid(); field = dec.ReadField()) {
-    if (field.id() < _has_field_.size()) {
-      _has_field_.set(field.id());
-    }
-    switch (field.id()) {
-      case 1 /* size_kb */:
-        field.get(&size_kb_);
-        break;
-      case 4 /* fill_policy */:
-        field.get(&fill_policy_);
-        break;
-      default:
-        field.SerializeAndAppendTo(&unknown_fields_);
-        break;
-    }
-  }
-  return !packed_error && !dec.bytes_left();
-}
-
-std::string TraceConfig_BufferConfig::SerializeAsString() const {
-  ::protozero::HeapBuffered<::protozero::Message> msg;
-  Serialize(msg.get());
-  return msg.SerializeAsString();
-}
-
-std::vector<uint8_t> TraceConfig_BufferConfig::SerializeAsArray() const {
-  ::protozero::HeapBuffered<::protozero::Message> msg;
-  Serialize(msg.get());
-  return msg.SerializeAsArray();
-}
-
-void TraceConfig_BufferConfig::Serialize(::protozero::Message* msg) const {
-  // Field 1: size_kb
-  if (_has_field_[1]) {
-    msg->AppendVarInt(1, size_kb_);
-  }
-
-  // Field 4: fill_policy
-  if (_has_field_[4]) {
-    msg->AppendVarInt(4, fill_policy_);
-  }
-
-  msg->AppendRawProtoBytes(unknown_fields_.data(), unknown_fields_.size());
-}
-
-}  // namespace perfetto
-}  // namespace protos
-}  // namespace gen
-#if defined(__GNUC__) || defined(__clang__)
-#pragma GCC diagnostic pop
-#endif
-// gen_amalgamated begin source: gen/protos/perfetto/common/android_energy_consumer_descriptor.pbzero.cc
-// Intentionally empty (crbug.com/998165)
-// gen_amalgamated begin source: gen/protos/perfetto/common/android_log_constants.pbzero.cc
-// Intentionally empty (crbug.com/998165)
-// gen_amalgamated begin source: gen/protos/perfetto/common/builtin_clock.pbzero.cc
-// Intentionally empty (crbug.com/998165)
-// gen_amalgamated begin source: gen/protos/perfetto/common/commit_data_request.pbzero.cc
-// Intentionally empty (crbug.com/998165)
-// gen_amalgamated begin source: gen/protos/perfetto/common/data_source_descriptor.pbzero.cc
-// Intentionally empty (crbug.com/998165)
-// gen_amalgamated begin source: gen/protos/perfetto/common/descriptor.pbzero.cc
-// Intentionally empty (crbug.com/998165)
-// gen_amalgamated begin source: gen/protos/perfetto/common/gpu_counter_descriptor.pbzero.cc
-// Intentionally empty (crbug.com/998165)
-// gen_amalgamated begin source: gen/protos/perfetto/common/interceptor_descriptor.pbzero.cc
-// Intentionally empty (crbug.com/998165)
-// gen_amalgamated begin source: gen/protos/perfetto/common/observable_events.pbzero.cc
-// Intentionally empty (crbug.com/998165)
-// gen_amalgamated begin source: gen/protos/perfetto/common/perf_events.pbzero.cc
-// Intentionally empty (crbug.com/998165)
-// gen_amalgamated begin source: gen/protos/perfetto/common/sys_stats_counters.pbzero.cc
-// Intentionally empty (crbug.com/998165)
-// gen_amalgamated begin source: gen/protos/perfetto/common/trace_stats.pbzero.cc
-// Intentionally empty (crbug.com/998165)
-// gen_amalgamated begin source: gen/protos/perfetto/common/tracing_service_capabilities.pbzero.cc
-// Intentionally empty (crbug.com/998165)
-// gen_amalgamated begin source: gen/protos/perfetto/common/tracing_service_state.pbzero.cc
-// Intentionally empty (crbug.com/998165)
-// gen_amalgamated begin source: gen/protos/perfetto/common/track_event_descriptor.pbzero.cc
-// Intentionally empty (crbug.com/998165)
-// gen_amalgamated begin source: gen/protos/perfetto/trace/gpu/gpu_counter_event.pbzero.cc
-// Intentionally empty (crbug.com/998165)
-// gen_amalgamated begin source: gen/protos/perfetto/trace/gpu/gpu_log.pbzero.cc
-// Intentionally empty (crbug.com/998165)
-// gen_amalgamated begin source: gen/protos/perfetto/trace/gpu/gpu_render_stage_event.pbzero.cc
-// Intentionally empty (crbug.com/998165)
-// gen_amalgamated begin source: gen/protos/perfetto/trace/gpu/vulkan_api_event.pbzero.cc
-// Intentionally empty (crbug.com/998165)
-// gen_amalgamated begin source: gen/protos/perfetto/trace/gpu/vulkan_memory_event.pbzero.cc
-// Intentionally empty (crbug.com/998165)
-// gen_amalgamated begin source: gen/protos/perfetto/trace/profiling/deobfuscation.pbzero.cc
-// Intentionally empty (crbug.com/998165)
-// gen_amalgamated begin source: gen/protos/perfetto/trace/profiling/heap_graph.pbzero.cc
-// Intentionally empty (crbug.com/998165)
-// gen_amalgamated begin source: gen/protos/perfetto/trace/profiling/profile_common.pbzero.cc
-// Intentionally empty (crbug.com/998165)
-// gen_amalgamated begin source: gen/protos/perfetto/trace/profiling/profile_packet.pbzero.cc
-// Intentionally empty (crbug.com/998165)
-// gen_amalgamated begin source: gen/protos/perfetto/trace/profiling/smaps.pbzero.cc
-// Intentionally empty (crbug.com/998165)
-// gen_amalgamated begin source: gen/protos/perfetto/trace/track_event/chrome_application_state_info.pbzero.cc
-// Intentionally empty (crbug.com/998165)
-// gen_amalgamated begin source: gen/protos/perfetto/trace/track_event/chrome_compositor_scheduler_state.pbzero.cc
-// Intentionally empty (crbug.com/998165)
-// gen_amalgamated begin source: gen/protos/perfetto/trace/track_event/chrome_content_settings_event_info.pbzero.cc
-// Intentionally empty (crbug.com/998165)
-// gen_amalgamated begin source: gen/protos/perfetto/trace/track_event/chrome_frame_reporter.pbzero.cc
-// Intentionally empty (crbug.com/998165)
-// gen_amalgamated begin source: gen/protos/perfetto/trace/track_event/chrome_histogram_sample.pbzero.cc
-// Intentionally empty (crbug.com/998165)
-// gen_amalgamated begin source: gen/protos/perfetto/trace/track_event/chrome_keyed_service.pbzero.cc
-// Intentionally empty (crbug.com/998165)
-// gen_amalgamated begin source: gen/protos/perfetto/trace/track_event/chrome_latency_info.pbzero.cc
-// Intentionally empty (crbug.com/998165)
-// gen_amalgamated begin source: gen/protos/perfetto/trace/track_event/chrome_legacy_ipc.pbzero.cc
-// Intentionally empty (crbug.com/998165)
-// gen_amalgamated begin source: gen/protos/perfetto/trace/track_event/chrome_message_pump.pbzero.cc
-// Intentionally empty (crbug.com/998165)
-// gen_amalgamated begin source: gen/protos/perfetto/trace/track_event/chrome_mojo_event_info.pbzero.cc
-// Intentionally empty (crbug.com/998165)
-// gen_amalgamated begin source: gen/protos/perfetto/trace/track_event/chrome_process_descriptor.pbzero.cc
-// Intentionally empty (crbug.com/998165)
-// gen_amalgamated begin source: gen/protos/perfetto/trace/track_event/chrome_renderer_scheduler_state.pbzero.cc
-// Intentionally empty (crbug.com/998165)
-// gen_amalgamated begin source: gen/protos/perfetto/trace/track_event/chrome_thread_descriptor.pbzero.cc
-// Intentionally empty (crbug.com/998165)
-// gen_amalgamated begin source: gen/protos/perfetto/trace/track_event/chrome_user_event.pbzero.cc
-// Intentionally empty (crbug.com/998165)
-// gen_amalgamated begin source: gen/protos/perfetto/trace/track_event/chrome_window_handle_event_info.pbzero.cc
-// Intentionally empty (crbug.com/998165)
-// gen_amalgamated begin source: gen/protos/perfetto/trace/track_event/counter_descriptor.pbzero.cc
-// Intentionally empty (crbug.com/998165)
-// gen_amalgamated begin source: gen/protos/perfetto/trace/track_event/debug_annotation.pbzero.cc
-// Intentionally empty (crbug.com/998165)
-// gen_amalgamated begin source: gen/protos/perfetto/trace/track_event/log_message.pbzero.cc
-// Intentionally empty (crbug.com/998165)
-// gen_amalgamated begin source: gen/protos/perfetto/trace/track_event/process_descriptor.pbzero.cc
-// Intentionally empty (crbug.com/998165)
-// gen_amalgamated begin source: gen/protos/perfetto/trace/track_event/source_location.pbzero.cc
-// Intentionally empty (crbug.com/998165)
-// gen_amalgamated begin source: gen/protos/perfetto/trace/track_event/task_execution.pbzero.cc
-// Intentionally empty (crbug.com/998165)
-// gen_amalgamated begin source: gen/protos/perfetto/trace/track_event/thread_descriptor.pbzero.cc
-// Intentionally empty (crbug.com/998165)
-// gen_amalgamated begin source: gen/protos/perfetto/trace/track_event/track_descriptor.pbzero.cc
-// Intentionally empty (crbug.com/998165)
-// gen_amalgamated begin source: gen/protos/perfetto/trace/track_event/track_event.pbzero.cc
-// Intentionally empty (crbug.com/998165)
-// gen_amalgamated begin source: gen/protos/perfetto/trace/interned_data/interned_data.pbzero.cc
-// Intentionally empty (crbug.com/998165)
-// gen_amalgamated begin source: gen/protos/perfetto/trace/track_event/chrome_application_state_info.gen.cc
-// gen_amalgamated begin header: gen/protos/perfetto/trace/track_event/chrome_application_state_info.gen.h
-// DO NOT EDIT. Autogenerated by Perfetto cppgen_plugin
-#ifndef PERFETTO_PROTOS_PROTOS_PERFETTO_TRACE_TRACK_EVENT_CHROME_APPLICATION_STATE_INFO_PROTO_CPP_H_
-#define PERFETTO_PROTOS_PROTOS_PERFETTO_TRACE_TRACK_EVENT_CHROME_APPLICATION_STATE_INFO_PROTO_CPP_H_
-
-#include <stdint.h>
-#include <bitset>
-#include <vector>
-#include <string>
-#include <type_traits>
-
-// gen_amalgamated expanded: #include "perfetto/protozero/cpp_message_obj.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/copyable_ptr.h"
-// gen_amalgamated expanded: #include "perfetto/base/export.h"
-
-namespace perfetto {
-namespace protos {
-namespace gen {
-class ChromeApplicationStateInfo;
-enum ChromeApplicationStateInfo_ChromeApplicationState : int;
-}  // namespace perfetto
-}  // namespace protos
-}  // namespace gen
-
-namespace protozero {
-class Message;
-}  // namespace protozero
-
-namespace perfetto {
-namespace protos {
-namespace gen {
-enum ChromeApplicationStateInfo_ChromeApplicationState : int {
-  ChromeApplicationStateInfo_ChromeApplicationState_APPLICATION_STATE_UNKNOWN = 0,
-  ChromeApplicationStateInfo_ChromeApplicationState_APPLICATION_STATE_HAS_RUNNING_ACTIVITIES = 1,
-  ChromeApplicationStateInfo_ChromeApplicationState_APPLICATION_STATE_HAS_PAUSED_ACTIVITIES = 2,
-  ChromeApplicationStateInfo_ChromeApplicationState_APPLICATION_STATE_HAS_STOPPED_ACTIVITIES = 3,
-  ChromeApplicationStateInfo_ChromeApplicationState_APPLICATION_STATE_HAS_DESTROYED_ACTIVITIES = 4,
-};
-
-class PERFETTO_EXPORT ChromeApplicationStateInfo : public ::protozero::CppMessageObj {
- public:
-  using ChromeApplicationState = ChromeApplicationStateInfo_ChromeApplicationState;
-  static constexpr auto APPLICATION_STATE_UNKNOWN = ChromeApplicationStateInfo_ChromeApplicationState_APPLICATION_STATE_UNKNOWN;
-  static constexpr auto APPLICATION_STATE_HAS_RUNNING_ACTIVITIES = ChromeApplicationStateInfo_ChromeApplicationState_APPLICATION_STATE_HAS_RUNNING_ACTIVITIES;
-  static constexpr auto APPLICATION_STATE_HAS_PAUSED_ACTIVITIES = ChromeApplicationStateInfo_ChromeApplicationState_APPLICATION_STATE_HAS_PAUSED_ACTIVITIES;
-  static constexpr auto APPLICATION_STATE_HAS_STOPPED_ACTIVITIES = ChromeApplicationStateInfo_ChromeApplicationState_APPLICATION_STATE_HAS_STOPPED_ACTIVITIES;
-  static constexpr auto APPLICATION_STATE_HAS_DESTROYED_ACTIVITIES = ChromeApplicationStateInfo_ChromeApplicationState_APPLICATION_STATE_HAS_DESTROYED_ACTIVITIES;
-  static constexpr auto ChromeApplicationState_MIN = ChromeApplicationStateInfo_ChromeApplicationState_APPLICATION_STATE_UNKNOWN;
-  static constexpr auto ChromeApplicationState_MAX = ChromeApplicationStateInfo_ChromeApplicationState_APPLICATION_STATE_HAS_DESTROYED_ACTIVITIES;
-  enum FieldNumbers {
-    kApplicationStateFieldNumber = 1,
-  };
-
-  ChromeApplicationStateInfo();
-  ~ChromeApplicationStateInfo() override;
-  ChromeApplicationStateInfo(ChromeApplicationStateInfo&&) noexcept;
-  ChromeApplicationStateInfo& operator=(ChromeApplicationStateInfo&&);
-  ChromeApplicationStateInfo(const ChromeApplicationStateInfo&);
-  ChromeApplicationStateInfo& operator=(const ChromeApplicationStateInfo&);
-  bool operator==(const ChromeApplicationStateInfo&) const;
-  bool operator!=(const ChromeApplicationStateInfo& other) const { return !(*this == other); }
-
-  bool ParseFromArray(const void*, size_t) override;
-  std::string SerializeAsString() const override;
-  std::vector<uint8_t> SerializeAsArray() const override;
-  void Serialize(::protozero::Message*) const;
-
-  bool has_application_state() const { return _has_field_[1]; }
-  ChromeApplicationStateInfo_ChromeApplicationState application_state() const { return application_state_; }
-  void set_application_state(ChromeApplicationStateInfo_ChromeApplicationState value) { application_state_ = value; _has_field_.set(1); }
-
- private:
-  ChromeApplicationStateInfo_ChromeApplicationState application_state_{};
-
-  // Allows to preserve unknown protobuf fields for compatibility
-  // with future versions of .proto files.
-  std::string unknown_fields_;
-
-  std::bitset<2> _has_field_{};
-};
-
-}  // namespace perfetto
-}  // namespace protos
-}  // namespace gen
-
-#endif  // PERFETTO_PROTOS_PROTOS_PERFETTO_TRACE_TRACK_EVENT_CHROME_APPLICATION_STATE_INFO_PROTO_CPP_H_
-// gen_amalgamated expanded: #include "perfetto/protozero/message.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/packed_repeated_fields.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/proto_decoder.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/scattered_heap_buffer.h"
-// DO NOT EDIT. Autogenerated by Perfetto cppgen_plugin
-#if defined(__GNUC__) || defined(__clang__)
-#pragma GCC diagnostic push
-#pragma GCC diagnostic ignored "-Wfloat-equal"
-#endif
-// gen_amalgamated expanded: #include "protos/perfetto/trace/track_event/chrome_application_state_info.gen.h"
-
-namespace perfetto {
-namespace protos {
-namespace gen {
-
-ChromeApplicationStateInfo::ChromeApplicationStateInfo() = default;
-ChromeApplicationStateInfo::~ChromeApplicationStateInfo() = default;
-ChromeApplicationStateInfo::ChromeApplicationStateInfo(const ChromeApplicationStateInfo&) = default;
-ChromeApplicationStateInfo& ChromeApplicationStateInfo::operator=(const ChromeApplicationStateInfo&) = default;
-ChromeApplicationStateInfo::ChromeApplicationStateInfo(ChromeApplicationStateInfo&&) noexcept = default;
-ChromeApplicationStateInfo& ChromeApplicationStateInfo::operator=(ChromeApplicationStateInfo&&) = default;
-
-bool ChromeApplicationStateInfo::operator==(const ChromeApplicationStateInfo& other) const {
-  return unknown_fields_ == other.unknown_fields_
-   && application_state_ == other.application_state_;
-}
-
-bool ChromeApplicationStateInfo::ParseFromArray(const void* raw, size_t size) {
-  unknown_fields_.clear();
-  bool packed_error = false;
-
-  ::protozero::ProtoDecoder dec(raw, size);
-  for (auto field = dec.ReadField(); field.valid(); field = dec.ReadField()) {
-    if (field.id() < _has_field_.size()) {
-      _has_field_.set(field.id());
-    }
-    switch (field.id()) {
-      case 1 /* application_state */:
-        field.get(&application_state_);
-        break;
-      default:
-        field.SerializeAndAppendTo(&unknown_fields_);
-        break;
-    }
-  }
-  return !packed_error && !dec.bytes_left();
-}
-
-std::string ChromeApplicationStateInfo::SerializeAsString() const {
-  ::protozero::HeapBuffered<::protozero::Message> msg;
-  Serialize(msg.get());
-  return msg.SerializeAsString();
-}
-
-std::vector<uint8_t> ChromeApplicationStateInfo::SerializeAsArray() const {
-  ::protozero::HeapBuffered<::protozero::Message> msg;
-  Serialize(msg.get());
-  return msg.SerializeAsArray();
-}
-
-void ChromeApplicationStateInfo::Serialize(::protozero::Message* msg) const {
-  // Field 1: application_state
-  if (_has_field_[1]) {
-    msg->AppendVarInt(1, application_state_);
-  }
-
-  msg->AppendRawProtoBytes(unknown_fields_.data(), unknown_fields_.size());
-}
-
-}  // namespace perfetto
-}  // namespace protos
-}  // namespace gen
-#if defined(__GNUC__) || defined(__clang__)
-#pragma GCC diagnostic pop
-#endif
-// gen_amalgamated begin source: gen/protos/perfetto/trace/track_event/chrome_compositor_scheduler_state.gen.cc
-// gen_amalgamated begin header: gen/protos/perfetto/trace/track_event/chrome_compositor_scheduler_state.gen.h
-// DO NOT EDIT. Autogenerated by Perfetto cppgen_plugin
-#ifndef PERFETTO_PROTOS_PROTOS_PERFETTO_TRACE_TRACK_EVENT_CHROME_COMPOSITOR_SCHEDULER_STATE_PROTO_CPP_H_
-#define PERFETTO_PROTOS_PROTOS_PERFETTO_TRACE_TRACK_EVENT_CHROME_COMPOSITOR_SCHEDULER_STATE_PROTO_CPP_H_
-
-#include <stdint.h>
-#include <bitset>
-#include <vector>
-#include <string>
-#include <type_traits>
-
-// gen_amalgamated expanded: #include "perfetto/protozero/cpp_message_obj.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/copyable_ptr.h"
-// gen_amalgamated expanded: #include "perfetto/base/export.h"
-
-namespace perfetto {
-namespace protos {
-namespace gen {
-class CompositorTimingHistory;
-class BeginFrameSourceState;
-class BeginFrameArgs;
-class SourceLocation;
-class BeginFrameObserverState;
-class BeginImplFrameArgs;
-class BeginImplFrameArgs_TimestampsInUs;
-class ChromeCompositorStateMachine;
-class ChromeCompositorStateMachine_MinorState;
-class ChromeCompositorStateMachine_MajorState;
-class ChromeCompositorSchedulerState;
-enum ChromeCompositorSchedulerAction : int;
-enum BeginFrameArgs_BeginFrameArgsType : int;
-enum BeginImplFrameArgs_State : int;
-enum ChromeCompositorStateMachine_MinorState_TreePriority : int;
-enum ChromeCompositorStateMachine_MinorState_ScrollHandlerState : int;
-enum ChromeCompositorStateMachine_MajorState_BeginImplFrameState : int;
-enum ChromeCompositorStateMachine_MajorState_BeginMainFrameState : int;
-enum ChromeCompositorStateMachine_MajorState_LayerTreeFrameSinkState : int;
-enum ChromeCompositorStateMachine_MajorState_ForcedRedrawOnTimeoutState : int;
-enum ChromeCompositorSchedulerState_BeginImplFrameDeadlineMode : int;
-}  // namespace perfetto
-}  // namespace protos
-}  // namespace gen
-
-namespace protozero {
-class Message;
-}  // namespace protozero
-
-namespace perfetto {
-namespace protos {
-namespace gen {
-enum ChromeCompositorSchedulerAction : int {
-  CC_SCHEDULER_ACTION_UNSPECIFIED = 0,
-  CC_SCHEDULER_ACTION_NONE = 1,
-  CC_SCHEDULER_ACTION_SEND_BEGIN_MAIN_FRAME = 2,
-  CC_SCHEDULER_ACTION_COMMIT = 3,
-  CC_SCHEDULER_ACTION_ACTIVATE_SYNC_TREE = 4,
-  CC_SCHEDULER_ACTION_DRAW_IF_POSSIBLE = 5,
-  CC_SCHEDULER_ACTION_DRAW_FORCED = 6,
-  CC_SCHEDULER_ACTION_DRAW_ABORT = 7,
-  CC_SCHEDULER_ACTION_BEGIN_LAYER_TREE_FRAME_SINK_CREATION = 8,
-  CC_SCHEDULER_ACTION_PREPARE_TILES = 9,
-  CC_SCHEDULER_ACTION_INVALIDATE_LAYER_TREE_FRAME_SINK = 10,
-  CC_SCHEDULER_ACTION_PERFORM_IMPL_SIDE_INVALIDATION = 11,
-  CC_SCHEDULER_ACTION_NOTIFY_BEGIN_MAIN_FRAME_NOT_EXPECTED_UNTIL = 12,
-  CC_SCHEDULER_ACTION_NOTIFY_BEGIN_MAIN_FRAME_NOT_EXPECTED_SOON = 13,
-};
-enum BeginFrameArgs_BeginFrameArgsType : int {
-  BeginFrameArgs_BeginFrameArgsType_BEGIN_FRAME_ARGS_TYPE_UNSPECIFIED = 0,
-  BeginFrameArgs_BeginFrameArgsType_BEGIN_FRAME_ARGS_TYPE_INVALID = 1,
-  BeginFrameArgs_BeginFrameArgsType_BEGIN_FRAME_ARGS_TYPE_NORMAL = 2,
-  BeginFrameArgs_BeginFrameArgsType_BEGIN_FRAME_ARGS_TYPE_MISSED = 3,
-};
-enum BeginImplFrameArgs_State : int {
-  BeginImplFrameArgs_State_BEGIN_FRAME_FINISHED = 0,
-  BeginImplFrameArgs_State_BEGIN_FRAME_USING = 1,
-};
-enum ChromeCompositorStateMachine_MinorState_TreePriority : int {
-  ChromeCompositorStateMachine_MinorState_TreePriority_TREE_PRIORITY_UNSPECIFIED = 0,
-  ChromeCompositorStateMachine_MinorState_TreePriority_TREE_PRIORITY_SAME_PRIORITY_FOR_BOTH_TREES = 1,
-  ChromeCompositorStateMachine_MinorState_TreePriority_TREE_PRIORITY_SMOOTHNESS_TAKES_PRIORITY = 2,
-  ChromeCompositorStateMachine_MinorState_TreePriority_TREE_PRIORITY_NEW_CONTENT_TAKES_PRIORITY = 3,
-};
-enum ChromeCompositorStateMachine_MinorState_ScrollHandlerState : int {
-  ChromeCompositorStateMachine_MinorState_ScrollHandlerState_SCROLL_HANDLER_UNSPECIFIED = 0,
-  ChromeCompositorStateMachine_MinorState_ScrollHandlerState_SCROLL_AFFECTS_SCROLL_HANDLER = 1,
-  ChromeCompositorStateMachine_MinorState_ScrollHandlerState_SCROLL_DOES_NOT_AFFECT_SCROLL_HANDLER = 2,
-};
-enum ChromeCompositorStateMachine_MajorState_BeginImplFrameState : int {
-  ChromeCompositorStateMachine_MajorState_BeginImplFrameState_BEGIN_IMPL_FRAME_UNSPECIFIED = 0,
-  ChromeCompositorStateMachine_MajorState_BeginImplFrameState_BEGIN_IMPL_FRAME_IDLE = 1,
-  ChromeCompositorStateMachine_MajorState_BeginImplFrameState_BEGIN_IMPL_FRAME_INSIDE_BEGIN_FRAME = 2,
-  ChromeCompositorStateMachine_MajorState_BeginImplFrameState_BEGIN_IMPL_FRAME_INSIDE_DEADLINE = 3,
-};
-enum ChromeCompositorStateMachine_MajorState_BeginMainFrameState : int {
-  ChromeCompositorStateMachine_MajorState_BeginMainFrameState_BEGIN_MAIN_FRAME_UNSPECIFIED = 0,
-  ChromeCompositorStateMachine_MajorState_BeginMainFrameState_BEGIN_MAIN_FRAME_IDLE = 1,
-  ChromeCompositorStateMachine_MajorState_BeginMainFrameState_BEGIN_MAIN_FRAME_SENT = 2,
-  ChromeCompositorStateMachine_MajorState_BeginMainFrameState_BEGIN_MAIN_FRAME_READY_TO_COMMIT = 3,
-};
-enum ChromeCompositorStateMachine_MajorState_LayerTreeFrameSinkState : int {
-  ChromeCompositorStateMachine_MajorState_LayerTreeFrameSinkState_LAYER_TREE_FRAME_UNSPECIFIED = 0,
-  ChromeCompositorStateMachine_MajorState_LayerTreeFrameSinkState_LAYER_TREE_FRAME_NONE = 1,
-  ChromeCompositorStateMachine_MajorState_LayerTreeFrameSinkState_LAYER_TREE_FRAME_ACTIVE = 2,
-  ChromeCompositorStateMachine_MajorState_LayerTreeFrameSinkState_LAYER_TREE_FRAME_CREATING = 3,
-  ChromeCompositorStateMachine_MajorState_LayerTreeFrameSinkState_LAYER_TREE_FRAME_WAITING_FOR_FIRST_COMMIT = 4,
-  ChromeCompositorStateMachine_MajorState_LayerTreeFrameSinkState_LAYER_TREE_FRAME_WAITING_FOR_FIRST_ACTIVATION = 5,
-};
-enum ChromeCompositorStateMachine_MajorState_ForcedRedrawOnTimeoutState : int {
-  ChromeCompositorStateMachine_MajorState_ForcedRedrawOnTimeoutState_FORCED_REDRAW_UNSPECIFIED = 0,
-  ChromeCompositorStateMachine_MajorState_ForcedRedrawOnTimeoutState_FORCED_REDRAW_IDLE = 1,
-  ChromeCompositorStateMachine_MajorState_ForcedRedrawOnTimeoutState_FORCED_REDRAW_WAITING_FOR_COMMIT = 2,
-  ChromeCompositorStateMachine_MajorState_ForcedRedrawOnTimeoutState_FORCED_REDRAW_WAITING_FOR_ACTIVATION = 3,
-  ChromeCompositorStateMachine_MajorState_ForcedRedrawOnTimeoutState_FORCED_REDRAW_WAITING_FOR_DRAW = 4,
-};
-enum ChromeCompositorSchedulerState_BeginImplFrameDeadlineMode : int {
-  ChromeCompositorSchedulerState_BeginImplFrameDeadlineMode_DEADLINE_MODE_UNSPECIFIED = 0,
-  ChromeCompositorSchedulerState_BeginImplFrameDeadlineMode_DEADLINE_MODE_NONE = 1,
-  ChromeCompositorSchedulerState_BeginImplFrameDeadlineMode_DEADLINE_MODE_IMMEDIATE = 2,
-  ChromeCompositorSchedulerState_BeginImplFrameDeadlineMode_DEADLINE_MODE_REGULAR = 3,
-  ChromeCompositorSchedulerState_BeginImplFrameDeadlineMode_DEADLINE_MODE_LATE = 4,
-  ChromeCompositorSchedulerState_BeginImplFrameDeadlineMode_DEADLINE_MODE_BLOCKED = 5,
-};
-
-class PERFETTO_EXPORT CompositorTimingHistory : public ::protozero::CppMessageObj {
- public:
-  enum FieldNumbers {
-    kBeginMainFrameQueueCriticalEstimateDeltaUsFieldNumber = 1,
-    kBeginMainFrameQueueNotCriticalEstimateDeltaUsFieldNumber = 2,
-    kBeginMainFrameStartToReadyToCommitEstimateDeltaUsFieldNumber = 3,
-    kCommitToReadyToActivateEstimateDeltaUsFieldNumber = 4,
-    kPrepareTilesEstimateDeltaUsFieldNumber = 5,
-    kActivateEstimateDeltaUsFieldNumber = 6,
-    kDrawEstimateDeltaUsFieldNumber = 7,
-  };
-
-  CompositorTimingHistory();
-  ~CompositorTimingHistory() override;
-  CompositorTimingHistory(CompositorTimingHistory&&) noexcept;
-  CompositorTimingHistory& operator=(CompositorTimingHistory&&);
-  CompositorTimingHistory(const CompositorTimingHistory&);
-  CompositorTimingHistory& operator=(const CompositorTimingHistory&);
-  bool operator==(const CompositorTimingHistory&) const;
-  bool operator!=(const CompositorTimingHistory& other) const { return !(*this == other); }
-
-  bool ParseFromArray(const void*, size_t) override;
-  std::string SerializeAsString() const override;
-  std::vector<uint8_t> SerializeAsArray() const override;
-  void Serialize(::protozero::Message*) const;
-
-  bool has_begin_main_frame_queue_critical_estimate_delta_us() const { return _has_field_[1]; }
-  int64_t begin_main_frame_queue_critical_estimate_delta_us() const { return begin_main_frame_queue_critical_estimate_delta_us_; }
-  void set_begin_main_frame_queue_critical_estimate_delta_us(int64_t value) { begin_main_frame_queue_critical_estimate_delta_us_ = value; _has_field_.set(1); }
-
-  bool has_begin_main_frame_queue_not_critical_estimate_delta_us() const { return _has_field_[2]; }
-  int64_t begin_main_frame_queue_not_critical_estimate_delta_us() const { return begin_main_frame_queue_not_critical_estimate_delta_us_; }
-  void set_begin_main_frame_queue_not_critical_estimate_delta_us(int64_t value) { begin_main_frame_queue_not_critical_estimate_delta_us_ = value; _has_field_.set(2); }
-
-  bool has_begin_main_frame_start_to_ready_to_commit_estimate_delta_us() const { return _has_field_[3]; }
-  int64_t begin_main_frame_start_to_ready_to_commit_estimate_delta_us() const { return begin_main_frame_start_to_ready_to_commit_estimate_delta_us_; }
-  void set_begin_main_frame_start_to_ready_to_commit_estimate_delta_us(int64_t value) { begin_main_frame_start_to_ready_to_commit_estimate_delta_us_ = value; _has_field_.set(3); }
-
-  bool has_commit_to_ready_to_activate_estimate_delta_us() const { return _has_field_[4]; }
-  int64_t commit_to_ready_to_activate_estimate_delta_us() const { return commit_to_ready_to_activate_estimate_delta_us_; }
-  void set_commit_to_ready_to_activate_estimate_delta_us(int64_t value) { commit_to_ready_to_activate_estimate_delta_us_ = value; _has_field_.set(4); }
-
-  bool has_prepare_tiles_estimate_delta_us() const { return _has_field_[5]; }
-  int64_t prepare_tiles_estimate_delta_us() const { return prepare_tiles_estimate_delta_us_; }
-  void set_prepare_tiles_estimate_delta_us(int64_t value) { prepare_tiles_estimate_delta_us_ = value; _has_field_.set(5); }
-
-  bool has_activate_estimate_delta_us() const { return _has_field_[6]; }
-  int64_t activate_estimate_delta_us() const { return activate_estimate_delta_us_; }
-  void set_activate_estimate_delta_us(int64_t value) { activate_estimate_delta_us_ = value; _has_field_.set(6); }
-
-  bool has_draw_estimate_delta_us() const { return _has_field_[7]; }
-  int64_t draw_estimate_delta_us() const { return draw_estimate_delta_us_; }
-  void set_draw_estimate_delta_us(int64_t value) { draw_estimate_delta_us_ = value; _has_field_.set(7); }
-
- private:
-  int64_t begin_main_frame_queue_critical_estimate_delta_us_{};
-  int64_t begin_main_frame_queue_not_critical_estimate_delta_us_{};
-  int64_t begin_main_frame_start_to_ready_to_commit_estimate_delta_us_{};
-  int64_t commit_to_ready_to_activate_estimate_delta_us_{};
-  int64_t prepare_tiles_estimate_delta_us_{};
-  int64_t activate_estimate_delta_us_{};
-  int64_t draw_estimate_delta_us_{};
-
-  // Allows to preserve unknown protobuf fields for compatibility
-  // with future versions of .proto files.
-  std::string unknown_fields_;
-
-  std::bitset<8> _has_field_{};
-};
-
-
-class PERFETTO_EXPORT BeginFrameSourceState : public ::protozero::CppMessageObj {
- public:
-  enum FieldNumbers {
-    kSourceIdFieldNumber = 1,
-    kPausedFieldNumber = 2,
-    kNumObserversFieldNumber = 3,
-    kLastBeginFrameArgsFieldNumber = 4,
-  };
-
-  BeginFrameSourceState();
-  ~BeginFrameSourceState() override;
-  BeginFrameSourceState(BeginFrameSourceState&&) noexcept;
-  BeginFrameSourceState& operator=(BeginFrameSourceState&&);
-  BeginFrameSourceState(const BeginFrameSourceState&);
-  BeginFrameSourceState& operator=(const BeginFrameSourceState&);
-  bool operator==(const BeginFrameSourceState&) const;
-  bool operator!=(const BeginFrameSourceState& other) const { return !(*this == other); }
-
-  bool ParseFromArray(const void*, size_t) override;
-  std::string SerializeAsString() const override;
-  std::vector<uint8_t> SerializeAsArray() const override;
-  void Serialize(::protozero::Message*) const;
-
-  bool has_source_id() const { return _has_field_[1]; }
-  uint32_t source_id() const { return source_id_; }
-  void set_source_id(uint32_t value) { source_id_ = value; _has_field_.set(1); }
-
-  bool has_paused() const { return _has_field_[2]; }
-  bool paused() const { return paused_; }
-  void set_paused(bool value) { paused_ = value; _has_field_.set(2); }
-
-  bool has_num_observers() const { return _has_field_[3]; }
-  uint32_t num_observers() const { return num_observers_; }
-  void set_num_observers(uint32_t value) { num_observers_ = value; _has_field_.set(3); }
-
-  bool has_last_begin_frame_args() const { return _has_field_[4]; }
-  const BeginFrameArgs& last_begin_frame_args() const { return *last_begin_frame_args_; }
-  BeginFrameArgs* mutable_last_begin_frame_args() { _has_field_.set(4); return last_begin_frame_args_.get(); }
-
- private:
-  uint32_t source_id_{};
-  bool paused_{};
-  uint32_t num_observers_{};
-  ::protozero::CopyablePtr<BeginFrameArgs> last_begin_frame_args_;
-
-  // Allows to preserve unknown protobuf fields for compatibility
-  // with future versions of .proto files.
-  std::string unknown_fields_;
-
-  std::bitset<5> _has_field_{};
-};
-
-
-class PERFETTO_EXPORT BeginFrameArgs : public ::protozero::CppMessageObj {
- public:
-  using BeginFrameArgsType = BeginFrameArgs_BeginFrameArgsType;
-  static constexpr auto BEGIN_FRAME_ARGS_TYPE_UNSPECIFIED = BeginFrameArgs_BeginFrameArgsType_BEGIN_FRAME_ARGS_TYPE_UNSPECIFIED;
-  static constexpr auto BEGIN_FRAME_ARGS_TYPE_INVALID = BeginFrameArgs_BeginFrameArgsType_BEGIN_FRAME_ARGS_TYPE_INVALID;
-  static constexpr auto BEGIN_FRAME_ARGS_TYPE_NORMAL = BeginFrameArgs_BeginFrameArgsType_BEGIN_FRAME_ARGS_TYPE_NORMAL;
-  static constexpr auto BEGIN_FRAME_ARGS_TYPE_MISSED = BeginFrameArgs_BeginFrameArgsType_BEGIN_FRAME_ARGS_TYPE_MISSED;
-  static constexpr auto BeginFrameArgsType_MIN = BeginFrameArgs_BeginFrameArgsType_BEGIN_FRAME_ARGS_TYPE_UNSPECIFIED;
-  static constexpr auto BeginFrameArgsType_MAX = BeginFrameArgs_BeginFrameArgsType_BEGIN_FRAME_ARGS_TYPE_MISSED;
-  enum FieldNumbers {
-    kTypeFieldNumber = 1,
-    kSourceIdFieldNumber = 2,
-    kSequenceNumberFieldNumber = 3,
-    kFrameTimeUsFieldNumber = 4,
-    kDeadlineUsFieldNumber = 5,
-    kIntervalDeltaUsFieldNumber = 6,
-    kOnCriticalPathFieldNumber = 7,
-    kAnimateOnlyFieldNumber = 8,
-    kSourceLocationIidFieldNumber = 9,
-    kSourceLocationFieldNumber = 10,
-  };
-
-  BeginFrameArgs();
-  ~BeginFrameArgs() override;
-  BeginFrameArgs(BeginFrameArgs&&) noexcept;
-  BeginFrameArgs& operator=(BeginFrameArgs&&);
-  BeginFrameArgs(const BeginFrameArgs&);
-  BeginFrameArgs& operator=(const BeginFrameArgs&);
-  bool operator==(const BeginFrameArgs&) const;
-  bool operator!=(const BeginFrameArgs& other) const { return !(*this == other); }
-
-  bool ParseFromArray(const void*, size_t) override;
-  std::string SerializeAsString() const override;
-  std::vector<uint8_t> SerializeAsArray() const override;
-  void Serialize(::protozero::Message*) const;
-
-  bool has_type() const { return _has_field_[1]; }
-  BeginFrameArgs_BeginFrameArgsType type() const { return type_; }
-  void set_type(BeginFrameArgs_BeginFrameArgsType value) { type_ = value; _has_field_.set(1); }
-
-  bool has_source_id() const { return _has_field_[2]; }
-  uint64_t source_id() const { return source_id_; }
-  void set_source_id(uint64_t value) { source_id_ = value; _has_field_.set(2); }
-
-  bool has_sequence_number() const { return _has_field_[3]; }
-  uint64_t sequence_number() const { return sequence_number_; }
-  void set_sequence_number(uint64_t value) { sequence_number_ = value; _has_field_.set(3); }
-
-  bool has_frame_time_us() const { return _has_field_[4]; }
-  int64_t frame_time_us() const { return frame_time_us_; }
-  void set_frame_time_us(int64_t value) { frame_time_us_ = value; _has_field_.set(4); }
-
-  bool has_deadline_us() const { return _has_field_[5]; }
-  int64_t deadline_us() const { return deadline_us_; }
-  void set_deadline_us(int64_t value) { deadline_us_ = value; _has_field_.set(5); }
-
-  bool has_interval_delta_us() const { return _has_field_[6]; }
-  int64_t interval_delta_us() const { return interval_delta_us_; }
-  void set_interval_delta_us(int64_t value) { interval_delta_us_ = value; _has_field_.set(6); }
-
-  bool has_on_critical_path() const { return _has_field_[7]; }
-  bool on_critical_path() const { return on_critical_path_; }
-  void set_on_critical_path(bool value) { on_critical_path_ = value; _has_field_.set(7); }
-
-  bool has_animate_only() const { return _has_field_[8]; }
-  bool animate_only() const { return animate_only_; }
-  void set_animate_only(bool value) { animate_only_ = value; _has_field_.set(8); }
-
-  bool has_source_location_iid() const { return _has_field_[9]; }
-  uint64_t source_location_iid() const { return source_location_iid_; }
-  void set_source_location_iid(uint64_t value) { source_location_iid_ = value; _has_field_.set(9); }
-
-  bool has_source_location() const { return _has_field_[10]; }
-  const SourceLocation& source_location() const { return *source_location_; }
-  SourceLocation* mutable_source_location() { _has_field_.set(10); return source_location_.get(); }
-
- private:
-  BeginFrameArgs_BeginFrameArgsType type_{};
-  uint64_t source_id_{};
-  uint64_t sequence_number_{};
-  int64_t frame_time_us_{};
-  int64_t deadline_us_{};
-  int64_t interval_delta_us_{};
-  bool on_critical_path_{};
-  bool animate_only_{};
-  uint64_t source_location_iid_{};
-  ::protozero::CopyablePtr<SourceLocation> source_location_;
-
-  // Allows to preserve unknown protobuf fields for compatibility
-  // with future versions of .proto files.
-  std::string unknown_fields_;
-
-  std::bitset<11> _has_field_{};
-};
-
-
-class PERFETTO_EXPORT BeginFrameObserverState : public ::protozero::CppMessageObj {
- public:
-  enum FieldNumbers {
-    kDroppedBeginFrameArgsFieldNumber = 1,
-    kLastBeginFrameArgsFieldNumber = 2,
-  };
-
-  BeginFrameObserverState();
-  ~BeginFrameObserverState() override;
-  BeginFrameObserverState(BeginFrameObserverState&&) noexcept;
-  BeginFrameObserverState& operator=(BeginFrameObserverState&&);
-  BeginFrameObserverState(const BeginFrameObserverState&);
-  BeginFrameObserverState& operator=(const BeginFrameObserverState&);
-  bool operator==(const BeginFrameObserverState&) const;
-  bool operator!=(const BeginFrameObserverState& other) const { return !(*this == other); }
-
-  bool ParseFromArray(const void*, size_t) override;
-  std::string SerializeAsString() const override;
-  std::vector<uint8_t> SerializeAsArray() const override;
-  void Serialize(::protozero::Message*) const;
-
-  bool has_dropped_begin_frame_args() const { return _has_field_[1]; }
-  int64_t dropped_begin_frame_args() const { return dropped_begin_frame_args_; }
-  void set_dropped_begin_frame_args(int64_t value) { dropped_begin_frame_args_ = value; _has_field_.set(1); }
-
-  bool has_last_begin_frame_args() const { return _has_field_[2]; }
-  const BeginFrameArgs& last_begin_frame_args() const { return *last_begin_frame_args_; }
-  BeginFrameArgs* mutable_last_begin_frame_args() { _has_field_.set(2); return last_begin_frame_args_.get(); }
-
- private:
-  int64_t dropped_begin_frame_args_{};
-  ::protozero::CopyablePtr<BeginFrameArgs> last_begin_frame_args_;
-
-  // Allows to preserve unknown protobuf fields for compatibility
-  // with future versions of .proto files.
-  std::string unknown_fields_;
-
-  std::bitset<3> _has_field_{};
-};
-
-
-class PERFETTO_EXPORT BeginImplFrameArgs : public ::protozero::CppMessageObj {
- public:
-  using TimestampsInUs = BeginImplFrameArgs_TimestampsInUs;
-  using State = BeginImplFrameArgs_State;
-  static constexpr auto BEGIN_FRAME_FINISHED = BeginImplFrameArgs_State_BEGIN_FRAME_FINISHED;
-  static constexpr auto BEGIN_FRAME_USING = BeginImplFrameArgs_State_BEGIN_FRAME_USING;
-  static constexpr auto State_MIN = BeginImplFrameArgs_State_BEGIN_FRAME_FINISHED;
-  static constexpr auto State_MAX = BeginImplFrameArgs_State_BEGIN_FRAME_USING;
-  enum FieldNumbers {
-    kUpdatedAtUsFieldNumber = 1,
-    kFinishedAtUsFieldNumber = 2,
-    kStateFieldNumber = 3,
-    kCurrentArgsFieldNumber = 4,
-    kLastArgsFieldNumber = 5,
-    kTimestampsInUsFieldNumber = 6,
-  };
-
-  BeginImplFrameArgs();
-  ~BeginImplFrameArgs() override;
-  BeginImplFrameArgs(BeginImplFrameArgs&&) noexcept;
-  BeginImplFrameArgs& operator=(BeginImplFrameArgs&&);
-  BeginImplFrameArgs(const BeginImplFrameArgs&);
-  BeginImplFrameArgs& operator=(const BeginImplFrameArgs&);
-  bool operator==(const BeginImplFrameArgs&) const;
-  bool operator!=(const BeginImplFrameArgs& other) const { return !(*this == other); }
-
-  bool ParseFromArray(const void*, size_t) override;
-  std::string SerializeAsString() const override;
-  std::vector<uint8_t> SerializeAsArray() const override;
-  void Serialize(::protozero::Message*) const;
-
-  bool has_updated_at_us() const { return _has_field_[1]; }
-  int64_t updated_at_us() const { return updated_at_us_; }
-  void set_updated_at_us(int64_t value) { updated_at_us_ = value; _has_field_.set(1); }
-
-  bool has_finished_at_us() const { return _has_field_[2]; }
-  int64_t finished_at_us() const { return finished_at_us_; }
-  void set_finished_at_us(int64_t value) { finished_at_us_ = value; _has_field_.set(2); }
-
-  bool has_state() const { return _has_field_[3]; }
-  BeginImplFrameArgs_State state() const { return state_; }
-  void set_state(BeginImplFrameArgs_State value) { state_ = value; _has_field_.set(3); }
-
-  bool has_current_args() const { return _has_field_[4]; }
-  const BeginFrameArgs& current_args() const { return *current_args_; }
-  BeginFrameArgs* mutable_current_args() { _has_field_.set(4); return current_args_.get(); }
-
-  bool has_last_args() const { return _has_field_[5]; }
-  const BeginFrameArgs& last_args() const { return *last_args_; }
-  BeginFrameArgs* mutable_last_args() { _has_field_.set(5); return last_args_.get(); }
-
-  bool has_timestamps_in_us() const { return _has_field_[6]; }
-  const BeginImplFrameArgs_TimestampsInUs& timestamps_in_us() const { return *timestamps_in_us_; }
-  BeginImplFrameArgs_TimestampsInUs* mutable_timestamps_in_us() { _has_field_.set(6); return timestamps_in_us_.get(); }
-
- private:
-  int64_t updated_at_us_{};
-  int64_t finished_at_us_{};
-  BeginImplFrameArgs_State state_{};
-  ::protozero::CopyablePtr<BeginFrameArgs> current_args_;
-  ::protozero::CopyablePtr<BeginFrameArgs> last_args_;
-  ::protozero::CopyablePtr<BeginImplFrameArgs_TimestampsInUs> timestamps_in_us_;
-
-  // Allows to preserve unknown protobuf fields for compatibility
-  // with future versions of .proto files.
-  std::string unknown_fields_;
-
-  std::bitset<7> _has_field_{};
-};
-
-
-class PERFETTO_EXPORT BeginImplFrameArgs_TimestampsInUs : public ::protozero::CppMessageObj {
- public:
-  enum FieldNumbers {
-    kIntervalDeltaFieldNumber = 1,
-    kNowToDeadlineDeltaFieldNumber = 2,
-    kFrameTimeToNowDeltaFieldNumber = 3,
-    kFrameTimeToDeadlineDeltaFieldNumber = 4,
-    kNowFieldNumber = 5,
-    kFrameTimeFieldNumber = 6,
-    kDeadlineFieldNumber = 7,
-  };
-
-  BeginImplFrameArgs_TimestampsInUs();
-  ~BeginImplFrameArgs_TimestampsInUs() override;
-  BeginImplFrameArgs_TimestampsInUs(BeginImplFrameArgs_TimestampsInUs&&) noexcept;
-  BeginImplFrameArgs_TimestampsInUs& operator=(BeginImplFrameArgs_TimestampsInUs&&);
-  BeginImplFrameArgs_TimestampsInUs(const BeginImplFrameArgs_TimestampsInUs&);
-  BeginImplFrameArgs_TimestampsInUs& operator=(const BeginImplFrameArgs_TimestampsInUs&);
-  bool operator==(const BeginImplFrameArgs_TimestampsInUs&) const;
-  bool operator!=(const BeginImplFrameArgs_TimestampsInUs& other) const { return !(*this == other); }
-
-  bool ParseFromArray(const void*, size_t) override;
-  std::string SerializeAsString() const override;
-  std::vector<uint8_t> SerializeAsArray() const override;
-  void Serialize(::protozero::Message*) const;
-
-  bool has_interval_delta() const { return _has_field_[1]; }
-  int64_t interval_delta() const { return interval_delta_; }
-  void set_interval_delta(int64_t value) { interval_delta_ = value; _has_field_.set(1); }
-
-  bool has_now_to_deadline_delta() const { return _has_field_[2]; }
-  int64_t now_to_deadline_delta() const { return now_to_deadline_delta_; }
-  void set_now_to_deadline_delta(int64_t value) { now_to_deadline_delta_ = value; _has_field_.set(2); }
-
-  bool has_frame_time_to_now_delta() const { return _has_field_[3]; }
-  int64_t frame_time_to_now_delta() const { return frame_time_to_now_delta_; }
-  void set_frame_time_to_now_delta(int64_t value) { frame_time_to_now_delta_ = value; _has_field_.set(3); }
-
-  bool has_frame_time_to_deadline_delta() const { return _has_field_[4]; }
-  int64_t frame_time_to_deadline_delta() const { return frame_time_to_deadline_delta_; }
-  void set_frame_time_to_deadline_delta(int64_t value) { frame_time_to_deadline_delta_ = value; _has_field_.set(4); }
-
-  bool has_now() const { return _has_field_[5]; }
-  int64_t now() const { return now_; }
-  void set_now(int64_t value) { now_ = value; _has_field_.set(5); }
-
-  bool has_frame_time() const { return _has_field_[6]; }
-  int64_t frame_time() const { return frame_time_; }
-  void set_frame_time(int64_t value) { frame_time_ = value; _has_field_.set(6); }
-
-  bool has_deadline() const { return _has_field_[7]; }
-  int64_t deadline() const { return deadline_; }
-  void set_deadline(int64_t value) { deadline_ = value; _has_field_.set(7); }
-
- private:
-  int64_t interval_delta_{};
-  int64_t now_to_deadline_delta_{};
-  int64_t frame_time_to_now_delta_{};
-  int64_t frame_time_to_deadline_delta_{};
-  int64_t now_{};
-  int64_t frame_time_{};
-  int64_t deadline_{};
-
-  // Allows to preserve unknown protobuf fields for compatibility
-  // with future versions of .proto files.
-  std::string unknown_fields_;
-
-  std::bitset<8> _has_field_{};
-};
-
-
-class PERFETTO_EXPORT ChromeCompositorStateMachine : public ::protozero::CppMessageObj {
- public:
-  using MajorState = ChromeCompositorStateMachine_MajorState;
-  using MinorState = ChromeCompositorStateMachine_MinorState;
-  enum FieldNumbers {
-    kMajorStateFieldNumber = 1,
-    kMinorStateFieldNumber = 2,
-  };
-
-  ChromeCompositorStateMachine();
-  ~ChromeCompositorStateMachine() override;
-  ChromeCompositorStateMachine(ChromeCompositorStateMachine&&) noexcept;
-  ChromeCompositorStateMachine& operator=(ChromeCompositorStateMachine&&);
-  ChromeCompositorStateMachine(const ChromeCompositorStateMachine&);
-  ChromeCompositorStateMachine& operator=(const ChromeCompositorStateMachine&);
-  bool operator==(const ChromeCompositorStateMachine&) const;
-  bool operator!=(const ChromeCompositorStateMachine& other) const { return !(*this == other); }
-
-  bool ParseFromArray(const void*, size_t) override;
-  std::string SerializeAsString() const override;
-  std::vector<uint8_t> SerializeAsArray() const override;
-  void Serialize(::protozero::Message*) const;
-
-  bool has_major_state() const { return _has_field_[1]; }
-  const ChromeCompositorStateMachine_MajorState& major_state() const { return *major_state_; }
-  ChromeCompositorStateMachine_MajorState* mutable_major_state() { _has_field_.set(1); return major_state_.get(); }
-
-  bool has_minor_state() const { return _has_field_[2]; }
-  const ChromeCompositorStateMachine_MinorState& minor_state() const { return *minor_state_; }
-  ChromeCompositorStateMachine_MinorState* mutable_minor_state() { _has_field_.set(2); return minor_state_.get(); }
-
- private:
-  ::protozero::CopyablePtr<ChromeCompositorStateMachine_MajorState> major_state_;
-  ::protozero::CopyablePtr<ChromeCompositorStateMachine_MinorState> minor_state_;
-
-  // Allows to preserve unknown protobuf fields for compatibility
-  // with future versions of .proto files.
-  std::string unknown_fields_;
-
-  std::bitset<3> _has_field_{};
-};
-
-
-class PERFETTO_EXPORT ChromeCompositorStateMachine_MinorState : public ::protozero::CppMessageObj {
- public:
-  using TreePriority = ChromeCompositorStateMachine_MinorState_TreePriority;
-  static constexpr auto TREE_PRIORITY_UNSPECIFIED = ChromeCompositorStateMachine_MinorState_TreePriority_TREE_PRIORITY_UNSPECIFIED;
-  static constexpr auto TREE_PRIORITY_SAME_PRIORITY_FOR_BOTH_TREES = ChromeCompositorStateMachine_MinorState_TreePriority_TREE_PRIORITY_SAME_PRIORITY_FOR_BOTH_TREES;
-  static constexpr auto TREE_PRIORITY_SMOOTHNESS_TAKES_PRIORITY = ChromeCompositorStateMachine_MinorState_TreePriority_TREE_PRIORITY_SMOOTHNESS_TAKES_PRIORITY;
-  static constexpr auto TREE_PRIORITY_NEW_CONTENT_TAKES_PRIORITY = ChromeCompositorStateMachine_MinorState_TreePriority_TREE_PRIORITY_NEW_CONTENT_TAKES_PRIORITY;
-  static constexpr auto TreePriority_MIN = ChromeCompositorStateMachine_MinorState_TreePriority_TREE_PRIORITY_UNSPECIFIED;
-  static constexpr auto TreePriority_MAX = ChromeCompositorStateMachine_MinorState_TreePriority_TREE_PRIORITY_NEW_CONTENT_TAKES_PRIORITY;
-  using ScrollHandlerState = ChromeCompositorStateMachine_MinorState_ScrollHandlerState;
-  static constexpr auto SCROLL_HANDLER_UNSPECIFIED = ChromeCompositorStateMachine_MinorState_ScrollHandlerState_SCROLL_HANDLER_UNSPECIFIED;
-  static constexpr auto SCROLL_AFFECTS_SCROLL_HANDLER = ChromeCompositorStateMachine_MinorState_ScrollHandlerState_SCROLL_AFFECTS_SCROLL_HANDLER;
-  static constexpr auto SCROLL_DOES_NOT_AFFECT_SCROLL_HANDLER = ChromeCompositorStateMachine_MinorState_ScrollHandlerState_SCROLL_DOES_NOT_AFFECT_SCROLL_HANDLER;
-  static constexpr auto ScrollHandlerState_MIN = ChromeCompositorStateMachine_MinorState_ScrollHandlerState_SCROLL_HANDLER_UNSPECIFIED;
-  static constexpr auto ScrollHandlerState_MAX = ChromeCompositorStateMachine_MinorState_ScrollHandlerState_SCROLL_DOES_NOT_AFFECT_SCROLL_HANDLER;
-  enum FieldNumbers {
-    kCommitCountFieldNumber = 1,
-    kCurrentFrameNumberFieldNumber = 2,
-    kLastFrameNumberSubmitPerformedFieldNumber = 3,
-    kLastFrameNumberDrawPerformedFieldNumber = 4,
-    kLastFrameNumberBeginMainFrameSentFieldNumber = 5,
-    kDidDrawFieldNumber = 6,
-    kDidSendBeginMainFrameForCurrentFrameFieldNumber = 7,
-    kDidNotifyBeginMainFrameNotExpectedUntilFieldNumber = 8,
-    kDidNotifyBeginMainFrameNotExpectedSoonFieldNumber = 9,
-    kWantsBeginMainFrameNotExpectedFieldNumber = 10,
-    kDidCommitDuringFrameFieldNumber = 11,
-    kDidInvalidateLayerTreeFrameSinkFieldNumber = 12,
-    kDidPerformImplSideInvalidaionFieldNumber = 13,
-    kDidPrepareTilesFieldNumber = 14,
-    kConsecutiveCheckerboardAnimationsFieldNumber = 15,
-    kPendingSubmitFramesFieldNumber = 16,
-    kSubmitFramesWithCurrentLayerTreeFrameSinkFieldNumber = 17,
-    kNeedsRedrawFieldNumber = 18,
-    kNeedsPrepareTilesFieldNumber = 19,
-    kNeedsBeginMainFrameFieldNumber = 20,
-    kNeedsOneBeginImplFrameFieldNumber = 21,
-    kVisibleFieldNumber = 22,
-    kBeginFrameSourcePausedFieldNumber = 23,
-    kCanDrawFieldNumber = 24,
-    kResourcelessDrawFieldNumber = 25,
-    kHasPendingTreeFieldNumber = 26,
-    kPendingTreeIsReadyForActivationFieldNumber = 27,
-    kActiveTreeNeedsFirstDrawFieldNumber = 28,
-    kActiveTreeIsReadyToDrawFieldNumber = 29,
-    kDidCreateAndInitializeFirstLayerTreeFrameSinkFieldNumber = 30,
-    kTreePriorityFieldNumber = 31,
-    kScrollHandlerStateFieldNumber = 32,
-    kCriticalBeginMainFrameToActivateIsFastFieldNumber = 33,
-    kMainThreadMissedLastDeadlineFieldNumber = 34,
-    kSkipNextBeginMainFrameToReduceLatencyFieldNumber = 35,
-    kVideoNeedsBeginFramesFieldNumber = 36,
-    kDeferBeginMainFrameFieldNumber = 37,
-    kLastCommitHadNoUpdatesFieldNumber = 38,
-    kDidDrawInLastFrameFieldNumber = 39,
-    kDidSubmitInLastFrameFieldNumber = 40,
-    kNeedsImplSideInvalidationFieldNumber = 41,
-    kCurrentPendingTreeIsImplSideFieldNumber = 42,
-    kPreviousPendingTreeWasImplSideFieldNumber = 43,
-    kProcessingAnimationWorkletsForActiveTreeFieldNumber = 44,
-    kProcessingAnimationWorkletsForPendingTreeFieldNumber = 45,
-    kProcessingPaintWorkletsForPendingTreeFieldNumber = 46,
-  };
-
-  ChromeCompositorStateMachine_MinorState();
-  ~ChromeCompositorStateMachine_MinorState() override;
-  ChromeCompositorStateMachine_MinorState(ChromeCompositorStateMachine_MinorState&&) noexcept;
-  ChromeCompositorStateMachine_MinorState& operator=(ChromeCompositorStateMachine_MinorState&&);
-  ChromeCompositorStateMachine_MinorState(const ChromeCompositorStateMachine_MinorState&);
-  ChromeCompositorStateMachine_MinorState& operator=(const ChromeCompositorStateMachine_MinorState&);
-  bool operator==(const ChromeCompositorStateMachine_MinorState&) const;
-  bool operator!=(const ChromeCompositorStateMachine_MinorState& other) const { return !(*this == other); }
-
-  bool ParseFromArray(const void*, size_t) override;
-  std::string SerializeAsString() const override;
-  std::vector<uint8_t> SerializeAsArray() const override;
-  void Serialize(::protozero::Message*) const;
-
-  bool has_commit_count() const { return _has_field_[1]; }
-  int32_t commit_count() const { return commit_count_; }
-  void set_commit_count(int32_t value) { commit_count_ = value; _has_field_.set(1); }
-
-  bool has_current_frame_number() const { return _has_field_[2]; }
-  int32_t current_frame_number() const { return current_frame_number_; }
-  void set_current_frame_number(int32_t value) { current_frame_number_ = value; _has_field_.set(2); }
-
-  bool has_last_frame_number_submit_performed() const { return _has_field_[3]; }
-  int32_t last_frame_number_submit_performed() const { return last_frame_number_submit_performed_; }
-  void set_last_frame_number_submit_performed(int32_t value) { last_frame_number_submit_performed_ = value; _has_field_.set(3); }
-
-  bool has_last_frame_number_draw_performed() const { return _has_field_[4]; }
-  int32_t last_frame_number_draw_performed() const { return last_frame_number_draw_performed_; }
-  void set_last_frame_number_draw_performed(int32_t value) { last_frame_number_draw_performed_ = value; _has_field_.set(4); }
-
-  bool has_last_frame_number_begin_main_frame_sent() const { return _has_field_[5]; }
-  int32_t last_frame_number_begin_main_frame_sent() const { return last_frame_number_begin_main_frame_sent_; }
-  void set_last_frame_number_begin_main_frame_sent(int32_t value) { last_frame_number_begin_main_frame_sent_ = value; _has_field_.set(5); }
-
-  bool has_did_draw() const { return _has_field_[6]; }
-  bool did_draw() const { return did_draw_; }
-  void set_did_draw(bool value) { did_draw_ = value; _has_field_.set(6); }
-
-  bool has_did_send_begin_main_frame_for_current_frame() const { return _has_field_[7]; }
-  bool did_send_begin_main_frame_for_current_frame() const { return did_send_begin_main_frame_for_current_frame_; }
-  void set_did_send_begin_main_frame_for_current_frame(bool value) { did_send_begin_main_frame_for_current_frame_ = value; _has_field_.set(7); }
-
-  bool has_did_notify_begin_main_frame_not_expected_until() const { return _has_field_[8]; }
-  bool did_notify_begin_main_frame_not_expected_until() const { return did_notify_begin_main_frame_not_expected_until_; }
-  void set_did_notify_begin_main_frame_not_expected_until(bool value) { did_notify_begin_main_frame_not_expected_until_ = value; _has_field_.set(8); }
-
-  bool has_did_notify_begin_main_frame_not_expected_soon() const { return _has_field_[9]; }
-  bool did_notify_begin_main_frame_not_expected_soon() const { return did_notify_begin_main_frame_not_expected_soon_; }
-  void set_did_notify_begin_main_frame_not_expected_soon(bool value) { did_notify_begin_main_frame_not_expected_soon_ = value; _has_field_.set(9); }
-
-  bool has_wants_begin_main_frame_not_expected() const { return _has_field_[10]; }
-  bool wants_begin_main_frame_not_expected() const { return wants_begin_main_frame_not_expected_; }
-  void set_wants_begin_main_frame_not_expected(bool value) { wants_begin_main_frame_not_expected_ = value; _has_field_.set(10); }
-
-  bool has_did_commit_during_frame() const { return _has_field_[11]; }
-  bool did_commit_during_frame() const { return did_commit_during_frame_; }
-  void set_did_commit_during_frame(bool value) { did_commit_during_frame_ = value; _has_field_.set(11); }
-
-  bool has_did_invalidate_layer_tree_frame_sink() const { return _has_field_[12]; }
-  bool did_invalidate_layer_tree_frame_sink() const { return did_invalidate_layer_tree_frame_sink_; }
-  void set_did_invalidate_layer_tree_frame_sink(bool value) { did_invalidate_layer_tree_frame_sink_ = value; _has_field_.set(12); }
-
-  bool has_did_perform_impl_side_invalidaion() const { return _has_field_[13]; }
-  bool did_perform_impl_side_invalidaion() const { return did_perform_impl_side_invalidaion_; }
-  void set_did_perform_impl_side_invalidaion(bool value) { did_perform_impl_side_invalidaion_ = value; _has_field_.set(13); }
-
-  bool has_did_prepare_tiles() const { return _has_field_[14]; }
-  bool did_prepare_tiles() const { return did_prepare_tiles_; }
-  void set_did_prepare_tiles(bool value) { did_prepare_tiles_ = value; _has_field_.set(14); }
-
-  bool has_consecutive_checkerboard_animations() const { return _has_field_[15]; }
-  int32_t consecutive_checkerboard_animations() const { return consecutive_checkerboard_animations_; }
-  void set_consecutive_checkerboard_animations(int32_t value) { consecutive_checkerboard_animations_ = value; _has_field_.set(15); }
-
-  bool has_pending_submit_frames() const { return _has_field_[16]; }
-  int32_t pending_submit_frames() const { return pending_submit_frames_; }
-  void set_pending_submit_frames(int32_t value) { pending_submit_frames_ = value; _has_field_.set(16); }
-
-  bool has_submit_frames_with_current_layer_tree_frame_sink() const { return _has_field_[17]; }
-  int32_t submit_frames_with_current_layer_tree_frame_sink() const { return submit_frames_with_current_layer_tree_frame_sink_; }
-  void set_submit_frames_with_current_layer_tree_frame_sink(int32_t value) { submit_frames_with_current_layer_tree_frame_sink_ = value; _has_field_.set(17); }
-
-  bool has_needs_redraw() const { return _has_field_[18]; }
-  bool needs_redraw() const { return needs_redraw_; }
-  void set_needs_redraw(bool value) { needs_redraw_ = value; _has_field_.set(18); }
-
-  bool has_needs_prepare_tiles() const { return _has_field_[19]; }
-  bool needs_prepare_tiles() const { return needs_prepare_tiles_; }
-  void set_needs_prepare_tiles(bool value) { needs_prepare_tiles_ = value; _has_field_.set(19); }
-
-  bool has_needs_begin_main_frame() const { return _has_field_[20]; }
-  bool needs_begin_main_frame() const { return needs_begin_main_frame_; }
-  void set_needs_begin_main_frame(bool value) { needs_begin_main_frame_ = value; _has_field_.set(20); }
-
-  bool has_needs_one_begin_impl_frame() const { return _has_field_[21]; }
-  bool needs_one_begin_impl_frame() const { return needs_one_begin_impl_frame_; }
-  void set_needs_one_begin_impl_frame(bool value) { needs_one_begin_impl_frame_ = value; _has_field_.set(21); }
-
-  bool has_visible() const { return _has_field_[22]; }
-  bool visible() const { return visible_; }
-  void set_visible(bool value) { visible_ = value; _has_field_.set(22); }
-
-  bool has_begin_frame_source_paused() const { return _has_field_[23]; }
-  bool begin_frame_source_paused() const { return begin_frame_source_paused_; }
-  void set_begin_frame_source_paused(bool value) { begin_frame_source_paused_ = value; _has_field_.set(23); }
-
-  bool has_can_draw() const { return _has_field_[24]; }
-  bool can_draw() const { return can_draw_; }
-  void set_can_draw(bool value) { can_draw_ = value; _has_field_.set(24); }
-
-  bool has_resourceless_draw() const { return _has_field_[25]; }
-  bool resourceless_draw() const { return resourceless_draw_; }
-  void set_resourceless_draw(bool value) { resourceless_draw_ = value; _has_field_.set(25); }
-
-  bool has_has_pending_tree() const { return _has_field_[26]; }
-  bool has_pending_tree() const { return has_pending_tree_; }
-  void set_has_pending_tree(bool value) { has_pending_tree_ = value; _has_field_.set(26); }
-
-  bool has_pending_tree_is_ready_for_activation() const { return _has_field_[27]; }
-  bool pending_tree_is_ready_for_activation() const { return pending_tree_is_ready_for_activation_; }
-  void set_pending_tree_is_ready_for_activation(bool value) { pending_tree_is_ready_for_activation_ = value; _has_field_.set(27); }
-
-  bool has_active_tree_needs_first_draw() const { return _has_field_[28]; }
-  bool active_tree_needs_first_draw() const { return active_tree_needs_first_draw_; }
-  void set_active_tree_needs_first_draw(bool value) { active_tree_needs_first_draw_ = value; _has_field_.set(28); }
-
-  bool has_active_tree_is_ready_to_draw() const { return _has_field_[29]; }
-  bool active_tree_is_ready_to_draw() const { return active_tree_is_ready_to_draw_; }
-  void set_active_tree_is_ready_to_draw(bool value) { active_tree_is_ready_to_draw_ = value; _has_field_.set(29); }
-
-  bool has_did_create_and_initialize_first_layer_tree_frame_sink() const { return _has_field_[30]; }
-  bool did_create_and_initialize_first_layer_tree_frame_sink() const { return did_create_and_initialize_first_layer_tree_frame_sink_; }
-  void set_did_create_and_initialize_first_layer_tree_frame_sink(bool value) { did_create_and_initialize_first_layer_tree_frame_sink_ = value; _has_field_.set(30); }
-
-  bool has_tree_priority() const { return _has_field_[31]; }
-  ChromeCompositorStateMachine_MinorState_TreePriority tree_priority() const { return tree_priority_; }
-  void set_tree_priority(ChromeCompositorStateMachine_MinorState_TreePriority value) { tree_priority_ = value; _has_field_.set(31); }
-
-  bool has_scroll_handler_state() const { return _has_field_[32]; }
-  ChromeCompositorStateMachine_MinorState_ScrollHandlerState scroll_handler_state() const { return scroll_handler_state_; }
-  void set_scroll_handler_state(ChromeCompositorStateMachine_MinorState_ScrollHandlerState value) { scroll_handler_state_ = value; _has_field_.set(32); }
-
-  bool has_critical_begin_main_frame_to_activate_is_fast() const { return _has_field_[33]; }
-  bool critical_begin_main_frame_to_activate_is_fast() const { return critical_begin_main_frame_to_activate_is_fast_; }
-  void set_critical_begin_main_frame_to_activate_is_fast(bool value) { critical_begin_main_frame_to_activate_is_fast_ = value; _has_field_.set(33); }
-
-  bool has_main_thread_missed_last_deadline() const { return _has_field_[34]; }
-  bool main_thread_missed_last_deadline() const { return main_thread_missed_last_deadline_; }
-  void set_main_thread_missed_last_deadline(bool value) { main_thread_missed_last_deadline_ = value; _has_field_.set(34); }
-
-  bool has_skip_next_begin_main_frame_to_reduce_latency() const { return _has_field_[35]; }
-  bool skip_next_begin_main_frame_to_reduce_latency() const { return skip_next_begin_main_frame_to_reduce_latency_; }
-  void set_skip_next_begin_main_frame_to_reduce_latency(bool value) { skip_next_begin_main_frame_to_reduce_latency_ = value; _has_field_.set(35); }
-
-  bool has_video_needs_begin_frames() const { return _has_field_[36]; }
-  bool video_needs_begin_frames() const { return video_needs_begin_frames_; }
-  void set_video_needs_begin_frames(bool value) { video_needs_begin_frames_ = value; _has_field_.set(36); }
-
-  bool has_defer_begin_main_frame() const { return _has_field_[37]; }
-  bool defer_begin_main_frame() const { return defer_begin_main_frame_; }
-  void set_defer_begin_main_frame(bool value) { defer_begin_main_frame_ = value; _has_field_.set(37); }
-
-  bool has_last_commit_had_no_updates() const { return _has_field_[38]; }
-  bool last_commit_had_no_updates() const { return last_commit_had_no_updates_; }
-  void set_last_commit_had_no_updates(bool value) { last_commit_had_no_updates_ = value; _has_field_.set(38); }
-
-  bool has_did_draw_in_last_frame() const { return _has_field_[39]; }
-  bool did_draw_in_last_frame() const { return did_draw_in_last_frame_; }
-  void set_did_draw_in_last_frame(bool value) { did_draw_in_last_frame_ = value; _has_field_.set(39); }
-
-  bool has_did_submit_in_last_frame() const { return _has_field_[40]; }
-  bool did_submit_in_last_frame() const { return did_submit_in_last_frame_; }
-  void set_did_submit_in_last_frame(bool value) { did_submit_in_last_frame_ = value; _has_field_.set(40); }
-
-  bool has_needs_impl_side_invalidation() const { return _has_field_[41]; }
-  bool needs_impl_side_invalidation() const { return needs_impl_side_invalidation_; }
-  void set_needs_impl_side_invalidation(bool value) { needs_impl_side_invalidation_ = value; _has_field_.set(41); }
-
-  bool has_current_pending_tree_is_impl_side() const { return _has_field_[42]; }
-  bool current_pending_tree_is_impl_side() const { return current_pending_tree_is_impl_side_; }
-  void set_current_pending_tree_is_impl_side(bool value) { current_pending_tree_is_impl_side_ = value; _has_field_.set(42); }
-
-  bool has_previous_pending_tree_was_impl_side() const { return _has_field_[43]; }
-  bool previous_pending_tree_was_impl_side() const { return previous_pending_tree_was_impl_side_; }
-  void set_previous_pending_tree_was_impl_side(bool value) { previous_pending_tree_was_impl_side_ = value; _has_field_.set(43); }
-
-  bool has_processing_animation_worklets_for_active_tree() const { return _has_field_[44]; }
-  bool processing_animation_worklets_for_active_tree() const { return processing_animation_worklets_for_active_tree_; }
-  void set_processing_animation_worklets_for_active_tree(bool value) { processing_animation_worklets_for_active_tree_ = value; _has_field_.set(44); }
-
-  bool has_processing_animation_worklets_for_pending_tree() const { return _has_field_[45]; }
-  bool processing_animation_worklets_for_pending_tree() const { return processing_animation_worklets_for_pending_tree_; }
-  void set_processing_animation_worklets_for_pending_tree(bool value) { processing_animation_worklets_for_pending_tree_ = value; _has_field_.set(45); }
-
-  bool has_processing_paint_worklets_for_pending_tree() const { return _has_field_[46]; }
-  bool processing_paint_worklets_for_pending_tree() const { return processing_paint_worklets_for_pending_tree_; }
-  void set_processing_paint_worklets_for_pending_tree(bool value) { processing_paint_worklets_for_pending_tree_ = value; _has_field_.set(46); }
-
- private:
-  int32_t commit_count_{};
-  int32_t current_frame_number_{};
-  int32_t last_frame_number_submit_performed_{};
-  int32_t last_frame_number_draw_performed_{};
-  int32_t last_frame_number_begin_main_frame_sent_{};
-  bool did_draw_{};
-  bool did_send_begin_main_frame_for_current_frame_{};
-  bool did_notify_begin_main_frame_not_expected_until_{};
-  bool did_notify_begin_main_frame_not_expected_soon_{};
-  bool wants_begin_main_frame_not_expected_{};
-  bool did_commit_during_frame_{};
-  bool did_invalidate_layer_tree_frame_sink_{};
-  bool did_perform_impl_side_invalidaion_{};
-  bool did_prepare_tiles_{};
-  int32_t consecutive_checkerboard_animations_{};
-  int32_t pending_submit_frames_{};
-  int32_t submit_frames_with_current_layer_tree_frame_sink_{};
-  bool needs_redraw_{};
-  bool needs_prepare_tiles_{};
-  bool needs_begin_main_frame_{};
-  bool needs_one_begin_impl_frame_{};
-  bool visible_{};
-  bool begin_frame_source_paused_{};
-  bool can_draw_{};
-  bool resourceless_draw_{};
-  bool has_pending_tree_{};
-  bool pending_tree_is_ready_for_activation_{};
-  bool active_tree_needs_first_draw_{};
-  bool active_tree_is_ready_to_draw_{};
-  bool did_create_and_initialize_first_layer_tree_frame_sink_{};
-  ChromeCompositorStateMachine_MinorState_TreePriority tree_priority_{};
-  ChromeCompositorStateMachine_MinorState_ScrollHandlerState scroll_handler_state_{};
-  bool critical_begin_main_frame_to_activate_is_fast_{};
-  bool main_thread_missed_last_deadline_{};
-  bool skip_next_begin_main_frame_to_reduce_latency_{};
-  bool video_needs_begin_frames_{};
-  bool defer_begin_main_frame_{};
-  bool last_commit_had_no_updates_{};
-  bool did_draw_in_last_frame_{};
-  bool did_submit_in_last_frame_{};
-  bool needs_impl_side_invalidation_{};
-  bool current_pending_tree_is_impl_side_{};
-  bool previous_pending_tree_was_impl_side_{};
-  bool processing_animation_worklets_for_active_tree_{};
-  bool processing_animation_worklets_for_pending_tree_{};
-  bool processing_paint_worklets_for_pending_tree_{};
-
-  // Allows to preserve unknown protobuf fields for compatibility
-  // with future versions of .proto files.
-  std::string unknown_fields_;
-
-  std::bitset<47> _has_field_{};
-};
-
-
-class PERFETTO_EXPORT ChromeCompositorStateMachine_MajorState : public ::protozero::CppMessageObj {
- public:
-  using BeginImplFrameState = ChromeCompositorStateMachine_MajorState_BeginImplFrameState;
-  static constexpr auto BEGIN_IMPL_FRAME_UNSPECIFIED = ChromeCompositorStateMachine_MajorState_BeginImplFrameState_BEGIN_IMPL_FRAME_UNSPECIFIED;
-  static constexpr auto BEGIN_IMPL_FRAME_IDLE = ChromeCompositorStateMachine_MajorState_BeginImplFrameState_BEGIN_IMPL_FRAME_IDLE;
-  static constexpr auto BEGIN_IMPL_FRAME_INSIDE_BEGIN_FRAME = ChromeCompositorStateMachine_MajorState_BeginImplFrameState_BEGIN_IMPL_FRAME_INSIDE_BEGIN_FRAME;
-  static constexpr auto BEGIN_IMPL_FRAME_INSIDE_DEADLINE = ChromeCompositorStateMachine_MajorState_BeginImplFrameState_BEGIN_IMPL_FRAME_INSIDE_DEADLINE;
-  static constexpr auto BeginImplFrameState_MIN = ChromeCompositorStateMachine_MajorState_BeginImplFrameState_BEGIN_IMPL_FRAME_UNSPECIFIED;
-  static constexpr auto BeginImplFrameState_MAX = ChromeCompositorStateMachine_MajorState_BeginImplFrameState_BEGIN_IMPL_FRAME_INSIDE_DEADLINE;
-  using BeginMainFrameState = ChromeCompositorStateMachine_MajorState_BeginMainFrameState;
-  static constexpr auto BEGIN_MAIN_FRAME_UNSPECIFIED = ChromeCompositorStateMachine_MajorState_BeginMainFrameState_BEGIN_MAIN_FRAME_UNSPECIFIED;
-  static constexpr auto BEGIN_MAIN_FRAME_IDLE = ChromeCompositorStateMachine_MajorState_BeginMainFrameState_BEGIN_MAIN_FRAME_IDLE;
-  static constexpr auto BEGIN_MAIN_FRAME_SENT = ChromeCompositorStateMachine_MajorState_BeginMainFrameState_BEGIN_MAIN_FRAME_SENT;
-  static constexpr auto BEGIN_MAIN_FRAME_READY_TO_COMMIT = ChromeCompositorStateMachine_MajorState_BeginMainFrameState_BEGIN_MAIN_FRAME_READY_TO_COMMIT;
-  static constexpr auto BeginMainFrameState_MIN = ChromeCompositorStateMachine_MajorState_BeginMainFrameState_BEGIN_MAIN_FRAME_UNSPECIFIED;
-  static constexpr auto BeginMainFrameState_MAX = ChromeCompositorStateMachine_MajorState_BeginMainFrameState_BEGIN_MAIN_FRAME_READY_TO_COMMIT;
-  using LayerTreeFrameSinkState = ChromeCompositorStateMachine_MajorState_LayerTreeFrameSinkState;
-  static constexpr auto LAYER_TREE_FRAME_UNSPECIFIED = ChromeCompositorStateMachine_MajorState_LayerTreeFrameSinkState_LAYER_TREE_FRAME_UNSPECIFIED;
-  static constexpr auto LAYER_TREE_FRAME_NONE = ChromeCompositorStateMachine_MajorState_LayerTreeFrameSinkState_LAYER_TREE_FRAME_NONE;
-  static constexpr auto LAYER_TREE_FRAME_ACTIVE = ChromeCompositorStateMachine_MajorState_LayerTreeFrameSinkState_LAYER_TREE_FRAME_ACTIVE;
-  static constexpr auto LAYER_TREE_FRAME_CREATING = ChromeCompositorStateMachine_MajorState_LayerTreeFrameSinkState_LAYER_TREE_FRAME_CREATING;
-  static constexpr auto LAYER_TREE_FRAME_WAITING_FOR_FIRST_COMMIT = ChromeCompositorStateMachine_MajorState_LayerTreeFrameSinkState_LAYER_TREE_FRAME_WAITING_FOR_FIRST_COMMIT;
-  static constexpr auto LAYER_TREE_FRAME_WAITING_FOR_FIRST_ACTIVATION = ChromeCompositorStateMachine_MajorState_LayerTreeFrameSinkState_LAYER_TREE_FRAME_WAITING_FOR_FIRST_ACTIVATION;
-  static constexpr auto LayerTreeFrameSinkState_MIN = ChromeCompositorStateMachine_MajorState_LayerTreeFrameSinkState_LAYER_TREE_FRAME_UNSPECIFIED;
-  static constexpr auto LayerTreeFrameSinkState_MAX = ChromeCompositorStateMachine_MajorState_LayerTreeFrameSinkState_LAYER_TREE_FRAME_WAITING_FOR_FIRST_ACTIVATION;
-  using ForcedRedrawOnTimeoutState = ChromeCompositorStateMachine_MajorState_ForcedRedrawOnTimeoutState;
-  static constexpr auto FORCED_REDRAW_UNSPECIFIED = ChromeCompositorStateMachine_MajorState_ForcedRedrawOnTimeoutState_FORCED_REDRAW_UNSPECIFIED;
-  static constexpr auto FORCED_REDRAW_IDLE = ChromeCompositorStateMachine_MajorState_ForcedRedrawOnTimeoutState_FORCED_REDRAW_IDLE;
-  static constexpr auto FORCED_REDRAW_WAITING_FOR_COMMIT = ChromeCompositorStateMachine_MajorState_ForcedRedrawOnTimeoutState_FORCED_REDRAW_WAITING_FOR_COMMIT;
-  static constexpr auto FORCED_REDRAW_WAITING_FOR_ACTIVATION = ChromeCompositorStateMachine_MajorState_ForcedRedrawOnTimeoutState_FORCED_REDRAW_WAITING_FOR_ACTIVATION;
-  static constexpr auto FORCED_REDRAW_WAITING_FOR_DRAW = ChromeCompositorStateMachine_MajorState_ForcedRedrawOnTimeoutState_FORCED_REDRAW_WAITING_FOR_DRAW;
-  static constexpr auto ForcedRedrawOnTimeoutState_MIN = ChromeCompositorStateMachine_MajorState_ForcedRedrawOnTimeoutState_FORCED_REDRAW_UNSPECIFIED;
-  static constexpr auto ForcedRedrawOnTimeoutState_MAX = ChromeCompositorStateMachine_MajorState_ForcedRedrawOnTimeoutState_FORCED_REDRAW_WAITING_FOR_DRAW;
-  enum FieldNumbers {
-    kNextActionFieldNumber = 1,
-    kBeginImplFrameStateFieldNumber = 2,
-    kBeginMainFrameStateFieldNumber = 3,
-    kLayerTreeFrameSinkStateFieldNumber = 4,
-    kForcedRedrawStateFieldNumber = 5,
-  };
-
-  ChromeCompositorStateMachine_MajorState();
-  ~ChromeCompositorStateMachine_MajorState() override;
-  ChromeCompositorStateMachine_MajorState(ChromeCompositorStateMachine_MajorState&&) noexcept;
-  ChromeCompositorStateMachine_MajorState& operator=(ChromeCompositorStateMachine_MajorState&&);
-  ChromeCompositorStateMachine_MajorState(const ChromeCompositorStateMachine_MajorState&);
-  ChromeCompositorStateMachine_MajorState& operator=(const ChromeCompositorStateMachine_MajorState&);
-  bool operator==(const ChromeCompositorStateMachine_MajorState&) const;
-  bool operator!=(const ChromeCompositorStateMachine_MajorState& other) const { return !(*this == other); }
-
-  bool ParseFromArray(const void*, size_t) override;
-  std::string SerializeAsString() const override;
-  std::vector<uint8_t> SerializeAsArray() const override;
-  void Serialize(::protozero::Message*) const;
-
-  bool has_next_action() const { return _has_field_[1]; }
-  ChromeCompositorSchedulerAction next_action() const { return next_action_; }
-  void set_next_action(ChromeCompositorSchedulerAction value) { next_action_ = value; _has_field_.set(1); }
-
-  bool has_begin_impl_frame_state() const { return _has_field_[2]; }
-  ChromeCompositorStateMachine_MajorState_BeginImplFrameState begin_impl_frame_state() const { return begin_impl_frame_state_; }
-  void set_begin_impl_frame_state(ChromeCompositorStateMachine_MajorState_BeginImplFrameState value) { begin_impl_frame_state_ = value; _has_field_.set(2); }
-
-  bool has_begin_main_frame_state() const { return _has_field_[3]; }
-  ChromeCompositorStateMachine_MajorState_BeginMainFrameState begin_main_frame_state() const { return begin_main_frame_state_; }
-  void set_begin_main_frame_state(ChromeCompositorStateMachine_MajorState_BeginMainFrameState value) { begin_main_frame_state_ = value; _has_field_.set(3); }
-
-  bool has_layer_tree_frame_sink_state() const { return _has_field_[4]; }
-  ChromeCompositorStateMachine_MajorState_LayerTreeFrameSinkState layer_tree_frame_sink_state() const { return layer_tree_frame_sink_state_; }
-  void set_layer_tree_frame_sink_state(ChromeCompositorStateMachine_MajorState_LayerTreeFrameSinkState value) { layer_tree_frame_sink_state_ = value; _has_field_.set(4); }
-
-  bool has_forced_redraw_state() const { return _has_field_[5]; }
-  ChromeCompositorStateMachine_MajorState_ForcedRedrawOnTimeoutState forced_redraw_state() const { return forced_redraw_state_; }
-  void set_forced_redraw_state(ChromeCompositorStateMachine_MajorState_ForcedRedrawOnTimeoutState value) { forced_redraw_state_ = value; _has_field_.set(5); }
-
- private:
-  ChromeCompositorSchedulerAction next_action_{};
-  ChromeCompositorStateMachine_MajorState_BeginImplFrameState begin_impl_frame_state_{};
-  ChromeCompositorStateMachine_MajorState_BeginMainFrameState begin_main_frame_state_{};
-  ChromeCompositorStateMachine_MajorState_LayerTreeFrameSinkState layer_tree_frame_sink_state_{};
-  ChromeCompositorStateMachine_MajorState_ForcedRedrawOnTimeoutState forced_redraw_state_{};
-
-  // Allows to preserve unknown protobuf fields for compatibility
-  // with future versions of .proto files.
-  std::string unknown_fields_;
-
-  std::bitset<6> _has_field_{};
-};
-
-
-class PERFETTO_EXPORT ChromeCompositorSchedulerState : public ::protozero::CppMessageObj {
- public:
-  using BeginImplFrameDeadlineMode = ChromeCompositorSchedulerState_BeginImplFrameDeadlineMode;
-  static constexpr auto DEADLINE_MODE_UNSPECIFIED = ChromeCompositorSchedulerState_BeginImplFrameDeadlineMode_DEADLINE_MODE_UNSPECIFIED;
-  static constexpr auto DEADLINE_MODE_NONE = ChromeCompositorSchedulerState_BeginImplFrameDeadlineMode_DEADLINE_MODE_NONE;
-  static constexpr auto DEADLINE_MODE_IMMEDIATE = ChromeCompositorSchedulerState_BeginImplFrameDeadlineMode_DEADLINE_MODE_IMMEDIATE;
-  static constexpr auto DEADLINE_MODE_REGULAR = ChromeCompositorSchedulerState_BeginImplFrameDeadlineMode_DEADLINE_MODE_REGULAR;
-  static constexpr auto DEADLINE_MODE_LATE = ChromeCompositorSchedulerState_BeginImplFrameDeadlineMode_DEADLINE_MODE_LATE;
-  static constexpr auto DEADLINE_MODE_BLOCKED = ChromeCompositorSchedulerState_BeginImplFrameDeadlineMode_DEADLINE_MODE_BLOCKED;
-  static constexpr auto BeginImplFrameDeadlineMode_MIN = ChromeCompositorSchedulerState_BeginImplFrameDeadlineMode_DEADLINE_MODE_UNSPECIFIED;
-  static constexpr auto BeginImplFrameDeadlineMode_MAX = ChromeCompositorSchedulerState_BeginImplFrameDeadlineMode_DEADLINE_MODE_BLOCKED;
-  enum FieldNumbers {
-    kStateMachineFieldNumber = 1,
-    kObservingBeginFrameSourceFieldNumber = 2,
-    kBeginImplFrameDeadlineTaskFieldNumber = 3,
-    kPendingBeginFrameTaskFieldNumber = 4,
-    kSkippedLastFrameMissedExceededDeadlineFieldNumber = 5,
-    kSkippedLastFrameToReduceLatencyFieldNumber = 6,
-    kInsideActionFieldNumber = 7,
-    kDeadlineModeFieldNumber = 8,
-    kDeadlineUsFieldNumber = 9,
-    kDeadlineScheduledAtUsFieldNumber = 10,
-    kNowUsFieldNumber = 11,
-    kNowToDeadlineDeltaUsFieldNumber = 12,
-    kNowToDeadlineScheduledAtDeltaUsFieldNumber = 13,
-    kBeginImplFrameArgsFieldNumber = 14,
-    kBeginFrameObserverStateFieldNumber = 15,
-    kBeginFrameSourceStateFieldNumber = 16,
-    kCompositorTimingHistoryFieldNumber = 17,
-  };
-
-  ChromeCompositorSchedulerState();
-  ~ChromeCompositorSchedulerState() override;
-  ChromeCompositorSchedulerState(ChromeCompositorSchedulerState&&) noexcept;
-  ChromeCompositorSchedulerState& operator=(ChromeCompositorSchedulerState&&);
-  ChromeCompositorSchedulerState(const ChromeCompositorSchedulerState&);
-  ChromeCompositorSchedulerState& operator=(const ChromeCompositorSchedulerState&);
-  bool operator==(const ChromeCompositorSchedulerState&) const;
-  bool operator!=(const ChromeCompositorSchedulerState& other) const { return !(*this == other); }
-
-  bool ParseFromArray(const void*, size_t) override;
-  std::string SerializeAsString() const override;
-  std::vector<uint8_t> SerializeAsArray() const override;
-  void Serialize(::protozero::Message*) const;
-
-  bool has_state_machine() const { return _has_field_[1]; }
-  const ChromeCompositorStateMachine& state_machine() const { return *state_machine_; }
-  ChromeCompositorStateMachine* mutable_state_machine() { _has_field_.set(1); return state_machine_.get(); }
-
-  bool has_observing_begin_frame_source() const { return _has_field_[2]; }
-  bool observing_begin_frame_source() const { return observing_begin_frame_source_; }
-  void set_observing_begin_frame_source(bool value) { observing_begin_frame_source_ = value; _has_field_.set(2); }
-
-  bool has_begin_impl_frame_deadline_task() const { return _has_field_[3]; }
-  bool begin_impl_frame_deadline_task() const { return begin_impl_frame_deadline_task_; }
-  void set_begin_impl_frame_deadline_task(bool value) { begin_impl_frame_deadline_task_ = value; _has_field_.set(3); }
-
-  bool has_pending_begin_frame_task() const { return _has_field_[4]; }
-  bool pending_begin_frame_task() const { return pending_begin_frame_task_; }
-  void set_pending_begin_frame_task(bool value) { pending_begin_frame_task_ = value; _has_field_.set(4); }
-
-  bool has_skipped_last_frame_missed_exceeded_deadline() const { return _has_field_[5]; }
-  bool skipped_last_frame_missed_exceeded_deadline() const { return skipped_last_frame_missed_exceeded_deadline_; }
-  void set_skipped_last_frame_missed_exceeded_deadline(bool value) { skipped_last_frame_missed_exceeded_deadline_ = value; _has_field_.set(5); }
-
-  bool has_skipped_last_frame_to_reduce_latency() const { return _has_field_[6]; }
-  bool skipped_last_frame_to_reduce_latency() const { return skipped_last_frame_to_reduce_latency_; }
-  void set_skipped_last_frame_to_reduce_latency(bool value) { skipped_last_frame_to_reduce_latency_ = value; _has_field_.set(6); }
-
-  bool has_inside_action() const { return _has_field_[7]; }
-  ChromeCompositorSchedulerAction inside_action() const { return inside_action_; }
-  void set_inside_action(ChromeCompositorSchedulerAction value) { inside_action_ = value; _has_field_.set(7); }
-
-  bool has_deadline_mode() const { return _has_field_[8]; }
-  ChromeCompositorSchedulerState_BeginImplFrameDeadlineMode deadline_mode() const { return deadline_mode_; }
-  void set_deadline_mode(ChromeCompositorSchedulerState_BeginImplFrameDeadlineMode value) { deadline_mode_ = value; _has_field_.set(8); }
-
-  bool has_deadline_us() const { return _has_field_[9]; }
-  int64_t deadline_us() const { return deadline_us_; }
-  void set_deadline_us(int64_t value) { deadline_us_ = value; _has_field_.set(9); }
-
-  bool has_deadline_scheduled_at_us() const { return _has_field_[10]; }
-  int64_t deadline_scheduled_at_us() const { return deadline_scheduled_at_us_; }
-  void set_deadline_scheduled_at_us(int64_t value) { deadline_scheduled_at_us_ = value; _has_field_.set(10); }
-
-  bool has_now_us() const { return _has_field_[11]; }
-  int64_t now_us() const { return now_us_; }
-  void set_now_us(int64_t value) { now_us_ = value; _has_field_.set(11); }
-
-  bool has_now_to_deadline_delta_us() const { return _has_field_[12]; }
-  int64_t now_to_deadline_delta_us() const { return now_to_deadline_delta_us_; }
-  void set_now_to_deadline_delta_us(int64_t value) { now_to_deadline_delta_us_ = value; _has_field_.set(12); }
-
-  bool has_now_to_deadline_scheduled_at_delta_us() const { return _has_field_[13]; }
-  int64_t now_to_deadline_scheduled_at_delta_us() const { return now_to_deadline_scheduled_at_delta_us_; }
-  void set_now_to_deadline_scheduled_at_delta_us(int64_t value) { now_to_deadline_scheduled_at_delta_us_ = value; _has_field_.set(13); }
-
-  bool has_begin_impl_frame_args() const { return _has_field_[14]; }
-  const BeginImplFrameArgs& begin_impl_frame_args() const { return *begin_impl_frame_args_; }
-  BeginImplFrameArgs* mutable_begin_impl_frame_args() { _has_field_.set(14); return begin_impl_frame_args_.get(); }
-
-  bool has_begin_frame_observer_state() const { return _has_field_[15]; }
-  const BeginFrameObserverState& begin_frame_observer_state() const { return *begin_frame_observer_state_; }
-  BeginFrameObserverState* mutable_begin_frame_observer_state() { _has_field_.set(15); return begin_frame_observer_state_.get(); }
-
-  bool has_begin_frame_source_state() const { return _has_field_[16]; }
-  const BeginFrameSourceState& begin_frame_source_state() const { return *begin_frame_source_state_; }
-  BeginFrameSourceState* mutable_begin_frame_source_state() { _has_field_.set(16); return begin_frame_source_state_.get(); }
-
-  bool has_compositor_timing_history() const { return _has_field_[17]; }
-  const CompositorTimingHistory& compositor_timing_history() const { return *compositor_timing_history_; }
-  CompositorTimingHistory* mutable_compositor_timing_history() { _has_field_.set(17); return compositor_timing_history_.get(); }
-
- private:
-  ::protozero::CopyablePtr<ChromeCompositorStateMachine> state_machine_;
-  bool observing_begin_frame_source_{};
-  bool begin_impl_frame_deadline_task_{};
-  bool pending_begin_frame_task_{};
-  bool skipped_last_frame_missed_exceeded_deadline_{};
-  bool skipped_last_frame_to_reduce_latency_{};
-  ChromeCompositorSchedulerAction inside_action_{};
-  ChromeCompositorSchedulerState_BeginImplFrameDeadlineMode deadline_mode_{};
-  int64_t deadline_us_{};
-  int64_t deadline_scheduled_at_us_{};
-  int64_t now_us_{};
-  int64_t now_to_deadline_delta_us_{};
-  int64_t now_to_deadline_scheduled_at_delta_us_{};
-  ::protozero::CopyablePtr<BeginImplFrameArgs> begin_impl_frame_args_;
-  ::protozero::CopyablePtr<BeginFrameObserverState> begin_frame_observer_state_;
-  ::protozero::CopyablePtr<BeginFrameSourceState> begin_frame_source_state_;
-  ::protozero::CopyablePtr<CompositorTimingHistory> compositor_timing_history_;
-
-  // Allows to preserve unknown protobuf fields for compatibility
-  // with future versions of .proto files.
-  std::string unknown_fields_;
-
-  std::bitset<18> _has_field_{};
-};
-
-}  // namespace perfetto
-}  // namespace protos
-}  // namespace gen
-
-#endif  // PERFETTO_PROTOS_PROTOS_PERFETTO_TRACE_TRACK_EVENT_CHROME_COMPOSITOR_SCHEDULER_STATE_PROTO_CPP_H_
-// gen_amalgamated begin header: gen/protos/perfetto/trace/track_event/source_location.gen.h
-// DO NOT EDIT. Autogenerated by Perfetto cppgen_plugin
-#ifndef PERFETTO_PROTOS_PROTOS_PERFETTO_TRACE_TRACK_EVENT_SOURCE_LOCATION_PROTO_CPP_H_
-#define PERFETTO_PROTOS_PROTOS_PERFETTO_TRACE_TRACK_EVENT_SOURCE_LOCATION_PROTO_CPP_H_
-
-#include <stdint.h>
-#include <bitset>
-#include <vector>
-#include <string>
-#include <type_traits>
-
-// gen_amalgamated expanded: #include "perfetto/protozero/cpp_message_obj.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/copyable_ptr.h"
-// gen_amalgamated expanded: #include "perfetto/base/export.h"
-
-namespace perfetto {
-namespace protos {
-namespace gen {
-class SourceLocation;
-}  // namespace perfetto
-}  // namespace protos
-}  // namespace gen
-
-namespace protozero {
-class Message;
-}  // namespace protozero
-
-namespace perfetto {
-namespace protos {
-namespace gen {
-
-class PERFETTO_EXPORT SourceLocation : public ::protozero::CppMessageObj {
- public:
-  enum FieldNumbers {
-    kIidFieldNumber = 1,
-    kFileNameFieldNumber = 2,
-    kFunctionNameFieldNumber = 3,
-    kLineNumberFieldNumber = 4,
-  };
-
-  SourceLocation();
-  ~SourceLocation() override;
-  SourceLocation(SourceLocation&&) noexcept;
-  SourceLocation& operator=(SourceLocation&&);
-  SourceLocation(const SourceLocation&);
-  SourceLocation& operator=(const SourceLocation&);
-  bool operator==(const SourceLocation&) const;
-  bool operator!=(const SourceLocation& other) const { return !(*this == other); }
-
-  bool ParseFromArray(const void*, size_t) override;
-  std::string SerializeAsString() const override;
-  std::vector<uint8_t> SerializeAsArray() const override;
-  void Serialize(::protozero::Message*) const;
-
-  bool has_iid() const { return _has_field_[1]; }
-  uint64_t iid() const { return iid_; }
-  void set_iid(uint64_t value) { iid_ = value; _has_field_.set(1); }
-
-  bool has_file_name() const { return _has_field_[2]; }
-  const std::string& file_name() const { return file_name_; }
-  void set_file_name(const std::string& value) { file_name_ = value; _has_field_.set(2); }
-
-  bool has_function_name() const { return _has_field_[3]; }
-  const std::string& function_name() const { return function_name_; }
-  void set_function_name(const std::string& value) { function_name_ = value; _has_field_.set(3); }
-
-  bool has_line_number() const { return _has_field_[4]; }
-  uint32_t line_number() const { return line_number_; }
-  void set_line_number(uint32_t value) { line_number_ = value; _has_field_.set(4); }
-
- private:
-  uint64_t iid_{};
-  std::string file_name_{};
-  std::string function_name_{};
-  uint32_t line_number_{};
-
-  // Allows to preserve unknown protobuf fields for compatibility
-  // with future versions of .proto files.
-  std::string unknown_fields_;
-
-  std::bitset<5> _has_field_{};
-};
-
-}  // namespace perfetto
-}  // namespace protos
-}  // namespace gen
-
-#endif  // PERFETTO_PROTOS_PROTOS_PERFETTO_TRACE_TRACK_EVENT_SOURCE_LOCATION_PROTO_CPP_H_
-// gen_amalgamated expanded: #include "perfetto/protozero/message.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/packed_repeated_fields.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/proto_decoder.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/scattered_heap_buffer.h"
-// DO NOT EDIT. Autogenerated by Perfetto cppgen_plugin
-#if defined(__GNUC__) || defined(__clang__)
-#pragma GCC diagnostic push
-#pragma GCC diagnostic ignored "-Wfloat-equal"
-#endif
-// gen_amalgamated expanded: #include "protos/perfetto/trace/track_event/chrome_compositor_scheduler_state.gen.h"
-// gen_amalgamated expanded: #include "protos/perfetto/trace/track_event/source_location.gen.h"
-
-namespace perfetto {
-namespace protos {
-namespace gen {
-
-CompositorTimingHistory::CompositorTimingHistory() = default;
-CompositorTimingHistory::~CompositorTimingHistory() = default;
-CompositorTimingHistory::CompositorTimingHistory(const CompositorTimingHistory&) = default;
-CompositorTimingHistory& CompositorTimingHistory::operator=(const CompositorTimingHistory&) = default;
-CompositorTimingHistory::CompositorTimingHistory(CompositorTimingHistory&&) noexcept = default;
-CompositorTimingHistory& CompositorTimingHistory::operator=(CompositorTimingHistory&&) = default;
-
-bool CompositorTimingHistory::operator==(const CompositorTimingHistory& other) const {
-  return unknown_fields_ == other.unknown_fields_
-   && begin_main_frame_queue_critical_estimate_delta_us_ == other.begin_main_frame_queue_critical_estimate_delta_us_
-   && begin_main_frame_queue_not_critical_estimate_delta_us_ == other.begin_main_frame_queue_not_critical_estimate_delta_us_
-   && begin_main_frame_start_to_ready_to_commit_estimate_delta_us_ == other.begin_main_frame_start_to_ready_to_commit_estimate_delta_us_
-   && commit_to_ready_to_activate_estimate_delta_us_ == other.commit_to_ready_to_activate_estimate_delta_us_
-   && prepare_tiles_estimate_delta_us_ == other.prepare_tiles_estimate_delta_us_
-   && activate_estimate_delta_us_ == other.activate_estimate_delta_us_
-   && draw_estimate_delta_us_ == other.draw_estimate_delta_us_;
-}
-
-bool CompositorTimingHistory::ParseFromArray(const void* raw, size_t size) {
-  unknown_fields_.clear();
-  bool packed_error = false;
-
-  ::protozero::ProtoDecoder dec(raw, size);
-  for (auto field = dec.ReadField(); field.valid(); field = dec.ReadField()) {
-    if (field.id() < _has_field_.size()) {
-      _has_field_.set(field.id());
-    }
-    switch (field.id()) {
-      case 1 /* begin_main_frame_queue_critical_estimate_delta_us */:
-        field.get(&begin_main_frame_queue_critical_estimate_delta_us_);
-        break;
-      case 2 /* begin_main_frame_queue_not_critical_estimate_delta_us */:
-        field.get(&begin_main_frame_queue_not_critical_estimate_delta_us_);
-        break;
-      case 3 /* begin_main_frame_start_to_ready_to_commit_estimate_delta_us */:
-        field.get(&begin_main_frame_start_to_ready_to_commit_estimate_delta_us_);
-        break;
-      case 4 /* commit_to_ready_to_activate_estimate_delta_us */:
-        field.get(&commit_to_ready_to_activate_estimate_delta_us_);
-        break;
-      case 5 /* prepare_tiles_estimate_delta_us */:
-        field.get(&prepare_tiles_estimate_delta_us_);
-        break;
-      case 6 /* activate_estimate_delta_us */:
-        field.get(&activate_estimate_delta_us_);
-        break;
-      case 7 /* draw_estimate_delta_us */:
-        field.get(&draw_estimate_delta_us_);
-        break;
-      default:
-        field.SerializeAndAppendTo(&unknown_fields_);
-        break;
-    }
-  }
-  return !packed_error && !dec.bytes_left();
-}
-
-std::string CompositorTimingHistory::SerializeAsString() const {
-  ::protozero::HeapBuffered<::protozero::Message> msg;
-  Serialize(msg.get());
-  return msg.SerializeAsString();
-}
-
-std::vector<uint8_t> CompositorTimingHistory::SerializeAsArray() const {
-  ::protozero::HeapBuffered<::protozero::Message> msg;
-  Serialize(msg.get());
-  return msg.SerializeAsArray();
-}
-
-void CompositorTimingHistory::Serialize(::protozero::Message* msg) const {
-  // Field 1: begin_main_frame_queue_critical_estimate_delta_us
-  if (_has_field_[1]) {
-    msg->AppendVarInt(1, begin_main_frame_queue_critical_estimate_delta_us_);
-  }
-
-  // Field 2: begin_main_frame_queue_not_critical_estimate_delta_us
-  if (_has_field_[2]) {
-    msg->AppendVarInt(2, begin_main_frame_queue_not_critical_estimate_delta_us_);
-  }
-
-  // Field 3: begin_main_frame_start_to_ready_to_commit_estimate_delta_us
-  if (_has_field_[3]) {
-    msg->AppendVarInt(3, begin_main_frame_start_to_ready_to_commit_estimate_delta_us_);
-  }
-
-  // Field 4: commit_to_ready_to_activate_estimate_delta_us
-  if (_has_field_[4]) {
-    msg->AppendVarInt(4, commit_to_ready_to_activate_estimate_delta_us_);
-  }
-
-  // Field 5: prepare_tiles_estimate_delta_us
-  if (_has_field_[5]) {
-    msg->AppendVarInt(5, prepare_tiles_estimate_delta_us_);
-  }
-
-  // Field 6: activate_estimate_delta_us
-  if (_has_field_[6]) {
-    msg->AppendVarInt(6, activate_estimate_delta_us_);
-  }
-
-  // Field 7: draw_estimate_delta_us
-  if (_has_field_[7]) {
-    msg->AppendVarInt(7, draw_estimate_delta_us_);
-  }
-
-  msg->AppendRawProtoBytes(unknown_fields_.data(), unknown_fields_.size());
-}
-
-
-BeginFrameSourceState::BeginFrameSourceState() = default;
-BeginFrameSourceState::~BeginFrameSourceState() = default;
-BeginFrameSourceState::BeginFrameSourceState(const BeginFrameSourceState&) = default;
-BeginFrameSourceState& BeginFrameSourceState::operator=(const BeginFrameSourceState&) = default;
-BeginFrameSourceState::BeginFrameSourceState(BeginFrameSourceState&&) noexcept = default;
-BeginFrameSourceState& BeginFrameSourceState::operator=(BeginFrameSourceState&&) = default;
-
-bool BeginFrameSourceState::operator==(const BeginFrameSourceState& other) const {
-  return unknown_fields_ == other.unknown_fields_
-   && source_id_ == other.source_id_
-   && paused_ == other.paused_
-   && num_observers_ == other.num_observers_
-   && last_begin_frame_args_ == other.last_begin_frame_args_;
-}
-
-bool BeginFrameSourceState::ParseFromArray(const void* raw, size_t size) {
-  unknown_fields_.clear();
-  bool packed_error = false;
-
-  ::protozero::ProtoDecoder dec(raw, size);
-  for (auto field = dec.ReadField(); field.valid(); field = dec.ReadField()) {
-    if (field.id() < _has_field_.size()) {
-      _has_field_.set(field.id());
-    }
-    switch (field.id()) {
-      case 1 /* source_id */:
-        field.get(&source_id_);
-        break;
-      case 2 /* paused */:
-        field.get(&paused_);
-        break;
-      case 3 /* num_observers */:
-        field.get(&num_observers_);
-        break;
-      case 4 /* last_begin_frame_args */:
-        (*last_begin_frame_args_).ParseFromArray(field.data(), field.size());
-        break;
-      default:
-        field.SerializeAndAppendTo(&unknown_fields_);
-        break;
-    }
-  }
-  return !packed_error && !dec.bytes_left();
-}
-
-std::string BeginFrameSourceState::SerializeAsString() const {
-  ::protozero::HeapBuffered<::protozero::Message> msg;
-  Serialize(msg.get());
-  return msg.SerializeAsString();
-}
-
-std::vector<uint8_t> BeginFrameSourceState::SerializeAsArray() const {
-  ::protozero::HeapBuffered<::protozero::Message> msg;
-  Serialize(msg.get());
-  return msg.SerializeAsArray();
-}
-
-void BeginFrameSourceState::Serialize(::protozero::Message* msg) const {
-  // Field 1: source_id
-  if (_has_field_[1]) {
-    msg->AppendVarInt(1, source_id_);
-  }
-
-  // Field 2: paused
-  if (_has_field_[2]) {
-    msg->AppendTinyVarInt(2, paused_);
-  }
-
-  // Field 3: num_observers
-  if (_has_field_[3]) {
-    msg->AppendVarInt(3, num_observers_);
-  }
-
-  // Field 4: last_begin_frame_args
-  if (_has_field_[4]) {
-    (*last_begin_frame_args_).Serialize(msg->BeginNestedMessage<::protozero::Message>(4));
-  }
-
-  msg->AppendRawProtoBytes(unknown_fields_.data(), unknown_fields_.size());
-}
-
-
-BeginFrameArgs::BeginFrameArgs() = default;
-BeginFrameArgs::~BeginFrameArgs() = default;
-BeginFrameArgs::BeginFrameArgs(const BeginFrameArgs&) = default;
-BeginFrameArgs& BeginFrameArgs::operator=(const BeginFrameArgs&) = default;
-BeginFrameArgs::BeginFrameArgs(BeginFrameArgs&&) noexcept = default;
-BeginFrameArgs& BeginFrameArgs::operator=(BeginFrameArgs&&) = default;
-
-bool BeginFrameArgs::operator==(const BeginFrameArgs& other) const {
-  return unknown_fields_ == other.unknown_fields_
-   && type_ == other.type_
-   && source_id_ == other.source_id_
-   && sequence_number_ == other.sequence_number_
-   && frame_time_us_ == other.frame_time_us_
-   && deadline_us_ == other.deadline_us_
-   && interval_delta_us_ == other.interval_delta_us_
-   && on_critical_path_ == other.on_critical_path_
-   && animate_only_ == other.animate_only_
-   && source_location_iid_ == other.source_location_iid_
-   && source_location_ == other.source_location_;
-}
-
-bool BeginFrameArgs::ParseFromArray(const void* raw, size_t size) {
-  unknown_fields_.clear();
-  bool packed_error = false;
-
-  ::protozero::ProtoDecoder dec(raw, size);
-  for (auto field = dec.ReadField(); field.valid(); field = dec.ReadField()) {
-    if (field.id() < _has_field_.size()) {
-      _has_field_.set(field.id());
-    }
-    switch (field.id()) {
-      case 1 /* type */:
-        field.get(&type_);
-        break;
-      case 2 /* source_id */:
-        field.get(&source_id_);
-        break;
-      case 3 /* sequence_number */:
-        field.get(&sequence_number_);
-        break;
-      case 4 /* frame_time_us */:
-        field.get(&frame_time_us_);
-        break;
-      case 5 /* deadline_us */:
-        field.get(&deadline_us_);
-        break;
-      case 6 /* interval_delta_us */:
-        field.get(&interval_delta_us_);
-        break;
-      case 7 /* on_critical_path */:
-        field.get(&on_critical_path_);
-        break;
-      case 8 /* animate_only */:
-        field.get(&animate_only_);
-        break;
-      case 9 /* source_location_iid */:
-        field.get(&source_location_iid_);
-        break;
-      case 10 /* source_location */:
-        (*source_location_).ParseFromArray(field.data(), field.size());
-        break;
-      default:
-        field.SerializeAndAppendTo(&unknown_fields_);
-        break;
-    }
-  }
-  return !packed_error && !dec.bytes_left();
-}
-
-std::string BeginFrameArgs::SerializeAsString() const {
-  ::protozero::HeapBuffered<::protozero::Message> msg;
-  Serialize(msg.get());
-  return msg.SerializeAsString();
-}
-
-std::vector<uint8_t> BeginFrameArgs::SerializeAsArray() const {
-  ::protozero::HeapBuffered<::protozero::Message> msg;
-  Serialize(msg.get());
-  return msg.SerializeAsArray();
-}
-
-void BeginFrameArgs::Serialize(::protozero::Message* msg) const {
-  // Field 1: type
-  if (_has_field_[1]) {
-    msg->AppendVarInt(1, type_);
-  }
-
-  // Field 2: source_id
-  if (_has_field_[2]) {
-    msg->AppendVarInt(2, source_id_);
-  }
-
-  // Field 3: sequence_number
-  if (_has_field_[3]) {
-    msg->AppendVarInt(3, sequence_number_);
-  }
-
-  // Field 4: frame_time_us
-  if (_has_field_[4]) {
-    msg->AppendVarInt(4, frame_time_us_);
-  }
-
-  // Field 5: deadline_us
-  if (_has_field_[5]) {
-    msg->AppendVarInt(5, deadline_us_);
-  }
-
-  // Field 6: interval_delta_us
-  if (_has_field_[6]) {
-    msg->AppendVarInt(6, interval_delta_us_);
-  }
-
-  // Field 7: on_critical_path
-  if (_has_field_[7]) {
-    msg->AppendTinyVarInt(7, on_critical_path_);
-  }
-
-  // Field 8: animate_only
-  if (_has_field_[8]) {
-    msg->AppendTinyVarInt(8, animate_only_);
-  }
-
-  // Field 9: source_location_iid
-  if (_has_field_[9]) {
-    msg->AppendVarInt(9, source_location_iid_);
-  }
-
-  // Field 10: source_location
-  if (_has_field_[10]) {
-    (*source_location_).Serialize(msg->BeginNestedMessage<::protozero::Message>(10));
-  }
-
-  msg->AppendRawProtoBytes(unknown_fields_.data(), unknown_fields_.size());
-}
-
-
-BeginFrameObserverState::BeginFrameObserverState() = default;
-BeginFrameObserverState::~BeginFrameObserverState() = default;
-BeginFrameObserverState::BeginFrameObserverState(const BeginFrameObserverState&) = default;
-BeginFrameObserverState& BeginFrameObserverState::operator=(const BeginFrameObserverState&) = default;
-BeginFrameObserverState::BeginFrameObserverState(BeginFrameObserverState&&) noexcept = default;
-BeginFrameObserverState& BeginFrameObserverState::operator=(BeginFrameObserverState&&) = default;
-
-bool BeginFrameObserverState::operator==(const BeginFrameObserverState& other) const {
-  return unknown_fields_ == other.unknown_fields_
-   && dropped_begin_frame_args_ == other.dropped_begin_frame_args_
-   && last_begin_frame_args_ == other.last_begin_frame_args_;
-}
-
-bool BeginFrameObserverState::ParseFromArray(const void* raw, size_t size) {
-  unknown_fields_.clear();
-  bool packed_error = false;
-
-  ::protozero::ProtoDecoder dec(raw, size);
-  for (auto field = dec.ReadField(); field.valid(); field = dec.ReadField()) {
-    if (field.id() < _has_field_.size()) {
-      _has_field_.set(field.id());
-    }
-    switch (field.id()) {
-      case 1 /* dropped_begin_frame_args */:
-        field.get(&dropped_begin_frame_args_);
-        break;
-      case 2 /* last_begin_frame_args */:
-        (*last_begin_frame_args_).ParseFromArray(field.data(), field.size());
-        break;
-      default:
-        field.SerializeAndAppendTo(&unknown_fields_);
-        break;
-    }
-  }
-  return !packed_error && !dec.bytes_left();
-}
-
-std::string BeginFrameObserverState::SerializeAsString() const {
-  ::protozero::HeapBuffered<::protozero::Message> msg;
-  Serialize(msg.get());
-  return msg.SerializeAsString();
-}
-
-std::vector<uint8_t> BeginFrameObserverState::SerializeAsArray() const {
-  ::protozero::HeapBuffered<::protozero::Message> msg;
-  Serialize(msg.get());
-  return msg.SerializeAsArray();
-}
-
-void BeginFrameObserverState::Serialize(::protozero::Message* msg) const {
-  // Field 1: dropped_begin_frame_args
-  if (_has_field_[1]) {
-    msg->AppendVarInt(1, dropped_begin_frame_args_);
-  }
-
-  // Field 2: last_begin_frame_args
-  if (_has_field_[2]) {
-    (*last_begin_frame_args_).Serialize(msg->BeginNestedMessage<::protozero::Message>(2));
-  }
-
-  msg->AppendRawProtoBytes(unknown_fields_.data(), unknown_fields_.size());
-}
-
-
-BeginImplFrameArgs::BeginImplFrameArgs() = default;
-BeginImplFrameArgs::~BeginImplFrameArgs() = default;
-BeginImplFrameArgs::BeginImplFrameArgs(const BeginImplFrameArgs&) = default;
-BeginImplFrameArgs& BeginImplFrameArgs::operator=(const BeginImplFrameArgs&) = default;
-BeginImplFrameArgs::BeginImplFrameArgs(BeginImplFrameArgs&&) noexcept = default;
-BeginImplFrameArgs& BeginImplFrameArgs::operator=(BeginImplFrameArgs&&) = default;
-
-bool BeginImplFrameArgs::operator==(const BeginImplFrameArgs& other) const {
-  return unknown_fields_ == other.unknown_fields_
-   && updated_at_us_ == other.updated_at_us_
-   && finished_at_us_ == other.finished_at_us_
-   && state_ == other.state_
-   && current_args_ == other.current_args_
-   && last_args_ == other.last_args_
-   && timestamps_in_us_ == other.timestamps_in_us_;
-}
-
-bool BeginImplFrameArgs::ParseFromArray(const void* raw, size_t size) {
-  unknown_fields_.clear();
-  bool packed_error = false;
-
-  ::protozero::ProtoDecoder dec(raw, size);
-  for (auto field = dec.ReadField(); field.valid(); field = dec.ReadField()) {
-    if (field.id() < _has_field_.size()) {
-      _has_field_.set(field.id());
-    }
-    switch (field.id()) {
-      case 1 /* updated_at_us */:
-        field.get(&updated_at_us_);
-        break;
-      case 2 /* finished_at_us */:
-        field.get(&finished_at_us_);
-        break;
-      case 3 /* state */:
-        field.get(&state_);
-        break;
-      case 4 /* current_args */:
-        (*current_args_).ParseFromArray(field.data(), field.size());
-        break;
-      case 5 /* last_args */:
-        (*last_args_).ParseFromArray(field.data(), field.size());
-        break;
-      case 6 /* timestamps_in_us */:
-        (*timestamps_in_us_).ParseFromArray(field.data(), field.size());
-        break;
-      default:
-        field.SerializeAndAppendTo(&unknown_fields_);
-        break;
-    }
-  }
-  return !packed_error && !dec.bytes_left();
-}
-
-std::string BeginImplFrameArgs::SerializeAsString() const {
-  ::protozero::HeapBuffered<::protozero::Message> msg;
-  Serialize(msg.get());
-  return msg.SerializeAsString();
-}
-
-std::vector<uint8_t> BeginImplFrameArgs::SerializeAsArray() const {
-  ::protozero::HeapBuffered<::protozero::Message> msg;
-  Serialize(msg.get());
-  return msg.SerializeAsArray();
-}
-
-void BeginImplFrameArgs::Serialize(::protozero::Message* msg) const {
-  // Field 1: updated_at_us
-  if (_has_field_[1]) {
-    msg->AppendVarInt(1, updated_at_us_);
-  }
-
-  // Field 2: finished_at_us
-  if (_has_field_[2]) {
-    msg->AppendVarInt(2, finished_at_us_);
-  }
-
-  // Field 3: state
-  if (_has_field_[3]) {
-    msg->AppendVarInt(3, state_);
-  }
-
-  // Field 4: current_args
-  if (_has_field_[4]) {
-    (*current_args_).Serialize(msg->BeginNestedMessage<::protozero::Message>(4));
-  }
-
-  // Field 5: last_args
-  if (_has_field_[5]) {
-    (*last_args_).Serialize(msg->BeginNestedMessage<::protozero::Message>(5));
-  }
-
-  // Field 6: timestamps_in_us
-  if (_has_field_[6]) {
-    (*timestamps_in_us_).Serialize(msg->BeginNestedMessage<::protozero::Message>(6));
-  }
-
-  msg->AppendRawProtoBytes(unknown_fields_.data(), unknown_fields_.size());
-}
-
-
-BeginImplFrameArgs_TimestampsInUs::BeginImplFrameArgs_TimestampsInUs() = default;
-BeginImplFrameArgs_TimestampsInUs::~BeginImplFrameArgs_TimestampsInUs() = default;
-BeginImplFrameArgs_TimestampsInUs::BeginImplFrameArgs_TimestampsInUs(const BeginImplFrameArgs_TimestampsInUs&) = default;
-BeginImplFrameArgs_TimestampsInUs& BeginImplFrameArgs_TimestampsInUs::operator=(const BeginImplFrameArgs_TimestampsInUs&) = default;
-BeginImplFrameArgs_TimestampsInUs::BeginImplFrameArgs_TimestampsInUs(BeginImplFrameArgs_TimestampsInUs&&) noexcept = default;
-BeginImplFrameArgs_TimestampsInUs& BeginImplFrameArgs_TimestampsInUs::operator=(BeginImplFrameArgs_TimestampsInUs&&) = default;
-
-bool BeginImplFrameArgs_TimestampsInUs::operator==(const BeginImplFrameArgs_TimestampsInUs& other) const {
-  return unknown_fields_ == other.unknown_fields_
-   && interval_delta_ == other.interval_delta_
-   && now_to_deadline_delta_ == other.now_to_deadline_delta_
-   && frame_time_to_now_delta_ == other.frame_time_to_now_delta_
-   && frame_time_to_deadline_delta_ == other.frame_time_to_deadline_delta_
-   && now_ == other.now_
-   && frame_time_ == other.frame_time_
-   && deadline_ == other.deadline_;
-}
-
-bool BeginImplFrameArgs_TimestampsInUs::ParseFromArray(const void* raw, size_t size) {
-  unknown_fields_.clear();
-  bool packed_error = false;
-
-  ::protozero::ProtoDecoder dec(raw, size);
-  for (auto field = dec.ReadField(); field.valid(); field = dec.ReadField()) {
-    if (field.id() < _has_field_.size()) {
-      _has_field_.set(field.id());
-    }
-    switch (field.id()) {
-      case 1 /* interval_delta */:
-        field.get(&interval_delta_);
-        break;
-      case 2 /* now_to_deadline_delta */:
-        field.get(&now_to_deadline_delta_);
-        break;
-      case 3 /* frame_time_to_now_delta */:
-        field.get(&frame_time_to_now_delta_);
-        break;
-      case 4 /* frame_time_to_deadline_delta */:
-        field.get(&frame_time_to_deadline_delta_);
-        break;
-      case 5 /* now */:
-        field.get(&now_);
-        break;
-      case 6 /* frame_time */:
-        field.get(&frame_time_);
-        break;
-      case 7 /* deadline */:
-        field.get(&deadline_);
-        break;
-      default:
-        field.SerializeAndAppendTo(&unknown_fields_);
-        break;
-    }
-  }
-  return !packed_error && !dec.bytes_left();
-}
-
-std::string BeginImplFrameArgs_TimestampsInUs::SerializeAsString() const {
-  ::protozero::HeapBuffered<::protozero::Message> msg;
-  Serialize(msg.get());
-  return msg.SerializeAsString();
-}
-
-std::vector<uint8_t> BeginImplFrameArgs_TimestampsInUs::SerializeAsArray() const {
-  ::protozero::HeapBuffered<::protozero::Message> msg;
-  Serialize(msg.get());
-  return msg.SerializeAsArray();
-}
-
-void BeginImplFrameArgs_TimestampsInUs::Serialize(::protozero::Message* msg) const {
-  // Field 1: interval_delta
-  if (_has_field_[1]) {
-    msg->AppendVarInt(1, interval_delta_);
-  }
-
-  // Field 2: now_to_deadline_delta
-  if (_has_field_[2]) {
-    msg->AppendVarInt(2, now_to_deadline_delta_);
-  }
-
-  // Field 3: frame_time_to_now_delta
-  if (_has_field_[3]) {
-    msg->AppendVarInt(3, frame_time_to_now_delta_);
-  }
-
-  // Field 4: frame_time_to_deadline_delta
-  if (_has_field_[4]) {
-    msg->AppendVarInt(4, frame_time_to_deadline_delta_);
-  }
-
-  // Field 5: now
-  if (_has_field_[5]) {
-    msg->AppendVarInt(5, now_);
-  }
-
-  // Field 6: frame_time
-  if (_has_field_[6]) {
-    msg->AppendVarInt(6, frame_time_);
-  }
-
-  // Field 7: deadline
-  if (_has_field_[7]) {
-    msg->AppendVarInt(7, deadline_);
-  }
-
-  msg->AppendRawProtoBytes(unknown_fields_.data(), unknown_fields_.size());
-}
-
-
-ChromeCompositorStateMachine::ChromeCompositorStateMachine() = default;
-ChromeCompositorStateMachine::~ChromeCompositorStateMachine() = default;
-ChromeCompositorStateMachine::ChromeCompositorStateMachine(const ChromeCompositorStateMachine&) = default;
-ChromeCompositorStateMachine& ChromeCompositorStateMachine::operator=(const ChromeCompositorStateMachine&) = default;
-ChromeCompositorStateMachine::ChromeCompositorStateMachine(ChromeCompositorStateMachine&&) noexcept = default;
-ChromeCompositorStateMachine& ChromeCompositorStateMachine::operator=(ChromeCompositorStateMachine&&) = default;
-
-bool ChromeCompositorStateMachine::operator==(const ChromeCompositorStateMachine& other) const {
-  return unknown_fields_ == other.unknown_fields_
-   && major_state_ == other.major_state_
-   && minor_state_ == other.minor_state_;
-}
-
-bool ChromeCompositorStateMachine::ParseFromArray(const void* raw, size_t size) {
-  unknown_fields_.clear();
-  bool packed_error = false;
-
-  ::protozero::ProtoDecoder dec(raw, size);
-  for (auto field = dec.ReadField(); field.valid(); field = dec.ReadField()) {
-    if (field.id() < _has_field_.size()) {
-      _has_field_.set(field.id());
-    }
-    switch (field.id()) {
-      case 1 /* major_state */:
-        (*major_state_).ParseFromArray(field.data(), field.size());
-        break;
-      case 2 /* minor_state */:
-        (*minor_state_).ParseFromArray(field.data(), field.size());
-        break;
-      default:
-        field.SerializeAndAppendTo(&unknown_fields_);
-        break;
-    }
-  }
-  return !packed_error && !dec.bytes_left();
-}
-
-std::string ChromeCompositorStateMachine::SerializeAsString() const {
-  ::protozero::HeapBuffered<::protozero::Message> msg;
-  Serialize(msg.get());
-  return msg.SerializeAsString();
-}
-
-std::vector<uint8_t> ChromeCompositorStateMachine::SerializeAsArray() const {
-  ::protozero::HeapBuffered<::protozero::Message> msg;
-  Serialize(msg.get());
-  return msg.SerializeAsArray();
-}
-
-void ChromeCompositorStateMachine::Serialize(::protozero::Message* msg) const {
-  // Field 1: major_state
-  if (_has_field_[1]) {
-    (*major_state_).Serialize(msg->BeginNestedMessage<::protozero::Message>(1));
-  }
-
-  // Field 2: minor_state
-  if (_has_field_[2]) {
-    (*minor_state_).Serialize(msg->BeginNestedMessage<::protozero::Message>(2));
-  }
-
-  msg->AppendRawProtoBytes(unknown_fields_.data(), unknown_fields_.size());
-}
-
-
-ChromeCompositorStateMachine_MinorState::ChromeCompositorStateMachine_MinorState() = default;
-ChromeCompositorStateMachine_MinorState::~ChromeCompositorStateMachine_MinorState() = default;
-ChromeCompositorStateMachine_MinorState::ChromeCompositorStateMachine_MinorState(const ChromeCompositorStateMachine_MinorState&) = default;
-ChromeCompositorStateMachine_MinorState& ChromeCompositorStateMachine_MinorState::operator=(const ChromeCompositorStateMachine_MinorState&) = default;
-ChromeCompositorStateMachine_MinorState::ChromeCompositorStateMachine_MinorState(ChromeCompositorStateMachine_MinorState&&) noexcept = default;
-ChromeCompositorStateMachine_MinorState& ChromeCompositorStateMachine_MinorState::operator=(ChromeCompositorStateMachine_MinorState&&) = default;
-
-bool ChromeCompositorStateMachine_MinorState::operator==(const ChromeCompositorStateMachine_MinorState& other) const {
-  return unknown_fields_ == other.unknown_fields_
-   && commit_count_ == other.commit_count_
-   && current_frame_number_ == other.current_frame_number_
-   && last_frame_number_submit_performed_ == other.last_frame_number_submit_performed_
-   && last_frame_number_draw_performed_ == other.last_frame_number_draw_performed_
-   && last_frame_number_begin_main_frame_sent_ == other.last_frame_number_begin_main_frame_sent_
-   && did_draw_ == other.did_draw_
-   && did_send_begin_main_frame_for_current_frame_ == other.did_send_begin_main_frame_for_current_frame_
-   && did_notify_begin_main_frame_not_expected_until_ == other.did_notify_begin_main_frame_not_expected_until_
-   && did_notify_begin_main_frame_not_expected_soon_ == other.did_notify_begin_main_frame_not_expected_soon_
-   && wants_begin_main_frame_not_expected_ == other.wants_begin_main_frame_not_expected_
-   && did_commit_during_frame_ == other.did_commit_during_frame_
-   && did_invalidate_layer_tree_frame_sink_ == other.did_invalidate_layer_tree_frame_sink_
-   && did_perform_impl_side_invalidaion_ == other.did_perform_impl_side_invalidaion_
-   && did_prepare_tiles_ == other.did_prepare_tiles_
-   && consecutive_checkerboard_animations_ == other.consecutive_checkerboard_animations_
-   && pending_submit_frames_ == other.pending_submit_frames_
-   && submit_frames_with_current_layer_tree_frame_sink_ == other.submit_frames_with_current_layer_tree_frame_sink_
-   && needs_redraw_ == other.needs_redraw_
-   && needs_prepare_tiles_ == other.needs_prepare_tiles_
-   && needs_begin_main_frame_ == other.needs_begin_main_frame_
-   && needs_one_begin_impl_frame_ == other.needs_one_begin_impl_frame_
-   && visible_ == other.visible_
-   && begin_frame_source_paused_ == other.begin_frame_source_paused_
-   && can_draw_ == other.can_draw_
-   && resourceless_draw_ == other.resourceless_draw_
-   && has_pending_tree_ == other.has_pending_tree_
-   && pending_tree_is_ready_for_activation_ == other.pending_tree_is_ready_for_activation_
-   && active_tree_needs_first_draw_ == other.active_tree_needs_first_draw_
-   && active_tree_is_ready_to_draw_ == other.active_tree_is_ready_to_draw_
-   && did_create_and_initialize_first_layer_tree_frame_sink_ == other.did_create_and_initialize_first_layer_tree_frame_sink_
-   && tree_priority_ == other.tree_priority_
-   && scroll_handler_state_ == other.scroll_handler_state_
-   && critical_begin_main_frame_to_activate_is_fast_ == other.critical_begin_main_frame_to_activate_is_fast_
-   && main_thread_missed_last_deadline_ == other.main_thread_missed_last_deadline_
-   && skip_next_begin_main_frame_to_reduce_latency_ == other.skip_next_begin_main_frame_to_reduce_latency_
-   && video_needs_begin_frames_ == other.video_needs_begin_frames_
-   && defer_begin_main_frame_ == other.defer_begin_main_frame_
-   && last_commit_had_no_updates_ == other.last_commit_had_no_updates_
-   && did_draw_in_last_frame_ == other.did_draw_in_last_frame_
-   && did_submit_in_last_frame_ == other.did_submit_in_last_frame_
-   && needs_impl_side_invalidation_ == other.needs_impl_side_invalidation_
-   && current_pending_tree_is_impl_side_ == other.current_pending_tree_is_impl_side_
-   && previous_pending_tree_was_impl_side_ == other.previous_pending_tree_was_impl_side_
-   && processing_animation_worklets_for_active_tree_ == other.processing_animation_worklets_for_active_tree_
-   && processing_animation_worklets_for_pending_tree_ == other.processing_animation_worklets_for_pending_tree_
-   && processing_paint_worklets_for_pending_tree_ == other.processing_paint_worklets_for_pending_tree_;
-}
-
-bool ChromeCompositorStateMachine_MinorState::ParseFromArray(const void* raw, size_t size) {
-  unknown_fields_.clear();
-  bool packed_error = false;
-
-  ::protozero::ProtoDecoder dec(raw, size);
-  for (auto field = dec.ReadField(); field.valid(); field = dec.ReadField()) {
-    if (field.id() < _has_field_.size()) {
-      _has_field_.set(field.id());
-    }
-    switch (field.id()) {
-      case 1 /* commit_count */:
-        field.get(&commit_count_);
-        break;
-      case 2 /* current_frame_number */:
-        field.get(&current_frame_number_);
-        break;
-      case 3 /* last_frame_number_submit_performed */:
-        field.get(&last_frame_number_submit_performed_);
-        break;
-      case 4 /* last_frame_number_draw_performed */:
-        field.get(&last_frame_number_draw_performed_);
-        break;
-      case 5 /* last_frame_number_begin_main_frame_sent */:
-        field.get(&last_frame_number_begin_main_frame_sent_);
-        break;
-      case 6 /* did_draw */:
-        field.get(&did_draw_);
-        break;
-      case 7 /* did_send_begin_main_frame_for_current_frame */:
-        field.get(&did_send_begin_main_frame_for_current_frame_);
-        break;
-      case 8 /* did_notify_begin_main_frame_not_expected_until */:
-        field.get(&did_notify_begin_main_frame_not_expected_until_);
-        break;
-      case 9 /* did_notify_begin_main_frame_not_expected_soon */:
-        field.get(&did_notify_begin_main_frame_not_expected_soon_);
-        break;
-      case 10 /* wants_begin_main_frame_not_expected */:
-        field.get(&wants_begin_main_frame_not_expected_);
-        break;
-      case 11 /* did_commit_during_frame */:
-        field.get(&did_commit_during_frame_);
-        break;
-      case 12 /* did_invalidate_layer_tree_frame_sink */:
-        field.get(&did_invalidate_layer_tree_frame_sink_);
-        break;
-      case 13 /* did_perform_impl_side_invalidaion */:
-        field.get(&did_perform_impl_side_invalidaion_);
-        break;
-      case 14 /* did_prepare_tiles */:
-        field.get(&did_prepare_tiles_);
-        break;
-      case 15 /* consecutive_checkerboard_animations */:
-        field.get(&consecutive_checkerboard_animations_);
-        break;
-      case 16 /* pending_submit_frames */:
-        field.get(&pending_submit_frames_);
-        break;
-      case 17 /* submit_frames_with_current_layer_tree_frame_sink */:
-        field.get(&submit_frames_with_current_layer_tree_frame_sink_);
-        break;
-      case 18 /* needs_redraw */:
-        field.get(&needs_redraw_);
-        break;
-      case 19 /* needs_prepare_tiles */:
-        field.get(&needs_prepare_tiles_);
-        break;
-      case 20 /* needs_begin_main_frame */:
-        field.get(&needs_begin_main_frame_);
-        break;
-      case 21 /* needs_one_begin_impl_frame */:
-        field.get(&needs_one_begin_impl_frame_);
-        break;
-      case 22 /* visible */:
-        field.get(&visible_);
-        break;
-      case 23 /* begin_frame_source_paused */:
-        field.get(&begin_frame_source_paused_);
-        break;
-      case 24 /* can_draw */:
-        field.get(&can_draw_);
-        break;
-      case 25 /* resourceless_draw */:
-        field.get(&resourceless_draw_);
-        break;
-      case 26 /* has_pending_tree */:
-        field.get(&has_pending_tree_);
-        break;
-      case 27 /* pending_tree_is_ready_for_activation */:
-        field.get(&pending_tree_is_ready_for_activation_);
-        break;
-      case 28 /* active_tree_needs_first_draw */:
-        field.get(&active_tree_needs_first_draw_);
-        break;
-      case 29 /* active_tree_is_ready_to_draw */:
-        field.get(&active_tree_is_ready_to_draw_);
-        break;
-      case 30 /* did_create_and_initialize_first_layer_tree_frame_sink */:
-        field.get(&did_create_and_initialize_first_layer_tree_frame_sink_);
-        break;
-      case 31 /* tree_priority */:
-        field.get(&tree_priority_);
-        break;
-      case 32 /* scroll_handler_state */:
-        field.get(&scroll_handler_state_);
-        break;
-      case 33 /* critical_begin_main_frame_to_activate_is_fast */:
-        field.get(&critical_begin_main_frame_to_activate_is_fast_);
-        break;
-      case 34 /* main_thread_missed_last_deadline */:
-        field.get(&main_thread_missed_last_deadline_);
-        break;
-      case 35 /* skip_next_begin_main_frame_to_reduce_latency */:
-        field.get(&skip_next_begin_main_frame_to_reduce_latency_);
-        break;
-      case 36 /* video_needs_begin_frames */:
-        field.get(&video_needs_begin_frames_);
-        break;
-      case 37 /* defer_begin_main_frame */:
-        field.get(&defer_begin_main_frame_);
-        break;
-      case 38 /* last_commit_had_no_updates */:
-        field.get(&last_commit_had_no_updates_);
-        break;
-      case 39 /* did_draw_in_last_frame */:
-        field.get(&did_draw_in_last_frame_);
-        break;
-      case 40 /* did_submit_in_last_frame */:
-        field.get(&did_submit_in_last_frame_);
-        break;
-      case 41 /* needs_impl_side_invalidation */:
-        field.get(&needs_impl_side_invalidation_);
-        break;
-      case 42 /* current_pending_tree_is_impl_side */:
-        field.get(&current_pending_tree_is_impl_side_);
-        break;
-      case 43 /* previous_pending_tree_was_impl_side */:
-        field.get(&previous_pending_tree_was_impl_side_);
-        break;
-      case 44 /* processing_animation_worklets_for_active_tree */:
-        field.get(&processing_animation_worklets_for_active_tree_);
-        break;
-      case 45 /* processing_animation_worklets_for_pending_tree */:
-        field.get(&processing_animation_worklets_for_pending_tree_);
-        break;
-      case 46 /* processing_paint_worklets_for_pending_tree */:
-        field.get(&processing_paint_worklets_for_pending_tree_);
-        break;
-      default:
-        field.SerializeAndAppendTo(&unknown_fields_);
-        break;
-    }
-  }
-  return !packed_error && !dec.bytes_left();
-}
-
-std::string ChromeCompositorStateMachine_MinorState::SerializeAsString() const {
-  ::protozero::HeapBuffered<::protozero::Message> msg;
-  Serialize(msg.get());
-  return msg.SerializeAsString();
-}
-
-std::vector<uint8_t> ChromeCompositorStateMachine_MinorState::SerializeAsArray() const {
-  ::protozero::HeapBuffered<::protozero::Message> msg;
-  Serialize(msg.get());
-  return msg.SerializeAsArray();
-}
-
-void ChromeCompositorStateMachine_MinorState::Serialize(::protozero::Message* msg) const {
-  // Field 1: commit_count
-  if (_has_field_[1]) {
-    msg->AppendVarInt(1, commit_count_);
-  }
-
-  // Field 2: current_frame_number
-  if (_has_field_[2]) {
-    msg->AppendVarInt(2, current_frame_number_);
-  }
-
-  // Field 3: last_frame_number_submit_performed
-  if (_has_field_[3]) {
-    msg->AppendVarInt(3, last_frame_number_submit_performed_);
-  }
-
-  // Field 4: last_frame_number_draw_performed
-  if (_has_field_[4]) {
-    msg->AppendVarInt(4, last_frame_number_draw_performed_);
-  }
-
-  // Field 5: last_frame_number_begin_main_frame_sent
-  if (_has_field_[5]) {
-    msg->AppendVarInt(5, last_frame_number_begin_main_frame_sent_);
-  }
-
-  // Field 6: did_draw
-  if (_has_field_[6]) {
-    msg->AppendTinyVarInt(6, did_draw_);
-  }
-
-  // Field 7: did_send_begin_main_frame_for_current_frame
-  if (_has_field_[7]) {
-    msg->AppendTinyVarInt(7, did_send_begin_main_frame_for_current_frame_);
-  }
-
-  // Field 8: did_notify_begin_main_frame_not_expected_until
-  if (_has_field_[8]) {
-    msg->AppendTinyVarInt(8, did_notify_begin_main_frame_not_expected_until_);
-  }
-
-  // Field 9: did_notify_begin_main_frame_not_expected_soon
-  if (_has_field_[9]) {
-    msg->AppendTinyVarInt(9, did_notify_begin_main_frame_not_expected_soon_);
-  }
-
-  // Field 10: wants_begin_main_frame_not_expected
-  if (_has_field_[10]) {
-    msg->AppendTinyVarInt(10, wants_begin_main_frame_not_expected_);
-  }
-
-  // Field 11: did_commit_during_frame
-  if (_has_field_[11]) {
-    msg->AppendTinyVarInt(11, did_commit_during_frame_);
-  }
-
-  // Field 12: did_invalidate_layer_tree_frame_sink
-  if (_has_field_[12]) {
-    msg->AppendTinyVarInt(12, did_invalidate_layer_tree_frame_sink_);
-  }
-
-  // Field 13: did_perform_impl_side_invalidaion
-  if (_has_field_[13]) {
-    msg->AppendTinyVarInt(13, did_perform_impl_side_invalidaion_);
-  }
-
-  // Field 14: did_prepare_tiles
-  if (_has_field_[14]) {
-    msg->AppendTinyVarInt(14, did_prepare_tiles_);
-  }
-
-  // Field 15: consecutive_checkerboard_animations
-  if (_has_field_[15]) {
-    msg->AppendVarInt(15, consecutive_checkerboard_animations_);
-  }
-
-  // Field 16: pending_submit_frames
-  if (_has_field_[16]) {
-    msg->AppendVarInt(16, pending_submit_frames_);
-  }
-
-  // Field 17: submit_frames_with_current_layer_tree_frame_sink
-  if (_has_field_[17]) {
-    msg->AppendVarInt(17, submit_frames_with_current_layer_tree_frame_sink_);
-  }
-
-  // Field 18: needs_redraw
-  if (_has_field_[18]) {
-    msg->AppendTinyVarInt(18, needs_redraw_);
-  }
-
-  // Field 19: needs_prepare_tiles
-  if (_has_field_[19]) {
-    msg->AppendTinyVarInt(19, needs_prepare_tiles_);
-  }
-
-  // Field 20: needs_begin_main_frame
-  if (_has_field_[20]) {
-    msg->AppendTinyVarInt(20, needs_begin_main_frame_);
-  }
-
-  // Field 21: needs_one_begin_impl_frame
-  if (_has_field_[21]) {
-    msg->AppendTinyVarInt(21, needs_one_begin_impl_frame_);
-  }
-
-  // Field 22: visible
-  if (_has_field_[22]) {
-    msg->AppendTinyVarInt(22, visible_);
-  }
-
-  // Field 23: begin_frame_source_paused
-  if (_has_field_[23]) {
-    msg->AppendTinyVarInt(23, begin_frame_source_paused_);
-  }
-
-  // Field 24: can_draw
-  if (_has_field_[24]) {
-    msg->AppendTinyVarInt(24, can_draw_);
-  }
-
-  // Field 25: resourceless_draw
-  if (_has_field_[25]) {
-    msg->AppendTinyVarInt(25, resourceless_draw_);
-  }
-
-  // Field 26: has_pending_tree
-  if (_has_field_[26]) {
-    msg->AppendTinyVarInt(26, has_pending_tree_);
-  }
-
-  // Field 27: pending_tree_is_ready_for_activation
-  if (_has_field_[27]) {
-    msg->AppendTinyVarInt(27, pending_tree_is_ready_for_activation_);
-  }
-
-  // Field 28: active_tree_needs_first_draw
-  if (_has_field_[28]) {
-    msg->AppendTinyVarInt(28, active_tree_needs_first_draw_);
-  }
-
-  // Field 29: active_tree_is_ready_to_draw
-  if (_has_field_[29]) {
-    msg->AppendTinyVarInt(29, active_tree_is_ready_to_draw_);
-  }
-
-  // Field 30: did_create_and_initialize_first_layer_tree_frame_sink
-  if (_has_field_[30]) {
-    msg->AppendTinyVarInt(30, did_create_and_initialize_first_layer_tree_frame_sink_);
-  }
-
-  // Field 31: tree_priority
-  if (_has_field_[31]) {
-    msg->AppendVarInt(31, tree_priority_);
-  }
-
-  // Field 32: scroll_handler_state
-  if (_has_field_[32]) {
-    msg->AppendVarInt(32, scroll_handler_state_);
-  }
-
-  // Field 33: critical_begin_main_frame_to_activate_is_fast
-  if (_has_field_[33]) {
-    msg->AppendTinyVarInt(33, critical_begin_main_frame_to_activate_is_fast_);
-  }
-
-  // Field 34: main_thread_missed_last_deadline
-  if (_has_field_[34]) {
-    msg->AppendTinyVarInt(34, main_thread_missed_last_deadline_);
-  }
-
-  // Field 35: skip_next_begin_main_frame_to_reduce_latency
-  if (_has_field_[35]) {
-    msg->AppendTinyVarInt(35, skip_next_begin_main_frame_to_reduce_latency_);
-  }
-
-  // Field 36: video_needs_begin_frames
-  if (_has_field_[36]) {
-    msg->AppendTinyVarInt(36, video_needs_begin_frames_);
-  }
-
-  // Field 37: defer_begin_main_frame
-  if (_has_field_[37]) {
-    msg->AppendTinyVarInt(37, defer_begin_main_frame_);
-  }
-
-  // Field 38: last_commit_had_no_updates
-  if (_has_field_[38]) {
-    msg->AppendTinyVarInt(38, last_commit_had_no_updates_);
-  }
-
-  // Field 39: did_draw_in_last_frame
-  if (_has_field_[39]) {
-    msg->AppendTinyVarInt(39, did_draw_in_last_frame_);
-  }
-
-  // Field 40: did_submit_in_last_frame
-  if (_has_field_[40]) {
-    msg->AppendTinyVarInt(40, did_submit_in_last_frame_);
-  }
-
-  // Field 41: needs_impl_side_invalidation
-  if (_has_field_[41]) {
-    msg->AppendTinyVarInt(41, needs_impl_side_invalidation_);
-  }
-
-  // Field 42: current_pending_tree_is_impl_side
-  if (_has_field_[42]) {
-    msg->AppendTinyVarInt(42, current_pending_tree_is_impl_side_);
-  }
-
-  // Field 43: previous_pending_tree_was_impl_side
-  if (_has_field_[43]) {
-    msg->AppendTinyVarInt(43, previous_pending_tree_was_impl_side_);
-  }
-
-  // Field 44: processing_animation_worklets_for_active_tree
-  if (_has_field_[44]) {
-    msg->AppendTinyVarInt(44, processing_animation_worklets_for_active_tree_);
-  }
-
-  // Field 45: processing_animation_worklets_for_pending_tree
-  if (_has_field_[45]) {
-    msg->AppendTinyVarInt(45, processing_animation_worklets_for_pending_tree_);
-  }
-
-  // Field 46: processing_paint_worklets_for_pending_tree
-  if (_has_field_[46]) {
-    msg->AppendTinyVarInt(46, processing_paint_worklets_for_pending_tree_);
-  }
-
-  msg->AppendRawProtoBytes(unknown_fields_.data(), unknown_fields_.size());
-}
-
-
-ChromeCompositorStateMachine_MajorState::ChromeCompositorStateMachine_MajorState() = default;
-ChromeCompositorStateMachine_MajorState::~ChromeCompositorStateMachine_MajorState() = default;
-ChromeCompositorStateMachine_MajorState::ChromeCompositorStateMachine_MajorState(const ChromeCompositorStateMachine_MajorState&) = default;
-ChromeCompositorStateMachine_MajorState& ChromeCompositorStateMachine_MajorState::operator=(const ChromeCompositorStateMachine_MajorState&) = default;
-ChromeCompositorStateMachine_MajorState::ChromeCompositorStateMachine_MajorState(ChromeCompositorStateMachine_MajorState&&) noexcept = default;
-ChromeCompositorStateMachine_MajorState& ChromeCompositorStateMachine_MajorState::operator=(ChromeCompositorStateMachine_MajorState&&) = default;
-
-bool ChromeCompositorStateMachine_MajorState::operator==(const ChromeCompositorStateMachine_MajorState& other) const {
-  return unknown_fields_ == other.unknown_fields_
-   && next_action_ == other.next_action_
-   && begin_impl_frame_state_ == other.begin_impl_frame_state_
-   && begin_main_frame_state_ == other.begin_main_frame_state_
-   && layer_tree_frame_sink_state_ == other.layer_tree_frame_sink_state_
-   && forced_redraw_state_ == other.forced_redraw_state_;
-}
-
-bool ChromeCompositorStateMachine_MajorState::ParseFromArray(const void* raw, size_t size) {
-  unknown_fields_.clear();
-  bool packed_error = false;
-
-  ::protozero::ProtoDecoder dec(raw, size);
-  for (auto field = dec.ReadField(); field.valid(); field = dec.ReadField()) {
-    if (field.id() < _has_field_.size()) {
-      _has_field_.set(field.id());
-    }
-    switch (field.id()) {
-      case 1 /* next_action */:
-        field.get(&next_action_);
-        break;
-      case 2 /* begin_impl_frame_state */:
-        field.get(&begin_impl_frame_state_);
-        break;
-      case 3 /* begin_main_frame_state */:
-        field.get(&begin_main_frame_state_);
-        break;
-      case 4 /* layer_tree_frame_sink_state */:
-        field.get(&layer_tree_frame_sink_state_);
-        break;
-      case 5 /* forced_redraw_state */:
-        field.get(&forced_redraw_state_);
-        break;
-      default:
-        field.SerializeAndAppendTo(&unknown_fields_);
-        break;
-    }
-  }
-  return !packed_error && !dec.bytes_left();
-}
-
-std::string ChromeCompositorStateMachine_MajorState::SerializeAsString() const {
-  ::protozero::HeapBuffered<::protozero::Message> msg;
-  Serialize(msg.get());
-  return msg.SerializeAsString();
-}
-
-std::vector<uint8_t> ChromeCompositorStateMachine_MajorState::SerializeAsArray() const {
-  ::protozero::HeapBuffered<::protozero::Message> msg;
-  Serialize(msg.get());
-  return msg.SerializeAsArray();
-}
-
-void ChromeCompositorStateMachine_MajorState::Serialize(::protozero::Message* msg) const {
-  // Field 1: next_action
-  if (_has_field_[1]) {
-    msg->AppendVarInt(1, next_action_);
-  }
-
-  // Field 2: begin_impl_frame_state
-  if (_has_field_[2]) {
-    msg->AppendVarInt(2, begin_impl_frame_state_);
-  }
-
-  // Field 3: begin_main_frame_state
-  if (_has_field_[3]) {
-    msg->AppendVarInt(3, begin_main_frame_state_);
-  }
-
-  // Field 4: layer_tree_frame_sink_state
-  if (_has_field_[4]) {
-    msg->AppendVarInt(4, layer_tree_frame_sink_state_);
-  }
-
-  // Field 5: forced_redraw_state
-  if (_has_field_[5]) {
-    msg->AppendVarInt(5, forced_redraw_state_);
-  }
-
-  msg->AppendRawProtoBytes(unknown_fields_.data(), unknown_fields_.size());
-}
-
-
-ChromeCompositorSchedulerState::ChromeCompositorSchedulerState() = default;
-ChromeCompositorSchedulerState::~ChromeCompositorSchedulerState() = default;
-ChromeCompositorSchedulerState::ChromeCompositorSchedulerState(const ChromeCompositorSchedulerState&) = default;
-ChromeCompositorSchedulerState& ChromeCompositorSchedulerState::operator=(const ChromeCompositorSchedulerState&) = default;
-ChromeCompositorSchedulerState::ChromeCompositorSchedulerState(ChromeCompositorSchedulerState&&) noexcept = default;
-ChromeCompositorSchedulerState& ChromeCompositorSchedulerState::operator=(ChromeCompositorSchedulerState&&) = default;
-
-bool ChromeCompositorSchedulerState::operator==(const ChromeCompositorSchedulerState& other) const {
-  return unknown_fields_ == other.unknown_fields_
-   && state_machine_ == other.state_machine_
-   && observing_begin_frame_source_ == other.observing_begin_frame_source_
-   && begin_impl_frame_deadline_task_ == other.begin_impl_frame_deadline_task_
-   && pending_begin_frame_task_ == other.pending_begin_frame_task_
-   && skipped_last_frame_missed_exceeded_deadline_ == other.skipped_last_frame_missed_exceeded_deadline_
-   && skipped_last_frame_to_reduce_latency_ == other.skipped_last_frame_to_reduce_latency_
-   && inside_action_ == other.inside_action_
-   && deadline_mode_ == other.deadline_mode_
-   && deadline_us_ == other.deadline_us_
-   && deadline_scheduled_at_us_ == other.deadline_scheduled_at_us_
-   && now_us_ == other.now_us_
-   && now_to_deadline_delta_us_ == other.now_to_deadline_delta_us_
-   && now_to_deadline_scheduled_at_delta_us_ == other.now_to_deadline_scheduled_at_delta_us_
-   && begin_impl_frame_args_ == other.begin_impl_frame_args_
-   && begin_frame_observer_state_ == other.begin_frame_observer_state_
-   && begin_frame_source_state_ == other.begin_frame_source_state_
-   && compositor_timing_history_ == other.compositor_timing_history_;
-}
-
-bool ChromeCompositorSchedulerState::ParseFromArray(const void* raw, size_t size) {
-  unknown_fields_.clear();
-  bool packed_error = false;
-
-  ::protozero::ProtoDecoder dec(raw, size);
-  for (auto field = dec.ReadField(); field.valid(); field = dec.ReadField()) {
-    if (field.id() < _has_field_.size()) {
-      _has_field_.set(field.id());
-    }
-    switch (field.id()) {
-      case 1 /* state_machine */:
-        (*state_machine_).ParseFromArray(field.data(), field.size());
-        break;
-      case 2 /* observing_begin_frame_source */:
-        field.get(&observing_begin_frame_source_);
-        break;
-      case 3 /* begin_impl_frame_deadline_task */:
-        field.get(&begin_impl_frame_deadline_task_);
-        break;
-      case 4 /* pending_begin_frame_task */:
-        field.get(&pending_begin_frame_task_);
-        break;
-      case 5 /* skipped_last_frame_missed_exceeded_deadline */:
-        field.get(&skipped_last_frame_missed_exceeded_deadline_);
-        break;
-      case 6 /* skipped_last_frame_to_reduce_latency */:
-        field.get(&skipped_last_frame_to_reduce_latency_);
-        break;
-      case 7 /* inside_action */:
-        field.get(&inside_action_);
-        break;
-      case 8 /* deadline_mode */:
-        field.get(&deadline_mode_);
-        break;
-      case 9 /* deadline_us */:
-        field.get(&deadline_us_);
-        break;
-      case 10 /* deadline_scheduled_at_us */:
-        field.get(&deadline_scheduled_at_us_);
-        break;
-      case 11 /* now_us */:
-        field.get(&now_us_);
-        break;
-      case 12 /* now_to_deadline_delta_us */:
-        field.get(&now_to_deadline_delta_us_);
-        break;
-      case 13 /* now_to_deadline_scheduled_at_delta_us */:
-        field.get(&now_to_deadline_scheduled_at_delta_us_);
-        break;
-      case 14 /* begin_impl_frame_args */:
-        (*begin_impl_frame_args_).ParseFromArray(field.data(), field.size());
-        break;
-      case 15 /* begin_frame_observer_state */:
-        (*begin_frame_observer_state_).ParseFromArray(field.data(), field.size());
-        break;
-      case 16 /* begin_frame_source_state */:
-        (*begin_frame_source_state_).ParseFromArray(field.data(), field.size());
-        break;
-      case 17 /* compositor_timing_history */:
-        (*compositor_timing_history_).ParseFromArray(field.data(), field.size());
-        break;
-      default:
-        field.SerializeAndAppendTo(&unknown_fields_);
-        break;
-    }
-  }
-  return !packed_error && !dec.bytes_left();
-}
-
-std::string ChromeCompositorSchedulerState::SerializeAsString() const {
-  ::protozero::HeapBuffered<::protozero::Message> msg;
-  Serialize(msg.get());
-  return msg.SerializeAsString();
-}
-
-std::vector<uint8_t> ChromeCompositorSchedulerState::SerializeAsArray() const {
-  ::protozero::HeapBuffered<::protozero::Message> msg;
-  Serialize(msg.get());
-  return msg.SerializeAsArray();
-}
-
-void ChromeCompositorSchedulerState::Serialize(::protozero::Message* msg) const {
-  // Field 1: state_machine
-  if (_has_field_[1]) {
-    (*state_machine_).Serialize(msg->BeginNestedMessage<::protozero::Message>(1));
-  }
-
-  // Field 2: observing_begin_frame_source
-  if (_has_field_[2]) {
-    msg->AppendTinyVarInt(2, observing_begin_frame_source_);
-  }
-
-  // Field 3: begin_impl_frame_deadline_task
-  if (_has_field_[3]) {
-    msg->AppendTinyVarInt(3, begin_impl_frame_deadline_task_);
-  }
-
-  // Field 4: pending_begin_frame_task
-  if (_has_field_[4]) {
-    msg->AppendTinyVarInt(4, pending_begin_frame_task_);
-  }
-
-  // Field 5: skipped_last_frame_missed_exceeded_deadline
-  if (_has_field_[5]) {
-    msg->AppendTinyVarInt(5, skipped_last_frame_missed_exceeded_deadline_);
-  }
-
-  // Field 6: skipped_last_frame_to_reduce_latency
-  if (_has_field_[6]) {
-    msg->AppendTinyVarInt(6, skipped_last_frame_to_reduce_latency_);
-  }
-
-  // Field 7: inside_action
-  if (_has_field_[7]) {
-    msg->AppendVarInt(7, inside_action_);
-  }
-
-  // Field 8: deadline_mode
-  if (_has_field_[8]) {
-    msg->AppendVarInt(8, deadline_mode_);
-  }
-
-  // Field 9: deadline_us
-  if (_has_field_[9]) {
-    msg->AppendVarInt(9, deadline_us_);
-  }
-
-  // Field 10: deadline_scheduled_at_us
-  if (_has_field_[10]) {
-    msg->AppendVarInt(10, deadline_scheduled_at_us_);
-  }
-
-  // Field 11: now_us
-  if (_has_field_[11]) {
-    msg->AppendVarInt(11, now_us_);
-  }
-
-  // Field 12: now_to_deadline_delta_us
-  if (_has_field_[12]) {
-    msg->AppendVarInt(12, now_to_deadline_delta_us_);
-  }
-
-  // Field 13: now_to_deadline_scheduled_at_delta_us
-  if (_has_field_[13]) {
-    msg->AppendVarInt(13, now_to_deadline_scheduled_at_delta_us_);
-  }
-
-  // Field 14: begin_impl_frame_args
-  if (_has_field_[14]) {
-    (*begin_impl_frame_args_).Serialize(msg->BeginNestedMessage<::protozero::Message>(14));
-  }
-
-  // Field 15: begin_frame_observer_state
-  if (_has_field_[15]) {
-    (*begin_frame_observer_state_).Serialize(msg->BeginNestedMessage<::protozero::Message>(15));
-  }
-
-  // Field 16: begin_frame_source_state
-  if (_has_field_[16]) {
-    (*begin_frame_source_state_).Serialize(msg->BeginNestedMessage<::protozero::Message>(16));
-  }
-
-  // Field 17: compositor_timing_history
-  if (_has_field_[17]) {
-    (*compositor_timing_history_).Serialize(msg->BeginNestedMessage<::protozero::Message>(17));
-  }
-
-  msg->AppendRawProtoBytes(unknown_fields_.data(), unknown_fields_.size());
-}
-
-}  // namespace perfetto
-}  // namespace protos
-}  // namespace gen
-#if defined(__GNUC__) || defined(__clang__)
-#pragma GCC diagnostic pop
-#endif
-// gen_amalgamated begin source: gen/protos/perfetto/trace/track_event/chrome_content_settings_event_info.gen.cc
-// gen_amalgamated begin header: gen/protos/perfetto/trace/track_event/chrome_content_settings_event_info.gen.h
-// DO NOT EDIT. Autogenerated by Perfetto cppgen_plugin
-#ifndef PERFETTO_PROTOS_PROTOS_PERFETTO_TRACE_TRACK_EVENT_CHROME_CONTENT_SETTINGS_EVENT_INFO_PROTO_CPP_H_
-#define PERFETTO_PROTOS_PROTOS_PERFETTO_TRACE_TRACK_EVENT_CHROME_CONTENT_SETTINGS_EVENT_INFO_PROTO_CPP_H_
-
-#include <stdint.h>
-#include <bitset>
-#include <vector>
-#include <string>
-#include <type_traits>
-
-// gen_amalgamated expanded: #include "perfetto/protozero/cpp_message_obj.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/copyable_ptr.h"
-// gen_amalgamated expanded: #include "perfetto/base/export.h"
-
-namespace perfetto {
-namespace protos {
-namespace gen {
-class ChromeContentSettingsEventInfo;
-}  // namespace perfetto
-}  // namespace protos
-}  // namespace gen
-
-namespace protozero {
-class Message;
-}  // namespace protozero
-
-namespace perfetto {
-namespace protos {
-namespace gen {
-
-class PERFETTO_EXPORT ChromeContentSettingsEventInfo : public ::protozero::CppMessageObj {
- public:
-  enum FieldNumbers {
-    kNumberOfExceptionsFieldNumber = 1,
-  };
-
-  ChromeContentSettingsEventInfo();
-  ~ChromeContentSettingsEventInfo() override;
-  ChromeContentSettingsEventInfo(ChromeContentSettingsEventInfo&&) noexcept;
-  ChromeContentSettingsEventInfo& operator=(ChromeContentSettingsEventInfo&&);
-  ChromeContentSettingsEventInfo(const ChromeContentSettingsEventInfo&);
-  ChromeContentSettingsEventInfo& operator=(const ChromeContentSettingsEventInfo&);
-  bool operator==(const ChromeContentSettingsEventInfo&) const;
-  bool operator!=(const ChromeContentSettingsEventInfo& other) const { return !(*this == other); }
-
-  bool ParseFromArray(const void*, size_t) override;
-  std::string SerializeAsString() const override;
-  std::vector<uint8_t> SerializeAsArray() const override;
-  void Serialize(::protozero::Message*) const;
-
-  bool has_number_of_exceptions() const { return _has_field_[1]; }
-  uint32_t number_of_exceptions() const { return number_of_exceptions_; }
-  void set_number_of_exceptions(uint32_t value) { number_of_exceptions_ = value; _has_field_.set(1); }
-
- private:
-  uint32_t number_of_exceptions_{};
-
-  // Allows to preserve unknown protobuf fields for compatibility
-  // with future versions of .proto files.
-  std::string unknown_fields_;
-
-  std::bitset<2> _has_field_{};
-};
-
-}  // namespace perfetto
-}  // namespace protos
-}  // namespace gen
-
-#endif  // PERFETTO_PROTOS_PROTOS_PERFETTO_TRACE_TRACK_EVENT_CHROME_CONTENT_SETTINGS_EVENT_INFO_PROTO_CPP_H_
-// gen_amalgamated expanded: #include "perfetto/protozero/message.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/packed_repeated_fields.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/proto_decoder.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/scattered_heap_buffer.h"
-// DO NOT EDIT. Autogenerated by Perfetto cppgen_plugin
-#if defined(__GNUC__) || defined(__clang__)
-#pragma GCC diagnostic push
-#pragma GCC diagnostic ignored "-Wfloat-equal"
-#endif
-// gen_amalgamated expanded: #include "protos/perfetto/trace/track_event/chrome_content_settings_event_info.gen.h"
-
-namespace perfetto {
-namespace protos {
-namespace gen {
-
-ChromeContentSettingsEventInfo::ChromeContentSettingsEventInfo() = default;
-ChromeContentSettingsEventInfo::~ChromeContentSettingsEventInfo() = default;
-ChromeContentSettingsEventInfo::ChromeContentSettingsEventInfo(const ChromeContentSettingsEventInfo&) = default;
-ChromeContentSettingsEventInfo& ChromeContentSettingsEventInfo::operator=(const ChromeContentSettingsEventInfo&) = default;
-ChromeContentSettingsEventInfo::ChromeContentSettingsEventInfo(ChromeContentSettingsEventInfo&&) noexcept = default;
-ChromeContentSettingsEventInfo& ChromeContentSettingsEventInfo::operator=(ChromeContentSettingsEventInfo&&) = default;
-
-bool ChromeContentSettingsEventInfo::operator==(const ChromeContentSettingsEventInfo& other) const {
-  return unknown_fields_ == other.unknown_fields_
-   && number_of_exceptions_ == other.number_of_exceptions_;
-}
-
-bool ChromeContentSettingsEventInfo::ParseFromArray(const void* raw, size_t size) {
-  unknown_fields_.clear();
-  bool packed_error = false;
-
-  ::protozero::ProtoDecoder dec(raw, size);
-  for (auto field = dec.ReadField(); field.valid(); field = dec.ReadField()) {
-    if (field.id() < _has_field_.size()) {
-      _has_field_.set(field.id());
-    }
-    switch (field.id()) {
-      case 1 /* number_of_exceptions */:
-        field.get(&number_of_exceptions_);
-        break;
-      default:
-        field.SerializeAndAppendTo(&unknown_fields_);
-        break;
-    }
-  }
-  return !packed_error && !dec.bytes_left();
-}
-
-std::string ChromeContentSettingsEventInfo::SerializeAsString() const {
-  ::protozero::HeapBuffered<::protozero::Message> msg;
-  Serialize(msg.get());
-  return msg.SerializeAsString();
-}
-
-std::vector<uint8_t> ChromeContentSettingsEventInfo::SerializeAsArray() const {
-  ::protozero::HeapBuffered<::protozero::Message> msg;
-  Serialize(msg.get());
-  return msg.SerializeAsArray();
-}
-
-void ChromeContentSettingsEventInfo::Serialize(::protozero::Message* msg) const {
-  // Field 1: number_of_exceptions
-  if (_has_field_[1]) {
-    msg->AppendVarInt(1, number_of_exceptions_);
-  }
-
-  msg->AppendRawProtoBytes(unknown_fields_.data(), unknown_fields_.size());
-}
-
-}  // namespace perfetto
-}  // namespace protos
-}  // namespace gen
-#if defined(__GNUC__) || defined(__clang__)
-#pragma GCC diagnostic pop
-#endif
-// gen_amalgamated begin source: gen/protos/perfetto/trace/track_event/chrome_frame_reporter.gen.cc
-// gen_amalgamated begin header: gen/protos/perfetto/trace/track_event/chrome_frame_reporter.gen.h
-// DO NOT EDIT. Autogenerated by Perfetto cppgen_plugin
-#ifndef PERFETTO_PROTOS_PROTOS_PERFETTO_TRACE_TRACK_EVENT_CHROME_FRAME_REPORTER_PROTO_CPP_H_
-#define PERFETTO_PROTOS_PROTOS_PERFETTO_TRACE_TRACK_EVENT_CHROME_FRAME_REPORTER_PROTO_CPP_H_
-
-#include <stdint.h>
-#include <bitset>
-#include <vector>
-#include <string>
-#include <type_traits>
-
-// gen_amalgamated expanded: #include "perfetto/protozero/cpp_message_obj.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/copyable_ptr.h"
-// gen_amalgamated expanded: #include "perfetto/base/export.h"
-
-namespace perfetto {
-namespace protos {
-namespace gen {
-class ChromeFrameReporter;
-enum ChromeFrameReporter_State : int;
-enum ChromeFrameReporter_FrameDropReason : int;
-enum ChromeFrameReporter_ScrollState : int;
-}  // namespace perfetto
-}  // namespace protos
-}  // namespace gen
-
-namespace protozero {
-class Message;
-}  // namespace protozero
-
-namespace perfetto {
-namespace protos {
-namespace gen {
-enum ChromeFrameReporter_State : int {
-  ChromeFrameReporter_State_STATE_NO_UPDATE_DESIRED = 0,
-  ChromeFrameReporter_State_STATE_PRESENTED_ALL = 1,
-  ChromeFrameReporter_State_STATE_PRESENTED_PARTIAL = 2,
-  ChromeFrameReporter_State_STATE_DROPPED = 3,
-};
-enum ChromeFrameReporter_FrameDropReason : int {
-  ChromeFrameReporter_FrameDropReason_REASON_UNSPECIFIED = 0,
-  ChromeFrameReporter_FrameDropReason_REASON_DISPLAY_COMPOSITOR = 1,
-  ChromeFrameReporter_FrameDropReason_REASON_MAIN_THREAD = 2,
-  ChromeFrameReporter_FrameDropReason_REASON_CLIENT_COMPOSITOR = 3,
-};
-enum ChromeFrameReporter_ScrollState : int {
-  ChromeFrameReporter_ScrollState_SCROLL_NONE = 0,
-  ChromeFrameReporter_ScrollState_SCROLL_MAIN_THREAD = 1,
-  ChromeFrameReporter_ScrollState_SCROLL_COMPOSITOR_THREAD = 2,
-  ChromeFrameReporter_ScrollState_SCROLL_UNKNOWN = 3,
-};
-
-class PERFETTO_EXPORT ChromeFrameReporter : public ::protozero::CppMessageObj {
- public:
-  using State = ChromeFrameReporter_State;
-  static constexpr auto STATE_NO_UPDATE_DESIRED = ChromeFrameReporter_State_STATE_NO_UPDATE_DESIRED;
-  static constexpr auto STATE_PRESENTED_ALL = ChromeFrameReporter_State_STATE_PRESENTED_ALL;
-  static constexpr auto STATE_PRESENTED_PARTIAL = ChromeFrameReporter_State_STATE_PRESENTED_PARTIAL;
-  static constexpr auto STATE_DROPPED = ChromeFrameReporter_State_STATE_DROPPED;
-  static constexpr auto State_MIN = ChromeFrameReporter_State_STATE_NO_UPDATE_DESIRED;
-  static constexpr auto State_MAX = ChromeFrameReporter_State_STATE_DROPPED;
-  using FrameDropReason = ChromeFrameReporter_FrameDropReason;
-  static constexpr auto REASON_UNSPECIFIED = ChromeFrameReporter_FrameDropReason_REASON_UNSPECIFIED;
-  static constexpr auto REASON_DISPLAY_COMPOSITOR = ChromeFrameReporter_FrameDropReason_REASON_DISPLAY_COMPOSITOR;
-  static constexpr auto REASON_MAIN_THREAD = ChromeFrameReporter_FrameDropReason_REASON_MAIN_THREAD;
-  static constexpr auto REASON_CLIENT_COMPOSITOR = ChromeFrameReporter_FrameDropReason_REASON_CLIENT_COMPOSITOR;
-  static constexpr auto FrameDropReason_MIN = ChromeFrameReporter_FrameDropReason_REASON_UNSPECIFIED;
-  static constexpr auto FrameDropReason_MAX = ChromeFrameReporter_FrameDropReason_REASON_CLIENT_COMPOSITOR;
-  using ScrollState = ChromeFrameReporter_ScrollState;
-  static constexpr auto SCROLL_NONE = ChromeFrameReporter_ScrollState_SCROLL_NONE;
-  static constexpr auto SCROLL_MAIN_THREAD = ChromeFrameReporter_ScrollState_SCROLL_MAIN_THREAD;
-  static constexpr auto SCROLL_COMPOSITOR_THREAD = ChromeFrameReporter_ScrollState_SCROLL_COMPOSITOR_THREAD;
-  static constexpr auto SCROLL_UNKNOWN = ChromeFrameReporter_ScrollState_SCROLL_UNKNOWN;
-  static constexpr auto ScrollState_MIN = ChromeFrameReporter_ScrollState_SCROLL_NONE;
-  static constexpr auto ScrollState_MAX = ChromeFrameReporter_ScrollState_SCROLL_UNKNOWN;
-  enum FieldNumbers {
-    kStateFieldNumber = 1,
-    kReasonFieldNumber = 2,
-    kFrameSourceFieldNumber = 3,
-    kFrameSequenceFieldNumber = 4,
-    kAffectsSmoothnessFieldNumber = 5,
-    kScrollStateFieldNumber = 6,
-    kHasMainAnimationFieldNumber = 7,
-    kHasCompositorAnimationFieldNumber = 8,
-    kHasSmoothInputMainFieldNumber = 9,
-    kHasMissingContentFieldNumber = 10,
-    kLayerTreeHostIdFieldNumber = 11,
-  };
-
-  ChromeFrameReporter();
-  ~ChromeFrameReporter() override;
-  ChromeFrameReporter(ChromeFrameReporter&&) noexcept;
-  ChromeFrameReporter& operator=(ChromeFrameReporter&&);
-  ChromeFrameReporter(const ChromeFrameReporter&);
-  ChromeFrameReporter& operator=(const ChromeFrameReporter&);
-  bool operator==(const ChromeFrameReporter&) const;
-  bool operator!=(const ChromeFrameReporter& other) const { return !(*this == other); }
-
-  bool ParseFromArray(const void*, size_t) override;
-  std::string SerializeAsString() const override;
-  std::vector<uint8_t> SerializeAsArray() const override;
-  void Serialize(::protozero::Message*) const;
-
-  bool has_state() const { return _has_field_[1]; }
-  ChromeFrameReporter_State state() const { return state_; }
-  void set_state(ChromeFrameReporter_State value) { state_ = value; _has_field_.set(1); }
-
-  bool has_reason() const { return _has_field_[2]; }
-  ChromeFrameReporter_FrameDropReason reason() const { return reason_; }
-  void set_reason(ChromeFrameReporter_FrameDropReason value) { reason_ = value; _has_field_.set(2); }
-
-  bool has_frame_source() const { return _has_field_[3]; }
-  uint64_t frame_source() const { return frame_source_; }
-  void set_frame_source(uint64_t value) { frame_source_ = value; _has_field_.set(3); }
-
-  bool has_frame_sequence() const { return _has_field_[4]; }
-  uint64_t frame_sequence() const { return frame_sequence_; }
-  void set_frame_sequence(uint64_t value) { frame_sequence_ = value; _has_field_.set(4); }
-
-  bool has_affects_smoothness() const { return _has_field_[5]; }
-  bool affects_smoothness() const { return affects_smoothness_; }
-  void set_affects_smoothness(bool value) { affects_smoothness_ = value; _has_field_.set(5); }
-
-  bool has_scroll_state() const { return _has_field_[6]; }
-  ChromeFrameReporter_ScrollState scroll_state() const { return scroll_state_; }
-  void set_scroll_state(ChromeFrameReporter_ScrollState value) { scroll_state_ = value; _has_field_.set(6); }
-
-  bool has_has_main_animation() const { return _has_field_[7]; }
-  bool has_main_animation() const { return has_main_animation_; }
-  void set_has_main_animation(bool value) { has_main_animation_ = value; _has_field_.set(7); }
-
-  bool has_has_compositor_animation() const { return _has_field_[8]; }
-  bool has_compositor_animation() const { return has_compositor_animation_; }
-  void set_has_compositor_animation(bool value) { has_compositor_animation_ = value; _has_field_.set(8); }
-
-  bool has_has_smooth_input_main() const { return _has_field_[9]; }
-  bool has_smooth_input_main() const { return has_smooth_input_main_; }
-  void set_has_smooth_input_main(bool value) { has_smooth_input_main_ = value; _has_field_.set(9); }
-
-  bool has_has_missing_content() const { return _has_field_[10]; }
-  bool has_missing_content() const { return has_missing_content_; }
-  void set_has_missing_content(bool value) { has_missing_content_ = value; _has_field_.set(10); }
-
-  bool has_layer_tree_host_id() const { return _has_field_[11]; }
-  uint64_t layer_tree_host_id() const { return layer_tree_host_id_; }
-  void set_layer_tree_host_id(uint64_t value) { layer_tree_host_id_ = value; _has_field_.set(11); }
-
- private:
-  ChromeFrameReporter_State state_{};
-  ChromeFrameReporter_FrameDropReason reason_{};
-  uint64_t frame_source_{};
-  uint64_t frame_sequence_{};
-  bool affects_smoothness_{};
-  ChromeFrameReporter_ScrollState scroll_state_{};
-  bool has_main_animation_{};
-  bool has_compositor_animation_{};
-  bool has_smooth_input_main_{};
-  bool has_missing_content_{};
-  uint64_t layer_tree_host_id_{};
-
-  // Allows to preserve unknown protobuf fields for compatibility
-  // with future versions of .proto files.
-  std::string unknown_fields_;
-
-  std::bitset<12> _has_field_{};
-};
-
-}  // namespace perfetto
-}  // namespace protos
-}  // namespace gen
-
-#endif  // PERFETTO_PROTOS_PROTOS_PERFETTO_TRACE_TRACK_EVENT_CHROME_FRAME_REPORTER_PROTO_CPP_H_
-// gen_amalgamated expanded: #include "perfetto/protozero/message.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/packed_repeated_fields.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/proto_decoder.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/scattered_heap_buffer.h"
-// DO NOT EDIT. Autogenerated by Perfetto cppgen_plugin
-#if defined(__GNUC__) || defined(__clang__)
-#pragma GCC diagnostic push
-#pragma GCC diagnostic ignored "-Wfloat-equal"
-#endif
-// gen_amalgamated expanded: #include "protos/perfetto/trace/track_event/chrome_frame_reporter.gen.h"
-
-namespace perfetto {
-namespace protos {
-namespace gen {
-
-ChromeFrameReporter::ChromeFrameReporter() = default;
-ChromeFrameReporter::~ChromeFrameReporter() = default;
-ChromeFrameReporter::ChromeFrameReporter(const ChromeFrameReporter&) = default;
-ChromeFrameReporter& ChromeFrameReporter::operator=(const ChromeFrameReporter&) = default;
-ChromeFrameReporter::ChromeFrameReporter(ChromeFrameReporter&&) noexcept = default;
-ChromeFrameReporter& ChromeFrameReporter::operator=(ChromeFrameReporter&&) = default;
-
-bool ChromeFrameReporter::operator==(const ChromeFrameReporter& other) const {
-  return unknown_fields_ == other.unknown_fields_
-   && state_ == other.state_
-   && reason_ == other.reason_
-   && frame_source_ == other.frame_source_
-   && frame_sequence_ == other.frame_sequence_
-   && affects_smoothness_ == other.affects_smoothness_
-   && scroll_state_ == other.scroll_state_
-   && has_main_animation_ == other.has_main_animation_
-   && has_compositor_animation_ == other.has_compositor_animation_
-   && has_smooth_input_main_ == other.has_smooth_input_main_
-   && has_missing_content_ == other.has_missing_content_
-   && layer_tree_host_id_ == other.layer_tree_host_id_;
-}
-
-bool ChromeFrameReporter::ParseFromArray(const void* raw, size_t size) {
-  unknown_fields_.clear();
-  bool packed_error = false;
-
-  ::protozero::ProtoDecoder dec(raw, size);
-  for (auto field = dec.ReadField(); field.valid(); field = dec.ReadField()) {
-    if (field.id() < _has_field_.size()) {
-      _has_field_.set(field.id());
-    }
-    switch (field.id()) {
-      case 1 /* state */:
-        field.get(&state_);
-        break;
-      case 2 /* reason */:
-        field.get(&reason_);
-        break;
-      case 3 /* frame_source */:
-        field.get(&frame_source_);
-        break;
-      case 4 /* frame_sequence */:
-        field.get(&frame_sequence_);
-        break;
-      case 5 /* affects_smoothness */:
-        field.get(&affects_smoothness_);
-        break;
-      case 6 /* scroll_state */:
-        field.get(&scroll_state_);
-        break;
-      case 7 /* has_main_animation */:
-        field.get(&has_main_animation_);
-        break;
-      case 8 /* has_compositor_animation */:
-        field.get(&has_compositor_animation_);
-        break;
-      case 9 /* has_smooth_input_main */:
-        field.get(&has_smooth_input_main_);
-        break;
-      case 10 /* has_missing_content */:
-        field.get(&has_missing_content_);
-        break;
-      case 11 /* layer_tree_host_id */:
-        field.get(&layer_tree_host_id_);
-        break;
-      default:
-        field.SerializeAndAppendTo(&unknown_fields_);
-        break;
-    }
-  }
-  return !packed_error && !dec.bytes_left();
-}
-
-std::string ChromeFrameReporter::SerializeAsString() const {
-  ::protozero::HeapBuffered<::protozero::Message> msg;
-  Serialize(msg.get());
-  return msg.SerializeAsString();
-}
-
-std::vector<uint8_t> ChromeFrameReporter::SerializeAsArray() const {
-  ::protozero::HeapBuffered<::protozero::Message> msg;
-  Serialize(msg.get());
-  return msg.SerializeAsArray();
-}
-
-void ChromeFrameReporter::Serialize(::protozero::Message* msg) const {
-  // Field 1: state
-  if (_has_field_[1]) {
-    msg->AppendVarInt(1, state_);
-  }
-
-  // Field 2: reason
-  if (_has_field_[2]) {
-    msg->AppendVarInt(2, reason_);
-  }
-
-  // Field 3: frame_source
-  if (_has_field_[3]) {
-    msg->AppendVarInt(3, frame_source_);
-  }
-
-  // Field 4: frame_sequence
-  if (_has_field_[4]) {
-    msg->AppendVarInt(4, frame_sequence_);
-  }
-
-  // Field 5: affects_smoothness
-  if (_has_field_[5]) {
-    msg->AppendTinyVarInt(5, affects_smoothness_);
-  }
-
-  // Field 6: scroll_state
-  if (_has_field_[6]) {
-    msg->AppendVarInt(6, scroll_state_);
-  }
-
-  // Field 7: has_main_animation
-  if (_has_field_[7]) {
-    msg->AppendTinyVarInt(7, has_main_animation_);
-  }
-
-  // Field 8: has_compositor_animation
-  if (_has_field_[8]) {
-    msg->AppendTinyVarInt(8, has_compositor_animation_);
-  }
-
-  // Field 9: has_smooth_input_main
-  if (_has_field_[9]) {
-    msg->AppendTinyVarInt(9, has_smooth_input_main_);
-  }
-
-  // Field 10: has_missing_content
-  if (_has_field_[10]) {
-    msg->AppendTinyVarInt(10, has_missing_content_);
-  }
-
-  // Field 11: layer_tree_host_id
-  if (_has_field_[11]) {
-    msg->AppendVarInt(11, layer_tree_host_id_);
-  }
-
-  msg->AppendRawProtoBytes(unknown_fields_.data(), unknown_fields_.size());
-}
-
-}  // namespace perfetto
-}  // namespace protos
-}  // namespace gen
-#if defined(__GNUC__) || defined(__clang__)
-#pragma GCC diagnostic pop
-#endif
-// gen_amalgamated begin source: gen/protos/perfetto/trace/track_event/chrome_histogram_sample.gen.cc
-// gen_amalgamated begin header: gen/protos/perfetto/trace/track_event/chrome_histogram_sample.gen.h
-// DO NOT EDIT. Autogenerated by Perfetto cppgen_plugin
-#ifndef PERFETTO_PROTOS_PROTOS_PERFETTO_TRACE_TRACK_EVENT_CHROME_HISTOGRAM_SAMPLE_PROTO_CPP_H_
-#define PERFETTO_PROTOS_PROTOS_PERFETTO_TRACE_TRACK_EVENT_CHROME_HISTOGRAM_SAMPLE_PROTO_CPP_H_
-
-#include <stdint.h>
-#include <bitset>
-#include <vector>
-#include <string>
-#include <type_traits>
-
-// gen_amalgamated expanded: #include "perfetto/protozero/cpp_message_obj.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/copyable_ptr.h"
-// gen_amalgamated expanded: #include "perfetto/base/export.h"
-
-namespace perfetto {
-namespace protos {
-namespace gen {
-class ChromeHistogramSample;
-class HistogramName;
-}  // namespace perfetto
-}  // namespace protos
-}  // namespace gen
-
-namespace protozero {
-class Message;
-}  // namespace protozero
-
-namespace perfetto {
-namespace protos {
-namespace gen {
-
-class PERFETTO_EXPORT ChromeHistogramSample : public ::protozero::CppMessageObj {
- public:
-  enum FieldNumbers {
-    kNameHashFieldNumber = 1,
-    kNameFieldNumber = 2,
-    kSampleFieldNumber = 3,
-    kNameIidFieldNumber = 4,
-  };
-
-  ChromeHistogramSample();
-  ~ChromeHistogramSample() override;
-  ChromeHistogramSample(ChromeHistogramSample&&) noexcept;
-  ChromeHistogramSample& operator=(ChromeHistogramSample&&);
-  ChromeHistogramSample(const ChromeHistogramSample&);
-  ChromeHistogramSample& operator=(const ChromeHistogramSample&);
-  bool operator==(const ChromeHistogramSample&) const;
-  bool operator!=(const ChromeHistogramSample& other) const { return !(*this == other); }
-
-  bool ParseFromArray(const void*, size_t) override;
-  std::string SerializeAsString() const override;
-  std::vector<uint8_t> SerializeAsArray() const override;
-  void Serialize(::protozero::Message*) const;
-
-  bool has_name_hash() const { return _has_field_[1]; }
-  uint64_t name_hash() const { return name_hash_; }
-  void set_name_hash(uint64_t value) { name_hash_ = value; _has_field_.set(1); }
-
-  bool has_name() const { return _has_field_[2]; }
-  const std::string& name() const { return name_; }
-  void set_name(const std::string& value) { name_ = value; _has_field_.set(2); }
-
-  bool has_sample() const { return _has_field_[3]; }
-  int64_t sample() const { return sample_; }
-  void set_sample(int64_t value) { sample_ = value; _has_field_.set(3); }
-
-  bool has_name_iid() const { return _has_field_[4]; }
-  uint64_t name_iid() const { return name_iid_; }
-  void set_name_iid(uint64_t value) { name_iid_ = value; _has_field_.set(4); }
-
- private:
-  uint64_t name_hash_{};
-  std::string name_{};
-  int64_t sample_{};
-  uint64_t name_iid_{};
-
-  // Allows to preserve unknown protobuf fields for compatibility
-  // with future versions of .proto files.
-  std::string unknown_fields_;
-
-  std::bitset<5> _has_field_{};
-};
-
-
-class PERFETTO_EXPORT HistogramName : public ::protozero::CppMessageObj {
- public:
-  enum FieldNumbers {
-    kIidFieldNumber = 1,
-    kNameFieldNumber = 2,
-  };
-
-  HistogramName();
-  ~HistogramName() override;
-  HistogramName(HistogramName&&) noexcept;
-  HistogramName& operator=(HistogramName&&);
-  HistogramName(const HistogramName&);
-  HistogramName& operator=(const HistogramName&);
-  bool operator==(const HistogramName&) const;
-  bool operator!=(const HistogramName& other) const { return !(*this == other); }
-
-  bool ParseFromArray(const void*, size_t) override;
-  std::string SerializeAsString() const override;
-  std::vector<uint8_t> SerializeAsArray() const override;
-  void Serialize(::protozero::Message*) const;
-
-  bool has_iid() const { return _has_field_[1]; }
-  uint64_t iid() const { return iid_; }
-  void set_iid(uint64_t value) { iid_ = value; _has_field_.set(1); }
-
-  bool has_name() const { return _has_field_[2]; }
-  const std::string& name() const { return name_; }
-  void set_name(const std::string& value) { name_ = value; _has_field_.set(2); }
-
- private:
-  uint64_t iid_{};
-  std::string name_{};
-
-  // Allows to preserve unknown protobuf fields for compatibility
-  // with future versions of .proto files.
-  std::string unknown_fields_;
-
-  std::bitset<3> _has_field_{};
-};
-
-}  // namespace perfetto
-}  // namespace protos
-}  // namespace gen
-
-#endif  // PERFETTO_PROTOS_PROTOS_PERFETTO_TRACE_TRACK_EVENT_CHROME_HISTOGRAM_SAMPLE_PROTO_CPP_H_
-// gen_amalgamated expanded: #include "perfetto/protozero/message.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/packed_repeated_fields.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/proto_decoder.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/scattered_heap_buffer.h"
-// DO NOT EDIT. Autogenerated by Perfetto cppgen_plugin
-#if defined(__GNUC__) || defined(__clang__)
-#pragma GCC diagnostic push
-#pragma GCC diagnostic ignored "-Wfloat-equal"
-#endif
-// gen_amalgamated expanded: #include "protos/perfetto/trace/track_event/chrome_histogram_sample.gen.h"
-
-namespace perfetto {
-namespace protos {
-namespace gen {
-
-ChromeHistogramSample::ChromeHistogramSample() = default;
-ChromeHistogramSample::~ChromeHistogramSample() = default;
-ChromeHistogramSample::ChromeHistogramSample(const ChromeHistogramSample&) = default;
-ChromeHistogramSample& ChromeHistogramSample::operator=(const ChromeHistogramSample&) = default;
-ChromeHistogramSample::ChromeHistogramSample(ChromeHistogramSample&&) noexcept = default;
-ChromeHistogramSample& ChromeHistogramSample::operator=(ChromeHistogramSample&&) = default;
-
-bool ChromeHistogramSample::operator==(const ChromeHistogramSample& other) const {
-  return unknown_fields_ == other.unknown_fields_
-   && name_hash_ == other.name_hash_
-   && name_ == other.name_
-   && sample_ == other.sample_
-   && name_iid_ == other.name_iid_;
-}
-
-bool ChromeHistogramSample::ParseFromArray(const void* raw, size_t size) {
-  unknown_fields_.clear();
-  bool packed_error = false;
-
-  ::protozero::ProtoDecoder dec(raw, size);
-  for (auto field = dec.ReadField(); field.valid(); field = dec.ReadField()) {
-    if (field.id() < _has_field_.size()) {
-      _has_field_.set(field.id());
-    }
-    switch (field.id()) {
-      case 1 /* name_hash */:
-        field.get(&name_hash_);
-        break;
-      case 2 /* name */:
-        field.get(&name_);
-        break;
-      case 3 /* sample */:
-        field.get(&sample_);
-        break;
-      case 4 /* name_iid */:
-        field.get(&name_iid_);
-        break;
-      default:
-        field.SerializeAndAppendTo(&unknown_fields_);
-        break;
-    }
-  }
-  return !packed_error && !dec.bytes_left();
-}
-
-std::string ChromeHistogramSample::SerializeAsString() const {
-  ::protozero::HeapBuffered<::protozero::Message> msg;
-  Serialize(msg.get());
-  return msg.SerializeAsString();
-}
-
-std::vector<uint8_t> ChromeHistogramSample::SerializeAsArray() const {
-  ::protozero::HeapBuffered<::protozero::Message> msg;
-  Serialize(msg.get());
-  return msg.SerializeAsArray();
-}
-
-void ChromeHistogramSample::Serialize(::protozero::Message* msg) const {
-  // Field 1: name_hash
-  if (_has_field_[1]) {
-    msg->AppendVarInt(1, name_hash_);
-  }
-
-  // Field 2: name
-  if (_has_field_[2]) {
-    msg->AppendString(2, name_);
-  }
-
-  // Field 3: sample
-  if (_has_field_[3]) {
-    msg->AppendVarInt(3, sample_);
-  }
-
-  // Field 4: name_iid
-  if (_has_field_[4]) {
-    msg->AppendVarInt(4, name_iid_);
-  }
-
-  msg->AppendRawProtoBytes(unknown_fields_.data(), unknown_fields_.size());
-}
-
-
-HistogramName::HistogramName() = default;
-HistogramName::~HistogramName() = default;
-HistogramName::HistogramName(const HistogramName&) = default;
-HistogramName& HistogramName::operator=(const HistogramName&) = default;
-HistogramName::HistogramName(HistogramName&&) noexcept = default;
-HistogramName& HistogramName::operator=(HistogramName&&) = default;
-
-bool HistogramName::operator==(const HistogramName& other) const {
-  return unknown_fields_ == other.unknown_fields_
-   && iid_ == other.iid_
-   && name_ == other.name_;
-}
-
-bool HistogramName::ParseFromArray(const void* raw, size_t size) {
-  unknown_fields_.clear();
-  bool packed_error = false;
-
-  ::protozero::ProtoDecoder dec(raw, size);
-  for (auto field = dec.ReadField(); field.valid(); field = dec.ReadField()) {
-    if (field.id() < _has_field_.size()) {
-      _has_field_.set(field.id());
-    }
-    switch (field.id()) {
-      case 1 /* iid */:
-        field.get(&iid_);
-        break;
-      case 2 /* name */:
-        field.get(&name_);
-        break;
-      default:
-        field.SerializeAndAppendTo(&unknown_fields_);
-        break;
-    }
-  }
-  return !packed_error && !dec.bytes_left();
-}
-
-std::string HistogramName::SerializeAsString() const {
-  ::protozero::HeapBuffered<::protozero::Message> msg;
-  Serialize(msg.get());
-  return msg.SerializeAsString();
-}
-
-std::vector<uint8_t> HistogramName::SerializeAsArray() const {
-  ::protozero::HeapBuffered<::protozero::Message> msg;
-  Serialize(msg.get());
-  return msg.SerializeAsArray();
-}
-
-void HistogramName::Serialize(::protozero::Message* msg) const {
-  // Field 1: iid
-  if (_has_field_[1]) {
-    msg->AppendVarInt(1, iid_);
-  }
-
-  // Field 2: name
-  if (_has_field_[2]) {
-    msg->AppendString(2, name_);
-  }
-
-  msg->AppendRawProtoBytes(unknown_fields_.data(), unknown_fields_.size());
-}
-
-}  // namespace perfetto
-}  // namespace protos
-}  // namespace gen
-#if defined(__GNUC__) || defined(__clang__)
-#pragma GCC diagnostic pop
-#endif
-// gen_amalgamated begin source: gen/protos/perfetto/trace/track_event/chrome_keyed_service.gen.cc
-// gen_amalgamated begin header: gen/protos/perfetto/trace/track_event/chrome_keyed_service.gen.h
-// DO NOT EDIT. Autogenerated by Perfetto cppgen_plugin
-#ifndef PERFETTO_PROTOS_PROTOS_PERFETTO_TRACE_TRACK_EVENT_CHROME_KEYED_SERVICE_PROTO_CPP_H_
-#define PERFETTO_PROTOS_PROTOS_PERFETTO_TRACE_TRACK_EVENT_CHROME_KEYED_SERVICE_PROTO_CPP_H_
-
-#include <stdint.h>
-#include <bitset>
-#include <vector>
-#include <string>
-#include <type_traits>
-
-// gen_amalgamated expanded: #include "perfetto/protozero/cpp_message_obj.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/copyable_ptr.h"
-// gen_amalgamated expanded: #include "perfetto/base/export.h"
-
-namespace perfetto {
-namespace protos {
-namespace gen {
-class ChromeKeyedService;
-}  // namespace perfetto
-}  // namespace protos
-}  // namespace gen
-
-namespace protozero {
-class Message;
-}  // namespace protozero
-
-namespace perfetto {
-namespace protos {
-namespace gen {
-
-class PERFETTO_EXPORT ChromeKeyedService : public ::protozero::CppMessageObj {
- public:
-  enum FieldNumbers {
-    kNameFieldNumber = 1,
-  };
-
-  ChromeKeyedService();
-  ~ChromeKeyedService() override;
-  ChromeKeyedService(ChromeKeyedService&&) noexcept;
-  ChromeKeyedService& operator=(ChromeKeyedService&&);
-  ChromeKeyedService(const ChromeKeyedService&);
-  ChromeKeyedService& operator=(const ChromeKeyedService&);
-  bool operator==(const ChromeKeyedService&) const;
-  bool operator!=(const ChromeKeyedService& other) const { return !(*this == other); }
-
-  bool ParseFromArray(const void*, size_t) override;
-  std::string SerializeAsString() const override;
-  std::vector<uint8_t> SerializeAsArray() const override;
-  void Serialize(::protozero::Message*) const;
-
-  bool has_name() const { return _has_field_[1]; }
-  const std::string& name() const { return name_; }
-  void set_name(const std::string& value) { name_ = value; _has_field_.set(1); }
-
- private:
-  std::string name_{};
-
-  // Allows to preserve unknown protobuf fields for compatibility
-  // with future versions of .proto files.
-  std::string unknown_fields_;
-
-  std::bitset<2> _has_field_{};
-};
-
-}  // namespace perfetto
-}  // namespace protos
-}  // namespace gen
-
-#endif  // PERFETTO_PROTOS_PROTOS_PERFETTO_TRACE_TRACK_EVENT_CHROME_KEYED_SERVICE_PROTO_CPP_H_
-// gen_amalgamated expanded: #include "perfetto/protozero/message.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/packed_repeated_fields.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/proto_decoder.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/scattered_heap_buffer.h"
-// DO NOT EDIT. Autogenerated by Perfetto cppgen_plugin
-#if defined(__GNUC__) || defined(__clang__)
-#pragma GCC diagnostic push
-#pragma GCC diagnostic ignored "-Wfloat-equal"
-#endif
-// gen_amalgamated expanded: #include "protos/perfetto/trace/track_event/chrome_keyed_service.gen.h"
-
-namespace perfetto {
-namespace protos {
-namespace gen {
-
-ChromeKeyedService::ChromeKeyedService() = default;
-ChromeKeyedService::~ChromeKeyedService() = default;
-ChromeKeyedService::ChromeKeyedService(const ChromeKeyedService&) = default;
-ChromeKeyedService& ChromeKeyedService::operator=(const ChromeKeyedService&) = default;
-ChromeKeyedService::ChromeKeyedService(ChromeKeyedService&&) noexcept = default;
-ChromeKeyedService& ChromeKeyedService::operator=(ChromeKeyedService&&) = default;
-
-bool ChromeKeyedService::operator==(const ChromeKeyedService& other) const {
-  return unknown_fields_ == other.unknown_fields_
-   && name_ == other.name_;
-}
-
-bool ChromeKeyedService::ParseFromArray(const void* raw, size_t size) {
-  unknown_fields_.clear();
-  bool packed_error = false;
-
-  ::protozero::ProtoDecoder dec(raw, size);
-  for (auto field = dec.ReadField(); field.valid(); field = dec.ReadField()) {
-    if (field.id() < _has_field_.size()) {
-      _has_field_.set(field.id());
-    }
-    switch (field.id()) {
-      case 1 /* name */:
-        field.get(&name_);
-        break;
-      default:
-        field.SerializeAndAppendTo(&unknown_fields_);
-        break;
-    }
-  }
-  return !packed_error && !dec.bytes_left();
-}
-
-std::string ChromeKeyedService::SerializeAsString() const {
-  ::protozero::HeapBuffered<::protozero::Message> msg;
-  Serialize(msg.get());
-  return msg.SerializeAsString();
-}
-
-std::vector<uint8_t> ChromeKeyedService::SerializeAsArray() const {
-  ::protozero::HeapBuffered<::protozero::Message> msg;
-  Serialize(msg.get());
-  return msg.SerializeAsArray();
-}
-
-void ChromeKeyedService::Serialize(::protozero::Message* msg) const {
-  // Field 1: name
-  if (_has_field_[1]) {
-    msg->AppendString(1, name_);
-  }
-
-  msg->AppendRawProtoBytes(unknown_fields_.data(), unknown_fields_.size());
-}
-
-}  // namespace perfetto
-}  // namespace protos
-}  // namespace gen
-#if defined(__GNUC__) || defined(__clang__)
-#pragma GCC diagnostic pop
-#endif
-// gen_amalgamated begin source: gen/protos/perfetto/trace/track_event/chrome_latency_info.gen.cc
-// gen_amalgamated begin header: gen/protos/perfetto/trace/track_event/chrome_latency_info.gen.h
-// DO NOT EDIT. Autogenerated by Perfetto cppgen_plugin
-#ifndef PERFETTO_PROTOS_PROTOS_PERFETTO_TRACE_TRACK_EVENT_CHROME_LATENCY_INFO_PROTO_CPP_H_
-#define PERFETTO_PROTOS_PROTOS_PERFETTO_TRACE_TRACK_EVENT_CHROME_LATENCY_INFO_PROTO_CPP_H_
-
-#include <stdint.h>
-#include <bitset>
-#include <vector>
-#include <string>
-#include <type_traits>
-
-// gen_amalgamated expanded: #include "perfetto/protozero/cpp_message_obj.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/copyable_ptr.h"
-// gen_amalgamated expanded: #include "perfetto/base/export.h"
-
-namespace perfetto {
-namespace protos {
-namespace gen {
-class ChromeLatencyInfo;
-class ChromeLatencyInfo_ComponentInfo;
-enum ChromeLatencyInfo_Step : int;
-enum ChromeLatencyInfo_LatencyComponentType : int;
-}  // namespace perfetto
-}  // namespace protos
-}  // namespace gen
-
-namespace protozero {
-class Message;
-}  // namespace protozero
-
-namespace perfetto {
-namespace protos {
-namespace gen {
-enum ChromeLatencyInfo_Step : int {
-  ChromeLatencyInfo_Step_STEP_UNSPECIFIED = 0,
-  ChromeLatencyInfo_Step_STEP_SEND_INPUT_EVENT_UI = 3,
-  ChromeLatencyInfo_Step_STEP_HANDLE_INPUT_EVENT_IMPL = 5,
-  ChromeLatencyInfo_Step_STEP_DID_HANDLE_INPUT_AND_OVERSCROLL = 8,
-  ChromeLatencyInfo_Step_STEP_HANDLE_INPUT_EVENT_MAIN = 4,
-  ChromeLatencyInfo_Step_STEP_MAIN_THREAD_SCROLL_UPDATE = 2,
-  ChromeLatencyInfo_Step_STEP_HANDLE_INPUT_EVENT_MAIN_COMMIT = 1,
-  ChromeLatencyInfo_Step_STEP_HANDLED_INPUT_EVENT_MAIN_OR_IMPL = 9,
-  ChromeLatencyInfo_Step_STEP_HANDLED_INPUT_EVENT_IMPL = 10,
-  ChromeLatencyInfo_Step_STEP_SWAP_BUFFERS = 6,
-  ChromeLatencyInfo_Step_STEP_DRAW_AND_SWAP = 7,
-  ChromeLatencyInfo_Step_STEP_FINISHED_SWAP_BUFFERS = 11,
-};
-enum ChromeLatencyInfo_LatencyComponentType : int {
-  ChromeLatencyInfo_LatencyComponentType_COMPONENT_UNSPECIFIED = 0,
-  ChromeLatencyInfo_LatencyComponentType_COMPONENT_INPUT_EVENT_LATENCY_BEGIN_RWH = 1,
-  ChromeLatencyInfo_LatencyComponentType_COMPONENT_INPUT_EVENT_LATENCY_SCROLL_UPDATE_ORIGINAL = 2,
-  ChromeLatencyInfo_LatencyComponentType_COMPONENT_INPUT_EVENT_LATENCY_FIRST_SCROLL_UPDATE_ORIGINAL = 3,
-  ChromeLatencyInfo_LatencyComponentType_COMPONENT_INPUT_EVENT_LATENCY_ORIGINAL = 4,
-  ChromeLatencyInfo_LatencyComponentType_COMPONENT_INPUT_EVENT_LATENCY_UI = 5,
-  ChromeLatencyInfo_LatencyComponentType_COMPONENT_INPUT_EVENT_LATENCY_RENDERER_MAIN = 6,
-  ChromeLatencyInfo_LatencyComponentType_COMPONENT_INPUT_EVENT_LATENCY_RENDERING_SCHEDULED_MAIN = 7,
-  ChromeLatencyInfo_LatencyComponentType_COMPONENT_INPUT_EVENT_LATENCY_RENDERING_SCHEDULED_IMPL = 8,
-  ChromeLatencyInfo_LatencyComponentType_COMPONENT_INPUT_EVENT_LATENCY_SCROLL_UPDATE_LAST_EVENT = 9,
-  ChromeLatencyInfo_LatencyComponentType_COMPONENT_INPUT_EVENT_LATENCY_ACK_RWH = 10,
-  ChromeLatencyInfo_LatencyComponentType_COMPONENT_INPUT_EVENT_LATENCY_RENDERER_SWAP = 11,
-  ChromeLatencyInfo_LatencyComponentType_COMPONENT_DISPLAY_COMPOSITOR_RECEIVED_FRAME = 12,
-  ChromeLatencyInfo_LatencyComponentType_COMPONENT_INPUT_EVENT_GPU_SWAP_BUFFER = 13,
-  ChromeLatencyInfo_LatencyComponentType_COMPONENT_INPUT_EVENT_LATENCY_FRAME_SWAP = 14,
-};
-
-class PERFETTO_EXPORT ChromeLatencyInfo : public ::protozero::CppMessageObj {
- public:
-  using ComponentInfo = ChromeLatencyInfo_ComponentInfo;
-  using Step = ChromeLatencyInfo_Step;
-  static constexpr auto STEP_UNSPECIFIED = ChromeLatencyInfo_Step_STEP_UNSPECIFIED;
-  static constexpr auto STEP_SEND_INPUT_EVENT_UI = ChromeLatencyInfo_Step_STEP_SEND_INPUT_EVENT_UI;
-  static constexpr auto STEP_HANDLE_INPUT_EVENT_IMPL = ChromeLatencyInfo_Step_STEP_HANDLE_INPUT_EVENT_IMPL;
-  static constexpr auto STEP_DID_HANDLE_INPUT_AND_OVERSCROLL = ChromeLatencyInfo_Step_STEP_DID_HANDLE_INPUT_AND_OVERSCROLL;
-  static constexpr auto STEP_HANDLE_INPUT_EVENT_MAIN = ChromeLatencyInfo_Step_STEP_HANDLE_INPUT_EVENT_MAIN;
-  static constexpr auto STEP_MAIN_THREAD_SCROLL_UPDATE = ChromeLatencyInfo_Step_STEP_MAIN_THREAD_SCROLL_UPDATE;
-  static constexpr auto STEP_HANDLE_INPUT_EVENT_MAIN_COMMIT = ChromeLatencyInfo_Step_STEP_HANDLE_INPUT_EVENT_MAIN_COMMIT;
-  static constexpr auto STEP_HANDLED_INPUT_EVENT_MAIN_OR_IMPL = ChromeLatencyInfo_Step_STEP_HANDLED_INPUT_EVENT_MAIN_OR_IMPL;
-  static constexpr auto STEP_HANDLED_INPUT_EVENT_IMPL = ChromeLatencyInfo_Step_STEP_HANDLED_INPUT_EVENT_IMPL;
-  static constexpr auto STEP_SWAP_BUFFERS = ChromeLatencyInfo_Step_STEP_SWAP_BUFFERS;
-  static constexpr auto STEP_DRAW_AND_SWAP = ChromeLatencyInfo_Step_STEP_DRAW_AND_SWAP;
-  static constexpr auto STEP_FINISHED_SWAP_BUFFERS = ChromeLatencyInfo_Step_STEP_FINISHED_SWAP_BUFFERS;
-  static constexpr auto Step_MIN = ChromeLatencyInfo_Step_STEP_UNSPECIFIED;
-  static constexpr auto Step_MAX = ChromeLatencyInfo_Step_STEP_FINISHED_SWAP_BUFFERS;
-  using LatencyComponentType = ChromeLatencyInfo_LatencyComponentType;
-  static constexpr auto COMPONENT_UNSPECIFIED = ChromeLatencyInfo_LatencyComponentType_COMPONENT_UNSPECIFIED;
-  static constexpr auto COMPONENT_INPUT_EVENT_LATENCY_BEGIN_RWH = ChromeLatencyInfo_LatencyComponentType_COMPONENT_INPUT_EVENT_LATENCY_BEGIN_RWH;
-  static constexpr auto COMPONENT_INPUT_EVENT_LATENCY_SCROLL_UPDATE_ORIGINAL = ChromeLatencyInfo_LatencyComponentType_COMPONENT_INPUT_EVENT_LATENCY_SCROLL_UPDATE_ORIGINAL;
-  static constexpr auto COMPONENT_INPUT_EVENT_LATENCY_FIRST_SCROLL_UPDATE_ORIGINAL = ChromeLatencyInfo_LatencyComponentType_COMPONENT_INPUT_EVENT_LATENCY_FIRST_SCROLL_UPDATE_ORIGINAL;
-  static constexpr auto COMPONENT_INPUT_EVENT_LATENCY_ORIGINAL = ChromeLatencyInfo_LatencyComponentType_COMPONENT_INPUT_EVENT_LATENCY_ORIGINAL;
-  static constexpr auto COMPONENT_INPUT_EVENT_LATENCY_UI = ChromeLatencyInfo_LatencyComponentType_COMPONENT_INPUT_EVENT_LATENCY_UI;
-  static constexpr auto COMPONENT_INPUT_EVENT_LATENCY_RENDERER_MAIN = ChromeLatencyInfo_LatencyComponentType_COMPONENT_INPUT_EVENT_LATENCY_RENDERER_MAIN;
-  static constexpr auto COMPONENT_INPUT_EVENT_LATENCY_RENDERING_SCHEDULED_MAIN = ChromeLatencyInfo_LatencyComponentType_COMPONENT_INPUT_EVENT_LATENCY_RENDERING_SCHEDULED_MAIN;
-  static constexpr auto COMPONENT_INPUT_EVENT_LATENCY_RENDERING_SCHEDULED_IMPL = ChromeLatencyInfo_LatencyComponentType_COMPONENT_INPUT_EVENT_LATENCY_RENDERING_SCHEDULED_IMPL;
-  static constexpr auto COMPONENT_INPUT_EVENT_LATENCY_SCROLL_UPDATE_LAST_EVENT = ChromeLatencyInfo_LatencyComponentType_COMPONENT_INPUT_EVENT_LATENCY_SCROLL_UPDATE_LAST_EVENT;
-  static constexpr auto COMPONENT_INPUT_EVENT_LATENCY_ACK_RWH = ChromeLatencyInfo_LatencyComponentType_COMPONENT_INPUT_EVENT_LATENCY_ACK_RWH;
-  static constexpr auto COMPONENT_INPUT_EVENT_LATENCY_RENDERER_SWAP = ChromeLatencyInfo_LatencyComponentType_COMPONENT_INPUT_EVENT_LATENCY_RENDERER_SWAP;
-  static constexpr auto COMPONENT_DISPLAY_COMPOSITOR_RECEIVED_FRAME = ChromeLatencyInfo_LatencyComponentType_COMPONENT_DISPLAY_COMPOSITOR_RECEIVED_FRAME;
-  static constexpr auto COMPONENT_INPUT_EVENT_GPU_SWAP_BUFFER = ChromeLatencyInfo_LatencyComponentType_COMPONENT_INPUT_EVENT_GPU_SWAP_BUFFER;
-  static constexpr auto COMPONENT_INPUT_EVENT_LATENCY_FRAME_SWAP = ChromeLatencyInfo_LatencyComponentType_COMPONENT_INPUT_EVENT_LATENCY_FRAME_SWAP;
-  static constexpr auto LatencyComponentType_MIN = ChromeLatencyInfo_LatencyComponentType_COMPONENT_UNSPECIFIED;
-  static constexpr auto LatencyComponentType_MAX = ChromeLatencyInfo_LatencyComponentType_COMPONENT_INPUT_EVENT_LATENCY_FRAME_SWAP;
-  enum FieldNumbers {
-    kTraceIdFieldNumber = 1,
-    kStepFieldNumber = 2,
-    kFrameTreeNodeIdFieldNumber = 3,
-    kComponentInfoFieldNumber = 4,
-    kIsCoalescedFieldNumber = 5,
-    kGestureScrollIdFieldNumber = 6,
-  };
-
-  ChromeLatencyInfo();
-  ~ChromeLatencyInfo() override;
-  ChromeLatencyInfo(ChromeLatencyInfo&&) noexcept;
-  ChromeLatencyInfo& operator=(ChromeLatencyInfo&&);
-  ChromeLatencyInfo(const ChromeLatencyInfo&);
-  ChromeLatencyInfo& operator=(const ChromeLatencyInfo&);
-  bool operator==(const ChromeLatencyInfo&) const;
-  bool operator!=(const ChromeLatencyInfo& other) const { return !(*this == other); }
-
-  bool ParseFromArray(const void*, size_t) override;
-  std::string SerializeAsString() const override;
-  std::vector<uint8_t> SerializeAsArray() const override;
-  void Serialize(::protozero::Message*) const;
-
-  bool has_trace_id() const { return _has_field_[1]; }
-  int64_t trace_id() const { return trace_id_; }
-  void set_trace_id(int64_t value) { trace_id_ = value; _has_field_.set(1); }
-
-  bool has_step() const { return _has_field_[2]; }
-  ChromeLatencyInfo_Step step() const { return step_; }
-  void set_step(ChromeLatencyInfo_Step value) { step_ = value; _has_field_.set(2); }
-
-  bool has_frame_tree_node_id() const { return _has_field_[3]; }
-  int32_t frame_tree_node_id() const { return frame_tree_node_id_; }
-  void set_frame_tree_node_id(int32_t value) { frame_tree_node_id_ = value; _has_field_.set(3); }
-
-  const std::vector<ChromeLatencyInfo_ComponentInfo>& component_info() const { return component_info_; }
-  std::vector<ChromeLatencyInfo_ComponentInfo>* mutable_component_info() { return &component_info_; }
-  int component_info_size() const;
-  void clear_component_info();
-  ChromeLatencyInfo_ComponentInfo* add_component_info();
-
-  bool has_is_coalesced() const { return _has_field_[5]; }
-  bool is_coalesced() const { return is_coalesced_; }
-  void set_is_coalesced(bool value) { is_coalesced_ = value; _has_field_.set(5); }
-
-  bool has_gesture_scroll_id() const { return _has_field_[6]; }
-  int64_t gesture_scroll_id() const { return gesture_scroll_id_; }
-  void set_gesture_scroll_id(int64_t value) { gesture_scroll_id_ = value; _has_field_.set(6); }
-
- private:
-  int64_t trace_id_{};
-  ChromeLatencyInfo_Step step_{};
-  int32_t frame_tree_node_id_{};
-  std::vector<ChromeLatencyInfo_ComponentInfo> component_info_;
-  bool is_coalesced_{};
-  int64_t gesture_scroll_id_{};
-
-  // Allows to preserve unknown protobuf fields for compatibility
-  // with future versions of .proto files.
-  std::string unknown_fields_;
-
-  std::bitset<7> _has_field_{};
-};
-
-
-class PERFETTO_EXPORT ChromeLatencyInfo_ComponentInfo : public ::protozero::CppMessageObj {
- public:
-  enum FieldNumbers {
-    kComponentTypeFieldNumber = 1,
-    kTimeUsFieldNumber = 2,
-  };
-
-  ChromeLatencyInfo_ComponentInfo();
-  ~ChromeLatencyInfo_ComponentInfo() override;
-  ChromeLatencyInfo_ComponentInfo(ChromeLatencyInfo_ComponentInfo&&) noexcept;
-  ChromeLatencyInfo_ComponentInfo& operator=(ChromeLatencyInfo_ComponentInfo&&);
-  ChromeLatencyInfo_ComponentInfo(const ChromeLatencyInfo_ComponentInfo&);
-  ChromeLatencyInfo_ComponentInfo& operator=(const ChromeLatencyInfo_ComponentInfo&);
-  bool operator==(const ChromeLatencyInfo_ComponentInfo&) const;
-  bool operator!=(const ChromeLatencyInfo_ComponentInfo& other) const { return !(*this == other); }
-
-  bool ParseFromArray(const void*, size_t) override;
-  std::string SerializeAsString() const override;
-  std::vector<uint8_t> SerializeAsArray() const override;
-  void Serialize(::protozero::Message*) const;
-
-  bool has_component_type() const { return _has_field_[1]; }
-  ChromeLatencyInfo_LatencyComponentType component_type() const { return component_type_; }
-  void set_component_type(ChromeLatencyInfo_LatencyComponentType value) { component_type_ = value; _has_field_.set(1); }
-
-  bool has_time_us() const { return _has_field_[2]; }
-  uint64_t time_us() const { return time_us_; }
-  void set_time_us(uint64_t value) { time_us_ = value; _has_field_.set(2); }
-
- private:
-  ChromeLatencyInfo_LatencyComponentType component_type_{};
-  uint64_t time_us_{};
-
-  // Allows to preserve unknown protobuf fields for compatibility
-  // with future versions of .proto files.
-  std::string unknown_fields_;
-
-  std::bitset<3> _has_field_{};
-};
-
-}  // namespace perfetto
-}  // namespace protos
-}  // namespace gen
-
-#endif  // PERFETTO_PROTOS_PROTOS_PERFETTO_TRACE_TRACK_EVENT_CHROME_LATENCY_INFO_PROTO_CPP_H_
-// gen_amalgamated expanded: #include "perfetto/protozero/message.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/packed_repeated_fields.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/proto_decoder.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/scattered_heap_buffer.h"
-// DO NOT EDIT. Autogenerated by Perfetto cppgen_plugin
-#if defined(__GNUC__) || defined(__clang__)
-#pragma GCC diagnostic push
-#pragma GCC diagnostic ignored "-Wfloat-equal"
-#endif
-// gen_amalgamated expanded: #include "protos/perfetto/trace/track_event/chrome_latency_info.gen.h"
-
-namespace perfetto {
-namespace protos {
-namespace gen {
-
-ChromeLatencyInfo::ChromeLatencyInfo() = default;
-ChromeLatencyInfo::~ChromeLatencyInfo() = default;
-ChromeLatencyInfo::ChromeLatencyInfo(const ChromeLatencyInfo&) = default;
-ChromeLatencyInfo& ChromeLatencyInfo::operator=(const ChromeLatencyInfo&) = default;
-ChromeLatencyInfo::ChromeLatencyInfo(ChromeLatencyInfo&&) noexcept = default;
-ChromeLatencyInfo& ChromeLatencyInfo::operator=(ChromeLatencyInfo&&) = default;
-
-bool ChromeLatencyInfo::operator==(const ChromeLatencyInfo& other) const {
-  return unknown_fields_ == other.unknown_fields_
-   && trace_id_ == other.trace_id_
-   && step_ == other.step_
-   && frame_tree_node_id_ == other.frame_tree_node_id_
-   && component_info_ == other.component_info_
-   && is_coalesced_ == other.is_coalesced_
-   && gesture_scroll_id_ == other.gesture_scroll_id_;
-}
-
-int ChromeLatencyInfo::component_info_size() const { return static_cast<int>(component_info_.size()); }
-void ChromeLatencyInfo::clear_component_info() { component_info_.clear(); }
-ChromeLatencyInfo_ComponentInfo* ChromeLatencyInfo::add_component_info() { component_info_.emplace_back(); return &component_info_.back(); }
-bool ChromeLatencyInfo::ParseFromArray(const void* raw, size_t size) {
-  component_info_.clear();
-  unknown_fields_.clear();
-  bool packed_error = false;
-
-  ::protozero::ProtoDecoder dec(raw, size);
-  for (auto field = dec.ReadField(); field.valid(); field = dec.ReadField()) {
-    if (field.id() < _has_field_.size()) {
-      _has_field_.set(field.id());
-    }
-    switch (field.id()) {
-      case 1 /* trace_id */:
-        field.get(&trace_id_);
-        break;
-      case 2 /* step */:
-        field.get(&step_);
-        break;
-      case 3 /* frame_tree_node_id */:
-        field.get(&frame_tree_node_id_);
-        break;
-      case 4 /* component_info */:
-        component_info_.emplace_back();
-        component_info_.back().ParseFromArray(field.data(), field.size());
-        break;
-      case 5 /* is_coalesced */:
-        field.get(&is_coalesced_);
-        break;
-      case 6 /* gesture_scroll_id */:
-        field.get(&gesture_scroll_id_);
-        break;
-      default:
-        field.SerializeAndAppendTo(&unknown_fields_);
-        break;
-    }
-  }
-  return !packed_error && !dec.bytes_left();
-}
-
-std::string ChromeLatencyInfo::SerializeAsString() const {
-  ::protozero::HeapBuffered<::protozero::Message> msg;
-  Serialize(msg.get());
-  return msg.SerializeAsString();
-}
-
-std::vector<uint8_t> ChromeLatencyInfo::SerializeAsArray() const {
-  ::protozero::HeapBuffered<::protozero::Message> msg;
-  Serialize(msg.get());
-  return msg.SerializeAsArray();
-}
-
-void ChromeLatencyInfo::Serialize(::protozero::Message* msg) const {
-  // Field 1: trace_id
-  if (_has_field_[1]) {
-    msg->AppendVarInt(1, trace_id_);
-  }
-
-  // Field 2: step
-  if (_has_field_[2]) {
-    msg->AppendVarInt(2, step_);
-  }
-
-  // Field 3: frame_tree_node_id
-  if (_has_field_[3]) {
-    msg->AppendVarInt(3, frame_tree_node_id_);
-  }
-
-  // Field 4: component_info
-  for (auto& it : component_info_) {
-    it.Serialize(msg->BeginNestedMessage<::protozero::Message>(4));
-  }
-
-  // Field 5: is_coalesced
-  if (_has_field_[5]) {
-    msg->AppendTinyVarInt(5, is_coalesced_);
-  }
-
-  // Field 6: gesture_scroll_id
-  if (_has_field_[6]) {
-    msg->AppendVarInt(6, gesture_scroll_id_);
-  }
-
-  msg->AppendRawProtoBytes(unknown_fields_.data(), unknown_fields_.size());
-}
-
-
-ChromeLatencyInfo_ComponentInfo::ChromeLatencyInfo_ComponentInfo() = default;
-ChromeLatencyInfo_ComponentInfo::~ChromeLatencyInfo_ComponentInfo() = default;
-ChromeLatencyInfo_ComponentInfo::ChromeLatencyInfo_ComponentInfo(const ChromeLatencyInfo_ComponentInfo&) = default;
-ChromeLatencyInfo_ComponentInfo& ChromeLatencyInfo_ComponentInfo::operator=(const ChromeLatencyInfo_ComponentInfo&) = default;
-ChromeLatencyInfo_ComponentInfo::ChromeLatencyInfo_ComponentInfo(ChromeLatencyInfo_ComponentInfo&&) noexcept = default;
-ChromeLatencyInfo_ComponentInfo& ChromeLatencyInfo_ComponentInfo::operator=(ChromeLatencyInfo_ComponentInfo&&) = default;
-
-bool ChromeLatencyInfo_ComponentInfo::operator==(const ChromeLatencyInfo_ComponentInfo& other) const {
-  return unknown_fields_ == other.unknown_fields_
-   && component_type_ == other.component_type_
-   && time_us_ == other.time_us_;
-}
-
-bool ChromeLatencyInfo_ComponentInfo::ParseFromArray(const void* raw, size_t size) {
-  unknown_fields_.clear();
-  bool packed_error = false;
-
-  ::protozero::ProtoDecoder dec(raw, size);
-  for (auto field = dec.ReadField(); field.valid(); field = dec.ReadField()) {
-    if (field.id() < _has_field_.size()) {
-      _has_field_.set(field.id());
-    }
-    switch (field.id()) {
-      case 1 /* component_type */:
-        field.get(&component_type_);
-        break;
-      case 2 /* time_us */:
-        field.get(&time_us_);
-        break;
-      default:
-        field.SerializeAndAppendTo(&unknown_fields_);
-        break;
-    }
-  }
-  return !packed_error && !dec.bytes_left();
-}
-
-std::string ChromeLatencyInfo_ComponentInfo::SerializeAsString() const {
-  ::protozero::HeapBuffered<::protozero::Message> msg;
-  Serialize(msg.get());
-  return msg.SerializeAsString();
-}
-
-std::vector<uint8_t> ChromeLatencyInfo_ComponentInfo::SerializeAsArray() const {
-  ::protozero::HeapBuffered<::protozero::Message> msg;
-  Serialize(msg.get());
-  return msg.SerializeAsArray();
-}
-
-void ChromeLatencyInfo_ComponentInfo::Serialize(::protozero::Message* msg) const {
-  // Field 1: component_type
-  if (_has_field_[1]) {
-    msg->AppendVarInt(1, component_type_);
-  }
-
-  // Field 2: time_us
-  if (_has_field_[2]) {
-    msg->AppendVarInt(2, time_us_);
-  }
-
-  msg->AppendRawProtoBytes(unknown_fields_.data(), unknown_fields_.size());
-}
-
-}  // namespace perfetto
-}  // namespace protos
-}  // namespace gen
-#if defined(__GNUC__) || defined(__clang__)
-#pragma GCC diagnostic pop
-#endif
-// gen_amalgamated begin source: gen/protos/perfetto/trace/track_event/chrome_legacy_ipc.gen.cc
-// gen_amalgamated begin header: gen/protos/perfetto/trace/track_event/chrome_legacy_ipc.gen.h
-// DO NOT EDIT. Autogenerated by Perfetto cppgen_plugin
-#ifndef PERFETTO_PROTOS_PROTOS_PERFETTO_TRACE_TRACK_EVENT_CHROME_LEGACY_IPC_PROTO_CPP_H_
-#define PERFETTO_PROTOS_PROTOS_PERFETTO_TRACE_TRACK_EVENT_CHROME_LEGACY_IPC_PROTO_CPP_H_
-
-#include <stdint.h>
-#include <bitset>
-#include <vector>
-#include <string>
-#include <type_traits>
-
-// gen_amalgamated expanded: #include "perfetto/protozero/cpp_message_obj.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/copyable_ptr.h"
-// gen_amalgamated expanded: #include "perfetto/base/export.h"
-
-namespace perfetto {
-namespace protos {
-namespace gen {
-class ChromeLegacyIpc;
-enum ChromeLegacyIpc_MessageClass : int;
-}  // namespace perfetto
-}  // namespace protos
-}  // namespace gen
-
-namespace protozero {
-class Message;
-}  // namespace protozero
-
-namespace perfetto {
-namespace protos {
-namespace gen {
-enum ChromeLegacyIpc_MessageClass : int {
-  ChromeLegacyIpc_MessageClass_CLASS_UNSPECIFIED = 0,
-  ChromeLegacyIpc_MessageClass_CLASS_AUTOMATION = 1,
-  ChromeLegacyIpc_MessageClass_CLASS_FRAME = 2,
-  ChromeLegacyIpc_MessageClass_CLASS_PAGE = 3,
-  ChromeLegacyIpc_MessageClass_CLASS_VIEW = 4,
-  ChromeLegacyIpc_MessageClass_CLASS_WIDGET = 5,
-  ChromeLegacyIpc_MessageClass_CLASS_INPUT = 6,
-  ChromeLegacyIpc_MessageClass_CLASS_TEST = 7,
-  ChromeLegacyIpc_MessageClass_CLASS_WORKER = 8,
-  ChromeLegacyIpc_MessageClass_CLASS_NACL = 9,
-  ChromeLegacyIpc_MessageClass_CLASS_GPU_CHANNEL = 10,
-  ChromeLegacyIpc_MessageClass_CLASS_MEDIA = 11,
-  ChromeLegacyIpc_MessageClass_CLASS_PPAPI = 12,
-  ChromeLegacyIpc_MessageClass_CLASS_CHROME = 13,
-  ChromeLegacyIpc_MessageClass_CLASS_DRAG = 14,
-  ChromeLegacyIpc_MessageClass_CLASS_PRINT = 15,
-  ChromeLegacyIpc_MessageClass_CLASS_EXTENSION = 16,
-  ChromeLegacyIpc_MessageClass_CLASS_TEXT_INPUT_CLIENT = 17,
-  ChromeLegacyIpc_MessageClass_CLASS_BLINK_TEST = 18,
-  ChromeLegacyIpc_MessageClass_CLASS_ACCESSIBILITY = 19,
-  ChromeLegacyIpc_MessageClass_CLASS_PRERENDER = 20,
-  ChromeLegacyIpc_MessageClass_CLASS_CHROMOTING = 21,
-  ChromeLegacyIpc_MessageClass_CLASS_BROWSER_PLUGIN = 22,
-  ChromeLegacyIpc_MessageClass_CLASS_ANDROID_WEB_VIEW = 23,
-  ChromeLegacyIpc_MessageClass_CLASS_NACL_HOST = 24,
-  ChromeLegacyIpc_MessageClass_CLASS_ENCRYPTED_MEDIA = 25,
-  ChromeLegacyIpc_MessageClass_CLASS_CAST = 26,
-  ChromeLegacyIpc_MessageClass_CLASS_GIN_JAVA_BRIDGE = 27,
-  ChromeLegacyIpc_MessageClass_CLASS_CHROME_UTILITY_PRINTING = 28,
-  ChromeLegacyIpc_MessageClass_CLASS_OZONE_GPU = 29,
-  ChromeLegacyIpc_MessageClass_CLASS_WEB_TEST = 30,
-  ChromeLegacyIpc_MessageClass_CLASS_NETWORK_HINTS = 31,
-  ChromeLegacyIpc_MessageClass_CLASS_EXTENSIONS_GUEST_VIEW = 32,
-  ChromeLegacyIpc_MessageClass_CLASS_GUEST_VIEW = 33,
-  ChromeLegacyIpc_MessageClass_CLASS_MEDIA_PLAYER_DELEGATE = 34,
-  ChromeLegacyIpc_MessageClass_CLASS_EXTENSION_WORKER = 35,
-  ChromeLegacyIpc_MessageClass_CLASS_SUBRESOURCE_FILTER = 36,
-  ChromeLegacyIpc_MessageClass_CLASS_UNFREEZABLE_FRAME = 37,
-};
-
-class PERFETTO_EXPORT ChromeLegacyIpc : public ::protozero::CppMessageObj {
- public:
-  using MessageClass = ChromeLegacyIpc_MessageClass;
-  static constexpr auto CLASS_UNSPECIFIED = ChromeLegacyIpc_MessageClass_CLASS_UNSPECIFIED;
-  static constexpr auto CLASS_AUTOMATION = ChromeLegacyIpc_MessageClass_CLASS_AUTOMATION;
-  static constexpr auto CLASS_FRAME = ChromeLegacyIpc_MessageClass_CLASS_FRAME;
-  static constexpr auto CLASS_PAGE = ChromeLegacyIpc_MessageClass_CLASS_PAGE;
-  static constexpr auto CLASS_VIEW = ChromeLegacyIpc_MessageClass_CLASS_VIEW;
-  static constexpr auto CLASS_WIDGET = ChromeLegacyIpc_MessageClass_CLASS_WIDGET;
-  static constexpr auto CLASS_INPUT = ChromeLegacyIpc_MessageClass_CLASS_INPUT;
-  static constexpr auto CLASS_TEST = ChromeLegacyIpc_MessageClass_CLASS_TEST;
-  static constexpr auto CLASS_WORKER = ChromeLegacyIpc_MessageClass_CLASS_WORKER;
-  static constexpr auto CLASS_NACL = ChromeLegacyIpc_MessageClass_CLASS_NACL;
-  static constexpr auto CLASS_GPU_CHANNEL = ChromeLegacyIpc_MessageClass_CLASS_GPU_CHANNEL;
-  static constexpr auto CLASS_MEDIA = ChromeLegacyIpc_MessageClass_CLASS_MEDIA;
-  static constexpr auto CLASS_PPAPI = ChromeLegacyIpc_MessageClass_CLASS_PPAPI;
-  static constexpr auto CLASS_CHROME = ChromeLegacyIpc_MessageClass_CLASS_CHROME;
-  static constexpr auto CLASS_DRAG = ChromeLegacyIpc_MessageClass_CLASS_DRAG;
-  static constexpr auto CLASS_PRINT = ChromeLegacyIpc_MessageClass_CLASS_PRINT;
-  static constexpr auto CLASS_EXTENSION = ChromeLegacyIpc_MessageClass_CLASS_EXTENSION;
-  static constexpr auto CLASS_TEXT_INPUT_CLIENT = ChromeLegacyIpc_MessageClass_CLASS_TEXT_INPUT_CLIENT;
-  static constexpr auto CLASS_BLINK_TEST = ChromeLegacyIpc_MessageClass_CLASS_BLINK_TEST;
-  static constexpr auto CLASS_ACCESSIBILITY = ChromeLegacyIpc_MessageClass_CLASS_ACCESSIBILITY;
-  static constexpr auto CLASS_PRERENDER = ChromeLegacyIpc_MessageClass_CLASS_PRERENDER;
-  static constexpr auto CLASS_CHROMOTING = ChromeLegacyIpc_MessageClass_CLASS_CHROMOTING;
-  static constexpr auto CLASS_BROWSER_PLUGIN = ChromeLegacyIpc_MessageClass_CLASS_BROWSER_PLUGIN;
-  static constexpr auto CLASS_ANDROID_WEB_VIEW = ChromeLegacyIpc_MessageClass_CLASS_ANDROID_WEB_VIEW;
-  static constexpr auto CLASS_NACL_HOST = ChromeLegacyIpc_MessageClass_CLASS_NACL_HOST;
-  static constexpr auto CLASS_ENCRYPTED_MEDIA = ChromeLegacyIpc_MessageClass_CLASS_ENCRYPTED_MEDIA;
-  static constexpr auto CLASS_CAST = ChromeLegacyIpc_MessageClass_CLASS_CAST;
-  static constexpr auto CLASS_GIN_JAVA_BRIDGE = ChromeLegacyIpc_MessageClass_CLASS_GIN_JAVA_BRIDGE;
-  static constexpr auto CLASS_CHROME_UTILITY_PRINTING = ChromeLegacyIpc_MessageClass_CLASS_CHROME_UTILITY_PRINTING;
-  static constexpr auto CLASS_OZONE_GPU = ChromeLegacyIpc_MessageClass_CLASS_OZONE_GPU;
-  static constexpr auto CLASS_WEB_TEST = ChromeLegacyIpc_MessageClass_CLASS_WEB_TEST;
-  static constexpr auto CLASS_NETWORK_HINTS = ChromeLegacyIpc_MessageClass_CLASS_NETWORK_HINTS;
-  static constexpr auto CLASS_EXTENSIONS_GUEST_VIEW = ChromeLegacyIpc_MessageClass_CLASS_EXTENSIONS_GUEST_VIEW;
-  static constexpr auto CLASS_GUEST_VIEW = ChromeLegacyIpc_MessageClass_CLASS_GUEST_VIEW;
-  static constexpr auto CLASS_MEDIA_PLAYER_DELEGATE = ChromeLegacyIpc_MessageClass_CLASS_MEDIA_PLAYER_DELEGATE;
-  static constexpr auto CLASS_EXTENSION_WORKER = ChromeLegacyIpc_MessageClass_CLASS_EXTENSION_WORKER;
-  static constexpr auto CLASS_SUBRESOURCE_FILTER = ChromeLegacyIpc_MessageClass_CLASS_SUBRESOURCE_FILTER;
-  static constexpr auto CLASS_UNFREEZABLE_FRAME = ChromeLegacyIpc_MessageClass_CLASS_UNFREEZABLE_FRAME;
-  static constexpr auto MessageClass_MIN = ChromeLegacyIpc_MessageClass_CLASS_UNSPECIFIED;
-  static constexpr auto MessageClass_MAX = ChromeLegacyIpc_MessageClass_CLASS_UNFREEZABLE_FRAME;
-  enum FieldNumbers {
-    kMessageClassFieldNumber = 1,
-    kMessageLineFieldNumber = 2,
-  };
-
-  ChromeLegacyIpc();
-  ~ChromeLegacyIpc() override;
-  ChromeLegacyIpc(ChromeLegacyIpc&&) noexcept;
-  ChromeLegacyIpc& operator=(ChromeLegacyIpc&&);
-  ChromeLegacyIpc(const ChromeLegacyIpc&);
-  ChromeLegacyIpc& operator=(const ChromeLegacyIpc&);
-  bool operator==(const ChromeLegacyIpc&) const;
-  bool operator!=(const ChromeLegacyIpc& other) const { return !(*this == other); }
-
-  bool ParseFromArray(const void*, size_t) override;
-  std::string SerializeAsString() const override;
-  std::vector<uint8_t> SerializeAsArray() const override;
-  void Serialize(::protozero::Message*) const;
-
-  bool has_message_class() const { return _has_field_[1]; }
-  ChromeLegacyIpc_MessageClass message_class() const { return message_class_; }
-  void set_message_class(ChromeLegacyIpc_MessageClass value) { message_class_ = value; _has_field_.set(1); }
-
-  bool has_message_line() const { return _has_field_[2]; }
-  uint32_t message_line() const { return message_line_; }
-  void set_message_line(uint32_t value) { message_line_ = value; _has_field_.set(2); }
-
- private:
-  ChromeLegacyIpc_MessageClass message_class_{};
-  uint32_t message_line_{};
-
-  // Allows to preserve unknown protobuf fields for compatibility
-  // with future versions of .proto files.
-  std::string unknown_fields_;
-
-  std::bitset<3> _has_field_{};
-};
-
-}  // namespace perfetto
-}  // namespace protos
-}  // namespace gen
-
-#endif  // PERFETTO_PROTOS_PROTOS_PERFETTO_TRACE_TRACK_EVENT_CHROME_LEGACY_IPC_PROTO_CPP_H_
-// gen_amalgamated expanded: #include "perfetto/protozero/message.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/packed_repeated_fields.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/proto_decoder.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/scattered_heap_buffer.h"
-// DO NOT EDIT. Autogenerated by Perfetto cppgen_plugin
-#if defined(__GNUC__) || defined(__clang__)
-#pragma GCC diagnostic push
-#pragma GCC diagnostic ignored "-Wfloat-equal"
-#endif
-// gen_amalgamated expanded: #include "protos/perfetto/trace/track_event/chrome_legacy_ipc.gen.h"
-
-namespace perfetto {
-namespace protos {
-namespace gen {
-
-ChromeLegacyIpc::ChromeLegacyIpc() = default;
-ChromeLegacyIpc::~ChromeLegacyIpc() = default;
-ChromeLegacyIpc::ChromeLegacyIpc(const ChromeLegacyIpc&) = default;
-ChromeLegacyIpc& ChromeLegacyIpc::operator=(const ChromeLegacyIpc&) = default;
-ChromeLegacyIpc::ChromeLegacyIpc(ChromeLegacyIpc&&) noexcept = default;
-ChromeLegacyIpc& ChromeLegacyIpc::operator=(ChromeLegacyIpc&&) = default;
-
-bool ChromeLegacyIpc::operator==(const ChromeLegacyIpc& other) const {
-  return unknown_fields_ == other.unknown_fields_
-   && message_class_ == other.message_class_
-   && message_line_ == other.message_line_;
-}
-
-bool ChromeLegacyIpc::ParseFromArray(const void* raw, size_t size) {
-  unknown_fields_.clear();
-  bool packed_error = false;
-
-  ::protozero::ProtoDecoder dec(raw, size);
-  for (auto field = dec.ReadField(); field.valid(); field = dec.ReadField()) {
-    if (field.id() < _has_field_.size()) {
-      _has_field_.set(field.id());
-    }
-    switch (field.id()) {
-      case 1 /* message_class */:
-        field.get(&message_class_);
-        break;
-      case 2 /* message_line */:
-        field.get(&message_line_);
-        break;
-      default:
-        field.SerializeAndAppendTo(&unknown_fields_);
-        break;
-    }
-  }
-  return !packed_error && !dec.bytes_left();
-}
-
-std::string ChromeLegacyIpc::SerializeAsString() const {
-  ::protozero::HeapBuffered<::protozero::Message> msg;
-  Serialize(msg.get());
-  return msg.SerializeAsString();
-}
-
-std::vector<uint8_t> ChromeLegacyIpc::SerializeAsArray() const {
-  ::protozero::HeapBuffered<::protozero::Message> msg;
-  Serialize(msg.get());
-  return msg.SerializeAsArray();
-}
-
-void ChromeLegacyIpc::Serialize(::protozero::Message* msg) const {
-  // Field 1: message_class
-  if (_has_field_[1]) {
-    msg->AppendVarInt(1, message_class_);
-  }
-
-  // Field 2: message_line
-  if (_has_field_[2]) {
-    msg->AppendVarInt(2, message_line_);
-  }
-
-  msg->AppendRawProtoBytes(unknown_fields_.data(), unknown_fields_.size());
-}
-
-}  // namespace perfetto
-}  // namespace protos
-}  // namespace gen
-#if defined(__GNUC__) || defined(__clang__)
-#pragma GCC diagnostic pop
-#endif
-// gen_amalgamated begin source: gen/protos/perfetto/trace/track_event/chrome_message_pump.gen.cc
-// gen_amalgamated begin header: gen/protos/perfetto/trace/track_event/chrome_message_pump.gen.h
-// DO NOT EDIT. Autogenerated by Perfetto cppgen_plugin
-#ifndef PERFETTO_PROTOS_PROTOS_PERFETTO_TRACE_TRACK_EVENT_CHROME_MESSAGE_PUMP_PROTO_CPP_H_
-#define PERFETTO_PROTOS_PROTOS_PERFETTO_TRACE_TRACK_EVENT_CHROME_MESSAGE_PUMP_PROTO_CPP_H_
-
-#include <stdint.h>
-#include <bitset>
-#include <vector>
-#include <string>
-#include <type_traits>
-
-// gen_amalgamated expanded: #include "perfetto/protozero/cpp_message_obj.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/copyable_ptr.h"
-// gen_amalgamated expanded: #include "perfetto/base/export.h"
-
-namespace perfetto {
-namespace protos {
-namespace gen {
-class ChromeMessagePump;
-}  // namespace perfetto
-}  // namespace protos
-}  // namespace gen
-
-namespace protozero {
-class Message;
-}  // namespace protozero
-
-namespace perfetto {
-namespace protos {
-namespace gen {
-
-class PERFETTO_EXPORT ChromeMessagePump : public ::protozero::CppMessageObj {
- public:
-  enum FieldNumbers {
-    kSentMessagesInQueueFieldNumber = 1,
-    kIoHandlerLocationIidFieldNumber = 2,
-  };
-
-  ChromeMessagePump();
-  ~ChromeMessagePump() override;
-  ChromeMessagePump(ChromeMessagePump&&) noexcept;
-  ChromeMessagePump& operator=(ChromeMessagePump&&);
-  ChromeMessagePump(const ChromeMessagePump&);
-  ChromeMessagePump& operator=(const ChromeMessagePump&);
-  bool operator==(const ChromeMessagePump&) const;
-  bool operator!=(const ChromeMessagePump& other) const { return !(*this == other); }
-
-  bool ParseFromArray(const void*, size_t) override;
-  std::string SerializeAsString() const override;
-  std::vector<uint8_t> SerializeAsArray() const override;
-  void Serialize(::protozero::Message*) const;
-
-  bool has_sent_messages_in_queue() const { return _has_field_[1]; }
-  bool sent_messages_in_queue() const { return sent_messages_in_queue_; }
-  void set_sent_messages_in_queue(bool value) { sent_messages_in_queue_ = value; _has_field_.set(1); }
-
-  bool has_io_handler_location_iid() const { return _has_field_[2]; }
-  uint64_t io_handler_location_iid() const { return io_handler_location_iid_; }
-  void set_io_handler_location_iid(uint64_t value) { io_handler_location_iid_ = value; _has_field_.set(2); }
-
- private:
-  bool sent_messages_in_queue_{};
-  uint64_t io_handler_location_iid_{};
-
-  // Allows to preserve unknown protobuf fields for compatibility
-  // with future versions of .proto files.
-  std::string unknown_fields_;
-
-  std::bitset<3> _has_field_{};
-};
-
-}  // namespace perfetto
-}  // namespace protos
-}  // namespace gen
-
-#endif  // PERFETTO_PROTOS_PROTOS_PERFETTO_TRACE_TRACK_EVENT_CHROME_MESSAGE_PUMP_PROTO_CPP_H_
-// gen_amalgamated expanded: #include "perfetto/protozero/message.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/packed_repeated_fields.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/proto_decoder.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/scattered_heap_buffer.h"
-// DO NOT EDIT. Autogenerated by Perfetto cppgen_plugin
-#if defined(__GNUC__) || defined(__clang__)
-#pragma GCC diagnostic push
-#pragma GCC diagnostic ignored "-Wfloat-equal"
-#endif
-// gen_amalgamated expanded: #include "protos/perfetto/trace/track_event/chrome_message_pump.gen.h"
-
-namespace perfetto {
-namespace protos {
-namespace gen {
-
-ChromeMessagePump::ChromeMessagePump() = default;
-ChromeMessagePump::~ChromeMessagePump() = default;
-ChromeMessagePump::ChromeMessagePump(const ChromeMessagePump&) = default;
-ChromeMessagePump& ChromeMessagePump::operator=(const ChromeMessagePump&) = default;
-ChromeMessagePump::ChromeMessagePump(ChromeMessagePump&&) noexcept = default;
-ChromeMessagePump& ChromeMessagePump::operator=(ChromeMessagePump&&) = default;
-
-bool ChromeMessagePump::operator==(const ChromeMessagePump& other) const {
-  return unknown_fields_ == other.unknown_fields_
-   && sent_messages_in_queue_ == other.sent_messages_in_queue_
-   && io_handler_location_iid_ == other.io_handler_location_iid_;
-}
-
-bool ChromeMessagePump::ParseFromArray(const void* raw, size_t size) {
-  unknown_fields_.clear();
-  bool packed_error = false;
-
-  ::protozero::ProtoDecoder dec(raw, size);
-  for (auto field = dec.ReadField(); field.valid(); field = dec.ReadField()) {
-    if (field.id() < _has_field_.size()) {
-      _has_field_.set(field.id());
-    }
-    switch (field.id()) {
-      case 1 /* sent_messages_in_queue */:
-        field.get(&sent_messages_in_queue_);
-        break;
-      case 2 /* io_handler_location_iid */:
-        field.get(&io_handler_location_iid_);
-        break;
-      default:
-        field.SerializeAndAppendTo(&unknown_fields_);
-        break;
-    }
-  }
-  return !packed_error && !dec.bytes_left();
-}
-
-std::string ChromeMessagePump::SerializeAsString() const {
-  ::protozero::HeapBuffered<::protozero::Message> msg;
-  Serialize(msg.get());
-  return msg.SerializeAsString();
-}
-
-std::vector<uint8_t> ChromeMessagePump::SerializeAsArray() const {
-  ::protozero::HeapBuffered<::protozero::Message> msg;
-  Serialize(msg.get());
-  return msg.SerializeAsArray();
-}
-
-void ChromeMessagePump::Serialize(::protozero::Message* msg) const {
-  // Field 1: sent_messages_in_queue
-  if (_has_field_[1]) {
-    msg->AppendTinyVarInt(1, sent_messages_in_queue_);
-  }
-
-  // Field 2: io_handler_location_iid
-  if (_has_field_[2]) {
-    msg->AppendVarInt(2, io_handler_location_iid_);
-  }
-
-  msg->AppendRawProtoBytes(unknown_fields_.data(), unknown_fields_.size());
-}
-
-}  // namespace perfetto
-}  // namespace protos
-}  // namespace gen
-#if defined(__GNUC__) || defined(__clang__)
-#pragma GCC diagnostic pop
-#endif
-// gen_amalgamated begin source: gen/protos/perfetto/trace/track_event/chrome_mojo_event_info.gen.cc
-// gen_amalgamated begin header: gen/protos/perfetto/trace/track_event/chrome_mojo_event_info.gen.h
-// DO NOT EDIT. Autogenerated by Perfetto cppgen_plugin
-#ifndef PERFETTO_PROTOS_PROTOS_PERFETTO_TRACE_TRACK_EVENT_CHROME_MOJO_EVENT_INFO_PROTO_CPP_H_
-#define PERFETTO_PROTOS_PROTOS_PERFETTO_TRACE_TRACK_EVENT_CHROME_MOJO_EVENT_INFO_PROTO_CPP_H_
-
-#include <stdint.h>
-#include <bitset>
-#include <vector>
-#include <string>
-#include <type_traits>
-
-// gen_amalgamated expanded: #include "perfetto/protozero/cpp_message_obj.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/copyable_ptr.h"
-// gen_amalgamated expanded: #include "perfetto/base/export.h"
-
-namespace perfetto {
-namespace protos {
-namespace gen {
-class ChromeMojoEventInfo;
-}  // namespace perfetto
-}  // namespace protos
-}  // namespace gen
-
-namespace protozero {
-class Message;
-}  // namespace protozero
-
-namespace perfetto {
-namespace protos {
-namespace gen {
-
-class PERFETTO_EXPORT ChromeMojoEventInfo : public ::protozero::CppMessageObj {
- public:
-  enum FieldNumbers {
-    kWatcherNotifyInterfaceTagFieldNumber = 1,
-    kIpcHashFieldNumber = 2,
-    kMojoInterfaceTagFieldNumber = 3,
-  };
-
-  ChromeMojoEventInfo();
-  ~ChromeMojoEventInfo() override;
-  ChromeMojoEventInfo(ChromeMojoEventInfo&&) noexcept;
-  ChromeMojoEventInfo& operator=(ChromeMojoEventInfo&&);
-  ChromeMojoEventInfo(const ChromeMojoEventInfo&);
-  ChromeMojoEventInfo& operator=(const ChromeMojoEventInfo&);
-  bool operator==(const ChromeMojoEventInfo&) const;
-  bool operator!=(const ChromeMojoEventInfo& other) const { return !(*this == other); }
-
-  bool ParseFromArray(const void*, size_t) override;
-  std::string SerializeAsString() const override;
-  std::vector<uint8_t> SerializeAsArray() const override;
-  void Serialize(::protozero::Message*) const;
-
-  bool has_watcher_notify_interface_tag() const { return _has_field_[1]; }
-  const std::string& watcher_notify_interface_tag() const { return watcher_notify_interface_tag_; }
-  void set_watcher_notify_interface_tag(const std::string& value) { watcher_notify_interface_tag_ = value; _has_field_.set(1); }
-
-  bool has_ipc_hash() const { return _has_field_[2]; }
-  uint32_t ipc_hash() const { return ipc_hash_; }
-  void set_ipc_hash(uint32_t value) { ipc_hash_ = value; _has_field_.set(2); }
-
-  bool has_mojo_interface_tag() const { return _has_field_[3]; }
-  const std::string& mojo_interface_tag() const { return mojo_interface_tag_; }
-  void set_mojo_interface_tag(const std::string& value) { mojo_interface_tag_ = value; _has_field_.set(3); }
-
- private:
-  std::string watcher_notify_interface_tag_{};
-  uint32_t ipc_hash_{};
-  std::string mojo_interface_tag_{};
-
-  // Allows to preserve unknown protobuf fields for compatibility
-  // with future versions of .proto files.
-  std::string unknown_fields_;
-
-  std::bitset<4> _has_field_{};
-};
-
-}  // namespace perfetto
-}  // namespace protos
-}  // namespace gen
-
-#endif  // PERFETTO_PROTOS_PROTOS_PERFETTO_TRACE_TRACK_EVENT_CHROME_MOJO_EVENT_INFO_PROTO_CPP_H_
-// gen_amalgamated expanded: #include "perfetto/protozero/message.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/packed_repeated_fields.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/proto_decoder.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/scattered_heap_buffer.h"
-// DO NOT EDIT. Autogenerated by Perfetto cppgen_plugin
-#if defined(__GNUC__) || defined(__clang__)
-#pragma GCC diagnostic push
-#pragma GCC diagnostic ignored "-Wfloat-equal"
-#endif
-// gen_amalgamated expanded: #include "protos/perfetto/trace/track_event/chrome_mojo_event_info.gen.h"
-
-namespace perfetto {
-namespace protos {
-namespace gen {
-
-ChromeMojoEventInfo::ChromeMojoEventInfo() = default;
-ChromeMojoEventInfo::~ChromeMojoEventInfo() = default;
-ChromeMojoEventInfo::ChromeMojoEventInfo(const ChromeMojoEventInfo&) = default;
-ChromeMojoEventInfo& ChromeMojoEventInfo::operator=(const ChromeMojoEventInfo&) = default;
-ChromeMojoEventInfo::ChromeMojoEventInfo(ChromeMojoEventInfo&&) noexcept = default;
-ChromeMojoEventInfo& ChromeMojoEventInfo::operator=(ChromeMojoEventInfo&&) = default;
-
-bool ChromeMojoEventInfo::operator==(const ChromeMojoEventInfo& other) const {
-  return unknown_fields_ == other.unknown_fields_
-   && watcher_notify_interface_tag_ == other.watcher_notify_interface_tag_
-   && ipc_hash_ == other.ipc_hash_
-   && mojo_interface_tag_ == other.mojo_interface_tag_;
-}
-
-bool ChromeMojoEventInfo::ParseFromArray(const void* raw, size_t size) {
-  unknown_fields_.clear();
-  bool packed_error = false;
-
-  ::protozero::ProtoDecoder dec(raw, size);
-  for (auto field = dec.ReadField(); field.valid(); field = dec.ReadField()) {
-    if (field.id() < _has_field_.size()) {
-      _has_field_.set(field.id());
-    }
-    switch (field.id()) {
-      case 1 /* watcher_notify_interface_tag */:
-        field.get(&watcher_notify_interface_tag_);
-        break;
-      case 2 /* ipc_hash */:
-        field.get(&ipc_hash_);
-        break;
-      case 3 /* mojo_interface_tag */:
-        field.get(&mojo_interface_tag_);
-        break;
-      default:
-        field.SerializeAndAppendTo(&unknown_fields_);
-        break;
-    }
-  }
-  return !packed_error && !dec.bytes_left();
-}
-
-std::string ChromeMojoEventInfo::SerializeAsString() const {
-  ::protozero::HeapBuffered<::protozero::Message> msg;
-  Serialize(msg.get());
-  return msg.SerializeAsString();
-}
-
-std::vector<uint8_t> ChromeMojoEventInfo::SerializeAsArray() const {
-  ::protozero::HeapBuffered<::protozero::Message> msg;
-  Serialize(msg.get());
-  return msg.SerializeAsArray();
-}
-
-void ChromeMojoEventInfo::Serialize(::protozero::Message* msg) const {
-  // Field 1: watcher_notify_interface_tag
-  if (_has_field_[1]) {
-    msg->AppendString(1, watcher_notify_interface_tag_);
-  }
-
-  // Field 2: ipc_hash
-  if (_has_field_[2]) {
-    msg->AppendVarInt(2, ipc_hash_);
-  }
-
-  // Field 3: mojo_interface_tag
-  if (_has_field_[3]) {
-    msg->AppendString(3, mojo_interface_tag_);
-  }
-
-  msg->AppendRawProtoBytes(unknown_fields_.data(), unknown_fields_.size());
-}
-
-}  // namespace perfetto
-}  // namespace protos
-}  // namespace gen
-#if defined(__GNUC__) || defined(__clang__)
-#pragma GCC diagnostic pop
-#endif
-// gen_amalgamated begin source: gen/protos/perfetto/trace/track_event/chrome_process_descriptor.gen.cc
-// gen_amalgamated begin header: gen/protos/perfetto/trace/track_event/chrome_process_descriptor.gen.h
-// DO NOT EDIT. Autogenerated by Perfetto cppgen_plugin
-#ifndef PERFETTO_PROTOS_PROTOS_PERFETTO_TRACE_TRACK_EVENT_CHROME_PROCESS_DESCRIPTOR_PROTO_CPP_H_
-#define PERFETTO_PROTOS_PROTOS_PERFETTO_TRACE_TRACK_EVENT_CHROME_PROCESS_DESCRIPTOR_PROTO_CPP_H_
-
-#include <stdint.h>
-#include <bitset>
-#include <vector>
-#include <string>
-#include <type_traits>
-
-// gen_amalgamated expanded: #include "perfetto/protozero/cpp_message_obj.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/copyable_ptr.h"
-// gen_amalgamated expanded: #include "perfetto/base/export.h"
-
-namespace perfetto {
-namespace protos {
-namespace gen {
-class ChromeProcessDescriptor;
-enum ChromeProcessDescriptor_ProcessType : int;
-}  // namespace perfetto
-}  // namespace protos
-}  // namespace gen
-
-namespace protozero {
-class Message;
-}  // namespace protozero
-
-namespace perfetto {
-namespace protos {
-namespace gen {
-enum ChromeProcessDescriptor_ProcessType : int {
-  ChromeProcessDescriptor_ProcessType_PROCESS_UNSPECIFIED = 0,
-  ChromeProcessDescriptor_ProcessType_PROCESS_BROWSER = 1,
-  ChromeProcessDescriptor_ProcessType_PROCESS_RENDERER = 2,
-  ChromeProcessDescriptor_ProcessType_PROCESS_UTILITY = 3,
-  ChromeProcessDescriptor_ProcessType_PROCESS_ZYGOTE = 4,
-  ChromeProcessDescriptor_ProcessType_PROCESS_SANDBOX_HELPER = 5,
-  ChromeProcessDescriptor_ProcessType_PROCESS_GPU = 6,
-  ChromeProcessDescriptor_ProcessType_PROCESS_PPAPI_PLUGIN = 7,
-  ChromeProcessDescriptor_ProcessType_PROCESS_PPAPI_BROKER = 8,
-  ChromeProcessDescriptor_ProcessType_PROCESS_SERVICE_NETWORK = 9,
-  ChromeProcessDescriptor_ProcessType_PROCESS_SERVICE_TRACING = 10,
-  ChromeProcessDescriptor_ProcessType_PROCESS_SERVICE_STORAGE = 11,
-  ChromeProcessDescriptor_ProcessType_PROCESS_SERVICE_AUDIO = 12,
-  ChromeProcessDescriptor_ProcessType_PROCESS_SERVICE_DATA_DECODER = 13,
-  ChromeProcessDescriptor_ProcessType_PROCESS_SERVICE_UTIL_WIN = 14,
-  ChromeProcessDescriptor_ProcessType_PROCESS_SERVICE_PROXY_RESOLVER = 15,
-  ChromeProcessDescriptor_ProcessType_PROCESS_SERVICE_CDM = 16,
-  ChromeProcessDescriptor_ProcessType_PROCESS_SERVICE_VIDEO_CAPTURE = 17,
-  ChromeProcessDescriptor_ProcessType_PROCESS_SERVICE_UNZIPPER = 18,
-  ChromeProcessDescriptor_ProcessType_PROCESS_SERVICE_MIRRORING = 19,
-  ChromeProcessDescriptor_ProcessType_PROCESS_SERVICE_FILEPATCHER = 20,
-  ChromeProcessDescriptor_ProcessType_PROCESS_SERVICE_TTS = 21,
-  ChromeProcessDescriptor_ProcessType_PROCESS_SERVICE_PRINTING = 22,
-  ChromeProcessDescriptor_ProcessType_PROCESS_SERVICE_QUARANTINE = 23,
-  ChromeProcessDescriptor_ProcessType_PROCESS_SERVICE_CROS_LOCALSEARCH = 24,
-  ChromeProcessDescriptor_ProcessType_PROCESS_SERVICE_CROS_ASSISTANT_AUDIO_DECODER = 25,
-  ChromeProcessDescriptor_ProcessType_PROCESS_SERVICE_FILEUTIL = 26,
-  ChromeProcessDescriptor_ProcessType_PROCESS_SERVICE_PRINTCOMPOSITOR = 27,
-  ChromeProcessDescriptor_ProcessType_PROCESS_SERVICE_PAINTPREVIEW = 28,
-  ChromeProcessDescriptor_ProcessType_PROCESS_SERVICE_SPEECHRECOGNITION = 29,
-  ChromeProcessDescriptor_ProcessType_PROCESS_SERVICE_XRDEVICE = 30,
-  ChromeProcessDescriptor_ProcessType_PROCESS_SERVICE_READICON = 31,
-  ChromeProcessDescriptor_ProcessType_PROCESS_SERVICE_LANGUAGEDETECTION = 32,
-  ChromeProcessDescriptor_ProcessType_PROCESS_SERVICE_SHARING = 33,
-  ChromeProcessDescriptor_ProcessType_PROCESS_SERVICE_MEDIAPARSER = 34,
-  ChromeProcessDescriptor_ProcessType_PROCESS_SERVICE_QRCODEGENERATOR = 35,
-  ChromeProcessDescriptor_ProcessType_PROCESS_SERVICE_PROFILEIMPORT = 36,
-  ChromeProcessDescriptor_ProcessType_PROCESS_SERVICE_IME = 37,
-  ChromeProcessDescriptor_ProcessType_PROCESS_SERVICE_RECORDING = 38,
-  ChromeProcessDescriptor_ProcessType_PROCESS_SERVICE_SHAPEDETECTION = 39,
-};
-
-class PERFETTO_EXPORT ChromeProcessDescriptor : public ::protozero::CppMessageObj {
- public:
-  using ProcessType = ChromeProcessDescriptor_ProcessType;
-  static constexpr auto PROCESS_UNSPECIFIED = ChromeProcessDescriptor_ProcessType_PROCESS_UNSPECIFIED;
-  static constexpr auto PROCESS_BROWSER = ChromeProcessDescriptor_ProcessType_PROCESS_BROWSER;
-  static constexpr auto PROCESS_RENDERER = ChromeProcessDescriptor_ProcessType_PROCESS_RENDERER;
-  static constexpr auto PROCESS_UTILITY = ChromeProcessDescriptor_ProcessType_PROCESS_UTILITY;
-  static constexpr auto PROCESS_ZYGOTE = ChromeProcessDescriptor_ProcessType_PROCESS_ZYGOTE;
-  static constexpr auto PROCESS_SANDBOX_HELPER = ChromeProcessDescriptor_ProcessType_PROCESS_SANDBOX_HELPER;
-  static constexpr auto PROCESS_GPU = ChromeProcessDescriptor_ProcessType_PROCESS_GPU;
-  static constexpr auto PROCESS_PPAPI_PLUGIN = ChromeProcessDescriptor_ProcessType_PROCESS_PPAPI_PLUGIN;
-  static constexpr auto PROCESS_PPAPI_BROKER = ChromeProcessDescriptor_ProcessType_PROCESS_PPAPI_BROKER;
-  static constexpr auto PROCESS_SERVICE_NETWORK = ChromeProcessDescriptor_ProcessType_PROCESS_SERVICE_NETWORK;
-  static constexpr auto PROCESS_SERVICE_TRACING = ChromeProcessDescriptor_ProcessType_PROCESS_SERVICE_TRACING;
-  static constexpr auto PROCESS_SERVICE_STORAGE = ChromeProcessDescriptor_ProcessType_PROCESS_SERVICE_STORAGE;
-  static constexpr auto PROCESS_SERVICE_AUDIO = ChromeProcessDescriptor_ProcessType_PROCESS_SERVICE_AUDIO;
-  static constexpr auto PROCESS_SERVICE_DATA_DECODER = ChromeProcessDescriptor_ProcessType_PROCESS_SERVICE_DATA_DECODER;
-  static constexpr auto PROCESS_SERVICE_UTIL_WIN = ChromeProcessDescriptor_ProcessType_PROCESS_SERVICE_UTIL_WIN;
-  static constexpr auto PROCESS_SERVICE_PROXY_RESOLVER = ChromeProcessDescriptor_ProcessType_PROCESS_SERVICE_PROXY_RESOLVER;
-  static constexpr auto PROCESS_SERVICE_CDM = ChromeProcessDescriptor_ProcessType_PROCESS_SERVICE_CDM;
-  static constexpr auto PROCESS_SERVICE_VIDEO_CAPTURE = ChromeProcessDescriptor_ProcessType_PROCESS_SERVICE_VIDEO_CAPTURE;
-  static constexpr auto PROCESS_SERVICE_UNZIPPER = ChromeProcessDescriptor_ProcessType_PROCESS_SERVICE_UNZIPPER;
-  static constexpr auto PROCESS_SERVICE_MIRRORING = ChromeProcessDescriptor_ProcessType_PROCESS_SERVICE_MIRRORING;
-  static constexpr auto PROCESS_SERVICE_FILEPATCHER = ChromeProcessDescriptor_ProcessType_PROCESS_SERVICE_FILEPATCHER;
-  static constexpr auto PROCESS_SERVICE_TTS = ChromeProcessDescriptor_ProcessType_PROCESS_SERVICE_TTS;
-  static constexpr auto PROCESS_SERVICE_PRINTING = ChromeProcessDescriptor_ProcessType_PROCESS_SERVICE_PRINTING;
-  static constexpr auto PROCESS_SERVICE_QUARANTINE = ChromeProcessDescriptor_ProcessType_PROCESS_SERVICE_QUARANTINE;
-  static constexpr auto PROCESS_SERVICE_CROS_LOCALSEARCH = ChromeProcessDescriptor_ProcessType_PROCESS_SERVICE_CROS_LOCALSEARCH;
-  static constexpr auto PROCESS_SERVICE_CROS_ASSISTANT_AUDIO_DECODER = ChromeProcessDescriptor_ProcessType_PROCESS_SERVICE_CROS_ASSISTANT_AUDIO_DECODER;
-  static constexpr auto PROCESS_SERVICE_FILEUTIL = ChromeProcessDescriptor_ProcessType_PROCESS_SERVICE_FILEUTIL;
-  static constexpr auto PROCESS_SERVICE_PRINTCOMPOSITOR = ChromeProcessDescriptor_ProcessType_PROCESS_SERVICE_PRINTCOMPOSITOR;
-  static constexpr auto PROCESS_SERVICE_PAINTPREVIEW = ChromeProcessDescriptor_ProcessType_PROCESS_SERVICE_PAINTPREVIEW;
-  static constexpr auto PROCESS_SERVICE_SPEECHRECOGNITION = ChromeProcessDescriptor_ProcessType_PROCESS_SERVICE_SPEECHRECOGNITION;
-  static constexpr auto PROCESS_SERVICE_XRDEVICE = ChromeProcessDescriptor_ProcessType_PROCESS_SERVICE_XRDEVICE;
-  static constexpr auto PROCESS_SERVICE_READICON = ChromeProcessDescriptor_ProcessType_PROCESS_SERVICE_READICON;
-  static constexpr auto PROCESS_SERVICE_LANGUAGEDETECTION = ChromeProcessDescriptor_ProcessType_PROCESS_SERVICE_LANGUAGEDETECTION;
-  static constexpr auto PROCESS_SERVICE_SHARING = ChromeProcessDescriptor_ProcessType_PROCESS_SERVICE_SHARING;
-  static constexpr auto PROCESS_SERVICE_MEDIAPARSER = ChromeProcessDescriptor_ProcessType_PROCESS_SERVICE_MEDIAPARSER;
-  static constexpr auto PROCESS_SERVICE_QRCODEGENERATOR = ChromeProcessDescriptor_ProcessType_PROCESS_SERVICE_QRCODEGENERATOR;
-  static constexpr auto PROCESS_SERVICE_PROFILEIMPORT = ChromeProcessDescriptor_ProcessType_PROCESS_SERVICE_PROFILEIMPORT;
-  static constexpr auto PROCESS_SERVICE_IME = ChromeProcessDescriptor_ProcessType_PROCESS_SERVICE_IME;
-  static constexpr auto PROCESS_SERVICE_RECORDING = ChromeProcessDescriptor_ProcessType_PROCESS_SERVICE_RECORDING;
-  static constexpr auto PROCESS_SERVICE_SHAPEDETECTION = ChromeProcessDescriptor_ProcessType_PROCESS_SERVICE_SHAPEDETECTION;
-  static constexpr auto ProcessType_MIN = ChromeProcessDescriptor_ProcessType_PROCESS_UNSPECIFIED;
-  static constexpr auto ProcessType_MAX = ChromeProcessDescriptor_ProcessType_PROCESS_SERVICE_SHAPEDETECTION;
-  enum FieldNumbers {
-    kProcessTypeFieldNumber = 1,
-    kProcessPriorityFieldNumber = 2,
-    kLegacySortIndexFieldNumber = 3,
-    kHostAppPackageNameFieldNumber = 4,
-    kCrashTraceIdFieldNumber = 5,
-  };
-
-  ChromeProcessDescriptor();
-  ~ChromeProcessDescriptor() override;
-  ChromeProcessDescriptor(ChromeProcessDescriptor&&) noexcept;
-  ChromeProcessDescriptor& operator=(ChromeProcessDescriptor&&);
-  ChromeProcessDescriptor(const ChromeProcessDescriptor&);
-  ChromeProcessDescriptor& operator=(const ChromeProcessDescriptor&);
-  bool operator==(const ChromeProcessDescriptor&) const;
-  bool operator!=(const ChromeProcessDescriptor& other) const { return !(*this == other); }
-
-  bool ParseFromArray(const void*, size_t) override;
-  std::string SerializeAsString() const override;
-  std::vector<uint8_t> SerializeAsArray() const override;
-  void Serialize(::protozero::Message*) const;
-
-  bool has_process_type() const { return _has_field_[1]; }
-  ChromeProcessDescriptor_ProcessType process_type() const { return process_type_; }
-  void set_process_type(ChromeProcessDescriptor_ProcessType value) { process_type_ = value; _has_field_.set(1); }
-
-  bool has_process_priority() const { return _has_field_[2]; }
-  int32_t process_priority() const { return process_priority_; }
-  void set_process_priority(int32_t value) { process_priority_ = value; _has_field_.set(2); }
-
-  bool has_legacy_sort_index() const { return _has_field_[3]; }
-  int32_t legacy_sort_index() const { return legacy_sort_index_; }
-  void set_legacy_sort_index(int32_t value) { legacy_sort_index_ = value; _has_field_.set(3); }
-
-  bool has_host_app_package_name() const { return _has_field_[4]; }
-  const std::string& host_app_package_name() const { return host_app_package_name_; }
-  void set_host_app_package_name(const std::string& value) { host_app_package_name_ = value; _has_field_.set(4); }
-
-  bool has_crash_trace_id() const { return _has_field_[5]; }
-  uint64_t crash_trace_id() const { return crash_trace_id_; }
-  void set_crash_trace_id(uint64_t value) { crash_trace_id_ = value; _has_field_.set(5); }
-
- private:
-  ChromeProcessDescriptor_ProcessType process_type_{};
-  int32_t process_priority_{};
-  int32_t legacy_sort_index_{};
-  std::string host_app_package_name_{};
-  uint64_t crash_trace_id_{};
-
-  // Allows to preserve unknown protobuf fields for compatibility
-  // with future versions of .proto files.
-  std::string unknown_fields_;
-
-  std::bitset<6> _has_field_{};
-};
-
-}  // namespace perfetto
-}  // namespace protos
-}  // namespace gen
-
-#endif  // PERFETTO_PROTOS_PROTOS_PERFETTO_TRACE_TRACK_EVENT_CHROME_PROCESS_DESCRIPTOR_PROTO_CPP_H_
-// gen_amalgamated expanded: #include "perfetto/protozero/message.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/packed_repeated_fields.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/proto_decoder.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/scattered_heap_buffer.h"
-// DO NOT EDIT. Autogenerated by Perfetto cppgen_plugin
-#if defined(__GNUC__) || defined(__clang__)
-#pragma GCC diagnostic push
-#pragma GCC diagnostic ignored "-Wfloat-equal"
-#endif
-// gen_amalgamated expanded: #include "protos/perfetto/trace/track_event/chrome_process_descriptor.gen.h"
-
-namespace perfetto {
-namespace protos {
-namespace gen {
-
-ChromeProcessDescriptor::ChromeProcessDescriptor() = default;
-ChromeProcessDescriptor::~ChromeProcessDescriptor() = default;
-ChromeProcessDescriptor::ChromeProcessDescriptor(const ChromeProcessDescriptor&) = default;
-ChromeProcessDescriptor& ChromeProcessDescriptor::operator=(const ChromeProcessDescriptor&) = default;
-ChromeProcessDescriptor::ChromeProcessDescriptor(ChromeProcessDescriptor&&) noexcept = default;
-ChromeProcessDescriptor& ChromeProcessDescriptor::operator=(ChromeProcessDescriptor&&) = default;
-
-bool ChromeProcessDescriptor::operator==(const ChromeProcessDescriptor& other) const {
-  return unknown_fields_ == other.unknown_fields_
-   && process_type_ == other.process_type_
-   && process_priority_ == other.process_priority_
-   && legacy_sort_index_ == other.legacy_sort_index_
-   && host_app_package_name_ == other.host_app_package_name_
-   && crash_trace_id_ == other.crash_trace_id_;
-}
-
-bool ChromeProcessDescriptor::ParseFromArray(const void* raw, size_t size) {
-  unknown_fields_.clear();
-  bool packed_error = false;
-
-  ::protozero::ProtoDecoder dec(raw, size);
-  for (auto field = dec.ReadField(); field.valid(); field = dec.ReadField()) {
-    if (field.id() < _has_field_.size()) {
-      _has_field_.set(field.id());
-    }
-    switch (field.id()) {
-      case 1 /* process_type */:
-        field.get(&process_type_);
-        break;
-      case 2 /* process_priority */:
-        field.get(&process_priority_);
-        break;
-      case 3 /* legacy_sort_index */:
-        field.get(&legacy_sort_index_);
-        break;
-      case 4 /* host_app_package_name */:
-        field.get(&host_app_package_name_);
-        break;
-      case 5 /* crash_trace_id */:
-        field.get(&crash_trace_id_);
-        break;
-      default:
-        field.SerializeAndAppendTo(&unknown_fields_);
-        break;
-    }
-  }
-  return !packed_error && !dec.bytes_left();
-}
-
-std::string ChromeProcessDescriptor::SerializeAsString() const {
-  ::protozero::HeapBuffered<::protozero::Message> msg;
-  Serialize(msg.get());
-  return msg.SerializeAsString();
-}
-
-std::vector<uint8_t> ChromeProcessDescriptor::SerializeAsArray() const {
-  ::protozero::HeapBuffered<::protozero::Message> msg;
-  Serialize(msg.get());
-  return msg.SerializeAsArray();
-}
-
-void ChromeProcessDescriptor::Serialize(::protozero::Message* msg) const {
-  // Field 1: process_type
-  if (_has_field_[1]) {
-    msg->AppendVarInt(1, process_type_);
-  }
-
-  // Field 2: process_priority
-  if (_has_field_[2]) {
-    msg->AppendVarInt(2, process_priority_);
-  }
-
-  // Field 3: legacy_sort_index
-  if (_has_field_[3]) {
-    msg->AppendVarInt(3, legacy_sort_index_);
-  }
-
-  // Field 4: host_app_package_name
-  if (_has_field_[4]) {
-    msg->AppendString(4, host_app_package_name_);
-  }
-
-  // Field 5: crash_trace_id
-  if (_has_field_[5]) {
-    msg->AppendVarInt(5, crash_trace_id_);
-  }
-
-  msg->AppendRawProtoBytes(unknown_fields_.data(), unknown_fields_.size());
-}
-
-}  // namespace perfetto
-}  // namespace protos
-}  // namespace gen
-#if defined(__GNUC__) || defined(__clang__)
-#pragma GCC diagnostic pop
-#endif
-// gen_amalgamated begin source: gen/protos/perfetto/trace/track_event/chrome_renderer_scheduler_state.gen.cc
-// gen_amalgamated begin header: gen/protos/perfetto/trace/track_event/chrome_renderer_scheduler_state.gen.h
-// DO NOT EDIT. Autogenerated by Perfetto cppgen_plugin
-#ifndef PERFETTO_PROTOS_PROTOS_PERFETTO_TRACE_TRACK_EVENT_CHROME_RENDERER_SCHEDULER_STATE_PROTO_CPP_H_
-#define PERFETTO_PROTOS_PROTOS_PERFETTO_TRACE_TRACK_EVENT_CHROME_RENDERER_SCHEDULER_STATE_PROTO_CPP_H_
-
-#include <stdint.h>
-#include <bitset>
-#include <vector>
-#include <string>
-#include <type_traits>
-
-// gen_amalgamated expanded: #include "perfetto/protozero/cpp_message_obj.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/copyable_ptr.h"
-// gen_amalgamated expanded: #include "perfetto/base/export.h"
-
-namespace perfetto {
-namespace protos {
-namespace gen {
-class ChromeRendererSchedulerState;
-enum ChromeRAILMode : int;
-}  // namespace perfetto
-}  // namespace protos
-}  // namespace gen
-
-namespace protozero {
-class Message;
-}  // namespace protozero
-
-namespace perfetto {
-namespace protos {
-namespace gen {
-enum ChromeRAILMode : int {
-  RAIL_MODE_NONE = 0,
-  RAIL_MODE_RESPONSE = 1,
-  RAIL_MODE_ANIMATION = 2,
-  RAIL_MODE_IDLE = 3,
-  RAIL_MODE_LOAD = 4,
-};
-
-class PERFETTO_EXPORT ChromeRendererSchedulerState : public ::protozero::CppMessageObj {
- public:
-  enum FieldNumbers {
-    kRailModeFieldNumber = 1,
-  };
-
-  ChromeRendererSchedulerState();
-  ~ChromeRendererSchedulerState() override;
-  ChromeRendererSchedulerState(ChromeRendererSchedulerState&&) noexcept;
-  ChromeRendererSchedulerState& operator=(ChromeRendererSchedulerState&&);
-  ChromeRendererSchedulerState(const ChromeRendererSchedulerState&);
-  ChromeRendererSchedulerState& operator=(const ChromeRendererSchedulerState&);
-  bool operator==(const ChromeRendererSchedulerState&) const;
-  bool operator!=(const ChromeRendererSchedulerState& other) const { return !(*this == other); }
-
-  bool ParseFromArray(const void*, size_t) override;
-  std::string SerializeAsString() const override;
-  std::vector<uint8_t> SerializeAsArray() const override;
-  void Serialize(::protozero::Message*) const;
-
-  bool has_rail_mode() const { return _has_field_[1]; }
-  ChromeRAILMode rail_mode() const { return rail_mode_; }
-  void set_rail_mode(ChromeRAILMode value) { rail_mode_ = value; _has_field_.set(1); }
-
- private:
-  ChromeRAILMode rail_mode_{};
-
-  // Allows to preserve unknown protobuf fields for compatibility
-  // with future versions of .proto files.
-  std::string unknown_fields_;
-
-  std::bitset<2> _has_field_{};
-};
-
-}  // namespace perfetto
-}  // namespace protos
-}  // namespace gen
-
-#endif  // PERFETTO_PROTOS_PROTOS_PERFETTO_TRACE_TRACK_EVENT_CHROME_RENDERER_SCHEDULER_STATE_PROTO_CPP_H_
-// gen_amalgamated expanded: #include "perfetto/protozero/message.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/packed_repeated_fields.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/proto_decoder.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/scattered_heap_buffer.h"
-// DO NOT EDIT. Autogenerated by Perfetto cppgen_plugin
-#if defined(__GNUC__) || defined(__clang__)
-#pragma GCC diagnostic push
-#pragma GCC diagnostic ignored "-Wfloat-equal"
-#endif
-// gen_amalgamated expanded: #include "protos/perfetto/trace/track_event/chrome_renderer_scheduler_state.gen.h"
-
-namespace perfetto {
-namespace protos {
-namespace gen {
-
-ChromeRendererSchedulerState::ChromeRendererSchedulerState() = default;
-ChromeRendererSchedulerState::~ChromeRendererSchedulerState() = default;
-ChromeRendererSchedulerState::ChromeRendererSchedulerState(const ChromeRendererSchedulerState&) = default;
-ChromeRendererSchedulerState& ChromeRendererSchedulerState::operator=(const ChromeRendererSchedulerState&) = default;
-ChromeRendererSchedulerState::ChromeRendererSchedulerState(ChromeRendererSchedulerState&&) noexcept = default;
-ChromeRendererSchedulerState& ChromeRendererSchedulerState::operator=(ChromeRendererSchedulerState&&) = default;
-
-bool ChromeRendererSchedulerState::operator==(const ChromeRendererSchedulerState& other) const {
-  return unknown_fields_ == other.unknown_fields_
-   && rail_mode_ == other.rail_mode_;
-}
-
-bool ChromeRendererSchedulerState::ParseFromArray(const void* raw, size_t size) {
-  unknown_fields_.clear();
-  bool packed_error = false;
-
-  ::protozero::ProtoDecoder dec(raw, size);
-  for (auto field = dec.ReadField(); field.valid(); field = dec.ReadField()) {
-    if (field.id() < _has_field_.size()) {
-      _has_field_.set(field.id());
-    }
-    switch (field.id()) {
-      case 1 /* rail_mode */:
-        field.get(&rail_mode_);
-        break;
-      default:
-        field.SerializeAndAppendTo(&unknown_fields_);
-        break;
-    }
-  }
-  return !packed_error && !dec.bytes_left();
-}
-
-std::string ChromeRendererSchedulerState::SerializeAsString() const {
-  ::protozero::HeapBuffered<::protozero::Message> msg;
-  Serialize(msg.get());
-  return msg.SerializeAsString();
-}
-
-std::vector<uint8_t> ChromeRendererSchedulerState::SerializeAsArray() const {
-  ::protozero::HeapBuffered<::protozero::Message> msg;
-  Serialize(msg.get());
-  return msg.SerializeAsArray();
-}
-
-void ChromeRendererSchedulerState::Serialize(::protozero::Message* msg) const {
-  // Field 1: rail_mode
-  if (_has_field_[1]) {
-    msg->AppendVarInt(1, rail_mode_);
-  }
-
-  msg->AppendRawProtoBytes(unknown_fields_.data(), unknown_fields_.size());
-}
-
-}  // namespace perfetto
-}  // namespace protos
-}  // namespace gen
-#if defined(__GNUC__) || defined(__clang__)
-#pragma GCC diagnostic pop
-#endif
-// gen_amalgamated begin source: gen/protos/perfetto/trace/track_event/chrome_thread_descriptor.gen.cc
-// gen_amalgamated begin header: gen/protos/perfetto/trace/track_event/chrome_thread_descriptor.gen.h
-// DO NOT EDIT. Autogenerated by Perfetto cppgen_plugin
-#ifndef PERFETTO_PROTOS_PROTOS_PERFETTO_TRACE_TRACK_EVENT_CHROME_THREAD_DESCRIPTOR_PROTO_CPP_H_
-#define PERFETTO_PROTOS_PROTOS_PERFETTO_TRACE_TRACK_EVENT_CHROME_THREAD_DESCRIPTOR_PROTO_CPP_H_
-
-#include <stdint.h>
-#include <bitset>
-#include <vector>
-#include <string>
-#include <type_traits>
-
-// gen_amalgamated expanded: #include "perfetto/protozero/cpp_message_obj.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/copyable_ptr.h"
-// gen_amalgamated expanded: #include "perfetto/base/export.h"
-
-namespace perfetto {
-namespace protos {
-namespace gen {
-class ChromeThreadDescriptor;
-enum ChromeThreadDescriptor_ThreadType : int;
-}  // namespace perfetto
-}  // namespace protos
-}  // namespace gen
-
-namespace protozero {
-class Message;
-}  // namespace protozero
-
-namespace perfetto {
-namespace protos {
-namespace gen {
-enum ChromeThreadDescriptor_ThreadType : int {
-  ChromeThreadDescriptor_ThreadType_THREAD_UNSPECIFIED = 0,
-  ChromeThreadDescriptor_ThreadType_THREAD_MAIN = 1,
-  ChromeThreadDescriptor_ThreadType_THREAD_IO = 2,
-  ChromeThreadDescriptor_ThreadType_THREAD_POOL_BG_WORKER = 3,
-  ChromeThreadDescriptor_ThreadType_THREAD_POOL_FG_WORKER = 4,
-  ChromeThreadDescriptor_ThreadType_THREAD_POOL_FG_BLOCKING = 5,
-  ChromeThreadDescriptor_ThreadType_THREAD_POOL_BG_BLOCKING = 6,
-  ChromeThreadDescriptor_ThreadType_THREAD_POOL_SERVICE = 7,
-  ChromeThreadDescriptor_ThreadType_THREAD_COMPOSITOR = 8,
-  ChromeThreadDescriptor_ThreadType_THREAD_VIZ_COMPOSITOR = 9,
-  ChromeThreadDescriptor_ThreadType_THREAD_COMPOSITOR_WORKER = 10,
-  ChromeThreadDescriptor_ThreadType_THREAD_SERVICE_WORKER = 11,
-  ChromeThreadDescriptor_ThreadType_THREAD_NETWORK_SERVICE = 12,
-  ChromeThreadDescriptor_ThreadType_THREAD_CHILD_IO = 13,
-  ChromeThreadDescriptor_ThreadType_THREAD_BROWSER_IO = 14,
-  ChromeThreadDescriptor_ThreadType_THREAD_BROWSER_MAIN = 15,
-  ChromeThreadDescriptor_ThreadType_THREAD_RENDERER_MAIN = 16,
-  ChromeThreadDescriptor_ThreadType_THREAD_UTILITY_MAIN = 17,
-  ChromeThreadDescriptor_ThreadType_THREAD_GPU_MAIN = 18,
-  ChromeThreadDescriptor_ThreadType_THREAD_CACHE_BLOCKFILE = 19,
-  ChromeThreadDescriptor_ThreadType_THREAD_MEDIA = 20,
-  ChromeThreadDescriptor_ThreadType_THREAD_AUDIO_OUTPUTDEVICE = 21,
-  ChromeThreadDescriptor_ThreadType_THREAD_AUDIO_INPUTDEVICE = 22,
-  ChromeThreadDescriptor_ThreadType_THREAD_GPU_MEMORY = 23,
-  ChromeThreadDescriptor_ThreadType_THREAD_GPU_VSYNC = 24,
-  ChromeThreadDescriptor_ThreadType_THREAD_DXA_VIDEODECODER = 25,
-  ChromeThreadDescriptor_ThreadType_THREAD_BROWSER_WATCHDOG = 26,
-  ChromeThreadDescriptor_ThreadType_THREAD_WEBRTC_NETWORK = 27,
-  ChromeThreadDescriptor_ThreadType_THREAD_WINDOW_OWNER = 28,
-  ChromeThreadDescriptor_ThreadType_THREAD_WEBRTC_SIGNALING = 29,
-  ChromeThreadDescriptor_ThreadType_THREAD_WEBRTC_WORKER = 30,
-  ChromeThreadDescriptor_ThreadType_THREAD_PPAPI_MAIN = 31,
-  ChromeThreadDescriptor_ThreadType_THREAD_GPU_WATCHDOG = 32,
-  ChromeThreadDescriptor_ThreadType_THREAD_SWAPPER = 33,
-  ChromeThreadDescriptor_ThreadType_THREAD_GAMEPAD_POLLING = 34,
-  ChromeThreadDescriptor_ThreadType_THREAD_WEBCRYPTO = 35,
-  ChromeThreadDescriptor_ThreadType_THREAD_DATABASE = 36,
-  ChromeThreadDescriptor_ThreadType_THREAD_PROXYRESOLVER = 37,
-  ChromeThreadDescriptor_ThreadType_THREAD_DEVTOOLSADB = 38,
-  ChromeThreadDescriptor_ThreadType_THREAD_NETWORKCONFIGWATCHER = 39,
-  ChromeThreadDescriptor_ThreadType_THREAD_WASAPI_RENDER = 40,
-  ChromeThreadDescriptor_ThreadType_THREAD_MEMORY_INFRA = 50,
-  ChromeThreadDescriptor_ThreadType_THREAD_SAMPLING_PROFILER = 51,
-};
-
-class PERFETTO_EXPORT ChromeThreadDescriptor : public ::protozero::CppMessageObj {
- public:
-  using ThreadType = ChromeThreadDescriptor_ThreadType;
-  static constexpr auto THREAD_UNSPECIFIED = ChromeThreadDescriptor_ThreadType_THREAD_UNSPECIFIED;
-  static constexpr auto THREAD_MAIN = ChromeThreadDescriptor_ThreadType_THREAD_MAIN;
-  static constexpr auto THREAD_IO = ChromeThreadDescriptor_ThreadType_THREAD_IO;
-  static constexpr auto THREAD_POOL_BG_WORKER = ChromeThreadDescriptor_ThreadType_THREAD_POOL_BG_WORKER;
-  static constexpr auto THREAD_POOL_FG_WORKER = ChromeThreadDescriptor_ThreadType_THREAD_POOL_FG_WORKER;
-  static constexpr auto THREAD_POOL_FG_BLOCKING = ChromeThreadDescriptor_ThreadType_THREAD_POOL_FG_BLOCKING;
-  static constexpr auto THREAD_POOL_BG_BLOCKING = ChromeThreadDescriptor_ThreadType_THREAD_POOL_BG_BLOCKING;
-  static constexpr auto THREAD_POOL_SERVICE = ChromeThreadDescriptor_ThreadType_THREAD_POOL_SERVICE;
-  static constexpr auto THREAD_COMPOSITOR = ChromeThreadDescriptor_ThreadType_THREAD_COMPOSITOR;
-  static constexpr auto THREAD_VIZ_COMPOSITOR = ChromeThreadDescriptor_ThreadType_THREAD_VIZ_COMPOSITOR;
-  static constexpr auto THREAD_COMPOSITOR_WORKER = ChromeThreadDescriptor_ThreadType_THREAD_COMPOSITOR_WORKER;
-  static constexpr auto THREAD_SERVICE_WORKER = ChromeThreadDescriptor_ThreadType_THREAD_SERVICE_WORKER;
-  static constexpr auto THREAD_NETWORK_SERVICE = ChromeThreadDescriptor_ThreadType_THREAD_NETWORK_SERVICE;
-  static constexpr auto THREAD_CHILD_IO = ChromeThreadDescriptor_ThreadType_THREAD_CHILD_IO;
-  static constexpr auto THREAD_BROWSER_IO = ChromeThreadDescriptor_ThreadType_THREAD_BROWSER_IO;
-  static constexpr auto THREAD_BROWSER_MAIN = ChromeThreadDescriptor_ThreadType_THREAD_BROWSER_MAIN;
-  static constexpr auto THREAD_RENDERER_MAIN = ChromeThreadDescriptor_ThreadType_THREAD_RENDERER_MAIN;
-  static constexpr auto THREAD_UTILITY_MAIN = ChromeThreadDescriptor_ThreadType_THREAD_UTILITY_MAIN;
-  static constexpr auto THREAD_GPU_MAIN = ChromeThreadDescriptor_ThreadType_THREAD_GPU_MAIN;
-  static constexpr auto THREAD_CACHE_BLOCKFILE = ChromeThreadDescriptor_ThreadType_THREAD_CACHE_BLOCKFILE;
-  static constexpr auto THREAD_MEDIA = ChromeThreadDescriptor_ThreadType_THREAD_MEDIA;
-  static constexpr auto THREAD_AUDIO_OUTPUTDEVICE = ChromeThreadDescriptor_ThreadType_THREAD_AUDIO_OUTPUTDEVICE;
-  static constexpr auto THREAD_AUDIO_INPUTDEVICE = ChromeThreadDescriptor_ThreadType_THREAD_AUDIO_INPUTDEVICE;
-  static constexpr auto THREAD_GPU_MEMORY = ChromeThreadDescriptor_ThreadType_THREAD_GPU_MEMORY;
-  static constexpr auto THREAD_GPU_VSYNC = ChromeThreadDescriptor_ThreadType_THREAD_GPU_VSYNC;
-  static constexpr auto THREAD_DXA_VIDEODECODER = ChromeThreadDescriptor_ThreadType_THREAD_DXA_VIDEODECODER;
-  static constexpr auto THREAD_BROWSER_WATCHDOG = ChromeThreadDescriptor_ThreadType_THREAD_BROWSER_WATCHDOG;
-  static constexpr auto THREAD_WEBRTC_NETWORK = ChromeThreadDescriptor_ThreadType_THREAD_WEBRTC_NETWORK;
-  static constexpr auto THREAD_WINDOW_OWNER = ChromeThreadDescriptor_ThreadType_THREAD_WINDOW_OWNER;
-  static constexpr auto THREAD_WEBRTC_SIGNALING = ChromeThreadDescriptor_ThreadType_THREAD_WEBRTC_SIGNALING;
-  static constexpr auto THREAD_WEBRTC_WORKER = ChromeThreadDescriptor_ThreadType_THREAD_WEBRTC_WORKER;
-  static constexpr auto THREAD_PPAPI_MAIN = ChromeThreadDescriptor_ThreadType_THREAD_PPAPI_MAIN;
-  static constexpr auto THREAD_GPU_WATCHDOG = ChromeThreadDescriptor_ThreadType_THREAD_GPU_WATCHDOG;
-  static constexpr auto THREAD_SWAPPER = ChromeThreadDescriptor_ThreadType_THREAD_SWAPPER;
-  static constexpr auto THREAD_GAMEPAD_POLLING = ChromeThreadDescriptor_ThreadType_THREAD_GAMEPAD_POLLING;
-  static constexpr auto THREAD_WEBCRYPTO = ChromeThreadDescriptor_ThreadType_THREAD_WEBCRYPTO;
-  static constexpr auto THREAD_DATABASE = ChromeThreadDescriptor_ThreadType_THREAD_DATABASE;
-  static constexpr auto THREAD_PROXYRESOLVER = ChromeThreadDescriptor_ThreadType_THREAD_PROXYRESOLVER;
-  static constexpr auto THREAD_DEVTOOLSADB = ChromeThreadDescriptor_ThreadType_THREAD_DEVTOOLSADB;
-  static constexpr auto THREAD_NETWORKCONFIGWATCHER = ChromeThreadDescriptor_ThreadType_THREAD_NETWORKCONFIGWATCHER;
-  static constexpr auto THREAD_WASAPI_RENDER = ChromeThreadDescriptor_ThreadType_THREAD_WASAPI_RENDER;
-  static constexpr auto THREAD_MEMORY_INFRA = ChromeThreadDescriptor_ThreadType_THREAD_MEMORY_INFRA;
-  static constexpr auto THREAD_SAMPLING_PROFILER = ChromeThreadDescriptor_ThreadType_THREAD_SAMPLING_PROFILER;
-  static constexpr auto ThreadType_MIN = ChromeThreadDescriptor_ThreadType_THREAD_UNSPECIFIED;
-  static constexpr auto ThreadType_MAX = ChromeThreadDescriptor_ThreadType_THREAD_SAMPLING_PROFILER;
-  enum FieldNumbers {
-    kThreadTypeFieldNumber = 1,
-    kLegacySortIndexFieldNumber = 2,
-  };
-
-  ChromeThreadDescriptor();
-  ~ChromeThreadDescriptor() override;
-  ChromeThreadDescriptor(ChromeThreadDescriptor&&) noexcept;
-  ChromeThreadDescriptor& operator=(ChromeThreadDescriptor&&);
-  ChromeThreadDescriptor(const ChromeThreadDescriptor&);
-  ChromeThreadDescriptor& operator=(const ChromeThreadDescriptor&);
-  bool operator==(const ChromeThreadDescriptor&) const;
-  bool operator!=(const ChromeThreadDescriptor& other) const { return !(*this == other); }
-
-  bool ParseFromArray(const void*, size_t) override;
-  std::string SerializeAsString() const override;
-  std::vector<uint8_t> SerializeAsArray() const override;
-  void Serialize(::protozero::Message*) const;
-
-  bool has_thread_type() const { return _has_field_[1]; }
-  ChromeThreadDescriptor_ThreadType thread_type() const { return thread_type_; }
-  void set_thread_type(ChromeThreadDescriptor_ThreadType value) { thread_type_ = value; _has_field_.set(1); }
-
-  bool has_legacy_sort_index() const { return _has_field_[2]; }
-  int32_t legacy_sort_index() const { return legacy_sort_index_; }
-  void set_legacy_sort_index(int32_t value) { legacy_sort_index_ = value; _has_field_.set(2); }
-
- private:
-  ChromeThreadDescriptor_ThreadType thread_type_{};
-  int32_t legacy_sort_index_{};
-
-  // Allows to preserve unknown protobuf fields for compatibility
-  // with future versions of .proto files.
-  std::string unknown_fields_;
-
-  std::bitset<3> _has_field_{};
-};
-
-}  // namespace perfetto
-}  // namespace protos
-}  // namespace gen
-
-#endif  // PERFETTO_PROTOS_PROTOS_PERFETTO_TRACE_TRACK_EVENT_CHROME_THREAD_DESCRIPTOR_PROTO_CPP_H_
-// gen_amalgamated expanded: #include "perfetto/protozero/message.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/packed_repeated_fields.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/proto_decoder.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/scattered_heap_buffer.h"
-// DO NOT EDIT. Autogenerated by Perfetto cppgen_plugin
-#if defined(__GNUC__) || defined(__clang__)
-#pragma GCC diagnostic push
-#pragma GCC diagnostic ignored "-Wfloat-equal"
-#endif
-// gen_amalgamated expanded: #include "protos/perfetto/trace/track_event/chrome_thread_descriptor.gen.h"
-
-namespace perfetto {
-namespace protos {
-namespace gen {
-
-ChromeThreadDescriptor::ChromeThreadDescriptor() = default;
-ChromeThreadDescriptor::~ChromeThreadDescriptor() = default;
-ChromeThreadDescriptor::ChromeThreadDescriptor(const ChromeThreadDescriptor&) = default;
-ChromeThreadDescriptor& ChromeThreadDescriptor::operator=(const ChromeThreadDescriptor&) = default;
-ChromeThreadDescriptor::ChromeThreadDescriptor(ChromeThreadDescriptor&&) noexcept = default;
-ChromeThreadDescriptor& ChromeThreadDescriptor::operator=(ChromeThreadDescriptor&&) = default;
-
-bool ChromeThreadDescriptor::operator==(const ChromeThreadDescriptor& other) const {
-  return unknown_fields_ == other.unknown_fields_
-   && thread_type_ == other.thread_type_
-   && legacy_sort_index_ == other.legacy_sort_index_;
-}
-
-bool ChromeThreadDescriptor::ParseFromArray(const void* raw, size_t size) {
-  unknown_fields_.clear();
-  bool packed_error = false;
-
-  ::protozero::ProtoDecoder dec(raw, size);
-  for (auto field = dec.ReadField(); field.valid(); field = dec.ReadField()) {
-    if (field.id() < _has_field_.size()) {
-      _has_field_.set(field.id());
-    }
-    switch (field.id()) {
-      case 1 /* thread_type */:
-        field.get(&thread_type_);
-        break;
-      case 2 /* legacy_sort_index */:
-        field.get(&legacy_sort_index_);
-        break;
-      default:
-        field.SerializeAndAppendTo(&unknown_fields_);
-        break;
-    }
-  }
-  return !packed_error && !dec.bytes_left();
-}
-
-std::string ChromeThreadDescriptor::SerializeAsString() const {
-  ::protozero::HeapBuffered<::protozero::Message> msg;
-  Serialize(msg.get());
-  return msg.SerializeAsString();
-}
-
-std::vector<uint8_t> ChromeThreadDescriptor::SerializeAsArray() const {
-  ::protozero::HeapBuffered<::protozero::Message> msg;
-  Serialize(msg.get());
-  return msg.SerializeAsArray();
-}
-
-void ChromeThreadDescriptor::Serialize(::protozero::Message* msg) const {
-  // Field 1: thread_type
-  if (_has_field_[1]) {
-    msg->AppendVarInt(1, thread_type_);
-  }
-
-  // Field 2: legacy_sort_index
-  if (_has_field_[2]) {
-    msg->AppendVarInt(2, legacy_sort_index_);
-  }
-
-  msg->AppendRawProtoBytes(unknown_fields_.data(), unknown_fields_.size());
-}
-
-}  // namespace perfetto
-}  // namespace protos
-}  // namespace gen
-#if defined(__GNUC__) || defined(__clang__)
-#pragma GCC diagnostic pop
-#endif
-// gen_amalgamated begin source: gen/protos/perfetto/trace/track_event/chrome_user_event.gen.cc
-// gen_amalgamated begin header: gen/protos/perfetto/trace/track_event/chrome_user_event.gen.h
-// DO NOT EDIT. Autogenerated by Perfetto cppgen_plugin
-#ifndef PERFETTO_PROTOS_PROTOS_PERFETTO_TRACE_TRACK_EVENT_CHROME_USER_EVENT_PROTO_CPP_H_
-#define PERFETTO_PROTOS_PROTOS_PERFETTO_TRACE_TRACK_EVENT_CHROME_USER_EVENT_PROTO_CPP_H_
-
-#include <stdint.h>
-#include <bitset>
-#include <vector>
-#include <string>
-#include <type_traits>
-
-// gen_amalgamated expanded: #include "perfetto/protozero/cpp_message_obj.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/copyable_ptr.h"
-// gen_amalgamated expanded: #include "perfetto/base/export.h"
-
-namespace perfetto {
-namespace protos {
-namespace gen {
-class ChromeUserEvent;
-}  // namespace perfetto
-}  // namespace protos
-}  // namespace gen
-
-namespace protozero {
-class Message;
-}  // namespace protozero
-
-namespace perfetto {
-namespace protos {
-namespace gen {
-
-class PERFETTO_EXPORT ChromeUserEvent : public ::protozero::CppMessageObj {
- public:
-  enum FieldNumbers {
-    kActionFieldNumber = 1,
-    kActionHashFieldNumber = 2,
-  };
-
-  ChromeUserEvent();
-  ~ChromeUserEvent() override;
-  ChromeUserEvent(ChromeUserEvent&&) noexcept;
-  ChromeUserEvent& operator=(ChromeUserEvent&&);
-  ChromeUserEvent(const ChromeUserEvent&);
-  ChromeUserEvent& operator=(const ChromeUserEvent&);
-  bool operator==(const ChromeUserEvent&) const;
-  bool operator!=(const ChromeUserEvent& other) const { return !(*this == other); }
-
-  bool ParseFromArray(const void*, size_t) override;
-  std::string SerializeAsString() const override;
-  std::vector<uint8_t> SerializeAsArray() const override;
-  void Serialize(::protozero::Message*) const;
-
-  bool has_action() const { return _has_field_[1]; }
-  const std::string& action() const { return action_; }
-  void set_action(const std::string& value) { action_ = value; _has_field_.set(1); }
-
-  bool has_action_hash() const { return _has_field_[2]; }
-  uint64_t action_hash() const { return action_hash_; }
-  void set_action_hash(uint64_t value) { action_hash_ = value; _has_field_.set(2); }
-
- private:
-  std::string action_{};
-  uint64_t action_hash_{};
-
-  // Allows to preserve unknown protobuf fields for compatibility
-  // with future versions of .proto files.
-  std::string unknown_fields_;
-
-  std::bitset<3> _has_field_{};
-};
-
-}  // namespace perfetto
-}  // namespace protos
-}  // namespace gen
-
-#endif  // PERFETTO_PROTOS_PROTOS_PERFETTO_TRACE_TRACK_EVENT_CHROME_USER_EVENT_PROTO_CPP_H_
-// gen_amalgamated expanded: #include "perfetto/protozero/message.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/packed_repeated_fields.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/proto_decoder.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/scattered_heap_buffer.h"
-// DO NOT EDIT. Autogenerated by Perfetto cppgen_plugin
-#if defined(__GNUC__) || defined(__clang__)
-#pragma GCC diagnostic push
-#pragma GCC diagnostic ignored "-Wfloat-equal"
-#endif
-// gen_amalgamated expanded: #include "protos/perfetto/trace/track_event/chrome_user_event.gen.h"
-
-namespace perfetto {
-namespace protos {
-namespace gen {
-
-ChromeUserEvent::ChromeUserEvent() = default;
-ChromeUserEvent::~ChromeUserEvent() = default;
-ChromeUserEvent::ChromeUserEvent(const ChromeUserEvent&) = default;
-ChromeUserEvent& ChromeUserEvent::operator=(const ChromeUserEvent&) = default;
-ChromeUserEvent::ChromeUserEvent(ChromeUserEvent&&) noexcept = default;
-ChromeUserEvent& ChromeUserEvent::operator=(ChromeUserEvent&&) = default;
-
-bool ChromeUserEvent::operator==(const ChromeUserEvent& other) const {
-  return unknown_fields_ == other.unknown_fields_
-   && action_ == other.action_
-   && action_hash_ == other.action_hash_;
-}
-
-bool ChromeUserEvent::ParseFromArray(const void* raw, size_t size) {
-  unknown_fields_.clear();
-  bool packed_error = false;
-
-  ::protozero::ProtoDecoder dec(raw, size);
-  for (auto field = dec.ReadField(); field.valid(); field = dec.ReadField()) {
-    if (field.id() < _has_field_.size()) {
-      _has_field_.set(field.id());
-    }
-    switch (field.id()) {
-      case 1 /* action */:
-        field.get(&action_);
-        break;
-      case 2 /* action_hash */:
-        field.get(&action_hash_);
-        break;
-      default:
-        field.SerializeAndAppendTo(&unknown_fields_);
-        break;
-    }
-  }
-  return !packed_error && !dec.bytes_left();
-}
-
-std::string ChromeUserEvent::SerializeAsString() const {
-  ::protozero::HeapBuffered<::protozero::Message> msg;
-  Serialize(msg.get());
-  return msg.SerializeAsString();
-}
-
-std::vector<uint8_t> ChromeUserEvent::SerializeAsArray() const {
-  ::protozero::HeapBuffered<::protozero::Message> msg;
-  Serialize(msg.get());
-  return msg.SerializeAsArray();
-}
-
-void ChromeUserEvent::Serialize(::protozero::Message* msg) const {
-  // Field 1: action
-  if (_has_field_[1]) {
-    msg->AppendString(1, action_);
-  }
-
-  // Field 2: action_hash
-  if (_has_field_[2]) {
-    msg->AppendVarInt(2, action_hash_);
-  }
-
-  msg->AppendRawProtoBytes(unknown_fields_.data(), unknown_fields_.size());
-}
-
-}  // namespace perfetto
-}  // namespace protos
-}  // namespace gen
-#if defined(__GNUC__) || defined(__clang__)
-#pragma GCC diagnostic pop
-#endif
-// gen_amalgamated begin source: gen/protos/perfetto/trace/track_event/chrome_window_handle_event_info.gen.cc
-// gen_amalgamated begin header: gen/protos/perfetto/trace/track_event/chrome_window_handle_event_info.gen.h
-// DO NOT EDIT. Autogenerated by Perfetto cppgen_plugin
-#ifndef PERFETTO_PROTOS_PROTOS_PERFETTO_TRACE_TRACK_EVENT_CHROME_WINDOW_HANDLE_EVENT_INFO_PROTO_CPP_H_
-#define PERFETTO_PROTOS_PROTOS_PERFETTO_TRACE_TRACK_EVENT_CHROME_WINDOW_HANDLE_EVENT_INFO_PROTO_CPP_H_
-
-#include <stdint.h>
-#include <bitset>
-#include <vector>
-#include <string>
-#include <type_traits>
-
-// gen_amalgamated expanded: #include "perfetto/protozero/cpp_message_obj.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/copyable_ptr.h"
-// gen_amalgamated expanded: #include "perfetto/base/export.h"
-
-namespace perfetto {
-namespace protos {
-namespace gen {
-class ChromeWindowHandleEventInfo;
-}  // namespace perfetto
-}  // namespace protos
-}  // namespace gen
-
-namespace protozero {
-class Message;
-}  // namespace protozero
-
-namespace perfetto {
-namespace protos {
-namespace gen {
-
-class PERFETTO_EXPORT ChromeWindowHandleEventInfo : public ::protozero::CppMessageObj {
- public:
-  enum FieldNumbers {
-    kDpiFieldNumber = 1,
-    kMessageIdFieldNumber = 2,
-    kHwndPtrFieldNumber = 3,
-  };
-
-  ChromeWindowHandleEventInfo();
-  ~ChromeWindowHandleEventInfo() override;
-  ChromeWindowHandleEventInfo(ChromeWindowHandleEventInfo&&) noexcept;
-  ChromeWindowHandleEventInfo& operator=(ChromeWindowHandleEventInfo&&);
-  ChromeWindowHandleEventInfo(const ChromeWindowHandleEventInfo&);
-  ChromeWindowHandleEventInfo& operator=(const ChromeWindowHandleEventInfo&);
-  bool operator==(const ChromeWindowHandleEventInfo&) const;
-  bool operator!=(const ChromeWindowHandleEventInfo& other) const { return !(*this == other); }
-
-  bool ParseFromArray(const void*, size_t) override;
-  std::string SerializeAsString() const override;
-  std::vector<uint8_t> SerializeAsArray() const override;
-  void Serialize(::protozero::Message*) const;
-
-  bool has_dpi() const { return _has_field_[1]; }
-  uint32_t dpi() const { return dpi_; }
-  void set_dpi(uint32_t value) { dpi_ = value; _has_field_.set(1); }
-
-  bool has_message_id() const { return _has_field_[2]; }
-  uint32_t message_id() const { return message_id_; }
-  void set_message_id(uint32_t value) { message_id_ = value; _has_field_.set(2); }
-
-  bool has_hwnd_ptr() const { return _has_field_[3]; }
-  uint64_t hwnd_ptr() const { return hwnd_ptr_; }
-  void set_hwnd_ptr(uint64_t value) { hwnd_ptr_ = value; _has_field_.set(3); }
-
- private:
-  uint32_t dpi_{};
-  uint32_t message_id_{};
-  uint64_t hwnd_ptr_{};
-
-  // Allows to preserve unknown protobuf fields for compatibility
-  // with future versions of .proto files.
-  std::string unknown_fields_;
-
-  std::bitset<4> _has_field_{};
-};
-
-}  // namespace perfetto
-}  // namespace protos
-}  // namespace gen
-
-#endif  // PERFETTO_PROTOS_PROTOS_PERFETTO_TRACE_TRACK_EVENT_CHROME_WINDOW_HANDLE_EVENT_INFO_PROTO_CPP_H_
-// gen_amalgamated expanded: #include "perfetto/protozero/message.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/packed_repeated_fields.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/proto_decoder.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/scattered_heap_buffer.h"
-// DO NOT EDIT. Autogenerated by Perfetto cppgen_plugin
-#if defined(__GNUC__) || defined(__clang__)
-#pragma GCC diagnostic push
-#pragma GCC diagnostic ignored "-Wfloat-equal"
-#endif
-// gen_amalgamated expanded: #include "protos/perfetto/trace/track_event/chrome_window_handle_event_info.gen.h"
-
-namespace perfetto {
-namespace protos {
-namespace gen {
-
-ChromeWindowHandleEventInfo::ChromeWindowHandleEventInfo() = default;
-ChromeWindowHandleEventInfo::~ChromeWindowHandleEventInfo() = default;
-ChromeWindowHandleEventInfo::ChromeWindowHandleEventInfo(const ChromeWindowHandleEventInfo&) = default;
-ChromeWindowHandleEventInfo& ChromeWindowHandleEventInfo::operator=(const ChromeWindowHandleEventInfo&) = default;
-ChromeWindowHandleEventInfo::ChromeWindowHandleEventInfo(ChromeWindowHandleEventInfo&&) noexcept = default;
-ChromeWindowHandleEventInfo& ChromeWindowHandleEventInfo::operator=(ChromeWindowHandleEventInfo&&) = default;
-
-bool ChromeWindowHandleEventInfo::operator==(const ChromeWindowHandleEventInfo& other) const {
-  return unknown_fields_ == other.unknown_fields_
-   && dpi_ == other.dpi_
-   && message_id_ == other.message_id_
-   && hwnd_ptr_ == other.hwnd_ptr_;
-}
-
-bool ChromeWindowHandleEventInfo::ParseFromArray(const void* raw, size_t size) {
-  unknown_fields_.clear();
-  bool packed_error = false;
-
-  ::protozero::ProtoDecoder dec(raw, size);
-  for (auto field = dec.ReadField(); field.valid(); field = dec.ReadField()) {
-    if (field.id() < _has_field_.size()) {
-      _has_field_.set(field.id());
-    }
-    switch (field.id()) {
-      case 1 /* dpi */:
-        field.get(&dpi_);
-        break;
-      case 2 /* message_id */:
-        field.get(&message_id_);
-        break;
-      case 3 /* hwnd_ptr */:
-        field.get(&hwnd_ptr_);
-        break;
-      default:
-        field.SerializeAndAppendTo(&unknown_fields_);
-        break;
-    }
-  }
-  return !packed_error && !dec.bytes_left();
-}
-
-std::string ChromeWindowHandleEventInfo::SerializeAsString() const {
-  ::protozero::HeapBuffered<::protozero::Message> msg;
-  Serialize(msg.get());
-  return msg.SerializeAsString();
-}
-
-std::vector<uint8_t> ChromeWindowHandleEventInfo::SerializeAsArray() const {
-  ::protozero::HeapBuffered<::protozero::Message> msg;
-  Serialize(msg.get());
-  return msg.SerializeAsArray();
-}
-
-void ChromeWindowHandleEventInfo::Serialize(::protozero::Message* msg) const {
-  // Field 1: dpi
-  if (_has_field_[1]) {
-    msg->AppendVarInt(1, dpi_);
-  }
-
-  // Field 2: message_id
-  if (_has_field_[2]) {
-    msg->AppendVarInt(2, message_id_);
-  }
-
-  // Field 3: hwnd_ptr
-  if (_has_field_[3]) {
-    msg->AppendFixed(3, hwnd_ptr_);
-  }
-
-  msg->AppendRawProtoBytes(unknown_fields_.data(), unknown_fields_.size());
-}
-
-}  // namespace perfetto
-}  // namespace protos
-}  // namespace gen
-#if defined(__GNUC__) || defined(__clang__)
-#pragma GCC diagnostic pop
-#endif
-// gen_amalgamated begin source: gen/protos/perfetto/trace/track_event/counter_descriptor.gen.cc
-// gen_amalgamated begin header: gen/protos/perfetto/trace/track_event/counter_descriptor.gen.h
-// DO NOT EDIT. Autogenerated by Perfetto cppgen_plugin
-#ifndef PERFETTO_PROTOS_PROTOS_PERFETTO_TRACE_TRACK_EVENT_COUNTER_DESCRIPTOR_PROTO_CPP_H_
-#define PERFETTO_PROTOS_PROTOS_PERFETTO_TRACE_TRACK_EVENT_COUNTER_DESCRIPTOR_PROTO_CPP_H_
-
-#include <stdint.h>
-#include <bitset>
-#include <vector>
-#include <string>
-#include <type_traits>
-
-// gen_amalgamated expanded: #include "perfetto/protozero/cpp_message_obj.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/copyable_ptr.h"
-// gen_amalgamated expanded: #include "perfetto/base/export.h"
-
-namespace perfetto {
-namespace protos {
-namespace gen {
-class CounterDescriptor;
-enum CounterDescriptor_BuiltinCounterType : int;
-enum CounterDescriptor_Unit : int;
-}  // namespace perfetto
-}  // namespace protos
-}  // namespace gen
-
-namespace protozero {
-class Message;
-}  // namespace protozero
-
-namespace perfetto {
-namespace protos {
-namespace gen {
-enum CounterDescriptor_BuiltinCounterType : int {
-  CounterDescriptor_BuiltinCounterType_COUNTER_UNSPECIFIED = 0,
-  CounterDescriptor_BuiltinCounterType_COUNTER_THREAD_TIME_NS = 1,
-  CounterDescriptor_BuiltinCounterType_COUNTER_THREAD_INSTRUCTION_COUNT = 2,
-};
-enum CounterDescriptor_Unit : int {
-  CounterDescriptor_Unit_UNIT_UNSPECIFIED = 0,
-  CounterDescriptor_Unit_UNIT_TIME_NS = 1,
-  CounterDescriptor_Unit_UNIT_COUNT = 2,
-  CounterDescriptor_Unit_UNIT_SIZE_BYTES = 3,
-};
-
-class PERFETTO_EXPORT CounterDescriptor : public ::protozero::CppMessageObj {
- public:
-  using BuiltinCounterType = CounterDescriptor_BuiltinCounterType;
-  static constexpr auto COUNTER_UNSPECIFIED = CounterDescriptor_BuiltinCounterType_COUNTER_UNSPECIFIED;
-  static constexpr auto COUNTER_THREAD_TIME_NS = CounterDescriptor_BuiltinCounterType_COUNTER_THREAD_TIME_NS;
-  static constexpr auto COUNTER_THREAD_INSTRUCTION_COUNT = CounterDescriptor_BuiltinCounterType_COUNTER_THREAD_INSTRUCTION_COUNT;
-  static constexpr auto BuiltinCounterType_MIN = CounterDescriptor_BuiltinCounterType_COUNTER_UNSPECIFIED;
-  static constexpr auto BuiltinCounterType_MAX = CounterDescriptor_BuiltinCounterType_COUNTER_THREAD_INSTRUCTION_COUNT;
-  using Unit = CounterDescriptor_Unit;
-  static constexpr auto UNIT_UNSPECIFIED = CounterDescriptor_Unit_UNIT_UNSPECIFIED;
-  static constexpr auto UNIT_TIME_NS = CounterDescriptor_Unit_UNIT_TIME_NS;
-  static constexpr auto UNIT_COUNT = CounterDescriptor_Unit_UNIT_COUNT;
-  static constexpr auto UNIT_SIZE_BYTES = CounterDescriptor_Unit_UNIT_SIZE_BYTES;
-  static constexpr auto Unit_MIN = CounterDescriptor_Unit_UNIT_UNSPECIFIED;
-  static constexpr auto Unit_MAX = CounterDescriptor_Unit_UNIT_SIZE_BYTES;
-  enum FieldNumbers {
-    kTypeFieldNumber = 1,
-    kCategoriesFieldNumber = 2,
-    kUnitFieldNumber = 3,
-    kUnitNameFieldNumber = 6,
-    kUnitMultiplierFieldNumber = 4,
-    kIsIncrementalFieldNumber = 5,
-  };
-
-  CounterDescriptor();
-  ~CounterDescriptor() override;
-  CounterDescriptor(CounterDescriptor&&) noexcept;
-  CounterDescriptor& operator=(CounterDescriptor&&);
-  CounterDescriptor(const CounterDescriptor&);
-  CounterDescriptor& operator=(const CounterDescriptor&);
-  bool operator==(const CounterDescriptor&) const;
-  bool operator!=(const CounterDescriptor& other) const { return !(*this == other); }
-
-  bool ParseFromArray(const void*, size_t) override;
-  std::string SerializeAsString() const override;
-  std::vector<uint8_t> SerializeAsArray() const override;
-  void Serialize(::protozero::Message*) const;
-
-  bool has_type() const { return _has_field_[1]; }
-  CounterDescriptor_BuiltinCounterType type() const { return type_; }
-  void set_type(CounterDescriptor_BuiltinCounterType value) { type_ = value; _has_field_.set(1); }
-
-  const std::vector<std::string>& categories() const { return categories_; }
-  std::vector<std::string>* mutable_categories() { return &categories_; }
-  int categories_size() const { return static_cast<int>(categories_.size()); }
-  void clear_categories() { categories_.clear(); }
-  void add_categories(std::string value) { categories_.emplace_back(value); }
-  std::string* add_categories() { categories_.emplace_back(); return &categories_.back(); }
-
-  bool has_unit() const { return _has_field_[3]; }
-  CounterDescriptor_Unit unit() const { return unit_; }
-  void set_unit(CounterDescriptor_Unit value) { unit_ = value; _has_field_.set(3); }
-
-  bool has_unit_name() const { return _has_field_[6]; }
-  const std::string& unit_name() const { return unit_name_; }
-  void set_unit_name(const std::string& value) { unit_name_ = value; _has_field_.set(6); }
-
-  bool has_unit_multiplier() const { return _has_field_[4]; }
-  int64_t unit_multiplier() const { return unit_multiplier_; }
-  void set_unit_multiplier(int64_t value) { unit_multiplier_ = value; _has_field_.set(4); }
-
-  bool has_is_incremental() const { return _has_field_[5]; }
-  bool is_incremental() const { return is_incremental_; }
-  void set_is_incremental(bool value) { is_incremental_ = value; _has_field_.set(5); }
-
- private:
-  CounterDescriptor_BuiltinCounterType type_{};
-  std::vector<std::string> categories_;
-  CounterDescriptor_Unit unit_{};
-  std::string unit_name_{};
-  int64_t unit_multiplier_{};
-  bool is_incremental_{};
-
-  // Allows to preserve unknown protobuf fields for compatibility
-  // with future versions of .proto files.
-  std::string unknown_fields_;
-
-  std::bitset<7> _has_field_{};
-};
-
-}  // namespace perfetto
-}  // namespace protos
-}  // namespace gen
-
-#endif  // PERFETTO_PROTOS_PROTOS_PERFETTO_TRACE_TRACK_EVENT_COUNTER_DESCRIPTOR_PROTO_CPP_H_
-// gen_amalgamated expanded: #include "perfetto/protozero/message.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/packed_repeated_fields.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/proto_decoder.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/scattered_heap_buffer.h"
-// DO NOT EDIT. Autogenerated by Perfetto cppgen_plugin
-#if defined(__GNUC__) || defined(__clang__)
-#pragma GCC diagnostic push
-#pragma GCC diagnostic ignored "-Wfloat-equal"
-#endif
-// gen_amalgamated expanded: #include "protos/perfetto/trace/track_event/counter_descriptor.gen.h"
-
-namespace perfetto {
-namespace protos {
-namespace gen {
-
-CounterDescriptor::CounterDescriptor() = default;
-CounterDescriptor::~CounterDescriptor() = default;
-CounterDescriptor::CounterDescriptor(const CounterDescriptor&) = default;
-CounterDescriptor& CounterDescriptor::operator=(const CounterDescriptor&) = default;
-CounterDescriptor::CounterDescriptor(CounterDescriptor&&) noexcept = default;
-CounterDescriptor& CounterDescriptor::operator=(CounterDescriptor&&) = default;
-
-bool CounterDescriptor::operator==(const CounterDescriptor& other) const {
-  return unknown_fields_ == other.unknown_fields_
-   && type_ == other.type_
-   && categories_ == other.categories_
-   && unit_ == other.unit_
-   && unit_name_ == other.unit_name_
-   && unit_multiplier_ == other.unit_multiplier_
-   && is_incremental_ == other.is_incremental_;
-}
-
-bool CounterDescriptor::ParseFromArray(const void* raw, size_t size) {
-  categories_.clear();
-  unknown_fields_.clear();
-  bool packed_error = false;
-
-  ::protozero::ProtoDecoder dec(raw, size);
-  for (auto field = dec.ReadField(); field.valid(); field = dec.ReadField()) {
-    if (field.id() < _has_field_.size()) {
-      _has_field_.set(field.id());
-    }
-    switch (field.id()) {
-      case 1 /* type */:
-        field.get(&type_);
-        break;
-      case 2 /* categories */:
-        categories_.emplace_back();
-        field.get(&categories_.back());
-        break;
-      case 3 /* unit */:
-        field.get(&unit_);
-        break;
-      case 6 /* unit_name */:
-        field.get(&unit_name_);
-        break;
-      case 4 /* unit_multiplier */:
-        field.get(&unit_multiplier_);
-        break;
-      case 5 /* is_incremental */:
-        field.get(&is_incremental_);
-        break;
-      default:
-        field.SerializeAndAppendTo(&unknown_fields_);
-        break;
-    }
-  }
-  return !packed_error && !dec.bytes_left();
-}
-
-std::string CounterDescriptor::SerializeAsString() const {
-  ::protozero::HeapBuffered<::protozero::Message> msg;
-  Serialize(msg.get());
-  return msg.SerializeAsString();
-}
-
-std::vector<uint8_t> CounterDescriptor::SerializeAsArray() const {
-  ::protozero::HeapBuffered<::protozero::Message> msg;
-  Serialize(msg.get());
-  return msg.SerializeAsArray();
-}
-
-void CounterDescriptor::Serialize(::protozero::Message* msg) const {
-  // Field 1: type
-  if (_has_field_[1]) {
-    msg->AppendVarInt(1, type_);
-  }
-
-  // Field 2: categories
-  for (auto& it : categories_) {
-    msg->AppendString(2, it);
-  }
-
-  // Field 3: unit
-  if (_has_field_[3]) {
-    msg->AppendVarInt(3, unit_);
-  }
-
-  // Field 6: unit_name
-  if (_has_field_[6]) {
-    msg->AppendString(6, unit_name_);
-  }
-
-  // Field 4: unit_multiplier
-  if (_has_field_[4]) {
-    msg->AppendVarInt(4, unit_multiplier_);
-  }
-
-  // Field 5: is_incremental
-  if (_has_field_[5]) {
-    msg->AppendTinyVarInt(5, is_incremental_);
-  }
-
-  msg->AppendRawProtoBytes(unknown_fields_.data(), unknown_fields_.size());
-}
-
-}  // namespace perfetto
-}  // namespace protos
-}  // namespace gen
-#if defined(__GNUC__) || defined(__clang__)
-#pragma GCC diagnostic pop
-#endif
-// gen_amalgamated begin source: gen/protos/perfetto/trace/track_event/debug_annotation.gen.cc
-// gen_amalgamated begin header: gen/protos/perfetto/trace/track_event/debug_annotation.gen.h
-// DO NOT EDIT. Autogenerated by Perfetto cppgen_plugin
-#ifndef PERFETTO_PROTOS_PROTOS_PERFETTO_TRACE_TRACK_EVENT_DEBUG_ANNOTATION_PROTO_CPP_H_
-#define PERFETTO_PROTOS_PROTOS_PERFETTO_TRACE_TRACK_EVENT_DEBUG_ANNOTATION_PROTO_CPP_H_
-
-#include <stdint.h>
-#include <bitset>
-#include <vector>
-#include <string>
-#include <type_traits>
-
-// gen_amalgamated expanded: #include "perfetto/protozero/cpp_message_obj.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/copyable_ptr.h"
-// gen_amalgamated expanded: #include "perfetto/base/export.h"
-
-namespace perfetto {
-namespace protos {
-namespace gen {
-class DebugAnnotationName;
-class DebugAnnotation;
-class DebugAnnotation_NestedValue;
-enum DebugAnnotation_NestedValue_NestedType : int;
-}  // namespace perfetto
-}  // namespace protos
-}  // namespace gen
-
-namespace protozero {
-class Message;
-}  // namespace protozero
-
-namespace perfetto {
-namespace protos {
-namespace gen {
-enum DebugAnnotation_NestedValue_NestedType : int {
-  DebugAnnotation_NestedValue_NestedType_UNSPECIFIED = 0,
-  DebugAnnotation_NestedValue_NestedType_DICT = 1,
-  DebugAnnotation_NestedValue_NestedType_ARRAY = 2,
-};
-
-class PERFETTO_EXPORT DebugAnnotationName : public ::protozero::CppMessageObj {
- public:
-  enum FieldNumbers {
-    kIidFieldNumber = 1,
-    kNameFieldNumber = 2,
-  };
-
-  DebugAnnotationName();
-  ~DebugAnnotationName() override;
-  DebugAnnotationName(DebugAnnotationName&&) noexcept;
-  DebugAnnotationName& operator=(DebugAnnotationName&&);
-  DebugAnnotationName(const DebugAnnotationName&);
-  DebugAnnotationName& operator=(const DebugAnnotationName&);
-  bool operator==(const DebugAnnotationName&) const;
-  bool operator!=(const DebugAnnotationName& other) const { return !(*this == other); }
-
-  bool ParseFromArray(const void*, size_t) override;
-  std::string SerializeAsString() const override;
-  std::vector<uint8_t> SerializeAsArray() const override;
-  void Serialize(::protozero::Message*) const;
-
-  bool has_iid() const { return _has_field_[1]; }
-  uint64_t iid() const { return iid_; }
-  void set_iid(uint64_t value) { iid_ = value; _has_field_.set(1); }
-
-  bool has_name() const { return _has_field_[2]; }
-  const std::string& name() const { return name_; }
-  void set_name(const std::string& value) { name_ = value; _has_field_.set(2); }
-
- private:
-  uint64_t iid_{};
-  std::string name_{};
-
-  // Allows to preserve unknown protobuf fields for compatibility
-  // with future versions of .proto files.
-  std::string unknown_fields_;
-
-  std::bitset<3> _has_field_{};
-};
-
-
-class PERFETTO_EXPORT DebugAnnotation : public ::protozero::CppMessageObj {
- public:
-  using NestedValue = DebugAnnotation_NestedValue;
-  enum FieldNumbers {
-    kNameIidFieldNumber = 1,
-    kNameFieldNumber = 10,
-    kBoolValueFieldNumber = 2,
-    kUintValueFieldNumber = 3,
-    kIntValueFieldNumber = 4,
-    kDoubleValueFieldNumber = 5,
-    kStringValueFieldNumber = 6,
-    kPointerValueFieldNumber = 7,
-    kNestedValueFieldNumber = 8,
-    kLegacyJsonValueFieldNumber = 9,
-    kDictEntriesFieldNumber = 11,
-    kArrayValuesFieldNumber = 12,
-  };
-
-  DebugAnnotation();
-  ~DebugAnnotation() override;
-  DebugAnnotation(DebugAnnotation&&) noexcept;
-  DebugAnnotation& operator=(DebugAnnotation&&);
-  DebugAnnotation(const DebugAnnotation&);
-  DebugAnnotation& operator=(const DebugAnnotation&);
-  bool operator==(const DebugAnnotation&) const;
-  bool operator!=(const DebugAnnotation& other) const { return !(*this == other); }
-
-  bool ParseFromArray(const void*, size_t) override;
-  std::string SerializeAsString() const override;
-  std::vector<uint8_t> SerializeAsArray() const override;
-  void Serialize(::protozero::Message*) const;
-
-  bool has_name_iid() const { return _has_field_[1]; }
-  uint64_t name_iid() const { return name_iid_; }
-  void set_name_iid(uint64_t value) { name_iid_ = value; _has_field_.set(1); }
-
-  bool has_name() const { return _has_field_[10]; }
-  const std::string& name() const { return name_; }
-  void set_name(const std::string& value) { name_ = value; _has_field_.set(10); }
-
-  bool has_bool_value() const { return _has_field_[2]; }
-  bool bool_value() const { return bool_value_; }
-  void set_bool_value(bool value) { bool_value_ = value; _has_field_.set(2); }
-
-  bool has_uint_value() const { return _has_field_[3]; }
-  uint64_t uint_value() const { return uint_value_; }
-  void set_uint_value(uint64_t value) { uint_value_ = value; _has_field_.set(3); }
-
-  bool has_int_value() const { return _has_field_[4]; }
-  int64_t int_value() const { return int_value_; }
-  void set_int_value(int64_t value) { int_value_ = value; _has_field_.set(4); }
-
-  bool has_double_value() const { return _has_field_[5]; }
-  double double_value() const { return double_value_; }
-  void set_double_value(double value) { double_value_ = value; _has_field_.set(5); }
-
-  bool has_string_value() const { return _has_field_[6]; }
-  const std::string& string_value() const { return string_value_; }
-  void set_string_value(const std::string& value) { string_value_ = value; _has_field_.set(6); }
-
-  bool has_pointer_value() const { return _has_field_[7]; }
-  uint64_t pointer_value() const { return pointer_value_; }
-  void set_pointer_value(uint64_t value) { pointer_value_ = value; _has_field_.set(7); }
-
-  bool has_nested_value() const { return _has_field_[8]; }
-  const DebugAnnotation_NestedValue& nested_value() const { return *nested_value_; }
-  DebugAnnotation_NestedValue* mutable_nested_value() { _has_field_.set(8); return nested_value_.get(); }
-
-  bool has_legacy_json_value() const { return _has_field_[9]; }
-  const std::string& legacy_json_value() const { return legacy_json_value_; }
-  void set_legacy_json_value(const std::string& value) { legacy_json_value_ = value; _has_field_.set(9); }
-
-  const std::vector<DebugAnnotation>& dict_entries() const { return dict_entries_; }
-  std::vector<DebugAnnotation>* mutable_dict_entries() { return &dict_entries_; }
-  int dict_entries_size() const;
-  void clear_dict_entries();
-  DebugAnnotation* add_dict_entries();
-
-  const std::vector<DebugAnnotation>& array_values() const { return array_values_; }
-  std::vector<DebugAnnotation>* mutable_array_values() { return &array_values_; }
-  int array_values_size() const;
-  void clear_array_values();
-  DebugAnnotation* add_array_values();
-
- private:
-  uint64_t name_iid_{};
-  std::string name_{};
-  bool bool_value_{};
-  uint64_t uint_value_{};
-  int64_t int_value_{};
-  double double_value_{};
-  std::string string_value_{};
-  uint64_t pointer_value_{};
-  ::protozero::CopyablePtr<DebugAnnotation_NestedValue> nested_value_;
-  std::string legacy_json_value_{};
-  std::vector<DebugAnnotation> dict_entries_;
-  std::vector<DebugAnnotation> array_values_;
-
-  // Allows to preserve unknown protobuf fields for compatibility
-  // with future versions of .proto files.
-  std::string unknown_fields_;
-
-  std::bitset<13> _has_field_{};
-};
-
-
-class PERFETTO_EXPORT DebugAnnotation_NestedValue : public ::protozero::CppMessageObj {
- public:
-  using NestedType = DebugAnnotation_NestedValue_NestedType;
-  static constexpr auto UNSPECIFIED = DebugAnnotation_NestedValue_NestedType_UNSPECIFIED;
-  static constexpr auto DICT = DebugAnnotation_NestedValue_NestedType_DICT;
-  static constexpr auto ARRAY = DebugAnnotation_NestedValue_NestedType_ARRAY;
-  static constexpr auto NestedType_MIN = DebugAnnotation_NestedValue_NestedType_UNSPECIFIED;
-  static constexpr auto NestedType_MAX = DebugAnnotation_NestedValue_NestedType_ARRAY;
-  enum FieldNumbers {
-    kNestedTypeFieldNumber = 1,
-    kDictKeysFieldNumber = 2,
-    kDictValuesFieldNumber = 3,
-    kArrayValuesFieldNumber = 4,
-    kIntValueFieldNumber = 5,
-    kDoubleValueFieldNumber = 6,
-    kBoolValueFieldNumber = 7,
-    kStringValueFieldNumber = 8,
-  };
-
-  DebugAnnotation_NestedValue();
-  ~DebugAnnotation_NestedValue() override;
-  DebugAnnotation_NestedValue(DebugAnnotation_NestedValue&&) noexcept;
-  DebugAnnotation_NestedValue& operator=(DebugAnnotation_NestedValue&&);
-  DebugAnnotation_NestedValue(const DebugAnnotation_NestedValue&);
-  DebugAnnotation_NestedValue& operator=(const DebugAnnotation_NestedValue&);
-  bool operator==(const DebugAnnotation_NestedValue&) const;
-  bool operator!=(const DebugAnnotation_NestedValue& other) const { return !(*this == other); }
-
-  bool ParseFromArray(const void*, size_t) override;
-  std::string SerializeAsString() const override;
-  std::vector<uint8_t> SerializeAsArray() const override;
-  void Serialize(::protozero::Message*) const;
-
-  bool has_nested_type() const { return _has_field_[1]; }
-  DebugAnnotation_NestedValue_NestedType nested_type() const { return nested_type_; }
-  void set_nested_type(DebugAnnotation_NestedValue_NestedType value) { nested_type_ = value; _has_field_.set(1); }
-
-  const std::vector<std::string>& dict_keys() const { return dict_keys_; }
-  std::vector<std::string>* mutable_dict_keys() { return &dict_keys_; }
-  int dict_keys_size() const { return static_cast<int>(dict_keys_.size()); }
-  void clear_dict_keys() { dict_keys_.clear(); }
-  void add_dict_keys(std::string value) { dict_keys_.emplace_back(value); }
-  std::string* add_dict_keys() { dict_keys_.emplace_back(); return &dict_keys_.back(); }
-
-  const std::vector<DebugAnnotation_NestedValue>& dict_values() const { return dict_values_; }
-  std::vector<DebugAnnotation_NestedValue>* mutable_dict_values() { return &dict_values_; }
-  int dict_values_size() const;
-  void clear_dict_values();
-  DebugAnnotation_NestedValue* add_dict_values();
-
-  const std::vector<DebugAnnotation_NestedValue>& array_values() const { return array_values_; }
-  std::vector<DebugAnnotation_NestedValue>* mutable_array_values() { return &array_values_; }
-  int array_values_size() const;
-  void clear_array_values();
-  DebugAnnotation_NestedValue* add_array_values();
-
-  bool has_int_value() const { return _has_field_[5]; }
-  int64_t int_value() const { return int_value_; }
-  void set_int_value(int64_t value) { int_value_ = value; _has_field_.set(5); }
-
-  bool has_double_value() const { return _has_field_[6]; }
-  double double_value() const { return double_value_; }
-  void set_double_value(double value) { double_value_ = value; _has_field_.set(6); }
-
-  bool has_bool_value() const { return _has_field_[7]; }
-  bool bool_value() const { return bool_value_; }
-  void set_bool_value(bool value) { bool_value_ = value; _has_field_.set(7); }
-
-  bool has_string_value() const { return _has_field_[8]; }
-  const std::string& string_value() const { return string_value_; }
-  void set_string_value(const std::string& value) { string_value_ = value; _has_field_.set(8); }
-
- private:
-  DebugAnnotation_NestedValue_NestedType nested_type_{};
-  std::vector<std::string> dict_keys_;
-  std::vector<DebugAnnotation_NestedValue> dict_values_;
-  std::vector<DebugAnnotation_NestedValue> array_values_;
-  int64_t int_value_{};
-  double double_value_{};
-  bool bool_value_{};
-  std::string string_value_{};
-
-  // Allows to preserve unknown protobuf fields for compatibility
-  // with future versions of .proto files.
-  std::string unknown_fields_;
-
-  std::bitset<9> _has_field_{};
-};
-
-}  // namespace perfetto
-}  // namespace protos
-}  // namespace gen
-
-#endif  // PERFETTO_PROTOS_PROTOS_PERFETTO_TRACE_TRACK_EVENT_DEBUG_ANNOTATION_PROTO_CPP_H_
-// gen_amalgamated expanded: #include "perfetto/protozero/message.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/packed_repeated_fields.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/proto_decoder.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/scattered_heap_buffer.h"
-// DO NOT EDIT. Autogenerated by Perfetto cppgen_plugin
-#if defined(__GNUC__) || defined(__clang__)
-#pragma GCC diagnostic push
-#pragma GCC diagnostic ignored "-Wfloat-equal"
-#endif
-// gen_amalgamated expanded: #include "protos/perfetto/trace/track_event/debug_annotation.gen.h"
-
-namespace perfetto {
-namespace protos {
-namespace gen {
-
-DebugAnnotationName::DebugAnnotationName() = default;
-DebugAnnotationName::~DebugAnnotationName() = default;
-DebugAnnotationName::DebugAnnotationName(const DebugAnnotationName&) = default;
-DebugAnnotationName& DebugAnnotationName::operator=(const DebugAnnotationName&) = default;
-DebugAnnotationName::DebugAnnotationName(DebugAnnotationName&&) noexcept = default;
-DebugAnnotationName& DebugAnnotationName::operator=(DebugAnnotationName&&) = default;
-
-bool DebugAnnotationName::operator==(const DebugAnnotationName& other) const {
-  return unknown_fields_ == other.unknown_fields_
-   && iid_ == other.iid_
-   && name_ == other.name_;
-}
-
-bool DebugAnnotationName::ParseFromArray(const void* raw, size_t size) {
-  unknown_fields_.clear();
-  bool packed_error = false;
-
-  ::protozero::ProtoDecoder dec(raw, size);
-  for (auto field = dec.ReadField(); field.valid(); field = dec.ReadField()) {
-    if (field.id() < _has_field_.size()) {
-      _has_field_.set(field.id());
-    }
-    switch (field.id()) {
-      case 1 /* iid */:
-        field.get(&iid_);
-        break;
-      case 2 /* name */:
-        field.get(&name_);
-        break;
-      default:
-        field.SerializeAndAppendTo(&unknown_fields_);
-        break;
-    }
-  }
-  return !packed_error && !dec.bytes_left();
-}
-
-std::string DebugAnnotationName::SerializeAsString() const {
-  ::protozero::HeapBuffered<::protozero::Message> msg;
-  Serialize(msg.get());
-  return msg.SerializeAsString();
-}
-
-std::vector<uint8_t> DebugAnnotationName::SerializeAsArray() const {
-  ::protozero::HeapBuffered<::protozero::Message> msg;
-  Serialize(msg.get());
-  return msg.SerializeAsArray();
-}
-
-void DebugAnnotationName::Serialize(::protozero::Message* msg) const {
-  // Field 1: iid
-  if (_has_field_[1]) {
-    msg->AppendVarInt(1, iid_);
-  }
-
-  // Field 2: name
-  if (_has_field_[2]) {
-    msg->AppendString(2, name_);
-  }
-
-  msg->AppendRawProtoBytes(unknown_fields_.data(), unknown_fields_.size());
-}
-
-
-DebugAnnotation::DebugAnnotation() = default;
-DebugAnnotation::~DebugAnnotation() = default;
-DebugAnnotation::DebugAnnotation(const DebugAnnotation&) = default;
-DebugAnnotation& DebugAnnotation::operator=(const DebugAnnotation&) = default;
-DebugAnnotation::DebugAnnotation(DebugAnnotation&&) noexcept = default;
-DebugAnnotation& DebugAnnotation::operator=(DebugAnnotation&&) = default;
-
-bool DebugAnnotation::operator==(const DebugAnnotation& other) const {
-  return unknown_fields_ == other.unknown_fields_
-   && name_iid_ == other.name_iid_
-   && name_ == other.name_
-   && bool_value_ == other.bool_value_
-   && uint_value_ == other.uint_value_
-   && int_value_ == other.int_value_
-   && double_value_ == other.double_value_
-   && string_value_ == other.string_value_
-   && pointer_value_ == other.pointer_value_
-   && nested_value_ == other.nested_value_
-   && legacy_json_value_ == other.legacy_json_value_
-   && dict_entries_ == other.dict_entries_
-   && array_values_ == other.array_values_;
-}
-
-int DebugAnnotation::dict_entries_size() const { return static_cast<int>(dict_entries_.size()); }
-void DebugAnnotation::clear_dict_entries() { dict_entries_.clear(); }
-DebugAnnotation* DebugAnnotation::add_dict_entries() { dict_entries_.emplace_back(); return &dict_entries_.back(); }
-int DebugAnnotation::array_values_size() const { return static_cast<int>(array_values_.size()); }
-void DebugAnnotation::clear_array_values() { array_values_.clear(); }
-DebugAnnotation* DebugAnnotation::add_array_values() { array_values_.emplace_back(); return &array_values_.back(); }
-bool DebugAnnotation::ParseFromArray(const void* raw, size_t size) {
-  dict_entries_.clear();
-  array_values_.clear();
-  unknown_fields_.clear();
-  bool packed_error = false;
-
-  ::protozero::ProtoDecoder dec(raw, size);
-  for (auto field = dec.ReadField(); field.valid(); field = dec.ReadField()) {
-    if (field.id() < _has_field_.size()) {
-      _has_field_.set(field.id());
-    }
-    switch (field.id()) {
-      case 1 /* name_iid */:
-        field.get(&name_iid_);
-        break;
-      case 10 /* name */:
-        field.get(&name_);
-        break;
-      case 2 /* bool_value */:
-        field.get(&bool_value_);
-        break;
-      case 3 /* uint_value */:
-        field.get(&uint_value_);
-        break;
-      case 4 /* int_value */:
-        field.get(&int_value_);
-        break;
-      case 5 /* double_value */:
-        field.get(&double_value_);
-        break;
-      case 6 /* string_value */:
-        field.get(&string_value_);
-        break;
-      case 7 /* pointer_value */:
-        field.get(&pointer_value_);
-        break;
-      case 8 /* nested_value */:
-        (*nested_value_).ParseFromArray(field.data(), field.size());
-        break;
-      case 9 /* legacy_json_value */:
-        field.get(&legacy_json_value_);
-        break;
-      case 11 /* dict_entries */:
-        dict_entries_.emplace_back();
-        dict_entries_.back().ParseFromArray(field.data(), field.size());
-        break;
-      case 12 /* array_values */:
-        array_values_.emplace_back();
-        array_values_.back().ParseFromArray(field.data(), field.size());
-        break;
-      default:
-        field.SerializeAndAppendTo(&unknown_fields_);
-        break;
-    }
-  }
-  return !packed_error && !dec.bytes_left();
-}
-
-std::string DebugAnnotation::SerializeAsString() const {
-  ::protozero::HeapBuffered<::protozero::Message> msg;
-  Serialize(msg.get());
-  return msg.SerializeAsString();
-}
-
-std::vector<uint8_t> DebugAnnotation::SerializeAsArray() const {
-  ::protozero::HeapBuffered<::protozero::Message> msg;
-  Serialize(msg.get());
-  return msg.SerializeAsArray();
-}
-
-void DebugAnnotation::Serialize(::protozero::Message* msg) const {
-  // Field 1: name_iid
-  if (_has_field_[1]) {
-    msg->AppendVarInt(1, name_iid_);
-  }
-
-  // Field 10: name
-  if (_has_field_[10]) {
-    msg->AppendString(10, name_);
-  }
-
-  // Field 2: bool_value
-  if (_has_field_[2]) {
-    msg->AppendTinyVarInt(2, bool_value_);
-  }
-
-  // Field 3: uint_value
-  if (_has_field_[3]) {
-    msg->AppendVarInt(3, uint_value_);
-  }
-
-  // Field 4: int_value
-  if (_has_field_[4]) {
-    msg->AppendVarInt(4, int_value_);
-  }
-
-  // Field 5: double_value
-  if (_has_field_[5]) {
-    msg->AppendFixed(5, double_value_);
-  }
-
-  // Field 6: string_value
-  if (_has_field_[6]) {
-    msg->AppendString(6, string_value_);
-  }
-
-  // Field 7: pointer_value
-  if (_has_field_[7]) {
-    msg->AppendVarInt(7, pointer_value_);
-  }
-
-  // Field 8: nested_value
-  if (_has_field_[8]) {
-    (*nested_value_).Serialize(msg->BeginNestedMessage<::protozero::Message>(8));
-  }
-
-  // Field 9: legacy_json_value
-  if (_has_field_[9]) {
-    msg->AppendString(9, legacy_json_value_);
-  }
-
-  // Field 11: dict_entries
-  for (auto& it : dict_entries_) {
-    it.Serialize(msg->BeginNestedMessage<::protozero::Message>(11));
-  }
-
-  // Field 12: array_values
-  for (auto& it : array_values_) {
-    it.Serialize(msg->BeginNestedMessage<::protozero::Message>(12));
-  }
-
-  msg->AppendRawProtoBytes(unknown_fields_.data(), unknown_fields_.size());
-}
-
-
-DebugAnnotation_NestedValue::DebugAnnotation_NestedValue() = default;
-DebugAnnotation_NestedValue::~DebugAnnotation_NestedValue() = default;
-DebugAnnotation_NestedValue::DebugAnnotation_NestedValue(const DebugAnnotation_NestedValue&) = default;
-DebugAnnotation_NestedValue& DebugAnnotation_NestedValue::operator=(const DebugAnnotation_NestedValue&) = default;
-DebugAnnotation_NestedValue::DebugAnnotation_NestedValue(DebugAnnotation_NestedValue&&) noexcept = default;
-DebugAnnotation_NestedValue& DebugAnnotation_NestedValue::operator=(DebugAnnotation_NestedValue&&) = default;
-
-bool DebugAnnotation_NestedValue::operator==(const DebugAnnotation_NestedValue& other) const {
-  return unknown_fields_ == other.unknown_fields_
-   && nested_type_ == other.nested_type_
-   && dict_keys_ == other.dict_keys_
-   && dict_values_ == other.dict_values_
-   && array_values_ == other.array_values_
-   && int_value_ == other.int_value_
-   && double_value_ == other.double_value_
-   && bool_value_ == other.bool_value_
-   && string_value_ == other.string_value_;
-}
-
-int DebugAnnotation_NestedValue::dict_values_size() const { return static_cast<int>(dict_values_.size()); }
-void DebugAnnotation_NestedValue::clear_dict_values() { dict_values_.clear(); }
-DebugAnnotation_NestedValue* DebugAnnotation_NestedValue::add_dict_values() { dict_values_.emplace_back(); return &dict_values_.back(); }
-int DebugAnnotation_NestedValue::array_values_size() const { return static_cast<int>(array_values_.size()); }
-void DebugAnnotation_NestedValue::clear_array_values() { array_values_.clear(); }
-DebugAnnotation_NestedValue* DebugAnnotation_NestedValue::add_array_values() { array_values_.emplace_back(); return &array_values_.back(); }
-bool DebugAnnotation_NestedValue::ParseFromArray(const void* raw, size_t size) {
-  dict_keys_.clear();
-  dict_values_.clear();
-  array_values_.clear();
-  unknown_fields_.clear();
-  bool packed_error = false;
-
-  ::protozero::ProtoDecoder dec(raw, size);
-  for (auto field = dec.ReadField(); field.valid(); field = dec.ReadField()) {
-    if (field.id() < _has_field_.size()) {
-      _has_field_.set(field.id());
-    }
-    switch (field.id()) {
-      case 1 /* nested_type */:
-        field.get(&nested_type_);
-        break;
-      case 2 /* dict_keys */:
-        dict_keys_.emplace_back();
-        field.get(&dict_keys_.back());
-        break;
-      case 3 /* dict_values */:
-        dict_values_.emplace_back();
-        dict_values_.back().ParseFromArray(field.data(), field.size());
-        break;
-      case 4 /* array_values */:
-        array_values_.emplace_back();
-        array_values_.back().ParseFromArray(field.data(), field.size());
-        break;
-      case 5 /* int_value */:
-        field.get(&int_value_);
-        break;
-      case 6 /* double_value */:
-        field.get(&double_value_);
-        break;
-      case 7 /* bool_value */:
-        field.get(&bool_value_);
-        break;
-      case 8 /* string_value */:
-        field.get(&string_value_);
-        break;
-      default:
-        field.SerializeAndAppendTo(&unknown_fields_);
-        break;
-    }
-  }
-  return !packed_error && !dec.bytes_left();
-}
-
-std::string DebugAnnotation_NestedValue::SerializeAsString() const {
-  ::protozero::HeapBuffered<::protozero::Message> msg;
-  Serialize(msg.get());
-  return msg.SerializeAsString();
-}
-
-std::vector<uint8_t> DebugAnnotation_NestedValue::SerializeAsArray() const {
-  ::protozero::HeapBuffered<::protozero::Message> msg;
-  Serialize(msg.get());
-  return msg.SerializeAsArray();
-}
-
-void DebugAnnotation_NestedValue::Serialize(::protozero::Message* msg) const {
-  // Field 1: nested_type
-  if (_has_field_[1]) {
-    msg->AppendVarInt(1, nested_type_);
-  }
-
-  // Field 2: dict_keys
-  for (auto& it : dict_keys_) {
-    msg->AppendString(2, it);
-  }
-
-  // Field 3: dict_values
-  for (auto& it : dict_values_) {
-    it.Serialize(msg->BeginNestedMessage<::protozero::Message>(3));
-  }
-
-  // Field 4: array_values
-  for (auto& it : array_values_) {
-    it.Serialize(msg->BeginNestedMessage<::protozero::Message>(4));
-  }
-
-  // Field 5: int_value
-  if (_has_field_[5]) {
-    msg->AppendVarInt(5, int_value_);
-  }
-
-  // Field 6: double_value
-  if (_has_field_[6]) {
-    msg->AppendFixed(6, double_value_);
-  }
-
-  // Field 7: bool_value
-  if (_has_field_[7]) {
-    msg->AppendTinyVarInt(7, bool_value_);
-  }
-
-  // Field 8: string_value
-  if (_has_field_[8]) {
-    msg->AppendString(8, string_value_);
-  }
-
-  msg->AppendRawProtoBytes(unknown_fields_.data(), unknown_fields_.size());
-}
-
-}  // namespace perfetto
-}  // namespace protos
-}  // namespace gen
-#if defined(__GNUC__) || defined(__clang__)
-#pragma GCC diagnostic pop
-#endif
-// gen_amalgamated begin source: gen/protos/perfetto/trace/track_event/log_message.gen.cc
-// gen_amalgamated begin header: gen/protos/perfetto/trace/track_event/log_message.gen.h
-// DO NOT EDIT. Autogenerated by Perfetto cppgen_plugin
-#ifndef PERFETTO_PROTOS_PROTOS_PERFETTO_TRACE_TRACK_EVENT_LOG_MESSAGE_PROTO_CPP_H_
-#define PERFETTO_PROTOS_PROTOS_PERFETTO_TRACE_TRACK_EVENT_LOG_MESSAGE_PROTO_CPP_H_
-
-#include <stdint.h>
-#include <bitset>
-#include <vector>
-#include <string>
-#include <type_traits>
-
-// gen_amalgamated expanded: #include "perfetto/protozero/cpp_message_obj.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/copyable_ptr.h"
-// gen_amalgamated expanded: #include "perfetto/base/export.h"
-
-namespace perfetto {
-namespace protos {
-namespace gen {
-class LogMessageBody;
-class LogMessage;
-}  // namespace perfetto
-}  // namespace protos
-}  // namespace gen
-
-namespace protozero {
-class Message;
-}  // namespace protozero
-
-namespace perfetto {
-namespace protos {
-namespace gen {
-
-class PERFETTO_EXPORT LogMessageBody : public ::protozero::CppMessageObj {
- public:
-  enum FieldNumbers {
-    kIidFieldNumber = 1,
-    kBodyFieldNumber = 2,
-  };
-
-  LogMessageBody();
-  ~LogMessageBody() override;
-  LogMessageBody(LogMessageBody&&) noexcept;
-  LogMessageBody& operator=(LogMessageBody&&);
-  LogMessageBody(const LogMessageBody&);
-  LogMessageBody& operator=(const LogMessageBody&);
-  bool operator==(const LogMessageBody&) const;
-  bool operator!=(const LogMessageBody& other) const { return !(*this == other); }
-
-  bool ParseFromArray(const void*, size_t) override;
-  std::string SerializeAsString() const override;
-  std::vector<uint8_t> SerializeAsArray() const override;
-  void Serialize(::protozero::Message*) const;
-
-  bool has_iid() const { return _has_field_[1]; }
-  uint64_t iid() const { return iid_; }
-  void set_iid(uint64_t value) { iid_ = value; _has_field_.set(1); }
-
-  bool has_body() const { return _has_field_[2]; }
-  const std::string& body() const { return body_; }
-  void set_body(const std::string& value) { body_ = value; _has_field_.set(2); }
-
- private:
-  uint64_t iid_{};
-  std::string body_{};
-
-  // Allows to preserve unknown protobuf fields for compatibility
-  // with future versions of .proto files.
-  std::string unknown_fields_;
-
-  std::bitset<3> _has_field_{};
-};
-
-
-class PERFETTO_EXPORT LogMessage : public ::protozero::CppMessageObj {
- public:
-  enum FieldNumbers {
-    kSourceLocationIidFieldNumber = 1,
-    kBodyIidFieldNumber = 2,
-  };
-
-  LogMessage();
-  ~LogMessage() override;
-  LogMessage(LogMessage&&) noexcept;
-  LogMessage& operator=(LogMessage&&);
-  LogMessage(const LogMessage&);
-  LogMessage& operator=(const LogMessage&);
-  bool operator==(const LogMessage&) const;
-  bool operator!=(const LogMessage& other) const { return !(*this == other); }
-
-  bool ParseFromArray(const void*, size_t) override;
-  std::string SerializeAsString() const override;
-  std::vector<uint8_t> SerializeAsArray() const override;
-  void Serialize(::protozero::Message*) const;
-
-  bool has_source_location_iid() const { return _has_field_[1]; }
-  uint64_t source_location_iid() const { return source_location_iid_; }
-  void set_source_location_iid(uint64_t value) { source_location_iid_ = value; _has_field_.set(1); }
-
-  bool has_body_iid() const { return _has_field_[2]; }
-  uint64_t body_iid() const { return body_iid_; }
-  void set_body_iid(uint64_t value) { body_iid_ = value; _has_field_.set(2); }
-
- private:
-  uint64_t source_location_iid_{};
-  uint64_t body_iid_{};
-
-  // Allows to preserve unknown protobuf fields for compatibility
-  // with future versions of .proto files.
-  std::string unknown_fields_;
-
-  std::bitset<3> _has_field_{};
-};
-
-}  // namespace perfetto
-}  // namespace protos
-}  // namespace gen
-
-#endif  // PERFETTO_PROTOS_PROTOS_PERFETTO_TRACE_TRACK_EVENT_LOG_MESSAGE_PROTO_CPP_H_
-// gen_amalgamated expanded: #include "perfetto/protozero/message.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/packed_repeated_fields.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/proto_decoder.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/scattered_heap_buffer.h"
-// DO NOT EDIT. Autogenerated by Perfetto cppgen_plugin
-#if defined(__GNUC__) || defined(__clang__)
-#pragma GCC diagnostic push
-#pragma GCC diagnostic ignored "-Wfloat-equal"
-#endif
-// gen_amalgamated expanded: #include "protos/perfetto/trace/track_event/log_message.gen.h"
-
-namespace perfetto {
-namespace protos {
-namespace gen {
-
-LogMessageBody::LogMessageBody() = default;
-LogMessageBody::~LogMessageBody() = default;
-LogMessageBody::LogMessageBody(const LogMessageBody&) = default;
-LogMessageBody& LogMessageBody::operator=(const LogMessageBody&) = default;
-LogMessageBody::LogMessageBody(LogMessageBody&&) noexcept = default;
-LogMessageBody& LogMessageBody::operator=(LogMessageBody&&) = default;
-
-bool LogMessageBody::operator==(const LogMessageBody& other) const {
-  return unknown_fields_ == other.unknown_fields_
-   && iid_ == other.iid_
-   && body_ == other.body_;
-}
-
-bool LogMessageBody::ParseFromArray(const void* raw, size_t size) {
-  unknown_fields_.clear();
-  bool packed_error = false;
-
-  ::protozero::ProtoDecoder dec(raw, size);
-  for (auto field = dec.ReadField(); field.valid(); field = dec.ReadField()) {
-    if (field.id() < _has_field_.size()) {
-      _has_field_.set(field.id());
-    }
-    switch (field.id()) {
-      case 1 /* iid */:
-        field.get(&iid_);
-        break;
-      case 2 /* body */:
-        field.get(&body_);
-        break;
-      default:
-        field.SerializeAndAppendTo(&unknown_fields_);
-        break;
-    }
-  }
-  return !packed_error && !dec.bytes_left();
-}
-
-std::string LogMessageBody::SerializeAsString() const {
-  ::protozero::HeapBuffered<::protozero::Message> msg;
-  Serialize(msg.get());
-  return msg.SerializeAsString();
-}
-
-std::vector<uint8_t> LogMessageBody::SerializeAsArray() const {
-  ::protozero::HeapBuffered<::protozero::Message> msg;
-  Serialize(msg.get());
-  return msg.SerializeAsArray();
-}
-
-void LogMessageBody::Serialize(::protozero::Message* msg) const {
-  // Field 1: iid
-  if (_has_field_[1]) {
-    msg->AppendVarInt(1, iid_);
-  }
-
-  // Field 2: body
-  if (_has_field_[2]) {
-    msg->AppendString(2, body_);
-  }
-
-  msg->AppendRawProtoBytes(unknown_fields_.data(), unknown_fields_.size());
-}
-
-
-LogMessage::LogMessage() = default;
-LogMessage::~LogMessage() = default;
-LogMessage::LogMessage(const LogMessage&) = default;
-LogMessage& LogMessage::operator=(const LogMessage&) = default;
-LogMessage::LogMessage(LogMessage&&) noexcept = default;
-LogMessage& LogMessage::operator=(LogMessage&&) = default;
-
-bool LogMessage::operator==(const LogMessage& other) const {
-  return unknown_fields_ == other.unknown_fields_
-   && source_location_iid_ == other.source_location_iid_
-   && body_iid_ == other.body_iid_;
-}
-
-bool LogMessage::ParseFromArray(const void* raw, size_t size) {
-  unknown_fields_.clear();
-  bool packed_error = false;
-
-  ::protozero::ProtoDecoder dec(raw, size);
-  for (auto field = dec.ReadField(); field.valid(); field = dec.ReadField()) {
-    if (field.id() < _has_field_.size()) {
-      _has_field_.set(field.id());
-    }
-    switch (field.id()) {
-      case 1 /* source_location_iid */:
-        field.get(&source_location_iid_);
-        break;
-      case 2 /* body_iid */:
-        field.get(&body_iid_);
-        break;
-      default:
-        field.SerializeAndAppendTo(&unknown_fields_);
-        break;
-    }
-  }
-  return !packed_error && !dec.bytes_left();
-}
-
-std::string LogMessage::SerializeAsString() const {
-  ::protozero::HeapBuffered<::protozero::Message> msg;
-  Serialize(msg.get());
-  return msg.SerializeAsString();
-}
-
-std::vector<uint8_t> LogMessage::SerializeAsArray() const {
-  ::protozero::HeapBuffered<::protozero::Message> msg;
-  Serialize(msg.get());
-  return msg.SerializeAsArray();
-}
-
-void LogMessage::Serialize(::protozero::Message* msg) const {
-  // Field 1: source_location_iid
-  if (_has_field_[1]) {
-    msg->AppendVarInt(1, source_location_iid_);
-  }
-
-  // Field 2: body_iid
-  if (_has_field_[2]) {
-    msg->AppendVarInt(2, body_iid_);
-  }
-
-  msg->AppendRawProtoBytes(unknown_fields_.data(), unknown_fields_.size());
-}
-
-}  // namespace perfetto
-}  // namespace protos
-}  // namespace gen
-#if defined(__GNUC__) || defined(__clang__)
-#pragma GCC diagnostic pop
-#endif
-// gen_amalgamated begin source: gen/protos/perfetto/trace/track_event/process_descriptor.gen.cc
-// gen_amalgamated begin header: gen/protos/perfetto/trace/track_event/process_descriptor.gen.h
-// DO NOT EDIT. Autogenerated by Perfetto cppgen_plugin
-#ifndef PERFETTO_PROTOS_PROTOS_PERFETTO_TRACE_TRACK_EVENT_PROCESS_DESCRIPTOR_PROTO_CPP_H_
-#define PERFETTO_PROTOS_PROTOS_PERFETTO_TRACE_TRACK_EVENT_PROCESS_DESCRIPTOR_PROTO_CPP_H_
-
-#include <stdint.h>
-#include <bitset>
-#include <vector>
-#include <string>
-#include <type_traits>
-
-// gen_amalgamated expanded: #include "perfetto/protozero/cpp_message_obj.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/copyable_ptr.h"
-// gen_amalgamated expanded: #include "perfetto/base/export.h"
-
-namespace perfetto {
-namespace protos {
-namespace gen {
-class ProcessDescriptor;
-enum ProcessDescriptor_ChromeProcessType : int;
-}  // namespace perfetto
-}  // namespace protos
-}  // namespace gen
-
-namespace protozero {
-class Message;
-}  // namespace protozero
-
-namespace perfetto {
-namespace protos {
-namespace gen {
-enum ProcessDescriptor_ChromeProcessType : int {
-  ProcessDescriptor_ChromeProcessType_PROCESS_UNSPECIFIED = 0,
-  ProcessDescriptor_ChromeProcessType_PROCESS_BROWSER = 1,
-  ProcessDescriptor_ChromeProcessType_PROCESS_RENDERER = 2,
-  ProcessDescriptor_ChromeProcessType_PROCESS_UTILITY = 3,
-  ProcessDescriptor_ChromeProcessType_PROCESS_ZYGOTE = 4,
-  ProcessDescriptor_ChromeProcessType_PROCESS_SANDBOX_HELPER = 5,
-  ProcessDescriptor_ChromeProcessType_PROCESS_GPU = 6,
-  ProcessDescriptor_ChromeProcessType_PROCESS_PPAPI_PLUGIN = 7,
-  ProcessDescriptor_ChromeProcessType_PROCESS_PPAPI_BROKER = 8,
-};
-
-class PERFETTO_EXPORT ProcessDescriptor : public ::protozero::CppMessageObj {
- public:
-  using ChromeProcessType = ProcessDescriptor_ChromeProcessType;
-  static constexpr auto PROCESS_UNSPECIFIED = ProcessDescriptor_ChromeProcessType_PROCESS_UNSPECIFIED;
-  static constexpr auto PROCESS_BROWSER = ProcessDescriptor_ChromeProcessType_PROCESS_BROWSER;
-  static constexpr auto PROCESS_RENDERER = ProcessDescriptor_ChromeProcessType_PROCESS_RENDERER;
-  static constexpr auto PROCESS_UTILITY = ProcessDescriptor_ChromeProcessType_PROCESS_UTILITY;
-  static constexpr auto PROCESS_ZYGOTE = ProcessDescriptor_ChromeProcessType_PROCESS_ZYGOTE;
-  static constexpr auto PROCESS_SANDBOX_HELPER = ProcessDescriptor_ChromeProcessType_PROCESS_SANDBOX_HELPER;
-  static constexpr auto PROCESS_GPU = ProcessDescriptor_ChromeProcessType_PROCESS_GPU;
-  static constexpr auto PROCESS_PPAPI_PLUGIN = ProcessDescriptor_ChromeProcessType_PROCESS_PPAPI_PLUGIN;
-  static constexpr auto PROCESS_PPAPI_BROKER = ProcessDescriptor_ChromeProcessType_PROCESS_PPAPI_BROKER;
-  static constexpr auto ChromeProcessType_MIN = ProcessDescriptor_ChromeProcessType_PROCESS_UNSPECIFIED;
-  static constexpr auto ChromeProcessType_MAX = ProcessDescriptor_ChromeProcessType_PROCESS_PPAPI_BROKER;
-  enum FieldNumbers {
-    kPidFieldNumber = 1,
-    kCmdlineFieldNumber = 2,
-    kProcessNameFieldNumber = 6,
-    kProcessPriorityFieldNumber = 5,
-    kStartTimestampNsFieldNumber = 7,
-    kChromeProcessTypeFieldNumber = 4,
-    kLegacySortIndexFieldNumber = 3,
-  };
-
-  ProcessDescriptor();
-  ~ProcessDescriptor() override;
-  ProcessDescriptor(ProcessDescriptor&&) noexcept;
-  ProcessDescriptor& operator=(ProcessDescriptor&&);
-  ProcessDescriptor(const ProcessDescriptor&);
-  ProcessDescriptor& operator=(const ProcessDescriptor&);
-  bool operator==(const ProcessDescriptor&) const;
-  bool operator!=(const ProcessDescriptor& other) const { return !(*this == other); }
-
-  bool ParseFromArray(const void*, size_t) override;
-  std::string SerializeAsString() const override;
-  std::vector<uint8_t> SerializeAsArray() const override;
-  void Serialize(::protozero::Message*) const;
-
-  bool has_pid() const { return _has_field_[1]; }
-  int32_t pid() const { return pid_; }
-  void set_pid(int32_t value) { pid_ = value; _has_field_.set(1); }
-
-  const std::vector<std::string>& cmdline() const { return cmdline_; }
-  std::vector<std::string>* mutable_cmdline() { return &cmdline_; }
-  int cmdline_size() const { return static_cast<int>(cmdline_.size()); }
-  void clear_cmdline() { cmdline_.clear(); }
-  void add_cmdline(std::string value) { cmdline_.emplace_back(value); }
-  std::string* add_cmdline() { cmdline_.emplace_back(); return &cmdline_.back(); }
-
-  bool has_process_name() const { return _has_field_[6]; }
-  const std::string& process_name() const { return process_name_; }
-  void set_process_name(const std::string& value) { process_name_ = value; _has_field_.set(6); }
-
-  bool has_process_priority() const { return _has_field_[5]; }
-  int32_t process_priority() const { return process_priority_; }
-  void set_process_priority(int32_t value) { process_priority_ = value; _has_field_.set(5); }
-
-  bool has_start_timestamp_ns() const { return _has_field_[7]; }
-  int64_t start_timestamp_ns() const { return start_timestamp_ns_; }
-  void set_start_timestamp_ns(int64_t value) { start_timestamp_ns_ = value; _has_field_.set(7); }
-
-  bool has_chrome_process_type() const { return _has_field_[4]; }
-  ProcessDescriptor_ChromeProcessType chrome_process_type() const { return chrome_process_type_; }
-  void set_chrome_process_type(ProcessDescriptor_ChromeProcessType value) { chrome_process_type_ = value; _has_field_.set(4); }
-
-  bool has_legacy_sort_index() const { return _has_field_[3]; }
-  int32_t legacy_sort_index() const { return legacy_sort_index_; }
-  void set_legacy_sort_index(int32_t value) { legacy_sort_index_ = value; _has_field_.set(3); }
-
- private:
-  int32_t pid_{};
-  std::vector<std::string> cmdline_;
-  std::string process_name_{};
-  int32_t process_priority_{};
-  int64_t start_timestamp_ns_{};
-  ProcessDescriptor_ChromeProcessType chrome_process_type_{};
-  int32_t legacy_sort_index_{};
-
-  // Allows to preserve unknown protobuf fields for compatibility
-  // with future versions of .proto files.
-  std::string unknown_fields_;
-
-  std::bitset<8> _has_field_{};
-};
-
-}  // namespace perfetto
-}  // namespace protos
-}  // namespace gen
-
-#endif  // PERFETTO_PROTOS_PROTOS_PERFETTO_TRACE_TRACK_EVENT_PROCESS_DESCRIPTOR_PROTO_CPP_H_
-// gen_amalgamated expanded: #include "perfetto/protozero/message.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/packed_repeated_fields.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/proto_decoder.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/scattered_heap_buffer.h"
-// DO NOT EDIT. Autogenerated by Perfetto cppgen_plugin
-#if defined(__GNUC__) || defined(__clang__)
-#pragma GCC diagnostic push
-#pragma GCC diagnostic ignored "-Wfloat-equal"
-#endif
-// gen_amalgamated expanded: #include "protos/perfetto/trace/track_event/process_descriptor.gen.h"
-
-namespace perfetto {
-namespace protos {
-namespace gen {
-
-ProcessDescriptor::ProcessDescriptor() = default;
-ProcessDescriptor::~ProcessDescriptor() = default;
-ProcessDescriptor::ProcessDescriptor(const ProcessDescriptor&) = default;
-ProcessDescriptor& ProcessDescriptor::operator=(const ProcessDescriptor&) = default;
-ProcessDescriptor::ProcessDescriptor(ProcessDescriptor&&) noexcept = default;
-ProcessDescriptor& ProcessDescriptor::operator=(ProcessDescriptor&&) = default;
-
-bool ProcessDescriptor::operator==(const ProcessDescriptor& other) const {
-  return unknown_fields_ == other.unknown_fields_
-   && pid_ == other.pid_
-   && cmdline_ == other.cmdline_
-   && process_name_ == other.process_name_
-   && process_priority_ == other.process_priority_
-   && start_timestamp_ns_ == other.start_timestamp_ns_
-   && chrome_process_type_ == other.chrome_process_type_
-   && legacy_sort_index_ == other.legacy_sort_index_;
-}
-
-bool ProcessDescriptor::ParseFromArray(const void* raw, size_t size) {
-  cmdline_.clear();
-  unknown_fields_.clear();
-  bool packed_error = false;
-
-  ::protozero::ProtoDecoder dec(raw, size);
-  for (auto field = dec.ReadField(); field.valid(); field = dec.ReadField()) {
-    if (field.id() < _has_field_.size()) {
-      _has_field_.set(field.id());
-    }
-    switch (field.id()) {
-      case 1 /* pid */:
-        field.get(&pid_);
-        break;
-      case 2 /* cmdline */:
-        cmdline_.emplace_back();
-        field.get(&cmdline_.back());
-        break;
-      case 6 /* process_name */:
-        field.get(&process_name_);
-        break;
-      case 5 /* process_priority */:
-        field.get(&process_priority_);
-        break;
-      case 7 /* start_timestamp_ns */:
-        field.get(&start_timestamp_ns_);
-        break;
-      case 4 /* chrome_process_type */:
-        field.get(&chrome_process_type_);
-        break;
-      case 3 /* legacy_sort_index */:
-        field.get(&legacy_sort_index_);
-        break;
-      default:
-        field.SerializeAndAppendTo(&unknown_fields_);
-        break;
-    }
-  }
-  return !packed_error && !dec.bytes_left();
-}
-
-std::string ProcessDescriptor::SerializeAsString() const {
-  ::protozero::HeapBuffered<::protozero::Message> msg;
-  Serialize(msg.get());
-  return msg.SerializeAsString();
-}
-
-std::vector<uint8_t> ProcessDescriptor::SerializeAsArray() const {
-  ::protozero::HeapBuffered<::protozero::Message> msg;
-  Serialize(msg.get());
-  return msg.SerializeAsArray();
-}
-
-void ProcessDescriptor::Serialize(::protozero::Message* msg) const {
-  // Field 1: pid
-  if (_has_field_[1]) {
-    msg->AppendVarInt(1, pid_);
-  }
-
-  // Field 2: cmdline
-  for (auto& it : cmdline_) {
-    msg->AppendString(2, it);
-  }
-
-  // Field 6: process_name
-  if (_has_field_[6]) {
-    msg->AppendString(6, process_name_);
-  }
-
-  // Field 5: process_priority
-  if (_has_field_[5]) {
-    msg->AppendVarInt(5, process_priority_);
-  }
-
-  // Field 7: start_timestamp_ns
-  if (_has_field_[7]) {
-    msg->AppendVarInt(7, start_timestamp_ns_);
-  }
-
-  // Field 4: chrome_process_type
-  if (_has_field_[4]) {
-    msg->AppendVarInt(4, chrome_process_type_);
-  }
-
-  // Field 3: legacy_sort_index
-  if (_has_field_[3]) {
-    msg->AppendVarInt(3, legacy_sort_index_);
-  }
-
-  msg->AppendRawProtoBytes(unknown_fields_.data(), unknown_fields_.size());
-}
-
-}  // namespace perfetto
-}  // namespace protos
-}  // namespace gen
-#if defined(__GNUC__) || defined(__clang__)
-#pragma GCC diagnostic pop
-#endif
-// gen_amalgamated begin source: gen/protos/perfetto/trace/track_event/source_location.gen.cc
-// gen_amalgamated expanded: #include "perfetto/protozero/message.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/packed_repeated_fields.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/proto_decoder.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/scattered_heap_buffer.h"
-// DO NOT EDIT. Autogenerated by Perfetto cppgen_plugin
-#if defined(__GNUC__) || defined(__clang__)
-#pragma GCC diagnostic push
-#pragma GCC diagnostic ignored "-Wfloat-equal"
-#endif
-// gen_amalgamated expanded: #include "protos/perfetto/trace/track_event/source_location.gen.h"
-
-namespace perfetto {
-namespace protos {
-namespace gen {
-
-SourceLocation::SourceLocation() = default;
-SourceLocation::~SourceLocation() = default;
-SourceLocation::SourceLocation(const SourceLocation&) = default;
-SourceLocation& SourceLocation::operator=(const SourceLocation&) = default;
-SourceLocation::SourceLocation(SourceLocation&&) noexcept = default;
-SourceLocation& SourceLocation::operator=(SourceLocation&&) = default;
-
-bool SourceLocation::operator==(const SourceLocation& other) const {
-  return unknown_fields_ == other.unknown_fields_
-   && iid_ == other.iid_
-   && file_name_ == other.file_name_
-   && function_name_ == other.function_name_
-   && line_number_ == other.line_number_;
-}
-
-bool SourceLocation::ParseFromArray(const void* raw, size_t size) {
-  unknown_fields_.clear();
-  bool packed_error = false;
-
-  ::protozero::ProtoDecoder dec(raw, size);
-  for (auto field = dec.ReadField(); field.valid(); field = dec.ReadField()) {
-    if (field.id() < _has_field_.size()) {
-      _has_field_.set(field.id());
-    }
-    switch (field.id()) {
-      case 1 /* iid */:
-        field.get(&iid_);
-        break;
-      case 2 /* file_name */:
-        field.get(&file_name_);
-        break;
-      case 3 /* function_name */:
-        field.get(&function_name_);
-        break;
-      case 4 /* line_number */:
-        field.get(&line_number_);
-        break;
-      default:
-        field.SerializeAndAppendTo(&unknown_fields_);
-        break;
-    }
-  }
-  return !packed_error && !dec.bytes_left();
-}
-
-std::string SourceLocation::SerializeAsString() const {
-  ::protozero::HeapBuffered<::protozero::Message> msg;
-  Serialize(msg.get());
-  return msg.SerializeAsString();
-}
-
-std::vector<uint8_t> SourceLocation::SerializeAsArray() const {
-  ::protozero::HeapBuffered<::protozero::Message> msg;
-  Serialize(msg.get());
-  return msg.SerializeAsArray();
-}
-
-void SourceLocation::Serialize(::protozero::Message* msg) const {
-  // Field 1: iid
-  if (_has_field_[1]) {
-    msg->AppendVarInt(1, iid_);
-  }
-
-  // Field 2: file_name
-  if (_has_field_[2]) {
-    msg->AppendString(2, file_name_);
-  }
-
-  // Field 3: function_name
-  if (_has_field_[3]) {
-    msg->AppendString(3, function_name_);
-  }
-
-  // Field 4: line_number
-  if (_has_field_[4]) {
-    msg->AppendVarInt(4, line_number_);
-  }
-
-  msg->AppendRawProtoBytes(unknown_fields_.data(), unknown_fields_.size());
-}
-
-}  // namespace perfetto
-}  // namespace protos
-}  // namespace gen
-#if defined(__GNUC__) || defined(__clang__)
-#pragma GCC diagnostic pop
-#endif
-// gen_amalgamated begin source: gen/protos/perfetto/trace/track_event/task_execution.gen.cc
-// gen_amalgamated begin header: gen/protos/perfetto/trace/track_event/task_execution.gen.h
-// DO NOT EDIT. Autogenerated by Perfetto cppgen_plugin
-#ifndef PERFETTO_PROTOS_PROTOS_PERFETTO_TRACE_TRACK_EVENT_TASK_EXECUTION_PROTO_CPP_H_
-#define PERFETTO_PROTOS_PROTOS_PERFETTO_TRACE_TRACK_EVENT_TASK_EXECUTION_PROTO_CPP_H_
-
-#include <stdint.h>
-#include <bitset>
-#include <vector>
-#include <string>
-#include <type_traits>
-
-// gen_amalgamated expanded: #include "perfetto/protozero/cpp_message_obj.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/copyable_ptr.h"
-// gen_amalgamated expanded: #include "perfetto/base/export.h"
-
-namespace perfetto {
-namespace protos {
-namespace gen {
-class TaskExecution;
-}  // namespace perfetto
-}  // namespace protos
-}  // namespace gen
-
-namespace protozero {
-class Message;
-}  // namespace protozero
-
-namespace perfetto {
-namespace protos {
-namespace gen {
-
-class PERFETTO_EXPORT TaskExecution : public ::protozero::CppMessageObj {
- public:
-  enum FieldNumbers {
-    kPostedFromIidFieldNumber = 1,
-  };
-
-  TaskExecution();
-  ~TaskExecution() override;
-  TaskExecution(TaskExecution&&) noexcept;
-  TaskExecution& operator=(TaskExecution&&);
-  TaskExecution(const TaskExecution&);
-  TaskExecution& operator=(const TaskExecution&);
-  bool operator==(const TaskExecution&) const;
-  bool operator!=(const TaskExecution& other) const { return !(*this == other); }
-
-  bool ParseFromArray(const void*, size_t) override;
-  std::string SerializeAsString() const override;
-  std::vector<uint8_t> SerializeAsArray() const override;
-  void Serialize(::protozero::Message*) const;
-
-  bool has_posted_from_iid() const { return _has_field_[1]; }
-  uint64_t posted_from_iid() const { return posted_from_iid_; }
-  void set_posted_from_iid(uint64_t value) { posted_from_iid_ = value; _has_field_.set(1); }
-
- private:
-  uint64_t posted_from_iid_{};
-
-  // Allows to preserve unknown protobuf fields for compatibility
-  // with future versions of .proto files.
-  std::string unknown_fields_;
-
-  std::bitset<2> _has_field_{};
-};
-
-}  // namespace perfetto
-}  // namespace protos
-}  // namespace gen
-
-#endif  // PERFETTO_PROTOS_PROTOS_PERFETTO_TRACE_TRACK_EVENT_TASK_EXECUTION_PROTO_CPP_H_
-// gen_amalgamated expanded: #include "perfetto/protozero/message.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/packed_repeated_fields.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/proto_decoder.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/scattered_heap_buffer.h"
-// DO NOT EDIT. Autogenerated by Perfetto cppgen_plugin
-#if defined(__GNUC__) || defined(__clang__)
-#pragma GCC diagnostic push
-#pragma GCC diagnostic ignored "-Wfloat-equal"
-#endif
-// gen_amalgamated expanded: #include "protos/perfetto/trace/track_event/task_execution.gen.h"
-
-namespace perfetto {
-namespace protos {
-namespace gen {
-
-TaskExecution::TaskExecution() = default;
-TaskExecution::~TaskExecution() = default;
-TaskExecution::TaskExecution(const TaskExecution&) = default;
-TaskExecution& TaskExecution::operator=(const TaskExecution&) = default;
-TaskExecution::TaskExecution(TaskExecution&&) noexcept = default;
-TaskExecution& TaskExecution::operator=(TaskExecution&&) = default;
-
-bool TaskExecution::operator==(const TaskExecution& other) const {
-  return unknown_fields_ == other.unknown_fields_
-   && posted_from_iid_ == other.posted_from_iid_;
-}
-
-bool TaskExecution::ParseFromArray(const void* raw, size_t size) {
-  unknown_fields_.clear();
-  bool packed_error = false;
-
-  ::protozero::ProtoDecoder dec(raw, size);
-  for (auto field = dec.ReadField(); field.valid(); field = dec.ReadField()) {
-    if (field.id() < _has_field_.size()) {
-      _has_field_.set(field.id());
-    }
-    switch (field.id()) {
-      case 1 /* posted_from_iid */:
-        field.get(&posted_from_iid_);
-        break;
-      default:
-        field.SerializeAndAppendTo(&unknown_fields_);
-        break;
-    }
-  }
-  return !packed_error && !dec.bytes_left();
-}
-
-std::string TaskExecution::SerializeAsString() const {
-  ::protozero::HeapBuffered<::protozero::Message> msg;
-  Serialize(msg.get());
-  return msg.SerializeAsString();
-}
-
-std::vector<uint8_t> TaskExecution::SerializeAsArray() const {
-  ::protozero::HeapBuffered<::protozero::Message> msg;
-  Serialize(msg.get());
-  return msg.SerializeAsArray();
-}
-
-void TaskExecution::Serialize(::protozero::Message* msg) const {
-  // Field 1: posted_from_iid
-  if (_has_field_[1]) {
-    msg->AppendVarInt(1, posted_from_iid_);
-  }
-
-  msg->AppendRawProtoBytes(unknown_fields_.data(), unknown_fields_.size());
-}
-
-}  // namespace perfetto
-}  // namespace protos
-}  // namespace gen
-#if defined(__GNUC__) || defined(__clang__)
-#pragma GCC diagnostic pop
-#endif
-// gen_amalgamated begin source: gen/protos/perfetto/trace/track_event/thread_descriptor.gen.cc
-// gen_amalgamated begin header: gen/protos/perfetto/trace/track_event/thread_descriptor.gen.h
-// DO NOT EDIT. Autogenerated by Perfetto cppgen_plugin
-#ifndef PERFETTO_PROTOS_PROTOS_PERFETTO_TRACE_TRACK_EVENT_THREAD_DESCRIPTOR_PROTO_CPP_H_
-#define PERFETTO_PROTOS_PROTOS_PERFETTO_TRACE_TRACK_EVENT_THREAD_DESCRIPTOR_PROTO_CPP_H_
-
-#include <stdint.h>
-#include <bitset>
-#include <vector>
-#include <string>
-#include <type_traits>
-
-// gen_amalgamated expanded: #include "perfetto/protozero/cpp_message_obj.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/copyable_ptr.h"
-// gen_amalgamated expanded: #include "perfetto/base/export.h"
-
-namespace perfetto {
-namespace protos {
-namespace gen {
-class ThreadDescriptor;
-enum ThreadDescriptor_ChromeThreadType : int;
-}  // namespace perfetto
-}  // namespace protos
-}  // namespace gen
-
-namespace protozero {
-class Message;
-}  // namespace protozero
-
-namespace perfetto {
-namespace protos {
-namespace gen {
-enum ThreadDescriptor_ChromeThreadType : int {
-  ThreadDescriptor_ChromeThreadType_CHROME_THREAD_UNSPECIFIED = 0,
-  ThreadDescriptor_ChromeThreadType_CHROME_THREAD_MAIN = 1,
-  ThreadDescriptor_ChromeThreadType_CHROME_THREAD_IO = 2,
-  ThreadDescriptor_ChromeThreadType_CHROME_THREAD_POOL_BG_WORKER = 3,
-  ThreadDescriptor_ChromeThreadType_CHROME_THREAD_POOL_FG_WORKER = 4,
-  ThreadDescriptor_ChromeThreadType_CHROME_THREAD_POOL_FB_BLOCKING = 5,
-  ThreadDescriptor_ChromeThreadType_CHROME_THREAD_POOL_BG_BLOCKING = 6,
-  ThreadDescriptor_ChromeThreadType_CHROME_THREAD_POOL_SERVICE = 7,
-  ThreadDescriptor_ChromeThreadType_CHROME_THREAD_COMPOSITOR = 8,
-  ThreadDescriptor_ChromeThreadType_CHROME_THREAD_VIZ_COMPOSITOR = 9,
-  ThreadDescriptor_ChromeThreadType_CHROME_THREAD_COMPOSITOR_WORKER = 10,
-  ThreadDescriptor_ChromeThreadType_CHROME_THREAD_SERVICE_WORKER = 11,
-  ThreadDescriptor_ChromeThreadType_CHROME_THREAD_MEMORY_INFRA = 50,
-  ThreadDescriptor_ChromeThreadType_CHROME_THREAD_SAMPLING_PROFILER = 51,
-};
-
-class PERFETTO_EXPORT ThreadDescriptor : public ::protozero::CppMessageObj {
- public:
-  using ChromeThreadType = ThreadDescriptor_ChromeThreadType;
-  static constexpr auto CHROME_THREAD_UNSPECIFIED = ThreadDescriptor_ChromeThreadType_CHROME_THREAD_UNSPECIFIED;
-  static constexpr auto CHROME_THREAD_MAIN = ThreadDescriptor_ChromeThreadType_CHROME_THREAD_MAIN;
-  static constexpr auto CHROME_THREAD_IO = ThreadDescriptor_ChromeThreadType_CHROME_THREAD_IO;
-  static constexpr auto CHROME_THREAD_POOL_BG_WORKER = ThreadDescriptor_ChromeThreadType_CHROME_THREAD_POOL_BG_WORKER;
-  static constexpr auto CHROME_THREAD_POOL_FG_WORKER = ThreadDescriptor_ChromeThreadType_CHROME_THREAD_POOL_FG_WORKER;
-  static constexpr auto CHROME_THREAD_POOL_FB_BLOCKING = ThreadDescriptor_ChromeThreadType_CHROME_THREAD_POOL_FB_BLOCKING;
-  static constexpr auto CHROME_THREAD_POOL_BG_BLOCKING = ThreadDescriptor_ChromeThreadType_CHROME_THREAD_POOL_BG_BLOCKING;
-  static constexpr auto CHROME_THREAD_POOL_SERVICE = ThreadDescriptor_ChromeThreadType_CHROME_THREAD_POOL_SERVICE;
-  static constexpr auto CHROME_THREAD_COMPOSITOR = ThreadDescriptor_ChromeThreadType_CHROME_THREAD_COMPOSITOR;
-  static constexpr auto CHROME_THREAD_VIZ_COMPOSITOR = ThreadDescriptor_ChromeThreadType_CHROME_THREAD_VIZ_COMPOSITOR;
-  static constexpr auto CHROME_THREAD_COMPOSITOR_WORKER = ThreadDescriptor_ChromeThreadType_CHROME_THREAD_COMPOSITOR_WORKER;
-  static constexpr auto CHROME_THREAD_SERVICE_WORKER = ThreadDescriptor_ChromeThreadType_CHROME_THREAD_SERVICE_WORKER;
-  static constexpr auto CHROME_THREAD_MEMORY_INFRA = ThreadDescriptor_ChromeThreadType_CHROME_THREAD_MEMORY_INFRA;
-  static constexpr auto CHROME_THREAD_SAMPLING_PROFILER = ThreadDescriptor_ChromeThreadType_CHROME_THREAD_SAMPLING_PROFILER;
-  static constexpr auto ChromeThreadType_MIN = ThreadDescriptor_ChromeThreadType_CHROME_THREAD_UNSPECIFIED;
-  static constexpr auto ChromeThreadType_MAX = ThreadDescriptor_ChromeThreadType_CHROME_THREAD_SAMPLING_PROFILER;
-  enum FieldNumbers {
-    kPidFieldNumber = 1,
-    kTidFieldNumber = 2,
-    kThreadNameFieldNumber = 5,
-    kChromeThreadTypeFieldNumber = 4,
-    kReferenceTimestampUsFieldNumber = 6,
-    kReferenceThreadTimeUsFieldNumber = 7,
-    kReferenceThreadInstructionCountFieldNumber = 8,
-    kLegacySortIndexFieldNumber = 3,
-  };
-
-  ThreadDescriptor();
-  ~ThreadDescriptor() override;
-  ThreadDescriptor(ThreadDescriptor&&) noexcept;
-  ThreadDescriptor& operator=(ThreadDescriptor&&);
-  ThreadDescriptor(const ThreadDescriptor&);
-  ThreadDescriptor& operator=(const ThreadDescriptor&);
-  bool operator==(const ThreadDescriptor&) const;
-  bool operator!=(const ThreadDescriptor& other) const { return !(*this == other); }
-
-  bool ParseFromArray(const void*, size_t) override;
-  std::string SerializeAsString() const override;
-  std::vector<uint8_t> SerializeAsArray() const override;
-  void Serialize(::protozero::Message*) const;
-
-  bool has_pid() const { return _has_field_[1]; }
-  int32_t pid() const { return pid_; }
-  void set_pid(int32_t value) { pid_ = value; _has_field_.set(1); }
-
-  bool has_tid() const { return _has_field_[2]; }
-  int32_t tid() const { return tid_; }
-  void set_tid(int32_t value) { tid_ = value; _has_field_.set(2); }
-
-  bool has_thread_name() const { return _has_field_[5]; }
-  const std::string& thread_name() const { return thread_name_; }
-  void set_thread_name(const std::string& value) { thread_name_ = value; _has_field_.set(5); }
-
-  bool has_chrome_thread_type() const { return _has_field_[4]; }
-  ThreadDescriptor_ChromeThreadType chrome_thread_type() const { return chrome_thread_type_; }
-  void set_chrome_thread_type(ThreadDescriptor_ChromeThreadType value) { chrome_thread_type_ = value; _has_field_.set(4); }
-
-  bool has_reference_timestamp_us() const { return _has_field_[6]; }
-  int64_t reference_timestamp_us() const { return reference_timestamp_us_; }
-  void set_reference_timestamp_us(int64_t value) { reference_timestamp_us_ = value; _has_field_.set(6); }
-
-  bool has_reference_thread_time_us() const { return _has_field_[7]; }
-  int64_t reference_thread_time_us() const { return reference_thread_time_us_; }
-  void set_reference_thread_time_us(int64_t value) { reference_thread_time_us_ = value; _has_field_.set(7); }
-
-  bool has_reference_thread_instruction_count() const { return _has_field_[8]; }
-  int64_t reference_thread_instruction_count() const { return reference_thread_instruction_count_; }
-  void set_reference_thread_instruction_count(int64_t value) { reference_thread_instruction_count_ = value; _has_field_.set(8); }
-
-  bool has_legacy_sort_index() const { return _has_field_[3]; }
-  int32_t legacy_sort_index() const { return legacy_sort_index_; }
-  void set_legacy_sort_index(int32_t value) { legacy_sort_index_ = value; _has_field_.set(3); }
-
- private:
-  int32_t pid_{};
-  int32_t tid_{};
-  std::string thread_name_{};
-  ThreadDescriptor_ChromeThreadType chrome_thread_type_{};
-  int64_t reference_timestamp_us_{};
-  int64_t reference_thread_time_us_{};
-  int64_t reference_thread_instruction_count_{};
-  int32_t legacy_sort_index_{};
-
-  // Allows to preserve unknown protobuf fields for compatibility
-  // with future versions of .proto files.
-  std::string unknown_fields_;
-
-  std::bitset<9> _has_field_{};
-};
-
-}  // namespace perfetto
-}  // namespace protos
-}  // namespace gen
-
-#endif  // PERFETTO_PROTOS_PROTOS_PERFETTO_TRACE_TRACK_EVENT_THREAD_DESCRIPTOR_PROTO_CPP_H_
-// gen_amalgamated expanded: #include "perfetto/protozero/message.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/packed_repeated_fields.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/proto_decoder.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/scattered_heap_buffer.h"
-// DO NOT EDIT. Autogenerated by Perfetto cppgen_plugin
-#if defined(__GNUC__) || defined(__clang__)
-#pragma GCC diagnostic push
-#pragma GCC diagnostic ignored "-Wfloat-equal"
-#endif
-// gen_amalgamated expanded: #include "protos/perfetto/trace/track_event/thread_descriptor.gen.h"
-
-namespace perfetto {
-namespace protos {
-namespace gen {
-
-ThreadDescriptor::ThreadDescriptor() = default;
-ThreadDescriptor::~ThreadDescriptor() = default;
-ThreadDescriptor::ThreadDescriptor(const ThreadDescriptor&) = default;
-ThreadDescriptor& ThreadDescriptor::operator=(const ThreadDescriptor&) = default;
-ThreadDescriptor::ThreadDescriptor(ThreadDescriptor&&) noexcept = default;
-ThreadDescriptor& ThreadDescriptor::operator=(ThreadDescriptor&&) = default;
-
-bool ThreadDescriptor::operator==(const ThreadDescriptor& other) const {
-  return unknown_fields_ == other.unknown_fields_
-   && pid_ == other.pid_
-   && tid_ == other.tid_
-   && thread_name_ == other.thread_name_
-   && chrome_thread_type_ == other.chrome_thread_type_
-   && reference_timestamp_us_ == other.reference_timestamp_us_
-   && reference_thread_time_us_ == other.reference_thread_time_us_
-   && reference_thread_instruction_count_ == other.reference_thread_instruction_count_
-   && legacy_sort_index_ == other.legacy_sort_index_;
-}
-
-bool ThreadDescriptor::ParseFromArray(const void* raw, size_t size) {
-  unknown_fields_.clear();
-  bool packed_error = false;
-
-  ::protozero::ProtoDecoder dec(raw, size);
-  for (auto field = dec.ReadField(); field.valid(); field = dec.ReadField()) {
-    if (field.id() < _has_field_.size()) {
-      _has_field_.set(field.id());
-    }
-    switch (field.id()) {
-      case 1 /* pid */:
-        field.get(&pid_);
-        break;
-      case 2 /* tid */:
-        field.get(&tid_);
-        break;
-      case 5 /* thread_name */:
-        field.get(&thread_name_);
-        break;
-      case 4 /* chrome_thread_type */:
-        field.get(&chrome_thread_type_);
-        break;
-      case 6 /* reference_timestamp_us */:
-        field.get(&reference_timestamp_us_);
-        break;
-      case 7 /* reference_thread_time_us */:
-        field.get(&reference_thread_time_us_);
-        break;
-      case 8 /* reference_thread_instruction_count */:
-        field.get(&reference_thread_instruction_count_);
-        break;
-      case 3 /* legacy_sort_index */:
-        field.get(&legacy_sort_index_);
-        break;
-      default:
-        field.SerializeAndAppendTo(&unknown_fields_);
-        break;
-    }
-  }
-  return !packed_error && !dec.bytes_left();
-}
-
-std::string ThreadDescriptor::SerializeAsString() const {
-  ::protozero::HeapBuffered<::protozero::Message> msg;
-  Serialize(msg.get());
-  return msg.SerializeAsString();
-}
-
-std::vector<uint8_t> ThreadDescriptor::SerializeAsArray() const {
-  ::protozero::HeapBuffered<::protozero::Message> msg;
-  Serialize(msg.get());
-  return msg.SerializeAsArray();
-}
-
-void ThreadDescriptor::Serialize(::protozero::Message* msg) const {
-  // Field 1: pid
-  if (_has_field_[1]) {
-    msg->AppendVarInt(1, pid_);
-  }
-
-  // Field 2: tid
-  if (_has_field_[2]) {
-    msg->AppendVarInt(2, tid_);
-  }
-
-  // Field 5: thread_name
-  if (_has_field_[5]) {
-    msg->AppendString(5, thread_name_);
-  }
-
-  // Field 4: chrome_thread_type
-  if (_has_field_[4]) {
-    msg->AppendVarInt(4, chrome_thread_type_);
-  }
-
-  // Field 6: reference_timestamp_us
-  if (_has_field_[6]) {
-    msg->AppendVarInt(6, reference_timestamp_us_);
-  }
-
-  // Field 7: reference_thread_time_us
-  if (_has_field_[7]) {
-    msg->AppendVarInt(7, reference_thread_time_us_);
-  }
-
-  // Field 8: reference_thread_instruction_count
-  if (_has_field_[8]) {
-    msg->AppendVarInt(8, reference_thread_instruction_count_);
-  }
-
-  // Field 3: legacy_sort_index
-  if (_has_field_[3]) {
-    msg->AppendVarInt(3, legacy_sort_index_);
-  }
-
-  msg->AppendRawProtoBytes(unknown_fields_.data(), unknown_fields_.size());
-}
-
-}  // namespace perfetto
-}  // namespace protos
-}  // namespace gen
-#if defined(__GNUC__) || defined(__clang__)
-#pragma GCC diagnostic pop
-#endif
-// gen_amalgamated begin source: gen/protos/perfetto/trace/track_event/track_descriptor.gen.cc
-// gen_amalgamated expanded: #include "perfetto/protozero/message.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/packed_repeated_fields.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/proto_decoder.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/scattered_heap_buffer.h"
-// DO NOT EDIT. Autogenerated by Perfetto cppgen_plugin
-#if defined(__GNUC__) || defined(__clang__)
-#pragma GCC diagnostic push
-#pragma GCC diagnostic ignored "-Wfloat-equal"
-#endif
-// gen_amalgamated expanded: #include "protos/perfetto/trace/track_event/track_descriptor.gen.h"
-// gen_amalgamated expanded: #include "protos/perfetto/trace/track_event/counter_descriptor.gen.h"
-// gen_amalgamated expanded: #include "protos/perfetto/trace/track_event/thread_descriptor.gen.h"
-// gen_amalgamated expanded: #include "protos/perfetto/trace/track_event/process_descriptor.gen.h"
-// gen_amalgamated expanded: #include "protos/perfetto/trace/track_event/chrome_thread_descriptor.gen.h"
-// gen_amalgamated expanded: #include "protos/perfetto/trace/track_event/chrome_process_descriptor.gen.h"
-
-namespace perfetto {
-namespace protos {
-namespace gen {
-
-TrackDescriptor::TrackDescriptor() = default;
-TrackDescriptor::~TrackDescriptor() = default;
-TrackDescriptor::TrackDescriptor(const TrackDescriptor&) = default;
-TrackDescriptor& TrackDescriptor::operator=(const TrackDescriptor&) = default;
-TrackDescriptor::TrackDescriptor(TrackDescriptor&&) noexcept = default;
-TrackDescriptor& TrackDescriptor::operator=(TrackDescriptor&&) = default;
-
-bool TrackDescriptor::operator==(const TrackDescriptor& other) const {
-  return unknown_fields_ == other.unknown_fields_
-   && uuid_ == other.uuid_
-   && parent_uuid_ == other.parent_uuid_
-   && name_ == other.name_
-   && process_ == other.process_
-   && chrome_process_ == other.chrome_process_
-   && thread_ == other.thread_
-   && chrome_thread_ == other.chrome_thread_
-   && counter_ == other.counter_;
-}
-
-bool TrackDescriptor::ParseFromArray(const void* raw, size_t size) {
-  unknown_fields_.clear();
-  bool packed_error = false;
-
-  ::protozero::ProtoDecoder dec(raw, size);
-  for (auto field = dec.ReadField(); field.valid(); field = dec.ReadField()) {
-    if (field.id() < _has_field_.size()) {
-      _has_field_.set(field.id());
-    }
-    switch (field.id()) {
-      case 1 /* uuid */:
-        field.get(&uuid_);
-        break;
-      case 5 /* parent_uuid */:
-        field.get(&parent_uuid_);
-        break;
-      case 2 /* name */:
-        field.get(&name_);
-        break;
-      case 3 /* process */:
-        (*process_).ParseFromArray(field.data(), field.size());
-        break;
-      case 6 /* chrome_process */:
-        (*chrome_process_).ParseFromArray(field.data(), field.size());
-        break;
-      case 4 /* thread */:
-        (*thread_).ParseFromArray(field.data(), field.size());
-        break;
-      case 7 /* chrome_thread */:
-        (*chrome_thread_).ParseFromArray(field.data(), field.size());
-        break;
-      case 8 /* counter */:
-        (*counter_).ParseFromArray(field.data(), field.size());
-        break;
-      default:
-        field.SerializeAndAppendTo(&unknown_fields_);
-        break;
-    }
-  }
-  return !packed_error && !dec.bytes_left();
-}
-
-std::string TrackDescriptor::SerializeAsString() const {
-  ::protozero::HeapBuffered<::protozero::Message> msg;
-  Serialize(msg.get());
-  return msg.SerializeAsString();
-}
-
-std::vector<uint8_t> TrackDescriptor::SerializeAsArray() const {
-  ::protozero::HeapBuffered<::protozero::Message> msg;
-  Serialize(msg.get());
-  return msg.SerializeAsArray();
-}
-
-void TrackDescriptor::Serialize(::protozero::Message* msg) const {
-  // Field 1: uuid
-  if (_has_field_[1]) {
-    msg->AppendVarInt(1, uuid_);
-  }
-
-  // Field 5: parent_uuid
-  if (_has_field_[5]) {
-    msg->AppendVarInt(5, parent_uuid_);
-  }
-
-  // Field 2: name
-  if (_has_field_[2]) {
-    msg->AppendString(2, name_);
-  }
-
-  // Field 3: process
-  if (_has_field_[3]) {
-    (*process_).Serialize(msg->BeginNestedMessage<::protozero::Message>(3));
-  }
-
-  // Field 6: chrome_process
-  if (_has_field_[6]) {
-    (*chrome_process_).Serialize(msg->BeginNestedMessage<::protozero::Message>(6));
-  }
-
-  // Field 4: thread
-  if (_has_field_[4]) {
-    (*thread_).Serialize(msg->BeginNestedMessage<::protozero::Message>(4));
-  }
-
-  // Field 7: chrome_thread
-  if (_has_field_[7]) {
-    (*chrome_thread_).Serialize(msg->BeginNestedMessage<::protozero::Message>(7));
-  }
-
-  // Field 8: counter
-  if (_has_field_[8]) {
-    (*counter_).Serialize(msg->BeginNestedMessage<::protozero::Message>(8));
-  }
-
-  msg->AppendRawProtoBytes(unknown_fields_.data(), unknown_fields_.size());
-}
-
-}  // namespace perfetto
-}  // namespace protos
-}  // namespace gen
-#if defined(__GNUC__) || defined(__clang__)
-#pragma GCC diagnostic pop
-#endif
-// gen_amalgamated begin source: gen/protos/perfetto/trace/track_event/track_event.gen.cc
-// gen_amalgamated begin header: gen/protos/perfetto/trace/track_event/track_event.gen.h
-// DO NOT EDIT. Autogenerated by Perfetto cppgen_plugin
-#ifndef PERFETTO_PROTOS_PROTOS_PERFETTO_TRACE_TRACK_EVENT_TRACK_EVENT_PROTO_CPP_H_
-#define PERFETTO_PROTOS_PROTOS_PERFETTO_TRACE_TRACK_EVENT_TRACK_EVENT_PROTO_CPP_H_
-
-#include <stdint.h>
-#include <bitset>
-#include <vector>
-#include <string>
-#include <type_traits>
-
-// gen_amalgamated expanded: #include "perfetto/protozero/cpp_message_obj.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/copyable_ptr.h"
-// gen_amalgamated expanded: #include "perfetto/base/export.h"
-
-namespace perfetto {
-namespace protos {
-namespace gen {
-class EventName;
-class EventCategory;
-class TrackEventDefaults;
-class TrackEvent;
-class TrackEvent_LegacyEvent;
-class ChromeMojoEventInfo;
-class ChromeMessagePump;
-class SourceLocation;
-class ChromeContentSettingsEventInfo;
-class ChromeWindowHandleEventInfo;
-class ChromeRendererSchedulerState;
-class ChromeApplicationStateInfo;
-class ChromeFrameReporter;
-class ChromeLatencyInfo;
-class ChromeLatencyInfo_ComponentInfo;
-class ChromeHistogramSample;
-class ChromeLegacyIpc;
-class ChromeKeyedService;
-class ChromeUserEvent;
-class ChromeCompositorSchedulerState;
-class CompositorTimingHistory;
-class BeginFrameSourceState;
-class BeginFrameArgs;
-class BeginFrameObserverState;
-class BeginImplFrameArgs;
-class BeginImplFrameArgs_TimestampsInUs;
-class ChromeCompositorStateMachine;
-class ChromeCompositorStateMachine_MinorState;
-class ChromeCompositorStateMachine_MajorState;
-class LogMessage;
-class TaskExecution;
-class DebugAnnotation;
-class DebugAnnotation_NestedValue;
-enum TrackEvent_Type : int;
-enum TrackEvent_LegacyEvent_FlowDirection : int;
-enum TrackEvent_LegacyEvent_InstantEventScope : int;
-enum ChromeRAILMode : int;
-enum ChromeApplicationStateInfo_ChromeApplicationState : int;
-enum ChromeFrameReporter_State : int;
-enum ChromeFrameReporter_FrameDropReason : int;
-enum ChromeFrameReporter_ScrollState : int;
-enum ChromeLatencyInfo_Step : int;
-enum ChromeLatencyInfo_LatencyComponentType : int;
-enum ChromeLegacyIpc_MessageClass : int;
-enum ChromeCompositorSchedulerState_BeginImplFrameDeadlineMode : int;
-enum ChromeCompositorSchedulerAction : int;
-enum BeginFrameArgs_BeginFrameArgsType : int;
-enum BeginImplFrameArgs_State : int;
-enum ChromeCompositorStateMachine_MinorState_TreePriority : int;
-enum ChromeCompositorStateMachine_MinorState_ScrollHandlerState : int;
-enum ChromeCompositorStateMachine_MajorState_BeginImplFrameState : int;
-enum ChromeCompositorStateMachine_MajorState_BeginMainFrameState : int;
-enum ChromeCompositorStateMachine_MajorState_LayerTreeFrameSinkState : int;
-enum ChromeCompositorStateMachine_MajorState_ForcedRedrawOnTimeoutState : int;
-enum DebugAnnotation_NestedValue_NestedType : int;
-}  // namespace perfetto
-}  // namespace protos
-}  // namespace gen
-
-namespace protozero {
-class Message;
-}  // namespace protozero
-
-namespace perfetto {
-namespace protos {
-namespace gen {
-enum TrackEvent_Type : int {
-  TrackEvent_Type_TYPE_UNSPECIFIED = 0,
-  TrackEvent_Type_TYPE_SLICE_BEGIN = 1,
-  TrackEvent_Type_TYPE_SLICE_END = 2,
-  TrackEvent_Type_TYPE_INSTANT = 3,
-  TrackEvent_Type_TYPE_COUNTER = 4,
-};
-enum TrackEvent_LegacyEvent_FlowDirection : int {
-  TrackEvent_LegacyEvent_FlowDirection_FLOW_UNSPECIFIED = 0,
-  TrackEvent_LegacyEvent_FlowDirection_FLOW_IN = 1,
-  TrackEvent_LegacyEvent_FlowDirection_FLOW_OUT = 2,
-  TrackEvent_LegacyEvent_FlowDirection_FLOW_INOUT = 3,
-};
-enum TrackEvent_LegacyEvent_InstantEventScope : int {
-  TrackEvent_LegacyEvent_InstantEventScope_SCOPE_UNSPECIFIED = 0,
-  TrackEvent_LegacyEvent_InstantEventScope_SCOPE_GLOBAL = 1,
-  TrackEvent_LegacyEvent_InstantEventScope_SCOPE_PROCESS = 2,
-  TrackEvent_LegacyEvent_InstantEventScope_SCOPE_THREAD = 3,
-};
-
-class PERFETTO_EXPORT EventName : public ::protozero::CppMessageObj {
- public:
-  enum FieldNumbers {
-    kIidFieldNumber = 1,
-    kNameFieldNumber = 2,
-  };
-
-  EventName();
-  ~EventName() override;
-  EventName(EventName&&) noexcept;
-  EventName& operator=(EventName&&);
-  EventName(const EventName&);
-  EventName& operator=(const EventName&);
-  bool operator==(const EventName&) const;
-  bool operator!=(const EventName& other) const { return !(*this == other); }
-
-  bool ParseFromArray(const void*, size_t) override;
-  std::string SerializeAsString() const override;
-  std::vector<uint8_t> SerializeAsArray() const override;
-  void Serialize(::protozero::Message*) const;
-
-  bool has_iid() const { return _has_field_[1]; }
-  uint64_t iid() const { return iid_; }
-  void set_iid(uint64_t value) { iid_ = value; _has_field_.set(1); }
-
-  bool has_name() const { return _has_field_[2]; }
-  const std::string& name() const { return name_; }
-  void set_name(const std::string& value) { name_ = value; _has_field_.set(2); }
-
- private:
-  uint64_t iid_{};
-  std::string name_{};
-
-  // Allows to preserve unknown protobuf fields for compatibility
-  // with future versions of .proto files.
-  std::string unknown_fields_;
-
-  std::bitset<3> _has_field_{};
-};
-
-
-class PERFETTO_EXPORT EventCategory : public ::protozero::CppMessageObj {
- public:
-  enum FieldNumbers {
-    kIidFieldNumber = 1,
-    kNameFieldNumber = 2,
-  };
-
-  EventCategory();
-  ~EventCategory() override;
-  EventCategory(EventCategory&&) noexcept;
-  EventCategory& operator=(EventCategory&&);
-  EventCategory(const EventCategory&);
-  EventCategory& operator=(const EventCategory&);
-  bool operator==(const EventCategory&) const;
-  bool operator!=(const EventCategory& other) const { return !(*this == other); }
-
-  bool ParseFromArray(const void*, size_t) override;
-  std::string SerializeAsString() const override;
-  std::vector<uint8_t> SerializeAsArray() const override;
-  void Serialize(::protozero::Message*) const;
-
-  bool has_iid() const { return _has_field_[1]; }
-  uint64_t iid() const { return iid_; }
-  void set_iid(uint64_t value) { iid_ = value; _has_field_.set(1); }
-
-  bool has_name() const { return _has_field_[2]; }
-  const std::string& name() const { return name_; }
-  void set_name(const std::string& value) { name_ = value; _has_field_.set(2); }
-
- private:
-  uint64_t iid_{};
-  std::string name_{};
-
-  // Allows to preserve unknown protobuf fields for compatibility
-  // with future versions of .proto files.
-  std::string unknown_fields_;
-
-  std::bitset<3> _has_field_{};
-};
-
-
-class PERFETTO_EXPORT TrackEventDefaults : public ::protozero::CppMessageObj {
- public:
-  enum FieldNumbers {
-    kTrackUuidFieldNumber = 11,
-    kExtraCounterTrackUuidsFieldNumber = 31,
-    kExtraDoubleCounterTrackUuidsFieldNumber = 45,
-  };
-
-  TrackEventDefaults();
-  ~TrackEventDefaults() override;
-  TrackEventDefaults(TrackEventDefaults&&) noexcept;
-  TrackEventDefaults& operator=(TrackEventDefaults&&);
-  TrackEventDefaults(const TrackEventDefaults&);
-  TrackEventDefaults& operator=(const TrackEventDefaults&);
-  bool operator==(const TrackEventDefaults&) const;
-  bool operator!=(const TrackEventDefaults& other) const { return !(*this == other); }
-
-  bool ParseFromArray(const void*, size_t) override;
-  std::string SerializeAsString() const override;
-  std::vector<uint8_t> SerializeAsArray() const override;
-  void Serialize(::protozero::Message*) const;
-
-  bool has_track_uuid() const { return _has_field_[11]; }
-  uint64_t track_uuid() const { return track_uuid_; }
-  void set_track_uuid(uint64_t value) { track_uuid_ = value; _has_field_.set(11); }
-
-  const std::vector<uint64_t>& extra_counter_track_uuids() const { return extra_counter_track_uuids_; }
-  std::vector<uint64_t>* mutable_extra_counter_track_uuids() { return &extra_counter_track_uuids_; }
-  int extra_counter_track_uuids_size() const { return static_cast<int>(extra_counter_track_uuids_.size()); }
-  void clear_extra_counter_track_uuids() { extra_counter_track_uuids_.clear(); }
-  void add_extra_counter_track_uuids(uint64_t value) { extra_counter_track_uuids_.emplace_back(value); }
-  uint64_t* add_extra_counter_track_uuids() { extra_counter_track_uuids_.emplace_back(); return &extra_counter_track_uuids_.back(); }
-
-  const std::vector<uint64_t>& extra_double_counter_track_uuids() const { return extra_double_counter_track_uuids_; }
-  std::vector<uint64_t>* mutable_extra_double_counter_track_uuids() { return &extra_double_counter_track_uuids_; }
-  int extra_double_counter_track_uuids_size() const { return static_cast<int>(extra_double_counter_track_uuids_.size()); }
-  void clear_extra_double_counter_track_uuids() { extra_double_counter_track_uuids_.clear(); }
-  void add_extra_double_counter_track_uuids(uint64_t value) { extra_double_counter_track_uuids_.emplace_back(value); }
-  uint64_t* add_extra_double_counter_track_uuids() { extra_double_counter_track_uuids_.emplace_back(); return &extra_double_counter_track_uuids_.back(); }
-
- private:
-  uint64_t track_uuid_{};
-  std::vector<uint64_t> extra_counter_track_uuids_;
-  std::vector<uint64_t> extra_double_counter_track_uuids_;
-
-  // Allows to preserve unknown protobuf fields for compatibility
-  // with future versions of .proto files.
-  std::string unknown_fields_;
-
-  std::bitset<46> _has_field_{};
-};
-
-
-class PERFETTO_EXPORT TrackEvent : public ::protozero::CppMessageObj {
- public:
-  using LegacyEvent = TrackEvent_LegacyEvent;
-  using Type = TrackEvent_Type;
-  static constexpr auto TYPE_UNSPECIFIED = TrackEvent_Type_TYPE_UNSPECIFIED;
-  static constexpr auto TYPE_SLICE_BEGIN = TrackEvent_Type_TYPE_SLICE_BEGIN;
-  static constexpr auto TYPE_SLICE_END = TrackEvent_Type_TYPE_SLICE_END;
-  static constexpr auto TYPE_INSTANT = TrackEvent_Type_TYPE_INSTANT;
-  static constexpr auto TYPE_COUNTER = TrackEvent_Type_TYPE_COUNTER;
-  static constexpr auto Type_MIN = TrackEvent_Type_TYPE_UNSPECIFIED;
-  static constexpr auto Type_MAX = TrackEvent_Type_TYPE_COUNTER;
-  enum FieldNumbers {
-    kCategoryIidsFieldNumber = 3,
-    kCategoriesFieldNumber = 22,
-    kNameIidFieldNumber = 10,
-    kNameFieldNumber = 23,
-    kTypeFieldNumber = 9,
-    kTrackUuidFieldNumber = 11,
-    kCounterValueFieldNumber = 30,
-    kDoubleCounterValueFieldNumber = 44,
-    kExtraCounterTrackUuidsFieldNumber = 31,
-    kExtraCounterValuesFieldNumber = 12,
-    kExtraDoubleCounterTrackUuidsFieldNumber = 45,
-    kExtraDoubleCounterValuesFieldNumber = 46,
-    kFlowIdsFieldNumber = 36,
-    kTerminatingFlowIdsFieldNumber = 42,
-    kDebugAnnotationsFieldNumber = 4,
-    kTaskExecutionFieldNumber = 5,
-    kLogMessageFieldNumber = 21,
-    kCcSchedulerStateFieldNumber = 24,
-    kChromeUserEventFieldNumber = 25,
-    kChromeKeyedServiceFieldNumber = 26,
-    kChromeLegacyIpcFieldNumber = 27,
-    kChromeHistogramSampleFieldNumber = 28,
-    kChromeLatencyInfoFieldNumber = 29,
-    kChromeFrameReporterFieldNumber = 32,
-    kChromeApplicationStateInfoFieldNumber = 39,
-    kChromeRendererSchedulerStateFieldNumber = 40,
-    kChromeWindowHandleEventInfoFieldNumber = 41,
-    kChromeContentSettingsEventInfoFieldNumber = 43,
-    kSourceLocationFieldNumber = 33,
-    kSourceLocationIidFieldNumber = 34,
-    kChromeMessagePumpFieldNumber = 35,
-    kChromeMojoEventInfoFieldNumber = 38,
-    kTimestampDeltaUsFieldNumber = 1,
-    kTimestampAbsoluteUsFieldNumber = 16,
-    kThreadTimeDeltaUsFieldNumber = 2,
-    kThreadTimeAbsoluteUsFieldNumber = 17,
-    kThreadInstructionCountDeltaFieldNumber = 8,
-    kThreadInstructionCountAbsoluteFieldNumber = 20,
-    kLegacyEventFieldNumber = 6,
-  };
-
-  TrackEvent();
-  ~TrackEvent() override;
-  TrackEvent(TrackEvent&&) noexcept;
-  TrackEvent& operator=(TrackEvent&&);
-  TrackEvent(const TrackEvent&);
-  TrackEvent& operator=(const TrackEvent&);
-  bool operator==(const TrackEvent&) const;
-  bool operator!=(const TrackEvent& other) const { return !(*this == other); }
-
-  bool ParseFromArray(const void*, size_t) override;
-  std::string SerializeAsString() const override;
-  std::vector<uint8_t> SerializeAsArray() const override;
-  void Serialize(::protozero::Message*) const;
-
-  const std::vector<uint64_t>& category_iids() const { return category_iids_; }
-  std::vector<uint64_t>* mutable_category_iids() { return &category_iids_; }
-  int category_iids_size() const { return static_cast<int>(category_iids_.size()); }
-  void clear_category_iids() { category_iids_.clear(); }
-  void add_category_iids(uint64_t value) { category_iids_.emplace_back(value); }
-  uint64_t* add_category_iids() { category_iids_.emplace_back(); return &category_iids_.back(); }
-
-  const std::vector<std::string>& categories() const { return categories_; }
-  std::vector<std::string>* mutable_categories() { return &categories_; }
-  int categories_size() const { return static_cast<int>(categories_.size()); }
-  void clear_categories() { categories_.clear(); }
-  void add_categories(std::string value) { categories_.emplace_back(value); }
-  std::string* add_categories() { categories_.emplace_back(); return &categories_.back(); }
-
-  bool has_name_iid() const { return _has_field_[10]; }
-  uint64_t name_iid() const { return name_iid_; }
-  void set_name_iid(uint64_t value) { name_iid_ = value; _has_field_.set(10); }
-
-  bool has_name() const { return _has_field_[23]; }
-  const std::string& name() const { return name_; }
-  void set_name(const std::string& value) { name_ = value; _has_field_.set(23); }
-
-  bool has_type() const { return _has_field_[9]; }
-  TrackEvent_Type type() const { return type_; }
-  void set_type(TrackEvent_Type value) { type_ = value; _has_field_.set(9); }
-
-  bool has_track_uuid() const { return _has_field_[11]; }
-  uint64_t track_uuid() const { return track_uuid_; }
-  void set_track_uuid(uint64_t value) { track_uuid_ = value; _has_field_.set(11); }
-
-  bool has_counter_value() const { return _has_field_[30]; }
-  int64_t counter_value() const { return counter_value_; }
-  void set_counter_value(int64_t value) { counter_value_ = value; _has_field_.set(30); }
-
-  bool has_double_counter_value() const { return _has_field_[44]; }
-  double double_counter_value() const { return double_counter_value_; }
-  void set_double_counter_value(double value) { double_counter_value_ = value; _has_field_.set(44); }
-
-  const std::vector<uint64_t>& extra_counter_track_uuids() const { return extra_counter_track_uuids_; }
-  std::vector<uint64_t>* mutable_extra_counter_track_uuids() { return &extra_counter_track_uuids_; }
-  int extra_counter_track_uuids_size() const { return static_cast<int>(extra_counter_track_uuids_.size()); }
-  void clear_extra_counter_track_uuids() { extra_counter_track_uuids_.clear(); }
-  void add_extra_counter_track_uuids(uint64_t value) { extra_counter_track_uuids_.emplace_back(value); }
-  uint64_t* add_extra_counter_track_uuids() { extra_counter_track_uuids_.emplace_back(); return &extra_counter_track_uuids_.back(); }
-
-  const std::vector<int64_t>& extra_counter_values() const { return extra_counter_values_; }
-  std::vector<int64_t>* mutable_extra_counter_values() { return &extra_counter_values_; }
-  int extra_counter_values_size() const { return static_cast<int>(extra_counter_values_.size()); }
-  void clear_extra_counter_values() { extra_counter_values_.clear(); }
-  void add_extra_counter_values(int64_t value) { extra_counter_values_.emplace_back(value); }
-  int64_t* add_extra_counter_values() { extra_counter_values_.emplace_back(); return &extra_counter_values_.back(); }
-
-  const std::vector<uint64_t>& extra_double_counter_track_uuids() const { return extra_double_counter_track_uuids_; }
-  std::vector<uint64_t>* mutable_extra_double_counter_track_uuids() { return &extra_double_counter_track_uuids_; }
-  int extra_double_counter_track_uuids_size() const { return static_cast<int>(extra_double_counter_track_uuids_.size()); }
-  void clear_extra_double_counter_track_uuids() { extra_double_counter_track_uuids_.clear(); }
-  void add_extra_double_counter_track_uuids(uint64_t value) { extra_double_counter_track_uuids_.emplace_back(value); }
-  uint64_t* add_extra_double_counter_track_uuids() { extra_double_counter_track_uuids_.emplace_back(); return &extra_double_counter_track_uuids_.back(); }
-
-  const std::vector<double>& extra_double_counter_values() const { return extra_double_counter_values_; }
-  std::vector<double>* mutable_extra_double_counter_values() { return &extra_double_counter_values_; }
-  int extra_double_counter_values_size() const { return static_cast<int>(extra_double_counter_values_.size()); }
-  void clear_extra_double_counter_values() { extra_double_counter_values_.clear(); }
-  void add_extra_double_counter_values(double value) { extra_double_counter_values_.emplace_back(value); }
-  double* add_extra_double_counter_values() { extra_double_counter_values_.emplace_back(); return &extra_double_counter_values_.back(); }
-
-  const std::vector<uint64_t>& flow_ids() const { return flow_ids_; }
-  std::vector<uint64_t>* mutable_flow_ids() { return &flow_ids_; }
-  int flow_ids_size() const { return static_cast<int>(flow_ids_.size()); }
-  void clear_flow_ids() { flow_ids_.clear(); }
-  void add_flow_ids(uint64_t value) { flow_ids_.emplace_back(value); }
-  uint64_t* add_flow_ids() { flow_ids_.emplace_back(); return &flow_ids_.back(); }
-
-  const std::vector<uint64_t>& terminating_flow_ids() const { return terminating_flow_ids_; }
-  std::vector<uint64_t>* mutable_terminating_flow_ids() { return &terminating_flow_ids_; }
-  int terminating_flow_ids_size() const { return static_cast<int>(terminating_flow_ids_.size()); }
-  void clear_terminating_flow_ids() { terminating_flow_ids_.clear(); }
-  void add_terminating_flow_ids(uint64_t value) { terminating_flow_ids_.emplace_back(value); }
-  uint64_t* add_terminating_flow_ids() { terminating_flow_ids_.emplace_back(); return &terminating_flow_ids_.back(); }
-
-  const std::vector<DebugAnnotation>& debug_annotations() const { return debug_annotations_; }
-  std::vector<DebugAnnotation>* mutable_debug_annotations() { return &debug_annotations_; }
-  int debug_annotations_size() const;
-  void clear_debug_annotations();
-  DebugAnnotation* add_debug_annotations();
-
-  bool has_task_execution() const { return _has_field_[5]; }
-  const TaskExecution& task_execution() const { return *task_execution_; }
-  TaskExecution* mutable_task_execution() { _has_field_.set(5); return task_execution_.get(); }
-
-  bool has_log_message() const { return _has_field_[21]; }
-  const LogMessage& log_message() const { return *log_message_; }
-  LogMessage* mutable_log_message() { _has_field_.set(21); return log_message_.get(); }
-
-  bool has_cc_scheduler_state() const { return _has_field_[24]; }
-  const ChromeCompositorSchedulerState& cc_scheduler_state() const { return *cc_scheduler_state_; }
-  ChromeCompositorSchedulerState* mutable_cc_scheduler_state() { _has_field_.set(24); return cc_scheduler_state_.get(); }
-
-  bool has_chrome_user_event() const { return _has_field_[25]; }
-  const ChromeUserEvent& chrome_user_event() const { return *chrome_user_event_; }
-  ChromeUserEvent* mutable_chrome_user_event() { _has_field_.set(25); return chrome_user_event_.get(); }
-
-  bool has_chrome_keyed_service() const { return _has_field_[26]; }
-  const ChromeKeyedService& chrome_keyed_service() const { return *chrome_keyed_service_; }
-  ChromeKeyedService* mutable_chrome_keyed_service() { _has_field_.set(26); return chrome_keyed_service_.get(); }
-
-  bool has_chrome_legacy_ipc() const { return _has_field_[27]; }
-  const ChromeLegacyIpc& chrome_legacy_ipc() const { return *chrome_legacy_ipc_; }
-  ChromeLegacyIpc* mutable_chrome_legacy_ipc() { _has_field_.set(27); return chrome_legacy_ipc_.get(); }
-
-  bool has_chrome_histogram_sample() const { return _has_field_[28]; }
-  const ChromeHistogramSample& chrome_histogram_sample() const { return *chrome_histogram_sample_; }
-  ChromeHistogramSample* mutable_chrome_histogram_sample() { _has_field_.set(28); return chrome_histogram_sample_.get(); }
-
-  bool has_chrome_latency_info() const { return _has_field_[29]; }
-  const ChromeLatencyInfo& chrome_latency_info() const { return *chrome_latency_info_; }
-  ChromeLatencyInfo* mutable_chrome_latency_info() { _has_field_.set(29); return chrome_latency_info_.get(); }
-
-  bool has_chrome_frame_reporter() const { return _has_field_[32]; }
-  const ChromeFrameReporter& chrome_frame_reporter() const { return *chrome_frame_reporter_; }
-  ChromeFrameReporter* mutable_chrome_frame_reporter() { _has_field_.set(32); return chrome_frame_reporter_.get(); }
-
-  bool has_chrome_application_state_info() const { return _has_field_[39]; }
-  const ChromeApplicationStateInfo& chrome_application_state_info() const { return *chrome_application_state_info_; }
-  ChromeApplicationStateInfo* mutable_chrome_application_state_info() { _has_field_.set(39); return chrome_application_state_info_.get(); }
-
-  bool has_chrome_renderer_scheduler_state() const { return _has_field_[40]; }
-  const ChromeRendererSchedulerState& chrome_renderer_scheduler_state() const { return *chrome_renderer_scheduler_state_; }
-  ChromeRendererSchedulerState* mutable_chrome_renderer_scheduler_state() { _has_field_.set(40); return chrome_renderer_scheduler_state_.get(); }
-
-  bool has_chrome_window_handle_event_info() const { return _has_field_[41]; }
-  const ChromeWindowHandleEventInfo& chrome_window_handle_event_info() const { return *chrome_window_handle_event_info_; }
-  ChromeWindowHandleEventInfo* mutable_chrome_window_handle_event_info() { _has_field_.set(41); return chrome_window_handle_event_info_.get(); }
-
-  bool has_chrome_content_settings_event_info() const { return _has_field_[43]; }
-  const ChromeContentSettingsEventInfo& chrome_content_settings_event_info() const { return *chrome_content_settings_event_info_; }
-  ChromeContentSettingsEventInfo* mutable_chrome_content_settings_event_info() { _has_field_.set(43); return chrome_content_settings_event_info_.get(); }
-
-  bool has_source_location() const { return _has_field_[33]; }
-  const SourceLocation& source_location() const { return *source_location_; }
-  SourceLocation* mutable_source_location() { _has_field_.set(33); return source_location_.get(); }
-
-  bool has_source_location_iid() const { return _has_field_[34]; }
-  uint64_t source_location_iid() const { return source_location_iid_; }
-  void set_source_location_iid(uint64_t value) { source_location_iid_ = value; _has_field_.set(34); }
-
-  bool has_chrome_message_pump() const { return _has_field_[35]; }
-  const ChromeMessagePump& chrome_message_pump() const { return *chrome_message_pump_; }
-  ChromeMessagePump* mutable_chrome_message_pump() { _has_field_.set(35); return chrome_message_pump_.get(); }
-
-  bool has_chrome_mojo_event_info() const { return _has_field_[38]; }
-  const ChromeMojoEventInfo& chrome_mojo_event_info() const { return *chrome_mojo_event_info_; }
-  ChromeMojoEventInfo* mutable_chrome_mojo_event_info() { _has_field_.set(38); return chrome_mojo_event_info_.get(); }
-
-  bool has_timestamp_delta_us() const { return _has_field_[1]; }
-  int64_t timestamp_delta_us() const { return timestamp_delta_us_; }
-  void set_timestamp_delta_us(int64_t value) { timestamp_delta_us_ = value; _has_field_.set(1); }
-
-  bool has_timestamp_absolute_us() const { return _has_field_[16]; }
-  int64_t timestamp_absolute_us() const { return timestamp_absolute_us_; }
-  void set_timestamp_absolute_us(int64_t value) { timestamp_absolute_us_ = value; _has_field_.set(16); }
-
-  bool has_thread_time_delta_us() const { return _has_field_[2]; }
-  int64_t thread_time_delta_us() const { return thread_time_delta_us_; }
-  void set_thread_time_delta_us(int64_t value) { thread_time_delta_us_ = value; _has_field_.set(2); }
-
-  bool has_thread_time_absolute_us() const { return _has_field_[17]; }
-  int64_t thread_time_absolute_us() const { return thread_time_absolute_us_; }
-  void set_thread_time_absolute_us(int64_t value) { thread_time_absolute_us_ = value; _has_field_.set(17); }
-
-  bool has_thread_instruction_count_delta() const { return _has_field_[8]; }
-  int64_t thread_instruction_count_delta() const { return thread_instruction_count_delta_; }
-  void set_thread_instruction_count_delta(int64_t value) { thread_instruction_count_delta_ = value; _has_field_.set(8); }
-
-  bool has_thread_instruction_count_absolute() const { return _has_field_[20]; }
-  int64_t thread_instruction_count_absolute() const { return thread_instruction_count_absolute_; }
-  void set_thread_instruction_count_absolute(int64_t value) { thread_instruction_count_absolute_ = value; _has_field_.set(20); }
-
-  bool has_legacy_event() const { return _has_field_[6]; }
-  const TrackEvent_LegacyEvent& legacy_event() const { return *legacy_event_; }
-  TrackEvent_LegacyEvent* mutable_legacy_event() { _has_field_.set(6); return legacy_event_.get(); }
-
- private:
-  std::vector<uint64_t> category_iids_;
-  std::vector<std::string> categories_;
-  uint64_t name_iid_{};
-  std::string name_{};
-  TrackEvent_Type type_{};
-  uint64_t track_uuid_{};
-  int64_t counter_value_{};
-  double double_counter_value_{};
-  std::vector<uint64_t> extra_counter_track_uuids_;
-  std::vector<int64_t> extra_counter_values_;
-  std::vector<uint64_t> extra_double_counter_track_uuids_;
-  std::vector<double> extra_double_counter_values_;
-  std::vector<uint64_t> flow_ids_;
-  std::vector<uint64_t> terminating_flow_ids_;
-  std::vector<DebugAnnotation> debug_annotations_;
-  ::protozero::CopyablePtr<TaskExecution> task_execution_;
-  ::protozero::CopyablePtr<LogMessage> log_message_;
-  ::protozero::CopyablePtr<ChromeCompositorSchedulerState> cc_scheduler_state_;
-  ::protozero::CopyablePtr<ChromeUserEvent> chrome_user_event_;
-  ::protozero::CopyablePtr<ChromeKeyedService> chrome_keyed_service_;
-  ::protozero::CopyablePtr<ChromeLegacyIpc> chrome_legacy_ipc_;
-  ::protozero::CopyablePtr<ChromeHistogramSample> chrome_histogram_sample_;
-  ::protozero::CopyablePtr<ChromeLatencyInfo> chrome_latency_info_;
-  ::protozero::CopyablePtr<ChromeFrameReporter> chrome_frame_reporter_;
-  ::protozero::CopyablePtr<ChromeApplicationStateInfo> chrome_application_state_info_;
-  ::protozero::CopyablePtr<ChromeRendererSchedulerState> chrome_renderer_scheduler_state_;
-  ::protozero::CopyablePtr<ChromeWindowHandleEventInfo> chrome_window_handle_event_info_;
-  ::protozero::CopyablePtr<ChromeContentSettingsEventInfo> chrome_content_settings_event_info_;
-  ::protozero::CopyablePtr<SourceLocation> source_location_;
-  uint64_t source_location_iid_{};
-  ::protozero::CopyablePtr<ChromeMessagePump> chrome_message_pump_;
-  ::protozero::CopyablePtr<ChromeMojoEventInfo> chrome_mojo_event_info_;
-  int64_t timestamp_delta_us_{};
-  int64_t timestamp_absolute_us_{};
-  int64_t thread_time_delta_us_{};
-  int64_t thread_time_absolute_us_{};
-  int64_t thread_instruction_count_delta_{};
-  int64_t thread_instruction_count_absolute_{};
-  ::protozero::CopyablePtr<TrackEvent_LegacyEvent> legacy_event_;
-
-  // Allows to preserve unknown protobuf fields for compatibility
-  // with future versions of .proto files.
-  std::string unknown_fields_;
-
-  std::bitset<47> _has_field_{};
-};
-
-
-class PERFETTO_EXPORT TrackEvent_LegacyEvent : public ::protozero::CppMessageObj {
- public:
-  using FlowDirection = TrackEvent_LegacyEvent_FlowDirection;
-  static constexpr auto FLOW_UNSPECIFIED = TrackEvent_LegacyEvent_FlowDirection_FLOW_UNSPECIFIED;
-  static constexpr auto FLOW_IN = TrackEvent_LegacyEvent_FlowDirection_FLOW_IN;
-  static constexpr auto FLOW_OUT = TrackEvent_LegacyEvent_FlowDirection_FLOW_OUT;
-  static constexpr auto FLOW_INOUT = TrackEvent_LegacyEvent_FlowDirection_FLOW_INOUT;
-  static constexpr auto FlowDirection_MIN = TrackEvent_LegacyEvent_FlowDirection_FLOW_UNSPECIFIED;
-  static constexpr auto FlowDirection_MAX = TrackEvent_LegacyEvent_FlowDirection_FLOW_INOUT;
-  using InstantEventScope = TrackEvent_LegacyEvent_InstantEventScope;
-  static constexpr auto SCOPE_UNSPECIFIED = TrackEvent_LegacyEvent_InstantEventScope_SCOPE_UNSPECIFIED;
-  static constexpr auto SCOPE_GLOBAL = TrackEvent_LegacyEvent_InstantEventScope_SCOPE_GLOBAL;
-  static constexpr auto SCOPE_PROCESS = TrackEvent_LegacyEvent_InstantEventScope_SCOPE_PROCESS;
-  static constexpr auto SCOPE_THREAD = TrackEvent_LegacyEvent_InstantEventScope_SCOPE_THREAD;
-  static constexpr auto InstantEventScope_MIN = TrackEvent_LegacyEvent_InstantEventScope_SCOPE_UNSPECIFIED;
-  static constexpr auto InstantEventScope_MAX = TrackEvent_LegacyEvent_InstantEventScope_SCOPE_THREAD;
-  enum FieldNumbers {
-    kNameIidFieldNumber = 1,
-    kPhaseFieldNumber = 2,
-    kDurationUsFieldNumber = 3,
-    kThreadDurationUsFieldNumber = 4,
-    kThreadInstructionDeltaFieldNumber = 15,
-    kUnscopedIdFieldNumber = 6,
-    kLocalIdFieldNumber = 10,
-    kGlobalIdFieldNumber = 11,
-    kIdScopeFieldNumber = 7,
-    kUseAsyncTtsFieldNumber = 9,
-    kBindIdFieldNumber = 8,
-    kBindToEnclosingFieldNumber = 12,
-    kFlowDirectionFieldNumber = 13,
-    kInstantEventScopeFieldNumber = 14,
-    kPidOverrideFieldNumber = 18,
-    kTidOverrideFieldNumber = 19,
-  };
-
-  TrackEvent_LegacyEvent();
-  ~TrackEvent_LegacyEvent() override;
-  TrackEvent_LegacyEvent(TrackEvent_LegacyEvent&&) noexcept;
-  TrackEvent_LegacyEvent& operator=(TrackEvent_LegacyEvent&&);
-  TrackEvent_LegacyEvent(const TrackEvent_LegacyEvent&);
-  TrackEvent_LegacyEvent& operator=(const TrackEvent_LegacyEvent&);
-  bool operator==(const TrackEvent_LegacyEvent&) const;
-  bool operator!=(const TrackEvent_LegacyEvent& other) const { return !(*this == other); }
-
-  bool ParseFromArray(const void*, size_t) override;
-  std::string SerializeAsString() const override;
-  std::vector<uint8_t> SerializeAsArray() const override;
-  void Serialize(::protozero::Message*) const;
-
-  bool has_name_iid() const { return _has_field_[1]; }
-  uint64_t name_iid() const { return name_iid_; }
-  void set_name_iid(uint64_t value) { name_iid_ = value; _has_field_.set(1); }
-
-  bool has_phase() const { return _has_field_[2]; }
-  int32_t phase() const { return phase_; }
-  void set_phase(int32_t value) { phase_ = value; _has_field_.set(2); }
-
-  bool has_duration_us() const { return _has_field_[3]; }
-  int64_t duration_us() const { return duration_us_; }
-  void set_duration_us(int64_t value) { duration_us_ = value; _has_field_.set(3); }
-
-  bool has_thread_duration_us() const { return _has_field_[4]; }
-  int64_t thread_duration_us() const { return thread_duration_us_; }
-  void set_thread_duration_us(int64_t value) { thread_duration_us_ = value; _has_field_.set(4); }
-
-  bool has_thread_instruction_delta() const { return _has_field_[15]; }
-  int64_t thread_instruction_delta() const { return thread_instruction_delta_; }
-  void set_thread_instruction_delta(int64_t value) { thread_instruction_delta_ = value; _has_field_.set(15); }
-
-  bool has_unscoped_id() const { return _has_field_[6]; }
-  uint64_t unscoped_id() const { return unscoped_id_; }
-  void set_unscoped_id(uint64_t value) { unscoped_id_ = value; _has_field_.set(6); }
-
-  bool has_local_id() const { return _has_field_[10]; }
-  uint64_t local_id() const { return local_id_; }
-  void set_local_id(uint64_t value) { local_id_ = value; _has_field_.set(10); }
-
-  bool has_global_id() const { return _has_field_[11]; }
-  uint64_t global_id() const { return global_id_; }
-  void set_global_id(uint64_t value) { global_id_ = value; _has_field_.set(11); }
-
-  bool has_id_scope() const { return _has_field_[7]; }
-  const std::string& id_scope() const { return id_scope_; }
-  void set_id_scope(const std::string& value) { id_scope_ = value; _has_field_.set(7); }
-
-  bool has_use_async_tts() const { return _has_field_[9]; }
-  bool use_async_tts() const { return use_async_tts_; }
-  void set_use_async_tts(bool value) { use_async_tts_ = value; _has_field_.set(9); }
-
-  bool has_bind_id() const { return _has_field_[8]; }
-  uint64_t bind_id() const { return bind_id_; }
-  void set_bind_id(uint64_t value) { bind_id_ = value; _has_field_.set(8); }
-
-  bool has_bind_to_enclosing() const { return _has_field_[12]; }
-  bool bind_to_enclosing() const { return bind_to_enclosing_; }
-  void set_bind_to_enclosing(bool value) { bind_to_enclosing_ = value; _has_field_.set(12); }
-
-  bool has_flow_direction() const { return _has_field_[13]; }
-  TrackEvent_LegacyEvent_FlowDirection flow_direction() const { return flow_direction_; }
-  void set_flow_direction(TrackEvent_LegacyEvent_FlowDirection value) { flow_direction_ = value; _has_field_.set(13); }
-
-  bool has_instant_event_scope() const { return _has_field_[14]; }
-  TrackEvent_LegacyEvent_InstantEventScope instant_event_scope() const { return instant_event_scope_; }
-  void set_instant_event_scope(TrackEvent_LegacyEvent_InstantEventScope value) { instant_event_scope_ = value; _has_field_.set(14); }
-
-  bool has_pid_override() const { return _has_field_[18]; }
-  int32_t pid_override() const { return pid_override_; }
-  void set_pid_override(int32_t value) { pid_override_ = value; _has_field_.set(18); }
-
-  bool has_tid_override() const { return _has_field_[19]; }
-  int32_t tid_override() const { return tid_override_; }
-  void set_tid_override(int32_t value) { tid_override_ = value; _has_field_.set(19); }
-
- private:
-  uint64_t name_iid_{};
-  int32_t phase_{};
-  int64_t duration_us_{};
-  int64_t thread_duration_us_{};
-  int64_t thread_instruction_delta_{};
-  uint64_t unscoped_id_{};
-  uint64_t local_id_{};
-  uint64_t global_id_{};
-  std::string id_scope_{};
-  bool use_async_tts_{};
-  uint64_t bind_id_{};
-  bool bind_to_enclosing_{};
-  TrackEvent_LegacyEvent_FlowDirection flow_direction_{};
-  TrackEvent_LegacyEvent_InstantEventScope instant_event_scope_{};
-  int32_t pid_override_{};
-  int32_t tid_override_{};
-
-  // Allows to preserve unknown protobuf fields for compatibility
-  // with future versions of .proto files.
-  std::string unknown_fields_;
-
-  std::bitset<20> _has_field_{};
-};
-
-}  // namespace perfetto
-}  // namespace protos
-}  // namespace gen
-
-#endif  // PERFETTO_PROTOS_PROTOS_PERFETTO_TRACE_TRACK_EVENT_TRACK_EVENT_PROTO_CPP_H_
-// gen_amalgamated expanded: #include "perfetto/protozero/message.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/packed_repeated_fields.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/proto_decoder.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/scattered_heap_buffer.h"
-// DO NOT EDIT. Autogenerated by Perfetto cppgen_plugin
-#if defined(__GNUC__) || defined(__clang__)
-#pragma GCC diagnostic push
-#pragma GCC diagnostic ignored "-Wfloat-equal"
-#endif
-// gen_amalgamated expanded: #include "protos/perfetto/trace/track_event/track_event.gen.h"
-// gen_amalgamated expanded: #include "protos/perfetto/trace/track_event/source_location.gen.h"
-// gen_amalgamated expanded: #include "protos/perfetto/trace/track_event/chrome_window_handle_event_info.gen.h"
-// gen_amalgamated expanded: #include "protos/perfetto/trace/track_event/chrome_user_event.gen.h"
-// gen_amalgamated expanded: #include "protos/perfetto/trace/track_event/chrome_renderer_scheduler_state.gen.h"
-// gen_amalgamated expanded: #include "protos/perfetto/trace/track_event/chrome_mojo_event_info.gen.h"
-// gen_amalgamated expanded: #include "protos/perfetto/trace/track_event/chrome_message_pump.gen.h"
-// gen_amalgamated expanded: #include "protos/perfetto/trace/track_event/chrome_legacy_ipc.gen.h"
-// gen_amalgamated expanded: #include "protos/perfetto/trace/track_event/chrome_latency_info.gen.h"
-// gen_amalgamated expanded: #include "protos/perfetto/trace/track_event/chrome_keyed_service.gen.h"
-// gen_amalgamated expanded: #include "protos/perfetto/trace/track_event/chrome_histogram_sample.gen.h"
-// gen_amalgamated expanded: #include "protos/perfetto/trace/track_event/chrome_frame_reporter.gen.h"
-// gen_amalgamated expanded: #include "protos/perfetto/trace/track_event/chrome_content_settings_event_info.gen.h"
-// gen_amalgamated expanded: #include "protos/perfetto/trace/track_event/chrome_compositor_scheduler_state.gen.h"
-// gen_amalgamated expanded: #include "protos/perfetto/trace/track_event/chrome_application_state_info.gen.h"
-// gen_amalgamated expanded: #include "protos/perfetto/trace/track_event/task_execution.gen.h"
-// gen_amalgamated expanded: #include "protos/perfetto/trace/track_event/log_message.gen.h"
-// gen_amalgamated expanded: #include "protos/perfetto/trace/track_event/debug_annotation.gen.h"
-
-namespace perfetto {
-namespace protos {
-namespace gen {
-
-EventName::EventName() = default;
-EventName::~EventName() = default;
-EventName::EventName(const EventName&) = default;
-EventName& EventName::operator=(const EventName&) = default;
-EventName::EventName(EventName&&) noexcept = default;
-EventName& EventName::operator=(EventName&&) = default;
-
-bool EventName::operator==(const EventName& other) const {
-  return unknown_fields_ == other.unknown_fields_
-   && iid_ == other.iid_
-   && name_ == other.name_;
-}
-
-bool EventName::ParseFromArray(const void* raw, size_t size) {
-  unknown_fields_.clear();
-  bool packed_error = false;
-
-  ::protozero::ProtoDecoder dec(raw, size);
-  for (auto field = dec.ReadField(); field.valid(); field = dec.ReadField()) {
-    if (field.id() < _has_field_.size()) {
-      _has_field_.set(field.id());
-    }
-    switch (field.id()) {
-      case 1 /* iid */:
-        field.get(&iid_);
-        break;
-      case 2 /* name */:
-        field.get(&name_);
-        break;
-      default:
-        field.SerializeAndAppendTo(&unknown_fields_);
-        break;
-    }
-  }
-  return !packed_error && !dec.bytes_left();
-}
-
-std::string EventName::SerializeAsString() const {
-  ::protozero::HeapBuffered<::protozero::Message> msg;
-  Serialize(msg.get());
-  return msg.SerializeAsString();
-}
-
-std::vector<uint8_t> EventName::SerializeAsArray() const {
-  ::protozero::HeapBuffered<::protozero::Message> msg;
-  Serialize(msg.get());
-  return msg.SerializeAsArray();
-}
-
-void EventName::Serialize(::protozero::Message* msg) const {
-  // Field 1: iid
-  if (_has_field_[1]) {
-    msg->AppendVarInt(1, iid_);
-  }
-
-  // Field 2: name
-  if (_has_field_[2]) {
-    msg->AppendString(2, name_);
-  }
-
-  msg->AppendRawProtoBytes(unknown_fields_.data(), unknown_fields_.size());
-}
-
-
-EventCategory::EventCategory() = default;
-EventCategory::~EventCategory() = default;
-EventCategory::EventCategory(const EventCategory&) = default;
-EventCategory& EventCategory::operator=(const EventCategory&) = default;
-EventCategory::EventCategory(EventCategory&&) noexcept = default;
-EventCategory& EventCategory::operator=(EventCategory&&) = default;
-
-bool EventCategory::operator==(const EventCategory& other) const {
-  return unknown_fields_ == other.unknown_fields_
-   && iid_ == other.iid_
-   && name_ == other.name_;
-}
-
-bool EventCategory::ParseFromArray(const void* raw, size_t size) {
-  unknown_fields_.clear();
-  bool packed_error = false;
-
-  ::protozero::ProtoDecoder dec(raw, size);
-  for (auto field = dec.ReadField(); field.valid(); field = dec.ReadField()) {
-    if (field.id() < _has_field_.size()) {
-      _has_field_.set(field.id());
-    }
-    switch (field.id()) {
-      case 1 /* iid */:
-        field.get(&iid_);
-        break;
-      case 2 /* name */:
-        field.get(&name_);
-        break;
-      default:
-        field.SerializeAndAppendTo(&unknown_fields_);
-        break;
-    }
-  }
-  return !packed_error && !dec.bytes_left();
-}
-
-std::string EventCategory::SerializeAsString() const {
-  ::protozero::HeapBuffered<::protozero::Message> msg;
-  Serialize(msg.get());
-  return msg.SerializeAsString();
-}
-
-std::vector<uint8_t> EventCategory::SerializeAsArray() const {
-  ::protozero::HeapBuffered<::protozero::Message> msg;
-  Serialize(msg.get());
-  return msg.SerializeAsArray();
-}
-
-void EventCategory::Serialize(::protozero::Message* msg) const {
-  // Field 1: iid
-  if (_has_field_[1]) {
-    msg->AppendVarInt(1, iid_);
-  }
-
-  // Field 2: name
-  if (_has_field_[2]) {
-    msg->AppendString(2, name_);
-  }
-
-  msg->AppendRawProtoBytes(unknown_fields_.data(), unknown_fields_.size());
-}
-
-
-TrackEventDefaults::TrackEventDefaults() = default;
-TrackEventDefaults::~TrackEventDefaults() = default;
-TrackEventDefaults::TrackEventDefaults(const TrackEventDefaults&) = default;
-TrackEventDefaults& TrackEventDefaults::operator=(const TrackEventDefaults&) = default;
-TrackEventDefaults::TrackEventDefaults(TrackEventDefaults&&) noexcept = default;
-TrackEventDefaults& TrackEventDefaults::operator=(TrackEventDefaults&&) = default;
-
-bool TrackEventDefaults::operator==(const TrackEventDefaults& other) const {
-  return unknown_fields_ == other.unknown_fields_
-   && track_uuid_ == other.track_uuid_
-   && extra_counter_track_uuids_ == other.extra_counter_track_uuids_
-   && extra_double_counter_track_uuids_ == other.extra_double_counter_track_uuids_;
-}
-
-bool TrackEventDefaults::ParseFromArray(const void* raw, size_t size) {
-  extra_counter_track_uuids_.clear();
-  extra_double_counter_track_uuids_.clear();
-  unknown_fields_.clear();
-  bool packed_error = false;
-
-  ::protozero::ProtoDecoder dec(raw, size);
-  for (auto field = dec.ReadField(); field.valid(); field = dec.ReadField()) {
-    if (field.id() < _has_field_.size()) {
-      _has_field_.set(field.id());
-    }
-    switch (field.id()) {
-      case 11 /* track_uuid */:
-        field.get(&track_uuid_);
-        break;
-      case 31 /* extra_counter_track_uuids */:
-        extra_counter_track_uuids_.emplace_back();
-        field.get(&extra_counter_track_uuids_.back());
-        break;
-      case 45 /* extra_double_counter_track_uuids */:
-        extra_double_counter_track_uuids_.emplace_back();
-        field.get(&extra_double_counter_track_uuids_.back());
-        break;
-      default:
-        field.SerializeAndAppendTo(&unknown_fields_);
-        break;
-    }
-  }
-  return !packed_error && !dec.bytes_left();
-}
-
-std::string TrackEventDefaults::SerializeAsString() const {
-  ::protozero::HeapBuffered<::protozero::Message> msg;
-  Serialize(msg.get());
-  return msg.SerializeAsString();
-}
-
-std::vector<uint8_t> TrackEventDefaults::SerializeAsArray() const {
-  ::protozero::HeapBuffered<::protozero::Message> msg;
-  Serialize(msg.get());
-  return msg.SerializeAsArray();
-}
-
-void TrackEventDefaults::Serialize(::protozero::Message* msg) const {
-  // Field 11: track_uuid
-  if (_has_field_[11]) {
-    msg->AppendVarInt(11, track_uuid_);
-  }
-
-  // Field 31: extra_counter_track_uuids
-  for (auto& it : extra_counter_track_uuids_) {
-    msg->AppendVarInt(31, it);
-  }
-
-  // Field 45: extra_double_counter_track_uuids
-  for (auto& it : extra_double_counter_track_uuids_) {
-    msg->AppendVarInt(45, it);
-  }
-
-  msg->AppendRawProtoBytes(unknown_fields_.data(), unknown_fields_.size());
-}
-
-
-TrackEvent::TrackEvent() = default;
-TrackEvent::~TrackEvent() = default;
-TrackEvent::TrackEvent(const TrackEvent&) = default;
-TrackEvent& TrackEvent::operator=(const TrackEvent&) = default;
-TrackEvent::TrackEvent(TrackEvent&&) noexcept = default;
-TrackEvent& TrackEvent::operator=(TrackEvent&&) = default;
-
-bool TrackEvent::operator==(const TrackEvent& other) const {
-  return unknown_fields_ == other.unknown_fields_
-   && category_iids_ == other.category_iids_
-   && categories_ == other.categories_
-   && name_iid_ == other.name_iid_
-   && name_ == other.name_
-   && type_ == other.type_
-   && track_uuid_ == other.track_uuid_
-   && counter_value_ == other.counter_value_
-   && double_counter_value_ == other.double_counter_value_
-   && extra_counter_track_uuids_ == other.extra_counter_track_uuids_
-   && extra_counter_values_ == other.extra_counter_values_
-   && extra_double_counter_track_uuids_ == other.extra_double_counter_track_uuids_
-   && extra_double_counter_values_ == other.extra_double_counter_values_
-   && flow_ids_ == other.flow_ids_
-   && terminating_flow_ids_ == other.terminating_flow_ids_
-   && debug_annotations_ == other.debug_annotations_
-   && task_execution_ == other.task_execution_
-   && log_message_ == other.log_message_
-   && cc_scheduler_state_ == other.cc_scheduler_state_
-   && chrome_user_event_ == other.chrome_user_event_
-   && chrome_keyed_service_ == other.chrome_keyed_service_
-   && chrome_legacy_ipc_ == other.chrome_legacy_ipc_
-   && chrome_histogram_sample_ == other.chrome_histogram_sample_
-   && chrome_latency_info_ == other.chrome_latency_info_
-   && chrome_frame_reporter_ == other.chrome_frame_reporter_
-   && chrome_application_state_info_ == other.chrome_application_state_info_
-   && chrome_renderer_scheduler_state_ == other.chrome_renderer_scheduler_state_
-   && chrome_window_handle_event_info_ == other.chrome_window_handle_event_info_
-   && chrome_content_settings_event_info_ == other.chrome_content_settings_event_info_
-   && source_location_ == other.source_location_
-   && source_location_iid_ == other.source_location_iid_
-   && chrome_message_pump_ == other.chrome_message_pump_
-   && chrome_mojo_event_info_ == other.chrome_mojo_event_info_
-   && timestamp_delta_us_ == other.timestamp_delta_us_
-   && timestamp_absolute_us_ == other.timestamp_absolute_us_
-   && thread_time_delta_us_ == other.thread_time_delta_us_
-   && thread_time_absolute_us_ == other.thread_time_absolute_us_
-   && thread_instruction_count_delta_ == other.thread_instruction_count_delta_
-   && thread_instruction_count_absolute_ == other.thread_instruction_count_absolute_
-   && legacy_event_ == other.legacy_event_;
-}
-
-int TrackEvent::debug_annotations_size() const { return static_cast<int>(debug_annotations_.size()); }
-void TrackEvent::clear_debug_annotations() { debug_annotations_.clear(); }
-DebugAnnotation* TrackEvent::add_debug_annotations() { debug_annotations_.emplace_back(); return &debug_annotations_.back(); }
-bool TrackEvent::ParseFromArray(const void* raw, size_t size) {
-  category_iids_.clear();
-  categories_.clear();
-  extra_counter_track_uuids_.clear();
-  extra_counter_values_.clear();
-  extra_double_counter_track_uuids_.clear();
-  extra_double_counter_values_.clear();
-  flow_ids_.clear();
-  terminating_flow_ids_.clear();
-  debug_annotations_.clear();
-  unknown_fields_.clear();
-  bool packed_error = false;
-
-  ::protozero::ProtoDecoder dec(raw, size);
-  for (auto field = dec.ReadField(); field.valid(); field = dec.ReadField()) {
-    if (field.id() < _has_field_.size()) {
-      _has_field_.set(field.id());
-    }
-    switch (field.id()) {
-      case 3 /* category_iids */:
-        category_iids_.emplace_back();
-        field.get(&category_iids_.back());
-        break;
-      case 22 /* categories */:
-        categories_.emplace_back();
-        field.get(&categories_.back());
-        break;
-      case 10 /* name_iid */:
-        field.get(&name_iid_);
-        break;
-      case 23 /* name */:
-        field.get(&name_);
-        break;
-      case 9 /* type */:
-        field.get(&type_);
-        break;
-      case 11 /* track_uuid */:
-        field.get(&track_uuid_);
-        break;
-      case 30 /* counter_value */:
-        field.get(&counter_value_);
-        break;
-      case 44 /* double_counter_value */:
-        field.get(&double_counter_value_);
-        break;
-      case 31 /* extra_counter_track_uuids */:
-        extra_counter_track_uuids_.emplace_back();
-        field.get(&extra_counter_track_uuids_.back());
-        break;
-      case 12 /* extra_counter_values */:
-        extra_counter_values_.emplace_back();
-        field.get(&extra_counter_values_.back());
-        break;
-      case 45 /* extra_double_counter_track_uuids */:
-        extra_double_counter_track_uuids_.emplace_back();
-        field.get(&extra_double_counter_track_uuids_.back());
-        break;
-      case 46 /* extra_double_counter_values */:
-        extra_double_counter_values_.emplace_back();
-        field.get(&extra_double_counter_values_.back());
-        break;
-      case 36 /* flow_ids */:
-        flow_ids_.emplace_back();
-        field.get(&flow_ids_.back());
-        break;
-      case 42 /* terminating_flow_ids */:
-        terminating_flow_ids_.emplace_back();
-        field.get(&terminating_flow_ids_.back());
-        break;
-      case 4 /* debug_annotations */:
-        debug_annotations_.emplace_back();
-        debug_annotations_.back().ParseFromArray(field.data(), field.size());
-        break;
-      case 5 /* task_execution */:
-        (*task_execution_).ParseFromArray(field.data(), field.size());
-        break;
-      case 21 /* log_message */:
-        (*log_message_).ParseFromArray(field.data(), field.size());
-        break;
-      case 24 /* cc_scheduler_state */:
-        (*cc_scheduler_state_).ParseFromArray(field.data(), field.size());
-        break;
-      case 25 /* chrome_user_event */:
-        (*chrome_user_event_).ParseFromArray(field.data(), field.size());
-        break;
-      case 26 /* chrome_keyed_service */:
-        (*chrome_keyed_service_).ParseFromArray(field.data(), field.size());
-        break;
-      case 27 /* chrome_legacy_ipc */:
-        (*chrome_legacy_ipc_).ParseFromArray(field.data(), field.size());
-        break;
-      case 28 /* chrome_histogram_sample */:
-        (*chrome_histogram_sample_).ParseFromArray(field.data(), field.size());
-        break;
-      case 29 /* chrome_latency_info */:
-        (*chrome_latency_info_).ParseFromArray(field.data(), field.size());
-        break;
-      case 32 /* chrome_frame_reporter */:
-        (*chrome_frame_reporter_).ParseFromArray(field.data(), field.size());
-        break;
-      case 39 /* chrome_application_state_info */:
-        (*chrome_application_state_info_).ParseFromArray(field.data(), field.size());
-        break;
-      case 40 /* chrome_renderer_scheduler_state */:
-        (*chrome_renderer_scheduler_state_).ParseFromArray(field.data(), field.size());
-        break;
-      case 41 /* chrome_window_handle_event_info */:
-        (*chrome_window_handle_event_info_).ParseFromArray(field.data(), field.size());
-        break;
-      case 43 /* chrome_content_settings_event_info */:
-        (*chrome_content_settings_event_info_).ParseFromArray(field.data(), field.size());
-        break;
-      case 33 /* source_location */:
-        (*source_location_).ParseFromArray(field.data(), field.size());
-        break;
-      case 34 /* source_location_iid */:
-        field.get(&source_location_iid_);
-        break;
-      case 35 /* chrome_message_pump */:
-        (*chrome_message_pump_).ParseFromArray(field.data(), field.size());
-        break;
-      case 38 /* chrome_mojo_event_info */:
-        (*chrome_mojo_event_info_).ParseFromArray(field.data(), field.size());
-        break;
-      case 1 /* timestamp_delta_us */:
-        field.get(&timestamp_delta_us_);
-        break;
-      case 16 /* timestamp_absolute_us */:
-        field.get(&timestamp_absolute_us_);
-        break;
-      case 2 /* thread_time_delta_us */:
-        field.get(&thread_time_delta_us_);
-        break;
-      case 17 /* thread_time_absolute_us */:
-        field.get(&thread_time_absolute_us_);
-        break;
-      case 8 /* thread_instruction_count_delta */:
-        field.get(&thread_instruction_count_delta_);
-        break;
-      case 20 /* thread_instruction_count_absolute */:
-        field.get(&thread_instruction_count_absolute_);
-        break;
-      case 6 /* legacy_event */:
-        (*legacy_event_).ParseFromArray(field.data(), field.size());
-        break;
-      default:
-        field.SerializeAndAppendTo(&unknown_fields_);
-        break;
-    }
-  }
-  return !packed_error && !dec.bytes_left();
-}
-
-std::string TrackEvent::SerializeAsString() const {
-  ::protozero::HeapBuffered<::protozero::Message> msg;
-  Serialize(msg.get());
-  return msg.SerializeAsString();
-}
-
-std::vector<uint8_t> TrackEvent::SerializeAsArray() const {
-  ::protozero::HeapBuffered<::protozero::Message> msg;
-  Serialize(msg.get());
-  return msg.SerializeAsArray();
-}
-
-void TrackEvent::Serialize(::protozero::Message* msg) const {
-  // Field 3: category_iids
-  for (auto& it : category_iids_) {
-    msg->AppendVarInt(3, it);
-  }
-
-  // Field 22: categories
-  for (auto& it : categories_) {
-    msg->AppendString(22, it);
-  }
-
-  // Field 10: name_iid
-  if (_has_field_[10]) {
-    msg->AppendVarInt(10, name_iid_);
-  }
-
-  // Field 23: name
-  if (_has_field_[23]) {
-    msg->AppendString(23, name_);
-  }
-
-  // Field 9: type
-  if (_has_field_[9]) {
-    msg->AppendVarInt(9, type_);
-  }
-
-  // Field 11: track_uuid
-  if (_has_field_[11]) {
-    msg->AppendVarInt(11, track_uuid_);
-  }
-
-  // Field 30: counter_value
-  if (_has_field_[30]) {
-    msg->AppendVarInt(30, counter_value_);
-  }
-
-  // Field 44: double_counter_value
-  if (_has_field_[44]) {
-    msg->AppendFixed(44, double_counter_value_);
-  }
-
-  // Field 31: extra_counter_track_uuids
-  for (auto& it : extra_counter_track_uuids_) {
-    msg->AppendVarInt(31, it);
-  }
-
-  // Field 12: extra_counter_values
-  for (auto& it : extra_counter_values_) {
-    msg->AppendVarInt(12, it);
-  }
-
-  // Field 45: extra_double_counter_track_uuids
-  for (auto& it : extra_double_counter_track_uuids_) {
-    msg->AppendVarInt(45, it);
-  }
-
-  // Field 46: extra_double_counter_values
-  for (auto& it : extra_double_counter_values_) {
-    msg->AppendFixed(46, it);
-  }
-
-  // Field 36: flow_ids
-  for (auto& it : flow_ids_) {
-    msg->AppendVarInt(36, it);
-  }
-
-  // Field 42: terminating_flow_ids
-  for (auto& it : terminating_flow_ids_) {
-    msg->AppendVarInt(42, it);
-  }
-
-  // Field 4: debug_annotations
-  for (auto& it : debug_annotations_) {
-    it.Serialize(msg->BeginNestedMessage<::protozero::Message>(4));
-  }
-
-  // Field 5: task_execution
-  if (_has_field_[5]) {
-    (*task_execution_).Serialize(msg->BeginNestedMessage<::protozero::Message>(5));
-  }
-
-  // Field 21: log_message
-  if (_has_field_[21]) {
-    (*log_message_).Serialize(msg->BeginNestedMessage<::protozero::Message>(21));
-  }
-
-  // Field 24: cc_scheduler_state
-  if (_has_field_[24]) {
-    (*cc_scheduler_state_).Serialize(msg->BeginNestedMessage<::protozero::Message>(24));
-  }
-
-  // Field 25: chrome_user_event
-  if (_has_field_[25]) {
-    (*chrome_user_event_).Serialize(msg->BeginNestedMessage<::protozero::Message>(25));
-  }
-
-  // Field 26: chrome_keyed_service
-  if (_has_field_[26]) {
-    (*chrome_keyed_service_).Serialize(msg->BeginNestedMessage<::protozero::Message>(26));
-  }
-
-  // Field 27: chrome_legacy_ipc
-  if (_has_field_[27]) {
-    (*chrome_legacy_ipc_).Serialize(msg->BeginNestedMessage<::protozero::Message>(27));
-  }
-
-  // Field 28: chrome_histogram_sample
-  if (_has_field_[28]) {
-    (*chrome_histogram_sample_).Serialize(msg->BeginNestedMessage<::protozero::Message>(28));
-  }
-
-  // Field 29: chrome_latency_info
-  if (_has_field_[29]) {
-    (*chrome_latency_info_).Serialize(msg->BeginNestedMessage<::protozero::Message>(29));
-  }
-
-  // Field 32: chrome_frame_reporter
-  if (_has_field_[32]) {
-    (*chrome_frame_reporter_).Serialize(msg->BeginNestedMessage<::protozero::Message>(32));
-  }
-
-  // Field 39: chrome_application_state_info
-  if (_has_field_[39]) {
-    (*chrome_application_state_info_).Serialize(msg->BeginNestedMessage<::protozero::Message>(39));
-  }
-
-  // Field 40: chrome_renderer_scheduler_state
-  if (_has_field_[40]) {
-    (*chrome_renderer_scheduler_state_).Serialize(msg->BeginNestedMessage<::protozero::Message>(40));
-  }
-
-  // Field 41: chrome_window_handle_event_info
-  if (_has_field_[41]) {
-    (*chrome_window_handle_event_info_).Serialize(msg->BeginNestedMessage<::protozero::Message>(41));
-  }
-
-  // Field 43: chrome_content_settings_event_info
-  if (_has_field_[43]) {
-    (*chrome_content_settings_event_info_).Serialize(msg->BeginNestedMessage<::protozero::Message>(43));
-  }
-
-  // Field 33: source_location
-  if (_has_field_[33]) {
-    (*source_location_).Serialize(msg->BeginNestedMessage<::protozero::Message>(33));
-  }
-
-  // Field 34: source_location_iid
-  if (_has_field_[34]) {
-    msg->AppendVarInt(34, source_location_iid_);
-  }
-
-  // Field 35: chrome_message_pump
-  if (_has_field_[35]) {
-    (*chrome_message_pump_).Serialize(msg->BeginNestedMessage<::protozero::Message>(35));
-  }
-
-  // Field 38: chrome_mojo_event_info
-  if (_has_field_[38]) {
-    (*chrome_mojo_event_info_).Serialize(msg->BeginNestedMessage<::protozero::Message>(38));
-  }
-
-  // Field 1: timestamp_delta_us
-  if (_has_field_[1]) {
-    msg->AppendVarInt(1, timestamp_delta_us_);
-  }
-
-  // Field 16: timestamp_absolute_us
-  if (_has_field_[16]) {
-    msg->AppendVarInt(16, timestamp_absolute_us_);
-  }
-
-  // Field 2: thread_time_delta_us
-  if (_has_field_[2]) {
-    msg->AppendVarInt(2, thread_time_delta_us_);
-  }
-
-  // Field 17: thread_time_absolute_us
-  if (_has_field_[17]) {
-    msg->AppendVarInt(17, thread_time_absolute_us_);
-  }
-
-  // Field 8: thread_instruction_count_delta
-  if (_has_field_[8]) {
-    msg->AppendVarInt(8, thread_instruction_count_delta_);
-  }
-
-  // Field 20: thread_instruction_count_absolute
-  if (_has_field_[20]) {
-    msg->AppendVarInt(20, thread_instruction_count_absolute_);
-  }
-
-  // Field 6: legacy_event
-  if (_has_field_[6]) {
-    (*legacy_event_).Serialize(msg->BeginNestedMessage<::protozero::Message>(6));
-  }
-
-  msg->AppendRawProtoBytes(unknown_fields_.data(), unknown_fields_.size());
-}
-
-
-TrackEvent_LegacyEvent::TrackEvent_LegacyEvent() = default;
-TrackEvent_LegacyEvent::~TrackEvent_LegacyEvent() = default;
-TrackEvent_LegacyEvent::TrackEvent_LegacyEvent(const TrackEvent_LegacyEvent&) = default;
-TrackEvent_LegacyEvent& TrackEvent_LegacyEvent::operator=(const TrackEvent_LegacyEvent&) = default;
-TrackEvent_LegacyEvent::TrackEvent_LegacyEvent(TrackEvent_LegacyEvent&&) noexcept = default;
-TrackEvent_LegacyEvent& TrackEvent_LegacyEvent::operator=(TrackEvent_LegacyEvent&&) = default;
-
-bool TrackEvent_LegacyEvent::operator==(const TrackEvent_LegacyEvent& other) const {
-  return unknown_fields_ == other.unknown_fields_
-   && name_iid_ == other.name_iid_
-   && phase_ == other.phase_
-   && duration_us_ == other.duration_us_
-   && thread_duration_us_ == other.thread_duration_us_
-   && thread_instruction_delta_ == other.thread_instruction_delta_
-   && unscoped_id_ == other.unscoped_id_
-   && local_id_ == other.local_id_
-   && global_id_ == other.global_id_
-   && id_scope_ == other.id_scope_
-   && use_async_tts_ == other.use_async_tts_
-   && bind_id_ == other.bind_id_
-   && bind_to_enclosing_ == other.bind_to_enclosing_
-   && flow_direction_ == other.flow_direction_
-   && instant_event_scope_ == other.instant_event_scope_
-   && pid_override_ == other.pid_override_
-   && tid_override_ == other.tid_override_;
-}
-
-bool TrackEvent_LegacyEvent::ParseFromArray(const void* raw, size_t size) {
-  unknown_fields_.clear();
-  bool packed_error = false;
-
-  ::protozero::ProtoDecoder dec(raw, size);
-  for (auto field = dec.ReadField(); field.valid(); field = dec.ReadField()) {
-    if (field.id() < _has_field_.size()) {
-      _has_field_.set(field.id());
-    }
-    switch (field.id()) {
-      case 1 /* name_iid */:
-        field.get(&name_iid_);
-        break;
-      case 2 /* phase */:
-        field.get(&phase_);
-        break;
-      case 3 /* duration_us */:
-        field.get(&duration_us_);
-        break;
-      case 4 /* thread_duration_us */:
-        field.get(&thread_duration_us_);
-        break;
-      case 15 /* thread_instruction_delta */:
-        field.get(&thread_instruction_delta_);
-        break;
-      case 6 /* unscoped_id */:
-        field.get(&unscoped_id_);
-        break;
-      case 10 /* local_id */:
-        field.get(&local_id_);
-        break;
-      case 11 /* global_id */:
-        field.get(&global_id_);
-        break;
-      case 7 /* id_scope */:
-        field.get(&id_scope_);
-        break;
-      case 9 /* use_async_tts */:
-        field.get(&use_async_tts_);
-        break;
-      case 8 /* bind_id */:
-        field.get(&bind_id_);
-        break;
-      case 12 /* bind_to_enclosing */:
-        field.get(&bind_to_enclosing_);
-        break;
-      case 13 /* flow_direction */:
-        field.get(&flow_direction_);
-        break;
-      case 14 /* instant_event_scope */:
-        field.get(&instant_event_scope_);
-        break;
-      case 18 /* pid_override */:
-        field.get(&pid_override_);
-        break;
-      case 19 /* tid_override */:
-        field.get(&tid_override_);
-        break;
-      default:
-        field.SerializeAndAppendTo(&unknown_fields_);
-        break;
-    }
-  }
-  return !packed_error && !dec.bytes_left();
-}
-
-std::string TrackEvent_LegacyEvent::SerializeAsString() const {
-  ::protozero::HeapBuffered<::protozero::Message> msg;
-  Serialize(msg.get());
-  return msg.SerializeAsString();
-}
-
-std::vector<uint8_t> TrackEvent_LegacyEvent::SerializeAsArray() const {
-  ::protozero::HeapBuffered<::protozero::Message> msg;
-  Serialize(msg.get());
-  return msg.SerializeAsArray();
-}
-
-void TrackEvent_LegacyEvent::Serialize(::protozero::Message* msg) const {
-  // Field 1: name_iid
-  if (_has_field_[1]) {
-    msg->AppendVarInt(1, name_iid_);
-  }
-
-  // Field 2: phase
-  if (_has_field_[2]) {
-    msg->AppendVarInt(2, phase_);
-  }
-
-  // Field 3: duration_us
-  if (_has_field_[3]) {
-    msg->AppendVarInt(3, duration_us_);
-  }
-
-  // Field 4: thread_duration_us
-  if (_has_field_[4]) {
-    msg->AppendVarInt(4, thread_duration_us_);
-  }
-
-  // Field 15: thread_instruction_delta
-  if (_has_field_[15]) {
-    msg->AppendVarInt(15, thread_instruction_delta_);
-  }
-
-  // Field 6: unscoped_id
-  if (_has_field_[6]) {
-    msg->AppendVarInt(6, unscoped_id_);
-  }
-
-  // Field 10: local_id
-  if (_has_field_[10]) {
-    msg->AppendVarInt(10, local_id_);
-  }
-
-  // Field 11: global_id
-  if (_has_field_[11]) {
-    msg->AppendVarInt(11, global_id_);
-  }
-
-  // Field 7: id_scope
-  if (_has_field_[7]) {
-    msg->AppendString(7, id_scope_);
-  }
-
-  // Field 9: use_async_tts
-  if (_has_field_[9]) {
-    msg->AppendTinyVarInt(9, use_async_tts_);
-  }
-
-  // Field 8: bind_id
-  if (_has_field_[8]) {
-    msg->AppendVarInt(8, bind_id_);
-  }
-
-  // Field 12: bind_to_enclosing
-  if (_has_field_[12]) {
-    msg->AppendTinyVarInt(12, bind_to_enclosing_);
-  }
-
-  // Field 13: flow_direction
-  if (_has_field_[13]) {
-    msg->AppendVarInt(13, flow_direction_);
-  }
-
-  // Field 14: instant_event_scope
-  if (_has_field_[14]) {
-    msg->AppendVarInt(14, instant_event_scope_);
-  }
-
-  // Field 18: pid_override
-  if (_has_field_[18]) {
-    msg->AppendVarInt(18, pid_override_);
-  }
-
-  // Field 19: tid_override
-  if (_has_field_[19]) {
-    msg->AppendVarInt(19, tid_override_);
-  }
-
-  msg->AppendRawProtoBytes(unknown_fields_.data(), unknown_fields_.size());
-}
-
-}  // namespace perfetto
-}  // namespace protos
-}  // namespace gen
-#if defined(__GNUC__) || defined(__clang__)
-#pragma GCC diagnostic pop
-#endif
-// gen_amalgamated begin source: gen/protos/perfetto/config/android/android_log_config.pbzero.cc
-// Intentionally empty (crbug.com/998165)
-// gen_amalgamated begin source: gen/protos/perfetto/config/android/android_polled_state_config.pbzero.cc
-// Intentionally empty (crbug.com/998165)
-// gen_amalgamated begin source: gen/protos/perfetto/config/android/packages_list_config.pbzero.cc
-// Intentionally empty (crbug.com/998165)
-// gen_amalgamated begin source: gen/protos/perfetto/config/ftrace/ftrace_config.pbzero.cc
-// Intentionally empty (crbug.com/998165)
-// gen_amalgamated begin source: gen/protos/perfetto/config/gpu/gpu_counter_config.pbzero.cc
-// Intentionally empty (crbug.com/998165)
-// gen_amalgamated begin source: gen/protos/perfetto/config/gpu/vulkan_memory_config.pbzero.cc
-// Intentionally empty (crbug.com/998165)
-// gen_amalgamated begin source: gen/protos/perfetto/config/inode_file/inode_file_config.pbzero.cc
-// Intentionally empty (crbug.com/998165)
-// gen_amalgamated begin source: gen/protos/perfetto/config/interceptors/console_config.pbzero.cc
-// Intentionally empty (crbug.com/998165)
-// gen_amalgamated begin source: gen/protos/perfetto/config/power/android_power_config.pbzero.cc
-// Intentionally empty (crbug.com/998165)
-// gen_amalgamated begin source: gen/protos/perfetto/config/process_stats/process_stats_config.pbzero.cc
-// Intentionally empty (crbug.com/998165)
-// gen_amalgamated begin source: gen/protos/perfetto/config/profiling/heapprofd_config.pbzero.cc
-// Intentionally empty (crbug.com/998165)
-// gen_amalgamated begin source: gen/protos/perfetto/config/profiling/java_hprof_config.pbzero.cc
-// Intentionally empty (crbug.com/998165)
-// gen_amalgamated begin source: gen/protos/perfetto/config/profiling/perf_event_config.pbzero.cc
-// Intentionally empty (crbug.com/998165)
-// gen_amalgamated begin source: gen/protos/perfetto/config/sys_stats/sys_stats_config.pbzero.cc
-// Intentionally empty (crbug.com/998165)
-// gen_amalgamated begin source: gen/protos/perfetto/config/track_event/track_event_config.pbzero.cc
-// Intentionally empty (crbug.com/998165)
-// gen_amalgamated begin source: gen/protos/perfetto/config/chrome/chrome_config.pbzero.cc
-// Intentionally empty (crbug.com/998165)
-// gen_amalgamated begin source: gen/protos/perfetto/config/data_source_config.pbzero.cc
-// Intentionally empty (crbug.com/998165)
-// gen_amalgamated begin source: gen/protos/perfetto/config/interceptor_config.pbzero.cc
-// Intentionally empty (crbug.com/998165)
-// gen_amalgamated begin source: gen/protos/perfetto/config/stress_test_config.pbzero.cc
-// Intentionally empty (crbug.com/998165)
-// gen_amalgamated begin source: gen/protos/perfetto/config/test_config.pbzero.cc
-// Intentionally empty (crbug.com/998165)
-// gen_amalgamated begin source: gen/protos/perfetto/config/trace_config.pbzero.cc
-// Intentionally empty (crbug.com/998165)
-// gen_amalgamated begin source: gen/protos/perfetto/trace/clock_snapshot.pbzero.cc
-// Intentionally empty (crbug.com/998165)
-// gen_amalgamated begin source: gen/protos/perfetto/trace/trigger.pbzero.cc
-// Intentionally empty (crbug.com/998165)
-// gen_amalgamated begin source: gen/protos/perfetto/trace/system_info.pbzero.cc
-// Intentionally empty (crbug.com/998165)
-// gen_amalgamated begin source: gen/protos/perfetto/trace/android/android_log.pbzero.cc
-// Intentionally empty (crbug.com/998165)
-// gen_amalgamated begin source: gen/protos/perfetto/trace/android/frame_timeline_event.pbzero.cc
-// Intentionally empty (crbug.com/998165)
-// gen_amalgamated begin source: gen/protos/perfetto/trace/android/gpu_mem_event.pbzero.cc
-// Intentionally empty (crbug.com/998165)
-// gen_amalgamated begin source: gen/protos/perfetto/trace/android/graphics_frame_event.pbzero.cc
-// Intentionally empty (crbug.com/998165)
-// gen_amalgamated begin source: gen/protos/perfetto/trace/android/initial_display_state.pbzero.cc
-// Intentionally empty (crbug.com/998165)
-// gen_amalgamated begin source: gen/protos/perfetto/trace/android/packages_list.pbzero.cc
-// Intentionally empty (crbug.com/998165)
-// gen_amalgamated begin source: gen/protos/perfetto/trace/chrome/chrome_benchmark_metadata.pbzero.cc
-// Intentionally empty (crbug.com/998165)
-// gen_amalgamated begin source: gen/protos/perfetto/trace/chrome/chrome_metadata.pbzero.cc
-// Intentionally empty (crbug.com/998165)
-// gen_amalgamated begin source: gen/protos/perfetto/trace/chrome/chrome_trace_event.pbzero.cc
-// Intentionally empty (crbug.com/998165)
-// gen_amalgamated begin source: gen/protos/perfetto/trace/filesystem/inode_file_map.pbzero.cc
-// Intentionally empty (crbug.com/998165)
-// gen_amalgamated begin source: gen/protos/perfetto/trace/ftrace/ftrace_event.pbzero.cc
-// Intentionally empty (crbug.com/998165)
-// gen_amalgamated begin source: gen/protos/perfetto/trace/ftrace/ftrace_event_bundle.pbzero.cc
-// Intentionally empty (crbug.com/998165)
-// gen_amalgamated begin source: gen/protos/perfetto/trace/ftrace/ftrace_stats.pbzero.cc
-// Intentionally empty (crbug.com/998165)
-// gen_amalgamated begin source: gen/protos/perfetto/trace/ftrace/test_bundle_wrapper.pbzero.cc
-// Intentionally empty (crbug.com/998165)
-// gen_amalgamated begin source: gen/protos/perfetto/trace/ftrace/generic.pbzero.cc
-// Intentionally empty (crbug.com/998165)
-// gen_amalgamated begin source: gen/protos/perfetto/trace/ftrace/binder.pbzero.cc
-// Intentionally empty (crbug.com/998165)
-// gen_amalgamated begin source: gen/protos/perfetto/trace/ftrace/block.pbzero.cc
-// Intentionally empty (crbug.com/998165)
-// gen_amalgamated begin source: gen/protos/perfetto/trace/ftrace/cgroup.pbzero.cc
-// Intentionally empty (crbug.com/998165)
-// gen_amalgamated begin source: gen/protos/perfetto/trace/ftrace/clk.pbzero.cc
-// Intentionally empty (crbug.com/998165)
-// gen_amalgamated begin source: gen/protos/perfetto/trace/ftrace/compaction.pbzero.cc
-// Intentionally empty (crbug.com/998165)
-// gen_amalgamated begin source: gen/protos/perfetto/trace/ftrace/cpuhp.pbzero.cc
-// Intentionally empty (crbug.com/998165)
-// gen_amalgamated begin source: gen/protos/perfetto/trace/ftrace/dmabuf_heap.pbzero.cc
-// Intentionally empty (crbug.com/998165)
-// gen_amalgamated begin source: gen/protos/perfetto/trace/ftrace/dpu.pbzero.cc
-// Intentionally empty (crbug.com/998165)
-// gen_amalgamated begin source: gen/protos/perfetto/trace/ftrace/ext4.pbzero.cc
-// Intentionally empty (crbug.com/998165)
-// gen_amalgamated begin source: gen/protos/perfetto/trace/ftrace/f2fs.pbzero.cc
-// Intentionally empty (crbug.com/998165)
-// gen_amalgamated begin source: gen/protos/perfetto/trace/ftrace/fastrpc.pbzero.cc
-// Intentionally empty (crbug.com/998165)
-// gen_amalgamated begin source: gen/protos/perfetto/trace/ftrace/fence.pbzero.cc
-// Intentionally empty (crbug.com/998165)
-// gen_amalgamated begin source: gen/protos/perfetto/trace/ftrace/filemap.pbzero.cc
-// Intentionally empty (crbug.com/998165)
-// gen_amalgamated begin source: gen/protos/perfetto/trace/ftrace/ftrace.pbzero.cc
-// Intentionally empty (crbug.com/998165)
-// gen_amalgamated begin source: gen/protos/perfetto/trace/ftrace/g2d.pbzero.cc
-// Intentionally empty (crbug.com/998165)
-// gen_amalgamated begin source: gen/protos/perfetto/trace/ftrace/gpu_mem.pbzero.cc
-// Intentionally empty (crbug.com/998165)
-// gen_amalgamated begin source: gen/protos/perfetto/trace/ftrace/i2c.pbzero.cc
-// Intentionally empty (crbug.com/998165)
-// gen_amalgamated begin source: gen/protos/perfetto/trace/ftrace/ion.pbzero.cc
-// Intentionally empty (crbug.com/998165)
-// gen_amalgamated begin source: gen/protos/perfetto/trace/ftrace/ipi.pbzero.cc
-// Intentionally empty (crbug.com/998165)
-// gen_amalgamated begin source: gen/protos/perfetto/trace/ftrace/irq.pbzero.cc
-// Intentionally empty (crbug.com/998165)
-// gen_amalgamated begin source: gen/protos/perfetto/trace/ftrace/kmem.pbzero.cc
-// Intentionally empty (crbug.com/998165)
-// gen_amalgamated begin source: gen/protos/perfetto/trace/ftrace/lowmemorykiller.pbzero.cc
-// Intentionally empty (crbug.com/998165)
-// gen_amalgamated begin source: gen/protos/perfetto/trace/ftrace/mali.pbzero.cc
-// Intentionally empty (crbug.com/998165)
-// gen_amalgamated begin source: gen/protos/perfetto/trace/ftrace/mdss.pbzero.cc
-// Intentionally empty (crbug.com/998165)
-// gen_amalgamated begin source: gen/protos/perfetto/trace/ftrace/mm_event.pbzero.cc
-// Intentionally empty (crbug.com/998165)
-// gen_amalgamated begin source: gen/protos/perfetto/trace/ftrace/oom.pbzero.cc
-// Intentionally empty (crbug.com/998165)
-// gen_amalgamated begin source: gen/protos/perfetto/trace/ftrace/power.pbzero.cc
-// Intentionally empty (crbug.com/998165)
-// gen_amalgamated begin source: gen/protos/perfetto/trace/ftrace/raw_syscalls.pbzero.cc
-// Intentionally empty (crbug.com/998165)
-// gen_amalgamated begin source: gen/protos/perfetto/trace/ftrace/regulator.pbzero.cc
-// Intentionally empty (crbug.com/998165)
-// gen_amalgamated begin source: gen/protos/perfetto/trace/ftrace/sched.pbzero.cc
-// Intentionally empty (crbug.com/998165)
-// gen_amalgamated begin source: gen/protos/perfetto/trace/ftrace/scm.pbzero.cc
-// Intentionally empty (crbug.com/998165)
-// gen_amalgamated begin source: gen/protos/perfetto/trace/ftrace/sde.pbzero.cc
-// Intentionally empty (crbug.com/998165)
-// gen_amalgamated begin source: gen/protos/perfetto/trace/ftrace/signal.pbzero.cc
-// Intentionally empty (crbug.com/998165)
-// gen_amalgamated begin source: gen/protos/perfetto/trace/ftrace/sync.pbzero.cc
-// Intentionally empty (crbug.com/998165)
-// gen_amalgamated begin source: gen/protos/perfetto/trace/ftrace/systrace.pbzero.cc
-// Intentionally empty (crbug.com/998165)
-// gen_amalgamated begin source: gen/protos/perfetto/trace/ftrace/task.pbzero.cc
-// Intentionally empty (crbug.com/998165)
-// gen_amalgamated begin source: gen/protos/perfetto/trace/ftrace/thermal.pbzero.cc
-// Intentionally empty (crbug.com/998165)
-// gen_amalgamated begin source: gen/protos/perfetto/trace/ftrace/vmscan.pbzero.cc
-// Intentionally empty (crbug.com/998165)
-// gen_amalgamated begin source: gen/protos/perfetto/trace/ftrace/workqueue.pbzero.cc
-// Intentionally empty (crbug.com/998165)
-// gen_amalgamated begin source: gen/protos/perfetto/trace/perfetto/perfetto_metatrace.pbzero.cc
-// Intentionally empty (crbug.com/998165)
-// gen_amalgamated begin source: gen/protos/perfetto/trace/perfetto/tracing_service_event.pbzero.cc
-// Intentionally empty (crbug.com/998165)
-// gen_amalgamated begin source: gen/protos/perfetto/trace/power/android_energy_estimation_breakdown.pbzero.cc
-// Intentionally empty (crbug.com/998165)
-// gen_amalgamated begin source: gen/protos/perfetto/trace/power/battery_counters.pbzero.cc
-// Intentionally empty (crbug.com/998165)
-// gen_amalgamated begin source: gen/protos/perfetto/trace/power/power_rails.pbzero.cc
-// Intentionally empty (crbug.com/998165)
-// gen_amalgamated begin source: gen/protos/perfetto/trace/ps/process_stats.pbzero.cc
-// Intentionally empty (crbug.com/998165)
-// gen_amalgamated begin source: gen/protos/perfetto/trace/ps/process_tree.pbzero.cc
-// Intentionally empty (crbug.com/998165)
-// gen_amalgamated begin source: gen/protos/perfetto/trace/sys_stats/sys_stats.pbzero.cc
-// Intentionally empty (crbug.com/998165)
-// gen_amalgamated begin source: gen/protos/perfetto/trace/system_info/cpu_info.pbzero.cc
-// Intentionally empty (crbug.com/998165)
-// gen_amalgamated begin source: gen/protos/perfetto/trace/trace_packet_defaults.pbzero.cc
-// Intentionally empty (crbug.com/998165)
-// gen_amalgamated begin source: gen/protos/perfetto/trace/test_event.pbzero.cc
-// Intentionally empty (crbug.com/998165)
-// gen_amalgamated begin source: gen/protos/perfetto/trace/test_extensions.pbzero.cc
-// Intentionally empty (crbug.com/998165)
-// gen_amalgamated begin source: gen/protos/perfetto/trace/trace_packet.pbzero.cc
-// Intentionally empty (crbug.com/998165)
-// gen_amalgamated begin source: gen/protos/perfetto/trace/trace.pbzero.cc
-// Intentionally empty (crbug.com/998165)
-// gen_amalgamated begin source: gen/protos/perfetto/trace/extension_descriptor.pbzero.cc
-// Intentionally empty (crbug.com/998165)
-// gen_amalgamated begin source: gen/protos/perfetto/trace/memory_graph.pbzero.cc
-// Intentionally empty (crbug.com/998165)
-// gen_amalgamated begin source: gen/protos/perfetto/trace/ui_state.pbzero.cc
-// Intentionally empty (crbug.com/998165)
-// gen_amalgamated begin source: src/tracing/trace_writer_base.cc
-/*
- * Copyright (C) 2019 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-// gen_amalgamated expanded: #include "perfetto/tracing/trace_writer_base.h"
-
-namespace perfetto {
-
-// This destructor needs to be defined in a dedicated translation unit and
-// cannot be merged together with the other ones in virtual_destructors.cc.
-// This is because trace_writer_base.h/cc  is part of a separate target
-// (src/public:common) that is linked also by other part of the codebase.
-
-TraceWriterBase::~TraceWriterBase() = default;
-
-}  // namespace perfetto
-// gen_amalgamated begin source: src/tracing/core/id_allocator.cc
-// gen_amalgamated begin header: src/tracing/core/id_allocator.h
-/*
- * Copyright (C) 2017 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef SRC_TRACING_CORE_ID_ALLOCATOR_H_
-#define SRC_TRACING_CORE_ID_ALLOCATOR_H_
-
-#include <stdint.h>
-
-#include <type_traits>
-#include <vector>
-
-namespace perfetto {
-
-// Handles assigment of IDs (int types) from a fixed-size pool.
-// Zero is not considered a valid ID.
-// The base class takes always a uint32_t and the derived class casts and checks
-// bounds at compile time. This is to avoid bloating code with different
-// instances of the main class for each size.
-class IdAllocatorGeneric {
- public:
-  // |max_id| is inclusive.
-  explicit IdAllocatorGeneric(uint32_t max_id);
-  ~IdAllocatorGeneric();
-
-  // Returns an ID in the range [1, max_id] or 0 if no more ids are available.
-  uint32_t AllocateGeneric();
-  void FreeGeneric(uint32_t);
-
-  bool IsEmpty() const;
-
- private:
-  IdAllocatorGeneric(const IdAllocatorGeneric&) = delete;
-  IdAllocatorGeneric& operator=(const IdAllocatorGeneric&) = delete;
-
-  const uint32_t max_id_;
-  uint32_t last_id_ = 0;
-  std::vector<bool> ids_;
-};
-
-template <typename T = uint32_t>
-class IdAllocator : public IdAllocatorGeneric {
- public:
-  explicit IdAllocator(T end) : IdAllocatorGeneric(end) {
-    static_assert(std::is_integral<T>::value && std::is_unsigned<T>::value,
-                  "T must be an unsigned integer");
-    static_assert(sizeof(T) <= sizeof(uint32_t), "T is too big");
-  }
-
-  T Allocate() { return static_cast<T>(AllocateGeneric()); }
-  void Free(T id) { FreeGeneric(id); }
-};
-
-}  // namespace perfetto
-
-#endif  // SRC_TRACING_CORE_ID_ALLOCATOR_H_
-/*
- * Copyright (C) 2017 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-// gen_amalgamated expanded: #include "src/tracing/core/id_allocator.h"
-
-// gen_amalgamated expanded: #include "perfetto/base/logging.h"
-
-namespace perfetto {
-
-IdAllocatorGeneric::IdAllocatorGeneric(uint32_t max_id) : max_id_(max_id) {
-  PERFETTO_DCHECK(max_id > 1);
-}
-
-IdAllocatorGeneric::~IdAllocatorGeneric() = default;
-
-uint32_t IdAllocatorGeneric::AllocateGeneric() {
-  for (uint32_t ignored = 1; ignored <= max_id_; ignored++) {
-    last_id_ = last_id_ < max_id_ ? last_id_ + 1 : 1;
-    const auto id = last_id_;
-
-    // 0 is never a valid ID. So if we are looking for |id| == N and there are
-    // N or less elements in the vector, they must necessarily be all < N.
-    // e.g. if |id| == 4 and size() == 4, the vector will contain IDs 0,1,2,3.
-    if (id >= ids_.size()) {
-      ids_.resize(id + 1);
-      ids_[id] = true;
-      return id;
-    }
-
-    if (!ids_[id]) {
-      ids_[id] = true;
-      return id;
-    }
-  }
-  return 0;
-}
-
-void IdAllocatorGeneric::FreeGeneric(uint32_t id) {
-  if (id == 0 || id >= ids_.size() || !ids_[id]) {
-    PERFETTO_DFATAL("Invalid id.");
-    return;
-  }
-  ids_[id] = false;
-}
-
-bool IdAllocatorGeneric::IsEmpty() const {
-  for (const auto id : ids_) {
-    if (id)
-      return false;
-  }
-  return true;
-}
-
-}  // namespace perfetto
-// gen_amalgamated begin source: src/tracing/core/null_trace_writer.cc
-// gen_amalgamated begin header: src/tracing/core/null_trace_writer.h
-// gen_amalgamated begin header: include/perfetto/ext/tracing/core/trace_writer.h
-// gen_amalgamated begin header: include/perfetto/ext/tracing/core/basic_types.h
-/*
- * Copyright (C) 2017 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef INCLUDE_PERFETTO_EXT_TRACING_CORE_BASIC_TYPES_H_
-#define INCLUDE_PERFETTO_EXT_TRACING_CORE_BASIC_TYPES_H_
-
-// gen_amalgamated expanded: #include "perfetto/base/build_config.h"
-
-#include <stddef.h>
-#include <stdint.h>
-#include <sys/types.h>
-
-#if PERFETTO_BUILDFLAG(PERFETTO_OS_WIN)
-using uid_t = unsigned int;
-#endif
-
-namespace perfetto {
-
-// Unique within the scope of the tracing service.
-using TracingSessionID = uint64_t;
-
-// Unique within the scope of the tracing service.
-using ProducerID = uint16_t;
-
-// Unique within the scope of the tracing service.
-using DataSourceInstanceID = uint64_t;
-
-// Unique within the scope of a Producer.
-using WriterID = uint16_t;
-
-// Unique within the scope of the tracing service.
-using FlushRequestID = uint64_t;
-
-// We need one FD per producer and we are not going to be able to keep > 64k FDs
-// open in the service.
-static constexpr ProducerID kMaxProducerID = static_cast<ProducerID>(-1);
-
-// 1024 Writers per producer seems a resonable bound. This reduces the ability
-// to memory-DoS the service by having to keep track of too many writer IDs.
-static constexpr WriterID kMaxWriterID = static_cast<WriterID>((1 << 10) - 1);
-
-// Unique within the scope of a {ProducerID, WriterID} tuple.
-using ChunkID = uint32_t;
-static constexpr ChunkID kMaxChunkID = static_cast<ChunkID>(-1);
-
-// Unique within the scope of the tracing service.
-using BufferID = uint16_t;
-
-// Target buffer ID for SharedMemoryArbiter. Values up to max uint16_t are
-// equivalent to a bound BufferID. Values above max uint16_t are reservation IDs
-// for the target buffer of a startup trace writer. Reservation IDs will be
-// translated to actual BufferIDs after they are bound by
-// SharedMemoryArbiter::BindStartupTargetBuffer().
-using MaybeUnboundBufferID = uint32_t;
-
-// Keep this in sync with SharedMemoryABI::PageHeader::target_buffer.
-static constexpr BufferID kMaxTraceBufferID = static_cast<BufferID>(-1);
-
-// Unique within the scope of a tracing session.
-using PacketSequenceID = uint32_t;
-// Used for extra packets emitted by the service, such as statistics.
-static constexpr PacketSequenceID kServicePacketSequenceID = 1;
-static constexpr PacketSequenceID kMaxPacketSequenceID =
-    static_cast<PacketSequenceID>(-1);
-
-constexpr uid_t kInvalidUid = static_cast<uid_t>(-1);
-
-constexpr uint32_t kDefaultFlushTimeoutMs = 5000;
-
-}  // namespace perfetto
-
-#endif  // INCLUDE_PERFETTO_EXT_TRACING_CORE_BASIC_TYPES_H_
-/*
- * Copyright (C) 2017 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef INCLUDE_PERFETTO_EXT_TRACING_CORE_TRACE_WRITER_H_
-#define INCLUDE_PERFETTO_EXT_TRACING_CORE_TRACE_WRITER_H_
-
-#include <functional>
-
-// gen_amalgamated expanded: #include "perfetto/base/export.h"
-// gen_amalgamated expanded: #include "perfetto/ext/tracing/core/basic_types.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/message_handle.h"
-// gen_amalgamated expanded: #include "perfetto/tracing/trace_writer_base.h"
-
-namespace perfetto {
-
-namespace protos {
-namespace pbzero {
-class TracePacket;
-}  // namespace pbzero
-}  // namespace protos
-
-// This is a single-thread write interface that allows to write protobufs
-// directly into the tracing shared buffer without making any copies.
-// It takes care of acquiring and releasing chunks from the
-// SharedMemoryArbiter and splitting protos over chunks.
-// The idea is that each data source creates one (or more) TraceWriter for each
-// thread it wants to write from. Each TraceWriter will get its own dedicated
-// chunk and will write into the shared buffer without any locking most of the
-// time. Locking will happen only when a chunk is exhausted and a new one is
-// acquired from the arbiter.
-
-// TODO: TraceWriter needs to keep the shared memory buffer alive (refcount?).
-// Otherwise if the shared memory buffer goes away (e.g. the Service crashes)
-// the TraceWriter will keep writing into unmapped memory.
-
-class PERFETTO_EXPORT TraceWriter : public TraceWriterBase {
- public:
-  using TracePacketHandle =
-      protozero::MessageHandle<protos::pbzero::TracePacket>;
-
-  TraceWriter();
-  ~TraceWriter() override;
-
-  // Returns a handle to the root proto message for the trace. The message will
-  // be finalized either by calling directly handle.Finalize() or by letting the
-  // handle go out of scope. The returned handle can be std::move()'d but cannot
-  // be used after either: (i) the TraceWriter instance is destroyed, (ii) a
-  // subsequence NewTracePacket() call is made on the same TraceWriter instance.
-  // The returned packet handle is always valid, but note that, when using
-  // BufferExhaustedPolicy::kDrop and the SMB is exhausted, it may be assigned
-  // a garbage chunk and any trace data written into it will be lost. For more
-  // details on buffer size choices: https://perfetto.dev/docs/concepts/buffers.
-  TracePacketHandle NewTracePacket() override = 0;
-
-  // Commits the data pending for the current chunk into the shared memory
-  // buffer and sends a CommitDataRequest() to the service. This can be called
-  // only if the handle returned by NewTracePacket() has been destroyed (i.e. we
-  // cannot Flush() while writing a TracePacket).
-  // Note: Flush() also happens implicitly when destroying the TraceWriter.
-  // |callback| is an optional callback. When non-null it will request the
-  // service to ACK the flush and will be invoked after the service has
-  // acknowledged it. The callback might be NEVER INVOKED if the service crashes
-  // or the IPC connection is dropped. The callback should be used only by tests
-  // and best-effort features (logging).
-  // TODO(primiano): right now the |callback| will be called on the IPC thread.
-  // This is fine in the current single-thread scenario, but long-term
-  // trace_writer_impl.cc should be smarter and post it on the right thread.
-  void Flush(std::function<void()> callback = {}) override = 0;
-
-  virtual WriterID writer_id() const = 0;
-
-  // Bytes written since creation. Is not reset when new chunks are acquired.
-  virtual uint64_t written() const override = 0;
-
- private:
-  TraceWriter(const TraceWriter&) = delete;
-  TraceWriter& operator=(const TraceWriter&) = delete;
-};
-
-}  // namespace perfetto
-
-#endif  // INCLUDE_PERFETTO_EXT_TRACING_CORE_TRACE_WRITER_H_
-/*
- * Copyright (C) 2018 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef SRC_TRACING_CORE_NULL_TRACE_WRITER_H_
-#define SRC_TRACING_CORE_NULL_TRACE_WRITER_H_
-
-// gen_amalgamated expanded: #include "perfetto/ext/tracing/core/trace_writer.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/message_handle.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/root_message.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/scattered_stream_null_delegate.h"
-
-namespace perfetto {
-
-// A specialization of TraceWriter which no-ops all the writes routing them
-// into a fixed region of memory
-// See //include/perfetto/tracing/core/trace_writer.h for docs.
-class NullTraceWriter : public TraceWriter {
- public:
-  NullTraceWriter();
-  ~NullTraceWriter() override;
-
-  // TraceWriter implementation. See documentation in trace_writer.h.
-  // TracePacketHandle is defined in trace_writer.h
-  TracePacketHandle NewTracePacket() override;
-  void Flush(std::function<void()> callback = {}) override;
-  WriterID writer_id() const override;
-  uint64_t written() const override;
-
- private:
-  NullTraceWriter(const NullTraceWriter&) = delete;
-  NullTraceWriter& operator=(const NullTraceWriter&) = delete;
-
-  protozero::ScatteredStreamWriterNullDelegate delegate_;
-  protozero::ScatteredStreamWriter stream_;
-
-  // The packet returned via NewTracePacket(). Its owned by this class,
-  // TracePacketHandle has just a pointer to it.
-  std::unique_ptr<protozero::RootMessage<protos::pbzero::TracePacket>>
-      cur_packet_;
-};
-
-}  // namespace perfetto
-
-#endif  // SRC_TRACING_CORE_NULL_TRACE_WRITER_H_
-/*
- * Copyright (C) 2018 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-// gen_amalgamated expanded: #include "src/tracing/core/null_trace_writer.h"
-
-// gen_amalgamated expanded: #include "perfetto/base/logging.h"
-// gen_amalgamated expanded: #include "perfetto/ext/base/utils.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/message.h"
-
-// gen_amalgamated expanded: #include "protos/perfetto/trace/trace_packet.pbzero.h"
-
-namespace perfetto {
-
-NullTraceWriter::NullTraceWriter() : delegate_(4096), stream_(&delegate_) {
-  cur_packet_.reset(new protozero::RootMessage<protos::pbzero::TracePacket>());
-  cur_packet_->Finalize();  // To avoid the DCHECK in NewTracePacket().
-}
-
-NullTraceWriter::~NullTraceWriter() {}
-
-void NullTraceWriter::Flush(std::function<void()> callback) {
-  // Flush() cannot be called in the middle of a TracePacket.
-  PERFETTO_CHECK(cur_packet_->is_finalized());
-
-  if (callback)
-    callback();
-}
-
-NullTraceWriter::TracePacketHandle NullTraceWriter::NewTracePacket() {
-  // If we hit this, the caller is calling NewTracePacket() without having
-  // finalized the previous packet.
-  PERFETTO_DCHECK(cur_packet_->is_finalized());
-  cur_packet_->Reset(&stream_);
-  return TraceWriter::TracePacketHandle(cur_packet_.get());
-}
-
-WriterID NullTraceWriter::writer_id() const {
-  return 0;
-}
-
-uint64_t NullTraceWriter::written() const {
-  return 0;
-}
-
-}  // namespace perfetto
-// gen_amalgamated begin source: src/tracing/core/shared_memory_abi.cc
-// gen_amalgamated begin header: include/perfetto/ext/tracing/core/shared_memory_abi.h
-/*
- * Copyright (C) 2017 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef INCLUDE_PERFETTO_EXT_TRACING_CORE_SHARED_MEMORY_ABI_H_
-#define INCLUDE_PERFETTO_EXT_TRACING_CORE_SHARED_MEMORY_ABI_H_
-
-#include <stddef.h>
-#include <stdint.h>
-
-#include <array>
-#include <atomic>
-#include <bitset>
-#include <thread>
-#include <type_traits>
-#include <utility>
-
-// gen_amalgamated expanded: #include "perfetto/base/logging.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/proto_utils.h"
-
-namespace perfetto {
-
-// This file defines the binary interface of the memory buffers shared between
-// Producer and Service. This is a long-term stable ABI and has to be backwards
-// compatible to deal with mismatching Producer and Service versions.
-//
-// Overview
-// --------
-// SMB := "Shared Memory Buffer".
-// In the most typical case of a multi-process architecture (i.e. Producer and
-// Service are hosted by different processes), a Producer means almost always
-// a "client process producing data" (almost: in some cases a process might host
-// > 1 Producer, if it links two libraries, independent of each other, that both
-// use Perfetto tracing).
-// The Service has one SMB for each Producer.
-// A producer has one or (typically) more data sources. They all share the same
-// SMB.
-// The SMB is a staging area to decouple data sources living in the Producer
-// and allow them to do non-blocking async writes.
-// The SMB is *not* the ultimate logging buffer seen by the Consumer. That one
-// is larger (~MBs) and not shared with Producers.
-// Each SMB is small, typically few KB. Its size is configurable by the producer
-// within a max limit of ~MB (see kMaxShmSize in tracing_service_impl.cc).
-// The SMB is partitioned into fixed-size Page(s). The size of the Pages are
-// determined by each Producer at connection time and cannot be changed.
-// Hence, different producers can have SMB(s) that have a different Page size
-// from each other, but the page size will be constant throughout all the
-// lifetime of the SMB.
-// Page(s) are partitioned by the Producer into variable size Chunk(s):
-//
-// +------------+      +--------------------------+
-// | Producer 1 |  <-> |      SMB 1 [~32K - 1MB]  |
-// +------------+      +--------+--------+--------+
-//                     |  Page  |  Page  |  Page  |
-//                     +--------+--------+--------+
-//                     | Chunk  |        | Chunk  |
-//                     +--------+  Chunk +--------+ <----+
-//                     | Chunk  |        | Chunk  |      |
-//                     +--------+--------+--------+      +---------------------+
-//                                                       |       Service       |
-// +------------+      +--------------------------+      +---------------------+
-// | Producer 2 |  <-> |      SMB 2 [~32K - 1MB]  |     /| large ring buffers  |
-// +------------+      +--------+--------+--------+ <--+ | (100K - several MB) |
-//                     |  Page  |  Page  |  Page  |      +---------------------+
-//                     +--------+--------+--------+
-//                     | Chunk  |        | Chunk  |
-//                     +--------+  Chunk +--------+
-//                     | Chunk  |        | Chunk  |
-//                     +--------+--------+--------+
-//
-// * Sizes of both SMB and ring buffers are purely indicative and decided at
-// configuration time by the Producer (for SMB sizes) and the Consumer (for the
-// final ring buffer size).
-
-// Page
-// ----
-// A page is a portion of the shared memory buffer and defines the granularity
-// of the interaction between the Producer and tracing Service. When scanning
-// the shared memory buffer to determine if something should be moved to the
-// central logging buffers, the Service most of the times looks at and moves
-// whole pages. Similarly, the Producer sends an IPC to invite the Service to
-// drain the shared memory buffer only when a whole page is filled.
-// Having fixed the total SMB size (hence the total memory overhead), the page
-// size is a triangular tradeoff between:
-// 1) IPC traffic: smaller pages -> more IPCs.
-// 2) Producer lock freedom: larger pages -> larger chunks -> data sources can
-//    write more data without needing to swap chunks and synchronize.
-// 3) Risk of write-starving the SMB: larger pages -> higher chance that the
-//    Service won't manage to drain them and the SMB remains full.
-// The page size, on the other side, has no implications on wasted memory due to
-// fragmentations (see Chunk below).
-// The size of the page is chosen by the Service at connection time and stays
-// fixed throughout all the lifetime of the Producer. Different producers (i.e.
-// ~ different client processes) can use different page sizes.
-// The page size must be an integer multiple of 4k (this is to allow VM page
-// stealing optimizations) and obviously has to be an integer divisor of the
-// total SMB size.
-
-// Chunk
-// -----
-// A chunk is a portion of a Page which is written and handled by a Producer.
-// A chunk contains a linear sequence of TracePacket(s) (the root proto).
-// A chunk cannot be written concurrently by two data sources. Protobufs must be
-// encoded as contiguous byte streams and cannot be interleaved. Therefore, on
-// the Producer side, a chunk is almost always owned exclusively by one thread
-// (% extremely peculiar slow-path cases).
-// Chunks are essentially single-writer single-thread lock-free arenas. Locking
-// happens only when a Chunk is full and a new one needs to be acquired.
-// Locking happens only within the scope of a Producer process. There is no
-// inter-process locking. The Producer cannot lock the Service and viceversa.
-// In the worst case, any of the two can starve the SMB, by marking all chunks
-// as either being read or written. But that has the only side effect of
-// losing the trace data.
-// The Producer can decide to partition each page into a number of limited
-// configurations (e.g., 1 page == 1 chunk, 1 page == 2 chunks and so on).
-
-// TracePacket
-// -----------
-// Is the atom of tracing. Putting aside pages and chunks a trace is merely a
-// sequence of TracePacket(s). TracePacket is the root protobuf message.
-// A TracePacket can span across several chunks (hence even across several
-// pages). A TracePacket can therefore be >> chunk size, >> page size and even
-// >> SMB size. The Chunk header carries metadata to deal with the TracePacket
-// splitting case.
-
-// Use only explicitly-sized types below. DO NOT use size_t or any architecture
-// dependent size (e.g. size_t) in the struct fields. This buffer will be read
-// and written by processes that have a different bitness in the same OS.
-// Instead it's fine to assume little-endianess. Big-endian is a dream we are
-// not currently pursuing.
-
-class SharedMemoryABI {
- public:
-  static constexpr size_t kMinPageSize = 4 * 1024;
-
-  // This is due to Chunk::size being 16 bits.
-  static constexpr size_t kMaxPageSize = 64 * 1024;
-
-  // "14" is the max number that can be encoded in a 32 bit atomic word using
-  // 2 state bits per Chunk and leaving 4 bits for the page layout.
-  // See PageLayout below.
-  static constexpr size_t kMaxChunksPerPage = 14;
-
-  // Each TracePacket in the Chunk is prefixed by a 4 bytes redundant VarInt
-  // (see proto_utils.h) stating its size.
-  static constexpr size_t kPacketHeaderSize = 4;
-
-  // TraceWriter specifies this invalid packet/fragment size to signal to the
-  // service that a packet should be discarded, because the TraceWriter couldn't
-  // write its remaining fragments (e.g. because the SMB was exhausted).
-  static constexpr size_t kPacketSizeDropPacket =
-      protozero::proto_utils::kMaxMessageLength;
-
-  // Chunk states and transitions:
-  //    kChunkFree  <----------------+
-  //         |  (Producer)           |
-  //         V                       |
-  //  kChunkBeingWritten             |
-  //         |  (Producer)           |
-  //         V                       |
-  //  kChunkComplete                 |
-  //         |  (Service)            |
-  //         V                       |
-  //  kChunkBeingRead                |
-  //        |   (Service)            |
-  //        +------------------------+
-  enum ChunkState : uint32_t {
-    // The Chunk is free. The Service shall never touch it, the Producer can
-    // acquire it and transition it into kChunkBeingWritten.
-    kChunkFree = 0,
-
-    // The Chunk is being used by the Producer and is not complete yet.
-    // The Service shall never touch kChunkBeingWritten pages.
-    kChunkBeingWritten = 1,
-
-    // The Service is moving the page into its non-shared ring buffer. The
-    // Producer shall never touch kChunkBeingRead pages.
-    kChunkBeingRead = 2,
-
-    // The Producer is done writing the page and won't touch it again. The
-    // Service can now move it to its non-shared ring buffer.
-    // kAllChunksComplete relies on this being == 3.
-    kChunkComplete = 3,
-  };
-  static constexpr const char* kChunkStateStr[] = {"Free", "BeingWritten",
-                                                   "BeingRead", "Complete"};
-
-  enum PageLayout : uint32_t {
-    // The page is fully free and has not been partitioned yet.
-    kPageNotPartitioned = 0,
-
-    // TODO(primiano): Aligning a chunk @ 16 bytes could allow to use faster
-    // intrinsics based on quad-word moves. Do the math and check what is the
-    // fragmentation loss.
-
-    // align4(X) := the largest integer N s.t. (N % 4) == 0 && N <= X.
-    // 8 == sizeof(PageHeader).
-    kPageDiv1 = 1,   // Only one chunk of size: PAGE_SIZE - 8.
-    kPageDiv2 = 2,   // Two chunks of size: align4((PAGE_SIZE - 8) / 2).
-    kPageDiv4 = 3,   // Four chunks of size: align4((PAGE_SIZE - 8) / 4).
-    kPageDiv7 = 4,   // Seven chunks of size: align4((PAGE_SIZE - 8) / 7).
-    kPageDiv14 = 5,  // Fourteen chunks of size: align4((PAGE_SIZE - 8) / 14).
-
-    // The rationale for 7 and 14 above is to maximize the page usage for the
-    // likely case of |page_size| == 4096:
-    // (((4096 - 8) / 14) % 4) == 0, while (((4096 - 8) / 16 % 4)) == 3. So
-    // Div16 would waste 3 * 16 = 48 bytes per page for chunk alignment gaps.
-
-    kPageDivReserved1 = 6,
-    kPageDivReserved2 = 7,
-    kNumPageLayouts = 8,
-  };
-
-  // Keep this consistent with the PageLayout enum above.
-  static constexpr uint32_t kNumChunksForLayout[] = {0, 1, 2, 4, 7, 14, 0, 0};
-
-  // Layout of a Page.
-  // +===================================================+
-  // | Page header [8 bytes]                             |
-  // | Tells how many chunks there are, how big they are |
-  // | and their state (free, read, write, complete).    |
-  // +===================================================+
-  // +***************************************************+
-  // | Chunk #0 header [8 bytes]                         |
-  // | Tells how many packets there are and whether the  |
-  // | whether the 1st and last ones are fragmented.     |
-  // | Also has a chunk id to reassemble fragments.    |
-  // +***************************************************+
-  // +---------------------------------------------------+
-  // | Packet #0 size [varint, up to 4 bytes]            |
-  // + - - - - - - - - - - - - - - - - - - - - - - - - - +
-  // | Packet #0 payload                                 |
-  // | A TracePacket protobuf message                    |
-  // +---------------------------------------------------+
-  //                         ...
-  // + . . . . . . . . . . . . . . . . . . . . . . . . . +
-  // |      Optional padding to maintain aligment        |
-  // + . . . . . . . . . . . . . . . . . . . . . . . . . +
-  // +---------------------------------------------------+
-  // | Packet #N size [varint, up to 4 bytes]            |
-  // + - - - - - - - - - - - - - - - - - - - - - - - - - +
-  // | Packet #N payload                                 |
-  // | A TracePacket protobuf message                    |
-  // +---------------------------------------------------+
-  //                         ...
-  // +***************************************************+
-  // | Chunk #M header [8 bytes]                         |
-  //                         ...
-
-  // Alignment applies to start offset only. The Chunk size is *not* aligned.
-  static constexpr uint32_t kChunkAlignment = 4;
-  static constexpr uint32_t kChunkShift = 2;
-  static constexpr uint32_t kChunkMask = 0x3;
-  static constexpr uint32_t kLayoutMask = 0x70000000;
-  static constexpr uint32_t kLayoutShift = 28;
-  static constexpr uint32_t kAllChunksMask = 0x0FFFFFFF;
-
-  // This assumes that kChunkComplete == 3.
-  static constexpr uint32_t kAllChunksComplete = 0x0FFFFFFF;
-  static constexpr uint32_t kAllChunksFree = 0;
-  static constexpr size_t kInvalidPageIdx = static_cast<size_t>(-1);
-
-  // There is one page header per page, at the beginning of the page.
-  struct PageHeader {
-    // |layout| bits:
-    // [31] [30:28] [27:26] ... [1:0]
-    //  |      |       |     |    |
-    //  |      |       |     |    +---------- ChunkState[0]
-    //  |      |       |     +--------------- ChunkState[12..1]
-    //  |      |       +--------------------- ChunkState[13]
-    //  |      +----------------------------- PageLayout (0 == page fully free)
-    //  +------------------------------------ Reserved for future use
-    std::atomic<uint32_t> layout;
-
-    // If we'll ever going to use this in the future it might come handy
-    // reviving the kPageBeingPartitioned logic (look in git log, it was there
-    // at some point in the past).
-    uint32_t reserved;
-  };
-
-  // There is one Chunk header per chunk (hence PageLayout per page) at the
-  // beginning of each chunk.
-  struct ChunkHeader {
-    enum Flags : uint8_t {
-      // If set, the first TracePacket in the chunk is partial and continues
-      // from |chunk_id| - 1 (within the same |writer_id|).
-      kFirstPacketContinuesFromPrevChunk = 1 << 0,
-
-      // If set, the last TracePacket in the chunk is partial and continues on
-      // |chunk_id| + 1 (within the same |writer_id|).
-      kLastPacketContinuesOnNextChunk = 1 << 1,
-
-      // If set, the last (fragmented) TracePacket in the chunk has holes (even
-      // if the chunk is marked as kChunkComplete) that need to be patched
-      // out-of-band before the chunk can be read.
-      kChunkNeedsPatching = 1 << 2,
-    };
-
-    struct Packets {
-      // Number of valid TracePacket protobuf messages contained in the chunk.
-      // Each TracePacket is prefixed by its own size. This field is
-      // monotonically updated by the Producer with release store semantic when
-      // the packet at position |count| is started. This last packet may not be
-      // considered complete until |count| is incremented for the subsequent
-      // packet or the chunk is completed.
-      uint16_t count : 10;
-      static constexpr size_t kMaxCount = (1 << 10) - 1;
-
-      // See Flags above.
-      uint16_t flags : 6;
-    };
-
-    // A monotonic counter of the chunk within the scoped of a |writer_id|.
-    // The tuple (ProducerID, WriterID, ChunkID) allows to figure out if two
-    // chunks are contiguous (and hence a trace packets spanning across them can
-    // be glued) or we had some holes due to the ring buffer wrapping.
-    // This is set only when transitioning from kChunkFree to kChunkBeingWritten
-    // and remains unchanged throughout the remaining lifetime of the chunk.
-    std::atomic<uint32_t> chunk_id;
-
-    // ID of the writer, unique within the producer.
-    // Like |chunk_id|, this is set only when transitioning from kChunkFree to
-    // kChunkBeingWritten.
-    std::atomic<uint16_t> writer_id;
-
-    // There is no ProducerID here. The service figures that out from the IPC
-    // channel, which is unspoofable.
-
-    // Updated with release-store semantics.
-    std::atomic<Packets> packets;
-  };
-
-  class Chunk {
-   public:
-    Chunk();  // Constructs an invalid chunk.
-
-    // Chunk is move-only, to document the scope of the Acquire/Release
-    // TryLock operations below.
-    Chunk(const Chunk&) = delete;
-    Chunk operator=(const Chunk&) = delete;
-    Chunk(Chunk&&) noexcept;
-    Chunk& operator=(Chunk&&);
-
-    uint8_t* begin() const { return begin_; }
-    uint8_t* end() const { return begin_ + size_; }
-
-    // Size, including Chunk header.
-    size_t size() const { return size_; }
-
-    // Begin of the first packet (or packet fragment).
-    uint8_t* payload_begin() const { return begin_ + sizeof(ChunkHeader); }
-    size_t payload_size() const {
-      PERFETTO_DCHECK(size_ >= sizeof(ChunkHeader));
-      return size_ - sizeof(ChunkHeader);
-    }
-
-    bool is_valid() const { return begin_ && size_; }
-
-    // Index of the chunk within the page [0..13] (13 comes from kPageDiv14).
-    uint8_t chunk_idx() const { return chunk_idx_; }
-
-    ChunkHeader* header() { return reinterpret_cast<ChunkHeader*>(begin_); }
-
-    uint16_t writer_id() {
-      return header()->writer_id.load(std::memory_order_relaxed);
-    }
-
-    // Returns the count of packets and the flags with acquire-load semantics.
-    std::pair<uint16_t, uint8_t> GetPacketCountAndFlags() {
-      auto packets = header()->packets.load(std::memory_order_acquire);
-      const uint16_t packets_count = packets.count;
-      const uint8_t packets_flags = packets.flags;
-      return std::make_pair(packets_count, packets_flags);
-    }
-
-    // Increases |packets.count| with release semantics (note, however, that the
-    // packet count is incremented *before* starting writing a packet). Returns
-    // the new packet count. The increment is atomic but NOT race-free (i.e. no
-    // CAS). Only the Producer is supposed to perform this increment, and it's
-    // supposed to do that in a thread-safe way (holding a lock). A Chunk cannot
-    // be shared by multiple Producer threads without locking. The packet count
-    // is cleared by TryAcquireChunk(), when passing the new header for the
-    // chunk.
-    uint16_t IncrementPacketCount() {
-      ChunkHeader* chunk_header = header();
-      auto packets = chunk_header->packets.load(std::memory_order_relaxed);
-      packets.count++;
-      chunk_header->packets.store(packets, std::memory_order_release);
-      return packets.count;
-    }
-
-    // Increases |packets.count| to the given |packet_count|, but only if
-    // |packet_count| is larger than the current value of |packets.count|.
-    // Returns the new packet count. Same atomicity guarantees as
-    // IncrementPacketCount().
-    uint16_t IncreasePacketCountTo(uint16_t packet_count) {
-      ChunkHeader* chunk_header = header();
-      auto packets = chunk_header->packets.load(std::memory_order_relaxed);
-      if (packets.count < packet_count)
-        packets.count = packet_count;
-      chunk_header->packets.store(packets, std::memory_order_release);
-      return packets.count;
-    }
-
-    // Flags are cleared by TryAcquireChunk(), by passing the new header for
-    // the chunk, or through ClearNeedsPatchingFlag.
-    void SetFlag(ChunkHeader::Flags flag) {
-      ChunkHeader* chunk_header = header();
-      auto packets = chunk_header->packets.load(std::memory_order_relaxed);
-      packets.flags |= flag;
-      chunk_header->packets.store(packets, std::memory_order_release);
-    }
-
-    // This flag can only be cleared by the producer while it is still holding
-    // on to the chunk - i.e. while the chunk is still in state
-    // ChunkState::kChunkBeingWritten and hasn't been transitioned to
-    // ChunkState::kChunkComplete. This is ok, because the service is oblivious
-    // to the needs patching flag before the chunk is released as complete.
-    void ClearNeedsPatchingFlag() {
-      ChunkHeader* chunk_header = header();
-      auto packets = chunk_header->packets.load(std::memory_order_relaxed);
-      packets.flags &= ~ChunkHeader::kChunkNeedsPatching;
-      chunk_header->packets.store(packets, std::memory_order_release);
-    }
-
-   private:
-    friend class SharedMemoryABI;
-    Chunk(uint8_t* begin, uint16_t size, uint8_t chunk_idx);
-
-    // Don't add extra fields, keep the move operator fast.
-    uint8_t* begin_ = nullptr;
-    uint16_t size_ = 0;
-    uint8_t chunk_idx_ = 0;
-  };
-
-  // Construct an instance from an existing shared memory buffer.
-  SharedMemoryABI(uint8_t* start, size_t size, size_t page_size);
-  SharedMemoryABI();
-
-  void Initialize(uint8_t* start, size_t size, size_t page_size);
-
-  uint8_t* start() const { return start_; }
-  uint8_t* end() const { return start_ + size_; }
-  size_t size() const { return size_; }
-  size_t page_size() const { return page_size_; }
-  size_t num_pages() const { return num_pages_; }
-  bool is_valid() { return num_pages() > 0; }
-
-  uint8_t* page_start(size_t page_idx) {
-    PERFETTO_DCHECK(page_idx < num_pages_);
-    return start_ + page_size_ * page_idx;
-  }
-
-  PageHeader* page_header(size_t page_idx) {
-    return reinterpret_cast<PageHeader*>(page_start(page_idx));
-  }
-
-  // Returns true if the page is fully clear and has not been partitioned yet.
-  // The state of the page can change at any point after this returns (or even
-  // before). The Producer should use this only as a hint to decide out whether
-  // it should TryPartitionPage() or acquire an individual chunk.
-  bool is_page_free(size_t page_idx) {
-    return page_header(page_idx)->layout.load(std::memory_order_relaxed) == 0;
-  }
-
-  // Returns true if all chunks in the page are kChunkComplete. As above, this
-  // is advisory only. The Service is supposed to use this only to decide
-  // whether to TryAcquireAllChunksForReading() or not.
-  bool is_page_complete(size_t page_idx) {
-    auto layout = page_header(page_idx)->layout.load(std::memory_order_relaxed);
-    const uint32_t num_chunks = GetNumChunksForLayout(layout);
-    if (num_chunks == 0)
-      return false;  // Non partitioned pages cannot be complete.
-    return (layout & kAllChunksMask) ==
-           (kAllChunksComplete & ((1 << (num_chunks * kChunkShift)) - 1));
-  }
-
-  // For testing / debugging only.
-  std::string page_header_dbg(size_t page_idx) {
-    uint32_t x = page_header(page_idx)->layout.load(std::memory_order_relaxed);
-    return std::bitset<32>(x).to_string();
-  }
-
-  // Returns the page layout, which is a bitmap that specifies the chunking
-  // layout of the page and each chunk's current state. Reads with an
-  // acquire-load semantic to ensure a producer's writes corresponding to an
-  // update of the layout (e.g. clearing a chunk's header) are observed
-  // consistently.
-  uint32_t GetPageLayout(size_t page_idx) {
-    return page_header(page_idx)->layout.load(std::memory_order_acquire);
-  }
-
-  // Returns a bitmap in which each bit is set if the corresponding Chunk exists
-  // in the page (according to the page layout) and is free. If the page is not
-  // partitioned it returns 0 (as if the page had no free chunks).
-  uint32_t GetFreeChunks(size_t page_idx);
-
-  // Tries to atomically partition a page with the given |layout|. Returns true
-  // if the page was free and has been partitioned with the given |layout|,
-  // false if the page wasn't free anymore by the time we got there.
-  // If succeeds all the chunks are atomically set in the kChunkFree state.
-  bool TryPartitionPage(size_t page_idx, PageLayout layout);
-
-  // Tries to atomically mark a single chunk within the page as
-  // kChunkBeingWritten. Returns an invalid chunk if the page is not partitioned
-  // or the chunk is not in the kChunkFree state. If succeeds sets the chunk
-  // header to |header|.
-  Chunk TryAcquireChunkForWriting(size_t page_idx,
-                                  size_t chunk_idx,
-                                  const ChunkHeader* header) {
-    return TryAcquireChunk(page_idx, chunk_idx, kChunkBeingWritten, header);
-  }
-
-  // Similar to TryAcquireChunkForWriting. Fails if the chunk isn't in the
-  // kChunkComplete state.
-  Chunk TryAcquireChunkForReading(size_t page_idx, size_t chunk_idx) {
-    return TryAcquireChunk(page_idx, chunk_idx, kChunkBeingRead, nullptr);
-  }
-
-  // The caller must have successfully TryAcquireAllChunksForReading() or it
-  // needs to guarantee that the chunk is already in the kChunkBeingWritten
-  // state.
-  Chunk GetChunkUnchecked(size_t page_idx,
-                          uint32_t page_layout,
-                          size_t chunk_idx);
-
-  // Puts a chunk into the kChunkComplete state. Returns the page index.
-  size_t ReleaseChunkAsComplete(Chunk chunk) {
-    return ReleaseChunk(std::move(chunk), kChunkComplete);
-  }
-
-  // Puts a chunk into the kChunkFree state. Returns the page index.
-  size_t ReleaseChunkAsFree(Chunk chunk) {
-    return ReleaseChunk(std::move(chunk), kChunkFree);
-  }
-
-  ChunkState GetChunkState(size_t page_idx, size_t chunk_idx) {
-    PageHeader* phdr = page_header(page_idx);
-    uint32_t layout = phdr->layout.load(std::memory_order_relaxed);
-    return GetChunkStateFromLayout(layout, chunk_idx);
-  }
-
-  std::pair<size_t, size_t> GetPageAndChunkIndex(const Chunk& chunk);
-
-  uint16_t GetChunkSizeForLayout(uint32_t page_layout) const {
-    return chunk_sizes_[(page_layout & kLayoutMask) >> kLayoutShift];
-  }
-
-  static ChunkState GetChunkStateFromLayout(uint32_t page_layout,
-                                            size_t chunk_idx) {
-    return static_cast<ChunkState>((page_layout >> (chunk_idx * kChunkShift)) &
-                                   kChunkMask);
-  }
-
-  static constexpr uint32_t GetNumChunksForLayout(uint32_t page_layout) {
-    return kNumChunksForLayout[(page_layout & kLayoutMask) >> kLayoutShift];
-  }
-
-  // Returns a bitmap in which each bit is set if the corresponding Chunk exists
-  // in the page (according to the page layout) and is not free. If the page is
-  // not partitioned it returns 0 (as if the page had no used chunks). Bit N
-  // corresponds to Chunk N.
-  static uint32_t GetUsedChunks(uint32_t page_layout) {
-    const uint32_t num_chunks = GetNumChunksForLayout(page_layout);
-    uint32_t res = 0;
-    for (uint32_t i = 0; i < num_chunks; i++) {
-      res |= ((page_layout & kChunkMask) != kChunkFree) ? (1 << i) : 0;
-      page_layout >>= kChunkShift;
-    }
-    return res;
-  }
-
- private:
-  SharedMemoryABI(const SharedMemoryABI&) = delete;
-  SharedMemoryABI& operator=(const SharedMemoryABI&) = delete;
-
-  Chunk TryAcquireChunk(size_t page_idx,
-                        size_t chunk_idx,
-                        ChunkState,
-                        const ChunkHeader*);
-  size_t ReleaseChunk(Chunk chunk, ChunkState);
-
-  uint8_t* start_ = nullptr;
-  size_t size_ = 0;
-  size_t page_size_ = 0;
-  size_t num_pages_ = 0;
-  std::array<uint16_t, kNumPageLayouts> chunk_sizes_;
-};
-
-}  // namespace perfetto
-
-#endif  // INCLUDE_PERFETTO_EXT_TRACING_CORE_SHARED_MEMORY_ABI_H_
-/*
- * Copyright (C) 2017 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the
- * License. You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing,
- * software distributed under the License is distributed on an "AS
- * IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
- * express or implied. See the License for the specific language
- * governing permissions and limitations under the License.
- */
-// gen_amalgamated expanded: #include "perfetto/ext/tracing/core/shared_memory_abi.h"
-
-// gen_amalgamated expanded: #include "perfetto/base/build_config.h"
-// gen_amalgamated expanded: #include "perfetto/base/time.h"
-
-#if !PERFETTO_BUILDFLAG(PERFETTO_OS_WIN)
-#include <sys/mman.h>
-#endif
-
-// gen_amalgamated expanded: #include "perfetto/ext/base/utils.h"
-// gen_amalgamated expanded: #include "perfetto/ext/tracing/core/basic_types.h"
-
-namespace perfetto {
-
-namespace {
-
-constexpr int kRetryAttempts = 64;
-
-inline void WaitBeforeNextAttempt(int attempt) {
-  if (attempt < kRetryAttempts / 2) {
-    std::this_thread::yield();
-  } else {
-    base::SleepMicroseconds((unsigned(attempt) / 10) * 1000);
-  }
-}
-
-// Returns the largest 4-bytes aligned chunk size <= |page_size| / |divider|
-// for each divider in PageLayout.
-constexpr size_t GetChunkSize(size_t page_size, size_t divider) {
-  return ((page_size - sizeof(SharedMemoryABI::PageHeader)) / divider) & ~3UL;
-}
-
-// Initializer for the const |chunk_sizes_| array.
-std::array<uint16_t, SharedMemoryABI::kNumPageLayouts> InitChunkSizes(
-    size_t page_size) {
-  static_assert(SharedMemoryABI::kNumPageLayouts ==
-                    base::ArraySize(SharedMemoryABI::kNumChunksForLayout),
-                "kNumPageLayouts out of date");
-  std::array<uint16_t, SharedMemoryABI::kNumPageLayouts> res = {};
-  for (size_t i = 0; i < SharedMemoryABI::kNumPageLayouts; i++) {
-    size_t num_chunks = SharedMemoryABI::kNumChunksForLayout[i];
-    size_t size = num_chunks == 0 ? 0 : GetChunkSize(page_size, num_chunks);
-    PERFETTO_CHECK(size <= std::numeric_limits<uint16_t>::max());
-    res[i] = static_cast<uint16_t>(size);
-  }
-  return res;
-}
-
-inline void ClearChunkHeader(SharedMemoryABI::ChunkHeader* header) {
-  header->writer_id.store(0u, std::memory_order_relaxed);
-  header->chunk_id.store(0u, std::memory_order_relaxed);
-  header->packets.store({}, std::memory_order_release);
-}
-
-}  // namespace
-
-// static
-constexpr uint32_t SharedMemoryABI::kNumChunksForLayout[];
-constexpr const char* SharedMemoryABI::kChunkStateStr[];
-constexpr const size_t SharedMemoryABI::kInvalidPageIdx;
-constexpr const size_t SharedMemoryABI::kMinPageSize;
-constexpr const size_t SharedMemoryABI::kMaxPageSize;
-constexpr const size_t SharedMemoryABI::kPacketSizeDropPacket;
-
-SharedMemoryABI::SharedMemoryABI() = default;
-
-SharedMemoryABI::SharedMemoryABI(uint8_t* start,
-                                 size_t size,
-                                 size_t page_size) {
-  Initialize(start, size, page_size);
-}
-
-void SharedMemoryABI::Initialize(uint8_t* start,
-                                 size_t size,
-                                 size_t page_size) {
-  start_ = start;
-  size_ = size;
-  page_size_ = page_size;
-  num_pages_ = size / page_size;
-  chunk_sizes_ = InitChunkSizes(page_size);
-  static_assert(sizeof(PageHeader) == 8, "PageHeader size");
-  static_assert(sizeof(ChunkHeader) == 8, "ChunkHeader size");
-  static_assert(sizeof(ChunkHeader::chunk_id) == sizeof(ChunkID),
-                "ChunkID size");
-
-  static_assert(sizeof(ChunkHeader::Packets) == 2, "ChunkHeader::Packets size");
-  static_assert(alignof(ChunkHeader) == kChunkAlignment,
-                "ChunkHeader alignment");
-
-  // In theory std::atomic does not guarantee that the underlying type
-  // consists only of the actual atomic word. Theoretically it could have
-  // locks or other state. In practice most implementations just implement
-  // them without extra state. The code below overlays the atomic into the
-  // SMB, hence relies on this implementation detail. This should be fine
-  // pragmatically (Chrome's base makes the same assumption), but let's have a
-  // check for this.
-  static_assert(sizeof(std::atomic<uint32_t>) == sizeof(uint32_t) &&
-                    sizeof(std::atomic<uint16_t>) == sizeof(uint16_t),
-                "Incompatible STL <atomic> implementation");
-
-  // Chec that the kAllChunks(Complete,Free) are consistent with the
-  // ChunkState enum values.
-
-  // These must be zero because rely on zero-initialized memory being
-  // interpreted as "free".
-  static_assert(kChunkFree == 0 && kAllChunksFree == 0,
-                "kChunkFree/kAllChunksFree and must be 0");
-
-  static_assert((kAllChunksComplete & kChunkMask) == kChunkComplete,
-                "kAllChunksComplete out of sync with kChunkComplete");
-
-  // Check the consistency of the kMax... constants.
-  static_assert(sizeof(ChunkHeader::writer_id) == sizeof(WriterID),
-                "WriterID size");
-  ChunkHeader chunk_header{};
-  chunk_header.chunk_id.store(static_cast<uint32_t>(-1));
-  PERFETTO_CHECK(chunk_header.chunk_id.load() == kMaxChunkID);
-
-  chunk_header.writer_id.store(static_cast<uint16_t>(-1));
-  PERFETTO_CHECK(kMaxWriterID <= chunk_header.writer_id.load());
-
-  PERFETTO_CHECK(page_size >= kMinPageSize);
-  PERFETTO_CHECK(page_size <= kMaxPageSize);
-  PERFETTO_CHECK(page_size % kMinPageSize == 0);
-  PERFETTO_CHECK(reinterpret_cast<uintptr_t>(start) % kMinPageSize == 0);
-  PERFETTO_CHECK(size % page_size == 0);
-}
-
-SharedMemoryABI::Chunk SharedMemoryABI::GetChunkUnchecked(size_t page_idx,
-                                                          uint32_t page_layout,
-                                                          size_t chunk_idx) {
-  const size_t num_chunks = GetNumChunksForLayout(page_layout);
-  PERFETTO_DCHECK(chunk_idx < num_chunks);
-  // Compute the chunk virtual address and write it into |chunk|.
-  const uint16_t chunk_size = GetChunkSizeForLayout(page_layout);
-  size_t chunk_offset_in_page = sizeof(PageHeader) + chunk_idx * chunk_size;
-
-  Chunk chunk(page_start(page_idx) + chunk_offset_in_page, chunk_size,
-              static_cast<uint8_t>(chunk_idx));
-  PERFETTO_DCHECK(chunk.end() <= end());
-  return chunk;
-}
-
-SharedMemoryABI::Chunk SharedMemoryABI::TryAcquireChunk(
-    size_t page_idx,
-    size_t chunk_idx,
-    ChunkState desired_chunk_state,
-    const ChunkHeader* header) {
-  PERFETTO_DCHECK(desired_chunk_state == kChunkBeingRead ||
-                  desired_chunk_state == kChunkBeingWritten);
-  PageHeader* phdr = page_header(page_idx);
-  for (int attempt = 0; attempt < kRetryAttempts; attempt++) {
-    uint32_t layout = phdr->layout.load(std::memory_order_acquire);
-    const size_t num_chunks = GetNumChunksForLayout(layout);
-
-    // The page layout has changed (or the page is free).
-    if (chunk_idx >= num_chunks)
-      return Chunk();
-
-    // Verify that the chunk is still in a state that allows the transition to
-    // |desired_chunk_state|. The only allowed transitions are:
-    // 1. kChunkFree -> kChunkBeingWritten (Producer).
-    // 2. kChunkComplete -> kChunkBeingRead (Service).
-    ChunkState expected_chunk_state =
-        desired_chunk_state == kChunkBeingWritten ? kChunkFree : kChunkComplete;
-    auto cur_chunk_state = (layout >> (chunk_idx * kChunkShift)) & kChunkMask;
-    if (cur_chunk_state != expected_chunk_state)
-      return Chunk();
-
-    uint32_t next_layout = layout;
-    next_layout &= ~(kChunkMask << (chunk_idx * kChunkShift));
-    next_layout |= (desired_chunk_state << (chunk_idx * kChunkShift));
-    if (phdr->layout.compare_exchange_strong(layout, next_layout,
-                                             std::memory_order_acq_rel)) {
-      // Compute the chunk virtual address and write it into |chunk|.
-      Chunk chunk = GetChunkUnchecked(page_idx, layout, chunk_idx);
-      if (desired_chunk_state == kChunkBeingWritten) {
-        PERFETTO_DCHECK(header);
-        ChunkHeader* new_header = chunk.header();
-        new_header->writer_id.store(header->writer_id,
-                                    std::memory_order_relaxed);
-        new_header->chunk_id.store(header->chunk_id, std::memory_order_relaxed);
-        new_header->packets.store(header->packets, std::memory_order_release);
-      }
-      return chunk;
-    }
-    WaitBeforeNextAttempt(attempt);
-  }
-  return Chunk();  // All our attempts failed.
-}
-
-bool SharedMemoryABI::TryPartitionPage(size_t page_idx, PageLayout layout) {
-  PERFETTO_DCHECK(layout >= kPageDiv1 && layout <= kPageDiv14);
-  uint32_t expected_layout = 0;  // Free page.
-  uint32_t next_layout = (layout << kLayoutShift) & kLayoutMask;
-  PageHeader* phdr = page_header(page_idx);
-  if (!phdr->layout.compare_exchange_strong(expected_layout, next_layout,
-                                            std::memory_order_acq_rel)) {
-    return false;
-  }
-  return true;
-}
-
-uint32_t SharedMemoryABI::GetFreeChunks(size_t page_idx) {
-  uint32_t layout =
-      page_header(page_idx)->layout.load(std::memory_order_relaxed);
-  const uint32_t num_chunks = GetNumChunksForLayout(layout);
-  uint32_t res = 0;
-  for (uint32_t i = 0; i < num_chunks; i++) {
-    res |= ((layout & kChunkMask) == kChunkFree) ? (1 << i) : 0;
-    layout >>= kChunkShift;
-  }
-  return res;
-}
-
-size_t SharedMemoryABI::ReleaseChunk(Chunk chunk,
-                                     ChunkState desired_chunk_state) {
-  PERFETTO_DCHECK(desired_chunk_state == kChunkComplete ||
-                  desired_chunk_state == kChunkFree);
-
-  size_t page_idx;
-  size_t chunk_idx;
-  std::tie(page_idx, chunk_idx) = GetPageAndChunkIndex(chunk);
-
-  // Reset header fields, so that the service can identify when the chunk's
-  // header has been initialized by the producer.
-  if (desired_chunk_state == kChunkFree)
-    ClearChunkHeader(chunk.header());
-
-  for (int attempt = 0; attempt < kRetryAttempts; attempt++) {
-    PageHeader* phdr = page_header(page_idx);
-    uint32_t layout = phdr->layout.load(std::memory_order_relaxed);
-    const size_t page_chunk_size = GetChunkSizeForLayout(layout);
-
-    // TODO(primiano): this should not be a CHECK, because a malicious producer
-    // could crash us by putting the chunk in an invalid state. This should
-    // gracefully fail. Keep a CHECK until then.
-    PERFETTO_CHECK(chunk.size() == page_chunk_size);
-    const uint32_t chunk_state =
-        ((layout >> (chunk_idx * kChunkShift)) & kChunkMask);
-
-    // Verify that the chunk is still in a state that allows the transition to
-    // |desired_chunk_state|. The only allowed transitions are:
-    // 1. kChunkBeingWritten -> kChunkComplete (Producer).
-    // 2. kChunkBeingRead -> kChunkFree (Service).
-    ChunkState expected_chunk_state;
-    if (desired_chunk_state == kChunkComplete) {
-      expected_chunk_state = kChunkBeingWritten;
-    } else {
-      expected_chunk_state = kChunkBeingRead;
-    }
-
-    // TODO(primiano): should not be a CHECK (same rationale of comment above).
-    PERFETTO_CHECK(chunk_state == expected_chunk_state);
-    uint32_t next_layout = layout;
-    next_layout &= ~(kChunkMask << (chunk_idx * kChunkShift));
-    next_layout |= (desired_chunk_state << (chunk_idx * kChunkShift));
-
-    // If we are freeing a chunk and all the other chunks in the page are free
-    // we should de-partition the page and mark it as clear.
-    if ((next_layout & kAllChunksMask) == kAllChunksFree)
-      next_layout = 0;
-
-    if (phdr->layout.compare_exchange_strong(layout, next_layout,
-                                             std::memory_order_acq_rel)) {
-      return page_idx;
-    }
-    WaitBeforeNextAttempt(attempt);
-  }
-  // Too much contention on this page. Give up. This page will be left pending
-  // forever but there isn't much more we can do at this point.
-  PERFETTO_DFATAL("Too much contention on page.");
-  return kInvalidPageIdx;
-}
-
-SharedMemoryABI::Chunk::Chunk() = default;
-
-SharedMemoryABI::Chunk::Chunk(uint8_t* begin, uint16_t size, uint8_t chunk_idx)
-    : begin_(begin), size_(size), chunk_idx_(chunk_idx) {
-  PERFETTO_CHECK(reinterpret_cast<uintptr_t>(begin) % kChunkAlignment == 0);
-  PERFETTO_CHECK(size > 0);
-}
-
-SharedMemoryABI::Chunk::Chunk(Chunk&& o) noexcept {
-  *this = std::move(o);
-}
-
-SharedMemoryABI::Chunk& SharedMemoryABI::Chunk::operator=(Chunk&& o) {
-  begin_ = o.begin_;
-  size_ = o.size_;
-  chunk_idx_ = o.chunk_idx_;
-  o.begin_ = nullptr;
-  o.size_ = 0;
-  o.chunk_idx_ = 0;
-  return *this;
-}
-
-std::pair<size_t, size_t> SharedMemoryABI::GetPageAndChunkIndex(
-    const Chunk& chunk) {
-  PERFETTO_DCHECK(chunk.is_valid());
-  PERFETTO_DCHECK(chunk.begin() >= start_);
-  PERFETTO_DCHECK(chunk.end() <= start_ + size_);
-
-  // TODO(primiano): The divisions below could be avoided if we cached
-  // |page_shift_|.
-  const uintptr_t rel_addr = static_cast<uintptr_t>(chunk.begin() - start_);
-  const size_t page_idx = rel_addr / page_size_;
-  const size_t offset = rel_addr % page_size_;
-  PERFETTO_DCHECK(offset >= sizeof(PageHeader));
-  PERFETTO_DCHECK(offset % kChunkAlignment == 0);
-  PERFETTO_DCHECK((offset - sizeof(PageHeader)) % chunk.size() == 0);
-  const size_t chunk_idx = (offset - sizeof(PageHeader)) / chunk.size();
-  PERFETTO_DCHECK(chunk_idx < kMaxChunksPerPage);
-  PERFETTO_DCHECK(chunk_idx < GetNumChunksForLayout(GetPageLayout(page_idx)));
-  return std::make_pair(page_idx, chunk_idx);
-}
-
-}  // namespace perfetto
-// gen_amalgamated begin source: src/tracing/core/shared_memory_arbiter_impl.cc
-// gen_amalgamated begin header: src/tracing/core/shared_memory_arbiter_impl.h
-// gen_amalgamated begin header: include/perfetto/ext/tracing/core/shared_memory_arbiter.h
-// gen_amalgamated begin header: include/perfetto/ext/tracing/core/tracing_service.h
-// gen_amalgamated begin header: include/perfetto/ext/tracing/core/shared_memory.h
-/*
- * Copyright (C) 2017 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef INCLUDE_PERFETTO_EXT_TRACING_CORE_SHARED_MEMORY_H_
-#define INCLUDE_PERFETTO_EXT_TRACING_CORE_SHARED_MEMORY_H_
-
-#include <stddef.h>
-
-#include <memory>
-
-// gen_amalgamated expanded: #include "perfetto/base/export.h"
-// gen_amalgamated expanded: #include "perfetto/base/platform_handle.h"
-
-namespace perfetto {
-
-// An abstract interface that models the shared memory region shared between
-// Service and Producer. The concrete implementation of this is up to the
-// transport layer. This can be as simple as a malloc()-ed buffer, if both
-// Producer and Service are hosted in the same process, or some posix shared
-// memory for the out-of-process case (see src/unix_rpc).
-// Both this class and the Factory are subclassed by the transport layer, which
-// will attach platform specific fields to it (e.g., a unix file descriptor).
-class PERFETTO_EXPORT SharedMemory {
- public:
-  class PERFETTO_EXPORT Factory {
-   public:
-    virtual ~Factory();
-    virtual std::unique_ptr<SharedMemory> CreateSharedMemory(size_t) = 0;
-  };
-
-  // The transport layer is expected to tear down the resource associated to
-  // this object region when destroyed.
-  virtual ~SharedMemory();
-
-  virtual void* start() const = 0;
-  virtual size_t size() const = 0;
-};
-
-}  // namespace perfetto
-
-#endif  // INCLUDE_PERFETTO_EXT_TRACING_CORE_SHARED_MEMORY_H_
-/*
- * Copyright (C) 2017 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef INCLUDE_PERFETTO_EXT_TRACING_CORE_TRACING_SERVICE_H_
-#define INCLUDE_PERFETTO_EXT_TRACING_CORE_TRACING_SERVICE_H_
-
-#include <stdint.h>
-
-#include <functional>
-#include <memory>
-#include <vector>
-
-// gen_amalgamated expanded: #include "perfetto/base/export.h"
-// gen_amalgamated expanded: #include "perfetto/ext/base/scoped_file.h"
-// gen_amalgamated expanded: #include "perfetto/ext/tracing/core/basic_types.h"
-// gen_amalgamated expanded: #include "perfetto/ext/tracing/core/shared_memory.h"
-// gen_amalgamated expanded: #include "perfetto/tracing/buffer_exhausted_policy.h"
-// gen_amalgamated expanded: #include "perfetto/tracing/core/forward_decls.h"
-
-namespace perfetto {
-
-namespace base {
-class TaskRunner;
-}  // namespace base
-
-class Consumer;
-class Producer;
-class SharedMemoryArbiter;
-class TraceWriter;
-
-// Exposed for testing.
-std::string GetBugreportPath();
-
-// TODO: for the moment this assumes that all the calls happen on the same
-// thread/sequence. Not sure this will be the case long term in Chrome.
-
-// The API for the Producer port of the Service.
-// Subclassed by:
-// 1. The tracing_service_impl.cc business logic when returning it in response
-//    to the ConnectProducer() method.
-// 2. The transport layer (e.g., src/ipc) when the producer and
-//    the service don't talk locally but via some IPC mechanism.
-class PERFETTO_EXPORT ProducerEndpoint {
- public:
-  virtual ~ProducerEndpoint();
-
-  // Called by the Producer to (un)register data sources. Data sources are
-  // identified by their name (i.e. DataSourceDescriptor.name)
-  virtual void RegisterDataSource(const DataSourceDescriptor&) = 0;
-  virtual void UnregisterDataSource(const std::string& name) = 0;
-
-  // Associate the trace writer with the given |writer_id| with
-  // |target_buffer|. The service may use this information to retrieve and
-  // copy uncommitted chunks written by the trace writer into its associated
-  // buffer, e.g. when a producer process crashes or when a flush is
-  // necessary.
-  virtual void RegisterTraceWriter(uint32_t writer_id,
-                                   uint32_t target_buffer) = 0;
-
-  // Remove the association of the trace writer previously created via
-  // RegisterTraceWriter.
-  virtual void UnregisterTraceWriter(uint32_t writer_id) = 0;
-
-  // Called by the Producer to signal that some pages in the shared memory
-  // buffer (shared between Service and Producer) have changed.
-  // When the Producer and the Service are hosted in the same process and
-  // hence potentially live on the same task runner, This method must call
-  // TracingServiceImpl's CommitData synchronously, without any PostTask()s,
-  // if on the same thread. This is to avoid a deadlock where the Producer
-  // exhausts its SMB and stalls waiting for the service to catch up with
-  // reads, but the Service never gets to that because it lives on the same
-  // thread.
-  using CommitDataCallback = std::function<void()>;
-  virtual void CommitData(const CommitDataRequest&,
-                          CommitDataCallback callback = {}) = 0;
-
-  virtual SharedMemory* shared_memory() const = 0;
-
-  // Size of shared memory buffer pages. It's always a multiple of 4K.
-  // See shared_memory_abi.h
-  virtual size_t shared_buffer_page_size_kb() const = 0;
-
-  // Creates a trace writer, which allows to create events, handling the
-  // underying shared memory buffer and signalling to the Service. This method
-  // is thread-safe but the returned object is not. A TraceWriter should be
-  // used only from a single thread, or the caller has to handle sequencing
-  // via a mutex or equivalent. This method can only be called if
-  // TracingService::ConnectProducer was called with |in_process=true|.
-  // Args:
-  // |target_buffer| is the target buffer ID where the data produced by the
-  // writer should be stored by the tracing service. This value is passed
-  // upon creation of the data source (StartDataSource()) in the
-  // DataSourceConfig.target_buffer().
-  virtual std::unique_ptr<TraceWriter> CreateTraceWriter(
-      BufferID target_buffer,
-      BufferExhaustedPolicy buffer_exhausted_policy =
-          BufferExhaustedPolicy::kDefault) = 0;
-
-  // TODO(eseckler): Also expose CreateStartupTraceWriter() ?
-
-  // In some cases you can access the producer's SharedMemoryArbiter (for
-  // example if TracingService::ConnectProducer is called with
-  // |in_process=true|). The SharedMemoryArbiter can be used to create
-  // TraceWriters which is able to directly commit chunks. For the
-  // |in_process=true| case this can be done without going through an IPC layer.
-  virtual SharedMemoryArbiter* MaybeSharedMemoryArbiter() = 0;
-
-  // Whether the service accepted a shared memory buffer provided by the
-  // producer.
-  virtual bool IsShmemProvidedByProducer() const = 0;
-
-  // Called in response to a Producer::Flush(request_id) call after all data
-  // for the flush request has been committed.
-  virtual void NotifyFlushComplete(FlushRequestID) = 0;
-
-  // Called in response to one or more Producer::StartDataSource(),
-  // if the data source registered setting the flag
-  // DataSourceDescriptor.will_notify_on_start.
-  virtual void NotifyDataSourceStarted(DataSourceInstanceID) = 0;
-
-  // Called in response to one or more Producer::StopDataSource(),
-  // if the data source registered setting the flag
-  // DataSourceDescriptor.will_notify_on_stop.
-  virtual void NotifyDataSourceStopped(DataSourceInstanceID) = 0;
-
-  // This informs the service to activate any of these triggers if any tracing
-  // session was waiting for them.
-  virtual void ActivateTriggers(const std::vector<std::string>&) = 0;
-
-  // Emits a synchronization barrier to linearize with the service. When
-  // |callback| is invoked, the caller has the guarantee that the service has
-  // seen and processed all the requests sent by this producer prior to the
-  // Sync() call. Used mainly in tests.
-  virtual void Sync(std::function<void()> callback) = 0;
-};  // class ProducerEndpoint.
-
-// The API for the Consumer port of the Service.
-// Subclassed by:
-// 1. The tracing_service_impl.cc business logic when returning it in response
-// to
-//    the ConnectConsumer() method.
-// 2. The transport layer (e.g., src/ipc) when the consumer and
-//    the service don't talk locally but via some IPC mechanism.
-class PERFETTO_EXPORT ConsumerEndpoint {
- public:
-  virtual ~ConsumerEndpoint();
-
-  // Enables tracing with the given TraceConfig. The ScopedFile argument is
-  // used only when TraceConfig.write_into_file == true.
-  // If TraceConfig.deferred_start == true data sources are configured via
-  // SetupDataSource() but are not started until StartTracing() is called.
-  // This is to support pre-initialization and fast triggering of traces.
-  // The ScopedFile argument is used only when TraceConfig.write_into_file
-  // == true.
-  virtual void EnableTracing(const TraceConfig&,
-                             base::ScopedFile = base::ScopedFile()) = 0;
-
-  // Update the trace config of an existing tracing session; only a subset
-  // of options can be changed mid-session. Currently the only
-  // supported functionality is expanding the list of producer_name_filters()
-  // (or removing the filter entirely) for existing data sources.
-  virtual void ChangeTraceConfig(const TraceConfig&) = 0;
-
-  // Starts all data sources configured in the trace config. This is used only
-  // after calling EnableTracing() with TraceConfig.deferred_start=true.
-  // It's a no-op if called after a regular EnableTracing(), without setting
-  // deferred_start.
-  virtual void StartTracing() = 0;
-
-  virtual void DisableTracing() = 0;
-
-  // Requests all data sources to flush their data immediately and invokes the
-  // passed callback once all of them have acked the flush (in which case
-  // the callback argument |success| will be true) or |timeout_ms| are elapsed
-  // (in which case |success| will be false).
-  // If |timeout_ms| is 0 the TraceConfig's flush_timeout_ms is used, or,
-  // if that one is not set (or is set to 0), kDefaultFlushTimeoutMs (5s) is
-  // used.
-  using FlushCallback = std::function<void(bool /*success*/)>;
-  virtual void Flush(uint32_t timeout_ms, FlushCallback) = 0;
-
-  // Tracing data will be delivered invoking Consumer::OnTraceData().
-  virtual void ReadBuffers() = 0;
-
-  virtual void FreeBuffers() = 0;
-
-  // Will call OnDetach().
-  virtual void Detach(const std::string& key) = 0;
-
-  // Will call OnAttach().
-  virtual void Attach(const std::string& key) = 0;
-
-  // Will call OnTraceStats().
-  virtual void GetTraceStats() = 0;
-
-  // Start or stop observing events of selected types. |events_mask| specifies
-  // the types of events to observe in a bitmask of ObservableEvents::Type.
-  // To disable observing, pass 0.
-  // Will call OnObservableEvents() repeatedly whenever an event of an enabled
-  // ObservableEventType occurs.
-  // TODO(eseckler): Extend this to support producers & data sources.
-  virtual void ObserveEvents(uint32_t events_mask) = 0;
-
-  // Used to obtain the list of connected data sources and other info about
-  // the tracing service.
-  using QueryServiceStateCallback =
-      std::function<void(bool success, const TracingServiceState&)>;
-  virtual void QueryServiceState(QueryServiceStateCallback) = 0;
-
-  // Used for feature detection. Makes sense only when the consumer and the
-  // service talk over IPC and can be from different versions.
-  using QueryCapabilitiesCallback =
-      std::function<void(const TracingServiceCapabilities&)>;
-  virtual void QueryCapabilities(QueryCapabilitiesCallback) = 0;
-
-  // If any tracing session with TraceConfig.bugreport_score > 0 is running,
-  // this will pick the highest-score one, stop it and save it into a fixed
-  // path (See kBugreportTracePath).
-  // The callback is invoked when the file has been saved, in case of success,
-  // or whenever an error occurs.
-  // Args:
-  // - success: if true, an eligible trace was found and saved into file.
-  //            If false, either there was no eligible trace running or
-  //            something else failed (See |msg|).
-  // - msg: human readable diagnostic messages to debug failures.
-  using SaveTraceForBugreportCallback =
-      std::function<void(bool /*success*/, const std::string& /*msg*/)>;
-  virtual void SaveTraceForBugreport(SaveTraceForBugreportCallback) = 0;
-};  // class ConsumerEndpoint.
-
-// The public API of the tracing Service business logic.
-//
-// Exposed to:
-// 1. The transport layer (e.g., src/unix_rpc/unix_service_host.cc),
-//    which forwards commands received from a remote producer or consumer to
-//    the actual service implementation.
-// 2. Tests.
-//
-// Subclassed by:
-//   The service business logic in src/core/tracing_service_impl.cc.
-class PERFETTO_EXPORT TracingService {
- public:
-  using ProducerEndpoint = perfetto::ProducerEndpoint;
-  using ConsumerEndpoint = perfetto::ConsumerEndpoint;
-
-  enum class ProducerSMBScrapingMode {
-    // Use service's default setting for SMB scraping. Currently, the default
-    // mode is to disable SMB scraping, but this may change in the future.
-    kDefault,
-
-    // Enable scraping of uncommitted chunks in producers' shared memory
-    // buffers.
-    kEnabled,
-
-    // Disable scraping of uncommitted chunks in producers' shared memory
-    // buffers.
-    kDisabled
-  };
-
-  // Implemented in src/core/tracing_service_impl.cc .
-  static std::unique_ptr<TracingService> CreateInstance(
-      std::unique_ptr<SharedMemory::Factory>,
-      base::TaskRunner*);
-
-  virtual ~TracingService();
-
-  // Connects a Producer instance and obtains a ProducerEndpoint, which is
-  // essentially a 1:1 channel between one Producer and the Service.
-  //
-  // The caller has to guarantee that the passed Producer will be alive as long
-  // as the returned ProducerEndpoint is alive. Both the passed Producer and the
-  // returned ProducerEndpoint must live on the same task runner of the service,
-  // specifically:
-  // 1) The Service will call Producer::* methods on the Service's task runner.
-  // 2) The Producer should call ProducerEndpoint::* methods only on the
-  //    service's task runner, except for ProducerEndpoint::CreateTraceWriter(),
-  //    which can be called on any thread. To disconnect just destroy the
-  //    returned ProducerEndpoint object. It is safe to destroy the Producer
-  //    once the Producer::OnDisconnect() has been invoked.
-  //
-  // |uid| is the trusted user id of the producer process, used by the consumers
-  // for validating the origin of trace data. |shared_memory_size_hint_bytes|
-  // and |shared_memory_page_size_hint_bytes| are optional hints on the size of
-  // the shared memory buffer and its pages. The service can ignore the hints
-  // (e.g., if the hints are unreasonably large or other sizes were configured
-  // in a tracing session's config). |in_process| enables the ProducerEndpoint
-  // to manage its own shared memory and enables use of
-  // |ProducerEndpoint::CreateTraceWriter|.
-  //
-  // The producer can optionally provide a non-null |shm|, which the service
-  // will adopt for the connection to the producer, provided it is correctly
-  // sized. In this case, |shared_memory_page_size_hint_bytes| indicates the
-  // page size used in this SMB. The producer can use this mechanism to record
-  // tracing data to an SMB even before the tracing session is started by the
-  // service. This is used in Chrome to implement startup tracing. If the buffer
-  // is incorrectly sized, the service will discard the SMB and allocate a new
-  // one, provided to the producer via ProducerEndpoint::shared_memory() after
-  // OnTracingSetup(). To verify that the service accepted the SMB, the producer
-  // may check via ProducerEndpoint::IsShmemProvidedByProducer(). If the service
-  // accepted the SMB, the producer can then commit any data that is already in
-  // the SMB after the tracing session was started by the service via
-  // Producer::StartDataSource(). The |shm| will also be rejected when
-  // connecting to a service that is too old (pre Android-11).
-  //
-  // Can return null in the unlikely event that service has too many producers
-  // connected.
-  virtual std::unique_ptr<ProducerEndpoint> ConnectProducer(
-      Producer*,
-      uid_t uid,
-      const std::string& name,
-      size_t shared_memory_size_hint_bytes = 0,
-      bool in_process = false,
-      ProducerSMBScrapingMode smb_scraping_mode =
-          ProducerSMBScrapingMode::kDefault,
-      size_t shared_memory_page_size_hint_bytes = 0,
-      std::unique_ptr<SharedMemory> shm = nullptr,
-      const std::string& sdk_version = {}) = 0;
-
-  // Connects a Consumer instance and obtains a ConsumerEndpoint, which is
-  // essentially a 1:1 channel between one Consumer and the Service.
-  // The caller has to guarantee that the passed Consumer will be alive as long
-  // as the returned ConsumerEndpoint is alive.
-  // To disconnect just destroy the returned ConsumerEndpoint object. It is safe
-  // to destroy the Consumer once the Consumer::OnDisconnect() has been invoked.
-  virtual std::unique_ptr<ConsumerEndpoint> ConnectConsumer(Consumer*,
-                                                            uid_t) = 0;
-
-  // Enable/disable scraping of chunks in the shared memory buffer. If enabled,
-  // the service will copy uncommitted but non-empty chunks from the SMB when
-  // flushing (e.g. to handle unresponsive producers or producers unable to
-  // flush their active chunks), on producer disconnect (e.g. to recover data
-  // from crashed producers), and after disabling a tracing session (e.g. to
-  // gather data from producers that didn't stop their data sources in time).
-  //
-  // This feature is currently used by Chrome.
-  virtual void SetSMBScrapingEnabled(bool enabled) = 0;
-};
-
-}  // namespace perfetto
-
-#endif  // INCLUDE_PERFETTO_EXT_TRACING_CORE_TRACING_SERVICE_H_
-/*
- * Copyright (C) 2018 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef INCLUDE_PERFETTO_EXT_TRACING_CORE_SHARED_MEMORY_ARBITER_H_
-#define INCLUDE_PERFETTO_EXT_TRACING_CORE_SHARED_MEMORY_ARBITER_H_
-
-#include <stddef.h>
-
-#include <functional>
-#include <memory>
-#include <vector>
-
-// gen_amalgamated expanded: #include "perfetto/base/export.h"
-// gen_amalgamated expanded: #include "perfetto/ext/tracing/core/basic_types.h"
-// gen_amalgamated expanded: #include "perfetto/ext/tracing/core/tracing_service.h"
-// gen_amalgamated expanded: #include "perfetto/tracing/buffer_exhausted_policy.h"
-
-namespace perfetto {
-
-namespace base {
-class TaskRunner;
-}
-
-class SharedMemory;
-class TraceWriter;
-
-// Used by the Producer-side of the transport layer to vend TraceWriters
-// from the SharedMemory it receives from the Service-side.
-class PERFETTO_EXPORT SharedMemoryArbiter {
- public:
-  virtual ~SharedMemoryArbiter();
-
-  // Creates a new TraceWriter and assigns it a new WriterID. The WriterID is
-  // written in each chunk header owned by a given TraceWriter and is used by
-  // the Service to reconstruct TracePackets written by the same TraceWriter.
-  // Returns null impl of TraceWriter if all WriterID slots are exhausted. The
-  // writer will commit to the provided |target_buffer|. If the arbiter was
-  // created via CreateUnbound(), only BufferExhaustedPolicy::kDrop is
-  // supported.
-  virtual std::unique_ptr<TraceWriter> CreateTraceWriter(
-      BufferID target_buffer,
-      BufferExhaustedPolicy buffer_exhausted_policy =
-          BufferExhaustedPolicy::kDefault) = 0;
-
-  // Creates a TraceWriter that will commit to the target buffer with the given
-  // reservation ID (creating a new reservation for this ID if none exists yet).
-  // The buffer reservation should be bound to an actual BufferID via
-  // BindStartupTargetBuffer() once the actual BufferID is known. Only supported
-  // if the arbiter was created using CreateUnbound(), and may be called while
-  // the arbiter is unbound.
-  //
-  // While any unbound buffer reservation exists, all commits will be buffered
-  // until all reservations were bound. Thus, until all reservations are bound,
-  // the data written to the SMB will not be consumed by the service - the SMB
-  // size should be chosen with this in mind. Startup writers always use
-  // BufferExhaustedPolicy::kDrop, as we cannot feasibly stall while not
-  // flushing to the service.
-  //
-  // The |target_buffer_reservation_id| should be greater than 0 but can
-  // otherwise be freely chosen by the producer and is only used to translate
-  // packets into the actual buffer id once
-  // BindStartupTargetBuffer(reservation_id) is called. For example, Chrome uses
-  // startup tracing not only for the first, but also subsequent tracing
-  // sessions (to enable tracing in the browser process before it instructs the
-  // tracing service to start tracing asynchronously, minimizing trace data loss
-  // in the meantime), and increments the reservation ID between sessions.
-  // Similarly, if more than a single target buffer per session is required
-  // (e.g. for two different data sources), different reservation IDs should be
-  // chosen for different targets buffers.
-  virtual std::unique_ptr<TraceWriter> CreateStartupTraceWriter(
-      uint16_t target_buffer_reservation_id) = 0;
-
-  // Should only be called on unbound SharedMemoryArbiters. Binds the arbiter to
-  // the provided ProducerEndpoint and TaskRunner. Should be called only once
-  // and on the provided |TaskRunner|. Usually called by the producer (i.e., no
-  // specific data source) once it connects to the service. Both the endpoint
-  // and task runner should remain valid for the remainder of the arbiter's
-  // lifetime.
-  virtual void BindToProducerEndpoint(TracingService::ProducerEndpoint*,
-                                      base::TaskRunner*) = 0;
-
-  // Binds commits from TraceWriters created via CreateStartupTraceWriter() with
-  // the given |target_buffer_reservation_id| to |target_buffer_id|. May only be
-  // called once per |target_buffer_reservation_id|. Should be called on the
-  // arbiter's TaskRunner, and after BindToProducerEndpoint() was called.
-  // Usually, it is called by a specific data source, after it received its
-  // configuration (including the target buffer ID) from the service.
-  virtual void BindStartupTargetBuffer(uint16_t target_buffer_reservation_id,
-                                       BufferID target_buffer_id) = 0;
-
-  // Treat the reservation as resolved to an invalid buffer. Commits for this
-  // reservation will be flushed to the service ASAP. The service will free
-  // committed chunks but otherwise ignore them. The producer can call this
-  // method, for example, if connection to the tracing service failed or the
-  // session was stopped concurrently before the connection was established.
-  virtual void AbortStartupTracingForReservation(
-      uint16_t target_buffer_reservation_id) = 0;
-
-  // Notifies the service that all data for the given FlushRequestID has been
-  // committed in the shared memory buffer. Should only be called while bound.
-  virtual void NotifyFlushComplete(FlushRequestID) = 0;
-
-  // Sets the duration during which commits are batched. Args:
-  // |batch_commits_duration_ms|: The length of the period, during which commits
-  // by all trace writers are accumulated, before being sent to the service.
-  // When the period ends, all accumulated commits are flushed. On the first
-  // commit after the last flush, another delayed flush is scheduled to run in
-  // |batch_commits_duration_ms|. If an immediate flush occurs (via
-  // FlushPendingCommitDataRequests()) during a batching period, any
-  // accumulated commits up to that point will be sent to the service
-  // immediately. And when the batching period ends, the commits that occurred
-  // after the immediate flush will also be sent to the service.
-  //
-  // If the duration has already been set to a non-zero value before this method
-  // is called, and there is already a scheduled flush with the previously-set
-  // duration, the new duration will take effect after the scheduled flush
-  // occurs.
-  //
-  // If |batch_commits_duration_ms| is non-zero, batched data that hasn't been
-  // sent could be lost at the end of a tracing session. To avoid this,
-  // producers should make sure that FlushPendingCommitDataRequests is called
-  // after the last TraceWriter write and before the service has stopped
-  // listening for commits from the tracing session's data sources (i.e.
-  // data sources should stop asynchronously, see
-  // DataSourceDescriptor.will_notify_on_stop=true).
-  virtual void SetBatchCommitsDuration(uint32_t batch_commits_duration_ms) = 0;
-
-  // Called to enable direct producer-side patching of chunks that have not yet
-  // been committed to the service. The return value indicates whether direct
-  // patching was successfully enabled. It will be true if
-  // SharedMemoryArbiter::SetDirectSMBPatchingSupportedByService has been called
-  // and false otherwise.
-  virtual bool EnableDirectSMBPatching() = 0;
-
-  // When the producer and service live in separate processes, this method
-  // should be called if the producer receives an
-  // InitializeConnectionResponse.direct_smb_patching_supported set to true by
-  // the service (see producer_port.proto) .
-  //
-  // In the in-process case, the service will always support direct SMB patching
-  // and this method should always be called.
-  virtual void SetDirectSMBPatchingSupportedByService() = 0;
-
-  // Forces an immediate commit of the completed packets, without waiting for
-  // the next task or for a batching period to end. Should only be called while
-  // bound.
-  virtual void FlushPendingCommitDataRequests(
-      std::function<void()> callback = {}) = 0;
-
-  // Attempts to shut down this arbiter. This function prevents new trace
-  // writers from being created for this this arbiter, but if there are any
-  // existing trace writers, the shutdown cannot proceed and this funtion
-  // returns false. The caller should not delete the arbiter before all of its
-  // associated trace writers have been destroyed and this function returns
-  // true.
-  virtual bool TryShutdown() = 0;
-
-  // Create a bound arbiter instance. Args:
-  // |SharedMemory|: the shared memory buffer to use.
-  // |page_size|: a multiple of 4KB that defines the granularity of tracing
-  // pages. See tradeoff considerations in shared_memory_abi.h.
-  // |ProducerEndpoint|: The service's producer endpoint used e.g. to commit
-  // chunks and register trace writers.
-  // |TaskRunner|: Task runner for perfetto's main thread, which executes the
-  // OnPagesCompleteCallback and IPC calls to the |ProducerEndpoint|.
-  //
-  // Implemented in src/core/shared_memory_arbiter_impl.cc.
-  static std::unique_ptr<SharedMemoryArbiter> CreateInstance(
-      SharedMemory*,
-      size_t page_size,
-      TracingService::ProducerEndpoint*,
-      base::TaskRunner*);
-
-  // Create an unbound arbiter instance, which should later be bound to a
-  // ProducerEndpoint and TaskRunner by calling BindToProducerEndpoint(). The
-  // returned arbiter will ONLY support trace writers with
-  // BufferExhaustedPolicy::kDrop.
-  //
-  // An unbound SharedMemoryArbiter can be used to write to a producer-created
-  // SharedMemory buffer before the producer connects to the tracing service.
-  // The producer can then pass this SMB to the service when it connects (see
-  // TracingService::ConnectProducer).
-  //
-  // To trace into the SMB before the service starts the tracing session, trace
-  // writers can be obtained via CreateStartupTraceWriter() and later associated
-  // with a target buffer via BindStartupTargetBuffer(), once the target buffer
-  // is known.
-  //
-  // Implemented in src/core/shared_memory_arbiter_impl.cc. See CreateInstance()
-  // for comments about the arguments.
-  static std::unique_ptr<SharedMemoryArbiter> CreateUnboundInstance(
-      SharedMemory*,
-      size_t page_size);
-};
-
-}  // namespace perfetto
-
-#endif  // INCLUDE_PERFETTO_EXT_TRACING_CORE_SHARED_MEMORY_ARBITER_H_
-/*
- * Copyright (C) 2017 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef SRC_TRACING_CORE_SHARED_MEMORY_ARBITER_IMPL_H_
-#define SRC_TRACING_CORE_SHARED_MEMORY_ARBITER_IMPL_H_
-
-#include <stdint.h>
-
-#include <functional>
-#include <map>
-#include <memory>
-#include <mutex>
-#include <vector>
-
-// gen_amalgamated expanded: #include "perfetto/ext/base/weak_ptr.h"
-// gen_amalgamated expanded: #include "perfetto/ext/tracing/core/basic_types.h"
-// gen_amalgamated expanded: #include "perfetto/ext/tracing/core/shared_memory_abi.h"
-// gen_amalgamated expanded: #include "perfetto/ext/tracing/core/shared_memory_arbiter.h"
-// gen_amalgamated expanded: #include "perfetto/tracing/core/forward_decls.h"
-// gen_amalgamated expanded: #include "src/tracing/core/id_allocator.h"
-
-namespace perfetto {
-
-class PatchList;
-class Patch;
-class TraceWriter;
-class TraceWriterImpl;
-
-namespace base {
-class TaskRunner;
-}  // namespace base
-
-// This class handles the shared memory buffer on the producer side. It is used
-// to obtain thread-local chunks and to partition pages from several threads.
-// There is one arbiter instance per Producer.
-// This class is thread-safe and uses locks to do so. Data sources are supposed
-// to interact with this sporadically, only when they run out of space on their
-// current thread-local chunk.
-//
-// When the arbiter is created using CreateUnboundInstance(), the following
-// state transitions are possible:
-//
-//   [ !fully_bound_, !endpoint_, 0 unbound buffer reservations ]
-//       |     |
-//       |     | CreateStartupTraceWriter(buf)
-//       |     |  buffer reservations += buf
-//       |     |
-//       |     |             ----
-//       |     |            |    | CreateStartupTraceWriter(buf)
-//       |     |            |    |  buffer reservations += buf
-//       |     V            |    V
-//       |   [ !fully_bound_, !endpoint_, >=1 unbound buffer reservations ]
-//       |                                                |
-//       |                       BindToProducerEndpoint() |
-//       |                                                |
-//       | BindToProducerEndpoint()                       |
-//       |                                                V
-//       |   [ !fully_bound_, endpoint_, >=1 unbound buffer reservations ]
-//       |   A    |    A                               |     A
-//       |   |    |    |                               |     |
-//       |   |     ----                                |     |
-//       |   |    CreateStartupTraceWriter(buf)        |     |
-//       |   |     buffer reservations += buf          |     |
-//       |   |                                         |     |
-//       |   | CreateStartupTraceWriter(buf)           |     |
-//       |   |  where buf is not yet bound             |     |
-//       |   |  buffer reservations += buf             |     | (yes)
-//       |   |                                         |     |
-//       |   |        BindStartupTargetBuffer(buf, id) |-----
-//       |   |           buffer reservations -= buf    | reservations > 0?
-//       |   |                                         |
-//       |   |                                         | (no)
-//       V   |                                         V
-//       [ fully_bound_, endpoint_, 0 unbound buffer reservations ]
-//          |    A
-//          |    | CreateStartupTraceWriter(buf)
-//          |    |  where buf is already bound
-//           ----
-class SharedMemoryArbiterImpl : public SharedMemoryArbiter {
- public:
-  // See SharedMemoryArbiter::CreateInstance(). |start|, |size| define the
-  // boundaries of the shared memory buffer. ProducerEndpoint and TaskRunner may
-  // be |nullptr| if created unbound, see
-  // SharedMemoryArbiter::CreateUnboundInstance().
-  SharedMemoryArbiterImpl(void* start,
-                          size_t size,
-                          size_t page_size,
-                          TracingService::ProducerEndpoint*,
-                          base::TaskRunner*);
-
-  // Returns a new Chunk to write tracing data. Depending on the provided
-  // BufferExhaustedPolicy, this may return an invalid chunk if no valid free
-  // chunk could be found in the SMB.
-  SharedMemoryABI::Chunk GetNewChunk(const SharedMemoryABI::ChunkHeader&,
-                                     BufferExhaustedPolicy,
-                                     size_t size_hint = 0);
-
-  // Puts back a Chunk that has been completed and sends a request to the
-  // service to move it to the central tracing buffer. |target_buffer| is the
-  // absolute trace buffer ID where the service should move the chunk onto (the
-  // producer is just to copy back the same number received in the
-  // DataSourceConfig upon the StartDataSource() reques).
-  // PatchList is a pointer to the list of patches for previous chunks. The
-  // first patched entries will be removed from the patched list and sent over
-  // to the service in the same CommitData() IPC request.
-  void ReturnCompletedChunk(SharedMemoryABI::Chunk,
-                            MaybeUnboundBufferID target_buffer,
-                            PatchList*);
-
-  // Send a request to the service to apply completed patches from |patch_list|.
-  // |writer_id| is the ID of the TraceWriter that calls this method,
-  // |target_buffer| is the global trace buffer ID of its target buffer.
-  void SendPatches(WriterID writer_id,
-                   MaybeUnboundBufferID target_buffer,
-                   PatchList* patch_list);
-
-  SharedMemoryABI* shmem_abi_for_testing() { return &shmem_abi_; }
-
-  static void set_default_layout_for_testing(SharedMemoryABI::PageLayout l) {
-    default_page_layout = l;
-  }
-
-  // SharedMemoryArbiter implementation.
-  // See include/perfetto/tracing/core/shared_memory_arbiter.h for comments.
-  std::unique_ptr<TraceWriter> CreateTraceWriter(
-      BufferID target_buffer,
-      BufferExhaustedPolicy = BufferExhaustedPolicy::kDefault) override;
-  std::unique_ptr<TraceWriter> CreateStartupTraceWriter(
-      uint16_t target_buffer_reservation_id) override;
-  void BindToProducerEndpoint(TracingService::ProducerEndpoint*,
-                              base::TaskRunner*) override;
-  void BindStartupTargetBuffer(uint16_t target_buffer_reservation_id,
-                               BufferID target_buffer_id) override;
-  void AbortStartupTracingForReservation(
-      uint16_t target_buffer_reservation_id) override;
-  void NotifyFlushComplete(FlushRequestID) override;
-
-  void SetBatchCommitsDuration(uint32_t batch_commits_duration_ms) override;
-
-  bool EnableDirectSMBPatching() override;
-
-  void SetDirectSMBPatchingSupportedByService() override;
-
-  void FlushPendingCommitDataRequests(
-      std::function<void()> callback = {}) override;
-  bool TryShutdown() override;
-
-  base::TaskRunner* task_runner() const { return task_runner_; }
-  size_t page_size() const { return shmem_abi_.page_size(); }
-  size_t num_pages() const { return shmem_abi_.num_pages(); }
-
-  base::WeakPtr<SharedMemoryArbiterImpl> GetWeakPtr() const {
-    return weak_ptr_factory_.GetWeakPtr();
-  }
-
- private:
-  friend class TraceWriterImpl;
-  friend class StartupTraceWriterTest;
-  friend class SharedMemoryArbiterImplTest;
-
-  struct TargetBufferReservation {
-    bool resolved = false;
-    BufferID target_buffer = kInvalidBufferId;
-  };
-
-  // Placeholder for the actual target buffer ID of a startup target buffer
-  // reservation ID in |target_buffer_reservations_|.
-  static constexpr BufferID kInvalidBufferId = 0;
-
-  static SharedMemoryABI::PageLayout default_page_layout;
-
-  SharedMemoryArbiterImpl(const SharedMemoryArbiterImpl&) = delete;
-  SharedMemoryArbiterImpl& operator=(const SharedMemoryArbiterImpl&) = delete;
-
-  void UpdateCommitDataRequest(SharedMemoryABI::Chunk chunk,
-                               WriterID writer_id,
-                               MaybeUnboundBufferID target_buffer,
-                               PatchList* patch_list);
-
-  // Search the chunks that are being batched in |commit_data_req_| for a chunk
-  // that needs patching and that matches the provided |writer_id| and
-  // |patch.chunk_id|. If found, apply |patch| to that chunk, and if
-  // |chunk_needs_more_patching| is true, clear the needs patching flag of the
-  // chunk and mark it as complete - to allow the service to read it (and other
-  // chunks after it) during scraping. Returns true if the patch was applied,
-  // false otherwise.
-  //
-  // Note: the caller must be holding |lock_| for the duration of the call.
-  bool TryDirectPatchLocked(WriterID writer_id,
-                            const Patch& patch,
-                            bool chunk_needs_more_patching);
-  std::unique_ptr<TraceWriter> CreateTraceWriterInternal(
-      MaybeUnboundBufferID target_buffer,
-      BufferExhaustedPolicy);
-
-  // Called by the TraceWriter destructor.
-  void ReleaseWriterID(WriterID);
-
-  void BindStartupTargetBufferImpl(std::unique_lock<std::mutex> scoped_lock,
-                                   uint16_t target_buffer_reservation_id,
-                                   BufferID target_buffer_id);
-
-  // If any flush callbacks were queued up while the arbiter or any target
-  // buffer reservation was unbound, this wraps the pending callbacks into a new
-  // std::function and returns it. Otherwise returns an invalid std::function.
-  std::function<void()> TakePendingFlushCallbacksLocked();
-
-  // Replace occurrences of target buffer reservation IDs in |commit_data_req_|
-  // with their respective actual BufferIDs if they were already bound. Returns
-  // true iff all occurrences were replaced.
-  bool ReplaceCommitPlaceholderBufferIdsLocked();
-
-  // Update and return |fully_bound_| based on the arbiter's |pending_writers_|
-  // state.
-  bool UpdateFullyBoundLocked();
-
-  const bool initially_bound_;
-
-  // Only accessed on |task_runner_| after the producer endpoint was bound.
-  TracingService::ProducerEndpoint* producer_endpoint_ = nullptr;
-
-  // --- Begin lock-protected members ---
-
-  std::mutex lock_;
-
-  base::TaskRunner* task_runner_ = nullptr;
-  SharedMemoryABI shmem_abi_;
-  size_t page_idx_ = 0;
-  std::unique_ptr<CommitDataRequest> commit_data_req_;
-  size_t bytes_pending_commit_ = 0;  // SUM(chunk.size() : commit_data_req_).
-  IdAllocator<WriterID> active_writer_ids_;
-  bool did_shutdown_ = false;
-
-  // Whether the arbiter itself and all startup target buffer reservations are
-  // bound. Note that this can become false again later if a new target buffer
-  // reservation is created by calling CreateStartupTraceWriter() with a new
-  // reservation id.
-  bool fully_bound_;
-
-  // IDs of writers and their assigned target buffers that should be registered
-  // with the service after the arbiter and/or their startup target buffer is
-  // bound.
-  std::map<WriterID, MaybeUnboundBufferID> pending_writers_;
-
-  // Callbacks for flush requests issued while the arbiter or a target buffer
-  // reservation was unbound.
-  std::vector<std::function<void()>> pending_flush_callbacks_;
-
-  // See SharedMemoryArbiter::SetBatchCommitsDuration.
-  uint32_t batch_commits_duration_ms_ = 0;
-
-  // See SharedMemoryArbiter::EnableDirectSMBPatching.
-  bool direct_patching_enabled_ = false;
-
-  // See SharedMemoryArbiter::SetDirectSMBPatchingSupportedByService.
-  bool direct_patching_supported_by_service_ = false;
-
-  // Indicates whether we have already scheduled a delayed flush for the
-  // purposes of batching. Set to true at the beginning of a batching period and
-  // cleared at the end of the period. Immediate flushes that happen during a
-  // batching period will empty the |commit_data_req| (triggering an immediate
-  // IPC to the service), but will not clear this flag and the
-  // previously-scheduled delayed flush will still occur at the end of the
-  // batching period.
-  bool delayed_flush_scheduled_ = false;
-
-  // Stores target buffer reservations for writers created via
-  // CreateStartupTraceWriter(). A bound reservation sets
-  // TargetBufferReservation::resolved to true and is associated with the actual
-  // BufferID supplied in BindStartupTargetBuffer().
-  //
-  // TODO(eseckler): Clean up entries from this map. This would probably require
-  // a method in SharedMemoryArbiter that allows a producer to invalidate a
-  // reservation ID.
-  std::map<MaybeUnboundBufferID, TargetBufferReservation>
-      target_buffer_reservations_;
-
-  // --- End lock-protected members ---
-
-  // Keep at the end.
-  base::WeakPtrFactory<SharedMemoryArbiterImpl> weak_ptr_factory_;
-};
-
-}  // namespace perfetto
-
-#endif  // SRC_TRACING_CORE_SHARED_MEMORY_ARBITER_IMPL_H_
-// gen_amalgamated begin header: include/perfetto/ext/tracing/core/commit_data_request.h
-/*
- * Copyright (C) 2017 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef INCLUDE_PERFETTO_EXT_TRACING_CORE_COMMIT_DATA_REQUEST_H_
-#define INCLUDE_PERFETTO_EXT_TRACING_CORE_COMMIT_DATA_REQUEST_H_
-
-// Creates the aliases in the ::perfetto namespace, doing things like:
-// using ::perfetto::Foo = ::perfetto::protos::gen::Foo.
-// See comments in forward_decls.h for the historical reasons of this
-// indirection layer.
-// gen_amalgamated expanded: #include "perfetto/tracing/core/forward_decls.h"
-
-// gen_amalgamated expanded: #include "protos/perfetto/common/commit_data_request.gen.h"
-
-#endif  // INCLUDE_PERFETTO_EXT_TRACING_CORE_COMMIT_DATA_REQUEST_H_
-// gen_amalgamated begin header: src/tracing/core/trace_writer_impl.h
-// gen_amalgamated begin header: src/tracing/core/patch_list.h
-/*
- * Copyright (C) 2018 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef SRC_TRACING_CORE_PATCH_LIST_H_
-#define SRC_TRACING_CORE_PATCH_LIST_H_
-
-#include <array>
-#include <forward_list>
-
-// gen_amalgamated expanded: #include "perfetto/base/logging.h"
-// gen_amalgamated expanded: #include "perfetto/ext/tracing/core/basic_types.h"
-// gen_amalgamated expanded: #include "perfetto/ext/tracing/core/shared_memory_abi.h"
-
-namespace perfetto {
-
-// Used to handle the backfilling of the headers (the |size_field|) of nested
-// messages when a proto is fragmented over several chunks. These patches are
-// sent out-of-band to the tracing service, after having returned the initial
-// chunks of the fragment.
-// TODO(crbug.com/904477): Re-disable the move constructors when all usses of
-// this class have been fixed.
-class Patch {
- public:
-  using PatchContent = std::array<uint8_t, SharedMemoryABI::kPacketHeaderSize>;
-  Patch(ChunkID c, uint16_t o) : chunk_id(c), offset(o) {}
-  Patch(const Patch&) = default;  // For tests.
-
-  const ChunkID chunk_id;
-  const uint16_t offset;
-  PatchContent size_field{};
-
-  // |size_field| contains a varint. Any varint must start with != 0. Even in
-  // the case we want to encode a size == 0, protozero will write a redundant
-  // varint for that, that is [0x80, 0x80, 0x80, 0x00]. So the first byte is 0
-  // iff we never wrote any varint into that.
-  bool is_patched() const { return size_field[0] != 0; }
-
-  // For tests.
-  bool operator==(const Patch& o) const {
-    return chunk_id == o.chunk_id && offset == o.offset &&
-           size_field == o.size_field;
-  }
-
- private:
-  Patch& operator=(const Patch&) = delete;
-};
-
-// Note: the protozero::Message(s) will take pointers to the |size_field| of
-// these entries. This container must guarantee that the Patch objects are never
-// moved around (i.e. cannot be a vector because of reallocations can change
-// addresses of pre-existing entries).
-class PatchList {
- public:
-  using ListType = std::forward_list<Patch>;
-  using value_type = ListType::value_type;          // For gtest.
-  using const_iterator = ListType::const_iterator;  // For gtest.
-
-  PatchList() : last_(list_.before_begin()) {}
-
-  Patch* emplace_back(ChunkID chunk_id, uint16_t offset) {
-    PERFETTO_DCHECK(empty() || last_->chunk_id != chunk_id ||
-                    offset >= last_->offset + sizeof(Patch::PatchContent));
-    last_ = list_.emplace_after(last_, chunk_id, offset);
-    return &*last_;
-  }
-
-  void pop_front() {
-    PERFETTO_DCHECK(!list_.empty());
-    list_.pop_front();
-    if (empty())
-      last_ = list_.before_begin();
-  }
-
-  const Patch& front() const {
-    PERFETTO_DCHECK(!list_.empty());
-    return list_.front();
-  }
-
-  const Patch& back() const {
-    PERFETTO_DCHECK(!list_.empty());
-    return *last_;
-  }
-
-  ListType::const_iterator begin() const { return list_.begin(); }
-  ListType::const_iterator end() const { return list_.end(); }
-  bool empty() const { return list_.empty(); }
-
- private:
-  ListType list_;
-  ListType::iterator last_;
-};
-
-}  // namespace perfetto
-
-#endif  // SRC_TRACING_CORE_PATCH_LIST_H_
-/*
- * Copyright (C) 2017 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef SRC_TRACING_CORE_TRACE_WRITER_IMPL_H_
-#define SRC_TRACING_CORE_TRACE_WRITER_IMPL_H_
-
-// gen_amalgamated expanded: #include "perfetto/base/proc_utils.h"
-// gen_amalgamated expanded: #include "perfetto/ext/tracing/core/basic_types.h"
-// gen_amalgamated expanded: #include "perfetto/ext/tracing/core/shared_memory_abi.h"
-// gen_amalgamated expanded: #include "perfetto/ext/tracing/core/shared_memory_arbiter.h"
-// gen_amalgamated expanded: #include "perfetto/ext/tracing/core/trace_writer.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/message_handle.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/proto_utils.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/root_message.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/scattered_stream_writer.h"
-// gen_amalgamated expanded: #include "perfetto/tracing/buffer_exhausted_policy.h"
-// gen_amalgamated expanded: #include "src/tracing/core/patch_list.h"
-
-namespace perfetto {
-
-class SharedMemoryArbiterImpl;
-
-// See //include/perfetto/tracing/core/trace_writer.h for docs.
-class TraceWriterImpl : public TraceWriter,
-                        public protozero::ScatteredStreamWriter::Delegate {
- public:
-  // TracePacketHandle is defined in trace_writer.h
-  TraceWriterImpl(SharedMemoryArbiterImpl*,
-                  WriterID,
-                  MaybeUnboundBufferID buffer_id,
-                  BufferExhaustedPolicy);
-  ~TraceWriterImpl() override;
-
-  // TraceWriter implementation. See documentation in trace_writer.h.
-  TracePacketHandle NewTracePacket() override;
-  void Flush(std::function<void()> callback = {}) override;
-  WriterID writer_id() const override;
-  uint64_t written() const override {
-    return protobuf_stream_writer_.written();
-  }
-
-  void ResetChunkForTesting() { cur_chunk_ = SharedMemoryABI::Chunk(); }
-  bool drop_packets_for_testing() const { return drop_packets_; }
-
- private:
-  TraceWriterImpl(const TraceWriterImpl&) = delete;
-  TraceWriterImpl& operator=(const TraceWriterImpl&) = delete;
-
-  // ScatteredStreamWriter::Delegate implementation.
-  protozero::ContiguousMemoryRange GetNewBuffer() override;
-
-  // The per-producer arbiter that coordinates access to the shared memory
-  // buffer from several threads.
-  SharedMemoryArbiterImpl* const shmem_arbiter_;
-
-  // ID of the current writer.
-  const WriterID id_;
-
-  // This is copied into the commit request by SharedMemoryArbiter. See comments
-  // in data_source_config.proto for |target_buffer|. If this is a reservation
-  // for a buffer ID in case of a startup trace writer, SharedMemoryArbiterImpl
-  // will also translate the reservation ID to the actual buffer ID.
-  const MaybeUnboundBufferID target_buffer_;
-
-  // Whether GetNewChunk() should stall or return an invalid chunk if the SMB is
-  // exhausted.
-  const BufferExhaustedPolicy buffer_exhausted_policy_;
-
-  // Monotonic (% wrapping) sequence id of the chunk. Together with the WriterID
-  // this allows the Service to reconstruct the linear sequence of packets.
-  ChunkID next_chunk_id_ = 0;
-
-  // The chunk we are holding onto (if any).
-  SharedMemoryABI::Chunk cur_chunk_;
-
-  // Passed to protozero message to write directly into |cur_chunk_|. It
-  // keeps track of the write pointer. It calls us back (GetNewBuffer()) when
-  // |cur_chunk_| is filled.
-  protozero::ScatteredStreamWriter protobuf_stream_writer_;
-
-  // The packet returned via NewTracePacket(). Its owned by this class,
-  // TracePacketHandle has just a pointer to it.
-  std::unique_ptr<protozero::RootMessage<protos::pbzero::TracePacket>>
-      cur_packet_;
-
-  // The start address of |cur_packet_| within |cur_chunk_|. Used to figure out
-  // fragments sizes when a TracePacket write is interrupted by GetNewBuffer().
-  uint8_t* cur_fragment_start_ = nullptr;
-
-  // true if we received a call to GetNewBuffer() after NewTracePacket(),
-  // false if GetNewBuffer() happened during NewTracePacket() prologue, while
-  // starting the TracePacket header.
-  bool fragmenting_packet_ = false;
-
-  // Set to |true| when the current chunk contains the maximum number of packets
-  // a chunk can contain. When this is |true|, the next packet requires starting
-  // a new chunk.
-  bool reached_max_packets_per_chunk_ = false;
-
-  // If we fail to acquire a new chunk when the arbiter operates in
-  // SharedMemory::BufferExhaustedPolicy::kDrop mode, the trace writer enters a
-  // mode in which data is written to a local garbage chunk and dropped.
-  bool drop_packets_ = false;
-
-  // Whether the trace writer should try to acquire a new chunk from the SMB
-  // when the next TracePacket is started because it filled the garbage chunk at
-  // least once since the last attempt.
-  bool retry_new_chunk_after_packet_ = false;
-
-  // Points to the size field of the last packet we wrote to the current chunk.
-  // If the chunk was already returned, this is reset to |nullptr|.
-  uint8_t* last_packet_size_field_ = nullptr;
-
-  // When a packet is fragmented across different chunks, the |size_field| of
-  // the outstanding nested protobuf messages is redirected onto Patch entries
-  // in this list at the time the Chunk is returned (because at that point we
-  // have to release the ownership of the current Chunk). This list will be
-  // later sent out-of-band to the tracing service, who will patch the required
-  // chunks, if they are still around.
-  PatchList patch_list_;
-
-  // PID of the process that created the trace writer. Used for a DCHECK that
-  // aims to detect unsupported process forks while tracing.
-  const base::PlatformProcessId process_id_;
-};
-
-}  // namespace perfetto
-
-#endif  // SRC_TRACING_CORE_TRACE_WRITER_IMPL_H_
-/*
- * Copyright (C) 2017 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-// gen_amalgamated expanded: #include "src/tracing/core/shared_memory_arbiter_impl.h"
-
-#include <algorithm>
-#include <limits>
-#include <utility>
-
-// gen_amalgamated expanded: #include "perfetto/base/logging.h"
-// gen_amalgamated expanded: #include "perfetto/base/task_runner.h"
-// gen_amalgamated expanded: #include "perfetto/base/time.h"
-// gen_amalgamated expanded: #include "perfetto/ext/tracing/core/commit_data_request.h"
-// gen_amalgamated expanded: #include "perfetto/ext/tracing/core/shared_memory.h"
-// gen_amalgamated expanded: #include "src/tracing/core/null_trace_writer.h"
-// gen_amalgamated expanded: #include "src/tracing/core/trace_writer_impl.h"
-
-namespace perfetto {
-
-using Chunk = SharedMemoryABI::Chunk;
-
-namespace {
-static_assert(sizeof(BufferID) == sizeof(uint16_t),
-              "The MaybeUnboundBufferID logic requires BufferID not to grow "
-              "above uint16_t.");
-
-MaybeUnboundBufferID MakeTargetBufferIdForReservation(uint16_t reservation_id) {
-  // Reservation IDs are stored in the upper bits.
-  PERFETTO_CHECK(reservation_id > 0);
-  return static_cast<MaybeUnboundBufferID>(reservation_id) << 16;
-}
-
-bool IsReservationTargetBufferId(MaybeUnboundBufferID buffer_id) {
-  return (buffer_id >> 16) > 0;
-}
-}  // namespace
-
-// static
-SharedMemoryABI::PageLayout SharedMemoryArbiterImpl::default_page_layout =
-    SharedMemoryABI::PageLayout::kPageDiv1;
-
-// static
-constexpr BufferID SharedMemoryArbiterImpl::kInvalidBufferId;
-
-// static
-std::unique_ptr<SharedMemoryArbiter> SharedMemoryArbiter::CreateInstance(
-    SharedMemory* shared_memory,
-    size_t page_size,
-    TracingService::ProducerEndpoint* producer_endpoint,
-    base::TaskRunner* task_runner) {
-  return std::unique_ptr<SharedMemoryArbiterImpl>(
-      new SharedMemoryArbiterImpl(shared_memory->start(), shared_memory->size(),
-                                  page_size, producer_endpoint, task_runner));
-}
-
-// static
-std::unique_ptr<SharedMemoryArbiter> SharedMemoryArbiter::CreateUnboundInstance(
-    SharedMemory* shared_memory,
-    size_t page_size) {
-  return std::unique_ptr<SharedMemoryArbiterImpl>(new SharedMemoryArbiterImpl(
-      shared_memory->start(), shared_memory->size(), page_size,
-      /*producer_endpoint=*/nullptr, /*task_runner=*/nullptr));
-}
-
-SharedMemoryArbiterImpl::SharedMemoryArbiterImpl(
-    void* start,
-    size_t size,
-    size_t page_size,
-    TracingService::ProducerEndpoint* producer_endpoint,
-    base::TaskRunner* task_runner)
-    : initially_bound_(task_runner && producer_endpoint),
-      producer_endpoint_(producer_endpoint),
-      task_runner_(task_runner),
-      shmem_abi_(reinterpret_cast<uint8_t*>(start), size, page_size),
-      active_writer_ids_(kMaxWriterID),
-      fully_bound_(initially_bound_),
-      weak_ptr_factory_(this) {}
-
-Chunk SharedMemoryArbiterImpl::GetNewChunk(
-    const SharedMemoryABI::ChunkHeader& header,
-    BufferExhaustedPolicy buffer_exhausted_policy,
-    size_t size_hint) {
-  PERFETTO_DCHECK(size_hint == 0);  // Not implemented yet.
-  // If initially unbound, we do not support stalling. In theory, we could
-  // support stalling for TraceWriters created after the arbiter and startup
-  // buffer reservations were bound, but to avoid raciness between the creation
-  // of startup writers and binding, we categorically forbid kStall mode.
-  PERFETTO_DCHECK(initially_bound_ ||
-                  buffer_exhausted_policy == BufferExhaustedPolicy::kDrop);
-
-  int stall_count = 0;
-  unsigned stall_interval_us = 0;
-  bool task_runner_runs_on_current_thread = false;
-  static const unsigned kMaxStallIntervalUs = 100000;
-  static const int kLogAfterNStalls = 3;
-  static const int kFlushCommitsAfterEveryNStalls = 2;
-  static const int kAssertAtNStalls = 100;
-
-  for (;;) {
-    // TODO(primiano): Probably this lock is not really required and this code
-    // could be rewritten leveraging only the Try* atomic operations in
-    // SharedMemoryABI. But let's not be too adventurous for the moment.
-    {
-      std::unique_lock<std::mutex> scoped_lock(lock_);
-
-      task_runner_runs_on_current_thread =
-          task_runner_ && task_runner_->RunsTasksOnCurrentThread();
-
-      // If more than half of the SMB.size() is filled with completed chunks for
-      // which we haven't notified the service yet (i.e. they are still enqueued
-      // in |commit_data_req_|), force a synchronous CommitDataRequest() even if
-      // we acquire a chunk, to reduce the likeliness of stalling the writer.
-      //
-      // We can only do this if we're writing on the same thread that we access
-      // the producer endpoint on, since we cannot notify the producer endpoint
-      // to commit synchronously on a different thread. Attempting to flush
-      // synchronously on another thread will lead to subtle bugs caused by
-      // out-of-order commit requests (crbug.com/919187#c28).
-      bool should_commit_synchronously =
-          task_runner_runs_on_current_thread &&
-          buffer_exhausted_policy == BufferExhaustedPolicy::kStall &&
-          commit_data_req_ && bytes_pending_commit_ >= shmem_abi_.size() / 2;
-
-      const size_t initial_page_idx = page_idx_;
-      for (size_t i = 0; i < shmem_abi_.num_pages(); i++) {
-        page_idx_ = (initial_page_idx + i) % shmem_abi_.num_pages();
-        bool is_new_page = false;
-
-        // TODO(primiano): make the page layout dynamic.
-        auto layout = SharedMemoryArbiterImpl::default_page_layout;
-
-        if (shmem_abi_.is_page_free(page_idx_)) {
-          // TODO(primiano): Use the |size_hint| here to decide the layout.
-          is_new_page = shmem_abi_.TryPartitionPage(page_idx_, layout);
-        }
-        uint32_t free_chunks;
-        if (is_new_page) {
-          free_chunks = (1 << SharedMemoryABI::kNumChunksForLayout[layout]) - 1;
-        } else {
-          free_chunks = shmem_abi_.GetFreeChunks(page_idx_);
-        }
-
-        for (uint32_t chunk_idx = 0; free_chunks;
-             chunk_idx++, free_chunks >>= 1) {
-          if (!(free_chunks & 1))
-            continue;
-          // We found a free chunk.
-          Chunk chunk = shmem_abi_.TryAcquireChunkForWriting(
-              page_idx_, chunk_idx, &header);
-          if (!chunk.is_valid())
-            continue;
-          if (stall_count > kLogAfterNStalls) {
-            PERFETTO_LOG("Recovered from stall after %d iterations",
-                         stall_count);
-          }
-
-          if (should_commit_synchronously) {
-            // We can't flush while holding the lock.
-            scoped_lock.unlock();
-            FlushPendingCommitDataRequests();
-            return chunk;
-          } else {
-            return chunk;
-          }
-        }
-      }
-    }  // scoped_lock
-
-    if (buffer_exhausted_policy == BufferExhaustedPolicy::kDrop) {
-      PERFETTO_DLOG("Shared memory buffer exhaused, returning invalid Chunk!");
-      return Chunk();
-    }
-
-    PERFETTO_DCHECK(initially_bound_);
-
-    // All chunks are taken (either kBeingWritten by us or kBeingRead by the
-    // Service).
-    if (stall_count++ == kLogAfterNStalls) {
-      PERFETTO_LOG("Shared memory buffer overrun! Stalling");
-    }
-
-    if (stall_count == kAssertAtNStalls) {
-      PERFETTO_FATAL(
-          "Shared memory buffer max stall count exceeded; possible deadlock");
-    }
-
-    // If the IPC thread itself is stalled because the current process has
-    // filled up the SMB, we need to make sure that the service can process and
-    // purge the chunks written by our process, by flushing any pending commit
-    // requests. Because other threads in our process can continue to
-    // concurrently grab, fill and commit any chunks purged by the service, it
-    // is possible that the SMB remains full and the IPC thread remains stalled,
-    // needing to flush the concurrently queued up commits again. This is
-    // particularly likely with in-process perfetto service where the IPC thread
-    // is the service thread. To avoid remaining stalled forever in such a
-    // situation, we attempt to flush periodically after every N stalls.
-    if (stall_count % kFlushCommitsAfterEveryNStalls == 0 &&
-        task_runner_runs_on_current_thread) {
-      // TODO(primiano): sending the IPC synchronously is a temporary workaround
-      // until the backpressure logic in probes_producer is sorted out. Until
-      // then the risk is that we stall the message loop waiting for the tracing
-      // service to consume the shared memory buffer (SMB) and, for this reason,
-      // never run the task that tells the service to purge the SMB. This must
-      // happen iff we are on the IPC thread, not doing this will cause
-      // deadlocks, doing this on the wrong thread causes out-of-order data
-      // commits (crbug.com/919187#c28).
-      FlushPendingCommitDataRequests();
-    } else {
-      base::SleepMicroseconds(stall_interval_us);
-      stall_interval_us =
-          std::min(kMaxStallIntervalUs, (stall_interval_us + 1) * 8);
-    }
-  }
-}
-
-void SharedMemoryArbiterImpl::ReturnCompletedChunk(
-    Chunk chunk,
-    MaybeUnboundBufferID target_buffer,
-    PatchList* patch_list) {
-  PERFETTO_DCHECK(chunk.is_valid());
-  const WriterID writer_id = chunk.writer_id();
-  UpdateCommitDataRequest(std::move(chunk), writer_id, target_buffer,
-                          patch_list);
-}
-
-void SharedMemoryArbiterImpl::SendPatches(WriterID writer_id,
-                                          MaybeUnboundBufferID target_buffer,
-                                          PatchList* patch_list) {
-  PERFETTO_DCHECK(!patch_list->empty() && patch_list->front().is_patched());
-  UpdateCommitDataRequest(Chunk(), writer_id, target_buffer, patch_list);
-}
-
-void SharedMemoryArbiterImpl::UpdateCommitDataRequest(
-    Chunk chunk,
-    WriterID writer_id,
-    MaybeUnboundBufferID target_buffer,
-    PatchList* patch_list) {
-  // Note: chunk will be invalid if the call came from SendPatches().
-  base::TaskRunner* task_runner_to_post_delayed_callback_on = nullptr;
-  // The delay with which the flush will be posted.
-  uint32_t flush_delay_ms = 0;
-  base::WeakPtr<SharedMemoryArbiterImpl> weak_this;
-  {
-    std::lock_guard<std::mutex> scoped_lock(lock_);
-
-    if (!commit_data_req_) {
-      commit_data_req_.reset(new CommitDataRequest());
-
-      // Flushing the commit is only supported while we're |fully_bound_|. If we
-      // aren't, we'll flush when |fully_bound_| is updated.
-      if (fully_bound_ && !delayed_flush_scheduled_) {
-        weak_this = weak_ptr_factory_.GetWeakPtr();
-        task_runner_to_post_delayed_callback_on = task_runner_;
-        flush_delay_ms = batch_commits_duration_ms_;
-        delayed_flush_scheduled_ = true;
-      }
-    }
-
-    // If a valid chunk is specified, return it and attach it to the request.
-    if (chunk.is_valid()) {
-      PERFETTO_DCHECK(chunk.writer_id() == writer_id);
-      uint8_t chunk_idx = chunk.chunk_idx();
-      bytes_pending_commit_ += chunk.size();
-      size_t page_idx;
-      // If the chunk needs patching, it should not be marked as complete yet,
-      // because this would indicate to the service that the producer will not
-      // be writing to it anymore, while the producer might still apply patches
-      // to the chunk later on. In particular, when re-reading (e.g. because of
-      // periodic scraping) a completed chunk, the service expects the flags of
-      // that chunk not to be removed between reads. So, let's say the producer
-      // marked the chunk as complete here and the service then read it for the
-      // first time. If the producer then fully patched the chunk, thus removing
-      // the kChunkNeedsPatching flag, and the service re-read the chunk after
-      // the patching, the service would be thrown off by the removed flag.
-      if (direct_patching_enabled_ &&
-          (chunk.GetPacketCountAndFlags().second &
-           SharedMemoryABI::ChunkHeader::kChunkNeedsPatching)) {
-        page_idx = shmem_abi_.GetPageAndChunkIndex(std::move(chunk)).first;
-      } else {
-        // If the chunk doesn't need patching, we can mark it as complete
-        // immediately. This allows the service to read it in full while
-        // scraping, which would not be the case if the chunk was left in a
-        // kChunkBeingWritten state.
-        page_idx = shmem_abi_.ReleaseChunkAsComplete(std::move(chunk));
-      }
-
-      // DO NOT access |chunk| after this point, it has been std::move()-d
-      // above.
-      CommitDataRequest::ChunksToMove* ctm =
-          commit_data_req_->add_chunks_to_move();
-      ctm->set_page(static_cast<uint32_t>(page_idx));
-      ctm->set_chunk(chunk_idx);
-      ctm->set_target_buffer(target_buffer);
-    }
-
-    // Process the completed patches for previous chunks from the |patch_list|.
-    CommitDataRequest::ChunkToPatch* last_patch_req = nullptr;
-    while (!patch_list->empty() && patch_list->front().is_patched()) {
-      Patch curr_patch = patch_list->front();
-      patch_list->pop_front();
-      // Patches for the same chunk are contiguous in the |patch_list|. So, to
-      // determine if there are any other patches that apply to the chunk that
-      // is being patched, check if the next patch in the |patch_list| applies
-      // to the same chunk.
-      bool chunk_needs_more_patching =
-          !patch_list->empty() &&
-          patch_list->front().chunk_id == curr_patch.chunk_id;
-
-      if (direct_patching_enabled_ &&
-          TryDirectPatchLocked(writer_id, curr_patch,
-                               chunk_needs_more_patching)) {
-        continue;
-      }
-
-      // The chunk that this patch applies to has already been released to the
-      // service, so it cannot be patches here. Add the patch to the commit data
-      // request, so that it can be sent to the service and applied there.
-      if (!last_patch_req ||
-          last_patch_req->chunk_id() != curr_patch.chunk_id) {
-        last_patch_req = commit_data_req_->add_chunks_to_patch();
-        last_patch_req->set_writer_id(writer_id);
-        last_patch_req->set_chunk_id(curr_patch.chunk_id);
-        last_patch_req->set_target_buffer(target_buffer);
-      }
-      auto* patch = last_patch_req->add_patches();
-      patch->set_offset(curr_patch.offset);
-      patch->set_data(&curr_patch.size_field[0], curr_patch.size_field.size());
-    }
-
-    // Patches are enqueued in the |patch_list| in order and are notified to
-    // the service when the chunk is returned. The only case when the current
-    // patch list is incomplete is if there is an unpatched entry at the head of
-    // the |patch_list| that belongs to the same ChunkID as the last one we are
-    // about to send to the service.
-    if (last_patch_req && !patch_list->empty() &&
-        patch_list->front().chunk_id == last_patch_req->chunk_id()) {
-      last_patch_req->set_has_more_patches(true);
-    }
-
-    // If the buffer is filling up or if we are given a patch for a chunk
-    // that was already sent to the service, we don't want to wait for the next
-    // delayed flush to happen and we flush immediately. Otherwise, if we
-    // accumulate the patch and a crash occurs before the patch is sent, the
-    // service will not know of the patch and won't be able to reconstruct the
-    // trace.
-    if (fully_bound_ &&
-        (last_patch_req || bytes_pending_commit_ >= shmem_abi_.size() / 2)) {
-      weak_this = weak_ptr_factory_.GetWeakPtr();
-      task_runner_to_post_delayed_callback_on = task_runner_;
-      flush_delay_ms = 0;
-    }
-  }  // scoped_lock(lock_)
-
-  // We shouldn't post tasks while locked.
-  // |task_runner_to_post_delayed_callback_on| remains valid after unlocking,
-  // because |task_runner_| is never reset.
-  if (task_runner_to_post_delayed_callback_on) {
-    task_runner_to_post_delayed_callback_on->PostDelayedTask(
-        [weak_this] {
-          if (!weak_this)
-            return;
-          {
-            std::lock_guard<std::mutex> scoped_lock(weak_this->lock_);
-            // Clear |delayed_flush_scheduled_|, allowing the next call to
-            // UpdateCommitDataRequest to start another batching period.
-            weak_this->delayed_flush_scheduled_ = false;
-          }
-          weak_this->FlushPendingCommitDataRequests();
-        },
-        flush_delay_ms);
-  }
-}
-
-bool SharedMemoryArbiterImpl::TryDirectPatchLocked(
-    WriterID writer_id,
-    const Patch& patch,
-    bool chunk_needs_more_patching) {
-  // Search the chunks that are being batched in |commit_data_req_| for a chunk
-  // that needs patching and that matches the provided |writer_id| and
-  // |patch.chunk_id|. Iterate |commit_data_req_| in reverse, since
-  // |commit_data_req_| is appended to at the end with newly-returned chunks,
-  // and patches are more likely to apply to chunks that have been returned
-  // recently.
-  SharedMemoryABI::Chunk chunk;
-  bool chunk_found = false;
-  auto& chunks_to_move = commit_data_req_->chunks_to_move();
-  for (auto ctm_it = chunks_to_move.rbegin(); ctm_it != chunks_to_move.rend();
-       ++ctm_it) {
-    uint32_t layout = shmem_abi_.GetPageLayout(ctm_it->page());
-    auto chunk_state =
-        shmem_abi_.GetChunkStateFromLayout(layout, ctm_it->chunk());
-    // Note: the subset of |commit_data_req_| chunks that still need patching is
-    // also the subset of chunks that are still being written to. The rest of
-    // the chunks in |commit_data_req_| do not need patching and have already
-    // been marked as complete.
-    if (chunk_state != SharedMemoryABI::kChunkBeingWritten)
-      continue;
-
-    chunk =
-        shmem_abi_.GetChunkUnchecked(ctm_it->page(), layout, ctm_it->chunk());
-    if (chunk.writer_id() == writer_id &&
-        chunk.header()->chunk_id.load(std::memory_order_relaxed) ==
-            patch.chunk_id) {
-      chunk_found = true;
-      break;
-    }
-  }
-
-  if (!chunk_found) {
-    // The chunk has already been committed to the service and the patch cannot
-    // be applied in the producer.
-    return false;
-  }
-
-  // Apply the patch.
-  size_t page_idx;
-  uint8_t chunk_idx;
-  std::tie(page_idx, chunk_idx) = shmem_abi_.GetPageAndChunkIndex(chunk);
-  PERFETTO_DCHECK(shmem_abi_.GetChunkState(page_idx, chunk_idx) ==
-                  SharedMemoryABI::ChunkState::kChunkBeingWritten);
-  auto chunk_begin = chunk.payload_begin();
-  uint8_t* ptr = chunk_begin + patch.offset;
-  PERFETTO_CHECK(ptr <= chunk.end() - SharedMemoryABI::kPacketHeaderSize);
-  // DCHECK that we are writing into a zero-filled size field and not into
-  // valid data. It relies on ScatteredStreamWriter::ReserveBytes() to
-  // zero-fill reservations in debug builds.
-  const char zero[SharedMemoryABI::kPacketHeaderSize]{};
-  PERFETTO_DCHECK(memcmp(ptr, &zero, SharedMemoryABI::kPacketHeaderSize) == 0);
-
-  memcpy(ptr, &patch.size_field[0], SharedMemoryABI::kPacketHeaderSize);
-
-  if (!chunk_needs_more_patching) {
-    // Mark that the chunk doesn't need more patching and mark it as complete,
-    // as the producer will not write to it anymore. This allows the service to
-    // read the chunk in full while scraping, which would not be the case if the
-    // chunk was left in a kChunkBeingWritten state.
-    chunk.ClearNeedsPatchingFlag();
-    shmem_abi_.ReleaseChunkAsComplete(std::move(chunk));
-  }
-
-  return true;
-}
-
-void SharedMemoryArbiterImpl::SetBatchCommitsDuration(
-    uint32_t batch_commits_duration_ms) {
-  std::lock_guard<std::mutex> scoped_lock(lock_);
-  batch_commits_duration_ms_ = batch_commits_duration_ms;
-}
-
-bool SharedMemoryArbiterImpl::EnableDirectSMBPatching() {
-  std::lock_guard<std::mutex> scoped_lock(lock_);
-  if (!direct_patching_supported_by_service_) {
-    return false;
-  }
-
-  return direct_patching_enabled_ = true;
-}
-
-void SharedMemoryArbiterImpl::SetDirectSMBPatchingSupportedByService() {
-  std::lock_guard<std::mutex> scoped_lock(lock_);
-  direct_patching_supported_by_service_ = true;
-}
-
-// This function is quite subtle. When making changes keep in mind these two
-// challenges:
-// 1) If the producer stalls and we happen to be on the |task_runner_| IPC
-//    thread (or, for in-process cases, on the same thread where
-//    TracingServiceImpl lives), the CommitData() call must be synchronous and
-//    not posted, to avoid deadlocks.
-// 2) When different threads hit this function, we must guarantee that we don't
-//    accidentally make commits out of order. See commit 4e4fe8f56ef and
-//    crbug.com/919187 for more context.
-void SharedMemoryArbiterImpl::FlushPendingCommitDataRequests(
-    std::function<void()> callback) {
-  std::unique_ptr<CommitDataRequest> req;
-  {
-    std::unique_lock<std::mutex> scoped_lock(lock_);
-
-    // Flushing is only supported while |fully_bound_|, and there may still be
-    // unbound startup trace writers. If so, skip the commit for now - it'll be
-    // done when |fully_bound_| is updated.
-    if (!fully_bound_) {
-      if (callback)
-        pending_flush_callbacks_.push_back(callback);
-      return;
-    }
-
-    // May be called by TraceWriterImpl on any thread.
-    base::TaskRunner* task_runner = task_runner_;
-    if (!task_runner->RunsTasksOnCurrentThread()) {
-      // We shouldn't post a task while holding a lock. |task_runner| remains
-      // valid after unlocking, because |task_runner_| is never reset.
-      scoped_lock.unlock();
-
-      auto weak_this = weak_ptr_factory_.GetWeakPtr();
-      task_runner->PostTask([weak_this, callback] {
-        if (weak_this)
-          weak_this->FlushPendingCommitDataRequests(std::move(callback));
-      });
-      return;
-    }
-
-    // |commit_data_req_| could have become a nullptr, for example when a forced
-    // sync flush happens in GetNewChunk().
-    if (commit_data_req_) {
-      // Make sure any placeholder buffer IDs from StartupWriters are replaced
-      // before sending the request.
-      bool all_placeholders_replaced =
-          ReplaceCommitPlaceholderBufferIdsLocked();
-      // We're |fully_bound_|, thus all writers are bound and all placeholders
-      // should have been replaced.
-      PERFETTO_DCHECK(all_placeholders_replaced);
-
-      // In order to allow patching in the producer we delay the kChunkComplete
-      // transition and keep batched chunks in the kChunkBeingWritten state.
-      // Since we are about to notify the service of all batched chunks, it will
-      // not be possible to apply any more patches to them and we need to move
-      // them to kChunkComplete - otherwise the service won't look at them.
-      for (auto& ctm : commit_data_req_->chunks_to_move()) {
-        uint32_t layout = shmem_abi_.GetPageLayout(ctm.page());
-        auto chunk_state =
-            shmem_abi_.GetChunkStateFromLayout(layout, ctm.chunk());
-        // Note: the subset of |commit_data_req_| chunks that still need
-        // patching is also the subset of chunks that are still being written
-        // to. The rest of the chunks in |commit_data_req_| do not need patching
-        // and have already been marked as complete.
-        if (chunk_state != SharedMemoryABI::kChunkBeingWritten)
-          continue;
-
-        SharedMemoryABI::Chunk chunk =
-            shmem_abi_.GetChunkUnchecked(ctm.page(), layout, ctm.chunk());
-        shmem_abi_.ReleaseChunkAsComplete(std::move(chunk));
-      }
-
-      req = std::move(commit_data_req_);
-      bytes_pending_commit_ = 0;
-    }
-  }  // scoped_lock
-
-  if (req) {
-    producer_endpoint_->CommitData(*req, callback);
-  } else if (callback) {
-    // If |req| was nullptr, it means that an enqueued deferred commit was
-    // executed just before this. At this point send an empty commit request
-    // to the service, just to linearize with it and give the guarantee to the
-    // caller that the data has been flushed into the service.
-    producer_endpoint_->CommitData(CommitDataRequest(), std::move(callback));
-  }
-}
-
-bool SharedMemoryArbiterImpl::TryShutdown() {
-  std::lock_guard<std::mutex> scoped_lock(lock_);
-  did_shutdown_ = true;
-  // Shutdown is safe if there are no active trace writers for this arbiter.
-  return active_writer_ids_.IsEmpty();
-}
-
-std::unique_ptr<TraceWriter> SharedMemoryArbiterImpl::CreateTraceWriter(
-    BufferID target_buffer,
-    BufferExhaustedPolicy buffer_exhausted_policy) {
-  PERFETTO_CHECK(target_buffer > 0);
-  return CreateTraceWriterInternal(target_buffer, buffer_exhausted_policy);
-}
-
-std::unique_ptr<TraceWriter> SharedMemoryArbiterImpl::CreateStartupTraceWriter(
-    uint16_t target_buffer_reservation_id) {
-  PERFETTO_CHECK(!initially_bound_);
-  return CreateTraceWriterInternal(
-      MakeTargetBufferIdForReservation(target_buffer_reservation_id),
-      BufferExhaustedPolicy::kDrop);
-}
-
-void SharedMemoryArbiterImpl::BindToProducerEndpoint(
-    TracingService::ProducerEndpoint* producer_endpoint,
-    base::TaskRunner* task_runner) {
-  PERFETTO_DCHECK(producer_endpoint && task_runner);
-  PERFETTO_DCHECK(task_runner->RunsTasksOnCurrentThread());
-  PERFETTO_CHECK(!initially_bound_);
-
-  bool should_flush = false;
-  std::function<void()> flush_callback;
-  {
-    std::lock_guard<std::mutex> scoped_lock(lock_);
-    PERFETTO_CHECK(!fully_bound_);
-    PERFETTO_CHECK(!producer_endpoint_ && !task_runner_);
-
-    producer_endpoint_ = producer_endpoint;
-    task_runner_ = task_runner;
-
-    // Now that we're bound to a task runner, also reset the WeakPtrFactory to
-    // it. Because this code runs on the task runner, the factory's weak
-    // pointers will be valid on it.
-    weak_ptr_factory_.Reset(this);
-
-    // All writers registered so far should be startup trace writers, since
-    // the producer cannot feasibly know the target buffer for any future
-    // session yet.
-    for (const auto& entry : pending_writers_) {
-      PERFETTO_CHECK(IsReservationTargetBufferId(entry.second));
-    }
-
-    // If all buffer reservations are bound, we can flush pending commits.
-    if (UpdateFullyBoundLocked()) {
-      should_flush = true;
-      flush_callback = TakePendingFlushCallbacksLocked();
-    }
-  }  // scoped_lock
-
-  // Attempt to flush any pending commits (and run pending flush callbacks). If
-  // there are none, this will have no effect. If we ended up in a race that
-  // changed |fully_bound_| back to false, the commit will happen once we become
-  // |fully_bound_| again.
-  if (should_flush)
-    FlushPendingCommitDataRequests(flush_callback);
-}
-
-void SharedMemoryArbiterImpl::BindStartupTargetBuffer(
-    uint16_t target_buffer_reservation_id,
-    BufferID target_buffer_id) {
-  PERFETTO_DCHECK(target_buffer_id > 0);
-  PERFETTO_CHECK(!initially_bound_);
-
-  std::unique_lock<std::mutex> scoped_lock(lock_);
-
-  // We should already be bound to an endpoint, but not fully bound.
-  PERFETTO_CHECK(!fully_bound_);
-  PERFETTO_CHECK(producer_endpoint_);
-  PERFETTO_CHECK(task_runner_);
-  PERFETTO_CHECK(task_runner_->RunsTasksOnCurrentThread());
-
-  BindStartupTargetBufferImpl(std::move(scoped_lock),
-                              target_buffer_reservation_id, target_buffer_id);
-}
-
-void SharedMemoryArbiterImpl::AbortStartupTracingForReservation(
-    uint16_t target_buffer_reservation_id) {
-  PERFETTO_CHECK(!initially_bound_);
-
-  std::unique_lock<std::mutex> scoped_lock(lock_);
-
-  // If we are already bound to an arbiter, we may need to flush after aborting
-  // the session, and thus should be running on the arbiter's task runner.
-  if (task_runner_ && !task_runner_->RunsTasksOnCurrentThread()) {
-    // We shouldn't post tasks while locked.
-    auto* task_runner = task_runner_;
-    scoped_lock.unlock();
-
-    auto weak_this = weak_ptr_factory_.GetWeakPtr();
-    task_runner->PostTask([weak_this, target_buffer_reservation_id]() {
-      if (!weak_this)
-        return;
-      weak_this->AbortStartupTracingForReservation(
-          target_buffer_reservation_id);
-    });
-    return;
-  }
-
-  PERFETTO_CHECK(!fully_bound_);
-
-  // Bind the target buffer reservation to an invalid buffer (ID 0), so that
-  // existing commits, as well as future commits (of currently acquired chunks),
-  // will be released as free free by the service but otherwise ignored (i.e.
-  // not copied into any valid target buffer).
-  BindStartupTargetBufferImpl(std::move(scoped_lock),
-                              target_buffer_reservation_id,
-                              /*target_buffer_id=*/kInvalidBufferId);
-}
-
-void SharedMemoryArbiterImpl::BindStartupTargetBufferImpl(
-    std::unique_lock<std::mutex> scoped_lock,
-    uint16_t target_buffer_reservation_id,
-    BufferID target_buffer_id) {
-  // We should already be bound to an endpoint if the target buffer is valid.
-  PERFETTO_DCHECK((producer_endpoint_ && task_runner_) ||
-                  target_buffer_id == kInvalidBufferId);
-
-  MaybeUnboundBufferID reserved_id =
-      MakeTargetBufferIdForReservation(target_buffer_reservation_id);
-
-  bool should_flush = false;
-  std::function<void()> flush_callback;
-  std::vector<std::pair<WriterID, BufferID>> writers_to_register;
-
-  TargetBufferReservation& reservation =
-      target_buffer_reservations_[reserved_id];
-  PERFETTO_CHECK(!reservation.resolved);
-  reservation.resolved = true;
-  reservation.target_buffer = target_buffer_id;
-
-  // Collect trace writers associated with the reservation.
-  for (auto it = pending_writers_.begin(); it != pending_writers_.end();) {
-    if (it->second == reserved_id) {
-      // No need to register writers that have an invalid target buffer.
-      if (target_buffer_id != kInvalidBufferId) {
-        writers_to_register.push_back(
-            std::make_pair(it->first, target_buffer_id));
-      }
-      it = pending_writers_.erase(it);
-    } else {
-      it++;
-    }
-  }
-
-  // If all buffer reservations are bound, we can flush pending commits.
-  if (UpdateFullyBoundLocked()) {
-    should_flush = true;
-    flush_callback = TakePendingFlushCallbacksLocked();
-  }
-
-  scoped_lock.unlock();
-
-  // Register any newly bound trace writers with the service.
-  for (const auto& writer_and_target_buffer : writers_to_register) {
-    producer_endpoint_->RegisterTraceWriter(writer_and_target_buffer.first,
-                                            writer_and_target_buffer.second);
-  }
-
-  // Attempt to flush any pending commits (and run pending flush callbacks). If
-  // there are none, this will have no effect. If we ended up in a race that
-  // changed |fully_bound_| back to false, the commit will happen once we become
-  // |fully_bound_| again.
-  if (should_flush)
-    FlushPendingCommitDataRequests(flush_callback);
-}
-
-std::function<void()>
-SharedMemoryArbiterImpl::TakePendingFlushCallbacksLocked() {
-  if (pending_flush_callbacks_.empty())
-    return std::function<void()>();
-
-  std::vector<std::function<void()>> pending_flush_callbacks;
-  pending_flush_callbacks.swap(pending_flush_callbacks_);
-  // Capture the callback list into the lambda by copy.
-  return [pending_flush_callbacks]() {
-    for (auto& callback : pending_flush_callbacks)
-      callback();
-  };
-}
-
-void SharedMemoryArbiterImpl::NotifyFlushComplete(FlushRequestID req_id) {
-  base::TaskRunner* task_runner_to_commit_on = nullptr;
-
-  {
-    std::lock_guard<std::mutex> scoped_lock(lock_);
-    // If a commit_data_req_ exists it means that somebody else already posted a
-    // FlushPendingCommitDataRequests() task.
-    if (!commit_data_req_) {
-      commit_data_req_.reset(new CommitDataRequest());
-
-      // Flushing the commit is only supported while we're |fully_bound_|. If we
-      // aren't, we'll flush when |fully_bound_| is updated.
-      if (fully_bound_)
-        task_runner_to_commit_on = task_runner_;
-    } else {
-      // If there is another request queued and that also contains is a reply
-      // to a flush request, reply with the highest id.
-      req_id = std::max(req_id, commit_data_req_->flush_request_id());
-    }
-    commit_data_req_->set_flush_request_id(req_id);
-  }  // scoped_lock
-
-  // We shouldn't post tasks while locked. |task_runner_to_commit_on|
-  // remains valid after unlocking, because |task_runner_| is never reset.
-  if (task_runner_to_commit_on) {
-    auto weak_this = weak_ptr_factory_.GetWeakPtr();
-    task_runner_to_commit_on->PostTask([weak_this] {
-      if (weak_this)
-        weak_this->FlushPendingCommitDataRequests();
-    });
-  }
-}
-
-std::unique_ptr<TraceWriter> SharedMemoryArbiterImpl::CreateTraceWriterInternal(
-    MaybeUnboundBufferID target_buffer,
-    BufferExhaustedPolicy buffer_exhausted_policy) {
-  WriterID id;
-  base::TaskRunner* task_runner_to_register_on = nullptr;
-
-  {
-    std::lock_guard<std::mutex> scoped_lock(lock_);
-    if (did_shutdown_)
-      return std::unique_ptr<TraceWriter>(new NullTraceWriter());
-
-    id = active_writer_ids_.Allocate();
-    if (!id)
-      return std::unique_ptr<TraceWriter>(new NullTraceWriter());
-
-    PERFETTO_DCHECK(!pending_writers_.count(id));
-
-    if (IsReservationTargetBufferId(target_buffer)) {
-      // If the reservation is new, mark it as unbound in
-      // |target_buffer_reservations_|. Otherwise, if the reservation was
-      // already bound, choose the bound buffer ID now.
-      auto it_and_inserted = target_buffer_reservations_.insert(
-          {target_buffer, TargetBufferReservation()});
-      if (it_and_inserted.first->second.resolved)
-        target_buffer = it_and_inserted.first->second.target_buffer;
-    }
-
-    if (IsReservationTargetBufferId(target_buffer)) {
-      // The arbiter and/or startup buffer reservations are not bound yet, so
-      // buffer the registration of the writer until after we're bound.
-      pending_writers_[id] = target_buffer;
-
-      // Mark the arbiter as not fully bound, since we now have at least one
-      // unbound trace writer / target buffer reservation.
-      fully_bound_ = false;
-    } else if (target_buffer != kInvalidBufferId) {
-      // Trace writer is bound, so arbiter should be bound to an endpoint, too.
-      PERFETTO_CHECK(producer_endpoint_ && task_runner_);
-      task_runner_to_register_on = task_runner_;
-    }
-  }  // scoped_lock
-
-  // We shouldn't post tasks while locked. |task_runner_to_register_on|
-  // remains valid after unlocking, because |task_runner_| is never reset.
-  if (task_runner_to_register_on) {
-    auto weak_this = weak_ptr_factory_.GetWeakPtr();
-    task_runner_to_register_on->PostTask([weak_this, id, target_buffer] {
-      if (weak_this)
-        weak_this->producer_endpoint_->RegisterTraceWriter(id, target_buffer);
-    });
-  }
-
-  return std::unique_ptr<TraceWriter>(
-      new TraceWriterImpl(this, id, target_buffer, buffer_exhausted_policy));
-}
-
-void SharedMemoryArbiterImpl::ReleaseWriterID(WriterID id) {
-  base::TaskRunner* task_runner = nullptr;
-  {
-    std::lock_guard<std::mutex> scoped_lock(lock_);
-    active_writer_ids_.Free(id);
-
-    auto it = pending_writers_.find(id);
-    if (it != pending_writers_.end()) {
-      // Writer hasn't been bound yet and thus also not yet registered with the
-      // service.
-      pending_writers_.erase(it);
-      return;
-    }
-
-    // A trace writer from an aborted session may be destroyed before the
-    // arbiter is bound to a task runner. In that case, it was never registered
-    // with the service.
-    if (!task_runner_)
-      return;
-
-    task_runner = task_runner_;
-  }  // scoped_lock
-
-  // We shouldn't post tasks while locked. |task_runner| remains valid after
-  // unlocking, because |task_runner_| is never reset.
-  auto weak_this = weak_ptr_factory_.GetWeakPtr();
-  task_runner->PostTask([weak_this, id] {
-    if (weak_this)
-      weak_this->producer_endpoint_->UnregisterTraceWriter(id);
-  });
-}
-
-bool SharedMemoryArbiterImpl::ReplaceCommitPlaceholderBufferIdsLocked() {
-  if (!commit_data_req_)
-    return true;
-
-  bool all_placeholders_replaced = true;
-  for (auto& chunk : *commit_data_req_->mutable_chunks_to_move()) {
-    if (!IsReservationTargetBufferId(chunk.target_buffer()))
-      continue;
-    const auto it = target_buffer_reservations_.find(chunk.target_buffer());
-    PERFETTO_DCHECK(it != target_buffer_reservations_.end());
-    if (!it->second.resolved) {
-      all_placeholders_replaced = false;
-      continue;
-    }
-    chunk.set_target_buffer(it->second.target_buffer);
-  }
-  for (auto& chunk : *commit_data_req_->mutable_chunks_to_patch()) {
-    if (!IsReservationTargetBufferId(chunk.target_buffer()))
-      continue;
-    const auto it = target_buffer_reservations_.find(chunk.target_buffer());
-    PERFETTO_DCHECK(it != target_buffer_reservations_.end());
-    if (!it->second.resolved) {
-      all_placeholders_replaced = false;
-      continue;
-    }
-    chunk.set_target_buffer(it->second.target_buffer);
-  }
-  return all_placeholders_replaced;
-}
-
-bool SharedMemoryArbiterImpl::UpdateFullyBoundLocked() {
-  if (!producer_endpoint_) {
-    PERFETTO_DCHECK(!fully_bound_);
-    return false;
-  }
-  // We're fully bound if all target buffer reservations have a valid associated
-  // BufferID.
-  fully_bound_ = std::none_of(
-      target_buffer_reservations_.begin(), target_buffer_reservations_.end(),
-      [](std::pair<MaybeUnboundBufferID, TargetBufferReservation> entry) {
-        return !entry.second.resolved;
-      });
-  return fully_bound_;
-}
-
-}  // namespace perfetto
-// gen_amalgamated begin source: src/tracing/core/trace_packet.cc
-// gen_amalgamated begin header: include/perfetto/ext/tracing/core/trace_packet.h
-// gen_amalgamated begin header: include/perfetto/ext/tracing/core/slice.h
-/*
- * Copyright (C) 2017 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef INCLUDE_PERFETTO_EXT_TRACING_CORE_SLICE_H_
-#define INCLUDE_PERFETTO_EXT_TRACING_CORE_SLICE_H_
-
-#include <stddef.h>
-#include <string.h>
-
-#include <memory>
-#include <string>
-#include <vector>
-
-// gen_amalgamated expanded: #include "perfetto/base/logging.h"
-
-namespace perfetto {
-
-// A simple wrapper around a virtually contiguous memory range that contains a
-// TracePacket, or just a portion of it.
-struct Slice {
-  Slice() : start(nullptr), size(0) {}
-  Slice(const void* st, size_t sz) : start(st), size(sz) {}
-  Slice(Slice&& other) noexcept = default;
-
-  // Create a Slice which owns |size| bytes of memory.
-  static Slice Allocate(size_t size) {
-    Slice slice;
-    slice.own_data_.reset(new uint8_t[size]);
-    slice.start = &slice.own_data_[0];
-    slice.size = size;
-    return slice;
-  }
-
-  static Slice TakeOwnership(std::unique_ptr<uint8_t[]> buf, size_t size) {
-    Slice slice;
-    slice.own_data_ = std::move(buf);
-    slice.start = &slice.own_data_[0];
-    slice.size = size;
-    return slice;
-  }
-
-  uint8_t* own_data() {
-    PERFETTO_DCHECK(own_data_);
-    return own_data_.get();
-  }
-
-  const void* start;
-  size_t size;
-
- private:
-  Slice(const Slice&) = delete;
-  void operator=(const Slice&) = delete;
-
-  std::unique_ptr<uint8_t[]> own_data_;
-};
-
-// TODO(primiano): most TracePacket(s) fit in a slice or two. We need something
-// a bit more clever here that has inline capacity for 2 slices and then uses a
-// std::forward_list or a std::vector for the less likely cases.
-using Slices = std::vector<Slice>;
-
-}  // namespace perfetto
-
-#endif  // INCLUDE_PERFETTO_EXT_TRACING_CORE_SLICE_H_
-/*
- * Copyright (C) 2017 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef INCLUDE_PERFETTO_EXT_TRACING_CORE_TRACE_PACKET_H_
-#define INCLUDE_PERFETTO_EXT_TRACING_CORE_TRACE_PACKET_H_
-
-#include <stddef.h>
-#include <memory>
-#include <tuple>
-
-// gen_amalgamated expanded: #include "perfetto/base/export.h"
-// gen_amalgamated expanded: #include "perfetto/base/logging.h"
-// gen_amalgamated expanded: #include "perfetto/ext/tracing/core/slice.h"
-
-namespace perfetto {
-
-// A wrapper around a byte buffer that contains a protobuf-encoded TracePacket
-// (see trace_packet.proto). The TracePacket is decoded only if the Consumer
-// requests that. This is to allow Consumer(s) to just stream the packet over
-// the network or save it to a file without wasting time decoding it and without
-// needing to depend on libprotobuf or the trace_packet.pb.h header.
-// If the packets are saved / streamed and not just consumed locally, consumers
-// should ensure to preserve the unknown fields in the proto. A consumer, in
-// fact, might have an older version .proto which is newer on the producer.
-class PERFETTO_EXPORT TracePacket {
- public:
-  using const_iterator = Slices::const_iterator;
-
-  // The field id of protos::Trace::packet, static_assert()-ed in the unittest.
-  static constexpr uint32_t kPacketFieldNumber = 1;
-
-  // Maximum size of the preamble returned by GetProtoPreamble().
-  static constexpr size_t kMaxPreambleBytes = 8;
-
-  TracePacket();
-  ~TracePacket();
-  TracePacket(TracePacket&&) noexcept;
-  TracePacket& operator=(TracePacket&&);
-
-  // Accesses all the raw slices in the packet, for saving them to file/network.
-  const Slices& slices() const { return slices_; }
-
-  // Mutator, used only by the service and tests.
-  void AddSlice(Slice);
-
-  // Does not copy / take ownership of the memory of the slice. The TracePacket
-  // will be valid only as long as the original buffer is valid.
-  void AddSlice(const void* start, size_t size);
-
-  // Total size of all slices.
-  size_t size() const { return size_; }
-
-  // Generates a protobuf preamble suitable to represent this packet as a
-  // repeated field within a root trace.proto message.
-  // Returns a pointer to a buffer, owned by this class, containing the preamble
-  // and its size.
-  std::tuple<char*, size_t> GetProtoPreamble();
-
-  // Returns the raw protobuf bytes of the slices, all stitched together into
-  // a string. Only for testing.
-  std::string GetRawBytesForTesting();
-
- private:
-  TracePacket(const TracePacket&) = delete;
-  TracePacket& operator=(const TracePacket&) = delete;
-
-  Slices slices_;     // Not owned.
-  size_t size_ = 0;   // SUM(slice.size for slice in slices_).
-  char preamble_[kMaxPreambleBytes];  // Deliberately not initialized.
-
-  // Remember to update the move operators and their unittest if adding new
-  // fields. ConsumerIPCClientImpl::OnReadBuffersResponse() relies on
-  // std::move(TracePacket) to clear up the moved-from instance.
-};
-
-}  // namespace perfetto
-
-#endif  // INCLUDE_PERFETTO_EXT_TRACING_CORE_TRACE_PACKET_H_
-/*
- * Copyright (C) 2017 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-// gen_amalgamated expanded: #include "perfetto/ext/tracing/core/trace_packet.h"
-
-// gen_amalgamated expanded: #include "perfetto/base/logging.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/proto_utils.h"
-
-namespace perfetto {
-
-TracePacket::TracePacket() = default;
-TracePacket::~TracePacket() = default;
-
-TracePacket::TracePacket(TracePacket&& other) noexcept {
-  *this = std::move(other);
-}
-
-TracePacket& TracePacket::operator=(TracePacket&& other) {
-  slices_ = std::move(other.slices_);
-  other.slices_.clear();
-  size_ = other.size_;
-  other.size_ = 0;
-  return *this;
-}
-
-void TracePacket::AddSlice(Slice slice) {
-  size_ += slice.size;
-  slices_.push_back(std::move(slice));
-}
-
-void TracePacket::AddSlice(const void* start, size_t size) {
-  size_ += size;
-  slices_.emplace_back(start, size);
-}
-
-std::tuple<char*, size_t> TracePacket::GetProtoPreamble() {
-  using protozero::proto_utils::MakeTagLengthDelimited;
-  using protozero::proto_utils::WriteVarInt;
-  uint8_t* ptr = reinterpret_cast<uint8_t*>(&preamble_[0]);
-
-  constexpr uint8_t tag = MakeTagLengthDelimited(kPacketFieldNumber);
-  static_assert(tag < 0x80, "TracePacket tag should fit in one byte");
-  *(ptr++) = tag;
-
-  ptr = WriteVarInt(size(), ptr);
-  size_t preamble_size = reinterpret_cast<uintptr_t>(ptr) -
-                         reinterpret_cast<uintptr_t>(&preamble_[0]);
-  PERFETTO_DCHECK(preamble_size <= sizeof(preamble_));
-  return std::make_tuple(&preamble_[0], preamble_size);
-}
-
-std::string TracePacket::GetRawBytesForTesting() {
-  std::string data;
-  data.resize(size());
-  size_t pos = 0;
-  for (const Slice& slice : slices()) {
-    PERFETTO_CHECK(pos + slice.size <= data.size());
-    memcpy(&data[pos], slice.start, slice.size);
-    pos += slice.size;
-  }
-  return data;
-}
-
-}  // namespace perfetto
-// gen_amalgamated begin source: src/tracing/core/trace_writer_impl.cc
-/*
- * Copyright (C) 2017 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-// gen_amalgamated expanded: #include "src/tracing/core/trace_writer_impl.h"
-
-#include <string.h>
-
-#include <algorithm>
-#include <type_traits>
-#include <utility>
-
-// gen_amalgamated expanded: #include "perfetto/base/logging.h"
-// gen_amalgamated expanded: #include "perfetto/ext/base/thread_annotations.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/message.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/proto_utils.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/root_message.h"
-// gen_amalgamated expanded: #include "src/tracing/core/shared_memory_arbiter_impl.h"
-
-// gen_amalgamated expanded: #include "protos/perfetto/trace/trace_packet.pbzero.h"
-
-using protozero::proto_utils::kMessageLengthFieldSize;
-using protozero::proto_utils::WriteRedundantVarInt;
-using ChunkHeader = perfetto::SharedMemoryABI::ChunkHeader;
-
-namespace perfetto {
-
-namespace {
-constexpr size_t kPacketHeaderSize = SharedMemoryABI::kPacketHeaderSize;
-uint8_t g_garbage_chunk[1024];
-}  // namespace
-
-TraceWriterImpl::TraceWriterImpl(SharedMemoryArbiterImpl* shmem_arbiter,
-                                 WriterID id,
-                                 MaybeUnboundBufferID target_buffer,
-                                 BufferExhaustedPolicy buffer_exhausted_policy)
-    : shmem_arbiter_(shmem_arbiter),
-      id_(id),
-      target_buffer_(target_buffer),
-      buffer_exhausted_policy_(buffer_exhausted_policy),
-      protobuf_stream_writer_(this),
-      process_id_(base::GetProcessId()) {
-  // TODO(primiano): we could handle the case of running out of TraceWriterID(s)
-  // more gracefully and always return a no-op TracePacket in NewTracePacket().
-  PERFETTO_CHECK(id_ != 0);
-
-  cur_packet_.reset(new protozero::RootMessage<protos::pbzero::TracePacket>());
-  cur_packet_->Finalize();  // To avoid the DCHECK in NewTracePacket().
-}
-
-TraceWriterImpl::~TraceWriterImpl() {
-  if (cur_chunk_.is_valid()) {
-    cur_packet_->Finalize();
-    Flush();
-  }
-  // This call may cause the shared memory arbiter (and the underlying memory)
-  // to get asynchronously deleted if this was the last trace writer targeting
-  // the arbiter and the arbiter was marked for shutdown.
-  shmem_arbiter_->ReleaseWriterID(id_);
-}
-
-void TraceWriterImpl::Flush(std::function<void()> callback) {
-  // Flush() cannot be called in the middle of a TracePacket.
-  PERFETTO_CHECK(cur_packet_->is_finalized());
-
-  if (cur_chunk_.is_valid()) {
-    shmem_arbiter_->ReturnCompletedChunk(std::move(cur_chunk_), target_buffer_,
-                                         &patch_list_);
-  } else {
-    // When in stall mode, all patches should have been returned with the last
-    // chunk, since the last packet was completed. In drop_packets_ mode, this
-    // may not be the case because the packet may have been fragmenting when
-    // SMB exhaustion occurred and |cur_chunk_| became invalid. In this case,
-    // drop_packets_ should be true.
-    PERFETTO_DCHECK(patch_list_.empty() || drop_packets_);
-  }
-
-  // Always issue the Flush request, even if there is nothing to flush, just
-  // for the sake of getting the callback posted back.
-  shmem_arbiter_->FlushPendingCommitDataRequests(callback);
-  protobuf_stream_writer_.Reset({nullptr, nullptr});
-
-  // |last_packet_size_field_| might have pointed into the chunk we returned.
-  last_packet_size_field_ = nullptr;
-}
-
-TraceWriterImpl::TracePacketHandle TraceWriterImpl::NewTracePacket() {
-  // If we hit this, the caller is calling NewTracePacket() without having
-  // finalized the previous packet.
-  PERFETTO_CHECK(cur_packet_->is_finalized());
-  // If we hit this, this trace writer was created in a different process. This
-  // likely means that the process forked while tracing was active, and the
-  // forked child process tried to emit a trace event. This is not supported, as
-  // it would lead to two processes writing to the same tracing SMB.
-  PERFETTO_DCHECK(process_id_ == base::GetProcessId());
-
-  fragmenting_packet_ = false;
-
-  // Reserve space for the size of the message. Note: this call might re-enter
-  // into this class invoking GetNewBuffer() if there isn't enough space or if
-  // this is the very first call to NewTracePacket().
-  static_assert(kPacketHeaderSize == kMessageLengthFieldSize,
-                "The packet header must match the Message header size");
-
-  bool was_dropping_packets = drop_packets_;
-
-  // It doesn't make sense to begin a packet that is going to fragment
-  // immediately after (8 is just an arbitrary estimation on the minimum size of
-  // a realistic packet).
-  bool chunk_too_full =
-      protobuf_stream_writer_.bytes_available() < kPacketHeaderSize + 8;
-  if (chunk_too_full || reached_max_packets_per_chunk_ ||
-      retry_new_chunk_after_packet_) {
-    protobuf_stream_writer_.Reset(GetNewBuffer());
-  }
-
-  // Send any completed patches to the service to facilitate trace data
-  // recovery by the service. This should only happen when we're completing
-  // the first packet in a chunk which was a continuation from the previous
-  // chunk, i.e. at most once per chunk.
-  if (!patch_list_.empty() && patch_list_.front().is_patched()) {
-    shmem_arbiter_->SendPatches(id_, target_buffer_, &patch_list_);
-  }
-
-  cur_packet_->Reset(&protobuf_stream_writer_);
-  uint8_t* header = protobuf_stream_writer_.ReserveBytes(kPacketHeaderSize);
-  memset(header, 0, kPacketHeaderSize);
-  cur_packet_->set_size_field(header);
-  last_packet_size_field_ = header;
-
-  TracePacketHandle handle(cur_packet_.get());
-  cur_fragment_start_ = protobuf_stream_writer_.write_ptr();
-  fragmenting_packet_ = true;
-
-  if (PERFETTO_LIKELY(!drop_packets_)) {
-    uint16_t new_packet_count = cur_chunk_.IncrementPacketCount();
-    reached_max_packets_per_chunk_ =
-        new_packet_count == ChunkHeader::Packets::kMaxCount;
-
-    if (PERFETTO_UNLIKELY(was_dropping_packets)) {
-      // We've succeeded to get a new chunk from the SMB after we entered
-      // drop_packets_ mode. Record a marker into the new packet to indicate the
-      // data loss.
-      cur_packet_->set_previous_packet_dropped(true);
-    }
-  }
-
-  return handle;
-}
-
-// Called by the Message. We can get here in two cases:
-// 1. In the middle of writing a Message,
-// when |fragmenting_packet_| == true. In this case we want to update the
-// chunk header with a partial packet and start a new partial packet in the
-// new chunk.
-// 2. While calling ReserveBytes() for the packet header in NewTracePacket().
-// In this case |fragmenting_packet_| == false and we just want a new chunk
-// without creating any fragments.
-protozero::ContiguousMemoryRange TraceWriterImpl::GetNewBuffer() {
-  if (fragmenting_packet_ && drop_packets_) {
-    // We can't write the remaining data of the fragmenting packet to a new
-    // chunk, because we have already lost some of its data in the garbage
-    // chunk. Thus, we will wrap around in the garbage chunk, wait until the
-    // current packet was completed, and then attempt to get a new chunk from
-    // the SMB again. Instead, if |drop_packets_| is true and
-    // |fragmenting_packet_| is false, we try to acquire a valid chunk because
-    // the SMB exhaustion might be resolved.
-    retry_new_chunk_after_packet_ = true;
-    return protozero::ContiguousMemoryRange{
-        &g_garbage_chunk[0], &g_garbage_chunk[0] + sizeof(g_garbage_chunk)};
-  }
-
-  // Attempt to grab the next chunk before finalizing the current one, so that
-  // we know whether we need to start dropping packets before writing the
-  // current packet fragment's header.
-  ChunkHeader::Packets packets = {};
-  if (fragmenting_packet_) {
-    packets.count = 1;
-    packets.flags = ChunkHeader::kFirstPacketContinuesFromPrevChunk;
-  }
-
-  // The memory order of the stores below doesn't really matter. This |header|
-  // is just a local temporary object. The GetNewChunk() call below will copy it
-  // into the shared buffer with the proper barriers.
-  ChunkHeader header = {};
-  header.writer_id.store(id_, std::memory_order_relaxed);
-  header.chunk_id.store(next_chunk_id_, std::memory_order_relaxed);
-  header.packets.store(packets, std::memory_order_relaxed);
-
-  SharedMemoryABI::Chunk new_chunk =
-      shmem_arbiter_->GetNewChunk(header, buffer_exhausted_policy_);
-  if (!new_chunk.is_valid()) {
-    // Shared memory buffer exhausted, switch into |drop_packets_| mode. We'll
-    // drop data until the garbage chunk has been filled once and then retry.
-
-    // If we started a packet in one of the previous (valid) chunks, we need to
-    // tell the service to discard it.
-    if (fragmenting_packet_) {
-      // We can only end up here if the previous chunk was a valid chunk,
-      // because we never try to acquire a new chunk in |drop_packets_| mode
-      // while fragmenting.
-      PERFETTO_DCHECK(!drop_packets_);
-
-      // Backfill the last fragment's header with an invalid size (too large),
-      // so that the service's TraceBuffer throws out the incomplete packet.
-      // It'll restart reading from the next chunk we submit.
-      WriteRedundantVarInt(SharedMemoryABI::kPacketSizeDropPacket,
-                           cur_packet_->size_field());
-
-      // Reset the size field, since we should not write the current packet's
-      // size anymore after this.
-      cur_packet_->set_size_field(nullptr);
-
-      // We don't set kLastPacketContinuesOnNextChunk or kChunkNeedsPatching on
-      // the last chunk, because its last fragment will be discarded anyway.
-      // However, the current packet fragment points to a valid |cur_chunk_| and
-      // may have non-finalized nested messages which will continue in the
-      // garbage chunk and currently still point into |cur_chunk_|. As we are
-      // about to return |cur_chunk_|, we need to invalidate the size fields of
-      // those nested messages. Normally we move them in the |patch_list_| (see
-      // below) but in this case, it doesn't make sense to send patches for a
-      // fragment that will be discarded for sure. Thus, we clean up any size
-      // field references into |cur_chunk_|.
-      for (auto* nested_msg = cur_packet_->nested_message(); nested_msg;
-           nested_msg = nested_msg->nested_message()) {
-        uint8_t* const cur_hdr = nested_msg->size_field();
-
-        // If this is false the protozero Message has already been instructed to
-        // write, upon Finalize(), its size into the patch list.
-        bool size_field_points_within_chunk =
-            cur_hdr >= cur_chunk_.payload_begin() &&
-            cur_hdr + kMessageLengthFieldSize <= cur_chunk_.end();
-
-        if (size_field_points_within_chunk)
-          nested_msg->set_size_field(nullptr);
-      }
-    } else if (!drop_packets_ && last_packet_size_field_) {
-      // If we weren't dropping packets before, we should indicate to the
-      // service that we're about to lose data. We do this by invalidating the
-      // size of the last packet in |cur_chunk_|. The service will record
-      // statistics about packets with kPacketSizeDropPacket size.
-      PERFETTO_DCHECK(cur_packet_->is_finalized());
-      PERFETTO_DCHECK(cur_chunk_.is_valid());
-
-      // |last_packet_size_field_| should point within |cur_chunk_|'s payload.
-      PERFETTO_DCHECK(last_packet_size_field_ >= cur_chunk_.payload_begin() &&
-                      last_packet_size_field_ + kMessageLengthFieldSize <=
-                          cur_chunk_.end());
-
-      WriteRedundantVarInt(SharedMemoryABI::kPacketSizeDropPacket,
-                           last_packet_size_field_);
-    }
-
-    if (cur_chunk_.is_valid()) {
-      shmem_arbiter_->ReturnCompletedChunk(std::move(cur_chunk_),
-                                           target_buffer_, &patch_list_);
-    }
-
-    drop_packets_ = true;
-    cur_chunk_ = SharedMemoryABI::Chunk();  // Reset to an invalid chunk.
-    reached_max_packets_per_chunk_ = false;
-    retry_new_chunk_after_packet_ = false;
-    last_packet_size_field_ = nullptr;
-
-    PERFETTO_ANNOTATE_BENIGN_RACE_SIZED(&g_garbage_chunk,
-                                        sizeof(g_garbage_chunk),
-                                        "nobody reads the garbage chunk")
-    return protozero::ContiguousMemoryRange{
-        &g_garbage_chunk[0], &g_garbage_chunk[0] + sizeof(g_garbage_chunk)};
-  }  // if (!new_chunk.is_valid())
-
-  PERFETTO_DCHECK(new_chunk.is_valid());
-
-  if (fragmenting_packet_) {
-    // We should not be fragmenting a packet after we exited drop_packets_ mode,
-    // because we only retry to get a new chunk when a fresh packet is started.
-    PERFETTO_DCHECK(!drop_packets_);
-
-    uint8_t* const wptr = protobuf_stream_writer_.write_ptr();
-    PERFETTO_DCHECK(wptr >= cur_fragment_start_);
-    uint32_t partial_size = static_cast<uint32_t>(wptr - cur_fragment_start_);
-    PERFETTO_DCHECK(partial_size < cur_chunk_.size());
-
-    // Backfill the packet header with the fragment size.
-    PERFETTO_DCHECK(partial_size > 0);
-    cur_packet_->inc_size_already_written(partial_size);
-    cur_chunk_.SetFlag(ChunkHeader::kLastPacketContinuesOnNextChunk);
-    WriteRedundantVarInt(partial_size, cur_packet_->size_field());
-
-    // Descend in the stack of non-finalized nested submessages (if any) and
-    // detour their |size_field| into the |patch_list_|. At this point we have
-    // to release the chunk and they cannot write anymore into that.
-    // TODO(primiano): add tests to cover this logic.
-    bool chunk_needs_patching = false;
-    for (auto* nested_msg = cur_packet_->nested_message(); nested_msg;
-         nested_msg = nested_msg->nested_message()) {
-      uint8_t* const cur_hdr = nested_msg->size_field();
-
-      // If this is false the protozero Message has already been instructed to
-      // write, upon Finalize(), its size into the patch list.
-      bool size_field_points_within_chunk =
-          cur_hdr >= cur_chunk_.payload_begin() &&
-          cur_hdr + kMessageLengthFieldSize <= cur_chunk_.end();
-
-      if (size_field_points_within_chunk) {
-        auto offset =
-            static_cast<uint16_t>(cur_hdr - cur_chunk_.payload_begin());
-        const ChunkID cur_chunk_id =
-            cur_chunk_.header()->chunk_id.load(std::memory_order_relaxed);
-        Patch* patch = patch_list_.emplace_back(cur_chunk_id, offset);
-        nested_msg->set_size_field(&patch->size_field[0]);
-        chunk_needs_patching = true;
-      } else {
-#if PERFETTO_DCHECK_IS_ON()
-        // Ensure that the size field of the message points to an element of the
-        // patch list.
-        auto patch_it = std::find_if(
-            patch_list_.begin(), patch_list_.end(),
-            [cur_hdr](const Patch& p) { return &p.size_field[0] == cur_hdr; });
-        PERFETTO_DCHECK(patch_it != patch_list_.end());
-#endif
-      }
-    }  // for(nested_msg
-
-    if (chunk_needs_patching)
-      cur_chunk_.SetFlag(ChunkHeader::kChunkNeedsPatching);
-  }  // if(fragmenting_packet)
-
-  if (cur_chunk_.is_valid()) {
-    // ReturnCompletedChunk will consume the first patched entries from
-    // |patch_list_| and shrink it.
-    shmem_arbiter_->ReturnCompletedChunk(std::move(cur_chunk_), target_buffer_,
-                                         &patch_list_);
-  }
-
-  // Switch to the new chunk.
-  drop_packets_ = false;
-  reached_max_packets_per_chunk_ = false;
-  retry_new_chunk_after_packet_ = false;
-  next_chunk_id_++;
-  cur_chunk_ = std::move(new_chunk);
-  last_packet_size_field_ = nullptr;
-
-  uint8_t* payload_begin = cur_chunk_.payload_begin();
-  if (fragmenting_packet_) {
-    cur_packet_->set_size_field(payload_begin);
-    last_packet_size_field_ = payload_begin;
-    memset(payload_begin, 0, kPacketHeaderSize);
-    payload_begin += kPacketHeaderSize;
-    cur_fragment_start_ = payload_begin;
-  }
-
-  return protozero::ContiguousMemoryRange{payload_begin, cur_chunk_.end()};
-}
-
-WriterID TraceWriterImpl::writer_id() const {
-  return id_;
-}
-
-// Base class definitions.
-TraceWriter::TraceWriter() = default;
-TraceWriter::~TraceWriter() = default;
-
-}  // namespace perfetto
-// gen_amalgamated begin source: src/tracing/core/virtual_destructors.cc
-// gen_amalgamated begin header: include/perfetto/ext/tracing/core/consumer.h
-// gen_amalgamated begin header: include/perfetto/ext/tracing/core/observable_events.h
-/*
- * Copyright (C) 2017 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef INCLUDE_PERFETTO_EXT_TRACING_CORE_OBSERVABLE_EVENTS_H_
-#define INCLUDE_PERFETTO_EXT_TRACING_CORE_OBSERVABLE_EVENTS_H_
-
-// Creates the aliases in the ::perfetto namespace, doing things like:
-// using ::perfetto::Foo = ::perfetto::protos::gen::Foo.
-// See comments in forward_decls.h for the historical reasons of this
-// indirection layer.
-// gen_amalgamated expanded: #include "perfetto/tracing/core/forward_decls.h"
-
-// gen_amalgamated expanded: #include "protos/perfetto/common/observable_events.gen.h"
-
-#endif  // INCLUDE_PERFETTO_EXT_TRACING_CORE_OBSERVABLE_EVENTS_H_
-/*
- * Copyright (C) 2017 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef INCLUDE_PERFETTO_EXT_TRACING_CORE_CONSUMER_H_
-#define INCLUDE_PERFETTO_EXT_TRACING_CORE_CONSUMER_H_
-
-#include <vector>
-
-// gen_amalgamated expanded: #include "perfetto/base/export.h"
-// gen_amalgamated expanded: #include "perfetto/ext/tracing/core/basic_types.h"
-// gen_amalgamated expanded: #include "perfetto/ext/tracing/core/observable_events.h"
-// gen_amalgamated expanded: #include "perfetto/tracing/core/forward_decls.h"
-namespace perfetto {
-
-class TracePacket;
-
-class PERFETTO_EXPORT Consumer {
- public:
-  virtual ~Consumer();
-
-  // Called by Service (or more typically by the transport layer, on behalf of
-  // the remote Service), once the Consumer <> Service connection has been
-  // established.
-  virtual void OnConnect() = 0;
-
-  // Called by the Service or by the transport layer if the connection with the
-  // service drops, either voluntarily (e.g., by destroying the ConsumerEndpoint
-  // obtained through Service::ConnectConsumer()) or involuntarily (e.g., if the
-  // Service process crashes).
-  virtual void OnDisconnect() = 0;
-
-  // Called by the Service after the tracing session has ended. This can happen
-  // for a variety of reasons:
-  // - The consumer explicitly called DisableTracing()
-  // - The TraceConfig's |duration_ms| has been reached.
-  // - The TraceConfig's |max_file_size_bytes| has been reached.
-  // - An error occurred while trying to enable tracing. In this case |error|
-  //   is non-empty.
-  virtual void OnTracingDisabled(const std::string& error) = 0;
-
-  // Called back by the Service (or transport layer) after invoking
-  // TracingService::ConsumerEndpoint::ReadBuffers(). This function can be
-  // called more than once. Each invocation can carry one or more
-  // TracePacket(s). Upon the last call, |has_more| is set to true (i.e.
-  // |has_more| is a !EOF).
-  virtual void OnTraceData(std::vector<TracePacket>, bool has_more) = 0;
-
-  // Called back by the Service (or transport layer) after invoking
-  // TracingService::ConsumerEndpoint::Detach().
-  // The consumer can disconnect at this point and the trace session will keep
-  // on going. A new consumer can later re-attach passing back the same |key|
-  // passed to Detach(), but only if the two requests come from the same uid.
-  virtual void OnDetach(bool success) = 0;
-
-  // Called back by the Service (or transport layer) after invoking
-  // TracingService::ConsumerEndpoint::Attach().
-  virtual void OnAttach(bool success, const TraceConfig&) = 0;
-
-  // Called back by the Service (or transport layer) after invoking
-  // TracingService::ConsumerEndpoint::GetTraceStats().
-  virtual void OnTraceStats(bool success, const TraceStats&) = 0;
-
-  // Called back by the Service (or transport layer) after invoking
-  // TracingService::ConsumerEndpoint::ObserveEvents() whenever one or more
-  // ObservableEvents of enabled event types occur.
-  virtual void OnObservableEvents(const ObservableEvents&) = 0;
-};
-
-}  // namespace perfetto
-
-#endif  // INCLUDE_PERFETTO_EXT_TRACING_CORE_CONSUMER_H_
-// gen_amalgamated begin header: include/perfetto/ext/tracing/core/producer.h
-/*
- * Copyright (C) 2017 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef INCLUDE_PERFETTO_EXT_TRACING_CORE_PRODUCER_H_
-#define INCLUDE_PERFETTO_EXT_TRACING_CORE_PRODUCER_H_
-
-// gen_amalgamated expanded: #include "perfetto/base/export.h"
-// gen_amalgamated expanded: #include "perfetto/ext/tracing/core/basic_types.h"
-// gen_amalgamated expanded: #include "perfetto/tracing/core/forward_decls.h"
-namespace perfetto {
-
-class SharedMemory;
-
-// A Producer is an entity that connects to the write-only port of the Service
-// and exposes the ability to produce performance data on-demand. The lifecycle
-// of a Producer is as follows:
-// 1. The producer connects to the service and advertises its data sources
-//    (e.g., the ability to get kernel ftraces, to list process stats).
-// 2. The service acknowledges the connection and sends over the SharedMemory
-//    region that will be used to exchange data (together with the signalling
-//    API TracingService::ProducerEndpoint::OnPageAcquired()/OnPageReleased()).
-// 3. At some point later on, the Service asks the Producer to turn on some of
-//    the previously registered data sources, together with some configuration
-//    parameters. This happens via the StartDataSource() callback.
-// 4. In response to that the Producer will spawn an instance of the given data
-//    source and inject its data into the shared memory buffer (obtained during
-//    OnConnect).
-// This interface is subclassed by:
-//  1. The actual producer code in the clients e.g., the ftrace reader process.
-//  2. The transport layer when interposing RPC between service and producers.
-class PERFETTO_EXPORT Producer {
- public:
-  virtual ~Producer();
-
-  // Called by Service (or more typically by the transport layer, on behalf of
-  // the remote Service), once the Producer <> Service connection has been
-  // established.
-  virtual void OnConnect() = 0;
-
-  // Called by the Service or by the transport layer if the connection with the
-  // service drops, either voluntarily (e.g., by destroying the ProducerEndpoint
-  // obtained through Service::ConnectProducer()) or involuntarily (e.g., if the
-  // Service process crashes).
-  // The Producer is expected to tear down all its data sources if this happens.
-  // Once this call returns it is possible to safely destroy the Producer
-  // instance.
-  virtual void OnDisconnect() = 0;
-
-  // Called by the Service after OnConnect but before the first DataSource is
-  // created. Can be used for any setup required before tracing begins.
-  virtual void OnTracingSetup() = 0;
-
-  // The lifecycle methods below are always called in the following sequence:
-  // SetupDataSource  -> StartDataSource -> StopDataSource.
-  // Or, in the edge case where a trace is aborted immediately:
-  // SetupDataSource  -> StopDataSource.
-  // The Setup+Start call sequence is always guaranateed, regardless of the
-  // TraceConfig.deferred_start flags.
-  // Called by the Service to configure one of the data sources previously
-  // registered through TracingService::ProducerEndpoint::RegisterDataSource().
-  // This method is always called before StartDataSource. There is always a
-  // SetupDataSource() call before each StartDataSource() call.
-  // Args:
-  // - DataSourceInstanceID is an identifier chosen by the Service that should
-  //   be assigned to the newly created data source instance. It is used to
-  //   match the StopDataSource() request below.
-  // - DataSourceConfig is the configuration for the new data source (e.g.,
-  //   tells which trace categories to enable).
-  virtual void SetupDataSource(DataSourceInstanceID,
-                               const DataSourceConfig&) = 0;
-
-  // Called by the Service to turn on one of the data sources previously
-  // registered through TracingService::ProducerEndpoint::RegisterDataSource()
-  // and initialized through SetupDataSource().
-  // Both arguments are guaranteed to be identical to the ones passed to the
-  // prior SetupDataSource() call.
-  virtual void StartDataSource(DataSourceInstanceID,
-                               const DataSourceConfig&) = 0;
-
-  // Called by the Service to shut down an existing data source instance.
-  virtual void StopDataSource(DataSourceInstanceID) = 0;
-
-  // Called by the service to request the Producer to commit the data of the
-  // given data sources and return their chunks into the shared memory buffer.
-  // The Producer is expected to invoke NotifyFlushComplete(FlushRequestID) on
-  // the Service after the data has been committed. The producer has to either
-  // reply to the flush requests in order, or can just reply to the latest one
-  // Upon seeing a NotifyFlushComplete(N), the service will assume that all
-  // flushes < N have also been committed.
-  virtual void Flush(FlushRequestID,
-                     const DataSourceInstanceID* data_source_ids,
-                     size_t num_data_sources) = 0;
-
-  // Called by the service to instruct the given data sources to stop referring
-  // to any trace contents emitted so far. The intent is that after processing
-  // this call, the rest of the trace should be parsable even if all of the
-  // packets emitted so far have been lost (for example due to ring buffer
-  // overwrites).
-  //
-  // Called only for Producers with active data sources that have opted in by
-  // setting |handles_incremental_state_clear| in their DataSourceDescriptor.
-  //
-  // The way this call is handled is up to the individual Producer
-  // implementation. Some might wish to emit invalidation markers in the trace
-  // (see TracePacket.incremental_state_cleared for an existing field), and
-  // handle them when parsing the trace.
-  virtual void ClearIncrementalState(
-      const DataSourceInstanceID* data_source_ids,
-      size_t num_data_sources) = 0;
-};
-
-}  // namespace perfetto
-
-#endif  // INCLUDE_PERFETTO_EXT_TRACING_CORE_PRODUCER_H_
-/*
- * Copyright (C) 2018 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-// gen_amalgamated expanded: #include "perfetto/ext/tracing/core/consumer.h"
-// gen_amalgamated expanded: #include "perfetto/ext/tracing/core/producer.h"
-// gen_amalgamated expanded: #include "perfetto/ext/tracing/core/shared_memory.h"
-// gen_amalgamated expanded: #include "perfetto/ext/tracing/core/shared_memory_arbiter.h"
-// gen_amalgamated expanded: #include "perfetto/ext/tracing/core/tracing_service.h"
-
-// This translation unit contains the definitions for the destructor of pure
-// virtual interfaces for the current build target. The alternative would be
-// introducing a one-liner .cc file for each pure virtual interface, which is
-// overkill. This is for compliance with -Wweak-vtables.
-
-namespace perfetto {
-
-Consumer::~Consumer() = default;
-Producer::~Producer() = default;
-TracingService::~TracingService() = default;
-ConsumerEndpoint::~ConsumerEndpoint() = default;
-ProducerEndpoint::~ProducerEndpoint() = default;
-SharedMemory::~SharedMemory() = default;
-SharedMemory::Factory::~Factory() = default;
-SharedMemoryArbiter::~SharedMemoryArbiter() = default;
-
-}  // namespace perfetto
-// gen_amalgamated begin source: src/tracing/console_interceptor.cc
-// gen_amalgamated begin header: gen/protos/perfetto/config/interceptors/console_config.pbzero.h
-// Autogenerated by the ProtoZero compiler plugin. DO NOT EDIT.
-
-#ifndef PERFETTO_PROTOS_PROTOS_PERFETTO_CONFIG_INTERCEPTORS_CONSOLE_CONFIG_PROTO_H_
-#define PERFETTO_PROTOS_PROTOS_PERFETTO_CONFIG_INTERCEPTORS_CONSOLE_CONFIG_PROTO_H_
-
-#include <stddef.h>
-#include <stdint.h>
-
-// gen_amalgamated expanded: #include "perfetto/protozero/field_writer.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/message.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/packed_repeated_fields.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/proto_decoder.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/proto_utils.h"
-
-namespace perfetto {
-namespace protos {
-namespace pbzero {
-
-enum ConsoleConfig_Output : int32_t;
-
-enum ConsoleConfig_Output : int32_t {
-  ConsoleConfig_Output_OUTPUT_UNSPECIFIED = 0,
-  ConsoleConfig_Output_OUTPUT_STDOUT = 1,
-  ConsoleConfig_Output_OUTPUT_STDERR = 2,
-};
-
-const ConsoleConfig_Output ConsoleConfig_Output_MIN = ConsoleConfig_Output_OUTPUT_UNSPECIFIED;
-const ConsoleConfig_Output ConsoleConfig_Output_MAX = ConsoleConfig_Output_OUTPUT_STDERR;
-
-class ConsoleConfig_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/2, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  ConsoleConfig_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit ConsoleConfig_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit ConsoleConfig_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_output() const { return at<1>().valid(); }
-  int32_t output() const { return at<1>().as_int32(); }
-  bool has_enable_colors() const { return at<2>().valid(); }
-  bool enable_colors() const { return at<2>().as_bool(); }
-};
-
-class ConsoleConfig : public ::protozero::Message {
- public:
-  using Decoder = ConsoleConfig_Decoder;
-  enum : int32_t {
-    kOutputFieldNumber = 1,
-    kEnableColorsFieldNumber = 2,
-  };
-  using Output = ::perfetto::protos::pbzero::ConsoleConfig_Output;
-  static const Output OUTPUT_UNSPECIFIED = ConsoleConfig_Output_OUTPUT_UNSPECIFIED;
-  static const Output OUTPUT_STDOUT = ConsoleConfig_Output_OUTPUT_STDOUT;
-  static const Output OUTPUT_STDERR = ConsoleConfig_Output_OUTPUT_STDERR;
-
-  using FieldMetadata_Output =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kEnum,
-      ::perfetto::protos::pbzero::ConsoleConfig_Output,
-      ConsoleConfig>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Output kOutput() { return {}; }
-  void set_output(::perfetto::protos::pbzero::ConsoleConfig_Output value) {
-    static constexpr uint32_t field_id = FieldMetadata_Output::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kEnum>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_EnableColors =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kBool,
-      bool,
-      ConsoleConfig>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_EnableColors kEnableColors() { return {}; }
-  void set_enable_colors(bool value) {
-    static constexpr uint32_t field_id = FieldMetadata_EnableColors::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kBool>
-        ::Append(*this, field_id, value);
-  }
-};
-
-} // Namespace.
-} // Namespace.
-} // Namespace.
-#endif  // Include guard.
-// gen_amalgamated begin header: gen/protos/perfetto/trace/trace_packet_defaults.pbzero.h
-// Autogenerated by the ProtoZero compiler plugin. DO NOT EDIT.
-
-#ifndef PERFETTO_PROTOS_PROTOS_PERFETTO_TRACE_TRACE_PACKET_DEFAULTS_PROTO_H_
-#define PERFETTO_PROTOS_PROTOS_PERFETTO_TRACE_TRACE_PACKET_DEFAULTS_PROTO_H_
-
-#include <stddef.h>
-#include <stdint.h>
-
-// gen_amalgamated expanded: #include "perfetto/protozero/field_writer.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/message.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/packed_repeated_fields.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/proto_decoder.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/proto_utils.h"
-
-namespace perfetto {
-namespace protos {
-namespace pbzero {
-
-class PerfSampleDefaults;
-class TrackEventDefaults;
-
-class TracePacketDefaults_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/58, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  TracePacketDefaults_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit TracePacketDefaults_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit TracePacketDefaults_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_timestamp_clock_id() const { return at<58>().valid(); }
-  uint32_t timestamp_clock_id() const { return at<58>().as_uint32(); }
-  bool has_track_event_defaults() const { return at<11>().valid(); }
-  ::protozero::ConstBytes track_event_defaults() const { return at<11>().as_bytes(); }
-  bool has_perf_sample_defaults() const { return at<12>().valid(); }
-  ::protozero::ConstBytes perf_sample_defaults() const { return at<12>().as_bytes(); }
-};
-
-class TracePacketDefaults : public ::protozero::Message {
- public:
-  using Decoder = TracePacketDefaults_Decoder;
-  enum : int32_t {
-    kTimestampClockIdFieldNumber = 58,
-    kTrackEventDefaultsFieldNumber = 11,
-    kPerfSampleDefaultsFieldNumber = 12,
-  };
-
-  using FieldMetadata_TimestampClockId =
-    ::protozero::proto_utils::FieldMetadata<
-      58,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      TracePacketDefaults>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_TimestampClockId kTimestampClockId() { return {}; }
-  void set_timestamp_clock_id(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_TimestampClockId::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_TrackEventDefaults =
-    ::protozero::proto_utils::FieldMetadata<
-      11,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      TrackEventDefaults,
-      TracePacketDefaults>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_TrackEventDefaults kTrackEventDefaults() { return {}; }
-  template <typename T = TrackEventDefaults> T* set_track_event_defaults() {
-    return BeginNestedMessage<T>(11);
-  }
-
-
-  using FieldMetadata_PerfSampleDefaults =
-    ::protozero::proto_utils::FieldMetadata<
-      12,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      PerfSampleDefaults,
-      TracePacketDefaults>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_PerfSampleDefaults kPerfSampleDefaults() { return {}; }
-  template <typename T = PerfSampleDefaults> T* set_perf_sample_defaults() {
-    return BeginNestedMessage<T>(12);
-  }
-
-};
-
-} // Namespace.
-} // Namespace.
-} // Namespace.
-#endif  // Include guard.
-// gen_amalgamated begin header: gen/protos/perfetto/trace/track_event/process_descriptor.pbzero.h
-// Autogenerated by the ProtoZero compiler plugin. DO NOT EDIT.
-
-#ifndef PERFETTO_PROTOS_PROTOS_PERFETTO_TRACE_TRACK_EVENT_PROCESS_DESCRIPTOR_PROTO_H_
-#define PERFETTO_PROTOS_PROTOS_PERFETTO_TRACE_TRACK_EVENT_PROCESS_DESCRIPTOR_PROTO_H_
-
-#include <stddef.h>
-#include <stdint.h>
-
-// gen_amalgamated expanded: #include "perfetto/protozero/field_writer.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/message.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/packed_repeated_fields.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/proto_decoder.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/proto_utils.h"
-
-namespace perfetto {
-namespace protos {
-namespace pbzero {
-
-enum ProcessDescriptor_ChromeProcessType : int32_t;
-
-enum ProcessDescriptor_ChromeProcessType : int32_t {
-  ProcessDescriptor_ChromeProcessType_PROCESS_UNSPECIFIED = 0,
-  ProcessDescriptor_ChromeProcessType_PROCESS_BROWSER = 1,
-  ProcessDescriptor_ChromeProcessType_PROCESS_RENDERER = 2,
-  ProcessDescriptor_ChromeProcessType_PROCESS_UTILITY = 3,
-  ProcessDescriptor_ChromeProcessType_PROCESS_ZYGOTE = 4,
-  ProcessDescriptor_ChromeProcessType_PROCESS_SANDBOX_HELPER = 5,
-  ProcessDescriptor_ChromeProcessType_PROCESS_GPU = 6,
-  ProcessDescriptor_ChromeProcessType_PROCESS_PPAPI_PLUGIN = 7,
-  ProcessDescriptor_ChromeProcessType_PROCESS_PPAPI_BROKER = 8,
-};
-
-const ProcessDescriptor_ChromeProcessType ProcessDescriptor_ChromeProcessType_MIN = ProcessDescriptor_ChromeProcessType_PROCESS_UNSPECIFIED;
-const ProcessDescriptor_ChromeProcessType ProcessDescriptor_ChromeProcessType_MAX = ProcessDescriptor_ChromeProcessType_PROCESS_PPAPI_BROKER;
-
-class ProcessDescriptor_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/7, /*HAS_NONPACKED_REPEATED_FIELDS=*/true> {
- public:
-  ProcessDescriptor_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit ProcessDescriptor_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit ProcessDescriptor_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_pid() const { return at<1>().valid(); }
-  int32_t pid() const { return at<1>().as_int32(); }
-  bool has_cmdline() const { return at<2>().valid(); }
-  ::protozero::RepeatedFieldIterator<::protozero::ConstChars> cmdline() const { return GetRepeated<::protozero::ConstChars>(2); }
-  bool has_process_name() const { return at<6>().valid(); }
-  ::protozero::ConstChars process_name() const { return at<6>().as_string(); }
-  bool has_process_priority() const { return at<5>().valid(); }
-  int32_t process_priority() const { return at<5>().as_int32(); }
-  bool has_start_timestamp_ns() const { return at<7>().valid(); }
-  int64_t start_timestamp_ns() const { return at<7>().as_int64(); }
-  bool has_chrome_process_type() const { return at<4>().valid(); }
-  int32_t chrome_process_type() const { return at<4>().as_int32(); }
-  bool has_legacy_sort_index() const { return at<3>().valid(); }
-  int32_t legacy_sort_index() const { return at<3>().as_int32(); }
-};
-
-class ProcessDescriptor : public ::protozero::Message {
- public:
-  using Decoder = ProcessDescriptor_Decoder;
-  enum : int32_t {
-    kPidFieldNumber = 1,
-    kCmdlineFieldNumber = 2,
-    kProcessNameFieldNumber = 6,
-    kProcessPriorityFieldNumber = 5,
-    kStartTimestampNsFieldNumber = 7,
-    kChromeProcessTypeFieldNumber = 4,
-    kLegacySortIndexFieldNumber = 3,
-  };
-  using ChromeProcessType = ::perfetto::protos::pbzero::ProcessDescriptor_ChromeProcessType;
-  static const ChromeProcessType PROCESS_UNSPECIFIED = ProcessDescriptor_ChromeProcessType_PROCESS_UNSPECIFIED;
-  static const ChromeProcessType PROCESS_BROWSER = ProcessDescriptor_ChromeProcessType_PROCESS_BROWSER;
-  static const ChromeProcessType PROCESS_RENDERER = ProcessDescriptor_ChromeProcessType_PROCESS_RENDERER;
-  static const ChromeProcessType PROCESS_UTILITY = ProcessDescriptor_ChromeProcessType_PROCESS_UTILITY;
-  static const ChromeProcessType PROCESS_ZYGOTE = ProcessDescriptor_ChromeProcessType_PROCESS_ZYGOTE;
-  static const ChromeProcessType PROCESS_SANDBOX_HELPER = ProcessDescriptor_ChromeProcessType_PROCESS_SANDBOX_HELPER;
-  static const ChromeProcessType PROCESS_GPU = ProcessDescriptor_ChromeProcessType_PROCESS_GPU;
-  static const ChromeProcessType PROCESS_PPAPI_PLUGIN = ProcessDescriptor_ChromeProcessType_PROCESS_PPAPI_PLUGIN;
-  static const ChromeProcessType PROCESS_PPAPI_BROKER = ProcessDescriptor_ChromeProcessType_PROCESS_PPAPI_BROKER;
-
-  using FieldMetadata_Pid =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt32,
-      int32_t,
-      ProcessDescriptor>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Pid kPid() { return {}; }
-  void set_pid(int32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Pid::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Cmdline =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kRepeatedNotPacked,
-      ::protozero::proto_utils::ProtoSchemaType::kString,
-      std::string,
-      ProcessDescriptor>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Cmdline kCmdline() { return {}; }
-  void add_cmdline(const char* data, size_t size) {
-    AppendBytes(FieldMetadata_Cmdline::kFieldId, data, size);
-  }
-  void add_cmdline(std::string value) {
-    static constexpr uint32_t field_id = FieldMetadata_Cmdline::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kString>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_ProcessName =
-    ::protozero::proto_utils::FieldMetadata<
-      6,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kString,
-      std::string,
-      ProcessDescriptor>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_ProcessName kProcessName() { return {}; }
-  void set_process_name(const char* data, size_t size) {
-    AppendBytes(FieldMetadata_ProcessName::kFieldId, data, size);
-  }
-  void set_process_name(std::string value) {
-    static constexpr uint32_t field_id = FieldMetadata_ProcessName::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kString>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_ProcessPriority =
-    ::protozero::proto_utils::FieldMetadata<
-      5,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt32,
-      int32_t,
-      ProcessDescriptor>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_ProcessPriority kProcessPriority() { return {}; }
-  void set_process_priority(int32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_ProcessPriority::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_StartTimestampNs =
-    ::protozero::proto_utils::FieldMetadata<
-      7,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt64,
-      int64_t,
-      ProcessDescriptor>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_StartTimestampNs kStartTimestampNs() { return {}; }
-  void set_start_timestamp_ns(int64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_StartTimestampNs::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_ChromeProcessType =
-    ::protozero::proto_utils::FieldMetadata<
-      4,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kEnum,
-      ::perfetto::protos::pbzero::ProcessDescriptor_ChromeProcessType,
-      ProcessDescriptor>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_ChromeProcessType kChromeProcessType() { return {}; }
-  void set_chrome_process_type(::perfetto::protos::pbzero::ProcessDescriptor_ChromeProcessType value) {
-    static constexpr uint32_t field_id = FieldMetadata_ChromeProcessType::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kEnum>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_LegacySortIndex =
-    ::protozero::proto_utils::FieldMetadata<
-      3,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt32,
-      int32_t,
-      ProcessDescriptor>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_LegacySortIndex kLegacySortIndex() { return {}; }
-  void set_legacy_sort_index(int32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_LegacySortIndex::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt32>
-        ::Append(*this, field_id, value);
-  }
-};
-
-} // Namespace.
-} // Namespace.
-} // Namespace.
-#endif  // Include guard.
-// gen_amalgamated begin header: gen/protos/perfetto/trace/track_event/thread_descriptor.pbzero.h
-// Autogenerated by the ProtoZero compiler plugin. DO NOT EDIT.
-
-#ifndef PERFETTO_PROTOS_PROTOS_PERFETTO_TRACE_TRACK_EVENT_THREAD_DESCRIPTOR_PROTO_H_
-#define PERFETTO_PROTOS_PROTOS_PERFETTO_TRACE_TRACK_EVENT_THREAD_DESCRIPTOR_PROTO_H_
-
-#include <stddef.h>
-#include <stdint.h>
-
-// gen_amalgamated expanded: #include "perfetto/protozero/field_writer.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/message.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/packed_repeated_fields.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/proto_decoder.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/proto_utils.h"
-
-namespace perfetto {
-namespace protos {
-namespace pbzero {
-
-enum ThreadDescriptor_ChromeThreadType : int32_t;
-
-enum ThreadDescriptor_ChromeThreadType : int32_t {
-  ThreadDescriptor_ChromeThreadType_CHROME_THREAD_UNSPECIFIED = 0,
-  ThreadDescriptor_ChromeThreadType_CHROME_THREAD_MAIN = 1,
-  ThreadDescriptor_ChromeThreadType_CHROME_THREAD_IO = 2,
-  ThreadDescriptor_ChromeThreadType_CHROME_THREAD_POOL_BG_WORKER = 3,
-  ThreadDescriptor_ChromeThreadType_CHROME_THREAD_POOL_FG_WORKER = 4,
-  ThreadDescriptor_ChromeThreadType_CHROME_THREAD_POOL_FB_BLOCKING = 5,
-  ThreadDescriptor_ChromeThreadType_CHROME_THREAD_POOL_BG_BLOCKING = 6,
-  ThreadDescriptor_ChromeThreadType_CHROME_THREAD_POOL_SERVICE = 7,
-  ThreadDescriptor_ChromeThreadType_CHROME_THREAD_COMPOSITOR = 8,
-  ThreadDescriptor_ChromeThreadType_CHROME_THREAD_VIZ_COMPOSITOR = 9,
-  ThreadDescriptor_ChromeThreadType_CHROME_THREAD_COMPOSITOR_WORKER = 10,
-  ThreadDescriptor_ChromeThreadType_CHROME_THREAD_SERVICE_WORKER = 11,
-  ThreadDescriptor_ChromeThreadType_CHROME_THREAD_MEMORY_INFRA = 50,
-  ThreadDescriptor_ChromeThreadType_CHROME_THREAD_SAMPLING_PROFILER = 51,
-};
-
-const ThreadDescriptor_ChromeThreadType ThreadDescriptor_ChromeThreadType_MIN = ThreadDescriptor_ChromeThreadType_CHROME_THREAD_UNSPECIFIED;
-const ThreadDescriptor_ChromeThreadType ThreadDescriptor_ChromeThreadType_MAX = ThreadDescriptor_ChromeThreadType_CHROME_THREAD_SAMPLING_PROFILER;
-
-class ThreadDescriptor_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/8, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  ThreadDescriptor_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit ThreadDescriptor_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit ThreadDescriptor_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_pid() const { return at<1>().valid(); }
-  int32_t pid() const { return at<1>().as_int32(); }
-  bool has_tid() const { return at<2>().valid(); }
-  int32_t tid() const { return at<2>().as_int32(); }
-  bool has_thread_name() const { return at<5>().valid(); }
-  ::protozero::ConstChars thread_name() const { return at<5>().as_string(); }
-  bool has_chrome_thread_type() const { return at<4>().valid(); }
-  int32_t chrome_thread_type() const { return at<4>().as_int32(); }
-  bool has_reference_timestamp_us() const { return at<6>().valid(); }
-  int64_t reference_timestamp_us() const { return at<6>().as_int64(); }
-  bool has_reference_thread_time_us() const { return at<7>().valid(); }
-  int64_t reference_thread_time_us() const { return at<7>().as_int64(); }
-  bool has_reference_thread_instruction_count() const { return at<8>().valid(); }
-  int64_t reference_thread_instruction_count() const { return at<8>().as_int64(); }
-  bool has_legacy_sort_index() const { return at<3>().valid(); }
-  int32_t legacy_sort_index() const { return at<3>().as_int32(); }
-};
-
-class ThreadDescriptor : public ::protozero::Message {
- public:
-  using Decoder = ThreadDescriptor_Decoder;
-  enum : int32_t {
-    kPidFieldNumber = 1,
-    kTidFieldNumber = 2,
-    kThreadNameFieldNumber = 5,
-    kChromeThreadTypeFieldNumber = 4,
-    kReferenceTimestampUsFieldNumber = 6,
-    kReferenceThreadTimeUsFieldNumber = 7,
-    kReferenceThreadInstructionCountFieldNumber = 8,
-    kLegacySortIndexFieldNumber = 3,
-  };
-  using ChromeThreadType = ::perfetto::protos::pbzero::ThreadDescriptor_ChromeThreadType;
-  static const ChromeThreadType CHROME_THREAD_UNSPECIFIED = ThreadDescriptor_ChromeThreadType_CHROME_THREAD_UNSPECIFIED;
-  static const ChromeThreadType CHROME_THREAD_MAIN = ThreadDescriptor_ChromeThreadType_CHROME_THREAD_MAIN;
-  static const ChromeThreadType CHROME_THREAD_IO = ThreadDescriptor_ChromeThreadType_CHROME_THREAD_IO;
-  static const ChromeThreadType CHROME_THREAD_POOL_BG_WORKER = ThreadDescriptor_ChromeThreadType_CHROME_THREAD_POOL_BG_WORKER;
-  static const ChromeThreadType CHROME_THREAD_POOL_FG_WORKER = ThreadDescriptor_ChromeThreadType_CHROME_THREAD_POOL_FG_WORKER;
-  static const ChromeThreadType CHROME_THREAD_POOL_FB_BLOCKING = ThreadDescriptor_ChromeThreadType_CHROME_THREAD_POOL_FB_BLOCKING;
-  static const ChromeThreadType CHROME_THREAD_POOL_BG_BLOCKING = ThreadDescriptor_ChromeThreadType_CHROME_THREAD_POOL_BG_BLOCKING;
-  static const ChromeThreadType CHROME_THREAD_POOL_SERVICE = ThreadDescriptor_ChromeThreadType_CHROME_THREAD_POOL_SERVICE;
-  static const ChromeThreadType CHROME_THREAD_COMPOSITOR = ThreadDescriptor_ChromeThreadType_CHROME_THREAD_COMPOSITOR;
-  static const ChromeThreadType CHROME_THREAD_VIZ_COMPOSITOR = ThreadDescriptor_ChromeThreadType_CHROME_THREAD_VIZ_COMPOSITOR;
-  static const ChromeThreadType CHROME_THREAD_COMPOSITOR_WORKER = ThreadDescriptor_ChromeThreadType_CHROME_THREAD_COMPOSITOR_WORKER;
-  static const ChromeThreadType CHROME_THREAD_SERVICE_WORKER = ThreadDescriptor_ChromeThreadType_CHROME_THREAD_SERVICE_WORKER;
-  static const ChromeThreadType CHROME_THREAD_MEMORY_INFRA = ThreadDescriptor_ChromeThreadType_CHROME_THREAD_MEMORY_INFRA;
-  static const ChromeThreadType CHROME_THREAD_SAMPLING_PROFILER = ThreadDescriptor_ChromeThreadType_CHROME_THREAD_SAMPLING_PROFILER;
-
-  using FieldMetadata_Pid =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt32,
-      int32_t,
-      ThreadDescriptor>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Pid kPid() { return {}; }
-  void set_pid(int32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Pid::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Tid =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt32,
-      int32_t,
-      ThreadDescriptor>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Tid kTid() { return {}; }
-  void set_tid(int32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Tid::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_ThreadName =
-    ::protozero::proto_utils::FieldMetadata<
-      5,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kString,
-      std::string,
-      ThreadDescriptor>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_ThreadName kThreadName() { return {}; }
-  void set_thread_name(const char* data, size_t size) {
-    AppendBytes(FieldMetadata_ThreadName::kFieldId, data, size);
-  }
-  void set_thread_name(std::string value) {
-    static constexpr uint32_t field_id = FieldMetadata_ThreadName::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kString>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_ChromeThreadType =
-    ::protozero::proto_utils::FieldMetadata<
-      4,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kEnum,
-      ::perfetto::protos::pbzero::ThreadDescriptor_ChromeThreadType,
-      ThreadDescriptor>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_ChromeThreadType kChromeThreadType() { return {}; }
-  void set_chrome_thread_type(::perfetto::protos::pbzero::ThreadDescriptor_ChromeThreadType value) {
-    static constexpr uint32_t field_id = FieldMetadata_ChromeThreadType::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kEnum>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_ReferenceTimestampUs =
-    ::protozero::proto_utils::FieldMetadata<
-      6,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt64,
-      int64_t,
-      ThreadDescriptor>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_ReferenceTimestampUs kReferenceTimestampUs() { return {}; }
-  void set_reference_timestamp_us(int64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_ReferenceTimestampUs::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_ReferenceThreadTimeUs =
-    ::protozero::proto_utils::FieldMetadata<
-      7,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt64,
-      int64_t,
-      ThreadDescriptor>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_ReferenceThreadTimeUs kReferenceThreadTimeUs() { return {}; }
-  void set_reference_thread_time_us(int64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_ReferenceThreadTimeUs::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_ReferenceThreadInstructionCount =
-    ::protozero::proto_utils::FieldMetadata<
-      8,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt64,
-      int64_t,
-      ThreadDescriptor>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_ReferenceThreadInstructionCount kReferenceThreadInstructionCount() { return {}; }
-  void set_reference_thread_instruction_count(int64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_ReferenceThreadInstructionCount::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_LegacySortIndex =
-    ::protozero::proto_utils::FieldMetadata<
-      3,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt32,
-      int32_t,
-      ThreadDescriptor>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_LegacySortIndex kLegacySortIndex() { return {}; }
-  void set_legacy_sort_index(int32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_LegacySortIndex::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt32>
-        ::Append(*this, field_id, value);
-  }
-};
-
-} // Namespace.
-} // Namespace.
-} // Namespace.
-#endif  // Include guard.
-/*
- * Copyright (C) 2020 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-// gen_amalgamated expanded: #include "perfetto/tracing/console_interceptor.h"
-
-// gen_amalgamated expanded: #include "perfetto/ext/base/file_utils.h"
-// gen_amalgamated expanded: #include "perfetto/ext/base/hash.h"
-// gen_amalgamated expanded: #include "perfetto/ext/base/optional.h"
-// gen_amalgamated expanded: #include "perfetto/ext/base/scoped_file.h"
-// gen_amalgamated expanded: #include "perfetto/ext/base/utils.h"
-// gen_amalgamated expanded: #include "perfetto/tracing/internal/track_event_internal.h"
-
-// gen_amalgamated expanded: #include "protos/perfetto/common/interceptor_descriptor.gen.h"
-// gen_amalgamated expanded: #include "protos/perfetto/config/data_source_config.gen.h"
-// gen_amalgamated expanded: #include "protos/perfetto/config/interceptor_config.gen.h"
-// gen_amalgamated expanded: #include "protos/perfetto/config/interceptors/console_config.pbzero.h"
-// gen_amalgamated expanded: #include "protos/perfetto/trace/interned_data/interned_data.pbzero.h"
-// gen_amalgamated expanded: #include "protos/perfetto/trace/trace_packet.pbzero.h"
-// gen_amalgamated expanded: #include "protos/perfetto/trace/trace_packet_defaults.pbzero.h"
-// gen_amalgamated expanded: #include "protos/perfetto/trace/track_event/process_descriptor.pbzero.h"
-// gen_amalgamated expanded: #include "protos/perfetto/trace/track_event/thread_descriptor.pbzero.h"
-// gen_amalgamated expanded: #include "protos/perfetto/trace/track_event/track_descriptor.pbzero.h"
-// gen_amalgamated expanded: #include "protos/perfetto/trace/track_event/track_event.pbzero.h"
-
-#include <algorithm>
-#include <cmath>
-#include <tuple>
-
-namespace perfetto {
-
-// sRGB color.
-struct ConsoleColor {
-  uint8_t r;
-  uint8_t g;
-  uint8_t b;
-};
-
-namespace {
-
-int g_output_fd_for_testing;
-
-// Google Turbo colormap.
-constexpr std::array<ConsoleColor, 16> kTurboColors = {{
-    ConsoleColor{0x30, 0x12, 0x3b},
-    ConsoleColor{0x40, 0x40, 0xa1},
-    ConsoleColor{0x46, 0x6b, 0xe3},
-    ConsoleColor{0x41, 0x93, 0xfe},
-    ConsoleColor{0x28, 0xbb, 0xeb},
-    ConsoleColor{0x17, 0xdc, 0xc2},
-    ConsoleColor{0x32, 0xf1, 0x97},
-    ConsoleColor{0x6d, 0xfd, 0x62},
-    ConsoleColor{0xa4, 0xfc, 0x3b},
-    ConsoleColor{0xcd, 0xeb, 0x34},
-    ConsoleColor{0xed, 0xcf, 0x39},
-    ConsoleColor{0xfd, 0xab, 0x33},
-    ConsoleColor{0xfa, 0x7d, 0x20},
-    ConsoleColor{0xea, 0x50, 0x0d},
-    ConsoleColor{0xd0, 0x2f, 0x04},
-    ConsoleColor{0xa9, 0x15, 0x01},
-}};
-
-constexpr size_t kHueBits = 4;
-constexpr uint32_t kMaxHue = kTurboColors.size() << kHueBits;
-constexpr uint8_t kLightness = 128u;
-constexpr ConsoleColor kWhiteColor{0xff, 0xff, 0xff};
-
-const char kDim[] = "\x1b[90m";
-const char kDefault[] = "\x1b[39m";
-const char kReset[] = "\x1b[0m";
-
-#define FMT_RGB_SET "\x1b[38;2;%d;%d;%dm"
-#define FMT_RGB_SET_BG "\x1b[48;2;%d;%d;%dm"
-
-ConsoleColor Mix(ConsoleColor a, ConsoleColor b, uint8_t ratio) {
-  return {
-      static_cast<uint8_t>(a.r + (((b.r - a.r) * ratio) >> 8)),
-      static_cast<uint8_t>(a.g + (((b.g - a.g) * ratio) >> 8)),
-      static_cast<uint8_t>(a.b + (((b.b - a.b) * ratio) >> 8)),
-  };
-}
-
-ConsoleColor HueToRGB(uint32_t hue) {
-  PERFETTO_DCHECK(hue < kMaxHue);
-  uint32_t c1 = hue >> kHueBits;
-  uint32_t c2 =
-      std::min(static_cast<uint32_t>(kTurboColors.size() - 1), c1 + 1u);
-  uint32_t ratio = hue & ((1 << kHueBits) - 1);
-  return Mix(kTurboColors[c1], kTurboColors[c2],
-             static_cast<uint8_t>(ratio | (ratio << kHueBits)));
-}
-
-uint32_t CounterToHue(uint32_t counter) {
-  // We split the hue space into 8 segments, reversing the order of bits so
-  // successive counter values will be far from each other.
-  uint32_t reversed =
-      ((counter & 0x7) >> 2) | ((counter & 0x3)) | ((counter & 0x1) << 2);
-  return reversed * kMaxHue / 8;
-}
-
-}  // namespace
-
-class ConsoleInterceptor::Delegate : public TrackEventStateTracker::Delegate {
- public:
-  explicit Delegate(InterceptorContext&);
-  ~Delegate() override;
-
-  TrackEventStateTracker::SessionState* GetSessionState() override;
-  void OnTrackUpdated(TrackEventStateTracker::Track&) override;
-  void OnTrackEvent(const TrackEventStateTracker::Track&,
-                    const TrackEventStateTracker::ParsedTrackEvent&) override;
-
- private:
-  using SelfHandle = LockedHandle<ConsoleInterceptor>;
-
-  InterceptorContext& context_;
-  base::Optional<SelfHandle> locked_self_;
-};
-
-ConsoleInterceptor::~ConsoleInterceptor() = default;
-
-ConsoleInterceptor::ThreadLocalState::ThreadLocalState(
-    ThreadLocalStateArgs& args) {
-  if (auto self = args.GetInterceptorLocked()) {
-    start_time_ns = self->start_time_ns_;
-    use_colors = self->use_colors_;
-    fd = self->fd_;
-  }
-}
-
-ConsoleInterceptor::ThreadLocalState::~ThreadLocalState() = default;
-
-ConsoleInterceptor::Delegate::Delegate(InterceptorContext& context)
-    : context_(context) {}
-ConsoleInterceptor::Delegate::~Delegate() = default;
-
-TrackEventStateTracker::SessionState*
-ConsoleInterceptor::Delegate::GetSessionState() {
-  // When the session state is retrieved for the first time, it is cached (and
-  // kept locked) until we return from OnTracePacket. This avoids having to lock
-  // and unlock the instance multiple times per invocation.
-  if (locked_self_.has_value())
-    return &locked_self_.value()->session_state_;
-  locked_self_ =
-      base::make_optional<SelfHandle>(context_.GetInterceptorLocked());
-  return &locked_self_.value()->session_state_;
-}
-
-void ConsoleInterceptor::Delegate::OnTrackUpdated(
-    TrackEventStateTracker::Track& track) {
-  auto track_color = HueToRGB(CounterToHue(track.index));
-  std::array<char, 16> title;
-  if (!track.name.empty()) {
-    snprintf(title.data(), title.size(), "%s", track.name.c_str());
-  } else if (track.pid && track.tid) {
-    snprintf(title.data(), title.size(), "%u:%u",
-             static_cast<uint32_t>(track.pid),
-             static_cast<uint32_t>(track.tid));
-  } else if (track.pid) {
-    snprintf(title.data(), title.size(), "%" PRId64, track.pid);
-  } else {
-    snprintf(title.data(), title.size(), "%" PRIu64, track.uuid);
-  }
-  int title_width = static_cast<int>(title.size());
-
-  auto& tls = context_.GetThreadLocalState();
-  std::array<char, 128> message_prefix{};
-  ssize_t written = 0;
-  if (tls.use_colors) {
-    written = snprintf(message_prefix.data(), message_prefix.size(),
-                       FMT_RGB_SET_BG " %s%s %-*.*s", track_color.r,
-                       track_color.g, track_color.b, kReset, kDim, title_width,
-                       title_width, title.data());
-  } else {
-    written = snprintf(message_prefix.data(), message_prefix.size(), "%-*.*s",
-                       title_width + 2, title_width, title.data());
-  }
-  if (written < 0)
-    written = message_prefix.size();
-  track.user_data.assign(message_prefix.begin(),
-                         message_prefix.begin() + written);
-}
-
-void ConsoleInterceptor::Delegate::OnTrackEvent(
-    const TrackEventStateTracker::Track& track,
-    const TrackEventStateTracker::ParsedTrackEvent& event) {
-  // Start printing.
-  auto& tls = context_.GetThreadLocalState();
-  tls.buffer_pos = 0;
-
-  // Print timestamp and track identifier.
-  SetColor(context_, kDim);
-  Printf(context_, "[%7.3lf] %.*s",
-         static_cast<double>(event.timestamp_ns - tls.start_time_ns) / 1e9,
-         static_cast<int>(track.user_data.size()), track.user_data.data());
-
-  // Print category.
-  Printf(context_, "%-5.*s ",
-         std::min(5, static_cast<int>(event.category.size)),
-         event.category.data);
-
-  // Print stack depth.
-  for (size_t i = 0; i < event.stack_depth; i++) {
-    Printf(context_, "-  ");
-  }
-
-  // Print slice name.
-  auto slice_color = HueToRGB(event.name_hash % kMaxHue);
-  auto highlight_color = Mix(slice_color, kWhiteColor, kLightness);
-  if (event.track_event.type() == protos::pbzero::TrackEvent::TYPE_SLICE_END) {
-    SetColor(context_, kDefault);
-    Printf(context_, "} ");
-  }
-  SetColor(context_, highlight_color);
-  Printf(context_, "%.*s", static_cast<int>(event.name.size), event.name.data);
-  SetColor(context_, kReset);
-  if (event.track_event.type() ==
-      protos::pbzero::TrackEvent::TYPE_SLICE_BEGIN) {
-    SetColor(context_, kDefault);
-    Printf(context_, " {");
-  }
-
-  // Print annotations.
-  if (event.track_event.has_debug_annotations()) {
-    PrintDebugAnnotations(context_, event.track_event, slice_color,
-                          highlight_color);
-  }
-
-  // TODO(skyostil): Print typed arguments.
-
-  // Print duration for longer events.
-  constexpr uint64_t kNsPerMillisecond = 1000000u;
-  if (event.duration_ns >= 10 * kNsPerMillisecond) {
-    SetColor(context_, kDim);
-    Printf(context_, " +%" PRIu64 "ms", event.duration_ns / kNsPerMillisecond);
-  }
-  SetColor(context_, kReset);
-  Printf(context_, "\n");
-}
-
-// static
-void ConsoleInterceptor::Register() {
-  perfetto::protos::gen::InterceptorDescriptor desc;
-  desc.set_name("console");
-  Interceptor<ConsoleInterceptor>::Register(desc);
-}
-
-// static
-void ConsoleInterceptor::SetOutputFdForTesting(int fd) {
-  g_output_fd_for_testing = fd;
-}
-
-void ConsoleInterceptor::OnSetup(const SetupArgs& args) {
-  int fd = STDOUT_FILENO;
-  if (g_output_fd_for_testing)
-    fd = g_output_fd_for_testing;
-#if !PERFETTO_BUILDFLAG(PERFETTO_OS_WIN) && \
-    !PERFETTO_BUILDFLAG(PERFETTO_OS_WASM)
-  bool use_colors = isatty(fd);
-#else
-  bool use_colors = false;
-#endif
-  protos::pbzero::ConsoleConfig::Decoder config(
-      args.config.interceptor_config().console_config_raw());
-  if (config.has_enable_colors())
-    use_colors = config.enable_colors();
-  if (config.output() == protos::pbzero::ConsoleConfig::OUTPUT_STDOUT) {
-    fd = STDOUT_FILENO;
-  } else if (config.output() == protos::pbzero::ConsoleConfig::OUTPUT_STDERR) {
-    fd = STDERR_FILENO;
-  }
-  fd_ = fd;
-  use_colors_ = use_colors;
-}
-
-void ConsoleInterceptor::OnStart(const StartArgs&) {
-  start_time_ns_ = internal::TrackEventInternal::GetTimeNs();
-}
-
-void ConsoleInterceptor::OnStop(const StopArgs&) {}
-
-// static
-void ConsoleInterceptor::OnTracePacket(InterceptorContext context) {
-  {
-    auto& tls = context.GetThreadLocalState();
-    Delegate delegate(context);
-    perfetto::protos::pbzero::TracePacket::Decoder packet(
-        context.packet_data.data, context.packet_data.size);
-    TrackEventStateTracker::ProcessTracePacket(delegate, tls.sequence_state,
-                                               packet);
-  }  // (Potential) lock scope for session state.
-  Flush(context);
-}
-
-// static
-void ConsoleInterceptor::Printf(InterceptorContext& context,
-                                const char* format,
-                                ...) {
-  auto& tls = context.GetThreadLocalState();
-  ssize_t remaining = static_cast<ssize_t>(tls.message_buffer.size()) -
-                      static_cast<ssize_t>(tls.buffer_pos);
-  int written = 0;
-  if (remaining > 0) {
-    va_list args;
-    va_start(args, format);
-    written = vsnprintf(&tls.message_buffer[tls.buffer_pos],
-                        static_cast<size_t>(remaining), format, args);
-    PERFETTO_DCHECK(written >= 0);
-    va_end(args);
-  }
-
-  // In case of buffer overflow, flush to the fd and write the latest message to
-  // it directly instead.
-  if (remaining <= 0 || written > remaining) {
-    FILE* output = (tls.fd == STDOUT_FILENO) ? stdout : stderr;
-    if (g_output_fd_for_testing) {
-      output = fdopen(dup(g_output_fd_for_testing), "w");
-    }
-    Flush(context);
-    va_list args;
-    va_start(args, format);
-    vfprintf(output, format, args);
-    va_end(args);
-    if (g_output_fd_for_testing) {
-      fclose(output);
-    }
-  } else if (written > 0) {
-    tls.buffer_pos += static_cast<size_t>(written);
-  }
-}
-
-// static
-void ConsoleInterceptor::Flush(InterceptorContext& context) {
-  auto& tls = context.GetThreadLocalState();
-  ssize_t res = base::WriteAll(tls.fd, &tls.message_buffer[0], tls.buffer_pos);
-  PERFETTO_DCHECK(res == static_cast<ssize_t>(tls.buffer_pos));
-  tls.buffer_pos = 0;
-}
-
-// static
-void ConsoleInterceptor::SetColor(InterceptorContext& context,
-                                  const ConsoleColor& color) {
-  auto& tls = context.GetThreadLocalState();
-  if (!tls.use_colors)
-    return;
-  Printf(context, FMT_RGB_SET, color.r, color.g, color.b);
-}
-
-// static
-void ConsoleInterceptor::SetColor(InterceptorContext& context,
-                                  const char* color) {
-  auto& tls = context.GetThreadLocalState();
-  if (!tls.use_colors)
-    return;
-  Printf(context, "%s", color);
-}
-
-// static
-void ConsoleInterceptor::PrintDebugAnnotations(
-    InterceptorContext& context,
-    const protos::pbzero::TrackEvent_Decoder& track_event,
-    const ConsoleColor& slice_color,
-    const ConsoleColor& highlight_color) {
-  SetColor(context, slice_color);
-  Printf(context, "(");
-
-  bool is_first = true;
-  for (auto it = track_event.debug_annotations(); it; it++) {
-    perfetto::protos::pbzero::DebugAnnotation::Decoder annotation(*it);
-    SetColor(context, slice_color);
-    if (!is_first)
-      Printf(context, ", ");
-
-    PrintDebugAnnotationName(context, annotation);
-    Printf(context, ":");
-
-    SetColor(context, highlight_color);
-    PrintDebugAnnotationValue(context, annotation);
-
-    is_first = false;
-  }
-  SetColor(context, slice_color);
-  Printf(context, ")");
-}
-
-// static
-void ConsoleInterceptor::PrintDebugAnnotationName(
-    InterceptorContext& context,
-    const perfetto::protos::pbzero::DebugAnnotation::Decoder& annotation) {
-  auto& tls = context.GetThreadLocalState();
-  protozero::ConstChars name{};
-  if (annotation.name_iid()) {
-    name.data =
-        tls.sequence_state.debug_annotation_names[annotation.name_iid()].data();
-    name.size =
-        tls.sequence_state.debug_annotation_names[annotation.name_iid()].size();
-  } else if (annotation.has_name()) {
-    name.data = annotation.name().data;
-    name.size = annotation.name().size;
-  }
-  Printf(context, "%.*s", static_cast<int>(name.size), name.data);
-}
-
-// static
-void ConsoleInterceptor::PrintDebugAnnotationValue(
-    InterceptorContext& context,
-    const perfetto::protos::pbzero::DebugAnnotation::Decoder& annotation) {
-  if (annotation.has_bool_value()) {
-    Printf(context, "%s", annotation.bool_value() ? "true" : "false");
-  } else if (annotation.has_uint_value()) {
-    Printf(context, "%" PRIu64, annotation.uint_value());
-  } else if (annotation.has_int_value()) {
-    Printf(context, "%" PRId64, annotation.int_value());
-  } else if (annotation.has_double_value()) {
-    Printf(context, "%f", annotation.double_value());
-  } else if (annotation.has_string_value()) {
-    Printf(context, "%.*s", static_cast<int>(annotation.string_value().size),
-           annotation.string_value().data);
-  } else if (annotation.has_pointer_value()) {
-    Printf(context, "%p", reinterpret_cast<void*>(annotation.pointer_value()));
-  } else if (annotation.has_legacy_json_value()) {
-    Printf(context, "%.*s",
-           static_cast<int>(annotation.legacy_json_value().size),
-           annotation.legacy_json_value().data);
-  } else if (annotation.has_dict_entries()) {
-    Printf(context, "{");
-    bool is_first = true;
-    for (auto it = annotation.dict_entries(); it; ++it) {
-      if (!is_first)
-        Printf(context, ", ");
-      perfetto::protos::pbzero::DebugAnnotation::Decoder key_value(*it);
-      PrintDebugAnnotationName(context, key_value);
-      Printf(context, ":");
-      PrintDebugAnnotationValue(context, key_value);
-      is_first = false;
-    }
-    Printf(context, "}");
-  } else if (annotation.has_array_values()) {
-    Printf(context, "[");
-    bool is_first = true;
-    for (auto it = annotation.array_values(); it; ++it) {
-      if (!is_first)
-        Printf(context, ", ");
-      perfetto::protos::pbzero::DebugAnnotation::Decoder key_value(*it);
-      PrintDebugAnnotationValue(context, key_value);
-      is_first = false;
-    }
-    Printf(context, "]");
-  } else {
-    Printf(context, "{}");
-  }
-}
-
-}  // namespace perfetto
-// gen_amalgamated begin source: src/tracing/data_source.cc
-/*
- * Copyright (C) 2019 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-// gen_amalgamated expanded: #include "perfetto/tracing/data_source.h"
-
-namespace perfetto {
-
-DataSourceBase::StopArgs::~StopArgs() = default;
-DataSourceBase::~DataSourceBase() = default;
-void DataSourceBase::OnSetup(const SetupArgs&) {}
-void DataSourceBase::OnStart(const StartArgs&) {}
-void DataSourceBase::OnStop(const StopArgs&) {}
-
-}  // namespace perfetto
-// gen_amalgamated begin source: src/tracing/debug_annotation.cc
-/*
- * Copyright (C) 2019 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-// gen_amalgamated expanded: #include "perfetto/tracing/debug_annotation.h"
-
-// gen_amalgamated expanded: #include "perfetto/tracing/traced_value.h"
-// gen_amalgamated expanded: #include "protos/perfetto/trace/track_event/debug_annotation.pbzero.h"
-
-namespace perfetto {
-
-DebugAnnotation::~DebugAnnotation() = default;
-
-void DebugAnnotation::WriteIntoTracedValue(TracedValue context) const {
-  Add(context.context_);
-}
-
-}  // namespace perfetto
-// gen_amalgamated begin source: src/tracing/event_context.cc
-/*
- * Copyright (C) 2019 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-// gen_amalgamated expanded: #include "perfetto/tracing/event_context.h"
-
-// gen_amalgamated expanded: #include "protos/perfetto/trace/interned_data/interned_data.pbzero.h"
-// gen_amalgamated expanded: #include "protos/perfetto/trace/track_event/track_event.pbzero.h"
-
-namespace perfetto {
-
-EventContext::EventContext(
-    EventContext::TracePacketHandle trace_packet,
-    internal::TrackEventIncrementalState* incremental_state)
-    : trace_packet_(std::move(trace_packet)),
-      event_(trace_packet_->set_track_event()),
-      incremental_state_(incremental_state) {}
-
-EventContext::~EventContext() {
-  if (!trace_packet_)
-    return;
-
-  // When the track event is finalized (i.e., the context is destroyed), we
-  // should flush any newly seen interned data to the trace. The data has
-  // earlier been written to a heap allocated protobuf message
-  // (|serialized_interned_data|). Here we just need to flush it to the main
-  // trace.
-  auto& serialized_interned_data = incremental_state_->serialized_interned_data;
-  if (PERFETTO_LIKELY(serialized_interned_data.empty()))
-    return;
-
-  auto ranges = serialized_interned_data.GetRanges();
-  trace_packet_->AppendScatteredBytes(
-      perfetto::protos::pbzero::TracePacket::kInternedDataFieldNumber,
-      &ranges[0], ranges.size());
-
-  // Reset the message but keep one buffer allocated for future use.
-  serialized_interned_data.Reset();
-}
-
-}  // namespace perfetto
-// gen_amalgamated begin source: src/tracing/interceptor.cc
-/*
- * Copyright (C) 2020 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-// gen_amalgamated expanded: #include "perfetto/tracing/interceptor.h"
-
-// gen_amalgamated expanded: #include "perfetto/tracing/internal/tracing_muxer.h"
-
-namespace perfetto {
-
-InterceptorBase::~InterceptorBase() = default;
-InterceptorBase::ThreadLocalState::~ThreadLocalState() = default;
-
-// static
-void InterceptorBase::RegisterImpl(
-    const InterceptorDescriptor& descriptor,
-    std::function<std::unique_ptr<InterceptorBase>()> factory,
-    InterceptorBase::TLSFactory tls_factory,
-    InterceptorBase::TracePacketCallback on_trace_packet) {
-  auto* tracing_impl = internal::TracingMuxer::Get();
-  tracing_impl->RegisterInterceptor(descriptor, factory, tls_factory,
-                                    on_trace_packet);
-}
-
-}  // namespace perfetto
-// gen_amalgamated begin source: src/tracing/internal/checked_scope.cc
-/*
- * Copyright (C) 2021 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-// gen_amalgamated expanded: #include "perfetto/tracing/internal/checked_scope.h"
-
-#include <utility>
-
-namespace perfetto {
-namespace internal {
-
-#if PERFETTO_DCHECK_IS_ON()
-CheckedScope::CheckedScope(CheckedScope* parent_scope)
-    : parent_scope_(parent_scope) {
-  if (parent_scope_) {
-    PERFETTO_DCHECK(parent_scope_->is_active());
-    parent_scope_->set_is_active(false);
-  }
-}
-
-CheckedScope::~CheckedScope() {
-  Reset();
-}
-
-void CheckedScope::Reset() {
-  if (!is_active_) {
-    // The only case when inactive scope could be destroyed is when Reset() was
-    // called explicitly or the contents of the object were moved away.
-    PERFETTO_DCHECK(deleted_);
-    return;
-  }
-  is_active_ = false;
-  deleted_ = true;
-  if (parent_scope_)
-    parent_scope_->set_is_active(true);
-}
-
-CheckedScope::CheckedScope(CheckedScope&& other) {
-  *this = std::move(other);
-}
-
-CheckedScope& CheckedScope::operator=(CheckedScope&& other) {
-  is_active_ = other.is_active_;
-  parent_scope_ = other.parent_scope_;
-  deleted_ = other.deleted_;
-
-  other.is_active_ = false;
-  other.parent_scope_ = nullptr;
-  other.deleted_ = true;
-
-  return *this;
-}
-#endif
-
-}  // namespace internal
-}  // namespace perfetto
-// gen_amalgamated begin source: src/tracing/internal/interceptor_trace_writer.cc
-// gen_amalgamated begin header: include/perfetto/tracing/internal/interceptor_trace_writer.h
-/*
- * Copyright (C) 2020 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef INCLUDE_PERFETTO_TRACING_INTERNAL_INTERCEPTOR_TRACE_WRITER_H_
-#define INCLUDE_PERFETTO_TRACING_INTERNAL_INTERCEPTOR_TRACE_WRITER_H_
-
-// gen_amalgamated expanded: #include "perfetto/protozero/scattered_heap_buffer.h"
-// gen_amalgamated expanded: #include "perfetto/tracing/interceptor.h"
-// gen_amalgamated expanded: #include "perfetto/tracing/internal/basic_types.h"
-// gen_amalgamated expanded: #include "perfetto/tracing/trace_writer_base.h"
-// gen_amalgamated expanded: #include "protos/perfetto/trace/trace_packet.pbzero.h"
-
-namespace perfetto {
-namespace internal {
-
-// A heap-backed trace writer used to reroute trace packets to an interceptor.
-class InterceptorTraceWriter : public TraceWriterBase {
- public:
-  InterceptorTraceWriter(std::unique_ptr<InterceptorBase::ThreadLocalState> tls,
-                         InterceptorBase::TracePacketCallback packet_callback,
-                         DataSourceStaticState* static_state,
-                         uint32_t instance_index);
-  ~InterceptorTraceWriter() override;
-
-  // TraceWriterBase implementation.
-  protozero::MessageHandle<protos::pbzero::TracePacket> NewTracePacket()
-      override;
-  void Flush(std::function<void()> callback = {}) override;
-  uint64_t written() const override;
-
- private:
-  std::unique_ptr<InterceptorBase::ThreadLocalState> tls_;
-  InterceptorBase::TracePacketCallback packet_callback_;
-
-  protozero::HeapBuffered<protos::pbzero::TracePacket> cur_packet_;
-  uint64_t bytes_written_ = 0;
-
-  // Static state of the data source we are intercepting.
-  DataSourceStaticState* const static_state_;
-
-  // Index of the data source tracing session which we are intercepting
-  // (0...kMaxDataSourceInstances - 1). Used to look up this interceptor's
-  // session state (i.e., the Interceptor class instance) in the
-  // DataSourceStaticState::instances array.
-  const uint32_t instance_index_;
-
-  const uint32_t sequence_id_;
-
-  static std::atomic<uint32_t> next_sequence_id_;
-};
-
-}  // namespace internal
-}  // namespace perfetto
-
-#endif  // INCLUDE_PERFETTO_TRACING_INTERNAL_INTERCEPTOR_TRACE_WRITER_H_
-/*
- * Copyright (C) 2020 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-// gen_amalgamated expanded: #include "perfetto/tracing/internal/interceptor_trace_writer.h"
-
-// gen_amalgamated expanded: #include "perfetto/ext/tracing/core/trace_writer.h"
-
-namespace perfetto {
-namespace internal {
-
-// static
-std::atomic<uint32_t> InterceptorTraceWriter::next_sequence_id_{};
-
-InterceptorTraceWriter::InterceptorTraceWriter(
-    std::unique_ptr<InterceptorBase::ThreadLocalState> tls,
-    InterceptorBase::TracePacketCallback packet_callback,
-    DataSourceStaticState* static_state,
-    uint32_t instance_index)
-    : tls_(std::move(tls)),
-      packet_callback_(std::move(packet_callback)),
-      static_state_(static_state),
-      instance_index_(instance_index),
-      sequence_id_(++next_sequence_id_) {}
-
-InterceptorTraceWriter::~InterceptorTraceWriter() = default;
-
-protozero::MessageHandle<protos::pbzero::TracePacket>
-InterceptorTraceWriter::NewTracePacket() {
-  Flush();
-  auto packet = TraceWriter::TracePacketHandle(cur_packet_.get());
-  packet->set_trusted_packet_sequence_id(sequence_id_);
-  return packet;
-}
-
-void InterceptorTraceWriter::Flush(std::function<void()> callback) {
-  if (!cur_packet_.empty()) {
-    InterceptorBase::TracePacketCallbackArgs args{};
-    args.static_state = static_state_;
-    args.instance_index = instance_index_;
-    args.tls = tls_.get();
-
-    const auto& slices = cur_packet_.GetSlices();
-    if (slices.size() == 1) {
-      // Fast path: the current packet fits into a single slice.
-      auto slice_range = slices.begin()->GetUsedRange();
-      args.packet_data = protozero::ConstBytes{
-          slice_range.begin,
-          static_cast<size_t>(slice_range.end - slice_range.begin)};
-      bytes_written_ += static_cast<uint64_t>(args.packet_data.size);
-      packet_callback_(std::move(args));
-    } else {
-      // Fallback: stitch together multiple slices.
-      auto stitched_data = cur_packet_.SerializeAsArray();
-      args.packet_data =
-          protozero::ConstBytes{stitched_data.data(), stitched_data.size()};
-      bytes_written_ += static_cast<uint64_t>(stitched_data.size());
-      packet_callback_(std::move(args));
-    }
-    cur_packet_.Reset();
-  }
-  if (callback)
-    callback();
-}
-
-uint64_t InterceptorTraceWriter::written() const {
-  return bytes_written_;
-}
-
-}  // namespace internal
-}  // namespace perfetto
-// gen_amalgamated begin source: src/tracing/internal/tracing_backend_fake.cc
-// gen_amalgamated begin header: include/perfetto/tracing/internal/tracing_backend_fake.h
-/*
- * Copyright (C) 2021 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef INCLUDE_PERFETTO_TRACING_INTERNAL_TRACING_BACKEND_FAKE_H_
-#define INCLUDE_PERFETTO_TRACING_INTERNAL_TRACING_BACKEND_FAKE_H_
-
-// gen_amalgamated expanded: #include "perfetto/base/export.h"
-// gen_amalgamated expanded: #include "perfetto/tracing/tracing_backend.h"
-
-namespace perfetto {
-namespace internal {
-
-// A built-in implementation of TracingBackend that fails any attempt to create
-// a tracing session.
-class PERFETTO_EXPORT TracingBackendFake : public TracingBackend {
- public:
-  static TracingBackend* GetInstance();
-
-  // TracingBackend implementation.
-  std::unique_ptr<ProducerEndpoint> ConnectProducer(
-      const ConnectProducerArgs&) override;
-  std::unique_ptr<ConsumerEndpoint> ConnectConsumer(
-      const ConnectConsumerArgs&) override;
-
- private:
-  TracingBackendFake();
-};
-
-}  // namespace internal
-}  // namespace perfetto
-
-#endif  // INCLUDE_PERFETTO_TRACING_INTERNAL_TRACING_BACKEND_FAKE_H_
-/*
- * Copyright (C) 2021 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-// gen_amalgamated expanded: #include "perfetto/tracing/internal/tracing_backend_fake.h"
-
-// gen_amalgamated expanded: #include "perfetto/base/task_runner.h"
-// gen_amalgamated expanded: #include "perfetto/ext/base/weak_ptr.h"
-// gen_amalgamated expanded: #include "perfetto/ext/tracing/core/consumer.h"
-// gen_amalgamated expanded: #include "perfetto/ext/tracing/core/producer.h"
-// gen_amalgamated expanded: #include "perfetto/ext/tracing/core/trace_writer.h"
-// gen_amalgamated expanded: #include "perfetto/ext/tracing/core/tracing_service.h"
-
-namespace perfetto {
-namespace internal {
-
-namespace {
-
-class UnsupportedProducerEndpoint : public ProducerEndpoint {
- public:
-  UnsupportedProducerEndpoint(Producer* producer, base::TaskRunner* task_runner)
-      : producer_(producer), task_runner_(task_runner) {
-    // The SDK will attempt to reconnect the producer, so instead we allow it
-    // to connect successfully, but never start any sessions.
-    auto weak_ptr = weak_ptr_factory_.GetWeakPtr();
-    task_runner_->PostTask([weak_ptr] {
-      if (weak_ptr)
-        weak_ptr->producer_->OnConnect();
-    });
-  }
-  ~UnsupportedProducerEndpoint() override { producer_->OnDisconnect(); }
-
-  void RegisterDataSource(const DataSourceDescriptor&) override {}
-  void UnregisterDataSource(const std::string& /*name*/) override {}
-
-  void RegisterTraceWriter(uint32_t /*writer_id*/,
-                           uint32_t /*target_buffer*/) override {}
-  void UnregisterTraceWriter(uint32_t /*writer_id*/) override {}
-
-  void CommitData(const CommitDataRequest&,
-                  CommitDataCallback callback = {}) override {
-    callback();
-  }
-
-  SharedMemory* shared_memory() const override { return nullptr; }
-  size_t shared_buffer_page_size_kb() const override { return 0; }
-
-  std::unique_ptr<TraceWriter> CreateTraceWriter(
-      BufferID /*target_buffer*/,
-      BufferExhaustedPolicy = BufferExhaustedPolicy::kDefault) override {
-    return nullptr;
-  }
-
-  SharedMemoryArbiter* MaybeSharedMemoryArbiter() override { return nullptr; }
-  bool IsShmemProvidedByProducer() const override { return false; }
-
-  void NotifyFlushComplete(FlushRequestID) override {}
-  void NotifyDataSourceStarted(DataSourceInstanceID) override {}
-  void NotifyDataSourceStopped(DataSourceInstanceID) override {}
-  void ActivateTriggers(const std::vector<std::string>&) override {}
-
-  void Sync(std::function<void()> callback) override { callback(); }
-
- private:
-  Producer* const producer_;
-  base::TaskRunner* const task_runner_;
-  base::WeakPtrFactory<UnsupportedProducerEndpoint> weak_ptr_factory_{
-      this};  // Keep last.
-};
-
-class UnsupportedConsumerEndpoint : public ConsumerEndpoint {
- public:
-  UnsupportedConsumerEndpoint(Consumer* consumer, base::TaskRunner* task_runner)
-      : consumer_(consumer), task_runner_(task_runner) {
-    // The SDK will not to reconnect the consumer, so we just disconnect it
-    // immediately, which will cancel the tracing session.
-    auto weak_this = weak_ptr_factory_.GetWeakPtr();
-    task_runner_->PostTask([weak_this] {
-      if (weak_this)
-        weak_this->consumer_->OnDisconnect();
-    });
-  }
-  ~UnsupportedConsumerEndpoint() override = default;
-
-  void EnableTracing(const TraceConfig&,
-                     base::ScopedFile = base::ScopedFile()) override {}
-  void ChangeTraceConfig(const TraceConfig&) override {}
-
-  void StartTracing() override {}
-  void DisableTracing() override {}
-
-  void Flush(uint32_t /*timeout_ms*/, FlushCallback callback) override {
-    callback(/*success=*/false);
-  }
-
-  void ReadBuffers() override {}
-  void FreeBuffers() override {}
-
-  void Detach(const std::string& /*key*/) override {}
-  void Attach(const std::string& /*key*/) override {}
-
-  void GetTraceStats() override {}
-  void ObserveEvents(uint32_t /*events_mask*/) override {}
-  void QueryServiceState(QueryServiceStateCallback) override {}
-  void QueryCapabilities(QueryCapabilitiesCallback) override {}
-
-  void SaveTraceForBugreport(SaveTraceForBugreportCallback) override {}
-
- private:
-  Consumer* const consumer_;
-  base::TaskRunner* const task_runner_;
-  base::WeakPtrFactory<UnsupportedConsumerEndpoint> weak_ptr_factory_{
-      this};  // Keep last.
-};
-
-}  // namespace
-
-// static
-TracingBackend* TracingBackendFake::GetInstance() {
-  static auto* instance = new TracingBackendFake();
-  return instance;
-}
-
-TracingBackendFake::TracingBackendFake() = default;
-
-std::unique_ptr<ProducerEndpoint> TracingBackendFake::ConnectProducer(
-    const ConnectProducerArgs& args) {
-  return std::unique_ptr<ProducerEndpoint>(
-      new UnsupportedProducerEndpoint(args.producer, args.task_runner));
-}
-
-std::unique_ptr<ConsumerEndpoint> TracingBackendFake::ConnectConsumer(
-    const ConnectConsumerArgs& args) {
-  return std::unique_ptr<ConsumerEndpoint>(
-      new UnsupportedConsumerEndpoint(args.consumer, args.task_runner));
-}
-
-}  // namespace internal
-}  // namespace perfetto
-// gen_amalgamated begin source: src/tracing/internal/tracing_muxer_fake.cc
-// gen_amalgamated begin header: src/tracing/internal/tracing_muxer_fake.h
-/*
- * Copyright (C) 2021 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef SRC_TRACING_INTERNAL_TRACING_MUXER_FAKE_H_
-#define SRC_TRACING_INTERNAL_TRACING_MUXER_FAKE_H_
-
-// gen_amalgamated expanded: #include "perfetto/base/compiler.h"
-// gen_amalgamated expanded: #include "perfetto/tracing/internal/tracing_muxer.h"
-
-namespace perfetto {
-namespace internal {
-
-// An always-fail implementation of TracingMuxer. Before tracing has been
-// initialiazed, all muxer operations will route here and fail with a helpful
-// error message. This is to avoid introducing null checks in
-// performance-critical parts of the codebase.
-class TracingMuxerFake : public TracingMuxer {
-  class FakePlatform : public Platform {
-   public:
-    ~FakePlatform() override;
-    ThreadLocalObject* GetOrCreateThreadLocalObject() override;
-    std::unique_ptr<base::TaskRunner> CreateTaskRunner(
-        const CreateTaskRunnerArgs&) override;
-    std::string GetCurrentProcessName() override;
-
-    static FakePlatform instance;
-  };
-
- public:
-  TracingMuxerFake() : TracingMuxer(&FakePlatform::instance) {}
-
-  static constexpr TracingMuxerFake* Get() {
-#if PERFETTO_HAS_NO_DESTROY()
-    return &instance;
-#else
-    return nullptr;
-#endif
-  }
-
-  // TracingMuxer implementation.
-  bool RegisterDataSource(const DataSourceDescriptor&,
-                          DataSourceFactory,
-                          DataSourceStaticState*) override;
-  std::unique_ptr<TraceWriterBase> CreateTraceWriter(
-      DataSourceStaticState*,
-      uint32_t data_source_instance_index,
-      DataSourceState*,
-      BufferExhaustedPolicy buffer_exhausted_policy) override;
-  void DestroyStoppedTraceWritersForCurrentThread() override;
-  void RegisterInterceptor(const InterceptorDescriptor&,
-                           InterceptorFactory,
-                           InterceptorBase::TLSFactory,
-                           InterceptorBase::TracePacketCallback) override;
-
- private:
-  static TracingMuxerFake instance;
-};
-
-}  // namespace internal
-}  // namespace perfetto
-
-#endif  // SRC_TRACING_INTERNAL_TRACING_MUXER_FAKE_H_
-/*
- * Copyright (C) 2021 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-// gen_amalgamated expanded: #include "src/tracing/internal/tracing_muxer_fake.h"
-
-namespace perfetto {
-namespace internal {
-namespace {
-
-PERFETTO_NORETURN void FailUninitialized() {
-  PERFETTO_FATAL(
-      "Tracing not initialized. Call perfetto::Tracing::Initialize() first.");
-}
-
-}  // namespace
-
-#if PERFETTO_HAS_NO_DESTROY()
-// static
-PERFETTO_NO_DESTROY TracingMuxerFake::FakePlatform
-    TracingMuxerFake::FakePlatform::instance{};
-// static
-PERFETTO_NO_DESTROY TracingMuxerFake TracingMuxerFake::instance{};
-#endif  // PERFETTO_HAS_NO_DESTROY()
-
-TracingMuxerFake::FakePlatform::~FakePlatform() = default;
-
-Platform::ThreadLocalObject*
-TracingMuxerFake::FakePlatform::GetOrCreateThreadLocalObject() {
-  FailUninitialized();
-}
-
-std::unique_ptr<base::TaskRunner>
-TracingMuxerFake::FakePlatform::CreateTaskRunner(const CreateTaskRunnerArgs&) {
-  FailUninitialized();
-}
-
-std::string TracingMuxerFake::FakePlatform::GetCurrentProcessName() {
-  FailUninitialized();
-}
-
-bool TracingMuxerFake::RegisterDataSource(const DataSourceDescriptor&,
-                                          DataSourceFactory,
-                                          DataSourceStaticState*) {
-  FailUninitialized();
-}
-
-std::unique_ptr<TraceWriterBase> TracingMuxerFake::CreateTraceWriter(
-    DataSourceStaticState*,
-    uint32_t,
-    DataSourceState*,
-    BufferExhaustedPolicy) {
-  FailUninitialized();
-}
-
-void TracingMuxerFake::DestroyStoppedTraceWritersForCurrentThread() {
-  FailUninitialized();
-}
-
-void TracingMuxerFake::RegisterInterceptor(
-    const InterceptorDescriptor&,
-    InterceptorFactory,
-    InterceptorBase::TLSFactory,
-    InterceptorBase::TracePacketCallback) {
-  FailUninitialized();
-}
-
-}  // namespace internal
-}  // namespace perfetto
-// gen_amalgamated begin source: src/tracing/internal/tracing_muxer_impl.cc
-// gen_amalgamated begin header: src/tracing/internal/tracing_muxer_impl.h
-/*
- * Copyright (C) 2019 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef SRC_TRACING_INTERNAL_TRACING_MUXER_IMPL_H_
-#define SRC_TRACING_INTERNAL_TRACING_MUXER_IMPL_H_
-
-#include <stddef.h>
-#include <stdint.h>
-
-#include <array>
-#include <atomic>
-#include <bitset>
-#include <list>
-#include <map>
-#include <memory>
-#include <vector>
-
-// gen_amalgamated expanded: #include "perfetto/ext/base/scoped_file.h"
-// gen_amalgamated expanded: #include "perfetto/ext/base/thread_checker.h"
-// gen_amalgamated expanded: #include "perfetto/ext/tracing/core/basic_types.h"
-// gen_amalgamated expanded: #include "perfetto/ext/tracing/core/consumer.h"
-// gen_amalgamated expanded: #include "perfetto/ext/tracing/core/producer.h"
-// gen_amalgamated expanded: #include "perfetto/tracing/core/data_source_descriptor.h"
-// gen_amalgamated expanded: #include "perfetto/tracing/core/forward_decls.h"
-// gen_amalgamated expanded: #include "perfetto/tracing/core/trace_config.h"
-// gen_amalgamated expanded: #include "perfetto/tracing/internal/basic_types.h"
-// gen_amalgamated expanded: #include "perfetto/tracing/internal/tracing_muxer.h"
-// gen_amalgamated expanded: #include "perfetto/tracing/tracing.h"
-
-// gen_amalgamated expanded: #include "protos/perfetto/common/interceptor_descriptor.gen.h"
-
-namespace perfetto {
-
-class ConsumerEndpoint;
-class DataSourceBase;
-class ProducerEndpoint;
-class TraceWriterBase;
-class TracingBackend;
-class TracingSession;
-struct TracingInitArgs;
-
-namespace base {
-class TaskRunner;
-}
-
-namespace internal {
-
-struct DataSourceStaticState;
-
-// This class acts as a bridge between the public API and the TracingBackend(s).
-// It exposes a simplified view of the world to the API methods handling all the
-// bookkeeping to map data source instances and trace writers to the various
-// backends. It deals with N data sources, M backends (1 backend == 1 tracing
-// service == 1 producer connection) and T concurrent tracing sessions.
-//
-// Handing data source registration and start/stop flows [producer side]:
-// ----------------------------------------------------------------------
-// 1. The API client subclasses perfetto::DataSource and calls
-//    DataSource::Register<MyDataSource>(). In turn this calls into the
-//    TracingMuxer.
-// 2. The tracing muxer iterates through all the backends (1 backend == 1
-//    service == 1 producer connection) and registers the data source on each
-//    backend.
-// 3. When any (services behind a) backend starts tracing and requests to start
-//    that specific data source, the TracingMuxerImpl constructs a new instance
-//    of MyDataSource and calls the OnStart() method.
-//
-// Controlling trace and retrieving trace data [consumer side]:
-// ------------------------------------------------------------
-// 1. The API client calls Tracing::NewTrace(), returns a RAII TracingSession
-//    object.
-// 2. NewTrace() calls into internal::TracingMuxer(Impl). TracingMuxer
-//    subclasses the TracingSession object (TracingSessionImpl) and returns it.
-// 3. The tracing muxer identifies the backend (according to the args passed to
-//    NewTrace), creates a new Consumer and connects to it.
-// 4. When the API client calls Start()/Stop()/ReadTrace() methods, the
-//    TracingMuxer forwards them to the consumer associated to the
-//    TracingSession. Likewise for callbacks coming from the consumer-side of
-//    the service.
-class TracingMuxerImpl : public TracingMuxer {
- public:
-  // This is different than TracingSessionID because it's global across all
-  // backends. TracingSessionID is global only within the scope of one service.
-  using TracingSessionGlobalID = uint64_t;
-
-  static void InitializeInstance(const TracingInitArgs&);
-
-  // TracingMuxer implementation.
-  bool RegisterDataSource(const DataSourceDescriptor&,
-                          DataSourceFactory,
-                          DataSourceStaticState*) override;
-  std::unique_ptr<TraceWriterBase> CreateTraceWriter(
-      DataSourceStaticState*,
-      uint32_t data_source_instance_index,
-      DataSourceState*,
-      BufferExhaustedPolicy buffer_exhausted_policy) override;
-  void DestroyStoppedTraceWritersForCurrentThread() override;
-  void RegisterInterceptor(const InterceptorDescriptor&,
-                           InterceptorFactory,
-                           InterceptorBase::TLSFactory,
-                           InterceptorBase::TracePacketCallback) override;
-
-  std::unique_ptr<TracingSession> CreateTracingSession(BackendType);
-
-  // Producer-side bookkeeping methods.
-  void UpdateDataSourcesOnAllBackends();
-  void SetupDataSource(TracingBackendId,
-                       uint32_t backend_connection_id,
-                       DataSourceInstanceID,
-                       const DataSourceConfig&);
-  void StartDataSource(TracingBackendId, DataSourceInstanceID);
-  void StopDataSource_AsyncBegin(TracingBackendId, DataSourceInstanceID);
-  void StopDataSource_AsyncEnd(TracingBackendId, DataSourceInstanceID);
-  void ClearDataSourceIncrementalState(TracingBackendId, DataSourceInstanceID);
-  void SyncProducersForTesting();
-
-  // Consumer-side bookkeeping methods.
-  void SetupTracingSession(TracingSessionGlobalID,
-                           const std::shared_ptr<TraceConfig>&,
-                           base::ScopedFile trace_fd = base::ScopedFile());
-  void StartTracingSession(TracingSessionGlobalID);
-  void ChangeTracingSessionConfig(TracingSessionGlobalID, const TraceConfig&);
-  void StopTracingSession(TracingSessionGlobalID);
-  void DestroyTracingSession(TracingSessionGlobalID);
-  void FlushTracingSession(TracingSessionGlobalID,
-                           uint32_t,
-                           std::function<void(bool)>);
-  void ReadTracingSessionData(
-      TracingSessionGlobalID,
-      std::function<void(TracingSession::ReadTraceCallbackArgs)>);
-  void GetTraceStats(TracingSessionGlobalID,
-                     TracingSession::GetTraceStatsCallback);
-  void QueryServiceState(TracingSessionGlobalID,
-                         TracingSession::QueryServiceStateCallback);
-
-  // Sets the batching period to |batch_commits_duration_ms| on the backends
-  // with type |backend_type|.
-  void SetBatchCommitsDurationForTesting(uint32_t batch_commits_duration_ms,
-                                         BackendType backend_type);
-
-  // Enables direct SMB patching on the backends with type |backend_type| (see
-  // SharedMemoryArbiter::EnableDirectSMBPatching). Returns true if the
-  // operation succeeded for all backends with type |backend_type|, false
-  // otherwise.
-  bool EnableDirectSMBPatchingForTesting(BackendType backend_type);
-
-  void SetMaxProducerReconnectionsForTesting(uint32_t count);
-
- private:
-  // For each TracingBackend we create and register one ProducerImpl instance.
-  // This talks to the producer-side of the service, gets start/stop requests
-  // from it and routes them to the registered data sources.
-  // One ProducerImpl == one backend == one tracing service.
-  // This class is needed to disambiguate callbacks coming from different
-  // services. TracingMuxerImpl can't directly implement the Producer interface
-  // because the Producer virtual methods don't allow to identify the service.
-  class ProducerImpl : public Producer {
-   public:
-    ProducerImpl(TracingMuxerImpl*,
-                 TracingBackendId,
-                 uint32_t shmem_batch_commits_duration_ms);
-    ~ProducerImpl() override;
-
-    void Initialize(std::unique_ptr<ProducerEndpoint> endpoint);
-    void RegisterDataSource(const DataSourceDescriptor&,
-                            DataSourceFactory,
-                            DataSourceStaticState*);
-
-    // perfetto::Producer implementation.
-    void OnConnect() override;
-    void OnDisconnect() override;
-    void OnTracingSetup() override;
-    void SetupDataSource(DataSourceInstanceID,
-                         const DataSourceConfig&) override;
-    void StartDataSource(DataSourceInstanceID,
-                         const DataSourceConfig&) override;
-    void StopDataSource(DataSourceInstanceID) override;
-    void Flush(FlushRequestID, const DataSourceInstanceID*, size_t) override;
-    void ClearIncrementalState(const DataSourceInstanceID*, size_t) override;
-
-    void SweepDeadServices();
-
-    PERFETTO_THREAD_CHECKER(thread_checker_)
-    TracingMuxerImpl* const muxer_;
-    TracingBackendId const backend_id_;
-    bool connected_ = false;
-    uint32_t connection_id_ = 0;
-
-    const uint32_t shmem_batch_commits_duration_ms_ = 0;
-
-    // Set of data sources that have been actually registered on this producer.
-    // This can be a subset of the global |data_sources_|, because data sources
-    // can register before the producer is fully connected.
-    std::bitset<kMaxDataSources> registered_data_sources_{};
-
-    // A collection of disconnected service endpoints. Since trace writers on
-    // arbitrary threads might continue writing data to disconnected services,
-    // we keep the old services around and periodically try to clean up ones
-    // that no longer have any writers (see SweepDeadServices).
-    std::list<std::shared_ptr<ProducerEndpoint>> dead_services_;
-
-    // The currently active service endpoint is maintained as an atomic shared
-    // pointer so it won't get deleted from underneath threads that are creating
-    // trace writers. At any given time one endpoint can be shared (and thus
-    // kept alive) by the |service_| pointer, an entry in |dead_services_| and
-    // as a pointer on the stack in CreateTraceWriter() (on an arbitrary
-    // thread). The endpoint is never shared outside ProducerImpl itself.
-    //
-    // WARNING: Any *write* access to this variable or any *read* access from a
-    // non-muxer thread must be done through std::atomic_{load,store} to avoid
-    // data races.
-    std::shared_ptr<ProducerEndpoint> service_;  // Keep last.
-  };
-
-  // For each TracingSession created by the API client (Tracing::NewTrace() we
-  // create and register one ConsumerImpl instance.
-  // This talks to the consumer-side of the service, gets end-of-trace and
-  // on-trace-data callbacks and routes them to the API client callbacks.
-  // This class is needed to disambiguate callbacks coming from different
-  // tracing sessions.
-  class ConsumerImpl : public Consumer {
-   public:
-    ConsumerImpl(TracingMuxerImpl*,
-                 BackendType,
-                 TracingBackendId,
-                 TracingSessionGlobalID);
-    ~ConsumerImpl() override;
-
-    void Initialize(std::unique_ptr<ConsumerEndpoint> endpoint);
-
-    // perfetto::Consumer implementation.
-    void OnConnect() override;
-    void OnDisconnect() override;
-    void OnTracingDisabled(const std::string& error) override;
-    void OnTraceData(std::vector<TracePacket>, bool has_more) override;
-    void OnDetach(bool success) override;
-    void OnAttach(bool success, const TraceConfig&) override;
-    void OnTraceStats(bool success, const TraceStats&) override;
-    void OnObservableEvents(const ObservableEvents&) override;
-
-    void NotifyStartComplete();
-    void NotifyError(const TracingError&);
-    void NotifyStopComplete();
-
-    // Will eventually inform the |muxer_| when it is safe to remove |this|.
-    void Disconnect();
-
-    TracingMuxerImpl* const muxer_;
-    BackendType const backend_type_;
-    TracingBackendId const backend_id_;
-    TracingSessionGlobalID const session_id_;
-    bool connected_ = false;
-
-    // This is to handle the case where the Setup call from the API client
-    // arrives before the consumer has connected. In this case we keep around
-    // the config and check if we have it after connection.
-    bool start_pending_ = false;
-
-    // Similarly if the session is stopped before the consumer was connected, we
-    // need to wait until the session has started before stopping it.
-    bool stop_pending_ = false;
-
-    // Similarly we need to buffer a call to get trace statistics if the
-    // consumer wasn't connected yet.
-    bool get_trace_stats_pending_ = false;
-
-    // Whether this session was already stopped. This will happen in response to
-    // Stop{,Blocking}, but also if the service stops the session for us
-    // automatically (e.g., when there are no data sources).
-    bool stopped_ = false;
-
-    // shared_ptr because it's posted across threads. This is to avoid copying
-    // it more than once.
-    std::shared_ptr<TraceConfig> trace_config_;
-    base::ScopedFile trace_fd_;
-
-    // If the API client passes a callback to start, we should invoke this when
-    // NotifyStartComplete() is invoked.
-    std::function<void()> start_complete_callback_;
-
-    // An internal callback used to implement StartBlocking().
-    std::function<void()> blocking_start_complete_callback_;
-
-    // If the API client passes a callback to get notification about the
-    // errors, we should invoke this when NotifyError() is invoked.
-    std::function<void(TracingError)> error_callback_;
-
-    // If the API client passes a callback to stop, we should invoke this when
-    // OnTracingDisabled() is invoked.
-    std::function<void()> stop_complete_callback_;
-
-    // An internal callback used to implement StopBlocking().
-    std::function<void()> blocking_stop_complete_callback_;
-
-    // Callback passed to ReadTrace().
-    std::function<void(TracingSession::ReadTraceCallbackArgs)>
-        read_trace_callback_;
-
-    // Callback passed to GetTraceStats().
-    TracingSession::GetTraceStatsCallback get_trace_stats_callback_;
-
-    // Callback for a pending call to QueryServiceState().
-    TracingSession::QueryServiceStateCallback query_service_state_callback_;
-
-    // The states of all data sources in this tracing session. |true| means the
-    // data source has started tracing.
-    using DataSourceHandle = std::pair<std::string, std::string>;
-    std::map<DataSourceHandle, bool> data_source_states_;
-
-    std::unique_ptr<ConsumerEndpoint> service_;  // Keep before last.
-    PERFETTO_THREAD_CHECKER(thread_checker_)     // Keep last.
-  };
-
-  // This object is returned to API clients when they call
-  // Tracing::CreateTracingSession().
-  class TracingSessionImpl : public TracingSession {
-   public:
-    TracingSessionImpl(TracingMuxerImpl*, TracingSessionGlobalID, BackendType);
-    ~TracingSessionImpl() override;
-    void Setup(const TraceConfig&, int fd) override;
-    void Start() override;
-    void StartBlocking() override;
-    void SetOnStartCallback(std::function<void()>) override;
-    void SetOnErrorCallback(std::function<void(TracingError)>) override;
-    void Stop() override;
-    void StopBlocking() override;
-    void Flush(std::function<void(bool)>, uint32_t timeout_ms) override;
-    void ReadTrace(ReadTraceCallback) override;
-    void SetOnStopCallback(std::function<void()>) override;
-    void GetTraceStats(GetTraceStatsCallback) override;
-    void QueryServiceState(QueryServiceStateCallback) override;
-    void ChangeTraceConfig(const TraceConfig&) override;
-
-   private:
-    TracingMuxerImpl* const muxer_;
-    TracingSessionGlobalID const session_id_;
-    BackendType const backend_type_;
-  };
-
-  struct RegisteredDataSource {
-    DataSourceDescriptor descriptor;
-    DataSourceFactory factory{};
-    DataSourceStaticState* static_state = nullptr;
-  };
-
-  struct RegisteredInterceptor {
-    protos::gen::InterceptorDescriptor descriptor;
-    InterceptorFactory factory{};
-    InterceptorBase::TLSFactory tls_factory{};
-    InterceptorBase::TracePacketCallback packet_callback{};
-  };
-
-  struct RegisteredBackend {
-    // Backends are supposed to have static lifetime.
-    TracingBackend* backend = nullptr;
-    TracingBackendId id = 0;
-    BackendType type{};
-
-    TracingBackend::ConnectProducerArgs producer_conn_args;
-    std::unique_ptr<ProducerImpl> producer;
-
-    // The calling code can request more than one concurrently active tracing
-    // session for the same backend. We need to create one consumer per session.
-    std::vector<std::unique_ptr<ConsumerImpl>> consumers;
-  };
-
-  explicit TracingMuxerImpl(const TracingInitArgs&);
-  void Initialize(const TracingInitArgs& args);
-  ConsumerImpl* FindConsumer(TracingSessionGlobalID session_id);
-  void InitializeConsumer(TracingSessionGlobalID session_id);
-  void OnConsumerDisconnected(ConsumerImpl* consumer);
-  void OnProducerDisconnected(ProducerImpl* producer);
-
-  struct FindDataSourceRes {
-    FindDataSourceRes() = default;
-    FindDataSourceRes(DataSourceStaticState* a, DataSourceState* b, uint32_t c)
-        : static_state(a), internal_state(b), instance_idx(c) {}
-    explicit operator bool() const { return !!internal_state; }
-
-    DataSourceStaticState* static_state = nullptr;
-    DataSourceState* internal_state = nullptr;
-    uint32_t instance_idx = 0;
-  };
-  FindDataSourceRes FindDataSource(TracingBackendId, DataSourceInstanceID);
-
-  std::unique_ptr<base::TaskRunner> task_runner_;
-  std::vector<RegisteredDataSource> data_sources_;
-  std::vector<RegisteredBackend> backends_;
-  std::vector<RegisteredInterceptor> interceptors_;
-  TracingPolicy* policy_ = nullptr;
-
-  std::atomic<TracingSessionGlobalID> next_tracing_session_id_{};
-
-  // Maximum number of times we will try to reconnect producer backend.
-  // Should only be modified for testing purposes.
-  std::atomic<uint32_t> max_producer_reconnections_{100u};
-
-  PERFETTO_THREAD_CHECKER(thread_checker_)
-};
-
-}  // namespace internal
-}  // namespace perfetto
-
-#endif  // SRC_TRACING_INTERNAL_TRACING_MUXER_IMPL_H_
-// gen_amalgamated begin header: include/perfetto/ext/tracing/core/trace_stats.h
-/*
- * Copyright (C) 2017 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef INCLUDE_PERFETTO_EXT_TRACING_CORE_TRACE_STATS_H_
-#define INCLUDE_PERFETTO_EXT_TRACING_CORE_TRACE_STATS_H_
-
-// Creates the aliases in the ::perfetto namespace, doing things like:
-// using ::perfetto::Foo = ::perfetto::protos::gen::Foo.
-// See comments in forward_decls.h for the historical reasons of this
-// indirection layer.
-// gen_amalgamated expanded: #include "perfetto/tracing/core/forward_decls.h"
-
-// gen_amalgamated expanded: #include "protos/perfetto/common/trace_stats.gen.h"
-
-#endif  // INCLUDE_PERFETTO_EXT_TRACING_CORE_TRACE_STATS_H_
-// gen_amalgamated begin header: include/perfetto/tracing/core/tracing_service_state.h
-/*
- * Copyright (C) 2017 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-
-#ifndef INCLUDE_PERFETTO_TRACING_CORE_TRACING_SERVICE_STATE_H_
-#define INCLUDE_PERFETTO_TRACING_CORE_TRACING_SERVICE_STATE_H_
-
-// Creates the aliases in the ::perfetto namespace, doing things like:
-// using ::perfetto::Foo = ::perfetto::protos::gen::Foo.
-// See comments in forward_decls.h for the historical reasons of this
-// indirection layer.
-// gen_amalgamated expanded: #include "perfetto/tracing/core/forward_decls.h"
-
-// gen_amalgamated expanded: #include "protos/perfetto/common/tracing_service_state.gen.h"
-
-#endif  // INCLUDE_PERFETTO_TRACING_CORE_TRACING_SERVICE_STATE_H_
-/*
- * Copyright (C) 2019 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-// gen_amalgamated expanded: #include "src/tracing/internal/tracing_muxer_impl.h"
-
-#include <algorithm>
-#include <atomic>
-#include <mutex>
-#include <vector>
-
-// gen_amalgamated expanded: #include "perfetto/base/build_config.h"
-// gen_amalgamated expanded: #include "perfetto/base/logging.h"
-// gen_amalgamated expanded: #include "perfetto/base/task_runner.h"
-// gen_amalgamated expanded: #include "perfetto/ext/base/hash.h"
-// gen_amalgamated expanded: #include "perfetto/ext/base/thread_checker.h"
-// gen_amalgamated expanded: #include "perfetto/ext/base/waitable_event.h"
-// gen_amalgamated expanded: #include "perfetto/ext/tracing/core/shared_memory_arbiter.h"
-// gen_amalgamated expanded: #include "perfetto/ext/tracing/core/trace_packet.h"
-// gen_amalgamated expanded: #include "perfetto/ext/tracing/core/trace_stats.h"
-// gen_amalgamated expanded: #include "perfetto/ext/tracing/core/trace_writer.h"
-// gen_amalgamated expanded: #include "perfetto/ext/tracing/core/tracing_service.h"
-// gen_amalgamated expanded: #include "perfetto/tracing/buffer_exhausted_policy.h"
-// gen_amalgamated expanded: #include "perfetto/tracing/core/data_source_config.h"
-// gen_amalgamated expanded: #include "perfetto/tracing/core/tracing_service_state.h"
-// gen_amalgamated expanded: #include "perfetto/tracing/data_source.h"
-// gen_amalgamated expanded: #include "perfetto/tracing/internal/data_source_internal.h"
-// gen_amalgamated expanded: #include "perfetto/tracing/internal/interceptor_trace_writer.h"
-// gen_amalgamated expanded: #include "perfetto/tracing/internal/tracing_backend_fake.h"
-// gen_amalgamated expanded: #include "perfetto/tracing/trace_writer_base.h"
-// gen_amalgamated expanded: #include "perfetto/tracing/tracing.h"
-// gen_amalgamated expanded: #include "perfetto/tracing/tracing_backend.h"
-
-// gen_amalgamated expanded: #include "protos/perfetto/config/interceptor_config.gen.h"
-
-// gen_amalgamated expanded: #include "src/tracing/internal/tracing_muxer_fake.h"
-
-#if PERFETTO_BUILDFLAG(PERFETTO_OS_WIN)
-#include <io.h>  // For dup()
-#else
-#include <unistd.h>  // For dup()
-#endif
-
-namespace perfetto {
-namespace internal {
-
-namespace {
-
-// A task runner which prevents calls to DataSource::Trace() while an operation
-// is in progress. Used to guard against unexpected re-entrancy where the
-// user-provided task runner implementation tries to enter a trace point under
-// the hood.
-class NonReentrantTaskRunner : public base::TaskRunner {
- public:
-  NonReentrantTaskRunner(TracingMuxer* muxer,
-                         std::unique_ptr<base::TaskRunner> task_runner)
-      : muxer_(muxer), task_runner_(std::move(task_runner)) {}
-
-  // base::TaskRunner implementation.
-  void PostTask(std::function<void()> task) override {
-    CallWithGuard([&] { task_runner_->PostTask(std::move(task)); });
-  }
-
-  void PostDelayedTask(std::function<void()> task, uint32_t delay_ms) override {
-    CallWithGuard(
-        [&] { task_runner_->PostDelayedTask(std::move(task), delay_ms); });
-  }
-
-  void AddFileDescriptorWatch(base::PlatformHandle fd,
-                              std::function<void()> callback) override {
-    CallWithGuard(
-        [&] { task_runner_->AddFileDescriptorWatch(fd, std::move(callback)); });
-  }
-
-  void RemoveFileDescriptorWatch(base::PlatformHandle fd) override {
-    CallWithGuard([&] { task_runner_->RemoveFileDescriptorWatch(fd); });
-  }
-
-  bool RunsTasksOnCurrentThread() const override {
-    bool result;
-    CallWithGuard([&] { result = task_runner_->RunsTasksOnCurrentThread(); });
-    return result;
-  }
-
- private:
-  template <typename T>
-  void CallWithGuard(T lambda) const {
-    auto* root_tls = muxer_->GetOrCreateTracingTLS();
-    if (PERFETTO_UNLIKELY(root_tls->is_in_trace_point)) {
-      lambda();
-      return;
-    }
-    ScopedReentrancyAnnotator scoped_annotator(*root_tls);
-    lambda();
-  }
-
-  TracingMuxer* const muxer_;
-  std::unique_ptr<base::TaskRunner> task_runner_;
-};
-
-class StopArgsImpl : public DataSourceBase::StopArgs {
- public:
-  std::function<void()> HandleStopAsynchronously() const override {
-    auto closure = std::move(async_stop_closure);
-    async_stop_closure = std::function<void()>();
-    return closure;
-  }
-
-  mutable std::function<void()> async_stop_closure;
-};
-
-uint64_t ComputeConfigHash(const DataSourceConfig& config) {
-  base::Hash hasher;
-  std::string config_bytes = config.SerializeAsString();
-  hasher.Update(config_bytes.data(), config_bytes.size());
-  return hasher.digest();
-}
-
-}  // namespace
-
-// ----- Begin of TracingMuxerImpl::ProducerImpl
-TracingMuxerImpl::ProducerImpl::ProducerImpl(
-    TracingMuxerImpl* muxer,
-    TracingBackendId backend_id,
-    uint32_t shmem_batch_commits_duration_ms)
-    : muxer_(muxer),
-      backend_id_(backend_id),
-      shmem_batch_commits_duration_ms_(shmem_batch_commits_duration_ms) {}
-
-TracingMuxerImpl::ProducerImpl::~ProducerImpl() = default;
-
-void TracingMuxerImpl::ProducerImpl::Initialize(
-    std::unique_ptr<ProducerEndpoint> endpoint) {
-  PERFETTO_DCHECK_THREAD(thread_checker_);
-  PERFETTO_DCHECK(!connected_);
-  connection_id_++;
-
-  // Adopt the endpoint into a shared pointer so that we can safely share it
-  // across threads that create trace writers. The custom deleter function
-  // ensures that the endpoint is always destroyed on the muxer's thread. (Note
-  // that |task_runner| is assumed to outlive tracing sessions on all threads.)
-  auto* task_runner = muxer_->task_runner_.get();
-  auto deleter = [task_runner](ProducerEndpoint* e) {
-    task_runner->PostTask([e] { delete e; });
-  };
-  std::shared_ptr<ProducerEndpoint> service(endpoint.release(), deleter);
-  // This atomic store is needed because another thread might be concurrently
-  // creating a trace writer using the previous (disconnected) |service_|. See
-  // CreateTraceWriter().
-  std::atomic_store(&service_, std::move(service));
-  // Don't try to use the service here since it may not have connected yet. See
-  // OnConnect().
-}
-
-void TracingMuxerImpl::ProducerImpl::OnConnect() {
-  PERFETTO_DLOG("Producer connected");
-  PERFETTO_DCHECK_THREAD(thread_checker_);
-  PERFETTO_DCHECK(!connected_);
-  connected_ = true;
-  muxer_->UpdateDataSourcesOnAllBackends();
-}
-
-void TracingMuxerImpl::ProducerImpl::OnDisconnect() {
-  PERFETTO_DCHECK_THREAD(thread_checker_);
-  connected_ = false;
-  // Active data sources for this producer will be stopped by
-  // DestroyStoppedTraceWritersForCurrentThread() since the reconnected producer
-  // will have a different connection id (even before it has finished
-  // connecting).
-  registered_data_sources_.reset();
-  // Keep the old service around as a dead connection in case it has active
-  // trace writers. We can't clear |service_| here because other threads may be
-  // concurrently creating new trace writers. The reconnection below will
-  // atomically swap the new service in place of the old one.
-  dead_services_.push_back(service_);
-  // Try reconnecting the producer.
-  muxer_->OnProducerDisconnected(this);
-}
-
-void TracingMuxerImpl::ProducerImpl::OnTracingSetup() {
-  PERFETTO_DCHECK_THREAD(thread_checker_);
-  service_->MaybeSharedMemoryArbiter()->SetBatchCommitsDuration(
-      shmem_batch_commits_duration_ms_);
-}
-
-void TracingMuxerImpl::ProducerImpl::SetupDataSource(
-    DataSourceInstanceID id,
-    const DataSourceConfig& cfg) {
-  PERFETTO_DCHECK_THREAD(thread_checker_);
-  muxer_->SetupDataSource(backend_id_, connection_id_, id, cfg);
-}
-
-void TracingMuxerImpl::ProducerImpl::StartDataSource(DataSourceInstanceID id,
-                                                     const DataSourceConfig&) {
-  PERFETTO_DCHECK_THREAD(thread_checker_);
-  muxer_->StartDataSource(backend_id_, id);
-  service_->NotifyDataSourceStarted(id);
-}
-
-void TracingMuxerImpl::ProducerImpl::StopDataSource(DataSourceInstanceID id) {
-  PERFETTO_DCHECK_THREAD(thread_checker_);
-  muxer_->StopDataSource_AsyncBegin(backend_id_, id);
-}
-
-void TracingMuxerImpl::ProducerImpl::Flush(FlushRequestID flush_id,
-                                           const DataSourceInstanceID*,
-                                           size_t) {
-  // Flush is not plumbed for now, we just ack straight away.
-  PERFETTO_DCHECK_THREAD(thread_checker_);
-  service_->NotifyFlushComplete(flush_id);
-}
-
-void TracingMuxerImpl::ProducerImpl::ClearIncrementalState(
-    const DataSourceInstanceID* instances,
-    size_t instance_count) {
-  PERFETTO_DCHECK_THREAD(thread_checker_);
-  for (size_t inst_idx = 0; inst_idx < instance_count; inst_idx++) {
-    muxer_->ClearDataSourceIncrementalState(backend_id_, instances[inst_idx]);
-  }
-}
-
-void TracingMuxerImpl::ProducerImpl::SweepDeadServices() {
-  PERFETTO_DCHECK_THREAD(thread_checker_);
-  auto is_unused = [](const std::shared_ptr<ProducerEndpoint>& endpoint) {
-    auto* arbiter = endpoint->MaybeSharedMemoryArbiter();
-    return !arbiter || arbiter->TryShutdown();
-  };
-  for (auto it = dead_services_.begin(); it != dead_services_.end();) {
-    auto next_it = it;
-    next_it++;
-    if (is_unused(*it)) {
-      dead_services_.erase(it);
-    }
-    it = next_it;
-  }
-}
-
-// ----- End of TracingMuxerImpl::ProducerImpl methods.
-
-// ----- Begin of TracingMuxerImpl::ConsumerImpl
-TracingMuxerImpl::ConsumerImpl::ConsumerImpl(TracingMuxerImpl* muxer,
-                                             BackendType backend_type,
-                                             TracingBackendId backend_id,
-                                             TracingSessionGlobalID session_id)
-    : muxer_(muxer),
-      backend_type_(backend_type),
-      backend_id_(backend_id),
-      session_id_(session_id) {}
-
-TracingMuxerImpl::ConsumerImpl::~ConsumerImpl() = default;
-
-void TracingMuxerImpl::ConsumerImpl::Initialize(
-    std::unique_ptr<ConsumerEndpoint> endpoint) {
-  PERFETTO_DCHECK_THREAD(thread_checker_);
-  service_ = std::move(endpoint);
-  // Don't try to use the service here since it may not have connected yet. See
-  // OnConnect().
-}
-
-void TracingMuxerImpl::ConsumerImpl::OnConnect() {
-  PERFETTO_DCHECK_THREAD(thread_checker_);
-  PERFETTO_DCHECK(!connected_);
-  connected_ = true;
-
-  // Observe data source instance events so we get notified when tracing starts.
-  service_->ObserveEvents(ObservableEvents::TYPE_DATA_SOURCES_INSTANCES |
-                          ObservableEvents::TYPE_ALL_DATA_SOURCES_STARTED);
-
-  // If the API client configured and started tracing before we connected,
-  // tell the backend about it now.
-  if (trace_config_)
-    muxer_->SetupTracingSession(session_id_, trace_config_);
-  if (start_pending_)
-    muxer_->StartTracingSession(session_id_);
-  if (get_trace_stats_pending_) {
-    auto callback = std::move(get_trace_stats_callback_);
-    get_trace_stats_callback_ = nullptr;
-    muxer_->GetTraceStats(session_id_, std::move(callback));
-  }
-  if (query_service_state_callback_) {
-    auto callback = std::move(query_service_state_callback_);
-    query_service_state_callback_ = nullptr;
-    muxer_->QueryServiceState(session_id_, std::move(callback));
-  }
-  if (stop_pending_)
-    muxer_->StopTracingSession(session_id_);
-}
-
-void TracingMuxerImpl::ConsumerImpl::OnDisconnect() {
-  PERFETTO_DCHECK_THREAD(thread_checker_);
-#if PERFETTO_BUILDFLAG(PERFETTO_OS_ANDROID)
-  if (!connected_ && backend_type_ == kSystemBackend) {
-    PERFETTO_ELOG(
-        "Unable to connect to the system tracing service as a consumer. On "
-        "Android, use the \"perfetto\" command line tool instead to start "
-        "system-wide tracing sessions");
-  }
-#endif  // PERFETTO_BUILDFLAG(PERFETTO_OS_ANDROID)
-
-  // Notify the client about disconnection.
-  NotifyError(TracingError{TracingError::kDisconnected, "Peer disconnected"});
-
-  // Make sure the client doesn't hang in a blocking start/stop because of the
-  // disconnection.
-  NotifyStartComplete();
-  NotifyStopComplete();
-
-  // It shouldn't be necessary to call StopTracingSession. If we get this call
-  // it means that the service did shutdown before us, so there is no point
-  // trying it to ask it to stop the session. We should just remember to cleanup
-  // the consumer vector.
-  connected_ = false;
-
-  // Notify the muxer that it is safe to destroy |this|. This is needed because
-  // the ConsumerEndpoint stored in |service_| requires that |this| be safe to
-  // access until OnDisconnect() is called.
-  muxer_->OnConsumerDisconnected(this);
-}
-
-void TracingMuxerImpl::ConsumerImpl::Disconnect() {
-  // This is weird and deserves a comment.
-  //
-  // When we called the ConnectConsumer method on the service it returns
-  // us a ConsumerEndpoint which we stored in |service_|, however this
-  // ConsumerEndpoint holds a pointer to the ConsumerImpl pointed to by
-  // |this|. Part of the API contract to TracingService::ConnectConsumer is that
-  // the ConsumerImpl pointer has to be valid until the
-  // ConsumerImpl::OnDisconnect method is called. Therefore we reset the
-  // ConsumerEndpoint |service_|. Eventually this will call
-  // ConsumerImpl::OnDisconnect and we will inform the muxer it is safe to
-  // call the destructor of |this|.
-  service_.reset();
-}
-
-void TracingMuxerImpl::ConsumerImpl::OnTracingDisabled(
-    const std::string& error) {
-  PERFETTO_DCHECK_THREAD(thread_checker_);
-  PERFETTO_DCHECK(!stopped_);
-  stopped_ = true;
-
-  if (!error.empty())
-    NotifyError(TracingError{TracingError::kTracingFailed, error});
-
-  // If we're still waiting for the start event, fire it now. This may happen if
-  // there are no active data sources in the session.
-  NotifyStartComplete();
-  NotifyStopComplete();
-}
-
-void TracingMuxerImpl::ConsumerImpl::NotifyStartComplete() {
-  PERFETTO_DCHECK_THREAD(thread_checker_);
-  if (start_complete_callback_) {
-    muxer_->task_runner_->PostTask(std::move(start_complete_callback_));
-    start_complete_callback_ = nullptr;
-  }
-  if (blocking_start_complete_callback_) {
-    muxer_->task_runner_->PostTask(
-        std::move(blocking_start_complete_callback_));
-    blocking_start_complete_callback_ = nullptr;
-  }
-}
-
-void TracingMuxerImpl::ConsumerImpl::NotifyError(const TracingError& error) {
-  PERFETTO_DCHECK_THREAD(thread_checker_);
-  if (error_callback_) {
-    muxer_->task_runner_->PostTask(
-        std::bind(std::move(error_callback_), error));
-  }
-}
-
-void TracingMuxerImpl::ConsumerImpl::NotifyStopComplete() {
-  PERFETTO_DCHECK_THREAD(thread_checker_);
-  if (stop_complete_callback_) {
-    muxer_->task_runner_->PostTask(std::move(stop_complete_callback_));
-    stop_complete_callback_ = nullptr;
-  }
-  if (blocking_stop_complete_callback_) {
-    muxer_->task_runner_->PostTask(std::move(blocking_stop_complete_callback_));
-    blocking_stop_complete_callback_ = nullptr;
-  }
-}
-
-void TracingMuxerImpl::ConsumerImpl::OnTraceData(
-    std::vector<TracePacket> packets,
-    bool has_more) {
-  PERFETTO_DCHECK_THREAD(thread_checker_);
-  if (!read_trace_callback_)
-    return;
-
-  size_t capacity = 0;
-  for (const auto& packet : packets) {
-    // 16 is an over-estimation of the proto preamble size
-    capacity += packet.size() + 16;
-  }
-
-  // The shared_ptr is to avoid making a copy of the buffer when PostTask-ing.
-  std::shared_ptr<std::vector<char>> buf(new std::vector<char>());
-  buf->reserve(capacity);
-  for (auto& packet : packets) {
-    char* start;
-    size_t size;
-    std::tie(start, size) = packet.GetProtoPreamble();
-    buf->insert(buf->end(), start, start + size);
-    for (auto& slice : packet.slices()) {
-      const auto* slice_data = reinterpret_cast<const char*>(slice.start);
-      buf->insert(buf->end(), slice_data, slice_data + slice.size);
-    }
-  }
-
-  auto callback = read_trace_callback_;
-  muxer_->task_runner_->PostTask([callback, buf, has_more] {
-    TracingSession::ReadTraceCallbackArgs callback_arg{};
-    callback_arg.data = buf->empty() ? nullptr : &(*buf)[0];
-    callback_arg.size = buf->size();
-    callback_arg.has_more = has_more;
-    callback(callback_arg);
-  });
-
-  if (!has_more)
-    read_trace_callback_ = nullptr;
-}
-
-void TracingMuxerImpl::ConsumerImpl::OnObservableEvents(
-    const ObservableEvents& events) {
-  if (events.instance_state_changes_size()) {
-    for (const auto& state_change : events.instance_state_changes()) {
-      DataSourceHandle handle{state_change.producer_name(),
-                              state_change.data_source_name()};
-      data_source_states_[handle] =
-          state_change.state() ==
-          ObservableEvents::DATA_SOURCE_INSTANCE_STATE_STARTED;
-    }
-  }
-
-  if (events.instance_state_changes_size() ||
-      events.all_data_sources_started()) {
-    // Data sources are first reported as being stopped before starting, so once
-    // all the data sources we know about have started we can declare tracing
-    // begun. In the case where there are no matching data sources for the
-    // session, the service will report the all_data_sources_started() event
-    // without adding any instances (only since Android S / Perfetto v10.0).
-    if (start_complete_callback_ || blocking_start_complete_callback_) {
-      bool all_data_sources_started = std::all_of(
-          data_source_states_.cbegin(), data_source_states_.cend(),
-          [](std::pair<DataSourceHandle, bool> state) { return state.second; });
-      if (all_data_sources_started)
-        NotifyStartComplete();
-    }
-  }
-}
-
-void TracingMuxerImpl::ConsumerImpl::OnTraceStats(
-    bool success,
-    const TraceStats& trace_stats) {
-  if (!get_trace_stats_callback_)
-    return;
-  TracingSession::GetTraceStatsCallbackArgs callback_arg{};
-  callback_arg.success = success;
-  callback_arg.trace_stats_data = trace_stats.SerializeAsArray();
-  muxer_->task_runner_->PostTask(
-      std::bind(std::move(get_trace_stats_callback_), std::move(callback_arg)));
-  get_trace_stats_callback_ = nullptr;
-}
-
-// The callbacks below are not used.
-void TracingMuxerImpl::ConsumerImpl::OnDetach(bool) {}
-void TracingMuxerImpl::ConsumerImpl::OnAttach(bool, const TraceConfig&) {}
-// ----- End of TracingMuxerImpl::ConsumerImpl
-
-// ----- Begin of TracingMuxerImpl::TracingSessionImpl
-
-// TracingSessionImpl is the RAII object returned to API clients when they
-// invoke Tracing::CreateTracingSession. They use it for starting/stopping
-// tracing.
-
-TracingMuxerImpl::TracingSessionImpl::TracingSessionImpl(
-    TracingMuxerImpl* muxer,
-    TracingSessionGlobalID session_id,
-    BackendType backend_type)
-    : muxer_(muxer), session_id_(session_id), backend_type_(backend_type) {}
-
-// Can be destroyed from any thread.
-TracingMuxerImpl::TracingSessionImpl::~TracingSessionImpl() {
-  auto* muxer = muxer_;
-  auto session_id = session_id_;
-  muxer->task_runner_->PostTask(
-      [muxer, session_id] { muxer->DestroyTracingSession(session_id); });
-}
-
-// Can be called from any thread.
-void TracingMuxerImpl::TracingSessionImpl::Setup(const TraceConfig& cfg,
-                                                 int fd) {
-  auto* muxer = muxer_;
-  auto session_id = session_id_;
-  std::shared_ptr<TraceConfig> trace_config(new TraceConfig(cfg));
-  if (fd >= 0) {
-    base::ignore_result(backend_type_);  // For -Wunused in the amalgamation.
-#if PERFETTO_BUILDFLAG(PERFETTO_OS_WIN)
-    if (backend_type_ != kInProcessBackend) {
-      PERFETTO_FATAL(
-          "Passing a file descriptor to TracingSession::Setup() is only "
-          "supported with the kInProcessBackend on Windows. Use "
-          "TracingSession::ReadTrace() instead");
-    }
-#endif
-    trace_config->set_write_into_file(true);
-    fd = dup(fd);
-  }
-  muxer->task_runner_->PostTask([muxer, session_id, trace_config, fd] {
-    muxer->SetupTracingSession(session_id, trace_config, base::ScopedFile(fd));
-  });
-}
-
-// Can be called from any thread.
-void TracingMuxerImpl::TracingSessionImpl::Start() {
-  auto* muxer = muxer_;
-  auto session_id = session_id_;
-  muxer->task_runner_->PostTask(
-      [muxer, session_id] { muxer->StartTracingSession(session_id); });
-}
-
-// Can be called from any thread.
-void TracingMuxerImpl::TracingSessionImpl::ChangeTraceConfig(
-    const TraceConfig& cfg) {
-  auto* muxer = muxer_;
-  auto session_id = session_id_;
-  muxer->task_runner_->PostTask([muxer, session_id, cfg] {
-    muxer->ChangeTracingSessionConfig(session_id, cfg);
-  });
-}
-
-// Can be called from any thread except the service thread.
-void TracingMuxerImpl::TracingSessionImpl::StartBlocking() {
-  PERFETTO_DCHECK(!muxer_->task_runner_->RunsTasksOnCurrentThread());
-  auto* muxer = muxer_;
-  auto session_id = session_id_;
-  base::WaitableEvent tracing_started;
-  muxer->task_runner_->PostTask([muxer, session_id, &tracing_started] {
-    auto* consumer = muxer->FindConsumer(session_id);
-    if (!consumer) {
-      // TODO(skyostil): Signal an error to the user.
-      tracing_started.Notify();
-      return;
-    }
-    PERFETTO_DCHECK(!consumer->blocking_start_complete_callback_);
-    consumer->blocking_start_complete_callback_ = [&] {
-      tracing_started.Notify();
-    };
-    muxer->StartTracingSession(session_id);
-  });
-  tracing_started.Wait();
-}
-
-// Can be called from any thread.
-void TracingMuxerImpl::TracingSessionImpl::Flush(
-    std::function<void(bool)> user_callback,
-    uint32_t timeout_ms) {
-  auto* muxer = muxer_;
-  auto session_id = session_id_;
-  muxer->task_runner_->PostTask([muxer, session_id, timeout_ms, user_callback] {
-    auto* consumer = muxer->FindConsumer(session_id);
-    if (!consumer) {
-      std::move(user_callback)(false);
-      return;
-    }
-    muxer->FlushTracingSession(session_id, timeout_ms,
-                               std::move(user_callback));
-  });
-}
-
-// Can be called from any thread.
-void TracingMuxerImpl::TracingSessionImpl::Stop() {
-  auto* muxer = muxer_;
-  auto session_id = session_id_;
-  muxer->task_runner_->PostTask(
-      [muxer, session_id] { muxer->StopTracingSession(session_id); });
-}
-
-// Can be called from any thread except the service thread.
-void TracingMuxerImpl::TracingSessionImpl::StopBlocking() {
-  PERFETTO_DCHECK(!muxer_->task_runner_->RunsTasksOnCurrentThread());
-  auto* muxer = muxer_;
-  auto session_id = session_id_;
-  base::WaitableEvent tracing_stopped;
-  muxer->task_runner_->PostTask([muxer, session_id, &tracing_stopped] {
-    auto* consumer = muxer->FindConsumer(session_id);
-    if (!consumer) {
-      // TODO(skyostil): Signal an error to the user.
-      tracing_stopped.Notify();
-      return;
-    }
-    PERFETTO_DCHECK(!consumer->blocking_stop_complete_callback_);
-    consumer->blocking_stop_complete_callback_ = [&] {
-      tracing_stopped.Notify();
-    };
-    muxer->StopTracingSession(session_id);
-  });
-  tracing_stopped.Wait();
-}
-
-// Can be called from any thread.
-void TracingMuxerImpl::TracingSessionImpl::ReadTrace(ReadTraceCallback cb) {
-  auto* muxer = muxer_;
-  auto session_id = session_id_;
-  muxer->task_runner_->PostTask([muxer, session_id, cb] {
-    muxer->ReadTracingSessionData(session_id, std::move(cb));
-  });
-}
-
-// Can be called from any thread.
-void TracingMuxerImpl::TracingSessionImpl::SetOnStartCallback(
-    std::function<void()> cb) {
-  auto* muxer = muxer_;
-  auto session_id = session_id_;
-  muxer->task_runner_->PostTask([muxer, session_id, cb] {
-    auto* consumer = muxer->FindConsumer(session_id);
-    if (!consumer)
-      return;
-    consumer->start_complete_callback_ = cb;
-  });
-}
-
-// Can be called from any thread
-void TracingMuxerImpl::TracingSessionImpl::SetOnErrorCallback(
-    std::function<void(TracingError)> cb) {
-  auto* muxer = muxer_;
-  auto session_id = session_id_;
-  muxer->task_runner_->PostTask([muxer, session_id, cb] {
-    auto* consumer = muxer->FindConsumer(session_id);
-    if (!consumer) {
-      // Notify the client about concurrent disconnection of the session.
-      if (cb)
-        cb(TracingError{TracingError::kDisconnected, "Peer disconnected"});
-      return;
-    }
-    consumer->error_callback_ = cb;
-  });
-}
-
-// Can be called from any thread.
-void TracingMuxerImpl::TracingSessionImpl::SetOnStopCallback(
-    std::function<void()> cb) {
-  auto* muxer = muxer_;
-  auto session_id = session_id_;
-  muxer->task_runner_->PostTask([muxer, session_id, cb] {
-    auto* consumer = muxer->FindConsumer(session_id);
-    if (!consumer)
-      return;
-    consumer->stop_complete_callback_ = cb;
-  });
-}
-
-// Can be called from any thread.
-void TracingMuxerImpl::TracingSessionImpl::GetTraceStats(
-    GetTraceStatsCallback cb) {
-  auto* muxer = muxer_;
-  auto session_id = session_id_;
-  muxer->task_runner_->PostTask([muxer, session_id, cb] {
-    muxer->GetTraceStats(session_id, std::move(cb));
-  });
-}
-
-// Can be called from any thread.
-void TracingMuxerImpl::TracingSessionImpl::QueryServiceState(
-    QueryServiceStateCallback cb) {
-  auto* muxer = muxer_;
-  auto session_id = session_id_;
-  muxer->task_runner_->PostTask([muxer, session_id, cb] {
-    muxer->QueryServiceState(session_id, std::move(cb));
-  });
-}
-
-// ----- End of TracingMuxerImpl::TracingSessionImpl
-
-// static
-TracingMuxer* TracingMuxer::instance_ = TracingMuxerFake::Get();
-
-// This is called by perfetto::Tracing::Initialize().
-// Can be called on any thread. Typically, but not necessarily, that will be
-// the embedder's main thread.
-TracingMuxerImpl::TracingMuxerImpl(const TracingInitArgs& args)
-    : TracingMuxer(args.platform ? args.platform
-                                 : Platform::GetDefaultPlatform()) {
-  PERFETTO_DETACH_FROM_THREAD(thread_checker_);
-  instance_ = this;
-
-  // Create the thread where muxer, producers and service will live.
-  task_runner_.reset(
-      new NonReentrantTaskRunner(this, platform_->CreateTaskRunner({})));
-
-  // Run the initializer on that thread.
-  task_runner_->PostTask([this, args] { Initialize(args); });
-}
-
-void TracingMuxerImpl::Initialize(const TracingInitArgs& args) {
-  PERFETTO_DCHECK_THREAD(thread_checker_);  // Rebind the thread checker.
-
-  policy_ = args.tracing_policy;
-
-  auto add_backend = [this, &args](TracingBackend* backend, BackendType type) {
-    if (!backend) {
-      // We skip the log in release builds because the *_backend_fake.cc code
-      // has already an ELOG before returning a nullptr.
-      PERFETTO_DLOG("Backend creation failed, type %d", static_cast<int>(type));
-      return;
-    }
-    TracingBackendId backend_id = backends_.size();
-    backends_.emplace_back();
-    RegisteredBackend& rb = backends_.back();
-    rb.backend = backend;
-    rb.id = backend_id;
-    rb.type = type;
-    rb.producer.reset(new ProducerImpl(this, backend_id,
-                                       args.shmem_batch_commits_duration_ms));
-    rb.producer_conn_args.producer = rb.producer.get();
-    rb.producer_conn_args.producer_name = platform_->GetCurrentProcessName();
-    rb.producer_conn_args.task_runner = task_runner_.get();
-    rb.producer_conn_args.shmem_size_hint_bytes =
-        args.shmem_size_hint_kb * 1024;
-    rb.producer_conn_args.shmem_page_size_hint_bytes =
-        args.shmem_page_size_hint_kb * 1024;
-    rb.producer->Initialize(rb.backend->ConnectProducer(rb.producer_conn_args));
-  };
-
-  if (args.backends & kSystemBackend) {
-    PERFETTO_CHECK(args.system_backend_factory_);
-    add_backend(args.system_backend_factory_(), kSystemBackend);
-  }
-
-  if (args.backends & kInProcessBackend) {
-    PERFETTO_CHECK(args.in_process_backend_factory_);
-    add_backend(args.in_process_backend_factory_(), kInProcessBackend);
-  }
-
-  if (args.backends & kCustomBackend) {
-    PERFETTO_CHECK(args.custom_backend);
-    add_backend(args.custom_backend, kCustomBackend);
-  }
-
-  if (args.backends & ~(kSystemBackend | kInProcessBackend | kCustomBackend)) {
-    PERFETTO_FATAL("Unsupported tracing backend type");
-  }
-
-  // Fallback backend for consumer creation for an unsupported backend type.
-  // This backend simply fails any attempt to start a tracing session.
-  // NOTE: This backend instance has to be added last.
-  add_backend(internal::TracingBackendFake::GetInstance(),
-              BackendType::kUnspecifiedBackend);
-}
-
-// Can be called from any thread (but not concurrently).
-bool TracingMuxerImpl::RegisterDataSource(
-    const DataSourceDescriptor& descriptor,
-    DataSourceFactory factory,
-    DataSourceStaticState* static_state) {
-  // Ignore repeated registrations.
-  if (static_state->index != kMaxDataSources)
-    return true;
-
-  static std::atomic<uint32_t> last_id{};
-  uint32_t new_index = last_id++;
-  if (new_index >= kMaxDataSources) {
-    PERFETTO_DLOG(
-        "RegisterDataSource failed: too many data sources already registered");
-    return false;
-  }
-
-  // Initialize the static state.
-  static_assert(sizeof(static_state->instances[0]) >= sizeof(DataSourceState),
-                "instances[] size mismatch");
-  for (size_t i = 0; i < static_state->instances.size(); i++)
-    new (&static_state->instances[i]) DataSourceState{};
-
-  static_state->index = new_index;
-
-  task_runner_->PostTask([this, descriptor, factory, static_state] {
-    data_sources_.emplace_back();
-    RegisteredDataSource& rds = data_sources_.back();
-    rds.descriptor = descriptor;
-    rds.factory = factory;
-    rds.static_state = static_state;
-    UpdateDataSourcesOnAllBackends();
-  });
-  return true;
-}
-
-// Can be called from any thread (but not concurrently).
-void TracingMuxerImpl::RegisterInterceptor(
-    const InterceptorDescriptor& descriptor,
-    InterceptorFactory factory,
-    InterceptorBase::TLSFactory tls_factory,
-    InterceptorBase::TracePacketCallback packet_callback) {
-  task_runner_->PostTask(
-      [this, descriptor, factory, tls_factory, packet_callback] {
-        // Ignore repeated registrations.
-        for (const auto& interceptor : interceptors_) {
-          if (interceptor.descriptor.name() == descriptor.name()) {
-            PERFETTO_DCHECK(interceptor.tls_factory == tls_factory);
-            PERFETTO_DCHECK(interceptor.packet_callback == packet_callback);
-            return;
-          }
-        }
-        // Only allow certain interceptors for now.
-        if (descriptor.name() != "test_interceptor" &&
-            descriptor.name() != "console") {
-          PERFETTO_ELOG(
-              "Interceptors are experimental. If you want to use them, please "
-              "get in touch with the project maintainers "
-              "(https://perfetto.dev/docs/contributing/"
-              "getting-started#community).");
-          return;
-        }
-        interceptors_.emplace_back();
-        RegisteredInterceptor& interceptor = interceptors_.back();
-        interceptor.descriptor = descriptor;
-        interceptor.factory = factory;
-        interceptor.tls_factory = tls_factory;
-        interceptor.packet_callback = packet_callback;
-      });
-}
-
-// Called by the service of one of the backends.
-void TracingMuxerImpl::SetupDataSource(TracingBackendId backend_id,
-                                       uint32_t backend_connection_id,
-                                       DataSourceInstanceID instance_id,
-                                       const DataSourceConfig& cfg) {
-  PERFETTO_DCHECK_THREAD(thread_checker_);
-  PERFETTO_DLOG("Setting up data source %" PRIu64 " %s", instance_id,
-                cfg.name().c_str());
-  uint64_t config_hash = ComputeConfigHash(cfg);
-
-  for (const auto& rds : data_sources_) {
-    if (rds.descriptor.name() != cfg.name())
-      continue;
-    DataSourceStaticState& static_state = *rds.static_state;
-
-    // If this data source is already active for this exact config, don't start
-    // another instance. This happens when we have several data sources with the
-    // same name, in which case the service sends one SetupDataSource event for
-    // each one. Since we can't map which event maps to which data source, we
-    // ensure each event only starts one data source instance.
-    // TODO(skyostil): Register a unique id with each data source to the service
-    // to disambiguate.
-    bool active_for_config = false;
-    for (uint32_t i = 0; i < kMaxDataSourceInstances; i++) {
-      if (!static_state.TryGet(i))
-        continue;
-      auto* internal_state =
-          reinterpret_cast<DataSourceState*>(&static_state.instances[i]);
-      if (internal_state->backend_id == backend_id &&
-          internal_state->config_hash == config_hash) {
-        active_for_config = true;
-        break;
-      }
-    }
-    if (active_for_config) {
-      PERFETTO_DLOG(
-          "Data source %s is already active with this config, skipping",
-          cfg.name().c_str());
-      continue;
-    }
-
-    for (uint32_t i = 0; i < kMaxDataSourceInstances; i++) {
-      // Find a free slot.
-      if (static_state.TryGet(i))
-        continue;
-
-      auto* internal_state =
-          reinterpret_cast<DataSourceState*>(&static_state.instances[i]);
-      std::lock_guard<std::recursive_mutex> guard(internal_state->lock);
-      static_assert(
-          std::is_same<decltype(internal_state->data_source_instance_id),
-                       DataSourceInstanceID>::value,
-          "data_source_instance_id type mismatch");
-      internal_state->backend_id = backend_id;
-      internal_state->backend_connection_id = backend_connection_id;
-      internal_state->data_source_instance_id = instance_id;
-      internal_state->buffer_id =
-          static_cast<internal::BufferId>(cfg.target_buffer());
-      internal_state->config_hash = config_hash;
-      internal_state->data_source = rds.factory();
-      internal_state->interceptor = nullptr;
-      internal_state->interceptor_id = 0;
-
-      if (cfg.has_interceptor_config()) {
-        for (size_t j = 0; j < interceptors_.size(); j++) {
-          if (cfg.interceptor_config().name() ==
-              interceptors_[j].descriptor.name()) {
-            PERFETTO_DLOG("Intercepting data source %" PRIu64
-                          " \"%s\" into \"%s\"",
-                          instance_id, cfg.name().c_str(),
-                          cfg.interceptor_config().name().c_str());
-            internal_state->interceptor_id = static_cast<uint32_t>(j + 1);
-            internal_state->interceptor = interceptors_[j].factory();
-            internal_state->interceptor->OnSetup({cfg});
-            break;
-          }
-        }
-        if (!internal_state->interceptor_id) {
-          PERFETTO_ELOG("Unknown interceptor configured for data source: %s",
-                        cfg.interceptor_config().name().c_str());
-        }
-      }
-
-      // This must be made at the end. See matching acquire-load in
-      // DataSource::Trace().
-      static_state.valid_instances.fetch_or(1 << i, std::memory_order_release);
-
-      DataSourceBase::SetupArgs setup_args;
-      setup_args.config = &cfg;
-      setup_args.internal_instance_index = i;
-      internal_state->data_source->OnSetup(setup_args);
-      return;
-    }
-    PERFETTO_ELOG(
-        "Maximum number of data source instances exhausted. "
-        "Dropping data source %" PRIu64,
-        instance_id);
-    break;
-  }
-}
-
-// Called by the service of one of the backends.
-void TracingMuxerImpl::StartDataSource(TracingBackendId backend_id,
-                                       DataSourceInstanceID instance_id) {
-  PERFETTO_DLOG("Starting data source %" PRIu64, instance_id);
-  PERFETTO_DCHECK_THREAD(thread_checker_);
-
-  auto ds = FindDataSource(backend_id, instance_id);
-  if (!ds) {
-    PERFETTO_ELOG("Could not find data source to start");
-    return;
-  }
-
-  DataSourceBase::StartArgs start_args{};
-  start_args.internal_instance_index = ds.instance_idx;
-
-  std::lock_guard<std::recursive_mutex> guard(ds.internal_state->lock);
-  if (ds.internal_state->interceptor)
-    ds.internal_state->interceptor->OnStart({});
-  ds.internal_state->trace_lambda_enabled = true;
-  ds.internal_state->data_source->OnStart(start_args);
-}
-
-// Called by the service of one of the backends.
-void TracingMuxerImpl::StopDataSource_AsyncBegin(
-    TracingBackendId backend_id,
-    DataSourceInstanceID instance_id) {
-  PERFETTO_DLOG("Stopping data source %" PRIu64, instance_id);
-  PERFETTO_DCHECK_THREAD(thread_checker_);
-
-  auto ds = FindDataSource(backend_id, instance_id);
-  if (!ds) {
-    PERFETTO_ELOG("Could not find data source to stop");
-    return;
-  }
-
-  StopArgsImpl stop_args{};
-  stop_args.internal_instance_index = ds.instance_idx;
-  stop_args.async_stop_closure = [this, backend_id, instance_id] {
-    // TracingMuxerImpl is long lived, capturing |this| is okay.
-    // The notification closure can be moved out of the StopArgs by the
-    // embedder to handle stop asynchronously. The embedder might then
-    // call the closure on a different thread than the current one, hence
-    // this nested PostTask().
-    task_runner_->PostTask([this, backend_id, instance_id] {
-      StopDataSource_AsyncEnd(backend_id, instance_id);
-    });
-  };
-
-  {
-    std::lock_guard<std::recursive_mutex> guard(ds.internal_state->lock);
-    if (ds.internal_state->interceptor)
-      ds.internal_state->interceptor->OnStop({});
-    ds.internal_state->data_source->OnStop(stop_args);
-  }
-
-  // If the embedder hasn't called StopArgs.HandleStopAsynchronously() run the
-  // async closure here. In theory we could avoid the PostTask and call
-  // straight into CompleteDataSourceAsyncStop(). We keep that to reduce
-  // divergencies between the deferred-stop vs non-deferred-stop code paths.
-  if (stop_args.async_stop_closure)
-    std::move(stop_args.async_stop_closure)();
-}
-
-void TracingMuxerImpl::StopDataSource_AsyncEnd(
-    TracingBackendId backend_id,
-    DataSourceInstanceID instance_id) {
-  PERFETTO_DLOG("Ending async stop of data source %" PRIu64, instance_id);
-  PERFETTO_DCHECK_THREAD(thread_checker_);
-
-  auto ds = FindDataSource(backend_id, instance_id);
-  if (!ds) {
-    PERFETTO_ELOG(
-        "Async stop of data source %" PRIu64
-        " failed. This might be due to calling the async_stop_closure twice.",
-        instance_id);
-    return;
-  }
-
-  const uint32_t mask = ~(1 << ds.instance_idx);
-  ds.static_state->valid_instances.fetch_and(mask, std::memory_order_acq_rel);
-
-  // Take the mutex to prevent that the data source is in the middle of
-  // a Trace() execution where it called GetDataSourceLocked() while we
-  // destroy it.
-  {
-    std::lock_guard<std::recursive_mutex> guard(ds.internal_state->lock);
-    ds.internal_state->trace_lambda_enabled = false;
-    ds.internal_state->data_source.reset();
-  }
-
-  // The other fields of internal_state are deliberately *not* cleared.
-  // See races-related comments of DataSource::Trace().
-
-  TracingMuxer::generation_++;
-
-  // |backends_| is append-only, Backend instances are always valid.
-  PERFETTO_CHECK(backend_id < backends_.size());
-  ProducerImpl* producer = backends_[backend_id].producer.get();
-  if (!producer)
-    return;
-  if (producer->connected_) {
-    // Flush any commits that might have been batched by SharedMemoryArbiter.
-    producer->service_->MaybeSharedMemoryArbiter()
-        ->FlushPendingCommitDataRequests();
-    producer->service_->NotifyDataSourceStopped(instance_id);
-  }
-  producer->SweepDeadServices();
-}
-
-void TracingMuxerImpl::ClearDataSourceIncrementalState(
-    TracingBackendId backend_id,
-    DataSourceInstanceID instance_id) {
-  PERFETTO_DCHECK_THREAD(thread_checker_);
-  PERFETTO_DLOG("Clearing incremental state for data source %" PRIu64,
-                instance_id);
-  auto ds = FindDataSource(backend_id, instance_id);
-  if (!ds) {
-    PERFETTO_ELOG("Could not find data source to clear incremental state for");
-    return;
-  }
-  // Make DataSource::TraceContext::GetIncrementalState() eventually notice that
-  // the incremental state should be cleared.
-  ds.static_state->incremental_state_generation.fetch_add(
-      1, std::memory_order_relaxed);
-}
-
-void TracingMuxerImpl::SyncProducersForTesting() {
-  std::mutex mutex;
-  std::condition_variable cv;
-
-  // IPC-based producers don't report connection errors explicitly for each
-  // command, but instead with an asynchronous callback
-  // (ProducerImpl::OnDisconnected). This means that the sync command below
-  // may have completed but failed to reach the service because of a
-  // disconnection, but we can't tell until the disconnection message comes
-  // through. To guard against this, we run two whole rounds of sync round-trips
-  // before returning; the first one will detect any disconnected producers and
-  // the second one will ensure any reconnections have completed and all data
-  // sources are registered in the service again.
-  for (size_t i = 0; i < 2; i++) {
-    size_t countdown = std::numeric_limits<size_t>::max();
-    task_runner_->PostTask([this, &mutex, &cv, &countdown] {
-      {
-        std::unique_lock<std::mutex> countdown_lock(mutex);
-        countdown = backends_.size();
-      }
-      for (auto& backend : backends_) {
-        auto* producer = backend.producer.get();
-        producer->service_->Sync([&mutex, &cv, &countdown] {
-          std::unique_lock<std::mutex> countdown_lock(mutex);
-          countdown--;
-          cv.notify_one();
-        });
-      }
-    });
-
-    {
-      std::unique_lock<std::mutex> countdown_lock(mutex);
-      cv.wait(countdown_lock, [&countdown] { return !countdown; });
-    }
-  }
-
-  // Check that all producers are indeed connected.
-  bool done = false;
-  bool all_producers_connected = true;
-  task_runner_->PostTask([this, &mutex, &cv, &done, &all_producers_connected] {
-    for (auto& backend : backends_)
-      all_producers_connected &= backend.producer->connected_;
-    std::unique_lock<std::mutex> lock(mutex);
-    done = true;
-    cv.notify_one();
-  });
-
-  {
-    std::unique_lock<std::mutex> lock(mutex);
-    cv.wait(lock, [&done] { return done; });
-  }
-  PERFETTO_DCHECK(all_producers_connected);
-}
-
-void TracingMuxerImpl::DestroyStoppedTraceWritersForCurrentThread() {
-  // Iterate across all possible data source types.
-  auto cur_generation = generation_.load(std::memory_order_acquire);
-  auto* root_tls = GetOrCreateTracingTLS();
-
-  auto destroy_stopped_instances = [](DataSourceThreadLocalState& tls) {
-    // |tls| has a vector of per-data-source-instance thread-local state.
-    DataSourceStaticState* static_state = tls.static_state;
-    if (!static_state)
-      return;  // Slot not used.
-
-    // Iterate across all possible instances for this data source.
-    for (uint32_t inst = 0; inst < kMaxDataSourceInstances; inst++) {
-      DataSourceInstanceThreadLocalState& ds_tls = tls.per_instance[inst];
-      if (!ds_tls.trace_writer)
-        continue;
-
-      DataSourceState* ds_state = static_state->TryGet(inst);
-      if (ds_state && ds_state->backend_id == ds_tls.backend_id &&
-          ds_state->backend_connection_id == ds_tls.backend_connection_id &&
-          ds_state->buffer_id == ds_tls.buffer_id &&
-          ds_state->data_source_instance_id == ds_tls.data_source_instance_id) {
-        continue;
-      }
-
-      // The DataSource instance has been destroyed or recycled.
-      ds_tls.Reset();  // Will also destroy the |ds_tls.trace_writer|.
-    }
-  };
-
-  for (size_t ds_idx = 0; ds_idx < kMaxDataSources; ds_idx++) {
-    // |tls| has a vector of per-data-source-instance thread-local state.
-    DataSourceThreadLocalState& tls = root_tls->data_sources_tls[ds_idx];
-    destroy_stopped_instances(tls);
-  }
-  destroy_stopped_instances(root_tls->track_event_tls);
-  root_tls->generation = cur_generation;
-}
-
-// Called both when a new data source is registered or when a new backend
-// connects. In both cases we want to be sure we reflected the data source
-// registrations on the backends.
-void TracingMuxerImpl::UpdateDataSourcesOnAllBackends() {
-  PERFETTO_DCHECK_THREAD(thread_checker_);
-  for (RegisteredDataSource& rds : data_sources_) {
-    for (RegisteredBackend& backend : backends_) {
-      // We cannot call RegisterDataSource on the backend before it connects.
-      if (!backend.producer->connected_)
-        continue;
-
-      PERFETTO_DCHECK(rds.static_state->index < kMaxDataSources);
-      if (backend.producer->registered_data_sources_.test(
-              rds.static_state->index))
-        continue;
-
-      rds.descriptor.set_will_notify_on_start(true);
-      rds.descriptor.set_will_notify_on_stop(true);
-      rds.descriptor.set_handles_incremental_state_clear(true);
-      backend.producer->service_->RegisterDataSource(rds.descriptor);
-      backend.producer->registered_data_sources_.set(rds.static_state->index);
-    }
-  }
-}
-
-void TracingMuxerImpl::SetupTracingSession(
-    TracingSessionGlobalID session_id,
-    const std::shared_ptr<TraceConfig>& trace_config,
-    base::ScopedFile trace_fd) {
-  PERFETTO_DCHECK_THREAD(thread_checker_);
-  PERFETTO_CHECK(!trace_fd || trace_config->write_into_file());
-
-  auto* consumer = FindConsumer(session_id);
-  if (!consumer)
-    return;
-
-  consumer->trace_config_ = trace_config;
-  if (trace_fd)
-    consumer->trace_fd_ = std::move(trace_fd);
-
-  if (!consumer->connected_)
-    return;
-
-  // Only used in the deferred start mode.
-  if (trace_config->deferred_start()) {
-    consumer->service_->EnableTracing(*trace_config,
-                                      std::move(consumer->trace_fd_));
-  }
-}
-
-void TracingMuxerImpl::StartTracingSession(TracingSessionGlobalID session_id) {
-  PERFETTO_DCHECK_THREAD(thread_checker_);
-
-  auto* consumer = FindConsumer(session_id);
-
-  if (!consumer)
-    return;
-
-  if (!consumer->trace_config_) {
-    PERFETTO_ELOG("Must call Setup(config) first");
-    return;
-  }
-
-  if (!consumer->connected_) {
-    consumer->start_pending_ = true;
-    return;
-  }
-
-  consumer->start_pending_ = false;
-  if (consumer->trace_config_->deferred_start()) {
-    consumer->service_->StartTracing();
-  } else {
-    consumer->service_->EnableTracing(*consumer->trace_config_,
-                                      std::move(consumer->trace_fd_));
-  }
-
-  // TODO implement support for the deferred-start + fast-triggering case.
-}
-
-void TracingMuxerImpl::ChangeTracingSessionConfig(
-    TracingSessionGlobalID session_id,
-    const TraceConfig& trace_config) {
-  PERFETTO_DCHECK_THREAD(thread_checker_);
-
-  auto* consumer = FindConsumer(session_id);
-
-  if (!consumer)
-    return;
-
-  if (!consumer->trace_config_) {
-    // Changing the config is only supported for started sessions.
-    PERFETTO_ELOG("Must call Setup(config) and Start() first");
-    return;
-  }
-
-  consumer->trace_config_ = std::make_shared<TraceConfig>(trace_config);
-  if (consumer->connected_)
-    consumer->service_->ChangeTraceConfig(trace_config);
-}
-
-void TracingMuxerImpl::FlushTracingSession(TracingSessionGlobalID session_id,
-                                           uint32_t timeout_ms,
-                                           std::function<void(bool)> callback) {
-  PERFETTO_DCHECK_THREAD(thread_checker_);
-  auto* consumer = FindConsumer(session_id);
-  if (!consumer || consumer->start_pending_ || consumer->stop_pending_ ||
-      !consumer->trace_config_) {
-    PERFETTO_ELOG("Flush() can be called only after Start() and before Stop()");
-    std::move(callback)(false);
-    return;
-  }
-
-  consumer->service_->Flush(timeout_ms, std::move(callback));
-}
-
-void TracingMuxerImpl::StopTracingSession(TracingSessionGlobalID session_id) {
-  PERFETTO_DCHECK_THREAD(thread_checker_);
-  auto* consumer = FindConsumer(session_id);
-  if (!consumer)
-    return;
-
-  if (consumer->start_pending_) {
-    // If the session hasn't started yet, wait until it does before stopping.
-    consumer->stop_pending_ = true;
-    return;
-  }
-
-  consumer->stop_pending_ = false;
-  if (consumer->stopped_) {
-    // If the session was already stopped (e.g., it failed to start), don't try
-    // stopping again.
-    consumer->NotifyStopComplete();
-  } else if (!consumer->trace_config_) {
-    PERFETTO_ELOG("Must call Setup(config) and Start() first");
-    return;
-  } else {
-    consumer->service_->DisableTracing();
-  }
-
-  consumer->trace_config_.reset();
-}
-
-void TracingMuxerImpl::DestroyTracingSession(
-    TracingSessionGlobalID session_id) {
-  PERFETTO_DCHECK_THREAD(thread_checker_);
-  for (RegisteredBackend& backend : backends_) {
-    // We need to find the consumer (if any) and call Disconnect as we destroy
-    // the tracing session. We can't call Disconnect() inside this for loop
-    // because in the in-process case this will end up to a synchronous call to
-    // OnConsumerDisconnect which will invalidate all the iterators to
-    // |backend.consumers|.
-    ConsumerImpl* consumer = nullptr;
-    for (auto& con : backend.consumers) {
-      if (con->session_id_ == session_id) {
-        consumer = con.get();
-        break;
-      }
-    }
-    if (consumer) {
-      // We broke out of the loop above on the assumption that each backend will
-      // only have a single consumer per session. This DCHECK ensures that
-      // this is the case.
-      PERFETTO_DCHECK(
-          std::count_if(backend.consumers.begin(), backend.consumers.end(),
-                        [session_id](const std::unique_ptr<ConsumerImpl>& con) {
-                          return con->session_id_ == session_id;
-                        }) == 1u);
-      consumer->Disconnect();
-    }
-  }
-}
-
-void TracingMuxerImpl::ReadTracingSessionData(
-    TracingSessionGlobalID session_id,
-    std::function<void(TracingSession::ReadTraceCallbackArgs)> callback) {
-  PERFETTO_DCHECK_THREAD(thread_checker_);
-  auto* consumer = FindConsumer(session_id);
-  if (!consumer) {
-    // TODO(skyostil): Signal an error to the user.
-    TracingSession::ReadTraceCallbackArgs callback_arg{};
-    callback(callback_arg);
-    return;
-  }
-  PERFETTO_DCHECK(!consumer->read_trace_callback_);
-  consumer->read_trace_callback_ = std::move(callback);
-  consumer->service_->ReadBuffers();
-}
-
-void TracingMuxerImpl::GetTraceStats(
-    TracingSessionGlobalID session_id,
-    TracingSession::GetTraceStatsCallback callback) {
-  PERFETTO_DCHECK_THREAD(thread_checker_);
-  auto* consumer = FindConsumer(session_id);
-  if (!consumer) {
-    TracingSession::GetTraceStatsCallbackArgs callback_arg{};
-    callback_arg.success = false;
-    callback(std::move(callback_arg));
-    return;
-  }
-  PERFETTO_DCHECK(!consumer->get_trace_stats_callback_);
-  consumer->get_trace_stats_callback_ = std::move(callback);
-  if (!consumer->connected_) {
-    consumer->get_trace_stats_pending_ = true;
-    return;
-  }
-  consumer->get_trace_stats_pending_ = false;
-  consumer->service_->GetTraceStats();
-}
-
-void TracingMuxerImpl::QueryServiceState(
-    TracingSessionGlobalID session_id,
-    TracingSession::QueryServiceStateCallback callback) {
-  PERFETTO_DCHECK_THREAD(thread_checker_);
-  auto* consumer = FindConsumer(session_id);
-  if (!consumer) {
-    TracingSession::QueryServiceStateCallbackArgs callback_arg{};
-    callback_arg.success = false;
-    callback(std::move(callback_arg));
-    return;
-  }
-  PERFETTO_DCHECK(!consumer->query_service_state_callback_);
-  if (!consumer->connected_) {
-    consumer->query_service_state_callback_ = std::move(callback);
-    return;
-  }
-  auto callback_wrapper = [callback](bool success,
-                                     protos::gen::TracingServiceState state) {
-    TracingSession::QueryServiceStateCallbackArgs callback_arg{};
-    callback_arg.success = success;
-    callback_arg.service_state_data = state.SerializeAsArray();
-    callback(std::move(callback_arg));
-  };
-  consumer->service_->QueryServiceState(std::move(callback_wrapper));
-}
-
-void TracingMuxerImpl::SetBatchCommitsDurationForTesting(
-    uint32_t batch_commits_duration_ms,
-    BackendType backend_type) {
-  for (RegisteredBackend& backend : backends_) {
-    if (backend.producer && backend.producer->connected_ &&
-        backend.type == backend_type) {
-      backend.producer->service_->MaybeSharedMemoryArbiter()
-          ->SetBatchCommitsDuration(batch_commits_duration_ms);
-    }
-  }
-}
-
-bool TracingMuxerImpl::EnableDirectSMBPatchingForTesting(
-    BackendType backend_type) {
-  for (RegisteredBackend& backend : backends_) {
-    if (backend.producer && backend.producer->connected_ &&
-        backend.type == backend_type &&
-        !backend.producer->service_->MaybeSharedMemoryArbiter()
-             ->EnableDirectSMBPatching()) {
-      return false;
-    }
-  }
-  return true;
-}
-
-TracingMuxerImpl::ConsumerImpl* TracingMuxerImpl::FindConsumer(
-    TracingSessionGlobalID session_id) {
-  PERFETTO_DCHECK_THREAD(thread_checker_);
-  for (RegisteredBackend& backend : backends_) {
-    for (auto& consumer : backend.consumers) {
-      if (consumer->session_id_ == session_id) {
-        return consumer.get();
-      }
-    }
-  }
-  return nullptr;
-}
-
-void TracingMuxerImpl::InitializeConsumer(TracingSessionGlobalID session_id) {
-  PERFETTO_DCHECK_THREAD(thread_checker_);
-
-  auto* consumer = FindConsumer(session_id);
-  if (!consumer)
-    return;
-
-  TracingBackendId backend_id = consumer->backend_id_;
-  // |backends_| is append-only, Backend instances are always valid.
-  PERFETTO_CHECK(backend_id < backends_.size());
-  RegisteredBackend& backend = backends_[backend_id];
-
-  TracingBackend::ConnectConsumerArgs conn_args;
-  conn_args.consumer = consumer;
-  conn_args.task_runner = task_runner_.get();
-  consumer->Initialize(backend.backend->ConnectConsumer(conn_args));
-}
-
-void TracingMuxerImpl::OnConsumerDisconnected(ConsumerImpl* consumer) {
-  PERFETTO_DCHECK_THREAD(thread_checker_);
-  for (RegisteredBackend& backend : backends_) {
-    auto pred = [consumer](const std::unique_ptr<ConsumerImpl>& con) {
-      return con.get() == consumer;
-    };
-    backend.consumers.erase(std::remove_if(backend.consumers.begin(),
-                                           backend.consumers.end(), pred),
-                            backend.consumers.end());
-  }
-}
-
-void TracingMuxerImpl::SetMaxProducerReconnectionsForTesting(uint32_t count) {
-  max_producer_reconnections_.store(count);
-}
-
-void TracingMuxerImpl::OnProducerDisconnected(ProducerImpl* producer) {
-  PERFETTO_DCHECK_THREAD(thread_checker_);
-  for (RegisteredBackend& backend : backends_) {
-    if (backend.producer.get() != producer)
-      continue;
-    // Try reconnecting the disconnected producer. If the connection succeeds,
-    // all the data sources will be automatically re-registered.
-    if (producer->connection_id_ > max_producer_reconnections_.load()) {
-      // Avoid reconnecting a failing producer too many times. Instead we just
-      // leak the producer instead of trying to avoid further complicating
-      // cross-thread trace writer creation.
-      PERFETTO_ELOG("Producer disconnected too many times; not reconnecting");
-      continue;
-    }
-    backend.producer->Initialize(
-        backend.backend->ConnectProducer(backend.producer_conn_args));
-  }
-
-  // Increment the generation counter to atomically ensure that:
-  // 1. Old trace writers from the severed connection eventually get cleaned up
-  //    by DestroyStoppedTraceWritersForCurrentThread().
-  // 2. No new trace writers can be created for the SharedMemoryArbiter from the
-  //    old connection.
-  TracingMuxer::generation_++;
-}
-
-TracingMuxerImpl::FindDataSourceRes TracingMuxerImpl::FindDataSource(
-    TracingBackendId backend_id,
-    DataSourceInstanceID instance_id) {
-  PERFETTO_DCHECK_THREAD(thread_checker_);
-  for (const auto& rds : data_sources_) {
-    DataSourceStaticState* static_state = rds.static_state;
-    for (uint32_t i = 0; i < kMaxDataSourceInstances; i++) {
-      auto* internal_state = static_state->TryGet(i);
-      if (internal_state && internal_state->backend_id == backend_id &&
-          internal_state->data_source_instance_id == instance_id) {
-        return FindDataSourceRes(static_state, internal_state, i);
-      }
-    }
-  }
-  return FindDataSourceRes();
-}
-
-// Can be called from any thread.
-std::unique_ptr<TraceWriterBase> TracingMuxerImpl::CreateTraceWriter(
-    DataSourceStaticState* static_state,
-    uint32_t data_source_instance_index,
-    DataSourceState* data_source,
-    BufferExhaustedPolicy buffer_exhausted_policy) {
-  if (PERFETTO_UNLIKELY(data_source->interceptor_id)) {
-    // If the session is being intercepted, return a heap-backed trace writer
-    // instead. This is safe because all the data given to the interceptor is
-    // either thread-local (|instance_index|), statically allocated
-    // (|static_state|) or constant after initialization (|interceptor|). Access
-    // to the interceptor instance itself through |data_source| is protected by
-    // a statically allocated lock (similarly to the data source instance).
-    auto& interceptor = interceptors_[data_source->interceptor_id - 1];
-    return std::unique_ptr<TraceWriterBase>(new InterceptorTraceWriter(
-        interceptor.tls_factory(static_state, data_source_instance_index),
-        interceptor.packet_callback, static_state, data_source_instance_index));
-  }
-  ProducerImpl* producer = backends_[data_source->backend_id].producer.get();
-  // Atomically load the current service endpoint. We keep the pointer as a
-  // shared pointer on the stack to guard against it from being concurrently
-  // modified on the thread by ProducerImpl::Initialize() swapping in a
-  // reconnected service on the muxer task runner thread.
-  //
-  // The endpoint may also be concurrently modified by SweepDeadServices()
-  // clearing out old disconnected services. We guard against that by
-  // SharedMemoryArbiter keeping track of any outstanding trace writers. After
-  // shutdown has started, the trace writer created below will be a null one
-  // which will drop any written data. See SharedMemoryArbiter::TryShutdown().
-  //
-  // We use an atomic pointer instead of holding a lock because
-  // CreateTraceWriter posts tasks under the hood.
-  std::shared_ptr<ProducerEndpoint> service =
-      std::atomic_load(&producer->service_);
-  return service->CreateTraceWriter(data_source->buffer_id,
-                                    buffer_exhausted_policy);
-}
-
-// This is called via the public API Tracing::NewTrace().
-// Can be called from any thread.
-std::unique_ptr<TracingSession> TracingMuxerImpl::CreateTracingSession(
-    BackendType requested_backend_type) {
-  TracingSessionGlobalID session_id = ++next_tracing_session_id_;
-
-  // |backend_type| can only specify one backend, not an OR-ed mask.
-  PERFETTO_CHECK((requested_backend_type & (requested_backend_type - 1)) == 0);
-
-  // Capturing |this| is fine because the TracingMuxer is a leaky singleton.
-  task_runner_->PostTask([this, requested_backend_type, session_id] {
-    for (RegisteredBackend& backend : backends_) {
-      if (requested_backend_type && backend.type &&
-          backend.type != requested_backend_type) {
-        continue;
-      }
-
-      TracingBackendId backend_id = backend.id;
-
-      // Create the consumer now, even if we have to ask the embedder below, so
-      // that any other tasks executing after this one can find the consumer and
-      // change its pending attributes.
-      backend.consumers.emplace_back(
-          new ConsumerImpl(this, backend.type, backend.id, session_id));
-
-      // The last registered backend in |backends_| is the unsupported backend
-      // without a valid type.
-      if (!backend.type) {
-        PERFETTO_ELOG(
-            "No tracing backend ready for type=%d, consumer will disconnect",
-            requested_backend_type);
-        InitializeConsumer(session_id);
-        return;
-      }
-
-      // Check if the embedder wants to be asked for permission before
-      // connecting the consumer.
-      if (!policy_) {
-        InitializeConsumer(session_id);
-        return;
-      }
-
-      TracingPolicy::ShouldAllowConsumerSessionArgs args;
-      args.backend_type = backend.type;
-      args.result_callback = [this, backend_id, session_id](bool allow) {
-        task_runner_->PostTask([this, backend_id, session_id, allow] {
-          if (allow) {
-            InitializeConsumer(session_id);
-            return;
-          }
-
-          PERFETTO_ELOG(
-              "Consumer session for backend type type=%d forbidden, "
-              "consumer will disconnect",
-              backends_[backend_id].type);
-
-          auto* consumer = FindConsumer(session_id);
-          if (!consumer)
-            return;
-
-          consumer->OnDisconnect();
-        });
-      };
-      policy_->ShouldAllowConsumerSession(args);
-      return;
-    }
-    PERFETTO_DFATAL("Not reached");
-  });
-
-  return std::unique_ptr<TracingSession>(
-      new TracingSessionImpl(this, session_id, requested_backend_type));
-}
-
-void TracingMuxerImpl::InitializeInstance(const TracingInitArgs& args) {
-  if (instance_ != TracingMuxerFake::Get())
-    PERFETTO_FATAL("Tracing already initialized");
-  new TracingMuxerImpl(args);
-}
-
-TracingMuxer::~TracingMuxer() = default;
-
-static_assert(std::is_same<internal::BufferId, BufferID>::value,
-              "public's BufferId and tracing/core's BufferID diverged");
-
-}  // namespace internal
-}  // namespace perfetto
-// gen_amalgamated begin source: src/tracing/internal/track_event_internal.cc
-// gen_amalgamated begin header: include/perfetto/tracing/internal/track_event_interned_fields.h
-/*
- * Copyright (C) 2021 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-// gen_amalgamated expanded: #include "perfetto/base/export.h"
-// gen_amalgamated expanded: #include "perfetto/tracing/track_event_interned_data_index.h"
-
-#ifndef INCLUDE_PERFETTO_TRACING_INTERNAL_TRACK_EVENT_INTERNED_FIELDS_H_
-#define INCLUDE_PERFETTO_TRACING_INTERNAL_TRACK_EVENT_INTERNED_FIELDS_H_
-
-namespace perfetto {
-namespace internal {
-
-// These helpers are exposed here to allow Chromium-without-client library
-// to share the interning buffers with Perfetto internals (e.g.
-// perfetto::TracedValue implementation).
-
-struct PERFETTO_EXPORT InternedEventCategory
-    : public TrackEventInternedDataIndex<
-          InternedEventCategory,
-          perfetto::protos::pbzero::InternedData::kEventCategoriesFieldNumber,
-          const char*,
-          SmallInternedDataTraits> {
-  ~InternedEventCategory() override;
-
-  static void Add(protos::pbzero::InternedData* interned_data,
-                  size_t iid,
-                  const char* value,
-                  size_t length);
-};
-
-struct PERFETTO_EXPORT InternedEventName
-    : public TrackEventInternedDataIndex<
-          InternedEventName,
-          perfetto::protos::pbzero::InternedData::kEventNamesFieldNumber,
-          const char*,
-          SmallInternedDataTraits> {
-  ~InternedEventName() override;
-
-  static void Add(protos::pbzero::InternedData* interned_data,
-                  size_t iid,
-                  const char* value);
-};
-
-struct PERFETTO_EXPORT InternedDebugAnnotationName
-    : public TrackEventInternedDataIndex<
-          InternedDebugAnnotationName,
-          perfetto::protos::pbzero::InternedData::
-              kDebugAnnotationNamesFieldNumber,
-          const char*,
-          SmallInternedDataTraits> {
-  ~InternedDebugAnnotationName() override;
-
-  static void Add(protos::pbzero::InternedData* interned_data,
-                  size_t iid,
-                  const char* value);
-};
-
-}  // namespace internal
-}  // namespace perfetto
-
-#endif  // INCLUDE_PERFETTO_TRACING_INTERNAL_TRACK_EVENT_INTERNED_FIELDS_H_
-// gen_amalgamated begin header: gen/protos/perfetto/common/track_event_descriptor.pbzero.h
-// Autogenerated by the ProtoZero compiler plugin. DO NOT EDIT.
-
-#ifndef PERFETTO_PROTOS_PROTOS_PERFETTO_COMMON_TRACK_EVENT_DESCRIPTOR_PROTO_H_
-#define PERFETTO_PROTOS_PROTOS_PERFETTO_COMMON_TRACK_EVENT_DESCRIPTOR_PROTO_H_
-
-#include <stddef.h>
-#include <stdint.h>
-
-// gen_amalgamated expanded: #include "perfetto/protozero/field_writer.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/message.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/packed_repeated_fields.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/proto_decoder.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/proto_utils.h"
-
-namespace perfetto {
-namespace protos {
-namespace pbzero {
-
-class TrackEventCategory;
-
-class TrackEventDescriptor_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/1, /*HAS_NONPACKED_REPEATED_FIELDS=*/true> {
- public:
-  TrackEventDescriptor_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit TrackEventDescriptor_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit TrackEventDescriptor_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_available_categories() const { return at<1>().valid(); }
-  ::protozero::RepeatedFieldIterator<::protozero::ConstBytes> available_categories() const { return GetRepeated<::protozero::ConstBytes>(1); }
-};
-
-class TrackEventDescriptor : public ::protozero::Message {
- public:
-  using Decoder = TrackEventDescriptor_Decoder;
-  enum : int32_t {
-    kAvailableCategoriesFieldNumber = 1,
-  };
-
-  using FieldMetadata_AvailableCategories =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kRepeatedNotPacked,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      TrackEventCategory,
-      TrackEventDescriptor>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_AvailableCategories kAvailableCategories() { return {}; }
-  template <typename T = TrackEventCategory> T* add_available_categories() {
-    return BeginNestedMessage<T>(1);
-  }
-
-};
-
-class TrackEventCategory_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/3, /*HAS_NONPACKED_REPEATED_FIELDS=*/true> {
- public:
-  TrackEventCategory_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit TrackEventCategory_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit TrackEventCategory_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_name() const { return at<1>().valid(); }
-  ::protozero::ConstChars name() const { return at<1>().as_string(); }
-  bool has_description() const { return at<2>().valid(); }
-  ::protozero::ConstChars description() const { return at<2>().as_string(); }
-  bool has_tags() const { return at<3>().valid(); }
-  ::protozero::RepeatedFieldIterator<::protozero::ConstChars> tags() const { return GetRepeated<::protozero::ConstChars>(3); }
-};
-
-class TrackEventCategory : public ::protozero::Message {
- public:
-  using Decoder = TrackEventCategory_Decoder;
-  enum : int32_t {
-    kNameFieldNumber = 1,
-    kDescriptionFieldNumber = 2,
-    kTagsFieldNumber = 3,
-  };
-
-  using FieldMetadata_Name =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kString,
-      std::string,
-      TrackEventCategory>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Name kName() { return {}; }
-  void set_name(const char* data, size_t size) {
-    AppendBytes(FieldMetadata_Name::kFieldId, data, size);
-  }
-  void set_name(std::string value) {
-    static constexpr uint32_t field_id = FieldMetadata_Name::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kString>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Description =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kString,
-      std::string,
-      TrackEventCategory>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Description kDescription() { return {}; }
-  void set_description(const char* data, size_t size) {
-    AppendBytes(FieldMetadata_Description::kFieldId, data, size);
-  }
-  void set_description(std::string value) {
-    static constexpr uint32_t field_id = FieldMetadata_Description::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kString>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Tags =
-    ::protozero::proto_utils::FieldMetadata<
-      3,
-      ::protozero::proto_utils::RepetitionType::kRepeatedNotPacked,
-      ::protozero::proto_utils::ProtoSchemaType::kString,
-      std::string,
-      TrackEventCategory>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Tags kTags() { return {}; }
-  void add_tags(const char* data, size_t size) {
-    AppendBytes(FieldMetadata_Tags::kFieldId, data, size);
-  }
-  void add_tags(std::string value) {
-    static constexpr uint32_t field_id = FieldMetadata_Tags::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kString>
-        ::Append(*this, field_id, value);
-  }
-};
-
-} // Namespace.
-} // Namespace.
-} // Namespace.
-#endif  // Include guard.
-/*
- * Copyright (C) 2019 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-// gen_amalgamated expanded: #include "perfetto/tracing/internal/track_event_internal.h"
-
-// gen_amalgamated expanded: #include "perfetto/base/proc_utils.h"
-// gen_amalgamated expanded: #include "perfetto/base/thread_utils.h"
-// gen_amalgamated expanded: #include "perfetto/base/time.h"
-// gen_amalgamated expanded: #include "perfetto/tracing/core/data_source_config.h"
-// gen_amalgamated expanded: #include "perfetto/tracing/internal/track_event_interned_fields.h"
-// gen_amalgamated expanded: #include "perfetto/tracing/track_event.h"
-// gen_amalgamated expanded: #include "perfetto/tracing/track_event_category_registry.h"
-// gen_amalgamated expanded: #include "perfetto/tracing/track_event_interned_data_index.h"
-// gen_amalgamated expanded: #include "protos/perfetto/common/data_source_descriptor.gen.h"
-// gen_amalgamated expanded: #include "protos/perfetto/common/track_event_descriptor.pbzero.h"
-// gen_amalgamated expanded: #include "protos/perfetto/trace/interned_data/interned_data.pbzero.h"
-// gen_amalgamated expanded: #include "protos/perfetto/trace/trace_packet_defaults.pbzero.h"
-// gen_amalgamated expanded: #include "protos/perfetto/trace/track_event/debug_annotation.pbzero.h"
-// gen_amalgamated expanded: #include "protos/perfetto/trace/track_event/track_descriptor.pbzero.h"
-
-namespace perfetto {
-
-TrackEventSessionObserver::~TrackEventSessionObserver() = default;
-void TrackEventSessionObserver::OnSetup(const DataSourceBase::SetupArgs&) {}
-void TrackEventSessionObserver::OnStart(const DataSourceBase::StartArgs&) {}
-void TrackEventSessionObserver::OnStop(const DataSourceBase::StopArgs&) {}
-
-namespace internal {
-
-BaseTrackEventInternedDataIndex::~BaseTrackEventInternedDataIndex() = default;
-
-namespace {
-
-std::atomic<perfetto::base::PlatformThreadId> g_main_thread;
-static constexpr const char kLegacySlowPrefix[] = "disabled-by-default-";
-static constexpr const char kSlowTag[] = "slow";
-static constexpr const char kDebugTag[] = "debug";
-
-void ForEachObserver(
-    std::function<bool(TrackEventSessionObserver*&)> callback) {
-  // Session observers, shared by all track event data source instances.
-  static constexpr int kMaxObservers = 8;
-  static std::recursive_mutex* mutex = new std::recursive_mutex{};  // Leaked.
-  static std::array<TrackEventSessionObserver*, kMaxObservers> observers{};
-  std::unique_lock<std::recursive_mutex> lock(*mutex);
-  for (auto& o : observers) {
-    if (!callback(o))
-      break;
-  }
-}
-
-enum class MatchType { kExact, kPattern };
-
-bool NameMatchesPattern(const std::string& pattern,
-                        const std::string& name,
-                        MatchType match_type) {
-  // To avoid pulling in all of std::regex, for now we only support a single "*"
-  // wildcard at the end of the pattern.
-  size_t i = pattern.find('*');
-  if (i != std::string::npos) {
-    PERFETTO_DCHECK(i == pattern.size() - 1);
-    if (match_type != MatchType::kPattern)
-      return false;
-    return name.substr(0, i) == pattern.substr(0, i);
-  }
-  return name == pattern;
-}
-
-bool NameMatchesPatternList(const std::vector<std::string>& patterns,
-                            const std::string& name,
-                            MatchType match_type) {
-  for (const auto& pattern : patterns) {
-    if (NameMatchesPattern(pattern, name, match_type))
-      return true;
-  }
-  return false;
-}
-
-}  // namespace
-
-// static
-const Track TrackEventInternal::kDefaultTrack{};
-
-// static
-std::atomic<int> TrackEventInternal::session_count_{};
-
-// static
-bool TrackEventInternal::Initialize(
-    const TrackEventCategoryRegistry& registry,
-    bool (*register_data_source)(const DataSourceDescriptor&)) {
-  if (!g_main_thread)
-    g_main_thread = perfetto::base::GetThreadId();
-
-  DataSourceDescriptor dsd;
-  dsd.set_name("track_event");
-
-  protozero::HeapBuffered<protos::pbzero::TrackEventDescriptor> ted;
-  for (size_t i = 0; i < registry.category_count(); i++) {
-    auto category = registry.GetCategory(i);
-    // Don't register group categories.
-    if (category->IsGroup())
-      continue;
-    auto cat = ted->add_available_categories();
-    cat->set_name(category->name);
-    if (category->description)
-      cat->set_description(category->description);
-    for (const auto& tag : category->tags) {
-      if (tag)
-        cat->add_tags(tag);
-    }
-    // Disabled-by-default categories get a "slow" tag.
-    if (!strncmp(category->name, kLegacySlowPrefix, strlen(kLegacySlowPrefix)))
-      cat->add_tags(kSlowTag);
-  }
-  dsd.set_track_event_descriptor_raw(ted.SerializeAsString());
-
-  return register_data_source(dsd);
-}
-
-// static
-bool TrackEventInternal::AddSessionObserver(
-    TrackEventSessionObserver* observer) {
-  bool result = false;
-  ForEachObserver([&](TrackEventSessionObserver*& o) {
-    if (!o) {
-      o = observer;
-      result = true;
-      return false;
-    }
-    return true;
-  });
-  return result;
-}
-
-// static
-void TrackEventInternal::RemoveSessionObserver(
-    TrackEventSessionObserver* observer) {
-  ForEachObserver([&](TrackEventSessionObserver*& o) {
-    if (o == observer) {
-      o = nullptr;
-      return false;
-    }
-    return true;
-  });
-}
-
-// static
-void TrackEventInternal::EnableTracing(
-    const TrackEventCategoryRegistry& registry,
-    const protos::gen::TrackEventConfig& config,
-    const DataSourceBase::SetupArgs& args) {
-  for (size_t i = 0; i < registry.category_count(); i++) {
-    if (IsCategoryEnabled(registry, config, *registry.GetCategory(i)))
-      registry.EnableCategoryForInstance(i, args.internal_instance_index);
-  }
-  ForEachObserver([&](TrackEventSessionObserver*& o) {
-    if (o)
-      o->OnSetup(args);
-    return true;
-  });
-}
-
-// static
-void TrackEventInternal::OnStart(const DataSourceBase::StartArgs& args) {
-  session_count_.fetch_add(1);
-  ForEachObserver([&](TrackEventSessionObserver*& o) {
-    if (o)
-      o->OnStart(args);
-    return true;
-  });
-}
-
-// static
-void TrackEventInternal::DisableTracing(
-    const TrackEventCategoryRegistry& registry,
-    const DataSourceBase::StopArgs& args) {
-  ForEachObserver([&](TrackEventSessionObserver*& o) {
-    if (o)
-      o->OnStop(args);
-    return true;
-  });
-  for (size_t i = 0; i < registry.category_count(); i++)
-    registry.DisableCategoryForInstance(i, args.internal_instance_index);
-}
-
-// static
-bool TrackEventInternal::IsCategoryEnabled(
-    const TrackEventCategoryRegistry& registry,
-    const protos::gen::TrackEventConfig& config,
-    const Category& category) {
-  // If this is a group category, check if any of its constituent categories are
-  // enabled. If so, then this one is enabled too.
-  if (category.IsGroup()) {
-    bool result = false;
-    category.ForEachGroupMember([&](const char* member_name, size_t name_size) {
-      for (size_t i = 0; i < registry.category_count(); i++) {
-        const auto ref_category = registry.GetCategory(i);
-        // Groups can't refer to other groups.
-        if (ref_category->IsGroup())
-          continue;
-        // Require an exact match.
-        if (ref_category->name_size() != name_size ||
-            strncmp(ref_category->name, member_name, name_size)) {
-          continue;
-        }
-        if (IsCategoryEnabled(registry, config, *ref_category)) {
-          result = true;
-          // Break ForEachGroupMember() loop.
-          return false;
-        }
-        break;
-      }
-      // No match? Must be a dynamic category.
-      DynamicCategory dyn_category(std::string(member_name, name_size));
-      Category ref_category{Category::FromDynamicCategory(dyn_category)};
-      if (IsCategoryEnabled(registry, config, ref_category)) {
-        result = true;
-        // Break ForEachGroupMember() loop.
-        return false;
-      }
-      // No match found => keep iterating.
-      return true;
-    });
-    return result;
-  }
-
-  auto has_matching_tag = [&](std::function<bool(const char*)> matcher) {
-    for (const auto& tag : category.tags) {
-      if (!tag)
-        break;
-      if (matcher(tag))
-        return true;
-    }
-    // Legacy "disabled-by-default" categories automatically get the "slow" tag.
-    if (!strncmp(category.name, kLegacySlowPrefix, strlen(kLegacySlowPrefix)) &&
-        matcher(kSlowTag)) {
-      return true;
-    }
-    return false;
-  };
-
-  // First try exact matches, then pattern matches.
-  const std::array<MatchType, 2> match_types = {
-      {MatchType::kExact, MatchType::kPattern}};
-  for (auto match_type : match_types) {
-    // 1. Enabled categories.
-    if (NameMatchesPatternList(config.enabled_categories(), category.name,
-                               match_type)) {
-      return true;
-    }
-
-    // 2. Enabled tags.
-    if (has_matching_tag([&](const char* tag) {
-          return NameMatchesPatternList(config.enabled_tags(), tag, match_type);
-        })) {
-      return true;
-    }
-
-    // 3. Disabled categories.
-    if (NameMatchesPatternList(config.disabled_categories(), category.name,
-                               match_type)) {
-      return false;
-    }
-
-    // 4. Disabled tags.
-    if (has_matching_tag([&](const char* tag) {
-          if (config.disabled_tags_size()) {
-            return NameMatchesPatternList(config.disabled_tags(), tag,
-                                          match_type);
-          } else {
-            // The "slow" and "debug" tags are disabled by default.
-            return NameMatchesPattern(kSlowTag, tag, match_type) ||
-                   NameMatchesPattern(kDebugTag, tag, match_type);
-          }
-        })) {
-      return false;
-    }
-  }
-
-  // If nothing matched, enable the category by default.
-  return true;
-}
-
-// static
-uint64_t TrackEventInternal::GetTimeNs() {
-  if (GetClockId() == protos::pbzero::BUILTIN_CLOCK_BOOTTIME)
-    return static_cast<uint64_t>(perfetto::base::GetBootTimeNs().count());
-  PERFETTO_DCHECK(GetClockId() == protos::pbzero::BUILTIN_CLOCK_MONOTONIC);
-  return static_cast<uint64_t>(perfetto::base::GetWallTimeNs().count());
-}
-
-// static
-int TrackEventInternal::GetSessionCount() {
-  return session_count_.load();
-}
-
-// static
-void TrackEventInternal::ResetIncrementalState(TraceWriterBase* trace_writer,
-                                               uint64_t timestamp) {
-  auto default_track = ThreadTrack::Current();
-  {
-    // Mark any incremental state before this point invalid. Also set up
-    // defaults so that we don't need to repeat constant data for each packet.
-    auto packet = NewTracePacket(
-        trace_writer, timestamp,
-        protos::pbzero::TracePacket::SEQ_INCREMENTAL_STATE_CLEARED);
-    auto defaults = packet->set_trace_packet_defaults();
-    defaults->set_timestamp_clock_id(GetClockId());
-
-    // Establish the default track for this event sequence.
-    auto track_defaults = defaults->set_track_event_defaults();
-    track_defaults->set_track_uuid(default_track.uuid);
-  }
-
-  // Every thread should write a descriptor for its default track, because most
-  // trace points won't explicitly reference it.
-  WriteTrackDescriptor(default_track, trace_writer);
-
-  // Additionally the main thread should dump the process descriptor.
-  if (perfetto::base::GetThreadId() == g_main_thread)
-    WriteTrackDescriptor(ProcessTrack::Current(), trace_writer);
-}
-
-// static
-protozero::MessageHandle<protos::pbzero::TracePacket>
-TrackEventInternal::NewTracePacket(TraceWriterBase* trace_writer,
-                                   uint64_t timestamp,
-                                   uint32_t seq_flags) {
-  auto packet = trace_writer->NewTracePacket();
-  packet->set_timestamp(timestamp);
-  // TODO(skyostil): Stop emitting this for every event once the trace
-  // processor understands trace packet defaults.
-  if (GetClockId() != protos::pbzero::BUILTIN_CLOCK_BOOTTIME)
-    packet->set_timestamp_clock_id(GetClockId());
-  packet->set_sequence_flags(seq_flags);
-  return packet;
-}
-
-// static
-EventContext TrackEventInternal::WriteEvent(
-    TraceWriterBase* trace_writer,
-    TrackEventIncrementalState* incr_state,
-    const Category* category,
-    const char* name,
-    perfetto::protos::pbzero::TrackEvent::Type type,
-    uint64_t timestamp) {
-  PERFETTO_DCHECK(g_main_thread);
-  PERFETTO_DCHECK(!incr_state->was_cleared);
-
-  auto packet = NewTracePacket(trace_writer, timestamp);
-  EventContext ctx(std::move(packet), incr_state);
-
-  auto track_event = ctx.event();
-  if (type != protos::pbzero::TrackEvent::TYPE_UNSPECIFIED)
-    track_event->set_type(type);
-
-  // We assume that |category| and |name| point to strings with static lifetime.
-  // This means we can use their addresses as interning keys.
-  // TODO(skyostil): Intern categories at compile time.
-  if (category && type != protos::pbzero::TrackEvent::TYPE_SLICE_END &&
-      type != protos::pbzero::TrackEvent::TYPE_COUNTER) {
-    category->ForEachGroupMember(
-        [&](const char* member_name, size_t name_size) {
-          size_t category_iid =
-              InternedEventCategory::Get(&ctx, member_name, name_size);
-          track_event->add_category_iids(category_iid);
-          return true;
-        });
-  }
-  if (name && type != protos::pbzero::TrackEvent::TYPE_SLICE_END) {
-    size_t name_iid = InternedEventName::Get(&ctx, name);
-    track_event->set_name_iid(name_iid);
-  }
-  return ctx;
-}
-
-// static
-protos::pbzero::DebugAnnotation* TrackEventInternal::AddDebugAnnotation(
-    perfetto::EventContext* event_ctx,
-    const char* name) {
-  auto annotation = event_ctx->event()->add_debug_annotations();
-  annotation->set_name_iid(InternedDebugAnnotationName::Get(event_ctx, name));
-  return annotation;
-}
-
-}  // namespace internal
-}  // namespace perfetto
-// gen_amalgamated begin source: src/tracing/internal/track_event_interned_fields.cc
-/*
- * Copyright (C) 2021 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-// gen_amalgamated expanded: #include "perfetto/tracing/internal/track_event_interned_fields.h"
-
-namespace perfetto {
-namespace internal {
-
-InternedEventCategory::~InternedEventCategory() = default;
-
-// static
-void InternedEventCategory::Add(protos::pbzero::InternedData* interned_data,
-                                size_t iid,
-                                const char* value,
-                                size_t length) {
-  auto category = interned_data->add_event_categories();
-  category->set_iid(iid);
-  category->set_name(value, length);
-}
-
-InternedEventName::~InternedEventName() = default;
-
-// static
-void InternedEventName::Add(protos::pbzero::InternedData* interned_data,
-                            size_t iid,
-                            const char* value) {
-  auto name = interned_data->add_event_names();
-  name->set_iid(iid);
-  name->set_name(value);
-}
-
-InternedDebugAnnotationName::~InternedDebugAnnotationName() = default;
-
-// static
-void InternedDebugAnnotationName::Add(
-    protos::pbzero::InternedData* interned_data,
-    size_t iid,
-    const char* value) {
-  auto name = interned_data->add_debug_annotation_names();
-  name->set_iid(iid);
-  name->set_name(value);
-}
-
-}  // namespace internal
-}  // namespace perfetto
-// gen_amalgamated begin source: src/tracing/platform.cc
-/*
- * Copyright (C) 2019 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-// gen_amalgamated expanded: #include "perfetto/tracing/platform.h"
-// gen_amalgamated expanded: #include "perfetto/tracing/internal/tracing_tls.h"
-// gen_amalgamated expanded: #include "perfetto/tracing/trace_writer_base.h"
-
-namespace perfetto {
-
-PlatformThreadLocalObject::~PlatformThreadLocalObject() = default;
-Platform::~Platform() = default;
-
-// static
-std::unique_ptr<PlatformThreadLocalObject>
-PlatformThreadLocalObject::CreateInstance() {
-  return std::unique_ptr<PlatformThreadLocalObject>(new internal::TracingTLS());
-}
-
-}  // namespace perfetto
-// gen_amalgamated begin source: src/tracing/traced_value.cc
-/*
- * Copyright (C) 2021 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-// gen_amalgamated expanded: #include "perfetto/tracing/traced_value.h"
-
-// gen_amalgamated expanded: #include "perfetto/base/logging.h"
-// gen_amalgamated expanded: #include "perfetto/tracing/debug_annotation.h"
-// gen_amalgamated expanded: #include "protos/perfetto/trace/track_event/debug_annotation.pbzero.h"
-
-namespace perfetto {
-
-namespace internal {
-
-TracedValue CreateTracedValueFromProto(
-    protos::pbzero::DebugAnnotation* context) {
-  return TracedValue::CreateFromProto(context);
-}
-
-}  // namespace internal
-
-// static
-TracedValue TracedValue::CreateFromProto(
-    protos::pbzero::DebugAnnotation* context) {
-  return TracedValue(context, nullptr);
-}
-
-void TracedValue::WriteInt64(int64_t value) && {
-  PERFETTO_DCHECK(checked_scope_.is_active());
-  context_->set_int_value(value);
-}
-
-void TracedValue::WriteUInt64(uint64_t value) && {
-  PERFETTO_DCHECK(checked_scope_.is_active());
-  context_->set_uint_value(value);
-}
-
-void TracedValue::WriteDouble(double value) && {
-  PERFETTO_DCHECK(checked_scope_.is_active());
-  context_->set_double_value(value);
-}
-
-void TracedValue::WriteBoolean(bool value) && {
-  PERFETTO_DCHECK(checked_scope_.is_active());
-  context_->set_bool_value(value);
-}
-
-void TracedValue::WriteString(const char* value) && {
-  PERFETTO_DCHECK(checked_scope_.is_active());
-  context_->set_string_value(value);
-}
-
-void TracedValue::WriteString(const char* value, size_t len) && {
-  PERFETTO_DCHECK(checked_scope_.is_active());
-  context_->set_string_value(value, len);
-}
-
-void TracedValue::WriteString(const std::string& value) && {
-  PERFETTO_DCHECK(checked_scope_.is_active());
-  context_->set_string_value(value);
-}
-
-void TracedValue::WritePointer(const void* value) && {
-  PERFETTO_DCHECK(checked_scope_.is_active());
-  context_->set_pointer_value(reinterpret_cast<uint64_t>(value));
-}
-
-TracedDictionary TracedValue::WriteDictionary() && {
-  // Note: this passes |checked_scope_.is_active_| bit to the parent to be
-  // picked up later by the new TracedDictionary.
-  PERFETTO_DCHECK(checked_scope_.is_active());
-  checked_scope_.Reset();
-
-  PERFETTO_DCHECK(!context_->is_finalized());
-  return TracedDictionary(context_, checked_scope_.parent_scope());
-}
-
-TracedArray TracedValue::WriteArray() && {
-  // Note: this passes |checked_scope_.is_active_| bit to the parent to be
-  // picked up later by the new TracedDictionary.
-  PERFETTO_DCHECK(checked_scope_.is_active());
-  checked_scope_.Reset();
-
-  PERFETTO_DCHECK(!context_->is_finalized());
-  return TracedArray(context_, checked_scope_.parent_scope());
-}
-
-TracedValue TracedArray::AppendItem() {
-  PERFETTO_DCHECK(checked_scope_.is_active());
-  return TracedValue(context_->add_array_values(), &checked_scope_);
-}
-
-TracedDictionary TracedArray::AppendDictionary() {
-  PERFETTO_DCHECK(checked_scope_.is_active());
-  return AppendItem().WriteDictionary();
-}
-
-TracedArray TracedArray::AppendArray() {
-  PERFETTO_DCHECK(checked_scope_.is_active());
-  return AppendItem().WriteArray();
-}
-
-TracedValue TracedDictionary::AddItem(StaticString key) {
-  PERFETTO_DCHECK(checked_scope_.is_active());
-  protos::pbzero::DebugAnnotation* item = context_->add_dict_entries();
-  item->set_name(key.value);
-  return TracedValue(item, &checked_scope_);
-}
-
-TracedValue TracedDictionary::AddItem(DynamicString key) {
-  PERFETTO_DCHECK(checked_scope_.is_active());
-  protos::pbzero::DebugAnnotation* item = context_->add_dict_entries();
-  item->set_name(key.value);
-  return TracedValue(item, &checked_scope_);
-}
-
-TracedDictionary TracedDictionary::AddDictionary(StaticString key) {
-  PERFETTO_DCHECK(checked_scope_.is_active());
-  return AddItem(key).WriteDictionary();
-}
-
-TracedDictionary TracedDictionary::AddDictionary(DynamicString key) {
-  PERFETTO_DCHECK(checked_scope_.is_active());
-  return AddItem(key).WriteDictionary();
-}
-
-TracedArray TracedDictionary::AddArray(StaticString key) {
-  PERFETTO_DCHECK(checked_scope_.is_active());
-  return AddItem(key).WriteArray();
-}
-
-TracedArray TracedDictionary::AddArray(DynamicString key) {
-  PERFETTO_DCHECK(checked_scope_.is_active());
-  return AddItem(key).WriteArray();
-}
-
-}  // namespace perfetto
-// gen_amalgamated begin source: src/tracing/tracing.cc
-/*
- * Copyright (C) 2019 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-// gen_amalgamated expanded: #include "perfetto/tracing/tracing.h"
-
-#include <atomic>
-#include <condition_variable>
-#include <mutex>
-
-// gen_amalgamated expanded: #include "perfetto/ext/base/waitable_event.h"
-// gen_amalgamated expanded: #include "perfetto/tracing/internal/track_event_internal.h"
-// gen_amalgamated expanded: #include "src/tracing/internal/tracing_muxer_impl.h"
-
-namespace perfetto {
-namespace {
-bool g_was_initialized = false;
-}
-
-// static
-void Tracing::InitializeInternal(const TracingInitArgs& args) {
-  static TracingInitArgs init_args;
-  if (g_was_initialized) {
-    if (!(init_args == args)) {
-      PERFETTO_ELOG(
-          "Tracing::Initialize() called more than once with different args. "
-          "This is not supported, only the first call will have effect.");
-      PERFETTO_DCHECK(false);
-    }
-    return;
-  }
-
-  // Make sure the headers and implementation files agree on the build config.
-  PERFETTO_CHECK(args.dcheck_is_on_ == PERFETTO_DCHECK_IS_ON());
-  if (args.log_message_callback) {
-    SetLogMessageCallback(args.log_message_callback);
-  }
-  internal::TracingMuxerImpl::InitializeInstance(args);
-  internal::TrackRegistry::InitializeInstance();
-  g_was_initialized = true;
-  init_args = args;
-}
-
-// static
-bool Tracing::IsInitialized() {
-  return g_was_initialized;
-}
-
-//  static
-std::unique_ptr<TracingSession> Tracing::NewTrace(BackendType backend) {
-  return static_cast<internal::TracingMuxerImpl*>(internal::TracingMuxer::Get())
-      ->CreateTracingSession(backend);
-}
-
-// Can be called from any thread.
-bool TracingSession::FlushBlocking(uint32_t timeout_ms) {
-  std::atomic<bool> flush_result;
-  base::WaitableEvent flush_ack;
-
-  // The non blocking Flush() can be called on any thread. It does the PostTask
-  // internally.
-  Flush(
-      [&flush_ack, &flush_result](bool res) {
-        flush_result = res;
-        flush_ack.Notify();
-      },
-      timeout_ms);
-  flush_ack.Wait();
-  return flush_result;
-}
-
-std::vector<char> TracingSession::ReadTraceBlocking() {
-  std::vector<char> raw_trace;
-  std::mutex mutex;
-  std::condition_variable cv;
-
-  bool all_read = false;
-
-  ReadTrace([&mutex, &raw_trace, &all_read, &cv](ReadTraceCallbackArgs cb) {
-    raw_trace.insert(raw_trace.end(), cb.data, cb.data + cb.size);
-    std::unique_lock<std::mutex> lock(mutex);
-    all_read = !cb.has_more;
-    if (all_read)
-      cv.notify_one();
-  });
-
-  {
-    std::unique_lock<std::mutex> lock(mutex);
-    cv.wait(lock, [&all_read] { return all_read; });
-  }
-  return raw_trace;
-}
-
-TracingSession::GetTraceStatsCallbackArgs
-TracingSession::GetTraceStatsBlocking() {
-  std::mutex mutex;
-  std::condition_variable cv;
-  GetTraceStatsCallbackArgs result;
-  bool stats_read = false;
-
-  GetTraceStats(
-      [&mutex, &result, &stats_read, &cv](GetTraceStatsCallbackArgs args) {
-        result = std::move(args);
-        std::unique_lock<std::mutex> lock(mutex);
-        stats_read = true;
-        cv.notify_one();
-      });
-
-  {
-    std::unique_lock<std::mutex> lock(mutex);
-    cv.wait(lock, [&stats_read] { return stats_read; });
-  }
-  return result;
-}
-
-TracingSession::QueryServiceStateCallbackArgs
-TracingSession::QueryServiceStateBlocking() {
-  std::mutex mutex;
-  std::condition_variable cv;
-  QueryServiceStateCallbackArgs result;
-  bool status_read = false;
-
-  QueryServiceState(
-      [&mutex, &result, &status_read, &cv](QueryServiceStateCallbackArgs args) {
-        result = std::move(args);
-        std::unique_lock<std::mutex> lock(mutex);
-        status_read = true;
-        cv.notify_one();
-      });
-
-  {
-    std::unique_lock<std::mutex> lock(mutex);
-    cv.wait(lock, [&status_read] { return status_read; });
-  }
-  return result;
-}
-
-}  // namespace perfetto
-// gen_amalgamated begin source: src/tracing/tracing_policy.cc
-/*
- * Copyright (C) 2021 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-// gen_amalgamated expanded: #include "perfetto/tracing/tracing_policy.h"
-
-namespace perfetto {
-
-TracingPolicy::~TracingPolicy() = default;
-
-}  // namespace perfetto
-// gen_amalgamated begin source: src/tracing/track.cc
-/*
- * Copyright (C) 2019 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-// gen_amalgamated expanded: #include "perfetto/tracing/track.h"
-
-// gen_amalgamated expanded: #include "perfetto/ext/base/file_utils.h"
-// gen_amalgamated expanded: #include "perfetto/ext/base/hash.h"
-// gen_amalgamated expanded: #include "perfetto/ext/base/scoped_file.h"
-// gen_amalgamated expanded: #include "perfetto/ext/base/string_splitter.h"
-// gen_amalgamated expanded: #include "perfetto/ext/base/string_utils.h"
-// gen_amalgamated expanded: #include "perfetto/ext/base/thread_utils.h"
-// gen_amalgamated expanded: #include "perfetto/ext/base/uuid.h"
-// gen_amalgamated expanded: #include "perfetto/tracing/internal/track_event_data_source.h"
-// gen_amalgamated expanded: #include "protos/perfetto/trace/track_event/counter_descriptor.gen.h"
-// gen_amalgamated expanded: #include "protos/perfetto/trace/track_event/process_descriptor.gen.h"
-// gen_amalgamated expanded: #include "protos/perfetto/trace/track_event/process_descriptor.pbzero.h"
-// gen_amalgamated expanded: #include "protos/perfetto/trace/track_event/thread_descriptor.gen.h"
-// gen_amalgamated expanded: #include "protos/perfetto/trace/track_event/thread_descriptor.pbzero.h"
-
-namespace perfetto {
-
-// static
-uint64_t Track::process_uuid;
-
-protos::gen::TrackDescriptor Track::Serialize() const {
-  protos::gen::TrackDescriptor desc;
-  desc.set_uuid(uuid);
-  if (parent_uuid)
-    desc.set_parent_uuid(parent_uuid);
-  return desc;
-}
-
-void Track::Serialize(protos::pbzero::TrackDescriptor* desc) const {
-  auto bytes = Serialize().SerializeAsString();
-  desc->AppendRawProtoBytes(bytes.data(), bytes.size());
-}
-
-protos::gen::TrackDescriptor ProcessTrack::Serialize() const {
-  auto desc = Track::Serialize();
-  auto pd = desc.mutable_process();
-  pd->set_pid(static_cast<int32_t>(pid));
-#if PERFETTO_BUILDFLAG(PERFETTO_OS_LINUX) || \
-    PERFETTO_BUILDFLAG(PERFETTO_OS_ANDROID)
-  std::string cmdline;
-  if (base::ReadFile("/proc/self/cmdline", &cmdline)) {
-    // Since cmdline is a zero-terminated list of arguments, this ends up
-    // writing just the first element, i.e., the process name, into the process
-    // name field.
-    pd->set_process_name(cmdline.c_str());
-    base::StringSplitter splitter(std::move(cmdline), '\0');
-    while (splitter.Next()) {
-      pd->add_cmdline(
-          std::string(splitter.cur_token(), splitter.cur_token_size()));
-    }
-  }
-  // TODO(skyostil): Record command line on Windows and Mac.
-#endif
-  return desc;
-}
-
-void ProcessTrack::Serialize(protos::pbzero::TrackDescriptor* desc) const {
-  auto bytes = Serialize().SerializeAsString();
-  desc->AppendRawProtoBytes(bytes.data(), bytes.size());
-}
-
-protos::gen::TrackDescriptor ThreadTrack::Serialize() const {
-  auto desc = Track::Serialize();
-  auto td = desc.mutable_thread();
-  td->set_pid(static_cast<int32_t>(pid));
-  td->set_tid(static_cast<int32_t>(tid));
-  std::string thread_name;
-  if (base::GetThreadName(thread_name))
-    td->set_thread_name(thread_name);
-  return desc;
-}
-
-void ThreadTrack::Serialize(protos::pbzero::TrackDescriptor* desc) const {
-  auto bytes = Serialize().SerializeAsString();
-  desc->AppendRawProtoBytes(bytes.data(), bytes.size());
-}
-
-protos::gen::TrackDescriptor CounterTrack::Serialize() const {
-  auto desc = Track::Serialize();
-  desc.set_name(name_);
-  auto* counter = desc.mutable_counter();
-  if (category_)
-    counter->add_categories(category_);
-  if (unit_ != perfetto::protos::pbzero::CounterDescriptor::UNIT_UNSPECIFIED)
-    counter->set_unit(static_cast<protos::gen::CounterDescriptor_Unit>(unit_));
-  if (unit_name_)
-    counter->set_unit_name(unit_name_);
-  if (unit_multiplier_ != 1)
-    counter->set_unit_multiplier(unit_multiplier_);
-  if (is_incremental_)
-    counter->set_is_incremental(is_incremental_);
-  return desc;
-}
-
-void CounterTrack::Serialize(protos::pbzero::TrackDescriptor* desc) const {
-  auto bytes = Serialize().SerializeAsString();
-  desc->AppendRawProtoBytes(bytes.data(), bytes.size());
-}
-
-namespace internal {
-namespace {
-
-uint64_t GetProcessStartTime() {
-#if !PERFETTO_BUILDFLAG(PERFETTO_OS_WIN)
-  std::string stat;
-  if (!base::ReadFile("/proc/self/stat", &stat))
-    return 0u;
-  // The stat file is a single line split into space-separated fields as "pid
-  // (comm) state ppid ...". However because the command name can contain any
-  // characters (including parentheses and spaces), we need to skip past it
-  // before parsing the rest of the fields. To do that, we look for the last
-  // instance of ") " (parentheses followed by space) and parse forward from
-  // that point.
-  size_t comm_end = stat.rfind(") ");
-  if (comm_end == std::string::npos)
-    return 0u;
-  stat = stat.substr(comm_end + strlen(") "));
-  base::StringSplitter splitter(stat, ' ');
-  for (size_t skip = 0; skip < 20; skip++) {
-    if (!splitter.Next())
-      return 0u;
-  }
-  return base::CStringToUInt64(splitter.cur_token()).value_or(0u);
-#else
-  return 0;
-#endif  // !PERFETTO_BUILDFLAG(PERFETTO_OS_WIN)
-}
-
-}  // namespace
-
-// static
-TrackRegistry* TrackRegistry::instance_;
-
-TrackRegistry::TrackRegistry() = default;
-TrackRegistry::~TrackRegistry() = default;
-
-// static
-void TrackRegistry::InitializeInstance() {
-  // TODO(eseckler): Chrome may call this more than once. Once Chrome doesn't
-  // call this directly anymore, bring back DCHECK(!instance_) instead.
-  if (instance_)
-    return;
-  instance_ = new TrackRegistry();
-
-  // Use the process start time + pid as the unique identifier for this process.
-  // This ensures that if there are two independent copies of the Perfetto SDK
-  // in the same process (e.g., one in the app and another in a system
-  // framework), events emitted by each will be consistently interleaved on
-  // common thread and process tracks.
-  if (uint64_t start_time = GetProcessStartTime()) {
-    base::Hash hash;
-    hash.Update(start_time);
-    hash.Update(base::GetProcessId());
-    Track::process_uuid = hash.digest();
-  } else {
-    // Fall back to a randomly generated identifier.
-    Track::process_uuid = static_cast<uint64_t>(base::Uuidv4().lsb());
-  }
-}
-
-void TrackRegistry::UpdateTrack(Track track,
-                                const std::string& serialized_desc) {
-  std::lock_guard<std::mutex> lock(mutex_);
-  tracks_[track.uuid] = std::move(serialized_desc);
-}
-
-void TrackRegistry::UpdateTrackImpl(
-    Track track,
-    std::function<void(protos::pbzero::TrackDescriptor*)> fill_function) {
-  constexpr size_t kInitialSliceSize = 32;
-  constexpr size_t kMaximumSliceSize = 4096;
-  protozero::HeapBuffered<protos::pbzero::TrackDescriptor> new_descriptor(
-      kInitialSliceSize, kMaximumSliceSize);
-  fill_function(new_descriptor.get());
-  auto serialized_desc = new_descriptor.SerializeAsString();
-  UpdateTrack(track, serialized_desc);
-}
-
-void TrackRegistry::EraseTrack(Track track) {
-  std::lock_guard<std::mutex> lock(mutex_);
-  tracks_.erase(track.uuid);
-}
-
-// static
-void TrackRegistry::WriteTrackDescriptor(
-    const SerializedTrackDescriptor& desc,
-    protozero::MessageHandle<protos::pbzero::TracePacket> packet) {
-  packet->AppendString(
-      perfetto::protos::pbzero::TracePacket::kTrackDescriptorFieldNumber, desc);
-}
-
-}  // namespace internal
-}  // namespace perfetto
-// gen_amalgamated begin source: src/tracing/track_event_category_registry.cc
-/*
- * Copyright (C) 2019 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-// gen_amalgamated expanded: #include "perfetto/tracing/track_event_category_registry.h"
-
-namespace perfetto {
-
-// static
-Category Category::FromDynamicCategory(const char* name) {
-  if (GetNthNameSize(1, name, name)) {
-    Category group(Group(name));
-    PERFETTO_DCHECK(group.name);
-    return group;
-  }
-  Category category(name);
-  PERFETTO_DCHECK(category.name);
-  return category;
-}
-
-Category Category::FromDynamicCategory(
-    const DynamicCategory& dynamic_category) {
-  return FromDynamicCategory(dynamic_category.name.c_str());
-}
-
-namespace internal {
-
-perfetto::DynamicCategory NullCategory(const perfetto::DynamicCategory&) {
-  return perfetto::DynamicCategory{};
-}
-
-void TrackEventCategoryRegistry::EnableCategoryForInstance(
-    size_t category_index,
-    uint32_t instance_index) const {
-  PERFETTO_DCHECK(instance_index < kMaxDataSourceInstances);
-  PERFETTO_DCHECK(category_index < category_count_);
-  // Matches the acquire_load in DataSource::Trace().
-  state_storage_[category_index].fetch_or(
-      static_cast<uint8_t>(1u << instance_index), std::memory_order_release);
-}
-
-void TrackEventCategoryRegistry::DisableCategoryForInstance(
-    size_t category_index,
-    uint32_t instance_index) const {
-  PERFETTO_DCHECK(instance_index < kMaxDataSourceInstances);
-  PERFETTO_DCHECK(category_index < category_count_);
-  // Matches the acquire_load in DataSource::Trace().
-  state_storage_[category_index].fetch_and(
-      static_cast<uint8_t>(~(1u << instance_index)), std::memory_order_release);
-}
-
-}  // namespace internal
-}  // namespace perfetto
-// gen_amalgamated begin source: src/tracing/track_event_legacy.cc
-/*
- * Copyright (C) 2020 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-// gen_amalgamated expanded: #include "perfetto/tracing/track_event_legacy.h"
-
-// gen_amalgamated expanded: #include "perfetto/tracing/track.h"
-
-namespace perfetto {
-namespace legacy {
-
-template <>
-ThreadTrack ConvertThreadId(const PerfettoLegacyCurrentThreadId&) {
-  // Because of the short-circuit in PERFETTO_INTERNAL_LEGACY_EVENT, we should
-  // never get here.
-  PERFETTO_DCHECK(false);
-  return ThreadTrack::Current();
-}
-
-}  // namespace legacy
-
-namespace internal {
-
-void LegacyTraceId::Write(protos::pbzero::TrackEvent::LegacyEvent* event,
-                          uint32_t event_flags) const {
-  // Legacy flow events always use bind_id.
-  if (event_flags &
-      (legacy::kTraceEventFlagFlowOut | legacy::kTraceEventFlagFlowIn)) {
-    // Flow bind_ids don't have scopes, so we need to mangle in-process ones to
-    // avoid collisions.
-    if (id_flags_ & legacy::kTraceEventFlagHasLocalId) {
-      event->set_bind_id(raw_id_ ^ ProcessTrack::Current().uuid);
-    } else {
-      event->set_bind_id(raw_id_);
-    }
-    return;
-  }
-
-  uint32_t scope_flags = id_flags_ & (legacy::kTraceEventFlagHasId |
-                                      legacy::kTraceEventFlagHasLocalId |
-                                      legacy::kTraceEventFlagHasGlobalId);
-  switch (scope_flags) {
-    case legacy::kTraceEventFlagHasId:
-      event->set_unscoped_id(raw_id_);
-      break;
-    case legacy::kTraceEventFlagHasLocalId:
-      event->set_local_id(raw_id_);
-      break;
-    case legacy::kTraceEventFlagHasGlobalId:
-      event->set_global_id(raw_id_);
-      break;
-  }
-  if (scope_)
-    event->set_id_scope(scope_);
-}
-
-}  // namespace internal
-}  // namespace perfetto
-// gen_amalgamated begin source: src/tracing/track_event_state_tracker.cc
-/*
- * Copyright (C) 2020 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-// gen_amalgamated expanded: #include "perfetto/tracing/track_event_state_tracker.h"
-
-// gen_amalgamated expanded: #include "perfetto/ext/base/hash.h"
-
-// gen_amalgamated expanded: #include "protos/perfetto/common/interceptor_descriptor.gen.h"
-// gen_amalgamated expanded: #include "protos/perfetto/trace/interned_data/interned_data.pbzero.h"
-// gen_amalgamated expanded: #include "protos/perfetto/trace/trace_packet.pbzero.h"
-// gen_amalgamated expanded: #include "protos/perfetto/trace/trace_packet_defaults.pbzero.h"
-// gen_amalgamated expanded: #include "protos/perfetto/trace/track_event/debug_annotation.pbzero.h"
-// gen_amalgamated expanded: #include "protos/perfetto/trace/track_event/process_descriptor.pbzero.h"
-// gen_amalgamated expanded: #include "protos/perfetto/trace/track_event/thread_descriptor.pbzero.h"
-// gen_amalgamated expanded: #include "protos/perfetto/trace/track_event/track_descriptor.pbzero.h"
-// gen_amalgamated expanded: #include "protos/perfetto/trace/track_event/track_event.pbzero.h"
-
-namespace perfetto {
-
-TrackEventStateTracker::~TrackEventStateTracker() = default;
-TrackEventStateTracker::Delegate::~Delegate() = default;
-
-// static
-void TrackEventStateTracker::ProcessTracePacket(
-    Delegate& delegate,
-    SequenceState& sequence_state,
-    const protos::pbzero::TracePacket_Decoder& packet) {
-  UpdateIncrementalState(delegate, sequence_state, packet);
-
-  if (!packet.has_track_event())
-    return;
-  perfetto::protos::pbzero::TrackEvent::Decoder track_event(
-      packet.track_event());
-
-  // TODO(skyostil): Support incremental timestamps.
-  uint64_t timestamp = packet.timestamp();
-
-  Track* track = &sequence_state.track;
-  if (track_event.has_track_uuid()) {
-    auto* session_state = delegate.GetSessionState();
-    if (!session_state)
-      return;  // Tracing must have ended.
-    track = &session_state->tracks[track_event.track_uuid()];
-  }
-
-  // We only log the first category of each event.
-  protozero::ConstChars category{};
-  uint64_t category_iid = 0;
-  if (auto iid_it = track_event.category_iids()) {
-    category_iid = *iid_it;
-    category.data = sequence_state.event_categories[category_iid].data();
-    category.size = sequence_state.event_categories[category_iid].size();
-  } else if (auto cat_it = track_event.categories()) {
-    category.data = reinterpret_cast<const char*>(cat_it->data());
-    category.size = cat_it->size();
-  }
-
-  protozero::ConstChars name{};
-  uint64_t name_iid = track_event.name_iid();
-  uint64_t name_hash = 0;
-  uint64_t duration = 0;
-  if (name_iid) {
-    name.data = sequence_state.event_names[name_iid].data();
-    name.size = sequence_state.event_names[name_iid].size();
-  } else if (track_event.has_name()) {
-    name.data = track_event.name().data;
-    name.size = track_event.name().size;
-  }
-
-  if (name.data) {
-    base::Hash hash;
-    hash.Update(name.data, name.size);
-    name_hash = hash.digest();
-  }
-
-  size_t depth = track->stack.size();
-  switch (track_event.type()) {
-    case protos::pbzero::TrackEvent::TYPE_SLICE_BEGIN: {
-      StackFrame frame;
-      frame.timestamp = timestamp;
-      frame.name_hash = name_hash;
-      if (track_event.has_track_uuid()) {
-        frame.name = name.ToStdString();
-        frame.category = category.ToStdString();
-      } else {
-        frame.name_iid = name_iid;
-        frame.category_iid = category_iid;
-      }
-      track->stack.push_back(std::move(frame));
-      break;
-    }
-    case protos::pbzero::TrackEvent::TYPE_SLICE_END:
-      if (!track->stack.empty()) {
-        const auto& prev_frame = track->stack.back();
-        if (prev_frame.name_iid) {
-          name.data = sequence_state.event_names[prev_frame.name_iid].data();
-          name.size = sequence_state.event_names[prev_frame.name_iid].size();
-        } else {
-          name.data = prev_frame.name.data();
-          name.size = prev_frame.name.size();
-        }
-        name_hash = prev_frame.name_hash;
-        if (prev_frame.category_iid) {
-          category.data =
-              sequence_state.event_categories[prev_frame.category_iid].data();
-          category.size =
-              sequence_state.event_categories[prev_frame.category_iid].size();
-        } else {
-          category.data = prev_frame.category.data();
-          category.size = prev_frame.category.size();
-        }
-        duration = timestamp - prev_frame.timestamp;
-        depth--;
-      }
-      break;
-    case protos::pbzero::TrackEvent::TYPE_INSTANT:
-      break;
-    case protos::pbzero::TrackEvent::TYPE_COUNTER:
-    case protos::pbzero::TrackEvent::TYPE_UNSPECIFIED:
-      // TODO(skyostil): Support counters.
-      return;
-  }
-
-  ParsedTrackEvent parsed_event{track_event};
-  parsed_event.timestamp_ns = timestamp;
-  parsed_event.duration_ns = duration;
-  parsed_event.stack_depth = depth;
-  parsed_event.category = category;
-  parsed_event.name = name;
-  parsed_event.name_hash = name_hash;
-  delegate.OnTrackEvent(*track, parsed_event);
-
-  if (track_event.type() == protos::pbzero::TrackEvent::TYPE_SLICE_END &&
-      !track->stack.empty()) {
-    track->stack.pop_back();
-  }
-}
-
-// static
-void TrackEventStateTracker::UpdateIncrementalState(
-    Delegate& delegate,
-    SequenceState& sequence_state,
-    const protos::pbzero::TracePacket_Decoder& packet) {
-#if PERFETTO_DCHECK_IS_ON()
-  if (!sequence_state.sequence_id) {
-    sequence_state.sequence_id = packet.trusted_packet_sequence_id();
-  } else {
-    PERFETTO_DCHECK(sequence_state.sequence_id ==
-                    packet.trusted_packet_sequence_id());
-  }
-#endif
-
-  if (packet.sequence_flags() &
-      perfetto::protos::pbzero::TracePacket::SEQ_INCREMENTAL_STATE_CLEARED) {
-    // Convert any existing event names and categories on the stack to
-    // non-interned strings so we can look up their names even after the
-    // incremental state is gone.
-    for (auto& frame : sequence_state.track.stack) {
-      if (frame.name_iid) {
-        frame.name = sequence_state.event_names[frame.name_iid];
-        frame.name_iid = 0u;
-      }
-      if (frame.category_iid) {
-        frame.category = sequence_state.event_categories[frame.category_iid];
-        frame.category_iid = 0u;
-      }
-    }
-    sequence_state.event_names.clear();
-    sequence_state.event_categories.clear();
-    sequence_state.debug_annotation_names.clear();
-    sequence_state.track.uuid = 0u;
-    sequence_state.track.index = 0u;
-  }
-  if (packet.has_interned_data()) {
-    perfetto::protos::pbzero::InternedData::Decoder interned_data(
-        packet.interned_data());
-    for (auto it = interned_data.event_names(); it; it++) {
-      perfetto::protos::pbzero::EventName::Decoder entry(*it);
-      sequence_state.event_names[entry.iid()] = entry.name().ToStdString();
-    }
-    for (auto it = interned_data.event_categories(); it; it++) {
-      perfetto::protos::pbzero::EventCategory::Decoder entry(*it);
-      sequence_state.event_categories[entry.iid()] = entry.name().ToStdString();
-    }
-    for (auto it = interned_data.debug_annotation_names(); it; it++) {
-      perfetto::protos::pbzero::DebugAnnotationName::Decoder entry(*it);
-      sequence_state.debug_annotation_names[entry.iid()] =
-          entry.name().ToStdString();
-    }
-  }
-  if (packet.has_trace_packet_defaults()) {
-    perfetto::protos::pbzero::TracePacketDefaults::Decoder defaults(
-        packet.trace_packet_defaults());
-    if (defaults.has_track_event_defaults()) {
-      perfetto::protos::pbzero::TrackEventDefaults::Decoder
-          track_event_defaults(defaults.track_event_defaults());
-      sequence_state.track.uuid = track_event_defaults.track_uuid();
-    }
-  }
-  if (packet.has_track_descriptor()) {
-    perfetto::protos::pbzero::TrackDescriptor::Decoder track_descriptor(
-        packet.track_descriptor());
-    auto* session_state = delegate.GetSessionState();
-    auto& track = session_state->tracks[track_descriptor.uuid()];
-    if (!track.index)
-      track.index = static_cast<uint32_t>(session_state->tracks.size() + 1);
-    track.uuid = track_descriptor.uuid();
-
-    track.name = track_descriptor.name().ToStdString();
-    track.pid = 0;
-    track.tid = 0;
-    if (track_descriptor.has_process()) {
-      perfetto::protos::pbzero::ProcessDescriptor::Decoder process(
-          track_descriptor.process());
-      track.pid = process.pid();
-      if (track.name.empty())
-        track.name = process.process_name().ToStdString();
-    } else if (track_descriptor.has_thread()) {
-      perfetto::protos::pbzero::ThreadDescriptor::Decoder thread(
-          track_descriptor.thread());
-      track.pid = thread.pid();
-      track.tid = thread.tid();
-      if (track.name.empty())
-        track.name = thread.thread_name().ToStdString();
-    }
-    delegate.OnTrackUpdated(track);
-
-    // Mirror properties to the default track of the sequence. Note that
-    // this does not catch updates to the default track written through other
-    // sequences.
-    if (track.uuid == sequence_state.track.uuid) {
-      sequence_state.track.index = track.index;
-      sequence_state.track.name = track.name;
-      sequence_state.track.pid = track.pid;
-      sequence_state.track.tid = track.tid;
-      sequence_state.track.user_data = track.user_data;
-    }
-  }
-}
-
-TrackEventStateTracker::ParsedTrackEvent::ParsedTrackEvent(
-    const perfetto::protos::pbzero::TrackEvent::Decoder& track_event_)
-    : track_event(track_event_) {}
-
-}  // namespace perfetto
-// gen_amalgamated begin source: src/tracing/virtual_destructors.cc
-/*
- * Copyright (C) 2019 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-// gen_amalgamated expanded: #include "perfetto/tracing/internal/tracing_tls.h"
-// gen_amalgamated expanded: #include "perfetto/tracing/tracing.h"
-// gen_amalgamated expanded: #include "perfetto/tracing/tracing_backend.h"
-
-// This translation unit contains the definitions for the destructor of pure
-// virtual interfaces for the src/public:public target. The alternative would be
-// introducing a one-liner .cc file for each pure virtual interface, which is
-// overkill. This is for compliance with -Wweak-vtables.
-
-namespace perfetto {
-namespace internal {
-
-TracingTLS::~TracingTLS() {
-  // Avoid entering trace points while the thread is being torn down.
-  is_in_trace_point = true;
-}
-
-}  // namespace internal
-
-TracingBackend::~TracingBackend() = default;
-TracingSession::~TracingSession() = default;
-
-}  // namespace perfetto
-// gen_amalgamated begin source: src/android_stats/statsd_logging_helper.cc
-// gen_amalgamated begin header: src/android_stats/statsd_logging_helper.h
-// gen_amalgamated begin header: src/android_stats/perfetto_atoms.h
-/*
- * Copyright (C) 2020 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef SRC_ANDROID_STATS_PERFETTO_ATOMS_H_
-#define SRC_ANDROID_STATS_PERFETTO_ATOMS_H_
-
-namespace perfetto {
-
-// This must match the values of the PerfettoUploadEvent enum in:
-// frameworks/proto_logging/stats/atoms.proto
-enum class PerfettoStatsdAtom {
-  kUndefined = 0,
-
-  // Checkpoints inside perfetto_cmd before tracing is finished.
-  kTraceBegin = 1,
-  kBackgroundTraceBegin = 2,
-  kOnConnect = 3,
-
-  // Guardrails inside perfetto_cmd before tracing is finished.
-  kOnTimeout = 16,
-  kCmdUserBuildTracingNotAllowed = 43,
-  kCmdFailedToInitGuardrailState = 44,
-  kCmdInvalidGuardrailState = 45,
-  kCmdHitUploadLimit = 46,
-
-  // Checkpoints inside traced.
-  kTracedEnableTracing = 37,
-  kTracedStartTracing = 38,
-  kTracedDisableTracing = 39,
-  kTracedNotifyTracingDisabled = 40,
-
-  // Trigger checkpoints inside traced.
-  // These atoms are special because, along with the UUID,
-  // they log the trigger name.
-  kTracedTriggerStartTracing = 41,
-  kTracedTriggerStopTracing = 42,
-
-  // Guardrails inside traced.
-  kTracedEnableTracingExistingTraceSession = 18,
-  kTracedEnableTracingTooLongTrace = 19,
-  kTracedEnableTracingInvalidTriggerTimeout = 20,
-  kTracedEnableTracingDurationWithTrigger = 21,
-  kTracedEnableTracingStopTracingWriteIntoFile = 22,
-  kTracedEnableTracingDuplicateTriggerName = 23,
-  kTracedEnableTracingInvalidDeferredStart = 24,
-  kTracedEnableTracingInvalidBufferSize = 25,
-  kTracedEnableTracingBufferSizeTooLarge = 26,
-  kTracedEnableTracingTooManyBuffers = 27,
-  kTracedEnableTracingDuplicateSessionName = 28,
-  kTracedEnableTracingSessionNameTooRecent = 29,
-  kTracedEnableTracingTooManySessionsForUid = 30,
-  kTracedEnableTracingTooManyConcurrentSessions = 31,
-  kTracedEnableTracingInvalidFdOutputFile = 32,
-  kTracedEnableTracingFailedToCreateFile = 33,
-  kTracedEnableTracingOom = 34,
-  kTracedEnableTracingUnknown = 35,
-  kTracedStartTracingInvalidSessionState = 36,
-  kTracedEnableTracingInvalidFilter = 47,
-
-  // Checkpoints inside perfetto_cmd after tracing has finished.
-  kOnTracingDisabled = 4,
-  kUploadIncidentBegin = 8,
-  kFinalizeTraceAndExit = 11,
-  kNotUploadingEmptyTrace = 17,
-
-  // Guardrails inside perfetto_cmd after tracing has finished.
-  kUploadIncidentFailure = 10,
-
-  // Deprecated as "success" is misleading; it simply means we were
-  // able to communicate with incidentd. Will be removed once
-  // incidentd is properly instrumented.
-  kUploadIncidentSuccess = 9,
-
-  // Deprecated as has the potential to be too spammy. Will be
-  // replaced with a whole new atom proto which uses a count metric
-  // instead of the event metric used for this proto.
-  kTriggerBegin = 12,
-  kTriggerSuccess = 13,
-  kTriggerFailure = 14,
-
-  // Deprecated as too coarse grained to be useful. Will be replaced
-  // with better broken down atoms as we do with traced.
-  kHitGuardrails = 15,
-
-  // Contained status of Dropbox uploads. Removed as Perfetto no
-  // longer supports uploading traces using Dropbox.
-  // reserved 5, 6, 7;
-};
-
-// This must match the values of the PerfettoTrigger::TriggerType enum in:
-// frameworks/base/cmds/statsd/src/atoms.proto
-enum PerfettoTriggerAtom {
-  kUndefined = 0,
-
-  kCmdTrigger = 1,
-  kCmdTriggerFail = 2,
-
-  kTriggerPerfettoTrigger = 3,
-  kTriggerPerfettoTriggerFail = 4,
-
-  kTracedLimitProbability = 5,
-  kTracedLimitMaxPer24h = 6,
-
-  kProbesProducerTrigger = 7,
-  kProbesProducerTriggerFail = 8,
-};
-
-}  // namespace perfetto
-
-#endif  // SRC_ANDROID_STATS_PERFETTO_ATOMS_H_
-/*
- * Copyright (C) 2020 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef SRC_ANDROID_STATS_STATSD_LOGGING_HELPER_H_
-#define SRC_ANDROID_STATS_STATSD_LOGGING_HELPER_H_
-
-#include <stdint.h>
-#include <string>
-#include <vector>
-
-// gen_amalgamated expanded: #include "src/android_stats/perfetto_atoms.h"
-
-namespace perfetto {
-namespace android_stats {
-
-// Functions in this file are only active on built in the Android
-// tree. On other platforms (including Android standalone and Chromium
-// on Android) these functions are a noop.
-
-// Logs the upload event to statsd if built in the Android tree.
-void MaybeLogUploadEvent(PerfettoStatsdAtom atom,
-                         int64_t uuid_lsb,
-                         int64_t uuid_msb,
-                         const std::string& trigger_name = "");
-
-// Logs the trigger events to statsd if built in the Android tree.
-void MaybeLogTriggerEvent(PerfettoTriggerAtom atom, const std::string& trigger);
-
-// Logs the trigger events to statsd if built in the Android tree.
-void MaybeLogTriggerEvents(PerfettoTriggerAtom atom,
-                           const std::vector<std::string>& triggers);
-
-}  // namespace android_stats
-}  // namespace perfetto
-
-#endif  // SRC_ANDROID_STATS_STATSD_LOGGING_HELPER_H_
-/*
- * Copyright (C) 2020 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-// gen_amalgamated expanded: #include "src/android_stats/statsd_logging_helper.h"
-
-#include <string>
-
-// gen_amalgamated expanded: #include "perfetto/base/build_config.h"
-// gen_amalgamated expanded: #include "perfetto/base/compiler.h"
-
-#if PERFETTO_BUILDFLAG(PERFETTO_OS_ANDROID) && \
-    PERFETTO_BUILDFLAG(PERFETTO_ANDROID_BUILD)
-// gen_amalgamated expanded: #include "src/android_internal/lazy_library_loader.h"  // nogncheck
-// gen_amalgamated expanded: #include "src/android_internal/statsd_logging.h"       // nogncheck
-#endif
-
-namespace perfetto {
-namespace android_stats {
-
-// Make sure we don't accidentally log on non-Android tree build. Note that even
-// removing this ifdef still doesn't make uploads work on OS_ANDROID.
-// PERFETTO_LAZY_LOAD will return a nullptr on non-Android and non-in-tree
-// builds as libperfetto_android_internal will not be available.
-#if PERFETTO_BUILDFLAG(PERFETTO_OS_ANDROID) && \
-    PERFETTO_BUILDFLAG(PERFETTO_ANDROID_BUILD)
-
-void MaybeLogUploadEvent(PerfettoStatsdAtom atom,
-                         int64_t uuid_lsb,
-                         int64_t uuid_msb,
-                         const std::string& trigger_name) {
-  PERFETTO_LAZY_LOAD(android_internal::StatsdLogUploadEvent, log_event_fn);
-  if (log_event_fn) {
-    log_event_fn(atom, uuid_lsb, uuid_msb, trigger_name.c_str());
-  }
-}
-
-void MaybeLogTriggerEvent(PerfettoTriggerAtom atom,
-                          const std::string& trigger_name) {
-  PERFETTO_LAZY_LOAD(android_internal::StatsdLogTriggerEvent, log_event_fn);
-  if (log_event_fn) {
-    log_event_fn(atom, trigger_name.c_str());
-  }
-}
-
-void MaybeLogTriggerEvents(PerfettoTriggerAtom atom,
-                           const std::vector<std::string>& triggers) {
-  PERFETTO_LAZY_LOAD(android_internal::StatsdLogTriggerEvent, log_event_fn);
-  if (log_event_fn) {
-    for (const std::string& trigger_name : triggers) {
-      log_event_fn(atom, trigger_name.c_str());
-    }
-  }
-}
-
-#else
-void MaybeLogUploadEvent(PerfettoStatsdAtom,
-                         int64_t,
-                         int64_t,
-                         const std::string&) {}
-void MaybeLogTriggerEvent(PerfettoTriggerAtom, const std::string&) {}
-void MaybeLogTriggerEvents(PerfettoTriggerAtom,
-                           const std::vector<std::string>&) {}
-#endif
-
-}  // namespace android_stats
-}  // namespace perfetto
-// gen_amalgamated begin source: src/protozero/filtering/filter_bytecode_parser.cc
-// gen_amalgamated begin header: src/protozero/filtering/filter_bytecode_parser.h
-/*
- * Copyright (C) 2021 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef SRC_PROTOZERO_FILTERING_FILTER_BYTECODE_PARSER_H_
-#define SRC_PROTOZERO_FILTERING_FILTER_BYTECODE_PARSER_H_
-
-#include <stddef.h>
-#include <stdint.h>
-
-#include <vector>
-
-namespace protozero {
-
-// Loads the proto-encoded bytecode in memory and allows fast lookups for tuples
-// (msg_index, field_id) to tell if a given field should be allowed or not and,
-// in the case of nested fields, what is the next message index to recurse into.
-// This class does two things:
-// 1. Expands the array of varint from the proto into a vector<uint32_t>. This
-//    is to avoid performing varint decoding on every lookup, at the cost of
-//    some extra memory (2KB-4KB). Note that the expanded vector is not just a
-//    1:1 copy of the proto one (more below). This is to avoid O(Fields) linear
-//    lookup complexity.
-// 2. Creates an index of offsets to remember the start word for each message.
-//    This is so we can jump to O(1) to the N-th message when recursing into a
-//    nested fields, without having to scan and find the (N-1)-th END_OF_MESSAGE
-//    marker.
-// Overall lookups are O(1) for field ids < 128 (kDirectlyIndexLimit) and O(N),
-// with N being the number of allowed field ranges for other fields.
-// See comments around |word_| below for the structure of the word vector.
-class FilterBytecodeParser {
- public:
-  // Result of a Query() operation
-  struct QueryResult {
-    bool allowed;  // Whether the field is allowed at all or no.
-
-    // If |allowed|==true && simple_field()==false, this tells the message index
-    // of the nested field that should be used when recursing in the parser.
-    uint32_t nested_msg_index;
-
-    // If |allowed|==true, specifies if the field is of a simple type (varint,
-    // fixed32/64, string or byte) or a nested field that needs recursion.
-    // In the latter case the caller is expected to use |nested_msg_index| for
-    // the next Query() calls.
-    bool simple_field() const { return nested_msg_index == kSimpleField; }
-  };
-
-  // Loads a filter. The filter data consists of a sequence of varints which
-  // contains the filter opcodes and a final checksum.
-  bool Load(const void* filter_data, size_t len);
-
-  // Checks wheter a given field is allowed or not.
-  // msg_index = 0 is the index of the root message, where all queries should
-  // start from (typically perfetto.protos.Trace).
-  QueryResult Query(uint32_t msg_index, uint32_t field_id);
-
-  void Reset();
-  void set_suppress_logs_for_fuzzer(bool x) { suppress_logs_for_fuzzer_ = x; }
-
- private:
-  static constexpr uint32_t kDirectlyIndexLimit = 128;
-  static constexpr uint32_t kAllowed = 1u << 31u;
-  static constexpr uint32_t kSimpleField = 0x7fffffff;
-
-  bool LoadInternal(const uint8_t* filter_data, size_t len);
-
-  // The state of all fields for all messages is stored in one contiguous array.
-  // This is to avoid memory fragmentation and allocator overhead.
-  // We expect a high number of messages (hundreds), but each message is small.
-  // For each message we store two sets of uint32:
-  // 1. A set of "directly indexed" fields, for field ids < 128.
-  // 2. The remainder is a set of ranges.
-  // So each message descriptor consists of a sequence of words as follows:
-  //
-  // [0] -> how many directly indexed fields are stored next (up to 128)
-  //
-  // [1..N] -> One word per field id (See "field state" below).
-  //
-  // [N + 1] -> Start of field id range 1
-  // [N + 2] -> End of field id range 1 (exclusive, STL-style).
-  // [N + 3] -> Field state for fields in range 1 (below)
-  //
-  // [N + 4] -> Start of field id range 2
-  // [N + 5] -> End of field id range 2 (exclusive, STL-style).
-  // [N + 6] -> Field state for fields in range 2 (below)
-
-  // The "field state" word is as follows:
-  // Bit 31: 0 if the field is disallowed, 1 if allowed.
-  //         Only directly indexed fields can be 0 (it doesn't make sense to add
-  //         a range and then say "btw it's NOT allowed".. don't add it then.
-  //         0 is only used for filling gaps in the directly indexed bucket.
-  // Bits [30..0] (only when MSB == allowed):
-  //  0x7fffffff: The field is "simple" (varint, fixed32/64, string, bytes) and
-  //      can be directly passed through in output. No recursion is needed.
-  //  [0, 7ffffffe]: The field is a nested submessage. The value is the index
-  //     that must be passed as first argument to the next Query() calls.
-  //     Note that the message index is purely a monotonic counter in the
-  //     filter bytecode, has no proto-equivalent match (unlike field ids).
-  std::vector<uint32_t> words_;
-
-  // One entry for each message index stored in the filter plus a sentinel at
-  // the end. Maps each message index to the offset in |words_| where the the
-  // Nth message start.
-  // message_offset_.size() - 2 == the max message id that can be parsed.
-  std::vector<uint32_t> message_offset_;
-
-  bool suppress_logs_for_fuzzer_ = false;
-};
-
-}  // namespace protozero
-
-#endif  // SRC_PROTOZERO_FILTERING_FILTER_BYTECODE_PARSER_H_
-// gen_amalgamated begin header: src/protozero/filtering/filter_bytecode_common.h
-/*
- * Copyright (C) 2021 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef SRC_PROTOZERO_FILTERING_FILTER_BYTECODE_COMMON_H_
-#define SRC_PROTOZERO_FILTERING_FILTER_BYTECODE_COMMON_H_
-
-#include <stdint.h>
-
-namespace protozero {
-
-enum FilterOpcode : uint32_t {
-  // The immediate value is 0 in this case.
-  kFilterOpcode_EndOfMessage = 0,
-
-  // The immediate value is the id of the allowed field.
-  kFilterOpcode_SimpleField = 1,
-
-  // The immediate value is the start of the range. The next word (without
-  // any shifting) is the length of the range.
-  kFilterOpcode_SimpleFieldRange = 2,
-
-  // The immediate value is the id of the allowed field. The next word
-  // (without any shifting) is the index of the filter that should be used to
-  // recurse into the nested message.
-  kFilterOpcode_NestedField = 3,
-};
-}  // namespace protozero
-
-#endif  // SRC_PROTOZERO_FILTERING_FILTER_BYTECODE_COMMON_H_
-/*
- * Copyright (C) 2021 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-// gen_amalgamated expanded: #include "src/protozero/filtering/filter_bytecode_parser.h"
-
-// gen_amalgamated expanded: #include "perfetto/base/logging.h"
-// gen_amalgamated expanded: #include "perfetto/ext/base/hash.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/packed_repeated_fields.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/proto_decoder.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/proto_utils.h"
-// gen_amalgamated expanded: #include "src/protozero/filtering/filter_bytecode_common.h"
-
-namespace protozero {
-
-void FilterBytecodeParser::Reset() {
-  bool suppress = suppress_logs_for_fuzzer_;
-  *this = FilterBytecodeParser();
-  suppress_logs_for_fuzzer_ = suppress;
-}
-
-bool FilterBytecodeParser::Load(const void* filter_data, size_t len) {
-  Reset();
-  bool res = LoadInternal(static_cast<const uint8_t*>(filter_data), len);
-  // If load fails, don't leave the parser in a half broken state.
-  if (!res)
-    Reset();
-  return res;
-}
-
-bool FilterBytecodeParser::LoadInternal(const uint8_t* bytecode_data,
-                                        size_t len) {
-  // First unpack the varints into a plain uint32 vector, so it's easy to
-  // iterate through them and look ahead.
-  std::vector<uint32_t> words;
-  bool packed_parse_err = false;
-  words.reserve(len);  // An overestimation, but avoids reallocations.
-  using BytecodeDecoder =
-      PackedRepeatedFieldIterator<proto_utils::ProtoWireType::kVarInt,
-                                  uint32_t>;
-  for (BytecodeDecoder it(bytecode_data, len, &packed_parse_err); it; ++it)
-    words.emplace_back(*it);
-
-  if (packed_parse_err || words.empty())
-    return false;
-
-  perfetto::base::Hash hasher;
-  for (size_t i = 0; i < words.size() - 1; ++i)
-    hasher.Update(words[i]);
-
-  uint32_t expected_csum = static_cast<uint32_t>(hasher.digest());
-  if (expected_csum != words.back()) {
-    if (!suppress_logs_for_fuzzer_) {
-      PERFETTO_ELOG("Filter bytecode checksum failed. Expected: %x, actual: %x",
-                    expected_csum, words.back());
-    }
-    return false;
-  }
-
-  words.pop_back();  // Pop the checksum.
-
-  // Temporay storage for each message. Cleared on every END_OF_MESSAGE.
-  std::vector<uint32_t> direct_indexed_fields;
-  std::vector<uint32_t> ranges;
-  uint32_t max_msg_index = 0;
-
-  auto add_directly_indexed_field = [&](uint32_t field_id, uint32_t msg_id) {
-    PERFETTO_DCHECK(field_id > 0 && field_id < kDirectlyIndexLimit);
-    direct_indexed_fields.resize(std::max(direct_indexed_fields.size(),
-                                          static_cast<size_t>(field_id) + 1));
-    direct_indexed_fields[field_id] = kAllowed | msg_id;
-  };
-
-  auto add_range = [&](uint32_t id_start, uint32_t id_end, uint32_t msg_id) {
-    PERFETTO_DCHECK(id_end > id_start);
-    PERFETTO_DCHECK(id_start >= kDirectlyIndexLimit);
-    ranges.emplace_back(id_start);
-    ranges.emplace_back(id_end);
-    ranges.emplace_back(kAllowed | msg_id);
-  };
-
-  for (size_t i = 0; i < words.size(); ++i) {
-    const uint32_t word = words[i];
-    const bool has_next_word = i < words.size() - 1;
-    const uint32_t opcode = word & 0x7u;
-    const uint32_t field_id = word >> 3;
-
-    if (field_id == 0 && opcode != kFilterOpcode_EndOfMessage) {
-      PERFETTO_DLOG("bytecode error @ word %zu, invalid field id (0)", i);
-      return false;
-    }
-
-    if (opcode == kFilterOpcode_SimpleField ||
-        opcode == kFilterOpcode_NestedField) {
-      // Field words are organized as follow:
-      // MSB: 1 if allowed, 0 if not allowed.
-      // Remaining bits:
-      //   Message index in the case of nested (non-simple) messages.
-      //   0x7f..f in the case of simple messages.
-      uint32_t msg_id;
-      if (opcode == kFilterOpcode_SimpleField) {
-        msg_id = kSimpleField;
-      } else {  // FILTER_OPCODE_NESTED_FIELD
-        // The next word in the bytecode contains the message index.
-        if (!has_next_word) {
-          PERFETTO_DLOG("bytecode error @ word %zu: unterminated nested field",
-                        i);
-          return false;
-        }
-        msg_id = words[++i];
-        max_msg_index = std::max(max_msg_index, msg_id);
-      }
-
-      if (field_id < kDirectlyIndexLimit) {
-        add_directly_indexed_field(field_id, msg_id);
-      } else {
-        // In the case of a large field id (rare) we waste an extra word and
-        // represent it as a range. Doesn't make sense to introduce extra
-        // complexity to deal with rare cases like this.
-        add_range(field_id, field_id + 1, msg_id);
-      }
-    } else if (opcode == kFilterOpcode_SimpleFieldRange) {
-      if (!has_next_word) {
-        PERFETTO_DLOG("bytecode error @ word %zu: unterminated range", i);
-        return false;
-      }
-      const uint32_t range_len = words[++i];
-      const uint32_t range_end = field_id + range_len;  // STL-style, excl.
-      uint32_t id = field_id;
-
-      // Here's the subtle complexity: at the bytecode level, we don't know
-      // anything about the kDirectlyIndexLimit. It is legit to define a range
-      // that spans across the direct-indexing threshold (e.g. 126-132). In that
-      // case we want to add all the elements < the indexing to the O(1) bucket
-      // and add only the remaining range as a non-indexed range.
-      for (; id < range_end && id < kDirectlyIndexLimit; ++id)
-        add_directly_indexed_field(id, kAllowed | kSimpleField);
-      PERFETTO_DCHECK(id >= kDirectlyIndexLimit || id == range_end);
-      if (id < range_end)
-        add_range(id, range_end, kSimpleField);
-    } else if (opcode == kFilterOpcode_EndOfMessage) {
-      // For each message append:
-      // 1. The "header" word telling how many directly indexed fields there
-      //    are.
-      // 2. The words for the directly indexed fields (id < 128).
-      // 3. The rest of the fields, encoded as ranges.
-      // Also update the |message_offset_| index to remember the word offset for
-      // the current message.
-      message_offset_.emplace_back(static_cast<uint32_t>(words_.size()));
-      words_.emplace_back(static_cast<uint32_t>(direct_indexed_fields.size()));
-      words_.insert(words_.end(), direct_indexed_fields.begin(),
-                    direct_indexed_fields.end());
-      words_.insert(words_.end(), ranges.begin(), ranges.end());
-      direct_indexed_fields.clear();
-      ranges.clear();
-    } else {
-      PERFETTO_DLOG("bytecode error @ word %zu: invalid opcode (%x)", i, word);
-      return false;
-    }
-  }  // (for word in bytecode).
-
-  if (max_msg_index > 0 && max_msg_index >= message_offset_.size()) {
-    PERFETTO_DLOG(
-        "bytecode error: a message index (%u) is out of range "
-        "(num_messages=%zu)",
-        max_msg_index, message_offset_.size());
-    return false;
-  }
-
-  // Add a final entry to |message_offset_| so we can tell where the last
-  // message ends without an extra branch in the Query() hotpath.
-  message_offset_.emplace_back(static_cast<uint32_t>(words_.size()));
-
-  return true;
-}
-
-FilterBytecodeParser::QueryResult FilterBytecodeParser::Query(
-    uint32_t msg_index,
-    uint32_t field_id) {
-  FilterBytecodeParser::QueryResult res{false, 0u};
-  if (static_cast<uint64_t>(msg_index) + 1 >=
-      static_cast<uint64_t>(message_offset_.size())) {
-    return res;
-  }
-  const uint32_t start_offset = message_offset_[msg_index];
-  // These are DCHECKs and not just CHECKS because the |words_| is populated
-  // by the LoadInternal call above. These cannot be violated with a malformed
-  // bytecode.
-  PERFETTO_DCHECK(start_offset < words_.size());
-  const uint32_t* word = &words_[start_offset];
-  const uint32_t end_off = message_offset_[msg_index + 1];
-  const uint32_t* const end = words_.data() + end_off;
-  PERFETTO_DCHECK(end > word && end <= words_.data() + words_.size());
-  const uint32_t num_directly_indexed = *(word++);
-  PERFETTO_DCHECK(num_directly_indexed <= kDirectlyIndexLimit);
-  PERFETTO_DCHECK(word + num_directly_indexed <= end);
-  uint32_t field_state = 0;
-  if (PERFETTO_LIKELY(field_id < num_directly_indexed)) {
-    PERFETTO_DCHECK(&word[field_id] < end);
-    field_state = word[field_id];
-  } else {
-    for (word = word + num_directly_indexed; word + 2 < end;) {
-      const uint32_t range_start = *(word++);
-      const uint32_t range_end = *(word++);
-      const uint32_t range_state = *(word++);
-      if (field_id >= range_start && field_id < range_end) {
-        field_state = range_state;
-        break;
-      }
-    }  // for (word in ranges)
-  }    // if (field_id >= num_directly_indexed)
-
-  res.allowed = (field_state & kAllowed) != 0;
-  res.nested_msg_index = field_state & ~kAllowed;
-  PERFETTO_DCHECK(res.simple_field() ||
-                  res.nested_msg_index < message_offset_.size() - 1);
-  return res;
-}
-
-}  // namespace protozero
-// gen_amalgamated begin source: src/protozero/filtering/message_filter.cc
-// gen_amalgamated begin header: src/protozero/filtering/message_filter.h
-// gen_amalgamated begin header: src/protozero/filtering/message_tokenizer.h
-/*
- * Copyright (C) 2021 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef SRC_PROTOZERO_FILTERING_MESSAGE_TOKENIZER_H_
-#define SRC_PROTOZERO_FILTERING_MESSAGE_TOKENIZER_H_
-
-#include <stdint.h>
-
-// gen_amalgamated expanded: #include "perfetto/base/compiler.h"
-// gen_amalgamated expanded: #include "perfetto/base/logging.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/proto_utils.h"
-
-namespace protozero {
-
-// A helper class for schema-less tokenizing of protobuf messages.
-// This class takes a stream of proto-encoded bytes, pushed one by one in input
-// via Push(octet), and returns a stream of tokens (each Push() call can return
-// 0 or 1 token).
-// A "token" contains metadata about a field, specifically: its ID, its wire
-// type and:
-//  - For varint and fixed32/64 fields: its payload.
-//  - For string and bytes fields: the length of its payload.
-//    In this case the caller is supposed to "eat" those N bytes before calling
-//    Push() again.
-// Note that this class cannot differentiate between a string/bytes field or
-// a submessage, because they are encoded in the same way. The caller is
-// supposed to know whether a field can be recursed into by just keep calling
-// Push() or is a string that should be skipped.
-// This is inline to allow the compiler to see through the Push method and
-// avoid a function call for each byte.
-class MessageTokenizer {
- public:
-  struct Token {
-    uint32_t field_id;  // 0 == not valid.
-    proto_utils::ProtoWireType type;
-
-    // For kLengthDelimited, |value| represent the length of the payload.
-    uint64_t value;
-
-    inline bool valid() const { return field_id != 0; }
-    bool operator==(const Token& o) const {
-      return field_id == o.field_id && type == o.type && value == o.value;
-    }
-  };
-
-  // Pushes a byte in input and returns a token, only when getting to the last
-  // byte of each field. Specifically:
-  // - For varint and fixed32 fields, the Token is returned after the last byte
-  //   of the numeric payload is pushed.
-  // - For length-delimited fields, this returns after the last byte of the
-  //   length is pushed (i.e. right before the payload starts). The caller is
-  //   expected to either skip the next |value| bytes (in the case of a string
-  //   or bytes fields) or keep calling Push, in the case of a submessage.
-  inline Token Push(uint8_t octet) {
-    using protozero::proto_utils::ProtoWireType;
-
-    // Parsing a fixed32/64 field is the only case where we don't have to do
-    // any varint decoding. This is why this block is before the remaining
-    // switch statement below (all the rest is a varint).
-    if (PERFETTO_UNLIKELY(state_ == kFixedIntValue)) {
-      PERFETTO_DCHECK(fixed_int_bits_ == 32 || fixed_int_bits_ == 64);
-      fixed_int_value_ |= static_cast<uint64_t>(octet) << fixed_int_shift_;
-      fixed_int_shift_ += 8;
-      if (fixed_int_shift_ < fixed_int_bits_)
-        return Token{};  // Intermediate byte of a fixed32/64.
-      auto wire_type = fixed_int_bits_ == 32 ? ProtoWireType::kFixed32
-                                             : ProtoWireType::kFixed64;
-      uint64_t fixed_int_value = fixed_int_value_;
-      fixed_int_value_ = fixed_int_shift_ = fixed_int_bits_ = 0;
-      state_ = kFieldPreamble;
-      return Token{field_id_, wire_type, fixed_int_value};
-    }
-
-    // At this point either we are: (i) parsing a field preamble; (ii) parsing a
-    // varint field paylod; (iii) parsing the length of a length-delimited
-    // field. In all cases, we need to decode a varint before proceeding.
-    varint_ |= static_cast<uint64_t>(octet & 0x7F) << varint_shift_;
-    if (octet & 0x80) {
-      varint_shift_ += 7;
-      if (PERFETTO_UNLIKELY(varint_shift_ >= 64)) {
-        varint_shift_ = 0;
-        state_ = kInvalidVarInt;
-      }
-      return Token{};  // Still parsing a varint.
-    }
-
-    uint64_t varint = varint_;
-    varint_ = 0;
-    varint_shift_ = 0;
-
-    switch (state_) {
-      case kFieldPreamble: {
-        auto field_type = static_cast<uint32_t>(varint & 7u);  // 7 = 0..0111
-        field_id_ = static_cast<uint32_t>(varint >> 3);
-
-        // The field type is legit, now check it's well formed and within
-        // boundaries.
-        if (field_type == static_cast<uint32_t>(ProtoWireType::kVarInt)) {
-          state_ = kVarIntValue;
-        } else if (field_type ==
-                       static_cast<uint32_t>(ProtoWireType::kFixed32) ||
-                   field_type ==
-                       static_cast<uint32_t>(ProtoWireType::kFixed64)) {
-          state_ = kFixedIntValue;
-          fixed_int_shift_ = 0;
-          fixed_int_value_ = 0;
-          fixed_int_bits_ =
-              field_type == static_cast<uint32_t>(ProtoWireType::kFixed32) ? 32
-                                                                           : 64;
-        } else if (field_type ==
-                   static_cast<uint32_t>(ProtoWireType::kLengthDelimited)) {
-          state_ = kLenDelimited;
-        } else {
-          state_ = kInvalidFieldType;
-        }
-        return Token{};
-      }
-
-      case kVarIntValue: {
-        // Return the varint field payload and go back to the next field.
-        state_ = kFieldPreamble;
-        return Token{field_id_, ProtoWireType::kVarInt, varint};
-      }
-
-      case kLenDelimited: {
-        const auto payload_len = varint;
-        if (payload_len > protozero::proto_utils::kMaxMessageLength) {
-          state_ = kMessageTooBig;
-          return Token{};
-        }
-        state_ = kFieldPreamble;
-        // At this point the caller is expected to consume the next
-        // |payload_len| bytes.
-        return Token{field_id_, ProtoWireType::kLengthDelimited, payload_len};
-      }
-
-      case kFixedIntValue:
-        // Unreacheable because of the if before the switch.
-        PERFETTO_DCHECK(false);
-        break;
-
-      // Unrecoverable error states.
-      case kInvalidFieldType:
-      case kMessageTooBig:
-      case kInvalidVarInt:
-        break;
-    }  // switch(state_)
-
-    return Token{};  // Keep GCC happy.
-  }
-
-  // Returns true if the tokenizer FSM has reached quiescence (i.e. if we are
-  // NOT in the middle of parsing a field).
-  bool idle() const {
-    return state_ == kFieldPreamble && varint_shift_ == 0 &&
-           fixed_int_shift_ == 0;
-  }
-
-  // Only for reporting parser errors in the trace.
-  uint32_t state() const { return static_cast<uint32_t>(state_); }
-
- private:
-  enum State {
-    kFieldPreamble = 0,  // Parsing the varint for the field preamble.
-    kVarIntValue = 1,    // Parsing the payload of a varint field.
-    kFixedIntValue = 2,  // Parsing the payload of a fixed32/64 field.
-    kLenDelimited = 3,   // Parsing the length of a length-delimited field.
-
-    // Unrecoverable error states:
-    kInvalidFieldType = 4,  // Encountered an invalid field type.
-    kMessageTooBig = 5,     // Size of the length delimited message was too big.
-    kInvalidVarInt = 6,     // Varint larger than 64 bits.
-  };
-
-  State state_ = kFieldPreamble;
-  uint32_t field_id_ = 0;
-  uint64_t varint_ = 0;
-  uint32_t varint_shift_ = 0;
-  uint32_t fixed_int_shift_ = 0;
-  uint32_t fixed_int_bits_ = 0;
-  uint64_t fixed_int_value_ = 0;
-};
-
-}  // namespace protozero
-
-#endif  // SRC_PROTOZERO_FILTERING_MESSAGE_TOKENIZER_H_
-/*
- * Copyright (C) 2021 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef SRC_PROTOZERO_FILTERING_MESSAGE_FILTER_H_
-#define SRC_PROTOZERO_FILTERING_MESSAGE_FILTER_H_
-
-#include <stdint.h>
-
-#include <memory>
-#include <string>
-#include <unordered_map>
-
-// gen_amalgamated expanded: #include "src/protozero/filtering/filter_bytecode_parser.h"
-// gen_amalgamated expanded: #include "src/protozero/filtering/message_tokenizer.h"
-
-namespace protozero {
-
-// A class to filter binary-encoded proto messages using an allow-list of field
-// ids, also known as "filter bytecode". The filter determines which fields are
-// allowed to be passed through in output and strips all the other fields.
-// See go/trace-filtering for full design.
-// This class takes in input:
-// 1) The filter bytecode, loaded once via the LoadFilterBytecode() method.
-// 2) A proto-encoded binary message. The message doesn't have to be contiguous,
-//    it can be passed as an array of arbitrarily chunked fragments.
-// The FilterMessage*() method returns in output a proto message, stripping out
-// all unknown fields. If the input is malformed (e.g., unknown proto field wire
-// types, lengths out of bound) the whole filtering failed and the |error| flag
-// of the FilteredMessage object is set to true.
-// The filtering operation is based on rewriting a copy of the message into a
-// self-allocated buffer, which is then returned in the output. The input buffer
-// is NOT altered.
-// Note also that the process of rewriting the protos gets rid of most redundant
-// varint encoding (if present). So even if all fields are allow-listed, the
-// output might NOT be bitwise identical to the input (but it will be
-// semantically equivalent).
-// Furthermore the enable_field_usage_tracking() method allows to keep track of
-// a histogram of allowed / denied fields. It slows down filtering and is
-// intended only on host tools.
-class MessageFilter {
- public:
-  MessageFilter();
-  ~MessageFilter();
-
-  struct InputSlice {
-    const void* data;
-    size_t len;
-  };
-
-  struct FilteredMessage {
-    FilteredMessage(std::unique_ptr<uint8_t[]> d, size_t s)
-        : data(std::move(d)), size(s) {}
-    std::unique_ptr<uint8_t[]> data;
-    size_t size;  // The used bytes in |data|. This is <= sizeof(data).
-    bool error = false;
-  };
-
-  // Loads the filter bytecode that will be used to filter any subsequent
-  // message. Must be called before the first call to FilterMessage*().
-  // |filter_data| must point to a byte buffer for a proto-encoded ProtoFilter
-  // message (see proto_filter.proto).
-  bool LoadFilterBytecode(const void* filter_data, size_t len);
-
-  // This affects the filter starting point of the subsequent FilterMessage*()
-  // calls. By default the filtering process starts from the message @ index 0,
-  // the root message passed to proto_filter when generating the bytecode
-  // (in typical tracing use-cases, this is perfetto.protos.Trace). However, the
-  // caller (TracingServiceImpl) might want to filter packets from the 2nd level
-  // (perfetto.protos.TracePacket) because the root level is pre-pended after
-  // the fact. This call allows to change the root message for the filter.
-  // The argument |field_ids| is an array of proto field ids and determines the
-  // path to the new root. For instance, in the case of [1,2,3] SetFilterRoot
-  // will identify the sub-message for the field "root.1.2.3" and use that.
-  // In order for this to succeed all the fields in the path must be allowed
-  // in the filter and must be a nested message type.
-  bool SetFilterRoot(const uint32_t* field_ids, size_t num_fields);
-
-  // Takes an input message, fragmented in arbitrary slices, and returns a
-  // filtered message in output.
-  FilteredMessage FilterMessageFragments(const InputSlice*, size_t num_slices);
-
-  // Helper for tests, where the input is a contiguous buffer.
-  FilteredMessage FilterMessage(const void* data, size_t len) {
-    InputSlice slice{data, len};
-    return FilterMessageFragments(&slice, 1);
-  }
-
-  // When enabled returns a map of "field path" to "usage counter".
-  // The key (std::string) is a binary buffer (i.e. NOT an ASCII/UTF-8 string)
-  // which contains a varint for each field. Consider the following:
-  // message Root { Sub1 f1 = 1; };
-  // message Sub1 { Sub2 f2 = 7;}
-  // message Sub2 { string f3 = 5; }
-  // The field .f1.f2.f3 will be encoded as \x01\0x07\x05.
-  // The value is the number of times that field has been encountered. If the
-  // field is not allow-listed in the bytecode (the field is stripped in output)
-  // the count will be negative.
-  void enable_field_usage_tracking(bool x) { track_field_usage_ = x; }
-  const std::unordered_map<std::string, int32_t>& field_usage() const {
-    return field_usage_;
-  }
-
-  // Exposed only for DCHECKS in TracingServiceImpl.
-  uint32_t root_msg_index() { return root_msg_index_; }
-
- private:
-  // This is called by FilterMessageFragments().
-  // Inlining allows the compiler turn the per-byte call/return into a for loop,
-  // while, at the same time, keeping the code easy to read and reason about.
-  // It gives a 20-25% speedup (265ms vs 215ms for a 25MB trace).
-  void FilterOneByte(uint8_t octet) PERFETTO_ALWAYS_INLINE;
-
-  // No-inline because this is a slowpath (only when usage tracking is enabled).
-  void IncrementCurrentFieldUsage(uint32_t field_id,
-                                  bool allowed) PERFETTO_NO_INLINE;
-
-  // Gets into an error state which swallows all the input and emits no output.
-  void SetUnrecoverableErrorState();
-
-  // We keep track of the the nest of messages in a stack. Each StackState
-  // object corresponds to a level of nesting in the proto message structure.
-  // Every time a new field of type len-delimited that has a corresponding
-  // sub-message in the bytecode is encountered, a new StackState is pushed in
-  // |stack_|. stack_[0] is a sentinel to prevent over-popping without adding
-  // extra branches in the fastpath.
-  // |stack_|. stack_[1] is the state of the root message.
-  struct StackState {
-    uint32_t in_bytes = 0;  // Number of input bytes processed.
-
-    // When |in_bytes| reaches this value, the current state should be popped.
-    // This is set when recursing into nested submessages. This is 0 only for
-    // stack_[0] (we don't know the size of the root message upfront).
-    uint32_t in_bytes_limit = 0;
-
-    // This is set when a len-delimited message is encountered, either a string
-    // or a nested submessage that is NOT allow-listed in the bytecode.
-    // This causes input bytes to be consumed without being parsed from the
-    // input stream. If |passthrough_eaten_bytes| == true, they will be copied
-    // as-is in output (e.g. in the case of an allowed string/bytes field).
-    uint32_t eat_next_bytes = 0;
-
-    // Keeps tracks of the stream_writer output counter (out_.written()) then
-    // the StackState is pushed. This is used to work out, when popping, how
-    // many bytes have been written for the current submessage.
-    uint32_t out_bytes_written_at_start = 0;
-
-    uint32_t field_id = 0;   // The proto field id for the current message.
-    uint32_t msg_index = 0;  // The index of the message filter in the bytecode.
-
-    // This is a pointer to the proto preamble for the current submessage
-    // (it's nullptr for stack_[0] and non-null elsewhere). This will be filled
-    // with the actual size of the message (out_.written() -
-    // |out_bytes_written_at_start|) when finishing (popping) the message.
-    // This must be filled using WriteRedundantVarint(). Note that the
-    // |size_field_len| is variable and depends on the actual length of the
-    // input message. If the output message has roughly the same size of the
-    // input message, the length will not be redundant.
-    // In other words: the length of the field is reserved when the submessage
-    // starts. At that point we know the upper-bound for the output message
-    // (a filtered submessage can be <= the original one, but not >). So we
-    // reserve as many bytes it takes to write the input length in varint.
-    // Then, when the message is finalized and we know the actual output size
-    // we backfill the field.
-    // Consider the example of a submessage where the input size = 130 (>127,
-    // 2 varint bytes) and the output is 120 bytes. The length will be 2 bytes
-    // wide even though could have been encoded with just one byte.
-    uint8_t* size_field = nullptr;
-    uint32_t size_field_len = 0;
-
-    // When true the next |eat_next_bytes| are copied as-is in output.
-    // It seems that keeping this field at the end rather than next to
-    // |eat_next_bytes| makes the filter a little (but measurably) faster.
-    // (likely something related with struct layout vs cache sizes).
-    bool passthrough_eaten_bytes = false;
-  };
-
-  uint32_t out_written() { return static_cast<uint32_t>(out_ - &out_buf_[0]); }
-
-  std::unique_ptr<uint8_t[]> out_buf_;
-  uint8_t* out_ = nullptr;
-  uint8_t* out_end_ = nullptr;
-  uint32_t root_msg_index_ = 0;
-
-  FilterBytecodeParser filter_;
-  MessageTokenizer tokenizer_;
-  std::vector<StackState> stack_;
-
-  bool error_ = false;
-  bool track_field_usage_ = false;
-  std::unordered_map<std::string, int32_t> field_usage_;
-};
-
-}  // namespace protozero
-
-#endif  // SRC_PROTOZERO_FILTERING_MESSAGE_FILTER_H_
-/*
- * Copyright (C) 2021 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-// gen_amalgamated expanded: #include "src/protozero/filtering/message_filter.h"
-
-// gen_amalgamated expanded: #include "perfetto/base/logging.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/proto_utils.h"
-
-namespace protozero {
-
-namespace {
-
-// Inline helpers to append proto fields in output. They are the equivalent of
-// the protozero::Message::AppendXXX() fields but don't require building and
-// maintaining a full protozero::Message object or dealing with scattered
-// output slices.
-// All these functions assume there is enough space in the output buffer, which
-// should be always the case assuming that we don't end up generating more
-// output than input.
-
-inline void AppendVarInt(uint32_t field_id, uint64_t value, uint8_t** out) {
-  *out = proto_utils::WriteVarInt(proto_utils::MakeTagVarInt(field_id), *out);
-  *out = proto_utils::WriteVarInt(value, *out);
-}
-
-// For fixed32 / fixed64.
-template <typename INT_T /* uint32_t | uint64_t*/>
-inline void AppendFixed(uint32_t field_id, INT_T value, uint8_t** out) {
-  *out = proto_utils::WriteVarInt(proto_utils::MakeTagFixed<INT_T>(field_id),
-                                  *out);
-  memcpy(*out, &value, sizeof(value));
-  *out += sizeof(value);
-}
-
-// For length-delimited (string, bytes) fields. Note: this function appends only
-// the proto preamble and the varint field that states the length of the payload
-// not the payload itself.
-// In the case of submessages, the caller needs to re-write the length at the
-// end in the in the returned memory area.
-// The problem here is that, because of filtering, the length of a submessage
-// might be < original length (the original length is still an upper-bound).
-// Returns a pair with: (1) the pointer where the final length should be written
-// into, (2) the length of the size field.
-// The caller must write a redundant varint to match the original size (i.e.
-// needs to use WriteRedundantVarInt()).
-inline std::pair<uint8_t*, uint32_t> AppendLenDelim(uint32_t field_id,
-                                                    uint32_t len,
-                                                    uint8_t** out) {
-  *out = proto_utils::WriteVarInt(proto_utils::MakeTagLengthDelimited(field_id),
-                                  *out);
-  uint8_t* size_field_start = *out;
-  *out = proto_utils::WriteVarInt(len, *out);
-  const size_t size_field_len = static_cast<size_t>(*out - size_field_start);
-  return std::make_pair(size_field_start, size_field_len);
-}
-}  // namespace
-
-MessageFilter::MessageFilter() {
-  // Push a state on the stack for the implicit root message.
-  stack_.emplace_back();
-}
-
-MessageFilter::~MessageFilter() = default;
-
-bool MessageFilter::LoadFilterBytecode(const void* filter_data, size_t len) {
-  return filter_.Load(filter_data, len);
-}
-
-bool MessageFilter::SetFilterRoot(const uint32_t* field_ids,
-                                  size_t num_fields) {
-  uint32_t root_msg_idx = 0;
-  for (const uint32_t* it = field_ids; it < field_ids + num_fields; ++it) {
-    uint32_t field_id = *it;
-    auto res = filter_.Query(root_msg_idx, field_id);
-    if (!res.allowed || res.simple_field())
-      return false;
-    root_msg_idx = res.nested_msg_index;
-  }
-  root_msg_index_ = root_msg_idx;
-  return true;
-}
-
-MessageFilter::FilteredMessage MessageFilter::FilterMessageFragments(
-    const InputSlice* slices,
-    size_t num_slices) {
-  // First compute the upper bound for the output. The filtered message cannot
-  // be > the original message.
-  uint32_t total_len = 0;
-  for (size_t i = 0; i < num_slices; ++i)
-    total_len += slices[i].len;
-  out_buf_.reset(new uint8_t[total_len]);
-  out_ = out_buf_.get();
-  out_end_ = out_ + total_len;
-
-  // Reset the parser state.
-  tokenizer_ = MessageTokenizer();
-  error_ = false;
-  stack_.clear();
-  stack_.resize(2);
-  // stack_[0] is a sentinel and should never be hit in nominal cases. If we
-  // end up there we will just keep consuming the input stream and detecting
-  // at the end, without hurting the fastpath.
-  stack_[0].in_bytes_limit = UINT32_MAX;
-  stack_[0].eat_next_bytes = UINT32_MAX;
-  // stack_[1] is the actual root message.
-  stack_[1].in_bytes_limit = total_len;
-  stack_[1].msg_index = root_msg_index_;
-
-  // Process the input data and write the output.
-  for (size_t slice_idx = 0; slice_idx < num_slices; ++slice_idx) {
-    const InputSlice& slice = slices[slice_idx];
-    const uint8_t* data = static_cast<const uint8_t*>(slice.data);
-    for (size_t i = 0; i < slice.len; ++i)
-      FilterOneByte(data[i]);
-  }
-
-  // Construct the output object.
-  PERFETTO_CHECK(out_ >= out_buf_.get() && out_ <= out_end_);
-  auto used_size = static_cast<size_t>(out_ - out_buf_.get());
-  FilteredMessage res{std::move(out_buf_), used_size};
-  res.error = error_;
-  if (stack_.size() != 1 || !tokenizer_.idle() ||
-      stack_[0].in_bytes != total_len) {
-    res.error = true;
-  }
-  return res;
-}
-
-void MessageFilter::FilterOneByte(uint8_t octet) {
-  PERFETTO_DCHECK(!stack_.empty());
-
-  auto* state = &stack_.back();
-  StackState next_state{};
-  bool push_next_state = false;
-
-  if (state->eat_next_bytes > 0) {
-    // This is the case where the previous tokenizer_.Push() call returned a
-    // length delimited message which is NOT a submessage (a string or a bytes
-    // field). We just want to consume it, and pass it through in output
-    // if the field was allowed.
-    --state->eat_next_bytes;
-    if (state->passthrough_eaten_bytes)
-      *(out_++) = octet;
-  } else {
-    MessageTokenizer::Token token = tokenizer_.Push(octet);
-    // |token| will not be valid() in most cases and this is WAI. When pushing
-    // a varint field, only the last byte yields a token, all the other bytes
-    // return an invalid token, they just update the internal tokenizer state.
-    if (token.valid()) {
-      auto filter = filter_.Query(state->msg_index, token.field_id);
-      switch (token.type) {
-        case proto_utils::ProtoWireType::kVarInt:
-          if (filter.allowed && filter.simple_field())
-            AppendVarInt(token.field_id, token.value, &out_);
-          break;
-        case proto_utils::ProtoWireType::kFixed32:
-          if (filter.allowed && filter.simple_field())
-            AppendFixed(token.field_id, static_cast<uint32_t>(token.value),
-                        &out_);
-          break;
-        case proto_utils::ProtoWireType::kFixed64:
-          if (filter.allowed && filter.simple_field())
-            AppendFixed(token.field_id, static_cast<uint64_t>(token.value),
-                        &out_);
-          break;
-        case proto_utils::ProtoWireType::kLengthDelimited:
-          // Here we have two cases:
-          // A. A simple string/bytes field: we just want to consume the next
-          //    bytes (the string payload), optionally passing them through in
-          //    output if the field is allowed.
-          // B. This is a nested submessage. In this case we want to recurse and
-          //    push a new state on the stack.
-          // Note that we can't tell the difference between a
-          // "non-allowed string" and a "non-allowed submessage". But it doesn't
-          // matter because in both cases we just want to skip the next N bytes.
-          const auto submessage_len = static_cast<uint32_t>(token.value);
-          auto in_bytes_left = state->in_bytes_limit - state->in_bytes - 1;
-          if (PERFETTO_UNLIKELY(submessage_len > in_bytes_left)) {
-            // This is a malicious / malformed string/bytes/submessage that
-            // claims to be larger than the outer message that contains it.
-            return SetUnrecoverableErrorState();
-          }
-
-          if (filter.allowed && !filter.simple_field() && submessage_len > 0) {
-            // submessage_len == 0 is the edge case of a message with a 0-len
-            // (but present) submessage. In this case, if allowed, we don't want
-            // to push any further state (doing so would desync the FSM) but we
-            // still want to emit it.
-            // At this point |submessage_len| is only an upper bound. The
-            // final message written in output can be <= the one in input,
-            // only some of its fields might be allowed (also remember that
-            // this class implicitly removes redundancy varint encoding of
-            // len-delimited field lengths). The final length varint (the
-            // return value of AppendLenDelim()) will be filled when popping
-            // from |stack_|.
-            auto size_field =
-                AppendLenDelim(token.field_id, submessage_len, &out_);
-            push_next_state = true;
-            next_state.field_id = token.field_id;
-            next_state.msg_index = filter.nested_msg_index;
-            next_state.in_bytes_limit = submessage_len;
-            next_state.size_field = size_field.first;
-            next_state.size_field_len = size_field.second;
-            next_state.out_bytes_written_at_start = out_written();
-          } else {
-            // A string or bytes field, or a 0 length submessage.
-            state->eat_next_bytes = submessage_len;
-            state->passthrough_eaten_bytes = filter.allowed;
-            if (filter.allowed)
-              AppendLenDelim(token.field_id, submessage_len, &out_);
-          }
-          break;
-      }  // switch(type)
-
-      if (PERFETTO_UNLIKELY(track_field_usage_)) {
-        IncrementCurrentFieldUsage(token.field_id, filter.allowed);
-      }
-    }  // if (token.valid)
-  }    // if (eat_next_bytes == 0)
-
-  ++state->in_bytes;
-  while (state->in_bytes >= state->in_bytes_limit) {
-    PERFETTO_DCHECK(state->in_bytes == state->in_bytes_limit);
-    push_next_state = false;
-
-    // We can't possibly write more than we read.
-    const uint32_t msg_bytes_written = static_cast<uint32_t>(
-        out_written() - state->out_bytes_written_at_start);
-    PERFETTO_DCHECK(msg_bytes_written <= state->in_bytes_limit);
-
-    // Backfill the length field of the
-    proto_utils::WriteRedundantVarInt(msg_bytes_written, state->size_field,
-                                      state->size_field_len);
-
-    const uint32_t in_bytes_processes_for_last_msg = state->in_bytes;
-    stack_.pop_back();
-    PERFETTO_CHECK(!stack_.empty());
-    state = &stack_.back();
-    state->in_bytes += in_bytes_processes_for_last_msg;
-    if (PERFETTO_UNLIKELY(!tokenizer_.idle())) {
-      // If we hit this case, it means that we got to the end of a submessage
-      // while decoding a field. We can't recover from this and we don't want to
-      // propagate a broken sub-message.
-      return SetUnrecoverableErrorState();
-    }
-  }
-
-  if (push_next_state) {
-    PERFETTO_DCHECK(tokenizer_.idle());
-    stack_.emplace_back(std::move(next_state));
-    state = &stack_.back();
-  }
-}
-
-void MessageFilter::SetUnrecoverableErrorState() {
-  error_ = true;
-  stack_.clear();
-  stack_.resize(1);
-  auto& state = stack_[0];
-  state.eat_next_bytes = UINT32_MAX;
-  state.in_bytes_limit = UINT32_MAX;
-  state.passthrough_eaten_bytes = false;
-  out_ = out_buf_.get();  // Reset the write pointer.
-}
-
-void MessageFilter::IncrementCurrentFieldUsage(uint32_t field_id,
-                                               bool allowed) {
-  // Slowpath. Used mainly in offline tools and tests to workout used fields in
-  // a proto.
-  PERFETTO_DCHECK(track_field_usage_);
-
-  // Field path contains a concatenation of varints, one for each nesting level.
-  // e.g. y in message Root { Sub x = 2; }; message Sub { SubSub y = 7; }
-  // is encoded as [varint(2) + varint(7)].
-  // We use varint to take the most out of SSO (small string opt). In most cases
-  // the path will fit in the on-stack 22 bytes, requiring no heap.
-  std::string field_path;
-
-  auto append_field_id = [&field_path](uint32_t id) {
-    uint8_t buf[10];
-    uint8_t* end = proto_utils::WriteVarInt(id, buf);
-    field_path.append(reinterpret_cast<char*>(buf),
-                      static_cast<size_t>(end - buf));
-  };
-
-  // Append all the ancestors IDs from the state stack.
-  // The first entry of the stack has always ID 0 and we skip it (we don't know
-  // the ID of the root message itself).
-  PERFETTO_DCHECK(stack_.size() >= 2 && stack_[1].field_id == 0);
-  for (size_t i = 2; i < stack_.size(); ++i)
-    append_field_id(stack_[i].field_id);
-  // Append the id of the field in the current message.
-  append_field_id(field_id);
-  field_usage_[field_path] += allowed ? 1 : -1;
-}
-
-}  // namespace protozero
-// gen_amalgamated begin source: src/tracing/core/metatrace_writer.cc
-// gen_amalgamated begin header: src/tracing/core/metatrace_writer.h
-/*
- * Copyright (C) 2019 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef SRC_TRACING_CORE_METATRACE_WRITER_H_
-#define SRC_TRACING_CORE_METATRACE_WRITER_H_
-
-#include <functional>
-#include <memory>
-
-// gen_amalgamated expanded: #include "perfetto/ext/base/metatrace.h"
-// gen_amalgamated expanded: #include "perfetto/ext/base/thread_checker.h"
-// gen_amalgamated expanded: #include "perfetto/ext/base/weak_ptr.h"
-
-namespace perfetto {
-
-namespace base {
-class TaskRunner;
-}
-
-class TraceWriter;
-
-// Complements the base::metatrace infrastructure.
-// It hooks a callback to metatrace::Enable() and writes metatrace events into
-// a TraceWriter whenever the metatrace ring buffer is half full.
-// It is safe to create and attempt to start multiple instances of this class,
-// however only the first one will succeed because the metatrace framework
-// doesn't support multiple instances.
-// This class is defined here (instead of directly in src/probes/) so it can
-// be reused by other components (e.g. heapprofd).
-class MetatraceWriter {
- public:
-  static constexpr char kDataSourceName[] = "perfetto.metatrace";
-
-  MetatraceWriter();
-  ~MetatraceWriter();
-
-  MetatraceWriter(const MetatraceWriter&) = delete;
-  MetatraceWriter& operator=(const MetatraceWriter&) = delete;
-  MetatraceWriter(MetatraceWriter&&) = delete;
-  MetatraceWriter& operator=(MetatraceWriter&&) = delete;
-
-  void Enable(base::TaskRunner*, std::unique_ptr<TraceWriter>, uint32_t tags);
-  void Disable();
-  void WriteAllAndFlushTraceWriter(std::function<void()> callback);
-
- private:
-  void WriteAllAvailableEvents();
-
-  bool started_ = false;
-  base::TaskRunner* task_runner_ = nullptr;
-  std::unique_ptr<TraceWriter> trace_writer_;
-  PERFETTO_THREAD_CHECKER(thread_checker_)
-  base::WeakPtrFactory<MetatraceWriter> weak_ptr_factory_;  // Keep last.
-};
-
-}  // namespace perfetto
-
-#endif  // SRC_TRACING_CORE_METATRACE_WRITER_H_
-// gen_amalgamated begin header: gen/protos/perfetto/trace/perfetto/perfetto_metatrace.pbzero.h
-// Autogenerated by the ProtoZero compiler plugin. DO NOT EDIT.
-
-#ifndef PERFETTO_PROTOS_PROTOS_PERFETTO_TRACE_PERFETTO_PERFETTO_METATRACE_PROTO_H_
-#define PERFETTO_PROTOS_PROTOS_PERFETTO_TRACE_PERFETTO_PERFETTO_METATRACE_PROTO_H_
-
-#include <stddef.h>
-#include <stdint.h>
-
-// gen_amalgamated expanded: #include "perfetto/protozero/field_writer.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/message.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/packed_repeated_fields.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/proto_decoder.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/proto_utils.h"
-
-namespace perfetto {
-namespace protos {
-namespace pbzero {
-
-class PerfettoMetatrace_Arg;
-
-class PerfettoMetatrace_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/9, /*HAS_NONPACKED_REPEATED_FIELDS=*/true> {
- public:
-  PerfettoMetatrace_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit PerfettoMetatrace_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit PerfettoMetatrace_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_event_id() const { return at<1>().valid(); }
-  uint32_t event_id() const { return at<1>().as_uint32(); }
-  bool has_counter_id() const { return at<2>().valid(); }
-  uint32_t counter_id() const { return at<2>().as_uint32(); }
-  bool has_event_name() const { return at<8>().valid(); }
-  ::protozero::ConstChars event_name() const { return at<8>().as_string(); }
-  bool has_counter_name() const { return at<9>().valid(); }
-  ::protozero::ConstChars counter_name() const { return at<9>().as_string(); }
-  bool has_event_duration_ns() const { return at<3>().valid(); }
-  uint32_t event_duration_ns() const { return at<3>().as_uint32(); }
-  bool has_counter_value() const { return at<4>().valid(); }
-  int32_t counter_value() const { return at<4>().as_int32(); }
-  bool has_thread_id() const { return at<5>().valid(); }
-  uint32_t thread_id() const { return at<5>().as_uint32(); }
-  bool has_has_overruns() const { return at<6>().valid(); }
-  bool has_overruns() const { return at<6>().as_bool(); }
-  bool has_args() const { return at<7>().valid(); }
-  ::protozero::RepeatedFieldIterator<::protozero::ConstBytes> args() const { return GetRepeated<::protozero::ConstBytes>(7); }
-};
-
-class PerfettoMetatrace : public ::protozero::Message {
- public:
-  using Decoder = PerfettoMetatrace_Decoder;
-  enum : int32_t {
-    kEventIdFieldNumber = 1,
-    kCounterIdFieldNumber = 2,
-    kEventNameFieldNumber = 8,
-    kCounterNameFieldNumber = 9,
-    kEventDurationNsFieldNumber = 3,
-    kCounterValueFieldNumber = 4,
-    kThreadIdFieldNumber = 5,
-    kHasOverrunsFieldNumber = 6,
-    kArgsFieldNumber = 7,
-  };
-  using Arg = ::perfetto::protos::pbzero::PerfettoMetatrace_Arg;
-
-  using FieldMetadata_EventId =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      PerfettoMetatrace>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_EventId kEventId() { return {}; }
-  void set_event_id(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_EventId::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_CounterId =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      PerfettoMetatrace>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_CounterId kCounterId() { return {}; }
-  void set_counter_id(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_CounterId::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_EventName =
-    ::protozero::proto_utils::FieldMetadata<
-      8,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kString,
-      std::string,
-      PerfettoMetatrace>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_EventName kEventName() { return {}; }
-  void set_event_name(const char* data, size_t size) {
-    AppendBytes(FieldMetadata_EventName::kFieldId, data, size);
-  }
-  void set_event_name(std::string value) {
-    static constexpr uint32_t field_id = FieldMetadata_EventName::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kString>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_CounterName =
-    ::protozero::proto_utils::FieldMetadata<
-      9,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kString,
-      std::string,
-      PerfettoMetatrace>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_CounterName kCounterName() { return {}; }
-  void set_counter_name(const char* data, size_t size) {
-    AppendBytes(FieldMetadata_CounterName::kFieldId, data, size);
-  }
-  void set_counter_name(std::string value) {
-    static constexpr uint32_t field_id = FieldMetadata_CounterName::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kString>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_EventDurationNs =
-    ::protozero::proto_utils::FieldMetadata<
-      3,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      PerfettoMetatrace>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_EventDurationNs kEventDurationNs() { return {}; }
-  void set_event_duration_ns(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_EventDurationNs::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_CounterValue =
-    ::protozero::proto_utils::FieldMetadata<
-      4,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt32,
-      int32_t,
-      PerfettoMetatrace>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_CounterValue kCounterValue() { return {}; }
-  void set_counter_value(int32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_CounterValue::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_ThreadId =
-    ::protozero::proto_utils::FieldMetadata<
-      5,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      PerfettoMetatrace>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_ThreadId kThreadId() { return {}; }
-  void set_thread_id(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_ThreadId::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_HasOverruns =
-    ::protozero::proto_utils::FieldMetadata<
-      6,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kBool,
-      bool,
-      PerfettoMetatrace>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_HasOverruns kHasOverruns() { return {}; }
-  void set_has_overruns(bool value) {
-    static constexpr uint32_t field_id = FieldMetadata_HasOverruns::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kBool>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Args =
-    ::protozero::proto_utils::FieldMetadata<
-      7,
-      ::protozero::proto_utils::RepetitionType::kRepeatedNotPacked,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      PerfettoMetatrace_Arg,
-      PerfettoMetatrace>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Args kArgs() { return {}; }
-  template <typename T = PerfettoMetatrace_Arg> T* add_args() {
-    return BeginNestedMessage<T>(7);
-  }
-
-};
-
-class PerfettoMetatrace_Arg_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/2, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  PerfettoMetatrace_Arg_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit PerfettoMetatrace_Arg_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit PerfettoMetatrace_Arg_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_key() const { return at<1>().valid(); }
-  ::protozero::ConstChars key() const { return at<1>().as_string(); }
-  bool has_value() const { return at<2>().valid(); }
-  ::protozero::ConstChars value() const { return at<2>().as_string(); }
-};
-
-class PerfettoMetatrace_Arg : public ::protozero::Message {
- public:
-  using Decoder = PerfettoMetatrace_Arg_Decoder;
-  enum : int32_t {
-    kKeyFieldNumber = 1,
-    kValueFieldNumber = 2,
-  };
-
-  using FieldMetadata_Key =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kString,
-      std::string,
-      PerfettoMetatrace_Arg>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Key kKey() { return {}; }
-  void set_key(const char* data, size_t size) {
-    AppendBytes(FieldMetadata_Key::kFieldId, data, size);
-  }
-  void set_key(std::string value) {
-    static constexpr uint32_t field_id = FieldMetadata_Key::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kString>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Value =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kString,
-      std::string,
-      PerfettoMetatrace_Arg>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Value kValue() { return {}; }
-  void set_value(const char* data, size_t size) {
-    AppendBytes(FieldMetadata_Value::kFieldId, data, size);
-  }
-  void set_value(std::string value) {
-    static constexpr uint32_t field_id = FieldMetadata_Value::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kString>
-        ::Append(*this, field_id, value);
-  }
-};
-
-} // Namespace.
-} // Namespace.
-} // Namespace.
-#endif  // Include guard.
-/*
- * Copyright (C) 2019 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-// gen_amalgamated expanded: #include "src/tracing/core/metatrace_writer.h"
-
-// gen_amalgamated expanded: #include "perfetto/base/logging.h"
-// gen_amalgamated expanded: #include "perfetto/base/task_runner.h"
-// gen_amalgamated expanded: #include "perfetto/ext/tracing/core/trace_writer.h"
-// gen_amalgamated expanded: #include "perfetto/tracing/core/data_source_descriptor.h"
-
-// gen_amalgamated expanded: #include "protos/perfetto/trace/perfetto/perfetto_metatrace.pbzero.h"
-// gen_amalgamated expanded: #include "protos/perfetto/trace/trace_packet.pbzero.h"
-
-namespace perfetto {
-
-// static
-constexpr char MetatraceWriter::kDataSourceName[];
-
-MetatraceWriter::MetatraceWriter() : weak_ptr_factory_(this) {}
-
-MetatraceWriter::~MetatraceWriter() {
-  Disable();
-}
-
-void MetatraceWriter::Enable(base::TaskRunner* task_runner,
-                             std::unique_ptr<TraceWriter> trace_writer,
-                             uint32_t tags) {
-  PERFETTO_DCHECK_THREAD(thread_checker_);
-  if (started_) {
-    PERFETTO_DFATAL_OR_ELOG("Metatrace already started from this instance");
-    return;
-  }
-  task_runner_ = task_runner;
-  trace_writer_ = std::move(trace_writer);
-  auto weak_ptr = weak_ptr_factory_.GetWeakPtr();
-  bool enabled = metatrace::Enable(
-      [weak_ptr] {
-        if (weak_ptr)
-          weak_ptr->WriteAllAvailableEvents();
-      },
-      task_runner, tags);
-  if (!enabled)
-    return;
-  started_ = true;
-}
-
-void MetatraceWriter::Disable() {
-  PERFETTO_DCHECK_THREAD(thread_checker_);
-  if (!started_)
-    return;
-  metatrace::Disable();
-  started_ = false;
-  trace_writer_.reset();
-}
-
-void MetatraceWriter::WriteAllAvailableEvents() {
-  PERFETTO_DCHECK_THREAD(thread_checker_);
-  if (!started_)
-    return;
-  for (auto it = metatrace::RingBuffer::GetReadIterator(); it; ++it) {
-    auto type_and_id = it->type_and_id.load(std::memory_order_acquire);
-    if (type_and_id == 0)
-      break;  // Stop at the first incomplete event.
-
-    auto packet = trace_writer_->NewTracePacket();
-    packet->set_timestamp(it->timestamp_ns());
-    auto* evt = packet->set_perfetto_metatrace();
-    uint16_t type = type_and_id & metatrace::Record::kTypeMask;
-    uint16_t id = type_and_id & ~metatrace::Record::kTypeMask;
-    if (type == metatrace::Record::kTypeCounter) {
-      evt->set_counter_id(id);
-      evt->set_counter_value(it->counter_value);
-    } else {
-      evt->set_event_id(id);
-      evt->set_event_duration_ns(it->duration_ns);
-    }
-
-    evt->set_thread_id(static_cast<uint32_t>(it->thread_id));
-
-    if (metatrace::RingBuffer::has_overruns())
-      evt->set_has_overruns(true);
-  }
-  // The |it| destructor will automatically update the read index position in
-  // the meta-trace ring buffer.
-}
-
-void MetatraceWriter::WriteAllAndFlushTraceWriter(
-    std::function<void()> callback) {
-  PERFETTO_DCHECK_THREAD(thread_checker_);
-  if (!started_)
-    return;
-  WriteAllAvailableEvents();
-  trace_writer_->Flush(std::move(callback));
-}
-
-}  // namespace perfetto
-// gen_amalgamated begin source: src/tracing/core/packet_stream_validator.cc
-// gen_amalgamated begin header: src/tracing/core/packet_stream_validator.h
-/*
- * Copyright (C) 2018 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef SRC_TRACING_CORE_PACKET_STREAM_VALIDATOR_H_
-#define SRC_TRACING_CORE_PACKET_STREAM_VALIDATOR_H_
-
-// gen_amalgamated expanded: #include "perfetto/ext/tracing/core/slice.h"
-
-namespace perfetto {
-
-// Checks that the stream of trace packets sent by the producer is well formed.
-// This includes:
-//
-// - Checking that the packets are not truncated.
-// - There are no dangling bytes left over in the packets.
-// - Any trusted fields (e.g., uid) are not set.
-//
-// Note that we only validate top-level fields in the trace proto; sub-messages
-// are simply skipped.
-class PacketStreamValidator {
- public:
-  PacketStreamValidator() = delete;
-
-  static bool Validate(const Slices&);
-};
-
-}  // namespace perfetto
-
-#endif  // SRC_TRACING_CORE_PACKET_STREAM_VALIDATOR_H_
-/*
- * Copyright (C) 2018 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-// gen_amalgamated expanded: #include "src/tracing/core/packet_stream_validator.h"
-
-#include <inttypes.h>
-#include <stddef.h>
-
-// gen_amalgamated expanded: #include "perfetto/base/logging.h"
-// gen_amalgamated expanded: #include "perfetto/ext/base/utils.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/proto_utils.h"
-
-// gen_amalgamated expanded: #include "protos/perfetto/trace/trace_packet.pbzero.h"
-
-namespace perfetto {
-
-namespace {
-
-using protozero::proto_utils::ProtoWireType;
-
-const uint32_t kReservedFieldIds[] = {
-    protos::pbzero::TracePacket::kTrustedUidFieldNumber,
-    protos::pbzero::TracePacket::kTrustedPacketSequenceIdFieldNumber,
-    protos::pbzero::TracePacket::kTraceConfigFieldNumber,
-    protos::pbzero::TracePacket::kTraceStatsFieldNumber,
-    protos::pbzero::TracePacket::kCompressedPacketsFieldNumber,
-    protos::pbzero::TracePacket::kSynchronizationMarkerFieldNumber,
-};
-
-// This translation unit is quite subtle and perf-sensitive. Remember to check
-// BM_PacketStreamValidator in perfetto_benchmarks when making changes.
-
-// Checks that a packet, spread over several slices, is well-formed and doesn't
-// contain reserved top-level fields.
-// The checking logic is based on a state-machine that skips the fields' payload
-// and operates as follows:
-//              +-------------------------------+ <-------------------------+
-// +----------> | Read field preamble (varint)  | <----------------------+  |
-// |            +-------------------------------+                        |  |
-// |              |              |            |                          |  |
-// |       <Varint>        <Fixed 32/64>     <Length-delimited field>    |  |
-// |          V                  |                      V                |  |
-// |  +------------------+       |               +--------------+        |  |
-// |  | Read field value |       |               | Read length  |        |  |
-// |  | (another varint) |       |               |   (varint)   |        |  |
-// |  +------------------+       |               +--------------+        |  |
-// |           |                 V                      V                |  |
-// +-----------+        +----------------+     +-----------------+       |  |
-//                      | Skip 4/8 Bytes |     | Skip $len Bytes |-------+  |
-//                      +----------------+     +-----------------+          |
-//                               |                                          |
-//                               +------------------------------------------+
-class ProtoFieldParserFSM {
- public:
-  // This method effectively continuously parses varints (either for the field
-  // preamble or the payload or the submessage length) and tells the caller
-  // (the Validate() method) how many bytes to skip until the next field.
-  size_t Push(uint8_t octet) {
-    varint_ |= static_cast<uint64_t>(octet & 0x7F) << varint_shift_;
-    if (octet & 0x80) {
-      varint_shift_ += 7;
-      if (varint_shift_ >= 64) {
-        // Do not invoke UB on next call.
-        varint_shift_ = 0;
-        state_ = kInvalidVarInt;
-      }
-      return 0;
-    }
-    uint64_t varint = varint_;
-    varint_ = 0;
-    varint_shift_ = 0;
-
-    switch (state_) {
-      case kFieldPreamble: {
-        uint64_t field_type = varint & 7;  // 7 = 0..0111
-        auto field_id = static_cast<uint32_t>(varint >> 3);
-        // Check if the field id is reserved, go into an error state if it is.
-        for (size_t i = 0; i < base::ArraySize(kReservedFieldIds); ++i) {
-          if (field_id == kReservedFieldIds[i]) {
-            state_ = kWroteReservedField;
-            return 0;
-          }
-        }
-        // The field type is legit, now check it's well formed and within
-        // boundaries.
-        if (field_type == static_cast<uint64_t>(ProtoWireType::kVarInt)) {
-          state_ = kVarIntValue;
-        } else if (field_type ==
-                   static_cast<uint64_t>(ProtoWireType::kFixed32)) {
-          return 4;
-        } else if (field_type ==
-                   static_cast<uint64_t>(ProtoWireType::kFixed64)) {
-          return 8;
-        } else if (field_type ==
-                   static_cast<uint64_t>(ProtoWireType::kLengthDelimited)) {
-          state_ = kLenDelimitedLen;
-        } else {
-          state_ = kUnknownFieldType;
-        }
-        return 0;
-      }
-
-      case kVarIntValue: {
-        // Consume the int field payload and go back to the next field.
-        state_ = kFieldPreamble;
-        return 0;
-      }
-
-      case kLenDelimitedLen: {
-        if (varint > protozero::proto_utils::kMaxMessageLength) {
-          state_ = kMessageTooBig;
-          return 0;
-        }
-        state_ = kFieldPreamble;
-        return static_cast<size_t>(varint);
-      }
-
-      case kWroteReservedField:
-      case kUnknownFieldType:
-      case kMessageTooBig:
-      case kInvalidVarInt:
-        // Persistent error states.
-        return 0;
-
-    }          // switch(state_)
-    return 0;  // To keep GCC happy.
-  }
-
-  // Queried at the end of the all payload. A message is well-formed only
-  // if the FSM is back to the state where it should parse the next field and
-  // hasn't started parsing any preamble.
-  bool valid() const { return state_ == kFieldPreamble && varint_shift_ == 0; }
-  int state() const { return static_cast<int>(state_); }
-
- private:
-  enum State {
-    kFieldPreamble = 0,  // Parsing the varint for the field preamble.
-    kVarIntValue,        // Parsing the varint value for the field payload.
-    kLenDelimitedLen,    // Parsing the length of the length-delimited field.
-
-    // Error states:
-    kWroteReservedField,  // Tried to set a reserved field id.
-    kUnknownFieldType,    // Encountered an invalid field type.
-    kMessageTooBig,       // Size of the length delimited message was too big.
-    kInvalidVarInt,       // VarInt larger than 64 bits.
-  };
-
-  State state_ = kFieldPreamble;
-  uint64_t varint_ = 0;
-  uint32_t varint_shift_ = 0;
-};
-
-}  // namespace
-
-// static
-bool PacketStreamValidator::Validate(const Slices& slices) {
-  ProtoFieldParserFSM parser;
-  size_t skip_bytes = 0;
-  for (const Slice& slice : slices) {
-    for (size_t i = 0; i < slice.size;) {
-      const size_t skip_bytes_cur_slice = std::min(skip_bytes, slice.size - i);
-      if (skip_bytes_cur_slice > 0) {
-        i += skip_bytes_cur_slice;
-        skip_bytes -= skip_bytes_cur_slice;
-      } else {
-        uint8_t octet = *(reinterpret_cast<const uint8_t*>(slice.start) + i);
-        skip_bytes = parser.Push(octet);
-        i++;
-      }
-    }
-  }
-  if (skip_bytes == 0 && parser.valid())
-    return true;
-
-  PERFETTO_DLOG("Packet validation error (state %d, skip = %zu)",
-                parser.state(), skip_bytes);
-  return false;
-}
-
-}  // namespace perfetto
-// gen_amalgamated begin source: src/tracing/core/trace_buffer.cc
-// gen_amalgamated begin header: src/tracing/core/trace_buffer.h
-/*
- * Copyright (C) 2018 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef SRC_TRACING_CORE_TRACE_BUFFER_H_
-#define SRC_TRACING_CORE_TRACE_BUFFER_H_
-
-#include <stdint.h>
-#include <string.h>
-
-#include <array>
-#include <limits>
-#include <map>
-#include <tuple>
-
-// gen_amalgamated expanded: #include "perfetto/base/logging.h"
-// gen_amalgamated expanded: #include "perfetto/ext/base/paged_memory.h"
-// gen_amalgamated expanded: #include "perfetto/ext/base/thread_annotations.h"
-// gen_amalgamated expanded: #include "perfetto/ext/base/utils.h"
-// gen_amalgamated expanded: #include "perfetto/ext/tracing/core/basic_types.h"
-// gen_amalgamated expanded: #include "perfetto/ext/tracing/core/slice.h"
-// gen_amalgamated expanded: #include "perfetto/ext/tracing/core/trace_stats.h"
-
-namespace perfetto {
-
-class TracePacket;
-
-// The main buffer, owned by the tracing service, where all the trace data is
-// ultimately stored into. The service will own several instances of this class,
-// at least one per active consumer (as defined in the |buffers| section of
-// trace_config.proto) and will copy chunks from the producer's shared memory
-// buffers into here when a CommitData IPC is received.
-//
-// Writing into the buffer
-// -----------------------
-// Data is copied from the SMB(s) using CopyChunkUntrusted(). The buffer will
-// hence contain data coming from different producers and different writer
-// sequences, more specifically:
-// - The service receives data by several producer(s), identified by their ID.
-// - Each producer writes several sequences identified by the same WriterID.
-//   (they correspond to TraceWriter instances in the producer).
-// - Each Writer writes, in order, several chunks.
-// - Each chunk contains zero, one, or more TracePacket(s), or even just
-//   fragments of packets (when they span across several chunks).
-//
-// So at any point in time, the buffer will contain a variable number of logical
-// sequences identified by the {ProducerID, WriterID} tuple. Any given chunk
-// will only contain packets (or fragments) belonging to the same sequence.
-//
-// The buffer operates by default as a ring buffer.
-// It has two overwrite policies:
-//  1. kOverwrite (default): if the write pointer reaches the read pointer, old
-//     unread chunks will be overwritten by new chunks.
-//  2. kDiscard: if the write pointer reaches the read pointer, unread chunks
-//     are preserved and the new chunks are discarded. Any future write becomes
-//     a no-op, even if the reader manages to fully catch up. This is because
-//     once a chunk is discarded, the sequence of packets is broken and trying
-//     to recover would be too hard (also due to the fact that, at the same
-//     time, we allow out-of-order commits and chunk re-writes).
-//
-// Chunks are (over)written in the same order of the CopyChunkUntrusted() calls.
-// When overwriting old content, entire chunks are overwritten or clobbered.
-// The buffer never leaves a partial chunk around. Chunks' payload is copied
-// as-is, but their header is not and is repacked in order to keep the
-// ProducerID around.
-//
-// Chunks are stored in the buffer next to each other. Each chunk is prefixed by
-// an inline header (ChunkRecord), which contains most of the fields of the
-// SharedMemoryABI ChunkHeader + the ProducerID + the size of the payload.
-// It's a conventional binary object stream essentially, where each ChunkRecord
-// tells where it ends and hence where to find the next one, like this:
-//
-//          .-------------------------. 16 byte boundary
-//          | ChunkRecord:   16 bytes |
-//          | - chunk id:     4 bytes |
-//          | - producer id:  2 bytes |
-//          | - writer id:    2 bytes |
-//          | - #fragments:   2 bytes |
-//    +-----+ - record size:  2 bytes |
-//    |     | - flags+pad:    4 bytes |
-//    |     +-------------------------+
-//    |     |                         |
-//    |     :     Chunk payload       :
-//    |     |                         |
-//    |     +-------------------------+
-//    |     |    Optional padding     |
-//    +---> +-------------------------+ 16 byte boundary
-//          |      ChunkRecord        |
-//          :                         :
-// Chunks stored in the buffer are always rounded up to 16 bytes (that is
-// sizeof(ChunkRecord)), in order to avoid further inner fragmentation.
-// Special "padding" chunks can be put in the buffer, e.g. in the case when we
-// try to write a chunk of size N while the write pointer is at the end of the
-// buffer, but the write pointer is < N bytes from the end (and hence needs to
-// wrap over).
-// Because of this, the buffer is self-describing: the contents of the buffer
-// can be reconstructed by just looking at the buffer content (this will be
-// quite useful in future to recover the buffer from crash reports).
-//
-// However, in order to keep some operations (patching and reading) fast, a
-// lookaside index is maintained (in |index_|), keeping each chunk in the buffer
-// indexed by their {ProducerID, WriterID, ChunkID} tuple.
-//
-// Patching data out-of-band
-// -------------------------
-// This buffer also supports patching chunks' payload out-of-band, after they
-// have been stored. This is to allow producers to backfill the "size" fields
-// of the protos that spawn across several chunks, when the previous chunks are
-// returned to the service. The MaybePatchChunkContents() deals with the fact
-// that a chunk might have been lost (because of wrapping) by the time the OOB
-// IPC comes.
-//
-// Reading from the buffer
-// -----------------------
-// This class supports one reader only (the consumer). Reads are NOT idempotent
-// as they move the read cursors around. Reading back the buffer is the most
-// conceptually complex part. The ReadNextTracePacket() method operates with
-// whole packet granularity. Packets are returned only when all their fragments
-// are available.
-// This class takes care of:
-// - Gluing packets within the same sequence, even if they are not stored
-//   adjacently in the buffer.
-// - Re-ordering chunks within a sequence (using the ChunkID, which wraps).
-// - Detecting holes in packet fragments (because of loss of chunks).
-// Reads guarantee that packets for the same sequence are read in FIFO order
-// (according to their ChunkID), but don't give any guarantee about the read
-// order of packets from different sequences, see comments in
-// ReadNextTracePacket() below.
-class TraceBuffer {
- public:
-  static const size_t InlineChunkHeaderSize;  // For test/fake_packet.{cc,h}.
-
-  // See comment in the header above.
-  enum OverwritePolicy { kOverwrite, kDiscard };
-
-  // Argument for out-of-band patches applied through TryPatchChunkContents().
-  struct Patch {
-    // From SharedMemoryABI::kPacketHeaderSize.
-    static constexpr size_t kSize = 4;
-
-    size_t offset_untrusted;
-    std::array<uint8_t, kSize> data;
-  };
-
-  // Identifiers that are constant for a packet sequence.
-  struct PacketSequenceProperties {
-    ProducerID producer_id_trusted;
-    uid_t producer_uid_trusted;
-    WriterID writer_id;
-  };
-
-  // Can return nullptr if the memory allocation fails.
-  static std::unique_ptr<TraceBuffer> Create(size_t size_in_bytes,
-                                             OverwritePolicy = kOverwrite);
-
-  ~TraceBuffer();
-
-  // Copies a Chunk from a producer Shared Memory Buffer into the trace buffer.
-  // |src| points to the first packet in the SharedMemoryABI's chunk shared with
-  // an untrusted producer. "untrusted" here means: the producer might be
-  // malicious and might change |src| concurrently while we read it (internally
-  // this method memcpy()-s first the chunk before processing it). None of the
-  // arguments should be trusted, unless otherwise stated. We can trust that
-  // |src| points to a valid memory area, but not its contents.
-  //
-  // This method may be called multiple times for the same chunk. In this case,
-  // the original chunk's payload will be overridden and its number of fragments
-  // and flags adjusted to match |num_fragments| and |chunk_flags|. The service
-  // may use this to insert partial chunks (|chunk_complete = false|) before the
-  // producer has committed them.
-  //
-  // If |chunk_complete| is |false|, the TraceBuffer will only consider the
-  // first |num_fragments - 1| packets to be complete, since the producer may
-  // not have finished writing the latest packet. Reading from a sequence will
-  // also not progress past any incomplete chunks until they were rewritten with
-  // |chunk_complete = true|, e.g. after a producer's commit.
-  //
-  // TODO(eseckler): Pass in a PacketStreamProperties instead of individual IDs.
-  void CopyChunkUntrusted(ProducerID producer_id_trusted,
-                          uid_t producer_uid_trusted,
-                          WriterID writer_id,
-                          ChunkID chunk_id,
-                          uint16_t num_fragments,
-                          uint8_t chunk_flags,
-                          bool chunk_complete,
-                          const uint8_t* src,
-                          size_t size);
-  // Applies a batch of |patches| to the given chunk, if the given chunk is
-  // still in the buffer. Does nothing if the given ChunkID is gone.
-  // Returns true if the chunk has been found and patched, false otherwise.
-  // |other_patches_pending| is used to determine whether this is the only
-  // batch of patches for the chunk or there is more.
-  // If |other_patches_pending| == false, the chunk is marked as ready to be
-  // consumed. If true, the state of the chunk is not altered.
-  //
-  // Note: If the producer is batching commits (see shared_memory_arbiter.h), it
-  // will also attempt to do patching locally. Namely, if nested messages are
-  // completed while the chunk on which they started is being batched (i.e.
-  // before it has been committed to the service), the producer will apply the
-  // respective patches to the batched chunk. These patches will not be sent to
-  // the service - i.e. only the patches that the producer did not manage to
-  // apply before committing the chunk will be applied here.
-  bool TryPatchChunkContents(ProducerID,
-                             WriterID,
-                             ChunkID,
-                             const Patch* patches,
-                             size_t patches_size,
-                             bool other_patches_pending);
-
-  // To read the contents of the buffer the caller needs to:
-  //   BeginRead()
-  //   while (ReadNextTracePacket(packet_fragments)) { ... }
-  // No other calls to any other method should be interleaved between
-  // BeginRead() and ReadNextTracePacket().
-  // Reads in the TraceBuffer are NOT idempotent.
-  void BeginRead();
-
-  // Returns the next packet in the buffer, if any, and the producer_id,
-  // producer_uid, and writer_id of the producer/writer that wrote it (as passed
-  // in the CopyChunkUntrusted() call). Returns false if no packets can be read
-  // at this point. If a packet was read successfully,
-  // |previous_packet_on_sequence_dropped| is set to |true| if the previous
-  // packet on the sequence was dropped from the buffer before it could be read
-  // (e.g. because its chunk was overridden due to the ring buffer wrapping or
-  // due to an ABI violation), and to |false| otherwise.
-  //
-  // This function returns only complete packets. Specifically:
-  // When there is at least one complete packet in the buffer, this function
-  // returns true and populates the TracePacket argument with the boundaries of
-  // each fragment for one packet.
-  // TracePacket will have at least one slice when this function returns true.
-  // When there are no whole packets eligible to read (e.g. we are still missing
-  // fragments) this function returns false.
-  // This function guarantees also that packets for a given
-  // {ProducerID, WriterID} are read in FIFO order.
-  // This function does not guarantee any ordering w.r.t. packets belonging to
-  // different WriterID(s). For instance, given the following packets copied
-  // into the buffer:
-  //   {ProducerID: 1, WriterID: 1}: P1 P2 P3
-  //   {ProducerID: 1, WriterID: 2}: P4 P5 P6
-  //   {ProducerID: 2, WriterID: 1}: P7 P8 P9
-  // The following read sequence is possible:
-  //   P1, P4, P7, P2, P3, P5, P8, P9, P6
-  // But the following is guaranteed to NOT happen:
-  //   P1, P5, P7, P4 (P4 cannot come after P5)
-  bool ReadNextTracePacket(TracePacket*,
-                           PacketSequenceProperties* sequence_properties,
-                           bool* previous_packet_on_sequence_dropped);
-
-  const TraceStats::BufferStats& stats() const { return stats_; }
-  size_t size() const { return size_; }
-
- private:
-  friend class TraceBufferTest;
-
-  // ChunkRecord is a Chunk header stored inline in the |data_| buffer, before
-  // the chunk payload (the packets' data). The |data_| buffer looks like this:
-  // +---------------+------------------++---------------+-----------------+
-  // | ChunkRecord 1 | Chunk payload 1  || ChunkRecord 2 | Chunk payload 2 | ...
-  // +---------------+------------------++---------------+-----------------+
-  // Most of the ChunkRecord fields are copied from SharedMemoryABI::ChunkHeader
-  // (the chunk header used in the shared memory buffers).
-  // A ChunkRecord can be a special "padding" record. In this case its payload
-  // should be ignored and the record should be just skipped.
-  //
-  // Full page move optimization:
-  // This struct has to be exactly (sizeof(PageHeader) + sizeof(ChunkHeader))
-  // (from shared_memory_abi.h) to allow full page move optimizations
-  // (TODO(primiano): not implemented yet). In the special case of moving a full
-  // 4k page that contains only one chunk, in fact, we can just ask the kernel
-  // to move the full SHM page (see SPLICE_F_{GIFT,MOVE}) and overlay the
-  // ChunkRecord on top of the moved SMB's header (page + chunk header).
-  // This special requirement is covered by static_assert(s) in the .cc file.
-  struct ChunkRecord {
-    explicit ChunkRecord(size_t sz) : flags{0}, is_padding{0} {
-      PERFETTO_DCHECK(sz >= sizeof(ChunkRecord) &&
-                      sz % sizeof(ChunkRecord) == 0 && sz <= kMaxSize);
-      size = static_cast<decltype(size)>(sz);
-    }
-
-    bool is_valid() const { return size != 0; }
-
-    // Keep this structure packed and exactly 16 bytes (128 bits) big.
-
-    // [32 bits] Monotonic counter within the same writer_id.
-    ChunkID chunk_id = 0;
-
-    // [16 bits] ID of the Producer from which the Chunk was copied from.
-    ProducerID producer_id = 0;
-
-    // [16 bits] Unique per Producer (but not within the service).
-    // If writer_id == kWriterIdPadding the record should just be skipped.
-    WriterID writer_id = 0;
-
-    // Number of fragments contained in the chunk.
-    uint16_t num_fragments = 0;
-
-    // Size in bytes, including sizeof(ChunkRecord) itself.
-    uint16_t size;
-
-    uint8_t flags : 6;  // See SharedMemoryABI::ChunkHeader::flags.
-    uint8_t is_padding : 1;
-    uint8_t unused_flag : 1;
-
-    // Not strictly needed, can be reused for more fields in the future. But
-    // right now helps to spot chunks in hex dumps.
-    char unused[3] = {'C', 'H', 'U'};
-
-    static constexpr size_t kMaxSize =
-        std::numeric_limits<decltype(size)>::max();
-  };
-
-  // Lookaside index entry. This serves two purposes:
-  // 1) Allow a fast lookup of ChunkRecord by their ID (the tuple
-  //   {ProducerID, WriterID, ChunkID}). This is used when applying out-of-band
-  //   patches to the contents of the chunks after they have been copied into
-  //   the TraceBuffer.
-  // 2) keep the chunks ordered by their ID. This is used when reading back.
-  // 3) Keep metadata about the status of the chunk, e.g. whether the contents
-  //    have been read already and should be skipped in a future read pass.
-  // This struct should not have any field that is essential for reconstructing
-  // the contents of the buffer from a crash dump.
-  struct ChunkMeta {
-    // Key used for sorting in the map.
-    struct Key {
-      Key(ProducerID p, WriterID w, ChunkID c)
-          : producer_id{p}, writer_id{w}, chunk_id{c} {}
-
-      explicit Key(const ChunkRecord& cr)
-          : Key(cr.producer_id, cr.writer_id, cr.chunk_id) {}
-
-      // Note that this sorting doesn't keep into account the fact that ChunkID
-      // will wrap over at some point. The extra logic in SequenceIterator deals
-      // with that.
-      bool operator<(const Key& other) const {
-        return std::tie(producer_id, writer_id, chunk_id) <
-               std::tie(other.producer_id, other.writer_id, other.chunk_id);
-      }
-
-      bool operator==(const Key& other) const {
-        return std::tie(producer_id, writer_id, chunk_id) ==
-               std::tie(other.producer_id, other.writer_id, other.chunk_id);
-      }
-
-      bool operator!=(const Key& other) const { return !(*this == other); }
-
-      // These fields should match at all times the corresponding fields in
-      // the |chunk_record|. They are copied here purely for efficiency to avoid
-      // dereferencing the buffer all the time.
-      ProducerID producer_id;
-      WriterID writer_id;
-      ChunkID chunk_id;
-    };
-
-    enum IndexFlags : uint8_t {
-      // If set, the chunk state was kChunkComplete at the time it was copied.
-      // If unset, the chunk was still kChunkBeingWritten while copied. When
-      // reading from the chunk's sequence, the sequence will not advance past
-      // this chunk until this flag is set.
-      kComplete = 1 << 0,
-
-      // If set, we skipped the last packet that we read from this chunk e.g.
-      // because we it was a continuation from a previous chunk that was dropped
-      // or due to an ABI violation.
-      kLastReadPacketSkipped = 1 << 1
-    };
-
-    ChunkMeta(ChunkRecord* r, uint16_t p, bool complete, uint8_t f, uid_t u)
-        : chunk_record{r}, trusted_uid{u}, flags{f}, num_fragments{p} {
-      if (complete)
-        index_flags = kComplete;
-    }
-
-    bool is_complete() const { return index_flags & kComplete; }
-
-    void set_complete(bool complete) {
-      if (complete) {
-        index_flags |= kComplete;
-      } else {
-        index_flags &= ~kComplete;
-      }
-    }
-
-    bool last_read_packet_skipped() const {
-      return index_flags & kLastReadPacketSkipped;
-    }
-
-    void set_last_read_packet_skipped(bool skipped) {
-      if (skipped) {
-        index_flags |= kLastReadPacketSkipped;
-      } else {
-        index_flags &= ~kLastReadPacketSkipped;
-      }
-    }
-
-    ChunkRecord* const chunk_record;  // Addr of ChunkRecord within |data_|.
-    const uid_t trusted_uid;          // uid of the producer.
-
-    // Flags set by TraceBuffer to track the state of the chunk in the index.
-    uint8_t index_flags = 0;
-
-    // Correspond to |chunk_record->flags| and |chunk_record->num_fragments|.
-    // Copied here for performance reasons (avoids having to dereference
-    // |chunk_record| while iterating over ChunkMeta) and to aid debugging in
-    // case the buffer gets corrupted.
-    uint8_t flags = 0;           // See SharedMemoryABI::ChunkHeader::flags.
-    uint16_t num_fragments = 0;  // Total number of packet fragments.
-
-    uint16_t num_fragments_read = 0;  // Number of fragments already read.
-
-    // The start offset of the next fragment (the |num_fragments_read|-th) to be
-    // read. This is the offset in bytes from the beginning of the ChunkRecord's
-    // payload (the 1st fragment starts at |chunk_record| +
-    // sizeof(ChunkRecord)).
-    uint16_t cur_fragment_offset = 0;
-  };
-
-  using ChunkMap = std::map<ChunkMeta::Key, ChunkMeta>;
-
-  // Allows to iterate over a sub-sequence of |index_| for all keys belonging to
-  // the same {ProducerID,WriterID}. Furthermore takes into account the wrapping
-  // of ChunkID. Instances are valid only as long as the |index_| is not altered
-  // (can be used safely only between adjacent ReadNextTracePacket() calls).
-  // The order of the iteration will proceed in the following order:
-  // |wrapping_id| + 1 -> |seq_end|, |seq_begin| -> |wrapping_id|.
-  // Practical example:
-  // - Assume that kMaxChunkID == 7
-  // - Assume that we have all 8 chunks in the range (0..7).
-  // - Hence, |seq_begin| == c0, |seq_end| == c7
-  // - Assume |wrapping_id| = 4 (c4 is the last chunk copied over
-  //   through a CopyChunkUntrusted()).
-  // The resulting iteration order will be: c5, c6, c7, c0, c1, c2, c3, c4.
-  struct SequenceIterator {
-    // Points to the 1st key (the one with the numerically min ChunkID).
-    ChunkMap::iterator seq_begin;
-
-    // Points one past the last key (the one with the numerically max ChunkID).
-    ChunkMap::iterator seq_end;
-
-    // Current iterator, always >= seq_begin && <= seq_end.
-    ChunkMap::iterator cur;
-
-    // The latest ChunkID written. Determines the start/end of the sequence.
-    ChunkID wrapping_id;
-
-    bool is_valid() const { return cur != seq_end; }
-
-    ProducerID producer_id() const {
-      PERFETTO_DCHECK(is_valid());
-      return cur->first.producer_id;
-    }
-
-    WriterID writer_id() const {
-      PERFETTO_DCHECK(is_valid());
-      return cur->first.writer_id;
-    }
-
-    ChunkID chunk_id() const {
-      PERFETTO_DCHECK(is_valid());
-      return cur->first.chunk_id;
-    }
-
-    ChunkMeta& operator*() {
-      PERFETTO_DCHECK(is_valid());
-      return cur->second;
-    }
-
-    // Moves |cur| to the next chunk in the index.
-    // is_valid() will become false after calling this, if this was the last
-    // entry of the sequence.
-    void MoveNext();
-
-    void MoveToEnd() { cur = seq_end; }
-  };
-
-  enum class ReadAheadResult {
-    kSucceededReturnSlices,
-    kFailedMoveToNextSequence,
-    kFailedStayOnSameSequence,
-  };
-
-  enum class ReadPacketResult {
-    kSucceeded,
-    kFailedInvalidPacket,
-    kFailedEmptyPacket,
-  };
-
-  explicit TraceBuffer(OverwritePolicy);
-  TraceBuffer(const TraceBuffer&) = delete;
-  TraceBuffer& operator=(const TraceBuffer&) = delete;
-
-  bool Initialize(size_t size);
-
-  // Returns an object that allows to iterate over chunks in the |index_| that
-  // have the same {ProducerID, WriterID} of
-  // |seq_begin.first.{producer,writer}_id|. |seq_begin| must be an iterator to
-  // the first entry in the |index_| that has a different {ProducerID, WriterID}
-  // from the previous one. It is valid for |seq_begin| to be == index_.end()
-  // (i.e. if the index is empty). The iteration takes care of ChunkID wrapping,
-  // by using |last_chunk_id_|.
-  SequenceIterator GetReadIterForSequence(ChunkMap::iterator seq_begin);
-
-  // Used as a last resort when a buffer corruption is detected.
-  void ClearContentsAndResetRWCursors();
-
-  // Adds a padding record of the given size (must be a multiple of
-  // sizeof(ChunkRecord)).
-  void AddPaddingRecord(size_t);
-
-  // Look for contiguous fragment of the same packet starting from |read_iter_|.
-  // If a contiguous packet is found, all the fragments are pushed into
-  // TracePacket and the function returns kSucceededReturnSlices. If not, the
-  // function returns either kFailedMoveToNextSequence or
-  // kFailedStayOnSameSequence, telling the caller to continue looking for
-  // packets.
-  ReadAheadResult ReadAhead(TracePacket*);
-
-  // Deletes (by marking the record invalid and removing form the index) all
-  // chunks from |wptr_| to |wptr_| + |bytes_to_clear|.
-  // Returns:
-  //   * The size of the gap left between the next valid Chunk and the end of
-  //     the deletion range.
-  //   * 0 if no next valid chunk exists (if the buffer is still zeroed).
-  //   * -1 if the buffer |overwrite_policy_| == kDiscard and the deletion would
-  //     cause unread chunks to be overwritten. In this case the buffer is left
-  //     untouched.
-  // Graphically, assume the initial situation is the following (|wptr_| = 10).
-  // |0        |10 (wptr_)       |30       |40                 |60
-  // +---------+-----------------+---------+-------------------+---------+
-  // | Chunk 1 | Chunk 2         | Chunk 3 | Chunk 4           | Chunk 5 |
-  // +---------+-----------------+---------+-------------------+---------+
-  //           |_________Deletion range_______|~~return value~~|
-  //
-  // A call to DeleteNextChunksFor(32) will remove chunks 2,3,4 and return 18
-  // (60 - 42), the distance between chunk 5 and the end of the deletion range.
-  ssize_t DeleteNextChunksFor(size_t bytes_to_clear);
-
-  // Decodes the boundaries of the next packet (or a fragment) pointed by
-  // ChunkMeta and pushes that into |TracePacket|. It also increments the
-  // |num_fragments_read| counter.
-  // TracePacket can be nullptr, in which case the read state is still advanced.
-  // When TracePacket is not nullptr, ProducerID must also be not null and will
-  // be updated with the ProducerID that originally wrote the chunk.
-  ReadPacketResult ReadNextPacketInChunk(ChunkMeta*, TracePacket*);
-
-  void DcheckIsAlignedAndWithinBounds(const uint8_t* ptr) const {
-    PERFETTO_DCHECK(ptr >= begin() && ptr <= end() - sizeof(ChunkRecord));
-    PERFETTO_DCHECK(
-        (reinterpret_cast<uintptr_t>(ptr) & (alignof(ChunkRecord) - 1)) == 0);
-  }
-
-  ChunkRecord* GetChunkRecordAt(uint8_t* ptr) {
-    DcheckIsAlignedAndWithinBounds(ptr);
-    // We may be accessing a new (empty) record.
-    data_.EnsureCommitted(
-        static_cast<size_t>(ptr + sizeof(ChunkRecord) - begin()));
-    return reinterpret_cast<ChunkRecord*>(ptr);
-  }
-
-  void DiscardWrite();
-
-  // |src| can be nullptr (in which case |size| must be ==
-  // record.size - sizeof(ChunkRecord)), for the case of writing a padding
-  // record. |wptr_| is NOT advanced by this function, the caller must do that.
-  void WriteChunkRecord(uint8_t* wptr,
-                        const ChunkRecord& record,
-                        const uint8_t* src,
-                        size_t size) {
-    // Note: |record.size| will be slightly bigger than |size| because of the
-    // ChunkRecord header and rounding, to ensure that all ChunkRecord(s) are
-    // multiple of sizeof(ChunkRecord). The invariant is:
-    // record.size >= |size| + sizeof(ChunkRecord) (== if no rounding).
-    PERFETTO_DCHECK(size <= ChunkRecord::kMaxSize);
-    PERFETTO_DCHECK(record.size >= sizeof(record));
-    PERFETTO_DCHECK(record.size % sizeof(record) == 0);
-    PERFETTO_DCHECK(record.size >= size + sizeof(record));
-    PERFETTO_CHECK(record.size <= size_to_end());
-    DcheckIsAlignedAndWithinBounds(wptr);
-
-    // We may be writing to this area for the first time.
-    data_.EnsureCommitted(static_cast<size_t>(wptr + record.size - begin()));
-
-    // Deliberately not a *D*CHECK.
-    PERFETTO_CHECK(wptr + sizeof(record) + size <= end());
-    memcpy(wptr, &record, sizeof(record));
-    if (PERFETTO_LIKELY(src)) {
-      // If the producer modifies the data in the shared memory buffer while we
-      // are copying it to the central buffer, TSAN will (rightfully) flag that
-      // as a race. However the entire purpose of copying the data into the
-      // central buffer is that we can validate it without worrying that the
-      // producer changes it from under our feet, so this race is benign. The
-      // alternative would be to try computing which part of the buffer is safe
-      // to read (assuming a well-behaving client), but the risk of introducing
-      // a bug that way outweighs the benefit.
-      PERFETTO_ANNOTATE_BENIGN_RACE_SIZED(
-          src, size, "Benign race when copying chunk from shared memory.")
-      memcpy(wptr + sizeof(record), src, size);
-    } else {
-      PERFETTO_DCHECK(size == record.size - sizeof(record));
-    }
-    const size_t rounding_size = record.size - sizeof(record) - size;
-    memset(wptr + sizeof(record) + size, 0, rounding_size);
-  }
-
-  uint8_t* begin() const { return reinterpret_cast<uint8_t*>(data_.Get()); }
-  uint8_t* end() const { return begin() + size_; }
-  size_t size_to_end() const { return static_cast<size_t>(end() - wptr_); }
-
-  base::PagedMemory data_;
-  size_t size_ = 0;            // Size in bytes of |data_|.
-  size_t max_chunk_size_ = 0;  // Max size in bytes allowed for a chunk.
-  uint8_t* wptr_ = nullptr;    // Write pointer.
-
-  // An index that keeps track of the positions and metadata of each
-  // ChunkRecord.
-  ChunkMap index_;
-
-  // Read iterator used for ReadNext(). It is reset by calling BeginRead().
-  // It becomes invalid after any call to methods that alters the |index_|.
-  SequenceIterator read_iter_;
-
-  // See comments at the top of the file.
-  OverwritePolicy overwrite_policy_ = kOverwrite;
-
-  // Only used when |overwrite_policy_ == kDiscard|. This is set the first time
-  // a write fails because it would overwrite unread chunks.
-  bool discard_writes_ = false;
-
-  // Keeps track of the highest ChunkID written for a given sequence, taking
-  // into account a potential overflow of ChunkIDs. In the case of overflow,
-  // stores the highest ChunkID written since the overflow.
-  //
-  // TODO(primiano): should clean up keys from this map. Right now it grows
-  // without bounds (although realistically is not a problem unless we have too
-  // many producers/writers within the same trace session).
-  std::map<std::pair<ProducerID, WriterID>, ChunkID> last_chunk_id_written_;
-
-  // Statistics about buffer usage.
-  TraceStats::BufferStats stats_;
-
-#if PERFETTO_DCHECK_IS_ON()
-  bool changed_since_last_read_ = false;
-#endif
-
-  // When true disable some DCHECKs that have been put in place to detect
-  // bugs in the producers. This is for tests that feed malicious inputs and
-  // hence mimic a buggy producer.
-  bool suppress_client_dchecks_for_testing_ = false;
-};
-
-}  // namespace perfetto
-
-#endif  // SRC_TRACING_CORE_TRACE_BUFFER_H_
-/*
- * Copyright (C) 2018 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-// gen_amalgamated expanded: #include "src/tracing/core/trace_buffer.h"
-
-#include <limits>
-
-// gen_amalgamated expanded: #include "perfetto/base/logging.h"
-// gen_amalgamated expanded: #include "perfetto/ext/base/utils.h"
-// gen_amalgamated expanded: #include "perfetto/ext/tracing/core/shared_memory_abi.h"
-// gen_amalgamated expanded: #include "perfetto/ext/tracing/core/trace_packet.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/proto_utils.h"
-
-#define TRACE_BUFFER_VERBOSE_LOGGING() 0  // Set to 1 when debugging unittests.
-#if TRACE_BUFFER_VERBOSE_LOGGING()
-#define TRACE_BUFFER_DLOG PERFETTO_DLOG
-namespace {
-constexpr char kHexDigits[] = "0123456789abcdef";
-std::string HexDump(const uint8_t* src, size_t size) {
-  std::string buf;
-  buf.reserve(4096 * 4);
-  char line[64];
-  char* c = line;
-  for (size_t i = 0; i < size; i++) {
-    *c++ = kHexDigits[(src[i] >> 4) & 0x0f];
-    *c++ = kHexDigits[(src[i] >> 0) & 0x0f];
-    if (i % 16 == 15) {
-      buf.append("\n");
-      buf.append(line);
-      c = line;
-    }
-  }
-  return buf;
-}
-}  // namespace
-#else
-#define TRACE_BUFFER_DLOG(...) void()
-#endif
-
-namespace perfetto {
-
-namespace {
-constexpr uint8_t kFirstPacketContinuesFromPrevChunk =
-    SharedMemoryABI::ChunkHeader::kFirstPacketContinuesFromPrevChunk;
-constexpr uint8_t kLastPacketContinuesOnNextChunk =
-    SharedMemoryABI::ChunkHeader::kLastPacketContinuesOnNextChunk;
-constexpr uint8_t kChunkNeedsPatching =
-    SharedMemoryABI::ChunkHeader::kChunkNeedsPatching;
-}  // namespace.
-
-constexpr size_t TraceBuffer::ChunkRecord::kMaxSize;
-constexpr size_t TraceBuffer::InlineChunkHeaderSize = sizeof(ChunkRecord);
-
-// static
-std::unique_ptr<TraceBuffer> TraceBuffer::Create(size_t size_in_bytes,
-                                                 OverwritePolicy pol) {
-  std::unique_ptr<TraceBuffer> trace_buffer(new TraceBuffer(pol));
-  if (!trace_buffer->Initialize(size_in_bytes))
-    return nullptr;
-  return trace_buffer;
-}
-
-TraceBuffer::TraceBuffer(OverwritePolicy pol) : overwrite_policy_(pol) {
-  // See comments in ChunkRecord for the rationale of this.
-  static_assert(sizeof(ChunkRecord) == sizeof(SharedMemoryABI::PageHeader) +
-                                           sizeof(SharedMemoryABI::ChunkHeader),
-                "ChunkRecord out of sync with the layout of SharedMemoryABI");
-}
-
-TraceBuffer::~TraceBuffer() = default;
-
-bool TraceBuffer::Initialize(size_t size) {
-  static_assert(
-      SharedMemoryABI::kMinPageSize % sizeof(ChunkRecord) == 0,
-      "sizeof(ChunkRecord) must be an integer divider of a page size");
-  data_ = base::PagedMemory::Allocate(
-      size, base::PagedMemory::kMayFail | base::PagedMemory::kDontCommit);
-  if (!data_.IsValid()) {
-    PERFETTO_ELOG("Trace buffer allocation failed (size: %zu)", size);
-    return false;
-  }
-  size_ = size;
-  stats_.set_buffer_size(size);
-  max_chunk_size_ = std::min(size, ChunkRecord::kMaxSize);
-  wptr_ = begin();
-  index_.clear();
-  last_chunk_id_written_.clear();
-  read_iter_ = GetReadIterForSequence(index_.end());
-  return true;
-}
-
-// Note: |src| points to a shmem region that is shared with the producer. Assume
-// that the producer is malicious and will change the content of |src|
-// while we execute here. Don't do any processing on it other than memcpy().
-void TraceBuffer::CopyChunkUntrusted(ProducerID producer_id_trusted,
-                                     uid_t producer_uid_trusted,
-                                     WriterID writer_id,
-                                     ChunkID chunk_id,
-                                     uint16_t num_fragments,
-                                     uint8_t chunk_flags,
-                                     bool chunk_complete,
-                                     const uint8_t* src,
-                                     size_t size) {
-  // |record_size| = |size| + sizeof(ChunkRecord), rounded up to avoid to end
-  // up in a fragmented state where size_to_end() < sizeof(ChunkRecord).
-  const size_t record_size =
-      base::AlignUp<sizeof(ChunkRecord)>(size + sizeof(ChunkRecord));
-  if (PERFETTO_UNLIKELY(record_size > max_chunk_size_)) {
-    stats_.set_abi_violations(stats_.abi_violations() + 1);
-    PERFETTO_DCHECK(suppress_client_dchecks_for_testing_);
-    return;
-  }
-
-  TRACE_BUFFER_DLOG("CopyChunk @ %lu, size=%zu", wptr_ - begin(), record_size);
-
-#if PERFETTO_DCHECK_IS_ON()
-  changed_since_last_read_ = true;
-#endif
-
-  // If the chunk hasn't been completed, we should only consider the first
-  // |num_fragments - 1| packets complete. For simplicity, we simply disregard
-  // the last one when we copy the chunk.
-  if (PERFETTO_UNLIKELY(!chunk_complete)) {
-    if (num_fragments > 0) {
-      num_fragments--;
-      // These flags should only affect the last packet in the chunk. We clear
-      // them, so that TraceBuffer is able to look at the remaining packets in
-      // this chunk.
-      chunk_flags &= ~kLastPacketContinuesOnNextChunk;
-      chunk_flags &= ~kChunkNeedsPatching;
-    }
-  }
-
-  ChunkRecord record(record_size);
-  record.producer_id = producer_id_trusted;
-  record.chunk_id = chunk_id;
-  record.writer_id = writer_id;
-  record.num_fragments = num_fragments;
-  record.flags = chunk_flags;
-  ChunkMeta::Key key(record);
-
-  // Check whether we have already copied the same chunk previously. This may
-  // happen if the service scrapes chunks in a potentially incomplete state
-  // before receiving commit requests for them from the producer. Note that the
-  // service may scrape and thus override chunks in arbitrary order since the
-  // chunks aren't ordered in the SMB.
-  const auto it = index_.find(key);
-  if (PERFETTO_UNLIKELY(it != index_.end())) {
-    ChunkMeta* record_meta = &it->second;
-    ChunkRecord* prev = record_meta->chunk_record;
-
-    // Verify that the old chunk's metadata corresponds to the new one.
-    // Overridden chunks should never change size, since the page layout is
-    // fixed per writer. The number of fragments should also never decrease and
-    // flags should not be removed.
-    if (PERFETTO_UNLIKELY(ChunkMeta::Key(*prev) != key ||
-                          prev->size != record_size ||
-                          prev->num_fragments > num_fragments ||
-                          (prev->flags & chunk_flags) != prev->flags)) {
-      stats_.set_abi_violations(stats_.abi_violations() + 1);
-      PERFETTO_DCHECK(suppress_client_dchecks_for_testing_);
-      return;
-    }
-
-    // If this chunk was previously copied with the same number of fragments and
-    // the number didn't change, there's no need to copy it again. If the
-    // previous chunk was complete already, this should always be the case.
-    PERFETTO_DCHECK(suppress_client_dchecks_for_testing_ ||
-                    !record_meta->is_complete() ||
-                    (chunk_complete && prev->num_fragments == num_fragments));
-    if (prev->num_fragments == num_fragments) {
-      TRACE_BUFFER_DLOG("  skipping recommit of identical chunk");
-      return;
-    }
-
-    // If we've already started reading from chunk N+1 following this chunk N,
-    // don't override chunk N. Otherwise we may end up reading a packet from
-    // chunk N after having read from chunk N+1, thereby violating sequential
-    // read of packets. This shouldn't happen if the producer is well-behaved,
-    // because it shouldn't start chunk N+1 before completing chunk N.
-    ChunkMeta::Key subsequent_key = key;
-    static_assert(std::numeric_limits<ChunkID>::max() == kMaxChunkID,
-                  "ChunkID wraps");
-    subsequent_key.chunk_id++;
-    const auto subsequent_it = index_.find(subsequent_key);
-    if (subsequent_it != index_.end() &&
-        subsequent_it->second.num_fragments_read > 0) {
-      stats_.set_abi_violations(stats_.abi_violations() + 1);
-      PERFETTO_DCHECK(suppress_client_dchecks_for_testing_);
-      return;
-    }
-
-    // We should not have read past the last packet.
-    if (record_meta->num_fragments_read > prev->num_fragments) {
-      PERFETTO_ELOG(
-          "TraceBuffer read too many fragments from an incomplete chunk");
-      PERFETTO_DCHECK(suppress_client_dchecks_for_testing_);
-      return;
-    }
-
-    uint8_t* wptr = reinterpret_cast<uint8_t*>(prev);
-    TRACE_BUFFER_DLOG("  overriding chunk @ %lu, size=%zu", wptr - begin(),
-                      record_size);
-
-    // Update chunk meta data stored in the index, as it may have changed.
-    record_meta->num_fragments = num_fragments;
-    record_meta->flags = chunk_flags;
-    record_meta->set_complete(chunk_complete);
-
-    // Override the ChunkRecord contents at the original |wptr|.
-    TRACE_BUFFER_DLOG("  copying @ [%lu - %lu] %zu", wptr - begin(),
-                      uintptr_t(wptr - begin()) + record_size, record_size);
-    WriteChunkRecord(wptr, record, src, size);
-    TRACE_BUFFER_DLOG("Chunk raw: %s", HexDump(wptr, record_size).c_str());
-    stats_.set_chunks_rewritten(stats_.chunks_rewritten() + 1);
-    return;
-  }
-
-  if (PERFETTO_UNLIKELY(discard_writes_))
-    return DiscardWrite();
-
-  // If there isn't enough room from the given write position. Write a padding
-  // record to clear the end of the buffer and wrap back.
-  const size_t cached_size_to_end = size_to_end();
-  if (PERFETTO_UNLIKELY(record_size > cached_size_to_end)) {
-    ssize_t res = DeleteNextChunksFor(cached_size_to_end);
-    if (res == -1)
-      return DiscardWrite();
-    PERFETTO_DCHECK(static_cast<size_t>(res) <= cached_size_to_end);
-    AddPaddingRecord(cached_size_to_end);
-    wptr_ = begin();
-    stats_.set_write_wrap_count(stats_.write_wrap_count() + 1);
-    PERFETTO_DCHECK(size_to_end() >= record_size);
-  }
-
-  // At this point either |wptr_| points to an untouched part of the buffer
-  // (i.e. *wptr_ == 0) or we are about to overwrite one or more ChunkRecord(s).
-  // In the latter case we need to first figure out where the next valid
-  // ChunkRecord is (if it exists) and add padding between the new record.
-  // Example ((w) == write cursor):
-  //
-  // Initial state (wtpr_ == 0):
-  // |0 (w)    |10               |30                  |50
-  // +---------+-----------------+--------------------+--------------------+
-  // | Chunk 1 | Chunk 2         | Chunk 3            | Chunk 4            |
-  // +---------+-----------------+--------------------+--------------------+
-  //
-  // Let's assume we now want now write a 5th Chunk of size == 35. The final
-  // state should look like this:
-  // |0                                |35 (w)         |50
-  // +---------------------------------+---------------+--------------------+
-  // | Chunk 5                         | Padding Chunk | Chunk 4            |
-  // +---------------------------------+---------------+--------------------+
-
-  // Deletes all chunks from |wptr_| to |wptr_| + |record_size|.
-  ssize_t del_res = DeleteNextChunksFor(record_size);
-  if (del_res == -1)
-    return DiscardWrite();
-  size_t padding_size = static_cast<size_t>(del_res);
-
-  // Now first insert the new chunk. At the end, if necessary, add the padding.
-  stats_.set_chunks_written(stats_.chunks_written() + 1);
-  stats_.set_bytes_written(stats_.bytes_written() + record_size);
-  auto it_and_inserted = index_.emplace(
-      key, ChunkMeta(GetChunkRecordAt(wptr_), num_fragments, chunk_complete,
-                     chunk_flags, producer_uid_trusted));
-  PERFETTO_DCHECK(it_and_inserted.second);
-  TRACE_BUFFER_DLOG("  copying @ [%lu - %lu] %zu", wptr_ - begin(),
-                    uintptr_t(wptr_ - begin()) + record_size, record_size);
-  WriteChunkRecord(wptr_, record, src, size);
-  TRACE_BUFFER_DLOG("Chunk raw: %s", HexDump(wptr_, record_size).c_str());
-  wptr_ += record_size;
-  if (wptr_ >= end()) {
-    PERFETTO_DCHECK(padding_size == 0);
-    wptr_ = begin();
-    stats_.set_write_wrap_count(stats_.write_wrap_count() + 1);
-  }
-  DcheckIsAlignedAndWithinBounds(wptr_);
-
-  // Chunks may be received out of order, so only update last_chunk_id if the
-  // new chunk_id is larger. But take into account overflows by only selecting
-  // the new ID if its distance to the latest ID is smaller than half the number
-  // space.
-  //
-  // This accounts for both the case where the new ID has just overflown and
-  // last_chunk_id be updated even though it's smaller (e.g. |chunk_id| = 1 and
-  // |last_chunk_id| = kMaxChunkId; chunk_id - last_chunk_id = 0) and the case
-  // where the new ID is an out-of-order ID right after an overflow and
-  // last_chunk_id shouldn't be updated even though it's larger (e.g. |chunk_id|
-  // = kMaxChunkId and |last_chunk_id| = 1; chunk_id - last_chunk_id =
-  // kMaxChunkId - 1).
-  auto producer_and_writer_id = std::make_pair(producer_id_trusted, writer_id);
-  ChunkID& last_chunk_id = last_chunk_id_written_[producer_and_writer_id];
-  static_assert(std::numeric_limits<ChunkID>::max() == kMaxChunkID,
-                "This code assumes that ChunkID wraps at kMaxChunkID");
-  if (chunk_id - last_chunk_id < kMaxChunkID / 2) {
-    last_chunk_id = chunk_id;
-  } else {
-    stats_.set_chunks_committed_out_of_order(
-        stats_.chunks_committed_out_of_order() + 1);
-  }
-
-  if (padding_size)
-    AddPaddingRecord(padding_size);
-}
-
-ssize_t TraceBuffer::DeleteNextChunksFor(size_t bytes_to_clear) {
-  PERFETTO_CHECK(!discard_writes_);
-
-  // Find the position of the first chunk which begins at or after
-  // (|wptr_| + |bytes|). Note that such a chunk might not exist and we might
-  // either reach the end of the buffer or a zeroed region of the buffer.
-  uint8_t* next_chunk_ptr = wptr_;
-  uint8_t* search_end = wptr_ + bytes_to_clear;
-  TRACE_BUFFER_DLOG("Delete [%zu %zu]", wptr_ - begin(), search_end - begin());
-  DcheckIsAlignedAndWithinBounds(wptr_);
-  PERFETTO_DCHECK(search_end <= end());
-  std::vector<ChunkMap::iterator> index_delete;
-  uint64_t chunks_overwritten = stats_.chunks_overwritten();
-  uint64_t bytes_overwritten = stats_.bytes_overwritten();
-  uint64_t padding_bytes_cleared = stats_.padding_bytes_cleared();
-  while (next_chunk_ptr < search_end) {
-    const ChunkRecord& next_chunk = *GetChunkRecordAt(next_chunk_ptr);
-    TRACE_BUFFER_DLOG(
-        "  scanning chunk [%zu %zu] (valid=%d)", next_chunk_ptr - begin(),
-        next_chunk_ptr - begin() + next_chunk.size, next_chunk.is_valid());
-
-    // We just reached the untouched part of the buffer, it's going to be all
-    // zeroes from here to end().
-    // Optimization: if during Initialize() we fill the buffer with padding
-    // records we could get rid of this branch.
-    if (PERFETTO_UNLIKELY(!next_chunk.is_valid())) {
-      // This should happen only at the first iteration. The zeroed area can
-      // only begin precisely at the |wptr_|, not after. Otherwise it means that
-      // we wrapped but screwed up the ChunkRecord chain.
-      PERFETTO_DCHECK(next_chunk_ptr == wptr_);
-      return 0;
-    }
-
-    // Remove |next_chunk| from the index, unless it's a padding record (padding
-    // records are not part of the index).
-    if (PERFETTO_LIKELY(!next_chunk.is_padding)) {
-      ChunkMeta::Key key(next_chunk);
-      auto it = index_.find(key);
-      bool will_remove = false;
-      if (PERFETTO_LIKELY(it != index_.end())) {
-        const ChunkMeta& meta = it->second;
-        if (PERFETTO_UNLIKELY(meta.num_fragments_read < meta.num_fragments)) {
-          if (overwrite_policy_ == kDiscard)
-            return -1;
-          chunks_overwritten++;
-          bytes_overwritten += next_chunk.size;
-        }
-        index_delete.push_back(it);
-        will_remove = true;
-      }
-      TRACE_BUFFER_DLOG(
-          "  del index {%" PRIu32 ",%" PRIu32 ",%u} @ [%lu - %lu] %d",
-          key.producer_id, key.writer_id, key.chunk_id,
-          next_chunk_ptr - begin(), next_chunk_ptr - begin() + next_chunk.size,
-          will_remove);
-      PERFETTO_DCHECK(will_remove);
-    } else {
-      padding_bytes_cleared += next_chunk.size;
-    }
-
-    next_chunk_ptr += next_chunk.size;
-
-    // We should never hit this, unless we managed to screw up while writing
-    // to the buffer and breaking the ChunkRecord(s) chain.
-    // TODO(primiano): Write more meaningful logging with the status of the
-    // buffer, to get more actionable bugs in case we hit this.
-    PERFETTO_CHECK(next_chunk_ptr <= end());
-  }
-
-  // Remove from the index.
-  for (auto it : index_delete) {
-    index_.erase(it);
-  }
-  stats_.set_chunks_overwritten(chunks_overwritten);
-  stats_.set_bytes_overwritten(bytes_overwritten);
-  stats_.set_padding_bytes_cleared(padding_bytes_cleared);
-
-  PERFETTO_DCHECK(next_chunk_ptr >= search_end && next_chunk_ptr <= end());
-  return static_cast<ssize_t>(next_chunk_ptr - search_end);
-}
-
-void TraceBuffer::AddPaddingRecord(size_t size) {
-  PERFETTO_DCHECK(size >= sizeof(ChunkRecord) && size <= ChunkRecord::kMaxSize);
-  ChunkRecord record(size);
-  record.is_padding = 1;
-  TRACE_BUFFER_DLOG("AddPaddingRecord @ [%lu - %lu] %zu", wptr_ - begin(),
-                    uintptr_t(wptr_ - begin()) + size, size);
-  WriteChunkRecord(wptr_, record, nullptr, size - sizeof(ChunkRecord));
-  stats_.set_padding_bytes_written(stats_.padding_bytes_written() + size);
-  // |wptr_| is deliberately not advanced when writing a padding record.
-}
-
-bool TraceBuffer::TryPatchChunkContents(ProducerID producer_id,
-                                        WriterID writer_id,
-                                        ChunkID chunk_id,
-                                        const Patch* patches,
-                                        size_t patches_size,
-                                        bool other_patches_pending) {
-  ChunkMeta::Key key(producer_id, writer_id, chunk_id);
-  auto it = index_.find(key);
-  if (it == index_.end()) {
-    stats_.set_patches_failed(stats_.patches_failed() + 1);
-    return false;
-  }
-  ChunkMeta& chunk_meta = it->second;
-
-  // Check that the index is consistent with the actual ProducerID/WriterID
-  // stored in the ChunkRecord.
-  PERFETTO_DCHECK(ChunkMeta::Key(*chunk_meta.chunk_record) == key);
-  uint8_t* chunk_begin = reinterpret_cast<uint8_t*>(chunk_meta.chunk_record);
-  PERFETTO_DCHECK(chunk_begin >= begin());
-  uint8_t* chunk_end = chunk_begin + chunk_meta.chunk_record->size;
-  PERFETTO_DCHECK(chunk_end <= end());
-
-  static_assert(Patch::kSize == SharedMemoryABI::kPacketHeaderSize,
-                "Patch::kSize out of sync with SharedMemoryABI");
-
-  for (size_t i = 0; i < patches_size; i++) {
-    uint8_t* ptr =
-        chunk_begin + sizeof(ChunkRecord) + patches[i].offset_untrusted;
-    TRACE_BUFFER_DLOG("PatchChunk {%" PRIu32 ",%" PRIu32
-                      ",%u} size=%zu @ %zu with {%02x %02x %02x %02x} cur "
-                      "{%02x %02x %02x %02x}",
-                      producer_id, writer_id, chunk_id, chunk_end - chunk_begin,
-                      patches[i].offset_untrusted, patches[i].data[0],
-                      patches[i].data[1], patches[i].data[2],
-                      patches[i].data[3], ptr[0], ptr[1], ptr[2], ptr[3]);
-    if (ptr < chunk_begin + sizeof(ChunkRecord) ||
-        ptr > chunk_end - Patch::kSize) {
-      // Either the IPC was so slow and in the meantime the writer managed to
-      // wrap over |chunk_id| or the producer sent a malicious IPC.
-      stats_.set_patches_failed(stats_.patches_failed() + 1);
-      return false;
-    }
-
-    // DCHECK that we are writing into a zero-filled size field and not into
-    // valid data. It relies on ScatteredStreamWriter::ReserveBytes() to
-    // zero-fill reservations in debug builds.
-    char zero[Patch::kSize]{};
-    PERFETTO_DCHECK(memcmp(ptr, &zero, Patch::kSize) == 0);
-
-    memcpy(ptr, &patches[i].data[0], Patch::kSize);
-  }
-  TRACE_BUFFER_DLOG(
-      "Chunk raw (after patch): %s",
-      HexDump(chunk_begin, chunk_meta.chunk_record->size).c_str());
-
-  stats_.set_patches_succeeded(stats_.patches_succeeded() + patches_size);
-  if (!other_patches_pending) {
-    chunk_meta.flags &= ~kChunkNeedsPatching;
-    chunk_meta.chunk_record->flags = chunk_meta.flags;
-  }
-  return true;
-}
-
-void TraceBuffer::BeginRead() {
-  read_iter_ = GetReadIterForSequence(index_.begin());
-#if PERFETTO_DCHECK_IS_ON()
-  changed_since_last_read_ = false;
-#endif
-}
-
-TraceBuffer::SequenceIterator TraceBuffer::GetReadIterForSequence(
-    ChunkMap::iterator seq_begin) {
-  SequenceIterator iter;
-  iter.seq_begin = seq_begin;
-  if (seq_begin == index_.end()) {
-    iter.cur = iter.seq_end = index_.end();
-    return iter;
-  }
-
-#if PERFETTO_DCHECK_IS_ON()
-  // Either |seq_begin| is == index_.begin() or the item immediately before must
-  // belong to a different {ProducerID, WriterID} sequence.
-  if (seq_begin != index_.begin() && seq_begin != index_.end()) {
-    auto prev_it = seq_begin;
-    prev_it--;
-    PERFETTO_DCHECK(
-        seq_begin == index_.begin() ||
-        std::tie(prev_it->first.producer_id, prev_it->first.writer_id) <
-            std::tie(seq_begin->first.producer_id, seq_begin->first.writer_id));
-  }
-#endif
-
-  // Find the first entry that has a greater {ProducerID, WriterID} (or just
-  // index_.end() if we reached the end).
-  ChunkMeta::Key key = seq_begin->first;  // Deliberate copy.
-  key.chunk_id = kMaxChunkID;
-  iter.seq_end = index_.upper_bound(key);
-  PERFETTO_DCHECK(iter.seq_begin != iter.seq_end);
-
-  // Now find the first entry between [seq_begin, seq_end) that is
-  // > last_chunk_id_written_. This is where we the sequence will start (see
-  // notes about wrapping of IDs in the header).
-  auto producer_and_writer_id = std::make_pair(key.producer_id, key.writer_id);
-  PERFETTO_DCHECK(last_chunk_id_written_.count(producer_and_writer_id));
-  iter.wrapping_id = last_chunk_id_written_[producer_and_writer_id];
-  key.chunk_id = iter.wrapping_id;
-  iter.cur = index_.upper_bound(key);
-  if (iter.cur == iter.seq_end)
-    iter.cur = iter.seq_begin;
-  return iter;
-}
-
-void TraceBuffer::SequenceIterator::MoveNext() {
-  // Stop iterating when we reach the end of the sequence.
-  // Note: |seq_begin| might be == |seq_end|.
-  if (cur == seq_end || cur->first.chunk_id == wrapping_id) {
-    cur = seq_end;
-    return;
-  }
-
-  // If the current chunk wasn't completed yet, we shouldn't advance past it as
-  // it may be rewritten with additional packets.
-  if (!cur->second.is_complete()) {
-    cur = seq_end;
-    return;
-  }
-
-  ChunkID last_chunk_id = cur->first.chunk_id;
-  if (++cur == seq_end)
-    cur = seq_begin;
-
-  // There may be a missing chunk in the sequence of chunks, in which case the
-  // next chunk's ID won't follow the last one's. If so, skip the rest of the
-  // sequence. We'll return to it later once the hole is filled.
-  if (last_chunk_id + 1 != cur->first.chunk_id)
-    cur = seq_end;
-}
-
-bool TraceBuffer::ReadNextTracePacket(
-    TracePacket* packet,
-    PacketSequenceProperties* sequence_properties,
-    bool* previous_packet_on_sequence_dropped) {
-  // Note: MoveNext() moves only within the next chunk within the same
-  // {ProducerID, WriterID} sequence. Here we want to:
-  // - return the next patched+complete packet in the current sequence, if any.
-  // - return the first patched+complete packet in the next sequence, if any.
-  // - return false if none of the above is found.
-  TRACE_BUFFER_DLOG("ReadNextTracePacket()");
-
-  // Just in case we forget to initialize these below.
-  *sequence_properties = {0, kInvalidUid, 0};
-  *previous_packet_on_sequence_dropped = false;
-
-  // At the start of each sequence iteration, we consider the last read packet
-  // dropped. While iterating over the chunks in the sequence, we update this
-  // flag based on our knowledge about the last packet that was read from each
-  // chunk (|last_read_packet_skipped| in ChunkMeta).
-  bool previous_packet_dropped = true;
-
-#if PERFETTO_DCHECK_IS_ON()
-  PERFETTO_DCHECK(!changed_since_last_read_);
-#endif
-  for (;; read_iter_.MoveNext()) {
-    if (PERFETTO_UNLIKELY(!read_iter_.is_valid())) {
-      // We ran out of chunks in the current {ProducerID, WriterID} sequence or
-      // we just reached the index_.end().
-
-      if (PERFETTO_UNLIKELY(read_iter_.seq_end == index_.end()))
-        return false;
-
-      // We reached the end of sequence, move to the next one.
-      // Note: ++read_iter_.seq_end might become index_.end(), but
-      // GetReadIterForSequence() knows how to deal with that.
-      read_iter_ = GetReadIterForSequence(read_iter_.seq_end);
-      PERFETTO_DCHECK(read_iter_.is_valid() && read_iter_.cur != index_.end());
-      previous_packet_dropped = true;
-    }
-
-    ChunkMeta* chunk_meta = &*read_iter_;
-
-    // If the chunk has holes that are awaiting to be patched out-of-band,
-    // skip the current sequence and move to the next one.
-    if (chunk_meta->flags & kChunkNeedsPatching) {
-      read_iter_.MoveToEnd();
-      continue;
-    }
-
-    const ProducerID trusted_producer_id = read_iter_.producer_id();
-    const WriterID writer_id = read_iter_.writer_id();
-    const uid_t trusted_uid = chunk_meta->trusted_uid;
-
-    // At this point we have a chunk in |chunk_meta| that has not been fully
-    // read. We don't know yet whether we have enough data to read the full
-    // packet (in the case it's fragmented over several chunks) and we are about
-    // to find that out. Specifically:
-    // A) If the first fragment is unread and is a fragment continuing from a
-    //    previous chunk, it means we have missed the previous ChunkID. In
-    //    fact, if this wasn't the case, a previous call to ReadNext() shouldn't
-    //    have moved the cursor to this chunk.
-    // B) Any fragment > 0 && < last is always readable. By definition an inner
-    //    packet is never fragmented and hence doesn't require neither stitching
-    //    nor any out-of-band patching. The same applies to the last packet
-    //    iff it doesn't continue on the next chunk.
-    // C) If the last packet (which might be also the only packet in the chunk)
-    //    is a fragment and continues on the next chunk, we peek at the next
-    //    chunks and, if we have all of them, mark as read and move the cursor.
-    //
-    // +---------------+   +-------------------+  +---------------+
-    // | ChunkID: 1    |   | ChunkID: 2        |  | ChunkID: 3    |
-    // |---------------+   +-------------------+  +---------------+
-    // | Packet 1      |   |                   |  | ... Packet 3  |
-    // | Packet 2      |   | ... Packet 3  ... |  | Packet 4      |
-    // | Packet 3  ... |   |                   |  | Packet 5 ...  |
-    // +---------------+   +-------------------+  +---------------+
-
-    PERFETTO_DCHECK(chunk_meta->num_fragments_read <=
-                    chunk_meta->num_fragments);
-
-    // If we didn't read any packets from this chunk, the last packet was from
-    // the previous chunk we iterated over; so don't update
-    // |previous_packet_dropped| in this case.
-    if (chunk_meta->num_fragments_read > 0)
-      previous_packet_dropped = chunk_meta->last_read_packet_skipped();
-
-    while (chunk_meta->num_fragments_read < chunk_meta->num_fragments) {
-      enum { kSkip = 0, kReadOnePacket, kTryReadAhead } action;
-      if (chunk_meta->num_fragments_read == 0) {
-        if (chunk_meta->flags & kFirstPacketContinuesFromPrevChunk) {
-          action = kSkip;  // Case A.
-        } else if (chunk_meta->num_fragments == 1 &&
-                   (chunk_meta->flags & kLastPacketContinuesOnNextChunk)) {
-          action = kTryReadAhead;  // Case C.
-        } else {
-          action = kReadOnePacket;  // Case B.
-        }
-      } else if (chunk_meta->num_fragments_read <
-                     chunk_meta->num_fragments - 1 ||
-                 !(chunk_meta->flags & kLastPacketContinuesOnNextChunk)) {
-        action = kReadOnePacket;  // Case B.
-      } else {
-        action = kTryReadAhead;  // Case C.
-      }
-
-      TRACE_BUFFER_DLOG("  chunk %u, packet %hu of %hu, action=%d",
-                        read_iter_.chunk_id(), chunk_meta->num_fragments_read,
-                        chunk_meta->num_fragments, action);
-
-      if (action == kSkip) {
-        // This fragment will be skipped forever, not just in this ReadPacket()
-        // iteration. This happens by virtue of ReadNextPacketInChunk()
-        // incrementing the |num_fragments_read| and marking the fragment as
-        // read even if we didn't really.
-        ReadNextPacketInChunk(chunk_meta, nullptr);
-        chunk_meta->set_last_read_packet_skipped(true);
-        previous_packet_dropped = true;
-        continue;
-      }
-
-      if (action == kReadOnePacket) {
-        // The easy peasy case B.
-        ReadPacketResult result = ReadNextPacketInChunk(chunk_meta, packet);
-
-        if (PERFETTO_LIKELY(result == ReadPacketResult::kSucceeded)) {
-          *sequence_properties = {trusted_producer_id, trusted_uid, writer_id};
-          *previous_packet_on_sequence_dropped = previous_packet_dropped;
-          return true;
-        } else if (result == ReadPacketResult::kFailedEmptyPacket) {
-          // We can ignore and skip empty packets.
-          PERFETTO_DCHECK(packet->slices().empty());
-          continue;
-        }
-
-        // In extremely rare cases (producer bugged / malicious) the chunk might
-        // contain an invalid fragment. In such case we don't want to stall the
-        // sequence but just skip the chunk and move on. ReadNextPacketInChunk()
-        // marks the chunk as fully read, so we don't attempt to read from it
-        // again in a future call to ReadBuffers(). It also already records an
-        // abi violation for this.
-        PERFETTO_DCHECK(result == ReadPacketResult::kFailedInvalidPacket);
-        chunk_meta->set_last_read_packet_skipped(true);
-        previous_packet_dropped = true;
-        break;
-      }
-
-      PERFETTO_DCHECK(action == kTryReadAhead);
-      ReadAheadResult ra_res = ReadAhead(packet);
-      if (ra_res == ReadAheadResult::kSucceededReturnSlices) {
-        stats_.set_readaheads_succeeded(stats_.readaheads_succeeded() + 1);
-        *sequence_properties = {trusted_producer_id, trusted_uid, writer_id};
-        *previous_packet_on_sequence_dropped = previous_packet_dropped;
-        return true;
-      }
-
-      if (ra_res == ReadAheadResult::kFailedMoveToNextSequence) {
-        // readahead didn't find a contiguous packet sequence. We'll try again
-        // on the next ReadPacket() call.
-        stats_.set_readaheads_failed(stats_.readaheads_failed() + 1);
-
-        // TODO(primiano): optimization: this MoveToEnd() is the reason why
-        // MoveNext() (that is called in the outer for(;;MoveNext)) needs to
-        // deal gracefully with the case of |cur|==|seq_end|. Maybe we can do
-        // something to avoid that check by reshuffling the code here?
-        read_iter_.MoveToEnd();
-
-        // This break will go back to beginning of the for(;;MoveNext()). That
-        // will move to the next sequence because we set the read iterator to
-        // its end.
-        break;
-      }
-
-      PERFETTO_DCHECK(ra_res == ReadAheadResult::kFailedStayOnSameSequence);
-
-      // In this case ReadAhead() might advance |read_iter_|, so we need to
-      // re-cache the |chunk_meta| pointer to point to the current chunk.
-      chunk_meta = &*read_iter_;
-      chunk_meta->set_last_read_packet_skipped(true);
-      previous_packet_dropped = true;
-    }  // while(...)  [iterate over packet fragments for the current chunk].
-  }    // for(;;MoveNext()) [iterate over chunks].
-}
-
-TraceBuffer::ReadAheadResult TraceBuffer::ReadAhead(TracePacket* packet) {
-  static_assert(static_cast<ChunkID>(kMaxChunkID + 1) == 0,
-                "relying on kMaxChunkID to wrap naturally");
-  TRACE_BUFFER_DLOG(" readahead start @ chunk %u", read_iter_.chunk_id());
-  ChunkID next_chunk_id = read_iter_.chunk_id() + 1;
-  SequenceIterator it = read_iter_;
-  for (it.MoveNext(); it.is_valid(); it.MoveNext(), next_chunk_id++) {
-    // We should stay within the same sequence while iterating here.
-    PERFETTO_DCHECK(it.producer_id() == read_iter_.producer_id() &&
-                    it.writer_id() == read_iter_.writer_id());
-
-    TRACE_BUFFER_DLOG("   expected chunk ID: %u, actual ID: %u", next_chunk_id,
-                      it.chunk_id());
-
-    if (PERFETTO_UNLIKELY((*it).num_fragments == 0))
-      continue;
-
-    // If we miss the next chunk, stop looking in the current sequence and
-    // try another sequence. This chunk might come in the near future.
-    // The second condition is the edge case of a buggy/malicious
-    // producer. The ChunkID is contiguous but its flags don't make sense.
-    if (it.chunk_id() != next_chunk_id ||
-        PERFETTO_UNLIKELY(
-            !((*it).flags & kFirstPacketContinuesFromPrevChunk))) {
-      return ReadAheadResult::kFailedMoveToNextSequence;
-    }
-
-    // If the chunk is contiguous but has not been patched yet move to the next
-    // sequence and try coming back here on the next ReadNextTracePacket() call.
-    // TODO(primiano): add a test to cover this, it's a subtle case.
-    if ((*it).flags & kChunkNeedsPatching)
-      return ReadAheadResult::kFailedMoveToNextSequence;
-
-    // This is the case of an intermediate chunk which contains only one
-    // fragment which continues on the next chunk. This is the case for large
-    // packets, e.g.: [Packet0, Packet1(0)] [Packet1(1)] [Packet1(2), ...]
-    // (Packet1(X) := fragment X of Packet1).
-    if ((*it).num_fragments == 1 &&
-        ((*it).flags & kLastPacketContinuesOnNextChunk)) {
-      continue;
-    }
-
-    // We made it! We got all fragments for the packet without holes.
-    TRACE_BUFFER_DLOG("  readahead success @ chunk %u", it.chunk_id());
-    PERFETTO_DCHECK(((*it).num_fragments == 1 &&
-                     !((*it).flags & kLastPacketContinuesOnNextChunk)) ||
-                    (*it).num_fragments > 1);
-
-    // Now let's re-iterate over the [read_iter_, it] sequence and mark
-    // all the fragments as read.
-    bool packet_corruption = false;
-    for (;;) {
-      PERFETTO_DCHECK(read_iter_.is_valid());
-      TRACE_BUFFER_DLOG("    commit chunk %u", read_iter_.chunk_id());
-      if (PERFETTO_LIKELY((*read_iter_).num_fragments > 0)) {
-        // In the unlikely case of a corrupted packet (corrupted or empty
-        // fragment), invalidate the all stitching and move on to the next chunk
-        // in the same sequence, if any.
-        packet_corruption |= ReadNextPacketInChunk(&*read_iter_, packet) ==
-                             ReadPacketResult::kFailedInvalidPacket;
-      }
-      if (read_iter_.cur == it.cur)
-        break;
-      read_iter_.MoveNext();
-    }  // for(;;)
-    PERFETTO_DCHECK(read_iter_.cur == it.cur);
-
-    if (PERFETTO_UNLIKELY(packet_corruption)) {
-      // ReadNextPacketInChunk() already records an abi violation for this case.
-      *packet = TracePacket();  // clear.
-      return ReadAheadResult::kFailedStayOnSameSequence;
-    }
-
-    return ReadAheadResult::kSucceededReturnSlices;
-  }  // for(it...)  [readahead loop]
-  return ReadAheadResult::kFailedMoveToNextSequence;
-}
-
-TraceBuffer::ReadPacketResult TraceBuffer::ReadNextPacketInChunk(
-    ChunkMeta* chunk_meta,
-    TracePacket* packet) {
-  PERFETTO_DCHECK(chunk_meta->num_fragments_read < chunk_meta->num_fragments);
-  PERFETTO_DCHECK(!(chunk_meta->flags & kChunkNeedsPatching));
-
-  const uint8_t* record_begin =
-      reinterpret_cast<const uint8_t*>(chunk_meta->chunk_record);
-  const uint8_t* record_end = record_begin + chunk_meta->chunk_record->size;
-  const uint8_t* packets_begin = record_begin + sizeof(ChunkRecord);
-  const uint8_t* packet_begin = packets_begin + chunk_meta->cur_fragment_offset;
-
-  if (PERFETTO_UNLIKELY(packet_begin < packets_begin ||
-                        packet_begin >= record_end)) {
-    // The producer has a bug or is malicious and did declare that the chunk
-    // contains more packets beyond its boundaries.
-    stats_.set_abi_violations(stats_.abi_violations() + 1);
-    PERFETTO_DCHECK(suppress_client_dchecks_for_testing_);
-    chunk_meta->cur_fragment_offset = 0;
-    chunk_meta->num_fragments_read = chunk_meta->num_fragments;
-    if (PERFETTO_LIKELY(chunk_meta->is_complete())) {
-      stats_.set_chunks_read(stats_.chunks_read() + 1);
-      stats_.set_bytes_read(stats_.bytes_read() +
-                            chunk_meta->chunk_record->size);
-    }
-    return ReadPacketResult::kFailedInvalidPacket;
-  }
-
-  // A packet (or a fragment) starts with a varint stating its size, followed
-  // by its content. The varint shouldn't be larger than 4 bytes (just in case
-  // the producer is using a redundant encoding)
-  uint64_t packet_size = 0;
-  const uint8_t* header_end =
-      std::min(packet_begin + protozero::proto_utils::kMessageLengthFieldSize,
-               record_end);
-  const uint8_t* packet_data = protozero::proto_utils::ParseVarInt(
-      packet_begin, header_end, &packet_size);
-
-  const uint8_t* next_packet = packet_data + packet_size;
-  if (PERFETTO_UNLIKELY(next_packet <= packet_begin ||
-                        next_packet > record_end)) {
-    // In BufferExhaustedPolicy::kDrop mode, TraceWriter may abort a fragmented
-    // packet by writing an invalid size in the last fragment's header. We
-    // should handle this case without recording an ABI violation (since Android
-    // R).
-    if (packet_size != SharedMemoryABI::kPacketSizeDropPacket) {
-      stats_.set_abi_violations(stats_.abi_violations() + 1);
-      PERFETTO_DCHECK(suppress_client_dchecks_for_testing_);
-    } else {
-      stats_.set_trace_writer_packet_loss(stats_.trace_writer_packet_loss() +
-                                          1);
-    }
-    chunk_meta->cur_fragment_offset = 0;
-    chunk_meta->num_fragments_read = chunk_meta->num_fragments;
-    if (PERFETTO_LIKELY(chunk_meta->is_complete())) {
-      stats_.set_chunks_read(stats_.chunks_read() + 1);
-      stats_.set_bytes_read(stats_.bytes_read() +
-                            chunk_meta->chunk_record->size);
-    }
-    return ReadPacketResult::kFailedInvalidPacket;
-  }
-
-  chunk_meta->cur_fragment_offset =
-      static_cast<uint16_t>(next_packet - packets_begin);
-  chunk_meta->num_fragments_read++;
-
-  if (PERFETTO_UNLIKELY(chunk_meta->num_fragments_read ==
-                            chunk_meta->num_fragments &&
-                        chunk_meta->is_complete())) {
-    stats_.set_chunks_read(stats_.chunks_read() + 1);
-    stats_.set_bytes_read(stats_.bytes_read() + chunk_meta->chunk_record->size);
-  } else {
-    // We have at least one more packet to parse. It should be within the chunk.
-    if (chunk_meta->cur_fragment_offset + sizeof(ChunkRecord) >=
-        chunk_meta->chunk_record->size) {
-      PERFETTO_DCHECK(suppress_client_dchecks_for_testing_);
-    }
-  }
-
-  chunk_meta->set_last_read_packet_skipped(false);
-
-  if (PERFETTO_UNLIKELY(packet_size == 0))
-    return ReadPacketResult::kFailedEmptyPacket;
-
-  if (PERFETTO_LIKELY(packet))
-    packet->AddSlice(packet_data, static_cast<size_t>(packet_size));
-
-  return ReadPacketResult::kSucceeded;
-}
-
-void TraceBuffer::DiscardWrite() {
-  PERFETTO_DCHECK(overwrite_policy_ == kDiscard);
-  discard_writes_ = true;
-  stats_.set_chunks_discarded(stats_.chunks_discarded() + 1);
-  TRACE_BUFFER_DLOG("  discarding write");
-}
-
-}  // namespace perfetto
-// gen_amalgamated begin source: src/tracing/core/tracing_service_impl.cc
-// gen_amalgamated begin header: src/tracing/core/tracing_service_impl.h
-// gen_amalgamated begin header: include/perfetto/ext/base/circular_queue.h
-/*
- * Copyright (C) 2019 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef INCLUDE_PERFETTO_EXT_BASE_CIRCULAR_QUEUE_H_
-#define INCLUDE_PERFETTO_EXT_BASE_CIRCULAR_QUEUE_H_
-
-#include <stdint.h>
-#include <iterator>
-
-// gen_amalgamated expanded: #include "perfetto/base/logging.h"
-// gen_amalgamated expanded: #include "perfetto/ext/base/utils.h"
-
-namespace perfetto {
-namespace base {
-
-// CircularQueue is a push-back-only / pop-front-only queue with the following
-// characteristics:
-// - The storage is based on a flat circular buffer. Beginning and end wrap
-//   as necessary, to keep pushes and pops O(1) as long as capacity expansion is
-//   not required.
-// - Capacity is automatically expanded like in a std::vector. Expansion has a
-//   O(N) cost.
-// - It allows random access, allowing in-place std::sort.
-// - Iterators are not stable. Mutating the container invalidates all iterators.
-// - It doesn't bother with const-correctness.
-//
-// Implementation details:
-// Internally, |begin|, |end| and iterators use 64-bit monotonic indexes, which
-// are incremented as if the queue was backed by unlimited storage.
-// Even assuming that elements are inserted and removed every nanosecond, 64 bit
-// is enough for 584 years.
-// Wrapping happens only when addressing elements in the underlying circular
-// storage. This limits the complexity and avoiding dealing with modular
-// arithmetic all over the places.
-template <class T>
-class CircularQueue {
- public:
-  class Iterator {
-   public:
-    using difference_type = ptrdiff_t;
-    using value_type = T;
-    using pointer = T*;
-    using reference = T&;
-    using iterator_category = std::random_access_iterator_tag;
-
-    Iterator(CircularQueue* queue, uint64_t pos, uint32_t generation)
-        : queue_(queue),
-          pos_(pos)
-#if PERFETTO_DCHECK_IS_ON()
-          ,
-          generation_(generation)
-#endif
-    {
-      ignore_result(generation);
-    }
-
-    Iterator(const Iterator&) noexcept = default;
-    Iterator& operator=(const Iterator&) noexcept = default;
-    Iterator(Iterator&&) noexcept = default;
-    Iterator& operator=(Iterator&&) noexcept = default;
-
-    T* operator->() const {
-#if PERFETTO_DCHECK_IS_ON()
-      PERFETTO_DCHECK(generation_ == queue_->generation());
-#endif
-      return queue_->Get(pos_);
-    }
-
-    T& operator*() const { return *(operator->()); }
-
-    value_type& operator[](difference_type i) { return *(*this + i); }
-
-    Iterator& operator++() {
-      Add(1);
-      return *this;
-    }
-
-    Iterator operator++(int) {
-      Iterator ret = *this;
-      Add(1);
-      return ret;
-    }
-
-    Iterator& operator--() {
-      Add(-1);
-      return *this;
-    }
-
-    Iterator operator--(int) {
-      Iterator ret = *this;
-      Add(-1);
-      return ret;
-    }
-
-    friend Iterator operator+(const Iterator& iter, difference_type offset) {
-      Iterator ret = iter;
-      ret.Add(offset);
-      return ret;
-    }
-
-    Iterator& operator+=(difference_type offset) {
-      Add(offset);
-      return *this;
-    }
-
-    friend Iterator operator-(const Iterator& iter, difference_type offset) {
-      Iterator ret = iter;
-      ret.Add(-offset);
-      return ret;
-    }
-
-    Iterator& operator-=(difference_type offset) {
-      Add(-offset);
-      return *this;
-    }
-
-    friend ptrdiff_t operator-(const Iterator& lhs, const Iterator& rhs) {
-      return static_cast<ptrdiff_t>(lhs.pos_) -
-             static_cast<ptrdiff_t>(rhs.pos_);
-    }
-
-    friend bool operator==(const Iterator& lhs, const Iterator& rhs) {
-      return lhs.pos_ == rhs.pos_;
-    }
-
-    friend bool operator!=(const Iterator& lhs, const Iterator& rhs) {
-      return lhs.pos_ != rhs.pos_;
-    }
-
-    friend bool operator<(const Iterator& lhs, const Iterator& rhs) {
-      return lhs.pos_ < rhs.pos_;
-    }
-
-    friend bool operator<=(const Iterator& lhs, const Iterator& rhs) {
-      return lhs.pos_ <= rhs.pos_;
-    }
-
-    friend bool operator>(const Iterator& lhs, const Iterator& rhs) {
-      return lhs.pos_ > rhs.pos_;
-    }
-
-    friend bool operator>=(const Iterator& lhs, const Iterator& rhs) {
-      return lhs.pos_ >= rhs.pos_;
-    }
-
-   private:
-    inline void Add(difference_type offset) {
-      pos_ = static_cast<uint64_t>(static_cast<difference_type>(pos_) + offset);
-      PERFETTO_DCHECK(pos_ <= queue_->end_);
-    }
-
-    CircularQueue* queue_;
-    uint64_t pos_;
-
-#if PERFETTO_DCHECK_IS_ON()
-    uint32_t generation_;
-#endif
-  };
-
-  CircularQueue(size_t initial_capacity = 1024) { Grow(initial_capacity); }
-
-  CircularQueue(CircularQueue&& other) noexcept {
-    // Copy all fields using the (private) default copy assignment operator.
-    *this = other;
-    increment_generation();
-    new (&other) CircularQueue();  // Reset the old queue so it's still usable.
-  }
-
-  CircularQueue& operator=(CircularQueue&& other) {
-    this->~CircularQueue();                      // Destroy the current state.
-    new (this) CircularQueue(std::move(other));  // Use the move ctor above.
-    return *this;
-  }
-
-  ~CircularQueue() {
-    if (!entries_) {
-      PERFETTO_DCHECK(empty());
-      return;
-    }
-    clear();  // Invoke destructors on all alive entries.
-    PERFETTO_DCHECK(empty());
-    free(entries_);
-  }
-
-  template <typename... Args>
-  void emplace_back(Args&&... args) {
-    increment_generation();
-    if (PERFETTO_UNLIKELY(size() >= capacity_))
-      Grow();
-    T* slot = Get(end_++);
-    new (slot) T(std::forward<Args>(args)...);
-  }
-
-  void erase_front(size_t n) {
-    increment_generation();
-    for (; n && (begin_ < end_); --n) {
-      Get(begin_)->~T();
-      begin_++;  // This needs to be its own statement, Get() checks begin_.
-    }
-  }
-
-  void pop_front() { erase_front(1); }
-
-  void clear() { erase_front(size()); }
-
-  T& at(size_t idx) {
-    PERFETTO_DCHECK(idx < size());
-    return *Get(begin_ + idx);
-  }
-
-  Iterator begin() { return Iterator(this, begin_, generation()); }
-  Iterator end() { return Iterator(this, end_, generation()); }
-  T& front() { return *begin(); }
-  T& back() { return *(end() - 1); }
-
-  bool empty() const { return size() == 0; }
-
-  size_t size() const {
-    PERFETTO_DCHECK(end_ - begin_ <= capacity_);
-    return static_cast<size_t>(end_ - begin_);
-  }
-
-  size_t capacity() const { return capacity_; }
-
-#if PERFETTO_DCHECK_IS_ON()
-  uint32_t generation() const { return generation_; }
-  void increment_generation() { ++generation_; }
-#else
-  uint32_t generation() const { return 0; }
-  void increment_generation() {}
-#endif
-
- private:
-  CircularQueue(const CircularQueue&) = delete;
-  CircularQueue& operator=(const CircularQueue&) = default;
-
-  void Grow(size_t new_capacity = 0) {
-    // Capacity must be always a power of two. This allows Get() to use a simple
-    // bitwise-AND for handling the wrapping instead of a full division.
-    new_capacity = new_capacity ? new_capacity : capacity_ * 2;
-    PERFETTO_CHECK((new_capacity & (new_capacity - 1)) == 0);  // Must be pow2.
-
-    // On 32-bit systems this might hit the 4GB wall and overflow. We can't do
-    // anything other than crash in this case.
-    PERFETTO_CHECK(new_capacity > capacity_);
-    size_t malloc_size = new_capacity * sizeof(T);
-    PERFETTO_CHECK(malloc_size > new_capacity);
-    auto* new_vec = static_cast<T*>(malloc(malloc_size));
-
-    // Move all elements in the expanded array.
-    size_t new_size = 0;
-    for (uint64_t i = begin_; i < end_; i++)
-      new (&new_vec[new_size++]) T(std::move(*Get(i)));  // Placement move ctor.
-
-    // Even if all the elements are std::move()-d and likely empty, we are still
-    // required to call the dtor for them.
-    for (uint64_t i = begin_; i < end_; i++)
-      Get(i)->~T();
-    free(entries_);  // It's fine to free(nullptr) (for the ctor call case).
-
-    begin_ = 0;
-    end_ = new_size;
-    capacity_ = new_capacity;
-    entries_ = new_vec;
-  }
-
-  inline T* Get(uint64_t pos) {
-    PERFETTO_DCHECK(pos >= begin_ && pos < end_);
-    PERFETTO_DCHECK((capacity_ & (capacity_ - 1)) == 0);  // Must be a pow2.
-    auto index = static_cast<size_t>(pos & (capacity_ - 1));
-    return &entries_[index];
-  }
-
-  // Underlying storage. It's raw malloc-ed rather than being a unique_ptr<T[]>
-  // to allow having uninitialized entries inside it.
-  T* entries_ = nullptr;
-  size_t capacity_ = 0;  // Number of allocated slots (NOT bytes) in |entries_|.
-
-  // The |begin_| and |end_| indexes are monotonic and never wrap. Modular arith
-  // is used only when dereferencing entries in the vector.
-  uint64_t begin_ = 0;
-  uint64_t end_ = 0;
-
-// Generation is used in debug builds only for checking iterator validity.
-#if PERFETTO_DCHECK_IS_ON()
-  uint32_t generation_ = 0;
-#endif
-};
-
-}  // namespace base
-}  // namespace perfetto
-
-#endif  // INCLUDE_PERFETTO_EXT_BASE_CIRCULAR_QUEUE_H_
-/*
- * Copyright (C) 2017 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef SRC_TRACING_CORE_TRACING_SERVICE_IMPL_H_
-#define SRC_TRACING_CORE_TRACING_SERVICE_IMPL_H_
-
-#include <algorithm>
-#include <functional>
-#include <map>
-#include <memory>
-#include <mutex>
-#include <random>
-#include <set>
-#include <utility>
-#include <vector>
-
-// gen_amalgamated expanded: #include "perfetto/base/logging.h"
-// gen_amalgamated expanded: #include "perfetto/base/status.h"
-// gen_amalgamated expanded: #include "perfetto/base/time.h"
-// gen_amalgamated expanded: #include "perfetto/ext/base/circular_queue.h"
-// gen_amalgamated expanded: #include "perfetto/ext/base/optional.h"
-// gen_amalgamated expanded: #include "perfetto/ext/base/periodic_task.h"
-// gen_amalgamated expanded: #include "perfetto/ext/base/weak_ptr.h"
-// gen_amalgamated expanded: #include "perfetto/ext/tracing/core/basic_types.h"
-// gen_amalgamated expanded: #include "perfetto/ext/tracing/core/commit_data_request.h"
-// gen_amalgamated expanded: #include "perfetto/ext/tracing/core/observable_events.h"
-// gen_amalgamated expanded: #include "perfetto/ext/tracing/core/shared_memory_abi.h"
-// gen_amalgamated expanded: #include "perfetto/ext/tracing/core/trace_stats.h"
-// gen_amalgamated expanded: #include "perfetto/ext/tracing/core/tracing_service.h"
-// gen_amalgamated expanded: #include "perfetto/tracing/core/data_source_config.h"
-// gen_amalgamated expanded: #include "perfetto/tracing/core/data_source_descriptor.h"
-// gen_amalgamated expanded: #include "perfetto/tracing/core/forward_decls.h"
-// gen_amalgamated expanded: #include "perfetto/tracing/core/trace_config.h"
-// gen_amalgamated expanded: #include "src/android_stats/perfetto_atoms.h"
-// gen_amalgamated expanded: #include "src/tracing/core/id_allocator.h"
-
-namespace protozero {
-class MessageFilter;
-}
-
-namespace perfetto {
-
-namespace base {
-class TaskRunner;
-}  // namespace base
-
-class Consumer;
-class Producer;
-class SharedMemory;
-class SharedMemoryArbiterImpl;
-class TraceBuffer;
-class TracePacket;
-
-// The tracing service business logic.
-class TracingServiceImpl : public TracingService {
- private:
-  struct DataSourceInstance;
-
- public:
-  static constexpr size_t kDefaultShmPageSize = 4096ul;
-  static constexpr size_t kDefaultShmSize = 256 * 1024ul;
-  static constexpr size_t kMaxShmSize = 32 * 1024 * 1024ul;
-  static constexpr uint32_t kDataSourceStopTimeoutMs = 5000;
-  static constexpr uint8_t kSyncMarker[] = {0x82, 0x47, 0x7a, 0x76, 0xb2, 0x8d,
-                                            0x42, 0xba, 0x81, 0xdc, 0x33, 0x32,
-                                            0x6d, 0x57, 0xa0, 0x79};
-
-  // The implementation behind the service endpoint exposed to each producer.
-  class ProducerEndpointImpl : public TracingService::ProducerEndpoint {
-   public:
-    ProducerEndpointImpl(ProducerID,
-                         uid_t uid,
-                         TracingServiceImpl*,
-                         base::TaskRunner*,
-                         Producer*,
-                         const std::string& producer_name,
-                         const std::string& sdk_version,
-                         bool in_process,
-                         bool smb_scraping_enabled);
-    ~ProducerEndpointImpl() override;
-
-    // TracingService::ProducerEndpoint implementation.
-    void RegisterDataSource(const DataSourceDescriptor&) override;
-    void UnregisterDataSource(const std::string& name) override;
-    void RegisterTraceWriter(uint32_t writer_id,
-                             uint32_t target_buffer) override;
-    void UnregisterTraceWriter(uint32_t writer_id) override;
-    void CommitData(const CommitDataRequest&, CommitDataCallback) override;
-    void SetupSharedMemory(std::unique_ptr<SharedMemory>,
-                           size_t page_size_bytes,
-                           bool provided_by_producer);
-    std::unique_ptr<TraceWriter> CreateTraceWriter(
-        BufferID,
-        BufferExhaustedPolicy) override;
-    SharedMemoryArbiter* MaybeSharedMemoryArbiter() override;
-    bool IsShmemProvidedByProducer() const override;
-    void NotifyFlushComplete(FlushRequestID) override;
-    void NotifyDataSourceStarted(DataSourceInstanceID) override;
-    void NotifyDataSourceStopped(DataSourceInstanceID) override;
-    SharedMemory* shared_memory() const override;
-    size_t shared_buffer_page_size_kb() const override;
-    void ActivateTriggers(const std::vector<std::string>&) override;
-    void Sync(std::function<void()> callback) override;
-
-    void OnTracingSetup();
-    void SetupDataSource(DataSourceInstanceID, const DataSourceConfig&);
-    void StartDataSource(DataSourceInstanceID, const DataSourceConfig&);
-    void StopDataSource(DataSourceInstanceID);
-    void Flush(FlushRequestID, const std::vector<DataSourceInstanceID>&);
-    void OnFreeBuffers(const std::vector<BufferID>& target_buffers);
-    void ClearIncrementalState(const std::vector<DataSourceInstanceID>&);
-
-    bool is_allowed_target_buffer(BufferID buffer_id) const {
-      return allowed_target_buffers_.count(buffer_id);
-    }
-
-    base::Optional<BufferID> buffer_id_for_writer(WriterID writer_id) const {
-      const auto it = writers_.find(writer_id);
-      if (it != writers_.end())
-        return it->second;
-      return base::nullopt;
-    }
-
-    uid_t uid() const { return uid_; }
-
-   private:
-    friend class TracingServiceImpl;
-    friend class TracingServiceImplTest;
-    friend class TracingIntegrationTest;
-    ProducerEndpointImpl(const ProducerEndpointImpl&) = delete;
-    ProducerEndpointImpl& operator=(const ProducerEndpointImpl&) = delete;
-
-    ProducerID const id_;
-    const uid_t uid_;
-    TracingServiceImpl* const service_;
-    base::TaskRunner* const task_runner_;
-    Producer* producer_;
-    std::unique_ptr<SharedMemory> shared_memory_;
-    size_t shared_buffer_page_size_kb_ = 0;
-    SharedMemoryABI shmem_abi_;
-    size_t shmem_size_hint_bytes_ = 0;
-    size_t shmem_page_size_hint_bytes_ = 0;
-    bool is_shmem_provided_by_producer_ = false;
-    const std::string name_;
-    std::string sdk_version_;
-    bool in_process_;
-    bool smb_scraping_enabled_;
-
-    // Set of the global target_buffer IDs that the producer is configured to
-    // write into in any active tracing session.
-    std::set<BufferID> allowed_target_buffers_;
-
-    // Maps registered TraceWriter IDs to their target buffers as registered by
-    // the producer. Note that producers aren't required to register their
-    // writers, so we may see commits of chunks with WriterIDs that aren't
-    // contained in this map. However, if a producer does register a writer, the
-    // service will prevent the writer from writing into any other buffer than
-    // the one associated with it here. The BufferIDs stored in this map are
-    // untrusted, so need to be verified against |allowed_target_buffers_|
-    // before use.
-    std::map<WriterID, BufferID> writers_;
-
-    // This is used only in in-process configurations.
-    // SharedMemoryArbiterImpl methods themselves are thread-safe.
-    std::unique_ptr<SharedMemoryArbiterImpl> inproc_shmem_arbiter_;
-
-    PERFETTO_THREAD_CHECKER(thread_checker_)
-    base::WeakPtrFactory<ProducerEndpointImpl> weak_ptr_factory_;  // Keep last.
-  };
-
-  // The implementation behind the service endpoint exposed to each consumer.
-  class ConsumerEndpointImpl : public TracingService::ConsumerEndpoint {
-   public:
-    ConsumerEndpointImpl(TracingServiceImpl*,
-                         base::TaskRunner*,
-                         Consumer*,
-                         uid_t uid);
-    ~ConsumerEndpointImpl() override;
-
-    void NotifyOnTracingDisabled(const std::string& error);
-
-    // TracingService::ConsumerEndpoint implementation.
-    void EnableTracing(const TraceConfig&, base::ScopedFile) override;
-    void ChangeTraceConfig(const TraceConfig& cfg) override;
-    void StartTracing() override;
-    void DisableTracing() override;
-    void ReadBuffers() override;
-    void FreeBuffers() override;
-    void Flush(uint32_t timeout_ms, FlushCallback) override;
-    void Detach(const std::string& key) override;
-    void Attach(const std::string& key) override;
-    void GetTraceStats() override;
-    void ObserveEvents(uint32_t enabled_event_types) override;
-    void QueryServiceState(QueryServiceStateCallback) override;
-    void QueryCapabilities(QueryCapabilitiesCallback) override;
-    void SaveTraceForBugreport(SaveTraceForBugreportCallback) override;
-
-    // Will queue a task to notify the consumer about the state change.
-    void OnDataSourceInstanceStateChange(const ProducerEndpointImpl&,
-                                         const DataSourceInstance&);
-    void OnAllDataSourcesStarted();
-
-   private:
-    friend class TracingServiceImpl;
-    ConsumerEndpointImpl(const ConsumerEndpointImpl&) = delete;
-    ConsumerEndpointImpl& operator=(const ConsumerEndpointImpl&) = delete;
-
-    // Returns a pointer to an ObservableEvents object that the caller can fill
-    // and schedules a task to send the ObservableEvents to the consumer.
-    ObservableEvents* AddObservableEvents();
-
-    base::TaskRunner* const task_runner_;
-    TracingServiceImpl* const service_;
-    Consumer* const consumer_;
-    uid_t const uid_;
-    TracingSessionID tracing_session_id_ = 0;
-
-    // Whether the consumer is interested in DataSourceInstance state change
-    // events.
-    uint32_t observable_events_mask_ = 0;
-
-    // ObservableEvents that will be sent to the consumer. If set, a task to
-    // flush the events to the consumer has been queued.
-    std::unique_ptr<ObservableEvents> observable_events_;
-
-    PERFETTO_THREAD_CHECKER(thread_checker_)
-    base::WeakPtrFactory<ConsumerEndpointImpl> weak_ptr_factory_;  // Keep last.
-  };
-
-  explicit TracingServiceImpl(std::unique_ptr<SharedMemory::Factory>,
-                              base::TaskRunner*);
-  ~TracingServiceImpl() override;
-
-  // Called by ProducerEndpointImpl.
-  void DisconnectProducer(ProducerID);
-  void RegisterDataSource(ProducerID, const DataSourceDescriptor&);
-  void UnregisterDataSource(ProducerID, const std::string& name);
-  void CopyProducerPageIntoLogBuffer(ProducerID,
-                                     uid_t,
-                                     WriterID,
-                                     ChunkID,
-                                     BufferID,
-                                     uint16_t num_fragments,
-                                     uint8_t chunk_flags,
-                                     bool chunk_complete,
-                                     const uint8_t* src,
-                                     size_t size);
-  void ApplyChunkPatches(ProducerID,
-                         const std::vector<CommitDataRequest::ChunkToPatch>&);
-  void NotifyFlushDoneForProducer(ProducerID, FlushRequestID);
-  void NotifyDataSourceStarted(ProducerID, const DataSourceInstanceID);
-  void NotifyDataSourceStopped(ProducerID, const DataSourceInstanceID);
-  void ActivateTriggers(ProducerID, const std::vector<std::string>& triggers);
-
-  // Called by ConsumerEndpointImpl.
-  bool DetachConsumer(ConsumerEndpointImpl*, const std::string& key);
-  bool AttachConsumer(ConsumerEndpointImpl*, const std::string& key);
-  void DisconnectConsumer(ConsumerEndpointImpl*);
-  base::Status EnableTracing(ConsumerEndpointImpl*,
-                             const TraceConfig&,
-                             base::ScopedFile);
-  void ChangeTraceConfig(ConsumerEndpointImpl*, const TraceConfig&);
-
-  base::Status StartTracing(TracingSessionID);
-  void DisableTracing(TracingSessionID, bool disable_immediately = false);
-  void Flush(TracingSessionID tsid,
-             uint32_t timeout_ms,
-             ConsumerEndpoint::FlushCallback);
-  void FlushAndDisableTracing(TracingSessionID);
-  bool ReadBuffers(TracingSessionID, ConsumerEndpointImpl*);
-  void FreeBuffers(TracingSessionID);
-
-  // Service implementation.
-  std::unique_ptr<TracingService::ProducerEndpoint> ConnectProducer(
-      Producer*,
-      uid_t uid,
-      const std::string& producer_name,
-      size_t shared_memory_size_hint_bytes = 0,
-      bool in_process = false,
-      ProducerSMBScrapingMode smb_scraping_mode =
-          ProducerSMBScrapingMode::kDefault,
-      size_t shared_memory_page_size_hint_bytes = 0,
-      std::unique_ptr<SharedMemory> shm = nullptr,
-      const std::string& sdk_version = {}) override;
-
-  std::unique_ptr<TracingService::ConsumerEndpoint> ConnectConsumer(
-      Consumer*,
-      uid_t) override;
-
-  // Set whether SMB scraping should be enabled by default or not. Producers can
-  // override this setting for their own SMBs.
-  void SetSMBScrapingEnabled(bool enabled) override {
-    smb_scraping_enabled_ = enabled;
-  }
-
-  // Exposed mainly for testing.
-  size_t num_producers() const { return producers_.size(); }
-  ProducerEndpointImpl* GetProducer(ProducerID) const;
-
- private:
-  friend class TracingServiceImplTest;
-  friend class TracingIntegrationTest;
-
-  static constexpr int64_t kOneDayInNs = 24ll * 60 * 60 * 1000 * 1000 * 1000;
-
-  struct TriggerHistory {
-    int64_t timestamp_ns;
-    uint64_t name_hash;
-
-    bool operator<(const TriggerHistory& other) const {
-      return timestamp_ns < other.timestamp_ns;
-    }
-  };
-
-  struct RegisteredDataSource {
-    ProducerID producer_id;
-    DataSourceDescriptor descriptor;
-  };
-
-  // Represents an active data source for a tracing session.
-  struct DataSourceInstance {
-    DataSourceInstance(DataSourceInstanceID id,
-                       const DataSourceConfig& cfg,
-                       const std::string& ds_name,
-                       bool notify_on_start,
-                       bool notify_on_stop,
-                       bool handles_incremental_state_invalidation)
-        : instance_id(id),
-          config(cfg),
-          data_source_name(ds_name),
-          will_notify_on_start(notify_on_start),
-          will_notify_on_stop(notify_on_stop),
-          handles_incremental_state_clear(
-              handles_incremental_state_invalidation) {}
-    DataSourceInstance(const DataSourceInstance&) = delete;
-    DataSourceInstance& operator=(const DataSourceInstance&) = delete;
-
-    DataSourceInstanceID instance_id;
-    DataSourceConfig config;
-    std::string data_source_name;
-    bool will_notify_on_start;
-    bool will_notify_on_stop;
-    bool handles_incremental_state_clear;
-
-    enum DataSourceInstanceState {
-      CONFIGURED,
-      STARTING,
-      STARTED,
-      STOPPING,
-      STOPPED
-    };
-    DataSourceInstanceState state = CONFIGURED;
-  };
-
-  struct PendingFlush {
-    std::set<ProducerID> producers;
-    ConsumerEndpoint::FlushCallback callback;
-    explicit PendingFlush(decltype(callback) cb) : callback(std::move(cb)) {}
-  };
-
-  // Holds the state of a tracing session. A tracing session is uniquely bound
-  // a specific Consumer. Each Consumer can own one or more sessions.
-  struct TracingSession {
-    enum State {
-      DISABLED = 0,
-      CONFIGURED,
-      STARTED,
-      DISABLING_WAITING_STOP_ACKS
-    };
-
-    TracingSession(TracingSessionID,
-                   ConsumerEndpointImpl*,
-                   const TraceConfig&,
-                   base::TaskRunner*);
-    TracingSession(TracingSession&&) = delete;
-    TracingSession& operator=(TracingSession&&) = delete;
-
-    size_t num_buffers() const { return buffers_index.size(); }
-
-    uint32_t delay_to_next_write_period_ms() const {
-      PERFETTO_DCHECK(write_period_ms > 0);
-      return write_period_ms -
-             static_cast<uint32_t>(base::GetWallTimeMs().count() %
-                                   write_period_ms);
-    }
-
-    uint32_t flush_timeout_ms() {
-      uint32_t timeout_ms = config.flush_timeout_ms();
-      return timeout_ms ? timeout_ms : kDefaultFlushTimeoutMs;
-    }
-
-    uint32_t data_source_stop_timeout_ms() {
-      uint32_t timeout_ms = config.data_source_stop_timeout_ms();
-      return timeout_ms ? timeout_ms : kDataSourceStopTimeoutMs;
-    }
-
-    PacketSequenceID GetPacketSequenceID(ProducerID producer_id,
-                                         WriterID writer_id) {
-      auto key = std::make_pair(producer_id, writer_id);
-      auto it = packet_sequence_ids.find(key);
-      if (it != packet_sequence_ids.end())
-        return it->second;
-      // We shouldn't run out of sequence IDs (producer ID is 16 bit, writer IDs
-      // are limited to 1024).
-      static_assert(kMaxPacketSequenceID > kMaxProducerID * kMaxWriterID,
-                    "PacketSequenceID value space doesn't cover service "
-                    "sequence ID and all producer/writer ID combinations!");
-      PERFETTO_DCHECK(last_packet_sequence_id < kMaxPacketSequenceID);
-      PacketSequenceID sequence_id = ++last_packet_sequence_id;
-      packet_sequence_ids[key] = sequence_id;
-      return sequence_id;
-    }
-
-    DataSourceInstance* GetDataSourceInstance(
-        ProducerID producer_id,
-        DataSourceInstanceID instance_id) {
-      for (auto& inst_kv : data_source_instances) {
-        if (inst_kv.first != producer_id ||
-            inst_kv.second.instance_id != instance_id) {
-          continue;
-        }
-        return &inst_kv.second;
-      }
-      return nullptr;
-    }
-
-    bool AllDataSourceInstancesStarted() {
-      return std::all_of(
-          data_source_instances.begin(), data_source_instances.end(),
-          [](decltype(data_source_instances)::const_reference x) {
-            return x.second.state == DataSourceInstance::STARTED;
-          });
-    }
-
-    bool AllDataSourceInstancesStopped() {
-      return std::all_of(
-          data_source_instances.begin(), data_source_instances.end(),
-          [](decltype(data_source_instances)::const_reference x) {
-            return x.second.state == DataSourceInstance::STOPPED;
-          });
-    }
-
-    const TracingSessionID id;
-
-    // The consumer that started the session.
-    // Can be nullptr if the consumer detached from the session.
-    ConsumerEndpointImpl* consumer_maybe_null;
-
-    // Unix uid of the consumer. This is valid even after the consumer detaches
-    // and does not change for the entire duration of the session. It is used to
-    // prevent that a consumer re-attaches to a session from a different uid.
-    uid_t const consumer_uid;
-
-    // The list of triggers this session received while alive and the time they
-    // were received at. This is used to insert 'fake' packets back to the
-    // consumer so they can tell when some event happened. The order matches the
-    // order they were received.
-    struct TriggerInfo {
-      uint64_t boot_time_ns;
-      std::string trigger_name;
-      std::string producer_name;
-      uid_t producer_uid;
-    };
-    std::vector<TriggerInfo> received_triggers;
-
-    // The trace config provided by the Consumer when calling
-    // EnableTracing(), plus any updates performed by ChangeTraceConfig.
-    TraceConfig config;
-
-    // List of data source instances that have been enabled on the various
-    // producers for this tracing session.
-    // TODO(rsavitski): at the time of writing, the map structure is unused
-    // (even when the calling code has a key). This is also an opportunity to
-    // consider an alternative data type, e.g. a map of vectors.
-    std::multimap<ProducerID, DataSourceInstance> data_source_instances;
-
-    // For each Flush(N) request, keeps track of the set of producers for which
-    // we are still awaiting a NotifyFlushComplete(N) ack.
-    std::map<FlushRequestID, PendingFlush> pending_flushes;
-
-    // Maps a per-trace-session buffer index into the corresponding global
-    // BufferID (shared namespace amongst all consumers). This vector has as
-    // many entries as |config.buffers_size()|.
-    std::vector<BufferID> buffers_index;
-
-    std::map<std::pair<ProducerID, WriterID>, PacketSequenceID>
-        packet_sequence_ids;
-    PacketSequenceID last_packet_sequence_id = kServicePacketSequenceID;
-
-    // Whether we should emit the trace stats next time we reach EOF while
-    // performing ReadBuffers.
-    bool should_emit_stats = false;
-
-    // Whether we should emit the sync marker the next time ReadBuffers() is
-    // called.
-    bool should_emit_sync_marker = false;
-
-    // Whether we mirrored the trace config back to the trace output yet.
-    bool did_emit_config = false;
-
-    // Whether we put the system info into the trace output yet.
-    bool did_emit_system_info = false;
-
-    // The number of received triggers we've emitted into the trace output.
-    size_t num_triggers_emitted_into_trace = 0;
-
-    // Packets that failed validation of the TrustedPacket.
-    uint64_t invalid_packets = 0;
-
-    // Set to true on the first call to MaybeNotifyAllDataSourcesStarted().
-    bool did_notify_all_data_source_started = false;
-
-    // Stores all lifecycle events of a particular type (i.e. associated with a
-    // single field id in the TracingServiceEvent proto).
-    struct LifecycleEvent {
-      LifecycleEvent(uint32_t f_id, uint32_t m_size = 1)
-          : field_id(f_id), max_size(m_size), timestamps(m_size) {}
-
-      // The field id of the event in the TracingServiceEvent proto.
-      uint32_t field_id;
-
-      // Stores the max size of |timestamps|. Set to 1 by default (in
-      // the constructor) but can be overriden in TraceSession constructor
-      // if a larger size is required.
-      uint32_t max_size;
-
-      // Stores the timestamps emitted for each event type (in nanoseconds).
-      // Emitted into the trace and cleared when the consumer next calls
-      // ReadBuffers.
-      base::CircularQueue<int64_t> timestamps;
-    };
-    std::vector<LifecycleEvent> lifecycle_events;
-
-    using ClockSnapshotData =
-        std::vector<std::pair<uint32_t /*clock_id*/, uint64_t /*ts*/>>;
-
-    // Initial clock snapshot, captured at trace start time (when state goes to
-    // TracingSession::STARTED). Emitted into the trace when the consumer first
-    // calls ReadBuffers().
-    ClockSnapshotData initial_clock_snapshot;
-
-    // Stores clock snapshots to emit into the trace as a ring buffer. This
-    // buffer is populated both periodically and when lifecycle events happen
-    // but only when significant clock drift is detected. Emitted into the trace
-    // and cleared when the consumer next calls ReadBuffers().
-    base::CircularQueue<ClockSnapshotData> clock_snapshot_ring_buffer;
-
-    State state = DISABLED;
-
-    // If the consumer detached the session, this variable defines the key used
-    // for identifying the session later when reattaching.
-    std::string detach_key;
-
-    // This is set when the Consumer calls sets |write_into_file| == true in the
-    // TraceConfig. In this case this represents the file we should stream the
-    // trace packets into, rather than returning it to the consumer via
-    // OnTraceData().
-    base::ScopedFile write_into_file;
-    uint32_t write_period_ms = 0;
-    uint64_t max_file_size_bytes = 0;
-    uint64_t bytes_written_into_file = 0;
-
-    // Set when using SaveTraceForBugreport(). This callback will be called
-    // when the tracing session ends and the data has been saved into the file.
-    std::function<void()> on_disable_callback_for_bugreport;
-    bool seized_for_bugreport = false;
-
-    // Periodic task for snapshotting service events (e.g. clocks, sync markers
-    // etc)
-    base::PeriodicTask snapshot_periodic_task;
-
-    // When non-NULL the packets should be post-processed using the filter.
-    std::unique_ptr<protozero::MessageFilter> trace_filter;
-    uint64_t filter_input_packets = 0;
-    uint64_t filter_input_bytes = 0;
-    uint64_t filter_output_bytes = 0;
-    uint64_t filter_errors = 0;
-  };
-
-  TracingServiceImpl(const TracingServiceImpl&) = delete;
-  TracingServiceImpl& operator=(const TracingServiceImpl&) = delete;
-
-  DataSourceInstance* SetupDataSource(const TraceConfig::DataSource&,
-                                      const TraceConfig::ProducerConfig&,
-                                      const RegisteredDataSource&,
-                                      TracingSession*);
-
-  // Returns the next available ProducerID that is not in |producers_|.
-  ProducerID GetNextProducerID();
-
-  // Returns a pointer to the |tracing_sessions_| entry or nullptr if the
-  // session doesn't exists.
-  TracingSession* GetTracingSession(TracingSessionID);
-
-  // Returns a pointer to the |tracing_sessions_| entry, matching the given
-  // uid and detach key, or nullptr if no such session exists.
-  TracingSession* GetDetachedSession(uid_t, const std::string& key);
-
-  // Update the memory guard rail by using the latest information from the
-  // shared memory and trace buffers.
-  void UpdateMemoryGuardrail();
-
-  void StartDataSourceInstance(ProducerEndpointImpl*,
-                               TracingSession*,
-                               DataSourceInstance*);
-  void StopDataSourceInstance(ProducerEndpointImpl*,
-                              TracingSession*,
-                              DataSourceInstance*,
-                              bool disable_immediately);
-  void PeriodicSnapshotTask(TracingSessionID);
-  void MaybeSnapshotClocksIntoRingBuffer(TracingSession*);
-  bool SnapshotClocks(TracingSession::ClockSnapshotData*);
-  void SnapshotLifecyleEvent(TracingSession*,
-                             uint32_t field_id,
-                             bool snapshot_clocks);
-  void EmitClockSnapshot(TracingSession*,
-                         TracingSession::ClockSnapshotData,
-                         std::vector<TracePacket>*);
-  void EmitSyncMarker(std::vector<TracePacket>*);
-  void EmitStats(TracingSession*, std::vector<TracePacket>*);
-  TraceStats GetTraceStats(TracingSession*);
-  void EmitLifecycleEvents(TracingSession*, std::vector<TracePacket>*);
-  void EmitSeizedForBugreportLifecycleEvent(std::vector<TracePacket>*);
-  void MaybeEmitTraceConfig(TracingSession*, std::vector<TracePacket>*);
-  void MaybeEmitSystemInfo(TracingSession*, std::vector<TracePacket>*);
-  void MaybeEmitReceivedTriggers(TracingSession*, std::vector<TracePacket>*);
-  void MaybeNotifyAllDataSourcesStarted(TracingSession*);
-  bool MaybeSaveTraceForBugreport(std::function<void()> callback);
-  void OnFlushTimeout(TracingSessionID, FlushRequestID);
-  void OnDisableTracingTimeout(TracingSessionID);
-  void DisableTracingNotifyConsumerAndFlushFile(TracingSession*);
-  void PeriodicFlushTask(TracingSessionID, bool post_next_only);
-  void CompleteFlush(TracingSessionID tsid,
-                     ConsumerEndpoint::FlushCallback callback,
-                     bool success);
-  void ScrapeSharedMemoryBuffers(TracingSession*, ProducerEndpointImpl*);
-  void PeriodicClearIncrementalStateTask(TracingSessionID, bool post_next_only);
-  TraceBuffer* GetBufferByID(BufferID);
-  void OnStartTriggersTimeout(TracingSessionID tsid);
-  void MaybeLogUploadEvent(const TraceConfig&,
-                           PerfettoStatsdAtom atom,
-                           const std::string& trigger_name = "");
-  void MaybeLogTriggerEvent(const TraceConfig&,
-                            PerfettoTriggerAtom atom,
-                            const std::string& trigger_name);
-  size_t PurgeExpiredAndCountTriggerInWindow(int64_t now_ns,
-                                             uint64_t trigger_name_hash);
-
-  base::TaskRunner* const task_runner_;
-  std::unique_ptr<SharedMemory::Factory> shm_factory_;
-  ProducerID last_producer_id_ = 0;
-  DataSourceInstanceID last_data_source_instance_id_ = 0;
-  TracingSessionID last_tracing_session_id_ = 0;
-  FlushRequestID last_flush_request_id_ = 0;
-  uid_t uid_ = 0;
-
-  // Buffer IDs are global across all consumers (because a Producer can produce
-  // data for more than one trace session, hence more than one consumer).
-  IdAllocator<BufferID> buffer_ids_;
-
-  std::multimap<std::string /*name*/, RegisteredDataSource> data_sources_;
-  std::map<ProducerID, ProducerEndpointImpl*> producers_;
-  std::set<ConsumerEndpointImpl*> consumers_;
-  std::map<TracingSessionID, TracingSession> tracing_sessions_;
-  std::map<BufferID, std::unique_ptr<TraceBuffer>> buffers_;
-  std::map<std::string, int64_t> session_to_last_trace_s_;
-
-  // Contains timestamps of triggers.
-  // The queue is sorted by timestamp and invocations older than
-  // |trigger_window_ns_| are purged when a trigger happens.
-  base::CircularQueue<TriggerHistory> trigger_history_;
-
-  bool smb_scraping_enabled_ = false;
-  bool lockdown_mode_ = false;
-  uint32_t min_write_period_ms_ = 100;       // Overridable for testing.
-  int64_t trigger_window_ns_ = kOneDayInNs;  // Overridable for testing.
-
-  std::minstd_rand trigger_probability_rand_;
-  std::uniform_real_distribution<> trigger_probability_dist_;
-  double trigger_rnd_override_for_testing_ = 0;  // Overridable for testing.
-
-  uint8_t sync_marker_packet_[32];  // Lazily initialized.
-  size_t sync_marker_packet_size_ = 0;
-
-  // Stats.
-  uint64_t chunks_discarded_ = 0;
-  uint64_t patches_discarded_ = 0;
-
-  PERFETTO_THREAD_CHECKER(thread_checker_)
-
-  base::WeakPtrFactory<TracingServiceImpl>
-      weak_ptr_factory_;  // Keep at the end.
-};
-
-}  // namespace perfetto
-
-#endif  // SRC_TRACING_CORE_TRACING_SERVICE_IMPL_H_
-// gen_amalgamated begin header: include/perfetto/tracing/core/tracing_service_capabilities.h
-/*
- * Copyright (C) 2020 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef INCLUDE_PERFETTO_TRACING_CORE_TRACING_SERVICE_CAPABILITIES_H_
-#define INCLUDE_PERFETTO_TRACING_CORE_TRACING_SERVICE_CAPABILITIES_H_
-
-// Creates the aliases in the ::perfetto namespace, doing things like:
-// using ::perfetto::Foo = ::perfetto::protos::gen::Foo.
-// See comments in forward_decls.h for the historical reasons of this
-// indirection layer.
-// gen_amalgamated expanded: #include "perfetto/tracing/core/forward_decls.h"
-
-// gen_amalgamated expanded: #include "protos/perfetto/common/tracing_service_capabilities.gen.h"
-
-#endif  // INCLUDE_PERFETTO_TRACING_CORE_TRACING_SERVICE_CAPABILITIES_H_
-// gen_amalgamated begin header: gen/protos/perfetto/common/trace_stats.pbzero.h
-// Autogenerated by the ProtoZero compiler plugin. DO NOT EDIT.
-
-#ifndef PERFETTO_PROTOS_PROTOS_PERFETTO_COMMON_TRACE_STATS_PROTO_H_
-#define PERFETTO_PROTOS_PROTOS_PERFETTO_COMMON_TRACE_STATS_PROTO_H_
-
-#include <stddef.h>
-#include <stdint.h>
-
-// gen_amalgamated expanded: #include "perfetto/protozero/field_writer.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/message.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/packed_repeated_fields.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/proto_decoder.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/proto_utils.h"
-
-namespace perfetto {
-namespace protos {
-namespace pbzero {
-
-class TraceStats_BufferStats;
-class TraceStats_FilterStats;
-
-class TraceStats_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/11, /*HAS_NONPACKED_REPEATED_FIELDS=*/true> {
- public:
-  TraceStats_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit TraceStats_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit TraceStats_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_buffer_stats() const { return at<1>().valid(); }
-  ::protozero::RepeatedFieldIterator<::protozero::ConstBytes> buffer_stats() const { return GetRepeated<::protozero::ConstBytes>(1); }
-  bool has_producers_connected() const { return at<2>().valid(); }
-  uint32_t producers_connected() const { return at<2>().as_uint32(); }
-  bool has_producers_seen() const { return at<3>().valid(); }
-  uint64_t producers_seen() const { return at<3>().as_uint64(); }
-  bool has_data_sources_registered() const { return at<4>().valid(); }
-  uint32_t data_sources_registered() const { return at<4>().as_uint32(); }
-  bool has_data_sources_seen() const { return at<5>().valid(); }
-  uint64_t data_sources_seen() const { return at<5>().as_uint64(); }
-  bool has_tracing_sessions() const { return at<6>().valid(); }
-  uint32_t tracing_sessions() const { return at<6>().as_uint32(); }
-  bool has_total_buffers() const { return at<7>().valid(); }
-  uint32_t total_buffers() const { return at<7>().as_uint32(); }
-  bool has_chunks_discarded() const { return at<8>().valid(); }
-  uint64_t chunks_discarded() const { return at<8>().as_uint64(); }
-  bool has_patches_discarded() const { return at<9>().valid(); }
-  uint64_t patches_discarded() const { return at<9>().as_uint64(); }
-  bool has_invalid_packets() const { return at<10>().valid(); }
-  uint64_t invalid_packets() const { return at<10>().as_uint64(); }
-  bool has_filter_stats() const { return at<11>().valid(); }
-  ::protozero::ConstBytes filter_stats() const { return at<11>().as_bytes(); }
-};
-
-class TraceStats : public ::protozero::Message {
- public:
-  using Decoder = TraceStats_Decoder;
-  enum : int32_t {
-    kBufferStatsFieldNumber = 1,
-    kProducersConnectedFieldNumber = 2,
-    kProducersSeenFieldNumber = 3,
-    kDataSourcesRegisteredFieldNumber = 4,
-    kDataSourcesSeenFieldNumber = 5,
-    kTracingSessionsFieldNumber = 6,
-    kTotalBuffersFieldNumber = 7,
-    kChunksDiscardedFieldNumber = 8,
-    kPatchesDiscardedFieldNumber = 9,
-    kInvalidPacketsFieldNumber = 10,
-    kFilterStatsFieldNumber = 11,
-  };
-  using BufferStats = ::perfetto::protos::pbzero::TraceStats_BufferStats;
-  using FilterStats = ::perfetto::protos::pbzero::TraceStats_FilterStats;
-
-  using FieldMetadata_BufferStats =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kRepeatedNotPacked,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      TraceStats_BufferStats,
-      TraceStats>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_BufferStats kBufferStats() { return {}; }
-  template <typename T = TraceStats_BufferStats> T* add_buffer_stats() {
-    return BeginNestedMessage<T>(1);
-  }
-
-
-  using FieldMetadata_ProducersConnected =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      TraceStats>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_ProducersConnected kProducersConnected() { return {}; }
-  void set_producers_connected(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_ProducersConnected::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_ProducersSeen =
-    ::protozero::proto_utils::FieldMetadata<
-      3,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      TraceStats>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_ProducersSeen kProducersSeen() { return {}; }
-  void set_producers_seen(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_ProducersSeen::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_DataSourcesRegistered =
-    ::protozero::proto_utils::FieldMetadata<
-      4,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      TraceStats>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_DataSourcesRegistered kDataSourcesRegistered() { return {}; }
-  void set_data_sources_registered(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_DataSourcesRegistered::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_DataSourcesSeen =
-    ::protozero::proto_utils::FieldMetadata<
-      5,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      TraceStats>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_DataSourcesSeen kDataSourcesSeen() { return {}; }
-  void set_data_sources_seen(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_DataSourcesSeen::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_TracingSessions =
-    ::protozero::proto_utils::FieldMetadata<
-      6,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      TraceStats>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_TracingSessions kTracingSessions() { return {}; }
-  void set_tracing_sessions(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_TracingSessions::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_TotalBuffers =
-    ::protozero::proto_utils::FieldMetadata<
-      7,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      TraceStats>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_TotalBuffers kTotalBuffers() { return {}; }
-  void set_total_buffers(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_TotalBuffers::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_ChunksDiscarded =
-    ::protozero::proto_utils::FieldMetadata<
-      8,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      TraceStats>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_ChunksDiscarded kChunksDiscarded() { return {}; }
-  void set_chunks_discarded(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_ChunksDiscarded::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_PatchesDiscarded =
-    ::protozero::proto_utils::FieldMetadata<
-      9,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      TraceStats>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_PatchesDiscarded kPatchesDiscarded() { return {}; }
-  void set_patches_discarded(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_PatchesDiscarded::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_InvalidPackets =
-    ::protozero::proto_utils::FieldMetadata<
-      10,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      TraceStats>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_InvalidPackets kInvalidPackets() { return {}; }
-  void set_invalid_packets(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_InvalidPackets::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_FilterStats =
-    ::protozero::proto_utils::FieldMetadata<
-      11,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      TraceStats_FilterStats,
-      TraceStats>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_FilterStats kFilterStats() { return {}; }
-  template <typename T = TraceStats_FilterStats> T* set_filter_stats() {
-    return BeginNestedMessage<T>(11);
-  }
-
-};
-
-class TraceStats_FilterStats_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/4, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  TraceStats_FilterStats_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit TraceStats_FilterStats_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit TraceStats_FilterStats_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_input_packets() const { return at<1>().valid(); }
-  uint64_t input_packets() const { return at<1>().as_uint64(); }
-  bool has_input_bytes() const { return at<2>().valid(); }
-  uint64_t input_bytes() const { return at<2>().as_uint64(); }
-  bool has_output_bytes() const { return at<3>().valid(); }
-  uint64_t output_bytes() const { return at<3>().as_uint64(); }
-  bool has_errors() const { return at<4>().valid(); }
-  uint64_t errors() const { return at<4>().as_uint64(); }
-};
-
-class TraceStats_FilterStats : public ::protozero::Message {
- public:
-  using Decoder = TraceStats_FilterStats_Decoder;
-  enum : int32_t {
-    kInputPacketsFieldNumber = 1,
-    kInputBytesFieldNumber = 2,
-    kOutputBytesFieldNumber = 3,
-    kErrorsFieldNumber = 4,
-  };
-
-  using FieldMetadata_InputPackets =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      TraceStats_FilterStats>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_InputPackets kInputPackets() { return {}; }
-  void set_input_packets(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_InputPackets::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_InputBytes =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      TraceStats_FilterStats>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_InputBytes kInputBytes() { return {}; }
-  void set_input_bytes(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_InputBytes::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_OutputBytes =
-    ::protozero::proto_utils::FieldMetadata<
-      3,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      TraceStats_FilterStats>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_OutputBytes kOutputBytes() { return {}; }
-  void set_output_bytes(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_OutputBytes::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Errors =
-    ::protozero::proto_utils::FieldMetadata<
-      4,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      TraceStats_FilterStats>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Errors kErrors() { return {}; }
-  void set_errors(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Errors::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-};
-
-class TraceStats_BufferStats_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/19, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  TraceStats_BufferStats_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit TraceStats_BufferStats_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit TraceStats_BufferStats_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_buffer_size() const { return at<12>().valid(); }
-  uint64_t buffer_size() const { return at<12>().as_uint64(); }
-  bool has_bytes_written() const { return at<1>().valid(); }
-  uint64_t bytes_written() const { return at<1>().as_uint64(); }
-  bool has_bytes_overwritten() const { return at<13>().valid(); }
-  uint64_t bytes_overwritten() const { return at<13>().as_uint64(); }
-  bool has_bytes_read() const { return at<14>().valid(); }
-  uint64_t bytes_read() const { return at<14>().as_uint64(); }
-  bool has_padding_bytes_written() const { return at<15>().valid(); }
-  uint64_t padding_bytes_written() const { return at<15>().as_uint64(); }
-  bool has_padding_bytes_cleared() const { return at<16>().valid(); }
-  uint64_t padding_bytes_cleared() const { return at<16>().as_uint64(); }
-  bool has_chunks_written() const { return at<2>().valid(); }
-  uint64_t chunks_written() const { return at<2>().as_uint64(); }
-  bool has_chunks_rewritten() const { return at<10>().valid(); }
-  uint64_t chunks_rewritten() const { return at<10>().as_uint64(); }
-  bool has_chunks_overwritten() const { return at<3>().valid(); }
-  uint64_t chunks_overwritten() const { return at<3>().as_uint64(); }
-  bool has_chunks_discarded() const { return at<18>().valid(); }
-  uint64_t chunks_discarded() const { return at<18>().as_uint64(); }
-  bool has_chunks_read() const { return at<17>().valid(); }
-  uint64_t chunks_read() const { return at<17>().as_uint64(); }
-  bool has_chunks_committed_out_of_order() const { return at<11>().valid(); }
-  uint64_t chunks_committed_out_of_order() const { return at<11>().as_uint64(); }
-  bool has_write_wrap_count() const { return at<4>().valid(); }
-  uint64_t write_wrap_count() const { return at<4>().as_uint64(); }
-  bool has_patches_succeeded() const { return at<5>().valid(); }
-  uint64_t patches_succeeded() const { return at<5>().as_uint64(); }
-  bool has_patches_failed() const { return at<6>().valid(); }
-  uint64_t patches_failed() const { return at<6>().as_uint64(); }
-  bool has_readaheads_succeeded() const { return at<7>().valid(); }
-  uint64_t readaheads_succeeded() const { return at<7>().as_uint64(); }
-  bool has_readaheads_failed() const { return at<8>().valid(); }
-  uint64_t readaheads_failed() const { return at<8>().as_uint64(); }
-  bool has_abi_violations() const { return at<9>().valid(); }
-  uint64_t abi_violations() const { return at<9>().as_uint64(); }
-  bool has_trace_writer_packet_loss() const { return at<19>().valid(); }
-  uint64_t trace_writer_packet_loss() const { return at<19>().as_uint64(); }
-};
-
-class TraceStats_BufferStats : public ::protozero::Message {
- public:
-  using Decoder = TraceStats_BufferStats_Decoder;
-  enum : int32_t {
-    kBufferSizeFieldNumber = 12,
-    kBytesWrittenFieldNumber = 1,
-    kBytesOverwrittenFieldNumber = 13,
-    kBytesReadFieldNumber = 14,
-    kPaddingBytesWrittenFieldNumber = 15,
-    kPaddingBytesClearedFieldNumber = 16,
-    kChunksWrittenFieldNumber = 2,
-    kChunksRewrittenFieldNumber = 10,
-    kChunksOverwrittenFieldNumber = 3,
-    kChunksDiscardedFieldNumber = 18,
-    kChunksReadFieldNumber = 17,
-    kChunksCommittedOutOfOrderFieldNumber = 11,
-    kWriteWrapCountFieldNumber = 4,
-    kPatchesSucceededFieldNumber = 5,
-    kPatchesFailedFieldNumber = 6,
-    kReadaheadsSucceededFieldNumber = 7,
-    kReadaheadsFailedFieldNumber = 8,
-    kAbiViolationsFieldNumber = 9,
-    kTraceWriterPacketLossFieldNumber = 19,
-  };
-
-  using FieldMetadata_BufferSize =
-    ::protozero::proto_utils::FieldMetadata<
-      12,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      TraceStats_BufferStats>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_BufferSize kBufferSize() { return {}; }
-  void set_buffer_size(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_BufferSize::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_BytesWritten =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      TraceStats_BufferStats>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_BytesWritten kBytesWritten() { return {}; }
-  void set_bytes_written(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_BytesWritten::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_BytesOverwritten =
-    ::protozero::proto_utils::FieldMetadata<
-      13,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      TraceStats_BufferStats>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_BytesOverwritten kBytesOverwritten() { return {}; }
-  void set_bytes_overwritten(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_BytesOverwritten::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_BytesRead =
-    ::protozero::proto_utils::FieldMetadata<
-      14,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      TraceStats_BufferStats>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_BytesRead kBytesRead() { return {}; }
-  void set_bytes_read(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_BytesRead::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_PaddingBytesWritten =
-    ::protozero::proto_utils::FieldMetadata<
-      15,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      TraceStats_BufferStats>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_PaddingBytesWritten kPaddingBytesWritten() { return {}; }
-  void set_padding_bytes_written(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_PaddingBytesWritten::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_PaddingBytesCleared =
-    ::protozero::proto_utils::FieldMetadata<
-      16,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      TraceStats_BufferStats>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_PaddingBytesCleared kPaddingBytesCleared() { return {}; }
-  void set_padding_bytes_cleared(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_PaddingBytesCleared::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_ChunksWritten =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      TraceStats_BufferStats>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_ChunksWritten kChunksWritten() { return {}; }
-  void set_chunks_written(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_ChunksWritten::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_ChunksRewritten =
-    ::protozero::proto_utils::FieldMetadata<
-      10,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      TraceStats_BufferStats>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_ChunksRewritten kChunksRewritten() { return {}; }
-  void set_chunks_rewritten(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_ChunksRewritten::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_ChunksOverwritten =
-    ::protozero::proto_utils::FieldMetadata<
-      3,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      TraceStats_BufferStats>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_ChunksOverwritten kChunksOverwritten() { return {}; }
-  void set_chunks_overwritten(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_ChunksOverwritten::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_ChunksDiscarded =
-    ::protozero::proto_utils::FieldMetadata<
-      18,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      TraceStats_BufferStats>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_ChunksDiscarded kChunksDiscarded() { return {}; }
-  void set_chunks_discarded(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_ChunksDiscarded::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_ChunksRead =
-    ::protozero::proto_utils::FieldMetadata<
-      17,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      TraceStats_BufferStats>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_ChunksRead kChunksRead() { return {}; }
-  void set_chunks_read(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_ChunksRead::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_ChunksCommittedOutOfOrder =
-    ::protozero::proto_utils::FieldMetadata<
-      11,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      TraceStats_BufferStats>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_ChunksCommittedOutOfOrder kChunksCommittedOutOfOrder() { return {}; }
-  void set_chunks_committed_out_of_order(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_ChunksCommittedOutOfOrder::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_WriteWrapCount =
-    ::protozero::proto_utils::FieldMetadata<
-      4,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      TraceStats_BufferStats>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_WriteWrapCount kWriteWrapCount() { return {}; }
-  void set_write_wrap_count(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_WriteWrapCount::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_PatchesSucceeded =
-    ::protozero::proto_utils::FieldMetadata<
-      5,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      TraceStats_BufferStats>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_PatchesSucceeded kPatchesSucceeded() { return {}; }
-  void set_patches_succeeded(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_PatchesSucceeded::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_PatchesFailed =
-    ::protozero::proto_utils::FieldMetadata<
-      6,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      TraceStats_BufferStats>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_PatchesFailed kPatchesFailed() { return {}; }
-  void set_patches_failed(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_PatchesFailed::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_ReadaheadsSucceeded =
-    ::protozero::proto_utils::FieldMetadata<
-      7,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      TraceStats_BufferStats>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_ReadaheadsSucceeded kReadaheadsSucceeded() { return {}; }
-  void set_readaheads_succeeded(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_ReadaheadsSucceeded::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_ReadaheadsFailed =
-    ::protozero::proto_utils::FieldMetadata<
-      8,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      TraceStats_BufferStats>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_ReadaheadsFailed kReadaheadsFailed() { return {}; }
-  void set_readaheads_failed(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_ReadaheadsFailed::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_AbiViolations =
-    ::protozero::proto_utils::FieldMetadata<
-      9,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      TraceStats_BufferStats>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_AbiViolations kAbiViolations() { return {}; }
-  void set_abi_violations(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_AbiViolations::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_TraceWriterPacketLoss =
-    ::protozero::proto_utils::FieldMetadata<
-      19,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      TraceStats_BufferStats>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_TraceWriterPacketLoss kTraceWriterPacketLoss() { return {}; }
-  void set_trace_writer_packet_loss(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_TraceWriterPacketLoss::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-};
-
-} // Namespace.
-} // Namespace.
-} // Namespace.
-#endif  // Include guard.
-// gen_amalgamated begin header: gen/protos/perfetto/config/trace_config.pbzero.h
-// Autogenerated by the ProtoZero compiler plugin. DO NOT EDIT.
-
-#ifndef PERFETTO_PROTOS_PROTOS_PERFETTO_CONFIG_TRACE_CONFIG_PROTO_H_
-#define PERFETTO_PROTOS_PROTOS_PERFETTO_CONFIG_TRACE_CONFIG_PROTO_H_
-
-#include <stddef.h>
-#include <stdint.h>
-
-// gen_amalgamated expanded: #include "perfetto/protozero/field_writer.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/message.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/packed_repeated_fields.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/proto_decoder.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/proto_utils.h"
-
-namespace perfetto {
-namespace protos {
-namespace pbzero {
-
-class DataSourceConfig;
-class TraceConfig_BufferConfig;
-class TraceConfig_BuiltinDataSource;
-class TraceConfig_DataSource;
-class TraceConfig_GuardrailOverrides;
-class TraceConfig_IncidentReportConfig;
-class TraceConfig_IncrementalStateConfig;
-class TraceConfig_ProducerConfig;
-class TraceConfig_StatsdMetadata;
-class TraceConfig_TraceFilter;
-class TraceConfig_TriggerConfig;
-class TraceConfig_TriggerConfig_Trigger;
-enum BuiltinClock : int32_t;
-enum TraceConfig_BufferConfig_FillPolicy : int32_t;
-enum TraceConfig_CompressionType : int32_t;
-enum TraceConfig_LockdownModeOperation : int32_t;
-enum TraceConfig_StatsdLogging : int32_t;
-enum TraceConfig_TriggerConfig_TriggerMode : int32_t;
-
-enum TraceConfig_LockdownModeOperation : int32_t {
-  TraceConfig_LockdownModeOperation_LOCKDOWN_UNCHANGED = 0,
-  TraceConfig_LockdownModeOperation_LOCKDOWN_CLEAR = 1,
-  TraceConfig_LockdownModeOperation_LOCKDOWN_SET = 2,
-};
-
-const TraceConfig_LockdownModeOperation TraceConfig_LockdownModeOperation_MIN = TraceConfig_LockdownModeOperation_LOCKDOWN_UNCHANGED;
-const TraceConfig_LockdownModeOperation TraceConfig_LockdownModeOperation_MAX = TraceConfig_LockdownModeOperation_LOCKDOWN_SET;
-
-enum TraceConfig_CompressionType : int32_t {
-  TraceConfig_CompressionType_COMPRESSION_TYPE_UNSPECIFIED = 0,
-  TraceConfig_CompressionType_COMPRESSION_TYPE_DEFLATE = 1,
-};
-
-const TraceConfig_CompressionType TraceConfig_CompressionType_MIN = TraceConfig_CompressionType_COMPRESSION_TYPE_UNSPECIFIED;
-const TraceConfig_CompressionType TraceConfig_CompressionType_MAX = TraceConfig_CompressionType_COMPRESSION_TYPE_DEFLATE;
-
-enum TraceConfig_StatsdLogging : int32_t {
-  TraceConfig_StatsdLogging_STATSD_LOGGING_UNSPECIFIED = 0,
-  TraceConfig_StatsdLogging_STATSD_LOGGING_ENABLED = 1,
-  TraceConfig_StatsdLogging_STATSD_LOGGING_DISABLED = 2,
-};
-
-const TraceConfig_StatsdLogging TraceConfig_StatsdLogging_MIN = TraceConfig_StatsdLogging_STATSD_LOGGING_UNSPECIFIED;
-const TraceConfig_StatsdLogging TraceConfig_StatsdLogging_MAX = TraceConfig_StatsdLogging_STATSD_LOGGING_DISABLED;
-
-enum TraceConfig_TriggerConfig_TriggerMode : int32_t {
-  TraceConfig_TriggerConfig_TriggerMode_UNSPECIFIED = 0,
-  TraceConfig_TriggerConfig_TriggerMode_START_TRACING = 1,
-  TraceConfig_TriggerConfig_TriggerMode_STOP_TRACING = 2,
-};
-
-const TraceConfig_TriggerConfig_TriggerMode TraceConfig_TriggerConfig_TriggerMode_MIN = TraceConfig_TriggerConfig_TriggerMode_UNSPECIFIED;
-const TraceConfig_TriggerConfig_TriggerMode TraceConfig_TriggerConfig_TriggerMode_MAX = TraceConfig_TriggerConfig_TriggerMode_STOP_TRACING;
-
-enum TraceConfig_BufferConfig_FillPolicy : int32_t {
-  TraceConfig_BufferConfig_FillPolicy_UNSPECIFIED = 0,
-  TraceConfig_BufferConfig_FillPolicy_RING_BUFFER = 1,
-  TraceConfig_BufferConfig_FillPolicy_DISCARD = 2,
-};
-
-const TraceConfig_BufferConfig_FillPolicy TraceConfig_BufferConfig_FillPolicy_MIN = TraceConfig_BufferConfig_FillPolicy_UNSPECIFIED;
-const TraceConfig_BufferConfig_FillPolicy TraceConfig_BufferConfig_FillPolicy_MAX = TraceConfig_BufferConfig_FillPolicy_DISCARD;
-
-class TraceConfig_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/32, /*HAS_NONPACKED_REPEATED_FIELDS=*/true> {
- public:
-  TraceConfig_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit TraceConfig_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit TraceConfig_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_buffers() const { return at<1>().valid(); }
-  ::protozero::RepeatedFieldIterator<::protozero::ConstBytes> buffers() const { return GetRepeated<::protozero::ConstBytes>(1); }
-  bool has_data_sources() const { return at<2>().valid(); }
-  ::protozero::RepeatedFieldIterator<::protozero::ConstBytes> data_sources() const { return GetRepeated<::protozero::ConstBytes>(2); }
-  bool has_builtin_data_sources() const { return at<20>().valid(); }
-  ::protozero::ConstBytes builtin_data_sources() const { return at<20>().as_bytes(); }
-  bool has_duration_ms() const { return at<3>().valid(); }
-  uint32_t duration_ms() const { return at<3>().as_uint32(); }
-  bool has_enable_extra_guardrails() const { return at<4>().valid(); }
-  bool enable_extra_guardrails() const { return at<4>().as_bool(); }
-  bool has_lockdown_mode() const { return at<5>().valid(); }
-  int32_t lockdown_mode() const { return at<5>().as_int32(); }
-  bool has_producers() const { return at<6>().valid(); }
-  ::protozero::RepeatedFieldIterator<::protozero::ConstBytes> producers() const { return GetRepeated<::protozero::ConstBytes>(6); }
-  bool has_statsd_metadata() const { return at<7>().valid(); }
-  ::protozero::ConstBytes statsd_metadata() const { return at<7>().as_bytes(); }
-  bool has_write_into_file() const { return at<8>().valid(); }
-  bool write_into_file() const { return at<8>().as_bool(); }
-  bool has_output_path() const { return at<29>().valid(); }
-  ::protozero::ConstChars output_path() const { return at<29>().as_string(); }
-  bool has_file_write_period_ms() const { return at<9>().valid(); }
-  uint32_t file_write_period_ms() const { return at<9>().as_uint32(); }
-  bool has_max_file_size_bytes() const { return at<10>().valid(); }
-  uint64_t max_file_size_bytes() const { return at<10>().as_uint64(); }
-  bool has_guardrail_overrides() const { return at<11>().valid(); }
-  ::protozero::ConstBytes guardrail_overrides() const { return at<11>().as_bytes(); }
-  bool has_deferred_start() const { return at<12>().valid(); }
-  bool deferred_start() const { return at<12>().as_bool(); }
-  bool has_flush_period_ms() const { return at<13>().valid(); }
-  uint32_t flush_period_ms() const { return at<13>().as_uint32(); }
-  bool has_flush_timeout_ms() const { return at<14>().valid(); }
-  uint32_t flush_timeout_ms() const { return at<14>().as_uint32(); }
-  bool has_data_source_stop_timeout_ms() const { return at<23>().valid(); }
-  uint32_t data_source_stop_timeout_ms() const { return at<23>().as_uint32(); }
-  bool has_notify_traceur() const { return at<16>().valid(); }
-  bool notify_traceur() const { return at<16>().as_bool(); }
-  bool has_bugreport_score() const { return at<30>().valid(); }
-  int32_t bugreport_score() const { return at<30>().as_int32(); }
-  bool has_trigger_config() const { return at<17>().valid(); }
-  ::protozero::ConstBytes trigger_config() const { return at<17>().as_bytes(); }
-  bool has_activate_triggers() const { return at<18>().valid(); }
-  ::protozero::RepeatedFieldIterator<::protozero::ConstChars> activate_triggers() const { return GetRepeated<::protozero::ConstChars>(18); }
-  bool has_incremental_state_config() const { return at<21>().valid(); }
-  ::protozero::ConstBytes incremental_state_config() const { return at<21>().as_bytes(); }
-  bool has_allow_user_build_tracing() const { return at<19>().valid(); }
-  bool allow_user_build_tracing() const { return at<19>().as_bool(); }
-  bool has_unique_session_name() const { return at<22>().valid(); }
-  ::protozero::ConstChars unique_session_name() const { return at<22>().as_string(); }
-  bool has_compression_type() const { return at<24>().valid(); }
-  int32_t compression_type() const { return at<24>().as_int32(); }
-  bool has_incident_report_config() const { return at<25>().valid(); }
-  ::protozero::ConstBytes incident_report_config() const { return at<25>().as_bytes(); }
-  bool has_statsd_logging() const { return at<31>().valid(); }
-  int32_t statsd_logging() const { return at<31>().as_int32(); }
-  bool has_trace_uuid_msb() const { return at<27>().valid(); }
-  int64_t trace_uuid_msb() const { return at<27>().as_int64(); }
-  bool has_trace_uuid_lsb() const { return at<28>().valid(); }
-  int64_t trace_uuid_lsb() const { return at<28>().as_int64(); }
-  bool has_trace_filter() const { return at<32>().valid(); }
-  ::protozero::ConstBytes trace_filter() const { return at<32>().as_bytes(); }
-};
-
-class TraceConfig : public ::protozero::Message {
- public:
-  using Decoder = TraceConfig_Decoder;
-  enum : int32_t {
-    kBuffersFieldNumber = 1,
-    kDataSourcesFieldNumber = 2,
-    kBuiltinDataSourcesFieldNumber = 20,
-    kDurationMsFieldNumber = 3,
-    kEnableExtraGuardrailsFieldNumber = 4,
-    kLockdownModeFieldNumber = 5,
-    kProducersFieldNumber = 6,
-    kStatsdMetadataFieldNumber = 7,
-    kWriteIntoFileFieldNumber = 8,
-    kOutputPathFieldNumber = 29,
-    kFileWritePeriodMsFieldNumber = 9,
-    kMaxFileSizeBytesFieldNumber = 10,
-    kGuardrailOverridesFieldNumber = 11,
-    kDeferredStartFieldNumber = 12,
-    kFlushPeriodMsFieldNumber = 13,
-    kFlushTimeoutMsFieldNumber = 14,
-    kDataSourceStopTimeoutMsFieldNumber = 23,
-    kNotifyTraceurFieldNumber = 16,
-    kBugreportScoreFieldNumber = 30,
-    kTriggerConfigFieldNumber = 17,
-    kActivateTriggersFieldNumber = 18,
-    kIncrementalStateConfigFieldNumber = 21,
-    kAllowUserBuildTracingFieldNumber = 19,
-    kUniqueSessionNameFieldNumber = 22,
-    kCompressionTypeFieldNumber = 24,
-    kIncidentReportConfigFieldNumber = 25,
-    kStatsdLoggingFieldNumber = 31,
-    kTraceUuidMsbFieldNumber = 27,
-    kTraceUuidLsbFieldNumber = 28,
-    kTraceFilterFieldNumber = 32,
-  };
-  using BufferConfig = ::perfetto::protos::pbzero::TraceConfig_BufferConfig;
-  using DataSource = ::perfetto::protos::pbzero::TraceConfig_DataSource;
-  using BuiltinDataSource = ::perfetto::protos::pbzero::TraceConfig_BuiltinDataSource;
-  using ProducerConfig = ::perfetto::protos::pbzero::TraceConfig_ProducerConfig;
-  using StatsdMetadata = ::perfetto::protos::pbzero::TraceConfig_StatsdMetadata;
-  using GuardrailOverrides = ::perfetto::protos::pbzero::TraceConfig_GuardrailOverrides;
-  using TriggerConfig = ::perfetto::protos::pbzero::TraceConfig_TriggerConfig;
-  using IncrementalStateConfig = ::perfetto::protos::pbzero::TraceConfig_IncrementalStateConfig;
-  using IncidentReportConfig = ::perfetto::protos::pbzero::TraceConfig_IncidentReportConfig;
-  using TraceFilter = ::perfetto::protos::pbzero::TraceConfig_TraceFilter;
-  using LockdownModeOperation = ::perfetto::protos::pbzero::TraceConfig_LockdownModeOperation;
-  using CompressionType = ::perfetto::protos::pbzero::TraceConfig_CompressionType;
-  using StatsdLogging = ::perfetto::protos::pbzero::TraceConfig_StatsdLogging;
-  static const LockdownModeOperation LOCKDOWN_UNCHANGED = TraceConfig_LockdownModeOperation_LOCKDOWN_UNCHANGED;
-  static const LockdownModeOperation LOCKDOWN_CLEAR = TraceConfig_LockdownModeOperation_LOCKDOWN_CLEAR;
-  static const LockdownModeOperation LOCKDOWN_SET = TraceConfig_LockdownModeOperation_LOCKDOWN_SET;
-  static const CompressionType COMPRESSION_TYPE_UNSPECIFIED = TraceConfig_CompressionType_COMPRESSION_TYPE_UNSPECIFIED;
-  static const CompressionType COMPRESSION_TYPE_DEFLATE = TraceConfig_CompressionType_COMPRESSION_TYPE_DEFLATE;
-  static const StatsdLogging STATSD_LOGGING_UNSPECIFIED = TraceConfig_StatsdLogging_STATSD_LOGGING_UNSPECIFIED;
-  static const StatsdLogging STATSD_LOGGING_ENABLED = TraceConfig_StatsdLogging_STATSD_LOGGING_ENABLED;
-  static const StatsdLogging STATSD_LOGGING_DISABLED = TraceConfig_StatsdLogging_STATSD_LOGGING_DISABLED;
-
-  using FieldMetadata_Buffers =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kRepeatedNotPacked,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      TraceConfig_BufferConfig,
-      TraceConfig>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Buffers kBuffers() { return {}; }
-  template <typename T = TraceConfig_BufferConfig> T* add_buffers() {
-    return BeginNestedMessage<T>(1);
-  }
-
-
-  using FieldMetadata_DataSources =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kRepeatedNotPacked,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      TraceConfig_DataSource,
-      TraceConfig>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_DataSources kDataSources() { return {}; }
-  template <typename T = TraceConfig_DataSource> T* add_data_sources() {
-    return BeginNestedMessage<T>(2);
-  }
-
-
-  using FieldMetadata_BuiltinDataSources =
-    ::protozero::proto_utils::FieldMetadata<
-      20,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      TraceConfig_BuiltinDataSource,
-      TraceConfig>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_BuiltinDataSources kBuiltinDataSources() { return {}; }
-  template <typename T = TraceConfig_BuiltinDataSource> T* set_builtin_data_sources() {
-    return BeginNestedMessage<T>(20);
-  }
-
-
-  using FieldMetadata_DurationMs =
-    ::protozero::proto_utils::FieldMetadata<
-      3,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      TraceConfig>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_DurationMs kDurationMs() { return {}; }
-  void set_duration_ms(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_DurationMs::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_EnableExtraGuardrails =
-    ::protozero::proto_utils::FieldMetadata<
-      4,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kBool,
-      bool,
-      TraceConfig>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_EnableExtraGuardrails kEnableExtraGuardrails() { return {}; }
-  void set_enable_extra_guardrails(bool value) {
-    static constexpr uint32_t field_id = FieldMetadata_EnableExtraGuardrails::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kBool>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_LockdownMode =
-    ::protozero::proto_utils::FieldMetadata<
-      5,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kEnum,
-      ::perfetto::protos::pbzero::TraceConfig_LockdownModeOperation,
-      TraceConfig>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_LockdownMode kLockdownMode() { return {}; }
-  void set_lockdown_mode(::perfetto::protos::pbzero::TraceConfig_LockdownModeOperation value) {
-    static constexpr uint32_t field_id = FieldMetadata_LockdownMode::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kEnum>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Producers =
-    ::protozero::proto_utils::FieldMetadata<
-      6,
-      ::protozero::proto_utils::RepetitionType::kRepeatedNotPacked,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      TraceConfig_ProducerConfig,
-      TraceConfig>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Producers kProducers() { return {}; }
-  template <typename T = TraceConfig_ProducerConfig> T* add_producers() {
-    return BeginNestedMessage<T>(6);
-  }
-
-
-  using FieldMetadata_StatsdMetadata =
-    ::protozero::proto_utils::FieldMetadata<
-      7,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      TraceConfig_StatsdMetadata,
-      TraceConfig>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_StatsdMetadata kStatsdMetadata() { return {}; }
-  template <typename T = TraceConfig_StatsdMetadata> T* set_statsd_metadata() {
-    return BeginNestedMessage<T>(7);
-  }
-
-
-  using FieldMetadata_WriteIntoFile =
-    ::protozero::proto_utils::FieldMetadata<
-      8,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kBool,
-      bool,
-      TraceConfig>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_WriteIntoFile kWriteIntoFile() { return {}; }
-  void set_write_into_file(bool value) {
-    static constexpr uint32_t field_id = FieldMetadata_WriteIntoFile::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kBool>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_OutputPath =
-    ::protozero::proto_utils::FieldMetadata<
-      29,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kString,
-      std::string,
-      TraceConfig>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_OutputPath kOutputPath() { return {}; }
-  void set_output_path(const char* data, size_t size) {
-    AppendBytes(FieldMetadata_OutputPath::kFieldId, data, size);
-  }
-  void set_output_path(std::string value) {
-    static constexpr uint32_t field_id = FieldMetadata_OutputPath::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kString>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_FileWritePeriodMs =
-    ::protozero::proto_utils::FieldMetadata<
-      9,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      TraceConfig>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_FileWritePeriodMs kFileWritePeriodMs() { return {}; }
-  void set_file_write_period_ms(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_FileWritePeriodMs::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_MaxFileSizeBytes =
-    ::protozero::proto_utils::FieldMetadata<
-      10,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      TraceConfig>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_MaxFileSizeBytes kMaxFileSizeBytes() { return {}; }
-  void set_max_file_size_bytes(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_MaxFileSizeBytes::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_GuardrailOverrides =
-    ::protozero::proto_utils::FieldMetadata<
-      11,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      TraceConfig_GuardrailOverrides,
-      TraceConfig>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_GuardrailOverrides kGuardrailOverrides() { return {}; }
-  template <typename T = TraceConfig_GuardrailOverrides> T* set_guardrail_overrides() {
-    return BeginNestedMessage<T>(11);
-  }
-
-
-  using FieldMetadata_DeferredStart =
-    ::protozero::proto_utils::FieldMetadata<
-      12,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kBool,
-      bool,
-      TraceConfig>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_DeferredStart kDeferredStart() { return {}; }
-  void set_deferred_start(bool value) {
-    static constexpr uint32_t field_id = FieldMetadata_DeferredStart::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kBool>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_FlushPeriodMs =
-    ::protozero::proto_utils::FieldMetadata<
-      13,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      TraceConfig>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_FlushPeriodMs kFlushPeriodMs() { return {}; }
-  void set_flush_period_ms(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_FlushPeriodMs::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_FlushTimeoutMs =
-    ::protozero::proto_utils::FieldMetadata<
-      14,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      TraceConfig>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_FlushTimeoutMs kFlushTimeoutMs() { return {}; }
-  void set_flush_timeout_ms(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_FlushTimeoutMs::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_DataSourceStopTimeoutMs =
-    ::protozero::proto_utils::FieldMetadata<
-      23,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      TraceConfig>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_DataSourceStopTimeoutMs kDataSourceStopTimeoutMs() { return {}; }
-  void set_data_source_stop_timeout_ms(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_DataSourceStopTimeoutMs::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_NotifyTraceur =
-    ::protozero::proto_utils::FieldMetadata<
-      16,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kBool,
-      bool,
-      TraceConfig>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_NotifyTraceur kNotifyTraceur() { return {}; }
-  void set_notify_traceur(bool value) {
-    static constexpr uint32_t field_id = FieldMetadata_NotifyTraceur::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kBool>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_BugreportScore =
-    ::protozero::proto_utils::FieldMetadata<
-      30,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt32,
-      int32_t,
-      TraceConfig>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_BugreportScore kBugreportScore() { return {}; }
-  void set_bugreport_score(int32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_BugreportScore::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_TriggerConfig =
-    ::protozero::proto_utils::FieldMetadata<
-      17,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      TraceConfig_TriggerConfig,
-      TraceConfig>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_TriggerConfig kTriggerConfig() { return {}; }
-  template <typename T = TraceConfig_TriggerConfig> T* set_trigger_config() {
-    return BeginNestedMessage<T>(17);
-  }
-
-
-  using FieldMetadata_ActivateTriggers =
-    ::protozero::proto_utils::FieldMetadata<
-      18,
-      ::protozero::proto_utils::RepetitionType::kRepeatedNotPacked,
-      ::protozero::proto_utils::ProtoSchemaType::kString,
-      std::string,
-      TraceConfig>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_ActivateTriggers kActivateTriggers() { return {}; }
-  void add_activate_triggers(const char* data, size_t size) {
-    AppendBytes(FieldMetadata_ActivateTriggers::kFieldId, data, size);
-  }
-  void add_activate_triggers(std::string value) {
-    static constexpr uint32_t field_id = FieldMetadata_ActivateTriggers::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kString>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_IncrementalStateConfig =
-    ::protozero::proto_utils::FieldMetadata<
-      21,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      TraceConfig_IncrementalStateConfig,
-      TraceConfig>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_IncrementalStateConfig kIncrementalStateConfig() { return {}; }
-  template <typename T = TraceConfig_IncrementalStateConfig> T* set_incremental_state_config() {
-    return BeginNestedMessage<T>(21);
-  }
-
-
-  using FieldMetadata_AllowUserBuildTracing =
-    ::protozero::proto_utils::FieldMetadata<
-      19,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kBool,
-      bool,
-      TraceConfig>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_AllowUserBuildTracing kAllowUserBuildTracing() { return {}; }
-  void set_allow_user_build_tracing(bool value) {
-    static constexpr uint32_t field_id = FieldMetadata_AllowUserBuildTracing::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kBool>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_UniqueSessionName =
-    ::protozero::proto_utils::FieldMetadata<
-      22,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kString,
-      std::string,
-      TraceConfig>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_UniqueSessionName kUniqueSessionName() { return {}; }
-  void set_unique_session_name(const char* data, size_t size) {
-    AppendBytes(FieldMetadata_UniqueSessionName::kFieldId, data, size);
-  }
-  void set_unique_session_name(std::string value) {
-    static constexpr uint32_t field_id = FieldMetadata_UniqueSessionName::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kString>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_CompressionType =
-    ::protozero::proto_utils::FieldMetadata<
-      24,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kEnum,
-      ::perfetto::protos::pbzero::TraceConfig_CompressionType,
-      TraceConfig>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_CompressionType kCompressionType() { return {}; }
-  void set_compression_type(::perfetto::protos::pbzero::TraceConfig_CompressionType value) {
-    static constexpr uint32_t field_id = FieldMetadata_CompressionType::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kEnum>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_IncidentReportConfig =
-    ::protozero::proto_utils::FieldMetadata<
-      25,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      TraceConfig_IncidentReportConfig,
-      TraceConfig>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_IncidentReportConfig kIncidentReportConfig() { return {}; }
-  template <typename T = TraceConfig_IncidentReportConfig> T* set_incident_report_config() {
-    return BeginNestedMessage<T>(25);
-  }
-
-
-  using FieldMetadata_StatsdLogging =
-    ::protozero::proto_utils::FieldMetadata<
-      31,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kEnum,
-      ::perfetto::protos::pbzero::TraceConfig_StatsdLogging,
-      TraceConfig>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_StatsdLogging kStatsdLogging() { return {}; }
-  void set_statsd_logging(::perfetto::protos::pbzero::TraceConfig_StatsdLogging value) {
-    static constexpr uint32_t field_id = FieldMetadata_StatsdLogging::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kEnum>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_TraceUuidMsb =
-    ::protozero::proto_utils::FieldMetadata<
-      27,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt64,
-      int64_t,
-      TraceConfig>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_TraceUuidMsb kTraceUuidMsb() { return {}; }
-  void set_trace_uuid_msb(int64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_TraceUuidMsb::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_TraceUuidLsb =
-    ::protozero::proto_utils::FieldMetadata<
-      28,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt64,
-      int64_t,
-      TraceConfig>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_TraceUuidLsb kTraceUuidLsb() { return {}; }
-  void set_trace_uuid_lsb(int64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_TraceUuidLsb::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_TraceFilter =
-    ::protozero::proto_utils::FieldMetadata<
-      32,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      TraceConfig_TraceFilter,
-      TraceConfig>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_TraceFilter kTraceFilter() { return {}; }
-  template <typename T = TraceConfig_TraceFilter> T* set_trace_filter() {
-    return BeginNestedMessage<T>(32);
-  }
-
-};
-
-class TraceConfig_TraceFilter_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/1, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  TraceConfig_TraceFilter_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit TraceConfig_TraceFilter_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit TraceConfig_TraceFilter_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_bytecode() const { return at<1>().valid(); }
-  ::protozero::ConstBytes bytecode() const { return at<1>().as_bytes(); }
-};
-
-class TraceConfig_TraceFilter : public ::protozero::Message {
- public:
-  using Decoder = TraceConfig_TraceFilter_Decoder;
-  enum : int32_t {
-    kBytecodeFieldNumber = 1,
-  };
-
-  using FieldMetadata_Bytecode =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kBytes,
-      std::string,
-      TraceConfig_TraceFilter>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Bytecode kBytecode() { return {}; }
-  void set_bytecode(const uint8_t* data, size_t size) {
-    AppendBytes(FieldMetadata_Bytecode::kFieldId, data, size);
-  }
-  void set_bytecode(std::string value) {
-    static constexpr uint32_t field_id = FieldMetadata_Bytecode::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kBytes>
-        ::Append(*this, field_id, value);
-  }
-};
-
-class TraceConfig_IncidentReportConfig_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/5, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  TraceConfig_IncidentReportConfig_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit TraceConfig_IncidentReportConfig_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit TraceConfig_IncidentReportConfig_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_destination_package() const { return at<1>().valid(); }
-  ::protozero::ConstChars destination_package() const { return at<1>().as_string(); }
-  bool has_destination_class() const { return at<2>().valid(); }
-  ::protozero::ConstChars destination_class() const { return at<2>().as_string(); }
-  bool has_privacy_level() const { return at<3>().valid(); }
-  int32_t privacy_level() const { return at<3>().as_int32(); }
-  bool has_skip_incidentd() const { return at<5>().valid(); }
-  bool skip_incidentd() const { return at<5>().as_bool(); }
-  bool has_skip_dropbox() const { return at<4>().valid(); }
-  bool skip_dropbox() const { return at<4>().as_bool(); }
-};
-
-class TraceConfig_IncidentReportConfig : public ::protozero::Message {
- public:
-  using Decoder = TraceConfig_IncidentReportConfig_Decoder;
-  enum : int32_t {
-    kDestinationPackageFieldNumber = 1,
-    kDestinationClassFieldNumber = 2,
-    kPrivacyLevelFieldNumber = 3,
-    kSkipIncidentdFieldNumber = 5,
-    kSkipDropboxFieldNumber = 4,
-  };
-
-  using FieldMetadata_DestinationPackage =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kString,
-      std::string,
-      TraceConfig_IncidentReportConfig>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_DestinationPackage kDestinationPackage() { return {}; }
-  void set_destination_package(const char* data, size_t size) {
-    AppendBytes(FieldMetadata_DestinationPackage::kFieldId, data, size);
-  }
-  void set_destination_package(std::string value) {
-    static constexpr uint32_t field_id = FieldMetadata_DestinationPackage::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kString>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_DestinationClass =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kString,
-      std::string,
-      TraceConfig_IncidentReportConfig>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_DestinationClass kDestinationClass() { return {}; }
-  void set_destination_class(const char* data, size_t size) {
-    AppendBytes(FieldMetadata_DestinationClass::kFieldId, data, size);
-  }
-  void set_destination_class(std::string value) {
-    static constexpr uint32_t field_id = FieldMetadata_DestinationClass::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kString>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_PrivacyLevel =
-    ::protozero::proto_utils::FieldMetadata<
-      3,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt32,
-      int32_t,
-      TraceConfig_IncidentReportConfig>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_PrivacyLevel kPrivacyLevel() { return {}; }
-  void set_privacy_level(int32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_PrivacyLevel::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_SkipIncidentd =
-    ::protozero::proto_utils::FieldMetadata<
-      5,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kBool,
-      bool,
-      TraceConfig_IncidentReportConfig>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_SkipIncidentd kSkipIncidentd() { return {}; }
-  void set_skip_incidentd(bool value) {
-    static constexpr uint32_t field_id = FieldMetadata_SkipIncidentd::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kBool>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_SkipDropbox =
-    ::protozero::proto_utils::FieldMetadata<
-      4,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kBool,
-      bool,
-      TraceConfig_IncidentReportConfig>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_SkipDropbox kSkipDropbox() { return {}; }
-  void set_skip_dropbox(bool value) {
-    static constexpr uint32_t field_id = FieldMetadata_SkipDropbox::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kBool>
-        ::Append(*this, field_id, value);
-  }
-};
-
-class TraceConfig_IncrementalStateConfig_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/1, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  TraceConfig_IncrementalStateConfig_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit TraceConfig_IncrementalStateConfig_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit TraceConfig_IncrementalStateConfig_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_clear_period_ms() const { return at<1>().valid(); }
-  uint32_t clear_period_ms() const { return at<1>().as_uint32(); }
-};
-
-class TraceConfig_IncrementalStateConfig : public ::protozero::Message {
- public:
-  using Decoder = TraceConfig_IncrementalStateConfig_Decoder;
-  enum : int32_t {
-    kClearPeriodMsFieldNumber = 1,
-  };
-
-  using FieldMetadata_ClearPeriodMs =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      TraceConfig_IncrementalStateConfig>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_ClearPeriodMs kClearPeriodMs() { return {}; }
-  void set_clear_period_ms(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_ClearPeriodMs::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-};
-
-class TraceConfig_TriggerConfig_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/3, /*HAS_NONPACKED_REPEATED_FIELDS=*/true> {
- public:
-  TraceConfig_TriggerConfig_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit TraceConfig_TriggerConfig_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit TraceConfig_TriggerConfig_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_trigger_mode() const { return at<1>().valid(); }
-  int32_t trigger_mode() const { return at<1>().as_int32(); }
-  bool has_triggers() const { return at<2>().valid(); }
-  ::protozero::RepeatedFieldIterator<::protozero::ConstBytes> triggers() const { return GetRepeated<::protozero::ConstBytes>(2); }
-  bool has_trigger_timeout_ms() const { return at<3>().valid(); }
-  uint32_t trigger_timeout_ms() const { return at<3>().as_uint32(); }
-};
-
-class TraceConfig_TriggerConfig : public ::protozero::Message {
- public:
-  using Decoder = TraceConfig_TriggerConfig_Decoder;
-  enum : int32_t {
-    kTriggerModeFieldNumber = 1,
-    kTriggersFieldNumber = 2,
-    kTriggerTimeoutMsFieldNumber = 3,
-  };
-  using Trigger = ::perfetto::protos::pbzero::TraceConfig_TriggerConfig_Trigger;
-  using TriggerMode = ::perfetto::protos::pbzero::TraceConfig_TriggerConfig_TriggerMode;
-  static const TriggerMode UNSPECIFIED = TraceConfig_TriggerConfig_TriggerMode_UNSPECIFIED;
-  static const TriggerMode START_TRACING = TraceConfig_TriggerConfig_TriggerMode_START_TRACING;
-  static const TriggerMode STOP_TRACING = TraceConfig_TriggerConfig_TriggerMode_STOP_TRACING;
-
-  using FieldMetadata_TriggerMode =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kEnum,
-      ::perfetto::protos::pbzero::TraceConfig_TriggerConfig_TriggerMode,
-      TraceConfig_TriggerConfig>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_TriggerMode kTriggerMode() { return {}; }
-  void set_trigger_mode(::perfetto::protos::pbzero::TraceConfig_TriggerConfig_TriggerMode value) {
-    static constexpr uint32_t field_id = FieldMetadata_TriggerMode::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kEnum>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Triggers =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kRepeatedNotPacked,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      TraceConfig_TriggerConfig_Trigger,
-      TraceConfig_TriggerConfig>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Triggers kTriggers() { return {}; }
-  template <typename T = TraceConfig_TriggerConfig_Trigger> T* add_triggers() {
-    return BeginNestedMessage<T>(2);
-  }
-
-
-  using FieldMetadata_TriggerTimeoutMs =
-    ::protozero::proto_utils::FieldMetadata<
-      3,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      TraceConfig_TriggerConfig>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_TriggerTimeoutMs kTriggerTimeoutMs() { return {}; }
-  void set_trigger_timeout_ms(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_TriggerTimeoutMs::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-};
-
-class TraceConfig_TriggerConfig_Trigger_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/5, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  TraceConfig_TriggerConfig_Trigger_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit TraceConfig_TriggerConfig_Trigger_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit TraceConfig_TriggerConfig_Trigger_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_name() const { return at<1>().valid(); }
-  ::protozero::ConstChars name() const { return at<1>().as_string(); }
-  bool has_producer_name_regex() const { return at<2>().valid(); }
-  ::protozero::ConstChars producer_name_regex() const { return at<2>().as_string(); }
-  bool has_stop_delay_ms() const { return at<3>().valid(); }
-  uint32_t stop_delay_ms() const { return at<3>().as_uint32(); }
-  bool has_max_per_24_h() const { return at<4>().valid(); }
-  uint32_t max_per_24_h() const { return at<4>().as_uint32(); }
-  bool has_skip_probability() const { return at<5>().valid(); }
-  double skip_probability() const { return at<5>().as_double(); }
-};
-
-class TraceConfig_TriggerConfig_Trigger : public ::protozero::Message {
- public:
-  using Decoder = TraceConfig_TriggerConfig_Trigger_Decoder;
-  enum : int32_t {
-    kNameFieldNumber = 1,
-    kProducerNameRegexFieldNumber = 2,
-    kStopDelayMsFieldNumber = 3,
-    kMaxPer24HFieldNumber = 4,
-    kSkipProbabilityFieldNumber = 5,
-  };
-
-  using FieldMetadata_Name =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kString,
-      std::string,
-      TraceConfig_TriggerConfig_Trigger>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Name kName() { return {}; }
-  void set_name(const char* data, size_t size) {
-    AppendBytes(FieldMetadata_Name::kFieldId, data, size);
-  }
-  void set_name(std::string value) {
-    static constexpr uint32_t field_id = FieldMetadata_Name::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kString>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_ProducerNameRegex =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kString,
-      std::string,
-      TraceConfig_TriggerConfig_Trigger>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_ProducerNameRegex kProducerNameRegex() { return {}; }
-  void set_producer_name_regex(const char* data, size_t size) {
-    AppendBytes(FieldMetadata_ProducerNameRegex::kFieldId, data, size);
-  }
-  void set_producer_name_regex(std::string value) {
-    static constexpr uint32_t field_id = FieldMetadata_ProducerNameRegex::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kString>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_StopDelayMs =
-    ::protozero::proto_utils::FieldMetadata<
-      3,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      TraceConfig_TriggerConfig_Trigger>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_StopDelayMs kStopDelayMs() { return {}; }
-  void set_stop_delay_ms(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_StopDelayMs::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_MaxPer24H =
-    ::protozero::proto_utils::FieldMetadata<
-      4,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      TraceConfig_TriggerConfig_Trigger>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_MaxPer24H kMaxPer24H() { return {}; }
-  void set_max_per_24_h(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_MaxPer24H::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_SkipProbability =
-    ::protozero::proto_utils::FieldMetadata<
-      5,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kDouble,
-      double,
-      TraceConfig_TriggerConfig_Trigger>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_SkipProbability kSkipProbability() { return {}; }
-  void set_skip_probability(double value) {
-    static constexpr uint32_t field_id = FieldMetadata_SkipProbability::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kDouble>
-        ::Append(*this, field_id, value);
-  }
-};
-
-class TraceConfig_GuardrailOverrides_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/1, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  TraceConfig_GuardrailOverrides_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit TraceConfig_GuardrailOverrides_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit TraceConfig_GuardrailOverrides_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_max_upload_per_day_bytes() const { return at<1>().valid(); }
-  uint64_t max_upload_per_day_bytes() const { return at<1>().as_uint64(); }
-};
-
-class TraceConfig_GuardrailOverrides : public ::protozero::Message {
- public:
-  using Decoder = TraceConfig_GuardrailOverrides_Decoder;
-  enum : int32_t {
-    kMaxUploadPerDayBytesFieldNumber = 1,
-  };
-
-  using FieldMetadata_MaxUploadPerDayBytes =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      TraceConfig_GuardrailOverrides>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_MaxUploadPerDayBytes kMaxUploadPerDayBytes() { return {}; }
-  void set_max_upload_per_day_bytes(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_MaxUploadPerDayBytes::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-};
-
-class TraceConfig_StatsdMetadata_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/4, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  TraceConfig_StatsdMetadata_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit TraceConfig_StatsdMetadata_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit TraceConfig_StatsdMetadata_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_triggering_alert_id() const { return at<1>().valid(); }
-  int64_t triggering_alert_id() const { return at<1>().as_int64(); }
-  bool has_triggering_config_uid() const { return at<2>().valid(); }
-  int32_t triggering_config_uid() const { return at<2>().as_int32(); }
-  bool has_triggering_config_id() const { return at<3>().valid(); }
-  int64_t triggering_config_id() const { return at<3>().as_int64(); }
-  bool has_triggering_subscription_id() const { return at<4>().valid(); }
-  int64_t triggering_subscription_id() const { return at<4>().as_int64(); }
-};
-
-class TraceConfig_StatsdMetadata : public ::protozero::Message {
- public:
-  using Decoder = TraceConfig_StatsdMetadata_Decoder;
-  enum : int32_t {
-    kTriggeringAlertIdFieldNumber = 1,
-    kTriggeringConfigUidFieldNumber = 2,
-    kTriggeringConfigIdFieldNumber = 3,
-    kTriggeringSubscriptionIdFieldNumber = 4,
-  };
-
-  using FieldMetadata_TriggeringAlertId =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt64,
-      int64_t,
-      TraceConfig_StatsdMetadata>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_TriggeringAlertId kTriggeringAlertId() { return {}; }
-  void set_triggering_alert_id(int64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_TriggeringAlertId::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_TriggeringConfigUid =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt32,
-      int32_t,
-      TraceConfig_StatsdMetadata>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_TriggeringConfigUid kTriggeringConfigUid() { return {}; }
-  void set_triggering_config_uid(int32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_TriggeringConfigUid::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_TriggeringConfigId =
-    ::protozero::proto_utils::FieldMetadata<
-      3,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt64,
-      int64_t,
-      TraceConfig_StatsdMetadata>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_TriggeringConfigId kTriggeringConfigId() { return {}; }
-  void set_triggering_config_id(int64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_TriggeringConfigId::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_TriggeringSubscriptionId =
-    ::protozero::proto_utils::FieldMetadata<
-      4,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt64,
-      int64_t,
-      TraceConfig_StatsdMetadata>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_TriggeringSubscriptionId kTriggeringSubscriptionId() { return {}; }
-  void set_triggering_subscription_id(int64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_TriggeringSubscriptionId::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt64>
-        ::Append(*this, field_id, value);
-  }
-};
-
-class TraceConfig_ProducerConfig_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/3, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  TraceConfig_ProducerConfig_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit TraceConfig_ProducerConfig_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit TraceConfig_ProducerConfig_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_producer_name() const { return at<1>().valid(); }
-  ::protozero::ConstChars producer_name() const { return at<1>().as_string(); }
-  bool has_shm_size_kb() const { return at<2>().valid(); }
-  uint32_t shm_size_kb() const { return at<2>().as_uint32(); }
-  bool has_page_size_kb() const { return at<3>().valid(); }
-  uint32_t page_size_kb() const { return at<3>().as_uint32(); }
-};
-
-class TraceConfig_ProducerConfig : public ::protozero::Message {
- public:
-  using Decoder = TraceConfig_ProducerConfig_Decoder;
-  enum : int32_t {
-    kProducerNameFieldNumber = 1,
-    kShmSizeKbFieldNumber = 2,
-    kPageSizeKbFieldNumber = 3,
-  };
-
-  using FieldMetadata_ProducerName =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kString,
-      std::string,
-      TraceConfig_ProducerConfig>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_ProducerName kProducerName() { return {}; }
-  void set_producer_name(const char* data, size_t size) {
-    AppendBytes(FieldMetadata_ProducerName::kFieldId, data, size);
-  }
-  void set_producer_name(std::string value) {
-    static constexpr uint32_t field_id = FieldMetadata_ProducerName::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kString>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_ShmSizeKb =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      TraceConfig_ProducerConfig>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_ShmSizeKb kShmSizeKb() { return {}; }
-  void set_shm_size_kb(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_ShmSizeKb::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_PageSizeKb =
-    ::protozero::proto_utils::FieldMetadata<
-      3,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      TraceConfig_ProducerConfig>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_PageSizeKb kPageSizeKb() { return {}; }
-  void set_page_size_kb(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_PageSizeKb::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-};
-
-class TraceConfig_BuiltinDataSource_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/7, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  TraceConfig_BuiltinDataSource_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit TraceConfig_BuiltinDataSource_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit TraceConfig_BuiltinDataSource_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_disable_clock_snapshotting() const { return at<1>().valid(); }
-  bool disable_clock_snapshotting() const { return at<1>().as_bool(); }
-  bool has_disable_trace_config() const { return at<2>().valid(); }
-  bool disable_trace_config() const { return at<2>().as_bool(); }
-  bool has_disable_system_info() const { return at<3>().valid(); }
-  bool disable_system_info() const { return at<3>().as_bool(); }
-  bool has_disable_service_events() const { return at<4>().valid(); }
-  bool disable_service_events() const { return at<4>().as_bool(); }
-  bool has_primary_trace_clock() const { return at<5>().valid(); }
-  int32_t primary_trace_clock() const { return at<5>().as_int32(); }
-  bool has_snapshot_interval_ms() const { return at<6>().valid(); }
-  uint32_t snapshot_interval_ms() const { return at<6>().as_uint32(); }
-  bool has_prefer_suspend_clock_for_snapshot() const { return at<7>().valid(); }
-  bool prefer_suspend_clock_for_snapshot() const { return at<7>().as_bool(); }
-};
-
-class TraceConfig_BuiltinDataSource : public ::protozero::Message {
- public:
-  using Decoder = TraceConfig_BuiltinDataSource_Decoder;
-  enum : int32_t {
-    kDisableClockSnapshottingFieldNumber = 1,
-    kDisableTraceConfigFieldNumber = 2,
-    kDisableSystemInfoFieldNumber = 3,
-    kDisableServiceEventsFieldNumber = 4,
-    kPrimaryTraceClockFieldNumber = 5,
-    kSnapshotIntervalMsFieldNumber = 6,
-    kPreferSuspendClockForSnapshotFieldNumber = 7,
-  };
-
-  using FieldMetadata_DisableClockSnapshotting =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kBool,
-      bool,
-      TraceConfig_BuiltinDataSource>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_DisableClockSnapshotting kDisableClockSnapshotting() { return {}; }
-  void set_disable_clock_snapshotting(bool value) {
-    static constexpr uint32_t field_id = FieldMetadata_DisableClockSnapshotting::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kBool>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_DisableTraceConfig =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kBool,
-      bool,
-      TraceConfig_BuiltinDataSource>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_DisableTraceConfig kDisableTraceConfig() { return {}; }
-  void set_disable_trace_config(bool value) {
-    static constexpr uint32_t field_id = FieldMetadata_DisableTraceConfig::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kBool>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_DisableSystemInfo =
-    ::protozero::proto_utils::FieldMetadata<
-      3,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kBool,
-      bool,
-      TraceConfig_BuiltinDataSource>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_DisableSystemInfo kDisableSystemInfo() { return {}; }
-  void set_disable_system_info(bool value) {
-    static constexpr uint32_t field_id = FieldMetadata_DisableSystemInfo::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kBool>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_DisableServiceEvents =
-    ::protozero::proto_utils::FieldMetadata<
-      4,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kBool,
-      bool,
-      TraceConfig_BuiltinDataSource>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_DisableServiceEvents kDisableServiceEvents() { return {}; }
-  void set_disable_service_events(bool value) {
-    static constexpr uint32_t field_id = FieldMetadata_DisableServiceEvents::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kBool>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_PrimaryTraceClock =
-    ::protozero::proto_utils::FieldMetadata<
-      5,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kEnum,
-      ::perfetto::protos::pbzero::BuiltinClock,
-      TraceConfig_BuiltinDataSource>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_PrimaryTraceClock kPrimaryTraceClock() { return {}; }
-  void set_primary_trace_clock(::perfetto::protos::pbzero::BuiltinClock value) {
-    static constexpr uint32_t field_id = FieldMetadata_PrimaryTraceClock::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kEnum>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_SnapshotIntervalMs =
-    ::protozero::proto_utils::FieldMetadata<
-      6,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      TraceConfig_BuiltinDataSource>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_SnapshotIntervalMs kSnapshotIntervalMs() { return {}; }
-  void set_snapshot_interval_ms(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_SnapshotIntervalMs::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_PreferSuspendClockForSnapshot =
-    ::protozero::proto_utils::FieldMetadata<
-      7,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kBool,
-      bool,
-      TraceConfig_BuiltinDataSource>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_PreferSuspendClockForSnapshot kPreferSuspendClockForSnapshot() { return {}; }
-  void set_prefer_suspend_clock_for_snapshot(bool value) {
-    static constexpr uint32_t field_id = FieldMetadata_PreferSuspendClockForSnapshot::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kBool>
-        ::Append(*this, field_id, value);
-  }
-};
-
-class TraceConfig_DataSource_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/3, /*HAS_NONPACKED_REPEATED_FIELDS=*/true> {
- public:
-  TraceConfig_DataSource_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit TraceConfig_DataSource_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit TraceConfig_DataSource_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_config() const { return at<1>().valid(); }
-  ::protozero::ConstBytes config() const { return at<1>().as_bytes(); }
-  bool has_producer_name_filter() const { return at<2>().valid(); }
-  ::protozero::RepeatedFieldIterator<::protozero::ConstChars> producer_name_filter() const { return GetRepeated<::protozero::ConstChars>(2); }
-  bool has_producer_name_regex_filter() const { return at<3>().valid(); }
-  ::protozero::RepeatedFieldIterator<::protozero::ConstChars> producer_name_regex_filter() const { return GetRepeated<::protozero::ConstChars>(3); }
-};
-
-class TraceConfig_DataSource : public ::protozero::Message {
- public:
-  using Decoder = TraceConfig_DataSource_Decoder;
-  enum : int32_t {
-    kConfigFieldNumber = 1,
-    kProducerNameFilterFieldNumber = 2,
-    kProducerNameRegexFilterFieldNumber = 3,
-  };
-
-  using FieldMetadata_Config =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      DataSourceConfig,
-      TraceConfig_DataSource>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Config kConfig() { return {}; }
-  template <typename T = DataSourceConfig> T* set_config() {
-    return BeginNestedMessage<T>(1);
-  }
-
-
-  using FieldMetadata_ProducerNameFilter =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kRepeatedNotPacked,
-      ::protozero::proto_utils::ProtoSchemaType::kString,
-      std::string,
-      TraceConfig_DataSource>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_ProducerNameFilter kProducerNameFilter() { return {}; }
-  void add_producer_name_filter(const char* data, size_t size) {
-    AppendBytes(FieldMetadata_ProducerNameFilter::kFieldId, data, size);
-  }
-  void add_producer_name_filter(std::string value) {
-    static constexpr uint32_t field_id = FieldMetadata_ProducerNameFilter::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kString>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_ProducerNameRegexFilter =
-    ::protozero::proto_utils::FieldMetadata<
-      3,
-      ::protozero::proto_utils::RepetitionType::kRepeatedNotPacked,
-      ::protozero::proto_utils::ProtoSchemaType::kString,
-      std::string,
-      TraceConfig_DataSource>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_ProducerNameRegexFilter kProducerNameRegexFilter() { return {}; }
-  void add_producer_name_regex_filter(const char* data, size_t size) {
-    AppendBytes(FieldMetadata_ProducerNameRegexFilter::kFieldId, data, size);
-  }
-  void add_producer_name_regex_filter(std::string value) {
-    static constexpr uint32_t field_id = FieldMetadata_ProducerNameRegexFilter::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kString>
-        ::Append(*this, field_id, value);
-  }
-};
-
-class TraceConfig_BufferConfig_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/4, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  TraceConfig_BufferConfig_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit TraceConfig_BufferConfig_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit TraceConfig_BufferConfig_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_size_kb() const { return at<1>().valid(); }
-  uint32_t size_kb() const { return at<1>().as_uint32(); }
-  bool has_fill_policy() const { return at<4>().valid(); }
-  int32_t fill_policy() const { return at<4>().as_int32(); }
-};
-
-class TraceConfig_BufferConfig : public ::protozero::Message {
- public:
-  using Decoder = TraceConfig_BufferConfig_Decoder;
-  enum : int32_t {
-    kSizeKbFieldNumber = 1,
-    kFillPolicyFieldNumber = 4,
-  };
-  using FillPolicy = ::perfetto::protos::pbzero::TraceConfig_BufferConfig_FillPolicy;
-  static const FillPolicy UNSPECIFIED = TraceConfig_BufferConfig_FillPolicy_UNSPECIFIED;
-  static const FillPolicy RING_BUFFER = TraceConfig_BufferConfig_FillPolicy_RING_BUFFER;
-  static const FillPolicy DISCARD = TraceConfig_BufferConfig_FillPolicy_DISCARD;
-
-  using FieldMetadata_SizeKb =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      TraceConfig_BufferConfig>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_SizeKb kSizeKb() { return {}; }
-  void set_size_kb(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_SizeKb::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_FillPolicy =
-    ::protozero::proto_utils::FieldMetadata<
-      4,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kEnum,
-      ::perfetto::protos::pbzero::TraceConfig_BufferConfig_FillPolicy,
-      TraceConfig_BufferConfig>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_FillPolicy kFillPolicy() { return {}; }
-  void set_fill_policy(::perfetto::protos::pbzero::TraceConfig_BufferConfig_FillPolicy value) {
-    static constexpr uint32_t field_id = FieldMetadata_FillPolicy::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kEnum>
-        ::Append(*this, field_id, value);
-  }
-};
-
-} // Namespace.
-} // Namespace.
-} // Namespace.
-#endif  // Include guard.
-// gen_amalgamated begin header: gen/protos/perfetto/trace/clock_snapshot.pbzero.h
-// Autogenerated by the ProtoZero compiler plugin. DO NOT EDIT.
-
-#ifndef PERFETTO_PROTOS_PROTOS_PERFETTO_TRACE_CLOCK_SNAPSHOT_PROTO_H_
-#define PERFETTO_PROTOS_PROTOS_PERFETTO_TRACE_CLOCK_SNAPSHOT_PROTO_H_
-
-#include <stddef.h>
-#include <stdint.h>
-
-// gen_amalgamated expanded: #include "perfetto/protozero/field_writer.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/message.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/packed_repeated_fields.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/proto_decoder.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/proto_utils.h"
-
-namespace perfetto {
-namespace protos {
-namespace pbzero {
-
-class ClockSnapshot_Clock;
-enum BuiltinClock : int32_t;
-
-enum ClockSnapshot_Clock_BuiltinClocks : int32_t {
-  ClockSnapshot_Clock_BuiltinClocks_UNKNOWN = 0,
-  ClockSnapshot_Clock_BuiltinClocks_REALTIME = 1,
-  ClockSnapshot_Clock_BuiltinClocks_REALTIME_COARSE = 2,
-  ClockSnapshot_Clock_BuiltinClocks_MONOTONIC = 3,
-  ClockSnapshot_Clock_BuiltinClocks_MONOTONIC_COARSE = 4,
-  ClockSnapshot_Clock_BuiltinClocks_MONOTONIC_RAW = 5,
-  ClockSnapshot_Clock_BuiltinClocks_BOOTTIME = 6,
-  ClockSnapshot_Clock_BuiltinClocks_BUILTIN_CLOCK_MAX_ID = 63,
-};
-
-const ClockSnapshot_Clock_BuiltinClocks ClockSnapshot_Clock_BuiltinClocks_MIN = ClockSnapshot_Clock_BuiltinClocks_UNKNOWN;
-const ClockSnapshot_Clock_BuiltinClocks ClockSnapshot_Clock_BuiltinClocks_MAX = ClockSnapshot_Clock_BuiltinClocks_BUILTIN_CLOCK_MAX_ID;
-
-class ClockSnapshot_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/2, /*HAS_NONPACKED_REPEATED_FIELDS=*/true> {
- public:
-  ClockSnapshot_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit ClockSnapshot_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit ClockSnapshot_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_clocks() const { return at<1>().valid(); }
-  ::protozero::RepeatedFieldIterator<::protozero::ConstBytes> clocks() const { return GetRepeated<::protozero::ConstBytes>(1); }
-  bool has_primary_trace_clock() const { return at<2>().valid(); }
-  int32_t primary_trace_clock() const { return at<2>().as_int32(); }
-};
-
-class ClockSnapshot : public ::protozero::Message {
- public:
-  using Decoder = ClockSnapshot_Decoder;
-  enum : int32_t {
-    kClocksFieldNumber = 1,
-    kPrimaryTraceClockFieldNumber = 2,
-  };
-  using Clock = ::perfetto::protos::pbzero::ClockSnapshot_Clock;
-
-  using FieldMetadata_Clocks =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kRepeatedNotPacked,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      ClockSnapshot_Clock,
-      ClockSnapshot>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Clocks kClocks() { return {}; }
-  template <typename T = ClockSnapshot_Clock> T* add_clocks() {
-    return BeginNestedMessage<T>(1);
-  }
-
-
-  using FieldMetadata_PrimaryTraceClock =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kEnum,
-      ::perfetto::protos::pbzero::BuiltinClock,
-      ClockSnapshot>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_PrimaryTraceClock kPrimaryTraceClock() { return {}; }
-  void set_primary_trace_clock(::perfetto::protos::pbzero::BuiltinClock value) {
-    static constexpr uint32_t field_id = FieldMetadata_PrimaryTraceClock::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kEnum>
-        ::Append(*this, field_id, value);
-  }
-};
-
-class ClockSnapshot_Clock_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/4, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  ClockSnapshot_Clock_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit ClockSnapshot_Clock_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit ClockSnapshot_Clock_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_clock_id() const { return at<1>().valid(); }
-  uint32_t clock_id() const { return at<1>().as_uint32(); }
-  bool has_timestamp() const { return at<2>().valid(); }
-  uint64_t timestamp() const { return at<2>().as_uint64(); }
-  bool has_is_incremental() const { return at<3>().valid(); }
-  bool is_incremental() const { return at<3>().as_bool(); }
-  bool has_unit_multiplier_ns() const { return at<4>().valid(); }
-  uint64_t unit_multiplier_ns() const { return at<4>().as_uint64(); }
-};
-
-class ClockSnapshot_Clock : public ::protozero::Message {
- public:
-  using Decoder = ClockSnapshot_Clock_Decoder;
-  enum : int32_t {
-    kClockIdFieldNumber = 1,
-    kTimestampFieldNumber = 2,
-    kIsIncrementalFieldNumber = 3,
-    kUnitMultiplierNsFieldNumber = 4,
-  };
-  using BuiltinClocks = ::perfetto::protos::pbzero::ClockSnapshot_Clock_BuiltinClocks;
-  static const BuiltinClocks UNKNOWN = ClockSnapshot_Clock_BuiltinClocks_UNKNOWN;
-  static const BuiltinClocks REALTIME = ClockSnapshot_Clock_BuiltinClocks_REALTIME;
-  static const BuiltinClocks REALTIME_COARSE = ClockSnapshot_Clock_BuiltinClocks_REALTIME_COARSE;
-  static const BuiltinClocks MONOTONIC = ClockSnapshot_Clock_BuiltinClocks_MONOTONIC;
-  static const BuiltinClocks MONOTONIC_COARSE = ClockSnapshot_Clock_BuiltinClocks_MONOTONIC_COARSE;
-  static const BuiltinClocks MONOTONIC_RAW = ClockSnapshot_Clock_BuiltinClocks_MONOTONIC_RAW;
-  static const BuiltinClocks BOOTTIME = ClockSnapshot_Clock_BuiltinClocks_BOOTTIME;
-  static const BuiltinClocks BUILTIN_CLOCK_MAX_ID = ClockSnapshot_Clock_BuiltinClocks_BUILTIN_CLOCK_MAX_ID;
-
-  using FieldMetadata_ClockId =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      ClockSnapshot_Clock>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_ClockId kClockId() { return {}; }
-  void set_clock_id(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_ClockId::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Timestamp =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      ClockSnapshot_Clock>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Timestamp kTimestamp() { return {}; }
-  void set_timestamp(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Timestamp::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_IsIncremental =
-    ::protozero::proto_utils::FieldMetadata<
-      3,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kBool,
-      bool,
-      ClockSnapshot_Clock>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_IsIncremental kIsIncremental() { return {}; }
-  void set_is_incremental(bool value) {
-    static constexpr uint32_t field_id = FieldMetadata_IsIncremental::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kBool>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_UnitMultiplierNs =
-    ::protozero::proto_utils::FieldMetadata<
-      4,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      ClockSnapshot_Clock>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_UnitMultiplierNs kUnitMultiplierNs() { return {}; }
-  void set_unit_multiplier_ns(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_UnitMultiplierNs::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-};
-
-} // Namespace.
-} // Namespace.
-} // Namespace.
-#endif  // Include guard.
-// gen_amalgamated begin header: gen/protos/perfetto/trace/perfetto/tracing_service_event.pbzero.h
-// Autogenerated by the ProtoZero compiler plugin. DO NOT EDIT.
-
-#ifndef PERFETTO_PROTOS_PROTOS_PERFETTO_TRACE_PERFETTO_TRACING_SERVICE_EVENT_PROTO_H_
-#define PERFETTO_PROTOS_PROTOS_PERFETTO_TRACE_PERFETTO_TRACING_SERVICE_EVENT_PROTO_H_
-
-#include <stddef.h>
-#include <stdint.h>
-
-// gen_amalgamated expanded: #include "perfetto/protozero/field_writer.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/message.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/packed_repeated_fields.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/proto_decoder.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/proto_utils.h"
-
-namespace perfetto {
-namespace protos {
-namespace pbzero {
-
-
-class TracingServiceEvent_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/6, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  TracingServiceEvent_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit TracingServiceEvent_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit TracingServiceEvent_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_tracing_started() const { return at<2>().valid(); }
-  bool tracing_started() const { return at<2>().as_bool(); }
-  bool has_all_data_sources_started() const { return at<1>().valid(); }
-  bool all_data_sources_started() const { return at<1>().as_bool(); }
-  bool has_all_data_sources_flushed() const { return at<3>().valid(); }
-  bool all_data_sources_flushed() const { return at<3>().as_bool(); }
-  bool has_read_tracing_buffers_completed() const { return at<4>().valid(); }
-  bool read_tracing_buffers_completed() const { return at<4>().as_bool(); }
-  bool has_tracing_disabled() const { return at<5>().valid(); }
-  bool tracing_disabled() const { return at<5>().as_bool(); }
-  bool has_seized_for_bugreport() const { return at<6>().valid(); }
-  bool seized_for_bugreport() const { return at<6>().as_bool(); }
-};
-
-class TracingServiceEvent : public ::protozero::Message {
- public:
-  using Decoder = TracingServiceEvent_Decoder;
-  enum : int32_t {
-    kTracingStartedFieldNumber = 2,
-    kAllDataSourcesStartedFieldNumber = 1,
-    kAllDataSourcesFlushedFieldNumber = 3,
-    kReadTracingBuffersCompletedFieldNumber = 4,
-    kTracingDisabledFieldNumber = 5,
-    kSeizedForBugreportFieldNumber = 6,
-  };
-
-  using FieldMetadata_TracingStarted =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kBool,
-      bool,
-      TracingServiceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_TracingStarted kTracingStarted() { return {}; }
-  void set_tracing_started(bool value) {
-    static constexpr uint32_t field_id = FieldMetadata_TracingStarted::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kBool>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_AllDataSourcesStarted =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kBool,
-      bool,
-      TracingServiceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_AllDataSourcesStarted kAllDataSourcesStarted() { return {}; }
-  void set_all_data_sources_started(bool value) {
-    static constexpr uint32_t field_id = FieldMetadata_AllDataSourcesStarted::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kBool>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_AllDataSourcesFlushed =
-    ::protozero::proto_utils::FieldMetadata<
-      3,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kBool,
-      bool,
-      TracingServiceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_AllDataSourcesFlushed kAllDataSourcesFlushed() { return {}; }
-  void set_all_data_sources_flushed(bool value) {
-    static constexpr uint32_t field_id = FieldMetadata_AllDataSourcesFlushed::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kBool>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_ReadTracingBuffersCompleted =
-    ::protozero::proto_utils::FieldMetadata<
-      4,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kBool,
-      bool,
-      TracingServiceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_ReadTracingBuffersCompleted kReadTracingBuffersCompleted() { return {}; }
-  void set_read_tracing_buffers_completed(bool value) {
-    static constexpr uint32_t field_id = FieldMetadata_ReadTracingBuffersCompleted::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kBool>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_TracingDisabled =
-    ::protozero::proto_utils::FieldMetadata<
-      5,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kBool,
-      bool,
-      TracingServiceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_TracingDisabled kTracingDisabled() { return {}; }
-  void set_tracing_disabled(bool value) {
-    static constexpr uint32_t field_id = FieldMetadata_TracingDisabled::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kBool>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_SeizedForBugreport =
-    ::protozero::proto_utils::FieldMetadata<
-      6,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kBool,
-      bool,
-      TracingServiceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_SeizedForBugreport kSeizedForBugreport() { return {}; }
-  void set_seized_for_bugreport(bool value) {
-    static constexpr uint32_t field_id = FieldMetadata_SeizedForBugreport::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kBool>
-        ::Append(*this, field_id, value);
-  }
-};
-
-} // Namespace.
-} // Namespace.
-} // Namespace.
-#endif  // Include guard.
-// gen_amalgamated begin header: gen/protos/perfetto/trace/system_info.pbzero.h
-// Autogenerated by the ProtoZero compiler plugin. DO NOT EDIT.
-
-#ifndef PERFETTO_PROTOS_PROTOS_PERFETTO_TRACE_SYSTEM_INFO_PROTO_H_
-#define PERFETTO_PROTOS_PROTOS_PERFETTO_TRACE_SYSTEM_INFO_PROTO_H_
-
-#include <stddef.h>
-#include <stdint.h>
-
-// gen_amalgamated expanded: #include "perfetto/protozero/field_writer.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/message.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/packed_repeated_fields.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/proto_decoder.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/proto_utils.h"
-
-namespace perfetto {
-namespace protos {
-namespace pbzero {
-
-class Utsname;
-
-class SystemInfo_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/4, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  SystemInfo_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit SystemInfo_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit SystemInfo_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_utsname() const { return at<1>().valid(); }
-  ::protozero::ConstBytes utsname() const { return at<1>().as_bytes(); }
-  bool has_android_build_fingerprint() const { return at<2>().valid(); }
-  ::protozero::ConstChars android_build_fingerprint() const { return at<2>().as_string(); }
-  bool has_hz() const { return at<3>().valid(); }
-  int64_t hz() const { return at<3>().as_int64(); }
-  bool has_tracing_service_version() const { return at<4>().valid(); }
-  ::protozero::ConstChars tracing_service_version() const { return at<4>().as_string(); }
-};
-
-class SystemInfo : public ::protozero::Message {
- public:
-  using Decoder = SystemInfo_Decoder;
-  enum : int32_t {
-    kUtsnameFieldNumber = 1,
-    kAndroidBuildFingerprintFieldNumber = 2,
-    kHzFieldNumber = 3,
-    kTracingServiceVersionFieldNumber = 4,
-  };
-
-  using FieldMetadata_Utsname =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      Utsname,
-      SystemInfo>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Utsname kUtsname() { return {}; }
-  template <typename T = Utsname> T* set_utsname() {
-    return BeginNestedMessage<T>(1);
-  }
-
-
-  using FieldMetadata_AndroidBuildFingerprint =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kString,
-      std::string,
-      SystemInfo>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_AndroidBuildFingerprint kAndroidBuildFingerprint() { return {}; }
-  void set_android_build_fingerprint(const char* data, size_t size) {
-    AppendBytes(FieldMetadata_AndroidBuildFingerprint::kFieldId, data, size);
-  }
-  void set_android_build_fingerprint(std::string value) {
-    static constexpr uint32_t field_id = FieldMetadata_AndroidBuildFingerprint::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kString>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Hz =
-    ::protozero::proto_utils::FieldMetadata<
-      3,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt64,
-      int64_t,
-      SystemInfo>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Hz kHz() { return {}; }
-  void set_hz(int64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Hz::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_TracingServiceVersion =
-    ::protozero::proto_utils::FieldMetadata<
-      4,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kString,
-      std::string,
-      SystemInfo>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_TracingServiceVersion kTracingServiceVersion() { return {}; }
-  void set_tracing_service_version(const char* data, size_t size) {
-    AppendBytes(FieldMetadata_TracingServiceVersion::kFieldId, data, size);
-  }
-  void set_tracing_service_version(std::string value) {
-    static constexpr uint32_t field_id = FieldMetadata_TracingServiceVersion::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kString>
-        ::Append(*this, field_id, value);
-  }
-};
-
-class Utsname_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/4, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  Utsname_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit Utsname_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit Utsname_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_sysname() const { return at<1>().valid(); }
-  ::protozero::ConstChars sysname() const { return at<1>().as_string(); }
-  bool has_version() const { return at<2>().valid(); }
-  ::protozero::ConstChars version() const { return at<2>().as_string(); }
-  bool has_release() const { return at<3>().valid(); }
-  ::protozero::ConstChars release() const { return at<3>().as_string(); }
-  bool has_machine() const { return at<4>().valid(); }
-  ::protozero::ConstChars machine() const { return at<4>().as_string(); }
-};
-
-class Utsname : public ::protozero::Message {
- public:
-  using Decoder = Utsname_Decoder;
-  enum : int32_t {
-    kSysnameFieldNumber = 1,
-    kVersionFieldNumber = 2,
-    kReleaseFieldNumber = 3,
-    kMachineFieldNumber = 4,
-  };
-
-  using FieldMetadata_Sysname =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kString,
-      std::string,
-      Utsname>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Sysname kSysname() { return {}; }
-  void set_sysname(const char* data, size_t size) {
-    AppendBytes(FieldMetadata_Sysname::kFieldId, data, size);
-  }
-  void set_sysname(std::string value) {
-    static constexpr uint32_t field_id = FieldMetadata_Sysname::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kString>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Version =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kString,
-      std::string,
-      Utsname>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Version kVersion() { return {}; }
-  void set_version(const char* data, size_t size) {
-    AppendBytes(FieldMetadata_Version::kFieldId, data, size);
-  }
-  void set_version(std::string value) {
-    static constexpr uint32_t field_id = FieldMetadata_Version::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kString>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Release =
-    ::protozero::proto_utils::FieldMetadata<
-      3,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kString,
-      std::string,
-      Utsname>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Release kRelease() { return {}; }
-  void set_release(const char* data, size_t size) {
-    AppendBytes(FieldMetadata_Release::kFieldId, data, size);
-  }
-  void set_release(std::string value) {
-    static constexpr uint32_t field_id = FieldMetadata_Release::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kString>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Machine =
-    ::protozero::proto_utils::FieldMetadata<
-      4,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kString,
-      std::string,
-      Utsname>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Machine kMachine() { return {}; }
-  void set_machine(const char* data, size_t size) {
-    AppendBytes(FieldMetadata_Machine::kFieldId, data, size);
-  }
-  void set_machine(std::string value) {
-    static constexpr uint32_t field_id = FieldMetadata_Machine::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kString>
-        ::Append(*this, field_id, value);
-  }
-};
-
-} // Namespace.
-} // Namespace.
-} // Namespace.
-#endif  // Include guard.
-// gen_amalgamated begin header: gen/protos/perfetto/trace/trigger.pbzero.h
-// Autogenerated by the ProtoZero compiler plugin. DO NOT EDIT.
-
-#ifndef PERFETTO_PROTOS_PROTOS_PERFETTO_TRACE_TRIGGER_PROTO_H_
-#define PERFETTO_PROTOS_PROTOS_PERFETTO_TRACE_TRIGGER_PROTO_H_
-
-#include <stddef.h>
-#include <stdint.h>
-
-// gen_amalgamated expanded: #include "perfetto/protozero/field_writer.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/message.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/packed_repeated_fields.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/proto_decoder.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/proto_utils.h"
-
-namespace perfetto {
-namespace protos {
-namespace pbzero {
-
-
-class Trigger_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/3, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  Trigger_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit Trigger_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit Trigger_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_trigger_name() const { return at<1>().valid(); }
-  ::protozero::ConstChars trigger_name() const { return at<1>().as_string(); }
-  bool has_producer_name() const { return at<2>().valid(); }
-  ::protozero::ConstChars producer_name() const { return at<2>().as_string(); }
-  bool has_trusted_producer_uid() const { return at<3>().valid(); }
-  int32_t trusted_producer_uid() const { return at<3>().as_int32(); }
-};
-
-class Trigger : public ::protozero::Message {
- public:
-  using Decoder = Trigger_Decoder;
-  enum : int32_t {
-    kTriggerNameFieldNumber = 1,
-    kProducerNameFieldNumber = 2,
-    kTrustedProducerUidFieldNumber = 3,
-  };
-
-  using FieldMetadata_TriggerName =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kString,
-      std::string,
-      Trigger>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_TriggerName kTriggerName() { return {}; }
-  void set_trigger_name(const char* data, size_t size) {
-    AppendBytes(FieldMetadata_TriggerName::kFieldId, data, size);
-  }
-  void set_trigger_name(std::string value) {
-    static constexpr uint32_t field_id = FieldMetadata_TriggerName::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kString>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_ProducerName =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kString,
-      std::string,
-      Trigger>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_ProducerName kProducerName() { return {}; }
-  void set_producer_name(const char* data, size_t size) {
-    AppendBytes(FieldMetadata_ProducerName::kFieldId, data, size);
-  }
-  void set_producer_name(std::string value) {
-    static constexpr uint32_t field_id = FieldMetadata_ProducerName::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kString>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_TrustedProducerUid =
-    ::protozero::proto_utils::FieldMetadata<
-      3,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt32,
-      int32_t,
-      Trigger>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_TrustedProducerUid kTrustedProducerUid() { return {}; }
-  void set_trusted_producer_uid(int32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_TrustedProducerUid::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt32>
-        ::Append(*this, field_id, value);
-  }
-};
-
-} // Namespace.
-} // Namespace.
-} // Namespace.
-#endif  // Include guard.
-/*
- * Copyright (C) 2017 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-// gen_amalgamated expanded: #include "src/tracing/core/tracing_service_impl.h"
-
-// gen_amalgamated expanded: #include "perfetto/base/build_config.h"
-// gen_amalgamated expanded: #include "perfetto/tracing/core/forward_decls.h"
-
-#include <errno.h>
-#include <inttypes.h>
-#include <limits.h>
-#include <string.h>
-#include <regex>
-#include <unordered_set>
-
-#if !PERFETTO_BUILDFLAG(PERFETTO_OS_WIN) && \
-    !PERFETTO_BUILDFLAG(PERFETTO_OS_NACL)
-#include <sys/uio.h>
-#include <sys/utsname.h>
-#include <unistd.h>
-#endif
-
-#if PERFETTO_BUILDFLAG(PERFETTO_OS_ANDROID)
-#include <sys/system_properties.h>
-#if PERFETTO_BUILDFLAG(PERFETTO_ANDROID_BUILD)
-// gen_amalgamated expanded: #include "src/android_internal/lazy_library_loader.h"    // nogncheck
-// gen_amalgamated expanded: #include "src/android_internal/tracing_service_proxy.h"  // nogncheck
-#endif  // PERFETTO_ANDROID_BUILD
-#endif  // PERFETTO_OS_ANDROID
-
-#if PERFETTO_BUILDFLAG(PERFETTO_OS_ANDROID) || \
-    PERFETTO_BUILDFLAG(PERFETTO_OS_LINUX) ||   \
-    PERFETTO_BUILDFLAG(PERFETTO_OS_APPLE)
-#define PERFETTO_HAS_CHMOD
-#include <sys/stat.h>
-#endif
-
-#include <algorithm>
-
-// gen_amalgamated expanded: #include "perfetto/base/build_config.h"
-// gen_amalgamated expanded: #include "perfetto/base/status.h"
-// gen_amalgamated expanded: #include "perfetto/base/task_runner.h"
-// gen_amalgamated expanded: #include "perfetto/ext/base/file_utils.h"
-// gen_amalgamated expanded: #include "perfetto/ext/base/metatrace.h"
-// gen_amalgamated expanded: #include "perfetto/ext/base/string_utils.h"
-// gen_amalgamated expanded: #include "perfetto/ext/base/temp_file.h"
-// gen_amalgamated expanded: #include "perfetto/ext/base/utils.h"
-// gen_amalgamated expanded: #include "perfetto/ext/base/version.h"
-// gen_amalgamated expanded: #include "perfetto/ext/base/watchdog.h"
-// gen_amalgamated expanded: #include "perfetto/ext/tracing/core/basic_types.h"
-// gen_amalgamated expanded: #include "perfetto/ext/tracing/core/consumer.h"
-// gen_amalgamated expanded: #include "perfetto/ext/tracing/core/observable_events.h"
-// gen_amalgamated expanded: #include "perfetto/ext/tracing/core/producer.h"
-// gen_amalgamated expanded: #include "perfetto/ext/tracing/core/shared_memory.h"
-// gen_amalgamated expanded: #include "perfetto/ext/tracing/core/shared_memory_abi.h"
-// gen_amalgamated expanded: #include "perfetto/ext/tracing/core/trace_packet.h"
-// gen_amalgamated expanded: #include "perfetto/ext/tracing/core/trace_writer.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/scattered_heap_buffer.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/static_buffer.h"
-// gen_amalgamated expanded: #include "perfetto/tracing/core/data_source_descriptor.h"
-// gen_amalgamated expanded: #include "perfetto/tracing/core/tracing_service_capabilities.h"
-// gen_amalgamated expanded: #include "perfetto/tracing/core/tracing_service_state.h"
-// gen_amalgamated expanded: #include "src/android_stats/statsd_logging_helper.h"
-// gen_amalgamated expanded: #include "src/protozero/filtering/message_filter.h"
-// gen_amalgamated expanded: #include "src/tracing/core/packet_stream_validator.h"
-// gen_amalgamated expanded: #include "src/tracing/core/shared_memory_arbiter_impl.h"
-// gen_amalgamated expanded: #include "src/tracing/core/trace_buffer.h"
-
-// gen_amalgamated expanded: #include "protos/perfetto/common/builtin_clock.gen.h"
-// gen_amalgamated expanded: #include "protos/perfetto/common/builtin_clock.pbzero.h"
-// gen_amalgamated expanded: #include "protos/perfetto/common/trace_stats.pbzero.h"
-// gen_amalgamated expanded: #include "protos/perfetto/config/trace_config.pbzero.h"
-// gen_amalgamated expanded: #include "protos/perfetto/trace/clock_snapshot.pbzero.h"
-// gen_amalgamated expanded: #include "protos/perfetto/trace/perfetto/tracing_service_event.pbzero.h"
-// gen_amalgamated expanded: #include "protos/perfetto/trace/system_info.pbzero.h"
-// gen_amalgamated expanded: #include "protos/perfetto/trace/trace_packet.pbzero.h"
-// gen_amalgamated expanded: #include "protos/perfetto/trace/trigger.pbzero.h"
-
-// General note: this class must assume that Producers are malicious and will
-// try to crash / exploit this class. We can trust pointers because they come
-// from the IPC layer, but we should never assume that that the producer calls
-// come in the right order or their arguments are sane / within bounds.
-
-// This is a macro because we want the call-site line number for the ELOG.
-#define PERFETTO_SVC_ERR(...) \
-  (PERFETTO_ELOG(__VA_ARGS__), ::perfetto::base::ErrStatus(__VA_ARGS__))
-
-namespace perfetto {
-
-#if PERFETTO_BUILDFLAG(PERFETTO_OS_ANDROID) && \
-    PERFETTO_BUILDFLAG(PERFETTO_ANDROID_BUILD)
-// These are the only SELinux approved dir for trace files that are created
-// directly by traced.
-const char* kTraceDirBasePath = "/data/misc/perfetto-traces/";
-const char* kAndroidProductionBugreportTracePath =
-    "/data/misc/perfetto-traces/bugreport/systrace.pftrace";
-#endif
-
-namespace {
-constexpr int kMaxBuffersPerConsumer = 128;
-constexpr uint32_t kDefaultSnapshotsIntervalMs = 10 * 1000;
-constexpr int kDefaultWriteIntoFilePeriodMs = 5000;
-constexpr int kMaxConcurrentTracingSessions = 15;
-constexpr int kMaxConcurrentTracingSessionsPerUid = 5;
-constexpr int kMaxConcurrentTracingSessionsForStatsdUid = 10;
-constexpr int64_t kMinSecondsBetweenTracesGuardrail = 5 * 60;
-
-constexpr uint32_t kMillisPerHour = 3600000;
-constexpr uint32_t kMillisPerDay = kMillisPerHour * 24;
-constexpr uint32_t kMaxTracingDurationMillis = 7 * 24 * kMillisPerHour;
-
-// These apply only if enable_extra_guardrails is true.
-constexpr uint32_t kGuardrailsMaxTracingBufferSizeKb = 128 * 1024;
-constexpr uint32_t kGuardrailsMaxTracingDurationMillis = 24 * kMillisPerHour;
-
-#if PERFETTO_BUILDFLAG(PERFETTO_OS_WIN) || PERFETTO_BUILDFLAG(PERFETTO_OS_NACL)
-struct iovec {
-  void* iov_base;  // Address
-  size_t iov_len;  // Block size
-};
-
-// Simple implementation of writev. Note that this does not give the atomicity
-// guarantees of a real writev, but we don't depend on these (we aren't writing
-// to the same file from another thread).
-ssize_t writev(int fd, const struct iovec* iov, int iovcnt) {
-  ssize_t total_size = 0;
-  for (int i = 0; i < iovcnt; ++i) {
-    ssize_t current_size = base::WriteAll(fd, iov[i].iov_base, iov[i].iov_len);
-    if (current_size != static_cast<ssize_t>(iov[i].iov_len))
-      return -1;
-    total_size += current_size;
-  }
-  return total_size;
-}
-
-#define IOV_MAX 1024  // Linux compatible limit.
-
-#endif  // PERFETTO_BUILDFLAG(PERFETTO_OS_WIN) ||
-        // PERFETTO_BUILDFLAG(PERFETTO_OS_NACL)
-
-// Partially encodes a CommitDataRequest in an int32 for the purposes of
-// metatracing. Note that it encodes only the bottom 10 bits of the producer id
-// (which is technically 16 bits wide).
-//
-// Format (by bit range):
-// [   31 ][         30 ][             29:20 ][            19:10 ][        9:0]
-// [unused][has flush id][num chunks to patch][num chunks to move][producer id]
-static int32_t EncodeCommitDataRequest(ProducerID producer_id,
-                                       const CommitDataRequest& req_untrusted) {
-  uint32_t cmov = static_cast<uint32_t>(req_untrusted.chunks_to_move_size());
-  uint32_t cpatch = static_cast<uint32_t>(req_untrusted.chunks_to_patch_size());
-  uint32_t has_flush_id = req_untrusted.flush_request_id() != 0;
-
-  uint32_t mask = (1 << 10) - 1;
-  uint32_t acc = 0;
-  acc |= has_flush_id << 30;
-  acc |= (cpatch & mask) << 20;
-  acc |= (cmov & mask) << 10;
-  acc |= (producer_id & mask);
-  return static_cast<int32_t>(acc);
-}
-
-void SerializeAndAppendPacket(std::vector<TracePacket>* packets,
-                              std::vector<uint8_t> packet) {
-  Slice slice = Slice::Allocate(packet.size());
-  memcpy(slice.own_data(), packet.data(), packet.size());
-  packets->emplace_back();
-  packets->back().AddSlice(std::move(slice));
-}
-
-std::tuple<size_t /*shm_size*/, size_t /*page_size*/> EnsureValidShmSizes(
-    size_t shm_size,
-    size_t page_size) {
-  // Theoretically the max page size supported by the ABI is 64KB.
-  // However, the current implementation of TraceBuffer (the non-shared
-  // userspace buffer where the service copies data) supports at most
-  // 32K. Setting 64K "works" from the producer<>consumer viewpoint
-  // but then causes the data to be discarded when copying it into
-  // TraceBuffer.
-  constexpr size_t kMaxPageSize = 32 * 1024;
-  static_assert(kMaxPageSize <= SharedMemoryABI::kMaxPageSize, "");
-
-  if (page_size == 0)
-    page_size = TracingServiceImpl::kDefaultShmPageSize;
-  if (shm_size == 0)
-    shm_size = TracingServiceImpl::kDefaultShmSize;
-
-  page_size = std::min<size_t>(page_size, kMaxPageSize);
-  shm_size = std::min<size_t>(shm_size, TracingServiceImpl::kMaxShmSize);
-
-  // The tracing page size has to be multiple of 4K. On some systems (e.g. Mac
-  // on Arm64) the system page size can be larger (e.g., 16K). That doesn't
-  // matter here, because the tracing page size is just a logical partitioning
-  // and does not have any dependencies on kernel mm syscalls (read: it's fine
-  // to have trace page sizes of 4K on a system where the kernel page size is
-  // 16K).
-  bool page_size_is_valid = page_size >= SharedMemoryABI::kMinPageSize;
-  page_size_is_valid &= page_size % SharedMemoryABI::kMinPageSize == 0;
-
-  // Only allow power of two numbers of pages, i.e. 1, 2, 4, 8 pages.
-  size_t num_pages = page_size / SharedMemoryABI::kMinPageSize;
-  page_size_is_valid &= (num_pages & (num_pages - 1)) == 0;
-
-  if (!page_size_is_valid || shm_size < page_size ||
-      shm_size % page_size != 0) {
-    return std::make_tuple(TracingServiceImpl::kDefaultShmSize,
-                           TracingServiceImpl::kDefaultShmPageSize);
-  }
-  return std::make_tuple(shm_size, page_size);
-}
-
-bool NameMatchesFilter(const std::string& name,
-                       const std::vector<std::string>& name_filter,
-                       const std::vector<std::string>& name_regex_filter) {
-  bool filter_is_set = !name_filter.empty() || !name_regex_filter.empty();
-  if (!filter_is_set)
-    return true;
-  bool filter_matches = std::find(name_filter.begin(), name_filter.end(),
-                                  name) != name_filter.end();
-  bool filter_regex_matches =
-      std::find_if(name_regex_filter.begin(), name_regex_filter.end(),
-                   [&](const std::string& regex) {
-                     return std::regex_match(
-                         name, std::regex(regex, std::regex::extended));
-                   }) != name_regex_filter.end();
-  return filter_matches || filter_regex_matches;
-}
-
-// Used when:
-// 1. TraceConfig.write_into_file == true and output_path is not empty.
-// 2. Calling SaveTraceForBugreport(), from perfetto --save-for-bugreport.
-base::ScopedFile CreateTraceFile(const std::string& path, bool overwrite) {
-#if PERFETTO_BUILDFLAG(PERFETTO_OS_ANDROID) && \
-    PERFETTO_BUILDFLAG(PERFETTO_ANDROID_BUILD)
-  // This is NOT trying to preserve any security property, SELinux does that.
-  // It just improves the actionability of the error when people try to save the
-  // trace in a location that is not SELinux-allowed (a generic "permission
-  // denied" vs "don't put it here, put it there").
-  if (!base::StartsWith(path, kTraceDirBasePath)) {
-    PERFETTO_ELOG("Invalid output_path %s. On Android it must be within %s.",
-                  path.c_str(), kTraceDirBasePath);
-    return base::ScopedFile();
-  }
-#endif
-  // O_CREAT | O_EXCL will fail if the file exists already.
-  const int flags = O_RDWR | O_CREAT | (overwrite ? O_TRUNC : O_EXCL);
-  auto fd = base::OpenFile(path, flags, 0600);
-  if (fd) {
-#if defined(PERFETTO_HAS_CHMOD)
-    // Passing 0644 directly above won't work because of umask.
-    PERFETTO_CHECK(fchmod(*fd, 0644) == 0);
-#endif
-  } else {
-    PERFETTO_PLOG("Failed to create %s", path.c_str());
-  }
-  return fd;
-}
-
-std::string GetBugreportTmpPath() {
-  return GetBugreportPath() + ".tmp";
-}
-
-bool ShouldLogEvent(const TraceConfig& cfg) {
-  switch (cfg.statsd_logging()) {
-    case TraceConfig::STATSD_LOGGING_ENABLED:
-      return true;
-    case TraceConfig::STATSD_LOGGING_DISABLED:
-      return false;
-    case TraceConfig::STATSD_LOGGING_UNSPECIFIED:
-      // For backward compatibility with older versions of perfetto_cmd.
-      return cfg.enable_extra_guardrails();
-  }
-  PERFETTO_FATAL("For GCC");
-}
-
-}  // namespace
-
-// These constants instead are defined in the header because are used by tests.
-constexpr size_t TracingServiceImpl::kDefaultShmSize;
-constexpr size_t TracingServiceImpl::kDefaultShmPageSize;
-
-constexpr size_t TracingServiceImpl::kMaxShmSize;
-constexpr uint32_t TracingServiceImpl::kDataSourceStopTimeoutMs;
-constexpr uint8_t TracingServiceImpl::kSyncMarker[];
-
-std::string GetBugreportPath() {
-#if PERFETTO_BUILDFLAG(PERFETTO_OS_ANDROID) && \
-    PERFETTO_BUILDFLAG(PERFETTO_ANDROID_BUILD)
-  return kAndroidProductionBugreportTracePath;
-#else
-  // Only for tests, SaveTraceForBugreport is not used on other OSes.
-  return base::GetSysTempDir() + "/bugreport.pftrace";
-#endif
-}
-
-// static
-std::unique_ptr<TracingService> TracingService::CreateInstance(
-    std::unique_ptr<SharedMemory::Factory> shm_factory,
-    base::TaskRunner* task_runner) {
-  return std::unique_ptr<TracingService>(
-      new TracingServiceImpl(std::move(shm_factory), task_runner));
-}
-
-TracingServiceImpl::TracingServiceImpl(
-    std::unique_ptr<SharedMemory::Factory> shm_factory,
-    base::TaskRunner* task_runner)
-    : task_runner_(task_runner),
-      shm_factory_(std::move(shm_factory)),
-      uid_(base::GetCurrentUserId()),
-      buffer_ids_(kMaxTraceBufferID),
-      trigger_probability_rand_(
-          static_cast<uint32_t>(base::GetWallTimeNs().count())),
-      weak_ptr_factory_(this) {
-  PERFETTO_DCHECK(task_runner_);
-}
-
-TracingServiceImpl::~TracingServiceImpl() {
-  // TODO(fmayer): handle teardown of all Producer.
-}
-
-std::unique_ptr<TracingService::ProducerEndpoint>
-TracingServiceImpl::ConnectProducer(Producer* producer,
-                                    uid_t uid,
-                                    const std::string& producer_name,
-                                    size_t shared_memory_size_hint_bytes,
-                                    bool in_process,
-                                    ProducerSMBScrapingMode smb_scraping_mode,
-                                    size_t shared_memory_page_size_hint_bytes,
-                                    std::unique_ptr<SharedMemory> shm,
-                                    const std::string& sdk_version) {
-  PERFETTO_DCHECK_THREAD(thread_checker_);
-
-  if (lockdown_mode_ && uid != base::GetCurrentUserId()) {
-    PERFETTO_DLOG("Lockdown mode. Rejecting producer with UID %ld",
-                  static_cast<unsigned long>(uid));
-    return nullptr;
-  }
-
-  if (producers_.size() >= kMaxProducerID) {
-    PERFETTO_DFATAL("Too many producers.");
-    return nullptr;
-  }
-  const ProducerID id = GetNextProducerID();
-  PERFETTO_DLOG("Producer %" PRIu16 " connected", id);
-
-  bool smb_scraping_enabled = smb_scraping_enabled_;
-  switch (smb_scraping_mode) {
-    case ProducerSMBScrapingMode::kDefault:
-      break;
-    case ProducerSMBScrapingMode::kEnabled:
-      smb_scraping_enabled = true;
-      break;
-    case ProducerSMBScrapingMode::kDisabled:
-      smb_scraping_enabled = false;
-      break;
-  }
-
-  std::unique_ptr<ProducerEndpointImpl> endpoint(new ProducerEndpointImpl(
-      id, uid, this, task_runner_, producer, producer_name, sdk_version,
-      in_process, smb_scraping_enabled));
-  auto it_and_inserted = producers_.emplace(id, endpoint.get());
-  PERFETTO_DCHECK(it_and_inserted.second);
-  endpoint->shmem_size_hint_bytes_ = shared_memory_size_hint_bytes;
-  endpoint->shmem_page_size_hint_bytes_ = shared_memory_page_size_hint_bytes;
-
-  // Producer::OnConnect() should run before Producer::OnTracingSetup(). The
-  // latter may be posted by SetupSharedMemory() below, so post OnConnect() now.
-  auto weak_ptr = endpoint->weak_ptr_factory_.GetWeakPtr();
-  task_runner_->PostTask([weak_ptr] {
-    if (weak_ptr)
-      weak_ptr->producer_->OnConnect();
-  });
-
-  if (shm) {
-    // The producer supplied an SMB. This is used only by Chrome; in the most
-    // common cases the SMB is created by the service and passed via
-    // OnTracingSetup(). Verify that it is correctly sized before we attempt to
-    // use it. The transport layer has to verify the integrity of the SMB (e.g.
-    // ensure that the producer can't resize if after the fact).
-    size_t shm_size, page_size;
-    std::tie(shm_size, page_size) =
-        EnsureValidShmSizes(shm->size(), endpoint->shmem_page_size_hint_bytes_);
-    if (shm_size == shm->size() &&
-        page_size == endpoint->shmem_page_size_hint_bytes_) {
-      PERFETTO_DLOG(
-          "Adopting producer-provided SMB of %zu kB for producer \"%s\"",
-          shm_size / 1024, endpoint->name_.c_str());
-      endpoint->SetupSharedMemory(std::move(shm), page_size,
-                                  /*provided_by_producer=*/true);
-    } else {
-      PERFETTO_LOG(
-          "Discarding incorrectly sized producer-provided SMB for producer "
-          "\"%s\", falling back to service-provided SMB. Requested sizes: %zu "
-          "B total, %zu B page size; suggested corrected sizes: %zu B total, "
-          "%zu B page size",
-          endpoint->name_.c_str(), shm->size(),
-          endpoint->shmem_page_size_hint_bytes_, shm_size, page_size);
-      shm.reset();
-    }
-  }
-
-  return std::unique_ptr<ProducerEndpoint>(std::move(endpoint));
-}
-
-void TracingServiceImpl::DisconnectProducer(ProducerID id) {
-  PERFETTO_DCHECK_THREAD(thread_checker_);
-  PERFETTO_DLOG("Producer %" PRIu16 " disconnected", id);
-  PERFETTO_DCHECK(producers_.count(id));
-
-  // Scrape remaining chunks for this producer to ensure we don't lose data.
-  if (auto* producer = GetProducer(id)) {
-    for (auto& session_id_and_session : tracing_sessions_)
-      ScrapeSharedMemoryBuffers(&session_id_and_session.second, producer);
-  }
-
-  for (auto it = data_sources_.begin(); it != data_sources_.end();) {
-    auto next = it;
-    next++;
-    if (it->second.producer_id == id)
-      UnregisterDataSource(id, it->second.descriptor.name());
-    it = next;
-  }
-
-  producers_.erase(id);
-  UpdateMemoryGuardrail();
-}
-
-TracingServiceImpl::ProducerEndpointImpl* TracingServiceImpl::GetProducer(
-    ProducerID id) const {
-  PERFETTO_DCHECK_THREAD(thread_checker_);
-  auto it = producers_.find(id);
-  if (it == producers_.end())
-    return nullptr;
-  return it->second;
-}
-
-std::unique_ptr<TracingService::ConsumerEndpoint>
-TracingServiceImpl::ConnectConsumer(Consumer* consumer, uid_t uid) {
-  PERFETTO_DCHECK_THREAD(thread_checker_);
-  PERFETTO_DLOG("Consumer %p connected from UID %" PRIu64,
-                reinterpret_cast<void*>(consumer), static_cast<uint64_t>(uid));
-  std::unique_ptr<ConsumerEndpointImpl> endpoint(
-      new ConsumerEndpointImpl(this, task_runner_, consumer, uid));
-  auto it_and_inserted = consumers_.emplace(endpoint.get());
-  PERFETTO_DCHECK(it_and_inserted.second);
-  // Consumer might go away before we're able to send the connect notification,
-  // if that is the case just bail out.
-  auto weak_ptr = endpoint->weak_ptr_factory_.GetWeakPtr();
-  task_runner_->PostTask([weak_ptr] {
-    if (weak_ptr)
-      weak_ptr->consumer_->OnConnect();
-  });
-  return std::unique_ptr<ConsumerEndpoint>(std::move(endpoint));
-}
-
-void TracingServiceImpl::DisconnectConsumer(ConsumerEndpointImpl* consumer) {
-  PERFETTO_DCHECK_THREAD(thread_checker_);
-  PERFETTO_DLOG("Consumer %p disconnected", reinterpret_cast<void*>(consumer));
-  PERFETTO_DCHECK(consumers_.count(consumer));
-
-  // TODO(primiano) : Check that this is safe (what happens if there are
-  // ReadBuffers() calls posted in the meantime? They need to become noop).
-  if (consumer->tracing_session_id_)
-    FreeBuffers(consumer->tracing_session_id_);  // Will also DisableTracing().
-  consumers_.erase(consumer);
-
-  // At this point no more pointers to |consumer| should be around.
-  PERFETTO_DCHECK(!std::any_of(
-      tracing_sessions_.begin(), tracing_sessions_.end(),
-      [consumer](const std::pair<const TracingSessionID, TracingSession>& kv) {
-        return kv.second.consumer_maybe_null == consumer;
-      }));
-}
-
-bool TracingServiceImpl::DetachConsumer(ConsumerEndpointImpl* consumer,
-                                        const std::string& key) {
-  PERFETTO_DCHECK_THREAD(thread_checker_);
-  PERFETTO_DLOG("Consumer %p detached", reinterpret_cast<void*>(consumer));
-  PERFETTO_DCHECK(consumers_.count(consumer));
-
-  TracingSessionID tsid = consumer->tracing_session_id_;
-  TracingSession* tracing_session;
-  if (!tsid || !(tracing_session = GetTracingSession(tsid)))
-    return false;
-
-  if (GetDetachedSession(consumer->uid_, key)) {
-    PERFETTO_ELOG("Another session has been detached with the same key \"%s\"",
-                  key.c_str());
-    return false;
-  }
-
-  PERFETTO_DCHECK(tracing_session->consumer_maybe_null == consumer);
-  tracing_session->consumer_maybe_null = nullptr;
-  tracing_session->detach_key = key;
-  consumer->tracing_session_id_ = 0;
-  return true;
-}
-
-bool TracingServiceImpl::AttachConsumer(ConsumerEndpointImpl* consumer,
-                                        const std::string& key) {
-  PERFETTO_DCHECK_THREAD(thread_checker_);
-  PERFETTO_DLOG("Consumer %p attaching to session %s",
-                reinterpret_cast<void*>(consumer), key.c_str());
-  PERFETTO_DCHECK(consumers_.count(consumer));
-
-  if (consumer->tracing_session_id_) {
-    PERFETTO_ELOG(
-        "Cannot reattach consumer to session %s"
-        " while it already attached tracing session ID %" PRIu64,
-        key.c_str(), consumer->tracing_session_id_);
-    return false;
-  }
-
-  auto* tracing_session = GetDetachedSession(consumer->uid_, key);
-  if (!tracing_session) {
-    PERFETTO_ELOG(
-        "Failed to attach consumer, session '%s' not found for uid %d",
-        key.c_str(), static_cast<int>(consumer->uid_));
-    return false;
-  }
-
-  consumer->tracing_session_id_ = tracing_session->id;
-  tracing_session->consumer_maybe_null = consumer;
-  tracing_session->detach_key.clear();
-  return true;
-}
-
-base::Status TracingServiceImpl::EnableTracing(ConsumerEndpointImpl* consumer,
-                                               const TraceConfig& cfg,
-                                               base::ScopedFile fd) {
-  PERFETTO_DCHECK_THREAD(thread_checker_);
-  PERFETTO_DLOG("Enabling tracing for consumer %p",
-                reinterpret_cast<void*>(consumer));
-  MaybeLogUploadEvent(cfg, PerfettoStatsdAtom::kTracedEnableTracing);
-  if (cfg.lockdown_mode() == TraceConfig::LOCKDOWN_SET)
-    lockdown_mode_ = true;
-  if (cfg.lockdown_mode() == TraceConfig::LOCKDOWN_CLEAR)
-    lockdown_mode_ = false;
-
-  // Scope |tracing_session| to this block to prevent accidental use of a null
-  // pointer later in this function.
-  {
-    TracingSession* tracing_session =
-        GetTracingSession(consumer->tracing_session_id_);
-    if (tracing_session) {
-      MaybeLogUploadEvent(
-          cfg, PerfettoStatsdAtom::kTracedEnableTracingExistingTraceSession);
-      return PERFETTO_SVC_ERR(
-          "A Consumer is trying to EnableTracing() but another tracing "
-          "session is already active (forgot a call to FreeBuffers() ?)");
-    }
-  }
-
-  const uint32_t max_duration_ms = cfg.enable_extra_guardrails()
-                                       ? kGuardrailsMaxTracingDurationMillis
-                                       : kMaxTracingDurationMillis;
-  if (cfg.duration_ms() > max_duration_ms) {
-    MaybeLogUploadEvent(cfg,
-                        PerfettoStatsdAtom::kTracedEnableTracingTooLongTrace);
-    return PERFETTO_SVC_ERR("Requested too long trace (%" PRIu32
-                            "ms  > %" PRIu32 " ms)",
-                            cfg.duration_ms(), max_duration_ms);
-  }
-
-  const bool has_trigger_config = cfg.trigger_config().trigger_mode() !=
-                                  TraceConfig::TriggerConfig::UNSPECIFIED;
-  if (has_trigger_config && (cfg.trigger_config().trigger_timeout_ms() == 0 ||
-                             cfg.trigger_config().trigger_timeout_ms() >
-                                 kGuardrailsMaxTracingDurationMillis)) {
-    MaybeLogUploadEvent(
-        cfg, PerfettoStatsdAtom::kTracedEnableTracingInvalidTriggerTimeout);
-    return PERFETTO_SVC_ERR(
-        "Traces with START_TRACING triggers must provide a positive "
-        "trigger_timeout_ms < 7 days (received %" PRIu32 "ms)",
-        cfg.trigger_config().trigger_timeout_ms());
-  }
-
-  if (has_trigger_config && cfg.duration_ms() != 0) {
-    MaybeLogUploadEvent(
-        cfg, PerfettoStatsdAtom::kTracedEnableTracingDurationWithTrigger);
-    return PERFETTO_SVC_ERR(
-        "duration_ms was set, this must not be set for traces with triggers.");
-  }
-
-  if (cfg.trigger_config().trigger_mode() ==
-          TraceConfig::TriggerConfig::STOP_TRACING &&
-      cfg.write_into_file()) {
-    // We don't support this usecase because there are subtle assumptions which
-    // break around TracingServiceEvents and windowed sorting (i.e. if we don't
-    // drain the events in ReadBuffers because we are waiting for STOP_TRACING,
-    // we can end up queueing up a lot of TracingServiceEvents and emitting them
-    // wildy out of order breaking windowed sorting in trace processor).
-    MaybeLogUploadEvent(
-        cfg, PerfettoStatsdAtom::kTracedEnableTracingStopTracingWriteIntoFile);
-    return PERFETTO_SVC_ERR(
-        "Specifying trigger mode STOP_TRACING and write_into_file together is "
-        "unsupported");
-  }
-
-  std::unordered_set<std::string> triggers;
-  for (const auto& trigger : cfg.trigger_config().triggers()) {
-    if (!triggers.insert(trigger.name()).second) {
-      MaybeLogUploadEvent(
-          cfg, PerfettoStatsdAtom::kTracedEnableTracingDuplicateTriggerName);
-      return PERFETTO_SVC_ERR("Duplicate trigger name: %s",
-                              trigger.name().c_str());
-    }
-  }
-
-  if (cfg.enable_extra_guardrails()) {
-    if (cfg.deferred_start()) {
-      MaybeLogUploadEvent(
-          cfg, PerfettoStatsdAtom::kTracedEnableTracingInvalidDeferredStart);
-      return PERFETTO_SVC_ERR(
-          "deferred_start=true is not supported in unsupervised traces");
-    }
-    uint64_t buf_size_sum = 0;
-    for (const auto& buf : cfg.buffers()) {
-      if (buf.size_kb() % 4 != 0) {
-        MaybeLogUploadEvent(
-            cfg, PerfettoStatsdAtom::kTracedEnableTracingInvalidBufferSize);
-        return PERFETTO_SVC_ERR(
-            "buffers.size_kb must be a multiple of 4, got %" PRIu32,
-            buf.size_kb());
-      }
-      buf_size_sum += buf.size_kb();
-    }
-    if (buf_size_sum > kGuardrailsMaxTracingBufferSizeKb) {
-      MaybeLogUploadEvent(
-          cfg, PerfettoStatsdAtom::kTracedEnableTracingBufferSizeTooLarge);
-      return PERFETTO_SVC_ERR("Requested too large trace buffer (%" PRIu64
-                              "kB  > %" PRIu32 " kB)",
-                              buf_size_sum, kGuardrailsMaxTracingBufferSizeKb);
-    }
-  }
-
-  if (cfg.buffers_size() > kMaxBuffersPerConsumer) {
-    MaybeLogUploadEvent(cfg,
-                        PerfettoStatsdAtom::kTracedEnableTracingTooManyBuffers);
-    return PERFETTO_SVC_ERR("Too many buffers configured (%d)",
-                            cfg.buffers_size());
-  }
-
-  if (!cfg.unique_session_name().empty()) {
-    const std::string& name = cfg.unique_session_name();
-    for (auto& kv : tracing_sessions_) {
-      if (kv.second.config.unique_session_name() == name) {
-        MaybeLogUploadEvent(
-            cfg, PerfettoStatsdAtom::kTracedEnableTracingDuplicateSessionName);
-        static const char fmt[] =
-            "A trace with this unique session name (%s) already exists";
-        // This happens frequently, don't make it an "E"LOG.
-        PERFETTO_LOG(fmt, name.c_str());
-        return base::ErrStatus(fmt, name.c_str());
-      }
-    }
-  }
-
-  if (cfg.enable_extra_guardrails()) {
-    // unique_session_name can be empty
-    const std::string& name = cfg.unique_session_name();
-    int64_t now_s = base::GetBootTimeS().count();
-
-    // Remove any entries where the time limit has passed so this map doesn't
-    // grow indefinitely:
-    std::map<std::string, int64_t>& sessions = session_to_last_trace_s_;
-    for (auto it = sessions.cbegin(); it != sessions.cend();) {
-      if (now_s - it->second > kMinSecondsBetweenTracesGuardrail) {
-        it = sessions.erase(it);
-      } else {
-        ++it;
-      }
-    }
-
-    int64_t& previous_s = session_to_last_trace_s_[name];
-    if (previous_s == 0) {
-      previous_s = now_s;
-    } else {
-      MaybeLogUploadEvent(
-          cfg, PerfettoStatsdAtom::kTracedEnableTracingSessionNameTooRecent);
-      return PERFETTO_SVC_ERR(
-          "A trace with unique session name \"%s\" began less than %" PRId64
-          "s ago (%" PRId64 "s)",
-          name.c_str(), kMinSecondsBetweenTracesGuardrail, now_s - previous_s);
-    }
-  }
-
-  const int sessions_for_uid = static_cast<int>(std::count_if(
-      tracing_sessions_.begin(), tracing_sessions_.end(),
-      [consumer](const decltype(tracing_sessions_)::value_type& s) {
-        return s.second.consumer_uid == consumer->uid_;
-      }));
-
-  int per_uid_limit = kMaxConcurrentTracingSessionsPerUid;
-  if (consumer->uid_ == 1066 /* AID_STATSD*/) {
-    per_uid_limit = kMaxConcurrentTracingSessionsForStatsdUid;
-  }
-  if (sessions_for_uid >= per_uid_limit) {
-    MaybeLogUploadEvent(
-        cfg, PerfettoStatsdAtom::kTracedEnableTracingTooManySessionsForUid);
-    return PERFETTO_SVC_ERR(
-        "Too many concurrent tracing sesions (%d) for uid %d limit is %d",
-        sessions_for_uid, static_cast<int>(consumer->uid_), per_uid_limit);
-  }
-
-  // TODO(primiano): This is a workaround to prevent that a producer gets stuck
-  // in a state where it stalls by design by having more TraceWriterImpl
-  // instances than free pages in the buffer. This is really a bug in
-  // trace_probes and the way it handles stalls in the shmem buffer.
-  if (tracing_sessions_.size() >= kMaxConcurrentTracingSessions) {
-    MaybeLogUploadEvent(
-        cfg, PerfettoStatsdAtom::kTracedEnableTracingTooManyConcurrentSessions);
-    return PERFETTO_SVC_ERR("Too many concurrent tracing sesions (%zu)",
-                            tracing_sessions_.size());
-  }
-
-  // If the trace config provides a filter bytecode, setup the filter now.
-  // If the filter loading fails, abort the tracing session rather than running
-  // unfiltered.
-  std::unique_ptr<protozero::MessageFilter> trace_filter;
-  if (cfg.has_trace_filter()) {
-    const auto& filt = cfg.trace_filter();
-    const std::string& bytecode = filt.bytecode();
-    trace_filter.reset(new protozero::MessageFilter());
-    if (!trace_filter->LoadFilterBytecode(bytecode.data(), bytecode.size())) {
-      MaybeLogUploadEvent(
-          cfg, PerfettoStatsdAtom::kTracedEnableTracingInvalidFilter);
-      return PERFETTO_SVC_ERR("Trace filter bytecode invalid, aborting");
-    }
-    // The filter is created using perfetto.protos.Trace as root message
-    // (because that makes it possible to play around with the `proto_filter`
-    // tool on actual traces). Here in the service, however, we deal with
-    // perfetto.protos.TracePacket(s), which are one level down (Trace.packet).
-    // The IPC client (or the write_into_filte logic in here) are responsible
-    // for pre-pending the packet preamble (See GetProtoPreamble() calls), but
-    // the preamble is not there at ReadBuffer time. Hence we change the root of
-    // the filtering to start at the Trace.packet level.
-    uint32_t packet_field_id = TracePacket::kPacketFieldNumber;
-    if (!trace_filter->SetFilterRoot(&packet_field_id, 1)) {
-      MaybeLogUploadEvent(
-          cfg, PerfettoStatsdAtom::kTracedEnableTracingInvalidFilter);
-      return PERFETTO_SVC_ERR("Failed to set filter root.");
-    }
-  }
-
-  const TracingSessionID tsid = ++last_tracing_session_id_;
-  TracingSession* tracing_session =
-      &tracing_sessions_
-           .emplace(std::piecewise_construct, std::forward_as_tuple(tsid),
-                    std::forward_as_tuple(tsid, consumer, cfg, task_runner_))
-           .first->second;
-
-  if (trace_filter)
-    tracing_session->trace_filter = std::move(trace_filter);
-
-  if (cfg.write_into_file()) {
-    if (!fd ^ !cfg.output_path().empty()) {
-      tracing_sessions_.erase(tsid);
-      MaybeLogUploadEvent(
-          tracing_session->config,
-          PerfettoStatsdAtom::kTracedEnableTracingInvalidFdOutputFile);
-      return PERFETTO_SVC_ERR(
-          "When write_into_file==true either a FD needs to be passed or "
-          "output_path must be populated (but not both)");
-    }
-    if (!cfg.output_path().empty()) {
-      fd = CreateTraceFile(cfg.output_path(), /*overwrite=*/false);
-      if (!fd) {
-        MaybeLogUploadEvent(
-            tracing_session->config,
-            PerfettoStatsdAtom::kTracedEnableTracingFailedToCreateFile);
-        tracing_sessions_.erase(tsid);
-        return PERFETTO_SVC_ERR("Failed to create the trace file %s",
-                                cfg.output_path().c_str());
-      }
-    }
-    tracing_session->write_into_file = std::move(fd);
-    uint32_t write_period_ms = cfg.file_write_period_ms();
-    if (write_period_ms == 0)
-      write_period_ms = kDefaultWriteIntoFilePeriodMs;
-    if (write_period_ms < min_write_period_ms_)
-      write_period_ms = min_write_period_ms_;
-    tracing_session->write_period_ms = write_period_ms;
-    tracing_session->max_file_size_bytes = cfg.max_file_size_bytes();
-    tracing_session->bytes_written_into_file = 0;
-  }
-
-  // Initialize the log buffers.
-  bool did_allocate_all_buffers = true;
-
-  // Allocate the trace buffers. Also create a map to translate a consumer
-  // relative index (TraceConfig.DataSourceConfig.target_buffer) into the
-  // corresponding BufferID, which is a global ID namespace for the service and
-  // all producers.
-  size_t total_buf_size_kb = 0;
-  const size_t num_buffers = static_cast<size_t>(cfg.buffers_size());
-  tracing_session->buffers_index.reserve(num_buffers);
-  for (size_t i = 0; i < num_buffers; i++) {
-    const TraceConfig::BufferConfig& buffer_cfg = cfg.buffers()[i];
-    BufferID global_id = buffer_ids_.Allocate();
-    if (!global_id) {
-      did_allocate_all_buffers = false;  // We ran out of IDs.
-      break;
-    }
-    tracing_session->buffers_index.push_back(global_id);
-    const size_t buf_size_bytes = buffer_cfg.size_kb() * 1024u;
-    total_buf_size_kb += buffer_cfg.size_kb();
-    TraceBuffer::OverwritePolicy policy =
-        buffer_cfg.fill_policy() == TraceConfig::BufferConfig::DISCARD
-            ? TraceBuffer::kDiscard
-            : TraceBuffer::kOverwrite;
-    auto it_and_inserted = buffers_.emplace(
-        global_id, TraceBuffer::Create(buf_size_bytes, policy));
-    PERFETTO_DCHECK(it_and_inserted.second);  // buffers_.count(global_id) == 0.
-    std::unique_ptr<TraceBuffer>& trace_buffer = it_and_inserted.first->second;
-    if (!trace_buffer) {
-      did_allocate_all_buffers = false;
-      break;
-    }
-  }
-
-  UpdateMemoryGuardrail();
-
-  // This can happen if either:
-  // - All the kMaxTraceBufferID slots are taken.
-  // - OOM, or, more relistically, we exhausted virtual memory.
-  // In any case, free all the previously allocated buffers and abort.
-  // TODO(fmayer): add a test to cover this case, this is quite subtle.
-  if (!did_allocate_all_buffers) {
-    for (BufferID global_id : tracing_session->buffers_index) {
-      buffer_ids_.Free(global_id);
-      buffers_.erase(global_id);
-    }
-    tracing_sessions_.erase(tsid);
-    MaybeLogUploadEvent(tracing_session->config,
-                        PerfettoStatsdAtom::kTracedEnableTracingOom);
-    return PERFETTO_SVC_ERR(
-        "Failed to allocate tracing buffers: OOM or too many buffers");
-  }
-
-  consumer->tracing_session_id_ = tsid;
-
-  // Setup the data sources on the producers without starting them.
-  for (const TraceConfig::DataSource& cfg_data_source : cfg.data_sources()) {
-    // Scan all the registered data sources with a matching name.
-    auto range = data_sources_.equal_range(cfg_data_source.config().name());
-    for (auto it = range.first; it != range.second; it++) {
-      TraceConfig::ProducerConfig producer_config;
-      for (auto& config : cfg.producers()) {
-        if (GetProducer(it->second.producer_id)->name_ ==
-            config.producer_name()) {
-          producer_config = config;
-          break;
-        }
-      }
-      SetupDataSource(cfg_data_source, producer_config, it->second,
-                      tracing_session);
-    }
-  }
-
-  bool has_start_trigger = false;
-  auto weak_this = weak_ptr_factory_.GetWeakPtr();
-  switch (cfg.trigger_config().trigger_mode()) {
-    case TraceConfig::TriggerConfig::UNSPECIFIED:
-      // no triggers are specified so this isn't a trace that is using triggers.
-      PERFETTO_DCHECK(!has_trigger_config);
-      break;
-    case TraceConfig::TriggerConfig::START_TRACING:
-      // For traces which use START_TRACE triggers we need to ensure that the
-      // tracing session will be cleaned up when it times out.
-      has_start_trigger = true;
-      task_runner_->PostDelayedTask(
-          [weak_this, tsid]() {
-            if (weak_this)
-              weak_this->OnStartTriggersTimeout(tsid);
-          },
-          cfg.trigger_config().trigger_timeout_ms());
-      break;
-    case TraceConfig::TriggerConfig::STOP_TRACING:
-      // Update the tracing_session's duration_ms to ensure that if no trigger
-      // is received the session will end and be cleaned up equal to the
-      // timeout.
-      //
-      // TODO(nuskos): Refactor this so that rather then modifying the config we
-      // have a field we look at on the tracing_session.
-      tracing_session->config.set_duration_ms(
-          cfg.trigger_config().trigger_timeout_ms());
-      break;
-  }
-
-  tracing_session->state = TracingSession::CONFIGURED;
-  PERFETTO_LOG(
-      "Configured tracing session %" PRIu64
-      ", #sources:%zu, duration:%d ms, #buffers:%d, total "
-      "buffer size:%zu KB, total sessions:%zu, uid:%d session name: \"%s\"",
-      tsid, cfg.data_sources().size(), tracing_session->config.duration_ms(),
-      cfg.buffers_size(), total_buf_size_kb, tracing_sessions_.size(),
-      static_cast<unsigned int>(consumer->uid_),
-      cfg.unique_session_name().c_str());
-
-  // Start the data sources, unless this is a case of early setup + fast
-  // triggering, either through TraceConfig.deferred_start or
-  // TraceConfig.trigger_config(). If both are specified which ever one occurs
-  // first will initiate the trace.
-  if (!cfg.deferred_start() && !has_start_trigger)
-    return StartTracing(tsid);
-
-  return base::OkStatus();
-}
-
-void TracingServiceImpl::ChangeTraceConfig(ConsumerEndpointImpl* consumer,
-                                           const TraceConfig& updated_cfg) {
-  PERFETTO_DCHECK_THREAD(thread_checker_);
-  TracingSession* tracing_session =
-      GetTracingSession(consumer->tracing_session_id_);
-  PERFETTO_DCHECK(tracing_session);
-
-  if ((tracing_session->state != TracingSession::STARTED) &&
-      (tracing_session->state != TracingSession::CONFIGURED)) {
-    PERFETTO_ELOG(
-        "ChangeTraceConfig() was called for a tracing session which isn't "
-        "running.");
-    return;
-  }
-
-  // We only support updating producer_name_{,regex}_filter (and pass-through
-  // configs) for now; null out any changeable fields and make sure the rest are
-  // identical.
-  TraceConfig new_config_copy(updated_cfg);
-  for (auto& ds_cfg : *new_config_copy.mutable_data_sources()) {
-    ds_cfg.clear_producer_name_filter();
-    ds_cfg.clear_producer_name_regex_filter();
-  }
-
-  TraceConfig current_config_copy(tracing_session->config);
-  for (auto& ds_cfg : *current_config_copy.mutable_data_sources()) {
-    ds_cfg.clear_producer_name_filter();
-    ds_cfg.clear_producer_name_regex_filter();
-  }
-
-  if (new_config_copy != current_config_copy) {
-    PERFETTO_LOG(
-        "ChangeTraceConfig() was called with a config containing unsupported "
-        "changes; only adding to the producer_name_{,regex}_filter is "
-        "currently supported and will have an effect.");
-  }
-
-  for (TraceConfig::DataSource& cfg_data_source :
-       *tracing_session->config.mutable_data_sources()) {
-    // Find the updated producer_filter in the new config.
-    std::vector<std::string> new_producer_name_filter;
-    std::vector<std::string> new_producer_name_regex_filter;
-    bool found_data_source = false;
-    for (const auto& it : updated_cfg.data_sources()) {
-      if (cfg_data_source.config().name() == it.config().name()) {
-        new_producer_name_filter = it.producer_name_filter();
-        new_producer_name_regex_filter = it.producer_name_regex_filter();
-        found_data_source = true;
-        break;
-      }
-    }
-
-    // Bail out if data source not present in the new config.
-    if (!found_data_source) {
-      PERFETTO_ELOG(
-          "ChangeTraceConfig() called without a current data source also "
-          "present in the new config: %s",
-          cfg_data_source.config().name().c_str());
-      continue;
-    }
-
-    // TODO(oysteine): Just replacing the filter means that if
-    // there are any filter entries which were present in the original config,
-    // but removed from the config passed to ChangeTraceConfig, any matching
-    // producers will keep producing but newly added producers after this
-    // point will never start.
-    *cfg_data_source.mutable_producer_name_filter() = new_producer_name_filter;
-    *cfg_data_source.mutable_producer_name_regex_filter() =
-        new_producer_name_regex_filter;
-
-    // Scan all the registered data sources with a matching name.
-    auto range = data_sources_.equal_range(cfg_data_source.config().name());
-    for (auto it = range.first; it != range.second; it++) {
-      ProducerEndpointImpl* producer = GetProducer(it->second.producer_id);
-      PERFETTO_DCHECK(producer);
-
-      // Check if the producer name of this data source is present
-      // in the name filters. We currently only support new filters, not
-      // removing old ones.
-      if (!NameMatchesFilter(producer->name_, new_producer_name_filter,
-                             new_producer_name_regex_filter)) {
-        continue;
-      }
-
-      bool already_setup = false;
-      auto& ds_instances = tracing_session->data_source_instances;
-      for (auto instance_it = ds_instances.begin();
-           instance_it != ds_instances.end(); ++instance_it) {
-        if (instance_it->first == it->second.producer_id &&
-            instance_it->second.data_source_name ==
-                cfg_data_source.config().name()) {
-          already_setup = true;
-          break;
-        }
-      }
-
-      if (already_setup)
-        continue;
-
-      // If it wasn't previously setup, set it up now.
-      // (The per-producer config is optional).
-      TraceConfig::ProducerConfig producer_config;
-      for (auto& config : tracing_session->config.producers()) {
-        if (producer->name_ == config.producer_name()) {
-          producer_config = config;
-          break;
-        }
-      }
-
-      DataSourceInstance* ds_inst = SetupDataSource(
-          cfg_data_source, producer_config, it->second, tracing_session);
-
-      if (ds_inst && tracing_session->state == TracingSession::STARTED)
-        StartDataSourceInstance(producer, tracing_session, ds_inst);
-    }
-  }
-}
-
-base::Status TracingServiceImpl::StartTracing(TracingSessionID tsid) {
-  PERFETTO_DCHECK_THREAD(thread_checker_);
-
-  auto weak_this = weak_ptr_factory_.GetWeakPtr();
-  TracingSession* tracing_session = GetTracingSession(tsid);
-  if (!tracing_session) {
-    return PERFETTO_SVC_ERR(
-        "StartTracing() failed, invalid session ID %" PRIu64, tsid);
-  }
-
-  MaybeLogUploadEvent(tracing_session->config,
-                      PerfettoStatsdAtom::kTracedStartTracing);
-
-  if (tracing_session->state != TracingSession::CONFIGURED) {
-    MaybeLogUploadEvent(
-        tracing_session->config,
-        PerfettoStatsdAtom::kTracedStartTracingInvalidSessionState);
-    return PERFETTO_SVC_ERR("StartTracing() failed, invalid session state: %d",
-                            tracing_session->state);
-  }
-
-  tracing_session->state = TracingSession::STARTED;
-
-  // We store the start of trace snapshot separately as it's important to make
-  // sure we can interpret all the data in the trace and storing it in the ring
-  // buffer means it could be overwritten by a later snapshot.
-  if (!tracing_session->config.builtin_data_sources()
-           .disable_clock_snapshotting()) {
-    SnapshotClocks(&tracing_session->initial_clock_snapshot);
-  }
-
-  // We don't snapshot the clocks here because we just did this above.
-  SnapshotLifecyleEvent(
-      tracing_session,
-      protos::pbzero::TracingServiceEvent::kTracingStartedFieldNumber,
-      false /* snapshot_clocks */);
-
-  // Periodically snapshot clocks, stats, sync markers while the trace is
-  // active. The snapshots are emitted on the future ReadBuffers() calls, which
-  // means that:
-  //  (a) If we're streaming to a file (or to a consumer) while tracing, we
-  //      write snapshots periodically into the trace.
-  //  (b) If ReadBuffers() is only called after tracing ends, we emit the latest
-  //      snapshot into the trace. For clock snapshots, we keep track of the
-  //      snapshot recorded at the beginning of the session
-  //      (initial_clock_snapshot above), as well as the most recent sampled
-  //      snapshots that showed significant new drift between different clocks.
-  //      The latter clock snapshots are sampled periodically and at lifecycle
-  //      events.
-  base::PeriodicTask::Args snapshot_task_args;
-  snapshot_task_args.start_first_task_immediately = true;
-  snapshot_task_args.use_suspend_aware_timer =
-      tracing_session->config.builtin_data_sources()
-          .prefer_suspend_clock_for_snapshot();
-  snapshot_task_args.task = [weak_this, tsid] {
-    if (weak_this)
-      weak_this->PeriodicSnapshotTask(tsid);
-  };
-  snapshot_task_args.period_ms =
-      tracing_session->config.builtin_data_sources().snapshot_interval_ms();
-  if (!snapshot_task_args.period_ms)
-    snapshot_task_args.period_ms = kDefaultSnapshotsIntervalMs;
-  tracing_session->snapshot_periodic_task.Start(snapshot_task_args);
-
-  // Trigger delayed task if the trace is time limited.
-  const uint32_t trace_duration_ms = tracing_session->config.duration_ms();
-  if (trace_duration_ms > 0) {
-    task_runner_->PostDelayedTask(
-        [weak_this, tsid] {
-          // Skip entirely the flush if the trace session doesn't exist anymore.
-          // This is to prevent misleading error messages to be logged.
-          if (!weak_this)
-            return;
-          auto* tracing_session_ptr = weak_this->GetTracingSession(tsid);
-          if (!tracing_session_ptr)
-            return;
-          // If this trace was using STOP_TRACING triggers and we've seen
-          // one, then the trigger overrides the normal timeout. In this
-          // case we just return and let the other task clean up this trace.
-          if (tracing_session_ptr->config.trigger_config().trigger_mode() ==
-                  TraceConfig::TriggerConfig::STOP_TRACING &&
-              !tracing_session_ptr->received_triggers.empty())
-            return;
-          // In all other cases (START_TRACING or no triggers) we flush
-          // after |trace_duration_ms| unconditionally.
-          weak_this->FlushAndDisableTracing(tsid);
-        },
-        trace_duration_ms);
-  }
-
-  // Start the periodic drain tasks if we should to save the trace into a file.
-  if (tracing_session->config.write_into_file()) {
-    task_runner_->PostDelayedTask(
-        [weak_this, tsid] {
-          if (weak_this)
-            weak_this->ReadBuffers(tsid, nullptr);
-        },
-        tracing_session->delay_to_next_write_period_ms());
-  }
-
-  // Start the periodic flush tasks if the config specified a flush period.
-  if (tracing_session->config.flush_period_ms())
-    PeriodicFlushTask(tsid, /*post_next_only=*/true);
-
-  // Start the periodic incremental state clear tasks if the config specified a
-  // period.
-  if (tracing_session->config.incremental_state_config().clear_period_ms()) {
-    PeriodicClearIncrementalStateTask(tsid, /*post_next_only=*/true);
-  }
-
-  for (auto& kv : tracing_session->data_source_instances) {
-    ProducerID producer_id = kv.first;
-    DataSourceInstance& data_source = kv.second;
-    ProducerEndpointImpl* producer = GetProducer(producer_id);
-    if (!producer) {
-      PERFETTO_DFATAL("Producer does not exist.");
-      continue;
-    }
-    StartDataSourceInstance(producer, tracing_session, &data_source);
-  }
-
-  MaybeNotifyAllDataSourcesStarted(tracing_session);
-  return base::OkStatus();
-}
-
-void TracingServiceImpl::StartDataSourceInstance(
-    ProducerEndpointImpl* producer,
-    TracingSession* tracing_session,
-    TracingServiceImpl::DataSourceInstance* instance) {
-  PERFETTO_DCHECK(instance->state == DataSourceInstance::CONFIGURED);
-  if (instance->will_notify_on_start) {
-    instance->state = DataSourceInstance::STARTING;
-  } else {
-    instance->state = DataSourceInstance::STARTED;
-  }
-  if (tracing_session->consumer_maybe_null) {
-    tracing_session->consumer_maybe_null->OnDataSourceInstanceStateChange(
-        *producer, *instance);
-  }
-  producer->StartDataSource(instance->instance_id, instance->config);
-
-  // If all data sources are started, notify the consumer.
-  if (instance->state == DataSourceInstance::STARTED)
-    MaybeNotifyAllDataSourcesStarted(tracing_session);
-}
-
-// DisableTracing just stops the data sources but doesn't free up any buffer.
-// This is to allow the consumer to freeze the buffers (by stopping the trace)
-// and then drain the buffers. The actual teardown of the TracingSession happens
-// in FreeBuffers().
-void TracingServiceImpl::DisableTracing(TracingSessionID tsid,
-                                        bool disable_immediately) {
-  PERFETTO_DCHECK_THREAD(thread_checker_);
-  TracingSession* tracing_session = GetTracingSession(tsid);
-  if (!tracing_session) {
-    // Can happen if the consumer calls this before EnableTracing() or after
-    // FreeBuffers().
-    PERFETTO_DLOG("DisableTracing() failed, invalid session ID %" PRIu64, tsid);
-    return;
-  }
-
-  MaybeLogUploadEvent(tracing_session->config,
-                      PerfettoStatsdAtom::kTracedDisableTracing);
-
-  switch (tracing_session->state) {
-    // Spurious call to DisableTracing() while already disabled, nothing to do.
-    case TracingSession::DISABLED:
-      PERFETTO_DCHECK(tracing_session->AllDataSourceInstancesStopped());
-      return;
-
-    // This is either:
-    // A) The case of a graceful DisableTracing() call followed by a call to
-    //    FreeBuffers(), iff |disable_immediately| == true. In this case we want
-    //    to forcefully transition in the disabled state without waiting for the
-    //    outstanding acks because the buffers are going to be destroyed soon.
-    // B) A spurious call, iff |disable_immediately| == false, in which case
-    //    there is nothing to do.
-    case TracingSession::DISABLING_WAITING_STOP_ACKS:
-      PERFETTO_DCHECK(!tracing_session->AllDataSourceInstancesStopped());
-      if (disable_immediately)
-        DisableTracingNotifyConsumerAndFlushFile(tracing_session);
-      return;
-
-    // Continues below.
-    case TracingSession::CONFIGURED:
-      // If the session didn't even start there is no need to orchestrate a
-      // graceful stop of data sources.
-      disable_immediately = true;
-      break;
-
-    // This is the nominal case, continues below.
-    case TracingSession::STARTED:
-      break;
-  }
-
-  for (auto& data_source_inst : tracing_session->data_source_instances) {
-    const ProducerID producer_id = data_source_inst.first;
-    DataSourceInstance& instance = data_source_inst.second;
-    ProducerEndpointImpl* producer = GetProducer(producer_id);
-    PERFETTO_DCHECK(producer);
-    PERFETTO_DCHECK(instance.state == DataSourceInstance::CONFIGURED ||
-                    instance.state == DataSourceInstance::STARTING ||
-                    instance.state == DataSourceInstance::STARTED);
-    StopDataSourceInstance(producer, tracing_session, &instance,
-                           disable_immediately);
-  }
-
-  // If the periodic task is running, we can stop the periodic snapshot timer
-  // here instead of waiting until FreeBuffers to prevent useless snapshots
-  // which won't be read.
-  tracing_session->snapshot_periodic_task.Reset();
-
-  // Either this request is flagged with |disable_immediately| or there are no
-  // data sources that are requesting a final handshake. In both cases just mark
-  // the session as disabled immediately, notify the consumer and flush the
-  // trace file (if used).
-  if (tracing_session->AllDataSourceInstancesStopped())
-    return DisableTracingNotifyConsumerAndFlushFile(tracing_session);
-
-  tracing_session->state = TracingSession::DISABLING_WAITING_STOP_ACKS;
-  auto weak_this = weak_ptr_factory_.GetWeakPtr();
-  task_runner_->PostDelayedTask(
-      [weak_this, tsid] {
-        if (weak_this)
-          weak_this->OnDisableTracingTimeout(tsid);
-      },
-      tracing_session->data_source_stop_timeout_ms());
-
-  // Deliberately NOT removing the session from |tracing_session_|, it's still
-  // needed to call ReadBuffers(). FreeBuffers() will erase() the session.
-}
-
-void TracingServiceImpl::NotifyDataSourceStarted(
-    ProducerID producer_id,
-    DataSourceInstanceID instance_id) {
-  PERFETTO_DCHECK_THREAD(thread_checker_);
-  for (auto& kv : tracing_sessions_) {
-    TracingSession& tracing_session = kv.second;
-    DataSourceInstance* instance =
-        tracing_session.GetDataSourceInstance(producer_id, instance_id);
-
-    if (!instance)
-      continue;
-
-    // If the tracing session was already stopped, ignore this notification.
-    if (tracing_session.state != TracingSession::STARTED)
-      continue;
-
-    if (instance->state != DataSourceInstance::STARTING) {
-      PERFETTO_ELOG("Started data source instance in incorrect state: %d",
-                    instance->state);
-      continue;
-    }
-
-    instance->state = DataSourceInstance::STARTED;
-
-    ProducerEndpointImpl* producer = GetProducer(producer_id);
-    PERFETTO_DCHECK(producer);
-    if (tracing_session.consumer_maybe_null) {
-      tracing_session.consumer_maybe_null->OnDataSourceInstanceStateChange(
-          *producer, *instance);
-    }
-
-    // If all data sources are started, notify the consumer.
-    MaybeNotifyAllDataSourcesStarted(&tracing_session);
-  }  // for (tracing_session)
-}
-
-void TracingServiceImpl::MaybeNotifyAllDataSourcesStarted(
-    TracingSession* tracing_session) {
-  if (!tracing_session->consumer_maybe_null)
-    return;
-
-  if (!tracing_session->AllDataSourceInstancesStarted())
-    return;
-
-  // In some rare cases, we can get in this state more than once. Consider the
-  // following scenario: 3 data sources are registered -> trace starts ->
-  // all 3 data sources ack -> OnAllDataSourcesStarted() is called.
-  // Imagine now that a 4th data source registers while the trace is ongoing.
-  // This would hit the AllDataSourceInstancesStarted() condition again.
-  // In this case, however, we don't want to re-notify the consumer again.
-  // That would be unexpected (even if, perhaps, technically correct) and
-  // trigger bugs in the consumer.
-  if (tracing_session->did_notify_all_data_source_started)
-    return;
-
-  PERFETTO_DLOG("All data sources started");
-
-  SnapshotLifecyleEvent(
-      tracing_session,
-      protos::pbzero::TracingServiceEvent::kAllDataSourcesStartedFieldNumber,
-      true /* snapshot_clocks */);
-
-  tracing_session->did_notify_all_data_source_started = true;
-  tracing_session->consumer_maybe_null->OnAllDataSourcesStarted();
-}
-
-void TracingServiceImpl::NotifyDataSourceStopped(
-    ProducerID producer_id,
-    DataSourceInstanceID instance_id) {
-  PERFETTO_DCHECK_THREAD(thread_checker_);
-  for (auto& kv : tracing_sessions_) {
-    TracingSession& tracing_session = kv.second;
-    DataSourceInstance* instance =
-        tracing_session.GetDataSourceInstance(producer_id, instance_id);
-
-    if (!instance)
-      continue;
-
-    if (instance->state != DataSourceInstance::STOPPING) {
-      PERFETTO_ELOG("Stopped data source instance in incorrect state: %d",
-                    instance->state);
-      continue;
-    }
-
-    instance->state = DataSourceInstance::STOPPED;
-
-    ProducerEndpointImpl* producer = GetProducer(producer_id);
-    PERFETTO_DCHECK(producer);
-    if (tracing_session.consumer_maybe_null) {
-      tracing_session.consumer_maybe_null->OnDataSourceInstanceStateChange(
-          *producer, *instance);
-    }
-
-    if (!tracing_session.AllDataSourceInstancesStopped())
-      continue;
-
-    if (tracing_session.state != TracingSession::DISABLING_WAITING_STOP_ACKS)
-      continue;
-
-    // All data sources acked the termination.
-    DisableTracingNotifyConsumerAndFlushFile(&tracing_session);
-  }  // for (tracing_session)
-}
-
-void TracingServiceImpl::ActivateTriggers(
-    ProducerID producer_id,
-    const std::vector<std::string>& triggers) {
-  PERFETTO_DCHECK_THREAD(thread_checker_);
-  auto* producer = GetProducer(producer_id);
-  PERFETTO_DCHECK(producer);
-
-  int64_t now_ns = base::GetBootTimeNs().count();
-  for (const auto& trigger_name : triggers) {
-    PERFETTO_DLOG("Received ActivateTriggers request for \"%s\"",
-                  trigger_name.c_str());
-    base::Hash hash;
-    hash.Update(trigger_name.c_str(), trigger_name.size());
-
-    uint64_t trigger_name_hash = hash.digest();
-    size_t count_in_window =
-        PurgeExpiredAndCountTriggerInWindow(now_ns, trigger_name_hash);
-
-    bool trigger_applied = false;
-    for (auto& id_and_tracing_session : tracing_sessions_) {
-      auto& tracing_session = id_and_tracing_session.second;
-      TracingSessionID tsid = id_and_tracing_session.first;
-      auto iter = std::find_if(
-          tracing_session.config.trigger_config().triggers().begin(),
-          tracing_session.config.trigger_config().triggers().end(),
-          [&trigger_name](const TraceConfig::TriggerConfig::Trigger& trigger) {
-            return trigger.name() == trigger_name;
-          });
-      if (iter == tracing_session.config.trigger_config().triggers().end()) {
-        continue;
-      }
-
-      // If this trigger requires a certain producer to have sent it
-      // (non-empty producer_name()) ensure the producer who sent this trigger
-      // matches.
-      if (!iter->producer_name_regex().empty() &&
-          !std::regex_match(
-              producer->name_,
-              std::regex(iter->producer_name_regex(), std::regex::extended))) {
-        continue;
-      }
-
-      // Use a random number between 0 and 1 to check if we should allow this
-      // trigger through or not.
-      double trigger_rnd =
-          trigger_rnd_override_for_testing_ > 0
-              ? trigger_rnd_override_for_testing_
-              : trigger_probability_dist_(trigger_probability_rand_);
-      PERFETTO_DCHECK(trigger_rnd >= 0 && trigger_rnd < 1);
-      if (trigger_rnd < iter->skip_probability()) {
-        MaybeLogTriggerEvent(tracing_session.config,
-                             PerfettoTriggerAtom::kTracedLimitProbability,
-                             trigger_name);
-        continue;
-      }
-
-      // If we already triggered more times than the limit, silently ignore
-      // this trigger.
-      if (iter->max_per_24_h() > 0 && count_in_window >= iter->max_per_24_h()) {
-        MaybeLogTriggerEvent(tracing_session.config,
-                             PerfettoTriggerAtom::kTracedLimitMaxPer24h,
-                             trigger_name);
-        continue;
-      }
-      trigger_applied = true;
-
-      const bool triggers_already_received =
-          !tracing_session.received_triggers.empty();
-      tracing_session.received_triggers.push_back(
-          {static_cast<uint64_t>(now_ns), iter->name(), producer->name_,
-           producer->uid_});
-      auto weak_this = weak_ptr_factory_.GetWeakPtr();
-      switch (tracing_session.config.trigger_config().trigger_mode()) {
-        case TraceConfig::TriggerConfig::START_TRACING:
-          // If the session has already been triggered and moved past
-          // CONFIGURED then we don't need to repeat StartTracing. This would
-          // work fine (StartTracing would return false) but would add error
-          // logs.
-          if (tracing_session.state != TracingSession::CONFIGURED)
-            break;
-
-          PERFETTO_DLOG("Triggering '%s' on tracing session %" PRIu64
-                        " with duration of %" PRIu32 "ms.",
-                        iter->name().c_str(), tsid, iter->stop_delay_ms());
-          MaybeLogUploadEvent(tracing_session.config,
-                              PerfettoStatsdAtom::kTracedTriggerStartTracing,
-                              iter->name());
-
-          // We override the trace duration to be the trigger's requested
-          // value, this ensures that the trace will end after this amount
-          // of time has passed.
-          tracing_session.config.set_duration_ms(iter->stop_delay_ms());
-          StartTracing(tsid);
-          break;
-        case TraceConfig::TriggerConfig::STOP_TRACING:
-          // Only stop the trace once to avoid confusing log messages. I.E.
-          // when we've already hit the first trigger we've already Posted the
-          // task to FlushAndDisable. So all future triggers will just break
-          // out.
-          if (triggers_already_received)
-            break;
-
-          PERFETTO_DLOG("Triggering '%s' on tracing session %" PRIu64
-                        " with duration of %" PRIu32 "ms.",
-                        iter->name().c_str(), tsid, iter->stop_delay_ms());
-          MaybeLogUploadEvent(tracing_session.config,
-                              PerfettoStatsdAtom::kTracedTriggerStopTracing,
-                              iter->name());
-
-          // Now that we've seen a trigger we need to stop, flush, and disable
-          // this session after the configured |stop_delay_ms|.
-          task_runner_->PostDelayedTask(
-              [weak_this, tsid] {
-                // Skip entirely the flush if the trace session doesn't exist
-                // anymore. This is to prevent misleading error messages to be
-                // logged.
-                if (weak_this && weak_this->GetTracingSession(tsid))
-                  weak_this->FlushAndDisableTracing(tsid);
-              },
-              // If this trigger is zero this will immediately executable and
-              // will happen shortly.
-              iter->stop_delay_ms());
-          break;
-        case TraceConfig::TriggerConfig::UNSPECIFIED:
-          PERFETTO_ELOG("Trigger activated but trigger mode unspecified.");
-          break;
-      }
-    }  // for (.. : tracing_sessions_)
-
-    if (trigger_applied) {
-      trigger_history_.emplace_back(TriggerHistory{now_ns, trigger_name_hash});
-    }
-  }
-}
-
-// Always invoked kDataSourceStopTimeoutMs after DisableTracing(). In nominal
-// conditions all data sources should have acked the stop and this will early
-// out.
-void TracingServiceImpl::OnDisableTracingTimeout(TracingSessionID tsid) {
-  PERFETTO_DCHECK_THREAD(thread_checker_);
-  TracingSession* tracing_session = GetTracingSession(tsid);
-  if (!tracing_session ||
-      tracing_session->state != TracingSession::DISABLING_WAITING_STOP_ACKS) {
-    return;  // Tracing session was successfully disabled.
-  }
-
-  PERFETTO_ILOG("Timeout while waiting for ACKs for tracing session %" PRIu64,
-                tsid);
-  PERFETTO_DCHECK(!tracing_session->AllDataSourceInstancesStopped());
-  DisableTracingNotifyConsumerAndFlushFile(tracing_session);
-}
-
-void TracingServiceImpl::DisableTracingNotifyConsumerAndFlushFile(
-    TracingSession* tracing_session) {
-  PERFETTO_DCHECK(tracing_session->state != TracingSession::DISABLED);
-  for (auto& inst_kv : tracing_session->data_source_instances) {
-    if (inst_kv.second.state == DataSourceInstance::STOPPED)
-      continue;
-    inst_kv.second.state = DataSourceInstance::STOPPED;
-    ProducerEndpointImpl* producer = GetProducer(inst_kv.first);
-    PERFETTO_DCHECK(producer);
-    if (tracing_session->consumer_maybe_null) {
-      tracing_session->consumer_maybe_null->OnDataSourceInstanceStateChange(
-          *producer, inst_kv.second);
-    }
-  }
-  tracing_session->state = TracingSession::DISABLED;
-
-  // Scrape any remaining chunks that weren't flushed by the producers.
-  for (auto& producer_id_and_producer : producers_)
-    ScrapeSharedMemoryBuffers(tracing_session, producer_id_and_producer.second);
-
-  SnapshotLifecyleEvent(
-      tracing_session,
-      protos::pbzero::TracingServiceEvent::kTracingDisabledFieldNumber,
-      true /* snapshot_clocks */);
-
-  if (tracing_session->write_into_file) {
-    tracing_session->write_period_ms = 0;
-    ReadBuffers(tracing_session->id, nullptr);
-  }
-
-  if (tracing_session->on_disable_callback_for_bugreport) {
-    std::move(tracing_session->on_disable_callback_for_bugreport)();
-    tracing_session->on_disable_callback_for_bugreport = nullptr;
-  }
-
-  MaybeLogUploadEvent(tracing_session->config,
-                      PerfettoStatsdAtom::kTracedNotifyTracingDisabled);
-
-  if (tracing_session->consumer_maybe_null)
-    tracing_session->consumer_maybe_null->NotifyOnTracingDisabled("");
-}
-
-void TracingServiceImpl::Flush(TracingSessionID tsid,
-                               uint32_t timeout_ms,
-                               ConsumerEndpoint::FlushCallback callback) {
-  PERFETTO_DCHECK_THREAD(thread_checker_);
-  TracingSession* tracing_session = GetTracingSession(tsid);
-  if (!tracing_session) {
-    PERFETTO_DLOG("Flush() failed, invalid session ID %" PRIu64, tsid);
-    return;
-  }
-
-  if (!timeout_ms)
-    timeout_ms = tracing_session->flush_timeout_ms();
-
-  if (tracing_session->pending_flushes.size() > 1000) {
-    PERFETTO_ELOG("Too many flushes (%zu) pending for the tracing session",
-                  tracing_session->pending_flushes.size());
-    callback(false);
-    return;
-  }
-
-  FlushRequestID flush_request_id = ++last_flush_request_id_;
-  PendingFlush& pending_flush =
-      tracing_session->pending_flushes
-          .emplace_hint(tracing_session->pending_flushes.end(),
-                        flush_request_id, PendingFlush(std::move(callback)))
-          ->second;
-
-  // Send a flush request to each producer involved in the tracing session. In
-  // order to issue a flush request we have to build a map of all data source
-  // instance ids enabled for each producer.
-  std::map<ProducerID, std::vector<DataSourceInstanceID>> flush_map;
-  for (const auto& data_source_inst : tracing_session->data_source_instances) {
-    const ProducerID producer_id = data_source_inst.first;
-    const DataSourceInstanceID ds_inst_id = data_source_inst.second.instance_id;
-    flush_map[producer_id].push_back(ds_inst_id);
-  }
-
-  for (const auto& kv : flush_map) {
-    ProducerID producer_id = kv.first;
-    ProducerEndpointImpl* producer = GetProducer(producer_id);
-    const std::vector<DataSourceInstanceID>& data_sources = kv.second;
-    producer->Flush(flush_request_id, data_sources);
-    pending_flush.producers.insert(producer_id);
-  }
-
-  // If there are no producers to flush (realistically this happens only in
-  // some tests) fire OnFlushTimeout() straight away, without waiting.
-  if (flush_map.empty())
-    timeout_ms = 0;
-
-  auto weak_this = weak_ptr_factory_.GetWeakPtr();
-  task_runner_->PostDelayedTask(
-      [weak_this, tsid, flush_request_id] {
-        if (weak_this)
-          weak_this->OnFlushTimeout(tsid, flush_request_id);
-      },
-      timeout_ms);
-}
-
-void TracingServiceImpl::NotifyFlushDoneForProducer(
-    ProducerID producer_id,
-    FlushRequestID flush_request_id) {
-  for (auto& kv : tracing_sessions_) {
-    // Remove all pending flushes <= |flush_request_id| for |producer_id|.
-    auto& pending_flushes = kv.second.pending_flushes;
-    auto end_it = pending_flushes.upper_bound(flush_request_id);
-    for (auto it = pending_flushes.begin(); it != end_it;) {
-      PendingFlush& pending_flush = it->second;
-      pending_flush.producers.erase(producer_id);
-      if (pending_flush.producers.empty()) {
-        auto weak_this = weak_ptr_factory_.GetWeakPtr();
-        TracingSessionID tsid = kv.first;
-        auto callback = std::move(pending_flush.callback);
-        task_runner_->PostTask([weak_this, tsid, callback]() {
-          if (weak_this) {
-            weak_this->CompleteFlush(tsid, std::move(callback),
-                                     /*success=*/true);
-          }
-        });
-        it = pending_flushes.erase(it);
-      } else {
-        it++;
-      }
-    }  // for (pending_flushes)
-  }    // for (tracing_session)
-}
-
-void TracingServiceImpl::OnFlushTimeout(TracingSessionID tsid,
-                                        FlushRequestID flush_request_id) {
-  TracingSession* tracing_session = GetTracingSession(tsid);
-  if (!tracing_session)
-    return;
-  auto it = tracing_session->pending_flushes.find(flush_request_id);
-  if (it == tracing_session->pending_flushes.end())
-    return;  // Nominal case: flush was completed and acked on time.
-
-  // If there were no producers to flush, consider it a success.
-  bool success = it->second.producers.empty();
-
-  auto callback = std::move(it->second.callback);
-  tracing_session->pending_flushes.erase(it);
-  CompleteFlush(tsid, std::move(callback), success);
-}
-
-void TracingServiceImpl::CompleteFlush(TracingSessionID tsid,
-                                       ConsumerEndpoint::FlushCallback callback,
-                                       bool success) {
-  TracingSession* tracing_session = GetTracingSession(tsid);
-  if (!tracing_session) {
-    callback(false);
-    return;
-  }
-  // Producers may not have been able to flush all their data, even if they
-  // indicated flush completion. If possible, also collect uncommitted chunks
-  // to make sure we have everything they wrote so far.
-  for (auto& producer_id_and_producer : producers_) {
-    ScrapeSharedMemoryBuffers(tracing_session, producer_id_and_producer.second);
-  }
-  SnapshotLifecyleEvent(
-      tracing_session,
-      protos::pbzero::TracingServiceEvent::kAllDataSourcesFlushedFieldNumber,
-      true /* snapshot_clocks */);
-  callback(success);
-}
-
-void TracingServiceImpl::ScrapeSharedMemoryBuffers(
-    TracingSession* tracing_session,
-    ProducerEndpointImpl* producer) {
-  if (!producer->smb_scraping_enabled_)
-    return;
-
-  // Can't copy chunks if we don't know about any trace writers.
-  if (producer->writers_.empty())
-    return;
-
-  // Performance optimization: On flush or session disconnect, this method is
-  // called for each producer. If the producer doesn't participate in the
-  // session, there's no need to scape its chunks right now. We can tell if a
-  // producer participates in the session by checking if the producer is allowed
-  // to write into the session's log buffers.
-  const auto& session_buffers = tracing_session->buffers_index;
-  bool producer_in_session =
-      std::any_of(session_buffers.begin(), session_buffers.end(),
-                  [producer](BufferID buffer_id) {
-                    return producer->allowed_target_buffers_.count(buffer_id);
-                  });
-  if (!producer_in_session)
-    return;
-
-  PERFETTO_DLOG("Scraping SMB for producer %" PRIu16, producer->id_);
-
-  // Find and copy any uncommitted chunks from the SMB.
-  //
-  // In nominal conditions, the page layout of the used SMB pages should never
-  // change because the service is the only one who is supposed to modify used
-  // pages (to make them free again).
-  //
-  // However, the code here needs to deal with the case of a malicious producer
-  // altering the SMB in unpredictable ways. Thankfully the SMB size is
-  // immutable, so a chunk will always point to some valid memory, even if the
-  // producer alters the intended layout and chunk header concurrently.
-  // Ultimately a malicious producer altering the SMB's chunk layout while we
-  // are iterating in this function is not any different from the case of a
-  // malicious producer asking to commit a chunk made of random data, which is
-  // something this class has to deal with regardless.
-  //
-  // The only legitimate mutations that can happen from sane producers,
-  // concurrently to this function, are:
-  //   A. free pages being partitioned,
-  //   B. free chunks being migrated to kChunkBeingWritten,
-  //   C. kChunkBeingWritten chunks being migrated to kChunkCompleted.
-
-  SharedMemoryABI* abi = &producer->shmem_abi_;
-  // num_pages() is immutable after the SMB is initialized and cannot be changed
-  // even by a producer even if malicious.
-  for (size_t page_idx = 0; page_idx < abi->num_pages(); page_idx++) {
-    uint32_t layout = abi->GetPageLayout(page_idx);
-
-    uint32_t used_chunks = abi->GetUsedChunks(layout);  // Returns a bitmap.
-    // Skip empty pages.
-    if (used_chunks == 0)
-      continue;
-
-    // Scrape the chunks that are currently used. These should be either in
-    // state kChunkBeingWritten or kChunkComplete.
-    for (uint32_t chunk_idx = 0; used_chunks; chunk_idx++, used_chunks >>= 1) {
-      if (!(used_chunks & 1))
-        continue;
-
-      SharedMemoryABI::ChunkState state =
-          SharedMemoryABI::GetChunkStateFromLayout(layout, chunk_idx);
-      PERFETTO_DCHECK(state == SharedMemoryABI::kChunkBeingWritten ||
-                      state == SharedMemoryABI::kChunkComplete);
-      bool chunk_complete = state == SharedMemoryABI::kChunkComplete;
-
-      SharedMemoryABI::Chunk chunk =
-          abi->GetChunkUnchecked(page_idx, layout, chunk_idx);
-
-      uint16_t packet_count;
-      uint8_t flags;
-      // GetPacketCountAndFlags has acquire_load semantics.
-      std::tie(packet_count, flags) = chunk.GetPacketCountAndFlags();
-
-      // It only makes sense to copy an incomplete chunk if there's at least
-      // one full packet available. (The producer may not have completed the
-      // last packet in it yet, so we need at least 2.)
-      if (!chunk_complete && packet_count < 2)
-        continue;
-
-      // At this point, it is safe to access the remaining header fields of
-      // the chunk. Even if the chunk was only just transferred from
-      // kChunkFree into kChunkBeingWritten state, the header should be
-      // written completely once the packet count increased above 1 (it was
-      // reset to 0 by the service when the chunk was freed).
-
-      WriterID writer_id = chunk.writer_id();
-      base::Optional<BufferID> target_buffer_id =
-          producer->buffer_id_for_writer(writer_id);
-
-      // We can only scrape this chunk if we know which log buffer to copy it
-      // into.
-      if (!target_buffer_id)
-        continue;
-
-      // Skip chunks that don't belong to the requested tracing session.
-      bool target_buffer_belongs_to_session =
-          std::find(session_buffers.begin(), session_buffers.end(),
-                    *target_buffer_id) != session_buffers.end();
-      if (!target_buffer_belongs_to_session)
-        continue;
-
-      uint32_t chunk_id =
-          chunk.header()->chunk_id.load(std::memory_order_relaxed);
-
-      CopyProducerPageIntoLogBuffer(
-          producer->id_, producer->uid_, writer_id, chunk_id, *target_buffer_id,
-          packet_count, flags, chunk_complete, chunk.payload_begin(),
-          chunk.payload_size());
-    }
-  }
-}
-
-void TracingServiceImpl::FlushAndDisableTracing(TracingSessionID tsid) {
-  PERFETTO_DCHECK_THREAD(thread_checker_);
-  PERFETTO_DLOG("Triggering final flush for %" PRIu64, tsid);
-  auto weak_this = weak_ptr_factory_.GetWeakPtr();
-  Flush(tsid, 0, [weak_this, tsid](bool success) {
-    // This was a DLOG up to Jun 2021 (v16, Android S).
-    PERFETTO_LOG("FlushAndDisableTracing(%" PRIu64 ") done, success=%d", tsid,
-                 success);
-    if (!weak_this)
-      return;
-    TracingSession* session = weak_this->GetTracingSession(tsid);
-    if (session->consumer_maybe_null) {
-      // If the consumer is still attached, just disable the session but give it
-      // a chance to read the contents.
-      weak_this->DisableTracing(tsid);
-    } else {
-      // If the consumer detached, destroy the session. If the consumer did
-      // start the session in long-tracing mode, the service will have saved
-      // the contents to the passed file. If not, the contents will be
-      // destroyed.
-      weak_this->FreeBuffers(tsid);
-    }
-  });
-}
-
-void TracingServiceImpl::PeriodicFlushTask(TracingSessionID tsid,
-                                           bool post_next_only) {
-  PERFETTO_DCHECK_THREAD(thread_checker_);
-  TracingSession* tracing_session = GetTracingSession(tsid);
-  if (!tracing_session || tracing_session->state != TracingSession::STARTED)
-    return;
-
-  uint32_t flush_period_ms = tracing_session->config.flush_period_ms();
-  auto weak_this = weak_ptr_factory_.GetWeakPtr();
-  task_runner_->PostDelayedTask(
-      [weak_this, tsid] {
-        if (weak_this)
-          weak_this->PeriodicFlushTask(tsid, /*post_next_only=*/false);
-      },
-      flush_period_ms - static_cast<uint32_t>(base::GetWallTimeMs().count() %
-                                              flush_period_ms));
-
-  if (post_next_only)
-    return;
-
-  PERFETTO_DLOG("Triggering periodic flush for trace session %" PRIu64, tsid);
-  Flush(tsid, 0, [](bool success) {
-    if (!success)
-      PERFETTO_ELOG("Periodic flush timed out");
-  });
-}
-
-void TracingServiceImpl::PeriodicClearIncrementalStateTask(
-    TracingSessionID tsid,
-    bool post_next_only) {
-  PERFETTO_DCHECK_THREAD(thread_checker_);
-  TracingSession* tracing_session = GetTracingSession(tsid);
-  if (!tracing_session || tracing_session->state != TracingSession::STARTED)
-    return;
-
-  uint32_t clear_period_ms =
-      tracing_session->config.incremental_state_config().clear_period_ms();
-  auto weak_this = weak_ptr_factory_.GetWeakPtr();
-  task_runner_->PostDelayedTask(
-      [weak_this, tsid] {
-        if (weak_this)
-          weak_this->PeriodicClearIncrementalStateTask(
-              tsid, /*post_next_only=*/false);
-      },
-      clear_period_ms - static_cast<uint32_t>(base::GetWallTimeMs().count() %
-                                              clear_period_ms));
-
-  if (post_next_only)
-    return;
-
-  PERFETTO_DLOG(
-      "Performing periodic incremental state clear for trace session %" PRIu64,
-      tsid);
-
-  // Queue the IPCs to producers with active data sources that opted in.
-  std::map<ProducerID, std::vector<DataSourceInstanceID>> clear_map;
-  for (const auto& kv : tracing_session->data_source_instances) {
-    ProducerID producer_id = kv.first;
-    const DataSourceInstance& data_source = kv.second;
-    if (data_source.handles_incremental_state_clear)
-      clear_map[producer_id].push_back(data_source.instance_id);
-  }
-
-  for (const auto& kv : clear_map) {
-    ProducerID producer_id = kv.first;
-    const std::vector<DataSourceInstanceID>& data_sources = kv.second;
-    ProducerEndpointImpl* producer = GetProducer(producer_id);
-    if (!producer) {
-      PERFETTO_DFATAL("Producer does not exist.");
-      continue;
-    }
-    producer->ClearIncrementalState(data_sources);
-  }
-}
-
-// Note: when this is called to write into a file passed when starting tracing
-// |consumer| will be == nullptr (as opposite to the case of a consumer asking
-// to send the trace data back over IPC).
-bool TracingServiceImpl::ReadBuffers(TracingSessionID tsid,
-                                     ConsumerEndpointImpl* consumer) {
-  PERFETTO_DCHECK_THREAD(thread_checker_);
-  TracingSession* tracing_session = GetTracingSession(tsid);
-  if (!tracing_session) {
-    // This will be hit systematically from the PostDelayedTask when directly
-    // writing into the file (in which case consumer == nullptr). Suppress the
-    // log in this case as it's just spam.
-    if (consumer) {
-      PERFETTO_DLOG("Cannot ReadBuffers(): no tracing session is active");
-    }
-    return false;
-  }
-
-  // When a tracing session is waiting for a trigger it is considered empty. If
-  // a tracing session finishes and moves into DISABLED without ever receiving a
-  // trigger the trace should never return any data. This includes the synthetic
-  // packets like TraceConfig and Clock snapshots. So we bail out early and let
-  // the consumer know there is no data.
-  if (!tracing_session->config.trigger_config().triggers().empty() &&
-      tracing_session->received_triggers.empty() &&
-      !tracing_session->seized_for_bugreport) {
-    PERFETTO_DLOG(
-        "ReadBuffers(): tracing session has not received a trigger yet.");
-    return false;
-  }
-
-  // This can happen if the file is closed by a previous task because it reaches
-  // |max_file_size_bytes|.
-  if (!tracing_session->write_into_file && !consumer)
-    return false;
-
-  if (tracing_session->write_into_file && consumer) {
-    // If the consumer enabled tracing and asked to save the contents into the
-    // passed file makes little sense to also try to read the buffers over IPC,
-    // as that would just steal data from the periodic draining task.
-    PERFETTO_ELOG("Consumer trying to read from write_into_file session.");
-    return false;
-  }
-
-  std::vector<TracePacket> packets;
-  packets.reserve(1024);  // Just an educated guess to avoid trivial expansions.
-
-  // If a bugreport request happened and the trace was stolen for that, give
-  // an empty trace with a clear signal to the consumer. This deals only with
-  // the case of readback-from-IPC. A similar code-path deals with the
-  // write_into_file case in MaybeSaveTraceForBugreport().
-  if (tracing_session->seized_for_bugreport && consumer) {
-    if (!tracing_session->config.builtin_data_sources()
-             .disable_service_events()) {
-      EmitSeizedForBugreportLifecycleEvent(&packets);
-    }
-    EmitLifecycleEvents(tracing_session, &packets);
-    consumer->consumer_->OnTraceData(std::move(packets), /*has_more=*/false);
-    return true;
-  }
-
-  if (!tracing_session->initial_clock_snapshot.empty()) {
-    EmitClockSnapshot(tracing_session,
-                      std::move(tracing_session->initial_clock_snapshot),
-                      &packets);
-  }
-
-  for (auto& snapshot : tracing_session->clock_snapshot_ring_buffer) {
-    PERFETTO_DCHECK(!snapshot.empty());
-    EmitClockSnapshot(tracing_session, std::move(snapshot), &packets);
-  }
-  tracing_session->clock_snapshot_ring_buffer.clear();
-
-  if (tracing_session->should_emit_sync_marker) {
-    EmitSyncMarker(&packets);
-    tracing_session->should_emit_sync_marker = false;
-  }
-
-  if (!tracing_session->config.builtin_data_sources().disable_trace_config()) {
-    MaybeEmitTraceConfig(tracing_session, &packets);
-    MaybeEmitReceivedTriggers(tracing_session, &packets);
-  }
-  if (!tracing_session->config.builtin_data_sources().disable_system_info())
-    MaybeEmitSystemInfo(tracing_session, &packets);
-
-  // Note that in the proto comment, we guarantee that the tracing_started
-  // lifecycle event will be emitted before any data packets so make sure to
-  // keep this before reading the tracing buffers.
-  if (!tracing_session->config.builtin_data_sources().disable_service_events())
-    EmitLifecycleEvents(tracing_session, &packets);
-
-  size_t packets_bytes = 0;  // SUM(slice.size() for each slice in |packets|).
-  size_t total_slices = 0;   // SUM(#slices in |packets|).
-
-  // Add up size for packets added by the Maybe* calls above.
-  for (const TracePacket& packet : packets) {
-    packets_bytes += packet.size();
-    total_slices += packet.slices().size();
-  }
-
-  // This is a rough threshold to determine how much to read from the buffer in
-  // each task. This is to avoid executing a single huge sending task for too
-  // long and risk to hit the watchdog. This is *not* an upper bound: we just
-  // stop accumulating new packets and PostTask *after* we cross this threshold.
-  // This constant essentially balances the PostTask and IPC overhead vs the
-  // responsiveness of the service. An extremely small value will cause one IPC
-  // and one PostTask for each slice but will keep the service extremely
-  // responsive. An extremely large value will batch the send for the full
-  // buffer in one large task, will hit the blocking send() once the socket
-  // buffers are full and hang the service for a bit (until the consumer
-  // catches up).
-  static constexpr size_t kApproxBytesPerTask = 32768;
-  bool did_hit_threshold = false;
-
-  // TODO(primiano): Extend the ReadBuffers API to allow reading only some
-  // buffers, not all of them in one go.
-  for (size_t buf_idx = 0;
-       buf_idx < tracing_session->num_buffers() && !did_hit_threshold;
-       buf_idx++) {
-    auto tbuf_iter = buffers_.find(tracing_session->buffers_index[buf_idx]);
-    if (tbuf_iter == buffers_.end()) {
-      PERFETTO_DFATAL("Buffer not found.");
-      continue;
-    }
-    TraceBuffer& tbuf = *tbuf_iter->second;
-    tbuf.BeginRead();
-    while (!did_hit_threshold) {
-      TracePacket packet;
-      TraceBuffer::PacketSequenceProperties sequence_properties{};
-      bool previous_packet_dropped;
-      if (!tbuf.ReadNextTracePacket(&packet, &sequence_properties,
-                                    &previous_packet_dropped)) {
-        break;
-      }
-      PERFETTO_DCHECK(sequence_properties.producer_id_trusted != 0);
-      PERFETTO_DCHECK(sequence_properties.writer_id != 0);
-      PERFETTO_DCHECK(sequence_properties.producer_uid_trusted != kInvalidUid);
-      PERFETTO_DCHECK(packet.size() > 0);
-      if (!PacketStreamValidator::Validate(packet.slices())) {
-        tracing_session->invalid_packets++;
-        PERFETTO_DLOG("Dropping invalid packet");
-        continue;
-      }
-
-      // Append a slice with the trusted field data. This can't be spoofed
-      // because above we validated that the existing slices don't contain any
-      // trusted fields. For added safety we append instead of prepending
-      // because according to protobuf semantics, if the same field is
-      // encountered multiple times the last instance takes priority. Note that
-      // truncated packets are also rejected, so the producer can't give us a
-      // partial packet (e.g., a truncated string) which only becomes valid when
-      // the trusted data is appended here.
-      Slice slice = Slice::Allocate(32);
-      protozero::StaticBuffered<protos::pbzero::TracePacket> trusted_packet(
-          slice.own_data(), slice.size);
-      trusted_packet->set_trusted_uid(
-          static_cast<int32_t>(sequence_properties.producer_uid_trusted));
-      trusted_packet->set_trusted_packet_sequence_id(
-          tracing_session->GetPacketSequenceID(
-              sequence_properties.producer_id_trusted,
-              sequence_properties.writer_id));
-      if (previous_packet_dropped)
-        trusted_packet->set_previous_packet_dropped(previous_packet_dropped);
-      slice.size = trusted_packet.Finalize();
-      packet.AddSlice(std::move(slice));
-
-      // Append the packet (inclusive of the trusted uid) to |packets|.
-      packets_bytes += packet.size();
-      total_slices += packet.slices().size();
-      did_hit_threshold = packets_bytes >= kApproxBytesPerTask &&
-                          !tracing_session->write_into_file;
-      packets.emplace_back(std::move(packet));
-    }  // for(packets...)
-  }    // for(buffers...)
-
-  const bool has_more = did_hit_threshold;
-
-  size_t prev_packets_size = packets.size();
-  if (!tracing_session->config.builtin_data_sources()
-           .disable_service_events()) {
-    // We don't bother snapshotting clocks here because we wouldn't be able to
-    // emit it and we shouldn't have significant drift from the last snapshot in
-    // any case.
-    SnapshotLifecyleEvent(tracing_session,
-                          protos::pbzero::TracingServiceEvent::
-                              kReadTracingBuffersCompletedFieldNumber,
-                          false /* snapshot_clocks */);
-    EmitLifecycleEvents(tracing_session, &packets);
-  }
-
-  // Only emit the stats when there is no more trace data is available to read.
-  // That way, any problems that occur while reading from the buffers are
-  // reflected in the emitted stats. This is particularly important for use
-  // cases where ReadBuffers is only ever called after the tracing session is
-  // stopped.
-  if (!has_more && tracing_session->should_emit_stats) {
-    EmitStats(tracing_session, &packets);
-    tracing_session->should_emit_stats = false;
-  }
-
-  // Add sizes of packets emitted by the EmitLifecycleEvents + EmitStats.
-  for (size_t i = prev_packets_size; i < packets.size(); ++i) {
-    packets_bytes += packets[i].size();
-    total_slices += packets[i].slices().size();
-  }
-
-  // +-------------------------------------------------------------------------+
-  // | NO MORE CHANGES TO |packets| AFTER THIS POINT.                          |
-  // +-------------------------------------------------------------------------+
-
-  // If the tracing session specified a filter, run all packets through the
-  // filter and replace them with the filter results.
-  // The process below mantains the cardinality of input packets. Even if an
-  // entire packet is filtered out, we emit a zero-sized TracePacket proto. That
-  // makes debugging and reasoning about the trace stats easier.
-  // This place swaps the contents of each |packets| entry in place.
-  if (tracing_session->trace_filter) {
-    auto& trace_filter = *tracing_session->trace_filter;
-    // The filter root shoud be reset from protos.Trace to protos.TracePacket
-    // by the earlier call to SetFilterRoot() in EnableTracing().
-    PERFETTO_DCHECK(trace_filter.root_msg_index() != 0);
-    std::vector<protozero::MessageFilter::InputSlice> filter_input;
-    for (auto it = packets.begin(); it != packets.end(); ++it) {
-      const auto& packet_slices = it->slices();
-      filter_input.clear();
-      filter_input.resize(packet_slices.size());
-      ++tracing_session->filter_input_packets;
-      tracing_session->filter_input_bytes += it->size();
-      for (size_t i = 0; i < packet_slices.size(); ++i)
-        filter_input[i] = {packet_slices[i].start, packet_slices[i].size};
-      auto filtered_packet = trace_filter.FilterMessageFragments(
-          &filter_input[0], filter_input.size());
-
-      // Replace the packet in-place with the filtered one (unless failed).
-      *it = TracePacket();
-      if (filtered_packet.error) {
-        ++tracing_session->filter_errors;
-        PERFETTO_DLOG("Trace packet filtering failed @ packet %" PRIu64,
-                      tracing_session->filter_input_packets);
-        continue;
-      }
-      tracing_session->filter_output_bytes += filtered_packet.size;
-      it->AddSlice(Slice::TakeOwnership(std::move(filtered_packet.data),
-                                        filtered_packet.size));
-
-    }  // for (packet)
-  }    // if (trace_filter)
-
-  // If the caller asked us to write into a file by setting
-  // |write_into_file| == true in the trace config, drain the packets read
-  // (if any) into the given file descriptor.
-  if (tracing_session->write_into_file) {
-    const uint64_t max_size = tracing_session->max_file_size_bytes
-                                  ? tracing_session->max_file_size_bytes
-                                  : std::numeric_limits<size_t>::max();
-
-    // When writing into a file, the file should look like a root trace.proto
-    // message. Each packet should be prepended with a proto preamble stating
-    // its field id (within trace.proto) and size. Hence the addition below.
-    const size_t max_iovecs = total_slices + packets.size();
-
-    size_t num_iovecs = 0;
-    bool stop_writing_into_file = tracing_session->write_period_ms == 0;
-    std::unique_ptr<struct iovec[]> iovecs(new struct iovec[max_iovecs]);
-    size_t num_iovecs_at_last_packet = 0;
-    uint64_t bytes_about_to_be_written = 0;
-    for (TracePacket& packet : packets) {
-      std::tie(iovecs[num_iovecs].iov_base, iovecs[num_iovecs].iov_len) =
-          packet.GetProtoPreamble();
-      bytes_about_to_be_written += iovecs[num_iovecs].iov_len;
-      num_iovecs++;
-      for (const Slice& slice : packet.slices()) {
-        // writev() doesn't change the passed pointer. However, struct iovec
-        // take a non-const ptr because it's the same struct used by readv().
-        // Hence the const_cast here.
-        char* start = static_cast<char*>(const_cast<void*>(slice.start));
-        bytes_about_to_be_written += slice.size;
-        iovecs[num_iovecs++] = {start, slice.size};
-      }
-
-      if (tracing_session->bytes_written_into_file +
-              bytes_about_to_be_written >=
-          max_size) {
-        stop_writing_into_file = true;
-        num_iovecs = num_iovecs_at_last_packet;
-        break;
-      }
-
-      num_iovecs_at_last_packet = num_iovecs;
-    }
-    PERFETTO_DCHECK(num_iovecs <= max_iovecs);
-    int fd = *tracing_session->write_into_file;
-
-    uint64_t total_wr_size = 0;
-
-    // writev() can take at most IOV_MAX entries per call. Batch them.
-    constexpr size_t kIOVMax = IOV_MAX;
-    for (size_t i = 0; i < num_iovecs; i += kIOVMax) {
-      int iov_batch_size = static_cast<int>(std::min(num_iovecs - i, kIOVMax));
-      ssize_t wr_size = PERFETTO_EINTR(writev(fd, &iovecs[i], iov_batch_size));
-      if (wr_size <= 0) {
-        PERFETTO_PLOG("writev() failed");
-        stop_writing_into_file = true;
-        break;
-      }
-      total_wr_size += static_cast<size_t>(wr_size);
-    }
-
-    tracing_session->bytes_written_into_file += total_wr_size;
-
-    PERFETTO_DLOG("Draining into file, written: %" PRIu64 " KB, stop: %d",
-                  (total_wr_size + 1023) / 1024, stop_writing_into_file);
-    if (stop_writing_into_file) {
-      // Ensure all data was written to the file before we close it.
-      base::FlushFile(fd);
-      tracing_session->write_into_file.reset();
-      tracing_session->write_period_ms = 0;
-      if (tracing_session->state == TracingSession::STARTED)
-        DisableTracing(tsid);
-      return true;
-    }
-
-    auto weak_this = weak_ptr_factory_.GetWeakPtr();
-    task_runner_->PostDelayedTask(
-        [weak_this, tsid] {
-          if (weak_this)
-            weak_this->ReadBuffers(tsid, nullptr);
-        },
-        tracing_session->delay_to_next_write_period_ms());
-    return true;
-  }  // if (tracing_session->write_into_file)
-
-  if (has_more) {
-    auto weak_consumer = consumer->weak_ptr_factory_.GetWeakPtr();
-    auto weak_this = weak_ptr_factory_.GetWeakPtr();
-    task_runner_->PostTask([weak_this, weak_consumer, tsid] {
-      if (!weak_this || !weak_consumer)
-        return;
-      weak_this->ReadBuffers(tsid, weak_consumer.get());
-    });
-  }
-
-  // Keep this as tail call, just in case the consumer re-enters.
-  consumer->consumer_->OnTraceData(std::move(packets), has_more);
-  return true;
-}
-
-void TracingServiceImpl::FreeBuffers(TracingSessionID tsid) {
-  PERFETTO_DCHECK_THREAD(thread_checker_);
-  PERFETTO_DLOG("Freeing buffers for session %" PRIu64, tsid);
-  TracingSession* tracing_session = GetTracingSession(tsid);
-  if (!tracing_session) {
-    PERFETTO_DLOG("FreeBuffers() failed, invalid session ID %" PRIu64, tsid);
-    return;  // TODO(primiano): signal failure?
-  }
-  DisableTracing(tsid, /*disable_immediately=*/true);
-
-  PERFETTO_DCHECK(tracing_session->AllDataSourceInstancesStopped());
-  tracing_session->data_source_instances.clear();
-
-  for (auto& producer_entry : producers_) {
-    ProducerEndpointImpl* producer = producer_entry.second;
-    producer->OnFreeBuffers(tracing_session->buffers_index);
-  }
-
-  for (BufferID buffer_id : tracing_session->buffers_index) {
-    buffer_ids_.Free(buffer_id);
-    PERFETTO_DCHECK(buffers_.count(buffer_id) == 1);
-    buffers_.erase(buffer_id);
-  }
-  bool notify_traceur = tracing_session->config.notify_traceur();
-  bool is_long_trace =
-      (tracing_session->config.write_into_file() &&
-       tracing_session->config.file_write_period_ms() < kMillisPerDay);
-  bool seized_for_bugreport = tracing_session->seized_for_bugreport;
-  tracing_sessions_.erase(tsid);
-  tracing_session = nullptr;
-  UpdateMemoryGuardrail();
-
-  PERFETTO_LOG("Tracing session %" PRIu64 " ended, total sessions:%zu", tsid,
-               tracing_sessions_.size());
-
-#if PERFETTO_BUILDFLAG(PERFETTO_ANDROID_BUILD) && \
-    PERFETTO_BUILDFLAG(PERFETTO_OS_ANDROID)
-  if (notify_traceur && (seized_for_bugreport || is_long_trace)) {
-    PERFETTO_LAZY_LOAD(android_internal::NotifyTraceSessionEnded, notify_fn);
-    if (!notify_fn || !notify_fn(seized_for_bugreport))
-      PERFETTO_ELOG("Failed to notify Traceur long tracing has ended");
-  }
-#else
-  base::ignore_result(notify_traceur);
-  base::ignore_result(is_long_trace);
-  base::ignore_result(seized_for_bugreport);
-#endif
-}
-
-void TracingServiceImpl::RegisterDataSource(ProducerID producer_id,
-                                            const DataSourceDescriptor& desc) {
-  PERFETTO_DCHECK_THREAD(thread_checker_);
-  PERFETTO_DLOG("Producer %" PRIu16 " registered data source \"%s\"",
-                producer_id, desc.name().c_str());
-
-  PERFETTO_DCHECK(!desc.name().empty());
-  auto reg_ds = data_sources_.emplace(desc.name(),
-                                      RegisteredDataSource{producer_id, desc});
-
-  // If there are existing tracing sessions, we need to check if the new
-  // data source is enabled by any of them.
-  if (tracing_sessions_.empty())
-    return;
-
-  ProducerEndpointImpl* producer = GetProducer(producer_id);
-  if (!producer) {
-    PERFETTO_DFATAL("Producer not found.");
-    return;
-  }
-
-  for (auto& iter : tracing_sessions_) {
-    TracingSession& tracing_session = iter.second;
-    if (tracing_session.state != TracingSession::STARTED &&
-        tracing_session.state != TracingSession::CONFIGURED) {
-      continue;
-    }
-
-    TraceConfig::ProducerConfig producer_config;
-    for (auto& config : tracing_session.config.producers()) {
-      if (producer->name_ == config.producer_name()) {
-        producer_config = config;
-        break;
-      }
-    }
-    for (const TraceConfig::DataSource& cfg_data_source :
-         tracing_session.config.data_sources()) {
-      if (cfg_data_source.config().name() != desc.name())
-        continue;
-      DataSourceInstance* ds_inst = SetupDataSource(
-          cfg_data_source, producer_config, reg_ds->second, &tracing_session);
-      if (ds_inst && tracing_session.state == TracingSession::STARTED)
-        StartDataSourceInstance(producer, &tracing_session, ds_inst);
-    }
-  }
-}
-
-void TracingServiceImpl::StopDataSourceInstance(ProducerEndpointImpl* producer,
-                                                TracingSession* tracing_session,
-                                                DataSourceInstance* instance,
-                                                bool disable_immediately) {
-  const DataSourceInstanceID ds_inst_id = instance->instance_id;
-  if (instance->will_notify_on_stop && !disable_immediately) {
-    instance->state = DataSourceInstance::STOPPING;
-  } else {
-    instance->state = DataSourceInstance::STOPPED;
-  }
-  if (tracing_session->consumer_maybe_null) {
-    tracing_session->consumer_maybe_null->OnDataSourceInstanceStateChange(
-        *producer, *instance);
-  }
-  producer->StopDataSource(ds_inst_id);
-}
-
-void TracingServiceImpl::UnregisterDataSource(ProducerID producer_id,
-                                              const std::string& name) {
-  PERFETTO_DCHECK_THREAD(thread_checker_);
-  PERFETTO_DLOG("Producer %" PRIu16 " unregistered data source \"%s\"",
-                producer_id, name.c_str());
-  PERFETTO_CHECK(producer_id);
-  ProducerEndpointImpl* producer = GetProducer(producer_id);
-  PERFETTO_DCHECK(producer);
-  for (auto& kv : tracing_sessions_) {
-    auto& ds_instances = kv.second.data_source_instances;
-    bool removed = false;
-    for (auto it = ds_instances.begin(); it != ds_instances.end();) {
-      if (it->first == producer_id && it->second.data_source_name == name) {
-        DataSourceInstanceID ds_inst_id = it->second.instance_id;
-        if (it->second.state != DataSourceInstance::STOPPED) {
-          if (it->second.state != DataSourceInstance::STOPPING) {
-            StopDataSourceInstance(producer, &kv.second, &it->second,
-                                   /* disable_immediately = */ false);
-          }
-
-          // Mark the instance as stopped immediately, since we are
-          // unregistering it below.
-          //
-          //  The StopDataSourceInstance above might have set the state to
-          //  STOPPING so this condition isn't an else.
-          if (it->second.state == DataSourceInstance::STOPPING)
-            NotifyDataSourceStopped(producer_id, ds_inst_id);
-        }
-        it = ds_instances.erase(it);
-        removed = true;
-      } else {
-        ++it;
-      }
-    }  // for (data_source_instances)
-    if (removed)
-      MaybeNotifyAllDataSourcesStarted(&kv.second);
-  }  // for (tracing_session)
-
-  for (auto it = data_sources_.begin(); it != data_sources_.end(); ++it) {
-    if (it->second.producer_id == producer_id &&
-        it->second.descriptor.name() == name) {
-      data_sources_.erase(it);
-      return;
-    }
-  }
-
-  PERFETTO_DFATAL(
-      "Tried to unregister a non-existent data source \"%s\" for "
-      "producer %" PRIu16,
-      name.c_str(), producer_id);
-}
-
-TracingServiceImpl::DataSourceInstance* TracingServiceImpl::SetupDataSource(
-    const TraceConfig::DataSource& cfg_data_source,
-    const TraceConfig::ProducerConfig& producer_config,
-    const RegisteredDataSource& data_source,
-    TracingSession* tracing_session) {
-  PERFETTO_DCHECK_THREAD(thread_checker_);
-  ProducerEndpointImpl* producer = GetProducer(data_source.producer_id);
-  PERFETTO_DCHECK(producer);
-  // An existing producer that is not ftrace could have registered itself as
-  // ftrace, we must not enable it in that case.
-  if (lockdown_mode_ && producer->uid_ != uid_) {
-    PERFETTO_DLOG("Lockdown mode: not enabling producer %hu", producer->id_);
-    return nullptr;
-  }
-  // TODO(primiano): Add tests for registration ordering (data sources vs
-  // consumers).
-  if (!NameMatchesFilter(producer->name_,
-                         cfg_data_source.producer_name_filter(),
-                         cfg_data_source.producer_name_regex_filter())) {
-    PERFETTO_DLOG("Data source: %s is filtered out for producer: %s",
-                  cfg_data_source.config().name().c_str(),
-                  producer->name_.c_str());
-    return nullptr;
-  }
-
-  auto relative_buffer_id = cfg_data_source.config().target_buffer();
-  if (relative_buffer_id >= tracing_session->num_buffers()) {
-    PERFETTO_LOG(
-        "The TraceConfig for DataSource %s specified a target_buffer out of "
-        "bound (%d). Skipping it.",
-        cfg_data_source.config().name().c_str(), relative_buffer_id);
-    return nullptr;
-  }
-
-  // Create a copy of the DataSourceConfig specified in the trace config. This
-  // will be passed to the producer after translating the |target_buffer| id.
-  // The |target_buffer| parameter passed by the consumer in the trace config is
-  // relative to the buffers declared in the same trace config. This has to be
-  // translated to the global BufferID before passing it to the producers, which
-  // don't know anything about tracing sessions and consumers.
-
-  DataSourceInstanceID inst_id = ++last_data_source_instance_id_;
-  auto insert_iter = tracing_session->data_source_instances.emplace(
-      std::piecewise_construct,  //
-      std::forward_as_tuple(producer->id_),
-      std::forward_as_tuple(
-          inst_id,
-          cfg_data_source.config(),  //  Deliberate copy.
-          data_source.descriptor.name(),
-          data_source.descriptor.will_notify_on_start(),
-          data_source.descriptor.will_notify_on_stop(),
-          data_source.descriptor.handles_incremental_state_clear()));
-  DataSourceInstance* ds_instance = &insert_iter->second;
-
-  // New data source instance starts out in CONFIGURED state.
-  if (tracing_session->consumer_maybe_null) {
-    tracing_session->consumer_maybe_null->OnDataSourceInstanceStateChange(
-        *producer, *ds_instance);
-  }
-
-  DataSourceConfig& ds_config = ds_instance->config;
-  ds_config.set_trace_duration_ms(tracing_session->config.duration_ms());
-  ds_config.set_stop_timeout_ms(tracing_session->data_source_stop_timeout_ms());
-  ds_config.set_enable_extra_guardrails(
-      tracing_session->config.enable_extra_guardrails());
-  if (tracing_session->consumer_uid == 1066 /* AID_STATSD */ &&
-      tracing_session->config.statsd_metadata().triggering_config_uid() !=
-          2000 /* AID_SHELL */
-      && tracing_session->config.statsd_metadata().triggering_config_uid() !=
-             0 /* AID_ROOT */) {
-    // StatsD can be triggered either by shell, root or an app that has DUMP and
-    // USAGE_STATS permission. When triggered by shell or root, we do not want
-    // to consider the trace a trusted system trace, as it was initiated by the
-    // user. Otherwise, it has to come from an app with DUMP and
-    // PACKAGE_USAGE_STATS, which has to be preinstalled and trusted by the
-    // system.
-    // Check for shell / root: https://bit.ly/3b7oZNi
-    // Check for DUMP or PACKAGE_USAGE_STATS: https://bit.ly/3ep0NrR
-    ds_config.set_session_initiator(
-        DataSourceConfig::SESSION_INITIATOR_TRUSTED_SYSTEM);
-  } else {
-    // Unset in case the consumer set it.
-    // We need to be able to trust this field.
-    ds_config.set_session_initiator(
-        DataSourceConfig::SESSION_INITIATOR_UNSPECIFIED);
-  }
-  ds_config.set_tracing_session_id(tracing_session->id);
-  BufferID global_id = tracing_session->buffers_index[relative_buffer_id];
-  PERFETTO_DCHECK(global_id);
-  ds_config.set_target_buffer(global_id);
-
-  PERFETTO_DLOG("Setting up data source %s with target buffer %" PRIu16,
-                ds_config.name().c_str(), global_id);
-  if (!producer->shared_memory()) {
-    // Determine the SMB page size. Must be an integer multiple of 4k.
-    // As for the SMB size below, the decision tree is as follows:
-    // 1. Give priority to what is defined in the trace config.
-    // 2. If unset give priority to the hint passed by the producer.
-    // 3. Keep within bounds and ensure it's a multiple of 4k.
-    size_t page_size = producer_config.page_size_kb() * 1024;
-    if (page_size == 0)
-      page_size = producer->shmem_page_size_hint_bytes_;
-
-    // Determine the SMB size. Must be an integer multiple of the SMB page size.
-    // The decision tree is as follows:
-    // 1. Give priority to what defined in the trace config.
-    // 2. If unset give priority to the hint passed by the producer.
-    // 3. Keep within bounds and ensure it's a multiple of the page size.
-    size_t shm_size = producer_config.shm_size_kb() * 1024;
-    if (shm_size == 0)
-      shm_size = producer->shmem_size_hint_bytes_;
-
-    auto valid_sizes = EnsureValidShmSizes(shm_size, page_size);
-    if (valid_sizes != std::tie(shm_size, page_size)) {
-      PERFETTO_DLOG(
-          "Invalid configured SMB sizes: shm_size %zu page_size %zu. Falling "
-          "back to shm_size %zu page_size %zu.",
-          shm_size, page_size, std::get<0>(valid_sizes),
-          std::get<1>(valid_sizes));
-    }
-    std::tie(shm_size, page_size) = valid_sizes;
-
-    // TODO(primiano): right now Create() will suicide in case of OOM if the
-    // mmap fails. We should instead gracefully fail the request and tell the
-    // client to go away.
-    PERFETTO_DLOG("Creating SMB of %zu KB for producer \"%s\"", shm_size / 1024,
-                  producer->name_.c_str());
-    auto shared_memory = shm_factory_->CreateSharedMemory(shm_size);
-    producer->SetupSharedMemory(std::move(shared_memory), page_size,
-                                /*provided_by_producer=*/false);
-  }
-  producer->SetupDataSource(inst_id, ds_config);
-  return ds_instance;
-}
-
-// Note: all the fields % *_trusted ones are untrusted, as in, the Producer
-// might be lying / returning garbage contents. |src| and |size| can be trusted
-// in terms of being a valid pointer, but not the contents.
-void TracingServiceImpl::CopyProducerPageIntoLogBuffer(
-    ProducerID producer_id_trusted,
-    uid_t producer_uid_trusted,
-    WriterID writer_id,
-    ChunkID chunk_id,
-    BufferID buffer_id,
-    uint16_t num_fragments,
-    uint8_t chunk_flags,
-    bool chunk_complete,
-    const uint8_t* src,
-    size_t size) {
-  PERFETTO_DCHECK_THREAD(thread_checker_);
-
-  ProducerEndpointImpl* producer = GetProducer(producer_id_trusted);
-  if (!producer) {
-    PERFETTO_DFATAL("Producer not found.");
-    chunks_discarded_++;
-    return;
-  }
-
-  TraceBuffer* buf = GetBufferByID(buffer_id);
-  if (!buf) {
-    PERFETTO_DLOG("Could not find target buffer %" PRIu16
-                  " for producer %" PRIu16,
-                  buffer_id, producer_id_trusted);
-    chunks_discarded_++;
-    return;
-  }
-
-  // Verify that the producer is actually allowed to write into the target
-  // buffer specified in the request. This prevents a malicious producer from
-  // injecting data into a log buffer that belongs to a tracing session the
-  // producer is not part of.
-  if (!producer->is_allowed_target_buffer(buffer_id)) {
-    PERFETTO_ELOG("Producer %" PRIu16
-                  " tried to write into forbidden target buffer %" PRIu16,
-                  producer_id_trusted, buffer_id);
-    PERFETTO_DFATAL("Forbidden target buffer");
-    chunks_discarded_++;
-    return;
-  }
-
-  // If the writer was registered by the producer, it should only write into the
-  // buffer it was registered with.
-  base::Optional<BufferID> associated_buffer =
-      producer->buffer_id_for_writer(writer_id);
-  if (associated_buffer && *associated_buffer != buffer_id) {
-    PERFETTO_ELOG("Writer %" PRIu16 " of producer %" PRIu16
-                  " was registered to write into target buffer %" PRIu16
-                  ", but tried to write into buffer %" PRIu16,
-                  writer_id, producer_id_trusted, *associated_buffer,
-                  buffer_id);
-    PERFETTO_DFATAL("Wrong target buffer");
-    chunks_discarded_++;
-    return;
-  }
-
-  buf->CopyChunkUntrusted(producer_id_trusted, producer_uid_trusted, writer_id,
-                          chunk_id, num_fragments, chunk_flags, chunk_complete,
-                          src, size);
-}
-
-void TracingServiceImpl::ApplyChunkPatches(
-    ProducerID producer_id_trusted,
-    const std::vector<CommitDataRequest::ChunkToPatch>& chunks_to_patch) {
-  PERFETTO_DCHECK_THREAD(thread_checker_);
-
-  for (const auto& chunk : chunks_to_patch) {
-    const ChunkID chunk_id = static_cast<ChunkID>(chunk.chunk_id());
-    const WriterID writer_id = static_cast<WriterID>(chunk.writer_id());
-    TraceBuffer* buf =
-        GetBufferByID(static_cast<BufferID>(chunk.target_buffer()));
-    static_assert(std::numeric_limits<ChunkID>::max() == kMaxChunkID,
-                  "Add a '|| chunk_id > kMaxChunkID' below if this fails");
-    if (!writer_id || writer_id > kMaxWriterID || !buf) {
-      // This can genuinely happen when the trace is stopped. The producers
-      // might see the stop signal with some delay and try to keep sending
-      // patches left soon after.
-      PERFETTO_DLOG(
-          "Received invalid chunks_to_patch request from Producer: %" PRIu16
-          ", BufferID: %" PRIu32 " ChunkdID: %" PRIu32 " WriterID: %" PRIu16,
-          producer_id_trusted, chunk.target_buffer(), chunk_id, writer_id);
-      patches_discarded_ += static_cast<uint64_t>(chunk.patches_size());
-      continue;
-    }
-
-    // Note, there's no need to validate that the producer is allowed to write
-    // to the specified buffer ID (or that it's the correct buffer ID for a
-    // registered TraceWriter). That's because TraceBuffer uses the producer ID
-    // and writer ID to look up the chunk to patch. If the producer specifies an
-    // incorrect buffer, this lookup will fail and TraceBuffer will ignore the
-    // patches. Because the producer ID is trusted, there's also no way for a
-    // malicious producer to patch another producer's data.
-
-    // Speculate on the fact that there are going to be a limited amount of
-    // patches per request, so we can allocate the |patches| array on the stack.
-    std::array<TraceBuffer::Patch, 1024> patches;  // Uninitialized.
-    if (chunk.patches().size() > patches.size()) {
-      PERFETTO_ELOG("Too many patches (%zu) batched in the same request",
-                    patches.size());
-      PERFETTO_DFATAL("Too many patches");
-      patches_discarded_ += static_cast<uint64_t>(chunk.patches_size());
-      continue;
-    }
-
-    size_t i = 0;
-    for (const auto& patch : chunk.patches()) {
-      const std::string& patch_data = patch.data();
-      if (patch_data.size() != patches[i].data.size()) {
-        PERFETTO_ELOG("Received patch from producer: %" PRIu16
-                      " of unexpected size %zu",
-                      producer_id_trusted, patch_data.size());
-        patches_discarded_++;
-        continue;
-      }
-      patches[i].offset_untrusted = patch.offset();
-      memcpy(&patches[i].data[0], patch_data.data(), patches[i].data.size());
-      i++;
-    }
-    buf->TryPatchChunkContents(producer_id_trusted, writer_id, chunk_id,
-                               &patches[0], i, chunk.has_more_patches());
-  }
-}
-
-TracingServiceImpl::TracingSession* TracingServiceImpl::GetDetachedSession(
-    uid_t uid,
-    const std::string& key) {
-  PERFETTO_DCHECK_THREAD(thread_checker_);
-  for (auto& kv : tracing_sessions_) {
-    TracingSession* session = &kv.second;
-    if (session->consumer_uid == uid && session->detach_key == key) {
-      PERFETTO_DCHECK(session->consumer_maybe_null == nullptr);
-      return session;
-    }
-  }
-  return nullptr;
-}
-
-TracingServiceImpl::TracingSession* TracingServiceImpl::GetTracingSession(
-    TracingSessionID tsid) {
-  PERFETTO_DCHECK_THREAD(thread_checker_);
-  auto it = tsid ? tracing_sessions_.find(tsid) : tracing_sessions_.end();
-  if (it == tracing_sessions_.end())
-    return nullptr;
-  return &it->second;
-}
-
-ProducerID TracingServiceImpl::GetNextProducerID() {
-  PERFETTO_DCHECK_THREAD(thread_checker_);
-  PERFETTO_CHECK(producers_.size() < kMaxProducerID);
-  do {
-    ++last_producer_id_;
-  } while (producers_.count(last_producer_id_) || last_producer_id_ == 0);
-  PERFETTO_DCHECK(last_producer_id_ > 0 && last_producer_id_ <= kMaxProducerID);
-  return last_producer_id_;
-}
-
-TraceBuffer* TracingServiceImpl::GetBufferByID(BufferID buffer_id) {
-  auto buf_iter = buffers_.find(buffer_id);
-  if (buf_iter == buffers_.end())
-    return nullptr;
-  return &*buf_iter->second;
-}
-
-void TracingServiceImpl::OnStartTriggersTimeout(TracingSessionID tsid) {
-  // Skip entirely the flush if the trace session doesn't exist anymore.
-  // This is to prevent misleading error messages to be logged.
-  //
-  // if the trace has started from the trigger we rely on
-  // the |stop_delay_ms| from the trigger so don't flush and
-  // disable if we've moved beyond a CONFIGURED state
-  auto* tracing_session_ptr = GetTracingSession(tsid);
-  if (tracing_session_ptr &&
-      tracing_session_ptr->state == TracingSession::CONFIGURED) {
-    PERFETTO_DLOG("Disabling TracingSession %" PRIu64
-                  " since no triggers activated.",
-                  tsid);
-    // No data should be returned from ReadBuffers() regardless of if we
-    // call FreeBuffers() or DisableTracing(). This is because in
-    // STOP_TRACING we need this promise in either case, and using
-    // DisableTracing() allows a graceful shutdown. Consumers can follow
-    // their normal path and check the buffers through ReadBuffers() and
-    // the code won't hang because the tracing session will still be
-    // alive just disabled.
-    DisableTracing(tsid);
-  }
-}
-
-void TracingServiceImpl::UpdateMemoryGuardrail() {
-#if PERFETTO_BUILDFLAG(PERFETTO_WATCHDOG)
-  uint64_t total_buffer_bytes = 0;
-
-  // Sum up all the shared memory buffers.
-  for (const auto& id_to_producer : producers_) {
-    if (id_to_producer.second->shared_memory())
-      total_buffer_bytes += id_to_producer.second->shared_memory()->size();
-  }
-
-  // Sum up all the trace buffers.
-  for (const auto& id_to_buffer : buffers_) {
-    total_buffer_bytes += id_to_buffer.second->size();
-  }
-
-  // Set the guard rail to 32MB + the sum of all the buffers over a 30 second
-  // interval.
-  uint64_t guardrail = base::kWatchdogDefaultMemorySlack + total_buffer_bytes;
-  base::Watchdog::GetInstance()->SetMemoryLimit(guardrail, 30 * 1000);
-#endif
-}
-
-void TracingServiceImpl::PeriodicSnapshotTask(TracingSessionID tsid) {
-  auto* tracing_session = GetTracingSession(tsid);
-  if (!tracing_session)
-    return;
-  if (tracing_session->state != TracingSession::STARTED)
-    return;
-  tracing_session->should_emit_sync_marker = true;
-  tracing_session->should_emit_stats = true;
-  MaybeSnapshotClocksIntoRingBuffer(tracing_session);
-}
-
-void TracingServiceImpl::SnapshotLifecyleEvent(TracingSession* tracing_session,
-                                               uint32_t field_id,
-                                               bool snapshot_clocks) {
-  // field_id should be an id of a field in TracingServiceEvent.
-  auto& lifecycle_events = tracing_session->lifecycle_events;
-  auto event_it =
-      std::find_if(lifecycle_events.begin(), lifecycle_events.end(),
-                   [field_id](const TracingSession::LifecycleEvent& event) {
-                     return event.field_id == field_id;
-                   });
-
-  TracingSession::LifecycleEvent* event;
-  if (event_it == lifecycle_events.end()) {
-    lifecycle_events.emplace_back(field_id);
-    event = &lifecycle_events.back();
-  } else {
-    event = &*event_it;
-  }
-
-  // Snapshot the clocks before capturing the timestamp for the event so we can
-  // use this snapshot to resolve the event timestamp if necessary.
-  if (snapshot_clocks)
-    MaybeSnapshotClocksIntoRingBuffer(tracing_session);
-
-  // Erase before emplacing to prevent a unncessary doubling of memory if
-  // not needed.
-  if (event->timestamps.size() >= event->max_size) {
-    event->timestamps.erase_front(1 + event->timestamps.size() -
-                                  event->max_size);
-  }
-  event->timestamps.emplace_back(base::GetBootTimeNs().count());
-}
-
-void TracingServiceImpl::MaybeSnapshotClocksIntoRingBuffer(
-    TracingSession* tracing_session) {
-  if (tracing_session->config.builtin_data_sources()
-          .disable_clock_snapshotting()) {
-    return;
-  }
-
-  // We are making an explicit copy of the latest snapshot (if it exists)
-  // because SnapshotClocks reads this data and computes the drift based on its
-  // content. If the clock drift is high enough, it will update the contents of
-  // |snapshot| and return true. Otherwise, it will return false.
-  TracingSession::ClockSnapshotData snapshot =
-      tracing_session->clock_snapshot_ring_buffer.empty()
-          ? TracingSession::ClockSnapshotData()
-          : tracing_session->clock_snapshot_ring_buffer.back();
-  bool did_update = SnapshotClocks(&snapshot);
-  if (did_update) {
-    // This means clocks drifted enough since last snapshot. See the comment
-    // in SnapshotClocks.
-    auto* snapshot_buffer = &tracing_session->clock_snapshot_ring_buffer;
-
-    // Erase before emplacing to prevent a unncessary doubling of memory if
-    // not needed.
-    static constexpr uint32_t kClockSnapshotRingBufferSize = 16;
-    if (snapshot_buffer->size() >= kClockSnapshotRingBufferSize) {
-      snapshot_buffer->erase_front(1 + snapshot_buffer->size() -
-                                   kClockSnapshotRingBufferSize);
-    }
-    snapshot_buffer->emplace_back(std::move(snapshot));
-  }
-}
-
-// Returns true when the data in |snapshot_data| is updated with the new state
-// of the clocks and false otherwise.
-bool TracingServiceImpl::SnapshotClocks(
-    TracingSession::ClockSnapshotData* snapshot_data) {
-  // Minimum drift that justifies replacing a prior clock snapshot that hasn't
-  // been emitted into the trace yet (see comment below).
-  static constexpr int64_t kSignificantDriftNs = 10 * 1000 * 1000;  // 10 ms
-
-  TracingSession::ClockSnapshotData new_snapshot_data;
-
-#if !PERFETTO_BUILDFLAG(PERFETTO_OS_APPLE) && \
-    !PERFETTO_BUILDFLAG(PERFETTO_OS_WIN) &&   \
-    !PERFETTO_BUILDFLAG(PERFETTO_OS_NACL)
-  struct {
-    clockid_t id;
-    protos::pbzero::BuiltinClock type;
-    struct timespec ts;
-  } clocks[] = {
-      {CLOCK_BOOTTIME, protos::pbzero::BUILTIN_CLOCK_BOOTTIME, {0, 0}},
-      {CLOCK_REALTIME_COARSE,
-       protos::pbzero::BUILTIN_CLOCK_REALTIME_COARSE,
-       {0, 0}},
-      {CLOCK_MONOTONIC_COARSE,
-       protos::pbzero::BUILTIN_CLOCK_MONOTONIC_COARSE,
-       {0, 0}},
-      {CLOCK_REALTIME, protos::pbzero::BUILTIN_CLOCK_REALTIME, {0, 0}},
-      {CLOCK_MONOTONIC, protos::pbzero::BUILTIN_CLOCK_MONOTONIC, {0, 0}},
-      {CLOCK_MONOTONIC_RAW,
-       protos::pbzero::BUILTIN_CLOCK_MONOTONIC_RAW,
-       {0, 0}},
-  };
-  // First snapshot all the clocks as atomically as we can.
-  for (auto& clock : clocks) {
-    if (clock_gettime(clock.id, &clock.ts) == -1)
-      PERFETTO_DLOG("clock_gettime failed for clock %d", clock.id);
-  }
-  for (auto& clock : clocks) {
-    new_snapshot_data.push_back(std::make_pair(
-        static_cast<uint32_t>(clock.type),
-        static_cast<uint64_t>(base::FromPosixTimespec(clock.ts).count())));
-  }
-#else  // OS_APPLE || OS_WIN && OS_NACL
-  auto wall_time_ns = static_cast<uint64_t>(base::GetWallTimeNs().count());
-  // The default trace clock is boot time, so we always need to emit a path to
-  // it. However since we don't actually have a boot time source on these
-  // platforms, pretend that wall time equals boot time.
-  new_snapshot_data.push_back(
-      std::make_pair(protos::pbzero::BUILTIN_CLOCK_BOOTTIME, wall_time_ns));
-  new_snapshot_data.push_back(
-      std::make_pair(protos::pbzero::BUILTIN_CLOCK_MONOTONIC, wall_time_ns));
-#endif
-
-  // If we're about to update a session's latest clock snapshot that hasn't been
-  // emitted into the trace yet, check whether the clocks have drifted enough to
-  // warrant overriding the current snapshot values. The older snapshot would be
-  // valid for a larger part of the currently buffered trace data because the
-  // clock sync protocol in trace processor uses the latest clock <= timestamp
-  // to translate times (see https://perfetto.dev/docs/concepts/clock-sync), so
-  // we try to keep it if we can.
-  if (!snapshot_data->empty()) {
-    PERFETTO_DCHECK(snapshot_data->size() == new_snapshot_data.size());
-    PERFETTO_DCHECK((*snapshot_data)[0].first ==
-                    protos::gen::BUILTIN_CLOCK_BOOTTIME);
-
-    bool update_snapshot = false;
-    uint64_t old_boot_ns = (*snapshot_data)[0].second;
-    uint64_t new_boot_ns = new_snapshot_data[0].second;
-    int64_t boot_diff =
-        static_cast<int64_t>(new_boot_ns) - static_cast<int64_t>(old_boot_ns);
-
-    for (size_t i = 1; i < snapshot_data->size(); i++) {
-      uint64_t old_ns = (*snapshot_data)[i].second;
-      uint64_t new_ns = new_snapshot_data[i].second;
-
-      int64_t diff =
-          static_cast<int64_t>(new_ns) - static_cast<int64_t>(old_ns);
-
-      // Compare the boottime delta against the delta of this clock.
-      if (std::abs(boot_diff - diff) >= kSignificantDriftNs) {
-        update_snapshot = true;
-        break;
-      }
-    }
-    if (!update_snapshot)
-      return false;
-    snapshot_data->clear();
-  }
-
-  *snapshot_data = std::move(new_snapshot_data);
-  return true;
-}
-
-void TracingServiceImpl::EmitClockSnapshot(
-    TracingSession* tracing_session,
-    TracingSession::ClockSnapshotData snapshot_data,
-    std::vector<TracePacket>* packets) {
-  PERFETTO_DCHECK(!tracing_session->config.builtin_data_sources()
-                       .disable_clock_snapshotting());
-
-  protozero::HeapBuffered<protos::pbzero::TracePacket> packet;
-  auto* snapshot = packet->set_clock_snapshot();
-
-  protos::gen::BuiltinClock trace_clock =
-      tracing_session->config.builtin_data_sources().primary_trace_clock();
-  if (!trace_clock)
-    trace_clock = protos::gen::BUILTIN_CLOCK_BOOTTIME;
-  snapshot->set_primary_trace_clock(
-      static_cast<protos::pbzero::BuiltinClock>(trace_clock));
-
-  for (auto& clock_id_and_ts : snapshot_data) {
-    auto* c = snapshot->add_clocks();
-    c->set_clock_id(clock_id_and_ts.first);
-    c->set_timestamp(clock_id_and_ts.second);
-  }
-
-  packet->set_trusted_uid(static_cast<int32_t>(uid_));
-  packet->set_trusted_packet_sequence_id(kServicePacketSequenceID);
-  SerializeAndAppendPacket(packets, packet.SerializeAsArray());
-}
-
-void TracingServiceImpl::EmitSyncMarker(std::vector<TracePacket>* packets) {
-  // The sync marks are used to tokenize large traces efficiently.
-  // See description in trace_packet.proto.
-  if (sync_marker_packet_size_ == 0) {
-    // The marker ABI expects that the marker is written after the uid.
-    // Protozero guarantees that fields are written in the same order of the
-    // calls. The ResynchronizeTraceStreamUsingSyncMarker test verifies the ABI.
-    protozero::StaticBuffered<protos::pbzero::TracePacket> packet(
-        &sync_marker_packet_[0], sizeof(sync_marker_packet_));
-    packet->set_trusted_uid(static_cast<int32_t>(uid_));
-    packet->set_trusted_packet_sequence_id(kServicePacketSequenceID);
-
-    // Keep this last.
-    packet->set_synchronization_marker(kSyncMarker, sizeof(kSyncMarker));
-    sync_marker_packet_size_ = packet.Finalize();
-  }
-  packets->emplace_back();
-  packets->back().AddSlice(&sync_marker_packet_[0], sync_marker_packet_size_);
-}
-
-void TracingServiceImpl::EmitStats(TracingSession* tracing_session,
-                                   std::vector<TracePacket>* packets) {
-  protozero::HeapBuffered<protos::pbzero::TracePacket> packet;
-  packet->set_trusted_uid(static_cast<int32_t>(uid_));
-  packet->set_trusted_packet_sequence_id(kServicePacketSequenceID);
-  GetTraceStats(tracing_session).Serialize(packet->set_trace_stats());
-  SerializeAndAppendPacket(packets, packet.SerializeAsArray());
-}
-
-TraceStats TracingServiceImpl::GetTraceStats(TracingSession* tracing_session) {
-  TraceStats trace_stats;
-  trace_stats.set_producers_connected(static_cast<uint32_t>(producers_.size()));
-  trace_stats.set_producers_seen(last_producer_id_);
-  trace_stats.set_data_sources_registered(
-      static_cast<uint32_t>(data_sources_.size()));
-  trace_stats.set_data_sources_seen(last_data_source_instance_id_);
-  trace_stats.set_tracing_sessions(
-      static_cast<uint32_t>(tracing_sessions_.size()));
-  trace_stats.set_total_buffers(static_cast<uint32_t>(buffers_.size()));
-  trace_stats.set_chunks_discarded(chunks_discarded_);
-  trace_stats.set_patches_discarded(patches_discarded_);
-  trace_stats.set_invalid_packets(tracing_session->invalid_packets);
-
-  if (tracing_session->trace_filter) {
-    auto* filt_stats = trace_stats.mutable_filter_stats();
-    filt_stats->set_input_packets(tracing_session->filter_input_packets);
-    filt_stats->set_input_bytes(tracing_session->filter_input_bytes);
-    filt_stats->set_output_bytes(tracing_session->filter_output_bytes);
-    filt_stats->set_errors(tracing_session->filter_errors);
-  }
-
-  for (BufferID buf_id : tracing_session->buffers_index) {
-    TraceBuffer* buf = GetBufferByID(buf_id);
-    if (!buf) {
-      PERFETTO_DFATAL("Buffer not found.");
-      continue;
-    }
-    *trace_stats.add_buffer_stats() = buf->stats();
-  }  // for (buf in session).
-  return trace_stats;
-}
-
-void TracingServiceImpl::MaybeEmitTraceConfig(
-    TracingSession* tracing_session,
-    std::vector<TracePacket>* packets) {
-  if (tracing_session->did_emit_config)
-    return;
-  tracing_session->did_emit_config = true;
-  protozero::HeapBuffered<protos::pbzero::TracePacket> packet;
-  packet->set_trusted_uid(static_cast<int32_t>(uid_));
-  packet->set_trusted_packet_sequence_id(kServicePacketSequenceID);
-  tracing_session->config.Serialize(packet->set_trace_config());
-  SerializeAndAppendPacket(packets, packet.SerializeAsArray());
-}
-
-void TracingServiceImpl::MaybeEmitSystemInfo(
-    TracingSession* tracing_session,
-    std::vector<TracePacket>* packets) {
-  if (tracing_session->did_emit_system_info)
-    return;
-  tracing_session->did_emit_system_info = true;
-  protozero::HeapBuffered<protos::pbzero::TracePacket> packet;
-  auto* info = packet->set_system_info();
-  info->set_tracing_service_version(base::GetVersionString());
-#if !PERFETTO_BUILDFLAG(PERFETTO_OS_WIN) && \
-    !PERFETTO_BUILDFLAG(PERFETTO_OS_NACL)
-  struct utsname uname_info;
-  if (uname(&uname_info) == 0) {
-    auto* utsname_info = info->set_utsname();
-    utsname_info->set_sysname(uname_info.sysname);
-    utsname_info->set_version(uname_info.version);
-    utsname_info->set_machine(uname_info.machine);
-    utsname_info->set_release(uname_info.release);
-  }
-#endif  // !PERFETTO_BUILDFLAG(PERFETTO_OS_WIN)
-#if PERFETTO_BUILDFLAG(PERFETTO_OS_ANDROID)
-  char value[PROP_VALUE_MAX];
-  if (__system_property_get("ro.build.fingerprint", value)) {
-    info->set_android_build_fingerprint(value);
-  } else {
-    PERFETTO_ELOG("Unable to read ro.build.fingerprint");
-  }
-  info->set_hz(sysconf(_SC_CLK_TCK));
-#endif  // PERFETTO_BUILDFLAG(PERFETTO_OS_ANDROID)
-  packet->set_trusted_uid(static_cast<int32_t>(uid_));
-  packet->set_trusted_packet_sequence_id(kServicePacketSequenceID);
-  SerializeAndAppendPacket(packets, packet.SerializeAsArray());
-}
-
-void TracingServiceImpl::EmitLifecycleEvents(
-    TracingSession* tracing_session,
-    std::vector<TracePacket>* packets) {
-  using TimestampedPacket =
-      std::pair<int64_t /* ts */, std::vector<uint8_t> /* serialized packet */>;
-
-  std::vector<TimestampedPacket> timestamped_packets;
-  for (auto& event : tracing_session->lifecycle_events) {
-    for (int64_t ts : event.timestamps) {
-      protozero::HeapBuffered<protos::pbzero::TracePacket> packet;
-      packet->set_timestamp(static_cast<uint64_t>(ts));
-      packet->set_trusted_uid(static_cast<int32_t>(uid_));
-      packet->set_trusted_packet_sequence_id(kServicePacketSequenceID);
-
-      auto* service_event = packet->set_service_event();
-      service_event->AppendVarInt(event.field_id, 1);
-      timestamped_packets.emplace_back(ts, packet.SerializeAsArray());
-    }
-    event.timestamps.clear();
-  }
-
-  // We sort by timestamp here to ensure that the "sequence" of lifecycle
-  // packets has monotonic timestamps like other sequences in the trace.
-  // Note that these events could still be out of order with respect to other
-  // events on the service packet sequence (e.g. trigger received packets).
-  std::sort(timestamped_packets.begin(), timestamped_packets.end(),
-            [](const TimestampedPacket& a, const TimestampedPacket& b) {
-              return a.first < b.first;
-            });
-
-  for (const auto& pair : timestamped_packets)
-    SerializeAndAppendPacket(packets, std::move(pair.second));
-}
-
-void TracingServiceImpl::EmitSeizedForBugreportLifecycleEvent(
-    std::vector<TracePacket>* packets) {
-  protozero::HeapBuffered<protos::pbzero::TracePacket> packet;
-  packet->set_timestamp(static_cast<uint64_t>(base::GetBootTimeNs().count()));
-  packet->set_trusted_uid(static_cast<int32_t>(uid_));
-  packet->set_trusted_packet_sequence_id(kServicePacketSequenceID);
-  auto* service_event = packet->set_service_event();
-  service_event->AppendVarInt(
-      protos::pbzero::TracingServiceEvent::kSeizedForBugreportFieldNumber, 1);
-  SerializeAndAppendPacket(packets, packet.SerializeAsArray());
-}
-
-void TracingServiceImpl::MaybeEmitReceivedTriggers(
-    TracingSession* tracing_session,
-    std::vector<TracePacket>* packets) {
-  PERFETTO_DCHECK(tracing_session->num_triggers_emitted_into_trace <=
-                  tracing_session->received_triggers.size());
-  for (size_t i = tracing_session->num_triggers_emitted_into_trace;
-       i < tracing_session->received_triggers.size(); ++i) {
-    const auto& info = tracing_session->received_triggers[i];
-    protozero::HeapBuffered<protos::pbzero::TracePacket> packet;
-    auto* trigger = packet->set_trigger();
-    trigger->set_trigger_name(info.trigger_name);
-    trigger->set_producer_name(info.producer_name);
-    trigger->set_trusted_producer_uid(static_cast<int32_t>(info.producer_uid));
-
-    packet->set_timestamp(info.boot_time_ns);
-    packet->set_trusted_uid(static_cast<int32_t>(uid_));
-    packet->set_trusted_packet_sequence_id(kServicePacketSequenceID);
-    SerializeAndAppendPacket(packets, packet.SerializeAsArray());
-    ++tracing_session->num_triggers_emitted_into_trace;
-  }
-}
-
-bool TracingServiceImpl::MaybeSaveTraceForBugreport(
-    std::function<void()> callback) {
-  TracingSession* max_session = nullptr;
-  TracingSessionID max_tsid = 0;
-  for (auto& session_id_and_session : tracing_sessions_) {
-    auto& session = session_id_and_session.second;
-    const int32_t score = session.config.bugreport_score();
-    // Exclude sessions with 0 (or below) score. By default tracing sessions
-    // should NOT be eligible to be attached to bugreports.
-    if (score <= 0 || session.state != TracingSession::STARTED)
-      continue;
-
-    // Also don't try to steal long traces with write_into_file if their content
-    // has been already partially written into a file, as we would get partial
-    // traces on both sides. We can't just copy the original file into the
-    // bugreport because the file could be too big (GBs) for bugreports.
-    // The only case where it's legit to steal traces with write_into_file, is
-    // when the consumer specified a very large write_period_ms (e.g. 24h),
-    // meaning that this is effectively a ring-buffer trace. Traceur (the
-    // Android System Tracing app), which uses --detach, does this to have a
-    // consistent invocation path for long-traces and ring-buffer-mode traces.
-    if (session.write_into_file && session.bytes_written_into_file > 0)
-      continue;
-
-    // If we are already in the process of finalizing another trace for
-    // bugreport, don't even start another one, as they would try to write onto
-    // the same file.
-    if (session.on_disable_callback_for_bugreport)
-      return false;
-
-    if (!max_session || score > max_session->config.bugreport_score()) {
-      max_session = &session;
-      max_tsid = session_id_and_session.first;
-    }
-  }
-
-  // No eligible trace found.
-  if (!max_session)
-    return false;
-
-  PERFETTO_LOG("Seizing trace for bugreport. tsid:%" PRIu64
-               " state:%d wf:%d score:%d name:\"%s\"",
-               max_tsid, max_session->state, !!max_session->write_into_file,
-               max_session->config.bugreport_score(),
-               max_session->config.unique_session_name().c_str());
-
-  auto br_fd = CreateTraceFile(GetBugreportTmpPath(), /*overwrite=*/true);
-  if (!br_fd)
-    return false;
-
-  if (max_session->write_into_file) {
-    auto fd = *max_session->write_into_file;
-    // If we are stealing a write_into_file session, add a marker that explains
-    // why the trace has been stolen rather than creating an empty file. This is
-    // only for write_into_file traces. A similar code path deals with the case
-    // of reading-back a seized trace from IPC in ReadBuffers().
-    if (!max_session->config.builtin_data_sources().disable_service_events()) {
-      std::vector<TracePacket> packets;
-      EmitSeizedForBugreportLifecycleEvent(&packets);
-      for (auto& packet : packets) {
-        char* preamble;
-        size_t preamble_size = 0;
-        std::tie(preamble, preamble_size) = packet.GetProtoPreamble();
-        base::WriteAll(fd, preamble, preamble_size);
-        for (const Slice& slice : packet.slices()) {
-          base::WriteAll(fd, slice.start, slice.size);
-        }
-      }  // for (packets)
-    }    // if (!disable_service_events())
-  }      // if (max_session->write_into_file)
-  max_session->write_into_file = std::move(br_fd);
-  max_session->on_disable_callback_for_bugreport = std::move(callback);
-  max_session->seized_for_bugreport = true;
-
-  // Post a task to avoid that early FlushAndDisableTracing() failures invoke
-  // the callback before we return. That would re-enter in a weird way the
-  // callstack of the calling ConsumerEndpointImpl::SaveTraceForBugreport().
-  auto weak_this = weak_ptr_factory_.GetWeakPtr();
-  task_runner_->PostTask([weak_this, max_tsid] {
-    if (weak_this)
-      weak_this->FlushAndDisableTracing(max_tsid);
-  });
-  return true;
-}
-
-void TracingServiceImpl::MaybeLogUploadEvent(const TraceConfig& cfg,
-                                             PerfettoStatsdAtom atom,
-                                             const std::string& trigger_name) {
-  if (!ShouldLogEvent(cfg))
-    return;
-
-  // If the UUID is not set for some reason, don't log anything.
-  if (cfg.trace_uuid_lsb() == 0 && cfg.trace_uuid_msb() == 0)
-    return;
-
-  android_stats::MaybeLogUploadEvent(atom, cfg.trace_uuid_lsb(),
-                                     cfg.trace_uuid_msb(), trigger_name);
-}
-
-void TracingServiceImpl::MaybeLogTriggerEvent(const TraceConfig& cfg,
-                                              PerfettoTriggerAtom atom,
-                                              const std::string& trigger_name) {
-  if (!ShouldLogEvent(cfg))
-    return;
-  android_stats::MaybeLogTriggerEvent(atom, trigger_name);
-}
-
-size_t TracingServiceImpl::PurgeExpiredAndCountTriggerInWindow(
-    int64_t now_ns,
-    uint64_t trigger_name_hash) {
-  PERFETTO_DCHECK(
-      std::is_sorted(trigger_history_.begin(), trigger_history_.end()));
-  size_t remove_count = 0;
-  size_t trigger_count = 0;
-  for (const TriggerHistory& h : trigger_history_) {
-    if (h.timestamp_ns < now_ns - trigger_window_ns_) {
-      remove_count++;
-    } else if (h.name_hash == trigger_name_hash) {
-      trigger_count++;
-    }
-  }
-  trigger_history_.erase_front(remove_count);
-  return trigger_count;
-}
-
-////////////////////////////////////////////////////////////////////////////////
-// TracingServiceImpl::ConsumerEndpointImpl implementation
-////////////////////////////////////////////////////////////////////////////////
-
-TracingServiceImpl::ConsumerEndpointImpl::ConsumerEndpointImpl(
-    TracingServiceImpl* service,
-    base::TaskRunner* task_runner,
-    Consumer* consumer,
-    uid_t uid)
-    : task_runner_(task_runner),
-      service_(service),
-      consumer_(consumer),
-      uid_(uid),
-      weak_ptr_factory_(this) {}
-
-TracingServiceImpl::ConsumerEndpointImpl::~ConsumerEndpointImpl() {
-  service_->DisconnectConsumer(this);
-  consumer_->OnDisconnect();
-}
-
-void TracingServiceImpl::ConsumerEndpointImpl::NotifyOnTracingDisabled(
-    const std::string& error) {
-  PERFETTO_DCHECK_THREAD(thread_checker_);
-  auto weak_this = weak_ptr_factory_.GetWeakPtr();
-  task_runner_->PostTask([weak_this, error /* deliberate copy */] {
-    if (weak_this)
-      weak_this->consumer_->OnTracingDisabled(error);
-  });
-}
-
-void TracingServiceImpl::ConsumerEndpointImpl::EnableTracing(
-    const TraceConfig& cfg,
-    base::ScopedFile fd) {
-  PERFETTO_DCHECK_THREAD(thread_checker_);
-  auto status = service_->EnableTracing(this, cfg, std::move(fd));
-  if (!status.ok())
-    NotifyOnTracingDisabled(status.message());
-}
-
-void TracingServiceImpl::ConsumerEndpointImpl::ChangeTraceConfig(
-    const TraceConfig& cfg) {
-  if (!tracing_session_id_) {
-    PERFETTO_LOG(
-        "Consumer called ChangeTraceConfig() but tracing was "
-        "not active");
-    return;
-  }
-  service_->ChangeTraceConfig(this, cfg);
-}
-
-void TracingServiceImpl::ConsumerEndpointImpl::StartTracing() {
-  PERFETTO_DCHECK_THREAD(thread_checker_);
-  if (!tracing_session_id_) {
-    PERFETTO_LOG("Consumer called StartTracing() but tracing was not active");
-    return;
-  }
-  service_->StartTracing(tracing_session_id_);
-}
-
-void TracingServiceImpl::ConsumerEndpointImpl::DisableTracing() {
-  PERFETTO_DCHECK_THREAD(thread_checker_);
-  if (!tracing_session_id_) {
-    PERFETTO_LOG("Consumer called DisableTracing() but tracing was not active");
-    return;
-  }
-  service_->DisableTracing(tracing_session_id_);
-}
-
-void TracingServiceImpl::ConsumerEndpointImpl::ReadBuffers() {
-  PERFETTO_DCHECK_THREAD(thread_checker_);
-  if (!tracing_session_id_) {
-    PERFETTO_LOG("Consumer called ReadBuffers() but tracing was not active");
-    consumer_->OnTraceData({}, /* has_more = */ false);
-    return;
-  }
-  if (!service_->ReadBuffers(tracing_session_id_, this)) {
-    consumer_->OnTraceData({}, /* has_more = */ false);
-  }
-}
-
-void TracingServiceImpl::ConsumerEndpointImpl::FreeBuffers() {
-  PERFETTO_DCHECK_THREAD(thread_checker_);
-  if (!tracing_session_id_) {
-    PERFETTO_LOG("Consumer called FreeBuffers() but tracing was not active");
-    return;
-  }
-  service_->FreeBuffers(tracing_session_id_);
-  tracing_session_id_ = 0;
-}
-
-void TracingServiceImpl::ConsumerEndpointImpl::Flush(uint32_t timeout_ms,
-                                                     FlushCallback callback) {
-  PERFETTO_DCHECK_THREAD(thread_checker_);
-  if (!tracing_session_id_) {
-    PERFETTO_LOG("Consumer called Flush() but tracing was not active");
-    return;
-  }
-  service_->Flush(tracing_session_id_, timeout_ms, callback);
-}
-
-void TracingServiceImpl::ConsumerEndpointImpl::Detach(const std::string& key) {
-  PERFETTO_DCHECK_THREAD(thread_checker_);
-  bool success = service_->DetachConsumer(this, key);
-  auto weak_this = weak_ptr_factory_.GetWeakPtr();
-  task_runner_->PostTask([weak_this, success] {
-    if (weak_this)
-      weak_this->consumer_->OnDetach(success);
-  });
-}
-
-void TracingServiceImpl::ConsumerEndpointImpl::Attach(const std::string& key) {
-  PERFETTO_DCHECK_THREAD(thread_checker_);
-  bool success = service_->AttachConsumer(this, key);
-  auto weak_this = weak_ptr_factory_.GetWeakPtr();
-  task_runner_->PostTask([weak_this, success] {
-    if (!weak_this)
-      return;
-    Consumer* consumer = weak_this->consumer_;
-    TracingSession* session =
-        weak_this->service_->GetTracingSession(weak_this->tracing_session_id_);
-    if (!session) {
-      consumer->OnAttach(false, TraceConfig());
-      return;
-    }
-    consumer->OnAttach(success, session->config);
-  });
-}
-
-void TracingServiceImpl::ConsumerEndpointImpl::GetTraceStats() {
-  PERFETTO_DCHECK_THREAD(thread_checker_);
-  bool success = false;
-  TraceStats stats;
-  TracingSession* session = service_->GetTracingSession(tracing_session_id_);
-  if (session) {
-    success = true;
-    stats = service_->GetTraceStats(session);
-  }
-  auto weak_this = weak_ptr_factory_.GetWeakPtr();
-  task_runner_->PostTask([weak_this, success, stats] {
-    if (weak_this)
-      weak_this->consumer_->OnTraceStats(success, stats);
-  });
-}
-
-void TracingServiceImpl::ConsumerEndpointImpl::ObserveEvents(
-    uint32_t events_mask) {
-  PERFETTO_DCHECK_THREAD(thread_checker_);
-  observable_events_mask_ = events_mask;
-  TracingSession* session = service_->GetTracingSession(tracing_session_id_);
-  if (!session)
-    return;
-
-  if (observable_events_mask_ & ObservableEvents::TYPE_DATA_SOURCES_INSTANCES) {
-    // Issue initial states.
-    for (const auto& kv : session->data_source_instances) {
-      ProducerEndpointImpl* producer = service_->GetProducer(kv.first);
-      PERFETTO_DCHECK(producer);
-      OnDataSourceInstanceStateChange(*producer, kv.second);
-    }
-  }
-
-  // If the ObserveEvents() call happens after data sources have acked already
-  // notify immediately.
-  if (observable_events_mask_ &
-      ObservableEvents::TYPE_ALL_DATA_SOURCES_STARTED) {
-    service_->MaybeNotifyAllDataSourcesStarted(session);
-  }
-}
-
-void TracingServiceImpl::ConsumerEndpointImpl::OnDataSourceInstanceStateChange(
-    const ProducerEndpointImpl& producer,
-    const DataSourceInstance& instance) {
-  if (!(observable_events_mask_ &
-        ObservableEvents::TYPE_DATA_SOURCES_INSTANCES)) {
-    return;
-  }
-
-  if (instance.state != DataSourceInstance::CONFIGURED &&
-      instance.state != DataSourceInstance::STARTED &&
-      instance.state != DataSourceInstance::STOPPED) {
-    return;
-  }
-
-  auto* observable_events = AddObservableEvents();
-  auto* change = observable_events->add_instance_state_changes();
-  change->set_producer_name(producer.name_);
-  change->set_data_source_name(instance.data_source_name);
-  if (instance.state == DataSourceInstance::STARTED) {
-    change->set_state(ObservableEvents::DATA_SOURCE_INSTANCE_STATE_STARTED);
-  } else {
-    change->set_state(ObservableEvents::DATA_SOURCE_INSTANCE_STATE_STOPPED);
-  }
-}
-
-void TracingServiceImpl::ConsumerEndpointImpl::OnAllDataSourcesStarted() {
-  if (!(observable_events_mask_ &
-        ObservableEvents::TYPE_ALL_DATA_SOURCES_STARTED)) {
-    return;
-  }
-  auto* observable_events = AddObservableEvents();
-  observable_events->set_all_data_sources_started(true);
-}
-
-ObservableEvents*
-TracingServiceImpl::ConsumerEndpointImpl::AddObservableEvents() {
-  PERFETTO_DCHECK_THREAD(thread_checker_);
-  if (!observable_events_) {
-    observable_events_.reset(new ObservableEvents());
-    auto weak_this = weak_ptr_factory_.GetWeakPtr();
-    task_runner_->PostTask([weak_this] {
-      if (!weak_this)
-        return;
-
-      // Move into a temporary to allow reentrancy in OnObservableEvents.
-      auto observable_events = std::move(weak_this->observable_events_);
-      weak_this->consumer_->OnObservableEvents(*observable_events);
-    });
-  }
-  return observable_events_.get();
-}
-
-void TracingServiceImpl::ConsumerEndpointImpl::QueryServiceState(
-    QueryServiceStateCallback callback) {
-  PERFETTO_DCHECK_THREAD(thread_checker_);
-  TracingServiceState svc_state;
-
-  const auto& sessions = service_->tracing_sessions_;
-  svc_state.set_tracing_service_version(base::GetVersionString());
-  svc_state.set_num_sessions(static_cast<int>(sessions.size()));
-
-  int num_started = 0;
-  for (const auto& kv : sessions)
-    num_started += kv.second.state == TracingSession::State::STARTED ? 1 : 0;
-  svc_state.set_num_sessions_started(static_cast<int>(num_started));
-
-  for (const auto& kv : service_->producers_) {
-    auto* producer = svc_state.add_producers();
-    producer->set_id(static_cast<int>(kv.first));
-    producer->set_name(kv.second->name_);
-    producer->set_sdk_version(kv.second->sdk_version_);
-    producer->set_uid(static_cast<int32_t>(producer->uid()));
-  }
-
-  for (const auto& kv : service_->data_sources_) {
-    const auto& registered_data_source = kv.second;
-    auto* data_source = svc_state.add_data_sources();
-    *data_source->mutable_ds_descriptor() = registered_data_source.descriptor;
-    data_source->set_producer_id(
-        static_cast<int>(registered_data_source.producer_id));
-  }
-  callback(/*success=*/true, svc_state);
-}
-
-void TracingServiceImpl::ConsumerEndpointImpl::QueryCapabilities(
-    QueryCapabilitiesCallback callback) {
-  PERFETTO_DCHECK_THREAD(thread_checker_);
-  TracingServiceCapabilities caps;
-  caps.set_has_query_capabilities(true);
-  caps.set_has_trace_config_output_path(true);
-  caps.add_observable_events(ObservableEvents::TYPE_DATA_SOURCES_INSTANCES);
-  caps.add_observable_events(ObservableEvents::TYPE_ALL_DATA_SOURCES_STARTED);
-  static_assert(ObservableEvents::Type_MAX ==
-                    ObservableEvents::TYPE_ALL_DATA_SOURCES_STARTED,
-                "");
-  callback(caps);
-}
-
-void TracingServiceImpl::ConsumerEndpointImpl::SaveTraceForBugreport(
-    SaveTraceForBugreportCallback consumer_callback) {
-  PERFETTO_DCHECK_THREAD(thread_checker_);
-  auto on_complete_callback = [consumer_callback] {
-    if (rename(GetBugreportTmpPath().c_str(), GetBugreportPath().c_str())) {
-      consumer_callback(false, "rename(" + GetBugreportTmpPath() + ", " +
-                                   GetBugreportPath() + ") failed (" +
-                                   strerror(errno) + ")");
-    } else {
-      consumer_callback(true, GetBugreportPath());
-    }
-  };
-  if (!service_->MaybeSaveTraceForBugreport(std::move(on_complete_callback))) {
-    consumer_callback(false,
-                      "No trace with TraceConfig.bugreport_score > 0 eligible "
-                      "for bug reporting was found");
-  }
-}
-
-////////////////////////////////////////////////////////////////////////////////
-// TracingServiceImpl::ProducerEndpointImpl implementation
-////////////////////////////////////////////////////////////////////////////////
-
-TracingServiceImpl::ProducerEndpointImpl::ProducerEndpointImpl(
-    ProducerID id,
-    uid_t uid,
-    TracingServiceImpl* service,
-    base::TaskRunner* task_runner,
-    Producer* producer,
-    const std::string& producer_name,
-    const std::string& sdk_version,
-    bool in_process,
-    bool smb_scraping_enabled)
-    : id_(id),
-      uid_(uid),
-      service_(service),
-      task_runner_(task_runner),
-      producer_(producer),
-      name_(producer_name),
-      sdk_version_(sdk_version),
-      in_process_(in_process),
-      smb_scraping_enabled_(smb_scraping_enabled),
-      weak_ptr_factory_(this) {}
-
-TracingServiceImpl::ProducerEndpointImpl::~ProducerEndpointImpl() {
-  service_->DisconnectProducer(id_);
-  producer_->OnDisconnect();
-}
-
-void TracingServiceImpl::ProducerEndpointImpl::RegisterDataSource(
-    const DataSourceDescriptor& desc) {
-  PERFETTO_DCHECK_THREAD(thread_checker_);
-  if (desc.name().empty()) {
-    PERFETTO_DLOG("Received RegisterDataSource() with empty name");
-    return;
-  }
-
-  service_->RegisterDataSource(id_, desc);
-}
-
-void TracingServiceImpl::ProducerEndpointImpl::UnregisterDataSource(
-    const std::string& name) {
-  PERFETTO_DCHECK_THREAD(thread_checker_);
-  service_->UnregisterDataSource(id_, name);
-}
-
-void TracingServiceImpl::ProducerEndpointImpl::RegisterTraceWriter(
-    uint32_t writer_id,
-    uint32_t target_buffer) {
-  PERFETTO_DCHECK_THREAD(thread_checker_);
-  writers_[static_cast<WriterID>(writer_id)] =
-      static_cast<BufferID>(target_buffer);
-}
-
-void TracingServiceImpl::ProducerEndpointImpl::UnregisterTraceWriter(
-    uint32_t writer_id) {
-  PERFETTO_DCHECK_THREAD(thread_checker_);
-  writers_.erase(static_cast<WriterID>(writer_id));
-}
-
-void TracingServiceImpl::ProducerEndpointImpl::CommitData(
-    const CommitDataRequest& req_untrusted,
-    CommitDataCallback callback) {
-  PERFETTO_DCHECK_THREAD(thread_checker_);
-
-  if (metatrace::IsEnabled(metatrace::TAG_TRACE_SERVICE)) {
-    PERFETTO_METATRACE_COUNTER(TAG_TRACE_SERVICE, TRACE_SERVICE_COMMIT_DATA,
-                               EncodeCommitDataRequest(id_, req_untrusted));
-  }
-
-  if (!shared_memory_) {
-    PERFETTO_DLOG(
-        "Attempted to commit data before the shared memory was allocated.");
-    return;
-  }
-  PERFETTO_DCHECK(shmem_abi_.is_valid());
-  for (const auto& entry : req_untrusted.chunks_to_move()) {
-    const uint32_t page_idx = entry.page();
-    if (page_idx >= shmem_abi_.num_pages())
-      continue;  // A buggy or malicious producer.
-
-    SharedMemoryABI::Chunk chunk =
-        shmem_abi_.TryAcquireChunkForReading(page_idx, entry.chunk());
-    if (!chunk.is_valid()) {
-      PERFETTO_DLOG("Asked to move chunk %d:%d, but it's not complete",
-                    entry.page(), entry.chunk());
-      continue;
-    }
-
-    // TryAcquireChunkForReading() has load-acquire semantics. Once acquired,
-    // the ABI contract expects the producer to not touch the chunk anymore
-    // (until the service marks that as free). This is why all the reads below
-    // are just memory_order_relaxed. Also, the code here assumes that all this
-    // data can be malicious and just gives up if anything is malformed.
-    BufferID buffer_id = static_cast<BufferID>(entry.target_buffer());
-    const SharedMemoryABI::ChunkHeader& chunk_header = *chunk.header();
-    WriterID writer_id = chunk_header.writer_id.load(std::memory_order_relaxed);
-    ChunkID chunk_id = chunk_header.chunk_id.load(std::memory_order_relaxed);
-    auto packets = chunk_header.packets.load(std::memory_order_relaxed);
-    uint16_t num_fragments = packets.count;
-    uint8_t chunk_flags = packets.flags;
-
-    service_->CopyProducerPageIntoLogBuffer(
-        id_, uid_, writer_id, chunk_id, buffer_id, num_fragments, chunk_flags,
-        /*chunk_complete=*/true, chunk.payload_begin(), chunk.payload_size());
-
-    // This one has release-store semantics.
-    shmem_abi_.ReleaseChunkAsFree(std::move(chunk));
-  }  // for(chunks_to_move)
-
-  service_->ApplyChunkPatches(id_, req_untrusted.chunks_to_patch());
-
-  if (req_untrusted.flush_request_id()) {
-    service_->NotifyFlushDoneForProducer(id_, req_untrusted.flush_request_id());
-  }
-
-  // Keep this invocation last. ProducerIPCService::CommitData() relies on this
-  // callback being invoked within the same callstack and not posted. If this
-  // changes, the code there needs to be changed accordingly.
-  if (callback)
-    callback();
-}
-
-void TracingServiceImpl::ProducerEndpointImpl::SetupSharedMemory(
-    std::unique_ptr<SharedMemory> shared_memory,
-    size_t page_size_bytes,
-    bool provided_by_producer) {
-  PERFETTO_DCHECK(!shared_memory_ && !shmem_abi_.is_valid());
-  PERFETTO_DCHECK(page_size_bytes % 1024 == 0);
-
-  shared_memory_ = std::move(shared_memory);
-  shared_buffer_page_size_kb_ = page_size_bytes / 1024;
-  is_shmem_provided_by_producer_ = provided_by_producer;
-
-  shmem_abi_.Initialize(reinterpret_cast<uint8_t*>(shared_memory_->start()),
-                        shared_memory_->size(),
-                        shared_buffer_page_size_kb() * 1024);
-  if (in_process_) {
-    inproc_shmem_arbiter_.reset(new SharedMemoryArbiterImpl(
-        shared_memory_->start(), shared_memory_->size(),
-        shared_buffer_page_size_kb_ * 1024, this, task_runner_));
-    inproc_shmem_arbiter_->SetDirectSMBPatchingSupportedByService();
-  }
-
-  OnTracingSetup();
-  service_->UpdateMemoryGuardrail();
-}
-
-SharedMemory* TracingServiceImpl::ProducerEndpointImpl::shared_memory() const {
-  PERFETTO_DCHECK_THREAD(thread_checker_);
-  return shared_memory_.get();
-}
-
-size_t TracingServiceImpl::ProducerEndpointImpl::shared_buffer_page_size_kb()
-    const {
-  return shared_buffer_page_size_kb_;
-}
-
-void TracingServiceImpl::ProducerEndpointImpl::ActivateTriggers(
-    const std::vector<std::string>& triggers) {
-  service_->ActivateTriggers(id_, triggers);
-}
-
-void TracingServiceImpl::ProducerEndpointImpl::StopDataSource(
-    DataSourceInstanceID ds_inst_id) {
-  // TODO(primiano): When we'll support tearing down the SMB, at this point we
-  // should send the Producer a TearDownTracing if all its data sources have
-  // been disabled (see b/77532839 and aosp/655179 PS1).
-  PERFETTO_DCHECK_THREAD(thread_checker_);
-  auto weak_this = weak_ptr_factory_.GetWeakPtr();
-  task_runner_->PostTask([weak_this, ds_inst_id] {
-    if (weak_this)
-      weak_this->producer_->StopDataSource(ds_inst_id);
-  });
-}
-
-SharedMemoryArbiter*
-TracingServiceImpl::ProducerEndpointImpl::MaybeSharedMemoryArbiter() {
-  if (!inproc_shmem_arbiter_) {
-    PERFETTO_FATAL(
-        "The in-process SharedMemoryArbiter can only be used when "
-        "CreateProducer has been called with in_process=true and after tracing "
-        "has started.");
-  }
-
-  PERFETTO_DCHECK(in_process_);
-  return inproc_shmem_arbiter_.get();
-}
-
-bool TracingServiceImpl::ProducerEndpointImpl::IsShmemProvidedByProducer()
-    const {
-  return is_shmem_provided_by_producer_;
-}
-
-// Can be called on any thread.
-std::unique_ptr<TraceWriter>
-TracingServiceImpl::ProducerEndpointImpl::CreateTraceWriter(
-    BufferID buf_id,
-    BufferExhaustedPolicy buffer_exhausted_policy) {
-  PERFETTO_DCHECK(MaybeSharedMemoryArbiter());
-  return MaybeSharedMemoryArbiter()->CreateTraceWriter(buf_id,
-                                                       buffer_exhausted_policy);
-}
-
-void TracingServiceImpl::ProducerEndpointImpl::NotifyFlushComplete(
-    FlushRequestID id) {
-  PERFETTO_DCHECK_THREAD(thread_checker_);
-  PERFETTO_DCHECK(MaybeSharedMemoryArbiter());
-  return MaybeSharedMemoryArbiter()->NotifyFlushComplete(id);
-}
-
-void TracingServiceImpl::ProducerEndpointImpl::OnTracingSetup() {
-  auto weak_this = weak_ptr_factory_.GetWeakPtr();
-  task_runner_->PostTask([weak_this] {
-    if (weak_this)
-      weak_this->producer_->OnTracingSetup();
-  });
-}
-
-void TracingServiceImpl::ProducerEndpointImpl::Flush(
-    FlushRequestID flush_request_id,
-    const std::vector<DataSourceInstanceID>& data_sources) {
-  PERFETTO_DCHECK_THREAD(thread_checker_);
-  auto weak_this = weak_ptr_factory_.GetWeakPtr();
-  task_runner_->PostTask([weak_this, flush_request_id, data_sources] {
-    if (weak_this) {
-      weak_this->producer_->Flush(flush_request_id, data_sources.data(),
-                                  data_sources.size());
-    }
-  });
-}
-
-void TracingServiceImpl::ProducerEndpointImpl::SetupDataSource(
-    DataSourceInstanceID ds_id,
-    const DataSourceConfig& config) {
-  PERFETTO_DCHECK_THREAD(thread_checker_);
-  allowed_target_buffers_.insert(static_cast<BufferID>(config.target_buffer()));
-  auto weak_this = weak_ptr_factory_.GetWeakPtr();
-  task_runner_->PostTask([weak_this, ds_id, config] {
-    if (weak_this)
-      weak_this->producer_->SetupDataSource(ds_id, std::move(config));
-  });
-}
-
-void TracingServiceImpl::ProducerEndpointImpl::StartDataSource(
-    DataSourceInstanceID ds_id,
-    const DataSourceConfig& config) {
-  PERFETTO_DCHECK_THREAD(thread_checker_);
-  auto weak_this = weak_ptr_factory_.GetWeakPtr();
-  task_runner_->PostTask([weak_this, ds_id, config] {
-    if (weak_this)
-      weak_this->producer_->StartDataSource(ds_id, std::move(config));
-  });
-}
-
-void TracingServiceImpl::ProducerEndpointImpl::NotifyDataSourceStarted(
-    DataSourceInstanceID data_source_id) {
-  PERFETTO_DCHECK_THREAD(thread_checker_);
-  service_->NotifyDataSourceStarted(id_, data_source_id);
-}
-
-void TracingServiceImpl::ProducerEndpointImpl::NotifyDataSourceStopped(
-    DataSourceInstanceID data_source_id) {
-  PERFETTO_DCHECK_THREAD(thread_checker_);
-  service_->NotifyDataSourceStopped(id_, data_source_id);
-}
-
-void TracingServiceImpl::ProducerEndpointImpl::OnFreeBuffers(
-    const std::vector<BufferID>& target_buffers) {
-  if (allowed_target_buffers_.empty())
-    return;
-  for (BufferID buffer : target_buffers)
-    allowed_target_buffers_.erase(buffer);
-}
-
-void TracingServiceImpl::ProducerEndpointImpl::ClearIncrementalState(
-    const std::vector<DataSourceInstanceID>& data_sources) {
-  PERFETTO_DCHECK_THREAD(thread_checker_);
-  auto weak_this = weak_ptr_factory_.GetWeakPtr();
-  task_runner_->PostTask([weak_this, data_sources] {
-    if (weak_this) {
-      weak_this->producer_->ClearIncrementalState(data_sources.data(),
-                                                  data_sources.size());
-    }
-  });
-}
-
-void TracingServiceImpl::ProducerEndpointImpl::Sync(
-    std::function<void()> callback) {
-  task_runner_->PostTask(callback);
-}
-
-////////////////////////////////////////////////////////////////////////////////
-// TracingServiceImpl::TracingSession implementation
-////////////////////////////////////////////////////////////////////////////////
-
-TracingServiceImpl::TracingSession::TracingSession(
-    TracingSessionID session_id,
-    ConsumerEndpointImpl* consumer,
-    const TraceConfig& new_config,
-    base::TaskRunner* task_runner)
-    : id(session_id),
-      consumer_maybe_null(consumer),
-      consumer_uid(consumer->uid_),
-      config(new_config),
-      snapshot_periodic_task(task_runner) {
-  // all_data_sources_flushed is special because we store up to 64 events of
-  // this type. Other events will go through the default case in
-  // SnapshotLifecycleEvent() where they will be given a max history of 1.
-  lifecycle_events.emplace_back(
-      protos::pbzero::TracingServiceEvent::kAllDataSourcesFlushedFieldNumber,
-      64 /* max_size */);
-}
-
-}  // namespace perfetto
-// gen_amalgamated begin source: src/tracing/internal/in_process_tracing_backend.cc
-/*
- * Copyright (C) 2019 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-// gen_amalgamated expanded: #include "perfetto/tracing/internal/in_process_tracing_backend.h"
-
-// gen_amalgamated expanded: #include "perfetto/base/logging.h"
-// gen_amalgamated expanded: #include "perfetto/base/task_runner.h"
-// gen_amalgamated expanded: #include "perfetto/ext/base/paged_memory.h"
-// gen_amalgamated expanded: #include "perfetto/ext/tracing/core/shared_memory.h"
-// gen_amalgamated expanded: #include "perfetto/ext/tracing/core/tracing_service.h"
-
-// TODO(primiano): When the in-process backend is used, we should never end up
-// in a situation where the thread where the TracingService and Producer live
-// writes a packet and hence can get into the GetNewChunk() stall.
-// This would happen only if the API client code calls Trace() from one of the
-// callbacks it receives (e.g. OnStart(), OnStop()). We should either cause a
-// hard crash or ignore traces from that thread if that happens, because it
-// will deadlock (the Service will never free up the SMB because won't ever get
-// to run the task).
-
-namespace perfetto {
-namespace internal {
-
-namespace {
-
-class InProcessShm : public SharedMemory {
- public:
-  explicit InProcessShm(size_t size);
-  ~InProcessShm() override;
-  void* start() const override;
-  size_t size() const override;
-
- private:
-  base::PagedMemory mem_;
-};
-
-class InProcessShmFactory : public SharedMemory::Factory {
- public:
-  ~InProcessShmFactory() override;
-  std::unique_ptr<SharedMemory> CreateSharedMemory(size_t) override;
-};
-
-InProcessShm::~InProcessShm() = default;
-
-InProcessShm::InProcessShm(size_t size)
-    : mem_(base::PagedMemory::Allocate(size)) {}
-
-void* InProcessShm::start() const {
-  return mem_.Get();
-}
-
-size_t InProcessShm::size() const {
-  return mem_.size();
-}
-
-InProcessShmFactory::~InProcessShmFactory() = default;
-std::unique_ptr<SharedMemory> InProcessShmFactory::CreateSharedMemory(
-    size_t size) {
-  return std::unique_ptr<SharedMemory>(new InProcessShm(size));
-}
-
-}  // namespace
-
-// static
-TracingBackend* InProcessTracingBackend::GetInstance() {
-  static auto* instance = new InProcessTracingBackend();
-  return instance;
-}
-
-InProcessTracingBackend::InProcessTracingBackend() {}
-
-std::unique_ptr<ProducerEndpoint> InProcessTracingBackend::ConnectProducer(
-    const ConnectProducerArgs& args) {
-  PERFETTO_DCHECK(args.task_runner->RunsTasksOnCurrentThread());
-
-  // This should never happen as we can have at most one in-process backend.
-  if (service_)
-    PERFETTO_FATAL("InProcessTracingBackend initialized twice");
-
-  return GetOrCreateService(args.task_runner)
-      ->ConnectProducer(args.producer, /*uid=*/0, args.producer_name,
-                        args.shmem_size_hint_bytes,
-                        /*in_process=*/true,
-                        TracingService::ProducerSMBScrapingMode::kEnabled,
-                        args.shmem_page_size_hint_bytes);
-}
-
-std::unique_ptr<ConsumerEndpoint> InProcessTracingBackend::ConnectConsumer(
-    const ConnectConsumerArgs& args) {
-  return GetOrCreateService(args.task_runner)
-      ->ConnectConsumer(args.consumer, /*uid=*/0);
-}
-
-TracingService* InProcessTracingBackend::GetOrCreateService(
-    base::TaskRunner* task_runner) {
-  if (!service_) {
-    std::unique_ptr<InProcessShmFactory> shm(new InProcessShmFactory());
-    service_ = TracingService::CreateInstance(std::move(shm), task_runner);
-    service_->SetSMBScrapingEnabled(true);
-  }
-  return service_.get();
-}
-
-}  // namespace internal
-}  // namespace perfetto
-// gen_amalgamated begin source: gen/protos/perfetto/ipc/consumer_port.gen.cc
-// gen_amalgamated begin header: gen/protos/perfetto/ipc/consumer_port.gen.h
-// DO NOT EDIT. Autogenerated by Perfetto cppgen_plugin
-#ifndef PERFETTO_PROTOS_PROTOS_PERFETTO_IPC_CONSUMER_PORT_PROTO_CPP_H_
-#define PERFETTO_PROTOS_PROTOS_PERFETTO_IPC_CONSUMER_PORT_PROTO_CPP_H_
-
-#include <stdint.h>
-#include <bitset>
-#include <vector>
-#include <string>
-#include <type_traits>
-
-// gen_amalgamated expanded: #include "perfetto/protozero/cpp_message_obj.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/copyable_ptr.h"
-// gen_amalgamated expanded: #include "perfetto/base/export.h"
-
-namespace perfetto {
-namespace protos {
-namespace gen {
-class SaveTraceForBugreportResponse;
-class SaveTraceForBugreportRequest;
-class QueryCapabilitiesResponse;
-class TracingServiceCapabilities;
-class QueryCapabilitiesRequest;
-class QueryServiceStateResponse;
-class TracingServiceState;
-class TracingServiceState_DataSource;
-class DataSourceDescriptor;
-class TracingServiceState_Producer;
-class QueryServiceStateRequest;
-class ObserveEventsResponse;
-class ObservableEvents;
-class ObservableEvents_DataSourceInstanceStateChange;
-class ObserveEventsRequest;
-class GetTraceStatsResponse;
-class TraceStats;
-class TraceStats_FilterStats;
-class TraceStats_BufferStats;
-class GetTraceStatsRequest;
-class AttachResponse;
-class TraceConfig;
-class TraceConfig_TraceFilter;
-class TraceConfig_IncidentReportConfig;
-class TraceConfig_IncrementalStateConfig;
-class TraceConfig_TriggerConfig;
-class TraceConfig_TriggerConfig_Trigger;
-class TraceConfig_GuardrailOverrides;
-class TraceConfig_StatsdMetadata;
-class TraceConfig_ProducerConfig;
-class TraceConfig_BuiltinDataSource;
-class TraceConfig_DataSource;
-class DataSourceConfig;
-class TestConfig;
-class TestConfig_DummyFields;
-class InterceptorConfig;
-class ChromeConfig;
-class TraceConfig_BufferConfig;
-class AttachRequest;
-class DetachResponse;
-class DetachRequest;
-class FlushResponse;
-class FlushRequest;
-class FreeBuffersResponse;
-class FreeBuffersRequest;
-class ReadBuffersResponse;
-class ReadBuffersResponse_Slice;
-class ReadBuffersRequest;
-class DisableTracingResponse;
-class DisableTracingRequest;
-class ChangeTraceConfigResponse;
-class ChangeTraceConfigRequest;
-class StartTracingResponse;
-class StartTracingRequest;
-class EnableTracingResponse;
-class EnableTracingRequest;
-enum ObservableEvents_Type : int;
-enum ObservableEvents_DataSourceInstanceState : int;
-enum TraceConfig_LockdownModeOperation : int;
-enum TraceConfig_CompressionType : int;
-enum TraceConfig_StatsdLogging : int;
-enum TraceConfig_TriggerConfig_TriggerMode : int;
-enum BuiltinClock : int;
-enum DataSourceConfig_SessionInitiator : int;
-enum ChromeConfig_ClientPriority : int;
-enum TraceConfig_BufferConfig_FillPolicy : int;
-}  // namespace perfetto
-}  // namespace protos
-}  // namespace gen
-
-namespace protozero {
-class Message;
-}  // namespace protozero
-
-namespace perfetto {
-namespace protos {
-namespace gen {
-
-class PERFETTO_EXPORT SaveTraceForBugreportResponse : public ::protozero::CppMessageObj {
- public:
-  enum FieldNumbers {
-    kSuccessFieldNumber = 1,
-    kMsgFieldNumber = 2,
-  };
-
-  SaveTraceForBugreportResponse();
-  ~SaveTraceForBugreportResponse() override;
-  SaveTraceForBugreportResponse(SaveTraceForBugreportResponse&&) noexcept;
-  SaveTraceForBugreportResponse& operator=(SaveTraceForBugreportResponse&&);
-  SaveTraceForBugreportResponse(const SaveTraceForBugreportResponse&);
-  SaveTraceForBugreportResponse& operator=(const SaveTraceForBugreportResponse&);
-  bool operator==(const SaveTraceForBugreportResponse&) const;
-  bool operator!=(const SaveTraceForBugreportResponse& other) const { return !(*this == other); }
-
-  bool ParseFromArray(const void*, size_t) override;
-  std::string SerializeAsString() const override;
-  std::vector<uint8_t> SerializeAsArray() const override;
-  void Serialize(::protozero::Message*) const;
-
-  bool has_success() const { return _has_field_[1]; }
-  bool success() const { return success_; }
-  void set_success(bool value) { success_ = value; _has_field_.set(1); }
-
-  bool has_msg() const { return _has_field_[2]; }
-  const std::string& msg() const { return msg_; }
-  void set_msg(const std::string& value) { msg_ = value; _has_field_.set(2); }
-
- private:
-  bool success_{};
-  std::string msg_{};
-
-  // Allows to preserve unknown protobuf fields for compatibility
-  // with future versions of .proto files.
-  std::string unknown_fields_;
-
-  std::bitset<3> _has_field_{};
-};
-
-
-class PERFETTO_EXPORT SaveTraceForBugreportRequest : public ::protozero::CppMessageObj {
- public:
-  enum FieldNumbers {
-  };
-
-  SaveTraceForBugreportRequest();
-  ~SaveTraceForBugreportRequest() override;
-  SaveTraceForBugreportRequest(SaveTraceForBugreportRequest&&) noexcept;
-  SaveTraceForBugreportRequest& operator=(SaveTraceForBugreportRequest&&);
-  SaveTraceForBugreportRequest(const SaveTraceForBugreportRequest&);
-  SaveTraceForBugreportRequest& operator=(const SaveTraceForBugreportRequest&);
-  bool operator==(const SaveTraceForBugreportRequest&) const;
-  bool operator!=(const SaveTraceForBugreportRequest& other) const { return !(*this == other); }
-
-  bool ParseFromArray(const void*, size_t) override;
-  std::string SerializeAsString() const override;
-  std::vector<uint8_t> SerializeAsArray() const override;
-  void Serialize(::protozero::Message*) const;
-
- private:
-
-  // Allows to preserve unknown protobuf fields for compatibility
-  // with future versions of .proto files.
-  std::string unknown_fields_;
-
-  std::bitset<2> _has_field_{};
-};
-
-
-class PERFETTO_EXPORT QueryCapabilitiesResponse : public ::protozero::CppMessageObj {
- public:
-  enum FieldNumbers {
-    kCapabilitiesFieldNumber = 1,
-  };
-
-  QueryCapabilitiesResponse();
-  ~QueryCapabilitiesResponse() override;
-  QueryCapabilitiesResponse(QueryCapabilitiesResponse&&) noexcept;
-  QueryCapabilitiesResponse& operator=(QueryCapabilitiesResponse&&);
-  QueryCapabilitiesResponse(const QueryCapabilitiesResponse&);
-  QueryCapabilitiesResponse& operator=(const QueryCapabilitiesResponse&);
-  bool operator==(const QueryCapabilitiesResponse&) const;
-  bool operator!=(const QueryCapabilitiesResponse& other) const { return !(*this == other); }
-
-  bool ParseFromArray(const void*, size_t) override;
-  std::string SerializeAsString() const override;
-  std::vector<uint8_t> SerializeAsArray() const override;
-  void Serialize(::protozero::Message*) const;
-
-  bool has_capabilities() const { return _has_field_[1]; }
-  const TracingServiceCapabilities& capabilities() const { return *capabilities_; }
-  TracingServiceCapabilities* mutable_capabilities() { _has_field_.set(1); return capabilities_.get(); }
-
- private:
-  ::protozero::CopyablePtr<TracingServiceCapabilities> capabilities_;
-
-  // Allows to preserve unknown protobuf fields for compatibility
-  // with future versions of .proto files.
-  std::string unknown_fields_;
-
-  std::bitset<2> _has_field_{};
-};
-
-
-class PERFETTO_EXPORT QueryCapabilitiesRequest : public ::protozero::CppMessageObj {
- public:
-  enum FieldNumbers {
-  };
-
-  QueryCapabilitiesRequest();
-  ~QueryCapabilitiesRequest() override;
-  QueryCapabilitiesRequest(QueryCapabilitiesRequest&&) noexcept;
-  QueryCapabilitiesRequest& operator=(QueryCapabilitiesRequest&&);
-  QueryCapabilitiesRequest(const QueryCapabilitiesRequest&);
-  QueryCapabilitiesRequest& operator=(const QueryCapabilitiesRequest&);
-  bool operator==(const QueryCapabilitiesRequest&) const;
-  bool operator!=(const QueryCapabilitiesRequest& other) const { return !(*this == other); }
-
-  bool ParseFromArray(const void*, size_t) override;
-  std::string SerializeAsString() const override;
-  std::vector<uint8_t> SerializeAsArray() const override;
-  void Serialize(::protozero::Message*) const;
-
- private:
-
-  // Allows to preserve unknown protobuf fields for compatibility
-  // with future versions of .proto files.
-  std::string unknown_fields_;
-
-  std::bitset<2> _has_field_{};
-};
-
-
-class PERFETTO_EXPORT QueryServiceStateResponse : public ::protozero::CppMessageObj {
- public:
-  enum FieldNumbers {
-    kServiceStateFieldNumber = 1,
-  };
-
-  QueryServiceStateResponse();
-  ~QueryServiceStateResponse() override;
-  QueryServiceStateResponse(QueryServiceStateResponse&&) noexcept;
-  QueryServiceStateResponse& operator=(QueryServiceStateResponse&&);
-  QueryServiceStateResponse(const QueryServiceStateResponse&);
-  QueryServiceStateResponse& operator=(const QueryServiceStateResponse&);
-  bool operator==(const QueryServiceStateResponse&) const;
-  bool operator!=(const QueryServiceStateResponse& other) const { return !(*this == other); }
-
-  bool ParseFromArray(const void*, size_t) override;
-  std::string SerializeAsString() const override;
-  std::vector<uint8_t> SerializeAsArray() const override;
-  void Serialize(::protozero::Message*) const;
-
-  bool has_service_state() const { return _has_field_[1]; }
-  const TracingServiceState& service_state() const { return *service_state_; }
-  TracingServiceState* mutable_service_state() { _has_field_.set(1); return service_state_.get(); }
-
- private:
-  ::protozero::CopyablePtr<TracingServiceState> service_state_;
-
-  // Allows to preserve unknown protobuf fields for compatibility
-  // with future versions of .proto files.
-  std::string unknown_fields_;
-
-  std::bitset<2> _has_field_{};
-};
-
-
-class PERFETTO_EXPORT QueryServiceStateRequest : public ::protozero::CppMessageObj {
- public:
-  enum FieldNumbers {
-  };
-
-  QueryServiceStateRequest();
-  ~QueryServiceStateRequest() override;
-  QueryServiceStateRequest(QueryServiceStateRequest&&) noexcept;
-  QueryServiceStateRequest& operator=(QueryServiceStateRequest&&);
-  QueryServiceStateRequest(const QueryServiceStateRequest&);
-  QueryServiceStateRequest& operator=(const QueryServiceStateRequest&);
-  bool operator==(const QueryServiceStateRequest&) const;
-  bool operator!=(const QueryServiceStateRequest& other) const { return !(*this == other); }
-
-  bool ParseFromArray(const void*, size_t) override;
-  std::string SerializeAsString() const override;
-  std::vector<uint8_t> SerializeAsArray() const override;
-  void Serialize(::protozero::Message*) const;
-
- private:
-
-  // Allows to preserve unknown protobuf fields for compatibility
-  // with future versions of .proto files.
-  std::string unknown_fields_;
-
-  std::bitset<2> _has_field_{};
-};
-
-
-class PERFETTO_EXPORT ObserveEventsResponse : public ::protozero::CppMessageObj {
- public:
-  enum FieldNumbers {
-    kEventsFieldNumber = 1,
-  };
-
-  ObserveEventsResponse();
-  ~ObserveEventsResponse() override;
-  ObserveEventsResponse(ObserveEventsResponse&&) noexcept;
-  ObserveEventsResponse& operator=(ObserveEventsResponse&&);
-  ObserveEventsResponse(const ObserveEventsResponse&);
-  ObserveEventsResponse& operator=(const ObserveEventsResponse&);
-  bool operator==(const ObserveEventsResponse&) const;
-  bool operator!=(const ObserveEventsResponse& other) const { return !(*this == other); }
-
-  bool ParseFromArray(const void*, size_t) override;
-  std::string SerializeAsString() const override;
-  std::vector<uint8_t> SerializeAsArray() const override;
-  void Serialize(::protozero::Message*) const;
-
-  bool has_events() const { return _has_field_[1]; }
-  const ObservableEvents& events() const { return *events_; }
-  ObservableEvents* mutable_events() { _has_field_.set(1); return events_.get(); }
-
- private:
-  ::protozero::CopyablePtr<ObservableEvents> events_;
-
-  // Allows to preserve unknown protobuf fields for compatibility
-  // with future versions of .proto files.
-  std::string unknown_fields_;
-
-  std::bitset<2> _has_field_{};
-};
-
-
-class PERFETTO_EXPORT ObserveEventsRequest : public ::protozero::CppMessageObj {
- public:
-  enum FieldNumbers {
-    kEventsToObserveFieldNumber = 1,
-  };
-
-  ObserveEventsRequest();
-  ~ObserveEventsRequest() override;
-  ObserveEventsRequest(ObserveEventsRequest&&) noexcept;
-  ObserveEventsRequest& operator=(ObserveEventsRequest&&);
-  ObserveEventsRequest(const ObserveEventsRequest&);
-  ObserveEventsRequest& operator=(const ObserveEventsRequest&);
-  bool operator==(const ObserveEventsRequest&) const;
-  bool operator!=(const ObserveEventsRequest& other) const { return !(*this == other); }
-
-  bool ParseFromArray(const void*, size_t) override;
-  std::string SerializeAsString() const override;
-  std::vector<uint8_t> SerializeAsArray() const override;
-  void Serialize(::protozero::Message*) const;
-
-  const std::vector<ObservableEvents_Type>& events_to_observe() const { return events_to_observe_; }
-  std::vector<ObservableEvents_Type>* mutable_events_to_observe() { return &events_to_observe_; }
-  int events_to_observe_size() const { return static_cast<int>(events_to_observe_.size()); }
-  void clear_events_to_observe() { events_to_observe_.clear(); }
-  void add_events_to_observe(ObservableEvents_Type value) { events_to_observe_.emplace_back(value); }
-  ObservableEvents_Type* add_events_to_observe() { events_to_observe_.emplace_back(); return &events_to_observe_.back(); }
-
- private:
-  std::vector<ObservableEvents_Type> events_to_observe_;
-
-  // Allows to preserve unknown protobuf fields for compatibility
-  // with future versions of .proto files.
-  std::string unknown_fields_;
-
-  std::bitset<2> _has_field_{};
-};
-
-
-class PERFETTO_EXPORT GetTraceStatsResponse : public ::protozero::CppMessageObj {
- public:
-  enum FieldNumbers {
-    kTraceStatsFieldNumber = 1,
-  };
-
-  GetTraceStatsResponse();
-  ~GetTraceStatsResponse() override;
-  GetTraceStatsResponse(GetTraceStatsResponse&&) noexcept;
-  GetTraceStatsResponse& operator=(GetTraceStatsResponse&&);
-  GetTraceStatsResponse(const GetTraceStatsResponse&);
-  GetTraceStatsResponse& operator=(const GetTraceStatsResponse&);
-  bool operator==(const GetTraceStatsResponse&) const;
-  bool operator!=(const GetTraceStatsResponse& other) const { return !(*this == other); }
-
-  bool ParseFromArray(const void*, size_t) override;
-  std::string SerializeAsString() const override;
-  std::vector<uint8_t> SerializeAsArray() const override;
-  void Serialize(::protozero::Message*) const;
-
-  bool has_trace_stats() const { return _has_field_[1]; }
-  const TraceStats& trace_stats() const { return *trace_stats_; }
-  TraceStats* mutable_trace_stats() { _has_field_.set(1); return trace_stats_.get(); }
-
- private:
-  ::protozero::CopyablePtr<TraceStats> trace_stats_;
-
-  // Allows to preserve unknown protobuf fields for compatibility
-  // with future versions of .proto files.
-  std::string unknown_fields_;
-
-  std::bitset<2> _has_field_{};
-};
-
-
-class PERFETTO_EXPORT GetTraceStatsRequest : public ::protozero::CppMessageObj {
- public:
-  enum FieldNumbers {
-  };
-
-  GetTraceStatsRequest();
-  ~GetTraceStatsRequest() override;
-  GetTraceStatsRequest(GetTraceStatsRequest&&) noexcept;
-  GetTraceStatsRequest& operator=(GetTraceStatsRequest&&);
-  GetTraceStatsRequest(const GetTraceStatsRequest&);
-  GetTraceStatsRequest& operator=(const GetTraceStatsRequest&);
-  bool operator==(const GetTraceStatsRequest&) const;
-  bool operator!=(const GetTraceStatsRequest& other) const { return !(*this == other); }
-
-  bool ParseFromArray(const void*, size_t) override;
-  std::string SerializeAsString() const override;
-  std::vector<uint8_t> SerializeAsArray() const override;
-  void Serialize(::protozero::Message*) const;
-
- private:
-
-  // Allows to preserve unknown protobuf fields for compatibility
-  // with future versions of .proto files.
-  std::string unknown_fields_;
-
-  std::bitset<2> _has_field_{};
-};
-
-
-class PERFETTO_EXPORT AttachResponse : public ::protozero::CppMessageObj {
- public:
-  enum FieldNumbers {
-    kTraceConfigFieldNumber = 1,
-  };
-
-  AttachResponse();
-  ~AttachResponse() override;
-  AttachResponse(AttachResponse&&) noexcept;
-  AttachResponse& operator=(AttachResponse&&);
-  AttachResponse(const AttachResponse&);
-  AttachResponse& operator=(const AttachResponse&);
-  bool operator==(const AttachResponse&) const;
-  bool operator!=(const AttachResponse& other) const { return !(*this == other); }
-
-  bool ParseFromArray(const void*, size_t) override;
-  std::string SerializeAsString() const override;
-  std::vector<uint8_t> SerializeAsArray() const override;
-  void Serialize(::protozero::Message*) const;
-
-  bool has_trace_config() const { return _has_field_[1]; }
-  const TraceConfig& trace_config() const { return *trace_config_; }
-  TraceConfig* mutable_trace_config() { _has_field_.set(1); return trace_config_.get(); }
-
- private:
-  ::protozero::CopyablePtr<TraceConfig> trace_config_;
-
-  // Allows to preserve unknown protobuf fields for compatibility
-  // with future versions of .proto files.
-  std::string unknown_fields_;
-
-  std::bitset<2> _has_field_{};
-};
-
-
-class PERFETTO_EXPORT AttachRequest : public ::protozero::CppMessageObj {
- public:
-  enum FieldNumbers {
-    kKeyFieldNumber = 1,
-  };
-
-  AttachRequest();
-  ~AttachRequest() override;
-  AttachRequest(AttachRequest&&) noexcept;
-  AttachRequest& operator=(AttachRequest&&);
-  AttachRequest(const AttachRequest&);
-  AttachRequest& operator=(const AttachRequest&);
-  bool operator==(const AttachRequest&) const;
-  bool operator!=(const AttachRequest& other) const { return !(*this == other); }
-
-  bool ParseFromArray(const void*, size_t) override;
-  std::string SerializeAsString() const override;
-  std::vector<uint8_t> SerializeAsArray() const override;
-  void Serialize(::protozero::Message*) const;
-
-  bool has_key() const { return _has_field_[1]; }
-  const std::string& key() const { return key_; }
-  void set_key(const std::string& value) { key_ = value; _has_field_.set(1); }
-
- private:
-  std::string key_{};
-
-  // Allows to preserve unknown protobuf fields for compatibility
-  // with future versions of .proto files.
-  std::string unknown_fields_;
-
-  std::bitset<2> _has_field_{};
-};
-
-
-class PERFETTO_EXPORT DetachResponse : public ::protozero::CppMessageObj {
- public:
-  enum FieldNumbers {
-  };
-
-  DetachResponse();
-  ~DetachResponse() override;
-  DetachResponse(DetachResponse&&) noexcept;
-  DetachResponse& operator=(DetachResponse&&);
-  DetachResponse(const DetachResponse&);
-  DetachResponse& operator=(const DetachResponse&);
-  bool operator==(const DetachResponse&) const;
-  bool operator!=(const DetachResponse& other) const { return !(*this == other); }
-
-  bool ParseFromArray(const void*, size_t) override;
-  std::string SerializeAsString() const override;
-  std::vector<uint8_t> SerializeAsArray() const override;
-  void Serialize(::protozero::Message*) const;
-
- private:
-
-  // Allows to preserve unknown protobuf fields for compatibility
-  // with future versions of .proto files.
-  std::string unknown_fields_;
-
-  std::bitset<2> _has_field_{};
-};
-
-
-class PERFETTO_EXPORT DetachRequest : public ::protozero::CppMessageObj {
- public:
-  enum FieldNumbers {
-    kKeyFieldNumber = 1,
-  };
-
-  DetachRequest();
-  ~DetachRequest() override;
-  DetachRequest(DetachRequest&&) noexcept;
-  DetachRequest& operator=(DetachRequest&&);
-  DetachRequest(const DetachRequest&);
-  DetachRequest& operator=(const DetachRequest&);
-  bool operator==(const DetachRequest&) const;
-  bool operator!=(const DetachRequest& other) const { return !(*this == other); }
-
-  bool ParseFromArray(const void*, size_t) override;
-  std::string SerializeAsString() const override;
-  std::vector<uint8_t> SerializeAsArray() const override;
-  void Serialize(::protozero::Message*) const;
-
-  bool has_key() const { return _has_field_[1]; }
-  const std::string& key() const { return key_; }
-  void set_key(const std::string& value) { key_ = value; _has_field_.set(1); }
-
- private:
-  std::string key_{};
-
-  // Allows to preserve unknown protobuf fields for compatibility
-  // with future versions of .proto files.
-  std::string unknown_fields_;
-
-  std::bitset<2> _has_field_{};
-};
-
-
-class PERFETTO_EXPORT FlushResponse : public ::protozero::CppMessageObj {
- public:
-  enum FieldNumbers {
-  };
-
-  FlushResponse();
-  ~FlushResponse() override;
-  FlushResponse(FlushResponse&&) noexcept;
-  FlushResponse& operator=(FlushResponse&&);
-  FlushResponse(const FlushResponse&);
-  FlushResponse& operator=(const FlushResponse&);
-  bool operator==(const FlushResponse&) const;
-  bool operator!=(const FlushResponse& other) const { return !(*this == other); }
-
-  bool ParseFromArray(const void*, size_t) override;
-  std::string SerializeAsString() const override;
-  std::vector<uint8_t> SerializeAsArray() const override;
-  void Serialize(::protozero::Message*) const;
-
- private:
-
-  // Allows to preserve unknown protobuf fields for compatibility
-  // with future versions of .proto files.
-  std::string unknown_fields_;
-
-  std::bitset<2> _has_field_{};
-};
-
-
-class PERFETTO_EXPORT FlushRequest : public ::protozero::CppMessageObj {
- public:
-  enum FieldNumbers {
-    kTimeoutMsFieldNumber = 1,
-  };
-
-  FlushRequest();
-  ~FlushRequest() override;
-  FlushRequest(FlushRequest&&) noexcept;
-  FlushRequest& operator=(FlushRequest&&);
-  FlushRequest(const FlushRequest&);
-  FlushRequest& operator=(const FlushRequest&);
-  bool operator==(const FlushRequest&) const;
-  bool operator!=(const FlushRequest& other) const { return !(*this == other); }
-
-  bool ParseFromArray(const void*, size_t) override;
-  std::string SerializeAsString() const override;
-  std::vector<uint8_t> SerializeAsArray() const override;
-  void Serialize(::protozero::Message*) const;
-
-  bool has_timeout_ms() const { return _has_field_[1]; }
-  uint32_t timeout_ms() const { return timeout_ms_; }
-  void set_timeout_ms(uint32_t value) { timeout_ms_ = value; _has_field_.set(1); }
-
- private:
-  uint32_t timeout_ms_{};
-
-  // Allows to preserve unknown protobuf fields for compatibility
-  // with future versions of .proto files.
-  std::string unknown_fields_;
-
-  std::bitset<2> _has_field_{};
-};
-
-
-class PERFETTO_EXPORT FreeBuffersResponse : public ::protozero::CppMessageObj {
- public:
-  enum FieldNumbers {
-  };
-
-  FreeBuffersResponse();
-  ~FreeBuffersResponse() override;
-  FreeBuffersResponse(FreeBuffersResponse&&) noexcept;
-  FreeBuffersResponse& operator=(FreeBuffersResponse&&);
-  FreeBuffersResponse(const FreeBuffersResponse&);
-  FreeBuffersResponse& operator=(const FreeBuffersResponse&);
-  bool operator==(const FreeBuffersResponse&) const;
-  bool operator!=(const FreeBuffersResponse& other) const { return !(*this == other); }
-
-  bool ParseFromArray(const void*, size_t) override;
-  std::string SerializeAsString() const override;
-  std::vector<uint8_t> SerializeAsArray() const override;
-  void Serialize(::protozero::Message*) const;
-
- private:
-
-  // Allows to preserve unknown protobuf fields for compatibility
-  // with future versions of .proto files.
-  std::string unknown_fields_;
-
-  std::bitset<2> _has_field_{};
-};
-
-
-class PERFETTO_EXPORT FreeBuffersRequest : public ::protozero::CppMessageObj {
- public:
-  enum FieldNumbers {
-    kBufferIdsFieldNumber = 1,
-  };
-
-  FreeBuffersRequest();
-  ~FreeBuffersRequest() override;
-  FreeBuffersRequest(FreeBuffersRequest&&) noexcept;
-  FreeBuffersRequest& operator=(FreeBuffersRequest&&);
-  FreeBuffersRequest(const FreeBuffersRequest&);
-  FreeBuffersRequest& operator=(const FreeBuffersRequest&);
-  bool operator==(const FreeBuffersRequest&) const;
-  bool operator!=(const FreeBuffersRequest& other) const { return !(*this == other); }
-
-  bool ParseFromArray(const void*, size_t) override;
-  std::string SerializeAsString() const override;
-  std::vector<uint8_t> SerializeAsArray() const override;
-  void Serialize(::protozero::Message*) const;
-
-  const std::vector<uint32_t>& buffer_ids() const { return buffer_ids_; }
-  std::vector<uint32_t>* mutable_buffer_ids() { return &buffer_ids_; }
-  int buffer_ids_size() const { return static_cast<int>(buffer_ids_.size()); }
-  void clear_buffer_ids() { buffer_ids_.clear(); }
-  void add_buffer_ids(uint32_t value) { buffer_ids_.emplace_back(value); }
-  uint32_t* add_buffer_ids() { buffer_ids_.emplace_back(); return &buffer_ids_.back(); }
-
- private:
-  std::vector<uint32_t> buffer_ids_;
-
-  // Allows to preserve unknown protobuf fields for compatibility
-  // with future versions of .proto files.
-  std::string unknown_fields_;
-
-  std::bitset<2> _has_field_{};
-};
-
-
-class PERFETTO_EXPORT ReadBuffersResponse : public ::protozero::CppMessageObj {
- public:
-  using Slice = ReadBuffersResponse_Slice;
-  enum FieldNumbers {
-    kSlicesFieldNumber = 2,
-  };
-
-  ReadBuffersResponse();
-  ~ReadBuffersResponse() override;
-  ReadBuffersResponse(ReadBuffersResponse&&) noexcept;
-  ReadBuffersResponse& operator=(ReadBuffersResponse&&);
-  ReadBuffersResponse(const ReadBuffersResponse&);
-  ReadBuffersResponse& operator=(const ReadBuffersResponse&);
-  bool operator==(const ReadBuffersResponse&) const;
-  bool operator!=(const ReadBuffersResponse& other) const { return !(*this == other); }
-
-  bool ParseFromArray(const void*, size_t) override;
-  std::string SerializeAsString() const override;
-  std::vector<uint8_t> SerializeAsArray() const override;
-  void Serialize(::protozero::Message*) const;
-
-  const std::vector<ReadBuffersResponse_Slice>& slices() const { return slices_; }
-  std::vector<ReadBuffersResponse_Slice>* mutable_slices() { return &slices_; }
-  int slices_size() const;
-  void clear_slices();
-  ReadBuffersResponse_Slice* add_slices();
-
- private:
-  std::vector<ReadBuffersResponse_Slice> slices_;
-
-  // Allows to preserve unknown protobuf fields for compatibility
-  // with future versions of .proto files.
-  std::string unknown_fields_;
-
-  std::bitset<3> _has_field_{};
-};
-
-
-class PERFETTO_EXPORT ReadBuffersResponse_Slice : public ::protozero::CppMessageObj {
- public:
-  enum FieldNumbers {
-    kDataFieldNumber = 1,
-    kLastSliceForPacketFieldNumber = 2,
-  };
-
-  ReadBuffersResponse_Slice();
-  ~ReadBuffersResponse_Slice() override;
-  ReadBuffersResponse_Slice(ReadBuffersResponse_Slice&&) noexcept;
-  ReadBuffersResponse_Slice& operator=(ReadBuffersResponse_Slice&&);
-  ReadBuffersResponse_Slice(const ReadBuffersResponse_Slice&);
-  ReadBuffersResponse_Slice& operator=(const ReadBuffersResponse_Slice&);
-  bool operator==(const ReadBuffersResponse_Slice&) const;
-  bool operator!=(const ReadBuffersResponse_Slice& other) const { return !(*this == other); }
-
-  bool ParseFromArray(const void*, size_t) override;
-  std::string SerializeAsString() const override;
-  std::vector<uint8_t> SerializeAsArray() const override;
-  void Serialize(::protozero::Message*) const;
-
-  bool has_data() const { return _has_field_[1]; }
-  const std::string& data() const { return data_; }
-  void set_data(const std::string& value) { data_ = value; _has_field_.set(1); }
-  void set_data(const void* p, size_t s) { data_.assign(reinterpret_cast<const char*>(p), s); _has_field_.set(1); }
-
-  bool has_last_slice_for_packet() const { return _has_field_[2]; }
-  bool last_slice_for_packet() const { return last_slice_for_packet_; }
-  void set_last_slice_for_packet(bool value) { last_slice_for_packet_ = value; _has_field_.set(2); }
-
- private:
-  std::string data_{};
-  bool last_slice_for_packet_{};
-
-  // Allows to preserve unknown protobuf fields for compatibility
-  // with future versions of .proto files.
-  std::string unknown_fields_;
-
-  std::bitset<3> _has_field_{};
-};
-
-
-class PERFETTO_EXPORT ReadBuffersRequest : public ::protozero::CppMessageObj {
- public:
-  enum FieldNumbers {
-  };
-
-  ReadBuffersRequest();
-  ~ReadBuffersRequest() override;
-  ReadBuffersRequest(ReadBuffersRequest&&) noexcept;
-  ReadBuffersRequest& operator=(ReadBuffersRequest&&);
-  ReadBuffersRequest(const ReadBuffersRequest&);
-  ReadBuffersRequest& operator=(const ReadBuffersRequest&);
-  bool operator==(const ReadBuffersRequest&) const;
-  bool operator!=(const ReadBuffersRequest& other) const { return !(*this == other); }
-
-  bool ParseFromArray(const void*, size_t) override;
-  std::string SerializeAsString() const override;
-  std::vector<uint8_t> SerializeAsArray() const override;
-  void Serialize(::protozero::Message*) const;
-
- private:
-
-  // Allows to preserve unknown protobuf fields for compatibility
-  // with future versions of .proto files.
-  std::string unknown_fields_;
-
-  std::bitset<2> _has_field_{};
-};
-
-
-class PERFETTO_EXPORT DisableTracingResponse : public ::protozero::CppMessageObj {
- public:
-  enum FieldNumbers {
-  };
-
-  DisableTracingResponse();
-  ~DisableTracingResponse() override;
-  DisableTracingResponse(DisableTracingResponse&&) noexcept;
-  DisableTracingResponse& operator=(DisableTracingResponse&&);
-  DisableTracingResponse(const DisableTracingResponse&);
-  DisableTracingResponse& operator=(const DisableTracingResponse&);
-  bool operator==(const DisableTracingResponse&) const;
-  bool operator!=(const DisableTracingResponse& other) const { return !(*this == other); }
-
-  bool ParseFromArray(const void*, size_t) override;
-  std::string SerializeAsString() const override;
-  std::vector<uint8_t> SerializeAsArray() const override;
-  void Serialize(::protozero::Message*) const;
-
- private:
-
-  // Allows to preserve unknown protobuf fields for compatibility
-  // with future versions of .proto files.
-  std::string unknown_fields_;
-
-  std::bitset<2> _has_field_{};
-};
-
-
-class PERFETTO_EXPORT DisableTracingRequest : public ::protozero::CppMessageObj {
- public:
-  enum FieldNumbers {
-  };
-
-  DisableTracingRequest();
-  ~DisableTracingRequest() override;
-  DisableTracingRequest(DisableTracingRequest&&) noexcept;
-  DisableTracingRequest& operator=(DisableTracingRequest&&);
-  DisableTracingRequest(const DisableTracingRequest&);
-  DisableTracingRequest& operator=(const DisableTracingRequest&);
-  bool operator==(const DisableTracingRequest&) const;
-  bool operator!=(const DisableTracingRequest& other) const { return !(*this == other); }
-
-  bool ParseFromArray(const void*, size_t) override;
-  std::string SerializeAsString() const override;
-  std::vector<uint8_t> SerializeAsArray() const override;
-  void Serialize(::protozero::Message*) const;
-
- private:
-
-  // Allows to preserve unknown protobuf fields for compatibility
-  // with future versions of .proto files.
-  std::string unknown_fields_;
-
-  std::bitset<2> _has_field_{};
-};
-
-
-class PERFETTO_EXPORT ChangeTraceConfigResponse : public ::protozero::CppMessageObj {
- public:
-  enum FieldNumbers {
-  };
-
-  ChangeTraceConfigResponse();
-  ~ChangeTraceConfigResponse() override;
-  ChangeTraceConfigResponse(ChangeTraceConfigResponse&&) noexcept;
-  ChangeTraceConfigResponse& operator=(ChangeTraceConfigResponse&&);
-  ChangeTraceConfigResponse(const ChangeTraceConfigResponse&);
-  ChangeTraceConfigResponse& operator=(const ChangeTraceConfigResponse&);
-  bool operator==(const ChangeTraceConfigResponse&) const;
-  bool operator!=(const ChangeTraceConfigResponse& other) const { return !(*this == other); }
-
-  bool ParseFromArray(const void*, size_t) override;
-  std::string SerializeAsString() const override;
-  std::vector<uint8_t> SerializeAsArray() const override;
-  void Serialize(::protozero::Message*) const;
-
- private:
-
-  // Allows to preserve unknown protobuf fields for compatibility
-  // with future versions of .proto files.
-  std::string unknown_fields_;
-
-  std::bitset<2> _has_field_{};
-};
-
-
-class PERFETTO_EXPORT ChangeTraceConfigRequest : public ::protozero::CppMessageObj {
- public:
-  enum FieldNumbers {
-    kTraceConfigFieldNumber = 1,
-  };
-
-  ChangeTraceConfigRequest();
-  ~ChangeTraceConfigRequest() override;
-  ChangeTraceConfigRequest(ChangeTraceConfigRequest&&) noexcept;
-  ChangeTraceConfigRequest& operator=(ChangeTraceConfigRequest&&);
-  ChangeTraceConfigRequest(const ChangeTraceConfigRequest&);
-  ChangeTraceConfigRequest& operator=(const ChangeTraceConfigRequest&);
-  bool operator==(const ChangeTraceConfigRequest&) const;
-  bool operator!=(const ChangeTraceConfigRequest& other) const { return !(*this == other); }
-
-  bool ParseFromArray(const void*, size_t) override;
-  std::string SerializeAsString() const override;
-  std::vector<uint8_t> SerializeAsArray() const override;
-  void Serialize(::protozero::Message*) const;
-
-  bool has_trace_config() const { return _has_field_[1]; }
-  const TraceConfig& trace_config() const { return *trace_config_; }
-  TraceConfig* mutable_trace_config() { _has_field_.set(1); return trace_config_.get(); }
-
- private:
-  ::protozero::CopyablePtr<TraceConfig> trace_config_;
-
-  // Allows to preserve unknown protobuf fields for compatibility
-  // with future versions of .proto files.
-  std::string unknown_fields_;
-
-  std::bitset<2> _has_field_{};
-};
-
-
-class PERFETTO_EXPORT StartTracingResponse : public ::protozero::CppMessageObj {
- public:
-  enum FieldNumbers {
-  };
-
-  StartTracingResponse();
-  ~StartTracingResponse() override;
-  StartTracingResponse(StartTracingResponse&&) noexcept;
-  StartTracingResponse& operator=(StartTracingResponse&&);
-  StartTracingResponse(const StartTracingResponse&);
-  StartTracingResponse& operator=(const StartTracingResponse&);
-  bool operator==(const StartTracingResponse&) const;
-  bool operator!=(const StartTracingResponse& other) const { return !(*this == other); }
-
-  bool ParseFromArray(const void*, size_t) override;
-  std::string SerializeAsString() const override;
-  std::vector<uint8_t> SerializeAsArray() const override;
-  void Serialize(::protozero::Message*) const;
-
- private:
-
-  // Allows to preserve unknown protobuf fields for compatibility
-  // with future versions of .proto files.
-  std::string unknown_fields_;
-
-  std::bitset<2> _has_field_{};
-};
-
-
-class PERFETTO_EXPORT StartTracingRequest : public ::protozero::CppMessageObj {
- public:
-  enum FieldNumbers {
-  };
-
-  StartTracingRequest();
-  ~StartTracingRequest() override;
-  StartTracingRequest(StartTracingRequest&&) noexcept;
-  StartTracingRequest& operator=(StartTracingRequest&&);
-  StartTracingRequest(const StartTracingRequest&);
-  StartTracingRequest& operator=(const StartTracingRequest&);
-  bool operator==(const StartTracingRequest&) const;
-  bool operator!=(const StartTracingRequest& other) const { return !(*this == other); }
-
-  bool ParseFromArray(const void*, size_t) override;
-  std::string SerializeAsString() const override;
-  std::vector<uint8_t> SerializeAsArray() const override;
-  void Serialize(::protozero::Message*) const;
-
- private:
-
-  // Allows to preserve unknown protobuf fields for compatibility
-  // with future versions of .proto files.
-  std::string unknown_fields_;
-
-  std::bitset<2> _has_field_{};
-};
-
-
-class PERFETTO_EXPORT EnableTracingResponse : public ::protozero::CppMessageObj {
- public:
-  enum FieldNumbers {
-    kDisabledFieldNumber = 1,
-    kErrorFieldNumber = 3,
-  };
-
-  EnableTracingResponse();
-  ~EnableTracingResponse() override;
-  EnableTracingResponse(EnableTracingResponse&&) noexcept;
-  EnableTracingResponse& operator=(EnableTracingResponse&&);
-  EnableTracingResponse(const EnableTracingResponse&);
-  EnableTracingResponse& operator=(const EnableTracingResponse&);
-  bool operator==(const EnableTracingResponse&) const;
-  bool operator!=(const EnableTracingResponse& other) const { return !(*this == other); }
-
-  bool ParseFromArray(const void*, size_t) override;
-  std::string SerializeAsString() const override;
-  std::vector<uint8_t> SerializeAsArray() const override;
-  void Serialize(::protozero::Message*) const;
-
-  bool has_disabled() const { return _has_field_[1]; }
-  bool disabled() const { return disabled_; }
-  void set_disabled(bool value) { disabled_ = value; _has_field_.set(1); }
-
-  bool has_error() const { return _has_field_[3]; }
-  const std::string& error() const { return error_; }
-  void set_error(const std::string& value) { error_ = value; _has_field_.set(3); }
-
- private:
-  bool disabled_{};
-  std::string error_{};
-
-  // Allows to preserve unknown protobuf fields for compatibility
-  // with future versions of .proto files.
-  std::string unknown_fields_;
-
-  std::bitset<4> _has_field_{};
-};
-
-
-class PERFETTO_EXPORT EnableTracingRequest : public ::protozero::CppMessageObj {
- public:
-  enum FieldNumbers {
-    kTraceConfigFieldNumber = 1,
-    kAttachNotificationOnlyFieldNumber = 2,
-  };
-
-  EnableTracingRequest();
-  ~EnableTracingRequest() override;
-  EnableTracingRequest(EnableTracingRequest&&) noexcept;
-  EnableTracingRequest& operator=(EnableTracingRequest&&);
-  EnableTracingRequest(const EnableTracingRequest&);
-  EnableTracingRequest& operator=(const EnableTracingRequest&);
-  bool operator==(const EnableTracingRequest&) const;
-  bool operator!=(const EnableTracingRequest& other) const { return !(*this == other); }
-
-  bool ParseFromArray(const void*, size_t) override;
-  std::string SerializeAsString() const override;
-  std::vector<uint8_t> SerializeAsArray() const override;
-  void Serialize(::protozero::Message*) const;
-
-  bool has_trace_config() const { return _has_field_[1]; }
-  const TraceConfig& trace_config() const { return *trace_config_; }
-  TraceConfig* mutable_trace_config() { _has_field_.set(1); return trace_config_.get(); }
-
-  bool has_attach_notification_only() const { return _has_field_[2]; }
-  bool attach_notification_only() const { return attach_notification_only_; }
-  void set_attach_notification_only(bool value) { attach_notification_only_ = value; _has_field_.set(2); }
-
- private:
-  ::protozero::CopyablePtr<TraceConfig> trace_config_;
-  bool attach_notification_only_{};
-
-  // Allows to preserve unknown protobuf fields for compatibility
-  // with future versions of .proto files.
-  std::string unknown_fields_;
-
-  std::bitset<3> _has_field_{};
-};
-
-}  // namespace perfetto
-}  // namespace protos
-}  // namespace gen
-
-#endif  // PERFETTO_PROTOS_PROTOS_PERFETTO_IPC_CONSUMER_PORT_PROTO_CPP_H_
-// gen_amalgamated expanded: #include "perfetto/protozero/message.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/packed_repeated_fields.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/proto_decoder.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/scattered_heap_buffer.h"
-// DO NOT EDIT. Autogenerated by Perfetto cppgen_plugin
-#if defined(__GNUC__) || defined(__clang__)
-#pragma GCC diagnostic push
-#pragma GCC diagnostic ignored "-Wfloat-equal"
-#endif
-// gen_amalgamated expanded: #include "protos/perfetto/ipc/consumer_port.gen.h"
-// gen_amalgamated expanded: #include "protos/perfetto/config/trace_config.gen.h"
-// gen_amalgamated expanded: #include "protos/perfetto/common/builtin_clock.gen.h"
-// gen_amalgamated expanded: #include "protos/perfetto/config/data_source_config.gen.h"
-// gen_amalgamated expanded: #include "protos/perfetto/config/track_event/track_event_config.gen.h"
-// gen_amalgamated expanded: #include "protos/perfetto/config/test_config.gen.h"
-// gen_amalgamated expanded: #include "protos/perfetto/config/sys_stats/sys_stats_config.gen.h"
-// gen_amalgamated expanded: #include "protos/perfetto/common/sys_stats_counters.gen.h"
-// gen_amalgamated expanded: #include "protos/perfetto/config/profiling/perf_event_config.gen.h"
-// gen_amalgamated expanded: #include "protos/perfetto/common/perf_events.gen.h"
-// gen_amalgamated expanded: #include "protos/perfetto/config/profiling/java_hprof_config.gen.h"
-// gen_amalgamated expanded: #include "protos/perfetto/config/profiling/heapprofd_config.gen.h"
-// gen_amalgamated expanded: #include "protos/perfetto/config/process_stats/process_stats_config.gen.h"
-// gen_amalgamated expanded: #include "protos/perfetto/config/power/android_power_config.gen.h"
-// gen_amalgamated expanded: #include "protos/perfetto/config/interceptor_config.gen.h"
-// gen_amalgamated expanded: #include "protos/perfetto/config/interceptors/console_config.gen.h"
-// gen_amalgamated expanded: #include "protos/perfetto/config/inode_file/inode_file_config.gen.h"
-// gen_amalgamated expanded: #include "protos/perfetto/config/gpu/vulkan_memory_config.gen.h"
-// gen_amalgamated expanded: #include "protos/perfetto/config/gpu/gpu_counter_config.gen.h"
-// gen_amalgamated expanded: #include "protos/perfetto/config/ftrace/ftrace_config.gen.h"
-// gen_amalgamated expanded: #include "protos/perfetto/config/chrome/chrome_config.gen.h"
-// gen_amalgamated expanded: #include "protos/perfetto/config/android/packages_list_config.gen.h"
-// gen_amalgamated expanded: #include "protos/perfetto/config/android/android_polled_state_config.gen.h"
-// gen_amalgamated expanded: #include "protos/perfetto/config/android/android_log_config.gen.h"
-// gen_amalgamated expanded: #include "protos/perfetto/common/android_log_constants.gen.h"
-// gen_amalgamated expanded: #include "protos/perfetto/common/trace_stats.gen.h"
-// gen_amalgamated expanded: #include "protos/perfetto/common/tracing_service_capabilities.gen.h"
-// gen_amalgamated expanded: #include "protos/perfetto/common/observable_events.gen.h"
-// gen_amalgamated expanded: #include "protos/perfetto/common/tracing_service_state.gen.h"
-// gen_amalgamated expanded: #include "protos/perfetto/common/data_source_descriptor.gen.h"
-// gen_amalgamated expanded: #include "protos/perfetto/common/track_event_descriptor.gen.h"
-// gen_amalgamated expanded: #include "protos/perfetto/common/gpu_counter_descriptor.gen.h"
-// gen_amalgamated expanded: #include "protos/perfetto/common/observable_events.gen.h"
-
-namespace perfetto {
-namespace protos {
-namespace gen {
-
-SaveTraceForBugreportResponse::SaveTraceForBugreportResponse() = default;
-SaveTraceForBugreportResponse::~SaveTraceForBugreportResponse() = default;
-SaveTraceForBugreportResponse::SaveTraceForBugreportResponse(const SaveTraceForBugreportResponse&) = default;
-SaveTraceForBugreportResponse& SaveTraceForBugreportResponse::operator=(const SaveTraceForBugreportResponse&) = default;
-SaveTraceForBugreportResponse::SaveTraceForBugreportResponse(SaveTraceForBugreportResponse&&) noexcept = default;
-SaveTraceForBugreportResponse& SaveTraceForBugreportResponse::operator=(SaveTraceForBugreportResponse&&) = default;
-
-bool SaveTraceForBugreportResponse::operator==(const SaveTraceForBugreportResponse& other) const {
-  return unknown_fields_ == other.unknown_fields_
-   && success_ == other.success_
-   && msg_ == other.msg_;
-}
-
-bool SaveTraceForBugreportResponse::ParseFromArray(const void* raw, size_t size) {
-  unknown_fields_.clear();
-  bool packed_error = false;
-
-  ::protozero::ProtoDecoder dec(raw, size);
-  for (auto field = dec.ReadField(); field.valid(); field = dec.ReadField()) {
-    if (field.id() < _has_field_.size()) {
-      _has_field_.set(field.id());
-    }
-    switch (field.id()) {
-      case 1 /* success */:
-        field.get(&success_);
-        break;
-      case 2 /* msg */:
-        field.get(&msg_);
-        break;
-      default:
-        field.SerializeAndAppendTo(&unknown_fields_);
-        break;
-    }
-  }
-  return !packed_error && !dec.bytes_left();
-}
-
-std::string SaveTraceForBugreportResponse::SerializeAsString() const {
-  ::protozero::HeapBuffered<::protozero::Message> msg;
-  Serialize(msg.get());
-  return msg.SerializeAsString();
-}
-
-std::vector<uint8_t> SaveTraceForBugreportResponse::SerializeAsArray() const {
-  ::protozero::HeapBuffered<::protozero::Message> msg;
-  Serialize(msg.get());
-  return msg.SerializeAsArray();
-}
-
-void SaveTraceForBugreportResponse::Serialize(::protozero::Message* msg) const {
-  // Field 1: success
-  if (_has_field_[1]) {
-    msg->AppendTinyVarInt(1, success_);
-  }
-
-  // Field 2: msg
-  if (_has_field_[2]) {
-    msg->AppendString(2, msg_);
-  }
-
-  msg->AppendRawProtoBytes(unknown_fields_.data(), unknown_fields_.size());
-}
-
-
-SaveTraceForBugreportRequest::SaveTraceForBugreportRequest() = default;
-SaveTraceForBugreportRequest::~SaveTraceForBugreportRequest() = default;
-SaveTraceForBugreportRequest::SaveTraceForBugreportRequest(const SaveTraceForBugreportRequest&) = default;
-SaveTraceForBugreportRequest& SaveTraceForBugreportRequest::operator=(const SaveTraceForBugreportRequest&) = default;
-SaveTraceForBugreportRequest::SaveTraceForBugreportRequest(SaveTraceForBugreportRequest&&) noexcept = default;
-SaveTraceForBugreportRequest& SaveTraceForBugreportRequest::operator=(SaveTraceForBugreportRequest&&) = default;
-
-bool SaveTraceForBugreportRequest::operator==(const SaveTraceForBugreportRequest& other) const {
-  return unknown_fields_ == other.unknown_fields_;
-}
-
-bool SaveTraceForBugreportRequest::ParseFromArray(const void* raw, size_t size) {
-  unknown_fields_.clear();
-  bool packed_error = false;
-
-  ::protozero::ProtoDecoder dec(raw, size);
-  for (auto field = dec.ReadField(); field.valid(); field = dec.ReadField()) {
-    if (field.id() < _has_field_.size()) {
-      _has_field_.set(field.id());
-    }
-    switch (field.id()) {
-      default:
-        field.SerializeAndAppendTo(&unknown_fields_);
-        break;
-    }
-  }
-  return !packed_error && !dec.bytes_left();
-}
-
-std::string SaveTraceForBugreportRequest::SerializeAsString() const {
-  ::protozero::HeapBuffered<::protozero::Message> msg;
-  Serialize(msg.get());
-  return msg.SerializeAsString();
-}
-
-std::vector<uint8_t> SaveTraceForBugreportRequest::SerializeAsArray() const {
-  ::protozero::HeapBuffered<::protozero::Message> msg;
-  Serialize(msg.get());
-  return msg.SerializeAsArray();
-}
-
-void SaveTraceForBugreportRequest::Serialize(::protozero::Message* msg) const {
-  msg->AppendRawProtoBytes(unknown_fields_.data(), unknown_fields_.size());
-}
-
-
-QueryCapabilitiesResponse::QueryCapabilitiesResponse() = default;
-QueryCapabilitiesResponse::~QueryCapabilitiesResponse() = default;
-QueryCapabilitiesResponse::QueryCapabilitiesResponse(const QueryCapabilitiesResponse&) = default;
-QueryCapabilitiesResponse& QueryCapabilitiesResponse::operator=(const QueryCapabilitiesResponse&) = default;
-QueryCapabilitiesResponse::QueryCapabilitiesResponse(QueryCapabilitiesResponse&&) noexcept = default;
-QueryCapabilitiesResponse& QueryCapabilitiesResponse::operator=(QueryCapabilitiesResponse&&) = default;
-
-bool QueryCapabilitiesResponse::operator==(const QueryCapabilitiesResponse& other) const {
-  return unknown_fields_ == other.unknown_fields_
-   && capabilities_ == other.capabilities_;
-}
-
-bool QueryCapabilitiesResponse::ParseFromArray(const void* raw, size_t size) {
-  unknown_fields_.clear();
-  bool packed_error = false;
-
-  ::protozero::ProtoDecoder dec(raw, size);
-  for (auto field = dec.ReadField(); field.valid(); field = dec.ReadField()) {
-    if (field.id() < _has_field_.size()) {
-      _has_field_.set(field.id());
-    }
-    switch (field.id()) {
-      case 1 /* capabilities */:
-        (*capabilities_).ParseFromArray(field.data(), field.size());
-        break;
-      default:
-        field.SerializeAndAppendTo(&unknown_fields_);
-        break;
-    }
-  }
-  return !packed_error && !dec.bytes_left();
-}
-
-std::string QueryCapabilitiesResponse::SerializeAsString() const {
-  ::protozero::HeapBuffered<::protozero::Message> msg;
-  Serialize(msg.get());
-  return msg.SerializeAsString();
-}
-
-std::vector<uint8_t> QueryCapabilitiesResponse::SerializeAsArray() const {
-  ::protozero::HeapBuffered<::protozero::Message> msg;
-  Serialize(msg.get());
-  return msg.SerializeAsArray();
-}
-
-void QueryCapabilitiesResponse::Serialize(::protozero::Message* msg) const {
-  // Field 1: capabilities
-  if (_has_field_[1]) {
-    (*capabilities_).Serialize(msg->BeginNestedMessage<::protozero::Message>(1));
-  }
-
-  msg->AppendRawProtoBytes(unknown_fields_.data(), unknown_fields_.size());
-}
-
-
-QueryCapabilitiesRequest::QueryCapabilitiesRequest() = default;
-QueryCapabilitiesRequest::~QueryCapabilitiesRequest() = default;
-QueryCapabilitiesRequest::QueryCapabilitiesRequest(const QueryCapabilitiesRequest&) = default;
-QueryCapabilitiesRequest& QueryCapabilitiesRequest::operator=(const QueryCapabilitiesRequest&) = default;
-QueryCapabilitiesRequest::QueryCapabilitiesRequest(QueryCapabilitiesRequest&&) noexcept = default;
-QueryCapabilitiesRequest& QueryCapabilitiesRequest::operator=(QueryCapabilitiesRequest&&) = default;
-
-bool QueryCapabilitiesRequest::operator==(const QueryCapabilitiesRequest& other) const {
-  return unknown_fields_ == other.unknown_fields_;
-}
-
-bool QueryCapabilitiesRequest::ParseFromArray(const void* raw, size_t size) {
-  unknown_fields_.clear();
-  bool packed_error = false;
-
-  ::protozero::ProtoDecoder dec(raw, size);
-  for (auto field = dec.ReadField(); field.valid(); field = dec.ReadField()) {
-    if (field.id() < _has_field_.size()) {
-      _has_field_.set(field.id());
-    }
-    switch (field.id()) {
-      default:
-        field.SerializeAndAppendTo(&unknown_fields_);
-        break;
-    }
-  }
-  return !packed_error && !dec.bytes_left();
-}
-
-std::string QueryCapabilitiesRequest::SerializeAsString() const {
-  ::protozero::HeapBuffered<::protozero::Message> msg;
-  Serialize(msg.get());
-  return msg.SerializeAsString();
-}
-
-std::vector<uint8_t> QueryCapabilitiesRequest::SerializeAsArray() const {
-  ::protozero::HeapBuffered<::protozero::Message> msg;
-  Serialize(msg.get());
-  return msg.SerializeAsArray();
-}
-
-void QueryCapabilitiesRequest::Serialize(::protozero::Message* msg) const {
-  msg->AppendRawProtoBytes(unknown_fields_.data(), unknown_fields_.size());
-}
-
-
-QueryServiceStateResponse::QueryServiceStateResponse() = default;
-QueryServiceStateResponse::~QueryServiceStateResponse() = default;
-QueryServiceStateResponse::QueryServiceStateResponse(const QueryServiceStateResponse&) = default;
-QueryServiceStateResponse& QueryServiceStateResponse::operator=(const QueryServiceStateResponse&) = default;
-QueryServiceStateResponse::QueryServiceStateResponse(QueryServiceStateResponse&&) noexcept = default;
-QueryServiceStateResponse& QueryServiceStateResponse::operator=(QueryServiceStateResponse&&) = default;
-
-bool QueryServiceStateResponse::operator==(const QueryServiceStateResponse& other) const {
-  return unknown_fields_ == other.unknown_fields_
-   && service_state_ == other.service_state_;
-}
-
-bool QueryServiceStateResponse::ParseFromArray(const void* raw, size_t size) {
-  unknown_fields_.clear();
-  bool packed_error = false;
-
-  ::protozero::ProtoDecoder dec(raw, size);
-  for (auto field = dec.ReadField(); field.valid(); field = dec.ReadField()) {
-    if (field.id() < _has_field_.size()) {
-      _has_field_.set(field.id());
-    }
-    switch (field.id()) {
-      case 1 /* service_state */:
-        (*service_state_).ParseFromArray(field.data(), field.size());
-        break;
-      default:
-        field.SerializeAndAppendTo(&unknown_fields_);
-        break;
-    }
-  }
-  return !packed_error && !dec.bytes_left();
-}
-
-std::string QueryServiceStateResponse::SerializeAsString() const {
-  ::protozero::HeapBuffered<::protozero::Message> msg;
-  Serialize(msg.get());
-  return msg.SerializeAsString();
-}
-
-std::vector<uint8_t> QueryServiceStateResponse::SerializeAsArray() const {
-  ::protozero::HeapBuffered<::protozero::Message> msg;
-  Serialize(msg.get());
-  return msg.SerializeAsArray();
-}
-
-void QueryServiceStateResponse::Serialize(::protozero::Message* msg) const {
-  // Field 1: service_state
-  if (_has_field_[1]) {
-    (*service_state_).Serialize(msg->BeginNestedMessage<::protozero::Message>(1));
-  }
-
-  msg->AppendRawProtoBytes(unknown_fields_.data(), unknown_fields_.size());
-}
-
-
-QueryServiceStateRequest::QueryServiceStateRequest() = default;
-QueryServiceStateRequest::~QueryServiceStateRequest() = default;
-QueryServiceStateRequest::QueryServiceStateRequest(const QueryServiceStateRequest&) = default;
-QueryServiceStateRequest& QueryServiceStateRequest::operator=(const QueryServiceStateRequest&) = default;
-QueryServiceStateRequest::QueryServiceStateRequest(QueryServiceStateRequest&&) noexcept = default;
-QueryServiceStateRequest& QueryServiceStateRequest::operator=(QueryServiceStateRequest&&) = default;
-
-bool QueryServiceStateRequest::operator==(const QueryServiceStateRequest& other) const {
-  return unknown_fields_ == other.unknown_fields_;
-}
-
-bool QueryServiceStateRequest::ParseFromArray(const void* raw, size_t size) {
-  unknown_fields_.clear();
-  bool packed_error = false;
-
-  ::protozero::ProtoDecoder dec(raw, size);
-  for (auto field = dec.ReadField(); field.valid(); field = dec.ReadField()) {
-    if (field.id() < _has_field_.size()) {
-      _has_field_.set(field.id());
-    }
-    switch (field.id()) {
-      default:
-        field.SerializeAndAppendTo(&unknown_fields_);
-        break;
-    }
-  }
-  return !packed_error && !dec.bytes_left();
-}
-
-std::string QueryServiceStateRequest::SerializeAsString() const {
-  ::protozero::HeapBuffered<::protozero::Message> msg;
-  Serialize(msg.get());
-  return msg.SerializeAsString();
-}
-
-std::vector<uint8_t> QueryServiceStateRequest::SerializeAsArray() const {
-  ::protozero::HeapBuffered<::protozero::Message> msg;
-  Serialize(msg.get());
-  return msg.SerializeAsArray();
-}
-
-void QueryServiceStateRequest::Serialize(::protozero::Message* msg) const {
-  msg->AppendRawProtoBytes(unknown_fields_.data(), unknown_fields_.size());
-}
-
-
-ObserveEventsResponse::ObserveEventsResponse() = default;
-ObserveEventsResponse::~ObserveEventsResponse() = default;
-ObserveEventsResponse::ObserveEventsResponse(const ObserveEventsResponse&) = default;
-ObserveEventsResponse& ObserveEventsResponse::operator=(const ObserveEventsResponse&) = default;
-ObserveEventsResponse::ObserveEventsResponse(ObserveEventsResponse&&) noexcept = default;
-ObserveEventsResponse& ObserveEventsResponse::operator=(ObserveEventsResponse&&) = default;
-
-bool ObserveEventsResponse::operator==(const ObserveEventsResponse& other) const {
-  return unknown_fields_ == other.unknown_fields_
-   && events_ == other.events_;
-}
-
-bool ObserveEventsResponse::ParseFromArray(const void* raw, size_t size) {
-  unknown_fields_.clear();
-  bool packed_error = false;
-
-  ::protozero::ProtoDecoder dec(raw, size);
-  for (auto field = dec.ReadField(); field.valid(); field = dec.ReadField()) {
-    if (field.id() < _has_field_.size()) {
-      _has_field_.set(field.id());
-    }
-    switch (field.id()) {
-      case 1 /* events */:
-        (*events_).ParseFromArray(field.data(), field.size());
-        break;
-      default:
-        field.SerializeAndAppendTo(&unknown_fields_);
-        break;
-    }
-  }
-  return !packed_error && !dec.bytes_left();
-}
-
-std::string ObserveEventsResponse::SerializeAsString() const {
-  ::protozero::HeapBuffered<::protozero::Message> msg;
-  Serialize(msg.get());
-  return msg.SerializeAsString();
-}
-
-std::vector<uint8_t> ObserveEventsResponse::SerializeAsArray() const {
-  ::protozero::HeapBuffered<::protozero::Message> msg;
-  Serialize(msg.get());
-  return msg.SerializeAsArray();
-}
-
-void ObserveEventsResponse::Serialize(::protozero::Message* msg) const {
-  // Field 1: events
-  if (_has_field_[1]) {
-    (*events_).Serialize(msg->BeginNestedMessage<::protozero::Message>(1));
-  }
-
-  msg->AppendRawProtoBytes(unknown_fields_.data(), unknown_fields_.size());
-}
-
-
-ObserveEventsRequest::ObserveEventsRequest() = default;
-ObserveEventsRequest::~ObserveEventsRequest() = default;
-ObserveEventsRequest::ObserveEventsRequest(const ObserveEventsRequest&) = default;
-ObserveEventsRequest& ObserveEventsRequest::operator=(const ObserveEventsRequest&) = default;
-ObserveEventsRequest::ObserveEventsRequest(ObserveEventsRequest&&) noexcept = default;
-ObserveEventsRequest& ObserveEventsRequest::operator=(ObserveEventsRequest&&) = default;
-
-bool ObserveEventsRequest::operator==(const ObserveEventsRequest& other) const {
-  return unknown_fields_ == other.unknown_fields_
-   && events_to_observe_ == other.events_to_observe_;
-}
-
-bool ObserveEventsRequest::ParseFromArray(const void* raw, size_t size) {
-  events_to_observe_.clear();
-  unknown_fields_.clear();
-  bool packed_error = false;
-
-  ::protozero::ProtoDecoder dec(raw, size);
-  for (auto field = dec.ReadField(); field.valid(); field = dec.ReadField()) {
-    if (field.id() < _has_field_.size()) {
-      _has_field_.set(field.id());
-    }
-    switch (field.id()) {
-      case 1 /* events_to_observe */:
-        events_to_observe_.emplace_back();
-        field.get(&events_to_observe_.back());
-        break;
-      default:
-        field.SerializeAndAppendTo(&unknown_fields_);
-        break;
-    }
-  }
-  return !packed_error && !dec.bytes_left();
-}
-
-std::string ObserveEventsRequest::SerializeAsString() const {
-  ::protozero::HeapBuffered<::protozero::Message> msg;
-  Serialize(msg.get());
-  return msg.SerializeAsString();
-}
-
-std::vector<uint8_t> ObserveEventsRequest::SerializeAsArray() const {
-  ::protozero::HeapBuffered<::protozero::Message> msg;
-  Serialize(msg.get());
-  return msg.SerializeAsArray();
-}
-
-void ObserveEventsRequest::Serialize(::protozero::Message* msg) const {
-  // Field 1: events_to_observe
-  for (auto& it : events_to_observe_) {
-    msg->AppendVarInt(1, it);
-  }
-
-  msg->AppendRawProtoBytes(unknown_fields_.data(), unknown_fields_.size());
-}
-
-
-GetTraceStatsResponse::GetTraceStatsResponse() = default;
-GetTraceStatsResponse::~GetTraceStatsResponse() = default;
-GetTraceStatsResponse::GetTraceStatsResponse(const GetTraceStatsResponse&) = default;
-GetTraceStatsResponse& GetTraceStatsResponse::operator=(const GetTraceStatsResponse&) = default;
-GetTraceStatsResponse::GetTraceStatsResponse(GetTraceStatsResponse&&) noexcept = default;
-GetTraceStatsResponse& GetTraceStatsResponse::operator=(GetTraceStatsResponse&&) = default;
-
-bool GetTraceStatsResponse::operator==(const GetTraceStatsResponse& other) const {
-  return unknown_fields_ == other.unknown_fields_
-   && trace_stats_ == other.trace_stats_;
-}
-
-bool GetTraceStatsResponse::ParseFromArray(const void* raw, size_t size) {
-  unknown_fields_.clear();
-  bool packed_error = false;
-
-  ::protozero::ProtoDecoder dec(raw, size);
-  for (auto field = dec.ReadField(); field.valid(); field = dec.ReadField()) {
-    if (field.id() < _has_field_.size()) {
-      _has_field_.set(field.id());
-    }
-    switch (field.id()) {
-      case 1 /* trace_stats */:
-        (*trace_stats_).ParseFromArray(field.data(), field.size());
-        break;
-      default:
-        field.SerializeAndAppendTo(&unknown_fields_);
-        break;
-    }
-  }
-  return !packed_error && !dec.bytes_left();
-}
-
-std::string GetTraceStatsResponse::SerializeAsString() const {
-  ::protozero::HeapBuffered<::protozero::Message> msg;
-  Serialize(msg.get());
-  return msg.SerializeAsString();
-}
-
-std::vector<uint8_t> GetTraceStatsResponse::SerializeAsArray() const {
-  ::protozero::HeapBuffered<::protozero::Message> msg;
-  Serialize(msg.get());
-  return msg.SerializeAsArray();
-}
-
-void GetTraceStatsResponse::Serialize(::protozero::Message* msg) const {
-  // Field 1: trace_stats
-  if (_has_field_[1]) {
-    (*trace_stats_).Serialize(msg->BeginNestedMessage<::protozero::Message>(1));
-  }
-
-  msg->AppendRawProtoBytes(unknown_fields_.data(), unknown_fields_.size());
-}
-
-
-GetTraceStatsRequest::GetTraceStatsRequest() = default;
-GetTraceStatsRequest::~GetTraceStatsRequest() = default;
-GetTraceStatsRequest::GetTraceStatsRequest(const GetTraceStatsRequest&) = default;
-GetTraceStatsRequest& GetTraceStatsRequest::operator=(const GetTraceStatsRequest&) = default;
-GetTraceStatsRequest::GetTraceStatsRequest(GetTraceStatsRequest&&) noexcept = default;
-GetTraceStatsRequest& GetTraceStatsRequest::operator=(GetTraceStatsRequest&&) = default;
-
-bool GetTraceStatsRequest::operator==(const GetTraceStatsRequest& other) const {
-  return unknown_fields_ == other.unknown_fields_;
-}
-
-bool GetTraceStatsRequest::ParseFromArray(const void* raw, size_t size) {
-  unknown_fields_.clear();
-  bool packed_error = false;
-
-  ::protozero::ProtoDecoder dec(raw, size);
-  for (auto field = dec.ReadField(); field.valid(); field = dec.ReadField()) {
-    if (field.id() < _has_field_.size()) {
-      _has_field_.set(field.id());
-    }
-    switch (field.id()) {
-      default:
-        field.SerializeAndAppendTo(&unknown_fields_);
-        break;
-    }
-  }
-  return !packed_error && !dec.bytes_left();
-}
-
-std::string GetTraceStatsRequest::SerializeAsString() const {
-  ::protozero::HeapBuffered<::protozero::Message> msg;
-  Serialize(msg.get());
-  return msg.SerializeAsString();
-}
-
-std::vector<uint8_t> GetTraceStatsRequest::SerializeAsArray() const {
-  ::protozero::HeapBuffered<::protozero::Message> msg;
-  Serialize(msg.get());
-  return msg.SerializeAsArray();
-}
-
-void GetTraceStatsRequest::Serialize(::protozero::Message* msg) const {
-  msg->AppendRawProtoBytes(unknown_fields_.data(), unknown_fields_.size());
-}
-
-
-AttachResponse::AttachResponse() = default;
-AttachResponse::~AttachResponse() = default;
-AttachResponse::AttachResponse(const AttachResponse&) = default;
-AttachResponse& AttachResponse::operator=(const AttachResponse&) = default;
-AttachResponse::AttachResponse(AttachResponse&&) noexcept = default;
-AttachResponse& AttachResponse::operator=(AttachResponse&&) = default;
-
-bool AttachResponse::operator==(const AttachResponse& other) const {
-  return unknown_fields_ == other.unknown_fields_
-   && trace_config_ == other.trace_config_;
-}
-
-bool AttachResponse::ParseFromArray(const void* raw, size_t size) {
-  unknown_fields_.clear();
-  bool packed_error = false;
-
-  ::protozero::ProtoDecoder dec(raw, size);
-  for (auto field = dec.ReadField(); field.valid(); field = dec.ReadField()) {
-    if (field.id() < _has_field_.size()) {
-      _has_field_.set(field.id());
-    }
-    switch (field.id()) {
-      case 1 /* trace_config */:
-        (*trace_config_).ParseFromArray(field.data(), field.size());
-        break;
-      default:
-        field.SerializeAndAppendTo(&unknown_fields_);
-        break;
-    }
-  }
-  return !packed_error && !dec.bytes_left();
-}
-
-std::string AttachResponse::SerializeAsString() const {
-  ::protozero::HeapBuffered<::protozero::Message> msg;
-  Serialize(msg.get());
-  return msg.SerializeAsString();
-}
-
-std::vector<uint8_t> AttachResponse::SerializeAsArray() const {
-  ::protozero::HeapBuffered<::protozero::Message> msg;
-  Serialize(msg.get());
-  return msg.SerializeAsArray();
-}
-
-void AttachResponse::Serialize(::protozero::Message* msg) const {
-  // Field 1: trace_config
-  if (_has_field_[1]) {
-    (*trace_config_).Serialize(msg->BeginNestedMessage<::protozero::Message>(1));
-  }
-
-  msg->AppendRawProtoBytes(unknown_fields_.data(), unknown_fields_.size());
-}
-
-
-AttachRequest::AttachRequest() = default;
-AttachRequest::~AttachRequest() = default;
-AttachRequest::AttachRequest(const AttachRequest&) = default;
-AttachRequest& AttachRequest::operator=(const AttachRequest&) = default;
-AttachRequest::AttachRequest(AttachRequest&&) noexcept = default;
-AttachRequest& AttachRequest::operator=(AttachRequest&&) = default;
-
-bool AttachRequest::operator==(const AttachRequest& other) const {
-  return unknown_fields_ == other.unknown_fields_
-   && key_ == other.key_;
-}
-
-bool AttachRequest::ParseFromArray(const void* raw, size_t size) {
-  unknown_fields_.clear();
-  bool packed_error = false;
-
-  ::protozero::ProtoDecoder dec(raw, size);
-  for (auto field = dec.ReadField(); field.valid(); field = dec.ReadField()) {
-    if (field.id() < _has_field_.size()) {
-      _has_field_.set(field.id());
-    }
-    switch (field.id()) {
-      case 1 /* key */:
-        field.get(&key_);
-        break;
-      default:
-        field.SerializeAndAppendTo(&unknown_fields_);
-        break;
-    }
-  }
-  return !packed_error && !dec.bytes_left();
-}
-
-std::string AttachRequest::SerializeAsString() const {
-  ::protozero::HeapBuffered<::protozero::Message> msg;
-  Serialize(msg.get());
-  return msg.SerializeAsString();
-}
-
-std::vector<uint8_t> AttachRequest::SerializeAsArray() const {
-  ::protozero::HeapBuffered<::protozero::Message> msg;
-  Serialize(msg.get());
-  return msg.SerializeAsArray();
-}
-
-void AttachRequest::Serialize(::protozero::Message* msg) const {
-  // Field 1: key
-  if (_has_field_[1]) {
-    msg->AppendString(1, key_);
-  }
-
-  msg->AppendRawProtoBytes(unknown_fields_.data(), unknown_fields_.size());
-}
-
-
-DetachResponse::DetachResponse() = default;
-DetachResponse::~DetachResponse() = default;
-DetachResponse::DetachResponse(const DetachResponse&) = default;
-DetachResponse& DetachResponse::operator=(const DetachResponse&) = default;
-DetachResponse::DetachResponse(DetachResponse&&) noexcept = default;
-DetachResponse& DetachResponse::operator=(DetachResponse&&) = default;
-
-bool DetachResponse::operator==(const DetachResponse& other) const {
-  return unknown_fields_ == other.unknown_fields_;
-}
-
-bool DetachResponse::ParseFromArray(const void* raw, size_t size) {
-  unknown_fields_.clear();
-  bool packed_error = false;
-
-  ::protozero::ProtoDecoder dec(raw, size);
-  for (auto field = dec.ReadField(); field.valid(); field = dec.ReadField()) {
-    if (field.id() < _has_field_.size()) {
-      _has_field_.set(field.id());
-    }
-    switch (field.id()) {
-      default:
-        field.SerializeAndAppendTo(&unknown_fields_);
-        break;
-    }
-  }
-  return !packed_error && !dec.bytes_left();
-}
-
-std::string DetachResponse::SerializeAsString() const {
-  ::protozero::HeapBuffered<::protozero::Message> msg;
-  Serialize(msg.get());
-  return msg.SerializeAsString();
-}
-
-std::vector<uint8_t> DetachResponse::SerializeAsArray() const {
-  ::protozero::HeapBuffered<::protozero::Message> msg;
-  Serialize(msg.get());
-  return msg.SerializeAsArray();
-}
-
-void DetachResponse::Serialize(::protozero::Message* msg) const {
-  msg->AppendRawProtoBytes(unknown_fields_.data(), unknown_fields_.size());
-}
-
-
-DetachRequest::DetachRequest() = default;
-DetachRequest::~DetachRequest() = default;
-DetachRequest::DetachRequest(const DetachRequest&) = default;
-DetachRequest& DetachRequest::operator=(const DetachRequest&) = default;
-DetachRequest::DetachRequest(DetachRequest&&) noexcept = default;
-DetachRequest& DetachRequest::operator=(DetachRequest&&) = default;
-
-bool DetachRequest::operator==(const DetachRequest& other) const {
-  return unknown_fields_ == other.unknown_fields_
-   && key_ == other.key_;
-}
-
-bool DetachRequest::ParseFromArray(const void* raw, size_t size) {
-  unknown_fields_.clear();
-  bool packed_error = false;
-
-  ::protozero::ProtoDecoder dec(raw, size);
-  for (auto field = dec.ReadField(); field.valid(); field = dec.ReadField()) {
-    if (field.id() < _has_field_.size()) {
-      _has_field_.set(field.id());
-    }
-    switch (field.id()) {
-      case 1 /* key */:
-        field.get(&key_);
-        break;
-      default:
-        field.SerializeAndAppendTo(&unknown_fields_);
-        break;
-    }
-  }
-  return !packed_error && !dec.bytes_left();
-}
-
-std::string DetachRequest::SerializeAsString() const {
-  ::protozero::HeapBuffered<::protozero::Message> msg;
-  Serialize(msg.get());
-  return msg.SerializeAsString();
-}
-
-std::vector<uint8_t> DetachRequest::SerializeAsArray() const {
-  ::protozero::HeapBuffered<::protozero::Message> msg;
-  Serialize(msg.get());
-  return msg.SerializeAsArray();
-}
-
-void DetachRequest::Serialize(::protozero::Message* msg) const {
-  // Field 1: key
-  if (_has_field_[1]) {
-    msg->AppendString(1, key_);
-  }
-
-  msg->AppendRawProtoBytes(unknown_fields_.data(), unknown_fields_.size());
-}
-
-
-FlushResponse::FlushResponse() = default;
-FlushResponse::~FlushResponse() = default;
-FlushResponse::FlushResponse(const FlushResponse&) = default;
-FlushResponse& FlushResponse::operator=(const FlushResponse&) = default;
-FlushResponse::FlushResponse(FlushResponse&&) noexcept = default;
-FlushResponse& FlushResponse::operator=(FlushResponse&&) = default;
-
-bool FlushResponse::operator==(const FlushResponse& other) const {
-  return unknown_fields_ == other.unknown_fields_;
-}
-
-bool FlushResponse::ParseFromArray(const void* raw, size_t size) {
-  unknown_fields_.clear();
-  bool packed_error = false;
-
-  ::protozero::ProtoDecoder dec(raw, size);
-  for (auto field = dec.ReadField(); field.valid(); field = dec.ReadField()) {
-    if (field.id() < _has_field_.size()) {
-      _has_field_.set(field.id());
-    }
-    switch (field.id()) {
-      default:
-        field.SerializeAndAppendTo(&unknown_fields_);
-        break;
-    }
-  }
-  return !packed_error && !dec.bytes_left();
-}
-
-std::string FlushResponse::SerializeAsString() const {
-  ::protozero::HeapBuffered<::protozero::Message> msg;
-  Serialize(msg.get());
-  return msg.SerializeAsString();
-}
-
-std::vector<uint8_t> FlushResponse::SerializeAsArray() const {
-  ::protozero::HeapBuffered<::protozero::Message> msg;
-  Serialize(msg.get());
-  return msg.SerializeAsArray();
-}
-
-void FlushResponse::Serialize(::protozero::Message* msg) const {
-  msg->AppendRawProtoBytes(unknown_fields_.data(), unknown_fields_.size());
-}
-
-
-FlushRequest::FlushRequest() = default;
-FlushRequest::~FlushRequest() = default;
-FlushRequest::FlushRequest(const FlushRequest&) = default;
-FlushRequest& FlushRequest::operator=(const FlushRequest&) = default;
-FlushRequest::FlushRequest(FlushRequest&&) noexcept = default;
-FlushRequest& FlushRequest::operator=(FlushRequest&&) = default;
-
-bool FlushRequest::operator==(const FlushRequest& other) const {
-  return unknown_fields_ == other.unknown_fields_
-   && timeout_ms_ == other.timeout_ms_;
-}
-
-bool FlushRequest::ParseFromArray(const void* raw, size_t size) {
-  unknown_fields_.clear();
-  bool packed_error = false;
-
-  ::protozero::ProtoDecoder dec(raw, size);
-  for (auto field = dec.ReadField(); field.valid(); field = dec.ReadField()) {
-    if (field.id() < _has_field_.size()) {
-      _has_field_.set(field.id());
-    }
-    switch (field.id()) {
-      case 1 /* timeout_ms */:
-        field.get(&timeout_ms_);
-        break;
-      default:
-        field.SerializeAndAppendTo(&unknown_fields_);
-        break;
-    }
-  }
-  return !packed_error && !dec.bytes_left();
-}
-
-std::string FlushRequest::SerializeAsString() const {
-  ::protozero::HeapBuffered<::protozero::Message> msg;
-  Serialize(msg.get());
-  return msg.SerializeAsString();
-}
-
-std::vector<uint8_t> FlushRequest::SerializeAsArray() const {
-  ::protozero::HeapBuffered<::protozero::Message> msg;
-  Serialize(msg.get());
-  return msg.SerializeAsArray();
-}
-
-void FlushRequest::Serialize(::protozero::Message* msg) const {
-  // Field 1: timeout_ms
-  if (_has_field_[1]) {
-    msg->AppendVarInt(1, timeout_ms_);
-  }
-
-  msg->AppendRawProtoBytes(unknown_fields_.data(), unknown_fields_.size());
-}
-
-
-FreeBuffersResponse::FreeBuffersResponse() = default;
-FreeBuffersResponse::~FreeBuffersResponse() = default;
-FreeBuffersResponse::FreeBuffersResponse(const FreeBuffersResponse&) = default;
-FreeBuffersResponse& FreeBuffersResponse::operator=(const FreeBuffersResponse&) = default;
-FreeBuffersResponse::FreeBuffersResponse(FreeBuffersResponse&&) noexcept = default;
-FreeBuffersResponse& FreeBuffersResponse::operator=(FreeBuffersResponse&&) = default;
-
-bool FreeBuffersResponse::operator==(const FreeBuffersResponse& other) const {
-  return unknown_fields_ == other.unknown_fields_;
-}
-
-bool FreeBuffersResponse::ParseFromArray(const void* raw, size_t size) {
-  unknown_fields_.clear();
-  bool packed_error = false;
-
-  ::protozero::ProtoDecoder dec(raw, size);
-  for (auto field = dec.ReadField(); field.valid(); field = dec.ReadField()) {
-    if (field.id() < _has_field_.size()) {
-      _has_field_.set(field.id());
-    }
-    switch (field.id()) {
-      default:
-        field.SerializeAndAppendTo(&unknown_fields_);
-        break;
-    }
-  }
-  return !packed_error && !dec.bytes_left();
-}
-
-std::string FreeBuffersResponse::SerializeAsString() const {
-  ::protozero::HeapBuffered<::protozero::Message> msg;
-  Serialize(msg.get());
-  return msg.SerializeAsString();
-}
-
-std::vector<uint8_t> FreeBuffersResponse::SerializeAsArray() const {
-  ::protozero::HeapBuffered<::protozero::Message> msg;
-  Serialize(msg.get());
-  return msg.SerializeAsArray();
-}
-
-void FreeBuffersResponse::Serialize(::protozero::Message* msg) const {
-  msg->AppendRawProtoBytes(unknown_fields_.data(), unknown_fields_.size());
-}
-
-
-FreeBuffersRequest::FreeBuffersRequest() = default;
-FreeBuffersRequest::~FreeBuffersRequest() = default;
-FreeBuffersRequest::FreeBuffersRequest(const FreeBuffersRequest&) = default;
-FreeBuffersRequest& FreeBuffersRequest::operator=(const FreeBuffersRequest&) = default;
-FreeBuffersRequest::FreeBuffersRequest(FreeBuffersRequest&&) noexcept = default;
-FreeBuffersRequest& FreeBuffersRequest::operator=(FreeBuffersRequest&&) = default;
-
-bool FreeBuffersRequest::operator==(const FreeBuffersRequest& other) const {
-  return unknown_fields_ == other.unknown_fields_
-   && buffer_ids_ == other.buffer_ids_;
-}
-
-bool FreeBuffersRequest::ParseFromArray(const void* raw, size_t size) {
-  buffer_ids_.clear();
-  unknown_fields_.clear();
-  bool packed_error = false;
-
-  ::protozero::ProtoDecoder dec(raw, size);
-  for (auto field = dec.ReadField(); field.valid(); field = dec.ReadField()) {
-    if (field.id() < _has_field_.size()) {
-      _has_field_.set(field.id());
-    }
-    switch (field.id()) {
-      case 1 /* buffer_ids */:
-        buffer_ids_.emplace_back();
-        field.get(&buffer_ids_.back());
-        break;
-      default:
-        field.SerializeAndAppendTo(&unknown_fields_);
-        break;
-    }
-  }
-  return !packed_error && !dec.bytes_left();
-}
-
-std::string FreeBuffersRequest::SerializeAsString() const {
-  ::protozero::HeapBuffered<::protozero::Message> msg;
-  Serialize(msg.get());
-  return msg.SerializeAsString();
-}
-
-std::vector<uint8_t> FreeBuffersRequest::SerializeAsArray() const {
-  ::protozero::HeapBuffered<::protozero::Message> msg;
-  Serialize(msg.get());
-  return msg.SerializeAsArray();
-}
-
-void FreeBuffersRequest::Serialize(::protozero::Message* msg) const {
-  // Field 1: buffer_ids
-  for (auto& it : buffer_ids_) {
-    msg->AppendVarInt(1, it);
-  }
-
-  msg->AppendRawProtoBytes(unknown_fields_.data(), unknown_fields_.size());
-}
-
-
-ReadBuffersResponse::ReadBuffersResponse() = default;
-ReadBuffersResponse::~ReadBuffersResponse() = default;
-ReadBuffersResponse::ReadBuffersResponse(const ReadBuffersResponse&) = default;
-ReadBuffersResponse& ReadBuffersResponse::operator=(const ReadBuffersResponse&) = default;
-ReadBuffersResponse::ReadBuffersResponse(ReadBuffersResponse&&) noexcept = default;
-ReadBuffersResponse& ReadBuffersResponse::operator=(ReadBuffersResponse&&) = default;
-
-bool ReadBuffersResponse::operator==(const ReadBuffersResponse& other) const {
-  return unknown_fields_ == other.unknown_fields_
-   && slices_ == other.slices_;
-}
-
-int ReadBuffersResponse::slices_size() const { return static_cast<int>(slices_.size()); }
-void ReadBuffersResponse::clear_slices() { slices_.clear(); }
-ReadBuffersResponse_Slice* ReadBuffersResponse::add_slices() { slices_.emplace_back(); return &slices_.back(); }
-bool ReadBuffersResponse::ParseFromArray(const void* raw, size_t size) {
-  slices_.clear();
-  unknown_fields_.clear();
-  bool packed_error = false;
-
-  ::protozero::ProtoDecoder dec(raw, size);
-  for (auto field = dec.ReadField(); field.valid(); field = dec.ReadField()) {
-    if (field.id() < _has_field_.size()) {
-      _has_field_.set(field.id());
-    }
-    switch (field.id()) {
-      case 2 /* slices */:
-        slices_.emplace_back();
-        slices_.back().ParseFromArray(field.data(), field.size());
-        break;
-      default:
-        field.SerializeAndAppendTo(&unknown_fields_);
-        break;
-    }
-  }
-  return !packed_error && !dec.bytes_left();
-}
-
-std::string ReadBuffersResponse::SerializeAsString() const {
-  ::protozero::HeapBuffered<::protozero::Message> msg;
-  Serialize(msg.get());
-  return msg.SerializeAsString();
-}
-
-std::vector<uint8_t> ReadBuffersResponse::SerializeAsArray() const {
-  ::protozero::HeapBuffered<::protozero::Message> msg;
-  Serialize(msg.get());
-  return msg.SerializeAsArray();
-}
-
-void ReadBuffersResponse::Serialize(::protozero::Message* msg) const {
-  // Field 2: slices
-  for (auto& it : slices_) {
-    it.Serialize(msg->BeginNestedMessage<::protozero::Message>(2));
-  }
-
-  msg->AppendRawProtoBytes(unknown_fields_.data(), unknown_fields_.size());
-}
-
-
-ReadBuffersResponse_Slice::ReadBuffersResponse_Slice() = default;
-ReadBuffersResponse_Slice::~ReadBuffersResponse_Slice() = default;
-ReadBuffersResponse_Slice::ReadBuffersResponse_Slice(const ReadBuffersResponse_Slice&) = default;
-ReadBuffersResponse_Slice& ReadBuffersResponse_Slice::operator=(const ReadBuffersResponse_Slice&) = default;
-ReadBuffersResponse_Slice::ReadBuffersResponse_Slice(ReadBuffersResponse_Slice&&) noexcept = default;
-ReadBuffersResponse_Slice& ReadBuffersResponse_Slice::operator=(ReadBuffersResponse_Slice&&) = default;
-
-bool ReadBuffersResponse_Slice::operator==(const ReadBuffersResponse_Slice& other) const {
-  return unknown_fields_ == other.unknown_fields_
-   && data_ == other.data_
-   && last_slice_for_packet_ == other.last_slice_for_packet_;
-}
-
-bool ReadBuffersResponse_Slice::ParseFromArray(const void* raw, size_t size) {
-  unknown_fields_.clear();
-  bool packed_error = false;
-
-  ::protozero::ProtoDecoder dec(raw, size);
-  for (auto field = dec.ReadField(); field.valid(); field = dec.ReadField()) {
-    if (field.id() < _has_field_.size()) {
-      _has_field_.set(field.id());
-    }
-    switch (field.id()) {
-      case 1 /* data */:
-        field.get(&data_);
-        break;
-      case 2 /* last_slice_for_packet */:
-        field.get(&last_slice_for_packet_);
-        break;
-      default:
-        field.SerializeAndAppendTo(&unknown_fields_);
-        break;
-    }
-  }
-  return !packed_error && !dec.bytes_left();
-}
-
-std::string ReadBuffersResponse_Slice::SerializeAsString() const {
-  ::protozero::HeapBuffered<::protozero::Message> msg;
-  Serialize(msg.get());
-  return msg.SerializeAsString();
-}
-
-std::vector<uint8_t> ReadBuffersResponse_Slice::SerializeAsArray() const {
-  ::protozero::HeapBuffered<::protozero::Message> msg;
-  Serialize(msg.get());
-  return msg.SerializeAsArray();
-}
-
-void ReadBuffersResponse_Slice::Serialize(::protozero::Message* msg) const {
-  // Field 1: data
-  if (_has_field_[1]) {
-    msg->AppendString(1, data_);
-  }
-
-  // Field 2: last_slice_for_packet
-  if (_has_field_[2]) {
-    msg->AppendTinyVarInt(2, last_slice_for_packet_);
-  }
-
-  msg->AppendRawProtoBytes(unknown_fields_.data(), unknown_fields_.size());
-}
-
-
-ReadBuffersRequest::ReadBuffersRequest() = default;
-ReadBuffersRequest::~ReadBuffersRequest() = default;
-ReadBuffersRequest::ReadBuffersRequest(const ReadBuffersRequest&) = default;
-ReadBuffersRequest& ReadBuffersRequest::operator=(const ReadBuffersRequest&) = default;
-ReadBuffersRequest::ReadBuffersRequest(ReadBuffersRequest&&) noexcept = default;
-ReadBuffersRequest& ReadBuffersRequest::operator=(ReadBuffersRequest&&) = default;
-
-bool ReadBuffersRequest::operator==(const ReadBuffersRequest& other) const {
-  return unknown_fields_ == other.unknown_fields_;
-}
-
-bool ReadBuffersRequest::ParseFromArray(const void* raw, size_t size) {
-  unknown_fields_.clear();
-  bool packed_error = false;
-
-  ::protozero::ProtoDecoder dec(raw, size);
-  for (auto field = dec.ReadField(); field.valid(); field = dec.ReadField()) {
-    if (field.id() < _has_field_.size()) {
-      _has_field_.set(field.id());
-    }
-    switch (field.id()) {
-      default:
-        field.SerializeAndAppendTo(&unknown_fields_);
-        break;
-    }
-  }
-  return !packed_error && !dec.bytes_left();
-}
-
-std::string ReadBuffersRequest::SerializeAsString() const {
-  ::protozero::HeapBuffered<::protozero::Message> msg;
-  Serialize(msg.get());
-  return msg.SerializeAsString();
-}
-
-std::vector<uint8_t> ReadBuffersRequest::SerializeAsArray() const {
-  ::protozero::HeapBuffered<::protozero::Message> msg;
-  Serialize(msg.get());
-  return msg.SerializeAsArray();
-}
-
-void ReadBuffersRequest::Serialize(::protozero::Message* msg) const {
-  msg->AppendRawProtoBytes(unknown_fields_.data(), unknown_fields_.size());
-}
-
-
-DisableTracingResponse::DisableTracingResponse() = default;
-DisableTracingResponse::~DisableTracingResponse() = default;
-DisableTracingResponse::DisableTracingResponse(const DisableTracingResponse&) = default;
-DisableTracingResponse& DisableTracingResponse::operator=(const DisableTracingResponse&) = default;
-DisableTracingResponse::DisableTracingResponse(DisableTracingResponse&&) noexcept = default;
-DisableTracingResponse& DisableTracingResponse::operator=(DisableTracingResponse&&) = default;
-
-bool DisableTracingResponse::operator==(const DisableTracingResponse& other) const {
-  return unknown_fields_ == other.unknown_fields_;
-}
-
-bool DisableTracingResponse::ParseFromArray(const void* raw, size_t size) {
-  unknown_fields_.clear();
-  bool packed_error = false;
-
-  ::protozero::ProtoDecoder dec(raw, size);
-  for (auto field = dec.ReadField(); field.valid(); field = dec.ReadField()) {
-    if (field.id() < _has_field_.size()) {
-      _has_field_.set(field.id());
-    }
-    switch (field.id()) {
-      default:
-        field.SerializeAndAppendTo(&unknown_fields_);
-        break;
-    }
-  }
-  return !packed_error && !dec.bytes_left();
-}
-
-std::string DisableTracingResponse::SerializeAsString() const {
-  ::protozero::HeapBuffered<::protozero::Message> msg;
-  Serialize(msg.get());
-  return msg.SerializeAsString();
-}
-
-std::vector<uint8_t> DisableTracingResponse::SerializeAsArray() const {
-  ::protozero::HeapBuffered<::protozero::Message> msg;
-  Serialize(msg.get());
-  return msg.SerializeAsArray();
-}
-
-void DisableTracingResponse::Serialize(::protozero::Message* msg) const {
-  msg->AppendRawProtoBytes(unknown_fields_.data(), unknown_fields_.size());
-}
-
-
-DisableTracingRequest::DisableTracingRequest() = default;
-DisableTracingRequest::~DisableTracingRequest() = default;
-DisableTracingRequest::DisableTracingRequest(const DisableTracingRequest&) = default;
-DisableTracingRequest& DisableTracingRequest::operator=(const DisableTracingRequest&) = default;
-DisableTracingRequest::DisableTracingRequest(DisableTracingRequest&&) noexcept = default;
-DisableTracingRequest& DisableTracingRequest::operator=(DisableTracingRequest&&) = default;
-
-bool DisableTracingRequest::operator==(const DisableTracingRequest& other) const {
-  return unknown_fields_ == other.unknown_fields_;
-}
-
-bool DisableTracingRequest::ParseFromArray(const void* raw, size_t size) {
-  unknown_fields_.clear();
-  bool packed_error = false;
-
-  ::protozero::ProtoDecoder dec(raw, size);
-  for (auto field = dec.ReadField(); field.valid(); field = dec.ReadField()) {
-    if (field.id() < _has_field_.size()) {
-      _has_field_.set(field.id());
-    }
-    switch (field.id()) {
-      default:
-        field.SerializeAndAppendTo(&unknown_fields_);
-        break;
-    }
-  }
-  return !packed_error && !dec.bytes_left();
-}
-
-std::string DisableTracingRequest::SerializeAsString() const {
-  ::protozero::HeapBuffered<::protozero::Message> msg;
-  Serialize(msg.get());
-  return msg.SerializeAsString();
-}
-
-std::vector<uint8_t> DisableTracingRequest::SerializeAsArray() const {
-  ::protozero::HeapBuffered<::protozero::Message> msg;
-  Serialize(msg.get());
-  return msg.SerializeAsArray();
-}
-
-void DisableTracingRequest::Serialize(::protozero::Message* msg) const {
-  msg->AppendRawProtoBytes(unknown_fields_.data(), unknown_fields_.size());
-}
-
-
-ChangeTraceConfigResponse::ChangeTraceConfigResponse() = default;
-ChangeTraceConfigResponse::~ChangeTraceConfigResponse() = default;
-ChangeTraceConfigResponse::ChangeTraceConfigResponse(const ChangeTraceConfigResponse&) = default;
-ChangeTraceConfigResponse& ChangeTraceConfigResponse::operator=(const ChangeTraceConfigResponse&) = default;
-ChangeTraceConfigResponse::ChangeTraceConfigResponse(ChangeTraceConfigResponse&&) noexcept = default;
-ChangeTraceConfigResponse& ChangeTraceConfigResponse::operator=(ChangeTraceConfigResponse&&) = default;
-
-bool ChangeTraceConfigResponse::operator==(const ChangeTraceConfigResponse& other) const {
-  return unknown_fields_ == other.unknown_fields_;
-}
-
-bool ChangeTraceConfigResponse::ParseFromArray(const void* raw, size_t size) {
-  unknown_fields_.clear();
-  bool packed_error = false;
-
-  ::protozero::ProtoDecoder dec(raw, size);
-  for (auto field = dec.ReadField(); field.valid(); field = dec.ReadField()) {
-    if (field.id() < _has_field_.size()) {
-      _has_field_.set(field.id());
-    }
-    switch (field.id()) {
-      default:
-        field.SerializeAndAppendTo(&unknown_fields_);
-        break;
-    }
-  }
-  return !packed_error && !dec.bytes_left();
-}
-
-std::string ChangeTraceConfigResponse::SerializeAsString() const {
-  ::protozero::HeapBuffered<::protozero::Message> msg;
-  Serialize(msg.get());
-  return msg.SerializeAsString();
-}
-
-std::vector<uint8_t> ChangeTraceConfigResponse::SerializeAsArray() const {
-  ::protozero::HeapBuffered<::protozero::Message> msg;
-  Serialize(msg.get());
-  return msg.SerializeAsArray();
-}
-
-void ChangeTraceConfigResponse::Serialize(::protozero::Message* msg) const {
-  msg->AppendRawProtoBytes(unknown_fields_.data(), unknown_fields_.size());
-}
-
-
-ChangeTraceConfigRequest::ChangeTraceConfigRequest() = default;
-ChangeTraceConfigRequest::~ChangeTraceConfigRequest() = default;
-ChangeTraceConfigRequest::ChangeTraceConfigRequest(const ChangeTraceConfigRequest&) = default;
-ChangeTraceConfigRequest& ChangeTraceConfigRequest::operator=(const ChangeTraceConfigRequest&) = default;
-ChangeTraceConfigRequest::ChangeTraceConfigRequest(ChangeTraceConfigRequest&&) noexcept = default;
-ChangeTraceConfigRequest& ChangeTraceConfigRequest::operator=(ChangeTraceConfigRequest&&) = default;
-
-bool ChangeTraceConfigRequest::operator==(const ChangeTraceConfigRequest& other) const {
-  return unknown_fields_ == other.unknown_fields_
-   && trace_config_ == other.trace_config_;
-}
-
-bool ChangeTraceConfigRequest::ParseFromArray(const void* raw, size_t size) {
-  unknown_fields_.clear();
-  bool packed_error = false;
-
-  ::protozero::ProtoDecoder dec(raw, size);
-  for (auto field = dec.ReadField(); field.valid(); field = dec.ReadField()) {
-    if (field.id() < _has_field_.size()) {
-      _has_field_.set(field.id());
-    }
-    switch (field.id()) {
-      case 1 /* trace_config */:
-        (*trace_config_).ParseFromArray(field.data(), field.size());
-        break;
-      default:
-        field.SerializeAndAppendTo(&unknown_fields_);
-        break;
-    }
-  }
-  return !packed_error && !dec.bytes_left();
-}
-
-std::string ChangeTraceConfigRequest::SerializeAsString() const {
-  ::protozero::HeapBuffered<::protozero::Message> msg;
-  Serialize(msg.get());
-  return msg.SerializeAsString();
-}
-
-std::vector<uint8_t> ChangeTraceConfigRequest::SerializeAsArray() const {
-  ::protozero::HeapBuffered<::protozero::Message> msg;
-  Serialize(msg.get());
-  return msg.SerializeAsArray();
-}
-
-void ChangeTraceConfigRequest::Serialize(::protozero::Message* msg) const {
-  // Field 1: trace_config
-  if (_has_field_[1]) {
-    (*trace_config_).Serialize(msg->BeginNestedMessage<::protozero::Message>(1));
-  }
-
-  msg->AppendRawProtoBytes(unknown_fields_.data(), unknown_fields_.size());
-}
-
-
-StartTracingResponse::StartTracingResponse() = default;
-StartTracingResponse::~StartTracingResponse() = default;
-StartTracingResponse::StartTracingResponse(const StartTracingResponse&) = default;
-StartTracingResponse& StartTracingResponse::operator=(const StartTracingResponse&) = default;
-StartTracingResponse::StartTracingResponse(StartTracingResponse&&) noexcept = default;
-StartTracingResponse& StartTracingResponse::operator=(StartTracingResponse&&) = default;
-
-bool StartTracingResponse::operator==(const StartTracingResponse& other) const {
-  return unknown_fields_ == other.unknown_fields_;
-}
-
-bool StartTracingResponse::ParseFromArray(const void* raw, size_t size) {
-  unknown_fields_.clear();
-  bool packed_error = false;
-
-  ::protozero::ProtoDecoder dec(raw, size);
-  for (auto field = dec.ReadField(); field.valid(); field = dec.ReadField()) {
-    if (field.id() < _has_field_.size()) {
-      _has_field_.set(field.id());
-    }
-    switch (field.id()) {
-      default:
-        field.SerializeAndAppendTo(&unknown_fields_);
-        break;
-    }
-  }
-  return !packed_error && !dec.bytes_left();
-}
-
-std::string StartTracingResponse::SerializeAsString() const {
-  ::protozero::HeapBuffered<::protozero::Message> msg;
-  Serialize(msg.get());
-  return msg.SerializeAsString();
-}
-
-std::vector<uint8_t> StartTracingResponse::SerializeAsArray() const {
-  ::protozero::HeapBuffered<::protozero::Message> msg;
-  Serialize(msg.get());
-  return msg.SerializeAsArray();
-}
-
-void StartTracingResponse::Serialize(::protozero::Message* msg) const {
-  msg->AppendRawProtoBytes(unknown_fields_.data(), unknown_fields_.size());
-}
-
-
-StartTracingRequest::StartTracingRequest() = default;
-StartTracingRequest::~StartTracingRequest() = default;
-StartTracingRequest::StartTracingRequest(const StartTracingRequest&) = default;
-StartTracingRequest& StartTracingRequest::operator=(const StartTracingRequest&) = default;
-StartTracingRequest::StartTracingRequest(StartTracingRequest&&) noexcept = default;
-StartTracingRequest& StartTracingRequest::operator=(StartTracingRequest&&) = default;
-
-bool StartTracingRequest::operator==(const StartTracingRequest& other) const {
-  return unknown_fields_ == other.unknown_fields_;
-}
-
-bool StartTracingRequest::ParseFromArray(const void* raw, size_t size) {
-  unknown_fields_.clear();
-  bool packed_error = false;
-
-  ::protozero::ProtoDecoder dec(raw, size);
-  for (auto field = dec.ReadField(); field.valid(); field = dec.ReadField()) {
-    if (field.id() < _has_field_.size()) {
-      _has_field_.set(field.id());
-    }
-    switch (field.id()) {
-      default:
-        field.SerializeAndAppendTo(&unknown_fields_);
-        break;
-    }
-  }
-  return !packed_error && !dec.bytes_left();
-}
-
-std::string StartTracingRequest::SerializeAsString() const {
-  ::protozero::HeapBuffered<::protozero::Message> msg;
-  Serialize(msg.get());
-  return msg.SerializeAsString();
-}
-
-std::vector<uint8_t> StartTracingRequest::SerializeAsArray() const {
-  ::protozero::HeapBuffered<::protozero::Message> msg;
-  Serialize(msg.get());
-  return msg.SerializeAsArray();
-}
-
-void StartTracingRequest::Serialize(::protozero::Message* msg) const {
-  msg->AppendRawProtoBytes(unknown_fields_.data(), unknown_fields_.size());
-}
-
-
-EnableTracingResponse::EnableTracingResponse() = default;
-EnableTracingResponse::~EnableTracingResponse() = default;
-EnableTracingResponse::EnableTracingResponse(const EnableTracingResponse&) = default;
-EnableTracingResponse& EnableTracingResponse::operator=(const EnableTracingResponse&) = default;
-EnableTracingResponse::EnableTracingResponse(EnableTracingResponse&&) noexcept = default;
-EnableTracingResponse& EnableTracingResponse::operator=(EnableTracingResponse&&) = default;
-
-bool EnableTracingResponse::operator==(const EnableTracingResponse& other) const {
-  return unknown_fields_ == other.unknown_fields_
-   && disabled_ == other.disabled_
-   && error_ == other.error_;
-}
-
-bool EnableTracingResponse::ParseFromArray(const void* raw, size_t size) {
-  unknown_fields_.clear();
-  bool packed_error = false;
-
-  ::protozero::ProtoDecoder dec(raw, size);
-  for (auto field = dec.ReadField(); field.valid(); field = dec.ReadField()) {
-    if (field.id() < _has_field_.size()) {
-      _has_field_.set(field.id());
-    }
-    switch (field.id()) {
-      case 1 /* disabled */:
-        field.get(&disabled_);
-        break;
-      case 3 /* error */:
-        field.get(&error_);
-        break;
-      default:
-        field.SerializeAndAppendTo(&unknown_fields_);
-        break;
-    }
-  }
-  return !packed_error && !dec.bytes_left();
-}
-
-std::string EnableTracingResponse::SerializeAsString() const {
-  ::protozero::HeapBuffered<::protozero::Message> msg;
-  Serialize(msg.get());
-  return msg.SerializeAsString();
-}
-
-std::vector<uint8_t> EnableTracingResponse::SerializeAsArray() const {
-  ::protozero::HeapBuffered<::protozero::Message> msg;
-  Serialize(msg.get());
-  return msg.SerializeAsArray();
-}
-
-void EnableTracingResponse::Serialize(::protozero::Message* msg) const {
-  // Field 1: disabled
-  if (_has_field_[1]) {
-    msg->AppendTinyVarInt(1, disabled_);
-  }
-
-  // Field 3: error
-  if (_has_field_[3]) {
-    msg->AppendString(3, error_);
-  }
-
-  msg->AppendRawProtoBytes(unknown_fields_.data(), unknown_fields_.size());
-}
-
-
-EnableTracingRequest::EnableTracingRequest() = default;
-EnableTracingRequest::~EnableTracingRequest() = default;
-EnableTracingRequest::EnableTracingRequest(const EnableTracingRequest&) = default;
-EnableTracingRequest& EnableTracingRequest::operator=(const EnableTracingRequest&) = default;
-EnableTracingRequest::EnableTracingRequest(EnableTracingRequest&&) noexcept = default;
-EnableTracingRequest& EnableTracingRequest::operator=(EnableTracingRequest&&) = default;
-
-bool EnableTracingRequest::operator==(const EnableTracingRequest& other) const {
-  return unknown_fields_ == other.unknown_fields_
-   && trace_config_ == other.trace_config_
-   && attach_notification_only_ == other.attach_notification_only_;
-}
-
-bool EnableTracingRequest::ParseFromArray(const void* raw, size_t size) {
-  unknown_fields_.clear();
-  bool packed_error = false;
-
-  ::protozero::ProtoDecoder dec(raw, size);
-  for (auto field = dec.ReadField(); field.valid(); field = dec.ReadField()) {
-    if (field.id() < _has_field_.size()) {
-      _has_field_.set(field.id());
-    }
-    switch (field.id()) {
-      case 1 /* trace_config */:
-        (*trace_config_).ParseFromArray(field.data(), field.size());
-        break;
-      case 2 /* attach_notification_only */:
-        field.get(&attach_notification_only_);
-        break;
-      default:
-        field.SerializeAndAppendTo(&unknown_fields_);
-        break;
-    }
-  }
-  return !packed_error && !dec.bytes_left();
-}
-
-std::string EnableTracingRequest::SerializeAsString() const {
-  ::protozero::HeapBuffered<::protozero::Message> msg;
-  Serialize(msg.get());
-  return msg.SerializeAsString();
-}
-
-std::vector<uint8_t> EnableTracingRequest::SerializeAsArray() const {
-  ::protozero::HeapBuffered<::protozero::Message> msg;
-  Serialize(msg.get());
-  return msg.SerializeAsArray();
-}
-
-void EnableTracingRequest::Serialize(::protozero::Message* msg) const {
-  // Field 1: trace_config
-  if (_has_field_[1]) {
-    (*trace_config_).Serialize(msg->BeginNestedMessage<::protozero::Message>(1));
-  }
-
-  // Field 2: attach_notification_only
-  if (_has_field_[2]) {
-    msg->AppendTinyVarInt(2, attach_notification_only_);
-  }
-
-  msg->AppendRawProtoBytes(unknown_fields_.data(), unknown_fields_.size());
-}
-
-}  // namespace perfetto
-}  // namespace protos
-}  // namespace gen
-#if defined(__GNUC__) || defined(__clang__)
-#pragma GCC diagnostic pop
-#endif
-// gen_amalgamated begin source: gen/protos/perfetto/ipc/producer_port.gen.cc
-// gen_amalgamated begin header: gen/protos/perfetto/ipc/producer_port.gen.h
-// DO NOT EDIT. Autogenerated by Perfetto cppgen_plugin
-#ifndef PERFETTO_PROTOS_PROTOS_PERFETTO_IPC_PRODUCER_PORT_PROTO_CPP_H_
-#define PERFETTO_PROTOS_PROTOS_PERFETTO_IPC_PRODUCER_PORT_PROTO_CPP_H_
-
-#include <stdint.h>
-#include <bitset>
-#include <vector>
-#include <string>
-#include <type_traits>
-
-// gen_amalgamated expanded: #include "perfetto/protozero/cpp_message_obj.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/copyable_ptr.h"
-// gen_amalgamated expanded: #include "perfetto/base/export.h"
-
-namespace perfetto {
-namespace protos {
-namespace gen {
-class SyncResponse;
-class SyncRequest;
-class GetAsyncCommandResponse;
-class GetAsyncCommandResponse_ClearIncrementalState;
-class GetAsyncCommandResponse_Flush;
-class GetAsyncCommandResponse_StopDataSource;
-class GetAsyncCommandResponse_StartDataSource;
-class DataSourceConfig;
-class TestConfig;
-class TestConfig_DummyFields;
-class InterceptorConfig;
-class ChromeConfig;
-class GetAsyncCommandResponse_SetupDataSource;
-class GetAsyncCommandResponse_SetupTracing;
-class GetAsyncCommandRequest;
-class ActivateTriggersResponse;
-class ActivateTriggersRequest;
-class NotifyDataSourceStoppedResponse;
-class NotifyDataSourceStoppedRequest;
-class NotifyDataSourceStartedResponse;
-class NotifyDataSourceStartedRequest;
-class CommitDataResponse;
-class UnregisterTraceWriterResponse;
-class UnregisterTraceWriterRequest;
-class RegisterTraceWriterResponse;
-class RegisterTraceWriterRequest;
-class UnregisterDataSourceResponse;
-class UnregisterDataSourceRequest;
-class RegisterDataSourceResponse;
-class RegisterDataSourceRequest;
-class DataSourceDescriptor;
-class InitializeConnectionResponse;
-class InitializeConnectionRequest;
-enum DataSourceConfig_SessionInitiator : int;
-enum ChromeConfig_ClientPriority : int;
-enum InitializeConnectionRequest_ProducerSMBScrapingMode : int;
-enum InitializeConnectionRequest_ProducerBuildFlags : int;
-}  // namespace perfetto
-}  // namespace protos
-}  // namespace gen
-
-namespace protozero {
-class Message;
-}  // namespace protozero
-
-namespace perfetto {
-namespace protos {
-namespace gen {
-enum InitializeConnectionRequest_ProducerSMBScrapingMode : int {
-  InitializeConnectionRequest_ProducerSMBScrapingMode_SMB_SCRAPING_UNSPECIFIED = 0,
-  InitializeConnectionRequest_ProducerSMBScrapingMode_SMB_SCRAPING_ENABLED = 1,
-  InitializeConnectionRequest_ProducerSMBScrapingMode_SMB_SCRAPING_DISABLED = 2,
-};
-enum InitializeConnectionRequest_ProducerBuildFlags : int {
-  InitializeConnectionRequest_ProducerBuildFlags_BUILD_FLAGS_UNSPECIFIED = 0,
-  InitializeConnectionRequest_ProducerBuildFlags_BUILD_FLAGS_DCHECKS_ON = 1,
-  InitializeConnectionRequest_ProducerBuildFlags_BUILD_FLAGS_DCHECKS_OFF = 2,
-};
-
-class PERFETTO_EXPORT SyncResponse : public ::protozero::CppMessageObj {
- public:
-  enum FieldNumbers {
-  };
-
-  SyncResponse();
-  ~SyncResponse() override;
-  SyncResponse(SyncResponse&&) noexcept;
-  SyncResponse& operator=(SyncResponse&&);
-  SyncResponse(const SyncResponse&);
-  SyncResponse& operator=(const SyncResponse&);
-  bool operator==(const SyncResponse&) const;
-  bool operator!=(const SyncResponse& other) const { return !(*this == other); }
-
-  bool ParseFromArray(const void*, size_t) override;
-  std::string SerializeAsString() const override;
-  std::vector<uint8_t> SerializeAsArray() const override;
-  void Serialize(::protozero::Message*) const;
-
- private:
-
-  // Allows to preserve unknown protobuf fields for compatibility
-  // with future versions of .proto files.
-  std::string unknown_fields_;
-
-  std::bitset<2> _has_field_{};
-};
-
-
-class PERFETTO_EXPORT SyncRequest : public ::protozero::CppMessageObj {
- public:
-  enum FieldNumbers {
-  };
-
-  SyncRequest();
-  ~SyncRequest() override;
-  SyncRequest(SyncRequest&&) noexcept;
-  SyncRequest& operator=(SyncRequest&&);
-  SyncRequest(const SyncRequest&);
-  SyncRequest& operator=(const SyncRequest&);
-  bool operator==(const SyncRequest&) const;
-  bool operator!=(const SyncRequest& other) const { return !(*this == other); }
-
-  bool ParseFromArray(const void*, size_t) override;
-  std::string SerializeAsString() const override;
-  std::vector<uint8_t> SerializeAsArray() const override;
-  void Serialize(::protozero::Message*) const;
-
- private:
-
-  // Allows to preserve unknown protobuf fields for compatibility
-  // with future versions of .proto files.
-  std::string unknown_fields_;
-
-  std::bitset<2> _has_field_{};
-};
-
-
-class PERFETTO_EXPORT GetAsyncCommandResponse : public ::protozero::CppMessageObj {
- public:
-  using SetupDataSource = GetAsyncCommandResponse_SetupDataSource;
-  using StartDataSource = GetAsyncCommandResponse_StartDataSource;
-  using StopDataSource = GetAsyncCommandResponse_StopDataSource;
-  using SetupTracing = GetAsyncCommandResponse_SetupTracing;
-  using Flush = GetAsyncCommandResponse_Flush;
-  using ClearIncrementalState = GetAsyncCommandResponse_ClearIncrementalState;
-  enum FieldNumbers {
-    kSetupTracingFieldNumber = 3,
-    kSetupDataSourceFieldNumber = 6,
-    kStartDataSourceFieldNumber = 1,
-    kStopDataSourceFieldNumber = 2,
-    kFlushFieldNumber = 5,
-    kClearIncrementalStateFieldNumber = 7,
-  };
-
-  GetAsyncCommandResponse();
-  ~GetAsyncCommandResponse() override;
-  GetAsyncCommandResponse(GetAsyncCommandResponse&&) noexcept;
-  GetAsyncCommandResponse& operator=(GetAsyncCommandResponse&&);
-  GetAsyncCommandResponse(const GetAsyncCommandResponse&);
-  GetAsyncCommandResponse& operator=(const GetAsyncCommandResponse&);
-  bool operator==(const GetAsyncCommandResponse&) const;
-  bool operator!=(const GetAsyncCommandResponse& other) const { return !(*this == other); }
-
-  bool ParseFromArray(const void*, size_t) override;
-  std::string SerializeAsString() const override;
-  std::vector<uint8_t> SerializeAsArray() const override;
-  void Serialize(::protozero::Message*) const;
-
-  bool has_setup_tracing() const { return _has_field_[3]; }
-  const GetAsyncCommandResponse_SetupTracing& setup_tracing() const { return *setup_tracing_; }
-  GetAsyncCommandResponse_SetupTracing* mutable_setup_tracing() { _has_field_.set(3); return setup_tracing_.get(); }
-
-  bool has_setup_data_source() const { return _has_field_[6]; }
-  const GetAsyncCommandResponse_SetupDataSource& setup_data_source() const { return *setup_data_source_; }
-  GetAsyncCommandResponse_SetupDataSource* mutable_setup_data_source() { _has_field_.set(6); return setup_data_source_.get(); }
-
-  bool has_start_data_source() const { return _has_field_[1]; }
-  const GetAsyncCommandResponse_StartDataSource& start_data_source() const { return *start_data_source_; }
-  GetAsyncCommandResponse_StartDataSource* mutable_start_data_source() { _has_field_.set(1); return start_data_source_.get(); }
-
-  bool has_stop_data_source() const { return _has_field_[2]; }
-  const GetAsyncCommandResponse_StopDataSource& stop_data_source() const { return *stop_data_source_; }
-  GetAsyncCommandResponse_StopDataSource* mutable_stop_data_source() { _has_field_.set(2); return stop_data_source_.get(); }
-
-  bool has_flush() const { return _has_field_[5]; }
-  const GetAsyncCommandResponse_Flush& flush() const { return *flush_; }
-  GetAsyncCommandResponse_Flush* mutable_flush() { _has_field_.set(5); return flush_.get(); }
-
-  bool has_clear_incremental_state() const { return _has_field_[7]; }
-  const GetAsyncCommandResponse_ClearIncrementalState& clear_incremental_state() const { return *clear_incremental_state_; }
-  GetAsyncCommandResponse_ClearIncrementalState* mutable_clear_incremental_state() { _has_field_.set(7); return clear_incremental_state_.get(); }
-
- private:
-  ::protozero::CopyablePtr<GetAsyncCommandResponse_SetupTracing> setup_tracing_;
-  ::protozero::CopyablePtr<GetAsyncCommandResponse_SetupDataSource> setup_data_source_;
-  ::protozero::CopyablePtr<GetAsyncCommandResponse_StartDataSource> start_data_source_;
-  ::protozero::CopyablePtr<GetAsyncCommandResponse_StopDataSource> stop_data_source_;
-  ::protozero::CopyablePtr<GetAsyncCommandResponse_Flush> flush_;
-  ::protozero::CopyablePtr<GetAsyncCommandResponse_ClearIncrementalState> clear_incremental_state_;
-
-  // Allows to preserve unknown protobuf fields for compatibility
-  // with future versions of .proto files.
-  std::string unknown_fields_;
-
-  std::bitset<8> _has_field_{};
-};
-
-
-class PERFETTO_EXPORT GetAsyncCommandResponse_ClearIncrementalState : public ::protozero::CppMessageObj {
- public:
-  enum FieldNumbers {
-    kDataSourceIdsFieldNumber = 1,
-  };
-
-  GetAsyncCommandResponse_ClearIncrementalState();
-  ~GetAsyncCommandResponse_ClearIncrementalState() override;
-  GetAsyncCommandResponse_ClearIncrementalState(GetAsyncCommandResponse_ClearIncrementalState&&) noexcept;
-  GetAsyncCommandResponse_ClearIncrementalState& operator=(GetAsyncCommandResponse_ClearIncrementalState&&);
-  GetAsyncCommandResponse_ClearIncrementalState(const GetAsyncCommandResponse_ClearIncrementalState&);
-  GetAsyncCommandResponse_ClearIncrementalState& operator=(const GetAsyncCommandResponse_ClearIncrementalState&);
-  bool operator==(const GetAsyncCommandResponse_ClearIncrementalState&) const;
-  bool operator!=(const GetAsyncCommandResponse_ClearIncrementalState& other) const { return !(*this == other); }
-
-  bool ParseFromArray(const void*, size_t) override;
-  std::string SerializeAsString() const override;
-  std::vector<uint8_t> SerializeAsArray() const override;
-  void Serialize(::protozero::Message*) const;
-
-  const std::vector<uint64_t>& data_source_ids() const { return data_source_ids_; }
-  std::vector<uint64_t>* mutable_data_source_ids() { return &data_source_ids_; }
-  int data_source_ids_size() const { return static_cast<int>(data_source_ids_.size()); }
-  void clear_data_source_ids() { data_source_ids_.clear(); }
-  void add_data_source_ids(uint64_t value) { data_source_ids_.emplace_back(value); }
-  uint64_t* add_data_source_ids() { data_source_ids_.emplace_back(); return &data_source_ids_.back(); }
-
- private:
-  std::vector<uint64_t> data_source_ids_;
-
-  // Allows to preserve unknown protobuf fields for compatibility
-  // with future versions of .proto files.
-  std::string unknown_fields_;
-
-  std::bitset<2> _has_field_{};
-};
-
-
-class PERFETTO_EXPORT GetAsyncCommandResponse_Flush : public ::protozero::CppMessageObj {
- public:
-  enum FieldNumbers {
-    kDataSourceIdsFieldNumber = 1,
-    kRequestIdFieldNumber = 2,
-  };
-
-  GetAsyncCommandResponse_Flush();
-  ~GetAsyncCommandResponse_Flush() override;
-  GetAsyncCommandResponse_Flush(GetAsyncCommandResponse_Flush&&) noexcept;
-  GetAsyncCommandResponse_Flush& operator=(GetAsyncCommandResponse_Flush&&);
-  GetAsyncCommandResponse_Flush(const GetAsyncCommandResponse_Flush&);
-  GetAsyncCommandResponse_Flush& operator=(const GetAsyncCommandResponse_Flush&);
-  bool operator==(const GetAsyncCommandResponse_Flush&) const;
-  bool operator!=(const GetAsyncCommandResponse_Flush& other) const { return !(*this == other); }
-
-  bool ParseFromArray(const void*, size_t) override;
-  std::string SerializeAsString() const override;
-  std::vector<uint8_t> SerializeAsArray() const override;
-  void Serialize(::protozero::Message*) const;
-
-  const std::vector<uint64_t>& data_source_ids() const { return data_source_ids_; }
-  std::vector<uint64_t>* mutable_data_source_ids() { return &data_source_ids_; }
-  int data_source_ids_size() const { return static_cast<int>(data_source_ids_.size()); }
-  void clear_data_source_ids() { data_source_ids_.clear(); }
-  void add_data_source_ids(uint64_t value) { data_source_ids_.emplace_back(value); }
-  uint64_t* add_data_source_ids() { data_source_ids_.emplace_back(); return &data_source_ids_.back(); }
-
-  bool has_request_id() const { return _has_field_[2]; }
-  uint64_t request_id() const { return request_id_; }
-  void set_request_id(uint64_t value) { request_id_ = value; _has_field_.set(2); }
-
- private:
-  std::vector<uint64_t> data_source_ids_;
-  uint64_t request_id_{};
-
-  // Allows to preserve unknown protobuf fields for compatibility
-  // with future versions of .proto files.
-  std::string unknown_fields_;
-
-  std::bitset<3> _has_field_{};
-};
-
-
-class PERFETTO_EXPORT GetAsyncCommandResponse_StopDataSource : public ::protozero::CppMessageObj {
- public:
-  enum FieldNumbers {
-    kInstanceIdFieldNumber = 1,
-  };
-
-  GetAsyncCommandResponse_StopDataSource();
-  ~GetAsyncCommandResponse_StopDataSource() override;
-  GetAsyncCommandResponse_StopDataSource(GetAsyncCommandResponse_StopDataSource&&) noexcept;
-  GetAsyncCommandResponse_StopDataSource& operator=(GetAsyncCommandResponse_StopDataSource&&);
-  GetAsyncCommandResponse_StopDataSource(const GetAsyncCommandResponse_StopDataSource&);
-  GetAsyncCommandResponse_StopDataSource& operator=(const GetAsyncCommandResponse_StopDataSource&);
-  bool operator==(const GetAsyncCommandResponse_StopDataSource&) const;
-  bool operator!=(const GetAsyncCommandResponse_StopDataSource& other) const { return !(*this == other); }
-
-  bool ParseFromArray(const void*, size_t) override;
-  std::string SerializeAsString() const override;
-  std::vector<uint8_t> SerializeAsArray() const override;
-  void Serialize(::protozero::Message*) const;
-
-  bool has_instance_id() const { return _has_field_[1]; }
-  uint64_t instance_id() const { return instance_id_; }
-  void set_instance_id(uint64_t value) { instance_id_ = value; _has_field_.set(1); }
-
- private:
-  uint64_t instance_id_{};
-
-  // Allows to preserve unknown protobuf fields for compatibility
-  // with future versions of .proto files.
-  std::string unknown_fields_;
-
-  std::bitset<2> _has_field_{};
-};
-
-
-class PERFETTO_EXPORT GetAsyncCommandResponse_StartDataSource : public ::protozero::CppMessageObj {
- public:
-  enum FieldNumbers {
-    kNewInstanceIdFieldNumber = 1,
-    kConfigFieldNumber = 2,
-  };
-
-  GetAsyncCommandResponse_StartDataSource();
-  ~GetAsyncCommandResponse_StartDataSource() override;
-  GetAsyncCommandResponse_StartDataSource(GetAsyncCommandResponse_StartDataSource&&) noexcept;
-  GetAsyncCommandResponse_StartDataSource& operator=(GetAsyncCommandResponse_StartDataSource&&);
-  GetAsyncCommandResponse_StartDataSource(const GetAsyncCommandResponse_StartDataSource&);
-  GetAsyncCommandResponse_StartDataSource& operator=(const GetAsyncCommandResponse_StartDataSource&);
-  bool operator==(const GetAsyncCommandResponse_StartDataSource&) const;
-  bool operator!=(const GetAsyncCommandResponse_StartDataSource& other) const { return !(*this == other); }
-
-  bool ParseFromArray(const void*, size_t) override;
-  std::string SerializeAsString() const override;
-  std::vector<uint8_t> SerializeAsArray() const override;
-  void Serialize(::protozero::Message*) const;
-
-  bool has_new_instance_id() const { return _has_field_[1]; }
-  uint64_t new_instance_id() const { return new_instance_id_; }
-  void set_new_instance_id(uint64_t value) { new_instance_id_ = value; _has_field_.set(1); }
-
-  bool has_config() const { return _has_field_[2]; }
-  const DataSourceConfig& config() const { return *config_; }
-  DataSourceConfig* mutable_config() { _has_field_.set(2); return config_.get(); }
-
- private:
-  uint64_t new_instance_id_{};
-  ::protozero::CopyablePtr<DataSourceConfig> config_;
-
-  // Allows to preserve unknown protobuf fields for compatibility
-  // with future versions of .proto files.
-  std::string unknown_fields_;
-
-  std::bitset<3> _has_field_{};
-};
-
-
-class PERFETTO_EXPORT GetAsyncCommandResponse_SetupDataSource : public ::protozero::CppMessageObj {
- public:
-  enum FieldNumbers {
-    kNewInstanceIdFieldNumber = 1,
-    kConfigFieldNumber = 2,
-  };
-
-  GetAsyncCommandResponse_SetupDataSource();
-  ~GetAsyncCommandResponse_SetupDataSource() override;
-  GetAsyncCommandResponse_SetupDataSource(GetAsyncCommandResponse_SetupDataSource&&) noexcept;
-  GetAsyncCommandResponse_SetupDataSource& operator=(GetAsyncCommandResponse_SetupDataSource&&);
-  GetAsyncCommandResponse_SetupDataSource(const GetAsyncCommandResponse_SetupDataSource&);
-  GetAsyncCommandResponse_SetupDataSource& operator=(const GetAsyncCommandResponse_SetupDataSource&);
-  bool operator==(const GetAsyncCommandResponse_SetupDataSource&) const;
-  bool operator!=(const GetAsyncCommandResponse_SetupDataSource& other) const { return !(*this == other); }
-
-  bool ParseFromArray(const void*, size_t) override;
-  std::string SerializeAsString() const override;
-  std::vector<uint8_t> SerializeAsArray() const override;
-  void Serialize(::protozero::Message*) const;
-
-  bool has_new_instance_id() const { return _has_field_[1]; }
-  uint64_t new_instance_id() const { return new_instance_id_; }
-  void set_new_instance_id(uint64_t value) { new_instance_id_ = value; _has_field_.set(1); }
-
-  bool has_config() const { return _has_field_[2]; }
-  const DataSourceConfig& config() const { return *config_; }
-  DataSourceConfig* mutable_config() { _has_field_.set(2); return config_.get(); }
-
- private:
-  uint64_t new_instance_id_{};
-  ::protozero::CopyablePtr<DataSourceConfig> config_;
-
-  // Allows to preserve unknown protobuf fields for compatibility
-  // with future versions of .proto files.
-  std::string unknown_fields_;
-
-  std::bitset<3> _has_field_{};
-};
-
-
-class PERFETTO_EXPORT GetAsyncCommandResponse_SetupTracing : public ::protozero::CppMessageObj {
- public:
-  enum FieldNumbers {
-    kSharedBufferPageSizeKbFieldNumber = 1,
-  };
-
-  GetAsyncCommandResponse_SetupTracing();
-  ~GetAsyncCommandResponse_SetupTracing() override;
-  GetAsyncCommandResponse_SetupTracing(GetAsyncCommandResponse_SetupTracing&&) noexcept;
-  GetAsyncCommandResponse_SetupTracing& operator=(GetAsyncCommandResponse_SetupTracing&&);
-  GetAsyncCommandResponse_SetupTracing(const GetAsyncCommandResponse_SetupTracing&);
-  GetAsyncCommandResponse_SetupTracing& operator=(const GetAsyncCommandResponse_SetupTracing&);
-  bool operator==(const GetAsyncCommandResponse_SetupTracing&) const;
-  bool operator!=(const GetAsyncCommandResponse_SetupTracing& other) const { return !(*this == other); }
-
-  bool ParseFromArray(const void*, size_t) override;
-  std::string SerializeAsString() const override;
-  std::vector<uint8_t> SerializeAsArray() const override;
-  void Serialize(::protozero::Message*) const;
-
-  bool has_shared_buffer_page_size_kb() const { return _has_field_[1]; }
-  uint32_t shared_buffer_page_size_kb() const { return shared_buffer_page_size_kb_; }
-  void set_shared_buffer_page_size_kb(uint32_t value) { shared_buffer_page_size_kb_ = value; _has_field_.set(1); }
-
- private:
-  uint32_t shared_buffer_page_size_kb_{};
-
-  // Allows to preserve unknown protobuf fields for compatibility
-  // with future versions of .proto files.
-  std::string unknown_fields_;
-
-  std::bitset<2> _has_field_{};
-};
-
-
-class PERFETTO_EXPORT GetAsyncCommandRequest : public ::protozero::CppMessageObj {
- public:
-  enum FieldNumbers {
-  };
-
-  GetAsyncCommandRequest();
-  ~GetAsyncCommandRequest() override;
-  GetAsyncCommandRequest(GetAsyncCommandRequest&&) noexcept;
-  GetAsyncCommandRequest& operator=(GetAsyncCommandRequest&&);
-  GetAsyncCommandRequest(const GetAsyncCommandRequest&);
-  GetAsyncCommandRequest& operator=(const GetAsyncCommandRequest&);
-  bool operator==(const GetAsyncCommandRequest&) const;
-  bool operator!=(const GetAsyncCommandRequest& other) const { return !(*this == other); }
-
-  bool ParseFromArray(const void*, size_t) override;
-  std::string SerializeAsString() const override;
-  std::vector<uint8_t> SerializeAsArray() const override;
-  void Serialize(::protozero::Message*) const;
-
- private:
-
-  // Allows to preserve unknown protobuf fields for compatibility
-  // with future versions of .proto files.
-  std::string unknown_fields_;
-
-  std::bitset<2> _has_field_{};
-};
-
-
-class PERFETTO_EXPORT ActivateTriggersResponse : public ::protozero::CppMessageObj {
- public:
-  enum FieldNumbers {
-  };
-
-  ActivateTriggersResponse();
-  ~ActivateTriggersResponse() override;
-  ActivateTriggersResponse(ActivateTriggersResponse&&) noexcept;
-  ActivateTriggersResponse& operator=(ActivateTriggersResponse&&);
-  ActivateTriggersResponse(const ActivateTriggersResponse&);
-  ActivateTriggersResponse& operator=(const ActivateTriggersResponse&);
-  bool operator==(const ActivateTriggersResponse&) const;
-  bool operator!=(const ActivateTriggersResponse& other) const { return !(*this == other); }
-
-  bool ParseFromArray(const void*, size_t) override;
-  std::string SerializeAsString() const override;
-  std::vector<uint8_t> SerializeAsArray() const override;
-  void Serialize(::protozero::Message*) const;
-
- private:
-
-  // Allows to preserve unknown protobuf fields for compatibility
-  // with future versions of .proto files.
-  std::string unknown_fields_;
-
-  std::bitset<2> _has_field_{};
-};
-
-
-class PERFETTO_EXPORT ActivateTriggersRequest : public ::protozero::CppMessageObj {
- public:
-  enum FieldNumbers {
-    kTriggerNamesFieldNumber = 1,
-  };
-
-  ActivateTriggersRequest();
-  ~ActivateTriggersRequest() override;
-  ActivateTriggersRequest(ActivateTriggersRequest&&) noexcept;
-  ActivateTriggersRequest& operator=(ActivateTriggersRequest&&);
-  ActivateTriggersRequest(const ActivateTriggersRequest&);
-  ActivateTriggersRequest& operator=(const ActivateTriggersRequest&);
-  bool operator==(const ActivateTriggersRequest&) const;
-  bool operator!=(const ActivateTriggersRequest& other) const { return !(*this == other); }
-
-  bool ParseFromArray(const void*, size_t) override;
-  std::string SerializeAsString() const override;
-  std::vector<uint8_t> SerializeAsArray() const override;
-  void Serialize(::protozero::Message*) const;
-
-  const std::vector<std::string>& trigger_names() const { return trigger_names_; }
-  std::vector<std::string>* mutable_trigger_names() { return &trigger_names_; }
-  int trigger_names_size() const { return static_cast<int>(trigger_names_.size()); }
-  void clear_trigger_names() { trigger_names_.clear(); }
-  void add_trigger_names(std::string value) { trigger_names_.emplace_back(value); }
-  std::string* add_trigger_names() { trigger_names_.emplace_back(); return &trigger_names_.back(); }
-
- private:
-  std::vector<std::string> trigger_names_;
-
-  // Allows to preserve unknown protobuf fields for compatibility
-  // with future versions of .proto files.
-  std::string unknown_fields_;
-
-  std::bitset<2> _has_field_{};
-};
-
-
-class PERFETTO_EXPORT NotifyDataSourceStoppedResponse : public ::protozero::CppMessageObj {
- public:
-  enum FieldNumbers {
-  };
-
-  NotifyDataSourceStoppedResponse();
-  ~NotifyDataSourceStoppedResponse() override;
-  NotifyDataSourceStoppedResponse(NotifyDataSourceStoppedResponse&&) noexcept;
-  NotifyDataSourceStoppedResponse& operator=(NotifyDataSourceStoppedResponse&&);
-  NotifyDataSourceStoppedResponse(const NotifyDataSourceStoppedResponse&);
-  NotifyDataSourceStoppedResponse& operator=(const NotifyDataSourceStoppedResponse&);
-  bool operator==(const NotifyDataSourceStoppedResponse&) const;
-  bool operator!=(const NotifyDataSourceStoppedResponse& other) const { return !(*this == other); }
-
-  bool ParseFromArray(const void*, size_t) override;
-  std::string SerializeAsString() const override;
-  std::vector<uint8_t> SerializeAsArray() const override;
-  void Serialize(::protozero::Message*) const;
-
- private:
-
-  // Allows to preserve unknown protobuf fields for compatibility
-  // with future versions of .proto files.
-  std::string unknown_fields_;
-
-  std::bitset<2> _has_field_{};
-};
-
-
-class PERFETTO_EXPORT NotifyDataSourceStoppedRequest : public ::protozero::CppMessageObj {
- public:
-  enum FieldNumbers {
-    kDataSourceIdFieldNumber = 1,
-  };
-
-  NotifyDataSourceStoppedRequest();
-  ~NotifyDataSourceStoppedRequest() override;
-  NotifyDataSourceStoppedRequest(NotifyDataSourceStoppedRequest&&) noexcept;
-  NotifyDataSourceStoppedRequest& operator=(NotifyDataSourceStoppedRequest&&);
-  NotifyDataSourceStoppedRequest(const NotifyDataSourceStoppedRequest&);
-  NotifyDataSourceStoppedRequest& operator=(const NotifyDataSourceStoppedRequest&);
-  bool operator==(const NotifyDataSourceStoppedRequest&) const;
-  bool operator!=(const NotifyDataSourceStoppedRequest& other) const { return !(*this == other); }
-
-  bool ParseFromArray(const void*, size_t) override;
-  std::string SerializeAsString() const override;
-  std::vector<uint8_t> SerializeAsArray() const override;
-  void Serialize(::protozero::Message*) const;
-
-  bool has_data_source_id() const { return _has_field_[1]; }
-  uint64_t data_source_id() const { return data_source_id_; }
-  void set_data_source_id(uint64_t value) { data_source_id_ = value; _has_field_.set(1); }
-
- private:
-  uint64_t data_source_id_{};
-
-  // Allows to preserve unknown protobuf fields for compatibility
-  // with future versions of .proto files.
-  std::string unknown_fields_;
-
-  std::bitset<2> _has_field_{};
-};
-
-
-class PERFETTO_EXPORT NotifyDataSourceStartedResponse : public ::protozero::CppMessageObj {
- public:
-  enum FieldNumbers {
-  };
-
-  NotifyDataSourceStartedResponse();
-  ~NotifyDataSourceStartedResponse() override;
-  NotifyDataSourceStartedResponse(NotifyDataSourceStartedResponse&&) noexcept;
-  NotifyDataSourceStartedResponse& operator=(NotifyDataSourceStartedResponse&&);
-  NotifyDataSourceStartedResponse(const NotifyDataSourceStartedResponse&);
-  NotifyDataSourceStartedResponse& operator=(const NotifyDataSourceStartedResponse&);
-  bool operator==(const NotifyDataSourceStartedResponse&) const;
-  bool operator!=(const NotifyDataSourceStartedResponse& other) const { return !(*this == other); }
-
-  bool ParseFromArray(const void*, size_t) override;
-  std::string SerializeAsString() const override;
-  std::vector<uint8_t> SerializeAsArray() const override;
-  void Serialize(::protozero::Message*) const;
-
- private:
-
-  // Allows to preserve unknown protobuf fields for compatibility
-  // with future versions of .proto files.
-  std::string unknown_fields_;
-
-  std::bitset<2> _has_field_{};
-};
-
-
-class PERFETTO_EXPORT NotifyDataSourceStartedRequest : public ::protozero::CppMessageObj {
- public:
-  enum FieldNumbers {
-    kDataSourceIdFieldNumber = 1,
-  };
-
-  NotifyDataSourceStartedRequest();
-  ~NotifyDataSourceStartedRequest() override;
-  NotifyDataSourceStartedRequest(NotifyDataSourceStartedRequest&&) noexcept;
-  NotifyDataSourceStartedRequest& operator=(NotifyDataSourceStartedRequest&&);
-  NotifyDataSourceStartedRequest(const NotifyDataSourceStartedRequest&);
-  NotifyDataSourceStartedRequest& operator=(const NotifyDataSourceStartedRequest&);
-  bool operator==(const NotifyDataSourceStartedRequest&) const;
-  bool operator!=(const NotifyDataSourceStartedRequest& other) const { return !(*this == other); }
-
-  bool ParseFromArray(const void*, size_t) override;
-  std::string SerializeAsString() const override;
-  std::vector<uint8_t> SerializeAsArray() const override;
-  void Serialize(::protozero::Message*) const;
-
-  bool has_data_source_id() const { return _has_field_[1]; }
-  uint64_t data_source_id() const { return data_source_id_; }
-  void set_data_source_id(uint64_t value) { data_source_id_ = value; _has_field_.set(1); }
-
- private:
-  uint64_t data_source_id_{};
-
-  // Allows to preserve unknown protobuf fields for compatibility
-  // with future versions of .proto files.
-  std::string unknown_fields_;
-
-  std::bitset<2> _has_field_{};
-};
-
-
-class PERFETTO_EXPORT CommitDataResponse : public ::protozero::CppMessageObj {
- public:
-  enum FieldNumbers {
-  };
-
-  CommitDataResponse();
-  ~CommitDataResponse() override;
-  CommitDataResponse(CommitDataResponse&&) noexcept;
-  CommitDataResponse& operator=(CommitDataResponse&&);
-  CommitDataResponse(const CommitDataResponse&);
-  CommitDataResponse& operator=(const CommitDataResponse&);
-  bool operator==(const CommitDataResponse&) const;
-  bool operator!=(const CommitDataResponse& other) const { return !(*this == other); }
-
-  bool ParseFromArray(const void*, size_t) override;
-  std::string SerializeAsString() const override;
-  std::vector<uint8_t> SerializeAsArray() const override;
-  void Serialize(::protozero::Message*) const;
-
- private:
-
-  // Allows to preserve unknown protobuf fields for compatibility
-  // with future versions of .proto files.
-  std::string unknown_fields_;
-
-  std::bitset<2> _has_field_{};
-};
-
-
-class PERFETTO_EXPORT UnregisterTraceWriterResponse : public ::protozero::CppMessageObj {
- public:
-  enum FieldNumbers {
-  };
-
-  UnregisterTraceWriterResponse();
-  ~UnregisterTraceWriterResponse() override;
-  UnregisterTraceWriterResponse(UnregisterTraceWriterResponse&&) noexcept;
-  UnregisterTraceWriterResponse& operator=(UnregisterTraceWriterResponse&&);
-  UnregisterTraceWriterResponse(const UnregisterTraceWriterResponse&);
-  UnregisterTraceWriterResponse& operator=(const UnregisterTraceWriterResponse&);
-  bool operator==(const UnregisterTraceWriterResponse&) const;
-  bool operator!=(const UnregisterTraceWriterResponse& other) const { return !(*this == other); }
-
-  bool ParseFromArray(const void*, size_t) override;
-  std::string SerializeAsString() const override;
-  std::vector<uint8_t> SerializeAsArray() const override;
-  void Serialize(::protozero::Message*) const;
-
- private:
-
-  // Allows to preserve unknown protobuf fields for compatibility
-  // with future versions of .proto files.
-  std::string unknown_fields_;
-
-  std::bitset<2> _has_field_{};
-};
-
-
-class PERFETTO_EXPORT UnregisterTraceWriterRequest : public ::protozero::CppMessageObj {
- public:
-  enum FieldNumbers {
-    kTraceWriterIdFieldNumber = 1,
-  };
-
-  UnregisterTraceWriterRequest();
-  ~UnregisterTraceWriterRequest() override;
-  UnregisterTraceWriterRequest(UnregisterTraceWriterRequest&&) noexcept;
-  UnregisterTraceWriterRequest& operator=(UnregisterTraceWriterRequest&&);
-  UnregisterTraceWriterRequest(const UnregisterTraceWriterRequest&);
-  UnregisterTraceWriterRequest& operator=(const UnregisterTraceWriterRequest&);
-  bool operator==(const UnregisterTraceWriterRequest&) const;
-  bool operator!=(const UnregisterTraceWriterRequest& other) const { return !(*this == other); }
-
-  bool ParseFromArray(const void*, size_t) override;
-  std::string SerializeAsString() const override;
-  std::vector<uint8_t> SerializeAsArray() const override;
-  void Serialize(::protozero::Message*) const;
-
-  bool has_trace_writer_id() const { return _has_field_[1]; }
-  uint32_t trace_writer_id() const { return trace_writer_id_; }
-  void set_trace_writer_id(uint32_t value) { trace_writer_id_ = value; _has_field_.set(1); }
-
- private:
-  uint32_t trace_writer_id_{};
-
-  // Allows to preserve unknown protobuf fields for compatibility
-  // with future versions of .proto files.
-  std::string unknown_fields_;
-
-  std::bitset<2> _has_field_{};
-};
-
-
-class PERFETTO_EXPORT RegisterTraceWriterResponse : public ::protozero::CppMessageObj {
- public:
-  enum FieldNumbers {
-  };
-
-  RegisterTraceWriterResponse();
-  ~RegisterTraceWriterResponse() override;
-  RegisterTraceWriterResponse(RegisterTraceWriterResponse&&) noexcept;
-  RegisterTraceWriterResponse& operator=(RegisterTraceWriterResponse&&);
-  RegisterTraceWriterResponse(const RegisterTraceWriterResponse&);
-  RegisterTraceWriterResponse& operator=(const RegisterTraceWriterResponse&);
-  bool operator==(const RegisterTraceWriterResponse&) const;
-  bool operator!=(const RegisterTraceWriterResponse& other) const { return !(*this == other); }
-
-  bool ParseFromArray(const void*, size_t) override;
-  std::string SerializeAsString() const override;
-  std::vector<uint8_t> SerializeAsArray() const override;
-  void Serialize(::protozero::Message*) const;
-
- private:
-
-  // Allows to preserve unknown protobuf fields for compatibility
-  // with future versions of .proto files.
-  std::string unknown_fields_;
-
-  std::bitset<2> _has_field_{};
-};
-
-
-class PERFETTO_EXPORT RegisterTraceWriterRequest : public ::protozero::CppMessageObj {
- public:
-  enum FieldNumbers {
-    kTraceWriterIdFieldNumber = 1,
-    kTargetBufferFieldNumber = 2,
-  };
-
-  RegisterTraceWriterRequest();
-  ~RegisterTraceWriterRequest() override;
-  RegisterTraceWriterRequest(RegisterTraceWriterRequest&&) noexcept;
-  RegisterTraceWriterRequest& operator=(RegisterTraceWriterRequest&&);
-  RegisterTraceWriterRequest(const RegisterTraceWriterRequest&);
-  RegisterTraceWriterRequest& operator=(const RegisterTraceWriterRequest&);
-  bool operator==(const RegisterTraceWriterRequest&) const;
-  bool operator!=(const RegisterTraceWriterRequest& other) const { return !(*this == other); }
-
-  bool ParseFromArray(const void*, size_t) override;
-  std::string SerializeAsString() const override;
-  std::vector<uint8_t> SerializeAsArray() const override;
-  void Serialize(::protozero::Message*) const;
-
-  bool has_trace_writer_id() const { return _has_field_[1]; }
-  uint32_t trace_writer_id() const { return trace_writer_id_; }
-  void set_trace_writer_id(uint32_t value) { trace_writer_id_ = value; _has_field_.set(1); }
-
-  bool has_target_buffer() const { return _has_field_[2]; }
-  uint32_t target_buffer() const { return target_buffer_; }
-  void set_target_buffer(uint32_t value) { target_buffer_ = value; _has_field_.set(2); }
-
- private:
-  uint32_t trace_writer_id_{};
-  uint32_t target_buffer_{};
-
-  // Allows to preserve unknown protobuf fields for compatibility
-  // with future versions of .proto files.
-  std::string unknown_fields_;
-
-  std::bitset<3> _has_field_{};
-};
-
-
-class PERFETTO_EXPORT UnregisterDataSourceResponse : public ::protozero::CppMessageObj {
- public:
-  enum FieldNumbers {
-  };
-
-  UnregisterDataSourceResponse();
-  ~UnregisterDataSourceResponse() override;
-  UnregisterDataSourceResponse(UnregisterDataSourceResponse&&) noexcept;
-  UnregisterDataSourceResponse& operator=(UnregisterDataSourceResponse&&);
-  UnregisterDataSourceResponse(const UnregisterDataSourceResponse&);
-  UnregisterDataSourceResponse& operator=(const UnregisterDataSourceResponse&);
-  bool operator==(const UnregisterDataSourceResponse&) const;
-  bool operator!=(const UnregisterDataSourceResponse& other) const { return !(*this == other); }
-
-  bool ParseFromArray(const void*, size_t) override;
-  std::string SerializeAsString() const override;
-  std::vector<uint8_t> SerializeAsArray() const override;
-  void Serialize(::protozero::Message*) const;
-
- private:
-
-  // Allows to preserve unknown protobuf fields for compatibility
-  // with future versions of .proto files.
-  std::string unknown_fields_;
-
-  std::bitset<2> _has_field_{};
-};
-
-
-class PERFETTO_EXPORT UnregisterDataSourceRequest : public ::protozero::CppMessageObj {
- public:
-  enum FieldNumbers {
-    kDataSourceNameFieldNumber = 1,
-  };
-
-  UnregisterDataSourceRequest();
-  ~UnregisterDataSourceRequest() override;
-  UnregisterDataSourceRequest(UnregisterDataSourceRequest&&) noexcept;
-  UnregisterDataSourceRequest& operator=(UnregisterDataSourceRequest&&);
-  UnregisterDataSourceRequest(const UnregisterDataSourceRequest&);
-  UnregisterDataSourceRequest& operator=(const UnregisterDataSourceRequest&);
-  bool operator==(const UnregisterDataSourceRequest&) const;
-  bool operator!=(const UnregisterDataSourceRequest& other) const { return !(*this == other); }
-
-  bool ParseFromArray(const void*, size_t) override;
-  std::string SerializeAsString() const override;
-  std::vector<uint8_t> SerializeAsArray() const override;
-  void Serialize(::protozero::Message*) const;
-
-  bool has_data_source_name() const { return _has_field_[1]; }
-  const std::string& data_source_name() const { return data_source_name_; }
-  void set_data_source_name(const std::string& value) { data_source_name_ = value; _has_field_.set(1); }
-
- private:
-  std::string data_source_name_{};
-
-  // Allows to preserve unknown protobuf fields for compatibility
-  // with future versions of .proto files.
-  std::string unknown_fields_;
-
-  std::bitset<2> _has_field_{};
-};
-
-
-class PERFETTO_EXPORT RegisterDataSourceResponse : public ::protozero::CppMessageObj {
- public:
-  enum FieldNumbers {
-    kErrorFieldNumber = 1,
-  };
-
-  RegisterDataSourceResponse();
-  ~RegisterDataSourceResponse() override;
-  RegisterDataSourceResponse(RegisterDataSourceResponse&&) noexcept;
-  RegisterDataSourceResponse& operator=(RegisterDataSourceResponse&&);
-  RegisterDataSourceResponse(const RegisterDataSourceResponse&);
-  RegisterDataSourceResponse& operator=(const RegisterDataSourceResponse&);
-  bool operator==(const RegisterDataSourceResponse&) const;
-  bool operator!=(const RegisterDataSourceResponse& other) const { return !(*this == other); }
-
-  bool ParseFromArray(const void*, size_t) override;
-  std::string SerializeAsString() const override;
-  std::vector<uint8_t> SerializeAsArray() const override;
-  void Serialize(::protozero::Message*) const;
-
-  bool has_error() const { return _has_field_[1]; }
-  const std::string& error() const { return error_; }
-  void set_error(const std::string& value) { error_ = value; _has_field_.set(1); }
-
- private:
-  std::string error_{};
-
-  // Allows to preserve unknown protobuf fields for compatibility
-  // with future versions of .proto files.
-  std::string unknown_fields_;
-
-  std::bitset<2> _has_field_{};
-};
-
-
-class PERFETTO_EXPORT RegisterDataSourceRequest : public ::protozero::CppMessageObj {
- public:
-  enum FieldNumbers {
-    kDataSourceDescriptorFieldNumber = 1,
-  };
-
-  RegisterDataSourceRequest();
-  ~RegisterDataSourceRequest() override;
-  RegisterDataSourceRequest(RegisterDataSourceRequest&&) noexcept;
-  RegisterDataSourceRequest& operator=(RegisterDataSourceRequest&&);
-  RegisterDataSourceRequest(const RegisterDataSourceRequest&);
-  RegisterDataSourceRequest& operator=(const RegisterDataSourceRequest&);
-  bool operator==(const RegisterDataSourceRequest&) const;
-  bool operator!=(const RegisterDataSourceRequest& other) const { return !(*this == other); }
-
-  bool ParseFromArray(const void*, size_t) override;
-  std::string SerializeAsString() const override;
-  std::vector<uint8_t> SerializeAsArray() const override;
-  void Serialize(::protozero::Message*) const;
-
-  bool has_data_source_descriptor() const { return _has_field_[1]; }
-  const DataSourceDescriptor& data_source_descriptor() const { return *data_source_descriptor_; }
-  DataSourceDescriptor* mutable_data_source_descriptor() { _has_field_.set(1); return data_source_descriptor_.get(); }
-
- private:
-  ::protozero::CopyablePtr<DataSourceDescriptor> data_source_descriptor_;
-
-  // Allows to preserve unknown protobuf fields for compatibility
-  // with future versions of .proto files.
-  std::string unknown_fields_;
-
-  std::bitset<2> _has_field_{};
-};
-
-
-class PERFETTO_EXPORT InitializeConnectionResponse : public ::protozero::CppMessageObj {
- public:
-  enum FieldNumbers {
-    kUsingShmemProvidedByProducerFieldNumber = 1,
-    kDirectSmbPatchingSupportedFieldNumber = 2,
-  };
-
-  InitializeConnectionResponse();
-  ~InitializeConnectionResponse() override;
-  InitializeConnectionResponse(InitializeConnectionResponse&&) noexcept;
-  InitializeConnectionResponse& operator=(InitializeConnectionResponse&&);
-  InitializeConnectionResponse(const InitializeConnectionResponse&);
-  InitializeConnectionResponse& operator=(const InitializeConnectionResponse&);
-  bool operator==(const InitializeConnectionResponse&) const;
-  bool operator!=(const InitializeConnectionResponse& other) const { return !(*this == other); }
-
-  bool ParseFromArray(const void*, size_t) override;
-  std::string SerializeAsString() const override;
-  std::vector<uint8_t> SerializeAsArray() const override;
-  void Serialize(::protozero::Message*) const;
-
-  bool has_using_shmem_provided_by_producer() const { return _has_field_[1]; }
-  bool using_shmem_provided_by_producer() const { return using_shmem_provided_by_producer_; }
-  void set_using_shmem_provided_by_producer(bool value) { using_shmem_provided_by_producer_ = value; _has_field_.set(1); }
-
-  bool has_direct_smb_patching_supported() const { return _has_field_[2]; }
-  bool direct_smb_patching_supported() const { return direct_smb_patching_supported_; }
-  void set_direct_smb_patching_supported(bool value) { direct_smb_patching_supported_ = value; _has_field_.set(2); }
-
- private:
-  bool using_shmem_provided_by_producer_{};
-  bool direct_smb_patching_supported_{};
-
-  // Allows to preserve unknown protobuf fields for compatibility
-  // with future versions of .proto files.
-  std::string unknown_fields_;
-
-  std::bitset<3> _has_field_{};
-};
-
-
-class PERFETTO_EXPORT InitializeConnectionRequest : public ::protozero::CppMessageObj {
- public:
-  using ProducerSMBScrapingMode = InitializeConnectionRequest_ProducerSMBScrapingMode;
-  static constexpr auto SMB_SCRAPING_UNSPECIFIED = InitializeConnectionRequest_ProducerSMBScrapingMode_SMB_SCRAPING_UNSPECIFIED;
-  static constexpr auto SMB_SCRAPING_ENABLED = InitializeConnectionRequest_ProducerSMBScrapingMode_SMB_SCRAPING_ENABLED;
-  static constexpr auto SMB_SCRAPING_DISABLED = InitializeConnectionRequest_ProducerSMBScrapingMode_SMB_SCRAPING_DISABLED;
-  static constexpr auto ProducerSMBScrapingMode_MIN = InitializeConnectionRequest_ProducerSMBScrapingMode_SMB_SCRAPING_UNSPECIFIED;
-  static constexpr auto ProducerSMBScrapingMode_MAX = InitializeConnectionRequest_ProducerSMBScrapingMode_SMB_SCRAPING_DISABLED;
-  using ProducerBuildFlags = InitializeConnectionRequest_ProducerBuildFlags;
-  static constexpr auto BUILD_FLAGS_UNSPECIFIED = InitializeConnectionRequest_ProducerBuildFlags_BUILD_FLAGS_UNSPECIFIED;
-  static constexpr auto BUILD_FLAGS_DCHECKS_ON = InitializeConnectionRequest_ProducerBuildFlags_BUILD_FLAGS_DCHECKS_ON;
-  static constexpr auto BUILD_FLAGS_DCHECKS_OFF = InitializeConnectionRequest_ProducerBuildFlags_BUILD_FLAGS_DCHECKS_OFF;
-  static constexpr auto ProducerBuildFlags_MIN = InitializeConnectionRequest_ProducerBuildFlags_BUILD_FLAGS_UNSPECIFIED;
-  static constexpr auto ProducerBuildFlags_MAX = InitializeConnectionRequest_ProducerBuildFlags_BUILD_FLAGS_DCHECKS_OFF;
-  enum FieldNumbers {
-    kSharedMemoryPageSizeHintBytesFieldNumber = 1,
-    kSharedMemorySizeHintBytesFieldNumber = 2,
-    kProducerNameFieldNumber = 3,
-    kSmbScrapingModeFieldNumber = 4,
-    kBuildFlagsFieldNumber = 5,
-    kProducerProvidedShmemFieldNumber = 6,
-    kSdkVersionFieldNumber = 8,
-  };
-
-  InitializeConnectionRequest();
-  ~InitializeConnectionRequest() override;
-  InitializeConnectionRequest(InitializeConnectionRequest&&) noexcept;
-  InitializeConnectionRequest& operator=(InitializeConnectionRequest&&);
-  InitializeConnectionRequest(const InitializeConnectionRequest&);
-  InitializeConnectionRequest& operator=(const InitializeConnectionRequest&);
-  bool operator==(const InitializeConnectionRequest&) const;
-  bool operator!=(const InitializeConnectionRequest& other) const { return !(*this == other); }
-
-  bool ParseFromArray(const void*, size_t) override;
-  std::string SerializeAsString() const override;
-  std::vector<uint8_t> SerializeAsArray() const override;
-  void Serialize(::protozero::Message*) const;
-
-  bool has_shared_memory_page_size_hint_bytes() const { return _has_field_[1]; }
-  uint32_t shared_memory_page_size_hint_bytes() const { return shared_memory_page_size_hint_bytes_; }
-  void set_shared_memory_page_size_hint_bytes(uint32_t value) { shared_memory_page_size_hint_bytes_ = value; _has_field_.set(1); }
-
-  bool has_shared_memory_size_hint_bytes() const { return _has_field_[2]; }
-  uint32_t shared_memory_size_hint_bytes() const { return shared_memory_size_hint_bytes_; }
-  void set_shared_memory_size_hint_bytes(uint32_t value) { shared_memory_size_hint_bytes_ = value; _has_field_.set(2); }
-
-  bool has_producer_name() const { return _has_field_[3]; }
-  const std::string& producer_name() const { return producer_name_; }
-  void set_producer_name(const std::string& value) { producer_name_ = value; _has_field_.set(3); }
-
-  bool has_smb_scraping_mode() const { return _has_field_[4]; }
-  InitializeConnectionRequest_ProducerSMBScrapingMode smb_scraping_mode() const { return smb_scraping_mode_; }
-  void set_smb_scraping_mode(InitializeConnectionRequest_ProducerSMBScrapingMode value) { smb_scraping_mode_ = value; _has_field_.set(4); }
-
-  bool has_build_flags() const { return _has_field_[5]; }
-  InitializeConnectionRequest_ProducerBuildFlags build_flags() const { return build_flags_; }
-  void set_build_flags(InitializeConnectionRequest_ProducerBuildFlags value) { build_flags_ = value; _has_field_.set(5); }
-
-  bool has_producer_provided_shmem() const { return _has_field_[6]; }
-  bool producer_provided_shmem() const { return producer_provided_shmem_; }
-  void set_producer_provided_shmem(bool value) { producer_provided_shmem_ = value; _has_field_.set(6); }
-
-  bool has_sdk_version() const { return _has_field_[8]; }
-  const std::string& sdk_version() const { return sdk_version_; }
-  void set_sdk_version(const std::string& value) { sdk_version_ = value; _has_field_.set(8); }
-
- private:
-  uint32_t shared_memory_page_size_hint_bytes_{};
-  uint32_t shared_memory_size_hint_bytes_{};
-  std::string producer_name_{};
-  InitializeConnectionRequest_ProducerSMBScrapingMode smb_scraping_mode_{};
-  InitializeConnectionRequest_ProducerBuildFlags build_flags_{};
-  bool producer_provided_shmem_{};
-  std::string sdk_version_{};
-
-  // Allows to preserve unknown protobuf fields for compatibility
-  // with future versions of .proto files.
-  std::string unknown_fields_;
-
-  std::bitset<9> _has_field_{};
-};
-
-}  // namespace perfetto
-}  // namespace protos
-}  // namespace gen
-
-#endif  // PERFETTO_PROTOS_PROTOS_PERFETTO_IPC_PRODUCER_PORT_PROTO_CPP_H_
-// gen_amalgamated expanded: #include "perfetto/protozero/message.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/packed_repeated_fields.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/proto_decoder.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/scattered_heap_buffer.h"
-// DO NOT EDIT. Autogenerated by Perfetto cppgen_plugin
-#if defined(__GNUC__) || defined(__clang__)
-#pragma GCC diagnostic push
-#pragma GCC diagnostic ignored "-Wfloat-equal"
-#endif
-// gen_amalgamated expanded: #include "protos/perfetto/ipc/producer_port.gen.h"
-// gen_amalgamated expanded: #include "protos/perfetto/common/data_source_descriptor.gen.h"
-// gen_amalgamated expanded: #include "protos/perfetto/common/track_event_descriptor.gen.h"
-// gen_amalgamated expanded: #include "protos/perfetto/common/gpu_counter_descriptor.gen.h"
-// gen_amalgamated expanded: #include "protos/perfetto/config/data_source_config.gen.h"
-// gen_amalgamated expanded: #include "protos/perfetto/config/track_event/track_event_config.gen.h"
-// gen_amalgamated expanded: #include "protos/perfetto/config/test_config.gen.h"
-// gen_amalgamated expanded: #include "protos/perfetto/config/sys_stats/sys_stats_config.gen.h"
-// gen_amalgamated expanded: #include "protos/perfetto/common/sys_stats_counters.gen.h"
-// gen_amalgamated expanded: #include "protos/perfetto/config/profiling/perf_event_config.gen.h"
-// gen_amalgamated expanded: #include "protos/perfetto/common/perf_events.gen.h"
-// gen_amalgamated expanded: #include "protos/perfetto/config/profiling/java_hprof_config.gen.h"
-// gen_amalgamated expanded: #include "protos/perfetto/config/profiling/heapprofd_config.gen.h"
-// gen_amalgamated expanded: #include "protos/perfetto/config/process_stats/process_stats_config.gen.h"
-// gen_amalgamated expanded: #include "protos/perfetto/config/power/android_power_config.gen.h"
-// gen_amalgamated expanded: #include "protos/perfetto/config/interceptor_config.gen.h"
-// gen_amalgamated expanded: #include "protos/perfetto/config/interceptors/console_config.gen.h"
-// gen_amalgamated expanded: #include "protos/perfetto/config/inode_file/inode_file_config.gen.h"
-// gen_amalgamated expanded: #include "protos/perfetto/config/gpu/vulkan_memory_config.gen.h"
-// gen_amalgamated expanded: #include "protos/perfetto/config/gpu/gpu_counter_config.gen.h"
-// gen_amalgamated expanded: #include "protos/perfetto/config/ftrace/ftrace_config.gen.h"
-// gen_amalgamated expanded: #include "protos/perfetto/config/chrome/chrome_config.gen.h"
-// gen_amalgamated expanded: #include "protos/perfetto/config/android/packages_list_config.gen.h"
-// gen_amalgamated expanded: #include "protos/perfetto/config/android/android_polled_state_config.gen.h"
-// gen_amalgamated expanded: #include "protos/perfetto/config/android/android_log_config.gen.h"
-// gen_amalgamated expanded: #include "protos/perfetto/common/android_log_constants.gen.h"
-// gen_amalgamated expanded: #include "protos/perfetto/common/commit_data_request.gen.h"
-
-namespace perfetto {
-namespace protos {
-namespace gen {
-
-SyncResponse::SyncResponse() = default;
-SyncResponse::~SyncResponse() = default;
-SyncResponse::SyncResponse(const SyncResponse&) = default;
-SyncResponse& SyncResponse::operator=(const SyncResponse&) = default;
-SyncResponse::SyncResponse(SyncResponse&&) noexcept = default;
-SyncResponse& SyncResponse::operator=(SyncResponse&&) = default;
-
-bool SyncResponse::operator==(const SyncResponse& other) const {
-  return unknown_fields_ == other.unknown_fields_;
-}
-
-bool SyncResponse::ParseFromArray(const void* raw, size_t size) {
-  unknown_fields_.clear();
-  bool packed_error = false;
-
-  ::protozero::ProtoDecoder dec(raw, size);
-  for (auto field = dec.ReadField(); field.valid(); field = dec.ReadField()) {
-    if (field.id() < _has_field_.size()) {
-      _has_field_.set(field.id());
-    }
-    switch (field.id()) {
-      default:
-        field.SerializeAndAppendTo(&unknown_fields_);
-        break;
-    }
-  }
-  return !packed_error && !dec.bytes_left();
-}
-
-std::string SyncResponse::SerializeAsString() const {
-  ::protozero::HeapBuffered<::protozero::Message> msg;
-  Serialize(msg.get());
-  return msg.SerializeAsString();
-}
-
-std::vector<uint8_t> SyncResponse::SerializeAsArray() const {
-  ::protozero::HeapBuffered<::protozero::Message> msg;
-  Serialize(msg.get());
-  return msg.SerializeAsArray();
-}
-
-void SyncResponse::Serialize(::protozero::Message* msg) const {
-  msg->AppendRawProtoBytes(unknown_fields_.data(), unknown_fields_.size());
-}
-
-
-SyncRequest::SyncRequest() = default;
-SyncRequest::~SyncRequest() = default;
-SyncRequest::SyncRequest(const SyncRequest&) = default;
-SyncRequest& SyncRequest::operator=(const SyncRequest&) = default;
-SyncRequest::SyncRequest(SyncRequest&&) noexcept = default;
-SyncRequest& SyncRequest::operator=(SyncRequest&&) = default;
-
-bool SyncRequest::operator==(const SyncRequest& other) const {
-  return unknown_fields_ == other.unknown_fields_;
-}
-
-bool SyncRequest::ParseFromArray(const void* raw, size_t size) {
-  unknown_fields_.clear();
-  bool packed_error = false;
-
-  ::protozero::ProtoDecoder dec(raw, size);
-  for (auto field = dec.ReadField(); field.valid(); field = dec.ReadField()) {
-    if (field.id() < _has_field_.size()) {
-      _has_field_.set(field.id());
-    }
-    switch (field.id()) {
-      default:
-        field.SerializeAndAppendTo(&unknown_fields_);
-        break;
-    }
-  }
-  return !packed_error && !dec.bytes_left();
-}
-
-std::string SyncRequest::SerializeAsString() const {
-  ::protozero::HeapBuffered<::protozero::Message> msg;
-  Serialize(msg.get());
-  return msg.SerializeAsString();
-}
-
-std::vector<uint8_t> SyncRequest::SerializeAsArray() const {
-  ::protozero::HeapBuffered<::protozero::Message> msg;
-  Serialize(msg.get());
-  return msg.SerializeAsArray();
-}
-
-void SyncRequest::Serialize(::protozero::Message* msg) const {
-  msg->AppendRawProtoBytes(unknown_fields_.data(), unknown_fields_.size());
-}
-
-
-GetAsyncCommandResponse::GetAsyncCommandResponse() = default;
-GetAsyncCommandResponse::~GetAsyncCommandResponse() = default;
-GetAsyncCommandResponse::GetAsyncCommandResponse(const GetAsyncCommandResponse&) = default;
-GetAsyncCommandResponse& GetAsyncCommandResponse::operator=(const GetAsyncCommandResponse&) = default;
-GetAsyncCommandResponse::GetAsyncCommandResponse(GetAsyncCommandResponse&&) noexcept = default;
-GetAsyncCommandResponse& GetAsyncCommandResponse::operator=(GetAsyncCommandResponse&&) = default;
-
-bool GetAsyncCommandResponse::operator==(const GetAsyncCommandResponse& other) const {
-  return unknown_fields_ == other.unknown_fields_
-   && setup_tracing_ == other.setup_tracing_
-   && setup_data_source_ == other.setup_data_source_
-   && start_data_source_ == other.start_data_source_
-   && stop_data_source_ == other.stop_data_source_
-   && flush_ == other.flush_
-   && clear_incremental_state_ == other.clear_incremental_state_;
-}
-
-bool GetAsyncCommandResponse::ParseFromArray(const void* raw, size_t size) {
-  unknown_fields_.clear();
-  bool packed_error = false;
-
-  ::protozero::ProtoDecoder dec(raw, size);
-  for (auto field = dec.ReadField(); field.valid(); field = dec.ReadField()) {
-    if (field.id() < _has_field_.size()) {
-      _has_field_.set(field.id());
-    }
-    switch (field.id()) {
-      case 3 /* setup_tracing */:
-        (*setup_tracing_).ParseFromArray(field.data(), field.size());
-        break;
-      case 6 /* setup_data_source */:
-        (*setup_data_source_).ParseFromArray(field.data(), field.size());
-        break;
-      case 1 /* start_data_source */:
-        (*start_data_source_).ParseFromArray(field.data(), field.size());
-        break;
-      case 2 /* stop_data_source */:
-        (*stop_data_source_).ParseFromArray(field.data(), field.size());
-        break;
-      case 5 /* flush */:
-        (*flush_).ParseFromArray(field.data(), field.size());
-        break;
-      case 7 /* clear_incremental_state */:
-        (*clear_incremental_state_).ParseFromArray(field.data(), field.size());
-        break;
-      default:
-        field.SerializeAndAppendTo(&unknown_fields_);
-        break;
-    }
-  }
-  return !packed_error && !dec.bytes_left();
-}
-
-std::string GetAsyncCommandResponse::SerializeAsString() const {
-  ::protozero::HeapBuffered<::protozero::Message> msg;
-  Serialize(msg.get());
-  return msg.SerializeAsString();
-}
-
-std::vector<uint8_t> GetAsyncCommandResponse::SerializeAsArray() const {
-  ::protozero::HeapBuffered<::protozero::Message> msg;
-  Serialize(msg.get());
-  return msg.SerializeAsArray();
-}
-
-void GetAsyncCommandResponse::Serialize(::protozero::Message* msg) const {
-  // Field 3: setup_tracing
-  if (_has_field_[3]) {
-    (*setup_tracing_).Serialize(msg->BeginNestedMessage<::protozero::Message>(3));
-  }
-
-  // Field 6: setup_data_source
-  if (_has_field_[6]) {
-    (*setup_data_source_).Serialize(msg->BeginNestedMessage<::protozero::Message>(6));
-  }
-
-  // Field 1: start_data_source
-  if (_has_field_[1]) {
-    (*start_data_source_).Serialize(msg->BeginNestedMessage<::protozero::Message>(1));
-  }
-
-  // Field 2: stop_data_source
-  if (_has_field_[2]) {
-    (*stop_data_source_).Serialize(msg->BeginNestedMessage<::protozero::Message>(2));
-  }
-
-  // Field 5: flush
-  if (_has_field_[5]) {
-    (*flush_).Serialize(msg->BeginNestedMessage<::protozero::Message>(5));
-  }
-
-  // Field 7: clear_incremental_state
-  if (_has_field_[7]) {
-    (*clear_incremental_state_).Serialize(msg->BeginNestedMessage<::protozero::Message>(7));
-  }
-
-  msg->AppendRawProtoBytes(unknown_fields_.data(), unknown_fields_.size());
-}
-
-
-GetAsyncCommandResponse_ClearIncrementalState::GetAsyncCommandResponse_ClearIncrementalState() = default;
-GetAsyncCommandResponse_ClearIncrementalState::~GetAsyncCommandResponse_ClearIncrementalState() = default;
-GetAsyncCommandResponse_ClearIncrementalState::GetAsyncCommandResponse_ClearIncrementalState(const GetAsyncCommandResponse_ClearIncrementalState&) = default;
-GetAsyncCommandResponse_ClearIncrementalState& GetAsyncCommandResponse_ClearIncrementalState::operator=(const GetAsyncCommandResponse_ClearIncrementalState&) = default;
-GetAsyncCommandResponse_ClearIncrementalState::GetAsyncCommandResponse_ClearIncrementalState(GetAsyncCommandResponse_ClearIncrementalState&&) noexcept = default;
-GetAsyncCommandResponse_ClearIncrementalState& GetAsyncCommandResponse_ClearIncrementalState::operator=(GetAsyncCommandResponse_ClearIncrementalState&&) = default;
-
-bool GetAsyncCommandResponse_ClearIncrementalState::operator==(const GetAsyncCommandResponse_ClearIncrementalState& other) const {
-  return unknown_fields_ == other.unknown_fields_
-   && data_source_ids_ == other.data_source_ids_;
-}
-
-bool GetAsyncCommandResponse_ClearIncrementalState::ParseFromArray(const void* raw, size_t size) {
-  data_source_ids_.clear();
-  unknown_fields_.clear();
-  bool packed_error = false;
-
-  ::protozero::ProtoDecoder dec(raw, size);
-  for (auto field = dec.ReadField(); field.valid(); field = dec.ReadField()) {
-    if (field.id() < _has_field_.size()) {
-      _has_field_.set(field.id());
-    }
-    switch (field.id()) {
-      case 1 /* data_source_ids */:
-        data_source_ids_.emplace_back();
-        field.get(&data_source_ids_.back());
-        break;
-      default:
-        field.SerializeAndAppendTo(&unknown_fields_);
-        break;
-    }
-  }
-  return !packed_error && !dec.bytes_left();
-}
-
-std::string GetAsyncCommandResponse_ClearIncrementalState::SerializeAsString() const {
-  ::protozero::HeapBuffered<::protozero::Message> msg;
-  Serialize(msg.get());
-  return msg.SerializeAsString();
-}
-
-std::vector<uint8_t> GetAsyncCommandResponse_ClearIncrementalState::SerializeAsArray() const {
-  ::protozero::HeapBuffered<::protozero::Message> msg;
-  Serialize(msg.get());
-  return msg.SerializeAsArray();
-}
-
-void GetAsyncCommandResponse_ClearIncrementalState::Serialize(::protozero::Message* msg) const {
-  // Field 1: data_source_ids
-  for (auto& it : data_source_ids_) {
-    msg->AppendVarInt(1, it);
-  }
-
-  msg->AppendRawProtoBytes(unknown_fields_.data(), unknown_fields_.size());
-}
-
-
-GetAsyncCommandResponse_Flush::GetAsyncCommandResponse_Flush() = default;
-GetAsyncCommandResponse_Flush::~GetAsyncCommandResponse_Flush() = default;
-GetAsyncCommandResponse_Flush::GetAsyncCommandResponse_Flush(const GetAsyncCommandResponse_Flush&) = default;
-GetAsyncCommandResponse_Flush& GetAsyncCommandResponse_Flush::operator=(const GetAsyncCommandResponse_Flush&) = default;
-GetAsyncCommandResponse_Flush::GetAsyncCommandResponse_Flush(GetAsyncCommandResponse_Flush&&) noexcept = default;
-GetAsyncCommandResponse_Flush& GetAsyncCommandResponse_Flush::operator=(GetAsyncCommandResponse_Flush&&) = default;
-
-bool GetAsyncCommandResponse_Flush::operator==(const GetAsyncCommandResponse_Flush& other) const {
-  return unknown_fields_ == other.unknown_fields_
-   && data_source_ids_ == other.data_source_ids_
-   && request_id_ == other.request_id_;
-}
-
-bool GetAsyncCommandResponse_Flush::ParseFromArray(const void* raw, size_t size) {
-  data_source_ids_.clear();
-  unknown_fields_.clear();
-  bool packed_error = false;
-
-  ::protozero::ProtoDecoder dec(raw, size);
-  for (auto field = dec.ReadField(); field.valid(); field = dec.ReadField()) {
-    if (field.id() < _has_field_.size()) {
-      _has_field_.set(field.id());
-    }
-    switch (field.id()) {
-      case 1 /* data_source_ids */:
-        data_source_ids_.emplace_back();
-        field.get(&data_source_ids_.back());
-        break;
-      case 2 /* request_id */:
-        field.get(&request_id_);
-        break;
-      default:
-        field.SerializeAndAppendTo(&unknown_fields_);
-        break;
-    }
-  }
-  return !packed_error && !dec.bytes_left();
-}
-
-std::string GetAsyncCommandResponse_Flush::SerializeAsString() const {
-  ::protozero::HeapBuffered<::protozero::Message> msg;
-  Serialize(msg.get());
-  return msg.SerializeAsString();
-}
-
-std::vector<uint8_t> GetAsyncCommandResponse_Flush::SerializeAsArray() const {
-  ::protozero::HeapBuffered<::protozero::Message> msg;
-  Serialize(msg.get());
-  return msg.SerializeAsArray();
-}
-
-void GetAsyncCommandResponse_Flush::Serialize(::protozero::Message* msg) const {
-  // Field 1: data_source_ids
-  for (auto& it : data_source_ids_) {
-    msg->AppendVarInt(1, it);
-  }
-
-  // Field 2: request_id
-  if (_has_field_[2]) {
-    msg->AppendVarInt(2, request_id_);
-  }
-
-  msg->AppendRawProtoBytes(unknown_fields_.data(), unknown_fields_.size());
-}
-
-
-GetAsyncCommandResponse_StopDataSource::GetAsyncCommandResponse_StopDataSource() = default;
-GetAsyncCommandResponse_StopDataSource::~GetAsyncCommandResponse_StopDataSource() = default;
-GetAsyncCommandResponse_StopDataSource::GetAsyncCommandResponse_StopDataSource(const GetAsyncCommandResponse_StopDataSource&) = default;
-GetAsyncCommandResponse_StopDataSource& GetAsyncCommandResponse_StopDataSource::operator=(const GetAsyncCommandResponse_StopDataSource&) = default;
-GetAsyncCommandResponse_StopDataSource::GetAsyncCommandResponse_StopDataSource(GetAsyncCommandResponse_StopDataSource&&) noexcept = default;
-GetAsyncCommandResponse_StopDataSource& GetAsyncCommandResponse_StopDataSource::operator=(GetAsyncCommandResponse_StopDataSource&&) = default;
-
-bool GetAsyncCommandResponse_StopDataSource::operator==(const GetAsyncCommandResponse_StopDataSource& other) const {
-  return unknown_fields_ == other.unknown_fields_
-   && instance_id_ == other.instance_id_;
-}
-
-bool GetAsyncCommandResponse_StopDataSource::ParseFromArray(const void* raw, size_t size) {
-  unknown_fields_.clear();
-  bool packed_error = false;
-
-  ::protozero::ProtoDecoder dec(raw, size);
-  for (auto field = dec.ReadField(); field.valid(); field = dec.ReadField()) {
-    if (field.id() < _has_field_.size()) {
-      _has_field_.set(field.id());
-    }
-    switch (field.id()) {
-      case 1 /* instance_id */:
-        field.get(&instance_id_);
-        break;
-      default:
-        field.SerializeAndAppendTo(&unknown_fields_);
-        break;
-    }
-  }
-  return !packed_error && !dec.bytes_left();
-}
-
-std::string GetAsyncCommandResponse_StopDataSource::SerializeAsString() const {
-  ::protozero::HeapBuffered<::protozero::Message> msg;
-  Serialize(msg.get());
-  return msg.SerializeAsString();
-}
-
-std::vector<uint8_t> GetAsyncCommandResponse_StopDataSource::SerializeAsArray() const {
-  ::protozero::HeapBuffered<::protozero::Message> msg;
-  Serialize(msg.get());
-  return msg.SerializeAsArray();
-}
-
-void GetAsyncCommandResponse_StopDataSource::Serialize(::protozero::Message* msg) const {
-  // Field 1: instance_id
-  if (_has_field_[1]) {
-    msg->AppendVarInt(1, instance_id_);
-  }
-
-  msg->AppendRawProtoBytes(unknown_fields_.data(), unknown_fields_.size());
-}
-
-
-GetAsyncCommandResponse_StartDataSource::GetAsyncCommandResponse_StartDataSource() = default;
-GetAsyncCommandResponse_StartDataSource::~GetAsyncCommandResponse_StartDataSource() = default;
-GetAsyncCommandResponse_StartDataSource::GetAsyncCommandResponse_StartDataSource(const GetAsyncCommandResponse_StartDataSource&) = default;
-GetAsyncCommandResponse_StartDataSource& GetAsyncCommandResponse_StartDataSource::operator=(const GetAsyncCommandResponse_StartDataSource&) = default;
-GetAsyncCommandResponse_StartDataSource::GetAsyncCommandResponse_StartDataSource(GetAsyncCommandResponse_StartDataSource&&) noexcept = default;
-GetAsyncCommandResponse_StartDataSource& GetAsyncCommandResponse_StartDataSource::operator=(GetAsyncCommandResponse_StartDataSource&&) = default;
-
-bool GetAsyncCommandResponse_StartDataSource::operator==(const GetAsyncCommandResponse_StartDataSource& other) const {
-  return unknown_fields_ == other.unknown_fields_
-   && new_instance_id_ == other.new_instance_id_
-   && config_ == other.config_;
-}
-
-bool GetAsyncCommandResponse_StartDataSource::ParseFromArray(const void* raw, size_t size) {
-  unknown_fields_.clear();
-  bool packed_error = false;
-
-  ::protozero::ProtoDecoder dec(raw, size);
-  for (auto field = dec.ReadField(); field.valid(); field = dec.ReadField()) {
-    if (field.id() < _has_field_.size()) {
-      _has_field_.set(field.id());
-    }
-    switch (field.id()) {
-      case 1 /* new_instance_id */:
-        field.get(&new_instance_id_);
-        break;
-      case 2 /* config */:
-        (*config_).ParseFromArray(field.data(), field.size());
-        break;
-      default:
-        field.SerializeAndAppendTo(&unknown_fields_);
-        break;
-    }
-  }
-  return !packed_error && !dec.bytes_left();
-}
-
-std::string GetAsyncCommandResponse_StartDataSource::SerializeAsString() const {
-  ::protozero::HeapBuffered<::protozero::Message> msg;
-  Serialize(msg.get());
-  return msg.SerializeAsString();
-}
-
-std::vector<uint8_t> GetAsyncCommandResponse_StartDataSource::SerializeAsArray() const {
-  ::protozero::HeapBuffered<::protozero::Message> msg;
-  Serialize(msg.get());
-  return msg.SerializeAsArray();
-}
-
-void GetAsyncCommandResponse_StartDataSource::Serialize(::protozero::Message* msg) const {
-  // Field 1: new_instance_id
-  if (_has_field_[1]) {
-    msg->AppendVarInt(1, new_instance_id_);
-  }
-
-  // Field 2: config
-  if (_has_field_[2]) {
-    (*config_).Serialize(msg->BeginNestedMessage<::protozero::Message>(2));
-  }
-
-  msg->AppendRawProtoBytes(unknown_fields_.data(), unknown_fields_.size());
-}
-
-
-GetAsyncCommandResponse_SetupDataSource::GetAsyncCommandResponse_SetupDataSource() = default;
-GetAsyncCommandResponse_SetupDataSource::~GetAsyncCommandResponse_SetupDataSource() = default;
-GetAsyncCommandResponse_SetupDataSource::GetAsyncCommandResponse_SetupDataSource(const GetAsyncCommandResponse_SetupDataSource&) = default;
-GetAsyncCommandResponse_SetupDataSource& GetAsyncCommandResponse_SetupDataSource::operator=(const GetAsyncCommandResponse_SetupDataSource&) = default;
-GetAsyncCommandResponse_SetupDataSource::GetAsyncCommandResponse_SetupDataSource(GetAsyncCommandResponse_SetupDataSource&&) noexcept = default;
-GetAsyncCommandResponse_SetupDataSource& GetAsyncCommandResponse_SetupDataSource::operator=(GetAsyncCommandResponse_SetupDataSource&&) = default;
-
-bool GetAsyncCommandResponse_SetupDataSource::operator==(const GetAsyncCommandResponse_SetupDataSource& other) const {
-  return unknown_fields_ == other.unknown_fields_
-   && new_instance_id_ == other.new_instance_id_
-   && config_ == other.config_;
-}
-
-bool GetAsyncCommandResponse_SetupDataSource::ParseFromArray(const void* raw, size_t size) {
-  unknown_fields_.clear();
-  bool packed_error = false;
-
-  ::protozero::ProtoDecoder dec(raw, size);
-  for (auto field = dec.ReadField(); field.valid(); field = dec.ReadField()) {
-    if (field.id() < _has_field_.size()) {
-      _has_field_.set(field.id());
-    }
-    switch (field.id()) {
-      case 1 /* new_instance_id */:
-        field.get(&new_instance_id_);
-        break;
-      case 2 /* config */:
-        (*config_).ParseFromArray(field.data(), field.size());
-        break;
-      default:
-        field.SerializeAndAppendTo(&unknown_fields_);
-        break;
-    }
-  }
-  return !packed_error && !dec.bytes_left();
-}
-
-std::string GetAsyncCommandResponse_SetupDataSource::SerializeAsString() const {
-  ::protozero::HeapBuffered<::protozero::Message> msg;
-  Serialize(msg.get());
-  return msg.SerializeAsString();
-}
-
-std::vector<uint8_t> GetAsyncCommandResponse_SetupDataSource::SerializeAsArray() const {
-  ::protozero::HeapBuffered<::protozero::Message> msg;
-  Serialize(msg.get());
-  return msg.SerializeAsArray();
-}
-
-void GetAsyncCommandResponse_SetupDataSource::Serialize(::protozero::Message* msg) const {
-  // Field 1: new_instance_id
-  if (_has_field_[1]) {
-    msg->AppendVarInt(1, new_instance_id_);
-  }
-
-  // Field 2: config
-  if (_has_field_[2]) {
-    (*config_).Serialize(msg->BeginNestedMessage<::protozero::Message>(2));
-  }
-
-  msg->AppendRawProtoBytes(unknown_fields_.data(), unknown_fields_.size());
-}
-
-
-GetAsyncCommandResponse_SetupTracing::GetAsyncCommandResponse_SetupTracing() = default;
-GetAsyncCommandResponse_SetupTracing::~GetAsyncCommandResponse_SetupTracing() = default;
-GetAsyncCommandResponse_SetupTracing::GetAsyncCommandResponse_SetupTracing(const GetAsyncCommandResponse_SetupTracing&) = default;
-GetAsyncCommandResponse_SetupTracing& GetAsyncCommandResponse_SetupTracing::operator=(const GetAsyncCommandResponse_SetupTracing&) = default;
-GetAsyncCommandResponse_SetupTracing::GetAsyncCommandResponse_SetupTracing(GetAsyncCommandResponse_SetupTracing&&) noexcept = default;
-GetAsyncCommandResponse_SetupTracing& GetAsyncCommandResponse_SetupTracing::operator=(GetAsyncCommandResponse_SetupTracing&&) = default;
-
-bool GetAsyncCommandResponse_SetupTracing::operator==(const GetAsyncCommandResponse_SetupTracing& other) const {
-  return unknown_fields_ == other.unknown_fields_
-   && shared_buffer_page_size_kb_ == other.shared_buffer_page_size_kb_;
-}
-
-bool GetAsyncCommandResponse_SetupTracing::ParseFromArray(const void* raw, size_t size) {
-  unknown_fields_.clear();
-  bool packed_error = false;
-
-  ::protozero::ProtoDecoder dec(raw, size);
-  for (auto field = dec.ReadField(); field.valid(); field = dec.ReadField()) {
-    if (field.id() < _has_field_.size()) {
-      _has_field_.set(field.id());
-    }
-    switch (field.id()) {
-      case 1 /* shared_buffer_page_size_kb */:
-        field.get(&shared_buffer_page_size_kb_);
-        break;
-      default:
-        field.SerializeAndAppendTo(&unknown_fields_);
-        break;
-    }
-  }
-  return !packed_error && !dec.bytes_left();
-}
-
-std::string GetAsyncCommandResponse_SetupTracing::SerializeAsString() const {
-  ::protozero::HeapBuffered<::protozero::Message> msg;
-  Serialize(msg.get());
-  return msg.SerializeAsString();
-}
-
-std::vector<uint8_t> GetAsyncCommandResponse_SetupTracing::SerializeAsArray() const {
-  ::protozero::HeapBuffered<::protozero::Message> msg;
-  Serialize(msg.get());
-  return msg.SerializeAsArray();
-}
-
-void GetAsyncCommandResponse_SetupTracing::Serialize(::protozero::Message* msg) const {
-  // Field 1: shared_buffer_page_size_kb
-  if (_has_field_[1]) {
-    msg->AppendVarInt(1, shared_buffer_page_size_kb_);
-  }
-
-  msg->AppendRawProtoBytes(unknown_fields_.data(), unknown_fields_.size());
-}
-
-
-GetAsyncCommandRequest::GetAsyncCommandRequest() = default;
-GetAsyncCommandRequest::~GetAsyncCommandRequest() = default;
-GetAsyncCommandRequest::GetAsyncCommandRequest(const GetAsyncCommandRequest&) = default;
-GetAsyncCommandRequest& GetAsyncCommandRequest::operator=(const GetAsyncCommandRequest&) = default;
-GetAsyncCommandRequest::GetAsyncCommandRequest(GetAsyncCommandRequest&&) noexcept = default;
-GetAsyncCommandRequest& GetAsyncCommandRequest::operator=(GetAsyncCommandRequest&&) = default;
-
-bool GetAsyncCommandRequest::operator==(const GetAsyncCommandRequest& other) const {
-  return unknown_fields_ == other.unknown_fields_;
-}
-
-bool GetAsyncCommandRequest::ParseFromArray(const void* raw, size_t size) {
-  unknown_fields_.clear();
-  bool packed_error = false;
-
-  ::protozero::ProtoDecoder dec(raw, size);
-  for (auto field = dec.ReadField(); field.valid(); field = dec.ReadField()) {
-    if (field.id() < _has_field_.size()) {
-      _has_field_.set(field.id());
-    }
-    switch (field.id()) {
-      default:
-        field.SerializeAndAppendTo(&unknown_fields_);
-        break;
-    }
-  }
-  return !packed_error && !dec.bytes_left();
-}
-
-std::string GetAsyncCommandRequest::SerializeAsString() const {
-  ::protozero::HeapBuffered<::protozero::Message> msg;
-  Serialize(msg.get());
-  return msg.SerializeAsString();
-}
-
-std::vector<uint8_t> GetAsyncCommandRequest::SerializeAsArray() const {
-  ::protozero::HeapBuffered<::protozero::Message> msg;
-  Serialize(msg.get());
-  return msg.SerializeAsArray();
-}
-
-void GetAsyncCommandRequest::Serialize(::protozero::Message* msg) const {
-  msg->AppendRawProtoBytes(unknown_fields_.data(), unknown_fields_.size());
-}
-
-
-ActivateTriggersResponse::ActivateTriggersResponse() = default;
-ActivateTriggersResponse::~ActivateTriggersResponse() = default;
-ActivateTriggersResponse::ActivateTriggersResponse(const ActivateTriggersResponse&) = default;
-ActivateTriggersResponse& ActivateTriggersResponse::operator=(const ActivateTriggersResponse&) = default;
-ActivateTriggersResponse::ActivateTriggersResponse(ActivateTriggersResponse&&) noexcept = default;
-ActivateTriggersResponse& ActivateTriggersResponse::operator=(ActivateTriggersResponse&&) = default;
-
-bool ActivateTriggersResponse::operator==(const ActivateTriggersResponse& other) const {
-  return unknown_fields_ == other.unknown_fields_;
-}
-
-bool ActivateTriggersResponse::ParseFromArray(const void* raw, size_t size) {
-  unknown_fields_.clear();
-  bool packed_error = false;
-
-  ::protozero::ProtoDecoder dec(raw, size);
-  for (auto field = dec.ReadField(); field.valid(); field = dec.ReadField()) {
-    if (field.id() < _has_field_.size()) {
-      _has_field_.set(field.id());
-    }
-    switch (field.id()) {
-      default:
-        field.SerializeAndAppendTo(&unknown_fields_);
-        break;
-    }
-  }
-  return !packed_error && !dec.bytes_left();
-}
-
-std::string ActivateTriggersResponse::SerializeAsString() const {
-  ::protozero::HeapBuffered<::protozero::Message> msg;
-  Serialize(msg.get());
-  return msg.SerializeAsString();
-}
-
-std::vector<uint8_t> ActivateTriggersResponse::SerializeAsArray() const {
-  ::protozero::HeapBuffered<::protozero::Message> msg;
-  Serialize(msg.get());
-  return msg.SerializeAsArray();
-}
-
-void ActivateTriggersResponse::Serialize(::protozero::Message* msg) const {
-  msg->AppendRawProtoBytes(unknown_fields_.data(), unknown_fields_.size());
-}
-
-
-ActivateTriggersRequest::ActivateTriggersRequest() = default;
-ActivateTriggersRequest::~ActivateTriggersRequest() = default;
-ActivateTriggersRequest::ActivateTriggersRequest(const ActivateTriggersRequest&) = default;
-ActivateTriggersRequest& ActivateTriggersRequest::operator=(const ActivateTriggersRequest&) = default;
-ActivateTriggersRequest::ActivateTriggersRequest(ActivateTriggersRequest&&) noexcept = default;
-ActivateTriggersRequest& ActivateTriggersRequest::operator=(ActivateTriggersRequest&&) = default;
-
-bool ActivateTriggersRequest::operator==(const ActivateTriggersRequest& other) const {
-  return unknown_fields_ == other.unknown_fields_
-   && trigger_names_ == other.trigger_names_;
-}
-
-bool ActivateTriggersRequest::ParseFromArray(const void* raw, size_t size) {
-  trigger_names_.clear();
-  unknown_fields_.clear();
-  bool packed_error = false;
-
-  ::protozero::ProtoDecoder dec(raw, size);
-  for (auto field = dec.ReadField(); field.valid(); field = dec.ReadField()) {
-    if (field.id() < _has_field_.size()) {
-      _has_field_.set(field.id());
-    }
-    switch (field.id()) {
-      case 1 /* trigger_names */:
-        trigger_names_.emplace_back();
-        field.get(&trigger_names_.back());
-        break;
-      default:
-        field.SerializeAndAppendTo(&unknown_fields_);
-        break;
-    }
-  }
-  return !packed_error && !dec.bytes_left();
-}
-
-std::string ActivateTriggersRequest::SerializeAsString() const {
-  ::protozero::HeapBuffered<::protozero::Message> msg;
-  Serialize(msg.get());
-  return msg.SerializeAsString();
-}
-
-std::vector<uint8_t> ActivateTriggersRequest::SerializeAsArray() const {
-  ::protozero::HeapBuffered<::protozero::Message> msg;
-  Serialize(msg.get());
-  return msg.SerializeAsArray();
-}
-
-void ActivateTriggersRequest::Serialize(::protozero::Message* msg) const {
-  // Field 1: trigger_names
-  for (auto& it : trigger_names_) {
-    msg->AppendString(1, it);
-  }
-
-  msg->AppendRawProtoBytes(unknown_fields_.data(), unknown_fields_.size());
-}
-
-
-NotifyDataSourceStoppedResponse::NotifyDataSourceStoppedResponse() = default;
-NotifyDataSourceStoppedResponse::~NotifyDataSourceStoppedResponse() = default;
-NotifyDataSourceStoppedResponse::NotifyDataSourceStoppedResponse(const NotifyDataSourceStoppedResponse&) = default;
-NotifyDataSourceStoppedResponse& NotifyDataSourceStoppedResponse::operator=(const NotifyDataSourceStoppedResponse&) = default;
-NotifyDataSourceStoppedResponse::NotifyDataSourceStoppedResponse(NotifyDataSourceStoppedResponse&&) noexcept = default;
-NotifyDataSourceStoppedResponse& NotifyDataSourceStoppedResponse::operator=(NotifyDataSourceStoppedResponse&&) = default;
-
-bool NotifyDataSourceStoppedResponse::operator==(const NotifyDataSourceStoppedResponse& other) const {
-  return unknown_fields_ == other.unknown_fields_;
-}
-
-bool NotifyDataSourceStoppedResponse::ParseFromArray(const void* raw, size_t size) {
-  unknown_fields_.clear();
-  bool packed_error = false;
-
-  ::protozero::ProtoDecoder dec(raw, size);
-  for (auto field = dec.ReadField(); field.valid(); field = dec.ReadField()) {
-    if (field.id() < _has_field_.size()) {
-      _has_field_.set(field.id());
-    }
-    switch (field.id()) {
-      default:
-        field.SerializeAndAppendTo(&unknown_fields_);
-        break;
-    }
-  }
-  return !packed_error && !dec.bytes_left();
-}
-
-std::string NotifyDataSourceStoppedResponse::SerializeAsString() const {
-  ::protozero::HeapBuffered<::protozero::Message> msg;
-  Serialize(msg.get());
-  return msg.SerializeAsString();
-}
-
-std::vector<uint8_t> NotifyDataSourceStoppedResponse::SerializeAsArray() const {
-  ::protozero::HeapBuffered<::protozero::Message> msg;
-  Serialize(msg.get());
-  return msg.SerializeAsArray();
-}
-
-void NotifyDataSourceStoppedResponse::Serialize(::protozero::Message* msg) const {
-  msg->AppendRawProtoBytes(unknown_fields_.data(), unknown_fields_.size());
-}
-
-
-NotifyDataSourceStoppedRequest::NotifyDataSourceStoppedRequest() = default;
-NotifyDataSourceStoppedRequest::~NotifyDataSourceStoppedRequest() = default;
-NotifyDataSourceStoppedRequest::NotifyDataSourceStoppedRequest(const NotifyDataSourceStoppedRequest&) = default;
-NotifyDataSourceStoppedRequest& NotifyDataSourceStoppedRequest::operator=(const NotifyDataSourceStoppedRequest&) = default;
-NotifyDataSourceStoppedRequest::NotifyDataSourceStoppedRequest(NotifyDataSourceStoppedRequest&&) noexcept = default;
-NotifyDataSourceStoppedRequest& NotifyDataSourceStoppedRequest::operator=(NotifyDataSourceStoppedRequest&&) = default;
-
-bool NotifyDataSourceStoppedRequest::operator==(const NotifyDataSourceStoppedRequest& other) const {
-  return unknown_fields_ == other.unknown_fields_
-   && data_source_id_ == other.data_source_id_;
-}
-
-bool NotifyDataSourceStoppedRequest::ParseFromArray(const void* raw, size_t size) {
-  unknown_fields_.clear();
-  bool packed_error = false;
-
-  ::protozero::ProtoDecoder dec(raw, size);
-  for (auto field = dec.ReadField(); field.valid(); field = dec.ReadField()) {
-    if (field.id() < _has_field_.size()) {
-      _has_field_.set(field.id());
-    }
-    switch (field.id()) {
-      case 1 /* data_source_id */:
-        field.get(&data_source_id_);
-        break;
-      default:
-        field.SerializeAndAppendTo(&unknown_fields_);
-        break;
-    }
-  }
-  return !packed_error && !dec.bytes_left();
-}
-
-std::string NotifyDataSourceStoppedRequest::SerializeAsString() const {
-  ::protozero::HeapBuffered<::protozero::Message> msg;
-  Serialize(msg.get());
-  return msg.SerializeAsString();
-}
-
-std::vector<uint8_t> NotifyDataSourceStoppedRequest::SerializeAsArray() const {
-  ::protozero::HeapBuffered<::protozero::Message> msg;
-  Serialize(msg.get());
-  return msg.SerializeAsArray();
-}
-
-void NotifyDataSourceStoppedRequest::Serialize(::protozero::Message* msg) const {
-  // Field 1: data_source_id
-  if (_has_field_[1]) {
-    msg->AppendVarInt(1, data_source_id_);
-  }
-
-  msg->AppendRawProtoBytes(unknown_fields_.data(), unknown_fields_.size());
-}
-
-
-NotifyDataSourceStartedResponse::NotifyDataSourceStartedResponse() = default;
-NotifyDataSourceStartedResponse::~NotifyDataSourceStartedResponse() = default;
-NotifyDataSourceStartedResponse::NotifyDataSourceStartedResponse(const NotifyDataSourceStartedResponse&) = default;
-NotifyDataSourceStartedResponse& NotifyDataSourceStartedResponse::operator=(const NotifyDataSourceStartedResponse&) = default;
-NotifyDataSourceStartedResponse::NotifyDataSourceStartedResponse(NotifyDataSourceStartedResponse&&) noexcept = default;
-NotifyDataSourceStartedResponse& NotifyDataSourceStartedResponse::operator=(NotifyDataSourceStartedResponse&&) = default;
-
-bool NotifyDataSourceStartedResponse::operator==(const NotifyDataSourceStartedResponse& other) const {
-  return unknown_fields_ == other.unknown_fields_;
-}
-
-bool NotifyDataSourceStartedResponse::ParseFromArray(const void* raw, size_t size) {
-  unknown_fields_.clear();
-  bool packed_error = false;
-
-  ::protozero::ProtoDecoder dec(raw, size);
-  for (auto field = dec.ReadField(); field.valid(); field = dec.ReadField()) {
-    if (field.id() < _has_field_.size()) {
-      _has_field_.set(field.id());
-    }
-    switch (field.id()) {
-      default:
-        field.SerializeAndAppendTo(&unknown_fields_);
-        break;
-    }
-  }
-  return !packed_error && !dec.bytes_left();
-}
-
-std::string NotifyDataSourceStartedResponse::SerializeAsString() const {
-  ::protozero::HeapBuffered<::protozero::Message> msg;
-  Serialize(msg.get());
-  return msg.SerializeAsString();
-}
-
-std::vector<uint8_t> NotifyDataSourceStartedResponse::SerializeAsArray() const {
-  ::protozero::HeapBuffered<::protozero::Message> msg;
-  Serialize(msg.get());
-  return msg.SerializeAsArray();
-}
-
-void NotifyDataSourceStartedResponse::Serialize(::protozero::Message* msg) const {
-  msg->AppendRawProtoBytes(unknown_fields_.data(), unknown_fields_.size());
-}
-
-
-NotifyDataSourceStartedRequest::NotifyDataSourceStartedRequest() = default;
-NotifyDataSourceStartedRequest::~NotifyDataSourceStartedRequest() = default;
-NotifyDataSourceStartedRequest::NotifyDataSourceStartedRequest(const NotifyDataSourceStartedRequest&) = default;
-NotifyDataSourceStartedRequest& NotifyDataSourceStartedRequest::operator=(const NotifyDataSourceStartedRequest&) = default;
-NotifyDataSourceStartedRequest::NotifyDataSourceStartedRequest(NotifyDataSourceStartedRequest&&) noexcept = default;
-NotifyDataSourceStartedRequest& NotifyDataSourceStartedRequest::operator=(NotifyDataSourceStartedRequest&&) = default;
-
-bool NotifyDataSourceStartedRequest::operator==(const NotifyDataSourceStartedRequest& other) const {
-  return unknown_fields_ == other.unknown_fields_
-   && data_source_id_ == other.data_source_id_;
-}
-
-bool NotifyDataSourceStartedRequest::ParseFromArray(const void* raw, size_t size) {
-  unknown_fields_.clear();
-  bool packed_error = false;
-
-  ::protozero::ProtoDecoder dec(raw, size);
-  for (auto field = dec.ReadField(); field.valid(); field = dec.ReadField()) {
-    if (field.id() < _has_field_.size()) {
-      _has_field_.set(field.id());
-    }
-    switch (field.id()) {
-      case 1 /* data_source_id */:
-        field.get(&data_source_id_);
-        break;
-      default:
-        field.SerializeAndAppendTo(&unknown_fields_);
-        break;
-    }
-  }
-  return !packed_error && !dec.bytes_left();
-}
-
-std::string NotifyDataSourceStartedRequest::SerializeAsString() const {
-  ::protozero::HeapBuffered<::protozero::Message> msg;
-  Serialize(msg.get());
-  return msg.SerializeAsString();
-}
-
-std::vector<uint8_t> NotifyDataSourceStartedRequest::SerializeAsArray() const {
-  ::protozero::HeapBuffered<::protozero::Message> msg;
-  Serialize(msg.get());
-  return msg.SerializeAsArray();
-}
-
-void NotifyDataSourceStartedRequest::Serialize(::protozero::Message* msg) const {
-  // Field 1: data_source_id
-  if (_has_field_[1]) {
-    msg->AppendVarInt(1, data_source_id_);
-  }
-
-  msg->AppendRawProtoBytes(unknown_fields_.data(), unknown_fields_.size());
-}
-
-
-CommitDataResponse::CommitDataResponse() = default;
-CommitDataResponse::~CommitDataResponse() = default;
-CommitDataResponse::CommitDataResponse(const CommitDataResponse&) = default;
-CommitDataResponse& CommitDataResponse::operator=(const CommitDataResponse&) = default;
-CommitDataResponse::CommitDataResponse(CommitDataResponse&&) noexcept = default;
-CommitDataResponse& CommitDataResponse::operator=(CommitDataResponse&&) = default;
-
-bool CommitDataResponse::operator==(const CommitDataResponse& other) const {
-  return unknown_fields_ == other.unknown_fields_;
-}
-
-bool CommitDataResponse::ParseFromArray(const void* raw, size_t size) {
-  unknown_fields_.clear();
-  bool packed_error = false;
-
-  ::protozero::ProtoDecoder dec(raw, size);
-  for (auto field = dec.ReadField(); field.valid(); field = dec.ReadField()) {
-    if (field.id() < _has_field_.size()) {
-      _has_field_.set(field.id());
-    }
-    switch (field.id()) {
-      default:
-        field.SerializeAndAppendTo(&unknown_fields_);
-        break;
-    }
-  }
-  return !packed_error && !dec.bytes_left();
-}
-
-std::string CommitDataResponse::SerializeAsString() const {
-  ::protozero::HeapBuffered<::protozero::Message> msg;
-  Serialize(msg.get());
-  return msg.SerializeAsString();
-}
-
-std::vector<uint8_t> CommitDataResponse::SerializeAsArray() const {
-  ::protozero::HeapBuffered<::protozero::Message> msg;
-  Serialize(msg.get());
-  return msg.SerializeAsArray();
-}
-
-void CommitDataResponse::Serialize(::protozero::Message* msg) const {
-  msg->AppendRawProtoBytes(unknown_fields_.data(), unknown_fields_.size());
-}
-
-
-UnregisterTraceWriterResponse::UnregisterTraceWriterResponse() = default;
-UnregisterTraceWriterResponse::~UnregisterTraceWriterResponse() = default;
-UnregisterTraceWriterResponse::UnregisterTraceWriterResponse(const UnregisterTraceWriterResponse&) = default;
-UnregisterTraceWriterResponse& UnregisterTraceWriterResponse::operator=(const UnregisterTraceWriterResponse&) = default;
-UnregisterTraceWriterResponse::UnregisterTraceWriterResponse(UnregisterTraceWriterResponse&&) noexcept = default;
-UnregisterTraceWriterResponse& UnregisterTraceWriterResponse::operator=(UnregisterTraceWriterResponse&&) = default;
-
-bool UnregisterTraceWriterResponse::operator==(const UnregisterTraceWriterResponse& other) const {
-  return unknown_fields_ == other.unknown_fields_;
-}
-
-bool UnregisterTraceWriterResponse::ParseFromArray(const void* raw, size_t size) {
-  unknown_fields_.clear();
-  bool packed_error = false;
-
-  ::protozero::ProtoDecoder dec(raw, size);
-  for (auto field = dec.ReadField(); field.valid(); field = dec.ReadField()) {
-    if (field.id() < _has_field_.size()) {
-      _has_field_.set(field.id());
-    }
-    switch (field.id()) {
-      default:
-        field.SerializeAndAppendTo(&unknown_fields_);
-        break;
-    }
-  }
-  return !packed_error && !dec.bytes_left();
-}
-
-std::string UnregisterTraceWriterResponse::SerializeAsString() const {
-  ::protozero::HeapBuffered<::protozero::Message> msg;
-  Serialize(msg.get());
-  return msg.SerializeAsString();
-}
-
-std::vector<uint8_t> UnregisterTraceWriterResponse::SerializeAsArray() const {
-  ::protozero::HeapBuffered<::protozero::Message> msg;
-  Serialize(msg.get());
-  return msg.SerializeAsArray();
-}
-
-void UnregisterTraceWriterResponse::Serialize(::protozero::Message* msg) const {
-  msg->AppendRawProtoBytes(unknown_fields_.data(), unknown_fields_.size());
-}
-
-
-UnregisterTraceWriterRequest::UnregisterTraceWriterRequest() = default;
-UnregisterTraceWriterRequest::~UnregisterTraceWriterRequest() = default;
-UnregisterTraceWriterRequest::UnregisterTraceWriterRequest(const UnregisterTraceWriterRequest&) = default;
-UnregisterTraceWriterRequest& UnregisterTraceWriterRequest::operator=(const UnregisterTraceWriterRequest&) = default;
-UnregisterTraceWriterRequest::UnregisterTraceWriterRequest(UnregisterTraceWriterRequest&&) noexcept = default;
-UnregisterTraceWriterRequest& UnregisterTraceWriterRequest::operator=(UnregisterTraceWriterRequest&&) = default;
-
-bool UnregisterTraceWriterRequest::operator==(const UnregisterTraceWriterRequest& other) const {
-  return unknown_fields_ == other.unknown_fields_
-   && trace_writer_id_ == other.trace_writer_id_;
-}
-
-bool UnregisterTraceWriterRequest::ParseFromArray(const void* raw, size_t size) {
-  unknown_fields_.clear();
-  bool packed_error = false;
-
-  ::protozero::ProtoDecoder dec(raw, size);
-  for (auto field = dec.ReadField(); field.valid(); field = dec.ReadField()) {
-    if (field.id() < _has_field_.size()) {
-      _has_field_.set(field.id());
-    }
-    switch (field.id()) {
-      case 1 /* trace_writer_id */:
-        field.get(&trace_writer_id_);
-        break;
-      default:
-        field.SerializeAndAppendTo(&unknown_fields_);
-        break;
-    }
-  }
-  return !packed_error && !dec.bytes_left();
-}
-
-std::string UnregisterTraceWriterRequest::SerializeAsString() const {
-  ::protozero::HeapBuffered<::protozero::Message> msg;
-  Serialize(msg.get());
-  return msg.SerializeAsString();
-}
-
-std::vector<uint8_t> UnregisterTraceWriterRequest::SerializeAsArray() const {
-  ::protozero::HeapBuffered<::protozero::Message> msg;
-  Serialize(msg.get());
-  return msg.SerializeAsArray();
-}
-
-void UnregisterTraceWriterRequest::Serialize(::protozero::Message* msg) const {
-  // Field 1: trace_writer_id
-  if (_has_field_[1]) {
-    msg->AppendVarInt(1, trace_writer_id_);
-  }
-
-  msg->AppendRawProtoBytes(unknown_fields_.data(), unknown_fields_.size());
-}
-
-
-RegisterTraceWriterResponse::RegisterTraceWriterResponse() = default;
-RegisterTraceWriterResponse::~RegisterTraceWriterResponse() = default;
-RegisterTraceWriterResponse::RegisterTraceWriterResponse(const RegisterTraceWriterResponse&) = default;
-RegisterTraceWriterResponse& RegisterTraceWriterResponse::operator=(const RegisterTraceWriterResponse&) = default;
-RegisterTraceWriterResponse::RegisterTraceWriterResponse(RegisterTraceWriterResponse&&) noexcept = default;
-RegisterTraceWriterResponse& RegisterTraceWriterResponse::operator=(RegisterTraceWriterResponse&&) = default;
-
-bool RegisterTraceWriterResponse::operator==(const RegisterTraceWriterResponse& other) const {
-  return unknown_fields_ == other.unknown_fields_;
-}
-
-bool RegisterTraceWriterResponse::ParseFromArray(const void* raw, size_t size) {
-  unknown_fields_.clear();
-  bool packed_error = false;
-
-  ::protozero::ProtoDecoder dec(raw, size);
-  for (auto field = dec.ReadField(); field.valid(); field = dec.ReadField()) {
-    if (field.id() < _has_field_.size()) {
-      _has_field_.set(field.id());
-    }
-    switch (field.id()) {
-      default:
-        field.SerializeAndAppendTo(&unknown_fields_);
-        break;
-    }
-  }
-  return !packed_error && !dec.bytes_left();
-}
-
-std::string RegisterTraceWriterResponse::SerializeAsString() const {
-  ::protozero::HeapBuffered<::protozero::Message> msg;
-  Serialize(msg.get());
-  return msg.SerializeAsString();
-}
-
-std::vector<uint8_t> RegisterTraceWriterResponse::SerializeAsArray() const {
-  ::protozero::HeapBuffered<::protozero::Message> msg;
-  Serialize(msg.get());
-  return msg.SerializeAsArray();
-}
-
-void RegisterTraceWriterResponse::Serialize(::protozero::Message* msg) const {
-  msg->AppendRawProtoBytes(unknown_fields_.data(), unknown_fields_.size());
-}
-
-
-RegisterTraceWriterRequest::RegisterTraceWriterRequest() = default;
-RegisterTraceWriterRequest::~RegisterTraceWriterRequest() = default;
-RegisterTraceWriterRequest::RegisterTraceWriterRequest(const RegisterTraceWriterRequest&) = default;
-RegisterTraceWriterRequest& RegisterTraceWriterRequest::operator=(const RegisterTraceWriterRequest&) = default;
-RegisterTraceWriterRequest::RegisterTraceWriterRequest(RegisterTraceWriterRequest&&) noexcept = default;
-RegisterTraceWriterRequest& RegisterTraceWriterRequest::operator=(RegisterTraceWriterRequest&&) = default;
-
-bool RegisterTraceWriterRequest::operator==(const RegisterTraceWriterRequest& other) const {
-  return unknown_fields_ == other.unknown_fields_
-   && trace_writer_id_ == other.trace_writer_id_
-   && target_buffer_ == other.target_buffer_;
-}
-
-bool RegisterTraceWriterRequest::ParseFromArray(const void* raw, size_t size) {
-  unknown_fields_.clear();
-  bool packed_error = false;
-
-  ::protozero::ProtoDecoder dec(raw, size);
-  for (auto field = dec.ReadField(); field.valid(); field = dec.ReadField()) {
-    if (field.id() < _has_field_.size()) {
-      _has_field_.set(field.id());
-    }
-    switch (field.id()) {
-      case 1 /* trace_writer_id */:
-        field.get(&trace_writer_id_);
-        break;
-      case 2 /* target_buffer */:
-        field.get(&target_buffer_);
-        break;
-      default:
-        field.SerializeAndAppendTo(&unknown_fields_);
-        break;
-    }
-  }
-  return !packed_error && !dec.bytes_left();
-}
-
-std::string RegisterTraceWriterRequest::SerializeAsString() const {
-  ::protozero::HeapBuffered<::protozero::Message> msg;
-  Serialize(msg.get());
-  return msg.SerializeAsString();
-}
-
-std::vector<uint8_t> RegisterTraceWriterRequest::SerializeAsArray() const {
-  ::protozero::HeapBuffered<::protozero::Message> msg;
-  Serialize(msg.get());
-  return msg.SerializeAsArray();
-}
-
-void RegisterTraceWriterRequest::Serialize(::protozero::Message* msg) const {
-  // Field 1: trace_writer_id
-  if (_has_field_[1]) {
-    msg->AppendVarInt(1, trace_writer_id_);
-  }
-
-  // Field 2: target_buffer
-  if (_has_field_[2]) {
-    msg->AppendVarInt(2, target_buffer_);
-  }
-
-  msg->AppendRawProtoBytes(unknown_fields_.data(), unknown_fields_.size());
-}
-
-
-UnregisterDataSourceResponse::UnregisterDataSourceResponse() = default;
-UnregisterDataSourceResponse::~UnregisterDataSourceResponse() = default;
-UnregisterDataSourceResponse::UnregisterDataSourceResponse(const UnregisterDataSourceResponse&) = default;
-UnregisterDataSourceResponse& UnregisterDataSourceResponse::operator=(const UnregisterDataSourceResponse&) = default;
-UnregisterDataSourceResponse::UnregisterDataSourceResponse(UnregisterDataSourceResponse&&) noexcept = default;
-UnregisterDataSourceResponse& UnregisterDataSourceResponse::operator=(UnregisterDataSourceResponse&&) = default;
-
-bool UnregisterDataSourceResponse::operator==(const UnregisterDataSourceResponse& other) const {
-  return unknown_fields_ == other.unknown_fields_;
-}
-
-bool UnregisterDataSourceResponse::ParseFromArray(const void* raw, size_t size) {
-  unknown_fields_.clear();
-  bool packed_error = false;
-
-  ::protozero::ProtoDecoder dec(raw, size);
-  for (auto field = dec.ReadField(); field.valid(); field = dec.ReadField()) {
-    if (field.id() < _has_field_.size()) {
-      _has_field_.set(field.id());
-    }
-    switch (field.id()) {
-      default:
-        field.SerializeAndAppendTo(&unknown_fields_);
-        break;
-    }
-  }
-  return !packed_error && !dec.bytes_left();
-}
-
-std::string UnregisterDataSourceResponse::SerializeAsString() const {
-  ::protozero::HeapBuffered<::protozero::Message> msg;
-  Serialize(msg.get());
-  return msg.SerializeAsString();
-}
-
-std::vector<uint8_t> UnregisterDataSourceResponse::SerializeAsArray() const {
-  ::protozero::HeapBuffered<::protozero::Message> msg;
-  Serialize(msg.get());
-  return msg.SerializeAsArray();
-}
-
-void UnregisterDataSourceResponse::Serialize(::protozero::Message* msg) const {
-  msg->AppendRawProtoBytes(unknown_fields_.data(), unknown_fields_.size());
-}
-
-
-UnregisterDataSourceRequest::UnregisterDataSourceRequest() = default;
-UnregisterDataSourceRequest::~UnregisterDataSourceRequest() = default;
-UnregisterDataSourceRequest::UnregisterDataSourceRequest(const UnregisterDataSourceRequest&) = default;
-UnregisterDataSourceRequest& UnregisterDataSourceRequest::operator=(const UnregisterDataSourceRequest&) = default;
-UnregisterDataSourceRequest::UnregisterDataSourceRequest(UnregisterDataSourceRequest&&) noexcept = default;
-UnregisterDataSourceRequest& UnregisterDataSourceRequest::operator=(UnregisterDataSourceRequest&&) = default;
-
-bool UnregisterDataSourceRequest::operator==(const UnregisterDataSourceRequest& other) const {
-  return unknown_fields_ == other.unknown_fields_
-   && data_source_name_ == other.data_source_name_;
-}
-
-bool UnregisterDataSourceRequest::ParseFromArray(const void* raw, size_t size) {
-  unknown_fields_.clear();
-  bool packed_error = false;
-
-  ::protozero::ProtoDecoder dec(raw, size);
-  for (auto field = dec.ReadField(); field.valid(); field = dec.ReadField()) {
-    if (field.id() < _has_field_.size()) {
-      _has_field_.set(field.id());
-    }
-    switch (field.id()) {
-      case 1 /* data_source_name */:
-        field.get(&data_source_name_);
-        break;
-      default:
-        field.SerializeAndAppendTo(&unknown_fields_);
-        break;
-    }
-  }
-  return !packed_error && !dec.bytes_left();
-}
-
-std::string UnregisterDataSourceRequest::SerializeAsString() const {
-  ::protozero::HeapBuffered<::protozero::Message> msg;
-  Serialize(msg.get());
-  return msg.SerializeAsString();
-}
-
-std::vector<uint8_t> UnregisterDataSourceRequest::SerializeAsArray() const {
-  ::protozero::HeapBuffered<::protozero::Message> msg;
-  Serialize(msg.get());
-  return msg.SerializeAsArray();
-}
-
-void UnregisterDataSourceRequest::Serialize(::protozero::Message* msg) const {
-  // Field 1: data_source_name
-  if (_has_field_[1]) {
-    msg->AppendString(1, data_source_name_);
-  }
-
-  msg->AppendRawProtoBytes(unknown_fields_.data(), unknown_fields_.size());
-}
-
-
-RegisterDataSourceResponse::RegisterDataSourceResponse() = default;
-RegisterDataSourceResponse::~RegisterDataSourceResponse() = default;
-RegisterDataSourceResponse::RegisterDataSourceResponse(const RegisterDataSourceResponse&) = default;
-RegisterDataSourceResponse& RegisterDataSourceResponse::operator=(const RegisterDataSourceResponse&) = default;
-RegisterDataSourceResponse::RegisterDataSourceResponse(RegisterDataSourceResponse&&) noexcept = default;
-RegisterDataSourceResponse& RegisterDataSourceResponse::operator=(RegisterDataSourceResponse&&) = default;
-
-bool RegisterDataSourceResponse::operator==(const RegisterDataSourceResponse& other) const {
-  return unknown_fields_ == other.unknown_fields_
-   && error_ == other.error_;
-}
-
-bool RegisterDataSourceResponse::ParseFromArray(const void* raw, size_t size) {
-  unknown_fields_.clear();
-  bool packed_error = false;
-
-  ::protozero::ProtoDecoder dec(raw, size);
-  for (auto field = dec.ReadField(); field.valid(); field = dec.ReadField()) {
-    if (field.id() < _has_field_.size()) {
-      _has_field_.set(field.id());
-    }
-    switch (field.id()) {
-      case 1 /* error */:
-        field.get(&error_);
-        break;
-      default:
-        field.SerializeAndAppendTo(&unknown_fields_);
-        break;
-    }
-  }
-  return !packed_error && !dec.bytes_left();
-}
-
-std::string RegisterDataSourceResponse::SerializeAsString() const {
-  ::protozero::HeapBuffered<::protozero::Message> msg;
-  Serialize(msg.get());
-  return msg.SerializeAsString();
-}
-
-std::vector<uint8_t> RegisterDataSourceResponse::SerializeAsArray() const {
-  ::protozero::HeapBuffered<::protozero::Message> msg;
-  Serialize(msg.get());
-  return msg.SerializeAsArray();
-}
-
-void RegisterDataSourceResponse::Serialize(::protozero::Message* msg) const {
-  // Field 1: error
-  if (_has_field_[1]) {
-    msg->AppendString(1, error_);
-  }
-
-  msg->AppendRawProtoBytes(unknown_fields_.data(), unknown_fields_.size());
-}
-
-
-RegisterDataSourceRequest::RegisterDataSourceRequest() = default;
-RegisterDataSourceRequest::~RegisterDataSourceRequest() = default;
-RegisterDataSourceRequest::RegisterDataSourceRequest(const RegisterDataSourceRequest&) = default;
-RegisterDataSourceRequest& RegisterDataSourceRequest::operator=(const RegisterDataSourceRequest&) = default;
-RegisterDataSourceRequest::RegisterDataSourceRequest(RegisterDataSourceRequest&&) noexcept = default;
-RegisterDataSourceRequest& RegisterDataSourceRequest::operator=(RegisterDataSourceRequest&&) = default;
-
-bool RegisterDataSourceRequest::operator==(const RegisterDataSourceRequest& other) const {
-  return unknown_fields_ == other.unknown_fields_
-   && data_source_descriptor_ == other.data_source_descriptor_;
-}
-
-bool RegisterDataSourceRequest::ParseFromArray(const void* raw, size_t size) {
-  unknown_fields_.clear();
-  bool packed_error = false;
-
-  ::protozero::ProtoDecoder dec(raw, size);
-  for (auto field = dec.ReadField(); field.valid(); field = dec.ReadField()) {
-    if (field.id() < _has_field_.size()) {
-      _has_field_.set(field.id());
-    }
-    switch (field.id()) {
-      case 1 /* data_source_descriptor */:
-        (*data_source_descriptor_).ParseFromArray(field.data(), field.size());
-        break;
-      default:
-        field.SerializeAndAppendTo(&unknown_fields_);
-        break;
-    }
-  }
-  return !packed_error && !dec.bytes_left();
-}
-
-std::string RegisterDataSourceRequest::SerializeAsString() const {
-  ::protozero::HeapBuffered<::protozero::Message> msg;
-  Serialize(msg.get());
-  return msg.SerializeAsString();
-}
-
-std::vector<uint8_t> RegisterDataSourceRequest::SerializeAsArray() const {
-  ::protozero::HeapBuffered<::protozero::Message> msg;
-  Serialize(msg.get());
-  return msg.SerializeAsArray();
-}
-
-void RegisterDataSourceRequest::Serialize(::protozero::Message* msg) const {
-  // Field 1: data_source_descriptor
-  if (_has_field_[1]) {
-    (*data_source_descriptor_).Serialize(msg->BeginNestedMessage<::protozero::Message>(1));
-  }
-
-  msg->AppendRawProtoBytes(unknown_fields_.data(), unknown_fields_.size());
-}
-
-
-InitializeConnectionResponse::InitializeConnectionResponse() = default;
-InitializeConnectionResponse::~InitializeConnectionResponse() = default;
-InitializeConnectionResponse::InitializeConnectionResponse(const InitializeConnectionResponse&) = default;
-InitializeConnectionResponse& InitializeConnectionResponse::operator=(const InitializeConnectionResponse&) = default;
-InitializeConnectionResponse::InitializeConnectionResponse(InitializeConnectionResponse&&) noexcept = default;
-InitializeConnectionResponse& InitializeConnectionResponse::operator=(InitializeConnectionResponse&&) = default;
-
-bool InitializeConnectionResponse::operator==(const InitializeConnectionResponse& other) const {
-  return unknown_fields_ == other.unknown_fields_
-   && using_shmem_provided_by_producer_ == other.using_shmem_provided_by_producer_
-   && direct_smb_patching_supported_ == other.direct_smb_patching_supported_;
-}
-
-bool InitializeConnectionResponse::ParseFromArray(const void* raw, size_t size) {
-  unknown_fields_.clear();
-  bool packed_error = false;
-
-  ::protozero::ProtoDecoder dec(raw, size);
-  for (auto field = dec.ReadField(); field.valid(); field = dec.ReadField()) {
-    if (field.id() < _has_field_.size()) {
-      _has_field_.set(field.id());
-    }
-    switch (field.id()) {
-      case 1 /* using_shmem_provided_by_producer */:
-        field.get(&using_shmem_provided_by_producer_);
-        break;
-      case 2 /* direct_smb_patching_supported */:
-        field.get(&direct_smb_patching_supported_);
-        break;
-      default:
-        field.SerializeAndAppendTo(&unknown_fields_);
-        break;
-    }
-  }
-  return !packed_error && !dec.bytes_left();
-}
-
-std::string InitializeConnectionResponse::SerializeAsString() const {
-  ::protozero::HeapBuffered<::protozero::Message> msg;
-  Serialize(msg.get());
-  return msg.SerializeAsString();
-}
-
-std::vector<uint8_t> InitializeConnectionResponse::SerializeAsArray() const {
-  ::protozero::HeapBuffered<::protozero::Message> msg;
-  Serialize(msg.get());
-  return msg.SerializeAsArray();
-}
-
-void InitializeConnectionResponse::Serialize(::protozero::Message* msg) const {
-  // Field 1: using_shmem_provided_by_producer
-  if (_has_field_[1]) {
-    msg->AppendTinyVarInt(1, using_shmem_provided_by_producer_);
-  }
-
-  // Field 2: direct_smb_patching_supported
-  if (_has_field_[2]) {
-    msg->AppendTinyVarInt(2, direct_smb_patching_supported_);
-  }
-
-  msg->AppendRawProtoBytes(unknown_fields_.data(), unknown_fields_.size());
-}
-
-
-InitializeConnectionRequest::InitializeConnectionRequest() = default;
-InitializeConnectionRequest::~InitializeConnectionRequest() = default;
-InitializeConnectionRequest::InitializeConnectionRequest(const InitializeConnectionRequest&) = default;
-InitializeConnectionRequest& InitializeConnectionRequest::operator=(const InitializeConnectionRequest&) = default;
-InitializeConnectionRequest::InitializeConnectionRequest(InitializeConnectionRequest&&) noexcept = default;
-InitializeConnectionRequest& InitializeConnectionRequest::operator=(InitializeConnectionRequest&&) = default;
-
-bool InitializeConnectionRequest::operator==(const InitializeConnectionRequest& other) const {
-  return unknown_fields_ == other.unknown_fields_
-   && shared_memory_page_size_hint_bytes_ == other.shared_memory_page_size_hint_bytes_
-   && shared_memory_size_hint_bytes_ == other.shared_memory_size_hint_bytes_
-   && producer_name_ == other.producer_name_
-   && smb_scraping_mode_ == other.smb_scraping_mode_
-   && build_flags_ == other.build_flags_
-   && producer_provided_shmem_ == other.producer_provided_shmem_
-   && sdk_version_ == other.sdk_version_;
-}
-
-bool InitializeConnectionRequest::ParseFromArray(const void* raw, size_t size) {
-  unknown_fields_.clear();
-  bool packed_error = false;
-
-  ::protozero::ProtoDecoder dec(raw, size);
-  for (auto field = dec.ReadField(); field.valid(); field = dec.ReadField()) {
-    if (field.id() < _has_field_.size()) {
-      _has_field_.set(field.id());
-    }
-    switch (field.id()) {
-      case 1 /* shared_memory_page_size_hint_bytes */:
-        field.get(&shared_memory_page_size_hint_bytes_);
-        break;
-      case 2 /* shared_memory_size_hint_bytes */:
-        field.get(&shared_memory_size_hint_bytes_);
-        break;
-      case 3 /* producer_name */:
-        field.get(&producer_name_);
-        break;
-      case 4 /* smb_scraping_mode */:
-        field.get(&smb_scraping_mode_);
-        break;
-      case 5 /* build_flags */:
-        field.get(&build_flags_);
-        break;
-      case 6 /* producer_provided_shmem */:
-        field.get(&producer_provided_shmem_);
-        break;
-      case 8 /* sdk_version */:
-        field.get(&sdk_version_);
-        break;
-      default:
-        field.SerializeAndAppendTo(&unknown_fields_);
-        break;
-    }
-  }
-  return !packed_error && !dec.bytes_left();
-}
-
-std::string InitializeConnectionRequest::SerializeAsString() const {
-  ::protozero::HeapBuffered<::protozero::Message> msg;
-  Serialize(msg.get());
-  return msg.SerializeAsString();
-}
-
-std::vector<uint8_t> InitializeConnectionRequest::SerializeAsArray() const {
-  ::protozero::HeapBuffered<::protozero::Message> msg;
-  Serialize(msg.get());
-  return msg.SerializeAsArray();
-}
-
-void InitializeConnectionRequest::Serialize(::protozero::Message* msg) const {
-  // Field 1: shared_memory_page_size_hint_bytes
-  if (_has_field_[1]) {
-    msg->AppendVarInt(1, shared_memory_page_size_hint_bytes_);
-  }
-
-  // Field 2: shared_memory_size_hint_bytes
-  if (_has_field_[2]) {
-    msg->AppendVarInt(2, shared_memory_size_hint_bytes_);
-  }
-
-  // Field 3: producer_name
-  if (_has_field_[3]) {
-    msg->AppendString(3, producer_name_);
-  }
-
-  // Field 4: smb_scraping_mode
-  if (_has_field_[4]) {
-    msg->AppendVarInt(4, smb_scraping_mode_);
-  }
-
-  // Field 5: build_flags
-  if (_has_field_[5]) {
-    msg->AppendVarInt(5, build_flags_);
-  }
-
-  // Field 6: producer_provided_shmem
-  if (_has_field_[6]) {
-    msg->AppendTinyVarInt(6, producer_provided_shmem_);
-  }
-
-  // Field 8: sdk_version
-  if (_has_field_[8]) {
-    msg->AppendString(8, sdk_version_);
-  }
-
-  msg->AppendRawProtoBytes(unknown_fields_.data(), unknown_fields_.size());
-}
-
-}  // namespace perfetto
-}  // namespace protos
-}  // namespace gen
-#if defined(__GNUC__) || defined(__clang__)
-#pragma GCC diagnostic pop
-#endif
-// gen_amalgamated begin source: gen/protos/perfetto/ipc/wire_protocol.gen.cc
-// gen_amalgamated begin header: gen/protos/perfetto/ipc/wire_protocol.gen.h
-// DO NOT EDIT. Autogenerated by Perfetto cppgen_plugin
-#ifndef PERFETTO_PROTOS_PROTOS_PERFETTO_IPC_WIRE_PROTOCOL_PROTO_CPP_H_
-#define PERFETTO_PROTOS_PROTOS_PERFETTO_IPC_WIRE_PROTOCOL_PROTO_CPP_H_
-
-#include <stdint.h>
-#include <bitset>
-#include <vector>
-#include <string>
-#include <type_traits>
-
-// gen_amalgamated expanded: #include "perfetto/protozero/cpp_message_obj.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/copyable_ptr.h"
-// gen_amalgamated expanded: #include "perfetto/base/export.h"
-
-namespace perfetto {
-namespace protos {
-namespace gen {
-class IPCFrame;
-class IPCFrame_RequestError;
-class IPCFrame_InvokeMethodReply;
-class IPCFrame_InvokeMethod;
-class IPCFrame_BindServiceReply;
-class IPCFrame_BindServiceReply_MethodInfo;
-class IPCFrame_BindService;
-}  // namespace perfetto
-}  // namespace protos
-}  // namespace gen
-
-namespace protozero {
-class Message;
-}  // namespace protozero
-
-namespace perfetto {
-namespace protos {
-namespace gen {
-
-class PERFETTO_EXPORT IPCFrame : public ::protozero::CppMessageObj {
- public:
-  using BindService = IPCFrame_BindService;
-  using BindServiceReply = IPCFrame_BindServiceReply;
-  using InvokeMethod = IPCFrame_InvokeMethod;
-  using InvokeMethodReply = IPCFrame_InvokeMethodReply;
-  using RequestError = IPCFrame_RequestError;
-  enum FieldNumbers {
-    kRequestIdFieldNumber = 2,
-    kMsgBindServiceFieldNumber = 3,
-    kMsgBindServiceReplyFieldNumber = 4,
-    kMsgInvokeMethodFieldNumber = 5,
-    kMsgInvokeMethodReplyFieldNumber = 6,
-    kMsgRequestErrorFieldNumber = 7,
-    kDataForTestingFieldNumber = 1,
-  };
-
-  IPCFrame();
-  ~IPCFrame() override;
-  IPCFrame(IPCFrame&&) noexcept;
-  IPCFrame& operator=(IPCFrame&&);
-  IPCFrame(const IPCFrame&);
-  IPCFrame& operator=(const IPCFrame&);
-  bool operator==(const IPCFrame&) const;
-  bool operator!=(const IPCFrame& other) const { return !(*this == other); }
-
-  bool ParseFromArray(const void*, size_t) override;
-  std::string SerializeAsString() const override;
-  std::vector<uint8_t> SerializeAsArray() const override;
-  void Serialize(::protozero::Message*) const;
-
-  bool has_request_id() const { return _has_field_[2]; }
-  uint64_t request_id() const { return request_id_; }
-  void set_request_id(uint64_t value) { request_id_ = value; _has_field_.set(2); }
-
-  bool has_msg_bind_service() const { return _has_field_[3]; }
-  const IPCFrame_BindService& msg_bind_service() const { return *msg_bind_service_; }
-  IPCFrame_BindService* mutable_msg_bind_service() { _has_field_.set(3); return msg_bind_service_.get(); }
-
-  bool has_msg_bind_service_reply() const { return _has_field_[4]; }
-  const IPCFrame_BindServiceReply& msg_bind_service_reply() const { return *msg_bind_service_reply_; }
-  IPCFrame_BindServiceReply* mutable_msg_bind_service_reply() { _has_field_.set(4); return msg_bind_service_reply_.get(); }
-
-  bool has_msg_invoke_method() const { return _has_field_[5]; }
-  const IPCFrame_InvokeMethod& msg_invoke_method() const { return *msg_invoke_method_; }
-  IPCFrame_InvokeMethod* mutable_msg_invoke_method() { _has_field_.set(5); return msg_invoke_method_.get(); }
-
-  bool has_msg_invoke_method_reply() const { return _has_field_[6]; }
-  const IPCFrame_InvokeMethodReply& msg_invoke_method_reply() const { return *msg_invoke_method_reply_; }
-  IPCFrame_InvokeMethodReply* mutable_msg_invoke_method_reply() { _has_field_.set(6); return msg_invoke_method_reply_.get(); }
-
-  bool has_msg_request_error() const { return _has_field_[7]; }
-  const IPCFrame_RequestError& msg_request_error() const { return *msg_request_error_; }
-  IPCFrame_RequestError* mutable_msg_request_error() { _has_field_.set(7); return msg_request_error_.get(); }
-
-  const std::vector<std::string>& data_for_testing() const { return data_for_testing_; }
-  std::vector<std::string>* mutable_data_for_testing() { return &data_for_testing_; }
-  int data_for_testing_size() const { return static_cast<int>(data_for_testing_.size()); }
-  void clear_data_for_testing() { data_for_testing_.clear(); }
-  void add_data_for_testing(std::string value) { data_for_testing_.emplace_back(value); }
-  std::string* add_data_for_testing() { data_for_testing_.emplace_back(); return &data_for_testing_.back(); }
-
- private:
-  uint64_t request_id_{};
-  ::protozero::CopyablePtr<IPCFrame_BindService> msg_bind_service_;
-  ::protozero::CopyablePtr<IPCFrame_BindServiceReply> msg_bind_service_reply_;
-  ::protozero::CopyablePtr<IPCFrame_InvokeMethod> msg_invoke_method_;
-  ::protozero::CopyablePtr<IPCFrame_InvokeMethodReply> msg_invoke_method_reply_;
-  ::protozero::CopyablePtr<IPCFrame_RequestError> msg_request_error_;
-  std::vector<std::string> data_for_testing_;
-
-  // Allows to preserve unknown protobuf fields for compatibility
-  // with future versions of .proto files.
-  std::string unknown_fields_;
-
-  std::bitset<8> _has_field_{};
-};
-
-
-class PERFETTO_EXPORT IPCFrame_RequestError : public ::protozero::CppMessageObj {
- public:
-  enum FieldNumbers {
-    kErrorFieldNumber = 1,
-  };
-
-  IPCFrame_RequestError();
-  ~IPCFrame_RequestError() override;
-  IPCFrame_RequestError(IPCFrame_RequestError&&) noexcept;
-  IPCFrame_RequestError& operator=(IPCFrame_RequestError&&);
-  IPCFrame_RequestError(const IPCFrame_RequestError&);
-  IPCFrame_RequestError& operator=(const IPCFrame_RequestError&);
-  bool operator==(const IPCFrame_RequestError&) const;
-  bool operator!=(const IPCFrame_RequestError& other) const { return !(*this == other); }
-
-  bool ParseFromArray(const void*, size_t) override;
-  std::string SerializeAsString() const override;
-  std::vector<uint8_t> SerializeAsArray() const override;
-  void Serialize(::protozero::Message*) const;
-
-  bool has_error() const { return _has_field_[1]; }
-  const std::string& error() const { return error_; }
-  void set_error(const std::string& value) { error_ = value; _has_field_.set(1); }
-
- private:
-  std::string error_{};
-
-  // Allows to preserve unknown protobuf fields for compatibility
-  // with future versions of .proto files.
-  std::string unknown_fields_;
-
-  std::bitset<2> _has_field_{};
-};
-
-
-class PERFETTO_EXPORT IPCFrame_InvokeMethodReply : public ::protozero::CppMessageObj {
- public:
-  enum FieldNumbers {
-    kSuccessFieldNumber = 1,
-    kHasMoreFieldNumber = 2,
-    kReplyProtoFieldNumber = 3,
-  };
-
-  IPCFrame_InvokeMethodReply();
-  ~IPCFrame_InvokeMethodReply() override;
-  IPCFrame_InvokeMethodReply(IPCFrame_InvokeMethodReply&&) noexcept;
-  IPCFrame_InvokeMethodReply& operator=(IPCFrame_InvokeMethodReply&&);
-  IPCFrame_InvokeMethodReply(const IPCFrame_InvokeMethodReply&);
-  IPCFrame_InvokeMethodReply& operator=(const IPCFrame_InvokeMethodReply&);
-  bool operator==(const IPCFrame_InvokeMethodReply&) const;
-  bool operator!=(const IPCFrame_InvokeMethodReply& other) const { return !(*this == other); }
-
-  bool ParseFromArray(const void*, size_t) override;
-  std::string SerializeAsString() const override;
-  std::vector<uint8_t> SerializeAsArray() const override;
-  void Serialize(::protozero::Message*) const;
-
-  bool has_success() const { return _has_field_[1]; }
-  bool success() const { return success_; }
-  void set_success(bool value) { success_ = value; _has_field_.set(1); }
-
-  bool has_has_more() const { return _has_field_[2]; }
-  bool has_more() const { return has_more_; }
-  void set_has_more(bool value) { has_more_ = value; _has_field_.set(2); }
-
-  bool has_reply_proto() const { return _has_field_[3]; }
-  const std::string& reply_proto() const { return reply_proto_; }
-  void set_reply_proto(const std::string& value) { reply_proto_ = value; _has_field_.set(3); }
-  void set_reply_proto(const void* p, size_t s) { reply_proto_.assign(reinterpret_cast<const char*>(p), s); _has_field_.set(3); }
-
- private:
-  bool success_{};
-  bool has_more_{};
-  std::string reply_proto_{};
-
-  // Allows to preserve unknown protobuf fields for compatibility
-  // with future versions of .proto files.
-  std::string unknown_fields_;
-
-  std::bitset<4> _has_field_{};
-};
-
-
-class PERFETTO_EXPORT IPCFrame_InvokeMethod : public ::protozero::CppMessageObj {
- public:
-  enum FieldNumbers {
-    kServiceIdFieldNumber = 1,
-    kMethodIdFieldNumber = 2,
-    kArgsProtoFieldNumber = 3,
-    kDropReplyFieldNumber = 4,
-  };
-
-  IPCFrame_InvokeMethod();
-  ~IPCFrame_InvokeMethod() override;
-  IPCFrame_InvokeMethod(IPCFrame_InvokeMethod&&) noexcept;
-  IPCFrame_InvokeMethod& operator=(IPCFrame_InvokeMethod&&);
-  IPCFrame_InvokeMethod(const IPCFrame_InvokeMethod&);
-  IPCFrame_InvokeMethod& operator=(const IPCFrame_InvokeMethod&);
-  bool operator==(const IPCFrame_InvokeMethod&) const;
-  bool operator!=(const IPCFrame_InvokeMethod& other) const { return !(*this == other); }
-
-  bool ParseFromArray(const void*, size_t) override;
-  std::string SerializeAsString() const override;
-  std::vector<uint8_t> SerializeAsArray() const override;
-  void Serialize(::protozero::Message*) const;
-
-  bool has_service_id() const { return _has_field_[1]; }
-  uint32_t service_id() const { return service_id_; }
-  void set_service_id(uint32_t value) { service_id_ = value; _has_field_.set(1); }
-
-  bool has_method_id() const { return _has_field_[2]; }
-  uint32_t method_id() const { return method_id_; }
-  void set_method_id(uint32_t value) { method_id_ = value; _has_field_.set(2); }
-
-  bool has_args_proto() const { return _has_field_[3]; }
-  const std::string& args_proto() const { return args_proto_; }
-  void set_args_proto(const std::string& value) { args_proto_ = value; _has_field_.set(3); }
-  void set_args_proto(const void* p, size_t s) { args_proto_.assign(reinterpret_cast<const char*>(p), s); _has_field_.set(3); }
-
-  bool has_drop_reply() const { return _has_field_[4]; }
-  bool drop_reply() const { return drop_reply_; }
-  void set_drop_reply(bool value) { drop_reply_ = value; _has_field_.set(4); }
-
- private:
-  uint32_t service_id_{};
-  uint32_t method_id_{};
-  std::string args_proto_{};
-  bool drop_reply_{};
-
-  // Allows to preserve unknown protobuf fields for compatibility
-  // with future versions of .proto files.
-  std::string unknown_fields_;
-
-  std::bitset<5> _has_field_{};
-};
-
-
-class PERFETTO_EXPORT IPCFrame_BindServiceReply : public ::protozero::CppMessageObj {
- public:
-  using MethodInfo = IPCFrame_BindServiceReply_MethodInfo;
-  enum FieldNumbers {
-    kSuccessFieldNumber = 1,
-    kServiceIdFieldNumber = 2,
-    kMethodsFieldNumber = 3,
-  };
-
-  IPCFrame_BindServiceReply();
-  ~IPCFrame_BindServiceReply() override;
-  IPCFrame_BindServiceReply(IPCFrame_BindServiceReply&&) noexcept;
-  IPCFrame_BindServiceReply& operator=(IPCFrame_BindServiceReply&&);
-  IPCFrame_BindServiceReply(const IPCFrame_BindServiceReply&);
-  IPCFrame_BindServiceReply& operator=(const IPCFrame_BindServiceReply&);
-  bool operator==(const IPCFrame_BindServiceReply&) const;
-  bool operator!=(const IPCFrame_BindServiceReply& other) const { return !(*this == other); }
-
-  bool ParseFromArray(const void*, size_t) override;
-  std::string SerializeAsString() const override;
-  std::vector<uint8_t> SerializeAsArray() const override;
-  void Serialize(::protozero::Message*) const;
-
-  bool has_success() const { return _has_field_[1]; }
-  bool success() const { return success_; }
-  void set_success(bool value) { success_ = value; _has_field_.set(1); }
-
-  bool has_service_id() const { return _has_field_[2]; }
-  uint32_t service_id() const { return service_id_; }
-  void set_service_id(uint32_t value) { service_id_ = value; _has_field_.set(2); }
-
-  const std::vector<IPCFrame_BindServiceReply_MethodInfo>& methods() const { return methods_; }
-  std::vector<IPCFrame_BindServiceReply_MethodInfo>* mutable_methods() { return &methods_; }
-  int methods_size() const;
-  void clear_methods();
-  IPCFrame_BindServiceReply_MethodInfo* add_methods();
-
- private:
-  bool success_{};
-  uint32_t service_id_{};
-  std::vector<IPCFrame_BindServiceReply_MethodInfo> methods_;
-
-  // Allows to preserve unknown protobuf fields for compatibility
-  // with future versions of .proto files.
-  std::string unknown_fields_;
-
-  std::bitset<4> _has_field_{};
-};
-
-
-class PERFETTO_EXPORT IPCFrame_BindServiceReply_MethodInfo : public ::protozero::CppMessageObj {
- public:
-  enum FieldNumbers {
-    kIdFieldNumber = 1,
-    kNameFieldNumber = 2,
-  };
-
-  IPCFrame_BindServiceReply_MethodInfo();
-  ~IPCFrame_BindServiceReply_MethodInfo() override;
-  IPCFrame_BindServiceReply_MethodInfo(IPCFrame_BindServiceReply_MethodInfo&&) noexcept;
-  IPCFrame_BindServiceReply_MethodInfo& operator=(IPCFrame_BindServiceReply_MethodInfo&&);
-  IPCFrame_BindServiceReply_MethodInfo(const IPCFrame_BindServiceReply_MethodInfo&);
-  IPCFrame_BindServiceReply_MethodInfo& operator=(const IPCFrame_BindServiceReply_MethodInfo&);
-  bool operator==(const IPCFrame_BindServiceReply_MethodInfo&) const;
-  bool operator!=(const IPCFrame_BindServiceReply_MethodInfo& other) const { return !(*this == other); }
-
-  bool ParseFromArray(const void*, size_t) override;
-  std::string SerializeAsString() const override;
-  std::vector<uint8_t> SerializeAsArray() const override;
-  void Serialize(::protozero::Message*) const;
-
-  bool has_id() const { return _has_field_[1]; }
-  uint32_t id() const { return id_; }
-  void set_id(uint32_t value) { id_ = value; _has_field_.set(1); }
-
-  bool has_name() const { return _has_field_[2]; }
-  const std::string& name() const { return name_; }
-  void set_name(const std::string& value) { name_ = value; _has_field_.set(2); }
-
- private:
-  uint32_t id_{};
-  std::string name_{};
-
-  // Allows to preserve unknown protobuf fields for compatibility
-  // with future versions of .proto files.
-  std::string unknown_fields_;
-
-  std::bitset<3> _has_field_{};
-};
-
-
-class PERFETTO_EXPORT IPCFrame_BindService : public ::protozero::CppMessageObj {
- public:
-  enum FieldNumbers {
-    kServiceNameFieldNumber = 1,
-  };
-
-  IPCFrame_BindService();
-  ~IPCFrame_BindService() override;
-  IPCFrame_BindService(IPCFrame_BindService&&) noexcept;
-  IPCFrame_BindService& operator=(IPCFrame_BindService&&);
-  IPCFrame_BindService(const IPCFrame_BindService&);
-  IPCFrame_BindService& operator=(const IPCFrame_BindService&);
-  bool operator==(const IPCFrame_BindService&) const;
-  bool operator!=(const IPCFrame_BindService& other) const { return !(*this == other); }
-
-  bool ParseFromArray(const void*, size_t) override;
-  std::string SerializeAsString() const override;
-  std::vector<uint8_t> SerializeAsArray() const override;
-  void Serialize(::protozero::Message*) const;
-
-  bool has_service_name() const { return _has_field_[1]; }
-  const std::string& service_name() const { return service_name_; }
-  void set_service_name(const std::string& value) { service_name_ = value; _has_field_.set(1); }
-
- private:
-  std::string service_name_{};
-
-  // Allows to preserve unknown protobuf fields for compatibility
-  // with future versions of .proto files.
-  std::string unknown_fields_;
-
-  std::bitset<2> _has_field_{};
-};
-
-}  // namespace perfetto
-}  // namespace protos
-}  // namespace gen
-
-#endif  // PERFETTO_PROTOS_PROTOS_PERFETTO_IPC_WIRE_PROTOCOL_PROTO_CPP_H_
-// gen_amalgamated expanded: #include "perfetto/protozero/message.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/packed_repeated_fields.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/proto_decoder.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/scattered_heap_buffer.h"
-// DO NOT EDIT. Autogenerated by Perfetto cppgen_plugin
-#if defined(__GNUC__) || defined(__clang__)
-#pragma GCC diagnostic push
-#pragma GCC diagnostic ignored "-Wfloat-equal"
-#endif
-// gen_amalgamated expanded: #include "protos/perfetto/ipc/wire_protocol.gen.h"
-
-namespace perfetto {
-namespace protos {
-namespace gen {
-
-IPCFrame::IPCFrame() = default;
-IPCFrame::~IPCFrame() = default;
-IPCFrame::IPCFrame(const IPCFrame&) = default;
-IPCFrame& IPCFrame::operator=(const IPCFrame&) = default;
-IPCFrame::IPCFrame(IPCFrame&&) noexcept = default;
-IPCFrame& IPCFrame::operator=(IPCFrame&&) = default;
-
-bool IPCFrame::operator==(const IPCFrame& other) const {
-  return unknown_fields_ == other.unknown_fields_
-   && request_id_ == other.request_id_
-   && msg_bind_service_ == other.msg_bind_service_
-   && msg_bind_service_reply_ == other.msg_bind_service_reply_
-   && msg_invoke_method_ == other.msg_invoke_method_
-   && msg_invoke_method_reply_ == other.msg_invoke_method_reply_
-   && msg_request_error_ == other.msg_request_error_
-   && data_for_testing_ == other.data_for_testing_;
-}
-
-bool IPCFrame::ParseFromArray(const void* raw, size_t size) {
-  data_for_testing_.clear();
-  unknown_fields_.clear();
-  bool packed_error = false;
-
-  ::protozero::ProtoDecoder dec(raw, size);
-  for (auto field = dec.ReadField(); field.valid(); field = dec.ReadField()) {
-    if (field.id() < _has_field_.size()) {
-      _has_field_.set(field.id());
-    }
-    switch (field.id()) {
-      case 2 /* request_id */:
-        field.get(&request_id_);
-        break;
-      case 3 /* msg_bind_service */:
-        (*msg_bind_service_).ParseFromArray(field.data(), field.size());
-        break;
-      case 4 /* msg_bind_service_reply */:
-        (*msg_bind_service_reply_).ParseFromArray(field.data(), field.size());
-        break;
-      case 5 /* msg_invoke_method */:
-        (*msg_invoke_method_).ParseFromArray(field.data(), field.size());
-        break;
-      case 6 /* msg_invoke_method_reply */:
-        (*msg_invoke_method_reply_).ParseFromArray(field.data(), field.size());
-        break;
-      case 7 /* msg_request_error */:
-        (*msg_request_error_).ParseFromArray(field.data(), field.size());
-        break;
-      case 1 /* data_for_testing */:
-        data_for_testing_.emplace_back();
-        field.get(&data_for_testing_.back());
-        break;
-      default:
-        field.SerializeAndAppendTo(&unknown_fields_);
-        break;
-    }
-  }
-  return !packed_error && !dec.bytes_left();
-}
-
-std::string IPCFrame::SerializeAsString() const {
-  ::protozero::HeapBuffered<::protozero::Message> msg;
-  Serialize(msg.get());
-  return msg.SerializeAsString();
-}
-
-std::vector<uint8_t> IPCFrame::SerializeAsArray() const {
-  ::protozero::HeapBuffered<::protozero::Message> msg;
-  Serialize(msg.get());
-  return msg.SerializeAsArray();
-}
-
-void IPCFrame::Serialize(::protozero::Message* msg) const {
-  // Field 2: request_id
-  if (_has_field_[2]) {
-    msg->AppendVarInt(2, request_id_);
-  }
-
-  // Field 3: msg_bind_service
-  if (_has_field_[3]) {
-    (*msg_bind_service_).Serialize(msg->BeginNestedMessage<::protozero::Message>(3));
-  }
-
-  // Field 4: msg_bind_service_reply
-  if (_has_field_[4]) {
-    (*msg_bind_service_reply_).Serialize(msg->BeginNestedMessage<::protozero::Message>(4));
-  }
-
-  // Field 5: msg_invoke_method
-  if (_has_field_[5]) {
-    (*msg_invoke_method_).Serialize(msg->BeginNestedMessage<::protozero::Message>(5));
-  }
-
-  // Field 6: msg_invoke_method_reply
-  if (_has_field_[6]) {
-    (*msg_invoke_method_reply_).Serialize(msg->BeginNestedMessage<::protozero::Message>(6));
-  }
-
-  // Field 7: msg_request_error
-  if (_has_field_[7]) {
-    (*msg_request_error_).Serialize(msg->BeginNestedMessage<::protozero::Message>(7));
-  }
-
-  // Field 1: data_for_testing
-  for (auto& it : data_for_testing_) {
-    msg->AppendString(1, it);
-  }
-
-  msg->AppendRawProtoBytes(unknown_fields_.data(), unknown_fields_.size());
-}
-
-
-IPCFrame_RequestError::IPCFrame_RequestError() = default;
-IPCFrame_RequestError::~IPCFrame_RequestError() = default;
-IPCFrame_RequestError::IPCFrame_RequestError(const IPCFrame_RequestError&) = default;
-IPCFrame_RequestError& IPCFrame_RequestError::operator=(const IPCFrame_RequestError&) = default;
-IPCFrame_RequestError::IPCFrame_RequestError(IPCFrame_RequestError&&) noexcept = default;
-IPCFrame_RequestError& IPCFrame_RequestError::operator=(IPCFrame_RequestError&&) = default;
-
-bool IPCFrame_RequestError::operator==(const IPCFrame_RequestError& other) const {
-  return unknown_fields_ == other.unknown_fields_
-   && error_ == other.error_;
-}
-
-bool IPCFrame_RequestError::ParseFromArray(const void* raw, size_t size) {
-  unknown_fields_.clear();
-  bool packed_error = false;
-
-  ::protozero::ProtoDecoder dec(raw, size);
-  for (auto field = dec.ReadField(); field.valid(); field = dec.ReadField()) {
-    if (field.id() < _has_field_.size()) {
-      _has_field_.set(field.id());
-    }
-    switch (field.id()) {
-      case 1 /* error */:
-        field.get(&error_);
-        break;
-      default:
-        field.SerializeAndAppendTo(&unknown_fields_);
-        break;
-    }
-  }
-  return !packed_error && !dec.bytes_left();
-}
-
-std::string IPCFrame_RequestError::SerializeAsString() const {
-  ::protozero::HeapBuffered<::protozero::Message> msg;
-  Serialize(msg.get());
-  return msg.SerializeAsString();
-}
-
-std::vector<uint8_t> IPCFrame_RequestError::SerializeAsArray() const {
-  ::protozero::HeapBuffered<::protozero::Message> msg;
-  Serialize(msg.get());
-  return msg.SerializeAsArray();
-}
-
-void IPCFrame_RequestError::Serialize(::protozero::Message* msg) const {
-  // Field 1: error
-  if (_has_field_[1]) {
-    msg->AppendString(1, error_);
-  }
-
-  msg->AppendRawProtoBytes(unknown_fields_.data(), unknown_fields_.size());
-}
-
-
-IPCFrame_InvokeMethodReply::IPCFrame_InvokeMethodReply() = default;
-IPCFrame_InvokeMethodReply::~IPCFrame_InvokeMethodReply() = default;
-IPCFrame_InvokeMethodReply::IPCFrame_InvokeMethodReply(const IPCFrame_InvokeMethodReply&) = default;
-IPCFrame_InvokeMethodReply& IPCFrame_InvokeMethodReply::operator=(const IPCFrame_InvokeMethodReply&) = default;
-IPCFrame_InvokeMethodReply::IPCFrame_InvokeMethodReply(IPCFrame_InvokeMethodReply&&) noexcept = default;
-IPCFrame_InvokeMethodReply& IPCFrame_InvokeMethodReply::operator=(IPCFrame_InvokeMethodReply&&) = default;
-
-bool IPCFrame_InvokeMethodReply::operator==(const IPCFrame_InvokeMethodReply& other) const {
-  return unknown_fields_ == other.unknown_fields_
-   && success_ == other.success_
-   && has_more_ == other.has_more_
-   && reply_proto_ == other.reply_proto_;
-}
-
-bool IPCFrame_InvokeMethodReply::ParseFromArray(const void* raw, size_t size) {
-  unknown_fields_.clear();
-  bool packed_error = false;
-
-  ::protozero::ProtoDecoder dec(raw, size);
-  for (auto field = dec.ReadField(); field.valid(); field = dec.ReadField()) {
-    if (field.id() < _has_field_.size()) {
-      _has_field_.set(field.id());
-    }
-    switch (field.id()) {
-      case 1 /* success */:
-        field.get(&success_);
-        break;
-      case 2 /* has_more */:
-        field.get(&has_more_);
-        break;
-      case 3 /* reply_proto */:
-        field.get(&reply_proto_);
-        break;
-      default:
-        field.SerializeAndAppendTo(&unknown_fields_);
-        break;
-    }
-  }
-  return !packed_error && !dec.bytes_left();
-}
-
-std::string IPCFrame_InvokeMethodReply::SerializeAsString() const {
-  ::protozero::HeapBuffered<::protozero::Message> msg;
-  Serialize(msg.get());
-  return msg.SerializeAsString();
-}
-
-std::vector<uint8_t> IPCFrame_InvokeMethodReply::SerializeAsArray() const {
-  ::protozero::HeapBuffered<::protozero::Message> msg;
-  Serialize(msg.get());
-  return msg.SerializeAsArray();
-}
-
-void IPCFrame_InvokeMethodReply::Serialize(::protozero::Message* msg) const {
-  // Field 1: success
-  if (_has_field_[1]) {
-    msg->AppendTinyVarInt(1, success_);
-  }
-
-  // Field 2: has_more
-  if (_has_field_[2]) {
-    msg->AppendTinyVarInt(2, has_more_);
-  }
-
-  // Field 3: reply_proto
-  if (_has_field_[3]) {
-    msg->AppendString(3, reply_proto_);
-  }
-
-  msg->AppendRawProtoBytes(unknown_fields_.data(), unknown_fields_.size());
-}
-
-
-IPCFrame_InvokeMethod::IPCFrame_InvokeMethod() = default;
-IPCFrame_InvokeMethod::~IPCFrame_InvokeMethod() = default;
-IPCFrame_InvokeMethod::IPCFrame_InvokeMethod(const IPCFrame_InvokeMethod&) = default;
-IPCFrame_InvokeMethod& IPCFrame_InvokeMethod::operator=(const IPCFrame_InvokeMethod&) = default;
-IPCFrame_InvokeMethod::IPCFrame_InvokeMethod(IPCFrame_InvokeMethod&&) noexcept = default;
-IPCFrame_InvokeMethod& IPCFrame_InvokeMethod::operator=(IPCFrame_InvokeMethod&&) = default;
-
-bool IPCFrame_InvokeMethod::operator==(const IPCFrame_InvokeMethod& other) const {
-  return unknown_fields_ == other.unknown_fields_
-   && service_id_ == other.service_id_
-   && method_id_ == other.method_id_
-   && args_proto_ == other.args_proto_
-   && drop_reply_ == other.drop_reply_;
-}
-
-bool IPCFrame_InvokeMethod::ParseFromArray(const void* raw, size_t size) {
-  unknown_fields_.clear();
-  bool packed_error = false;
-
-  ::protozero::ProtoDecoder dec(raw, size);
-  for (auto field = dec.ReadField(); field.valid(); field = dec.ReadField()) {
-    if (field.id() < _has_field_.size()) {
-      _has_field_.set(field.id());
-    }
-    switch (field.id()) {
-      case 1 /* service_id */:
-        field.get(&service_id_);
-        break;
-      case 2 /* method_id */:
-        field.get(&method_id_);
-        break;
-      case 3 /* args_proto */:
-        field.get(&args_proto_);
-        break;
-      case 4 /* drop_reply */:
-        field.get(&drop_reply_);
-        break;
-      default:
-        field.SerializeAndAppendTo(&unknown_fields_);
-        break;
-    }
-  }
-  return !packed_error && !dec.bytes_left();
-}
-
-std::string IPCFrame_InvokeMethod::SerializeAsString() const {
-  ::protozero::HeapBuffered<::protozero::Message> msg;
-  Serialize(msg.get());
-  return msg.SerializeAsString();
-}
-
-std::vector<uint8_t> IPCFrame_InvokeMethod::SerializeAsArray() const {
-  ::protozero::HeapBuffered<::protozero::Message> msg;
-  Serialize(msg.get());
-  return msg.SerializeAsArray();
-}
-
-void IPCFrame_InvokeMethod::Serialize(::protozero::Message* msg) const {
-  // Field 1: service_id
-  if (_has_field_[1]) {
-    msg->AppendVarInt(1, service_id_);
-  }
-
-  // Field 2: method_id
-  if (_has_field_[2]) {
-    msg->AppendVarInt(2, method_id_);
-  }
-
-  // Field 3: args_proto
-  if (_has_field_[3]) {
-    msg->AppendString(3, args_proto_);
-  }
-
-  // Field 4: drop_reply
-  if (_has_field_[4]) {
-    msg->AppendTinyVarInt(4, drop_reply_);
-  }
-
-  msg->AppendRawProtoBytes(unknown_fields_.data(), unknown_fields_.size());
-}
-
-
-IPCFrame_BindServiceReply::IPCFrame_BindServiceReply() = default;
-IPCFrame_BindServiceReply::~IPCFrame_BindServiceReply() = default;
-IPCFrame_BindServiceReply::IPCFrame_BindServiceReply(const IPCFrame_BindServiceReply&) = default;
-IPCFrame_BindServiceReply& IPCFrame_BindServiceReply::operator=(const IPCFrame_BindServiceReply&) = default;
-IPCFrame_BindServiceReply::IPCFrame_BindServiceReply(IPCFrame_BindServiceReply&&) noexcept = default;
-IPCFrame_BindServiceReply& IPCFrame_BindServiceReply::operator=(IPCFrame_BindServiceReply&&) = default;
-
-bool IPCFrame_BindServiceReply::operator==(const IPCFrame_BindServiceReply& other) const {
-  return unknown_fields_ == other.unknown_fields_
-   && success_ == other.success_
-   && service_id_ == other.service_id_
-   && methods_ == other.methods_;
-}
-
-int IPCFrame_BindServiceReply::methods_size() const { return static_cast<int>(methods_.size()); }
-void IPCFrame_BindServiceReply::clear_methods() { methods_.clear(); }
-IPCFrame_BindServiceReply_MethodInfo* IPCFrame_BindServiceReply::add_methods() { methods_.emplace_back(); return &methods_.back(); }
-bool IPCFrame_BindServiceReply::ParseFromArray(const void* raw, size_t size) {
-  methods_.clear();
-  unknown_fields_.clear();
-  bool packed_error = false;
-
-  ::protozero::ProtoDecoder dec(raw, size);
-  for (auto field = dec.ReadField(); field.valid(); field = dec.ReadField()) {
-    if (field.id() < _has_field_.size()) {
-      _has_field_.set(field.id());
-    }
-    switch (field.id()) {
-      case 1 /* success */:
-        field.get(&success_);
-        break;
-      case 2 /* service_id */:
-        field.get(&service_id_);
-        break;
-      case 3 /* methods */:
-        methods_.emplace_back();
-        methods_.back().ParseFromArray(field.data(), field.size());
-        break;
-      default:
-        field.SerializeAndAppendTo(&unknown_fields_);
-        break;
-    }
-  }
-  return !packed_error && !dec.bytes_left();
-}
-
-std::string IPCFrame_BindServiceReply::SerializeAsString() const {
-  ::protozero::HeapBuffered<::protozero::Message> msg;
-  Serialize(msg.get());
-  return msg.SerializeAsString();
-}
-
-std::vector<uint8_t> IPCFrame_BindServiceReply::SerializeAsArray() const {
-  ::protozero::HeapBuffered<::protozero::Message> msg;
-  Serialize(msg.get());
-  return msg.SerializeAsArray();
-}
-
-void IPCFrame_BindServiceReply::Serialize(::protozero::Message* msg) const {
-  // Field 1: success
-  if (_has_field_[1]) {
-    msg->AppendTinyVarInt(1, success_);
-  }
-
-  // Field 2: service_id
-  if (_has_field_[2]) {
-    msg->AppendVarInt(2, service_id_);
-  }
-
-  // Field 3: methods
-  for (auto& it : methods_) {
-    it.Serialize(msg->BeginNestedMessage<::protozero::Message>(3));
-  }
-
-  msg->AppendRawProtoBytes(unknown_fields_.data(), unknown_fields_.size());
-}
-
-
-IPCFrame_BindServiceReply_MethodInfo::IPCFrame_BindServiceReply_MethodInfo() = default;
-IPCFrame_BindServiceReply_MethodInfo::~IPCFrame_BindServiceReply_MethodInfo() = default;
-IPCFrame_BindServiceReply_MethodInfo::IPCFrame_BindServiceReply_MethodInfo(const IPCFrame_BindServiceReply_MethodInfo&) = default;
-IPCFrame_BindServiceReply_MethodInfo& IPCFrame_BindServiceReply_MethodInfo::operator=(const IPCFrame_BindServiceReply_MethodInfo&) = default;
-IPCFrame_BindServiceReply_MethodInfo::IPCFrame_BindServiceReply_MethodInfo(IPCFrame_BindServiceReply_MethodInfo&&) noexcept = default;
-IPCFrame_BindServiceReply_MethodInfo& IPCFrame_BindServiceReply_MethodInfo::operator=(IPCFrame_BindServiceReply_MethodInfo&&) = default;
-
-bool IPCFrame_BindServiceReply_MethodInfo::operator==(const IPCFrame_BindServiceReply_MethodInfo& other) const {
-  return unknown_fields_ == other.unknown_fields_
-   && id_ == other.id_
-   && name_ == other.name_;
-}
-
-bool IPCFrame_BindServiceReply_MethodInfo::ParseFromArray(const void* raw, size_t size) {
-  unknown_fields_.clear();
-  bool packed_error = false;
-
-  ::protozero::ProtoDecoder dec(raw, size);
-  for (auto field = dec.ReadField(); field.valid(); field = dec.ReadField()) {
-    if (field.id() < _has_field_.size()) {
-      _has_field_.set(field.id());
-    }
-    switch (field.id()) {
-      case 1 /* id */:
-        field.get(&id_);
-        break;
-      case 2 /* name */:
-        field.get(&name_);
-        break;
-      default:
-        field.SerializeAndAppendTo(&unknown_fields_);
-        break;
-    }
-  }
-  return !packed_error && !dec.bytes_left();
-}
-
-std::string IPCFrame_BindServiceReply_MethodInfo::SerializeAsString() const {
-  ::protozero::HeapBuffered<::protozero::Message> msg;
-  Serialize(msg.get());
-  return msg.SerializeAsString();
-}
-
-std::vector<uint8_t> IPCFrame_BindServiceReply_MethodInfo::SerializeAsArray() const {
-  ::protozero::HeapBuffered<::protozero::Message> msg;
-  Serialize(msg.get());
-  return msg.SerializeAsArray();
-}
-
-void IPCFrame_BindServiceReply_MethodInfo::Serialize(::protozero::Message* msg) const {
-  // Field 1: id
-  if (_has_field_[1]) {
-    msg->AppendVarInt(1, id_);
-  }
-
-  // Field 2: name
-  if (_has_field_[2]) {
-    msg->AppendString(2, name_);
-  }
-
-  msg->AppendRawProtoBytes(unknown_fields_.data(), unknown_fields_.size());
-}
-
-
-IPCFrame_BindService::IPCFrame_BindService() = default;
-IPCFrame_BindService::~IPCFrame_BindService() = default;
-IPCFrame_BindService::IPCFrame_BindService(const IPCFrame_BindService&) = default;
-IPCFrame_BindService& IPCFrame_BindService::operator=(const IPCFrame_BindService&) = default;
-IPCFrame_BindService::IPCFrame_BindService(IPCFrame_BindService&&) noexcept = default;
-IPCFrame_BindService& IPCFrame_BindService::operator=(IPCFrame_BindService&&) = default;
-
-bool IPCFrame_BindService::operator==(const IPCFrame_BindService& other) const {
-  return unknown_fields_ == other.unknown_fields_
-   && service_name_ == other.service_name_;
-}
-
-bool IPCFrame_BindService::ParseFromArray(const void* raw, size_t size) {
-  unknown_fields_.clear();
-  bool packed_error = false;
-
-  ::protozero::ProtoDecoder dec(raw, size);
-  for (auto field = dec.ReadField(); field.valid(); field = dec.ReadField()) {
-    if (field.id() < _has_field_.size()) {
-      _has_field_.set(field.id());
-    }
-    switch (field.id()) {
-      case 1 /* service_name */:
-        field.get(&service_name_);
-        break;
-      default:
-        field.SerializeAndAppendTo(&unknown_fields_);
-        break;
-    }
-  }
-  return !packed_error && !dec.bytes_left();
-}
-
-std::string IPCFrame_BindService::SerializeAsString() const {
-  ::protozero::HeapBuffered<::protozero::Message> msg;
-  Serialize(msg.get());
-  return msg.SerializeAsString();
-}
-
-std::vector<uint8_t> IPCFrame_BindService::SerializeAsArray() const {
-  ::protozero::HeapBuffered<::protozero::Message> msg;
-  Serialize(msg.get());
-  return msg.SerializeAsArray();
-}
-
-void IPCFrame_BindService::Serialize(::protozero::Message* msg) const {
-  // Field 1: service_name
-  if (_has_field_[1]) {
-    msg->AppendString(1, service_name_);
-  }
-
-  msg->AppendRawProtoBytes(unknown_fields_.data(), unknown_fields_.size());
-}
-
-}  // namespace perfetto
-}  // namespace protos
-}  // namespace gen
-#if defined(__GNUC__) || defined(__clang__)
-#pragma GCC diagnostic pop
-#endif
-// gen_amalgamated begin source: src/base/unix_socket.cc
-// gen_amalgamated begin header: include/perfetto/ext/base/unix_socket.h
-/*
- * Copyright (C) 2017 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef INCLUDE_PERFETTO_EXT_BASE_UNIX_SOCKET_H_
-#define INCLUDE_PERFETTO_EXT_BASE_UNIX_SOCKET_H_
-
-#include <stdint.h>
-#include <sys/types.h>
-
-#include <memory>
-#include <string>
-
-// gen_amalgamated expanded: #include "perfetto/base/build_config.h"
-// gen_amalgamated expanded: #include "perfetto/base/export.h"
-// gen_amalgamated expanded: #include "perfetto/base/logging.h"
-// gen_amalgamated expanded: #include "perfetto/ext/base/scoped_file.h"
-// gen_amalgamated expanded: #include "perfetto/ext/base/utils.h"
-// gen_amalgamated expanded: #include "perfetto/ext/base/weak_ptr.h"
-
-struct msghdr;
-
-namespace perfetto {
-namespace base {
-
-// Define the SocketHandle and ScopedSocketHandle types.
-// On POSIX OSes, a SocketHandle is really just an int (a file descriptor).
-// On Windows, sockets are have their own type (SOCKET) which is neither a
-// HANDLE nor an int. However Windows SOCKET(s) can have a event HANDLE attached
-// to them (which in Perfetto is a PlatformHandle), and that can be used in
-// WaitForMultipleObjects, hence in base::TaskRunner.AddFileDescriptorWatch().
-
-#if PERFETTO_BUILDFLAG(PERFETTO_OS_WIN)
-// uintptr_t really reads as SOCKET here (Windows headers typedef to that).
-// As usual we don't just use SOCKET here to avoid leaking Windows.h includes
-// in our headers.
-using SocketHandle = uintptr_t;  // SOCKET
-int CloseSocket(SocketHandle);   // A wrapper around ::closesocket().
-using ScopedSocketHandle =
-    ScopedResource<SocketHandle, CloseSocket, static_cast<SocketHandle>(-1)>;
-#else
-using SocketHandle = int;
-using ScopedSocketHandle = ScopedFile;
-#endif
-
-class TaskRunner;
-
-// Use arbitrarily high values to avoid that some code accidentally ends up
-// assuming that these enum values match the sysroot's SOCK_xxx defines rather
-// than using GetSockType() / GetSockFamily().
-enum class SockType { kStream = 100, kDgram, kSeqPacket };
-enum class SockFamily { kUnix = 200, kInet, kInet6 };
-
-// Controls the getsockopt(SO_PEERCRED) behavior, which allows to obtain the
-// peer credentials.
-enum class SockPeerCredMode {
-  // Obtain the peer credentials immediatley after connection and cache them.
-  kReadOnConnect = 0,
-
-  // Don't read peer credentials at all. Calls to peer_uid()/peer_pid() will
-  // hit a DCHECK and return kInvalidUid/Pid in release builds.
-  kIgnore = 1,
-
-#if PERFETTO_BUILDFLAG(PERFETTO_OS_WIN)
-  kDefault = kIgnore,
-#else
-  kDefault = kReadOnConnect,
-#endif
-};
-
-// UnixSocketRaw is a basic wrapper around sockets. It exposes wrapper
-// methods that take care of most common pitfalls (e.g., marking fd as
-// O_CLOEXEC, avoiding SIGPIPE, properly handling partial writes). It is used as
-// a building block for the more sophisticated UnixSocket class which depends
-// on base::TaskRunner.
-class UnixSocketRaw {
- public:
-  // Creates a new unconnected unix socket.
-  static UnixSocketRaw CreateMayFail(SockFamily family, SockType type);
-
-#if !PERFETTO_BUILDFLAG(PERFETTO_OS_WIN)
-  // Crates a pair of connected sockets.
-  static std::pair<UnixSocketRaw, UnixSocketRaw> CreatePairPosix(SockFamily,
-                                                                 SockType);
-#endif
-
-  // Creates an uninitialized unix socket.
-  UnixSocketRaw();
-
-  // Creates a unix socket adopting an existing file descriptor. This is
-  // typically used to inherit fds from init via environment variables.
-  UnixSocketRaw(ScopedSocketHandle, SockFamily, SockType);
-
-  ~UnixSocketRaw() = default;
-  UnixSocketRaw(UnixSocketRaw&&) noexcept = default;
-  UnixSocketRaw& operator=(UnixSocketRaw&&) = default;
-
-  bool Bind(const std::string& socket_name);
-  bool Listen();
-  bool Connect(const std::string& socket_name);
-  bool SetTxTimeout(uint32_t timeout_ms);
-  bool SetRxTimeout(uint32_t timeout_ms);
-  void Shutdown();
-  void SetBlocking(bool);
-  void DcheckIsBlocking(bool expected) const;  // No-op on release and Win.
-  void RetainOnExec();
-  SockType type() const { return type_; }
-  SockFamily family() const { return family_; }
-  SocketHandle fd() const { return *fd_; }
-  explicit operator bool() const { return !!fd_; }
-
-  // This is the handle that passed to TaskRunner.AddFileDescriptorWatch().
-  // On UNIX this is just the socket FD. On Windows, we need to create a
-  // dedicated event object.
-  PlatformHandle watch_handle() const {
-#if PERFETTO_BUILDFLAG(PERFETTO_OS_WIN)
-    return *event_handle_;
-#else
-    return *fd_;
-#endif
-  }
-
-  ScopedSocketHandle ReleaseFd() { return std::move(fd_); }
-
-  // |send_fds| and |num_fds| are ignored on Windows.
-  ssize_t Send(const void* msg,
-               size_t len,
-               const int* send_fds = nullptr,
-               size_t num_fds = 0);
-
-  // |fd_vec| and |max_files| are ignored on Windows.
-  ssize_t Receive(void* msg,
-                  size_t len,
-                  ScopedFile* fd_vec = nullptr,
-                  size_t max_files = 0);
-
-#if !PERFETTO_BUILDFLAG(PERFETTO_OS_WIN)
-  // UNIX-specific helpers to deal with SCM_RIGHTS.
-
-  // Re-enter sendmsg until all the data has been sent or an error occurs.
-  // TODO(fmayer): Figure out how to do timeouts here for heapprofd.
-  ssize_t SendMsgAllPosix(struct msghdr* msg);
-
-  // Exposed for testing only.
-  // Update msghdr so subsequent sendmsg will send data that remains after n
-  // bytes have already been sent.
-  static void ShiftMsgHdrPosix(size_t n, struct msghdr* msg);
-#endif
-
- private:
-  UnixSocketRaw(SockFamily, SockType);
-
-  UnixSocketRaw(const UnixSocketRaw&) = delete;
-  UnixSocketRaw& operator=(const UnixSocketRaw&) = delete;
-
-  ScopedSocketHandle fd_;
-#if PERFETTO_BUILDFLAG(PERFETTO_OS_WIN)
-  ScopedPlatformHandle event_handle_;
-#endif
-  SockFamily family_ = SockFamily::kUnix;
-  SockType type_ = SockType::kStream;
-};
-
-// A non-blocking UNIX domain socket. Allows also to transfer file descriptors.
-// None of the methods in this class are blocking.
-// The main design goal is making strong guarantees on the EventListener
-// callbacks, in order to avoid ending in some undefined state.
-// In case of any error it will aggressively just shut down the socket and
-// notify the failure with OnConnect(false) or OnDisconnect() depending on the
-// state of the socket (see below).
-// EventListener callbacks stop happening as soon as the instance is destroyed.
-//
-// Lifecycle of a client socket:
-//
-//                           Connect()
-//                               |
-//            +------------------+------------------+
-//            | (success)                           | (failure or Shutdown())
-//            V                                     V
-//     OnConnect(true)                         OnConnect(false)
-//            |
-//            V
-//    OnDataAvailable()
-//            |
-//            V
-//     OnDisconnect()  (failure or shutdown)
-//
-//
-// Lifecycle of a server socket:
-//
-//                          Listen()  --> returns false in case of errors.
-//                             |
-//                             V
-//              OnNewIncomingConnection(new_socket)
-//
-//          (|new_socket| inherits the same EventListener)
-//                             |
-//                             V
-//                     OnDataAvailable()
-//                             | (failure or Shutdown())
-//                             V
-//                       OnDisconnect()
-class PERFETTO_EXPORT UnixSocket {
- public:
-  class EventListener {
-   public:
-    virtual ~EventListener();
-
-    // After Listen().
-    virtual void OnNewIncomingConnection(
-        UnixSocket* self,
-        std::unique_ptr<UnixSocket> new_connection);
-
-    // After Connect(), whether successful or not.
-    virtual void OnConnect(UnixSocket* self, bool connected);
-
-    // After a successful Connect() or OnNewIncomingConnection(). Either the
-    // other endpoint did disconnect or some other error happened.
-    virtual void OnDisconnect(UnixSocket* self);
-
-    // Whenever there is data available to Receive(). Note that spurious FD
-    // watch events are possible, so it is possible that Receive() soon after
-    // OnDataAvailable() returns 0 (just ignore those).
-    virtual void OnDataAvailable(UnixSocket* self);
-  };
-
-  enum class State {
-    kDisconnected = 0,  // Failed connection, peer disconnection or Shutdown().
-    kConnecting,  // Soon after Connect(), before it either succeeds or fails.
-    kConnected,   // After a successful Connect().
-    kListening    // After Listen(), until Shutdown().
-  };
-
-  // Creates a socket and starts listening. If SockFamily::kUnix and
-  // |socket_name| starts with a '@', an abstract UNIX dmoain socket will be
-  // created instead of a filesystem-linked UNIX socket (Linux/Android only).
-  // If SockFamily::kInet, |socket_name| is host:port (e.g., "1.2.3.4:8000").
-  // If SockFamily::kInet6, |socket_name| is [host]:port (e.g., "[::1]:8000").
-  // Returns nullptr if the socket creation or bind fails. If listening fails,
-  // (e.g. if another socket with the same name is already listening) the
-  // returned socket will have is_listening() == false.
-  static std::unique_ptr<UnixSocket> Listen(const std::string& socket_name,
-                                            EventListener*,
-                                            TaskRunner*,
-                                            SockFamily,
-                                            SockType);
-
-  // Attaches to a pre-existing socket. The socket must have been created in
-  // SOCK_STREAM mode and the caller must have called bind() on it.
-  static std::unique_ptr<UnixSocket> Listen(ScopedSocketHandle,
-                                            EventListener*,
-                                            TaskRunner*,
-                                            SockFamily,
-                                            SockType);
-
-  // Creates a Unix domain socket and connects to the listening endpoint.
-  // Returns always an instance. EventListener::OnConnect(bool success) will
-  // be called always, whether the connection succeeded or not.
-  static std::unique_ptr<UnixSocket> Connect(
-      const std::string& socket_name,
-      EventListener*,
-      TaskRunner*,
-      SockFamily,
-      SockType,
-      SockPeerCredMode = SockPeerCredMode::kDefault);
-
-  // Constructs a UnixSocket using the given connected socket.
-  static std::unique_ptr<UnixSocket> AdoptConnected(
-      ScopedSocketHandle,
-      EventListener*,
-      TaskRunner*,
-      SockFamily,
-      SockType,
-      SockPeerCredMode = SockPeerCredMode::kDefault);
-
-  UnixSocket(const UnixSocket&) = delete;
-  UnixSocket& operator=(const UnixSocket&) = delete;
-  // Cannot be easily moved because of tasks from the FileDescriptorWatch.
-  UnixSocket(UnixSocket&&) = delete;
-  UnixSocket& operator=(UnixSocket&&) = delete;
-
-  // This class gives the hard guarantee that no callback is called on the
-  // passed EventListener immediately after the object has been destroyed.
-  // Any queued callback will be silently dropped.
-  ~UnixSocket();
-
-  // Shuts down the current connection, if any. If the socket was Listen()-ing,
-  // stops listening. The socket goes back to kNotInitialized state, so it can
-  // be reused with Listen() or Connect().
-  void Shutdown(bool notify);
-
-  void SetTxTimeout(uint32_t timeout_ms) {
-    PERFETTO_CHECK(sock_raw_.SetTxTimeout(timeout_ms));
-  }
-  void SetRxTimeout(uint32_t timeout_ms) {
-    PERFETTO_CHECK(sock_raw_.SetRxTimeout(timeout_ms));
-  }
-  // Returns true is the message was queued, false if there was no space in the
-  // output buffer, in which case the client should retry or give up.
-  // If any other error happens the socket will be shutdown and
-  // EventListener::OnDisconnect() will be called.
-  // If the socket is not connected, Send() will just return false.
-  // Does not append a null string terminator to msg in any case.
-  bool Send(const void* msg, size_t len, const int* send_fds, size_t num_fds);
-
-  inline bool Send(const void* msg, size_t len, int send_fd = -1) {
-    if (send_fd != -1)
-      return Send(msg, len, &send_fd, 1);
-    return Send(msg, len, nullptr, 0);
-  }
-
-  inline bool Send(const std::string& msg) {
-    return Send(msg.c_str(), msg.size() + 1, -1);
-  }
-
-  // Returns the number of bytes (<= |len|) written in |msg| or 0 if there
-  // is no data in the buffer to read or an error occurs (in which case a
-  // EventListener::OnDisconnect() will follow).
-  // If the ScopedFile pointer is not null and a FD is received, it moves the
-  // received FD into that. If a FD is received but the ScopedFile pointer is
-  // null, the FD will be automatically closed.
-  size_t Receive(void* msg, size_t len, ScopedFile*, size_t max_files = 1);
-
-  inline size_t Receive(void* msg, size_t len) {
-    return Receive(msg, len, nullptr, 0);
-  }
-
-  // Only for tests. This is slower than Receive() as it requires a heap
-  // allocation and a copy for the std::string. Guarantees that the returned
-  // string is null terminated even if the underlying message sent by the peer
-  // is not.
-  std::string ReceiveString(size_t max_length = 1024);
-
-  bool is_connected() const { return state_ == State::kConnected; }
-  bool is_listening() const { return state_ == State::kListening; }
-  SocketHandle fd() const { return sock_raw_.fd(); }
-
-  // User ID of the peer, as returned by the kernel. If the client disconnects
-  // and the socket goes into the kDisconnected state, it retains the uid of
-  // the last peer.
-#if !PERFETTO_BUILDFLAG(PERFETTO_OS_WIN)
-  uid_t peer_uid_posix(bool skip_check_for_testing = false) const {
-    PERFETTO_DCHECK((!is_listening() && peer_uid_ != kInvalidUid) ||
-                    skip_check_for_testing);
-
-    return peer_uid_;
-  }
-#endif
-
-#if PERFETTO_BUILDFLAG(PERFETTO_OS_LINUX) || \
-    PERFETTO_BUILDFLAG(PERFETTO_OS_ANDROID)
-  // Process ID of the peer, as returned by the kernel. If the client
-  // disconnects and the socket goes into the kDisconnected state, it
-  // retains the pid of the last peer.
-  //
-  // This is only available on Linux / Android.
-  pid_t peer_pid_linux(bool skip_check_for_testing = false) const {
-    PERFETTO_DCHECK((!is_listening() && peer_pid_ != kInvalidPid) ||
-                    skip_check_for_testing);
-    return peer_pid_;
-  }
-#endif
-
-  // This makes the UnixSocket unusable.
-  UnixSocketRaw ReleaseSocket();
-
- private:
-  UnixSocket(EventListener*,
-             TaskRunner*,
-             SockFamily,
-             SockType,
-             SockPeerCredMode);
-  UnixSocket(EventListener*,
-             TaskRunner*,
-             ScopedSocketHandle,
-             State,
-             SockFamily,
-             SockType,
-             SockPeerCredMode);
-
-  // Called once by the corresponding public static factory methods.
-  void DoConnect(const std::string& socket_name);
-
-#if !PERFETTO_BUILDFLAG(PERFETTO_OS_WIN)
-  void ReadPeerCredentialsPosix();
-#endif
-
-  void OnEvent();
-  void NotifyConnectionState(bool success);
-
-  UnixSocketRaw sock_raw_;
-  State state_ = State::kDisconnected;
-  SockPeerCredMode peer_cred_mode_ = SockPeerCredMode::kDefault;
-
-#if !PERFETTO_BUILDFLAG(PERFETTO_OS_WIN)
-  uid_t peer_uid_ = kInvalidUid;
-#endif
-#if PERFETTO_BUILDFLAG(PERFETTO_OS_LINUX) || \
-    PERFETTO_BUILDFLAG(PERFETTO_OS_ANDROID)
-  pid_t peer_pid_ = kInvalidPid;
-#endif
-  EventListener* const event_listener_;
-  TaskRunner* const task_runner_;
-  WeakPtrFactory<UnixSocket> weak_ptr_factory_;  // Keep last.
-};
-
-}  // namespace base
-}  // namespace perfetto
-
-#endif  // INCLUDE_PERFETTO_EXT_BASE_UNIX_SOCKET_H_
-/*
- * Copyright (C) 2017 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-// gen_amalgamated expanded: #include "perfetto/ext/base/unix_socket.h"
-
-#include <errno.h>
-#include <fcntl.h>
-#include <stdlib.h>
-#include <string.h>
-#include <sys/stat.h>
-#include <sys/types.h>
-// gen_amalgamated expanded: #include "perfetto/base/compiler.h"
-
-#if PERFETTO_BUILDFLAG(PERFETTO_OS_WIN)
-// The include order matters on these three Windows header groups.
-#include <Windows.h>
-
-#include <WS2tcpip.h>
-#include <WinSock2.h>
-
-#include <afunix.h>
-#else
-#include <netdb.h>
-#include <netinet/in.h>
-#include <netinet/tcp.h>
-#include <sys/socket.h>
-#include <sys/un.h>
-#include <unistd.h>
-#endif
-
-#if PERFETTO_BUILDFLAG(PERFETTO_OS_APPLE)
-#include <sys/ucred.h>
-#endif
-
-#include <algorithm>
-#include <memory>
-
-// gen_amalgamated expanded: #include "perfetto/base/build_config.h"
-// gen_amalgamated expanded: #include "perfetto/base/logging.h"
-// gen_amalgamated expanded: #include "perfetto/base/task_runner.h"
-// gen_amalgamated expanded: #include "perfetto/ext/base/string_utils.h"
-// gen_amalgamated expanded: #include "perfetto/ext/base/utils.h"
-
-namespace perfetto {
-namespace base {
-
-// The CMSG_* macros use NULL instead of nullptr.
-// Note: MSVC doesn't have #pragma GCC diagnostic, hence the if __GNUC__.
-#if defined(__GNUC__) && !PERFETTO_BUILDFLAG(PERFETTO_OS_APPLE)
-#pragma GCC diagnostic push
-#pragma GCC diagnostic ignored "-Wzero-as-null-pointer-constant"
-#endif
-
-namespace {
-
-// MSG_NOSIGNAL is not supported on Mac OS X, but in that case the socket is
-// created with SO_NOSIGPIPE (See InitializeSocket()).
-// On Windows this does't apply as signals don't exist.
-#if PERFETTO_BUILDFLAG(PERFETTO_OS_WIN)
-#elif PERFETTO_BUILDFLAG(PERFETTO_OS_APPLE)
-constexpr int kNoSigPipe = 0;
-#else
-constexpr int kNoSigPipe = MSG_NOSIGNAL;
-#endif
-
-// Android takes an int instead of socklen_t for the control buffer size.
-#if PERFETTO_BUILDFLAG(PERFETTO_OS_ANDROID)
-using CBufLenType = size_t;
-#else
-using CBufLenType = socklen_t;
-#endif
-
-// A wrapper around variable-size sockaddr structs.
-// This is solving the following problem: when calling connect() or bind(), the
-// caller needs to take care to allocate the right struct (sockaddr_un for
-// AF_UNIX, sockaddr_in for AF_INET).   Those structs have different sizes and,
-// more importantly, are bigger than the base struct sockaddr.
-struct SockaddrAny {
-  SockaddrAny() : size() {}
-  SockaddrAny(const void* addr, socklen_t sz)
-      : data(new char[static_cast<size_t>(sz)]), size(sz) {
-    memcpy(data.get(), addr, static_cast<size_t>(size));
-  }
-
-  const struct sockaddr* addr() const {
-    return reinterpret_cast<const struct sockaddr*>(data.get());
-  }
-
-  std::unique_ptr<char[]> data;
-  socklen_t size;
-};
-
-inline int GetSockFamily(SockFamily family) {
-  switch (family) {
-    case SockFamily::kUnix:
-      return AF_UNIX;
-    case SockFamily::kInet:
-      return AF_INET;
-    case SockFamily::kInet6:
-      return AF_INET6;
-  }
-  PERFETTO_CHECK(false);  // For GCC.
-}
-
-inline int GetSockType(SockType type) {
-#ifdef SOCK_CLOEXEC
-  constexpr int kSockCloExec = SOCK_CLOEXEC;
-#else
-  constexpr int kSockCloExec = 0;
-#endif
-  switch (type) {
-    case SockType::kStream:
-      return SOCK_STREAM | kSockCloExec;
-    case SockType::kDgram:
-      return SOCK_DGRAM | kSockCloExec;
-    case SockType::kSeqPacket:
-      return SOCK_SEQPACKET | kSockCloExec;
-  }
-  PERFETTO_CHECK(false);  // For GCC.
-}
-
-SockaddrAny MakeSockAddr(SockFamily family, const std::string& socket_name) {
-  switch (family) {
-    case SockFamily::kUnix: {
-      struct sockaddr_un saddr {};
-      const size_t name_len = socket_name.size();
-      if (name_len >= sizeof(saddr.sun_path)) {
-        errno = ENAMETOOLONG;
-        return SockaddrAny();
-      }
-      memcpy(saddr.sun_path, socket_name.data(), name_len);
-      if (saddr.sun_path[0] == '@') {
-        saddr.sun_path[0] = '\0';
-#if PERFETTO_BUILDFLAG(PERFETTO_OS_WIN)
-        // The MSDN blog claims that abstract (non-filesystem based) AF_UNIX
-        // socket are supported, but that doesn't seem true.
-        PERFETTO_ELOG(
-            "Abstract AF_UNIX sockets are not supported on Windows, see "
-            "https://github.com/microsoft/WSL/issues/4240");
-        return SockaddrAny{};
-#endif
-      }
-      saddr.sun_family = AF_UNIX;
-      auto size = static_cast<socklen_t>(
-          __builtin_offsetof(sockaddr_un, sun_path) + name_len + 1);
-      PERFETTO_CHECK(static_cast<size_t>(size) <= sizeof(saddr));
-      return SockaddrAny(&saddr, size);
-    }
-    case SockFamily::kInet: {
-      auto parts = SplitString(socket_name, ":");
-      PERFETTO_CHECK(parts.size() == 2);
-      struct addrinfo* addr_info = nullptr;
-      struct addrinfo hints {};
-      hints.ai_family = AF_INET;
-      PERFETTO_CHECK(getaddrinfo(parts[0].c_str(), parts[1].c_str(), &hints,
-                                 &addr_info) == 0);
-      PERFETTO_CHECK(addr_info->ai_family == AF_INET);
-      SockaddrAny res(addr_info->ai_addr,
-                      static_cast<socklen_t>(addr_info->ai_addrlen));
-      freeaddrinfo(addr_info);
-      return res;
-    }
-    case SockFamily::kInet6: {
-      auto parts = SplitString(socket_name, "]");
-      PERFETTO_CHECK(parts.size() == 2);
-      auto address = SplitString(parts[0], "[");
-      PERFETTO_CHECK(address.size() == 1);
-      auto port = SplitString(parts[1], ":");
-      PERFETTO_CHECK(port.size() == 1);
-      struct addrinfo* addr_info = nullptr;
-      struct addrinfo hints {};
-      hints.ai_family = AF_INET6;
-      PERFETTO_CHECK(getaddrinfo(address[0].c_str(), port[0].c_str(), &hints,
-                                 &addr_info) == 0);
-      PERFETTO_CHECK(addr_info->ai_family == AF_INET6);
-      SockaddrAny res(addr_info->ai_addr,
-                      static_cast<socklen_t>(addr_info->ai_addrlen));
-      freeaddrinfo(addr_info);
-      return res;
-    }
-  }
-  PERFETTO_CHECK(false);  // For GCC.
-}
-
-ScopedSocketHandle CreateSocketHandle(SockFamily family, SockType type) {
-#if PERFETTO_BUILDFLAG(PERFETTO_OS_WIN)
-  static bool init_winsock_once = [] {
-    WSADATA ignored{};
-    return WSAStartup(MAKEWORD(2, 2), &ignored) == 0;
-  }();
-  PERFETTO_CHECK(init_winsock_once);
-#endif
-  return ScopedSocketHandle(
-      socket(GetSockFamily(family), GetSockType(type), 0));
-}
-
-}  // namespace
-
-#if PERFETTO_BUILDFLAG(PERFETTO_OS_WIN)
-int CloseSocket(SocketHandle s) {
-  return ::closesocket(s);
-}
-#endif
-
-// +-----------------------+
-// | UnixSocketRaw methods |
-// +-----------------------+
-
-#if !PERFETTO_BUILDFLAG(PERFETTO_OS_WIN)
-// static
-void UnixSocketRaw::ShiftMsgHdrPosix(size_t n, struct msghdr* msg) {
-  using LenType = decltype(msg->msg_iovlen);  // Mac and Linux don't agree.
-  for (LenType i = 0; i < msg->msg_iovlen; ++i) {
-    struct iovec* vec = &msg->msg_iov[i];
-    if (n < vec->iov_len) {
-      // We sent a part of this iovec.
-      vec->iov_base = reinterpret_cast<char*>(vec->iov_base) + n;
-      vec->iov_len -= n;
-      msg->msg_iov = vec;
-      msg->msg_iovlen -= i;
-      return;
-    }
-    // We sent the whole iovec.
-    n -= vec->iov_len;
-  }
-  // We sent all the iovecs.
-  PERFETTO_CHECK(n == 0);
-  msg->msg_iovlen = 0;
-  msg->msg_iov = nullptr;
-}
-
-// static
-std::pair<UnixSocketRaw, UnixSocketRaw> UnixSocketRaw::CreatePairPosix(
-    SockFamily family,
-    SockType type) {
-  int fds[2];
-  if (socketpair(GetSockFamily(family), GetSockType(type), 0, fds) != 0)
-    return std::make_pair(UnixSocketRaw(), UnixSocketRaw());
-
-  return std::make_pair(UnixSocketRaw(ScopedFile(fds[0]), family, type),
-                        UnixSocketRaw(ScopedFile(fds[1]), family, type));
-}
-#endif
-
-// static
-UnixSocketRaw UnixSocketRaw::CreateMayFail(SockFamily family, SockType type) {
-  auto fd = CreateSocketHandle(family, type);
-  if (!fd)
-    return UnixSocketRaw();
-  return UnixSocketRaw(std::move(fd), family, type);
-}
-
-UnixSocketRaw::UnixSocketRaw() = default;
-
-UnixSocketRaw::UnixSocketRaw(SockFamily family, SockType type)
-    : UnixSocketRaw(CreateSocketHandle(family, type), family, type) {}
-
-UnixSocketRaw::UnixSocketRaw(ScopedSocketHandle fd,
-                             SockFamily family,
-                             SockType type)
-    : fd_(std::move(fd)), family_(family), type_(type) {
-  PERFETTO_CHECK(fd_);
-#if PERFETTO_BUILDFLAG(PERFETTO_OS_APPLE)
-  const int no_sigpipe = 1;
-  setsockopt(*fd_, SOL_SOCKET, SO_NOSIGPIPE, &no_sigpipe, sizeof(no_sigpipe));
-#endif
-
-  if (family == SockFamily::kInet || family == SockFamily::kInet6) {
-    int flag = 1;
-    // The reinterpret_cast<const char*> is needed for Windows, where the 4th
-    // arg is a const char* (on other POSIX system is a const void*).
-    PERFETTO_CHECK(!setsockopt(*fd_, SOL_SOCKET, SO_REUSEADDR,
-                               reinterpret_cast<const char*>(&flag),
-                               sizeof(flag)));
-    flag = 1;
-    // Disable Nagle's algorithm, optimize for low-latency.
-    // See https://github.com/google/perfetto/issues/70.
-    setsockopt(*fd_, IPPROTO_TCP, TCP_NODELAY,
-               reinterpret_cast<const char*>(&flag), sizeof(flag));
-  }
-
-#if PERFETTO_BUILDFLAG(PERFETTO_OS_WIN)
-  // We use one event handle for all socket events, to stay consistent to what
-  // we do on UNIX with the base::TaskRunner's poll().
-  event_handle_.reset(WSACreateEvent());
-  PERFETTO_CHECK(event_handle_);
-#else
-  // There is no reason why a socket should outlive the process in case of
-  // exec() by default, this is just working around a broken unix design.
-  int fcntl_res = fcntl(*fd_, F_SETFD, FD_CLOEXEC);
-  PERFETTO_CHECK(fcntl_res == 0);
-#endif
-}
-
-void UnixSocketRaw::SetBlocking(bool is_blocking) {
-  PERFETTO_DCHECK(fd_);
-#if PERFETTO_BUILDFLAG(PERFETTO_OS_WIN)
-  unsigned long flag = is_blocking ? 0 : 1;  // FIONBIO has reverse logic.
-  if (is_blocking) {
-    // When switching between non-blocking -> blocking mode, we need to reset
-    // the event handle registration, otherwise the call will fail.
-    PERFETTO_CHECK(WSAEventSelect(*fd_, *event_handle_, 0) == 0);
-  }
-  PERFETTO_CHECK(ioctlsocket(*fd_, static_cast<long>(FIONBIO), &flag) == 0);
-  if (!is_blocking) {
-    PERFETTO_CHECK(
-        WSAEventSelect(*fd_, *event_handle_,
-                       FD_ACCEPT | FD_CONNECT | FD_READ | FD_CLOSE) == 0);
-  }
-#else
-  int flags = fcntl(*fd_, F_GETFL, 0);
-  if (!is_blocking) {
-    flags |= O_NONBLOCK;
-  } else {
-    flags &= ~static_cast<int>(O_NONBLOCK);
-  }
-  int fcntl_res = fcntl(*fd_, F_SETFL, flags);
-  PERFETTO_CHECK(fcntl_res == 0);
-#endif
-}
-
-void UnixSocketRaw::RetainOnExec() {
-#if !PERFETTO_BUILDFLAG(PERFETTO_OS_WIN)
-  PERFETTO_DCHECK(fd_);
-  int flags = fcntl(*fd_, F_GETFD, 0);
-  flags &= ~static_cast<int>(FD_CLOEXEC);
-  int fcntl_res = fcntl(*fd_, F_SETFD, flags);
-  PERFETTO_CHECK(fcntl_res == 0);
-#endif
-}
-
-void UnixSocketRaw::DcheckIsBlocking(bool expected) const {
-#if PERFETTO_BUILDFLAG(PERFETTO_OS_WIN)
-  ignore_result(expected);
-#else
-  PERFETTO_DCHECK(fd_);
-  bool is_blocking = (fcntl(*fd_, F_GETFL, 0) & O_NONBLOCK) == 0;
-  PERFETTO_DCHECK(is_blocking == expected);
-#endif
-}
-
-bool UnixSocketRaw::Bind(const std::string& socket_name) {
-  PERFETTO_DCHECK(fd_);
-  SockaddrAny addr = MakeSockAddr(family_, socket_name);
-  if (addr.size == 0)
-    return false;
-
-  if (bind(*fd_, addr.addr(), addr.size)) {
-    PERFETTO_DPLOG("bind(%s)", socket_name.c_str());
-    return false;
-  }
-
-  return true;
-}
-
-bool UnixSocketRaw::Listen() {
-  PERFETTO_DCHECK(fd_);
-  PERFETTO_DCHECK(type_ == SockType::kStream || type_ == SockType::kSeqPacket);
-  return listen(*fd_, SOMAXCONN) == 0;
-}
-
-bool UnixSocketRaw::Connect(const std::string& socket_name) {
-  PERFETTO_DCHECK(fd_);
-  SockaddrAny addr = MakeSockAddr(family_, socket_name);
-  if (addr.size == 0)
-    return false;
-
-  int res = PERFETTO_EINTR(connect(*fd_, addr.addr(), addr.size));
-#if PERFETTO_BUILDFLAG(PERFETTO_OS_WIN)
-  bool continue_async = WSAGetLastError() == WSAEWOULDBLOCK;
-#else
-  bool continue_async = errno == EINPROGRESS;
-#endif
-  if (res && !continue_async)
-    return false;
-
-  return true;
-}
-
-void UnixSocketRaw::Shutdown() {
-#if PERFETTO_BUILDFLAG(PERFETTO_OS_WIN)
-  // Somebody felt very strongly about the naming of this constant.
-  shutdown(*fd_, SD_BOTH);
-#else
-  shutdown(*fd_, SHUT_RDWR);
-#endif
-  fd_.reset();
-}
-
-#if PERFETTO_BUILDFLAG(PERFETTO_OS_WIN)
-
-ssize_t UnixSocketRaw::Send(const void* msg,
-                            size_t len,
-                            const int* /*send_fds*/,
-                            size_t num_fds) {
-  PERFETTO_DCHECK(num_fds == 0);
-  return sendto(*fd_, static_cast<const char*>(msg), static_cast<int>(len), 0,
-                nullptr, 0);
-}
-
-ssize_t UnixSocketRaw::Receive(void* msg,
-                               size_t len,
-                               ScopedFile* /*fd_vec*/,
-                               size_t /*max_files*/) {
-  return recv(*fd_, static_cast<char*>(msg), static_cast<int>(len), 0);
-}
-
-#else
-// For the interested reader, Linux kernel dive to verify this is not only a
-// theoretical possibility: sock_stream_sendmsg, if sock_alloc_send_pskb returns
-// NULL [1] (which it does when it gets interrupted [2]), returns early with the
-// amount of bytes already sent.
-//
-// [1]:
-// https://elixir.bootlin.com/linux/v4.18.10/source/net/unix/af_unix.c#L1872
-// [2]: https://elixir.bootlin.com/linux/v4.18.10/source/net/core/sock.c#L2101
-ssize_t UnixSocketRaw::SendMsgAllPosix(struct msghdr* msg) {
-  // This does not make sense on non-blocking sockets.
-  PERFETTO_DCHECK(fd_);
-
-  ssize_t total_sent = 0;
-  while (msg->msg_iov) {
-    ssize_t sent = PERFETTO_EINTR(sendmsg(*fd_, msg, kNoSigPipe));
-    if (sent <= 0) {
-      if (sent == -1 && IsAgain(errno))
-        return total_sent;
-      return sent;
-    }
-    total_sent += sent;
-    ShiftMsgHdrPosix(static_cast<size_t>(sent), msg);
-    // Only send the ancillary data with the first sendmsg call.
-    msg->msg_control = nullptr;
-    msg->msg_controllen = 0;
-  }
-  return total_sent;
-}
-
-ssize_t UnixSocketRaw::Send(const void* msg,
-                            size_t len,
-                            const int* send_fds,
-                            size_t num_fds) {
-  PERFETTO_DCHECK(fd_);
-  msghdr msg_hdr = {};
-  iovec iov = {const_cast<void*>(msg), len};
-  msg_hdr.msg_iov = &iov;
-  msg_hdr.msg_iovlen = 1;
-  alignas(cmsghdr) char control_buf[256];
-
-  if (num_fds > 0) {
-    const auto raw_ctl_data_sz = num_fds * sizeof(int);
-    const CBufLenType control_buf_len =
-        static_cast<CBufLenType>(CMSG_SPACE(raw_ctl_data_sz));
-    PERFETTO_CHECK(control_buf_len <= sizeof(control_buf));
-    memset(control_buf, 0, sizeof(control_buf));
-    msg_hdr.msg_control = control_buf;
-    msg_hdr.msg_controllen = control_buf_len;  // used by CMSG_FIRSTHDR
-    struct cmsghdr* cmsg = CMSG_FIRSTHDR(&msg_hdr);
-    cmsg->cmsg_level = SOL_SOCKET;
-    cmsg->cmsg_type = SCM_RIGHTS;
-    cmsg->cmsg_len = static_cast<CBufLenType>(CMSG_LEN(raw_ctl_data_sz));
-    memcpy(CMSG_DATA(cmsg), send_fds, num_fds * sizeof(int));
-    // note: if we were to send multiple cmsghdr structures, then
-    // msg_hdr.msg_controllen would need to be adjusted, see "man 3 cmsg".
-  }
-
-  return SendMsgAllPosix(&msg_hdr);
-}
-
-ssize_t UnixSocketRaw::Receive(void* msg,
-                               size_t len,
-                               ScopedFile* fd_vec,
-                               size_t max_files) {
-  PERFETTO_DCHECK(fd_);
-  msghdr msg_hdr = {};
-  iovec iov = {msg, len};
-  msg_hdr.msg_iov = &iov;
-  msg_hdr.msg_iovlen = 1;
-  alignas(cmsghdr) char control_buf[256];
-
-  if (max_files > 0) {
-    msg_hdr.msg_control = control_buf;
-    msg_hdr.msg_controllen =
-        static_cast<CBufLenType>(CMSG_SPACE(max_files * sizeof(int)));
-    PERFETTO_CHECK(msg_hdr.msg_controllen <= sizeof(control_buf));
-  }
-  const ssize_t sz = PERFETTO_EINTR(recvmsg(*fd_, &msg_hdr, 0));
-  if (sz <= 0) {
-    return sz;
-  }
-  PERFETTO_CHECK(static_cast<size_t>(sz) <= len);
-
-  int* fds = nullptr;
-  uint32_t fds_len = 0;
-
-  if (max_files > 0) {
-    for (cmsghdr* cmsg = CMSG_FIRSTHDR(&msg_hdr); cmsg;
-         cmsg = CMSG_NXTHDR(&msg_hdr, cmsg)) {
-      const size_t payload_len = cmsg->cmsg_len - CMSG_LEN(0);
-      if (cmsg->cmsg_level == SOL_SOCKET && cmsg->cmsg_type == SCM_RIGHTS) {
-        PERFETTO_DCHECK(payload_len % sizeof(int) == 0u);
-        PERFETTO_CHECK(fds == nullptr);
-        fds = reinterpret_cast<int*>(CMSG_DATA(cmsg));
-        fds_len = static_cast<uint32_t>(payload_len / sizeof(int));
-      }
-    }
-  }
-
-  if (msg_hdr.msg_flags & MSG_TRUNC || msg_hdr.msg_flags & MSG_CTRUNC) {
-    for (size_t i = 0; fds && i < fds_len; ++i)
-      close(fds[i]);
-    PERFETTO_ELOG(
-        "Socket message truncated. This might be due to a SELinux denial on "
-        "fd:use.");
-    errno = EMSGSIZE;
-    return -1;
-  }
-
-  for (size_t i = 0; fds && i < fds_len; ++i) {
-    if (i < max_files)
-      fd_vec[i].reset(fds[i]);
-    else
-      close(fds[i]);
-  }
-
-  return sz;
-}
-#endif  // OS_WIN
-
-bool UnixSocketRaw::SetTxTimeout(uint32_t timeout_ms) {
-  PERFETTO_DCHECK(fd_);
-#if PERFETTO_BUILDFLAG(PERFETTO_OS_WIN)
-  DWORD timeout = timeout_ms;
-#else
-  struct timeval timeout {};
-  uint32_t timeout_sec = timeout_ms / 1000;
-  timeout.tv_sec = static_cast<decltype(timeout.tv_sec)>(timeout_sec);
-  timeout.tv_usec = static_cast<decltype(timeout.tv_usec)>(
-      (timeout_ms - (timeout_sec * 1000)) * 1000);
-#endif
-  return setsockopt(*fd_, SOL_SOCKET, SO_SNDTIMEO,
-                    reinterpret_cast<const char*>(&timeout),
-                    sizeof(timeout)) == 0;
-}
-
-bool UnixSocketRaw::SetRxTimeout(uint32_t timeout_ms) {
-  PERFETTO_DCHECK(fd_);
-#if PERFETTO_BUILDFLAG(PERFETTO_OS_WIN)
-  DWORD timeout = timeout_ms;
-#else
-  struct timeval timeout {};
-  uint32_t timeout_sec = timeout_ms / 1000;
-  timeout.tv_sec = static_cast<decltype(timeout.tv_sec)>(timeout_sec);
-  timeout.tv_usec = static_cast<decltype(timeout.tv_usec)>(
-      (timeout_ms - (timeout_sec * 1000)) * 1000);
-#endif
-  return setsockopt(*fd_, SOL_SOCKET, SO_RCVTIMEO,
-                    reinterpret_cast<const char*>(&timeout),
-                    sizeof(timeout)) == 0;
-}
-
-#if defined(__GNUC__) && !PERFETTO_BUILDFLAG(PERFETTO_OS_APPLE)
-#pragma GCC diagnostic pop
-#endif
-
-// +--------------------+
-// | UnixSocket methods |
-// +--------------------+
-
-// TODO(primiano): Add ThreadChecker to methods of this class.
-
-// static
-std::unique_ptr<UnixSocket> UnixSocket::Listen(const std::string& socket_name,
-                                               EventListener* event_listener,
-                                               TaskRunner* task_runner,
-                                               SockFamily sock_family,
-                                               SockType sock_type) {
-  auto sock_raw = UnixSocketRaw::CreateMayFail(sock_family, sock_type);
-  if (!sock_raw || !sock_raw.Bind(socket_name))
-    return nullptr;
-
-  // Forward the call to the Listen() overload below.
-  return Listen(sock_raw.ReleaseFd(), event_listener, task_runner, sock_family,
-                sock_type);
-}
-
-// static
-std::unique_ptr<UnixSocket> UnixSocket::Listen(ScopedSocketHandle fd,
-                                               EventListener* event_listener,
-                                               TaskRunner* task_runner,
-                                               SockFamily sock_family,
-                                               SockType sock_type) {
-  return std::unique_ptr<UnixSocket>(new UnixSocket(
-      event_listener, task_runner, std::move(fd), State::kListening,
-      sock_family, sock_type, SockPeerCredMode::kDefault));
-}
-
-// static
-std::unique_ptr<UnixSocket> UnixSocket::Connect(
-    const std::string& socket_name,
-    EventListener* event_listener,
-    TaskRunner* task_runner,
-    SockFamily sock_family,
-    SockType sock_type,
-    SockPeerCredMode peer_cred_mode) {
-  std::unique_ptr<UnixSocket> sock(new UnixSocket(
-      event_listener, task_runner, sock_family, sock_type, peer_cred_mode));
-  sock->DoConnect(socket_name);
-  return sock;
-}
-
-// static
-std::unique_ptr<UnixSocket> UnixSocket::AdoptConnected(
-    ScopedSocketHandle fd,
-    EventListener* event_listener,
-    TaskRunner* task_runner,
-    SockFamily sock_family,
-    SockType sock_type,
-    SockPeerCredMode peer_cred_mode) {
-  return std::unique_ptr<UnixSocket>(new UnixSocket(
-      event_listener, task_runner, std::move(fd), State::kConnected,
-      sock_family, sock_type, peer_cred_mode));
-}
-
-UnixSocket::UnixSocket(EventListener* event_listener,
-                       TaskRunner* task_runner,
-                       SockFamily sock_family,
-                       SockType sock_type,
-                       SockPeerCredMode peer_cred_mode)
-    : UnixSocket(event_listener,
-                 task_runner,
-                 ScopedSocketHandle(),
-                 State::kDisconnected,
-                 sock_family,
-                 sock_type,
-                 peer_cred_mode) {}
-
-UnixSocket::UnixSocket(EventListener* event_listener,
-                       TaskRunner* task_runner,
-                       ScopedSocketHandle adopt_fd,
-                       State adopt_state,
-                       SockFamily sock_family,
-                       SockType sock_type,
-                       SockPeerCredMode peer_cred_mode)
-    : peer_cred_mode_(peer_cred_mode),
-      event_listener_(event_listener),
-      task_runner_(task_runner),
-      weak_ptr_factory_(this) {
-  state_ = State::kDisconnected;
-  if (adopt_state == State::kDisconnected) {
-    PERFETTO_DCHECK(!adopt_fd);
-    sock_raw_ = UnixSocketRaw::CreateMayFail(sock_family, sock_type);
-    if (!sock_raw_)
-      return;
-  } else if (adopt_state == State::kConnected) {
-    PERFETTO_DCHECK(adopt_fd);
-    sock_raw_ = UnixSocketRaw(std::move(adopt_fd), sock_family, sock_type);
-    state_ = State::kConnected;
-#if !PERFETTO_BUILDFLAG(PERFETTO_OS_WIN)
-    if (peer_cred_mode_ == SockPeerCredMode::kReadOnConnect)
-      ReadPeerCredentialsPosix();
-#endif
-  } else if (adopt_state == State::kListening) {
-    // We get here from Listen().
-
-    // |adopt_fd| might genuinely be invalid if the bind() failed.
-    if (!adopt_fd)
-      return;
-
-    sock_raw_ = UnixSocketRaw(std::move(adopt_fd), sock_family, sock_type);
-    if (!sock_raw_.Listen()) {
-      PERFETTO_DPLOG("listen() failed");
-      return;
-    }
-    state_ = State::kListening;
-  } else {
-    PERFETTO_FATAL("Unexpected adopt_state");  // Unfeasible.
-  }
-
-  PERFETTO_CHECK(sock_raw_);
-
-  sock_raw_.SetBlocking(false);
-
-  WeakPtr<UnixSocket> weak_ptr = weak_ptr_factory_.GetWeakPtr();
-
-  task_runner_->AddFileDescriptorWatch(sock_raw_.watch_handle(), [weak_ptr] {
-    if (weak_ptr)
-      weak_ptr->OnEvent();
-  });
-}
-
-UnixSocket::~UnixSocket() {
-  // The implicit dtor of |weak_ptr_factory_| will no-op pending callbacks.
-  Shutdown(true);
-}
-
-UnixSocketRaw UnixSocket::ReleaseSocket() {
-  // This will invalidate any pending calls to OnEvent.
-  state_ = State::kDisconnected;
-  if (sock_raw_)
-    task_runner_->RemoveFileDescriptorWatch(sock_raw_.watch_handle());
-
-  return std::move(sock_raw_);
-}
-
-// Called only by the Connect() static constructor.
-void UnixSocket::DoConnect(const std::string& socket_name) {
-  PERFETTO_DCHECK(state_ == State::kDisconnected);
-
-  // This is the only thing that can gracefully fail in the ctor.
-  if (!sock_raw_)
-    return NotifyConnectionState(false);
-
-  if (!sock_raw_.Connect(socket_name))
-    return NotifyConnectionState(false);
-
-  // At this point either connect() succeeded or started asynchronously
-  // (errno = EINPROGRESS).
-  state_ = State::kConnecting;
-
-  // Even if the socket is non-blocking, connecting to a UNIX socket can be
-  // acknowledged straight away rather than returning EINPROGRESS.
-  // The decision here is to deal with the two cases uniformly, at the cost of
-  // delaying the straight-away-connect() case by one task, to avoid depending
-  // on implementation details of UNIX socket on the various OSes.
-  // Posting the OnEvent() below emulates a wakeup of the FD watch. OnEvent(),
-  // which knows how to deal with spurious wakeups, will poll the SO_ERROR and
-  // evolve, if necessary, the state into either kConnected or kDisconnected.
-  WeakPtr<UnixSocket> weak_ptr = weak_ptr_factory_.GetWeakPtr();
-  task_runner_->PostTask([weak_ptr] {
-    if (weak_ptr)
-      weak_ptr->OnEvent();
-  });
-}
-
-#if !PERFETTO_BUILDFLAG(PERFETTO_OS_WIN)
-void UnixSocket::ReadPeerCredentialsPosix() {
-  // Peer credentials are supported only on AF_UNIX sockets.
-  if (sock_raw_.family() != SockFamily::kUnix)
-    return;
-  PERFETTO_CHECK(peer_cred_mode_ != SockPeerCredMode::kIgnore);
-
-#if PERFETTO_BUILDFLAG(PERFETTO_OS_LINUX) || \
-    PERFETTO_BUILDFLAG(PERFETTO_OS_ANDROID)
-  struct ucred user_cred;
-  socklen_t len = sizeof(user_cred);
-  int fd = sock_raw_.fd();
-  int res = getsockopt(fd, SOL_SOCKET, SO_PEERCRED, &user_cred, &len);
-  PERFETTO_CHECK(res == 0);
-  peer_uid_ = user_cred.uid;
-  peer_pid_ = user_cred.pid;
-#elif PERFETTO_BUILDFLAG(PERFETTO_OS_APPLE)
-  struct xucred user_cred;
-  socklen_t len = sizeof(user_cred);
-  int res = getsockopt(sock_raw_.fd(), 0, LOCAL_PEERCRED, &user_cred, &len);
-  PERFETTO_CHECK(res == 0 && user_cred.cr_version == XUCRED_VERSION);
-  peer_uid_ = static_cast<uid_t>(user_cred.cr_uid);
-  // There is no pid in the LOCAL_PEERCREDS for MacOS / FreeBSD.
-#endif
-}
-#endif  // !OS_WIN
-
-#if PERFETTO_BUILDFLAG(PERFETTO_OS_WIN)
-void UnixSocket::OnEvent() {
-  WSANETWORKEVENTS evts{};
-  PERFETTO_CHECK(WSAEnumNetworkEvents(sock_raw_.fd(), sock_raw_.watch_handle(),
-                                      &evts) == 0);
-  if (state_ == State::kDisconnected)
-    return;  // Some spurious event, typically queued just before Shutdown().
-
-  if (state_ == State::kConnecting && (evts.lNetworkEvents & FD_CONNECT)) {
-    PERFETTO_DCHECK(sock_raw_);
-    int err = evts.iErrorCode[FD_CONNECT_BIT];
-    if (err) {
-      PERFETTO_DPLOG("Connection error: %d", err);
-      Shutdown(false);
-      event_listener_->OnConnect(this, false /* connected */);
-      return;
-    }
-
-    // kReadOnConnect is not supported on Windows.
-    PERFETTO_DCHECK(peer_cred_mode_ != SockPeerCredMode::kReadOnConnect);
-    state_ = State::kConnected;
-    event_listener_->OnConnect(this, true /* connected */);
-  }
-
-  // This is deliberately NOT an else-if. When a client socket connects and
-  // there is already data queued, the following will happen within the same
-  // OnEvent() call:
-  // 1. The block above will transition kConnecting -> kConnected.
-  // 2. This block will cause an OnDataAvailable() call.
-  // Unlike UNIX, where poll() keeps signalling the event until the client
-  // does a recv(), Windows is more picky and stops signalling the event until
-  // the next call to recv() is made. In other words, in Windows we cannot
-  // miss an OnDataAvailable() call or the event pump will stop.
-  if (state_ == State::kConnected) {
-    if (evts.lNetworkEvents & FD_READ) {
-      event_listener_->OnDataAvailable(this);
-      // TODO(primiano): I am very conflicted here. Because of the behavior
-      // described above, if the event listener doesn't do a Recv() call in
-      // the OnDataAvailable() callback, WinSock won't notify the event ever
-      // again. On one side, I don't see any reason why a client should decide
-      // to not do a Recv() in OnDataAvailable. On the other side, the
-      // behavior here diverges from UNIX, where OnDataAvailable() would be
-      // re-posted immediately. In both cases, not doing a Recv() in
-      // OnDataAvailable, leads to something bad (getting stuck on Windows,
-      // getting in a hot loop on Linux), so doesn't feel we should worry too
-      // much about this. If we wanted to keep the behavrior consistent, here
-      // we should do something like: `if (sock_raw_)
-      // sock_raw_.SetBlocking(false)` (Note that the socket might be closed
-      // by the time we come back here, hence the if part).
-      return;
-    }
-    // Could read EOF and disconnect here.
-    if (evts.lNetworkEvents & FD_CLOSE) {
-      Shutdown(true);
-      return;
-    }
-  }
-
-  // New incoming connection.
-  if (state_ == State::kListening && (evts.lNetworkEvents & FD_ACCEPT)) {
-    // There could be more than one incoming connection behind each FD watch
-    // notification. Drain'em all.
-    for (;;) {
-      // Note: right now we don't need the remote endpoint, hence we pass
-      // nullptr to |addr| and |addrlen|. If we ever need to do so, be
-      // extremely careful. Windows' WinSock API will happily write more than
-      // |addrlen| (hence corrupt the stack) if the |addr| argument passed is
-      // not big enough (e.g. passing a struct sockaddr_in to a AF_UNIX
-      // socket, where sizeof(sockaddr_un) is >> sizef(sockaddr_in)). It seems
-      // a Windows / CRT bug in the AF_UNIX implementation.
-      ScopedSocketHandle new_fd(accept(sock_raw_.fd(), nullptr, nullptr));
-      if (!new_fd)
-        return;
-      std::unique_ptr<UnixSocket> new_sock(new UnixSocket(
-          event_listener_, task_runner_, std::move(new_fd), State::kConnected,
-          sock_raw_.family(), sock_raw_.type(), peer_cred_mode_));
-      event_listener_->OnNewIncomingConnection(this, std::move(new_sock));
-    }
-  }
-}
-#else
-void UnixSocket::OnEvent() {
-  if (state_ == State::kDisconnected)
-    return;  // Some spurious event, typically queued just before Shutdown().
-
-  if (state_ == State::kConnected)
-    return event_listener_->OnDataAvailable(this);
-
-  if (state_ == State::kConnecting) {
-    PERFETTO_DCHECK(sock_raw_);
-    int sock_err = EINVAL;
-    socklen_t err_len = sizeof(sock_err);
-    int res =
-        getsockopt(sock_raw_.fd(), SOL_SOCKET, SO_ERROR, &sock_err, &err_len);
-
-    if (res == 0 && sock_err == EINPROGRESS)
-      return;  // Not connected yet, just a spurious FD watch wakeup.
-    if (res == 0 && sock_err == 0) {
-      if (peer_cred_mode_ == SockPeerCredMode::kReadOnConnect)
-        ReadPeerCredentialsPosix();
-      state_ = State::kConnected;
-      return event_listener_->OnConnect(this, true /* connected */);
-    }
-    PERFETTO_DLOG("Connection error: %s", strerror(sock_err));
-    Shutdown(false);
-    return event_listener_->OnConnect(this, false /* connected */);
-  }
-
-  // New incoming connection.
-  if (state_ == State::kListening) {
-    // There could be more than one incoming connection behind each FD watch
-    // notification. Drain'em all.
-    for (;;) {
-      ScopedFile new_fd(
-          PERFETTO_EINTR(accept(sock_raw_.fd(), nullptr, nullptr)));
-      if (!new_fd)
-        return;
-      std::unique_ptr<UnixSocket> new_sock(new UnixSocket(
-          event_listener_, task_runner_, std::move(new_fd), State::kConnected,
-          sock_raw_.family(), sock_raw_.type(), peer_cred_mode_));
-      event_listener_->OnNewIncomingConnection(this, std::move(new_sock));
-    }
-  }
-}
-#endif
-
-bool UnixSocket::Send(const void* msg,
-                      size_t len,
-                      const int* send_fds,
-                      size_t num_fds) {
-  if (state_ != State::kConnected) {
-    errno = ENOTCONN;
-    return false;
-  }
-
-  sock_raw_.SetBlocking(true);
-  const ssize_t sz = sock_raw_.Send(msg, len, send_fds, num_fds);
-  sock_raw_.SetBlocking(false);
-
-  if (sz == static_cast<ssize_t>(len)) {
-    return true;
-  }
-
-  // If we ever decide to support non-blocking sends again, here we should
-  // watch for both EAGAIN and EWOULDBLOCK (see base::IsAgain()).
-
-  // If sendmsg() succeeds but the returned size is >= 0 and < |len| it means
-  // that the endpoint disconnected in the middle of the read, and we managed
-  // to send only a portion of the buffer.
-  // If sz < 0, either the other endpoint disconnected (ECONNRESET) or some
-  // other error happened. In both cases we should just give up.
-  PERFETTO_DPLOG("sendmsg() failed");
-  Shutdown(true);
-  return false;
-}
-
-void UnixSocket::Shutdown(bool notify) {
-  WeakPtr<UnixSocket> weak_ptr = weak_ptr_factory_.GetWeakPtr();
-  if (notify) {
-    if (state_ == State::kConnected) {
-      task_runner_->PostTask([weak_ptr] {
-        if (weak_ptr)
-          weak_ptr->event_listener_->OnDisconnect(weak_ptr.get());
-      });
-    } else if (state_ == State::kConnecting) {
-      task_runner_->PostTask([weak_ptr] {
-        if (weak_ptr)
-          weak_ptr->event_listener_->OnConnect(weak_ptr.get(), false);
-      });
-    }
-  }
-
-  if (sock_raw_) {
-    task_runner_->RemoveFileDescriptorWatch(sock_raw_.watch_handle());
-    sock_raw_.Shutdown();
-  }
-  state_ = State::kDisconnected;
-}
-
-size_t UnixSocket::Receive(void* msg,
-                           size_t len,
-                           ScopedFile* fd_vec,
-                           size_t max_files) {
-  if (state_ != State::kConnected)
-    return 0;
-
-  const ssize_t sz = sock_raw_.Receive(msg, len, fd_vec, max_files);
-#if PERFETTO_BUILDFLAG(PERFETTO_OS_WIN)
-  bool async_would_block = WSAGetLastError() == WSAEWOULDBLOCK;
-#else
-  bool async_would_block = IsAgain(errno);
-#endif
-  if (sz < 0 && async_would_block)
-    return 0;
-
-  if (sz <= 0) {
-    Shutdown(true);
-    return 0;
-  }
-  PERFETTO_CHECK(static_cast<size_t>(sz) <= len);
-  return static_cast<size_t>(sz);
-}
-
-std::string UnixSocket::ReceiveString(size_t max_length) {
-  std::unique_ptr<char[]> buf(new char[max_length + 1]);
-  size_t rsize = Receive(buf.get(), max_length);
-  PERFETTO_CHECK(rsize <= max_length);
-  buf[rsize] = '\0';
-  return std::string(buf.get());
-}
-
-void UnixSocket::NotifyConnectionState(bool success) {
-  if (!success)
-    Shutdown(false);
-
-  WeakPtr<UnixSocket> weak_ptr = weak_ptr_factory_.GetWeakPtr();
-  task_runner_->PostTask([weak_ptr, success] {
-    if (weak_ptr)
-      weak_ptr->event_listener_->OnConnect(weak_ptr.get(), success);
-  });
-}
-
-UnixSocket::EventListener::~EventListener() {}
-void UnixSocket::EventListener::OnNewIncomingConnection(
-    UnixSocket*,
-    std::unique_ptr<UnixSocket>) {}
-void UnixSocket::EventListener::OnConnect(UnixSocket*, bool) {}
-void UnixSocket::EventListener::OnDisconnect(UnixSocket*) {}
-void UnixSocket::EventListener::OnDataAvailable(UnixSocket*) {}
-
-}  // namespace base
-}  // namespace perfetto
-// gen_amalgamated begin source: src/ipc/buffered_frame_deserializer.cc
-// gen_amalgamated begin header: src/ipc/buffered_frame_deserializer.h
-// gen_amalgamated begin header: include/perfetto/ext/ipc/basic_types.h
-/*
- * Copyright (C) 2017 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef INCLUDE_PERFETTO_EXT_IPC_BASIC_TYPES_H_
-#define INCLUDE_PERFETTO_EXT_IPC_BASIC_TYPES_H_
-
-#include <stddef.h>
-#include <stdint.h>
-#include <sys/types.h>
-
-// gen_amalgamated expanded: #include "perfetto/ext/base/utils.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/cpp_message_obj.h"
-
-namespace perfetto {
-namespace ipc {
-
-using ProtoMessage = ::protozero::CppMessageObj;
-using ServiceID = uint32_t;
-using MethodID = uint32_t;
-using ClientID = uint64_t;
-using RequestID = uint64_t;
-
-#if PERFETTO_BUILDFLAG(PERFETTO_OS_WIN)
-// AF_UNIX on Windows is supported only on Windows 10 from build 17063.
-// Also it doesn't bring major advantages compared to a TCP socket.
-// See go/perfetto-win .
-constexpr bool kUseTCPSocket = true;
-#else
-// On Android, Linux, Mac use a AF_UNIX socket.
-constexpr bool kUseTCPSocket = false;
-#endif
-
-// This determines the maximum size allowed for an IPC message. Trying to send
-// or receive a larger message will hit DCHECK(s) and auto-disconnect.
-constexpr size_t kIPCBufferSize = 128 * 1024;
-
-constexpr uid_t kInvalidUid = static_cast<uid_t>(-1);
-
-}  // namespace ipc
-}  // namespace perfetto
-
-#endif  // INCLUDE_PERFETTO_EXT_IPC_BASIC_TYPES_H_
-/*
- * Copyright (C) 2017 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef SRC_IPC_BUFFERED_FRAME_DESERIALIZER_H_
-#define SRC_IPC_BUFFERED_FRAME_DESERIALIZER_H_
-
-#include <stddef.h>
-
-#include <list>
-#include <memory>
-
-// gen_amalgamated expanded: #include "perfetto/ext/base/paged_memory.h"
-// gen_amalgamated expanded: #include "perfetto/ext/base/utils.h"
-// gen_amalgamated expanded: #include "perfetto/ext/ipc/basic_types.h"
-
-namespace perfetto {
-
-namespace protos {
-namespace gen {
-class IPCFrame;
-}  // namespace gen
-}  // namespace protos
-
-namespace ipc {
-
-using Frame = ::perfetto::protos::gen::IPCFrame;
-
-// Deserializes incoming frames, taking care of buffering and tokenization.
-// Used by both host and client to decode incoming frames.
-//
-// Which problem does it solve?
-// ----------------------------
-// The wire protocol is as follows:
-// [32-bit frame size][proto-encoded Frame], e.g:
-// [06 00 00 00][00 11 22 33 44 55 66]
-// [02 00 00 00][AA BB]
-// [04 00 00 00][CC DD EE FF]
-// However, given that the socket works in SOCK_STREAM mode, the recv() calls
-// might see the following:
-// 06 00 00
-// 00 00 11 22 33 44 55
-// 66 02 00 00 00 ...
-// This class takes care of buffering efficiently the data received, without
-// making any assumption on how the incoming data will be chunked by the socket.
-// For instance, it is possible that a recv() doesn't produce any frame (because
-// it received only a part of the frame) or produces more than one frame.
-//
-// Usage
-// -----
-// Both host and client use this as follows:
-//
-// auto buf = rpc_frame_decoder.BeginReceive();
-// size_t rsize = socket.recv(buf.first, buf.second);
-// rpc_frame_decoder.EndReceive(rsize);
-// while (Frame frame = rpc_frame_decoder.PopNextFrame()) {
-//   ... process |frame|
-// }
-//
-// Design goals:
-// -------------
-// - Optimize for the realistic case of each recv() receiving one or more
-//   whole frames. In this case no memmove is performed.
-// - Guarantee that frames lay in a virtually contiguous memory area.
-//   This allows to use the protobuf-lite deserialization API (scattered
-//   deserialization is supported only by libprotobuf-full).
-// - Put a hard boundary to the size of the incoming buffer. This is to prevent
-//   that a malicious sends an abnormally large frame and OOMs us.
-// - Simplicity: just use a linear mmap region. No reallocations or scattering.
-//   Takes care of madvise()-ing unused memory.
-
-class BufferedFrameDeserializer {
- public:
-  struct ReceiveBuffer {
-    char* data;
-    size_t size;
-  };
-
-  // |max_capacity| is overridable only for tests.
-  explicit BufferedFrameDeserializer(size_t max_capacity = kIPCBufferSize);
-  ~BufferedFrameDeserializer();
-
-  // This function doesn't really belong here as it does Serialization, unlike
-  // the rest of this class. However it is so small and has so many dependencies
-  // in common that doesn't justify having its own class.
-  static std::string Serialize(const Frame&);
-
-  // Returns a buffer that can be passed to recv(). The buffer is deliberately
-  // not initialized.
-  ReceiveBuffer BeginReceive();
-
-  // Must be called soon after BeginReceive().
-  // |recv_size| is the number of valid bytes that have been written into the
-  // buffer previously returned by BeginReceive() (the return value of recv()).
-  // Returns false if a header > |max_capacity| is received, in which case the
-  // caller is expected to shutdown the socket and terminate the ipc.
-  bool EndReceive(size_t recv_size) PERFETTO_WARN_UNUSED_RESULT;
-
-  // Decodes and returns the next decoded frame in the buffer if any, nullptr
-  // if no further frames have been decoded.
-  std::unique_ptr<Frame> PopNextFrame();
-
-  size_t capacity() const { return capacity_; }
-  size_t size() const { return size_; }
-
- private:
-  BufferedFrameDeserializer(const BufferedFrameDeserializer&) = delete;
-  BufferedFrameDeserializer& operator=(const BufferedFrameDeserializer&) =
-      delete;
-
-  // If a valid frame is decoded it is added to |decoded_frames_|.
-  void DecodeFrame(const char*, size_t);
-
-  char* buf() { return reinterpret_cast<char*>(buf_.Get()); }
-
-  base::PagedMemory buf_;
-  const size_t capacity_ = 0;  // sizeof(|buf_|).
-
-  // THe number of bytes in |buf_| that contain valid data (as a result of
-  // EndReceive()). This is always <= |capacity_|.
-  size_t size_ = 0;
-
-  std::list<std::unique_ptr<Frame>> decoded_frames_;
-};
-
-}  // namespace ipc
-}  // namespace perfetto
-
-#endif  // SRC_IPC_BUFFERED_FRAME_DESERIALIZER_H_
-/*
- * Copyright (C) 2017 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-// gen_amalgamated expanded: #include "src/ipc/buffered_frame_deserializer.h"
-
-#include <inttypes.h>
-
-#include <algorithm>
-#include <type_traits>
-#include <utility>
-
-// gen_amalgamated expanded: #include "perfetto/base/logging.h"
-// gen_amalgamated expanded: #include "perfetto/ext/base/utils.h"
-
-// gen_amalgamated expanded: #include "protos/perfetto/ipc/wire_protocol.gen.h"
-
-namespace perfetto {
-namespace ipc {
-
-namespace {
-
-// The header is just the number of bytes of the Frame protobuf message.
-constexpr size_t kHeaderSize = sizeof(uint32_t);
-}  // namespace
-
-BufferedFrameDeserializer::BufferedFrameDeserializer(size_t max_capacity)
-    : capacity_(max_capacity) {
-  PERFETTO_CHECK(max_capacity % base::GetSysPageSize() == 0);
-  PERFETTO_CHECK(max_capacity >= base::GetSysPageSize());
-}
-
-BufferedFrameDeserializer::~BufferedFrameDeserializer() = default;
-
-BufferedFrameDeserializer::ReceiveBuffer
-BufferedFrameDeserializer::BeginReceive() {
-  // Upon the first recv initialize the buffer to the max message size but
-  // release the physical memory for all but the first page. The kernel will
-  // automatically give us physical pages back as soon as we page-fault on them.
-  if (!buf_.IsValid()) {
-    PERFETTO_DCHECK(size_ == 0);
-    // TODO(eseckler): Don't commit all of the buffer at once on Windows.
-    buf_ = base::PagedMemory::Allocate(capacity_);
-
-    // Surely we are going to use at least the first page, but we may not need
-    // the rest for a bit.
-    const auto page_size = base::GetSysPageSize();
-    buf_.AdviseDontNeed(buf() + page_size, capacity_ - page_size);
-  }
-
-  PERFETTO_CHECK(capacity_ > size_);
-  return ReceiveBuffer{buf() + size_, capacity_ - size_};
-}
-
-bool BufferedFrameDeserializer::EndReceive(size_t recv_size) {
-  const auto page_size = base::GetSysPageSize();
-  PERFETTO_CHECK(recv_size + size_ <= capacity_);
-  size_ += recv_size;
-
-  // At this point the contents buf_ can contain:
-  // A) Only a fragment of the header (the size of the frame). E.g.,
-  //    03 00 00 (the header is 4 bytes, one is missing).
-  //
-  // B) A header and a part of the frame. E.g.,
-  //     05 00 00 00         11 22 33
-  //    [ header, size=5 ]  [ Partial frame ]
-  //
-  // C) One or more complete header+frame. E.g.,
-  //     05 00 00 00         11 22 33 44 55   03 00 00 00        AA BB CC
-  //    [ header, size=5 ]  [ Whole frame ]  [ header, size=3 ] [ Whole frame ]
-  //
-  // D) Some complete header+frame(s) and a partial header or frame (C + A/B).
-  //
-  // C Is the more likely case and the one we are optimizing for. A, B, D can
-  // happen because of the streaming nature of the socket.
-  // The invariant of this function is that, when it returns, buf_ is either
-  // empty (we drained all the complete frames) or starts with the header of the
-  // next, still incomplete, frame.
-
-  size_t consumed_size = 0;
-  for (;;) {
-    if (size_ < consumed_size + kHeaderSize)
-      break;  // Case A, not enough data to read even the header.
-
-    // Read the header into |payload_size|.
-    uint32_t payload_size = 0;
-    const char* rd_ptr = buf() + consumed_size;
-    memcpy(base::AssumeLittleEndian(&payload_size), rd_ptr, kHeaderSize);
-
-    // Saturate the |payload_size| to prevent overflows. The > capacity_ check
-    // below will abort the parsing.
-    size_t next_frame_size =
-        std::min(static_cast<size_t>(payload_size), capacity_);
-    next_frame_size += kHeaderSize;
-    rd_ptr += kHeaderSize;
-
-    if (size_ < consumed_size + next_frame_size) {
-      // Case B. We got the header but not the whole frame.
-      if (next_frame_size > capacity_) {
-        // The caller is expected to shut down the socket and give up at this
-        // point. If it doesn't do that and insists going on at some point it
-        // will hit the capacity check in BeginReceive().
-        PERFETTO_LOG("IPC Frame too large (size %zu)", next_frame_size);
-        return false;
-      }
-      break;
-    }
-
-    // Case C. We got at least one header and whole frame.
-    DecodeFrame(rd_ptr, payload_size);
-    consumed_size += next_frame_size;
-  }
-
-  PERFETTO_DCHECK(consumed_size <= size_);
-  if (consumed_size > 0) {
-    // Shift out the consumed data from the buffer. In the typical case (C)
-    // there is nothing to shift really, just setting size_ = 0 is enough.
-    // Shifting is only for the (unlikely) case D.
-    size_ -= consumed_size;
-    if (size_ > 0) {
-      // Case D. We consumed some frames but there is a leftover at the end of
-      // the buffer. Shift out the consumed bytes, so that on the next round
-      // |buf_| starts with the header of the next unconsumed frame.
-      const char* move_begin = buf() + consumed_size;
-      PERFETTO_CHECK(move_begin > buf());
-      PERFETTO_CHECK(move_begin + size_ <= buf() + capacity_);
-      memmove(buf(), move_begin, size_);
-    }
-    // If we just finished decoding a large frame that used more than one page,
-    // release the extra memory in the buffer. Large frames should be quite
-    // rare.
-    if (consumed_size > page_size) {
-      size_t size_rounded_up = (size_ / page_size + 1) * page_size;
-      if (size_rounded_up < capacity_) {
-        char* madvise_begin = buf() + size_rounded_up;
-        const size_t madvise_size = capacity_ - size_rounded_up;
-        PERFETTO_CHECK(madvise_begin > buf() + size_);
-        PERFETTO_CHECK(madvise_begin + madvise_size <= buf() + capacity_);
-        buf_.AdviseDontNeed(madvise_begin, madvise_size);
-      }
-    }
-  }
-  // At this point |size_| == 0 for case C, > 0 for cases A, B, D.
-  return true;
-}
-
-std::unique_ptr<Frame> BufferedFrameDeserializer::PopNextFrame() {
-  if (decoded_frames_.empty())
-    return nullptr;
-  std::unique_ptr<Frame> frame = std::move(decoded_frames_.front());
-  decoded_frames_.pop_front();
-  return frame;
-}
-
-void BufferedFrameDeserializer::DecodeFrame(const char* data, size_t size) {
-  if (size == 0)
-    return;
-  std::unique_ptr<Frame> frame(new Frame);
-  if (frame->ParseFromArray(data, size))
-    decoded_frames_.push_back(std::move(frame));
-}
-
-// static
-std::string BufferedFrameDeserializer::Serialize(const Frame& frame) {
-  std::vector<uint8_t> payload = frame.SerializeAsArray();
-  const uint32_t payload_size = static_cast<uint32_t>(payload.size());
-  std::string buf;
-  buf.resize(kHeaderSize + payload_size);
-  memcpy(&buf[0], base::AssumeLittleEndian(&payload_size), kHeaderSize);
-  memcpy(&buf[kHeaderSize], payload.data(), payload.size());
-  return buf;
-}
-
-}  // namespace ipc
-}  // namespace perfetto
-// gen_amalgamated begin source: src/ipc/deferred.cc
-// gen_amalgamated begin header: include/perfetto/ext/ipc/deferred.h
-// gen_amalgamated begin header: include/perfetto/ext/ipc/async_result.h
-/*
- * Copyright (C) 2017 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef INCLUDE_PERFETTO_EXT_IPC_ASYNC_RESULT_H_
-#define INCLUDE_PERFETTO_EXT_IPC_ASYNC_RESULT_H_
-
-#include <memory>
-#include <type_traits>
-#include <utility>
-
-// gen_amalgamated expanded: #include "perfetto/ext/ipc/basic_types.h"
-
-namespace perfetto {
-namespace ipc {
-
-// Wraps the result of an asynchronous invocation. This is the equivalent of a
-// std::pair<unique_ptr<T>, bool> with syntactic sugar. It is used as callback
-// argument by Deferred<T>. T is a ProtoMessage subclass (i.e. generated .pb.h).
-template <typename T>
-class AsyncResult {
- public:
-  static AsyncResult Create() {
-    return AsyncResult(std::unique_ptr<T>(new T()));
-  }
-
-  AsyncResult(std::unique_ptr<T> msg = nullptr,
-              bool has_more = false,
-              int fd = -1)
-      : msg_(std::move(msg)), has_more_(has_more), fd_(fd) {
-    static_assert(std::is_base_of<ProtoMessage, T>::value, "T->ProtoMessage");
-  }
-  AsyncResult(AsyncResult&&) noexcept = default;
-  AsyncResult& operator=(AsyncResult&&) = default;
-
-  bool success() const { return !!msg_; }
-  explicit operator bool() const { return success(); }
-
-  bool has_more() const { return has_more_; }
-  void set_has_more(bool has_more) { has_more_ = has_more; }
-
-  void set_msg(std::unique_ptr<T> msg) { msg_ = std::move(msg); }
-  T* release_msg() { return msg_.release(); }
-  T* operator->() { return msg_.get(); }
-  T& operator*() { return *msg_; }
-
-  void set_fd(int fd) { fd_ = fd; }
-  int fd() const { return fd_; }
-
- private:
-  std::unique_ptr<T> msg_;
-  bool has_more_ = false;
-
-  // Optional. Only for messages that convey a file descriptor, for sharing
-  // memory across processes.
-  int fd_ = -1;
-};
-
-}  // namespace ipc
-}  // namespace perfetto
-
-#endif  // INCLUDE_PERFETTO_EXT_IPC_ASYNC_RESULT_H_
-/*
- * Copyright (C) 2017 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef INCLUDE_PERFETTO_EXT_IPC_DEFERRED_H_
-#define INCLUDE_PERFETTO_EXT_IPC_DEFERRED_H_
-
-#include <functional>
-#include <memory>
-#include <utility>
-
-// gen_amalgamated expanded: #include "perfetto/ext/ipc/async_result.h"
-// gen_amalgamated expanded: #include "perfetto/ext/ipc/basic_types.h"
-
-namespace perfetto {
-namespace ipc {
-
-// This class is a wrapper for a callback handling async results.
-// The problem this is solving is the following: For each result argument of the
-// methods generated from the .proto file:
-// - The client wants to see something on which it can Bind() a callback, which
-//   is invoked asynchronously once reply is received from the host.
-// - The host wants to expose something to user code that implements the IPC
-//   methods to allow them to provide an asynchronous reply back to the client.
-//   Eventually even more than once, for the case streaming replies.
-//
-// In both cases we want to make sure that callbacks don't get lost along the
-// way. To address this, this class will automatically reject the callbacks
-// if they are not resolved at destructor time (or the object is std::move()'d).
-//
-// The client is supposed to use this class as follows:
-//   class GreeterProxy {
-//      void SayHello(const HelloRequest&, Deferred<HelloReply> reply)
-//   }
-//  ...
-//  Deferred<HelloReply> reply;
-//  reply.Bind([] (AsyncResult<HelloReply> reply) {
-//    std::cout << reply.success() ? reply->message : "failure";
-//  });
-//  host_proxy_instance.SayHello(req, std::move(reply));
-//
-// The host instead is supposed to use this as follows:
-//   class GreeterImpl : public Greeter {
-//     void SayHello(const HelloRequest& req, Deferred<HelloReply> reply) {
-//        AsyncResult<HelloReply> reply = AsyncResult<HelloReply>::Create();
-//        reply->set_greeting("Hello " + req.name)
-//        reply.Resolve(std::move(reply));
-//     }
-//   }
-// Or for more complex cases, the deferred object can be std::move()'d outside
-// and the reply can continue asynchronously later.
-
-template <typename T>
-class Deferred;
-
-class DeferredBase {
- public:
-  explicit DeferredBase(
-      std::function<void(AsyncResult<ProtoMessage>)> callback = nullptr);
-
-  template <typename T>
-  explicit DeferredBase(Deferred<T> other)
-      : callback_(std::move(other.callback_)) {}
-
-  ~DeferredBase();
-  DeferredBase(DeferredBase&&) noexcept;
-  DeferredBase& operator=(DeferredBase&&);
-  void Bind(std::function<void(AsyncResult<ProtoMessage>)> callback);
-  bool IsBound() const;
-  void Resolve(AsyncResult<ProtoMessage>);
-  void Reject();
-
- protected:
-  template <typename T>
-  friend class Deferred;
-  void Move(DeferredBase&);
-
-  std::function<void(AsyncResult<ProtoMessage>)> callback_;
-};
-
-template <typename T>  // T : ProtoMessage subclass
-class Deferred : public DeferredBase {
- public:
-  explicit Deferred(std::function<void(AsyncResult<T>)> callback = nullptr) {
-    Bind(std::move(callback));
-  }
-
-  // This move constructor (and the similar one in DeferredBase) is meant to be
-  // called only by the autogenerated code. The caller has to guarantee that the
-  // moved-from and moved-to types match. The behavior is otherwise undefined.
-  explicit Deferred(DeferredBase&& other) {
-    callback_ = std::move(other.callback_);
-    other.callback_ = nullptr;
-  }
-
-  void Bind(std::function<void(AsyncResult<T>)> callback) {
-    if (!callback)
-      return;
-
-    // Here we need a callback adapter to downcast the callback to a generic
-    // callback that takes an AsyncResult<ProtoMessage>, so that it can be
-    // stored in the base class |callback_|.
-    auto callback_adapter = [callback](
-                                AsyncResult<ProtoMessage> async_result_base) {
-      // Upcast the async_result from <ProtoMessage> -> <T : ProtoMessage>.
-      static_assert(std::is_base_of<ProtoMessage, T>::value, "T:ProtoMessage");
-      AsyncResult<T> async_result(
-          std::unique_ptr<T>(static_cast<T*>(async_result_base.release_msg())),
-          async_result_base.has_more(), async_result_base.fd());
-      callback(std::move(async_result));
-    };
-    DeferredBase::Bind(callback_adapter);
-  }
-
-  // If no more messages are expected, |callback_| is released.
-  void Resolve(AsyncResult<T> async_result) {
-    // Convert the |async_result| to the generic base one (T -> ProtoMessage).
-    AsyncResult<ProtoMessage> async_result_base(
-        std::unique_ptr<ProtoMessage>(async_result.release_msg()),
-        async_result.has_more(), async_result.fd());
-    DeferredBase::Resolve(std::move(async_result_base));
-  }
-};
-
-}  // namespace ipc
-}  // namespace perfetto
-
-#endif  // INCLUDE_PERFETTO_EXT_IPC_DEFERRED_H_
-/*
- * Copyright (C) 2017 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-// gen_amalgamated expanded: #include "perfetto/ext/ipc/deferred.h"
-
-// gen_amalgamated expanded: #include "perfetto/base/logging.h"
-// gen_amalgamated expanded: #include "perfetto/ext/base/utils.h"
-
-namespace perfetto {
-namespace ipc {
-
-DeferredBase::DeferredBase(
-    std::function<void(AsyncResult<ProtoMessage>)> callback)
-    : callback_(std::move(callback)) {}
-
-DeferredBase::~DeferredBase() {
-  if (callback_)
-    Reject();
-}
-
-// Can't just use "= default" here because the default move operator for
-// std::function doesn't necessarily swap and hence can leave a copy of the
-// bind state around, which is undesirable.
-DeferredBase::DeferredBase(DeferredBase&& other) noexcept {
-  Move(other);
-}
-
-DeferredBase& DeferredBase::operator=(DeferredBase&& other) {
-  if (callback_)
-    Reject();
-  Move(other);
-  return *this;
-}
-
-void DeferredBase::Move(DeferredBase& other) {
-  callback_ = std::move(other.callback_);
-  other.callback_ = nullptr;
-}
-
-void DeferredBase::Bind(
-    std::function<void(AsyncResult<ProtoMessage>)> callback) {
-  callback_ = std::move(callback);
-}
-
-bool DeferredBase::IsBound() const {
-  return !!callback_;
-}
-
-void DeferredBase::Resolve(AsyncResult<ProtoMessage> async_result) {
-  if (!callback_) {
-    PERFETTO_DFATAL("No callback set.");
-    return;
-  }
-  bool has_more = async_result.has_more();
-  callback_(std::move(async_result));
-  if (!has_more)
-    callback_ = nullptr;
-}
-
-// Resolves with a nullptr |msg_|, signalling failure to |callback_|.
-void DeferredBase::Reject() {
-  Resolve(AsyncResult<ProtoMessage>());
-}
-
-}  // namespace ipc
-}  // namespace perfetto
-// gen_amalgamated begin source: src/ipc/virtual_destructors.cc
-// gen_amalgamated begin header: include/perfetto/ext/ipc/client.h
-/*
- * Copyright (C) 2017 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef INCLUDE_PERFETTO_EXT_IPC_CLIENT_H_
-#define INCLUDE_PERFETTO_EXT_IPC_CLIENT_H_
-
-#include <functional>
-#include <memory>
-
-// gen_amalgamated expanded: #include "perfetto/ext/base/scoped_file.h"
-// gen_amalgamated expanded: #include "perfetto/ext/base/unix_socket.h"
-// gen_amalgamated expanded: #include "perfetto/ext/base/weak_ptr.h"
-// gen_amalgamated expanded: #include "perfetto/ext/ipc/basic_types.h"
-
-namespace perfetto {
-
-namespace base {
-class TaskRunner;
-}  // namespace base
-
-namespace ipc {
-class ServiceProxy;
-
-// The client-side class that talks to the host over the socket and multiplexes
-// requests coming from the various autogenerated ServiceProxy stubs.
-// This is meant to be used by the user code as follows:
-// auto client = Client::CreateInstance("socket_name", task_runner);
-// std::unique_ptr<GreeterService> svc(new GreeterService());
-// client.BindService(svc);
-// svc.OnConnect([] () {
-//    svc.SayHello(..., ...);
-// });
-class Client {
- public:
-  // struct ConnArgs is used for creating a client in 2 connection modes:
-  // 1. Connect using a socket name with the option to retry the connection on
-  //    connection failure.
-  // 2. Adopt a connected socket.
-  struct ConnArgs {
-    ConnArgs(const char* sock_name, bool sock_retry)
-        : socket_name(sock_name), retry(sock_retry) {}
-    explicit ConnArgs(base::ScopedSocketHandle sock_fd)
-        : socket_fd(std::move(sock_fd)) {}
-
-    // Disallow copy. Only supports move.
-    ConnArgs(const ConnArgs& other) = delete;
-    ConnArgs(ConnArgs&& other) = default;
-
-    base::ScopedSocketHandle socket_fd;
-    const char* socket_name = nullptr;
-    bool retry = false;  // Only for connecting with |socket_name|.
-  };
-
-  static std::unique_ptr<Client> CreateInstance(ConnArgs, base::TaskRunner*);
-  virtual ~Client();
-
-  virtual void BindService(base::WeakPtr<ServiceProxy>) = 0;
-
-  // There is no need to call this method explicitly. Destroying the
-  // ServiceProxy instance is sufficient and will automatically unbind it. This
-  // method is exposed only for the ServiceProxy destructor.
-  virtual void UnbindService(ServiceID) = 0;
-
-  // Returns (with move semantics) the last file descriptor received on the IPC
-  // channel. No buffering is performed: if a service sends two file descriptors
-  // and the caller doesn't read them immediately, the first one will be
-  // automatically closed when the second is received (and will hit a DCHECK in
-  // debug builds).
-  virtual base::ScopedFile TakeReceivedFD() = 0;
-};
-
-}  // namespace ipc
-}  // namespace perfetto
-
-#endif  // INCLUDE_PERFETTO_EXT_IPC_CLIENT_H_
-// gen_amalgamated begin header: include/perfetto/ext/ipc/host.h
-/*
- * Copyright (C) 2017 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef INCLUDE_PERFETTO_EXT_IPC_HOST_H_
-#define INCLUDE_PERFETTO_EXT_IPC_HOST_H_
-
-#include <memory>
-
-// gen_amalgamated expanded: #include "perfetto/ext/base/scoped_file.h"
-// gen_amalgamated expanded: #include "perfetto/ext/base/unix_socket.h"
-// gen_amalgamated expanded: #include "perfetto/ext/ipc/basic_types.h"
-
-namespace perfetto {
-
-namespace base {
-class TaskRunner;
-}  // namespace base
-
-namespace ipc {
-
-class Service;
-
-// The host-side of the IPC layer. This class acts as a registry and request
-// dispatcher. It listen on the UnixSocket |socket_name| for incoming requests
-// (coming Client instances) and dispatches their requests to the various
-// Services exposed.
-class Host {
- public:
-  // Creates an instance and starts listening on the given |socket_name|.
-  // Returns nullptr if listening on the socket fails.
-  static std::unique_ptr<Host> CreateInstance(const char* socket_name,
-                                              base::TaskRunner*);
-
-  // Like the above but takes a file descriptor to a pre-bound unix socket.
-  // Returns nullptr if listening on the socket fails.
-  static std::unique_ptr<Host> CreateInstance(base::ScopedSocketHandle,
-                                              base::TaskRunner*);
-
-  virtual ~Host();
-
-  // Registers a new service and makes it available to remote IPC peers.
-  // All the exposed Service instances will be destroyed when destroying the
-  // Host instance if ExposeService succeeds and returns true, or immediately
-  // after the call in case of failure.
-  // Returns true if the register has been successfully registered, false in
-  // case of errors (e.g., another service with the same name is already
-  // registered).
-  virtual bool ExposeService(std::unique_ptr<Service>) = 0;
-};
-
-}  // namespace ipc
-}  // namespace perfetto
-
-#endif  // INCLUDE_PERFETTO_EXT_IPC_HOST_H_
-// gen_amalgamated begin header: include/perfetto/ext/ipc/service.h
-// gen_amalgamated begin header: include/perfetto/ext/ipc/client_info.h
-/*
- * Copyright (C) 2017 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef INCLUDE_PERFETTO_EXT_IPC_CLIENT_INFO_H_
-#define INCLUDE_PERFETTO_EXT_IPC_CLIENT_INFO_H_
-
-// gen_amalgamated expanded: #include "perfetto/base/logging.h"
-// gen_amalgamated expanded: #include "perfetto/ext/base/utils.h"
-// gen_amalgamated expanded: #include "perfetto/ext/ipc/basic_types.h"
-
-namespace perfetto {
-namespace ipc {
-
-// Passed to Service(s) to identify remote clients.
-class ClientInfo {
- public:
-  ClientInfo() = default;
-  ClientInfo(ClientID client_id, uid_t uid)
-      : client_id_(client_id), uid_(uid) {}
-
-  bool operator==(const ClientInfo& other) const {
-    return (client_id_ == other.client_id_ && uid_ == other.uid_);
-  }
-  bool operator!=(const ClientInfo& other) const { return !(*this == other); }
-
-  // For map<> and other sorted containers.
-  bool operator<(const ClientInfo& other) const {
-    PERFETTO_DCHECK(client_id_ != other.client_id_ || *this == other);
-    return client_id_ < other.client_id_;
-  }
-
-  bool is_valid() const { return client_id_ != 0; }
-
-  // A monotonic counter.
-  ClientID client_id() const { return client_id_; }
-
-  // Posix User ID. Comes from the kernel, can be trusted.
-  uid_t uid() const { return uid_; }
-
- private:
-  ClientID client_id_ = 0;
-  uid_t uid_ = kInvalidUid;
-};
-
-}  // namespace ipc
-}  // namespace perfetto
-
-#endif  // INCLUDE_PERFETTO_EXT_IPC_CLIENT_INFO_H_
-/*
- * Copyright (C) 2017 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef INCLUDE_PERFETTO_EXT_IPC_SERVICE_H_
-#define INCLUDE_PERFETTO_EXT_IPC_SERVICE_H_
-
-// gen_amalgamated expanded: #include "perfetto/base/logging.h"
-// gen_amalgamated expanded: #include "perfetto/ext/base/scoped_file.h"
-// gen_amalgamated expanded: #include "perfetto/ext/ipc/client_info.h"
-
-namespace perfetto {
-namespace ipc {
-
-class ServiceDescriptor;
-
-// The base class for all the autogenerated host-side service interfaces.
-class Service {
- public:
-  virtual ~Service();
-
-  // Overridden by the auto-generated class. Provides the list of methods and
-  // the protobuf (de)serialization functions for their arguments.
-  virtual const ServiceDescriptor& GetDescriptor() = 0;
-
-  // Invoked when a remote client disconnects. Use client_info() to obtain
-  // details about the client that disconnected.
-  virtual void OnClientDisconnected() {}
-
-  // Returns the ClientInfo for the current IPC request. Returns an invalid
-  // ClientInfo if called outside the scope of an IPC method.
-  const ClientInfo& client_info() {
-    PERFETTO_DCHECK(client_info_.is_valid());
-    return client_info_;
-  }
-
-  base::ScopedFile TakeReceivedFD() {
-    if (received_fd_)
-      return std::move(*received_fd_);
-    return base::ScopedFile();
-  }
-
- private:
-  friend class HostImpl;
-  ClientInfo client_info_;
-  // This is a pointer because the received fd needs to remain owned by the
-  // ClientConnection, as we will provide it to all method invocations
-  // for that client until one of them calls Service::TakeReceivedFD.
-  //
-  // Different clients might have sent different FDs so this cannot be owned
-  // here.
-  //
-  // Note that this means that there can always only be one outstanding
-  // invocation per client that supplies an FD and the client needs to
-  // wait for this one to return before calling another one.
-  base::ScopedFile* received_fd_;
-};
-
-}  // namespace ipc
-}  // namespace perfetto
-
-#endif  // INCLUDE_PERFETTO_EXT_IPC_SERVICE_H_
-// gen_amalgamated begin header: include/perfetto/ext/ipc/service_proxy.h
-/*
- * Copyright (C) 2017 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef INCLUDE_PERFETTO_EXT_IPC_SERVICE_PROXY_H_
-#define INCLUDE_PERFETTO_EXT_IPC_SERVICE_PROXY_H_
-
-// gen_amalgamated expanded: #include "perfetto/ext/ipc/basic_types.h"
-
-#include <assert.h>
-
-#include <functional>
-#include <map>
-#include <memory>
-#include <string>
-
-// gen_amalgamated expanded: #include "perfetto/base/export.h"
-// gen_amalgamated expanded: #include "perfetto/ext/base/weak_ptr.h"
-// gen_amalgamated expanded: #include "perfetto/ext/ipc/deferred.h"
-
-namespace perfetto {
-namespace ipc {
-
-class Client;
-class ServiceDescriptor;
-
-// The base class for the client-side autogenerated stubs that forward method
-// invocations to the host. All the methods of this class are meant to be called
-// only by the autogenerated code.
-class PERFETTO_EXPORT ServiceProxy {
- public:
-  class EventListener {
-   public:
-    virtual ~EventListener();
-
-    // Called once after Client::BindService() if the ServiceProxy has been
-    // successfully bound to the host. It is possible to start sending IPC
-    // requests soon after this.
-    virtual void OnConnect() {}
-
-    // Called if the connection fails to be established or drops after having
-    // been established.
-    virtual void OnDisconnect() {}
-  };
-
-  // Guarantees that no callback will happen after this object has been
-  // destroyed. The caller has to guarantee that the |event_listener| stays
-  // alive at least as long as the ServiceProxy instance.
-  explicit ServiceProxy(EventListener*);
-  virtual ~ServiceProxy();
-
-  void InitializeBinding(base::WeakPtr<Client>,
-                         ServiceID,
-                         std::map<std::string, MethodID>);
-
-  // Called by the IPC methods in the autogenerated classes.
-  void BeginInvoke(const std::string& method_name,
-                   const ProtoMessage& request,
-                   DeferredBase reply,
-                   int fd = -1);
-
-  // Called by ClientImpl.
-  // |reply_args| == nullptr means request failure.
-  void EndInvoke(RequestID,
-                 std::unique_ptr<ProtoMessage> reply_arg,
-                 bool has_more);
-
-  // Called by ClientImpl.
-  void OnConnect(bool success);
-  void OnDisconnect();
-  bool connected() const { return service_id_ != 0; }
-
-  base::WeakPtr<ServiceProxy> GetWeakPtr() const;
-
-  // Implemented by the autogenerated class.
-  virtual const ServiceDescriptor& GetDescriptor() = 0;
-
- private:
-  base::WeakPtr<Client> client_;
-  ServiceID service_id_ = 0;
-  std::map<std::string, MethodID> remote_method_ids_;
-  std::map<RequestID, DeferredBase> pending_callbacks_;
-  EventListener* const event_listener_;
-  base::WeakPtrFactory<ServiceProxy> weak_ptr_factory_;  // Keep last.
-};
-
-}  // namespace ipc
-}  // namespace perfetto
-
-#endif  // INCLUDE_PERFETTO_EXT_IPC_SERVICE_PROXY_H_
-/*
- * Copyright (C) 2018 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-// gen_amalgamated expanded: #include "perfetto/ext/ipc/client.h"
-// gen_amalgamated expanded: #include "perfetto/ext/ipc/host.h"
-// gen_amalgamated expanded: #include "perfetto/ext/ipc/service.h"
-// gen_amalgamated expanded: #include "perfetto/ext/ipc/service_proxy.h"
-
-// This translation unit contains the definitions for the destructor of pure
-// virtual interfaces for the current build target. The alternative would be
-// introducing a one-liner .cc file for each pure virtual interface, which is
-// overkill. This is for compliance with -Wweak-vtables.
-
-namespace perfetto {
-namespace ipc {
-
-Client::~Client() = default;
-Host::~Host() = default;
-Service::~Service() = default;
-ServiceProxy::EventListener::~EventListener() = default;
-
-}  // namespace ipc
-}  // namespace perfetto
-// gen_amalgamated begin source: src/ipc/client_impl.cc
-// gen_amalgamated begin header: src/ipc/client_impl.h
-/*
- * Copyright (C) 2017 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef SRC_IPC_CLIENT_IMPL_H_
-#define SRC_IPC_CLIENT_IMPL_H_
-
-#include <list>
-#include <map>
-#include <memory>
-
-// gen_amalgamated expanded: #include "perfetto/base/task_runner.h"
-// gen_amalgamated expanded: #include "perfetto/ext/base/scoped_file.h"
-// gen_amalgamated expanded: #include "perfetto/ext/base/unix_socket.h"
-// gen_amalgamated expanded: #include "perfetto/ext/ipc/client.h"
-// gen_amalgamated expanded: #include "src/ipc/buffered_frame_deserializer.h"
-
-namespace perfetto {
-
-namespace protos {
-namespace gen {
-class IPCFrame_BindServiceReply;
-class IPCFrame_InvokeMethodReply;
-}  // namespace gen
-}  // namespace protos
-
-namespace base {
-class TaskRunner;
-}  // namespace base
-
-namespace ipc {
-
-class ServiceDescriptor;
-
-class ClientImpl : public Client, public base::UnixSocket::EventListener {
- public:
-  ClientImpl(ConnArgs, base::TaskRunner*);
-  ~ClientImpl() override;
-
-  // Client implementation.
-  void BindService(base::WeakPtr<ServiceProxy>) override;
-  void UnbindService(ServiceID) override;
-  base::ScopedFile TakeReceivedFD() override;
-
-  // base::UnixSocket::EventListener implementation.
-  void OnConnect(base::UnixSocket*, bool connected) override;
-  void OnDisconnect(base::UnixSocket*) override;
-  void OnDataAvailable(base::UnixSocket*) override;
-
-  RequestID BeginInvoke(ServiceID,
-                        const std::string& method_name,
-                        MethodID remote_method_id,
-                        const ProtoMessage& method_args,
-                        bool drop_reply,
-                        base::WeakPtr<ServiceProxy>,
-                        int fd = -1);
-
-  base::UnixSocket* GetUnixSocketForTesting() { return sock_.get(); }
-
- private:
-  struct QueuedRequest {
-    QueuedRequest();
-    int type = 0;  // From Frame::msg_case(), see wire_protocol.proto.
-    RequestID request_id = 0;
-    base::WeakPtr<ServiceProxy> service_proxy;
-
-    // Only for type == kMsgInvokeMethod.
-    std::string method_name;
-  };
-
-  ClientImpl(const ClientImpl&) = delete;
-  ClientImpl& operator=(const ClientImpl&) = delete;
-
-  void TryConnect();
-  bool SendFrame(const Frame&, int fd = -1);
-  void OnFrameReceived(const Frame&);
-  void OnBindServiceReply(QueuedRequest,
-                          const protos::gen::IPCFrame_BindServiceReply&);
-  void OnInvokeMethodReply(QueuedRequest,
-                           const protos::gen::IPCFrame_InvokeMethodReply&);
-
-  bool invoking_method_reply_ = false;
-  const char* socket_name_ = nullptr;
-  bool socket_retry_ = false;
-  uint32_t socket_backoff_ms_ = 0;
-  std::unique_ptr<base::UnixSocket> sock_;
-  base::TaskRunner* const task_runner_;
-  RequestID last_request_id_ = 0;
-  BufferedFrameDeserializer frame_deserializer_;
-  base::ScopedFile received_fd_;
-  std::map<RequestID, QueuedRequest> queued_requests_;
-  std::map<ServiceID, base::WeakPtr<ServiceProxy>> service_bindings_;
-
-  // Queue of calls to BindService() that happened before the socket connected.
-  std::list<base::WeakPtr<ServiceProxy>> queued_bindings_;
-
-  base::WeakPtrFactory<Client> weak_ptr_factory_;  // Keep last.
-};
-
-}  // namespace ipc
-}  // namespace perfetto
-
-#endif  // SRC_IPC_CLIENT_IMPL_H_
-// gen_amalgamated begin header: include/perfetto/ext/ipc/service_descriptor.h
-/*
- * Copyright (C) 2017 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef INCLUDE_PERFETTO_EXT_IPC_SERVICE_DESCRIPTOR_H_
-#define INCLUDE_PERFETTO_EXT_IPC_SERVICE_DESCRIPTOR_H_
-
-#include <functional>
-#include <string>
-#include <utility>
-#include <vector>
-
-// gen_amalgamated expanded: #include "perfetto/ext/ipc/basic_types.h"
-// gen_amalgamated expanded: #include "perfetto/ext/ipc/deferred.h"
-
-namespace perfetto {
-namespace ipc {
-
-class Service;
-
-// This is a pure data structure which holds factory methods and strings for the
-// services and their methods that get generated in the .h/.cc files.
-// Each autogenerated class has a GetDescriptor() method that returns one
-// instance of these and allows both client and hosts to map service and method
-// names to IDs and provide function pointers to the protobuf decoder fuctions.
-class ServiceDescriptor {
- public:
-  struct Method {
-    const char* name;
-
-    // DecoderFunc is pointer to a function that takes a string in input
-    // containing protobuf encoded data and returns a decoded protobuf message.
-    using DecoderFunc = std::unique_ptr<ProtoMessage> (*)(const std::string&);
-
-    // Function pointer to decode the request argument of the method.
-    DecoderFunc request_proto_decoder;
-
-    // Function pointer to decoded the reply argument of the method.
-    DecoderFunc reply_proto_decoder;
-
-    // Function pointer that dispatches the generic request to the corresponding
-    // method implementation.
-    using InvokerFunc = void (*)(Service*,
-                                 const ProtoMessage& /* request_args */,
-                                 DeferredBase /* deferred_reply */);
-    InvokerFunc invoker;
-  };
-
-  const char* service_name = nullptr;
-
-  // Note that methods order is not stable. Client and Host might have different
-  // method indexes, depending on their versions. The Client can't just rely
-  // on the indexes and has to keep a [string -> remote index] translation map.
-  std::vector<Method> methods;
-};
-
-}  // namespace ipc
-}  // namespace perfetto
-
-#endif  // INCLUDE_PERFETTO_EXT_IPC_SERVICE_DESCRIPTOR_H_
-/*
- * Copyright (C) 2017 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-// gen_amalgamated expanded: #include "src/ipc/client_impl.h"
-
-#include <fcntl.h>
-#include <inttypes.h>
-
-#include <utility>
-
-// gen_amalgamated expanded: #include "perfetto/base/task_runner.h"
-// gen_amalgamated expanded: #include "perfetto/ext/base/unix_socket.h"
-// gen_amalgamated expanded: #include "perfetto/ext/base/utils.h"
-// gen_amalgamated expanded: #include "perfetto/ext/ipc/service_descriptor.h"
-// gen_amalgamated expanded: #include "perfetto/ext/ipc/service_proxy.h"
-
-// gen_amalgamated expanded: #include "protos/perfetto/ipc/wire_protocol.gen.h"
-
-// TODO(primiano): Add ThreadChecker everywhere.
-
-// TODO(primiano): Add timeouts.
-
-namespace perfetto {
-namespace ipc {
-
-namespace {
-constexpr base::SockFamily kClientSockFamily =
-    kUseTCPSocket ? base::SockFamily::kInet : base::SockFamily::kUnix;
-}  // namespace
-
-// static
-std::unique_ptr<Client> Client::CreateInstance(ConnArgs conn_args,
-                                               base::TaskRunner* task_runner) {
-  std::unique_ptr<Client> client(
-      new ClientImpl(std::move(conn_args), task_runner));
-  return client;
-}
-
-ClientImpl::ClientImpl(ConnArgs conn_args, base::TaskRunner* task_runner)
-    : socket_name_(conn_args.socket_name),
-      socket_retry_(conn_args.retry),
-      task_runner_(task_runner),
-      weak_ptr_factory_(this) {
-  if (conn_args.socket_fd) {
-    // Create the client using a connected socket. This code path will never hit
-    // OnConnect().
-    sock_ = base::UnixSocket::AdoptConnected(
-        std::move(conn_args.socket_fd), this, task_runner_, kClientSockFamily,
-        base::SockType::kStream, base::SockPeerCredMode::kIgnore);
-  } else {
-    // Connect using the socket name.
-    TryConnect();
-  }
-}
-
-ClientImpl::~ClientImpl() {
-  // Ensure we are not destroyed in the middle of invoking a reply.
-  PERFETTO_DCHECK(!invoking_method_reply_);
-  OnDisconnect(
-      nullptr);  // The base::UnixSocket* ptr is not used in OnDisconnect().
-}
-
-void ClientImpl::TryConnect() {
-  PERFETTO_DCHECK(socket_name_);
-  sock_ = base::UnixSocket::Connect(socket_name_, this, task_runner_,
-                                    kClientSockFamily, base::SockType::kStream,
-                                    base::SockPeerCredMode::kIgnore);
-}
-
-void ClientImpl::BindService(base::WeakPtr<ServiceProxy> service_proxy) {
-  if (!service_proxy)
-    return;
-  if (!sock_->is_connected()) {
-    queued_bindings_.emplace_back(service_proxy);
-    return;
-  }
-  RequestID request_id = ++last_request_id_;
-  Frame frame;
-  frame.set_request_id(request_id);
-  Frame::BindService* req = frame.mutable_msg_bind_service();
-  const char* const service_name = service_proxy->GetDescriptor().service_name;
-  req->set_service_name(service_name);
-  if (!SendFrame(frame)) {
-    PERFETTO_DLOG("BindService(%s) failed", service_name);
-    return service_proxy->OnConnect(false /* success */);
-  }
-  QueuedRequest qr;
-  qr.type = Frame::kMsgBindServiceFieldNumber;
-  qr.request_id = request_id;
-  qr.service_proxy = service_proxy;
-  queued_requests_.emplace(request_id, std::move(qr));
-}
-
-void ClientImpl::UnbindService(ServiceID service_id) {
-  service_bindings_.erase(service_id);
-}
-
-RequestID ClientImpl::BeginInvoke(ServiceID service_id,
-                                  const std::string& method_name,
-                                  MethodID remote_method_id,
-                                  const ProtoMessage& method_args,
-                                  bool drop_reply,
-                                  base::WeakPtr<ServiceProxy> service_proxy,
-                                  int fd) {
-  RequestID request_id = ++last_request_id_;
-  Frame frame;
-  frame.set_request_id(request_id);
-  Frame::InvokeMethod* req = frame.mutable_msg_invoke_method();
-  req->set_service_id(service_id);
-  req->set_method_id(remote_method_id);
-  req->set_drop_reply(drop_reply);
-  req->set_args_proto(method_args.SerializeAsString());
-  if (!SendFrame(frame, fd)) {
-    PERFETTO_DLOG("BeginInvoke() failed while sending the frame");
-    return 0;
-  }
-  if (drop_reply)
-    return 0;
-  QueuedRequest qr;
-  qr.type = Frame::kMsgInvokeMethodFieldNumber;
-  qr.request_id = request_id;
-  qr.method_name = method_name;
-  qr.service_proxy = std::move(service_proxy);
-  queued_requests_.emplace(request_id, std::move(qr));
-  return request_id;
-}
-
-bool ClientImpl::SendFrame(const Frame& frame, int fd) {
-  // Serialize the frame into protobuf, add the size header, and send it.
-  std::string buf = BufferedFrameDeserializer::Serialize(frame);
-
-  // TODO(primiano): this should do non-blocking I/O. But then what if the
-  // socket buffer is full? We might want to either drop the request or throttle
-  // the send and PostTask the reply later? Right now we are making Send()
-  // blocking as a workaround. Propagate bakpressure to the caller instead.
-  bool res = sock_->Send(buf.data(), buf.size(), fd);
-  PERFETTO_CHECK(res || !sock_->is_connected());
-  return res;
-}
-
-void ClientImpl::OnConnect(base::UnixSocket*, bool connected) {
-  if (!connected && socket_retry_) {
-    socket_backoff_ms_ =
-        (socket_backoff_ms_ < 10000) ? socket_backoff_ms_ + 1000 : 30000;
-    PERFETTO_DLOG(
-        "Connection to traced's UNIX socket failed, retrying in %u seconds",
-        socket_backoff_ms_ / 1000);
-    auto weak_this = weak_ptr_factory_.GetWeakPtr();
-    task_runner_->PostDelayedTask(
-        [weak_this] {
-          if (weak_this)
-            static_cast<ClientImpl&>(*weak_this).TryConnect();
-        },
-        socket_backoff_ms_);
-    return;
-  }
-
-  // Drain the BindService() calls that were queued before establishing the
-  // connection with the host. Note that if we got disconnected, the call to
-  // OnConnect below might delete |this|, so move everything on the stack first.
-  auto queued_bindings = std::move(queued_bindings_);
-  queued_bindings_.clear();
-  for (base::WeakPtr<ServiceProxy>& service_proxy : queued_bindings) {
-    if (connected) {
-      BindService(service_proxy);
-    } else if (service_proxy) {
-      service_proxy->OnConnect(false /* success */);
-    }
-  }
-  // Don't access |this| below here.
-}
-
-void ClientImpl::OnDisconnect(base::UnixSocket*) {
-  for (const auto& it : service_bindings_) {
-    base::WeakPtr<ServiceProxy> service_proxy = it.second;
-    task_runner_->PostTask([service_proxy] {
-      if (service_proxy)
-        service_proxy->OnDisconnect();
-    });
-  }
-  service_bindings_.clear();
-  queued_bindings_.clear();
-}
-
-void ClientImpl::OnDataAvailable(base::UnixSocket*) {
-  size_t rsize;
-  do {
-    auto buf = frame_deserializer_.BeginReceive();
-    base::ScopedFile fd;
-    rsize = sock_->Receive(buf.data, buf.size, &fd);
-#if PERFETTO_BUILDFLAG(PERFETTO_OS_WIN)
-    PERFETTO_DCHECK(!fd);
-#else
-    if (fd) {
-      PERFETTO_DCHECK(!received_fd_);
-      int res = fcntl(*fd, F_SETFD, FD_CLOEXEC);
-      PERFETTO_DCHECK(res == 0);
-      received_fd_ = std::move(fd);
-    }
-#endif
-    if (!frame_deserializer_.EndReceive(rsize)) {
-      // The endpoint tried to send a frame that is way too large.
-      return sock_->Shutdown(true);  // In turn will trigger an OnDisconnect().
-      // TODO(fmayer): check this.
-    }
-  } while (rsize > 0);
-
-  while (std::unique_ptr<Frame> frame = frame_deserializer_.PopNextFrame())
-    OnFrameReceived(*frame);
-}
-
-void ClientImpl::OnFrameReceived(const Frame& frame) {
-  auto queued_requests_it = queued_requests_.find(frame.request_id());
-  if (queued_requests_it == queued_requests_.end()) {
-    PERFETTO_DLOG("OnFrameReceived(): got invalid request_id=%" PRIu64,
-                  static_cast<uint64_t>(frame.request_id()));
-    return;
-  }
-  QueuedRequest req = std::move(queued_requests_it->second);
-  queued_requests_.erase(queued_requests_it);
-
-  if (req.type == Frame::kMsgBindServiceFieldNumber &&
-      frame.has_msg_bind_service_reply()) {
-    return OnBindServiceReply(std::move(req), frame.msg_bind_service_reply());
-  }
-  if (req.type == Frame::kMsgInvokeMethodFieldNumber &&
-      frame.has_msg_invoke_method_reply()) {
-    return OnInvokeMethodReply(std::move(req), frame.msg_invoke_method_reply());
-  }
-  if (frame.has_msg_request_error()) {
-    PERFETTO_DLOG("Host error: %s", frame.msg_request_error().error().c_str());
-    return;
-  }
-
-  PERFETTO_DLOG(
-      "OnFrameReceived() request type=%d, received unknown frame in reply to "
-      "request_id=%" PRIu64,
-      req.type, static_cast<uint64_t>(frame.request_id()));
-}
-
-void ClientImpl::OnBindServiceReply(QueuedRequest req,
-                                    const Frame::BindServiceReply& reply) {
-  base::WeakPtr<ServiceProxy>& service_proxy = req.service_proxy;
-  if (!service_proxy)
-    return;
-  const char* svc_name = service_proxy->GetDescriptor().service_name;
-  if (!reply.success()) {
-    PERFETTO_DLOG("BindService(): unknown service_name=\"%s\"", svc_name);
-    return service_proxy->OnConnect(false /* success */);
-  }
-
-  auto prev_service = service_bindings_.find(reply.service_id());
-  if (prev_service != service_bindings_.end() && prev_service->second.get()) {
-    PERFETTO_DLOG(
-        "BindService(): Trying to bind service \"%s\" but another service "
-        "named \"%s\" is already bound with the same ID.",
-        svc_name, prev_service->second->GetDescriptor().service_name);
-    return service_proxy->OnConnect(false /* success */);
-  }
-
-  // Build the method [name] -> [remote_id] map.
-  std::map<std::string, MethodID> methods;
-  for (const auto& method : reply.methods()) {
-    if (method.name().empty() || method.id() <= 0) {
-      PERFETTO_DLOG("OnBindServiceReply(): invalid method \"%s\" -> %" PRIu64,
-                    method.name().c_str(), static_cast<uint64_t>(method.id()));
-      continue;
-    }
-    methods[method.name()] = method.id();
-  }
-  service_proxy->InitializeBinding(weak_ptr_factory_.GetWeakPtr(),
-                                   reply.service_id(), std::move(methods));
-  service_bindings_[reply.service_id()] = service_proxy;
-  service_proxy->OnConnect(true /* success */);
-}
-
-void ClientImpl::OnInvokeMethodReply(QueuedRequest req,
-                                     const Frame::InvokeMethodReply& reply) {
-  base::WeakPtr<ServiceProxy> service_proxy = req.service_proxy;
-  if (!service_proxy)
-    return;
-  std::unique_ptr<ProtoMessage> decoded_reply;
-  if (reply.success()) {
-    // If this becomes a hotspot, optimize by maintaining a dedicated hashtable.
-    for (const auto& method : service_proxy->GetDescriptor().methods) {
-      if (req.method_name == method.name) {
-        decoded_reply = method.reply_proto_decoder(reply.reply_proto());
-        break;
-      }
-    }
-  }
-  const RequestID request_id = req.request_id;
-  invoking_method_reply_ = true;
-  service_proxy->EndInvoke(request_id, std::move(decoded_reply),
-                           reply.has_more());
-  invoking_method_reply_ = false;
-
-  // If this is a streaming method and future replies will be resolved, put back
-  // the |req| with the callback into the set of active requests.
-  if (reply.has_more())
-    queued_requests_.emplace(request_id, std::move(req));
-}
-
-ClientImpl::QueuedRequest::QueuedRequest() = default;
-
-base::ScopedFile ClientImpl::TakeReceivedFD() {
-  return std::move(received_fd_);
-}
-
-}  // namespace ipc
-}  // namespace perfetto
-// gen_amalgamated begin source: src/ipc/service_proxy.cc
-/*
- * Copyright (C) 2017 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-// gen_amalgamated expanded: #include "perfetto/ext/ipc/service_proxy.h"
-
-#include <utility>
-
-// gen_amalgamated expanded: #include "perfetto/base/logging.h"
-// gen_amalgamated expanded: #include "perfetto/ext/base/weak_ptr.h"
-// gen_amalgamated expanded: #include "perfetto/ext/ipc/service_descriptor.h"
-// gen_amalgamated expanded: #include "src/ipc/client_impl.h"
-
-// gen_amalgamated expanded: #include "protos/perfetto/ipc/wire_protocol.gen.h"
-
-namespace perfetto {
-namespace ipc {
-
-ServiceProxy::ServiceProxy(EventListener* event_listener)
-    : event_listener_(event_listener), weak_ptr_factory_(this) {}
-
-ServiceProxy::~ServiceProxy() {
-  if (client_ && connected())
-    client_->UnbindService(service_id_);
-}
-
-void ServiceProxy::InitializeBinding(
-    base::WeakPtr<Client> client,
-    ServiceID service_id,
-    std::map<std::string, MethodID> remote_method_ids) {
-  client_ = std::move(client);
-  service_id_ = service_id;
-  remote_method_ids_ = std::move(remote_method_ids);
-}
-
-void ServiceProxy::BeginInvoke(const std::string& method_name,
-                               const ProtoMessage& request,
-                               DeferredBase reply,
-                               int fd) {
-  // |reply| will auto-resolve if it gets out of scope early.
-  if (!connected()) {
-    PERFETTO_DFATAL("Not connected.");
-    return;
-  }
-  if (!client_)
-    return;  // The Client object has been destroyed in the meantime.
-
-  auto remote_method_it = remote_method_ids_.find(method_name);
-  RequestID request_id = 0;
-  const bool drop_reply = !reply.IsBound();
-  if (remote_method_it != remote_method_ids_.end()) {
-    request_id =
-        static_cast<ClientImpl*>(client_.get())
-            ->BeginInvoke(service_id_, method_name, remote_method_it->second,
-                          request, drop_reply, weak_ptr_factory_.GetWeakPtr(),
-                          fd);
-  } else {
-    PERFETTO_DLOG("Cannot find method \"%s\" on the host", method_name.c_str());
-  }
-
-  // When passing |drop_reply| == true, the returned |request_id| should be 0.
-  PERFETTO_DCHECK(!drop_reply || !request_id);
-
-  if (!request_id)
-    return;
-  PERFETTO_DCHECK(pending_callbacks_.count(request_id) == 0);
-  pending_callbacks_.emplace(request_id, std::move(reply));
-}
-
-void ServiceProxy::EndInvoke(RequestID request_id,
-                             std::unique_ptr<ProtoMessage> result,
-                             bool has_more) {
-  auto callback_it = pending_callbacks_.find(request_id);
-  if (callback_it == pending_callbacks_.end()) {
-    // Either we are getting a reply for a method we never invoked, or we are
-    // getting a reply to a method marked drop_reply (that has been invoked
-    // without binding any callback in the Defererd response object).
-    PERFETTO_DFATAL("Unexpected reply received.");
-    return;
-  }
-  DeferredBase& reply_callback = callback_it->second;
-  AsyncResult<ProtoMessage> reply(std::move(result), has_more);
-  reply_callback.Resolve(std::move(reply));
-  if (!has_more)
-    pending_callbacks_.erase(callback_it);
-}
-
-void ServiceProxy::OnConnect(bool success) {
-  if (success) {
-    PERFETTO_DCHECK(service_id_);
-    return event_listener_->OnConnect();
-  }
-  return event_listener_->OnDisconnect();
-}
-
-void ServiceProxy::OnDisconnect() {
-  pending_callbacks_.clear();  // Will Reject() all the pending callbacks.
-  event_listener_->OnDisconnect();
-}
-
-base::WeakPtr<ServiceProxy> ServiceProxy::GetWeakPtr() const {
-  return weak_ptr_factory_.GetWeakPtr();
-}
-
-}  // namespace ipc
-}  // namespace perfetto
-// gen_amalgamated begin source: src/ipc/host_impl.cc
-// gen_amalgamated begin header: src/ipc/host_impl.h
-/*
- * Copyright (C) 2017 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef SRC_IPC_HOST_IMPL_H_
-#define SRC_IPC_HOST_IMPL_H_
-
-#include <map>
-#include <set>
-#include <string>
-#include <vector>
-
-// gen_amalgamated expanded: #include "perfetto/base/task_runner.h"
-// gen_amalgamated expanded: #include "perfetto/ext/base/thread_checker.h"
-// gen_amalgamated expanded: #include "perfetto/ext/base/unix_socket.h"
-// gen_amalgamated expanded: #include "perfetto/ext/ipc/deferred.h"
-// gen_amalgamated expanded: #include "perfetto/ext/ipc/host.h"
-// gen_amalgamated expanded: #include "src/ipc/buffered_frame_deserializer.h"
-
-namespace perfetto {
-namespace ipc {
-
-class HostImpl : public Host, public base::UnixSocket::EventListener {
- public:
-  HostImpl(const char* socket_name, base::TaskRunner*);
-  HostImpl(base::ScopedSocketHandle, base::TaskRunner*);
-  ~HostImpl() override;
-
-  // Host implementation.
-  bool ExposeService(std::unique_ptr<Service>) override;
-
-  // base::UnixSocket::EventListener implementation.
-  void OnNewIncomingConnection(base::UnixSocket*,
-                               std::unique_ptr<base::UnixSocket>) override;
-  void OnDisconnect(base::UnixSocket*) override;
-  void OnDataAvailable(base::UnixSocket*) override;
-
-  const base::UnixSocket* sock() const { return sock_.get(); }
-
- private:
-  // Owns the per-client receive buffer (BufferedFrameDeserializer).
-  struct ClientConnection {
-    ~ClientConnection();
-    ClientID id;
-    std::unique_ptr<base::UnixSocket> sock;
-    BufferedFrameDeserializer frame_deserializer;
-    base::ScopedFile received_fd;
-  };
-  struct ExposedService {
-    ExposedService(ServiceID, const std::string&, std::unique_ptr<Service>);
-    ~ExposedService();
-    ExposedService(ExposedService&&) noexcept;
-    ExposedService& operator=(ExposedService&&);
-
-    ServiceID id;
-    std::string name;
-    std::unique_ptr<Service> instance;
-  };
-
-  HostImpl(const HostImpl&) = delete;
-  HostImpl& operator=(const HostImpl&) = delete;
-
-  bool Initialize(const char* socket_name);
-  void OnReceivedFrame(ClientConnection*, const Frame&);
-  void OnBindService(ClientConnection*, const Frame&);
-  void OnInvokeMethod(ClientConnection*, const Frame&);
-  void ReplyToMethodInvocation(ClientID, RequestID, AsyncResult<ProtoMessage>);
-  const ExposedService* GetServiceByName(const std::string&);
-
-  static void SendFrame(ClientConnection*, const Frame&, int fd = -1);
-
-  base::TaskRunner* const task_runner_;
-  std::map<ServiceID, ExposedService> services_;
-  std::unique_ptr<base::UnixSocket> sock_;  // The listening socket.
-  std::map<ClientID, std::unique_ptr<ClientConnection>> clients_;
-  std::map<base::UnixSocket*, ClientConnection*> clients_by_socket_;
-  ServiceID last_service_id_ = 0;
-  ClientID last_client_id_ = 0;
-  PERFETTO_THREAD_CHECKER(thread_checker_)
-  base::WeakPtrFactory<HostImpl> weak_ptr_factory_;  // Keep last.
-};
-
-}  // namespace ipc
-}  // namespace perfetto
-
-#endif  // SRC_IPC_HOST_IMPL_H_
-/*
- * Copyright (C) 2017 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-// gen_amalgamated expanded: #include "src/ipc/host_impl.h"
-
-#include <inttypes.h>
-
-#include <algorithm>
-#include <utility>
-
-// gen_amalgamated expanded: #include "perfetto/base/task_runner.h"
-// gen_amalgamated expanded: #include "perfetto/ext/base/utils.h"
-// gen_amalgamated expanded: #include "perfetto/ext/ipc/service.h"
-// gen_amalgamated expanded: #include "perfetto/ext/ipc/service_descriptor.h"
-
-// gen_amalgamated expanded: #include "protos/perfetto/ipc/wire_protocol.gen.h"
-
-// TODO(primiano): put limits on #connections/uid and req. queue (b/69093705).
-
-namespace perfetto {
-namespace ipc {
-
-namespace {
-
-constexpr base::SockFamily kHostSockFamily =
-    kUseTCPSocket ? base::SockFamily::kInet : base::SockFamily::kUnix;
-
-uid_t GetPosixPeerUid(base::UnixSocket* sock) {
-#if PERFETTO_BUILDFLAG(PERFETTO_OS_WIN)
-  base::ignore_result(sock);
-  // Unsupported. Must be != kInvalidUid or the PacketValidator will fail.
-  return 0;
-#else
-  return sock->peer_uid_posix();
-#endif
-}
-
-}  // namespace
-
-// static
-std::unique_ptr<Host> Host::CreateInstance(const char* socket_name,
-                                           base::TaskRunner* task_runner) {
-  std::unique_ptr<HostImpl> host(new HostImpl(socket_name, task_runner));
-  if (!host->sock() || !host->sock()->is_listening())
-    return nullptr;
-  return std::unique_ptr<Host>(std::move(host));
-}
-
-// static
-std::unique_ptr<Host> Host::CreateInstance(base::ScopedSocketHandle socket_fd,
-                                           base::TaskRunner* task_runner) {
-  std::unique_ptr<HostImpl> host(
-      new HostImpl(std::move(socket_fd), task_runner));
-  if (!host->sock() || !host->sock()->is_listening())
-    return nullptr;
-  return std::unique_ptr<Host>(std::move(host));
-}
-
-HostImpl::HostImpl(base::ScopedSocketHandle socket_fd,
-                   base::TaskRunner* task_runner)
-    : task_runner_(task_runner), weak_ptr_factory_(this) {
-  PERFETTO_DCHECK_THREAD(thread_checker_);
-  sock_ = base::UnixSocket::Listen(std::move(socket_fd), this, task_runner_,
-                                   kHostSockFamily, base::SockType::kStream);
-}
-
-HostImpl::HostImpl(const char* socket_name, base::TaskRunner* task_runner)
-    : task_runner_(task_runner), weak_ptr_factory_(this) {
-  PERFETTO_DCHECK_THREAD(thread_checker_);
-  sock_ = base::UnixSocket::Listen(socket_name, this, task_runner_,
-                                   kHostSockFamily, base::SockType::kStream);
-  if (!sock_) {
-    PERFETTO_PLOG("Failed to create %s", socket_name);
-  }
-}
-
-HostImpl::~HostImpl() = default;
-
-bool HostImpl::ExposeService(std::unique_ptr<Service> service) {
-  PERFETTO_DCHECK_THREAD(thread_checker_);
-  const std::string& service_name = service->GetDescriptor().service_name;
-  if (GetServiceByName(service_name)) {
-    PERFETTO_DLOG("Duplicate ExposeService(): %s", service_name.c_str());
-    return false;
-  }
-  ServiceID sid = ++last_service_id_;
-  ExposedService exposed_service(sid, service_name, std::move(service));
-  services_.emplace(sid, std::move(exposed_service));
-  return true;
-}
-
-void HostImpl::OnNewIncomingConnection(
-    base::UnixSocket*,
-    std::unique_ptr<base::UnixSocket> new_conn) {
-  PERFETTO_DCHECK_THREAD(thread_checker_);
-  std::unique_ptr<ClientConnection> client(new ClientConnection());
-  ClientID client_id = ++last_client_id_;
-  clients_by_socket_[new_conn.get()] = client.get();
-  client->id = client_id;
-  client->sock = std::move(new_conn);
-  // Watchdog is 30 seconds, so set the socket timeout to 10 seconds.
-  client->sock->SetTxTimeout(10000);
-  clients_[client_id] = std::move(client);
-}
-
-void HostImpl::OnDataAvailable(base::UnixSocket* sock) {
-  PERFETTO_DCHECK_THREAD(thread_checker_);
-  auto it = clients_by_socket_.find(sock);
-  if (it == clients_by_socket_.end())
-    return;
-  ClientConnection* client = it->second;
-  BufferedFrameDeserializer& frame_deserializer = client->frame_deserializer;
-
-  size_t rsize;
-  do {
-    auto buf = frame_deserializer.BeginReceive();
-    base::ScopedFile fd;
-    rsize = client->sock->Receive(buf.data, buf.size, &fd);
-    if (fd) {
-      PERFETTO_DCHECK(!client->received_fd);
-      client->received_fd = std::move(fd);
-    }
-    if (!frame_deserializer.EndReceive(rsize))
-      return OnDisconnect(client->sock.get());
-  } while (rsize > 0);
-
-  for (;;) {
-    std::unique_ptr<Frame> frame = frame_deserializer.PopNextFrame();
-    if (!frame)
-      break;
-    OnReceivedFrame(client, *frame);
-  }
-}
-
-void HostImpl::OnReceivedFrame(ClientConnection* client,
-                               const Frame& req_frame) {
-  if (req_frame.has_msg_bind_service())
-    return OnBindService(client, req_frame);
-  if (req_frame.has_msg_invoke_method())
-    return OnInvokeMethod(client, req_frame);
-
-  PERFETTO_DLOG("Received invalid RPC frame from client %" PRIu64, client->id);
-  Frame reply_frame;
-  reply_frame.set_request_id(req_frame.request_id());
-  reply_frame.mutable_msg_request_error()->set_error("unknown request");
-  SendFrame(client, reply_frame);
-}
-
-void HostImpl::OnBindService(ClientConnection* client, const Frame& req_frame) {
-  // Binding a service doesn't do anything major. It just returns back the
-  // service id and its method map.
-  const Frame::BindService& req = req_frame.msg_bind_service();
-  Frame reply_frame;
-  reply_frame.set_request_id(req_frame.request_id());
-  auto* reply = reply_frame.mutable_msg_bind_service_reply();
-  const ExposedService* service = GetServiceByName(req.service_name());
-  if (service) {
-    reply->set_success(true);
-    reply->set_service_id(service->id);
-    uint32_t method_id = 1;  // method ids start at index 1.
-    for (const auto& desc_method : service->instance->GetDescriptor().methods) {
-      Frame::BindServiceReply::MethodInfo* method_info = reply->add_methods();
-      method_info->set_name(desc_method.name);
-      method_info->set_id(method_id++);
-    }
-  }
-  SendFrame(client, reply_frame);
-}
-
-void HostImpl::OnInvokeMethod(ClientConnection* client,
-                              const Frame& req_frame) {
-  const Frame::InvokeMethod& req = req_frame.msg_invoke_method();
-  Frame reply_frame;
-  RequestID request_id = req_frame.request_id();
-  reply_frame.set_request_id(request_id);
-  reply_frame.mutable_msg_invoke_method_reply()->set_success(false);
-  auto svc_it = services_.find(req.service_id());
-  if (svc_it == services_.end())
-    return SendFrame(client, reply_frame);  // |success| == false by default.
-
-  Service* service = svc_it->second.instance.get();
-  const ServiceDescriptor& svc = service->GetDescriptor();
-  const auto& methods = svc.methods;
-  const uint32_t method_id = req.method_id();
-  if (method_id == 0 || method_id > methods.size())
-    return SendFrame(client, reply_frame);
-
-  const ServiceDescriptor::Method& method = methods[method_id - 1];
-  std::unique_ptr<ProtoMessage> decoded_req_args(
-      method.request_proto_decoder(req.args_proto()));
-  if (!decoded_req_args)
-    return SendFrame(client, reply_frame);
-
-  Deferred<ProtoMessage> deferred_reply;
-  base::WeakPtr<HostImpl> host_weak_ptr = weak_ptr_factory_.GetWeakPtr();
-  ClientID client_id = client->id;
-
-  if (!req.drop_reply()) {
-    deferred_reply.Bind([host_weak_ptr, client_id,
-                         request_id](AsyncResult<ProtoMessage> reply) {
-      if (!host_weak_ptr)
-        return;  // The reply came too late, the HostImpl has gone.
-      host_weak_ptr->ReplyToMethodInvocation(client_id, request_id,
-                                             std::move(reply));
-    });
-  }
-
-  service->client_info_ =
-      ClientInfo(client->id, GetPosixPeerUid(client->sock.get()));
-  service->received_fd_ = &client->received_fd;
-  method.invoker(service, *decoded_req_args, std::move(deferred_reply));
-  service->received_fd_ = nullptr;
-  service->client_info_ = ClientInfo();
-}
-
-void HostImpl::ReplyToMethodInvocation(ClientID client_id,
-                                       RequestID request_id,
-                                       AsyncResult<ProtoMessage> reply) {
-  auto client_iter = clients_.find(client_id);
-  if (client_iter == clients_.end())
-    return;  // client has disconnected by the time we got the async reply.
-
-  ClientConnection* client = client_iter->second.get();
-  Frame reply_frame;
-  reply_frame.set_request_id(request_id);
-
-  // TODO(fmayer): add a test to guarantee that the reply is consumed within the
-  // same call stack and not kept around. ConsumerIPCService::OnTraceData()
-  // relies on this behavior.
-  auto* reply_frame_data = reply_frame.mutable_msg_invoke_method_reply();
-  reply_frame_data->set_has_more(reply.has_more());
-  if (reply.success()) {
-    std::string reply_proto = reply->SerializeAsString();
-    reply_frame_data->set_reply_proto(reply_proto);
-    reply_frame_data->set_success(true);
-  }
-  SendFrame(client, reply_frame, reply.fd());
-}
-
-// static
-void HostImpl::SendFrame(ClientConnection* client, const Frame& frame, int fd) {
-  std::string buf = BufferedFrameDeserializer::Serialize(frame);
-
-  // When a new Client connects in OnNewClientConnection we set a timeout on
-  // Send (see call to SetTxTimeout).
-  //
-  // The old behaviour was to do a blocking I/O call, which caused crashes from
-  // misbehaving producers (see b/169051440).
-  bool res = client->sock->Send(buf.data(), buf.size(), fd);
-  // If we timeout |res| will be false, but the UnixSocket will have called
-  // UnixSocket::ShutDown() and thus |is_connected()| is false.
-  PERFETTO_CHECK(res || !client->sock->is_connected());
-}
-
-void HostImpl::OnDisconnect(base::UnixSocket* sock) {
-  PERFETTO_DCHECK_THREAD(thread_checker_);
-  auto it = clients_by_socket_.find(sock);
-  if (it == clients_by_socket_.end())
-    return;
-  ClientID client_id = it->second->id;
-
-  ClientInfo client_info(client_id, GetPosixPeerUid(sock));
-  clients_by_socket_.erase(it);
-  PERFETTO_DCHECK(clients_.count(client_id));
-  clients_.erase(client_id);
-
-  for (const auto& service_it : services_) {
-    Service& service = *service_it.second.instance;
-    service.client_info_ = client_info;
-    service.OnClientDisconnected();
-    service.client_info_ = ClientInfo();
-  }
-}
-
-const HostImpl::ExposedService* HostImpl::GetServiceByName(
-    const std::string& name) {
-  // This could be optimized by using another map<name,ServiceID>. However this
-  // is used only by Bind/ExposeService that are quite rare (once per client
-  // connection and once per service instance), not worth it.
-  for (const auto& it : services_) {
-    if (it.second.name == name)
-      return &it.second;
-  }
-  return nullptr;
-}
-
-HostImpl::ExposedService::ExposedService(ServiceID id_,
-                                         const std::string& name_,
-                                         std::unique_ptr<Service> instance_)
-    : id(id_), name(name_), instance(std::move(instance_)) {}
-
-HostImpl::ExposedService::ExposedService(ExposedService&&) noexcept = default;
-HostImpl::ExposedService& HostImpl::ExposedService::operator=(
-    HostImpl::ExposedService&&) = default;
-HostImpl::ExposedService::~ExposedService() = default;
-
-HostImpl::ClientConnection::~ClientConnection() = default;
-
-}  // namespace ipc
-}  // namespace perfetto
-// gen_amalgamated begin source: gen/protos/perfetto/ipc/consumer_port.ipc.cc
-// gen_amalgamated begin header: gen/protos/perfetto/ipc/consumer_port.ipc.h
-// DO NOT EDIT. Autogenerated by Perfetto IPC
-#ifndef PERFETTO_PROTOS_PROTOS_PERFETTO_IPC_CONSUMER_PORT_PROTO_H_
-#define PERFETTO_PROTOS_PROTOS_PERFETTO_IPC_CONSUMER_PORT_PROTO_H_
-
-// gen_amalgamated expanded: #include "perfetto/ext/ipc/deferred.h"
-// gen_amalgamated expanded: #include "perfetto/ext/ipc/service.h"
-// gen_amalgamated expanded: #include "perfetto/ext/ipc/service_descriptor.h"
-// gen_amalgamated expanded: #include "perfetto/ext/ipc/service_proxy.h"
-
-// gen_amalgamated expanded: #include "protos/perfetto/ipc/consumer_port.gen.h"
-// gen_amalgamated expanded: #include "protos/perfetto/common/observable_events.gen.h"
-// gen_amalgamated expanded: #include "protos/perfetto/common/tracing_service_state.gen.h"
-// gen_amalgamated expanded: #include "protos/perfetto/common/tracing_service_capabilities.gen.h"
-// gen_amalgamated expanded: #include "protos/perfetto/common/trace_stats.gen.h"
-// gen_amalgamated expanded: #include "protos/perfetto/config/trace_config.gen.h"
-
-namespace perfetto {
-namespace protos {
-namespace gen {
-
-class ConsumerPort : public ::perfetto::ipc::Service {
- private:
-  static ::perfetto::ipc::ServiceDescriptor* NewDescriptor();
-
- public:
-  ~ConsumerPort() override;
-
-  static const ::perfetto::ipc::ServiceDescriptor& GetDescriptorStatic();
-
-  // Service implementation.
-  const ::perfetto::ipc::ServiceDescriptor& GetDescriptor() override;
-
-  // Methods from the .proto file
-  using DeferredEnableTracingResponse = ::perfetto::ipc::Deferred<EnableTracingResponse>;
-  virtual void EnableTracing(const EnableTracingRequest&, DeferredEnableTracingResponse) = 0;
-
-  using DeferredDisableTracingResponse = ::perfetto::ipc::Deferred<DisableTracingResponse>;
-  virtual void DisableTracing(const DisableTracingRequest&, DeferredDisableTracingResponse) = 0;
-
-  using DeferredReadBuffersResponse = ::perfetto::ipc::Deferred<ReadBuffersResponse>;
-  virtual void ReadBuffers(const ReadBuffersRequest&, DeferredReadBuffersResponse) = 0;
-
-  using DeferredFreeBuffersResponse = ::perfetto::ipc::Deferred<FreeBuffersResponse>;
-  virtual void FreeBuffers(const FreeBuffersRequest&, DeferredFreeBuffersResponse) = 0;
-
-  using DeferredFlushResponse = ::perfetto::ipc::Deferred<FlushResponse>;
-  virtual void Flush(const FlushRequest&, DeferredFlushResponse) = 0;
-
-  using DeferredStartTracingResponse = ::perfetto::ipc::Deferred<StartTracingResponse>;
-  virtual void StartTracing(const StartTracingRequest&, DeferredStartTracingResponse) = 0;
-
-  using DeferredChangeTraceConfigResponse = ::perfetto::ipc::Deferred<ChangeTraceConfigResponse>;
-  virtual void ChangeTraceConfig(const ChangeTraceConfigRequest&, DeferredChangeTraceConfigResponse) = 0;
-
-  using DeferredDetachResponse = ::perfetto::ipc::Deferred<DetachResponse>;
-  virtual void Detach(const DetachRequest&, DeferredDetachResponse) = 0;
-
-  using DeferredAttachResponse = ::perfetto::ipc::Deferred<AttachResponse>;
-  virtual void Attach(const AttachRequest&, DeferredAttachResponse) = 0;
-
-  using DeferredGetTraceStatsResponse = ::perfetto::ipc::Deferred<GetTraceStatsResponse>;
-  virtual void GetTraceStats(const GetTraceStatsRequest&, DeferredGetTraceStatsResponse) = 0;
-
-  using DeferredObserveEventsResponse = ::perfetto::ipc::Deferred<ObserveEventsResponse>;
-  virtual void ObserveEvents(const ObserveEventsRequest&, DeferredObserveEventsResponse) = 0;
-
-  using DeferredQueryServiceStateResponse = ::perfetto::ipc::Deferred<QueryServiceStateResponse>;
-  virtual void QueryServiceState(const QueryServiceStateRequest&, DeferredQueryServiceStateResponse) = 0;
-
-  using DeferredQueryCapabilitiesResponse = ::perfetto::ipc::Deferred<QueryCapabilitiesResponse>;
-  virtual void QueryCapabilities(const QueryCapabilitiesRequest&, DeferredQueryCapabilitiesResponse) = 0;
-
-  using DeferredSaveTraceForBugreportResponse = ::perfetto::ipc::Deferred<SaveTraceForBugreportResponse>;
-  virtual void SaveTraceForBugreport(const SaveTraceForBugreportRequest&, DeferredSaveTraceForBugreportResponse) = 0;
-
-};
-
-
-class ConsumerPortProxy : public ::perfetto::ipc::ServiceProxy {
- public:
-   explicit ConsumerPortProxy(::perfetto::ipc::ServiceProxy::EventListener*);
-   ~ConsumerPortProxy() override;
-
-  // ServiceProxy implementation.
-  const ::perfetto::ipc::ServiceDescriptor& GetDescriptor() override;
-
-  // Methods from the .proto file
-  using DeferredEnableTracingResponse = ::perfetto::ipc::Deferred<EnableTracingResponse>;
-  void EnableTracing(const EnableTracingRequest&, DeferredEnableTracingResponse, int fd = -1);
-
-  using DeferredDisableTracingResponse = ::perfetto::ipc::Deferred<DisableTracingResponse>;
-  void DisableTracing(const DisableTracingRequest&, DeferredDisableTracingResponse, int fd = -1);
-
-  using DeferredReadBuffersResponse = ::perfetto::ipc::Deferred<ReadBuffersResponse>;
-  void ReadBuffers(const ReadBuffersRequest&, DeferredReadBuffersResponse, int fd = -1);
-
-  using DeferredFreeBuffersResponse = ::perfetto::ipc::Deferred<FreeBuffersResponse>;
-  void FreeBuffers(const FreeBuffersRequest&, DeferredFreeBuffersResponse, int fd = -1);
-
-  using DeferredFlushResponse = ::perfetto::ipc::Deferred<FlushResponse>;
-  void Flush(const FlushRequest&, DeferredFlushResponse, int fd = -1);
-
-  using DeferredStartTracingResponse = ::perfetto::ipc::Deferred<StartTracingResponse>;
-  void StartTracing(const StartTracingRequest&, DeferredStartTracingResponse, int fd = -1);
-
-  using DeferredChangeTraceConfigResponse = ::perfetto::ipc::Deferred<ChangeTraceConfigResponse>;
-  void ChangeTraceConfig(const ChangeTraceConfigRequest&, DeferredChangeTraceConfigResponse, int fd = -1);
-
-  using DeferredDetachResponse = ::perfetto::ipc::Deferred<DetachResponse>;
-  void Detach(const DetachRequest&, DeferredDetachResponse, int fd = -1);
-
-  using DeferredAttachResponse = ::perfetto::ipc::Deferred<AttachResponse>;
-  void Attach(const AttachRequest&, DeferredAttachResponse, int fd = -1);
-
-  using DeferredGetTraceStatsResponse = ::perfetto::ipc::Deferred<GetTraceStatsResponse>;
-  void GetTraceStats(const GetTraceStatsRequest&, DeferredGetTraceStatsResponse, int fd = -1);
-
-  using DeferredObserveEventsResponse = ::perfetto::ipc::Deferred<ObserveEventsResponse>;
-  void ObserveEvents(const ObserveEventsRequest&, DeferredObserveEventsResponse, int fd = -1);
-
-  using DeferredQueryServiceStateResponse = ::perfetto::ipc::Deferred<QueryServiceStateResponse>;
-  void QueryServiceState(const QueryServiceStateRequest&, DeferredQueryServiceStateResponse, int fd = -1);
-
-  using DeferredQueryCapabilitiesResponse = ::perfetto::ipc::Deferred<QueryCapabilitiesResponse>;
-  void QueryCapabilities(const QueryCapabilitiesRequest&, DeferredQueryCapabilitiesResponse, int fd = -1);
-
-  using DeferredSaveTraceForBugreportResponse = ::perfetto::ipc::Deferred<SaveTraceForBugreportResponse>;
-  void SaveTraceForBugreport(const SaveTraceForBugreportRequest&, DeferredSaveTraceForBugreportResponse, int fd = -1);
-
-};
-
-}  // namespace perfetto
-}  // namespace protos
-}  // namespace gen
-
-#endif  // PERFETTO_PROTOS_PROTOS_PERFETTO_IPC_CONSUMER_PORT_PROTO_H_
-// gen_amalgamated begin header: include/perfetto/ext/ipc/codegen_helpers.h
-/*
- * Copyright (C) 2017 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-// This file is only meant to be included in autogenerated .cc files.
-
-#ifndef INCLUDE_PERFETTO_EXT_IPC_CODEGEN_HELPERS_H_
-#define INCLUDE_PERFETTO_EXT_IPC_CODEGEN_HELPERS_H_
-
-#include <memory>
-
-// gen_amalgamated expanded: #include "perfetto/ext/ipc/basic_types.h"
-// gen_amalgamated expanded: #include "perfetto/ext/ipc/deferred.h"
-// gen_amalgamated expanded: #include "perfetto/ext/ipc/service.h"
-
-// A templated protobuf message decoder. Returns nullptr in case of failure.
-template <typename T>
-::std::unique_ptr<::perfetto::ipc::ProtoMessage> _IPC_Decoder(
-    const std::string& proto_data) {
-  ::std::unique_ptr<::perfetto::ipc::ProtoMessage> msg(new T());
-  if (msg->ParseFromString(proto_data))
-    return msg;
-  return nullptr;
-}
-
-// Templated method dispatcher. Used to obtain a function pointer to a given
-// IPC method (Method) of a given service (TSvc) that can be invoked by the
-// host-side machinery starting from a generic Service pointer and a generic
-// ProtoMessage request argument.
-template <typename TSvc,    // Type of the actual Service subclass.
-          typename TReq,    // Type of the request argument.
-          typename TReply,  // Type of the reply argument.
-          void (TSvc::*Method)(const TReq&, ::perfetto::ipc::Deferred<TReply>)>
-void _IPC_Invoker(::perfetto::ipc::Service* s,
-                  const ::perfetto::ipc::ProtoMessage& req,
-                  ::perfetto::ipc::DeferredBase reply) {
-  (*static_cast<TSvc*>(s).*Method)(
-      static_cast<const TReq&>(req),
-      ::perfetto::ipc::Deferred<TReply>(::std::move(reply)));
-}
-
-#endif  // INCLUDE_PERFETTO_EXT_IPC_CODEGEN_HELPERS_H_
-// DO NOT EDIT. Autogenerated by Perfetto IPC
-// gen_amalgamated expanded: #include "protos/perfetto/ipc/consumer_port.ipc.h"
-// gen_amalgamated expanded: #include "perfetto/ext/ipc/codegen_helpers.h"
-
-#include <memory>
-
-namespace perfetto {
-namespace protos {
-namespace gen {
-::perfetto::ipc::ServiceDescriptor* ConsumerPort::NewDescriptor() {
-  auto* desc = new ::perfetto::ipc::ServiceDescriptor();
-  desc->service_name = "ConsumerPort";
-
-  desc->methods.emplace_back(::perfetto::ipc::ServiceDescriptor::Method{
-     "EnableTracing",
-     &_IPC_Decoder<EnableTracingRequest>,
-     &_IPC_Decoder<EnableTracingResponse>,
-     &_IPC_Invoker<ConsumerPort, EnableTracingRequest, EnableTracingResponse, &ConsumerPort::EnableTracing>});
-
-  desc->methods.emplace_back(::perfetto::ipc::ServiceDescriptor::Method{
-     "DisableTracing",
-     &_IPC_Decoder<DisableTracingRequest>,
-     &_IPC_Decoder<DisableTracingResponse>,
-     &_IPC_Invoker<ConsumerPort, DisableTracingRequest, DisableTracingResponse, &ConsumerPort::DisableTracing>});
-
-  desc->methods.emplace_back(::perfetto::ipc::ServiceDescriptor::Method{
-     "ReadBuffers",
-     &_IPC_Decoder<ReadBuffersRequest>,
-     &_IPC_Decoder<ReadBuffersResponse>,
-     &_IPC_Invoker<ConsumerPort, ReadBuffersRequest, ReadBuffersResponse, &ConsumerPort::ReadBuffers>});
-
-  desc->methods.emplace_back(::perfetto::ipc::ServiceDescriptor::Method{
-     "FreeBuffers",
-     &_IPC_Decoder<FreeBuffersRequest>,
-     &_IPC_Decoder<FreeBuffersResponse>,
-     &_IPC_Invoker<ConsumerPort, FreeBuffersRequest, FreeBuffersResponse, &ConsumerPort::FreeBuffers>});
-
-  desc->methods.emplace_back(::perfetto::ipc::ServiceDescriptor::Method{
-     "Flush",
-     &_IPC_Decoder<FlushRequest>,
-     &_IPC_Decoder<FlushResponse>,
-     &_IPC_Invoker<ConsumerPort, FlushRequest, FlushResponse, &ConsumerPort::Flush>});
-
-  desc->methods.emplace_back(::perfetto::ipc::ServiceDescriptor::Method{
-     "StartTracing",
-     &_IPC_Decoder<StartTracingRequest>,
-     &_IPC_Decoder<StartTracingResponse>,
-     &_IPC_Invoker<ConsumerPort, StartTracingRequest, StartTracingResponse, &ConsumerPort::StartTracing>});
-
-  desc->methods.emplace_back(::perfetto::ipc::ServiceDescriptor::Method{
-     "ChangeTraceConfig",
-     &_IPC_Decoder<ChangeTraceConfigRequest>,
-     &_IPC_Decoder<ChangeTraceConfigResponse>,
-     &_IPC_Invoker<ConsumerPort, ChangeTraceConfigRequest, ChangeTraceConfigResponse, &ConsumerPort::ChangeTraceConfig>});
-
-  desc->methods.emplace_back(::perfetto::ipc::ServiceDescriptor::Method{
-     "Detach",
-     &_IPC_Decoder<DetachRequest>,
-     &_IPC_Decoder<DetachResponse>,
-     &_IPC_Invoker<ConsumerPort, DetachRequest, DetachResponse, &ConsumerPort::Detach>});
-
-  desc->methods.emplace_back(::perfetto::ipc::ServiceDescriptor::Method{
-     "Attach",
-     &_IPC_Decoder<AttachRequest>,
-     &_IPC_Decoder<AttachResponse>,
-     &_IPC_Invoker<ConsumerPort, AttachRequest, AttachResponse, &ConsumerPort::Attach>});
-
-  desc->methods.emplace_back(::perfetto::ipc::ServiceDescriptor::Method{
-     "GetTraceStats",
-     &_IPC_Decoder<GetTraceStatsRequest>,
-     &_IPC_Decoder<GetTraceStatsResponse>,
-     &_IPC_Invoker<ConsumerPort, GetTraceStatsRequest, GetTraceStatsResponse, &ConsumerPort::GetTraceStats>});
-
-  desc->methods.emplace_back(::perfetto::ipc::ServiceDescriptor::Method{
-     "ObserveEvents",
-     &_IPC_Decoder<ObserveEventsRequest>,
-     &_IPC_Decoder<ObserveEventsResponse>,
-     &_IPC_Invoker<ConsumerPort, ObserveEventsRequest, ObserveEventsResponse, &ConsumerPort::ObserveEvents>});
-
-  desc->methods.emplace_back(::perfetto::ipc::ServiceDescriptor::Method{
-     "QueryServiceState",
-     &_IPC_Decoder<QueryServiceStateRequest>,
-     &_IPC_Decoder<QueryServiceStateResponse>,
-     &_IPC_Invoker<ConsumerPort, QueryServiceStateRequest, QueryServiceStateResponse, &ConsumerPort::QueryServiceState>});
-
-  desc->methods.emplace_back(::perfetto::ipc::ServiceDescriptor::Method{
-     "QueryCapabilities",
-     &_IPC_Decoder<QueryCapabilitiesRequest>,
-     &_IPC_Decoder<QueryCapabilitiesResponse>,
-     &_IPC_Invoker<ConsumerPort, QueryCapabilitiesRequest, QueryCapabilitiesResponse, &ConsumerPort::QueryCapabilities>});
-
-  desc->methods.emplace_back(::perfetto::ipc::ServiceDescriptor::Method{
-     "SaveTraceForBugreport",
-     &_IPC_Decoder<SaveTraceForBugreportRequest>,
-     &_IPC_Decoder<SaveTraceForBugreportResponse>,
-     &_IPC_Invoker<ConsumerPort, SaveTraceForBugreportRequest, SaveTraceForBugreportResponse, &ConsumerPort::SaveTraceForBugreport>});
-  desc->methods.shrink_to_fit();
-  return desc;
-}
-
-
-const ::perfetto::ipc::ServiceDescriptor& ConsumerPort::GetDescriptorStatic() {
-  static auto* instance = NewDescriptor();
-  return *instance;
-}
-
-// Host-side definitions.
-ConsumerPort::~ConsumerPort() = default;
-
-const ::perfetto::ipc::ServiceDescriptor& ConsumerPort::GetDescriptor() {
-  return GetDescriptorStatic();
-}
-
-// Client-side definitions.
-ConsumerPortProxy::ConsumerPortProxy(::perfetto::ipc::ServiceProxy::EventListener* event_listener)
-    : ::perfetto::ipc::ServiceProxy(event_listener) {}
-
-ConsumerPortProxy::~ConsumerPortProxy() = default;
-
-const ::perfetto::ipc::ServiceDescriptor& ConsumerPortProxy::GetDescriptor() {
-  return ConsumerPort::GetDescriptorStatic();
-}
-
-void ConsumerPortProxy::EnableTracing(const EnableTracingRequest& request, DeferredEnableTracingResponse reply, int fd) {
-  BeginInvoke("EnableTracing", request, ::perfetto::ipc::DeferredBase(std::move(reply)),
-              fd);
-}
-
-void ConsumerPortProxy::DisableTracing(const DisableTracingRequest& request, DeferredDisableTracingResponse reply, int fd) {
-  BeginInvoke("DisableTracing", request, ::perfetto::ipc::DeferredBase(std::move(reply)),
-              fd);
-}
-
-void ConsumerPortProxy::ReadBuffers(const ReadBuffersRequest& request, DeferredReadBuffersResponse reply, int fd) {
-  BeginInvoke("ReadBuffers", request, ::perfetto::ipc::DeferredBase(std::move(reply)),
-              fd);
-}
-
-void ConsumerPortProxy::FreeBuffers(const FreeBuffersRequest& request, DeferredFreeBuffersResponse reply, int fd) {
-  BeginInvoke("FreeBuffers", request, ::perfetto::ipc::DeferredBase(std::move(reply)),
-              fd);
-}
-
-void ConsumerPortProxy::Flush(const FlushRequest& request, DeferredFlushResponse reply, int fd) {
-  BeginInvoke("Flush", request, ::perfetto::ipc::DeferredBase(std::move(reply)),
-              fd);
-}
-
-void ConsumerPortProxy::StartTracing(const StartTracingRequest& request, DeferredStartTracingResponse reply, int fd) {
-  BeginInvoke("StartTracing", request, ::perfetto::ipc::DeferredBase(std::move(reply)),
-              fd);
-}
-
-void ConsumerPortProxy::ChangeTraceConfig(const ChangeTraceConfigRequest& request, DeferredChangeTraceConfigResponse reply, int fd) {
-  BeginInvoke("ChangeTraceConfig", request, ::perfetto::ipc::DeferredBase(std::move(reply)),
-              fd);
-}
-
-void ConsumerPortProxy::Detach(const DetachRequest& request, DeferredDetachResponse reply, int fd) {
-  BeginInvoke("Detach", request, ::perfetto::ipc::DeferredBase(std::move(reply)),
-              fd);
-}
-
-void ConsumerPortProxy::Attach(const AttachRequest& request, DeferredAttachResponse reply, int fd) {
-  BeginInvoke("Attach", request, ::perfetto::ipc::DeferredBase(std::move(reply)),
-              fd);
-}
-
-void ConsumerPortProxy::GetTraceStats(const GetTraceStatsRequest& request, DeferredGetTraceStatsResponse reply, int fd) {
-  BeginInvoke("GetTraceStats", request, ::perfetto::ipc::DeferredBase(std::move(reply)),
-              fd);
-}
-
-void ConsumerPortProxy::ObserveEvents(const ObserveEventsRequest& request, DeferredObserveEventsResponse reply, int fd) {
-  BeginInvoke("ObserveEvents", request, ::perfetto::ipc::DeferredBase(std::move(reply)),
-              fd);
-}
-
-void ConsumerPortProxy::QueryServiceState(const QueryServiceStateRequest& request, DeferredQueryServiceStateResponse reply, int fd) {
-  BeginInvoke("QueryServiceState", request, ::perfetto::ipc::DeferredBase(std::move(reply)),
-              fd);
-}
-
-void ConsumerPortProxy::QueryCapabilities(const QueryCapabilitiesRequest& request, DeferredQueryCapabilitiesResponse reply, int fd) {
-  BeginInvoke("QueryCapabilities", request, ::perfetto::ipc::DeferredBase(std::move(reply)),
-              fd);
-}
-
-void ConsumerPortProxy::SaveTraceForBugreport(const SaveTraceForBugreportRequest& request, DeferredSaveTraceForBugreportResponse reply, int fd) {
-  BeginInvoke("SaveTraceForBugreport", request, ::perfetto::ipc::DeferredBase(std::move(reply)),
-              fd);
-}
-}  // namespace perfetto
-}  // namespace protos
-}  // namespace gen
-// gen_amalgamated begin source: gen/protos/perfetto/ipc/producer_port.ipc.cc
-// gen_amalgamated begin header: gen/protos/perfetto/ipc/producer_port.ipc.h
-// DO NOT EDIT. Autogenerated by Perfetto IPC
-#ifndef PERFETTO_PROTOS_PROTOS_PERFETTO_IPC_PRODUCER_PORT_PROTO_H_
-#define PERFETTO_PROTOS_PROTOS_PERFETTO_IPC_PRODUCER_PORT_PROTO_H_
-
-// gen_amalgamated expanded: #include "perfetto/ext/ipc/deferred.h"
-// gen_amalgamated expanded: #include "perfetto/ext/ipc/service.h"
-// gen_amalgamated expanded: #include "perfetto/ext/ipc/service_descriptor.h"
-// gen_amalgamated expanded: #include "perfetto/ext/ipc/service_proxy.h"
-
-// gen_amalgamated expanded: #include "protos/perfetto/ipc/producer_port.gen.h"
-// gen_amalgamated expanded: #include "protos/perfetto/common/commit_data_request.gen.h"
-// gen_amalgamated expanded: #include "protos/perfetto/config/data_source_config.gen.h"
-// gen_amalgamated expanded: #include "protos/perfetto/common/data_source_descriptor.gen.h"
-
-namespace perfetto {
-namespace protos {
-namespace gen {
-
-class ProducerPort : public ::perfetto::ipc::Service {
- private:
-  static ::perfetto::ipc::ServiceDescriptor* NewDescriptor();
-
- public:
-  ~ProducerPort() override;
-
-  static const ::perfetto::ipc::ServiceDescriptor& GetDescriptorStatic();
-
-  // Service implementation.
-  const ::perfetto::ipc::ServiceDescriptor& GetDescriptor() override;
-
-  // Methods from the .proto file
-  using DeferredInitializeConnectionResponse = ::perfetto::ipc::Deferred<InitializeConnectionResponse>;
-  virtual void InitializeConnection(const InitializeConnectionRequest&, DeferredInitializeConnectionResponse) = 0;
-
-  using DeferredRegisterDataSourceResponse = ::perfetto::ipc::Deferred<RegisterDataSourceResponse>;
-  virtual void RegisterDataSource(const RegisterDataSourceRequest&, DeferredRegisterDataSourceResponse) = 0;
-
-  using DeferredUnregisterDataSourceResponse = ::perfetto::ipc::Deferred<UnregisterDataSourceResponse>;
-  virtual void UnregisterDataSource(const UnregisterDataSourceRequest&, DeferredUnregisterDataSourceResponse) = 0;
-
-  using DeferredCommitDataResponse = ::perfetto::ipc::Deferred<CommitDataResponse>;
-  virtual void CommitData(const CommitDataRequest&, DeferredCommitDataResponse) = 0;
-
-  using DeferredGetAsyncCommandResponse = ::perfetto::ipc::Deferred<GetAsyncCommandResponse>;
-  virtual void GetAsyncCommand(const GetAsyncCommandRequest&, DeferredGetAsyncCommandResponse) = 0;
-
-  using DeferredRegisterTraceWriterResponse = ::perfetto::ipc::Deferred<RegisterTraceWriterResponse>;
-  virtual void RegisterTraceWriter(const RegisterTraceWriterRequest&, DeferredRegisterTraceWriterResponse) = 0;
-
-  using DeferredUnregisterTraceWriterResponse = ::perfetto::ipc::Deferred<UnregisterTraceWriterResponse>;
-  virtual void UnregisterTraceWriter(const UnregisterTraceWriterRequest&, DeferredUnregisterTraceWriterResponse) = 0;
-
-  using DeferredNotifyDataSourceStartedResponse = ::perfetto::ipc::Deferred<NotifyDataSourceStartedResponse>;
-  virtual void NotifyDataSourceStarted(const NotifyDataSourceStartedRequest&, DeferredNotifyDataSourceStartedResponse) = 0;
-
-  using DeferredNotifyDataSourceStoppedResponse = ::perfetto::ipc::Deferred<NotifyDataSourceStoppedResponse>;
-  virtual void NotifyDataSourceStopped(const NotifyDataSourceStoppedRequest&, DeferredNotifyDataSourceStoppedResponse) = 0;
-
-  using DeferredActivateTriggersResponse = ::perfetto::ipc::Deferred<ActivateTriggersResponse>;
-  virtual void ActivateTriggers(const ActivateTriggersRequest&, DeferredActivateTriggersResponse) = 0;
-
-  using DeferredSyncResponse = ::perfetto::ipc::Deferred<SyncResponse>;
-  virtual void Sync(const SyncRequest&, DeferredSyncResponse) = 0;
-
-};
-
-
-class ProducerPortProxy : public ::perfetto::ipc::ServiceProxy {
- public:
-   explicit ProducerPortProxy(::perfetto::ipc::ServiceProxy::EventListener*);
-   ~ProducerPortProxy() override;
-
-  // ServiceProxy implementation.
-  const ::perfetto::ipc::ServiceDescriptor& GetDescriptor() override;
-
-  // Methods from the .proto file
-  using DeferredInitializeConnectionResponse = ::perfetto::ipc::Deferred<InitializeConnectionResponse>;
-  void InitializeConnection(const InitializeConnectionRequest&, DeferredInitializeConnectionResponse, int fd = -1);
-
-  using DeferredRegisterDataSourceResponse = ::perfetto::ipc::Deferred<RegisterDataSourceResponse>;
-  void RegisterDataSource(const RegisterDataSourceRequest&, DeferredRegisterDataSourceResponse, int fd = -1);
-
-  using DeferredUnregisterDataSourceResponse = ::perfetto::ipc::Deferred<UnregisterDataSourceResponse>;
-  void UnregisterDataSource(const UnregisterDataSourceRequest&, DeferredUnregisterDataSourceResponse, int fd = -1);
-
-  using DeferredCommitDataResponse = ::perfetto::ipc::Deferred<CommitDataResponse>;
-  void CommitData(const CommitDataRequest&, DeferredCommitDataResponse, int fd = -1);
-
-  using DeferredGetAsyncCommandResponse = ::perfetto::ipc::Deferred<GetAsyncCommandResponse>;
-  void GetAsyncCommand(const GetAsyncCommandRequest&, DeferredGetAsyncCommandResponse, int fd = -1);
-
-  using DeferredRegisterTraceWriterResponse = ::perfetto::ipc::Deferred<RegisterTraceWriterResponse>;
-  void RegisterTraceWriter(const RegisterTraceWriterRequest&, DeferredRegisterTraceWriterResponse, int fd = -1);
-
-  using DeferredUnregisterTraceWriterResponse = ::perfetto::ipc::Deferred<UnregisterTraceWriterResponse>;
-  void UnregisterTraceWriter(const UnregisterTraceWriterRequest&, DeferredUnregisterTraceWriterResponse, int fd = -1);
-
-  using DeferredNotifyDataSourceStartedResponse = ::perfetto::ipc::Deferred<NotifyDataSourceStartedResponse>;
-  void NotifyDataSourceStarted(const NotifyDataSourceStartedRequest&, DeferredNotifyDataSourceStartedResponse, int fd = -1);
-
-  using DeferredNotifyDataSourceStoppedResponse = ::perfetto::ipc::Deferred<NotifyDataSourceStoppedResponse>;
-  void NotifyDataSourceStopped(const NotifyDataSourceStoppedRequest&, DeferredNotifyDataSourceStoppedResponse, int fd = -1);
-
-  using DeferredActivateTriggersResponse = ::perfetto::ipc::Deferred<ActivateTriggersResponse>;
-  void ActivateTriggers(const ActivateTriggersRequest&, DeferredActivateTriggersResponse, int fd = -1);
-
-  using DeferredSyncResponse = ::perfetto::ipc::Deferred<SyncResponse>;
-  void Sync(const SyncRequest&, DeferredSyncResponse, int fd = -1);
-
-};
-
-}  // namespace perfetto
-}  // namespace protos
-}  // namespace gen
-
-#endif  // PERFETTO_PROTOS_PROTOS_PERFETTO_IPC_PRODUCER_PORT_PROTO_H_
-// DO NOT EDIT. Autogenerated by Perfetto IPC
-// gen_amalgamated expanded: #include "protos/perfetto/ipc/producer_port.ipc.h"
-// gen_amalgamated expanded: #include "perfetto/ext/ipc/codegen_helpers.h"
-
-#include <memory>
-
-namespace perfetto {
-namespace protos {
-namespace gen {
-::perfetto::ipc::ServiceDescriptor* ProducerPort::NewDescriptor() {
-  auto* desc = new ::perfetto::ipc::ServiceDescriptor();
-  desc->service_name = "ProducerPort";
-
-  desc->methods.emplace_back(::perfetto::ipc::ServiceDescriptor::Method{
-     "InitializeConnection",
-     &_IPC_Decoder<InitializeConnectionRequest>,
-     &_IPC_Decoder<InitializeConnectionResponse>,
-     &_IPC_Invoker<ProducerPort, InitializeConnectionRequest, InitializeConnectionResponse, &ProducerPort::InitializeConnection>});
-
-  desc->methods.emplace_back(::perfetto::ipc::ServiceDescriptor::Method{
-     "RegisterDataSource",
-     &_IPC_Decoder<RegisterDataSourceRequest>,
-     &_IPC_Decoder<RegisterDataSourceResponse>,
-     &_IPC_Invoker<ProducerPort, RegisterDataSourceRequest, RegisterDataSourceResponse, &ProducerPort::RegisterDataSource>});
-
-  desc->methods.emplace_back(::perfetto::ipc::ServiceDescriptor::Method{
-     "UnregisterDataSource",
-     &_IPC_Decoder<UnregisterDataSourceRequest>,
-     &_IPC_Decoder<UnregisterDataSourceResponse>,
-     &_IPC_Invoker<ProducerPort, UnregisterDataSourceRequest, UnregisterDataSourceResponse, &ProducerPort::UnregisterDataSource>});
-
-  desc->methods.emplace_back(::perfetto::ipc::ServiceDescriptor::Method{
-     "CommitData",
-     &_IPC_Decoder<CommitDataRequest>,
-     &_IPC_Decoder<CommitDataResponse>,
-     &_IPC_Invoker<ProducerPort, CommitDataRequest, CommitDataResponse, &ProducerPort::CommitData>});
-
-  desc->methods.emplace_back(::perfetto::ipc::ServiceDescriptor::Method{
-     "GetAsyncCommand",
-     &_IPC_Decoder<GetAsyncCommandRequest>,
-     &_IPC_Decoder<GetAsyncCommandResponse>,
-     &_IPC_Invoker<ProducerPort, GetAsyncCommandRequest, GetAsyncCommandResponse, &ProducerPort::GetAsyncCommand>});
-
-  desc->methods.emplace_back(::perfetto::ipc::ServiceDescriptor::Method{
-     "RegisterTraceWriter",
-     &_IPC_Decoder<RegisterTraceWriterRequest>,
-     &_IPC_Decoder<RegisterTraceWriterResponse>,
-     &_IPC_Invoker<ProducerPort, RegisterTraceWriterRequest, RegisterTraceWriterResponse, &ProducerPort::RegisterTraceWriter>});
-
-  desc->methods.emplace_back(::perfetto::ipc::ServiceDescriptor::Method{
-     "UnregisterTraceWriter",
-     &_IPC_Decoder<UnregisterTraceWriterRequest>,
-     &_IPC_Decoder<UnregisterTraceWriterResponse>,
-     &_IPC_Invoker<ProducerPort, UnregisterTraceWriterRequest, UnregisterTraceWriterResponse, &ProducerPort::UnregisterTraceWriter>});
-
-  desc->methods.emplace_back(::perfetto::ipc::ServiceDescriptor::Method{
-     "NotifyDataSourceStarted",
-     &_IPC_Decoder<NotifyDataSourceStartedRequest>,
-     &_IPC_Decoder<NotifyDataSourceStartedResponse>,
-     &_IPC_Invoker<ProducerPort, NotifyDataSourceStartedRequest, NotifyDataSourceStartedResponse, &ProducerPort::NotifyDataSourceStarted>});
-
-  desc->methods.emplace_back(::perfetto::ipc::ServiceDescriptor::Method{
-     "NotifyDataSourceStopped",
-     &_IPC_Decoder<NotifyDataSourceStoppedRequest>,
-     &_IPC_Decoder<NotifyDataSourceStoppedResponse>,
-     &_IPC_Invoker<ProducerPort, NotifyDataSourceStoppedRequest, NotifyDataSourceStoppedResponse, &ProducerPort::NotifyDataSourceStopped>});
-
-  desc->methods.emplace_back(::perfetto::ipc::ServiceDescriptor::Method{
-     "ActivateTriggers",
-     &_IPC_Decoder<ActivateTriggersRequest>,
-     &_IPC_Decoder<ActivateTriggersResponse>,
-     &_IPC_Invoker<ProducerPort, ActivateTriggersRequest, ActivateTriggersResponse, &ProducerPort::ActivateTriggers>});
-
-  desc->methods.emplace_back(::perfetto::ipc::ServiceDescriptor::Method{
-     "Sync",
-     &_IPC_Decoder<SyncRequest>,
-     &_IPC_Decoder<SyncResponse>,
-     &_IPC_Invoker<ProducerPort, SyncRequest, SyncResponse, &ProducerPort::Sync>});
-  desc->methods.shrink_to_fit();
-  return desc;
-}
-
-
-const ::perfetto::ipc::ServiceDescriptor& ProducerPort::GetDescriptorStatic() {
-  static auto* instance = NewDescriptor();
-  return *instance;
-}
-
-// Host-side definitions.
-ProducerPort::~ProducerPort() = default;
-
-const ::perfetto::ipc::ServiceDescriptor& ProducerPort::GetDescriptor() {
-  return GetDescriptorStatic();
-}
-
-// Client-side definitions.
-ProducerPortProxy::ProducerPortProxy(::perfetto::ipc::ServiceProxy::EventListener* event_listener)
-    : ::perfetto::ipc::ServiceProxy(event_listener) {}
-
-ProducerPortProxy::~ProducerPortProxy() = default;
-
-const ::perfetto::ipc::ServiceDescriptor& ProducerPortProxy::GetDescriptor() {
-  return ProducerPort::GetDescriptorStatic();
-}
-
-void ProducerPortProxy::InitializeConnection(const InitializeConnectionRequest& request, DeferredInitializeConnectionResponse reply, int fd) {
-  BeginInvoke("InitializeConnection", request, ::perfetto::ipc::DeferredBase(std::move(reply)),
-              fd);
-}
-
-void ProducerPortProxy::RegisterDataSource(const RegisterDataSourceRequest& request, DeferredRegisterDataSourceResponse reply, int fd) {
-  BeginInvoke("RegisterDataSource", request, ::perfetto::ipc::DeferredBase(std::move(reply)),
-              fd);
-}
-
-void ProducerPortProxy::UnregisterDataSource(const UnregisterDataSourceRequest& request, DeferredUnregisterDataSourceResponse reply, int fd) {
-  BeginInvoke("UnregisterDataSource", request, ::perfetto::ipc::DeferredBase(std::move(reply)),
-              fd);
-}
-
-void ProducerPortProxy::CommitData(const CommitDataRequest& request, DeferredCommitDataResponse reply, int fd) {
-  BeginInvoke("CommitData", request, ::perfetto::ipc::DeferredBase(std::move(reply)),
-              fd);
-}
-
-void ProducerPortProxy::GetAsyncCommand(const GetAsyncCommandRequest& request, DeferredGetAsyncCommandResponse reply, int fd) {
-  BeginInvoke("GetAsyncCommand", request, ::perfetto::ipc::DeferredBase(std::move(reply)),
-              fd);
-}
-
-void ProducerPortProxy::RegisterTraceWriter(const RegisterTraceWriterRequest& request, DeferredRegisterTraceWriterResponse reply, int fd) {
-  BeginInvoke("RegisterTraceWriter", request, ::perfetto::ipc::DeferredBase(std::move(reply)),
-              fd);
-}
-
-void ProducerPortProxy::UnregisterTraceWriter(const UnregisterTraceWriterRequest& request, DeferredUnregisterTraceWriterResponse reply, int fd) {
-  BeginInvoke("UnregisterTraceWriter", request, ::perfetto::ipc::DeferredBase(std::move(reply)),
-              fd);
-}
-
-void ProducerPortProxy::NotifyDataSourceStarted(const NotifyDataSourceStartedRequest& request, DeferredNotifyDataSourceStartedResponse reply, int fd) {
-  BeginInvoke("NotifyDataSourceStarted", request, ::perfetto::ipc::DeferredBase(std::move(reply)),
-              fd);
-}
-
-void ProducerPortProxy::NotifyDataSourceStopped(const NotifyDataSourceStoppedRequest& request, DeferredNotifyDataSourceStoppedResponse reply, int fd) {
-  BeginInvoke("NotifyDataSourceStopped", request, ::perfetto::ipc::DeferredBase(std::move(reply)),
-              fd);
-}
-
-void ProducerPortProxy::ActivateTriggers(const ActivateTriggersRequest& request, DeferredActivateTriggersResponse reply, int fd) {
-  BeginInvoke("ActivateTriggers", request, ::perfetto::ipc::DeferredBase(std::move(reply)),
-              fd);
-}
-
-void ProducerPortProxy::Sync(const SyncRequest& request, DeferredSyncResponse reply, int fd) {
-  BeginInvoke("Sync", request, ::perfetto::ipc::DeferredBase(std::move(reply)),
-              fd);
-}
-}  // namespace perfetto
-}  // namespace protos
-}  // namespace gen
-// gen_amalgamated begin source: src/tracing/ipc/default_socket.cc
-// gen_amalgamated begin header: include/perfetto/ext/tracing/ipc/default_socket.h
-/*
- * Copyright (C) 2018 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef INCLUDE_PERFETTO_EXT_TRACING_IPC_DEFAULT_SOCKET_H_
-#define INCLUDE_PERFETTO_EXT_TRACING_IPC_DEFAULT_SOCKET_H_
-
-// gen_amalgamated expanded: #include "perfetto/base/export.h"
-
-namespace perfetto {
-
-PERFETTO_EXPORT const char* GetConsumerSocket();
-PERFETTO_EXPORT const char* GetProducerSocket();
-
-}  // namespace perfetto
-
-#endif  // INCLUDE_PERFETTO_EXT_TRACING_IPC_DEFAULT_SOCKET_H_
-/*
- * Copyright (C) 2018 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-// gen_amalgamated expanded: #include "perfetto/ext/tracing/ipc/default_socket.h"
-
-// gen_amalgamated expanded: #include "perfetto/base/build_config.h"
-// gen_amalgamated expanded: #include "perfetto/base/logging.h"
-// gen_amalgamated expanded: #include "perfetto/ext/base/utils.h"
-// gen_amalgamated expanded: #include "perfetto/ext/ipc/basic_types.h"
-// gen_amalgamated expanded: #include "perfetto/ext/tracing/core/basic_types.h"
-
-#include <stdlib.h>
-#include <unistd.h>
-
-namespace perfetto {
-#if !PERFETTO_BUILDFLAG(PERFETTO_OS_ANDROID)
-// On non-Android platforms, check /run/perfetto/ before using /tmp/ as the
-// socket base directory.
-namespace {
-const char* kRunPerfettoBaseDir = "/run/perfetto/";
-
-bool UseRunPerfettoBaseDir() {
-#if PERFETTO_BUILDFLAG(PERFETTO_OS_LINUX) ||   \
-    PERFETTO_BUILDFLAG(PERFETTO_OS_ANDROID) || \
-    PERFETTO_BUILDFLAG(PERFETTO_OS_APPLE)
-  // Note that the trailing / in |kRunPerfettoBaseDir| ensures we are checking
-  // against a directory, not a file.
-  int res = PERFETTO_EINTR(access(kRunPerfettoBaseDir, X_OK));
-  if (!res)
-    return true;
-
-  // If the path doesn't exist (ENOENT), fail silently to the caller. Otherwise,
-  // fail with an explicit error message.
-  if (errno != ENOENT) {
-    PERFETTO_PLOG("%s exists but cannot be accessed. Falling back on /tmp/ ",
-                  kRunPerfettoBaseDir);
-  }
-  return false;
-#else
-  return false;
-#endif
-}
-
-}  // anonymous namespace
-#endif  // !PERFETTO_BUILDFLAG(PERFETTO_OS_ANDROID)
-
-static_assert(kInvalidUid == ipc::kInvalidUid, "kInvalidUid mismatching");
-
-const char* GetProducerSocket() {
-  const char* name = getenv("PERFETTO_PRODUCER_SOCK_NAME");
-  if (name == nullptr) {
-#if PERFETTO_BUILDFLAG(PERFETTO_OS_WIN)
-    name = "127.0.0.1:32278";
-#elif PERFETTO_BUILDFLAG(PERFETTO_OS_ANDROID)
-    name = "/dev/socket/traced_producer";
-#else
-    // Use /run/perfetto if it exists. Then fallback to /tmp.
-    static const char* producer_socket =
-        UseRunPerfettoBaseDir() ? "/run/perfetto/traced-producer.sock"
-                                : "/tmp/perfetto-producer";
-    name = producer_socket;
-#endif
-  }
-  return name;
-}
-
-const char* GetConsumerSocket() {
-  const char* name = getenv("PERFETTO_CONSUMER_SOCK_NAME");
-  if (name == nullptr) {
-#if PERFETTO_BUILDFLAG(PERFETTO_OS_WIN)
-    name = "127.0.0.1:32279";
-#elif PERFETTO_BUILDFLAG(PERFETTO_OS_ANDROID)
-    name = "/dev/socket/traced_consumer";
-#else
-    // Use /run/perfetto if it exists. Then fallback to /tmp.
-    static const char* consumer_socket =
-        UseRunPerfettoBaseDir() ? "/run/perfetto/traced-consumer.sock"
-                                : "/tmp/perfetto-consumer";
-    name = consumer_socket;
-#endif
-  }
-  return name;
-}
-
-}  // namespace perfetto
-// gen_amalgamated begin source: src/tracing/ipc/memfd.cc
-// gen_amalgamated begin header: src/tracing/ipc/memfd.h
-/*
- * Copyright (C) 2020 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef SRC_TRACING_IPC_MEMFD_H_
-#define SRC_TRACING_IPC_MEMFD_H_
-
-// gen_amalgamated expanded: #include "perfetto/base/build_config.h"
-
-// gen_amalgamated expanded: #include "perfetto/ext/base/scoped_file.h"
-
-// Some android build bots use a sysroot that doesn't support memfd when
-// compiling for the host, so we define the flags we need ourselves.
-
-// from memfd.h
-#ifndef MFD_CLOEXEC
-#define MFD_CLOEXEC 0x0001U
-#define MFD_ALLOW_SEALING 0x0002U
-#endif
-
-// from fcntl.h
-#ifndef F_ADD_SEALS
-#define F_ADD_SEALS 1033
-#define F_GET_SEALS 1034
-#define F_SEAL_SEAL 0x0001
-#define F_SEAL_SHRINK 0x0002
-#define F_SEAL_GROW 0x0004
-#define F_SEAL_WRITE 0x0008
-#endif
-
-namespace perfetto {
-
-// Whether the operating system supports memfd.
-bool HasMemfdSupport();
-
-// Call memfd(2) if available on platform and return the fd as result. This call
-// also makes a kernel version check for safety on older kernels (b/116769556).
-// Returns an invalid ScopedFile on failure.
-base::ScopedFile CreateMemfd(const char* name, unsigned int flags);
-
-}  // namespace perfetto
-
-#endif  // SRC_TRACING_IPC_MEMFD_H_
-/*
- * Copyright (C) 2020 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-// gen_amalgamated expanded: #include "src/tracing/ipc/memfd.h"
-
-#include <errno.h>
-
-#define PERFETTO_MEMFD_ENABLED()             \
-  PERFETTO_BUILDFLAG(PERFETTO_OS_ANDROID) || \
-      PERFETTO_BUILDFLAG(PERFETTO_OS_LINUX)
-
-#if PERFETTO_MEMFD_ENABLED()
-
-#include <stdio.h>
-#include <string.h>
-#include <sys/syscall.h>
-#include <sys/utsname.h>
-#include <unistd.h>
-
-// Some android build bots use a sysroot that doesn't support memfd when
-// compiling for the host, so we redefine it if necessary.
-#if !defined(__NR_memfd_create)
-#if defined(__x86_64__)
-#define __NR_memfd_create 319
-#elif defined(__i386__)
-#define __NR_memfd_create 356
-#elif defined(__aarch64__)
-#define __NR_memfd_create 279
-#elif defined(__arm__)
-#define __NR_memfd_create 385
-#else
-#error "unsupported sysroot without memfd support"
-#endif
-#endif  // !defined(__NR_memfd_create)
-
-namespace perfetto {
-bool HasMemfdSupport() {
-  static bool kSupportsMemfd = [] {
-    // Check kernel version supports memfd_create(). Some older kernels segfault
-    // executing memfd_create() rather than returning ENOSYS (b/116769556).
-    static constexpr int kRequiredMajor = 3;
-    static constexpr int kRequiredMinor = 17;
-    struct utsname uts;
-    int major, minor;
-    if (uname(&uts) == 0 && strcmp(uts.sysname, "Linux") == 0 &&
-        sscanf(uts.release, "%d.%d", &major, &minor) == 2 &&
-        ((major < kRequiredMajor ||
-          (major == kRequiredMajor && minor < kRequiredMinor)))) {
-      return false;
-    }
-
-    base::ScopedFile fd;
-    fd.reset(static_cast<int>(syscall(__NR_memfd_create, "perfetto_shmem",
-                                      MFD_CLOEXEC | MFD_ALLOW_SEALING)));
-    return !!fd;
-  }();
-  return kSupportsMemfd;
-}
-
-base::ScopedFile CreateMemfd(const char* name, unsigned int flags) {
-  if (!HasMemfdSupport()) {
-    errno = ENOSYS;
-    return base::ScopedFile();
-  }
-  return base::ScopedFile(
-      static_cast<int>(syscall(__NR_memfd_create, name, flags)));
-}
-}  // namespace perfetto
-
-#else  // PERFETTO_MEMFD_ENABLED()
-
-namespace perfetto {
-bool HasMemfdSupport() {
-  return false;
-}
-base::ScopedFile CreateMemfd(const char*, unsigned int) {
-  errno = ENOSYS;
-  return base::ScopedFile();
-}
-}  // namespace perfetto
-
-#endif  // PERFETTO_MEMFD_ENABLED()
-// gen_amalgamated begin source: src/tracing/ipc/posix_shared_memory.cc
-// gen_amalgamated begin header: src/tracing/ipc/posix_shared_memory.h
-/*
- * Copyright (C) 2017 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef SRC_TRACING_IPC_POSIX_SHARED_MEMORY_H_
-#define SRC_TRACING_IPC_POSIX_SHARED_MEMORY_H_
-
-// gen_amalgamated expanded: #include "perfetto/base/build_config.h"
-
-#if PERFETTO_BUILDFLAG(PERFETTO_OS_LINUX) ||   \
-    PERFETTO_BUILDFLAG(PERFETTO_OS_ANDROID) || \
-    PERFETTO_BUILDFLAG(PERFETTO_OS_APPLE)
-
-#include <stddef.h>
-
-#include <memory>
-
-// gen_amalgamated expanded: #include "perfetto/base/build_config.h"
-// gen_amalgamated expanded: #include "perfetto/ext/base/scoped_file.h"
-// gen_amalgamated expanded: #include "perfetto/ext/tracing/core/shared_memory.h"
-
-namespace perfetto {
-
-// Implements the SharedMemory and its factory for the posix-based transport.
-class PosixSharedMemory : public SharedMemory {
- public:
-  class Factory : public SharedMemory::Factory {
-   public:
-    ~Factory() override;
-    std::unique_ptr<SharedMemory> CreateSharedMemory(size_t) override;
-  };
-
-  // Create a brand new SHM region.
-  static std::unique_ptr<PosixSharedMemory> Create(size_t size);
-
-  // Mmaps a file descriptor to an existing SHM region. If
-  // |require_seals_if_supported| is true and the system supports
-  // memfd_create(), the FD is required to be a sealed memfd with F_SEAL_SEAL,
-  // F_SEAL_GROW, and F_SEAL_SHRINK seals set (otherwise, nullptr is returned).
-  // May also return nullptr if mapping fails for another reason (e.g. OOM).
-  static std::unique_ptr<PosixSharedMemory> AttachToFd(
-      base::ScopedFile,
-      bool require_seals_if_supported = true);
-
-  ~PosixSharedMemory() override;
-
-  int fd() const { return fd_.get(); }
-
-  // SharedMemory implementation.
-  void* start() const override { return start_; }
-  size_t size() const override { return size_; }
-
- private:
-  static std::unique_ptr<PosixSharedMemory> MapFD(base::ScopedFile, size_t);
-
-  PosixSharedMemory(void* start, size_t size, base::ScopedFile);
-  PosixSharedMemory(const PosixSharedMemory&) = delete;
-  PosixSharedMemory& operator=(const PosixSharedMemory&) = delete;
-
-  void* const start_;
-  const size_t size_;
-  base::ScopedFile fd_;
-};
-
-}  // namespace perfetto
-
-#endif  // OS_LINUX || OS_ANDROID || OS_APPLE
-#endif  // SRC_TRACING_IPC_POSIX_SHARED_MEMORY_H_
-/*
- * Copyright (C) 2017 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-// gen_amalgamated expanded: #include "src/tracing/ipc/posix_shared_memory.h"
-
-#if PERFETTO_BUILDFLAG(PERFETTO_OS_LINUX) ||   \
-    PERFETTO_BUILDFLAG(PERFETTO_OS_ANDROID) || \
-    PERFETTO_BUILDFLAG(PERFETTO_OS_APPLE)
-
-#include <fcntl.h>
-#include <stdint.h>
-#include <stdio.h>
-#include <stdlib.h>
-#include <sys/mman.h>
-#include <sys/stat.h>
-#include <unistd.h>
-
-#include <memory>
-#include <utility>
-
-// gen_amalgamated expanded: #include "perfetto/base/compiler.h"
-// gen_amalgamated expanded: #include "perfetto/base/logging.h"
-// gen_amalgamated expanded: #include "perfetto/ext/base/temp_file.h"
-// gen_amalgamated expanded: #include "src/tracing/ipc/memfd.h"
-
-namespace perfetto {
-
-namespace {
-int kFileSeals = F_SEAL_SHRINK | F_SEAL_GROW | F_SEAL_SEAL;
-}  // namespace
-
-// static
-std::unique_ptr<PosixSharedMemory> PosixSharedMemory::Create(size_t size) {
-  base::ScopedFile fd =
-      CreateMemfd("perfetto_shmem", MFD_CLOEXEC | MFD_ALLOW_SEALING);
-  bool is_memfd = !!fd;
-
-  // In-tree builds only allow mem_fd, so we can inspect the seals to verify the
-  // fd is appropriately sealed. We'll crash in the PERFETTO_CHECK(fd) below if
-  // memfd_create failed.
-#if !PERFETTO_BUILDFLAG(PERFETTO_ANDROID_BUILD)
-  if (!fd) {
-    // TODO: if this fails on Android we should fall back on ashmem.
-    PERFETTO_DPLOG("memfd_create() failed");
-    fd = base::TempFile::CreateUnlinked().ReleaseFD();
-  }
-#endif
-
-  PERFETTO_CHECK(fd);
-  int res = ftruncate(fd.get(), static_cast<off_t>(size));
-  PERFETTO_CHECK(res == 0);
-
-  if (is_memfd) {
-    // When memfd is supported, file seals should be, too.
-    res = fcntl(*fd, F_ADD_SEALS, kFileSeals);
-    PERFETTO_DCHECK(res == 0);
-  }
-
-  return MapFD(std::move(fd), size);
-}
-
-// static
-std::unique_ptr<PosixSharedMemory> PosixSharedMemory::AttachToFd(
-    base::ScopedFile fd,
-    bool require_seals_if_supported) {
-  bool requires_seals = require_seals_if_supported;
-
-#if PERFETTO_BUILDFLAG(PERFETTO_ANDROID_BUILD)
-  // In-tree kernels all support memfd.
-  PERFETTO_CHECK(HasMemfdSupport());
-#else
-  // In out-of-tree builds, we only require seals if the kernel supports memfd.
-  if (requires_seals)
-    requires_seals = HasMemfdSupport();
-#endif
-
-  if (requires_seals) {
-    // If the system supports memfd, we require a sealed memfd.
-    int res = fcntl(*fd, F_GET_SEALS);
-    if (res == -1 || (res & kFileSeals) != kFileSeals) {
-      PERFETTO_PLOG("Couldn't verify file seals on shmem FD");
-      return nullptr;
-    }
-  }
-
-  struct stat stat_buf = {};
-  int res = fstat(fd.get(), &stat_buf);
-  PERFETTO_CHECK(res == 0 && stat_buf.st_size > 0);
-  return MapFD(std::move(fd), static_cast<size_t>(stat_buf.st_size));
-}
-
-// static
-std::unique_ptr<PosixSharedMemory> PosixSharedMemory::MapFD(base::ScopedFile fd,
-                                                            size_t size) {
-  PERFETTO_DCHECK(fd);
-  PERFETTO_DCHECK(size > 0);
-  void* start =
-      mmap(nullptr, size, PROT_READ | PROT_WRITE, MAP_SHARED, fd.get(), 0);
-  PERFETTO_CHECK(start != MAP_FAILED);
-  return std::unique_ptr<PosixSharedMemory>(
-      new PosixSharedMemory(start, size, std::move(fd)));
-}
-
-PosixSharedMemory::PosixSharedMemory(void* start,
-                                     size_t size,
-                                     base::ScopedFile fd)
-    : start_(start), size_(size), fd_(std::move(fd)) {}
-
-PosixSharedMemory::~PosixSharedMemory() {
-  munmap(start(), size());
-}
-
-PosixSharedMemory::Factory::~Factory() {}
-
-std::unique_ptr<SharedMemory> PosixSharedMemory::Factory::CreateSharedMemory(
-    size_t size) {
-  return PosixSharedMemory::Create(size);
-}
-
-}  // namespace perfetto
-
-#endif  // OS_LINUX || OS_ANDROID || OS_APPLE
-// gen_amalgamated begin source: src/tracing/ipc/consumer/consumer_ipc_client_impl.cc
-// gen_amalgamated begin header: src/tracing/ipc/consumer/consumer_ipc_client_impl.h
-// gen_amalgamated begin header: include/perfetto/ext/tracing/ipc/consumer_ipc_client.h
-/*
- * Copyright (C) 2017 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef INCLUDE_PERFETTO_EXT_TRACING_IPC_CONSUMER_IPC_CLIENT_H_
-#define INCLUDE_PERFETTO_EXT_TRACING_IPC_CONSUMER_IPC_CLIENT_H_
-
-#include <memory>
-#include <string>
-
-// gen_amalgamated expanded: #include "perfetto/base/export.h"
-// gen_amalgamated expanded: #include "perfetto/ext/tracing/core/tracing_service.h"
-
-namespace perfetto {
-
-class Consumer;
-
-// Allows to connect to a remote Service through a UNIX domain socket.
-// Exposed to:
-//   Consumer(s) of the tracing library.
-// Implemented in:
-//   src/tracing/ipc/consumer/consumer_ipc_client_impl.cc
-class PERFETTO_EXPORT ConsumerIPCClient {
- public:
-  // Connects to the producer port of the Service listening on the given
-  // |service_sock_name|. If the connection is successful, the OnConnect()
-  // method will be invoked asynchronously on the passed Consumer interface.
-  // If the connection fails, OnDisconnect() will be invoked instead.
-  // The returned ConsumerEndpoint serves also to delimit the scope of the
-  // callbacks invoked on the Consumer interface: no more Consumer callbacks are
-  // invoked immediately after its destruction and any pending callback will be
-  // dropped.
-  static std::unique_ptr<TracingService::ConsumerEndpoint>
-  Connect(const char* service_sock_name, Consumer*, base::TaskRunner*);
-
- protected:
-  ConsumerIPCClient() = delete;
-};
-
-}  // namespace perfetto
-
-#endif  // INCLUDE_PERFETTO_EXT_TRACING_IPC_CONSUMER_IPC_CLIENT_H_
-/*
- * Copyright (C) 2017 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef SRC_TRACING_IPC_CONSUMER_CONSUMER_IPC_CLIENT_IMPL_H_
-#define SRC_TRACING_IPC_CONSUMER_CONSUMER_IPC_CLIENT_IMPL_H_
-
-#include <stdint.h>
-
-#include <list>
-#include <vector>
-
-// gen_amalgamated expanded: #include "perfetto/ext/base/scoped_file.h"
-// gen_amalgamated expanded: #include "perfetto/ext/base/weak_ptr.h"
-// gen_amalgamated expanded: #include "perfetto/ext/ipc/service_proxy.h"
-// gen_amalgamated expanded: #include "perfetto/ext/tracing/core/basic_types.h"
-// gen_amalgamated expanded: #include "perfetto/ext/tracing/core/trace_packet.h"
-// gen_amalgamated expanded: #include "perfetto/ext/tracing/core/tracing_service.h"
-// gen_amalgamated expanded: #include "perfetto/ext/tracing/ipc/consumer_ipc_client.h"
-// gen_amalgamated expanded: #include "perfetto/tracing/core/forward_decls.h"
-
-// gen_amalgamated expanded: #include "protos/perfetto/ipc/consumer_port.ipc.h"
-
-namespace perfetto {
-
-namespace base {
-class TaskRunner;
-}  // namespace base
-
-namespace ipc {
-class Client;
-}  // namespace ipc
-
-class Consumer;
-
-// Exposes a Service endpoint to Consumer(s), proxying all requests through a
-// IPC channel to the remote Service. This class is the glue layer between the
-// generic Service interface exposed to the clients of the library and the
-// actual IPC transport.
-class ConsumerIPCClientImpl : public TracingService::ConsumerEndpoint,
-                              public ipc::ServiceProxy::EventListener {
- public:
-  ConsumerIPCClientImpl(const char* service_sock_name,
-                        Consumer*,
-                        base::TaskRunner*);
-  ~ConsumerIPCClientImpl() override;
-
-  // TracingService::ConsumerEndpoint implementation.
-  // These methods are invoked by the actual Consumer(s) code by clients of the
-  // tracing library, which know nothing about the IPC transport.
-  void EnableTracing(const TraceConfig&, base::ScopedFile) override;
-  void StartTracing() override;
-  void ChangeTraceConfig(const TraceConfig&) override;
-  void DisableTracing() override;
-  void ReadBuffers() override;
-  void FreeBuffers() override;
-  void Flush(uint32_t timeout_ms, FlushCallback) override;
-  void Detach(const std::string& key) override;
-  void Attach(const std::string& key) override;
-  void GetTraceStats() override;
-  void ObserveEvents(uint32_t enabled_event_types) override;
-  void QueryServiceState(QueryServiceStateCallback) override;
-  void QueryCapabilities(QueryCapabilitiesCallback) override;
-  void SaveTraceForBugreport(SaveTraceForBugreportCallback) override;
-
-  // ipc::ServiceProxy::EventListener implementation.
-  // These methods are invoked by the IPC layer, which knows nothing about
-  // tracing, consumers and consumers.
-  void OnConnect() override;
-  void OnDisconnect() override;
-
- private:
-  struct PendingQueryServiceRequest {
-    QueryServiceStateCallback callback;
-
-    // All the replies will be appended here until |has_more| == false.
-    std::vector<uint8_t> merged_resp;
-  };
-
-  // List because we need stable iterators.
-  using PendingQueryServiceRequests = std::list<PendingQueryServiceRequest>;
-
-  void OnReadBuffersResponse(
-      ipc::AsyncResult<protos::gen::ReadBuffersResponse>);
-  void OnEnableTracingResponse(
-      ipc::AsyncResult<protos::gen::EnableTracingResponse>);
-  void OnQueryServiceStateResponse(
-      ipc::AsyncResult<protos::gen::QueryServiceStateResponse>,
-      PendingQueryServiceRequests::iterator);
-
-  // TODO(primiano): think to dtor order, do we rely on any specific sequence?
-  Consumer* const consumer_;
-
-  // The object that owns the client socket and takes care of IPC traffic.
-  std::unique_ptr<ipc::Client> ipc_channel_;
-
-  // The proxy interface for the consumer port of the service. It is bound
-  // to |ipc_channel_| and (de)serializes method invocations over the wire.
-  protos::gen::ConsumerPortProxy consumer_port_;
-
-  bool connected_ = false;
-
-  PendingQueryServiceRequests pending_query_svc_reqs_;
-
-  // When a packet is too big to fit into a ReadBuffersResponse IPC, the service
-  // will chunk it into several IPCs, each containing few slices of the packet
-  // (a packet's slice is always guaranteed to be << kIPCBufferSize). When
-  // chunking happens this field accumulates the slices received until the
-  // one with |last_slice_for_packet| == true is received.
-  TracePacket partial_packet_;
-
-  // Keep last.
-  base::WeakPtrFactory<ConsumerIPCClientImpl> weak_ptr_factory_;
-};
-
-}  // namespace perfetto
-
-#endif  // SRC_TRACING_IPC_CONSUMER_CONSUMER_IPC_CLIENT_IMPL_H_
-/*
- * Copyright (C) 2017 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-// gen_amalgamated expanded: #include "src/tracing/ipc/consumer/consumer_ipc_client_impl.h"
-
-#include <inttypes.h>
-#include <string.h>
-
-// gen_amalgamated expanded: #include "perfetto/base/task_runner.h"
-// gen_amalgamated expanded: #include "perfetto/ext/ipc/client.h"
-// gen_amalgamated expanded: #include "perfetto/ext/tracing/core/consumer.h"
-// gen_amalgamated expanded: #include "perfetto/ext/tracing/core/observable_events.h"
-// gen_amalgamated expanded: #include "perfetto/ext/tracing/core/trace_stats.h"
-// gen_amalgamated expanded: #include "perfetto/tracing/core/trace_config.h"
-// gen_amalgamated expanded: #include "perfetto/tracing/core/tracing_service_state.h"
-
-// TODO(fmayer): Add a test to check to what happens when ConsumerIPCClientImpl
-// gets destroyed w.r.t. the Consumer pointer. Also think to lifetime of the
-// Consumer* during the callbacks.
-
-namespace perfetto {
-
-// static. (Declared in include/tracing/ipc/consumer_ipc_client.h).
-std::unique_ptr<TracingService::ConsumerEndpoint> ConsumerIPCClient::Connect(
-    const char* service_sock_name,
-    Consumer* consumer,
-    base::TaskRunner* task_runner) {
-  return std::unique_ptr<TracingService::ConsumerEndpoint>(
-      new ConsumerIPCClientImpl(service_sock_name, consumer, task_runner));
-}
-
-ConsumerIPCClientImpl::ConsumerIPCClientImpl(const char* service_sock_name,
-                                             Consumer* consumer,
-                                             base::TaskRunner* task_runner)
-    : consumer_(consumer),
-      ipc_channel_(
-          ipc::Client::CreateInstance({service_sock_name, /*sock_retry=*/false},
-                                      task_runner)),
-      consumer_port_(this /* event_listener */),
-      weak_ptr_factory_(this) {
-  ipc_channel_->BindService(consumer_port_.GetWeakPtr());
-}
-
-ConsumerIPCClientImpl::~ConsumerIPCClientImpl() = default;
-
-// Called by the IPC layer if the BindService() succeeds.
-void ConsumerIPCClientImpl::OnConnect() {
-  connected_ = true;
-  consumer_->OnConnect();
-}
-
-void ConsumerIPCClientImpl::OnDisconnect() {
-  PERFETTO_DLOG("Tracing service connection failure");
-  connected_ = false;
-  consumer_->OnDisconnect();  // Note: may delete |this|.
-}
-
-void ConsumerIPCClientImpl::EnableTracing(const TraceConfig& trace_config,
-                                          base::ScopedFile fd) {
-  if (!connected_) {
-    PERFETTO_DLOG("Cannot EnableTracing(), not connected to tracing service");
-    return;
-  }
-
-#if PERFETTO_BUILDFLAG(PERFETTO_OS_WIN)
-  if (fd) {
-    consumer_->OnTracingDisabled(
-        "Passing FDs for write_into_file is not supported on Windows");
-    return;
-  }
-#endif
-
-  protos::gen::EnableTracingRequest req;
-  *req.mutable_trace_config() = trace_config;
-  ipc::Deferred<protos::gen::EnableTracingResponse> async_response;
-  auto weak_this = weak_ptr_factory_.GetWeakPtr();
-  async_response.Bind(
-      [weak_this](
-          ipc::AsyncResult<protos::gen::EnableTracingResponse> response) {
-        if (weak_this)
-          weak_this->OnEnableTracingResponse(std::move(response));
-      });
-
-  // |fd| will be closed when this function returns, but it's fine because the
-  // IPC layer dup()'s it when sending the IPC.
-  consumer_port_.EnableTracing(req, std::move(async_response), *fd);
-}
-
-void ConsumerIPCClientImpl::ChangeTraceConfig(const TraceConfig& trace_config) {
-  if (!connected_) {
-    PERFETTO_DLOG(
-        "Cannot ChangeTraceConfig(), not connected to tracing service");
-    return;
-  }
-
-  ipc::Deferred<protos::gen::ChangeTraceConfigResponse> async_response;
-  async_response.Bind(
-      [](ipc::AsyncResult<protos::gen::ChangeTraceConfigResponse> response) {
-        if (!response)
-          PERFETTO_DLOG("ChangeTraceConfig() failed");
-      });
-  protos::gen::ChangeTraceConfigRequest req;
-  *req.mutable_trace_config() = trace_config;
-  consumer_port_.ChangeTraceConfig(req, std::move(async_response));
-}
-
-void ConsumerIPCClientImpl::StartTracing() {
-  if (!connected_) {
-    PERFETTO_DLOG("Cannot StartTracing(), not connected to tracing service");
-    return;
-  }
-
-  ipc::Deferred<protos::gen::StartTracingResponse> async_response;
-  async_response.Bind(
-      [](ipc::AsyncResult<protos::gen::StartTracingResponse> response) {
-        if (!response)
-          PERFETTO_DLOG("StartTracing() failed");
-      });
-  protos::gen::StartTracingRequest req;
-  consumer_port_.StartTracing(req, std::move(async_response));
-}
-
-void ConsumerIPCClientImpl::DisableTracing() {
-  if (!connected_) {
-    PERFETTO_DLOG("Cannot DisableTracing(), not connected to tracing service");
-    return;
-  }
-
-  ipc::Deferred<protos::gen::DisableTracingResponse> async_response;
-  async_response.Bind(
-      [](ipc::AsyncResult<protos::gen::DisableTracingResponse> response) {
-        if (!response)
-          PERFETTO_DLOG("DisableTracing() failed");
-      });
-  consumer_port_.DisableTracing(protos::gen::DisableTracingRequest(),
-                                std::move(async_response));
-}
-
-void ConsumerIPCClientImpl::ReadBuffers() {
-  if (!connected_) {
-    PERFETTO_DLOG("Cannot ReadBuffers(), not connected to tracing service");
-    return;
-  }
-
-  ipc::Deferred<protos::gen::ReadBuffersResponse> async_response;
-
-  // The IPC layer guarantees that callbacks are destroyed after this object
-  // is destroyed (by virtue of destroying the |consumer_port_|). In turn the
-  // contract of this class expects the caller to not destroy the Consumer class
-  // before having destroyed this class. Hence binding |this| here is safe.
-  async_response.Bind(
-      [this](ipc::AsyncResult<protos::gen::ReadBuffersResponse> response) {
-        OnReadBuffersResponse(std::move(response));
-      });
-  consumer_port_.ReadBuffers(protos::gen::ReadBuffersRequest(),
-                             std::move(async_response));
-}
-
-void ConsumerIPCClientImpl::OnReadBuffersResponse(
-    ipc::AsyncResult<protos::gen::ReadBuffersResponse> response) {
-  if (!response) {
-    PERFETTO_DLOG("ReadBuffers() failed");
-    return;
-  }
-  std::vector<TracePacket> trace_packets;
-  for (auto& resp_slice : response->slices()) {
-    const std::string& slice_data = resp_slice.data();
-    Slice slice = Slice::Allocate(slice_data.size());
-    memcpy(slice.own_data(), slice_data.data(), slice.size);
-    partial_packet_.AddSlice(std::move(slice));
-    if (resp_slice.last_slice_for_packet())
-      trace_packets.emplace_back(std::move(partial_packet_));
-  }
-  if (!trace_packets.empty() || !response.has_more())
-    consumer_->OnTraceData(std::move(trace_packets), response.has_more());
-}
-
-void ConsumerIPCClientImpl::OnEnableTracingResponse(
-    ipc::AsyncResult<protos::gen::EnableTracingResponse> response) {
-  std::string error;
-  // |response| might be empty when the request gets rejected (if the connection
-  // with the service is dropped all outstanding requests are auto-rejected).
-  if (!response) {
-    error =
-        "EnableTracing IPC request rejected. This is likely due to a loss of "
-        "the traced connection";
-  } else {
-    error = response->error();
-  }
-  if (!response || response->disabled())
-    consumer_->OnTracingDisabled(error);
-}
-
-void ConsumerIPCClientImpl::FreeBuffers() {
-  if (!connected_) {
-    PERFETTO_DLOG("Cannot FreeBuffers(), not connected to tracing service");
-    return;
-  }
-
-  protos::gen::FreeBuffersRequest req;
-  ipc::Deferred<protos::gen::FreeBuffersResponse> async_response;
-  async_response.Bind(
-      [](ipc::AsyncResult<protos::gen::FreeBuffersResponse> response) {
-        if (!response)
-          PERFETTO_DLOG("FreeBuffers() failed");
-      });
-  consumer_port_.FreeBuffers(req, std::move(async_response));
-}
-
-void ConsumerIPCClientImpl::Flush(uint32_t timeout_ms, FlushCallback callback) {
-  if (!connected_) {
-    PERFETTO_DLOG("Cannot Flush(), not connected to tracing service");
-    return callback(/*success=*/false);
-  }
-
-  protos::gen::FlushRequest req;
-  req.set_timeout_ms(static_cast<uint32_t>(timeout_ms));
-  ipc::Deferred<protos::gen::FlushResponse> async_response;
-  async_response.Bind(
-      [callback](ipc::AsyncResult<protos::gen::FlushResponse> response) {
-        callback(!!response);
-      });
-  consumer_port_.Flush(req, std::move(async_response));
-}
-
-void ConsumerIPCClientImpl::Detach(const std::string& key) {
-  if (!connected_) {
-    PERFETTO_DLOG("Cannot Detach(), not connected to tracing service");
-    return;
-  }
-
-  protos::gen::DetachRequest req;
-  req.set_key(key);
-  ipc::Deferred<protos::gen::DetachResponse> async_response;
-  auto weak_this = weak_ptr_factory_.GetWeakPtr();
-
-  async_response.Bind(
-      [weak_this](ipc::AsyncResult<protos::gen::DetachResponse> response) {
-        if (weak_this)
-          weak_this->consumer_->OnDetach(!!response);
-      });
-  consumer_port_.Detach(req, std::move(async_response));
-}
-
-void ConsumerIPCClientImpl::Attach(const std::string& key) {
-  if (!connected_) {
-    PERFETTO_DLOG("Cannot Attach(), not connected to tracing service");
-    return;
-  }
-
-  {
-    protos::gen::AttachRequest req;
-    req.set_key(key);
-    ipc::Deferred<protos::gen::AttachResponse> async_response;
-    auto weak_this = weak_ptr_factory_.GetWeakPtr();
-
-    async_response.Bind(
-        [weak_this](ipc::AsyncResult<protos::gen::AttachResponse> response) {
-          if (!weak_this)
-            return;
-          if (!response) {
-            weak_this->consumer_->OnAttach(/*success=*/false, TraceConfig());
-            return;
-          }
-          const TraceConfig& trace_config = response->trace_config();
-
-          // If attached succesfully, also attach to the end-of-trace
-          // notificaton callback, via EnableTracing(attach_notification_only).
-          protos::gen::EnableTracingRequest enable_req;
-          enable_req.set_attach_notification_only(true);
-          ipc::Deferred<protos::gen::EnableTracingResponse> enable_resp;
-          enable_resp.Bind(
-              [weak_this](
-                  ipc::AsyncResult<protos::gen::EnableTracingResponse> resp) {
-                if (weak_this)
-                  weak_this->OnEnableTracingResponse(std::move(resp));
-              });
-          weak_this->consumer_port_.EnableTracing(enable_req,
-                                                  std::move(enable_resp));
-
-          weak_this->consumer_->OnAttach(/*success=*/true, trace_config);
-        });
-    consumer_port_.Attach(req, std::move(async_response));
-  }
-}
-
-void ConsumerIPCClientImpl::GetTraceStats() {
-  if (!connected_) {
-    PERFETTO_DLOG("Cannot GetTraceStats(), not connected to tracing service");
-    return;
-  }
-
-  protos::gen::GetTraceStatsRequest req;
-  ipc::Deferred<protos::gen::GetTraceStatsResponse> async_response;
-
-  // The IPC layer guarantees that callbacks are destroyed after this object
-  // is destroyed (by virtue of destroying the |consumer_port_|). In turn the
-  // contract of this class expects the caller to not destroy the Consumer class
-  // before having destroyed this class. Hence binding |this| here is safe.
-  async_response.Bind(
-      [this](ipc::AsyncResult<protos::gen::GetTraceStatsResponse> response) {
-        if (!response) {
-          consumer_->OnTraceStats(/*success=*/false, TraceStats());
-          return;
-        }
-        consumer_->OnTraceStats(/*success=*/true, response->trace_stats());
-      });
-  consumer_port_.GetTraceStats(req, std::move(async_response));
-}
-
-void ConsumerIPCClientImpl::ObserveEvents(uint32_t enabled_event_types) {
-  if (!connected_) {
-    PERFETTO_DLOG("Cannot ObserveEvents(), not connected to tracing service");
-    return;
-  }
-
-  protos::gen::ObserveEventsRequest req;
-  for (uint32_t i = 0; i < 32; i++) {
-    const uint32_t event_id = 1u << i;
-    if (enabled_event_types & event_id)
-      req.add_events_to_observe(static_cast<ObservableEvents::Type>(event_id));
-  }
-
-  ipc::Deferred<protos::gen::ObserveEventsResponse> async_response;
-  // The IPC layer guarantees that callbacks are destroyed after this object
-  // is destroyed (by virtue of destroying the |consumer_port_|). In turn the
-  // contract of this class expects the caller to not destroy the Consumer class
-  // before having destroyed this class. Hence binding |this| here is safe.
-  async_response.Bind(
-      [this](ipc::AsyncResult<protos::gen::ObserveEventsResponse> response) {
-        // Skip empty response, which the service sends to close the stream.
-        if (!response.has_more()) {
-          PERFETTO_DCHECK(!response.success());
-          return;
-        }
-        consumer_->OnObservableEvents(response->events());
-      });
-  consumer_port_.ObserveEvents(req, std::move(async_response));
-}
-
-void ConsumerIPCClientImpl::QueryServiceState(
-    QueryServiceStateCallback callback) {
-  if (!connected_) {
-    PERFETTO_DLOG(
-        "Cannot QueryServiceState(), not connected to tracing service");
-    return;
-  }
-
-  auto it = pending_query_svc_reqs_.insert(pending_query_svc_reqs_.end(),
-                                           {std::move(callback), {}});
-  protos::gen::QueryServiceStateRequest req;
-  ipc::Deferred<protos::gen::QueryServiceStateResponse> async_response;
-  auto weak_this = weak_ptr_factory_.GetWeakPtr();
-  async_response.Bind(
-      [weak_this,
-       it](ipc::AsyncResult<protos::gen::QueryServiceStateResponse> response) {
-        if (weak_this)
-          weak_this->OnQueryServiceStateResponse(std::move(response), it);
-      });
-  consumer_port_.QueryServiceState(req, std::move(async_response));
-}
-
-void ConsumerIPCClientImpl::OnQueryServiceStateResponse(
-    ipc::AsyncResult<protos::gen::QueryServiceStateResponse> response,
-    PendingQueryServiceRequests::iterator req_it) {
-  PERFETTO_DCHECK(req_it->callback);
-
-  if (!response) {
-    auto callback = std::move(req_it->callback);
-    pending_query_svc_reqs_.erase(req_it);
-    callback(false, TracingServiceState());
-    return;
-  }
-
-  // The QueryServiceState response can be split in several chunks if the
-  // service has several data sources. The client is supposed to merge all the
-  // replies. The easiest way to achieve this is to re-serialize the partial
-  // response and then re-decode the merged result in one shot.
-  std::vector<uint8_t>& merged_resp = req_it->merged_resp;
-  std::vector<uint8_t> part = response->service_state().SerializeAsArray();
-  merged_resp.insert(merged_resp.end(), part.begin(), part.end());
-
-  if (response.has_more())
-    return;
-
-  // All replies have been received. Decode the merged result and reply to the
-  // callback.
-  protos::gen::TracingServiceState svc_state;
-  bool ok = svc_state.ParseFromArray(merged_resp.data(), merged_resp.size());
-  if (!ok)
-    PERFETTO_ELOG("Failed to decode merged QueryServiceStateResponse");
-  auto callback = std::move(req_it->callback);
-  pending_query_svc_reqs_.erase(req_it);
-  callback(ok, std::move(svc_state));
-}
-
-void ConsumerIPCClientImpl::QueryCapabilities(
-    QueryCapabilitiesCallback callback) {
-  if (!connected_) {
-    PERFETTO_DLOG(
-        "Cannot QueryCapabilities(), not connected to tracing service");
-    return;
-  }
-
-  protos::gen::QueryCapabilitiesRequest req;
-  ipc::Deferred<protos::gen::QueryCapabilitiesResponse> async_response;
-  async_response.Bind(
-      [callback](
-          ipc::AsyncResult<protos::gen::QueryCapabilitiesResponse> response) {
-        if (!response) {
-          // If the IPC fails, we are talking to an older version of the service
-          // that didn't support QueryCapabilities at all. In this case return
-          // an empty capabilities message.
-          callback(TracingServiceCapabilities());
-        } else {
-          callback(response->capabilities());
-        }
-      });
-  consumer_port_.QueryCapabilities(req, std::move(async_response));
-}
-
-void ConsumerIPCClientImpl::SaveTraceForBugreport(
-    SaveTraceForBugreportCallback callback) {
-  if (!connected_) {
-    PERFETTO_DLOG(
-        "Cannot SaveTraceForBugreport(), not connected to tracing service");
-    return;
-  }
-
-  protos::gen::SaveTraceForBugreportRequest req;
-  ipc::Deferred<protos::gen::SaveTraceForBugreportResponse> async_response;
-  async_response.Bind(
-      [callback](ipc::AsyncResult<protos::gen::SaveTraceForBugreportResponse>
-                     response) {
-        if (!response) {
-          // If the IPC fails, we are talking to an older version of the service
-          // that didn't support SaveTraceForBugreport at all.
-          callback(
-              false,
-              "The tracing service doesn't support SaveTraceForBugreport()");
-        } else {
-          callback(response->success(), response->msg());
-        }
-      });
-  consumer_port_.SaveTraceForBugreport(req, std::move(async_response));
-}
-
-}  // namespace perfetto
-// gen_amalgamated begin source: src/tracing/ipc/producer/producer_ipc_client_impl.cc
-// gen_amalgamated begin header: src/tracing/ipc/producer/producer_ipc_client_impl.h
-// gen_amalgamated begin header: include/perfetto/ext/tracing/ipc/producer_ipc_client.h
-/*
- * Copyright (C) 2017 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef INCLUDE_PERFETTO_EXT_TRACING_IPC_PRODUCER_IPC_CLIENT_H_
-#define INCLUDE_PERFETTO_EXT_TRACING_IPC_PRODUCER_IPC_CLIENT_H_
-
-#include <memory>
-#include <string>
-
-// gen_amalgamated expanded: #include "perfetto/base/export.h"
-// gen_amalgamated expanded: #include "perfetto/ext/ipc/client.h"
-// gen_amalgamated expanded: #include "perfetto/ext/tracing/core/shared_memory.h"
-// gen_amalgamated expanded: #include "perfetto/ext/tracing/core/shared_memory_arbiter.h"
-// gen_amalgamated expanded: #include "perfetto/ext/tracing/core/tracing_service.h"
-
-namespace perfetto {
-
-class Producer;
-
-// Allows to connect to a remote Service through a UNIX domain socket.
-// Exposed to:
-//   Producer(s) of the tracing library.
-// Implemented in:
-//   src/tracing/ipc/producer/producer_ipc_client_impl.cc
-class PERFETTO_EXPORT ProducerIPCClient {
- public:
-  enum class ConnectionFlags {
-    // Fails immediately with OnConnect(false) if the service connection cannot
-    // be established.
-    kDefault = 0,
-
-    // Keeps retrying with exponential backoff indefinitely. The caller will
-    // never see an OnConnect(false).
-    kRetryIfUnreachable = 1,
-  };
-
-  // Connects to the producer port of the Service listening on the given
-  // |service_sock_name|. If the connection is successful, the OnConnect()
-  // method will be invoked asynchronously on the passed Producer interface. If
-  // the connection fails, OnDisconnect() will be invoked instead. The returned
-  // ProducerEndpoint serves also to delimit the scope of the callbacks invoked
-  // on the Producer interface: no more Producer callbacks are invoked
-  // immediately after its destruction and any pending callback will be dropped.
-  // To provide a producer-allocated shared memory buffer, both |shm| and
-  // |shm_arbiter| should be set. |shm_arbiter| should be an unbound
-  // SharedMemoryArbiter instance. When |shm| and |shm_arbiter| are provided,
-  // the service will attempt to adopt the provided SMB. If this fails, the
-  // ProducerEndpoint will disconnect, but the SMB and arbiter will remain valid
-  // until the client is destroyed.
-  //
-  // TODO(eseckler): Support adoption failure more gracefully.
-  // TODO(primiano): move all the existing use cases to the Connect(ConnArgs)
-  // below. Also move the functionality of ConnectionFlags into ConnArgs.
-  static std::unique_ptr<TracingService::ProducerEndpoint> Connect(
-      const char* service_sock_name,
-      Producer*,
-      const std::string& producer_name,
-      base::TaskRunner*,
-      TracingService::ProducerSMBScrapingMode smb_scraping_mode =
-          TracingService::ProducerSMBScrapingMode::kDefault,
-      size_t shared_memory_size_hint_bytes = 0,
-      size_t shared_memory_page_size_hint_bytes = 0,
-      std::unique_ptr<SharedMemory> shm = nullptr,
-      std::unique_ptr<SharedMemoryArbiter> shm_arbiter = nullptr,
-      ConnectionFlags = ConnectionFlags::kDefault);
-
-  // Overload of Connect() to support adopting a connected socket using
-  // ipc::Client::ConnArgs.
-  static std::unique_ptr<TracingService::ProducerEndpoint> Connect(
-      ipc::Client::ConnArgs,
-      Producer*,
-      const std::string& producer_name,
-      base::TaskRunner*,
-      TracingService::ProducerSMBScrapingMode smb_scraping_mode =
-          TracingService::ProducerSMBScrapingMode::kDefault,
-      size_t shared_memory_size_hint_bytes = 0,
-      size_t shared_memory_page_size_hint_bytes = 0,
-      std::unique_ptr<SharedMemory> shm = nullptr,
-      std::unique_ptr<SharedMemoryArbiter> shm_arbiter = nullptr);
-
- protected:
-  ProducerIPCClient() = delete;
-};
-
-}  // namespace perfetto
-
-#endif  // INCLUDE_PERFETTO_EXT_TRACING_IPC_PRODUCER_IPC_CLIENT_H_
-/*
- * Copyright (C) 2017 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef SRC_TRACING_IPC_PRODUCER_PRODUCER_IPC_CLIENT_IMPL_H_
-#define SRC_TRACING_IPC_PRODUCER_PRODUCER_IPC_CLIENT_IMPL_H_
-
-#include <stdint.h>
-
-#include <set>
-#include <vector>
-
-// gen_amalgamated expanded: #include "perfetto/ext/base/thread_checker.h"
-// gen_amalgamated expanded: #include "perfetto/ext/ipc/client.h"
-// gen_amalgamated expanded: #include "perfetto/ext/ipc/service_proxy.h"
-// gen_amalgamated expanded: #include "perfetto/ext/tracing/core/basic_types.h"
-// gen_amalgamated expanded: #include "perfetto/ext/tracing/core/shared_memory.h"
-// gen_amalgamated expanded: #include "perfetto/ext/tracing/core/tracing_service.h"
-// gen_amalgamated expanded: #include "perfetto/ext/tracing/ipc/producer_ipc_client.h"
-
-// gen_amalgamated expanded: #include "protos/perfetto/ipc/producer_port.ipc.h"
-
-namespace perfetto {
-
-namespace base {
-class TaskRunner;
-}  // namespace base
-
-class Producer;
-class SharedMemoryArbiter;
-
-// Exposes a Service endpoint to Producer(s), proxying all requests through a
-// IPC channel to the remote Service. This class is the glue layer between the
-// generic Service interface exposed to the clients of the library and the
-// actual IPC transport.
-class ProducerIPCClientImpl : public TracingService::ProducerEndpoint,
-                              public ipc::ServiceProxy::EventListener {
- public:
-  ProducerIPCClientImpl(ipc::Client::ConnArgs,
-                        Producer*,
-                        const std::string& producer_name,
-                        base::TaskRunner*,
-                        TracingService::ProducerSMBScrapingMode,
-                        size_t shared_memory_size_hint_bytes,
-                        size_t shared_memory_page_size_hint_bytes,
-                        std::unique_ptr<SharedMemory> shm,
-                        std::unique_ptr<SharedMemoryArbiter> shm_arbiter);
-  ~ProducerIPCClientImpl() override;
-
-  // TracingService::ProducerEndpoint implementation.
-  // These methods are invoked by the actual Producer(s) code by clients of the
-  // tracing library, which know nothing about the IPC transport.
-  void RegisterDataSource(const DataSourceDescriptor&) override;
-  void UnregisterDataSource(const std::string& name) override;
-  void RegisterTraceWriter(uint32_t writer_id, uint32_t target_buffer) override;
-  void UnregisterTraceWriter(uint32_t writer_id) override;
-  void CommitData(const CommitDataRequest&, CommitDataCallback) override;
-  void NotifyDataSourceStarted(DataSourceInstanceID) override;
-  void NotifyDataSourceStopped(DataSourceInstanceID) override;
-  void ActivateTriggers(const std::vector<std::string>&) override;
-  void Sync(std::function<void()> callback) override;
-
-  std::unique_ptr<TraceWriter> CreateTraceWriter(
-      BufferID target_buffer,
-      BufferExhaustedPolicy) override;
-  SharedMemoryArbiter* MaybeSharedMemoryArbiter() override;
-  bool IsShmemProvidedByProducer() const override;
-  void NotifyFlushComplete(FlushRequestID) override;
-  SharedMemory* shared_memory() const override;
-  size_t shared_buffer_page_size_kb() const override;
-
-  // ipc::ServiceProxy::EventListener implementation.
-  // These methods are invoked by the IPC layer, which knows nothing about
-  // tracing, producers and consumers.
-  void OnConnect() override;
-  void OnDisconnect() override;
-
-  ipc::Client* GetClientForTesting() { return ipc_channel_.get(); }
-
- private:
-  // Invoked soon after having established the connection with the service.
-  void OnConnectionInitialized(bool connection_succeeded,
-                               bool using_shmem_provided_by_producer,
-                               bool direct_smb_patching_supported);
-
-  // Invoked when the remote Service sends an IPC to tell us to do something
-  // (e.g. start/stop a data source).
-  void OnServiceRequest(const protos::gen::GetAsyncCommandResponse&);
-
-  // TODO think to destruction order, do we rely on any specific dtor sequence?
-  Producer* const producer_;
-  base::TaskRunner* const task_runner_;
-
-  // The object that owns the client socket and takes care of IPC traffic.
-  std::unique_ptr<ipc::Client> ipc_channel_;
-
-  // The proxy interface for the producer port of the service. It is bound
-  // to |ipc_channel_| and (de)serializes method invocations over the wire.
-  protos::gen::ProducerPortProxy producer_port_;
-
-  std::unique_ptr<SharedMemory> shared_memory_;
-  std::unique_ptr<SharedMemoryArbiter> shared_memory_arbiter_;
-  size_t shared_buffer_page_size_kb_ = 0;
-  std::set<DataSourceInstanceID> data_sources_setup_;
-  bool connected_ = false;
-  std::string const name_;
-  size_t shared_memory_page_size_hint_bytes_ = 0;
-  size_t shared_memory_size_hint_bytes_ = 0;
-  TracingService::ProducerSMBScrapingMode const smb_scraping_mode_;
-  bool is_shmem_provided_by_producer_ = false;
-  bool direct_smb_patching_supported_ = false;
-  std::vector<std::function<void()>> pending_sync_reqs_;
-  PERFETTO_THREAD_CHECKER(thread_checker_)
-};
-
-}  // namespace perfetto
-
-#endif  // SRC_TRACING_IPC_PRODUCER_PRODUCER_IPC_CLIENT_IMPL_H_
-/*
- * Copyright (C) 2017 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-// gen_amalgamated expanded: #include "src/tracing/ipc/producer/producer_ipc_client_impl.h"
-
-#include <inttypes.h>
-#include <string.h>
-
-// gen_amalgamated expanded: #include "perfetto/base/logging.h"
-// gen_amalgamated expanded: #include "perfetto/base/task_runner.h"
-// gen_amalgamated expanded: #include "perfetto/ext/base/version.h"
-// gen_amalgamated expanded: #include "perfetto/ext/ipc/client.h"
-// gen_amalgamated expanded: #include "perfetto/ext/tracing/core/commit_data_request.h"
-// gen_amalgamated expanded: #include "perfetto/ext/tracing/core/producer.h"
-// gen_amalgamated expanded: #include "perfetto/ext/tracing/core/shared_memory_arbiter.h"
-// gen_amalgamated expanded: #include "perfetto/ext/tracing/core/trace_writer.h"
-// gen_amalgamated expanded: #include "perfetto/tracing/core/data_source_config.h"
-// gen_amalgamated expanded: #include "perfetto/tracing/core/data_source_descriptor.h"
-// gen_amalgamated expanded: #include "perfetto/tracing/core/trace_config.h"
-// gen_amalgamated expanded: #include "src/tracing/ipc/posix_shared_memory.h"
-
-// TODO(fmayer): think to what happens when ProducerIPCClientImpl gets destroyed
-// w.r.t. the Producer pointer. Also think to lifetime of the Producer* during
-// the callbacks.
-
-namespace perfetto {
-
-// static. (Declared in include/tracing/ipc/producer_ipc_client.h).
-std::unique_ptr<TracingService::ProducerEndpoint> ProducerIPCClient::Connect(
-    const char* service_sock_name,
-    Producer* producer,
-    const std::string& producer_name,
-    base::TaskRunner* task_runner,
-    TracingService::ProducerSMBScrapingMode smb_scraping_mode,
-    size_t shared_memory_size_hint_bytes,
-    size_t shared_memory_page_size_hint_bytes,
-    std::unique_ptr<SharedMemory> shm,
-    std::unique_ptr<SharedMemoryArbiter> shm_arbiter,
-    ConnectionFlags conn_flags) {
-  return std::unique_ptr<TracingService::ProducerEndpoint>(
-      new ProducerIPCClientImpl(
-          {service_sock_name,
-           conn_flags ==
-               ProducerIPCClient::ConnectionFlags::kRetryIfUnreachable},
-          producer, producer_name, task_runner, smb_scraping_mode,
-          shared_memory_size_hint_bytes, shared_memory_page_size_hint_bytes,
-          std::move(shm), std::move(shm_arbiter)));
-}
-
-// static. (Declared in include/tracing/ipc/producer_ipc_client.h).
-std::unique_ptr<TracingService::ProducerEndpoint> ProducerIPCClient::Connect(
-    ipc::Client::ConnArgs conn_args,
-    Producer* producer,
-    const std::string& producer_name,
-    base::TaskRunner* task_runner,
-    TracingService::ProducerSMBScrapingMode smb_scraping_mode,
-    size_t shared_memory_size_hint_bytes,
-    size_t shared_memory_page_size_hint_bytes,
-    std::unique_ptr<SharedMemory> shm,
-    std::unique_ptr<SharedMemoryArbiter> shm_arbiter) {
-  return std::unique_ptr<TracingService::ProducerEndpoint>(
-      new ProducerIPCClientImpl(std::move(conn_args), producer, producer_name,
-                                task_runner, smb_scraping_mode,
-                                shared_memory_size_hint_bytes,
-                                shared_memory_page_size_hint_bytes,
-                                std::move(shm), std::move(shm_arbiter)));
-}
-
-ProducerIPCClientImpl::ProducerIPCClientImpl(
-    ipc::Client::ConnArgs conn_args,
-    Producer* producer,
-    const std::string& producer_name,
-    base::TaskRunner* task_runner,
-    TracingService::ProducerSMBScrapingMode smb_scraping_mode,
-    size_t shared_memory_size_hint_bytes,
-    size_t shared_memory_page_size_hint_bytes,
-    std::unique_ptr<SharedMemory> shm,
-    std::unique_ptr<SharedMemoryArbiter> shm_arbiter)
-    : producer_(producer),
-      task_runner_(task_runner),
-      ipc_channel_(
-          ipc::Client::CreateInstance(std::move(conn_args), task_runner)),
-      producer_port_(this /* event_listener */),
-      shared_memory_(std::move(shm)),
-      shared_memory_arbiter_(std::move(shm_arbiter)),
-      name_(producer_name),
-      shared_memory_page_size_hint_bytes_(shared_memory_page_size_hint_bytes),
-      shared_memory_size_hint_bytes_(shared_memory_size_hint_bytes),
-      smb_scraping_mode_(smb_scraping_mode) {
-  // Check for producer-provided SMB (used by Chrome for startup tracing).
-  if (shared_memory_) {
-    // We also expect a valid (unbound) arbiter. Bind it to this endpoint now.
-    PERFETTO_CHECK(shared_memory_arbiter_);
-    shared_memory_arbiter_->BindToProducerEndpoint(this, task_runner_);
-
-    // If the service accepts our SMB, then it must match our requested page
-    // layout. The protocol doesn't allow the service to change the size and
-    // layout when the SMB is provided by the producer.
-    shared_buffer_page_size_kb_ = shared_memory_page_size_hint_bytes_ / 1024;
-  }
-
-  ipc_channel_->BindService(producer_port_.GetWeakPtr());
-  PERFETTO_DCHECK_THREAD(thread_checker_);
-}
-
-ProducerIPCClientImpl::~ProducerIPCClientImpl() {
-  PERFETTO_DCHECK_THREAD(thread_checker_);
-}
-
-// Called by the IPC layer if the BindService() succeeds.
-void ProducerIPCClientImpl::OnConnect() {
-  PERFETTO_DCHECK_THREAD(thread_checker_);
-  connected_ = true;
-
-  // The IPC layer guarantees that any outstanding callback will be dropped on
-  // the floor if producer_port_ is destroyed between the request and the reply.
-  // Binding |this| is hence safe.
-  ipc::Deferred<protos::gen::InitializeConnectionResponse> on_init;
-  on_init.Bind(
-      [this](ipc::AsyncResult<protos::gen::InitializeConnectionResponse> resp) {
-        OnConnectionInitialized(
-            resp.success(),
-            resp.success() ? resp->using_shmem_provided_by_producer() : false,
-            resp.success() ? resp->direct_smb_patching_supported() : false);
-      });
-  protos::gen::InitializeConnectionRequest req;
-  req.set_producer_name(name_);
-  req.set_shared_memory_size_hint_bytes(
-      static_cast<uint32_t>(shared_memory_size_hint_bytes_));
-  req.set_shared_memory_page_size_hint_bytes(
-      static_cast<uint32_t>(shared_memory_page_size_hint_bytes_));
-  switch (smb_scraping_mode_) {
-    case TracingService::ProducerSMBScrapingMode::kDefault:
-      // No need to set the mode, it defaults to use the service default if
-      // unspecified.
-      break;
-    case TracingService::ProducerSMBScrapingMode::kEnabled:
-      req.set_smb_scraping_mode(
-          protos::gen::InitializeConnectionRequest::SMB_SCRAPING_ENABLED);
-      break;
-    case TracingService::ProducerSMBScrapingMode::kDisabled:
-      req.set_smb_scraping_mode(
-          protos::gen::InitializeConnectionRequest::SMB_SCRAPING_DISABLED);
-      break;
-  }
-
-  int shm_fd = -1;
-  if (shared_memory_) {
-    shm_fd = static_cast<PosixSharedMemory*>(shared_memory_.get())->fd();
-    req.set_producer_provided_shmem(true);
-  }
-
-#if PERFETTO_DCHECK_IS_ON()
-  req.set_build_flags(
-      protos::gen::InitializeConnectionRequest::BUILD_FLAGS_DCHECKS_ON);
-#else
-  req.set_build_flags(
-      protos::gen::InitializeConnectionRequest::BUILD_FLAGS_DCHECKS_OFF);
-#endif
-  req.set_sdk_version(base::GetVersionString());
-  producer_port_.InitializeConnection(req, std::move(on_init), shm_fd);
-
-  // Create the back channel to receive commands from the Service.
-  ipc::Deferred<protos::gen::GetAsyncCommandResponse> on_cmd;
-  on_cmd.Bind(
-      [this](ipc::AsyncResult<protos::gen::GetAsyncCommandResponse> resp) {
-        if (!resp)
-          return;  // The IPC channel was closed and |resp| was auto-rejected.
-        OnServiceRequest(*resp);
-      });
-  producer_port_.GetAsyncCommand(protos::gen::GetAsyncCommandRequest(),
-                                 std::move(on_cmd));
-
-  // If there are pending Sync() requests, send them now.
-  for (const auto& pending_sync : pending_sync_reqs_)
-    Sync(std::move(pending_sync));
-  pending_sync_reqs_.clear();
-}
-
-void ProducerIPCClientImpl::OnDisconnect() {
-  PERFETTO_DCHECK_THREAD(thread_checker_);
-  PERFETTO_DLOG("Tracing service connection failure");
-  connected_ = false;
-  data_sources_setup_.clear();
-  producer_->OnDisconnect();  // Note: may delete |this|.
-}
-
-void ProducerIPCClientImpl::OnConnectionInitialized(
-    bool connection_succeeded,
-    bool using_shmem_provided_by_producer,
-    bool direct_smb_patching_supported) {
-  PERFETTO_DCHECK_THREAD(thread_checker_);
-  // If connection_succeeded == false, the OnDisconnect() call will follow next
-  // and there we'll notify the |producer_|. TODO: add a test for this.
-  if (!connection_succeeded)
-    return;
-  is_shmem_provided_by_producer_ = using_shmem_provided_by_producer;
-  direct_smb_patching_supported_ = direct_smb_patching_supported;
-  producer_->OnConnect();
-
-  // Bail out if the service failed to adopt our producer-allocated SMB.
-  // TODO(eseckler): Handle adoption failure more gracefully.
-  if (shared_memory_ && !is_shmem_provided_by_producer_) {
-    PERFETTO_DLOG("Service failed adopt producer-provided SMB, disconnecting.");
-    ipc_channel_.reset();
-    return;
-  }
-}
-
-void ProducerIPCClientImpl::OnServiceRequest(
-    const protos::gen::GetAsyncCommandResponse& cmd) {
-  PERFETTO_DCHECK_THREAD(thread_checker_);
-
-  // This message is sent only when connecting to a service running Android Q+.
-  // See comment below in kStartDataSource.
-  if (cmd.has_setup_data_source()) {
-    const auto& req = cmd.setup_data_source();
-    const DataSourceInstanceID dsid = req.new_instance_id();
-    data_sources_setup_.insert(dsid);
-    producer_->SetupDataSource(dsid, req.config());
-    return;
-  }
-
-  if (cmd.has_start_data_source()) {
-    const auto& req = cmd.start_data_source();
-    const DataSourceInstanceID dsid = req.new_instance_id();
-    const DataSourceConfig& cfg = req.config();
-    if (!data_sources_setup_.count(dsid)) {
-      // When connecting with an older (Android P) service, the service will not
-      // send a SetupDataSource message. We synthesize it here in that case.
-      producer_->SetupDataSource(dsid, cfg);
-    }
-    producer_->StartDataSource(dsid, cfg);
-    return;
-  }
-
-  if (cmd.has_stop_data_source()) {
-    const DataSourceInstanceID dsid = cmd.stop_data_source().instance_id();
-    producer_->StopDataSource(dsid);
-    data_sources_setup_.erase(dsid);
-    return;
-  }
-
-  if (cmd.has_setup_tracing()) {
-    base::ScopedFile shmem_fd = ipc_channel_->TakeReceivedFD();
-    if (shmem_fd) {
-      // This is the nominal case used in most configurations, where the service
-      // provides the SMB.
-      PERFETTO_CHECK(!is_shmem_provided_by_producer_ && !shared_memory_);
-      // TODO(primiano): handle mmap failure in case of OOM.
-      shared_memory_ =
-          PosixSharedMemory::AttachToFd(std::move(shmem_fd),
-                                        /*require_seals_if_supported=*/false);
-      shared_buffer_page_size_kb_ =
-          cmd.setup_tracing().shared_buffer_page_size_kb();
-      shared_memory_arbiter_ = SharedMemoryArbiter::CreateInstance(
-          shared_memory_.get(), shared_buffer_page_size_kb_ * 1024, this,
-          task_runner_);
-      if (direct_smb_patching_supported_)
-        shared_memory_arbiter_->SetDirectSMBPatchingSupportedByService();
-    } else {
-      // Producer-provided SMB (used by Chrome for startup tracing).
-      PERFETTO_CHECK(is_shmem_provided_by_producer_ && shared_memory_ &&
-                     shared_memory_arbiter_);
-    }
-    producer_->OnTracingSetup();
-    return;
-  }
-
-  if (cmd.has_flush()) {
-    // This cast boilerplate is required only because protobuf uses its own
-    // uint64 and not stdint's uint64_t. On some 64 bit archs they differ on the
-    // type (long vs long long) even though they have the same size.
-    const auto* data_source_ids = cmd.flush().data_source_ids().data();
-    static_assert(sizeof(data_source_ids[0]) == sizeof(DataSourceInstanceID),
-                  "data_source_ids should be 64-bit");
-    producer_->Flush(
-        cmd.flush().request_id(),
-        reinterpret_cast<const DataSourceInstanceID*>(data_source_ids),
-        static_cast<size_t>(cmd.flush().data_source_ids().size()));
-    return;
-  }
-
-  if (cmd.has_clear_incremental_state()) {
-    const auto* data_source_ids =
-        cmd.clear_incremental_state().data_source_ids().data();
-    static_assert(sizeof(data_source_ids[0]) == sizeof(DataSourceInstanceID),
-                  "data_source_ids should be 64-bit");
-    producer_->ClearIncrementalState(
-        reinterpret_cast<const DataSourceInstanceID*>(data_source_ids),
-        static_cast<size_t>(
-            cmd.clear_incremental_state().data_source_ids().size()));
-    return;
-  }
-
-  PERFETTO_DFATAL("Unknown async request received from tracing service");
-}
-
-void ProducerIPCClientImpl::RegisterDataSource(
-    const DataSourceDescriptor& descriptor) {
-  PERFETTO_DCHECK_THREAD(thread_checker_);
-  if (!connected_) {
-    PERFETTO_DLOG(
-        "Cannot RegisterDataSource(), not connected to tracing service");
-  }
-  protos::gen::RegisterDataSourceRequest req;
-  *req.mutable_data_source_descriptor() = descriptor;
-  ipc::Deferred<protos::gen::RegisterDataSourceResponse> async_response;
-  async_response.Bind(
-      [](ipc::AsyncResult<protos::gen::RegisterDataSourceResponse> response) {
-        if (!response)
-          PERFETTO_DLOG("RegisterDataSource() failed: connection reset");
-      });
-  producer_port_.RegisterDataSource(req, std::move(async_response));
-}
-
-void ProducerIPCClientImpl::UnregisterDataSource(const std::string& name) {
-  PERFETTO_DCHECK_THREAD(thread_checker_);
-  if (!connected_) {
-    PERFETTO_DLOG(
-        "Cannot UnregisterDataSource(), not connected to tracing service");
-    return;
-  }
-  protos::gen::UnregisterDataSourceRequest req;
-  req.set_data_source_name(name);
-  producer_port_.UnregisterDataSource(
-      req, ipc::Deferred<protos::gen::UnregisterDataSourceResponse>());
-}
-
-void ProducerIPCClientImpl::RegisterTraceWriter(uint32_t writer_id,
-                                                uint32_t target_buffer) {
-  PERFETTO_DCHECK_THREAD(thread_checker_);
-  if (!connected_) {
-    PERFETTO_DLOG(
-        "Cannot RegisterTraceWriter(), not connected to tracing service");
-    return;
-  }
-  protos::gen::RegisterTraceWriterRequest req;
-  req.set_trace_writer_id(writer_id);
-  req.set_target_buffer(target_buffer);
-  producer_port_.RegisterTraceWriter(
-      req, ipc::Deferred<protos::gen::RegisterTraceWriterResponse>());
-}
-
-void ProducerIPCClientImpl::UnregisterTraceWriter(uint32_t writer_id) {
-  PERFETTO_DCHECK_THREAD(thread_checker_);
-  if (!connected_) {
-    PERFETTO_DLOG(
-        "Cannot UnregisterTraceWriter(), not connected to tracing service");
-    return;
-  }
-  protos::gen::UnregisterTraceWriterRequest req;
-  req.set_trace_writer_id(writer_id);
-  producer_port_.UnregisterTraceWriter(
-      req, ipc::Deferred<protos::gen::UnregisterTraceWriterResponse>());
-}
-
-void ProducerIPCClientImpl::CommitData(const CommitDataRequest& req,
-                                       CommitDataCallback callback) {
-  PERFETTO_DCHECK_THREAD(thread_checker_);
-  if (!connected_) {
-    PERFETTO_DLOG("Cannot CommitData(), not connected to tracing service");
-    return;
-  }
-  ipc::Deferred<protos::gen::CommitDataResponse> async_response;
-  // TODO(primiano): add a test that destroys ProducerIPCClientImpl soon after
-  // this call and checks that the callback is dropped.
-  if (callback) {
-    async_response.Bind(
-        [callback](ipc::AsyncResult<protos::gen::CommitDataResponse> response) {
-          if (!response) {
-            PERFETTO_DLOG("CommitData() failed: connection reset");
-            return;
-          }
-          callback();
-        });
-  }
-  producer_port_.CommitData(req, std::move(async_response));
-}
-
-void ProducerIPCClientImpl::NotifyDataSourceStarted(DataSourceInstanceID id) {
-  PERFETTO_DCHECK_THREAD(thread_checker_);
-  if (!connected_) {
-    PERFETTO_DLOG(
-        "Cannot NotifyDataSourceStarted(), not connected to tracing service");
-    return;
-  }
-  protos::gen::NotifyDataSourceStartedRequest req;
-  req.set_data_source_id(id);
-  producer_port_.NotifyDataSourceStarted(
-      req, ipc::Deferred<protos::gen::NotifyDataSourceStartedResponse>());
-}
-
-void ProducerIPCClientImpl::NotifyDataSourceStopped(DataSourceInstanceID id) {
-  PERFETTO_DCHECK_THREAD(thread_checker_);
-  if (!connected_) {
-    PERFETTO_DLOG(
-        "Cannot NotifyDataSourceStopped(), not connected to tracing service");
-    return;
-  }
-  protos::gen::NotifyDataSourceStoppedRequest req;
-  req.set_data_source_id(id);
-  producer_port_.NotifyDataSourceStopped(
-      req, ipc::Deferred<protos::gen::NotifyDataSourceStoppedResponse>());
-}
-
-void ProducerIPCClientImpl::ActivateTriggers(
-    const std::vector<std::string>& triggers) {
-  PERFETTO_DCHECK_THREAD(thread_checker_);
-  if (!connected_) {
-    PERFETTO_DLOG(
-        "Cannot ActivateTriggers(), not connected to tracing service");
-    return;
-  }
-  protos::gen::ActivateTriggersRequest proto_req;
-  for (const auto& name : triggers) {
-    *proto_req.add_trigger_names() = name;
-  }
-  producer_port_.ActivateTriggers(
-      proto_req, ipc::Deferred<protos::gen::ActivateTriggersResponse>());
-}
-
-void ProducerIPCClientImpl::Sync(std::function<void()> callback) {
-  PERFETTO_DCHECK_THREAD(thread_checker_);
-  if (!connected_) {
-    pending_sync_reqs_.emplace_back(std::move(callback));
-    return;
-  }
-  ipc::Deferred<protos::gen::SyncResponse> resp;
-  resp.Bind([callback](ipc::AsyncResult<protos::gen::SyncResponse>) {
-    // Here we ACK the callback even if the service replies with a failure
-    // (i.e. the service is too old and doesn't understand Sync()). In that
-    // case the service has still seen the request, the IPC roundtrip is
-    // still a (weaker) linearization fence.
-    callback();
-  });
-  producer_port_.Sync(protos::gen::SyncRequest(), std::move(resp));
-}
-
-std::unique_ptr<TraceWriter> ProducerIPCClientImpl::CreateTraceWriter(
-    BufferID target_buffer,
-    BufferExhaustedPolicy buffer_exhausted_policy) {
-  // This method can be called by different threads. |shared_memory_arbiter_| is
-  // thread-safe but be aware of accessing any other state in this function.
-  return shared_memory_arbiter_->CreateTraceWriter(target_buffer,
-                                                   buffer_exhausted_policy);
-}
-
-SharedMemoryArbiter* ProducerIPCClientImpl::MaybeSharedMemoryArbiter() {
-  return shared_memory_arbiter_.get();
-}
-
-bool ProducerIPCClientImpl::IsShmemProvidedByProducer() const {
-  return is_shmem_provided_by_producer_;
-}
-
-void ProducerIPCClientImpl::NotifyFlushComplete(FlushRequestID req_id) {
-  return shared_memory_arbiter_->NotifyFlushComplete(req_id);
-}
-
-SharedMemory* ProducerIPCClientImpl::shared_memory() const {
-  return shared_memory_.get();
-}
-
-size_t ProducerIPCClientImpl::shared_buffer_page_size_kb() const {
-  return shared_buffer_page_size_kb_;
-}
-
-}  // namespace perfetto
-// gen_amalgamated begin source: src/tracing/ipc/service/consumer_ipc_service.cc
-// gen_amalgamated begin header: src/tracing/ipc/service/consumer_ipc_service.h
-/*
- * Copyright (C) 2017 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef SRC_TRACING_IPC_SERVICE_CONSUMER_IPC_SERVICE_H_
-#define SRC_TRACING_IPC_SERVICE_CONSUMER_IPC_SERVICE_H_
-
-#include <list>
-#include <map>
-#include <memory>
-#include <string>
-
-// gen_amalgamated expanded: #include "perfetto/ext/base/weak_ptr.h"
-// gen_amalgamated expanded: #include "perfetto/ext/ipc/basic_types.h"
-// gen_amalgamated expanded: #include "perfetto/ext/tracing/core/consumer.h"
-// gen_amalgamated expanded: #include "perfetto/ext/tracing/core/tracing_service.h"
-// gen_amalgamated expanded: #include "perfetto/tracing/core/forward_decls.h"
-// gen_amalgamated expanded: #include "protos/perfetto/ipc/consumer_port.ipc.h"
-
-namespace perfetto {
-
-namespace ipc {
-class Host;
-}  // namespace ipc
-
-// Implements the Consumer port of the IPC service. This class proxies requests
-// and responses between the core service logic (|svc_|) and remote Consumer(s)
-// on the IPC socket, through the methods overriddden from ConsumerPort.
-class ConsumerIPCService : public protos::gen::ConsumerPort {
- public:
-  explicit ConsumerIPCService(TracingService* core_service);
-  ~ConsumerIPCService() override;
-
-  // ConsumerPort implementation (from .proto IPC definition).
-  void EnableTracing(const protos::gen::EnableTracingRequest&,
-                     DeferredEnableTracingResponse) override;
-  void StartTracing(const protos::gen::StartTracingRequest&,
-                    DeferredStartTracingResponse) override;
-  void ChangeTraceConfig(const protos::gen::ChangeTraceConfigRequest&,
-                         DeferredChangeTraceConfigResponse) override;
-  void DisableTracing(const protos::gen::DisableTracingRequest&,
-                      DeferredDisableTracingResponse) override;
-  void ReadBuffers(const protos::gen::ReadBuffersRequest&,
-                   DeferredReadBuffersResponse) override;
-  void FreeBuffers(const protos::gen::FreeBuffersRequest&,
-                   DeferredFreeBuffersResponse) override;
-  void Flush(const protos::gen::FlushRequest&, DeferredFlushResponse) override;
-  void Detach(const protos::gen::DetachRequest&,
-              DeferredDetachResponse) override;
-  void Attach(const protos::gen::AttachRequest&,
-              DeferredAttachResponse) override;
-  void GetTraceStats(const protos::gen::GetTraceStatsRequest&,
-                     DeferredGetTraceStatsResponse) override;
-  void ObserveEvents(const protos::gen::ObserveEventsRequest&,
-                     DeferredObserveEventsResponse) override;
-  void QueryServiceState(const protos::gen::QueryServiceStateRequest&,
-                         DeferredQueryServiceStateResponse) override;
-  void QueryCapabilities(const protos::gen::QueryCapabilitiesRequest&,
-                         DeferredQueryCapabilitiesResponse) override;
-  void SaveTraceForBugreport(const protos::gen::SaveTraceForBugreportRequest&,
-                             DeferredSaveTraceForBugreportResponse) override;
-  void OnClientDisconnected() override;
-
- private:
-  // Acts like a Consumer with the core Service business logic (which doesn't
-  // know anything about the remote transport), but all it does is proxying
-  // methods to the remote Consumer on the other side of the IPC channel.
-  class RemoteConsumer : public Consumer {
-   public:
-    RemoteConsumer();
-    ~RemoteConsumer() override;
-
-    // These methods are called by the |core_service_| business logic. There is
-    // no connection here, these methods are posted straight away.
-    void OnConnect() override;
-    void OnDisconnect() override;
-    void OnTracingDisabled(const std::string& error) override;
-    void OnTraceData(std::vector<TracePacket>, bool has_more) override;
-    void OnDetach(bool) override;
-    void OnAttach(bool, const TraceConfig&) override;
-    void OnTraceStats(bool, const TraceStats&) override;
-    void OnObservableEvents(const ObservableEvents&) override;
-
-    void CloseObserveEventsResponseStream();
-
-    // The interface obtained from the core service business logic through
-    // TracingService::ConnectConsumer(this). This allows to invoke methods for
-    // a specific Consumer on the Service business logic.
-    std::unique_ptr<TracingService::ConsumerEndpoint> service_endpoint;
-
-    // After ReadBuffers() is invoked, this binds the async callback that
-    // allows to stream trace packets back to the client.
-    DeferredReadBuffersResponse read_buffers_response;
-
-    // After EnableTracing() is invoked, this binds the async callback that
-    // allows to send the OnTracingDisabled notification.
-    DeferredEnableTracingResponse enable_tracing_response;
-
-    // After Detach() is invoked, this binds the async callback that allows to
-    // send the session id to the consumer.
-    DeferredDetachResponse detach_response;
-
-    // As above, but for the Attach() case.
-    DeferredAttachResponse attach_response;
-
-    // As above, but for GetTraceStats().
-    DeferredGetTraceStatsResponse get_trace_stats_response;
-
-    // After ObserveEvents() is invoked, this binds the async callback that
-    // allows to stream ObservableEvents back to the client.
-    DeferredObserveEventsResponse observe_events_response;
-  };
-
-  // This has to be a container that doesn't invalidate iterators.
-  using PendingFlushResponses = std::list<DeferredFlushResponse>;
-  using PendingQuerySvcResponses = std::list<DeferredQueryServiceStateResponse>;
-  using PendingQueryCapabilitiesResponses =
-      std::list<DeferredQueryCapabilitiesResponse>;
-  using PendingSaveTraceForBugreportResponses =
-      std::list<DeferredSaveTraceForBugreportResponse>;
-
-  ConsumerIPCService(const ConsumerIPCService&) = delete;
-  ConsumerIPCService& operator=(const ConsumerIPCService&) = delete;
-
-  // Returns the ConsumerEndpoint in the core business logic that corresponds to
-  // the current IPC request.
-  RemoteConsumer* GetConsumerForCurrentRequest();
-
-  void OnFlushCallback(bool success, PendingFlushResponses::iterator);
-  void OnQueryServiceCallback(bool success,
-                              const TracingServiceState&,
-                              PendingQuerySvcResponses::iterator);
-  void OnQueryCapabilitiesCallback(const TracingServiceCapabilities&,
-                                   PendingQueryCapabilitiesResponses::iterator);
-  void OnSaveTraceForBugreportCallback(
-      bool success,
-      const std::string& msg,
-      PendingSaveTraceForBugreportResponses::iterator);
-
-  TracingService* const core_service_;
-
-  // Maps IPC clients to ConsumerEndpoint instances registered on the
-  // |core_service_| business logic.
-  std::map<ipc::ClientID, std::unique_ptr<RemoteConsumer>> consumers_;
-
-  PendingFlushResponses pending_flush_responses_;
-  PendingQuerySvcResponses pending_query_service_responses_;
-  PendingQueryCapabilitiesResponses pending_query_capabilities_responses_;
-  PendingSaveTraceForBugreportResponses pending_bugreport_responses_;
-
-  base::WeakPtrFactory<ConsumerIPCService> weak_ptr_factory_;  // Keep last.
-};
-
-}  // namespace perfetto
-
-#endif  // SRC_TRACING_IPC_SERVICE_CONSUMER_IPC_SERVICE_H_
-/*
- * Copyright (C) 2017 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-// gen_amalgamated expanded: #include "src/tracing/ipc/service/consumer_ipc_service.h"
-
-#include <inttypes.h>
-
-// gen_amalgamated expanded: #include "perfetto/base/logging.h"
-// gen_amalgamated expanded: #include "perfetto/base/task_runner.h"
-// gen_amalgamated expanded: #include "perfetto/ext/base/scoped_file.h"
-// gen_amalgamated expanded: #include "perfetto/ext/ipc/basic_types.h"
-// gen_amalgamated expanded: #include "perfetto/ext/ipc/host.h"
-// gen_amalgamated expanded: #include "perfetto/ext/tracing/core/shared_memory_abi.h"
-// gen_amalgamated expanded: #include "perfetto/ext/tracing/core/slice.h"
-// gen_amalgamated expanded: #include "perfetto/ext/tracing/core/trace_packet.h"
-// gen_amalgamated expanded: #include "perfetto/ext/tracing/core/trace_stats.h"
-// gen_amalgamated expanded: #include "perfetto/ext/tracing/core/tracing_service.h"
-// gen_amalgamated expanded: #include "perfetto/tracing/core/trace_config.h"
-// gen_amalgamated expanded: #include "perfetto/tracing/core/tracing_service_capabilities.h"
-// gen_amalgamated expanded: #include "perfetto/tracing/core/tracing_service_state.h"
-
-namespace perfetto {
-
-ConsumerIPCService::ConsumerIPCService(TracingService* core_service)
-    : core_service_(core_service), weak_ptr_factory_(this) {}
-
-ConsumerIPCService::~ConsumerIPCService() = default;
-
-ConsumerIPCService::RemoteConsumer*
-ConsumerIPCService::GetConsumerForCurrentRequest() {
-  const ipc::ClientID ipc_client_id = ipc::Service::client_info().client_id();
-  const uid_t uid = ipc::Service::client_info().uid();
-  PERFETTO_CHECK(ipc_client_id);
-  auto it = consumers_.find(ipc_client_id);
-  if (it == consumers_.end()) {
-    auto* remote_consumer = new RemoteConsumer();
-    consumers_[ipc_client_id].reset(remote_consumer);
-    remote_consumer->service_endpoint =
-        core_service_->ConnectConsumer(remote_consumer, uid);
-    return remote_consumer;
-  }
-  return it->second.get();
-}
-
-// Called by the IPC layer.
-void ConsumerIPCService::OnClientDisconnected() {
-  ipc::ClientID client_id = ipc::Service::client_info().client_id();
-  consumers_.erase(client_id);
-}
-
-// Called by the IPC layer.
-void ConsumerIPCService::EnableTracing(
-    const protos::gen::EnableTracingRequest& req,
-    DeferredEnableTracingResponse resp) {
-  RemoteConsumer* remote_consumer = GetConsumerForCurrentRequest();
-  if (req.attach_notification_only()) {
-    remote_consumer->enable_tracing_response = std::move(resp);
-    return;
-  }
-  const TraceConfig& trace_config = req.trace_config();
-  base::ScopedFile fd;
-  if (trace_config.write_into_file() && trace_config.output_path().empty())
-    fd = ipc::Service::TakeReceivedFD();
-  remote_consumer->service_endpoint->EnableTracing(trace_config, std::move(fd));
-  remote_consumer->enable_tracing_response = std::move(resp);
-}
-
-// Called by the IPC layer.
-void ConsumerIPCService::StartTracing(const protos::gen::StartTracingRequest&,
-                                      DeferredStartTracingResponse resp) {
-  RemoteConsumer* remote_consumer = GetConsumerForCurrentRequest();
-  remote_consumer->service_endpoint->StartTracing();
-  resp.Resolve(ipc::AsyncResult<protos::gen::StartTracingResponse>::Create());
-}
-
-// Called by the IPC layer.
-void ConsumerIPCService::ChangeTraceConfig(
-    const protos::gen::ChangeTraceConfigRequest& req,
-    DeferredChangeTraceConfigResponse resp) {
-  RemoteConsumer* remote_consumer = GetConsumerForCurrentRequest();
-  remote_consumer->service_endpoint->ChangeTraceConfig(req.trace_config());
-  resp.Resolve(
-      ipc::AsyncResult<protos::gen::ChangeTraceConfigResponse>::Create());
-}
-
-// Called by the IPC layer.
-void ConsumerIPCService::DisableTracing(
-    const protos::gen::DisableTracingRequest&,
-    DeferredDisableTracingResponse resp) {
-  GetConsumerForCurrentRequest()->service_endpoint->DisableTracing();
-  resp.Resolve(ipc::AsyncResult<protos::gen::DisableTracingResponse>::Create());
-}
-
-// Called by the IPC layer.
-void ConsumerIPCService::ReadBuffers(const protos::gen::ReadBuffersRequest&,
-                                     DeferredReadBuffersResponse resp) {
-  RemoteConsumer* remote_consumer = GetConsumerForCurrentRequest();
-  remote_consumer->read_buffers_response = std::move(resp);
-  remote_consumer->service_endpoint->ReadBuffers();
-}
-
-// Called by the IPC layer.
-void ConsumerIPCService::FreeBuffers(const protos::gen::FreeBuffersRequest&,
-                                     DeferredFreeBuffersResponse resp) {
-  GetConsumerForCurrentRequest()->service_endpoint->FreeBuffers();
-  resp.Resolve(ipc::AsyncResult<protos::gen::FreeBuffersResponse>::Create());
-}
-
-// Called by the IPC layer.
-void ConsumerIPCService::Flush(const protos::gen::FlushRequest& req,
-                               DeferredFlushResponse resp) {
-  auto it = pending_flush_responses_.insert(pending_flush_responses_.end(),
-                                            std::move(resp));
-  auto weak_this = weak_ptr_factory_.GetWeakPtr();
-  auto callback = [weak_this, it](bool success) {
-    if (weak_this)
-      weak_this->OnFlushCallback(success, std::move(it));
-  };
-  GetConsumerForCurrentRequest()->service_endpoint->Flush(req.timeout_ms(),
-                                                          std::move(callback));
-}
-
-// Called by the IPC layer.
-void ConsumerIPCService::Detach(const protos::gen::DetachRequest& req,
-                                DeferredDetachResponse resp) {
-  // OnDetach() will resolve the |detach_response|.
-  RemoteConsumer* remote_consumer = GetConsumerForCurrentRequest();
-  remote_consumer->detach_response = std::move(resp);
-  remote_consumer->service_endpoint->Detach(req.key());
-}
-
-// Called by the IPC layer.
-void ConsumerIPCService::Attach(const protos::gen::AttachRequest& req,
-                                DeferredAttachResponse resp) {
-  // OnAttach() will resolve the |attach_response|.
-  RemoteConsumer* remote_consumer = GetConsumerForCurrentRequest();
-  remote_consumer->attach_response = std::move(resp);
-  remote_consumer->service_endpoint->Attach(req.key());
-}
-
-// Called by the IPC layer.
-void ConsumerIPCService::GetTraceStats(const protos::gen::GetTraceStatsRequest&,
-                                       DeferredGetTraceStatsResponse resp) {
-  // OnTraceStats() will resolve the |get_trace_stats_response|.
-  RemoteConsumer* remote_consumer = GetConsumerForCurrentRequest();
-  remote_consumer->get_trace_stats_response = std::move(resp);
-  remote_consumer->service_endpoint->GetTraceStats();
-}
-
-// Called by the IPC layer.
-void ConsumerIPCService::ObserveEvents(
-    const protos::gen::ObserveEventsRequest& req,
-    DeferredObserveEventsResponse resp) {
-  RemoteConsumer* remote_consumer = GetConsumerForCurrentRequest();
-
-  // If there's a prior stream, close it so that client can clean it up.
-  remote_consumer->CloseObserveEventsResponseStream();
-
-  remote_consumer->observe_events_response = std::move(resp);
-
-  uint32_t events_mask = 0;
-  for (const auto& type : req.events_to_observe()) {
-    events_mask |= static_cast<uint32_t>(type);
-  }
-  remote_consumer->service_endpoint->ObserveEvents(events_mask);
-
-  // If no events are to be observed, close the stream immediately so that the
-  // client can clean up.
-  if (events_mask == 0)
-    remote_consumer->CloseObserveEventsResponseStream();
-}
-
-// Called by the IPC layer.
-void ConsumerIPCService::QueryServiceState(
-    const protos::gen::QueryServiceStateRequest&,
-    DeferredQueryServiceStateResponse resp) {
-  RemoteConsumer* remote_consumer = GetConsumerForCurrentRequest();
-  auto it = pending_query_service_responses_.insert(
-      pending_query_service_responses_.end(), std::move(resp));
-  auto weak_this = weak_ptr_factory_.GetWeakPtr();
-  auto callback = [weak_this, it](bool success,
-                                  const TracingServiceState& svc_state) {
-    if (weak_this)
-      weak_this->OnQueryServiceCallback(success, svc_state, std::move(it));
-  };
-  remote_consumer->service_endpoint->QueryServiceState(callback);
-}
-
-// Called by the service in response to service_endpoint->QueryServiceState().
-void ConsumerIPCService::OnQueryServiceCallback(
-    bool success,
-    const TracingServiceState& svc_state,
-    PendingQuerySvcResponses::iterator pending_response_it) {
-  DeferredQueryServiceStateResponse response(std::move(*pending_response_it));
-  pending_query_service_responses_.erase(pending_response_it);
-  if (!success) {
-    response.Reject();
-    return;
-  }
-
-  // The TracingServiceState object might be too big to fit into a single IPC
-  // message because it contains the DataSourceDescriptor of each data source.
-  // Here we split it in chunks to fit in the IPC limit, observing the
-  // following rule: each chunk must be invididually a valid TracingServiceState
-  // message; all the chunks concatenated together must form the original
-  // message. This is to deal with the legacy API that was just sending one
-  // whole message (failing in presence of too many data sources, b/153142114).
-  // The message is split as follows: we take the whole TracingServiceState,
-  // take out the data sources section (which is a top-level repeated field)
-  // and re-add them one-by-one. If, in the process of appending, the IPC msg
-  // size is reached, a new chunk is created. This assumes that the rest of
-  // TracingServiceState fits in one IPC message and each DataSourceDescriptor
-  // fits in the worst case in a dedicated message (which is true, because
-  // otherwise the RegisterDataSource() which passes the descriptor in the first
-  // place would fail).
-
-  std::vector<uint8_t> chunked_reply;
-
-  // Transmits the current chunk and starts a new one.
-  bool sent_eof = false;
-  auto send_chunked_reply = [&chunked_reply, &response,
-                             &sent_eof](bool has_more) {
-    PERFETTO_CHECK(!sent_eof);
-    sent_eof = !has_more;
-    auto resp =
-        ipc::AsyncResult<protos::gen::QueryServiceStateResponse>::Create();
-    resp.set_has_more(has_more);
-    PERFETTO_CHECK(resp->mutable_service_state()->ParseFromArray(
-        chunked_reply.data(), chunked_reply.size()));
-    chunked_reply.clear();
-    response.Resolve(std::move(resp));
-  };
-
-  // Create a copy of the whole response and cut away the data_sources section.
-  protos::gen::TracingServiceState svc_state_copy = svc_state;
-  auto data_sources = std::move(*svc_state_copy.mutable_data_sources());
-  chunked_reply = svc_state_copy.SerializeAsArray();
-
-  // Now re-add them fitting within the IPC message limits (- some margin for
-  // the outer IPC frame).
-  constexpr size_t kMaxMsgSize = ipc::kIPCBufferSize - 128;
-  for (const auto& data_source : data_sources) {
-    protos::gen::TracingServiceState tmp;
-    tmp.mutable_data_sources()->emplace_back(std::move(data_source));
-    std::vector<uint8_t> chunk = tmp.SerializeAsArray();
-    if (chunked_reply.size() + chunk.size() < kMaxMsgSize) {
-      chunked_reply.insert(chunked_reply.end(), chunk.begin(), chunk.end());
-    } else {
-      send_chunked_reply(/*has_more=*/true);
-      chunked_reply = std::move(chunk);
-    }
-  }
-
-  PERFETTO_DCHECK(!chunked_reply.empty());
-  send_chunked_reply(/*has_more=*/false);
-  PERFETTO_CHECK(sent_eof);
-}
-
-// Called by the service in response to a service_endpoint->Flush() request.
-void ConsumerIPCService::OnFlushCallback(
-    bool success,
-    PendingFlushResponses::iterator pending_response_it) {
-  DeferredFlushResponse response(std::move(*pending_response_it));
-  pending_flush_responses_.erase(pending_response_it);
-  if (success) {
-    response.Resolve(ipc::AsyncResult<protos::gen::FlushResponse>::Create());
-  } else {
-    response.Reject();
-  }
-}
-
-void ConsumerIPCService::QueryCapabilities(
-    const protos::gen::QueryCapabilitiesRequest&,
-    DeferredQueryCapabilitiesResponse resp) {
-  RemoteConsumer* remote_consumer = GetConsumerForCurrentRequest();
-  auto it = pending_query_capabilities_responses_.insert(
-      pending_query_capabilities_responses_.end(), std::move(resp));
-  auto weak_this = weak_ptr_factory_.GetWeakPtr();
-  auto callback = [weak_this, it](const TracingServiceCapabilities& caps) {
-    if (weak_this)
-      weak_this->OnQueryCapabilitiesCallback(caps, std::move(it));
-  };
-  remote_consumer->service_endpoint->QueryCapabilities(callback);
-}
-
-// Called by the service in response to service_endpoint->QueryCapabilities().
-void ConsumerIPCService::OnQueryCapabilitiesCallback(
-    const TracingServiceCapabilities& caps,
-    PendingQueryCapabilitiesResponses::iterator pending_response_it) {
-  DeferredQueryCapabilitiesResponse response(std::move(*pending_response_it));
-  pending_query_capabilities_responses_.erase(pending_response_it);
-  auto resp =
-      ipc::AsyncResult<protos::gen::QueryCapabilitiesResponse>::Create();
-  *resp->mutable_capabilities() = caps;
-  response.Resolve(std::move(resp));
-}
-
-void ConsumerIPCService::SaveTraceForBugreport(
-    const protos::gen::SaveTraceForBugreportRequest&,
-    DeferredSaveTraceForBugreportResponse resp) {
-  RemoteConsumer* remote_consumer = GetConsumerForCurrentRequest();
-  auto it = pending_bugreport_responses_.insert(
-      pending_bugreport_responses_.end(), std::move(resp));
-  auto weak_this = weak_ptr_factory_.GetWeakPtr();
-  auto callback = [weak_this, it](bool success, const std::string& msg) {
-    if (weak_this)
-      weak_this->OnSaveTraceForBugreportCallback(success, msg, std::move(it));
-  };
-  remote_consumer->service_endpoint->SaveTraceForBugreport(callback);
-}
-
-// Called by the service in response to
-// service_endpoint->SaveTraceForBugreport().
-void ConsumerIPCService::OnSaveTraceForBugreportCallback(
-    bool success,
-    const std::string& msg,
-    PendingSaveTraceForBugreportResponses::iterator pending_response_it) {
-  DeferredSaveTraceForBugreportResponse response(
-      std::move(*pending_response_it));
-  pending_bugreport_responses_.erase(pending_response_it);
-  auto resp =
-      ipc::AsyncResult<protos::gen::SaveTraceForBugreportResponse>::Create();
-  resp->set_success(success);
-  resp->set_msg(msg);
-  response.Resolve(std::move(resp));
-}
-
-////////////////////////////////////////////////////////////////////////////////
-// RemoteConsumer methods
-////////////////////////////////////////////////////////////////////////////////
-
-ConsumerIPCService::RemoteConsumer::RemoteConsumer() = default;
-ConsumerIPCService::RemoteConsumer::~RemoteConsumer() = default;
-
-// Invoked by the |core_service_| business logic after the ConnectConsumer()
-// call. There is nothing to do here, we really expected the ConnectConsumer()
-// to just work in the local case.
-void ConsumerIPCService::RemoteConsumer::OnConnect() {}
-
-// Invoked by the |core_service_| business logic after we destroy the
-// |service_endpoint| (in the RemoteConsumer dtor).
-void ConsumerIPCService::RemoteConsumer::OnDisconnect() {}
-
-void ConsumerIPCService::RemoteConsumer::OnTracingDisabled(
-    const std::string& error) {
-  if (enable_tracing_response.IsBound()) {
-    auto result =
-        ipc::AsyncResult<protos::gen::EnableTracingResponse>::Create();
-    result->set_disabled(true);
-    if (!error.empty())
-      result->set_error(error);
-    enable_tracing_response.Resolve(std::move(result));
-  }
-}
-
-void ConsumerIPCService::RemoteConsumer::OnTraceData(
-    std::vector<TracePacket> trace_packets,
-    bool has_more) {
-  if (!read_buffers_response.IsBound())
-    return;
-
-  auto result = ipc::AsyncResult<protos::gen::ReadBuffersResponse>::Create();
-
-  // A TracePacket might be too big to fit into a single IPC message (max
-  // kIPCBufferSize). However a TracePacket is made of slices and each slice
-  // is way smaller than kIPCBufferSize (a slice size is effectively bounded by
-  // the max chunk size of the SharedMemoryABI). When sending a TracePacket,
-  // if its slices don't fit within one IPC, chunk them over several contiguous
-  // IPCs using the |last_slice_for_packet| for glueing on the other side.
-  static_assert(ipc::kIPCBufferSize >= SharedMemoryABI::kMaxPageSize * 2,
-                "kIPCBufferSize too small given the max possible slice size");
-
-  auto send_ipc_reply = [this, &result](bool more) {
-    result.set_has_more(more);
-    read_buffers_response.Resolve(std::move(result));
-    result = ipc::AsyncResult<protos::gen::ReadBuffersResponse>::Create();
-  };
-
-  size_t approx_reply_size = 0;
-  for (const TracePacket& trace_packet : trace_packets) {
-    size_t num_slices_left_for_packet = trace_packet.slices().size();
-    for (const Slice& slice : trace_packet.slices()) {
-      // Check if this slice would cause the IPC to overflow its max size and,
-      // if that is the case, split the IPCs. The "16" and "64" below are
-      // over-estimations of, respectively:
-      // 16: the preamble that prefixes each slice (there are 2 x size fields
-      //     in the proto + the |last_slice_for_packet| bool).
-      // 64: the overhead of the IPC InvokeMethodReply + wire_protocol's frame.
-      // If these estimations are wrong, BufferedFrameDeserializer::Serialize()
-      // will hit a DCHECK anyways.
-      const size_t approx_slice_size = slice.size + 16;
-      if (approx_reply_size + approx_slice_size > ipc::kIPCBufferSize - 64) {
-        // If we hit this CHECK we got a single slice that is > kIPCBufferSize.
-        PERFETTO_CHECK(result->slices_size() > 0);
-        send_ipc_reply(/*has_more=*/true);
-        approx_reply_size = 0;
-      }
-      approx_reply_size += approx_slice_size;
-
-      auto* res_slice = result->add_slices();
-      res_slice->set_last_slice_for_packet(--num_slices_left_for_packet == 0);
-      res_slice->set_data(slice.start, slice.size);
-    }
-  }
-  send_ipc_reply(has_more);
-}
-
-void ConsumerIPCService::RemoteConsumer::OnDetach(bool success) {
-  if (!success) {
-    std::move(detach_response).Reject();
-    return;
-  }
-  auto resp = ipc::AsyncResult<protos::gen::DetachResponse>::Create();
-  std::move(detach_response).Resolve(std::move(resp));
-}
-
-void ConsumerIPCService::RemoteConsumer::OnAttach(
-    bool success,
-    const TraceConfig& trace_config) {
-  if (!success) {
-    std::move(attach_response).Reject();
-    return;
-  }
-  auto response = ipc::AsyncResult<protos::gen::AttachResponse>::Create();
-  *response->mutable_trace_config() = trace_config;
-  std::move(attach_response).Resolve(std::move(response));
-}
-
-void ConsumerIPCService::RemoteConsumer::OnTraceStats(bool success,
-                                                      const TraceStats& stats) {
-  if (!success) {
-    std::move(get_trace_stats_response).Reject();
-    return;
-  }
-  auto response =
-      ipc::AsyncResult<protos::gen::GetTraceStatsResponse>::Create();
-  *response->mutable_trace_stats() = stats;
-  std::move(get_trace_stats_response).Resolve(std::move(response));
-}
-
-void ConsumerIPCService::RemoteConsumer::OnObservableEvents(
-    const ObservableEvents& events) {
-  if (!observe_events_response.IsBound())
-    return;
-
-  auto result = ipc::AsyncResult<protos::gen::ObserveEventsResponse>::Create();
-  result.set_has_more(true);
-  *result->mutable_events() = events;
-  observe_events_response.Resolve(std::move(result));
-}
-
-void ConsumerIPCService::RemoteConsumer::CloseObserveEventsResponseStream() {
-  if (!observe_events_response.IsBound())
-    return;
-
-  auto result = ipc::AsyncResult<protos::gen::ObserveEventsResponse>::Create();
-  result.set_has_more(false);
-  observe_events_response.Resolve(std::move(result));
-}
-
-}  // namespace perfetto
-// gen_amalgamated begin source: src/tracing/ipc/service/producer_ipc_service.cc
-// gen_amalgamated begin header: src/tracing/ipc/service/producer_ipc_service.h
-/*
- * Copyright (C) 2017 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef SRC_TRACING_IPC_SERVICE_PRODUCER_IPC_SERVICE_H_
-#define SRC_TRACING_IPC_SERVICE_PRODUCER_IPC_SERVICE_H_
-
-#include <list>
-#include <map>
-#include <memory>
-#include <string>
-
-// gen_amalgamated expanded: #include "perfetto/ext/base/weak_ptr.h"
-// gen_amalgamated expanded: #include "perfetto/ext/ipc/basic_types.h"
-// gen_amalgamated expanded: #include "perfetto/ext/tracing/core/producer.h"
-// gen_amalgamated expanded: #include "perfetto/ext/tracing/core/tracing_service.h"
-
-// gen_amalgamated expanded: #include "protos/perfetto/ipc/producer_port.ipc.h"
-
-namespace perfetto {
-
-namespace ipc {
-class Host;
-}  // namespace ipc
-
-// Implements the Producer port of the IPC service. This class proxies requests
-// and responses between the core service logic (|svc_|) and remote Producer(s)
-// on the IPC socket, through the methods overriddden from ProducerPort.
-class ProducerIPCService : public protos::gen::ProducerPort {
- public:
-  explicit ProducerIPCService(TracingService* core_service);
-  ~ProducerIPCService() override;
-
-  // ProducerPort implementation (from .proto IPC definition).
-  void InitializeConnection(const protos::gen::InitializeConnectionRequest&,
-                            DeferredInitializeConnectionResponse) override;
-  void RegisterDataSource(const protos::gen::RegisterDataSourceRequest&,
-                          DeferredRegisterDataSourceResponse) override;
-  void UnregisterDataSource(const protos::gen::UnregisterDataSourceRequest&,
-                            DeferredUnregisterDataSourceResponse) override;
-  void RegisterTraceWriter(const protos::gen::RegisterTraceWriterRequest&,
-                           DeferredRegisterTraceWriterResponse) override;
-  void UnregisterTraceWriter(const protos::gen::UnregisterTraceWriterRequest&,
-                             DeferredUnregisterTraceWriterResponse) override;
-  void CommitData(const protos::gen::CommitDataRequest&,
-                  DeferredCommitDataResponse) override;
-  void NotifyDataSourceStarted(
-      const protos::gen::NotifyDataSourceStartedRequest&,
-      DeferredNotifyDataSourceStartedResponse) override;
-  void NotifyDataSourceStopped(
-      const protos::gen::NotifyDataSourceStoppedRequest&,
-      DeferredNotifyDataSourceStoppedResponse) override;
-  void ActivateTriggers(const protos::gen::ActivateTriggersRequest&,
-                        DeferredActivateTriggersResponse) override;
-
-  void GetAsyncCommand(const protos::gen::GetAsyncCommandRequest&,
-                       DeferredGetAsyncCommandResponse) override;
-  void Sync(const protos::gen::SyncRequest&, DeferredSyncResponse) override;
-  void OnClientDisconnected() override;
-
- private:
-  // Acts like a Producer with the core Service business logic (which doesn't
-  // know anything about the remote transport), but all it does is proxying
-  // methods to the remote Producer on the other side of the IPC channel.
-  class RemoteProducer : public Producer {
-   public:
-    RemoteProducer();
-    ~RemoteProducer() override;
-
-    // These methods are called by the |core_service_| business logic. There is
-    // no connection here, these methods are posted straight away.
-    void OnConnect() override;
-    void OnDisconnect() override;
-    void SetupDataSource(DataSourceInstanceID,
-                         const DataSourceConfig&) override;
-    void StartDataSource(DataSourceInstanceID,
-                         const DataSourceConfig&) override;
-    void StopDataSource(DataSourceInstanceID) override;
-    void OnTracingSetup() override;
-    void Flush(FlushRequestID,
-               const DataSourceInstanceID* data_source_ids,
-               size_t num_data_sources) override;
-
-    void ClearIncrementalState(const DataSourceInstanceID* data_source_ids,
-                               size_t num_data_sources) override;
-
-    void SendSetupTracing();
-
-    // The interface obtained from the core service business logic through
-    // Service::ConnectProducer(this). This allows to invoke methods for a
-    // specific Producer on the Service business logic.
-    std::unique_ptr<TracingService::ProducerEndpoint> service_endpoint;
-
-    // The back-channel (based on a never ending stream request) that allows us
-    // to send asynchronous commands to the remote Producer (e.g. start/stop a
-    // data source).
-    DeferredGetAsyncCommandResponse async_producer_commands;
-
-    // Set if the service calls OnTracingSetup() before the
-    // |async_producer_commands| was bound by the service. In this case, we
-    // forward the SetupTracing command when it is bound later.
-    bool send_setup_tracing_on_async_commands_bound = false;
-  };
-
-  ProducerIPCService(const ProducerIPCService&) = delete;
-  ProducerIPCService& operator=(const ProducerIPCService&) = delete;
-
-  // Returns the ProducerEndpoint in the core business logic that corresponds to
-  // the current IPC request.
-  RemoteProducer* GetProducerForCurrentRequest();
-
-  TracingService* const core_service_;
-
-  // Maps IPC clients to ProducerEndpoint instances registered on the
-  // |core_service_| business logic.
-  std::map<ipc::ClientID, std::unique_ptr<RemoteProducer>> producers_;
-
-  // List because pointers need to be stable.
-  std::list<DeferredSyncResponse> pending_syncs_;
-
-  base::WeakPtrFactory<ProducerIPCService> weak_ptr_factory_;  // Keep last.
-};
-
-}  // namespace perfetto
-
-#endif  // SRC_TRACING_IPC_SERVICE_PRODUCER_IPC_SERVICE_H_
-/*
- * Copyright (C) 2017 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-// gen_amalgamated expanded: #include "src/tracing/ipc/service/producer_ipc_service.h"
-
-#include <inttypes.h>
-
-// gen_amalgamated expanded: #include "perfetto/base/logging.h"
-// gen_amalgamated expanded: #include "perfetto/base/task_runner.h"
-// gen_amalgamated expanded: #include "perfetto/ext/ipc/host.h"
-// gen_amalgamated expanded: #include "perfetto/ext/ipc/service.h"
-// gen_amalgamated expanded: #include "perfetto/ext/tracing/core/commit_data_request.h"
-// gen_amalgamated expanded: #include "perfetto/ext/tracing/core/tracing_service.h"
-// gen_amalgamated expanded: #include "perfetto/tracing/core/data_source_config.h"
-// gen_amalgamated expanded: #include "perfetto/tracing/core/data_source_descriptor.h"
-// gen_amalgamated expanded: #include "src/tracing/ipc/posix_shared_memory.h"
-
-// The remote Producer(s) are not trusted. All the methods from the ProducerPort
-// IPC layer (e.g. RegisterDataSource()) must assume that the remote Producer is
-// compromised.
-
-namespace perfetto {
-
-ProducerIPCService::ProducerIPCService(TracingService* core_service)
-    : core_service_(core_service), weak_ptr_factory_(this) {}
-
-ProducerIPCService::~ProducerIPCService() = default;
-
-ProducerIPCService::RemoteProducer*
-ProducerIPCService::GetProducerForCurrentRequest() {
-  const ipc::ClientID ipc_client_id = ipc::Service::client_info().client_id();
-  PERFETTO_CHECK(ipc_client_id);
-  auto it = producers_.find(ipc_client_id);
-  if (it == producers_.end())
-    return nullptr;
-  return it->second.get();
-}
-
-// Called by the remote Producer through the IPC channel soon after connecting.
-void ProducerIPCService::InitializeConnection(
-    const protos::gen::InitializeConnectionRequest& req,
-    DeferredInitializeConnectionResponse response) {
-  const auto& client_info = ipc::Service::client_info();
-  const ipc::ClientID ipc_client_id = client_info.client_id();
-  PERFETTO_CHECK(ipc_client_id);
-
-  if (producers_.count(ipc_client_id) > 0) {
-    PERFETTO_DLOG(
-        "The remote Producer is trying to re-initialize the connection");
-    return response.Reject();
-  }
-
-  // Create a new entry.
-  std::unique_ptr<RemoteProducer> producer(new RemoteProducer());
-
-  TracingService::ProducerSMBScrapingMode smb_scraping_mode =
-      TracingService::ProducerSMBScrapingMode::kDefault;
-  switch (req.smb_scraping_mode()) {
-    case protos::gen::InitializeConnectionRequest::SMB_SCRAPING_UNSPECIFIED:
-      break;
-    case protos::gen::InitializeConnectionRequest::SMB_SCRAPING_DISABLED:
-      smb_scraping_mode = TracingService::ProducerSMBScrapingMode::kDisabled;
-      break;
-    case protos::gen::InitializeConnectionRequest::SMB_SCRAPING_ENABLED:
-      smb_scraping_mode = TracingService::ProducerSMBScrapingMode::kEnabled;
-      break;
-  }
-
-#if PERFETTO_DCHECK_IS_ON()
-  if (req.build_flags() ==
-      protos::gen::InitializeConnectionRequest::BUILD_FLAGS_DCHECKS_OFF) {
-    PERFETTO_LOG(
-        "The producer is built with NDEBUG but the service binary was built "
-        "with the DEBUG flag. This will likely cause crashes.");
-    // The other way round (DEBUG producer with NDEBUG service) is expected to
-    // work.
-  }
-#endif
-
-  // If the producer provided an SMB, tell the service to attempt to adopt it.
-  std::unique_ptr<SharedMemory> shmem;
-  if (req.producer_provided_shmem()) {
-    base::ScopedFile shmem_fd = ipc::Service::TakeReceivedFD();
-    if (shmem_fd) {
-      shmem = PosixSharedMemory::AttachToFd(
-          std::move(shmem_fd), /*require_seals_if_supported=*/true);
-      if (!shmem) {
-        PERFETTO_ELOG(
-            "Couldn't map producer-provided SMB, falling back to "
-            "service-provided SMB");
-      }
-    } else {
-      PERFETTO_DLOG(
-          "InitializeConnectionRequest's producer_provided_shmem flag is set "
-          "but the producer didn't provide an FD");
-    }
-  }
-
-  // ConnectProducer will call OnConnect() on the next task.
-  producer->service_endpoint = core_service_->ConnectProducer(
-      producer.get(), client_info.uid(), req.producer_name(),
-      req.shared_memory_size_hint_bytes(),
-      /*in_process=*/false, smb_scraping_mode,
-      req.shared_memory_page_size_hint_bytes(), std::move(shmem),
-      req.sdk_version());
-
-  // Could happen if the service has too many producers connected.
-  if (!producer->service_endpoint) {
-    response.Reject();
-    return;
-  }
-
-  bool using_producer_shmem =
-      producer->service_endpoint->IsShmemProvidedByProducer();
-
-  producers_.emplace(ipc_client_id, std::move(producer));
-  // Because of the std::move() |producer| is invalid after this point.
-
-  auto async_res =
-      ipc::AsyncResult<protos::gen::InitializeConnectionResponse>::Create();
-  async_res->set_using_shmem_provided_by_producer(using_producer_shmem);
-  async_res->set_direct_smb_patching_supported(true);
-  response.Resolve(std::move(async_res));
-}
-
-// Called by the remote Producer through the IPC channel.
-void ProducerIPCService::RegisterDataSource(
-    const protos::gen::RegisterDataSourceRequest& req,
-    DeferredRegisterDataSourceResponse response) {
-  RemoteProducer* producer = GetProducerForCurrentRequest();
-  if (!producer) {
-    PERFETTO_DLOG(
-        "Producer invoked RegisterDataSource() before InitializeConnection()");
-    if (response.IsBound())
-      response.Reject();
-    return;
-  }
-
-  const DataSourceDescriptor& dsd = req.data_source_descriptor();
-  GetProducerForCurrentRequest()->service_endpoint->RegisterDataSource(dsd);
-
-  // RegisterDataSource doesn't expect any meaningful response.
-  if (response.IsBound()) {
-    response.Resolve(
-        ipc::AsyncResult<protos::gen::RegisterDataSourceResponse>::Create());
-  }
-}
-
-// Called by the IPC layer.
-void ProducerIPCService::OnClientDisconnected() {
-  ipc::ClientID client_id = ipc::Service::client_info().client_id();
-  PERFETTO_DLOG("Client %" PRIu64 " disconnected", client_id);
-  producers_.erase(client_id);
-}
-
-// TODO(fmayer): test what happens if we receive the following tasks, in order:
-// RegisterDataSource, UnregisterDataSource, OnDataSourceRegistered.
-// which essentially means that the client posted back to back a
-// ReqisterDataSource and UnregisterDataSource speculating on the next id.
-// Called by the remote Service through the IPC channel.
-void ProducerIPCService::UnregisterDataSource(
-    const protos::gen::UnregisterDataSourceRequest& req,
-    DeferredUnregisterDataSourceResponse response) {
-  RemoteProducer* producer = GetProducerForCurrentRequest();
-  if (!producer) {
-    PERFETTO_DLOG(
-        "Producer invoked UnregisterDataSource() before "
-        "InitializeConnection()");
-    if (response.IsBound())
-      response.Reject();
-    return;
-  }
-  producer->service_endpoint->UnregisterDataSource(req.data_source_name());
-
-  // UnregisterDataSource doesn't expect any meaningful response.
-  if (response.IsBound()) {
-    response.Resolve(
-        ipc::AsyncResult<protos::gen::UnregisterDataSourceResponse>::Create());
-  }
-}
-
-void ProducerIPCService::RegisterTraceWriter(
-    const protos::gen::RegisterTraceWriterRequest& req,
-    DeferredRegisterTraceWriterResponse response) {
-  RemoteProducer* producer = GetProducerForCurrentRequest();
-  if (!producer) {
-    PERFETTO_DLOG(
-        "Producer invoked RegisterTraceWriter() before "
-        "InitializeConnection()");
-    if (response.IsBound())
-      response.Reject();
-    return;
-  }
-  producer->service_endpoint->RegisterTraceWriter(req.trace_writer_id(),
-                                                  req.target_buffer());
-
-  // RegisterTraceWriter doesn't expect any meaningful response.
-  if (response.IsBound()) {
-    response.Resolve(
-        ipc::AsyncResult<protos::gen::RegisterTraceWriterResponse>::Create());
-  }
-}
-
-void ProducerIPCService::UnregisterTraceWriter(
-    const protos::gen::UnregisterTraceWriterRequest& req,
-    DeferredUnregisterTraceWriterResponse response) {
-  RemoteProducer* producer = GetProducerForCurrentRequest();
-  if (!producer) {
-    PERFETTO_DLOG(
-        "Producer invoked UnregisterTraceWriter() before "
-        "InitializeConnection()");
-    if (response.IsBound())
-      response.Reject();
-    return;
-  }
-  producer->service_endpoint->UnregisterTraceWriter(req.trace_writer_id());
-
-  // UnregisterTraceWriter doesn't expect any meaningful response.
-  if (response.IsBound()) {
-    response.Resolve(
-        ipc::AsyncResult<protos::gen::UnregisterTraceWriterResponse>::Create());
-  }
-}
-
-void ProducerIPCService::CommitData(const protos::gen::CommitDataRequest& req,
-                                    DeferredCommitDataResponse resp) {
-  RemoteProducer* producer = GetProducerForCurrentRequest();
-  if (!producer) {
-    PERFETTO_DLOG(
-        "Producer invoked CommitData() before InitializeConnection()");
-    if (resp.IsBound())
-      resp.Reject();
-    return;
-  }
-
-  // We don't want to send a response if the client didn't attach a callback to
-  // the original request. Doing so would generate unnecessary wakeups and
-  // context switches.
-  std::function<void()> callback;
-  if (resp.IsBound()) {
-    // Capturing |resp| by reference here speculates on the fact that
-    // CommitData() in tracing_service_impl.cc invokes the passed callback
-    // inline, without posting it. If that assumption changes this code needs to
-    // wrap the response in a shared_ptr (C+11 lambdas don't support move) and
-    // use a weak ptr in the caller.
-    callback = [&resp] {
-      resp.Resolve(ipc::AsyncResult<protos::gen::CommitDataResponse>::Create());
-    };
-  }
-  producer->service_endpoint->CommitData(req, callback);
-}
-
-void ProducerIPCService::NotifyDataSourceStarted(
-    const protos::gen::NotifyDataSourceStartedRequest& request,
-    DeferredNotifyDataSourceStartedResponse response) {
-  RemoteProducer* producer = GetProducerForCurrentRequest();
-  if (!producer) {
-    PERFETTO_DLOG(
-        "Producer invoked NotifyDataSourceStarted() before "
-        "InitializeConnection()");
-    if (response.IsBound())
-      response.Reject();
-    return;
-  }
-  producer->service_endpoint->NotifyDataSourceStarted(request.data_source_id());
-
-  // NotifyDataSourceStopped shouldn't expect any meaningful response, avoid
-  // a useless IPC in that case.
-  if (response.IsBound()) {
-    response.Resolve(ipc::AsyncResult<
-                     protos::gen::NotifyDataSourceStartedResponse>::Create());
-  }
-}
-
-void ProducerIPCService::NotifyDataSourceStopped(
-    const protos::gen::NotifyDataSourceStoppedRequest& request,
-    DeferredNotifyDataSourceStoppedResponse response) {
-  RemoteProducer* producer = GetProducerForCurrentRequest();
-  if (!producer) {
-    PERFETTO_DLOG(
-        "Producer invoked NotifyDataSourceStopped() before "
-        "InitializeConnection()");
-    if (response.IsBound())
-      response.Reject();
-    return;
-  }
-  producer->service_endpoint->NotifyDataSourceStopped(request.data_source_id());
-
-  // NotifyDataSourceStopped shouldn't expect any meaningful response, avoid
-  // a useless IPC in that case.
-  if (response.IsBound()) {
-    response.Resolve(ipc::AsyncResult<
-                     protos::gen::NotifyDataSourceStoppedResponse>::Create());
-  }
-}
-
-void ProducerIPCService::ActivateTriggers(
-    const protos::gen::ActivateTriggersRequest& proto_req,
-    DeferredActivateTriggersResponse resp) {
-  RemoteProducer* producer = GetProducerForCurrentRequest();
-  if (!producer) {
-    PERFETTO_DLOG(
-        "Producer invoked ActivateTriggers() before InitializeConnection()");
-    if (resp.IsBound())
-      resp.Reject();
-    return;
-  }
-  std::vector<std::string> triggers;
-  for (const auto& name : proto_req.trigger_names()) {
-    triggers.push_back(name);
-  }
-  producer->service_endpoint->ActivateTriggers(triggers);
-  // ActivateTriggers shouldn't expect any meaningful response, avoid
-  // a useless IPC in that case.
-  if (resp.IsBound()) {
-    resp.Resolve(
-        ipc::AsyncResult<protos::gen::ActivateTriggersResponse>::Create());
-  }
-}
-
-void ProducerIPCService::GetAsyncCommand(
-    const protos::gen::GetAsyncCommandRequest&,
-    DeferredGetAsyncCommandResponse response) {
-  RemoteProducer* producer = GetProducerForCurrentRequest();
-  if (!producer) {
-    PERFETTO_DLOG(
-        "Producer invoked GetAsyncCommand() before "
-        "InitializeConnection()");
-    return response.Reject();
-  }
-  // Keep the back channel open, without ever resolving the ipc::Deferred fully,
-  // to send async commands to the RemoteProducer (e.g., starting/stopping a
-  // data source).
-  producer->async_producer_commands = std::move(response);
-
-  // Service may already have issued the OnTracingSetup() event, in which case
-  // we should forward it to the producer now.
-  if (producer->send_setup_tracing_on_async_commands_bound)
-    producer->SendSetupTracing();
-}
-
-void ProducerIPCService::Sync(const protos::gen::SyncRequest&,
-                              DeferredSyncResponse resp) {
-  RemoteProducer* producer = GetProducerForCurrentRequest();
-  if (!producer) {
-    PERFETTO_DLOG("Producer invoked Sync() before InitializeConnection()");
-    return resp.Reject();
-  }
-  auto weak_this = weak_ptr_factory_.GetWeakPtr();
-  auto resp_it = pending_syncs_.insert(pending_syncs_.end(), std::move(resp));
-  auto callback = [weak_this, resp_it]() {
-    if (!weak_this)
-      return;
-    auto pending_resp = std::move(*resp_it);
-    weak_this->pending_syncs_.erase(resp_it);
-    pending_resp.Resolve(ipc::AsyncResult<protos::gen::SyncResponse>::Create());
-  };
-  producer->service_endpoint->Sync(callback);
-}
-
-////////////////////////////////////////////////////////////////////////////////
-// RemoteProducer methods
-////////////////////////////////////////////////////////////////////////////////
-
-ProducerIPCService::RemoteProducer::RemoteProducer() = default;
-ProducerIPCService::RemoteProducer::~RemoteProducer() = default;
-
-// Invoked by the |core_service_| business logic after the ConnectProducer()
-// call. There is nothing to do here, we really expected the ConnectProducer()
-// to just work in the local case.
-void ProducerIPCService::RemoteProducer::OnConnect() {}
-
-// Invoked by the |core_service_| business logic after we destroy the
-// |service_endpoint| (in the RemoteProducer dtor).
-void ProducerIPCService::RemoteProducer::OnDisconnect() {}
-
-// Invoked by the |core_service_| business logic when it wants to create a new
-// data source.
-void ProducerIPCService::RemoteProducer::SetupDataSource(
-    DataSourceInstanceID dsid,
-    const DataSourceConfig& cfg) {
-  if (!async_producer_commands.IsBound()) {
-    PERFETTO_DLOG(
-        "The Service tried to create a new data source but the remote Producer "
-        "has not yet initialized the connection");
-    return;
-  }
-  auto cmd = ipc::AsyncResult<protos::gen::GetAsyncCommandResponse>::Create();
-  cmd.set_has_more(true);
-  cmd->mutable_setup_data_source()->set_new_instance_id(dsid);
-  *cmd->mutable_setup_data_source()->mutable_config() = cfg;
-  async_producer_commands.Resolve(std::move(cmd));
-}
-
-// Invoked by the |core_service_| business logic when it wants to start a new
-// data source.
-void ProducerIPCService::RemoteProducer::StartDataSource(
-    DataSourceInstanceID dsid,
-    const DataSourceConfig& cfg) {
-  if (!async_producer_commands.IsBound()) {
-    PERFETTO_DLOG(
-        "The Service tried to start a new data source but the remote Producer "
-        "has not yet initialized the connection");
-    return;
-  }
-  auto cmd = ipc::AsyncResult<protos::gen::GetAsyncCommandResponse>::Create();
-  cmd.set_has_more(true);
-  cmd->mutable_start_data_source()->set_new_instance_id(dsid);
-  *cmd->mutable_start_data_source()->mutable_config() = cfg;
-  async_producer_commands.Resolve(std::move(cmd));
-}
-
-void ProducerIPCService::RemoteProducer::StopDataSource(
-    DataSourceInstanceID dsid) {
-  if (!async_producer_commands.IsBound()) {
-    PERFETTO_DLOG(
-        "The Service tried to stop a data source but the remote Producer "
-        "has not yet initialized the connection");
-    return;
-  }
-  auto cmd = ipc::AsyncResult<protos::gen::GetAsyncCommandResponse>::Create();
-  cmd.set_has_more(true);
-  cmd->mutable_stop_data_source()->set_instance_id(dsid);
-  async_producer_commands.Resolve(std::move(cmd));
-}
-
-void ProducerIPCService::RemoteProducer::OnTracingSetup() {
-  if (!async_producer_commands.IsBound()) {
-    // Service may call this before the producer issued GetAsyncCommand.
-    send_setup_tracing_on_async_commands_bound = true;
-    return;
-  }
-  SendSetupTracing();
-}
-
-void ProducerIPCService::RemoteProducer::SendSetupTracing() {
-  PERFETTO_CHECK(async_producer_commands.IsBound());
-  PERFETTO_CHECK(service_endpoint->shared_memory());
-  auto cmd = ipc::AsyncResult<protos::gen::GetAsyncCommandResponse>::Create();
-  cmd.set_has_more(true);
-  auto setup_tracing = cmd->mutable_setup_tracing();
-  if (!service_endpoint->IsShmemProvidedByProducer()) {
-    // Nominal case (% Chrome): service provides SMB.
-    setup_tracing->set_shared_buffer_page_size_kb(
-        static_cast<uint32_t>(service_endpoint->shared_buffer_page_size_kb()));
-    const int shm_fd =
-        static_cast<PosixSharedMemory*>(service_endpoint->shared_memory())
-            ->fd();
-    cmd.set_fd(shm_fd);
-  }
-  async_producer_commands.Resolve(std::move(cmd));
-}
-
-void ProducerIPCService::RemoteProducer::Flush(
-    FlushRequestID flush_request_id,
-    const DataSourceInstanceID* data_source_ids,
-    size_t num_data_sources) {
-  if (!async_producer_commands.IsBound()) {
-    PERFETTO_DLOG(
-        "The Service tried to request a flush but the remote Producer has not "
-        "yet initialized the connection");
-    return;
-  }
-  auto cmd = ipc::AsyncResult<protos::gen::GetAsyncCommandResponse>::Create();
-  cmd.set_has_more(true);
-  for (size_t i = 0; i < num_data_sources; i++)
-    cmd->mutable_flush()->add_data_source_ids(data_source_ids[i]);
-  cmd->mutable_flush()->set_request_id(flush_request_id);
-  async_producer_commands.Resolve(std::move(cmd));
-}
-
-void ProducerIPCService::RemoteProducer::ClearIncrementalState(
-    const DataSourceInstanceID* data_source_ids,
-    size_t num_data_sources) {
-  if (!async_producer_commands.IsBound()) {
-    PERFETTO_DLOG(
-        "The Service tried to request an incremental state invalidation, but "
-        "the remote Producer has not yet initialized the connection");
-    return;
-  }
-  auto cmd = ipc::AsyncResult<protos::gen::GetAsyncCommandResponse>::Create();
-  cmd.set_has_more(true);
-  for (size_t i = 0; i < num_data_sources; i++)
-    cmd->mutable_clear_incremental_state()->add_data_source_ids(
-        data_source_ids[i]);
-  async_producer_commands.Resolve(std::move(cmd));
-}
-
-}  // namespace perfetto
-// gen_amalgamated begin source: src/tracing/ipc/service/service_ipc_host_impl.cc
-// gen_amalgamated begin header: src/tracing/ipc/service/service_ipc_host_impl.h
-// gen_amalgamated begin header: include/perfetto/ext/tracing/ipc/service_ipc_host.h
-/*
- * Copyright (C) 2017 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef INCLUDE_PERFETTO_EXT_TRACING_IPC_SERVICE_IPC_HOST_H_
-#define INCLUDE_PERFETTO_EXT_TRACING_IPC_SERVICE_IPC_HOST_H_
-
-#include <memory>
-
-// gen_amalgamated expanded: #include "perfetto/base/export.h"
-// gen_amalgamated expanded: #include "perfetto/ext/base/scoped_file.h"
-// gen_amalgamated expanded: #include "perfetto/ext/base/unix_socket.h"
-// gen_amalgamated expanded: #include "perfetto/ext/tracing/core/basic_types.h"
-
-namespace perfetto {
-namespace base {
-class TaskRunner;
-}  // namespace base.
-
-class TracingService;
-
-// Creates an instance of the service (business logic + UNIX socket transport).
-// Exposed to:
-//   The code in the tracing client that will host the service e.g., traced.
-// Implemented in:
-//   src/tracing/ipc/service/service_ipc_host_impl.cc
-class PERFETTO_EXPORT ServiceIPCHost {
- public:
-  static std::unique_ptr<ServiceIPCHost> CreateInstance(base::TaskRunner*);
-  virtual ~ServiceIPCHost();
-
-  // Start listening on the Producer & Consumer ports. Returns false in case of
-  // failure (e.g., something else is listening on |socket_name|).
-  virtual bool Start(const char* producer_socket_name,
-                     const char* consumer_socket_name) = 0;
-
-  // Like the above, but takes two file descriptors to already bound sockets.
-  // This is used when building as part of the Android tree, where init opens
-  // and binds the socket beore exec()-ing us.
-  virtual bool Start(base::ScopedSocketHandle producer_socket_fd,
-                     base::ScopedSocketHandle consumer_socket_fd) = 0;
-
-  virtual TracingService* service() const = 0;
-
- protected:
-  ServiceIPCHost();
-
- private:
-  ServiceIPCHost(const ServiceIPCHost&) = delete;
-  ServiceIPCHost& operator=(const ServiceIPCHost&) = delete;
-};
-
-}  // namespace perfetto
-
-#endif  // INCLUDE_PERFETTO_EXT_TRACING_IPC_SERVICE_IPC_HOST_H_
-/*
- * Copyright (C) 2017 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef SRC_TRACING_IPC_SERVICE_SERVICE_IPC_HOST_IMPL_H_
-#define SRC_TRACING_IPC_SERVICE_SERVICE_IPC_HOST_IMPL_H_
-
-#include <memory>
-
-// gen_amalgamated expanded: #include "perfetto/ext/tracing/ipc/service_ipc_host.h"
-
-namespace perfetto {
-
-namespace ipc {
-class Host;
-}
-
-// The implementation of the IPC host for the tracing service. This class does
-// very few things: it mostly initializes the IPC transport. The actual
-// implementation of the IPC <> Service business logic glue lives in
-// producer_ipc_service.cc and consumer_ipc_service.cc.
-class ServiceIPCHostImpl : public ServiceIPCHost {
- public:
-  ServiceIPCHostImpl(base::TaskRunner*);
-  ~ServiceIPCHostImpl() override;
-
-  // ServiceIPCHost implementation.
-  bool Start(const char* producer_socket_name,
-             const char* consumer_socket_name) override;
-  bool Start(base::ScopedSocketHandle producer_socket_fd,
-             base::ScopedSocketHandle consumer_socket_fd) override;
-
-  TracingService* service() const override;
-
- private:
-  bool DoStart();
-  void Shutdown();
-
-  base::TaskRunner* const task_runner_;
-  std::unique_ptr<TracingService> svc_;  // The service business logic.
-
-  // The IPC host that listens on the Producer socket. It owns the
-  // PosixServiceProducerPort instance which deals with all producers' IPC(s).
-  std::unique_ptr<ipc::Host> producer_ipc_port_;
-
-  // As above, but for the Consumer port.
-  std::unique_ptr<ipc::Host> consumer_ipc_port_;
-};
-
-}  // namespace perfetto
-
-#endif  // SRC_TRACING_IPC_SERVICE_SERVICE_IPC_HOST_IMPL_H_
-/*
- * Copyright (C) 2017 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-// gen_amalgamated expanded: #include "src/tracing/ipc/service/service_ipc_host_impl.h"
-
-// gen_amalgamated expanded: #include "perfetto/base/logging.h"
-// gen_amalgamated expanded: #include "perfetto/base/task_runner.h"
-// gen_amalgamated expanded: #include "perfetto/ext/ipc/host.h"
-// gen_amalgamated expanded: #include "perfetto/ext/tracing/core/tracing_service.h"
-// gen_amalgamated expanded: #include "src/tracing/ipc/posix_shared_memory.h"
-// gen_amalgamated expanded: #include "src/tracing/ipc/service/consumer_ipc_service.h"
-// gen_amalgamated expanded: #include "src/tracing/ipc/service/producer_ipc_service.h"
-
-namespace perfetto {
-
-// TODO(fmayer): implement per-uid connection limit (b/69093705).
-
-// Implements the publicly exposed factory method declared in
-// include/tracing/posix_ipc/posix_service_host.h.
-std::unique_ptr<ServiceIPCHost> ServiceIPCHost::CreateInstance(
-    base::TaskRunner* task_runner) {
-  return std::unique_ptr<ServiceIPCHost>(new ServiceIPCHostImpl(task_runner));
-}
-
-ServiceIPCHostImpl::ServiceIPCHostImpl(base::TaskRunner* task_runner)
-    : task_runner_(task_runner) {}
-
-ServiceIPCHostImpl::~ServiceIPCHostImpl() {}
-
-bool ServiceIPCHostImpl::Start(const char* producer_socket_name,
-                               const char* consumer_socket_name) {
-  PERFETTO_CHECK(!svc_);  // Check if already started.
-
-  // Initialize the IPC transport.
-  producer_ipc_port_ =
-      ipc::Host::CreateInstance(producer_socket_name, task_runner_);
-  consumer_ipc_port_ =
-      ipc::Host::CreateInstance(consumer_socket_name, task_runner_);
-  return DoStart();
-}
-
-bool ServiceIPCHostImpl::Start(base::ScopedSocketHandle producer_socket_fd,
-                               base::ScopedSocketHandle consumer_socket_fd) {
-  PERFETTO_CHECK(!svc_);  // Check if already started.
-
-  // Initialize the IPC transport.
-  producer_ipc_port_ =
-      ipc::Host::CreateInstance(std::move(producer_socket_fd), task_runner_);
-  consumer_ipc_port_ =
-      ipc::Host::CreateInstance(std::move(consumer_socket_fd), task_runner_);
-  return DoStart();
-}
-
-bool ServiceIPCHostImpl::DoStart() {
-  // Create and initialize the platform-independent tracing business logic.
-  std::unique_ptr<SharedMemory::Factory> shm_factory(
-      new PosixSharedMemory::Factory());
-  svc_ = TracingService::CreateInstance(std::move(shm_factory), task_runner_);
-
-  if (!producer_ipc_port_ || !consumer_ipc_port_) {
-    Shutdown();
-    return false;
-  }
-
-  // TODO(fmayer): add a test that destroyes the ServiceIPCHostImpl soon after
-  // Start() and checks that no spurious callbacks are issued.
-  bool producer_service_exposed = producer_ipc_port_->ExposeService(
-      std::unique_ptr<ipc::Service>(new ProducerIPCService(svc_.get())));
-  PERFETTO_CHECK(producer_service_exposed);
-
-  bool consumer_service_exposed = consumer_ipc_port_->ExposeService(
-      std::unique_ptr<ipc::Service>(new ConsumerIPCService(svc_.get())));
-  PERFETTO_CHECK(consumer_service_exposed);
-
-  return true;
-}
-
-TracingService* ServiceIPCHostImpl::service() const {
-  return svc_.get();
-}
-
-void ServiceIPCHostImpl::Shutdown() {
-  // TODO(primiano): add a test that causes the Shutdown() and checks that no
-  // spurious callbacks are issued.
-  producer_ipc_port_.reset();
-  consumer_ipc_port_.reset();
-  svc_.reset();
-}
-
-// Definitions for the base class ctor/dtor.
-ServiceIPCHost::ServiceIPCHost() = default;
-ServiceIPCHost::~ServiceIPCHost() = default;
-
-}  // namespace perfetto
-// gen_amalgamated begin source: src/tracing/internal/system_tracing_backend.cc
-/*
- * Copyright (C) 2019 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-// gen_amalgamated expanded: #include "perfetto/tracing/internal/system_tracing_backend.h"
-
-// gen_amalgamated expanded: #include "perfetto/base/logging.h"
-// gen_amalgamated expanded: #include "perfetto/base/task_runner.h"
-// gen_amalgamated expanded: #include "perfetto/ext/tracing/core/tracing_service.h"
-// gen_amalgamated expanded: #include "perfetto/ext/tracing/ipc/consumer_ipc_client.h"
-// gen_amalgamated expanded: #include "perfetto/ext/tracing/ipc/default_socket.h"
-// gen_amalgamated expanded: #include "perfetto/ext/tracing/ipc/producer_ipc_client.h"
-
-namespace perfetto {
-namespace internal {
-
-// static
-TracingBackend* SystemTracingBackend::GetInstance() {
-  static auto* instance = new SystemTracingBackend();
-  return instance;
-}
-
-SystemTracingBackend::SystemTracingBackend() {}
-
-std::unique_ptr<ProducerEndpoint> SystemTracingBackend::ConnectProducer(
-    const ConnectProducerArgs& args) {
-  PERFETTO_DCHECK(args.task_runner->RunsTasksOnCurrentThread());
-
-  auto endpoint = ProducerIPCClient::Connect(
-      GetProducerSocket(), args.producer, args.producer_name, args.task_runner,
-      TracingService::ProducerSMBScrapingMode::kEnabled,
-      args.shmem_size_hint_bytes, args.shmem_page_size_hint_bytes, nullptr,
-      nullptr, ProducerIPCClient::ConnectionFlags::kRetryIfUnreachable);
-  PERFETTO_CHECK(endpoint);
-  return endpoint;
-}
-
-std::unique_ptr<ConsumerEndpoint> SystemTracingBackend::ConnectConsumer(
-    const ConnectConsumerArgs& args) {
-  auto endpoint = ConsumerIPCClient::Connect(GetConsumerSocket(), args.consumer,
-                                             args.task_runner);
-  PERFETTO_CHECK(endpoint);
-  return endpoint;
-}
-
-}  // namespace internal
-}  // namespace perfetto
-// gen_amalgamated begin source: src/tracing/platform_posix.cc
-/*
- * Copyright (C) 2019 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-// gen_amalgamated expanded: #include "perfetto/base/build_config.h"
-
-#if PERFETTO_BUILDFLAG(PERFETTO_OS_LINUX) ||   \
-    PERFETTO_BUILDFLAG(PERFETTO_OS_ANDROID) || \
-    PERFETTO_BUILDFLAG(PERFETTO_OS_APPLE)
-
-// gen_amalgamated expanded: #include "perfetto/ext/base/file_utils.h"
-// gen_amalgamated expanded: #include "perfetto/ext/base/thread_task_runner.h"
-// gen_amalgamated expanded: #include "perfetto/tracing/internal/tracing_tls.h"
-// gen_amalgamated expanded: #include "perfetto/tracing/platform.h"
-// gen_amalgamated expanded: #include "perfetto/tracing/trace_writer_base.h"
-
-#include <pthread.h>
-#include <stdlib.h>
-
-namespace perfetto {
-
-namespace {
-
-class PlatformPosix : public Platform {
- public:
-  PlatformPosix();
-  ~PlatformPosix() override;
-
-  ThreadLocalObject* GetOrCreateThreadLocalObject() override;
-  std::unique_ptr<base::TaskRunner> CreateTaskRunner(
-      const CreateTaskRunnerArgs&) override;
-  std::string GetCurrentProcessName() override;
-
- private:
-  pthread_key_t tls_key_{};
-};
-
-using ThreadLocalObject = Platform::ThreadLocalObject;
-
-PlatformPosix::PlatformPosix() {
-  auto tls_dtor = [](void* obj) {
-    delete static_cast<ThreadLocalObject*>(obj);
-  };
-  PERFETTO_CHECK(pthread_key_create(&tls_key_, tls_dtor) == 0);
-}
-
-PlatformPosix::~PlatformPosix() {
-  pthread_key_delete(tls_key_);
-}
-
-ThreadLocalObject* PlatformPosix::GetOrCreateThreadLocalObject() {
-  // In chromium this should be implemented using base::ThreadLocalStorage.
-  auto tls = static_cast<ThreadLocalObject*>(pthread_getspecific(tls_key_));
-  if (!tls) {
-    tls = ThreadLocalObject::CreateInstance().release();
-    pthread_setspecific(tls_key_, tls);
-  }
-  return tls;
-}
-
-std::unique_ptr<base::TaskRunner> PlatformPosix::CreateTaskRunner(
-    const CreateTaskRunnerArgs&) {
-  return std::unique_ptr<base::TaskRunner>(
-      new base::ThreadTaskRunner(base::ThreadTaskRunner::CreateAndStart()));
-}
-
-std::string PlatformPosix::GetCurrentProcessName() {
-#if PERFETTO_BUILDFLAG(PERFETTO_OS_LINUX) || \
-    PERFETTO_BUILDFLAG(PERFETTO_OS_ANDROID)
-  std::string cmdline;
-  base::ReadFile("/proc/self/cmdline", &cmdline);
-  return cmdline.substr(0, cmdline.find('\0'));
-#elif PERFETTO_BUILDFLAG(PERFETTO_OS_APPLE)
-  return std::string(getprogname());
-#else
-  return "unknown_producer";
-#endif
-}
-
-}  // namespace
-
-// static
-Platform* Platform::GetDefaultPlatform() {
-  static PlatformPosix* instance = new PlatformPosix();
-  return instance;
-}
-
-}  // namespace perfetto
-#endif  // OS_LINUX || OS_ANDROID || OS_APPLE
-
diff --git a/guest/profiler/perfetto.h b/guest/profiler/perfetto.h
deleted file mode 100644
index d66b3ef3..00000000
--- a/guest/profiler/perfetto.h
+++ /dev/null
@@ -1,132001 +0,0 @@
-// Copyright (C) 2019 The Android Open Source Project
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-//      http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
-//
-// This file is automatically generated by gen_amalgamated. Do not edit.
-
-// gen_amalgamated begin header: include/perfetto/tracing.h
-// gen_amalgamated begin header: include/perfetto/tracing/buffer_exhausted_policy.h
-/*
- * Copyright (C) 2019 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef INCLUDE_PERFETTO_TRACING_BUFFER_EXHAUSTED_POLICY_H_
-#define INCLUDE_PERFETTO_TRACING_BUFFER_EXHAUSTED_POLICY_H_
-
-namespace perfetto {
-
-// Determines how SharedMemoryArbiterImpl::GetNewChunk() behaves when no free
-// chunks are available.
-enum class BufferExhaustedPolicy {
-  // SharedMemoryArbiterImpl::GetNewChunk() will stall if no free SMB chunk is
-  // available and wait for the tracing service to free one. Note that this
-  // requires that messages the arbiter sends to the tracing service (from any
-  // TraceWriter thread) will be received by it, even if all TraceWriter threads
-  // are stalled.
-  kStall,
-
-  // SharedMemoryArbiterImpl::GetNewChunk() will return an invalid chunk if no
-  // free SMB chunk is available. In this case, the TraceWriter will fall back
-  // to a garbage chunk and drop written data until acquiring a future chunk
-  // succeeds again.
-  kDrop,
-
-  // TODO(eseckler): Switch to kDrop by default and change the Android code to
-  // explicitly request kStall instead.
-  kDefault = kStall
-};
-
-}  // namespace perfetto
-
-#endif  // INCLUDE_PERFETTO_TRACING_BUFFER_EXHAUSTED_POLICY_H_
-// gen_amalgamated begin header: include/perfetto/tracing/console_interceptor.h
-// gen_amalgamated begin header: include/perfetto/base/compiler.h
-// gen_amalgamated begin header: include/perfetto/base/build_config.h
-// gen_amalgamated begin header: gen/build_config/perfetto_build_flags.h
-/*
- * Copyright (C) 2019 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-// Generated by write_buildflag_header.py
-
-// fix_include_guards: off
-#ifndef GEN_BUILD_CONFIG_PERFETTO_BUILD_FLAGS_H_
-#define GEN_BUILD_CONFIG_PERFETTO_BUILD_FLAGS_H_
-
-// clang-format off
-#define PERFETTO_BUILDFLAG_DEFINE_PERFETTO_ANDROID_BUILD() (0)
-#define PERFETTO_BUILDFLAG_DEFINE_PERFETTO_CHROMIUM_BUILD() (0)
-#define PERFETTO_BUILDFLAG_DEFINE_PERFETTO_STANDALONE_BUILD() (0)
-#define PERFETTO_BUILDFLAG_DEFINE_PERFETTO_START_DAEMONS() (1)
-#define PERFETTO_BUILDFLAG_DEFINE_PERFETTO_IPC() (1)
-#define PERFETTO_BUILDFLAG_DEFINE_PERFETTO_WATCHDOG() (0)
-#define PERFETTO_BUILDFLAG_DEFINE_PERFETTO_COMPONENT_BUILD() (0)
-#define PERFETTO_BUILDFLAG_DEFINE_PERFETTO_FORCE_DLOG_ON() (0)
-#define PERFETTO_BUILDFLAG_DEFINE_PERFETTO_FORCE_DLOG_OFF() (0)
-#define PERFETTO_BUILDFLAG_DEFINE_PERFETTO_VERBOSE_LOGS() (1)
-#define PERFETTO_BUILDFLAG_DEFINE_PERFETTO_VERSION_GEN() (1)
-#define PERFETTO_BUILDFLAG_DEFINE_PERFETTO_TP_PERCENTILE() (0)
-#define PERFETTO_BUILDFLAG_DEFINE_PERFETTO_TP_LINENOISE() (0)
-#define PERFETTO_BUILDFLAG_DEFINE_PERFETTO_TP_HTTPD() (0)
-#define PERFETTO_BUILDFLAG_DEFINE_PERFETTO_TP_JSON() (1)
-#define PERFETTO_BUILDFLAG_DEFINE_PERFETTO_LOCAL_SYMBOLIZER() (0)
-#define PERFETTO_BUILDFLAG_DEFINE_PERFETTO_ZLIB() (1)
-
-// clang-format on
-#endif  // GEN_BUILD_CONFIG_PERFETTO_BUILD_FLAGS_H_
-/*
- * Copyright (C) 2017 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef INCLUDE_PERFETTO_BASE_BUILD_CONFIG_H_
-#define INCLUDE_PERFETTO_BASE_BUILD_CONFIG_H_
-
-// Allows to define build flags that give a compiler error if the header that
-// defined the flag is not included, instead of silently ignoring the #if block.
-#define PERFETTO_BUILDFLAG_CAT_INDIRECT(a, b) a##b
-#define PERFETTO_BUILDFLAG_CAT(a, b) PERFETTO_BUILDFLAG_CAT_INDIRECT(a, b)
-#define PERFETTO_BUILDFLAG(flag) \
-  (PERFETTO_BUILDFLAG_CAT(PERFETTO_BUILDFLAG_DEFINE_, flag)())
-
-#if defined(__ANDROID__)
-#define PERFETTO_BUILDFLAG_DEFINE_PERFETTO_OS_ANDROID() 1
-#define PERFETTO_BUILDFLAG_DEFINE_PERFETTO_OS_LINUX() 0
-#define PERFETTO_BUILDFLAG_DEFINE_PERFETTO_OS_WIN() 0
-#define PERFETTO_BUILDFLAG_DEFINE_PERFETTO_OS_APPLE() 0
-#define PERFETTO_BUILDFLAG_DEFINE_PERFETTO_OS_MAC() 0
-#define PERFETTO_BUILDFLAG_DEFINE_PERFETTO_OS_IOS() 0
-#define PERFETTO_BUILDFLAG_DEFINE_PERFETTO_OS_WASM() 0
-#define PERFETTO_BUILDFLAG_DEFINE_PERFETTO_OS_FUCHSIA() 0
-#define PERFETTO_BUILDFLAG_DEFINE_PERFETTO_OS_NACL() 0
-#elif defined(__APPLE__)
-#define PERFETTO_BUILDFLAG_DEFINE_PERFETTO_OS_ANDROID() 0
-#define PERFETTO_BUILDFLAG_DEFINE_PERFETTO_OS_APPLE() 1
-#define PERFETTO_BUILDFLAG_DEFINE_PERFETTO_OS_LINUX() 0
-#define PERFETTO_BUILDFLAG_DEFINE_PERFETTO_OS_WIN() 0
-#define PERFETTO_BUILDFLAG_DEFINE_PERFETTO_OS_WASM() 0
-#define PERFETTO_BUILDFLAG_DEFINE_PERFETTO_OS_FUCHSIA() 0
-#define PERFETTO_BUILDFLAG_DEFINE_PERFETTO_OS_NACL() 0
-// Include TARGET_OS_IPHONE when on __APPLE__ systems.
-#include <TargetConditionals.h>
-#if defined(TARGET_OS_IPHONE) && TARGET_OS_IPHONE
-#define PERFETTO_BUILDFLAG_DEFINE_PERFETTO_OS_MAC() 0
-#define PERFETTO_BUILDFLAG_DEFINE_PERFETTO_OS_IOS() 1
-#else
-#define PERFETTO_BUILDFLAG_DEFINE_PERFETTO_OS_MAC() 1
-#define PERFETTO_BUILDFLAG_DEFINE_PERFETTO_OS_IOS() 0
-#endif
-#elif defined(__linux__)
-#define PERFETTO_BUILDFLAG_DEFINE_PERFETTO_OS_ANDROID() 0
-#define PERFETTO_BUILDFLAG_DEFINE_PERFETTO_OS_LINUX() 1
-#define PERFETTO_BUILDFLAG_DEFINE_PERFETTO_OS_WIN() 0
-#define PERFETTO_BUILDFLAG_DEFINE_PERFETTO_OS_APPLE() 0
-#define PERFETTO_BUILDFLAG_DEFINE_PERFETTO_OS_MAC() 0
-#define PERFETTO_BUILDFLAG_DEFINE_PERFETTO_OS_IOS() 0
-#define PERFETTO_BUILDFLAG_DEFINE_PERFETTO_OS_WASM() 0
-#define PERFETTO_BUILDFLAG_DEFINE_PERFETTO_OS_FUCHSIA() 0
-#define PERFETTO_BUILDFLAG_DEFINE_PERFETTO_OS_NACL() 0
-#elif defined(_WIN32)
-#define PERFETTO_BUILDFLAG_DEFINE_PERFETTO_OS_ANDROID() 0
-#define PERFETTO_BUILDFLAG_DEFINE_PERFETTO_OS_LINUX() 0
-#define PERFETTO_BUILDFLAG_DEFINE_PERFETTO_OS_WIN() 1
-#define PERFETTO_BUILDFLAG_DEFINE_PERFETTO_OS_APPLE() 0
-#define PERFETTO_BUILDFLAG_DEFINE_PERFETTO_OS_MAC() 0
-#define PERFETTO_BUILDFLAG_DEFINE_PERFETTO_OS_IOS() 0
-#define PERFETTO_BUILDFLAG_DEFINE_PERFETTO_OS_WASM() 0
-#define PERFETTO_BUILDFLAG_DEFINE_PERFETTO_OS_FUCHSIA() 0
-#define PERFETTO_BUILDFLAG_DEFINE_PERFETTO_OS_NACL() 0
-#elif defined(__EMSCRIPTEN__)
-#define PERFETTO_BUILDFLAG_DEFINE_PERFETTO_OS_ANDROID() 0
-#define PERFETTO_BUILDFLAG_DEFINE_PERFETTO_OS_LINUX() 0
-#define PERFETTO_BUILDFLAG_DEFINE_PERFETTO_OS_WIN() 0
-#define PERFETTO_BUILDFLAG_DEFINE_PERFETTO_OS_APPLE() 0
-#define PERFETTO_BUILDFLAG_DEFINE_PERFETTO_OS_MAC() 0
-#define PERFETTO_BUILDFLAG_DEFINE_PERFETTO_OS_IOS() 0
-#define PERFETTO_BUILDFLAG_DEFINE_PERFETTO_OS_WASM() 1
-#define PERFETTO_BUILDFLAG_DEFINE_PERFETTO_OS_FUCHSIA() 0
-#define PERFETTO_BUILDFLAG_DEFINE_PERFETTO_OS_NACL() 0
-#elif defined(__Fuchsia__)
-#define PERFETTO_BUILDFLAG_DEFINE_PERFETTO_OS_ANDROID() 0
-#define PERFETTO_BUILDFLAG_DEFINE_PERFETTO_OS_APPLE() 0
-#define PERFETTO_BUILDFLAG_DEFINE_PERFETTO_OS_MAC() 0
-#define PERFETTO_BUILDFLAG_DEFINE_PERFETTO_OS_IOS() 0
-#define PERFETTO_BUILDFLAG_DEFINE_PERFETTO_OS_LINUX() 0
-#define PERFETTO_BUILDFLAG_DEFINE_PERFETTO_OS_WIN() 0
-#define PERFETTO_BUILDFLAG_DEFINE_PERFETTO_OS_WASM() 0
-#define PERFETTO_BUILDFLAG_DEFINE_PERFETTO_OS_FUCHSIA() 1
-#define PERFETTO_BUILDFLAG_DEFINE_PERFETTO_OS_NACL() 0
-#elif defined(__native_client__)
-#define PERFETTO_BUILDFLAG_DEFINE_PERFETTO_OS_ANDROID() 0
-#define PERFETTO_BUILDFLAG_DEFINE_PERFETTO_OS_LINUX() 0
-#define PERFETTO_BUILDFLAG_DEFINE_PERFETTO_OS_WIN() 0
-#define PERFETTO_BUILDFLAG_DEFINE_PERFETTO_OS_APPLE() 0
-#define PERFETTO_BUILDFLAG_DEFINE_PERFETTO_OS_MAC() 0
-#define PERFETTO_BUILDFLAG_DEFINE_PERFETTO_OS_IOS() 0
-#define PERFETTO_BUILDFLAG_DEFINE_PERFETTO_OS_WASM() 0
-#define PERFETTO_BUILDFLAG_DEFINE_PERFETTO_OS_FUCHSIA() 0
-#define PERFETTO_BUILDFLAG_DEFINE_PERFETTO_OS_NACL() 1
-#else
-#error OS not supported (see build_config.h)
-#endif
-
-#if defined(__clang__)
-#define PERFETTO_BUILDFLAG_DEFINE_PERFETTO_COMPILER_CLANG() 1
-#define PERFETTO_BUILDFLAG_DEFINE_PERFETTO_COMPILER_GCC() 0
-#define PERFETTO_BUILDFLAG_DEFINE_PERFETTO_COMPILER_MSVC() 0
-#elif defined(__GNUC__) // Careful: Clang also defines this!
-#define PERFETTO_BUILDFLAG_DEFINE_PERFETTO_COMPILER_CLANG() 0
-#define PERFETTO_BUILDFLAG_DEFINE_PERFETTO_COMPILER_GCC() 1
-#define PERFETTO_BUILDFLAG_DEFINE_PERFETTO_COMPILER_MSVC() 0
-#elif defined(_MSC_VER)
-#define PERFETTO_BUILDFLAG_DEFINE_PERFETTO_COMPILER_CLANG() 0
-#define PERFETTO_BUILDFLAG_DEFINE_PERFETTO_COMPILER_GCC() 0
-#define PERFETTO_BUILDFLAG_DEFINE_PERFETTO_COMPILER_MSVC() 1
-#else
-#define PERFETTO_BUILDFLAG_DEFINE_PERFETTO_COMPILER_CLANG() 0
-#define PERFETTO_BUILDFLAG_DEFINE_PERFETTO_COMPILER_GCC() 0
-#define PERFETTO_BUILDFLAG_DEFINE_PERFETTO_COMPILER_MSVC() 0
-#endif
-
-#if defined(PERFETTO_BUILD_WITH_ANDROID_USERDEBUG)
-#define PERFETTO_BUILDFLAG_DEFINE_PERFETTO_ANDROID_USERDEBUG_BUILD() 1
-#else
-#define PERFETTO_BUILDFLAG_DEFINE_PERFETTO_ANDROID_USERDEBUG_BUILD() 0
-#endif
-
-// perfetto_build_flags.h contains the tweakable build flags defined via GN.
-// - In GN builds (e.g., standalone, chromium, v8) this file is generated at
-//   build time via the gen_rule //gn/gen_buildflags.
-// - In Android in-tree builds, this file is generated by tools/gen_android_bp
-//   and checked in into include/perfetto/base/build_configs/android_tree/. The
-//   default cflags add this path to the default include path.
-// - Similarly, in bazel builds, this file is generated by tools/gen_bazel and
-//   checked in into include/perfetto/base/build_configs/bazel/.
-// - In amaglamated builds, this file is generated by tools/gen_amalgamated and
-//   added to the amalgamated headers.
-// gen_amalgamated expanded: #include "perfetto_build_flags.h"  // no-include-violation-check
-
-#endif  // INCLUDE_PERFETTO_BASE_BUILD_CONFIG_H_
-/*
- * Copyright (C) 2019 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef INCLUDE_PERFETTO_BASE_COMPILER_H_
-#define INCLUDE_PERFETTO_BASE_COMPILER_H_
-
-#include <stddef.h>
-#include <type_traits>
-
-// gen_amalgamated expanded: #include "perfetto/base/build_config.h"
-
-// __has_attribute is supported only by clang and recent versions of GCC.
-// Add a layer to wrap the __has_attribute macro.
-#if defined(__has_attribute)
-#define PERFETTO_HAS_ATTRIBUTE(x) __has_attribute(x)
-#else
-#define PERFETTO_HAS_ATTRIBUTE(x) 0
-#endif
-
-#if defined(__GNUC__) || defined(__clang__)
-#define PERFETTO_LIKELY(_x) __builtin_expect(!!(_x), 1)
-#define PERFETTO_UNLIKELY(_x) __builtin_expect(!!(_x), 0)
-#else
-#define PERFETTO_LIKELY(_x) (_x)
-#define PERFETTO_UNLIKELY(_x) (_x)
-#endif
-
-#if defined(__GNUC__) || defined(__clang__)
-#define PERFETTO_WARN_UNUSED_RESULT __attribute__((warn_unused_result))
-#else
-#define PERFETTO_WARN_UNUSED_RESULT
-#endif
-
-#if defined(__clang__)
-#define PERFETTO_ALWAYS_INLINE __attribute__((__always_inline__))
-#define PERFETTO_NO_INLINE __attribute__((__noinline__))
-#else
-// GCC is too pedantic and often fails with the error:
-// "always_inline function might not be inlinable"
-#define PERFETTO_ALWAYS_INLINE
-#define PERFETTO_NO_INLINE
-#endif
-
-#if defined(__GNUC__) || defined(__clang__)
-#define PERFETTO_NORETURN __attribute__((__noreturn__))
-#else
-#define PERFETTO_NORETURN __declspec(noreturn)
-#endif
-
-#if defined(__GNUC__) || defined(__clang__)
-#define PERFETTO_DEBUG_FUNCTION_IDENTIFIER() __PRETTY_FUNCTION__
-#elif defined(_MSC_VER)
-#define PERFETTO_DEBUG_FUNCTION_IDENTIFIER() __FUNCSIG__
-#else
-#define PERFETTO_DEBUG_FUNCTION_IDENTIFIER() \
-  static_assert(false, "Not implemented for this compiler")
-#endif
-
-#if defined(__GNUC__) || defined(__clang__)
-#define PERFETTO_PRINTF_FORMAT(x, y) \
-  __attribute__((__format__(__printf__, x, y)))
-#else
-#define PERFETTO_PRINTF_FORMAT(x, y)
-#endif
-
-#if PERFETTO_BUILDFLAG(PERFETTO_OS_IOS)
-// TODO(b/158814068): For iOS builds, thread_local is only supported since iOS
-// 8. We'd have to use pthread for thread local data instead here. For now, just
-// define it to nothing since we don't support running perfetto or the client
-// lib on iOS right now.
-#define PERFETTO_THREAD_LOCAL
-#else
-#define PERFETTO_THREAD_LOCAL thread_local
-#endif
-
-#if defined(__GNUC__) || defined(__clang__)
-#define PERFETTO_POPCOUNT(x) __builtin_popcountll(x)
-#else
-#include <intrin.h>
-#define PERFETTO_POPCOUNT(x) __popcnt64(x)
-#endif
-
-#if defined(__clang__)
-#if __has_feature(address_sanitizer) || defined(__SANITIZE_ADDRESS__)
-extern "C" void __asan_poison_memory_region(void const volatile*, size_t);
-extern "C" void __asan_unpoison_memory_region(void const volatile*, size_t);
-#define PERFETTO_ASAN_POISON(a, s) __asan_poison_memory_region((a), (s))
-#define PERFETTO_ASAN_UNPOISON(a, s) __asan_unpoison_memory_region((a), (s))
-#else
-#define PERFETTO_ASAN_POISON(addr, size)
-#define PERFETTO_ASAN_UNPOISON(addr, size)
-#endif  // __has_feature(address_sanitizer)
-#else
-#define PERFETTO_ASAN_POISON(addr, size)
-#define PERFETTO_ASAN_UNPOISON(addr, size)
-#endif  // __clang__
-
-#if defined(__GNUC__) || defined(__clang__)
-#define PERFETTO_IS_LITTLE_ENDIAN() __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__
-#else
-// Assume all MSVC targets are little endian.
-#define PERFETTO_IS_LITTLE_ENDIAN() 1
-#endif
-
-// This is used for exporting xxxMain() symbols (e.g., PerfettoCmdMain,
-// ProbesMain) from libperfetto.so when the GN arg monolithic_binaries = false.
-#if defined(__GNUC__) || defined(__clang__)
-#define PERFETTO_EXPORT_ENTRYPOINT __attribute__((visibility("default")))
-#else
-// TODO(primiano): on Windows this should be a pair of dllexport/dllimport. But
-// that requires a -DXXX_IMPLEMENTATION depending on whether we are on the
-// impl-site or call-site. Right now it's not worth the trouble as we
-// force-export the xxxMain() symbols only on Android, where we pack all the
-// code for N binaries into one .so to save binary size. On Windows we support
-// only monolithic binaries, as they are easier to deal with.
-#define PERFETTO_EXPORT_ENTRYPOINT
-#endif
-
-// Disables thread safety analysis for functions where the compiler can't
-// accurate figure out which locks are being held.
-#if defined(__clang__)
-#define PERFETTO_NO_THREAD_SAFETY_ANALYSIS \
-  __attribute__((no_thread_safety_analysis))
-#else
-#define PERFETTO_NO_THREAD_SAFETY_ANALYSIS
-#endif
-
-// Avoid calling the exit-time destructor on an object with static lifetime.
-#if PERFETTO_HAS_ATTRIBUTE(no_destroy)
-#define PERFETTO_HAS_NO_DESTROY() 1
-#define PERFETTO_NO_DESTROY __attribute__((no_destroy))
-#else
-#define PERFETTO_HAS_NO_DESTROY() 0
-#define PERFETTO_NO_DESTROY
-#endif
-
-namespace perfetto {
-namespace base {
-
-template <typename... T>
-inline void ignore_result(const T&...) {}
-
-}  // namespace base
-}  // namespace perfetto
-
-#endif  // INCLUDE_PERFETTO_BASE_COMPILER_H_
-// gen_amalgamated begin header: include/perfetto/base/logging.h
-// gen_amalgamated begin header: include/perfetto/base/export.h
-/*
- * Copyright (C) 2018 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef INCLUDE_PERFETTO_BASE_EXPORT_H_
-#define INCLUDE_PERFETTO_BASE_EXPORT_H_
-
-// gen_amalgamated expanded: #include "perfetto/base/build_config.h"
-
-#if PERFETTO_BUILDFLAG(PERFETTO_COMPONENT_BUILD)
-
-#if PERFETTO_BUILDFLAG(PERFETTO_OS_WIN)
-
-#if defined(PERFETTO_IMPLEMENTATION)
-#define PERFETTO_EXPORT __declspec(dllexport)
-#else
-#define PERFETTO_EXPORT __declspec(dllimport)
-#endif
-
-#else  // PERFETTO_BUILDFLAG(PERFETTO_OS_WIN)
-
-#if defined(PERFETTO_IMPLEMENTATION)
-#define PERFETTO_EXPORT __attribute__((visibility("default")))
-#else
-#define PERFETTO_EXPORT
-#endif
-
-#endif  // PERFETTO_BUILDFLAG(PERFETTO_OS_WIN)
-
-#else  // !PERFETTO_BUILDFLAG(PERFETTO_COMPONENT_BUILD)
-
-#define PERFETTO_EXPORT
-
-#endif  // PERFETTO_BUILDFLAG(PERFETTO_COMPONENT_BUILD)
-
-#endif  // INCLUDE_PERFETTO_BASE_EXPORT_H_
-/*
- * Copyright (C) 2017 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef INCLUDE_PERFETTO_BASE_LOGGING_H_
-#define INCLUDE_PERFETTO_BASE_LOGGING_H_
-
-#include <errno.h>
-#include <string.h>  // For strerror.
-
-// gen_amalgamated expanded: #include "perfetto/base/build_config.h"
-// gen_amalgamated expanded: #include "perfetto/base/compiler.h"
-// gen_amalgamated expanded: #include "perfetto/base/export.h"
-
-#if defined(__GNUC__) || defined(__clang__)
-// Ignore GCC warning about a missing argument for a variadic macro parameter.
-#pragma GCC system_header
-#endif
-
-// TODO(primiano): move this to base/build_config.h, turn into
-// PERFETTO_BUILDFLAG(DCHECK_IS_ON) and update call sites to use that instead.
-#if defined(NDEBUG) && !defined(DCHECK_ALWAYS_ON)
-#define PERFETTO_DCHECK_IS_ON() 0
-#else
-#define PERFETTO_DCHECK_IS_ON() 1
-#endif
-
-#if PERFETTO_BUILDFLAG(PERFETTO_FORCE_DLOG_ON)
-#define PERFETTO_DLOG_IS_ON() 1
-#elif PERFETTO_BUILDFLAG(PERFETTO_FORCE_DLOG_OFF)
-#define PERFETTO_DLOG_IS_ON() 0
-#else
-#define PERFETTO_DLOG_IS_ON() PERFETTO_DCHECK_IS_ON()
-#endif
-
-#if defined(PERFETTO_ANDROID_ASYNC_SAFE_LOG)
-#if !PERFETTO_BUILDFLAG(PERFETTO_OS_ANDROID) || \
-    !PERFETTO_BUILDFLAG(PERFETTO_ANDROID_BUILD)
-#error "Async-safe logging is limited to Android tree builds"
-#endif
-// For binaries which need a very lightweight logging implementation.
-// Note that this header is incompatible with android/log.h.
-#include <async_safe/log.h>
-#elif PERFETTO_BUILDFLAG(PERFETTO_OS_ANDROID)
-// Normal android logging.
-#include <android/log.h>
-#endif
-
-namespace perfetto {
-namespace base {
-
-// Constexpr functions to extract basename(__FILE__), e.g.: ../foo/f.c -> f.c .
-constexpr const char* StrEnd(const char* s) {
-  return *s ? StrEnd(s + 1) : s;
-}
-
-constexpr const char* BasenameRecursive(const char* s,
-                                        const char* begin,
-                                        const char* end) {
-  return (*s == '/' && s < end)
-             ? (s + 1)
-             : ((s > begin) ? BasenameRecursive(s - 1, begin, end) : s);
-}
-
-constexpr const char* Basename(const char* str) {
-  return BasenameRecursive(StrEnd(str), str, StrEnd(str));
-}
-
-enum LogLev { kLogDebug = 0, kLogInfo, kLogImportant, kLogError };
-
-struct LogMessageCallbackArgs {
-  LogLev level;
-  int line;
-  const char* filename;
-  const char* message;
-};
-
-using LogMessageCallback = void (*)(LogMessageCallbackArgs);
-
-// This is not thread safe and must be called before using tracing from other
-// threads.
-PERFETTO_EXPORT void SetLogMessageCallback(LogMessageCallback callback);
-
-PERFETTO_EXPORT void LogMessage(LogLev,
-                                const char* fname,
-                                int line,
-                                const char* fmt,
-                                ...) PERFETTO_PRINTF_FORMAT(4, 5);
-
-#if defined(PERFETTO_ANDROID_ASYNC_SAFE_LOG)
-#define PERFETTO_XLOG(level, fmt, ...)                                        \
-  do {                                                                        \
-    async_safe_format_log((ANDROID_LOG_DEBUG + level), "perfetto",            \
-                          "%s:%d " fmt, ::perfetto::base::Basename(__FILE__), \
-                          __LINE__, ##__VA_ARGS__);                           \
-  } while (0)
-#elif defined(PERFETTO_DISABLE_LOG)
-#define PERFETTO_XLOG(...) ::perfetto::base::ignore_result(__VA_ARGS__)
-#else
-#define PERFETTO_XLOG(level, fmt, ...)                                      \
-  ::perfetto::base::LogMessage(level, ::perfetto::base::Basename(__FILE__), \
-                               __LINE__, fmt, ##__VA_ARGS__)
-#endif
-
-#if defined(_MSC_VER)
-#define PERFETTO_IMMEDIATE_CRASH() \
-  do {                             \
-    __debugbreak();                \
-    __assume(0);                   \
-  } while (0)
-#else
-#define PERFETTO_IMMEDIATE_CRASH() \
-  do {                             \
-    __builtin_trap();              \
-    __builtin_unreachable();       \
-  } while (0)
-#endif
-
-#if PERFETTO_BUILDFLAG(PERFETTO_VERBOSE_LOGS)
-#define PERFETTO_LOG(fmt, ...) \
-  PERFETTO_XLOG(::perfetto::base::kLogInfo, fmt, ##__VA_ARGS__)
-#else  // PERFETTO_BUILDFLAG(PERFETTO_VERBOSE_LOGS)
-#define PERFETTO_LOG(...) ::perfetto::base::ignore_result(__VA_ARGS__)
-#endif  // PERFETTO_BUILDFLAG(PERFETTO_VERBOSE_LOGS)
-
-#define PERFETTO_ILOG(fmt, ...) \
-  PERFETTO_XLOG(::perfetto::base::kLogImportant, fmt, ##__VA_ARGS__)
-#define PERFETTO_ELOG(fmt, ...) \
-  PERFETTO_XLOG(::perfetto::base::kLogError, fmt, ##__VA_ARGS__)
-#define PERFETTO_FATAL(fmt, ...)       \
-  do {                                 \
-    PERFETTO_PLOG(fmt, ##__VA_ARGS__); \
-    PERFETTO_IMMEDIATE_CRASH();        \
-  } while (0)
-
-#if defined(__GNUC__) || defined(__clang__)
-#define PERFETTO_PLOG(x, ...) \
-  PERFETTO_ELOG(x " (errno: %d, %s)", ##__VA_ARGS__, errno, strerror(errno))
-#else
-// MSVC expands __VA_ARGS__ in a different order. Give up, not worth it.
-#define PERFETTO_PLOG PERFETTO_ELOG
-#endif
-
-#define PERFETTO_CHECK(x)                            \
-  do {                                               \
-    if (PERFETTO_UNLIKELY(!(x))) {                   \
-      PERFETTO_PLOG("%s", "PERFETTO_CHECK(" #x ")"); \
-      PERFETTO_IMMEDIATE_CRASH();                    \
-    }                                                \
-  } while (0)
-
-#if PERFETTO_DLOG_IS_ON()
-
-#define PERFETTO_DLOG(fmt, ...) \
-  PERFETTO_XLOG(::perfetto::base::kLogDebug, fmt, ##__VA_ARGS__)
-
-#if defined(__GNUC__) || defined(__clang__)
-#define PERFETTO_DPLOG(x, ...) \
-  PERFETTO_DLOG(x " (errno: %d, %s)", ##__VA_ARGS__, errno, strerror(errno))
-#else
-// MSVC expands __VA_ARGS__ in a different order. Give up, not worth it.
-#define PERFETTO_DPLOG PERFETTO_DLOG
-#endif
-
-#else  // PERFETTO_DLOG_IS_ON()
-
-#define PERFETTO_DLOG(...) ::perfetto::base::ignore_result(__VA_ARGS__)
-#define PERFETTO_DPLOG(...) ::perfetto::base::ignore_result(__VA_ARGS__)
-
-#endif  // PERFETTO_DLOG_IS_ON()
-
-#if PERFETTO_DCHECK_IS_ON()
-
-#define PERFETTO_DCHECK(x) PERFETTO_CHECK(x)
-#define PERFETTO_DFATAL(...) PERFETTO_FATAL(__VA_ARGS__)
-#define PERFETTO_DFATAL_OR_ELOG(...) PERFETTO_DFATAL(__VA_ARGS__)
-
-#else  // PERFETTO_DCHECK_IS_ON()
-
-#define PERFETTO_DCHECK(x) \
-  do {                     \
-  } while (false && (x))
-
-#define PERFETTO_DFATAL(...) ::perfetto::base::ignore_result(__VA_ARGS__)
-#define PERFETTO_DFATAL_OR_ELOG(...) PERFETTO_ELOG(__VA_ARGS__)
-
-#endif  // PERFETTO_DCHECK_IS_ON()
-
-}  // namespace base
-}  // namespace perfetto
-
-#endif  // INCLUDE_PERFETTO_BASE_LOGGING_H_
-// gen_amalgamated begin header: include/perfetto/tracing/interceptor.h
-// gen_amalgamated begin header: include/perfetto/protozero/field.h
-// gen_amalgamated begin header: include/perfetto/protozero/contiguous_memory_range.h
-/*
- * Copyright (C) 2017 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef INCLUDE_PERFETTO_PROTOZERO_CONTIGUOUS_MEMORY_RANGE_H_
-#define INCLUDE_PERFETTO_PROTOZERO_CONTIGUOUS_MEMORY_RANGE_H_
-
-#include <assert.h>
-#include <stddef.h>
-#include <stdint.h>
-
-namespace protozero {
-
-// Keep this struct trivially constructible (no ctors, no default initializers).
-struct ContiguousMemoryRange {
-  uint8_t* begin;
-  uint8_t* end;  // STL style: one byte past the end of the buffer.
-
-  inline bool is_valid() const { return begin != nullptr; }
-  inline void reset() { begin = nullptr; }
-  inline size_t size() const { return static_cast<size_t>(end - begin); }
-};
-
-}  // namespace protozero
-
-#endif  // INCLUDE_PERFETTO_PROTOZERO_CONTIGUOUS_MEMORY_RANGE_H_
-// gen_amalgamated begin header: include/perfetto/protozero/proto_utils.h
-/*
- * Copyright (C) 2017 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef INCLUDE_PERFETTO_PROTOZERO_PROTO_UTILS_H_
-#define INCLUDE_PERFETTO_PROTOZERO_PROTO_UTILS_H_
-
-#include <inttypes.h>
-#include <stddef.h>
-
-#include <type_traits>
-
-// gen_amalgamated expanded: #include "perfetto/base/logging.h"
-
-namespace protozero {
-namespace proto_utils {
-
-// See https://developers.google.com/protocol-buffers/docs/encoding wire types.
-// This is a type encoded into the proto that provides just enough info to
-// find the length of the following value.
-enum class ProtoWireType : uint32_t {
-  kVarInt = 0,
-  kFixed64 = 1,
-  kLengthDelimited = 2,
-  kFixed32 = 5,
-};
-
-// This is the type defined in the proto for each field. This information
-// is used to decide the translation strategy when writing the trace.
-enum class ProtoSchemaType {
-  kUnknown = 0,
-  kDouble,
-  kFloat,
-  kInt64,
-  kUint64,
-  kInt32,
-  kFixed64,
-  kFixed32,
-  kBool,
-  kString,
-  kGroup,  // Deprecated (proto2 only)
-  kMessage,
-  kBytes,
-  kUint32,
-  kEnum,
-  kSfixed32,
-  kSfixed64,
-  kSint32,
-  kSint64,
-};
-
-inline const char* ProtoSchemaToString(ProtoSchemaType v) {
-  switch (v) {
-    case ProtoSchemaType::kUnknown:
-      return "unknown";
-    case ProtoSchemaType::kDouble:
-      return "double";
-    case ProtoSchemaType::kFloat:
-      return "float";
-    case ProtoSchemaType::kInt64:
-      return "int64";
-    case ProtoSchemaType::kUint64:
-      return "uint64";
-    case ProtoSchemaType::kInt32:
-      return "int32";
-    case ProtoSchemaType::kFixed64:
-      return "fixed64";
-    case ProtoSchemaType::kFixed32:
-      return "fixed32";
-    case ProtoSchemaType::kBool:
-      return "bool";
-    case ProtoSchemaType::kString:
-      return "string";
-    case ProtoSchemaType::kGroup:
-      return "group";
-    case ProtoSchemaType::kMessage:
-      return "message";
-    case ProtoSchemaType::kBytes:
-      return "bytes";
-    case ProtoSchemaType::kUint32:
-      return "uint32";
-    case ProtoSchemaType::kEnum:
-      return "enum";
-    case ProtoSchemaType::kSfixed32:
-      return "sfixed32";
-    case ProtoSchemaType::kSfixed64:
-      return "sfixed64";
-    case ProtoSchemaType::kSint32:
-      return "sint32";
-    case ProtoSchemaType::kSint64:
-      return "sint64";
-  }
-  // For gcc:
-  PERFETTO_DCHECK(false);
-  return "";
-}
-
-// Maximum message size supported: 256 MiB (4 x 7-bit due to varint encoding).
-constexpr size_t kMessageLengthFieldSize = 4;
-constexpr size_t kMaxMessageLength = (1u << (kMessageLengthFieldSize * 7)) - 1;
-
-// Field tag is encoded as 32-bit varint (5 bytes at most).
-// Largest value of simple (not length-delimited) field is 64-bit varint
-// (10 bytes at most). 15 bytes buffer is enough to store a simple field.
-constexpr size_t kMaxTagEncodedSize = 5;
-constexpr size_t kMaxSimpleFieldEncodedSize = kMaxTagEncodedSize + 10;
-
-// Proto types: (int|uint|sint)(32|64), bool, enum.
-constexpr uint32_t MakeTagVarInt(uint32_t field_id) {
-  return (field_id << 3) | static_cast<uint32_t>(ProtoWireType::kVarInt);
-}
-
-// Proto types: fixed64, sfixed64, fixed32, sfixed32, double, float.
-template <typename T>
-constexpr uint32_t MakeTagFixed(uint32_t field_id) {
-  static_assert(sizeof(T) == 8 || sizeof(T) == 4, "Value must be 4 or 8 bytes");
-  return (field_id << 3) |
-         static_cast<uint32_t>((sizeof(T) == 8 ? ProtoWireType::kFixed64
-                                               : ProtoWireType::kFixed32));
-}
-
-// Proto types: string, bytes, embedded messages.
-constexpr uint32_t MakeTagLengthDelimited(uint32_t field_id) {
-  return (field_id << 3) |
-         static_cast<uint32_t>(ProtoWireType::kLengthDelimited);
-}
-
-// Proto types: sint64, sint32.
-template <typename T>
-inline typename std::make_unsigned<T>::type ZigZagEncode(T value) {
-  using UnsignedType = typename std::make_unsigned<T>::type;
-
-  // Right-shift of negative values is implementation specific.
-  // Assert the implementation does what we expect, which is that shifting any
-  // positive value by sizeof(T) * 8 - 1 gives an all 0 bitmap, and a negative
-  // value gives and all 1 bitmap.
-  constexpr uint64_t kUnsignedZero = 0u;
-  constexpr int64_t kNegativeOne = -1;
-  constexpr int64_t kPositiveOne = 1;
-  static_assert(static_cast<uint64_t>(kNegativeOne >> 63) == ~kUnsignedZero,
-                "implementation does not support assumed rightshift");
-  static_assert(static_cast<uint64_t>(kPositiveOne >> 63) == kUnsignedZero,
-                "implementation does not support assumed rightshift");
-
-  return (static_cast<UnsignedType>(value) << 1) ^
-         static_cast<UnsignedType>(value >> (sizeof(T) * 8 - 1));
-}
-
-// Proto types: sint64, sint32.
-template <typename T>
-inline typename std::make_signed<T>::type ZigZagDecode(T value) {
-  using UnsignedType = typename std::make_unsigned<T>::type;
-  using SignedType = typename std::make_signed<T>::type;
-  auto u_value = static_cast<UnsignedType>(value);
-  auto mask = static_cast<UnsignedType>(-static_cast<SignedType>(u_value & 1));
-  return static_cast<SignedType>((u_value >> 1) ^ mask);
-}
-
-template <typename T>
-inline uint8_t* WriteVarInt(T value, uint8_t* target) {
-  // If value is <= 0 we must first sign extend to int64_t (see [1]).
-  // Finally we always cast to an unsigned value to to avoid arithmetic
-  // (sign expanding) shifts in the while loop.
-  // [1]: "If you use int32 or int64 as the type for a negative number, the
-  // resulting varint is always ten bytes long".
-  // - developers.google.com/protocol-buffers/docs/encoding
-  // So for each input type we do the following casts:
-  // uintX_t -> uintX_t -> uintX_t
-  // int8_t  -> int64_t -> uint64_t
-  // int16_t -> int64_t -> uint64_t
-  // int32_t -> int64_t -> uint64_t
-  // int64_t -> int64_t -> uint64_t
-  using MaybeExtendedType =
-      typename std::conditional<std::is_unsigned<T>::value, T, int64_t>::type;
-  using UnsignedType = typename std::make_unsigned<MaybeExtendedType>::type;
-
-  MaybeExtendedType extended_value = static_cast<MaybeExtendedType>(value);
-  UnsignedType unsigned_value = static_cast<UnsignedType>(extended_value);
-
-  while (unsigned_value >= 0x80) {
-    *target++ = static_cast<uint8_t>(unsigned_value) | 0x80;
-    unsigned_value >>= 7;
-  }
-  *target = static_cast<uint8_t>(unsigned_value);
-  return target + 1;
-}
-
-// Writes a fixed-size redundant encoding of the given |value|. This is
-// used to backfill fixed-size reservations for the length field using a
-// non-canonical varint encoding (e.g. \x81\x80\x80\x00 instead of \x01).
-// See https://github.com/google/protobuf/issues/1530.
-// This is used mainly in two cases:
-// 1) At trace writing time, when starting a nested messages. The size of a
-//    nested message is not known until all its field have been written.
-//    |kMessageLengthFieldSize| bytes are reserved to encode the size field and
-//    backfilled at the end.
-// 2) When rewriting a message at trace filtering time, in protozero/filtering.
-//    At that point we know only the upper bound of the length (a filtered
-//    message is <= the original one) and we backfill after the message has been
-//    filtered.
-inline void WriteRedundantVarInt(uint32_t value,
-                                 uint8_t* buf,
-                                 size_t size = kMessageLengthFieldSize) {
-  for (size_t i = 0; i < size; ++i) {
-    const uint8_t msb = (i < size - 1) ? 0x80 : 0;
-    buf[i] = static_cast<uint8_t>(value) | msb;
-    value >>= 7;
-  }
-}
-
-template <uint32_t field_id>
-void StaticAssertSingleBytePreamble() {
-  static_assert(field_id < 16,
-                "Proto field id too big to fit in a single byte preamble");
-}
-
-// Parses a VarInt from the encoded buffer [start, end). |end| is STL-style and
-// points one byte past the end of buffer.
-// The parsed int value is stored in the output arg |value|. Returns a pointer
-// to the next unconsumed byte (so start < retval <= end) or |start| if the
-// VarInt could not be fully parsed because there was not enough space in the
-// buffer.
-inline const uint8_t* ParseVarInt(const uint8_t* start,
-                                  const uint8_t* end,
-                                  uint64_t* out_value) {
-  const uint8_t* pos = start;
-  uint64_t value = 0;
-  for (uint32_t shift = 0; pos < end && shift < 64u; shift += 7) {
-    // Cache *pos into |cur_byte| to prevent that the compiler dereferences the
-    // pointer twice (here and in the if() below) due to char* aliasing rules.
-    uint8_t cur_byte = *pos++;
-    value |= static_cast<uint64_t>(cur_byte & 0x7f) << shift;
-    if ((cur_byte & 0x80) == 0) {
-      // In valid cases we get here.
-      *out_value = value;
-      return pos;
-    }
-  }
-  *out_value = 0;
-  return start;
-}
-
-enum class RepetitionType {
-  kNotRepeated,
-  kRepeatedPacked,
-  kRepeatedNotPacked,
-};
-
-// Provide a common base struct for all templated FieldMetadata types to allow
-// simple checks if a given type is a FieldMetadata or not.
-struct FieldMetadataBase {
-  constexpr FieldMetadataBase() = default;
-};
-
-template <uint32_t field_id,
-          RepetitionType repetition_type,
-          ProtoSchemaType proto_schema_type,
-          typename CppFieldType,
-          typename MessageType>
-struct FieldMetadata : public FieldMetadataBase {
-  constexpr FieldMetadata() = default;
-
-  static constexpr int kFieldId = field_id;
-  // Whether this field is repeated, packed (repeated [packed-true]) or not
-  // (optional).
-  static constexpr RepetitionType kRepetitionType = repetition_type;
-  // Proto type of this field (e.g. int64, fixed32 or nested message).
-  static constexpr ProtoSchemaType kProtoFieldType = proto_schema_type;
-  // C++ type of this field (for nested messages - C++ protozero class).
-  using cpp_field_type = CppFieldType;
-  // Protozero message which this field belongs to.
-  using message_type = MessageType;
-};
-
-namespace internal {
-
-// Ideally we would create variables of FieldMetadata<...> type directly,
-// but before C++17's support for constexpr inline variables arrive, we have to
-// actually use pointers to inline functions instead to avoid having to define
-// symbols in *.pbzero.cc files.
-//
-// Note: protozero bindings will generate Message::kFieldName variable and which
-// can then be passed to TRACE_EVENT macro for inline writing of typed messages.
-// The fact that the former can be passed to the latter is a part of the stable
-// API, while the particular type is not and users should not rely on it.
-template <typename T>
-using FieldMetadataHelper = T (*)(void);
-
-}  // namespace internal
-}  // namespace proto_utils
-}  // namespace protozero
-
-#endif  // INCLUDE_PERFETTO_PROTOZERO_PROTO_UTILS_H_
-/*
- * Copyright (C) 2019 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef INCLUDE_PERFETTO_PROTOZERO_FIELD_H_
-#define INCLUDE_PERFETTO_PROTOZERO_FIELD_H_
-
-#include <stdint.h>
-
-#include <string>
-#include <vector>
-
-// gen_amalgamated expanded: #include "perfetto/base/logging.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/contiguous_memory_range.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/proto_utils.h"
-
-namespace protozero {
-
-struct ConstBytes {
-  std::string ToStdString() const {
-    return std::string(reinterpret_cast<const char*>(data), size);
-  }
-
-  const uint8_t* data;
-  size_t size;
-};
-
-struct ConstChars {
-  // Allow implicit conversion to perfetto's base::StringView without depending
-  // on perfetto/base or viceversa.
-  static constexpr bool kConvertibleToStringView = true;
-  std::string ToStdString() const { return std::string(data, size); }
-
-  const char* data;
-  size_t size;
-};
-
-// A protobuf field decoded by the protozero proto decoders. It exposes
-// convenience accessors with minimal debug checks.
-// This class is used both by the iterator-based ProtoDecoder and by the
-// one-shot TypedProtoDecoder.
-// If the field is not valid the accessors consistently return zero-integers or
-// null strings.
-class Field {
- public:
-  bool valid() const { return id_ != 0; }
-  uint16_t id() const { return id_; }
-  explicit operator bool() const { return valid(); }
-
-  proto_utils::ProtoWireType type() const {
-    auto res = static_cast<proto_utils::ProtoWireType>(type_);
-    PERFETTO_DCHECK(res == proto_utils::ProtoWireType::kVarInt ||
-                    res == proto_utils::ProtoWireType::kLengthDelimited ||
-                    res == proto_utils::ProtoWireType::kFixed32 ||
-                    res == proto_utils::ProtoWireType::kFixed64);
-    return res;
-  }
-
-  bool as_bool() const {
-    PERFETTO_DCHECK(!valid() || type() == proto_utils::ProtoWireType::kVarInt);
-    return static_cast<bool>(int_value_);
-  }
-
-  uint32_t as_uint32() const {
-    PERFETTO_DCHECK(!valid() || type() == proto_utils::ProtoWireType::kVarInt ||
-                    type() == proto_utils::ProtoWireType::kFixed32);
-    return static_cast<uint32_t>(int_value_);
-  }
-
-  int32_t as_int32() const {
-    PERFETTO_DCHECK(!valid() || type() == proto_utils::ProtoWireType::kVarInt ||
-                    type() == proto_utils::ProtoWireType::kFixed32);
-    return static_cast<int32_t>(int_value_);
-  }
-
-  int32_t as_sint32() const {
-    PERFETTO_DCHECK(!valid() || type() == proto_utils::ProtoWireType::kVarInt);
-    return proto_utils::ZigZagDecode(static_cast<uint32_t>(int_value_));
-  }
-
-  uint64_t as_uint64() const {
-    PERFETTO_DCHECK(!valid() || type() == proto_utils::ProtoWireType::kVarInt ||
-                    type() == proto_utils::ProtoWireType::kFixed32 ||
-                    type() == proto_utils::ProtoWireType::kFixed64);
-    return int_value_;
-  }
-
-  int64_t as_int64() const {
-    PERFETTO_DCHECK(!valid() || type() == proto_utils::ProtoWireType::kVarInt ||
-                    type() == proto_utils::ProtoWireType::kFixed32 ||
-                    type() == proto_utils::ProtoWireType::kFixed64);
-    return static_cast<int64_t>(int_value_);
-  }
-
-  int64_t as_sint64() const {
-    PERFETTO_DCHECK(!valid() || type() == proto_utils::ProtoWireType::kVarInt);
-    return proto_utils::ZigZagDecode(static_cast<uint64_t>(int_value_));
-  }
-
-  float as_float() const {
-    PERFETTO_DCHECK(!valid() || type() == proto_utils::ProtoWireType::kFixed32);
-    float res;
-    uint32_t value32 = static_cast<uint32_t>(int_value_);
-    memcpy(&res, &value32, sizeof(res));
-    return res;
-  }
-
-  double as_double() const {
-    PERFETTO_DCHECK(!valid() || type() == proto_utils::ProtoWireType::kFixed64);
-    double res;
-    memcpy(&res, &int_value_, sizeof(res));
-    return res;
-  }
-
-  ConstChars as_string() const {
-    PERFETTO_DCHECK(!valid() ||
-                    type() == proto_utils::ProtoWireType::kLengthDelimited);
-    return ConstChars{reinterpret_cast<const char*>(data()), size_};
-  }
-
-  std::string as_std_string() const { return as_string().ToStdString(); }
-
-  ConstBytes as_bytes() const {
-    PERFETTO_DCHECK(!valid() ||
-                    type() == proto_utils::ProtoWireType::kLengthDelimited);
-    return ConstBytes{data(), size_};
-  }
-
-  const uint8_t* data() const {
-    PERFETTO_DCHECK(!valid() ||
-                    type() == proto_utils::ProtoWireType::kLengthDelimited);
-    return reinterpret_cast<const uint8_t*>(int_value_);
-  }
-
-  size_t size() const {
-    PERFETTO_DCHECK(!valid() ||
-                    type() == proto_utils::ProtoWireType::kLengthDelimited);
-    return size_;
-  }
-
-  uint64_t raw_int_value() const { return int_value_; }
-
-  void initialize(uint16_t id,
-                  uint8_t type,
-                  uint64_t int_value,
-                  uint32_t size) {
-    id_ = id;
-    type_ = type;
-    int_value_ = int_value;
-    size_ = size;
-  }
-
-  // For use with templates. This is used by RepeatedFieldIterator::operator*().
-  void get(bool* val) const { *val = as_bool(); }
-  void get(uint32_t* val) const { *val = as_uint32(); }
-  void get(int32_t* val) const { *val = as_int32(); }
-  void get(uint64_t* val) const { *val = as_uint64(); }
-  void get(int64_t* val) const { *val = as_int64(); }
-  void get(float* val) const { *val = as_float(); }
-  void get(double* val) const { *val = as_double(); }
-  void get(std::string* val) const { *val = as_std_string(); }
-  void get(ConstChars* val) const { *val = as_string(); }
-  void get(ConstBytes* val) const { *val = as_bytes(); }
-  void get_signed(int32_t* val) const { *val = as_sint32(); }
-  void get_signed(int64_t* val) const { *val = as_sint64(); }
-
-  // For enum types.
-  template <typename T,
-            typename = typename std::enable_if<std::is_enum<T>::value, T>::type>
-  void get(T* val) const {
-    *val = static_cast<T>(as_int32());
-  }
-
-  // Serializes the field back into a proto-encoded byte stream and appends it
-  // to |dst|. |dst| is resized accordingly.
-  void SerializeAndAppendTo(std::string* dst) const;
-
-  // Serializes the field back into a proto-encoded byte stream and appends it
-  // to |dst|. |dst| is resized accordingly.
-  void SerializeAndAppendTo(std::vector<uint8_t>* dst) const;
-
- private:
-  template <typename Container>
-  void SerializeAndAppendToInternal(Container* dst) const;
-
-  // Fields are deliberately not initialized to keep the class trivially
-  // constructible. It makes a large perf difference for ProtoDecoder.
-
-  uint64_t int_value_;  // In kLengthDelimited this contains the data() addr.
-  uint32_t size_;       // Only valid when when type == kLengthDelimited.
-  uint16_t id_;         // Proto field ordinal.
-  uint8_t type_;        // proto_utils::ProtoWireType.
-};
-
-// The Field struct is used in a lot of perf-sensitive contexts.
-static_assert(sizeof(Field) == 16, "Field struct too big");
-
-}  // namespace protozero
-
-#endif  // INCLUDE_PERFETTO_PROTOZERO_FIELD_H_
-// gen_amalgamated begin header: include/perfetto/tracing/core/forward_decls.h
-/*
- * Copyright (C) 2019 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef INCLUDE_PERFETTO_TRACING_CORE_FORWARD_DECLS_H_
-#define INCLUDE_PERFETTO_TRACING_CORE_FORWARD_DECLS_H_
-
-// Forward declares classes that are generated at build-time from protos.
-// First of all, why are we forward declaring at all?
-//  1. Chromium diverges from the Google style guide on this, because forward
-//     declarations typically make build times faster, and that's a desirable
-//     property for a large and complex codebase.
-//  2. Adding #include to build-time-generated headers from headers typically
-//     creates subtle build errors that are hard to spot in GN. This is because
-//     once a standard header (say foo.h) has an #include "protos/foo.gen.h",
-//     the build target that depends on foo.h needs to depend on the genrule
-//     that generates foo.gen.h. This is achievable using public_deps in GN but
-//     is not testable / enforceable, hence too easy to get wrong.
-
-// Historically the classes below used to be generated from the corresponding
-// .proto(s) at CL *check-in* time (!= build time) in the ::perfetto namespace.
-// Nowadays we have code everywhere that assume the right class is
-// ::perfetto::TraceConfig or the like. Back then other headers could just
-// forward declared ::perfetto::TraceConfig. These days, the real class is
-// ::perfetto::protos::gen::TraceConfig and core/trace_config.h aliases that as
-// using ::perfetto::TraceConfig = ::perfetto::protos::gen::TraceConfig.
-// In C++ one cannot forward declare a type alias (but only the aliased type).
-// Hence this header, which should be used every time one wants to forward
-// declare classes like TraceConfig.
-
-// The overall plan is that, when one of the classes below is needed:
-// The .h file includes this file.
-// The .cc file includes perfetto/tracing/core/trace_config.h (or equiv). That
-// header will pull the full declaration from trace_config.gen.h and will also
-// setup the alias in the ::perfetto namespace.
-
-namespace perfetto {
-namespace protos {
-namespace gen {
-
-class ChromeConfig;
-class CommitDataRequest;
-class DataSourceConfig;
-class DataSourceDescriptor;
-class ObservableEvents;
-class TraceConfig;
-class TraceStats;
-class TracingServiceCapabilities;
-class TracingServiceState;
-
-}  // namespace gen
-}  // namespace protos
-
-using ChromeConfig = ::perfetto::protos::gen::ChromeConfig;
-using CommitDataRequest = ::perfetto::protos::gen::CommitDataRequest;
-using DataSourceConfig = ::perfetto::protos::gen::DataSourceConfig;
-using DataSourceDescriptor = ::perfetto::protos::gen::DataSourceDescriptor;
-using ObservableEvents = ::perfetto::protos::gen::ObservableEvents;
-using TraceConfig = ::perfetto::protos::gen::TraceConfig;
-using TraceStats = ::perfetto::protos::gen::TraceStats;
-using TracingServiceCapabilities =
-    ::perfetto::protos::gen::TracingServiceCapabilities;
-using TracingServiceState = ::perfetto::protos::gen::TracingServiceState;
-
-}  // namespace perfetto
-
-#endif  // INCLUDE_PERFETTO_TRACING_CORE_FORWARD_DECLS_H_
-// gen_amalgamated begin header: include/perfetto/tracing/internal/basic_types.h
-/*
- * Copyright (C) 2019 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef INCLUDE_PERFETTO_TRACING_INTERNAL_BASIC_TYPES_H_
-#define INCLUDE_PERFETTO_TRACING_INTERNAL_BASIC_TYPES_H_
-
-#include <stddef.h>
-#include <stdint.h>
-
-namespace perfetto {
-namespace internal {
-
-// A static_assert in tracing_muxer_impl.cc guarantees that this stays in sync
-// with the definition in tracing/core/basic_types.h
-using BufferId = uint16_t;
-
-// This is a direct index in the TracingMuxer::backends_ vector.
-// Backends are only added and never removed.
-using TracingBackendId = size_t;
-
-// Max numbers of data sources that can be registered in a process.
-constexpr size_t kMaxDataSources = 32;
-
-// Max instances for each data source type. This typically matches the
-// "max number of concurrent tracing sessions". However remember that a data
-// source can be instantiated more than once within one tracing session by
-// creating two entries for it in the trace config.
-constexpr size_t kMaxDataSourceInstances = 8;
-
-}  // namespace internal
-}  // namespace perfetto
-
-#endif  // INCLUDE_PERFETTO_TRACING_INTERNAL_BASIC_TYPES_H_
-// gen_amalgamated begin header: include/perfetto/tracing/internal/data_source_internal.h
-// gen_amalgamated begin header: include/perfetto/tracing/trace_writer_base.h
-// gen_amalgamated begin header: include/perfetto/protozero/message_handle.h
-// gen_amalgamated begin header: include/perfetto/protozero/message.h
-// gen_amalgamated begin header: include/perfetto/protozero/scattered_stream_writer.h
-/*
- * Copyright (C) 2017 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef INCLUDE_PERFETTO_PROTOZERO_SCATTERED_STREAM_WRITER_H_
-#define INCLUDE_PERFETTO_PROTOZERO_SCATTERED_STREAM_WRITER_H_
-
-#include <assert.h>
-#include <stddef.h>
-#include <stdint.h>
-#include <string.h>
-
-// gen_amalgamated expanded: #include "perfetto/base/compiler.h"
-// gen_amalgamated expanded: #include "perfetto/base/export.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/contiguous_memory_range.h"
-
-namespace protozero {
-
-// This class deals with the following problem: append-only proto messages want
-// to write a stream of bytes, without caring about the implementation of the
-// underlying buffer (which concretely will be either the trace ring buffer
-// or a heap-allocated buffer). The main deal is: proto messages don't know in
-// advance what their size will be.
-// Due to the tracing buffer being split into fixed-size chunks, on some
-// occasions, these writes need to be spread over two (or more) non-contiguous
-// chunks of memory. Similarly, when the buffer is backed by the heap, we want
-// to avoid realloc() calls, as they might cause a full copy of the contents
-// of the buffer.
-// The purpose of this class is to abstract away the non-contiguous write logic.
-// This class knows how to deal with writes as long as they fall in the same
-// ContiguousMemoryRange and defers the chunk-chaining logic to the Delegate.
-class PERFETTO_EXPORT ScatteredStreamWriter {
- public:
-  class PERFETTO_EXPORT Delegate {
-   public:
-    virtual ~Delegate();
-    virtual ContiguousMemoryRange GetNewBuffer() = 0;
-  };
-
-  explicit ScatteredStreamWriter(Delegate* delegate);
-  ~ScatteredStreamWriter();
-
-  inline void WriteByte(uint8_t value) {
-    if (write_ptr_ >= cur_range_.end)
-      Extend();
-    *write_ptr_++ = value;
-  }
-
-  // Assumes that the caller checked that there is enough headroom.
-  // TODO(primiano): perf optimization, this is a tracing hot path. The
-  // compiler can make strong optimization on memcpy if the size arg is a
-  // constexpr. Make a templated variant of this for fixed-size writes.
-  // TODO(primiano): restrict / noalias might also help.
-  inline void WriteBytesUnsafe(const uint8_t* src, size_t size) {
-    uint8_t* const end = write_ptr_ + size;
-    assert(end <= cur_range_.end);
-    memcpy(write_ptr_, src, size);
-    write_ptr_ = end;
-  }
-
-  inline void WriteBytes(const uint8_t* src, size_t size) {
-    uint8_t* const end = write_ptr_ + size;
-    if (PERFETTO_LIKELY(end <= cur_range_.end))
-      return WriteBytesUnsafe(src, size);
-    WriteBytesSlowPath(src, size);
-  }
-
-  void WriteBytesSlowPath(const uint8_t* src, size_t size);
-
-  // Reserves a fixed amount of bytes to be backfilled later. The reserved range
-  // is guaranteed to be contiguous and not span across chunks. |size| has to be
-  // <= than the size of a new buffer returned by the Delegate::GetNewBuffer().
-  uint8_t* ReserveBytes(size_t size);
-
-  // Fast (but unsafe) version of the above. The caller must have previously
-  // checked that there are at least |size| contiguous bytes available.
-  // Returns only the start pointer of the reservation.
-  uint8_t* ReserveBytesUnsafe(size_t size) {
-    uint8_t* begin = write_ptr_;
-    write_ptr_ += size;
-    assert(write_ptr_ <= cur_range_.end);
-    return begin;
-  }
-
-  // Resets the buffer boundaries and the write pointer to the given |range|.
-  // Subsequent WriteByte(s) will write into |range|.
-  void Reset(ContiguousMemoryRange range);
-
-  // Number of contiguous free bytes in |cur_range_| that can be written without
-  // requesting a new buffer.
-  size_t bytes_available() const {
-    return static_cast<size_t>(cur_range_.end - write_ptr_);
-  }
-
-  uint8_t* write_ptr() const { return write_ptr_; }
-
-  uint64_t written() const {
-    return written_previously_ +
-           static_cast<uint64_t>(write_ptr_ - cur_range_.begin);
-  }
-
- private:
-  ScatteredStreamWriter(const ScatteredStreamWriter&) = delete;
-  ScatteredStreamWriter& operator=(const ScatteredStreamWriter&) = delete;
-
-  void Extend();
-
-  Delegate* const delegate_;
-  ContiguousMemoryRange cur_range_;
-  uint8_t* write_ptr_;
-  uint64_t written_previously_ = 0;
-};
-
-}  // namespace protozero
-
-#endif  // INCLUDE_PERFETTO_PROTOZERO_SCATTERED_STREAM_WRITER_H_
-/*
- * Copyright (C) 2017 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef INCLUDE_PERFETTO_PROTOZERO_MESSAGE_H_
-#define INCLUDE_PERFETTO_PROTOZERO_MESSAGE_H_
-
-#include <assert.h>
-#include <stdint.h>
-#include <string.h>
-
-#include <string>
-#include <type_traits>
-
-// gen_amalgamated expanded: #include "perfetto/base/export.h"
-// gen_amalgamated expanded: #include "perfetto/base/logging.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/contiguous_memory_range.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/proto_utils.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/scattered_stream_writer.h"
-
-namespace perfetto {
-namespace shm_fuzz {
-class FakeProducer;
-}  // namespace shm_fuzz
-}  // namespace perfetto
-
-namespace protozero {
-
-class MessageArena;
-class MessageHandleBase;
-
-// Base class extended by the proto C++ stubs generated by the ProtoZero
-// compiler. This class provides the minimal runtime required to support
-// append-only operations and is designed for performance. None of the methods
-// require any dynamic memory allocation, unless more than 16 nested messages
-// are created via BeginNestedMessage() calls.
-class PERFETTO_EXPORT Message {
- public:
-  friend class MessageHandleBase;
-
-  // The ctor is deliberately a no-op to avoid forwarding args from all
-  // subclasses. The real initialization is performed by Reset().
-  // Nested messages are allocated via placement new by MessageArena and
-  // implictly destroyed when the RootMessage's arena goes away. This is
-  // fine as long as all the fields are PODs, which is checked by the
-  // static_assert()s in the Reset() method.
-  Message() = default;
-
-  // Clears up the state, allowing the message to be reused as a fresh one.
-  void Reset(ScatteredStreamWriter*, MessageArena*);
-
-  // Commits all the changes to the buffer (backfills the size field of this and
-  // all nested messages) and seals the message. Returns the size of the message
-  // (and all nested sub-messages), without taking into account any chunking.
-  // Finalize is idempotent and can be called several times w/o side effects.
-  uint32_t Finalize();
-
-  // Optional. If is_valid() == true, the corresponding memory region (its
-  // length == proto_utils::kMessageLengthFieldSize) is backfilled with the size
-  // of this message (minus |size_already_written| below). This is the mechanism
-  // used by messages to backfill their corresponding size field in the parent
-  // message.
-  uint8_t* size_field() const { return size_field_; }
-  void set_size_field(uint8_t* size_field) { size_field_ = size_field; }
-
-  // This is to deal with case of backfilling the size of a root (non-nested)
-  // message which is split into multiple chunks. Upon finalization only the
-  // partial size that lies in the last chunk has to be backfilled.
-  void inc_size_already_written(uint32_t sz) { size_already_written_ += sz; }
-
-  Message* nested_message() { return nested_message_; }
-
-  bool is_finalized() const { return finalized_; }
-
-#if PERFETTO_DCHECK_IS_ON()
-  void set_handle(MessageHandleBase* handle) { handle_ = handle; }
-#endif
-
-  // Proto types: uint64, uint32, int64, int32, bool, enum.
-  template <typename T>
-  void AppendVarInt(uint32_t field_id, T value) {
-    if (nested_message_)
-      EndNestedMessage();
-
-    uint8_t buffer[proto_utils::kMaxSimpleFieldEncodedSize];
-    uint8_t* pos = buffer;
-
-    pos = proto_utils::WriteVarInt(proto_utils::MakeTagVarInt(field_id), pos);
-    // WriteVarInt encodes signed values in two's complement form.
-    pos = proto_utils::WriteVarInt(value, pos);
-    WriteToStream(buffer, pos);
-  }
-
-  // Proto types: sint64, sint32.
-  template <typename T>
-  void AppendSignedVarInt(uint32_t field_id, T value) {
-    AppendVarInt(field_id, proto_utils::ZigZagEncode(value));
-  }
-
-  // Proto types: bool, enum (small).
-  // Faster version of AppendVarInt for tiny numbers.
-  void AppendTinyVarInt(uint32_t field_id, int32_t value) {
-    PERFETTO_DCHECK(0 <= value && value < 0x80);
-    if (nested_message_)
-      EndNestedMessage();
-
-    uint8_t buffer[proto_utils::kMaxSimpleFieldEncodedSize];
-    uint8_t* pos = buffer;
-    // MakeTagVarInt gets super optimized here for constexpr.
-    pos = proto_utils::WriteVarInt(proto_utils::MakeTagVarInt(field_id), pos);
-    *pos++ = static_cast<uint8_t>(value);
-    WriteToStream(buffer, pos);
-  }
-
-  // Proto types: fixed64, sfixed64, fixed32, sfixed32, double, float.
-  template <typename T>
-  void AppendFixed(uint32_t field_id, T value) {
-    if (nested_message_)
-      EndNestedMessage();
-
-    uint8_t buffer[proto_utils::kMaxSimpleFieldEncodedSize];
-    uint8_t* pos = buffer;
-
-    pos = proto_utils::WriteVarInt(proto_utils::MakeTagFixed<T>(field_id), pos);
-    memcpy(pos, &value, sizeof(T));
-    pos += sizeof(T);
-    // TODO: Optimize memcpy performance, see http://crbug.com/624311 .
-    WriteToStream(buffer, pos);
-  }
-
-  void AppendString(uint32_t field_id, const char* str);
-
-  void AppendString(uint32_t field_id, const std::string& str) {
-    AppendBytes(field_id, str.data(), str.size());
-  }
-
-  void AppendBytes(uint32_t field_id, const void* value, size_t size);
-
-  // Append raw bytes for a field, using the supplied |ranges| to
-  // copy from |num_ranges| individual buffers.
-  size_t AppendScatteredBytes(uint32_t field_id,
-                              ContiguousMemoryRange* ranges,
-                              size_t num_ranges);
-
-  // Begins a nested message. The returned object is owned by the MessageArena
-  // of the root message. The nested message ends either when Finalize() is
-  // called or when any other Append* method is called in the parent class.
-  // The template argument T is supposed to be a stub class auto generated from
-  // a .proto, hence a subclass of Message.
-  template <class T>
-  T* BeginNestedMessage(uint32_t field_id) {
-    // This is to prevent subclasses (which should be autogenerated, though), to
-    // introduce extra state fields (which wouldn't be initialized by Reset()).
-    static_assert(std::is_base_of<Message, T>::value,
-                  "T must be a subclass of Message");
-    static_assert(sizeof(T) == sizeof(Message),
-                  "Message subclasses cannot introduce extra state.");
-    return static_cast<T*>(BeginNestedMessageInternal(field_id));
-  }
-
-  // Gives read-only access to the underlying stream_writer. This is used only
-  // by few internals to query the state of the underlying buffer. It is almost
-  // always a bad idea to poke at the stream_writer() internals.
-  const ScatteredStreamWriter* stream_writer() const { return stream_writer_; }
-
-  // Appends some raw bytes to the message. The use-case for this is preserving
-  // unknown fields in the decode -> re-encode path of xxx.gen.cc classes
-  // generated by the cppgen_plugin.cc.
-  // The caller needs to guarantee that the appended data is properly
-  // proto-encoded and each field has a proto preamble.
-  void AppendRawProtoBytes(const void* data, size_t size) {
-    const uint8_t* src = reinterpret_cast<const uint8_t*>(data);
-    WriteToStream(src, src + size);
-  }
-
- private:
-  Message(const Message&) = delete;
-  Message& operator=(const Message&) = delete;
-
-  Message* BeginNestedMessageInternal(uint32_t field_id);
-
-  // Called by Finalize and Append* methods.
-  void EndNestedMessage();
-
-  void WriteToStream(const uint8_t* src_begin, const uint8_t* src_end) {
-    PERFETTO_DCHECK(!finalized_);
-    PERFETTO_DCHECK(src_begin <= src_end);
-    const uint32_t size = static_cast<uint32_t>(src_end - src_begin);
-    stream_writer_->WriteBytes(src_begin, size);
-    size_ += size;
-  }
-
-  // Only POD fields are allowed. This class's dtor is never called.
-  // See the comment on the static_assert in the corresponding .cc file.
-
-  // The stream writer interface used for the serialization.
-  ScatteredStreamWriter* stream_writer_;
-
-  // The storage used to allocate nested Message objects.
-  // This is owned by RootMessage<T>.
-  MessageArena* arena_;
-
-  // Pointer to the last child message created through BeginNestedMessage(), if
-  // any, nullptr otherwise. There is no need to keep track of more than one
-  // message per nesting level as the proto-zero API contract mandates that
-  // nested fields can be filled only in a stacked fashion. In other words,
-  // nested messages are finalized and sealed when any other field is set in the
-  // parent message (or the parent message itself is finalized) and cannot be
-  // accessed anymore afterwards.
-  Message* nested_message_;
-
-  // [optional] Pointer to a non-aligned pre-reserved var-int slot of
-  // kMessageLengthFieldSize bytes. When set, the Finalize() method will write
-  // the size of proto-encoded message in the pointed memory region.
-  uint8_t* size_field_;
-
-  // Keeps track of the size of the current message.
-  uint32_t size_;
-
-  // See comment for inc_size_already_written().
-  uint32_t size_already_written_;
-
-  // When true, no more changes to the message are allowed. This is to DCHECK
-  // attempts of writing to a message which has been Finalize()-d.
-  bool finalized_;
-
-#if PERFETTO_DCHECK_IS_ON()
-  // Current generation of message. Incremented on Reset.
-  // Used to detect stale handles.
-  uint32_t generation_;
-
-  MessageHandleBase* handle_;
-#endif
-};
-
-}  // namespace protozero
-
-#endif  // INCLUDE_PERFETTO_PROTOZERO_MESSAGE_H_
-/*
- * Copyright (C) 2017 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef INCLUDE_PERFETTO_PROTOZERO_MESSAGE_HANDLE_H_
-#define INCLUDE_PERFETTO_PROTOZERO_MESSAGE_HANDLE_H_
-
-#include <functional>
-
-// gen_amalgamated expanded: #include "perfetto/base/export.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/message.h"
-
-namespace protozero {
-
-class Message;
-
-// MessageHandle allows to decouple the lifetime of a proto message
-// from the underlying storage. It gives the following guarantees:
-// - The underlying message is finalized (if still alive) if the handle goes
-//   out of scope.
-// - In Debug / DCHECK_ALWAYS_ON builds, the handle becomes null once the
-//   message is finalized. This is to enforce the append-only API. For instance
-//   when adding two repeated messages, the addition of the 2nd one forces
-//   the finalization of the first.
-// Think about this as a WeakPtr<Message> which calls
-// Message::Finalize() when going out of scope.
-
-class PERFETTO_EXPORT MessageHandleBase {
- public:
-  ~MessageHandleBase();
-
-  // Move-only type.
-  MessageHandleBase(MessageHandleBase&&) noexcept;
-  MessageHandleBase& operator=(MessageHandleBase&&);
-  explicit operator bool() const {
-#if PERFETTO_DCHECK_IS_ON()
-    PERFETTO_DCHECK(!message_ || generation_ == message_->generation_);
-#endif
-    return !!message_;
-  }
-
- protected:
-  explicit MessageHandleBase(Message* = nullptr);
-  Message* operator->() const {
-#if PERFETTO_DCHECK_IS_ON()
-    PERFETTO_DCHECK(!message_ || generation_ == message_->generation_);
-#endif
-    return message_;
-  }
-  Message& operator*() const { return *(operator->()); }
-
- private:
-  friend class Message;
-  MessageHandleBase(const MessageHandleBase&) = delete;
-  MessageHandleBase& operator=(const MessageHandleBase&) = delete;
-
-  void reset_message() {
-    // This is called by Message::Finalize().
-    PERFETTO_DCHECK(message_->is_finalized());
-    message_ = nullptr;
-  }
-
-  void Move(MessageHandleBase&&);
-
-  void FinalizeMessage() { message_->Finalize(); }
-
-  Message* message_;
-#if PERFETTO_DCHECK_IS_ON()
-  uint32_t generation_;
-#endif
-};
-
-template <typename T>
-class MessageHandle : public MessageHandleBase {
- public:
-  MessageHandle() : MessageHandle(nullptr) {}
-  explicit MessageHandle(T* message) : MessageHandleBase(message) {}
-
-  explicit operator bool() const { return MessageHandleBase::operator bool(); }
-
-  T& operator*() const {
-    return static_cast<T&>(MessageHandleBase::operator*());
-  }
-
-  T* operator->() const {
-    return static_cast<T*>(MessageHandleBase::operator->());
-  }
-
-  T* get() const { return static_cast<T*>(MessageHandleBase::operator->()); }
-};
-
-}  // namespace protozero
-
-#endif  // INCLUDE_PERFETTO_PROTOZERO_MESSAGE_HANDLE_H_
-/*
- * Copyright (C) 2019 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef INCLUDE_PERFETTO_TRACING_TRACE_WRITER_BASE_H_
-#define INCLUDE_PERFETTO_TRACING_TRACE_WRITER_BASE_H_
-
-// gen_amalgamated expanded: #include "perfetto/protozero/message_handle.h"
-
-namespace perfetto {
-
-namespace protos {
-namespace pbzero {
-class TracePacket;
-}  // namespace pbzero
-}  // namespace protos
-
-// The bare-minimum subset of the TraceWriter interface that is exposed as a
-// fully public API.
-// See comments in /include/perfetto/ext/tracing/core/trace_writer.h.
-class TraceWriterBase {
- public:
-  virtual ~TraceWriterBase();
-
-  virtual protozero::MessageHandle<protos::pbzero::TracePacket>
-  NewTracePacket() = 0;
-
-  virtual void Flush(std::function<void()> callback = {}) = 0;
-  virtual uint64_t written() const = 0;
-};
-
-}  // namespace perfetto
-
-#endif  // INCLUDE_PERFETTO_TRACING_TRACE_WRITER_BASE_H_
-/*
- * Copyright (C) 2019 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef INCLUDE_PERFETTO_TRACING_INTERNAL_DATA_SOURCE_INTERNAL_H_
-#define INCLUDE_PERFETTO_TRACING_INTERNAL_DATA_SOURCE_INTERNAL_H_
-
-#include <stddef.h>
-#include <stdint.h>
-
-#include <array>
-#include <atomic>
-#include <functional>
-#include <memory>
-#include <mutex>
-
-// No perfetto headers (other than tracing/api and protozero) should be here.
-// gen_amalgamated expanded: #include "perfetto/tracing/buffer_exhausted_policy.h"
-// gen_amalgamated expanded: #include "perfetto/tracing/internal/basic_types.h"
-// gen_amalgamated expanded: #include "perfetto/tracing/trace_writer_base.h"
-
-namespace perfetto {
-
-class DataSourceBase;
-class InterceptorBase;
-class TraceWriterBase;
-
-namespace internal {
-
-class TracingTLS;
-
-// This maintains the internal state of a data source instance that is used only
-// to implement the tracing mechanics and is not exposed to the API client.
-// There is one of these object per DataSource instance (up to
-// kMaxDataSourceInstances).
-struct DataSourceState {
-  // This boolean flag determines whether the DataSource::Trace() method should
-  // do something or be a no-op. This flag doesn't give the full guarantee
-  // that tracing data will be visible in the trace, it just makes it so that
-  // the client attemps writing trace data and interacting with the service.
-  // For instance, when a tracing session ends the service will reject data
-  // commits that arrive too late even if the producer hasn't received the stop
-  // IPC message.
-  // This flag is set right before calling OnStart() and cleared right before
-  // calling OnStop(), unless using HandleStopAsynchronously() (see comments
-  // in data_source.h).
-  // Keep this flag as the first field. This allows the compiler to directly
-  // dereference the DataSourceState* pointer in the trace fast-path without
-  // doing extra pointr arithmetic.
-  bool trace_lambda_enabled = false;
-
-  // The central buffer id that all TraceWriter(s) created by this data source
-  // must target.
-  BufferId buffer_id = 0;
-
-  // The index within TracingMuxerImpl.backends_. Practically it allows to
-  // lookup the Producer object, and hence the IPC channel, for this data
-  // source.
-  TracingBackendId backend_id = 0;
-
-  // Each backend may connect to the tracing service multiple times if a
-  // disconnection occurs. This counter is used to uniquely identify each
-  // connection so that trace writers don't get reused across connections.
-  uint32_t backend_connection_id = 0;
-
-  // The instance id as assigned by the tracing service. Note that because a
-  // process can be connected to >1 services, this ID is not globally unique but
-  // is only unique within the scope of its backend.
-  // Only the tuple (backend_id, data_source_instance_id) is globally unique.
-  uint64_t data_source_instance_id = 0;
-
-  // A hash of the trace config used by this instance. This is used to
-  // de-duplicate instances for data sources with identical names (e.g., track
-  // event).
-  uint64_t config_hash = 0;
-
-  // If this data source is being intercepted (see Interceptor), this field
-  // contains the non-zero id of a registered interceptor which should receive
-  // trace packets for this session. Note: interceptor id 1 refers to the first
-  // element of TracingMuxerImpl::interceptors_ with successive numbers using
-  // the following slots.
-  uint32_t interceptor_id = 0;
-
-  // This lock is not held to implement Trace() and it's used only if the trace
-  // code wants to access its own data source state.
-  // This is to prevent that accessing the data source on an arbitrary embedder
-  // thread races with the internal IPC thread destroying the data source
-  // because of a end-of-tracing notification from the service.
-  // This lock is also used to protect access to a possible interceptor for this
-  // data source session.
-  std::recursive_mutex lock;
-  std::unique_ptr<DataSourceBase> data_source;
-  std::unique_ptr<InterceptorBase> interceptor;
-};
-
-// This is to allow lazy-initialization and avoid static initializers and
-// at-exit destructors. All the entries are initialized via placement-new when
-// DataSource::Register() is called, see TracingMuxerImpl::RegisterDataSource().
-struct DataSourceStateStorage {
-  alignas(DataSourceState) char storage[sizeof(DataSourceState)]{};
-};
-
-// Per-DataSource-type global state.
-struct DataSourceStaticState {
-  // Unique index of the data source, assigned at registration time.
-  uint32_t index = kMaxDataSources;
-
-  // A bitmap that tells about the validity of each |instances| entry. When the
-  // i-th bit of the bitmap it's set, instances[i] is valid.
-  std::atomic<uint32_t> valid_instances{};
-  std::array<DataSourceStateStorage, kMaxDataSourceInstances> instances{};
-
-  // Incremented whenever incremental state should be reset for any instance of
-  // this data source.
-  std::atomic<uint32_t> incremental_state_generation{};
-
-  // Can be used with a cached |valid_instances| bitmap.
-  DataSourceState* TryGetCached(uint32_t cached_bitmap, size_t n) {
-    return cached_bitmap & (1 << n)
-               ? reinterpret_cast<DataSourceState*>(&instances[n])
-               : nullptr;
-  }
-
-  DataSourceState* TryGet(size_t n) {
-    return TryGetCached(valid_instances.load(std::memory_order_acquire), n);
-  }
-
-  void CompilerAsserts() {
-    static_assert(sizeof(valid_instances.load()) * 8 >= kMaxDataSourceInstances,
-                  "kMaxDataSourceInstances too high");
-  }
-};
-
-// Per-DataSource-instance thread-local state.
-struct DataSourceInstanceThreadLocalState {
-  using IncrementalStatePointer = std::unique_ptr<void, void (*)(void*)>;
-
-  void Reset() {
-    trace_writer.reset();
-    incremental_state.reset();
-    backend_id = 0;
-    backend_connection_id = 0;
-    buffer_id = 0;
-    data_source_instance_id = 0;
-    incremental_state_generation = 0;
-    is_intercepted = false;
-  }
-
-  std::unique_ptr<TraceWriterBase> trace_writer;
-  IncrementalStatePointer incremental_state = {nullptr, [](void*) {}};
-  uint32_t incremental_state_generation;
-  TracingBackendId backend_id;
-  uint32_t backend_connection_id;
-  BufferId buffer_id;
-  uint64_t data_source_instance_id;
-  bool is_intercepted;
-};
-
-// Per-DataSource-type thread-local state.
-struct DataSourceThreadLocalState {
-  DataSourceStaticState* static_state = nullptr;
-
-  // Pointer to the parent tls object that holds us. Used to retrieve the
-  // generation, which is per-global-TLS and not per data-source.
-  TracingTLS* root_tls = nullptr;
-
-  // One entry per each data source instance.
-  std::array<DataSourceInstanceThreadLocalState, kMaxDataSourceInstances>
-      per_instance{};
-};
-
-}  // namespace internal
-}  // namespace perfetto
-
-#endif  // INCLUDE_PERFETTO_TRACING_INTERNAL_DATA_SOURCE_INTERNAL_H_
-// gen_amalgamated begin header: include/perfetto/tracing/locked_handle.h
-/*
- * Copyright (C) 2019 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef INCLUDE_PERFETTO_TRACING_LOCKED_HANDLE_H_
-#define INCLUDE_PERFETTO_TRACING_LOCKED_HANDLE_H_
-
-#include <mutex>
-
-namespace perfetto {
-
-// This is used for GetDataSourceLocked(), in the (rare) case where the
-// tracing code wants to access the state of its data source from the Trace()
-// method.
-template <typename T>
-class LockedHandle {
- public:
-  LockedHandle(std::recursive_mutex* mtx, T* obj) : lock_(*mtx), obj_(obj) {}
-  LockedHandle() = default;  // For the invalid case.
-  LockedHandle(LockedHandle&&) = default;
-  LockedHandle& operator=(LockedHandle&&) = default;
-
-  bool valid() const { return obj_; }
-  explicit operator bool() const { return valid(); }
-
-  T* operator->() {
-    assert(valid());
-    return obj_;
-  }
-
-  T& operator*() { return *(this->operator->()); }
-
- private:
-  std::unique_lock<std::recursive_mutex> lock_;
-  T* obj_ = nullptr;
-};
-
-}  // namespace perfetto
-
-#endif  // INCLUDE_PERFETTO_TRACING_LOCKED_HANDLE_H_
-/*
- * Copyright (C) 2020 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef INCLUDE_PERFETTO_TRACING_INTERCEPTOR_H_
-#define INCLUDE_PERFETTO_TRACING_INTERCEPTOR_H_
-
-// An interceptor is used to redirect trace packets written by a data source
-// into a custom backend instead of the normal Perfetto tracing service. For
-// example, the console interceptor prints all trace packets to the console as
-// they are generated. Another potential use is exporting trace data to another
-// tracing service such as Android ATrace or Windows ETW.
-//
-// An interceptor is defined by subclassing the perfetto::Interceptor template:
-//
-// class MyInterceptor : public perfetto::Interceptor<MyInterceptor> {
-//  public:
-//   ~MyInterceptor() override = default;
-//
-//   // This function is called for each intercepted trace packet. |context|
-//   // contains information about the trace packet as well as other state
-//   // tracked by the interceptor (e.g., see ThreadLocalState).
-//   //
-//   // Intercepted trace data is provided in the form of serialized protobuf
-//   // bytes, accessed through the |context.packet_data| field.
-//   //
-//   // Warning: this function can be called on any thread at any time. See
-//   // below for how to safely access shared interceptor data from here.
-//   static void OnTracePacket(InterceptorContext context) {
-//     perfetto::protos::pbzero::TracePacket::Decoder packet(
-//         context.packet_data.data, context.packet_data.size);
-//     // ... Write |packet| to the desired destination ...
-//   }
-// };
-//
-// An interceptor should be registered before any tracing sessions are started.
-// Note that the interceptor also needs to be activated through the trace config
-// as shown below.
-//
-//   perfetto::InterceptorDescriptor desc;
-//   desc.set_name("my_interceptor");
-//   MyInterceptor::Register(desc);
-//
-// Finally, an interceptor is enabled through the trace config like this:
-//
-//   perfetto::TraceConfig cfg;
-//   auto* ds_cfg = cfg.add_data_sources()->mutable_config();
-//   ds_cfg->set_name("data_source_to_intercept");   // e.g. "track_event"
-//   ds_cfg->mutable_interceptor_config()->set_name("my_interceptor");
-//
-// Once an interceptor is enabled, all data from the affected data sources is
-// sent to the interceptor instead of the main tracing buffer.
-//
-// Interceptor state
-// =================
-//
-// Besides the serialized trace packet data, the |OnTracePacket| interceptor
-// function can access three other types of state:
-//
-// 1. Global state: this is no different from a normal static function, but care
-//    must be taken because |OnTracePacket| can be called concurrently on any
-//    thread at any time.
-//
-// 2. Per-data source instance state: since the interceptor class is
-//    automatically instantiated for each intercepted data source, its fields
-//    can be used to store per-instance data such as the trace config. This data
-//    can be maintained through the OnSetup/OnStart/OnStop callbacks:
-//
-//    class MyInterceptor : public perfetto::Interceptor<MyInterceptor> {
-//     public:
-//      void OnSetup(const SetupArgs& args) override {
-//        enable_foo_ = args.config.interceptor_config().enable_foo();
-//      }
-//
-//      bool enable_foo_{};
-//    };
-//
-//    In the interceptor function this data must be accessed through a scoped
-//    lock for safety:
-//
-//    class MyInterceptor : public perfetto::Interceptor<MyInterceptor> {
-//      ...
-//      static void OnTracePacket(InterceptorContext context) {
-//        auto my_interceptor = context.GetInterceptorLocked();
-//        if (my_interceptor) {
-//           // Access fields of MyInterceptor here.
-//           if (my_interceptor->enable_foo_) { ... }
-//        }
-//        ...
-//      }
-//    };
-//
-//    Since accessing this data involves holding a lock, it should be done
-//    sparingly.
-//
-// 3. Per-thread/TraceWriter state: many data sources use interning to avoid
-//    repeating common data in the trace. Since the interning dictionaries are
-//    typically kept individually for each TraceWriter sequence (i.e., per
-//    thread), an interceptor can declare a data structure with lifetime
-//    matching the TraceWriter:
-//
-//    class MyInterceptor : public perfetto::Interceptor<MyInterceptor> {
-//     public:
-//      struct ThreadLocalState
-//          : public perfetto::InterceptorBase::ThreadLocalState {
-//        ThreadLocalState(ThreadLocalStateArgs&) override = default;
-//        ~ThreadLocalState() override = default;
-//
-//        std::map<size_t, std::string> event_names;
-//      };
-//    };
-//
-//    This per-thread state can then be accessed and maintained in
-//    |OnTracePacket| like this:
-//
-//    class MyInterceptor : public perfetto::Interceptor<MyInterceptor> {
-//      ...
-//      static void OnTracePacket(InterceptorContext context) {
-//        // Updating interned data.
-//        auto& tls = context.GetThreadLocalState();
-//        if (parsed_packet.sequence_flags() & perfetto::protos::pbzero::
-//                TracePacket::SEQ_INCREMENTAL_STATE_CLEARED) {
-//          tls.event_names.clear();
-//        }
-//        for (const auto& entry : parsed_packet.interned_data().event_names())
-//          tls.event_names[entry.iid()] = entry.name();
-//
-//        // Looking up interned data.
-//        if (parsed_packet.has_track_event()) {
-//          size_t name_iid = parsed_packet.track_event().name_iid();
-//          const std::string& event_name = tls.event_names[name_iid];
-//        }
-//        ...
-//      }
-//    };
-//
-
-#include <functional>
-
-// gen_amalgamated expanded: #include "perfetto/protozero/field.h"
-// gen_amalgamated expanded: #include "perfetto/tracing/core/forward_decls.h"
-// gen_amalgamated expanded: #include "perfetto/tracing/internal/basic_types.h"
-// gen_amalgamated expanded: #include "perfetto/tracing/internal/data_source_internal.h"
-// gen_amalgamated expanded: #include "perfetto/tracing/locked_handle.h"
-
-namespace {
-class MockTracingMuxer;
-}
-
-namespace perfetto {
-namespace protos {
-namespace gen {
-class DataSourceConfig;
-class InterceptorDescriptor;
-}  // namespace gen
-}  // namespace protos
-
-using protos::gen::InterceptorDescriptor;
-
-namespace internal {
-class InterceptorTraceWriter;
-class TracingMuxer;
-class TracingMuxerFake;
-class TracingMuxerImpl;
-}  // namespace internal
-
-// A virtual base class for interceptors. Users should derive from the templated
-// subclass below instead of this one.
-class PERFETTO_EXPORT InterceptorBase {
- public:
-  virtual ~InterceptorBase();
-
-  // A virtual base class for thread-local state needed by the interceptor.
-  // To define your own state, subclass this with the same name in the
-  // interceptor class. A reference to the state can then be looked up through
-  // context.GetThreadLocalState() in the trace packet interceptor function.
-  class ThreadLocalState {
-   public:
-    virtual ~ThreadLocalState();
-  };
-
-  struct SetupArgs {
-    const DataSourceConfig& config;
-  };
-  struct StartArgs {};
-  struct StopArgs {};
-
-  // Called when an intercepted data source is set up. Both the interceptor's
-  // and the data source's configuration is available in
-  // |SetupArgs|. Called on an internal Perfetto service thread, but not
-  // concurrently.
-  virtual void OnSetup(const SetupArgs&) {}
-
-  // Called when an intercepted data source starts. Called on an internal
-  // Perfetto service thread, but not concurrently.
-  virtual void OnStart(const StartArgs&) {}
-
-  // Called when an intercepted data source stops. Called on an internal
-  // Perfetto service thread, but not concurrently.
-  virtual void OnStop(const StopArgs&) {}
-
- private:
-  friend class internal::InterceptorTraceWriter;
-  friend class internal::TracingMuxer;
-  friend class internal::TracingMuxerFake;
-  friend class internal::TracingMuxerImpl;
-  friend MockTracingMuxer;
-  template <class T>
-  friend class Interceptor;
-
-  // Data passed from DataSource::Trace() into the interceptor.
-  struct TracePacketCallbackArgs {
-    internal::DataSourceStaticState* static_state;
-    uint32_t instance_index;
-    protozero::ConstBytes packet_data;
-    ThreadLocalState* tls;
-  };
-
-  // These callback functions are defined as stateless to avoid accidentally
-  // introducing cross-thread data races.
-  using TLSFactory = std::unique_ptr<ThreadLocalState> (*)(
-      internal::DataSourceStaticState*,
-      uint32_t data_source_instance_index);
-  using TracePacketCallback = void (*)(TracePacketCallbackArgs);
-
-  static void RegisterImpl(
-      const InterceptorDescriptor& descriptor,
-      std::function<std::unique_ptr<InterceptorBase>()> factory,
-      InterceptorBase::TLSFactory tls_factory,
-      InterceptorBase::TracePacketCallback on_trace_packet);
-};
-
-// Templated interceptor instantiation. See above for usage.
-template <class InterceptorType>
-class PERFETTO_EXPORT Interceptor : public InterceptorBase {
- public:
-  // A context object provided to the ThreadLocalState constructor. Provides
-  // access to the per-instance interceptor object.
-  class ThreadLocalStateArgs {
-   public:
-    ~ThreadLocalStateArgs() = default;
-
-    // Return a locked reference to the interceptor session. The session object
-    // will remain valid as long as the returned handle is in scope.
-    LockedHandle<InterceptorType> GetInterceptorLocked() {
-      auto* internal_state = static_state_->TryGet(data_source_instance_index_);
-      if (!internal_state)
-        return LockedHandle<InterceptorType>();
-      return LockedHandle<InterceptorType>(
-          &internal_state->lock,
-          static_cast<InterceptorType*>(internal_state->interceptor.get()));
-    }
-
-   private:
-    friend class Interceptor<InterceptorType>;
-    friend class InterceptorContext;
-    friend class TracingMuxerImpl;
-
-    ThreadLocalStateArgs(internal::DataSourceStaticState* static_state,
-                         uint32_t data_source_instance_index)
-        : static_state_(static_state),
-          data_source_instance_index_(data_source_instance_index) {}
-
-    internal::DataSourceStaticState* const static_state_;
-    const uint32_t data_source_instance_index_;
-  };
-
-  // A context object provided to each call into |OnTracePacket|. Contains the
-  // intercepted serialized trace packet data.
-  class InterceptorContext {
-   public:
-    InterceptorContext(InterceptorContext&&) noexcept = default;
-    ~InterceptorContext() = default;
-
-    // Return a locked reference to the interceptor session. The session object
-    // will remain valid as long as the returned handle is in scope.
-    LockedHandle<InterceptorType> GetInterceptorLocked() {
-      return tls_args_.GetInterceptorLocked();
-    }
-
-    // Return the thread-local state for this interceptor. See
-    // InterceptorBase::ThreadLocalState.
-    typename InterceptorType::ThreadLocalState& GetThreadLocalState() {
-      return static_cast<typename InterceptorType::ThreadLocalState&>(*tls_);
-    }
-
-    // A buffer containing the serialized TracePacket protocol buffer message.
-    // This memory is only valid during the call to OnTracePacket.
-    protozero::ConstBytes packet_data;
-
-   private:
-    friend class Interceptor<InterceptorType>;
-    InterceptorContext(TracePacketCallbackArgs args)
-        : packet_data(args.packet_data),
-          tls_args_(args.static_state, args.instance_index),
-          tls_(args.tls) {}
-    InterceptorContext(const InterceptorContext&) = delete;
-    InterceptorContext& operator=(const InterceptorContext&) = delete;
-
-    ThreadLocalStateArgs tls_args_;
-    InterceptorBase::ThreadLocalState* const tls_;
-  };
-
-  // Register the interceptor for use in tracing sessions.
-  // The optional |constructor_args| will be passed to the interceptor when it
-  // is constructed.
-  template <class... Args>
-  static void Register(const InterceptorDescriptor& descriptor,
-                       const Args&... constructor_args) {
-    auto factory = [constructor_args...]() {
-      return std::unique_ptr<InterceptorBase>(
-          new InterceptorType(constructor_args...));
-    };
-    auto tls_factory = [](internal::DataSourceStaticState* static_state,
-                          uint32_t data_source_instance_index) {
-      // Don't bother allocating TLS state unless the interceptor is actually
-      // using it.
-      if (std::is_same<typename InterceptorType::ThreadLocalState,
-                       InterceptorBase::ThreadLocalState>::value) {
-        return std::unique_ptr<InterceptorBase::ThreadLocalState>(nullptr);
-      }
-      ThreadLocalStateArgs args(static_state, data_source_instance_index);
-      return std::unique_ptr<InterceptorBase::ThreadLocalState>(
-          new typename InterceptorType::ThreadLocalState(args));
-    };
-    auto on_trace_packet = [](TracePacketCallbackArgs args) {
-      InterceptorType::OnTracePacket(InterceptorContext(std::move(args)));
-    };
-    RegisterImpl(descriptor, std::move(factory), std::move(tls_factory),
-                 std::move(on_trace_packet));
-  }
-};
-
-}  // namespace perfetto
-
-#endif  // INCLUDE_PERFETTO_TRACING_INTERCEPTOR_H_
-// gen_amalgamated begin header: include/perfetto/tracing/track_event_state_tracker.h
-// gen_amalgamated begin header: gen/protos/perfetto/trace/track_event/track_event.pbzero.h
-// gen_amalgamated begin header: include/perfetto/protozero/field_writer.h
-/*
- * Copyright (C) 2021 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-// gen_amalgamated expanded: #include "perfetto/protozero/message.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/proto_utils.h"
-
-#ifndef INCLUDE_PERFETTO_PROTOZERO_FIELD_WRITER_H_
-#define INCLUDE_PERFETTO_PROTOZERO_FIELD_WRITER_H_
-
-namespace protozero {
-namespace internal {
-
-template <proto_utils::ProtoSchemaType proto_schema_type>
-struct FieldWriter {
-  static_assert(proto_schema_type != proto_utils::ProtoSchemaType::kMessage,
-                "FieldWriter can't be used with nested messages");
-};
-
-template <>
-struct FieldWriter<proto_utils::ProtoSchemaType::kDouble> {
-  inline static void Append(Message& message, uint32_t field_id, double value) {
-    message.AppendFixed(field_id, value);
-  }
-};
-
-template <>
-struct FieldWriter<proto_utils::ProtoSchemaType::kFloat> {
-  inline static void Append(Message& message, uint32_t field_id, float value) {
-    message.AppendFixed(field_id, value);
-  }
-};
-
-template <>
-struct FieldWriter<proto_utils::ProtoSchemaType::kBool> {
-  inline static void Append(Message& message, uint32_t field_id, bool value) {
-    message.AppendTinyVarInt(field_id, value);
-  }
-};
-
-template <>
-struct FieldWriter<proto_utils::ProtoSchemaType::kInt32> {
-  inline static void Append(Message& message,
-                            uint32_t field_id,
-                            int32_t value) {
-    message.AppendVarInt(field_id, value);
-  }
-};
-
-template <>
-struct FieldWriter<proto_utils::ProtoSchemaType::kInt64> {
-  inline static void Append(Message& message,
-                            uint32_t field_id,
-                            int64_t value) {
-    message.AppendVarInt(field_id, value);
-  }
-};
-
-template <>
-struct FieldWriter<proto_utils::ProtoSchemaType::kUint32> {
-  inline static void Append(Message& message,
-                            uint32_t field_id,
-                            uint32_t value) {
-    message.AppendVarInt(field_id, value);
-  }
-};
-
-template <>
-struct FieldWriter<proto_utils::ProtoSchemaType::kUint64> {
-  inline static void Append(Message& message,
-                            uint32_t field_id,
-                            uint64_t value) {
-    message.AppendVarInt(field_id, value);
-  }
-};
-
-template <>
-struct FieldWriter<proto_utils::ProtoSchemaType::kSint32> {
-  inline static void Append(Message& message,
-                            uint32_t field_id,
-                            int32_t value) {
-    message.AppendSignedVarInt(field_id, value);
-  }
-};
-
-template <>
-struct FieldWriter<proto_utils::ProtoSchemaType::kSint64> {
-  inline static void Append(Message& message,
-                            uint32_t field_id,
-                            int64_t value) {
-    message.AppendSignedVarInt(field_id, value);
-  }
-};
-
-template <>
-struct FieldWriter<proto_utils::ProtoSchemaType::kFixed32> {
-  inline static void Append(Message& message,
-                            uint32_t field_id,
-                            uint32_t value) {
-    message.AppendFixed(field_id, value);
-  }
-};
-
-template <>
-struct FieldWriter<proto_utils::ProtoSchemaType::kFixed64> {
-  inline static void Append(Message& message,
-                            uint32_t field_id,
-                            uint64_t value) {
-    message.AppendFixed(field_id, value);
-  }
-};
-
-template <>
-struct FieldWriter<proto_utils::ProtoSchemaType::kSfixed32> {
-  inline static void Append(Message& message,
-                            uint32_t field_id,
-                            int32_t value) {
-    message.AppendFixed(field_id, value);
-  }
-};
-
-template <>
-struct FieldWriter<proto_utils::ProtoSchemaType::kSfixed64> {
-  inline static void Append(Message& message,
-                            uint32_t field_id,
-                            int64_t value) {
-    message.AppendFixed(field_id, value);
-  }
-};
-
-template <>
-struct FieldWriter<proto_utils::ProtoSchemaType::kEnum> {
-  template <typename EnumType>
-  inline static void Append(Message& message,
-                            uint32_t field_id,
-                            EnumType value) {
-    message.AppendVarInt(field_id, value);
-  }
-};
-
-template <>
-struct FieldWriter<proto_utils::ProtoSchemaType::kString> {
-  inline static void Append(Message& message,
-                            uint32_t field_id,
-                            const char* data,
-                            size_t size) {
-    message.AppendBytes(field_id, data, size);
-  }
-
-  inline static void Append(Message& message,
-                            uint32_t field_id,
-                            const std::string& value) {
-    message.AppendBytes(field_id, value.data(), value.size());
-  }
-};
-
-template <>
-struct FieldWriter<proto_utils::ProtoSchemaType::kBytes> {
-  inline static void Append(Message& message,
-                            uint32_t field_id,
-                            const uint8_t* data,
-                            size_t size) {
-    message.AppendBytes(field_id, data, size);
-  }
-
-  inline static void Append(Message& message,
-                            uint32_t field_id,
-                            const std::string& value) {
-    message.AppendBytes(field_id, value.data(), value.size());
-  }
-};
-
-}  // namespace internal
-}  // namespace protozero
-
-#endif  // INCLUDE_PERFETTO_PROTOZERO_FIELD_WRITER_H_
-// gen_amalgamated begin header: include/perfetto/protozero/packed_repeated_fields.h
-/*
- * Copyright (C) 2019 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef INCLUDE_PERFETTO_PROTOZERO_PACKED_REPEATED_FIELDS_H_
-#define INCLUDE_PERFETTO_PROTOZERO_PACKED_REPEATED_FIELDS_H_
-
-#include <stdint.h>
-
-#include <array>
-#include <memory>
-#include <type_traits>
-
-// gen_amalgamated expanded: #include "perfetto/base/logging.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/proto_utils.h"
-
-namespace protozero {
-
-// This file contains classes used when encoding packed repeated fields.
-// To encode such a field, the caller is first expected to accumulate all of the
-// values in one of the following types (depending on the wire type of the
-// individual elements), defined below:
-// * protozero::PackedVarInt
-// * protozero::PackedFixedSizeInt</*element_type=*/ uint32_t>
-// Then that buffer is passed to the protozero-generated setters as an argument.
-// After calling the setter, the buffer can be destroyed.
-//
-// An example of encoding a packed field:
-//   protozero::HeapBuffered<protozero::Message> msg;
-//   protozero::PackedVarInt buf;
-//   buf.Append(42);
-//   buf.Append(-1);
-//   msg->set_fieldname(buf);
-//   msg.SerializeAsString();
-
-class PackedBufferBase {
- public:
-  PackedBufferBase() { Reset(); }
-
-  // Copy or move is disabled due to pointers to stack addresses.
-  PackedBufferBase(const PackedBufferBase&) = delete;
-  PackedBufferBase(PackedBufferBase&&) = delete;
-  PackedBufferBase& operator=(const PackedBufferBase&) = delete;
-  PackedBufferBase& operator=(PackedBufferBase&&) = delete;
-
-  void Reset();
-
-  const uint8_t* data() const { return storage_begin_; }
-
-  size_t size() const {
-    return static_cast<size_t>(write_ptr_ - storage_begin_);
-  }
-
- protected:
-  void GrowIfNeeded() {
-    PERFETTO_DCHECK(write_ptr_ >= storage_begin_ && write_ptr_ <= storage_end_);
-    if (PERFETTO_UNLIKELY(write_ptr_ + kMaxElementSize > storage_end_)) {
-      GrowSlowpath();
-    }
-  }
-
-  void GrowSlowpath();
-
-  // max(uint64_t varint encoding, biggest fixed type (uint64)).
-  static constexpr size_t kMaxElementSize = 10;
-
-  // So sizeof(this) == 8k.
-  static constexpr size_t kOnStackStorageSize = 8192 - 32;
-
-  uint8_t* storage_begin_;
-  uint8_t* storage_end_;
-  uint8_t* write_ptr_;
-  std::unique_ptr<uint8_t[]> heap_buf_;
-  alignas(uint64_t) uint8_t stack_buf_[kOnStackStorageSize];
-};
-
-class PackedVarInt : public PackedBufferBase {
- public:
-  template <typename T>
-  void Append(T value) {
-    GrowIfNeeded();
-    write_ptr_ = proto_utils::WriteVarInt(value, write_ptr_);
-  }
-};
-
-template <typename T /* e.g. uint32_t for Fixed32 */>
-class PackedFixedSizeInt : public PackedBufferBase {
- public:
-  void Append(T value) {
-    static_assert(sizeof(T) == 4 || sizeof(T) == 8,
-                  "PackedFixedSizeInt should be used only with 32/64-bit ints");
-    static_assert(sizeof(T) <= kMaxElementSize,
-                  "kMaxElementSize needs to be updated");
-    GrowIfNeeded();
-    PERFETTO_DCHECK(reinterpret_cast<size_t>(write_ptr_) % alignof(T) == 0);
-    memcpy(reinterpret_cast<T*>(write_ptr_), &value, sizeof(T));
-    write_ptr_ += sizeof(T);
-  }
-};
-
-}  // namespace protozero
-
-#endif  // INCLUDE_PERFETTO_PROTOZERO_PACKED_REPEATED_FIELDS_H_
-// gen_amalgamated begin header: include/perfetto/protozero/proto_decoder.h
-/*
- * Copyright (C) 2018 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef INCLUDE_PERFETTO_PROTOZERO_PROTO_DECODER_H_
-#define INCLUDE_PERFETTO_PROTOZERO_PROTO_DECODER_H_
-
-#include <stdint.h>
-#include <array>
-#include <memory>
-#include <vector>
-
-// gen_amalgamated expanded: #include "perfetto/base/compiler.h"
-// gen_amalgamated expanded: #include "perfetto/base/logging.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/field.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/proto_utils.h"
-
-namespace protozero {
-
-// A generic protobuf decoder. Doesn't require any knowledge about the proto
-// schema. It tokenizes fields, retrieves their ID and type and exposes
-// accessors to retrieve its values.
-// It does NOT recurse in nested submessages, instead it just computes their
-// boundaries, recursion is left to the caller.
-// This class is designed to be used in perf-sensitive contexts. It does not
-// allocate and does not perform any proto semantic checks (e.g. repeated /
-// required / optional). It's supposedly safe wrt out-of-bounds memory accesses
-// (see proto_decoder_fuzzer.cc).
-// This class serves also as a building block for TypedProtoDecoder, used when
-// the schema is known at compile time.
-class PERFETTO_EXPORT ProtoDecoder {
- public:
-  // Creates a ProtoDecoder using the given |buffer| with size |length| bytes.
-  ProtoDecoder(const void* buffer, size_t length)
-      : begin_(reinterpret_cast<const uint8_t*>(buffer)),
-        end_(begin_ + length),
-        read_ptr_(begin_) {}
-  ProtoDecoder(const std::string& str) : ProtoDecoder(str.data(), str.size()) {}
-  ProtoDecoder(const ConstBytes& cb) : ProtoDecoder(cb.data, cb.size) {}
-
-  // Reads the next field from the buffer and advances the read cursor. If a
-  // full field cannot be read, the returned Field will be invalid (i.e.
-  // field.valid() == false).
-  Field ReadField();
-
-  // Finds the first field with the given id. Doesn't affect the read cursor.
-  Field FindField(uint32_t field_id);
-
-  // Resets the read cursor to the start of the buffer.
-  void Reset() { read_ptr_ = begin_; }
-
-  // Resets the read cursor to the given position (must be within the buffer).
-  void Reset(const uint8_t* pos) {
-    PERFETTO_DCHECK(pos >= begin_ && pos < end_);
-    read_ptr_ = pos;
-  }
-
-  // Returns the position of read cursor, relative to the start of the buffer.
-  size_t read_offset() const { return static_cast<size_t>(read_ptr_ - begin_); }
-
-  size_t bytes_left() const {
-    PERFETTO_DCHECK(read_ptr_ <= end_);
-    return static_cast<size_t>(end_ - read_ptr_);
-  }
-
-  const uint8_t* begin() const { return begin_; }
-  const uint8_t* end() const { return end_; }
-
- protected:
-  const uint8_t* const begin_;
-  const uint8_t* const end_;
-  const uint8_t* read_ptr_ = nullptr;
-};
-
-// An iterator-like class used to iterate through repeated fields. Used by
-// TypedProtoDecoder. The iteration sequence is a bit counter-intuitive due to
-// the fact that fields_[field_id] holds the *last* value of the field, not the
-// first, but the remaining storage holds repeated fields in FIFO order.
-// Assume that we push the 10,11,12 into a repeated field with ID=1.
-//
-// Decoder memory layout:  [  fields storage  ] [ repeated fields storage ]
-// 1st iteration:           10
-// 2nd iteration:           11                   10
-// 3rd iteration:           12                   10 11
-//
-// We start the iteration @ fields_[num_fields], which is the start of the
-// repeated fields storage, proceed until the end and lastly jump @ fields_[id].
-template <typename T>
-class RepeatedFieldIterator {
- public:
-  RepeatedFieldIterator(uint32_t field_id,
-                        const Field* begin,
-                        const Field* end,
-                        const Field* last)
-      : field_id_(field_id), iter_(begin), end_(end), last_(last) {
-    FindNextMatchingId();
-  }
-
-  // Constructs an invalid iterator.
-  RepeatedFieldIterator()
-      : field_id_(0u), iter_(nullptr), end_(nullptr), last_(nullptr) {}
-
-  explicit operator bool() const { return iter_ != end_; }
-  const Field& field() const { return *iter_; }
-
-  T operator*() const {
-    T val{};
-    iter_->get(&val);
-    return val;
-  }
-  const Field* operator->() const { return iter_; }
-
-  RepeatedFieldIterator& operator++() {
-    PERFETTO_DCHECK(iter_ != end_);
-    if (iter_ == last_) {
-      iter_ = end_;
-      return *this;
-    }
-    ++iter_;
-    FindNextMatchingId();
-    return *this;
-  }
-
-  RepeatedFieldIterator operator++(int) {
-    PERFETTO_DCHECK(iter_ != end_);
-    RepeatedFieldIterator it(*this);
-    ++(*this);
-    return it;
-  }
-
- private:
-  void FindNextMatchingId() {
-    PERFETTO_DCHECK(iter_ != last_);
-    for (; iter_ != end_; ++iter_) {
-      if (iter_->id() == field_id_)
-        return;
-    }
-    iter_ = last_->valid() ? last_ : end_;
-  }
-
-  uint32_t field_id_;
-
-  // Initially points to the beginning of the repeated field storage, then is
-  // incremented as we call operator++().
-  const Field* iter_;
-
-  // Always points to fields_[size_], i.e. past the end of the storage.
-  const Field* end_;
-
-  // Always points to fields_[field_id].
-  const Field* last_;
-};
-
-// As RepeatedFieldIterator, but allows iterating over a packed repeated field
-// (which will be initially stored as a single length-delimited field).
-// See |GetPackedRepeatedField| for details.
-//
-// Assumes little endianness, and that the input buffers are well formed -
-// containing an exact multiple of encoded elements.
-template <proto_utils::ProtoWireType wire_type, typename CppType>
-class PackedRepeatedFieldIterator {
- public:
-  PackedRepeatedFieldIterator(const uint8_t* data_begin,
-                              size_t size,
-                              bool* parse_error_ptr)
-      : data_end_(data_begin ? data_begin + size : nullptr),
-        read_ptr_(data_begin),
-        parse_error_(parse_error_ptr) {
-    using proto_utils::ProtoWireType;
-    static_assert(wire_type == ProtoWireType::kVarInt ||
-                      wire_type == ProtoWireType::kFixed32 ||
-                      wire_type == ProtoWireType::kFixed64,
-                  "invalid type");
-
-    PERFETTO_DCHECK(parse_error_ptr);
-
-    // Either the field is unset (and there are no data pointer), or the field
-    // is set with a zero length payload. Mark the iterator as invalid in both
-    // cases.
-    if (size == 0) {
-      curr_value_valid_ = false;
-      return;
-    }
-
-    if ((wire_type == ProtoWireType::kFixed32 && (size % 4) != 0) ||
-        (wire_type == ProtoWireType::kFixed64 && (size % 8) != 0)) {
-      *parse_error_ = true;
-      curr_value_valid_ = false;
-      return;
-    }
-
-    ++(*this);
-  }
-
-  const CppType operator*() const { return curr_value_; }
-  explicit operator bool() const { return curr_value_valid_; }
-
-  PackedRepeatedFieldIterator& operator++() {
-    using proto_utils::ProtoWireType;
-
-    if (PERFETTO_UNLIKELY(!curr_value_valid_))
-      return *this;
-
-    if (PERFETTO_UNLIKELY(read_ptr_ == data_end_)) {
-      curr_value_valid_ = false;
-      return *this;
-    }
-
-    if (wire_type == ProtoWireType::kVarInt) {
-      uint64_t new_value = 0;
-      const uint8_t* new_pos =
-          proto_utils::ParseVarInt(read_ptr_, data_end_, &new_value);
-
-      if (PERFETTO_UNLIKELY(new_pos == read_ptr_)) {
-        // Failed to decode the varint (probably incomplete buffer).
-        *parse_error_ = true;
-        curr_value_valid_ = false;
-      } else {
-        read_ptr_ = new_pos;
-        curr_value_ = static_cast<CppType>(new_value);
-      }
-    } else {  // kFixed32 or kFixed64
-      constexpr size_t kStep = wire_type == ProtoWireType::kFixed32 ? 4 : 8;
-
-      // NB: the raw buffer is not guaranteed to be aligned, so neither are
-      // these copies.
-      memcpy(&curr_value_, read_ptr_, sizeof(CppType));
-      read_ptr_ += kStep;
-    }
-
-    return *this;
-  }
-
-  PackedRepeatedFieldIterator operator++(int) {
-    PackedRepeatedFieldIterator it(*this);
-    ++(*this);
-    return it;
-  }
-
- private:
-  // Might be null if the backing proto field isn't set.
-  const uint8_t* const data_end_;
-
-  // The iterator looks ahead by an element, so |curr_value| holds the value
-  // to be returned when the caller dereferences the iterator, and |read_ptr_|
-  // points at the start of the next element to be decoded.
-  // |read_ptr_| might be null if the backing proto field isn't set.
-  const uint8_t* read_ptr_;
-  CppType curr_value_ = 0;
-
-  // Set to false once we've exhausted the iterator, or encountered an error.
-  bool curr_value_valid_ = true;
-
-  // Where to set parsing errors, supplied by the caller.
-  bool* const parse_error_;
-};
-
-// This decoder loads all fields upfront, without recursing in nested messages.
-// It is used as a base class for typed decoders generated by the pbzero plugin.
-// The split between TypedProtoDecoderBase and TypedProtoDecoder<> is to have
-// unique definition of functions like ParseAllFields() and ExpandHeapStorage().
-// The storage (either on-stack or on-heap) for this class is organized as
-// follows:
-// |-------------------------- fields_ ----------------------|
-// [ field 0 (invalid) ] [ fields 1 .. N ] [ repeated fields ]
-//                                        ^                  ^
-//                                        num_fields_        size_
-class PERFETTO_EXPORT TypedProtoDecoderBase : public ProtoDecoder {
- public:
-  // If the field |id| is known at compile time, prefer the templated
-  // specialization at<kFieldNumber>().
-  const Field& Get(uint32_t id) const {
-    return PERFETTO_LIKELY(id < num_fields_) ? fields_[id] : fields_[0];
-  }
-
-  // Returns an object that allows to iterate over all instances of a repeated
-  // field given its id. Example usage:
-  //   for (auto it = decoder.GetRepeated<int32_t>(N); it; ++it) { ... }
-  template <typename T>
-  RepeatedFieldIterator<T> GetRepeated(uint32_t field_id) const {
-    return RepeatedFieldIterator<T>(field_id, &fields_[num_fields_],
-                                    &fields_[size_], &fields_[field_id]);
-  }
-
-  // Returns an objects that allows to iterate over all entries of a packed
-  // repeated field given its id and type. The |wire_type| is necessary for
-  // decoding the packed field, the |cpp_type| is for convenience & stronger
-  // typing.
-  //
-  // The caller must also supply a pointer to a bool that is set to true if the
-  // packed buffer is found to be malformed while iterating (so you need to
-  // exhaust the iterator if you want to check the full extent of the buffer).
-  //
-  // Note that unlike standard protobuf parsers, protozero does not allow
-  // treating of packed repeated fields as non-packed and vice-versa (therefore
-  // not making the packed option forwards and backwards compatible). So
-  // the caller needs to use the right accessor for correct results.
-  template <proto_utils::ProtoWireType wire_type, typename cpp_type>
-  PackedRepeatedFieldIterator<wire_type, cpp_type> GetPackedRepeated(
-      uint32_t field_id,
-      bool* parse_error_location) const {
-    const Field& field = Get(field_id);
-    if (field.valid()) {
-      return PackedRepeatedFieldIterator<wire_type, cpp_type>(
-          field.data(), field.size(), parse_error_location);
-    } else {
-      return PackedRepeatedFieldIterator<wire_type, cpp_type>(
-          nullptr, 0, parse_error_location);
-    }
-  }
-
- protected:
-  TypedProtoDecoderBase(Field* storage,
-                        uint32_t num_fields,
-                        uint32_t capacity,
-                        const uint8_t* buffer,
-                        size_t length)
-      : ProtoDecoder(buffer, length),
-        fields_(storage),
-        num_fields_(num_fields),
-        size_(num_fields),
-        capacity_(capacity) {
-    // The reason why Field needs to be trivially de/constructible is to avoid
-    // implicit initializers on all the ~1000 entries. We need it to initialize
-    // only on the first |max_field_id| fields, the remaining capacity doesn't
-    // require initialization.
-    static_assert(std::is_trivially_constructible<Field>::value &&
-                      std::is_trivially_destructible<Field>::value &&
-                      std::is_trivial<Field>::value,
-                  "Field must be a trivial aggregate type");
-    memset(fields_, 0, sizeof(Field) * num_fields_);
-  }
-
-  void ParseAllFields();
-
-  // Called when the default on-stack storage is exhausted and new repeated
-  // fields need to be pushed.
-  void ExpandHeapStorage();
-
-  // Used only in presence of a large number of repeated fields, when the
-  // default on-stack storage is exhausted.
-  std::unique_ptr<Field[]> heap_storage_;
-
-  // Points to the storage, either on-stack (default, provided by the template
-  // specialization) or |heap_storage_| after ExpandHeapStorage() is called, in
-  // case of a large number of repeated fields.
-  Field* fields_;
-
-  // Number of fields without accounting repeated storage. This is equal to
-  // MAX_FIELD_ID + 1 (to account for the invalid 0th field).
-  // This value is always <= size_ (and hence <= capacity);
-  uint32_t num_fields_;
-
-  // Number of active |fields_| entries. This is initially equal to the highest
-  // number of fields for the message (num_fields_ == MAX_FIELD_ID + 1) and can
-  // grow up to |capacity_| in the case of repeated fields.
-  uint32_t size_;
-
-  // Initially equal to kFieldsCapacity of the TypedProtoDecoder
-  // specialization. Can grow when falling back on heap-based storage, in which
-  // case it represents the size (#fields with each entry of a repeated field
-  // counted individually) of the |heap_storage_| array.
-  uint32_t capacity_;
-};
-
-// Template class instantiated by the auto-generated decoder classes declared in
-// xxx.pbzero.h files.
-template <int MAX_FIELD_ID, bool HAS_NONPACKED_REPEATED_FIELDS>
-class TypedProtoDecoder : public TypedProtoDecoderBase {
- public:
-  TypedProtoDecoder(const uint8_t* buffer, size_t length)
-      : TypedProtoDecoderBase(on_stack_storage_,
-                              /*num_fields=*/MAX_FIELD_ID + 1,
-                              kCapacity,
-                              buffer,
-                              length) {
-    static_assert(MAX_FIELD_ID <= kMaxDecoderFieldId, "Field ordinal too high");
-    TypedProtoDecoderBase::ParseAllFields();
-  }
-
-  template <uint32_t FIELD_ID>
-  const Field& at() const {
-    static_assert(FIELD_ID <= MAX_FIELD_ID, "FIELD_ID > MAX_FIELD_ID");
-    return fields_[FIELD_ID];
-  }
-
-  TypedProtoDecoder(TypedProtoDecoder&& other) noexcept
-      : TypedProtoDecoderBase(std::move(other)) {
-    // If the moved-from decoder was using on-stack storage, we need to update
-    // our pointer to point to this decoder's on-stack storage.
-    if (fields_ == other.on_stack_storage_) {
-      fields_ = on_stack_storage_;
-      memcpy(on_stack_storage_, other.on_stack_storage_,
-             sizeof(on_stack_storage_));
-    }
-  }
-
- private:
-  // In the case of non-repeated fields, this constant defines the highest field
-  // id we are able to decode. This is to limit the on-stack storage.
-  // In the case of repeated fields, this constant defines the max number of
-  // repeated fields that we'll be able to store before falling back on the
-  // heap. Keep this value in sync with the one in protozero_generator.cc.
-  static constexpr size_t kMaxDecoderFieldId = 999;
-
-  // If we the message has no repeated fields we need at most N Field entries
-  // in the on-stack storage, where N is the highest field id.
-  // Otherwise we need some room to store repeated fields.
-  static constexpr size_t kCapacity =
-      1 + (HAS_NONPACKED_REPEATED_FIELDS ? kMaxDecoderFieldId : MAX_FIELD_ID);
-
-  Field on_stack_storage_[kCapacity];
-};
-
-}  // namespace protozero
-
-#endif  // INCLUDE_PERFETTO_PROTOZERO_PROTO_DECODER_H_
-// Autogenerated by the ProtoZero compiler plugin. DO NOT EDIT.
-
-#ifndef PERFETTO_PROTOS_PROTOS_PERFETTO_TRACE_TRACK_EVENT_TRACK_EVENT_PROTO_H_
-#define PERFETTO_PROTOS_PROTOS_PERFETTO_TRACE_TRACK_EVENT_TRACK_EVENT_PROTO_H_
-
-#include <stddef.h>
-#include <stdint.h>
-
-// gen_amalgamated expanded: #include "perfetto/protozero/field_writer.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/message.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/packed_repeated_fields.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/proto_decoder.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/proto_utils.h"
-
-namespace perfetto {
-namespace protos {
-namespace pbzero {
-
-class ChromeApplicationStateInfo;
-class ChromeCompositorSchedulerState;
-class ChromeContentSettingsEventInfo;
-class ChromeFrameReporter;
-class ChromeHistogramSample;
-class ChromeKeyedService;
-class ChromeLatencyInfo;
-class ChromeLegacyIpc;
-class ChromeMessagePump;
-class ChromeMojoEventInfo;
-class ChromeRendererSchedulerState;
-class ChromeUserEvent;
-class ChromeWindowHandleEventInfo;
-class DebugAnnotation;
-class LogMessage;
-class SourceLocation;
-class TaskExecution;
-class TrackEvent_LegacyEvent;
-enum TrackEvent_LegacyEvent_FlowDirection : int32_t;
-enum TrackEvent_LegacyEvent_InstantEventScope : int32_t;
-enum TrackEvent_Type : int32_t;
-
-enum TrackEvent_Type : int32_t {
-  TrackEvent_Type_TYPE_UNSPECIFIED = 0,
-  TrackEvent_Type_TYPE_SLICE_BEGIN = 1,
-  TrackEvent_Type_TYPE_SLICE_END = 2,
-  TrackEvent_Type_TYPE_INSTANT = 3,
-  TrackEvent_Type_TYPE_COUNTER = 4,
-};
-
-const TrackEvent_Type TrackEvent_Type_MIN = TrackEvent_Type_TYPE_UNSPECIFIED;
-const TrackEvent_Type TrackEvent_Type_MAX = TrackEvent_Type_TYPE_COUNTER;
-
-enum TrackEvent_LegacyEvent_FlowDirection : int32_t {
-  TrackEvent_LegacyEvent_FlowDirection_FLOW_UNSPECIFIED = 0,
-  TrackEvent_LegacyEvent_FlowDirection_FLOW_IN = 1,
-  TrackEvent_LegacyEvent_FlowDirection_FLOW_OUT = 2,
-  TrackEvent_LegacyEvent_FlowDirection_FLOW_INOUT = 3,
-};
-
-const TrackEvent_LegacyEvent_FlowDirection TrackEvent_LegacyEvent_FlowDirection_MIN = TrackEvent_LegacyEvent_FlowDirection_FLOW_UNSPECIFIED;
-const TrackEvent_LegacyEvent_FlowDirection TrackEvent_LegacyEvent_FlowDirection_MAX = TrackEvent_LegacyEvent_FlowDirection_FLOW_INOUT;
-
-enum TrackEvent_LegacyEvent_InstantEventScope : int32_t {
-  TrackEvent_LegacyEvent_InstantEventScope_SCOPE_UNSPECIFIED = 0,
-  TrackEvent_LegacyEvent_InstantEventScope_SCOPE_GLOBAL = 1,
-  TrackEvent_LegacyEvent_InstantEventScope_SCOPE_PROCESS = 2,
-  TrackEvent_LegacyEvent_InstantEventScope_SCOPE_THREAD = 3,
-};
-
-const TrackEvent_LegacyEvent_InstantEventScope TrackEvent_LegacyEvent_InstantEventScope_MIN = TrackEvent_LegacyEvent_InstantEventScope_SCOPE_UNSPECIFIED;
-const TrackEvent_LegacyEvent_InstantEventScope TrackEvent_LegacyEvent_InstantEventScope_MAX = TrackEvent_LegacyEvent_InstantEventScope_SCOPE_THREAD;
-
-class EventName_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/2, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  EventName_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit EventName_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit EventName_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_iid() const { return at<1>().valid(); }
-  uint64_t iid() const { return at<1>().as_uint64(); }
-  bool has_name() const { return at<2>().valid(); }
-  ::protozero::ConstChars name() const { return at<2>().as_string(); }
-};
-
-class EventName : public ::protozero::Message {
- public:
-  using Decoder = EventName_Decoder;
-  enum : int32_t {
-    kIidFieldNumber = 1,
-    kNameFieldNumber = 2,
-  };
-
-  using FieldMetadata_Iid =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      EventName>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Iid kIid() { return {}; }
-  void set_iid(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Iid::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Name =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kString,
-      std::string,
-      EventName>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Name kName() { return {}; }
-  void set_name(const char* data, size_t size) {
-    AppendBytes(FieldMetadata_Name::kFieldId, data, size);
-  }
-  void set_name(std::string value) {
-    static constexpr uint32_t field_id = FieldMetadata_Name::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kString>
-        ::Append(*this, field_id, value);
-  }
-};
-
-class EventCategory_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/2, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  EventCategory_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit EventCategory_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit EventCategory_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_iid() const { return at<1>().valid(); }
-  uint64_t iid() const { return at<1>().as_uint64(); }
-  bool has_name() const { return at<2>().valid(); }
-  ::protozero::ConstChars name() const { return at<2>().as_string(); }
-};
-
-class EventCategory : public ::protozero::Message {
- public:
-  using Decoder = EventCategory_Decoder;
-  enum : int32_t {
-    kIidFieldNumber = 1,
-    kNameFieldNumber = 2,
-  };
-
-  using FieldMetadata_Iid =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      EventCategory>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Iid kIid() { return {}; }
-  void set_iid(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Iid::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Name =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kString,
-      std::string,
-      EventCategory>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Name kName() { return {}; }
-  void set_name(const char* data, size_t size) {
-    AppendBytes(FieldMetadata_Name::kFieldId, data, size);
-  }
-  void set_name(std::string value) {
-    static constexpr uint32_t field_id = FieldMetadata_Name::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kString>
-        ::Append(*this, field_id, value);
-  }
-};
-
-class TrackEventDefaults_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/45, /*HAS_NONPACKED_REPEATED_FIELDS=*/true> {
- public:
-  TrackEventDefaults_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit TrackEventDefaults_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit TrackEventDefaults_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_track_uuid() const { return at<11>().valid(); }
-  uint64_t track_uuid() const { return at<11>().as_uint64(); }
-  bool has_extra_counter_track_uuids() const { return at<31>().valid(); }
-  ::protozero::RepeatedFieldIterator<uint64_t> extra_counter_track_uuids() const { return GetRepeated<uint64_t>(31); }
-  bool has_extra_double_counter_track_uuids() const { return at<45>().valid(); }
-  ::protozero::RepeatedFieldIterator<uint64_t> extra_double_counter_track_uuids() const { return GetRepeated<uint64_t>(45); }
-};
-
-class TrackEventDefaults : public ::protozero::Message {
- public:
-  using Decoder = TrackEventDefaults_Decoder;
-  enum : int32_t {
-    kTrackUuidFieldNumber = 11,
-    kExtraCounterTrackUuidsFieldNumber = 31,
-    kExtraDoubleCounterTrackUuidsFieldNumber = 45,
-  };
-
-  using FieldMetadata_TrackUuid =
-    ::protozero::proto_utils::FieldMetadata<
-      11,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      TrackEventDefaults>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_TrackUuid kTrackUuid() { return {}; }
-  void set_track_uuid(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_TrackUuid::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_ExtraCounterTrackUuids =
-    ::protozero::proto_utils::FieldMetadata<
-      31,
-      ::protozero::proto_utils::RepetitionType::kRepeatedNotPacked,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      TrackEventDefaults>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_ExtraCounterTrackUuids kExtraCounterTrackUuids() { return {}; }
-  void add_extra_counter_track_uuids(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_ExtraCounterTrackUuids::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_ExtraDoubleCounterTrackUuids =
-    ::protozero::proto_utils::FieldMetadata<
-      45,
-      ::protozero::proto_utils::RepetitionType::kRepeatedNotPacked,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      TrackEventDefaults>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_ExtraDoubleCounterTrackUuids kExtraDoubleCounterTrackUuids() { return {}; }
-  void add_extra_double_counter_track_uuids(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_ExtraDoubleCounterTrackUuids::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-};
-
-class TrackEvent_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/46, /*HAS_NONPACKED_REPEATED_FIELDS=*/true> {
- public:
-  TrackEvent_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit TrackEvent_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit TrackEvent_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_category_iids() const { return at<3>().valid(); }
-  ::protozero::RepeatedFieldIterator<uint64_t> category_iids() const { return GetRepeated<uint64_t>(3); }
-  bool has_categories() const { return at<22>().valid(); }
-  ::protozero::RepeatedFieldIterator<::protozero::ConstChars> categories() const { return GetRepeated<::protozero::ConstChars>(22); }
-  bool has_name_iid() const { return at<10>().valid(); }
-  uint64_t name_iid() const { return at<10>().as_uint64(); }
-  bool has_name() const { return at<23>().valid(); }
-  ::protozero::ConstChars name() const { return at<23>().as_string(); }
-  bool has_type() const { return at<9>().valid(); }
-  int32_t type() const { return at<9>().as_int32(); }
-  bool has_track_uuid() const { return at<11>().valid(); }
-  uint64_t track_uuid() const { return at<11>().as_uint64(); }
-  bool has_counter_value() const { return at<30>().valid(); }
-  int64_t counter_value() const { return at<30>().as_int64(); }
-  bool has_double_counter_value() const { return at<44>().valid(); }
-  double double_counter_value() const { return at<44>().as_double(); }
-  bool has_extra_counter_track_uuids() const { return at<31>().valid(); }
-  ::protozero::RepeatedFieldIterator<uint64_t> extra_counter_track_uuids() const { return GetRepeated<uint64_t>(31); }
-  bool has_extra_counter_values() const { return at<12>().valid(); }
-  ::protozero::RepeatedFieldIterator<int64_t> extra_counter_values() const { return GetRepeated<int64_t>(12); }
-  bool has_extra_double_counter_track_uuids() const { return at<45>().valid(); }
-  ::protozero::RepeatedFieldIterator<uint64_t> extra_double_counter_track_uuids() const { return GetRepeated<uint64_t>(45); }
-  bool has_extra_double_counter_values() const { return at<46>().valid(); }
-  ::protozero::RepeatedFieldIterator<double> extra_double_counter_values() const { return GetRepeated<double>(46); }
-  bool has_flow_ids() const { return at<36>().valid(); }
-  ::protozero::RepeatedFieldIterator<uint64_t> flow_ids() const { return GetRepeated<uint64_t>(36); }
-  bool has_terminating_flow_ids() const { return at<42>().valid(); }
-  ::protozero::RepeatedFieldIterator<uint64_t> terminating_flow_ids() const { return GetRepeated<uint64_t>(42); }
-  bool has_debug_annotations() const { return at<4>().valid(); }
-  ::protozero::RepeatedFieldIterator<::protozero::ConstBytes> debug_annotations() const { return GetRepeated<::protozero::ConstBytes>(4); }
-  bool has_task_execution() const { return at<5>().valid(); }
-  ::protozero::ConstBytes task_execution() const { return at<5>().as_bytes(); }
-  bool has_log_message() const { return at<21>().valid(); }
-  ::protozero::ConstBytes log_message() const { return at<21>().as_bytes(); }
-  bool has_cc_scheduler_state() const { return at<24>().valid(); }
-  ::protozero::ConstBytes cc_scheduler_state() const { return at<24>().as_bytes(); }
-  bool has_chrome_user_event() const { return at<25>().valid(); }
-  ::protozero::ConstBytes chrome_user_event() const { return at<25>().as_bytes(); }
-  bool has_chrome_keyed_service() const { return at<26>().valid(); }
-  ::protozero::ConstBytes chrome_keyed_service() const { return at<26>().as_bytes(); }
-  bool has_chrome_legacy_ipc() const { return at<27>().valid(); }
-  ::protozero::ConstBytes chrome_legacy_ipc() const { return at<27>().as_bytes(); }
-  bool has_chrome_histogram_sample() const { return at<28>().valid(); }
-  ::protozero::ConstBytes chrome_histogram_sample() const { return at<28>().as_bytes(); }
-  bool has_chrome_latency_info() const { return at<29>().valid(); }
-  ::protozero::ConstBytes chrome_latency_info() const { return at<29>().as_bytes(); }
-  bool has_chrome_frame_reporter() const { return at<32>().valid(); }
-  ::protozero::ConstBytes chrome_frame_reporter() const { return at<32>().as_bytes(); }
-  bool has_chrome_application_state_info() const { return at<39>().valid(); }
-  ::protozero::ConstBytes chrome_application_state_info() const { return at<39>().as_bytes(); }
-  bool has_chrome_renderer_scheduler_state() const { return at<40>().valid(); }
-  ::protozero::ConstBytes chrome_renderer_scheduler_state() const { return at<40>().as_bytes(); }
-  bool has_chrome_window_handle_event_info() const { return at<41>().valid(); }
-  ::protozero::ConstBytes chrome_window_handle_event_info() const { return at<41>().as_bytes(); }
-  bool has_chrome_content_settings_event_info() const { return at<43>().valid(); }
-  ::protozero::ConstBytes chrome_content_settings_event_info() const { return at<43>().as_bytes(); }
-  bool has_source_location() const { return at<33>().valid(); }
-  ::protozero::ConstBytes source_location() const { return at<33>().as_bytes(); }
-  bool has_source_location_iid() const { return at<34>().valid(); }
-  uint64_t source_location_iid() const { return at<34>().as_uint64(); }
-  bool has_chrome_message_pump() const { return at<35>().valid(); }
-  ::protozero::ConstBytes chrome_message_pump() const { return at<35>().as_bytes(); }
-  bool has_chrome_mojo_event_info() const { return at<38>().valid(); }
-  ::protozero::ConstBytes chrome_mojo_event_info() const { return at<38>().as_bytes(); }
-  bool has_timestamp_delta_us() const { return at<1>().valid(); }
-  int64_t timestamp_delta_us() const { return at<1>().as_int64(); }
-  bool has_timestamp_absolute_us() const { return at<16>().valid(); }
-  int64_t timestamp_absolute_us() const { return at<16>().as_int64(); }
-  bool has_thread_time_delta_us() const { return at<2>().valid(); }
-  int64_t thread_time_delta_us() const { return at<2>().as_int64(); }
-  bool has_thread_time_absolute_us() const { return at<17>().valid(); }
-  int64_t thread_time_absolute_us() const { return at<17>().as_int64(); }
-  bool has_thread_instruction_count_delta() const { return at<8>().valid(); }
-  int64_t thread_instruction_count_delta() const { return at<8>().as_int64(); }
-  bool has_thread_instruction_count_absolute() const { return at<20>().valid(); }
-  int64_t thread_instruction_count_absolute() const { return at<20>().as_int64(); }
-  bool has_legacy_event() const { return at<6>().valid(); }
-  ::protozero::ConstBytes legacy_event() const { return at<6>().as_bytes(); }
-};
-
-class TrackEvent : public ::protozero::Message {
- public:
-  using Decoder = TrackEvent_Decoder;
-  enum : int32_t {
-    kCategoryIidsFieldNumber = 3,
-    kCategoriesFieldNumber = 22,
-    kNameIidFieldNumber = 10,
-    kNameFieldNumber = 23,
-    kTypeFieldNumber = 9,
-    kTrackUuidFieldNumber = 11,
-    kCounterValueFieldNumber = 30,
-    kDoubleCounterValueFieldNumber = 44,
-    kExtraCounterTrackUuidsFieldNumber = 31,
-    kExtraCounterValuesFieldNumber = 12,
-    kExtraDoubleCounterTrackUuidsFieldNumber = 45,
-    kExtraDoubleCounterValuesFieldNumber = 46,
-    kFlowIdsFieldNumber = 36,
-    kTerminatingFlowIdsFieldNumber = 42,
-    kDebugAnnotationsFieldNumber = 4,
-    kTaskExecutionFieldNumber = 5,
-    kLogMessageFieldNumber = 21,
-    kCcSchedulerStateFieldNumber = 24,
-    kChromeUserEventFieldNumber = 25,
-    kChromeKeyedServiceFieldNumber = 26,
-    kChromeLegacyIpcFieldNumber = 27,
-    kChromeHistogramSampleFieldNumber = 28,
-    kChromeLatencyInfoFieldNumber = 29,
-    kChromeFrameReporterFieldNumber = 32,
-    kChromeApplicationStateInfoFieldNumber = 39,
-    kChromeRendererSchedulerStateFieldNumber = 40,
-    kChromeWindowHandleEventInfoFieldNumber = 41,
-    kChromeContentSettingsEventInfoFieldNumber = 43,
-    kSourceLocationFieldNumber = 33,
-    kSourceLocationIidFieldNumber = 34,
-    kChromeMessagePumpFieldNumber = 35,
-    kChromeMojoEventInfoFieldNumber = 38,
-    kTimestampDeltaUsFieldNumber = 1,
-    kTimestampAbsoluteUsFieldNumber = 16,
-    kThreadTimeDeltaUsFieldNumber = 2,
-    kThreadTimeAbsoluteUsFieldNumber = 17,
-    kThreadInstructionCountDeltaFieldNumber = 8,
-    kThreadInstructionCountAbsoluteFieldNumber = 20,
-    kLegacyEventFieldNumber = 6,
-  };
-  using LegacyEvent = ::perfetto::protos::pbzero::TrackEvent_LegacyEvent;
-  using Type = ::perfetto::protos::pbzero::TrackEvent_Type;
-  static const Type TYPE_UNSPECIFIED = TrackEvent_Type_TYPE_UNSPECIFIED;
-  static const Type TYPE_SLICE_BEGIN = TrackEvent_Type_TYPE_SLICE_BEGIN;
-  static const Type TYPE_SLICE_END = TrackEvent_Type_TYPE_SLICE_END;
-  static const Type TYPE_INSTANT = TrackEvent_Type_TYPE_INSTANT;
-  static const Type TYPE_COUNTER = TrackEvent_Type_TYPE_COUNTER;
-
-  using FieldMetadata_CategoryIids =
-    ::protozero::proto_utils::FieldMetadata<
-      3,
-      ::protozero::proto_utils::RepetitionType::kRepeatedNotPacked,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      TrackEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_CategoryIids kCategoryIids() { return {}; }
-  void add_category_iids(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_CategoryIids::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Categories =
-    ::protozero::proto_utils::FieldMetadata<
-      22,
-      ::protozero::proto_utils::RepetitionType::kRepeatedNotPacked,
-      ::protozero::proto_utils::ProtoSchemaType::kString,
-      std::string,
-      TrackEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Categories kCategories() { return {}; }
-  void add_categories(const char* data, size_t size) {
-    AppendBytes(FieldMetadata_Categories::kFieldId, data, size);
-  }
-  void add_categories(std::string value) {
-    static constexpr uint32_t field_id = FieldMetadata_Categories::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kString>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_NameIid =
-    ::protozero::proto_utils::FieldMetadata<
-      10,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      TrackEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_NameIid kNameIid() { return {}; }
-  void set_name_iid(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_NameIid::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Name =
-    ::protozero::proto_utils::FieldMetadata<
-      23,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kString,
-      std::string,
-      TrackEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Name kName() { return {}; }
-  void set_name(const char* data, size_t size) {
-    AppendBytes(FieldMetadata_Name::kFieldId, data, size);
-  }
-  void set_name(std::string value) {
-    static constexpr uint32_t field_id = FieldMetadata_Name::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kString>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Type =
-    ::protozero::proto_utils::FieldMetadata<
-      9,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kEnum,
-      ::perfetto::protos::pbzero::TrackEvent_Type,
-      TrackEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Type kType() { return {}; }
-  void set_type(::perfetto::protos::pbzero::TrackEvent_Type value) {
-    static constexpr uint32_t field_id = FieldMetadata_Type::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kEnum>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_TrackUuid =
-    ::protozero::proto_utils::FieldMetadata<
-      11,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      TrackEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_TrackUuid kTrackUuid() { return {}; }
-  void set_track_uuid(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_TrackUuid::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_CounterValue =
-    ::protozero::proto_utils::FieldMetadata<
-      30,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt64,
-      int64_t,
-      TrackEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_CounterValue kCounterValue() { return {}; }
-  void set_counter_value(int64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_CounterValue::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_DoubleCounterValue =
-    ::protozero::proto_utils::FieldMetadata<
-      44,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kDouble,
-      double,
-      TrackEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_DoubleCounterValue kDoubleCounterValue() { return {}; }
-  void set_double_counter_value(double value) {
-    static constexpr uint32_t field_id = FieldMetadata_DoubleCounterValue::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kDouble>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_ExtraCounterTrackUuids =
-    ::protozero::proto_utils::FieldMetadata<
-      31,
-      ::protozero::proto_utils::RepetitionType::kRepeatedNotPacked,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      TrackEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_ExtraCounterTrackUuids kExtraCounterTrackUuids() { return {}; }
-  void add_extra_counter_track_uuids(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_ExtraCounterTrackUuids::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_ExtraCounterValues =
-    ::protozero::proto_utils::FieldMetadata<
-      12,
-      ::protozero::proto_utils::RepetitionType::kRepeatedNotPacked,
-      ::protozero::proto_utils::ProtoSchemaType::kInt64,
-      int64_t,
-      TrackEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_ExtraCounterValues kExtraCounterValues() { return {}; }
-  void add_extra_counter_values(int64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_ExtraCounterValues::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_ExtraDoubleCounterTrackUuids =
-    ::protozero::proto_utils::FieldMetadata<
-      45,
-      ::protozero::proto_utils::RepetitionType::kRepeatedNotPacked,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      TrackEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_ExtraDoubleCounterTrackUuids kExtraDoubleCounterTrackUuids() { return {}; }
-  void add_extra_double_counter_track_uuids(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_ExtraDoubleCounterTrackUuids::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_ExtraDoubleCounterValues =
-    ::protozero::proto_utils::FieldMetadata<
-      46,
-      ::protozero::proto_utils::RepetitionType::kRepeatedNotPacked,
-      ::protozero::proto_utils::ProtoSchemaType::kDouble,
-      double,
-      TrackEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_ExtraDoubleCounterValues kExtraDoubleCounterValues() { return {}; }
-  void add_extra_double_counter_values(double value) {
-    static constexpr uint32_t field_id = FieldMetadata_ExtraDoubleCounterValues::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kDouble>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_FlowIds =
-    ::protozero::proto_utils::FieldMetadata<
-      36,
-      ::protozero::proto_utils::RepetitionType::kRepeatedNotPacked,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      TrackEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_FlowIds kFlowIds() { return {}; }
-  void add_flow_ids(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_FlowIds::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_TerminatingFlowIds =
-    ::protozero::proto_utils::FieldMetadata<
-      42,
-      ::protozero::proto_utils::RepetitionType::kRepeatedNotPacked,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      TrackEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_TerminatingFlowIds kTerminatingFlowIds() { return {}; }
-  void add_terminating_flow_ids(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_TerminatingFlowIds::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_DebugAnnotations =
-    ::protozero::proto_utils::FieldMetadata<
-      4,
-      ::protozero::proto_utils::RepetitionType::kRepeatedNotPacked,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      DebugAnnotation,
-      TrackEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_DebugAnnotations kDebugAnnotations() { return {}; }
-  template <typename T = DebugAnnotation> T* add_debug_annotations() {
-    return BeginNestedMessage<T>(4);
-  }
-
-
-  using FieldMetadata_TaskExecution =
-    ::protozero::proto_utils::FieldMetadata<
-      5,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      TaskExecution,
-      TrackEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_TaskExecution kTaskExecution() { return {}; }
-  template <typename T = TaskExecution> T* set_task_execution() {
-    return BeginNestedMessage<T>(5);
-  }
-
-
-  using FieldMetadata_LogMessage =
-    ::protozero::proto_utils::FieldMetadata<
-      21,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      LogMessage,
-      TrackEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_LogMessage kLogMessage() { return {}; }
-  template <typename T = LogMessage> T* set_log_message() {
-    return BeginNestedMessage<T>(21);
-  }
-
-
-  using FieldMetadata_CcSchedulerState =
-    ::protozero::proto_utils::FieldMetadata<
-      24,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      ChromeCompositorSchedulerState,
-      TrackEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_CcSchedulerState kCcSchedulerState() { return {}; }
-  template <typename T = ChromeCompositorSchedulerState> T* set_cc_scheduler_state() {
-    return BeginNestedMessage<T>(24);
-  }
-
-
-  using FieldMetadata_ChromeUserEvent =
-    ::protozero::proto_utils::FieldMetadata<
-      25,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      ChromeUserEvent,
-      TrackEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_ChromeUserEvent kChromeUserEvent() { return {}; }
-  template <typename T = ChromeUserEvent> T* set_chrome_user_event() {
-    return BeginNestedMessage<T>(25);
-  }
-
-
-  using FieldMetadata_ChromeKeyedService =
-    ::protozero::proto_utils::FieldMetadata<
-      26,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      ChromeKeyedService,
-      TrackEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_ChromeKeyedService kChromeKeyedService() { return {}; }
-  template <typename T = ChromeKeyedService> T* set_chrome_keyed_service() {
-    return BeginNestedMessage<T>(26);
-  }
-
-
-  using FieldMetadata_ChromeLegacyIpc =
-    ::protozero::proto_utils::FieldMetadata<
-      27,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      ChromeLegacyIpc,
-      TrackEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_ChromeLegacyIpc kChromeLegacyIpc() { return {}; }
-  template <typename T = ChromeLegacyIpc> T* set_chrome_legacy_ipc() {
-    return BeginNestedMessage<T>(27);
-  }
-
-
-  using FieldMetadata_ChromeHistogramSample =
-    ::protozero::proto_utils::FieldMetadata<
-      28,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      ChromeHistogramSample,
-      TrackEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_ChromeHistogramSample kChromeHistogramSample() { return {}; }
-  template <typename T = ChromeHistogramSample> T* set_chrome_histogram_sample() {
-    return BeginNestedMessage<T>(28);
-  }
-
-
-  using FieldMetadata_ChromeLatencyInfo =
-    ::protozero::proto_utils::FieldMetadata<
-      29,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      ChromeLatencyInfo,
-      TrackEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_ChromeLatencyInfo kChromeLatencyInfo() { return {}; }
-  template <typename T = ChromeLatencyInfo> T* set_chrome_latency_info() {
-    return BeginNestedMessage<T>(29);
-  }
-
-
-  using FieldMetadata_ChromeFrameReporter =
-    ::protozero::proto_utils::FieldMetadata<
-      32,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      ChromeFrameReporter,
-      TrackEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_ChromeFrameReporter kChromeFrameReporter() { return {}; }
-  template <typename T = ChromeFrameReporter> T* set_chrome_frame_reporter() {
-    return BeginNestedMessage<T>(32);
-  }
-
-
-  using FieldMetadata_ChromeApplicationStateInfo =
-    ::protozero::proto_utils::FieldMetadata<
-      39,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      ChromeApplicationStateInfo,
-      TrackEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_ChromeApplicationStateInfo kChromeApplicationStateInfo() { return {}; }
-  template <typename T = ChromeApplicationStateInfo> T* set_chrome_application_state_info() {
-    return BeginNestedMessage<T>(39);
-  }
-
-
-  using FieldMetadata_ChromeRendererSchedulerState =
-    ::protozero::proto_utils::FieldMetadata<
-      40,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      ChromeRendererSchedulerState,
-      TrackEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_ChromeRendererSchedulerState kChromeRendererSchedulerState() { return {}; }
-  template <typename T = ChromeRendererSchedulerState> T* set_chrome_renderer_scheduler_state() {
-    return BeginNestedMessage<T>(40);
-  }
-
-
-  using FieldMetadata_ChromeWindowHandleEventInfo =
-    ::protozero::proto_utils::FieldMetadata<
-      41,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      ChromeWindowHandleEventInfo,
-      TrackEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_ChromeWindowHandleEventInfo kChromeWindowHandleEventInfo() { return {}; }
-  template <typename T = ChromeWindowHandleEventInfo> T* set_chrome_window_handle_event_info() {
-    return BeginNestedMessage<T>(41);
-  }
-
-
-  using FieldMetadata_ChromeContentSettingsEventInfo =
-    ::protozero::proto_utils::FieldMetadata<
-      43,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      ChromeContentSettingsEventInfo,
-      TrackEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_ChromeContentSettingsEventInfo kChromeContentSettingsEventInfo() { return {}; }
-  template <typename T = ChromeContentSettingsEventInfo> T* set_chrome_content_settings_event_info() {
-    return BeginNestedMessage<T>(43);
-  }
-
-
-  using FieldMetadata_SourceLocation =
-    ::protozero::proto_utils::FieldMetadata<
-      33,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      SourceLocation,
-      TrackEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_SourceLocation kSourceLocation() { return {}; }
-  template <typename T = SourceLocation> T* set_source_location() {
-    return BeginNestedMessage<T>(33);
-  }
-
-
-  using FieldMetadata_SourceLocationIid =
-    ::protozero::proto_utils::FieldMetadata<
-      34,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      TrackEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_SourceLocationIid kSourceLocationIid() { return {}; }
-  void set_source_location_iid(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_SourceLocationIid::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_ChromeMessagePump =
-    ::protozero::proto_utils::FieldMetadata<
-      35,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      ChromeMessagePump,
-      TrackEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_ChromeMessagePump kChromeMessagePump() { return {}; }
-  template <typename T = ChromeMessagePump> T* set_chrome_message_pump() {
-    return BeginNestedMessage<T>(35);
-  }
-
-
-  using FieldMetadata_ChromeMojoEventInfo =
-    ::protozero::proto_utils::FieldMetadata<
-      38,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      ChromeMojoEventInfo,
-      TrackEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_ChromeMojoEventInfo kChromeMojoEventInfo() { return {}; }
-  template <typename T = ChromeMojoEventInfo> T* set_chrome_mojo_event_info() {
-    return BeginNestedMessage<T>(38);
-  }
-
-
-  using FieldMetadata_TimestampDeltaUs =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt64,
-      int64_t,
-      TrackEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_TimestampDeltaUs kTimestampDeltaUs() { return {}; }
-  void set_timestamp_delta_us(int64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_TimestampDeltaUs::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_TimestampAbsoluteUs =
-    ::protozero::proto_utils::FieldMetadata<
-      16,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt64,
-      int64_t,
-      TrackEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_TimestampAbsoluteUs kTimestampAbsoluteUs() { return {}; }
-  void set_timestamp_absolute_us(int64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_TimestampAbsoluteUs::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_ThreadTimeDeltaUs =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt64,
-      int64_t,
-      TrackEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_ThreadTimeDeltaUs kThreadTimeDeltaUs() { return {}; }
-  void set_thread_time_delta_us(int64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_ThreadTimeDeltaUs::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_ThreadTimeAbsoluteUs =
-    ::protozero::proto_utils::FieldMetadata<
-      17,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt64,
-      int64_t,
-      TrackEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_ThreadTimeAbsoluteUs kThreadTimeAbsoluteUs() { return {}; }
-  void set_thread_time_absolute_us(int64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_ThreadTimeAbsoluteUs::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_ThreadInstructionCountDelta =
-    ::protozero::proto_utils::FieldMetadata<
-      8,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt64,
-      int64_t,
-      TrackEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_ThreadInstructionCountDelta kThreadInstructionCountDelta() { return {}; }
-  void set_thread_instruction_count_delta(int64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_ThreadInstructionCountDelta::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_ThreadInstructionCountAbsolute =
-    ::protozero::proto_utils::FieldMetadata<
-      20,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt64,
-      int64_t,
-      TrackEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_ThreadInstructionCountAbsolute kThreadInstructionCountAbsolute() { return {}; }
-  void set_thread_instruction_count_absolute(int64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_ThreadInstructionCountAbsolute::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_LegacyEvent =
-    ::protozero::proto_utils::FieldMetadata<
-      6,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      TrackEvent_LegacyEvent,
-      TrackEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_LegacyEvent kLegacyEvent() { return {}; }
-  template <typename T = TrackEvent_LegacyEvent> T* set_legacy_event() {
-    return BeginNestedMessage<T>(6);
-  }
-
-};
-
-class TrackEvent_LegacyEvent_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/19, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  TrackEvent_LegacyEvent_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit TrackEvent_LegacyEvent_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit TrackEvent_LegacyEvent_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_name_iid() const { return at<1>().valid(); }
-  uint64_t name_iid() const { return at<1>().as_uint64(); }
-  bool has_phase() const { return at<2>().valid(); }
-  int32_t phase() const { return at<2>().as_int32(); }
-  bool has_duration_us() const { return at<3>().valid(); }
-  int64_t duration_us() const { return at<3>().as_int64(); }
-  bool has_thread_duration_us() const { return at<4>().valid(); }
-  int64_t thread_duration_us() const { return at<4>().as_int64(); }
-  bool has_thread_instruction_delta() const { return at<15>().valid(); }
-  int64_t thread_instruction_delta() const { return at<15>().as_int64(); }
-  bool has_unscoped_id() const { return at<6>().valid(); }
-  uint64_t unscoped_id() const { return at<6>().as_uint64(); }
-  bool has_local_id() const { return at<10>().valid(); }
-  uint64_t local_id() const { return at<10>().as_uint64(); }
-  bool has_global_id() const { return at<11>().valid(); }
-  uint64_t global_id() const { return at<11>().as_uint64(); }
-  bool has_id_scope() const { return at<7>().valid(); }
-  ::protozero::ConstChars id_scope() const { return at<7>().as_string(); }
-  bool has_use_async_tts() const { return at<9>().valid(); }
-  bool use_async_tts() const { return at<9>().as_bool(); }
-  bool has_bind_id() const { return at<8>().valid(); }
-  uint64_t bind_id() const { return at<8>().as_uint64(); }
-  bool has_bind_to_enclosing() const { return at<12>().valid(); }
-  bool bind_to_enclosing() const { return at<12>().as_bool(); }
-  bool has_flow_direction() const { return at<13>().valid(); }
-  int32_t flow_direction() const { return at<13>().as_int32(); }
-  bool has_instant_event_scope() const { return at<14>().valid(); }
-  int32_t instant_event_scope() const { return at<14>().as_int32(); }
-  bool has_pid_override() const { return at<18>().valid(); }
-  int32_t pid_override() const { return at<18>().as_int32(); }
-  bool has_tid_override() const { return at<19>().valid(); }
-  int32_t tid_override() const { return at<19>().as_int32(); }
-};
-
-class TrackEvent_LegacyEvent : public ::protozero::Message {
- public:
-  using Decoder = TrackEvent_LegacyEvent_Decoder;
-  enum : int32_t {
-    kNameIidFieldNumber = 1,
-    kPhaseFieldNumber = 2,
-    kDurationUsFieldNumber = 3,
-    kThreadDurationUsFieldNumber = 4,
-    kThreadInstructionDeltaFieldNumber = 15,
-    kUnscopedIdFieldNumber = 6,
-    kLocalIdFieldNumber = 10,
-    kGlobalIdFieldNumber = 11,
-    kIdScopeFieldNumber = 7,
-    kUseAsyncTtsFieldNumber = 9,
-    kBindIdFieldNumber = 8,
-    kBindToEnclosingFieldNumber = 12,
-    kFlowDirectionFieldNumber = 13,
-    kInstantEventScopeFieldNumber = 14,
-    kPidOverrideFieldNumber = 18,
-    kTidOverrideFieldNumber = 19,
-  };
-  using FlowDirection = ::perfetto::protos::pbzero::TrackEvent_LegacyEvent_FlowDirection;
-  using InstantEventScope = ::perfetto::protos::pbzero::TrackEvent_LegacyEvent_InstantEventScope;
-  static const FlowDirection FLOW_UNSPECIFIED = TrackEvent_LegacyEvent_FlowDirection_FLOW_UNSPECIFIED;
-  static const FlowDirection FLOW_IN = TrackEvent_LegacyEvent_FlowDirection_FLOW_IN;
-  static const FlowDirection FLOW_OUT = TrackEvent_LegacyEvent_FlowDirection_FLOW_OUT;
-  static const FlowDirection FLOW_INOUT = TrackEvent_LegacyEvent_FlowDirection_FLOW_INOUT;
-  static const InstantEventScope SCOPE_UNSPECIFIED = TrackEvent_LegacyEvent_InstantEventScope_SCOPE_UNSPECIFIED;
-  static const InstantEventScope SCOPE_GLOBAL = TrackEvent_LegacyEvent_InstantEventScope_SCOPE_GLOBAL;
-  static const InstantEventScope SCOPE_PROCESS = TrackEvent_LegacyEvent_InstantEventScope_SCOPE_PROCESS;
-  static const InstantEventScope SCOPE_THREAD = TrackEvent_LegacyEvent_InstantEventScope_SCOPE_THREAD;
-
-  using FieldMetadata_NameIid =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      TrackEvent_LegacyEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_NameIid kNameIid() { return {}; }
-  void set_name_iid(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_NameIid::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Phase =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt32,
-      int32_t,
-      TrackEvent_LegacyEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Phase kPhase() { return {}; }
-  void set_phase(int32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Phase::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_DurationUs =
-    ::protozero::proto_utils::FieldMetadata<
-      3,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt64,
-      int64_t,
-      TrackEvent_LegacyEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_DurationUs kDurationUs() { return {}; }
-  void set_duration_us(int64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_DurationUs::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_ThreadDurationUs =
-    ::protozero::proto_utils::FieldMetadata<
-      4,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt64,
-      int64_t,
-      TrackEvent_LegacyEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_ThreadDurationUs kThreadDurationUs() { return {}; }
-  void set_thread_duration_us(int64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_ThreadDurationUs::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_ThreadInstructionDelta =
-    ::protozero::proto_utils::FieldMetadata<
-      15,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt64,
-      int64_t,
-      TrackEvent_LegacyEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_ThreadInstructionDelta kThreadInstructionDelta() { return {}; }
-  void set_thread_instruction_delta(int64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_ThreadInstructionDelta::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_UnscopedId =
-    ::protozero::proto_utils::FieldMetadata<
-      6,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      TrackEvent_LegacyEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_UnscopedId kUnscopedId() { return {}; }
-  void set_unscoped_id(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_UnscopedId::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_LocalId =
-    ::protozero::proto_utils::FieldMetadata<
-      10,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      TrackEvent_LegacyEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_LocalId kLocalId() { return {}; }
-  void set_local_id(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_LocalId::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_GlobalId =
-    ::protozero::proto_utils::FieldMetadata<
-      11,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      TrackEvent_LegacyEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_GlobalId kGlobalId() { return {}; }
-  void set_global_id(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_GlobalId::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_IdScope =
-    ::protozero::proto_utils::FieldMetadata<
-      7,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kString,
-      std::string,
-      TrackEvent_LegacyEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_IdScope kIdScope() { return {}; }
-  void set_id_scope(const char* data, size_t size) {
-    AppendBytes(FieldMetadata_IdScope::kFieldId, data, size);
-  }
-  void set_id_scope(std::string value) {
-    static constexpr uint32_t field_id = FieldMetadata_IdScope::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kString>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_UseAsyncTts =
-    ::protozero::proto_utils::FieldMetadata<
-      9,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kBool,
-      bool,
-      TrackEvent_LegacyEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_UseAsyncTts kUseAsyncTts() { return {}; }
-  void set_use_async_tts(bool value) {
-    static constexpr uint32_t field_id = FieldMetadata_UseAsyncTts::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kBool>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_BindId =
-    ::protozero::proto_utils::FieldMetadata<
-      8,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      TrackEvent_LegacyEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_BindId kBindId() { return {}; }
-  void set_bind_id(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_BindId::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_BindToEnclosing =
-    ::protozero::proto_utils::FieldMetadata<
-      12,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kBool,
-      bool,
-      TrackEvent_LegacyEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_BindToEnclosing kBindToEnclosing() { return {}; }
-  void set_bind_to_enclosing(bool value) {
-    static constexpr uint32_t field_id = FieldMetadata_BindToEnclosing::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kBool>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_FlowDirection =
-    ::protozero::proto_utils::FieldMetadata<
-      13,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kEnum,
-      ::perfetto::protos::pbzero::TrackEvent_LegacyEvent_FlowDirection,
-      TrackEvent_LegacyEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_FlowDirection kFlowDirection() { return {}; }
-  void set_flow_direction(::perfetto::protos::pbzero::TrackEvent_LegacyEvent_FlowDirection value) {
-    static constexpr uint32_t field_id = FieldMetadata_FlowDirection::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kEnum>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_InstantEventScope =
-    ::protozero::proto_utils::FieldMetadata<
-      14,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kEnum,
-      ::perfetto::protos::pbzero::TrackEvent_LegacyEvent_InstantEventScope,
-      TrackEvent_LegacyEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_InstantEventScope kInstantEventScope() { return {}; }
-  void set_instant_event_scope(::perfetto::protos::pbzero::TrackEvent_LegacyEvent_InstantEventScope value) {
-    static constexpr uint32_t field_id = FieldMetadata_InstantEventScope::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kEnum>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_PidOverride =
-    ::protozero::proto_utils::FieldMetadata<
-      18,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt32,
-      int32_t,
-      TrackEvent_LegacyEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_PidOverride kPidOverride() { return {}; }
-  void set_pid_override(int32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_PidOverride::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_TidOverride =
-    ::protozero::proto_utils::FieldMetadata<
-      19,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt32,
-      int32_t,
-      TrackEvent_LegacyEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_TidOverride kTidOverride() { return {}; }
-  void set_tid_override(int32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_TidOverride::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt32>
-        ::Append(*this, field_id, value);
-  }
-};
-
-} // Namespace.
-} // Namespace.
-} // Namespace.
-#endif  // Include guard.
-/*
- * Copyright (C) 2020 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef INCLUDE_PERFETTO_TRACING_TRACK_EVENT_STATE_TRACKER_H_
-#define INCLUDE_PERFETTO_TRACING_TRACK_EVENT_STATE_TRACKER_H_
-
-// gen_amalgamated expanded: #include "perfetto/base/export.h"
-
-// gen_amalgamated expanded: #include "protos/perfetto/trace/track_event/track_event.pbzero.h"
-
-#include <map>
-#include <string>
-#include <vector>
-
-namespace perfetto {
-namespace protos {
-namespace pbzero {
-class TracePacket_Decoder;
-class TrackEvent;
-class TrackEvent_Decoder;
-}  // namespace pbzero
-}  // namespace protos
-
-// A helper for keeping track of incremental state when intercepting track
-// events.
-class PERFETTO_EXPORT TrackEventStateTracker {
- public:
-  ~TrackEventStateTracker();
-
-  struct StackFrame {
-    uint64_t timestamp{};
-
-    // Only one of |name| and |name_iid| will be set.
-    std::string name;
-    uint64_t name_iid{};
-    uint64_t name_hash{};
-
-    // Only one of |category| and |category_iid| will be set.
-    std::string category;
-    uint64_t category_iid{};
-  };
-
-  struct Track {
-    uint64_t uuid{};
-    uint32_t index{};  // Ordinal number for the track in the tracing session.
-
-    std::string name;
-    int64_t pid{};
-    int64_t tid{};
-
-    // Opaque user data associated with the track.
-    std::vector<uint8_t> user_data;
-
-    // Stack of opened slices on this track.
-    std::vector<StackFrame> stack;
-  };
-
-  // State for a single trace writer sequence (typically a single thread).
-  struct SequenceState {
-    // Trace packet sequence defaults.
-    Track track;
-
-    // Interned state.
-#if PERFETTO_DCHECK_IS_ON()
-    uint32_t sequence_id{};
-#endif
-    std::map<uint64_t /*iid*/, std::string> event_names;
-    std::map<uint64_t /*iid*/, std::string> event_categories;
-    std::map<uint64_t /*iid*/, std::string> debug_annotation_names;
-  };
-
-  // State for the entire tracing session. Shared by all trace writer sequences
-  // participating in the session.
-  struct SessionState {
-    // Non-thread-bound tracks.
-    std::map<uint64_t /*uuid*/, Track> tracks;
-  };
-
-  // Represents a single decoded track event (without arguments).
-  struct ParsedTrackEvent {
-    explicit ParsedTrackEvent(
-        const perfetto::protos::pbzero::TrackEvent::Decoder&);
-
-    // Underlying event.
-    const perfetto::protos::pbzero::TrackEvent::Decoder& track_event;
-
-    // Event metadata.
-    uint64_t timestamp_ns{};
-    uint64_t duration_ns{};
-
-    size_t stack_depth{};
-
-    protozero::ConstChars category{};
-    protozero::ConstChars name{};
-    uint64_t name_hash{};
-  };
-
-  // Interface used by the tracker to access tracing session and sequence state
-  // and to report parsed track events.
-  class Delegate {
-   public:
-    virtual ~Delegate();
-
-    // Called to retrieve the session-global state shared by all sequences. The
-    // returned pointer must remain valid (locked) throughout the call to
-    // |ProcessTracePacket|.
-    virtual SessionState* GetSessionState() = 0;
-
-    // Called when the metadata (e.g., name) for a track changes. |Track| can be
-    // modified by the callback to attach user data.
-    virtual void OnTrackUpdated(Track&) = 0;
-
-    // If the packet given to |ProcessTracePacket| contains a track event, this
-    // method is called to report the properties of that event. Note that memory
-    // pointers in |TrackEvent| will only be valid during this call.
-    virtual void OnTrackEvent(const Track&, const ParsedTrackEvent&) = 0;
-  };
-
-  // Process a single trace packet, reporting any contained track event back via
-  // the delegate interface. |SequenceState| must correspond to the sequence
-  // that was used to write the packet.
-  static void ProcessTracePacket(Delegate&,
-                                 SequenceState&,
-                                 const protos::pbzero::TracePacket_Decoder&);
-
- private:
-  static void UpdateIncrementalState(
-      Delegate&,
-      SequenceState&,
-      const protos::pbzero::TracePacket_Decoder&);
-};
-
-}  // namespace perfetto
-
-#endif  // INCLUDE_PERFETTO_TRACING_TRACK_EVENT_STATE_TRACKER_H_
-/*
- * Copyright (C) 2020 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef INCLUDE_PERFETTO_TRACING_CONSOLE_INTERCEPTOR_H_
-#define INCLUDE_PERFETTO_TRACING_CONSOLE_INTERCEPTOR_H_
-
-// gen_amalgamated expanded: #include "perfetto/base/compiler.h"
-// gen_amalgamated expanded: #include "perfetto/base/logging.h"
-// gen_amalgamated expanded: #include "perfetto/tracing/interceptor.h"
-// gen_amalgamated expanded: #include "perfetto/tracing/track_event_state_tracker.h"
-
-#include <stdarg.h>
-
-#include <functional>
-#include <map>
-#include <vector>
-
-#if PERFETTO_BUILDFLAG(PERFETTO_OS_WIN)
-#include <io.h>
-#else
-#include <unistd.h>
-#endif
-
-#if defined(__GNUC__) || defined(__clang__)
-#define PERFETTO_PRINTF_ATTR \
-  __attribute__((format(printf, /*format_index=*/2, /*first_to_check=*/3)))
-#else
-#define PERFETTO_PRINTF_ATTR
-#endif
-
-#if PERFETTO_BUILDFLAG(PERFETTO_OS_WIN) && !defined(STDOUT_FILENO)
-#define STDOUT_FILENO 1
-#define STDERR_FILENO 2
-#endif
-
-namespace perfetto {
-namespace protos {
-namespace pbzero {
-class DebugAnnotation_Decoder;
-class TracePacket_Decoder;
-class TrackEvent_Decoder;
-}  // namespace pbzero
-}  // namespace protos
-
-struct ConsoleColor;
-
-class PERFETTO_EXPORT ConsoleInterceptor
-    : public Interceptor<ConsoleInterceptor> {
- public:
-  ~ConsoleInterceptor() override;
-
-  static void Register();
-  static void OnTracePacket(InterceptorContext context);
-
-  static void SetOutputFdForTesting(int fd);
-
-  void OnSetup(const SetupArgs&) override;
-  void OnStart(const StartArgs&) override;
-  void OnStop(const StopArgs&) override;
-
-  struct ThreadLocalState : public InterceptorBase::ThreadLocalState {
-    ThreadLocalState(ThreadLocalStateArgs&);
-    ~ThreadLocalState() override;
-
-    // Destination file. Assumed to stay valid until the program ends (i.e., is
-    // stderr or stdout).
-    int fd{};
-    bool use_colors{};
-
-    // Messages up to this length are buffered and written atomically. If a
-    // message is longer, it will be printed with multiple writes.
-    std::array<char, 1024> message_buffer{};
-    size_t buffer_pos{};
-
-    // We only support a single trace writer sequence per thread, so the
-    // sequence state is stored in TLS.
-    TrackEventStateTracker::SequenceState sequence_state;
-    uint64_t start_time_ns{};
-  };
-
- private:
-  class Delegate;
-
-  // Appends a formatted message to |message_buffer_| or directly to the output
-  // file if the buffer is full.
-  static void Printf(InterceptorContext& context,
-                     const char* format,
-                     ...) PERFETTO_PRINTF_ATTR;
-  static void Flush(InterceptorContext& context);
-  static void SetColor(InterceptorContext& context, const ConsoleColor&);
-  static void SetColor(InterceptorContext& context, const char*);
-
-  static void PrintDebugAnnotations(InterceptorContext&,
-                                    const protos::pbzero::TrackEvent_Decoder&,
-                                    const ConsoleColor& slice_color,
-                                    const ConsoleColor& highlight_color);
-  static void PrintDebugAnnotationName(
-      InterceptorContext&,
-      const perfetto::protos::pbzero::DebugAnnotation_Decoder& annotation);
-  static void PrintDebugAnnotationValue(
-      InterceptorContext&,
-      const perfetto::protos::pbzero::DebugAnnotation_Decoder& annotation);
-
-  int fd_ = STDOUT_FILENO;
-  bool use_colors_ = true;
-
-  TrackEventStateTracker::SessionState session_state_;
-  uint64_t start_time_ns_{};
-};
-
-}  // namespace perfetto
-
-#endif  // INCLUDE_PERFETTO_TRACING_CONSOLE_INTERCEPTOR_H_
-// gen_amalgamated begin header: include/perfetto/tracing/core/data_source_config.h
-// gen_amalgamated begin header: gen/protos/perfetto/config/data_source_config.gen.h
-// gen_amalgamated begin header: include/perfetto/protozero/cpp_message_obj.h
-/*
- * Copyright (C) 2019 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef INCLUDE_PERFETTO_PROTOZERO_CPP_MESSAGE_OBJ_H_
-#define INCLUDE_PERFETTO_PROTOZERO_CPP_MESSAGE_OBJ_H_
-
-#include <stdint.h>
-
-#include <string>
-#include <vector>
-
-// gen_amalgamated expanded: #include "perfetto/base/export.h"
-
-namespace protozero {
-
-// Base class for generated .gen.h classes, which are full C++ objects that
-// support both ser and deserialization (but are not zero-copy).
-// This is only used by the "cpp" targets not the "pbzero" ones.
-class PERFETTO_EXPORT CppMessageObj {
- public:
-  virtual ~CppMessageObj();
-  virtual std::string SerializeAsString() const = 0;
-  virtual std::vector<uint8_t> SerializeAsArray() const = 0;
-  virtual bool ParseFromArray(const void*, size_t) = 0;
-
-  bool ParseFromString(const std::string& str) {
-    return ParseFromArray(str.data(), str.size());
-  }
-};
-
-}  // namespace protozero
-
-#endif  // INCLUDE_PERFETTO_PROTOZERO_CPP_MESSAGE_OBJ_H_
-// gen_amalgamated begin header: include/perfetto/protozero/copyable_ptr.h
-/*
- * Copyright (C) 2019 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef INCLUDE_PERFETTO_PROTOZERO_COPYABLE_PTR_H_
-#define INCLUDE_PERFETTO_PROTOZERO_COPYABLE_PTR_H_
-
-#include <memory>
-
-namespace protozero {
-
-// This class is essentially a std::vector<T> of fixed size = 1.
-// It's a pointer wrapper with deep copying and deep equality comparison.
-// At all effects this wrapper behaves like the underlying T, with the exception
-// of the heap indirection.
-// Conversely to a std::unique_ptr, the pointer will be always valid, never
-// null. The problem it solves is the following: when generating C++ classes
-// from proto files, we want to keep each header hermetic (i.e. not #include
-// headers of dependent types). As such we can't directly instantiate T
-// field members but we can instead rely on pointers, so only the .cc file needs
-// to see the actual definition of T. If the generated classes were move-only we
-// could just use a unique_ptr there. But they aren't, hence this wrapper.
-// Converesely to unique_ptr, this wrapper:
-// - Default constructs the T instance in its constructor.
-// - Implements deep comparison in operator== instead of pointer comparison.
-template <typename T>
-class CopyablePtr {
- public:
-  CopyablePtr() : ptr_(new T()) {}
-  ~CopyablePtr() = default;
-
-  // Copy operators.
-  CopyablePtr(const CopyablePtr& other) : ptr_(new T(*other.ptr_)) {}
-  CopyablePtr& operator=(const CopyablePtr& other) {
-    *ptr_ = *other.ptr_;
-    return *this;
-  }
-
-  // Move operators.
-  CopyablePtr(CopyablePtr&& other) noexcept : ptr_(std::move(other.ptr_)) {
-    other.ptr_.reset(new T());
-  }
-
-  CopyablePtr& operator=(CopyablePtr&& other) {
-    ptr_ = std::move(other.ptr_);
-    other.ptr_.reset(new T());
-    return *this;
-  }
-
-  T* get() { return ptr_.get(); }
-  const T* get() const { return ptr_.get(); }
-
-  T* operator->() { return ptr_.get(); }
-  const T* operator->() const { return ptr_.get(); }
-
-  T& operator*() { return *ptr_; }
-  const T& operator*() const { return *ptr_; }
-
-  friend bool operator==(const CopyablePtr& lhs, const CopyablePtr& rhs) {
-    return *lhs == *rhs;
-  }
-
-  friend bool operator!=(const CopyablePtr& lhs, const CopyablePtr& rhs) {
-    // In theory the underlying type might have a special operator!=
-    // implementation which is not just !(x == y). Respect that.
-    return *lhs != *rhs;
-  }
-
- private:
-  std::unique_ptr<T> ptr_;
-};
-
-}  // namespace protozero
-
-#endif  // INCLUDE_PERFETTO_PROTOZERO_COPYABLE_PTR_H_
-// DO NOT EDIT. Autogenerated by Perfetto cppgen_plugin
-#ifndef PERFETTO_PROTOS_PROTOS_PERFETTO_CONFIG_DATA_SOURCE_CONFIG_PROTO_CPP_H_
-#define PERFETTO_PROTOS_PROTOS_PERFETTO_CONFIG_DATA_SOURCE_CONFIG_PROTO_CPP_H_
-
-#include <stdint.h>
-#include <bitset>
-#include <vector>
-#include <string>
-#include <type_traits>
-
-// gen_amalgamated expanded: #include "perfetto/protozero/cpp_message_obj.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/copyable_ptr.h"
-// gen_amalgamated expanded: #include "perfetto/base/export.h"
-
-namespace perfetto {
-namespace protos {
-namespace gen {
-class DataSourceConfig;
-class TestConfig;
-class TestConfig_DummyFields;
-class InterceptorConfig;
-class ChromeConfig;
-enum DataSourceConfig_SessionInitiator : int;
-enum ChromeConfig_ClientPriority : int;
-}  // namespace perfetto
-}  // namespace protos
-}  // namespace gen
-
-namespace protozero {
-class Message;
-}  // namespace protozero
-
-namespace perfetto {
-namespace protos {
-namespace gen {
-enum DataSourceConfig_SessionInitiator : int {
-  DataSourceConfig_SessionInitiator_SESSION_INITIATOR_UNSPECIFIED = 0,
-  DataSourceConfig_SessionInitiator_SESSION_INITIATOR_TRUSTED_SYSTEM = 1,
-};
-
-class PERFETTO_EXPORT DataSourceConfig : public ::protozero::CppMessageObj {
- public:
-  using SessionInitiator = DataSourceConfig_SessionInitiator;
-  static constexpr auto SESSION_INITIATOR_UNSPECIFIED = DataSourceConfig_SessionInitiator_SESSION_INITIATOR_UNSPECIFIED;
-  static constexpr auto SESSION_INITIATOR_TRUSTED_SYSTEM = DataSourceConfig_SessionInitiator_SESSION_INITIATOR_TRUSTED_SYSTEM;
-  static constexpr auto SessionInitiator_MIN = DataSourceConfig_SessionInitiator_SESSION_INITIATOR_UNSPECIFIED;
-  static constexpr auto SessionInitiator_MAX = DataSourceConfig_SessionInitiator_SESSION_INITIATOR_TRUSTED_SYSTEM;
-  enum FieldNumbers {
-    kNameFieldNumber = 1,
-    kTargetBufferFieldNumber = 2,
-    kTraceDurationMsFieldNumber = 3,
-    kStopTimeoutMsFieldNumber = 7,
-    kEnableExtraGuardrailsFieldNumber = 6,
-    kSessionInitiatorFieldNumber = 8,
-    kTracingSessionIdFieldNumber = 4,
-    kFtraceConfigFieldNumber = 100,
-    kInodeFileConfigFieldNumber = 102,
-    kProcessStatsConfigFieldNumber = 103,
-    kSysStatsConfigFieldNumber = 104,
-    kHeapprofdConfigFieldNumber = 105,
-    kJavaHprofConfigFieldNumber = 110,
-    kAndroidPowerConfigFieldNumber = 106,
-    kAndroidLogConfigFieldNumber = 107,
-    kGpuCounterConfigFieldNumber = 108,
-    kPackagesListConfigFieldNumber = 109,
-    kPerfEventConfigFieldNumber = 111,
-    kVulkanMemoryConfigFieldNumber = 112,
-    kTrackEventConfigFieldNumber = 113,
-    kAndroidPolledStateConfigFieldNumber = 114,
-    kChromeConfigFieldNumber = 101,
-    kInterceptorConfigFieldNumber = 115,
-    kLegacyConfigFieldNumber = 1000,
-    kForTestingFieldNumber = 1001,
-  };
-
-  DataSourceConfig();
-  ~DataSourceConfig() override;
-  DataSourceConfig(DataSourceConfig&&) noexcept;
-  DataSourceConfig& operator=(DataSourceConfig&&);
-  DataSourceConfig(const DataSourceConfig&);
-  DataSourceConfig& operator=(const DataSourceConfig&);
-  bool operator==(const DataSourceConfig&) const;
-  bool operator!=(const DataSourceConfig& other) const { return !(*this == other); }
-
-  bool ParseFromArray(const void*, size_t) override;
-  std::string SerializeAsString() const override;
-  std::vector<uint8_t> SerializeAsArray() const override;
-  void Serialize(::protozero::Message*) const;
-
-  bool has_name() const { return _has_field_[1]; }
-  const std::string& name() const { return name_; }
-  void set_name(const std::string& value) { name_ = value; _has_field_.set(1); }
-
-  bool has_target_buffer() const { return _has_field_[2]; }
-  uint32_t target_buffer() const { return target_buffer_; }
-  void set_target_buffer(uint32_t value) { target_buffer_ = value; _has_field_.set(2); }
-
-  bool has_trace_duration_ms() const { return _has_field_[3]; }
-  uint32_t trace_duration_ms() const { return trace_duration_ms_; }
-  void set_trace_duration_ms(uint32_t value) { trace_duration_ms_ = value; _has_field_.set(3); }
-
-  bool has_stop_timeout_ms() const { return _has_field_[7]; }
-  uint32_t stop_timeout_ms() const { return stop_timeout_ms_; }
-  void set_stop_timeout_ms(uint32_t value) { stop_timeout_ms_ = value; _has_field_.set(7); }
-
-  bool has_enable_extra_guardrails() const { return _has_field_[6]; }
-  bool enable_extra_guardrails() const { return enable_extra_guardrails_; }
-  void set_enable_extra_guardrails(bool value) { enable_extra_guardrails_ = value; _has_field_.set(6); }
-
-  bool has_session_initiator() const { return _has_field_[8]; }
-  DataSourceConfig_SessionInitiator session_initiator() const { return session_initiator_; }
-  void set_session_initiator(DataSourceConfig_SessionInitiator value) { session_initiator_ = value; _has_field_.set(8); }
-
-  bool has_tracing_session_id() const { return _has_field_[4]; }
-  uint64_t tracing_session_id() const { return tracing_session_id_; }
-  void set_tracing_session_id(uint64_t value) { tracing_session_id_ = value; _has_field_.set(4); }
-
-  const std::string& ftrace_config_raw() const { return ftrace_config_; }
-  void set_ftrace_config_raw(const std::string& raw) { ftrace_config_ = raw; _has_field_.set(100); }
-
-  const std::string& inode_file_config_raw() const { return inode_file_config_; }
-  void set_inode_file_config_raw(const std::string& raw) { inode_file_config_ = raw; _has_field_.set(102); }
-
-  const std::string& process_stats_config_raw() const { return process_stats_config_; }
-  void set_process_stats_config_raw(const std::string& raw) { process_stats_config_ = raw; _has_field_.set(103); }
-
-  const std::string& sys_stats_config_raw() const { return sys_stats_config_; }
-  void set_sys_stats_config_raw(const std::string& raw) { sys_stats_config_ = raw; _has_field_.set(104); }
-
-  const std::string& heapprofd_config_raw() const { return heapprofd_config_; }
-  void set_heapprofd_config_raw(const std::string& raw) { heapprofd_config_ = raw; _has_field_.set(105); }
-
-  const std::string& java_hprof_config_raw() const { return java_hprof_config_; }
-  void set_java_hprof_config_raw(const std::string& raw) { java_hprof_config_ = raw; _has_field_.set(110); }
-
-  const std::string& android_power_config_raw() const { return android_power_config_; }
-  void set_android_power_config_raw(const std::string& raw) { android_power_config_ = raw; _has_field_.set(106); }
-
-  const std::string& android_log_config_raw() const { return android_log_config_; }
-  void set_android_log_config_raw(const std::string& raw) { android_log_config_ = raw; _has_field_.set(107); }
-
-  const std::string& gpu_counter_config_raw() const { return gpu_counter_config_; }
-  void set_gpu_counter_config_raw(const std::string& raw) { gpu_counter_config_ = raw; _has_field_.set(108); }
-
-  const std::string& packages_list_config_raw() const { return packages_list_config_; }
-  void set_packages_list_config_raw(const std::string& raw) { packages_list_config_ = raw; _has_field_.set(109); }
-
-  const std::string& perf_event_config_raw() const { return perf_event_config_; }
-  void set_perf_event_config_raw(const std::string& raw) { perf_event_config_ = raw; _has_field_.set(111); }
-
-  const std::string& vulkan_memory_config_raw() const { return vulkan_memory_config_; }
-  void set_vulkan_memory_config_raw(const std::string& raw) { vulkan_memory_config_ = raw; _has_field_.set(112); }
-
-  const std::string& track_event_config_raw() const { return track_event_config_; }
-  void set_track_event_config_raw(const std::string& raw) { track_event_config_ = raw; _has_field_.set(113); }
-
-  const std::string& android_polled_state_config_raw() const { return android_polled_state_config_; }
-  void set_android_polled_state_config_raw(const std::string& raw) { android_polled_state_config_ = raw; _has_field_.set(114); }
-
-  bool has_chrome_config() const { return _has_field_[101]; }
-  const ChromeConfig& chrome_config() const { return *chrome_config_; }
-  ChromeConfig* mutable_chrome_config() { _has_field_.set(101); return chrome_config_.get(); }
-
-  bool has_interceptor_config() const { return _has_field_[115]; }
-  const InterceptorConfig& interceptor_config() const { return *interceptor_config_; }
-  InterceptorConfig* mutable_interceptor_config() { _has_field_.set(115); return interceptor_config_.get(); }
-
-  bool has_legacy_config() const { return _has_field_[1000]; }
-  const std::string& legacy_config() const { return legacy_config_; }
-  void set_legacy_config(const std::string& value) { legacy_config_ = value; _has_field_.set(1000); }
-
-  bool has_for_testing() const { return _has_field_[1001]; }
-  const TestConfig& for_testing() const { return *for_testing_; }
-  TestConfig* mutable_for_testing() { _has_field_.set(1001); return for_testing_.get(); }
-
- private:
-  std::string name_{};
-  uint32_t target_buffer_{};
-  uint32_t trace_duration_ms_{};
-  uint32_t stop_timeout_ms_{};
-  bool enable_extra_guardrails_{};
-  DataSourceConfig_SessionInitiator session_initiator_{};
-  uint64_t tracing_session_id_{};
-  std::string ftrace_config_;  // [lazy=true]
-  std::string inode_file_config_;  // [lazy=true]
-  std::string process_stats_config_;  // [lazy=true]
-  std::string sys_stats_config_;  // [lazy=true]
-  std::string heapprofd_config_;  // [lazy=true]
-  std::string java_hprof_config_;  // [lazy=true]
-  std::string android_power_config_;  // [lazy=true]
-  std::string android_log_config_;  // [lazy=true]
-  std::string gpu_counter_config_;  // [lazy=true]
-  std::string packages_list_config_;  // [lazy=true]
-  std::string perf_event_config_;  // [lazy=true]
-  std::string vulkan_memory_config_;  // [lazy=true]
-  std::string track_event_config_;  // [lazy=true]
-  std::string android_polled_state_config_;  // [lazy=true]
-  ::protozero::CopyablePtr<ChromeConfig> chrome_config_;
-  ::protozero::CopyablePtr<InterceptorConfig> interceptor_config_;
-  std::string legacy_config_{};
-  ::protozero::CopyablePtr<TestConfig> for_testing_;
-
-  // Allows to preserve unknown protobuf fields for compatibility
-  // with future versions of .proto files.
-  std::string unknown_fields_;
-
-  std::bitset<1002> _has_field_{};
-};
-
-}  // namespace perfetto
-}  // namespace protos
-}  // namespace gen
-
-#endif  // PERFETTO_PROTOS_PROTOS_PERFETTO_CONFIG_DATA_SOURCE_CONFIG_PROTO_CPP_H_
-/*
- * Copyright (C) 2017 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef INCLUDE_PERFETTO_TRACING_CORE_DATA_SOURCE_CONFIG_H_
-#define INCLUDE_PERFETTO_TRACING_CORE_DATA_SOURCE_CONFIG_H_
-
-// Creates the aliases in the ::perfetto namespace, doing things like:
-// using ::perfetto::Foo = ::perfetto::protos::gen::Foo.
-// See comments in forward_decls.h for the historical reasons of this
-// indirection layer.
-// gen_amalgamated expanded: #include "perfetto/tracing/core/forward_decls.h"
-
-// gen_amalgamated expanded: #include "protos/perfetto/config/data_source_config.gen.h"
-
-#endif  // INCLUDE_PERFETTO_TRACING_CORE_DATA_SOURCE_CONFIG_H_
-// gen_amalgamated begin header: include/perfetto/tracing/core/data_source_descriptor.h
-// gen_amalgamated begin header: gen/protos/perfetto/common/data_source_descriptor.gen.h
-// DO NOT EDIT. Autogenerated by Perfetto cppgen_plugin
-#ifndef PERFETTO_PROTOS_PROTOS_PERFETTO_COMMON_DATA_SOURCE_DESCRIPTOR_PROTO_CPP_H_
-#define PERFETTO_PROTOS_PROTOS_PERFETTO_COMMON_DATA_SOURCE_DESCRIPTOR_PROTO_CPP_H_
-
-#include <stdint.h>
-#include <bitset>
-#include <vector>
-#include <string>
-#include <type_traits>
-
-// gen_amalgamated expanded: #include "perfetto/protozero/cpp_message_obj.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/copyable_ptr.h"
-// gen_amalgamated expanded: #include "perfetto/base/export.h"
-
-namespace perfetto {
-namespace protos {
-namespace gen {
-class DataSourceDescriptor;
-}  // namespace perfetto
-}  // namespace protos
-}  // namespace gen
-
-namespace protozero {
-class Message;
-}  // namespace protozero
-
-namespace perfetto {
-namespace protos {
-namespace gen {
-
-class PERFETTO_EXPORT DataSourceDescriptor : public ::protozero::CppMessageObj {
- public:
-  enum FieldNumbers {
-    kNameFieldNumber = 1,
-    kWillNotifyOnStopFieldNumber = 2,
-    kWillNotifyOnStartFieldNumber = 3,
-    kHandlesIncrementalStateClearFieldNumber = 4,
-    kGpuCounterDescriptorFieldNumber = 5,
-    kTrackEventDescriptorFieldNumber = 6,
-  };
-
-  DataSourceDescriptor();
-  ~DataSourceDescriptor() override;
-  DataSourceDescriptor(DataSourceDescriptor&&) noexcept;
-  DataSourceDescriptor& operator=(DataSourceDescriptor&&);
-  DataSourceDescriptor(const DataSourceDescriptor&);
-  DataSourceDescriptor& operator=(const DataSourceDescriptor&);
-  bool operator==(const DataSourceDescriptor&) const;
-  bool operator!=(const DataSourceDescriptor& other) const { return !(*this == other); }
-
-  bool ParseFromArray(const void*, size_t) override;
-  std::string SerializeAsString() const override;
-  std::vector<uint8_t> SerializeAsArray() const override;
-  void Serialize(::protozero::Message*) const;
-
-  bool has_name() const { return _has_field_[1]; }
-  const std::string& name() const { return name_; }
-  void set_name(const std::string& value) { name_ = value; _has_field_.set(1); }
-
-  bool has_will_notify_on_stop() const { return _has_field_[2]; }
-  bool will_notify_on_stop() const { return will_notify_on_stop_; }
-  void set_will_notify_on_stop(bool value) { will_notify_on_stop_ = value; _has_field_.set(2); }
-
-  bool has_will_notify_on_start() const { return _has_field_[3]; }
-  bool will_notify_on_start() const { return will_notify_on_start_; }
-  void set_will_notify_on_start(bool value) { will_notify_on_start_ = value; _has_field_.set(3); }
-
-  bool has_handles_incremental_state_clear() const { return _has_field_[4]; }
-  bool handles_incremental_state_clear() const { return handles_incremental_state_clear_; }
-  void set_handles_incremental_state_clear(bool value) { handles_incremental_state_clear_ = value; _has_field_.set(4); }
-
-  const std::string& gpu_counter_descriptor_raw() const { return gpu_counter_descriptor_; }
-  void set_gpu_counter_descriptor_raw(const std::string& raw) { gpu_counter_descriptor_ = raw; _has_field_.set(5); }
-
-  const std::string& track_event_descriptor_raw() const { return track_event_descriptor_; }
-  void set_track_event_descriptor_raw(const std::string& raw) { track_event_descriptor_ = raw; _has_field_.set(6); }
-
- private:
-  std::string name_{};
-  bool will_notify_on_stop_{};
-  bool will_notify_on_start_{};
-  bool handles_incremental_state_clear_{};
-  std::string gpu_counter_descriptor_;  // [lazy=true]
-  std::string track_event_descriptor_;  // [lazy=true]
-
-  // Allows to preserve unknown protobuf fields for compatibility
-  // with future versions of .proto files.
-  std::string unknown_fields_;
-
-  std::bitset<7> _has_field_{};
-};
-
-}  // namespace perfetto
-}  // namespace protos
-}  // namespace gen
-
-#endif  // PERFETTO_PROTOS_PROTOS_PERFETTO_COMMON_DATA_SOURCE_DESCRIPTOR_PROTO_CPP_H_
-/*
- * Copyright (C) 2017 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef INCLUDE_PERFETTO_TRACING_CORE_DATA_SOURCE_DESCRIPTOR_H_
-#define INCLUDE_PERFETTO_TRACING_CORE_DATA_SOURCE_DESCRIPTOR_H_
-
-// Creates the aliases in the ::perfetto namespace, doing things like:
-// using ::perfetto::Foo = ::perfetto::protos::gen::Foo.
-// See comments in forward_decls.h for the historical reasons of this
-// indirection layer.
-// gen_amalgamated expanded: #include "perfetto/tracing/core/forward_decls.h"
-
-// gen_amalgamated expanded: #include "protos/perfetto/common/data_source_descriptor.gen.h"
-
-#endif  // INCLUDE_PERFETTO_TRACING_CORE_DATA_SOURCE_DESCRIPTOR_H_
-// gen_amalgamated begin header: include/perfetto/tracing/core/trace_config.h
-// gen_amalgamated begin header: gen/protos/perfetto/config/trace_config.gen.h
-// DO NOT EDIT. Autogenerated by Perfetto cppgen_plugin
-#ifndef PERFETTO_PROTOS_PROTOS_PERFETTO_CONFIG_TRACE_CONFIG_PROTO_CPP_H_
-#define PERFETTO_PROTOS_PROTOS_PERFETTO_CONFIG_TRACE_CONFIG_PROTO_CPP_H_
-
-#include <stdint.h>
-#include <bitset>
-#include <vector>
-#include <string>
-#include <type_traits>
-
-// gen_amalgamated expanded: #include "perfetto/protozero/cpp_message_obj.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/copyable_ptr.h"
-// gen_amalgamated expanded: #include "perfetto/base/export.h"
-
-namespace perfetto {
-namespace protos {
-namespace gen {
-class TraceConfig;
-class TraceConfig_TraceFilter;
-class TraceConfig_IncidentReportConfig;
-class TraceConfig_IncrementalStateConfig;
-class TraceConfig_TriggerConfig;
-class TraceConfig_TriggerConfig_Trigger;
-class TraceConfig_GuardrailOverrides;
-class TraceConfig_StatsdMetadata;
-class TraceConfig_ProducerConfig;
-class TraceConfig_BuiltinDataSource;
-class TraceConfig_DataSource;
-class DataSourceConfig;
-class TestConfig;
-class TestConfig_DummyFields;
-class InterceptorConfig;
-class ChromeConfig;
-class TraceConfig_BufferConfig;
-enum TraceConfig_LockdownModeOperation : int;
-enum TraceConfig_CompressionType : int;
-enum TraceConfig_StatsdLogging : int;
-enum TraceConfig_TriggerConfig_TriggerMode : int;
-enum BuiltinClock : int;
-enum DataSourceConfig_SessionInitiator : int;
-enum ChromeConfig_ClientPriority : int;
-enum TraceConfig_BufferConfig_FillPolicy : int;
-}  // namespace perfetto
-}  // namespace protos
-}  // namespace gen
-
-namespace protozero {
-class Message;
-}  // namespace protozero
-
-namespace perfetto {
-namespace protos {
-namespace gen {
-enum TraceConfig_LockdownModeOperation : int {
-  TraceConfig_LockdownModeOperation_LOCKDOWN_UNCHANGED = 0,
-  TraceConfig_LockdownModeOperation_LOCKDOWN_CLEAR = 1,
-  TraceConfig_LockdownModeOperation_LOCKDOWN_SET = 2,
-};
-enum TraceConfig_CompressionType : int {
-  TraceConfig_CompressionType_COMPRESSION_TYPE_UNSPECIFIED = 0,
-  TraceConfig_CompressionType_COMPRESSION_TYPE_DEFLATE = 1,
-};
-enum TraceConfig_StatsdLogging : int {
-  TraceConfig_StatsdLogging_STATSD_LOGGING_UNSPECIFIED = 0,
-  TraceConfig_StatsdLogging_STATSD_LOGGING_ENABLED = 1,
-  TraceConfig_StatsdLogging_STATSD_LOGGING_DISABLED = 2,
-};
-enum TraceConfig_TriggerConfig_TriggerMode : int {
-  TraceConfig_TriggerConfig_TriggerMode_UNSPECIFIED = 0,
-  TraceConfig_TriggerConfig_TriggerMode_START_TRACING = 1,
-  TraceConfig_TriggerConfig_TriggerMode_STOP_TRACING = 2,
-};
-enum TraceConfig_BufferConfig_FillPolicy : int {
-  TraceConfig_BufferConfig_FillPolicy_UNSPECIFIED = 0,
-  TraceConfig_BufferConfig_FillPolicy_RING_BUFFER = 1,
-  TraceConfig_BufferConfig_FillPolicy_DISCARD = 2,
-};
-
-class PERFETTO_EXPORT TraceConfig : public ::protozero::CppMessageObj {
- public:
-  using BufferConfig = TraceConfig_BufferConfig;
-  using DataSource = TraceConfig_DataSource;
-  using BuiltinDataSource = TraceConfig_BuiltinDataSource;
-  using ProducerConfig = TraceConfig_ProducerConfig;
-  using StatsdMetadata = TraceConfig_StatsdMetadata;
-  using GuardrailOverrides = TraceConfig_GuardrailOverrides;
-  using TriggerConfig = TraceConfig_TriggerConfig;
-  using IncrementalStateConfig = TraceConfig_IncrementalStateConfig;
-  using IncidentReportConfig = TraceConfig_IncidentReportConfig;
-  using TraceFilter = TraceConfig_TraceFilter;
-  using LockdownModeOperation = TraceConfig_LockdownModeOperation;
-  static constexpr auto LOCKDOWN_UNCHANGED = TraceConfig_LockdownModeOperation_LOCKDOWN_UNCHANGED;
-  static constexpr auto LOCKDOWN_CLEAR = TraceConfig_LockdownModeOperation_LOCKDOWN_CLEAR;
-  static constexpr auto LOCKDOWN_SET = TraceConfig_LockdownModeOperation_LOCKDOWN_SET;
-  static constexpr auto LockdownModeOperation_MIN = TraceConfig_LockdownModeOperation_LOCKDOWN_UNCHANGED;
-  static constexpr auto LockdownModeOperation_MAX = TraceConfig_LockdownModeOperation_LOCKDOWN_SET;
-  using CompressionType = TraceConfig_CompressionType;
-  static constexpr auto COMPRESSION_TYPE_UNSPECIFIED = TraceConfig_CompressionType_COMPRESSION_TYPE_UNSPECIFIED;
-  static constexpr auto COMPRESSION_TYPE_DEFLATE = TraceConfig_CompressionType_COMPRESSION_TYPE_DEFLATE;
-  static constexpr auto CompressionType_MIN = TraceConfig_CompressionType_COMPRESSION_TYPE_UNSPECIFIED;
-  static constexpr auto CompressionType_MAX = TraceConfig_CompressionType_COMPRESSION_TYPE_DEFLATE;
-  using StatsdLogging = TraceConfig_StatsdLogging;
-  static constexpr auto STATSD_LOGGING_UNSPECIFIED = TraceConfig_StatsdLogging_STATSD_LOGGING_UNSPECIFIED;
-  static constexpr auto STATSD_LOGGING_ENABLED = TraceConfig_StatsdLogging_STATSD_LOGGING_ENABLED;
-  static constexpr auto STATSD_LOGGING_DISABLED = TraceConfig_StatsdLogging_STATSD_LOGGING_DISABLED;
-  static constexpr auto StatsdLogging_MIN = TraceConfig_StatsdLogging_STATSD_LOGGING_UNSPECIFIED;
-  static constexpr auto StatsdLogging_MAX = TraceConfig_StatsdLogging_STATSD_LOGGING_DISABLED;
-  enum FieldNumbers {
-    kBuffersFieldNumber = 1,
-    kDataSourcesFieldNumber = 2,
-    kBuiltinDataSourcesFieldNumber = 20,
-    kDurationMsFieldNumber = 3,
-    kEnableExtraGuardrailsFieldNumber = 4,
-    kLockdownModeFieldNumber = 5,
-    kProducersFieldNumber = 6,
-    kStatsdMetadataFieldNumber = 7,
-    kWriteIntoFileFieldNumber = 8,
-    kOutputPathFieldNumber = 29,
-    kFileWritePeriodMsFieldNumber = 9,
-    kMaxFileSizeBytesFieldNumber = 10,
-    kGuardrailOverridesFieldNumber = 11,
-    kDeferredStartFieldNumber = 12,
-    kFlushPeriodMsFieldNumber = 13,
-    kFlushTimeoutMsFieldNumber = 14,
-    kDataSourceStopTimeoutMsFieldNumber = 23,
-    kNotifyTraceurFieldNumber = 16,
-    kBugreportScoreFieldNumber = 30,
-    kTriggerConfigFieldNumber = 17,
-    kActivateTriggersFieldNumber = 18,
-    kIncrementalStateConfigFieldNumber = 21,
-    kAllowUserBuildTracingFieldNumber = 19,
-    kUniqueSessionNameFieldNumber = 22,
-    kCompressionTypeFieldNumber = 24,
-    kIncidentReportConfigFieldNumber = 25,
-    kStatsdLoggingFieldNumber = 31,
-    kTraceUuidMsbFieldNumber = 27,
-    kTraceUuidLsbFieldNumber = 28,
-    kTraceFilterFieldNumber = 32,
-  };
-
-  TraceConfig();
-  ~TraceConfig() override;
-  TraceConfig(TraceConfig&&) noexcept;
-  TraceConfig& operator=(TraceConfig&&);
-  TraceConfig(const TraceConfig&);
-  TraceConfig& operator=(const TraceConfig&);
-  bool operator==(const TraceConfig&) const;
-  bool operator!=(const TraceConfig& other) const { return !(*this == other); }
-
-  bool ParseFromArray(const void*, size_t) override;
-  std::string SerializeAsString() const override;
-  std::vector<uint8_t> SerializeAsArray() const override;
-  void Serialize(::protozero::Message*) const;
-
-  const std::vector<TraceConfig_BufferConfig>& buffers() const { return buffers_; }
-  std::vector<TraceConfig_BufferConfig>* mutable_buffers() { return &buffers_; }
-  int buffers_size() const;
-  void clear_buffers();
-  TraceConfig_BufferConfig* add_buffers();
-
-  const std::vector<TraceConfig_DataSource>& data_sources() const { return data_sources_; }
-  std::vector<TraceConfig_DataSource>* mutable_data_sources() { return &data_sources_; }
-  int data_sources_size() const;
-  void clear_data_sources();
-  TraceConfig_DataSource* add_data_sources();
-
-  bool has_builtin_data_sources() const { return _has_field_[20]; }
-  const TraceConfig_BuiltinDataSource& builtin_data_sources() const { return *builtin_data_sources_; }
-  TraceConfig_BuiltinDataSource* mutable_builtin_data_sources() { _has_field_.set(20); return builtin_data_sources_.get(); }
-
-  bool has_duration_ms() const { return _has_field_[3]; }
-  uint32_t duration_ms() const { return duration_ms_; }
-  void set_duration_ms(uint32_t value) { duration_ms_ = value; _has_field_.set(3); }
-
-  bool has_enable_extra_guardrails() const { return _has_field_[4]; }
-  bool enable_extra_guardrails() const { return enable_extra_guardrails_; }
-  void set_enable_extra_guardrails(bool value) { enable_extra_guardrails_ = value; _has_field_.set(4); }
-
-  bool has_lockdown_mode() const { return _has_field_[5]; }
-  TraceConfig_LockdownModeOperation lockdown_mode() const { return lockdown_mode_; }
-  void set_lockdown_mode(TraceConfig_LockdownModeOperation value) { lockdown_mode_ = value; _has_field_.set(5); }
-
-  const std::vector<TraceConfig_ProducerConfig>& producers() const { return producers_; }
-  std::vector<TraceConfig_ProducerConfig>* mutable_producers() { return &producers_; }
-  int producers_size() const;
-  void clear_producers();
-  TraceConfig_ProducerConfig* add_producers();
-
-  bool has_statsd_metadata() const { return _has_field_[7]; }
-  const TraceConfig_StatsdMetadata& statsd_metadata() const { return *statsd_metadata_; }
-  TraceConfig_StatsdMetadata* mutable_statsd_metadata() { _has_field_.set(7); return statsd_metadata_.get(); }
-
-  bool has_write_into_file() const { return _has_field_[8]; }
-  bool write_into_file() const { return write_into_file_; }
-  void set_write_into_file(bool value) { write_into_file_ = value; _has_field_.set(8); }
-
-  bool has_output_path() const { return _has_field_[29]; }
-  const std::string& output_path() const { return output_path_; }
-  void set_output_path(const std::string& value) { output_path_ = value; _has_field_.set(29); }
-
-  bool has_file_write_period_ms() const { return _has_field_[9]; }
-  uint32_t file_write_period_ms() const { return file_write_period_ms_; }
-  void set_file_write_period_ms(uint32_t value) { file_write_period_ms_ = value; _has_field_.set(9); }
-
-  bool has_max_file_size_bytes() const { return _has_field_[10]; }
-  uint64_t max_file_size_bytes() const { return max_file_size_bytes_; }
-  void set_max_file_size_bytes(uint64_t value) { max_file_size_bytes_ = value; _has_field_.set(10); }
-
-  bool has_guardrail_overrides() const { return _has_field_[11]; }
-  const TraceConfig_GuardrailOverrides& guardrail_overrides() const { return *guardrail_overrides_; }
-  TraceConfig_GuardrailOverrides* mutable_guardrail_overrides() { _has_field_.set(11); return guardrail_overrides_.get(); }
-
-  bool has_deferred_start() const { return _has_field_[12]; }
-  bool deferred_start() const { return deferred_start_; }
-  void set_deferred_start(bool value) { deferred_start_ = value; _has_field_.set(12); }
-
-  bool has_flush_period_ms() const { return _has_field_[13]; }
-  uint32_t flush_period_ms() const { return flush_period_ms_; }
-  void set_flush_period_ms(uint32_t value) { flush_period_ms_ = value; _has_field_.set(13); }
-
-  bool has_flush_timeout_ms() const { return _has_field_[14]; }
-  uint32_t flush_timeout_ms() const { return flush_timeout_ms_; }
-  void set_flush_timeout_ms(uint32_t value) { flush_timeout_ms_ = value; _has_field_.set(14); }
-
-  bool has_data_source_stop_timeout_ms() const { return _has_field_[23]; }
-  uint32_t data_source_stop_timeout_ms() const { return data_source_stop_timeout_ms_; }
-  void set_data_source_stop_timeout_ms(uint32_t value) { data_source_stop_timeout_ms_ = value; _has_field_.set(23); }
-
-  bool has_notify_traceur() const { return _has_field_[16]; }
-  bool notify_traceur() const { return notify_traceur_; }
-  void set_notify_traceur(bool value) { notify_traceur_ = value; _has_field_.set(16); }
-
-  bool has_bugreport_score() const { return _has_field_[30]; }
-  int32_t bugreport_score() const { return bugreport_score_; }
-  void set_bugreport_score(int32_t value) { bugreport_score_ = value; _has_field_.set(30); }
-
-  bool has_trigger_config() const { return _has_field_[17]; }
-  const TraceConfig_TriggerConfig& trigger_config() const { return *trigger_config_; }
-  TraceConfig_TriggerConfig* mutable_trigger_config() { _has_field_.set(17); return trigger_config_.get(); }
-
-  const std::vector<std::string>& activate_triggers() const { return activate_triggers_; }
-  std::vector<std::string>* mutable_activate_triggers() { return &activate_triggers_; }
-  int activate_triggers_size() const { return static_cast<int>(activate_triggers_.size()); }
-  void clear_activate_triggers() { activate_triggers_.clear(); }
-  void add_activate_triggers(std::string value) { activate_triggers_.emplace_back(value); }
-  std::string* add_activate_triggers() { activate_triggers_.emplace_back(); return &activate_triggers_.back(); }
-
-  bool has_incremental_state_config() const { return _has_field_[21]; }
-  const TraceConfig_IncrementalStateConfig& incremental_state_config() const { return *incremental_state_config_; }
-  TraceConfig_IncrementalStateConfig* mutable_incremental_state_config() { _has_field_.set(21); return incremental_state_config_.get(); }
-
-  bool has_allow_user_build_tracing() const { return _has_field_[19]; }
-  bool allow_user_build_tracing() const { return allow_user_build_tracing_; }
-  void set_allow_user_build_tracing(bool value) { allow_user_build_tracing_ = value; _has_field_.set(19); }
-
-  bool has_unique_session_name() const { return _has_field_[22]; }
-  const std::string& unique_session_name() const { return unique_session_name_; }
-  void set_unique_session_name(const std::string& value) { unique_session_name_ = value; _has_field_.set(22); }
-
-  bool has_compression_type() const { return _has_field_[24]; }
-  TraceConfig_CompressionType compression_type() const { return compression_type_; }
-  void set_compression_type(TraceConfig_CompressionType value) { compression_type_ = value; _has_field_.set(24); }
-
-  bool has_incident_report_config() const { return _has_field_[25]; }
-  const TraceConfig_IncidentReportConfig& incident_report_config() const { return *incident_report_config_; }
-  TraceConfig_IncidentReportConfig* mutable_incident_report_config() { _has_field_.set(25); return incident_report_config_.get(); }
-
-  bool has_statsd_logging() const { return _has_field_[31]; }
-  TraceConfig_StatsdLogging statsd_logging() const { return statsd_logging_; }
-  void set_statsd_logging(TraceConfig_StatsdLogging value) { statsd_logging_ = value; _has_field_.set(31); }
-
-  bool has_trace_uuid_msb() const { return _has_field_[27]; }
-  int64_t trace_uuid_msb() const { return trace_uuid_msb_; }
-  void set_trace_uuid_msb(int64_t value) { trace_uuid_msb_ = value; _has_field_.set(27); }
-
-  bool has_trace_uuid_lsb() const { return _has_field_[28]; }
-  int64_t trace_uuid_lsb() const { return trace_uuid_lsb_; }
-  void set_trace_uuid_lsb(int64_t value) { trace_uuid_lsb_ = value; _has_field_.set(28); }
-
-  bool has_trace_filter() const { return _has_field_[32]; }
-  const TraceConfig_TraceFilter& trace_filter() const { return *trace_filter_; }
-  TraceConfig_TraceFilter* mutable_trace_filter() { _has_field_.set(32); return trace_filter_.get(); }
-
- private:
-  std::vector<TraceConfig_BufferConfig> buffers_;
-  std::vector<TraceConfig_DataSource> data_sources_;
-  ::protozero::CopyablePtr<TraceConfig_BuiltinDataSource> builtin_data_sources_;
-  uint32_t duration_ms_{};
-  bool enable_extra_guardrails_{};
-  TraceConfig_LockdownModeOperation lockdown_mode_{};
-  std::vector<TraceConfig_ProducerConfig> producers_;
-  ::protozero::CopyablePtr<TraceConfig_StatsdMetadata> statsd_metadata_;
-  bool write_into_file_{};
-  std::string output_path_{};
-  uint32_t file_write_period_ms_{};
-  uint64_t max_file_size_bytes_{};
-  ::protozero::CopyablePtr<TraceConfig_GuardrailOverrides> guardrail_overrides_;
-  bool deferred_start_{};
-  uint32_t flush_period_ms_{};
-  uint32_t flush_timeout_ms_{};
-  uint32_t data_source_stop_timeout_ms_{};
-  bool notify_traceur_{};
-  int32_t bugreport_score_{};
-  ::protozero::CopyablePtr<TraceConfig_TriggerConfig> trigger_config_;
-  std::vector<std::string> activate_triggers_;
-  ::protozero::CopyablePtr<TraceConfig_IncrementalStateConfig> incremental_state_config_;
-  bool allow_user_build_tracing_{};
-  std::string unique_session_name_{};
-  TraceConfig_CompressionType compression_type_{};
-  ::protozero::CopyablePtr<TraceConfig_IncidentReportConfig> incident_report_config_;
-  TraceConfig_StatsdLogging statsd_logging_{};
-  int64_t trace_uuid_msb_{};
-  int64_t trace_uuid_lsb_{};
-  ::protozero::CopyablePtr<TraceConfig_TraceFilter> trace_filter_;
-
-  // Allows to preserve unknown protobuf fields for compatibility
-  // with future versions of .proto files.
-  std::string unknown_fields_;
-
-  std::bitset<33> _has_field_{};
-};
-
-
-class PERFETTO_EXPORT TraceConfig_TraceFilter : public ::protozero::CppMessageObj {
- public:
-  enum FieldNumbers {
-    kBytecodeFieldNumber = 1,
-  };
-
-  TraceConfig_TraceFilter();
-  ~TraceConfig_TraceFilter() override;
-  TraceConfig_TraceFilter(TraceConfig_TraceFilter&&) noexcept;
-  TraceConfig_TraceFilter& operator=(TraceConfig_TraceFilter&&);
-  TraceConfig_TraceFilter(const TraceConfig_TraceFilter&);
-  TraceConfig_TraceFilter& operator=(const TraceConfig_TraceFilter&);
-  bool operator==(const TraceConfig_TraceFilter&) const;
-  bool operator!=(const TraceConfig_TraceFilter& other) const { return !(*this == other); }
-
-  bool ParseFromArray(const void*, size_t) override;
-  std::string SerializeAsString() const override;
-  std::vector<uint8_t> SerializeAsArray() const override;
-  void Serialize(::protozero::Message*) const;
-
-  bool has_bytecode() const { return _has_field_[1]; }
-  const std::string& bytecode() const { return bytecode_; }
-  void set_bytecode(const std::string& value) { bytecode_ = value; _has_field_.set(1); }
-  void set_bytecode(const void* p, size_t s) { bytecode_.assign(reinterpret_cast<const char*>(p), s); _has_field_.set(1); }
-
- private:
-  std::string bytecode_{};
-
-  // Allows to preserve unknown protobuf fields for compatibility
-  // with future versions of .proto files.
-  std::string unknown_fields_;
-
-  std::bitset<2> _has_field_{};
-};
-
-
-class PERFETTO_EXPORT TraceConfig_IncidentReportConfig : public ::protozero::CppMessageObj {
- public:
-  enum FieldNumbers {
-    kDestinationPackageFieldNumber = 1,
-    kDestinationClassFieldNumber = 2,
-    kPrivacyLevelFieldNumber = 3,
-    kSkipIncidentdFieldNumber = 5,
-    kSkipDropboxFieldNumber = 4,
-  };
-
-  TraceConfig_IncidentReportConfig();
-  ~TraceConfig_IncidentReportConfig() override;
-  TraceConfig_IncidentReportConfig(TraceConfig_IncidentReportConfig&&) noexcept;
-  TraceConfig_IncidentReportConfig& operator=(TraceConfig_IncidentReportConfig&&);
-  TraceConfig_IncidentReportConfig(const TraceConfig_IncidentReportConfig&);
-  TraceConfig_IncidentReportConfig& operator=(const TraceConfig_IncidentReportConfig&);
-  bool operator==(const TraceConfig_IncidentReportConfig&) const;
-  bool operator!=(const TraceConfig_IncidentReportConfig& other) const { return !(*this == other); }
-
-  bool ParseFromArray(const void*, size_t) override;
-  std::string SerializeAsString() const override;
-  std::vector<uint8_t> SerializeAsArray() const override;
-  void Serialize(::protozero::Message*) const;
-
-  bool has_destination_package() const { return _has_field_[1]; }
-  const std::string& destination_package() const { return destination_package_; }
-  void set_destination_package(const std::string& value) { destination_package_ = value; _has_field_.set(1); }
-
-  bool has_destination_class() const { return _has_field_[2]; }
-  const std::string& destination_class() const { return destination_class_; }
-  void set_destination_class(const std::string& value) { destination_class_ = value; _has_field_.set(2); }
-
-  bool has_privacy_level() const { return _has_field_[3]; }
-  int32_t privacy_level() const { return privacy_level_; }
-  void set_privacy_level(int32_t value) { privacy_level_ = value; _has_field_.set(3); }
-
-  bool has_skip_incidentd() const { return _has_field_[5]; }
-  bool skip_incidentd() const { return skip_incidentd_; }
-  void set_skip_incidentd(bool value) { skip_incidentd_ = value; _has_field_.set(5); }
-
-  bool has_skip_dropbox() const { return _has_field_[4]; }
-  bool skip_dropbox() const { return skip_dropbox_; }
-  void set_skip_dropbox(bool value) { skip_dropbox_ = value; _has_field_.set(4); }
-
- private:
-  std::string destination_package_{};
-  std::string destination_class_{};
-  int32_t privacy_level_{};
-  bool skip_incidentd_{};
-  bool skip_dropbox_{};
-
-  // Allows to preserve unknown protobuf fields for compatibility
-  // with future versions of .proto files.
-  std::string unknown_fields_;
-
-  std::bitset<6> _has_field_{};
-};
-
-
-class PERFETTO_EXPORT TraceConfig_IncrementalStateConfig : public ::protozero::CppMessageObj {
- public:
-  enum FieldNumbers {
-    kClearPeriodMsFieldNumber = 1,
-  };
-
-  TraceConfig_IncrementalStateConfig();
-  ~TraceConfig_IncrementalStateConfig() override;
-  TraceConfig_IncrementalStateConfig(TraceConfig_IncrementalStateConfig&&) noexcept;
-  TraceConfig_IncrementalStateConfig& operator=(TraceConfig_IncrementalStateConfig&&);
-  TraceConfig_IncrementalStateConfig(const TraceConfig_IncrementalStateConfig&);
-  TraceConfig_IncrementalStateConfig& operator=(const TraceConfig_IncrementalStateConfig&);
-  bool operator==(const TraceConfig_IncrementalStateConfig&) const;
-  bool operator!=(const TraceConfig_IncrementalStateConfig& other) const { return !(*this == other); }
-
-  bool ParseFromArray(const void*, size_t) override;
-  std::string SerializeAsString() const override;
-  std::vector<uint8_t> SerializeAsArray() const override;
-  void Serialize(::protozero::Message*) const;
-
-  bool has_clear_period_ms() const { return _has_field_[1]; }
-  uint32_t clear_period_ms() const { return clear_period_ms_; }
-  void set_clear_period_ms(uint32_t value) { clear_period_ms_ = value; _has_field_.set(1); }
-
- private:
-  uint32_t clear_period_ms_{};
-
-  // Allows to preserve unknown protobuf fields for compatibility
-  // with future versions of .proto files.
-  std::string unknown_fields_;
-
-  std::bitset<2> _has_field_{};
-};
-
-
-class PERFETTO_EXPORT TraceConfig_TriggerConfig : public ::protozero::CppMessageObj {
- public:
-  using Trigger = TraceConfig_TriggerConfig_Trigger;
-  using TriggerMode = TraceConfig_TriggerConfig_TriggerMode;
-  static constexpr auto UNSPECIFIED = TraceConfig_TriggerConfig_TriggerMode_UNSPECIFIED;
-  static constexpr auto START_TRACING = TraceConfig_TriggerConfig_TriggerMode_START_TRACING;
-  static constexpr auto STOP_TRACING = TraceConfig_TriggerConfig_TriggerMode_STOP_TRACING;
-  static constexpr auto TriggerMode_MIN = TraceConfig_TriggerConfig_TriggerMode_UNSPECIFIED;
-  static constexpr auto TriggerMode_MAX = TraceConfig_TriggerConfig_TriggerMode_STOP_TRACING;
-  enum FieldNumbers {
-    kTriggerModeFieldNumber = 1,
-    kTriggersFieldNumber = 2,
-    kTriggerTimeoutMsFieldNumber = 3,
-  };
-
-  TraceConfig_TriggerConfig();
-  ~TraceConfig_TriggerConfig() override;
-  TraceConfig_TriggerConfig(TraceConfig_TriggerConfig&&) noexcept;
-  TraceConfig_TriggerConfig& operator=(TraceConfig_TriggerConfig&&);
-  TraceConfig_TriggerConfig(const TraceConfig_TriggerConfig&);
-  TraceConfig_TriggerConfig& operator=(const TraceConfig_TriggerConfig&);
-  bool operator==(const TraceConfig_TriggerConfig&) const;
-  bool operator!=(const TraceConfig_TriggerConfig& other) const { return !(*this == other); }
-
-  bool ParseFromArray(const void*, size_t) override;
-  std::string SerializeAsString() const override;
-  std::vector<uint8_t> SerializeAsArray() const override;
-  void Serialize(::protozero::Message*) const;
-
-  bool has_trigger_mode() const { return _has_field_[1]; }
-  TraceConfig_TriggerConfig_TriggerMode trigger_mode() const { return trigger_mode_; }
-  void set_trigger_mode(TraceConfig_TriggerConfig_TriggerMode value) { trigger_mode_ = value; _has_field_.set(1); }
-
-  const std::vector<TraceConfig_TriggerConfig_Trigger>& triggers() const { return triggers_; }
-  std::vector<TraceConfig_TriggerConfig_Trigger>* mutable_triggers() { return &triggers_; }
-  int triggers_size() const;
-  void clear_triggers();
-  TraceConfig_TriggerConfig_Trigger* add_triggers();
-
-  bool has_trigger_timeout_ms() const { return _has_field_[3]; }
-  uint32_t trigger_timeout_ms() const { return trigger_timeout_ms_; }
-  void set_trigger_timeout_ms(uint32_t value) { trigger_timeout_ms_ = value; _has_field_.set(3); }
-
- private:
-  TraceConfig_TriggerConfig_TriggerMode trigger_mode_{};
-  std::vector<TraceConfig_TriggerConfig_Trigger> triggers_;
-  uint32_t trigger_timeout_ms_{};
-
-  // Allows to preserve unknown protobuf fields for compatibility
-  // with future versions of .proto files.
-  std::string unknown_fields_;
-
-  std::bitset<4> _has_field_{};
-};
-
-
-class PERFETTO_EXPORT TraceConfig_TriggerConfig_Trigger : public ::protozero::CppMessageObj {
- public:
-  enum FieldNumbers {
-    kNameFieldNumber = 1,
-    kProducerNameRegexFieldNumber = 2,
-    kStopDelayMsFieldNumber = 3,
-    kMaxPer24HFieldNumber = 4,
-    kSkipProbabilityFieldNumber = 5,
-  };
-
-  TraceConfig_TriggerConfig_Trigger();
-  ~TraceConfig_TriggerConfig_Trigger() override;
-  TraceConfig_TriggerConfig_Trigger(TraceConfig_TriggerConfig_Trigger&&) noexcept;
-  TraceConfig_TriggerConfig_Trigger& operator=(TraceConfig_TriggerConfig_Trigger&&);
-  TraceConfig_TriggerConfig_Trigger(const TraceConfig_TriggerConfig_Trigger&);
-  TraceConfig_TriggerConfig_Trigger& operator=(const TraceConfig_TriggerConfig_Trigger&);
-  bool operator==(const TraceConfig_TriggerConfig_Trigger&) const;
-  bool operator!=(const TraceConfig_TriggerConfig_Trigger& other) const { return !(*this == other); }
-
-  bool ParseFromArray(const void*, size_t) override;
-  std::string SerializeAsString() const override;
-  std::vector<uint8_t> SerializeAsArray() const override;
-  void Serialize(::protozero::Message*) const;
-
-  bool has_name() const { return _has_field_[1]; }
-  const std::string& name() const { return name_; }
-  void set_name(const std::string& value) { name_ = value; _has_field_.set(1); }
-
-  bool has_producer_name_regex() const { return _has_field_[2]; }
-  const std::string& producer_name_regex() const { return producer_name_regex_; }
-  void set_producer_name_regex(const std::string& value) { producer_name_regex_ = value; _has_field_.set(2); }
-
-  bool has_stop_delay_ms() const { return _has_field_[3]; }
-  uint32_t stop_delay_ms() const { return stop_delay_ms_; }
-  void set_stop_delay_ms(uint32_t value) { stop_delay_ms_ = value; _has_field_.set(3); }
-
-  bool has_max_per_24_h() const { return _has_field_[4]; }
-  uint32_t max_per_24_h() const { return max_per_24_h_; }
-  void set_max_per_24_h(uint32_t value) { max_per_24_h_ = value; _has_field_.set(4); }
-
-  bool has_skip_probability() const { return _has_field_[5]; }
-  double skip_probability() const { return skip_probability_; }
-  void set_skip_probability(double value) { skip_probability_ = value; _has_field_.set(5); }
-
- private:
-  std::string name_{};
-  std::string producer_name_regex_{};
-  uint32_t stop_delay_ms_{};
-  uint32_t max_per_24_h_{};
-  double skip_probability_{};
-
-  // Allows to preserve unknown protobuf fields for compatibility
-  // with future versions of .proto files.
-  std::string unknown_fields_;
-
-  std::bitset<6> _has_field_{};
-};
-
-
-class PERFETTO_EXPORT TraceConfig_GuardrailOverrides : public ::protozero::CppMessageObj {
- public:
-  enum FieldNumbers {
-    kMaxUploadPerDayBytesFieldNumber = 1,
-  };
-
-  TraceConfig_GuardrailOverrides();
-  ~TraceConfig_GuardrailOverrides() override;
-  TraceConfig_GuardrailOverrides(TraceConfig_GuardrailOverrides&&) noexcept;
-  TraceConfig_GuardrailOverrides& operator=(TraceConfig_GuardrailOverrides&&);
-  TraceConfig_GuardrailOverrides(const TraceConfig_GuardrailOverrides&);
-  TraceConfig_GuardrailOverrides& operator=(const TraceConfig_GuardrailOverrides&);
-  bool operator==(const TraceConfig_GuardrailOverrides&) const;
-  bool operator!=(const TraceConfig_GuardrailOverrides& other) const { return !(*this == other); }
-
-  bool ParseFromArray(const void*, size_t) override;
-  std::string SerializeAsString() const override;
-  std::vector<uint8_t> SerializeAsArray() const override;
-  void Serialize(::protozero::Message*) const;
-
-  bool has_max_upload_per_day_bytes() const { return _has_field_[1]; }
-  uint64_t max_upload_per_day_bytes() const { return max_upload_per_day_bytes_; }
-  void set_max_upload_per_day_bytes(uint64_t value) { max_upload_per_day_bytes_ = value; _has_field_.set(1); }
-
- private:
-  uint64_t max_upload_per_day_bytes_{};
-
-  // Allows to preserve unknown protobuf fields for compatibility
-  // with future versions of .proto files.
-  std::string unknown_fields_;
-
-  std::bitset<2> _has_field_{};
-};
-
-
-class PERFETTO_EXPORT TraceConfig_StatsdMetadata : public ::protozero::CppMessageObj {
- public:
-  enum FieldNumbers {
-    kTriggeringAlertIdFieldNumber = 1,
-    kTriggeringConfigUidFieldNumber = 2,
-    kTriggeringConfigIdFieldNumber = 3,
-    kTriggeringSubscriptionIdFieldNumber = 4,
-  };
-
-  TraceConfig_StatsdMetadata();
-  ~TraceConfig_StatsdMetadata() override;
-  TraceConfig_StatsdMetadata(TraceConfig_StatsdMetadata&&) noexcept;
-  TraceConfig_StatsdMetadata& operator=(TraceConfig_StatsdMetadata&&);
-  TraceConfig_StatsdMetadata(const TraceConfig_StatsdMetadata&);
-  TraceConfig_StatsdMetadata& operator=(const TraceConfig_StatsdMetadata&);
-  bool operator==(const TraceConfig_StatsdMetadata&) const;
-  bool operator!=(const TraceConfig_StatsdMetadata& other) const { return !(*this == other); }
-
-  bool ParseFromArray(const void*, size_t) override;
-  std::string SerializeAsString() const override;
-  std::vector<uint8_t> SerializeAsArray() const override;
-  void Serialize(::protozero::Message*) const;
-
-  bool has_triggering_alert_id() const { return _has_field_[1]; }
-  int64_t triggering_alert_id() const { return triggering_alert_id_; }
-  void set_triggering_alert_id(int64_t value) { triggering_alert_id_ = value; _has_field_.set(1); }
-
-  bool has_triggering_config_uid() const { return _has_field_[2]; }
-  int32_t triggering_config_uid() const { return triggering_config_uid_; }
-  void set_triggering_config_uid(int32_t value) { triggering_config_uid_ = value; _has_field_.set(2); }
-
-  bool has_triggering_config_id() const { return _has_field_[3]; }
-  int64_t triggering_config_id() const { return triggering_config_id_; }
-  void set_triggering_config_id(int64_t value) { triggering_config_id_ = value; _has_field_.set(3); }
-
-  bool has_triggering_subscription_id() const { return _has_field_[4]; }
-  int64_t triggering_subscription_id() const { return triggering_subscription_id_; }
-  void set_triggering_subscription_id(int64_t value) { triggering_subscription_id_ = value; _has_field_.set(4); }
-
- private:
-  int64_t triggering_alert_id_{};
-  int32_t triggering_config_uid_{};
-  int64_t triggering_config_id_{};
-  int64_t triggering_subscription_id_{};
-
-  // Allows to preserve unknown protobuf fields for compatibility
-  // with future versions of .proto files.
-  std::string unknown_fields_;
-
-  std::bitset<5> _has_field_{};
-};
-
-
-class PERFETTO_EXPORT TraceConfig_ProducerConfig : public ::protozero::CppMessageObj {
- public:
-  enum FieldNumbers {
-    kProducerNameFieldNumber = 1,
-    kShmSizeKbFieldNumber = 2,
-    kPageSizeKbFieldNumber = 3,
-  };
-
-  TraceConfig_ProducerConfig();
-  ~TraceConfig_ProducerConfig() override;
-  TraceConfig_ProducerConfig(TraceConfig_ProducerConfig&&) noexcept;
-  TraceConfig_ProducerConfig& operator=(TraceConfig_ProducerConfig&&);
-  TraceConfig_ProducerConfig(const TraceConfig_ProducerConfig&);
-  TraceConfig_ProducerConfig& operator=(const TraceConfig_ProducerConfig&);
-  bool operator==(const TraceConfig_ProducerConfig&) const;
-  bool operator!=(const TraceConfig_ProducerConfig& other) const { return !(*this == other); }
-
-  bool ParseFromArray(const void*, size_t) override;
-  std::string SerializeAsString() const override;
-  std::vector<uint8_t> SerializeAsArray() const override;
-  void Serialize(::protozero::Message*) const;
-
-  bool has_producer_name() const { return _has_field_[1]; }
-  const std::string& producer_name() const { return producer_name_; }
-  void set_producer_name(const std::string& value) { producer_name_ = value; _has_field_.set(1); }
-
-  bool has_shm_size_kb() const { return _has_field_[2]; }
-  uint32_t shm_size_kb() const { return shm_size_kb_; }
-  void set_shm_size_kb(uint32_t value) { shm_size_kb_ = value; _has_field_.set(2); }
-
-  bool has_page_size_kb() const { return _has_field_[3]; }
-  uint32_t page_size_kb() const { return page_size_kb_; }
-  void set_page_size_kb(uint32_t value) { page_size_kb_ = value; _has_field_.set(3); }
-
- private:
-  std::string producer_name_{};
-  uint32_t shm_size_kb_{};
-  uint32_t page_size_kb_{};
-
-  // Allows to preserve unknown protobuf fields for compatibility
-  // with future versions of .proto files.
-  std::string unknown_fields_;
-
-  std::bitset<4> _has_field_{};
-};
-
-
-class PERFETTO_EXPORT TraceConfig_BuiltinDataSource : public ::protozero::CppMessageObj {
- public:
-  enum FieldNumbers {
-    kDisableClockSnapshottingFieldNumber = 1,
-    kDisableTraceConfigFieldNumber = 2,
-    kDisableSystemInfoFieldNumber = 3,
-    kDisableServiceEventsFieldNumber = 4,
-    kPrimaryTraceClockFieldNumber = 5,
-    kSnapshotIntervalMsFieldNumber = 6,
-    kPreferSuspendClockForSnapshotFieldNumber = 7,
-  };
-
-  TraceConfig_BuiltinDataSource();
-  ~TraceConfig_BuiltinDataSource() override;
-  TraceConfig_BuiltinDataSource(TraceConfig_BuiltinDataSource&&) noexcept;
-  TraceConfig_BuiltinDataSource& operator=(TraceConfig_BuiltinDataSource&&);
-  TraceConfig_BuiltinDataSource(const TraceConfig_BuiltinDataSource&);
-  TraceConfig_BuiltinDataSource& operator=(const TraceConfig_BuiltinDataSource&);
-  bool operator==(const TraceConfig_BuiltinDataSource&) const;
-  bool operator!=(const TraceConfig_BuiltinDataSource& other) const { return !(*this == other); }
-
-  bool ParseFromArray(const void*, size_t) override;
-  std::string SerializeAsString() const override;
-  std::vector<uint8_t> SerializeAsArray() const override;
-  void Serialize(::protozero::Message*) const;
-
-  bool has_disable_clock_snapshotting() const { return _has_field_[1]; }
-  bool disable_clock_snapshotting() const { return disable_clock_snapshotting_; }
-  void set_disable_clock_snapshotting(bool value) { disable_clock_snapshotting_ = value; _has_field_.set(1); }
-
-  bool has_disable_trace_config() const { return _has_field_[2]; }
-  bool disable_trace_config() const { return disable_trace_config_; }
-  void set_disable_trace_config(bool value) { disable_trace_config_ = value; _has_field_.set(2); }
-
-  bool has_disable_system_info() const { return _has_field_[3]; }
-  bool disable_system_info() const { return disable_system_info_; }
-  void set_disable_system_info(bool value) { disable_system_info_ = value; _has_field_.set(3); }
-
-  bool has_disable_service_events() const { return _has_field_[4]; }
-  bool disable_service_events() const { return disable_service_events_; }
-  void set_disable_service_events(bool value) { disable_service_events_ = value; _has_field_.set(4); }
-
-  bool has_primary_trace_clock() const { return _has_field_[5]; }
-  BuiltinClock primary_trace_clock() const { return primary_trace_clock_; }
-  void set_primary_trace_clock(BuiltinClock value) { primary_trace_clock_ = value; _has_field_.set(5); }
-
-  bool has_snapshot_interval_ms() const { return _has_field_[6]; }
-  uint32_t snapshot_interval_ms() const { return snapshot_interval_ms_; }
-  void set_snapshot_interval_ms(uint32_t value) { snapshot_interval_ms_ = value; _has_field_.set(6); }
-
-  bool has_prefer_suspend_clock_for_snapshot() const { return _has_field_[7]; }
-  bool prefer_suspend_clock_for_snapshot() const { return prefer_suspend_clock_for_snapshot_; }
-  void set_prefer_suspend_clock_for_snapshot(bool value) { prefer_suspend_clock_for_snapshot_ = value; _has_field_.set(7); }
-
- private:
-  bool disable_clock_snapshotting_{};
-  bool disable_trace_config_{};
-  bool disable_system_info_{};
-  bool disable_service_events_{};
-  BuiltinClock primary_trace_clock_{};
-  uint32_t snapshot_interval_ms_{};
-  bool prefer_suspend_clock_for_snapshot_{};
-
-  // Allows to preserve unknown protobuf fields for compatibility
-  // with future versions of .proto files.
-  std::string unknown_fields_;
-
-  std::bitset<8> _has_field_{};
-};
-
-
-class PERFETTO_EXPORT TraceConfig_DataSource : public ::protozero::CppMessageObj {
- public:
-  enum FieldNumbers {
-    kConfigFieldNumber = 1,
-    kProducerNameFilterFieldNumber = 2,
-    kProducerNameRegexFilterFieldNumber = 3,
-  };
-
-  TraceConfig_DataSource();
-  ~TraceConfig_DataSource() override;
-  TraceConfig_DataSource(TraceConfig_DataSource&&) noexcept;
-  TraceConfig_DataSource& operator=(TraceConfig_DataSource&&);
-  TraceConfig_DataSource(const TraceConfig_DataSource&);
-  TraceConfig_DataSource& operator=(const TraceConfig_DataSource&);
-  bool operator==(const TraceConfig_DataSource&) const;
-  bool operator!=(const TraceConfig_DataSource& other) const { return !(*this == other); }
-
-  bool ParseFromArray(const void*, size_t) override;
-  std::string SerializeAsString() const override;
-  std::vector<uint8_t> SerializeAsArray() const override;
-  void Serialize(::protozero::Message*) const;
-
-  bool has_config() const { return _has_field_[1]; }
-  const DataSourceConfig& config() const { return *config_; }
-  DataSourceConfig* mutable_config() { _has_field_.set(1); return config_.get(); }
-
-  const std::vector<std::string>& producer_name_filter() const { return producer_name_filter_; }
-  std::vector<std::string>* mutable_producer_name_filter() { return &producer_name_filter_; }
-  int producer_name_filter_size() const { return static_cast<int>(producer_name_filter_.size()); }
-  void clear_producer_name_filter() { producer_name_filter_.clear(); }
-  void add_producer_name_filter(std::string value) { producer_name_filter_.emplace_back(value); }
-  std::string* add_producer_name_filter() { producer_name_filter_.emplace_back(); return &producer_name_filter_.back(); }
-
-  const std::vector<std::string>& producer_name_regex_filter() const { return producer_name_regex_filter_; }
-  std::vector<std::string>* mutable_producer_name_regex_filter() { return &producer_name_regex_filter_; }
-  int producer_name_regex_filter_size() const { return static_cast<int>(producer_name_regex_filter_.size()); }
-  void clear_producer_name_regex_filter() { producer_name_regex_filter_.clear(); }
-  void add_producer_name_regex_filter(std::string value) { producer_name_regex_filter_.emplace_back(value); }
-  std::string* add_producer_name_regex_filter() { producer_name_regex_filter_.emplace_back(); return &producer_name_regex_filter_.back(); }
-
- private:
-  ::protozero::CopyablePtr<DataSourceConfig> config_;
-  std::vector<std::string> producer_name_filter_;
-  std::vector<std::string> producer_name_regex_filter_;
-
-  // Allows to preserve unknown protobuf fields for compatibility
-  // with future versions of .proto files.
-  std::string unknown_fields_;
-
-  std::bitset<4> _has_field_{};
-};
-
-
-class PERFETTO_EXPORT TraceConfig_BufferConfig : public ::protozero::CppMessageObj {
- public:
-  using FillPolicy = TraceConfig_BufferConfig_FillPolicy;
-  static constexpr auto UNSPECIFIED = TraceConfig_BufferConfig_FillPolicy_UNSPECIFIED;
-  static constexpr auto RING_BUFFER = TraceConfig_BufferConfig_FillPolicy_RING_BUFFER;
-  static constexpr auto DISCARD = TraceConfig_BufferConfig_FillPolicy_DISCARD;
-  static constexpr auto FillPolicy_MIN = TraceConfig_BufferConfig_FillPolicy_UNSPECIFIED;
-  static constexpr auto FillPolicy_MAX = TraceConfig_BufferConfig_FillPolicy_DISCARD;
-  enum FieldNumbers {
-    kSizeKbFieldNumber = 1,
-    kFillPolicyFieldNumber = 4,
-  };
-
-  TraceConfig_BufferConfig();
-  ~TraceConfig_BufferConfig() override;
-  TraceConfig_BufferConfig(TraceConfig_BufferConfig&&) noexcept;
-  TraceConfig_BufferConfig& operator=(TraceConfig_BufferConfig&&);
-  TraceConfig_BufferConfig(const TraceConfig_BufferConfig&);
-  TraceConfig_BufferConfig& operator=(const TraceConfig_BufferConfig&);
-  bool operator==(const TraceConfig_BufferConfig&) const;
-  bool operator!=(const TraceConfig_BufferConfig& other) const { return !(*this == other); }
-
-  bool ParseFromArray(const void*, size_t) override;
-  std::string SerializeAsString() const override;
-  std::vector<uint8_t> SerializeAsArray() const override;
-  void Serialize(::protozero::Message*) const;
-
-  bool has_size_kb() const { return _has_field_[1]; }
-  uint32_t size_kb() const { return size_kb_; }
-  void set_size_kb(uint32_t value) { size_kb_ = value; _has_field_.set(1); }
-
-  bool has_fill_policy() const { return _has_field_[4]; }
-  TraceConfig_BufferConfig_FillPolicy fill_policy() const { return fill_policy_; }
-  void set_fill_policy(TraceConfig_BufferConfig_FillPolicy value) { fill_policy_ = value; _has_field_.set(4); }
-
- private:
-  uint32_t size_kb_{};
-  TraceConfig_BufferConfig_FillPolicy fill_policy_{};
-
-  // Allows to preserve unknown protobuf fields for compatibility
-  // with future versions of .proto files.
-  std::string unknown_fields_;
-
-  std::bitset<5> _has_field_{};
-};
-
-}  // namespace perfetto
-}  // namespace protos
-}  // namespace gen
-
-#endif  // PERFETTO_PROTOS_PROTOS_PERFETTO_CONFIG_TRACE_CONFIG_PROTO_CPP_H_
-/*
- * Copyright (C) 2017 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef INCLUDE_PERFETTO_TRACING_CORE_TRACE_CONFIG_H_
-#define INCLUDE_PERFETTO_TRACING_CORE_TRACE_CONFIG_H_
-
-// Creates the aliases in the ::perfetto namespace, doing things like:
-// using ::perfetto::Foo = ::perfetto::protos::gen::Foo.
-// See comments in forward_decls.h for the historical reasons of this
-// indirection layer.
-// gen_amalgamated expanded: #include "perfetto/tracing/core/forward_decls.h"
-
-// gen_amalgamated expanded: #include "protos/perfetto/config/trace_config.gen.h"
-
-#endif  // INCLUDE_PERFETTO_TRACING_CORE_TRACE_CONFIG_H_
-// gen_amalgamated begin header: include/perfetto/tracing/data_source.h
-// gen_amalgamated begin header: include/perfetto/tracing/internal/tracing_muxer.h
-// gen_amalgamated begin header: include/perfetto/tracing/internal/tracing_tls.h
-// gen_amalgamated begin header: include/perfetto/tracing/platform.h
-/*
- * Copyright (C) 2019 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef INCLUDE_PERFETTO_TRACING_PLATFORM_H_
-#define INCLUDE_PERFETTO_TRACING_PLATFORM_H_
-
-#include <stddef.h>
-#include <stdint.h>
-
-#include <functional>
-#include <memory>
-#include <string>
-
-// gen_amalgamated expanded: #include "perfetto/base/export.h"
-
-namespace perfetto {
-
-namespace base {
-class TaskRunner;
-}  // namespace base
-
-// This abstract class is used to abstract dependencies on platform-specific
-// primitives that cannot be implemented by the perfetto codebase and must be
-// provided or overridden by the embedder.
-// This is, for instance, for cases where we want to use some particular
-// base:: class in Chrome and provide instead POSIX fallbacks for other
-// embedders.
-
-// Base class for thread-local objects. This is to get a basic object vtable and
-// delegate destruction to the embedder. See Platform::CreateThreadLocalObject.
-class PERFETTO_EXPORT PlatformThreadLocalObject {
- public:
-  // Implemented by perfetto internal code. The embedder must call this when
-  // implementing GetOrCreateThreadLocalObject() to create an instance for the
-  // first time on each thread.
-  static std::unique_ptr<PlatformThreadLocalObject> CreateInstance();
-  virtual ~PlatformThreadLocalObject();
-};
-
-class PERFETTO_EXPORT Platform {
- public:
-  // Embedders can use this unless they have custom needs (e.g. Chrome wanting
-  // to use its own base class for TLS).
-  static Platform* GetDefaultPlatform();
-
-  virtual ~Platform();
-
-  // Creates a thread-local object. The embedder must:
-  // - Create an instance per-thread calling ThreadLocalObject::CreateInstance.
-  // - Own the lifetime of the returned object as long as the thread is alive.
-  // - Destroy it when the thread exits.
-  // Perfetto requires only one thread-local object overall (obviously, one
-  // instance per-thread) from the embedder.
-  using ThreadLocalObject = ::perfetto::PlatformThreadLocalObject;
-  virtual ThreadLocalObject* GetOrCreateThreadLocalObject() = 0;
-
-  // Creates a sequenced task runner. The easiest implementation is to create
-  // a new thread (e.g. use base::ThreadTaskRunner) but this can also be
-  // implemented in some more clever way (e.g. using chromiums's scheduler).
-  struct CreateTaskRunnerArgs {};
-  virtual std::unique_ptr<base::TaskRunner> CreateTaskRunner(
-      const CreateTaskRunnerArgs&) = 0;
-
-  // Used to derive the producer name. Mostly relevant when using the
-  // kSystemBackend mode. It can be an arbitrary string when using the
-  // in-process mode.
-  virtual std::string GetCurrentProcessName() = 0;
-};
-
-}  // namespace perfetto
-
-#endif  // INCLUDE_PERFETTO_TRACING_PLATFORM_H_
-/*
- * Copyright (C) 2019 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef INCLUDE_PERFETTO_TRACING_INTERNAL_TRACING_TLS_H_
-#define INCLUDE_PERFETTO_TRACING_INTERNAL_TRACING_TLS_H_
-
-#include <array>
-#include <memory>
-
-// gen_amalgamated expanded: #include "perfetto/tracing/internal/basic_types.h"
-// gen_amalgamated expanded: #include "perfetto/tracing/internal/data_source_internal.h"
-// gen_amalgamated expanded: #include "perfetto/tracing/platform.h"
-
-namespace perfetto {
-
-class TraceWriterBase;
-
-namespace internal {
-
-// Organization of the thread-local storage
-// ----------------------------------------
-// First of all, remember the cardinality of the problem: at any point in time
-// there are M data sources registered (i.e. number of subclasses of DataSource)
-// and up to N concurrent instances for each data source, so up to M * N total
-// data source instances around.
-// Each data source instance can be accessed by T threads (no upper bound).
-// We can safely put hard limits both to M and N (i.e. say that we support at
-// most 32 data source types per process and up to 8 concurrent instances).
-//
-// We want to make it so from the Platform viewpoint, we use only one global
-// TLS object, so T instances in total, one per thread, regardless of M and N.
-// This allows to deal with at-thread-exit destruction only in one place, rather
-// than N, M or M * N.
-//
-// Visually:
-//                     [    Thread 1   ] [    Thread 2   ] [    Thread T   ]
-//                     +---------------+ +---------------+ +---------------+
-// Data source Foo     |               | |               | |               |
-//  Instance 1         |     TLS       | |     TLS       | |     TLS       |
-//  Instance 2         |    Object     | |    Object     | |    Object     |
-//  Instance 3         |               | |               | |               |
-//                     |               | |               | |               |
-// Data source Bar     |               | |               | |               |
-//  Instance 1         |               | |               | |               |
-//  Instance 2         |               | |               | |               |
-//                     +---------------+ +---------------+ +---------------+
-//
-// Each TLS Object is organized as an array of M DataSourceThreadLocalState.
-// Each DSTLS itself is an array of up to N per-instance objects.
-// The only per-instance object for now is the TraceWriter.
-// So for each data source, for each instance, for each thread we keep one
-// TraceWriter.
-// The lookup is O(1): Given the TLS object, the TraceWriter is just tls[M][N].
-class TracingTLS : public Platform::ThreadLocalObject {
- public:
-  ~TracingTLS() override;
-
-  // This is checked against TraceMuxerImpl's global generation counter to
-  // handle destruction of TraceWriter(s) that belong to data sources that
-  // have been stopped. When the two numbers diverge, a scan of all the
-  // thread-local TraceWriter(s) is issued.
-  uint32_t generation = 0;
-
-  // This flag is true while this thread is inside a trace point for any data
-  // source or in other delicate parts of the tracing machinery during which we
-  // should not try to trace. Used to prevent unexpected re-entrancy.
-  bool is_in_trace_point = false;
-
-  // By default all data source instances have independent thread-local state
-  // (see above).
-  std::array<DataSourceThreadLocalState, kMaxDataSources> data_sources_tls{};
-
-  // Track event data sources, however, share the same thread-local state in
-  // order to be able to share trace writers and interning state across all
-  // track event categories.
-  DataSourceThreadLocalState track_event_tls{};
-};
-
-struct ScopedReentrancyAnnotator {
-  ScopedReentrancyAnnotator(TracingTLS& root_tls) : root_tls_(root_tls) {
-    PERFETTO_DCHECK(!root_tls_.is_in_trace_point);
-    root_tls_.is_in_trace_point = true;
-  }
-  ~ScopedReentrancyAnnotator() { root_tls_.is_in_trace_point = false; }
-
- private:
-  TracingTLS& root_tls_;
-};
-
-}  // namespace internal
-}  // namespace perfetto
-
-#endif  // INCLUDE_PERFETTO_TRACING_INTERNAL_TRACING_TLS_H_
-/*
- * Copyright (C) 2019 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef INCLUDE_PERFETTO_TRACING_INTERNAL_TRACING_MUXER_H_
-#define INCLUDE_PERFETTO_TRACING_INTERNAL_TRACING_MUXER_H_
-
-#include <atomic>
-#include <memory>
-
-// gen_amalgamated expanded: #include "perfetto/base/export.h"
-// gen_amalgamated expanded: #include "perfetto/tracing/core/forward_decls.h"
-// gen_amalgamated expanded: #include "perfetto/tracing/interceptor.h"
-// gen_amalgamated expanded: #include "perfetto/tracing/internal/basic_types.h"
-// gen_amalgamated expanded: #include "perfetto/tracing/internal/tracing_tls.h"
-// gen_amalgamated expanded: #include "perfetto/tracing/platform.h"
-namespace perfetto {
-
-class DataSourceBase;
-class TraceWriterBase;
-struct TracingInitArgs;
-class TracingSession;
-
-namespace internal {
-
-struct DataSourceStaticState;
-
-// This class acts as a bridge between the public API methods and the
-// TracingBackend(s). It exposes a simplified view of the world to the API
-// methods, so that they don't have to care about the multiplicity of backends.
-// It handles all the bookkeeping to map data source instances and trace writers
-// to the various backends.
-// See tracing_muxer_impl.h for the full picture. This class contains only the
-// fewer fields and methods that need to be exposed to public/ headers. Fields
-// and methods that are required to implement them should go into
-// src/tracing/internal/tracing_muxer_impl.h instead: that one can pull in
-// perfetto headers outside of public, this one cannot.
-class PERFETTO_EXPORT TracingMuxer {
- public:
-  static TracingMuxer* Get() { return instance_; }
-
-  virtual ~TracingMuxer();
-
-  TracingTLS* GetOrCreateTracingTLS() {
-    return static_cast<TracingTLS*>(platform_->GetOrCreateThreadLocalObject());
-  }
-
-  // This method can fail and return false if trying to register more than
-  // kMaxDataSources types.
-  using DataSourceFactory = std::function<std::unique_ptr<DataSourceBase>()>;
-  virtual bool RegisterDataSource(const DataSourceDescriptor&,
-                                  DataSourceFactory,
-                                  DataSourceStaticState*) = 0;
-
-  // It identifies the right backend and forwards the call to it.
-  // The returned TraceWriter must be used within the same sequence (for most
-  // projects this means "same thread"). Alternatively the client needs to take
-  // care of using synchronization primitives to prevent concurrent accesses.
-  virtual std::unique_ptr<TraceWriterBase> CreateTraceWriter(
-      DataSourceStaticState*,
-      uint32_t data_source_instance_index,
-      DataSourceState*,
-      BufferExhaustedPolicy buffer_exhausted_policy) = 0;
-
-  virtual void DestroyStoppedTraceWritersForCurrentThread() = 0;
-
-  uint32_t generation(std::memory_order ord) { return generation_.load(ord); }
-
-  using InterceptorFactory = std::function<std::unique_ptr<InterceptorBase>()>;
-  virtual void RegisterInterceptor(const InterceptorDescriptor&,
-                                   InterceptorFactory,
-                                   InterceptorBase::TLSFactory,
-                                   InterceptorBase::TracePacketCallback) = 0;
-
- protected:
-  explicit TracingMuxer(Platform* platform) : platform_(platform) {}
-
-  static TracingMuxer* instance_;
-  Platform* const platform_ = nullptr;
-
-  // Incremented every time a data source is destroyed. See tracing_tls.h.
-  std::atomic<uint32_t> generation_{};
-};
-
-}  // namespace internal
-}  // namespace perfetto
-
-#endif  // INCLUDE_PERFETTO_TRACING_INTERNAL_TRACING_MUXER_H_
-// gen_amalgamated begin header: gen/protos/perfetto/trace/trace_packet.pbzero.h
-// Autogenerated by the ProtoZero compiler plugin. DO NOT EDIT.
-
-#ifndef PERFETTO_PROTOS_PROTOS_PERFETTO_TRACE_TRACE_PACKET_PROTO_H_
-#define PERFETTO_PROTOS_PROTOS_PERFETTO_TRACE_TRACE_PACKET_PROTO_H_
-
-#include <stddef.h>
-#include <stdint.h>
-
-// gen_amalgamated expanded: #include "perfetto/protozero/field_writer.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/message.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/packed_repeated_fields.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/proto_decoder.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/proto_utils.h"
-
-namespace perfetto {
-namespace protos {
-namespace pbzero {
-
-class AndroidEnergyEstimationBreakdown;
-class AndroidLogPacket;
-class BatteryCounters;
-class ChromeBenchmarkMetadata;
-class ChromeEventBundle;
-class ChromeMetadataPacket;
-class ClockSnapshot;
-class CpuInfo;
-class DeobfuscationMapping;
-class ExtensionDescriptor;
-class FrameTimelineEvent;
-class FtraceEventBundle;
-class FtraceStats;
-class GpuCounterEvent;
-class GpuLog;
-class GpuMemTotalEvent;
-class GpuRenderStageEvent;
-class GraphicsFrameEvent;
-class HeapGraph;
-class InitialDisplayState;
-class InodeFileMap;
-class InternedData;
-class MemoryTrackerSnapshot;
-class ModuleSymbols;
-class PackagesList;
-class PerfSample;
-class PerfettoMetatrace;
-class PowerRails;
-class ProcessDescriptor;
-class ProcessStats;
-class ProcessTree;
-class ProfilePacket;
-class ProfiledFrameSymbols;
-class SmapsPacket;
-class StreamingAllocation;
-class StreamingFree;
-class StreamingProfilePacket;
-class SysStats;
-class SystemInfo;
-class TestEvent;
-class ThreadDescriptor;
-class TraceConfig;
-class TracePacketDefaults;
-class TraceStats;
-class TracingServiceEvent;
-class TrackDescriptor;
-class TrackEvent;
-class Trigger;
-class UiState;
-class VulkanApiEvent;
-class VulkanMemoryEvent;
-
-enum TracePacket_SequenceFlags : int32_t {
-  TracePacket_SequenceFlags_SEQ_UNSPECIFIED = 0,
-  TracePacket_SequenceFlags_SEQ_INCREMENTAL_STATE_CLEARED = 1,
-  TracePacket_SequenceFlags_SEQ_NEEDS_INCREMENTAL_STATE = 2,
-};
-
-const TracePacket_SequenceFlags TracePacket_SequenceFlags_MIN = TracePacket_SequenceFlags_SEQ_UNSPECIFIED;
-const TracePacket_SequenceFlags TracePacket_SequenceFlags_MAX = TracePacket_SequenceFlags_SEQ_NEEDS_INCREMENTAL_STATE;
-
-class TracePacket_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/900, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  TracePacket_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit TracePacket_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit TracePacket_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_timestamp() const { return at<8>().valid(); }
-  uint64_t timestamp() const { return at<8>().as_uint64(); }
-  bool has_timestamp_clock_id() const { return at<58>().valid(); }
-  uint32_t timestamp_clock_id() const { return at<58>().as_uint32(); }
-  bool has_process_tree() const { return at<2>().valid(); }
-  ::protozero::ConstBytes process_tree() const { return at<2>().as_bytes(); }
-  bool has_process_stats() const { return at<9>().valid(); }
-  ::protozero::ConstBytes process_stats() const { return at<9>().as_bytes(); }
-  bool has_inode_file_map() const { return at<4>().valid(); }
-  ::protozero::ConstBytes inode_file_map() const { return at<4>().as_bytes(); }
-  bool has_chrome_events() const { return at<5>().valid(); }
-  ::protozero::ConstBytes chrome_events() const { return at<5>().as_bytes(); }
-  bool has_clock_snapshot() const { return at<6>().valid(); }
-  ::protozero::ConstBytes clock_snapshot() const { return at<6>().as_bytes(); }
-  bool has_sys_stats() const { return at<7>().valid(); }
-  ::protozero::ConstBytes sys_stats() const { return at<7>().as_bytes(); }
-  bool has_track_event() const { return at<11>().valid(); }
-  ::protozero::ConstBytes track_event() const { return at<11>().as_bytes(); }
-  bool has_trace_config() const { return at<33>().valid(); }
-  ::protozero::ConstBytes trace_config() const { return at<33>().as_bytes(); }
-  bool has_ftrace_stats() const { return at<34>().valid(); }
-  ::protozero::ConstBytes ftrace_stats() const { return at<34>().as_bytes(); }
-  bool has_trace_stats() const { return at<35>().valid(); }
-  ::protozero::ConstBytes trace_stats() const { return at<35>().as_bytes(); }
-  bool has_profile_packet() const { return at<37>().valid(); }
-  ::protozero::ConstBytes profile_packet() const { return at<37>().as_bytes(); }
-  bool has_streaming_allocation() const { return at<74>().valid(); }
-  ::protozero::ConstBytes streaming_allocation() const { return at<74>().as_bytes(); }
-  bool has_streaming_free() const { return at<75>().valid(); }
-  ::protozero::ConstBytes streaming_free() const { return at<75>().as_bytes(); }
-  bool has_battery() const { return at<38>().valid(); }
-  ::protozero::ConstBytes battery() const { return at<38>().as_bytes(); }
-  bool has_power_rails() const { return at<40>().valid(); }
-  ::protozero::ConstBytes power_rails() const { return at<40>().as_bytes(); }
-  bool has_android_log() const { return at<39>().valid(); }
-  ::protozero::ConstBytes android_log() const { return at<39>().as_bytes(); }
-  bool has_system_info() const { return at<45>().valid(); }
-  ::protozero::ConstBytes system_info() const { return at<45>().as_bytes(); }
-  bool has_trigger() const { return at<46>().valid(); }
-  ::protozero::ConstBytes trigger() const { return at<46>().as_bytes(); }
-  bool has_packages_list() const { return at<47>().valid(); }
-  ::protozero::ConstBytes packages_list() const { return at<47>().as_bytes(); }
-  bool has_chrome_benchmark_metadata() const { return at<48>().valid(); }
-  ::protozero::ConstBytes chrome_benchmark_metadata() const { return at<48>().as_bytes(); }
-  bool has_perfetto_metatrace() const { return at<49>().valid(); }
-  ::protozero::ConstBytes perfetto_metatrace() const { return at<49>().as_bytes(); }
-  bool has_chrome_metadata() const { return at<51>().valid(); }
-  ::protozero::ConstBytes chrome_metadata() const { return at<51>().as_bytes(); }
-  bool has_gpu_counter_event() const { return at<52>().valid(); }
-  ::protozero::ConstBytes gpu_counter_event() const { return at<52>().as_bytes(); }
-  bool has_gpu_render_stage_event() const { return at<53>().valid(); }
-  ::protozero::ConstBytes gpu_render_stage_event() const { return at<53>().as_bytes(); }
-  bool has_streaming_profile_packet() const { return at<54>().valid(); }
-  ::protozero::ConstBytes streaming_profile_packet() const { return at<54>().as_bytes(); }
-  bool has_heap_graph() const { return at<56>().valid(); }
-  ::protozero::ConstBytes heap_graph() const { return at<56>().as_bytes(); }
-  bool has_graphics_frame_event() const { return at<57>().valid(); }
-  ::protozero::ConstBytes graphics_frame_event() const { return at<57>().as_bytes(); }
-  bool has_vulkan_memory_event() const { return at<62>().valid(); }
-  ::protozero::ConstBytes vulkan_memory_event() const { return at<62>().as_bytes(); }
-  bool has_gpu_log() const { return at<63>().valid(); }
-  ::protozero::ConstBytes gpu_log() const { return at<63>().as_bytes(); }
-  bool has_vulkan_api_event() const { return at<65>().valid(); }
-  ::protozero::ConstBytes vulkan_api_event() const { return at<65>().as_bytes(); }
-  bool has_perf_sample() const { return at<66>().valid(); }
-  ::protozero::ConstBytes perf_sample() const { return at<66>().as_bytes(); }
-  bool has_cpu_info() const { return at<67>().valid(); }
-  ::protozero::ConstBytes cpu_info() const { return at<67>().as_bytes(); }
-  bool has_smaps_packet() const { return at<68>().valid(); }
-  ::protozero::ConstBytes smaps_packet() const { return at<68>().as_bytes(); }
-  bool has_service_event() const { return at<69>().valid(); }
-  ::protozero::ConstBytes service_event() const { return at<69>().as_bytes(); }
-  bool has_initial_display_state() const { return at<70>().valid(); }
-  ::protozero::ConstBytes initial_display_state() const { return at<70>().as_bytes(); }
-  bool has_gpu_mem_total_event() const { return at<71>().valid(); }
-  ::protozero::ConstBytes gpu_mem_total_event() const { return at<71>().as_bytes(); }
-  bool has_memory_tracker_snapshot() const { return at<73>().valid(); }
-  ::protozero::ConstBytes memory_tracker_snapshot() const { return at<73>().as_bytes(); }
-  bool has_frame_timeline_event() const { return at<76>().valid(); }
-  ::protozero::ConstBytes frame_timeline_event() const { return at<76>().as_bytes(); }
-  bool has_android_energy_estimation_breakdown() const { return at<77>().valid(); }
-  ::protozero::ConstBytes android_energy_estimation_breakdown() const { return at<77>().as_bytes(); }
-  bool has_ui_state() const { return at<78>().valid(); }
-  ::protozero::ConstBytes ui_state() const { return at<78>().as_bytes(); }
-  bool has_profiled_frame_symbols() const { return at<55>().valid(); }
-  ::protozero::ConstBytes profiled_frame_symbols() const { return at<55>().as_bytes(); }
-  bool has_module_symbols() const { return at<61>().valid(); }
-  ::protozero::ConstBytes module_symbols() const { return at<61>().as_bytes(); }
-  bool has_deobfuscation_mapping() const { return at<64>().valid(); }
-  ::protozero::ConstBytes deobfuscation_mapping() const { return at<64>().as_bytes(); }
-  bool has_track_descriptor() const { return at<60>().valid(); }
-  ::protozero::ConstBytes track_descriptor() const { return at<60>().as_bytes(); }
-  bool has_process_descriptor() const { return at<43>().valid(); }
-  ::protozero::ConstBytes process_descriptor() const { return at<43>().as_bytes(); }
-  bool has_thread_descriptor() const { return at<44>().valid(); }
-  ::protozero::ConstBytes thread_descriptor() const { return at<44>().as_bytes(); }
-  bool has_ftrace_events() const { return at<1>().valid(); }
-  ::protozero::ConstBytes ftrace_events() const { return at<1>().as_bytes(); }
-  bool has_synchronization_marker() const { return at<36>().valid(); }
-  ::protozero::ConstBytes synchronization_marker() const { return at<36>().as_bytes(); }
-  bool has_compressed_packets() const { return at<50>().valid(); }
-  ::protozero::ConstBytes compressed_packets() const { return at<50>().as_bytes(); }
-  bool has_extension_descriptor() const { return at<72>().valid(); }
-  ::protozero::ConstBytes extension_descriptor() const { return at<72>().as_bytes(); }
-  bool has_for_testing() const { return at<900>().valid(); }
-  ::protozero::ConstBytes for_testing() const { return at<900>().as_bytes(); }
-  bool has_trusted_uid() const { return at<3>().valid(); }
-  int32_t trusted_uid() const { return at<3>().as_int32(); }
-  bool has_trusted_packet_sequence_id() const { return at<10>().valid(); }
-  uint32_t trusted_packet_sequence_id() const { return at<10>().as_uint32(); }
-  bool has_interned_data() const { return at<12>().valid(); }
-  ::protozero::ConstBytes interned_data() const { return at<12>().as_bytes(); }
-  bool has_sequence_flags() const { return at<13>().valid(); }
-  uint32_t sequence_flags() const { return at<13>().as_uint32(); }
-  bool has_incremental_state_cleared() const { return at<41>().valid(); }
-  bool incremental_state_cleared() const { return at<41>().as_bool(); }
-  bool has_trace_packet_defaults() const { return at<59>().valid(); }
-  ::protozero::ConstBytes trace_packet_defaults() const { return at<59>().as_bytes(); }
-  bool has_previous_packet_dropped() const { return at<42>().valid(); }
-  bool previous_packet_dropped() const { return at<42>().as_bool(); }
-};
-
-class TracePacket : public ::protozero::Message {
- public:
-  using Decoder = TracePacket_Decoder;
-  enum : int32_t {
-    kTimestampFieldNumber = 8,
-    kTimestampClockIdFieldNumber = 58,
-    kProcessTreeFieldNumber = 2,
-    kProcessStatsFieldNumber = 9,
-    kInodeFileMapFieldNumber = 4,
-    kChromeEventsFieldNumber = 5,
-    kClockSnapshotFieldNumber = 6,
-    kSysStatsFieldNumber = 7,
-    kTrackEventFieldNumber = 11,
-    kTraceConfigFieldNumber = 33,
-    kFtraceStatsFieldNumber = 34,
-    kTraceStatsFieldNumber = 35,
-    kProfilePacketFieldNumber = 37,
-    kStreamingAllocationFieldNumber = 74,
-    kStreamingFreeFieldNumber = 75,
-    kBatteryFieldNumber = 38,
-    kPowerRailsFieldNumber = 40,
-    kAndroidLogFieldNumber = 39,
-    kSystemInfoFieldNumber = 45,
-    kTriggerFieldNumber = 46,
-    kPackagesListFieldNumber = 47,
-    kChromeBenchmarkMetadataFieldNumber = 48,
-    kPerfettoMetatraceFieldNumber = 49,
-    kChromeMetadataFieldNumber = 51,
-    kGpuCounterEventFieldNumber = 52,
-    kGpuRenderStageEventFieldNumber = 53,
-    kStreamingProfilePacketFieldNumber = 54,
-    kHeapGraphFieldNumber = 56,
-    kGraphicsFrameEventFieldNumber = 57,
-    kVulkanMemoryEventFieldNumber = 62,
-    kGpuLogFieldNumber = 63,
-    kVulkanApiEventFieldNumber = 65,
-    kPerfSampleFieldNumber = 66,
-    kCpuInfoFieldNumber = 67,
-    kSmapsPacketFieldNumber = 68,
-    kServiceEventFieldNumber = 69,
-    kInitialDisplayStateFieldNumber = 70,
-    kGpuMemTotalEventFieldNumber = 71,
-    kMemoryTrackerSnapshotFieldNumber = 73,
-    kFrameTimelineEventFieldNumber = 76,
-    kAndroidEnergyEstimationBreakdownFieldNumber = 77,
-    kUiStateFieldNumber = 78,
-    kProfiledFrameSymbolsFieldNumber = 55,
-    kModuleSymbolsFieldNumber = 61,
-    kDeobfuscationMappingFieldNumber = 64,
-    kTrackDescriptorFieldNumber = 60,
-    kProcessDescriptorFieldNumber = 43,
-    kThreadDescriptorFieldNumber = 44,
-    kFtraceEventsFieldNumber = 1,
-    kSynchronizationMarkerFieldNumber = 36,
-    kCompressedPacketsFieldNumber = 50,
-    kExtensionDescriptorFieldNumber = 72,
-    kForTestingFieldNumber = 900,
-    kTrustedUidFieldNumber = 3,
-    kTrustedPacketSequenceIdFieldNumber = 10,
-    kInternedDataFieldNumber = 12,
-    kSequenceFlagsFieldNumber = 13,
-    kIncrementalStateClearedFieldNumber = 41,
-    kTracePacketDefaultsFieldNumber = 59,
-    kPreviousPacketDroppedFieldNumber = 42,
-  };
-  using SequenceFlags = ::perfetto::protos::pbzero::TracePacket_SequenceFlags;
-  static const SequenceFlags SEQ_UNSPECIFIED = TracePacket_SequenceFlags_SEQ_UNSPECIFIED;
-  static const SequenceFlags SEQ_INCREMENTAL_STATE_CLEARED = TracePacket_SequenceFlags_SEQ_INCREMENTAL_STATE_CLEARED;
-  static const SequenceFlags SEQ_NEEDS_INCREMENTAL_STATE = TracePacket_SequenceFlags_SEQ_NEEDS_INCREMENTAL_STATE;
-
-  using FieldMetadata_Timestamp =
-    ::protozero::proto_utils::FieldMetadata<
-      8,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      TracePacket>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Timestamp kTimestamp() { return {}; }
-  void set_timestamp(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Timestamp::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_TimestampClockId =
-    ::protozero::proto_utils::FieldMetadata<
-      58,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      TracePacket>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_TimestampClockId kTimestampClockId() { return {}; }
-  void set_timestamp_clock_id(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_TimestampClockId::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_ProcessTree =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      ProcessTree,
-      TracePacket>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_ProcessTree kProcessTree() { return {}; }
-  template <typename T = ProcessTree> T* set_process_tree() {
-    return BeginNestedMessage<T>(2);
-  }
-
-
-  using FieldMetadata_ProcessStats =
-    ::protozero::proto_utils::FieldMetadata<
-      9,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      ProcessStats,
-      TracePacket>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_ProcessStats kProcessStats() { return {}; }
-  template <typename T = ProcessStats> T* set_process_stats() {
-    return BeginNestedMessage<T>(9);
-  }
-
-
-  using FieldMetadata_InodeFileMap =
-    ::protozero::proto_utils::FieldMetadata<
-      4,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      InodeFileMap,
-      TracePacket>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_InodeFileMap kInodeFileMap() { return {}; }
-  template <typename T = InodeFileMap> T* set_inode_file_map() {
-    return BeginNestedMessage<T>(4);
-  }
-
-
-  using FieldMetadata_ChromeEvents =
-    ::protozero::proto_utils::FieldMetadata<
-      5,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      ChromeEventBundle,
-      TracePacket>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_ChromeEvents kChromeEvents() { return {}; }
-  template <typename T = ChromeEventBundle> T* set_chrome_events() {
-    return BeginNestedMessage<T>(5);
-  }
-
-
-  using FieldMetadata_ClockSnapshot =
-    ::protozero::proto_utils::FieldMetadata<
-      6,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      ClockSnapshot,
-      TracePacket>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_ClockSnapshot kClockSnapshot() { return {}; }
-  template <typename T = ClockSnapshot> T* set_clock_snapshot() {
-    return BeginNestedMessage<T>(6);
-  }
-
-
-  using FieldMetadata_SysStats =
-    ::protozero::proto_utils::FieldMetadata<
-      7,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      SysStats,
-      TracePacket>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_SysStats kSysStats() { return {}; }
-  template <typename T = SysStats> T* set_sys_stats() {
-    return BeginNestedMessage<T>(7);
-  }
-
-
-  using FieldMetadata_TrackEvent =
-    ::protozero::proto_utils::FieldMetadata<
-      11,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      TrackEvent,
-      TracePacket>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_TrackEvent kTrackEvent() { return {}; }
-  template <typename T = TrackEvent> T* set_track_event() {
-    return BeginNestedMessage<T>(11);
-  }
-
-
-  using FieldMetadata_TraceConfig =
-    ::protozero::proto_utils::FieldMetadata<
-      33,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      TraceConfig,
-      TracePacket>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_TraceConfig kTraceConfig() { return {}; }
-  template <typename T = TraceConfig> T* set_trace_config() {
-    return BeginNestedMessage<T>(33);
-  }
-
-
-  using FieldMetadata_FtraceStats =
-    ::protozero::proto_utils::FieldMetadata<
-      34,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      FtraceStats,
-      TracePacket>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_FtraceStats kFtraceStats() { return {}; }
-  template <typename T = FtraceStats> T* set_ftrace_stats() {
-    return BeginNestedMessage<T>(34);
-  }
-
-
-  using FieldMetadata_TraceStats =
-    ::protozero::proto_utils::FieldMetadata<
-      35,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      TraceStats,
-      TracePacket>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_TraceStats kTraceStats() { return {}; }
-  template <typename T = TraceStats> T* set_trace_stats() {
-    return BeginNestedMessage<T>(35);
-  }
-
-
-  using FieldMetadata_ProfilePacket =
-    ::protozero::proto_utils::FieldMetadata<
-      37,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      ProfilePacket,
-      TracePacket>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_ProfilePacket kProfilePacket() { return {}; }
-  template <typename T = ProfilePacket> T* set_profile_packet() {
-    return BeginNestedMessage<T>(37);
-  }
-
-
-  using FieldMetadata_StreamingAllocation =
-    ::protozero::proto_utils::FieldMetadata<
-      74,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      StreamingAllocation,
-      TracePacket>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_StreamingAllocation kStreamingAllocation() { return {}; }
-  template <typename T = StreamingAllocation> T* set_streaming_allocation() {
-    return BeginNestedMessage<T>(74);
-  }
-
-
-  using FieldMetadata_StreamingFree =
-    ::protozero::proto_utils::FieldMetadata<
-      75,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      StreamingFree,
-      TracePacket>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_StreamingFree kStreamingFree() { return {}; }
-  template <typename T = StreamingFree> T* set_streaming_free() {
-    return BeginNestedMessage<T>(75);
-  }
-
-
-  using FieldMetadata_Battery =
-    ::protozero::proto_utils::FieldMetadata<
-      38,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      BatteryCounters,
-      TracePacket>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Battery kBattery() { return {}; }
-  template <typename T = BatteryCounters> T* set_battery() {
-    return BeginNestedMessage<T>(38);
-  }
-
-
-  using FieldMetadata_PowerRails =
-    ::protozero::proto_utils::FieldMetadata<
-      40,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      PowerRails,
-      TracePacket>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_PowerRails kPowerRails() { return {}; }
-  template <typename T = PowerRails> T* set_power_rails() {
-    return BeginNestedMessage<T>(40);
-  }
-
-
-  using FieldMetadata_AndroidLog =
-    ::protozero::proto_utils::FieldMetadata<
-      39,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      AndroidLogPacket,
-      TracePacket>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_AndroidLog kAndroidLog() { return {}; }
-  template <typename T = AndroidLogPacket> T* set_android_log() {
-    return BeginNestedMessage<T>(39);
-  }
-
-
-  using FieldMetadata_SystemInfo =
-    ::protozero::proto_utils::FieldMetadata<
-      45,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      SystemInfo,
-      TracePacket>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_SystemInfo kSystemInfo() { return {}; }
-  template <typename T = SystemInfo> T* set_system_info() {
-    return BeginNestedMessage<T>(45);
-  }
-
-
-  using FieldMetadata_Trigger =
-    ::protozero::proto_utils::FieldMetadata<
-      46,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      Trigger,
-      TracePacket>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Trigger kTrigger() { return {}; }
-  template <typename T = Trigger> T* set_trigger() {
-    return BeginNestedMessage<T>(46);
-  }
-
-
-  using FieldMetadata_PackagesList =
-    ::protozero::proto_utils::FieldMetadata<
-      47,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      PackagesList,
-      TracePacket>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_PackagesList kPackagesList() { return {}; }
-  template <typename T = PackagesList> T* set_packages_list() {
-    return BeginNestedMessage<T>(47);
-  }
-
-
-  using FieldMetadata_ChromeBenchmarkMetadata =
-    ::protozero::proto_utils::FieldMetadata<
-      48,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      ChromeBenchmarkMetadata,
-      TracePacket>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_ChromeBenchmarkMetadata kChromeBenchmarkMetadata() { return {}; }
-  template <typename T = ChromeBenchmarkMetadata> T* set_chrome_benchmark_metadata() {
-    return BeginNestedMessage<T>(48);
-  }
-
-
-  using FieldMetadata_PerfettoMetatrace =
-    ::protozero::proto_utils::FieldMetadata<
-      49,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      PerfettoMetatrace,
-      TracePacket>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_PerfettoMetatrace kPerfettoMetatrace() { return {}; }
-  template <typename T = PerfettoMetatrace> T* set_perfetto_metatrace() {
-    return BeginNestedMessage<T>(49);
-  }
-
-
-  using FieldMetadata_ChromeMetadata =
-    ::protozero::proto_utils::FieldMetadata<
-      51,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      ChromeMetadataPacket,
-      TracePacket>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_ChromeMetadata kChromeMetadata() { return {}; }
-  template <typename T = ChromeMetadataPacket> T* set_chrome_metadata() {
-    return BeginNestedMessage<T>(51);
-  }
-
-
-  using FieldMetadata_GpuCounterEvent =
-    ::protozero::proto_utils::FieldMetadata<
-      52,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      GpuCounterEvent,
-      TracePacket>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_GpuCounterEvent kGpuCounterEvent() { return {}; }
-  template <typename T = GpuCounterEvent> T* set_gpu_counter_event() {
-    return BeginNestedMessage<T>(52);
-  }
-
-
-  using FieldMetadata_GpuRenderStageEvent =
-    ::protozero::proto_utils::FieldMetadata<
-      53,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      GpuRenderStageEvent,
-      TracePacket>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_GpuRenderStageEvent kGpuRenderStageEvent() { return {}; }
-  template <typename T = GpuRenderStageEvent> T* set_gpu_render_stage_event() {
-    return BeginNestedMessage<T>(53);
-  }
-
-
-  using FieldMetadata_StreamingProfilePacket =
-    ::protozero::proto_utils::FieldMetadata<
-      54,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      StreamingProfilePacket,
-      TracePacket>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_StreamingProfilePacket kStreamingProfilePacket() { return {}; }
-  template <typename T = StreamingProfilePacket> T* set_streaming_profile_packet() {
-    return BeginNestedMessage<T>(54);
-  }
-
-
-  using FieldMetadata_HeapGraph =
-    ::protozero::proto_utils::FieldMetadata<
-      56,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      HeapGraph,
-      TracePacket>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_HeapGraph kHeapGraph() { return {}; }
-  template <typename T = HeapGraph> T* set_heap_graph() {
-    return BeginNestedMessage<T>(56);
-  }
-
-
-  using FieldMetadata_GraphicsFrameEvent =
-    ::protozero::proto_utils::FieldMetadata<
-      57,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      GraphicsFrameEvent,
-      TracePacket>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_GraphicsFrameEvent kGraphicsFrameEvent() { return {}; }
-  template <typename T = GraphicsFrameEvent> T* set_graphics_frame_event() {
-    return BeginNestedMessage<T>(57);
-  }
-
-
-  using FieldMetadata_VulkanMemoryEvent =
-    ::protozero::proto_utils::FieldMetadata<
-      62,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      VulkanMemoryEvent,
-      TracePacket>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_VulkanMemoryEvent kVulkanMemoryEvent() { return {}; }
-  template <typename T = VulkanMemoryEvent> T* set_vulkan_memory_event() {
-    return BeginNestedMessage<T>(62);
-  }
-
-
-  using FieldMetadata_GpuLog =
-    ::protozero::proto_utils::FieldMetadata<
-      63,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      GpuLog,
-      TracePacket>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_GpuLog kGpuLog() { return {}; }
-  template <typename T = GpuLog> T* set_gpu_log() {
-    return BeginNestedMessage<T>(63);
-  }
-
-
-  using FieldMetadata_VulkanApiEvent =
-    ::protozero::proto_utils::FieldMetadata<
-      65,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      VulkanApiEvent,
-      TracePacket>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_VulkanApiEvent kVulkanApiEvent() { return {}; }
-  template <typename T = VulkanApiEvent> T* set_vulkan_api_event() {
-    return BeginNestedMessage<T>(65);
-  }
-
-
-  using FieldMetadata_PerfSample =
-    ::protozero::proto_utils::FieldMetadata<
-      66,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      PerfSample,
-      TracePacket>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_PerfSample kPerfSample() { return {}; }
-  template <typename T = PerfSample> T* set_perf_sample() {
-    return BeginNestedMessage<T>(66);
-  }
-
-
-  using FieldMetadata_CpuInfo =
-    ::protozero::proto_utils::FieldMetadata<
-      67,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      CpuInfo,
-      TracePacket>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_CpuInfo kCpuInfo() { return {}; }
-  template <typename T = CpuInfo> T* set_cpu_info() {
-    return BeginNestedMessage<T>(67);
-  }
-
-
-  using FieldMetadata_SmapsPacket =
-    ::protozero::proto_utils::FieldMetadata<
-      68,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      SmapsPacket,
-      TracePacket>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_SmapsPacket kSmapsPacket() { return {}; }
-  template <typename T = SmapsPacket> T* set_smaps_packet() {
-    return BeginNestedMessage<T>(68);
-  }
-
-
-  using FieldMetadata_ServiceEvent =
-    ::protozero::proto_utils::FieldMetadata<
-      69,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      TracingServiceEvent,
-      TracePacket>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_ServiceEvent kServiceEvent() { return {}; }
-  template <typename T = TracingServiceEvent> T* set_service_event() {
-    return BeginNestedMessage<T>(69);
-  }
-
-
-  using FieldMetadata_InitialDisplayState =
-    ::protozero::proto_utils::FieldMetadata<
-      70,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      InitialDisplayState,
-      TracePacket>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_InitialDisplayState kInitialDisplayState() { return {}; }
-  template <typename T = InitialDisplayState> T* set_initial_display_state() {
-    return BeginNestedMessage<T>(70);
-  }
-
-
-  using FieldMetadata_GpuMemTotalEvent =
-    ::protozero::proto_utils::FieldMetadata<
-      71,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      GpuMemTotalEvent,
-      TracePacket>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_GpuMemTotalEvent kGpuMemTotalEvent() { return {}; }
-  template <typename T = GpuMemTotalEvent> T* set_gpu_mem_total_event() {
-    return BeginNestedMessage<T>(71);
-  }
-
-
-  using FieldMetadata_MemoryTrackerSnapshot =
-    ::protozero::proto_utils::FieldMetadata<
-      73,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      MemoryTrackerSnapshot,
-      TracePacket>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_MemoryTrackerSnapshot kMemoryTrackerSnapshot() { return {}; }
-  template <typename T = MemoryTrackerSnapshot> T* set_memory_tracker_snapshot() {
-    return BeginNestedMessage<T>(73);
-  }
-
-
-  using FieldMetadata_FrameTimelineEvent =
-    ::protozero::proto_utils::FieldMetadata<
-      76,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      FrameTimelineEvent,
-      TracePacket>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_FrameTimelineEvent kFrameTimelineEvent() { return {}; }
-  template <typename T = FrameTimelineEvent> T* set_frame_timeline_event() {
-    return BeginNestedMessage<T>(76);
-  }
-
-
-  using FieldMetadata_AndroidEnergyEstimationBreakdown =
-    ::protozero::proto_utils::FieldMetadata<
-      77,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      AndroidEnergyEstimationBreakdown,
-      TracePacket>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_AndroidEnergyEstimationBreakdown kAndroidEnergyEstimationBreakdown() { return {}; }
-  template <typename T = AndroidEnergyEstimationBreakdown> T* set_android_energy_estimation_breakdown() {
-    return BeginNestedMessage<T>(77);
-  }
-
-
-  using FieldMetadata_UiState =
-    ::protozero::proto_utils::FieldMetadata<
-      78,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      UiState,
-      TracePacket>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_UiState kUiState() { return {}; }
-  template <typename T = UiState> T* set_ui_state() {
-    return BeginNestedMessage<T>(78);
-  }
-
-
-  using FieldMetadata_ProfiledFrameSymbols =
-    ::protozero::proto_utils::FieldMetadata<
-      55,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      ProfiledFrameSymbols,
-      TracePacket>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_ProfiledFrameSymbols kProfiledFrameSymbols() { return {}; }
-  template <typename T = ProfiledFrameSymbols> T* set_profiled_frame_symbols() {
-    return BeginNestedMessage<T>(55);
-  }
-
-
-  using FieldMetadata_ModuleSymbols =
-    ::protozero::proto_utils::FieldMetadata<
-      61,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      ModuleSymbols,
-      TracePacket>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_ModuleSymbols kModuleSymbols() { return {}; }
-  template <typename T = ModuleSymbols> T* set_module_symbols() {
-    return BeginNestedMessage<T>(61);
-  }
-
-
-  using FieldMetadata_DeobfuscationMapping =
-    ::protozero::proto_utils::FieldMetadata<
-      64,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      DeobfuscationMapping,
-      TracePacket>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_DeobfuscationMapping kDeobfuscationMapping() { return {}; }
-  template <typename T = DeobfuscationMapping> T* set_deobfuscation_mapping() {
-    return BeginNestedMessage<T>(64);
-  }
-
-
-  using FieldMetadata_TrackDescriptor =
-    ::protozero::proto_utils::FieldMetadata<
-      60,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      TrackDescriptor,
-      TracePacket>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_TrackDescriptor kTrackDescriptor() { return {}; }
-  template <typename T = TrackDescriptor> T* set_track_descriptor() {
-    return BeginNestedMessage<T>(60);
-  }
-
-
-  using FieldMetadata_ProcessDescriptor =
-    ::protozero::proto_utils::FieldMetadata<
-      43,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      ProcessDescriptor,
-      TracePacket>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_ProcessDescriptor kProcessDescriptor() { return {}; }
-  template <typename T = ProcessDescriptor> T* set_process_descriptor() {
-    return BeginNestedMessage<T>(43);
-  }
-
-
-  using FieldMetadata_ThreadDescriptor =
-    ::protozero::proto_utils::FieldMetadata<
-      44,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      ThreadDescriptor,
-      TracePacket>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_ThreadDescriptor kThreadDescriptor() { return {}; }
-  template <typename T = ThreadDescriptor> T* set_thread_descriptor() {
-    return BeginNestedMessage<T>(44);
-  }
-
-
-  using FieldMetadata_FtraceEvents =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      FtraceEventBundle,
-      TracePacket>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_FtraceEvents kFtraceEvents() { return {}; }
-  template <typename T = FtraceEventBundle> T* set_ftrace_events() {
-    return BeginNestedMessage<T>(1);
-  }
-
-
-  using FieldMetadata_SynchronizationMarker =
-    ::protozero::proto_utils::FieldMetadata<
-      36,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kBytes,
-      std::string,
-      TracePacket>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_SynchronizationMarker kSynchronizationMarker() { return {}; }
-  void set_synchronization_marker(const uint8_t* data, size_t size) {
-    AppendBytes(FieldMetadata_SynchronizationMarker::kFieldId, data, size);
-  }
-  void set_synchronization_marker(std::string value) {
-    static constexpr uint32_t field_id = FieldMetadata_SynchronizationMarker::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kBytes>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_CompressedPackets =
-    ::protozero::proto_utils::FieldMetadata<
-      50,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kBytes,
-      std::string,
-      TracePacket>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_CompressedPackets kCompressedPackets() { return {}; }
-  void set_compressed_packets(const uint8_t* data, size_t size) {
-    AppendBytes(FieldMetadata_CompressedPackets::kFieldId, data, size);
-  }
-  void set_compressed_packets(std::string value) {
-    static constexpr uint32_t field_id = FieldMetadata_CompressedPackets::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kBytes>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_ExtensionDescriptor =
-    ::protozero::proto_utils::FieldMetadata<
-      72,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      ExtensionDescriptor,
-      TracePacket>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_ExtensionDescriptor kExtensionDescriptor() { return {}; }
-  template <typename T = ExtensionDescriptor> T* set_extension_descriptor() {
-    return BeginNestedMessage<T>(72);
-  }
-
-
-  using FieldMetadata_ForTesting =
-    ::protozero::proto_utils::FieldMetadata<
-      900,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      TestEvent,
-      TracePacket>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_ForTesting kForTesting() { return {}; }
-  template <typename T = TestEvent> T* set_for_testing() {
-    return BeginNestedMessage<T>(900);
-  }
-
-
-  using FieldMetadata_TrustedUid =
-    ::protozero::proto_utils::FieldMetadata<
-      3,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt32,
-      int32_t,
-      TracePacket>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_TrustedUid kTrustedUid() { return {}; }
-  void set_trusted_uid(int32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_TrustedUid::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_TrustedPacketSequenceId =
-    ::protozero::proto_utils::FieldMetadata<
-      10,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      TracePacket>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_TrustedPacketSequenceId kTrustedPacketSequenceId() { return {}; }
-  void set_trusted_packet_sequence_id(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_TrustedPacketSequenceId::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_InternedData =
-    ::protozero::proto_utils::FieldMetadata<
-      12,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      InternedData,
-      TracePacket>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_InternedData kInternedData() { return {}; }
-  template <typename T = InternedData> T* set_interned_data() {
-    return BeginNestedMessage<T>(12);
-  }
-
-
-  using FieldMetadata_SequenceFlags =
-    ::protozero::proto_utils::FieldMetadata<
-      13,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      TracePacket>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_SequenceFlags kSequenceFlags() { return {}; }
-  void set_sequence_flags(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_SequenceFlags::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_IncrementalStateCleared =
-    ::protozero::proto_utils::FieldMetadata<
-      41,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kBool,
-      bool,
-      TracePacket>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_IncrementalStateCleared kIncrementalStateCleared() { return {}; }
-  void set_incremental_state_cleared(bool value) {
-    static constexpr uint32_t field_id = FieldMetadata_IncrementalStateCleared::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kBool>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_TracePacketDefaults =
-    ::protozero::proto_utils::FieldMetadata<
-      59,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      TracePacketDefaults,
-      TracePacket>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_TracePacketDefaults kTracePacketDefaults() { return {}; }
-  template <typename T = TracePacketDefaults> T* set_trace_packet_defaults() {
-    return BeginNestedMessage<T>(59);
-  }
-
-
-  using FieldMetadata_PreviousPacketDropped =
-    ::protozero::proto_utils::FieldMetadata<
-      42,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kBool,
-      bool,
-      TracePacket>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_PreviousPacketDropped kPreviousPacketDropped() { return {}; }
-  void set_previous_packet_dropped(bool value) {
-    static constexpr uint32_t field_id = FieldMetadata_PreviousPacketDropped::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kBool>
-        ::Append(*this, field_id, value);
-  }
-};
-
-} // Namespace.
-} // Namespace.
-} // Namespace.
-#endif  // Include guard.
-/*
- * Copyright (C) 2019 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef INCLUDE_PERFETTO_TRACING_DATA_SOURCE_H_
-#define INCLUDE_PERFETTO_TRACING_DATA_SOURCE_H_
-
-// This header contains the key class (DataSource) that a producer app should
-// override in order to create a custom data source that gets tracing Start/Stop
-// notifications and emits tracing data.
-
-#include <assert.h>
-#include <stddef.h>
-#include <stdint.h>
-
-#include <array>
-#include <atomic>
-#include <functional>
-#include <memory>
-#include <mutex>
-
-// gen_amalgamated expanded: #include "perfetto/base/build_config.h"
-// gen_amalgamated expanded: #include "perfetto/base/compiler.h"
-// gen_amalgamated expanded: #include "perfetto/base/export.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/message.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/message_handle.h"
-// gen_amalgamated expanded: #include "perfetto/tracing/buffer_exhausted_policy.h"
-// gen_amalgamated expanded: #include "perfetto/tracing/core/forward_decls.h"
-// gen_amalgamated expanded: #include "perfetto/tracing/internal/basic_types.h"
-// gen_amalgamated expanded: #include "perfetto/tracing/internal/data_source_internal.h"
-// gen_amalgamated expanded: #include "perfetto/tracing/internal/tracing_muxer.h"
-// gen_amalgamated expanded: #include "perfetto/tracing/locked_handle.h"
-// gen_amalgamated expanded: #include "perfetto/tracing/trace_writer_base.h"
-
-// gen_amalgamated expanded: #include "protos/perfetto/trace/trace_packet.pbzero.h"
-
-// PERFETTO_COMPONENT_EXPORT is used to mark symbols in Perfetto's headers
-// (typically templates) that are defined by the user outside of Perfetto and
-// should be made visible outside the current module. (e.g., in Chrome's
-// component build).
-#if !defined(PERFETTO_COMPONENT_EXPORT)
-#define PERFETTO_COMPONENT_EXPORT
-#endif
-
-namespace perfetto {
-namespace internal {
-class TracingMuxerImpl;
-class TrackEventCategoryRegistry;
-template <typename, const internal::TrackEventCategoryRegistry*>
-class TrackEventDataSource;
-}  // namespace internal
-
-// Base class with the virtual methods to get start/stop notifications.
-// Embedders are supposed to derive the templated version below, not this one.
-class PERFETTO_EXPORT DataSourceBase {
- public:
-  virtual ~DataSourceBase();
-
-  // TODO(primiano): change the const& args below to be pointers instead. It
-  // makes it more awkward to handle output arguments and require mutable(s).
-  // This requires synchronizing a breaking API change for existing embedders.
-
-  // OnSetup() is invoked when tracing is configured. In most cases this happens
-  // just before starting the trace. In the case of deferred start (see
-  // deferred_start in trace_config.proto) start might happen later.
-  class SetupArgs {
-   public:
-    // This is valid only within the scope of the OnSetup() call and must not
-    // be retained.
-    const DataSourceConfig* config = nullptr;
-
-    // The index of this data source instance (0..kMaxDataSourceInstances - 1).
-    uint32_t internal_instance_index = 0;
-  };
-  virtual void OnSetup(const SetupArgs&);
-
-  class StartArgs {
-   public:
-    // The index of this data source instance (0..kMaxDataSourceInstances - 1).
-    uint32_t internal_instance_index = 0;
-  };
-  virtual void OnStart(const StartArgs&);
-
-  class StopArgs {
-   public:
-    virtual ~StopArgs();
-
-    // HandleAsynchronously() can optionally be called to defer the tracing
-    // session stop and write tracing data just before stopping.
-    // This function returns a closure that must be invoked after the last
-    // trace events have been emitted. The returned closure can be called from
-    // any thread. The caller also needs to explicitly call TraceContext.Flush()
-    // from the last Trace() lambda invocation because no other implicit flushes
-    // will happen after the stop signal.
-    // When this function is called, the tracing service will defer the stop of
-    // the tracing session until the returned closure is invoked.
-    // However, the caller cannot hang onto this closure for too long. The
-    // tracing service will forcefully stop the tracing session without waiting
-    // for pending producers after TraceConfig.data_source_stop_timeout_ms
-    // (default: 5s, can be overridden by Consumers when starting a trace).
-    // If the closure is called after this timeout an error will be logged and
-    // the trace data emitted will not be present in the trace. No other
-    // functional side effects (e.g. crashes or corruptions) will happen. In
-    // other words, it is fine to accidentally hold onto this closure for too
-    // long but, if that happens, some tracing data will be lost.
-    virtual std::function<void()> HandleStopAsynchronously() const = 0;
-
-    // The index of this data source instance (0..kMaxDataSourceInstances - 1).
-    uint32_t internal_instance_index = 0;
-  };
-  virtual void OnStop(const StopArgs&);
-};
-
-struct DefaultDataSourceTraits {
-  // |IncrementalStateType| can optionally be used store custom per-sequence
-  // incremental data (e.g., interning tables). It should have a Clear() method
-  // for when incremental state needs to be cleared. See
-  // TraceContext::GetIncrementalState().
-  using IncrementalStateType = void;
-
-  // Allows overriding what type of thread-local state configuration the data
-  // source uses. By default every data source gets independent thread-local
-  // state, which means every instance uses separate trace writers and
-  // incremental state even on the same thread. Some data sources (most notably
-  // the track event data source) want to share trace writers and incremental
-  // state on the same thread.
-  static internal::DataSourceThreadLocalState* GetDataSourceTLS(
-      internal::DataSourceStaticState* static_state,
-      internal::TracingTLS* root_tls) {
-    auto* ds_tls = &root_tls->data_sources_tls[static_state->index];
-    // The per-type TLS is either zero-initialized or must have been initialized
-    // for this specific data source type.
-    assert(!ds_tls->static_state ||
-           ds_tls->static_state->index == static_state->index);
-    return ds_tls;
-  }
-};
-
-// Templated base class meant to be derived by embedders to create a custom data
-// source. DataSourceType must be the type of the derived class itself, e.g.:
-// class MyDataSource : public DataSourceBase<MyDataSource> {...}.
-//
-// |DataSourceTraits| allows customizing the behavior of the data source. See
-// |DefaultDataSourceTraits|.
-template <typename DataSourceType,
-          typename DataSourceTraits = DefaultDataSourceTraits>
-class DataSource : public DataSourceBase {
-  struct DefaultTracePointTraits;
-
- public:
-  // The BufferExhaustedPolicy to use for TraceWriters of this DataSource.
-  // Override this in your DataSource class to change the default, which is to
-  // drop data on shared memory overruns.
-  constexpr static BufferExhaustedPolicy kBufferExhaustedPolicy =
-      BufferExhaustedPolicy::kDrop;
-
-  // Argument passed to the lambda function passed to Trace() (below).
-  class TraceContext {
-   public:
-    using TracePacketHandle =
-        ::protozero::MessageHandle<::perfetto::protos::pbzero::TracePacket>;
-
-    TraceContext(TraceContext&&) noexcept = default;
-    ~TraceContext() {
-      // If the data source is being intercepted, flush the trace writer after
-      // each trace point to make sure the interceptor sees the data right away.
-      if (PERFETTO_UNLIKELY(tls_inst_->is_intercepted))
-        Flush();
-    }
-
-    TracePacketHandle NewTracePacket() {
-      return tls_inst_->trace_writer->NewTracePacket();
-    }
-
-    // Forces a commit of the thread-local tracing data written so far to the
-    // service. This is almost never required (tracing data is periodically
-    // committed as trace pages are filled up) and has a non-negligible
-    // performance hit (requires an IPC + refresh of the current thread-local
-    // chunk). The only case when this should be used is when handling OnStop()
-    // asynchronously, to ensure sure that the data is committed before the
-    // Stop timeout expires.
-    // The TracePacketHandle obtained by the last NewTracePacket() call must be
-    // finalized before calling Flush() (either implicitly by going out of scope
-    // or by explicitly calling Finalize()).
-    // |cb| is an optional callback. When non-null it will request the
-    // service to ACK the flush and will be invoked on an internal thread after
-    // the service has  acknowledged it. The callback might be NEVER INVOKED if
-    // the service crashes or the IPC connection is dropped.
-    void Flush(std::function<void()> cb = {}) {
-      tls_inst_->trace_writer->Flush(cb);
-    }
-
-    // Returns the number of bytes written on the current thread by the current
-    // data-source since its creation.
-    // This can be useful for splitting protos that might grow very large.
-    uint64_t written() { return tls_inst_->trace_writer->written(); }
-
-    // Returns a RAII handle to access the data source instance, guaranteeing
-    // that it won't be deleted on another thread (because of trace stopping)
-    // while accessing it from within the Trace() lambda.
-    // The returned handle can be invalid (nullptr) if tracing is stopped
-    // immediately before calling this. The caller is supposed to check for its
-    // validity before using it. After checking, the handle is guaranteed to
-    // remain valid until the handle goes out of scope.
-    LockedHandle<DataSourceType> GetDataSourceLocked() {
-      auto* internal_state = static_state_.TryGet(instance_index_);
-      if (!internal_state)
-        return LockedHandle<DataSourceType>();
-      return LockedHandle<DataSourceType>(
-          &internal_state->lock,
-          static_cast<DataSourceType*>(internal_state->data_source.get()));
-    }
-
-    typename DataSourceTraits::IncrementalStateType* GetIncrementalState() {
-      // Recreate incremental state data if it has been reset by the service.
-      if (tls_inst_->incremental_state_generation !=
-          static_state_.incremental_state_generation.load(
-              std::memory_order_relaxed)) {
-        tls_inst_->incremental_state.reset();
-        CreateIncrementalState(tls_inst_);
-      }
-      return reinterpret_cast<typename DataSourceTraits::IncrementalStateType*>(
-          tls_inst_->incremental_state.get());
-    }
-
-   private:
-    friend class DataSource;
-    template <typename, const internal::TrackEventCategoryRegistry*>
-    friend class internal::TrackEventDataSource;
-    TraceContext(internal::DataSourceInstanceThreadLocalState* tls_inst,
-                 uint32_t instance_index)
-        : tls_inst_(tls_inst), instance_index_(instance_index) {}
-    TraceContext(const TraceContext&) = delete;
-    TraceContext& operator=(const TraceContext&) = delete;
-
-    internal::DataSourceInstanceThreadLocalState* const tls_inst_;
-    uint32_t const instance_index_;
-  };
-
-  // The main tracing method. Tracing code should call this passing a lambda as
-  // argument, with the following signature: void(TraceContext).
-  // The lambda will be called synchronously (i.e., always before Trace()
-  // returns) only if tracing is enabled and the data source has been enabled in
-  // the tracing config.
-  // The lambda can be called more than once per Trace() call, in the case of
-  // concurrent tracing sessions (or even if the data source is instantiated
-  // twice within the same trace config).
-  template <typename Lambda>
-  static void Trace(Lambda tracing_fn) {
-    CallIfEnabled<DefaultTracePointTraits>([&tracing_fn](uint32_t instances) {
-      TraceWithInstances<DefaultTracePointTraits>(instances,
-                                                  std::move(tracing_fn));
-    });
-  }
-
-  // An efficient trace point guard for checking if this data source is active.
-  // |callback| is a function which will only be called if there are active
-  // instances. It is given an instance state parameter, which should be passed
-  // to TraceWithInstances() to actually record trace data.
-  template <typename Traits = DefaultTracePointTraits, typename Callback>
-  static void CallIfEnabled(Callback callback,
-                            typename Traits::TracePointData trace_point_data =
-                                {}) PERFETTO_ALWAYS_INLINE {
-    // |instances| is a per-class bitmap that tells:
-    // 1. If the data source is enabled at all.
-    // 2. The index of the slot within |static_state_| that holds the instance
-    //    state. In turn this allows to map the data source to the tracing
-    //    session and buffers.
-    // memory_order_relaxed is okay because:
-    // - |instances| is re-read with an acquire barrier below if this succeeds.
-    // - The code between this point and the acquire-load is based on static
-    //    storage which has indefinite lifetime.
-    uint32_t instances = Traits::GetActiveInstances(trace_point_data)
-                             ->load(std::memory_order_relaxed);
-
-    // This is the tracing fast-path. Bail out immediately if tracing is not
-    // enabled (or tracing is enabled but not for this data source).
-    if (PERFETTO_LIKELY(!instances))
-      return;
-    callback(instances);
-  }
-
-  // The "lower half" of a trace point which actually performs tracing after
-  // this data source has been determined to be active.
-  // |instances| must be the instance state value retrieved through
-  // CallIfEnabled().
-  // |tracing_fn| will be called to record trace data as in Trace().
-  //
-  // |trace_point_data| is an optional parameter given to |Traits::
-  // GetActiveInstances| to make it possible to use custom storage for
-  // the data source enabled state. This is, for example, used by TrackEvent to
-  // implement per-tracing category enabled states.
-  //
-  // TODO(primiano): all the stuff below should be outlined from the trace
-  // point. Or at least we should have some compile-time traits like
-  // kOptimizeBinarySize / kOptimizeTracingLatency.
-  template <typename Traits = DefaultTracePointTraits, typename Lambda>
-  static void TraceWithInstances(
-      uint32_t instances,
-      Lambda tracing_fn,
-      typename Traits::TracePointData trace_point_data = {}) {
-    PERFETTO_DCHECK(instances);
-    constexpr auto kMaxDataSourceInstances = internal::kMaxDataSourceInstances;
-
-    // See tracing_muxer.h for the structure of the TLS.
-    auto* tracing_impl = internal::TracingMuxer::Get();
-    if (PERFETTO_UNLIKELY(!tls_state_))
-      tls_state_ = GetOrCreateDataSourceTLS(&static_state_);
-
-    // Avoid re-entering the trace point recursively.
-    if (PERFETTO_UNLIKELY(tls_state_->root_tls->is_in_trace_point))
-      return;
-    internal::ScopedReentrancyAnnotator scoped_annotator(*tls_state_->root_tls);
-
-    // TracingTLS::generation is a global monotonic counter that is incremented
-    // every time a tracing session is stopped. We use that as a signal to force
-    // a slow-path garbage collection of all the trace writers for the current
-    // thread and to destroy the ones that belong to tracing sessions that have
-    // ended. This is to avoid having too many TraceWriter instances alive, each
-    // holding onto one chunk of the shared memory buffer.
-    // Rationale why memory_order_relaxed should be fine:
-    // - The TraceWriter object that we use is always constructed and destructed
-    //   on the current thread. There is no risk of accessing a half-initialized
-    //   TraceWriter (which would be really bad).
-    // - In the worst case, in the case of a race on the generation check, we
-    //   might end up using a TraceWriter for the same data source that belongs
-    //   to a stopped session. This is not really wrong, as we don't give any
-    //   guarantee on the global atomicity of the stop. In the worst case the
-    //   service will reject the data commit if this arrives too late.
-
-    if (PERFETTO_UNLIKELY(
-            tls_state_->root_tls->generation !=
-            tracing_impl->generation(std::memory_order_relaxed))) {
-      // Will update root_tls->generation.
-      tracing_impl->DestroyStoppedTraceWritersForCurrentThread();
-    }
-
-    for (uint32_t i = 0; i < kMaxDataSourceInstances; i++) {
-      internal::DataSourceState* instance_state =
-          static_state_.TryGetCached(instances, i);
-      if (!instance_state)
-        continue;
-
-      // Even if we passed the check above, the DataSourceInstance might be
-      // still destroyed concurrently while this code runs. The code below is
-      // designed to deal with such race, as follows:
-      // - We don't access the user-defined data source instance state. The only
-      //   bits of state we use are |backend_id| and |buffer_id|.
-      // - Beyond those two integers, we access only the TraceWriter here. The
-      //   TraceWriter is always safe because it lives on the TLS.
-      // - |instance_state| is backed by static storage, so the pointer is
-      //   always valid, even after the data source instance is destroyed.
-      // - In the case of a race-on-destruction, we'll still see the latest
-      //   backend_id and buffer_id and in the worst case keep trying writing
-      //   into the tracing shared memory buffer after stopped. But this isn't
-      //   really any worse than the case of the stop IPC being delayed by the
-      //   kernel scheduler. The tracing service is robust against data commit
-      //   attemps made after tracing is stopped.
-      // There is a theoretical race that would case the wrong behavior w.r.t
-      // writing data in the wrong buffer, but it's so rare that we ignore it:
-      // if the data source is stopped and started kMaxDataSourceInstances
-      // times (so that the same id is recycled) while we are in this function,
-      // we might end up reusing the old data source's backend_id and buffer_id
-      // for the new one, because we don't see the generation change past this
-      // point. But stopping and starting tracing (even once) takes so much
-      // handshaking to make this extremely unrealistic.
-
-      auto& tls_inst = tls_state_->per_instance[i];
-      if (PERFETTO_UNLIKELY(!tls_inst.trace_writer)) {
-        // Here we need an acquire barrier, which matches the release-store made
-        // by TracingMuxerImpl::SetupDataSource(), to ensure that the backend_id
-        // and buffer_id are consistent.
-        instances = Traits::GetActiveInstances(trace_point_data)
-                        ->load(std::memory_order_acquire);
-        instance_state = static_state_.TryGetCached(instances, i);
-        if (!instance_state || !instance_state->trace_lambda_enabled)
-          continue;
-        tls_inst.backend_id = instance_state->backend_id;
-        tls_inst.backend_connection_id = instance_state->backend_connection_id;
-        tls_inst.buffer_id = instance_state->buffer_id;
-        tls_inst.data_source_instance_id =
-            instance_state->data_source_instance_id;
-        tls_inst.is_intercepted = instance_state->interceptor_id != 0;
-        tls_inst.trace_writer = tracing_impl->CreateTraceWriter(
-            &static_state_, i, instance_state,
-            DataSourceType::kBufferExhaustedPolicy);
-        CreateIncrementalState(&tls_inst);
-
-        // Even in the case of out-of-IDs, SharedMemoryArbiterImpl returns a
-        // NullTraceWriter. The returned pointer should never be null.
-        assert(tls_inst.trace_writer);
-      }
-
-      tracing_fn(TraceContext(&tls_inst, i));
-    }
-  }
-
-  // Registers the data source on all tracing backends, including ones that
-  // connect after the registration. Doing so enables the data source to receive
-  // Setup/Start/Stop notifications and makes the Trace() method work when
-  // tracing is enabled and the data source is selected.
-  // This must be called after Tracing::Initialize().
-  // Can return false to signal failure if attemping to register more than
-  // kMaxDataSources (32) data sources types or if tracing hasn't been
-  // initialized.
-  // The optional |constructor_args| will be passed to the data source when it
-  // is constructed.
-  template <class... Args>
-  static bool Register(const DataSourceDescriptor& descriptor,
-                       const Args&... constructor_args) {
-    // Silences -Wunused-variable warning in case the trace method is not used
-    // by the translation unit that declares the data source.
-    (void)static_state_;
-    (void)tls_state_;
-
-    auto factory = [constructor_args...]() {
-      return std::unique_ptr<DataSourceBase>(
-          new DataSourceType(constructor_args...));
-    };
-    auto* tracing_impl = internal::TracingMuxer::Get();
-    return tracing_impl->RegisterDataSource(descriptor, factory,
-                                            &static_state_);
-  }
-
- private:
-  // Traits for customizing the behavior of a specific trace point.
-  struct DefaultTracePointTraits {
-    // By default, every call to DataSource::Trace() will record trace events
-    // for every active instance of that data source. A single trace point can,
-    // however, use a custom set of enable flags for more fine grained control
-    // of when that trace point is active.
-    //
-    // DANGER: when doing this, the data source must use the appropriate memory
-    // fences when changing the state of the bitmap.
-    //
-    // |TraceWithInstances| may be optionally given an additional parameter for
-    // looking up the enable flags. That parameter is passed as |TracePointData|
-    // to |GetActiveInstances|. This is, for example, used by TrackEvent to
-    // implement per-category enabled states.
-    struct TracePointData {};
-    static constexpr std::atomic<uint32_t>* GetActiveInstances(TracePointData) {
-      return &static_state_.valid_instances;
-    }
-  };
-
-  // Create the user provided incremental state in the given thread-local
-  // storage. Note: The second parameter here is used to specialize the case
-  // where there is no incremental state type.
-  template <typename T>
-  static void CreateIncrementalStateImpl(
-      internal::DataSourceInstanceThreadLocalState* tls_inst,
-      const T*) {
-    PERFETTO_DCHECK(!tls_inst->incremental_state);
-    tls_inst->incremental_state_generation =
-        static_state_.incremental_state_generation.load(
-            std::memory_order_relaxed);
-    tls_inst->incremental_state =
-        internal::DataSourceInstanceThreadLocalState::IncrementalStatePointer(
-            reinterpret_cast<void*>(new T()),
-            [](void* p) { delete reinterpret_cast<T*>(p); });
-  }
-
-  static void CreateIncrementalStateImpl(
-      internal::DataSourceInstanceThreadLocalState*,
-      const void*) {}
-
-  static void CreateIncrementalState(
-      internal::DataSourceInstanceThreadLocalState* tls_inst) {
-    CreateIncrementalStateImpl(
-        tls_inst,
-        static_cast<typename DataSourceTraits::IncrementalStateType*>(nullptr));
-  }
-
-  // Note that the returned object is one per-thread per-data-source-type, NOT
-  // per data-source *instance*.
-  static internal::DataSourceThreadLocalState* GetOrCreateDataSourceTLS(
-      internal::DataSourceStaticState* static_state) {
-#if PERFETTO_BUILDFLAG(PERFETTO_OS_IOS)
-    PERFETTO_FATAL("Data source TLS not supported on iOS, see b/158814068");
-#endif
-    auto* tracing_impl = internal::TracingMuxer::Get();
-    internal::TracingTLS* root_tls = tracing_impl->GetOrCreateTracingTLS();
-    internal::DataSourceThreadLocalState* ds_tls =
-        DataSourceTraits::GetDataSourceTLS(static_state, root_tls);
-    // We keep re-initializing as the initialization is idempotent and not worth
-    // the code for extra checks.
-    ds_tls->static_state = static_state;
-    assert(!ds_tls->root_tls || ds_tls->root_tls == root_tls);
-    ds_tls->root_tls = root_tls;
-    return ds_tls;
-  }
-
-  // Static state. Accessed by the static Trace() method fastpaths.
-  static internal::DataSourceStaticState static_state_;
-
-  // This TLS object is a cached raw pointer and has deliberately no destructor.
-  // The Platform implementation is supposed to create and manage the lifetime
-  // of the Platform::ThreadLocalObject and take care of destroying it.
-  // This is because non-POD thread_local variables have subtleties (global
-  // destructors) that we need to defer to the embedder. In chromium's platform
-  // implementation, for instance, the tls slot is implemented using
-  // chromium's base::ThreadLocalStorage.
-  static PERFETTO_THREAD_LOCAL internal::DataSourceThreadLocalState* tls_state_;
-};
-
-// static
-template <typename T, typename D>
-internal::DataSourceStaticState DataSource<T, D>::static_state_;
-// static
-template <typename T, typename D>
-PERFETTO_THREAD_LOCAL internal::DataSourceThreadLocalState*
-    DataSource<T, D>::tls_state_;
-
-}  // namespace perfetto
-
-// If placed at the end of a macro declaration, eats the semicolon at the end of
-// the macro invocation (e.g., "MACRO(...);") to avoid warnings about extra
-// semicolons.
-#define PERFETTO_INTERNAL_SWALLOW_SEMICOLON() \
-  extern int perfetto_internal_unused
-
-// This macro must be used once for each data source next to the data source's
-// declaration.
-#define PERFETTO_DECLARE_DATA_SOURCE_STATIC_MEMBERS(...)              \
-  template <>                                                         \
-  PERFETTO_COMPONENT_EXPORT perfetto::internal::DataSourceStaticState \
-      perfetto::DataSource<__VA_ARGS__>::static_state_;               \
-  template <>                                                         \
-  PERFETTO_COMPONENT_EXPORT PERFETTO_THREAD_LOCAL                     \
-      perfetto::internal::DataSourceThreadLocalState*                 \
-          perfetto::DataSource<__VA_ARGS__>::tls_state_
-
-// MSVC has a bug where explicit template member specialization declarations
-// can't have thread_local as the storage class specifier. The generated code
-// seems correct without the specifier, so drop it until the bug gets fixed.
-// See https://developercommunity2.visualstudio.com/t/Unable-to-specialize-
-// static-thread_local/1302689.
-#if PERFETTO_BUILDFLAG(PERFETTO_COMPILER_MSVC)
-#define PERFETTO_TEMPLATE_THREAD_LOCAL
-#else
-#define PERFETTO_TEMPLATE_THREAD_LOCAL PERFETTO_THREAD_LOCAL
-#endif
-
-// This macro must be used once for each data source in one source file to
-// allocate static storage for the data source's static state.
-//
-// Note: if MSVC fails with a C2086 (redefinition) error here, use the
-// permissive- flag to enable standards-compliant mode. See
-// https://developercommunity.visualstudio.com/content/problem/319447/
-// explicit-specialization-of-static-data-member-inco.html.
-#define PERFETTO_DEFINE_DATA_SOURCE_STATIC_MEMBERS(...)               \
-  template <>                                                         \
-  PERFETTO_COMPONENT_EXPORT perfetto::internal::DataSourceStaticState \
-      perfetto::DataSource<__VA_ARGS__>::static_state_{};             \
-  template <>                                                         \
-  PERFETTO_COMPONENT_EXPORT PERFETTO_TEMPLATE_THREAD_LOCAL            \
-      perfetto::internal::DataSourceThreadLocalState*                 \
-          perfetto::DataSource<__VA_ARGS__>::tls_state_ = nullptr
-
-#endif  // INCLUDE_PERFETTO_TRACING_DATA_SOURCE_H_
-// gen_amalgamated begin header: include/perfetto/tracing/tracing.h
-// gen_amalgamated begin header: include/perfetto/tracing/backend_type.h
-/*
- * Copyright (C) 2021 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef INCLUDE_PERFETTO_TRACING_BACKEND_TYPE_H_
-#define INCLUDE_PERFETTO_TRACING_BACKEND_TYPE_H_
-
-#include <stdint.h>
-
-namespace perfetto {
-
-enum BackendType : uint32_t {
-  kUnspecifiedBackend = 0,
-
-  // Connects to a previously-initialized perfetto tracing backend for
-  // in-process. If the in-process backend has not been previously initialized
-  // it will do so and create the tracing service on a dedicated thread.
-  kInProcessBackend = 1 << 0,
-
-  // Connects to the system tracing service (e.g. on Linux/Android/Mac uses a
-  // named UNIX socket).
-  kSystemBackend = 1 << 1,
-
-  // Used to provide a custom IPC transport to connect to the service.
-  // TracingInitArgs::custom_backend must be non-null and point to an
-  // indefinitely lived instance.
-  kCustomBackend = 1 << 2,
-};
-
-}  // namespace perfetto
-
-#endif  // INCLUDE_PERFETTO_TRACING_BACKEND_TYPE_H_
-// gen_amalgamated begin header: include/perfetto/tracing/internal/in_process_tracing_backend.h
-// gen_amalgamated begin header: include/perfetto/tracing/tracing_backend.h
-/*
- * Copyright (C) 2019 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef INCLUDE_PERFETTO_TRACING_TRACING_BACKEND_H_
-#define INCLUDE_PERFETTO_TRACING_TRACING_BACKEND_H_
-
-#include <memory>
-#include <string>
-
-// gen_amalgamated expanded: #include "perfetto/base/export.h"
-
-// The embedder can (but doesn't have to) extend the TracingBackend class and
-// pass as an argument to Tracing::Initialize(kCustomBackend) to override the
-// way to reach the service. This is for peculiar cases where the embedder has
-// a multi-process architecture and wants to override the IPC transport. The
-// real use-case for this at the time of writing is chromium (+ Mojo IPC).
-// Extending this class requires depending on the full set of perfetto headers
-// (not just /public/). Contact the team before doing so as the non-public
-// headers are not guaranteed to be API stable.
-
-namespace perfetto {
-
-namespace base {
-class TaskRunner;
-}
-
-// These classes are declared in headers outside of /public/.
-class Consumer;
-class ConsumerEndpoint;
-class Producer;
-class ProducerEndpoint;
-
-class PERFETTO_EXPORT TracingBackend {
- public:
-  virtual ~TracingBackend();
-
-  // Connects a Producer instance and obtains a ProducerEndpoint, which is
-  // essentially a 1:1 channel between one Producer and the Service.
-  // To disconnect just destroy the returned endpoint object. It is safe to
-  // destroy the Producer once Producer::OnDisconnect() has been invoked.
-  struct ConnectProducerArgs {
-    std::string producer_name;
-
-    // The Producer object that will receive calls like Start/StopDataSource().
-    // The caller has to guarantee that this object is valid as long as the
-    // returned ProducerEndpoint is alive.
-    Producer* producer = nullptr;
-
-    // The task runner where the Producer methods will be called onto.
-    // The caller has to guarantee that the passed TaskRunner is valid as long
-    // as the returned ProducerEndpoint is alive.
-    ::perfetto::base::TaskRunner* task_runner = nullptr;
-
-    // These get propagated from TracingInitArgs and are optionally provided by
-    // the client when calling Tracing::Initialize().
-    uint32_t shmem_size_hint_bytes = 0;
-    uint32_t shmem_page_size_hint_bytes = 0;
-  };
-
-  virtual std::unique_ptr<ProducerEndpoint> ConnectProducer(
-      const ConnectProducerArgs&) = 0;
-
-  // As above, for the Consumer-side.
-  struct ConnectConsumerArgs {
-    // The Consumer object that will receive calls like OnTracingDisabled(),
-    // OnTraceData().
-    Consumer* consumer{};
-
-    // The task runner where the Consumer methods will be called onto.
-    ::perfetto::base::TaskRunner* task_runner{};
-  };
-  virtual std::unique_ptr<ConsumerEndpoint> ConnectConsumer(
-      const ConnectConsumerArgs&) = 0;
-};
-
-}  // namespace perfetto
-
-#endif  // INCLUDE_PERFETTO_TRACING_TRACING_BACKEND_H_
-/*
- * Copyright (C) 2019 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef INCLUDE_PERFETTO_TRACING_INTERNAL_IN_PROCESS_TRACING_BACKEND_H_
-#define INCLUDE_PERFETTO_TRACING_INTERNAL_IN_PROCESS_TRACING_BACKEND_H_
-
-// gen_amalgamated expanded: #include "perfetto/base/export.h"
-// gen_amalgamated expanded: #include "perfetto/tracing/tracing_backend.h"
-
-namespace perfetto {
-
-namespace base {
-class TaskRunner;
-}
-
-class Producer;
-class TracingService;
-
-namespace internal {
-
-// A built-in implementation of TracingBackend that creates a tracing service
-// instance in-process. Instantiated when the embedder calls
-// Tracing::Initialize(kInProcessBackend). Solves most in-app-only tracing
-// use-cases.
-class PERFETTO_EXPORT InProcessTracingBackend : public TracingBackend {
- public:
-  static TracingBackend* GetInstance();
-
-  // TracingBackend implementation.
-  std::unique_ptr<ProducerEndpoint> ConnectProducer(
-      const ConnectProducerArgs&) override;
-  std::unique_ptr<ConsumerEndpoint> ConnectConsumer(
-      const ConnectConsumerArgs&) override;
-
- private:
-  InProcessTracingBackend();
-  TracingService* GetOrCreateService(base::TaskRunner*);
-
-  std::unique_ptr<TracingService> service_;
-};
-
-}  // namespace internal
-}  // namespace perfetto
-
-#endif  // INCLUDE_PERFETTO_TRACING_INTERNAL_IN_PROCESS_TRACING_BACKEND_H_
-// gen_amalgamated begin header: include/perfetto/tracing/internal/system_tracing_backend.h
-/*
- * Copyright (C) 2019 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef INCLUDE_PERFETTO_TRACING_INTERNAL_SYSTEM_TRACING_BACKEND_H_
-#define INCLUDE_PERFETTO_TRACING_INTERNAL_SYSTEM_TRACING_BACKEND_H_
-
-// gen_amalgamated expanded: #include "perfetto/base/export.h"
-// gen_amalgamated expanded: #include "perfetto/tracing/tracing_backend.h"
-
-namespace perfetto {
-
-namespace base {
-class TaskRunner;
-}
-
-class Producer;
-
-// A built-in implementation of TracingBackend that connects to the system
-// tracing daemon (traced) via a UNIX socket using the perfetto built-in
-// proto-based IPC mechanism. Instantiated when the embedder calls
-// Tracing::Initialize(kSystemBackend). It allows to get app-traces fused
-// together with system traces, useful to correlate on the timeline system
-// events (e.g. scheduling slices from the kernel) with in-app events.
-namespace internal {
-class PERFETTO_EXPORT SystemTracingBackend : public TracingBackend {
- public:
-  static TracingBackend* GetInstance();
-
-  // TracingBackend implementation.
-  std::unique_ptr<ProducerEndpoint> ConnectProducer(
-      const ConnectProducerArgs&) override;
-  std::unique_ptr<ConsumerEndpoint> ConnectConsumer(
-      const ConnectConsumerArgs&) override;
-
- private:
-  SystemTracingBackend();
-};
-
-}  // namespace internal
-}  // namespace perfetto
-
-#endif  // INCLUDE_PERFETTO_TRACING_INTERNAL_SYSTEM_TRACING_BACKEND_H_
-// gen_amalgamated begin header: include/perfetto/tracing/tracing_policy.h
-/*
- * Copyright (C) 2021 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef INCLUDE_PERFETTO_TRACING_TRACING_POLICY_H_
-#define INCLUDE_PERFETTO_TRACING_TRACING_POLICY_H_
-
-#include <functional>
-
-// gen_amalgamated expanded: #include "perfetto/base/export.h"
-// gen_amalgamated expanded: #include "perfetto/tracing/backend_type.h"
-
-namespace perfetto {
-
-// Applies policy decisions, such as allowing or denying connections, when
-// certain tracing SDK events occur. All methods are called on an internal
-// perfetto thread.
-class PERFETTO_EXPORT TracingPolicy {
- public:
-  virtual ~TracingPolicy();
-
-  // Called when the current process attempts to connect a new consumer to the
-  // backend of |backend_type| to check if the connection should be allowed. Its
-  // implementation should execute |result_callback| with the result of the
-  // check (synchronuosly or asynchronously on any thread). If the result is
-  // false, the consumer connection is aborted. Chrome uses this to restrict
-  // creating (system) tracing sessions based on an enterprise policy.
-  struct ShouldAllowConsumerSessionArgs {
-    BackendType backend_type;
-    std::function<void(bool /*allow*/)> result_callback;
-  };
-  virtual void ShouldAllowConsumerSession(
-      const ShouldAllowConsumerSessionArgs&) = 0;
-};
-
-}  // namespace perfetto
-
-#endif  // INCLUDE_PERFETTO_TRACING_TRACING_POLICY_H_
-/*
- * Copyright (C) 2019 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef INCLUDE_PERFETTO_TRACING_TRACING_H_
-#define INCLUDE_PERFETTO_TRACING_TRACING_H_
-
-#include <stddef.h>
-#include <stdint.h>
-
-#include <functional>
-#include <memory>
-#include <string>
-#include <vector>
-
-// gen_amalgamated expanded: #include "perfetto/base/compiler.h"
-// gen_amalgamated expanded: #include "perfetto/base/export.h"
-// gen_amalgamated expanded: #include "perfetto/base/logging.h"
-// gen_amalgamated expanded: #include "perfetto/tracing/backend_type.h"
-// gen_amalgamated expanded: #include "perfetto/tracing/core/forward_decls.h"
-// gen_amalgamated expanded: #include "perfetto/tracing/internal/in_process_tracing_backend.h"
-// gen_amalgamated expanded: #include "perfetto/tracing/internal/system_tracing_backend.h"
-// gen_amalgamated expanded: #include "perfetto/tracing/tracing_policy.h"
-
-namespace perfetto {
-
-namespace internal {
-class TracingMuxerImpl;
-}
-
-class TracingBackend;
-class Platform;
-class TracingSession;  // Declared below.
-
-struct TracingError {
-  enum ErrorCode : uint32_t {
-    // Peer disconnection.
-    kDisconnected = 1,
-
-    // The Start() method failed. This is typically because errors in the passed
-    // TraceConfig. More details are available in |message|.
-    kTracingFailed = 2,
-  };
-
-  ErrorCode code;
-  std::string message;
-
-  TracingError(ErrorCode cd, std::string msg)
-      : code(cd), message(std::move(msg)) {
-    PERFETTO_CHECK(!message.empty());
-  }
-};
-
-using LogLev = ::perfetto::base::LogLev;
-using LogMessageCallbackArgs = ::perfetto::base::LogMessageCallbackArgs;
-using LogMessageCallback = ::perfetto::base::LogMessageCallback;
-
-struct TracingInitArgs {
-  uint32_t backends = 0;                     // One or more BackendTypes.
-  TracingBackend* custom_backend = nullptr;  // [Optional].
-
-  // [Optional] Platform implementation. It allows the embedder to take control
-  // of platform-specific bits like thread creation and TLS slot handling. If
-  // not set it will use Platform::GetDefaultPlatform().
-  Platform* platform = nullptr;
-
-  // [Optional] Tune the size of the shared memory buffer between the current
-  // process and the service backend(s). This is a trade-off between memory
-  // footprint and the ability to sustain bursts of trace writes (see comments
-  // in shared_memory_abi.h).
-  // If set, the value must be a multiple of 4KB. The value can be ignored if
-  // larger than kMaxShmSize (32MB) or not a multiple of 4KB.
-  uint32_t shmem_size_hint_kb = 0;
-
-  // [Optional] Specifies the preferred size of each page in the shmem buffer.
-  // This is a trade-off between IPC overhead and fragmentation/efficiency of
-  // the shmem buffer in presence of multiple writer threads.
-  // Must be one of [4, 8, 16, 32].
-  uint32_t shmem_page_size_hint_kb = 0;
-
-  // [Optional] The length of the period during which shared-memory-buffer
-  // chunks that have been filled with data are accumulated (batched) on the
-  // producer side, before the service is notified of them over an out-of-band
-  // IPC call. If, while this period lasts, the shared memory buffer gets too
-  // full, the IPC call will be sent immediately. The value of this parameter is
-  // a trade-off between IPC traffic overhead and the ability to sustain bursts
-  // of trace writes. The higher the value, the more chunks will be batched and
-  // the less buffer space will be available to hide the latency of the service,
-  // and vice versa. For more details, see the SetBatchCommitsDuration method in
-  // shared_memory_arbiter.h.
-  //
-  // Note: With the default value of 0ms, batching still happens but with a zero
-  // delay, i.e. commits will be sent to the service at the next opportunity.
-  uint32_t shmem_batch_commits_duration_ms = 0;
-
-  // [Optional] If set, the policy object is notified when certain SDK events
-  // occur and may apply policy decisions, such as denying connections. The
-  // embedder is responsible for ensuring the object remains alive for the
-  // lifetime of the process.
-  TracingPolicy* tracing_policy = nullptr;
-
-  // [Optional] If set, log messages generated by perfetto are passed to this
-  // callback instead of being logged directly.
-  LogMessageCallback log_message_callback = nullptr;
-
- protected:
-  friend class Tracing;
-  friend class internal::TracingMuxerImpl;
-
-  // Used only by the DCHECK in tracing.cc, to check that the config is the
-  // same in case of re-initialization.
-  bool operator==(const TracingInitArgs& other) const {
-    return std::tie(backends, custom_backend, platform, shmem_size_hint_kb,
-                    shmem_page_size_hint_kb, in_process_backend_factory_,
-                    system_backend_factory_, dcheck_is_on_) ==
-           std::tie(other.backends, other.custom_backend, other.platform,
-                    other.shmem_size_hint_kb, other.shmem_page_size_hint_kb,
-                    other.in_process_backend_factory_,
-                    other.system_backend_factory_, other.dcheck_is_on_);
-  }
-
-  using BackendFactoryFunction = TracingBackend* (*)();
-  BackendFactoryFunction in_process_backend_factory_ = nullptr;
-  BackendFactoryFunction system_backend_factory_ = nullptr;
-  bool dcheck_is_on_ = PERFETTO_DCHECK_IS_ON();
-};
-
-// The entry-point for using perfetto.
-class PERFETTO_EXPORT Tracing {
- public:
-  // Initializes Perfetto with the given backends in the calling process and/or
-  // with a user-provided backend. No-op if called more than once.
-  static inline void Initialize(const TracingInitArgs& args)
-      PERFETTO_ALWAYS_INLINE {
-    TracingInitArgs args_copy(args);
-    // This code is inlined to allow dead-code elimination for unused backends.
-    // This saves ~200 KB when not using the in-process backend (b/148198993).
-    // The logic behind it is the following:
-    // Nothing other than the code below references the two GetInstance()
-    // methods. From a linker-graph viewpoint, those GetInstance() pull in many
-    // other pieces of the codebase (e.g. InProcessTracingBackend pulls the
-    // whole TracingServiceImpl, SystemTracingBackend pulls the whole //ipc
-    // layer). Due to the inline, the compiler can see through the code and
-    // realize that some branches are always not taken. When that happens, no
-    // reference to the backends' GetInstance() is emitted and that allows the
-    // linker GC to get rid of the entire set of dependencies.
-    if (args.backends & kInProcessBackend) {
-      args_copy.in_process_backend_factory_ =
-          &internal::InProcessTracingBackend::GetInstance;
-    }
-    if (args.backends & kSystemBackend) {
-      args_copy.system_backend_factory_ =
-          &internal::SystemTracingBackend::GetInstance;
-    }
-    InitializeInternal(args_copy);
-  }
-
-  // Checks if tracing has been initialized by calling |Initialize|.
-  static bool IsInitialized();
-
-  // Start a new tracing session using the given tracing backend. Use
-  // |kUnspecifiedBackend| to select an available backend automatically.
-  // For the moment this can be used only when initializing tracing in
-  // kInProcess mode. For the system mode use the 'bin/perfetto' cmdline client.
-  static std::unique_ptr<TracingSession> NewTrace(
-      BackendType = kUnspecifiedBackend);
-
- private:
-  static void InitializeInternal(const TracingInitArgs&);
-
-  Tracing() = delete;
-};
-
-class PERFETTO_EXPORT TracingSession {
- public:
-  virtual ~TracingSession();
-
-  // Configure the session passing the trace config.
-  // If a writable file handle is given through |fd|, the trace will
-  // automatically written to that file. Otherwise you should call ReadTrace()
-  // to retrieve the trace data. This call does not take ownership of |fd|.
-  // TODO(primiano): add an error callback.
-  virtual void Setup(const TraceConfig&, int fd = -1) = 0;
-
-  // Enable tracing asynchronously. Use SetOnStartCallback() to get a
-  // notification when the session has fully started.
-  virtual void Start() = 0;
-
-  // Enable tracing and block until tracing has started. Note that if data
-  // sources are registered after this call was initiated, the call may return
-  // before the additional data sources have started. Also, if other producers
-  // (e.g., with system-wide tracing) have registered data sources without start
-  // notification support, this call may return before those data sources have
-  // started.
-  virtual void StartBlocking() = 0;
-
-  // This callback will be invoked when all data sources have acknowledged that
-  // tracing has started. This callback will be invoked on an internal perfetto
-  // thread.
-  virtual void SetOnStartCallback(std::function<void()>) = 0;
-
-  // This callback can be used to get a notification when some error occured
-  // (e.g., peer disconnection). Error type will be passed as an argument. This
-  // callback will be invoked on an internal perfetto thread.
-  virtual void SetOnErrorCallback(std::function<void(TracingError)>) = 0;
-
-  // Issues a flush request, asking all data sources to ack the request, within
-  // the specified timeout. A "flush" is a fence to ensure visibility of data in
-  // the async tracing pipeline. It guarantees that all data written before the
-  // Flush() call will be visible in the trace buffer and hence by the
-  // ReadTrace() / ReadTraceBlocking() methods.
-  // Args:
-  //  callback: will be invoked on an internal perfetto thread when all data
-  //    sources have acked, or the timeout is reached. The bool argument
-  //    will be true if all data sources acked within the timeout, false if
-  //    the timeout was hit or some other error occurred (e.g. the tracing
-  //    session wasn't started or ended).
-  //  timeout_ms: how much time the service will wait for data source acks. If
-  //    0, the global timeout specified in the TraceConfig (flush_timeout_ms)
-  //    will be used. If flush_timeout_ms is also unspecified, a default value
-  //    of 5s will be used.
-  // Known issues:
-  //    Because flushing is still based on service-side scraping, the very last
-  //    trace packet for each data source thread will not be visible. Fixing
-  //    this requires either propagating the Flush() to the data sources or
-  //    changing the order of atomic operations in the service (b/162206162).
-  //    Until then, a workaround is to make sure to call
-  //    DataSource::Trace([](TraceContext ctx) { ctx.Flush(); }) just before
-  //    stopping, on each thread where DataSource::Trace has been previously
-  //    called.
-  virtual void Flush(std::function<void(bool)>, uint32_t timeout_ms = 0) = 0;
-
-  // Blocking version of Flush(). Waits until all data sources have acked and
-  // returns the success/failure status.
-  bool FlushBlocking(uint32_t timeout_ms = 0);
-
-  // Disable tracing asynchronously.
-  // Use SetOnStopCallback() to get a notification when the tracing session is
-  // fully stopped and all data sources have acked.
-  virtual void Stop() = 0;
-
-  // Disable tracing and block until tracing has stopped.
-  virtual void StopBlocking() = 0;
-
-  // This callback will be invoked when tracing is disabled.
-  // This can happen either when explicitly calling TracingSession.Stop() or
-  // when the trace reaches its |duration_ms| time limit.
-  // This callback will be invoked on an internal perfetto thread.
-  virtual void SetOnStopCallback(std::function<void()>) = 0;
-
-  // Changes the TraceConfig for an active tracing session. The session must
-  // have been configured and started before. Note that the tracing service
-  // only supports changing a subset of TraceConfig fields,
-  // see ConsumerEndpoint::ChangeTraceConfig().
-  virtual void ChangeTraceConfig(const TraceConfig&) = 0;
-
-  // Struct passed as argument to the callback passed to ReadTrace().
-  // [data, size] is guaranteed to contain 1 or more full trace packets, which
-  // can be decoded using trace.proto. No partial or truncated packets are
-  // exposed. If the trace is empty this returns a zero-sized nullptr with
-  // |has_more| == true to signal EOF.
-  // This callback will be invoked on an internal perfetto thread.
-  struct ReadTraceCallbackArgs {
-    const char* data = nullptr;
-    size_t size = 0;
-
-    // When false, this will be the last invocation of the callback for this
-    // read cycle.
-    bool has_more = false;
-  };
-
-  // Reads back the trace data (raw protobuf-encoded bytes) asynchronously.
-  // Can be called at any point during the trace, typically but not necessarily,
-  // after stopping. If this is called before the end of the trace (i.e. before
-  // Stop() / StopBlocking()), in almost all cases you need to call
-  // Flush() / FlushBlocking() before Read(). This is to guarantee that tracing
-  // data in-flight in the data sources is committed into the tracing buffers
-  // before reading them.
-  // Reading the trace data is a destructive operation w.r.t. contents of the
-  // trace buffer and is not idempotent.
-  // A single ReadTrace() call can yield >1 callback invocations, until
-  // |has_more| is false.
-  using ReadTraceCallback = std::function<void(ReadTraceCallbackArgs)>;
-  virtual void ReadTrace(ReadTraceCallback) = 0;
-
-  // Synchronous version of ReadTrace(). It blocks the calling thread until all
-  // the trace contents are read. This is slow and inefficient (involves more
-  // copies) and is mainly intended for testing.
-  std::vector<char> ReadTraceBlocking();
-
-  // Struct passed as an argument to the callback for GetTraceStats(). Contains
-  // statistics about the tracing session.
-  struct GetTraceStatsCallbackArgs {
-    // Whether or not querying statistics succeeded.
-    bool success = false;
-    // Serialized TraceStats protobuf message. To decode:
-    //
-    //   perfetto::protos::gen::TraceStats trace_stats;
-    //   trace_stats.ParseFromArray(args.trace_stats_data.data(),
-    //                              args.trace_stats_data.size());
-    //
-    std::vector<uint8_t> trace_stats_data;
-  };
-
-  // Requests a snapshot of statistical data for this tracing session. Only one
-  // query may be active at a time. This callback will be invoked on an internal
-  // perfetto thread.
-  using GetTraceStatsCallback = std::function<void(GetTraceStatsCallbackArgs)>;
-  virtual void GetTraceStats(GetTraceStatsCallback) = 0;
-
-  // Synchronous version of GetTraceStats() for convenience.
-  GetTraceStatsCallbackArgs GetTraceStatsBlocking();
-
-  // Struct passed as an argument to the callback for QueryServiceState().
-  // Contains information about registered data sources.
-  struct QueryServiceStateCallbackArgs {
-    // Whether or not getting the service state succeeded.
-    bool success = false;
-    // Serialized TracingServiceState protobuf message. To decode:
-    //
-    //   perfetto::protos::gen::TracingServiceState state;
-    //   state.ParseFromArray(args.service_state_data.data(),
-    //                        args.service_state_data.size());
-    //
-    std::vector<uint8_t> service_state_data;
-  };
-
-  // Requests a snapshot of the tracing service state for this session. Only one
-  // request per session may be active at a time. This callback will be invoked
-  // on an internal perfetto thread.
-  using QueryServiceStateCallback =
-      std::function<void(QueryServiceStateCallbackArgs)>;
-  virtual void QueryServiceState(QueryServiceStateCallback) = 0;
-
-  // Synchronous version of QueryServiceState() for convenience.
-  QueryServiceStateCallbackArgs QueryServiceStateBlocking();
-};
-
-}  // namespace perfetto
-
-#endif  // INCLUDE_PERFETTO_TRACING_TRACING_H_
-// gen_amalgamated begin header: include/perfetto/tracing/track_event.h
-// gen_amalgamated begin header: include/perfetto/base/time.h
-/*
- * Copyright (C) 2018 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef INCLUDE_PERFETTO_BASE_TIME_H_
-#define INCLUDE_PERFETTO_BASE_TIME_H_
-
-#include <time.h>
-
-#include <chrono>
-#include <string>
-
-// gen_amalgamated expanded: #include "perfetto/base/build_config.h"
-// gen_amalgamated expanded: #include "perfetto/base/logging.h"
-
-#if PERFETTO_BUILDFLAG(PERFETTO_OS_APPLE)
-#include <mach/mach_init.h>
-#include <mach/mach_port.h>
-#include <mach/mach_time.h>
-#include <mach/thread_act.h>
-#endif
-
-#if PERFETTO_BUILDFLAG(PERFETTO_OS_WASM)
-#include <emscripten/emscripten.h>
-#endif
-
-namespace perfetto {
-namespace base {
-
-using TimeSeconds = std::chrono::seconds;
-using TimeMillis = std::chrono::milliseconds;
-using TimeNanos = std::chrono::nanoseconds;
-
-inline TimeNanos FromPosixTimespec(const struct timespec& ts) {
-  return TimeNanos(ts.tv_sec * 1000000000LL + ts.tv_nsec);
-}
-
-void SleepMicroseconds(unsigned interval_us);
-
-#if PERFETTO_BUILDFLAG(PERFETTO_OS_WIN)
-
-TimeNanos GetWallTimeNs();
-TimeNanos GetThreadCPUTimeNs();
-
-// TODO: Clock that counts time during suspend is not implemented on Windows.
-inline TimeNanos GetBootTimeNs() {
-  return GetWallTimeNs();
-}
-
-#elif PERFETTO_BUILDFLAG(PERFETTO_OS_APPLE)
-
-inline TimeNanos GetWallTimeNs() {
-  auto init_time_factor = []() -> uint64_t {
-    mach_timebase_info_data_t timebase_info;
-    mach_timebase_info(&timebase_info);
-    return timebase_info.numer / timebase_info.denom;
-  };
-
-  static uint64_t monotonic_timebase_factor = init_time_factor();
-  return TimeNanos(mach_absolute_time() * monotonic_timebase_factor);
-}
-
-// TODO: Clock that counts time during suspend is not implemented on Mac.
-inline TimeNanos GetBootTimeNs() {
-  return GetWallTimeNs();
-}
-
-inline TimeNanos GetThreadCPUTimeNs() {
-  mach_port_t this_thread = mach_thread_self();
-  mach_msg_type_number_t count = THREAD_BASIC_INFO_COUNT;
-  thread_basic_info_data_t info{};
-  kern_return_t kr =
-      thread_info(this_thread, THREAD_BASIC_INFO,
-                  reinterpret_cast<thread_info_t>(&info), &count);
-  mach_port_deallocate(mach_task_self(), this_thread);
-
-  if (kr != KERN_SUCCESS) {
-    PERFETTO_DFATAL("Failed to get CPU time.");
-    return TimeNanos(0);
-  }
-  return TimeNanos(info.user_time.seconds * 1000000000LL +
-                   info.user_time.microseconds * 1000LL +
-                   info.system_time.seconds * 1000000000LL +
-                   info.system_time.microseconds * 1000LL);
-}
-
-#elif PERFETTO_BUILDFLAG(PERFETTO_OS_WASM)
-
-inline TimeNanos GetWallTimeNs() {
-  return TimeNanos(static_cast<uint64_t>(emscripten_get_now()) * 1000000);
-}
-
-inline TimeNanos GetThreadCPUTimeNs() {
-  return TimeNanos(0);
-}
-
-// TODO: Clock that counts time during suspend is not implemented on WASM.
-inline TimeNanos GetBootTimeNs() {
-  return GetWallTimeNs();
-}
-
-#elif PERFETTO_BUILDFLAG(PERFETTO_OS_NACL)
-
-// Tracing time doesn't need to work on NaCl since its going away shortly. We
-// just need to compile on it. The only function NaCl could support is
-// GetWallTimeNs(), but to prevent false hope we leave it unimplemented.
-
-inline TimeNanos GetWallTimeNs() {
-  return TimeNanos(0);
-}
-
-inline TimeNanos GetThreadCPUTimeNs() {
-  return TimeNanos(0);
-}
-
-inline TimeNanos GetBootTimeNs() {
-  return TimeNanos(0);
-}
-
-#else  // posix
-
-constexpr clockid_t kWallTimeClockSource = CLOCK_MONOTONIC;
-
-inline TimeNanos GetTimeInternalNs(clockid_t clk_id) {
-  struct timespec ts = {};
-  PERFETTO_CHECK(clock_gettime(clk_id, &ts) == 0);
-  return FromPosixTimespec(ts);
-}
-
-// Return ns from boot. Conversely to GetWallTimeNs, this clock counts also time
-// during suspend (when supported).
-inline TimeNanos GetBootTimeNs() {
-  // Determine if CLOCK_BOOTTIME is available on the first call.
-  static const clockid_t kBootTimeClockSource = [] {
-    struct timespec ts = {};
-    int res = clock_gettime(CLOCK_BOOTTIME, &ts);
-    return res == 0 ? CLOCK_BOOTTIME : kWallTimeClockSource;
-  }();
-  return GetTimeInternalNs(kBootTimeClockSource);
-}
-
-inline TimeNanos GetWallTimeNs() {
-  return GetTimeInternalNs(kWallTimeClockSource);
-}
-
-inline TimeNanos GetThreadCPUTimeNs() {
-  return GetTimeInternalNs(CLOCK_THREAD_CPUTIME_ID);
-}
-#endif
-
-inline TimeSeconds GetBootTimeS() {
-  return std::chrono::duration_cast<TimeSeconds>(GetBootTimeNs());
-}
-
-inline TimeMillis GetWallTimeMs() {
-  return std::chrono::duration_cast<TimeMillis>(GetWallTimeNs());
-}
-
-inline TimeSeconds GetWallTimeS() {
-  return std::chrono::duration_cast<TimeSeconds>(GetWallTimeNs());
-}
-
-inline struct timespec ToPosixTimespec(TimeMillis time) {
-  struct timespec ts {};
-  const long time_s = static_cast<long>(time.count() / 1000);
-  ts.tv_sec = time_s;
-  ts.tv_nsec = (static_cast<long>(time.count()) - time_s * 1000L) * 1000000L;
-  return ts;
-}
-
-std::string GetTimeFmt(const std::string& fmt);
-
-}  // namespace base
-}  // namespace perfetto
-
-#endif  // INCLUDE_PERFETTO_BASE_TIME_H_
-// gen_amalgamated begin header: include/perfetto/tracing/internal/track_event_data_source.h
-// gen_amalgamated begin header: include/perfetto/base/template_util.h
-/*
- * Copyright (C) 2021 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef INCLUDE_PERFETTO_BASE_TEMPLATE_UTIL_H_
-#define INCLUDE_PERFETTO_BASE_TEMPLATE_UTIL_H_
-
-#include <cstddef>
-#include <type_traits>
-
-namespace perfetto {
-namespace base {
-
-// Helper to express preferences in an overload set. If more than one overload
-// is available for a given set of parameters the overload with the higher
-// priority will be chosen.
-template <size_t I>
-struct priority_tag : priority_tag<I - 1> {};
-
-template <>
-struct priority_tag<0> {};
-
-// enable_if_t is an implementation of std::enable_if_t from C++14.
-//
-// Specification:
-// https://en.cppreference.com/w/cpp/types/enable_if
-template <bool B, class T = void>
-using enable_if_t = typename std::enable_if<B, T>::type;
-
-// decay_t is an implementation of std::decay_t from C++14.
-//
-// Specification:
-// https://en.cppreference.com/w/cpp/types/decay
-template <class T>
-using decay_t = typename std::decay<T>::type;
-
-// remove_cvref is an implementation of std::remove_cvref from
-// C++20.
-//
-// Specification:
-// https://en.cppreference.com/w/cpp/types/remove_cvref
-
-template <class T>
-struct remove_cvref {
-  using type = typename std::remove_cv<typename std::remove_cv<
-      typename std::remove_reference<T>::type>::type>::type;
-};
-template <class T>
-using remove_cvref_t = typename remove_cvref<T>::type;
-
-// Check if a given type is a specialization of a given template:
-// is_specialization<T, std::vector>::value.
-
-template <typename Type, template <typename...> class Template>
-struct is_specialization : std::false_type {};
-
-template <template <typename...> class Ref, typename... Args>
-struct is_specialization<Ref<Args...>, Ref> : std::true_type {};
-
-}  // namespace base
-}  // namespace perfetto
-
-#endif  // INCLUDE_PERFETTO_BASE_TEMPLATE_UTIL_H_
-// gen_amalgamated begin header: include/perfetto/tracing/event_context.h
-// gen_amalgamated begin header: include/perfetto/tracing/internal/track_event_internal.h
-// gen_amalgamated begin header: include/perfetto/base/flat_set.h
-/*
- * Copyright (C) 2019 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef INCLUDE_PERFETTO_BASE_FLAT_SET_H_
-#define INCLUDE_PERFETTO_BASE_FLAT_SET_H_
-
-#include <algorithm>
-#include <vector>
-
-// A vector-based set::set-like container.
-// It's more cache friendly than std::*set and performs for cases where:
-// 1. A high number of dupes is expected (e.g. pid tracking in ftrace).
-// 2. The working set is small (hundreds of elements).
-
-// Performance characteristics (for uniformly random insertion order):
-// - For smaller insertions (up to ~500), it outperforms both std::set<int> and
-//   std::unordered_set<int> by ~3x.
-// - Up until 4k insertions, it is always faster than std::set<int>.
-// - unordered_set<int> is faster with more than 2k insertions.
-// - unordered_set, however, it's less memory efficient and has more caveats
-//   (see chromium's base/containers/README.md).
-//
-// See flat_set_benchmark.cc and the charts in go/perfetto-int-set-benchmark.
-
-namespace perfetto {
-namespace base {
-
-template <typename T>
-class FlatSet {
- public:
-  using value_type = T;
-  using const_pointer = const T*;
-  using iterator = typename std::vector<T>::iterator;
-  using const_iterator = typename std::vector<T>::const_iterator;
-
-  FlatSet() = default;
-
-  // Mainly for tests. Deliberately not marked as "explicit".
-  FlatSet(std::initializer_list<T> initial) : entries_(initial) {
-    std::sort(entries_.begin(), entries_.end());
-    entries_.erase(std::unique(entries_.begin(), entries_.end()),
-                   entries_.end());
-  }
-
-  const_iterator find(T value) const {
-    auto entries_end = entries_.end();
-    auto it = std::lower_bound(entries_.begin(), entries_end, value);
-    return (it != entries_end && *it == value) ? it : entries_end;
-  }
-
-  size_t count(T value) const { return find(value) == entries_.end() ? 0 : 1; }
-
-  std::pair<iterator, bool> insert(T value) {
-    auto entries_end = entries_.end();
-    auto it = std::lower_bound(entries_.begin(), entries_end, value);
-    if (it != entries_end && *it == value)
-      return std::make_pair(it, false);
-    // If the value is not found |it| is either end() or the next item strictly
-    // greater than |value|. In both cases we want to insert just before that.
-    it = entries_.insert(it, std::move(value));
-    return std::make_pair(it, true);
-  }
-
-  size_t erase(T value) {
-    auto it = find(value);
-    if (it == entries_.end())
-      return 0;
-    entries_.erase(it);
-    return 1;
-  }
-
-  void clear() { entries_.clear(); }
-
-  bool empty() const { return entries_.empty(); }
-  void reserve(size_t n) { entries_.reserve(n); }
-  size_t size() const { return entries_.size(); }
-  const_iterator begin() const { return entries_.begin(); }
-  const_iterator end() const { return entries_.end(); }
-
- private:
-  std::vector<T> entries_;
-};
-
-}  // namespace base
-}  // namespace perfetto
-
-#endif  // INCLUDE_PERFETTO_BASE_FLAT_SET_H_
-// gen_amalgamated begin header: include/perfetto/protozero/scattered_heap_buffer.h
-// gen_amalgamated begin header: include/perfetto/protozero/root_message.h
-// gen_amalgamated begin header: include/perfetto/protozero/message_arena.h
-/*
- * Copyright (C) 2020 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef INCLUDE_PERFETTO_PROTOZERO_MESSAGE_ARENA_H_
-#define INCLUDE_PERFETTO_PROTOZERO_MESSAGE_ARENA_H_
-
-#include <stdint.h>
-
-#include <list>
-#include <type_traits>
-
-// gen_amalgamated expanded: #include "perfetto/base/export.h"
-// gen_amalgamated expanded: #include "perfetto/base/logging.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/message.h"
-
-namespace protozero {
-
-class Message;
-
-// Object allocator for fixed-sized protozero::Message objects.
-// It's a simple bump-pointer allocator which leverages the stack-alike
-// usage pattern of protozero nested messages. It avoids hitting the system
-// allocator in most cases, by reusing the same block, and falls back on
-// allocating new blocks only when using deeply nested messages (which are
-// extremely rare).
-// This is used by RootMessage<T> to handle the storage for root-level messages.
-class PERFETTO_EXPORT MessageArena {
- public:
-  MessageArena();
-  ~MessageArena();
-
-  // Strictly no copies or moves as this is used to hand out pointers.
-  MessageArena(const MessageArena&) = delete;
-  MessageArena& operator=(const MessageArena&) = delete;
-  MessageArena(MessageArena&&) = delete;
-  MessageArena& operator=(MessageArena&&) = delete;
-
-  // Allocates a new Message object.
-  Message* NewMessage();
-
-  // Deletes the last message allocated. The |msg| argument is used only for
-  // DCHECKs, it MUST be the pointer obtained by the last NewMessage() call.
-  void DeleteLastMessage(Message* msg) {
-    PERFETTO_DCHECK(!blocks_.empty() && blocks_.back().entries > 0);
-    PERFETTO_DCHECK(&blocks_.back().storage[blocks_.back().entries - 1] ==
-                    static_cast<void*>(msg));
-    DeleteLastMessageInternal();
-  }
-
-  // Resets the state of the arena, clearing up all but one block. This is used
-  // to avoid leaking outstanding unfinished sub-messages while recycling the
-  // RootMessage object (this is extremely rare due to the RAII scoped handles
-  // but could happen if some client does some overly clever std::move() trick).
-  void Reset() {
-    PERFETTO_DCHECK(!blocks_.empty());
-    blocks_.resize(1);
-    auto& block = blocks_.back();
-    block.entries = 0;
-    PERFETTO_ASAN_POISON(block.storage, sizeof(block.storage));
-  }
-
- private:
-  void DeleteLastMessageInternal();
-
-  struct Block {
-    static constexpr size_t kCapacity = 16;
-
-    Block() { PERFETTO_ASAN_POISON(storage, sizeof(storage)); }
-
-    std::aligned_storage<sizeof(Message), alignof(Message)>::type
-        storage[kCapacity];
-    uint32_t entries = 0;  // # Message entries used (<= kCapacity).
-  };
-
-  // blocks are used to hand out pointers and must not be moved. Hence why
-  // std::list rather than std::vector.
-  std::list<Block> blocks_;
-};
-
-}  // namespace protozero
-
-#endif  // INCLUDE_PERFETTO_PROTOZERO_MESSAGE_ARENA_H_
-/*
- * Copyright (C) 2020 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef INCLUDE_PERFETTO_PROTOZERO_ROOT_MESSAGE_H_
-#define INCLUDE_PERFETTO_PROTOZERO_ROOT_MESSAGE_H_
-
-// gen_amalgamated expanded: #include "perfetto/protozero/message.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/message_arena.h"
-
-namespace protozero {
-
-// Helper class to hand out messages using the default MessageArena.
-// Usage:
-// RootMessage<perfetto::protos::zero::MyMessage> msg;
-// msg.Reset(stream_writer);
-// msg.set_foo(...);
-// auto* nested = msg.set_nested();
-template <typename T = Message>
-class RootMessage : public T {
- public:
-  RootMessage() { T::Reset(nullptr, &root_arena_); }
-
-  // Disallow copy and move.
-  RootMessage(const RootMessage&) = delete;
-  RootMessage& operator=(const RootMessage&) = delete;
-  RootMessage(RootMessage&&) = delete;
-  RootMessage& operator=(RootMessage&&) = delete;
-
-  void Reset(ScatteredStreamWriter* writer) {
-    root_arena_.Reset();
-    Message::Reset(writer, &root_arena_);
-  }
-
- private:
-  MessageArena root_arena_;
-};
-
-}  // namespace protozero
-
-#endif  // INCLUDE_PERFETTO_PROTOZERO_ROOT_MESSAGE_H_
-/*
- * Copyright (C) 2017 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef INCLUDE_PERFETTO_PROTOZERO_SCATTERED_HEAP_BUFFER_H_
-#define INCLUDE_PERFETTO_PROTOZERO_SCATTERED_HEAP_BUFFER_H_
-
-#include <memory>
-#include <string>
-#include <vector>
-
-// gen_amalgamated expanded: #include "perfetto/base/export.h"
-// gen_amalgamated expanded: #include "perfetto/base/logging.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/root_message.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/scattered_stream_writer.h"
-
-namespace protozero {
-
-class Message;
-
-class PERFETTO_EXPORT ScatteredHeapBuffer
-    : public protozero::ScatteredStreamWriter::Delegate {
- public:
-  class PERFETTO_EXPORT Slice {
-   public:
-    Slice();
-    explicit Slice(size_t size);
-    Slice(Slice&& slice) noexcept;
-    ~Slice();
-    Slice& operator=(Slice&&);
-
-    inline protozero::ContiguousMemoryRange GetTotalRange() const {
-      return {buffer_.get(), buffer_.get() + size_};
-    }
-
-    inline protozero::ContiguousMemoryRange GetUsedRange() const {
-      return {buffer_.get(), buffer_.get() + size_ - unused_bytes_};
-    }
-
-    uint8_t* start() const { return buffer_.get(); }
-    size_t size() const { return size_; }
-    size_t unused_bytes() const { return unused_bytes_; }
-    void set_unused_bytes(size_t unused_bytes) {
-      PERFETTO_DCHECK(unused_bytes_ <= size_);
-      unused_bytes_ = unused_bytes;
-    }
-
-    void Clear();
-
-   private:
-    std::unique_ptr<uint8_t[]> buffer_;
-    size_t size_;
-    size_t unused_bytes_;
-  };
-
-  ScatteredHeapBuffer(size_t initial_slice_size_bytes = 128,
-                      size_t maximum_slice_size_bytes = 128 * 1024);
-  ~ScatteredHeapBuffer() override;
-
-  // protozero::ScatteredStreamWriter::Delegate implementation.
-  protozero::ContiguousMemoryRange GetNewBuffer() override;
-
-  // Return the slices backing this buffer, adjusted for the number of bytes the
-  // writer has written.
-  const std::vector<Slice>& GetSlices();
-
-  // Stitch all the slices into a single contiguous buffer.
-  std::vector<uint8_t> StitchSlices();
-
-  // Note that the returned ranges point back to this buffer and thus cannot
-  // outlive it.
-  std::vector<protozero::ContiguousMemoryRange> GetRanges();
-
-  // Note that size of the last slice isn't updated to reflect the number of
-  // bytes written by the trace writer.
-  const std::vector<Slice>& slices() const { return slices_; }
-
-  void set_writer(protozero::ScatteredStreamWriter* writer) {
-    writer_ = writer;
-  }
-
-  // Update unused_bytes() of the current |Slice| based on the writer's state.
-  void AdjustUsedSizeOfCurrentSlice();
-
-  // Returns the total size the slices occupy in heap memory (including unused).
-  size_t GetTotalSize();
-
-  // Reset the contents of this buffer but retain one slice allocation (if it
-  // exists) to be reused for future writes.
-  void Reset();
-
- private:
-  size_t next_slice_size_;
-  const size_t maximum_slice_size_;
-  protozero::ScatteredStreamWriter* writer_ = nullptr;
-  std::vector<Slice> slices_;
-
-  // Used to keep an allocated slice around after this buffer is reset.
-  Slice cached_slice_;
-};
-
-// Helper function to create heap-based protozero messages in one line.
-// Useful when manually serializing a protozero message (primarily in
-// tests/utilities). So instead of the following:
-//   protozero::MyMessage msg;
-//   protozero::ScatteredHeapBuffer shb;
-//   protozero::ScatteredStreamWriter writer(&shb);
-//   shb.set_writer(&writer);
-//   msg.Reset(&writer);
-//   ...
-// You can write:
-//   protozero::HeapBuffered<protozero::MyMessage> msg;
-//   msg->set_stuff(...);
-//   msg.SerializeAsString();
-template <typename T = ::protozero::Message>
-class HeapBuffered {
- public:
-  HeapBuffered() : HeapBuffered(4096, 4096) {}
-  HeapBuffered(size_t initial_slice_size_bytes, size_t maximum_slice_size_bytes)
-      : shb_(initial_slice_size_bytes, maximum_slice_size_bytes),
-        writer_(&shb_) {
-    shb_.set_writer(&writer_);
-    msg_.Reset(&writer_);
-  }
-
-  // This can't be neither copied nor moved because Message hands out pointers
-  // to itself when creating submessages.
-  HeapBuffered(const HeapBuffered&) = delete;
-  HeapBuffered& operator=(const HeapBuffered&) = delete;
-  HeapBuffered(HeapBuffered&&) = delete;
-  HeapBuffered& operator=(HeapBuffered&&) = delete;
-
-  T* get() { return &msg_; }
-  T* operator->() { return &msg_; }
-
-  bool empty() const { return shb_.slices().empty(); }
-
-  std::vector<uint8_t> SerializeAsArray() {
-    msg_.Finalize();
-    return shb_.StitchSlices();
-  }
-
-  std::string SerializeAsString() {
-    auto vec = SerializeAsArray();
-    return std::string(reinterpret_cast<const char*>(vec.data()), vec.size());
-  }
-
-  std::vector<protozero::ContiguousMemoryRange> GetRanges() {
-    msg_.Finalize();
-    return shb_.GetRanges();
-  }
-
-  const std::vector<ScatteredHeapBuffer::Slice>& GetSlices() {
-    msg_.Finalize();
-    return shb_.GetSlices();
-  }
-
-  void Reset() {
-    shb_.Reset();
-    writer_.Reset(protozero::ContiguousMemoryRange{});
-    msg_.Reset(&writer_);
-    PERFETTO_DCHECK(empty());
-  }
-
- private:
-  ScatteredHeapBuffer shb_;
-  ScatteredStreamWriter writer_;
-  RootMessage<T> msg_;
-};
-
-}  // namespace protozero
-
-#endif  // INCLUDE_PERFETTO_PROTOZERO_SCATTERED_HEAP_BUFFER_H_
-// gen_amalgamated begin header: include/perfetto/tracing/debug_annotation.h
-// gen_amalgamated begin header: include/perfetto/tracing/traced_value_forward.h
-/*
- * Copyright (C) 2021 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef INCLUDE_PERFETTO_TRACING_TRACED_VALUE_FORWARD_H_
-#define INCLUDE_PERFETTO_TRACING_TRACED_VALUE_FORWARD_H_
-
-namespace perfetto {
-
-class TracedValue;
-class TracedArray;
-class TracedDictionary;
-
-template <typename T>
-void WriteIntoTracedValue(TracedValue context, T&& value);
-
-template <typename T, class = void>
-struct TraceFormatTraits;
-
-// Write support checker to allow it to be used when matching.
-//
-// Intended to be used for types like smart pointers, who should support
-// AsTracedValueInto only iff their inner type supports being written into
-// a TracedValue.
-//
-// template <typename T>
-// class SmartPtr {
-//   ...
-//
-//   typename check_traced_value_support<T, void>::value
-//   AsTracedValueInto(perfetto::TracedValue context) const {
-//      WriteIntoTracedValue(std::move(context), *ptr_);
-//   }
-// };
-template <typename T, typename ResultType = void, class = void>
-struct check_traced_value_support;
-
-}  // namespace perfetto
-
-#endif  // INCLUDE_PERFETTO_TRACING_TRACED_VALUE_FORWARD_H_
-// gen_amalgamated begin header: gen/protos/perfetto/trace/track_event/debug_annotation.pbzero.h
-// Autogenerated by the ProtoZero compiler plugin. DO NOT EDIT.
-
-#ifndef PERFETTO_PROTOS_PROTOS_PERFETTO_TRACE_TRACK_EVENT_DEBUG_ANNOTATION_PROTO_H_
-#define PERFETTO_PROTOS_PROTOS_PERFETTO_TRACE_TRACK_EVENT_DEBUG_ANNOTATION_PROTO_H_
-
-#include <stddef.h>
-#include <stdint.h>
-
-// gen_amalgamated expanded: #include "perfetto/protozero/field_writer.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/message.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/packed_repeated_fields.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/proto_decoder.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/proto_utils.h"
-
-namespace perfetto {
-namespace protos {
-namespace pbzero {
-
-class DebugAnnotation;
-class DebugAnnotation_NestedValue;
-enum DebugAnnotation_NestedValue_NestedType : int32_t;
-
-enum DebugAnnotation_NestedValue_NestedType : int32_t {
-  DebugAnnotation_NestedValue_NestedType_UNSPECIFIED = 0,
-  DebugAnnotation_NestedValue_NestedType_DICT = 1,
-  DebugAnnotation_NestedValue_NestedType_ARRAY = 2,
-};
-
-const DebugAnnotation_NestedValue_NestedType DebugAnnotation_NestedValue_NestedType_MIN = DebugAnnotation_NestedValue_NestedType_UNSPECIFIED;
-const DebugAnnotation_NestedValue_NestedType DebugAnnotation_NestedValue_NestedType_MAX = DebugAnnotation_NestedValue_NestedType_ARRAY;
-
-class DebugAnnotationName_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/2, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  DebugAnnotationName_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit DebugAnnotationName_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit DebugAnnotationName_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_iid() const { return at<1>().valid(); }
-  uint64_t iid() const { return at<1>().as_uint64(); }
-  bool has_name() const { return at<2>().valid(); }
-  ::protozero::ConstChars name() const { return at<2>().as_string(); }
-};
-
-class DebugAnnotationName : public ::protozero::Message {
- public:
-  using Decoder = DebugAnnotationName_Decoder;
-  enum : int32_t {
-    kIidFieldNumber = 1,
-    kNameFieldNumber = 2,
-  };
-
-  using FieldMetadata_Iid =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      DebugAnnotationName>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Iid kIid() { return {}; }
-  void set_iid(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Iid::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Name =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kString,
-      std::string,
-      DebugAnnotationName>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Name kName() { return {}; }
-  void set_name(const char* data, size_t size) {
-    AppendBytes(FieldMetadata_Name::kFieldId, data, size);
-  }
-  void set_name(std::string value) {
-    static constexpr uint32_t field_id = FieldMetadata_Name::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kString>
-        ::Append(*this, field_id, value);
-  }
-};
-
-class DebugAnnotation_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/12, /*HAS_NONPACKED_REPEATED_FIELDS=*/true> {
- public:
-  DebugAnnotation_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit DebugAnnotation_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit DebugAnnotation_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_name_iid() const { return at<1>().valid(); }
-  uint64_t name_iid() const { return at<1>().as_uint64(); }
-  bool has_name() const { return at<10>().valid(); }
-  ::protozero::ConstChars name() const { return at<10>().as_string(); }
-  bool has_bool_value() const { return at<2>().valid(); }
-  bool bool_value() const { return at<2>().as_bool(); }
-  bool has_uint_value() const { return at<3>().valid(); }
-  uint64_t uint_value() const { return at<3>().as_uint64(); }
-  bool has_int_value() const { return at<4>().valid(); }
-  int64_t int_value() const { return at<4>().as_int64(); }
-  bool has_double_value() const { return at<5>().valid(); }
-  double double_value() const { return at<5>().as_double(); }
-  bool has_string_value() const { return at<6>().valid(); }
-  ::protozero::ConstChars string_value() const { return at<6>().as_string(); }
-  bool has_pointer_value() const { return at<7>().valid(); }
-  uint64_t pointer_value() const { return at<7>().as_uint64(); }
-  bool has_nested_value() const { return at<8>().valid(); }
-  ::protozero::ConstBytes nested_value() const { return at<8>().as_bytes(); }
-  bool has_legacy_json_value() const { return at<9>().valid(); }
-  ::protozero::ConstChars legacy_json_value() const { return at<9>().as_string(); }
-  bool has_dict_entries() const { return at<11>().valid(); }
-  ::protozero::RepeatedFieldIterator<::protozero::ConstBytes> dict_entries() const { return GetRepeated<::protozero::ConstBytes>(11); }
-  bool has_array_values() const { return at<12>().valid(); }
-  ::protozero::RepeatedFieldIterator<::protozero::ConstBytes> array_values() const { return GetRepeated<::protozero::ConstBytes>(12); }
-};
-
-class DebugAnnotation : public ::protozero::Message {
- public:
-  using Decoder = DebugAnnotation_Decoder;
-  enum : int32_t {
-    kNameIidFieldNumber = 1,
-    kNameFieldNumber = 10,
-    kBoolValueFieldNumber = 2,
-    kUintValueFieldNumber = 3,
-    kIntValueFieldNumber = 4,
-    kDoubleValueFieldNumber = 5,
-    kStringValueFieldNumber = 6,
-    kPointerValueFieldNumber = 7,
-    kNestedValueFieldNumber = 8,
-    kLegacyJsonValueFieldNumber = 9,
-    kDictEntriesFieldNumber = 11,
-    kArrayValuesFieldNumber = 12,
-  };
-  using NestedValue = ::perfetto::protos::pbzero::DebugAnnotation_NestedValue;
-
-  using FieldMetadata_NameIid =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      DebugAnnotation>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_NameIid kNameIid() { return {}; }
-  void set_name_iid(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_NameIid::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Name =
-    ::protozero::proto_utils::FieldMetadata<
-      10,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kString,
-      std::string,
-      DebugAnnotation>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Name kName() { return {}; }
-  void set_name(const char* data, size_t size) {
-    AppendBytes(FieldMetadata_Name::kFieldId, data, size);
-  }
-  void set_name(std::string value) {
-    static constexpr uint32_t field_id = FieldMetadata_Name::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kString>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_BoolValue =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kBool,
-      bool,
-      DebugAnnotation>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_BoolValue kBoolValue() { return {}; }
-  void set_bool_value(bool value) {
-    static constexpr uint32_t field_id = FieldMetadata_BoolValue::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kBool>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_UintValue =
-    ::protozero::proto_utils::FieldMetadata<
-      3,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      DebugAnnotation>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_UintValue kUintValue() { return {}; }
-  void set_uint_value(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_UintValue::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_IntValue =
-    ::protozero::proto_utils::FieldMetadata<
-      4,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt64,
-      int64_t,
-      DebugAnnotation>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_IntValue kIntValue() { return {}; }
-  void set_int_value(int64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_IntValue::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_DoubleValue =
-    ::protozero::proto_utils::FieldMetadata<
-      5,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kDouble,
-      double,
-      DebugAnnotation>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_DoubleValue kDoubleValue() { return {}; }
-  void set_double_value(double value) {
-    static constexpr uint32_t field_id = FieldMetadata_DoubleValue::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kDouble>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_StringValue =
-    ::protozero::proto_utils::FieldMetadata<
-      6,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kString,
-      std::string,
-      DebugAnnotation>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_StringValue kStringValue() { return {}; }
-  void set_string_value(const char* data, size_t size) {
-    AppendBytes(FieldMetadata_StringValue::kFieldId, data, size);
-  }
-  void set_string_value(std::string value) {
-    static constexpr uint32_t field_id = FieldMetadata_StringValue::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kString>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_PointerValue =
-    ::protozero::proto_utils::FieldMetadata<
-      7,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      DebugAnnotation>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_PointerValue kPointerValue() { return {}; }
-  void set_pointer_value(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_PointerValue::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_NestedValue =
-    ::protozero::proto_utils::FieldMetadata<
-      8,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      DebugAnnotation_NestedValue,
-      DebugAnnotation>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_NestedValue kNestedValue() { return {}; }
-  template <typename T = DebugAnnotation_NestedValue> T* set_nested_value() {
-    return BeginNestedMessage<T>(8);
-  }
-
-
-  using FieldMetadata_LegacyJsonValue =
-    ::protozero::proto_utils::FieldMetadata<
-      9,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kString,
-      std::string,
-      DebugAnnotation>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_LegacyJsonValue kLegacyJsonValue() { return {}; }
-  void set_legacy_json_value(const char* data, size_t size) {
-    AppendBytes(FieldMetadata_LegacyJsonValue::kFieldId, data, size);
-  }
-  void set_legacy_json_value(std::string value) {
-    static constexpr uint32_t field_id = FieldMetadata_LegacyJsonValue::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kString>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_DictEntries =
-    ::protozero::proto_utils::FieldMetadata<
-      11,
-      ::protozero::proto_utils::RepetitionType::kRepeatedNotPacked,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      DebugAnnotation,
-      DebugAnnotation>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_DictEntries kDictEntries() { return {}; }
-  template <typename T = DebugAnnotation> T* add_dict_entries() {
-    return BeginNestedMessage<T>(11);
-  }
-
-
-  using FieldMetadata_ArrayValues =
-    ::protozero::proto_utils::FieldMetadata<
-      12,
-      ::protozero::proto_utils::RepetitionType::kRepeatedNotPacked,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      DebugAnnotation,
-      DebugAnnotation>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_ArrayValues kArrayValues() { return {}; }
-  template <typename T = DebugAnnotation> T* add_array_values() {
-    return BeginNestedMessage<T>(12);
-  }
-
-};
-
-class DebugAnnotation_NestedValue_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/8, /*HAS_NONPACKED_REPEATED_FIELDS=*/true> {
- public:
-  DebugAnnotation_NestedValue_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit DebugAnnotation_NestedValue_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit DebugAnnotation_NestedValue_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_nested_type() const { return at<1>().valid(); }
-  int32_t nested_type() const { return at<1>().as_int32(); }
-  bool has_dict_keys() const { return at<2>().valid(); }
-  ::protozero::RepeatedFieldIterator<::protozero::ConstChars> dict_keys() const { return GetRepeated<::protozero::ConstChars>(2); }
-  bool has_dict_values() const { return at<3>().valid(); }
-  ::protozero::RepeatedFieldIterator<::protozero::ConstBytes> dict_values() const { return GetRepeated<::protozero::ConstBytes>(3); }
-  bool has_array_values() const { return at<4>().valid(); }
-  ::protozero::RepeatedFieldIterator<::protozero::ConstBytes> array_values() const { return GetRepeated<::protozero::ConstBytes>(4); }
-  bool has_int_value() const { return at<5>().valid(); }
-  int64_t int_value() const { return at<5>().as_int64(); }
-  bool has_double_value() const { return at<6>().valid(); }
-  double double_value() const { return at<6>().as_double(); }
-  bool has_bool_value() const { return at<7>().valid(); }
-  bool bool_value() const { return at<7>().as_bool(); }
-  bool has_string_value() const { return at<8>().valid(); }
-  ::protozero::ConstChars string_value() const { return at<8>().as_string(); }
-};
-
-class DebugAnnotation_NestedValue : public ::protozero::Message {
- public:
-  using Decoder = DebugAnnotation_NestedValue_Decoder;
-  enum : int32_t {
-    kNestedTypeFieldNumber = 1,
-    kDictKeysFieldNumber = 2,
-    kDictValuesFieldNumber = 3,
-    kArrayValuesFieldNumber = 4,
-    kIntValueFieldNumber = 5,
-    kDoubleValueFieldNumber = 6,
-    kBoolValueFieldNumber = 7,
-    kStringValueFieldNumber = 8,
-  };
-  using NestedType = ::perfetto::protos::pbzero::DebugAnnotation_NestedValue_NestedType;
-  static const NestedType UNSPECIFIED = DebugAnnotation_NestedValue_NestedType_UNSPECIFIED;
-  static const NestedType DICT = DebugAnnotation_NestedValue_NestedType_DICT;
-  static const NestedType ARRAY = DebugAnnotation_NestedValue_NestedType_ARRAY;
-
-  using FieldMetadata_NestedType =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kEnum,
-      ::perfetto::protos::pbzero::DebugAnnotation_NestedValue_NestedType,
-      DebugAnnotation_NestedValue>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_NestedType kNestedType() { return {}; }
-  void set_nested_type(::perfetto::protos::pbzero::DebugAnnotation_NestedValue_NestedType value) {
-    static constexpr uint32_t field_id = FieldMetadata_NestedType::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kEnum>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_DictKeys =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kRepeatedNotPacked,
-      ::protozero::proto_utils::ProtoSchemaType::kString,
-      std::string,
-      DebugAnnotation_NestedValue>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_DictKeys kDictKeys() { return {}; }
-  void add_dict_keys(const char* data, size_t size) {
-    AppendBytes(FieldMetadata_DictKeys::kFieldId, data, size);
-  }
-  void add_dict_keys(std::string value) {
-    static constexpr uint32_t field_id = FieldMetadata_DictKeys::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kString>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_DictValues =
-    ::protozero::proto_utils::FieldMetadata<
-      3,
-      ::protozero::proto_utils::RepetitionType::kRepeatedNotPacked,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      DebugAnnotation_NestedValue,
-      DebugAnnotation_NestedValue>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_DictValues kDictValues() { return {}; }
-  template <typename T = DebugAnnotation_NestedValue> T* add_dict_values() {
-    return BeginNestedMessage<T>(3);
-  }
-
-
-  using FieldMetadata_ArrayValues =
-    ::protozero::proto_utils::FieldMetadata<
-      4,
-      ::protozero::proto_utils::RepetitionType::kRepeatedNotPacked,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      DebugAnnotation_NestedValue,
-      DebugAnnotation_NestedValue>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_ArrayValues kArrayValues() { return {}; }
-  template <typename T = DebugAnnotation_NestedValue> T* add_array_values() {
-    return BeginNestedMessage<T>(4);
-  }
-
-
-  using FieldMetadata_IntValue =
-    ::protozero::proto_utils::FieldMetadata<
-      5,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt64,
-      int64_t,
-      DebugAnnotation_NestedValue>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_IntValue kIntValue() { return {}; }
-  void set_int_value(int64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_IntValue::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_DoubleValue =
-    ::protozero::proto_utils::FieldMetadata<
-      6,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kDouble,
-      double,
-      DebugAnnotation_NestedValue>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_DoubleValue kDoubleValue() { return {}; }
-  void set_double_value(double value) {
-    static constexpr uint32_t field_id = FieldMetadata_DoubleValue::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kDouble>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_BoolValue =
-    ::protozero::proto_utils::FieldMetadata<
-      7,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kBool,
-      bool,
-      DebugAnnotation_NestedValue>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_BoolValue kBoolValue() { return {}; }
-  void set_bool_value(bool value) {
-    static constexpr uint32_t field_id = FieldMetadata_BoolValue::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kBool>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_StringValue =
-    ::protozero::proto_utils::FieldMetadata<
-      8,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kString,
-      std::string,
-      DebugAnnotation_NestedValue>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_StringValue kStringValue() { return {}; }
-  void set_string_value(const char* data, size_t size) {
-    AppendBytes(FieldMetadata_StringValue::kFieldId, data, size);
-  }
-  void set_string_value(std::string value) {
-    static constexpr uint32_t field_id = FieldMetadata_StringValue::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kString>
-        ::Append(*this, field_id, value);
-  }
-};
-
-} // Namespace.
-} // Namespace.
-} // Namespace.
-#endif  // Include guard.
-/*
- * Copyright (C) 2019 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef INCLUDE_PERFETTO_TRACING_DEBUG_ANNOTATION_H_
-#define INCLUDE_PERFETTO_TRACING_DEBUG_ANNOTATION_H_
-
-// gen_amalgamated expanded: #include "perfetto/base/export.h"
-// gen_amalgamated expanded: #include "perfetto/tracing/traced_value_forward.h"
-// gen_amalgamated expanded: #include "protos/perfetto/trace/track_event/debug_annotation.pbzero.h"
-
-#include <stdint.h>
-
-#include <memory>
-#include <string>
-
-namespace {
-// std::underlying_type can't be used with non-enum types, so we need this
-// indirection.
-template <typename T, bool = std::is_enum<T>::value>
-struct safe_underlying_type {
-  using type = typename std::underlying_type<T>::type;
-};
-
-template <typename T>
-struct safe_underlying_type<T, false> {
-  using type = T;
-};
-}  // namespace
-
-namespace perfetto {
-namespace protos {
-namespace pbzero {
-class DebugAnnotation;
-}  // namespace pbzero
-}  // namespace protos
-
-// A base class for custom track event debug annotations.
-class PERFETTO_EXPORT DebugAnnotation {
- public:
-  DebugAnnotation() = default;
-  virtual ~DebugAnnotation();
-
-  // Called to write the contents of the debug annotation into the trace.
-  virtual void Add(protos::pbzero::DebugAnnotation*) const = 0;
-
-  void WriteIntoTracedValue(TracedValue context) const;
-};
-
-}  // namespace perfetto
-
-#endif  // INCLUDE_PERFETTO_TRACING_DEBUG_ANNOTATION_H_
-// gen_amalgamated begin header: include/perfetto/tracing/traced_value.h
-// gen_amalgamated begin header: include/perfetto/tracing/internal/checked_scope.h
-/*
- * Copyright (C) 2021 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef INCLUDE_PERFETTO_TRACING_INTERNAL_CHECKED_SCOPE_H_
-#define INCLUDE_PERFETTO_TRACING_INTERNAL_CHECKED_SCOPE_H_
-
-// gen_amalgamated expanded: #include "perfetto/base/export.h"
-// gen_amalgamated expanded: #include "perfetto/base/logging.h"
-
-namespace perfetto {
-namespace internal {
-
-#if PERFETTO_DCHECK_IS_ON()
-
-// Checker to ensure that despite multiple scopes being present, only the active
-// one is being accessed. Rules:
-// - Only an active scope can create inner scopes. When this happens, it stops
-// being active and the inner scope becomes active instead.
-// - Only an active scope can be destroyed. When this happens, its parent scope
-// becomes active.
-class PERFETTO_EXPORT CheckedScope {
- public:
-  explicit CheckedScope(CheckedScope* parent_scope);
-  ~CheckedScope();
-  CheckedScope(CheckedScope&&);
-  CheckedScope& operator=(CheckedScope&&);
-  CheckedScope(const CheckedScope&) = delete;
-  CheckedScope& operator=(const CheckedScope&) = delete;
-
-  void Reset();
-
-  CheckedScope* parent_scope() const { return parent_scope_; }
-  bool is_active() const { return is_active_; }
-
- private:
-  void set_is_active(bool is_active) { is_active_ = is_active; }
-
-  bool is_active_ = true;
-  CheckedScope* parent_scope_;
-
-  bool deleted_ = false;
-};
-
-#else
-
-// Dummy for cases when DCHECK is not enabled. Methods are marked constexpr to
-// ensure that the compiler can inline and optimise them away.
-class CheckedScope {
- public:
-  inline explicit CheckedScope(CheckedScope*) {}
-  inline ~CheckedScope() {}
-
-  inline void Reset() {}
-
-  inline CheckedScope* parent_scope() const { return nullptr; }
-  inline bool is_active() const { return true; }
-};
-
-#endif  // PERFETTO_DCHECK_IS_ON()
-
-}  // namespace internal
-}  // namespace perfetto
-
-#endif  // INCLUDE_PERFETTO_TRACING_INTERNAL_CHECKED_SCOPE_H_
-// gen_amalgamated begin header: include/perfetto/tracing/string_helpers.h
-/*
- * Copyright (C) 2021 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef INCLUDE_PERFETTO_TRACING_STRING_HELPERS_H_
-#define INCLUDE_PERFETTO_TRACING_STRING_HELPERS_H_
-
-// gen_amalgamated expanded: #include "perfetto/base/export.h"
-
-#include <cstddef>
-#include <string>
-
-namespace perfetto {
-
-// A wrapper for marking strings that can't be determined to be static at build
-// time, but are in fact static.
-class PERFETTO_EXPORT StaticString {
- public:
-  // Implicit constructor for string literals.
-  template <size_t N>
-  constexpr StaticString(const char (&str)[N]) : value(str) {}
-
-  // Implicit constructor for null strings.
-  constexpr StaticString(std::nullptr_t) : value(nullptr) {}
-
-  constexpr explicit StaticString(const char* str) : value(str) {}
-
-  const char* value;
-};
-
-namespace internal {
-
-// Ensure that |string| is a static constant string.
-//
-// If you get a compiler failure here, you are most likely trying to use
-// TRACE_EVENT with a dynamic event name. There are two ways to fix this:
-//
-// 1) If the event name is actually dynamic (e.g., std::string), write it into
-//    the event manually:
-//
-//      TRACE_EVENT("category", nullptr, [&](perfetto::EventContext ctx) {
-//        ctx.event()->set_name(dynamic_name);
-//      });
-//
-// 2) If the name is static, but the pointer is computed at runtime, wrap it
-//    with perfetto::StaticString:
-//
-//      TRACE_EVENT("category", perfetto::StaticString{name});
-//
-//    DANGER: Using perfetto::StaticString with strings whose contents change
-//            dynamically can cause silent trace data corruption.
-//
-constexpr const char* GetStaticString(StaticString string) {
-  return string.value;
-}
-
-}  // namespace internal
-
-// A explicit wrapper for marking strings as dynamic to ensure that perfetto
-// doesn't try to cache the pointer value.
-class PERFETTO_EXPORT DynamicString {
- public:
-  explicit DynamicString(const std::string& str)
-      : value(str.data()), length(str.length()) {}
-  explicit DynamicString(const char* str) : value(str), length(strlen(str)) {}
-  DynamicString(const char* str, size_t len) : value(str), length(len) {}
-
-  const char* value;
-  size_t length;
-};
-
-}  // namespace perfetto
-
-#endif  // INCLUDE_PERFETTO_TRACING_STRING_HELPERS_H_
-/*
- * Copyright (C) 2021 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef INCLUDE_PERFETTO_TRACING_TRACED_VALUE_H_
-#define INCLUDE_PERFETTO_TRACING_TRACED_VALUE_H_
-
-// gen_amalgamated expanded: #include "perfetto/base/compiler.h"
-// gen_amalgamated expanded: #include "perfetto/base/export.h"
-// gen_amalgamated expanded: #include "perfetto/base/template_util.h"
-// gen_amalgamated expanded: #include "perfetto/tracing/internal/checked_scope.h"
-// gen_amalgamated expanded: #include "perfetto/tracing/string_helpers.h"
-// gen_amalgamated expanded: #include "perfetto/tracing/traced_value_forward.h"
-
-#include <memory>
-#include <type_traits>
-#include <utility>
-
-namespace perfetto {
-
-namespace protos {
-namespace pbzero {
-class DebugAnnotation;
-}
-}  // namespace protos
-
-class DebugAnnotation;
-
-// These classes provide a JSON-inspired way to write structed data into traces.
-//
-// Each TracedValue can be consumed exactly once to write a value into a trace
-// using one of the Write* methods.
-//
-// Write* methods fall into two categories:
-// - Primitive types (int, string, bool, double, etc): they just write the
-//   provided value, consuming the TracedValue in the process.
-// - Complex types (arrays and dicts): they consume the TracedValue and
-//   return a corresponding scoped object (TracedArray or TracedDictionary).
-//   This scope then can be used to write multiple items into the container:
-//   TracedArray::AppendItem and TracedDictionary::AddItem return a new
-//   TracedValue which then can be used to write an element of the
-//   dictionary or array.
-//
-// To define how a custom class should be written into the trace, users should
-// define one of the two following functions:
-// - Foo::WriteIntoTrace(TracedValue) const
-//   (preferred for code which depends on perfetto directly)
-// - perfetto::TraceFormatTraits<T>::WriteIntoTrace(
-//       TracedValue, const T&);
-//   (should be used if T is defined in a library which doesn't know anything
-//   about tracing).
-//
-//
-// After definiting a conversion method, the object can be used directly as a
-// TRACE_EVENT argument:
-//
-// Foo foo;
-// TRACE_EVENT("cat", "Event", "arg", foo);
-//
-// Examples:
-//
-// TRACE_EVENT("cat", "event", "params", [&](perfetto::TracedValue context)
-// {
-//   auto dict = std::move(context).WriteDictionary();
-//   dict->Add("param1", param1);
-//   dict->Add("param2", param2);
-//   ...
-//   dict->Add("paramN", paramN);
-//
-//   {
-//     auto inner_array = dict->AddArray("inner");
-//     inner_array->Append(value1);
-//     inner_array->Append(value2);
-//   }
-// });
-//
-// template <typename T>
-// TraceFormatTraits<std::optional<T>>::WriteIntoTrace(
-//    TracedValue context, const std::optional<T>& value) {
-//  if (!value) {
-//    std::move(context).WritePointer(nullptr);
-//    return;
-//  }
-//  perfetto::WriteIntoTrace(std::move(context), *value);
-// }
-//
-// template <typename T>
-// TraceFormatTraits<std::vector<T>>::WriteIntoTrace(
-//    TracedValue context, const std::array<T>& value) {
-//  auto array = std::move(context).WriteArray();
-//  for (const auto& item: value) {
-//    array_scope.Append(item);
-//  }
-// }
-//
-// class Foo {
-//   void WriteIntoTrace(TracedValue context) const {
-//     auto dict = std::move(context).WriteDictionary();
-//     dict->Set("key", 42);
-//     dict->Set("foo", "bar");
-//     dict->Set("member", member_);
-//   }
-// }
-namespace internal {
-PERFETTO_EXPORT TracedValue
-CreateTracedValueFromProto(protos::pbzero::DebugAnnotation*);
-}
-
-class PERFETTO_EXPORT TracedValue {
- public:
-  TracedValue(const TracedValue&) = delete;
-  TracedValue& operator=(const TracedValue&) = delete;
-  TracedValue& operator=(TracedValue&&) = delete;
-  TracedValue(TracedValue&&) = default;
-  ~TracedValue() = default;
-
-  // TracedValue represents a context into which a single value can be written
-  // (either by writing it directly for primitive types, or by creating a
-  // TracedArray or TracedDictionary for the complex types). This is enforced
-  // by allowing Write* methods to be called only on rvalue references.
-
-  void WriteInt64(int64_t value) &&;
-  void WriteUInt64(uint64_t value) &&;
-  void WriteDouble(double value) &&;
-  void WriteBoolean(bool value) &&;
-  void WriteString(const char*) &&;
-  void WriteString(const char*, size_t len) &&;
-  void WriteString(const std::string&) &&;
-  void WritePointer(const void* value) &&;
-
-  // Rules for writing nested dictionaries and arrays:
-  // - Only one scope (TracedArray, TracedDictionary or TracedValue) can be
-  // active at the same time. It's only allowed to call methods on the active
-  // scope.
-  // - When a scope creates a nested scope, the new scope becomes active.
-  // - When a scope is destroyed, it's parent scope becomes active again.
-  //
-  // Typically users will have to create a scope only at the beginning of a
-  // conversion function and this scope should be destroyed at the end of it.
-  // TracedArray::Append and TracedDictionary::Add create, write and complete
-  // inner scopes automatically.
-
-  // Scope which allows multiple values to be appended.
-  TracedArray WriteArray() && PERFETTO_WARN_UNUSED_RESULT;
-
-  // Scope which allows multiple key-value pairs to be added.
-  TracedDictionary WriteDictionary() && PERFETTO_WARN_UNUSED_RESULT;
-
- private:
-  friend class TracedArray;
-  friend class TracedDictionary;
-  friend TracedValue internal::CreateTracedValueFromProto(
-      protos::pbzero::DebugAnnotation*);
-
-  static TracedValue CreateFromProto(protos::pbzero::DebugAnnotation*);
-
-  inline explicit TracedValue(protos::pbzero::DebugAnnotation* context,
-                              internal::CheckedScope* parent_scope)
-      : context_(context), checked_scope_(parent_scope) {}
-
-  // Temporary support for perfetto::DebugAnnotation C++ class before it's going
-  // to be replaced by TracedValue.
-  // TODO(altimin): Convert v8 to use TracedValue directly and delete it.
-  friend class DebugAnnotation;
-
-  protos::pbzero::DebugAnnotation* const context_ = nullptr;
-
-  internal::CheckedScope checked_scope_;
-};
-
-class PERFETTO_EXPORT TracedArray {
- public:
-  TracedArray(const TracedArray&) = delete;
-  TracedArray& operator=(const TracedArray&) = delete;
-  TracedArray& operator=(TracedArray&&) = delete;
-  TracedArray(TracedArray&&) = default;
-  ~TracedArray() = default;
-
-  TracedValue AppendItem();
-
-  template <typename T>
-  void Append(T&& value) {
-    WriteIntoTracedValue(AppendItem(), std::forward<T>(value));
-  }
-
-  TracedDictionary AppendDictionary() PERFETTO_WARN_UNUSED_RESULT;
-  TracedArray AppendArray();
-
- private:
-  friend class TracedValue;
-
-  inline explicit TracedArray(protos::pbzero::DebugAnnotation* context,
-                              internal::CheckedScope* parent_scope)
-      : context_(context), checked_scope_(parent_scope) {}
-
-  protos::pbzero::DebugAnnotation* context_;
-
-  internal::CheckedScope checked_scope_;
-};
-
-class PERFETTO_EXPORT TracedDictionary {
- public:
-  TracedDictionary(const TracedDictionary&) = delete;
-  TracedDictionary& operator=(const TracedDictionary&) = delete;
-  TracedDictionary& operator=(TracedDictionary&&) = delete;
-  TracedDictionary(TracedDictionary&&) = default;
-  ~TracedDictionary() = default;
-
-  // There are two paths for writing dictionary keys: fast path for writing
-  // compile-time const, whose pointer is remains valid during the entire
-  // runtime of the program and the slow path for dynamic strings, which need to
-  // be copied.
-  // In the most common case, a string literal can be passed to `Add`/`AddItem`.
-  // In other cases, either StaticString or DynamicString declarations are
-  // needed.
-
-  TracedValue AddItem(StaticString key);
-  TracedValue AddItem(DynamicString key);
-
-  template <typename T>
-  void Add(StaticString key, T&& value) {
-    WriteIntoTracedValue(AddItem(key), std::forward<T>(value));
-  }
-
-  template <typename T>
-  void Add(DynamicString key, T&& value) {
-    WriteIntoTracedValue(AddItem(key), std::forward<T>(value));
-  }
-
-  TracedDictionary AddDictionary(StaticString key);
-  TracedDictionary AddDictionary(DynamicString key);
-  TracedArray AddArray(StaticString key);
-  TracedArray AddArray(DynamicString key);
-
- private:
-  friend class TracedValue;
-
-  inline explicit TracedDictionary(protos::pbzero::DebugAnnotation* context,
-                                   internal::CheckedScope* parent_scope)
-      : context_(context), checked_scope_(parent_scope) {}
-
-  protos::pbzero::DebugAnnotation* context_;
-
-  internal::CheckedScope checked_scope_;
-};
-
-namespace internal {
-
-// SFINAE helpers for finding a right overload to convert a given class to
-// trace-friendly form, ordered from most to least preferred.
-
-constexpr int kMaxWriteImplPriority = 4;
-
-// If T has WriteIntoTracedValue member function, call it.
-template <typename T>
-decltype(std::declval<T>().WriteIntoTracedValue(std::declval<TracedValue>()),
-         void())
-WriteImpl(base::priority_tag<4>, TracedValue context, T&& value) {
-  value.WriteIntoTracedValue(std::move(context));
-}
-
-// If T has WriteIntoTrace member function, call it.
-template <typename T>
-decltype(std::declval<T>().WriteIntoTrace(std::declval<TracedValue>()), void())
-WriteImpl(base::priority_tag<4>, TracedValue context, T&& value) {
-  value.WriteIntoTrace(std::move(context));
-}
-
-// If perfetto::TraceFormatTraits<T>::WriteIntoTracedValue(TracedValue, const
-// T&) is available, use it.
-template <typename T>
-decltype(TraceFormatTraits<base::remove_cvref_t<T>>::WriteIntoTracedValue(
-             std::declval<TracedValue>(),
-             std::declval<T>()),
-         void())
-WriteImpl(base::priority_tag<3>, TracedValue context, T&& value) {
-  TraceFormatTraits<base::remove_cvref_t<T>>::WriteIntoTracedValue(
-      std::move(context), std::forward<T>(value));
-}
-
-// If perfetto::TraceFormatTraits<T>::WriteIntoTrace(TracedValue, const T&)
-// is available, use it.
-template <typename T>
-decltype(TraceFormatTraits<base::remove_cvref_t<T>>::WriteIntoTrace(
-             std::declval<TracedValue>(),
-             std::declval<T>()),
-         void())
-WriteImpl(base::priority_tag<3>, TracedValue context, T&& value) {
-  TraceFormatTraits<base::remove_cvref_t<T>>::WriteIntoTrace(
-      std::move(context), std::forward<T>(value));
-}
-
-// If T has operator(), which takes TracedValue, use it.
-// Very useful for lambda resolutions.
-template <typename T>
-decltype(std::declval<T>()(std::declval<TracedValue>()), void())
-WriteImpl(base::priority_tag<2>, TracedValue context, T&& value) {
-  std::forward<T>(value)(std::move(context));
-}
-
-// If T is a container and its elements have tracing support, use it.
-//
-// Note: a reference to T should be passed to std::begin, otherwise
-// for non-reference types const T& will be passed to std::begin, losing
-// support for non-const WriteIntoTracedValue methods.
-template <typename T>
-typename check_traced_value_support<
-    decltype(*std::begin(std::declval<T&>()))>::type
-WriteImpl(base::priority_tag<1>, TracedValue context, T&& value) {
-  auto array = std::move(context).WriteArray();
-  for (auto&& item : value) {
-    array.Append(item);
-  }
-}
-
-// std::underlying_type can't be used with non-enum types, so we need this
-// indirection.
-template <typename T, bool = std::is_enum<T>::value>
-struct safe_underlying_type {
-  using type = typename std::underlying_type<T>::type;
-};
-
-template <typename T>
-struct safe_underlying_type<T, false> {
-  using type = T;
-};
-
-template <typename T>
-struct is_incomplete_type {
-  static constexpr bool value = sizeof(T) != 0;
-};
-
-// sizeof is not available for const char[], but it's still not considered to be
-// an incomplete type for our purposes as the size can be determined at runtime
-// due to strings being null-terminated.
-template <>
-struct is_incomplete_type<const char[]> {
-  static constexpr bool value = true;
-};
-
-}  // namespace internal
-
-// Helper template to determine if a given type can be passed to
-// perfetto::WriteIntoTracedValue. These templates will fail to resolve if the
-// class does not have it support, so they are useful in SFINAE and in producing
-// helpful compiler results.
-template <typename T, class Result = void>
-using check_traced_value_support_t = decltype(
-    internal::WriteImpl(
-        std::declval<base::priority_tag<internal::kMaxWriteImplPriority>>(),
-        std::declval<TracedValue>(),
-        std::declval<T>()),
-    std::declval<Result>());
-
-// check_traced_value_support<T, V>::type is defined (and equal to V) iff T
-// supports being passed to WriteIntoTracedValue. See the comment in
-// traced_value_forward.h for more details.
-template <typename T, class Result>
-struct check_traced_value_support<T,
-                                  Result,
-                                  check_traced_value_support_t<T, Result>> {
-  static_assert(
-      internal::is_incomplete_type<T>::value,
-      "perfetto::TracedValue should not be used with incomplete types");
-
-  static constexpr bool value = true;
-  using type = Result;
-};
-
-namespace internal {
-
-// Helper class to check if a given type can be passed to
-// perfetto::WriteIntoTracedValue. This template will always resolve (with
-// |value| being set to either true or false depending on presence of the
-// support, so this macro is useful in the situation when you want to e.g. OR
-// the result with some other conditions.
-//
-// In this case, compiler will not give you the full deduction chain, so, for
-// example, use check_traced_value_support for writing positive static_asserts
-// and has_traced_value_support for writing negative.
-template <typename T>
-class has_traced_value_support {
-  using Yes = char[1];
-  using No = char[2];
-
-  template <typename V>
-  static Yes& check_support(check_traced_value_support_t<V, int>);
-  template <typename V>
-  static No& check_support(...);
-
- public:
-  static constexpr bool value = sizeof(Yes) == sizeof(check_support<T>(0));
-};
-
-}  // namespace internal
-
-template <typename T>
-void WriteIntoTracedValue(TracedValue context, T&& value) {
-  // TODO(altimin): Add a URL to documentation and a list of common failure
-  // patterns.
-  static_assert(
-      internal::has_traced_value_support<T>::value,
-      "The provided type (passed to TRACE_EVENT argument / TracedArray::Append "
-      "/ TracedDictionary::Add) does not support being written in a trace "
-      "format. Please see the comment in traced_value.h for more details.");
-
-  // Should be kept in sync with check_traced_value_support_t!
-  internal::WriteImpl(base::priority_tag<internal::kMaxWriteImplPriority>(),
-                      std::move(context), std::forward<T>(value));
-}
-
-// Helpers to write a given value into TracedValue even if the given type
-// doesn't support conversion (in which case the provided fallback should be
-// used). Useful for automatically generating conversions for autogenerated
-// code, but otherwise shouldn't be used as non-autogenerated code is expected
-// to define WriteIntoTracedValue convertor.
-// See WriteWithFallback test in traced_value_unittest.cc for a concrete
-// example.
-template <typename T>
-typename std::enable_if<internal::has_traced_value_support<T>::value>::type
-WriteIntoTracedValueWithFallback(TracedValue context,
-                                 T&& value,
-                                 const std::string&) {
-  WriteIntoTracedValue(std::move(context), std::forward<T>(value));
-}
-
-template <typename T>
-typename std::enable_if<!internal::has_traced_value_support<T>::value>::type
-WriteIntoTracedValueWithFallback(TracedValue context,
-                                 T&&,
-                                 const std::string& fallback) {
-  std::move(context).WriteString(fallback);
-}
-
-// TraceFormatTraits implementations for primitive types.
-
-// Specialisation for signed integer types (note: it excludes enums, which have
-// their own explicit specialisation).
-template <typename T>
-struct TraceFormatTraits<
-    T,
-    typename std::enable_if<std::is_integral<T>::value &&
-                            !std::is_same<T, bool>::value &&
-                            std::is_signed<T>::value>::type> {
-  inline static void WriteIntoTrace(TracedValue context, T value) {
-    std::move(context).WriteInt64(value);
-  }
-};
-
-// Specialisation for unsigned integer types (note: it excludes enums, which
-// have their own explicit specialisation).
-template <typename T>
-struct TraceFormatTraits<
-    T,
-    typename std::enable_if<std::is_integral<T>::value &&
-                            !std::is_same<T, bool>::value &&
-                            std::is_unsigned<T>::value>::type> {
-  inline static void WriteIntoTrace(TracedValue context, T value) {
-    std::move(context).WriteUInt64(value);
-  }
-};
-
-// Specialisation for bools.
-template <>
-struct TraceFormatTraits<bool> {
-  inline static void WriteIntoTrace(TracedValue context, bool value) {
-    std::move(context).WriteBoolean(value);
-  }
-};
-
-// Specialisation for floating point values.
-template <typename T>
-struct TraceFormatTraits<
-    T,
-    typename std::enable_if<std::is_floating_point<T>::value>::type> {
-  inline static void WriteIntoTrace(TracedValue context, T value) {
-    std::move(context).WriteDouble(static_cast<double>(value));
-  }
-};
-
-// Specialisation for signed enums.
-template <typename T>
-struct TraceFormatTraits<
-    T,
-    typename std::enable_if<
-        std::is_enum<T>::value &&
-        std::is_signed<
-            typename internal::safe_underlying_type<T>::type>::value>::type> {
-  inline static void WriteIntoTrace(TracedValue context, T value) {
-    std::move(context).WriteInt64(static_cast<int64_t>(value));
-  }
-};
-
-// Specialisation for unsigned enums.
-template <typename T>
-struct TraceFormatTraits<
-    T,
-    typename std::enable_if<
-        std::is_enum<T>::value &&
-        std::is_unsigned<
-            typename internal::safe_underlying_type<T>::type>::value>::type> {
-  inline static void WriteIntoTrace(TracedValue context, T value) {
-    std::move(context).WriteUInt64(static_cast<uint64_t>(value));
-  }
-};
-
-// Specialisations for C-style strings.
-template <>
-struct TraceFormatTraits<const char*> {
-  inline static void WriteIntoTrace(TracedValue context, const char* value) {
-    std::move(context).WriteString(value);
-  }
-};
-
-template <>
-struct TraceFormatTraits<char[]> {
-  inline static void WriteIntoTrace(TracedValue context, const char value[]) {
-    std::move(context).WriteString(value);
-  }
-};
-
-template <size_t N>
-struct TraceFormatTraits<char[N]> {
-  inline static void WriteIntoTrace(TracedValue context, const char value[N]) {
-    std::move(context).WriteString(value);
-  }
-};
-
-// Specialisation for C++ strings.
-template <>
-struct TraceFormatTraits<std::string> {
-  inline static void WriteIntoTrace(TracedValue context,
-                                    const std::string& value) {
-    std::move(context).WriteString(value);
-  }
-};
-
-// Specialisation for (const) void*, which writes the pointer value.
-template <>
-struct TraceFormatTraits<void*> {
-  inline static void WriteIntoTrace(TracedValue context, void* value) {
-    std::move(context).WritePointer(value);
-  }
-};
-
-template <>
-struct TraceFormatTraits<const void*> {
-  inline static void WriteIntoTrace(TracedValue context, const void* value) {
-    std::move(context).WritePointer(value);
-  }
-};
-
-// Specialisation for std::unique_ptr<>, which writes either nullptr or the
-// object it points to.
-template <typename T>
-struct TraceFormatTraits<std::unique_ptr<T>, check_traced_value_support_t<T>> {
-  inline static void WriteIntoTrace(TracedValue context,
-                                    const std::unique_ptr<T>& value) {
-    ::perfetto::WriteIntoTracedValue(std::move(context), value.get());
-  }
-};
-
-// Specialisation for raw pointer, which writes either nullptr or the object it
-// points to.
-template <typename T>
-struct TraceFormatTraits<T*, check_traced_value_support_t<T>> {
-  inline static void WriteIntoTrace(TracedValue context, T* value) {
-    if (!value) {
-      std::move(context).WritePointer(nullptr);
-      return;
-    }
-    ::perfetto::WriteIntoTracedValue(std::move(context), *value);
-  }
-};
-
-// Specialisation for nullptr.
-template <>
-struct TraceFormatTraits<std::nullptr_t> {
-  inline static void WriteIntoTrace(TracedValue context, std::nullptr_t) {
-    std::move(context).WritePointer(nullptr);
-  }
-};
-
-}  // namespace perfetto
-
-#endif  // INCLUDE_PERFETTO_TRACING_TRACED_VALUE_H_
-// gen_amalgamated begin header: include/perfetto/tracing/track.h
-// gen_amalgamated begin header: include/perfetto/base/proc_utils.h
-/*
- * Copyright (C) 2019 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef INCLUDE_PERFETTO_BASE_PROC_UTILS_H_
-#define INCLUDE_PERFETTO_BASE_PROC_UTILS_H_
-
-#include <stdint.h>
-
-// gen_amalgamated expanded: #include "perfetto/base/build_config.h"
-
-#if PERFETTO_BUILDFLAG(PERFETTO_OS_WIN)
-#include <Windows.h>
-#include <processthreadsapi.h>
-#elif PERFETTO_BUILDFLAG(PERFETTO_OS_FUCHSIA)
-#include <zircon/process.h>
-#include <zircon/types.h>
-#else
-#include <unistd.h>
-#endif
-
-namespace perfetto {
-namespace base {
-
-#if PERFETTO_BUILDFLAG(PERFETTO_OS_FUCHSIA)
-using PlatformProcessId = zx_handle_t;
-inline PlatformProcessId GetProcessId() {
-  return zx_process_self();
-}
-#elif PERFETTO_BUILDFLAG(PERFETTO_OS_WIN)
-using PlatformProcessId = uint64_t;
-inline PlatformProcessId GetProcessId() {
-  return static_cast<uint64_t>(GetCurrentProcessId());
-}
-#else
-using PlatformProcessId = pid_t;
-inline PlatformProcessId GetProcessId() {
-  return getpid();
-}
-#endif
-
-}  // namespace base
-}  // namespace perfetto
-
-#endif  // INCLUDE_PERFETTO_BASE_PROC_UTILS_H_
-// gen_amalgamated begin header: include/perfetto/base/thread_utils.h
-/*
- * Copyright (C) 2018 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef INCLUDE_PERFETTO_BASE_THREAD_UTILS_H_
-#define INCLUDE_PERFETTO_BASE_THREAD_UTILS_H_
-
-#include <stdint.h>
-
-// gen_amalgamated expanded: #include "perfetto/base/build_config.h"
-
-#if PERFETTO_BUILDFLAG(PERFETTO_OS_WIN)
-#include <Windows.h>
-#include <processthreadsapi.h>
-#elif PERFETTO_BUILDFLAG(PERFETTO_OS_FUCHSIA)
-#include <zircon/process.h>
-#include <zircon/types.h>
-#elif PERFETTO_BUILDFLAG(PERFETTO_OS_LINUX) || \
-    PERFETTO_BUILDFLAG(PERFETTO_OS_ANDROID)
-#include <sys/syscall.h>
-#include <sys/types.h>
-#include <unistd.h>
-#else
-#include <pthread.h>
-#endif
-
-namespace perfetto {
-namespace base {
-
-#if PERFETTO_BUILDFLAG(PERFETTO_OS_ANDROID)
-using PlatformThreadId = pid_t;
-inline PlatformThreadId GetThreadId() {
-  return gettid();
-}
-#elif PERFETTO_BUILDFLAG(PERFETTO_OS_LINUX)
-using PlatformThreadId = pid_t;
-inline PlatformThreadId GetThreadId() {
-  return static_cast<pid_t>(syscall(__NR_gettid));
-}
-#elif PERFETTO_BUILDFLAG(PERFETTO_OS_FUCHSIA)
-using PlatformThreadId = zx_handle_t;
-inline PlatformThreadId GetThreadId() {
-  return zx_thread_self();
-}
-#elif PERFETTO_BUILDFLAG(PERFETTO_OS_APPLE)
-using PlatformThreadId = uint64_t;
-inline PlatformThreadId GetThreadId() {
-  uint64_t tid;
-  pthread_threadid_np(nullptr, &tid);
-  return tid;
-}
-#elif PERFETTO_BUILDFLAG(PERFETTO_OS_WIN)
-using PlatformThreadId = uint64_t;
-inline PlatformThreadId GetThreadId() {
-  return static_cast<uint64_t>(GetCurrentThreadId());
-}
-#elif PERFETTO_BUILDFLAG(PERFETTO_OS_NACL)
-using PlatformThreadId = pid_t;
-inline PlatformThreadId GetThreadId() {
-  return reinterpret_cast<int32_t>(pthread_self());
-}
-#else  // Default to pthreads in case no OS is set.
-using PlatformThreadId = pthread_t;
-inline PlatformThreadId GetThreadId() {
-  return pthread_self();
-}
-#endif
-
-}  // namespace base
-}  // namespace perfetto
-
-#endif  // INCLUDE_PERFETTO_BASE_THREAD_UTILS_H_
-// gen_amalgamated begin header: include/perfetto/tracing/internal/compile_time_hash.h
-/*
- * Copyright (C) 2021 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef INCLUDE_PERFETTO_TRACING_INTERNAL_COMPILE_TIME_HASH_H_
-#define INCLUDE_PERFETTO_TRACING_INTERNAL_COMPILE_TIME_HASH_H_
-
-#include <stddef.h>
-#include <stdint.h>
-
-namespace perfetto {
-namespace internal {
-
-// A helper class which computes a 64-bit hash of the input data at compile
-// time. The algorithm used is FNV-1a as it is fast and easy to implement and
-// has relatively few collisions.
-// WARNING: This hash function should not be used for any cryptographic purpose.
-class CompileTimeHash {
- public:
-  // Creates an empty hash object
-  constexpr inline CompileTimeHash() {}
-
-  // Hashes a byte array.
-  constexpr inline CompileTimeHash Update(const char* data, size_t size) const {
-    return CompileTimeHash(HashRecursively(kFnv1a64OffsetBasis, data, size));
-  }
-
-  constexpr inline uint64_t digest() const { return result_; }
-
- private:
-  constexpr inline CompileTimeHash(uint64_t result) : result_(result) {}
-
-  static constexpr inline uint64_t HashRecursively(uint64_t value,
-                                                   const char* data,
-                                                   size_t size) {
-    return !size ? value
-                 : HashRecursively(
-                       (value ^ static_cast<uint8_t>(*data)) * kFnv1a64Prime,
-                       data + 1, size - 1);
-  }
-
-  static constexpr uint64_t kFnv1a64OffsetBasis = 0xcbf29ce484222325;
-  static constexpr uint64_t kFnv1a64Prime = 0x100000001b3;
-
-  uint64_t result_ = kFnv1a64OffsetBasis;
-};
-
-}  // namespace internal
-}  // namespace perfetto
-
-#endif  // INCLUDE_PERFETTO_TRACING_INTERNAL_COMPILE_TIME_HASH_H_
-// gen_amalgamated begin header: gen/protos/perfetto/trace/track_event/counter_descriptor.pbzero.h
-// Autogenerated by the ProtoZero compiler plugin. DO NOT EDIT.
-
-#ifndef PERFETTO_PROTOS_PROTOS_PERFETTO_TRACE_TRACK_EVENT_COUNTER_DESCRIPTOR_PROTO_H_
-#define PERFETTO_PROTOS_PROTOS_PERFETTO_TRACE_TRACK_EVENT_COUNTER_DESCRIPTOR_PROTO_H_
-
-#include <stddef.h>
-#include <stdint.h>
-
-// gen_amalgamated expanded: #include "perfetto/protozero/field_writer.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/message.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/packed_repeated_fields.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/proto_decoder.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/proto_utils.h"
-
-namespace perfetto {
-namespace protos {
-namespace pbzero {
-
-enum CounterDescriptor_BuiltinCounterType : int32_t;
-enum CounterDescriptor_Unit : int32_t;
-
-enum CounterDescriptor_BuiltinCounterType : int32_t {
-  CounterDescriptor_BuiltinCounterType_COUNTER_UNSPECIFIED = 0,
-  CounterDescriptor_BuiltinCounterType_COUNTER_THREAD_TIME_NS = 1,
-  CounterDescriptor_BuiltinCounterType_COUNTER_THREAD_INSTRUCTION_COUNT = 2,
-};
-
-const CounterDescriptor_BuiltinCounterType CounterDescriptor_BuiltinCounterType_MIN = CounterDescriptor_BuiltinCounterType_COUNTER_UNSPECIFIED;
-const CounterDescriptor_BuiltinCounterType CounterDescriptor_BuiltinCounterType_MAX = CounterDescriptor_BuiltinCounterType_COUNTER_THREAD_INSTRUCTION_COUNT;
-
-enum CounterDescriptor_Unit : int32_t {
-  CounterDescriptor_Unit_UNIT_UNSPECIFIED = 0,
-  CounterDescriptor_Unit_UNIT_TIME_NS = 1,
-  CounterDescriptor_Unit_UNIT_COUNT = 2,
-  CounterDescriptor_Unit_UNIT_SIZE_BYTES = 3,
-};
-
-const CounterDescriptor_Unit CounterDescriptor_Unit_MIN = CounterDescriptor_Unit_UNIT_UNSPECIFIED;
-const CounterDescriptor_Unit CounterDescriptor_Unit_MAX = CounterDescriptor_Unit_UNIT_SIZE_BYTES;
-
-class CounterDescriptor_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/6, /*HAS_NONPACKED_REPEATED_FIELDS=*/true> {
- public:
-  CounterDescriptor_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit CounterDescriptor_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit CounterDescriptor_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_type() const { return at<1>().valid(); }
-  int32_t type() const { return at<1>().as_int32(); }
-  bool has_categories() const { return at<2>().valid(); }
-  ::protozero::RepeatedFieldIterator<::protozero::ConstChars> categories() const { return GetRepeated<::protozero::ConstChars>(2); }
-  bool has_unit() const { return at<3>().valid(); }
-  int32_t unit() const { return at<3>().as_int32(); }
-  bool has_unit_name() const { return at<6>().valid(); }
-  ::protozero::ConstChars unit_name() const { return at<6>().as_string(); }
-  bool has_unit_multiplier() const { return at<4>().valid(); }
-  int64_t unit_multiplier() const { return at<4>().as_int64(); }
-  bool has_is_incremental() const { return at<5>().valid(); }
-  bool is_incremental() const { return at<5>().as_bool(); }
-};
-
-class CounterDescriptor : public ::protozero::Message {
- public:
-  using Decoder = CounterDescriptor_Decoder;
-  enum : int32_t {
-    kTypeFieldNumber = 1,
-    kCategoriesFieldNumber = 2,
-    kUnitFieldNumber = 3,
-    kUnitNameFieldNumber = 6,
-    kUnitMultiplierFieldNumber = 4,
-    kIsIncrementalFieldNumber = 5,
-  };
-  using BuiltinCounterType = ::perfetto::protos::pbzero::CounterDescriptor_BuiltinCounterType;
-  using Unit = ::perfetto::protos::pbzero::CounterDescriptor_Unit;
-  static const BuiltinCounterType COUNTER_UNSPECIFIED = CounterDescriptor_BuiltinCounterType_COUNTER_UNSPECIFIED;
-  static const BuiltinCounterType COUNTER_THREAD_TIME_NS = CounterDescriptor_BuiltinCounterType_COUNTER_THREAD_TIME_NS;
-  static const BuiltinCounterType COUNTER_THREAD_INSTRUCTION_COUNT = CounterDescriptor_BuiltinCounterType_COUNTER_THREAD_INSTRUCTION_COUNT;
-  static const Unit UNIT_UNSPECIFIED = CounterDescriptor_Unit_UNIT_UNSPECIFIED;
-  static const Unit UNIT_TIME_NS = CounterDescriptor_Unit_UNIT_TIME_NS;
-  static const Unit UNIT_COUNT = CounterDescriptor_Unit_UNIT_COUNT;
-  static const Unit UNIT_SIZE_BYTES = CounterDescriptor_Unit_UNIT_SIZE_BYTES;
-
-  using FieldMetadata_Type =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kEnum,
-      ::perfetto::protos::pbzero::CounterDescriptor_BuiltinCounterType,
-      CounterDescriptor>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Type kType() { return {}; }
-  void set_type(::perfetto::protos::pbzero::CounterDescriptor_BuiltinCounterType value) {
-    static constexpr uint32_t field_id = FieldMetadata_Type::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kEnum>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Categories =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kRepeatedNotPacked,
-      ::protozero::proto_utils::ProtoSchemaType::kString,
-      std::string,
-      CounterDescriptor>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Categories kCategories() { return {}; }
-  void add_categories(const char* data, size_t size) {
-    AppendBytes(FieldMetadata_Categories::kFieldId, data, size);
-  }
-  void add_categories(std::string value) {
-    static constexpr uint32_t field_id = FieldMetadata_Categories::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kString>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Unit =
-    ::protozero::proto_utils::FieldMetadata<
-      3,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kEnum,
-      ::perfetto::protos::pbzero::CounterDescriptor_Unit,
-      CounterDescriptor>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Unit kUnit() { return {}; }
-  void set_unit(::perfetto::protos::pbzero::CounterDescriptor_Unit value) {
-    static constexpr uint32_t field_id = FieldMetadata_Unit::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kEnum>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_UnitName =
-    ::protozero::proto_utils::FieldMetadata<
-      6,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kString,
-      std::string,
-      CounterDescriptor>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_UnitName kUnitName() { return {}; }
-  void set_unit_name(const char* data, size_t size) {
-    AppendBytes(FieldMetadata_UnitName::kFieldId, data, size);
-  }
-  void set_unit_name(std::string value) {
-    static constexpr uint32_t field_id = FieldMetadata_UnitName::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kString>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_UnitMultiplier =
-    ::protozero::proto_utils::FieldMetadata<
-      4,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt64,
-      int64_t,
-      CounterDescriptor>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_UnitMultiplier kUnitMultiplier() { return {}; }
-  void set_unit_multiplier(int64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_UnitMultiplier::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_IsIncremental =
-    ::protozero::proto_utils::FieldMetadata<
-      5,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kBool,
-      bool,
-      CounterDescriptor>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_IsIncremental kIsIncremental() { return {}; }
-  void set_is_incremental(bool value) {
-    static constexpr uint32_t field_id = FieldMetadata_IsIncremental::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kBool>
-        ::Append(*this, field_id, value);
-  }
-};
-
-} // Namespace.
-} // Namespace.
-} // Namespace.
-#endif  // Include guard.
-// gen_amalgamated begin header: gen/protos/perfetto/trace/track_event/track_descriptor.gen.h
-// DO NOT EDIT. Autogenerated by Perfetto cppgen_plugin
-#ifndef PERFETTO_PROTOS_PROTOS_PERFETTO_TRACE_TRACK_EVENT_TRACK_DESCRIPTOR_PROTO_CPP_H_
-#define PERFETTO_PROTOS_PROTOS_PERFETTO_TRACE_TRACK_EVENT_TRACK_DESCRIPTOR_PROTO_CPP_H_
-
-#include <stdint.h>
-#include <bitset>
-#include <vector>
-#include <string>
-#include <type_traits>
-
-// gen_amalgamated expanded: #include "perfetto/protozero/cpp_message_obj.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/copyable_ptr.h"
-// gen_amalgamated expanded: #include "perfetto/base/export.h"
-
-namespace perfetto {
-namespace protos {
-namespace gen {
-class TrackDescriptor;
-class CounterDescriptor;
-class ChromeThreadDescriptor;
-class ThreadDescriptor;
-class ChromeProcessDescriptor;
-class ProcessDescriptor;
-enum CounterDescriptor_BuiltinCounterType : int;
-enum CounterDescriptor_Unit : int;
-enum ChromeThreadDescriptor_ThreadType : int;
-enum ThreadDescriptor_ChromeThreadType : int;
-enum ChromeProcessDescriptor_ProcessType : int;
-enum ProcessDescriptor_ChromeProcessType : int;
-}  // namespace perfetto
-}  // namespace protos
-}  // namespace gen
-
-namespace protozero {
-class Message;
-}  // namespace protozero
-
-namespace perfetto {
-namespace protos {
-namespace gen {
-
-class PERFETTO_EXPORT TrackDescriptor : public ::protozero::CppMessageObj {
- public:
-  enum FieldNumbers {
-    kUuidFieldNumber = 1,
-    kParentUuidFieldNumber = 5,
-    kNameFieldNumber = 2,
-    kProcessFieldNumber = 3,
-    kChromeProcessFieldNumber = 6,
-    kThreadFieldNumber = 4,
-    kChromeThreadFieldNumber = 7,
-    kCounterFieldNumber = 8,
-  };
-
-  TrackDescriptor();
-  ~TrackDescriptor() override;
-  TrackDescriptor(TrackDescriptor&&) noexcept;
-  TrackDescriptor& operator=(TrackDescriptor&&);
-  TrackDescriptor(const TrackDescriptor&);
-  TrackDescriptor& operator=(const TrackDescriptor&);
-  bool operator==(const TrackDescriptor&) const;
-  bool operator!=(const TrackDescriptor& other) const { return !(*this == other); }
-
-  bool ParseFromArray(const void*, size_t) override;
-  std::string SerializeAsString() const override;
-  std::vector<uint8_t> SerializeAsArray() const override;
-  void Serialize(::protozero::Message*) const;
-
-  bool has_uuid() const { return _has_field_[1]; }
-  uint64_t uuid() const { return uuid_; }
-  void set_uuid(uint64_t value) { uuid_ = value; _has_field_.set(1); }
-
-  bool has_parent_uuid() const { return _has_field_[5]; }
-  uint64_t parent_uuid() const { return parent_uuid_; }
-  void set_parent_uuid(uint64_t value) { parent_uuid_ = value; _has_field_.set(5); }
-
-  bool has_name() const { return _has_field_[2]; }
-  const std::string& name() const { return name_; }
-  void set_name(const std::string& value) { name_ = value; _has_field_.set(2); }
-
-  bool has_process() const { return _has_field_[3]; }
-  const ProcessDescriptor& process() const { return *process_; }
-  ProcessDescriptor* mutable_process() { _has_field_.set(3); return process_.get(); }
-
-  bool has_chrome_process() const { return _has_field_[6]; }
-  const ChromeProcessDescriptor& chrome_process() const { return *chrome_process_; }
-  ChromeProcessDescriptor* mutable_chrome_process() { _has_field_.set(6); return chrome_process_.get(); }
-
-  bool has_thread() const { return _has_field_[4]; }
-  const ThreadDescriptor& thread() const { return *thread_; }
-  ThreadDescriptor* mutable_thread() { _has_field_.set(4); return thread_.get(); }
-
-  bool has_chrome_thread() const { return _has_field_[7]; }
-  const ChromeThreadDescriptor& chrome_thread() const { return *chrome_thread_; }
-  ChromeThreadDescriptor* mutable_chrome_thread() { _has_field_.set(7); return chrome_thread_.get(); }
-
-  bool has_counter() const { return _has_field_[8]; }
-  const CounterDescriptor& counter() const { return *counter_; }
-  CounterDescriptor* mutable_counter() { _has_field_.set(8); return counter_.get(); }
-
- private:
-  uint64_t uuid_{};
-  uint64_t parent_uuid_{};
-  std::string name_{};
-  ::protozero::CopyablePtr<ProcessDescriptor> process_;
-  ::protozero::CopyablePtr<ChromeProcessDescriptor> chrome_process_;
-  ::protozero::CopyablePtr<ThreadDescriptor> thread_;
-  ::protozero::CopyablePtr<ChromeThreadDescriptor> chrome_thread_;
-  ::protozero::CopyablePtr<CounterDescriptor> counter_;
-
-  // Allows to preserve unknown protobuf fields for compatibility
-  // with future versions of .proto files.
-  std::string unknown_fields_;
-
-  std::bitset<9> _has_field_{};
-};
-
-}  // namespace perfetto
-}  // namespace protos
-}  // namespace gen
-
-#endif  // PERFETTO_PROTOS_PROTOS_PERFETTO_TRACE_TRACK_EVENT_TRACK_DESCRIPTOR_PROTO_CPP_H_
-// gen_amalgamated begin header: gen/protos/perfetto/trace/track_event/track_descriptor.pbzero.h
-// Autogenerated by the ProtoZero compiler plugin. DO NOT EDIT.
-
-#ifndef PERFETTO_PROTOS_PROTOS_PERFETTO_TRACE_TRACK_EVENT_TRACK_DESCRIPTOR_PROTO_H_
-#define PERFETTO_PROTOS_PROTOS_PERFETTO_TRACE_TRACK_EVENT_TRACK_DESCRIPTOR_PROTO_H_
-
-#include <stddef.h>
-#include <stdint.h>
-
-// gen_amalgamated expanded: #include "perfetto/protozero/field_writer.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/message.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/packed_repeated_fields.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/proto_decoder.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/proto_utils.h"
-
-namespace perfetto {
-namespace protos {
-namespace pbzero {
-
-class ChromeProcessDescriptor;
-class ChromeThreadDescriptor;
-class CounterDescriptor;
-class ProcessDescriptor;
-class ThreadDescriptor;
-
-class TrackDescriptor_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/8, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  TrackDescriptor_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit TrackDescriptor_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit TrackDescriptor_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_uuid() const { return at<1>().valid(); }
-  uint64_t uuid() const { return at<1>().as_uint64(); }
-  bool has_parent_uuid() const { return at<5>().valid(); }
-  uint64_t parent_uuid() const { return at<5>().as_uint64(); }
-  bool has_name() const { return at<2>().valid(); }
-  ::protozero::ConstChars name() const { return at<2>().as_string(); }
-  bool has_process() const { return at<3>().valid(); }
-  ::protozero::ConstBytes process() const { return at<3>().as_bytes(); }
-  bool has_chrome_process() const { return at<6>().valid(); }
-  ::protozero::ConstBytes chrome_process() const { return at<6>().as_bytes(); }
-  bool has_thread() const { return at<4>().valid(); }
-  ::protozero::ConstBytes thread() const { return at<4>().as_bytes(); }
-  bool has_chrome_thread() const { return at<7>().valid(); }
-  ::protozero::ConstBytes chrome_thread() const { return at<7>().as_bytes(); }
-  bool has_counter() const { return at<8>().valid(); }
-  ::protozero::ConstBytes counter() const { return at<8>().as_bytes(); }
-};
-
-class TrackDescriptor : public ::protozero::Message {
- public:
-  using Decoder = TrackDescriptor_Decoder;
-  enum : int32_t {
-    kUuidFieldNumber = 1,
-    kParentUuidFieldNumber = 5,
-    kNameFieldNumber = 2,
-    kProcessFieldNumber = 3,
-    kChromeProcessFieldNumber = 6,
-    kThreadFieldNumber = 4,
-    kChromeThreadFieldNumber = 7,
-    kCounterFieldNumber = 8,
-  };
-
-  using FieldMetadata_Uuid =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      TrackDescriptor>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Uuid kUuid() { return {}; }
-  void set_uuid(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Uuid::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_ParentUuid =
-    ::protozero::proto_utils::FieldMetadata<
-      5,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      TrackDescriptor>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_ParentUuid kParentUuid() { return {}; }
-  void set_parent_uuid(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_ParentUuid::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Name =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kString,
-      std::string,
-      TrackDescriptor>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Name kName() { return {}; }
-  void set_name(const char* data, size_t size) {
-    AppendBytes(FieldMetadata_Name::kFieldId, data, size);
-  }
-  void set_name(std::string value) {
-    static constexpr uint32_t field_id = FieldMetadata_Name::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kString>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Process =
-    ::protozero::proto_utils::FieldMetadata<
-      3,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      ProcessDescriptor,
-      TrackDescriptor>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Process kProcess() { return {}; }
-  template <typename T = ProcessDescriptor> T* set_process() {
-    return BeginNestedMessage<T>(3);
-  }
-
-
-  using FieldMetadata_ChromeProcess =
-    ::protozero::proto_utils::FieldMetadata<
-      6,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      ChromeProcessDescriptor,
-      TrackDescriptor>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_ChromeProcess kChromeProcess() { return {}; }
-  template <typename T = ChromeProcessDescriptor> T* set_chrome_process() {
-    return BeginNestedMessage<T>(6);
-  }
-
-
-  using FieldMetadata_Thread =
-    ::protozero::proto_utils::FieldMetadata<
-      4,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      ThreadDescriptor,
-      TrackDescriptor>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Thread kThread() { return {}; }
-  template <typename T = ThreadDescriptor> T* set_thread() {
-    return BeginNestedMessage<T>(4);
-  }
-
-
-  using FieldMetadata_ChromeThread =
-    ::protozero::proto_utils::FieldMetadata<
-      7,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      ChromeThreadDescriptor,
-      TrackDescriptor>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_ChromeThread kChromeThread() { return {}; }
-  template <typename T = ChromeThreadDescriptor> T* set_chrome_thread() {
-    return BeginNestedMessage<T>(7);
-  }
-
-
-  using FieldMetadata_Counter =
-    ::protozero::proto_utils::FieldMetadata<
-      8,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      CounterDescriptor,
-      TrackDescriptor>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Counter kCounter() { return {}; }
-  template <typename T = CounterDescriptor> T* set_counter() {
-    return BeginNestedMessage<T>(8);
-  }
-
-};
-
-} // Namespace.
-} // Namespace.
-} // Namespace.
-#endif  // Include guard.
-/*
- * Copyright (C) 2019 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef INCLUDE_PERFETTO_TRACING_TRACK_H_
-#define INCLUDE_PERFETTO_TRACING_TRACK_H_
-
-// gen_amalgamated expanded: #include "perfetto/base/export.h"
-// gen_amalgamated expanded: #include "perfetto/base/proc_utils.h"
-// gen_amalgamated expanded: #include "perfetto/base/thread_utils.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/message_handle.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/scattered_heap_buffer.h"
-// gen_amalgamated expanded: #include "perfetto/tracing/internal/compile_time_hash.h"
-// gen_amalgamated expanded: #include "protos/perfetto/trace/trace_packet.pbzero.h"
-// gen_amalgamated expanded: #include "protos/perfetto/trace/track_event/counter_descriptor.pbzero.h"
-// gen_amalgamated expanded: #include "protos/perfetto/trace/track_event/track_descriptor.gen.h"
-// gen_amalgamated expanded: #include "protos/perfetto/trace/track_event/track_descriptor.pbzero.h"
-
-#include <stdint.h>
-#include <map>
-#include <mutex>
-
-namespace perfetto {
-namespace internal {
-class TrackRegistry;
-}
-
-// Track events are recorded on a timeline track, which maintains the relative
-// time ordering of all events on that track. Each thread has its own default
-// track (ThreadTrack), which is by default where all track events are written.
-// Thread tracks are grouped under their hosting process (ProcessTrack).
-
-// Events which aren't strictly scoped to a thread or a process, or don't
-// correspond to synchronous code execution on a thread can use a custom
-// track (Track, ThreadTrack or ProcessTrack). A Track object can also
-// optionally be parented to a thread or a process.
-//
-// A track is represented by a uuid, which must be unique across the entire
-// recorded trace.
-//
-// For example, to record an event that begins and ends on different threads,
-// use a matching id to tie the begin and end events together:
-//
-//   TRACE_EVENT_BEGIN("category", "AsyncEvent", perfetto::Track(8086));
-//   ...
-//   TRACE_EVENT_END("category", perfetto::Track(8086));
-//
-// Tracks can also be annotated with metadata:
-//
-//   auto desc = track.Serialize();
-//   desc.set_name("MyTrack");
-//   perfetto::TrackEvent::SetTrackDescriptor(track, desc);
-//
-// Threads and processes can also be named in a similar way, e.g.:
-//
-//   auto desc = perfetto::ProcessTrack::Current().Serialize();
-//   desc.mutable_process()->set_process_name("MyProcess");
-//   perfetto::TrackEvent::SetTrackDescriptor(
-//       perfetto::ProcessTrack::Current(), desc);
-//
-// The metadata remains valid between tracing sessions. To free up data for a
-// track, call EraseTrackDescriptor:
-//
-//   perfetto::TrackEvent::EraseTrackDescriptor(track);
-//
-struct PERFETTO_EXPORT Track {
-  const uint64_t uuid;
-  const uint64_t parent_uuid;
-  constexpr Track() : uuid(0), parent_uuid(0) {}
-
-  // Construct a track with identifier |id|, optionally parented under |parent|.
-  // If no parent is specified, the track's parent is the current process's
-  // track.
-  //
-  // To minimize the chances for accidental id collisions across processes, the
-  // track's effective uuid is generated by xorring |id| with a random,
-  // per-process cookie.
-  explicit constexpr Track(uint64_t id, Track parent = MakeProcessTrack())
-      : uuid(id ^ parent.uuid), parent_uuid(parent.uuid) {}
-
-  explicit operator bool() const { return uuid; }
-  void Serialize(protos::pbzero::TrackDescriptor*) const;
-  protos::gen::TrackDescriptor Serialize() const;
-
-  // Construct a global track with identifier |id|.
-  //
-  // Beware: the globally unique |id| should be chosen carefully to avoid
-  // accidental clashes with track identifiers emitted by other producers.
-  static Track Global(uint64_t id) { return Track(id, Track()); }
-
-  // Construct a track using |ptr| as identifier.
-  static Track FromPointer(const void* ptr, Track parent = MakeProcessTrack()) {
-    // Using pointers as global TrackIds isn't supported as pointers are
-    // per-proccess and the same pointer value can be used in different
-    // processes.
-    PERFETTO_DCHECK(parent.uuid != Track().uuid);
-
-    return Track(static_cast<uint64_t>(reinterpret_cast<uintptr_t>(ptr)),
-                 parent);
-  }
-
- protected:
-  constexpr Track(uint64_t uuid_, uint64_t parent_uuid_)
-      : uuid(uuid_), parent_uuid(parent_uuid_) {}
-
-  static Track MakeThreadTrack(base::PlatformThreadId tid) {
-    // If tid were 0 here (which is an invalid tid), we would create a thread
-    // track with a uuid that conflicts with the corresponding ProcessTrack.
-    PERFETTO_DCHECK(tid != 0);
-    return Track(static_cast<uint64_t>(tid), MakeProcessTrack());
-  }
-
-  static Track MakeProcessTrack() { return Track(process_uuid, Track()); }
-
-  static constexpr inline uint64_t CompileTimeHash(const char* string) {
-    return internal::CompileTimeHash()
-        .Update(string, static_cast<size_t>(base::StrEnd(string) - string))
-        .digest();
-  }
-
- private:
-  friend class internal::TrackRegistry;
-  static uint64_t process_uuid;
-};
-
-// A process track represents events that describe the state of the entire
-// application (e.g., counter events). Currently a ProcessTrack can only
-// represent the current process.
-struct PERFETTO_EXPORT ProcessTrack : public Track {
-  const base::PlatformProcessId pid;
-
-  static ProcessTrack Current() { return ProcessTrack(); }
-
-  void Serialize(protos::pbzero::TrackDescriptor*) const;
-  protos::gen::TrackDescriptor Serialize() const;
-
- private:
-  ProcessTrack() : Track(MakeProcessTrack()), pid(base::GetProcessId()) {}
-};
-
-// A thread track is associated with a specific thread of execution. Currently
-// only threads in the current process can be referenced.
-struct PERFETTO_EXPORT ThreadTrack : public Track {
-  const base::PlatformProcessId pid;
-  const base::PlatformThreadId tid;
-
-  static ThreadTrack Current() { return ThreadTrack(base::GetThreadId()); }
-
-  // Represents a thread in the current process.
-  static ThreadTrack ForThread(base::PlatformThreadId tid_) {
-    return ThreadTrack(tid_);
-  }
-
-  void Serialize(protos::pbzero::TrackDescriptor*) const;
-  protos::gen::TrackDescriptor Serialize() const;
-
- private:
-  explicit ThreadTrack(base::PlatformThreadId tid_)
-      : Track(MakeThreadTrack(tid_)),
-        pid(ProcessTrack::Current().pid),
-        tid(tid_) {}
-};
-
-// A track for recording counter values with the TRACE_COUNTER macro. Counter
-// tracks can optionally be given units and other metadata. See
-// /protos/perfetto/trace/track_event/counter_descriptor.proto for details.
-class CounterTrack : public Track {
-  // A random value mixed into counter track uuids to avoid collisions with
-  // other types of tracks.
-  static constexpr uint64_t kCounterMagic = 0xb1a4a67d7970839eul;
-
- public:
-  using Unit = perfetto::protos::pbzero::CounterDescriptor::Unit;
-
-  // |name| must be a string with static lifetime.
-  constexpr explicit CounterTrack(const char* name,
-                                  Track parent = MakeProcessTrack())
-      : Track(CompileTimeHash(name) ^ kCounterMagic, parent),
-        name_(name),
-        category_(nullptr) {}
-
-  // |unit_name| is a free-form description of the unit used by this counter. It
-  // must have static lifetime.
-  constexpr CounterTrack(const char* name,
-                         const char* unit_name,
-                         Track parent = MakeProcessTrack())
-      : Track(CompileTimeHash(name) ^ kCounterMagic, parent),
-        name_(name),
-        category_(nullptr),
-        unit_name_(unit_name) {}
-
-  constexpr CounterTrack(const char* name,
-                         Unit unit,
-                         Track parent = MakeProcessTrack())
-      : Track(CompileTimeHash(name) ^ kCounterMagic, parent),
-        name_(name),
-        category_(nullptr),
-        unit_(unit) {}
-
-  static constexpr CounterTrack Global(const char* name,
-                                       const char* unit_name) {
-    return CounterTrack(name, unit_name, Track());
-  }
-
-  static constexpr CounterTrack Global(const char* name, Unit unit) {
-    return CounterTrack(name, unit, Track());
-  }
-
-  static constexpr CounterTrack Global(const char* name) {
-    return Global(name, nullptr);
-  }
-
-  constexpr CounterTrack set_unit(Unit unit) const {
-    return CounterTrack(uuid, parent_uuid, name_, category_, unit, unit_name_,
-                        unit_multiplier_, is_incremental_);
-  }
-
-  constexpr CounterTrack set_unit_name(const char* unit_name) const {
-    return CounterTrack(uuid, parent_uuid, name_, category_, unit_, unit_name,
-                        unit_multiplier_, is_incremental_);
-  }
-
-  constexpr CounterTrack set_unit_multiplier(int64_t unit_multiplier) const {
-    return CounterTrack(uuid, parent_uuid, name_, category_, unit_, unit_name_,
-                        unit_multiplier, is_incremental_);
-  }
-
-  constexpr CounterTrack set_category(const char* category) const {
-    return CounterTrack(uuid, parent_uuid, name_, category, unit_, unit_name_,
-                        unit_multiplier_, is_incremental_);
-  }
-
-  void Serialize(protos::pbzero::TrackDescriptor*) const;
-  protos::gen::TrackDescriptor Serialize() const;
-
- private:
-  constexpr CounterTrack(uint64_t uuid_,
-                         uint64_t parent_uuid_,
-                         const char* name,
-                         const char* category,
-                         Unit unit,
-                         const char* unit_name,
-                         int64_t unit_multiplier,
-                         bool is_incremental)
-      : Track(uuid_, parent_uuid_),
-        name_(name),
-        category_(category),
-        unit_(unit),
-        unit_name_(unit_name),
-        unit_multiplier_(unit_multiplier),
-        is_incremental_(is_incremental) {}
-
-  // TODO(skyostil): Expose incremental counters once we decide how to manage
-  // their incremental state.
-  constexpr CounterTrack set_is_incremental(bool is_incremental = true) const {
-    return CounterTrack(uuid, parent_uuid, name_, category_, unit_, unit_name_,
-                        unit_multiplier_, is_incremental);
-  }
-
-  const char* const name_;
-  const char* const category_;
-  Unit unit_ = perfetto::protos::pbzero::CounterDescriptor::UNIT_UNSPECIFIED;
-  const char* const unit_name_ = nullptr;
-  int64_t unit_multiplier_ = 1;
-  bool is_incremental_ = false;
-};
-
-namespace internal {
-
-// Keeps a map of uuids to serialized track descriptors and provides a
-// thread-safe way to read and write them. Each trace writer keeps a TLS set of
-// the tracks it has seen (see TrackEventIncrementalState). In the common case,
-// this registry is not consulted (and no locks are taken). However when a new
-// track is seen, this registry is used to write either 1) the default
-// descriptor for that track (see *Track::Serialize) or 2) a serialized
-// descriptor stored in the registry which may have additional metadata (e.g.,
-// track name).
-// TODO(eseckler): Remove PERFETTO_EXPORT once Chromium no longer calls
-// TrackRegistry::InitializeInstance() directly.
-class PERFETTO_EXPORT TrackRegistry {
- public:
-  using SerializedTrackDescriptor = std::string;
-
-  TrackRegistry();
-  ~TrackRegistry();
-
-  static void InitializeInstance();
-  static TrackRegistry* Get() { return instance_; }
-
-  void EraseTrack(Track);
-
-  // Store metadata for |track| in the registry. |fill_function| is called
-  // synchronously to record additional properties for the track.
-  template <typename TrackType>
-  void UpdateTrack(
-      const TrackType& track,
-      std::function<void(protos::pbzero::TrackDescriptor*)> fill_function) {
-    UpdateTrackImpl(track, [&](protos::pbzero::TrackDescriptor* desc) {
-      track.Serialize(desc);
-      fill_function(desc);
-    });
-  }
-
-  // This variant lets the user supply a serialized track descriptor directly.
-  void UpdateTrack(Track, const std::string& serialized_desc);
-
-  // If |track| exists in the registry, write out the serialized track
-  // descriptor for it into |packet|. Otherwise just the ephemeral track object
-  // is serialized without any additional metadata.
-  template <typename TrackType>
-  void SerializeTrack(
-      const TrackType& track,
-      protozero::MessageHandle<protos::pbzero::TracePacket> packet) {
-    // If the track has extra metadata (recorded with UpdateTrack), it will be
-    // found in the registry. To minimize the time the lock is held, make a copy
-    // of the data held in the registry and write it outside the lock.
-    std::string desc_copy;
-    {
-      std::lock_guard<std::mutex> lock(mutex_);
-      const auto& it = tracks_.find(track.uuid);
-      if (it != tracks_.end()) {
-        desc_copy = it->second;
-        PERFETTO_DCHECK(!desc_copy.empty());
-      }
-    }
-    if (!desc_copy.empty()) {
-      WriteTrackDescriptor(std::move(desc_copy), std::move(packet));
-    } else {
-      // Otherwise we just write the basic descriptor for this type of track
-      // (e.g., just uuid, no name).
-      track.Serialize(packet->set_track_descriptor());
-    }
-  }
-
-  static void WriteTrackDescriptor(
-      const SerializedTrackDescriptor& desc,
-      protozero::MessageHandle<protos::pbzero::TracePacket> packet);
-
- private:
-  void UpdateTrackImpl(
-      Track,
-      std::function<void(protos::pbzero::TrackDescriptor*)> fill_function);
-
-  std::mutex mutex_;
-  std::map<uint64_t /* uuid */, SerializedTrackDescriptor> tracks_;
-
-  static TrackRegistry* instance_;
-};
-
-}  // namespace internal
-}  // namespace perfetto
-
-#endif  // INCLUDE_PERFETTO_TRACING_TRACK_H_
-// gen_amalgamated begin header: gen/protos/perfetto/common/builtin_clock.pbzero.h
-// Autogenerated by the ProtoZero compiler plugin. DO NOT EDIT.
-
-#ifndef PERFETTO_PROTOS_PROTOS_PERFETTO_COMMON_BUILTIN_CLOCK_PROTO_H_
-#define PERFETTO_PROTOS_PROTOS_PERFETTO_COMMON_BUILTIN_CLOCK_PROTO_H_
-
-#include <stddef.h>
-#include <stdint.h>
-
-// gen_amalgamated expanded: #include "perfetto/protozero/field_writer.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/message.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/packed_repeated_fields.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/proto_decoder.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/proto_utils.h"
-
-namespace perfetto {
-namespace protos {
-namespace pbzero {
-
-
-enum BuiltinClock : int32_t {
-  BUILTIN_CLOCK_UNKNOWN = 0,
-  BUILTIN_CLOCK_REALTIME = 1,
-  BUILTIN_CLOCK_REALTIME_COARSE = 2,
-  BUILTIN_CLOCK_MONOTONIC = 3,
-  BUILTIN_CLOCK_MONOTONIC_COARSE = 4,
-  BUILTIN_CLOCK_MONOTONIC_RAW = 5,
-  BUILTIN_CLOCK_BOOTTIME = 6,
-  BUILTIN_CLOCK_MAX_ID = 63,
-};
-
-const BuiltinClock BuiltinClock_MIN = BUILTIN_CLOCK_UNKNOWN;
-const BuiltinClock BuiltinClock_MAX = BUILTIN_CLOCK_MAX_ID;
-
-} // Namespace.
-} // Namespace.
-} // Namespace.
-#endif  // Include guard.
-// gen_amalgamated begin header: gen/protos/perfetto/trace/interned_data/interned_data.pbzero.h
-// Autogenerated by the ProtoZero compiler plugin. DO NOT EDIT.
-
-#ifndef PERFETTO_PROTOS_PROTOS_PERFETTO_TRACE_INTERNED_DATA_INTERNED_DATA_PROTO_H_
-#define PERFETTO_PROTOS_PROTOS_PERFETTO_TRACE_INTERNED_DATA_INTERNED_DATA_PROTO_H_
-
-#include <stddef.h>
-#include <stdint.h>
-
-// gen_amalgamated expanded: #include "perfetto/protozero/field_writer.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/message.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/packed_repeated_fields.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/proto_decoder.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/proto_utils.h"
-
-namespace perfetto {
-namespace protos {
-namespace pbzero {
-
-class Callstack;
-class DebugAnnotationName;
-class EventCategory;
-class EventName;
-class Frame;
-class HistogramName;
-class InternedGpuRenderStageSpecification;
-class InternedGraphicsContext;
-class InternedString;
-class LogMessageBody;
-class Mapping;
-class ProfiledFrameSymbols;
-class SourceLocation;
-
-class InternedData_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/26, /*HAS_NONPACKED_REPEATED_FIELDS=*/true> {
- public:
-  InternedData_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit InternedData_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit InternedData_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_event_categories() const { return at<1>().valid(); }
-  ::protozero::RepeatedFieldIterator<::protozero::ConstBytes> event_categories() const { return GetRepeated<::protozero::ConstBytes>(1); }
-  bool has_event_names() const { return at<2>().valid(); }
-  ::protozero::RepeatedFieldIterator<::protozero::ConstBytes> event_names() const { return GetRepeated<::protozero::ConstBytes>(2); }
-  bool has_debug_annotation_names() const { return at<3>().valid(); }
-  ::protozero::RepeatedFieldIterator<::protozero::ConstBytes> debug_annotation_names() const { return GetRepeated<::protozero::ConstBytes>(3); }
-  bool has_source_locations() const { return at<4>().valid(); }
-  ::protozero::RepeatedFieldIterator<::protozero::ConstBytes> source_locations() const { return GetRepeated<::protozero::ConstBytes>(4); }
-  bool has_log_message_body() const { return at<20>().valid(); }
-  ::protozero::RepeatedFieldIterator<::protozero::ConstBytes> log_message_body() const { return GetRepeated<::protozero::ConstBytes>(20); }
-  bool has_histogram_names() const { return at<25>().valid(); }
-  ::protozero::RepeatedFieldIterator<::protozero::ConstBytes> histogram_names() const { return GetRepeated<::protozero::ConstBytes>(25); }
-  bool has_build_ids() const { return at<16>().valid(); }
-  ::protozero::RepeatedFieldIterator<::protozero::ConstBytes> build_ids() const { return GetRepeated<::protozero::ConstBytes>(16); }
-  bool has_mapping_paths() const { return at<17>().valid(); }
-  ::protozero::RepeatedFieldIterator<::protozero::ConstBytes> mapping_paths() const { return GetRepeated<::protozero::ConstBytes>(17); }
-  bool has_source_paths() const { return at<18>().valid(); }
-  ::protozero::RepeatedFieldIterator<::protozero::ConstBytes> source_paths() const { return GetRepeated<::protozero::ConstBytes>(18); }
-  bool has_function_names() const { return at<5>().valid(); }
-  ::protozero::RepeatedFieldIterator<::protozero::ConstBytes> function_names() const { return GetRepeated<::protozero::ConstBytes>(5); }
-  bool has_profiled_frame_symbols() const { return at<21>().valid(); }
-  ::protozero::RepeatedFieldIterator<::protozero::ConstBytes> profiled_frame_symbols() const { return GetRepeated<::protozero::ConstBytes>(21); }
-  bool has_mappings() const { return at<19>().valid(); }
-  ::protozero::RepeatedFieldIterator<::protozero::ConstBytes> mappings() const { return GetRepeated<::protozero::ConstBytes>(19); }
-  bool has_frames() const { return at<6>().valid(); }
-  ::protozero::RepeatedFieldIterator<::protozero::ConstBytes> frames() const { return GetRepeated<::protozero::ConstBytes>(6); }
-  bool has_callstacks() const { return at<7>().valid(); }
-  ::protozero::RepeatedFieldIterator<::protozero::ConstBytes> callstacks() const { return GetRepeated<::protozero::ConstBytes>(7); }
-  bool has_vulkan_memory_keys() const { return at<22>().valid(); }
-  ::protozero::RepeatedFieldIterator<::protozero::ConstBytes> vulkan_memory_keys() const { return GetRepeated<::protozero::ConstBytes>(22); }
-  bool has_graphics_contexts() const { return at<23>().valid(); }
-  ::protozero::RepeatedFieldIterator<::protozero::ConstBytes> graphics_contexts() const { return GetRepeated<::protozero::ConstBytes>(23); }
-  bool has_gpu_specifications() const { return at<24>().valid(); }
-  ::protozero::RepeatedFieldIterator<::protozero::ConstBytes> gpu_specifications() const { return GetRepeated<::protozero::ConstBytes>(24); }
-  bool has_kernel_symbols() const { return at<26>().valid(); }
-  ::protozero::RepeatedFieldIterator<::protozero::ConstBytes> kernel_symbols() const { return GetRepeated<::protozero::ConstBytes>(26); }
-};
-
-class InternedData : public ::protozero::Message {
- public:
-  using Decoder = InternedData_Decoder;
-  enum : int32_t {
-    kEventCategoriesFieldNumber = 1,
-    kEventNamesFieldNumber = 2,
-    kDebugAnnotationNamesFieldNumber = 3,
-    kSourceLocationsFieldNumber = 4,
-    kLogMessageBodyFieldNumber = 20,
-    kHistogramNamesFieldNumber = 25,
-    kBuildIdsFieldNumber = 16,
-    kMappingPathsFieldNumber = 17,
-    kSourcePathsFieldNumber = 18,
-    kFunctionNamesFieldNumber = 5,
-    kProfiledFrameSymbolsFieldNumber = 21,
-    kMappingsFieldNumber = 19,
-    kFramesFieldNumber = 6,
-    kCallstacksFieldNumber = 7,
-    kVulkanMemoryKeysFieldNumber = 22,
-    kGraphicsContextsFieldNumber = 23,
-    kGpuSpecificationsFieldNumber = 24,
-    kKernelSymbolsFieldNumber = 26,
-  };
-
-  using FieldMetadata_EventCategories =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kRepeatedNotPacked,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      EventCategory,
-      InternedData>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_EventCategories kEventCategories() { return {}; }
-  template <typename T = EventCategory> T* add_event_categories() {
-    return BeginNestedMessage<T>(1);
-  }
-
-
-  using FieldMetadata_EventNames =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kRepeatedNotPacked,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      EventName,
-      InternedData>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_EventNames kEventNames() { return {}; }
-  template <typename T = EventName> T* add_event_names() {
-    return BeginNestedMessage<T>(2);
-  }
-
-
-  using FieldMetadata_DebugAnnotationNames =
-    ::protozero::proto_utils::FieldMetadata<
-      3,
-      ::protozero::proto_utils::RepetitionType::kRepeatedNotPacked,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      DebugAnnotationName,
-      InternedData>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_DebugAnnotationNames kDebugAnnotationNames() { return {}; }
-  template <typename T = DebugAnnotationName> T* add_debug_annotation_names() {
-    return BeginNestedMessage<T>(3);
-  }
-
-
-  using FieldMetadata_SourceLocations =
-    ::protozero::proto_utils::FieldMetadata<
-      4,
-      ::protozero::proto_utils::RepetitionType::kRepeatedNotPacked,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      SourceLocation,
-      InternedData>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_SourceLocations kSourceLocations() { return {}; }
-  template <typename T = SourceLocation> T* add_source_locations() {
-    return BeginNestedMessage<T>(4);
-  }
-
-
-  using FieldMetadata_LogMessageBody =
-    ::protozero::proto_utils::FieldMetadata<
-      20,
-      ::protozero::proto_utils::RepetitionType::kRepeatedNotPacked,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      LogMessageBody,
-      InternedData>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_LogMessageBody kLogMessageBody() { return {}; }
-  template <typename T = LogMessageBody> T* add_log_message_body() {
-    return BeginNestedMessage<T>(20);
-  }
-
-
-  using FieldMetadata_HistogramNames =
-    ::protozero::proto_utils::FieldMetadata<
-      25,
-      ::protozero::proto_utils::RepetitionType::kRepeatedNotPacked,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      HistogramName,
-      InternedData>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_HistogramNames kHistogramNames() { return {}; }
-  template <typename T = HistogramName> T* add_histogram_names() {
-    return BeginNestedMessage<T>(25);
-  }
-
-
-  using FieldMetadata_BuildIds =
-    ::protozero::proto_utils::FieldMetadata<
-      16,
-      ::protozero::proto_utils::RepetitionType::kRepeatedNotPacked,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      InternedString,
-      InternedData>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_BuildIds kBuildIds() { return {}; }
-  template <typename T = InternedString> T* add_build_ids() {
-    return BeginNestedMessage<T>(16);
-  }
-
-
-  using FieldMetadata_MappingPaths =
-    ::protozero::proto_utils::FieldMetadata<
-      17,
-      ::protozero::proto_utils::RepetitionType::kRepeatedNotPacked,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      InternedString,
-      InternedData>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_MappingPaths kMappingPaths() { return {}; }
-  template <typename T = InternedString> T* add_mapping_paths() {
-    return BeginNestedMessage<T>(17);
-  }
-
-
-  using FieldMetadata_SourcePaths =
-    ::protozero::proto_utils::FieldMetadata<
-      18,
-      ::protozero::proto_utils::RepetitionType::kRepeatedNotPacked,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      InternedString,
-      InternedData>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_SourcePaths kSourcePaths() { return {}; }
-  template <typename T = InternedString> T* add_source_paths() {
-    return BeginNestedMessage<T>(18);
-  }
-
-
-  using FieldMetadata_FunctionNames =
-    ::protozero::proto_utils::FieldMetadata<
-      5,
-      ::protozero::proto_utils::RepetitionType::kRepeatedNotPacked,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      InternedString,
-      InternedData>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_FunctionNames kFunctionNames() { return {}; }
-  template <typename T = InternedString> T* add_function_names() {
-    return BeginNestedMessage<T>(5);
-  }
-
-
-  using FieldMetadata_ProfiledFrameSymbols =
-    ::protozero::proto_utils::FieldMetadata<
-      21,
-      ::protozero::proto_utils::RepetitionType::kRepeatedNotPacked,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      ProfiledFrameSymbols,
-      InternedData>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_ProfiledFrameSymbols kProfiledFrameSymbols() { return {}; }
-  template <typename T = ProfiledFrameSymbols> T* add_profiled_frame_symbols() {
-    return BeginNestedMessage<T>(21);
-  }
-
-
-  using FieldMetadata_Mappings =
-    ::protozero::proto_utils::FieldMetadata<
-      19,
-      ::protozero::proto_utils::RepetitionType::kRepeatedNotPacked,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      Mapping,
-      InternedData>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Mappings kMappings() { return {}; }
-  template <typename T = Mapping> T* add_mappings() {
-    return BeginNestedMessage<T>(19);
-  }
-
-
-  using FieldMetadata_Frames =
-    ::protozero::proto_utils::FieldMetadata<
-      6,
-      ::protozero::proto_utils::RepetitionType::kRepeatedNotPacked,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      Frame,
-      InternedData>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Frames kFrames() { return {}; }
-  template <typename T = Frame> T* add_frames() {
-    return BeginNestedMessage<T>(6);
-  }
-
-
-  using FieldMetadata_Callstacks =
-    ::protozero::proto_utils::FieldMetadata<
-      7,
-      ::protozero::proto_utils::RepetitionType::kRepeatedNotPacked,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      Callstack,
-      InternedData>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Callstacks kCallstacks() { return {}; }
-  template <typename T = Callstack> T* add_callstacks() {
-    return BeginNestedMessage<T>(7);
-  }
-
-
-  using FieldMetadata_VulkanMemoryKeys =
-    ::protozero::proto_utils::FieldMetadata<
-      22,
-      ::protozero::proto_utils::RepetitionType::kRepeatedNotPacked,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      InternedString,
-      InternedData>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_VulkanMemoryKeys kVulkanMemoryKeys() { return {}; }
-  template <typename T = InternedString> T* add_vulkan_memory_keys() {
-    return BeginNestedMessage<T>(22);
-  }
-
-
-  using FieldMetadata_GraphicsContexts =
-    ::protozero::proto_utils::FieldMetadata<
-      23,
-      ::protozero::proto_utils::RepetitionType::kRepeatedNotPacked,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      InternedGraphicsContext,
-      InternedData>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_GraphicsContexts kGraphicsContexts() { return {}; }
-  template <typename T = InternedGraphicsContext> T* add_graphics_contexts() {
-    return BeginNestedMessage<T>(23);
-  }
-
-
-  using FieldMetadata_GpuSpecifications =
-    ::protozero::proto_utils::FieldMetadata<
-      24,
-      ::protozero::proto_utils::RepetitionType::kRepeatedNotPacked,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      InternedGpuRenderStageSpecification,
-      InternedData>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_GpuSpecifications kGpuSpecifications() { return {}; }
-  template <typename T = InternedGpuRenderStageSpecification> T* add_gpu_specifications() {
-    return BeginNestedMessage<T>(24);
-  }
-
-
-  using FieldMetadata_KernelSymbols =
-    ::protozero::proto_utils::FieldMetadata<
-      26,
-      ::protozero::proto_utils::RepetitionType::kRepeatedNotPacked,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      InternedString,
-      InternedData>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_KernelSymbols kKernelSymbols() { return {}; }
-  template <typename T = InternedString> T* add_kernel_symbols() {
-    return BeginNestedMessage<T>(26);
-  }
-
-};
-
-} // Namespace.
-} // Namespace.
-} // Namespace.
-#endif  // Include guard.
-/*
- * Copyright (C) 2019 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef INCLUDE_PERFETTO_TRACING_INTERNAL_TRACK_EVENT_INTERNAL_H_
-#define INCLUDE_PERFETTO_TRACING_INTERNAL_TRACK_EVENT_INTERNAL_H_
-
-// gen_amalgamated expanded: #include "perfetto/base/flat_set.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/scattered_heap_buffer.h"
-// gen_amalgamated expanded: #include "perfetto/tracing/core/forward_decls.h"
-// gen_amalgamated expanded: #include "perfetto/tracing/data_source.h"
-// gen_amalgamated expanded: #include "perfetto/tracing/debug_annotation.h"
-// gen_amalgamated expanded: #include "perfetto/tracing/trace_writer_base.h"
-// gen_amalgamated expanded: #include "perfetto/tracing/traced_value.h"
-// gen_amalgamated expanded: #include "perfetto/tracing/track.h"
-// gen_amalgamated expanded: #include "protos/perfetto/common/builtin_clock.pbzero.h"
-// gen_amalgamated expanded: #include "protos/perfetto/trace/interned_data/interned_data.pbzero.h"
-// gen_amalgamated expanded: #include "protos/perfetto/trace/track_event/track_event.pbzero.h"
-
-#include <unordered_map>
-
-namespace perfetto {
-class EventContext;
-class TrackEventSessionObserver;
-struct Category;
-namespace protos {
-namespace gen {
-class TrackEventConfig;
-}  // namespace gen
-namespace pbzero {
-class DebugAnnotation;
-}  // namespace pbzero
-}  // namespace protos
-
-// A callback interface for observing track event tracing sessions starting and
-// stopping. See TrackEvent::{Add,Remove}SessionObserver. Note that all methods
-// will be called on an internal Perfetto thread.
-class PERFETTO_EXPORT TrackEventSessionObserver {
- public:
-  virtual ~TrackEventSessionObserver();
-  // Called when a track event tracing session is configured. Note tracing isn't
-  // active yet, so track events emitted here won't be recorded. See
-  // DataSourceBase::OnSetup.
-  virtual void OnSetup(const DataSourceBase::SetupArgs&);
-  // Called when a track event tracing session is started. It is possible to
-  // emit track events from this callback.
-  virtual void OnStart(const DataSourceBase::StartArgs&);
-  // Called when a track event tracing session is stopped. It is still possible
-  // to emit track events from this callback.
-  virtual void OnStop(const DataSourceBase::StopArgs&);
-};
-
-namespace internal {
-class TrackEventCategoryRegistry;
-
-class PERFETTO_EXPORT BaseTrackEventInternedDataIndex {
- public:
-  virtual ~BaseTrackEventInternedDataIndex();
-
-#if PERFETTO_DCHECK_IS_ON()
-  const char* type_id_ = nullptr;
-  const void* add_function_ptr_ = nullptr;
-#endif  // PERFETTO_DCHECK_IS_ON()
-};
-
-struct TrackEventIncrementalState {
-  static constexpr size_t kMaxInternedDataFields = 32;
-
-  bool was_cleared = true;
-
-  // A heap-allocated message for storing newly seen interned data while we are
-  // in the middle of writing a track event. When a track event wants to write
-  // new interned data into the trace, it is first serialized into this message
-  // and then flushed to the real trace in EventContext when the packet ends.
-  // The message is cached here as a part of incremental state so that we can
-  // reuse the underlying buffer allocation for subsequently written interned
-  // data.
-  protozero::HeapBuffered<protos::pbzero::InternedData>
-      serialized_interned_data;
-
-  // In-memory indices for looking up interned data ids.
-  // For each intern-able field (up to a max of 32) we keep a dictionary of
-  // field-value -> interning-key. Depending on the type we either keep the full
-  // value or a hash of it (See track_event_interned_data_index.h)
-  using InternedDataIndex =
-      std::pair</* interned_data.proto field number */ size_t,
-                std::unique_ptr<BaseTrackEventInternedDataIndex>>;
-  std::array<InternedDataIndex, kMaxInternedDataFields> interned_data_indices =
-      {};
-
-  // Track uuids for which we have written descriptors into the trace. If a
-  // trace event uses a track which is not in this set, we'll write out a
-  // descriptor for it.
-  base::FlatSet<uint64_t> seen_tracks;
-
-  // Dynamically registered category names that have been encountered during
-  // this tracing session. The value in the map indicates whether the category
-  // is enabled or disabled.
-  std::unordered_map<std::string, bool> dynamic_categories;
-};
-
-// The backend portion of the track event trace point implemention. Outlined to
-// a separate .cc file so it can be shared by different track event category
-// namespaces.
-class PERFETTO_EXPORT TrackEventInternal {
- public:
-  static bool Initialize(
-      const TrackEventCategoryRegistry&,
-      bool (*register_data_source)(const DataSourceDescriptor&));
-
-  static bool AddSessionObserver(TrackEventSessionObserver*);
-  static void RemoveSessionObserver(TrackEventSessionObserver*);
-
-  static void EnableTracing(const TrackEventCategoryRegistry& registry,
-                            const protos::gen::TrackEventConfig& config,
-                            const DataSourceBase::SetupArgs&);
-  static void OnStart(const DataSourceBase::StartArgs&);
-  static void DisableTracing(const TrackEventCategoryRegistry& registry,
-                             const DataSourceBase::StopArgs&);
-  static bool IsCategoryEnabled(const TrackEventCategoryRegistry& registry,
-                                const protos::gen::TrackEventConfig& config,
-                                const Category& category);
-
-  static perfetto::EventContext WriteEvent(
-      TraceWriterBase*,
-      TrackEventIncrementalState*,
-      const Category* category,
-      const char* name,
-      perfetto::protos::pbzero::TrackEvent::Type,
-      uint64_t timestamp = GetTimeNs());
-
-  static void ResetIncrementalState(TraceWriterBase*, uint64_t timestamp);
-
-  template <typename T>
-  static void AddDebugAnnotation(perfetto::EventContext* event_ctx,
-                                 const char* name,
-                                 T&& value) {
-    auto annotation = AddDebugAnnotation(event_ctx, name);
-    WriteIntoTracedValue(internal::CreateTracedValueFromProto(annotation),
-                         std::forward<T>(value));
-  }
-
-  // If the given track hasn't been seen by the trace writer yet, write a
-  // descriptor for it into the trace. Doesn't take a lock unless the track
-  // descriptor is new.
-  template <typename TrackType>
-  static void WriteTrackDescriptorIfNeeded(
-      const TrackType& track,
-      TraceWriterBase* trace_writer,
-      TrackEventIncrementalState* incr_state) {
-    auto it_and_inserted = incr_state->seen_tracks.insert(track.uuid);
-    if (PERFETTO_LIKELY(!it_and_inserted.second))
-      return;
-    WriteTrackDescriptor(track, trace_writer);
-  }
-
-  // Unconditionally write a track descriptor into the trace.
-  template <typename TrackType>
-  static void WriteTrackDescriptor(const TrackType& track,
-                                   TraceWriterBase* trace_writer) {
-    TrackRegistry::Get()->SerializeTrack(
-        track, NewTracePacket(trace_writer, GetTimeNs()));
-  }
-
-  // Get the current time in nanoseconds in the trace clock timebase.
-  static uint64_t GetTimeNs();
-
-  // Get the clock used by GetTimeNs().
-  static constexpr protos::pbzero::BuiltinClock GetClockId() {
-#if !PERFETTO_BUILDFLAG(PERFETTO_OS_APPLE) && \
-    !PERFETTO_BUILDFLAG(PERFETTO_OS_WIN)
-    return protos::pbzero::BUILTIN_CLOCK_BOOTTIME;
-#else
-    return protos::pbzero::BUILTIN_CLOCK_MONOTONIC;
-#endif
-  }
-
-  static int GetSessionCount();
-
-  // Represents the default track for the calling thread.
-  static const Track kDefaultTrack;
-
- private:
-  static protozero::MessageHandle<protos::pbzero::TracePacket> NewTracePacket(
-      TraceWriterBase*,
-      uint64_t timestamp,
-      uint32_t seq_flags =
-          protos::pbzero::TracePacket::SEQ_NEEDS_INCREMENTAL_STATE);
-  static protos::pbzero::DebugAnnotation* AddDebugAnnotation(
-      perfetto::EventContext*,
-      const char* name);
-
-  static std::atomic<int> session_count_;
-};
-
-}  // namespace internal
-}  // namespace perfetto
-
-#endif  // INCLUDE_PERFETTO_TRACING_INTERNAL_TRACK_EVENT_INTERNAL_H_
-// gen_amalgamated begin header: include/perfetto/tracing/traced_proto.h
-/*
- * Copyright (C) 2021 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef INCLUDE_PERFETTO_TRACING_TRACED_PROTO_H_
-#define INCLUDE_PERFETTO_TRACING_TRACED_PROTO_H_
-
-// gen_amalgamated expanded: #include "perfetto/base/template_util.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/field_writer.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/proto_utils.h"
-
-namespace perfetto {
-class EventContext;
-
-// A Wrapper around a protozero message to allow C++ classes to specify how it
-// should be serialised into the trace:
-//
-// class Foo {
-//  public:
-//   void WriteIntoTrace(perfetto::TracedProto<pbzero::Foo> message) {
-//     message->set_int_field(int_field_);
-//   }
-// };
-//
-// This class also exposes EventContext, e.g. to enable data interning.
-//
-// NOTE: the functionality below is not ready yet.
-// TODO(altimin): Make the interop below possible.
-// TracedProto also provides a seamless integration with writing untyped
-// values via TracedValue / TracedDictionary / TracedArray:
-//
-// - TracedValue can be converted to a TracedProto, either by calling
-//   TracedValue::WriteProto<T>() or implicitly.
-// - If a proto message has a repeating DebugAnnotation debug_annotations
-//   field, it can be filled using the TracedDictionary obtained from
-//   TracedProto::WriteDebugAnnotations.
-template <typename MessageType>
-class TracedProto {
- public:
-  TracedProto(const TracedProto&) = delete;
-  TracedProto& operator=(const TracedProto&) = delete;
-  TracedProto& operator=(TracedProto&&) = delete;
-  TracedProto(TracedProto&&) = default;
-  ~TracedProto() = default;
-
-  MessageType* operator->() const { return message_; }
-
-  MessageType* message() { return message_; }
-
-  EventContext& context() const { return context_; }
-
- private:
-  friend class EventContext;
-
-  TracedProto(MessageType* message, EventContext& context)
-      : message_(message), context_(context) {}
-
-  MessageType* const message_;
-  EventContext& context_;
-};
-
-namespace internal {
-
-// TypedProtoWriter takes the protozero message (TracedProto<MessageType>),
-// field description (FieldMetadata) and value and writes the given value
-// into the given field of the given protozero message.
-//
-// This is primarily used for inline writing of typed messages:
-// TRACE_EVENT(..., pbzero::Message:kField, value);
-//
-// Ideally we would use a function here and not a struct, but passing template
-// arguments directly to the function (e.g. foo<void>()) isn't supported until
-// C++20, so we have to use a helper struct here.
-template <typename FieldMetadata>
-struct TypedProtoWriter {
- private:
-  using ProtoSchemaType = protozero::proto_utils::ProtoSchemaType;
-  using RepetitionType = protozero::proto_utils::RepetitionType;
-
-  static_assert(FieldMetadata::kRepetitionType !=
-                    RepetitionType::kRepeatedPacked,
-                "writing packed fields isn't supported yet");
-
- public:
-  // Implementation note: typename Check=void is used to ensure that SFINAE
-  // kicks in and the methods which do not match FieldMetadata do not fail
-  // to compile. std::is_same<Check,void> prevents early evaluation of the
-  // first enable_if_t argument.
-
-  // Simple non-repeated field.
-  template <typename Proto, typename ValueType, typename Check = void>
-  static typename base::enable_if_t<
-      FieldMetadata::kProtoFieldType != ProtoSchemaType::kMessage &&
-      FieldMetadata::kRepetitionType == RepetitionType::kNotRepeated &&
-      std::is_same<Check, void>::value>
-  Write(TracedProto<Proto> context, ValueType&& value) {
-    protozero::internal::FieldWriter<FieldMetadata::kProtoFieldType>::Append(
-        *context.message(), FieldMetadata::kFieldId, value);
-  }
-
-  // Simple repeated non-packed field.
-  template <typename Proto, typename ValueType, typename Check = void>
-  static typename base::enable_if_t<
-      FieldMetadata::kProtoFieldType != ProtoSchemaType::kMessage &&
-      FieldMetadata::kRepetitionType == RepetitionType::kRepeatedNotPacked &&
-      std::is_same<Check, void>::value>
-  Write(TracedProto<Proto> context, ValueType&& value) {
-    for (auto&& item : value) {
-      protozero::internal::FieldWriter<FieldMetadata::kProtoFieldType>::Append(
-          *context.message(), FieldMetadata::kFieldId, item);
-    }
-  }
-
-  // Nested non-repeated field.
-  template <typename Proto, typename ValueType, typename Check = void>
-  static typename base::enable_if_t<
-      FieldMetadata::kProtoFieldType == ProtoSchemaType::kMessage &&
-      FieldMetadata::kRepetitionType == RepetitionType::kNotRepeated &&
-      std::is_same<Check, void>::value>
-  Write(TracedProto<Proto> context, ValueType&& value) {
-    // TODO(altimin): support TraceFormatTraits here.
-    value.WriteIntoTrace(
-        context.context().Wrap(context.message()
-                                   ->template BeginNestedMessage<
-                                       typename FieldMetadata::cpp_field_type>(
-                                       FieldMetadata::kFieldId)));
-  }
-
-  // Nested repeated non-packed field.
-  template <typename Proto, typename ValueType, typename Check = void>
-  static typename base::enable_if_t<
-      FieldMetadata::kProtoFieldType == ProtoSchemaType::kMessage &&
-      FieldMetadata::kRepetitionType == RepetitionType::kRepeatedNotPacked &&
-      std::is_same<Check, void>::value>
-  Write(TracedProto<Proto> context, ValueType&& value) {
-    // TODO(altimin): support TraceFormatTraits here.
-    for (auto&& item : value) {
-      item.WriteIntoTrace(context.context().Wrap(
-          context.message()
-              ->template BeginNestedMessage<
-                  typename FieldMetadata::cpp_field_type>(
-                  FieldMetadata::kFieldId)));
-    }
-  }
-};
-
-}  // namespace internal
-
-template <typename MessageType, typename FieldMetadataType, typename ValueType>
-void WriteIntoTracedProto(
-    TracedProto<MessageType> message,
-    protozero::proto_utils::internal::FieldMetadataHelper<FieldMetadataType>,
-    ValueType&& value) {
-  static_assert(
-      std::is_base_of<protozero::proto_utils::FieldMetadataBase,
-                      FieldMetadataType>::value,
-      "Field name should be a protozero::internal::FieldMetadata<...>");
-  static_assert(
-      std::is_base_of<MessageType,
-                      typename FieldMetadataType::message_type>::value,
-      "Field's parent type should match the context.");
-
-  internal::TypedProtoWriter<FieldMetadataType>::Write(
-      std::move(message), std::forward<ValueType>(value));
-}
-
-}  // namespace perfetto
-
-#endif  // INCLUDE_PERFETTO_TRACING_TRACED_PROTO_H_
-/*
- * Copyright (C) 2019 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef INCLUDE_PERFETTO_TRACING_EVENT_CONTEXT_H_
-#define INCLUDE_PERFETTO_TRACING_EVENT_CONTEXT_H_
-
-// gen_amalgamated expanded: #include "perfetto/protozero/message_handle.h"
-// gen_amalgamated expanded: #include "perfetto/tracing/internal/track_event_internal.h"
-// gen_amalgamated expanded: #include "perfetto/tracing/traced_proto.h"
-// gen_amalgamated expanded: #include "protos/perfetto/trace/trace_packet.pbzero.h"
-
-namespace perfetto {
-namespace internal {
-class TrackEventInternal;
-}
-
-// Allows adding custom arguments into track events. Example:
-//
-//   TRACE_EVENT_BEGIN("category", "Title",
-//                     [](perfetto::EventContext ctx) {
-//                       auto* dbg = ctx.event()->add_debug_annotations();
-//                       dbg->set_name("name");
-//                       dbg->set_int_value(1234);
-//                     });
-//
-class PERFETTO_EXPORT EventContext {
- public:
-  EventContext(EventContext&&) = default;
-
-  // For Chromium during the transition phase to the client library.
-  // TODO(eseckler): Remove once Chromium has switched to client lib entirely.
-  explicit EventContext(
-      protos::pbzero::TrackEvent* event,
-      internal::TrackEventIncrementalState* incremental_state = nullptr)
-      : event_(event), incremental_state_(incremental_state) {}
-
-  ~EventContext();
-
-  // Get a TrackEvent message to write typed arguments to.
-  //
-  // event() is a template method to allow callers to specify a subclass of
-  // TrackEvent instead. Those subclasses correspond to TrackEvent message with
-  // application-specific extensions. More information in
-  // design-docs/extensions.md.
-  template <typename EventType = protos::pbzero::TrackEvent>
-  EventType* event() const {
-    // As the method does downcasting, we check that a target subclass does
-    // not add new fields.
-    static_assert(
-        sizeof(EventType) == sizeof(protos::pbzero::TrackEvent),
-        "Event type must be binary-compatible with protos::pbzero::TrackEvent");
-    return static_cast<EventType*>(event_);
-  }
-
-  // Convert a raw pointer to protozero message to TracedProto which captures
-  // the reference to this EventContext.
-  template <typename MessageType>
-  TracedProto<MessageType> Wrap(MessageType* message) {
-    static_assert(std::is_base_of<protozero::Message, MessageType>::value,
-                  "TracedProto can be used only with protozero messages");
-
-    return TracedProto<MessageType>(message, *this);
-  }
-
- private:
-  template <typename, size_t, typename, typename>
-  friend class TrackEventInternedDataIndex;
-  friend class internal::TrackEventInternal;
-
-  using TracePacketHandle =
-      ::protozero::MessageHandle<protos::pbzero::TracePacket>;
-
-  EventContext(TracePacketHandle, internal::TrackEventIncrementalState*);
-  EventContext(const EventContext&) = delete;
-
-  TracePacketHandle trace_packet_;
-  protos::pbzero::TrackEvent* event_;
-  internal::TrackEventIncrementalState* incremental_state_;
-};
-
-}  // namespace perfetto
-
-#endif  // INCLUDE_PERFETTO_TRACING_EVENT_CONTEXT_H_
-// gen_amalgamated begin header: include/perfetto/tracing/internal/write_track_event_args.h
-/*
- * Copyright (C) 2021 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef INCLUDE_PERFETTO_TRACING_INTERNAL_WRITE_TRACK_EVENT_ARGS_H_
-#define INCLUDE_PERFETTO_TRACING_INTERNAL_WRITE_TRACK_EVENT_ARGS_H_
-
-// gen_amalgamated expanded: #include "perfetto/base/compiler.h"
-// gen_amalgamated expanded: #include "perfetto/tracing/event_context.h"
-// gen_amalgamated expanded: #include "perfetto/tracing/traced_proto.h"
-
-namespace perfetto {
-namespace internal {
-
-// Helper function handling filling provided |EventContext| from the provided
-// arguments, which include:
-// - Lambda functions,
-// - Debug annotations.
-//
-// TRACE_EVENT parameters which do not translate to directly writing something
-// into TrackEvent proto (like tracks and timestamps are _not_ covered by this
-// function).
-template <typename... Args, typename TypeCheck = void>
-void WriteTrackEventArgs(EventContext event_context, Args&&... args);
-
-// No arguments means that we don't have to write anything.
-template <>
-PERFETTO_ALWAYS_INLINE inline void WriteTrackEventArgs(EventContext) {}
-
-namespace {
-
-// A template helper for determining whether a type can be used as a track event
-// lambda, i.e., it has the signature "void(EventContext)". This is achieved by
-// checking that we can pass an EventContext value (the inner declval) into a T
-// instance (the outer declval). If this is a valid expression, the result
-// evaluates to sizeof(0), i.e., true.
-// TODO(skyostil): Replace this with std::is_convertible<std::function<...>>
-// once we have C++14.
-template <typename T>
-static constexpr bool IsValidTraceLambdaImpl(
-    typename std::enable_if<static_cast<bool>(
-        sizeof(std::declval<T>()(std::declval<EventContext>()), 0))>::type* =
-        nullptr) {
-  return true;
-}
-
-template <typename T>
-static constexpr bool IsValidTraceLambdaImpl(...) {
-  return false;
-}
-
-template <typename T>
-static constexpr bool IsValidTraceLambda() {
-  return IsValidTraceLambdaImpl<T>(nullptr);
-}
-
-}  // namespace
-
-// Write a lambda.
-// TODO(altimin): At the moment lambda takes EventContext, which is
-// non-copyable, so only one lambda is supported and it has to be the last
-// argument.
-template <typename ArgumentFunction,
-          typename ArgFunctionCheck = typename std::enable_if<
-              IsValidTraceLambda<ArgumentFunction>()>::type>
-PERFETTO_ALWAYS_INLINE void WriteTrackEventArgs(EventContext event_ctx,
-                                                ArgumentFunction arg_function) {
-  arg_function(std::move(event_ctx));
-}
-
-// Write one debug annotation and recursively write the rest of the arguments.
-template <typename ArgValue, typename... Args>
-PERFETTO_ALWAYS_INLINE void WriteTrackEventArgs(EventContext event_ctx,
-                                                const char* arg_name,
-                                                ArgValue&& arg_value,
-                                                Args&&... args) {
-  TrackEventInternal::AddDebugAnnotation(&event_ctx, arg_name,
-                                         std::forward<ArgValue>(arg_value));
-  WriteTrackEventArgs(std::move(event_ctx), std::forward<Args>(args)...);
-}
-
-// Write one typed message and recursively write the rest of the arguments.
-template <typename FieldMetadataType,
-          typename ArgValue,
-          typename... Args,
-          typename Check = base::enable_if_t<
-              std::is_base_of<protozero::proto_utils::FieldMetadataBase,
-                              FieldMetadataType>::value>>
-PERFETTO_ALWAYS_INLINE void WriteTrackEventArgs(
-    EventContext event_ctx,
-    protozero::proto_utils::internal::FieldMetadataHelper<FieldMetadataType>
-        field_name,
-    ArgValue&& arg_value,
-    Args&&... args) {
-  static_assert(
-      std::is_base_of<protos::pbzero::TrackEvent,
-                      typename FieldMetadataType::message_type>::value,
-      "Only fields of TrackEvent (and TrackEvent's extensions) can "
-      "be passed to TRACE_EVENT");
-  WriteIntoTracedProto(
-      event_ctx.Wrap(
-          event_ctx.event<typename FieldMetadataType::message_type>()),
-      field_name, std::forward<ArgValue>(arg_value));
-  WriteTrackEventArgs(std::move(event_ctx), std::forward<Args>(args)...);
-}
-
-}  // namespace internal
-}  // namespace perfetto
-
-#endif  // INCLUDE_PERFETTO_TRACING_INTERNAL_WRITE_TRACK_EVENT_ARGS_H_
-// gen_amalgamated begin header: include/perfetto/tracing/track_event_category_registry.h
-/*
- * Copyright (C) 2019 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef INCLUDE_PERFETTO_TRACING_TRACK_EVENT_CATEGORY_REGISTRY_H_
-#define INCLUDE_PERFETTO_TRACING_TRACK_EVENT_CATEGORY_REGISTRY_H_
-
-// gen_amalgamated expanded: #include "perfetto/tracing/data_source.h"
-
-#include <stddef.h>
-
-#include <atomic>
-#include <utility>
-
-namespace perfetto {
-class DynamicCategory;
-
-// A compile-time representation of a track event category. See
-// PERFETTO_DEFINE_CATEGORIES for registering your own categories.
-struct PERFETTO_EXPORT Category {
-  using Tags = std::array<const char*, 4>;
-
-  const char* const name = nullptr;
-  const char* const description = nullptr;
-  const Tags tags = {};
-
-  constexpr Category(const Category&) = default;
-  constexpr explicit Category(const char* name_)
-      : name(CheckIsValidCategory(name_)),
-        name_sizes_(ComputeNameSizes(name_)) {}
-
-  constexpr Category SetDescription(const char* description_) const {
-    return Category(name, description_, tags, name_sizes_);
-  }
-
-  template <typename... Args>
-  constexpr Category SetTags(Args&&... args) const {
-    return Category(name, description, {std::forward<Args>(args)...},
-                    name_sizes_);
-  }
-
-  // A comma separated list of multiple categories to be used in a single trace
-  // point.
-  static constexpr Category Group(const char* names) {
-    return Category(names, AllowGroup{});
-  }
-
-  // Used for parsing dynamic category groups. Note that |name| and
-  // |DynamicCategory| must outlive the returned object because the category
-  // name isn't copied.
-  static Category FromDynamicCategory(const char* name);
-  static Category FromDynamicCategory(const DynamicCategory&);
-
-  constexpr bool IsGroup() const { return GetNameSize(1) > 0; }
-
-  // Returns the number of character in the category name. Not valid for
-  // category groups.
-  size_t name_size() const {
-    PERFETTO_DCHECK(!IsGroup());
-    return GetNameSize(0);
-  }
-
-  // Iterates over all the members of this category group, or just the name of
-  // the category itself if this isn't a category group. Return false from
-  // |callback| to stop iteration.
-  template <typename T>
-  void ForEachGroupMember(T callback) const {
-    const char* name_ptr = name;
-    size_t i = 0;
-    while (size_t name_size = GetNameSize(i++)) {
-      if (!callback(name_ptr, name_size))
-        break;
-      name_ptr += name_size + 1;
-    }
-  }
-
- private:
-  static constexpr size_t kMaxGroupSize = 4;
-  using NameSizes = std::array<uint8_t, kMaxGroupSize>;
-
-  constexpr Category(const char* name_,
-                     const char* description_,
-                     Tags tags_,
-                     NameSizes name_sizes)
-      : name(name_),
-        description(description_),
-        tags(tags_),
-        name_sizes_(name_sizes) {}
-
-  enum AllowGroup {};
-  constexpr Category(const char* name_, AllowGroup)
-      : name(CheckIsValidCategoryGroup(name_)),
-        name_sizes_(ComputeNameSizes(name_)) {}
-
-  constexpr size_t GetNameSize(size_t i) const {
-    return i < name_sizes_.size() ? name_sizes_[i] : 0;
-  }
-
-  static constexpr NameSizes ComputeNameSizes(const char* s) {
-    static_assert(kMaxGroupSize == 4, "Unexpected maximum category group size");
-    return NameSizes{{static_cast<uint8_t>(GetNthNameSize(0, s, s)),
-                      static_cast<uint8_t>(GetNthNameSize(1, s, s)),
-                      static_cast<uint8_t>(GetNthNameSize(2, s, s)),
-                      static_cast<uint8_t>(GetNthNameSize(3, s, s))}};
-  }
-
-  static constexpr ptrdiff_t GetNthNameSize(int n,
-                                            const char* start,
-                                            const char* end,
-                                            int counter = 0) {
-    return (!*end || *end == ',')
-               ? ((!*end || counter == n)
-                      ? (counter == n ? end - start : 0)
-                      : GetNthNameSize(n, end + 1, end + 1, counter + 1))
-               : GetNthNameSize(n, start, end + 1, counter);
-  }
-
-  static constexpr const char* CheckIsValidCategory(const char* n) {
-    // We just replace invalid input with a nullptr here; it will trigger a
-    // static assert in TrackEventCategoryRegistry::ValidateCategories().
-    return GetNthNameSize(1, n, n) ? nullptr : n;
-  }
-
-  static constexpr const char* CheckIsValidCategoryGroup(const char* n) {
-    // Same as above: replace invalid input with nullptr.
-    return !GetNthNameSize(1, n, n) || GetNthNameSize(kMaxGroupSize, n, n)
-               ? nullptr
-               : n;
-  }
-
-  // An array of lengths of the different names associated with this category.
-  // If this category doesn't represent a group of multiple categories, only the
-  // first element is non-zero.
-  const NameSizes name_sizes_ = {};
-};
-
-// Dynamically constructed category names should marked as such through this
-// container type to make it less likely for trace points to accidentally start
-// using dynamic categories. Events with dynamic categories will always be
-// slightly more expensive than regular events, so use them sparingly.
-class PERFETTO_EXPORT DynamicCategory final {
- public:
-  explicit DynamicCategory(const std::string& name_) : name(name_) {}
-  explicit DynamicCategory(const char* name_) : name(name_) {}
-  DynamicCategory() {}
-  ~DynamicCategory() = default;
-
-  const std::string name;
-};
-
-namespace internal {
-
-constexpr const char* NullCategory(const char*) {
-  return nullptr;
-}
-
-perfetto::DynamicCategory NullCategory(const perfetto::DynamicCategory&);
-
-constexpr bool StringMatchesPrefix(const char* str, const char* prefix) {
-  return !*str ? !*prefix
-               : !*prefix ? true
-                          : *str != *prefix
-                                ? false
-                                : StringMatchesPrefix(str + 1, prefix + 1);
-}
-
-constexpr bool IsStringInPrefixList(const char*) {
-  return false;
-}
-
-template <typename... Args>
-constexpr bool IsStringInPrefixList(const char* str,
-                                    const char* prefix,
-                                    Args... args) {
-  return StringMatchesPrefix(str, prefix) ||
-         IsStringInPrefixList(str, std::forward<Args>(args)...);
-}
-
-// Holds all the registered categories for one category namespace. See
-// PERFETTO_DEFINE_CATEGORIES for building the registry.
-class PERFETTO_EXPORT TrackEventCategoryRegistry {
- public:
-  constexpr TrackEventCategoryRegistry(size_t category_count,
-                                       const Category* categories,
-                                       std::atomic<uint8_t>* state_storage)
-      : categories_(categories),
-        category_count_(category_count),
-        state_storage_(state_storage) {
-    static_assert(
-        sizeof(state_storage[0].load()) * 8 >= kMaxDataSourceInstances,
-        "The category state must have enough bits for all possible data source "
-        "instances");
-  }
-
-  size_t category_count() const { return category_count_; }
-
-  // Returns a category based on its index.
-  const Category* GetCategory(size_t index) const {
-    PERFETTO_DCHECK(index < category_count_);
-    return &categories_[index];
-  }
-
-  // Turn tracing on or off for the given category in a track event data source
-  // instance.
-  void EnableCategoryForInstance(size_t category_index,
-                                 uint32_t instance_index) const;
-  void DisableCategoryForInstance(size_t category_index,
-                                  uint32_t instance_index) const;
-
-  constexpr std::atomic<uint8_t>* GetCategoryState(
-      size_t category_index) const {
-    return &state_storage_[category_index];
-  }
-
-  // --------------------------------------------------------------------------
-  // Trace point support
-  // --------------------------------------------------------------------------
-  //
-  // (The following methods are used by the track event trace point
-  // implementation and typically don't need to be called by other code.)
-
-  // At compile time, turn a category name into an index into the registry.
-  // Returns kInvalidCategoryIndex if the category was not found, or
-  // kDynamicCategoryIndex if |is_dynamic| is true or a DynamicCategory was
-  // passed in.
-  static constexpr size_t kInvalidCategoryIndex = static_cast<size_t>(-1);
-  static constexpr size_t kDynamicCategoryIndex = static_cast<size_t>(-2);
-  constexpr size_t Find(const char* name, bool is_dynamic) const {
-    return CheckIsValidCategoryIndex(FindImpl(name, is_dynamic));
-  }
-
-  constexpr size_t Find(const DynamicCategory&, bool) const {
-    return kDynamicCategoryIndex;
-  }
-
-  constexpr bool ValidateCategories(size_t index = 0) const {
-    return (index == category_count_)
-               ? true
-               : IsValidCategoryName(categories_[index].name)
-                     ? ValidateCategories(index + 1)
-                     : false;
-  }
-
- private:
-  // TODO(skyostil): Make the compile-time routines nicer with C++14.
-  constexpr size_t FindImpl(const char* name,
-                            bool is_dynamic,
-                            size_t index = 0) const {
-    return is_dynamic ? kDynamicCategoryIndex
-                      : (index == category_count_)
-                            ? kInvalidCategoryIndex
-                            : StringEq(categories_[index].name, name)
-                                  ? index
-                                  : FindImpl(name, false, index + 1);
-  }
-
-  // A compile time helper for checking that a category index is valid.
-  static constexpr size_t CheckIsValidCategoryIndex(size_t index) {
-    // Relies on PERFETTO_CHECK() (and the surrounding lambda) being a
-    // non-constexpr function, which will fail the build if the given |index| is
-    // invalid. The funny formatting here is so that clang shows the comment
-    // below as part of the error message.
-    // clang-format off
-    return index != kInvalidCategoryIndex ? index : \
-        /* Invalid category -- add it to PERFETTO_DEFINE_CATEGORIES(). */ [] {
-        PERFETTO_CHECK(
-            false &&
-            "A track event used an unknown category. Please add it to "
-            "PERFETTO_DEFINE_CATEGORIES().");
-        return kInvalidCategoryIndex;
-      }();
-    // clang-format on
-  }
-
-  static constexpr bool IsValidCategoryName(const char* name) {
-    return (!name || *name == '\"' || *name == '*' || *name == ' ')
-               ? false
-               : *name ? IsValidCategoryName(name + 1) : true;
-  }
-
-  static constexpr bool StringEq(const char* a, const char* b) {
-    return *a != *b ? false
-                    : (!*a || !*b) ? (*a == *b) : StringEq(a + 1, b + 1);
-  }
-
-  const Category* const categories_;
-  const size_t category_count_;
-  std::atomic<uint8_t>* const state_storage_;
-};
-
-}  // namespace internal
-}  // namespace perfetto
-
-#endif  // INCLUDE_PERFETTO_TRACING_TRACK_EVENT_CATEGORY_REGISTRY_H_
-// gen_amalgamated begin header: gen/protos/perfetto/config/track_event/track_event_config.gen.h
-// DO NOT EDIT. Autogenerated by Perfetto cppgen_plugin
-#ifndef PERFETTO_PROTOS_PROTOS_PERFETTO_CONFIG_TRACK_EVENT_TRACK_EVENT_CONFIG_PROTO_CPP_H_
-#define PERFETTO_PROTOS_PROTOS_PERFETTO_CONFIG_TRACK_EVENT_TRACK_EVENT_CONFIG_PROTO_CPP_H_
-
-#include <stdint.h>
-#include <bitset>
-#include <vector>
-#include <string>
-#include <type_traits>
-
-// gen_amalgamated expanded: #include "perfetto/protozero/cpp_message_obj.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/copyable_ptr.h"
-// gen_amalgamated expanded: #include "perfetto/base/export.h"
-
-namespace perfetto {
-namespace protos {
-namespace gen {
-class TrackEventConfig;
-}  // namespace perfetto
-}  // namespace protos
-}  // namespace gen
-
-namespace protozero {
-class Message;
-}  // namespace protozero
-
-namespace perfetto {
-namespace protos {
-namespace gen {
-
-class PERFETTO_EXPORT TrackEventConfig : public ::protozero::CppMessageObj {
- public:
-  enum FieldNumbers {
-    kDisabledCategoriesFieldNumber = 1,
-    kEnabledCategoriesFieldNumber = 2,
-    kDisabledTagsFieldNumber = 3,
-    kEnabledTagsFieldNumber = 4,
-  };
-
-  TrackEventConfig();
-  ~TrackEventConfig() override;
-  TrackEventConfig(TrackEventConfig&&) noexcept;
-  TrackEventConfig& operator=(TrackEventConfig&&);
-  TrackEventConfig(const TrackEventConfig&);
-  TrackEventConfig& operator=(const TrackEventConfig&);
-  bool operator==(const TrackEventConfig&) const;
-  bool operator!=(const TrackEventConfig& other) const { return !(*this == other); }
-
-  bool ParseFromArray(const void*, size_t) override;
-  std::string SerializeAsString() const override;
-  std::vector<uint8_t> SerializeAsArray() const override;
-  void Serialize(::protozero::Message*) const;
-
-  const std::vector<std::string>& disabled_categories() const { return disabled_categories_; }
-  std::vector<std::string>* mutable_disabled_categories() { return &disabled_categories_; }
-  int disabled_categories_size() const { return static_cast<int>(disabled_categories_.size()); }
-  void clear_disabled_categories() { disabled_categories_.clear(); }
-  void add_disabled_categories(std::string value) { disabled_categories_.emplace_back(value); }
-  std::string* add_disabled_categories() { disabled_categories_.emplace_back(); return &disabled_categories_.back(); }
-
-  const std::vector<std::string>& enabled_categories() const { return enabled_categories_; }
-  std::vector<std::string>* mutable_enabled_categories() { return &enabled_categories_; }
-  int enabled_categories_size() const { return static_cast<int>(enabled_categories_.size()); }
-  void clear_enabled_categories() { enabled_categories_.clear(); }
-  void add_enabled_categories(std::string value) { enabled_categories_.emplace_back(value); }
-  std::string* add_enabled_categories() { enabled_categories_.emplace_back(); return &enabled_categories_.back(); }
-
-  const std::vector<std::string>& disabled_tags() const { return disabled_tags_; }
-  std::vector<std::string>* mutable_disabled_tags() { return &disabled_tags_; }
-  int disabled_tags_size() const { return static_cast<int>(disabled_tags_.size()); }
-  void clear_disabled_tags() { disabled_tags_.clear(); }
-  void add_disabled_tags(std::string value) { disabled_tags_.emplace_back(value); }
-  std::string* add_disabled_tags() { disabled_tags_.emplace_back(); return &disabled_tags_.back(); }
-
-  const std::vector<std::string>& enabled_tags() const { return enabled_tags_; }
-  std::vector<std::string>* mutable_enabled_tags() { return &enabled_tags_; }
-  int enabled_tags_size() const { return static_cast<int>(enabled_tags_.size()); }
-  void clear_enabled_tags() { enabled_tags_.clear(); }
-  void add_enabled_tags(std::string value) { enabled_tags_.emplace_back(value); }
-  std::string* add_enabled_tags() { enabled_tags_.emplace_back(); return &enabled_tags_.back(); }
-
- private:
-  std::vector<std::string> disabled_categories_;
-  std::vector<std::string> enabled_categories_;
-  std::vector<std::string> disabled_tags_;
-  std::vector<std::string> enabled_tags_;
-
-  // Allows to preserve unknown protobuf fields for compatibility
-  // with future versions of .proto files.
-  std::string unknown_fields_;
-
-  std::bitset<5> _has_field_{};
-};
-
-}  // namespace perfetto
-}  // namespace protos
-}  // namespace gen
-
-#endif  // PERFETTO_PROTOS_PROTOS_PERFETTO_CONFIG_TRACK_EVENT_TRACK_EVENT_CONFIG_PROTO_CPP_H_
-/*
- * Copyright (C) 2019 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef INCLUDE_PERFETTO_TRACING_INTERNAL_TRACK_EVENT_DATA_SOURCE_H_
-#define INCLUDE_PERFETTO_TRACING_INTERNAL_TRACK_EVENT_DATA_SOURCE_H_
-
-// gen_amalgamated expanded: #include "perfetto/base/compiler.h"
-// gen_amalgamated expanded: #include "perfetto/base/template_util.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/message_handle.h"
-// gen_amalgamated expanded: #include "perfetto/tracing/core/data_source_config.h"
-// gen_amalgamated expanded: #include "perfetto/tracing/data_source.h"
-// gen_amalgamated expanded: #include "perfetto/tracing/event_context.h"
-// gen_amalgamated expanded: #include "perfetto/tracing/internal/track_event_internal.h"
-// gen_amalgamated expanded: #include "perfetto/tracing/internal/write_track_event_args.h"
-// gen_amalgamated expanded: #include "perfetto/tracing/track.h"
-// gen_amalgamated expanded: #include "perfetto/tracing/track_event_category_registry.h"
-// gen_amalgamated expanded: #include "protos/perfetto/common/builtin_clock.pbzero.h"
-// gen_amalgamated expanded: #include "protos/perfetto/config/track_event/track_event_config.gen.h"
-// gen_amalgamated expanded: #include "protos/perfetto/trace/track_event/track_event.pbzero.h"
-
-#include <type_traits>
-
-namespace perfetto {
-
-struct TraceTimestamp {
-  protos::pbzero::BuiltinClock clock_id;
-  uint64_t nanoseconds;
-};
-
-// This template provides a way to convert an abstract timestamp into the trace
-// clock timebase in nanoseconds. By specialising this template and defining
-// static ConvertTimestampToTraceTimeNs function in it the user can register
-// additional timestamp types. The return value should specify the clock used by
-// the timestamp as well as its value in nanoseconds.
-//
-// The users should see the specialisation for uint64_t below as an example.
-// Note that the specialisation should be defined in perfetto namespace.
-template <typename T>
-struct TraceTimestampTraits;
-
-// A pass-through implementation for raw uint64_t nanosecond timestamps.
-template <>
-struct TraceTimestampTraits<uint64_t> {
-  static inline TraceTimestamp ConvertTimestampToTraceTimeNs(
-      const uint64_t& timestamp) {
-    return {internal::TrackEventInternal::GetClockId(), timestamp};
-  }
-};
-
-namespace internal {
-namespace {
-
-// Checks if |T| is a valid track.
-template <typename T>
-static constexpr bool IsValidTrack() {
-  return std::is_convertible<T, Track>::value;
-}
-
-// Checks if |T| is a valid non-counter track.
-template <typename T>
-static constexpr bool IsValidNormalTrack() {
-  return std::is_convertible<T, Track>::value &&
-         !std::is_convertible<T, CounterTrack>::value;
-}
-
-// Because the user can use arbitrary timestamp types, we can't compare against
-// any known base type here. Instead, we check that a track or a trace lambda
-// isn't being interpreted as a timestamp.
-template <typename T,
-          typename CanBeConvertedToNsCheck = decltype(
-              ::perfetto::TraceTimestampTraits<typename base::remove_cvref_t<
-                  T>>::ConvertTimestampToTraceTimeNs(std::declval<T>())),
-          typename NotTrackCheck =
-              typename std::enable_if<!IsValidNormalTrack<T>()>::type,
-          typename NotLambdaCheck =
-              typename std::enable_if<!IsValidTraceLambda<T>()>::type>
-static constexpr bool IsValidTimestamp() {
-  return true;
-}
-
-}  // namespace
-
-// Traits for dynamic categories.
-template <typename CategoryType>
-struct CategoryTraits {
-  static constexpr bool kIsDynamic = true;
-  static constexpr const Category* GetStaticCategory(
-      const TrackEventCategoryRegistry*,
-      const CategoryType&) {
-    return nullptr;
-  }
-  static size_t GetStaticIndex(const CategoryType&) {
-    PERFETTO_DCHECK(false);  // Not reached.
-    return TrackEventCategoryRegistry::kDynamicCategoryIndex;
-  }
-  static DynamicCategory GetDynamicCategory(const CategoryType& category) {
-    return DynamicCategory{category};
-  }
-};
-
-// Traits for static categories.
-template <>
-struct CategoryTraits<size_t> {
-  static constexpr bool kIsDynamic = false;
-  static const Category* GetStaticCategory(
-      const TrackEventCategoryRegistry* registry,
-      size_t category_index) {
-    return registry->GetCategory(category_index);
-  }
-  static constexpr size_t GetStaticIndex(size_t category_index) {
-    return category_index;
-  }
-  static DynamicCategory GetDynamicCategory(size_t) {
-    PERFETTO_DCHECK(false);  // Not reached.
-    return DynamicCategory();
-  }
-};
-
-struct TrackEventDataSourceTraits : public perfetto::DefaultDataSourceTraits {
-  using IncrementalStateType = TrackEventIncrementalState;
-
-  // Use a one shared TLS slot so that all track event data sources write into
-  // the same sequence and share interning dictionaries.
-  static DataSourceThreadLocalState* GetDataSourceTLS(DataSourceStaticState*,
-                                                      TracingTLS* root_tls) {
-    return &root_tls->track_event_tls;
-  }
-};
-
-// A generic track event data source which is instantiated once per track event
-// category namespace.
-template <typename DataSourceType, const TrackEventCategoryRegistry* Registry>
-class TrackEventDataSource
-    : public DataSource<DataSourceType, TrackEventDataSourceTraits> {
-  using Base = DataSource<DataSourceType, TrackEventDataSourceTraits>;
-
- public:
-  // Add or remove a session observer for this track event data source. The
-  // observer will be notified about started and stopped tracing sessions.
-  // Returns |true| if the observer was succesfully added (i.e., the maximum
-  // number of observers wasn't exceeded).
-  static bool AddSessionObserver(TrackEventSessionObserver* observer) {
-    return TrackEventInternal::AddSessionObserver(observer);
-  }
-
-  static void RemoveSessionObserver(TrackEventSessionObserver* observer) {
-    TrackEventInternal::RemoveSessionObserver(observer);
-  }
-
-  // DataSource implementation.
-  void OnSetup(const DataSourceBase::SetupArgs& args) override {
-    auto config_raw = args.config->track_event_config_raw();
-    bool ok = config_.ParseFromArray(config_raw.data(), config_raw.size());
-    PERFETTO_DCHECK(ok);
-    TrackEventInternal::EnableTracing(*Registry, config_, args);
-  }
-
-  void OnStart(const DataSourceBase::StartArgs& args) override {
-    TrackEventInternal::OnStart(args);
-  }
-
-  void OnStop(const DataSourceBase::StopArgs& args) override {
-    TrackEventInternal::DisableTracing(*Registry, args);
-  }
-
-  static void Flush() {
-    Base::template Trace([](typename Base::TraceContext ctx) { ctx.Flush(); });
-  }
-
-  // Determine if *any* tracing category is enabled.
-  static bool IsEnabled() {
-    bool enabled = false;
-    Base::template CallIfEnabled(
-        [&](uint32_t /*instances*/) { enabled = true; });
-    return enabled;
-  }
-
-  // Determine if tracing for the given static category is enabled.
-  static bool IsCategoryEnabled(size_t category_index) {
-    return Registry->GetCategoryState(category_index)
-        ->load(std::memory_order_relaxed);
-  }
-
-  // Determine if tracing for the given dynamic category is enabled.
-  static bool IsDynamicCategoryEnabled(
-      const DynamicCategory& dynamic_category) {
-    bool enabled = false;
-    Base::template Trace([&](typename Base::TraceContext ctx) {
-      enabled = IsDynamicCategoryEnabled(&ctx, dynamic_category);
-    });
-    return enabled;
-  }
-
-  // This is the inlined entrypoint for all track event trace points. It tries
-  // to be as lightweight as possible in terms of instructions and aims to
-  // compile down to an unlikely conditional jump to the actual trace writing
-  // function.
-  template <typename Callback>
-  static void CallIfCategoryEnabled(size_t category_index,
-                                    Callback callback) PERFETTO_ALWAYS_INLINE {
-    Base::template CallIfEnabled<CategoryTracePointTraits>(
-        [&callback](uint32_t instances) { callback(instances); },
-        {category_index});
-  }
-
-  // Once we've determined tracing to be enabled for this category, actually
-  // write a trace event onto this thread's default track. Outlined to avoid
-  // bloating code (mostly stack depth) at the actual trace point.
-  //
-  // The following combination of parameters is supported (in the given order):
-  // - Zero or one track,
-  // - Zero or one custom timestamp,
-  // - Arbitrary number of debug annotations.
-  // - Zero or one lambda.
-
-  // Trace point which does not take a track or timestamp.
-  template <typename CategoryType, typename... Arguments>
-  static void TraceForCategory(uint32_t instances,
-                               const CategoryType& category,
-                               const char* event_name,
-                               perfetto::protos::pbzero::TrackEvent::Type type,
-                               Arguments&&... args) PERFETTO_NO_INLINE {
-    TraceForCategoryImpl(instances, category, event_name, type,
-                         TrackEventInternal::kDefaultTrack,
-                         TrackEventInternal::GetTimeNs(),
-                         std::forward<Arguments>(args)...);
-  }
-
-  // Trace point which takes a track, but not timestamp.
-  // NOTE: Here track should be captured using universal reference (TrackType&&)
-  // instead of const TrackType& to ensure that the proper overload is selected
-  // (otherwise the compiler will fail to disambiguate between adding const& and
-  // parsing track as a part of Arguments...).
-  template <typename TrackType,
-            typename CategoryType,
-            typename... Arguments,
-            typename TrackTypeCheck = typename std::enable_if<
-                std::is_convertible<TrackType, Track>::value>::type>
-  static void TraceForCategory(uint32_t instances,
-                               const CategoryType& category,
-                               const char* event_name,
-                               perfetto::protos::pbzero::TrackEvent::Type type,
-                               TrackType&& track,
-                               Arguments&&... args) PERFETTO_NO_INLINE {
-    TraceForCategoryImpl(
-        instances, category, event_name, type, std::forward<TrackType>(track),
-        TrackEventInternal::GetTimeNs(), std::forward<Arguments>(args)...);
-  }
-
-  // Trace point which takes a timestamp, but not track.
-  template <typename CategoryType,
-            typename TimestampType = uint64_t,
-            typename... Arguments,
-            typename TimestampTypeCheck = typename std::enable_if<
-                IsValidTimestamp<TimestampType>()>::type>
-  static void TraceForCategory(uint32_t instances,
-                               const CategoryType& category,
-                               const char* event_name,
-                               perfetto::protos::pbzero::TrackEvent::Type type,
-                               TimestampType&& timestamp,
-                               Arguments&&... args) PERFETTO_NO_INLINE {
-    TraceForCategoryImpl(instances, category, event_name, type,
-                         TrackEventInternal::kDefaultTrack,
-                         std::forward<TimestampType>(timestamp),
-                         std::forward<Arguments>(args)...);
-  }
-
-  // Trace point which takes a timestamp and a track.
-  template <typename TrackType,
-            typename CategoryType,
-            typename TimestampType = uint64_t,
-            typename... Arguments,
-            typename TrackTypeCheck = typename std::enable_if<
-                std::is_convertible<TrackType, Track>::value>::type,
-            typename TimestampTypeCheck = typename std::enable_if<
-                IsValidTimestamp<TimestampType>()>::type>
-  static void TraceForCategory(uint32_t instances,
-                               const CategoryType& category,
-                               const char* event_name,
-                               perfetto::protos::pbzero::TrackEvent::Type type,
-                               TrackType&& track,
-                               TimestampType&& timestamp,
-                               Arguments&&... args) PERFETTO_NO_INLINE {
-    TraceForCategoryImpl(instances, category, event_name, type,
-                         std::forward<TrackType>(track),
-                         std::forward<TimestampType>(timestamp),
-                         std::forward<Arguments>(args)...);
-  }
-
-  // Trace point with with a counter sample.
-  template <typename CategoryType, typename ValueType>
-  static void TraceForCategory(uint32_t instances,
-                               const CategoryType& category,
-                               const char*,
-                               perfetto::protos::pbzero::TrackEvent::Type type,
-                               CounterTrack track,
-                               ValueType value) PERFETTO_ALWAYS_INLINE {
-    PERFETTO_DCHECK(type == perfetto::protos::pbzero::TrackEvent::TYPE_COUNTER);
-    TraceForCategory(instances, category, /*name=*/nullptr, type, track,
-                     TrackEventInternal::GetTimeNs(), value);
-  }
-
-  // Trace point with with a timestamp and a counter sample.
-  template <typename CategoryType,
-            typename TimestampType = uint64_t,
-            typename TimestampTypeCheck = typename std::enable_if<
-                IsValidTimestamp<TimestampType>()>::type,
-            typename ValueType>
-  static void TraceForCategory(uint32_t instances,
-                               const CategoryType& category,
-                               const char*,
-                               perfetto::protos::pbzero::TrackEvent::Type type,
-                               CounterTrack track,
-                               TimestampType timestamp,
-                               ValueType value) PERFETTO_ALWAYS_INLINE {
-    PERFETTO_DCHECK(type == perfetto::protos::pbzero::TrackEvent::TYPE_COUNTER);
-    TraceForCategoryImpl(
-        instances, category, /*name=*/nullptr, type, track, timestamp,
-        [&](EventContext event_ctx) {
-          if (std::is_integral<ValueType>::value) {
-            event_ctx.event()->set_counter_value(static_cast<int64_t>(value));
-          } else {
-            event_ctx.event()->set_double_counter_value(
-                static_cast<double>(value));
-          }
-        });
-  }
-
-  // Initialize the track event library. Should be called before tracing is
-  // enabled.
-  static bool Register() {
-    // Registration is performed out-of-line so users don't need to depend on
-    // DataSourceDescriptor C++ bindings.
-    return TrackEventInternal::Initialize(
-        *Registry,
-        [](const DataSourceDescriptor& dsd) { return Base::Register(dsd); });
-  }
-
-  // Record metadata about different types of timeline tracks. See Track.
-  static void SetTrackDescriptor(const Track& track,
-                                 const protos::gen::TrackDescriptor& desc) {
-    PERFETTO_DCHECK(track.uuid == desc.uuid());
-    TrackRegistry::Get()->UpdateTrack(track, desc.SerializeAsString());
-    Base::template Trace([&](typename Base::TraceContext ctx) {
-      TrackEventInternal::WriteTrackDescriptor(
-          track, ctx.tls_inst_->trace_writer.get());
-    });
-  }
-
-  // DEPRECATED. Only kept for backwards compatibility.
-  static void SetTrackDescriptor(
-      const Track& track,
-      std::function<void(protos::pbzero::TrackDescriptor*)> callback) {
-    SetTrackDescriptorImpl(track, std::move(callback));
-  }
-
-  // DEPRECATED. Only kept for backwards compatibility.
-  static void SetProcessDescriptor(
-      std::function<void(protos::pbzero::TrackDescriptor*)> callback,
-      const ProcessTrack& track = ProcessTrack::Current()) {
-    SetTrackDescriptorImpl(std::move(track), std::move(callback));
-  }
-
-  // DEPRECATED. Only kept for backwards compatibility.
-  static void SetThreadDescriptor(
-      std::function<void(protos::pbzero::TrackDescriptor*)> callback,
-      const ThreadTrack& track = ThreadTrack::Current()) {
-    SetTrackDescriptorImpl(std::move(track), std::move(callback));
-  }
-
-  static void EraseTrackDescriptor(const Track& track) {
-    TrackRegistry::Get()->EraseTrack(track);
-  }
-
-  // Returns the current trace timestamp in nanoseconds. Note the returned
-  // timebase may vary depending on the platform, but will always match the
-  // timestamps recorded by track events (see GetTraceClockId).
-  static uint64_t GetTraceTimeNs() { return TrackEventInternal::GetTimeNs(); }
-
-  // Returns the type of clock used by GetTraceTimeNs().
-  static constexpr protos::pbzero::BuiltinClock GetTraceClockId() {
-    return TrackEventInternal::GetClockId();
-  }
-
- private:
-  // Each category has its own enabled/disabled state, stored in the category
-  // registry.
-  struct CategoryTracePointTraits {
-    // Each trace point with a static category has an associated category index.
-    struct TracePointData {
-      size_t category_index;
-    };
-    // Called to get the enabled state bitmap of a given category.
-    // |data| is the trace point data structure given to
-    // DataSource::TraceWithInstances.
-    static constexpr std::atomic<uint8_t>* GetActiveInstances(
-        TracePointData data) {
-      return Registry->GetCategoryState(data.category_index);
-    }
-  };
-
-  template <typename CategoryType,
-            typename TrackType = Track,
-            typename TimestampType = uint64_t,
-            typename TimestampTypeCheck = typename std::enable_if<
-                IsValidTimestamp<TimestampType>()>::type,
-            typename TrackTypeCheck =
-                typename std::enable_if<IsValidTrack<TrackType>()>::type,
-            typename... Arguments>
-  static void TraceForCategoryImpl(
-      uint32_t instances,
-      const CategoryType& category,
-      const char* event_name,
-      perfetto::protos::pbzero::TrackEvent::Type type,
-      const TrackType& track,
-      const TimestampType& timestamp,
-      Arguments&&... args) PERFETTO_ALWAYS_INLINE {
-    using CatTraits = CategoryTraits<CategoryType>;
-    const Category* static_category =
-        CatTraits::GetStaticCategory(Registry, category);
-    TraceWithInstances(
-        instances, category, [&](typename Base::TraceContext ctx) {
-          // If this category is dynamic, first check whether it's enabled.
-          if (CatTraits::kIsDynamic &&
-              !IsDynamicCategoryEnabled(
-                  &ctx, CatTraits::GetDynamicCategory(category))) {
-            return;
-          }
-
-          // TODO(skyostil): Support additional clock ids.
-          TraceTimestamp trace_timestamp = ::perfetto::TraceTimestampTraits<
-              TimestampType>::ConvertTimestampToTraceTimeNs(timestamp);
-          PERFETTO_DCHECK(trace_timestamp.clock_id ==
-                          TrackEventInternal::GetClockId());
-
-          // Make sure incremental state is valid.
-          TraceWriterBase* trace_writer = ctx.tls_inst_->trace_writer.get();
-          TrackEventIncrementalState* incr_state = ctx.GetIncrementalState();
-          if (incr_state->was_cleared) {
-            incr_state->was_cleared = false;
-            TrackEventInternal::ResetIncrementalState(
-                trace_writer, trace_timestamp.nanoseconds);
-          }
-
-          // Write the track descriptor before any event on the track.
-          if (track) {
-            TrackEventInternal::WriteTrackDescriptorIfNeeded(
-                track, trace_writer, incr_state);
-          }
-
-          // Write the event itself.
-          {
-            auto event_ctx = TrackEventInternal::WriteEvent(
-                trace_writer, incr_state, static_category, event_name, type,
-                trace_timestamp.nanoseconds);
-            // Write dynamic categories (except for events that don't require
-            // categories). For counter events, the counter name (and optional
-            // category) is stored as part of the track descriptor instead being
-            // recorded with individual events.
-            if (CatTraits::kIsDynamic &&
-                type != protos::pbzero::TrackEvent::TYPE_SLICE_END &&
-                type != protos::pbzero::TrackEvent::TYPE_COUNTER) {
-              DynamicCategory dynamic_category =
-                  CatTraits::GetDynamicCategory(category);
-              Category cat = Category::FromDynamicCategory(dynamic_category);
-              cat.ForEachGroupMember(
-                  [&](const char* member_name, size_t name_size) {
-                    event_ctx.event()->add_categories(member_name, name_size);
-                    return true;
-                  });
-            }
-            if (&track != &TrackEventInternal::kDefaultTrack)
-              event_ctx.event()->set_track_uuid(track.uuid);
-            WriteTrackEventArgs(std::move(event_ctx),
-                                std::forward<Arguments>(args)...);
-          }  // event_ctx
-        });
-  }
-
-  template <typename CategoryType, typename Lambda>
-  static void TraceWithInstances(uint32_t instances,
-                                 const CategoryType& category,
-                                 Lambda lambda) PERFETTO_ALWAYS_INLINE {
-    using CatTraits = CategoryTraits<CategoryType>;
-    if (CatTraits::kIsDynamic) {
-      Base::template TraceWithInstances(instances, std::move(lambda));
-    } else {
-      Base::template TraceWithInstances<CategoryTracePointTraits>(
-          instances, std::move(lambda), {CatTraits::GetStaticIndex(category)});
-    }
-  }
-
-  // Records a track descriptor into the track descriptor registry and, if we
-  // are tracing, also mirrors the descriptor into the trace.
-  template <typename TrackType>
-  static void SetTrackDescriptorImpl(
-      const TrackType& track,
-      std::function<void(protos::pbzero::TrackDescriptor*)> callback) {
-    TrackRegistry::Get()->UpdateTrack(track, std::move(callback));
-    Base::template Trace([&](typename Base::TraceContext ctx) {
-      TrackEventInternal::WriteTrackDescriptor(
-          track, ctx.tls_inst_->trace_writer.get());
-    });
-  }
-
-  // Determines if the given dynamic category is enabled, first by checking the
-  // per-trace writer cache or by falling back to computing it based on the
-  // trace config for the given session.
-  static bool IsDynamicCategoryEnabled(
-      typename Base::TraceContext* ctx,
-      const DynamicCategory& dynamic_category) {
-    auto incr_state = ctx->GetIncrementalState();
-    auto it = incr_state->dynamic_categories.find(dynamic_category.name);
-    if (it == incr_state->dynamic_categories.end()) {
-      // We haven't seen this category before. Let's figure out if it's enabled.
-      // This requires grabbing a lock to read the session's trace config.
-      auto ds = ctx->GetDataSourceLocked();
-      Category category{Category::FromDynamicCategory(dynamic_category)};
-      bool enabled = TrackEventInternal::IsCategoryEnabled(
-          *Registry, ds->config_, category);
-      // TODO(skyostil): Cap the size of |dynamic_categories|.
-      incr_state->dynamic_categories[dynamic_category.name] = enabled;
-      return enabled;
-    }
-    return it->second;
-  }
-
-  // Config for the current tracing session.
-  protos::gen::TrackEventConfig config_;
-};
-
-}  // namespace internal
-}  // namespace perfetto
-
-#endif  // INCLUDE_PERFETTO_TRACING_INTERNAL_TRACK_EVENT_DATA_SOURCE_H_
-// gen_amalgamated begin header: include/perfetto/tracing/internal/track_event_macros.h
-/*
- * Copyright (C) 2019 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef INCLUDE_PERFETTO_TRACING_INTERNAL_TRACK_EVENT_MACROS_H_
-#define INCLUDE_PERFETTO_TRACING_INTERNAL_TRACK_EVENT_MACROS_H_
-
-// This file contains underlying macros for the trace point track event
-// implementation. Perfetto API users typically don't need to use anything here
-// directly.
-
-// gen_amalgamated expanded: #include "perfetto/base/compiler.h"
-// gen_amalgamated expanded: #include "perfetto/tracing/internal/track_event_data_source.h"
-// gen_amalgamated expanded: #include "perfetto/tracing/track_event_category_registry.h"
-
-// Ignore GCC warning about a missing argument for a variadic macro parameter.
-#if defined(__GNUC__) || defined(__clang__)
-#pragma GCC system_header
-#endif
-
-// Defines data structures for backing a category registry.
-//
-// Each category has one enabled/disabled bit per possible data source instance.
-// The bits are packed, i.e., each byte holds the state for instances. To
-// improve cache locality, the bits for each instance are stored separately from
-// the names of the categories:
-//
-//   byte 0                      byte 1
-//   (inst0, inst1, ..., inst7), (inst0, inst1, ..., inst7)
-//
-#define PERFETTO_INTERNAL_DECLARE_CATEGORIES(...)                             \
-  namespace internal {                                                        \
-  constexpr ::perfetto::Category kCategories[] = {__VA_ARGS__};               \
-  constexpr size_t kCategoryCount =                                           \
-      sizeof(kCategories) / sizeof(kCategories[0]);                           \
-  /* The per-instance enable/disable state per category */                    \
-  PERFETTO_COMPONENT_EXPORT extern std::atomic<uint8_t>                       \
-      g_category_state_storage[kCategoryCount];                               \
-  /* The category registry which mediates access to the above structures. */  \
-  /* The registry is used for two purposes: */                                \
-  /**/                                                                        \
-  /*    1) For looking up categories at build (constexpr) time. */            \
-  /*    2) For declaring the per-namespace TrackEvent data source. */         \
-  /**/                                                                        \
-  /* Because usage #1 requires a constexpr type and usage #2 requires an */   \
-  /* extern type (to avoid declaring a type based on a translation-unit */    \
-  /* variable), we need two separate copies of the registry with different */ \
-  /* storage specifiers. */                                                   \
-  /**/                                                                        \
-  /* TODO(skyostil): Unify these using a C++17 inline constexpr variable. */  \
-  constexpr ::perfetto::internal::TrackEventCategoryRegistry                  \
-      kConstExprCategoryRegistry(kCategoryCount,                              \
-                                 &kCategories[0],                             \
-                                 &g_category_state_storage[0]);               \
-  PERFETTO_COMPONENT_EXPORT extern const ::perfetto::internal::               \
-      TrackEventCategoryRegistry kCategoryRegistry;                           \
-  static_assert(kConstExprCategoryRegistry.ValidateCategories(),              \
-                "Invalid category names found");                              \
-  }  // namespace internal
-
-// In a .cc file, declares storage for each category's runtime state.
-#define PERFETTO_INTERNAL_CATEGORY_STORAGE()             \
-  namespace internal {                                   \
-  PERFETTO_COMPONENT_EXPORT std::atomic<uint8_t>         \
-      g_category_state_storage[kCategoryCount];          \
-  PERFETTO_COMPONENT_EXPORT const ::perfetto::internal:: \
-      TrackEventCategoryRegistry kCategoryRegistry(      \
-          kCategoryCount,                                \
-          &kCategories[0],                               \
-          &g_category_state_storage[0]);                 \
-  }  // namespace internal
-
-// Defines the TrackEvent data source for the current track event namespace.
-#define PERFETTO_INTERNAL_DECLARE_TRACK_EVENT_DATA_SOURCE() \
-  struct PERFETTO_COMPONENT_EXPORT TrackEvent               \
-      : public ::perfetto::internal::TrackEventDataSource<  \
-            TrackEvent, &internal::kCategoryRegistry> {}
-
-// At compile time, turns a category name represented by a static string into an
-// index into the current category registry. A build error will be generated if
-// the category hasn't been registered or added to the list of allowed dynamic
-// categories. See PERFETTO_DEFINE_CATEGORIES.
-#define PERFETTO_GET_CATEGORY_INDEX(category)                                  \
-  ::PERFETTO_TRACK_EVENT_NAMESPACE::internal::kConstExprCategoryRegistry.Find( \
-      category,                                                                \
-      ::PERFETTO_TRACK_EVENT_NAMESPACE::internal::IsDynamicCategory(category))
-
-// Generate a unique variable name with a given prefix.
-#define PERFETTO_INTERNAL_CONCAT2(a, b) a##b
-#define PERFETTO_INTERNAL_CONCAT(a, b) PERFETTO_INTERNAL_CONCAT2(a, b)
-#define PERFETTO_UID(prefix) PERFETTO_INTERNAL_CONCAT(prefix, __LINE__)
-
-// Efficiently determines whether tracing is enabled for the given category, and
-// if so, emits one trace event with the given arguments.
-#define PERFETTO_INTERNAL_TRACK_EVENT(category, ...)                           \
-  do {                                                                         \
-    namespace tns = ::PERFETTO_TRACK_EVENT_NAMESPACE;                          \
-    /* Compute the category index outside the lambda to work around a */       \
-    /* GCC 7 bug */                                                            \
-    static constexpr auto PERFETTO_UID(                                        \
-        kCatIndex_ADD_TO_PERFETTO_DEFINE_CATEGORIES_IF_FAILS_) =               \
-        PERFETTO_GET_CATEGORY_INDEX(category);                                 \
-    if (tns::internal::IsDynamicCategory(category)) {                          \
-      tns::TrackEvent::CallIfEnabled(                                          \
-          [&](uint32_t instances) PERFETTO_NO_THREAD_SAFETY_ANALYSIS {         \
-            tns::TrackEvent::TraceForCategory(instances, category,             \
-                                              ##__VA_ARGS__);                  \
-          });                                                                  \
-    } else {                                                                   \
-      tns::TrackEvent::CallIfCategoryEnabled(                                  \
-          PERFETTO_UID(kCatIndex_ADD_TO_PERFETTO_DEFINE_CATEGORIES_IF_FAILS_), \
-          [&](uint32_t instances) PERFETTO_NO_THREAD_SAFETY_ANALYSIS {         \
-            tns::TrackEvent::TraceForCategory(                                 \
-                instances,                                                     \
-                PERFETTO_UID(                                                  \
-                    kCatIndex_ADD_TO_PERFETTO_DEFINE_CATEGORIES_IF_FAILS_),    \
-                ##__VA_ARGS__);                                                \
-          });                                                                  \
-    }                                                                          \
-  } while (false)
-
-#define PERFETTO_INTERNAL_SCOPED_TRACK_EVENT(category, name, ...)             \
-  struct PERFETTO_UID(ScopedEvent) {                                          \
-    struct EventFinalizer {                                                   \
-      /* The parameter is an implementation detail. It allows the          */ \
-      /* anonymous struct to use aggregate initialization to invoke the    */ \
-      /* lambda (which emits the BEGIN event and returns an integer)       */ \
-      /* with the proper reference capture for any                         */ \
-      /* TrackEventArgumentFunction in |__VA_ARGS__|. This is required so  */ \
-      /* that the scoped event is exactly ONE line and can't escape the    */ \
-      /* scope if used in a single line if statement.                      */ \
-      EventFinalizer(...) {}                                                  \
-      ~EventFinalizer() { TRACE_EVENT_END(category); }                        \
-    } finalizer;                                                              \
-  } PERFETTO_UID(scoped_event) {                                              \
-    [&]() {                                                                   \
-      TRACE_EVENT_BEGIN(category, name, ##__VA_ARGS__);                       \
-      return 0;                                                               \
-    }()                                                                       \
-  }
-
-#define PERFETTO_INTERNAL_CATEGORY_ENABLED(category)                         \
-  (::PERFETTO_TRACK_EVENT_NAMESPACE::internal::IsDynamicCategory(category)   \
-       ? ::PERFETTO_TRACK_EVENT_NAMESPACE::TrackEvent::                      \
-             IsDynamicCategoryEnabled(::perfetto::DynamicCategory(category)) \
-       : ::PERFETTO_TRACK_EVENT_NAMESPACE::TrackEvent::IsCategoryEnabled(    \
-             PERFETTO_GET_CATEGORY_INDEX(category)))
-
-#endif  // INCLUDE_PERFETTO_TRACING_INTERNAL_TRACK_EVENT_MACROS_H_
-/*
- * Copyright (C) 2019 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef INCLUDE_PERFETTO_TRACING_TRACK_EVENT_H_
-#define INCLUDE_PERFETTO_TRACING_TRACK_EVENT_H_
-
-// gen_amalgamated expanded: #include "perfetto/base/time.h"
-// gen_amalgamated expanded: #include "perfetto/tracing/internal/track_event_data_source.h"
-// gen_amalgamated expanded: #include "perfetto/tracing/internal/track_event_internal.h"
-// gen_amalgamated expanded: #include "perfetto/tracing/internal/track_event_macros.h"
-// gen_amalgamated expanded: #include "perfetto/tracing/string_helpers.h"
-// gen_amalgamated expanded: #include "perfetto/tracing/track.h"
-// gen_amalgamated expanded: #include "perfetto/tracing/track_event_category_registry.h"
-// gen_amalgamated expanded: #include "protos/perfetto/trace/track_event/track_event.pbzero.h"
-
-#include <type_traits>
-
-// This file contains a set of macros designed for instrumenting applications
-// with track event trace points. While the underlying TrackEvent API can also
-// be used directly, doing so efficiently requires some care (e.g., to avoid
-// evaluating arguments while tracing is disabled). These types of optimizations
-// are abstracted away by the macros below.
-//
-// ================
-// Quickstart guide
-// ================
-//
-//   To add track events to your application, first define your categories in,
-//   e.g., my_tracing.h:
-//
-//       PERFETTO_DEFINE_CATEGORIES(
-//           perfetto::Category("base"),
-//           perfetto::Category("v8"),
-//           perfetto::Category("cc"));
-//
-//   Then in a single .cc file, e.g., my_tracing.cc:
-//
-//       #include "my_tracing.h"
-//       PERFETTO_TRACK_EVENT_STATIC_STORAGE();
-//
-//   Finally, register track events at startup, after which you can record
-//   events with the TRACE_EVENT macros:
-//
-//       #include "my_tracing.h"
-//
-//       int main() {
-//         perfetto::TrackEvent::Register();
-//
-//         // A basic track event with just a name.
-//         TRACE_EVENT("category", "MyEvent");
-//
-//         // A track event with (up to two) debug annotations.
-//         TRACE_EVENT("category", "MyEvent", "parameter", 42);
-//
-//         // A track event with a strongly typed parameter.
-//         TRACE_EVENT("category", "MyEvent", [](perfetto::EventContext ctx) {
-//           ctx.event()->set_foo(42);
-//           ctx.event()->set_bar(.5f);
-//         });
-//       }
-//
-//  Note that track events must be nested consistently, i.e., the following is
-//  not allowed:
-//
-//    TRACE_EVENT_BEGIN("a", "bar", ...);
-//    TRACE_EVENT_BEGIN("b", "foo", ...);
-//    TRACE_EVENT_END("a");  // "foo" must be closed before "bar".
-//    TRACE_EVENT_END("b");
-//
-// ====================
-// Implementation notes
-// ====================
-//
-// The track event library consists of the following layers and components. The
-// classes the internal namespace shouldn't be considered part of the public
-// API.
-//                    .--------------------------------.
-//               .----|  TRACE_EVENT                   |----.
-//      write   |     |   - App instrumentation point  |     |  write
-//      event   |     '--------------------------------'     |  arguments
-//              V                                            V
-//  .----------------------------------.    .-----------------------------.
-//  | TrackEvent                       |    | EventContext                |
-//  |  - Registry of event categories  |    |  - One track event instance |
-//  '----------------------------------'    '-----------------------------'
-//              |                                            |
-//              |                                            | look up
-//              | is                                         | interning ids
-//              V                                            V
-//  .----------------------------------.    .-----------------------------.
-//  | internal::TrackEventDataSource   |    | TrackEventInternedDataIndex |
-//  | - Perfetto data source           |    | - Corresponds to a field in |
-//  | - Has TrackEventIncrementalState |    |   in interned_data.proto    |
-//  '----------------------------------'    '-----------------------------'
-//              |                  |                         ^
-//              |                  |       owns (1:many)     |
-//              | write event      '-------------------------'
-//              V
-//  .----------------------------------.
-//  | internal::TrackEventInternal     |
-//  | - Outlined code to serialize     |
-//  |   one track event                |
-//  '----------------------------------'
-//
-
-// Each compilation unit can be in exactly one track event namespace,
-// allowing the overall program to use multiple track event data sources and
-// category lists if necessary. Use this macro to select the namespace for the
-// current compilation unit.
-//
-// If the program uses multiple track event namespaces, category & track event
-// registration (see quickstart above) needs to happen for both namespaces
-// separately.
-#ifndef PERFETTO_TRACK_EVENT_NAMESPACE
-#define PERFETTO_TRACK_EVENT_NAMESPACE perfetto
-#endif
-
-// Deprecated; see perfetto::Category().
-#define PERFETTO_CATEGORY(name) \
-  ::perfetto::Category { #name }
-
-// Internal helpers for determining if a given category is defined at build or
-// runtime.
-namespace PERFETTO_TRACK_EVENT_NAMESPACE {
-namespace internal {
-
-// By default no statically defined categories are dynamic, but this can be
-// overridden with PERFETTO_DEFINE_TEST_CATEGORY_PREFIXES.
-template <typename... T>
-constexpr bool IsDynamicCategory(const char*) {
-  return false;
-}
-
-// Explicitly dynamic categories are always dynamic.
-constexpr bool IsDynamicCategory(const ::perfetto::DynamicCategory&) {
-  return true;
-}
-
-}  // namespace internal
-}  // namespace PERFETTO_TRACK_EVENT_NAMESPACE
-
-// Normally all categories are defined statically at build-time (see
-// PERFETTO_DEFINE_CATEGORIES). However, some categories are only used for
-// testing, and we shouldn't publish them to the tracing service or include them
-// in a production binary. Use this macro to define a list of prefixes for these
-// types of categories. Note that trace points using these categories will be
-// slightly less efficient compared to regular trace points.
-#define PERFETTO_DEFINE_TEST_CATEGORY_PREFIXES(...)                       \
-  namespace PERFETTO_TRACK_EVENT_NAMESPACE {                              \
-  namespace internal {                                                    \
-  template <>                                                             \
-  constexpr bool IsDynamicCategory(const char* name) {                    \
-    return ::perfetto::internal::IsStringInPrefixList(name, __VA_ARGS__); \
-  }                                                                       \
-  } /* namespace internal */                                              \
-  } /* namespace PERFETTO_TRACK_EVENT_NAMESPACE */                        \
-  PERFETTO_INTERNAL_SWALLOW_SEMICOLON()
-
-// Register the set of available categories by passing a list of categories to
-// this macro: PERFETTO_CATEGORY(cat1), PERFETTO_CATEGORY(cat2), ...
-#define PERFETTO_DEFINE_CATEGORIES(...)                        \
-  namespace PERFETTO_TRACK_EVENT_NAMESPACE {                   \
-  /* The list of category names */                             \
-  PERFETTO_INTERNAL_DECLARE_CATEGORIES(__VA_ARGS__)            \
-  /* The track event data source for this set of categories */ \
-  PERFETTO_INTERNAL_DECLARE_TRACK_EVENT_DATA_SOURCE();         \
-  } /* namespace PERFETTO_TRACK_EVENT_NAMESPACE */             \
-  PERFETTO_DECLARE_DATA_SOURCE_STATIC_MEMBERS(                 \
-      PERFETTO_TRACK_EVENT_NAMESPACE::TrackEvent,              \
-      perfetto::internal::TrackEventDataSourceTraits)
-
-// Allocate storage for each category by using this macro once per track event
-// namespace.
-#define PERFETTO_TRACK_EVENT_STATIC_STORAGE()      \
-  namespace PERFETTO_TRACK_EVENT_NAMESPACE {       \
-  PERFETTO_INTERNAL_CATEGORY_STORAGE()             \
-  } /* namespace PERFETTO_TRACK_EVENT_NAMESPACE */ \
-  PERFETTO_DEFINE_DATA_SOURCE_STATIC_MEMBERS(      \
-      PERFETTO_TRACK_EVENT_NAMESPACE::TrackEvent,  \
-      perfetto::internal::TrackEventDataSourceTraits)
-
-// Ignore GCC warning about a missing argument for a variadic macro parameter.
-#if defined(__GNUC__) || defined(__clang__)
-#pragma GCC system_header
-#endif
-
-// Begin a slice under |category| with the title |name|. Both strings must be
-// static constants. The track event is only recorded if |category| is enabled
-// for a tracing session.
-//
-// The slice is thread-scoped (i.e., written to the default track of the current
-// thread) unless overridden with a custom track object (see Track).
-//
-// |name| must be a string with static lifetime (i.e., the same
-// address must not be used for a different event name in the future). If you
-// want to use a dynamically allocated name, do this:
-//
-//  TRACE_EVENT("category", nullptr, [&](perfetto::EventContext ctx) {
-//    ctx.event()->set_name(dynamic_name);
-//  });
-//
-// The following optional arguments can be passed to `TRACE_EVENT` to add extra
-// information to events:
-//
-// TRACE_EVENT("cat", "name"[, track][, timestamp]
-//                          [, "debug_name1", debug_value1]
-//                          [, "debug_name2", debug_value2]
-//                          ...
-//                          [, "debug_nameN", debug_valueN]
-//                          [, lambda]);
-//
-// Some examples of valid combinations:
-//
-// 1. A lambda for writing custom TrackEvent fields:
-//
-//   TRACE_EVENT("category", "Name", [&](perfetto::EventContext ctx) {
-//     ctx.event()->set_custom_value(...);
-//   });
-//
-// 2. A timestamp and a lambda:
-//
-//   TRACE_EVENT("category", "Name", time_in_nanoseconds,
-//       [&](perfetto::EventContext ctx) {
-//     ctx.event()->set_custom_value(...);
-//   });
-//
-//   |time_in_nanoseconds| should be an uint64_t by default. To support custom
-//   timestamp types,
-//   |perfetto::TraceTimestampTraits<T>::ConvertTimestampToTraceTimeNs|
-//   should be defined. See |ConvertTimestampToTraceTimeNs| for more details.
-//
-// 3. Arbitrary number of debug annotations:
-//
-//   TRACE_EVENT("category", "Name", "arg", value);
-//   TRACE_EVENT("category", "Name", "arg", value, "arg2", value2);
-//   TRACE_EVENT("category", "Name", "arg", value, "arg2", value2,
-//                                   "arg3", value3);
-//
-//   See |TracedValue| for recording custom types as debug annotations.
-//
-// 4. Arbitrary number of debug annotations and a lambda:
-//
-//   TRACE_EVENT("category", "Name", "arg", value,
-//       [&](perfetto::EventContext ctx) {
-//     ctx.event()->set_custom_value(...);
-//   });
-//
-// 5. An overridden track:
-//
-//   TRACE_EVENT("category", "Name", perfetto::Track(1234));
-//
-//   See |Track| for other types of tracks which may be used.
-//
-// 6. A track and a lambda:
-//
-//   TRACE_EVENT("category", "Name", perfetto::Track(1234),
-//       [&](perfetto::EventContext ctx) {
-//     ctx.event()->set_custom_value(...);
-//   });
-//
-// 7. A track and a timestamp:
-//
-//   TRACE_EVENT("category", "Name", perfetto::Track(1234),
-//       time_in_nanoseconds);
-//
-// 8. A track, a timestamp and a lambda:
-//
-//   TRACE_EVENT("category", "Name", perfetto::Track(1234),
-//       time_in_nanoseconds, [&](perfetto::EventContext ctx) {
-//     ctx.event()->set_custom_value(...);
-//   });
-//
-// 9. A track and an arbitrary number of debug annotions:
-//
-//   TRACE_EVENT("category", "Name", perfetto::Track(1234),
-//               "arg", value);
-//   TRACE_EVENT("category", "Name", perfetto::Track(1234),
-//               "arg", value, "arg2", value2);
-//
-#define TRACE_EVENT_BEGIN(category, name, ...)               \
-  PERFETTO_INTERNAL_TRACK_EVENT(                             \
-      category, ::perfetto::internal::GetStaticString(name), \
-      ::perfetto::protos::pbzero::TrackEvent::TYPE_SLICE_BEGIN, ##__VA_ARGS__)
-
-// End a slice under |category|.
-#define TRACE_EVENT_END(category, ...) \
-  PERFETTO_INTERNAL_TRACK_EVENT(       \
-      category, /*name=*/nullptr,      \
-      ::perfetto::protos::pbzero::TrackEvent::TYPE_SLICE_END, ##__VA_ARGS__)
-
-// Begin a slice which gets automatically closed when going out of scope.
-#define TRACE_EVENT(category, name, ...) \
-  PERFETTO_INTERNAL_SCOPED_TRACK_EVENT(category, name, ##__VA_ARGS__)
-
-// Emit a slice which has zero duration.
-#define TRACE_EVENT_INSTANT(category, name, ...)             \
-  PERFETTO_INTERNAL_TRACK_EVENT(                             \
-      category, ::perfetto::internal::GetStaticString(name), \
-      ::perfetto::protos::pbzero::TrackEvent::TYPE_INSTANT, ##__VA_ARGS__)
-
-// Efficiently determine if the given static or dynamic trace category or
-// category group is enabled for tracing.
-#define TRACE_EVENT_CATEGORY_ENABLED(category) \
-  PERFETTO_INTERNAL_CATEGORY_ENABLED(category)
-
-// Time-varying numeric data can be recorded with the TRACE_COUNTER macro:
-//
-//   TRACE_COUNTER("cat", counter_track[, timestamp], value);
-//
-// For example, to record a single value for a counter called "MyCounter":
-//
-//   TRACE_COUNTER("category", "MyCounter", 1234.5);
-//
-// This data is displayed as a counter track in the Perfetto UI.
-//
-// Both integer and floating point counter values are supported. Counters can
-// also be annotated with additional information such as units, for example, for
-// tracking the rendering framerate in terms of frames per second or "fps":
-//
-//   TRACE_COUNTER("category", perfetto::CounterTrack("Framerate", "fps"), 120);
-//
-// As another example, a memory counter that records bytes but accepts samples
-// as kilobytes (to reduce trace binary size) can be defined like this:
-//
-//   perfetto::CounterTrack memory_track = perfetto::CounterTrack("Memory")
-//       .set_unit("bytes")
-//       .set_multiplier(1024);
-//   TRACE_COUNTER("category", memory_track, 4 /* = 4096 bytes */);
-//
-// See /protos/perfetto/trace/track_event/counter_descriptor.proto
-// for the full set of attributes for a counter track.
-//
-// To record a counter value at a specific point in time (instead of the current
-// time), you can pass in a custom timestamp:
-//
-//   // First record the current time and counter value.
-//   uint64_t timestamp = perfetto::TrackEvent::GetTraceTimeNs();
-//   int64_t value = 1234;
-//
-//   // Later, emit a sample at that point in time.
-//   TRACE_COUNTER("category", "MyCounter", timestamp, value);
-//
-#define TRACE_COUNTER(category, track, ...)                 \
-  PERFETTO_INTERNAL_TRACK_EVENT(                            \
-      category, /*name=*/nullptr,                           \
-      ::perfetto::protos::pbzero::TrackEvent::TYPE_COUNTER, \
-      ::perfetto::CounterTrack(track), ##__VA_ARGS__)
-
-// TODO(skyostil): Add flow events.
-
-#endif  // INCLUDE_PERFETTO_TRACING_TRACK_EVENT_H_
-// gen_amalgamated begin header: include/perfetto/tracing/track_event_interned_data_index.h
-/*
- * Copyright (C) 2019 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef INCLUDE_PERFETTO_TRACING_TRACK_EVENT_INTERNED_DATA_INDEX_H_
-#define INCLUDE_PERFETTO_TRACING_TRACK_EVENT_INTERNED_DATA_INDEX_H_
-
-// gen_amalgamated expanded: #include "perfetto/tracing/internal/track_event_internal.h"
-
-// gen_amalgamated expanded: #include "perfetto/base/compiler.h"
-// gen_amalgamated expanded: #include "perfetto/tracing/event_context.h"
-
-#include <map>
-#include <type_traits>
-#include <unordered_map>
-
-// This file has templates for defining your own interned data types to be used
-// with track event. Interned data can be useful for avoiding repeating the same
-// constant data (e.g., strings) throughout the trace.
-//
-// =============
-// Example usage
-// =============
-//
-// First define an interning index for your type. It should map to a specific
-// field of interned_data.proto and define how the interned data is written into
-// that message.
-//
-//   struct MyInternedData
-//       : public perfetto::TrackEventInternedDataIndex<
-//           MyInternedData,
-//           perfetto::protos::pbzero::InternedData::kMyInternedDataFieldNumber,
-//           const char*> {
-//     static void Add(perfetto::protos::pbzero::InternedData* interned_data,
-//                      size_t iid,
-//                      const char* value) {
-//       auto my_data = interned_data->add_my_interned_data();
-//       my_data->set_iid(iid);
-//       my_data->set_value(value);
-//     }
-//   };
-//
-// Next, use your interned data in a trace point as shown below. The interned
-// string will only be emitted the first time the trace point is hit.
-//
-//   TRACE_EVENT_BEGIN(
-//      "category", "Event", [&](perfetto::EventContext ctx) {
-//        auto my_message = ctx.event()->set_my_message();
-//        size_t iid = MyInternedData::Get(&ctx, "Some data");
-//        my_message->set_iid(iid);
-//      });
-//
-
-namespace perfetto {
-
-// By default, the interning index stores a full copy of the interned data. This
-// ensures the same data is always mapped to the same interning id, and there is
-// no danger of collisions. This comes at the cost of memory usage, however, so
-// consider using HashedInternedDataTraits if that may be an issue.
-//
-// This type of index also performs hashing on the stored data for lookups; for
-// types where this isn't necessary (e.g., raw const char*), use
-// SmallInternedDataTraits.
-struct BigInternedDataTraits {
-  template <typename ValueType>
-  class Index {
-   public:
-    bool LookUpOrInsert(size_t* iid, const ValueType& value) {
-      size_t next_id = data_.size() + 1;
-      auto it_and_inserted = data_.insert(std::make_pair(value, next_id));
-      if (!it_and_inserted.second) {
-        *iid = it_and_inserted.first->second;
-        return true;
-      }
-      *iid = next_id;
-      return false;
-    }
-
-   private:
-    std::unordered_map<ValueType, size_t> data_;
-  };
-};
-
-// This type of interning index keeps full copies of interned data without
-// hashing the values. This is a good fit for small types that can be directly
-// used as index keys.
-struct SmallInternedDataTraits {
-  template <typename ValueType>
-  class Index {
-   public:
-    bool LookUpOrInsert(size_t* iid, const ValueType& value) {
-      size_t next_id = data_.size() + 1;
-      auto it_and_inserted = data_.insert(std::make_pair(value, next_id));
-      if (!it_and_inserted.second) {
-        *iid = it_and_inserted.first->second;
-        return true;
-      }
-      *iid = next_id;
-      return false;
-    }
-
-   private:
-    std::map<ValueType, size_t> data_;
-  };
-};
-
-// This type of interning index only stores the hash of the interned values
-// instead of the values themselves. This is more efficient in terms of memory
-// usage, but assumes that there are no hash collisions. If a hash collision
-// occurs, two or more values will be mapped to the same interning id.
-//
-// Note that the given type must have a specialization for std::hash.
-struct HashedInternedDataTraits {
-  template <typename ValueType>
-  class Index {
-   public:
-    bool LookUpOrInsert(size_t* iid, const ValueType& value) {
-      auto key = std::hash<ValueType>()(value);
-      size_t next_id = data_.size() + 1;
-      auto it_and_inserted = data_.insert(std::make_pair(key, next_id));
-      if (!it_and_inserted.second) {
-        *iid = it_and_inserted.first->second;
-        return true;
-      }
-      *iid = next_id;
-      return false;
-    }
-
-   private:
-    std::map<size_t, size_t> data_;
-  };
-};
-
-// A templated base class for an interned data type which corresponds to a field
-// in interned_data.proto.
-//
-// |InternedDataType| must be the type of the subclass.
-// |FieldNumber| is the corresponding protobuf field in InternedData.
-// |ValueType| is the type which is stored in the index. It must be copyable.
-// |Traits| can be used to customize the storage and lookup mechanism.
-//
-// The subclass should define a static method with the following signature for
-// committing interned data together with the interning id |iid| into the trace:
-//
-//   static void Add(perfetto::protos::pbzero::InternedData*,
-//                   size_t iid,
-//                   const ValueType& value);
-//
-template <typename InternedDataType,
-          size_t FieldNumber,
-          typename ValueType,
-          // Avoid unnecessary hashing for pointers by default.
-          typename Traits =
-              typename std::conditional<(std::is_pointer<ValueType>::value),
-                                        SmallInternedDataTraits,
-                                        BigInternedDataTraits>::type>
-class TrackEventInternedDataIndex
-    : public internal::BaseTrackEventInternedDataIndex {
- public:
-  // Return an interning id for |value|. The returned id can be immediately
-  // written to the trace. The optional |add_args| are passed to the Add()
-  // function.
-  template <typename... Args>
-  static size_t Get(EventContext* ctx,
-                    const ValueType& value,
-                    Args&&... add_args) {
-    // First check if the value exists in the dictionary.
-    auto index_for_field = GetOrCreateIndexForField(ctx->incremental_state_);
-    size_t iid;
-    if (PERFETTO_LIKELY(index_for_field->index_.LookUpOrInsert(&iid, value))) {
-      PERFETTO_DCHECK(iid);
-      return iid;
-    }
-
-    // If not, we need to serialize the definition of the interned value into
-    // the heap buffered message (which is committed to the trace when the
-    // packet ends).
-    PERFETTO_DCHECK(iid);
-    InternedDataType::Add(
-        ctx->incremental_state_->serialized_interned_data.get(), iid,
-        std::move(value), std::forward<Args>(add_args)...);
-    return iid;
-  }
-
- private:
-  static InternedDataType* GetOrCreateIndexForField(
-      internal::TrackEventIncrementalState* incremental_state) {
-    // Fast path: look for matching field number.
-    for (const auto& entry : incremental_state->interned_data_indices) {
-      if (entry.first == FieldNumber) {
-#if PERFETTO_DCHECK_IS_ON()
-        if (strcmp(PERFETTO_DEBUG_FUNCTION_IDENTIFIER(),
-                   entry.second->type_id_)) {
-          PERFETTO_FATAL(
-              "Interned data accessed under different types! Previous type: "
-              "%s. New type: %s.",
-              entry.second->type_id_, PERFETTO_DEBUG_FUNCTION_IDENTIFIER());
-        }
-        // If an interned data index is defined in an anonymous namespace, we
-        // can end up with multiple copies of it in the same program. Because
-        // they will all share a memory address through TLS, this can lead to
-        // subtle data corruption if all the copies aren't exactly identical.
-        // Try to detect this by checking if the Add() function address remains
-        // constant.
-        if (reinterpret_cast<void*>(&InternedDataType::Add) !=
-            entry.second->add_function_ptr_) {
-          PERFETTO_FATAL(
-              "Inconsistent interned data index. Maybe the index was defined "
-              "in an anonymous namespace in a header or copied to multiple "
-              "files? Duplicate index definitions can lead to memory "
-              "corruption! Type id: %s",
-              entry.second->type_id_);
-        }
-#endif  // PERFETTO_DCHECK_IS_ON()
-        return reinterpret_cast<InternedDataType*>(entry.second.get());
-      }
-    }
-    // No match -- add a new entry for this field.
-    for (auto& entry : incremental_state->interned_data_indices) {
-      if (!entry.first) {
-        entry.first = FieldNumber;
-        entry.second.reset(new InternedDataType());
-#if PERFETTO_DCHECK_IS_ON()
-        entry.second->type_id_ = PERFETTO_DEBUG_FUNCTION_IDENTIFIER();
-        entry.second->add_function_ptr_ =
-            reinterpret_cast<void*>(&InternedDataType::Add);
-#endif  // PERFETTO_DCHECK_IS_ON()
-        return reinterpret_cast<InternedDataType*>(entry.second.get());
-      }
-    }
-    // Out of space in the interned data index table.
-    PERFETTO_CHECK(false);
-  }
-
-  // The actual interning dictionary for this type of interned data. The actual
-  // container type is defined by |Traits|, hence the extra layer of template
-  // indirection here.
-  typename Traits::template Index<ValueType> index_;
-};
-
-}  // namespace perfetto
-
-#endif  // INCLUDE_PERFETTO_TRACING_TRACK_EVENT_INTERNED_DATA_INDEX_H_
-// gen_amalgamated begin header: include/perfetto/tracing/track_event_legacy.h
-/*
- * Copyright (C) 2020 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef INCLUDE_PERFETTO_TRACING_TRACK_EVENT_LEGACY_H_
-#define INCLUDE_PERFETTO_TRACING_TRACK_EVENT_LEGACY_H_
-
-// This file defines a compatibility shim between legacy (Chrome, V8) trace
-// event macros and track events. To avoid accidentally introducing legacy
-// events in new code, the PERFETTO_ENABLE_LEGACY_TRACE_EVENTS macro must be set
-// to 1 activate the compatibility layer.
-
-// gen_amalgamated expanded: #include "perfetto/base/compiler.h"
-// gen_amalgamated expanded: #include "perfetto/tracing/track_event.h"
-
-#include <stdint.h>
-
-#ifndef PERFETTO_ENABLE_LEGACY_TRACE_EVENTS
-#define PERFETTO_ENABLE_LEGACY_TRACE_EVENTS 0
-#endif
-
-// Ignore GCC warning about a missing argument for a variadic macro parameter.
-#if defined(__GNUC__) || defined(__clang__)
-#pragma GCC system_header
-#endif
-
-// ----------------------------------------------------------------------------
-// Constants.
-// ----------------------------------------------------------------------------
-
-namespace perfetto {
-namespace legacy {
-
-enum TraceEventFlag {
-  kTraceEventFlagNone = 0,
-  kTraceEventFlagCopy = 1u << 0,
-  kTraceEventFlagHasId = 1u << 1,
-  kTraceEventFlagScopeOffset = 1u << 2,
-  kTraceEventFlagScopeExtra = 1u << 3,
-  kTraceEventFlagExplicitTimestamp = 1u << 4,
-  kTraceEventFlagAsyncTTS = 1u << 5,
-  kTraceEventFlagBindToEnclosing = 1u << 6,
-  kTraceEventFlagFlowIn = 1u << 7,
-  kTraceEventFlagFlowOut = 1u << 8,
-  kTraceEventFlagHasContextId = 1u << 9,
-  kTraceEventFlagHasProcessId = 1u << 10,
-  kTraceEventFlagHasLocalId = 1u << 11,
-  kTraceEventFlagHasGlobalId = 1u << 12,
-  // TODO(eseckler): Remove once we have native support for typed proto events
-  // in TRACE_EVENT macros.
-  kTraceEventFlagTypedProtoArgs = 1u << 15,
-  kTraceEventFlagJavaStringLiterals = 1u << 16,
-};
-
-enum PerfettoLegacyCurrentThreadId { kCurrentThreadId };
-
-}  // namespace legacy
-}  // namespace perfetto
-
-#if PERFETTO_ENABLE_LEGACY_TRACE_EVENTS
-// The following constants are defined in the global namespace, since they were
-// originally implemented as macros.
-
-// Event phases.
-static constexpr char TRACE_EVENT_PHASE_BEGIN = 'B';
-static constexpr char TRACE_EVENT_PHASE_END = 'E';
-static constexpr char TRACE_EVENT_PHASE_COMPLETE = 'X';
-static constexpr char TRACE_EVENT_PHASE_INSTANT = 'I';
-static constexpr char TRACE_EVENT_PHASE_ASYNC_BEGIN = 'S';
-static constexpr char TRACE_EVENT_PHASE_ASYNC_STEP_INTO = 'T';
-static constexpr char TRACE_EVENT_PHASE_ASYNC_STEP_PAST = 'p';
-static constexpr char TRACE_EVENT_PHASE_ASYNC_END = 'F';
-static constexpr char TRACE_EVENT_PHASE_NESTABLE_ASYNC_BEGIN = 'b';
-static constexpr char TRACE_EVENT_PHASE_NESTABLE_ASYNC_END = 'e';
-static constexpr char TRACE_EVENT_PHASE_NESTABLE_ASYNC_INSTANT = 'n';
-static constexpr char TRACE_EVENT_PHASE_FLOW_BEGIN = 's';
-static constexpr char TRACE_EVENT_PHASE_FLOW_STEP = 't';
-static constexpr char TRACE_EVENT_PHASE_FLOW_END = 'f';
-static constexpr char TRACE_EVENT_PHASE_METADATA = 'M';
-static constexpr char TRACE_EVENT_PHASE_COUNTER = 'C';
-static constexpr char TRACE_EVENT_PHASE_SAMPLE = 'P';
-static constexpr char TRACE_EVENT_PHASE_CREATE_OBJECT = 'N';
-static constexpr char TRACE_EVENT_PHASE_SNAPSHOT_OBJECT = 'O';
-static constexpr char TRACE_EVENT_PHASE_DELETE_OBJECT = 'D';
-static constexpr char TRACE_EVENT_PHASE_MEMORY_DUMP = 'v';
-static constexpr char TRACE_EVENT_PHASE_MARK = 'R';
-static constexpr char TRACE_EVENT_PHASE_CLOCK_SYNC = 'c';
-static constexpr char TRACE_EVENT_PHASE_ENTER_CONTEXT = '(';
-static constexpr char TRACE_EVENT_PHASE_LEAVE_CONTEXT = ')';
-
-// Flags for changing the behavior of TRACE_EVENT_API_ADD_TRACE_EVENT.
-static constexpr uint32_t TRACE_EVENT_FLAG_NONE =
-    perfetto::legacy::kTraceEventFlagNone;
-static constexpr uint32_t TRACE_EVENT_FLAG_COPY =
-    perfetto::legacy::kTraceEventFlagCopy;
-static constexpr uint32_t TRACE_EVENT_FLAG_HAS_ID =
-    perfetto::legacy::kTraceEventFlagHasId;
-static constexpr uint32_t TRACE_EVENT_FLAG_SCOPE_OFFSET =
-    perfetto::legacy::kTraceEventFlagScopeOffset;
-static constexpr uint32_t TRACE_EVENT_FLAG_SCOPE_EXTRA =
-    perfetto::legacy::kTraceEventFlagScopeExtra;
-static constexpr uint32_t TRACE_EVENT_FLAG_EXPLICIT_TIMESTAMP =
-    perfetto::legacy::kTraceEventFlagExplicitTimestamp;
-static constexpr uint32_t TRACE_EVENT_FLAG_ASYNC_TTS =
-    perfetto::legacy::kTraceEventFlagAsyncTTS;
-static constexpr uint32_t TRACE_EVENT_FLAG_BIND_TO_ENCLOSING =
-    perfetto::legacy::kTraceEventFlagBindToEnclosing;
-static constexpr uint32_t TRACE_EVENT_FLAG_FLOW_IN =
-    perfetto::legacy::kTraceEventFlagFlowIn;
-static constexpr uint32_t TRACE_EVENT_FLAG_FLOW_OUT =
-    perfetto::legacy::kTraceEventFlagFlowOut;
-static constexpr uint32_t TRACE_EVENT_FLAG_HAS_CONTEXT_ID =
-    perfetto::legacy::kTraceEventFlagHasContextId;
-static constexpr uint32_t TRACE_EVENT_FLAG_HAS_PROCESS_ID =
-    perfetto::legacy::kTraceEventFlagHasProcessId;
-static constexpr uint32_t TRACE_EVENT_FLAG_HAS_LOCAL_ID =
-    perfetto::legacy::kTraceEventFlagHasLocalId;
-static constexpr uint32_t TRACE_EVENT_FLAG_HAS_GLOBAL_ID =
-    perfetto::legacy::kTraceEventFlagHasGlobalId;
-static constexpr uint32_t TRACE_EVENT_FLAG_TYPED_PROTO_ARGS =
-    perfetto::legacy::kTraceEventFlagTypedProtoArgs;
-static constexpr uint32_t TRACE_EVENT_FLAG_JAVA_STRING_LITERALS =
-    perfetto::legacy::kTraceEventFlagJavaStringLiterals;
-
-static constexpr uint32_t TRACE_EVENT_FLAG_SCOPE_MASK =
-    TRACE_EVENT_FLAG_SCOPE_OFFSET | TRACE_EVENT_FLAG_SCOPE_EXTRA;
-
-// Type values for identifying types in the TraceValue union.
-static constexpr uint8_t TRACE_VALUE_TYPE_BOOL = 1;
-static constexpr uint8_t TRACE_VALUE_TYPE_UINT = 2;
-static constexpr uint8_t TRACE_VALUE_TYPE_INT = 3;
-static constexpr uint8_t TRACE_VALUE_TYPE_DOUBLE = 4;
-static constexpr uint8_t TRACE_VALUE_TYPE_POINTER = 5;
-static constexpr uint8_t TRACE_VALUE_TYPE_STRING = 6;
-static constexpr uint8_t TRACE_VALUE_TYPE_COPY_STRING = 7;
-static constexpr uint8_t TRACE_VALUE_TYPE_CONVERTABLE = 8;
-static constexpr uint8_t TRACE_VALUE_TYPE_PROTO = 9;
-
-// Enum reflecting the scope of an INSTANT event. Must fit within
-// TRACE_EVENT_FLAG_SCOPE_MASK.
-static constexpr uint8_t TRACE_EVENT_SCOPE_GLOBAL = 0u << 2;
-static constexpr uint8_t TRACE_EVENT_SCOPE_PROCESS = 1u << 2;
-static constexpr uint8_t TRACE_EVENT_SCOPE_THREAD = 2u << 2;
-
-static constexpr char TRACE_EVENT_SCOPE_NAME_GLOBAL = 'g';
-static constexpr char TRACE_EVENT_SCOPE_NAME_PROCESS = 'p';
-static constexpr char TRACE_EVENT_SCOPE_NAME_THREAD = 't';
-
-static constexpr auto TRACE_EVENT_API_CURRENT_THREAD_ID =
-    perfetto::legacy::kCurrentThreadId;
-
-#endif  // PERFETTO_ENABLE_LEGACY_TRACE_EVENTS
-
-// ----------------------------------------------------------------------------
-// Internal legacy trace point implementation.
-// ----------------------------------------------------------------------------
-
-namespace perfetto {
-namespace legacy {
-
-// The following user-provided adaptors are used to serialize user-defined
-// thread id and time types into track events. For full compatibility, the user
-// should also define the following macros appropriately:
-//
-//   #define TRACE_TIME_TICKS_NOW() ...
-//   #define TRACE_TIME_NOW() ...
-
-// User-provided function to convert an abstract thread id into a thread track.
-template <typename T>
-ThreadTrack ConvertThreadId(const T&);
-
-// Built-in implementation for events referring to the current thread.
-template <>
-ThreadTrack PERFETTO_EXPORT
-ConvertThreadId(const PerfettoLegacyCurrentThreadId&);
-
-}  // namespace legacy
-
-namespace internal {
-
-// LegacyTraceId encapsulates an ID that can either be an integer or pointer.
-class PERFETTO_EXPORT LegacyTraceId {
- public:
-  // Can be combined with WithScope.
-  class LocalId {
-   public:
-    explicit LocalId(const void* raw_id)
-        : raw_id_(static_cast<uint64_t>(reinterpret_cast<uintptr_t>(raw_id))) {}
-    explicit LocalId(uint64_t raw_id) : raw_id_(raw_id) {}
-    uint64_t raw_id() const { return raw_id_; }
-
-   private:
-    uint64_t raw_id_;
-  };
-
-  // Can be combined with WithScope.
-  class GlobalId {
-   public:
-    explicit GlobalId(uint64_t raw_id) : raw_id_(raw_id) {}
-    uint64_t raw_id() const { return raw_id_; }
-
-   private:
-    uint64_t raw_id_;
-  };
-
-  class WithScope {
-   public:
-    WithScope(const char* scope, uint64_t raw_id)
-        : scope_(scope), raw_id_(raw_id) {}
-    WithScope(const char* scope, LocalId local_id)
-        : scope_(scope), raw_id_(local_id.raw_id()) {
-      id_flags_ = legacy::kTraceEventFlagHasLocalId;
-    }
-    WithScope(const char* scope, GlobalId global_id)
-        : scope_(scope), raw_id_(global_id.raw_id()) {
-      id_flags_ = legacy::kTraceEventFlagHasGlobalId;
-    }
-    WithScope(const char* scope, uint64_t prefix, uint64_t raw_id)
-        : scope_(scope), has_prefix_(true), prefix_(prefix), raw_id_(raw_id) {}
-    WithScope(const char* scope, uint64_t prefix, GlobalId global_id)
-        : scope_(scope),
-          has_prefix_(true),
-          prefix_(prefix),
-          raw_id_(global_id.raw_id()) {
-      id_flags_ = legacy::kTraceEventFlagHasGlobalId;
-    }
-    uint64_t raw_id() const { return raw_id_; }
-    const char* scope() const { return scope_; }
-    bool has_prefix() const { return has_prefix_; }
-    uint64_t prefix() const { return prefix_; }
-    uint32_t id_flags() const { return id_flags_; }
-
-   private:
-    const char* scope_ = nullptr;
-    bool has_prefix_ = false;
-    uint64_t prefix_;
-    uint64_t raw_id_;
-    uint32_t id_flags_ = legacy::kTraceEventFlagHasId;
-  };
-
-  explicit LegacyTraceId(const void* raw_id)
-      : raw_id_(static_cast<uint64_t>(reinterpret_cast<uintptr_t>(raw_id))) {
-    id_flags_ = legacy::kTraceEventFlagHasLocalId;
-  }
-  explicit LegacyTraceId(uint64_t raw_id) : raw_id_(raw_id) {}
-  explicit LegacyTraceId(uint32_t raw_id) : raw_id_(raw_id) {}
-  explicit LegacyTraceId(uint16_t raw_id) : raw_id_(raw_id) {}
-  explicit LegacyTraceId(uint8_t raw_id) : raw_id_(raw_id) {}
-  explicit LegacyTraceId(int64_t raw_id)
-      : raw_id_(static_cast<uint64_t>(raw_id)) {}
-  explicit LegacyTraceId(int32_t raw_id)
-      : raw_id_(static_cast<uint64_t>(raw_id)) {}
-  explicit LegacyTraceId(int16_t raw_id)
-      : raw_id_(static_cast<uint64_t>(raw_id)) {}
-  explicit LegacyTraceId(int8_t raw_id)
-      : raw_id_(static_cast<uint64_t>(raw_id)) {}
-  explicit LegacyTraceId(LocalId raw_id) : raw_id_(raw_id.raw_id()) {
-    id_flags_ = legacy::kTraceEventFlagHasLocalId;
-  }
-  explicit LegacyTraceId(GlobalId raw_id) : raw_id_(raw_id.raw_id()) {
-    id_flags_ = legacy::kTraceEventFlagHasGlobalId;
-  }
-  explicit LegacyTraceId(WithScope scoped_id)
-      : scope_(scoped_id.scope()),
-        has_prefix_(scoped_id.has_prefix()),
-        prefix_(scoped_id.prefix()),
-        raw_id_(scoped_id.raw_id()),
-        id_flags_(scoped_id.id_flags()) {}
-
-  uint64_t raw_id() const { return raw_id_; }
-  const char* scope() const { return scope_; }
-  bool has_prefix() const { return has_prefix_; }
-  uint64_t prefix() const { return prefix_; }
-  uint32_t id_flags() const { return id_flags_; }
-
-  void Write(protos::pbzero::TrackEvent::LegacyEvent*,
-             uint32_t event_flags) const;
-
- private:
-  const char* scope_ = nullptr;
-  bool has_prefix_ = false;
-  uint64_t prefix_;
-  uint64_t raw_id_;
-  uint32_t id_flags_ = legacy::kTraceEventFlagHasId;
-};
-
-}  // namespace internal
-}  // namespace perfetto
-
-#if PERFETTO_ENABLE_LEGACY_TRACE_EVENTS
-
-namespace perfetto {
-namespace internal {
-
-class PERFETTO_EXPORT TrackEventLegacy {
- public:
-  static constexpr protos::pbzero::TrackEvent::Type PhaseToType(char phase) {
-    // clang-format off
-    return (phase == TRACE_EVENT_PHASE_BEGIN) ?
-               protos::pbzero::TrackEvent::TYPE_SLICE_BEGIN :
-           (phase == TRACE_EVENT_PHASE_END) ?
-               protos::pbzero::TrackEvent::TYPE_SLICE_END :
-           (phase == TRACE_EVENT_PHASE_INSTANT) ?
-               protos::pbzero::TrackEvent::TYPE_INSTANT :
-           protos::pbzero::TrackEvent::TYPE_UNSPECIFIED;
-    // clang-format on
-  }
-
-  // Reduce binary size overhead by outlining most of the code for writing a
-  // legacy trace event.
-  template <typename... Args>
-  static void WriteLegacyEvent(EventContext ctx,
-                               char phase,
-                               uint32_t flags,
-                               Args&&... args) PERFETTO_NO_INLINE {
-    AddDebugAnnotations(&ctx, std::forward<Args>(args)...);
-    if (NeedLegacyFlags(phase, flags)) {
-      auto legacy_event = ctx.event()->set_legacy_event();
-      SetLegacyFlags(legacy_event, phase, flags);
-    }
-  }
-
-  template <typename ThreadIdType, typename... Args>
-  static void WriteLegacyEventWithIdAndTid(EventContext ctx,
-                                           char phase,
-                                           uint32_t flags,
-                                           const LegacyTraceId& id,
-                                           const ThreadIdType& thread_id,
-                                           Args&&... args) PERFETTO_NO_INLINE {
-    //
-    // Overrides to consider:
-    //
-    // 1. If we have an id, we need to write {unscoped,local,global}_id and/or
-    //    bind_id.
-    // 2. If we have a thread id, we need to write track_uuid() or
-    //    {pid,tid}_override if the id represents another process.  The
-    //    conversion from |thread_id| happens in embedder code since the type is
-    //    embedder-specified.
-    // 3. If we have a timestamp, we need to write a different timestamp in the
-    //    trace packet itself and make sure TrackEvent won't write one
-    //    internally. This is already done at the call site.
-    //
-    flags |= id.id_flags();
-    AddDebugAnnotations(&ctx, std::forward<Args>(args)...);
-    if (NeedLegacyFlags(phase, flags)) {
-      auto legacy_event = ctx.event()->set_legacy_event();
-      SetLegacyFlags(legacy_event, phase, flags);
-      if (id.id_flags())
-        id.Write(legacy_event, flags);
-      if (flags & TRACE_EVENT_FLAG_HAS_PROCESS_ID) {
-        // The thread identifier actually represents a process id. Let's set an
-        // override for it.
-        int32_t pid_override =
-            static_cast<int32_t>(legacy::ConvertThreadId(thread_id).tid);
-        legacy_event->set_pid_override(pid_override);
-        legacy_event->set_tid_override(-1);
-      }
-    }
-  }
-
-  // No arguments.
-  static void AddDebugAnnotations(EventContext*) {}
-
-  // One argument.
-  template <typename ArgType>
-  static void AddDebugAnnotations(EventContext* ctx,
-                                  const char* arg_name,
-                                  ArgType&& arg_value) {
-    TrackEventInternal::AddDebugAnnotation(ctx, arg_name, arg_value);
-  }
-
-  // Two arguments.
-  template <typename ArgType, typename ArgType2>
-  static void AddDebugAnnotations(EventContext* ctx,
-                                  const char* arg_name,
-                                  ArgType&& arg_value,
-                                  const char* arg_name2,
-                                  ArgType2&& arg_value2) {
-    TrackEventInternal::AddDebugAnnotation(ctx, arg_name, arg_value);
-    TrackEventInternal::AddDebugAnnotation(ctx, arg_name2, arg_value2);
-  }
-
- private:
-  static bool NeedLegacyFlags(char phase, uint32_t flags) {
-    if (PhaseToType(phase) == protos::pbzero::TrackEvent::TYPE_UNSPECIFIED)
-      return true;
-    // TODO(skyostil): Implement/deprecate:
-    // - TRACE_EVENT_FLAG_EXPLICIT_TIMESTAMP
-    // - TRACE_EVENT_FLAG_HAS_CONTEXT_ID
-    // - TRACE_EVENT_FLAG_TYPED_PROTO_ARGS
-    // - TRACE_EVENT_FLAG_JAVA_STRING_LITERALS
-    return flags &
-           (TRACE_EVENT_FLAG_HAS_ID | TRACE_EVENT_FLAG_HAS_LOCAL_ID |
-            TRACE_EVENT_FLAG_HAS_GLOBAL_ID | TRACE_EVENT_FLAG_ASYNC_TTS |
-            TRACE_EVENT_FLAG_BIND_TO_ENCLOSING | TRACE_EVENT_FLAG_FLOW_IN |
-            TRACE_EVENT_FLAG_FLOW_OUT | TRACE_EVENT_FLAG_HAS_PROCESS_ID);
-  }
-
-  static void SetLegacyFlags(
-      protos::pbzero::TrackEvent::LegacyEvent* legacy_event,
-      char phase,
-      uint32_t flags) {
-    if (PhaseToType(phase) == protos::pbzero::TrackEvent::TYPE_UNSPECIFIED)
-      legacy_event->set_phase(phase);
-    if (flags & TRACE_EVENT_FLAG_ASYNC_TTS)
-      legacy_event->set_use_async_tts(true);
-    if (flags & TRACE_EVENT_FLAG_BIND_TO_ENCLOSING)
-      legacy_event->set_bind_to_enclosing(true);
-
-    const auto kFlowIn = TRACE_EVENT_FLAG_FLOW_IN;
-    const auto kFlowOut = TRACE_EVENT_FLAG_FLOW_OUT;
-    const auto kFlowInOut = kFlowIn | kFlowOut;
-    if ((flags & kFlowInOut) == kFlowInOut) {
-      legacy_event->set_flow_direction(
-          protos::pbzero::TrackEvent::LegacyEvent::FLOW_INOUT);
-    } else if (flags & kFlowIn) {
-      legacy_event->set_flow_direction(
-          protos::pbzero::TrackEvent::LegacyEvent::FLOW_IN);
-    } else if (flags & kFlowOut) {
-      legacy_event->set_flow_direction(
-          protos::pbzero::TrackEvent::LegacyEvent::FLOW_OUT);
-    }
-  }
-};
-
-}  // namespace internal
-}  // namespace perfetto
-
-// Implementations for the INTERNAL_* adapter macros used by the trace points
-// below.
-#define PERFETTO_INTERNAL_LEGACY_EVENT_ON_TRACK(phase, category, name, track, \
-                                                ...)                          \
-  PERFETTO_INTERNAL_TRACK_EVENT(                                              \
-      category,                                                               \
-      ::perfetto::internal::GetStaticString(::perfetto::StaticString{name}),  \
-      ::perfetto::internal::TrackEventLegacy::PhaseToType(phase), track,      \
-      ##__VA_ARGS__);
-
-// The main entrypoint for writing unscoped legacy events.  This macro
-// determines the right track to write the event on based on |flags| and
-// |thread_id|.
-#define PERFETTO_INTERNAL_LEGACY_EVENT(phase, category, name, flags,         \
-                                       thread_id, ...)                       \
-  [&]() {                                                                    \
-    constexpr auto& kDefaultTrack =                                          \
-        ::perfetto::internal::TrackEventInternal::kDefaultTrack;             \
-    /* First check the scope for instant events. */                          \
-    if ((phase) == TRACE_EVENT_PHASE_INSTANT) {                              \
-      /* Note: Avoids the need to set LegacyEvent::instant_event_scope. */   \
-      auto scope = (flags)&TRACE_EVENT_FLAG_SCOPE_MASK;                      \
-      switch (scope) {                                                       \
-        case TRACE_EVENT_SCOPE_GLOBAL:                                       \
-          PERFETTO_INTERNAL_LEGACY_EVENT_ON_TRACK(                           \
-              phase, category, name, ::perfetto::Track::Global(0),           \
-              ##__VA_ARGS__);                                                \
-          return;                                                            \
-        case TRACE_EVENT_SCOPE_PROCESS:                                      \
-          PERFETTO_INTERNAL_LEGACY_EVENT_ON_TRACK(                           \
-              phase, category, name, ::perfetto::ProcessTrack::Current(),    \
-              ##__VA_ARGS__);                                                \
-          return;                                                            \
-        default:                                                             \
-        case TRACE_EVENT_SCOPE_THREAD:                                       \
-          /* Fallthrough. */                                                 \
-          break;                                                             \
-      }                                                                      \
-    }                                                                        \
-    /* If an event targets the current thread or another process, write      \
-     * it on the current thread's track. The process override case is        \
-     * handled through |pid_override| in WriteLegacyEvent. */                \
-    if (std::is_same<                                                        \
-            decltype(thread_id),                                             \
-            ::perfetto::legacy::PerfettoLegacyCurrentThreadId>::value ||     \
-        ((flags)&TRACE_EVENT_FLAG_HAS_PROCESS_ID)) {                         \
-      PERFETTO_INTERNAL_LEGACY_EVENT_ON_TRACK(phase, category, name,         \
-                                              kDefaultTrack, ##__VA_ARGS__); \
-    } else {                                                                 \
-      PERFETTO_INTERNAL_LEGACY_EVENT_ON_TRACK(                               \
-          phase, category, name,                                             \
-          ::perfetto::legacy::ConvertThreadId(thread_id), ##__VA_ARGS__);    \
-    }                                                                        \
-  }()
-
-#define INTERNAL_TRACE_EVENT_ADD(phase, category, name, flags, ...)        \
-  PERFETTO_INTERNAL_LEGACY_EVENT(                                          \
-      phase, category, name, flags, ::perfetto::legacy::kCurrentThreadId,  \
-      [&](perfetto::EventContext ctx) PERFETTO_NO_THREAD_SAFETY_ANALYSIS { \
-        using ::perfetto::internal::TrackEventLegacy;                      \
-        TrackEventLegacy::WriteLegacyEvent(std::move(ctx), phase, flags,   \
-                                           ##__VA_ARGS__);                 \
-      })
-
-// PERFETTO_INTERNAL_SCOPED_TRACK_EVENT does not require GetStaticString, as it
-// uses TRACE_EVENT_BEGIN/END internally, which already have this call.
-#define INTERNAL_TRACE_EVENT_ADD_SCOPED(category, name, ...)               \
-  PERFETTO_INTERNAL_SCOPED_TRACK_EVENT(                                    \
-      category, ::perfetto::StaticString{name},                            \
-      [&](perfetto::EventContext ctx) PERFETTO_NO_THREAD_SAFETY_ANALYSIS { \
-        using ::perfetto::internal::TrackEventLegacy;                      \
-        TrackEventLegacy::AddDebugAnnotations(&ctx, ##__VA_ARGS__);        \
-      })
-
-// PERFETTO_INTERNAL_SCOPED_TRACK_EVENT does not require GetStaticString, as it
-// uses TRACE_EVENT_BEGIN/END internally, which already have this call.
-#define INTERNAL_TRACE_EVENT_ADD_SCOPED_WITH_FLOW(category, name, bind_id,   \
-                                                  flags, ...)                \
-  PERFETTO_INTERNAL_SCOPED_TRACK_EVENT(                                      \
-      category, ::perfetto::StaticString{name},                              \
-      [&](perfetto::EventContext ctx) PERFETTO_NO_THREAD_SAFETY_ANALYSIS {   \
-        using ::perfetto::internal::TrackEventLegacy;                        \
-        ::perfetto::internal::LegacyTraceId PERFETTO_UID(trace_id){bind_id}; \
-        TrackEventLegacy::WriteLegacyEventWithIdAndTid(                      \
-            std::move(ctx), TRACE_EVENT_PHASE_BEGIN, flags,                  \
-            PERFETTO_UID(trace_id), TRACE_EVENT_API_CURRENT_THREAD_ID,       \
-            ##__VA_ARGS__);                                                  \
-      })
-
-#define INTERNAL_TRACE_EVENT_ADD_WITH_TIMESTAMP(phase, category, name,     \
-                                                timestamp, flags, ...)     \
-  PERFETTO_INTERNAL_LEGACY_EVENT(                                          \
-      phase, category, name, flags, ::perfetto::legacy::kCurrentThreadId,  \
-      timestamp,                                                           \
-      [&](perfetto::EventContext ctx) PERFETTO_NO_THREAD_SAFETY_ANALYSIS { \
-        using ::perfetto::internal::TrackEventLegacy;                      \
-        TrackEventLegacy::WriteLegacyEvent(std::move(ctx), phase, flags,   \
-                                           ##__VA_ARGS__);                 \
-      })
-
-#define INTERNAL_TRACE_EVENT_ADD_WITH_ID_TID_AND_TIMESTAMP(                  \
-    phase, category, name, id, thread_id, timestamp, flags, ...)             \
-  PERFETTO_INTERNAL_LEGACY_EVENT(                                            \
-      phase, category, name, flags, thread_id, timestamp,                    \
-      [&](perfetto::EventContext ctx) PERFETTO_NO_THREAD_SAFETY_ANALYSIS {   \
-        using ::perfetto::internal::TrackEventLegacy;                        \
-        ::perfetto::internal::LegacyTraceId PERFETTO_UID(trace_id){id};      \
-        TrackEventLegacy::WriteLegacyEventWithIdAndTid(                      \
-            std::move(ctx), phase, flags, PERFETTO_UID(trace_id), thread_id, \
-            ##__VA_ARGS__);                                                  \
-      })
-
-#define INTERNAL_TRACE_EVENT_ADD_WITH_ID(phase, category, name, id, flags, \
-                                         ...)                              \
-  PERFETTO_INTERNAL_LEGACY_EVENT(                                          \
-      phase, category, name, flags, ::perfetto::legacy::kCurrentThreadId,  \
-      [&](perfetto::EventContext ctx) PERFETTO_NO_THREAD_SAFETY_ANALYSIS { \
-        using ::perfetto::internal::TrackEventLegacy;                      \
-        ::perfetto::internal::LegacyTraceId PERFETTO_UID(trace_id){id};    \
-        TrackEventLegacy::WriteLegacyEventWithIdAndTid(                    \
-            std::move(ctx), phase, flags, PERFETTO_UID(trace_id),          \
-            TRACE_EVENT_API_CURRENT_THREAD_ID, ##__VA_ARGS__);             \
-      })
-
-#define INTERNAL_TRACE_EVENT_METADATA_ADD(category, name, ...)         \
-  INTERNAL_TRACE_EVENT_ADD(TRACE_EVENT_PHASE_METADATA, category, name, \
-                           TRACE_EVENT_FLAG_NONE)
-
-// ----------------------------------------------------------------------------
-// Legacy tracing common API (adapted from trace_event_common.h).
-// ----------------------------------------------------------------------------
-
-#define TRACE_DISABLED_BY_DEFAULT(name) "disabled-by-default-" name
-
-// Scoped events.
-#define TRACE_EVENT0(category_group, name) \
-  INTERNAL_TRACE_EVENT_ADD_SCOPED(category_group, name)
-#define TRACE_EVENT_WITH_FLOW0(category_group, name, bind_id, flow_flags)  \
-  INTERNAL_TRACE_EVENT_ADD_SCOPED_WITH_FLOW(category_group, name, bind_id, \
-                                            flow_flags)
-#define TRACE_EVENT1(category_group, name, arg1_name, arg1_val) \
-  INTERNAL_TRACE_EVENT_ADD_SCOPED(category_group, name, arg1_name, arg1_val)
-#define TRACE_EVENT_WITH_FLOW1(category_group, name, bind_id, flow_flags,  \
-                               arg1_name, arg1_val)                        \
-  INTERNAL_TRACE_EVENT_ADD_SCOPED_WITH_FLOW(category_group, name, bind_id, \
-                                            flow_flags, arg1_name, arg1_val)
-#define TRACE_EVENT2(category_group, name, arg1_name, arg1_val, arg2_name,   \
-                     arg2_val)                                               \
-  INTERNAL_TRACE_EVENT_ADD_SCOPED(category_group, name, arg1_name, arg1_val, \
-                                  arg2_name, arg2_val)
-#define TRACE_EVENT_WITH_FLOW2(category_group, name, bind_id, flow_flags,    \
-                               arg1_name, arg1_val, arg2_name, arg2_val)     \
-  INTERNAL_TRACE_EVENT_ADD_SCOPED_WITH_FLOW(category_group, name, bind_id,   \
-                                            flow_flags, arg1_name, arg1_val, \
-                                            arg2_name, arg2_val)
-
-// Instant events.
-#define TRACE_EVENT_INSTANT0(category_group, name, scope)                   \
-  INTERNAL_TRACE_EVENT_ADD(TRACE_EVENT_PHASE_INSTANT, category_group, name, \
-                           TRACE_EVENT_FLAG_NONE | scope)
-#define TRACE_EVENT_INSTANT1(category_group, name, scope, arg1_name, arg1_val) \
-  INTERNAL_TRACE_EVENT_ADD(TRACE_EVENT_PHASE_INSTANT, category_group, name,    \
-                           TRACE_EVENT_FLAG_NONE | scope, arg1_name, arg1_val)
-#define TRACE_EVENT_INSTANT2(category_group, name, scope, arg1_name, arg1_val, \
-                             arg2_name, arg2_val)                              \
-  INTERNAL_TRACE_EVENT_ADD(TRACE_EVENT_PHASE_INSTANT, category_group, name,    \
-                           TRACE_EVENT_FLAG_NONE | scope, arg1_name, arg1_val, \
-                           arg2_name, arg2_val)
-#define TRACE_EVENT_COPY_INSTANT0(category_group, name, scope)              \
-  INTERNAL_TRACE_EVENT_ADD(TRACE_EVENT_PHASE_INSTANT, category_group, name, \
-                           TRACE_EVENT_FLAG_COPY | scope)
-#define TRACE_EVENT_COPY_INSTANT1(category_group, name, scope, arg1_name,   \
-                                  arg1_val)                                 \
-  INTERNAL_TRACE_EVENT_ADD(TRACE_EVENT_PHASE_INSTANT, category_group, name, \
-                           TRACE_EVENT_FLAG_COPY | scope, arg1_name, arg1_val)
-#define TRACE_EVENT_COPY_INSTANT2(category_group, name, scope, arg1_name,      \
-                                  arg1_val, arg2_name, arg2_val)               \
-  INTERNAL_TRACE_EVENT_ADD(TRACE_EVENT_PHASE_INSTANT, category_group, name,    \
-                           TRACE_EVENT_FLAG_COPY | scope, arg1_name, arg1_val, \
-                           arg2_name, arg2_val)
-#define TRACE_EVENT_INSTANT_WITH_FLAGS0(category_group, name, scope_and_flags) \
-  INTERNAL_TRACE_EVENT_ADD(TRACE_EVENT_PHASE_INSTANT, category_group, name,    \
-                           scope_and_flags)
-#define TRACE_EVENT_INSTANT_WITH_FLAGS1(category_group, name, scope_and_flags, \
-                                        arg1_name, arg1_val)                   \
-  INTERNAL_TRACE_EVENT_ADD(TRACE_EVENT_PHASE_INSTANT, category_group, name,    \
-                           scope_and_flags, arg1_name, arg1_val)
-
-// Instant events with explicit timestamps.
-#define TRACE_EVENT_INSTANT_WITH_TIMESTAMP0(category_group, name, scope,   \
-                                            timestamp)                     \
-  INTERNAL_TRACE_EVENT_ADD_WITH_TIMESTAMP(TRACE_EVENT_PHASE_INSTANT,       \
-                                          category_group, name, timestamp, \
-                                          TRACE_EVENT_FLAG_NONE | scope)
-
-#define TRACE_EVENT_INSTANT_WITH_TIMESTAMP1(category_group, name, scope,  \
-                                            timestamp, arg_name, arg_val) \
-  INTERNAL_TRACE_EVENT_ADD_WITH_TIMESTAMP(                                \
-      TRACE_EVENT_PHASE_INSTANT, category_group, name, timestamp,         \
-      TRACE_EVENT_FLAG_NONE | scope, arg_name, arg_val)
-
-// Begin events.
-#define TRACE_EVENT_BEGIN0(category_group, name)                          \
-  INTERNAL_TRACE_EVENT_ADD(TRACE_EVENT_PHASE_BEGIN, category_group, name, \
-                           TRACE_EVENT_FLAG_NONE)
-#define TRACE_EVENT_BEGIN1(category_group, name, arg1_name, arg1_val)     \
-  INTERNAL_TRACE_EVENT_ADD(TRACE_EVENT_PHASE_BEGIN, category_group, name, \
-                           TRACE_EVENT_FLAG_NONE, arg1_name, arg1_val)
-#define TRACE_EVENT_BEGIN2(category_group, name, arg1_name, arg1_val,     \
-                           arg2_name, arg2_val)                           \
-  INTERNAL_TRACE_EVENT_ADD(TRACE_EVENT_PHASE_BEGIN, category_group, name, \
-                           TRACE_EVENT_FLAG_NONE, arg1_name, arg1_val,    \
-                           arg2_name, arg2_val)
-#define TRACE_EVENT_BEGIN_WITH_FLAGS0(category_group, name, flags) \
-  INTERNAL_TRACE_EVENT_ADD(TRACE_EVENT_PHASE_BEGIN, category_group, name, flags)
-#define TRACE_EVENT_BEGIN_WITH_FLAGS1(category_group, name, flags, arg1_name, \
-                                      arg1_val)                               \
-  INTERNAL_TRACE_EVENT_ADD(TRACE_EVENT_PHASE_BEGIN, category_group, name,     \
-                           flags, arg1_name, arg1_val)
-#define TRACE_EVENT_COPY_BEGIN2(category_group, name, arg1_name, arg1_val, \
-                                arg2_name, arg2_val)                       \
-  INTERNAL_TRACE_EVENT_ADD(TRACE_EVENT_PHASE_BEGIN, category_group, name,  \
-                           TRACE_EVENT_FLAG_COPY, arg1_name, arg1_val,     \
-                           arg2_name, arg2_val)
-
-// Begin events with explicit timestamps.
-#define TRACE_EVENT_BEGIN_WITH_ID_TID_AND_TIMESTAMP0(category_group, name, id, \
-                                                     thread_id, timestamp)     \
-  INTERNAL_TRACE_EVENT_ADD_WITH_ID_TID_AND_TIMESTAMP(                          \
-      TRACE_EVENT_PHASE_ASYNC_BEGIN, category_group, name, id, thread_id,      \
-      timestamp, TRACE_EVENT_FLAG_NONE)
-#define TRACE_EVENT_COPY_BEGIN_WITH_ID_TID_AND_TIMESTAMP0(                \
-    category_group, name, id, thread_id, timestamp)                       \
-  INTERNAL_TRACE_EVENT_ADD_WITH_ID_TID_AND_TIMESTAMP(                     \
-      TRACE_EVENT_PHASE_ASYNC_BEGIN, category_group, name, id, thread_id, \
-      timestamp, TRACE_EVENT_FLAG_COPY)
-#define TRACE_EVENT_COPY_BEGIN_WITH_ID_TID_AND_TIMESTAMP1(                \
-    category_group, name, id, thread_id, timestamp, arg1_name, arg1_val)  \
-  INTERNAL_TRACE_EVENT_ADD_WITH_ID_TID_AND_TIMESTAMP(                     \
-      TRACE_EVENT_PHASE_ASYNC_BEGIN, category_group, name, id, thread_id, \
-      timestamp, TRACE_EVENT_FLAG_COPY, arg1_name, arg1_val)
-#define TRACE_EVENT_COPY_BEGIN_WITH_ID_TID_AND_TIMESTAMP2(                \
-    category_group, name, id, thread_id, timestamp, arg1_name, arg1_val,  \
-    arg2_name, arg2_val)                                                  \
-  INTERNAL_TRACE_EVENT_ADD_WITH_ID_TID_AND_TIMESTAMP(                     \
-      TRACE_EVENT_PHASE_ASYNC_BEGIN, category_group, name, id, thread_id, \
-      timestamp, TRACE_EVENT_FLAG_COPY, arg1_name, arg1_val, arg2_name,   \
-      arg2_val)
-
-// End events.
-#define TRACE_EVENT_END0(category_group, name)                          \
-  INTERNAL_TRACE_EVENT_ADD(TRACE_EVENT_PHASE_END, category_group, name, \
-                           TRACE_EVENT_FLAG_NONE)
-#define TRACE_EVENT_END1(category_group, name, arg1_name, arg1_val)     \
-  INTERNAL_TRACE_EVENT_ADD(TRACE_EVENT_PHASE_END, category_group, name, \
-                           TRACE_EVENT_FLAG_NONE, arg1_name, arg1_val)
-#define TRACE_EVENT_END2(category_group, name, arg1_name, arg1_val, arg2_name, \
-                         arg2_val)                                             \
-  INTERNAL_TRACE_EVENT_ADD(TRACE_EVENT_PHASE_END, category_group, name,        \
-                           TRACE_EVENT_FLAG_NONE, arg1_name, arg1_val,         \
-                           arg2_name, arg2_val)
-#define TRACE_EVENT_END_WITH_FLAGS0(category_group, name, flags) \
-  INTERNAL_TRACE_EVENT_ADD(TRACE_EVENT_PHASE_END, category_group, name, flags)
-#define TRACE_EVENT_END_WITH_FLAGS1(category_group, name, flags, arg1_name,    \
-                                    arg1_val)                                  \
-  INTERNAL_TRACE_EVENT_ADD(TRACE_EVENT_PHASE_END, category_group, name, flags, \
-                           arg1_name, arg1_val)
-#define TRACE_EVENT_COPY_END2(category_group, name, arg1_name, arg1_val, \
-                              arg2_name, arg2_val)                       \
-  INTERNAL_TRACE_EVENT_ADD(TRACE_EVENT_PHASE_END, category_group, name,  \
-                           TRACE_EVENT_FLAG_COPY, arg1_name, arg1_val,   \
-                           arg2_name, arg2_val)
-
-// Mark events.
-#define TRACE_EVENT_MARK_WITH_TIMESTAMP0(category_group, name, timestamp)  \
-  INTERNAL_TRACE_EVENT_ADD_WITH_TIMESTAMP(TRACE_EVENT_PHASE_MARK,          \
-                                          category_group, name, timestamp, \
-                                          TRACE_EVENT_FLAG_NONE)
-
-#define TRACE_EVENT_MARK_WITH_TIMESTAMP1(category_group, name, timestamp, \
-                                         arg1_name, arg1_val)             \
-  INTERNAL_TRACE_EVENT_ADD_WITH_TIMESTAMP(                                \
-      TRACE_EVENT_PHASE_MARK, category_group, name, timestamp,            \
-      TRACE_EVENT_FLAG_NONE, arg1_name, arg1_val)
-
-#define TRACE_EVENT_MARK_WITH_TIMESTAMP2(                                      \
-    category_group, name, timestamp, arg1_name, arg1_val, arg2_name, arg2_val) \
-  INTERNAL_TRACE_EVENT_ADD_WITH_TIMESTAMP(                                     \
-      TRACE_EVENT_PHASE_MARK, category_group, name, timestamp,                 \
-      TRACE_EVENT_FLAG_NONE, arg1_name, arg1_val, arg2_name, arg2_val)
-
-#define TRACE_EVENT_COPY_MARK(category_group, name)                      \
-  INTERNAL_TRACE_EVENT_ADD(TRACE_EVENT_PHASE_MARK, category_group, name, \
-                           TRACE_EVENT_FLAG_COPY)
-
-#define TRACE_EVENT_COPY_MARK1(category_group, name, arg1_name, arg1_val) \
-  INTERNAL_TRACE_EVENT_ADD(TRACE_EVENT_PHASE_MARK, category_group, name,  \
-                           TRACE_EVENT_FLAG_COPY, arg1_name, arg1_val)
-
-#define TRACE_EVENT_COPY_MARK_WITH_TIMESTAMP(category_group, name, timestamp) \
-  INTERNAL_TRACE_EVENT_ADD_WITH_TIMESTAMP(TRACE_EVENT_PHASE_MARK,             \
-                                          category_group, name, timestamp,    \
-                                          TRACE_EVENT_FLAG_COPY)
-
-// End events with explicit thread and timestamp.
-#define TRACE_EVENT_END_WITH_ID_TID_AND_TIMESTAMP0(category_group, name, id, \
-                                                   thread_id, timestamp)     \
-  INTERNAL_TRACE_EVENT_ADD_WITH_ID_TID_AND_TIMESTAMP(                        \
-      TRACE_EVENT_PHASE_ASYNC_END, category_group, name, id, thread_id,      \
-      timestamp, TRACE_EVENT_FLAG_NONE)
-#define TRACE_EVENT_COPY_END_WITH_ID_TID_AND_TIMESTAMP0(                \
-    category_group, name, id, thread_id, timestamp)                     \
-  INTERNAL_TRACE_EVENT_ADD_WITH_ID_TID_AND_TIMESTAMP(                   \
-      TRACE_EVENT_PHASE_ASYNC_END, category_group, name, id, thread_id, \
-      timestamp, TRACE_EVENT_FLAG_COPY)
-#define TRACE_EVENT_COPY_END_WITH_ID_TID_AND_TIMESTAMP1(                 \
-    category_group, name, id, thread_id, timestamp, arg1_name, arg1_val) \
-  INTERNAL_TRACE_EVENT_ADD_WITH_ID_TID_AND_TIMESTAMP(                    \
-      TRACE_EVENT_PHASE_ASYNC_END, category_group, name, id, thread_id,  \
-      timestamp, TRACE_EVENT_FLAG_COPY, arg1_name, arg1_val)
-#define TRACE_EVENT_COPY_END_WITH_ID_TID_AND_TIMESTAMP2(                 \
-    category_group, name, id, thread_id, timestamp, arg1_name, arg1_val, \
-    arg2_name, arg2_val)                                                 \
-  INTERNAL_TRACE_EVENT_ADD_WITH_ID_TID_AND_TIMESTAMP(                    \
-      TRACE_EVENT_PHASE_ASYNC_END, category_group, name, id, thread_id,  \
-      timestamp, TRACE_EVENT_FLAG_COPY, arg1_name, arg1_val, arg2_name,  \
-      arg2_val)
-
-// Counters.
-#define TRACE_COUNTER1(category_group, name, value)                         \
-  INTERNAL_TRACE_EVENT_ADD(TRACE_EVENT_PHASE_COUNTER, category_group, name, \
-                           TRACE_EVENT_FLAG_NONE, "value",                  \
-                           static_cast<int>(value))
-#define TRACE_COUNTER_WITH_FLAG1(category_group, name, flag, value)         \
-  INTERNAL_TRACE_EVENT_ADD(TRACE_EVENT_PHASE_COUNTER, category_group, name, \
-                           flag, "value", static_cast<int>(value))
-#define TRACE_COPY_COUNTER1(category_group, name, value)                    \
-  INTERNAL_TRACE_EVENT_ADD(TRACE_EVENT_PHASE_COUNTER, category_group, name, \
-                           TRACE_EVENT_FLAG_COPY, "value",                  \
-                           static_cast<int>(value))
-#define TRACE_COUNTER2(category_group, name, value1_name, value1_val,       \
-                       value2_name, value2_val)                             \
-  INTERNAL_TRACE_EVENT_ADD(TRACE_EVENT_PHASE_COUNTER, category_group, name, \
-                           TRACE_EVENT_FLAG_NONE, value1_name,              \
-                           static_cast<int>(value1_val), value2_name,       \
-                           static_cast<int>(value2_val))
-#define TRACE_COPY_COUNTER2(category_group, name, value1_name, value1_val,  \
-                            value2_name, value2_val)                        \
-  INTERNAL_TRACE_EVENT_ADD(TRACE_EVENT_PHASE_COUNTER, category_group, name, \
-                           TRACE_EVENT_FLAG_COPY, value1_name,              \
-                           static_cast<int>(value1_val), value2_name,       \
-                           static_cast<int>(value2_val))
-
-// Counters with explicit timestamps.
-#define TRACE_COUNTER_WITH_TIMESTAMP1(category_group, name, timestamp, value) \
-  INTERNAL_TRACE_EVENT_ADD_WITH_TIMESTAMP(                                    \
-      TRACE_EVENT_PHASE_COUNTER, category_group, name, timestamp,             \
-      TRACE_EVENT_FLAG_NONE, "value", static_cast<int>(value))
-
-#define TRACE_COUNTER_WITH_TIMESTAMP2(category_group, name, timestamp,      \
-                                      value1_name, value1_val, value2_name, \
-                                      value2_val)                           \
-  INTERNAL_TRACE_EVENT_ADD_WITH_TIMESTAMP(                                  \
-      TRACE_EVENT_PHASE_COUNTER, category_group, name, timestamp,           \
-      TRACE_EVENT_FLAG_NONE, value1_name, static_cast<int>(value1_val),     \
-      value2_name, static_cast<int>(value2_val))
-
-// Counters with ids.
-#define TRACE_COUNTER_ID1(category_group, name, id, value)                    \
-  INTERNAL_TRACE_EVENT_ADD_WITH_ID(TRACE_EVENT_PHASE_COUNTER, category_group, \
-                                   name, id, TRACE_EVENT_FLAG_NONE, "value",  \
-                                   static_cast<int>(value))
-#define TRACE_COPY_COUNTER_ID1(category_group, name, id, value)               \
-  INTERNAL_TRACE_EVENT_ADD_WITH_ID(TRACE_EVENT_PHASE_COUNTER, category_group, \
-                                   name, id, TRACE_EVENT_FLAG_COPY, "value",  \
-                                   static_cast<int>(value))
-#define TRACE_COUNTER_ID2(category_group, name, id, value1_name, value1_val,  \
-                          value2_name, value2_val)                            \
-  INTERNAL_TRACE_EVENT_ADD_WITH_ID(TRACE_EVENT_PHASE_COUNTER, category_group, \
-                                   name, id, TRACE_EVENT_FLAG_NONE,           \
-                                   value1_name, static_cast<int>(value1_val), \
-                                   value2_name, static_cast<int>(value2_val))
-#define TRACE_COPY_COUNTER_ID2(category_group, name, id, value1_name,         \
-                               value1_val, value2_name, value2_val)           \
-  INTERNAL_TRACE_EVENT_ADD_WITH_ID(TRACE_EVENT_PHASE_COUNTER, category_group, \
-                                   name, id, TRACE_EVENT_FLAG_COPY,           \
-                                   value1_name, static_cast<int>(value1_val), \
-                                   value2_name, static_cast<int>(value2_val))
-
-// Sampling profiler events.
-#define TRACE_EVENT_SAMPLE_WITH_ID1(category_group, name, id, arg1_name,       \
-                                    arg1_val)                                  \
-  INTERNAL_TRACE_EVENT_ADD_WITH_ID(TRACE_EVENT_PHASE_SAMPLE, category_group,   \
-                                   name, id, TRACE_EVENT_FLAG_NONE, arg1_name, \
-                                   arg1_val)
-
-// Legacy async events.
-#define TRACE_EVENT_ASYNC_BEGIN0(category_group, name, id)        \
-  INTERNAL_TRACE_EVENT_ADD_WITH_ID(TRACE_EVENT_PHASE_ASYNC_BEGIN, \
-                                   category_group, name, id,      \
-                                   TRACE_EVENT_FLAG_NONE)
-#define TRACE_EVENT_ASYNC_BEGIN1(category_group, name, id, arg1_name, \
-                                 arg1_val)                            \
-  INTERNAL_TRACE_EVENT_ADD_WITH_ID(TRACE_EVENT_PHASE_ASYNC_BEGIN,     \
-                                   category_group, name, id,          \
-                                   TRACE_EVENT_FLAG_NONE, arg1_name, arg1_val)
-#define TRACE_EVENT_ASYNC_BEGIN2(category_group, name, id, arg1_name, \
-                                 arg1_val, arg2_name, arg2_val)       \
-  INTERNAL_TRACE_EVENT_ADD_WITH_ID(                                   \
-      TRACE_EVENT_PHASE_ASYNC_BEGIN, category_group, name, id,        \
-      TRACE_EVENT_FLAG_NONE, arg1_name, arg1_val, arg2_name, arg2_val)
-#define TRACE_EVENT_COPY_ASYNC_BEGIN0(category_group, name, id)   \
-  INTERNAL_TRACE_EVENT_ADD_WITH_ID(TRACE_EVENT_PHASE_ASYNC_BEGIN, \
-                                   category_group, name, id,      \
-                                   TRACE_EVENT_FLAG_COPY)
-#define TRACE_EVENT_COPY_ASYNC_BEGIN1(category_group, name, id, arg1_name, \
-                                      arg1_val)                            \
-  INTERNAL_TRACE_EVENT_ADD_WITH_ID(TRACE_EVENT_PHASE_ASYNC_BEGIN,          \
-                                   category_group, name, id,               \
-                                   TRACE_EVENT_FLAG_COPY, arg1_name, arg1_val)
-#define TRACE_EVENT_COPY_ASYNC_BEGIN2(category_group, name, id, arg1_name, \
-                                      arg1_val, arg2_name, arg2_val)       \
-  INTERNAL_TRACE_EVENT_ADD_WITH_ID(                                        \
-      TRACE_EVENT_PHASE_ASYNC_BEGIN, category_group, name, id,             \
-      TRACE_EVENT_FLAG_COPY, arg1_name, arg1_val, arg2_name, arg2_val)
-#define TRACE_EVENT_ASYNC_BEGIN_WITH_FLAGS0(category_group, name, id, flags) \
-  INTERNAL_TRACE_EVENT_ADD_WITH_ID(TRACE_EVENT_PHASE_ASYNC_BEGIN,            \
-                                   category_group, name, id, flags)
-
-// Legacy async events with explicit timestamps.
-#define TRACE_EVENT_ASYNC_BEGIN_WITH_TIMESTAMP0(category_group, name, id, \
-                                                timestamp)                \
-  INTERNAL_TRACE_EVENT_ADD_WITH_ID_TID_AND_TIMESTAMP(                     \
-      TRACE_EVENT_PHASE_ASYNC_BEGIN, category_group, name, id,            \
-      TRACE_EVENT_API_CURRENT_THREAD_ID, timestamp, TRACE_EVENT_FLAG_NONE)
-#define TRACE_EVENT_ASYNC_BEGIN_WITH_TIMESTAMP1(                           \
-    category_group, name, id, timestamp, arg1_name, arg1_val)              \
-  INTERNAL_TRACE_EVENT_ADD_WITH_ID_TID_AND_TIMESTAMP(                      \
-      TRACE_EVENT_PHASE_ASYNC_BEGIN, category_group, name, id,             \
-      TRACE_EVENT_API_CURRENT_THREAD_ID, timestamp, TRACE_EVENT_FLAG_NONE, \
-      arg1_name, arg1_val)
-#define TRACE_EVENT_ASYNC_BEGIN_WITH_TIMESTAMP2(category_group, name, id,      \
-                                                timestamp, arg1_name,          \
-                                                arg1_val, arg2_name, arg2_val) \
-  INTERNAL_TRACE_EVENT_ADD_WITH_ID_TID_AND_TIMESTAMP(                          \
-      TRACE_EVENT_PHASE_ASYNC_BEGIN, category_group, name, id,                 \
-      TRACE_EVENT_API_CURRENT_THREAD_ID, timestamp, TRACE_EVENT_FLAG_NONE,     \
-      arg1_name, arg1_val, arg2_name, arg2_val)
-#define TRACE_EVENT_COPY_ASYNC_BEGIN_WITH_TIMESTAMP0(category_group, name, id, \
-                                                     timestamp)                \
-  INTERNAL_TRACE_EVENT_ADD_WITH_ID_TID_AND_TIMESTAMP(                          \
-      TRACE_EVENT_PHASE_ASYNC_BEGIN, category_group, name, id,                 \
-      TRACE_EVENT_API_CURRENT_THREAD_ID, timestamp, TRACE_EVENT_FLAG_COPY)
-#define TRACE_EVENT_ASYNC_BEGIN_WITH_TIMESTAMP_AND_FLAGS0(     \
-    category_group, name, id, timestamp, flags)                \
-  INTERNAL_TRACE_EVENT_ADD_WITH_ID_TID_AND_TIMESTAMP(          \
-      TRACE_EVENT_PHASE_ASYNC_BEGIN, category_group, name, id, \
-      TRACE_EVENT_API_CURRENT_THREAD_ID, timestamp, flags)
-
-// Legacy async step into events.
-#define TRACE_EVENT_ASYNC_STEP_INTO0(category_group, name, id, step)  \
-  INTERNAL_TRACE_EVENT_ADD_WITH_ID(TRACE_EVENT_PHASE_ASYNC_STEP_INTO, \
-                                   category_group, name, id,          \
-                                   TRACE_EVENT_FLAG_NONE, "step", step)
-#define TRACE_EVENT_ASYNC_STEP_INTO1(category_group, name, id, step, \
-                                     arg1_name, arg1_val)            \
-  INTERNAL_TRACE_EVENT_ADD_WITH_ID(                                  \
-      TRACE_EVENT_PHASE_ASYNC_STEP_INTO, category_group, name, id,   \
-      TRACE_EVENT_FLAG_NONE, "step", step, arg1_name, arg1_val)
-
-// Legacy async step into events with timestamps.
-#define TRACE_EVENT_ASYNC_STEP_INTO_WITH_TIMESTAMP0(category_group, name, id, \
-                                                    step, timestamp)          \
-  INTERNAL_TRACE_EVENT_ADD_WITH_ID_TID_AND_TIMESTAMP(                         \
-      TRACE_EVENT_PHASE_ASYNC_STEP_INTO, category_group, name, id,            \
-      TRACE_EVENT_API_CURRENT_THREAD_ID, timestamp, TRACE_EVENT_FLAG_NONE,    \
-      "step", step)
-
-// Legacy async step past events.
-#define TRACE_EVENT_ASYNC_STEP_PAST0(category_group, name, id, step)  \
-  INTERNAL_TRACE_EVENT_ADD_WITH_ID(TRACE_EVENT_PHASE_ASYNC_STEP_PAST, \
-                                   category_group, name, id,          \
-                                   TRACE_EVENT_FLAG_NONE, "step", step)
-#define TRACE_EVENT_ASYNC_STEP_PAST1(category_group, name, id, step, \
-                                     arg1_name, arg1_val)            \
-  INTERNAL_TRACE_EVENT_ADD_WITH_ID(                                  \
-      TRACE_EVENT_PHASE_ASYNC_STEP_PAST, category_group, name, id,   \
-      TRACE_EVENT_FLAG_NONE, "step", step, arg1_name, arg1_val)
-
-// Legacy async end events.
-#define TRACE_EVENT_ASYNC_END0(category_group, name, id)        \
-  INTERNAL_TRACE_EVENT_ADD_WITH_ID(TRACE_EVENT_PHASE_ASYNC_END, \
-                                   category_group, name, id,    \
-                                   TRACE_EVENT_FLAG_NONE)
-#define TRACE_EVENT_ASYNC_END1(category_group, name, id, arg1_name, arg1_val) \
-  INTERNAL_TRACE_EVENT_ADD_WITH_ID(TRACE_EVENT_PHASE_ASYNC_END,               \
-                                   category_group, name, id,                  \
-                                   TRACE_EVENT_FLAG_NONE, arg1_name, arg1_val)
-#define TRACE_EVENT_ASYNC_END2(category_group, name, id, arg1_name, arg1_val, \
-                               arg2_name, arg2_val)                           \
-  INTERNAL_TRACE_EVENT_ADD_WITH_ID(                                           \
-      TRACE_EVENT_PHASE_ASYNC_END, category_group, name, id,                  \
-      TRACE_EVENT_FLAG_NONE, arg1_name, arg1_val, arg2_name, arg2_val)
-#define TRACE_EVENT_COPY_ASYNC_END0(category_group, name, id)   \
-  INTERNAL_TRACE_EVENT_ADD_WITH_ID(TRACE_EVENT_PHASE_ASYNC_END, \
-                                   category_group, name, id,    \
-                                   TRACE_EVENT_FLAG_COPY)
-#define TRACE_EVENT_COPY_ASYNC_END1(category_group, name, id, arg1_name, \
-                                    arg1_val)                            \
-  INTERNAL_TRACE_EVENT_ADD_WITH_ID(TRACE_EVENT_PHASE_ASYNC_END,          \
-                                   category_group, name, id,             \
-                                   TRACE_EVENT_FLAG_COPY, arg1_name, arg1_val)
-#define TRACE_EVENT_COPY_ASYNC_END2(category_group, name, id, arg1_name, \
-                                    arg1_val, arg2_name, arg2_val)       \
-  INTERNAL_TRACE_EVENT_ADD_WITH_ID(                                      \
-      TRACE_EVENT_PHASE_ASYNC_END, category_group, name, id,             \
-      TRACE_EVENT_FLAG_COPY, arg1_name, arg1_val, arg2_name, arg2_val)
-#define TRACE_EVENT_ASYNC_END_WITH_FLAGS0(category_group, name, id, flags) \
-  INTERNAL_TRACE_EVENT_ADD_WITH_ID(TRACE_EVENT_PHASE_ASYNC_END,            \
-                                   category_group, name, id, flags)
-
-// Legacy async end events with explicit timestamps.
-#define TRACE_EVENT_ASYNC_END_WITH_TIMESTAMP0(category_group, name, id, \
-                                              timestamp)                \
-  INTERNAL_TRACE_EVENT_ADD_WITH_ID_TID_AND_TIMESTAMP(                   \
-      TRACE_EVENT_PHASE_ASYNC_END, category_group, name, id,            \
-      TRACE_EVENT_API_CURRENT_THREAD_ID, timestamp, TRACE_EVENT_FLAG_NONE)
-#define TRACE_EVENT_ASYNC_END_WITH_TIMESTAMP1(category_group, name, id,       \
-                                              timestamp, arg1_name, arg1_val) \
-  INTERNAL_TRACE_EVENT_ADD_WITH_ID_TID_AND_TIMESTAMP(                         \
-      TRACE_EVENT_PHASE_ASYNC_END, category_group, name, id,                  \
-      TRACE_EVENT_API_CURRENT_THREAD_ID, timestamp, TRACE_EVENT_FLAG_NONE,    \
-      arg1_name, arg1_val)
-#define TRACE_EVENT_ASYNC_END_WITH_TIMESTAMP2(category_group, name, id,       \
-                                              timestamp, arg1_name, arg1_val, \
-                                              arg2_name, arg2_val)            \
-  INTERNAL_TRACE_EVENT_ADD_WITH_ID_TID_AND_TIMESTAMP(                         \
-      TRACE_EVENT_PHASE_ASYNC_END, category_group, name, id,                  \
-      TRACE_EVENT_API_CURRENT_THREAD_ID, timestamp, TRACE_EVENT_FLAG_NONE,    \
-      arg1_name, arg1_val, arg2_name, arg2_val)
-#define TRACE_EVENT_COPY_ASYNC_END_WITH_TIMESTAMP0(category_group, name, id, \
-                                                   timestamp)                \
-  INTERNAL_TRACE_EVENT_ADD_WITH_ID_TID_AND_TIMESTAMP(                        \
-      TRACE_EVENT_PHASE_ASYNC_END, category_group, name, id,                 \
-      TRACE_EVENT_API_CURRENT_THREAD_ID, timestamp, TRACE_EVENT_FLAG_COPY)
-#define TRACE_EVENT_ASYNC_END_WITH_TIMESTAMP_AND_FLAGS0(category_group, name, \
-                                                        id, timestamp, flags) \
-  INTERNAL_TRACE_EVENT_ADD_WITH_ID_TID_AND_TIMESTAMP(                         \
-      TRACE_EVENT_PHASE_ASYNC_END, category_group, name, id,                  \
-      TRACE_EVENT_API_CURRENT_THREAD_ID, timestamp, flags)
-
-// Async events.
-#define TRACE_EVENT_NESTABLE_ASYNC_BEGIN0(category_group, name, id)        \
-  INTERNAL_TRACE_EVENT_ADD_WITH_ID(TRACE_EVENT_PHASE_NESTABLE_ASYNC_BEGIN, \
-                                   category_group, name, id,               \
-                                   TRACE_EVENT_FLAG_NONE)
-#define TRACE_EVENT_NESTABLE_ASYNC_BEGIN1(category_group, name, id, arg1_name, \
-                                          arg1_val)                            \
-  INTERNAL_TRACE_EVENT_ADD_WITH_ID(TRACE_EVENT_PHASE_NESTABLE_ASYNC_BEGIN,     \
-                                   category_group, name, id,                   \
-                                   TRACE_EVENT_FLAG_NONE, arg1_name, arg1_val)
-#define TRACE_EVENT_NESTABLE_ASYNC_BEGIN2(category_group, name, id, arg1_name, \
-                                          arg1_val, arg2_name, arg2_val)       \
-  INTERNAL_TRACE_EVENT_ADD_WITH_ID(                                            \
-      TRACE_EVENT_PHASE_NESTABLE_ASYNC_BEGIN, category_group, name, id,        \
-      TRACE_EVENT_FLAG_NONE, arg1_name, arg1_val, arg2_name, arg2_val)
-#define TRACE_EVENT_NESTABLE_ASYNC_BEGIN_WITH_TIMESTAMP1(                  \
-    category_group, name, id, timestamp, arg1_name, arg1_val)              \
-  INTERNAL_TRACE_EVENT_ADD_WITH_ID_TID_AND_TIMESTAMP(                      \
-      TRACE_EVENT_PHASE_NESTABLE_ASYNC_BEGIN, category_group, name, id,    \
-      TRACE_EVENT_API_CURRENT_THREAD_ID, timestamp, TRACE_EVENT_FLAG_NONE, \
-      arg1_name, arg1_val)
-
-// Async end events.
-#define TRACE_EVENT_NESTABLE_ASYNC_END0(category_group, name, id)        \
-  INTERNAL_TRACE_EVENT_ADD_WITH_ID(TRACE_EVENT_PHASE_NESTABLE_ASYNC_END, \
-                                   category_group, name, id,             \
-                                   TRACE_EVENT_FLAG_NONE)
-#define TRACE_EVENT_NESTABLE_ASYNC_END1(category_group, name, id, arg1_name, \
-                                        arg1_val)                            \
-  INTERNAL_TRACE_EVENT_ADD_WITH_ID(TRACE_EVENT_PHASE_NESTABLE_ASYNC_END,     \
-                                   category_group, name, id,                 \
-                                   TRACE_EVENT_FLAG_NONE, arg1_name, arg1_val)
-#define TRACE_EVENT_NESTABLE_ASYNC_END2(category_group, name, id, arg1_name, \
-                                        arg1_val, arg2_name, arg2_val)       \
-  INTERNAL_TRACE_EVENT_ADD_WITH_ID(                                          \
-      TRACE_EVENT_PHASE_NESTABLE_ASYNC_END, category_group, name, id,        \
-      TRACE_EVENT_FLAG_NONE, arg1_name, arg1_val, arg2_name, arg2_val)
-
-// Async instant events.
-#define TRACE_EVENT_NESTABLE_ASYNC_INSTANT0(category_group, name, id)        \
-  INTERNAL_TRACE_EVENT_ADD_WITH_ID(TRACE_EVENT_PHASE_NESTABLE_ASYNC_INSTANT, \
-                                   category_group, name, id,                 \
-                                   TRACE_EVENT_FLAG_NONE)
-#define TRACE_EVENT_NESTABLE_ASYNC_INSTANT1(category_group, name, id,        \
-                                            arg1_name, arg1_val)             \
-  INTERNAL_TRACE_EVENT_ADD_WITH_ID(TRACE_EVENT_PHASE_NESTABLE_ASYNC_INSTANT, \
-                                   category_group, name, id,                 \
-                                   TRACE_EVENT_FLAG_NONE, arg1_name, arg1_val)
-#define TRACE_EVENT_NESTABLE_ASYNC_INSTANT2(                              \
-    category_group, name, id, arg1_name, arg1_val, arg2_name, arg2_val)   \
-  INTERNAL_TRACE_EVENT_ADD_WITH_ID(                                       \
-      TRACE_EVENT_PHASE_NESTABLE_ASYNC_INSTANT, category_group, name, id, \
-      TRACE_EVENT_FLAG_NONE, arg1_name, arg1_val, arg2_name, arg2_val)
-#define TRACE_EVENT_COPY_NESTABLE_ASYNC_BEGIN_WITH_TTS2(                       \
-    category_group, name, id, arg1_name, arg1_val, arg2_name, arg2_val)        \
-  INTERNAL_TRACE_EVENT_ADD_WITH_ID(                                            \
-      TRACE_EVENT_PHASE_NESTABLE_ASYNC_BEGIN, category_group, name, id,        \
-      TRACE_EVENT_FLAG_ASYNC_TTS | TRACE_EVENT_FLAG_COPY, arg1_name, arg1_val, \
-      arg2_name, arg2_val)
-#define TRACE_EVENT_COPY_NESTABLE_ASYNC_END_WITH_TTS2(                         \
-    category_group, name, id, arg1_name, arg1_val, arg2_name, arg2_val)        \
-  INTERNAL_TRACE_EVENT_ADD_WITH_ID(                                            \
-      TRACE_EVENT_PHASE_NESTABLE_ASYNC_END, category_group, name, id,          \
-      TRACE_EVENT_FLAG_ASYNC_TTS | TRACE_EVENT_FLAG_COPY, arg1_name, arg1_val, \
-      arg2_name, arg2_val)
-
-// Async events with explicit timestamps.
-#define TRACE_EVENT_NESTABLE_ASYNC_BEGIN_WITH_TIMESTAMP0(category_group, name, \
-                                                         id, timestamp)        \
-  INTERNAL_TRACE_EVENT_ADD_WITH_ID_TID_AND_TIMESTAMP(                          \
-      TRACE_EVENT_PHASE_NESTABLE_ASYNC_BEGIN, category_group, name, id,        \
-      TRACE_EVENT_API_CURRENT_THREAD_ID, timestamp, TRACE_EVENT_FLAG_NONE)
-#define TRACE_EVENT_NESTABLE_ASYNC_END_WITH_TIMESTAMP0(category_group, name, \
-                                                       id, timestamp)        \
-  INTERNAL_TRACE_EVENT_ADD_WITH_ID_TID_AND_TIMESTAMP(                        \
-      TRACE_EVENT_PHASE_NESTABLE_ASYNC_END, category_group, name, id,        \
-      TRACE_EVENT_API_CURRENT_THREAD_ID, timestamp, TRACE_EVENT_FLAG_NONE)
-#define TRACE_EVENT_NESTABLE_ASYNC_END_WITH_TIMESTAMP1(                    \
-    category_group, name, id, timestamp, arg1_name, arg1_val)              \
-  INTERNAL_TRACE_EVENT_ADD_WITH_ID_TID_AND_TIMESTAMP(                      \
-      TRACE_EVENT_PHASE_NESTABLE_ASYNC_END, category_group, name, id,      \
-      TRACE_EVENT_API_CURRENT_THREAD_ID, timestamp, TRACE_EVENT_FLAG_NONE, \
-      arg1_name, arg1_val)
-#define TRACE_EVENT_NESTABLE_ASYNC_INSTANT_WITH_TIMESTAMP0(               \
-    category_group, name, id, timestamp)                                  \
-  INTERNAL_TRACE_EVENT_ADD_WITH_ID_TID_AND_TIMESTAMP(                     \
-      TRACE_EVENT_PHASE_NESTABLE_ASYNC_INSTANT, category_group, name, id, \
-      TRACE_EVENT_API_CURRENT_THREAD_ID, timestamp, TRACE_EVENT_FLAG_NONE)
-#define TRACE_EVENT_COPY_NESTABLE_ASYNC_BEGIN0(category_group, name, id)   \
-  INTERNAL_TRACE_EVENT_ADD_WITH_ID(TRACE_EVENT_PHASE_NESTABLE_ASYNC_BEGIN, \
-                                   category_group, name, id,               \
-                                   TRACE_EVENT_FLAG_COPY)
-#define TRACE_EVENT_COPY_NESTABLE_ASYNC_END0(category_group, name, id)   \
-  INTERNAL_TRACE_EVENT_ADD_WITH_ID(TRACE_EVENT_PHASE_NESTABLE_ASYNC_END, \
-                                   category_group, name, id,             \
-                                   TRACE_EVENT_FLAG_COPY)
-#define TRACE_EVENT_COPY_NESTABLE_ASYNC_BEGIN_WITH_TIMESTAMP0(          \
-    category_group, name, id, timestamp)                                \
-  INTERNAL_TRACE_EVENT_ADD_WITH_ID_TID_AND_TIMESTAMP(                   \
-      TRACE_EVENT_PHASE_NESTABLE_ASYNC_BEGIN, category_group, name, id, \
-      TRACE_EVENT_API_CURRENT_THREAD_ID, timestamp, TRACE_EVENT_FLAG_COPY)
-#define TRACE_EVENT_COPY_NESTABLE_ASYNC_END_WITH_TIMESTAMP0(          \
-    category_group, name, id, timestamp)                              \
-  INTERNAL_TRACE_EVENT_ADD_WITH_ID_TID_AND_TIMESTAMP(                 \
-      TRACE_EVENT_PHASE_NESTABLE_ASYNC_END, category_group, name, id, \
-      TRACE_EVENT_API_CURRENT_THREAD_ID, timestamp, TRACE_EVENT_FLAG_COPY)
-#define TRACE_EVENT_NESTABLE_ASYNC_END_WITH_TIMESTAMP2(                    \
-    category_group, name, id, timestamp, arg1_name, arg1_val, arg2_name,   \
-    arg2_val)                                                              \
-  INTERNAL_TRACE_EVENT_ADD_WITH_ID_TID_AND_TIMESTAMP(                      \
-      TRACE_EVENT_PHASE_NESTABLE_ASYNC_END, category_group, name, id,      \
-      TRACE_EVENT_API_CURRENT_THREAD_ID, timestamp, TRACE_EVENT_FLAG_NONE, \
-      arg1_name, arg1_val, arg2_name, arg2_val)
-
-// Metadata events.
-#define TRACE_EVENT_METADATA1(category_group, name, arg1_name, arg1_val) \
-  INTERNAL_TRACE_EVENT_METADATA_ADD(category_group, name, arg1_name, arg1_val)
-
-// Clock sync events.
-#define TRACE_EVENT_CLOCK_SYNC_RECEIVER(sync_id)                           \
-  INTERNAL_TRACE_EVENT_ADD(TRACE_EVENT_PHASE_CLOCK_SYNC, "__metadata",     \
-                           "clock_sync", TRACE_EVENT_FLAG_NONE, "sync_id", \
-                           sync_id)
-#define TRACE_EVENT_CLOCK_SYNC_ISSUER(sync_id, issue_ts, issue_end_ts)        \
-  INTERNAL_TRACE_EVENT_ADD_WITH_TIMESTAMP(                                    \
-      TRACE_EVENT_PHASE_CLOCK_SYNC, "__metadata", "clock_sync", issue_end_ts, \
-      TRACE_EVENT_FLAG_NONE, "sync_id", sync_id, "issue_ts", issue_ts)
-
-// Object events.
-#define TRACE_EVENT_OBJECT_CREATED_WITH_ID(category_group, name, id) \
-  INTERNAL_TRACE_EVENT_ADD_WITH_ID(TRACE_EVENT_PHASE_CREATE_OBJECT,  \
-                                   category_group, name, id,         \
-                                   TRACE_EVENT_FLAG_NONE)
-
-#define TRACE_EVENT_OBJECT_SNAPSHOT_WITH_ID(category_group, name, id, \
-                                            snapshot)                 \
-  INTERNAL_TRACE_EVENT_ADD_WITH_ID(                                   \
-      TRACE_EVENT_PHASE_SNAPSHOT_OBJECT, category_group, name, id,    \
-      TRACE_EVENT_FLAG_NONE, "snapshot", snapshot)
-
-#define TRACE_EVENT_OBJECT_SNAPSHOT_WITH_ID_AND_TIMESTAMP(                 \
-    category_group, name, id, timestamp, snapshot)                         \
-  INTERNAL_TRACE_EVENT_ADD_WITH_ID_TID_AND_TIMESTAMP(                      \
-      TRACE_EVENT_PHASE_SNAPSHOT_OBJECT, category_group, name, id,         \
-      TRACE_EVENT_API_CURRENT_THREAD_ID, timestamp, TRACE_EVENT_FLAG_NONE, \
-      "snapshot", snapshot)
-
-#define TRACE_EVENT_OBJECT_DELETED_WITH_ID(category_group, name, id) \
-  INTERNAL_TRACE_EVENT_ADD_WITH_ID(TRACE_EVENT_PHASE_DELETE_OBJECT,  \
-                                   category_group, name, id,         \
-                                   TRACE_EVENT_FLAG_NONE)
-
-// Context events.
-#define TRACE_EVENT_ENTER_CONTEXT(category_group, name, context)    \
-  INTERNAL_TRACE_EVENT_ADD_WITH_ID(TRACE_EVENT_PHASE_ENTER_CONTEXT, \
-                                   category_group, name, context,   \
-                                   TRACE_EVENT_FLAG_NONE)
-#define TRACE_EVENT_LEAVE_CONTEXT(category_group, name, context)    \
-  INTERNAL_TRACE_EVENT_ADD_WITH_ID(TRACE_EVENT_PHASE_LEAVE_CONTEXT, \
-                                   category_group, name, context,   \
-                                   TRACE_EVENT_FLAG_NONE)
-
-// TODO(skyostil): Implement binary-efficient trace events.
-#define TRACE_EVENT_BINARY_EFFICIENT0 TRACE_EVENT0
-#define TRACE_EVENT_BINARY_EFFICIENT1 TRACE_EVENT1
-#define TRACE_EVENT_BINARY_EFFICIENT2 TRACE_EVENT2
-
-// Macro to efficiently determine if a given category group is enabled.
-#define TRACE_EVENT_CATEGORY_GROUP_ENABLED(category, ret) \
-  do {                                                    \
-    *ret = TRACE_EVENT_CATEGORY_ENABLED(category);        \
-  } while (0)
-
-// Macro to efficiently determine, through polling, if a new trace has begun.
-#define TRACE_EVENT_IS_NEW_TRACE(ret)                                \
-  do {                                                               \
-    static int PERFETTO_UID(prev) = -1;                              \
-    int PERFETTO_UID(curr) =                                         \
-        ::perfetto::internal::TrackEventInternal::GetSessionCount(); \
-    if (::PERFETTO_TRACK_EVENT_NAMESPACE::TrackEvent::IsEnabled() && \
-        (PERFETTO_UID(prev) != PERFETTO_UID(curr))) {                \
-      *(ret) = true;                                                 \
-      PERFETTO_UID(prev) = PERFETTO_UID(curr);                       \
-    } else {                                                         \
-      *(ret) = false;                                                \
-    }                                                                \
-  } while (0)
-
-// ----------------------------------------------------------------------------
-// Legacy tracing API (adapted from trace_event.h).
-// ----------------------------------------------------------------------------
-
-// We can implement the following subset of the legacy tracing API without
-// involvement from the embedder. APIs such as TRACE_EVENT_API_ADD_TRACE_EVENT
-// are still up to the embedder to define.
-
-#define TRACE_STR_COPY(str) (str)
-
-#define TRACE_ID_WITH_SCOPE(scope, ...) \
-  ::perfetto::internal::LegacyTraceId::WithScope(scope, ##__VA_ARGS__)
-
-// Use this for ids that are unique across processes. This allows different
-// processes to use the same id to refer to the same event.
-#define TRACE_ID_GLOBAL(id) ::perfetto::internal::LegacyTraceId::GlobalId(id)
-
-// Use this for ids that are unique within a single process. This allows
-// different processes to use the same id to refer to different events.
-#define TRACE_ID_LOCAL(id) ::perfetto::internal::LegacyTraceId::LocalId(id)
-
-// Returns a pointer to a uint8_t which indicates whether tracing is enabled for
-// the given category or not. A zero value means tracing is disabled and
-// non-zero indicates at least one tracing session for this category is active.
-// Note that callers should not make any assumptions at what each bit represents
-// in the status byte. Does not support dynamic categories.
-#define TRACE_EVENT_API_GET_CATEGORY_GROUP_ENABLED(category)                \
-  reinterpret_cast<const uint8_t*>(                                         \
-      [&] {                                                                 \
-        static_assert(                                                      \
-            !std::is_same<::perfetto::DynamicCategory,                      \
-                          decltype(category)>::value,                       \
-            "Enabled flag pointers are not supported for dynamic trace "    \
-            "categories.");                                                 \
-      },                                                                    \
-      PERFETTO_TRACK_EVENT_NAMESPACE::internal::kConstExprCategoryRegistry  \
-          .GetCategoryState(                                                \
-              ::PERFETTO_TRACK_EVENT_NAMESPACE::internal::kCategoryRegistry \
-                  .Find(category, /*is_dynamic=*/false)))
-
-// Given a pointer returned by TRACE_EVENT_API_GET_CATEGORY_GROUP_ENABLED,
-// yields a pointer to the name of the corresponding category group.
-#define TRACE_EVENT_API_GET_CATEGORY_GROUP_NAME(category_enabled_ptr)       \
-  ::PERFETTO_TRACK_EVENT_NAMESPACE::internal::kConstExprCategoryRegistry    \
-      .GetCategory(                                                         \
-          category_enabled_ptr -                                            \
-          reinterpret_cast<const uint8_t*>(                                 \
-              ::PERFETTO_TRACK_EVENT_NAMESPACE::internal::kCategoryRegistry \
-                  .GetCategoryState(0u)))                                   \
-      ->name
-
-#endif  // PERFETTO_ENABLE_LEGACY_TRACE_EVENTS
-
-#endif  // INCLUDE_PERFETTO_TRACING_TRACK_EVENT_LEGACY_H_
-/*
- * Copyright (C) 2019 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef INCLUDE_PERFETTO_TRACING_H_
-#define INCLUDE_PERFETTO_TRACING_H_
-
-// This headers wraps all the headers necessary to use the public Perfetto
-// Tracing API. Embedders should preferably use this one header to avoid having
-// to figure out the various set of header required for each class.
-// The only exception to this should be large projects where build time is a
-// concern (e.g. chromium), which migh prefer sticking to strict IWYU.
-
-// gen_amalgamated expanded: #include "perfetto/tracing/buffer_exhausted_policy.h"
-// gen_amalgamated expanded: #include "perfetto/tracing/console_interceptor.h"
-// gen_amalgamated expanded: #include "perfetto/tracing/core/data_source_config.h"
-// gen_amalgamated expanded: #include "perfetto/tracing/core/data_source_descriptor.h"
-// gen_amalgamated expanded: #include "perfetto/tracing/core/trace_config.h"
-// gen_amalgamated expanded: #include "perfetto/tracing/data_source.h"
-// gen_amalgamated expanded: #include "perfetto/tracing/interceptor.h"
-// gen_amalgamated expanded: #include "perfetto/tracing/platform.h"
-// gen_amalgamated expanded: #include "perfetto/tracing/tracing.h"
-// gen_amalgamated expanded: #include "perfetto/tracing/tracing_backend.h"
-// gen_amalgamated expanded: #include "perfetto/tracing/track_event.h"
-// gen_amalgamated expanded: #include "perfetto/tracing/track_event_interned_data_index.h"
-// gen_amalgamated expanded: #include "perfetto/tracing/track_event_legacy.h"
-// gen_amalgamated expanded: #include "perfetto/tracing/track_event_state_tracker.h"
-
-#endif  // INCLUDE_PERFETTO_TRACING_H_
-// gen_amalgamated begin header: gen/protos/perfetto/common/android_energy_consumer_descriptor.gen.h
-// DO NOT EDIT. Autogenerated by Perfetto cppgen_plugin
-#ifndef PERFETTO_PROTOS_PROTOS_PERFETTO_COMMON_ANDROID_ENERGY_CONSUMER_DESCRIPTOR_PROTO_CPP_H_
-#define PERFETTO_PROTOS_PROTOS_PERFETTO_COMMON_ANDROID_ENERGY_CONSUMER_DESCRIPTOR_PROTO_CPP_H_
-
-#include <stdint.h>
-#include <bitset>
-#include <vector>
-#include <string>
-#include <type_traits>
-
-// gen_amalgamated expanded: #include "perfetto/protozero/cpp_message_obj.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/copyable_ptr.h"
-// gen_amalgamated expanded: #include "perfetto/base/export.h"
-
-namespace perfetto {
-namespace protos {
-namespace gen {
-class AndroidEnergyConsumerDescriptor;
-class AndroidEnergyConsumer;
-}  // namespace perfetto
-}  // namespace protos
-}  // namespace gen
-
-namespace protozero {
-class Message;
-}  // namespace protozero
-
-namespace perfetto {
-namespace protos {
-namespace gen {
-
-class PERFETTO_EXPORT AndroidEnergyConsumerDescriptor : public ::protozero::CppMessageObj {
- public:
-  enum FieldNumbers {
-    kEnergyConsumersFieldNumber = 1,
-  };
-
-  AndroidEnergyConsumerDescriptor();
-  ~AndroidEnergyConsumerDescriptor() override;
-  AndroidEnergyConsumerDescriptor(AndroidEnergyConsumerDescriptor&&) noexcept;
-  AndroidEnergyConsumerDescriptor& operator=(AndroidEnergyConsumerDescriptor&&);
-  AndroidEnergyConsumerDescriptor(const AndroidEnergyConsumerDescriptor&);
-  AndroidEnergyConsumerDescriptor& operator=(const AndroidEnergyConsumerDescriptor&);
-  bool operator==(const AndroidEnergyConsumerDescriptor&) const;
-  bool operator!=(const AndroidEnergyConsumerDescriptor& other) const { return !(*this == other); }
-
-  bool ParseFromArray(const void*, size_t) override;
-  std::string SerializeAsString() const override;
-  std::vector<uint8_t> SerializeAsArray() const override;
-  void Serialize(::protozero::Message*) const;
-
-  const std::vector<AndroidEnergyConsumer>& energy_consumers() const { return energy_consumers_; }
-  std::vector<AndroidEnergyConsumer>* mutable_energy_consumers() { return &energy_consumers_; }
-  int energy_consumers_size() const;
-  void clear_energy_consumers();
-  AndroidEnergyConsumer* add_energy_consumers();
-
- private:
-  std::vector<AndroidEnergyConsumer> energy_consumers_;
-
-  // Allows to preserve unknown protobuf fields for compatibility
-  // with future versions of .proto files.
-  std::string unknown_fields_;
-
-  std::bitset<2> _has_field_{};
-};
-
-
-class PERFETTO_EXPORT AndroidEnergyConsumer : public ::protozero::CppMessageObj {
- public:
-  enum FieldNumbers {
-    kEnergyConsumerIdFieldNumber = 1,
-    kOrdinalFieldNumber = 2,
-    kTypeFieldNumber = 3,
-    kNameFieldNumber = 4,
-  };
-
-  AndroidEnergyConsumer();
-  ~AndroidEnergyConsumer() override;
-  AndroidEnergyConsumer(AndroidEnergyConsumer&&) noexcept;
-  AndroidEnergyConsumer& operator=(AndroidEnergyConsumer&&);
-  AndroidEnergyConsumer(const AndroidEnergyConsumer&);
-  AndroidEnergyConsumer& operator=(const AndroidEnergyConsumer&);
-  bool operator==(const AndroidEnergyConsumer&) const;
-  bool operator!=(const AndroidEnergyConsumer& other) const { return !(*this == other); }
-
-  bool ParseFromArray(const void*, size_t) override;
-  std::string SerializeAsString() const override;
-  std::vector<uint8_t> SerializeAsArray() const override;
-  void Serialize(::protozero::Message*) const;
-
-  bool has_energy_consumer_id() const { return _has_field_[1]; }
-  int32_t energy_consumer_id() const { return energy_consumer_id_; }
-  void set_energy_consumer_id(int32_t value) { energy_consumer_id_ = value; _has_field_.set(1); }
-
-  bool has_ordinal() const { return _has_field_[2]; }
-  int32_t ordinal() const { return ordinal_; }
-  void set_ordinal(int32_t value) { ordinal_ = value; _has_field_.set(2); }
-
-  bool has_type() const { return _has_field_[3]; }
-  const std::string& type() const { return type_; }
-  void set_type(const std::string& value) { type_ = value; _has_field_.set(3); }
-
-  bool has_name() const { return _has_field_[4]; }
-  const std::string& name() const { return name_; }
-  void set_name(const std::string& value) { name_ = value; _has_field_.set(4); }
-
- private:
-  int32_t energy_consumer_id_{};
-  int32_t ordinal_{};
-  std::string type_{};
-  std::string name_{};
-
-  // Allows to preserve unknown protobuf fields for compatibility
-  // with future versions of .proto files.
-  std::string unknown_fields_;
-
-  std::bitset<5> _has_field_{};
-};
-
-}  // namespace perfetto
-}  // namespace protos
-}  // namespace gen
-
-#endif  // PERFETTO_PROTOS_PROTOS_PERFETTO_COMMON_ANDROID_ENERGY_CONSUMER_DESCRIPTOR_PROTO_CPP_H_
-// gen_amalgamated begin header: gen/protos/perfetto/common/android_log_constants.gen.h
-// DO NOT EDIT. Autogenerated by Perfetto cppgen_plugin
-#ifndef PERFETTO_PROTOS_PROTOS_PERFETTO_COMMON_ANDROID_LOG_CONSTANTS_PROTO_CPP_H_
-#define PERFETTO_PROTOS_PROTOS_PERFETTO_COMMON_ANDROID_LOG_CONSTANTS_PROTO_CPP_H_
-
-#include <stdint.h>
-#include <bitset>
-#include <vector>
-#include <string>
-#include <type_traits>
-
-// gen_amalgamated expanded: #include "perfetto/protozero/cpp_message_obj.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/copyable_ptr.h"
-// gen_amalgamated expanded: #include "perfetto/base/export.h"
-
-namespace perfetto {
-namespace protos {
-namespace gen {
-enum AndroidLogId : int;
-enum AndroidLogPriority : int;
-}  // namespace perfetto
-}  // namespace protos
-}  // namespace gen
-
-namespace protozero {
-class Message;
-}  // namespace protozero
-
-namespace perfetto {
-namespace protos {
-namespace gen {
-enum AndroidLogId : int {
-  LID_DEFAULT = 0,
-  LID_RADIO = 1,
-  LID_EVENTS = 2,
-  LID_SYSTEM = 3,
-  LID_CRASH = 4,
-  LID_STATS = 5,
-  LID_SECURITY = 6,
-  LID_KERNEL = 7,
-};
-enum AndroidLogPriority : int {
-  PRIO_UNSPECIFIED = 0,
-  PRIO_UNUSED = 1,
-  PRIO_VERBOSE = 2,
-  PRIO_DEBUG = 3,
-  PRIO_INFO = 4,
-  PRIO_WARN = 5,
-  PRIO_ERROR = 6,
-  PRIO_FATAL = 7,
-};
-}  // namespace perfetto
-}  // namespace protos
-}  // namespace gen
-
-#endif  // PERFETTO_PROTOS_PROTOS_PERFETTO_COMMON_ANDROID_LOG_CONSTANTS_PROTO_CPP_H_
-// gen_amalgamated begin header: gen/protos/perfetto/common/builtin_clock.gen.h
-// DO NOT EDIT. Autogenerated by Perfetto cppgen_plugin
-#ifndef PERFETTO_PROTOS_PROTOS_PERFETTO_COMMON_BUILTIN_CLOCK_PROTO_CPP_H_
-#define PERFETTO_PROTOS_PROTOS_PERFETTO_COMMON_BUILTIN_CLOCK_PROTO_CPP_H_
-
-#include <stdint.h>
-#include <bitset>
-#include <vector>
-#include <string>
-#include <type_traits>
-
-// gen_amalgamated expanded: #include "perfetto/protozero/cpp_message_obj.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/copyable_ptr.h"
-// gen_amalgamated expanded: #include "perfetto/base/export.h"
-
-namespace perfetto {
-namespace protos {
-namespace gen {
-enum BuiltinClock : int;
-}  // namespace perfetto
-}  // namespace protos
-}  // namespace gen
-
-namespace protozero {
-class Message;
-}  // namespace protozero
-
-namespace perfetto {
-namespace protos {
-namespace gen {
-enum BuiltinClock : int {
-  BUILTIN_CLOCK_UNKNOWN = 0,
-  BUILTIN_CLOCK_REALTIME = 1,
-  BUILTIN_CLOCK_REALTIME_COARSE = 2,
-  BUILTIN_CLOCK_MONOTONIC = 3,
-  BUILTIN_CLOCK_MONOTONIC_COARSE = 4,
-  BUILTIN_CLOCK_MONOTONIC_RAW = 5,
-  BUILTIN_CLOCK_BOOTTIME = 6,
-  BUILTIN_CLOCK_MAX_ID = 63,
-};
-}  // namespace perfetto
-}  // namespace protos
-}  // namespace gen
-
-#endif  // PERFETTO_PROTOS_PROTOS_PERFETTO_COMMON_BUILTIN_CLOCK_PROTO_CPP_H_
-// gen_amalgamated begin header: gen/protos/perfetto/common/commit_data_request.gen.h
-// DO NOT EDIT. Autogenerated by Perfetto cppgen_plugin
-#ifndef PERFETTO_PROTOS_PROTOS_PERFETTO_COMMON_COMMIT_DATA_REQUEST_PROTO_CPP_H_
-#define PERFETTO_PROTOS_PROTOS_PERFETTO_COMMON_COMMIT_DATA_REQUEST_PROTO_CPP_H_
-
-#include <stdint.h>
-#include <bitset>
-#include <vector>
-#include <string>
-#include <type_traits>
-
-// gen_amalgamated expanded: #include "perfetto/protozero/cpp_message_obj.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/copyable_ptr.h"
-// gen_amalgamated expanded: #include "perfetto/base/export.h"
-
-namespace perfetto {
-namespace protos {
-namespace gen {
-class CommitDataRequest;
-class CommitDataRequest_ChunkToPatch;
-class CommitDataRequest_ChunkToPatch_Patch;
-class CommitDataRequest_ChunksToMove;
-}  // namespace perfetto
-}  // namespace protos
-}  // namespace gen
-
-namespace protozero {
-class Message;
-}  // namespace protozero
-
-namespace perfetto {
-namespace protos {
-namespace gen {
-
-class PERFETTO_EXPORT CommitDataRequest : public ::protozero::CppMessageObj {
- public:
-  using ChunksToMove = CommitDataRequest_ChunksToMove;
-  using ChunkToPatch = CommitDataRequest_ChunkToPatch;
-  enum FieldNumbers {
-    kChunksToMoveFieldNumber = 1,
-    kChunksToPatchFieldNumber = 2,
-    kFlushRequestIdFieldNumber = 3,
-  };
-
-  CommitDataRequest();
-  ~CommitDataRequest() override;
-  CommitDataRequest(CommitDataRequest&&) noexcept;
-  CommitDataRequest& operator=(CommitDataRequest&&);
-  CommitDataRequest(const CommitDataRequest&);
-  CommitDataRequest& operator=(const CommitDataRequest&);
-  bool operator==(const CommitDataRequest&) const;
-  bool operator!=(const CommitDataRequest& other) const { return !(*this == other); }
-
-  bool ParseFromArray(const void*, size_t) override;
-  std::string SerializeAsString() const override;
-  std::vector<uint8_t> SerializeAsArray() const override;
-  void Serialize(::protozero::Message*) const;
-
-  const std::vector<CommitDataRequest_ChunksToMove>& chunks_to_move() const { return chunks_to_move_; }
-  std::vector<CommitDataRequest_ChunksToMove>* mutable_chunks_to_move() { return &chunks_to_move_; }
-  int chunks_to_move_size() const;
-  void clear_chunks_to_move();
-  CommitDataRequest_ChunksToMove* add_chunks_to_move();
-
-  const std::vector<CommitDataRequest_ChunkToPatch>& chunks_to_patch() const { return chunks_to_patch_; }
-  std::vector<CommitDataRequest_ChunkToPatch>* mutable_chunks_to_patch() { return &chunks_to_patch_; }
-  int chunks_to_patch_size() const;
-  void clear_chunks_to_patch();
-  CommitDataRequest_ChunkToPatch* add_chunks_to_patch();
-
-  bool has_flush_request_id() const { return _has_field_[3]; }
-  uint64_t flush_request_id() const { return flush_request_id_; }
-  void set_flush_request_id(uint64_t value) { flush_request_id_ = value; _has_field_.set(3); }
-
- private:
-  std::vector<CommitDataRequest_ChunksToMove> chunks_to_move_;
-  std::vector<CommitDataRequest_ChunkToPatch> chunks_to_patch_;
-  uint64_t flush_request_id_{};
-
-  // Allows to preserve unknown protobuf fields for compatibility
-  // with future versions of .proto files.
-  std::string unknown_fields_;
-
-  std::bitset<4> _has_field_{};
-};
-
-
-class PERFETTO_EXPORT CommitDataRequest_ChunkToPatch : public ::protozero::CppMessageObj {
- public:
-  using Patch = CommitDataRequest_ChunkToPatch_Patch;
-  enum FieldNumbers {
-    kTargetBufferFieldNumber = 1,
-    kWriterIdFieldNumber = 2,
-    kChunkIdFieldNumber = 3,
-    kPatchesFieldNumber = 4,
-    kHasMorePatchesFieldNumber = 5,
-  };
-
-  CommitDataRequest_ChunkToPatch();
-  ~CommitDataRequest_ChunkToPatch() override;
-  CommitDataRequest_ChunkToPatch(CommitDataRequest_ChunkToPatch&&) noexcept;
-  CommitDataRequest_ChunkToPatch& operator=(CommitDataRequest_ChunkToPatch&&);
-  CommitDataRequest_ChunkToPatch(const CommitDataRequest_ChunkToPatch&);
-  CommitDataRequest_ChunkToPatch& operator=(const CommitDataRequest_ChunkToPatch&);
-  bool operator==(const CommitDataRequest_ChunkToPatch&) const;
-  bool operator!=(const CommitDataRequest_ChunkToPatch& other) const { return !(*this == other); }
-
-  bool ParseFromArray(const void*, size_t) override;
-  std::string SerializeAsString() const override;
-  std::vector<uint8_t> SerializeAsArray() const override;
-  void Serialize(::protozero::Message*) const;
-
-  bool has_target_buffer() const { return _has_field_[1]; }
-  uint32_t target_buffer() const { return target_buffer_; }
-  void set_target_buffer(uint32_t value) { target_buffer_ = value; _has_field_.set(1); }
-
-  bool has_writer_id() const { return _has_field_[2]; }
-  uint32_t writer_id() const { return writer_id_; }
-  void set_writer_id(uint32_t value) { writer_id_ = value; _has_field_.set(2); }
-
-  bool has_chunk_id() const { return _has_field_[3]; }
-  uint32_t chunk_id() const { return chunk_id_; }
-  void set_chunk_id(uint32_t value) { chunk_id_ = value; _has_field_.set(3); }
-
-  const std::vector<CommitDataRequest_ChunkToPatch_Patch>& patches() const { return patches_; }
-  std::vector<CommitDataRequest_ChunkToPatch_Patch>* mutable_patches() { return &patches_; }
-  int patches_size() const;
-  void clear_patches();
-  CommitDataRequest_ChunkToPatch_Patch* add_patches();
-
-  bool has_has_more_patches() const { return _has_field_[5]; }
-  bool has_more_patches() const { return has_more_patches_; }
-  void set_has_more_patches(bool value) { has_more_patches_ = value; _has_field_.set(5); }
-
- private:
-  uint32_t target_buffer_{};
-  uint32_t writer_id_{};
-  uint32_t chunk_id_{};
-  std::vector<CommitDataRequest_ChunkToPatch_Patch> patches_;
-  bool has_more_patches_{};
-
-  // Allows to preserve unknown protobuf fields for compatibility
-  // with future versions of .proto files.
-  std::string unknown_fields_;
-
-  std::bitset<6> _has_field_{};
-};
-
-
-class PERFETTO_EXPORT CommitDataRequest_ChunkToPatch_Patch : public ::protozero::CppMessageObj {
- public:
-  enum FieldNumbers {
-    kOffsetFieldNumber = 1,
-    kDataFieldNumber = 2,
-  };
-
-  CommitDataRequest_ChunkToPatch_Patch();
-  ~CommitDataRequest_ChunkToPatch_Patch() override;
-  CommitDataRequest_ChunkToPatch_Patch(CommitDataRequest_ChunkToPatch_Patch&&) noexcept;
-  CommitDataRequest_ChunkToPatch_Patch& operator=(CommitDataRequest_ChunkToPatch_Patch&&);
-  CommitDataRequest_ChunkToPatch_Patch(const CommitDataRequest_ChunkToPatch_Patch&);
-  CommitDataRequest_ChunkToPatch_Patch& operator=(const CommitDataRequest_ChunkToPatch_Patch&);
-  bool operator==(const CommitDataRequest_ChunkToPatch_Patch&) const;
-  bool operator!=(const CommitDataRequest_ChunkToPatch_Patch& other) const { return !(*this == other); }
-
-  bool ParseFromArray(const void*, size_t) override;
-  std::string SerializeAsString() const override;
-  std::vector<uint8_t> SerializeAsArray() const override;
-  void Serialize(::protozero::Message*) const;
-
-  bool has_offset() const { return _has_field_[1]; }
-  uint32_t offset() const { return offset_; }
-  void set_offset(uint32_t value) { offset_ = value; _has_field_.set(1); }
-
-  bool has_data() const { return _has_field_[2]; }
-  const std::string& data() const { return data_; }
-  void set_data(const std::string& value) { data_ = value; _has_field_.set(2); }
-  void set_data(const void* p, size_t s) { data_.assign(reinterpret_cast<const char*>(p), s); _has_field_.set(2); }
-
- private:
-  uint32_t offset_{};
-  std::string data_{};
-
-  // Allows to preserve unknown protobuf fields for compatibility
-  // with future versions of .proto files.
-  std::string unknown_fields_;
-
-  std::bitset<3> _has_field_{};
-};
-
-
-class PERFETTO_EXPORT CommitDataRequest_ChunksToMove : public ::protozero::CppMessageObj {
- public:
-  enum FieldNumbers {
-    kPageFieldNumber = 1,
-    kChunkFieldNumber = 2,
-    kTargetBufferFieldNumber = 3,
-  };
-
-  CommitDataRequest_ChunksToMove();
-  ~CommitDataRequest_ChunksToMove() override;
-  CommitDataRequest_ChunksToMove(CommitDataRequest_ChunksToMove&&) noexcept;
-  CommitDataRequest_ChunksToMove& operator=(CommitDataRequest_ChunksToMove&&);
-  CommitDataRequest_ChunksToMove(const CommitDataRequest_ChunksToMove&);
-  CommitDataRequest_ChunksToMove& operator=(const CommitDataRequest_ChunksToMove&);
-  bool operator==(const CommitDataRequest_ChunksToMove&) const;
-  bool operator!=(const CommitDataRequest_ChunksToMove& other) const { return !(*this == other); }
-
-  bool ParseFromArray(const void*, size_t) override;
-  std::string SerializeAsString() const override;
-  std::vector<uint8_t> SerializeAsArray() const override;
-  void Serialize(::protozero::Message*) const;
-
-  bool has_page() const { return _has_field_[1]; }
-  uint32_t page() const { return page_; }
-  void set_page(uint32_t value) { page_ = value; _has_field_.set(1); }
-
-  bool has_chunk() const { return _has_field_[2]; }
-  uint32_t chunk() const { return chunk_; }
-  void set_chunk(uint32_t value) { chunk_ = value; _has_field_.set(2); }
-
-  bool has_target_buffer() const { return _has_field_[3]; }
-  uint32_t target_buffer() const { return target_buffer_; }
-  void set_target_buffer(uint32_t value) { target_buffer_ = value; _has_field_.set(3); }
-
- private:
-  uint32_t page_{};
-  uint32_t chunk_{};
-  uint32_t target_buffer_{};
-
-  // Allows to preserve unknown protobuf fields for compatibility
-  // with future versions of .proto files.
-  std::string unknown_fields_;
-
-  std::bitset<4> _has_field_{};
-};
-
-}  // namespace perfetto
-}  // namespace protos
-}  // namespace gen
-
-#endif  // PERFETTO_PROTOS_PROTOS_PERFETTO_COMMON_COMMIT_DATA_REQUEST_PROTO_CPP_H_
-// gen_amalgamated begin header: gen/protos/perfetto/common/data_source_descriptor.gen.h
-// DO NOT EDIT. Autogenerated by Perfetto cppgen_plugin
-#ifndef PERFETTO_PROTOS_PROTOS_PERFETTO_COMMON_DATA_SOURCE_DESCRIPTOR_PROTO_CPP_H_
-#define PERFETTO_PROTOS_PROTOS_PERFETTO_COMMON_DATA_SOURCE_DESCRIPTOR_PROTO_CPP_H_
-
-#include <stdint.h>
-#include <bitset>
-#include <vector>
-#include <string>
-#include <type_traits>
-
-// gen_amalgamated expanded: #include "perfetto/protozero/cpp_message_obj.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/copyable_ptr.h"
-// gen_amalgamated expanded: #include "perfetto/base/export.h"
-
-namespace perfetto {
-namespace protos {
-namespace gen {
-class DataSourceDescriptor;
-}  // namespace perfetto
-}  // namespace protos
-}  // namespace gen
-
-namespace protozero {
-class Message;
-}  // namespace protozero
-
-namespace perfetto {
-namespace protos {
-namespace gen {
-
-class PERFETTO_EXPORT DataSourceDescriptor : public ::protozero::CppMessageObj {
- public:
-  enum FieldNumbers {
-    kNameFieldNumber = 1,
-    kWillNotifyOnStopFieldNumber = 2,
-    kWillNotifyOnStartFieldNumber = 3,
-    kHandlesIncrementalStateClearFieldNumber = 4,
-    kGpuCounterDescriptorFieldNumber = 5,
-    kTrackEventDescriptorFieldNumber = 6,
-  };
-
-  DataSourceDescriptor();
-  ~DataSourceDescriptor() override;
-  DataSourceDescriptor(DataSourceDescriptor&&) noexcept;
-  DataSourceDescriptor& operator=(DataSourceDescriptor&&);
-  DataSourceDescriptor(const DataSourceDescriptor&);
-  DataSourceDescriptor& operator=(const DataSourceDescriptor&);
-  bool operator==(const DataSourceDescriptor&) const;
-  bool operator!=(const DataSourceDescriptor& other) const { return !(*this == other); }
-
-  bool ParseFromArray(const void*, size_t) override;
-  std::string SerializeAsString() const override;
-  std::vector<uint8_t> SerializeAsArray() const override;
-  void Serialize(::protozero::Message*) const;
-
-  bool has_name() const { return _has_field_[1]; }
-  const std::string& name() const { return name_; }
-  void set_name(const std::string& value) { name_ = value; _has_field_.set(1); }
-
-  bool has_will_notify_on_stop() const { return _has_field_[2]; }
-  bool will_notify_on_stop() const { return will_notify_on_stop_; }
-  void set_will_notify_on_stop(bool value) { will_notify_on_stop_ = value; _has_field_.set(2); }
-
-  bool has_will_notify_on_start() const { return _has_field_[3]; }
-  bool will_notify_on_start() const { return will_notify_on_start_; }
-  void set_will_notify_on_start(bool value) { will_notify_on_start_ = value; _has_field_.set(3); }
-
-  bool has_handles_incremental_state_clear() const { return _has_field_[4]; }
-  bool handles_incremental_state_clear() const { return handles_incremental_state_clear_; }
-  void set_handles_incremental_state_clear(bool value) { handles_incremental_state_clear_ = value; _has_field_.set(4); }
-
-  const std::string& gpu_counter_descriptor_raw() const { return gpu_counter_descriptor_; }
-  void set_gpu_counter_descriptor_raw(const std::string& raw) { gpu_counter_descriptor_ = raw; _has_field_.set(5); }
-
-  const std::string& track_event_descriptor_raw() const { return track_event_descriptor_; }
-  void set_track_event_descriptor_raw(const std::string& raw) { track_event_descriptor_ = raw; _has_field_.set(6); }
-
- private:
-  std::string name_{};
-  bool will_notify_on_stop_{};
-  bool will_notify_on_start_{};
-  bool handles_incremental_state_clear_{};
-  std::string gpu_counter_descriptor_;  // [lazy=true]
-  std::string track_event_descriptor_;  // [lazy=true]
-
-  // Allows to preserve unknown protobuf fields for compatibility
-  // with future versions of .proto files.
-  std::string unknown_fields_;
-
-  std::bitset<7> _has_field_{};
-};
-
-}  // namespace perfetto
-}  // namespace protos
-}  // namespace gen
-
-#endif  // PERFETTO_PROTOS_PROTOS_PERFETTO_COMMON_DATA_SOURCE_DESCRIPTOR_PROTO_CPP_H_
-// gen_amalgamated begin header: gen/protos/perfetto/common/descriptor.gen.h
-// DO NOT EDIT. Autogenerated by Perfetto cppgen_plugin
-#ifndef PERFETTO_PROTOS_PROTOS_PERFETTO_COMMON_DESCRIPTOR_PROTO_CPP_H_
-#define PERFETTO_PROTOS_PROTOS_PERFETTO_COMMON_DESCRIPTOR_PROTO_CPP_H_
-
-#include <stdint.h>
-#include <bitset>
-#include <vector>
-#include <string>
-#include <type_traits>
-
-// gen_amalgamated expanded: #include "perfetto/protozero/cpp_message_obj.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/copyable_ptr.h"
-// gen_amalgamated expanded: #include "perfetto/base/export.h"
-
-namespace perfetto {
-namespace protos {
-namespace gen {
-class OneofOptions;
-class EnumValueDescriptorProto;
-class EnumDescriptorProto;
-class OneofDescriptorProto;
-class FieldDescriptorProto;
-class DescriptorProto;
-class DescriptorProto_ReservedRange;
-class FileDescriptorProto;
-class FileDescriptorSet;
-enum FieldDescriptorProto_Type : int;
-enum FieldDescriptorProto_Label : int;
-}  // namespace perfetto
-}  // namespace protos
-}  // namespace gen
-
-namespace protozero {
-class Message;
-}  // namespace protozero
-
-namespace perfetto {
-namespace protos {
-namespace gen {
-enum FieldDescriptorProto_Type : int {
-  FieldDescriptorProto_Type_TYPE_DOUBLE = 1,
-  FieldDescriptorProto_Type_TYPE_FLOAT = 2,
-  FieldDescriptorProto_Type_TYPE_INT64 = 3,
-  FieldDescriptorProto_Type_TYPE_UINT64 = 4,
-  FieldDescriptorProto_Type_TYPE_INT32 = 5,
-  FieldDescriptorProto_Type_TYPE_FIXED64 = 6,
-  FieldDescriptorProto_Type_TYPE_FIXED32 = 7,
-  FieldDescriptorProto_Type_TYPE_BOOL = 8,
-  FieldDescriptorProto_Type_TYPE_STRING = 9,
-  FieldDescriptorProto_Type_TYPE_GROUP = 10,
-  FieldDescriptorProto_Type_TYPE_MESSAGE = 11,
-  FieldDescriptorProto_Type_TYPE_BYTES = 12,
-  FieldDescriptorProto_Type_TYPE_UINT32 = 13,
-  FieldDescriptorProto_Type_TYPE_ENUM = 14,
-  FieldDescriptorProto_Type_TYPE_SFIXED32 = 15,
-  FieldDescriptorProto_Type_TYPE_SFIXED64 = 16,
-  FieldDescriptorProto_Type_TYPE_SINT32 = 17,
-  FieldDescriptorProto_Type_TYPE_SINT64 = 18,
-};
-enum FieldDescriptorProto_Label : int {
-  FieldDescriptorProto_Label_LABEL_OPTIONAL = 1,
-  FieldDescriptorProto_Label_LABEL_REQUIRED = 2,
-  FieldDescriptorProto_Label_LABEL_REPEATED = 3,
-};
-
-class PERFETTO_EXPORT OneofOptions : public ::protozero::CppMessageObj {
- public:
-  enum FieldNumbers {
-  };
-
-  OneofOptions();
-  ~OneofOptions() override;
-  OneofOptions(OneofOptions&&) noexcept;
-  OneofOptions& operator=(OneofOptions&&);
-  OneofOptions(const OneofOptions&);
-  OneofOptions& operator=(const OneofOptions&);
-  bool operator==(const OneofOptions&) const;
-  bool operator!=(const OneofOptions& other) const { return !(*this == other); }
-
-  bool ParseFromArray(const void*, size_t) override;
-  std::string SerializeAsString() const override;
-  std::vector<uint8_t> SerializeAsArray() const override;
-  void Serialize(::protozero::Message*) const;
-
- private:
-
-  // Allows to preserve unknown protobuf fields for compatibility
-  // with future versions of .proto files.
-  std::string unknown_fields_;
-
-  std::bitset<2> _has_field_{};
-};
-
-
-class PERFETTO_EXPORT EnumValueDescriptorProto : public ::protozero::CppMessageObj {
- public:
-  enum FieldNumbers {
-    kNameFieldNumber = 1,
-    kNumberFieldNumber = 2,
-  };
-
-  EnumValueDescriptorProto();
-  ~EnumValueDescriptorProto() override;
-  EnumValueDescriptorProto(EnumValueDescriptorProto&&) noexcept;
-  EnumValueDescriptorProto& operator=(EnumValueDescriptorProto&&);
-  EnumValueDescriptorProto(const EnumValueDescriptorProto&);
-  EnumValueDescriptorProto& operator=(const EnumValueDescriptorProto&);
-  bool operator==(const EnumValueDescriptorProto&) const;
-  bool operator!=(const EnumValueDescriptorProto& other) const { return !(*this == other); }
-
-  bool ParseFromArray(const void*, size_t) override;
-  std::string SerializeAsString() const override;
-  std::vector<uint8_t> SerializeAsArray() const override;
-  void Serialize(::protozero::Message*) const;
-
-  bool has_name() const { return _has_field_[1]; }
-  const std::string& name() const { return name_; }
-  void set_name(const std::string& value) { name_ = value; _has_field_.set(1); }
-
-  bool has_number() const { return _has_field_[2]; }
-  int32_t number() const { return number_; }
-  void set_number(int32_t value) { number_ = value; _has_field_.set(2); }
-
- private:
-  std::string name_{};
-  int32_t number_{};
-
-  // Allows to preserve unknown protobuf fields for compatibility
-  // with future versions of .proto files.
-  std::string unknown_fields_;
-
-  std::bitset<3> _has_field_{};
-};
-
-
-class PERFETTO_EXPORT EnumDescriptorProto : public ::protozero::CppMessageObj {
- public:
-  enum FieldNumbers {
-    kNameFieldNumber = 1,
-    kValueFieldNumber = 2,
-    kReservedNameFieldNumber = 5,
-  };
-
-  EnumDescriptorProto();
-  ~EnumDescriptorProto() override;
-  EnumDescriptorProto(EnumDescriptorProto&&) noexcept;
-  EnumDescriptorProto& operator=(EnumDescriptorProto&&);
-  EnumDescriptorProto(const EnumDescriptorProto&);
-  EnumDescriptorProto& operator=(const EnumDescriptorProto&);
-  bool operator==(const EnumDescriptorProto&) const;
-  bool operator!=(const EnumDescriptorProto& other) const { return !(*this == other); }
-
-  bool ParseFromArray(const void*, size_t) override;
-  std::string SerializeAsString() const override;
-  std::vector<uint8_t> SerializeAsArray() const override;
-  void Serialize(::protozero::Message*) const;
-
-  bool has_name() const { return _has_field_[1]; }
-  const std::string& name() const { return name_; }
-  void set_name(const std::string& value) { name_ = value; _has_field_.set(1); }
-
-  const std::vector<EnumValueDescriptorProto>& value() const { return value_; }
-  std::vector<EnumValueDescriptorProto>* mutable_value() { return &value_; }
-  int value_size() const;
-  void clear_value();
-  EnumValueDescriptorProto* add_value();
-
-  const std::vector<std::string>& reserved_name() const { return reserved_name_; }
-  std::vector<std::string>* mutable_reserved_name() { return &reserved_name_; }
-  int reserved_name_size() const { return static_cast<int>(reserved_name_.size()); }
-  void clear_reserved_name() { reserved_name_.clear(); }
-  void add_reserved_name(std::string value) { reserved_name_.emplace_back(value); }
-  std::string* add_reserved_name() { reserved_name_.emplace_back(); return &reserved_name_.back(); }
-
- private:
-  std::string name_{};
-  std::vector<EnumValueDescriptorProto> value_;
-  std::vector<std::string> reserved_name_;
-
-  // Allows to preserve unknown protobuf fields for compatibility
-  // with future versions of .proto files.
-  std::string unknown_fields_;
-
-  std::bitset<6> _has_field_{};
-};
-
-
-class PERFETTO_EXPORT OneofDescriptorProto : public ::protozero::CppMessageObj {
- public:
-  enum FieldNumbers {
-    kNameFieldNumber = 1,
-    kOptionsFieldNumber = 2,
-  };
-
-  OneofDescriptorProto();
-  ~OneofDescriptorProto() override;
-  OneofDescriptorProto(OneofDescriptorProto&&) noexcept;
-  OneofDescriptorProto& operator=(OneofDescriptorProto&&);
-  OneofDescriptorProto(const OneofDescriptorProto&);
-  OneofDescriptorProto& operator=(const OneofDescriptorProto&);
-  bool operator==(const OneofDescriptorProto&) const;
-  bool operator!=(const OneofDescriptorProto& other) const { return !(*this == other); }
-
-  bool ParseFromArray(const void*, size_t) override;
-  std::string SerializeAsString() const override;
-  std::vector<uint8_t> SerializeAsArray() const override;
-  void Serialize(::protozero::Message*) const;
-
-  bool has_name() const { return _has_field_[1]; }
-  const std::string& name() const { return name_; }
-  void set_name(const std::string& value) { name_ = value; _has_field_.set(1); }
-
-  bool has_options() const { return _has_field_[2]; }
-  const OneofOptions& options() const { return *options_; }
-  OneofOptions* mutable_options() { _has_field_.set(2); return options_.get(); }
-
- private:
-  std::string name_{};
-  ::protozero::CopyablePtr<OneofOptions> options_;
-
-  // Allows to preserve unknown protobuf fields for compatibility
-  // with future versions of .proto files.
-  std::string unknown_fields_;
-
-  std::bitset<3> _has_field_{};
-};
-
-
-class PERFETTO_EXPORT FieldDescriptorProto : public ::protozero::CppMessageObj {
- public:
-  using Type = FieldDescriptorProto_Type;
-  static constexpr auto TYPE_DOUBLE = FieldDescriptorProto_Type_TYPE_DOUBLE;
-  static constexpr auto TYPE_FLOAT = FieldDescriptorProto_Type_TYPE_FLOAT;
-  static constexpr auto TYPE_INT64 = FieldDescriptorProto_Type_TYPE_INT64;
-  static constexpr auto TYPE_UINT64 = FieldDescriptorProto_Type_TYPE_UINT64;
-  static constexpr auto TYPE_INT32 = FieldDescriptorProto_Type_TYPE_INT32;
-  static constexpr auto TYPE_FIXED64 = FieldDescriptorProto_Type_TYPE_FIXED64;
-  static constexpr auto TYPE_FIXED32 = FieldDescriptorProto_Type_TYPE_FIXED32;
-  static constexpr auto TYPE_BOOL = FieldDescriptorProto_Type_TYPE_BOOL;
-  static constexpr auto TYPE_STRING = FieldDescriptorProto_Type_TYPE_STRING;
-  static constexpr auto TYPE_GROUP = FieldDescriptorProto_Type_TYPE_GROUP;
-  static constexpr auto TYPE_MESSAGE = FieldDescriptorProto_Type_TYPE_MESSAGE;
-  static constexpr auto TYPE_BYTES = FieldDescriptorProto_Type_TYPE_BYTES;
-  static constexpr auto TYPE_UINT32 = FieldDescriptorProto_Type_TYPE_UINT32;
-  static constexpr auto TYPE_ENUM = FieldDescriptorProto_Type_TYPE_ENUM;
-  static constexpr auto TYPE_SFIXED32 = FieldDescriptorProto_Type_TYPE_SFIXED32;
-  static constexpr auto TYPE_SFIXED64 = FieldDescriptorProto_Type_TYPE_SFIXED64;
-  static constexpr auto TYPE_SINT32 = FieldDescriptorProto_Type_TYPE_SINT32;
-  static constexpr auto TYPE_SINT64 = FieldDescriptorProto_Type_TYPE_SINT64;
-  static constexpr auto Type_MIN = FieldDescriptorProto_Type_TYPE_DOUBLE;
-  static constexpr auto Type_MAX = FieldDescriptorProto_Type_TYPE_SINT64;
-  using Label = FieldDescriptorProto_Label;
-  static constexpr auto LABEL_OPTIONAL = FieldDescriptorProto_Label_LABEL_OPTIONAL;
-  static constexpr auto LABEL_REQUIRED = FieldDescriptorProto_Label_LABEL_REQUIRED;
-  static constexpr auto LABEL_REPEATED = FieldDescriptorProto_Label_LABEL_REPEATED;
-  static constexpr auto Label_MIN = FieldDescriptorProto_Label_LABEL_OPTIONAL;
-  static constexpr auto Label_MAX = FieldDescriptorProto_Label_LABEL_REPEATED;
-  enum FieldNumbers {
-    kNameFieldNumber = 1,
-    kNumberFieldNumber = 3,
-    kLabelFieldNumber = 4,
-    kTypeFieldNumber = 5,
-    kTypeNameFieldNumber = 6,
-    kExtendeeFieldNumber = 2,
-    kDefaultValueFieldNumber = 7,
-    kOneofIndexFieldNumber = 9,
-  };
-
-  FieldDescriptorProto();
-  ~FieldDescriptorProto() override;
-  FieldDescriptorProto(FieldDescriptorProto&&) noexcept;
-  FieldDescriptorProto& operator=(FieldDescriptorProto&&);
-  FieldDescriptorProto(const FieldDescriptorProto&);
-  FieldDescriptorProto& operator=(const FieldDescriptorProto&);
-  bool operator==(const FieldDescriptorProto&) const;
-  bool operator!=(const FieldDescriptorProto& other) const { return !(*this == other); }
-
-  bool ParseFromArray(const void*, size_t) override;
-  std::string SerializeAsString() const override;
-  std::vector<uint8_t> SerializeAsArray() const override;
-  void Serialize(::protozero::Message*) const;
-
-  bool has_name() const { return _has_field_[1]; }
-  const std::string& name() const { return name_; }
-  void set_name(const std::string& value) { name_ = value; _has_field_.set(1); }
-
-  bool has_number() const { return _has_field_[3]; }
-  int32_t number() const { return number_; }
-  void set_number(int32_t value) { number_ = value; _has_field_.set(3); }
-
-  bool has_label() const { return _has_field_[4]; }
-  FieldDescriptorProto_Label label() const { return label_; }
-  void set_label(FieldDescriptorProto_Label value) { label_ = value; _has_field_.set(4); }
-
-  bool has_type() const { return _has_field_[5]; }
-  FieldDescriptorProto_Type type() const { return type_; }
-  void set_type(FieldDescriptorProto_Type value) { type_ = value; _has_field_.set(5); }
-
-  bool has_type_name() const { return _has_field_[6]; }
-  const std::string& type_name() const { return type_name_; }
-  void set_type_name(const std::string& value) { type_name_ = value; _has_field_.set(6); }
-
-  bool has_extendee() const { return _has_field_[2]; }
-  const std::string& extendee() const { return extendee_; }
-  void set_extendee(const std::string& value) { extendee_ = value; _has_field_.set(2); }
-
-  bool has_default_value() const { return _has_field_[7]; }
-  const std::string& default_value() const { return default_value_; }
-  void set_default_value(const std::string& value) { default_value_ = value; _has_field_.set(7); }
-
-  bool has_oneof_index() const { return _has_field_[9]; }
-  int32_t oneof_index() const { return oneof_index_; }
-  void set_oneof_index(int32_t value) { oneof_index_ = value; _has_field_.set(9); }
-
- private:
-  std::string name_{};
-  int32_t number_{};
-  FieldDescriptorProto_Label label_{};
-  FieldDescriptorProto_Type type_{};
-  std::string type_name_{};
-  std::string extendee_{};
-  std::string default_value_{};
-  int32_t oneof_index_{};
-
-  // Allows to preserve unknown protobuf fields for compatibility
-  // with future versions of .proto files.
-  std::string unknown_fields_;
-
-  std::bitset<10> _has_field_{};
-};
-
-
-class PERFETTO_EXPORT DescriptorProto : public ::protozero::CppMessageObj {
- public:
-  using ReservedRange = DescriptorProto_ReservedRange;
-  enum FieldNumbers {
-    kNameFieldNumber = 1,
-    kFieldFieldNumber = 2,
-    kExtensionFieldNumber = 6,
-    kNestedTypeFieldNumber = 3,
-    kEnumTypeFieldNumber = 4,
-    kOneofDeclFieldNumber = 8,
-    kReservedRangeFieldNumber = 9,
-    kReservedNameFieldNumber = 10,
-  };
-
-  DescriptorProto();
-  ~DescriptorProto() override;
-  DescriptorProto(DescriptorProto&&) noexcept;
-  DescriptorProto& operator=(DescriptorProto&&);
-  DescriptorProto(const DescriptorProto&);
-  DescriptorProto& operator=(const DescriptorProto&);
-  bool operator==(const DescriptorProto&) const;
-  bool operator!=(const DescriptorProto& other) const { return !(*this == other); }
-
-  bool ParseFromArray(const void*, size_t) override;
-  std::string SerializeAsString() const override;
-  std::vector<uint8_t> SerializeAsArray() const override;
-  void Serialize(::protozero::Message*) const;
-
-  bool has_name() const { return _has_field_[1]; }
-  const std::string& name() const { return name_; }
-  void set_name(const std::string& value) { name_ = value; _has_field_.set(1); }
-
-  const std::vector<FieldDescriptorProto>& field() const { return field_; }
-  std::vector<FieldDescriptorProto>* mutable_field() { return &field_; }
-  int field_size() const;
-  void clear_field();
-  FieldDescriptorProto* add_field();
-
-  const std::vector<FieldDescriptorProto>& extension() const { return extension_; }
-  std::vector<FieldDescriptorProto>* mutable_extension() { return &extension_; }
-  int extension_size() const;
-  void clear_extension();
-  FieldDescriptorProto* add_extension();
-
-  const std::vector<DescriptorProto>& nested_type() const { return nested_type_; }
-  std::vector<DescriptorProto>* mutable_nested_type() { return &nested_type_; }
-  int nested_type_size() const;
-  void clear_nested_type();
-  DescriptorProto* add_nested_type();
-
-  const std::vector<EnumDescriptorProto>& enum_type() const { return enum_type_; }
-  std::vector<EnumDescriptorProto>* mutable_enum_type() { return &enum_type_; }
-  int enum_type_size() const;
-  void clear_enum_type();
-  EnumDescriptorProto* add_enum_type();
-
-  const std::vector<OneofDescriptorProto>& oneof_decl() const { return oneof_decl_; }
-  std::vector<OneofDescriptorProto>* mutable_oneof_decl() { return &oneof_decl_; }
-  int oneof_decl_size() const;
-  void clear_oneof_decl();
-  OneofDescriptorProto* add_oneof_decl();
-
-  const std::vector<DescriptorProto_ReservedRange>& reserved_range() const { return reserved_range_; }
-  std::vector<DescriptorProto_ReservedRange>* mutable_reserved_range() { return &reserved_range_; }
-  int reserved_range_size() const;
-  void clear_reserved_range();
-  DescriptorProto_ReservedRange* add_reserved_range();
-
-  const std::vector<std::string>& reserved_name() const { return reserved_name_; }
-  std::vector<std::string>* mutable_reserved_name() { return &reserved_name_; }
-  int reserved_name_size() const { return static_cast<int>(reserved_name_.size()); }
-  void clear_reserved_name() { reserved_name_.clear(); }
-  void add_reserved_name(std::string value) { reserved_name_.emplace_back(value); }
-  std::string* add_reserved_name() { reserved_name_.emplace_back(); return &reserved_name_.back(); }
-
- private:
-  std::string name_{};
-  std::vector<FieldDescriptorProto> field_;
-  std::vector<FieldDescriptorProto> extension_;
-  std::vector<DescriptorProto> nested_type_;
-  std::vector<EnumDescriptorProto> enum_type_;
-  std::vector<OneofDescriptorProto> oneof_decl_;
-  std::vector<DescriptorProto_ReservedRange> reserved_range_;
-  std::vector<std::string> reserved_name_;
-
-  // Allows to preserve unknown protobuf fields for compatibility
-  // with future versions of .proto files.
-  std::string unknown_fields_;
-
-  std::bitset<11> _has_field_{};
-};
-
-
-class PERFETTO_EXPORT DescriptorProto_ReservedRange : public ::protozero::CppMessageObj {
- public:
-  enum FieldNumbers {
-    kStartFieldNumber = 1,
-    kEndFieldNumber = 2,
-  };
-
-  DescriptorProto_ReservedRange();
-  ~DescriptorProto_ReservedRange() override;
-  DescriptorProto_ReservedRange(DescriptorProto_ReservedRange&&) noexcept;
-  DescriptorProto_ReservedRange& operator=(DescriptorProto_ReservedRange&&);
-  DescriptorProto_ReservedRange(const DescriptorProto_ReservedRange&);
-  DescriptorProto_ReservedRange& operator=(const DescriptorProto_ReservedRange&);
-  bool operator==(const DescriptorProto_ReservedRange&) const;
-  bool operator!=(const DescriptorProto_ReservedRange& other) const { return !(*this == other); }
-
-  bool ParseFromArray(const void*, size_t) override;
-  std::string SerializeAsString() const override;
-  std::vector<uint8_t> SerializeAsArray() const override;
-  void Serialize(::protozero::Message*) const;
-
-  bool has_start() const { return _has_field_[1]; }
-  int32_t start() const { return start_; }
-  void set_start(int32_t value) { start_ = value; _has_field_.set(1); }
-
-  bool has_end() const { return _has_field_[2]; }
-  int32_t end() const { return end_; }
-  void set_end(int32_t value) { end_ = value; _has_field_.set(2); }
-
- private:
-  int32_t start_{};
-  int32_t end_{};
-
-  // Allows to preserve unknown protobuf fields for compatibility
-  // with future versions of .proto files.
-  std::string unknown_fields_;
-
-  std::bitset<3> _has_field_{};
-};
-
-
-class PERFETTO_EXPORT FileDescriptorProto : public ::protozero::CppMessageObj {
- public:
-  enum FieldNumbers {
-    kNameFieldNumber = 1,
-    kPackageFieldNumber = 2,
-    kDependencyFieldNumber = 3,
-    kPublicDependencyFieldNumber = 10,
-    kWeakDependencyFieldNumber = 11,
-    kMessageTypeFieldNumber = 4,
-    kEnumTypeFieldNumber = 5,
-    kExtensionFieldNumber = 7,
-  };
-
-  FileDescriptorProto();
-  ~FileDescriptorProto() override;
-  FileDescriptorProto(FileDescriptorProto&&) noexcept;
-  FileDescriptorProto& operator=(FileDescriptorProto&&);
-  FileDescriptorProto(const FileDescriptorProto&);
-  FileDescriptorProto& operator=(const FileDescriptorProto&);
-  bool operator==(const FileDescriptorProto&) const;
-  bool operator!=(const FileDescriptorProto& other) const { return !(*this == other); }
-
-  bool ParseFromArray(const void*, size_t) override;
-  std::string SerializeAsString() const override;
-  std::vector<uint8_t> SerializeAsArray() const override;
-  void Serialize(::protozero::Message*) const;
-
-  bool has_name() const { return _has_field_[1]; }
-  const std::string& name() const { return name_; }
-  void set_name(const std::string& value) { name_ = value; _has_field_.set(1); }
-
-  bool has_package() const { return _has_field_[2]; }
-  const std::string& package() const { return package_; }
-  void set_package(const std::string& value) { package_ = value; _has_field_.set(2); }
-
-  const std::vector<std::string>& dependency() const { return dependency_; }
-  std::vector<std::string>* mutable_dependency() { return &dependency_; }
-  int dependency_size() const { return static_cast<int>(dependency_.size()); }
-  void clear_dependency() { dependency_.clear(); }
-  void add_dependency(std::string value) { dependency_.emplace_back(value); }
-  std::string* add_dependency() { dependency_.emplace_back(); return &dependency_.back(); }
-
-  const std::vector<int32_t>& public_dependency() const { return public_dependency_; }
-  std::vector<int32_t>* mutable_public_dependency() { return &public_dependency_; }
-  int public_dependency_size() const { return static_cast<int>(public_dependency_.size()); }
-  void clear_public_dependency() { public_dependency_.clear(); }
-  void add_public_dependency(int32_t value) { public_dependency_.emplace_back(value); }
-  int32_t* add_public_dependency() { public_dependency_.emplace_back(); return &public_dependency_.back(); }
-
-  const std::vector<int32_t>& weak_dependency() const { return weak_dependency_; }
-  std::vector<int32_t>* mutable_weak_dependency() { return &weak_dependency_; }
-  int weak_dependency_size() const { return static_cast<int>(weak_dependency_.size()); }
-  void clear_weak_dependency() { weak_dependency_.clear(); }
-  void add_weak_dependency(int32_t value) { weak_dependency_.emplace_back(value); }
-  int32_t* add_weak_dependency() { weak_dependency_.emplace_back(); return &weak_dependency_.back(); }
-
-  const std::vector<DescriptorProto>& message_type() const { return message_type_; }
-  std::vector<DescriptorProto>* mutable_message_type() { return &message_type_; }
-  int message_type_size() const;
-  void clear_message_type();
-  DescriptorProto* add_message_type();
-
-  const std::vector<EnumDescriptorProto>& enum_type() const { return enum_type_; }
-  std::vector<EnumDescriptorProto>* mutable_enum_type() { return &enum_type_; }
-  int enum_type_size() const;
-  void clear_enum_type();
-  EnumDescriptorProto* add_enum_type();
-
-  const std::vector<FieldDescriptorProto>& extension() const { return extension_; }
-  std::vector<FieldDescriptorProto>* mutable_extension() { return &extension_; }
-  int extension_size() const;
-  void clear_extension();
-  FieldDescriptorProto* add_extension();
-
- private:
-  std::string name_{};
-  std::string package_{};
-  std::vector<std::string> dependency_;
-  std::vector<int32_t> public_dependency_;
-  std::vector<int32_t> weak_dependency_;
-  std::vector<DescriptorProto> message_type_;
-  std::vector<EnumDescriptorProto> enum_type_;
-  std::vector<FieldDescriptorProto> extension_;
-
-  // Allows to preserve unknown protobuf fields for compatibility
-  // with future versions of .proto files.
-  std::string unknown_fields_;
-
-  std::bitset<12> _has_field_{};
-};
-
-
-class PERFETTO_EXPORT FileDescriptorSet : public ::protozero::CppMessageObj {
- public:
-  enum FieldNumbers {
-    kFileFieldNumber = 1,
-  };
-
-  FileDescriptorSet();
-  ~FileDescriptorSet() override;
-  FileDescriptorSet(FileDescriptorSet&&) noexcept;
-  FileDescriptorSet& operator=(FileDescriptorSet&&);
-  FileDescriptorSet(const FileDescriptorSet&);
-  FileDescriptorSet& operator=(const FileDescriptorSet&);
-  bool operator==(const FileDescriptorSet&) const;
-  bool operator!=(const FileDescriptorSet& other) const { return !(*this == other); }
-
-  bool ParseFromArray(const void*, size_t) override;
-  std::string SerializeAsString() const override;
-  std::vector<uint8_t> SerializeAsArray() const override;
-  void Serialize(::protozero::Message*) const;
-
-  const std::vector<FileDescriptorProto>& file() const { return file_; }
-  std::vector<FileDescriptorProto>* mutable_file() { return &file_; }
-  int file_size() const;
-  void clear_file();
-  FileDescriptorProto* add_file();
-
- private:
-  std::vector<FileDescriptorProto> file_;
-
-  // Allows to preserve unknown protobuf fields for compatibility
-  // with future versions of .proto files.
-  std::string unknown_fields_;
-
-  std::bitset<2> _has_field_{};
-};
-
-}  // namespace perfetto
-}  // namespace protos
-}  // namespace gen
-
-#endif  // PERFETTO_PROTOS_PROTOS_PERFETTO_COMMON_DESCRIPTOR_PROTO_CPP_H_
-// gen_amalgamated begin header: gen/protos/perfetto/common/gpu_counter_descriptor.gen.h
-// DO NOT EDIT. Autogenerated by Perfetto cppgen_plugin
-#ifndef PERFETTO_PROTOS_PROTOS_PERFETTO_COMMON_GPU_COUNTER_DESCRIPTOR_PROTO_CPP_H_
-#define PERFETTO_PROTOS_PROTOS_PERFETTO_COMMON_GPU_COUNTER_DESCRIPTOR_PROTO_CPP_H_
-
-#include <stdint.h>
-#include <bitset>
-#include <vector>
-#include <string>
-#include <type_traits>
-
-// gen_amalgamated expanded: #include "perfetto/protozero/cpp_message_obj.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/copyable_ptr.h"
-// gen_amalgamated expanded: #include "perfetto/base/export.h"
-
-namespace perfetto {
-namespace protos {
-namespace gen {
-class GpuCounterDescriptor;
-class GpuCounterDescriptor_GpuCounterBlock;
-class GpuCounterDescriptor_GpuCounterSpec;
-enum GpuCounterDescriptor_GpuCounterGroup : int;
-enum GpuCounterDescriptor_MeasureUnit : int;
-}  // namespace perfetto
-}  // namespace protos
-}  // namespace gen
-
-namespace protozero {
-class Message;
-}  // namespace protozero
-
-namespace perfetto {
-namespace protos {
-namespace gen {
-enum GpuCounterDescriptor_GpuCounterGroup : int {
-  GpuCounterDescriptor_GpuCounterGroup_UNCLASSIFIED = 0,
-  GpuCounterDescriptor_GpuCounterGroup_SYSTEM = 1,
-  GpuCounterDescriptor_GpuCounterGroup_VERTICES = 2,
-  GpuCounterDescriptor_GpuCounterGroup_FRAGMENTS = 3,
-  GpuCounterDescriptor_GpuCounterGroup_PRIMITIVES = 4,
-  GpuCounterDescriptor_GpuCounterGroup_MEMORY = 5,
-  GpuCounterDescriptor_GpuCounterGroup_COMPUTE = 6,
-};
-enum GpuCounterDescriptor_MeasureUnit : int {
-  GpuCounterDescriptor_MeasureUnit_NONE = 0,
-  GpuCounterDescriptor_MeasureUnit_BIT = 1,
-  GpuCounterDescriptor_MeasureUnit_KILOBIT = 2,
-  GpuCounterDescriptor_MeasureUnit_MEGABIT = 3,
-  GpuCounterDescriptor_MeasureUnit_GIGABIT = 4,
-  GpuCounterDescriptor_MeasureUnit_TERABIT = 5,
-  GpuCounterDescriptor_MeasureUnit_PETABIT = 6,
-  GpuCounterDescriptor_MeasureUnit_BYTE = 7,
-  GpuCounterDescriptor_MeasureUnit_KILOBYTE = 8,
-  GpuCounterDescriptor_MeasureUnit_MEGABYTE = 9,
-  GpuCounterDescriptor_MeasureUnit_GIGABYTE = 10,
-  GpuCounterDescriptor_MeasureUnit_TERABYTE = 11,
-  GpuCounterDescriptor_MeasureUnit_PETABYTE = 12,
-  GpuCounterDescriptor_MeasureUnit_HERTZ = 13,
-  GpuCounterDescriptor_MeasureUnit_KILOHERTZ = 14,
-  GpuCounterDescriptor_MeasureUnit_MEGAHERTZ = 15,
-  GpuCounterDescriptor_MeasureUnit_GIGAHERTZ = 16,
-  GpuCounterDescriptor_MeasureUnit_TERAHERTZ = 17,
-  GpuCounterDescriptor_MeasureUnit_PETAHERTZ = 18,
-  GpuCounterDescriptor_MeasureUnit_NANOSECOND = 19,
-  GpuCounterDescriptor_MeasureUnit_MICROSECOND = 20,
-  GpuCounterDescriptor_MeasureUnit_MILLISECOND = 21,
-  GpuCounterDescriptor_MeasureUnit_SECOND = 22,
-  GpuCounterDescriptor_MeasureUnit_MINUTE = 23,
-  GpuCounterDescriptor_MeasureUnit_HOUR = 24,
-  GpuCounterDescriptor_MeasureUnit_VERTEX = 25,
-  GpuCounterDescriptor_MeasureUnit_PIXEL = 26,
-  GpuCounterDescriptor_MeasureUnit_TRIANGLE = 27,
-  GpuCounterDescriptor_MeasureUnit_PRIMITIVE = 38,
-  GpuCounterDescriptor_MeasureUnit_FRAGMENT = 39,
-  GpuCounterDescriptor_MeasureUnit_MILLIWATT = 28,
-  GpuCounterDescriptor_MeasureUnit_WATT = 29,
-  GpuCounterDescriptor_MeasureUnit_KILOWATT = 30,
-  GpuCounterDescriptor_MeasureUnit_JOULE = 31,
-  GpuCounterDescriptor_MeasureUnit_VOLT = 32,
-  GpuCounterDescriptor_MeasureUnit_AMPERE = 33,
-  GpuCounterDescriptor_MeasureUnit_CELSIUS = 34,
-  GpuCounterDescriptor_MeasureUnit_FAHRENHEIT = 35,
-  GpuCounterDescriptor_MeasureUnit_KELVIN = 36,
-  GpuCounterDescriptor_MeasureUnit_PERCENT = 37,
-  GpuCounterDescriptor_MeasureUnit_INSTRUCTION = 40,
-};
-
-class PERFETTO_EXPORT GpuCounterDescriptor : public ::protozero::CppMessageObj {
- public:
-  using GpuCounterSpec = GpuCounterDescriptor_GpuCounterSpec;
-  using GpuCounterBlock = GpuCounterDescriptor_GpuCounterBlock;
-  using GpuCounterGroup = GpuCounterDescriptor_GpuCounterGroup;
-  static constexpr auto UNCLASSIFIED = GpuCounterDescriptor_GpuCounterGroup_UNCLASSIFIED;
-  static constexpr auto SYSTEM = GpuCounterDescriptor_GpuCounterGroup_SYSTEM;
-  static constexpr auto VERTICES = GpuCounterDescriptor_GpuCounterGroup_VERTICES;
-  static constexpr auto FRAGMENTS = GpuCounterDescriptor_GpuCounterGroup_FRAGMENTS;
-  static constexpr auto PRIMITIVES = GpuCounterDescriptor_GpuCounterGroup_PRIMITIVES;
-  static constexpr auto MEMORY = GpuCounterDescriptor_GpuCounterGroup_MEMORY;
-  static constexpr auto COMPUTE = GpuCounterDescriptor_GpuCounterGroup_COMPUTE;
-  static constexpr auto GpuCounterGroup_MIN = GpuCounterDescriptor_GpuCounterGroup_UNCLASSIFIED;
-  static constexpr auto GpuCounterGroup_MAX = GpuCounterDescriptor_GpuCounterGroup_COMPUTE;
-  using MeasureUnit = GpuCounterDescriptor_MeasureUnit;
-  static constexpr auto NONE = GpuCounterDescriptor_MeasureUnit_NONE;
-  static constexpr auto BIT = GpuCounterDescriptor_MeasureUnit_BIT;
-  static constexpr auto KILOBIT = GpuCounterDescriptor_MeasureUnit_KILOBIT;
-  static constexpr auto MEGABIT = GpuCounterDescriptor_MeasureUnit_MEGABIT;
-  static constexpr auto GIGABIT = GpuCounterDescriptor_MeasureUnit_GIGABIT;
-  static constexpr auto TERABIT = GpuCounterDescriptor_MeasureUnit_TERABIT;
-  static constexpr auto PETABIT = GpuCounterDescriptor_MeasureUnit_PETABIT;
-  static constexpr auto BYTE = GpuCounterDescriptor_MeasureUnit_BYTE;
-  static constexpr auto KILOBYTE = GpuCounterDescriptor_MeasureUnit_KILOBYTE;
-  static constexpr auto MEGABYTE = GpuCounterDescriptor_MeasureUnit_MEGABYTE;
-  static constexpr auto GIGABYTE = GpuCounterDescriptor_MeasureUnit_GIGABYTE;
-  static constexpr auto TERABYTE = GpuCounterDescriptor_MeasureUnit_TERABYTE;
-  static constexpr auto PETABYTE = GpuCounterDescriptor_MeasureUnit_PETABYTE;
-  static constexpr auto HERTZ = GpuCounterDescriptor_MeasureUnit_HERTZ;
-  static constexpr auto KILOHERTZ = GpuCounterDescriptor_MeasureUnit_KILOHERTZ;
-  static constexpr auto MEGAHERTZ = GpuCounterDescriptor_MeasureUnit_MEGAHERTZ;
-  static constexpr auto GIGAHERTZ = GpuCounterDescriptor_MeasureUnit_GIGAHERTZ;
-  static constexpr auto TERAHERTZ = GpuCounterDescriptor_MeasureUnit_TERAHERTZ;
-  static constexpr auto PETAHERTZ = GpuCounterDescriptor_MeasureUnit_PETAHERTZ;
-  static constexpr auto NANOSECOND = GpuCounterDescriptor_MeasureUnit_NANOSECOND;
-  static constexpr auto MICROSECOND = GpuCounterDescriptor_MeasureUnit_MICROSECOND;
-  static constexpr auto MILLISECOND = GpuCounterDescriptor_MeasureUnit_MILLISECOND;
-  static constexpr auto SECOND = GpuCounterDescriptor_MeasureUnit_SECOND;
-  static constexpr auto MINUTE = GpuCounterDescriptor_MeasureUnit_MINUTE;
-  static constexpr auto HOUR = GpuCounterDescriptor_MeasureUnit_HOUR;
-  static constexpr auto VERTEX = GpuCounterDescriptor_MeasureUnit_VERTEX;
-  static constexpr auto PIXEL = GpuCounterDescriptor_MeasureUnit_PIXEL;
-  static constexpr auto TRIANGLE = GpuCounterDescriptor_MeasureUnit_TRIANGLE;
-  static constexpr auto PRIMITIVE = GpuCounterDescriptor_MeasureUnit_PRIMITIVE;
-  static constexpr auto FRAGMENT = GpuCounterDescriptor_MeasureUnit_FRAGMENT;
-  static constexpr auto MILLIWATT = GpuCounterDescriptor_MeasureUnit_MILLIWATT;
-  static constexpr auto WATT = GpuCounterDescriptor_MeasureUnit_WATT;
-  static constexpr auto KILOWATT = GpuCounterDescriptor_MeasureUnit_KILOWATT;
-  static constexpr auto JOULE = GpuCounterDescriptor_MeasureUnit_JOULE;
-  static constexpr auto VOLT = GpuCounterDescriptor_MeasureUnit_VOLT;
-  static constexpr auto AMPERE = GpuCounterDescriptor_MeasureUnit_AMPERE;
-  static constexpr auto CELSIUS = GpuCounterDescriptor_MeasureUnit_CELSIUS;
-  static constexpr auto FAHRENHEIT = GpuCounterDescriptor_MeasureUnit_FAHRENHEIT;
-  static constexpr auto KELVIN = GpuCounterDescriptor_MeasureUnit_KELVIN;
-  static constexpr auto PERCENT = GpuCounterDescriptor_MeasureUnit_PERCENT;
-  static constexpr auto INSTRUCTION = GpuCounterDescriptor_MeasureUnit_INSTRUCTION;
-  static constexpr auto MeasureUnit_MIN = GpuCounterDescriptor_MeasureUnit_NONE;
-  static constexpr auto MeasureUnit_MAX = GpuCounterDescriptor_MeasureUnit_INSTRUCTION;
-  enum FieldNumbers {
-    kSpecsFieldNumber = 1,
-    kBlocksFieldNumber = 2,
-    kMinSamplingPeriodNsFieldNumber = 3,
-    kMaxSamplingPeriodNsFieldNumber = 4,
-    kSupportsInstrumentedSamplingFieldNumber = 5,
-  };
-
-  GpuCounterDescriptor();
-  ~GpuCounterDescriptor() override;
-  GpuCounterDescriptor(GpuCounterDescriptor&&) noexcept;
-  GpuCounterDescriptor& operator=(GpuCounterDescriptor&&);
-  GpuCounterDescriptor(const GpuCounterDescriptor&);
-  GpuCounterDescriptor& operator=(const GpuCounterDescriptor&);
-  bool operator==(const GpuCounterDescriptor&) const;
-  bool operator!=(const GpuCounterDescriptor& other) const { return !(*this == other); }
-
-  bool ParseFromArray(const void*, size_t) override;
-  std::string SerializeAsString() const override;
-  std::vector<uint8_t> SerializeAsArray() const override;
-  void Serialize(::protozero::Message*) const;
-
-  const std::vector<GpuCounterDescriptor_GpuCounterSpec>& specs() const { return specs_; }
-  std::vector<GpuCounterDescriptor_GpuCounterSpec>* mutable_specs() { return &specs_; }
-  int specs_size() const;
-  void clear_specs();
-  GpuCounterDescriptor_GpuCounterSpec* add_specs();
-
-  const std::vector<GpuCounterDescriptor_GpuCounterBlock>& blocks() const { return blocks_; }
-  std::vector<GpuCounterDescriptor_GpuCounterBlock>* mutable_blocks() { return &blocks_; }
-  int blocks_size() const;
-  void clear_blocks();
-  GpuCounterDescriptor_GpuCounterBlock* add_blocks();
-
-  bool has_min_sampling_period_ns() const { return _has_field_[3]; }
-  uint64_t min_sampling_period_ns() const { return min_sampling_period_ns_; }
-  void set_min_sampling_period_ns(uint64_t value) { min_sampling_period_ns_ = value; _has_field_.set(3); }
-
-  bool has_max_sampling_period_ns() const { return _has_field_[4]; }
-  uint64_t max_sampling_period_ns() const { return max_sampling_period_ns_; }
-  void set_max_sampling_period_ns(uint64_t value) { max_sampling_period_ns_ = value; _has_field_.set(4); }
-
-  bool has_supports_instrumented_sampling() const { return _has_field_[5]; }
-  bool supports_instrumented_sampling() const { return supports_instrumented_sampling_; }
-  void set_supports_instrumented_sampling(bool value) { supports_instrumented_sampling_ = value; _has_field_.set(5); }
-
- private:
-  std::vector<GpuCounterDescriptor_GpuCounterSpec> specs_;
-  std::vector<GpuCounterDescriptor_GpuCounterBlock> blocks_;
-  uint64_t min_sampling_period_ns_{};
-  uint64_t max_sampling_period_ns_{};
-  bool supports_instrumented_sampling_{};
-
-  // Allows to preserve unknown protobuf fields for compatibility
-  // with future versions of .proto files.
-  std::string unknown_fields_;
-
-  std::bitset<6> _has_field_{};
-};
-
-
-class PERFETTO_EXPORT GpuCounterDescriptor_GpuCounterBlock : public ::protozero::CppMessageObj {
- public:
-  enum FieldNumbers {
-    kBlockIdFieldNumber = 1,
-    kBlockCapacityFieldNumber = 2,
-    kNameFieldNumber = 3,
-    kDescriptionFieldNumber = 4,
-    kCounterIdsFieldNumber = 5,
-  };
-
-  GpuCounterDescriptor_GpuCounterBlock();
-  ~GpuCounterDescriptor_GpuCounterBlock() override;
-  GpuCounterDescriptor_GpuCounterBlock(GpuCounterDescriptor_GpuCounterBlock&&) noexcept;
-  GpuCounterDescriptor_GpuCounterBlock& operator=(GpuCounterDescriptor_GpuCounterBlock&&);
-  GpuCounterDescriptor_GpuCounterBlock(const GpuCounterDescriptor_GpuCounterBlock&);
-  GpuCounterDescriptor_GpuCounterBlock& operator=(const GpuCounterDescriptor_GpuCounterBlock&);
-  bool operator==(const GpuCounterDescriptor_GpuCounterBlock&) const;
-  bool operator!=(const GpuCounterDescriptor_GpuCounterBlock& other) const { return !(*this == other); }
-
-  bool ParseFromArray(const void*, size_t) override;
-  std::string SerializeAsString() const override;
-  std::vector<uint8_t> SerializeAsArray() const override;
-  void Serialize(::protozero::Message*) const;
-
-  bool has_block_id() const { return _has_field_[1]; }
-  uint32_t block_id() const { return block_id_; }
-  void set_block_id(uint32_t value) { block_id_ = value; _has_field_.set(1); }
-
-  bool has_block_capacity() const { return _has_field_[2]; }
-  uint32_t block_capacity() const { return block_capacity_; }
-  void set_block_capacity(uint32_t value) { block_capacity_ = value; _has_field_.set(2); }
-
-  bool has_name() const { return _has_field_[3]; }
-  const std::string& name() const { return name_; }
-  void set_name(const std::string& value) { name_ = value; _has_field_.set(3); }
-
-  bool has_description() const { return _has_field_[4]; }
-  const std::string& description() const { return description_; }
-  void set_description(const std::string& value) { description_ = value; _has_field_.set(4); }
-
-  const std::vector<uint32_t>& counter_ids() const { return counter_ids_; }
-  std::vector<uint32_t>* mutable_counter_ids() { return &counter_ids_; }
-  int counter_ids_size() const { return static_cast<int>(counter_ids_.size()); }
-  void clear_counter_ids() { counter_ids_.clear(); }
-  void add_counter_ids(uint32_t value) { counter_ids_.emplace_back(value); }
-  uint32_t* add_counter_ids() { counter_ids_.emplace_back(); return &counter_ids_.back(); }
-
- private:
-  uint32_t block_id_{};
-  uint32_t block_capacity_{};
-  std::string name_{};
-  std::string description_{};
-  std::vector<uint32_t> counter_ids_;
-
-  // Allows to preserve unknown protobuf fields for compatibility
-  // with future versions of .proto files.
-  std::string unknown_fields_;
-
-  std::bitset<6> _has_field_{};
-};
-
-
-class PERFETTO_EXPORT GpuCounterDescriptor_GpuCounterSpec : public ::protozero::CppMessageObj {
- public:
-  enum FieldNumbers {
-    kCounterIdFieldNumber = 1,
-    kNameFieldNumber = 2,
-    kDescriptionFieldNumber = 3,
-    kIntPeakValueFieldNumber = 5,
-    kDoublePeakValueFieldNumber = 6,
-    kNumeratorUnitsFieldNumber = 7,
-    kDenominatorUnitsFieldNumber = 8,
-    kSelectByDefaultFieldNumber = 9,
-    kGroupsFieldNumber = 10,
-  };
-
-  GpuCounterDescriptor_GpuCounterSpec();
-  ~GpuCounterDescriptor_GpuCounterSpec() override;
-  GpuCounterDescriptor_GpuCounterSpec(GpuCounterDescriptor_GpuCounterSpec&&) noexcept;
-  GpuCounterDescriptor_GpuCounterSpec& operator=(GpuCounterDescriptor_GpuCounterSpec&&);
-  GpuCounterDescriptor_GpuCounterSpec(const GpuCounterDescriptor_GpuCounterSpec&);
-  GpuCounterDescriptor_GpuCounterSpec& operator=(const GpuCounterDescriptor_GpuCounterSpec&);
-  bool operator==(const GpuCounterDescriptor_GpuCounterSpec&) const;
-  bool operator!=(const GpuCounterDescriptor_GpuCounterSpec& other) const { return !(*this == other); }
-
-  bool ParseFromArray(const void*, size_t) override;
-  std::string SerializeAsString() const override;
-  std::vector<uint8_t> SerializeAsArray() const override;
-  void Serialize(::protozero::Message*) const;
-
-  bool has_counter_id() const { return _has_field_[1]; }
-  uint32_t counter_id() const { return counter_id_; }
-  void set_counter_id(uint32_t value) { counter_id_ = value; _has_field_.set(1); }
-
-  bool has_name() const { return _has_field_[2]; }
-  const std::string& name() const { return name_; }
-  void set_name(const std::string& value) { name_ = value; _has_field_.set(2); }
-
-  bool has_description() const { return _has_field_[3]; }
-  const std::string& description() const { return description_; }
-  void set_description(const std::string& value) { description_ = value; _has_field_.set(3); }
-
-  bool has_int_peak_value() const { return _has_field_[5]; }
-  int64_t int_peak_value() const { return int_peak_value_; }
-  void set_int_peak_value(int64_t value) { int_peak_value_ = value; _has_field_.set(5); }
-
-  bool has_double_peak_value() const { return _has_field_[6]; }
-  double double_peak_value() const { return double_peak_value_; }
-  void set_double_peak_value(double value) { double_peak_value_ = value; _has_field_.set(6); }
-
-  const std::vector<GpuCounterDescriptor_MeasureUnit>& numerator_units() const { return numerator_units_; }
-  std::vector<GpuCounterDescriptor_MeasureUnit>* mutable_numerator_units() { return &numerator_units_; }
-  int numerator_units_size() const { return static_cast<int>(numerator_units_.size()); }
-  void clear_numerator_units() { numerator_units_.clear(); }
-  void add_numerator_units(GpuCounterDescriptor_MeasureUnit value) { numerator_units_.emplace_back(value); }
-  GpuCounterDescriptor_MeasureUnit* add_numerator_units() { numerator_units_.emplace_back(); return &numerator_units_.back(); }
-
-  const std::vector<GpuCounterDescriptor_MeasureUnit>& denominator_units() const { return denominator_units_; }
-  std::vector<GpuCounterDescriptor_MeasureUnit>* mutable_denominator_units() { return &denominator_units_; }
-  int denominator_units_size() const { return static_cast<int>(denominator_units_.size()); }
-  void clear_denominator_units() { denominator_units_.clear(); }
-  void add_denominator_units(GpuCounterDescriptor_MeasureUnit value) { denominator_units_.emplace_back(value); }
-  GpuCounterDescriptor_MeasureUnit* add_denominator_units() { denominator_units_.emplace_back(); return &denominator_units_.back(); }
-
-  bool has_select_by_default() const { return _has_field_[9]; }
-  bool select_by_default() const { return select_by_default_; }
-  void set_select_by_default(bool value) { select_by_default_ = value; _has_field_.set(9); }
-
-  const std::vector<GpuCounterDescriptor_GpuCounterGroup>& groups() const { return groups_; }
-  std::vector<GpuCounterDescriptor_GpuCounterGroup>* mutable_groups() { return &groups_; }
-  int groups_size() const { return static_cast<int>(groups_.size()); }
-  void clear_groups() { groups_.clear(); }
-  void add_groups(GpuCounterDescriptor_GpuCounterGroup value) { groups_.emplace_back(value); }
-  GpuCounterDescriptor_GpuCounterGroup* add_groups() { groups_.emplace_back(); return &groups_.back(); }
-
- private:
-  uint32_t counter_id_{};
-  std::string name_{};
-  std::string description_{};
-  int64_t int_peak_value_{};
-  double double_peak_value_{};
-  std::vector<GpuCounterDescriptor_MeasureUnit> numerator_units_;
-  std::vector<GpuCounterDescriptor_MeasureUnit> denominator_units_;
-  bool select_by_default_{};
-  std::vector<GpuCounterDescriptor_GpuCounterGroup> groups_;
-
-  // Allows to preserve unknown protobuf fields for compatibility
-  // with future versions of .proto files.
-  std::string unknown_fields_;
-
-  std::bitset<11> _has_field_{};
-};
-
-}  // namespace perfetto
-}  // namespace protos
-}  // namespace gen
-
-#endif  // PERFETTO_PROTOS_PROTOS_PERFETTO_COMMON_GPU_COUNTER_DESCRIPTOR_PROTO_CPP_H_
-// gen_amalgamated begin header: gen/protos/perfetto/common/interceptor_descriptor.gen.h
-// DO NOT EDIT. Autogenerated by Perfetto cppgen_plugin
-#ifndef PERFETTO_PROTOS_PROTOS_PERFETTO_COMMON_INTERCEPTOR_DESCRIPTOR_PROTO_CPP_H_
-#define PERFETTO_PROTOS_PROTOS_PERFETTO_COMMON_INTERCEPTOR_DESCRIPTOR_PROTO_CPP_H_
-
-#include <stdint.h>
-#include <bitset>
-#include <vector>
-#include <string>
-#include <type_traits>
-
-// gen_amalgamated expanded: #include "perfetto/protozero/cpp_message_obj.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/copyable_ptr.h"
-// gen_amalgamated expanded: #include "perfetto/base/export.h"
-
-namespace perfetto {
-namespace protos {
-namespace gen {
-class InterceptorDescriptor;
-}  // namespace perfetto
-}  // namespace protos
-}  // namespace gen
-
-namespace protozero {
-class Message;
-}  // namespace protozero
-
-namespace perfetto {
-namespace protos {
-namespace gen {
-
-class PERFETTO_EXPORT InterceptorDescriptor : public ::protozero::CppMessageObj {
- public:
-  enum FieldNumbers {
-    kNameFieldNumber = 1,
-  };
-
-  InterceptorDescriptor();
-  ~InterceptorDescriptor() override;
-  InterceptorDescriptor(InterceptorDescriptor&&) noexcept;
-  InterceptorDescriptor& operator=(InterceptorDescriptor&&);
-  InterceptorDescriptor(const InterceptorDescriptor&);
-  InterceptorDescriptor& operator=(const InterceptorDescriptor&);
-  bool operator==(const InterceptorDescriptor&) const;
-  bool operator!=(const InterceptorDescriptor& other) const { return !(*this == other); }
-
-  bool ParseFromArray(const void*, size_t) override;
-  std::string SerializeAsString() const override;
-  std::vector<uint8_t> SerializeAsArray() const override;
-  void Serialize(::protozero::Message*) const;
-
-  bool has_name() const { return _has_field_[1]; }
-  const std::string& name() const { return name_; }
-  void set_name(const std::string& value) { name_ = value; _has_field_.set(1); }
-
- private:
-  std::string name_{};
-
-  // Allows to preserve unknown protobuf fields for compatibility
-  // with future versions of .proto files.
-  std::string unknown_fields_;
-
-  std::bitset<2> _has_field_{};
-};
-
-}  // namespace perfetto
-}  // namespace protos
-}  // namespace gen
-
-#endif  // PERFETTO_PROTOS_PROTOS_PERFETTO_COMMON_INTERCEPTOR_DESCRIPTOR_PROTO_CPP_H_
-// gen_amalgamated begin header: gen/protos/perfetto/common/observable_events.gen.h
-// DO NOT EDIT. Autogenerated by Perfetto cppgen_plugin
-#ifndef PERFETTO_PROTOS_PROTOS_PERFETTO_COMMON_OBSERVABLE_EVENTS_PROTO_CPP_H_
-#define PERFETTO_PROTOS_PROTOS_PERFETTO_COMMON_OBSERVABLE_EVENTS_PROTO_CPP_H_
-
-#include <stdint.h>
-#include <bitset>
-#include <vector>
-#include <string>
-#include <type_traits>
-
-// gen_amalgamated expanded: #include "perfetto/protozero/cpp_message_obj.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/copyable_ptr.h"
-// gen_amalgamated expanded: #include "perfetto/base/export.h"
-
-namespace perfetto {
-namespace protos {
-namespace gen {
-class ObservableEvents;
-class ObservableEvents_DataSourceInstanceStateChange;
-enum ObservableEvents_Type : int;
-enum ObservableEvents_DataSourceInstanceState : int;
-}  // namespace perfetto
-}  // namespace protos
-}  // namespace gen
-
-namespace protozero {
-class Message;
-}  // namespace protozero
-
-namespace perfetto {
-namespace protos {
-namespace gen {
-enum ObservableEvents_Type : int {
-  ObservableEvents_Type_TYPE_UNSPECIFIED = 0,
-  ObservableEvents_Type_TYPE_DATA_SOURCES_INSTANCES = 1,
-  ObservableEvents_Type_TYPE_ALL_DATA_SOURCES_STARTED = 2,
-};
-enum ObservableEvents_DataSourceInstanceState : int {
-  ObservableEvents_DataSourceInstanceState_DATA_SOURCE_INSTANCE_STATE_STOPPED = 1,
-  ObservableEvents_DataSourceInstanceState_DATA_SOURCE_INSTANCE_STATE_STARTED = 2,
-};
-
-class PERFETTO_EXPORT ObservableEvents : public ::protozero::CppMessageObj {
- public:
-  using DataSourceInstanceStateChange = ObservableEvents_DataSourceInstanceStateChange;
-  using Type = ObservableEvents_Type;
-  static constexpr auto TYPE_UNSPECIFIED = ObservableEvents_Type_TYPE_UNSPECIFIED;
-  static constexpr auto TYPE_DATA_SOURCES_INSTANCES = ObservableEvents_Type_TYPE_DATA_SOURCES_INSTANCES;
-  static constexpr auto TYPE_ALL_DATA_SOURCES_STARTED = ObservableEvents_Type_TYPE_ALL_DATA_SOURCES_STARTED;
-  static constexpr auto Type_MIN = ObservableEvents_Type_TYPE_UNSPECIFIED;
-  static constexpr auto Type_MAX = ObservableEvents_Type_TYPE_ALL_DATA_SOURCES_STARTED;
-  using DataSourceInstanceState = ObservableEvents_DataSourceInstanceState;
-  static constexpr auto DATA_SOURCE_INSTANCE_STATE_STOPPED = ObservableEvents_DataSourceInstanceState_DATA_SOURCE_INSTANCE_STATE_STOPPED;
-  static constexpr auto DATA_SOURCE_INSTANCE_STATE_STARTED = ObservableEvents_DataSourceInstanceState_DATA_SOURCE_INSTANCE_STATE_STARTED;
-  static constexpr auto DataSourceInstanceState_MIN = ObservableEvents_DataSourceInstanceState_DATA_SOURCE_INSTANCE_STATE_STOPPED;
-  static constexpr auto DataSourceInstanceState_MAX = ObservableEvents_DataSourceInstanceState_DATA_SOURCE_INSTANCE_STATE_STARTED;
-  enum FieldNumbers {
-    kInstanceStateChangesFieldNumber = 1,
-    kAllDataSourcesStartedFieldNumber = 2,
-  };
-
-  ObservableEvents();
-  ~ObservableEvents() override;
-  ObservableEvents(ObservableEvents&&) noexcept;
-  ObservableEvents& operator=(ObservableEvents&&);
-  ObservableEvents(const ObservableEvents&);
-  ObservableEvents& operator=(const ObservableEvents&);
-  bool operator==(const ObservableEvents&) const;
-  bool operator!=(const ObservableEvents& other) const { return !(*this == other); }
-
-  bool ParseFromArray(const void*, size_t) override;
-  std::string SerializeAsString() const override;
-  std::vector<uint8_t> SerializeAsArray() const override;
-  void Serialize(::protozero::Message*) const;
-
-  const std::vector<ObservableEvents_DataSourceInstanceStateChange>& instance_state_changes() const { return instance_state_changes_; }
-  std::vector<ObservableEvents_DataSourceInstanceStateChange>* mutable_instance_state_changes() { return &instance_state_changes_; }
-  int instance_state_changes_size() const;
-  void clear_instance_state_changes();
-  ObservableEvents_DataSourceInstanceStateChange* add_instance_state_changes();
-
-  bool has_all_data_sources_started() const { return _has_field_[2]; }
-  bool all_data_sources_started() const { return all_data_sources_started_; }
-  void set_all_data_sources_started(bool value) { all_data_sources_started_ = value; _has_field_.set(2); }
-
- private:
-  std::vector<ObservableEvents_DataSourceInstanceStateChange> instance_state_changes_;
-  bool all_data_sources_started_{};
-
-  // Allows to preserve unknown protobuf fields for compatibility
-  // with future versions of .proto files.
-  std::string unknown_fields_;
-
-  std::bitset<3> _has_field_{};
-};
-
-
-class PERFETTO_EXPORT ObservableEvents_DataSourceInstanceStateChange : public ::protozero::CppMessageObj {
- public:
-  enum FieldNumbers {
-    kProducerNameFieldNumber = 1,
-    kDataSourceNameFieldNumber = 2,
-    kStateFieldNumber = 3,
-  };
-
-  ObservableEvents_DataSourceInstanceStateChange();
-  ~ObservableEvents_DataSourceInstanceStateChange() override;
-  ObservableEvents_DataSourceInstanceStateChange(ObservableEvents_DataSourceInstanceStateChange&&) noexcept;
-  ObservableEvents_DataSourceInstanceStateChange& operator=(ObservableEvents_DataSourceInstanceStateChange&&);
-  ObservableEvents_DataSourceInstanceStateChange(const ObservableEvents_DataSourceInstanceStateChange&);
-  ObservableEvents_DataSourceInstanceStateChange& operator=(const ObservableEvents_DataSourceInstanceStateChange&);
-  bool operator==(const ObservableEvents_DataSourceInstanceStateChange&) const;
-  bool operator!=(const ObservableEvents_DataSourceInstanceStateChange& other) const { return !(*this == other); }
-
-  bool ParseFromArray(const void*, size_t) override;
-  std::string SerializeAsString() const override;
-  std::vector<uint8_t> SerializeAsArray() const override;
-  void Serialize(::protozero::Message*) const;
-
-  bool has_producer_name() const { return _has_field_[1]; }
-  const std::string& producer_name() const { return producer_name_; }
-  void set_producer_name(const std::string& value) { producer_name_ = value; _has_field_.set(1); }
-
-  bool has_data_source_name() const { return _has_field_[2]; }
-  const std::string& data_source_name() const { return data_source_name_; }
-  void set_data_source_name(const std::string& value) { data_source_name_ = value; _has_field_.set(2); }
-
-  bool has_state() const { return _has_field_[3]; }
-  ObservableEvents_DataSourceInstanceState state() const { return state_; }
-  void set_state(ObservableEvents_DataSourceInstanceState value) { state_ = value; _has_field_.set(3); }
-
- private:
-  std::string producer_name_{};
-  std::string data_source_name_{};
-  ObservableEvents_DataSourceInstanceState state_{};
-
-  // Allows to preserve unknown protobuf fields for compatibility
-  // with future versions of .proto files.
-  std::string unknown_fields_;
-
-  std::bitset<4> _has_field_{};
-};
-
-}  // namespace perfetto
-}  // namespace protos
-}  // namespace gen
-
-#endif  // PERFETTO_PROTOS_PROTOS_PERFETTO_COMMON_OBSERVABLE_EVENTS_PROTO_CPP_H_
-// gen_amalgamated begin header: gen/protos/perfetto/common/perf_events.gen.h
-// DO NOT EDIT. Autogenerated by Perfetto cppgen_plugin
-#ifndef PERFETTO_PROTOS_PROTOS_PERFETTO_COMMON_PERF_EVENTS_PROTO_CPP_H_
-#define PERFETTO_PROTOS_PROTOS_PERFETTO_COMMON_PERF_EVENTS_PROTO_CPP_H_
-
-#include <stdint.h>
-#include <bitset>
-#include <vector>
-#include <string>
-#include <type_traits>
-
-// gen_amalgamated expanded: #include "perfetto/protozero/cpp_message_obj.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/copyable_ptr.h"
-// gen_amalgamated expanded: #include "perfetto/base/export.h"
-
-namespace perfetto {
-namespace protos {
-namespace gen {
-class PerfEvents;
-class PerfEvents_Tracepoint;
-class PerfEvents_Timebase;
-enum PerfEvents_Counter : int;
-}  // namespace perfetto
-}  // namespace protos
-}  // namespace gen
-
-namespace protozero {
-class Message;
-}  // namespace protozero
-
-namespace perfetto {
-namespace protos {
-namespace gen {
-enum PerfEvents_Counter : int {
-  PerfEvents_Counter_UNKNOWN_COUNTER = 0,
-  PerfEvents_Counter_SW_CPU_CLOCK = 1,
-  PerfEvents_Counter_SW_PAGE_FAULTS = 2,
-  PerfEvents_Counter_HW_CPU_CYCLES = 10,
-  PerfEvents_Counter_HW_INSTRUCTIONS = 11,
-};
-
-class PERFETTO_EXPORT PerfEvents : public ::protozero::CppMessageObj {
- public:
-  using Timebase = PerfEvents_Timebase;
-  using Tracepoint = PerfEvents_Tracepoint;
-  using Counter = PerfEvents_Counter;
-  static constexpr auto UNKNOWN_COUNTER = PerfEvents_Counter_UNKNOWN_COUNTER;
-  static constexpr auto SW_CPU_CLOCK = PerfEvents_Counter_SW_CPU_CLOCK;
-  static constexpr auto SW_PAGE_FAULTS = PerfEvents_Counter_SW_PAGE_FAULTS;
-  static constexpr auto HW_CPU_CYCLES = PerfEvents_Counter_HW_CPU_CYCLES;
-  static constexpr auto HW_INSTRUCTIONS = PerfEvents_Counter_HW_INSTRUCTIONS;
-  static constexpr auto Counter_MIN = PerfEvents_Counter_UNKNOWN_COUNTER;
-  static constexpr auto Counter_MAX = PerfEvents_Counter_HW_INSTRUCTIONS;
-  enum FieldNumbers {
-  };
-
-  PerfEvents();
-  ~PerfEvents() override;
-  PerfEvents(PerfEvents&&) noexcept;
-  PerfEvents& operator=(PerfEvents&&);
-  PerfEvents(const PerfEvents&);
-  PerfEvents& operator=(const PerfEvents&);
-  bool operator==(const PerfEvents&) const;
-  bool operator!=(const PerfEvents& other) const { return !(*this == other); }
-
-  bool ParseFromArray(const void*, size_t) override;
-  std::string SerializeAsString() const override;
-  std::vector<uint8_t> SerializeAsArray() const override;
-  void Serialize(::protozero::Message*) const;
-
- private:
-
-  // Allows to preserve unknown protobuf fields for compatibility
-  // with future versions of .proto files.
-  std::string unknown_fields_;
-
-  std::bitset<2> _has_field_{};
-};
-
-
-class PERFETTO_EXPORT PerfEvents_Tracepoint : public ::protozero::CppMessageObj {
- public:
-  enum FieldNumbers {
-    kNameFieldNumber = 1,
-    kFilterFieldNumber = 2,
-  };
-
-  PerfEvents_Tracepoint();
-  ~PerfEvents_Tracepoint() override;
-  PerfEvents_Tracepoint(PerfEvents_Tracepoint&&) noexcept;
-  PerfEvents_Tracepoint& operator=(PerfEvents_Tracepoint&&);
-  PerfEvents_Tracepoint(const PerfEvents_Tracepoint&);
-  PerfEvents_Tracepoint& operator=(const PerfEvents_Tracepoint&);
-  bool operator==(const PerfEvents_Tracepoint&) const;
-  bool operator!=(const PerfEvents_Tracepoint& other) const { return !(*this == other); }
-
-  bool ParseFromArray(const void*, size_t) override;
-  std::string SerializeAsString() const override;
-  std::vector<uint8_t> SerializeAsArray() const override;
-  void Serialize(::protozero::Message*) const;
-
-  bool has_name() const { return _has_field_[1]; }
-  const std::string& name() const { return name_; }
-  void set_name(const std::string& value) { name_ = value; _has_field_.set(1); }
-
-  bool has_filter() const { return _has_field_[2]; }
-  const std::string& filter() const { return filter_; }
-  void set_filter(const std::string& value) { filter_ = value; _has_field_.set(2); }
-
- private:
-  std::string name_{};
-  std::string filter_{};
-
-  // Allows to preserve unknown protobuf fields for compatibility
-  // with future versions of .proto files.
-  std::string unknown_fields_;
-
-  std::bitset<3> _has_field_{};
-};
-
-
-class PERFETTO_EXPORT PerfEvents_Timebase : public ::protozero::CppMessageObj {
- public:
-  enum FieldNumbers {
-    kFrequencyFieldNumber = 2,
-    kPeriodFieldNumber = 1,
-    kCounterFieldNumber = 4,
-    kTracepointFieldNumber = 3,
-  };
-
-  PerfEvents_Timebase();
-  ~PerfEvents_Timebase() override;
-  PerfEvents_Timebase(PerfEvents_Timebase&&) noexcept;
-  PerfEvents_Timebase& operator=(PerfEvents_Timebase&&);
-  PerfEvents_Timebase(const PerfEvents_Timebase&);
-  PerfEvents_Timebase& operator=(const PerfEvents_Timebase&);
-  bool operator==(const PerfEvents_Timebase&) const;
-  bool operator!=(const PerfEvents_Timebase& other) const { return !(*this == other); }
-
-  bool ParseFromArray(const void*, size_t) override;
-  std::string SerializeAsString() const override;
-  std::vector<uint8_t> SerializeAsArray() const override;
-  void Serialize(::protozero::Message*) const;
-
-  bool has_frequency() const { return _has_field_[2]; }
-  uint64_t frequency() const { return frequency_; }
-  void set_frequency(uint64_t value) { frequency_ = value; _has_field_.set(2); }
-
-  bool has_period() const { return _has_field_[1]; }
-  uint64_t period() const { return period_; }
-  void set_period(uint64_t value) { period_ = value; _has_field_.set(1); }
-
-  bool has_counter() const { return _has_field_[4]; }
-  PerfEvents_Counter counter() const { return counter_; }
-  void set_counter(PerfEvents_Counter value) { counter_ = value; _has_field_.set(4); }
-
-  bool has_tracepoint() const { return _has_field_[3]; }
-  const PerfEvents_Tracepoint& tracepoint() const { return *tracepoint_; }
-  PerfEvents_Tracepoint* mutable_tracepoint() { _has_field_.set(3); return tracepoint_.get(); }
-
- private:
-  uint64_t frequency_{};
-  uint64_t period_{};
-  PerfEvents_Counter counter_{};
-  ::protozero::CopyablePtr<PerfEvents_Tracepoint> tracepoint_;
-
-  // Allows to preserve unknown protobuf fields for compatibility
-  // with future versions of .proto files.
-  std::string unknown_fields_;
-
-  std::bitset<5> _has_field_{};
-};
-
-}  // namespace perfetto
-}  // namespace protos
-}  // namespace gen
-
-#endif  // PERFETTO_PROTOS_PROTOS_PERFETTO_COMMON_PERF_EVENTS_PROTO_CPP_H_
-// gen_amalgamated begin header: gen/protos/perfetto/common/sys_stats_counters.gen.h
-// DO NOT EDIT. Autogenerated by Perfetto cppgen_plugin
-#ifndef PERFETTO_PROTOS_PROTOS_PERFETTO_COMMON_SYS_STATS_COUNTERS_PROTO_CPP_H_
-#define PERFETTO_PROTOS_PROTOS_PERFETTO_COMMON_SYS_STATS_COUNTERS_PROTO_CPP_H_
-
-#include <stdint.h>
-#include <bitset>
-#include <vector>
-#include <string>
-#include <type_traits>
-
-// gen_amalgamated expanded: #include "perfetto/protozero/cpp_message_obj.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/copyable_ptr.h"
-// gen_amalgamated expanded: #include "perfetto/base/export.h"
-
-namespace perfetto {
-namespace protos {
-namespace gen {
-enum MeminfoCounters : int;
-enum VmstatCounters : int;
-}  // namespace perfetto
-}  // namespace protos
-}  // namespace gen
-
-namespace protozero {
-class Message;
-}  // namespace protozero
-
-namespace perfetto {
-namespace protos {
-namespace gen {
-enum MeminfoCounters : int {
-  MEMINFO_UNSPECIFIED = 0,
-  MEMINFO_MEM_TOTAL = 1,
-  MEMINFO_MEM_FREE = 2,
-  MEMINFO_MEM_AVAILABLE = 3,
-  MEMINFO_BUFFERS = 4,
-  MEMINFO_CACHED = 5,
-  MEMINFO_SWAP_CACHED = 6,
-  MEMINFO_ACTIVE = 7,
-  MEMINFO_INACTIVE = 8,
-  MEMINFO_ACTIVE_ANON = 9,
-  MEMINFO_INACTIVE_ANON = 10,
-  MEMINFO_ACTIVE_FILE = 11,
-  MEMINFO_INACTIVE_FILE = 12,
-  MEMINFO_UNEVICTABLE = 13,
-  MEMINFO_MLOCKED = 14,
-  MEMINFO_SWAP_TOTAL = 15,
-  MEMINFO_SWAP_FREE = 16,
-  MEMINFO_DIRTY = 17,
-  MEMINFO_WRITEBACK = 18,
-  MEMINFO_ANON_PAGES = 19,
-  MEMINFO_MAPPED = 20,
-  MEMINFO_SHMEM = 21,
-  MEMINFO_SLAB = 22,
-  MEMINFO_SLAB_RECLAIMABLE = 23,
-  MEMINFO_SLAB_UNRECLAIMABLE = 24,
-  MEMINFO_KERNEL_STACK = 25,
-  MEMINFO_PAGE_TABLES = 26,
-  MEMINFO_COMMIT_LIMIT = 27,
-  MEMINFO_COMMITED_AS = 28,
-  MEMINFO_VMALLOC_TOTAL = 29,
-  MEMINFO_VMALLOC_USED = 30,
-  MEMINFO_VMALLOC_CHUNK = 31,
-  MEMINFO_CMA_TOTAL = 32,
-  MEMINFO_CMA_FREE = 33,
-};
-enum VmstatCounters : int {
-  VMSTAT_UNSPECIFIED = 0,
-  VMSTAT_NR_FREE_PAGES = 1,
-  VMSTAT_NR_ALLOC_BATCH = 2,
-  VMSTAT_NR_INACTIVE_ANON = 3,
-  VMSTAT_NR_ACTIVE_ANON = 4,
-  VMSTAT_NR_INACTIVE_FILE = 5,
-  VMSTAT_NR_ACTIVE_FILE = 6,
-  VMSTAT_NR_UNEVICTABLE = 7,
-  VMSTAT_NR_MLOCK = 8,
-  VMSTAT_NR_ANON_PAGES = 9,
-  VMSTAT_NR_MAPPED = 10,
-  VMSTAT_NR_FILE_PAGES = 11,
-  VMSTAT_NR_DIRTY = 12,
-  VMSTAT_NR_WRITEBACK = 13,
-  VMSTAT_NR_SLAB_RECLAIMABLE = 14,
-  VMSTAT_NR_SLAB_UNRECLAIMABLE = 15,
-  VMSTAT_NR_PAGE_TABLE_PAGES = 16,
-  VMSTAT_NR_KERNEL_STACK = 17,
-  VMSTAT_NR_OVERHEAD = 18,
-  VMSTAT_NR_UNSTABLE = 19,
-  VMSTAT_NR_BOUNCE = 20,
-  VMSTAT_NR_VMSCAN_WRITE = 21,
-  VMSTAT_NR_VMSCAN_IMMEDIATE_RECLAIM = 22,
-  VMSTAT_NR_WRITEBACK_TEMP = 23,
-  VMSTAT_NR_ISOLATED_ANON = 24,
-  VMSTAT_NR_ISOLATED_FILE = 25,
-  VMSTAT_NR_SHMEM = 26,
-  VMSTAT_NR_DIRTIED = 27,
-  VMSTAT_NR_WRITTEN = 28,
-  VMSTAT_NR_PAGES_SCANNED = 29,
-  VMSTAT_WORKINGSET_REFAULT = 30,
-  VMSTAT_WORKINGSET_ACTIVATE = 31,
-  VMSTAT_WORKINGSET_NODERECLAIM = 32,
-  VMSTAT_NR_ANON_TRANSPARENT_HUGEPAGES = 33,
-  VMSTAT_NR_FREE_CMA = 34,
-  VMSTAT_NR_SWAPCACHE = 35,
-  VMSTAT_NR_DIRTY_THRESHOLD = 36,
-  VMSTAT_NR_DIRTY_BACKGROUND_THRESHOLD = 37,
-  VMSTAT_PGPGIN = 38,
-  VMSTAT_PGPGOUT = 39,
-  VMSTAT_PGPGOUTCLEAN = 40,
-  VMSTAT_PSWPIN = 41,
-  VMSTAT_PSWPOUT = 42,
-  VMSTAT_PGALLOC_DMA = 43,
-  VMSTAT_PGALLOC_NORMAL = 44,
-  VMSTAT_PGALLOC_MOVABLE = 45,
-  VMSTAT_PGFREE = 46,
-  VMSTAT_PGACTIVATE = 47,
-  VMSTAT_PGDEACTIVATE = 48,
-  VMSTAT_PGFAULT = 49,
-  VMSTAT_PGMAJFAULT = 50,
-  VMSTAT_PGREFILL_DMA = 51,
-  VMSTAT_PGREFILL_NORMAL = 52,
-  VMSTAT_PGREFILL_MOVABLE = 53,
-  VMSTAT_PGSTEAL_KSWAPD_DMA = 54,
-  VMSTAT_PGSTEAL_KSWAPD_NORMAL = 55,
-  VMSTAT_PGSTEAL_KSWAPD_MOVABLE = 56,
-  VMSTAT_PGSTEAL_DIRECT_DMA = 57,
-  VMSTAT_PGSTEAL_DIRECT_NORMAL = 58,
-  VMSTAT_PGSTEAL_DIRECT_MOVABLE = 59,
-  VMSTAT_PGSCAN_KSWAPD_DMA = 60,
-  VMSTAT_PGSCAN_KSWAPD_NORMAL = 61,
-  VMSTAT_PGSCAN_KSWAPD_MOVABLE = 62,
-  VMSTAT_PGSCAN_DIRECT_DMA = 63,
-  VMSTAT_PGSCAN_DIRECT_NORMAL = 64,
-  VMSTAT_PGSCAN_DIRECT_MOVABLE = 65,
-  VMSTAT_PGSCAN_DIRECT_THROTTLE = 66,
-  VMSTAT_PGINODESTEAL = 67,
-  VMSTAT_SLABS_SCANNED = 68,
-  VMSTAT_KSWAPD_INODESTEAL = 69,
-  VMSTAT_KSWAPD_LOW_WMARK_HIT_QUICKLY = 70,
-  VMSTAT_KSWAPD_HIGH_WMARK_HIT_QUICKLY = 71,
-  VMSTAT_PAGEOUTRUN = 72,
-  VMSTAT_ALLOCSTALL = 73,
-  VMSTAT_PGROTATED = 74,
-  VMSTAT_DROP_PAGECACHE = 75,
-  VMSTAT_DROP_SLAB = 76,
-  VMSTAT_PGMIGRATE_SUCCESS = 77,
-  VMSTAT_PGMIGRATE_FAIL = 78,
-  VMSTAT_COMPACT_MIGRATE_SCANNED = 79,
-  VMSTAT_COMPACT_FREE_SCANNED = 80,
-  VMSTAT_COMPACT_ISOLATED = 81,
-  VMSTAT_COMPACT_STALL = 82,
-  VMSTAT_COMPACT_FAIL = 83,
-  VMSTAT_COMPACT_SUCCESS = 84,
-  VMSTAT_COMPACT_DAEMON_WAKE = 85,
-  VMSTAT_UNEVICTABLE_PGS_CULLED = 86,
-  VMSTAT_UNEVICTABLE_PGS_SCANNED = 87,
-  VMSTAT_UNEVICTABLE_PGS_RESCUED = 88,
-  VMSTAT_UNEVICTABLE_PGS_MLOCKED = 89,
-  VMSTAT_UNEVICTABLE_PGS_MUNLOCKED = 90,
-  VMSTAT_UNEVICTABLE_PGS_CLEARED = 91,
-  VMSTAT_UNEVICTABLE_PGS_STRANDED = 92,
-  VMSTAT_NR_ZSPAGES = 93,
-  VMSTAT_NR_ION_HEAP = 94,
-  VMSTAT_NR_GPU_HEAP = 95,
-  VMSTAT_ALLOCSTALL_DMA = 96,
-  VMSTAT_ALLOCSTALL_MOVABLE = 97,
-  VMSTAT_ALLOCSTALL_NORMAL = 98,
-  VMSTAT_COMPACT_DAEMON_FREE_SCANNED = 99,
-  VMSTAT_COMPACT_DAEMON_MIGRATE_SCANNED = 100,
-  VMSTAT_NR_FASTRPC = 101,
-  VMSTAT_NR_INDIRECTLY_RECLAIMABLE = 102,
-  VMSTAT_NR_ION_HEAP_POOL = 103,
-  VMSTAT_NR_KERNEL_MISC_RECLAIMABLE = 104,
-  VMSTAT_NR_SHADOW_CALL_STACK_BYTES = 105,
-  VMSTAT_NR_SHMEM_HUGEPAGES = 106,
-  VMSTAT_NR_SHMEM_PMDMAPPED = 107,
-  VMSTAT_NR_UNRECLAIMABLE_PAGES = 108,
-  VMSTAT_NR_ZONE_ACTIVE_ANON = 109,
-  VMSTAT_NR_ZONE_ACTIVE_FILE = 110,
-  VMSTAT_NR_ZONE_INACTIVE_ANON = 111,
-  VMSTAT_NR_ZONE_INACTIVE_FILE = 112,
-  VMSTAT_NR_ZONE_UNEVICTABLE = 113,
-  VMSTAT_NR_ZONE_WRITE_PENDING = 114,
-  VMSTAT_OOM_KILL = 115,
-  VMSTAT_PGLAZYFREE = 116,
-  VMSTAT_PGLAZYFREED = 117,
-  VMSTAT_PGREFILL = 118,
-  VMSTAT_PGSCAN_DIRECT = 119,
-  VMSTAT_PGSCAN_KSWAPD = 120,
-  VMSTAT_PGSKIP_DMA = 121,
-  VMSTAT_PGSKIP_MOVABLE = 122,
-  VMSTAT_PGSKIP_NORMAL = 123,
-  VMSTAT_PGSTEAL_DIRECT = 124,
-  VMSTAT_PGSTEAL_KSWAPD = 125,
-  VMSTAT_SWAP_RA = 126,
-  VMSTAT_SWAP_RA_HIT = 127,
-  VMSTAT_WORKINGSET_RESTORE = 128,
-};
-}  // namespace perfetto
-}  // namespace protos
-}  // namespace gen
-
-#endif  // PERFETTO_PROTOS_PROTOS_PERFETTO_COMMON_SYS_STATS_COUNTERS_PROTO_CPP_H_
-// gen_amalgamated begin header: gen/protos/perfetto/common/trace_stats.gen.h
-// DO NOT EDIT. Autogenerated by Perfetto cppgen_plugin
-#ifndef PERFETTO_PROTOS_PROTOS_PERFETTO_COMMON_TRACE_STATS_PROTO_CPP_H_
-#define PERFETTO_PROTOS_PROTOS_PERFETTO_COMMON_TRACE_STATS_PROTO_CPP_H_
-
-#include <stdint.h>
-#include <bitset>
-#include <vector>
-#include <string>
-#include <type_traits>
-
-// gen_amalgamated expanded: #include "perfetto/protozero/cpp_message_obj.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/copyable_ptr.h"
-// gen_amalgamated expanded: #include "perfetto/base/export.h"
-
-namespace perfetto {
-namespace protos {
-namespace gen {
-class TraceStats;
-class TraceStats_FilterStats;
-class TraceStats_BufferStats;
-}  // namespace perfetto
-}  // namespace protos
-}  // namespace gen
-
-namespace protozero {
-class Message;
-}  // namespace protozero
-
-namespace perfetto {
-namespace protos {
-namespace gen {
-
-class PERFETTO_EXPORT TraceStats : public ::protozero::CppMessageObj {
- public:
-  using BufferStats = TraceStats_BufferStats;
-  using FilterStats = TraceStats_FilterStats;
-  enum FieldNumbers {
-    kBufferStatsFieldNumber = 1,
-    kProducersConnectedFieldNumber = 2,
-    kProducersSeenFieldNumber = 3,
-    kDataSourcesRegisteredFieldNumber = 4,
-    kDataSourcesSeenFieldNumber = 5,
-    kTracingSessionsFieldNumber = 6,
-    kTotalBuffersFieldNumber = 7,
-    kChunksDiscardedFieldNumber = 8,
-    kPatchesDiscardedFieldNumber = 9,
-    kInvalidPacketsFieldNumber = 10,
-    kFilterStatsFieldNumber = 11,
-  };
-
-  TraceStats();
-  ~TraceStats() override;
-  TraceStats(TraceStats&&) noexcept;
-  TraceStats& operator=(TraceStats&&);
-  TraceStats(const TraceStats&);
-  TraceStats& operator=(const TraceStats&);
-  bool operator==(const TraceStats&) const;
-  bool operator!=(const TraceStats& other) const { return !(*this == other); }
-
-  bool ParseFromArray(const void*, size_t) override;
-  std::string SerializeAsString() const override;
-  std::vector<uint8_t> SerializeAsArray() const override;
-  void Serialize(::protozero::Message*) const;
-
-  const std::vector<TraceStats_BufferStats>& buffer_stats() const { return buffer_stats_; }
-  std::vector<TraceStats_BufferStats>* mutable_buffer_stats() { return &buffer_stats_; }
-  int buffer_stats_size() const;
-  void clear_buffer_stats();
-  TraceStats_BufferStats* add_buffer_stats();
-
-  bool has_producers_connected() const { return _has_field_[2]; }
-  uint32_t producers_connected() const { return producers_connected_; }
-  void set_producers_connected(uint32_t value) { producers_connected_ = value; _has_field_.set(2); }
-
-  bool has_producers_seen() const { return _has_field_[3]; }
-  uint64_t producers_seen() const { return producers_seen_; }
-  void set_producers_seen(uint64_t value) { producers_seen_ = value; _has_field_.set(3); }
-
-  bool has_data_sources_registered() const { return _has_field_[4]; }
-  uint32_t data_sources_registered() const { return data_sources_registered_; }
-  void set_data_sources_registered(uint32_t value) { data_sources_registered_ = value; _has_field_.set(4); }
-
-  bool has_data_sources_seen() const { return _has_field_[5]; }
-  uint64_t data_sources_seen() const { return data_sources_seen_; }
-  void set_data_sources_seen(uint64_t value) { data_sources_seen_ = value; _has_field_.set(5); }
-
-  bool has_tracing_sessions() const { return _has_field_[6]; }
-  uint32_t tracing_sessions() const { return tracing_sessions_; }
-  void set_tracing_sessions(uint32_t value) { tracing_sessions_ = value; _has_field_.set(6); }
-
-  bool has_total_buffers() const { return _has_field_[7]; }
-  uint32_t total_buffers() const { return total_buffers_; }
-  void set_total_buffers(uint32_t value) { total_buffers_ = value; _has_field_.set(7); }
-
-  bool has_chunks_discarded() const { return _has_field_[8]; }
-  uint64_t chunks_discarded() const { return chunks_discarded_; }
-  void set_chunks_discarded(uint64_t value) { chunks_discarded_ = value; _has_field_.set(8); }
-
-  bool has_patches_discarded() const { return _has_field_[9]; }
-  uint64_t patches_discarded() const { return patches_discarded_; }
-  void set_patches_discarded(uint64_t value) { patches_discarded_ = value; _has_field_.set(9); }
-
-  bool has_invalid_packets() const { return _has_field_[10]; }
-  uint64_t invalid_packets() const { return invalid_packets_; }
-  void set_invalid_packets(uint64_t value) { invalid_packets_ = value; _has_field_.set(10); }
-
-  bool has_filter_stats() const { return _has_field_[11]; }
-  const TraceStats_FilterStats& filter_stats() const { return *filter_stats_; }
-  TraceStats_FilterStats* mutable_filter_stats() { _has_field_.set(11); return filter_stats_.get(); }
-
- private:
-  std::vector<TraceStats_BufferStats> buffer_stats_;
-  uint32_t producers_connected_{};
-  uint64_t producers_seen_{};
-  uint32_t data_sources_registered_{};
-  uint64_t data_sources_seen_{};
-  uint32_t tracing_sessions_{};
-  uint32_t total_buffers_{};
-  uint64_t chunks_discarded_{};
-  uint64_t patches_discarded_{};
-  uint64_t invalid_packets_{};
-  ::protozero::CopyablePtr<TraceStats_FilterStats> filter_stats_;
-
-  // Allows to preserve unknown protobuf fields for compatibility
-  // with future versions of .proto files.
-  std::string unknown_fields_;
-
-  std::bitset<12> _has_field_{};
-};
-
-
-class PERFETTO_EXPORT TraceStats_FilterStats : public ::protozero::CppMessageObj {
- public:
-  enum FieldNumbers {
-    kInputPacketsFieldNumber = 1,
-    kInputBytesFieldNumber = 2,
-    kOutputBytesFieldNumber = 3,
-    kErrorsFieldNumber = 4,
-  };
-
-  TraceStats_FilterStats();
-  ~TraceStats_FilterStats() override;
-  TraceStats_FilterStats(TraceStats_FilterStats&&) noexcept;
-  TraceStats_FilterStats& operator=(TraceStats_FilterStats&&);
-  TraceStats_FilterStats(const TraceStats_FilterStats&);
-  TraceStats_FilterStats& operator=(const TraceStats_FilterStats&);
-  bool operator==(const TraceStats_FilterStats&) const;
-  bool operator!=(const TraceStats_FilterStats& other) const { return !(*this == other); }
-
-  bool ParseFromArray(const void*, size_t) override;
-  std::string SerializeAsString() const override;
-  std::vector<uint8_t> SerializeAsArray() const override;
-  void Serialize(::protozero::Message*) const;
-
-  bool has_input_packets() const { return _has_field_[1]; }
-  uint64_t input_packets() const { return input_packets_; }
-  void set_input_packets(uint64_t value) { input_packets_ = value; _has_field_.set(1); }
-
-  bool has_input_bytes() const { return _has_field_[2]; }
-  uint64_t input_bytes() const { return input_bytes_; }
-  void set_input_bytes(uint64_t value) { input_bytes_ = value; _has_field_.set(2); }
-
-  bool has_output_bytes() const { return _has_field_[3]; }
-  uint64_t output_bytes() const { return output_bytes_; }
-  void set_output_bytes(uint64_t value) { output_bytes_ = value; _has_field_.set(3); }
-
-  bool has_errors() const { return _has_field_[4]; }
-  uint64_t errors() const { return errors_; }
-  void set_errors(uint64_t value) { errors_ = value; _has_field_.set(4); }
-
- private:
-  uint64_t input_packets_{};
-  uint64_t input_bytes_{};
-  uint64_t output_bytes_{};
-  uint64_t errors_{};
-
-  // Allows to preserve unknown protobuf fields for compatibility
-  // with future versions of .proto files.
-  std::string unknown_fields_;
-
-  std::bitset<5> _has_field_{};
-};
-
-
-class PERFETTO_EXPORT TraceStats_BufferStats : public ::protozero::CppMessageObj {
- public:
-  enum FieldNumbers {
-    kBufferSizeFieldNumber = 12,
-    kBytesWrittenFieldNumber = 1,
-    kBytesOverwrittenFieldNumber = 13,
-    kBytesReadFieldNumber = 14,
-    kPaddingBytesWrittenFieldNumber = 15,
-    kPaddingBytesClearedFieldNumber = 16,
-    kChunksWrittenFieldNumber = 2,
-    kChunksRewrittenFieldNumber = 10,
-    kChunksOverwrittenFieldNumber = 3,
-    kChunksDiscardedFieldNumber = 18,
-    kChunksReadFieldNumber = 17,
-    kChunksCommittedOutOfOrderFieldNumber = 11,
-    kWriteWrapCountFieldNumber = 4,
-    kPatchesSucceededFieldNumber = 5,
-    kPatchesFailedFieldNumber = 6,
-    kReadaheadsSucceededFieldNumber = 7,
-    kReadaheadsFailedFieldNumber = 8,
-    kAbiViolationsFieldNumber = 9,
-    kTraceWriterPacketLossFieldNumber = 19,
-  };
-
-  TraceStats_BufferStats();
-  ~TraceStats_BufferStats() override;
-  TraceStats_BufferStats(TraceStats_BufferStats&&) noexcept;
-  TraceStats_BufferStats& operator=(TraceStats_BufferStats&&);
-  TraceStats_BufferStats(const TraceStats_BufferStats&);
-  TraceStats_BufferStats& operator=(const TraceStats_BufferStats&);
-  bool operator==(const TraceStats_BufferStats&) const;
-  bool operator!=(const TraceStats_BufferStats& other) const { return !(*this == other); }
-
-  bool ParseFromArray(const void*, size_t) override;
-  std::string SerializeAsString() const override;
-  std::vector<uint8_t> SerializeAsArray() const override;
-  void Serialize(::protozero::Message*) const;
-
-  bool has_buffer_size() const { return _has_field_[12]; }
-  uint64_t buffer_size() const { return buffer_size_; }
-  void set_buffer_size(uint64_t value) { buffer_size_ = value; _has_field_.set(12); }
-
-  bool has_bytes_written() const { return _has_field_[1]; }
-  uint64_t bytes_written() const { return bytes_written_; }
-  void set_bytes_written(uint64_t value) { bytes_written_ = value; _has_field_.set(1); }
-
-  bool has_bytes_overwritten() const { return _has_field_[13]; }
-  uint64_t bytes_overwritten() const { return bytes_overwritten_; }
-  void set_bytes_overwritten(uint64_t value) { bytes_overwritten_ = value; _has_field_.set(13); }
-
-  bool has_bytes_read() const { return _has_field_[14]; }
-  uint64_t bytes_read() const { return bytes_read_; }
-  void set_bytes_read(uint64_t value) { bytes_read_ = value; _has_field_.set(14); }
-
-  bool has_padding_bytes_written() const { return _has_field_[15]; }
-  uint64_t padding_bytes_written() const { return padding_bytes_written_; }
-  void set_padding_bytes_written(uint64_t value) { padding_bytes_written_ = value; _has_field_.set(15); }
-
-  bool has_padding_bytes_cleared() const { return _has_field_[16]; }
-  uint64_t padding_bytes_cleared() const { return padding_bytes_cleared_; }
-  void set_padding_bytes_cleared(uint64_t value) { padding_bytes_cleared_ = value; _has_field_.set(16); }
-
-  bool has_chunks_written() const { return _has_field_[2]; }
-  uint64_t chunks_written() const { return chunks_written_; }
-  void set_chunks_written(uint64_t value) { chunks_written_ = value; _has_field_.set(2); }
-
-  bool has_chunks_rewritten() const { return _has_field_[10]; }
-  uint64_t chunks_rewritten() const { return chunks_rewritten_; }
-  void set_chunks_rewritten(uint64_t value) { chunks_rewritten_ = value; _has_field_.set(10); }
-
-  bool has_chunks_overwritten() const { return _has_field_[3]; }
-  uint64_t chunks_overwritten() const { return chunks_overwritten_; }
-  void set_chunks_overwritten(uint64_t value) { chunks_overwritten_ = value; _has_field_.set(3); }
-
-  bool has_chunks_discarded() const { return _has_field_[18]; }
-  uint64_t chunks_discarded() const { return chunks_discarded_; }
-  void set_chunks_discarded(uint64_t value) { chunks_discarded_ = value; _has_field_.set(18); }
-
-  bool has_chunks_read() const { return _has_field_[17]; }
-  uint64_t chunks_read() const { return chunks_read_; }
-  void set_chunks_read(uint64_t value) { chunks_read_ = value; _has_field_.set(17); }
-
-  bool has_chunks_committed_out_of_order() const { return _has_field_[11]; }
-  uint64_t chunks_committed_out_of_order() const { return chunks_committed_out_of_order_; }
-  void set_chunks_committed_out_of_order(uint64_t value) { chunks_committed_out_of_order_ = value; _has_field_.set(11); }
-
-  bool has_write_wrap_count() const { return _has_field_[4]; }
-  uint64_t write_wrap_count() const { return write_wrap_count_; }
-  void set_write_wrap_count(uint64_t value) { write_wrap_count_ = value; _has_field_.set(4); }
-
-  bool has_patches_succeeded() const { return _has_field_[5]; }
-  uint64_t patches_succeeded() const { return patches_succeeded_; }
-  void set_patches_succeeded(uint64_t value) { patches_succeeded_ = value; _has_field_.set(5); }
-
-  bool has_patches_failed() const { return _has_field_[6]; }
-  uint64_t patches_failed() const { return patches_failed_; }
-  void set_patches_failed(uint64_t value) { patches_failed_ = value; _has_field_.set(6); }
-
-  bool has_readaheads_succeeded() const { return _has_field_[7]; }
-  uint64_t readaheads_succeeded() const { return readaheads_succeeded_; }
-  void set_readaheads_succeeded(uint64_t value) { readaheads_succeeded_ = value; _has_field_.set(7); }
-
-  bool has_readaheads_failed() const { return _has_field_[8]; }
-  uint64_t readaheads_failed() const { return readaheads_failed_; }
-  void set_readaheads_failed(uint64_t value) { readaheads_failed_ = value; _has_field_.set(8); }
-
-  bool has_abi_violations() const { return _has_field_[9]; }
-  uint64_t abi_violations() const { return abi_violations_; }
-  void set_abi_violations(uint64_t value) { abi_violations_ = value; _has_field_.set(9); }
-
-  bool has_trace_writer_packet_loss() const { return _has_field_[19]; }
-  uint64_t trace_writer_packet_loss() const { return trace_writer_packet_loss_; }
-  void set_trace_writer_packet_loss(uint64_t value) { trace_writer_packet_loss_ = value; _has_field_.set(19); }
-
- private:
-  uint64_t buffer_size_{};
-  uint64_t bytes_written_{};
-  uint64_t bytes_overwritten_{};
-  uint64_t bytes_read_{};
-  uint64_t padding_bytes_written_{};
-  uint64_t padding_bytes_cleared_{};
-  uint64_t chunks_written_{};
-  uint64_t chunks_rewritten_{};
-  uint64_t chunks_overwritten_{};
-  uint64_t chunks_discarded_{};
-  uint64_t chunks_read_{};
-  uint64_t chunks_committed_out_of_order_{};
-  uint64_t write_wrap_count_{};
-  uint64_t patches_succeeded_{};
-  uint64_t patches_failed_{};
-  uint64_t readaheads_succeeded_{};
-  uint64_t readaheads_failed_{};
-  uint64_t abi_violations_{};
-  uint64_t trace_writer_packet_loss_{};
-
-  // Allows to preserve unknown protobuf fields for compatibility
-  // with future versions of .proto files.
-  std::string unknown_fields_;
-
-  std::bitset<20> _has_field_{};
-};
-
-}  // namespace perfetto
-}  // namespace protos
-}  // namespace gen
-
-#endif  // PERFETTO_PROTOS_PROTOS_PERFETTO_COMMON_TRACE_STATS_PROTO_CPP_H_
-// gen_amalgamated begin header: gen/protos/perfetto/common/tracing_service_capabilities.gen.h
-// DO NOT EDIT. Autogenerated by Perfetto cppgen_plugin
-#ifndef PERFETTO_PROTOS_PROTOS_PERFETTO_COMMON_TRACING_SERVICE_CAPABILITIES_PROTO_CPP_H_
-#define PERFETTO_PROTOS_PROTOS_PERFETTO_COMMON_TRACING_SERVICE_CAPABILITIES_PROTO_CPP_H_
-
-#include <stdint.h>
-#include <bitset>
-#include <vector>
-#include <string>
-#include <type_traits>
-
-// gen_amalgamated expanded: #include "perfetto/protozero/cpp_message_obj.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/copyable_ptr.h"
-// gen_amalgamated expanded: #include "perfetto/base/export.h"
-
-namespace perfetto {
-namespace protos {
-namespace gen {
-class TracingServiceCapabilities;
-enum ObservableEvents_Type : int;
-}  // namespace perfetto
-}  // namespace protos
-}  // namespace gen
-
-namespace protozero {
-class Message;
-}  // namespace protozero
-
-namespace perfetto {
-namespace protos {
-namespace gen {
-
-class PERFETTO_EXPORT TracingServiceCapabilities : public ::protozero::CppMessageObj {
- public:
-  enum FieldNumbers {
-    kHasQueryCapabilitiesFieldNumber = 1,
-    kObservableEventsFieldNumber = 2,
-    kHasTraceConfigOutputPathFieldNumber = 3,
-  };
-
-  TracingServiceCapabilities();
-  ~TracingServiceCapabilities() override;
-  TracingServiceCapabilities(TracingServiceCapabilities&&) noexcept;
-  TracingServiceCapabilities& operator=(TracingServiceCapabilities&&);
-  TracingServiceCapabilities(const TracingServiceCapabilities&);
-  TracingServiceCapabilities& operator=(const TracingServiceCapabilities&);
-  bool operator==(const TracingServiceCapabilities&) const;
-  bool operator!=(const TracingServiceCapabilities& other) const { return !(*this == other); }
-
-  bool ParseFromArray(const void*, size_t) override;
-  std::string SerializeAsString() const override;
-  std::vector<uint8_t> SerializeAsArray() const override;
-  void Serialize(::protozero::Message*) const;
-
-  bool has_has_query_capabilities() const { return _has_field_[1]; }
-  bool has_query_capabilities() const { return has_query_capabilities_; }
-  void set_has_query_capabilities(bool value) { has_query_capabilities_ = value; _has_field_.set(1); }
-
-  const std::vector<ObservableEvents_Type>& observable_events() const { return observable_events_; }
-  std::vector<ObservableEvents_Type>* mutable_observable_events() { return &observable_events_; }
-  int observable_events_size() const { return static_cast<int>(observable_events_.size()); }
-  void clear_observable_events() { observable_events_.clear(); }
-  void add_observable_events(ObservableEvents_Type value) { observable_events_.emplace_back(value); }
-  ObservableEvents_Type* add_observable_events() { observable_events_.emplace_back(); return &observable_events_.back(); }
-
-  bool has_has_trace_config_output_path() const { return _has_field_[3]; }
-  bool has_trace_config_output_path() const { return has_trace_config_output_path_; }
-  void set_has_trace_config_output_path(bool value) { has_trace_config_output_path_ = value; _has_field_.set(3); }
-
- private:
-  bool has_query_capabilities_{};
-  std::vector<ObservableEvents_Type> observable_events_;
-  bool has_trace_config_output_path_{};
-
-  // Allows to preserve unknown protobuf fields for compatibility
-  // with future versions of .proto files.
-  std::string unknown_fields_;
-
-  std::bitset<4> _has_field_{};
-};
-
-}  // namespace perfetto
-}  // namespace protos
-}  // namespace gen
-
-#endif  // PERFETTO_PROTOS_PROTOS_PERFETTO_COMMON_TRACING_SERVICE_CAPABILITIES_PROTO_CPP_H_
-// gen_amalgamated begin header: gen/protos/perfetto/common/tracing_service_state.gen.h
-// DO NOT EDIT. Autogenerated by Perfetto cppgen_plugin
-#ifndef PERFETTO_PROTOS_PROTOS_PERFETTO_COMMON_TRACING_SERVICE_STATE_PROTO_CPP_H_
-#define PERFETTO_PROTOS_PROTOS_PERFETTO_COMMON_TRACING_SERVICE_STATE_PROTO_CPP_H_
-
-#include <stdint.h>
-#include <bitset>
-#include <vector>
-#include <string>
-#include <type_traits>
-
-// gen_amalgamated expanded: #include "perfetto/protozero/cpp_message_obj.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/copyable_ptr.h"
-// gen_amalgamated expanded: #include "perfetto/base/export.h"
-
-namespace perfetto {
-namespace protos {
-namespace gen {
-class TracingServiceState;
-class TracingServiceState_DataSource;
-class DataSourceDescriptor;
-class TracingServiceState_Producer;
-}  // namespace perfetto
-}  // namespace protos
-}  // namespace gen
-
-namespace protozero {
-class Message;
-}  // namespace protozero
-
-namespace perfetto {
-namespace protos {
-namespace gen {
-
-class PERFETTO_EXPORT TracingServiceState : public ::protozero::CppMessageObj {
- public:
-  using Producer = TracingServiceState_Producer;
-  using DataSource = TracingServiceState_DataSource;
-  enum FieldNumbers {
-    kProducersFieldNumber = 1,
-    kDataSourcesFieldNumber = 2,
-    kNumSessionsFieldNumber = 3,
-    kNumSessionsStartedFieldNumber = 4,
-    kTracingServiceVersionFieldNumber = 5,
-  };
-
-  TracingServiceState();
-  ~TracingServiceState() override;
-  TracingServiceState(TracingServiceState&&) noexcept;
-  TracingServiceState& operator=(TracingServiceState&&);
-  TracingServiceState(const TracingServiceState&);
-  TracingServiceState& operator=(const TracingServiceState&);
-  bool operator==(const TracingServiceState&) const;
-  bool operator!=(const TracingServiceState& other) const { return !(*this == other); }
-
-  bool ParseFromArray(const void*, size_t) override;
-  std::string SerializeAsString() const override;
-  std::vector<uint8_t> SerializeAsArray() const override;
-  void Serialize(::protozero::Message*) const;
-
-  const std::vector<TracingServiceState_Producer>& producers() const { return producers_; }
-  std::vector<TracingServiceState_Producer>* mutable_producers() { return &producers_; }
-  int producers_size() const;
-  void clear_producers();
-  TracingServiceState_Producer* add_producers();
-
-  const std::vector<TracingServiceState_DataSource>& data_sources() const { return data_sources_; }
-  std::vector<TracingServiceState_DataSource>* mutable_data_sources() { return &data_sources_; }
-  int data_sources_size() const;
-  void clear_data_sources();
-  TracingServiceState_DataSource* add_data_sources();
-
-  bool has_num_sessions() const { return _has_field_[3]; }
-  int32_t num_sessions() const { return num_sessions_; }
-  void set_num_sessions(int32_t value) { num_sessions_ = value; _has_field_.set(3); }
-
-  bool has_num_sessions_started() const { return _has_field_[4]; }
-  int32_t num_sessions_started() const { return num_sessions_started_; }
-  void set_num_sessions_started(int32_t value) { num_sessions_started_ = value; _has_field_.set(4); }
-
-  bool has_tracing_service_version() const { return _has_field_[5]; }
-  const std::string& tracing_service_version() const { return tracing_service_version_; }
-  void set_tracing_service_version(const std::string& value) { tracing_service_version_ = value; _has_field_.set(5); }
-
- private:
-  std::vector<TracingServiceState_Producer> producers_;
-  std::vector<TracingServiceState_DataSource> data_sources_;
-  int32_t num_sessions_{};
-  int32_t num_sessions_started_{};
-  std::string tracing_service_version_{};
-
-  // Allows to preserve unknown protobuf fields for compatibility
-  // with future versions of .proto files.
-  std::string unknown_fields_;
-
-  std::bitset<6> _has_field_{};
-};
-
-
-class PERFETTO_EXPORT TracingServiceState_DataSource : public ::protozero::CppMessageObj {
- public:
-  enum FieldNumbers {
-    kDsDescriptorFieldNumber = 1,
-    kProducerIdFieldNumber = 2,
-  };
-
-  TracingServiceState_DataSource();
-  ~TracingServiceState_DataSource() override;
-  TracingServiceState_DataSource(TracingServiceState_DataSource&&) noexcept;
-  TracingServiceState_DataSource& operator=(TracingServiceState_DataSource&&);
-  TracingServiceState_DataSource(const TracingServiceState_DataSource&);
-  TracingServiceState_DataSource& operator=(const TracingServiceState_DataSource&);
-  bool operator==(const TracingServiceState_DataSource&) const;
-  bool operator!=(const TracingServiceState_DataSource& other) const { return !(*this == other); }
-
-  bool ParseFromArray(const void*, size_t) override;
-  std::string SerializeAsString() const override;
-  std::vector<uint8_t> SerializeAsArray() const override;
-  void Serialize(::protozero::Message*) const;
-
-  bool has_ds_descriptor() const { return _has_field_[1]; }
-  const DataSourceDescriptor& ds_descriptor() const { return *ds_descriptor_; }
-  DataSourceDescriptor* mutable_ds_descriptor() { _has_field_.set(1); return ds_descriptor_.get(); }
-
-  bool has_producer_id() const { return _has_field_[2]; }
-  int32_t producer_id() const { return producer_id_; }
-  void set_producer_id(int32_t value) { producer_id_ = value; _has_field_.set(2); }
-
- private:
-  ::protozero::CopyablePtr<DataSourceDescriptor> ds_descriptor_;
-  int32_t producer_id_{};
-
-  // Allows to preserve unknown protobuf fields for compatibility
-  // with future versions of .proto files.
-  std::string unknown_fields_;
-
-  std::bitset<3> _has_field_{};
-};
-
-
-class PERFETTO_EXPORT TracingServiceState_Producer : public ::protozero::CppMessageObj {
- public:
-  enum FieldNumbers {
-    kIdFieldNumber = 1,
-    kNameFieldNumber = 2,
-    kUidFieldNumber = 3,
-    kSdkVersionFieldNumber = 4,
-  };
-
-  TracingServiceState_Producer();
-  ~TracingServiceState_Producer() override;
-  TracingServiceState_Producer(TracingServiceState_Producer&&) noexcept;
-  TracingServiceState_Producer& operator=(TracingServiceState_Producer&&);
-  TracingServiceState_Producer(const TracingServiceState_Producer&);
-  TracingServiceState_Producer& operator=(const TracingServiceState_Producer&);
-  bool operator==(const TracingServiceState_Producer&) const;
-  bool operator!=(const TracingServiceState_Producer& other) const { return !(*this == other); }
-
-  bool ParseFromArray(const void*, size_t) override;
-  std::string SerializeAsString() const override;
-  std::vector<uint8_t> SerializeAsArray() const override;
-  void Serialize(::protozero::Message*) const;
-
-  bool has_id() const { return _has_field_[1]; }
-  int32_t id() const { return id_; }
-  void set_id(int32_t value) { id_ = value; _has_field_.set(1); }
-
-  bool has_name() const { return _has_field_[2]; }
-  const std::string& name() const { return name_; }
-  void set_name(const std::string& value) { name_ = value; _has_field_.set(2); }
-
-  bool has_uid() const { return _has_field_[3]; }
-  int32_t uid() const { return uid_; }
-  void set_uid(int32_t value) { uid_ = value; _has_field_.set(3); }
-
-  bool has_sdk_version() const { return _has_field_[4]; }
-  const std::string& sdk_version() const { return sdk_version_; }
-  void set_sdk_version(const std::string& value) { sdk_version_ = value; _has_field_.set(4); }
-
- private:
-  int32_t id_{};
-  std::string name_{};
-  int32_t uid_{};
-  std::string sdk_version_{};
-
-  // Allows to preserve unknown protobuf fields for compatibility
-  // with future versions of .proto files.
-  std::string unknown_fields_;
-
-  std::bitset<5> _has_field_{};
-};
-
-}  // namespace perfetto
-}  // namespace protos
-}  // namespace gen
-
-#endif  // PERFETTO_PROTOS_PROTOS_PERFETTO_COMMON_TRACING_SERVICE_STATE_PROTO_CPP_H_
-// gen_amalgamated begin header: gen/protos/perfetto/common/track_event_descriptor.gen.h
-// DO NOT EDIT. Autogenerated by Perfetto cppgen_plugin
-#ifndef PERFETTO_PROTOS_PROTOS_PERFETTO_COMMON_TRACK_EVENT_DESCRIPTOR_PROTO_CPP_H_
-#define PERFETTO_PROTOS_PROTOS_PERFETTO_COMMON_TRACK_EVENT_DESCRIPTOR_PROTO_CPP_H_
-
-#include <stdint.h>
-#include <bitset>
-#include <vector>
-#include <string>
-#include <type_traits>
-
-// gen_amalgamated expanded: #include "perfetto/protozero/cpp_message_obj.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/copyable_ptr.h"
-// gen_amalgamated expanded: #include "perfetto/base/export.h"
-
-namespace perfetto {
-namespace protos {
-namespace gen {
-class TrackEventDescriptor;
-class TrackEventCategory;
-}  // namespace perfetto
-}  // namespace protos
-}  // namespace gen
-
-namespace protozero {
-class Message;
-}  // namespace protozero
-
-namespace perfetto {
-namespace protos {
-namespace gen {
-
-class PERFETTO_EXPORT TrackEventDescriptor : public ::protozero::CppMessageObj {
- public:
-  enum FieldNumbers {
-    kAvailableCategoriesFieldNumber = 1,
-  };
-
-  TrackEventDescriptor();
-  ~TrackEventDescriptor() override;
-  TrackEventDescriptor(TrackEventDescriptor&&) noexcept;
-  TrackEventDescriptor& operator=(TrackEventDescriptor&&);
-  TrackEventDescriptor(const TrackEventDescriptor&);
-  TrackEventDescriptor& operator=(const TrackEventDescriptor&);
-  bool operator==(const TrackEventDescriptor&) const;
-  bool operator!=(const TrackEventDescriptor& other) const { return !(*this == other); }
-
-  bool ParseFromArray(const void*, size_t) override;
-  std::string SerializeAsString() const override;
-  std::vector<uint8_t> SerializeAsArray() const override;
-  void Serialize(::protozero::Message*) const;
-
-  const std::vector<TrackEventCategory>& available_categories() const { return available_categories_; }
-  std::vector<TrackEventCategory>* mutable_available_categories() { return &available_categories_; }
-  int available_categories_size() const;
-  void clear_available_categories();
-  TrackEventCategory* add_available_categories();
-
- private:
-  std::vector<TrackEventCategory> available_categories_;
-
-  // Allows to preserve unknown protobuf fields for compatibility
-  // with future versions of .proto files.
-  std::string unknown_fields_;
-
-  std::bitset<2> _has_field_{};
-};
-
-
-class PERFETTO_EXPORT TrackEventCategory : public ::protozero::CppMessageObj {
- public:
-  enum FieldNumbers {
-    kNameFieldNumber = 1,
-    kDescriptionFieldNumber = 2,
-    kTagsFieldNumber = 3,
-  };
-
-  TrackEventCategory();
-  ~TrackEventCategory() override;
-  TrackEventCategory(TrackEventCategory&&) noexcept;
-  TrackEventCategory& operator=(TrackEventCategory&&);
-  TrackEventCategory(const TrackEventCategory&);
-  TrackEventCategory& operator=(const TrackEventCategory&);
-  bool operator==(const TrackEventCategory&) const;
-  bool operator!=(const TrackEventCategory& other) const { return !(*this == other); }
-
-  bool ParseFromArray(const void*, size_t) override;
-  std::string SerializeAsString() const override;
-  std::vector<uint8_t> SerializeAsArray() const override;
-  void Serialize(::protozero::Message*) const;
-
-  bool has_name() const { return _has_field_[1]; }
-  const std::string& name() const { return name_; }
-  void set_name(const std::string& value) { name_ = value; _has_field_.set(1); }
-
-  bool has_description() const { return _has_field_[2]; }
-  const std::string& description() const { return description_; }
-  void set_description(const std::string& value) { description_ = value; _has_field_.set(2); }
-
-  const std::vector<std::string>& tags() const { return tags_; }
-  std::vector<std::string>* mutable_tags() { return &tags_; }
-  int tags_size() const { return static_cast<int>(tags_.size()); }
-  void clear_tags() { tags_.clear(); }
-  void add_tags(std::string value) { tags_.emplace_back(value); }
-  std::string* add_tags() { tags_.emplace_back(); return &tags_.back(); }
-
- private:
-  std::string name_{};
-  std::string description_{};
-  std::vector<std::string> tags_;
-
-  // Allows to preserve unknown protobuf fields for compatibility
-  // with future versions of .proto files.
-  std::string unknown_fields_;
-
-  std::bitset<4> _has_field_{};
-};
-
-}  // namespace perfetto
-}  // namespace protos
-}  // namespace gen
-
-#endif  // PERFETTO_PROTOS_PROTOS_PERFETTO_COMMON_TRACK_EVENT_DESCRIPTOR_PROTO_CPP_H_
-// gen_amalgamated begin header: gen/protos/perfetto/common/android_energy_consumer_descriptor.pbzero.h
-// Autogenerated by the ProtoZero compiler plugin. DO NOT EDIT.
-
-#ifndef PERFETTO_PROTOS_PROTOS_PERFETTO_COMMON_ANDROID_ENERGY_CONSUMER_DESCRIPTOR_PROTO_H_
-#define PERFETTO_PROTOS_PROTOS_PERFETTO_COMMON_ANDROID_ENERGY_CONSUMER_DESCRIPTOR_PROTO_H_
-
-#include <stddef.h>
-#include <stdint.h>
-
-// gen_amalgamated expanded: #include "perfetto/protozero/field_writer.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/message.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/packed_repeated_fields.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/proto_decoder.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/proto_utils.h"
-
-namespace perfetto {
-namespace protos {
-namespace pbzero {
-
-class AndroidEnergyConsumer;
-
-class AndroidEnergyConsumerDescriptor_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/1, /*HAS_NONPACKED_REPEATED_FIELDS=*/true> {
- public:
-  AndroidEnergyConsumerDescriptor_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit AndroidEnergyConsumerDescriptor_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit AndroidEnergyConsumerDescriptor_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_energy_consumers() const { return at<1>().valid(); }
-  ::protozero::RepeatedFieldIterator<::protozero::ConstBytes> energy_consumers() const { return GetRepeated<::protozero::ConstBytes>(1); }
-};
-
-class AndroidEnergyConsumerDescriptor : public ::protozero::Message {
- public:
-  using Decoder = AndroidEnergyConsumerDescriptor_Decoder;
-  enum : int32_t {
-    kEnergyConsumersFieldNumber = 1,
-  };
-
-  using FieldMetadata_EnergyConsumers =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kRepeatedNotPacked,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      AndroidEnergyConsumer,
-      AndroidEnergyConsumerDescriptor>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_EnergyConsumers kEnergyConsumers() { return {}; }
-  template <typename T = AndroidEnergyConsumer> T* add_energy_consumers() {
-    return BeginNestedMessage<T>(1);
-  }
-
-};
-
-class AndroidEnergyConsumer_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/4, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  AndroidEnergyConsumer_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit AndroidEnergyConsumer_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit AndroidEnergyConsumer_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_energy_consumer_id() const { return at<1>().valid(); }
-  int32_t energy_consumer_id() const { return at<1>().as_int32(); }
-  bool has_ordinal() const { return at<2>().valid(); }
-  int32_t ordinal() const { return at<2>().as_int32(); }
-  bool has_type() const { return at<3>().valid(); }
-  ::protozero::ConstChars type() const { return at<3>().as_string(); }
-  bool has_name() const { return at<4>().valid(); }
-  ::protozero::ConstChars name() const { return at<4>().as_string(); }
-};
-
-class AndroidEnergyConsumer : public ::protozero::Message {
- public:
-  using Decoder = AndroidEnergyConsumer_Decoder;
-  enum : int32_t {
-    kEnergyConsumerIdFieldNumber = 1,
-    kOrdinalFieldNumber = 2,
-    kTypeFieldNumber = 3,
-    kNameFieldNumber = 4,
-  };
-
-  using FieldMetadata_EnergyConsumerId =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt32,
-      int32_t,
-      AndroidEnergyConsumer>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_EnergyConsumerId kEnergyConsumerId() { return {}; }
-  void set_energy_consumer_id(int32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_EnergyConsumerId::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Ordinal =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt32,
-      int32_t,
-      AndroidEnergyConsumer>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Ordinal kOrdinal() { return {}; }
-  void set_ordinal(int32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Ordinal::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Type =
-    ::protozero::proto_utils::FieldMetadata<
-      3,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kString,
-      std::string,
-      AndroidEnergyConsumer>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Type kType() { return {}; }
-  void set_type(const char* data, size_t size) {
-    AppendBytes(FieldMetadata_Type::kFieldId, data, size);
-  }
-  void set_type(std::string value) {
-    static constexpr uint32_t field_id = FieldMetadata_Type::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kString>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Name =
-    ::protozero::proto_utils::FieldMetadata<
-      4,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kString,
-      std::string,
-      AndroidEnergyConsumer>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Name kName() { return {}; }
-  void set_name(const char* data, size_t size) {
-    AppendBytes(FieldMetadata_Name::kFieldId, data, size);
-  }
-  void set_name(std::string value) {
-    static constexpr uint32_t field_id = FieldMetadata_Name::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kString>
-        ::Append(*this, field_id, value);
-  }
-};
-
-} // Namespace.
-} // Namespace.
-} // Namespace.
-#endif  // Include guard.
-// gen_amalgamated begin header: gen/protos/perfetto/common/android_log_constants.pbzero.h
-// Autogenerated by the ProtoZero compiler plugin. DO NOT EDIT.
-
-#ifndef PERFETTO_PROTOS_PROTOS_PERFETTO_COMMON_ANDROID_LOG_CONSTANTS_PROTO_H_
-#define PERFETTO_PROTOS_PROTOS_PERFETTO_COMMON_ANDROID_LOG_CONSTANTS_PROTO_H_
-
-#include <stddef.h>
-#include <stdint.h>
-
-// gen_amalgamated expanded: #include "perfetto/protozero/field_writer.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/message.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/packed_repeated_fields.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/proto_decoder.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/proto_utils.h"
-
-namespace perfetto {
-namespace protos {
-namespace pbzero {
-
-
-enum AndroidLogId : int32_t {
-  LID_DEFAULT = 0,
-  LID_RADIO = 1,
-  LID_EVENTS = 2,
-  LID_SYSTEM = 3,
-  LID_CRASH = 4,
-  LID_STATS = 5,
-  LID_SECURITY = 6,
-  LID_KERNEL = 7,
-};
-
-const AndroidLogId AndroidLogId_MIN = LID_DEFAULT;
-const AndroidLogId AndroidLogId_MAX = LID_KERNEL;
-
-enum AndroidLogPriority : int32_t {
-  PRIO_UNSPECIFIED = 0,
-  PRIO_UNUSED = 1,
-  PRIO_VERBOSE = 2,
-  PRIO_DEBUG = 3,
-  PRIO_INFO = 4,
-  PRIO_WARN = 5,
-  PRIO_ERROR = 6,
-  PRIO_FATAL = 7,
-};
-
-const AndroidLogPriority AndroidLogPriority_MIN = PRIO_UNSPECIFIED;
-const AndroidLogPriority AndroidLogPriority_MAX = PRIO_FATAL;
-
-} // Namespace.
-} // Namespace.
-} // Namespace.
-#endif  // Include guard.
-// gen_amalgamated begin header: gen/protos/perfetto/common/builtin_clock.pbzero.h
-// Autogenerated by the ProtoZero compiler plugin. DO NOT EDIT.
-
-#ifndef PERFETTO_PROTOS_PROTOS_PERFETTO_COMMON_BUILTIN_CLOCK_PROTO_H_
-#define PERFETTO_PROTOS_PROTOS_PERFETTO_COMMON_BUILTIN_CLOCK_PROTO_H_
-
-#include <stddef.h>
-#include <stdint.h>
-
-// gen_amalgamated expanded: #include "perfetto/protozero/field_writer.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/message.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/packed_repeated_fields.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/proto_decoder.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/proto_utils.h"
-
-namespace perfetto {
-namespace protos {
-namespace pbzero {
-
-
-enum BuiltinClock : int32_t {
-  BUILTIN_CLOCK_UNKNOWN = 0,
-  BUILTIN_CLOCK_REALTIME = 1,
-  BUILTIN_CLOCK_REALTIME_COARSE = 2,
-  BUILTIN_CLOCK_MONOTONIC = 3,
-  BUILTIN_CLOCK_MONOTONIC_COARSE = 4,
-  BUILTIN_CLOCK_MONOTONIC_RAW = 5,
-  BUILTIN_CLOCK_BOOTTIME = 6,
-  BUILTIN_CLOCK_MAX_ID = 63,
-};
-
-const BuiltinClock BuiltinClock_MIN = BUILTIN_CLOCK_UNKNOWN;
-const BuiltinClock BuiltinClock_MAX = BUILTIN_CLOCK_MAX_ID;
-
-} // Namespace.
-} // Namespace.
-} // Namespace.
-#endif  // Include guard.
-// gen_amalgamated begin header: gen/protos/perfetto/common/commit_data_request.pbzero.h
-// Autogenerated by the ProtoZero compiler plugin. DO NOT EDIT.
-
-#ifndef PERFETTO_PROTOS_PROTOS_PERFETTO_COMMON_COMMIT_DATA_REQUEST_PROTO_H_
-#define PERFETTO_PROTOS_PROTOS_PERFETTO_COMMON_COMMIT_DATA_REQUEST_PROTO_H_
-
-#include <stddef.h>
-#include <stdint.h>
-
-// gen_amalgamated expanded: #include "perfetto/protozero/field_writer.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/message.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/packed_repeated_fields.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/proto_decoder.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/proto_utils.h"
-
-namespace perfetto {
-namespace protos {
-namespace pbzero {
-
-class CommitDataRequest_ChunkToPatch;
-class CommitDataRequest_ChunkToPatch_Patch;
-class CommitDataRequest_ChunksToMove;
-
-class CommitDataRequest_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/3, /*HAS_NONPACKED_REPEATED_FIELDS=*/true> {
- public:
-  CommitDataRequest_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit CommitDataRequest_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit CommitDataRequest_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_chunks_to_move() const { return at<1>().valid(); }
-  ::protozero::RepeatedFieldIterator<::protozero::ConstBytes> chunks_to_move() const { return GetRepeated<::protozero::ConstBytes>(1); }
-  bool has_chunks_to_patch() const { return at<2>().valid(); }
-  ::protozero::RepeatedFieldIterator<::protozero::ConstBytes> chunks_to_patch() const { return GetRepeated<::protozero::ConstBytes>(2); }
-  bool has_flush_request_id() const { return at<3>().valid(); }
-  uint64_t flush_request_id() const { return at<3>().as_uint64(); }
-};
-
-class CommitDataRequest : public ::protozero::Message {
- public:
-  using Decoder = CommitDataRequest_Decoder;
-  enum : int32_t {
-    kChunksToMoveFieldNumber = 1,
-    kChunksToPatchFieldNumber = 2,
-    kFlushRequestIdFieldNumber = 3,
-  };
-  using ChunksToMove = ::perfetto::protos::pbzero::CommitDataRequest_ChunksToMove;
-  using ChunkToPatch = ::perfetto::protos::pbzero::CommitDataRequest_ChunkToPatch;
-
-  using FieldMetadata_ChunksToMove =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kRepeatedNotPacked,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      CommitDataRequest_ChunksToMove,
-      CommitDataRequest>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_ChunksToMove kChunksToMove() { return {}; }
-  template <typename T = CommitDataRequest_ChunksToMove> T* add_chunks_to_move() {
-    return BeginNestedMessage<T>(1);
-  }
-
-
-  using FieldMetadata_ChunksToPatch =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kRepeatedNotPacked,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      CommitDataRequest_ChunkToPatch,
-      CommitDataRequest>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_ChunksToPatch kChunksToPatch() { return {}; }
-  template <typename T = CommitDataRequest_ChunkToPatch> T* add_chunks_to_patch() {
-    return BeginNestedMessage<T>(2);
-  }
-
-
-  using FieldMetadata_FlushRequestId =
-    ::protozero::proto_utils::FieldMetadata<
-      3,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      CommitDataRequest>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_FlushRequestId kFlushRequestId() { return {}; }
-  void set_flush_request_id(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_FlushRequestId::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-};
-
-class CommitDataRequest_ChunkToPatch_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/5, /*HAS_NONPACKED_REPEATED_FIELDS=*/true> {
- public:
-  CommitDataRequest_ChunkToPatch_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit CommitDataRequest_ChunkToPatch_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit CommitDataRequest_ChunkToPatch_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_target_buffer() const { return at<1>().valid(); }
-  uint32_t target_buffer() const { return at<1>().as_uint32(); }
-  bool has_writer_id() const { return at<2>().valid(); }
-  uint32_t writer_id() const { return at<2>().as_uint32(); }
-  bool has_chunk_id() const { return at<3>().valid(); }
-  uint32_t chunk_id() const { return at<3>().as_uint32(); }
-  bool has_patches() const { return at<4>().valid(); }
-  ::protozero::RepeatedFieldIterator<::protozero::ConstBytes> patches() const { return GetRepeated<::protozero::ConstBytes>(4); }
-  bool has_has_more_patches() const { return at<5>().valid(); }
-  bool has_more_patches() const { return at<5>().as_bool(); }
-};
-
-class CommitDataRequest_ChunkToPatch : public ::protozero::Message {
- public:
-  using Decoder = CommitDataRequest_ChunkToPatch_Decoder;
-  enum : int32_t {
-    kTargetBufferFieldNumber = 1,
-    kWriterIdFieldNumber = 2,
-    kChunkIdFieldNumber = 3,
-    kPatchesFieldNumber = 4,
-    kHasMorePatchesFieldNumber = 5,
-  };
-  using Patch = ::perfetto::protos::pbzero::CommitDataRequest_ChunkToPatch_Patch;
-
-  using FieldMetadata_TargetBuffer =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      CommitDataRequest_ChunkToPatch>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_TargetBuffer kTargetBuffer() { return {}; }
-  void set_target_buffer(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_TargetBuffer::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_WriterId =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      CommitDataRequest_ChunkToPatch>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_WriterId kWriterId() { return {}; }
-  void set_writer_id(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_WriterId::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_ChunkId =
-    ::protozero::proto_utils::FieldMetadata<
-      3,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      CommitDataRequest_ChunkToPatch>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_ChunkId kChunkId() { return {}; }
-  void set_chunk_id(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_ChunkId::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Patches =
-    ::protozero::proto_utils::FieldMetadata<
-      4,
-      ::protozero::proto_utils::RepetitionType::kRepeatedNotPacked,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      CommitDataRequest_ChunkToPatch_Patch,
-      CommitDataRequest_ChunkToPatch>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Patches kPatches() { return {}; }
-  template <typename T = CommitDataRequest_ChunkToPatch_Patch> T* add_patches() {
-    return BeginNestedMessage<T>(4);
-  }
-
-
-  using FieldMetadata_HasMorePatches =
-    ::protozero::proto_utils::FieldMetadata<
-      5,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kBool,
-      bool,
-      CommitDataRequest_ChunkToPatch>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_HasMorePatches kHasMorePatches() { return {}; }
-  void set_has_more_patches(bool value) {
-    static constexpr uint32_t field_id = FieldMetadata_HasMorePatches::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kBool>
-        ::Append(*this, field_id, value);
-  }
-};
-
-class CommitDataRequest_ChunkToPatch_Patch_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/2, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  CommitDataRequest_ChunkToPatch_Patch_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit CommitDataRequest_ChunkToPatch_Patch_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit CommitDataRequest_ChunkToPatch_Patch_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_offset() const { return at<1>().valid(); }
-  uint32_t offset() const { return at<1>().as_uint32(); }
-  bool has_data() const { return at<2>().valid(); }
-  ::protozero::ConstBytes data() const { return at<2>().as_bytes(); }
-};
-
-class CommitDataRequest_ChunkToPatch_Patch : public ::protozero::Message {
- public:
-  using Decoder = CommitDataRequest_ChunkToPatch_Patch_Decoder;
-  enum : int32_t {
-    kOffsetFieldNumber = 1,
-    kDataFieldNumber = 2,
-  };
-
-  using FieldMetadata_Offset =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      CommitDataRequest_ChunkToPatch_Patch>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Offset kOffset() { return {}; }
-  void set_offset(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Offset::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Data =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kBytes,
-      std::string,
-      CommitDataRequest_ChunkToPatch_Patch>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Data kData() { return {}; }
-  void set_data(const uint8_t* data, size_t size) {
-    AppendBytes(FieldMetadata_Data::kFieldId, data, size);
-  }
-  void set_data(std::string value) {
-    static constexpr uint32_t field_id = FieldMetadata_Data::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kBytes>
-        ::Append(*this, field_id, value);
-  }
-};
-
-class CommitDataRequest_ChunksToMove_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/3, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  CommitDataRequest_ChunksToMove_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit CommitDataRequest_ChunksToMove_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit CommitDataRequest_ChunksToMove_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_page() const { return at<1>().valid(); }
-  uint32_t page() const { return at<1>().as_uint32(); }
-  bool has_chunk() const { return at<2>().valid(); }
-  uint32_t chunk() const { return at<2>().as_uint32(); }
-  bool has_target_buffer() const { return at<3>().valid(); }
-  uint32_t target_buffer() const { return at<3>().as_uint32(); }
-};
-
-class CommitDataRequest_ChunksToMove : public ::protozero::Message {
- public:
-  using Decoder = CommitDataRequest_ChunksToMove_Decoder;
-  enum : int32_t {
-    kPageFieldNumber = 1,
-    kChunkFieldNumber = 2,
-    kTargetBufferFieldNumber = 3,
-  };
-
-  using FieldMetadata_Page =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      CommitDataRequest_ChunksToMove>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Page kPage() { return {}; }
-  void set_page(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Page::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Chunk =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      CommitDataRequest_ChunksToMove>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Chunk kChunk() { return {}; }
-  void set_chunk(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Chunk::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_TargetBuffer =
-    ::protozero::proto_utils::FieldMetadata<
-      3,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      CommitDataRequest_ChunksToMove>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_TargetBuffer kTargetBuffer() { return {}; }
-  void set_target_buffer(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_TargetBuffer::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-};
-
-} // Namespace.
-} // Namespace.
-} // Namespace.
-#endif  // Include guard.
-// gen_amalgamated begin header: gen/protos/perfetto/common/data_source_descriptor.pbzero.h
-// Autogenerated by the ProtoZero compiler plugin. DO NOT EDIT.
-
-#ifndef PERFETTO_PROTOS_PROTOS_PERFETTO_COMMON_DATA_SOURCE_DESCRIPTOR_PROTO_H_
-#define PERFETTO_PROTOS_PROTOS_PERFETTO_COMMON_DATA_SOURCE_DESCRIPTOR_PROTO_H_
-
-#include <stddef.h>
-#include <stdint.h>
-
-// gen_amalgamated expanded: #include "perfetto/protozero/field_writer.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/message.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/packed_repeated_fields.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/proto_decoder.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/proto_utils.h"
-
-namespace perfetto {
-namespace protos {
-namespace pbzero {
-
-class GpuCounterDescriptor;
-class TrackEventDescriptor;
-
-class DataSourceDescriptor_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/6, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  DataSourceDescriptor_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit DataSourceDescriptor_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit DataSourceDescriptor_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_name() const { return at<1>().valid(); }
-  ::protozero::ConstChars name() const { return at<1>().as_string(); }
-  bool has_will_notify_on_stop() const { return at<2>().valid(); }
-  bool will_notify_on_stop() const { return at<2>().as_bool(); }
-  bool has_will_notify_on_start() const { return at<3>().valid(); }
-  bool will_notify_on_start() const { return at<3>().as_bool(); }
-  bool has_handles_incremental_state_clear() const { return at<4>().valid(); }
-  bool handles_incremental_state_clear() const { return at<4>().as_bool(); }
-  bool has_gpu_counter_descriptor() const { return at<5>().valid(); }
-  ::protozero::ConstBytes gpu_counter_descriptor() const { return at<5>().as_bytes(); }
-  bool has_track_event_descriptor() const { return at<6>().valid(); }
-  ::protozero::ConstBytes track_event_descriptor() const { return at<6>().as_bytes(); }
-};
-
-class DataSourceDescriptor : public ::protozero::Message {
- public:
-  using Decoder = DataSourceDescriptor_Decoder;
-  enum : int32_t {
-    kNameFieldNumber = 1,
-    kWillNotifyOnStopFieldNumber = 2,
-    kWillNotifyOnStartFieldNumber = 3,
-    kHandlesIncrementalStateClearFieldNumber = 4,
-    kGpuCounterDescriptorFieldNumber = 5,
-    kTrackEventDescriptorFieldNumber = 6,
-  };
-
-  using FieldMetadata_Name =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kString,
-      std::string,
-      DataSourceDescriptor>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Name kName() { return {}; }
-  void set_name(const char* data, size_t size) {
-    AppendBytes(FieldMetadata_Name::kFieldId, data, size);
-  }
-  void set_name(std::string value) {
-    static constexpr uint32_t field_id = FieldMetadata_Name::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kString>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_WillNotifyOnStop =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kBool,
-      bool,
-      DataSourceDescriptor>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_WillNotifyOnStop kWillNotifyOnStop() { return {}; }
-  void set_will_notify_on_stop(bool value) {
-    static constexpr uint32_t field_id = FieldMetadata_WillNotifyOnStop::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kBool>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_WillNotifyOnStart =
-    ::protozero::proto_utils::FieldMetadata<
-      3,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kBool,
-      bool,
-      DataSourceDescriptor>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_WillNotifyOnStart kWillNotifyOnStart() { return {}; }
-  void set_will_notify_on_start(bool value) {
-    static constexpr uint32_t field_id = FieldMetadata_WillNotifyOnStart::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kBool>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_HandlesIncrementalStateClear =
-    ::protozero::proto_utils::FieldMetadata<
-      4,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kBool,
-      bool,
-      DataSourceDescriptor>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_HandlesIncrementalStateClear kHandlesIncrementalStateClear() { return {}; }
-  void set_handles_incremental_state_clear(bool value) {
-    static constexpr uint32_t field_id = FieldMetadata_HandlesIncrementalStateClear::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kBool>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_GpuCounterDescriptor =
-    ::protozero::proto_utils::FieldMetadata<
-      5,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      GpuCounterDescriptor,
-      DataSourceDescriptor>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_GpuCounterDescriptor kGpuCounterDescriptor() { return {}; }
-  template <typename T = GpuCounterDescriptor> T* set_gpu_counter_descriptor() {
-    return BeginNestedMessage<T>(5);
-  }
-
-  void set_gpu_counter_descriptor_raw(const std::string& raw) {
-    return AppendBytes(5, raw.data(), raw.size());
-  }
-
-
-  using FieldMetadata_TrackEventDescriptor =
-    ::protozero::proto_utils::FieldMetadata<
-      6,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      TrackEventDescriptor,
-      DataSourceDescriptor>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_TrackEventDescriptor kTrackEventDescriptor() { return {}; }
-  template <typename T = TrackEventDescriptor> T* set_track_event_descriptor() {
-    return BeginNestedMessage<T>(6);
-  }
-
-  void set_track_event_descriptor_raw(const std::string& raw) {
-    return AppendBytes(6, raw.data(), raw.size());
-  }
-
-};
-
-} // Namespace.
-} // Namespace.
-} // Namespace.
-#endif  // Include guard.
-// gen_amalgamated begin header: gen/protos/perfetto/common/descriptor.pbzero.h
-// Autogenerated by the ProtoZero compiler plugin. DO NOT EDIT.
-
-#ifndef PERFETTO_PROTOS_PROTOS_PERFETTO_COMMON_DESCRIPTOR_PROTO_H_
-#define PERFETTO_PROTOS_PROTOS_PERFETTO_COMMON_DESCRIPTOR_PROTO_H_
-
-#include <stddef.h>
-#include <stdint.h>
-
-// gen_amalgamated expanded: #include "perfetto/protozero/field_writer.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/message.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/packed_repeated_fields.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/proto_decoder.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/proto_utils.h"
-
-namespace perfetto {
-namespace protos {
-namespace pbzero {
-
-class DescriptorProto;
-class DescriptorProto_ReservedRange;
-class EnumDescriptorProto;
-class EnumValueDescriptorProto;
-class FieldDescriptorProto;
-class FileDescriptorProto;
-class OneofDescriptorProto;
-class OneofOptions;
-enum FieldDescriptorProto_Label : int32_t;
-enum FieldDescriptorProto_Type : int32_t;
-
-enum FieldDescriptorProto_Type : int32_t {
-  FieldDescriptorProto_Type_TYPE_DOUBLE = 1,
-  FieldDescriptorProto_Type_TYPE_FLOAT = 2,
-  FieldDescriptorProto_Type_TYPE_INT64 = 3,
-  FieldDescriptorProto_Type_TYPE_UINT64 = 4,
-  FieldDescriptorProto_Type_TYPE_INT32 = 5,
-  FieldDescriptorProto_Type_TYPE_FIXED64 = 6,
-  FieldDescriptorProto_Type_TYPE_FIXED32 = 7,
-  FieldDescriptorProto_Type_TYPE_BOOL = 8,
-  FieldDescriptorProto_Type_TYPE_STRING = 9,
-  FieldDescriptorProto_Type_TYPE_GROUP = 10,
-  FieldDescriptorProto_Type_TYPE_MESSAGE = 11,
-  FieldDescriptorProto_Type_TYPE_BYTES = 12,
-  FieldDescriptorProto_Type_TYPE_UINT32 = 13,
-  FieldDescriptorProto_Type_TYPE_ENUM = 14,
-  FieldDescriptorProto_Type_TYPE_SFIXED32 = 15,
-  FieldDescriptorProto_Type_TYPE_SFIXED64 = 16,
-  FieldDescriptorProto_Type_TYPE_SINT32 = 17,
-  FieldDescriptorProto_Type_TYPE_SINT64 = 18,
-};
-
-const FieldDescriptorProto_Type FieldDescriptorProto_Type_MIN = FieldDescriptorProto_Type_TYPE_DOUBLE;
-const FieldDescriptorProto_Type FieldDescriptorProto_Type_MAX = FieldDescriptorProto_Type_TYPE_SINT64;
-
-enum FieldDescriptorProto_Label : int32_t {
-  FieldDescriptorProto_Label_LABEL_OPTIONAL = 1,
-  FieldDescriptorProto_Label_LABEL_REQUIRED = 2,
-  FieldDescriptorProto_Label_LABEL_REPEATED = 3,
-};
-
-const FieldDescriptorProto_Label FieldDescriptorProto_Label_MIN = FieldDescriptorProto_Label_LABEL_OPTIONAL;
-const FieldDescriptorProto_Label FieldDescriptorProto_Label_MAX = FieldDescriptorProto_Label_LABEL_REPEATED;
-
-class OneofOptions_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/0, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  OneofOptions_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit OneofOptions_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit OneofOptions_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-};
-
-class OneofOptions : public ::protozero::Message {
- public:
-  using Decoder = OneofOptions_Decoder;
-};
-
-class EnumValueDescriptorProto_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/2, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  EnumValueDescriptorProto_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit EnumValueDescriptorProto_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit EnumValueDescriptorProto_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_name() const { return at<1>().valid(); }
-  ::protozero::ConstChars name() const { return at<1>().as_string(); }
-  bool has_number() const { return at<2>().valid(); }
-  int32_t number() const { return at<2>().as_int32(); }
-};
-
-class EnumValueDescriptorProto : public ::protozero::Message {
- public:
-  using Decoder = EnumValueDescriptorProto_Decoder;
-  enum : int32_t {
-    kNameFieldNumber = 1,
-    kNumberFieldNumber = 2,
-  };
-
-  using FieldMetadata_Name =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kString,
-      std::string,
-      EnumValueDescriptorProto>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Name kName() { return {}; }
-  void set_name(const char* data, size_t size) {
-    AppendBytes(FieldMetadata_Name::kFieldId, data, size);
-  }
-  void set_name(std::string value) {
-    static constexpr uint32_t field_id = FieldMetadata_Name::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kString>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Number =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt32,
-      int32_t,
-      EnumValueDescriptorProto>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Number kNumber() { return {}; }
-  void set_number(int32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Number::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt32>
-        ::Append(*this, field_id, value);
-  }
-};
-
-class EnumDescriptorProto_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/5, /*HAS_NONPACKED_REPEATED_FIELDS=*/true> {
- public:
-  EnumDescriptorProto_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit EnumDescriptorProto_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit EnumDescriptorProto_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_name() const { return at<1>().valid(); }
-  ::protozero::ConstChars name() const { return at<1>().as_string(); }
-  bool has_value() const { return at<2>().valid(); }
-  ::protozero::RepeatedFieldIterator<::protozero::ConstBytes> value() const { return GetRepeated<::protozero::ConstBytes>(2); }
-  bool has_reserved_name() const { return at<5>().valid(); }
-  ::protozero::RepeatedFieldIterator<::protozero::ConstChars> reserved_name() const { return GetRepeated<::protozero::ConstChars>(5); }
-};
-
-class EnumDescriptorProto : public ::protozero::Message {
- public:
-  using Decoder = EnumDescriptorProto_Decoder;
-  enum : int32_t {
-    kNameFieldNumber = 1,
-    kValueFieldNumber = 2,
-    kReservedNameFieldNumber = 5,
-  };
-
-  using FieldMetadata_Name =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kString,
-      std::string,
-      EnumDescriptorProto>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Name kName() { return {}; }
-  void set_name(const char* data, size_t size) {
-    AppendBytes(FieldMetadata_Name::kFieldId, data, size);
-  }
-  void set_name(std::string value) {
-    static constexpr uint32_t field_id = FieldMetadata_Name::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kString>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Value =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kRepeatedNotPacked,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      EnumValueDescriptorProto,
-      EnumDescriptorProto>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Value kValue() { return {}; }
-  template <typename T = EnumValueDescriptorProto> T* add_value() {
-    return BeginNestedMessage<T>(2);
-  }
-
-
-  using FieldMetadata_ReservedName =
-    ::protozero::proto_utils::FieldMetadata<
-      5,
-      ::protozero::proto_utils::RepetitionType::kRepeatedNotPacked,
-      ::protozero::proto_utils::ProtoSchemaType::kString,
-      std::string,
-      EnumDescriptorProto>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_ReservedName kReservedName() { return {}; }
-  void add_reserved_name(const char* data, size_t size) {
-    AppendBytes(FieldMetadata_ReservedName::kFieldId, data, size);
-  }
-  void add_reserved_name(std::string value) {
-    static constexpr uint32_t field_id = FieldMetadata_ReservedName::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kString>
-        ::Append(*this, field_id, value);
-  }
-};
-
-class OneofDescriptorProto_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/2, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  OneofDescriptorProto_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit OneofDescriptorProto_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit OneofDescriptorProto_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_name() const { return at<1>().valid(); }
-  ::protozero::ConstChars name() const { return at<1>().as_string(); }
-  bool has_options() const { return at<2>().valid(); }
-  ::protozero::ConstBytes options() const { return at<2>().as_bytes(); }
-};
-
-class OneofDescriptorProto : public ::protozero::Message {
- public:
-  using Decoder = OneofDescriptorProto_Decoder;
-  enum : int32_t {
-    kNameFieldNumber = 1,
-    kOptionsFieldNumber = 2,
-  };
-
-  using FieldMetadata_Name =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kString,
-      std::string,
-      OneofDescriptorProto>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Name kName() { return {}; }
-  void set_name(const char* data, size_t size) {
-    AppendBytes(FieldMetadata_Name::kFieldId, data, size);
-  }
-  void set_name(std::string value) {
-    static constexpr uint32_t field_id = FieldMetadata_Name::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kString>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Options =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      OneofOptions,
-      OneofDescriptorProto>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Options kOptions() { return {}; }
-  template <typename T = OneofOptions> T* set_options() {
-    return BeginNestedMessage<T>(2);
-  }
-
-};
-
-class FieldDescriptorProto_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/9, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  FieldDescriptorProto_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit FieldDescriptorProto_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit FieldDescriptorProto_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_name() const { return at<1>().valid(); }
-  ::protozero::ConstChars name() const { return at<1>().as_string(); }
-  bool has_number() const { return at<3>().valid(); }
-  int32_t number() const { return at<3>().as_int32(); }
-  bool has_label() const { return at<4>().valid(); }
-  int32_t label() const { return at<4>().as_int32(); }
-  bool has_type() const { return at<5>().valid(); }
-  int32_t type() const { return at<5>().as_int32(); }
-  bool has_type_name() const { return at<6>().valid(); }
-  ::protozero::ConstChars type_name() const { return at<6>().as_string(); }
-  bool has_extendee() const { return at<2>().valid(); }
-  ::protozero::ConstChars extendee() const { return at<2>().as_string(); }
-  bool has_default_value() const { return at<7>().valid(); }
-  ::protozero::ConstChars default_value() const { return at<7>().as_string(); }
-  bool has_oneof_index() const { return at<9>().valid(); }
-  int32_t oneof_index() const { return at<9>().as_int32(); }
-};
-
-class FieldDescriptorProto : public ::protozero::Message {
- public:
-  using Decoder = FieldDescriptorProto_Decoder;
-  enum : int32_t {
-    kNameFieldNumber = 1,
-    kNumberFieldNumber = 3,
-    kLabelFieldNumber = 4,
-    kTypeFieldNumber = 5,
-    kTypeNameFieldNumber = 6,
-    kExtendeeFieldNumber = 2,
-    kDefaultValueFieldNumber = 7,
-    kOneofIndexFieldNumber = 9,
-  };
-  using Type = ::perfetto::protos::pbzero::FieldDescriptorProto_Type;
-  using Label = ::perfetto::protos::pbzero::FieldDescriptorProto_Label;
-  static const Type TYPE_DOUBLE = FieldDescriptorProto_Type_TYPE_DOUBLE;
-  static const Type TYPE_FLOAT = FieldDescriptorProto_Type_TYPE_FLOAT;
-  static const Type TYPE_INT64 = FieldDescriptorProto_Type_TYPE_INT64;
-  static const Type TYPE_UINT64 = FieldDescriptorProto_Type_TYPE_UINT64;
-  static const Type TYPE_INT32 = FieldDescriptorProto_Type_TYPE_INT32;
-  static const Type TYPE_FIXED64 = FieldDescriptorProto_Type_TYPE_FIXED64;
-  static const Type TYPE_FIXED32 = FieldDescriptorProto_Type_TYPE_FIXED32;
-  static const Type TYPE_BOOL = FieldDescriptorProto_Type_TYPE_BOOL;
-  static const Type TYPE_STRING = FieldDescriptorProto_Type_TYPE_STRING;
-  static const Type TYPE_GROUP = FieldDescriptorProto_Type_TYPE_GROUP;
-  static const Type TYPE_MESSAGE = FieldDescriptorProto_Type_TYPE_MESSAGE;
-  static const Type TYPE_BYTES = FieldDescriptorProto_Type_TYPE_BYTES;
-  static const Type TYPE_UINT32 = FieldDescriptorProto_Type_TYPE_UINT32;
-  static const Type TYPE_ENUM = FieldDescriptorProto_Type_TYPE_ENUM;
-  static const Type TYPE_SFIXED32 = FieldDescriptorProto_Type_TYPE_SFIXED32;
-  static const Type TYPE_SFIXED64 = FieldDescriptorProto_Type_TYPE_SFIXED64;
-  static const Type TYPE_SINT32 = FieldDescriptorProto_Type_TYPE_SINT32;
-  static const Type TYPE_SINT64 = FieldDescriptorProto_Type_TYPE_SINT64;
-  static const Label LABEL_OPTIONAL = FieldDescriptorProto_Label_LABEL_OPTIONAL;
-  static const Label LABEL_REQUIRED = FieldDescriptorProto_Label_LABEL_REQUIRED;
-  static const Label LABEL_REPEATED = FieldDescriptorProto_Label_LABEL_REPEATED;
-
-  using FieldMetadata_Name =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kString,
-      std::string,
-      FieldDescriptorProto>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Name kName() { return {}; }
-  void set_name(const char* data, size_t size) {
-    AppendBytes(FieldMetadata_Name::kFieldId, data, size);
-  }
-  void set_name(std::string value) {
-    static constexpr uint32_t field_id = FieldMetadata_Name::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kString>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Number =
-    ::protozero::proto_utils::FieldMetadata<
-      3,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt32,
-      int32_t,
-      FieldDescriptorProto>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Number kNumber() { return {}; }
-  void set_number(int32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Number::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Label =
-    ::protozero::proto_utils::FieldMetadata<
-      4,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kEnum,
-      ::perfetto::protos::pbzero::FieldDescriptorProto_Label,
-      FieldDescriptorProto>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Label kLabel() { return {}; }
-  void set_label(::perfetto::protos::pbzero::FieldDescriptorProto_Label value) {
-    static constexpr uint32_t field_id = FieldMetadata_Label::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kEnum>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Type =
-    ::protozero::proto_utils::FieldMetadata<
-      5,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kEnum,
-      ::perfetto::protos::pbzero::FieldDescriptorProto_Type,
-      FieldDescriptorProto>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Type kType() { return {}; }
-  void set_type(::perfetto::protos::pbzero::FieldDescriptorProto_Type value) {
-    static constexpr uint32_t field_id = FieldMetadata_Type::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kEnum>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_TypeName =
-    ::protozero::proto_utils::FieldMetadata<
-      6,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kString,
-      std::string,
-      FieldDescriptorProto>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_TypeName kTypeName() { return {}; }
-  void set_type_name(const char* data, size_t size) {
-    AppendBytes(FieldMetadata_TypeName::kFieldId, data, size);
-  }
-  void set_type_name(std::string value) {
-    static constexpr uint32_t field_id = FieldMetadata_TypeName::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kString>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Extendee =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kString,
-      std::string,
-      FieldDescriptorProto>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Extendee kExtendee() { return {}; }
-  void set_extendee(const char* data, size_t size) {
-    AppendBytes(FieldMetadata_Extendee::kFieldId, data, size);
-  }
-  void set_extendee(std::string value) {
-    static constexpr uint32_t field_id = FieldMetadata_Extendee::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kString>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_DefaultValue =
-    ::protozero::proto_utils::FieldMetadata<
-      7,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kString,
-      std::string,
-      FieldDescriptorProto>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_DefaultValue kDefaultValue() { return {}; }
-  void set_default_value(const char* data, size_t size) {
-    AppendBytes(FieldMetadata_DefaultValue::kFieldId, data, size);
-  }
-  void set_default_value(std::string value) {
-    static constexpr uint32_t field_id = FieldMetadata_DefaultValue::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kString>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_OneofIndex =
-    ::protozero::proto_utils::FieldMetadata<
-      9,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt32,
-      int32_t,
-      FieldDescriptorProto>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_OneofIndex kOneofIndex() { return {}; }
-  void set_oneof_index(int32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_OneofIndex::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt32>
-        ::Append(*this, field_id, value);
-  }
-};
-
-class DescriptorProto_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/10, /*HAS_NONPACKED_REPEATED_FIELDS=*/true> {
- public:
-  DescriptorProto_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit DescriptorProto_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit DescriptorProto_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_name() const { return at<1>().valid(); }
-  ::protozero::ConstChars name() const { return at<1>().as_string(); }
-  bool has_field() const { return at<2>().valid(); }
-  ::protozero::RepeatedFieldIterator<::protozero::ConstBytes> field() const { return GetRepeated<::protozero::ConstBytes>(2); }
-  bool has_extension() const { return at<6>().valid(); }
-  ::protozero::RepeatedFieldIterator<::protozero::ConstBytes> extension() const { return GetRepeated<::protozero::ConstBytes>(6); }
-  bool has_nested_type() const { return at<3>().valid(); }
-  ::protozero::RepeatedFieldIterator<::protozero::ConstBytes> nested_type() const { return GetRepeated<::protozero::ConstBytes>(3); }
-  bool has_enum_type() const { return at<4>().valid(); }
-  ::protozero::RepeatedFieldIterator<::protozero::ConstBytes> enum_type() const { return GetRepeated<::protozero::ConstBytes>(4); }
-  bool has_oneof_decl() const { return at<8>().valid(); }
-  ::protozero::RepeatedFieldIterator<::protozero::ConstBytes> oneof_decl() const { return GetRepeated<::protozero::ConstBytes>(8); }
-  bool has_reserved_range() const { return at<9>().valid(); }
-  ::protozero::RepeatedFieldIterator<::protozero::ConstBytes> reserved_range() const { return GetRepeated<::protozero::ConstBytes>(9); }
-  bool has_reserved_name() const { return at<10>().valid(); }
-  ::protozero::RepeatedFieldIterator<::protozero::ConstChars> reserved_name() const { return GetRepeated<::protozero::ConstChars>(10); }
-};
-
-class DescriptorProto : public ::protozero::Message {
- public:
-  using Decoder = DescriptorProto_Decoder;
-  enum : int32_t {
-    kNameFieldNumber = 1,
-    kFieldFieldNumber = 2,
-    kExtensionFieldNumber = 6,
-    kNestedTypeFieldNumber = 3,
-    kEnumTypeFieldNumber = 4,
-    kOneofDeclFieldNumber = 8,
-    kReservedRangeFieldNumber = 9,
-    kReservedNameFieldNumber = 10,
-  };
-  using ReservedRange = ::perfetto::protos::pbzero::DescriptorProto_ReservedRange;
-
-  using FieldMetadata_Name =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kString,
-      std::string,
-      DescriptorProto>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Name kName() { return {}; }
-  void set_name(const char* data, size_t size) {
-    AppendBytes(FieldMetadata_Name::kFieldId, data, size);
-  }
-  void set_name(std::string value) {
-    static constexpr uint32_t field_id = FieldMetadata_Name::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kString>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Field =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kRepeatedNotPacked,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      FieldDescriptorProto,
-      DescriptorProto>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Field kField() { return {}; }
-  template <typename T = FieldDescriptorProto> T* add_field() {
-    return BeginNestedMessage<T>(2);
-  }
-
-
-  using FieldMetadata_Extension =
-    ::protozero::proto_utils::FieldMetadata<
-      6,
-      ::protozero::proto_utils::RepetitionType::kRepeatedNotPacked,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      FieldDescriptorProto,
-      DescriptorProto>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Extension kExtension() { return {}; }
-  template <typename T = FieldDescriptorProto> T* add_extension() {
-    return BeginNestedMessage<T>(6);
-  }
-
-
-  using FieldMetadata_NestedType =
-    ::protozero::proto_utils::FieldMetadata<
-      3,
-      ::protozero::proto_utils::RepetitionType::kRepeatedNotPacked,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      DescriptorProto,
-      DescriptorProto>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_NestedType kNestedType() { return {}; }
-  template <typename T = DescriptorProto> T* add_nested_type() {
-    return BeginNestedMessage<T>(3);
-  }
-
-
-  using FieldMetadata_EnumType =
-    ::protozero::proto_utils::FieldMetadata<
-      4,
-      ::protozero::proto_utils::RepetitionType::kRepeatedNotPacked,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      EnumDescriptorProto,
-      DescriptorProto>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_EnumType kEnumType() { return {}; }
-  template <typename T = EnumDescriptorProto> T* add_enum_type() {
-    return BeginNestedMessage<T>(4);
-  }
-
-
-  using FieldMetadata_OneofDecl =
-    ::protozero::proto_utils::FieldMetadata<
-      8,
-      ::protozero::proto_utils::RepetitionType::kRepeatedNotPacked,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      OneofDescriptorProto,
-      DescriptorProto>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_OneofDecl kOneofDecl() { return {}; }
-  template <typename T = OneofDescriptorProto> T* add_oneof_decl() {
-    return BeginNestedMessage<T>(8);
-  }
-
-
-  using FieldMetadata_ReservedRange =
-    ::protozero::proto_utils::FieldMetadata<
-      9,
-      ::protozero::proto_utils::RepetitionType::kRepeatedNotPacked,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      DescriptorProto_ReservedRange,
-      DescriptorProto>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_ReservedRange kReservedRange() { return {}; }
-  template <typename T = DescriptorProto_ReservedRange> T* add_reserved_range() {
-    return BeginNestedMessage<T>(9);
-  }
-
-
-  using FieldMetadata_ReservedName =
-    ::protozero::proto_utils::FieldMetadata<
-      10,
-      ::protozero::proto_utils::RepetitionType::kRepeatedNotPacked,
-      ::protozero::proto_utils::ProtoSchemaType::kString,
-      std::string,
-      DescriptorProto>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_ReservedName kReservedName() { return {}; }
-  void add_reserved_name(const char* data, size_t size) {
-    AppendBytes(FieldMetadata_ReservedName::kFieldId, data, size);
-  }
-  void add_reserved_name(std::string value) {
-    static constexpr uint32_t field_id = FieldMetadata_ReservedName::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kString>
-        ::Append(*this, field_id, value);
-  }
-};
-
-class DescriptorProto_ReservedRange_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/2, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  DescriptorProto_ReservedRange_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit DescriptorProto_ReservedRange_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit DescriptorProto_ReservedRange_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_start() const { return at<1>().valid(); }
-  int32_t start() const { return at<1>().as_int32(); }
-  bool has_end() const { return at<2>().valid(); }
-  int32_t end() const { return at<2>().as_int32(); }
-};
-
-class DescriptorProto_ReservedRange : public ::protozero::Message {
- public:
-  using Decoder = DescriptorProto_ReservedRange_Decoder;
-  enum : int32_t {
-    kStartFieldNumber = 1,
-    kEndFieldNumber = 2,
-  };
-
-  using FieldMetadata_Start =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt32,
-      int32_t,
-      DescriptorProto_ReservedRange>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Start kStart() { return {}; }
-  void set_start(int32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Start::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_End =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt32,
-      int32_t,
-      DescriptorProto_ReservedRange>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_End kEnd() { return {}; }
-  void set_end(int32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_End::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt32>
-        ::Append(*this, field_id, value);
-  }
-};
-
-class FileDescriptorProto_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/11, /*HAS_NONPACKED_REPEATED_FIELDS=*/true> {
- public:
-  FileDescriptorProto_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit FileDescriptorProto_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit FileDescriptorProto_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_name() const { return at<1>().valid(); }
-  ::protozero::ConstChars name() const { return at<1>().as_string(); }
-  bool has_package() const { return at<2>().valid(); }
-  ::protozero::ConstChars package() const { return at<2>().as_string(); }
-  bool has_dependency() const { return at<3>().valid(); }
-  ::protozero::RepeatedFieldIterator<::protozero::ConstChars> dependency() const { return GetRepeated<::protozero::ConstChars>(3); }
-  bool has_public_dependency() const { return at<10>().valid(); }
-  ::protozero::RepeatedFieldIterator<int32_t> public_dependency() const { return GetRepeated<int32_t>(10); }
-  bool has_weak_dependency() const { return at<11>().valid(); }
-  ::protozero::RepeatedFieldIterator<int32_t> weak_dependency() const { return GetRepeated<int32_t>(11); }
-  bool has_message_type() const { return at<4>().valid(); }
-  ::protozero::RepeatedFieldIterator<::protozero::ConstBytes> message_type() const { return GetRepeated<::protozero::ConstBytes>(4); }
-  bool has_enum_type() const { return at<5>().valid(); }
-  ::protozero::RepeatedFieldIterator<::protozero::ConstBytes> enum_type() const { return GetRepeated<::protozero::ConstBytes>(5); }
-  bool has_extension() const { return at<7>().valid(); }
-  ::protozero::RepeatedFieldIterator<::protozero::ConstBytes> extension() const { return GetRepeated<::protozero::ConstBytes>(7); }
-};
-
-class FileDescriptorProto : public ::protozero::Message {
- public:
-  using Decoder = FileDescriptorProto_Decoder;
-  enum : int32_t {
-    kNameFieldNumber = 1,
-    kPackageFieldNumber = 2,
-    kDependencyFieldNumber = 3,
-    kPublicDependencyFieldNumber = 10,
-    kWeakDependencyFieldNumber = 11,
-    kMessageTypeFieldNumber = 4,
-    kEnumTypeFieldNumber = 5,
-    kExtensionFieldNumber = 7,
-  };
-
-  using FieldMetadata_Name =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kString,
-      std::string,
-      FileDescriptorProto>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Name kName() { return {}; }
-  void set_name(const char* data, size_t size) {
-    AppendBytes(FieldMetadata_Name::kFieldId, data, size);
-  }
-  void set_name(std::string value) {
-    static constexpr uint32_t field_id = FieldMetadata_Name::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kString>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Package =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kString,
-      std::string,
-      FileDescriptorProto>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Package kPackage() { return {}; }
-  void set_package(const char* data, size_t size) {
-    AppendBytes(FieldMetadata_Package::kFieldId, data, size);
-  }
-  void set_package(std::string value) {
-    static constexpr uint32_t field_id = FieldMetadata_Package::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kString>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Dependency =
-    ::protozero::proto_utils::FieldMetadata<
-      3,
-      ::protozero::proto_utils::RepetitionType::kRepeatedNotPacked,
-      ::protozero::proto_utils::ProtoSchemaType::kString,
-      std::string,
-      FileDescriptorProto>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Dependency kDependency() { return {}; }
-  void add_dependency(const char* data, size_t size) {
-    AppendBytes(FieldMetadata_Dependency::kFieldId, data, size);
-  }
-  void add_dependency(std::string value) {
-    static constexpr uint32_t field_id = FieldMetadata_Dependency::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kString>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_PublicDependency =
-    ::protozero::proto_utils::FieldMetadata<
-      10,
-      ::protozero::proto_utils::RepetitionType::kRepeatedNotPacked,
-      ::protozero::proto_utils::ProtoSchemaType::kInt32,
-      int32_t,
-      FileDescriptorProto>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_PublicDependency kPublicDependency() { return {}; }
-  void add_public_dependency(int32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_PublicDependency::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_WeakDependency =
-    ::protozero::proto_utils::FieldMetadata<
-      11,
-      ::protozero::proto_utils::RepetitionType::kRepeatedNotPacked,
-      ::protozero::proto_utils::ProtoSchemaType::kInt32,
-      int32_t,
-      FileDescriptorProto>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_WeakDependency kWeakDependency() { return {}; }
-  void add_weak_dependency(int32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_WeakDependency::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_MessageType =
-    ::protozero::proto_utils::FieldMetadata<
-      4,
-      ::protozero::proto_utils::RepetitionType::kRepeatedNotPacked,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      DescriptorProto,
-      FileDescriptorProto>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_MessageType kMessageType() { return {}; }
-  template <typename T = DescriptorProto> T* add_message_type() {
-    return BeginNestedMessage<T>(4);
-  }
-
-
-  using FieldMetadata_EnumType =
-    ::protozero::proto_utils::FieldMetadata<
-      5,
-      ::protozero::proto_utils::RepetitionType::kRepeatedNotPacked,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      EnumDescriptorProto,
-      FileDescriptorProto>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_EnumType kEnumType() { return {}; }
-  template <typename T = EnumDescriptorProto> T* add_enum_type() {
-    return BeginNestedMessage<T>(5);
-  }
-
-
-  using FieldMetadata_Extension =
-    ::protozero::proto_utils::FieldMetadata<
-      7,
-      ::protozero::proto_utils::RepetitionType::kRepeatedNotPacked,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      FieldDescriptorProto,
-      FileDescriptorProto>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Extension kExtension() { return {}; }
-  template <typename T = FieldDescriptorProto> T* add_extension() {
-    return BeginNestedMessage<T>(7);
-  }
-
-};
-
-class FileDescriptorSet_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/1, /*HAS_NONPACKED_REPEATED_FIELDS=*/true> {
- public:
-  FileDescriptorSet_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit FileDescriptorSet_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit FileDescriptorSet_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_file() const { return at<1>().valid(); }
-  ::protozero::RepeatedFieldIterator<::protozero::ConstBytes> file() const { return GetRepeated<::protozero::ConstBytes>(1); }
-};
-
-class FileDescriptorSet : public ::protozero::Message {
- public:
-  using Decoder = FileDescriptorSet_Decoder;
-  enum : int32_t {
-    kFileFieldNumber = 1,
-  };
-
-  using FieldMetadata_File =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kRepeatedNotPacked,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      FileDescriptorProto,
-      FileDescriptorSet>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_File kFile() { return {}; }
-  template <typename T = FileDescriptorProto> T* add_file() {
-    return BeginNestedMessage<T>(1);
-  }
-
-};
-
-} // Namespace.
-} // Namespace.
-} // Namespace.
-#endif  // Include guard.
-// gen_amalgamated begin header: gen/protos/perfetto/common/gpu_counter_descriptor.pbzero.h
-// Autogenerated by the ProtoZero compiler plugin. DO NOT EDIT.
-
-#ifndef PERFETTO_PROTOS_PROTOS_PERFETTO_COMMON_GPU_COUNTER_DESCRIPTOR_PROTO_H_
-#define PERFETTO_PROTOS_PROTOS_PERFETTO_COMMON_GPU_COUNTER_DESCRIPTOR_PROTO_H_
-
-#include <stddef.h>
-#include <stdint.h>
-
-// gen_amalgamated expanded: #include "perfetto/protozero/field_writer.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/message.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/packed_repeated_fields.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/proto_decoder.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/proto_utils.h"
-
-namespace perfetto {
-namespace protos {
-namespace pbzero {
-
-class GpuCounterDescriptor_GpuCounterBlock;
-class GpuCounterDescriptor_GpuCounterSpec;
-enum GpuCounterDescriptor_GpuCounterGroup : int32_t;
-enum GpuCounterDescriptor_MeasureUnit : int32_t;
-
-enum GpuCounterDescriptor_GpuCounterGroup : int32_t {
-  GpuCounterDescriptor_GpuCounterGroup_UNCLASSIFIED = 0,
-  GpuCounterDescriptor_GpuCounterGroup_SYSTEM = 1,
-  GpuCounterDescriptor_GpuCounterGroup_VERTICES = 2,
-  GpuCounterDescriptor_GpuCounterGroup_FRAGMENTS = 3,
-  GpuCounterDescriptor_GpuCounterGroup_PRIMITIVES = 4,
-  GpuCounterDescriptor_GpuCounterGroup_MEMORY = 5,
-  GpuCounterDescriptor_GpuCounterGroup_COMPUTE = 6,
-};
-
-const GpuCounterDescriptor_GpuCounterGroup GpuCounterDescriptor_GpuCounterGroup_MIN = GpuCounterDescriptor_GpuCounterGroup_UNCLASSIFIED;
-const GpuCounterDescriptor_GpuCounterGroup GpuCounterDescriptor_GpuCounterGroup_MAX = GpuCounterDescriptor_GpuCounterGroup_COMPUTE;
-
-enum GpuCounterDescriptor_MeasureUnit : int32_t {
-  GpuCounterDescriptor_MeasureUnit_NONE = 0,
-  GpuCounterDescriptor_MeasureUnit_BIT = 1,
-  GpuCounterDescriptor_MeasureUnit_KILOBIT = 2,
-  GpuCounterDescriptor_MeasureUnit_MEGABIT = 3,
-  GpuCounterDescriptor_MeasureUnit_GIGABIT = 4,
-  GpuCounterDescriptor_MeasureUnit_TERABIT = 5,
-  GpuCounterDescriptor_MeasureUnit_PETABIT = 6,
-  GpuCounterDescriptor_MeasureUnit_BYTE = 7,
-  GpuCounterDescriptor_MeasureUnit_KILOBYTE = 8,
-  GpuCounterDescriptor_MeasureUnit_MEGABYTE = 9,
-  GpuCounterDescriptor_MeasureUnit_GIGABYTE = 10,
-  GpuCounterDescriptor_MeasureUnit_TERABYTE = 11,
-  GpuCounterDescriptor_MeasureUnit_PETABYTE = 12,
-  GpuCounterDescriptor_MeasureUnit_HERTZ = 13,
-  GpuCounterDescriptor_MeasureUnit_KILOHERTZ = 14,
-  GpuCounterDescriptor_MeasureUnit_MEGAHERTZ = 15,
-  GpuCounterDescriptor_MeasureUnit_GIGAHERTZ = 16,
-  GpuCounterDescriptor_MeasureUnit_TERAHERTZ = 17,
-  GpuCounterDescriptor_MeasureUnit_PETAHERTZ = 18,
-  GpuCounterDescriptor_MeasureUnit_NANOSECOND = 19,
-  GpuCounterDescriptor_MeasureUnit_MICROSECOND = 20,
-  GpuCounterDescriptor_MeasureUnit_MILLISECOND = 21,
-  GpuCounterDescriptor_MeasureUnit_SECOND = 22,
-  GpuCounterDescriptor_MeasureUnit_MINUTE = 23,
-  GpuCounterDescriptor_MeasureUnit_HOUR = 24,
-  GpuCounterDescriptor_MeasureUnit_VERTEX = 25,
-  GpuCounterDescriptor_MeasureUnit_PIXEL = 26,
-  GpuCounterDescriptor_MeasureUnit_TRIANGLE = 27,
-  GpuCounterDescriptor_MeasureUnit_PRIMITIVE = 38,
-  GpuCounterDescriptor_MeasureUnit_FRAGMENT = 39,
-  GpuCounterDescriptor_MeasureUnit_MILLIWATT = 28,
-  GpuCounterDescriptor_MeasureUnit_WATT = 29,
-  GpuCounterDescriptor_MeasureUnit_KILOWATT = 30,
-  GpuCounterDescriptor_MeasureUnit_JOULE = 31,
-  GpuCounterDescriptor_MeasureUnit_VOLT = 32,
-  GpuCounterDescriptor_MeasureUnit_AMPERE = 33,
-  GpuCounterDescriptor_MeasureUnit_CELSIUS = 34,
-  GpuCounterDescriptor_MeasureUnit_FAHRENHEIT = 35,
-  GpuCounterDescriptor_MeasureUnit_KELVIN = 36,
-  GpuCounterDescriptor_MeasureUnit_PERCENT = 37,
-  GpuCounterDescriptor_MeasureUnit_INSTRUCTION = 40,
-};
-
-const GpuCounterDescriptor_MeasureUnit GpuCounterDescriptor_MeasureUnit_MIN = GpuCounterDescriptor_MeasureUnit_NONE;
-const GpuCounterDescriptor_MeasureUnit GpuCounterDescriptor_MeasureUnit_MAX = GpuCounterDescriptor_MeasureUnit_INSTRUCTION;
-
-class GpuCounterDescriptor_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/5, /*HAS_NONPACKED_REPEATED_FIELDS=*/true> {
- public:
-  GpuCounterDescriptor_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit GpuCounterDescriptor_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit GpuCounterDescriptor_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_specs() const { return at<1>().valid(); }
-  ::protozero::RepeatedFieldIterator<::protozero::ConstBytes> specs() const { return GetRepeated<::protozero::ConstBytes>(1); }
-  bool has_blocks() const { return at<2>().valid(); }
-  ::protozero::RepeatedFieldIterator<::protozero::ConstBytes> blocks() const { return GetRepeated<::protozero::ConstBytes>(2); }
-  bool has_min_sampling_period_ns() const { return at<3>().valid(); }
-  uint64_t min_sampling_period_ns() const { return at<3>().as_uint64(); }
-  bool has_max_sampling_period_ns() const { return at<4>().valid(); }
-  uint64_t max_sampling_period_ns() const { return at<4>().as_uint64(); }
-  bool has_supports_instrumented_sampling() const { return at<5>().valid(); }
-  bool supports_instrumented_sampling() const { return at<5>().as_bool(); }
-};
-
-class GpuCounterDescriptor : public ::protozero::Message {
- public:
-  using Decoder = GpuCounterDescriptor_Decoder;
-  enum : int32_t {
-    kSpecsFieldNumber = 1,
-    kBlocksFieldNumber = 2,
-    kMinSamplingPeriodNsFieldNumber = 3,
-    kMaxSamplingPeriodNsFieldNumber = 4,
-    kSupportsInstrumentedSamplingFieldNumber = 5,
-  };
-  using GpuCounterSpec = ::perfetto::protos::pbzero::GpuCounterDescriptor_GpuCounterSpec;
-  using GpuCounterBlock = ::perfetto::protos::pbzero::GpuCounterDescriptor_GpuCounterBlock;
-  using GpuCounterGroup = ::perfetto::protos::pbzero::GpuCounterDescriptor_GpuCounterGroup;
-  using MeasureUnit = ::perfetto::protos::pbzero::GpuCounterDescriptor_MeasureUnit;
-  static const GpuCounterGroup UNCLASSIFIED = GpuCounterDescriptor_GpuCounterGroup_UNCLASSIFIED;
-  static const GpuCounterGroup SYSTEM = GpuCounterDescriptor_GpuCounterGroup_SYSTEM;
-  static const GpuCounterGroup VERTICES = GpuCounterDescriptor_GpuCounterGroup_VERTICES;
-  static const GpuCounterGroup FRAGMENTS = GpuCounterDescriptor_GpuCounterGroup_FRAGMENTS;
-  static const GpuCounterGroup PRIMITIVES = GpuCounterDescriptor_GpuCounterGroup_PRIMITIVES;
-  static const GpuCounterGroup MEMORY = GpuCounterDescriptor_GpuCounterGroup_MEMORY;
-  static const GpuCounterGroup COMPUTE = GpuCounterDescriptor_GpuCounterGroup_COMPUTE;
-  static const MeasureUnit NONE = GpuCounterDescriptor_MeasureUnit_NONE;
-  static const MeasureUnit BIT = GpuCounterDescriptor_MeasureUnit_BIT;
-  static const MeasureUnit KILOBIT = GpuCounterDescriptor_MeasureUnit_KILOBIT;
-  static const MeasureUnit MEGABIT = GpuCounterDescriptor_MeasureUnit_MEGABIT;
-  static const MeasureUnit GIGABIT = GpuCounterDescriptor_MeasureUnit_GIGABIT;
-  static const MeasureUnit TERABIT = GpuCounterDescriptor_MeasureUnit_TERABIT;
-  static const MeasureUnit PETABIT = GpuCounterDescriptor_MeasureUnit_PETABIT;
-  static const MeasureUnit BYTE = GpuCounterDescriptor_MeasureUnit_BYTE;
-  static const MeasureUnit KILOBYTE = GpuCounterDescriptor_MeasureUnit_KILOBYTE;
-  static const MeasureUnit MEGABYTE = GpuCounterDescriptor_MeasureUnit_MEGABYTE;
-  static const MeasureUnit GIGABYTE = GpuCounterDescriptor_MeasureUnit_GIGABYTE;
-  static const MeasureUnit TERABYTE = GpuCounterDescriptor_MeasureUnit_TERABYTE;
-  static const MeasureUnit PETABYTE = GpuCounterDescriptor_MeasureUnit_PETABYTE;
-  static const MeasureUnit HERTZ = GpuCounterDescriptor_MeasureUnit_HERTZ;
-  static const MeasureUnit KILOHERTZ = GpuCounterDescriptor_MeasureUnit_KILOHERTZ;
-  static const MeasureUnit MEGAHERTZ = GpuCounterDescriptor_MeasureUnit_MEGAHERTZ;
-  static const MeasureUnit GIGAHERTZ = GpuCounterDescriptor_MeasureUnit_GIGAHERTZ;
-  static const MeasureUnit TERAHERTZ = GpuCounterDescriptor_MeasureUnit_TERAHERTZ;
-  static const MeasureUnit PETAHERTZ = GpuCounterDescriptor_MeasureUnit_PETAHERTZ;
-  static const MeasureUnit NANOSECOND = GpuCounterDescriptor_MeasureUnit_NANOSECOND;
-  static const MeasureUnit MICROSECOND = GpuCounterDescriptor_MeasureUnit_MICROSECOND;
-  static const MeasureUnit MILLISECOND = GpuCounterDescriptor_MeasureUnit_MILLISECOND;
-  static const MeasureUnit SECOND = GpuCounterDescriptor_MeasureUnit_SECOND;
-  static const MeasureUnit MINUTE = GpuCounterDescriptor_MeasureUnit_MINUTE;
-  static const MeasureUnit HOUR = GpuCounterDescriptor_MeasureUnit_HOUR;
-  static const MeasureUnit VERTEX = GpuCounterDescriptor_MeasureUnit_VERTEX;
-  static const MeasureUnit PIXEL = GpuCounterDescriptor_MeasureUnit_PIXEL;
-  static const MeasureUnit TRIANGLE = GpuCounterDescriptor_MeasureUnit_TRIANGLE;
-  static const MeasureUnit PRIMITIVE = GpuCounterDescriptor_MeasureUnit_PRIMITIVE;
-  static const MeasureUnit FRAGMENT = GpuCounterDescriptor_MeasureUnit_FRAGMENT;
-  static const MeasureUnit MILLIWATT = GpuCounterDescriptor_MeasureUnit_MILLIWATT;
-  static const MeasureUnit WATT = GpuCounterDescriptor_MeasureUnit_WATT;
-  static const MeasureUnit KILOWATT = GpuCounterDescriptor_MeasureUnit_KILOWATT;
-  static const MeasureUnit JOULE = GpuCounterDescriptor_MeasureUnit_JOULE;
-  static const MeasureUnit VOLT = GpuCounterDescriptor_MeasureUnit_VOLT;
-  static const MeasureUnit AMPERE = GpuCounterDescriptor_MeasureUnit_AMPERE;
-  static const MeasureUnit CELSIUS = GpuCounterDescriptor_MeasureUnit_CELSIUS;
-  static const MeasureUnit FAHRENHEIT = GpuCounterDescriptor_MeasureUnit_FAHRENHEIT;
-  static const MeasureUnit KELVIN = GpuCounterDescriptor_MeasureUnit_KELVIN;
-  static const MeasureUnit PERCENT = GpuCounterDescriptor_MeasureUnit_PERCENT;
-  static const MeasureUnit INSTRUCTION = GpuCounterDescriptor_MeasureUnit_INSTRUCTION;
-
-  using FieldMetadata_Specs =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kRepeatedNotPacked,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      GpuCounterDescriptor_GpuCounterSpec,
-      GpuCounterDescriptor>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Specs kSpecs() { return {}; }
-  template <typename T = GpuCounterDescriptor_GpuCounterSpec> T* add_specs() {
-    return BeginNestedMessage<T>(1);
-  }
-
-
-  using FieldMetadata_Blocks =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kRepeatedNotPacked,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      GpuCounterDescriptor_GpuCounterBlock,
-      GpuCounterDescriptor>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Blocks kBlocks() { return {}; }
-  template <typename T = GpuCounterDescriptor_GpuCounterBlock> T* add_blocks() {
-    return BeginNestedMessage<T>(2);
-  }
-
-
-  using FieldMetadata_MinSamplingPeriodNs =
-    ::protozero::proto_utils::FieldMetadata<
-      3,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      GpuCounterDescriptor>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_MinSamplingPeriodNs kMinSamplingPeriodNs() { return {}; }
-  void set_min_sampling_period_ns(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_MinSamplingPeriodNs::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_MaxSamplingPeriodNs =
-    ::protozero::proto_utils::FieldMetadata<
-      4,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      GpuCounterDescriptor>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_MaxSamplingPeriodNs kMaxSamplingPeriodNs() { return {}; }
-  void set_max_sampling_period_ns(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_MaxSamplingPeriodNs::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_SupportsInstrumentedSampling =
-    ::protozero::proto_utils::FieldMetadata<
-      5,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kBool,
-      bool,
-      GpuCounterDescriptor>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_SupportsInstrumentedSampling kSupportsInstrumentedSampling() { return {}; }
-  void set_supports_instrumented_sampling(bool value) {
-    static constexpr uint32_t field_id = FieldMetadata_SupportsInstrumentedSampling::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kBool>
-        ::Append(*this, field_id, value);
-  }
-};
-
-class GpuCounterDescriptor_GpuCounterBlock_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/5, /*HAS_NONPACKED_REPEATED_FIELDS=*/true> {
- public:
-  GpuCounterDescriptor_GpuCounterBlock_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit GpuCounterDescriptor_GpuCounterBlock_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit GpuCounterDescriptor_GpuCounterBlock_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_block_id() const { return at<1>().valid(); }
-  uint32_t block_id() const { return at<1>().as_uint32(); }
-  bool has_block_capacity() const { return at<2>().valid(); }
-  uint32_t block_capacity() const { return at<2>().as_uint32(); }
-  bool has_name() const { return at<3>().valid(); }
-  ::protozero::ConstChars name() const { return at<3>().as_string(); }
-  bool has_description() const { return at<4>().valid(); }
-  ::protozero::ConstChars description() const { return at<4>().as_string(); }
-  bool has_counter_ids() const { return at<5>().valid(); }
-  ::protozero::RepeatedFieldIterator<uint32_t> counter_ids() const { return GetRepeated<uint32_t>(5); }
-};
-
-class GpuCounterDescriptor_GpuCounterBlock : public ::protozero::Message {
- public:
-  using Decoder = GpuCounterDescriptor_GpuCounterBlock_Decoder;
-  enum : int32_t {
-    kBlockIdFieldNumber = 1,
-    kBlockCapacityFieldNumber = 2,
-    kNameFieldNumber = 3,
-    kDescriptionFieldNumber = 4,
-    kCounterIdsFieldNumber = 5,
-  };
-
-  using FieldMetadata_BlockId =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      GpuCounterDescriptor_GpuCounterBlock>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_BlockId kBlockId() { return {}; }
-  void set_block_id(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_BlockId::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_BlockCapacity =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      GpuCounterDescriptor_GpuCounterBlock>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_BlockCapacity kBlockCapacity() { return {}; }
-  void set_block_capacity(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_BlockCapacity::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Name =
-    ::protozero::proto_utils::FieldMetadata<
-      3,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kString,
-      std::string,
-      GpuCounterDescriptor_GpuCounterBlock>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Name kName() { return {}; }
-  void set_name(const char* data, size_t size) {
-    AppendBytes(FieldMetadata_Name::kFieldId, data, size);
-  }
-  void set_name(std::string value) {
-    static constexpr uint32_t field_id = FieldMetadata_Name::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kString>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Description =
-    ::protozero::proto_utils::FieldMetadata<
-      4,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kString,
-      std::string,
-      GpuCounterDescriptor_GpuCounterBlock>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Description kDescription() { return {}; }
-  void set_description(const char* data, size_t size) {
-    AppendBytes(FieldMetadata_Description::kFieldId, data, size);
-  }
-  void set_description(std::string value) {
-    static constexpr uint32_t field_id = FieldMetadata_Description::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kString>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_CounterIds =
-    ::protozero::proto_utils::FieldMetadata<
-      5,
-      ::protozero::proto_utils::RepetitionType::kRepeatedNotPacked,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      GpuCounterDescriptor_GpuCounterBlock>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_CounterIds kCounterIds() { return {}; }
-  void add_counter_ids(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_CounterIds::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-};
-
-class GpuCounterDescriptor_GpuCounterSpec_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/10, /*HAS_NONPACKED_REPEATED_FIELDS=*/true> {
- public:
-  GpuCounterDescriptor_GpuCounterSpec_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit GpuCounterDescriptor_GpuCounterSpec_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit GpuCounterDescriptor_GpuCounterSpec_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_counter_id() const { return at<1>().valid(); }
-  uint32_t counter_id() const { return at<1>().as_uint32(); }
-  bool has_name() const { return at<2>().valid(); }
-  ::protozero::ConstChars name() const { return at<2>().as_string(); }
-  bool has_description() const { return at<3>().valid(); }
-  ::protozero::ConstChars description() const { return at<3>().as_string(); }
-  bool has_int_peak_value() const { return at<5>().valid(); }
-  int64_t int_peak_value() const { return at<5>().as_int64(); }
-  bool has_double_peak_value() const { return at<6>().valid(); }
-  double double_peak_value() const { return at<6>().as_double(); }
-  bool has_numerator_units() const { return at<7>().valid(); }
-  ::protozero::RepeatedFieldIterator<int32_t> numerator_units() const { return GetRepeated<int32_t>(7); }
-  bool has_denominator_units() const { return at<8>().valid(); }
-  ::protozero::RepeatedFieldIterator<int32_t> denominator_units() const { return GetRepeated<int32_t>(8); }
-  bool has_select_by_default() const { return at<9>().valid(); }
-  bool select_by_default() const { return at<9>().as_bool(); }
-  bool has_groups() const { return at<10>().valid(); }
-  ::protozero::RepeatedFieldIterator<int32_t> groups() const { return GetRepeated<int32_t>(10); }
-};
-
-class GpuCounterDescriptor_GpuCounterSpec : public ::protozero::Message {
- public:
-  using Decoder = GpuCounterDescriptor_GpuCounterSpec_Decoder;
-  enum : int32_t {
-    kCounterIdFieldNumber = 1,
-    kNameFieldNumber = 2,
-    kDescriptionFieldNumber = 3,
-    kIntPeakValueFieldNumber = 5,
-    kDoublePeakValueFieldNumber = 6,
-    kNumeratorUnitsFieldNumber = 7,
-    kDenominatorUnitsFieldNumber = 8,
-    kSelectByDefaultFieldNumber = 9,
-    kGroupsFieldNumber = 10,
-  };
-
-  using FieldMetadata_CounterId =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      GpuCounterDescriptor_GpuCounterSpec>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_CounterId kCounterId() { return {}; }
-  void set_counter_id(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_CounterId::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Name =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kString,
-      std::string,
-      GpuCounterDescriptor_GpuCounterSpec>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Name kName() { return {}; }
-  void set_name(const char* data, size_t size) {
-    AppendBytes(FieldMetadata_Name::kFieldId, data, size);
-  }
-  void set_name(std::string value) {
-    static constexpr uint32_t field_id = FieldMetadata_Name::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kString>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Description =
-    ::protozero::proto_utils::FieldMetadata<
-      3,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kString,
-      std::string,
-      GpuCounterDescriptor_GpuCounterSpec>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Description kDescription() { return {}; }
-  void set_description(const char* data, size_t size) {
-    AppendBytes(FieldMetadata_Description::kFieldId, data, size);
-  }
-  void set_description(std::string value) {
-    static constexpr uint32_t field_id = FieldMetadata_Description::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kString>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_IntPeakValue =
-    ::protozero::proto_utils::FieldMetadata<
-      5,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt64,
-      int64_t,
-      GpuCounterDescriptor_GpuCounterSpec>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_IntPeakValue kIntPeakValue() { return {}; }
-  void set_int_peak_value(int64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_IntPeakValue::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_DoublePeakValue =
-    ::protozero::proto_utils::FieldMetadata<
-      6,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kDouble,
-      double,
-      GpuCounterDescriptor_GpuCounterSpec>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_DoublePeakValue kDoublePeakValue() { return {}; }
-  void set_double_peak_value(double value) {
-    static constexpr uint32_t field_id = FieldMetadata_DoublePeakValue::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kDouble>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_NumeratorUnits =
-    ::protozero::proto_utils::FieldMetadata<
-      7,
-      ::protozero::proto_utils::RepetitionType::kRepeatedNotPacked,
-      ::protozero::proto_utils::ProtoSchemaType::kEnum,
-      ::perfetto::protos::pbzero::GpuCounterDescriptor_MeasureUnit,
-      GpuCounterDescriptor_GpuCounterSpec>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_NumeratorUnits kNumeratorUnits() { return {}; }
-  void add_numerator_units(::perfetto::protos::pbzero::GpuCounterDescriptor_MeasureUnit value) {
-    static constexpr uint32_t field_id = FieldMetadata_NumeratorUnits::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kEnum>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_DenominatorUnits =
-    ::protozero::proto_utils::FieldMetadata<
-      8,
-      ::protozero::proto_utils::RepetitionType::kRepeatedNotPacked,
-      ::protozero::proto_utils::ProtoSchemaType::kEnum,
-      ::perfetto::protos::pbzero::GpuCounterDescriptor_MeasureUnit,
-      GpuCounterDescriptor_GpuCounterSpec>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_DenominatorUnits kDenominatorUnits() { return {}; }
-  void add_denominator_units(::perfetto::protos::pbzero::GpuCounterDescriptor_MeasureUnit value) {
-    static constexpr uint32_t field_id = FieldMetadata_DenominatorUnits::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kEnum>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_SelectByDefault =
-    ::protozero::proto_utils::FieldMetadata<
-      9,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kBool,
-      bool,
-      GpuCounterDescriptor_GpuCounterSpec>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_SelectByDefault kSelectByDefault() { return {}; }
-  void set_select_by_default(bool value) {
-    static constexpr uint32_t field_id = FieldMetadata_SelectByDefault::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kBool>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Groups =
-    ::protozero::proto_utils::FieldMetadata<
-      10,
-      ::protozero::proto_utils::RepetitionType::kRepeatedNotPacked,
-      ::protozero::proto_utils::ProtoSchemaType::kEnum,
-      ::perfetto::protos::pbzero::GpuCounterDescriptor_GpuCounterGroup,
-      GpuCounterDescriptor_GpuCounterSpec>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Groups kGroups() { return {}; }
-  void add_groups(::perfetto::protos::pbzero::GpuCounterDescriptor_GpuCounterGroup value) {
-    static constexpr uint32_t field_id = FieldMetadata_Groups::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kEnum>
-        ::Append(*this, field_id, value);
-  }
-};
-
-} // Namespace.
-} // Namespace.
-} // Namespace.
-#endif  // Include guard.
-// gen_amalgamated begin header: gen/protos/perfetto/common/interceptor_descriptor.pbzero.h
-// Autogenerated by the ProtoZero compiler plugin. DO NOT EDIT.
-
-#ifndef PERFETTO_PROTOS_PROTOS_PERFETTO_COMMON_INTERCEPTOR_DESCRIPTOR_PROTO_H_
-#define PERFETTO_PROTOS_PROTOS_PERFETTO_COMMON_INTERCEPTOR_DESCRIPTOR_PROTO_H_
-
-#include <stddef.h>
-#include <stdint.h>
-
-// gen_amalgamated expanded: #include "perfetto/protozero/field_writer.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/message.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/packed_repeated_fields.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/proto_decoder.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/proto_utils.h"
-
-namespace perfetto {
-namespace protos {
-namespace pbzero {
-
-
-class InterceptorDescriptor_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/1, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  InterceptorDescriptor_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit InterceptorDescriptor_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit InterceptorDescriptor_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_name() const { return at<1>().valid(); }
-  ::protozero::ConstChars name() const { return at<1>().as_string(); }
-};
-
-class InterceptorDescriptor : public ::protozero::Message {
- public:
-  using Decoder = InterceptorDescriptor_Decoder;
-  enum : int32_t {
-    kNameFieldNumber = 1,
-  };
-
-  using FieldMetadata_Name =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kString,
-      std::string,
-      InterceptorDescriptor>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Name kName() { return {}; }
-  void set_name(const char* data, size_t size) {
-    AppendBytes(FieldMetadata_Name::kFieldId, data, size);
-  }
-  void set_name(std::string value) {
-    static constexpr uint32_t field_id = FieldMetadata_Name::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kString>
-        ::Append(*this, field_id, value);
-  }
-};
-
-} // Namespace.
-} // Namespace.
-} // Namespace.
-#endif  // Include guard.
-// gen_amalgamated begin header: gen/protos/perfetto/common/observable_events.pbzero.h
-// Autogenerated by the ProtoZero compiler plugin. DO NOT EDIT.
-
-#ifndef PERFETTO_PROTOS_PROTOS_PERFETTO_COMMON_OBSERVABLE_EVENTS_PROTO_H_
-#define PERFETTO_PROTOS_PROTOS_PERFETTO_COMMON_OBSERVABLE_EVENTS_PROTO_H_
-
-#include <stddef.h>
-#include <stdint.h>
-
-// gen_amalgamated expanded: #include "perfetto/protozero/field_writer.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/message.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/packed_repeated_fields.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/proto_decoder.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/proto_utils.h"
-
-namespace perfetto {
-namespace protos {
-namespace pbzero {
-
-class ObservableEvents_DataSourceInstanceStateChange;
-enum ObservableEvents_DataSourceInstanceState : int32_t;
-
-enum ObservableEvents_Type : int32_t {
-  ObservableEvents_Type_TYPE_UNSPECIFIED = 0,
-  ObservableEvents_Type_TYPE_DATA_SOURCES_INSTANCES = 1,
-  ObservableEvents_Type_TYPE_ALL_DATA_SOURCES_STARTED = 2,
-};
-
-const ObservableEvents_Type ObservableEvents_Type_MIN = ObservableEvents_Type_TYPE_UNSPECIFIED;
-const ObservableEvents_Type ObservableEvents_Type_MAX = ObservableEvents_Type_TYPE_ALL_DATA_SOURCES_STARTED;
-
-enum ObservableEvents_DataSourceInstanceState : int32_t {
-  ObservableEvents_DataSourceInstanceState_DATA_SOURCE_INSTANCE_STATE_STOPPED = 1,
-  ObservableEvents_DataSourceInstanceState_DATA_SOURCE_INSTANCE_STATE_STARTED = 2,
-};
-
-const ObservableEvents_DataSourceInstanceState ObservableEvents_DataSourceInstanceState_MIN = ObservableEvents_DataSourceInstanceState_DATA_SOURCE_INSTANCE_STATE_STOPPED;
-const ObservableEvents_DataSourceInstanceState ObservableEvents_DataSourceInstanceState_MAX = ObservableEvents_DataSourceInstanceState_DATA_SOURCE_INSTANCE_STATE_STARTED;
-
-class ObservableEvents_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/2, /*HAS_NONPACKED_REPEATED_FIELDS=*/true> {
- public:
-  ObservableEvents_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit ObservableEvents_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit ObservableEvents_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_instance_state_changes() const { return at<1>().valid(); }
-  ::protozero::RepeatedFieldIterator<::protozero::ConstBytes> instance_state_changes() const { return GetRepeated<::protozero::ConstBytes>(1); }
-  bool has_all_data_sources_started() const { return at<2>().valid(); }
-  bool all_data_sources_started() const { return at<2>().as_bool(); }
-};
-
-class ObservableEvents : public ::protozero::Message {
- public:
-  using Decoder = ObservableEvents_Decoder;
-  enum : int32_t {
-    kInstanceStateChangesFieldNumber = 1,
-    kAllDataSourcesStartedFieldNumber = 2,
-  };
-  using DataSourceInstanceStateChange = ::perfetto::protos::pbzero::ObservableEvents_DataSourceInstanceStateChange;
-  using Type = ::perfetto::protos::pbzero::ObservableEvents_Type;
-  using DataSourceInstanceState = ::perfetto::protos::pbzero::ObservableEvents_DataSourceInstanceState;
-  static const Type TYPE_UNSPECIFIED = ObservableEvents_Type_TYPE_UNSPECIFIED;
-  static const Type TYPE_DATA_SOURCES_INSTANCES = ObservableEvents_Type_TYPE_DATA_SOURCES_INSTANCES;
-  static const Type TYPE_ALL_DATA_SOURCES_STARTED = ObservableEvents_Type_TYPE_ALL_DATA_SOURCES_STARTED;
-  static const DataSourceInstanceState DATA_SOURCE_INSTANCE_STATE_STOPPED = ObservableEvents_DataSourceInstanceState_DATA_SOURCE_INSTANCE_STATE_STOPPED;
-  static const DataSourceInstanceState DATA_SOURCE_INSTANCE_STATE_STARTED = ObservableEvents_DataSourceInstanceState_DATA_SOURCE_INSTANCE_STATE_STARTED;
-
-  using FieldMetadata_InstanceStateChanges =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kRepeatedNotPacked,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      ObservableEvents_DataSourceInstanceStateChange,
-      ObservableEvents>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_InstanceStateChanges kInstanceStateChanges() { return {}; }
-  template <typename T = ObservableEvents_DataSourceInstanceStateChange> T* add_instance_state_changes() {
-    return BeginNestedMessage<T>(1);
-  }
-
-
-  using FieldMetadata_AllDataSourcesStarted =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kBool,
-      bool,
-      ObservableEvents>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_AllDataSourcesStarted kAllDataSourcesStarted() { return {}; }
-  void set_all_data_sources_started(bool value) {
-    static constexpr uint32_t field_id = FieldMetadata_AllDataSourcesStarted::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kBool>
-        ::Append(*this, field_id, value);
-  }
-};
-
-class ObservableEvents_DataSourceInstanceStateChange_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/3, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  ObservableEvents_DataSourceInstanceStateChange_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit ObservableEvents_DataSourceInstanceStateChange_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit ObservableEvents_DataSourceInstanceStateChange_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_producer_name() const { return at<1>().valid(); }
-  ::protozero::ConstChars producer_name() const { return at<1>().as_string(); }
-  bool has_data_source_name() const { return at<2>().valid(); }
-  ::protozero::ConstChars data_source_name() const { return at<2>().as_string(); }
-  bool has_state() const { return at<3>().valid(); }
-  int32_t state() const { return at<3>().as_int32(); }
-};
-
-class ObservableEvents_DataSourceInstanceStateChange : public ::protozero::Message {
- public:
-  using Decoder = ObservableEvents_DataSourceInstanceStateChange_Decoder;
-  enum : int32_t {
-    kProducerNameFieldNumber = 1,
-    kDataSourceNameFieldNumber = 2,
-    kStateFieldNumber = 3,
-  };
-
-  using FieldMetadata_ProducerName =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kString,
-      std::string,
-      ObservableEvents_DataSourceInstanceStateChange>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_ProducerName kProducerName() { return {}; }
-  void set_producer_name(const char* data, size_t size) {
-    AppendBytes(FieldMetadata_ProducerName::kFieldId, data, size);
-  }
-  void set_producer_name(std::string value) {
-    static constexpr uint32_t field_id = FieldMetadata_ProducerName::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kString>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_DataSourceName =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kString,
-      std::string,
-      ObservableEvents_DataSourceInstanceStateChange>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_DataSourceName kDataSourceName() { return {}; }
-  void set_data_source_name(const char* data, size_t size) {
-    AppendBytes(FieldMetadata_DataSourceName::kFieldId, data, size);
-  }
-  void set_data_source_name(std::string value) {
-    static constexpr uint32_t field_id = FieldMetadata_DataSourceName::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kString>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_State =
-    ::protozero::proto_utils::FieldMetadata<
-      3,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kEnum,
-      ::perfetto::protos::pbzero::ObservableEvents_DataSourceInstanceState,
-      ObservableEvents_DataSourceInstanceStateChange>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_State kState() { return {}; }
-  void set_state(::perfetto::protos::pbzero::ObservableEvents_DataSourceInstanceState value) {
-    static constexpr uint32_t field_id = FieldMetadata_State::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kEnum>
-        ::Append(*this, field_id, value);
-  }
-};
-
-} // Namespace.
-} // Namespace.
-} // Namespace.
-#endif  // Include guard.
-// gen_amalgamated begin header: gen/protos/perfetto/common/perf_events.pbzero.h
-// Autogenerated by the ProtoZero compiler plugin. DO NOT EDIT.
-
-#ifndef PERFETTO_PROTOS_PROTOS_PERFETTO_COMMON_PERF_EVENTS_PROTO_H_
-#define PERFETTO_PROTOS_PROTOS_PERFETTO_COMMON_PERF_EVENTS_PROTO_H_
-
-#include <stddef.h>
-#include <stdint.h>
-
-// gen_amalgamated expanded: #include "perfetto/protozero/field_writer.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/message.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/packed_repeated_fields.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/proto_decoder.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/proto_utils.h"
-
-namespace perfetto {
-namespace protos {
-namespace pbzero {
-
-class PerfEvents_Timebase;
-class PerfEvents_Tracepoint;
-enum PerfEvents_Counter : int32_t;
-
-enum PerfEvents_Counter : int32_t {
-  PerfEvents_Counter_UNKNOWN_COUNTER = 0,
-  PerfEvents_Counter_SW_CPU_CLOCK = 1,
-  PerfEvents_Counter_SW_PAGE_FAULTS = 2,
-  PerfEvents_Counter_HW_CPU_CYCLES = 10,
-  PerfEvents_Counter_HW_INSTRUCTIONS = 11,
-};
-
-const PerfEvents_Counter PerfEvents_Counter_MIN = PerfEvents_Counter_UNKNOWN_COUNTER;
-const PerfEvents_Counter PerfEvents_Counter_MAX = PerfEvents_Counter_HW_INSTRUCTIONS;
-
-class PerfEvents_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/0, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  PerfEvents_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit PerfEvents_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit PerfEvents_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-};
-
-class PerfEvents : public ::protozero::Message {
- public:
-  using Decoder = PerfEvents_Decoder;
-  using Timebase = ::perfetto::protos::pbzero::PerfEvents_Timebase;
-  using Tracepoint = ::perfetto::protos::pbzero::PerfEvents_Tracepoint;
-  using Counter = ::perfetto::protos::pbzero::PerfEvents_Counter;
-  static const Counter UNKNOWN_COUNTER = PerfEvents_Counter_UNKNOWN_COUNTER;
-  static const Counter SW_CPU_CLOCK = PerfEvents_Counter_SW_CPU_CLOCK;
-  static const Counter SW_PAGE_FAULTS = PerfEvents_Counter_SW_PAGE_FAULTS;
-  static const Counter HW_CPU_CYCLES = PerfEvents_Counter_HW_CPU_CYCLES;
-  static const Counter HW_INSTRUCTIONS = PerfEvents_Counter_HW_INSTRUCTIONS;
-};
-
-class PerfEvents_Tracepoint_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/2, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  PerfEvents_Tracepoint_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit PerfEvents_Tracepoint_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit PerfEvents_Tracepoint_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_name() const { return at<1>().valid(); }
-  ::protozero::ConstChars name() const { return at<1>().as_string(); }
-  bool has_filter() const { return at<2>().valid(); }
-  ::protozero::ConstChars filter() const { return at<2>().as_string(); }
-};
-
-class PerfEvents_Tracepoint : public ::protozero::Message {
- public:
-  using Decoder = PerfEvents_Tracepoint_Decoder;
-  enum : int32_t {
-    kNameFieldNumber = 1,
-    kFilterFieldNumber = 2,
-  };
-
-  using FieldMetadata_Name =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kString,
-      std::string,
-      PerfEvents_Tracepoint>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Name kName() { return {}; }
-  void set_name(const char* data, size_t size) {
-    AppendBytes(FieldMetadata_Name::kFieldId, data, size);
-  }
-  void set_name(std::string value) {
-    static constexpr uint32_t field_id = FieldMetadata_Name::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kString>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Filter =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kString,
-      std::string,
-      PerfEvents_Tracepoint>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Filter kFilter() { return {}; }
-  void set_filter(const char* data, size_t size) {
-    AppendBytes(FieldMetadata_Filter::kFieldId, data, size);
-  }
-  void set_filter(std::string value) {
-    static constexpr uint32_t field_id = FieldMetadata_Filter::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kString>
-        ::Append(*this, field_id, value);
-  }
-};
-
-class PerfEvents_Timebase_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/4, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  PerfEvents_Timebase_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit PerfEvents_Timebase_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit PerfEvents_Timebase_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_frequency() const { return at<2>().valid(); }
-  uint64_t frequency() const { return at<2>().as_uint64(); }
-  bool has_period() const { return at<1>().valid(); }
-  uint64_t period() const { return at<1>().as_uint64(); }
-  bool has_counter() const { return at<4>().valid(); }
-  int32_t counter() const { return at<4>().as_int32(); }
-  bool has_tracepoint() const { return at<3>().valid(); }
-  ::protozero::ConstBytes tracepoint() const { return at<3>().as_bytes(); }
-};
-
-class PerfEvents_Timebase : public ::protozero::Message {
- public:
-  using Decoder = PerfEvents_Timebase_Decoder;
-  enum : int32_t {
-    kFrequencyFieldNumber = 2,
-    kPeriodFieldNumber = 1,
-    kCounterFieldNumber = 4,
-    kTracepointFieldNumber = 3,
-  };
-
-  using FieldMetadata_Frequency =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      PerfEvents_Timebase>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Frequency kFrequency() { return {}; }
-  void set_frequency(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Frequency::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Period =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      PerfEvents_Timebase>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Period kPeriod() { return {}; }
-  void set_period(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Period::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Counter =
-    ::protozero::proto_utils::FieldMetadata<
-      4,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kEnum,
-      ::perfetto::protos::pbzero::PerfEvents_Counter,
-      PerfEvents_Timebase>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Counter kCounter() { return {}; }
-  void set_counter(::perfetto::protos::pbzero::PerfEvents_Counter value) {
-    static constexpr uint32_t field_id = FieldMetadata_Counter::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kEnum>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Tracepoint =
-    ::protozero::proto_utils::FieldMetadata<
-      3,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      PerfEvents_Tracepoint,
-      PerfEvents_Timebase>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Tracepoint kTracepoint() { return {}; }
-  template <typename T = PerfEvents_Tracepoint> T* set_tracepoint() {
-    return BeginNestedMessage<T>(3);
-  }
-
-};
-
-} // Namespace.
-} // Namespace.
-} // Namespace.
-#endif  // Include guard.
-// gen_amalgamated begin header: gen/protos/perfetto/common/sys_stats_counters.pbzero.h
-// Autogenerated by the ProtoZero compiler plugin. DO NOT EDIT.
-
-#ifndef PERFETTO_PROTOS_PROTOS_PERFETTO_COMMON_SYS_STATS_COUNTERS_PROTO_H_
-#define PERFETTO_PROTOS_PROTOS_PERFETTO_COMMON_SYS_STATS_COUNTERS_PROTO_H_
-
-#include <stddef.h>
-#include <stdint.h>
-
-// gen_amalgamated expanded: #include "perfetto/protozero/field_writer.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/message.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/packed_repeated_fields.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/proto_decoder.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/proto_utils.h"
-
-namespace perfetto {
-namespace protos {
-namespace pbzero {
-
-
-enum MeminfoCounters : int32_t {
-  MEMINFO_UNSPECIFIED = 0,
-  MEMINFO_MEM_TOTAL = 1,
-  MEMINFO_MEM_FREE = 2,
-  MEMINFO_MEM_AVAILABLE = 3,
-  MEMINFO_BUFFERS = 4,
-  MEMINFO_CACHED = 5,
-  MEMINFO_SWAP_CACHED = 6,
-  MEMINFO_ACTIVE = 7,
-  MEMINFO_INACTIVE = 8,
-  MEMINFO_ACTIVE_ANON = 9,
-  MEMINFO_INACTIVE_ANON = 10,
-  MEMINFO_ACTIVE_FILE = 11,
-  MEMINFO_INACTIVE_FILE = 12,
-  MEMINFO_UNEVICTABLE = 13,
-  MEMINFO_MLOCKED = 14,
-  MEMINFO_SWAP_TOTAL = 15,
-  MEMINFO_SWAP_FREE = 16,
-  MEMINFO_DIRTY = 17,
-  MEMINFO_WRITEBACK = 18,
-  MEMINFO_ANON_PAGES = 19,
-  MEMINFO_MAPPED = 20,
-  MEMINFO_SHMEM = 21,
-  MEMINFO_SLAB = 22,
-  MEMINFO_SLAB_RECLAIMABLE = 23,
-  MEMINFO_SLAB_UNRECLAIMABLE = 24,
-  MEMINFO_KERNEL_STACK = 25,
-  MEMINFO_PAGE_TABLES = 26,
-  MEMINFO_COMMIT_LIMIT = 27,
-  MEMINFO_COMMITED_AS = 28,
-  MEMINFO_VMALLOC_TOTAL = 29,
-  MEMINFO_VMALLOC_USED = 30,
-  MEMINFO_VMALLOC_CHUNK = 31,
-  MEMINFO_CMA_TOTAL = 32,
-  MEMINFO_CMA_FREE = 33,
-};
-
-const MeminfoCounters MeminfoCounters_MIN = MEMINFO_UNSPECIFIED;
-const MeminfoCounters MeminfoCounters_MAX = MEMINFO_CMA_FREE;
-
-enum VmstatCounters : int32_t {
-  VMSTAT_UNSPECIFIED = 0,
-  VMSTAT_NR_FREE_PAGES = 1,
-  VMSTAT_NR_ALLOC_BATCH = 2,
-  VMSTAT_NR_INACTIVE_ANON = 3,
-  VMSTAT_NR_ACTIVE_ANON = 4,
-  VMSTAT_NR_INACTIVE_FILE = 5,
-  VMSTAT_NR_ACTIVE_FILE = 6,
-  VMSTAT_NR_UNEVICTABLE = 7,
-  VMSTAT_NR_MLOCK = 8,
-  VMSTAT_NR_ANON_PAGES = 9,
-  VMSTAT_NR_MAPPED = 10,
-  VMSTAT_NR_FILE_PAGES = 11,
-  VMSTAT_NR_DIRTY = 12,
-  VMSTAT_NR_WRITEBACK = 13,
-  VMSTAT_NR_SLAB_RECLAIMABLE = 14,
-  VMSTAT_NR_SLAB_UNRECLAIMABLE = 15,
-  VMSTAT_NR_PAGE_TABLE_PAGES = 16,
-  VMSTAT_NR_KERNEL_STACK = 17,
-  VMSTAT_NR_OVERHEAD = 18,
-  VMSTAT_NR_UNSTABLE = 19,
-  VMSTAT_NR_BOUNCE = 20,
-  VMSTAT_NR_VMSCAN_WRITE = 21,
-  VMSTAT_NR_VMSCAN_IMMEDIATE_RECLAIM = 22,
-  VMSTAT_NR_WRITEBACK_TEMP = 23,
-  VMSTAT_NR_ISOLATED_ANON = 24,
-  VMSTAT_NR_ISOLATED_FILE = 25,
-  VMSTAT_NR_SHMEM = 26,
-  VMSTAT_NR_DIRTIED = 27,
-  VMSTAT_NR_WRITTEN = 28,
-  VMSTAT_NR_PAGES_SCANNED = 29,
-  VMSTAT_WORKINGSET_REFAULT = 30,
-  VMSTAT_WORKINGSET_ACTIVATE = 31,
-  VMSTAT_WORKINGSET_NODERECLAIM = 32,
-  VMSTAT_NR_ANON_TRANSPARENT_HUGEPAGES = 33,
-  VMSTAT_NR_FREE_CMA = 34,
-  VMSTAT_NR_SWAPCACHE = 35,
-  VMSTAT_NR_DIRTY_THRESHOLD = 36,
-  VMSTAT_NR_DIRTY_BACKGROUND_THRESHOLD = 37,
-  VMSTAT_PGPGIN = 38,
-  VMSTAT_PGPGOUT = 39,
-  VMSTAT_PGPGOUTCLEAN = 40,
-  VMSTAT_PSWPIN = 41,
-  VMSTAT_PSWPOUT = 42,
-  VMSTAT_PGALLOC_DMA = 43,
-  VMSTAT_PGALLOC_NORMAL = 44,
-  VMSTAT_PGALLOC_MOVABLE = 45,
-  VMSTAT_PGFREE = 46,
-  VMSTAT_PGACTIVATE = 47,
-  VMSTAT_PGDEACTIVATE = 48,
-  VMSTAT_PGFAULT = 49,
-  VMSTAT_PGMAJFAULT = 50,
-  VMSTAT_PGREFILL_DMA = 51,
-  VMSTAT_PGREFILL_NORMAL = 52,
-  VMSTAT_PGREFILL_MOVABLE = 53,
-  VMSTAT_PGSTEAL_KSWAPD_DMA = 54,
-  VMSTAT_PGSTEAL_KSWAPD_NORMAL = 55,
-  VMSTAT_PGSTEAL_KSWAPD_MOVABLE = 56,
-  VMSTAT_PGSTEAL_DIRECT_DMA = 57,
-  VMSTAT_PGSTEAL_DIRECT_NORMAL = 58,
-  VMSTAT_PGSTEAL_DIRECT_MOVABLE = 59,
-  VMSTAT_PGSCAN_KSWAPD_DMA = 60,
-  VMSTAT_PGSCAN_KSWAPD_NORMAL = 61,
-  VMSTAT_PGSCAN_KSWAPD_MOVABLE = 62,
-  VMSTAT_PGSCAN_DIRECT_DMA = 63,
-  VMSTAT_PGSCAN_DIRECT_NORMAL = 64,
-  VMSTAT_PGSCAN_DIRECT_MOVABLE = 65,
-  VMSTAT_PGSCAN_DIRECT_THROTTLE = 66,
-  VMSTAT_PGINODESTEAL = 67,
-  VMSTAT_SLABS_SCANNED = 68,
-  VMSTAT_KSWAPD_INODESTEAL = 69,
-  VMSTAT_KSWAPD_LOW_WMARK_HIT_QUICKLY = 70,
-  VMSTAT_KSWAPD_HIGH_WMARK_HIT_QUICKLY = 71,
-  VMSTAT_PAGEOUTRUN = 72,
-  VMSTAT_ALLOCSTALL = 73,
-  VMSTAT_PGROTATED = 74,
-  VMSTAT_DROP_PAGECACHE = 75,
-  VMSTAT_DROP_SLAB = 76,
-  VMSTAT_PGMIGRATE_SUCCESS = 77,
-  VMSTAT_PGMIGRATE_FAIL = 78,
-  VMSTAT_COMPACT_MIGRATE_SCANNED = 79,
-  VMSTAT_COMPACT_FREE_SCANNED = 80,
-  VMSTAT_COMPACT_ISOLATED = 81,
-  VMSTAT_COMPACT_STALL = 82,
-  VMSTAT_COMPACT_FAIL = 83,
-  VMSTAT_COMPACT_SUCCESS = 84,
-  VMSTAT_COMPACT_DAEMON_WAKE = 85,
-  VMSTAT_UNEVICTABLE_PGS_CULLED = 86,
-  VMSTAT_UNEVICTABLE_PGS_SCANNED = 87,
-  VMSTAT_UNEVICTABLE_PGS_RESCUED = 88,
-  VMSTAT_UNEVICTABLE_PGS_MLOCKED = 89,
-  VMSTAT_UNEVICTABLE_PGS_MUNLOCKED = 90,
-  VMSTAT_UNEVICTABLE_PGS_CLEARED = 91,
-  VMSTAT_UNEVICTABLE_PGS_STRANDED = 92,
-  VMSTAT_NR_ZSPAGES = 93,
-  VMSTAT_NR_ION_HEAP = 94,
-  VMSTAT_NR_GPU_HEAP = 95,
-  VMSTAT_ALLOCSTALL_DMA = 96,
-  VMSTAT_ALLOCSTALL_MOVABLE = 97,
-  VMSTAT_ALLOCSTALL_NORMAL = 98,
-  VMSTAT_COMPACT_DAEMON_FREE_SCANNED = 99,
-  VMSTAT_COMPACT_DAEMON_MIGRATE_SCANNED = 100,
-  VMSTAT_NR_FASTRPC = 101,
-  VMSTAT_NR_INDIRECTLY_RECLAIMABLE = 102,
-  VMSTAT_NR_ION_HEAP_POOL = 103,
-  VMSTAT_NR_KERNEL_MISC_RECLAIMABLE = 104,
-  VMSTAT_NR_SHADOW_CALL_STACK_BYTES = 105,
-  VMSTAT_NR_SHMEM_HUGEPAGES = 106,
-  VMSTAT_NR_SHMEM_PMDMAPPED = 107,
-  VMSTAT_NR_UNRECLAIMABLE_PAGES = 108,
-  VMSTAT_NR_ZONE_ACTIVE_ANON = 109,
-  VMSTAT_NR_ZONE_ACTIVE_FILE = 110,
-  VMSTAT_NR_ZONE_INACTIVE_ANON = 111,
-  VMSTAT_NR_ZONE_INACTIVE_FILE = 112,
-  VMSTAT_NR_ZONE_UNEVICTABLE = 113,
-  VMSTAT_NR_ZONE_WRITE_PENDING = 114,
-  VMSTAT_OOM_KILL = 115,
-  VMSTAT_PGLAZYFREE = 116,
-  VMSTAT_PGLAZYFREED = 117,
-  VMSTAT_PGREFILL = 118,
-  VMSTAT_PGSCAN_DIRECT = 119,
-  VMSTAT_PGSCAN_KSWAPD = 120,
-  VMSTAT_PGSKIP_DMA = 121,
-  VMSTAT_PGSKIP_MOVABLE = 122,
-  VMSTAT_PGSKIP_NORMAL = 123,
-  VMSTAT_PGSTEAL_DIRECT = 124,
-  VMSTAT_PGSTEAL_KSWAPD = 125,
-  VMSTAT_SWAP_RA = 126,
-  VMSTAT_SWAP_RA_HIT = 127,
-  VMSTAT_WORKINGSET_RESTORE = 128,
-};
-
-const VmstatCounters VmstatCounters_MIN = VMSTAT_UNSPECIFIED;
-const VmstatCounters VmstatCounters_MAX = VMSTAT_WORKINGSET_RESTORE;
-
-} // Namespace.
-} // Namespace.
-} // Namespace.
-#endif  // Include guard.
-// gen_amalgamated begin header: gen/protos/perfetto/common/trace_stats.pbzero.h
-// Autogenerated by the ProtoZero compiler plugin. DO NOT EDIT.
-
-#ifndef PERFETTO_PROTOS_PROTOS_PERFETTO_COMMON_TRACE_STATS_PROTO_H_
-#define PERFETTO_PROTOS_PROTOS_PERFETTO_COMMON_TRACE_STATS_PROTO_H_
-
-#include <stddef.h>
-#include <stdint.h>
-
-// gen_amalgamated expanded: #include "perfetto/protozero/field_writer.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/message.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/packed_repeated_fields.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/proto_decoder.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/proto_utils.h"
-
-namespace perfetto {
-namespace protos {
-namespace pbzero {
-
-class TraceStats_BufferStats;
-class TraceStats_FilterStats;
-
-class TraceStats_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/11, /*HAS_NONPACKED_REPEATED_FIELDS=*/true> {
- public:
-  TraceStats_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit TraceStats_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit TraceStats_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_buffer_stats() const { return at<1>().valid(); }
-  ::protozero::RepeatedFieldIterator<::protozero::ConstBytes> buffer_stats() const { return GetRepeated<::protozero::ConstBytes>(1); }
-  bool has_producers_connected() const { return at<2>().valid(); }
-  uint32_t producers_connected() const { return at<2>().as_uint32(); }
-  bool has_producers_seen() const { return at<3>().valid(); }
-  uint64_t producers_seen() const { return at<3>().as_uint64(); }
-  bool has_data_sources_registered() const { return at<4>().valid(); }
-  uint32_t data_sources_registered() const { return at<4>().as_uint32(); }
-  bool has_data_sources_seen() const { return at<5>().valid(); }
-  uint64_t data_sources_seen() const { return at<5>().as_uint64(); }
-  bool has_tracing_sessions() const { return at<6>().valid(); }
-  uint32_t tracing_sessions() const { return at<6>().as_uint32(); }
-  bool has_total_buffers() const { return at<7>().valid(); }
-  uint32_t total_buffers() const { return at<7>().as_uint32(); }
-  bool has_chunks_discarded() const { return at<8>().valid(); }
-  uint64_t chunks_discarded() const { return at<8>().as_uint64(); }
-  bool has_patches_discarded() const { return at<9>().valid(); }
-  uint64_t patches_discarded() const { return at<9>().as_uint64(); }
-  bool has_invalid_packets() const { return at<10>().valid(); }
-  uint64_t invalid_packets() const { return at<10>().as_uint64(); }
-  bool has_filter_stats() const { return at<11>().valid(); }
-  ::protozero::ConstBytes filter_stats() const { return at<11>().as_bytes(); }
-};
-
-class TraceStats : public ::protozero::Message {
- public:
-  using Decoder = TraceStats_Decoder;
-  enum : int32_t {
-    kBufferStatsFieldNumber = 1,
-    kProducersConnectedFieldNumber = 2,
-    kProducersSeenFieldNumber = 3,
-    kDataSourcesRegisteredFieldNumber = 4,
-    kDataSourcesSeenFieldNumber = 5,
-    kTracingSessionsFieldNumber = 6,
-    kTotalBuffersFieldNumber = 7,
-    kChunksDiscardedFieldNumber = 8,
-    kPatchesDiscardedFieldNumber = 9,
-    kInvalidPacketsFieldNumber = 10,
-    kFilterStatsFieldNumber = 11,
-  };
-  using BufferStats = ::perfetto::protos::pbzero::TraceStats_BufferStats;
-  using FilterStats = ::perfetto::protos::pbzero::TraceStats_FilterStats;
-
-  using FieldMetadata_BufferStats =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kRepeatedNotPacked,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      TraceStats_BufferStats,
-      TraceStats>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_BufferStats kBufferStats() { return {}; }
-  template <typename T = TraceStats_BufferStats> T* add_buffer_stats() {
-    return BeginNestedMessage<T>(1);
-  }
-
-
-  using FieldMetadata_ProducersConnected =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      TraceStats>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_ProducersConnected kProducersConnected() { return {}; }
-  void set_producers_connected(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_ProducersConnected::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_ProducersSeen =
-    ::protozero::proto_utils::FieldMetadata<
-      3,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      TraceStats>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_ProducersSeen kProducersSeen() { return {}; }
-  void set_producers_seen(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_ProducersSeen::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_DataSourcesRegistered =
-    ::protozero::proto_utils::FieldMetadata<
-      4,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      TraceStats>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_DataSourcesRegistered kDataSourcesRegistered() { return {}; }
-  void set_data_sources_registered(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_DataSourcesRegistered::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_DataSourcesSeen =
-    ::protozero::proto_utils::FieldMetadata<
-      5,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      TraceStats>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_DataSourcesSeen kDataSourcesSeen() { return {}; }
-  void set_data_sources_seen(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_DataSourcesSeen::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_TracingSessions =
-    ::protozero::proto_utils::FieldMetadata<
-      6,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      TraceStats>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_TracingSessions kTracingSessions() { return {}; }
-  void set_tracing_sessions(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_TracingSessions::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_TotalBuffers =
-    ::protozero::proto_utils::FieldMetadata<
-      7,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      TraceStats>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_TotalBuffers kTotalBuffers() { return {}; }
-  void set_total_buffers(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_TotalBuffers::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_ChunksDiscarded =
-    ::protozero::proto_utils::FieldMetadata<
-      8,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      TraceStats>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_ChunksDiscarded kChunksDiscarded() { return {}; }
-  void set_chunks_discarded(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_ChunksDiscarded::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_PatchesDiscarded =
-    ::protozero::proto_utils::FieldMetadata<
-      9,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      TraceStats>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_PatchesDiscarded kPatchesDiscarded() { return {}; }
-  void set_patches_discarded(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_PatchesDiscarded::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_InvalidPackets =
-    ::protozero::proto_utils::FieldMetadata<
-      10,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      TraceStats>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_InvalidPackets kInvalidPackets() { return {}; }
-  void set_invalid_packets(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_InvalidPackets::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_FilterStats =
-    ::protozero::proto_utils::FieldMetadata<
-      11,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      TraceStats_FilterStats,
-      TraceStats>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_FilterStats kFilterStats() { return {}; }
-  template <typename T = TraceStats_FilterStats> T* set_filter_stats() {
-    return BeginNestedMessage<T>(11);
-  }
-
-};
-
-class TraceStats_FilterStats_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/4, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  TraceStats_FilterStats_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit TraceStats_FilterStats_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit TraceStats_FilterStats_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_input_packets() const { return at<1>().valid(); }
-  uint64_t input_packets() const { return at<1>().as_uint64(); }
-  bool has_input_bytes() const { return at<2>().valid(); }
-  uint64_t input_bytes() const { return at<2>().as_uint64(); }
-  bool has_output_bytes() const { return at<3>().valid(); }
-  uint64_t output_bytes() const { return at<3>().as_uint64(); }
-  bool has_errors() const { return at<4>().valid(); }
-  uint64_t errors() const { return at<4>().as_uint64(); }
-};
-
-class TraceStats_FilterStats : public ::protozero::Message {
- public:
-  using Decoder = TraceStats_FilterStats_Decoder;
-  enum : int32_t {
-    kInputPacketsFieldNumber = 1,
-    kInputBytesFieldNumber = 2,
-    kOutputBytesFieldNumber = 3,
-    kErrorsFieldNumber = 4,
-  };
-
-  using FieldMetadata_InputPackets =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      TraceStats_FilterStats>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_InputPackets kInputPackets() { return {}; }
-  void set_input_packets(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_InputPackets::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_InputBytes =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      TraceStats_FilterStats>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_InputBytes kInputBytes() { return {}; }
-  void set_input_bytes(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_InputBytes::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_OutputBytes =
-    ::protozero::proto_utils::FieldMetadata<
-      3,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      TraceStats_FilterStats>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_OutputBytes kOutputBytes() { return {}; }
-  void set_output_bytes(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_OutputBytes::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Errors =
-    ::protozero::proto_utils::FieldMetadata<
-      4,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      TraceStats_FilterStats>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Errors kErrors() { return {}; }
-  void set_errors(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Errors::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-};
-
-class TraceStats_BufferStats_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/19, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  TraceStats_BufferStats_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit TraceStats_BufferStats_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit TraceStats_BufferStats_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_buffer_size() const { return at<12>().valid(); }
-  uint64_t buffer_size() const { return at<12>().as_uint64(); }
-  bool has_bytes_written() const { return at<1>().valid(); }
-  uint64_t bytes_written() const { return at<1>().as_uint64(); }
-  bool has_bytes_overwritten() const { return at<13>().valid(); }
-  uint64_t bytes_overwritten() const { return at<13>().as_uint64(); }
-  bool has_bytes_read() const { return at<14>().valid(); }
-  uint64_t bytes_read() const { return at<14>().as_uint64(); }
-  bool has_padding_bytes_written() const { return at<15>().valid(); }
-  uint64_t padding_bytes_written() const { return at<15>().as_uint64(); }
-  bool has_padding_bytes_cleared() const { return at<16>().valid(); }
-  uint64_t padding_bytes_cleared() const { return at<16>().as_uint64(); }
-  bool has_chunks_written() const { return at<2>().valid(); }
-  uint64_t chunks_written() const { return at<2>().as_uint64(); }
-  bool has_chunks_rewritten() const { return at<10>().valid(); }
-  uint64_t chunks_rewritten() const { return at<10>().as_uint64(); }
-  bool has_chunks_overwritten() const { return at<3>().valid(); }
-  uint64_t chunks_overwritten() const { return at<3>().as_uint64(); }
-  bool has_chunks_discarded() const { return at<18>().valid(); }
-  uint64_t chunks_discarded() const { return at<18>().as_uint64(); }
-  bool has_chunks_read() const { return at<17>().valid(); }
-  uint64_t chunks_read() const { return at<17>().as_uint64(); }
-  bool has_chunks_committed_out_of_order() const { return at<11>().valid(); }
-  uint64_t chunks_committed_out_of_order() const { return at<11>().as_uint64(); }
-  bool has_write_wrap_count() const { return at<4>().valid(); }
-  uint64_t write_wrap_count() const { return at<4>().as_uint64(); }
-  bool has_patches_succeeded() const { return at<5>().valid(); }
-  uint64_t patches_succeeded() const { return at<5>().as_uint64(); }
-  bool has_patches_failed() const { return at<6>().valid(); }
-  uint64_t patches_failed() const { return at<6>().as_uint64(); }
-  bool has_readaheads_succeeded() const { return at<7>().valid(); }
-  uint64_t readaheads_succeeded() const { return at<7>().as_uint64(); }
-  bool has_readaheads_failed() const { return at<8>().valid(); }
-  uint64_t readaheads_failed() const { return at<8>().as_uint64(); }
-  bool has_abi_violations() const { return at<9>().valid(); }
-  uint64_t abi_violations() const { return at<9>().as_uint64(); }
-  bool has_trace_writer_packet_loss() const { return at<19>().valid(); }
-  uint64_t trace_writer_packet_loss() const { return at<19>().as_uint64(); }
-};
-
-class TraceStats_BufferStats : public ::protozero::Message {
- public:
-  using Decoder = TraceStats_BufferStats_Decoder;
-  enum : int32_t {
-    kBufferSizeFieldNumber = 12,
-    kBytesWrittenFieldNumber = 1,
-    kBytesOverwrittenFieldNumber = 13,
-    kBytesReadFieldNumber = 14,
-    kPaddingBytesWrittenFieldNumber = 15,
-    kPaddingBytesClearedFieldNumber = 16,
-    kChunksWrittenFieldNumber = 2,
-    kChunksRewrittenFieldNumber = 10,
-    kChunksOverwrittenFieldNumber = 3,
-    kChunksDiscardedFieldNumber = 18,
-    kChunksReadFieldNumber = 17,
-    kChunksCommittedOutOfOrderFieldNumber = 11,
-    kWriteWrapCountFieldNumber = 4,
-    kPatchesSucceededFieldNumber = 5,
-    kPatchesFailedFieldNumber = 6,
-    kReadaheadsSucceededFieldNumber = 7,
-    kReadaheadsFailedFieldNumber = 8,
-    kAbiViolationsFieldNumber = 9,
-    kTraceWriterPacketLossFieldNumber = 19,
-  };
-
-  using FieldMetadata_BufferSize =
-    ::protozero::proto_utils::FieldMetadata<
-      12,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      TraceStats_BufferStats>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_BufferSize kBufferSize() { return {}; }
-  void set_buffer_size(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_BufferSize::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_BytesWritten =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      TraceStats_BufferStats>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_BytesWritten kBytesWritten() { return {}; }
-  void set_bytes_written(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_BytesWritten::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_BytesOverwritten =
-    ::protozero::proto_utils::FieldMetadata<
-      13,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      TraceStats_BufferStats>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_BytesOverwritten kBytesOverwritten() { return {}; }
-  void set_bytes_overwritten(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_BytesOverwritten::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_BytesRead =
-    ::protozero::proto_utils::FieldMetadata<
-      14,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      TraceStats_BufferStats>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_BytesRead kBytesRead() { return {}; }
-  void set_bytes_read(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_BytesRead::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_PaddingBytesWritten =
-    ::protozero::proto_utils::FieldMetadata<
-      15,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      TraceStats_BufferStats>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_PaddingBytesWritten kPaddingBytesWritten() { return {}; }
-  void set_padding_bytes_written(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_PaddingBytesWritten::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_PaddingBytesCleared =
-    ::protozero::proto_utils::FieldMetadata<
-      16,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      TraceStats_BufferStats>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_PaddingBytesCleared kPaddingBytesCleared() { return {}; }
-  void set_padding_bytes_cleared(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_PaddingBytesCleared::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_ChunksWritten =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      TraceStats_BufferStats>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_ChunksWritten kChunksWritten() { return {}; }
-  void set_chunks_written(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_ChunksWritten::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_ChunksRewritten =
-    ::protozero::proto_utils::FieldMetadata<
-      10,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      TraceStats_BufferStats>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_ChunksRewritten kChunksRewritten() { return {}; }
-  void set_chunks_rewritten(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_ChunksRewritten::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_ChunksOverwritten =
-    ::protozero::proto_utils::FieldMetadata<
-      3,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      TraceStats_BufferStats>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_ChunksOverwritten kChunksOverwritten() { return {}; }
-  void set_chunks_overwritten(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_ChunksOverwritten::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_ChunksDiscarded =
-    ::protozero::proto_utils::FieldMetadata<
-      18,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      TraceStats_BufferStats>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_ChunksDiscarded kChunksDiscarded() { return {}; }
-  void set_chunks_discarded(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_ChunksDiscarded::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_ChunksRead =
-    ::protozero::proto_utils::FieldMetadata<
-      17,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      TraceStats_BufferStats>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_ChunksRead kChunksRead() { return {}; }
-  void set_chunks_read(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_ChunksRead::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_ChunksCommittedOutOfOrder =
-    ::protozero::proto_utils::FieldMetadata<
-      11,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      TraceStats_BufferStats>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_ChunksCommittedOutOfOrder kChunksCommittedOutOfOrder() { return {}; }
-  void set_chunks_committed_out_of_order(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_ChunksCommittedOutOfOrder::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_WriteWrapCount =
-    ::protozero::proto_utils::FieldMetadata<
-      4,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      TraceStats_BufferStats>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_WriteWrapCount kWriteWrapCount() { return {}; }
-  void set_write_wrap_count(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_WriteWrapCount::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_PatchesSucceeded =
-    ::protozero::proto_utils::FieldMetadata<
-      5,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      TraceStats_BufferStats>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_PatchesSucceeded kPatchesSucceeded() { return {}; }
-  void set_patches_succeeded(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_PatchesSucceeded::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_PatchesFailed =
-    ::protozero::proto_utils::FieldMetadata<
-      6,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      TraceStats_BufferStats>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_PatchesFailed kPatchesFailed() { return {}; }
-  void set_patches_failed(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_PatchesFailed::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_ReadaheadsSucceeded =
-    ::protozero::proto_utils::FieldMetadata<
-      7,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      TraceStats_BufferStats>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_ReadaheadsSucceeded kReadaheadsSucceeded() { return {}; }
-  void set_readaheads_succeeded(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_ReadaheadsSucceeded::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_ReadaheadsFailed =
-    ::protozero::proto_utils::FieldMetadata<
-      8,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      TraceStats_BufferStats>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_ReadaheadsFailed kReadaheadsFailed() { return {}; }
-  void set_readaheads_failed(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_ReadaheadsFailed::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_AbiViolations =
-    ::protozero::proto_utils::FieldMetadata<
-      9,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      TraceStats_BufferStats>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_AbiViolations kAbiViolations() { return {}; }
-  void set_abi_violations(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_AbiViolations::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_TraceWriterPacketLoss =
-    ::protozero::proto_utils::FieldMetadata<
-      19,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      TraceStats_BufferStats>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_TraceWriterPacketLoss kTraceWriterPacketLoss() { return {}; }
-  void set_trace_writer_packet_loss(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_TraceWriterPacketLoss::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-};
-
-} // Namespace.
-} // Namespace.
-} // Namespace.
-#endif  // Include guard.
-// gen_amalgamated begin header: gen/protos/perfetto/common/tracing_service_capabilities.pbzero.h
-// Autogenerated by the ProtoZero compiler plugin. DO NOT EDIT.
-
-#ifndef PERFETTO_PROTOS_PROTOS_PERFETTO_COMMON_TRACING_SERVICE_CAPABILITIES_PROTO_H_
-#define PERFETTO_PROTOS_PROTOS_PERFETTO_COMMON_TRACING_SERVICE_CAPABILITIES_PROTO_H_
-
-#include <stddef.h>
-#include <stdint.h>
-
-// gen_amalgamated expanded: #include "perfetto/protozero/field_writer.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/message.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/packed_repeated_fields.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/proto_decoder.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/proto_utils.h"
-
-namespace perfetto {
-namespace protos {
-namespace pbzero {
-
-enum ObservableEvents_Type : int32_t;
-
-class TracingServiceCapabilities_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/3, /*HAS_NONPACKED_REPEATED_FIELDS=*/true> {
- public:
-  TracingServiceCapabilities_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit TracingServiceCapabilities_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit TracingServiceCapabilities_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_has_query_capabilities() const { return at<1>().valid(); }
-  bool has_query_capabilities() const { return at<1>().as_bool(); }
-  bool has_observable_events() const { return at<2>().valid(); }
-  ::protozero::RepeatedFieldIterator<int32_t> observable_events() const { return GetRepeated<int32_t>(2); }
-  bool has_has_trace_config_output_path() const { return at<3>().valid(); }
-  bool has_trace_config_output_path() const { return at<3>().as_bool(); }
-};
-
-class TracingServiceCapabilities : public ::protozero::Message {
- public:
-  using Decoder = TracingServiceCapabilities_Decoder;
-  enum : int32_t {
-    kHasQueryCapabilitiesFieldNumber = 1,
-    kObservableEventsFieldNumber = 2,
-    kHasTraceConfigOutputPathFieldNumber = 3,
-  };
-
-  using FieldMetadata_HasQueryCapabilities =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kBool,
-      bool,
-      TracingServiceCapabilities>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_HasQueryCapabilities kHasQueryCapabilities() { return {}; }
-  void set_has_query_capabilities(bool value) {
-    static constexpr uint32_t field_id = FieldMetadata_HasQueryCapabilities::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kBool>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_ObservableEvents =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kRepeatedNotPacked,
-      ::protozero::proto_utils::ProtoSchemaType::kEnum,
-      ::perfetto::protos::pbzero::ObservableEvents_Type,
-      TracingServiceCapabilities>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_ObservableEvents kObservableEvents() { return {}; }
-  void add_observable_events(::perfetto::protos::pbzero::ObservableEvents_Type value) {
-    static constexpr uint32_t field_id = FieldMetadata_ObservableEvents::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kEnum>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_HasTraceConfigOutputPath =
-    ::protozero::proto_utils::FieldMetadata<
-      3,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kBool,
-      bool,
-      TracingServiceCapabilities>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_HasTraceConfigOutputPath kHasTraceConfigOutputPath() { return {}; }
-  void set_has_trace_config_output_path(bool value) {
-    static constexpr uint32_t field_id = FieldMetadata_HasTraceConfigOutputPath::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kBool>
-        ::Append(*this, field_id, value);
-  }
-};
-
-} // Namespace.
-} // Namespace.
-} // Namespace.
-#endif  // Include guard.
-// gen_amalgamated begin header: gen/protos/perfetto/common/tracing_service_state.pbzero.h
-// Autogenerated by the ProtoZero compiler plugin. DO NOT EDIT.
-
-#ifndef PERFETTO_PROTOS_PROTOS_PERFETTO_COMMON_TRACING_SERVICE_STATE_PROTO_H_
-#define PERFETTO_PROTOS_PROTOS_PERFETTO_COMMON_TRACING_SERVICE_STATE_PROTO_H_
-
-#include <stddef.h>
-#include <stdint.h>
-
-// gen_amalgamated expanded: #include "perfetto/protozero/field_writer.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/message.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/packed_repeated_fields.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/proto_decoder.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/proto_utils.h"
-
-namespace perfetto {
-namespace protos {
-namespace pbzero {
-
-class DataSourceDescriptor;
-class TracingServiceState_DataSource;
-class TracingServiceState_Producer;
-
-class TracingServiceState_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/5, /*HAS_NONPACKED_REPEATED_FIELDS=*/true> {
- public:
-  TracingServiceState_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit TracingServiceState_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit TracingServiceState_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_producers() const { return at<1>().valid(); }
-  ::protozero::RepeatedFieldIterator<::protozero::ConstBytes> producers() const { return GetRepeated<::protozero::ConstBytes>(1); }
-  bool has_data_sources() const { return at<2>().valid(); }
-  ::protozero::RepeatedFieldIterator<::protozero::ConstBytes> data_sources() const { return GetRepeated<::protozero::ConstBytes>(2); }
-  bool has_num_sessions() const { return at<3>().valid(); }
-  int32_t num_sessions() const { return at<3>().as_int32(); }
-  bool has_num_sessions_started() const { return at<4>().valid(); }
-  int32_t num_sessions_started() const { return at<4>().as_int32(); }
-  bool has_tracing_service_version() const { return at<5>().valid(); }
-  ::protozero::ConstChars tracing_service_version() const { return at<5>().as_string(); }
-};
-
-class TracingServiceState : public ::protozero::Message {
- public:
-  using Decoder = TracingServiceState_Decoder;
-  enum : int32_t {
-    kProducersFieldNumber = 1,
-    kDataSourcesFieldNumber = 2,
-    kNumSessionsFieldNumber = 3,
-    kNumSessionsStartedFieldNumber = 4,
-    kTracingServiceVersionFieldNumber = 5,
-  };
-  using Producer = ::perfetto::protos::pbzero::TracingServiceState_Producer;
-  using DataSource = ::perfetto::protos::pbzero::TracingServiceState_DataSource;
-
-  using FieldMetadata_Producers =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kRepeatedNotPacked,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      TracingServiceState_Producer,
-      TracingServiceState>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Producers kProducers() { return {}; }
-  template <typename T = TracingServiceState_Producer> T* add_producers() {
-    return BeginNestedMessage<T>(1);
-  }
-
-
-  using FieldMetadata_DataSources =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kRepeatedNotPacked,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      TracingServiceState_DataSource,
-      TracingServiceState>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_DataSources kDataSources() { return {}; }
-  template <typename T = TracingServiceState_DataSource> T* add_data_sources() {
-    return BeginNestedMessage<T>(2);
-  }
-
-
-  using FieldMetadata_NumSessions =
-    ::protozero::proto_utils::FieldMetadata<
-      3,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt32,
-      int32_t,
-      TracingServiceState>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_NumSessions kNumSessions() { return {}; }
-  void set_num_sessions(int32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_NumSessions::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_NumSessionsStarted =
-    ::protozero::proto_utils::FieldMetadata<
-      4,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt32,
-      int32_t,
-      TracingServiceState>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_NumSessionsStarted kNumSessionsStarted() { return {}; }
-  void set_num_sessions_started(int32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_NumSessionsStarted::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_TracingServiceVersion =
-    ::protozero::proto_utils::FieldMetadata<
-      5,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kString,
-      std::string,
-      TracingServiceState>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_TracingServiceVersion kTracingServiceVersion() { return {}; }
-  void set_tracing_service_version(const char* data, size_t size) {
-    AppendBytes(FieldMetadata_TracingServiceVersion::kFieldId, data, size);
-  }
-  void set_tracing_service_version(std::string value) {
-    static constexpr uint32_t field_id = FieldMetadata_TracingServiceVersion::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kString>
-        ::Append(*this, field_id, value);
-  }
-};
-
-class TracingServiceState_DataSource_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/2, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  TracingServiceState_DataSource_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit TracingServiceState_DataSource_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit TracingServiceState_DataSource_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_ds_descriptor() const { return at<1>().valid(); }
-  ::protozero::ConstBytes ds_descriptor() const { return at<1>().as_bytes(); }
-  bool has_producer_id() const { return at<2>().valid(); }
-  int32_t producer_id() const { return at<2>().as_int32(); }
-};
-
-class TracingServiceState_DataSource : public ::protozero::Message {
- public:
-  using Decoder = TracingServiceState_DataSource_Decoder;
-  enum : int32_t {
-    kDsDescriptorFieldNumber = 1,
-    kProducerIdFieldNumber = 2,
-  };
-
-  using FieldMetadata_DsDescriptor =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      DataSourceDescriptor,
-      TracingServiceState_DataSource>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_DsDescriptor kDsDescriptor() { return {}; }
-  template <typename T = DataSourceDescriptor> T* set_ds_descriptor() {
-    return BeginNestedMessage<T>(1);
-  }
-
-
-  using FieldMetadata_ProducerId =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt32,
-      int32_t,
-      TracingServiceState_DataSource>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_ProducerId kProducerId() { return {}; }
-  void set_producer_id(int32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_ProducerId::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt32>
-        ::Append(*this, field_id, value);
-  }
-};
-
-class TracingServiceState_Producer_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/4, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  TracingServiceState_Producer_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit TracingServiceState_Producer_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit TracingServiceState_Producer_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_id() const { return at<1>().valid(); }
-  int32_t id() const { return at<1>().as_int32(); }
-  bool has_name() const { return at<2>().valid(); }
-  ::protozero::ConstChars name() const { return at<2>().as_string(); }
-  bool has_uid() const { return at<3>().valid(); }
-  int32_t uid() const { return at<3>().as_int32(); }
-  bool has_sdk_version() const { return at<4>().valid(); }
-  ::protozero::ConstChars sdk_version() const { return at<4>().as_string(); }
-};
-
-class TracingServiceState_Producer : public ::protozero::Message {
- public:
-  using Decoder = TracingServiceState_Producer_Decoder;
-  enum : int32_t {
-    kIdFieldNumber = 1,
-    kNameFieldNumber = 2,
-    kUidFieldNumber = 3,
-    kSdkVersionFieldNumber = 4,
-  };
-
-  using FieldMetadata_Id =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt32,
-      int32_t,
-      TracingServiceState_Producer>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Id kId() { return {}; }
-  void set_id(int32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Id::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Name =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kString,
-      std::string,
-      TracingServiceState_Producer>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Name kName() { return {}; }
-  void set_name(const char* data, size_t size) {
-    AppendBytes(FieldMetadata_Name::kFieldId, data, size);
-  }
-  void set_name(std::string value) {
-    static constexpr uint32_t field_id = FieldMetadata_Name::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kString>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Uid =
-    ::protozero::proto_utils::FieldMetadata<
-      3,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt32,
-      int32_t,
-      TracingServiceState_Producer>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Uid kUid() { return {}; }
-  void set_uid(int32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Uid::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_SdkVersion =
-    ::protozero::proto_utils::FieldMetadata<
-      4,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kString,
-      std::string,
-      TracingServiceState_Producer>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_SdkVersion kSdkVersion() { return {}; }
-  void set_sdk_version(const char* data, size_t size) {
-    AppendBytes(FieldMetadata_SdkVersion::kFieldId, data, size);
-  }
-  void set_sdk_version(std::string value) {
-    static constexpr uint32_t field_id = FieldMetadata_SdkVersion::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kString>
-        ::Append(*this, field_id, value);
-  }
-};
-
-} // Namespace.
-} // Namespace.
-} // Namespace.
-#endif  // Include guard.
-// gen_amalgamated begin header: gen/protos/perfetto/common/track_event_descriptor.pbzero.h
-// Autogenerated by the ProtoZero compiler plugin. DO NOT EDIT.
-
-#ifndef PERFETTO_PROTOS_PROTOS_PERFETTO_COMMON_TRACK_EVENT_DESCRIPTOR_PROTO_H_
-#define PERFETTO_PROTOS_PROTOS_PERFETTO_COMMON_TRACK_EVENT_DESCRIPTOR_PROTO_H_
-
-#include <stddef.h>
-#include <stdint.h>
-
-// gen_amalgamated expanded: #include "perfetto/protozero/field_writer.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/message.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/packed_repeated_fields.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/proto_decoder.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/proto_utils.h"
-
-namespace perfetto {
-namespace protos {
-namespace pbzero {
-
-class TrackEventCategory;
-
-class TrackEventDescriptor_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/1, /*HAS_NONPACKED_REPEATED_FIELDS=*/true> {
- public:
-  TrackEventDescriptor_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit TrackEventDescriptor_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit TrackEventDescriptor_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_available_categories() const { return at<1>().valid(); }
-  ::protozero::RepeatedFieldIterator<::protozero::ConstBytes> available_categories() const { return GetRepeated<::protozero::ConstBytes>(1); }
-};
-
-class TrackEventDescriptor : public ::protozero::Message {
- public:
-  using Decoder = TrackEventDescriptor_Decoder;
-  enum : int32_t {
-    kAvailableCategoriesFieldNumber = 1,
-  };
-
-  using FieldMetadata_AvailableCategories =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kRepeatedNotPacked,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      TrackEventCategory,
-      TrackEventDescriptor>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_AvailableCategories kAvailableCategories() { return {}; }
-  template <typename T = TrackEventCategory> T* add_available_categories() {
-    return BeginNestedMessage<T>(1);
-  }
-
-};
-
-class TrackEventCategory_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/3, /*HAS_NONPACKED_REPEATED_FIELDS=*/true> {
- public:
-  TrackEventCategory_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit TrackEventCategory_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit TrackEventCategory_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_name() const { return at<1>().valid(); }
-  ::protozero::ConstChars name() const { return at<1>().as_string(); }
-  bool has_description() const { return at<2>().valid(); }
-  ::protozero::ConstChars description() const { return at<2>().as_string(); }
-  bool has_tags() const { return at<3>().valid(); }
-  ::protozero::RepeatedFieldIterator<::protozero::ConstChars> tags() const { return GetRepeated<::protozero::ConstChars>(3); }
-};
-
-class TrackEventCategory : public ::protozero::Message {
- public:
-  using Decoder = TrackEventCategory_Decoder;
-  enum : int32_t {
-    kNameFieldNumber = 1,
-    kDescriptionFieldNumber = 2,
-    kTagsFieldNumber = 3,
-  };
-
-  using FieldMetadata_Name =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kString,
-      std::string,
-      TrackEventCategory>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Name kName() { return {}; }
-  void set_name(const char* data, size_t size) {
-    AppendBytes(FieldMetadata_Name::kFieldId, data, size);
-  }
-  void set_name(std::string value) {
-    static constexpr uint32_t field_id = FieldMetadata_Name::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kString>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Description =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kString,
-      std::string,
-      TrackEventCategory>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Description kDescription() { return {}; }
-  void set_description(const char* data, size_t size) {
-    AppendBytes(FieldMetadata_Description::kFieldId, data, size);
-  }
-  void set_description(std::string value) {
-    static constexpr uint32_t field_id = FieldMetadata_Description::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kString>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Tags =
-    ::protozero::proto_utils::FieldMetadata<
-      3,
-      ::protozero::proto_utils::RepetitionType::kRepeatedNotPacked,
-      ::protozero::proto_utils::ProtoSchemaType::kString,
-      std::string,
-      TrackEventCategory>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Tags kTags() { return {}; }
-  void add_tags(const char* data, size_t size) {
-    AppendBytes(FieldMetadata_Tags::kFieldId, data, size);
-  }
-  void add_tags(std::string value) {
-    static constexpr uint32_t field_id = FieldMetadata_Tags::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kString>
-        ::Append(*this, field_id, value);
-  }
-};
-
-} // Namespace.
-} // Namespace.
-} // Namespace.
-#endif  // Include guard.
-// gen_amalgamated begin header: gen/protos/perfetto/config/track_event/track_event_config.gen.h
-// DO NOT EDIT. Autogenerated by Perfetto cppgen_plugin
-#ifndef PERFETTO_PROTOS_PROTOS_PERFETTO_CONFIG_TRACK_EVENT_TRACK_EVENT_CONFIG_PROTO_CPP_H_
-#define PERFETTO_PROTOS_PROTOS_PERFETTO_CONFIG_TRACK_EVENT_TRACK_EVENT_CONFIG_PROTO_CPP_H_
-
-#include <stdint.h>
-#include <bitset>
-#include <vector>
-#include <string>
-#include <type_traits>
-
-// gen_amalgamated expanded: #include "perfetto/protozero/cpp_message_obj.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/copyable_ptr.h"
-// gen_amalgamated expanded: #include "perfetto/base/export.h"
-
-namespace perfetto {
-namespace protos {
-namespace gen {
-class TrackEventConfig;
-}  // namespace perfetto
-}  // namespace protos
-}  // namespace gen
-
-namespace protozero {
-class Message;
-}  // namespace protozero
-
-namespace perfetto {
-namespace protos {
-namespace gen {
-
-class PERFETTO_EXPORT TrackEventConfig : public ::protozero::CppMessageObj {
- public:
-  enum FieldNumbers {
-    kDisabledCategoriesFieldNumber = 1,
-    kEnabledCategoriesFieldNumber = 2,
-    kDisabledTagsFieldNumber = 3,
-    kEnabledTagsFieldNumber = 4,
-  };
-
-  TrackEventConfig();
-  ~TrackEventConfig() override;
-  TrackEventConfig(TrackEventConfig&&) noexcept;
-  TrackEventConfig& operator=(TrackEventConfig&&);
-  TrackEventConfig(const TrackEventConfig&);
-  TrackEventConfig& operator=(const TrackEventConfig&);
-  bool operator==(const TrackEventConfig&) const;
-  bool operator!=(const TrackEventConfig& other) const { return !(*this == other); }
-
-  bool ParseFromArray(const void*, size_t) override;
-  std::string SerializeAsString() const override;
-  std::vector<uint8_t> SerializeAsArray() const override;
-  void Serialize(::protozero::Message*) const;
-
-  const std::vector<std::string>& disabled_categories() const { return disabled_categories_; }
-  std::vector<std::string>* mutable_disabled_categories() { return &disabled_categories_; }
-  int disabled_categories_size() const { return static_cast<int>(disabled_categories_.size()); }
-  void clear_disabled_categories() { disabled_categories_.clear(); }
-  void add_disabled_categories(std::string value) { disabled_categories_.emplace_back(value); }
-  std::string* add_disabled_categories() { disabled_categories_.emplace_back(); return &disabled_categories_.back(); }
-
-  const std::vector<std::string>& enabled_categories() const { return enabled_categories_; }
-  std::vector<std::string>* mutable_enabled_categories() { return &enabled_categories_; }
-  int enabled_categories_size() const { return static_cast<int>(enabled_categories_.size()); }
-  void clear_enabled_categories() { enabled_categories_.clear(); }
-  void add_enabled_categories(std::string value) { enabled_categories_.emplace_back(value); }
-  std::string* add_enabled_categories() { enabled_categories_.emplace_back(); return &enabled_categories_.back(); }
-
-  const std::vector<std::string>& disabled_tags() const { return disabled_tags_; }
-  std::vector<std::string>* mutable_disabled_tags() { return &disabled_tags_; }
-  int disabled_tags_size() const { return static_cast<int>(disabled_tags_.size()); }
-  void clear_disabled_tags() { disabled_tags_.clear(); }
-  void add_disabled_tags(std::string value) { disabled_tags_.emplace_back(value); }
-  std::string* add_disabled_tags() { disabled_tags_.emplace_back(); return &disabled_tags_.back(); }
-
-  const std::vector<std::string>& enabled_tags() const { return enabled_tags_; }
-  std::vector<std::string>* mutable_enabled_tags() { return &enabled_tags_; }
-  int enabled_tags_size() const { return static_cast<int>(enabled_tags_.size()); }
-  void clear_enabled_tags() { enabled_tags_.clear(); }
-  void add_enabled_tags(std::string value) { enabled_tags_.emplace_back(value); }
-  std::string* add_enabled_tags() { enabled_tags_.emplace_back(); return &enabled_tags_.back(); }
-
- private:
-  std::vector<std::string> disabled_categories_;
-  std::vector<std::string> enabled_categories_;
-  std::vector<std::string> disabled_tags_;
-  std::vector<std::string> enabled_tags_;
-
-  // Allows to preserve unknown protobuf fields for compatibility
-  // with future versions of .proto files.
-  std::string unknown_fields_;
-
-  std::bitset<5> _has_field_{};
-};
-
-}  // namespace perfetto
-}  // namespace protos
-}  // namespace gen
-
-#endif  // PERFETTO_PROTOS_PROTOS_PERFETTO_CONFIG_TRACK_EVENT_TRACK_EVENT_CONFIG_PROTO_CPP_H_
-// gen_amalgamated begin header: gen/protos/perfetto/config/android/android_log_config.pbzero.h
-// Autogenerated by the ProtoZero compiler plugin. DO NOT EDIT.
-
-#ifndef PERFETTO_PROTOS_PROTOS_PERFETTO_CONFIG_ANDROID_ANDROID_LOG_CONFIG_PROTO_H_
-#define PERFETTO_PROTOS_PROTOS_PERFETTO_CONFIG_ANDROID_ANDROID_LOG_CONFIG_PROTO_H_
-
-#include <stddef.h>
-#include <stdint.h>
-
-// gen_amalgamated expanded: #include "perfetto/protozero/field_writer.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/message.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/packed_repeated_fields.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/proto_decoder.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/proto_utils.h"
-
-namespace perfetto {
-namespace protos {
-namespace pbzero {
-
-enum AndroidLogId : int32_t;
-enum AndroidLogPriority : int32_t;
-
-class AndroidLogConfig_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/4, /*HAS_NONPACKED_REPEATED_FIELDS=*/true> {
- public:
-  AndroidLogConfig_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit AndroidLogConfig_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit AndroidLogConfig_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_log_ids() const { return at<1>().valid(); }
-  ::protozero::RepeatedFieldIterator<int32_t> log_ids() const { return GetRepeated<int32_t>(1); }
-  bool has_min_prio() const { return at<3>().valid(); }
-  int32_t min_prio() const { return at<3>().as_int32(); }
-  bool has_filter_tags() const { return at<4>().valid(); }
-  ::protozero::RepeatedFieldIterator<::protozero::ConstChars> filter_tags() const { return GetRepeated<::protozero::ConstChars>(4); }
-};
-
-class AndroidLogConfig : public ::protozero::Message {
- public:
-  using Decoder = AndroidLogConfig_Decoder;
-  enum : int32_t {
-    kLogIdsFieldNumber = 1,
-    kMinPrioFieldNumber = 3,
-    kFilterTagsFieldNumber = 4,
-  };
-
-  using FieldMetadata_LogIds =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kRepeatedNotPacked,
-      ::protozero::proto_utils::ProtoSchemaType::kEnum,
-      ::perfetto::protos::pbzero::AndroidLogId,
-      AndroidLogConfig>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_LogIds kLogIds() { return {}; }
-  void add_log_ids(::perfetto::protos::pbzero::AndroidLogId value) {
-    static constexpr uint32_t field_id = FieldMetadata_LogIds::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kEnum>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_MinPrio =
-    ::protozero::proto_utils::FieldMetadata<
-      3,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kEnum,
-      ::perfetto::protos::pbzero::AndroidLogPriority,
-      AndroidLogConfig>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_MinPrio kMinPrio() { return {}; }
-  void set_min_prio(::perfetto::protos::pbzero::AndroidLogPriority value) {
-    static constexpr uint32_t field_id = FieldMetadata_MinPrio::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kEnum>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_FilterTags =
-    ::protozero::proto_utils::FieldMetadata<
-      4,
-      ::protozero::proto_utils::RepetitionType::kRepeatedNotPacked,
-      ::protozero::proto_utils::ProtoSchemaType::kString,
-      std::string,
-      AndroidLogConfig>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_FilterTags kFilterTags() { return {}; }
-  void add_filter_tags(const char* data, size_t size) {
-    AppendBytes(FieldMetadata_FilterTags::kFieldId, data, size);
-  }
-  void add_filter_tags(std::string value) {
-    static constexpr uint32_t field_id = FieldMetadata_FilterTags::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kString>
-        ::Append(*this, field_id, value);
-  }
-};
-
-} // Namespace.
-} // Namespace.
-} // Namespace.
-#endif  // Include guard.
-// gen_amalgamated begin header: gen/protos/perfetto/config/android/android_polled_state_config.pbzero.h
-// Autogenerated by the ProtoZero compiler plugin. DO NOT EDIT.
-
-#ifndef PERFETTO_PROTOS_PROTOS_PERFETTO_CONFIG_ANDROID_ANDROID_POLLED_STATE_CONFIG_PROTO_H_
-#define PERFETTO_PROTOS_PROTOS_PERFETTO_CONFIG_ANDROID_ANDROID_POLLED_STATE_CONFIG_PROTO_H_
-
-#include <stddef.h>
-#include <stdint.h>
-
-// gen_amalgamated expanded: #include "perfetto/protozero/field_writer.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/message.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/packed_repeated_fields.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/proto_decoder.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/proto_utils.h"
-
-namespace perfetto {
-namespace protos {
-namespace pbzero {
-
-
-class AndroidPolledStateConfig_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/1, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  AndroidPolledStateConfig_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit AndroidPolledStateConfig_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit AndroidPolledStateConfig_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_poll_ms() const { return at<1>().valid(); }
-  uint32_t poll_ms() const { return at<1>().as_uint32(); }
-};
-
-class AndroidPolledStateConfig : public ::protozero::Message {
- public:
-  using Decoder = AndroidPolledStateConfig_Decoder;
-  enum : int32_t {
-    kPollMsFieldNumber = 1,
-  };
-
-  using FieldMetadata_PollMs =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      AndroidPolledStateConfig>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_PollMs kPollMs() { return {}; }
-  void set_poll_ms(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_PollMs::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-};
-
-} // Namespace.
-} // Namespace.
-} // Namespace.
-#endif  // Include guard.
-// gen_amalgamated begin header: gen/protos/perfetto/config/android/packages_list_config.pbzero.h
-// Autogenerated by the ProtoZero compiler plugin. DO NOT EDIT.
-
-#ifndef PERFETTO_PROTOS_PROTOS_PERFETTO_CONFIG_ANDROID_PACKAGES_LIST_CONFIG_PROTO_H_
-#define PERFETTO_PROTOS_PROTOS_PERFETTO_CONFIG_ANDROID_PACKAGES_LIST_CONFIG_PROTO_H_
-
-#include <stddef.h>
-#include <stdint.h>
-
-// gen_amalgamated expanded: #include "perfetto/protozero/field_writer.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/message.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/packed_repeated_fields.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/proto_decoder.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/proto_utils.h"
-
-namespace perfetto {
-namespace protos {
-namespace pbzero {
-
-
-class PackagesListConfig_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/1, /*HAS_NONPACKED_REPEATED_FIELDS=*/true> {
- public:
-  PackagesListConfig_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit PackagesListConfig_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit PackagesListConfig_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_package_name_filter() const { return at<1>().valid(); }
-  ::protozero::RepeatedFieldIterator<::protozero::ConstChars> package_name_filter() const { return GetRepeated<::protozero::ConstChars>(1); }
-};
-
-class PackagesListConfig : public ::protozero::Message {
- public:
-  using Decoder = PackagesListConfig_Decoder;
-  enum : int32_t {
-    kPackageNameFilterFieldNumber = 1,
-  };
-
-  using FieldMetadata_PackageNameFilter =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kRepeatedNotPacked,
-      ::protozero::proto_utils::ProtoSchemaType::kString,
-      std::string,
-      PackagesListConfig>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_PackageNameFilter kPackageNameFilter() { return {}; }
-  void add_package_name_filter(const char* data, size_t size) {
-    AppendBytes(FieldMetadata_PackageNameFilter::kFieldId, data, size);
-  }
-  void add_package_name_filter(std::string value) {
-    static constexpr uint32_t field_id = FieldMetadata_PackageNameFilter::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kString>
-        ::Append(*this, field_id, value);
-  }
-};
-
-} // Namespace.
-} // Namespace.
-} // Namespace.
-#endif  // Include guard.
-// gen_amalgamated begin header: gen/protos/perfetto/config/ftrace/ftrace_config.pbzero.h
-// Autogenerated by the ProtoZero compiler plugin. DO NOT EDIT.
-
-#ifndef PERFETTO_PROTOS_PROTOS_PERFETTO_CONFIG_FTRACE_FTRACE_CONFIG_PROTO_H_
-#define PERFETTO_PROTOS_PROTOS_PERFETTO_CONFIG_FTRACE_FTRACE_CONFIG_PROTO_H_
-
-#include <stddef.h>
-#include <stdint.h>
-
-// gen_amalgamated expanded: #include "perfetto/protozero/field_writer.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/message.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/packed_repeated_fields.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/proto_decoder.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/proto_utils.h"
-
-namespace perfetto {
-namespace protos {
-namespace pbzero {
-
-class FtraceConfig_CompactSchedConfig;
-
-class FtraceConfig_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/14, /*HAS_NONPACKED_REPEATED_FIELDS=*/true> {
- public:
-  FtraceConfig_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit FtraceConfig_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit FtraceConfig_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_ftrace_events() const { return at<1>().valid(); }
-  ::protozero::RepeatedFieldIterator<::protozero::ConstChars> ftrace_events() const { return GetRepeated<::protozero::ConstChars>(1); }
-  bool has_atrace_categories() const { return at<2>().valid(); }
-  ::protozero::RepeatedFieldIterator<::protozero::ConstChars> atrace_categories() const { return GetRepeated<::protozero::ConstChars>(2); }
-  bool has_atrace_apps() const { return at<3>().valid(); }
-  ::protozero::RepeatedFieldIterator<::protozero::ConstChars> atrace_apps() const { return GetRepeated<::protozero::ConstChars>(3); }
-  bool has_buffer_size_kb() const { return at<10>().valid(); }
-  uint32_t buffer_size_kb() const { return at<10>().as_uint32(); }
-  bool has_drain_period_ms() const { return at<11>().valid(); }
-  uint32_t drain_period_ms() const { return at<11>().as_uint32(); }
-  bool has_compact_sched() const { return at<12>().valid(); }
-  ::protozero::ConstBytes compact_sched() const { return at<12>().as_bytes(); }
-  bool has_symbolize_ksyms() const { return at<13>().valid(); }
-  bool symbolize_ksyms() const { return at<13>().as_bool(); }
-  bool has_initialize_ksyms_synchronously_for_testing() const { return at<14>().valid(); }
-  bool initialize_ksyms_synchronously_for_testing() const { return at<14>().as_bool(); }
-};
-
-class FtraceConfig : public ::protozero::Message {
- public:
-  using Decoder = FtraceConfig_Decoder;
-  enum : int32_t {
-    kFtraceEventsFieldNumber = 1,
-    kAtraceCategoriesFieldNumber = 2,
-    kAtraceAppsFieldNumber = 3,
-    kBufferSizeKbFieldNumber = 10,
-    kDrainPeriodMsFieldNumber = 11,
-    kCompactSchedFieldNumber = 12,
-    kSymbolizeKsymsFieldNumber = 13,
-    kInitializeKsymsSynchronouslyForTestingFieldNumber = 14,
-  };
-  using CompactSchedConfig = ::perfetto::protos::pbzero::FtraceConfig_CompactSchedConfig;
-
-  using FieldMetadata_FtraceEvents =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kRepeatedNotPacked,
-      ::protozero::proto_utils::ProtoSchemaType::kString,
-      std::string,
-      FtraceConfig>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_FtraceEvents kFtraceEvents() { return {}; }
-  void add_ftrace_events(const char* data, size_t size) {
-    AppendBytes(FieldMetadata_FtraceEvents::kFieldId, data, size);
-  }
-  void add_ftrace_events(std::string value) {
-    static constexpr uint32_t field_id = FieldMetadata_FtraceEvents::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kString>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_AtraceCategories =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kRepeatedNotPacked,
-      ::protozero::proto_utils::ProtoSchemaType::kString,
-      std::string,
-      FtraceConfig>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_AtraceCategories kAtraceCategories() { return {}; }
-  void add_atrace_categories(const char* data, size_t size) {
-    AppendBytes(FieldMetadata_AtraceCategories::kFieldId, data, size);
-  }
-  void add_atrace_categories(std::string value) {
-    static constexpr uint32_t field_id = FieldMetadata_AtraceCategories::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kString>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_AtraceApps =
-    ::protozero::proto_utils::FieldMetadata<
-      3,
-      ::protozero::proto_utils::RepetitionType::kRepeatedNotPacked,
-      ::protozero::proto_utils::ProtoSchemaType::kString,
-      std::string,
-      FtraceConfig>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_AtraceApps kAtraceApps() { return {}; }
-  void add_atrace_apps(const char* data, size_t size) {
-    AppendBytes(FieldMetadata_AtraceApps::kFieldId, data, size);
-  }
-  void add_atrace_apps(std::string value) {
-    static constexpr uint32_t field_id = FieldMetadata_AtraceApps::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kString>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_BufferSizeKb =
-    ::protozero::proto_utils::FieldMetadata<
-      10,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      FtraceConfig>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_BufferSizeKb kBufferSizeKb() { return {}; }
-  void set_buffer_size_kb(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_BufferSizeKb::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_DrainPeriodMs =
-    ::protozero::proto_utils::FieldMetadata<
-      11,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      FtraceConfig>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_DrainPeriodMs kDrainPeriodMs() { return {}; }
-  void set_drain_period_ms(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_DrainPeriodMs::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_CompactSched =
-    ::protozero::proto_utils::FieldMetadata<
-      12,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      FtraceConfig_CompactSchedConfig,
-      FtraceConfig>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_CompactSched kCompactSched() { return {}; }
-  template <typename T = FtraceConfig_CompactSchedConfig> T* set_compact_sched() {
-    return BeginNestedMessage<T>(12);
-  }
-
-
-  using FieldMetadata_SymbolizeKsyms =
-    ::protozero::proto_utils::FieldMetadata<
-      13,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kBool,
-      bool,
-      FtraceConfig>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_SymbolizeKsyms kSymbolizeKsyms() { return {}; }
-  void set_symbolize_ksyms(bool value) {
-    static constexpr uint32_t field_id = FieldMetadata_SymbolizeKsyms::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kBool>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_InitializeKsymsSynchronouslyForTesting =
-    ::protozero::proto_utils::FieldMetadata<
-      14,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kBool,
-      bool,
-      FtraceConfig>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_InitializeKsymsSynchronouslyForTesting kInitializeKsymsSynchronouslyForTesting() { return {}; }
-  void set_initialize_ksyms_synchronously_for_testing(bool value) {
-    static constexpr uint32_t field_id = FieldMetadata_InitializeKsymsSynchronouslyForTesting::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kBool>
-        ::Append(*this, field_id, value);
-  }
-};
-
-class FtraceConfig_CompactSchedConfig_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/1, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  FtraceConfig_CompactSchedConfig_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit FtraceConfig_CompactSchedConfig_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit FtraceConfig_CompactSchedConfig_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_enabled() const { return at<1>().valid(); }
-  bool enabled() const { return at<1>().as_bool(); }
-};
-
-class FtraceConfig_CompactSchedConfig : public ::protozero::Message {
- public:
-  using Decoder = FtraceConfig_CompactSchedConfig_Decoder;
-  enum : int32_t {
-    kEnabledFieldNumber = 1,
-  };
-
-  using FieldMetadata_Enabled =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kBool,
-      bool,
-      FtraceConfig_CompactSchedConfig>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Enabled kEnabled() { return {}; }
-  void set_enabled(bool value) {
-    static constexpr uint32_t field_id = FieldMetadata_Enabled::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kBool>
-        ::Append(*this, field_id, value);
-  }
-};
-
-} // Namespace.
-} // Namespace.
-} // Namespace.
-#endif  // Include guard.
-// gen_amalgamated begin header: gen/protos/perfetto/config/gpu/gpu_counter_config.pbzero.h
-// Autogenerated by the ProtoZero compiler plugin. DO NOT EDIT.
-
-#ifndef PERFETTO_PROTOS_PROTOS_PERFETTO_CONFIG_GPU_GPU_COUNTER_CONFIG_PROTO_H_
-#define PERFETTO_PROTOS_PROTOS_PERFETTO_CONFIG_GPU_GPU_COUNTER_CONFIG_PROTO_H_
-
-#include <stddef.h>
-#include <stdint.h>
-
-// gen_amalgamated expanded: #include "perfetto/protozero/field_writer.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/message.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/packed_repeated_fields.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/proto_decoder.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/proto_utils.h"
-
-namespace perfetto {
-namespace protos {
-namespace pbzero {
-
-
-class GpuCounterConfig_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/4, /*HAS_NONPACKED_REPEATED_FIELDS=*/true> {
- public:
-  GpuCounterConfig_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit GpuCounterConfig_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit GpuCounterConfig_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_counter_period_ns() const { return at<1>().valid(); }
-  uint64_t counter_period_ns() const { return at<1>().as_uint64(); }
-  bool has_counter_ids() const { return at<2>().valid(); }
-  ::protozero::RepeatedFieldIterator<uint32_t> counter_ids() const { return GetRepeated<uint32_t>(2); }
-  bool has_instrumented_sampling() const { return at<3>().valid(); }
-  bool instrumented_sampling() const { return at<3>().as_bool(); }
-  bool has_fix_gpu_clock() const { return at<4>().valid(); }
-  bool fix_gpu_clock() const { return at<4>().as_bool(); }
-};
-
-class GpuCounterConfig : public ::protozero::Message {
- public:
-  using Decoder = GpuCounterConfig_Decoder;
-  enum : int32_t {
-    kCounterPeriodNsFieldNumber = 1,
-    kCounterIdsFieldNumber = 2,
-    kInstrumentedSamplingFieldNumber = 3,
-    kFixGpuClockFieldNumber = 4,
-  };
-
-  using FieldMetadata_CounterPeriodNs =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      GpuCounterConfig>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_CounterPeriodNs kCounterPeriodNs() { return {}; }
-  void set_counter_period_ns(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_CounterPeriodNs::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_CounterIds =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kRepeatedNotPacked,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      GpuCounterConfig>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_CounterIds kCounterIds() { return {}; }
-  void add_counter_ids(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_CounterIds::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_InstrumentedSampling =
-    ::protozero::proto_utils::FieldMetadata<
-      3,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kBool,
-      bool,
-      GpuCounterConfig>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_InstrumentedSampling kInstrumentedSampling() { return {}; }
-  void set_instrumented_sampling(bool value) {
-    static constexpr uint32_t field_id = FieldMetadata_InstrumentedSampling::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kBool>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_FixGpuClock =
-    ::protozero::proto_utils::FieldMetadata<
-      4,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kBool,
-      bool,
-      GpuCounterConfig>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_FixGpuClock kFixGpuClock() { return {}; }
-  void set_fix_gpu_clock(bool value) {
-    static constexpr uint32_t field_id = FieldMetadata_FixGpuClock::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kBool>
-        ::Append(*this, field_id, value);
-  }
-};
-
-} // Namespace.
-} // Namespace.
-} // Namespace.
-#endif  // Include guard.
-// gen_amalgamated begin header: gen/protos/perfetto/config/gpu/vulkan_memory_config.pbzero.h
-// Autogenerated by the ProtoZero compiler plugin. DO NOT EDIT.
-
-#ifndef PERFETTO_PROTOS_PROTOS_PERFETTO_CONFIG_GPU_VULKAN_MEMORY_CONFIG_PROTO_H_
-#define PERFETTO_PROTOS_PROTOS_PERFETTO_CONFIG_GPU_VULKAN_MEMORY_CONFIG_PROTO_H_
-
-#include <stddef.h>
-#include <stdint.h>
-
-// gen_amalgamated expanded: #include "perfetto/protozero/field_writer.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/message.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/packed_repeated_fields.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/proto_decoder.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/proto_utils.h"
-
-namespace perfetto {
-namespace protos {
-namespace pbzero {
-
-
-class VulkanMemoryConfig_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/2, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  VulkanMemoryConfig_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit VulkanMemoryConfig_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit VulkanMemoryConfig_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_track_driver_memory_usage() const { return at<1>().valid(); }
-  bool track_driver_memory_usage() const { return at<1>().as_bool(); }
-  bool has_track_device_memory_usage() const { return at<2>().valid(); }
-  bool track_device_memory_usage() const { return at<2>().as_bool(); }
-};
-
-class VulkanMemoryConfig : public ::protozero::Message {
- public:
-  using Decoder = VulkanMemoryConfig_Decoder;
-  enum : int32_t {
-    kTrackDriverMemoryUsageFieldNumber = 1,
-    kTrackDeviceMemoryUsageFieldNumber = 2,
-  };
-
-  using FieldMetadata_TrackDriverMemoryUsage =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kBool,
-      bool,
-      VulkanMemoryConfig>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_TrackDriverMemoryUsage kTrackDriverMemoryUsage() { return {}; }
-  void set_track_driver_memory_usage(bool value) {
-    static constexpr uint32_t field_id = FieldMetadata_TrackDriverMemoryUsage::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kBool>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_TrackDeviceMemoryUsage =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kBool,
-      bool,
-      VulkanMemoryConfig>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_TrackDeviceMemoryUsage kTrackDeviceMemoryUsage() { return {}; }
-  void set_track_device_memory_usage(bool value) {
-    static constexpr uint32_t field_id = FieldMetadata_TrackDeviceMemoryUsage::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kBool>
-        ::Append(*this, field_id, value);
-  }
-};
-
-} // Namespace.
-} // Namespace.
-} // Namespace.
-#endif  // Include guard.
-// gen_amalgamated begin header: gen/protos/perfetto/config/inode_file/inode_file_config.pbzero.h
-// Autogenerated by the ProtoZero compiler plugin. DO NOT EDIT.
-
-#ifndef PERFETTO_PROTOS_PROTOS_PERFETTO_CONFIG_INODE_FILE_INODE_FILE_CONFIG_PROTO_H_
-#define PERFETTO_PROTOS_PROTOS_PERFETTO_CONFIG_INODE_FILE_INODE_FILE_CONFIG_PROTO_H_
-
-#include <stddef.h>
-#include <stdint.h>
-
-// gen_amalgamated expanded: #include "perfetto/protozero/field_writer.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/message.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/packed_repeated_fields.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/proto_decoder.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/proto_utils.h"
-
-namespace perfetto {
-namespace protos {
-namespace pbzero {
-
-class InodeFileConfig_MountPointMappingEntry;
-
-class InodeFileConfig_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/6, /*HAS_NONPACKED_REPEATED_FIELDS=*/true> {
- public:
-  InodeFileConfig_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit InodeFileConfig_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit InodeFileConfig_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_scan_interval_ms() const { return at<1>().valid(); }
-  uint32_t scan_interval_ms() const { return at<1>().as_uint32(); }
-  bool has_scan_delay_ms() const { return at<2>().valid(); }
-  uint32_t scan_delay_ms() const { return at<2>().as_uint32(); }
-  bool has_scan_batch_size() const { return at<3>().valid(); }
-  uint32_t scan_batch_size() const { return at<3>().as_uint32(); }
-  bool has_do_not_scan() const { return at<4>().valid(); }
-  bool do_not_scan() const { return at<4>().as_bool(); }
-  bool has_scan_mount_points() const { return at<5>().valid(); }
-  ::protozero::RepeatedFieldIterator<::protozero::ConstChars> scan_mount_points() const { return GetRepeated<::protozero::ConstChars>(5); }
-  bool has_mount_point_mapping() const { return at<6>().valid(); }
-  ::protozero::RepeatedFieldIterator<::protozero::ConstBytes> mount_point_mapping() const { return GetRepeated<::protozero::ConstBytes>(6); }
-};
-
-class InodeFileConfig : public ::protozero::Message {
- public:
-  using Decoder = InodeFileConfig_Decoder;
-  enum : int32_t {
-    kScanIntervalMsFieldNumber = 1,
-    kScanDelayMsFieldNumber = 2,
-    kScanBatchSizeFieldNumber = 3,
-    kDoNotScanFieldNumber = 4,
-    kScanMountPointsFieldNumber = 5,
-    kMountPointMappingFieldNumber = 6,
-  };
-  using MountPointMappingEntry = ::perfetto::protos::pbzero::InodeFileConfig_MountPointMappingEntry;
-
-  using FieldMetadata_ScanIntervalMs =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      InodeFileConfig>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_ScanIntervalMs kScanIntervalMs() { return {}; }
-  void set_scan_interval_ms(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_ScanIntervalMs::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_ScanDelayMs =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      InodeFileConfig>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_ScanDelayMs kScanDelayMs() { return {}; }
-  void set_scan_delay_ms(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_ScanDelayMs::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_ScanBatchSize =
-    ::protozero::proto_utils::FieldMetadata<
-      3,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      InodeFileConfig>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_ScanBatchSize kScanBatchSize() { return {}; }
-  void set_scan_batch_size(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_ScanBatchSize::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_DoNotScan =
-    ::protozero::proto_utils::FieldMetadata<
-      4,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kBool,
-      bool,
-      InodeFileConfig>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_DoNotScan kDoNotScan() { return {}; }
-  void set_do_not_scan(bool value) {
-    static constexpr uint32_t field_id = FieldMetadata_DoNotScan::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kBool>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_ScanMountPoints =
-    ::protozero::proto_utils::FieldMetadata<
-      5,
-      ::protozero::proto_utils::RepetitionType::kRepeatedNotPacked,
-      ::protozero::proto_utils::ProtoSchemaType::kString,
-      std::string,
-      InodeFileConfig>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_ScanMountPoints kScanMountPoints() { return {}; }
-  void add_scan_mount_points(const char* data, size_t size) {
-    AppendBytes(FieldMetadata_ScanMountPoints::kFieldId, data, size);
-  }
-  void add_scan_mount_points(std::string value) {
-    static constexpr uint32_t field_id = FieldMetadata_ScanMountPoints::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kString>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_MountPointMapping =
-    ::protozero::proto_utils::FieldMetadata<
-      6,
-      ::protozero::proto_utils::RepetitionType::kRepeatedNotPacked,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      InodeFileConfig_MountPointMappingEntry,
-      InodeFileConfig>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_MountPointMapping kMountPointMapping() { return {}; }
-  template <typename T = InodeFileConfig_MountPointMappingEntry> T* add_mount_point_mapping() {
-    return BeginNestedMessage<T>(6);
-  }
-
-};
-
-class InodeFileConfig_MountPointMappingEntry_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/2, /*HAS_NONPACKED_REPEATED_FIELDS=*/true> {
- public:
-  InodeFileConfig_MountPointMappingEntry_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit InodeFileConfig_MountPointMappingEntry_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit InodeFileConfig_MountPointMappingEntry_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_mountpoint() const { return at<1>().valid(); }
-  ::protozero::ConstChars mountpoint() const { return at<1>().as_string(); }
-  bool has_scan_roots() const { return at<2>().valid(); }
-  ::protozero::RepeatedFieldIterator<::protozero::ConstChars> scan_roots() const { return GetRepeated<::protozero::ConstChars>(2); }
-};
-
-class InodeFileConfig_MountPointMappingEntry : public ::protozero::Message {
- public:
-  using Decoder = InodeFileConfig_MountPointMappingEntry_Decoder;
-  enum : int32_t {
-    kMountpointFieldNumber = 1,
-    kScanRootsFieldNumber = 2,
-  };
-
-  using FieldMetadata_Mountpoint =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kString,
-      std::string,
-      InodeFileConfig_MountPointMappingEntry>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Mountpoint kMountpoint() { return {}; }
-  void set_mountpoint(const char* data, size_t size) {
-    AppendBytes(FieldMetadata_Mountpoint::kFieldId, data, size);
-  }
-  void set_mountpoint(std::string value) {
-    static constexpr uint32_t field_id = FieldMetadata_Mountpoint::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kString>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_ScanRoots =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kRepeatedNotPacked,
-      ::protozero::proto_utils::ProtoSchemaType::kString,
-      std::string,
-      InodeFileConfig_MountPointMappingEntry>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_ScanRoots kScanRoots() { return {}; }
-  void add_scan_roots(const char* data, size_t size) {
-    AppendBytes(FieldMetadata_ScanRoots::kFieldId, data, size);
-  }
-  void add_scan_roots(std::string value) {
-    static constexpr uint32_t field_id = FieldMetadata_ScanRoots::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kString>
-        ::Append(*this, field_id, value);
-  }
-};
-
-} // Namespace.
-} // Namespace.
-} // Namespace.
-#endif  // Include guard.
-// gen_amalgamated begin header: gen/protos/perfetto/config/interceptors/console_config.pbzero.h
-// Autogenerated by the ProtoZero compiler plugin. DO NOT EDIT.
-
-#ifndef PERFETTO_PROTOS_PROTOS_PERFETTO_CONFIG_INTERCEPTORS_CONSOLE_CONFIG_PROTO_H_
-#define PERFETTO_PROTOS_PROTOS_PERFETTO_CONFIG_INTERCEPTORS_CONSOLE_CONFIG_PROTO_H_
-
-#include <stddef.h>
-#include <stdint.h>
-
-// gen_amalgamated expanded: #include "perfetto/protozero/field_writer.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/message.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/packed_repeated_fields.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/proto_decoder.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/proto_utils.h"
-
-namespace perfetto {
-namespace protos {
-namespace pbzero {
-
-enum ConsoleConfig_Output : int32_t;
-
-enum ConsoleConfig_Output : int32_t {
-  ConsoleConfig_Output_OUTPUT_UNSPECIFIED = 0,
-  ConsoleConfig_Output_OUTPUT_STDOUT = 1,
-  ConsoleConfig_Output_OUTPUT_STDERR = 2,
-};
-
-const ConsoleConfig_Output ConsoleConfig_Output_MIN = ConsoleConfig_Output_OUTPUT_UNSPECIFIED;
-const ConsoleConfig_Output ConsoleConfig_Output_MAX = ConsoleConfig_Output_OUTPUT_STDERR;
-
-class ConsoleConfig_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/2, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  ConsoleConfig_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit ConsoleConfig_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit ConsoleConfig_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_output() const { return at<1>().valid(); }
-  int32_t output() const { return at<1>().as_int32(); }
-  bool has_enable_colors() const { return at<2>().valid(); }
-  bool enable_colors() const { return at<2>().as_bool(); }
-};
-
-class ConsoleConfig : public ::protozero::Message {
- public:
-  using Decoder = ConsoleConfig_Decoder;
-  enum : int32_t {
-    kOutputFieldNumber = 1,
-    kEnableColorsFieldNumber = 2,
-  };
-  using Output = ::perfetto::protos::pbzero::ConsoleConfig_Output;
-  static const Output OUTPUT_UNSPECIFIED = ConsoleConfig_Output_OUTPUT_UNSPECIFIED;
-  static const Output OUTPUT_STDOUT = ConsoleConfig_Output_OUTPUT_STDOUT;
-  static const Output OUTPUT_STDERR = ConsoleConfig_Output_OUTPUT_STDERR;
-
-  using FieldMetadata_Output =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kEnum,
-      ::perfetto::protos::pbzero::ConsoleConfig_Output,
-      ConsoleConfig>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Output kOutput() { return {}; }
-  void set_output(::perfetto::protos::pbzero::ConsoleConfig_Output value) {
-    static constexpr uint32_t field_id = FieldMetadata_Output::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kEnum>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_EnableColors =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kBool,
-      bool,
-      ConsoleConfig>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_EnableColors kEnableColors() { return {}; }
-  void set_enable_colors(bool value) {
-    static constexpr uint32_t field_id = FieldMetadata_EnableColors::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kBool>
-        ::Append(*this, field_id, value);
-  }
-};
-
-} // Namespace.
-} // Namespace.
-} // Namespace.
-#endif  // Include guard.
-// gen_amalgamated begin header: gen/protos/perfetto/config/power/android_power_config.pbzero.h
-// Autogenerated by the ProtoZero compiler plugin. DO NOT EDIT.
-
-#ifndef PERFETTO_PROTOS_PROTOS_PERFETTO_CONFIG_POWER_ANDROID_POWER_CONFIG_PROTO_H_
-#define PERFETTO_PROTOS_PROTOS_PERFETTO_CONFIG_POWER_ANDROID_POWER_CONFIG_PROTO_H_
-
-#include <stddef.h>
-#include <stdint.h>
-
-// gen_amalgamated expanded: #include "perfetto/protozero/field_writer.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/message.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/packed_repeated_fields.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/proto_decoder.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/proto_utils.h"
-
-namespace perfetto {
-namespace protos {
-namespace pbzero {
-
-enum AndroidPowerConfig_BatteryCounters : int32_t;
-
-enum AndroidPowerConfig_BatteryCounters : int32_t {
-  AndroidPowerConfig_BatteryCounters_BATTERY_COUNTER_UNSPECIFIED = 0,
-  AndroidPowerConfig_BatteryCounters_BATTERY_COUNTER_CHARGE = 1,
-  AndroidPowerConfig_BatteryCounters_BATTERY_COUNTER_CAPACITY_PERCENT = 2,
-  AndroidPowerConfig_BatteryCounters_BATTERY_COUNTER_CURRENT = 3,
-  AndroidPowerConfig_BatteryCounters_BATTERY_COUNTER_CURRENT_AVG = 4,
-};
-
-const AndroidPowerConfig_BatteryCounters AndroidPowerConfig_BatteryCounters_MIN = AndroidPowerConfig_BatteryCounters_BATTERY_COUNTER_UNSPECIFIED;
-const AndroidPowerConfig_BatteryCounters AndroidPowerConfig_BatteryCounters_MAX = AndroidPowerConfig_BatteryCounters_BATTERY_COUNTER_CURRENT_AVG;
-
-class AndroidPowerConfig_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/4, /*HAS_NONPACKED_REPEATED_FIELDS=*/true> {
- public:
-  AndroidPowerConfig_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit AndroidPowerConfig_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit AndroidPowerConfig_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_battery_poll_ms() const { return at<1>().valid(); }
-  uint32_t battery_poll_ms() const { return at<1>().as_uint32(); }
-  bool has_battery_counters() const { return at<2>().valid(); }
-  ::protozero::RepeatedFieldIterator<int32_t> battery_counters() const { return GetRepeated<int32_t>(2); }
-  bool has_collect_power_rails() const { return at<3>().valid(); }
-  bool collect_power_rails() const { return at<3>().as_bool(); }
-  bool has_collect_energy_estimation_breakdown() const { return at<4>().valid(); }
-  bool collect_energy_estimation_breakdown() const { return at<4>().as_bool(); }
-};
-
-class AndroidPowerConfig : public ::protozero::Message {
- public:
-  using Decoder = AndroidPowerConfig_Decoder;
-  enum : int32_t {
-    kBatteryPollMsFieldNumber = 1,
-    kBatteryCountersFieldNumber = 2,
-    kCollectPowerRailsFieldNumber = 3,
-    kCollectEnergyEstimationBreakdownFieldNumber = 4,
-  };
-  using BatteryCounters = ::perfetto::protos::pbzero::AndroidPowerConfig_BatteryCounters;
-  static const BatteryCounters BATTERY_COUNTER_UNSPECIFIED = AndroidPowerConfig_BatteryCounters_BATTERY_COUNTER_UNSPECIFIED;
-  static const BatteryCounters BATTERY_COUNTER_CHARGE = AndroidPowerConfig_BatteryCounters_BATTERY_COUNTER_CHARGE;
-  static const BatteryCounters BATTERY_COUNTER_CAPACITY_PERCENT = AndroidPowerConfig_BatteryCounters_BATTERY_COUNTER_CAPACITY_PERCENT;
-  static const BatteryCounters BATTERY_COUNTER_CURRENT = AndroidPowerConfig_BatteryCounters_BATTERY_COUNTER_CURRENT;
-  static const BatteryCounters BATTERY_COUNTER_CURRENT_AVG = AndroidPowerConfig_BatteryCounters_BATTERY_COUNTER_CURRENT_AVG;
-
-  using FieldMetadata_BatteryPollMs =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      AndroidPowerConfig>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_BatteryPollMs kBatteryPollMs() { return {}; }
-  void set_battery_poll_ms(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_BatteryPollMs::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_BatteryCounters =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kRepeatedNotPacked,
-      ::protozero::proto_utils::ProtoSchemaType::kEnum,
-      ::perfetto::protos::pbzero::AndroidPowerConfig_BatteryCounters,
-      AndroidPowerConfig>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_BatteryCounters kBatteryCounters() { return {}; }
-  void add_battery_counters(::perfetto::protos::pbzero::AndroidPowerConfig_BatteryCounters value) {
-    static constexpr uint32_t field_id = FieldMetadata_BatteryCounters::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kEnum>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_CollectPowerRails =
-    ::protozero::proto_utils::FieldMetadata<
-      3,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kBool,
-      bool,
-      AndroidPowerConfig>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_CollectPowerRails kCollectPowerRails() { return {}; }
-  void set_collect_power_rails(bool value) {
-    static constexpr uint32_t field_id = FieldMetadata_CollectPowerRails::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kBool>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_CollectEnergyEstimationBreakdown =
-    ::protozero::proto_utils::FieldMetadata<
-      4,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kBool,
-      bool,
-      AndroidPowerConfig>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_CollectEnergyEstimationBreakdown kCollectEnergyEstimationBreakdown() { return {}; }
-  void set_collect_energy_estimation_breakdown(bool value) {
-    static constexpr uint32_t field_id = FieldMetadata_CollectEnergyEstimationBreakdown::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kBool>
-        ::Append(*this, field_id, value);
-  }
-};
-
-} // Namespace.
-} // Namespace.
-} // Namespace.
-#endif  // Include guard.
-// gen_amalgamated begin header: gen/protos/perfetto/config/process_stats/process_stats_config.pbzero.h
-// Autogenerated by the ProtoZero compiler plugin. DO NOT EDIT.
-
-#ifndef PERFETTO_PROTOS_PROTOS_PERFETTO_CONFIG_PROCESS_STATS_PROCESS_STATS_CONFIG_PROTO_H_
-#define PERFETTO_PROTOS_PROTOS_PERFETTO_CONFIG_PROCESS_STATS_PROCESS_STATS_CONFIG_PROTO_H_
-
-#include <stddef.h>
-#include <stdint.h>
-
-// gen_amalgamated expanded: #include "perfetto/protozero/field_writer.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/message.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/packed_repeated_fields.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/proto_decoder.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/proto_utils.h"
-
-namespace perfetto {
-namespace protos {
-namespace pbzero {
-
-enum ProcessStatsConfig_Quirks : int32_t;
-
-enum ProcessStatsConfig_Quirks : int32_t {
-  ProcessStatsConfig_Quirks_QUIRKS_UNSPECIFIED = 0,
-  ProcessStatsConfig_Quirks_DISABLE_INITIAL_DUMP = 1,
-  ProcessStatsConfig_Quirks_DISABLE_ON_DEMAND = 2,
-};
-
-const ProcessStatsConfig_Quirks ProcessStatsConfig_Quirks_MIN = ProcessStatsConfig_Quirks_QUIRKS_UNSPECIFIED;
-const ProcessStatsConfig_Quirks ProcessStatsConfig_Quirks_MAX = ProcessStatsConfig_Quirks_DISABLE_ON_DEMAND;
-
-class ProcessStatsConfig_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/8, /*HAS_NONPACKED_REPEATED_FIELDS=*/true> {
- public:
-  ProcessStatsConfig_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit ProcessStatsConfig_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit ProcessStatsConfig_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_quirks() const { return at<1>().valid(); }
-  ::protozero::RepeatedFieldIterator<int32_t> quirks() const { return GetRepeated<int32_t>(1); }
-  bool has_scan_all_processes_on_start() const { return at<2>().valid(); }
-  bool scan_all_processes_on_start() const { return at<2>().as_bool(); }
-  bool has_record_thread_names() const { return at<3>().valid(); }
-  bool record_thread_names() const { return at<3>().as_bool(); }
-  bool has_proc_stats_poll_ms() const { return at<4>().valid(); }
-  uint32_t proc_stats_poll_ms() const { return at<4>().as_uint32(); }
-  bool has_proc_stats_cache_ttl_ms() const { return at<6>().valid(); }
-  uint32_t proc_stats_cache_ttl_ms() const { return at<6>().as_uint32(); }
-  bool has_record_thread_time_in_state() const { return at<7>().valid(); }
-  bool record_thread_time_in_state() const { return at<7>().as_bool(); }
-  bool has_thread_time_in_state_cache_size() const { return at<8>().valid(); }
-  uint32_t thread_time_in_state_cache_size() const { return at<8>().as_uint32(); }
-};
-
-class ProcessStatsConfig : public ::protozero::Message {
- public:
-  using Decoder = ProcessStatsConfig_Decoder;
-  enum : int32_t {
-    kQuirksFieldNumber = 1,
-    kScanAllProcessesOnStartFieldNumber = 2,
-    kRecordThreadNamesFieldNumber = 3,
-    kProcStatsPollMsFieldNumber = 4,
-    kProcStatsCacheTtlMsFieldNumber = 6,
-    kRecordThreadTimeInStateFieldNumber = 7,
-    kThreadTimeInStateCacheSizeFieldNumber = 8,
-  };
-  using Quirks = ::perfetto::protos::pbzero::ProcessStatsConfig_Quirks;
-  static const Quirks QUIRKS_UNSPECIFIED = ProcessStatsConfig_Quirks_QUIRKS_UNSPECIFIED;
-  static const Quirks DISABLE_INITIAL_DUMP = ProcessStatsConfig_Quirks_DISABLE_INITIAL_DUMP;
-  static const Quirks DISABLE_ON_DEMAND = ProcessStatsConfig_Quirks_DISABLE_ON_DEMAND;
-
-  using FieldMetadata_Quirks =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kRepeatedNotPacked,
-      ::protozero::proto_utils::ProtoSchemaType::kEnum,
-      ::perfetto::protos::pbzero::ProcessStatsConfig_Quirks,
-      ProcessStatsConfig>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Quirks kQuirks() { return {}; }
-  void add_quirks(::perfetto::protos::pbzero::ProcessStatsConfig_Quirks value) {
-    static constexpr uint32_t field_id = FieldMetadata_Quirks::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kEnum>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_ScanAllProcessesOnStart =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kBool,
-      bool,
-      ProcessStatsConfig>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_ScanAllProcessesOnStart kScanAllProcessesOnStart() { return {}; }
-  void set_scan_all_processes_on_start(bool value) {
-    static constexpr uint32_t field_id = FieldMetadata_ScanAllProcessesOnStart::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kBool>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_RecordThreadNames =
-    ::protozero::proto_utils::FieldMetadata<
-      3,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kBool,
-      bool,
-      ProcessStatsConfig>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_RecordThreadNames kRecordThreadNames() { return {}; }
-  void set_record_thread_names(bool value) {
-    static constexpr uint32_t field_id = FieldMetadata_RecordThreadNames::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kBool>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_ProcStatsPollMs =
-    ::protozero::proto_utils::FieldMetadata<
-      4,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      ProcessStatsConfig>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_ProcStatsPollMs kProcStatsPollMs() { return {}; }
-  void set_proc_stats_poll_ms(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_ProcStatsPollMs::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_ProcStatsCacheTtlMs =
-    ::protozero::proto_utils::FieldMetadata<
-      6,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      ProcessStatsConfig>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_ProcStatsCacheTtlMs kProcStatsCacheTtlMs() { return {}; }
-  void set_proc_stats_cache_ttl_ms(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_ProcStatsCacheTtlMs::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_RecordThreadTimeInState =
-    ::protozero::proto_utils::FieldMetadata<
-      7,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kBool,
-      bool,
-      ProcessStatsConfig>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_RecordThreadTimeInState kRecordThreadTimeInState() { return {}; }
-  void set_record_thread_time_in_state(bool value) {
-    static constexpr uint32_t field_id = FieldMetadata_RecordThreadTimeInState::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kBool>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_ThreadTimeInStateCacheSize =
-    ::protozero::proto_utils::FieldMetadata<
-      8,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      ProcessStatsConfig>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_ThreadTimeInStateCacheSize kThreadTimeInStateCacheSize() { return {}; }
-  void set_thread_time_in_state_cache_size(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_ThreadTimeInStateCacheSize::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-};
-
-} // Namespace.
-} // Namespace.
-} // Namespace.
-#endif  // Include guard.
-// gen_amalgamated begin header: gen/protos/perfetto/config/profiling/heapprofd_config.pbzero.h
-// Autogenerated by the ProtoZero compiler plugin. DO NOT EDIT.
-
-#ifndef PERFETTO_PROTOS_PROTOS_PERFETTO_CONFIG_PROFILING_HEAPPROFD_CONFIG_PROTO_H_
-#define PERFETTO_PROTOS_PROTOS_PERFETTO_CONFIG_PROFILING_HEAPPROFD_CONFIG_PROTO_H_
-
-#include <stddef.h>
-#include <stdint.h>
-
-// gen_amalgamated expanded: #include "perfetto/protozero/field_writer.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/message.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/packed_repeated_fields.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/proto_decoder.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/proto_utils.h"
-
-namespace perfetto {
-namespace protos {
-namespace pbzero {
-
-class HeapprofdConfig_ContinuousDumpConfig;
-
-class HeapprofdConfig_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/27, /*HAS_NONPACKED_REPEATED_FIELDS=*/true> {
- public:
-  HeapprofdConfig_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit HeapprofdConfig_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit HeapprofdConfig_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_sampling_interval_bytes() const { return at<1>().valid(); }
-  uint64_t sampling_interval_bytes() const { return at<1>().as_uint64(); }
-  bool has_adaptive_sampling_shmem_threshold() const { return at<24>().valid(); }
-  uint64_t adaptive_sampling_shmem_threshold() const { return at<24>().as_uint64(); }
-  bool has_adaptive_sampling_max_sampling_interval_bytes() const { return at<25>().valid(); }
-  uint64_t adaptive_sampling_max_sampling_interval_bytes() const { return at<25>().as_uint64(); }
-  bool has_process_cmdline() const { return at<2>().valid(); }
-  ::protozero::RepeatedFieldIterator<::protozero::ConstChars> process_cmdline() const { return GetRepeated<::protozero::ConstChars>(2); }
-  bool has_pid() const { return at<4>().valid(); }
-  ::protozero::RepeatedFieldIterator<uint64_t> pid() const { return GetRepeated<uint64_t>(4); }
-  bool has_target_installed_by() const { return at<26>().valid(); }
-  ::protozero::RepeatedFieldIterator<::protozero::ConstChars> target_installed_by() const { return GetRepeated<::protozero::ConstChars>(26); }
-  bool has_heaps() const { return at<20>().valid(); }
-  ::protozero::RepeatedFieldIterator<::protozero::ConstChars> heaps() const { return GetRepeated<::protozero::ConstChars>(20); }
-  bool has_exclude_heaps() const { return at<27>().valid(); }
-  ::protozero::RepeatedFieldIterator<::protozero::ConstChars> exclude_heaps() const { return GetRepeated<::protozero::ConstChars>(27); }
-  bool has_stream_allocations() const { return at<23>().valid(); }
-  bool stream_allocations() const { return at<23>().as_bool(); }
-  bool has_heap_sampling_intervals() const { return at<22>().valid(); }
-  ::protozero::RepeatedFieldIterator<uint64_t> heap_sampling_intervals() const { return GetRepeated<uint64_t>(22); }
-  bool has_all_heaps() const { return at<21>().valid(); }
-  bool all_heaps() const { return at<21>().as_bool(); }
-  bool has_all() const { return at<5>().valid(); }
-  bool all() const { return at<5>().as_bool(); }
-  bool has_min_anonymous_memory_kb() const { return at<15>().valid(); }
-  uint32_t min_anonymous_memory_kb() const { return at<15>().as_uint32(); }
-  bool has_max_heapprofd_memory_kb() const { return at<16>().valid(); }
-  uint32_t max_heapprofd_memory_kb() const { return at<16>().as_uint32(); }
-  bool has_max_heapprofd_cpu_secs() const { return at<17>().valid(); }
-  uint64_t max_heapprofd_cpu_secs() const { return at<17>().as_uint64(); }
-  bool has_skip_symbol_prefix() const { return at<7>().valid(); }
-  ::protozero::RepeatedFieldIterator<::protozero::ConstChars> skip_symbol_prefix() const { return GetRepeated<::protozero::ConstChars>(7); }
-  bool has_continuous_dump_config() const { return at<6>().valid(); }
-  ::protozero::ConstBytes continuous_dump_config() const { return at<6>().as_bytes(); }
-  bool has_shmem_size_bytes() const { return at<8>().valid(); }
-  uint64_t shmem_size_bytes() const { return at<8>().as_uint64(); }
-  bool has_block_client() const { return at<9>().valid(); }
-  bool block_client() const { return at<9>().as_bool(); }
-  bool has_block_client_timeout_us() const { return at<14>().valid(); }
-  uint32_t block_client_timeout_us() const { return at<14>().as_uint32(); }
-  bool has_no_startup() const { return at<10>().valid(); }
-  bool no_startup() const { return at<10>().as_bool(); }
-  bool has_no_running() const { return at<11>().valid(); }
-  bool no_running() const { return at<11>().as_bool(); }
-  bool has_dump_at_max() const { return at<13>().valid(); }
-  bool dump_at_max() const { return at<13>().as_bool(); }
-  bool has_disable_fork_teardown() const { return at<18>().valid(); }
-  bool disable_fork_teardown() const { return at<18>().as_bool(); }
-  bool has_disable_vfork_detection() const { return at<19>().valid(); }
-  bool disable_vfork_detection() const { return at<19>().as_bool(); }
-};
-
-class HeapprofdConfig : public ::protozero::Message {
- public:
-  using Decoder = HeapprofdConfig_Decoder;
-  enum : int32_t {
-    kSamplingIntervalBytesFieldNumber = 1,
-    kAdaptiveSamplingShmemThresholdFieldNumber = 24,
-    kAdaptiveSamplingMaxSamplingIntervalBytesFieldNumber = 25,
-    kProcessCmdlineFieldNumber = 2,
-    kPidFieldNumber = 4,
-    kTargetInstalledByFieldNumber = 26,
-    kHeapsFieldNumber = 20,
-    kExcludeHeapsFieldNumber = 27,
-    kStreamAllocationsFieldNumber = 23,
-    kHeapSamplingIntervalsFieldNumber = 22,
-    kAllHeapsFieldNumber = 21,
-    kAllFieldNumber = 5,
-    kMinAnonymousMemoryKbFieldNumber = 15,
-    kMaxHeapprofdMemoryKbFieldNumber = 16,
-    kMaxHeapprofdCpuSecsFieldNumber = 17,
-    kSkipSymbolPrefixFieldNumber = 7,
-    kContinuousDumpConfigFieldNumber = 6,
-    kShmemSizeBytesFieldNumber = 8,
-    kBlockClientFieldNumber = 9,
-    kBlockClientTimeoutUsFieldNumber = 14,
-    kNoStartupFieldNumber = 10,
-    kNoRunningFieldNumber = 11,
-    kDumpAtMaxFieldNumber = 13,
-    kDisableForkTeardownFieldNumber = 18,
-    kDisableVforkDetectionFieldNumber = 19,
-  };
-  using ContinuousDumpConfig = ::perfetto::protos::pbzero::HeapprofdConfig_ContinuousDumpConfig;
-
-  using FieldMetadata_SamplingIntervalBytes =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      HeapprofdConfig>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_SamplingIntervalBytes kSamplingIntervalBytes() { return {}; }
-  void set_sampling_interval_bytes(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_SamplingIntervalBytes::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_AdaptiveSamplingShmemThreshold =
-    ::protozero::proto_utils::FieldMetadata<
-      24,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      HeapprofdConfig>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_AdaptiveSamplingShmemThreshold kAdaptiveSamplingShmemThreshold() { return {}; }
-  void set_adaptive_sampling_shmem_threshold(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_AdaptiveSamplingShmemThreshold::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_AdaptiveSamplingMaxSamplingIntervalBytes =
-    ::protozero::proto_utils::FieldMetadata<
-      25,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      HeapprofdConfig>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_AdaptiveSamplingMaxSamplingIntervalBytes kAdaptiveSamplingMaxSamplingIntervalBytes() { return {}; }
-  void set_adaptive_sampling_max_sampling_interval_bytes(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_AdaptiveSamplingMaxSamplingIntervalBytes::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_ProcessCmdline =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kRepeatedNotPacked,
-      ::protozero::proto_utils::ProtoSchemaType::kString,
-      std::string,
-      HeapprofdConfig>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_ProcessCmdline kProcessCmdline() { return {}; }
-  void add_process_cmdline(const char* data, size_t size) {
-    AppendBytes(FieldMetadata_ProcessCmdline::kFieldId, data, size);
-  }
-  void add_process_cmdline(std::string value) {
-    static constexpr uint32_t field_id = FieldMetadata_ProcessCmdline::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kString>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Pid =
-    ::protozero::proto_utils::FieldMetadata<
-      4,
-      ::protozero::proto_utils::RepetitionType::kRepeatedNotPacked,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      HeapprofdConfig>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Pid kPid() { return {}; }
-  void add_pid(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Pid::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_TargetInstalledBy =
-    ::protozero::proto_utils::FieldMetadata<
-      26,
-      ::protozero::proto_utils::RepetitionType::kRepeatedNotPacked,
-      ::protozero::proto_utils::ProtoSchemaType::kString,
-      std::string,
-      HeapprofdConfig>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_TargetInstalledBy kTargetInstalledBy() { return {}; }
-  void add_target_installed_by(const char* data, size_t size) {
-    AppendBytes(FieldMetadata_TargetInstalledBy::kFieldId, data, size);
-  }
-  void add_target_installed_by(std::string value) {
-    static constexpr uint32_t field_id = FieldMetadata_TargetInstalledBy::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kString>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Heaps =
-    ::protozero::proto_utils::FieldMetadata<
-      20,
-      ::protozero::proto_utils::RepetitionType::kRepeatedNotPacked,
-      ::protozero::proto_utils::ProtoSchemaType::kString,
-      std::string,
-      HeapprofdConfig>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Heaps kHeaps() { return {}; }
-  void add_heaps(const char* data, size_t size) {
-    AppendBytes(FieldMetadata_Heaps::kFieldId, data, size);
-  }
-  void add_heaps(std::string value) {
-    static constexpr uint32_t field_id = FieldMetadata_Heaps::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kString>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_ExcludeHeaps =
-    ::protozero::proto_utils::FieldMetadata<
-      27,
-      ::protozero::proto_utils::RepetitionType::kRepeatedNotPacked,
-      ::protozero::proto_utils::ProtoSchemaType::kString,
-      std::string,
-      HeapprofdConfig>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_ExcludeHeaps kExcludeHeaps() { return {}; }
-  void add_exclude_heaps(const char* data, size_t size) {
-    AppendBytes(FieldMetadata_ExcludeHeaps::kFieldId, data, size);
-  }
-  void add_exclude_heaps(std::string value) {
-    static constexpr uint32_t field_id = FieldMetadata_ExcludeHeaps::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kString>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_StreamAllocations =
-    ::protozero::proto_utils::FieldMetadata<
-      23,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kBool,
-      bool,
-      HeapprofdConfig>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_StreamAllocations kStreamAllocations() { return {}; }
-  void set_stream_allocations(bool value) {
-    static constexpr uint32_t field_id = FieldMetadata_StreamAllocations::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kBool>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_HeapSamplingIntervals =
-    ::protozero::proto_utils::FieldMetadata<
-      22,
-      ::protozero::proto_utils::RepetitionType::kRepeatedNotPacked,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      HeapprofdConfig>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_HeapSamplingIntervals kHeapSamplingIntervals() { return {}; }
-  void add_heap_sampling_intervals(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_HeapSamplingIntervals::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_AllHeaps =
-    ::protozero::proto_utils::FieldMetadata<
-      21,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kBool,
-      bool,
-      HeapprofdConfig>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_AllHeaps kAllHeaps() { return {}; }
-  void set_all_heaps(bool value) {
-    static constexpr uint32_t field_id = FieldMetadata_AllHeaps::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kBool>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_All =
-    ::protozero::proto_utils::FieldMetadata<
-      5,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kBool,
-      bool,
-      HeapprofdConfig>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_All kAll() { return {}; }
-  void set_all(bool value) {
-    static constexpr uint32_t field_id = FieldMetadata_All::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kBool>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_MinAnonymousMemoryKb =
-    ::protozero::proto_utils::FieldMetadata<
-      15,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      HeapprofdConfig>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_MinAnonymousMemoryKb kMinAnonymousMemoryKb() { return {}; }
-  void set_min_anonymous_memory_kb(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_MinAnonymousMemoryKb::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_MaxHeapprofdMemoryKb =
-    ::protozero::proto_utils::FieldMetadata<
-      16,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      HeapprofdConfig>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_MaxHeapprofdMemoryKb kMaxHeapprofdMemoryKb() { return {}; }
-  void set_max_heapprofd_memory_kb(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_MaxHeapprofdMemoryKb::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_MaxHeapprofdCpuSecs =
-    ::protozero::proto_utils::FieldMetadata<
-      17,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      HeapprofdConfig>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_MaxHeapprofdCpuSecs kMaxHeapprofdCpuSecs() { return {}; }
-  void set_max_heapprofd_cpu_secs(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_MaxHeapprofdCpuSecs::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_SkipSymbolPrefix =
-    ::protozero::proto_utils::FieldMetadata<
-      7,
-      ::protozero::proto_utils::RepetitionType::kRepeatedNotPacked,
-      ::protozero::proto_utils::ProtoSchemaType::kString,
-      std::string,
-      HeapprofdConfig>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_SkipSymbolPrefix kSkipSymbolPrefix() { return {}; }
-  void add_skip_symbol_prefix(const char* data, size_t size) {
-    AppendBytes(FieldMetadata_SkipSymbolPrefix::kFieldId, data, size);
-  }
-  void add_skip_symbol_prefix(std::string value) {
-    static constexpr uint32_t field_id = FieldMetadata_SkipSymbolPrefix::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kString>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_ContinuousDumpConfig =
-    ::protozero::proto_utils::FieldMetadata<
-      6,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      HeapprofdConfig_ContinuousDumpConfig,
-      HeapprofdConfig>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_ContinuousDumpConfig kContinuousDumpConfig() { return {}; }
-  template <typename T = HeapprofdConfig_ContinuousDumpConfig> T* set_continuous_dump_config() {
-    return BeginNestedMessage<T>(6);
-  }
-
-
-  using FieldMetadata_ShmemSizeBytes =
-    ::protozero::proto_utils::FieldMetadata<
-      8,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      HeapprofdConfig>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_ShmemSizeBytes kShmemSizeBytes() { return {}; }
-  void set_shmem_size_bytes(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_ShmemSizeBytes::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_BlockClient =
-    ::protozero::proto_utils::FieldMetadata<
-      9,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kBool,
-      bool,
-      HeapprofdConfig>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_BlockClient kBlockClient() { return {}; }
-  void set_block_client(bool value) {
-    static constexpr uint32_t field_id = FieldMetadata_BlockClient::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kBool>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_BlockClientTimeoutUs =
-    ::protozero::proto_utils::FieldMetadata<
-      14,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      HeapprofdConfig>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_BlockClientTimeoutUs kBlockClientTimeoutUs() { return {}; }
-  void set_block_client_timeout_us(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_BlockClientTimeoutUs::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_NoStartup =
-    ::protozero::proto_utils::FieldMetadata<
-      10,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kBool,
-      bool,
-      HeapprofdConfig>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_NoStartup kNoStartup() { return {}; }
-  void set_no_startup(bool value) {
-    static constexpr uint32_t field_id = FieldMetadata_NoStartup::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kBool>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_NoRunning =
-    ::protozero::proto_utils::FieldMetadata<
-      11,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kBool,
-      bool,
-      HeapprofdConfig>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_NoRunning kNoRunning() { return {}; }
-  void set_no_running(bool value) {
-    static constexpr uint32_t field_id = FieldMetadata_NoRunning::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kBool>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_DumpAtMax =
-    ::protozero::proto_utils::FieldMetadata<
-      13,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kBool,
-      bool,
-      HeapprofdConfig>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_DumpAtMax kDumpAtMax() { return {}; }
-  void set_dump_at_max(bool value) {
-    static constexpr uint32_t field_id = FieldMetadata_DumpAtMax::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kBool>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_DisableForkTeardown =
-    ::protozero::proto_utils::FieldMetadata<
-      18,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kBool,
-      bool,
-      HeapprofdConfig>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_DisableForkTeardown kDisableForkTeardown() { return {}; }
-  void set_disable_fork_teardown(bool value) {
-    static constexpr uint32_t field_id = FieldMetadata_DisableForkTeardown::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kBool>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_DisableVforkDetection =
-    ::protozero::proto_utils::FieldMetadata<
-      19,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kBool,
-      bool,
-      HeapprofdConfig>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_DisableVforkDetection kDisableVforkDetection() { return {}; }
-  void set_disable_vfork_detection(bool value) {
-    static constexpr uint32_t field_id = FieldMetadata_DisableVforkDetection::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kBool>
-        ::Append(*this, field_id, value);
-  }
-};
-
-class HeapprofdConfig_ContinuousDumpConfig_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/6, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  HeapprofdConfig_ContinuousDumpConfig_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit HeapprofdConfig_ContinuousDumpConfig_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit HeapprofdConfig_ContinuousDumpConfig_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_dump_phase_ms() const { return at<5>().valid(); }
-  uint32_t dump_phase_ms() const { return at<5>().as_uint32(); }
-  bool has_dump_interval_ms() const { return at<6>().valid(); }
-  uint32_t dump_interval_ms() const { return at<6>().as_uint32(); }
-};
-
-class HeapprofdConfig_ContinuousDumpConfig : public ::protozero::Message {
- public:
-  using Decoder = HeapprofdConfig_ContinuousDumpConfig_Decoder;
-  enum : int32_t {
-    kDumpPhaseMsFieldNumber = 5,
-    kDumpIntervalMsFieldNumber = 6,
-  };
-
-  using FieldMetadata_DumpPhaseMs =
-    ::protozero::proto_utils::FieldMetadata<
-      5,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      HeapprofdConfig_ContinuousDumpConfig>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_DumpPhaseMs kDumpPhaseMs() { return {}; }
-  void set_dump_phase_ms(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_DumpPhaseMs::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_DumpIntervalMs =
-    ::protozero::proto_utils::FieldMetadata<
-      6,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      HeapprofdConfig_ContinuousDumpConfig>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_DumpIntervalMs kDumpIntervalMs() { return {}; }
-  void set_dump_interval_ms(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_DumpIntervalMs::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-};
-
-} // Namespace.
-} // Namespace.
-} // Namespace.
-#endif  // Include guard.
-// gen_amalgamated begin header: gen/protos/perfetto/config/profiling/java_hprof_config.pbzero.h
-// Autogenerated by the ProtoZero compiler plugin. DO NOT EDIT.
-
-#ifndef PERFETTO_PROTOS_PROTOS_PERFETTO_CONFIG_PROFILING_JAVA_HPROF_CONFIG_PROTO_H_
-#define PERFETTO_PROTOS_PROTOS_PERFETTO_CONFIG_PROFILING_JAVA_HPROF_CONFIG_PROTO_H_
-
-#include <stddef.h>
-#include <stdint.h>
-
-// gen_amalgamated expanded: #include "perfetto/protozero/field_writer.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/message.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/packed_repeated_fields.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/proto_decoder.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/proto_utils.h"
-
-namespace perfetto {
-namespace protos {
-namespace pbzero {
-
-class JavaHprofConfig_ContinuousDumpConfig;
-
-class JavaHprofConfig_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/7, /*HAS_NONPACKED_REPEATED_FIELDS=*/true> {
- public:
-  JavaHprofConfig_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit JavaHprofConfig_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit JavaHprofConfig_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_process_cmdline() const { return at<1>().valid(); }
-  ::protozero::RepeatedFieldIterator<::protozero::ConstChars> process_cmdline() const { return GetRepeated<::protozero::ConstChars>(1); }
-  bool has_pid() const { return at<2>().valid(); }
-  ::protozero::RepeatedFieldIterator<uint64_t> pid() const { return GetRepeated<uint64_t>(2); }
-  bool has_target_installed_by() const { return at<7>().valid(); }
-  ::protozero::RepeatedFieldIterator<::protozero::ConstChars> target_installed_by() const { return GetRepeated<::protozero::ConstChars>(7); }
-  bool has_continuous_dump_config() const { return at<3>().valid(); }
-  ::protozero::ConstBytes continuous_dump_config() const { return at<3>().as_bytes(); }
-  bool has_min_anonymous_memory_kb() const { return at<4>().valid(); }
-  uint32_t min_anonymous_memory_kb() const { return at<4>().as_uint32(); }
-  bool has_dump_smaps() const { return at<5>().valid(); }
-  bool dump_smaps() const { return at<5>().as_bool(); }
-  bool has_ignored_types() const { return at<6>().valid(); }
-  ::protozero::RepeatedFieldIterator<::protozero::ConstChars> ignored_types() const { return GetRepeated<::protozero::ConstChars>(6); }
-};
-
-class JavaHprofConfig : public ::protozero::Message {
- public:
-  using Decoder = JavaHprofConfig_Decoder;
-  enum : int32_t {
-    kProcessCmdlineFieldNumber = 1,
-    kPidFieldNumber = 2,
-    kTargetInstalledByFieldNumber = 7,
-    kContinuousDumpConfigFieldNumber = 3,
-    kMinAnonymousMemoryKbFieldNumber = 4,
-    kDumpSmapsFieldNumber = 5,
-    kIgnoredTypesFieldNumber = 6,
-  };
-  using ContinuousDumpConfig = ::perfetto::protos::pbzero::JavaHprofConfig_ContinuousDumpConfig;
-
-  using FieldMetadata_ProcessCmdline =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kRepeatedNotPacked,
-      ::protozero::proto_utils::ProtoSchemaType::kString,
-      std::string,
-      JavaHprofConfig>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_ProcessCmdline kProcessCmdline() { return {}; }
-  void add_process_cmdline(const char* data, size_t size) {
-    AppendBytes(FieldMetadata_ProcessCmdline::kFieldId, data, size);
-  }
-  void add_process_cmdline(std::string value) {
-    static constexpr uint32_t field_id = FieldMetadata_ProcessCmdline::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kString>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Pid =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kRepeatedNotPacked,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      JavaHprofConfig>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Pid kPid() { return {}; }
-  void add_pid(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Pid::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_TargetInstalledBy =
-    ::protozero::proto_utils::FieldMetadata<
-      7,
-      ::protozero::proto_utils::RepetitionType::kRepeatedNotPacked,
-      ::protozero::proto_utils::ProtoSchemaType::kString,
-      std::string,
-      JavaHprofConfig>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_TargetInstalledBy kTargetInstalledBy() { return {}; }
-  void add_target_installed_by(const char* data, size_t size) {
-    AppendBytes(FieldMetadata_TargetInstalledBy::kFieldId, data, size);
-  }
-  void add_target_installed_by(std::string value) {
-    static constexpr uint32_t field_id = FieldMetadata_TargetInstalledBy::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kString>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_ContinuousDumpConfig =
-    ::protozero::proto_utils::FieldMetadata<
-      3,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      JavaHprofConfig_ContinuousDumpConfig,
-      JavaHprofConfig>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_ContinuousDumpConfig kContinuousDumpConfig() { return {}; }
-  template <typename T = JavaHprofConfig_ContinuousDumpConfig> T* set_continuous_dump_config() {
-    return BeginNestedMessage<T>(3);
-  }
-
-
-  using FieldMetadata_MinAnonymousMemoryKb =
-    ::protozero::proto_utils::FieldMetadata<
-      4,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      JavaHprofConfig>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_MinAnonymousMemoryKb kMinAnonymousMemoryKb() { return {}; }
-  void set_min_anonymous_memory_kb(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_MinAnonymousMemoryKb::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_DumpSmaps =
-    ::protozero::proto_utils::FieldMetadata<
-      5,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kBool,
-      bool,
-      JavaHprofConfig>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_DumpSmaps kDumpSmaps() { return {}; }
-  void set_dump_smaps(bool value) {
-    static constexpr uint32_t field_id = FieldMetadata_DumpSmaps::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kBool>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_IgnoredTypes =
-    ::protozero::proto_utils::FieldMetadata<
-      6,
-      ::protozero::proto_utils::RepetitionType::kRepeatedNotPacked,
-      ::protozero::proto_utils::ProtoSchemaType::kString,
-      std::string,
-      JavaHprofConfig>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_IgnoredTypes kIgnoredTypes() { return {}; }
-  void add_ignored_types(const char* data, size_t size) {
-    AppendBytes(FieldMetadata_IgnoredTypes::kFieldId, data, size);
-  }
-  void add_ignored_types(std::string value) {
-    static constexpr uint32_t field_id = FieldMetadata_IgnoredTypes::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kString>
-        ::Append(*this, field_id, value);
-  }
-};
-
-class JavaHprofConfig_ContinuousDumpConfig_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/2, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  JavaHprofConfig_ContinuousDumpConfig_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit JavaHprofConfig_ContinuousDumpConfig_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit JavaHprofConfig_ContinuousDumpConfig_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_dump_phase_ms() const { return at<1>().valid(); }
-  uint32_t dump_phase_ms() const { return at<1>().as_uint32(); }
-  bool has_dump_interval_ms() const { return at<2>().valid(); }
-  uint32_t dump_interval_ms() const { return at<2>().as_uint32(); }
-};
-
-class JavaHprofConfig_ContinuousDumpConfig : public ::protozero::Message {
- public:
-  using Decoder = JavaHprofConfig_ContinuousDumpConfig_Decoder;
-  enum : int32_t {
-    kDumpPhaseMsFieldNumber = 1,
-    kDumpIntervalMsFieldNumber = 2,
-  };
-
-  using FieldMetadata_DumpPhaseMs =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      JavaHprofConfig_ContinuousDumpConfig>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_DumpPhaseMs kDumpPhaseMs() { return {}; }
-  void set_dump_phase_ms(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_DumpPhaseMs::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_DumpIntervalMs =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      JavaHprofConfig_ContinuousDumpConfig>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_DumpIntervalMs kDumpIntervalMs() { return {}; }
-  void set_dump_interval_ms(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_DumpIntervalMs::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-};
-
-} // Namespace.
-} // Namespace.
-} // Namespace.
-#endif  // Include guard.
-// gen_amalgamated begin header: gen/protos/perfetto/config/profiling/perf_event_config.pbzero.h
-// Autogenerated by the ProtoZero compiler plugin. DO NOT EDIT.
-
-#ifndef PERFETTO_PROTOS_PROTOS_PERFETTO_CONFIG_PROFILING_PERF_EVENT_CONFIG_PROTO_H_
-#define PERFETTO_PROTOS_PROTOS_PERFETTO_CONFIG_PROFILING_PERF_EVENT_CONFIG_PROTO_H_
-
-#include <stddef.h>
-#include <stdint.h>
-
-// gen_amalgamated expanded: #include "perfetto/protozero/field_writer.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/message.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/packed_repeated_fields.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/proto_decoder.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/proto_utils.h"
-
-namespace perfetto {
-namespace protos {
-namespace pbzero {
-
-class PerfEventConfig_CallstackSampling;
-class PerfEventConfig_Scope;
-class PerfEvents_Timebase;
-
-class PerfEventConfig_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/18, /*HAS_NONPACKED_REPEATED_FIELDS=*/true> {
- public:
-  PerfEventConfig_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit PerfEventConfig_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit PerfEventConfig_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_timebase() const { return at<15>().valid(); }
-  ::protozero::ConstBytes timebase() const { return at<15>().as_bytes(); }
-  bool has_callstack_sampling() const { return at<16>().valid(); }
-  ::protozero::ConstBytes callstack_sampling() const { return at<16>().as_bytes(); }
-  bool has_ring_buffer_read_period_ms() const { return at<8>().valid(); }
-  uint32_t ring_buffer_read_period_ms() const { return at<8>().as_uint32(); }
-  bool has_ring_buffer_pages() const { return at<3>().valid(); }
-  uint32_t ring_buffer_pages() const { return at<3>().as_uint32(); }
-  bool has_max_enqueued_footprint_kb() const { return at<17>().valid(); }
-  uint64_t max_enqueued_footprint_kb() const { return at<17>().as_uint64(); }
-  bool has_max_daemon_memory_kb() const { return at<13>().valid(); }
-  uint32_t max_daemon_memory_kb() const { return at<13>().as_uint32(); }
-  bool has_remote_descriptor_timeout_ms() const { return at<9>().valid(); }
-  uint32_t remote_descriptor_timeout_ms() const { return at<9>().as_uint32(); }
-  bool has_unwind_state_clear_period_ms() const { return at<10>().valid(); }
-  uint32_t unwind_state_clear_period_ms() const { return at<10>().as_uint32(); }
-  bool has_all_cpus() const { return at<1>().valid(); }
-  bool all_cpus() const { return at<1>().as_bool(); }
-  bool has_sampling_frequency() const { return at<2>().valid(); }
-  uint32_t sampling_frequency() const { return at<2>().as_uint32(); }
-  bool has_kernel_frames() const { return at<12>().valid(); }
-  bool kernel_frames() const { return at<12>().as_bool(); }
-  bool has_target_pid() const { return at<4>().valid(); }
-  ::protozero::RepeatedFieldIterator<int32_t> target_pid() const { return GetRepeated<int32_t>(4); }
-  bool has_target_cmdline() const { return at<5>().valid(); }
-  ::protozero::RepeatedFieldIterator<::protozero::ConstChars> target_cmdline() const { return GetRepeated<::protozero::ConstChars>(5); }
-  bool has_target_installed_by() const { return at<18>().valid(); }
-  ::protozero::RepeatedFieldIterator<::protozero::ConstChars> target_installed_by() const { return GetRepeated<::protozero::ConstChars>(18); }
-  bool has_exclude_pid() const { return at<6>().valid(); }
-  ::protozero::RepeatedFieldIterator<int32_t> exclude_pid() const { return GetRepeated<int32_t>(6); }
-  bool has_exclude_cmdline() const { return at<7>().valid(); }
-  ::protozero::RepeatedFieldIterator<::protozero::ConstChars> exclude_cmdline() const { return GetRepeated<::protozero::ConstChars>(7); }
-  bool has_additional_cmdline_count() const { return at<11>().valid(); }
-  uint32_t additional_cmdline_count() const { return at<11>().as_uint32(); }
-};
-
-class PerfEventConfig : public ::protozero::Message {
- public:
-  using Decoder = PerfEventConfig_Decoder;
-  enum : int32_t {
-    kTimebaseFieldNumber = 15,
-    kCallstackSamplingFieldNumber = 16,
-    kRingBufferReadPeriodMsFieldNumber = 8,
-    kRingBufferPagesFieldNumber = 3,
-    kMaxEnqueuedFootprintKbFieldNumber = 17,
-    kMaxDaemonMemoryKbFieldNumber = 13,
-    kRemoteDescriptorTimeoutMsFieldNumber = 9,
-    kUnwindStateClearPeriodMsFieldNumber = 10,
-    kAllCpusFieldNumber = 1,
-    kSamplingFrequencyFieldNumber = 2,
-    kKernelFramesFieldNumber = 12,
-    kTargetPidFieldNumber = 4,
-    kTargetCmdlineFieldNumber = 5,
-    kTargetInstalledByFieldNumber = 18,
-    kExcludePidFieldNumber = 6,
-    kExcludeCmdlineFieldNumber = 7,
-    kAdditionalCmdlineCountFieldNumber = 11,
-  };
-  using CallstackSampling = ::perfetto::protos::pbzero::PerfEventConfig_CallstackSampling;
-  using Scope = ::perfetto::protos::pbzero::PerfEventConfig_Scope;
-
-  using FieldMetadata_Timebase =
-    ::protozero::proto_utils::FieldMetadata<
-      15,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      PerfEvents_Timebase,
-      PerfEventConfig>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Timebase kTimebase() { return {}; }
-  template <typename T = PerfEvents_Timebase> T* set_timebase() {
-    return BeginNestedMessage<T>(15);
-  }
-
-
-  using FieldMetadata_CallstackSampling =
-    ::protozero::proto_utils::FieldMetadata<
-      16,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      PerfEventConfig_CallstackSampling,
-      PerfEventConfig>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_CallstackSampling kCallstackSampling() { return {}; }
-  template <typename T = PerfEventConfig_CallstackSampling> T* set_callstack_sampling() {
-    return BeginNestedMessage<T>(16);
-  }
-
-
-  using FieldMetadata_RingBufferReadPeriodMs =
-    ::protozero::proto_utils::FieldMetadata<
-      8,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      PerfEventConfig>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_RingBufferReadPeriodMs kRingBufferReadPeriodMs() { return {}; }
-  void set_ring_buffer_read_period_ms(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_RingBufferReadPeriodMs::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_RingBufferPages =
-    ::protozero::proto_utils::FieldMetadata<
-      3,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      PerfEventConfig>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_RingBufferPages kRingBufferPages() { return {}; }
-  void set_ring_buffer_pages(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_RingBufferPages::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_MaxEnqueuedFootprintKb =
-    ::protozero::proto_utils::FieldMetadata<
-      17,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      PerfEventConfig>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_MaxEnqueuedFootprintKb kMaxEnqueuedFootprintKb() { return {}; }
-  void set_max_enqueued_footprint_kb(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_MaxEnqueuedFootprintKb::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_MaxDaemonMemoryKb =
-    ::protozero::proto_utils::FieldMetadata<
-      13,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      PerfEventConfig>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_MaxDaemonMemoryKb kMaxDaemonMemoryKb() { return {}; }
-  void set_max_daemon_memory_kb(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_MaxDaemonMemoryKb::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_RemoteDescriptorTimeoutMs =
-    ::protozero::proto_utils::FieldMetadata<
-      9,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      PerfEventConfig>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_RemoteDescriptorTimeoutMs kRemoteDescriptorTimeoutMs() { return {}; }
-  void set_remote_descriptor_timeout_ms(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_RemoteDescriptorTimeoutMs::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_UnwindStateClearPeriodMs =
-    ::protozero::proto_utils::FieldMetadata<
-      10,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      PerfEventConfig>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_UnwindStateClearPeriodMs kUnwindStateClearPeriodMs() { return {}; }
-  void set_unwind_state_clear_period_ms(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_UnwindStateClearPeriodMs::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_AllCpus =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kBool,
-      bool,
-      PerfEventConfig>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_AllCpus kAllCpus() { return {}; }
-  void set_all_cpus(bool value) {
-    static constexpr uint32_t field_id = FieldMetadata_AllCpus::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kBool>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_SamplingFrequency =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      PerfEventConfig>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_SamplingFrequency kSamplingFrequency() { return {}; }
-  void set_sampling_frequency(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_SamplingFrequency::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_KernelFrames =
-    ::protozero::proto_utils::FieldMetadata<
-      12,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kBool,
-      bool,
-      PerfEventConfig>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_KernelFrames kKernelFrames() { return {}; }
-  void set_kernel_frames(bool value) {
-    static constexpr uint32_t field_id = FieldMetadata_KernelFrames::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kBool>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_TargetPid =
-    ::protozero::proto_utils::FieldMetadata<
-      4,
-      ::protozero::proto_utils::RepetitionType::kRepeatedNotPacked,
-      ::protozero::proto_utils::ProtoSchemaType::kInt32,
-      int32_t,
-      PerfEventConfig>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_TargetPid kTargetPid() { return {}; }
-  void add_target_pid(int32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_TargetPid::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_TargetCmdline =
-    ::protozero::proto_utils::FieldMetadata<
-      5,
-      ::protozero::proto_utils::RepetitionType::kRepeatedNotPacked,
-      ::protozero::proto_utils::ProtoSchemaType::kString,
-      std::string,
-      PerfEventConfig>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_TargetCmdline kTargetCmdline() { return {}; }
-  void add_target_cmdline(const char* data, size_t size) {
-    AppendBytes(FieldMetadata_TargetCmdline::kFieldId, data, size);
-  }
-  void add_target_cmdline(std::string value) {
-    static constexpr uint32_t field_id = FieldMetadata_TargetCmdline::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kString>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_TargetInstalledBy =
-    ::protozero::proto_utils::FieldMetadata<
-      18,
-      ::protozero::proto_utils::RepetitionType::kRepeatedNotPacked,
-      ::protozero::proto_utils::ProtoSchemaType::kString,
-      std::string,
-      PerfEventConfig>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_TargetInstalledBy kTargetInstalledBy() { return {}; }
-  void add_target_installed_by(const char* data, size_t size) {
-    AppendBytes(FieldMetadata_TargetInstalledBy::kFieldId, data, size);
-  }
-  void add_target_installed_by(std::string value) {
-    static constexpr uint32_t field_id = FieldMetadata_TargetInstalledBy::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kString>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_ExcludePid =
-    ::protozero::proto_utils::FieldMetadata<
-      6,
-      ::protozero::proto_utils::RepetitionType::kRepeatedNotPacked,
-      ::protozero::proto_utils::ProtoSchemaType::kInt32,
-      int32_t,
-      PerfEventConfig>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_ExcludePid kExcludePid() { return {}; }
-  void add_exclude_pid(int32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_ExcludePid::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_ExcludeCmdline =
-    ::protozero::proto_utils::FieldMetadata<
-      7,
-      ::protozero::proto_utils::RepetitionType::kRepeatedNotPacked,
-      ::protozero::proto_utils::ProtoSchemaType::kString,
-      std::string,
-      PerfEventConfig>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_ExcludeCmdline kExcludeCmdline() { return {}; }
-  void add_exclude_cmdline(const char* data, size_t size) {
-    AppendBytes(FieldMetadata_ExcludeCmdline::kFieldId, data, size);
-  }
-  void add_exclude_cmdline(std::string value) {
-    static constexpr uint32_t field_id = FieldMetadata_ExcludeCmdline::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kString>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_AdditionalCmdlineCount =
-    ::protozero::proto_utils::FieldMetadata<
-      11,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      PerfEventConfig>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_AdditionalCmdlineCount kAdditionalCmdlineCount() { return {}; }
-  void set_additional_cmdline_count(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_AdditionalCmdlineCount::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-};
-
-class PerfEventConfig_Scope_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/5, /*HAS_NONPACKED_REPEATED_FIELDS=*/true> {
- public:
-  PerfEventConfig_Scope_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit PerfEventConfig_Scope_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit PerfEventConfig_Scope_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_target_pid() const { return at<1>().valid(); }
-  ::protozero::RepeatedFieldIterator<int32_t> target_pid() const { return GetRepeated<int32_t>(1); }
-  bool has_target_cmdline() const { return at<2>().valid(); }
-  ::protozero::RepeatedFieldIterator<::protozero::ConstChars> target_cmdline() const { return GetRepeated<::protozero::ConstChars>(2); }
-  bool has_exclude_pid() const { return at<3>().valid(); }
-  ::protozero::RepeatedFieldIterator<int32_t> exclude_pid() const { return GetRepeated<int32_t>(3); }
-  bool has_exclude_cmdline() const { return at<4>().valid(); }
-  ::protozero::RepeatedFieldIterator<::protozero::ConstChars> exclude_cmdline() const { return GetRepeated<::protozero::ConstChars>(4); }
-  bool has_additional_cmdline_count() const { return at<5>().valid(); }
-  uint32_t additional_cmdline_count() const { return at<5>().as_uint32(); }
-};
-
-class PerfEventConfig_Scope : public ::protozero::Message {
- public:
-  using Decoder = PerfEventConfig_Scope_Decoder;
-  enum : int32_t {
-    kTargetPidFieldNumber = 1,
-    kTargetCmdlineFieldNumber = 2,
-    kExcludePidFieldNumber = 3,
-    kExcludeCmdlineFieldNumber = 4,
-    kAdditionalCmdlineCountFieldNumber = 5,
-  };
-
-  using FieldMetadata_TargetPid =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kRepeatedNotPacked,
-      ::protozero::proto_utils::ProtoSchemaType::kInt32,
-      int32_t,
-      PerfEventConfig_Scope>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_TargetPid kTargetPid() { return {}; }
-  void add_target_pid(int32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_TargetPid::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_TargetCmdline =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kRepeatedNotPacked,
-      ::protozero::proto_utils::ProtoSchemaType::kString,
-      std::string,
-      PerfEventConfig_Scope>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_TargetCmdline kTargetCmdline() { return {}; }
-  void add_target_cmdline(const char* data, size_t size) {
-    AppendBytes(FieldMetadata_TargetCmdline::kFieldId, data, size);
-  }
-  void add_target_cmdline(std::string value) {
-    static constexpr uint32_t field_id = FieldMetadata_TargetCmdline::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kString>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_ExcludePid =
-    ::protozero::proto_utils::FieldMetadata<
-      3,
-      ::protozero::proto_utils::RepetitionType::kRepeatedNotPacked,
-      ::protozero::proto_utils::ProtoSchemaType::kInt32,
-      int32_t,
-      PerfEventConfig_Scope>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_ExcludePid kExcludePid() { return {}; }
-  void add_exclude_pid(int32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_ExcludePid::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_ExcludeCmdline =
-    ::protozero::proto_utils::FieldMetadata<
-      4,
-      ::protozero::proto_utils::RepetitionType::kRepeatedNotPacked,
-      ::protozero::proto_utils::ProtoSchemaType::kString,
-      std::string,
-      PerfEventConfig_Scope>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_ExcludeCmdline kExcludeCmdline() { return {}; }
-  void add_exclude_cmdline(const char* data, size_t size) {
-    AppendBytes(FieldMetadata_ExcludeCmdline::kFieldId, data, size);
-  }
-  void add_exclude_cmdline(std::string value) {
-    static constexpr uint32_t field_id = FieldMetadata_ExcludeCmdline::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kString>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_AdditionalCmdlineCount =
-    ::protozero::proto_utils::FieldMetadata<
-      5,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      PerfEventConfig_Scope>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_AdditionalCmdlineCount kAdditionalCmdlineCount() { return {}; }
-  void set_additional_cmdline_count(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_AdditionalCmdlineCount::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-};
-
-class PerfEventConfig_CallstackSampling_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/2, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  PerfEventConfig_CallstackSampling_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit PerfEventConfig_CallstackSampling_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit PerfEventConfig_CallstackSampling_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_scope() const { return at<1>().valid(); }
-  ::protozero::ConstBytes scope() const { return at<1>().as_bytes(); }
-  bool has_kernel_frames() const { return at<2>().valid(); }
-  bool kernel_frames() const { return at<2>().as_bool(); }
-};
-
-class PerfEventConfig_CallstackSampling : public ::protozero::Message {
- public:
-  using Decoder = PerfEventConfig_CallstackSampling_Decoder;
-  enum : int32_t {
-    kScopeFieldNumber = 1,
-    kKernelFramesFieldNumber = 2,
-  };
-
-  using FieldMetadata_Scope =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      PerfEventConfig_Scope,
-      PerfEventConfig_CallstackSampling>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Scope kScope() { return {}; }
-  template <typename T = PerfEventConfig_Scope> T* set_scope() {
-    return BeginNestedMessage<T>(1);
-  }
-
-
-  using FieldMetadata_KernelFrames =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kBool,
-      bool,
-      PerfEventConfig_CallstackSampling>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_KernelFrames kKernelFrames() { return {}; }
-  void set_kernel_frames(bool value) {
-    static constexpr uint32_t field_id = FieldMetadata_KernelFrames::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kBool>
-        ::Append(*this, field_id, value);
-  }
-};
-
-} // Namespace.
-} // Namespace.
-} // Namespace.
-#endif  // Include guard.
-// gen_amalgamated begin header: gen/protos/perfetto/config/sys_stats/sys_stats_config.pbzero.h
-// Autogenerated by the ProtoZero compiler plugin. DO NOT EDIT.
-
-#ifndef PERFETTO_PROTOS_PROTOS_PERFETTO_CONFIG_SYS_STATS_SYS_STATS_CONFIG_PROTO_H_
-#define PERFETTO_PROTOS_PROTOS_PERFETTO_CONFIG_SYS_STATS_SYS_STATS_CONFIG_PROTO_H_
-
-#include <stddef.h>
-#include <stdint.h>
-
-// gen_amalgamated expanded: #include "perfetto/protozero/field_writer.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/message.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/packed_repeated_fields.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/proto_decoder.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/proto_utils.h"
-
-namespace perfetto {
-namespace protos {
-namespace pbzero {
-
-enum MeminfoCounters : int32_t;
-enum SysStatsConfig_StatCounters : int32_t;
-enum VmstatCounters : int32_t;
-
-enum SysStatsConfig_StatCounters : int32_t {
-  SysStatsConfig_StatCounters_STAT_UNSPECIFIED = 0,
-  SysStatsConfig_StatCounters_STAT_CPU_TIMES = 1,
-  SysStatsConfig_StatCounters_STAT_IRQ_COUNTS = 2,
-  SysStatsConfig_StatCounters_STAT_SOFTIRQ_COUNTS = 3,
-  SysStatsConfig_StatCounters_STAT_FORK_COUNT = 4,
-};
-
-const SysStatsConfig_StatCounters SysStatsConfig_StatCounters_MIN = SysStatsConfig_StatCounters_STAT_UNSPECIFIED;
-const SysStatsConfig_StatCounters SysStatsConfig_StatCounters_MAX = SysStatsConfig_StatCounters_STAT_FORK_COUNT;
-
-class SysStatsConfig_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/7, /*HAS_NONPACKED_REPEATED_FIELDS=*/true> {
- public:
-  SysStatsConfig_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit SysStatsConfig_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit SysStatsConfig_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_meminfo_period_ms() const { return at<1>().valid(); }
-  uint32_t meminfo_period_ms() const { return at<1>().as_uint32(); }
-  bool has_meminfo_counters() const { return at<2>().valid(); }
-  ::protozero::RepeatedFieldIterator<int32_t> meminfo_counters() const { return GetRepeated<int32_t>(2); }
-  bool has_vmstat_period_ms() const { return at<3>().valid(); }
-  uint32_t vmstat_period_ms() const { return at<3>().as_uint32(); }
-  bool has_vmstat_counters() const { return at<4>().valid(); }
-  ::protozero::RepeatedFieldIterator<int32_t> vmstat_counters() const { return GetRepeated<int32_t>(4); }
-  bool has_stat_period_ms() const { return at<5>().valid(); }
-  uint32_t stat_period_ms() const { return at<5>().as_uint32(); }
-  bool has_stat_counters() const { return at<6>().valid(); }
-  ::protozero::RepeatedFieldIterator<int32_t> stat_counters() const { return GetRepeated<int32_t>(6); }
-  bool has_devfreq_period_ms() const { return at<7>().valid(); }
-  uint32_t devfreq_period_ms() const { return at<7>().as_uint32(); }
-};
-
-class SysStatsConfig : public ::protozero::Message {
- public:
-  using Decoder = SysStatsConfig_Decoder;
-  enum : int32_t {
-    kMeminfoPeriodMsFieldNumber = 1,
-    kMeminfoCountersFieldNumber = 2,
-    kVmstatPeriodMsFieldNumber = 3,
-    kVmstatCountersFieldNumber = 4,
-    kStatPeriodMsFieldNumber = 5,
-    kStatCountersFieldNumber = 6,
-    kDevfreqPeriodMsFieldNumber = 7,
-  };
-  using StatCounters = ::perfetto::protos::pbzero::SysStatsConfig_StatCounters;
-  static const StatCounters STAT_UNSPECIFIED = SysStatsConfig_StatCounters_STAT_UNSPECIFIED;
-  static const StatCounters STAT_CPU_TIMES = SysStatsConfig_StatCounters_STAT_CPU_TIMES;
-  static const StatCounters STAT_IRQ_COUNTS = SysStatsConfig_StatCounters_STAT_IRQ_COUNTS;
-  static const StatCounters STAT_SOFTIRQ_COUNTS = SysStatsConfig_StatCounters_STAT_SOFTIRQ_COUNTS;
-  static const StatCounters STAT_FORK_COUNT = SysStatsConfig_StatCounters_STAT_FORK_COUNT;
-
-  using FieldMetadata_MeminfoPeriodMs =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      SysStatsConfig>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_MeminfoPeriodMs kMeminfoPeriodMs() { return {}; }
-  void set_meminfo_period_ms(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_MeminfoPeriodMs::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_MeminfoCounters =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kRepeatedNotPacked,
-      ::protozero::proto_utils::ProtoSchemaType::kEnum,
-      ::perfetto::protos::pbzero::MeminfoCounters,
-      SysStatsConfig>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_MeminfoCounters kMeminfoCounters() { return {}; }
-  void add_meminfo_counters(::perfetto::protos::pbzero::MeminfoCounters value) {
-    static constexpr uint32_t field_id = FieldMetadata_MeminfoCounters::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kEnum>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_VmstatPeriodMs =
-    ::protozero::proto_utils::FieldMetadata<
-      3,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      SysStatsConfig>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_VmstatPeriodMs kVmstatPeriodMs() { return {}; }
-  void set_vmstat_period_ms(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_VmstatPeriodMs::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_VmstatCounters =
-    ::protozero::proto_utils::FieldMetadata<
-      4,
-      ::protozero::proto_utils::RepetitionType::kRepeatedNotPacked,
-      ::protozero::proto_utils::ProtoSchemaType::kEnum,
-      ::perfetto::protos::pbzero::VmstatCounters,
-      SysStatsConfig>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_VmstatCounters kVmstatCounters() { return {}; }
-  void add_vmstat_counters(::perfetto::protos::pbzero::VmstatCounters value) {
-    static constexpr uint32_t field_id = FieldMetadata_VmstatCounters::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kEnum>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_StatPeriodMs =
-    ::protozero::proto_utils::FieldMetadata<
-      5,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      SysStatsConfig>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_StatPeriodMs kStatPeriodMs() { return {}; }
-  void set_stat_period_ms(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_StatPeriodMs::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_StatCounters =
-    ::protozero::proto_utils::FieldMetadata<
-      6,
-      ::protozero::proto_utils::RepetitionType::kRepeatedNotPacked,
-      ::protozero::proto_utils::ProtoSchemaType::kEnum,
-      ::perfetto::protos::pbzero::SysStatsConfig_StatCounters,
-      SysStatsConfig>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_StatCounters kStatCounters() { return {}; }
-  void add_stat_counters(::perfetto::protos::pbzero::SysStatsConfig_StatCounters value) {
-    static constexpr uint32_t field_id = FieldMetadata_StatCounters::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kEnum>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_DevfreqPeriodMs =
-    ::protozero::proto_utils::FieldMetadata<
-      7,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      SysStatsConfig>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_DevfreqPeriodMs kDevfreqPeriodMs() { return {}; }
-  void set_devfreq_period_ms(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_DevfreqPeriodMs::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-};
-
-} // Namespace.
-} // Namespace.
-} // Namespace.
-#endif  // Include guard.
-// gen_amalgamated begin header: gen/protos/perfetto/config/track_event/track_event_config.pbzero.h
-// Autogenerated by the ProtoZero compiler plugin. DO NOT EDIT.
-
-#ifndef PERFETTO_PROTOS_PROTOS_PERFETTO_CONFIG_TRACK_EVENT_TRACK_EVENT_CONFIG_PROTO_H_
-#define PERFETTO_PROTOS_PROTOS_PERFETTO_CONFIG_TRACK_EVENT_TRACK_EVENT_CONFIG_PROTO_H_
-
-#include <stddef.h>
-#include <stdint.h>
-
-// gen_amalgamated expanded: #include "perfetto/protozero/field_writer.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/message.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/packed_repeated_fields.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/proto_decoder.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/proto_utils.h"
-
-namespace perfetto {
-namespace protos {
-namespace pbzero {
-
-
-class TrackEventConfig_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/4, /*HAS_NONPACKED_REPEATED_FIELDS=*/true> {
- public:
-  TrackEventConfig_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit TrackEventConfig_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit TrackEventConfig_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_disabled_categories() const { return at<1>().valid(); }
-  ::protozero::RepeatedFieldIterator<::protozero::ConstChars> disabled_categories() const { return GetRepeated<::protozero::ConstChars>(1); }
-  bool has_enabled_categories() const { return at<2>().valid(); }
-  ::protozero::RepeatedFieldIterator<::protozero::ConstChars> enabled_categories() const { return GetRepeated<::protozero::ConstChars>(2); }
-  bool has_disabled_tags() const { return at<3>().valid(); }
-  ::protozero::RepeatedFieldIterator<::protozero::ConstChars> disabled_tags() const { return GetRepeated<::protozero::ConstChars>(3); }
-  bool has_enabled_tags() const { return at<4>().valid(); }
-  ::protozero::RepeatedFieldIterator<::protozero::ConstChars> enabled_tags() const { return GetRepeated<::protozero::ConstChars>(4); }
-};
-
-class TrackEventConfig : public ::protozero::Message {
- public:
-  using Decoder = TrackEventConfig_Decoder;
-  enum : int32_t {
-    kDisabledCategoriesFieldNumber = 1,
-    kEnabledCategoriesFieldNumber = 2,
-    kDisabledTagsFieldNumber = 3,
-    kEnabledTagsFieldNumber = 4,
-  };
-
-  using FieldMetadata_DisabledCategories =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kRepeatedNotPacked,
-      ::protozero::proto_utils::ProtoSchemaType::kString,
-      std::string,
-      TrackEventConfig>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_DisabledCategories kDisabledCategories() { return {}; }
-  void add_disabled_categories(const char* data, size_t size) {
-    AppendBytes(FieldMetadata_DisabledCategories::kFieldId, data, size);
-  }
-  void add_disabled_categories(std::string value) {
-    static constexpr uint32_t field_id = FieldMetadata_DisabledCategories::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kString>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_EnabledCategories =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kRepeatedNotPacked,
-      ::protozero::proto_utils::ProtoSchemaType::kString,
-      std::string,
-      TrackEventConfig>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_EnabledCategories kEnabledCategories() { return {}; }
-  void add_enabled_categories(const char* data, size_t size) {
-    AppendBytes(FieldMetadata_EnabledCategories::kFieldId, data, size);
-  }
-  void add_enabled_categories(std::string value) {
-    static constexpr uint32_t field_id = FieldMetadata_EnabledCategories::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kString>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_DisabledTags =
-    ::protozero::proto_utils::FieldMetadata<
-      3,
-      ::protozero::proto_utils::RepetitionType::kRepeatedNotPacked,
-      ::protozero::proto_utils::ProtoSchemaType::kString,
-      std::string,
-      TrackEventConfig>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_DisabledTags kDisabledTags() { return {}; }
-  void add_disabled_tags(const char* data, size_t size) {
-    AppendBytes(FieldMetadata_DisabledTags::kFieldId, data, size);
-  }
-  void add_disabled_tags(std::string value) {
-    static constexpr uint32_t field_id = FieldMetadata_DisabledTags::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kString>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_EnabledTags =
-    ::protozero::proto_utils::FieldMetadata<
-      4,
-      ::protozero::proto_utils::RepetitionType::kRepeatedNotPacked,
-      ::protozero::proto_utils::ProtoSchemaType::kString,
-      std::string,
-      TrackEventConfig>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_EnabledTags kEnabledTags() { return {}; }
-  void add_enabled_tags(const char* data, size_t size) {
-    AppendBytes(FieldMetadata_EnabledTags::kFieldId, data, size);
-  }
-  void add_enabled_tags(std::string value) {
-    static constexpr uint32_t field_id = FieldMetadata_EnabledTags::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kString>
-        ::Append(*this, field_id, value);
-  }
-};
-
-} // Namespace.
-} // Namespace.
-} // Namespace.
-#endif  // Include guard.
-// gen_amalgamated begin header: gen/protos/perfetto/config/chrome/chrome_config.pbzero.h
-// Autogenerated by the ProtoZero compiler plugin. DO NOT EDIT.
-
-#ifndef PERFETTO_PROTOS_PROTOS_PERFETTO_CONFIG_CHROME_CHROME_CONFIG_PROTO_H_
-#define PERFETTO_PROTOS_PROTOS_PERFETTO_CONFIG_CHROME_CHROME_CONFIG_PROTO_H_
-
-#include <stddef.h>
-#include <stdint.h>
-
-// gen_amalgamated expanded: #include "perfetto/protozero/field_writer.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/message.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/packed_repeated_fields.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/proto_decoder.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/proto_utils.h"
-
-namespace perfetto {
-namespace protos {
-namespace pbzero {
-
-enum ChromeConfig_ClientPriority : int32_t;
-
-enum ChromeConfig_ClientPriority : int32_t {
-  ChromeConfig_ClientPriority_UNKNOWN = 0,
-  ChromeConfig_ClientPriority_BACKGROUND = 1,
-  ChromeConfig_ClientPriority_USER_INITIATED = 2,
-};
-
-const ChromeConfig_ClientPriority ChromeConfig_ClientPriority_MIN = ChromeConfig_ClientPriority_UNKNOWN;
-const ChromeConfig_ClientPriority ChromeConfig_ClientPriority_MAX = ChromeConfig_ClientPriority_USER_INITIATED;
-
-class ChromeConfig_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/5, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  ChromeConfig_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit ChromeConfig_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit ChromeConfig_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_trace_config() const { return at<1>().valid(); }
-  ::protozero::ConstChars trace_config() const { return at<1>().as_string(); }
-  bool has_privacy_filtering_enabled() const { return at<2>().valid(); }
-  bool privacy_filtering_enabled() const { return at<2>().as_bool(); }
-  bool has_convert_to_legacy_json() const { return at<3>().valid(); }
-  bool convert_to_legacy_json() const { return at<3>().as_bool(); }
-  bool has_client_priority() const { return at<4>().valid(); }
-  int32_t client_priority() const { return at<4>().as_int32(); }
-  bool has_json_agent_label_filter() const { return at<5>().valid(); }
-  ::protozero::ConstChars json_agent_label_filter() const { return at<5>().as_string(); }
-};
-
-class ChromeConfig : public ::protozero::Message {
- public:
-  using Decoder = ChromeConfig_Decoder;
-  enum : int32_t {
-    kTraceConfigFieldNumber = 1,
-    kPrivacyFilteringEnabledFieldNumber = 2,
-    kConvertToLegacyJsonFieldNumber = 3,
-    kClientPriorityFieldNumber = 4,
-    kJsonAgentLabelFilterFieldNumber = 5,
-  };
-  using ClientPriority = ::perfetto::protos::pbzero::ChromeConfig_ClientPriority;
-  static const ClientPriority UNKNOWN = ChromeConfig_ClientPriority_UNKNOWN;
-  static const ClientPriority BACKGROUND = ChromeConfig_ClientPriority_BACKGROUND;
-  static const ClientPriority USER_INITIATED = ChromeConfig_ClientPriority_USER_INITIATED;
-
-  using FieldMetadata_TraceConfig =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kString,
-      std::string,
-      ChromeConfig>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_TraceConfig kTraceConfig() { return {}; }
-  void set_trace_config(const char* data, size_t size) {
-    AppendBytes(FieldMetadata_TraceConfig::kFieldId, data, size);
-  }
-  void set_trace_config(std::string value) {
-    static constexpr uint32_t field_id = FieldMetadata_TraceConfig::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kString>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_PrivacyFilteringEnabled =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kBool,
-      bool,
-      ChromeConfig>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_PrivacyFilteringEnabled kPrivacyFilteringEnabled() { return {}; }
-  void set_privacy_filtering_enabled(bool value) {
-    static constexpr uint32_t field_id = FieldMetadata_PrivacyFilteringEnabled::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kBool>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_ConvertToLegacyJson =
-    ::protozero::proto_utils::FieldMetadata<
-      3,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kBool,
-      bool,
-      ChromeConfig>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_ConvertToLegacyJson kConvertToLegacyJson() { return {}; }
-  void set_convert_to_legacy_json(bool value) {
-    static constexpr uint32_t field_id = FieldMetadata_ConvertToLegacyJson::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kBool>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_ClientPriority =
-    ::protozero::proto_utils::FieldMetadata<
-      4,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kEnum,
-      ::perfetto::protos::pbzero::ChromeConfig_ClientPriority,
-      ChromeConfig>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_ClientPriority kClientPriority() { return {}; }
-  void set_client_priority(::perfetto::protos::pbzero::ChromeConfig_ClientPriority value) {
-    static constexpr uint32_t field_id = FieldMetadata_ClientPriority::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kEnum>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_JsonAgentLabelFilter =
-    ::protozero::proto_utils::FieldMetadata<
-      5,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kString,
-      std::string,
-      ChromeConfig>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_JsonAgentLabelFilter kJsonAgentLabelFilter() { return {}; }
-  void set_json_agent_label_filter(const char* data, size_t size) {
-    AppendBytes(FieldMetadata_JsonAgentLabelFilter::kFieldId, data, size);
-  }
-  void set_json_agent_label_filter(std::string value) {
-    static constexpr uint32_t field_id = FieldMetadata_JsonAgentLabelFilter::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kString>
-        ::Append(*this, field_id, value);
-  }
-};
-
-} // Namespace.
-} // Namespace.
-} // Namespace.
-#endif  // Include guard.
-// gen_amalgamated begin header: gen/protos/perfetto/config/data_source_config.pbzero.h
-// Autogenerated by the ProtoZero compiler plugin. DO NOT EDIT.
-
-#ifndef PERFETTO_PROTOS_PROTOS_PERFETTO_CONFIG_DATA_SOURCE_CONFIG_PROTO_H_
-#define PERFETTO_PROTOS_PROTOS_PERFETTO_CONFIG_DATA_SOURCE_CONFIG_PROTO_H_
-
-#include <stddef.h>
-#include <stdint.h>
-
-// gen_amalgamated expanded: #include "perfetto/protozero/field_writer.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/message.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/packed_repeated_fields.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/proto_decoder.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/proto_utils.h"
-
-namespace perfetto {
-namespace protos {
-namespace pbzero {
-
-class AndroidLogConfig;
-class AndroidPolledStateConfig;
-class AndroidPowerConfig;
-class ChromeConfig;
-class FtraceConfig;
-class GpuCounterConfig;
-class HeapprofdConfig;
-class InodeFileConfig;
-class InterceptorConfig;
-class JavaHprofConfig;
-class PackagesListConfig;
-class PerfEventConfig;
-class ProcessStatsConfig;
-class SysStatsConfig;
-class TestConfig;
-class TrackEventConfig;
-class VulkanMemoryConfig;
-enum DataSourceConfig_SessionInitiator : int32_t;
-
-enum DataSourceConfig_SessionInitiator : int32_t {
-  DataSourceConfig_SessionInitiator_SESSION_INITIATOR_UNSPECIFIED = 0,
-  DataSourceConfig_SessionInitiator_SESSION_INITIATOR_TRUSTED_SYSTEM = 1,
-};
-
-const DataSourceConfig_SessionInitiator DataSourceConfig_SessionInitiator_MIN = DataSourceConfig_SessionInitiator_SESSION_INITIATOR_UNSPECIFIED;
-const DataSourceConfig_SessionInitiator DataSourceConfig_SessionInitiator_MAX = DataSourceConfig_SessionInitiator_SESSION_INITIATOR_TRUSTED_SYSTEM;
-
-class DataSourceConfig_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/115, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  DataSourceConfig_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit DataSourceConfig_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit DataSourceConfig_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_name() const { return at<1>().valid(); }
-  ::protozero::ConstChars name() const { return at<1>().as_string(); }
-  bool has_target_buffer() const { return at<2>().valid(); }
-  uint32_t target_buffer() const { return at<2>().as_uint32(); }
-  bool has_trace_duration_ms() const { return at<3>().valid(); }
-  uint32_t trace_duration_ms() const { return at<3>().as_uint32(); }
-  bool has_stop_timeout_ms() const { return at<7>().valid(); }
-  uint32_t stop_timeout_ms() const { return at<7>().as_uint32(); }
-  bool has_enable_extra_guardrails() const { return at<6>().valid(); }
-  bool enable_extra_guardrails() const { return at<6>().as_bool(); }
-  bool has_session_initiator() const { return at<8>().valid(); }
-  int32_t session_initiator() const { return at<8>().as_int32(); }
-  bool has_tracing_session_id() const { return at<4>().valid(); }
-  uint64_t tracing_session_id() const { return at<4>().as_uint64(); }
-  bool has_ftrace_config() const { return at<100>().valid(); }
-  ::protozero::ConstBytes ftrace_config() const { return at<100>().as_bytes(); }
-  bool has_inode_file_config() const { return at<102>().valid(); }
-  ::protozero::ConstBytes inode_file_config() const { return at<102>().as_bytes(); }
-  bool has_process_stats_config() const { return at<103>().valid(); }
-  ::protozero::ConstBytes process_stats_config() const { return at<103>().as_bytes(); }
-  bool has_sys_stats_config() const { return at<104>().valid(); }
-  ::protozero::ConstBytes sys_stats_config() const { return at<104>().as_bytes(); }
-  bool has_heapprofd_config() const { return at<105>().valid(); }
-  ::protozero::ConstBytes heapprofd_config() const { return at<105>().as_bytes(); }
-  bool has_java_hprof_config() const { return at<110>().valid(); }
-  ::protozero::ConstBytes java_hprof_config() const { return at<110>().as_bytes(); }
-  bool has_android_power_config() const { return at<106>().valid(); }
-  ::protozero::ConstBytes android_power_config() const { return at<106>().as_bytes(); }
-  bool has_android_log_config() const { return at<107>().valid(); }
-  ::protozero::ConstBytes android_log_config() const { return at<107>().as_bytes(); }
-  bool has_gpu_counter_config() const { return at<108>().valid(); }
-  ::protozero::ConstBytes gpu_counter_config() const { return at<108>().as_bytes(); }
-  bool has_packages_list_config() const { return at<109>().valid(); }
-  ::protozero::ConstBytes packages_list_config() const { return at<109>().as_bytes(); }
-  bool has_perf_event_config() const { return at<111>().valid(); }
-  ::protozero::ConstBytes perf_event_config() const { return at<111>().as_bytes(); }
-  bool has_vulkan_memory_config() const { return at<112>().valid(); }
-  ::protozero::ConstBytes vulkan_memory_config() const { return at<112>().as_bytes(); }
-  bool has_track_event_config() const { return at<113>().valid(); }
-  ::protozero::ConstBytes track_event_config() const { return at<113>().as_bytes(); }
-  bool has_android_polled_state_config() const { return at<114>().valid(); }
-  ::protozero::ConstBytes android_polled_state_config() const { return at<114>().as_bytes(); }
-  bool has_chrome_config() const { return at<101>().valid(); }
-  ::protozero::ConstBytes chrome_config() const { return at<101>().as_bytes(); }
-  bool has_interceptor_config() const { return at<115>().valid(); }
-  ::protozero::ConstBytes interceptor_config() const { return at<115>().as_bytes(); }
-  // field legacy_config omitted because its id is too high
-  // field for_testing omitted because its id is too high
-};
-
-class DataSourceConfig : public ::protozero::Message {
- public:
-  using Decoder = DataSourceConfig_Decoder;
-  enum : int32_t {
-    kNameFieldNumber = 1,
-    kTargetBufferFieldNumber = 2,
-    kTraceDurationMsFieldNumber = 3,
-    kStopTimeoutMsFieldNumber = 7,
-    kEnableExtraGuardrailsFieldNumber = 6,
-    kSessionInitiatorFieldNumber = 8,
-    kTracingSessionIdFieldNumber = 4,
-    kFtraceConfigFieldNumber = 100,
-    kInodeFileConfigFieldNumber = 102,
-    kProcessStatsConfigFieldNumber = 103,
-    kSysStatsConfigFieldNumber = 104,
-    kHeapprofdConfigFieldNumber = 105,
-    kJavaHprofConfigFieldNumber = 110,
-    kAndroidPowerConfigFieldNumber = 106,
-    kAndroidLogConfigFieldNumber = 107,
-    kGpuCounterConfigFieldNumber = 108,
-    kPackagesListConfigFieldNumber = 109,
-    kPerfEventConfigFieldNumber = 111,
-    kVulkanMemoryConfigFieldNumber = 112,
-    kTrackEventConfigFieldNumber = 113,
-    kAndroidPolledStateConfigFieldNumber = 114,
-    kChromeConfigFieldNumber = 101,
-    kInterceptorConfigFieldNumber = 115,
-    kLegacyConfigFieldNumber = 1000,
-    kForTestingFieldNumber = 1001,
-  };
-  using SessionInitiator = ::perfetto::protos::pbzero::DataSourceConfig_SessionInitiator;
-  static const SessionInitiator SESSION_INITIATOR_UNSPECIFIED = DataSourceConfig_SessionInitiator_SESSION_INITIATOR_UNSPECIFIED;
-  static const SessionInitiator SESSION_INITIATOR_TRUSTED_SYSTEM = DataSourceConfig_SessionInitiator_SESSION_INITIATOR_TRUSTED_SYSTEM;
-
-  using FieldMetadata_Name =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kString,
-      std::string,
-      DataSourceConfig>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Name kName() { return {}; }
-  void set_name(const char* data, size_t size) {
-    AppendBytes(FieldMetadata_Name::kFieldId, data, size);
-  }
-  void set_name(std::string value) {
-    static constexpr uint32_t field_id = FieldMetadata_Name::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kString>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_TargetBuffer =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      DataSourceConfig>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_TargetBuffer kTargetBuffer() { return {}; }
-  void set_target_buffer(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_TargetBuffer::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_TraceDurationMs =
-    ::protozero::proto_utils::FieldMetadata<
-      3,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      DataSourceConfig>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_TraceDurationMs kTraceDurationMs() { return {}; }
-  void set_trace_duration_ms(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_TraceDurationMs::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_StopTimeoutMs =
-    ::protozero::proto_utils::FieldMetadata<
-      7,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      DataSourceConfig>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_StopTimeoutMs kStopTimeoutMs() { return {}; }
-  void set_stop_timeout_ms(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_StopTimeoutMs::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_EnableExtraGuardrails =
-    ::protozero::proto_utils::FieldMetadata<
-      6,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kBool,
-      bool,
-      DataSourceConfig>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_EnableExtraGuardrails kEnableExtraGuardrails() { return {}; }
-  void set_enable_extra_guardrails(bool value) {
-    static constexpr uint32_t field_id = FieldMetadata_EnableExtraGuardrails::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kBool>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_SessionInitiator =
-    ::protozero::proto_utils::FieldMetadata<
-      8,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kEnum,
-      ::perfetto::protos::pbzero::DataSourceConfig_SessionInitiator,
-      DataSourceConfig>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_SessionInitiator kSessionInitiator() { return {}; }
-  void set_session_initiator(::perfetto::protos::pbzero::DataSourceConfig_SessionInitiator value) {
-    static constexpr uint32_t field_id = FieldMetadata_SessionInitiator::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kEnum>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_TracingSessionId =
-    ::protozero::proto_utils::FieldMetadata<
-      4,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      DataSourceConfig>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_TracingSessionId kTracingSessionId() { return {}; }
-  void set_tracing_session_id(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_TracingSessionId::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_FtraceConfig =
-    ::protozero::proto_utils::FieldMetadata<
-      100,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      FtraceConfig,
-      DataSourceConfig>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_FtraceConfig kFtraceConfig() { return {}; }
-  template <typename T = FtraceConfig> T* set_ftrace_config() {
-    return BeginNestedMessage<T>(100);
-  }
-
-  void set_ftrace_config_raw(const std::string& raw) {
-    return AppendBytes(100, raw.data(), raw.size());
-  }
-
-
-  using FieldMetadata_InodeFileConfig =
-    ::protozero::proto_utils::FieldMetadata<
-      102,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      InodeFileConfig,
-      DataSourceConfig>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_InodeFileConfig kInodeFileConfig() { return {}; }
-  template <typename T = InodeFileConfig> T* set_inode_file_config() {
-    return BeginNestedMessage<T>(102);
-  }
-
-  void set_inode_file_config_raw(const std::string& raw) {
-    return AppendBytes(102, raw.data(), raw.size());
-  }
-
-
-  using FieldMetadata_ProcessStatsConfig =
-    ::protozero::proto_utils::FieldMetadata<
-      103,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      ProcessStatsConfig,
-      DataSourceConfig>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_ProcessStatsConfig kProcessStatsConfig() { return {}; }
-  template <typename T = ProcessStatsConfig> T* set_process_stats_config() {
-    return BeginNestedMessage<T>(103);
-  }
-
-  void set_process_stats_config_raw(const std::string& raw) {
-    return AppendBytes(103, raw.data(), raw.size());
-  }
-
-
-  using FieldMetadata_SysStatsConfig =
-    ::protozero::proto_utils::FieldMetadata<
-      104,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      SysStatsConfig,
-      DataSourceConfig>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_SysStatsConfig kSysStatsConfig() { return {}; }
-  template <typename T = SysStatsConfig> T* set_sys_stats_config() {
-    return BeginNestedMessage<T>(104);
-  }
-
-  void set_sys_stats_config_raw(const std::string& raw) {
-    return AppendBytes(104, raw.data(), raw.size());
-  }
-
-
-  using FieldMetadata_HeapprofdConfig =
-    ::protozero::proto_utils::FieldMetadata<
-      105,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      HeapprofdConfig,
-      DataSourceConfig>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_HeapprofdConfig kHeapprofdConfig() { return {}; }
-  template <typename T = HeapprofdConfig> T* set_heapprofd_config() {
-    return BeginNestedMessage<T>(105);
-  }
-
-  void set_heapprofd_config_raw(const std::string& raw) {
-    return AppendBytes(105, raw.data(), raw.size());
-  }
-
-
-  using FieldMetadata_JavaHprofConfig =
-    ::protozero::proto_utils::FieldMetadata<
-      110,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      JavaHprofConfig,
-      DataSourceConfig>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_JavaHprofConfig kJavaHprofConfig() { return {}; }
-  template <typename T = JavaHprofConfig> T* set_java_hprof_config() {
-    return BeginNestedMessage<T>(110);
-  }
-
-  void set_java_hprof_config_raw(const std::string& raw) {
-    return AppendBytes(110, raw.data(), raw.size());
-  }
-
-
-  using FieldMetadata_AndroidPowerConfig =
-    ::protozero::proto_utils::FieldMetadata<
-      106,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      AndroidPowerConfig,
-      DataSourceConfig>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_AndroidPowerConfig kAndroidPowerConfig() { return {}; }
-  template <typename T = AndroidPowerConfig> T* set_android_power_config() {
-    return BeginNestedMessage<T>(106);
-  }
-
-  void set_android_power_config_raw(const std::string& raw) {
-    return AppendBytes(106, raw.data(), raw.size());
-  }
-
-
-  using FieldMetadata_AndroidLogConfig =
-    ::protozero::proto_utils::FieldMetadata<
-      107,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      AndroidLogConfig,
-      DataSourceConfig>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_AndroidLogConfig kAndroidLogConfig() { return {}; }
-  template <typename T = AndroidLogConfig> T* set_android_log_config() {
-    return BeginNestedMessage<T>(107);
-  }
-
-  void set_android_log_config_raw(const std::string& raw) {
-    return AppendBytes(107, raw.data(), raw.size());
-  }
-
-
-  using FieldMetadata_GpuCounterConfig =
-    ::protozero::proto_utils::FieldMetadata<
-      108,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      GpuCounterConfig,
-      DataSourceConfig>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_GpuCounterConfig kGpuCounterConfig() { return {}; }
-  template <typename T = GpuCounterConfig> T* set_gpu_counter_config() {
-    return BeginNestedMessage<T>(108);
-  }
-
-  void set_gpu_counter_config_raw(const std::string& raw) {
-    return AppendBytes(108, raw.data(), raw.size());
-  }
-
-
-  using FieldMetadata_PackagesListConfig =
-    ::protozero::proto_utils::FieldMetadata<
-      109,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      PackagesListConfig,
-      DataSourceConfig>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_PackagesListConfig kPackagesListConfig() { return {}; }
-  template <typename T = PackagesListConfig> T* set_packages_list_config() {
-    return BeginNestedMessage<T>(109);
-  }
-
-  void set_packages_list_config_raw(const std::string& raw) {
-    return AppendBytes(109, raw.data(), raw.size());
-  }
-
-
-  using FieldMetadata_PerfEventConfig =
-    ::protozero::proto_utils::FieldMetadata<
-      111,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      PerfEventConfig,
-      DataSourceConfig>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_PerfEventConfig kPerfEventConfig() { return {}; }
-  template <typename T = PerfEventConfig> T* set_perf_event_config() {
-    return BeginNestedMessage<T>(111);
-  }
-
-  void set_perf_event_config_raw(const std::string& raw) {
-    return AppendBytes(111, raw.data(), raw.size());
-  }
-
-
-  using FieldMetadata_VulkanMemoryConfig =
-    ::protozero::proto_utils::FieldMetadata<
-      112,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      VulkanMemoryConfig,
-      DataSourceConfig>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_VulkanMemoryConfig kVulkanMemoryConfig() { return {}; }
-  template <typename T = VulkanMemoryConfig> T* set_vulkan_memory_config() {
-    return BeginNestedMessage<T>(112);
-  }
-
-  void set_vulkan_memory_config_raw(const std::string& raw) {
-    return AppendBytes(112, raw.data(), raw.size());
-  }
-
-
-  using FieldMetadata_TrackEventConfig =
-    ::protozero::proto_utils::FieldMetadata<
-      113,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      TrackEventConfig,
-      DataSourceConfig>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_TrackEventConfig kTrackEventConfig() { return {}; }
-  template <typename T = TrackEventConfig> T* set_track_event_config() {
-    return BeginNestedMessage<T>(113);
-  }
-
-  void set_track_event_config_raw(const std::string& raw) {
-    return AppendBytes(113, raw.data(), raw.size());
-  }
-
-
-  using FieldMetadata_AndroidPolledStateConfig =
-    ::protozero::proto_utils::FieldMetadata<
-      114,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      AndroidPolledStateConfig,
-      DataSourceConfig>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_AndroidPolledStateConfig kAndroidPolledStateConfig() { return {}; }
-  template <typename T = AndroidPolledStateConfig> T* set_android_polled_state_config() {
-    return BeginNestedMessage<T>(114);
-  }
-
-  void set_android_polled_state_config_raw(const std::string& raw) {
-    return AppendBytes(114, raw.data(), raw.size());
-  }
-
-
-  using FieldMetadata_ChromeConfig =
-    ::protozero::proto_utils::FieldMetadata<
-      101,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      ChromeConfig,
-      DataSourceConfig>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_ChromeConfig kChromeConfig() { return {}; }
-  template <typename T = ChromeConfig> T* set_chrome_config() {
-    return BeginNestedMessage<T>(101);
-  }
-
-
-  using FieldMetadata_InterceptorConfig =
-    ::protozero::proto_utils::FieldMetadata<
-      115,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      InterceptorConfig,
-      DataSourceConfig>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_InterceptorConfig kInterceptorConfig() { return {}; }
-  template <typename T = InterceptorConfig> T* set_interceptor_config() {
-    return BeginNestedMessage<T>(115);
-  }
-
-
-  using FieldMetadata_LegacyConfig =
-    ::protozero::proto_utils::FieldMetadata<
-      1000,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kString,
-      std::string,
-      DataSourceConfig>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_LegacyConfig kLegacyConfig() { return {}; }
-  void set_legacy_config(const char* data, size_t size) {
-    AppendBytes(FieldMetadata_LegacyConfig::kFieldId, data, size);
-  }
-  void set_legacy_config(std::string value) {
-    static constexpr uint32_t field_id = FieldMetadata_LegacyConfig::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kString>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_ForTesting =
-    ::protozero::proto_utils::FieldMetadata<
-      1001,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      TestConfig,
-      DataSourceConfig>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_ForTesting kForTesting() { return {}; }
-  template <typename T = TestConfig> T* set_for_testing() {
-    return BeginNestedMessage<T>(1001);
-  }
-
-};
-
-} // Namespace.
-} // Namespace.
-} // Namespace.
-#endif  // Include guard.
-// gen_amalgamated begin header: gen/protos/perfetto/config/interceptor_config.pbzero.h
-// Autogenerated by the ProtoZero compiler plugin. DO NOT EDIT.
-
-#ifndef PERFETTO_PROTOS_PROTOS_PERFETTO_CONFIG_INTERCEPTOR_CONFIG_PROTO_H_
-#define PERFETTO_PROTOS_PROTOS_PERFETTO_CONFIG_INTERCEPTOR_CONFIG_PROTO_H_
-
-#include <stddef.h>
-#include <stdint.h>
-
-// gen_amalgamated expanded: #include "perfetto/protozero/field_writer.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/message.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/packed_repeated_fields.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/proto_decoder.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/proto_utils.h"
-
-namespace perfetto {
-namespace protos {
-namespace pbzero {
-
-class ConsoleConfig;
-
-class InterceptorConfig_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/100, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  InterceptorConfig_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit InterceptorConfig_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit InterceptorConfig_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_name() const { return at<1>().valid(); }
-  ::protozero::ConstChars name() const { return at<1>().as_string(); }
-  bool has_console_config() const { return at<100>().valid(); }
-  ::protozero::ConstBytes console_config() const { return at<100>().as_bytes(); }
-};
-
-class InterceptorConfig : public ::protozero::Message {
- public:
-  using Decoder = InterceptorConfig_Decoder;
-  enum : int32_t {
-    kNameFieldNumber = 1,
-    kConsoleConfigFieldNumber = 100,
-  };
-
-  using FieldMetadata_Name =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kString,
-      std::string,
-      InterceptorConfig>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Name kName() { return {}; }
-  void set_name(const char* data, size_t size) {
-    AppendBytes(FieldMetadata_Name::kFieldId, data, size);
-  }
-  void set_name(std::string value) {
-    static constexpr uint32_t field_id = FieldMetadata_Name::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kString>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_ConsoleConfig =
-    ::protozero::proto_utils::FieldMetadata<
-      100,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      ConsoleConfig,
-      InterceptorConfig>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_ConsoleConfig kConsoleConfig() { return {}; }
-  template <typename T = ConsoleConfig> T* set_console_config() {
-    return BeginNestedMessage<T>(100);
-  }
-
-  void set_console_config_raw(const std::string& raw) {
-    return AppendBytes(100, raw.data(), raw.size());
-  }
-
-};
-
-} // Namespace.
-} // Namespace.
-} // Namespace.
-#endif  // Include guard.
-// gen_amalgamated begin header: gen/protos/perfetto/config/stress_test_config.pbzero.h
-// Autogenerated by the ProtoZero compiler plugin. DO NOT EDIT.
-
-#ifndef PERFETTO_PROTOS_PROTOS_PERFETTO_CONFIG_STRESS_TEST_CONFIG_PROTO_H_
-#define PERFETTO_PROTOS_PROTOS_PERFETTO_CONFIG_STRESS_TEST_CONFIG_PROTO_H_
-
-#include <stddef.h>
-#include <stdint.h>
-
-// gen_amalgamated expanded: #include "perfetto/protozero/field_writer.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/message.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/packed_repeated_fields.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/proto_decoder.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/proto_utils.h"
-
-namespace perfetto {
-namespace protos {
-namespace pbzero {
-
-class StressTestConfig_WriterTiming;
-class TraceConfig;
-
-class StressTestConfig_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/11, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  StressTestConfig_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit StressTestConfig_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit StressTestConfig_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_trace_config() const { return at<1>().valid(); }
-  ::protozero::ConstBytes trace_config() const { return at<1>().as_bytes(); }
-  bool has_shmem_size_kb() const { return at<2>().valid(); }
-  uint32_t shmem_size_kb() const { return at<2>().as_uint32(); }
-  bool has_shmem_page_size_kb() const { return at<3>().valid(); }
-  uint32_t shmem_page_size_kb() const { return at<3>().as_uint32(); }
-  bool has_num_processes() const { return at<4>().valid(); }
-  uint32_t num_processes() const { return at<4>().as_uint32(); }
-  bool has_num_threads() const { return at<5>().valid(); }
-  uint32_t num_threads() const { return at<5>().as_uint32(); }
-  bool has_max_events() const { return at<6>().valid(); }
-  uint32_t max_events() const { return at<6>().as_uint32(); }
-  bool has_nesting() const { return at<7>().valid(); }
-  uint32_t nesting() const { return at<7>().as_uint32(); }
-  bool has_steady_state_timings() const { return at<8>().valid(); }
-  ::protozero::ConstBytes steady_state_timings() const { return at<8>().as_bytes(); }
-  bool has_burst_period_ms() const { return at<9>().valid(); }
-  uint32_t burst_period_ms() const { return at<9>().as_uint32(); }
-  bool has_burst_duration_ms() const { return at<10>().valid(); }
-  uint32_t burst_duration_ms() const { return at<10>().as_uint32(); }
-  bool has_burst_timings() const { return at<11>().valid(); }
-  ::protozero::ConstBytes burst_timings() const { return at<11>().as_bytes(); }
-};
-
-class StressTestConfig : public ::protozero::Message {
- public:
-  using Decoder = StressTestConfig_Decoder;
-  enum : int32_t {
-    kTraceConfigFieldNumber = 1,
-    kShmemSizeKbFieldNumber = 2,
-    kShmemPageSizeKbFieldNumber = 3,
-    kNumProcessesFieldNumber = 4,
-    kNumThreadsFieldNumber = 5,
-    kMaxEventsFieldNumber = 6,
-    kNestingFieldNumber = 7,
-    kSteadyStateTimingsFieldNumber = 8,
-    kBurstPeriodMsFieldNumber = 9,
-    kBurstDurationMsFieldNumber = 10,
-    kBurstTimingsFieldNumber = 11,
-  };
-  using WriterTiming = ::perfetto::protos::pbzero::StressTestConfig_WriterTiming;
-
-  using FieldMetadata_TraceConfig =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      TraceConfig,
-      StressTestConfig>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_TraceConfig kTraceConfig() { return {}; }
-  template <typename T = TraceConfig> T* set_trace_config() {
-    return BeginNestedMessage<T>(1);
-  }
-
-
-  using FieldMetadata_ShmemSizeKb =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      StressTestConfig>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_ShmemSizeKb kShmemSizeKb() { return {}; }
-  void set_shmem_size_kb(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_ShmemSizeKb::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_ShmemPageSizeKb =
-    ::protozero::proto_utils::FieldMetadata<
-      3,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      StressTestConfig>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_ShmemPageSizeKb kShmemPageSizeKb() { return {}; }
-  void set_shmem_page_size_kb(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_ShmemPageSizeKb::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_NumProcesses =
-    ::protozero::proto_utils::FieldMetadata<
-      4,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      StressTestConfig>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_NumProcesses kNumProcesses() { return {}; }
-  void set_num_processes(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_NumProcesses::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_NumThreads =
-    ::protozero::proto_utils::FieldMetadata<
-      5,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      StressTestConfig>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_NumThreads kNumThreads() { return {}; }
-  void set_num_threads(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_NumThreads::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_MaxEvents =
-    ::protozero::proto_utils::FieldMetadata<
-      6,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      StressTestConfig>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_MaxEvents kMaxEvents() { return {}; }
-  void set_max_events(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_MaxEvents::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Nesting =
-    ::protozero::proto_utils::FieldMetadata<
-      7,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      StressTestConfig>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Nesting kNesting() { return {}; }
-  void set_nesting(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Nesting::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_SteadyStateTimings =
-    ::protozero::proto_utils::FieldMetadata<
-      8,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      StressTestConfig_WriterTiming,
-      StressTestConfig>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_SteadyStateTimings kSteadyStateTimings() { return {}; }
-  template <typename T = StressTestConfig_WriterTiming> T* set_steady_state_timings() {
-    return BeginNestedMessage<T>(8);
-  }
-
-
-  using FieldMetadata_BurstPeriodMs =
-    ::protozero::proto_utils::FieldMetadata<
-      9,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      StressTestConfig>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_BurstPeriodMs kBurstPeriodMs() { return {}; }
-  void set_burst_period_ms(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_BurstPeriodMs::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_BurstDurationMs =
-    ::protozero::proto_utils::FieldMetadata<
-      10,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      StressTestConfig>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_BurstDurationMs kBurstDurationMs() { return {}; }
-  void set_burst_duration_ms(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_BurstDurationMs::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_BurstTimings =
-    ::protozero::proto_utils::FieldMetadata<
-      11,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      StressTestConfig_WriterTiming,
-      StressTestConfig>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_BurstTimings kBurstTimings() { return {}; }
-  template <typename T = StressTestConfig_WriterTiming> T* set_burst_timings() {
-    return BeginNestedMessage<T>(11);
-  }
-
-};
-
-class StressTestConfig_WriterTiming_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/5, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  StressTestConfig_WriterTiming_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit StressTestConfig_WriterTiming_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit StressTestConfig_WriterTiming_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_payload_mean() const { return at<1>().valid(); }
-  double payload_mean() const { return at<1>().as_double(); }
-  bool has_payload_stddev() const { return at<2>().valid(); }
-  double payload_stddev() const { return at<2>().as_double(); }
-  bool has_rate_mean() const { return at<3>().valid(); }
-  double rate_mean() const { return at<3>().as_double(); }
-  bool has_rate_stddev() const { return at<4>().valid(); }
-  double rate_stddev() const { return at<4>().as_double(); }
-  bool has_payload_write_time_ms() const { return at<5>().valid(); }
-  uint32_t payload_write_time_ms() const { return at<5>().as_uint32(); }
-};
-
-class StressTestConfig_WriterTiming : public ::protozero::Message {
- public:
-  using Decoder = StressTestConfig_WriterTiming_Decoder;
-  enum : int32_t {
-    kPayloadMeanFieldNumber = 1,
-    kPayloadStddevFieldNumber = 2,
-    kRateMeanFieldNumber = 3,
-    kRateStddevFieldNumber = 4,
-    kPayloadWriteTimeMsFieldNumber = 5,
-  };
-
-  using FieldMetadata_PayloadMean =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kDouble,
-      double,
-      StressTestConfig_WriterTiming>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_PayloadMean kPayloadMean() { return {}; }
-  void set_payload_mean(double value) {
-    static constexpr uint32_t field_id = FieldMetadata_PayloadMean::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kDouble>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_PayloadStddev =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kDouble,
-      double,
-      StressTestConfig_WriterTiming>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_PayloadStddev kPayloadStddev() { return {}; }
-  void set_payload_stddev(double value) {
-    static constexpr uint32_t field_id = FieldMetadata_PayloadStddev::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kDouble>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_RateMean =
-    ::protozero::proto_utils::FieldMetadata<
-      3,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kDouble,
-      double,
-      StressTestConfig_WriterTiming>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_RateMean kRateMean() { return {}; }
-  void set_rate_mean(double value) {
-    static constexpr uint32_t field_id = FieldMetadata_RateMean::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kDouble>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_RateStddev =
-    ::protozero::proto_utils::FieldMetadata<
-      4,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kDouble,
-      double,
-      StressTestConfig_WriterTiming>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_RateStddev kRateStddev() { return {}; }
-  void set_rate_stddev(double value) {
-    static constexpr uint32_t field_id = FieldMetadata_RateStddev::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kDouble>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_PayloadWriteTimeMs =
-    ::protozero::proto_utils::FieldMetadata<
-      5,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      StressTestConfig_WriterTiming>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_PayloadWriteTimeMs kPayloadWriteTimeMs() { return {}; }
-  void set_payload_write_time_ms(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_PayloadWriteTimeMs::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-};
-
-} // Namespace.
-} // Namespace.
-} // Namespace.
-#endif  // Include guard.
-// gen_amalgamated begin header: gen/protos/perfetto/config/test_config.pbzero.h
-// Autogenerated by the ProtoZero compiler plugin. DO NOT EDIT.
-
-#ifndef PERFETTO_PROTOS_PROTOS_PERFETTO_CONFIG_TEST_CONFIG_PROTO_H_
-#define PERFETTO_PROTOS_PROTOS_PERFETTO_CONFIG_TEST_CONFIG_PROTO_H_
-
-#include <stddef.h>
-#include <stdint.h>
-
-// gen_amalgamated expanded: #include "perfetto/protozero/field_writer.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/message.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/packed_repeated_fields.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/proto_decoder.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/proto_utils.h"
-
-namespace perfetto {
-namespace protos {
-namespace pbzero {
-
-class TestConfig_DummyFields;
-
-class TestConfig_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/6, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  TestConfig_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit TestConfig_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit TestConfig_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_message_count() const { return at<1>().valid(); }
-  uint32_t message_count() const { return at<1>().as_uint32(); }
-  bool has_max_messages_per_second() const { return at<2>().valid(); }
-  uint32_t max_messages_per_second() const { return at<2>().as_uint32(); }
-  bool has_seed() const { return at<3>().valid(); }
-  uint32_t seed() const { return at<3>().as_uint32(); }
-  bool has_message_size() const { return at<4>().valid(); }
-  uint32_t message_size() const { return at<4>().as_uint32(); }
-  bool has_send_batch_on_register() const { return at<5>().valid(); }
-  bool send_batch_on_register() const { return at<5>().as_bool(); }
-  bool has_dummy_fields() const { return at<6>().valid(); }
-  ::protozero::ConstBytes dummy_fields() const { return at<6>().as_bytes(); }
-};
-
-class TestConfig : public ::protozero::Message {
- public:
-  using Decoder = TestConfig_Decoder;
-  enum : int32_t {
-    kMessageCountFieldNumber = 1,
-    kMaxMessagesPerSecondFieldNumber = 2,
-    kSeedFieldNumber = 3,
-    kMessageSizeFieldNumber = 4,
-    kSendBatchOnRegisterFieldNumber = 5,
-    kDummyFieldsFieldNumber = 6,
-  };
-  using DummyFields = ::perfetto::protos::pbzero::TestConfig_DummyFields;
-
-  using FieldMetadata_MessageCount =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      TestConfig>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_MessageCount kMessageCount() { return {}; }
-  void set_message_count(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_MessageCount::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_MaxMessagesPerSecond =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      TestConfig>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_MaxMessagesPerSecond kMaxMessagesPerSecond() { return {}; }
-  void set_max_messages_per_second(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_MaxMessagesPerSecond::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Seed =
-    ::protozero::proto_utils::FieldMetadata<
-      3,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      TestConfig>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Seed kSeed() { return {}; }
-  void set_seed(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Seed::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_MessageSize =
-    ::protozero::proto_utils::FieldMetadata<
-      4,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      TestConfig>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_MessageSize kMessageSize() { return {}; }
-  void set_message_size(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_MessageSize::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_SendBatchOnRegister =
-    ::protozero::proto_utils::FieldMetadata<
-      5,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kBool,
-      bool,
-      TestConfig>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_SendBatchOnRegister kSendBatchOnRegister() { return {}; }
-  void set_send_batch_on_register(bool value) {
-    static constexpr uint32_t field_id = FieldMetadata_SendBatchOnRegister::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kBool>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_DummyFields =
-    ::protozero::proto_utils::FieldMetadata<
-      6,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      TestConfig_DummyFields,
-      TestConfig>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_DummyFields kDummyFields() { return {}; }
-  template <typename T = TestConfig_DummyFields> T* set_dummy_fields() {
-    return BeginNestedMessage<T>(6);
-  }
-
-};
-
-class TestConfig_DummyFields_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/14, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  TestConfig_DummyFields_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit TestConfig_DummyFields_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit TestConfig_DummyFields_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_field_uint32() const { return at<1>().valid(); }
-  uint32_t field_uint32() const { return at<1>().as_uint32(); }
-  bool has_field_int32() const { return at<2>().valid(); }
-  int32_t field_int32() const { return at<2>().as_int32(); }
-  bool has_field_uint64() const { return at<3>().valid(); }
-  uint64_t field_uint64() const { return at<3>().as_uint64(); }
-  bool has_field_int64() const { return at<4>().valid(); }
-  int64_t field_int64() const { return at<4>().as_int64(); }
-  bool has_field_fixed64() const { return at<5>().valid(); }
-  uint64_t field_fixed64() const { return at<5>().as_uint64(); }
-  bool has_field_sfixed64() const { return at<6>().valid(); }
-  int64_t field_sfixed64() const { return at<6>().as_int64(); }
-  bool has_field_fixed32() const { return at<7>().valid(); }
-  uint32_t field_fixed32() const { return at<7>().as_uint32(); }
-  bool has_field_sfixed32() const { return at<8>().valid(); }
-  int32_t field_sfixed32() const { return at<8>().as_int32(); }
-  bool has_field_double() const { return at<9>().valid(); }
-  double field_double() const { return at<9>().as_double(); }
-  bool has_field_float() const { return at<10>().valid(); }
-  float field_float() const { return at<10>().as_float(); }
-  bool has_field_sint64() const { return at<11>().valid(); }
-  int64_t field_sint64() const { return at<11>().as_int64(); }
-  bool has_field_sint32() const { return at<12>().valid(); }
-  int32_t field_sint32() const { return at<12>().as_int32(); }
-  bool has_field_string() const { return at<13>().valid(); }
-  ::protozero::ConstChars field_string() const { return at<13>().as_string(); }
-  bool has_field_bytes() const { return at<14>().valid(); }
-  ::protozero::ConstBytes field_bytes() const { return at<14>().as_bytes(); }
-};
-
-class TestConfig_DummyFields : public ::protozero::Message {
- public:
-  using Decoder = TestConfig_DummyFields_Decoder;
-  enum : int32_t {
-    kFieldUint32FieldNumber = 1,
-    kFieldInt32FieldNumber = 2,
-    kFieldUint64FieldNumber = 3,
-    kFieldInt64FieldNumber = 4,
-    kFieldFixed64FieldNumber = 5,
-    kFieldSfixed64FieldNumber = 6,
-    kFieldFixed32FieldNumber = 7,
-    kFieldSfixed32FieldNumber = 8,
-    kFieldDoubleFieldNumber = 9,
-    kFieldFloatFieldNumber = 10,
-    kFieldSint64FieldNumber = 11,
-    kFieldSint32FieldNumber = 12,
-    kFieldStringFieldNumber = 13,
-    kFieldBytesFieldNumber = 14,
-  };
-
-  using FieldMetadata_FieldUint32 =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      TestConfig_DummyFields>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_FieldUint32 kFieldUint32() { return {}; }
-  void set_field_uint32(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_FieldUint32::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_FieldInt32 =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt32,
-      int32_t,
-      TestConfig_DummyFields>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_FieldInt32 kFieldInt32() { return {}; }
-  void set_field_int32(int32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_FieldInt32::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_FieldUint64 =
-    ::protozero::proto_utils::FieldMetadata<
-      3,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      TestConfig_DummyFields>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_FieldUint64 kFieldUint64() { return {}; }
-  void set_field_uint64(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_FieldUint64::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_FieldInt64 =
-    ::protozero::proto_utils::FieldMetadata<
-      4,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt64,
-      int64_t,
-      TestConfig_DummyFields>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_FieldInt64 kFieldInt64() { return {}; }
-  void set_field_int64(int64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_FieldInt64::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_FieldFixed64 =
-    ::protozero::proto_utils::FieldMetadata<
-      5,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kFixed64,
-      uint64_t,
-      TestConfig_DummyFields>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_FieldFixed64 kFieldFixed64() { return {}; }
-  void set_field_fixed64(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_FieldFixed64::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kFixed64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_FieldSfixed64 =
-    ::protozero::proto_utils::FieldMetadata<
-      6,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kSfixed64,
-      int64_t,
-      TestConfig_DummyFields>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_FieldSfixed64 kFieldSfixed64() { return {}; }
-  void set_field_sfixed64(int64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_FieldSfixed64::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kSfixed64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_FieldFixed32 =
-    ::protozero::proto_utils::FieldMetadata<
-      7,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kFixed32,
-      uint32_t,
-      TestConfig_DummyFields>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_FieldFixed32 kFieldFixed32() { return {}; }
-  void set_field_fixed32(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_FieldFixed32::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kFixed32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_FieldSfixed32 =
-    ::protozero::proto_utils::FieldMetadata<
-      8,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kSfixed32,
-      int32_t,
-      TestConfig_DummyFields>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_FieldSfixed32 kFieldSfixed32() { return {}; }
-  void set_field_sfixed32(int32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_FieldSfixed32::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kSfixed32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_FieldDouble =
-    ::protozero::proto_utils::FieldMetadata<
-      9,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kDouble,
-      double,
-      TestConfig_DummyFields>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_FieldDouble kFieldDouble() { return {}; }
-  void set_field_double(double value) {
-    static constexpr uint32_t field_id = FieldMetadata_FieldDouble::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kDouble>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_FieldFloat =
-    ::protozero::proto_utils::FieldMetadata<
-      10,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kFloat,
-      float,
-      TestConfig_DummyFields>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_FieldFloat kFieldFloat() { return {}; }
-  void set_field_float(float value) {
-    static constexpr uint32_t field_id = FieldMetadata_FieldFloat::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kFloat>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_FieldSint64 =
-    ::protozero::proto_utils::FieldMetadata<
-      11,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kSint64,
-      int64_t,
-      TestConfig_DummyFields>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_FieldSint64 kFieldSint64() { return {}; }
-  void set_field_sint64(int64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_FieldSint64::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kSint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_FieldSint32 =
-    ::protozero::proto_utils::FieldMetadata<
-      12,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kSint32,
-      int32_t,
-      TestConfig_DummyFields>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_FieldSint32 kFieldSint32() { return {}; }
-  void set_field_sint32(int32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_FieldSint32::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kSint32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_FieldString =
-    ::protozero::proto_utils::FieldMetadata<
-      13,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kString,
-      std::string,
-      TestConfig_DummyFields>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_FieldString kFieldString() { return {}; }
-  void set_field_string(const char* data, size_t size) {
-    AppendBytes(FieldMetadata_FieldString::kFieldId, data, size);
-  }
-  void set_field_string(std::string value) {
-    static constexpr uint32_t field_id = FieldMetadata_FieldString::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kString>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_FieldBytes =
-    ::protozero::proto_utils::FieldMetadata<
-      14,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kBytes,
-      std::string,
-      TestConfig_DummyFields>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_FieldBytes kFieldBytes() { return {}; }
-  void set_field_bytes(const uint8_t* data, size_t size) {
-    AppendBytes(FieldMetadata_FieldBytes::kFieldId, data, size);
-  }
-  void set_field_bytes(std::string value) {
-    static constexpr uint32_t field_id = FieldMetadata_FieldBytes::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kBytes>
-        ::Append(*this, field_id, value);
-  }
-};
-
-} // Namespace.
-} // Namespace.
-} // Namespace.
-#endif  // Include guard.
-// gen_amalgamated begin header: gen/protos/perfetto/config/trace_config.pbzero.h
-// Autogenerated by the ProtoZero compiler plugin. DO NOT EDIT.
-
-#ifndef PERFETTO_PROTOS_PROTOS_PERFETTO_CONFIG_TRACE_CONFIG_PROTO_H_
-#define PERFETTO_PROTOS_PROTOS_PERFETTO_CONFIG_TRACE_CONFIG_PROTO_H_
-
-#include <stddef.h>
-#include <stdint.h>
-
-// gen_amalgamated expanded: #include "perfetto/protozero/field_writer.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/message.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/packed_repeated_fields.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/proto_decoder.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/proto_utils.h"
-
-namespace perfetto {
-namespace protos {
-namespace pbzero {
-
-class DataSourceConfig;
-class TraceConfig_BufferConfig;
-class TraceConfig_BuiltinDataSource;
-class TraceConfig_DataSource;
-class TraceConfig_GuardrailOverrides;
-class TraceConfig_IncidentReportConfig;
-class TraceConfig_IncrementalStateConfig;
-class TraceConfig_ProducerConfig;
-class TraceConfig_StatsdMetadata;
-class TraceConfig_TraceFilter;
-class TraceConfig_TriggerConfig;
-class TraceConfig_TriggerConfig_Trigger;
-enum BuiltinClock : int32_t;
-enum TraceConfig_BufferConfig_FillPolicy : int32_t;
-enum TraceConfig_CompressionType : int32_t;
-enum TraceConfig_LockdownModeOperation : int32_t;
-enum TraceConfig_StatsdLogging : int32_t;
-enum TraceConfig_TriggerConfig_TriggerMode : int32_t;
-
-enum TraceConfig_LockdownModeOperation : int32_t {
-  TraceConfig_LockdownModeOperation_LOCKDOWN_UNCHANGED = 0,
-  TraceConfig_LockdownModeOperation_LOCKDOWN_CLEAR = 1,
-  TraceConfig_LockdownModeOperation_LOCKDOWN_SET = 2,
-};
-
-const TraceConfig_LockdownModeOperation TraceConfig_LockdownModeOperation_MIN = TraceConfig_LockdownModeOperation_LOCKDOWN_UNCHANGED;
-const TraceConfig_LockdownModeOperation TraceConfig_LockdownModeOperation_MAX = TraceConfig_LockdownModeOperation_LOCKDOWN_SET;
-
-enum TraceConfig_CompressionType : int32_t {
-  TraceConfig_CompressionType_COMPRESSION_TYPE_UNSPECIFIED = 0,
-  TraceConfig_CompressionType_COMPRESSION_TYPE_DEFLATE = 1,
-};
-
-const TraceConfig_CompressionType TraceConfig_CompressionType_MIN = TraceConfig_CompressionType_COMPRESSION_TYPE_UNSPECIFIED;
-const TraceConfig_CompressionType TraceConfig_CompressionType_MAX = TraceConfig_CompressionType_COMPRESSION_TYPE_DEFLATE;
-
-enum TraceConfig_StatsdLogging : int32_t {
-  TraceConfig_StatsdLogging_STATSD_LOGGING_UNSPECIFIED = 0,
-  TraceConfig_StatsdLogging_STATSD_LOGGING_ENABLED = 1,
-  TraceConfig_StatsdLogging_STATSD_LOGGING_DISABLED = 2,
-};
-
-const TraceConfig_StatsdLogging TraceConfig_StatsdLogging_MIN = TraceConfig_StatsdLogging_STATSD_LOGGING_UNSPECIFIED;
-const TraceConfig_StatsdLogging TraceConfig_StatsdLogging_MAX = TraceConfig_StatsdLogging_STATSD_LOGGING_DISABLED;
-
-enum TraceConfig_TriggerConfig_TriggerMode : int32_t {
-  TraceConfig_TriggerConfig_TriggerMode_UNSPECIFIED = 0,
-  TraceConfig_TriggerConfig_TriggerMode_START_TRACING = 1,
-  TraceConfig_TriggerConfig_TriggerMode_STOP_TRACING = 2,
-};
-
-const TraceConfig_TriggerConfig_TriggerMode TraceConfig_TriggerConfig_TriggerMode_MIN = TraceConfig_TriggerConfig_TriggerMode_UNSPECIFIED;
-const TraceConfig_TriggerConfig_TriggerMode TraceConfig_TriggerConfig_TriggerMode_MAX = TraceConfig_TriggerConfig_TriggerMode_STOP_TRACING;
-
-enum TraceConfig_BufferConfig_FillPolicy : int32_t {
-  TraceConfig_BufferConfig_FillPolicy_UNSPECIFIED = 0,
-  TraceConfig_BufferConfig_FillPolicy_RING_BUFFER = 1,
-  TraceConfig_BufferConfig_FillPolicy_DISCARD = 2,
-};
-
-const TraceConfig_BufferConfig_FillPolicy TraceConfig_BufferConfig_FillPolicy_MIN = TraceConfig_BufferConfig_FillPolicy_UNSPECIFIED;
-const TraceConfig_BufferConfig_FillPolicy TraceConfig_BufferConfig_FillPolicy_MAX = TraceConfig_BufferConfig_FillPolicy_DISCARD;
-
-class TraceConfig_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/32, /*HAS_NONPACKED_REPEATED_FIELDS=*/true> {
- public:
-  TraceConfig_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit TraceConfig_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit TraceConfig_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_buffers() const { return at<1>().valid(); }
-  ::protozero::RepeatedFieldIterator<::protozero::ConstBytes> buffers() const { return GetRepeated<::protozero::ConstBytes>(1); }
-  bool has_data_sources() const { return at<2>().valid(); }
-  ::protozero::RepeatedFieldIterator<::protozero::ConstBytes> data_sources() const { return GetRepeated<::protozero::ConstBytes>(2); }
-  bool has_builtin_data_sources() const { return at<20>().valid(); }
-  ::protozero::ConstBytes builtin_data_sources() const { return at<20>().as_bytes(); }
-  bool has_duration_ms() const { return at<3>().valid(); }
-  uint32_t duration_ms() const { return at<3>().as_uint32(); }
-  bool has_enable_extra_guardrails() const { return at<4>().valid(); }
-  bool enable_extra_guardrails() const { return at<4>().as_bool(); }
-  bool has_lockdown_mode() const { return at<5>().valid(); }
-  int32_t lockdown_mode() const { return at<5>().as_int32(); }
-  bool has_producers() const { return at<6>().valid(); }
-  ::protozero::RepeatedFieldIterator<::protozero::ConstBytes> producers() const { return GetRepeated<::protozero::ConstBytes>(6); }
-  bool has_statsd_metadata() const { return at<7>().valid(); }
-  ::protozero::ConstBytes statsd_metadata() const { return at<7>().as_bytes(); }
-  bool has_write_into_file() const { return at<8>().valid(); }
-  bool write_into_file() const { return at<8>().as_bool(); }
-  bool has_output_path() const { return at<29>().valid(); }
-  ::protozero::ConstChars output_path() const { return at<29>().as_string(); }
-  bool has_file_write_period_ms() const { return at<9>().valid(); }
-  uint32_t file_write_period_ms() const { return at<9>().as_uint32(); }
-  bool has_max_file_size_bytes() const { return at<10>().valid(); }
-  uint64_t max_file_size_bytes() const { return at<10>().as_uint64(); }
-  bool has_guardrail_overrides() const { return at<11>().valid(); }
-  ::protozero::ConstBytes guardrail_overrides() const { return at<11>().as_bytes(); }
-  bool has_deferred_start() const { return at<12>().valid(); }
-  bool deferred_start() const { return at<12>().as_bool(); }
-  bool has_flush_period_ms() const { return at<13>().valid(); }
-  uint32_t flush_period_ms() const { return at<13>().as_uint32(); }
-  bool has_flush_timeout_ms() const { return at<14>().valid(); }
-  uint32_t flush_timeout_ms() const { return at<14>().as_uint32(); }
-  bool has_data_source_stop_timeout_ms() const { return at<23>().valid(); }
-  uint32_t data_source_stop_timeout_ms() const { return at<23>().as_uint32(); }
-  bool has_notify_traceur() const { return at<16>().valid(); }
-  bool notify_traceur() const { return at<16>().as_bool(); }
-  bool has_bugreport_score() const { return at<30>().valid(); }
-  int32_t bugreport_score() const { return at<30>().as_int32(); }
-  bool has_trigger_config() const { return at<17>().valid(); }
-  ::protozero::ConstBytes trigger_config() const { return at<17>().as_bytes(); }
-  bool has_activate_triggers() const { return at<18>().valid(); }
-  ::protozero::RepeatedFieldIterator<::protozero::ConstChars> activate_triggers() const { return GetRepeated<::protozero::ConstChars>(18); }
-  bool has_incremental_state_config() const { return at<21>().valid(); }
-  ::protozero::ConstBytes incremental_state_config() const { return at<21>().as_bytes(); }
-  bool has_allow_user_build_tracing() const { return at<19>().valid(); }
-  bool allow_user_build_tracing() const { return at<19>().as_bool(); }
-  bool has_unique_session_name() const { return at<22>().valid(); }
-  ::protozero::ConstChars unique_session_name() const { return at<22>().as_string(); }
-  bool has_compression_type() const { return at<24>().valid(); }
-  int32_t compression_type() const { return at<24>().as_int32(); }
-  bool has_incident_report_config() const { return at<25>().valid(); }
-  ::protozero::ConstBytes incident_report_config() const { return at<25>().as_bytes(); }
-  bool has_statsd_logging() const { return at<31>().valid(); }
-  int32_t statsd_logging() const { return at<31>().as_int32(); }
-  bool has_trace_uuid_msb() const { return at<27>().valid(); }
-  int64_t trace_uuid_msb() const { return at<27>().as_int64(); }
-  bool has_trace_uuid_lsb() const { return at<28>().valid(); }
-  int64_t trace_uuid_lsb() const { return at<28>().as_int64(); }
-  bool has_trace_filter() const { return at<32>().valid(); }
-  ::protozero::ConstBytes trace_filter() const { return at<32>().as_bytes(); }
-};
-
-class TraceConfig : public ::protozero::Message {
- public:
-  using Decoder = TraceConfig_Decoder;
-  enum : int32_t {
-    kBuffersFieldNumber = 1,
-    kDataSourcesFieldNumber = 2,
-    kBuiltinDataSourcesFieldNumber = 20,
-    kDurationMsFieldNumber = 3,
-    kEnableExtraGuardrailsFieldNumber = 4,
-    kLockdownModeFieldNumber = 5,
-    kProducersFieldNumber = 6,
-    kStatsdMetadataFieldNumber = 7,
-    kWriteIntoFileFieldNumber = 8,
-    kOutputPathFieldNumber = 29,
-    kFileWritePeriodMsFieldNumber = 9,
-    kMaxFileSizeBytesFieldNumber = 10,
-    kGuardrailOverridesFieldNumber = 11,
-    kDeferredStartFieldNumber = 12,
-    kFlushPeriodMsFieldNumber = 13,
-    kFlushTimeoutMsFieldNumber = 14,
-    kDataSourceStopTimeoutMsFieldNumber = 23,
-    kNotifyTraceurFieldNumber = 16,
-    kBugreportScoreFieldNumber = 30,
-    kTriggerConfigFieldNumber = 17,
-    kActivateTriggersFieldNumber = 18,
-    kIncrementalStateConfigFieldNumber = 21,
-    kAllowUserBuildTracingFieldNumber = 19,
-    kUniqueSessionNameFieldNumber = 22,
-    kCompressionTypeFieldNumber = 24,
-    kIncidentReportConfigFieldNumber = 25,
-    kStatsdLoggingFieldNumber = 31,
-    kTraceUuidMsbFieldNumber = 27,
-    kTraceUuidLsbFieldNumber = 28,
-    kTraceFilterFieldNumber = 32,
-  };
-  using BufferConfig = ::perfetto::protos::pbzero::TraceConfig_BufferConfig;
-  using DataSource = ::perfetto::protos::pbzero::TraceConfig_DataSource;
-  using BuiltinDataSource = ::perfetto::protos::pbzero::TraceConfig_BuiltinDataSource;
-  using ProducerConfig = ::perfetto::protos::pbzero::TraceConfig_ProducerConfig;
-  using StatsdMetadata = ::perfetto::protos::pbzero::TraceConfig_StatsdMetadata;
-  using GuardrailOverrides = ::perfetto::protos::pbzero::TraceConfig_GuardrailOverrides;
-  using TriggerConfig = ::perfetto::protos::pbzero::TraceConfig_TriggerConfig;
-  using IncrementalStateConfig = ::perfetto::protos::pbzero::TraceConfig_IncrementalStateConfig;
-  using IncidentReportConfig = ::perfetto::protos::pbzero::TraceConfig_IncidentReportConfig;
-  using TraceFilter = ::perfetto::protos::pbzero::TraceConfig_TraceFilter;
-  using LockdownModeOperation = ::perfetto::protos::pbzero::TraceConfig_LockdownModeOperation;
-  using CompressionType = ::perfetto::protos::pbzero::TraceConfig_CompressionType;
-  using StatsdLogging = ::perfetto::protos::pbzero::TraceConfig_StatsdLogging;
-  static const LockdownModeOperation LOCKDOWN_UNCHANGED = TraceConfig_LockdownModeOperation_LOCKDOWN_UNCHANGED;
-  static const LockdownModeOperation LOCKDOWN_CLEAR = TraceConfig_LockdownModeOperation_LOCKDOWN_CLEAR;
-  static const LockdownModeOperation LOCKDOWN_SET = TraceConfig_LockdownModeOperation_LOCKDOWN_SET;
-  static const CompressionType COMPRESSION_TYPE_UNSPECIFIED = TraceConfig_CompressionType_COMPRESSION_TYPE_UNSPECIFIED;
-  static const CompressionType COMPRESSION_TYPE_DEFLATE = TraceConfig_CompressionType_COMPRESSION_TYPE_DEFLATE;
-  static const StatsdLogging STATSD_LOGGING_UNSPECIFIED = TraceConfig_StatsdLogging_STATSD_LOGGING_UNSPECIFIED;
-  static const StatsdLogging STATSD_LOGGING_ENABLED = TraceConfig_StatsdLogging_STATSD_LOGGING_ENABLED;
-  static const StatsdLogging STATSD_LOGGING_DISABLED = TraceConfig_StatsdLogging_STATSD_LOGGING_DISABLED;
-
-  using FieldMetadata_Buffers =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kRepeatedNotPacked,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      TraceConfig_BufferConfig,
-      TraceConfig>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Buffers kBuffers() { return {}; }
-  template <typename T = TraceConfig_BufferConfig> T* add_buffers() {
-    return BeginNestedMessage<T>(1);
-  }
-
-
-  using FieldMetadata_DataSources =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kRepeatedNotPacked,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      TraceConfig_DataSource,
-      TraceConfig>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_DataSources kDataSources() { return {}; }
-  template <typename T = TraceConfig_DataSource> T* add_data_sources() {
-    return BeginNestedMessage<T>(2);
-  }
-
-
-  using FieldMetadata_BuiltinDataSources =
-    ::protozero::proto_utils::FieldMetadata<
-      20,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      TraceConfig_BuiltinDataSource,
-      TraceConfig>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_BuiltinDataSources kBuiltinDataSources() { return {}; }
-  template <typename T = TraceConfig_BuiltinDataSource> T* set_builtin_data_sources() {
-    return BeginNestedMessage<T>(20);
-  }
-
-
-  using FieldMetadata_DurationMs =
-    ::protozero::proto_utils::FieldMetadata<
-      3,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      TraceConfig>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_DurationMs kDurationMs() { return {}; }
-  void set_duration_ms(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_DurationMs::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_EnableExtraGuardrails =
-    ::protozero::proto_utils::FieldMetadata<
-      4,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kBool,
-      bool,
-      TraceConfig>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_EnableExtraGuardrails kEnableExtraGuardrails() { return {}; }
-  void set_enable_extra_guardrails(bool value) {
-    static constexpr uint32_t field_id = FieldMetadata_EnableExtraGuardrails::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kBool>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_LockdownMode =
-    ::protozero::proto_utils::FieldMetadata<
-      5,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kEnum,
-      ::perfetto::protos::pbzero::TraceConfig_LockdownModeOperation,
-      TraceConfig>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_LockdownMode kLockdownMode() { return {}; }
-  void set_lockdown_mode(::perfetto::protos::pbzero::TraceConfig_LockdownModeOperation value) {
-    static constexpr uint32_t field_id = FieldMetadata_LockdownMode::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kEnum>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Producers =
-    ::protozero::proto_utils::FieldMetadata<
-      6,
-      ::protozero::proto_utils::RepetitionType::kRepeatedNotPacked,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      TraceConfig_ProducerConfig,
-      TraceConfig>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Producers kProducers() { return {}; }
-  template <typename T = TraceConfig_ProducerConfig> T* add_producers() {
-    return BeginNestedMessage<T>(6);
-  }
-
-
-  using FieldMetadata_StatsdMetadata =
-    ::protozero::proto_utils::FieldMetadata<
-      7,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      TraceConfig_StatsdMetadata,
-      TraceConfig>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_StatsdMetadata kStatsdMetadata() { return {}; }
-  template <typename T = TraceConfig_StatsdMetadata> T* set_statsd_metadata() {
-    return BeginNestedMessage<T>(7);
-  }
-
-
-  using FieldMetadata_WriteIntoFile =
-    ::protozero::proto_utils::FieldMetadata<
-      8,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kBool,
-      bool,
-      TraceConfig>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_WriteIntoFile kWriteIntoFile() { return {}; }
-  void set_write_into_file(bool value) {
-    static constexpr uint32_t field_id = FieldMetadata_WriteIntoFile::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kBool>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_OutputPath =
-    ::protozero::proto_utils::FieldMetadata<
-      29,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kString,
-      std::string,
-      TraceConfig>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_OutputPath kOutputPath() { return {}; }
-  void set_output_path(const char* data, size_t size) {
-    AppendBytes(FieldMetadata_OutputPath::kFieldId, data, size);
-  }
-  void set_output_path(std::string value) {
-    static constexpr uint32_t field_id = FieldMetadata_OutputPath::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kString>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_FileWritePeriodMs =
-    ::protozero::proto_utils::FieldMetadata<
-      9,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      TraceConfig>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_FileWritePeriodMs kFileWritePeriodMs() { return {}; }
-  void set_file_write_period_ms(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_FileWritePeriodMs::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_MaxFileSizeBytes =
-    ::protozero::proto_utils::FieldMetadata<
-      10,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      TraceConfig>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_MaxFileSizeBytes kMaxFileSizeBytes() { return {}; }
-  void set_max_file_size_bytes(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_MaxFileSizeBytes::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_GuardrailOverrides =
-    ::protozero::proto_utils::FieldMetadata<
-      11,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      TraceConfig_GuardrailOverrides,
-      TraceConfig>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_GuardrailOverrides kGuardrailOverrides() { return {}; }
-  template <typename T = TraceConfig_GuardrailOverrides> T* set_guardrail_overrides() {
-    return BeginNestedMessage<T>(11);
-  }
-
-
-  using FieldMetadata_DeferredStart =
-    ::protozero::proto_utils::FieldMetadata<
-      12,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kBool,
-      bool,
-      TraceConfig>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_DeferredStart kDeferredStart() { return {}; }
-  void set_deferred_start(bool value) {
-    static constexpr uint32_t field_id = FieldMetadata_DeferredStart::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kBool>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_FlushPeriodMs =
-    ::protozero::proto_utils::FieldMetadata<
-      13,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      TraceConfig>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_FlushPeriodMs kFlushPeriodMs() { return {}; }
-  void set_flush_period_ms(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_FlushPeriodMs::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_FlushTimeoutMs =
-    ::protozero::proto_utils::FieldMetadata<
-      14,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      TraceConfig>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_FlushTimeoutMs kFlushTimeoutMs() { return {}; }
-  void set_flush_timeout_ms(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_FlushTimeoutMs::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_DataSourceStopTimeoutMs =
-    ::protozero::proto_utils::FieldMetadata<
-      23,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      TraceConfig>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_DataSourceStopTimeoutMs kDataSourceStopTimeoutMs() { return {}; }
-  void set_data_source_stop_timeout_ms(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_DataSourceStopTimeoutMs::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_NotifyTraceur =
-    ::protozero::proto_utils::FieldMetadata<
-      16,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kBool,
-      bool,
-      TraceConfig>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_NotifyTraceur kNotifyTraceur() { return {}; }
-  void set_notify_traceur(bool value) {
-    static constexpr uint32_t field_id = FieldMetadata_NotifyTraceur::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kBool>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_BugreportScore =
-    ::protozero::proto_utils::FieldMetadata<
-      30,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt32,
-      int32_t,
-      TraceConfig>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_BugreportScore kBugreportScore() { return {}; }
-  void set_bugreport_score(int32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_BugreportScore::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_TriggerConfig =
-    ::protozero::proto_utils::FieldMetadata<
-      17,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      TraceConfig_TriggerConfig,
-      TraceConfig>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_TriggerConfig kTriggerConfig() { return {}; }
-  template <typename T = TraceConfig_TriggerConfig> T* set_trigger_config() {
-    return BeginNestedMessage<T>(17);
-  }
-
-
-  using FieldMetadata_ActivateTriggers =
-    ::protozero::proto_utils::FieldMetadata<
-      18,
-      ::protozero::proto_utils::RepetitionType::kRepeatedNotPacked,
-      ::protozero::proto_utils::ProtoSchemaType::kString,
-      std::string,
-      TraceConfig>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_ActivateTriggers kActivateTriggers() { return {}; }
-  void add_activate_triggers(const char* data, size_t size) {
-    AppendBytes(FieldMetadata_ActivateTriggers::kFieldId, data, size);
-  }
-  void add_activate_triggers(std::string value) {
-    static constexpr uint32_t field_id = FieldMetadata_ActivateTriggers::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kString>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_IncrementalStateConfig =
-    ::protozero::proto_utils::FieldMetadata<
-      21,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      TraceConfig_IncrementalStateConfig,
-      TraceConfig>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_IncrementalStateConfig kIncrementalStateConfig() { return {}; }
-  template <typename T = TraceConfig_IncrementalStateConfig> T* set_incremental_state_config() {
-    return BeginNestedMessage<T>(21);
-  }
-
-
-  using FieldMetadata_AllowUserBuildTracing =
-    ::protozero::proto_utils::FieldMetadata<
-      19,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kBool,
-      bool,
-      TraceConfig>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_AllowUserBuildTracing kAllowUserBuildTracing() { return {}; }
-  void set_allow_user_build_tracing(bool value) {
-    static constexpr uint32_t field_id = FieldMetadata_AllowUserBuildTracing::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kBool>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_UniqueSessionName =
-    ::protozero::proto_utils::FieldMetadata<
-      22,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kString,
-      std::string,
-      TraceConfig>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_UniqueSessionName kUniqueSessionName() { return {}; }
-  void set_unique_session_name(const char* data, size_t size) {
-    AppendBytes(FieldMetadata_UniqueSessionName::kFieldId, data, size);
-  }
-  void set_unique_session_name(std::string value) {
-    static constexpr uint32_t field_id = FieldMetadata_UniqueSessionName::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kString>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_CompressionType =
-    ::protozero::proto_utils::FieldMetadata<
-      24,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kEnum,
-      ::perfetto::protos::pbzero::TraceConfig_CompressionType,
-      TraceConfig>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_CompressionType kCompressionType() { return {}; }
-  void set_compression_type(::perfetto::protos::pbzero::TraceConfig_CompressionType value) {
-    static constexpr uint32_t field_id = FieldMetadata_CompressionType::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kEnum>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_IncidentReportConfig =
-    ::protozero::proto_utils::FieldMetadata<
-      25,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      TraceConfig_IncidentReportConfig,
-      TraceConfig>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_IncidentReportConfig kIncidentReportConfig() { return {}; }
-  template <typename T = TraceConfig_IncidentReportConfig> T* set_incident_report_config() {
-    return BeginNestedMessage<T>(25);
-  }
-
-
-  using FieldMetadata_StatsdLogging =
-    ::protozero::proto_utils::FieldMetadata<
-      31,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kEnum,
-      ::perfetto::protos::pbzero::TraceConfig_StatsdLogging,
-      TraceConfig>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_StatsdLogging kStatsdLogging() { return {}; }
-  void set_statsd_logging(::perfetto::protos::pbzero::TraceConfig_StatsdLogging value) {
-    static constexpr uint32_t field_id = FieldMetadata_StatsdLogging::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kEnum>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_TraceUuidMsb =
-    ::protozero::proto_utils::FieldMetadata<
-      27,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt64,
-      int64_t,
-      TraceConfig>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_TraceUuidMsb kTraceUuidMsb() { return {}; }
-  void set_trace_uuid_msb(int64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_TraceUuidMsb::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_TraceUuidLsb =
-    ::protozero::proto_utils::FieldMetadata<
-      28,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt64,
-      int64_t,
-      TraceConfig>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_TraceUuidLsb kTraceUuidLsb() { return {}; }
-  void set_trace_uuid_lsb(int64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_TraceUuidLsb::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_TraceFilter =
-    ::protozero::proto_utils::FieldMetadata<
-      32,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      TraceConfig_TraceFilter,
-      TraceConfig>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_TraceFilter kTraceFilter() { return {}; }
-  template <typename T = TraceConfig_TraceFilter> T* set_trace_filter() {
-    return BeginNestedMessage<T>(32);
-  }
-
-};
-
-class TraceConfig_TraceFilter_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/1, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  TraceConfig_TraceFilter_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit TraceConfig_TraceFilter_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit TraceConfig_TraceFilter_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_bytecode() const { return at<1>().valid(); }
-  ::protozero::ConstBytes bytecode() const { return at<1>().as_bytes(); }
-};
-
-class TraceConfig_TraceFilter : public ::protozero::Message {
- public:
-  using Decoder = TraceConfig_TraceFilter_Decoder;
-  enum : int32_t {
-    kBytecodeFieldNumber = 1,
-  };
-
-  using FieldMetadata_Bytecode =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kBytes,
-      std::string,
-      TraceConfig_TraceFilter>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Bytecode kBytecode() { return {}; }
-  void set_bytecode(const uint8_t* data, size_t size) {
-    AppendBytes(FieldMetadata_Bytecode::kFieldId, data, size);
-  }
-  void set_bytecode(std::string value) {
-    static constexpr uint32_t field_id = FieldMetadata_Bytecode::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kBytes>
-        ::Append(*this, field_id, value);
-  }
-};
-
-class TraceConfig_IncidentReportConfig_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/5, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  TraceConfig_IncidentReportConfig_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit TraceConfig_IncidentReportConfig_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit TraceConfig_IncidentReportConfig_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_destination_package() const { return at<1>().valid(); }
-  ::protozero::ConstChars destination_package() const { return at<1>().as_string(); }
-  bool has_destination_class() const { return at<2>().valid(); }
-  ::protozero::ConstChars destination_class() const { return at<2>().as_string(); }
-  bool has_privacy_level() const { return at<3>().valid(); }
-  int32_t privacy_level() const { return at<3>().as_int32(); }
-  bool has_skip_incidentd() const { return at<5>().valid(); }
-  bool skip_incidentd() const { return at<5>().as_bool(); }
-  bool has_skip_dropbox() const { return at<4>().valid(); }
-  bool skip_dropbox() const { return at<4>().as_bool(); }
-};
-
-class TraceConfig_IncidentReportConfig : public ::protozero::Message {
- public:
-  using Decoder = TraceConfig_IncidentReportConfig_Decoder;
-  enum : int32_t {
-    kDestinationPackageFieldNumber = 1,
-    kDestinationClassFieldNumber = 2,
-    kPrivacyLevelFieldNumber = 3,
-    kSkipIncidentdFieldNumber = 5,
-    kSkipDropboxFieldNumber = 4,
-  };
-
-  using FieldMetadata_DestinationPackage =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kString,
-      std::string,
-      TraceConfig_IncidentReportConfig>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_DestinationPackage kDestinationPackage() { return {}; }
-  void set_destination_package(const char* data, size_t size) {
-    AppendBytes(FieldMetadata_DestinationPackage::kFieldId, data, size);
-  }
-  void set_destination_package(std::string value) {
-    static constexpr uint32_t field_id = FieldMetadata_DestinationPackage::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kString>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_DestinationClass =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kString,
-      std::string,
-      TraceConfig_IncidentReportConfig>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_DestinationClass kDestinationClass() { return {}; }
-  void set_destination_class(const char* data, size_t size) {
-    AppendBytes(FieldMetadata_DestinationClass::kFieldId, data, size);
-  }
-  void set_destination_class(std::string value) {
-    static constexpr uint32_t field_id = FieldMetadata_DestinationClass::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kString>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_PrivacyLevel =
-    ::protozero::proto_utils::FieldMetadata<
-      3,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt32,
-      int32_t,
-      TraceConfig_IncidentReportConfig>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_PrivacyLevel kPrivacyLevel() { return {}; }
-  void set_privacy_level(int32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_PrivacyLevel::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_SkipIncidentd =
-    ::protozero::proto_utils::FieldMetadata<
-      5,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kBool,
-      bool,
-      TraceConfig_IncidentReportConfig>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_SkipIncidentd kSkipIncidentd() { return {}; }
-  void set_skip_incidentd(bool value) {
-    static constexpr uint32_t field_id = FieldMetadata_SkipIncidentd::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kBool>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_SkipDropbox =
-    ::protozero::proto_utils::FieldMetadata<
-      4,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kBool,
-      bool,
-      TraceConfig_IncidentReportConfig>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_SkipDropbox kSkipDropbox() { return {}; }
-  void set_skip_dropbox(bool value) {
-    static constexpr uint32_t field_id = FieldMetadata_SkipDropbox::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kBool>
-        ::Append(*this, field_id, value);
-  }
-};
-
-class TraceConfig_IncrementalStateConfig_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/1, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  TraceConfig_IncrementalStateConfig_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit TraceConfig_IncrementalStateConfig_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit TraceConfig_IncrementalStateConfig_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_clear_period_ms() const { return at<1>().valid(); }
-  uint32_t clear_period_ms() const { return at<1>().as_uint32(); }
-};
-
-class TraceConfig_IncrementalStateConfig : public ::protozero::Message {
- public:
-  using Decoder = TraceConfig_IncrementalStateConfig_Decoder;
-  enum : int32_t {
-    kClearPeriodMsFieldNumber = 1,
-  };
-
-  using FieldMetadata_ClearPeriodMs =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      TraceConfig_IncrementalStateConfig>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_ClearPeriodMs kClearPeriodMs() { return {}; }
-  void set_clear_period_ms(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_ClearPeriodMs::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-};
-
-class TraceConfig_TriggerConfig_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/3, /*HAS_NONPACKED_REPEATED_FIELDS=*/true> {
- public:
-  TraceConfig_TriggerConfig_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit TraceConfig_TriggerConfig_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit TraceConfig_TriggerConfig_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_trigger_mode() const { return at<1>().valid(); }
-  int32_t trigger_mode() const { return at<1>().as_int32(); }
-  bool has_triggers() const { return at<2>().valid(); }
-  ::protozero::RepeatedFieldIterator<::protozero::ConstBytes> triggers() const { return GetRepeated<::protozero::ConstBytes>(2); }
-  bool has_trigger_timeout_ms() const { return at<3>().valid(); }
-  uint32_t trigger_timeout_ms() const { return at<3>().as_uint32(); }
-};
-
-class TraceConfig_TriggerConfig : public ::protozero::Message {
- public:
-  using Decoder = TraceConfig_TriggerConfig_Decoder;
-  enum : int32_t {
-    kTriggerModeFieldNumber = 1,
-    kTriggersFieldNumber = 2,
-    kTriggerTimeoutMsFieldNumber = 3,
-  };
-  using Trigger = ::perfetto::protos::pbzero::TraceConfig_TriggerConfig_Trigger;
-  using TriggerMode = ::perfetto::protos::pbzero::TraceConfig_TriggerConfig_TriggerMode;
-  static const TriggerMode UNSPECIFIED = TraceConfig_TriggerConfig_TriggerMode_UNSPECIFIED;
-  static const TriggerMode START_TRACING = TraceConfig_TriggerConfig_TriggerMode_START_TRACING;
-  static const TriggerMode STOP_TRACING = TraceConfig_TriggerConfig_TriggerMode_STOP_TRACING;
-
-  using FieldMetadata_TriggerMode =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kEnum,
-      ::perfetto::protos::pbzero::TraceConfig_TriggerConfig_TriggerMode,
-      TraceConfig_TriggerConfig>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_TriggerMode kTriggerMode() { return {}; }
-  void set_trigger_mode(::perfetto::protos::pbzero::TraceConfig_TriggerConfig_TriggerMode value) {
-    static constexpr uint32_t field_id = FieldMetadata_TriggerMode::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kEnum>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Triggers =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kRepeatedNotPacked,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      TraceConfig_TriggerConfig_Trigger,
-      TraceConfig_TriggerConfig>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Triggers kTriggers() { return {}; }
-  template <typename T = TraceConfig_TriggerConfig_Trigger> T* add_triggers() {
-    return BeginNestedMessage<T>(2);
-  }
-
-
-  using FieldMetadata_TriggerTimeoutMs =
-    ::protozero::proto_utils::FieldMetadata<
-      3,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      TraceConfig_TriggerConfig>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_TriggerTimeoutMs kTriggerTimeoutMs() { return {}; }
-  void set_trigger_timeout_ms(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_TriggerTimeoutMs::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-};
-
-class TraceConfig_TriggerConfig_Trigger_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/5, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  TraceConfig_TriggerConfig_Trigger_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit TraceConfig_TriggerConfig_Trigger_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit TraceConfig_TriggerConfig_Trigger_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_name() const { return at<1>().valid(); }
-  ::protozero::ConstChars name() const { return at<1>().as_string(); }
-  bool has_producer_name_regex() const { return at<2>().valid(); }
-  ::protozero::ConstChars producer_name_regex() const { return at<2>().as_string(); }
-  bool has_stop_delay_ms() const { return at<3>().valid(); }
-  uint32_t stop_delay_ms() const { return at<3>().as_uint32(); }
-  bool has_max_per_24_h() const { return at<4>().valid(); }
-  uint32_t max_per_24_h() const { return at<4>().as_uint32(); }
-  bool has_skip_probability() const { return at<5>().valid(); }
-  double skip_probability() const { return at<5>().as_double(); }
-};
-
-class TraceConfig_TriggerConfig_Trigger : public ::protozero::Message {
- public:
-  using Decoder = TraceConfig_TriggerConfig_Trigger_Decoder;
-  enum : int32_t {
-    kNameFieldNumber = 1,
-    kProducerNameRegexFieldNumber = 2,
-    kStopDelayMsFieldNumber = 3,
-    kMaxPer24HFieldNumber = 4,
-    kSkipProbabilityFieldNumber = 5,
-  };
-
-  using FieldMetadata_Name =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kString,
-      std::string,
-      TraceConfig_TriggerConfig_Trigger>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Name kName() { return {}; }
-  void set_name(const char* data, size_t size) {
-    AppendBytes(FieldMetadata_Name::kFieldId, data, size);
-  }
-  void set_name(std::string value) {
-    static constexpr uint32_t field_id = FieldMetadata_Name::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kString>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_ProducerNameRegex =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kString,
-      std::string,
-      TraceConfig_TriggerConfig_Trigger>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_ProducerNameRegex kProducerNameRegex() { return {}; }
-  void set_producer_name_regex(const char* data, size_t size) {
-    AppendBytes(FieldMetadata_ProducerNameRegex::kFieldId, data, size);
-  }
-  void set_producer_name_regex(std::string value) {
-    static constexpr uint32_t field_id = FieldMetadata_ProducerNameRegex::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kString>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_StopDelayMs =
-    ::protozero::proto_utils::FieldMetadata<
-      3,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      TraceConfig_TriggerConfig_Trigger>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_StopDelayMs kStopDelayMs() { return {}; }
-  void set_stop_delay_ms(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_StopDelayMs::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_MaxPer24H =
-    ::protozero::proto_utils::FieldMetadata<
-      4,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      TraceConfig_TriggerConfig_Trigger>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_MaxPer24H kMaxPer24H() { return {}; }
-  void set_max_per_24_h(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_MaxPer24H::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_SkipProbability =
-    ::protozero::proto_utils::FieldMetadata<
-      5,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kDouble,
-      double,
-      TraceConfig_TriggerConfig_Trigger>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_SkipProbability kSkipProbability() { return {}; }
-  void set_skip_probability(double value) {
-    static constexpr uint32_t field_id = FieldMetadata_SkipProbability::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kDouble>
-        ::Append(*this, field_id, value);
-  }
-};
-
-class TraceConfig_GuardrailOverrides_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/1, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  TraceConfig_GuardrailOverrides_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit TraceConfig_GuardrailOverrides_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit TraceConfig_GuardrailOverrides_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_max_upload_per_day_bytes() const { return at<1>().valid(); }
-  uint64_t max_upload_per_day_bytes() const { return at<1>().as_uint64(); }
-};
-
-class TraceConfig_GuardrailOverrides : public ::protozero::Message {
- public:
-  using Decoder = TraceConfig_GuardrailOverrides_Decoder;
-  enum : int32_t {
-    kMaxUploadPerDayBytesFieldNumber = 1,
-  };
-
-  using FieldMetadata_MaxUploadPerDayBytes =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      TraceConfig_GuardrailOverrides>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_MaxUploadPerDayBytes kMaxUploadPerDayBytes() { return {}; }
-  void set_max_upload_per_day_bytes(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_MaxUploadPerDayBytes::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-};
-
-class TraceConfig_StatsdMetadata_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/4, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  TraceConfig_StatsdMetadata_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit TraceConfig_StatsdMetadata_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit TraceConfig_StatsdMetadata_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_triggering_alert_id() const { return at<1>().valid(); }
-  int64_t triggering_alert_id() const { return at<1>().as_int64(); }
-  bool has_triggering_config_uid() const { return at<2>().valid(); }
-  int32_t triggering_config_uid() const { return at<2>().as_int32(); }
-  bool has_triggering_config_id() const { return at<3>().valid(); }
-  int64_t triggering_config_id() const { return at<3>().as_int64(); }
-  bool has_triggering_subscription_id() const { return at<4>().valid(); }
-  int64_t triggering_subscription_id() const { return at<4>().as_int64(); }
-};
-
-class TraceConfig_StatsdMetadata : public ::protozero::Message {
- public:
-  using Decoder = TraceConfig_StatsdMetadata_Decoder;
-  enum : int32_t {
-    kTriggeringAlertIdFieldNumber = 1,
-    kTriggeringConfigUidFieldNumber = 2,
-    kTriggeringConfigIdFieldNumber = 3,
-    kTriggeringSubscriptionIdFieldNumber = 4,
-  };
-
-  using FieldMetadata_TriggeringAlertId =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt64,
-      int64_t,
-      TraceConfig_StatsdMetadata>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_TriggeringAlertId kTriggeringAlertId() { return {}; }
-  void set_triggering_alert_id(int64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_TriggeringAlertId::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_TriggeringConfigUid =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt32,
-      int32_t,
-      TraceConfig_StatsdMetadata>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_TriggeringConfigUid kTriggeringConfigUid() { return {}; }
-  void set_triggering_config_uid(int32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_TriggeringConfigUid::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_TriggeringConfigId =
-    ::protozero::proto_utils::FieldMetadata<
-      3,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt64,
-      int64_t,
-      TraceConfig_StatsdMetadata>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_TriggeringConfigId kTriggeringConfigId() { return {}; }
-  void set_triggering_config_id(int64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_TriggeringConfigId::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_TriggeringSubscriptionId =
-    ::protozero::proto_utils::FieldMetadata<
-      4,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt64,
-      int64_t,
-      TraceConfig_StatsdMetadata>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_TriggeringSubscriptionId kTriggeringSubscriptionId() { return {}; }
-  void set_triggering_subscription_id(int64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_TriggeringSubscriptionId::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt64>
-        ::Append(*this, field_id, value);
-  }
-};
-
-class TraceConfig_ProducerConfig_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/3, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  TraceConfig_ProducerConfig_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit TraceConfig_ProducerConfig_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit TraceConfig_ProducerConfig_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_producer_name() const { return at<1>().valid(); }
-  ::protozero::ConstChars producer_name() const { return at<1>().as_string(); }
-  bool has_shm_size_kb() const { return at<2>().valid(); }
-  uint32_t shm_size_kb() const { return at<2>().as_uint32(); }
-  bool has_page_size_kb() const { return at<3>().valid(); }
-  uint32_t page_size_kb() const { return at<3>().as_uint32(); }
-};
-
-class TraceConfig_ProducerConfig : public ::protozero::Message {
- public:
-  using Decoder = TraceConfig_ProducerConfig_Decoder;
-  enum : int32_t {
-    kProducerNameFieldNumber = 1,
-    kShmSizeKbFieldNumber = 2,
-    kPageSizeKbFieldNumber = 3,
-  };
-
-  using FieldMetadata_ProducerName =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kString,
-      std::string,
-      TraceConfig_ProducerConfig>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_ProducerName kProducerName() { return {}; }
-  void set_producer_name(const char* data, size_t size) {
-    AppendBytes(FieldMetadata_ProducerName::kFieldId, data, size);
-  }
-  void set_producer_name(std::string value) {
-    static constexpr uint32_t field_id = FieldMetadata_ProducerName::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kString>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_ShmSizeKb =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      TraceConfig_ProducerConfig>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_ShmSizeKb kShmSizeKb() { return {}; }
-  void set_shm_size_kb(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_ShmSizeKb::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_PageSizeKb =
-    ::protozero::proto_utils::FieldMetadata<
-      3,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      TraceConfig_ProducerConfig>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_PageSizeKb kPageSizeKb() { return {}; }
-  void set_page_size_kb(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_PageSizeKb::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-};
-
-class TraceConfig_BuiltinDataSource_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/7, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  TraceConfig_BuiltinDataSource_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit TraceConfig_BuiltinDataSource_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit TraceConfig_BuiltinDataSource_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_disable_clock_snapshotting() const { return at<1>().valid(); }
-  bool disable_clock_snapshotting() const { return at<1>().as_bool(); }
-  bool has_disable_trace_config() const { return at<2>().valid(); }
-  bool disable_trace_config() const { return at<2>().as_bool(); }
-  bool has_disable_system_info() const { return at<3>().valid(); }
-  bool disable_system_info() const { return at<3>().as_bool(); }
-  bool has_disable_service_events() const { return at<4>().valid(); }
-  bool disable_service_events() const { return at<4>().as_bool(); }
-  bool has_primary_trace_clock() const { return at<5>().valid(); }
-  int32_t primary_trace_clock() const { return at<5>().as_int32(); }
-  bool has_snapshot_interval_ms() const { return at<6>().valid(); }
-  uint32_t snapshot_interval_ms() const { return at<6>().as_uint32(); }
-  bool has_prefer_suspend_clock_for_snapshot() const { return at<7>().valid(); }
-  bool prefer_suspend_clock_for_snapshot() const { return at<7>().as_bool(); }
-};
-
-class TraceConfig_BuiltinDataSource : public ::protozero::Message {
- public:
-  using Decoder = TraceConfig_BuiltinDataSource_Decoder;
-  enum : int32_t {
-    kDisableClockSnapshottingFieldNumber = 1,
-    kDisableTraceConfigFieldNumber = 2,
-    kDisableSystemInfoFieldNumber = 3,
-    kDisableServiceEventsFieldNumber = 4,
-    kPrimaryTraceClockFieldNumber = 5,
-    kSnapshotIntervalMsFieldNumber = 6,
-    kPreferSuspendClockForSnapshotFieldNumber = 7,
-  };
-
-  using FieldMetadata_DisableClockSnapshotting =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kBool,
-      bool,
-      TraceConfig_BuiltinDataSource>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_DisableClockSnapshotting kDisableClockSnapshotting() { return {}; }
-  void set_disable_clock_snapshotting(bool value) {
-    static constexpr uint32_t field_id = FieldMetadata_DisableClockSnapshotting::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kBool>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_DisableTraceConfig =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kBool,
-      bool,
-      TraceConfig_BuiltinDataSource>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_DisableTraceConfig kDisableTraceConfig() { return {}; }
-  void set_disable_trace_config(bool value) {
-    static constexpr uint32_t field_id = FieldMetadata_DisableTraceConfig::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kBool>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_DisableSystemInfo =
-    ::protozero::proto_utils::FieldMetadata<
-      3,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kBool,
-      bool,
-      TraceConfig_BuiltinDataSource>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_DisableSystemInfo kDisableSystemInfo() { return {}; }
-  void set_disable_system_info(bool value) {
-    static constexpr uint32_t field_id = FieldMetadata_DisableSystemInfo::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kBool>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_DisableServiceEvents =
-    ::protozero::proto_utils::FieldMetadata<
-      4,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kBool,
-      bool,
-      TraceConfig_BuiltinDataSource>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_DisableServiceEvents kDisableServiceEvents() { return {}; }
-  void set_disable_service_events(bool value) {
-    static constexpr uint32_t field_id = FieldMetadata_DisableServiceEvents::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kBool>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_PrimaryTraceClock =
-    ::protozero::proto_utils::FieldMetadata<
-      5,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kEnum,
-      ::perfetto::protos::pbzero::BuiltinClock,
-      TraceConfig_BuiltinDataSource>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_PrimaryTraceClock kPrimaryTraceClock() { return {}; }
-  void set_primary_trace_clock(::perfetto::protos::pbzero::BuiltinClock value) {
-    static constexpr uint32_t field_id = FieldMetadata_PrimaryTraceClock::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kEnum>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_SnapshotIntervalMs =
-    ::protozero::proto_utils::FieldMetadata<
-      6,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      TraceConfig_BuiltinDataSource>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_SnapshotIntervalMs kSnapshotIntervalMs() { return {}; }
-  void set_snapshot_interval_ms(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_SnapshotIntervalMs::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_PreferSuspendClockForSnapshot =
-    ::protozero::proto_utils::FieldMetadata<
-      7,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kBool,
-      bool,
-      TraceConfig_BuiltinDataSource>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_PreferSuspendClockForSnapshot kPreferSuspendClockForSnapshot() { return {}; }
-  void set_prefer_suspend_clock_for_snapshot(bool value) {
-    static constexpr uint32_t field_id = FieldMetadata_PreferSuspendClockForSnapshot::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kBool>
-        ::Append(*this, field_id, value);
-  }
-};
-
-class TraceConfig_DataSource_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/3, /*HAS_NONPACKED_REPEATED_FIELDS=*/true> {
- public:
-  TraceConfig_DataSource_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit TraceConfig_DataSource_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit TraceConfig_DataSource_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_config() const { return at<1>().valid(); }
-  ::protozero::ConstBytes config() const { return at<1>().as_bytes(); }
-  bool has_producer_name_filter() const { return at<2>().valid(); }
-  ::protozero::RepeatedFieldIterator<::protozero::ConstChars> producer_name_filter() const { return GetRepeated<::protozero::ConstChars>(2); }
-  bool has_producer_name_regex_filter() const { return at<3>().valid(); }
-  ::protozero::RepeatedFieldIterator<::protozero::ConstChars> producer_name_regex_filter() const { return GetRepeated<::protozero::ConstChars>(3); }
-};
-
-class TraceConfig_DataSource : public ::protozero::Message {
- public:
-  using Decoder = TraceConfig_DataSource_Decoder;
-  enum : int32_t {
-    kConfigFieldNumber = 1,
-    kProducerNameFilterFieldNumber = 2,
-    kProducerNameRegexFilterFieldNumber = 3,
-  };
-
-  using FieldMetadata_Config =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      DataSourceConfig,
-      TraceConfig_DataSource>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Config kConfig() { return {}; }
-  template <typename T = DataSourceConfig> T* set_config() {
-    return BeginNestedMessage<T>(1);
-  }
-
-
-  using FieldMetadata_ProducerNameFilter =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kRepeatedNotPacked,
-      ::protozero::proto_utils::ProtoSchemaType::kString,
-      std::string,
-      TraceConfig_DataSource>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_ProducerNameFilter kProducerNameFilter() { return {}; }
-  void add_producer_name_filter(const char* data, size_t size) {
-    AppendBytes(FieldMetadata_ProducerNameFilter::kFieldId, data, size);
-  }
-  void add_producer_name_filter(std::string value) {
-    static constexpr uint32_t field_id = FieldMetadata_ProducerNameFilter::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kString>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_ProducerNameRegexFilter =
-    ::protozero::proto_utils::FieldMetadata<
-      3,
-      ::protozero::proto_utils::RepetitionType::kRepeatedNotPacked,
-      ::protozero::proto_utils::ProtoSchemaType::kString,
-      std::string,
-      TraceConfig_DataSource>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_ProducerNameRegexFilter kProducerNameRegexFilter() { return {}; }
-  void add_producer_name_regex_filter(const char* data, size_t size) {
-    AppendBytes(FieldMetadata_ProducerNameRegexFilter::kFieldId, data, size);
-  }
-  void add_producer_name_regex_filter(std::string value) {
-    static constexpr uint32_t field_id = FieldMetadata_ProducerNameRegexFilter::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kString>
-        ::Append(*this, field_id, value);
-  }
-};
-
-class TraceConfig_BufferConfig_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/4, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  TraceConfig_BufferConfig_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit TraceConfig_BufferConfig_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit TraceConfig_BufferConfig_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_size_kb() const { return at<1>().valid(); }
-  uint32_t size_kb() const { return at<1>().as_uint32(); }
-  bool has_fill_policy() const { return at<4>().valid(); }
-  int32_t fill_policy() const { return at<4>().as_int32(); }
-};
-
-class TraceConfig_BufferConfig : public ::protozero::Message {
- public:
-  using Decoder = TraceConfig_BufferConfig_Decoder;
-  enum : int32_t {
-    kSizeKbFieldNumber = 1,
-    kFillPolicyFieldNumber = 4,
-  };
-  using FillPolicy = ::perfetto::protos::pbzero::TraceConfig_BufferConfig_FillPolicy;
-  static const FillPolicy UNSPECIFIED = TraceConfig_BufferConfig_FillPolicy_UNSPECIFIED;
-  static const FillPolicy RING_BUFFER = TraceConfig_BufferConfig_FillPolicy_RING_BUFFER;
-  static const FillPolicy DISCARD = TraceConfig_BufferConfig_FillPolicy_DISCARD;
-
-  using FieldMetadata_SizeKb =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      TraceConfig_BufferConfig>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_SizeKb kSizeKb() { return {}; }
-  void set_size_kb(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_SizeKb::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_FillPolicy =
-    ::protozero::proto_utils::FieldMetadata<
-      4,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kEnum,
-      ::perfetto::protos::pbzero::TraceConfig_BufferConfig_FillPolicy,
-      TraceConfig_BufferConfig>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_FillPolicy kFillPolicy() { return {}; }
-  void set_fill_policy(::perfetto::protos::pbzero::TraceConfig_BufferConfig_FillPolicy value) {
-    static constexpr uint32_t field_id = FieldMetadata_FillPolicy::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kEnum>
-        ::Append(*this, field_id, value);
-  }
-};
-
-} // Namespace.
-} // Namespace.
-} // Namespace.
-#endif  // Include guard.
-// gen_amalgamated begin header: gen/protos/perfetto/trace/clock_snapshot.pbzero.h
-// Autogenerated by the ProtoZero compiler plugin. DO NOT EDIT.
-
-#ifndef PERFETTO_PROTOS_PROTOS_PERFETTO_TRACE_CLOCK_SNAPSHOT_PROTO_H_
-#define PERFETTO_PROTOS_PROTOS_PERFETTO_TRACE_CLOCK_SNAPSHOT_PROTO_H_
-
-#include <stddef.h>
-#include <stdint.h>
-
-// gen_amalgamated expanded: #include "perfetto/protozero/field_writer.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/message.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/packed_repeated_fields.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/proto_decoder.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/proto_utils.h"
-
-namespace perfetto {
-namespace protos {
-namespace pbzero {
-
-class ClockSnapshot_Clock;
-enum BuiltinClock : int32_t;
-
-enum ClockSnapshot_Clock_BuiltinClocks : int32_t {
-  ClockSnapshot_Clock_BuiltinClocks_UNKNOWN = 0,
-  ClockSnapshot_Clock_BuiltinClocks_REALTIME = 1,
-  ClockSnapshot_Clock_BuiltinClocks_REALTIME_COARSE = 2,
-  ClockSnapshot_Clock_BuiltinClocks_MONOTONIC = 3,
-  ClockSnapshot_Clock_BuiltinClocks_MONOTONIC_COARSE = 4,
-  ClockSnapshot_Clock_BuiltinClocks_MONOTONIC_RAW = 5,
-  ClockSnapshot_Clock_BuiltinClocks_BOOTTIME = 6,
-  ClockSnapshot_Clock_BuiltinClocks_BUILTIN_CLOCK_MAX_ID = 63,
-};
-
-const ClockSnapshot_Clock_BuiltinClocks ClockSnapshot_Clock_BuiltinClocks_MIN = ClockSnapshot_Clock_BuiltinClocks_UNKNOWN;
-const ClockSnapshot_Clock_BuiltinClocks ClockSnapshot_Clock_BuiltinClocks_MAX = ClockSnapshot_Clock_BuiltinClocks_BUILTIN_CLOCK_MAX_ID;
-
-class ClockSnapshot_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/2, /*HAS_NONPACKED_REPEATED_FIELDS=*/true> {
- public:
-  ClockSnapshot_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit ClockSnapshot_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit ClockSnapshot_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_clocks() const { return at<1>().valid(); }
-  ::protozero::RepeatedFieldIterator<::protozero::ConstBytes> clocks() const { return GetRepeated<::protozero::ConstBytes>(1); }
-  bool has_primary_trace_clock() const { return at<2>().valid(); }
-  int32_t primary_trace_clock() const { return at<2>().as_int32(); }
-};
-
-class ClockSnapshot : public ::protozero::Message {
- public:
-  using Decoder = ClockSnapshot_Decoder;
-  enum : int32_t {
-    kClocksFieldNumber = 1,
-    kPrimaryTraceClockFieldNumber = 2,
-  };
-  using Clock = ::perfetto::protos::pbzero::ClockSnapshot_Clock;
-
-  using FieldMetadata_Clocks =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kRepeatedNotPacked,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      ClockSnapshot_Clock,
-      ClockSnapshot>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Clocks kClocks() { return {}; }
-  template <typename T = ClockSnapshot_Clock> T* add_clocks() {
-    return BeginNestedMessage<T>(1);
-  }
-
-
-  using FieldMetadata_PrimaryTraceClock =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kEnum,
-      ::perfetto::protos::pbzero::BuiltinClock,
-      ClockSnapshot>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_PrimaryTraceClock kPrimaryTraceClock() { return {}; }
-  void set_primary_trace_clock(::perfetto::protos::pbzero::BuiltinClock value) {
-    static constexpr uint32_t field_id = FieldMetadata_PrimaryTraceClock::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kEnum>
-        ::Append(*this, field_id, value);
-  }
-};
-
-class ClockSnapshot_Clock_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/4, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  ClockSnapshot_Clock_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit ClockSnapshot_Clock_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit ClockSnapshot_Clock_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_clock_id() const { return at<1>().valid(); }
-  uint32_t clock_id() const { return at<1>().as_uint32(); }
-  bool has_timestamp() const { return at<2>().valid(); }
-  uint64_t timestamp() const { return at<2>().as_uint64(); }
-  bool has_is_incremental() const { return at<3>().valid(); }
-  bool is_incremental() const { return at<3>().as_bool(); }
-  bool has_unit_multiplier_ns() const { return at<4>().valid(); }
-  uint64_t unit_multiplier_ns() const { return at<4>().as_uint64(); }
-};
-
-class ClockSnapshot_Clock : public ::protozero::Message {
- public:
-  using Decoder = ClockSnapshot_Clock_Decoder;
-  enum : int32_t {
-    kClockIdFieldNumber = 1,
-    kTimestampFieldNumber = 2,
-    kIsIncrementalFieldNumber = 3,
-    kUnitMultiplierNsFieldNumber = 4,
-  };
-  using BuiltinClocks = ::perfetto::protos::pbzero::ClockSnapshot_Clock_BuiltinClocks;
-  static const BuiltinClocks UNKNOWN = ClockSnapshot_Clock_BuiltinClocks_UNKNOWN;
-  static const BuiltinClocks REALTIME = ClockSnapshot_Clock_BuiltinClocks_REALTIME;
-  static const BuiltinClocks REALTIME_COARSE = ClockSnapshot_Clock_BuiltinClocks_REALTIME_COARSE;
-  static const BuiltinClocks MONOTONIC = ClockSnapshot_Clock_BuiltinClocks_MONOTONIC;
-  static const BuiltinClocks MONOTONIC_COARSE = ClockSnapshot_Clock_BuiltinClocks_MONOTONIC_COARSE;
-  static const BuiltinClocks MONOTONIC_RAW = ClockSnapshot_Clock_BuiltinClocks_MONOTONIC_RAW;
-  static const BuiltinClocks BOOTTIME = ClockSnapshot_Clock_BuiltinClocks_BOOTTIME;
-  static const BuiltinClocks BUILTIN_CLOCK_MAX_ID = ClockSnapshot_Clock_BuiltinClocks_BUILTIN_CLOCK_MAX_ID;
-
-  using FieldMetadata_ClockId =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      ClockSnapshot_Clock>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_ClockId kClockId() { return {}; }
-  void set_clock_id(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_ClockId::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Timestamp =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      ClockSnapshot_Clock>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Timestamp kTimestamp() { return {}; }
-  void set_timestamp(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Timestamp::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_IsIncremental =
-    ::protozero::proto_utils::FieldMetadata<
-      3,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kBool,
-      bool,
-      ClockSnapshot_Clock>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_IsIncremental kIsIncremental() { return {}; }
-  void set_is_incremental(bool value) {
-    static constexpr uint32_t field_id = FieldMetadata_IsIncremental::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kBool>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_UnitMultiplierNs =
-    ::protozero::proto_utils::FieldMetadata<
-      4,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      ClockSnapshot_Clock>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_UnitMultiplierNs kUnitMultiplierNs() { return {}; }
-  void set_unit_multiplier_ns(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_UnitMultiplierNs::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-};
-
-} // Namespace.
-} // Namespace.
-} // Namespace.
-#endif  // Include guard.
-// gen_amalgamated begin header: gen/protos/perfetto/trace/trigger.pbzero.h
-// Autogenerated by the ProtoZero compiler plugin. DO NOT EDIT.
-
-#ifndef PERFETTO_PROTOS_PROTOS_PERFETTO_TRACE_TRIGGER_PROTO_H_
-#define PERFETTO_PROTOS_PROTOS_PERFETTO_TRACE_TRIGGER_PROTO_H_
-
-#include <stddef.h>
-#include <stdint.h>
-
-// gen_amalgamated expanded: #include "perfetto/protozero/field_writer.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/message.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/packed_repeated_fields.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/proto_decoder.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/proto_utils.h"
-
-namespace perfetto {
-namespace protos {
-namespace pbzero {
-
-
-class Trigger_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/3, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  Trigger_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit Trigger_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit Trigger_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_trigger_name() const { return at<1>().valid(); }
-  ::protozero::ConstChars trigger_name() const { return at<1>().as_string(); }
-  bool has_producer_name() const { return at<2>().valid(); }
-  ::protozero::ConstChars producer_name() const { return at<2>().as_string(); }
-  bool has_trusted_producer_uid() const { return at<3>().valid(); }
-  int32_t trusted_producer_uid() const { return at<3>().as_int32(); }
-};
-
-class Trigger : public ::protozero::Message {
- public:
-  using Decoder = Trigger_Decoder;
-  enum : int32_t {
-    kTriggerNameFieldNumber = 1,
-    kProducerNameFieldNumber = 2,
-    kTrustedProducerUidFieldNumber = 3,
-  };
-
-  using FieldMetadata_TriggerName =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kString,
-      std::string,
-      Trigger>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_TriggerName kTriggerName() { return {}; }
-  void set_trigger_name(const char* data, size_t size) {
-    AppendBytes(FieldMetadata_TriggerName::kFieldId, data, size);
-  }
-  void set_trigger_name(std::string value) {
-    static constexpr uint32_t field_id = FieldMetadata_TriggerName::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kString>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_ProducerName =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kString,
-      std::string,
-      Trigger>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_ProducerName kProducerName() { return {}; }
-  void set_producer_name(const char* data, size_t size) {
-    AppendBytes(FieldMetadata_ProducerName::kFieldId, data, size);
-  }
-  void set_producer_name(std::string value) {
-    static constexpr uint32_t field_id = FieldMetadata_ProducerName::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kString>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_TrustedProducerUid =
-    ::protozero::proto_utils::FieldMetadata<
-      3,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt32,
-      int32_t,
-      Trigger>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_TrustedProducerUid kTrustedProducerUid() { return {}; }
-  void set_trusted_producer_uid(int32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_TrustedProducerUid::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt32>
-        ::Append(*this, field_id, value);
-  }
-};
-
-} // Namespace.
-} // Namespace.
-} // Namespace.
-#endif  // Include guard.
-// gen_amalgamated begin header: gen/protos/perfetto/trace/system_info.pbzero.h
-// Autogenerated by the ProtoZero compiler plugin. DO NOT EDIT.
-
-#ifndef PERFETTO_PROTOS_PROTOS_PERFETTO_TRACE_SYSTEM_INFO_PROTO_H_
-#define PERFETTO_PROTOS_PROTOS_PERFETTO_TRACE_SYSTEM_INFO_PROTO_H_
-
-#include <stddef.h>
-#include <stdint.h>
-
-// gen_amalgamated expanded: #include "perfetto/protozero/field_writer.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/message.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/packed_repeated_fields.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/proto_decoder.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/proto_utils.h"
-
-namespace perfetto {
-namespace protos {
-namespace pbzero {
-
-class Utsname;
-
-class SystemInfo_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/4, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  SystemInfo_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit SystemInfo_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit SystemInfo_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_utsname() const { return at<1>().valid(); }
-  ::protozero::ConstBytes utsname() const { return at<1>().as_bytes(); }
-  bool has_android_build_fingerprint() const { return at<2>().valid(); }
-  ::protozero::ConstChars android_build_fingerprint() const { return at<2>().as_string(); }
-  bool has_hz() const { return at<3>().valid(); }
-  int64_t hz() const { return at<3>().as_int64(); }
-  bool has_tracing_service_version() const { return at<4>().valid(); }
-  ::protozero::ConstChars tracing_service_version() const { return at<4>().as_string(); }
-};
-
-class SystemInfo : public ::protozero::Message {
- public:
-  using Decoder = SystemInfo_Decoder;
-  enum : int32_t {
-    kUtsnameFieldNumber = 1,
-    kAndroidBuildFingerprintFieldNumber = 2,
-    kHzFieldNumber = 3,
-    kTracingServiceVersionFieldNumber = 4,
-  };
-
-  using FieldMetadata_Utsname =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      Utsname,
-      SystemInfo>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Utsname kUtsname() { return {}; }
-  template <typename T = Utsname> T* set_utsname() {
-    return BeginNestedMessage<T>(1);
-  }
-
-
-  using FieldMetadata_AndroidBuildFingerprint =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kString,
-      std::string,
-      SystemInfo>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_AndroidBuildFingerprint kAndroidBuildFingerprint() { return {}; }
-  void set_android_build_fingerprint(const char* data, size_t size) {
-    AppendBytes(FieldMetadata_AndroidBuildFingerprint::kFieldId, data, size);
-  }
-  void set_android_build_fingerprint(std::string value) {
-    static constexpr uint32_t field_id = FieldMetadata_AndroidBuildFingerprint::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kString>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Hz =
-    ::protozero::proto_utils::FieldMetadata<
-      3,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt64,
-      int64_t,
-      SystemInfo>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Hz kHz() { return {}; }
-  void set_hz(int64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Hz::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_TracingServiceVersion =
-    ::protozero::proto_utils::FieldMetadata<
-      4,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kString,
-      std::string,
-      SystemInfo>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_TracingServiceVersion kTracingServiceVersion() { return {}; }
-  void set_tracing_service_version(const char* data, size_t size) {
-    AppendBytes(FieldMetadata_TracingServiceVersion::kFieldId, data, size);
-  }
-  void set_tracing_service_version(std::string value) {
-    static constexpr uint32_t field_id = FieldMetadata_TracingServiceVersion::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kString>
-        ::Append(*this, field_id, value);
-  }
-};
-
-class Utsname_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/4, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  Utsname_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit Utsname_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit Utsname_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_sysname() const { return at<1>().valid(); }
-  ::protozero::ConstChars sysname() const { return at<1>().as_string(); }
-  bool has_version() const { return at<2>().valid(); }
-  ::protozero::ConstChars version() const { return at<2>().as_string(); }
-  bool has_release() const { return at<3>().valid(); }
-  ::protozero::ConstChars release() const { return at<3>().as_string(); }
-  bool has_machine() const { return at<4>().valid(); }
-  ::protozero::ConstChars machine() const { return at<4>().as_string(); }
-};
-
-class Utsname : public ::protozero::Message {
- public:
-  using Decoder = Utsname_Decoder;
-  enum : int32_t {
-    kSysnameFieldNumber = 1,
-    kVersionFieldNumber = 2,
-    kReleaseFieldNumber = 3,
-    kMachineFieldNumber = 4,
-  };
-
-  using FieldMetadata_Sysname =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kString,
-      std::string,
-      Utsname>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Sysname kSysname() { return {}; }
-  void set_sysname(const char* data, size_t size) {
-    AppendBytes(FieldMetadata_Sysname::kFieldId, data, size);
-  }
-  void set_sysname(std::string value) {
-    static constexpr uint32_t field_id = FieldMetadata_Sysname::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kString>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Version =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kString,
-      std::string,
-      Utsname>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Version kVersion() { return {}; }
-  void set_version(const char* data, size_t size) {
-    AppendBytes(FieldMetadata_Version::kFieldId, data, size);
-  }
-  void set_version(std::string value) {
-    static constexpr uint32_t field_id = FieldMetadata_Version::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kString>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Release =
-    ::protozero::proto_utils::FieldMetadata<
-      3,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kString,
-      std::string,
-      Utsname>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Release kRelease() { return {}; }
-  void set_release(const char* data, size_t size) {
-    AppendBytes(FieldMetadata_Release::kFieldId, data, size);
-  }
-  void set_release(std::string value) {
-    static constexpr uint32_t field_id = FieldMetadata_Release::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kString>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Machine =
-    ::protozero::proto_utils::FieldMetadata<
-      4,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kString,
-      std::string,
-      Utsname>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Machine kMachine() { return {}; }
-  void set_machine(const char* data, size_t size) {
-    AppendBytes(FieldMetadata_Machine::kFieldId, data, size);
-  }
-  void set_machine(std::string value) {
-    static constexpr uint32_t field_id = FieldMetadata_Machine::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kString>
-        ::Append(*this, field_id, value);
-  }
-};
-
-} // Namespace.
-} // Namespace.
-} // Namespace.
-#endif  // Include guard.
-// gen_amalgamated begin header: gen/protos/perfetto/trace/android/android_log.pbzero.h
-// Autogenerated by the ProtoZero compiler plugin. DO NOT EDIT.
-
-#ifndef PERFETTO_PROTOS_PROTOS_PERFETTO_TRACE_ANDROID_ANDROID_LOG_PROTO_H_
-#define PERFETTO_PROTOS_PROTOS_PERFETTO_TRACE_ANDROID_ANDROID_LOG_PROTO_H_
-
-#include <stddef.h>
-#include <stdint.h>
-
-// gen_amalgamated expanded: #include "perfetto/protozero/field_writer.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/message.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/packed_repeated_fields.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/proto_decoder.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/proto_utils.h"
-
-namespace perfetto {
-namespace protos {
-namespace pbzero {
-
-class AndroidLogPacket_LogEvent;
-class AndroidLogPacket_LogEvent_Arg;
-class AndroidLogPacket_Stats;
-enum AndroidLogId : int32_t;
-enum AndroidLogPriority : int32_t;
-
-class AndroidLogPacket_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/2, /*HAS_NONPACKED_REPEATED_FIELDS=*/true> {
- public:
-  AndroidLogPacket_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit AndroidLogPacket_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit AndroidLogPacket_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_events() const { return at<1>().valid(); }
-  ::protozero::RepeatedFieldIterator<::protozero::ConstBytes> events() const { return GetRepeated<::protozero::ConstBytes>(1); }
-  bool has_stats() const { return at<2>().valid(); }
-  ::protozero::ConstBytes stats() const { return at<2>().as_bytes(); }
-};
-
-class AndroidLogPacket : public ::protozero::Message {
- public:
-  using Decoder = AndroidLogPacket_Decoder;
-  enum : int32_t {
-    kEventsFieldNumber = 1,
-    kStatsFieldNumber = 2,
-  };
-  using LogEvent = ::perfetto::protos::pbzero::AndroidLogPacket_LogEvent;
-  using Stats = ::perfetto::protos::pbzero::AndroidLogPacket_Stats;
-
-  using FieldMetadata_Events =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kRepeatedNotPacked,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      AndroidLogPacket_LogEvent,
-      AndroidLogPacket>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Events kEvents() { return {}; }
-  template <typename T = AndroidLogPacket_LogEvent> T* add_events() {
-    return BeginNestedMessage<T>(1);
-  }
-
-
-  using FieldMetadata_Stats =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      AndroidLogPacket_Stats,
-      AndroidLogPacket>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Stats kStats() { return {}; }
-  template <typename T = AndroidLogPacket_Stats> T* set_stats() {
-    return BeginNestedMessage<T>(2);
-  }
-
-};
-
-class AndroidLogPacket_Stats_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/3, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  AndroidLogPacket_Stats_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit AndroidLogPacket_Stats_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit AndroidLogPacket_Stats_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_num_total() const { return at<1>().valid(); }
-  uint64_t num_total() const { return at<1>().as_uint64(); }
-  bool has_num_failed() const { return at<2>().valid(); }
-  uint64_t num_failed() const { return at<2>().as_uint64(); }
-  bool has_num_skipped() const { return at<3>().valid(); }
-  uint64_t num_skipped() const { return at<3>().as_uint64(); }
-};
-
-class AndroidLogPacket_Stats : public ::protozero::Message {
- public:
-  using Decoder = AndroidLogPacket_Stats_Decoder;
-  enum : int32_t {
-    kNumTotalFieldNumber = 1,
-    kNumFailedFieldNumber = 2,
-    kNumSkippedFieldNumber = 3,
-  };
-
-  using FieldMetadata_NumTotal =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      AndroidLogPacket_Stats>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_NumTotal kNumTotal() { return {}; }
-  void set_num_total(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_NumTotal::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_NumFailed =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      AndroidLogPacket_Stats>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_NumFailed kNumFailed() { return {}; }
-  void set_num_failed(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_NumFailed::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_NumSkipped =
-    ::protozero::proto_utils::FieldMetadata<
-      3,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      AndroidLogPacket_Stats>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_NumSkipped kNumSkipped() { return {}; }
-  void set_num_skipped(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_NumSkipped::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-};
-
-class AndroidLogPacket_LogEvent_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/9, /*HAS_NONPACKED_REPEATED_FIELDS=*/true> {
- public:
-  AndroidLogPacket_LogEvent_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit AndroidLogPacket_LogEvent_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit AndroidLogPacket_LogEvent_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_log_id() const { return at<1>().valid(); }
-  int32_t log_id() const { return at<1>().as_int32(); }
-  bool has_pid() const { return at<2>().valid(); }
-  int32_t pid() const { return at<2>().as_int32(); }
-  bool has_tid() const { return at<3>().valid(); }
-  int32_t tid() const { return at<3>().as_int32(); }
-  bool has_uid() const { return at<4>().valid(); }
-  int32_t uid() const { return at<4>().as_int32(); }
-  bool has_timestamp() const { return at<5>().valid(); }
-  uint64_t timestamp() const { return at<5>().as_uint64(); }
-  bool has_tag() const { return at<6>().valid(); }
-  ::protozero::ConstChars tag() const { return at<6>().as_string(); }
-  bool has_prio() const { return at<7>().valid(); }
-  int32_t prio() const { return at<7>().as_int32(); }
-  bool has_message() const { return at<8>().valid(); }
-  ::protozero::ConstChars message() const { return at<8>().as_string(); }
-  bool has_args() const { return at<9>().valid(); }
-  ::protozero::RepeatedFieldIterator<::protozero::ConstBytes> args() const { return GetRepeated<::protozero::ConstBytes>(9); }
-};
-
-class AndroidLogPacket_LogEvent : public ::protozero::Message {
- public:
-  using Decoder = AndroidLogPacket_LogEvent_Decoder;
-  enum : int32_t {
-    kLogIdFieldNumber = 1,
-    kPidFieldNumber = 2,
-    kTidFieldNumber = 3,
-    kUidFieldNumber = 4,
-    kTimestampFieldNumber = 5,
-    kTagFieldNumber = 6,
-    kPrioFieldNumber = 7,
-    kMessageFieldNumber = 8,
-    kArgsFieldNumber = 9,
-  };
-  using Arg = ::perfetto::protos::pbzero::AndroidLogPacket_LogEvent_Arg;
-
-  using FieldMetadata_LogId =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kEnum,
-      ::perfetto::protos::pbzero::AndroidLogId,
-      AndroidLogPacket_LogEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_LogId kLogId() { return {}; }
-  void set_log_id(::perfetto::protos::pbzero::AndroidLogId value) {
-    static constexpr uint32_t field_id = FieldMetadata_LogId::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kEnum>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Pid =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt32,
-      int32_t,
-      AndroidLogPacket_LogEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Pid kPid() { return {}; }
-  void set_pid(int32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Pid::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Tid =
-    ::protozero::proto_utils::FieldMetadata<
-      3,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt32,
-      int32_t,
-      AndroidLogPacket_LogEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Tid kTid() { return {}; }
-  void set_tid(int32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Tid::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Uid =
-    ::protozero::proto_utils::FieldMetadata<
-      4,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt32,
-      int32_t,
-      AndroidLogPacket_LogEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Uid kUid() { return {}; }
-  void set_uid(int32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Uid::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Timestamp =
-    ::protozero::proto_utils::FieldMetadata<
-      5,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      AndroidLogPacket_LogEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Timestamp kTimestamp() { return {}; }
-  void set_timestamp(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Timestamp::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Tag =
-    ::protozero::proto_utils::FieldMetadata<
-      6,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kString,
-      std::string,
-      AndroidLogPacket_LogEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Tag kTag() { return {}; }
-  void set_tag(const char* data, size_t size) {
-    AppendBytes(FieldMetadata_Tag::kFieldId, data, size);
-  }
-  void set_tag(std::string value) {
-    static constexpr uint32_t field_id = FieldMetadata_Tag::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kString>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Prio =
-    ::protozero::proto_utils::FieldMetadata<
-      7,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kEnum,
-      ::perfetto::protos::pbzero::AndroidLogPriority,
-      AndroidLogPacket_LogEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Prio kPrio() { return {}; }
-  void set_prio(::perfetto::protos::pbzero::AndroidLogPriority value) {
-    static constexpr uint32_t field_id = FieldMetadata_Prio::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kEnum>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Message =
-    ::protozero::proto_utils::FieldMetadata<
-      8,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kString,
-      std::string,
-      AndroidLogPacket_LogEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Message kMessage() { return {}; }
-  void set_message(const char* data, size_t size) {
-    AppendBytes(FieldMetadata_Message::kFieldId, data, size);
-  }
-  void set_message(std::string value) {
-    static constexpr uint32_t field_id = FieldMetadata_Message::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kString>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Args =
-    ::protozero::proto_utils::FieldMetadata<
-      9,
-      ::protozero::proto_utils::RepetitionType::kRepeatedNotPacked,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      AndroidLogPacket_LogEvent_Arg,
-      AndroidLogPacket_LogEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Args kArgs() { return {}; }
-  template <typename T = AndroidLogPacket_LogEvent_Arg> T* add_args() {
-    return BeginNestedMessage<T>(9);
-  }
-
-};
-
-class AndroidLogPacket_LogEvent_Arg_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/4, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  AndroidLogPacket_LogEvent_Arg_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit AndroidLogPacket_LogEvent_Arg_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit AndroidLogPacket_LogEvent_Arg_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_name() const { return at<1>().valid(); }
-  ::protozero::ConstChars name() const { return at<1>().as_string(); }
-  bool has_int_value() const { return at<2>().valid(); }
-  int64_t int_value() const { return at<2>().as_int64(); }
-  bool has_float_value() const { return at<3>().valid(); }
-  float float_value() const { return at<3>().as_float(); }
-  bool has_string_value() const { return at<4>().valid(); }
-  ::protozero::ConstChars string_value() const { return at<4>().as_string(); }
-};
-
-class AndroidLogPacket_LogEvent_Arg : public ::protozero::Message {
- public:
-  using Decoder = AndroidLogPacket_LogEvent_Arg_Decoder;
-  enum : int32_t {
-    kNameFieldNumber = 1,
-    kIntValueFieldNumber = 2,
-    kFloatValueFieldNumber = 3,
-    kStringValueFieldNumber = 4,
-  };
-
-  using FieldMetadata_Name =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kString,
-      std::string,
-      AndroidLogPacket_LogEvent_Arg>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Name kName() { return {}; }
-  void set_name(const char* data, size_t size) {
-    AppendBytes(FieldMetadata_Name::kFieldId, data, size);
-  }
-  void set_name(std::string value) {
-    static constexpr uint32_t field_id = FieldMetadata_Name::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kString>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_IntValue =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt64,
-      int64_t,
-      AndroidLogPacket_LogEvent_Arg>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_IntValue kIntValue() { return {}; }
-  void set_int_value(int64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_IntValue::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_FloatValue =
-    ::protozero::proto_utils::FieldMetadata<
-      3,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kFloat,
-      float,
-      AndroidLogPacket_LogEvent_Arg>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_FloatValue kFloatValue() { return {}; }
-  void set_float_value(float value) {
-    static constexpr uint32_t field_id = FieldMetadata_FloatValue::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kFloat>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_StringValue =
-    ::protozero::proto_utils::FieldMetadata<
-      4,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kString,
-      std::string,
-      AndroidLogPacket_LogEvent_Arg>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_StringValue kStringValue() { return {}; }
-  void set_string_value(const char* data, size_t size) {
-    AppendBytes(FieldMetadata_StringValue::kFieldId, data, size);
-  }
-  void set_string_value(std::string value) {
-    static constexpr uint32_t field_id = FieldMetadata_StringValue::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kString>
-        ::Append(*this, field_id, value);
-  }
-};
-
-} // Namespace.
-} // Namespace.
-} // Namespace.
-#endif  // Include guard.
-// gen_amalgamated begin header: gen/protos/perfetto/trace/android/frame_timeline_event.pbzero.h
-// Autogenerated by the ProtoZero compiler plugin. DO NOT EDIT.
-
-#ifndef PERFETTO_PROTOS_PROTOS_PERFETTO_TRACE_ANDROID_FRAME_TIMELINE_EVENT_PROTO_H_
-#define PERFETTO_PROTOS_PROTOS_PERFETTO_TRACE_ANDROID_FRAME_TIMELINE_EVENT_PROTO_H_
-
-#include <stddef.h>
-#include <stdint.h>
-
-// gen_amalgamated expanded: #include "perfetto/protozero/field_writer.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/message.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/packed_repeated_fields.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/proto_decoder.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/proto_utils.h"
-
-namespace perfetto {
-namespace protos {
-namespace pbzero {
-
-class FrameTimelineEvent_ActualDisplayFrameStart;
-class FrameTimelineEvent_ActualSurfaceFrameStart;
-class FrameTimelineEvent_ExpectedDisplayFrameStart;
-class FrameTimelineEvent_ExpectedSurfaceFrameStart;
-class FrameTimelineEvent_FrameEnd;
-enum FrameTimelineEvent_PredictionType : int32_t;
-enum FrameTimelineEvent_PresentType : int32_t;
-
-enum FrameTimelineEvent_JankType : int32_t {
-  FrameTimelineEvent_JankType_JANK_UNSPECIFIED = 0,
-  FrameTimelineEvent_JankType_JANK_NONE = 1,
-  FrameTimelineEvent_JankType_JANK_SF_SCHEDULING = 2,
-  FrameTimelineEvent_JankType_JANK_PREDICTION_ERROR = 4,
-  FrameTimelineEvent_JankType_JANK_DISPLAY_HAL = 8,
-  FrameTimelineEvent_JankType_JANK_SF_CPU_DEADLINE_MISSED = 16,
-  FrameTimelineEvent_JankType_JANK_SF_GPU_DEADLINE_MISSED = 32,
-  FrameTimelineEvent_JankType_JANK_APP_DEADLINE_MISSED = 64,
-  FrameTimelineEvent_JankType_JANK_BUFFER_STUFFING = 128,
-  FrameTimelineEvent_JankType_JANK_UNKNOWN = 256,
-  FrameTimelineEvent_JankType_JANK_SF_STUFFING = 512,
-};
-
-const FrameTimelineEvent_JankType FrameTimelineEvent_JankType_MIN = FrameTimelineEvent_JankType_JANK_UNSPECIFIED;
-const FrameTimelineEvent_JankType FrameTimelineEvent_JankType_MAX = FrameTimelineEvent_JankType_JANK_SF_STUFFING;
-
-enum FrameTimelineEvent_PresentType : int32_t {
-  FrameTimelineEvent_PresentType_PRESENT_UNSPECIFIED = 0,
-  FrameTimelineEvent_PresentType_PRESENT_ON_TIME = 1,
-  FrameTimelineEvent_PresentType_PRESENT_LATE = 2,
-  FrameTimelineEvent_PresentType_PRESENT_EARLY = 3,
-  FrameTimelineEvent_PresentType_PRESENT_DROPPED = 4,
-  FrameTimelineEvent_PresentType_PRESENT_UNKNOWN = 5,
-};
-
-const FrameTimelineEvent_PresentType FrameTimelineEvent_PresentType_MIN = FrameTimelineEvent_PresentType_PRESENT_UNSPECIFIED;
-const FrameTimelineEvent_PresentType FrameTimelineEvent_PresentType_MAX = FrameTimelineEvent_PresentType_PRESENT_UNKNOWN;
-
-enum FrameTimelineEvent_PredictionType : int32_t {
-  FrameTimelineEvent_PredictionType_PREDICTION_UNSPECIFIED = 0,
-  FrameTimelineEvent_PredictionType_PREDICTION_VALID = 1,
-  FrameTimelineEvent_PredictionType_PREDICTION_EXPIRED = 2,
-  FrameTimelineEvent_PredictionType_PREDICTION_UNKNOWN = 3,
-};
-
-const FrameTimelineEvent_PredictionType FrameTimelineEvent_PredictionType_MIN = FrameTimelineEvent_PredictionType_PREDICTION_UNSPECIFIED;
-const FrameTimelineEvent_PredictionType FrameTimelineEvent_PredictionType_MAX = FrameTimelineEvent_PredictionType_PREDICTION_UNKNOWN;
-
-class FrameTimelineEvent_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/5, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  FrameTimelineEvent_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit FrameTimelineEvent_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit FrameTimelineEvent_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_expected_display_frame_start() const { return at<1>().valid(); }
-  ::protozero::ConstBytes expected_display_frame_start() const { return at<1>().as_bytes(); }
-  bool has_actual_display_frame_start() const { return at<2>().valid(); }
-  ::protozero::ConstBytes actual_display_frame_start() const { return at<2>().as_bytes(); }
-  bool has_expected_surface_frame_start() const { return at<3>().valid(); }
-  ::protozero::ConstBytes expected_surface_frame_start() const { return at<3>().as_bytes(); }
-  bool has_actual_surface_frame_start() const { return at<4>().valid(); }
-  ::protozero::ConstBytes actual_surface_frame_start() const { return at<4>().as_bytes(); }
-  bool has_frame_end() const { return at<5>().valid(); }
-  ::protozero::ConstBytes frame_end() const { return at<5>().as_bytes(); }
-};
-
-class FrameTimelineEvent : public ::protozero::Message {
- public:
-  using Decoder = FrameTimelineEvent_Decoder;
-  enum : int32_t {
-    kExpectedDisplayFrameStartFieldNumber = 1,
-    kActualDisplayFrameStartFieldNumber = 2,
-    kExpectedSurfaceFrameStartFieldNumber = 3,
-    kActualSurfaceFrameStartFieldNumber = 4,
-    kFrameEndFieldNumber = 5,
-  };
-  using ExpectedSurfaceFrameStart = ::perfetto::protos::pbzero::FrameTimelineEvent_ExpectedSurfaceFrameStart;
-  using ActualSurfaceFrameStart = ::perfetto::protos::pbzero::FrameTimelineEvent_ActualSurfaceFrameStart;
-  using ExpectedDisplayFrameStart = ::perfetto::protos::pbzero::FrameTimelineEvent_ExpectedDisplayFrameStart;
-  using ActualDisplayFrameStart = ::perfetto::protos::pbzero::FrameTimelineEvent_ActualDisplayFrameStart;
-  using FrameEnd = ::perfetto::protos::pbzero::FrameTimelineEvent_FrameEnd;
-  using JankType = ::perfetto::protos::pbzero::FrameTimelineEvent_JankType;
-  using PresentType = ::perfetto::protos::pbzero::FrameTimelineEvent_PresentType;
-  using PredictionType = ::perfetto::protos::pbzero::FrameTimelineEvent_PredictionType;
-  static const JankType JANK_UNSPECIFIED = FrameTimelineEvent_JankType_JANK_UNSPECIFIED;
-  static const JankType JANK_NONE = FrameTimelineEvent_JankType_JANK_NONE;
-  static const JankType JANK_SF_SCHEDULING = FrameTimelineEvent_JankType_JANK_SF_SCHEDULING;
-  static const JankType JANK_PREDICTION_ERROR = FrameTimelineEvent_JankType_JANK_PREDICTION_ERROR;
-  static const JankType JANK_DISPLAY_HAL = FrameTimelineEvent_JankType_JANK_DISPLAY_HAL;
-  static const JankType JANK_SF_CPU_DEADLINE_MISSED = FrameTimelineEvent_JankType_JANK_SF_CPU_DEADLINE_MISSED;
-  static const JankType JANK_SF_GPU_DEADLINE_MISSED = FrameTimelineEvent_JankType_JANK_SF_GPU_DEADLINE_MISSED;
-  static const JankType JANK_APP_DEADLINE_MISSED = FrameTimelineEvent_JankType_JANK_APP_DEADLINE_MISSED;
-  static const JankType JANK_BUFFER_STUFFING = FrameTimelineEvent_JankType_JANK_BUFFER_STUFFING;
-  static const JankType JANK_UNKNOWN = FrameTimelineEvent_JankType_JANK_UNKNOWN;
-  static const JankType JANK_SF_STUFFING = FrameTimelineEvent_JankType_JANK_SF_STUFFING;
-  static const PresentType PRESENT_UNSPECIFIED = FrameTimelineEvent_PresentType_PRESENT_UNSPECIFIED;
-  static const PresentType PRESENT_ON_TIME = FrameTimelineEvent_PresentType_PRESENT_ON_TIME;
-  static const PresentType PRESENT_LATE = FrameTimelineEvent_PresentType_PRESENT_LATE;
-  static const PresentType PRESENT_EARLY = FrameTimelineEvent_PresentType_PRESENT_EARLY;
-  static const PresentType PRESENT_DROPPED = FrameTimelineEvent_PresentType_PRESENT_DROPPED;
-  static const PresentType PRESENT_UNKNOWN = FrameTimelineEvent_PresentType_PRESENT_UNKNOWN;
-  static const PredictionType PREDICTION_UNSPECIFIED = FrameTimelineEvent_PredictionType_PREDICTION_UNSPECIFIED;
-  static const PredictionType PREDICTION_VALID = FrameTimelineEvent_PredictionType_PREDICTION_VALID;
-  static const PredictionType PREDICTION_EXPIRED = FrameTimelineEvent_PredictionType_PREDICTION_EXPIRED;
-  static const PredictionType PREDICTION_UNKNOWN = FrameTimelineEvent_PredictionType_PREDICTION_UNKNOWN;
-
-  using FieldMetadata_ExpectedDisplayFrameStart =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      FrameTimelineEvent_ExpectedDisplayFrameStart,
-      FrameTimelineEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_ExpectedDisplayFrameStart kExpectedDisplayFrameStart() { return {}; }
-  template <typename T = FrameTimelineEvent_ExpectedDisplayFrameStart> T* set_expected_display_frame_start() {
-    return BeginNestedMessage<T>(1);
-  }
-
-
-  using FieldMetadata_ActualDisplayFrameStart =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      FrameTimelineEvent_ActualDisplayFrameStart,
-      FrameTimelineEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_ActualDisplayFrameStart kActualDisplayFrameStart() { return {}; }
-  template <typename T = FrameTimelineEvent_ActualDisplayFrameStart> T* set_actual_display_frame_start() {
-    return BeginNestedMessage<T>(2);
-  }
-
-
-  using FieldMetadata_ExpectedSurfaceFrameStart =
-    ::protozero::proto_utils::FieldMetadata<
-      3,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      FrameTimelineEvent_ExpectedSurfaceFrameStart,
-      FrameTimelineEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_ExpectedSurfaceFrameStart kExpectedSurfaceFrameStart() { return {}; }
-  template <typename T = FrameTimelineEvent_ExpectedSurfaceFrameStart> T* set_expected_surface_frame_start() {
-    return BeginNestedMessage<T>(3);
-  }
-
-
-  using FieldMetadata_ActualSurfaceFrameStart =
-    ::protozero::proto_utils::FieldMetadata<
-      4,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      FrameTimelineEvent_ActualSurfaceFrameStart,
-      FrameTimelineEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_ActualSurfaceFrameStart kActualSurfaceFrameStart() { return {}; }
-  template <typename T = FrameTimelineEvent_ActualSurfaceFrameStart> T* set_actual_surface_frame_start() {
-    return BeginNestedMessage<T>(4);
-  }
-
-
-  using FieldMetadata_FrameEnd =
-    ::protozero::proto_utils::FieldMetadata<
-      5,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      FrameTimelineEvent_FrameEnd,
-      FrameTimelineEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_FrameEnd kFrameEnd() { return {}; }
-  template <typename T = FrameTimelineEvent_FrameEnd> T* set_frame_end() {
-    return BeginNestedMessage<T>(5);
-  }
-
-};
-
-class FrameTimelineEvent_FrameEnd_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/1, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  FrameTimelineEvent_FrameEnd_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit FrameTimelineEvent_FrameEnd_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit FrameTimelineEvent_FrameEnd_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_cookie() const { return at<1>().valid(); }
-  int64_t cookie() const { return at<1>().as_int64(); }
-};
-
-class FrameTimelineEvent_FrameEnd : public ::protozero::Message {
- public:
-  using Decoder = FrameTimelineEvent_FrameEnd_Decoder;
-  enum : int32_t {
-    kCookieFieldNumber = 1,
-  };
-
-  using FieldMetadata_Cookie =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt64,
-      int64_t,
-      FrameTimelineEvent_FrameEnd>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Cookie kCookie() { return {}; }
-  void set_cookie(int64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Cookie::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt64>
-        ::Append(*this, field_id, value);
-  }
-};
-
-class FrameTimelineEvent_ActualDisplayFrameStart_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/8, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  FrameTimelineEvent_ActualDisplayFrameStart_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit FrameTimelineEvent_ActualDisplayFrameStart_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit FrameTimelineEvent_ActualDisplayFrameStart_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_cookie() const { return at<1>().valid(); }
-  int64_t cookie() const { return at<1>().as_int64(); }
-  bool has_token() const { return at<2>().valid(); }
-  int64_t token() const { return at<2>().as_int64(); }
-  bool has_pid() const { return at<3>().valid(); }
-  int32_t pid() const { return at<3>().as_int32(); }
-  bool has_present_type() const { return at<4>().valid(); }
-  int32_t present_type() const { return at<4>().as_int32(); }
-  bool has_on_time_finish() const { return at<5>().valid(); }
-  bool on_time_finish() const { return at<5>().as_bool(); }
-  bool has_gpu_composition() const { return at<6>().valid(); }
-  bool gpu_composition() const { return at<6>().as_bool(); }
-  bool has_jank_type() const { return at<7>().valid(); }
-  int32_t jank_type() const { return at<7>().as_int32(); }
-  bool has_prediction_type() const { return at<8>().valid(); }
-  int32_t prediction_type() const { return at<8>().as_int32(); }
-};
-
-class FrameTimelineEvent_ActualDisplayFrameStart : public ::protozero::Message {
- public:
-  using Decoder = FrameTimelineEvent_ActualDisplayFrameStart_Decoder;
-  enum : int32_t {
-    kCookieFieldNumber = 1,
-    kTokenFieldNumber = 2,
-    kPidFieldNumber = 3,
-    kPresentTypeFieldNumber = 4,
-    kOnTimeFinishFieldNumber = 5,
-    kGpuCompositionFieldNumber = 6,
-    kJankTypeFieldNumber = 7,
-    kPredictionTypeFieldNumber = 8,
-  };
-
-  using FieldMetadata_Cookie =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt64,
-      int64_t,
-      FrameTimelineEvent_ActualDisplayFrameStart>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Cookie kCookie() { return {}; }
-  void set_cookie(int64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Cookie::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Token =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt64,
-      int64_t,
-      FrameTimelineEvent_ActualDisplayFrameStart>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Token kToken() { return {}; }
-  void set_token(int64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Token::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Pid =
-    ::protozero::proto_utils::FieldMetadata<
-      3,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt32,
-      int32_t,
-      FrameTimelineEvent_ActualDisplayFrameStart>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Pid kPid() { return {}; }
-  void set_pid(int32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Pid::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_PresentType =
-    ::protozero::proto_utils::FieldMetadata<
-      4,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kEnum,
-      ::perfetto::protos::pbzero::FrameTimelineEvent_PresentType,
-      FrameTimelineEvent_ActualDisplayFrameStart>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_PresentType kPresentType() { return {}; }
-  void set_present_type(::perfetto::protos::pbzero::FrameTimelineEvent_PresentType value) {
-    static constexpr uint32_t field_id = FieldMetadata_PresentType::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kEnum>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_OnTimeFinish =
-    ::protozero::proto_utils::FieldMetadata<
-      5,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kBool,
-      bool,
-      FrameTimelineEvent_ActualDisplayFrameStart>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_OnTimeFinish kOnTimeFinish() { return {}; }
-  void set_on_time_finish(bool value) {
-    static constexpr uint32_t field_id = FieldMetadata_OnTimeFinish::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kBool>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_GpuComposition =
-    ::protozero::proto_utils::FieldMetadata<
-      6,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kBool,
-      bool,
-      FrameTimelineEvent_ActualDisplayFrameStart>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_GpuComposition kGpuComposition() { return {}; }
-  void set_gpu_composition(bool value) {
-    static constexpr uint32_t field_id = FieldMetadata_GpuComposition::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kBool>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_JankType =
-    ::protozero::proto_utils::FieldMetadata<
-      7,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt32,
-      int32_t,
-      FrameTimelineEvent_ActualDisplayFrameStart>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_JankType kJankType() { return {}; }
-  void set_jank_type(int32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_JankType::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_PredictionType =
-    ::protozero::proto_utils::FieldMetadata<
-      8,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kEnum,
-      ::perfetto::protos::pbzero::FrameTimelineEvent_PredictionType,
-      FrameTimelineEvent_ActualDisplayFrameStart>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_PredictionType kPredictionType() { return {}; }
-  void set_prediction_type(::perfetto::protos::pbzero::FrameTimelineEvent_PredictionType value) {
-    static constexpr uint32_t field_id = FieldMetadata_PredictionType::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kEnum>
-        ::Append(*this, field_id, value);
-  }
-};
-
-class FrameTimelineEvent_ExpectedDisplayFrameStart_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/3, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  FrameTimelineEvent_ExpectedDisplayFrameStart_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit FrameTimelineEvent_ExpectedDisplayFrameStart_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit FrameTimelineEvent_ExpectedDisplayFrameStart_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_cookie() const { return at<1>().valid(); }
-  int64_t cookie() const { return at<1>().as_int64(); }
-  bool has_token() const { return at<2>().valid(); }
-  int64_t token() const { return at<2>().as_int64(); }
-  bool has_pid() const { return at<3>().valid(); }
-  int32_t pid() const { return at<3>().as_int32(); }
-};
-
-class FrameTimelineEvent_ExpectedDisplayFrameStart : public ::protozero::Message {
- public:
-  using Decoder = FrameTimelineEvent_ExpectedDisplayFrameStart_Decoder;
-  enum : int32_t {
-    kCookieFieldNumber = 1,
-    kTokenFieldNumber = 2,
-    kPidFieldNumber = 3,
-  };
-
-  using FieldMetadata_Cookie =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt64,
-      int64_t,
-      FrameTimelineEvent_ExpectedDisplayFrameStart>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Cookie kCookie() { return {}; }
-  void set_cookie(int64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Cookie::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Token =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt64,
-      int64_t,
-      FrameTimelineEvent_ExpectedDisplayFrameStart>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Token kToken() { return {}; }
-  void set_token(int64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Token::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Pid =
-    ::protozero::proto_utils::FieldMetadata<
-      3,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt32,
-      int32_t,
-      FrameTimelineEvent_ExpectedDisplayFrameStart>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Pid kPid() { return {}; }
-  void set_pid(int32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Pid::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt32>
-        ::Append(*this, field_id, value);
-  }
-};
-
-class FrameTimelineEvent_ActualSurfaceFrameStart_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/11, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  FrameTimelineEvent_ActualSurfaceFrameStart_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit FrameTimelineEvent_ActualSurfaceFrameStart_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit FrameTimelineEvent_ActualSurfaceFrameStart_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_cookie() const { return at<1>().valid(); }
-  int64_t cookie() const { return at<1>().as_int64(); }
-  bool has_token() const { return at<2>().valid(); }
-  int64_t token() const { return at<2>().as_int64(); }
-  bool has_display_frame_token() const { return at<3>().valid(); }
-  int64_t display_frame_token() const { return at<3>().as_int64(); }
-  bool has_pid() const { return at<4>().valid(); }
-  int32_t pid() const { return at<4>().as_int32(); }
-  bool has_layer_name() const { return at<5>().valid(); }
-  ::protozero::ConstChars layer_name() const { return at<5>().as_string(); }
-  bool has_present_type() const { return at<6>().valid(); }
-  int32_t present_type() const { return at<6>().as_int32(); }
-  bool has_on_time_finish() const { return at<7>().valid(); }
-  bool on_time_finish() const { return at<7>().as_bool(); }
-  bool has_gpu_composition() const { return at<8>().valid(); }
-  bool gpu_composition() const { return at<8>().as_bool(); }
-  bool has_jank_type() const { return at<9>().valid(); }
-  int32_t jank_type() const { return at<9>().as_int32(); }
-  bool has_prediction_type() const { return at<10>().valid(); }
-  int32_t prediction_type() const { return at<10>().as_int32(); }
-  bool has_is_buffer() const { return at<11>().valid(); }
-  bool is_buffer() const { return at<11>().as_bool(); }
-};
-
-class FrameTimelineEvent_ActualSurfaceFrameStart : public ::protozero::Message {
- public:
-  using Decoder = FrameTimelineEvent_ActualSurfaceFrameStart_Decoder;
-  enum : int32_t {
-    kCookieFieldNumber = 1,
-    kTokenFieldNumber = 2,
-    kDisplayFrameTokenFieldNumber = 3,
-    kPidFieldNumber = 4,
-    kLayerNameFieldNumber = 5,
-    kPresentTypeFieldNumber = 6,
-    kOnTimeFinishFieldNumber = 7,
-    kGpuCompositionFieldNumber = 8,
-    kJankTypeFieldNumber = 9,
-    kPredictionTypeFieldNumber = 10,
-    kIsBufferFieldNumber = 11,
-  };
-
-  using FieldMetadata_Cookie =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt64,
-      int64_t,
-      FrameTimelineEvent_ActualSurfaceFrameStart>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Cookie kCookie() { return {}; }
-  void set_cookie(int64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Cookie::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Token =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt64,
-      int64_t,
-      FrameTimelineEvent_ActualSurfaceFrameStart>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Token kToken() { return {}; }
-  void set_token(int64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Token::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_DisplayFrameToken =
-    ::protozero::proto_utils::FieldMetadata<
-      3,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt64,
-      int64_t,
-      FrameTimelineEvent_ActualSurfaceFrameStart>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_DisplayFrameToken kDisplayFrameToken() { return {}; }
-  void set_display_frame_token(int64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_DisplayFrameToken::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Pid =
-    ::protozero::proto_utils::FieldMetadata<
-      4,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt32,
-      int32_t,
-      FrameTimelineEvent_ActualSurfaceFrameStart>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Pid kPid() { return {}; }
-  void set_pid(int32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Pid::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_LayerName =
-    ::protozero::proto_utils::FieldMetadata<
-      5,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kString,
-      std::string,
-      FrameTimelineEvent_ActualSurfaceFrameStart>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_LayerName kLayerName() { return {}; }
-  void set_layer_name(const char* data, size_t size) {
-    AppendBytes(FieldMetadata_LayerName::kFieldId, data, size);
-  }
-  void set_layer_name(std::string value) {
-    static constexpr uint32_t field_id = FieldMetadata_LayerName::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kString>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_PresentType =
-    ::protozero::proto_utils::FieldMetadata<
-      6,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kEnum,
-      ::perfetto::protos::pbzero::FrameTimelineEvent_PresentType,
-      FrameTimelineEvent_ActualSurfaceFrameStart>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_PresentType kPresentType() { return {}; }
-  void set_present_type(::perfetto::protos::pbzero::FrameTimelineEvent_PresentType value) {
-    static constexpr uint32_t field_id = FieldMetadata_PresentType::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kEnum>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_OnTimeFinish =
-    ::protozero::proto_utils::FieldMetadata<
-      7,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kBool,
-      bool,
-      FrameTimelineEvent_ActualSurfaceFrameStart>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_OnTimeFinish kOnTimeFinish() { return {}; }
-  void set_on_time_finish(bool value) {
-    static constexpr uint32_t field_id = FieldMetadata_OnTimeFinish::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kBool>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_GpuComposition =
-    ::protozero::proto_utils::FieldMetadata<
-      8,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kBool,
-      bool,
-      FrameTimelineEvent_ActualSurfaceFrameStart>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_GpuComposition kGpuComposition() { return {}; }
-  void set_gpu_composition(bool value) {
-    static constexpr uint32_t field_id = FieldMetadata_GpuComposition::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kBool>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_JankType =
-    ::protozero::proto_utils::FieldMetadata<
-      9,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt32,
-      int32_t,
-      FrameTimelineEvent_ActualSurfaceFrameStart>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_JankType kJankType() { return {}; }
-  void set_jank_type(int32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_JankType::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_PredictionType =
-    ::protozero::proto_utils::FieldMetadata<
-      10,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kEnum,
-      ::perfetto::protos::pbzero::FrameTimelineEvent_PredictionType,
-      FrameTimelineEvent_ActualSurfaceFrameStart>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_PredictionType kPredictionType() { return {}; }
-  void set_prediction_type(::perfetto::protos::pbzero::FrameTimelineEvent_PredictionType value) {
-    static constexpr uint32_t field_id = FieldMetadata_PredictionType::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kEnum>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_IsBuffer =
-    ::protozero::proto_utils::FieldMetadata<
-      11,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kBool,
-      bool,
-      FrameTimelineEvent_ActualSurfaceFrameStart>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_IsBuffer kIsBuffer() { return {}; }
-  void set_is_buffer(bool value) {
-    static constexpr uint32_t field_id = FieldMetadata_IsBuffer::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kBool>
-        ::Append(*this, field_id, value);
-  }
-};
-
-class FrameTimelineEvent_ExpectedSurfaceFrameStart_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/5, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  FrameTimelineEvent_ExpectedSurfaceFrameStart_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit FrameTimelineEvent_ExpectedSurfaceFrameStart_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit FrameTimelineEvent_ExpectedSurfaceFrameStart_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_cookie() const { return at<1>().valid(); }
-  int64_t cookie() const { return at<1>().as_int64(); }
-  bool has_token() const { return at<2>().valid(); }
-  int64_t token() const { return at<2>().as_int64(); }
-  bool has_display_frame_token() const { return at<3>().valid(); }
-  int64_t display_frame_token() const { return at<3>().as_int64(); }
-  bool has_pid() const { return at<4>().valid(); }
-  int32_t pid() const { return at<4>().as_int32(); }
-  bool has_layer_name() const { return at<5>().valid(); }
-  ::protozero::ConstChars layer_name() const { return at<5>().as_string(); }
-};
-
-class FrameTimelineEvent_ExpectedSurfaceFrameStart : public ::protozero::Message {
- public:
-  using Decoder = FrameTimelineEvent_ExpectedSurfaceFrameStart_Decoder;
-  enum : int32_t {
-    kCookieFieldNumber = 1,
-    kTokenFieldNumber = 2,
-    kDisplayFrameTokenFieldNumber = 3,
-    kPidFieldNumber = 4,
-    kLayerNameFieldNumber = 5,
-  };
-
-  using FieldMetadata_Cookie =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt64,
-      int64_t,
-      FrameTimelineEvent_ExpectedSurfaceFrameStart>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Cookie kCookie() { return {}; }
-  void set_cookie(int64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Cookie::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Token =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt64,
-      int64_t,
-      FrameTimelineEvent_ExpectedSurfaceFrameStart>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Token kToken() { return {}; }
-  void set_token(int64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Token::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_DisplayFrameToken =
-    ::protozero::proto_utils::FieldMetadata<
-      3,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt64,
-      int64_t,
-      FrameTimelineEvent_ExpectedSurfaceFrameStart>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_DisplayFrameToken kDisplayFrameToken() { return {}; }
-  void set_display_frame_token(int64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_DisplayFrameToken::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Pid =
-    ::protozero::proto_utils::FieldMetadata<
-      4,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt32,
-      int32_t,
-      FrameTimelineEvent_ExpectedSurfaceFrameStart>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Pid kPid() { return {}; }
-  void set_pid(int32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Pid::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_LayerName =
-    ::protozero::proto_utils::FieldMetadata<
-      5,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kString,
-      std::string,
-      FrameTimelineEvent_ExpectedSurfaceFrameStart>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_LayerName kLayerName() { return {}; }
-  void set_layer_name(const char* data, size_t size) {
-    AppendBytes(FieldMetadata_LayerName::kFieldId, data, size);
-  }
-  void set_layer_name(std::string value) {
-    static constexpr uint32_t field_id = FieldMetadata_LayerName::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kString>
-        ::Append(*this, field_id, value);
-  }
-};
-
-} // Namespace.
-} // Namespace.
-} // Namespace.
-#endif  // Include guard.
-// gen_amalgamated begin header: gen/protos/perfetto/trace/android/gpu_mem_event.pbzero.h
-// Autogenerated by the ProtoZero compiler plugin. DO NOT EDIT.
-
-#ifndef PERFETTO_PROTOS_PROTOS_PERFETTO_TRACE_ANDROID_GPU_MEM_EVENT_PROTO_H_
-#define PERFETTO_PROTOS_PROTOS_PERFETTO_TRACE_ANDROID_GPU_MEM_EVENT_PROTO_H_
-
-#include <stddef.h>
-#include <stdint.h>
-
-// gen_amalgamated expanded: #include "perfetto/protozero/field_writer.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/message.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/packed_repeated_fields.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/proto_decoder.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/proto_utils.h"
-
-namespace perfetto {
-namespace protos {
-namespace pbzero {
-
-
-class GpuMemTotalEvent_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/3, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  GpuMemTotalEvent_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit GpuMemTotalEvent_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit GpuMemTotalEvent_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_gpu_id() const { return at<1>().valid(); }
-  uint32_t gpu_id() const { return at<1>().as_uint32(); }
-  bool has_pid() const { return at<2>().valid(); }
-  uint32_t pid() const { return at<2>().as_uint32(); }
-  bool has_size() const { return at<3>().valid(); }
-  uint64_t size() const { return at<3>().as_uint64(); }
-};
-
-class GpuMemTotalEvent : public ::protozero::Message {
- public:
-  using Decoder = GpuMemTotalEvent_Decoder;
-  enum : int32_t {
-    kGpuIdFieldNumber = 1,
-    kPidFieldNumber = 2,
-    kSizeFieldNumber = 3,
-  };
-
-  using FieldMetadata_GpuId =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      GpuMemTotalEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_GpuId kGpuId() { return {}; }
-  void set_gpu_id(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_GpuId::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Pid =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      GpuMemTotalEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Pid kPid() { return {}; }
-  void set_pid(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Pid::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Size =
-    ::protozero::proto_utils::FieldMetadata<
-      3,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      GpuMemTotalEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Size kSize() { return {}; }
-  void set_size(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Size::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-};
-
-} // Namespace.
-} // Namespace.
-} // Namespace.
-#endif  // Include guard.
-// gen_amalgamated begin header: gen/protos/perfetto/trace/android/graphics_frame_event.pbzero.h
-// Autogenerated by the ProtoZero compiler plugin. DO NOT EDIT.
-
-#ifndef PERFETTO_PROTOS_PROTOS_PERFETTO_TRACE_ANDROID_GRAPHICS_FRAME_EVENT_PROTO_H_
-#define PERFETTO_PROTOS_PROTOS_PERFETTO_TRACE_ANDROID_GRAPHICS_FRAME_EVENT_PROTO_H_
-
-#include <stddef.h>
-#include <stdint.h>
-
-// gen_amalgamated expanded: #include "perfetto/protozero/field_writer.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/message.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/packed_repeated_fields.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/proto_decoder.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/proto_utils.h"
-
-namespace perfetto {
-namespace protos {
-namespace pbzero {
-
-class GraphicsFrameEvent_BufferEvent;
-enum GraphicsFrameEvent_BufferEventType : int32_t;
-
-enum GraphicsFrameEvent_BufferEventType : int32_t {
-  GraphicsFrameEvent_BufferEventType_UNSPECIFIED = 0,
-  GraphicsFrameEvent_BufferEventType_DEQUEUE = 1,
-  GraphicsFrameEvent_BufferEventType_QUEUE = 2,
-  GraphicsFrameEvent_BufferEventType_POST = 3,
-  GraphicsFrameEvent_BufferEventType_ACQUIRE_FENCE = 4,
-  GraphicsFrameEvent_BufferEventType_LATCH = 5,
-  GraphicsFrameEvent_BufferEventType_HWC_COMPOSITION_QUEUED = 6,
-  GraphicsFrameEvent_BufferEventType_FALLBACK_COMPOSITION = 7,
-  GraphicsFrameEvent_BufferEventType_PRESENT_FENCE = 8,
-  GraphicsFrameEvent_BufferEventType_RELEASE_FENCE = 9,
-  GraphicsFrameEvent_BufferEventType_MODIFY = 10,
-  GraphicsFrameEvent_BufferEventType_DETACH = 11,
-  GraphicsFrameEvent_BufferEventType_ATTACH = 12,
-  GraphicsFrameEvent_BufferEventType_CANCEL = 13,
-};
-
-const GraphicsFrameEvent_BufferEventType GraphicsFrameEvent_BufferEventType_MIN = GraphicsFrameEvent_BufferEventType_UNSPECIFIED;
-const GraphicsFrameEvent_BufferEventType GraphicsFrameEvent_BufferEventType_MAX = GraphicsFrameEvent_BufferEventType_CANCEL;
-
-class GraphicsFrameEvent_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/1, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  GraphicsFrameEvent_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit GraphicsFrameEvent_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit GraphicsFrameEvent_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_buffer_event() const { return at<1>().valid(); }
-  ::protozero::ConstBytes buffer_event() const { return at<1>().as_bytes(); }
-};
-
-class GraphicsFrameEvent : public ::protozero::Message {
- public:
-  using Decoder = GraphicsFrameEvent_Decoder;
-  enum : int32_t {
-    kBufferEventFieldNumber = 1,
-  };
-  using BufferEvent = ::perfetto::protos::pbzero::GraphicsFrameEvent_BufferEvent;
-  using BufferEventType = ::perfetto::protos::pbzero::GraphicsFrameEvent_BufferEventType;
-  static const BufferEventType UNSPECIFIED = GraphicsFrameEvent_BufferEventType_UNSPECIFIED;
-  static const BufferEventType DEQUEUE = GraphicsFrameEvent_BufferEventType_DEQUEUE;
-  static const BufferEventType QUEUE = GraphicsFrameEvent_BufferEventType_QUEUE;
-  static const BufferEventType POST = GraphicsFrameEvent_BufferEventType_POST;
-  static const BufferEventType ACQUIRE_FENCE = GraphicsFrameEvent_BufferEventType_ACQUIRE_FENCE;
-  static const BufferEventType LATCH = GraphicsFrameEvent_BufferEventType_LATCH;
-  static const BufferEventType HWC_COMPOSITION_QUEUED = GraphicsFrameEvent_BufferEventType_HWC_COMPOSITION_QUEUED;
-  static const BufferEventType FALLBACK_COMPOSITION = GraphicsFrameEvent_BufferEventType_FALLBACK_COMPOSITION;
-  static const BufferEventType PRESENT_FENCE = GraphicsFrameEvent_BufferEventType_PRESENT_FENCE;
-  static const BufferEventType RELEASE_FENCE = GraphicsFrameEvent_BufferEventType_RELEASE_FENCE;
-  static const BufferEventType MODIFY = GraphicsFrameEvent_BufferEventType_MODIFY;
-  static const BufferEventType DETACH = GraphicsFrameEvent_BufferEventType_DETACH;
-  static const BufferEventType ATTACH = GraphicsFrameEvent_BufferEventType_ATTACH;
-  static const BufferEventType CANCEL = GraphicsFrameEvent_BufferEventType_CANCEL;
-
-  using FieldMetadata_BufferEvent =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      GraphicsFrameEvent_BufferEvent,
-      GraphicsFrameEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_BufferEvent kBufferEvent() { return {}; }
-  template <typename T = GraphicsFrameEvent_BufferEvent> T* set_buffer_event() {
-    return BeginNestedMessage<T>(1);
-  }
-
-};
-
-class GraphicsFrameEvent_BufferEvent_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/5, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  GraphicsFrameEvent_BufferEvent_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit GraphicsFrameEvent_BufferEvent_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit GraphicsFrameEvent_BufferEvent_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_frame_number() const { return at<1>().valid(); }
-  uint32_t frame_number() const { return at<1>().as_uint32(); }
-  bool has_type() const { return at<2>().valid(); }
-  int32_t type() const { return at<2>().as_int32(); }
-  bool has_layer_name() const { return at<3>().valid(); }
-  ::protozero::ConstChars layer_name() const { return at<3>().as_string(); }
-  bool has_duration_ns() const { return at<4>().valid(); }
-  uint64_t duration_ns() const { return at<4>().as_uint64(); }
-  bool has_buffer_id() const { return at<5>().valid(); }
-  uint32_t buffer_id() const { return at<5>().as_uint32(); }
-};
-
-class GraphicsFrameEvent_BufferEvent : public ::protozero::Message {
- public:
-  using Decoder = GraphicsFrameEvent_BufferEvent_Decoder;
-  enum : int32_t {
-    kFrameNumberFieldNumber = 1,
-    kTypeFieldNumber = 2,
-    kLayerNameFieldNumber = 3,
-    kDurationNsFieldNumber = 4,
-    kBufferIdFieldNumber = 5,
-  };
-
-  using FieldMetadata_FrameNumber =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      GraphicsFrameEvent_BufferEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_FrameNumber kFrameNumber() { return {}; }
-  void set_frame_number(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_FrameNumber::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Type =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kEnum,
-      ::perfetto::protos::pbzero::GraphicsFrameEvent_BufferEventType,
-      GraphicsFrameEvent_BufferEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Type kType() { return {}; }
-  void set_type(::perfetto::protos::pbzero::GraphicsFrameEvent_BufferEventType value) {
-    static constexpr uint32_t field_id = FieldMetadata_Type::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kEnum>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_LayerName =
-    ::protozero::proto_utils::FieldMetadata<
-      3,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kString,
-      std::string,
-      GraphicsFrameEvent_BufferEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_LayerName kLayerName() { return {}; }
-  void set_layer_name(const char* data, size_t size) {
-    AppendBytes(FieldMetadata_LayerName::kFieldId, data, size);
-  }
-  void set_layer_name(std::string value) {
-    static constexpr uint32_t field_id = FieldMetadata_LayerName::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kString>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_DurationNs =
-    ::protozero::proto_utils::FieldMetadata<
-      4,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      GraphicsFrameEvent_BufferEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_DurationNs kDurationNs() { return {}; }
-  void set_duration_ns(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_DurationNs::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_BufferId =
-    ::protozero::proto_utils::FieldMetadata<
-      5,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      GraphicsFrameEvent_BufferEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_BufferId kBufferId() { return {}; }
-  void set_buffer_id(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_BufferId::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-};
-
-} // Namespace.
-} // Namespace.
-} // Namespace.
-#endif  // Include guard.
-// gen_amalgamated begin header: gen/protos/perfetto/trace/android/initial_display_state.pbzero.h
-// Autogenerated by the ProtoZero compiler plugin. DO NOT EDIT.
-
-#ifndef PERFETTO_PROTOS_PROTOS_PERFETTO_TRACE_ANDROID_INITIAL_DISPLAY_STATE_PROTO_H_
-#define PERFETTO_PROTOS_PROTOS_PERFETTO_TRACE_ANDROID_INITIAL_DISPLAY_STATE_PROTO_H_
-
-#include <stddef.h>
-#include <stdint.h>
-
-// gen_amalgamated expanded: #include "perfetto/protozero/field_writer.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/message.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/packed_repeated_fields.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/proto_decoder.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/proto_utils.h"
-
-namespace perfetto {
-namespace protos {
-namespace pbzero {
-
-
-class InitialDisplayState_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/2, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  InitialDisplayState_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit InitialDisplayState_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit InitialDisplayState_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_display_state() const { return at<1>().valid(); }
-  int32_t display_state() const { return at<1>().as_int32(); }
-  bool has_brightness() const { return at<2>().valid(); }
-  double brightness() const { return at<2>().as_double(); }
-};
-
-class InitialDisplayState : public ::protozero::Message {
- public:
-  using Decoder = InitialDisplayState_Decoder;
-  enum : int32_t {
-    kDisplayStateFieldNumber = 1,
-    kBrightnessFieldNumber = 2,
-  };
-
-  using FieldMetadata_DisplayState =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt32,
-      int32_t,
-      InitialDisplayState>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_DisplayState kDisplayState() { return {}; }
-  void set_display_state(int32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_DisplayState::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Brightness =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kDouble,
-      double,
-      InitialDisplayState>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Brightness kBrightness() { return {}; }
-  void set_brightness(double value) {
-    static constexpr uint32_t field_id = FieldMetadata_Brightness::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kDouble>
-        ::Append(*this, field_id, value);
-  }
-};
-
-} // Namespace.
-} // Namespace.
-} // Namespace.
-#endif  // Include guard.
-// gen_amalgamated begin header: gen/protos/perfetto/trace/android/packages_list.pbzero.h
-// Autogenerated by the ProtoZero compiler plugin. DO NOT EDIT.
-
-#ifndef PERFETTO_PROTOS_PROTOS_PERFETTO_TRACE_ANDROID_PACKAGES_LIST_PROTO_H_
-#define PERFETTO_PROTOS_PROTOS_PERFETTO_TRACE_ANDROID_PACKAGES_LIST_PROTO_H_
-
-#include <stddef.h>
-#include <stdint.h>
-
-// gen_amalgamated expanded: #include "perfetto/protozero/field_writer.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/message.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/packed_repeated_fields.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/proto_decoder.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/proto_utils.h"
-
-namespace perfetto {
-namespace protos {
-namespace pbzero {
-
-class PackagesList_PackageInfo;
-
-class PackagesList_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/3, /*HAS_NONPACKED_REPEATED_FIELDS=*/true> {
- public:
-  PackagesList_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit PackagesList_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit PackagesList_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_packages() const { return at<1>().valid(); }
-  ::protozero::RepeatedFieldIterator<::protozero::ConstBytes> packages() const { return GetRepeated<::protozero::ConstBytes>(1); }
-  bool has_parse_error() const { return at<2>().valid(); }
-  bool parse_error() const { return at<2>().as_bool(); }
-  bool has_read_error() const { return at<3>().valid(); }
-  bool read_error() const { return at<3>().as_bool(); }
-};
-
-class PackagesList : public ::protozero::Message {
- public:
-  using Decoder = PackagesList_Decoder;
-  enum : int32_t {
-    kPackagesFieldNumber = 1,
-    kParseErrorFieldNumber = 2,
-    kReadErrorFieldNumber = 3,
-  };
-  using PackageInfo = ::perfetto::protos::pbzero::PackagesList_PackageInfo;
-
-  using FieldMetadata_Packages =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kRepeatedNotPacked,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      PackagesList_PackageInfo,
-      PackagesList>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Packages kPackages() { return {}; }
-  template <typename T = PackagesList_PackageInfo> T* add_packages() {
-    return BeginNestedMessage<T>(1);
-  }
-
-
-  using FieldMetadata_ParseError =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kBool,
-      bool,
-      PackagesList>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_ParseError kParseError() { return {}; }
-  void set_parse_error(bool value) {
-    static constexpr uint32_t field_id = FieldMetadata_ParseError::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kBool>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_ReadError =
-    ::protozero::proto_utils::FieldMetadata<
-      3,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kBool,
-      bool,
-      PackagesList>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_ReadError kReadError() { return {}; }
-  void set_read_error(bool value) {
-    static constexpr uint32_t field_id = FieldMetadata_ReadError::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kBool>
-        ::Append(*this, field_id, value);
-  }
-};
-
-class PackagesList_PackageInfo_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/5, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  PackagesList_PackageInfo_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit PackagesList_PackageInfo_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit PackagesList_PackageInfo_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_name() const { return at<1>().valid(); }
-  ::protozero::ConstChars name() const { return at<1>().as_string(); }
-  bool has_uid() const { return at<2>().valid(); }
-  uint64_t uid() const { return at<2>().as_uint64(); }
-  bool has_debuggable() const { return at<3>().valid(); }
-  bool debuggable() const { return at<3>().as_bool(); }
-  bool has_profileable_from_shell() const { return at<4>().valid(); }
-  bool profileable_from_shell() const { return at<4>().as_bool(); }
-  bool has_version_code() const { return at<5>().valid(); }
-  int64_t version_code() const { return at<5>().as_int64(); }
-};
-
-class PackagesList_PackageInfo : public ::protozero::Message {
- public:
-  using Decoder = PackagesList_PackageInfo_Decoder;
-  enum : int32_t {
-    kNameFieldNumber = 1,
-    kUidFieldNumber = 2,
-    kDebuggableFieldNumber = 3,
-    kProfileableFromShellFieldNumber = 4,
-    kVersionCodeFieldNumber = 5,
-  };
-
-  using FieldMetadata_Name =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kString,
-      std::string,
-      PackagesList_PackageInfo>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Name kName() { return {}; }
-  void set_name(const char* data, size_t size) {
-    AppendBytes(FieldMetadata_Name::kFieldId, data, size);
-  }
-  void set_name(std::string value) {
-    static constexpr uint32_t field_id = FieldMetadata_Name::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kString>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Uid =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      PackagesList_PackageInfo>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Uid kUid() { return {}; }
-  void set_uid(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Uid::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Debuggable =
-    ::protozero::proto_utils::FieldMetadata<
-      3,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kBool,
-      bool,
-      PackagesList_PackageInfo>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Debuggable kDebuggable() { return {}; }
-  void set_debuggable(bool value) {
-    static constexpr uint32_t field_id = FieldMetadata_Debuggable::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kBool>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_ProfileableFromShell =
-    ::protozero::proto_utils::FieldMetadata<
-      4,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kBool,
-      bool,
-      PackagesList_PackageInfo>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_ProfileableFromShell kProfileableFromShell() { return {}; }
-  void set_profileable_from_shell(bool value) {
-    static constexpr uint32_t field_id = FieldMetadata_ProfileableFromShell::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kBool>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_VersionCode =
-    ::protozero::proto_utils::FieldMetadata<
-      5,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt64,
-      int64_t,
-      PackagesList_PackageInfo>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_VersionCode kVersionCode() { return {}; }
-  void set_version_code(int64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_VersionCode::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt64>
-        ::Append(*this, field_id, value);
-  }
-};
-
-} // Namespace.
-} // Namespace.
-} // Namespace.
-#endif  // Include guard.
-// gen_amalgamated begin header: gen/protos/perfetto/trace/chrome/chrome_benchmark_metadata.pbzero.h
-// Autogenerated by the ProtoZero compiler plugin. DO NOT EDIT.
-
-#ifndef PERFETTO_PROTOS_PROTOS_PERFETTO_TRACE_CHROME_CHROME_BENCHMARK_METADATA_PROTO_H_
-#define PERFETTO_PROTOS_PROTOS_PERFETTO_TRACE_CHROME_CHROME_BENCHMARK_METADATA_PROTO_H_
-
-#include <stddef.h>
-#include <stdint.h>
-
-// gen_amalgamated expanded: #include "perfetto/protozero/field_writer.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/message.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/packed_repeated_fields.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/proto_decoder.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/proto_utils.h"
-
-namespace perfetto {
-namespace protos {
-namespace pbzero {
-
-
-class ChromeBenchmarkMetadata_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/9, /*HAS_NONPACKED_REPEATED_FIELDS=*/true> {
- public:
-  ChromeBenchmarkMetadata_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit ChromeBenchmarkMetadata_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit ChromeBenchmarkMetadata_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_benchmark_start_time_us() const { return at<1>().valid(); }
-  int64_t benchmark_start_time_us() const { return at<1>().as_int64(); }
-  bool has_story_run_time_us() const { return at<2>().valid(); }
-  int64_t story_run_time_us() const { return at<2>().as_int64(); }
-  bool has_benchmark_name() const { return at<3>().valid(); }
-  ::protozero::ConstChars benchmark_name() const { return at<3>().as_string(); }
-  bool has_benchmark_description() const { return at<4>().valid(); }
-  ::protozero::ConstChars benchmark_description() const { return at<4>().as_string(); }
-  bool has_label() const { return at<5>().valid(); }
-  ::protozero::ConstChars label() const { return at<5>().as_string(); }
-  bool has_story_name() const { return at<6>().valid(); }
-  ::protozero::ConstChars story_name() const { return at<6>().as_string(); }
-  bool has_story_tags() const { return at<7>().valid(); }
-  ::protozero::RepeatedFieldIterator<::protozero::ConstChars> story_tags() const { return GetRepeated<::protozero::ConstChars>(7); }
-  bool has_story_run_index() const { return at<8>().valid(); }
-  int32_t story_run_index() const { return at<8>().as_int32(); }
-  bool has_had_failures() const { return at<9>().valid(); }
-  bool had_failures() const { return at<9>().as_bool(); }
-};
-
-class ChromeBenchmarkMetadata : public ::protozero::Message {
- public:
-  using Decoder = ChromeBenchmarkMetadata_Decoder;
-  enum : int32_t {
-    kBenchmarkStartTimeUsFieldNumber = 1,
-    kStoryRunTimeUsFieldNumber = 2,
-    kBenchmarkNameFieldNumber = 3,
-    kBenchmarkDescriptionFieldNumber = 4,
-    kLabelFieldNumber = 5,
-    kStoryNameFieldNumber = 6,
-    kStoryTagsFieldNumber = 7,
-    kStoryRunIndexFieldNumber = 8,
-    kHadFailuresFieldNumber = 9,
-  };
-
-  using FieldMetadata_BenchmarkStartTimeUs =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt64,
-      int64_t,
-      ChromeBenchmarkMetadata>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_BenchmarkStartTimeUs kBenchmarkStartTimeUs() { return {}; }
-  void set_benchmark_start_time_us(int64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_BenchmarkStartTimeUs::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_StoryRunTimeUs =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt64,
-      int64_t,
-      ChromeBenchmarkMetadata>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_StoryRunTimeUs kStoryRunTimeUs() { return {}; }
-  void set_story_run_time_us(int64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_StoryRunTimeUs::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_BenchmarkName =
-    ::protozero::proto_utils::FieldMetadata<
-      3,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kString,
-      std::string,
-      ChromeBenchmarkMetadata>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_BenchmarkName kBenchmarkName() { return {}; }
-  void set_benchmark_name(const char* data, size_t size) {
-    AppendBytes(FieldMetadata_BenchmarkName::kFieldId, data, size);
-  }
-  void set_benchmark_name(std::string value) {
-    static constexpr uint32_t field_id = FieldMetadata_BenchmarkName::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kString>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_BenchmarkDescription =
-    ::protozero::proto_utils::FieldMetadata<
-      4,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kString,
-      std::string,
-      ChromeBenchmarkMetadata>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_BenchmarkDescription kBenchmarkDescription() { return {}; }
-  void set_benchmark_description(const char* data, size_t size) {
-    AppendBytes(FieldMetadata_BenchmarkDescription::kFieldId, data, size);
-  }
-  void set_benchmark_description(std::string value) {
-    static constexpr uint32_t field_id = FieldMetadata_BenchmarkDescription::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kString>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Label =
-    ::protozero::proto_utils::FieldMetadata<
-      5,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kString,
-      std::string,
-      ChromeBenchmarkMetadata>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Label kLabel() { return {}; }
-  void set_label(const char* data, size_t size) {
-    AppendBytes(FieldMetadata_Label::kFieldId, data, size);
-  }
-  void set_label(std::string value) {
-    static constexpr uint32_t field_id = FieldMetadata_Label::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kString>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_StoryName =
-    ::protozero::proto_utils::FieldMetadata<
-      6,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kString,
-      std::string,
-      ChromeBenchmarkMetadata>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_StoryName kStoryName() { return {}; }
-  void set_story_name(const char* data, size_t size) {
-    AppendBytes(FieldMetadata_StoryName::kFieldId, data, size);
-  }
-  void set_story_name(std::string value) {
-    static constexpr uint32_t field_id = FieldMetadata_StoryName::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kString>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_StoryTags =
-    ::protozero::proto_utils::FieldMetadata<
-      7,
-      ::protozero::proto_utils::RepetitionType::kRepeatedNotPacked,
-      ::protozero::proto_utils::ProtoSchemaType::kString,
-      std::string,
-      ChromeBenchmarkMetadata>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_StoryTags kStoryTags() { return {}; }
-  void add_story_tags(const char* data, size_t size) {
-    AppendBytes(FieldMetadata_StoryTags::kFieldId, data, size);
-  }
-  void add_story_tags(std::string value) {
-    static constexpr uint32_t field_id = FieldMetadata_StoryTags::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kString>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_StoryRunIndex =
-    ::protozero::proto_utils::FieldMetadata<
-      8,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt32,
-      int32_t,
-      ChromeBenchmarkMetadata>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_StoryRunIndex kStoryRunIndex() { return {}; }
-  void set_story_run_index(int32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_StoryRunIndex::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_HadFailures =
-    ::protozero::proto_utils::FieldMetadata<
-      9,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kBool,
-      bool,
-      ChromeBenchmarkMetadata>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_HadFailures kHadFailures() { return {}; }
-  void set_had_failures(bool value) {
-    static constexpr uint32_t field_id = FieldMetadata_HadFailures::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kBool>
-        ::Append(*this, field_id, value);
-  }
-};
-
-} // Namespace.
-} // Namespace.
-} // Namespace.
-#endif  // Include guard.
-// gen_amalgamated begin header: gen/protos/perfetto/trace/chrome/chrome_metadata.pbzero.h
-// Autogenerated by the ProtoZero compiler plugin. DO NOT EDIT.
-
-#ifndef PERFETTO_PROTOS_PROTOS_PERFETTO_TRACE_CHROME_CHROME_METADATA_PROTO_H_
-#define PERFETTO_PROTOS_PROTOS_PERFETTO_TRACE_CHROME_CHROME_METADATA_PROTO_H_
-
-#include <stddef.h>
-#include <stdint.h>
-
-// gen_amalgamated expanded: #include "perfetto/protozero/field_writer.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/message.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/packed_repeated_fields.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/proto_decoder.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/proto_utils.h"
-
-namespace perfetto {
-namespace protos {
-namespace pbzero {
-
-class BackgroundTracingMetadata;
-class BackgroundTracingMetadata_TriggerRule;
-class BackgroundTracingMetadata_TriggerRule_HistogramRule;
-class BackgroundTracingMetadata_TriggerRule_NamedRule;
-enum BackgroundTracingMetadata_TriggerRule_NamedRule_EventType : int32_t;
-enum BackgroundTracingMetadata_TriggerRule_TriggerType : int32_t;
-
-enum BackgroundTracingMetadata_TriggerRule_TriggerType : int32_t {
-  BackgroundTracingMetadata_TriggerRule_TriggerType_TRIGGER_UNSPECIFIED = 0,
-  BackgroundTracingMetadata_TriggerRule_TriggerType_MONITOR_AND_DUMP_WHEN_SPECIFIC_HISTOGRAM_AND_VALUE = 1,
-  BackgroundTracingMetadata_TriggerRule_TriggerType_MONITOR_AND_DUMP_WHEN_TRIGGER_NAMED = 2,
-};
-
-const BackgroundTracingMetadata_TriggerRule_TriggerType BackgroundTracingMetadata_TriggerRule_TriggerType_MIN = BackgroundTracingMetadata_TriggerRule_TriggerType_TRIGGER_UNSPECIFIED;
-const BackgroundTracingMetadata_TriggerRule_TriggerType BackgroundTracingMetadata_TriggerRule_TriggerType_MAX = BackgroundTracingMetadata_TriggerRule_TriggerType_MONITOR_AND_DUMP_WHEN_TRIGGER_NAMED;
-
-enum BackgroundTracingMetadata_TriggerRule_NamedRule_EventType : int32_t {
-  BackgroundTracingMetadata_TriggerRule_NamedRule_EventType_UNSPECIFIED = 0,
-  BackgroundTracingMetadata_TriggerRule_NamedRule_EventType_SESSION_RESTORE = 1,
-  BackgroundTracingMetadata_TriggerRule_NamedRule_EventType_NAVIGATION = 2,
-  BackgroundTracingMetadata_TriggerRule_NamedRule_EventType_STARTUP = 3,
-  BackgroundTracingMetadata_TriggerRule_NamedRule_EventType_REACHED_CODE = 4,
-  BackgroundTracingMetadata_TriggerRule_NamedRule_EventType_CONTENT_TRIGGER = 5,
-  BackgroundTracingMetadata_TriggerRule_NamedRule_EventType_TEST_RULE = 1000,
-};
-
-const BackgroundTracingMetadata_TriggerRule_NamedRule_EventType BackgroundTracingMetadata_TriggerRule_NamedRule_EventType_MIN = BackgroundTracingMetadata_TriggerRule_NamedRule_EventType_UNSPECIFIED;
-const BackgroundTracingMetadata_TriggerRule_NamedRule_EventType BackgroundTracingMetadata_TriggerRule_NamedRule_EventType_MAX = BackgroundTracingMetadata_TriggerRule_NamedRule_EventType_TEST_RULE;
-
-class BackgroundTracingMetadata_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/2, /*HAS_NONPACKED_REPEATED_FIELDS=*/true> {
- public:
-  BackgroundTracingMetadata_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit BackgroundTracingMetadata_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit BackgroundTracingMetadata_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_triggered_rule() const { return at<1>().valid(); }
-  ::protozero::ConstBytes triggered_rule() const { return at<1>().as_bytes(); }
-  bool has_active_rules() const { return at<2>().valid(); }
-  ::protozero::RepeatedFieldIterator<::protozero::ConstBytes> active_rules() const { return GetRepeated<::protozero::ConstBytes>(2); }
-};
-
-class BackgroundTracingMetadata : public ::protozero::Message {
- public:
-  using Decoder = BackgroundTracingMetadata_Decoder;
-  enum : int32_t {
-    kTriggeredRuleFieldNumber = 1,
-    kActiveRulesFieldNumber = 2,
-  };
-  using TriggerRule = ::perfetto::protos::pbzero::BackgroundTracingMetadata_TriggerRule;
-
-  using FieldMetadata_TriggeredRule =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      BackgroundTracingMetadata_TriggerRule,
-      BackgroundTracingMetadata>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_TriggeredRule kTriggeredRule() { return {}; }
-  template <typename T = BackgroundTracingMetadata_TriggerRule> T* set_triggered_rule() {
-    return BeginNestedMessage<T>(1);
-  }
-
-
-  using FieldMetadata_ActiveRules =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kRepeatedNotPacked,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      BackgroundTracingMetadata_TriggerRule,
-      BackgroundTracingMetadata>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_ActiveRules kActiveRules() { return {}; }
-  template <typename T = BackgroundTracingMetadata_TriggerRule> T* add_active_rules() {
-    return BeginNestedMessage<T>(2);
-  }
-
-};
-
-class BackgroundTracingMetadata_TriggerRule_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/3, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  BackgroundTracingMetadata_TriggerRule_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit BackgroundTracingMetadata_TriggerRule_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit BackgroundTracingMetadata_TriggerRule_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_trigger_type() const { return at<1>().valid(); }
-  int32_t trigger_type() const { return at<1>().as_int32(); }
-  bool has_histogram_rule() const { return at<2>().valid(); }
-  ::protozero::ConstBytes histogram_rule() const { return at<2>().as_bytes(); }
-  bool has_named_rule() const { return at<3>().valid(); }
-  ::protozero::ConstBytes named_rule() const { return at<3>().as_bytes(); }
-};
-
-class BackgroundTracingMetadata_TriggerRule : public ::protozero::Message {
- public:
-  using Decoder = BackgroundTracingMetadata_TriggerRule_Decoder;
-  enum : int32_t {
-    kTriggerTypeFieldNumber = 1,
-    kHistogramRuleFieldNumber = 2,
-    kNamedRuleFieldNumber = 3,
-  };
-  using HistogramRule = ::perfetto::protos::pbzero::BackgroundTracingMetadata_TriggerRule_HistogramRule;
-  using NamedRule = ::perfetto::protos::pbzero::BackgroundTracingMetadata_TriggerRule_NamedRule;
-  using TriggerType = ::perfetto::protos::pbzero::BackgroundTracingMetadata_TriggerRule_TriggerType;
-  static const TriggerType TRIGGER_UNSPECIFIED = BackgroundTracingMetadata_TriggerRule_TriggerType_TRIGGER_UNSPECIFIED;
-  static const TriggerType MONITOR_AND_DUMP_WHEN_SPECIFIC_HISTOGRAM_AND_VALUE = BackgroundTracingMetadata_TriggerRule_TriggerType_MONITOR_AND_DUMP_WHEN_SPECIFIC_HISTOGRAM_AND_VALUE;
-  static const TriggerType MONITOR_AND_DUMP_WHEN_TRIGGER_NAMED = BackgroundTracingMetadata_TriggerRule_TriggerType_MONITOR_AND_DUMP_WHEN_TRIGGER_NAMED;
-
-  using FieldMetadata_TriggerType =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kEnum,
-      ::perfetto::protos::pbzero::BackgroundTracingMetadata_TriggerRule_TriggerType,
-      BackgroundTracingMetadata_TriggerRule>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_TriggerType kTriggerType() { return {}; }
-  void set_trigger_type(::perfetto::protos::pbzero::BackgroundTracingMetadata_TriggerRule_TriggerType value) {
-    static constexpr uint32_t field_id = FieldMetadata_TriggerType::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kEnum>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_HistogramRule =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      BackgroundTracingMetadata_TriggerRule_HistogramRule,
-      BackgroundTracingMetadata_TriggerRule>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_HistogramRule kHistogramRule() { return {}; }
-  template <typename T = BackgroundTracingMetadata_TriggerRule_HistogramRule> T* set_histogram_rule() {
-    return BeginNestedMessage<T>(2);
-  }
-
-
-  using FieldMetadata_NamedRule =
-    ::protozero::proto_utils::FieldMetadata<
-      3,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      BackgroundTracingMetadata_TriggerRule_NamedRule,
-      BackgroundTracingMetadata_TriggerRule>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_NamedRule kNamedRule() { return {}; }
-  template <typename T = BackgroundTracingMetadata_TriggerRule_NamedRule> T* set_named_rule() {
-    return BeginNestedMessage<T>(3);
-  }
-
-};
-
-class BackgroundTracingMetadata_TriggerRule_NamedRule_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/2, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  BackgroundTracingMetadata_TriggerRule_NamedRule_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit BackgroundTracingMetadata_TriggerRule_NamedRule_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit BackgroundTracingMetadata_TriggerRule_NamedRule_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_event_type() const { return at<1>().valid(); }
-  int32_t event_type() const { return at<1>().as_int32(); }
-  bool has_content_trigger_name_hash() const { return at<2>().valid(); }
-  uint64_t content_trigger_name_hash() const { return at<2>().as_uint64(); }
-};
-
-class BackgroundTracingMetadata_TriggerRule_NamedRule : public ::protozero::Message {
- public:
-  using Decoder = BackgroundTracingMetadata_TriggerRule_NamedRule_Decoder;
-  enum : int32_t {
-    kEventTypeFieldNumber = 1,
-    kContentTriggerNameHashFieldNumber = 2,
-  };
-  using EventType = ::perfetto::protos::pbzero::BackgroundTracingMetadata_TriggerRule_NamedRule_EventType;
-  static const EventType UNSPECIFIED = BackgroundTracingMetadata_TriggerRule_NamedRule_EventType_UNSPECIFIED;
-  static const EventType SESSION_RESTORE = BackgroundTracingMetadata_TriggerRule_NamedRule_EventType_SESSION_RESTORE;
-  static const EventType NAVIGATION = BackgroundTracingMetadata_TriggerRule_NamedRule_EventType_NAVIGATION;
-  static const EventType STARTUP = BackgroundTracingMetadata_TriggerRule_NamedRule_EventType_STARTUP;
-  static const EventType REACHED_CODE = BackgroundTracingMetadata_TriggerRule_NamedRule_EventType_REACHED_CODE;
-  static const EventType CONTENT_TRIGGER = BackgroundTracingMetadata_TriggerRule_NamedRule_EventType_CONTENT_TRIGGER;
-  static const EventType TEST_RULE = BackgroundTracingMetadata_TriggerRule_NamedRule_EventType_TEST_RULE;
-
-  using FieldMetadata_EventType =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kEnum,
-      ::perfetto::protos::pbzero::BackgroundTracingMetadata_TriggerRule_NamedRule_EventType,
-      BackgroundTracingMetadata_TriggerRule_NamedRule>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_EventType kEventType() { return {}; }
-  void set_event_type(::perfetto::protos::pbzero::BackgroundTracingMetadata_TriggerRule_NamedRule_EventType value) {
-    static constexpr uint32_t field_id = FieldMetadata_EventType::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kEnum>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_ContentTriggerNameHash =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kFixed64,
-      uint64_t,
-      BackgroundTracingMetadata_TriggerRule_NamedRule>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_ContentTriggerNameHash kContentTriggerNameHash() { return {}; }
-  void set_content_trigger_name_hash(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_ContentTriggerNameHash::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kFixed64>
-        ::Append(*this, field_id, value);
-  }
-};
-
-class BackgroundTracingMetadata_TriggerRule_HistogramRule_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/3, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  BackgroundTracingMetadata_TriggerRule_HistogramRule_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit BackgroundTracingMetadata_TriggerRule_HistogramRule_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit BackgroundTracingMetadata_TriggerRule_HistogramRule_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_histogram_name_hash() const { return at<1>().valid(); }
-  uint64_t histogram_name_hash() const { return at<1>().as_uint64(); }
-  bool has_histogram_min_trigger() const { return at<2>().valid(); }
-  int64_t histogram_min_trigger() const { return at<2>().as_int64(); }
-  bool has_histogram_max_trigger() const { return at<3>().valid(); }
-  int64_t histogram_max_trigger() const { return at<3>().as_int64(); }
-};
-
-class BackgroundTracingMetadata_TriggerRule_HistogramRule : public ::protozero::Message {
- public:
-  using Decoder = BackgroundTracingMetadata_TriggerRule_HistogramRule_Decoder;
-  enum : int32_t {
-    kHistogramNameHashFieldNumber = 1,
-    kHistogramMinTriggerFieldNumber = 2,
-    kHistogramMaxTriggerFieldNumber = 3,
-  };
-
-  using FieldMetadata_HistogramNameHash =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kFixed64,
-      uint64_t,
-      BackgroundTracingMetadata_TriggerRule_HistogramRule>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_HistogramNameHash kHistogramNameHash() { return {}; }
-  void set_histogram_name_hash(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_HistogramNameHash::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kFixed64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_HistogramMinTrigger =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt64,
-      int64_t,
-      BackgroundTracingMetadata_TriggerRule_HistogramRule>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_HistogramMinTrigger kHistogramMinTrigger() { return {}; }
-  void set_histogram_min_trigger(int64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_HistogramMinTrigger::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_HistogramMaxTrigger =
-    ::protozero::proto_utils::FieldMetadata<
-      3,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt64,
-      int64_t,
-      BackgroundTracingMetadata_TriggerRule_HistogramRule>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_HistogramMaxTrigger kHistogramMaxTrigger() { return {}; }
-  void set_histogram_max_trigger(int64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_HistogramMaxTrigger::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt64>
-        ::Append(*this, field_id, value);
-  }
-};
-
-class ChromeMetadataPacket_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/3, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  ChromeMetadataPacket_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit ChromeMetadataPacket_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit ChromeMetadataPacket_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_background_tracing_metadata() const { return at<1>().valid(); }
-  ::protozero::ConstBytes background_tracing_metadata() const { return at<1>().as_bytes(); }
-  bool has_chrome_version_code() const { return at<2>().valid(); }
-  int32_t chrome_version_code() const { return at<2>().as_int32(); }
-  bool has_enabled_categories() const { return at<3>().valid(); }
-  ::protozero::ConstChars enabled_categories() const { return at<3>().as_string(); }
-};
-
-class ChromeMetadataPacket : public ::protozero::Message {
- public:
-  using Decoder = ChromeMetadataPacket_Decoder;
-  enum : int32_t {
-    kBackgroundTracingMetadataFieldNumber = 1,
-    kChromeVersionCodeFieldNumber = 2,
-    kEnabledCategoriesFieldNumber = 3,
-  };
-
-  using FieldMetadata_BackgroundTracingMetadata =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      BackgroundTracingMetadata,
-      ChromeMetadataPacket>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_BackgroundTracingMetadata kBackgroundTracingMetadata() { return {}; }
-  template <typename T = BackgroundTracingMetadata> T* set_background_tracing_metadata() {
-    return BeginNestedMessage<T>(1);
-  }
-
-
-  using FieldMetadata_ChromeVersionCode =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt32,
-      int32_t,
-      ChromeMetadataPacket>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_ChromeVersionCode kChromeVersionCode() { return {}; }
-  void set_chrome_version_code(int32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_ChromeVersionCode::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_EnabledCategories =
-    ::protozero::proto_utils::FieldMetadata<
-      3,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kString,
-      std::string,
-      ChromeMetadataPacket>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_EnabledCategories kEnabledCategories() { return {}; }
-  void set_enabled_categories(const char* data, size_t size) {
-    AppendBytes(FieldMetadata_EnabledCategories::kFieldId, data, size);
-  }
-  void set_enabled_categories(std::string value) {
-    static constexpr uint32_t field_id = FieldMetadata_EnabledCategories::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kString>
-        ::Append(*this, field_id, value);
-  }
-};
-
-} // Namespace.
-} // Namespace.
-} // Namespace.
-#endif  // Include guard.
-// gen_amalgamated begin header: gen/protos/perfetto/trace/chrome/chrome_trace_event.pbzero.h
-// Autogenerated by the ProtoZero compiler plugin. DO NOT EDIT.
-
-#ifndef PERFETTO_PROTOS_PROTOS_PERFETTO_TRACE_CHROME_CHROME_TRACE_EVENT_PROTO_H_
-#define PERFETTO_PROTOS_PROTOS_PERFETTO_TRACE_CHROME_CHROME_TRACE_EVENT_PROTO_H_
-
-#include <stddef.h>
-#include <stdint.h>
-
-// gen_amalgamated expanded: #include "perfetto/protozero/field_writer.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/message.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/packed_repeated_fields.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/proto_decoder.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/proto_utils.h"
-
-namespace perfetto {
-namespace protos {
-namespace pbzero {
-
-class ChromeLegacyJsonTrace;
-class ChromeMetadata;
-class ChromeStringTableEntry;
-class ChromeTraceEvent;
-class ChromeTraceEvent_Arg;
-class ChromeTracedValue;
-enum ChromeLegacyJsonTrace_TraceType : int32_t;
-enum ChromeTracedValue_NestedType : int32_t;
-
-enum ChromeLegacyJsonTrace_TraceType : int32_t {
-  ChromeLegacyJsonTrace_TraceType_USER_TRACE = 0,
-  ChromeLegacyJsonTrace_TraceType_SYSTEM_TRACE = 1,
-};
-
-const ChromeLegacyJsonTrace_TraceType ChromeLegacyJsonTrace_TraceType_MIN = ChromeLegacyJsonTrace_TraceType_USER_TRACE;
-const ChromeLegacyJsonTrace_TraceType ChromeLegacyJsonTrace_TraceType_MAX = ChromeLegacyJsonTrace_TraceType_SYSTEM_TRACE;
-
-enum ChromeTracedValue_NestedType : int32_t {
-  ChromeTracedValue_NestedType_DICT = 0,
-  ChromeTracedValue_NestedType_ARRAY = 1,
-};
-
-const ChromeTracedValue_NestedType ChromeTracedValue_NestedType_MIN = ChromeTracedValue_NestedType_DICT;
-const ChromeTracedValue_NestedType ChromeTracedValue_NestedType_MAX = ChromeTracedValue_NestedType_ARRAY;
-
-class ChromeEventBundle_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/5, /*HAS_NONPACKED_REPEATED_FIELDS=*/true> {
- public:
-  ChromeEventBundle_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit ChromeEventBundle_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit ChromeEventBundle_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_trace_events() const { return at<1>().valid(); }
-  ::protozero::RepeatedFieldIterator<::protozero::ConstBytes> trace_events() const { return GetRepeated<::protozero::ConstBytes>(1); }
-  bool has_metadata() const { return at<2>().valid(); }
-  ::protozero::RepeatedFieldIterator<::protozero::ConstBytes> metadata() const { return GetRepeated<::protozero::ConstBytes>(2); }
-  bool has_legacy_ftrace_output() const { return at<4>().valid(); }
-  ::protozero::RepeatedFieldIterator<::protozero::ConstChars> legacy_ftrace_output() const { return GetRepeated<::protozero::ConstChars>(4); }
-  bool has_legacy_json_trace() const { return at<5>().valid(); }
-  ::protozero::RepeatedFieldIterator<::protozero::ConstBytes> legacy_json_trace() const { return GetRepeated<::protozero::ConstBytes>(5); }
-  bool has_string_table() const { return at<3>().valid(); }
-  ::protozero::RepeatedFieldIterator<::protozero::ConstBytes> string_table() const { return GetRepeated<::protozero::ConstBytes>(3); }
-};
-
-class ChromeEventBundle : public ::protozero::Message {
- public:
-  using Decoder = ChromeEventBundle_Decoder;
-  enum : int32_t {
-    kTraceEventsFieldNumber = 1,
-    kMetadataFieldNumber = 2,
-    kLegacyFtraceOutputFieldNumber = 4,
-    kLegacyJsonTraceFieldNumber = 5,
-    kStringTableFieldNumber = 3,
-  };
-
-  using FieldMetadata_TraceEvents =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kRepeatedNotPacked,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      ChromeTraceEvent,
-      ChromeEventBundle>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_TraceEvents kTraceEvents() { return {}; }
-  template <typename T = ChromeTraceEvent> T* add_trace_events() {
-    return BeginNestedMessage<T>(1);
-  }
-
-
-  using FieldMetadata_Metadata =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kRepeatedNotPacked,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      ChromeMetadata,
-      ChromeEventBundle>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Metadata kMetadata() { return {}; }
-  template <typename T = ChromeMetadata> T* add_metadata() {
-    return BeginNestedMessage<T>(2);
-  }
-
-
-  using FieldMetadata_LegacyFtraceOutput =
-    ::protozero::proto_utils::FieldMetadata<
-      4,
-      ::protozero::proto_utils::RepetitionType::kRepeatedNotPacked,
-      ::protozero::proto_utils::ProtoSchemaType::kString,
-      std::string,
-      ChromeEventBundle>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_LegacyFtraceOutput kLegacyFtraceOutput() { return {}; }
-  void add_legacy_ftrace_output(const char* data, size_t size) {
-    AppendBytes(FieldMetadata_LegacyFtraceOutput::kFieldId, data, size);
-  }
-  void add_legacy_ftrace_output(std::string value) {
-    static constexpr uint32_t field_id = FieldMetadata_LegacyFtraceOutput::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kString>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_LegacyJsonTrace =
-    ::protozero::proto_utils::FieldMetadata<
-      5,
-      ::protozero::proto_utils::RepetitionType::kRepeatedNotPacked,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      ChromeLegacyJsonTrace,
-      ChromeEventBundle>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_LegacyJsonTrace kLegacyJsonTrace() { return {}; }
-  template <typename T = ChromeLegacyJsonTrace> T* add_legacy_json_trace() {
-    return BeginNestedMessage<T>(5);
-  }
-
-
-  using FieldMetadata_StringTable =
-    ::protozero::proto_utils::FieldMetadata<
-      3,
-      ::protozero::proto_utils::RepetitionType::kRepeatedNotPacked,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      ChromeStringTableEntry,
-      ChromeEventBundle>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_StringTable kStringTable() { return {}; }
-  template <typename T = ChromeStringTableEntry> T* add_string_table() {
-    return BeginNestedMessage<T>(3);
-  }
-
-};
-
-class ChromeLegacyJsonTrace_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/2, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  ChromeLegacyJsonTrace_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit ChromeLegacyJsonTrace_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit ChromeLegacyJsonTrace_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_type() const { return at<1>().valid(); }
-  int32_t type() const { return at<1>().as_int32(); }
-  bool has_data() const { return at<2>().valid(); }
-  ::protozero::ConstChars data() const { return at<2>().as_string(); }
-};
-
-class ChromeLegacyJsonTrace : public ::protozero::Message {
- public:
-  using Decoder = ChromeLegacyJsonTrace_Decoder;
-  enum : int32_t {
-    kTypeFieldNumber = 1,
-    kDataFieldNumber = 2,
-  };
-  using TraceType = ::perfetto::protos::pbzero::ChromeLegacyJsonTrace_TraceType;
-  static const TraceType USER_TRACE = ChromeLegacyJsonTrace_TraceType_USER_TRACE;
-  static const TraceType SYSTEM_TRACE = ChromeLegacyJsonTrace_TraceType_SYSTEM_TRACE;
-
-  using FieldMetadata_Type =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kEnum,
-      ::perfetto::protos::pbzero::ChromeLegacyJsonTrace_TraceType,
-      ChromeLegacyJsonTrace>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Type kType() { return {}; }
-  void set_type(::perfetto::protos::pbzero::ChromeLegacyJsonTrace_TraceType value) {
-    static constexpr uint32_t field_id = FieldMetadata_Type::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kEnum>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Data =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kString,
-      std::string,
-      ChromeLegacyJsonTrace>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Data kData() { return {}; }
-  void set_data(const char* data, size_t size) {
-    AppendBytes(FieldMetadata_Data::kFieldId, data, size);
-  }
-  void set_data(std::string value) {
-    static constexpr uint32_t field_id = FieldMetadata_Data::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kString>
-        ::Append(*this, field_id, value);
-  }
-};
-
-class ChromeMetadata_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/5, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  ChromeMetadata_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit ChromeMetadata_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit ChromeMetadata_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_name() const { return at<1>().valid(); }
-  ::protozero::ConstChars name() const { return at<1>().as_string(); }
-  bool has_string_value() const { return at<2>().valid(); }
-  ::protozero::ConstChars string_value() const { return at<2>().as_string(); }
-  bool has_bool_value() const { return at<3>().valid(); }
-  bool bool_value() const { return at<3>().as_bool(); }
-  bool has_int_value() const { return at<4>().valid(); }
-  int64_t int_value() const { return at<4>().as_int64(); }
-  bool has_json_value() const { return at<5>().valid(); }
-  ::protozero::ConstChars json_value() const { return at<5>().as_string(); }
-};
-
-class ChromeMetadata : public ::protozero::Message {
- public:
-  using Decoder = ChromeMetadata_Decoder;
-  enum : int32_t {
-    kNameFieldNumber = 1,
-    kStringValueFieldNumber = 2,
-    kBoolValueFieldNumber = 3,
-    kIntValueFieldNumber = 4,
-    kJsonValueFieldNumber = 5,
-  };
-
-  using FieldMetadata_Name =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kString,
-      std::string,
-      ChromeMetadata>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Name kName() { return {}; }
-  void set_name(const char* data, size_t size) {
-    AppendBytes(FieldMetadata_Name::kFieldId, data, size);
-  }
-  void set_name(std::string value) {
-    static constexpr uint32_t field_id = FieldMetadata_Name::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kString>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_StringValue =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kString,
-      std::string,
-      ChromeMetadata>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_StringValue kStringValue() { return {}; }
-  void set_string_value(const char* data, size_t size) {
-    AppendBytes(FieldMetadata_StringValue::kFieldId, data, size);
-  }
-  void set_string_value(std::string value) {
-    static constexpr uint32_t field_id = FieldMetadata_StringValue::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kString>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_BoolValue =
-    ::protozero::proto_utils::FieldMetadata<
-      3,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kBool,
-      bool,
-      ChromeMetadata>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_BoolValue kBoolValue() { return {}; }
-  void set_bool_value(bool value) {
-    static constexpr uint32_t field_id = FieldMetadata_BoolValue::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kBool>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_IntValue =
-    ::protozero::proto_utils::FieldMetadata<
-      4,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt64,
-      int64_t,
-      ChromeMetadata>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_IntValue kIntValue() { return {}; }
-  void set_int_value(int64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_IntValue::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_JsonValue =
-    ::protozero::proto_utils::FieldMetadata<
-      5,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kString,
-      std::string,
-      ChromeMetadata>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_JsonValue kJsonValue() { return {}; }
-  void set_json_value(const char* data, size_t size) {
-    AppendBytes(FieldMetadata_JsonValue::kFieldId, data, size);
-  }
-  void set_json_value(std::string value) {
-    static constexpr uint32_t field_id = FieldMetadata_JsonValue::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kString>
-        ::Append(*this, field_id, value);
-  }
-};
-
-class ChromeTraceEvent_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/16, /*HAS_NONPACKED_REPEATED_FIELDS=*/true> {
- public:
-  ChromeTraceEvent_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit ChromeTraceEvent_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit ChromeTraceEvent_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_name() const { return at<1>().valid(); }
-  ::protozero::ConstChars name() const { return at<1>().as_string(); }
-  bool has_timestamp() const { return at<2>().valid(); }
-  int64_t timestamp() const { return at<2>().as_int64(); }
-  bool has_phase() const { return at<3>().valid(); }
-  int32_t phase() const { return at<3>().as_int32(); }
-  bool has_thread_id() const { return at<4>().valid(); }
-  int32_t thread_id() const { return at<4>().as_int32(); }
-  bool has_duration() const { return at<5>().valid(); }
-  int64_t duration() const { return at<5>().as_int64(); }
-  bool has_thread_duration() const { return at<6>().valid(); }
-  int64_t thread_duration() const { return at<6>().as_int64(); }
-  bool has_scope() const { return at<7>().valid(); }
-  ::protozero::ConstChars scope() const { return at<7>().as_string(); }
-  bool has_id() const { return at<8>().valid(); }
-  uint64_t id() const { return at<8>().as_uint64(); }
-  bool has_flags() const { return at<9>().valid(); }
-  uint32_t flags() const { return at<9>().as_uint32(); }
-  bool has_category_group_name() const { return at<10>().valid(); }
-  ::protozero::ConstChars category_group_name() const { return at<10>().as_string(); }
-  bool has_process_id() const { return at<11>().valid(); }
-  int32_t process_id() const { return at<11>().as_int32(); }
-  bool has_thread_timestamp() const { return at<12>().valid(); }
-  int64_t thread_timestamp() const { return at<12>().as_int64(); }
-  bool has_bind_id() const { return at<13>().valid(); }
-  uint64_t bind_id() const { return at<13>().as_uint64(); }
-  bool has_args() const { return at<14>().valid(); }
-  ::protozero::RepeatedFieldIterator<::protozero::ConstBytes> args() const { return GetRepeated<::protozero::ConstBytes>(14); }
-  bool has_name_index() const { return at<15>().valid(); }
-  uint32_t name_index() const { return at<15>().as_uint32(); }
-  bool has_category_group_name_index() const { return at<16>().valid(); }
-  uint32_t category_group_name_index() const { return at<16>().as_uint32(); }
-};
-
-class ChromeTraceEvent : public ::protozero::Message {
- public:
-  using Decoder = ChromeTraceEvent_Decoder;
-  enum : int32_t {
-    kNameFieldNumber = 1,
-    kTimestampFieldNumber = 2,
-    kPhaseFieldNumber = 3,
-    kThreadIdFieldNumber = 4,
-    kDurationFieldNumber = 5,
-    kThreadDurationFieldNumber = 6,
-    kScopeFieldNumber = 7,
-    kIdFieldNumber = 8,
-    kFlagsFieldNumber = 9,
-    kCategoryGroupNameFieldNumber = 10,
-    kProcessIdFieldNumber = 11,
-    kThreadTimestampFieldNumber = 12,
-    kBindIdFieldNumber = 13,
-    kArgsFieldNumber = 14,
-    kNameIndexFieldNumber = 15,
-    kCategoryGroupNameIndexFieldNumber = 16,
-  };
-  using Arg = ::perfetto::protos::pbzero::ChromeTraceEvent_Arg;
-
-  using FieldMetadata_Name =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kString,
-      std::string,
-      ChromeTraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Name kName() { return {}; }
-  void set_name(const char* data, size_t size) {
-    AppendBytes(FieldMetadata_Name::kFieldId, data, size);
-  }
-  void set_name(std::string value) {
-    static constexpr uint32_t field_id = FieldMetadata_Name::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kString>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Timestamp =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt64,
-      int64_t,
-      ChromeTraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Timestamp kTimestamp() { return {}; }
-  void set_timestamp(int64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Timestamp::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Phase =
-    ::protozero::proto_utils::FieldMetadata<
-      3,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt32,
-      int32_t,
-      ChromeTraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Phase kPhase() { return {}; }
-  void set_phase(int32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Phase::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_ThreadId =
-    ::protozero::proto_utils::FieldMetadata<
-      4,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt32,
-      int32_t,
-      ChromeTraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_ThreadId kThreadId() { return {}; }
-  void set_thread_id(int32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_ThreadId::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Duration =
-    ::protozero::proto_utils::FieldMetadata<
-      5,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt64,
-      int64_t,
-      ChromeTraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Duration kDuration() { return {}; }
-  void set_duration(int64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Duration::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_ThreadDuration =
-    ::protozero::proto_utils::FieldMetadata<
-      6,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt64,
-      int64_t,
-      ChromeTraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_ThreadDuration kThreadDuration() { return {}; }
-  void set_thread_duration(int64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_ThreadDuration::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Scope =
-    ::protozero::proto_utils::FieldMetadata<
-      7,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kString,
-      std::string,
-      ChromeTraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Scope kScope() { return {}; }
-  void set_scope(const char* data, size_t size) {
-    AppendBytes(FieldMetadata_Scope::kFieldId, data, size);
-  }
-  void set_scope(std::string value) {
-    static constexpr uint32_t field_id = FieldMetadata_Scope::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kString>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Id =
-    ::protozero::proto_utils::FieldMetadata<
-      8,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      ChromeTraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Id kId() { return {}; }
-  void set_id(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Id::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Flags =
-    ::protozero::proto_utils::FieldMetadata<
-      9,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      ChromeTraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Flags kFlags() { return {}; }
-  void set_flags(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Flags::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_CategoryGroupName =
-    ::protozero::proto_utils::FieldMetadata<
-      10,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kString,
-      std::string,
-      ChromeTraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_CategoryGroupName kCategoryGroupName() { return {}; }
-  void set_category_group_name(const char* data, size_t size) {
-    AppendBytes(FieldMetadata_CategoryGroupName::kFieldId, data, size);
-  }
-  void set_category_group_name(std::string value) {
-    static constexpr uint32_t field_id = FieldMetadata_CategoryGroupName::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kString>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_ProcessId =
-    ::protozero::proto_utils::FieldMetadata<
-      11,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt32,
-      int32_t,
-      ChromeTraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_ProcessId kProcessId() { return {}; }
-  void set_process_id(int32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_ProcessId::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_ThreadTimestamp =
-    ::protozero::proto_utils::FieldMetadata<
-      12,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt64,
-      int64_t,
-      ChromeTraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_ThreadTimestamp kThreadTimestamp() { return {}; }
-  void set_thread_timestamp(int64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_ThreadTimestamp::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_BindId =
-    ::protozero::proto_utils::FieldMetadata<
-      13,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      ChromeTraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_BindId kBindId() { return {}; }
-  void set_bind_id(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_BindId::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Args =
-    ::protozero::proto_utils::FieldMetadata<
-      14,
-      ::protozero::proto_utils::RepetitionType::kRepeatedNotPacked,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      ChromeTraceEvent_Arg,
-      ChromeTraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Args kArgs() { return {}; }
-  template <typename T = ChromeTraceEvent_Arg> T* add_args() {
-    return BeginNestedMessage<T>(14);
-  }
-
-
-  using FieldMetadata_NameIndex =
-    ::protozero::proto_utils::FieldMetadata<
-      15,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      ChromeTraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_NameIndex kNameIndex() { return {}; }
-  void set_name_index(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_NameIndex::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_CategoryGroupNameIndex =
-    ::protozero::proto_utils::FieldMetadata<
-      16,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      ChromeTraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_CategoryGroupNameIndex kCategoryGroupNameIndex() { return {}; }
-  void set_category_group_name_index(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_CategoryGroupNameIndex::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-};
-
-class ChromeTraceEvent_Arg_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/10, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  ChromeTraceEvent_Arg_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit ChromeTraceEvent_Arg_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit ChromeTraceEvent_Arg_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_name() const { return at<1>().valid(); }
-  ::protozero::ConstChars name() const { return at<1>().as_string(); }
-  bool has_bool_value() const { return at<2>().valid(); }
-  bool bool_value() const { return at<2>().as_bool(); }
-  bool has_uint_value() const { return at<3>().valid(); }
-  uint64_t uint_value() const { return at<3>().as_uint64(); }
-  bool has_int_value() const { return at<4>().valid(); }
-  int64_t int_value() const { return at<4>().as_int64(); }
-  bool has_double_value() const { return at<5>().valid(); }
-  double double_value() const { return at<5>().as_double(); }
-  bool has_string_value() const { return at<6>().valid(); }
-  ::protozero::ConstChars string_value() const { return at<6>().as_string(); }
-  bool has_pointer_value() const { return at<7>().valid(); }
-  uint64_t pointer_value() const { return at<7>().as_uint64(); }
-  bool has_json_value() const { return at<8>().valid(); }
-  ::protozero::ConstChars json_value() const { return at<8>().as_string(); }
-  bool has_traced_value() const { return at<10>().valid(); }
-  ::protozero::ConstBytes traced_value() const { return at<10>().as_bytes(); }
-  bool has_name_index() const { return at<9>().valid(); }
-  uint32_t name_index() const { return at<9>().as_uint32(); }
-};
-
-class ChromeTraceEvent_Arg : public ::protozero::Message {
- public:
-  using Decoder = ChromeTraceEvent_Arg_Decoder;
-  enum : int32_t {
-    kNameFieldNumber = 1,
-    kBoolValueFieldNumber = 2,
-    kUintValueFieldNumber = 3,
-    kIntValueFieldNumber = 4,
-    kDoubleValueFieldNumber = 5,
-    kStringValueFieldNumber = 6,
-    kPointerValueFieldNumber = 7,
-    kJsonValueFieldNumber = 8,
-    kTracedValueFieldNumber = 10,
-    kNameIndexFieldNumber = 9,
-  };
-
-  using FieldMetadata_Name =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kString,
-      std::string,
-      ChromeTraceEvent_Arg>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Name kName() { return {}; }
-  void set_name(const char* data, size_t size) {
-    AppendBytes(FieldMetadata_Name::kFieldId, data, size);
-  }
-  void set_name(std::string value) {
-    static constexpr uint32_t field_id = FieldMetadata_Name::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kString>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_BoolValue =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kBool,
-      bool,
-      ChromeTraceEvent_Arg>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_BoolValue kBoolValue() { return {}; }
-  void set_bool_value(bool value) {
-    static constexpr uint32_t field_id = FieldMetadata_BoolValue::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kBool>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_UintValue =
-    ::protozero::proto_utils::FieldMetadata<
-      3,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      ChromeTraceEvent_Arg>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_UintValue kUintValue() { return {}; }
-  void set_uint_value(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_UintValue::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_IntValue =
-    ::protozero::proto_utils::FieldMetadata<
-      4,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt64,
-      int64_t,
-      ChromeTraceEvent_Arg>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_IntValue kIntValue() { return {}; }
-  void set_int_value(int64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_IntValue::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_DoubleValue =
-    ::protozero::proto_utils::FieldMetadata<
-      5,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kDouble,
-      double,
-      ChromeTraceEvent_Arg>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_DoubleValue kDoubleValue() { return {}; }
-  void set_double_value(double value) {
-    static constexpr uint32_t field_id = FieldMetadata_DoubleValue::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kDouble>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_StringValue =
-    ::protozero::proto_utils::FieldMetadata<
-      6,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kString,
-      std::string,
-      ChromeTraceEvent_Arg>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_StringValue kStringValue() { return {}; }
-  void set_string_value(const char* data, size_t size) {
-    AppendBytes(FieldMetadata_StringValue::kFieldId, data, size);
-  }
-  void set_string_value(std::string value) {
-    static constexpr uint32_t field_id = FieldMetadata_StringValue::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kString>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_PointerValue =
-    ::protozero::proto_utils::FieldMetadata<
-      7,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      ChromeTraceEvent_Arg>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_PointerValue kPointerValue() { return {}; }
-  void set_pointer_value(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_PointerValue::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_JsonValue =
-    ::protozero::proto_utils::FieldMetadata<
-      8,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kString,
-      std::string,
-      ChromeTraceEvent_Arg>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_JsonValue kJsonValue() { return {}; }
-  void set_json_value(const char* data, size_t size) {
-    AppendBytes(FieldMetadata_JsonValue::kFieldId, data, size);
-  }
-  void set_json_value(std::string value) {
-    static constexpr uint32_t field_id = FieldMetadata_JsonValue::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kString>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_TracedValue =
-    ::protozero::proto_utils::FieldMetadata<
-      10,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      ChromeTracedValue,
-      ChromeTraceEvent_Arg>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_TracedValue kTracedValue() { return {}; }
-  template <typename T = ChromeTracedValue> T* set_traced_value() {
-    return BeginNestedMessage<T>(10);
-  }
-
-
-  using FieldMetadata_NameIndex =
-    ::protozero::proto_utils::FieldMetadata<
-      9,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      ChromeTraceEvent_Arg>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_NameIndex kNameIndex() { return {}; }
-  void set_name_index(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_NameIndex::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-};
-
-class ChromeStringTableEntry_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/2, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  ChromeStringTableEntry_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit ChromeStringTableEntry_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit ChromeStringTableEntry_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_value() const { return at<1>().valid(); }
-  ::protozero::ConstChars value() const { return at<1>().as_string(); }
-  bool has_index() const { return at<2>().valid(); }
-  int32_t index() const { return at<2>().as_int32(); }
-};
-
-class ChromeStringTableEntry : public ::protozero::Message {
- public:
-  using Decoder = ChromeStringTableEntry_Decoder;
-  enum : int32_t {
-    kValueFieldNumber = 1,
-    kIndexFieldNumber = 2,
-  };
-
-  using FieldMetadata_Value =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kString,
-      std::string,
-      ChromeStringTableEntry>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Value kValue() { return {}; }
-  void set_value(const char* data, size_t size) {
-    AppendBytes(FieldMetadata_Value::kFieldId, data, size);
-  }
-  void set_value(std::string value) {
-    static constexpr uint32_t field_id = FieldMetadata_Value::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kString>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Index =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt32,
-      int32_t,
-      ChromeStringTableEntry>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Index kIndex() { return {}; }
-  void set_index(int32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Index::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt32>
-        ::Append(*this, field_id, value);
-  }
-};
-
-class ChromeTracedValue_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/8, /*HAS_NONPACKED_REPEATED_FIELDS=*/true> {
- public:
-  ChromeTracedValue_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit ChromeTracedValue_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit ChromeTracedValue_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_nested_type() const { return at<1>().valid(); }
-  int32_t nested_type() const { return at<1>().as_int32(); }
-  bool has_dict_keys() const { return at<2>().valid(); }
-  ::protozero::RepeatedFieldIterator<::protozero::ConstChars> dict_keys() const { return GetRepeated<::protozero::ConstChars>(2); }
-  bool has_dict_values() const { return at<3>().valid(); }
-  ::protozero::RepeatedFieldIterator<::protozero::ConstBytes> dict_values() const { return GetRepeated<::protozero::ConstBytes>(3); }
-  bool has_array_values() const { return at<4>().valid(); }
-  ::protozero::RepeatedFieldIterator<::protozero::ConstBytes> array_values() const { return GetRepeated<::protozero::ConstBytes>(4); }
-  bool has_int_value() const { return at<5>().valid(); }
-  int32_t int_value() const { return at<5>().as_int32(); }
-  bool has_double_value() const { return at<6>().valid(); }
-  double double_value() const { return at<6>().as_double(); }
-  bool has_bool_value() const { return at<7>().valid(); }
-  bool bool_value() const { return at<7>().as_bool(); }
-  bool has_string_value() const { return at<8>().valid(); }
-  ::protozero::ConstChars string_value() const { return at<8>().as_string(); }
-};
-
-class ChromeTracedValue : public ::protozero::Message {
- public:
-  using Decoder = ChromeTracedValue_Decoder;
-  enum : int32_t {
-    kNestedTypeFieldNumber = 1,
-    kDictKeysFieldNumber = 2,
-    kDictValuesFieldNumber = 3,
-    kArrayValuesFieldNumber = 4,
-    kIntValueFieldNumber = 5,
-    kDoubleValueFieldNumber = 6,
-    kBoolValueFieldNumber = 7,
-    kStringValueFieldNumber = 8,
-  };
-  using NestedType = ::perfetto::protos::pbzero::ChromeTracedValue_NestedType;
-  static const NestedType DICT = ChromeTracedValue_NestedType_DICT;
-  static const NestedType ARRAY = ChromeTracedValue_NestedType_ARRAY;
-
-  using FieldMetadata_NestedType =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kEnum,
-      ::perfetto::protos::pbzero::ChromeTracedValue_NestedType,
-      ChromeTracedValue>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_NestedType kNestedType() { return {}; }
-  void set_nested_type(::perfetto::protos::pbzero::ChromeTracedValue_NestedType value) {
-    static constexpr uint32_t field_id = FieldMetadata_NestedType::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kEnum>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_DictKeys =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kRepeatedNotPacked,
-      ::protozero::proto_utils::ProtoSchemaType::kString,
-      std::string,
-      ChromeTracedValue>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_DictKeys kDictKeys() { return {}; }
-  void add_dict_keys(const char* data, size_t size) {
-    AppendBytes(FieldMetadata_DictKeys::kFieldId, data, size);
-  }
-  void add_dict_keys(std::string value) {
-    static constexpr uint32_t field_id = FieldMetadata_DictKeys::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kString>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_DictValues =
-    ::protozero::proto_utils::FieldMetadata<
-      3,
-      ::protozero::proto_utils::RepetitionType::kRepeatedNotPacked,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      ChromeTracedValue,
-      ChromeTracedValue>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_DictValues kDictValues() { return {}; }
-  template <typename T = ChromeTracedValue> T* add_dict_values() {
-    return BeginNestedMessage<T>(3);
-  }
-
-
-  using FieldMetadata_ArrayValues =
-    ::protozero::proto_utils::FieldMetadata<
-      4,
-      ::protozero::proto_utils::RepetitionType::kRepeatedNotPacked,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      ChromeTracedValue,
-      ChromeTracedValue>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_ArrayValues kArrayValues() { return {}; }
-  template <typename T = ChromeTracedValue> T* add_array_values() {
-    return BeginNestedMessage<T>(4);
-  }
-
-
-  using FieldMetadata_IntValue =
-    ::protozero::proto_utils::FieldMetadata<
-      5,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt32,
-      int32_t,
-      ChromeTracedValue>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_IntValue kIntValue() { return {}; }
-  void set_int_value(int32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_IntValue::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_DoubleValue =
-    ::protozero::proto_utils::FieldMetadata<
-      6,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kDouble,
-      double,
-      ChromeTracedValue>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_DoubleValue kDoubleValue() { return {}; }
-  void set_double_value(double value) {
-    static constexpr uint32_t field_id = FieldMetadata_DoubleValue::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kDouble>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_BoolValue =
-    ::protozero::proto_utils::FieldMetadata<
-      7,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kBool,
-      bool,
-      ChromeTracedValue>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_BoolValue kBoolValue() { return {}; }
-  void set_bool_value(bool value) {
-    static constexpr uint32_t field_id = FieldMetadata_BoolValue::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kBool>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_StringValue =
-    ::protozero::proto_utils::FieldMetadata<
-      8,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kString,
-      std::string,
-      ChromeTracedValue>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_StringValue kStringValue() { return {}; }
-  void set_string_value(const char* data, size_t size) {
-    AppendBytes(FieldMetadata_StringValue::kFieldId, data, size);
-  }
-  void set_string_value(std::string value) {
-    static constexpr uint32_t field_id = FieldMetadata_StringValue::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kString>
-        ::Append(*this, field_id, value);
-  }
-};
-
-} // Namespace.
-} // Namespace.
-} // Namespace.
-#endif  // Include guard.
-// gen_amalgamated begin header: gen/protos/perfetto/trace/filesystem/inode_file_map.pbzero.h
-// Autogenerated by the ProtoZero compiler plugin. DO NOT EDIT.
-
-#ifndef PERFETTO_PROTOS_PROTOS_PERFETTO_TRACE_FILESYSTEM_INODE_FILE_MAP_PROTO_H_
-#define PERFETTO_PROTOS_PROTOS_PERFETTO_TRACE_FILESYSTEM_INODE_FILE_MAP_PROTO_H_
-
-#include <stddef.h>
-#include <stdint.h>
-
-// gen_amalgamated expanded: #include "perfetto/protozero/field_writer.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/message.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/packed_repeated_fields.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/proto_decoder.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/proto_utils.h"
-
-namespace perfetto {
-namespace protos {
-namespace pbzero {
-
-class InodeFileMap_Entry;
-enum InodeFileMap_Entry_Type : int32_t;
-
-enum InodeFileMap_Entry_Type : int32_t {
-  InodeFileMap_Entry_Type_UNKNOWN = 0,
-  InodeFileMap_Entry_Type_FILE = 1,
-  InodeFileMap_Entry_Type_DIRECTORY = 2,
-};
-
-const InodeFileMap_Entry_Type InodeFileMap_Entry_Type_MIN = InodeFileMap_Entry_Type_UNKNOWN;
-const InodeFileMap_Entry_Type InodeFileMap_Entry_Type_MAX = InodeFileMap_Entry_Type_DIRECTORY;
-
-class InodeFileMap_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/3, /*HAS_NONPACKED_REPEATED_FIELDS=*/true> {
- public:
-  InodeFileMap_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit InodeFileMap_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit InodeFileMap_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_block_device_id() const { return at<1>().valid(); }
-  uint64_t block_device_id() const { return at<1>().as_uint64(); }
-  bool has_mount_points() const { return at<2>().valid(); }
-  ::protozero::RepeatedFieldIterator<::protozero::ConstChars> mount_points() const { return GetRepeated<::protozero::ConstChars>(2); }
-  bool has_entries() const { return at<3>().valid(); }
-  ::protozero::RepeatedFieldIterator<::protozero::ConstBytes> entries() const { return GetRepeated<::protozero::ConstBytes>(3); }
-};
-
-class InodeFileMap : public ::protozero::Message {
- public:
-  using Decoder = InodeFileMap_Decoder;
-  enum : int32_t {
-    kBlockDeviceIdFieldNumber = 1,
-    kMountPointsFieldNumber = 2,
-    kEntriesFieldNumber = 3,
-  };
-  using Entry = ::perfetto::protos::pbzero::InodeFileMap_Entry;
-
-  using FieldMetadata_BlockDeviceId =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      InodeFileMap>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_BlockDeviceId kBlockDeviceId() { return {}; }
-  void set_block_device_id(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_BlockDeviceId::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_MountPoints =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kRepeatedNotPacked,
-      ::protozero::proto_utils::ProtoSchemaType::kString,
-      std::string,
-      InodeFileMap>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_MountPoints kMountPoints() { return {}; }
-  void add_mount_points(const char* data, size_t size) {
-    AppendBytes(FieldMetadata_MountPoints::kFieldId, data, size);
-  }
-  void add_mount_points(std::string value) {
-    static constexpr uint32_t field_id = FieldMetadata_MountPoints::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kString>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Entries =
-    ::protozero::proto_utils::FieldMetadata<
-      3,
-      ::protozero::proto_utils::RepetitionType::kRepeatedNotPacked,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      InodeFileMap_Entry,
-      InodeFileMap>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Entries kEntries() { return {}; }
-  template <typename T = InodeFileMap_Entry> T* add_entries() {
-    return BeginNestedMessage<T>(3);
-  }
-
-};
-
-class InodeFileMap_Entry_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/3, /*HAS_NONPACKED_REPEATED_FIELDS=*/true> {
- public:
-  InodeFileMap_Entry_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit InodeFileMap_Entry_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit InodeFileMap_Entry_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_inode_number() const { return at<1>().valid(); }
-  uint64_t inode_number() const { return at<1>().as_uint64(); }
-  bool has_paths() const { return at<2>().valid(); }
-  ::protozero::RepeatedFieldIterator<::protozero::ConstChars> paths() const { return GetRepeated<::protozero::ConstChars>(2); }
-  bool has_type() const { return at<3>().valid(); }
-  int32_t type() const { return at<3>().as_int32(); }
-};
-
-class InodeFileMap_Entry : public ::protozero::Message {
- public:
-  using Decoder = InodeFileMap_Entry_Decoder;
-  enum : int32_t {
-    kInodeNumberFieldNumber = 1,
-    kPathsFieldNumber = 2,
-    kTypeFieldNumber = 3,
-  };
-  using Type = ::perfetto::protos::pbzero::InodeFileMap_Entry_Type;
-  static const Type UNKNOWN = InodeFileMap_Entry_Type_UNKNOWN;
-  static const Type FILE = InodeFileMap_Entry_Type_FILE;
-  static const Type DIRECTORY = InodeFileMap_Entry_Type_DIRECTORY;
-
-  using FieldMetadata_InodeNumber =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      InodeFileMap_Entry>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_InodeNumber kInodeNumber() { return {}; }
-  void set_inode_number(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_InodeNumber::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Paths =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kRepeatedNotPacked,
-      ::protozero::proto_utils::ProtoSchemaType::kString,
-      std::string,
-      InodeFileMap_Entry>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Paths kPaths() { return {}; }
-  void add_paths(const char* data, size_t size) {
-    AppendBytes(FieldMetadata_Paths::kFieldId, data, size);
-  }
-  void add_paths(std::string value) {
-    static constexpr uint32_t field_id = FieldMetadata_Paths::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kString>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Type =
-    ::protozero::proto_utils::FieldMetadata<
-      3,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kEnum,
-      ::perfetto::protos::pbzero::InodeFileMap_Entry_Type,
-      InodeFileMap_Entry>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Type kType() { return {}; }
-  void set_type(::perfetto::protos::pbzero::InodeFileMap_Entry_Type value) {
-    static constexpr uint32_t field_id = FieldMetadata_Type::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kEnum>
-        ::Append(*this, field_id, value);
-  }
-};
-
-} // Namespace.
-} // Namespace.
-} // Namespace.
-#endif  // Include guard.
-// gen_amalgamated begin header: gen/protos/perfetto/trace/ftrace/ftrace_event.pbzero.h
-// Autogenerated by the ProtoZero compiler plugin. DO NOT EDIT.
-
-#ifndef PERFETTO_PROTOS_PROTOS_PERFETTO_TRACE_FTRACE_FTRACE_EVENT_PROTO_H_
-#define PERFETTO_PROTOS_PROTOS_PERFETTO_TRACE_FTRACE_FTRACE_EVENT_PROTO_H_
-
-#include <stddef.h>
-#include <stdint.h>
-
-// gen_amalgamated expanded: #include "perfetto/protozero/field_writer.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/message.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/packed_repeated_fields.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/proto_decoder.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/proto_utils.h"
-
-namespace perfetto {
-namespace protos {
-namespace pbzero {
-
-class AllocPagesIommuEndFtraceEvent;
-class AllocPagesIommuFailFtraceEvent;
-class AllocPagesIommuStartFtraceEvent;
-class AllocPagesSysEndFtraceEvent;
-class AllocPagesSysFailFtraceEvent;
-class AllocPagesSysStartFtraceEvent;
-class BinderLockFtraceEvent;
-class BinderLockedFtraceEvent;
-class BinderSetPriorityFtraceEvent;
-class BinderTransactionAllocBufFtraceEvent;
-class BinderTransactionFtraceEvent;
-class BinderTransactionReceivedFtraceEvent;
-class BinderUnlockFtraceEvent;
-class BlockBioBackmergeFtraceEvent;
-class BlockBioBounceFtraceEvent;
-class BlockBioCompleteFtraceEvent;
-class BlockBioFrontmergeFtraceEvent;
-class BlockBioQueueFtraceEvent;
-class BlockBioRemapFtraceEvent;
-class BlockDirtyBufferFtraceEvent;
-class BlockGetrqFtraceEvent;
-class BlockPlugFtraceEvent;
-class BlockRqAbortFtraceEvent;
-class BlockRqCompleteFtraceEvent;
-class BlockRqInsertFtraceEvent;
-class BlockRqIssueFtraceEvent;
-class BlockRqRemapFtraceEvent;
-class BlockRqRequeueFtraceEvent;
-class BlockSleeprqFtraceEvent;
-class BlockSplitFtraceEvent;
-class BlockTouchBufferFtraceEvent;
-class BlockUnplugFtraceEvent;
-class CdevUpdateFtraceEvent;
-class CgroupAttachTaskFtraceEvent;
-class CgroupDestroyRootFtraceEvent;
-class CgroupMkdirFtraceEvent;
-class CgroupReleaseFtraceEvent;
-class CgroupRemountFtraceEvent;
-class CgroupRenameFtraceEvent;
-class CgroupRmdirFtraceEvent;
-class CgroupSetupRootFtraceEvent;
-class CgroupTransferTasksFtraceEvent;
-class ClkDisableFtraceEvent;
-class ClkEnableFtraceEvent;
-class ClkSetRateFtraceEvent;
-class ClockDisableFtraceEvent;
-class ClockEnableFtraceEvent;
-class ClockSetRateFtraceEvent;
-class CpuFrequencyFtraceEvent;
-class CpuFrequencyLimitsFtraceEvent;
-class CpuIdleFtraceEvent;
-class CpuhpEnterFtraceEvent;
-class CpuhpExitFtraceEvent;
-class CpuhpLatencyFtraceEvent;
-class CpuhpMultiEnterFtraceEvent;
-class CpuhpPauseFtraceEvent;
-class DmaAllocContiguousRetryFtraceEvent;
-class DmaHeapStatFtraceEvent;
-class DpuTracingMarkWriteFtraceEvent;
-class Ext4AllocDaBlocksFtraceEvent;
-class Ext4AllocateBlocksFtraceEvent;
-class Ext4AllocateInodeFtraceEvent;
-class Ext4BeginOrderedTruncateFtraceEvent;
-class Ext4CollapseRangeFtraceEvent;
-class Ext4DaReleaseSpaceFtraceEvent;
-class Ext4DaReserveSpaceFtraceEvent;
-class Ext4DaUpdateReserveSpaceFtraceEvent;
-class Ext4DaWriteBeginFtraceEvent;
-class Ext4DaWriteEndFtraceEvent;
-class Ext4DaWritePagesExtentFtraceEvent;
-class Ext4DaWritePagesFtraceEvent;
-class Ext4DirectIOEnterFtraceEvent;
-class Ext4DirectIOExitFtraceEvent;
-class Ext4DiscardBlocksFtraceEvent;
-class Ext4DiscardPreallocationsFtraceEvent;
-class Ext4DropInodeFtraceEvent;
-class Ext4EsCacheExtentFtraceEvent;
-class Ext4EsFindDelayedExtentRangeEnterFtraceEvent;
-class Ext4EsFindDelayedExtentRangeExitFtraceEvent;
-class Ext4EsInsertExtentFtraceEvent;
-class Ext4EsLookupExtentEnterFtraceEvent;
-class Ext4EsLookupExtentExitFtraceEvent;
-class Ext4EsRemoveExtentFtraceEvent;
-class Ext4EsShrinkCountFtraceEvent;
-class Ext4EsShrinkFtraceEvent;
-class Ext4EsShrinkScanEnterFtraceEvent;
-class Ext4EsShrinkScanExitFtraceEvent;
-class Ext4EvictInodeFtraceEvent;
-class Ext4ExtConvertToInitializedEnterFtraceEvent;
-class Ext4ExtConvertToInitializedFastpathFtraceEvent;
-class Ext4ExtHandleUnwrittenExtentsFtraceEvent;
-class Ext4ExtInCacheFtraceEvent;
-class Ext4ExtLoadExtentFtraceEvent;
-class Ext4ExtMapBlocksEnterFtraceEvent;
-class Ext4ExtMapBlocksExitFtraceEvent;
-class Ext4ExtPutInCacheFtraceEvent;
-class Ext4ExtRemoveSpaceDoneFtraceEvent;
-class Ext4ExtRemoveSpaceFtraceEvent;
-class Ext4ExtRmIdxFtraceEvent;
-class Ext4ExtRmLeafFtraceEvent;
-class Ext4ExtShowExtentFtraceEvent;
-class Ext4FallocateEnterFtraceEvent;
-class Ext4FallocateExitFtraceEvent;
-class Ext4FindDelallocRangeFtraceEvent;
-class Ext4ForgetFtraceEvent;
-class Ext4FreeBlocksFtraceEvent;
-class Ext4FreeInodeFtraceEvent;
-class Ext4GetImpliedClusterAllocExitFtraceEvent;
-class Ext4GetReservedClusterAllocFtraceEvent;
-class Ext4IndMapBlocksEnterFtraceEvent;
-class Ext4IndMapBlocksExitFtraceEvent;
-class Ext4InsertRangeFtraceEvent;
-class Ext4InvalidatepageFtraceEvent;
-class Ext4JournalStartFtraceEvent;
-class Ext4JournalStartReservedFtraceEvent;
-class Ext4JournalledInvalidatepageFtraceEvent;
-class Ext4JournalledWriteEndFtraceEvent;
-class Ext4LoadInodeBitmapFtraceEvent;
-class Ext4LoadInodeFtraceEvent;
-class Ext4MarkInodeDirtyFtraceEvent;
-class Ext4MbBitmapLoadFtraceEvent;
-class Ext4MbBuddyBitmapLoadFtraceEvent;
-class Ext4MbDiscardPreallocationsFtraceEvent;
-class Ext4MbNewGroupPaFtraceEvent;
-class Ext4MbNewInodePaFtraceEvent;
-class Ext4MbReleaseGroupPaFtraceEvent;
-class Ext4MbReleaseInodePaFtraceEvent;
-class Ext4MballocAllocFtraceEvent;
-class Ext4MballocDiscardFtraceEvent;
-class Ext4MballocFreeFtraceEvent;
-class Ext4MballocPreallocFtraceEvent;
-class Ext4OtherInodeUpdateTimeFtraceEvent;
-class Ext4PunchHoleFtraceEvent;
-class Ext4ReadBlockBitmapLoadFtraceEvent;
-class Ext4ReadpageFtraceEvent;
-class Ext4ReleasepageFtraceEvent;
-class Ext4RemoveBlocksFtraceEvent;
-class Ext4RequestBlocksFtraceEvent;
-class Ext4RequestInodeFtraceEvent;
-class Ext4SyncFileEnterFtraceEvent;
-class Ext4SyncFileExitFtraceEvent;
-class Ext4SyncFsFtraceEvent;
-class Ext4TrimAllFreeFtraceEvent;
-class Ext4TrimExtentFtraceEvent;
-class Ext4TruncateEnterFtraceEvent;
-class Ext4TruncateExitFtraceEvent;
-class Ext4UnlinkEnterFtraceEvent;
-class Ext4UnlinkExitFtraceEvent;
-class Ext4WriteBeginFtraceEvent;
-class Ext4WriteEndFtraceEvent;
-class Ext4WritepageFtraceEvent;
-class Ext4WritepagesFtraceEvent;
-class Ext4WritepagesResultFtraceEvent;
-class Ext4ZeroRangeFtraceEvent;
-class F2fsDoSubmitBioFtraceEvent;
-class F2fsEvictInodeFtraceEvent;
-class F2fsFallocateFtraceEvent;
-class F2fsGetDataBlockFtraceEvent;
-class F2fsGetVictimFtraceEvent;
-class F2fsIgetExitFtraceEvent;
-class F2fsIgetFtraceEvent;
-class F2fsNewInodeFtraceEvent;
-class F2fsReadpageFtraceEvent;
-class F2fsReserveNewBlockFtraceEvent;
-class F2fsSetPageDirtyFtraceEvent;
-class F2fsSubmitWritePageFtraceEvent;
-class F2fsSyncFileEnterFtraceEvent;
-class F2fsSyncFileExitFtraceEvent;
-class F2fsSyncFsFtraceEvent;
-class F2fsTruncateBlocksEnterFtraceEvent;
-class F2fsTruncateBlocksExitFtraceEvent;
-class F2fsTruncateDataBlocksRangeFtraceEvent;
-class F2fsTruncateFtraceEvent;
-class F2fsTruncateInodeBlocksEnterFtraceEvent;
-class F2fsTruncateInodeBlocksExitFtraceEvent;
-class F2fsTruncateNodeFtraceEvent;
-class F2fsTruncateNodesEnterFtraceEvent;
-class F2fsTruncateNodesExitFtraceEvent;
-class F2fsTruncatePartialNodesFtraceEvent;
-class F2fsUnlinkEnterFtraceEvent;
-class F2fsUnlinkExitFtraceEvent;
-class F2fsVmPageMkwriteFtraceEvent;
-class F2fsWriteBeginFtraceEvent;
-class F2fsWriteCheckpointFtraceEvent;
-class F2fsWriteEndFtraceEvent;
-class FastrpcDmaStatFtraceEvent;
-class FenceDestroyFtraceEvent;
-class FenceEnableSignalFtraceEvent;
-class FenceInitFtraceEvent;
-class FenceSignaledFtraceEvent;
-class G2dTracingMarkWriteFtraceEvent;
-class GenericFtraceEvent;
-class GpuFrequencyFtraceEvent;
-class GpuMemTotalFtraceEvent;
-class I2cReadFtraceEvent;
-class I2cReplyFtraceEvent;
-class I2cResultFtraceEvent;
-class I2cWriteFtraceEvent;
-class IommuMapRangeFtraceEvent;
-class IommuSecPtblMapRangeEndFtraceEvent;
-class IommuSecPtblMapRangeStartFtraceEvent;
-class IonAllocBufferEndFtraceEvent;
-class IonAllocBufferFailFtraceEvent;
-class IonAllocBufferFallbackFtraceEvent;
-class IonAllocBufferStartFtraceEvent;
-class IonBufferCreateFtraceEvent;
-class IonBufferDestroyFtraceEvent;
-class IonCpAllocRetryFtraceEvent;
-class IonCpSecureBufferEndFtraceEvent;
-class IonCpSecureBufferStartFtraceEvent;
-class IonHeapGrowFtraceEvent;
-class IonHeapShrinkFtraceEvent;
-class IonPrefetchingFtraceEvent;
-class IonSecureCmaAddToPoolEndFtraceEvent;
-class IonSecureCmaAddToPoolStartFtraceEvent;
-class IonSecureCmaAllocateEndFtraceEvent;
-class IonSecureCmaAllocateStartFtraceEvent;
-class IonSecureCmaShrinkPoolEndFtraceEvent;
-class IonSecureCmaShrinkPoolStartFtraceEvent;
-class IonStatFtraceEvent;
-class IpiEntryFtraceEvent;
-class IpiExitFtraceEvent;
-class IpiRaiseFtraceEvent;
-class IrqHandlerEntryFtraceEvent;
-class IrqHandlerExitFtraceEvent;
-class KfreeFtraceEvent;
-class KmallocFtraceEvent;
-class KmallocNodeFtraceEvent;
-class KmemCacheAllocFtraceEvent;
-class KmemCacheAllocNodeFtraceEvent;
-class KmemCacheFreeFtraceEvent;
-class LowmemoryKillFtraceEvent;
-class MaliTracingMarkWriteFtraceEvent;
-class MarkVictimFtraceEvent;
-class MdpCmdKickoffFtraceEvent;
-class MdpCmdPingpongDoneFtraceEvent;
-class MdpCmdReadptrDoneFtraceEvent;
-class MdpCmdReleaseBwFtraceEvent;
-class MdpCmdWaitPingpongFtraceEvent;
-class MdpCommitFtraceEvent;
-class MdpCompareBwFtraceEvent;
-class MdpMisrCrcFtraceEvent;
-class MdpMixerUpdateFtraceEvent;
-class MdpPerfPrefillCalcFtraceEvent;
-class MdpPerfSetOtFtraceEvent;
-class MdpPerfSetPanicLutsFtraceEvent;
-class MdpPerfSetQosLutsFtraceEvent;
-class MdpPerfSetWmLevelsFtraceEvent;
-class MdpPerfUpdateBusFtraceEvent;
-class MdpSsppChangeFtraceEvent;
-class MdpSsppSetFtraceEvent;
-class MdpTraceCounterFtraceEvent;
-class MdpVideoUnderrunDoneFtraceEvent;
-class MigratePagesEndFtraceEvent;
-class MigratePagesStartFtraceEvent;
-class MigrateRetryFtraceEvent;
-class MmCompactionBeginFtraceEvent;
-class MmCompactionDeferCompactionFtraceEvent;
-class MmCompactionDeferResetFtraceEvent;
-class MmCompactionDeferredFtraceEvent;
-class MmCompactionEndFtraceEvent;
-class MmCompactionFinishedFtraceEvent;
-class MmCompactionIsolateFreepagesFtraceEvent;
-class MmCompactionIsolateMigratepagesFtraceEvent;
-class MmCompactionKcompactdSleepFtraceEvent;
-class MmCompactionKcompactdWakeFtraceEvent;
-class MmCompactionMigratepagesFtraceEvent;
-class MmCompactionSuitableFtraceEvent;
-class MmCompactionTryToCompactPagesFtraceEvent;
-class MmCompactionWakeupKcompactdFtraceEvent;
-class MmEventRecordFtraceEvent;
-class MmFilemapAddToPageCacheFtraceEvent;
-class MmFilemapDeleteFromPageCacheFtraceEvent;
-class MmPageAllocExtfragFtraceEvent;
-class MmPageAllocFtraceEvent;
-class MmPageAllocZoneLockedFtraceEvent;
-class MmPageFreeBatchedFtraceEvent;
-class MmPageFreeFtraceEvent;
-class MmPagePcpuDrainFtraceEvent;
-class MmVmscanDirectReclaimBeginFtraceEvent;
-class MmVmscanDirectReclaimEndFtraceEvent;
-class MmVmscanKswapdSleepFtraceEvent;
-class MmVmscanKswapdWakeFtraceEvent;
-class OomScoreAdjUpdateFtraceEvent;
-class PrintFtraceEvent;
-class RegulatorDisableCompleteFtraceEvent;
-class RegulatorDisableFtraceEvent;
-class RegulatorEnableCompleteFtraceEvent;
-class RegulatorEnableDelayFtraceEvent;
-class RegulatorEnableFtraceEvent;
-class RegulatorSetVoltageCompleteFtraceEvent;
-class RegulatorSetVoltageFtraceEvent;
-class RotatorBwAoAsContextFtraceEvent;
-class RssStatFtraceEvent;
-class SchedBlockedReasonFtraceEvent;
-class SchedCpuHotplugFtraceEvent;
-class SchedPiSetprioFtraceEvent;
-class SchedProcessExecFtraceEvent;
-class SchedProcessExitFtraceEvent;
-class SchedProcessForkFtraceEvent;
-class SchedProcessFreeFtraceEvent;
-class SchedProcessHangFtraceEvent;
-class SchedProcessWaitFtraceEvent;
-class SchedSwitchFtraceEvent;
-class SchedWakeupFtraceEvent;
-class SchedWakeupNewFtraceEvent;
-class SchedWakingFtraceEvent;
-class ScmCallEndFtraceEvent;
-class ScmCallStartFtraceEvent;
-class SdeSdeEvtlogFtraceEvent;
-class SdeSdePerfCalcCrtcFtraceEvent;
-class SdeSdePerfCrtcUpdateFtraceEvent;
-class SdeSdePerfSetQosLutsFtraceEvent;
-class SdeSdePerfUpdateBusFtraceEvent;
-class SdeTracingMarkWriteFtraceEvent;
-class SignalDeliverFtraceEvent;
-class SignalGenerateFtraceEvent;
-class SmbusReadFtraceEvent;
-class SmbusReplyFtraceEvent;
-class SmbusResultFtraceEvent;
-class SmbusWriteFtraceEvent;
-class SoftirqEntryFtraceEvent;
-class SoftirqExitFtraceEvent;
-class SoftirqRaiseFtraceEvent;
-class SuspendResumeFtraceEvent;
-class SyncPtFtraceEvent;
-class SyncTimelineFtraceEvent;
-class SyncWaitFtraceEvent;
-class SysEnterFtraceEvent;
-class SysExitFtraceEvent;
-class TaskNewtaskFtraceEvent;
-class TaskRenameFtraceEvent;
-class ThermalTemperatureFtraceEvent;
-class TracingMarkWriteFtraceEvent;
-class WorkqueueActivateWorkFtraceEvent;
-class WorkqueueExecuteEndFtraceEvent;
-class WorkqueueExecuteStartFtraceEvent;
-class WorkqueueQueueWorkFtraceEvent;
-class ZeroFtraceEvent;
-
-class FtraceEvent_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/358, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  FtraceEvent_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit FtraceEvent_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit FtraceEvent_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_timestamp() const { return at<1>().valid(); }
-  uint64_t timestamp() const { return at<1>().as_uint64(); }
-  bool has_pid() const { return at<2>().valid(); }
-  uint32_t pid() const { return at<2>().as_uint32(); }
-  bool has_print() const { return at<3>().valid(); }
-  ::protozero::ConstBytes print() const { return at<3>().as_bytes(); }
-  bool has_sched_switch() const { return at<4>().valid(); }
-  ::protozero::ConstBytes sched_switch() const { return at<4>().as_bytes(); }
-  bool has_cpu_frequency() const { return at<11>().valid(); }
-  ::protozero::ConstBytes cpu_frequency() const { return at<11>().as_bytes(); }
-  bool has_cpu_frequency_limits() const { return at<12>().valid(); }
-  ::protozero::ConstBytes cpu_frequency_limits() const { return at<12>().as_bytes(); }
-  bool has_cpu_idle() const { return at<13>().valid(); }
-  ::protozero::ConstBytes cpu_idle() const { return at<13>().as_bytes(); }
-  bool has_clock_enable() const { return at<14>().valid(); }
-  ::protozero::ConstBytes clock_enable() const { return at<14>().as_bytes(); }
-  bool has_clock_disable() const { return at<15>().valid(); }
-  ::protozero::ConstBytes clock_disable() const { return at<15>().as_bytes(); }
-  bool has_clock_set_rate() const { return at<16>().valid(); }
-  ::protozero::ConstBytes clock_set_rate() const { return at<16>().as_bytes(); }
-  bool has_sched_wakeup() const { return at<17>().valid(); }
-  ::protozero::ConstBytes sched_wakeup() const { return at<17>().as_bytes(); }
-  bool has_sched_blocked_reason() const { return at<18>().valid(); }
-  ::protozero::ConstBytes sched_blocked_reason() const { return at<18>().as_bytes(); }
-  bool has_sched_cpu_hotplug() const { return at<19>().valid(); }
-  ::protozero::ConstBytes sched_cpu_hotplug() const { return at<19>().as_bytes(); }
-  bool has_sched_waking() const { return at<20>().valid(); }
-  ::protozero::ConstBytes sched_waking() const { return at<20>().as_bytes(); }
-  bool has_ipi_entry() const { return at<21>().valid(); }
-  ::protozero::ConstBytes ipi_entry() const { return at<21>().as_bytes(); }
-  bool has_ipi_exit() const { return at<22>().valid(); }
-  ::protozero::ConstBytes ipi_exit() const { return at<22>().as_bytes(); }
-  bool has_ipi_raise() const { return at<23>().valid(); }
-  ::protozero::ConstBytes ipi_raise() const { return at<23>().as_bytes(); }
-  bool has_softirq_entry() const { return at<24>().valid(); }
-  ::protozero::ConstBytes softirq_entry() const { return at<24>().as_bytes(); }
-  bool has_softirq_exit() const { return at<25>().valid(); }
-  ::protozero::ConstBytes softirq_exit() const { return at<25>().as_bytes(); }
-  bool has_softirq_raise() const { return at<26>().valid(); }
-  ::protozero::ConstBytes softirq_raise() const { return at<26>().as_bytes(); }
-  bool has_i2c_read() const { return at<27>().valid(); }
-  ::protozero::ConstBytes i2c_read() const { return at<27>().as_bytes(); }
-  bool has_i2c_write() const { return at<28>().valid(); }
-  ::protozero::ConstBytes i2c_write() const { return at<28>().as_bytes(); }
-  bool has_i2c_result() const { return at<29>().valid(); }
-  ::protozero::ConstBytes i2c_result() const { return at<29>().as_bytes(); }
-  bool has_i2c_reply() const { return at<30>().valid(); }
-  ::protozero::ConstBytes i2c_reply() const { return at<30>().as_bytes(); }
-  bool has_smbus_read() const { return at<31>().valid(); }
-  ::protozero::ConstBytes smbus_read() const { return at<31>().as_bytes(); }
-  bool has_smbus_write() const { return at<32>().valid(); }
-  ::protozero::ConstBytes smbus_write() const { return at<32>().as_bytes(); }
-  bool has_smbus_result() const { return at<33>().valid(); }
-  ::protozero::ConstBytes smbus_result() const { return at<33>().as_bytes(); }
-  bool has_smbus_reply() const { return at<34>().valid(); }
-  ::protozero::ConstBytes smbus_reply() const { return at<34>().as_bytes(); }
-  bool has_lowmemory_kill() const { return at<35>().valid(); }
-  ::protozero::ConstBytes lowmemory_kill() const { return at<35>().as_bytes(); }
-  bool has_irq_handler_entry() const { return at<36>().valid(); }
-  ::protozero::ConstBytes irq_handler_entry() const { return at<36>().as_bytes(); }
-  bool has_irq_handler_exit() const { return at<37>().valid(); }
-  ::protozero::ConstBytes irq_handler_exit() const { return at<37>().as_bytes(); }
-  bool has_sync_pt() const { return at<38>().valid(); }
-  ::protozero::ConstBytes sync_pt() const { return at<38>().as_bytes(); }
-  bool has_sync_timeline() const { return at<39>().valid(); }
-  ::protozero::ConstBytes sync_timeline() const { return at<39>().as_bytes(); }
-  bool has_sync_wait() const { return at<40>().valid(); }
-  ::protozero::ConstBytes sync_wait() const { return at<40>().as_bytes(); }
-  bool has_ext4_da_write_begin() const { return at<41>().valid(); }
-  ::protozero::ConstBytes ext4_da_write_begin() const { return at<41>().as_bytes(); }
-  bool has_ext4_da_write_end() const { return at<42>().valid(); }
-  ::protozero::ConstBytes ext4_da_write_end() const { return at<42>().as_bytes(); }
-  bool has_ext4_sync_file_enter() const { return at<43>().valid(); }
-  ::protozero::ConstBytes ext4_sync_file_enter() const { return at<43>().as_bytes(); }
-  bool has_ext4_sync_file_exit() const { return at<44>().valid(); }
-  ::protozero::ConstBytes ext4_sync_file_exit() const { return at<44>().as_bytes(); }
-  bool has_block_rq_issue() const { return at<45>().valid(); }
-  ::protozero::ConstBytes block_rq_issue() const { return at<45>().as_bytes(); }
-  bool has_mm_vmscan_direct_reclaim_begin() const { return at<46>().valid(); }
-  ::protozero::ConstBytes mm_vmscan_direct_reclaim_begin() const { return at<46>().as_bytes(); }
-  bool has_mm_vmscan_direct_reclaim_end() const { return at<47>().valid(); }
-  ::protozero::ConstBytes mm_vmscan_direct_reclaim_end() const { return at<47>().as_bytes(); }
-  bool has_mm_vmscan_kswapd_wake() const { return at<48>().valid(); }
-  ::protozero::ConstBytes mm_vmscan_kswapd_wake() const { return at<48>().as_bytes(); }
-  bool has_mm_vmscan_kswapd_sleep() const { return at<49>().valid(); }
-  ::protozero::ConstBytes mm_vmscan_kswapd_sleep() const { return at<49>().as_bytes(); }
-  bool has_binder_transaction() const { return at<50>().valid(); }
-  ::protozero::ConstBytes binder_transaction() const { return at<50>().as_bytes(); }
-  bool has_binder_transaction_received() const { return at<51>().valid(); }
-  ::protozero::ConstBytes binder_transaction_received() const { return at<51>().as_bytes(); }
-  bool has_binder_set_priority() const { return at<52>().valid(); }
-  ::protozero::ConstBytes binder_set_priority() const { return at<52>().as_bytes(); }
-  bool has_binder_lock() const { return at<53>().valid(); }
-  ::protozero::ConstBytes binder_lock() const { return at<53>().as_bytes(); }
-  bool has_binder_locked() const { return at<54>().valid(); }
-  ::protozero::ConstBytes binder_locked() const { return at<54>().as_bytes(); }
-  bool has_binder_unlock() const { return at<55>().valid(); }
-  ::protozero::ConstBytes binder_unlock() const { return at<55>().as_bytes(); }
-  bool has_workqueue_activate_work() const { return at<56>().valid(); }
-  ::protozero::ConstBytes workqueue_activate_work() const { return at<56>().as_bytes(); }
-  bool has_workqueue_execute_end() const { return at<57>().valid(); }
-  ::protozero::ConstBytes workqueue_execute_end() const { return at<57>().as_bytes(); }
-  bool has_workqueue_execute_start() const { return at<58>().valid(); }
-  ::protozero::ConstBytes workqueue_execute_start() const { return at<58>().as_bytes(); }
-  bool has_workqueue_queue_work() const { return at<59>().valid(); }
-  ::protozero::ConstBytes workqueue_queue_work() const { return at<59>().as_bytes(); }
-  bool has_regulator_disable() const { return at<60>().valid(); }
-  ::protozero::ConstBytes regulator_disable() const { return at<60>().as_bytes(); }
-  bool has_regulator_disable_complete() const { return at<61>().valid(); }
-  ::protozero::ConstBytes regulator_disable_complete() const { return at<61>().as_bytes(); }
-  bool has_regulator_enable() const { return at<62>().valid(); }
-  ::protozero::ConstBytes regulator_enable() const { return at<62>().as_bytes(); }
-  bool has_regulator_enable_complete() const { return at<63>().valid(); }
-  ::protozero::ConstBytes regulator_enable_complete() const { return at<63>().as_bytes(); }
-  bool has_regulator_enable_delay() const { return at<64>().valid(); }
-  ::protozero::ConstBytes regulator_enable_delay() const { return at<64>().as_bytes(); }
-  bool has_regulator_set_voltage() const { return at<65>().valid(); }
-  ::protozero::ConstBytes regulator_set_voltage() const { return at<65>().as_bytes(); }
-  bool has_regulator_set_voltage_complete() const { return at<66>().valid(); }
-  ::protozero::ConstBytes regulator_set_voltage_complete() const { return at<66>().as_bytes(); }
-  bool has_cgroup_attach_task() const { return at<67>().valid(); }
-  ::protozero::ConstBytes cgroup_attach_task() const { return at<67>().as_bytes(); }
-  bool has_cgroup_mkdir() const { return at<68>().valid(); }
-  ::protozero::ConstBytes cgroup_mkdir() const { return at<68>().as_bytes(); }
-  bool has_cgroup_remount() const { return at<69>().valid(); }
-  ::protozero::ConstBytes cgroup_remount() const { return at<69>().as_bytes(); }
-  bool has_cgroup_rmdir() const { return at<70>().valid(); }
-  ::protozero::ConstBytes cgroup_rmdir() const { return at<70>().as_bytes(); }
-  bool has_cgroup_transfer_tasks() const { return at<71>().valid(); }
-  ::protozero::ConstBytes cgroup_transfer_tasks() const { return at<71>().as_bytes(); }
-  bool has_cgroup_destroy_root() const { return at<72>().valid(); }
-  ::protozero::ConstBytes cgroup_destroy_root() const { return at<72>().as_bytes(); }
-  bool has_cgroup_release() const { return at<73>().valid(); }
-  ::protozero::ConstBytes cgroup_release() const { return at<73>().as_bytes(); }
-  bool has_cgroup_rename() const { return at<74>().valid(); }
-  ::protozero::ConstBytes cgroup_rename() const { return at<74>().as_bytes(); }
-  bool has_cgroup_setup_root() const { return at<75>().valid(); }
-  ::protozero::ConstBytes cgroup_setup_root() const { return at<75>().as_bytes(); }
-  bool has_mdp_cmd_kickoff() const { return at<76>().valid(); }
-  ::protozero::ConstBytes mdp_cmd_kickoff() const { return at<76>().as_bytes(); }
-  bool has_mdp_commit() const { return at<77>().valid(); }
-  ::protozero::ConstBytes mdp_commit() const { return at<77>().as_bytes(); }
-  bool has_mdp_perf_set_ot() const { return at<78>().valid(); }
-  ::protozero::ConstBytes mdp_perf_set_ot() const { return at<78>().as_bytes(); }
-  bool has_mdp_sspp_change() const { return at<79>().valid(); }
-  ::protozero::ConstBytes mdp_sspp_change() const { return at<79>().as_bytes(); }
-  bool has_tracing_mark_write() const { return at<80>().valid(); }
-  ::protozero::ConstBytes tracing_mark_write() const { return at<80>().as_bytes(); }
-  bool has_mdp_cmd_pingpong_done() const { return at<81>().valid(); }
-  ::protozero::ConstBytes mdp_cmd_pingpong_done() const { return at<81>().as_bytes(); }
-  bool has_mdp_compare_bw() const { return at<82>().valid(); }
-  ::protozero::ConstBytes mdp_compare_bw() const { return at<82>().as_bytes(); }
-  bool has_mdp_perf_set_panic_luts() const { return at<83>().valid(); }
-  ::protozero::ConstBytes mdp_perf_set_panic_luts() const { return at<83>().as_bytes(); }
-  bool has_mdp_sspp_set() const { return at<84>().valid(); }
-  ::protozero::ConstBytes mdp_sspp_set() const { return at<84>().as_bytes(); }
-  bool has_mdp_cmd_readptr_done() const { return at<85>().valid(); }
-  ::protozero::ConstBytes mdp_cmd_readptr_done() const { return at<85>().as_bytes(); }
-  bool has_mdp_misr_crc() const { return at<86>().valid(); }
-  ::protozero::ConstBytes mdp_misr_crc() const { return at<86>().as_bytes(); }
-  bool has_mdp_perf_set_qos_luts() const { return at<87>().valid(); }
-  ::protozero::ConstBytes mdp_perf_set_qos_luts() const { return at<87>().as_bytes(); }
-  bool has_mdp_trace_counter() const { return at<88>().valid(); }
-  ::protozero::ConstBytes mdp_trace_counter() const { return at<88>().as_bytes(); }
-  bool has_mdp_cmd_release_bw() const { return at<89>().valid(); }
-  ::protozero::ConstBytes mdp_cmd_release_bw() const { return at<89>().as_bytes(); }
-  bool has_mdp_mixer_update() const { return at<90>().valid(); }
-  ::protozero::ConstBytes mdp_mixer_update() const { return at<90>().as_bytes(); }
-  bool has_mdp_perf_set_wm_levels() const { return at<91>().valid(); }
-  ::protozero::ConstBytes mdp_perf_set_wm_levels() const { return at<91>().as_bytes(); }
-  bool has_mdp_video_underrun_done() const { return at<92>().valid(); }
-  ::protozero::ConstBytes mdp_video_underrun_done() const { return at<92>().as_bytes(); }
-  bool has_mdp_cmd_wait_pingpong() const { return at<93>().valid(); }
-  ::protozero::ConstBytes mdp_cmd_wait_pingpong() const { return at<93>().as_bytes(); }
-  bool has_mdp_perf_prefill_calc() const { return at<94>().valid(); }
-  ::protozero::ConstBytes mdp_perf_prefill_calc() const { return at<94>().as_bytes(); }
-  bool has_mdp_perf_update_bus() const { return at<95>().valid(); }
-  ::protozero::ConstBytes mdp_perf_update_bus() const { return at<95>().as_bytes(); }
-  bool has_rotator_bw_ao_as_context() const { return at<96>().valid(); }
-  ::protozero::ConstBytes rotator_bw_ao_as_context() const { return at<96>().as_bytes(); }
-  bool has_mm_filemap_add_to_page_cache() const { return at<97>().valid(); }
-  ::protozero::ConstBytes mm_filemap_add_to_page_cache() const { return at<97>().as_bytes(); }
-  bool has_mm_filemap_delete_from_page_cache() const { return at<98>().valid(); }
-  ::protozero::ConstBytes mm_filemap_delete_from_page_cache() const { return at<98>().as_bytes(); }
-  bool has_mm_compaction_begin() const { return at<99>().valid(); }
-  ::protozero::ConstBytes mm_compaction_begin() const { return at<99>().as_bytes(); }
-  bool has_mm_compaction_defer_compaction() const { return at<100>().valid(); }
-  ::protozero::ConstBytes mm_compaction_defer_compaction() const { return at<100>().as_bytes(); }
-  bool has_mm_compaction_deferred() const { return at<101>().valid(); }
-  ::protozero::ConstBytes mm_compaction_deferred() const { return at<101>().as_bytes(); }
-  bool has_mm_compaction_defer_reset() const { return at<102>().valid(); }
-  ::protozero::ConstBytes mm_compaction_defer_reset() const { return at<102>().as_bytes(); }
-  bool has_mm_compaction_end() const { return at<103>().valid(); }
-  ::protozero::ConstBytes mm_compaction_end() const { return at<103>().as_bytes(); }
-  bool has_mm_compaction_finished() const { return at<104>().valid(); }
-  ::protozero::ConstBytes mm_compaction_finished() const { return at<104>().as_bytes(); }
-  bool has_mm_compaction_isolate_freepages() const { return at<105>().valid(); }
-  ::protozero::ConstBytes mm_compaction_isolate_freepages() const { return at<105>().as_bytes(); }
-  bool has_mm_compaction_isolate_migratepages() const { return at<106>().valid(); }
-  ::protozero::ConstBytes mm_compaction_isolate_migratepages() const { return at<106>().as_bytes(); }
-  bool has_mm_compaction_kcompactd_sleep() const { return at<107>().valid(); }
-  ::protozero::ConstBytes mm_compaction_kcompactd_sleep() const { return at<107>().as_bytes(); }
-  bool has_mm_compaction_kcompactd_wake() const { return at<108>().valid(); }
-  ::protozero::ConstBytes mm_compaction_kcompactd_wake() const { return at<108>().as_bytes(); }
-  bool has_mm_compaction_migratepages() const { return at<109>().valid(); }
-  ::protozero::ConstBytes mm_compaction_migratepages() const { return at<109>().as_bytes(); }
-  bool has_mm_compaction_suitable() const { return at<110>().valid(); }
-  ::protozero::ConstBytes mm_compaction_suitable() const { return at<110>().as_bytes(); }
-  bool has_mm_compaction_try_to_compact_pages() const { return at<111>().valid(); }
-  ::protozero::ConstBytes mm_compaction_try_to_compact_pages() const { return at<111>().as_bytes(); }
-  bool has_mm_compaction_wakeup_kcompactd() const { return at<112>().valid(); }
-  ::protozero::ConstBytes mm_compaction_wakeup_kcompactd() const { return at<112>().as_bytes(); }
-  bool has_suspend_resume() const { return at<113>().valid(); }
-  ::protozero::ConstBytes suspend_resume() const { return at<113>().as_bytes(); }
-  bool has_sched_wakeup_new() const { return at<114>().valid(); }
-  ::protozero::ConstBytes sched_wakeup_new() const { return at<114>().as_bytes(); }
-  bool has_block_bio_backmerge() const { return at<115>().valid(); }
-  ::protozero::ConstBytes block_bio_backmerge() const { return at<115>().as_bytes(); }
-  bool has_block_bio_bounce() const { return at<116>().valid(); }
-  ::protozero::ConstBytes block_bio_bounce() const { return at<116>().as_bytes(); }
-  bool has_block_bio_complete() const { return at<117>().valid(); }
-  ::protozero::ConstBytes block_bio_complete() const { return at<117>().as_bytes(); }
-  bool has_block_bio_frontmerge() const { return at<118>().valid(); }
-  ::protozero::ConstBytes block_bio_frontmerge() const { return at<118>().as_bytes(); }
-  bool has_block_bio_queue() const { return at<119>().valid(); }
-  ::protozero::ConstBytes block_bio_queue() const { return at<119>().as_bytes(); }
-  bool has_block_bio_remap() const { return at<120>().valid(); }
-  ::protozero::ConstBytes block_bio_remap() const { return at<120>().as_bytes(); }
-  bool has_block_dirty_buffer() const { return at<121>().valid(); }
-  ::protozero::ConstBytes block_dirty_buffer() const { return at<121>().as_bytes(); }
-  bool has_block_getrq() const { return at<122>().valid(); }
-  ::protozero::ConstBytes block_getrq() const { return at<122>().as_bytes(); }
-  bool has_block_plug() const { return at<123>().valid(); }
-  ::protozero::ConstBytes block_plug() const { return at<123>().as_bytes(); }
-  bool has_block_rq_abort() const { return at<124>().valid(); }
-  ::protozero::ConstBytes block_rq_abort() const { return at<124>().as_bytes(); }
-  bool has_block_rq_complete() const { return at<125>().valid(); }
-  ::protozero::ConstBytes block_rq_complete() const { return at<125>().as_bytes(); }
-  bool has_block_rq_insert() const { return at<126>().valid(); }
-  ::protozero::ConstBytes block_rq_insert() const { return at<126>().as_bytes(); }
-  bool has_block_rq_remap() const { return at<128>().valid(); }
-  ::protozero::ConstBytes block_rq_remap() const { return at<128>().as_bytes(); }
-  bool has_block_rq_requeue() const { return at<129>().valid(); }
-  ::protozero::ConstBytes block_rq_requeue() const { return at<129>().as_bytes(); }
-  bool has_block_sleeprq() const { return at<130>().valid(); }
-  ::protozero::ConstBytes block_sleeprq() const { return at<130>().as_bytes(); }
-  bool has_block_split() const { return at<131>().valid(); }
-  ::protozero::ConstBytes block_split() const { return at<131>().as_bytes(); }
-  bool has_block_touch_buffer() const { return at<132>().valid(); }
-  ::protozero::ConstBytes block_touch_buffer() const { return at<132>().as_bytes(); }
-  bool has_block_unplug() const { return at<133>().valid(); }
-  ::protozero::ConstBytes block_unplug() const { return at<133>().as_bytes(); }
-  bool has_ext4_alloc_da_blocks() const { return at<134>().valid(); }
-  ::protozero::ConstBytes ext4_alloc_da_blocks() const { return at<134>().as_bytes(); }
-  bool has_ext4_allocate_blocks() const { return at<135>().valid(); }
-  ::protozero::ConstBytes ext4_allocate_blocks() const { return at<135>().as_bytes(); }
-  bool has_ext4_allocate_inode() const { return at<136>().valid(); }
-  ::protozero::ConstBytes ext4_allocate_inode() const { return at<136>().as_bytes(); }
-  bool has_ext4_begin_ordered_truncate() const { return at<137>().valid(); }
-  ::protozero::ConstBytes ext4_begin_ordered_truncate() const { return at<137>().as_bytes(); }
-  bool has_ext4_collapse_range() const { return at<138>().valid(); }
-  ::protozero::ConstBytes ext4_collapse_range() const { return at<138>().as_bytes(); }
-  bool has_ext4_da_release_space() const { return at<139>().valid(); }
-  ::protozero::ConstBytes ext4_da_release_space() const { return at<139>().as_bytes(); }
-  bool has_ext4_da_reserve_space() const { return at<140>().valid(); }
-  ::protozero::ConstBytes ext4_da_reserve_space() const { return at<140>().as_bytes(); }
-  bool has_ext4_da_update_reserve_space() const { return at<141>().valid(); }
-  ::protozero::ConstBytes ext4_da_update_reserve_space() const { return at<141>().as_bytes(); }
-  bool has_ext4_da_write_pages() const { return at<142>().valid(); }
-  ::protozero::ConstBytes ext4_da_write_pages() const { return at<142>().as_bytes(); }
-  bool has_ext4_da_write_pages_extent() const { return at<143>().valid(); }
-  ::protozero::ConstBytes ext4_da_write_pages_extent() const { return at<143>().as_bytes(); }
-  bool has_ext4_direct_io_enter() const { return at<144>().valid(); }
-  ::protozero::ConstBytes ext4_direct_io_enter() const { return at<144>().as_bytes(); }
-  bool has_ext4_direct_io_exit() const { return at<145>().valid(); }
-  ::protozero::ConstBytes ext4_direct_io_exit() const { return at<145>().as_bytes(); }
-  bool has_ext4_discard_blocks() const { return at<146>().valid(); }
-  ::protozero::ConstBytes ext4_discard_blocks() const { return at<146>().as_bytes(); }
-  bool has_ext4_discard_preallocations() const { return at<147>().valid(); }
-  ::protozero::ConstBytes ext4_discard_preallocations() const { return at<147>().as_bytes(); }
-  bool has_ext4_drop_inode() const { return at<148>().valid(); }
-  ::protozero::ConstBytes ext4_drop_inode() const { return at<148>().as_bytes(); }
-  bool has_ext4_es_cache_extent() const { return at<149>().valid(); }
-  ::protozero::ConstBytes ext4_es_cache_extent() const { return at<149>().as_bytes(); }
-  bool has_ext4_es_find_delayed_extent_range_enter() const { return at<150>().valid(); }
-  ::protozero::ConstBytes ext4_es_find_delayed_extent_range_enter() const { return at<150>().as_bytes(); }
-  bool has_ext4_es_find_delayed_extent_range_exit() const { return at<151>().valid(); }
-  ::protozero::ConstBytes ext4_es_find_delayed_extent_range_exit() const { return at<151>().as_bytes(); }
-  bool has_ext4_es_insert_extent() const { return at<152>().valid(); }
-  ::protozero::ConstBytes ext4_es_insert_extent() const { return at<152>().as_bytes(); }
-  bool has_ext4_es_lookup_extent_enter() const { return at<153>().valid(); }
-  ::protozero::ConstBytes ext4_es_lookup_extent_enter() const { return at<153>().as_bytes(); }
-  bool has_ext4_es_lookup_extent_exit() const { return at<154>().valid(); }
-  ::protozero::ConstBytes ext4_es_lookup_extent_exit() const { return at<154>().as_bytes(); }
-  bool has_ext4_es_remove_extent() const { return at<155>().valid(); }
-  ::protozero::ConstBytes ext4_es_remove_extent() const { return at<155>().as_bytes(); }
-  bool has_ext4_es_shrink() const { return at<156>().valid(); }
-  ::protozero::ConstBytes ext4_es_shrink() const { return at<156>().as_bytes(); }
-  bool has_ext4_es_shrink_count() const { return at<157>().valid(); }
-  ::protozero::ConstBytes ext4_es_shrink_count() const { return at<157>().as_bytes(); }
-  bool has_ext4_es_shrink_scan_enter() const { return at<158>().valid(); }
-  ::protozero::ConstBytes ext4_es_shrink_scan_enter() const { return at<158>().as_bytes(); }
-  bool has_ext4_es_shrink_scan_exit() const { return at<159>().valid(); }
-  ::protozero::ConstBytes ext4_es_shrink_scan_exit() const { return at<159>().as_bytes(); }
-  bool has_ext4_evict_inode() const { return at<160>().valid(); }
-  ::protozero::ConstBytes ext4_evict_inode() const { return at<160>().as_bytes(); }
-  bool has_ext4_ext_convert_to_initialized_enter() const { return at<161>().valid(); }
-  ::protozero::ConstBytes ext4_ext_convert_to_initialized_enter() const { return at<161>().as_bytes(); }
-  bool has_ext4_ext_convert_to_initialized_fastpath() const { return at<162>().valid(); }
-  ::protozero::ConstBytes ext4_ext_convert_to_initialized_fastpath() const { return at<162>().as_bytes(); }
-  bool has_ext4_ext_handle_unwritten_extents() const { return at<163>().valid(); }
-  ::protozero::ConstBytes ext4_ext_handle_unwritten_extents() const { return at<163>().as_bytes(); }
-  bool has_ext4_ext_in_cache() const { return at<164>().valid(); }
-  ::protozero::ConstBytes ext4_ext_in_cache() const { return at<164>().as_bytes(); }
-  bool has_ext4_ext_load_extent() const { return at<165>().valid(); }
-  ::protozero::ConstBytes ext4_ext_load_extent() const { return at<165>().as_bytes(); }
-  bool has_ext4_ext_map_blocks_enter() const { return at<166>().valid(); }
-  ::protozero::ConstBytes ext4_ext_map_blocks_enter() const { return at<166>().as_bytes(); }
-  bool has_ext4_ext_map_blocks_exit() const { return at<167>().valid(); }
-  ::protozero::ConstBytes ext4_ext_map_blocks_exit() const { return at<167>().as_bytes(); }
-  bool has_ext4_ext_put_in_cache() const { return at<168>().valid(); }
-  ::protozero::ConstBytes ext4_ext_put_in_cache() const { return at<168>().as_bytes(); }
-  bool has_ext4_ext_remove_space() const { return at<169>().valid(); }
-  ::protozero::ConstBytes ext4_ext_remove_space() const { return at<169>().as_bytes(); }
-  bool has_ext4_ext_remove_space_done() const { return at<170>().valid(); }
-  ::protozero::ConstBytes ext4_ext_remove_space_done() const { return at<170>().as_bytes(); }
-  bool has_ext4_ext_rm_idx() const { return at<171>().valid(); }
-  ::protozero::ConstBytes ext4_ext_rm_idx() const { return at<171>().as_bytes(); }
-  bool has_ext4_ext_rm_leaf() const { return at<172>().valid(); }
-  ::protozero::ConstBytes ext4_ext_rm_leaf() const { return at<172>().as_bytes(); }
-  bool has_ext4_ext_show_extent() const { return at<173>().valid(); }
-  ::protozero::ConstBytes ext4_ext_show_extent() const { return at<173>().as_bytes(); }
-  bool has_ext4_fallocate_enter() const { return at<174>().valid(); }
-  ::protozero::ConstBytes ext4_fallocate_enter() const { return at<174>().as_bytes(); }
-  bool has_ext4_fallocate_exit() const { return at<175>().valid(); }
-  ::protozero::ConstBytes ext4_fallocate_exit() const { return at<175>().as_bytes(); }
-  bool has_ext4_find_delalloc_range() const { return at<176>().valid(); }
-  ::protozero::ConstBytes ext4_find_delalloc_range() const { return at<176>().as_bytes(); }
-  bool has_ext4_forget() const { return at<177>().valid(); }
-  ::protozero::ConstBytes ext4_forget() const { return at<177>().as_bytes(); }
-  bool has_ext4_free_blocks() const { return at<178>().valid(); }
-  ::protozero::ConstBytes ext4_free_blocks() const { return at<178>().as_bytes(); }
-  bool has_ext4_free_inode() const { return at<179>().valid(); }
-  ::protozero::ConstBytes ext4_free_inode() const { return at<179>().as_bytes(); }
-  bool has_ext4_get_implied_cluster_alloc_exit() const { return at<180>().valid(); }
-  ::protozero::ConstBytes ext4_get_implied_cluster_alloc_exit() const { return at<180>().as_bytes(); }
-  bool has_ext4_get_reserved_cluster_alloc() const { return at<181>().valid(); }
-  ::protozero::ConstBytes ext4_get_reserved_cluster_alloc() const { return at<181>().as_bytes(); }
-  bool has_ext4_ind_map_blocks_enter() const { return at<182>().valid(); }
-  ::protozero::ConstBytes ext4_ind_map_blocks_enter() const { return at<182>().as_bytes(); }
-  bool has_ext4_ind_map_blocks_exit() const { return at<183>().valid(); }
-  ::protozero::ConstBytes ext4_ind_map_blocks_exit() const { return at<183>().as_bytes(); }
-  bool has_ext4_insert_range() const { return at<184>().valid(); }
-  ::protozero::ConstBytes ext4_insert_range() const { return at<184>().as_bytes(); }
-  bool has_ext4_invalidatepage() const { return at<185>().valid(); }
-  ::protozero::ConstBytes ext4_invalidatepage() const { return at<185>().as_bytes(); }
-  bool has_ext4_journal_start() const { return at<186>().valid(); }
-  ::protozero::ConstBytes ext4_journal_start() const { return at<186>().as_bytes(); }
-  bool has_ext4_journal_start_reserved() const { return at<187>().valid(); }
-  ::protozero::ConstBytes ext4_journal_start_reserved() const { return at<187>().as_bytes(); }
-  bool has_ext4_journalled_invalidatepage() const { return at<188>().valid(); }
-  ::protozero::ConstBytes ext4_journalled_invalidatepage() const { return at<188>().as_bytes(); }
-  bool has_ext4_journalled_write_end() const { return at<189>().valid(); }
-  ::protozero::ConstBytes ext4_journalled_write_end() const { return at<189>().as_bytes(); }
-  bool has_ext4_load_inode() const { return at<190>().valid(); }
-  ::protozero::ConstBytes ext4_load_inode() const { return at<190>().as_bytes(); }
-  bool has_ext4_load_inode_bitmap() const { return at<191>().valid(); }
-  ::protozero::ConstBytes ext4_load_inode_bitmap() const { return at<191>().as_bytes(); }
-  bool has_ext4_mark_inode_dirty() const { return at<192>().valid(); }
-  ::protozero::ConstBytes ext4_mark_inode_dirty() const { return at<192>().as_bytes(); }
-  bool has_ext4_mb_bitmap_load() const { return at<193>().valid(); }
-  ::protozero::ConstBytes ext4_mb_bitmap_load() const { return at<193>().as_bytes(); }
-  bool has_ext4_mb_buddy_bitmap_load() const { return at<194>().valid(); }
-  ::protozero::ConstBytes ext4_mb_buddy_bitmap_load() const { return at<194>().as_bytes(); }
-  bool has_ext4_mb_discard_preallocations() const { return at<195>().valid(); }
-  ::protozero::ConstBytes ext4_mb_discard_preallocations() const { return at<195>().as_bytes(); }
-  bool has_ext4_mb_new_group_pa() const { return at<196>().valid(); }
-  ::protozero::ConstBytes ext4_mb_new_group_pa() const { return at<196>().as_bytes(); }
-  bool has_ext4_mb_new_inode_pa() const { return at<197>().valid(); }
-  ::protozero::ConstBytes ext4_mb_new_inode_pa() const { return at<197>().as_bytes(); }
-  bool has_ext4_mb_release_group_pa() const { return at<198>().valid(); }
-  ::protozero::ConstBytes ext4_mb_release_group_pa() const { return at<198>().as_bytes(); }
-  bool has_ext4_mb_release_inode_pa() const { return at<199>().valid(); }
-  ::protozero::ConstBytes ext4_mb_release_inode_pa() const { return at<199>().as_bytes(); }
-  bool has_ext4_mballoc_alloc() const { return at<200>().valid(); }
-  ::protozero::ConstBytes ext4_mballoc_alloc() const { return at<200>().as_bytes(); }
-  bool has_ext4_mballoc_discard() const { return at<201>().valid(); }
-  ::protozero::ConstBytes ext4_mballoc_discard() const { return at<201>().as_bytes(); }
-  bool has_ext4_mballoc_free() const { return at<202>().valid(); }
-  ::protozero::ConstBytes ext4_mballoc_free() const { return at<202>().as_bytes(); }
-  bool has_ext4_mballoc_prealloc() const { return at<203>().valid(); }
-  ::protozero::ConstBytes ext4_mballoc_prealloc() const { return at<203>().as_bytes(); }
-  bool has_ext4_other_inode_update_time() const { return at<204>().valid(); }
-  ::protozero::ConstBytes ext4_other_inode_update_time() const { return at<204>().as_bytes(); }
-  bool has_ext4_punch_hole() const { return at<205>().valid(); }
-  ::protozero::ConstBytes ext4_punch_hole() const { return at<205>().as_bytes(); }
-  bool has_ext4_read_block_bitmap_load() const { return at<206>().valid(); }
-  ::protozero::ConstBytes ext4_read_block_bitmap_load() const { return at<206>().as_bytes(); }
-  bool has_ext4_readpage() const { return at<207>().valid(); }
-  ::protozero::ConstBytes ext4_readpage() const { return at<207>().as_bytes(); }
-  bool has_ext4_releasepage() const { return at<208>().valid(); }
-  ::protozero::ConstBytes ext4_releasepage() const { return at<208>().as_bytes(); }
-  bool has_ext4_remove_blocks() const { return at<209>().valid(); }
-  ::protozero::ConstBytes ext4_remove_blocks() const { return at<209>().as_bytes(); }
-  bool has_ext4_request_blocks() const { return at<210>().valid(); }
-  ::protozero::ConstBytes ext4_request_blocks() const { return at<210>().as_bytes(); }
-  bool has_ext4_request_inode() const { return at<211>().valid(); }
-  ::protozero::ConstBytes ext4_request_inode() const { return at<211>().as_bytes(); }
-  bool has_ext4_sync_fs() const { return at<212>().valid(); }
-  ::protozero::ConstBytes ext4_sync_fs() const { return at<212>().as_bytes(); }
-  bool has_ext4_trim_all_free() const { return at<213>().valid(); }
-  ::protozero::ConstBytes ext4_trim_all_free() const { return at<213>().as_bytes(); }
-  bool has_ext4_trim_extent() const { return at<214>().valid(); }
-  ::protozero::ConstBytes ext4_trim_extent() const { return at<214>().as_bytes(); }
-  bool has_ext4_truncate_enter() const { return at<215>().valid(); }
-  ::protozero::ConstBytes ext4_truncate_enter() const { return at<215>().as_bytes(); }
-  bool has_ext4_truncate_exit() const { return at<216>().valid(); }
-  ::protozero::ConstBytes ext4_truncate_exit() const { return at<216>().as_bytes(); }
-  bool has_ext4_unlink_enter() const { return at<217>().valid(); }
-  ::protozero::ConstBytes ext4_unlink_enter() const { return at<217>().as_bytes(); }
-  bool has_ext4_unlink_exit() const { return at<218>().valid(); }
-  ::protozero::ConstBytes ext4_unlink_exit() const { return at<218>().as_bytes(); }
-  bool has_ext4_write_begin() const { return at<219>().valid(); }
-  ::protozero::ConstBytes ext4_write_begin() const { return at<219>().as_bytes(); }
-  bool has_ext4_write_end() const { return at<230>().valid(); }
-  ::protozero::ConstBytes ext4_write_end() const { return at<230>().as_bytes(); }
-  bool has_ext4_writepage() const { return at<231>().valid(); }
-  ::protozero::ConstBytes ext4_writepage() const { return at<231>().as_bytes(); }
-  bool has_ext4_writepages() const { return at<232>().valid(); }
-  ::protozero::ConstBytes ext4_writepages() const { return at<232>().as_bytes(); }
-  bool has_ext4_writepages_result() const { return at<233>().valid(); }
-  ::protozero::ConstBytes ext4_writepages_result() const { return at<233>().as_bytes(); }
-  bool has_ext4_zero_range() const { return at<234>().valid(); }
-  ::protozero::ConstBytes ext4_zero_range() const { return at<234>().as_bytes(); }
-  bool has_task_newtask() const { return at<235>().valid(); }
-  ::protozero::ConstBytes task_newtask() const { return at<235>().as_bytes(); }
-  bool has_task_rename() const { return at<236>().valid(); }
-  ::protozero::ConstBytes task_rename() const { return at<236>().as_bytes(); }
-  bool has_sched_process_exec() const { return at<237>().valid(); }
-  ::protozero::ConstBytes sched_process_exec() const { return at<237>().as_bytes(); }
-  bool has_sched_process_exit() const { return at<238>().valid(); }
-  ::protozero::ConstBytes sched_process_exit() const { return at<238>().as_bytes(); }
-  bool has_sched_process_fork() const { return at<239>().valid(); }
-  ::protozero::ConstBytes sched_process_fork() const { return at<239>().as_bytes(); }
-  bool has_sched_process_free() const { return at<240>().valid(); }
-  ::protozero::ConstBytes sched_process_free() const { return at<240>().as_bytes(); }
-  bool has_sched_process_hang() const { return at<241>().valid(); }
-  ::protozero::ConstBytes sched_process_hang() const { return at<241>().as_bytes(); }
-  bool has_sched_process_wait() const { return at<242>().valid(); }
-  ::protozero::ConstBytes sched_process_wait() const { return at<242>().as_bytes(); }
-  bool has_f2fs_do_submit_bio() const { return at<243>().valid(); }
-  ::protozero::ConstBytes f2fs_do_submit_bio() const { return at<243>().as_bytes(); }
-  bool has_f2fs_evict_inode() const { return at<244>().valid(); }
-  ::protozero::ConstBytes f2fs_evict_inode() const { return at<244>().as_bytes(); }
-  bool has_f2fs_fallocate() const { return at<245>().valid(); }
-  ::protozero::ConstBytes f2fs_fallocate() const { return at<245>().as_bytes(); }
-  bool has_f2fs_get_data_block() const { return at<246>().valid(); }
-  ::protozero::ConstBytes f2fs_get_data_block() const { return at<246>().as_bytes(); }
-  bool has_f2fs_get_victim() const { return at<247>().valid(); }
-  ::protozero::ConstBytes f2fs_get_victim() const { return at<247>().as_bytes(); }
-  bool has_f2fs_iget() const { return at<248>().valid(); }
-  ::protozero::ConstBytes f2fs_iget() const { return at<248>().as_bytes(); }
-  bool has_f2fs_iget_exit() const { return at<249>().valid(); }
-  ::protozero::ConstBytes f2fs_iget_exit() const { return at<249>().as_bytes(); }
-  bool has_f2fs_new_inode() const { return at<250>().valid(); }
-  ::protozero::ConstBytes f2fs_new_inode() const { return at<250>().as_bytes(); }
-  bool has_f2fs_readpage() const { return at<251>().valid(); }
-  ::protozero::ConstBytes f2fs_readpage() const { return at<251>().as_bytes(); }
-  bool has_f2fs_reserve_new_block() const { return at<252>().valid(); }
-  ::protozero::ConstBytes f2fs_reserve_new_block() const { return at<252>().as_bytes(); }
-  bool has_f2fs_set_page_dirty() const { return at<253>().valid(); }
-  ::protozero::ConstBytes f2fs_set_page_dirty() const { return at<253>().as_bytes(); }
-  bool has_f2fs_submit_write_page() const { return at<254>().valid(); }
-  ::protozero::ConstBytes f2fs_submit_write_page() const { return at<254>().as_bytes(); }
-  bool has_f2fs_sync_file_enter() const { return at<255>().valid(); }
-  ::protozero::ConstBytes f2fs_sync_file_enter() const { return at<255>().as_bytes(); }
-  bool has_f2fs_sync_file_exit() const { return at<256>().valid(); }
-  ::protozero::ConstBytes f2fs_sync_file_exit() const { return at<256>().as_bytes(); }
-  bool has_f2fs_sync_fs() const { return at<257>().valid(); }
-  ::protozero::ConstBytes f2fs_sync_fs() const { return at<257>().as_bytes(); }
-  bool has_f2fs_truncate() const { return at<258>().valid(); }
-  ::protozero::ConstBytes f2fs_truncate() const { return at<258>().as_bytes(); }
-  bool has_f2fs_truncate_blocks_enter() const { return at<259>().valid(); }
-  ::protozero::ConstBytes f2fs_truncate_blocks_enter() const { return at<259>().as_bytes(); }
-  bool has_f2fs_truncate_blocks_exit() const { return at<260>().valid(); }
-  ::protozero::ConstBytes f2fs_truncate_blocks_exit() const { return at<260>().as_bytes(); }
-  bool has_f2fs_truncate_data_blocks_range() const { return at<261>().valid(); }
-  ::protozero::ConstBytes f2fs_truncate_data_blocks_range() const { return at<261>().as_bytes(); }
-  bool has_f2fs_truncate_inode_blocks_enter() const { return at<262>().valid(); }
-  ::protozero::ConstBytes f2fs_truncate_inode_blocks_enter() const { return at<262>().as_bytes(); }
-  bool has_f2fs_truncate_inode_blocks_exit() const { return at<263>().valid(); }
-  ::protozero::ConstBytes f2fs_truncate_inode_blocks_exit() const { return at<263>().as_bytes(); }
-  bool has_f2fs_truncate_node() const { return at<264>().valid(); }
-  ::protozero::ConstBytes f2fs_truncate_node() const { return at<264>().as_bytes(); }
-  bool has_f2fs_truncate_nodes_enter() const { return at<265>().valid(); }
-  ::protozero::ConstBytes f2fs_truncate_nodes_enter() const { return at<265>().as_bytes(); }
-  bool has_f2fs_truncate_nodes_exit() const { return at<266>().valid(); }
-  ::protozero::ConstBytes f2fs_truncate_nodes_exit() const { return at<266>().as_bytes(); }
-  bool has_f2fs_truncate_partial_nodes() const { return at<267>().valid(); }
-  ::protozero::ConstBytes f2fs_truncate_partial_nodes() const { return at<267>().as_bytes(); }
-  bool has_f2fs_unlink_enter() const { return at<268>().valid(); }
-  ::protozero::ConstBytes f2fs_unlink_enter() const { return at<268>().as_bytes(); }
-  bool has_f2fs_unlink_exit() const { return at<269>().valid(); }
-  ::protozero::ConstBytes f2fs_unlink_exit() const { return at<269>().as_bytes(); }
-  bool has_f2fs_vm_page_mkwrite() const { return at<270>().valid(); }
-  ::protozero::ConstBytes f2fs_vm_page_mkwrite() const { return at<270>().as_bytes(); }
-  bool has_f2fs_write_begin() const { return at<271>().valid(); }
-  ::protozero::ConstBytes f2fs_write_begin() const { return at<271>().as_bytes(); }
-  bool has_f2fs_write_checkpoint() const { return at<272>().valid(); }
-  ::protozero::ConstBytes f2fs_write_checkpoint() const { return at<272>().as_bytes(); }
-  bool has_f2fs_write_end() const { return at<273>().valid(); }
-  ::protozero::ConstBytes f2fs_write_end() const { return at<273>().as_bytes(); }
-  bool has_alloc_pages_iommu_end() const { return at<274>().valid(); }
-  ::protozero::ConstBytes alloc_pages_iommu_end() const { return at<274>().as_bytes(); }
-  bool has_alloc_pages_iommu_fail() const { return at<275>().valid(); }
-  ::protozero::ConstBytes alloc_pages_iommu_fail() const { return at<275>().as_bytes(); }
-  bool has_alloc_pages_iommu_start() const { return at<276>().valid(); }
-  ::protozero::ConstBytes alloc_pages_iommu_start() const { return at<276>().as_bytes(); }
-  bool has_alloc_pages_sys_end() const { return at<277>().valid(); }
-  ::protozero::ConstBytes alloc_pages_sys_end() const { return at<277>().as_bytes(); }
-  bool has_alloc_pages_sys_fail() const { return at<278>().valid(); }
-  ::protozero::ConstBytes alloc_pages_sys_fail() const { return at<278>().as_bytes(); }
-  bool has_alloc_pages_sys_start() const { return at<279>().valid(); }
-  ::protozero::ConstBytes alloc_pages_sys_start() const { return at<279>().as_bytes(); }
-  bool has_dma_alloc_contiguous_retry() const { return at<280>().valid(); }
-  ::protozero::ConstBytes dma_alloc_contiguous_retry() const { return at<280>().as_bytes(); }
-  bool has_iommu_map_range() const { return at<281>().valid(); }
-  ::protozero::ConstBytes iommu_map_range() const { return at<281>().as_bytes(); }
-  bool has_iommu_sec_ptbl_map_range_end() const { return at<282>().valid(); }
-  ::protozero::ConstBytes iommu_sec_ptbl_map_range_end() const { return at<282>().as_bytes(); }
-  bool has_iommu_sec_ptbl_map_range_start() const { return at<283>().valid(); }
-  ::protozero::ConstBytes iommu_sec_ptbl_map_range_start() const { return at<283>().as_bytes(); }
-  bool has_ion_alloc_buffer_end() const { return at<284>().valid(); }
-  ::protozero::ConstBytes ion_alloc_buffer_end() const { return at<284>().as_bytes(); }
-  bool has_ion_alloc_buffer_fail() const { return at<285>().valid(); }
-  ::protozero::ConstBytes ion_alloc_buffer_fail() const { return at<285>().as_bytes(); }
-  bool has_ion_alloc_buffer_fallback() const { return at<286>().valid(); }
-  ::protozero::ConstBytes ion_alloc_buffer_fallback() const { return at<286>().as_bytes(); }
-  bool has_ion_alloc_buffer_start() const { return at<287>().valid(); }
-  ::protozero::ConstBytes ion_alloc_buffer_start() const { return at<287>().as_bytes(); }
-  bool has_ion_cp_alloc_retry() const { return at<288>().valid(); }
-  ::protozero::ConstBytes ion_cp_alloc_retry() const { return at<288>().as_bytes(); }
-  bool has_ion_cp_secure_buffer_end() const { return at<289>().valid(); }
-  ::protozero::ConstBytes ion_cp_secure_buffer_end() const { return at<289>().as_bytes(); }
-  bool has_ion_cp_secure_buffer_start() const { return at<290>().valid(); }
-  ::protozero::ConstBytes ion_cp_secure_buffer_start() const { return at<290>().as_bytes(); }
-  bool has_ion_prefetching() const { return at<291>().valid(); }
-  ::protozero::ConstBytes ion_prefetching() const { return at<291>().as_bytes(); }
-  bool has_ion_secure_cma_add_to_pool_end() const { return at<292>().valid(); }
-  ::protozero::ConstBytes ion_secure_cma_add_to_pool_end() const { return at<292>().as_bytes(); }
-  bool has_ion_secure_cma_add_to_pool_start() const { return at<293>().valid(); }
-  ::protozero::ConstBytes ion_secure_cma_add_to_pool_start() const { return at<293>().as_bytes(); }
-  bool has_ion_secure_cma_allocate_end() const { return at<294>().valid(); }
-  ::protozero::ConstBytes ion_secure_cma_allocate_end() const { return at<294>().as_bytes(); }
-  bool has_ion_secure_cma_allocate_start() const { return at<295>().valid(); }
-  ::protozero::ConstBytes ion_secure_cma_allocate_start() const { return at<295>().as_bytes(); }
-  bool has_ion_secure_cma_shrink_pool_end() const { return at<296>().valid(); }
-  ::protozero::ConstBytes ion_secure_cma_shrink_pool_end() const { return at<296>().as_bytes(); }
-  bool has_ion_secure_cma_shrink_pool_start() const { return at<297>().valid(); }
-  ::protozero::ConstBytes ion_secure_cma_shrink_pool_start() const { return at<297>().as_bytes(); }
-  bool has_kfree() const { return at<298>().valid(); }
-  ::protozero::ConstBytes kfree() const { return at<298>().as_bytes(); }
-  bool has_kmalloc() const { return at<299>().valid(); }
-  ::protozero::ConstBytes kmalloc() const { return at<299>().as_bytes(); }
-  bool has_kmalloc_node() const { return at<300>().valid(); }
-  ::protozero::ConstBytes kmalloc_node() const { return at<300>().as_bytes(); }
-  bool has_kmem_cache_alloc() const { return at<301>().valid(); }
-  ::protozero::ConstBytes kmem_cache_alloc() const { return at<301>().as_bytes(); }
-  bool has_kmem_cache_alloc_node() const { return at<302>().valid(); }
-  ::protozero::ConstBytes kmem_cache_alloc_node() const { return at<302>().as_bytes(); }
-  bool has_kmem_cache_free() const { return at<303>().valid(); }
-  ::protozero::ConstBytes kmem_cache_free() const { return at<303>().as_bytes(); }
-  bool has_migrate_pages_end() const { return at<304>().valid(); }
-  ::protozero::ConstBytes migrate_pages_end() const { return at<304>().as_bytes(); }
-  bool has_migrate_pages_start() const { return at<305>().valid(); }
-  ::protozero::ConstBytes migrate_pages_start() const { return at<305>().as_bytes(); }
-  bool has_migrate_retry() const { return at<306>().valid(); }
-  ::protozero::ConstBytes migrate_retry() const { return at<306>().as_bytes(); }
-  bool has_mm_page_alloc() const { return at<307>().valid(); }
-  ::protozero::ConstBytes mm_page_alloc() const { return at<307>().as_bytes(); }
-  bool has_mm_page_alloc_extfrag() const { return at<308>().valid(); }
-  ::protozero::ConstBytes mm_page_alloc_extfrag() const { return at<308>().as_bytes(); }
-  bool has_mm_page_alloc_zone_locked() const { return at<309>().valid(); }
-  ::protozero::ConstBytes mm_page_alloc_zone_locked() const { return at<309>().as_bytes(); }
-  bool has_mm_page_free() const { return at<310>().valid(); }
-  ::protozero::ConstBytes mm_page_free() const { return at<310>().as_bytes(); }
-  bool has_mm_page_free_batched() const { return at<311>().valid(); }
-  ::protozero::ConstBytes mm_page_free_batched() const { return at<311>().as_bytes(); }
-  bool has_mm_page_pcpu_drain() const { return at<312>().valid(); }
-  ::protozero::ConstBytes mm_page_pcpu_drain() const { return at<312>().as_bytes(); }
-  bool has_rss_stat() const { return at<313>().valid(); }
-  ::protozero::ConstBytes rss_stat() const { return at<313>().as_bytes(); }
-  bool has_ion_heap_shrink() const { return at<314>().valid(); }
-  ::protozero::ConstBytes ion_heap_shrink() const { return at<314>().as_bytes(); }
-  bool has_ion_heap_grow() const { return at<315>().valid(); }
-  ::protozero::ConstBytes ion_heap_grow() const { return at<315>().as_bytes(); }
-  bool has_fence_init() const { return at<316>().valid(); }
-  ::protozero::ConstBytes fence_init() const { return at<316>().as_bytes(); }
-  bool has_fence_destroy() const { return at<317>().valid(); }
-  ::protozero::ConstBytes fence_destroy() const { return at<317>().as_bytes(); }
-  bool has_fence_enable_signal() const { return at<318>().valid(); }
-  ::protozero::ConstBytes fence_enable_signal() const { return at<318>().as_bytes(); }
-  bool has_fence_signaled() const { return at<319>().valid(); }
-  ::protozero::ConstBytes fence_signaled() const { return at<319>().as_bytes(); }
-  bool has_clk_enable() const { return at<320>().valid(); }
-  ::protozero::ConstBytes clk_enable() const { return at<320>().as_bytes(); }
-  bool has_clk_disable() const { return at<321>().valid(); }
-  ::protozero::ConstBytes clk_disable() const { return at<321>().as_bytes(); }
-  bool has_clk_set_rate() const { return at<322>().valid(); }
-  ::protozero::ConstBytes clk_set_rate() const { return at<322>().as_bytes(); }
-  bool has_binder_transaction_alloc_buf() const { return at<323>().valid(); }
-  ::protozero::ConstBytes binder_transaction_alloc_buf() const { return at<323>().as_bytes(); }
-  bool has_signal_deliver() const { return at<324>().valid(); }
-  ::protozero::ConstBytes signal_deliver() const { return at<324>().as_bytes(); }
-  bool has_signal_generate() const { return at<325>().valid(); }
-  ::protozero::ConstBytes signal_generate() const { return at<325>().as_bytes(); }
-  bool has_oom_score_adj_update() const { return at<326>().valid(); }
-  ::protozero::ConstBytes oom_score_adj_update() const { return at<326>().as_bytes(); }
-  bool has_generic() const { return at<327>().valid(); }
-  ::protozero::ConstBytes generic() const { return at<327>().as_bytes(); }
-  bool has_mm_event_record() const { return at<328>().valid(); }
-  ::protozero::ConstBytes mm_event_record() const { return at<328>().as_bytes(); }
-  bool has_sys_enter() const { return at<329>().valid(); }
-  ::protozero::ConstBytes sys_enter() const { return at<329>().as_bytes(); }
-  bool has_sys_exit() const { return at<330>().valid(); }
-  ::protozero::ConstBytes sys_exit() const { return at<330>().as_bytes(); }
-  bool has_zero() const { return at<331>().valid(); }
-  ::protozero::ConstBytes zero() const { return at<331>().as_bytes(); }
-  bool has_gpu_frequency() const { return at<332>().valid(); }
-  ::protozero::ConstBytes gpu_frequency() const { return at<332>().as_bytes(); }
-  bool has_sde_tracing_mark_write() const { return at<333>().valid(); }
-  ::protozero::ConstBytes sde_tracing_mark_write() const { return at<333>().as_bytes(); }
-  bool has_mark_victim() const { return at<334>().valid(); }
-  ::protozero::ConstBytes mark_victim() const { return at<334>().as_bytes(); }
-  bool has_ion_stat() const { return at<335>().valid(); }
-  ::protozero::ConstBytes ion_stat() const { return at<335>().as_bytes(); }
-  bool has_ion_buffer_create() const { return at<336>().valid(); }
-  ::protozero::ConstBytes ion_buffer_create() const { return at<336>().as_bytes(); }
-  bool has_ion_buffer_destroy() const { return at<337>().valid(); }
-  ::protozero::ConstBytes ion_buffer_destroy() const { return at<337>().as_bytes(); }
-  bool has_scm_call_start() const { return at<338>().valid(); }
-  ::protozero::ConstBytes scm_call_start() const { return at<338>().as_bytes(); }
-  bool has_scm_call_end() const { return at<339>().valid(); }
-  ::protozero::ConstBytes scm_call_end() const { return at<339>().as_bytes(); }
-  bool has_gpu_mem_total() const { return at<340>().valid(); }
-  ::protozero::ConstBytes gpu_mem_total() const { return at<340>().as_bytes(); }
-  bool has_thermal_temperature() const { return at<341>().valid(); }
-  ::protozero::ConstBytes thermal_temperature() const { return at<341>().as_bytes(); }
-  bool has_cdev_update() const { return at<342>().valid(); }
-  ::protozero::ConstBytes cdev_update() const { return at<342>().as_bytes(); }
-  bool has_cpuhp_exit() const { return at<343>().valid(); }
-  ::protozero::ConstBytes cpuhp_exit() const { return at<343>().as_bytes(); }
-  bool has_cpuhp_multi_enter() const { return at<344>().valid(); }
-  ::protozero::ConstBytes cpuhp_multi_enter() const { return at<344>().as_bytes(); }
-  bool has_cpuhp_enter() const { return at<345>().valid(); }
-  ::protozero::ConstBytes cpuhp_enter() const { return at<345>().as_bytes(); }
-  bool has_cpuhp_latency() const { return at<346>().valid(); }
-  ::protozero::ConstBytes cpuhp_latency() const { return at<346>().as_bytes(); }
-  bool has_fastrpc_dma_stat() const { return at<347>().valid(); }
-  ::protozero::ConstBytes fastrpc_dma_stat() const { return at<347>().as_bytes(); }
-  bool has_dpu_tracing_mark_write() const { return at<348>().valid(); }
-  ::protozero::ConstBytes dpu_tracing_mark_write() const { return at<348>().as_bytes(); }
-  bool has_g2d_tracing_mark_write() const { return at<349>().valid(); }
-  ::protozero::ConstBytes g2d_tracing_mark_write() const { return at<349>().as_bytes(); }
-  bool has_mali_tracing_mark_write() const { return at<350>().valid(); }
-  ::protozero::ConstBytes mali_tracing_mark_write() const { return at<350>().as_bytes(); }
-  bool has_dma_heap_stat() const { return at<351>().valid(); }
-  ::protozero::ConstBytes dma_heap_stat() const { return at<351>().as_bytes(); }
-  bool has_cpuhp_pause() const { return at<352>().valid(); }
-  ::protozero::ConstBytes cpuhp_pause() const { return at<352>().as_bytes(); }
-  bool has_sched_pi_setprio() const { return at<353>().valid(); }
-  ::protozero::ConstBytes sched_pi_setprio() const { return at<353>().as_bytes(); }
-  bool has_sde_sde_evtlog() const { return at<354>().valid(); }
-  ::protozero::ConstBytes sde_sde_evtlog() const { return at<354>().as_bytes(); }
-  bool has_sde_sde_perf_calc_crtc() const { return at<355>().valid(); }
-  ::protozero::ConstBytes sde_sde_perf_calc_crtc() const { return at<355>().as_bytes(); }
-  bool has_sde_sde_perf_crtc_update() const { return at<356>().valid(); }
-  ::protozero::ConstBytes sde_sde_perf_crtc_update() const { return at<356>().as_bytes(); }
-  bool has_sde_sde_perf_set_qos_luts() const { return at<357>().valid(); }
-  ::protozero::ConstBytes sde_sde_perf_set_qos_luts() const { return at<357>().as_bytes(); }
-  bool has_sde_sde_perf_update_bus() const { return at<358>().valid(); }
-  ::protozero::ConstBytes sde_sde_perf_update_bus() const { return at<358>().as_bytes(); }
-};
-
-class FtraceEvent : public ::protozero::Message {
- public:
-  using Decoder = FtraceEvent_Decoder;
-  enum : int32_t {
-    kTimestampFieldNumber = 1,
-    kPidFieldNumber = 2,
-    kPrintFieldNumber = 3,
-    kSchedSwitchFieldNumber = 4,
-    kCpuFrequencyFieldNumber = 11,
-    kCpuFrequencyLimitsFieldNumber = 12,
-    kCpuIdleFieldNumber = 13,
-    kClockEnableFieldNumber = 14,
-    kClockDisableFieldNumber = 15,
-    kClockSetRateFieldNumber = 16,
-    kSchedWakeupFieldNumber = 17,
-    kSchedBlockedReasonFieldNumber = 18,
-    kSchedCpuHotplugFieldNumber = 19,
-    kSchedWakingFieldNumber = 20,
-    kIpiEntryFieldNumber = 21,
-    kIpiExitFieldNumber = 22,
-    kIpiRaiseFieldNumber = 23,
-    kSoftirqEntryFieldNumber = 24,
-    kSoftirqExitFieldNumber = 25,
-    kSoftirqRaiseFieldNumber = 26,
-    kI2cReadFieldNumber = 27,
-    kI2cWriteFieldNumber = 28,
-    kI2cResultFieldNumber = 29,
-    kI2cReplyFieldNumber = 30,
-    kSmbusReadFieldNumber = 31,
-    kSmbusWriteFieldNumber = 32,
-    kSmbusResultFieldNumber = 33,
-    kSmbusReplyFieldNumber = 34,
-    kLowmemoryKillFieldNumber = 35,
-    kIrqHandlerEntryFieldNumber = 36,
-    kIrqHandlerExitFieldNumber = 37,
-    kSyncPtFieldNumber = 38,
-    kSyncTimelineFieldNumber = 39,
-    kSyncWaitFieldNumber = 40,
-    kExt4DaWriteBeginFieldNumber = 41,
-    kExt4DaWriteEndFieldNumber = 42,
-    kExt4SyncFileEnterFieldNumber = 43,
-    kExt4SyncFileExitFieldNumber = 44,
-    kBlockRqIssueFieldNumber = 45,
-    kMmVmscanDirectReclaimBeginFieldNumber = 46,
-    kMmVmscanDirectReclaimEndFieldNumber = 47,
-    kMmVmscanKswapdWakeFieldNumber = 48,
-    kMmVmscanKswapdSleepFieldNumber = 49,
-    kBinderTransactionFieldNumber = 50,
-    kBinderTransactionReceivedFieldNumber = 51,
-    kBinderSetPriorityFieldNumber = 52,
-    kBinderLockFieldNumber = 53,
-    kBinderLockedFieldNumber = 54,
-    kBinderUnlockFieldNumber = 55,
-    kWorkqueueActivateWorkFieldNumber = 56,
-    kWorkqueueExecuteEndFieldNumber = 57,
-    kWorkqueueExecuteStartFieldNumber = 58,
-    kWorkqueueQueueWorkFieldNumber = 59,
-    kRegulatorDisableFieldNumber = 60,
-    kRegulatorDisableCompleteFieldNumber = 61,
-    kRegulatorEnableFieldNumber = 62,
-    kRegulatorEnableCompleteFieldNumber = 63,
-    kRegulatorEnableDelayFieldNumber = 64,
-    kRegulatorSetVoltageFieldNumber = 65,
-    kRegulatorSetVoltageCompleteFieldNumber = 66,
-    kCgroupAttachTaskFieldNumber = 67,
-    kCgroupMkdirFieldNumber = 68,
-    kCgroupRemountFieldNumber = 69,
-    kCgroupRmdirFieldNumber = 70,
-    kCgroupTransferTasksFieldNumber = 71,
-    kCgroupDestroyRootFieldNumber = 72,
-    kCgroupReleaseFieldNumber = 73,
-    kCgroupRenameFieldNumber = 74,
-    kCgroupSetupRootFieldNumber = 75,
-    kMdpCmdKickoffFieldNumber = 76,
-    kMdpCommitFieldNumber = 77,
-    kMdpPerfSetOtFieldNumber = 78,
-    kMdpSsppChangeFieldNumber = 79,
-    kTracingMarkWriteFieldNumber = 80,
-    kMdpCmdPingpongDoneFieldNumber = 81,
-    kMdpCompareBwFieldNumber = 82,
-    kMdpPerfSetPanicLutsFieldNumber = 83,
-    kMdpSsppSetFieldNumber = 84,
-    kMdpCmdReadptrDoneFieldNumber = 85,
-    kMdpMisrCrcFieldNumber = 86,
-    kMdpPerfSetQosLutsFieldNumber = 87,
-    kMdpTraceCounterFieldNumber = 88,
-    kMdpCmdReleaseBwFieldNumber = 89,
-    kMdpMixerUpdateFieldNumber = 90,
-    kMdpPerfSetWmLevelsFieldNumber = 91,
-    kMdpVideoUnderrunDoneFieldNumber = 92,
-    kMdpCmdWaitPingpongFieldNumber = 93,
-    kMdpPerfPrefillCalcFieldNumber = 94,
-    kMdpPerfUpdateBusFieldNumber = 95,
-    kRotatorBwAoAsContextFieldNumber = 96,
-    kMmFilemapAddToPageCacheFieldNumber = 97,
-    kMmFilemapDeleteFromPageCacheFieldNumber = 98,
-    kMmCompactionBeginFieldNumber = 99,
-    kMmCompactionDeferCompactionFieldNumber = 100,
-    kMmCompactionDeferredFieldNumber = 101,
-    kMmCompactionDeferResetFieldNumber = 102,
-    kMmCompactionEndFieldNumber = 103,
-    kMmCompactionFinishedFieldNumber = 104,
-    kMmCompactionIsolateFreepagesFieldNumber = 105,
-    kMmCompactionIsolateMigratepagesFieldNumber = 106,
-    kMmCompactionKcompactdSleepFieldNumber = 107,
-    kMmCompactionKcompactdWakeFieldNumber = 108,
-    kMmCompactionMigratepagesFieldNumber = 109,
-    kMmCompactionSuitableFieldNumber = 110,
-    kMmCompactionTryToCompactPagesFieldNumber = 111,
-    kMmCompactionWakeupKcompactdFieldNumber = 112,
-    kSuspendResumeFieldNumber = 113,
-    kSchedWakeupNewFieldNumber = 114,
-    kBlockBioBackmergeFieldNumber = 115,
-    kBlockBioBounceFieldNumber = 116,
-    kBlockBioCompleteFieldNumber = 117,
-    kBlockBioFrontmergeFieldNumber = 118,
-    kBlockBioQueueFieldNumber = 119,
-    kBlockBioRemapFieldNumber = 120,
-    kBlockDirtyBufferFieldNumber = 121,
-    kBlockGetrqFieldNumber = 122,
-    kBlockPlugFieldNumber = 123,
-    kBlockRqAbortFieldNumber = 124,
-    kBlockRqCompleteFieldNumber = 125,
-    kBlockRqInsertFieldNumber = 126,
-    kBlockRqRemapFieldNumber = 128,
-    kBlockRqRequeueFieldNumber = 129,
-    kBlockSleeprqFieldNumber = 130,
-    kBlockSplitFieldNumber = 131,
-    kBlockTouchBufferFieldNumber = 132,
-    kBlockUnplugFieldNumber = 133,
-    kExt4AllocDaBlocksFieldNumber = 134,
-    kExt4AllocateBlocksFieldNumber = 135,
-    kExt4AllocateInodeFieldNumber = 136,
-    kExt4BeginOrderedTruncateFieldNumber = 137,
-    kExt4CollapseRangeFieldNumber = 138,
-    kExt4DaReleaseSpaceFieldNumber = 139,
-    kExt4DaReserveSpaceFieldNumber = 140,
-    kExt4DaUpdateReserveSpaceFieldNumber = 141,
-    kExt4DaWritePagesFieldNumber = 142,
-    kExt4DaWritePagesExtentFieldNumber = 143,
-    kExt4DirectIOEnterFieldNumber = 144,
-    kExt4DirectIOExitFieldNumber = 145,
-    kExt4DiscardBlocksFieldNumber = 146,
-    kExt4DiscardPreallocationsFieldNumber = 147,
-    kExt4DropInodeFieldNumber = 148,
-    kExt4EsCacheExtentFieldNumber = 149,
-    kExt4EsFindDelayedExtentRangeEnterFieldNumber = 150,
-    kExt4EsFindDelayedExtentRangeExitFieldNumber = 151,
-    kExt4EsInsertExtentFieldNumber = 152,
-    kExt4EsLookupExtentEnterFieldNumber = 153,
-    kExt4EsLookupExtentExitFieldNumber = 154,
-    kExt4EsRemoveExtentFieldNumber = 155,
-    kExt4EsShrinkFieldNumber = 156,
-    kExt4EsShrinkCountFieldNumber = 157,
-    kExt4EsShrinkScanEnterFieldNumber = 158,
-    kExt4EsShrinkScanExitFieldNumber = 159,
-    kExt4EvictInodeFieldNumber = 160,
-    kExt4ExtConvertToInitializedEnterFieldNumber = 161,
-    kExt4ExtConvertToInitializedFastpathFieldNumber = 162,
-    kExt4ExtHandleUnwrittenExtentsFieldNumber = 163,
-    kExt4ExtInCacheFieldNumber = 164,
-    kExt4ExtLoadExtentFieldNumber = 165,
-    kExt4ExtMapBlocksEnterFieldNumber = 166,
-    kExt4ExtMapBlocksExitFieldNumber = 167,
-    kExt4ExtPutInCacheFieldNumber = 168,
-    kExt4ExtRemoveSpaceFieldNumber = 169,
-    kExt4ExtRemoveSpaceDoneFieldNumber = 170,
-    kExt4ExtRmIdxFieldNumber = 171,
-    kExt4ExtRmLeafFieldNumber = 172,
-    kExt4ExtShowExtentFieldNumber = 173,
-    kExt4FallocateEnterFieldNumber = 174,
-    kExt4FallocateExitFieldNumber = 175,
-    kExt4FindDelallocRangeFieldNumber = 176,
-    kExt4ForgetFieldNumber = 177,
-    kExt4FreeBlocksFieldNumber = 178,
-    kExt4FreeInodeFieldNumber = 179,
-    kExt4GetImpliedClusterAllocExitFieldNumber = 180,
-    kExt4GetReservedClusterAllocFieldNumber = 181,
-    kExt4IndMapBlocksEnterFieldNumber = 182,
-    kExt4IndMapBlocksExitFieldNumber = 183,
-    kExt4InsertRangeFieldNumber = 184,
-    kExt4InvalidatepageFieldNumber = 185,
-    kExt4JournalStartFieldNumber = 186,
-    kExt4JournalStartReservedFieldNumber = 187,
-    kExt4JournalledInvalidatepageFieldNumber = 188,
-    kExt4JournalledWriteEndFieldNumber = 189,
-    kExt4LoadInodeFieldNumber = 190,
-    kExt4LoadInodeBitmapFieldNumber = 191,
-    kExt4MarkInodeDirtyFieldNumber = 192,
-    kExt4MbBitmapLoadFieldNumber = 193,
-    kExt4MbBuddyBitmapLoadFieldNumber = 194,
-    kExt4MbDiscardPreallocationsFieldNumber = 195,
-    kExt4MbNewGroupPaFieldNumber = 196,
-    kExt4MbNewInodePaFieldNumber = 197,
-    kExt4MbReleaseGroupPaFieldNumber = 198,
-    kExt4MbReleaseInodePaFieldNumber = 199,
-    kExt4MballocAllocFieldNumber = 200,
-    kExt4MballocDiscardFieldNumber = 201,
-    kExt4MballocFreeFieldNumber = 202,
-    kExt4MballocPreallocFieldNumber = 203,
-    kExt4OtherInodeUpdateTimeFieldNumber = 204,
-    kExt4PunchHoleFieldNumber = 205,
-    kExt4ReadBlockBitmapLoadFieldNumber = 206,
-    kExt4ReadpageFieldNumber = 207,
-    kExt4ReleasepageFieldNumber = 208,
-    kExt4RemoveBlocksFieldNumber = 209,
-    kExt4RequestBlocksFieldNumber = 210,
-    kExt4RequestInodeFieldNumber = 211,
-    kExt4SyncFsFieldNumber = 212,
-    kExt4TrimAllFreeFieldNumber = 213,
-    kExt4TrimExtentFieldNumber = 214,
-    kExt4TruncateEnterFieldNumber = 215,
-    kExt4TruncateExitFieldNumber = 216,
-    kExt4UnlinkEnterFieldNumber = 217,
-    kExt4UnlinkExitFieldNumber = 218,
-    kExt4WriteBeginFieldNumber = 219,
-    kExt4WriteEndFieldNumber = 230,
-    kExt4WritepageFieldNumber = 231,
-    kExt4WritepagesFieldNumber = 232,
-    kExt4WritepagesResultFieldNumber = 233,
-    kExt4ZeroRangeFieldNumber = 234,
-    kTaskNewtaskFieldNumber = 235,
-    kTaskRenameFieldNumber = 236,
-    kSchedProcessExecFieldNumber = 237,
-    kSchedProcessExitFieldNumber = 238,
-    kSchedProcessForkFieldNumber = 239,
-    kSchedProcessFreeFieldNumber = 240,
-    kSchedProcessHangFieldNumber = 241,
-    kSchedProcessWaitFieldNumber = 242,
-    kF2fsDoSubmitBioFieldNumber = 243,
-    kF2fsEvictInodeFieldNumber = 244,
-    kF2fsFallocateFieldNumber = 245,
-    kF2fsGetDataBlockFieldNumber = 246,
-    kF2fsGetVictimFieldNumber = 247,
-    kF2fsIgetFieldNumber = 248,
-    kF2fsIgetExitFieldNumber = 249,
-    kF2fsNewInodeFieldNumber = 250,
-    kF2fsReadpageFieldNumber = 251,
-    kF2fsReserveNewBlockFieldNumber = 252,
-    kF2fsSetPageDirtyFieldNumber = 253,
-    kF2fsSubmitWritePageFieldNumber = 254,
-    kF2fsSyncFileEnterFieldNumber = 255,
-    kF2fsSyncFileExitFieldNumber = 256,
-    kF2fsSyncFsFieldNumber = 257,
-    kF2fsTruncateFieldNumber = 258,
-    kF2fsTruncateBlocksEnterFieldNumber = 259,
-    kF2fsTruncateBlocksExitFieldNumber = 260,
-    kF2fsTruncateDataBlocksRangeFieldNumber = 261,
-    kF2fsTruncateInodeBlocksEnterFieldNumber = 262,
-    kF2fsTruncateInodeBlocksExitFieldNumber = 263,
-    kF2fsTruncateNodeFieldNumber = 264,
-    kF2fsTruncateNodesEnterFieldNumber = 265,
-    kF2fsTruncateNodesExitFieldNumber = 266,
-    kF2fsTruncatePartialNodesFieldNumber = 267,
-    kF2fsUnlinkEnterFieldNumber = 268,
-    kF2fsUnlinkExitFieldNumber = 269,
-    kF2fsVmPageMkwriteFieldNumber = 270,
-    kF2fsWriteBeginFieldNumber = 271,
-    kF2fsWriteCheckpointFieldNumber = 272,
-    kF2fsWriteEndFieldNumber = 273,
-    kAllocPagesIommuEndFieldNumber = 274,
-    kAllocPagesIommuFailFieldNumber = 275,
-    kAllocPagesIommuStartFieldNumber = 276,
-    kAllocPagesSysEndFieldNumber = 277,
-    kAllocPagesSysFailFieldNumber = 278,
-    kAllocPagesSysStartFieldNumber = 279,
-    kDmaAllocContiguousRetryFieldNumber = 280,
-    kIommuMapRangeFieldNumber = 281,
-    kIommuSecPtblMapRangeEndFieldNumber = 282,
-    kIommuSecPtblMapRangeStartFieldNumber = 283,
-    kIonAllocBufferEndFieldNumber = 284,
-    kIonAllocBufferFailFieldNumber = 285,
-    kIonAllocBufferFallbackFieldNumber = 286,
-    kIonAllocBufferStartFieldNumber = 287,
-    kIonCpAllocRetryFieldNumber = 288,
-    kIonCpSecureBufferEndFieldNumber = 289,
-    kIonCpSecureBufferStartFieldNumber = 290,
-    kIonPrefetchingFieldNumber = 291,
-    kIonSecureCmaAddToPoolEndFieldNumber = 292,
-    kIonSecureCmaAddToPoolStartFieldNumber = 293,
-    kIonSecureCmaAllocateEndFieldNumber = 294,
-    kIonSecureCmaAllocateStartFieldNumber = 295,
-    kIonSecureCmaShrinkPoolEndFieldNumber = 296,
-    kIonSecureCmaShrinkPoolStartFieldNumber = 297,
-    kKfreeFieldNumber = 298,
-    kKmallocFieldNumber = 299,
-    kKmallocNodeFieldNumber = 300,
-    kKmemCacheAllocFieldNumber = 301,
-    kKmemCacheAllocNodeFieldNumber = 302,
-    kKmemCacheFreeFieldNumber = 303,
-    kMigratePagesEndFieldNumber = 304,
-    kMigratePagesStartFieldNumber = 305,
-    kMigrateRetryFieldNumber = 306,
-    kMmPageAllocFieldNumber = 307,
-    kMmPageAllocExtfragFieldNumber = 308,
-    kMmPageAllocZoneLockedFieldNumber = 309,
-    kMmPageFreeFieldNumber = 310,
-    kMmPageFreeBatchedFieldNumber = 311,
-    kMmPagePcpuDrainFieldNumber = 312,
-    kRssStatFieldNumber = 313,
-    kIonHeapShrinkFieldNumber = 314,
-    kIonHeapGrowFieldNumber = 315,
-    kFenceInitFieldNumber = 316,
-    kFenceDestroyFieldNumber = 317,
-    kFenceEnableSignalFieldNumber = 318,
-    kFenceSignaledFieldNumber = 319,
-    kClkEnableFieldNumber = 320,
-    kClkDisableFieldNumber = 321,
-    kClkSetRateFieldNumber = 322,
-    kBinderTransactionAllocBufFieldNumber = 323,
-    kSignalDeliverFieldNumber = 324,
-    kSignalGenerateFieldNumber = 325,
-    kOomScoreAdjUpdateFieldNumber = 326,
-    kGenericFieldNumber = 327,
-    kMmEventRecordFieldNumber = 328,
-    kSysEnterFieldNumber = 329,
-    kSysExitFieldNumber = 330,
-    kZeroFieldNumber = 331,
-    kGpuFrequencyFieldNumber = 332,
-    kSdeTracingMarkWriteFieldNumber = 333,
-    kMarkVictimFieldNumber = 334,
-    kIonStatFieldNumber = 335,
-    kIonBufferCreateFieldNumber = 336,
-    kIonBufferDestroyFieldNumber = 337,
-    kScmCallStartFieldNumber = 338,
-    kScmCallEndFieldNumber = 339,
-    kGpuMemTotalFieldNumber = 340,
-    kThermalTemperatureFieldNumber = 341,
-    kCdevUpdateFieldNumber = 342,
-    kCpuhpExitFieldNumber = 343,
-    kCpuhpMultiEnterFieldNumber = 344,
-    kCpuhpEnterFieldNumber = 345,
-    kCpuhpLatencyFieldNumber = 346,
-    kFastrpcDmaStatFieldNumber = 347,
-    kDpuTracingMarkWriteFieldNumber = 348,
-    kG2dTracingMarkWriteFieldNumber = 349,
-    kMaliTracingMarkWriteFieldNumber = 350,
-    kDmaHeapStatFieldNumber = 351,
-    kCpuhpPauseFieldNumber = 352,
-    kSchedPiSetprioFieldNumber = 353,
-    kSdeSdeEvtlogFieldNumber = 354,
-    kSdeSdePerfCalcCrtcFieldNumber = 355,
-    kSdeSdePerfCrtcUpdateFieldNumber = 356,
-    kSdeSdePerfSetQosLutsFieldNumber = 357,
-    kSdeSdePerfUpdateBusFieldNumber = 358,
-  };
-
-  using FieldMetadata_Timestamp =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      FtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Timestamp kTimestamp() { return {}; }
-  void set_timestamp(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Timestamp::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Pid =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      FtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Pid kPid() { return {}; }
-  void set_pid(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Pid::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Print =
-    ::protozero::proto_utils::FieldMetadata<
-      3,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      PrintFtraceEvent,
-      FtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Print kPrint() { return {}; }
-  template <typename T = PrintFtraceEvent> T* set_print() {
-    return BeginNestedMessage<T>(3);
-  }
-
-
-  using FieldMetadata_SchedSwitch =
-    ::protozero::proto_utils::FieldMetadata<
-      4,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      SchedSwitchFtraceEvent,
-      FtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_SchedSwitch kSchedSwitch() { return {}; }
-  template <typename T = SchedSwitchFtraceEvent> T* set_sched_switch() {
-    return BeginNestedMessage<T>(4);
-  }
-
-
-  using FieldMetadata_CpuFrequency =
-    ::protozero::proto_utils::FieldMetadata<
-      11,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      CpuFrequencyFtraceEvent,
-      FtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_CpuFrequency kCpuFrequency() { return {}; }
-  template <typename T = CpuFrequencyFtraceEvent> T* set_cpu_frequency() {
-    return BeginNestedMessage<T>(11);
-  }
-
-
-  using FieldMetadata_CpuFrequencyLimits =
-    ::protozero::proto_utils::FieldMetadata<
-      12,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      CpuFrequencyLimitsFtraceEvent,
-      FtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_CpuFrequencyLimits kCpuFrequencyLimits() { return {}; }
-  template <typename T = CpuFrequencyLimitsFtraceEvent> T* set_cpu_frequency_limits() {
-    return BeginNestedMessage<T>(12);
-  }
-
-
-  using FieldMetadata_CpuIdle =
-    ::protozero::proto_utils::FieldMetadata<
-      13,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      CpuIdleFtraceEvent,
-      FtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_CpuIdle kCpuIdle() { return {}; }
-  template <typename T = CpuIdleFtraceEvent> T* set_cpu_idle() {
-    return BeginNestedMessage<T>(13);
-  }
-
-
-  using FieldMetadata_ClockEnable =
-    ::protozero::proto_utils::FieldMetadata<
-      14,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      ClockEnableFtraceEvent,
-      FtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_ClockEnable kClockEnable() { return {}; }
-  template <typename T = ClockEnableFtraceEvent> T* set_clock_enable() {
-    return BeginNestedMessage<T>(14);
-  }
-
-
-  using FieldMetadata_ClockDisable =
-    ::protozero::proto_utils::FieldMetadata<
-      15,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      ClockDisableFtraceEvent,
-      FtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_ClockDisable kClockDisable() { return {}; }
-  template <typename T = ClockDisableFtraceEvent> T* set_clock_disable() {
-    return BeginNestedMessage<T>(15);
-  }
-
-
-  using FieldMetadata_ClockSetRate =
-    ::protozero::proto_utils::FieldMetadata<
-      16,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      ClockSetRateFtraceEvent,
-      FtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_ClockSetRate kClockSetRate() { return {}; }
-  template <typename T = ClockSetRateFtraceEvent> T* set_clock_set_rate() {
-    return BeginNestedMessage<T>(16);
-  }
-
-
-  using FieldMetadata_SchedWakeup =
-    ::protozero::proto_utils::FieldMetadata<
-      17,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      SchedWakeupFtraceEvent,
-      FtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_SchedWakeup kSchedWakeup() { return {}; }
-  template <typename T = SchedWakeupFtraceEvent> T* set_sched_wakeup() {
-    return BeginNestedMessage<T>(17);
-  }
-
-
-  using FieldMetadata_SchedBlockedReason =
-    ::protozero::proto_utils::FieldMetadata<
-      18,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      SchedBlockedReasonFtraceEvent,
-      FtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_SchedBlockedReason kSchedBlockedReason() { return {}; }
-  template <typename T = SchedBlockedReasonFtraceEvent> T* set_sched_blocked_reason() {
-    return BeginNestedMessage<T>(18);
-  }
-
-
-  using FieldMetadata_SchedCpuHotplug =
-    ::protozero::proto_utils::FieldMetadata<
-      19,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      SchedCpuHotplugFtraceEvent,
-      FtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_SchedCpuHotplug kSchedCpuHotplug() { return {}; }
-  template <typename T = SchedCpuHotplugFtraceEvent> T* set_sched_cpu_hotplug() {
-    return BeginNestedMessage<T>(19);
-  }
-
-
-  using FieldMetadata_SchedWaking =
-    ::protozero::proto_utils::FieldMetadata<
-      20,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      SchedWakingFtraceEvent,
-      FtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_SchedWaking kSchedWaking() { return {}; }
-  template <typename T = SchedWakingFtraceEvent> T* set_sched_waking() {
-    return BeginNestedMessage<T>(20);
-  }
-
-
-  using FieldMetadata_IpiEntry =
-    ::protozero::proto_utils::FieldMetadata<
-      21,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      IpiEntryFtraceEvent,
-      FtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_IpiEntry kIpiEntry() { return {}; }
-  template <typename T = IpiEntryFtraceEvent> T* set_ipi_entry() {
-    return BeginNestedMessage<T>(21);
-  }
-
-
-  using FieldMetadata_IpiExit =
-    ::protozero::proto_utils::FieldMetadata<
-      22,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      IpiExitFtraceEvent,
-      FtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_IpiExit kIpiExit() { return {}; }
-  template <typename T = IpiExitFtraceEvent> T* set_ipi_exit() {
-    return BeginNestedMessage<T>(22);
-  }
-
-
-  using FieldMetadata_IpiRaise =
-    ::protozero::proto_utils::FieldMetadata<
-      23,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      IpiRaiseFtraceEvent,
-      FtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_IpiRaise kIpiRaise() { return {}; }
-  template <typename T = IpiRaiseFtraceEvent> T* set_ipi_raise() {
-    return BeginNestedMessage<T>(23);
-  }
-
-
-  using FieldMetadata_SoftirqEntry =
-    ::protozero::proto_utils::FieldMetadata<
-      24,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      SoftirqEntryFtraceEvent,
-      FtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_SoftirqEntry kSoftirqEntry() { return {}; }
-  template <typename T = SoftirqEntryFtraceEvent> T* set_softirq_entry() {
-    return BeginNestedMessage<T>(24);
-  }
-
-
-  using FieldMetadata_SoftirqExit =
-    ::protozero::proto_utils::FieldMetadata<
-      25,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      SoftirqExitFtraceEvent,
-      FtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_SoftirqExit kSoftirqExit() { return {}; }
-  template <typename T = SoftirqExitFtraceEvent> T* set_softirq_exit() {
-    return BeginNestedMessage<T>(25);
-  }
-
-
-  using FieldMetadata_SoftirqRaise =
-    ::protozero::proto_utils::FieldMetadata<
-      26,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      SoftirqRaiseFtraceEvent,
-      FtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_SoftirqRaise kSoftirqRaise() { return {}; }
-  template <typename T = SoftirqRaiseFtraceEvent> T* set_softirq_raise() {
-    return BeginNestedMessage<T>(26);
-  }
-
-
-  using FieldMetadata_I2cRead =
-    ::protozero::proto_utils::FieldMetadata<
-      27,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      I2cReadFtraceEvent,
-      FtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_I2cRead kI2cRead() { return {}; }
-  template <typename T = I2cReadFtraceEvent> T* set_i2c_read() {
-    return BeginNestedMessage<T>(27);
-  }
-
-
-  using FieldMetadata_I2cWrite =
-    ::protozero::proto_utils::FieldMetadata<
-      28,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      I2cWriteFtraceEvent,
-      FtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_I2cWrite kI2cWrite() { return {}; }
-  template <typename T = I2cWriteFtraceEvent> T* set_i2c_write() {
-    return BeginNestedMessage<T>(28);
-  }
-
-
-  using FieldMetadata_I2cResult =
-    ::protozero::proto_utils::FieldMetadata<
-      29,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      I2cResultFtraceEvent,
-      FtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_I2cResult kI2cResult() { return {}; }
-  template <typename T = I2cResultFtraceEvent> T* set_i2c_result() {
-    return BeginNestedMessage<T>(29);
-  }
-
-
-  using FieldMetadata_I2cReply =
-    ::protozero::proto_utils::FieldMetadata<
-      30,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      I2cReplyFtraceEvent,
-      FtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_I2cReply kI2cReply() { return {}; }
-  template <typename T = I2cReplyFtraceEvent> T* set_i2c_reply() {
-    return BeginNestedMessage<T>(30);
-  }
-
-
-  using FieldMetadata_SmbusRead =
-    ::protozero::proto_utils::FieldMetadata<
-      31,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      SmbusReadFtraceEvent,
-      FtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_SmbusRead kSmbusRead() { return {}; }
-  template <typename T = SmbusReadFtraceEvent> T* set_smbus_read() {
-    return BeginNestedMessage<T>(31);
-  }
-
-
-  using FieldMetadata_SmbusWrite =
-    ::protozero::proto_utils::FieldMetadata<
-      32,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      SmbusWriteFtraceEvent,
-      FtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_SmbusWrite kSmbusWrite() { return {}; }
-  template <typename T = SmbusWriteFtraceEvent> T* set_smbus_write() {
-    return BeginNestedMessage<T>(32);
-  }
-
-
-  using FieldMetadata_SmbusResult =
-    ::protozero::proto_utils::FieldMetadata<
-      33,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      SmbusResultFtraceEvent,
-      FtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_SmbusResult kSmbusResult() { return {}; }
-  template <typename T = SmbusResultFtraceEvent> T* set_smbus_result() {
-    return BeginNestedMessage<T>(33);
-  }
-
-
-  using FieldMetadata_SmbusReply =
-    ::protozero::proto_utils::FieldMetadata<
-      34,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      SmbusReplyFtraceEvent,
-      FtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_SmbusReply kSmbusReply() { return {}; }
-  template <typename T = SmbusReplyFtraceEvent> T* set_smbus_reply() {
-    return BeginNestedMessage<T>(34);
-  }
-
-
-  using FieldMetadata_LowmemoryKill =
-    ::protozero::proto_utils::FieldMetadata<
-      35,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      LowmemoryKillFtraceEvent,
-      FtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_LowmemoryKill kLowmemoryKill() { return {}; }
-  template <typename T = LowmemoryKillFtraceEvent> T* set_lowmemory_kill() {
-    return BeginNestedMessage<T>(35);
-  }
-
-
-  using FieldMetadata_IrqHandlerEntry =
-    ::protozero::proto_utils::FieldMetadata<
-      36,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      IrqHandlerEntryFtraceEvent,
-      FtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_IrqHandlerEntry kIrqHandlerEntry() { return {}; }
-  template <typename T = IrqHandlerEntryFtraceEvent> T* set_irq_handler_entry() {
-    return BeginNestedMessage<T>(36);
-  }
-
-
-  using FieldMetadata_IrqHandlerExit =
-    ::protozero::proto_utils::FieldMetadata<
-      37,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      IrqHandlerExitFtraceEvent,
-      FtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_IrqHandlerExit kIrqHandlerExit() { return {}; }
-  template <typename T = IrqHandlerExitFtraceEvent> T* set_irq_handler_exit() {
-    return BeginNestedMessage<T>(37);
-  }
-
-
-  using FieldMetadata_SyncPt =
-    ::protozero::proto_utils::FieldMetadata<
-      38,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      SyncPtFtraceEvent,
-      FtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_SyncPt kSyncPt() { return {}; }
-  template <typename T = SyncPtFtraceEvent> T* set_sync_pt() {
-    return BeginNestedMessage<T>(38);
-  }
-
-
-  using FieldMetadata_SyncTimeline =
-    ::protozero::proto_utils::FieldMetadata<
-      39,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      SyncTimelineFtraceEvent,
-      FtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_SyncTimeline kSyncTimeline() { return {}; }
-  template <typename T = SyncTimelineFtraceEvent> T* set_sync_timeline() {
-    return BeginNestedMessage<T>(39);
-  }
-
-
-  using FieldMetadata_SyncWait =
-    ::protozero::proto_utils::FieldMetadata<
-      40,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      SyncWaitFtraceEvent,
-      FtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_SyncWait kSyncWait() { return {}; }
-  template <typename T = SyncWaitFtraceEvent> T* set_sync_wait() {
-    return BeginNestedMessage<T>(40);
-  }
-
-
-  using FieldMetadata_Ext4DaWriteBegin =
-    ::protozero::proto_utils::FieldMetadata<
-      41,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      Ext4DaWriteBeginFtraceEvent,
-      FtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Ext4DaWriteBegin kExt4DaWriteBegin() { return {}; }
-  template <typename T = Ext4DaWriteBeginFtraceEvent> T* set_ext4_da_write_begin() {
-    return BeginNestedMessage<T>(41);
-  }
-
-
-  using FieldMetadata_Ext4DaWriteEnd =
-    ::protozero::proto_utils::FieldMetadata<
-      42,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      Ext4DaWriteEndFtraceEvent,
-      FtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Ext4DaWriteEnd kExt4DaWriteEnd() { return {}; }
-  template <typename T = Ext4DaWriteEndFtraceEvent> T* set_ext4_da_write_end() {
-    return BeginNestedMessage<T>(42);
-  }
-
-
-  using FieldMetadata_Ext4SyncFileEnter =
-    ::protozero::proto_utils::FieldMetadata<
-      43,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      Ext4SyncFileEnterFtraceEvent,
-      FtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Ext4SyncFileEnter kExt4SyncFileEnter() { return {}; }
-  template <typename T = Ext4SyncFileEnterFtraceEvent> T* set_ext4_sync_file_enter() {
-    return BeginNestedMessage<T>(43);
-  }
-
-
-  using FieldMetadata_Ext4SyncFileExit =
-    ::protozero::proto_utils::FieldMetadata<
-      44,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      Ext4SyncFileExitFtraceEvent,
-      FtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Ext4SyncFileExit kExt4SyncFileExit() { return {}; }
-  template <typename T = Ext4SyncFileExitFtraceEvent> T* set_ext4_sync_file_exit() {
-    return BeginNestedMessage<T>(44);
-  }
-
-
-  using FieldMetadata_BlockRqIssue =
-    ::protozero::proto_utils::FieldMetadata<
-      45,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      BlockRqIssueFtraceEvent,
-      FtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_BlockRqIssue kBlockRqIssue() { return {}; }
-  template <typename T = BlockRqIssueFtraceEvent> T* set_block_rq_issue() {
-    return BeginNestedMessage<T>(45);
-  }
-
-
-  using FieldMetadata_MmVmscanDirectReclaimBegin =
-    ::protozero::proto_utils::FieldMetadata<
-      46,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      MmVmscanDirectReclaimBeginFtraceEvent,
-      FtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_MmVmscanDirectReclaimBegin kMmVmscanDirectReclaimBegin() { return {}; }
-  template <typename T = MmVmscanDirectReclaimBeginFtraceEvent> T* set_mm_vmscan_direct_reclaim_begin() {
-    return BeginNestedMessage<T>(46);
-  }
-
-
-  using FieldMetadata_MmVmscanDirectReclaimEnd =
-    ::protozero::proto_utils::FieldMetadata<
-      47,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      MmVmscanDirectReclaimEndFtraceEvent,
-      FtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_MmVmscanDirectReclaimEnd kMmVmscanDirectReclaimEnd() { return {}; }
-  template <typename T = MmVmscanDirectReclaimEndFtraceEvent> T* set_mm_vmscan_direct_reclaim_end() {
-    return BeginNestedMessage<T>(47);
-  }
-
-
-  using FieldMetadata_MmVmscanKswapdWake =
-    ::protozero::proto_utils::FieldMetadata<
-      48,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      MmVmscanKswapdWakeFtraceEvent,
-      FtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_MmVmscanKswapdWake kMmVmscanKswapdWake() { return {}; }
-  template <typename T = MmVmscanKswapdWakeFtraceEvent> T* set_mm_vmscan_kswapd_wake() {
-    return BeginNestedMessage<T>(48);
-  }
-
-
-  using FieldMetadata_MmVmscanKswapdSleep =
-    ::protozero::proto_utils::FieldMetadata<
-      49,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      MmVmscanKswapdSleepFtraceEvent,
-      FtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_MmVmscanKswapdSleep kMmVmscanKswapdSleep() { return {}; }
-  template <typename T = MmVmscanKswapdSleepFtraceEvent> T* set_mm_vmscan_kswapd_sleep() {
-    return BeginNestedMessage<T>(49);
-  }
-
-
-  using FieldMetadata_BinderTransaction =
-    ::protozero::proto_utils::FieldMetadata<
-      50,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      BinderTransactionFtraceEvent,
-      FtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_BinderTransaction kBinderTransaction() { return {}; }
-  template <typename T = BinderTransactionFtraceEvent> T* set_binder_transaction() {
-    return BeginNestedMessage<T>(50);
-  }
-
-
-  using FieldMetadata_BinderTransactionReceived =
-    ::protozero::proto_utils::FieldMetadata<
-      51,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      BinderTransactionReceivedFtraceEvent,
-      FtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_BinderTransactionReceived kBinderTransactionReceived() { return {}; }
-  template <typename T = BinderTransactionReceivedFtraceEvent> T* set_binder_transaction_received() {
-    return BeginNestedMessage<T>(51);
-  }
-
-
-  using FieldMetadata_BinderSetPriority =
-    ::protozero::proto_utils::FieldMetadata<
-      52,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      BinderSetPriorityFtraceEvent,
-      FtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_BinderSetPriority kBinderSetPriority() { return {}; }
-  template <typename T = BinderSetPriorityFtraceEvent> T* set_binder_set_priority() {
-    return BeginNestedMessage<T>(52);
-  }
-
-
-  using FieldMetadata_BinderLock =
-    ::protozero::proto_utils::FieldMetadata<
-      53,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      BinderLockFtraceEvent,
-      FtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_BinderLock kBinderLock() { return {}; }
-  template <typename T = BinderLockFtraceEvent> T* set_binder_lock() {
-    return BeginNestedMessage<T>(53);
-  }
-
-
-  using FieldMetadata_BinderLocked =
-    ::protozero::proto_utils::FieldMetadata<
-      54,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      BinderLockedFtraceEvent,
-      FtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_BinderLocked kBinderLocked() { return {}; }
-  template <typename T = BinderLockedFtraceEvent> T* set_binder_locked() {
-    return BeginNestedMessage<T>(54);
-  }
-
-
-  using FieldMetadata_BinderUnlock =
-    ::protozero::proto_utils::FieldMetadata<
-      55,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      BinderUnlockFtraceEvent,
-      FtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_BinderUnlock kBinderUnlock() { return {}; }
-  template <typename T = BinderUnlockFtraceEvent> T* set_binder_unlock() {
-    return BeginNestedMessage<T>(55);
-  }
-
-
-  using FieldMetadata_WorkqueueActivateWork =
-    ::protozero::proto_utils::FieldMetadata<
-      56,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      WorkqueueActivateWorkFtraceEvent,
-      FtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_WorkqueueActivateWork kWorkqueueActivateWork() { return {}; }
-  template <typename T = WorkqueueActivateWorkFtraceEvent> T* set_workqueue_activate_work() {
-    return BeginNestedMessage<T>(56);
-  }
-
-
-  using FieldMetadata_WorkqueueExecuteEnd =
-    ::protozero::proto_utils::FieldMetadata<
-      57,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      WorkqueueExecuteEndFtraceEvent,
-      FtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_WorkqueueExecuteEnd kWorkqueueExecuteEnd() { return {}; }
-  template <typename T = WorkqueueExecuteEndFtraceEvent> T* set_workqueue_execute_end() {
-    return BeginNestedMessage<T>(57);
-  }
-
-
-  using FieldMetadata_WorkqueueExecuteStart =
-    ::protozero::proto_utils::FieldMetadata<
-      58,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      WorkqueueExecuteStartFtraceEvent,
-      FtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_WorkqueueExecuteStart kWorkqueueExecuteStart() { return {}; }
-  template <typename T = WorkqueueExecuteStartFtraceEvent> T* set_workqueue_execute_start() {
-    return BeginNestedMessage<T>(58);
-  }
-
-
-  using FieldMetadata_WorkqueueQueueWork =
-    ::protozero::proto_utils::FieldMetadata<
-      59,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      WorkqueueQueueWorkFtraceEvent,
-      FtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_WorkqueueQueueWork kWorkqueueQueueWork() { return {}; }
-  template <typename T = WorkqueueQueueWorkFtraceEvent> T* set_workqueue_queue_work() {
-    return BeginNestedMessage<T>(59);
-  }
-
-
-  using FieldMetadata_RegulatorDisable =
-    ::protozero::proto_utils::FieldMetadata<
-      60,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      RegulatorDisableFtraceEvent,
-      FtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_RegulatorDisable kRegulatorDisable() { return {}; }
-  template <typename T = RegulatorDisableFtraceEvent> T* set_regulator_disable() {
-    return BeginNestedMessage<T>(60);
-  }
-
-
-  using FieldMetadata_RegulatorDisableComplete =
-    ::protozero::proto_utils::FieldMetadata<
-      61,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      RegulatorDisableCompleteFtraceEvent,
-      FtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_RegulatorDisableComplete kRegulatorDisableComplete() { return {}; }
-  template <typename T = RegulatorDisableCompleteFtraceEvent> T* set_regulator_disable_complete() {
-    return BeginNestedMessage<T>(61);
-  }
-
-
-  using FieldMetadata_RegulatorEnable =
-    ::protozero::proto_utils::FieldMetadata<
-      62,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      RegulatorEnableFtraceEvent,
-      FtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_RegulatorEnable kRegulatorEnable() { return {}; }
-  template <typename T = RegulatorEnableFtraceEvent> T* set_regulator_enable() {
-    return BeginNestedMessage<T>(62);
-  }
-
-
-  using FieldMetadata_RegulatorEnableComplete =
-    ::protozero::proto_utils::FieldMetadata<
-      63,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      RegulatorEnableCompleteFtraceEvent,
-      FtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_RegulatorEnableComplete kRegulatorEnableComplete() { return {}; }
-  template <typename T = RegulatorEnableCompleteFtraceEvent> T* set_regulator_enable_complete() {
-    return BeginNestedMessage<T>(63);
-  }
-
-
-  using FieldMetadata_RegulatorEnableDelay =
-    ::protozero::proto_utils::FieldMetadata<
-      64,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      RegulatorEnableDelayFtraceEvent,
-      FtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_RegulatorEnableDelay kRegulatorEnableDelay() { return {}; }
-  template <typename T = RegulatorEnableDelayFtraceEvent> T* set_regulator_enable_delay() {
-    return BeginNestedMessage<T>(64);
-  }
-
-
-  using FieldMetadata_RegulatorSetVoltage =
-    ::protozero::proto_utils::FieldMetadata<
-      65,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      RegulatorSetVoltageFtraceEvent,
-      FtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_RegulatorSetVoltage kRegulatorSetVoltage() { return {}; }
-  template <typename T = RegulatorSetVoltageFtraceEvent> T* set_regulator_set_voltage() {
-    return BeginNestedMessage<T>(65);
-  }
-
-
-  using FieldMetadata_RegulatorSetVoltageComplete =
-    ::protozero::proto_utils::FieldMetadata<
-      66,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      RegulatorSetVoltageCompleteFtraceEvent,
-      FtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_RegulatorSetVoltageComplete kRegulatorSetVoltageComplete() { return {}; }
-  template <typename T = RegulatorSetVoltageCompleteFtraceEvent> T* set_regulator_set_voltage_complete() {
-    return BeginNestedMessage<T>(66);
-  }
-
-
-  using FieldMetadata_CgroupAttachTask =
-    ::protozero::proto_utils::FieldMetadata<
-      67,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      CgroupAttachTaskFtraceEvent,
-      FtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_CgroupAttachTask kCgroupAttachTask() { return {}; }
-  template <typename T = CgroupAttachTaskFtraceEvent> T* set_cgroup_attach_task() {
-    return BeginNestedMessage<T>(67);
-  }
-
-
-  using FieldMetadata_CgroupMkdir =
-    ::protozero::proto_utils::FieldMetadata<
-      68,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      CgroupMkdirFtraceEvent,
-      FtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_CgroupMkdir kCgroupMkdir() { return {}; }
-  template <typename T = CgroupMkdirFtraceEvent> T* set_cgroup_mkdir() {
-    return BeginNestedMessage<T>(68);
-  }
-
-
-  using FieldMetadata_CgroupRemount =
-    ::protozero::proto_utils::FieldMetadata<
-      69,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      CgroupRemountFtraceEvent,
-      FtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_CgroupRemount kCgroupRemount() { return {}; }
-  template <typename T = CgroupRemountFtraceEvent> T* set_cgroup_remount() {
-    return BeginNestedMessage<T>(69);
-  }
-
-
-  using FieldMetadata_CgroupRmdir =
-    ::protozero::proto_utils::FieldMetadata<
-      70,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      CgroupRmdirFtraceEvent,
-      FtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_CgroupRmdir kCgroupRmdir() { return {}; }
-  template <typename T = CgroupRmdirFtraceEvent> T* set_cgroup_rmdir() {
-    return BeginNestedMessage<T>(70);
-  }
-
-
-  using FieldMetadata_CgroupTransferTasks =
-    ::protozero::proto_utils::FieldMetadata<
-      71,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      CgroupTransferTasksFtraceEvent,
-      FtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_CgroupTransferTasks kCgroupTransferTasks() { return {}; }
-  template <typename T = CgroupTransferTasksFtraceEvent> T* set_cgroup_transfer_tasks() {
-    return BeginNestedMessage<T>(71);
-  }
-
-
-  using FieldMetadata_CgroupDestroyRoot =
-    ::protozero::proto_utils::FieldMetadata<
-      72,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      CgroupDestroyRootFtraceEvent,
-      FtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_CgroupDestroyRoot kCgroupDestroyRoot() { return {}; }
-  template <typename T = CgroupDestroyRootFtraceEvent> T* set_cgroup_destroy_root() {
-    return BeginNestedMessage<T>(72);
-  }
-
-
-  using FieldMetadata_CgroupRelease =
-    ::protozero::proto_utils::FieldMetadata<
-      73,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      CgroupReleaseFtraceEvent,
-      FtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_CgroupRelease kCgroupRelease() { return {}; }
-  template <typename T = CgroupReleaseFtraceEvent> T* set_cgroup_release() {
-    return BeginNestedMessage<T>(73);
-  }
-
-
-  using FieldMetadata_CgroupRename =
-    ::protozero::proto_utils::FieldMetadata<
-      74,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      CgroupRenameFtraceEvent,
-      FtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_CgroupRename kCgroupRename() { return {}; }
-  template <typename T = CgroupRenameFtraceEvent> T* set_cgroup_rename() {
-    return BeginNestedMessage<T>(74);
-  }
-
-
-  using FieldMetadata_CgroupSetupRoot =
-    ::protozero::proto_utils::FieldMetadata<
-      75,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      CgroupSetupRootFtraceEvent,
-      FtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_CgroupSetupRoot kCgroupSetupRoot() { return {}; }
-  template <typename T = CgroupSetupRootFtraceEvent> T* set_cgroup_setup_root() {
-    return BeginNestedMessage<T>(75);
-  }
-
-
-  using FieldMetadata_MdpCmdKickoff =
-    ::protozero::proto_utils::FieldMetadata<
-      76,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      MdpCmdKickoffFtraceEvent,
-      FtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_MdpCmdKickoff kMdpCmdKickoff() { return {}; }
-  template <typename T = MdpCmdKickoffFtraceEvent> T* set_mdp_cmd_kickoff() {
-    return BeginNestedMessage<T>(76);
-  }
-
-
-  using FieldMetadata_MdpCommit =
-    ::protozero::proto_utils::FieldMetadata<
-      77,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      MdpCommitFtraceEvent,
-      FtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_MdpCommit kMdpCommit() { return {}; }
-  template <typename T = MdpCommitFtraceEvent> T* set_mdp_commit() {
-    return BeginNestedMessage<T>(77);
-  }
-
-
-  using FieldMetadata_MdpPerfSetOt =
-    ::protozero::proto_utils::FieldMetadata<
-      78,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      MdpPerfSetOtFtraceEvent,
-      FtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_MdpPerfSetOt kMdpPerfSetOt() { return {}; }
-  template <typename T = MdpPerfSetOtFtraceEvent> T* set_mdp_perf_set_ot() {
-    return BeginNestedMessage<T>(78);
-  }
-
-
-  using FieldMetadata_MdpSsppChange =
-    ::protozero::proto_utils::FieldMetadata<
-      79,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      MdpSsppChangeFtraceEvent,
-      FtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_MdpSsppChange kMdpSsppChange() { return {}; }
-  template <typename T = MdpSsppChangeFtraceEvent> T* set_mdp_sspp_change() {
-    return BeginNestedMessage<T>(79);
-  }
-
-
-  using FieldMetadata_TracingMarkWrite =
-    ::protozero::proto_utils::FieldMetadata<
-      80,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      TracingMarkWriteFtraceEvent,
-      FtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_TracingMarkWrite kTracingMarkWrite() { return {}; }
-  template <typename T = TracingMarkWriteFtraceEvent> T* set_tracing_mark_write() {
-    return BeginNestedMessage<T>(80);
-  }
-
-
-  using FieldMetadata_MdpCmdPingpongDone =
-    ::protozero::proto_utils::FieldMetadata<
-      81,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      MdpCmdPingpongDoneFtraceEvent,
-      FtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_MdpCmdPingpongDone kMdpCmdPingpongDone() { return {}; }
-  template <typename T = MdpCmdPingpongDoneFtraceEvent> T* set_mdp_cmd_pingpong_done() {
-    return BeginNestedMessage<T>(81);
-  }
-
-
-  using FieldMetadata_MdpCompareBw =
-    ::protozero::proto_utils::FieldMetadata<
-      82,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      MdpCompareBwFtraceEvent,
-      FtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_MdpCompareBw kMdpCompareBw() { return {}; }
-  template <typename T = MdpCompareBwFtraceEvent> T* set_mdp_compare_bw() {
-    return BeginNestedMessage<T>(82);
-  }
-
-
-  using FieldMetadata_MdpPerfSetPanicLuts =
-    ::protozero::proto_utils::FieldMetadata<
-      83,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      MdpPerfSetPanicLutsFtraceEvent,
-      FtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_MdpPerfSetPanicLuts kMdpPerfSetPanicLuts() { return {}; }
-  template <typename T = MdpPerfSetPanicLutsFtraceEvent> T* set_mdp_perf_set_panic_luts() {
-    return BeginNestedMessage<T>(83);
-  }
-
-
-  using FieldMetadata_MdpSsppSet =
-    ::protozero::proto_utils::FieldMetadata<
-      84,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      MdpSsppSetFtraceEvent,
-      FtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_MdpSsppSet kMdpSsppSet() { return {}; }
-  template <typename T = MdpSsppSetFtraceEvent> T* set_mdp_sspp_set() {
-    return BeginNestedMessage<T>(84);
-  }
-
-
-  using FieldMetadata_MdpCmdReadptrDone =
-    ::protozero::proto_utils::FieldMetadata<
-      85,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      MdpCmdReadptrDoneFtraceEvent,
-      FtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_MdpCmdReadptrDone kMdpCmdReadptrDone() { return {}; }
-  template <typename T = MdpCmdReadptrDoneFtraceEvent> T* set_mdp_cmd_readptr_done() {
-    return BeginNestedMessage<T>(85);
-  }
-
-
-  using FieldMetadata_MdpMisrCrc =
-    ::protozero::proto_utils::FieldMetadata<
-      86,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      MdpMisrCrcFtraceEvent,
-      FtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_MdpMisrCrc kMdpMisrCrc() { return {}; }
-  template <typename T = MdpMisrCrcFtraceEvent> T* set_mdp_misr_crc() {
-    return BeginNestedMessage<T>(86);
-  }
-
-
-  using FieldMetadata_MdpPerfSetQosLuts =
-    ::protozero::proto_utils::FieldMetadata<
-      87,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      MdpPerfSetQosLutsFtraceEvent,
-      FtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_MdpPerfSetQosLuts kMdpPerfSetQosLuts() { return {}; }
-  template <typename T = MdpPerfSetQosLutsFtraceEvent> T* set_mdp_perf_set_qos_luts() {
-    return BeginNestedMessage<T>(87);
-  }
-
-
-  using FieldMetadata_MdpTraceCounter =
-    ::protozero::proto_utils::FieldMetadata<
-      88,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      MdpTraceCounterFtraceEvent,
-      FtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_MdpTraceCounter kMdpTraceCounter() { return {}; }
-  template <typename T = MdpTraceCounterFtraceEvent> T* set_mdp_trace_counter() {
-    return BeginNestedMessage<T>(88);
-  }
-
-
-  using FieldMetadata_MdpCmdReleaseBw =
-    ::protozero::proto_utils::FieldMetadata<
-      89,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      MdpCmdReleaseBwFtraceEvent,
-      FtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_MdpCmdReleaseBw kMdpCmdReleaseBw() { return {}; }
-  template <typename T = MdpCmdReleaseBwFtraceEvent> T* set_mdp_cmd_release_bw() {
-    return BeginNestedMessage<T>(89);
-  }
-
-
-  using FieldMetadata_MdpMixerUpdate =
-    ::protozero::proto_utils::FieldMetadata<
-      90,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      MdpMixerUpdateFtraceEvent,
-      FtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_MdpMixerUpdate kMdpMixerUpdate() { return {}; }
-  template <typename T = MdpMixerUpdateFtraceEvent> T* set_mdp_mixer_update() {
-    return BeginNestedMessage<T>(90);
-  }
-
-
-  using FieldMetadata_MdpPerfSetWmLevels =
-    ::protozero::proto_utils::FieldMetadata<
-      91,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      MdpPerfSetWmLevelsFtraceEvent,
-      FtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_MdpPerfSetWmLevels kMdpPerfSetWmLevels() { return {}; }
-  template <typename T = MdpPerfSetWmLevelsFtraceEvent> T* set_mdp_perf_set_wm_levels() {
-    return BeginNestedMessage<T>(91);
-  }
-
-
-  using FieldMetadata_MdpVideoUnderrunDone =
-    ::protozero::proto_utils::FieldMetadata<
-      92,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      MdpVideoUnderrunDoneFtraceEvent,
-      FtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_MdpVideoUnderrunDone kMdpVideoUnderrunDone() { return {}; }
-  template <typename T = MdpVideoUnderrunDoneFtraceEvent> T* set_mdp_video_underrun_done() {
-    return BeginNestedMessage<T>(92);
-  }
-
-
-  using FieldMetadata_MdpCmdWaitPingpong =
-    ::protozero::proto_utils::FieldMetadata<
-      93,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      MdpCmdWaitPingpongFtraceEvent,
-      FtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_MdpCmdWaitPingpong kMdpCmdWaitPingpong() { return {}; }
-  template <typename T = MdpCmdWaitPingpongFtraceEvent> T* set_mdp_cmd_wait_pingpong() {
-    return BeginNestedMessage<T>(93);
-  }
-
-
-  using FieldMetadata_MdpPerfPrefillCalc =
-    ::protozero::proto_utils::FieldMetadata<
-      94,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      MdpPerfPrefillCalcFtraceEvent,
-      FtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_MdpPerfPrefillCalc kMdpPerfPrefillCalc() { return {}; }
-  template <typename T = MdpPerfPrefillCalcFtraceEvent> T* set_mdp_perf_prefill_calc() {
-    return BeginNestedMessage<T>(94);
-  }
-
-
-  using FieldMetadata_MdpPerfUpdateBus =
-    ::protozero::proto_utils::FieldMetadata<
-      95,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      MdpPerfUpdateBusFtraceEvent,
-      FtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_MdpPerfUpdateBus kMdpPerfUpdateBus() { return {}; }
-  template <typename T = MdpPerfUpdateBusFtraceEvent> T* set_mdp_perf_update_bus() {
-    return BeginNestedMessage<T>(95);
-  }
-
-
-  using FieldMetadata_RotatorBwAoAsContext =
-    ::protozero::proto_utils::FieldMetadata<
-      96,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      RotatorBwAoAsContextFtraceEvent,
-      FtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_RotatorBwAoAsContext kRotatorBwAoAsContext() { return {}; }
-  template <typename T = RotatorBwAoAsContextFtraceEvent> T* set_rotator_bw_ao_as_context() {
-    return BeginNestedMessage<T>(96);
-  }
-
-
-  using FieldMetadata_MmFilemapAddToPageCache =
-    ::protozero::proto_utils::FieldMetadata<
-      97,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      MmFilemapAddToPageCacheFtraceEvent,
-      FtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_MmFilemapAddToPageCache kMmFilemapAddToPageCache() { return {}; }
-  template <typename T = MmFilemapAddToPageCacheFtraceEvent> T* set_mm_filemap_add_to_page_cache() {
-    return BeginNestedMessage<T>(97);
-  }
-
-
-  using FieldMetadata_MmFilemapDeleteFromPageCache =
-    ::protozero::proto_utils::FieldMetadata<
-      98,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      MmFilemapDeleteFromPageCacheFtraceEvent,
-      FtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_MmFilemapDeleteFromPageCache kMmFilemapDeleteFromPageCache() { return {}; }
-  template <typename T = MmFilemapDeleteFromPageCacheFtraceEvent> T* set_mm_filemap_delete_from_page_cache() {
-    return BeginNestedMessage<T>(98);
-  }
-
-
-  using FieldMetadata_MmCompactionBegin =
-    ::protozero::proto_utils::FieldMetadata<
-      99,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      MmCompactionBeginFtraceEvent,
-      FtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_MmCompactionBegin kMmCompactionBegin() { return {}; }
-  template <typename T = MmCompactionBeginFtraceEvent> T* set_mm_compaction_begin() {
-    return BeginNestedMessage<T>(99);
-  }
-
-
-  using FieldMetadata_MmCompactionDeferCompaction =
-    ::protozero::proto_utils::FieldMetadata<
-      100,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      MmCompactionDeferCompactionFtraceEvent,
-      FtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_MmCompactionDeferCompaction kMmCompactionDeferCompaction() { return {}; }
-  template <typename T = MmCompactionDeferCompactionFtraceEvent> T* set_mm_compaction_defer_compaction() {
-    return BeginNestedMessage<T>(100);
-  }
-
-
-  using FieldMetadata_MmCompactionDeferred =
-    ::protozero::proto_utils::FieldMetadata<
-      101,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      MmCompactionDeferredFtraceEvent,
-      FtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_MmCompactionDeferred kMmCompactionDeferred() { return {}; }
-  template <typename T = MmCompactionDeferredFtraceEvent> T* set_mm_compaction_deferred() {
-    return BeginNestedMessage<T>(101);
-  }
-
-
-  using FieldMetadata_MmCompactionDeferReset =
-    ::protozero::proto_utils::FieldMetadata<
-      102,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      MmCompactionDeferResetFtraceEvent,
-      FtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_MmCompactionDeferReset kMmCompactionDeferReset() { return {}; }
-  template <typename T = MmCompactionDeferResetFtraceEvent> T* set_mm_compaction_defer_reset() {
-    return BeginNestedMessage<T>(102);
-  }
-
-
-  using FieldMetadata_MmCompactionEnd =
-    ::protozero::proto_utils::FieldMetadata<
-      103,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      MmCompactionEndFtraceEvent,
-      FtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_MmCompactionEnd kMmCompactionEnd() { return {}; }
-  template <typename T = MmCompactionEndFtraceEvent> T* set_mm_compaction_end() {
-    return BeginNestedMessage<T>(103);
-  }
-
-
-  using FieldMetadata_MmCompactionFinished =
-    ::protozero::proto_utils::FieldMetadata<
-      104,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      MmCompactionFinishedFtraceEvent,
-      FtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_MmCompactionFinished kMmCompactionFinished() { return {}; }
-  template <typename T = MmCompactionFinishedFtraceEvent> T* set_mm_compaction_finished() {
-    return BeginNestedMessage<T>(104);
-  }
-
-
-  using FieldMetadata_MmCompactionIsolateFreepages =
-    ::protozero::proto_utils::FieldMetadata<
-      105,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      MmCompactionIsolateFreepagesFtraceEvent,
-      FtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_MmCompactionIsolateFreepages kMmCompactionIsolateFreepages() { return {}; }
-  template <typename T = MmCompactionIsolateFreepagesFtraceEvent> T* set_mm_compaction_isolate_freepages() {
-    return BeginNestedMessage<T>(105);
-  }
-
-
-  using FieldMetadata_MmCompactionIsolateMigratepages =
-    ::protozero::proto_utils::FieldMetadata<
-      106,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      MmCompactionIsolateMigratepagesFtraceEvent,
-      FtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_MmCompactionIsolateMigratepages kMmCompactionIsolateMigratepages() { return {}; }
-  template <typename T = MmCompactionIsolateMigratepagesFtraceEvent> T* set_mm_compaction_isolate_migratepages() {
-    return BeginNestedMessage<T>(106);
-  }
-
-
-  using FieldMetadata_MmCompactionKcompactdSleep =
-    ::protozero::proto_utils::FieldMetadata<
-      107,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      MmCompactionKcompactdSleepFtraceEvent,
-      FtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_MmCompactionKcompactdSleep kMmCompactionKcompactdSleep() { return {}; }
-  template <typename T = MmCompactionKcompactdSleepFtraceEvent> T* set_mm_compaction_kcompactd_sleep() {
-    return BeginNestedMessage<T>(107);
-  }
-
-
-  using FieldMetadata_MmCompactionKcompactdWake =
-    ::protozero::proto_utils::FieldMetadata<
-      108,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      MmCompactionKcompactdWakeFtraceEvent,
-      FtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_MmCompactionKcompactdWake kMmCompactionKcompactdWake() { return {}; }
-  template <typename T = MmCompactionKcompactdWakeFtraceEvent> T* set_mm_compaction_kcompactd_wake() {
-    return BeginNestedMessage<T>(108);
-  }
-
-
-  using FieldMetadata_MmCompactionMigratepages =
-    ::protozero::proto_utils::FieldMetadata<
-      109,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      MmCompactionMigratepagesFtraceEvent,
-      FtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_MmCompactionMigratepages kMmCompactionMigratepages() { return {}; }
-  template <typename T = MmCompactionMigratepagesFtraceEvent> T* set_mm_compaction_migratepages() {
-    return BeginNestedMessage<T>(109);
-  }
-
-
-  using FieldMetadata_MmCompactionSuitable =
-    ::protozero::proto_utils::FieldMetadata<
-      110,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      MmCompactionSuitableFtraceEvent,
-      FtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_MmCompactionSuitable kMmCompactionSuitable() { return {}; }
-  template <typename T = MmCompactionSuitableFtraceEvent> T* set_mm_compaction_suitable() {
-    return BeginNestedMessage<T>(110);
-  }
-
-
-  using FieldMetadata_MmCompactionTryToCompactPages =
-    ::protozero::proto_utils::FieldMetadata<
-      111,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      MmCompactionTryToCompactPagesFtraceEvent,
-      FtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_MmCompactionTryToCompactPages kMmCompactionTryToCompactPages() { return {}; }
-  template <typename T = MmCompactionTryToCompactPagesFtraceEvent> T* set_mm_compaction_try_to_compact_pages() {
-    return BeginNestedMessage<T>(111);
-  }
-
-
-  using FieldMetadata_MmCompactionWakeupKcompactd =
-    ::protozero::proto_utils::FieldMetadata<
-      112,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      MmCompactionWakeupKcompactdFtraceEvent,
-      FtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_MmCompactionWakeupKcompactd kMmCompactionWakeupKcompactd() { return {}; }
-  template <typename T = MmCompactionWakeupKcompactdFtraceEvent> T* set_mm_compaction_wakeup_kcompactd() {
-    return BeginNestedMessage<T>(112);
-  }
-
-
-  using FieldMetadata_SuspendResume =
-    ::protozero::proto_utils::FieldMetadata<
-      113,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      SuspendResumeFtraceEvent,
-      FtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_SuspendResume kSuspendResume() { return {}; }
-  template <typename T = SuspendResumeFtraceEvent> T* set_suspend_resume() {
-    return BeginNestedMessage<T>(113);
-  }
-
-
-  using FieldMetadata_SchedWakeupNew =
-    ::protozero::proto_utils::FieldMetadata<
-      114,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      SchedWakeupNewFtraceEvent,
-      FtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_SchedWakeupNew kSchedWakeupNew() { return {}; }
-  template <typename T = SchedWakeupNewFtraceEvent> T* set_sched_wakeup_new() {
-    return BeginNestedMessage<T>(114);
-  }
-
-
-  using FieldMetadata_BlockBioBackmerge =
-    ::protozero::proto_utils::FieldMetadata<
-      115,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      BlockBioBackmergeFtraceEvent,
-      FtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_BlockBioBackmerge kBlockBioBackmerge() { return {}; }
-  template <typename T = BlockBioBackmergeFtraceEvent> T* set_block_bio_backmerge() {
-    return BeginNestedMessage<T>(115);
-  }
-
-
-  using FieldMetadata_BlockBioBounce =
-    ::protozero::proto_utils::FieldMetadata<
-      116,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      BlockBioBounceFtraceEvent,
-      FtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_BlockBioBounce kBlockBioBounce() { return {}; }
-  template <typename T = BlockBioBounceFtraceEvent> T* set_block_bio_bounce() {
-    return BeginNestedMessage<T>(116);
-  }
-
-
-  using FieldMetadata_BlockBioComplete =
-    ::protozero::proto_utils::FieldMetadata<
-      117,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      BlockBioCompleteFtraceEvent,
-      FtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_BlockBioComplete kBlockBioComplete() { return {}; }
-  template <typename T = BlockBioCompleteFtraceEvent> T* set_block_bio_complete() {
-    return BeginNestedMessage<T>(117);
-  }
-
-
-  using FieldMetadata_BlockBioFrontmerge =
-    ::protozero::proto_utils::FieldMetadata<
-      118,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      BlockBioFrontmergeFtraceEvent,
-      FtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_BlockBioFrontmerge kBlockBioFrontmerge() { return {}; }
-  template <typename T = BlockBioFrontmergeFtraceEvent> T* set_block_bio_frontmerge() {
-    return BeginNestedMessage<T>(118);
-  }
-
-
-  using FieldMetadata_BlockBioQueue =
-    ::protozero::proto_utils::FieldMetadata<
-      119,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      BlockBioQueueFtraceEvent,
-      FtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_BlockBioQueue kBlockBioQueue() { return {}; }
-  template <typename T = BlockBioQueueFtraceEvent> T* set_block_bio_queue() {
-    return BeginNestedMessage<T>(119);
-  }
-
-
-  using FieldMetadata_BlockBioRemap =
-    ::protozero::proto_utils::FieldMetadata<
-      120,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      BlockBioRemapFtraceEvent,
-      FtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_BlockBioRemap kBlockBioRemap() { return {}; }
-  template <typename T = BlockBioRemapFtraceEvent> T* set_block_bio_remap() {
-    return BeginNestedMessage<T>(120);
-  }
-
-
-  using FieldMetadata_BlockDirtyBuffer =
-    ::protozero::proto_utils::FieldMetadata<
-      121,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      BlockDirtyBufferFtraceEvent,
-      FtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_BlockDirtyBuffer kBlockDirtyBuffer() { return {}; }
-  template <typename T = BlockDirtyBufferFtraceEvent> T* set_block_dirty_buffer() {
-    return BeginNestedMessage<T>(121);
-  }
-
-
-  using FieldMetadata_BlockGetrq =
-    ::protozero::proto_utils::FieldMetadata<
-      122,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      BlockGetrqFtraceEvent,
-      FtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_BlockGetrq kBlockGetrq() { return {}; }
-  template <typename T = BlockGetrqFtraceEvent> T* set_block_getrq() {
-    return BeginNestedMessage<T>(122);
-  }
-
-
-  using FieldMetadata_BlockPlug =
-    ::protozero::proto_utils::FieldMetadata<
-      123,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      BlockPlugFtraceEvent,
-      FtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_BlockPlug kBlockPlug() { return {}; }
-  template <typename T = BlockPlugFtraceEvent> T* set_block_plug() {
-    return BeginNestedMessage<T>(123);
-  }
-
-
-  using FieldMetadata_BlockRqAbort =
-    ::protozero::proto_utils::FieldMetadata<
-      124,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      BlockRqAbortFtraceEvent,
-      FtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_BlockRqAbort kBlockRqAbort() { return {}; }
-  template <typename T = BlockRqAbortFtraceEvent> T* set_block_rq_abort() {
-    return BeginNestedMessage<T>(124);
-  }
-
-
-  using FieldMetadata_BlockRqComplete =
-    ::protozero::proto_utils::FieldMetadata<
-      125,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      BlockRqCompleteFtraceEvent,
-      FtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_BlockRqComplete kBlockRqComplete() { return {}; }
-  template <typename T = BlockRqCompleteFtraceEvent> T* set_block_rq_complete() {
-    return BeginNestedMessage<T>(125);
-  }
-
-
-  using FieldMetadata_BlockRqInsert =
-    ::protozero::proto_utils::FieldMetadata<
-      126,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      BlockRqInsertFtraceEvent,
-      FtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_BlockRqInsert kBlockRqInsert() { return {}; }
-  template <typename T = BlockRqInsertFtraceEvent> T* set_block_rq_insert() {
-    return BeginNestedMessage<T>(126);
-  }
-
-
-  using FieldMetadata_BlockRqRemap =
-    ::protozero::proto_utils::FieldMetadata<
-      128,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      BlockRqRemapFtraceEvent,
-      FtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_BlockRqRemap kBlockRqRemap() { return {}; }
-  template <typename T = BlockRqRemapFtraceEvent> T* set_block_rq_remap() {
-    return BeginNestedMessage<T>(128);
-  }
-
-
-  using FieldMetadata_BlockRqRequeue =
-    ::protozero::proto_utils::FieldMetadata<
-      129,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      BlockRqRequeueFtraceEvent,
-      FtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_BlockRqRequeue kBlockRqRequeue() { return {}; }
-  template <typename T = BlockRqRequeueFtraceEvent> T* set_block_rq_requeue() {
-    return BeginNestedMessage<T>(129);
-  }
-
-
-  using FieldMetadata_BlockSleeprq =
-    ::protozero::proto_utils::FieldMetadata<
-      130,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      BlockSleeprqFtraceEvent,
-      FtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_BlockSleeprq kBlockSleeprq() { return {}; }
-  template <typename T = BlockSleeprqFtraceEvent> T* set_block_sleeprq() {
-    return BeginNestedMessage<T>(130);
-  }
-
-
-  using FieldMetadata_BlockSplit =
-    ::protozero::proto_utils::FieldMetadata<
-      131,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      BlockSplitFtraceEvent,
-      FtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_BlockSplit kBlockSplit() { return {}; }
-  template <typename T = BlockSplitFtraceEvent> T* set_block_split() {
-    return BeginNestedMessage<T>(131);
-  }
-
-
-  using FieldMetadata_BlockTouchBuffer =
-    ::protozero::proto_utils::FieldMetadata<
-      132,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      BlockTouchBufferFtraceEvent,
-      FtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_BlockTouchBuffer kBlockTouchBuffer() { return {}; }
-  template <typename T = BlockTouchBufferFtraceEvent> T* set_block_touch_buffer() {
-    return BeginNestedMessage<T>(132);
-  }
-
-
-  using FieldMetadata_BlockUnplug =
-    ::protozero::proto_utils::FieldMetadata<
-      133,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      BlockUnplugFtraceEvent,
-      FtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_BlockUnplug kBlockUnplug() { return {}; }
-  template <typename T = BlockUnplugFtraceEvent> T* set_block_unplug() {
-    return BeginNestedMessage<T>(133);
-  }
-
-
-  using FieldMetadata_Ext4AllocDaBlocks =
-    ::protozero::proto_utils::FieldMetadata<
-      134,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      Ext4AllocDaBlocksFtraceEvent,
-      FtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Ext4AllocDaBlocks kExt4AllocDaBlocks() { return {}; }
-  template <typename T = Ext4AllocDaBlocksFtraceEvent> T* set_ext4_alloc_da_blocks() {
-    return BeginNestedMessage<T>(134);
-  }
-
-
-  using FieldMetadata_Ext4AllocateBlocks =
-    ::protozero::proto_utils::FieldMetadata<
-      135,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      Ext4AllocateBlocksFtraceEvent,
-      FtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Ext4AllocateBlocks kExt4AllocateBlocks() { return {}; }
-  template <typename T = Ext4AllocateBlocksFtraceEvent> T* set_ext4_allocate_blocks() {
-    return BeginNestedMessage<T>(135);
-  }
-
-
-  using FieldMetadata_Ext4AllocateInode =
-    ::protozero::proto_utils::FieldMetadata<
-      136,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      Ext4AllocateInodeFtraceEvent,
-      FtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Ext4AllocateInode kExt4AllocateInode() { return {}; }
-  template <typename T = Ext4AllocateInodeFtraceEvent> T* set_ext4_allocate_inode() {
-    return BeginNestedMessage<T>(136);
-  }
-
-
-  using FieldMetadata_Ext4BeginOrderedTruncate =
-    ::protozero::proto_utils::FieldMetadata<
-      137,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      Ext4BeginOrderedTruncateFtraceEvent,
-      FtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Ext4BeginOrderedTruncate kExt4BeginOrderedTruncate() { return {}; }
-  template <typename T = Ext4BeginOrderedTruncateFtraceEvent> T* set_ext4_begin_ordered_truncate() {
-    return BeginNestedMessage<T>(137);
-  }
-
-
-  using FieldMetadata_Ext4CollapseRange =
-    ::protozero::proto_utils::FieldMetadata<
-      138,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      Ext4CollapseRangeFtraceEvent,
-      FtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Ext4CollapseRange kExt4CollapseRange() { return {}; }
-  template <typename T = Ext4CollapseRangeFtraceEvent> T* set_ext4_collapse_range() {
-    return BeginNestedMessage<T>(138);
-  }
-
-
-  using FieldMetadata_Ext4DaReleaseSpace =
-    ::protozero::proto_utils::FieldMetadata<
-      139,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      Ext4DaReleaseSpaceFtraceEvent,
-      FtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Ext4DaReleaseSpace kExt4DaReleaseSpace() { return {}; }
-  template <typename T = Ext4DaReleaseSpaceFtraceEvent> T* set_ext4_da_release_space() {
-    return BeginNestedMessage<T>(139);
-  }
-
-
-  using FieldMetadata_Ext4DaReserveSpace =
-    ::protozero::proto_utils::FieldMetadata<
-      140,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      Ext4DaReserveSpaceFtraceEvent,
-      FtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Ext4DaReserveSpace kExt4DaReserveSpace() { return {}; }
-  template <typename T = Ext4DaReserveSpaceFtraceEvent> T* set_ext4_da_reserve_space() {
-    return BeginNestedMessage<T>(140);
-  }
-
-
-  using FieldMetadata_Ext4DaUpdateReserveSpace =
-    ::protozero::proto_utils::FieldMetadata<
-      141,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      Ext4DaUpdateReserveSpaceFtraceEvent,
-      FtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Ext4DaUpdateReserveSpace kExt4DaUpdateReserveSpace() { return {}; }
-  template <typename T = Ext4DaUpdateReserveSpaceFtraceEvent> T* set_ext4_da_update_reserve_space() {
-    return BeginNestedMessage<T>(141);
-  }
-
-
-  using FieldMetadata_Ext4DaWritePages =
-    ::protozero::proto_utils::FieldMetadata<
-      142,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      Ext4DaWritePagesFtraceEvent,
-      FtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Ext4DaWritePages kExt4DaWritePages() { return {}; }
-  template <typename T = Ext4DaWritePagesFtraceEvent> T* set_ext4_da_write_pages() {
-    return BeginNestedMessage<T>(142);
-  }
-
-
-  using FieldMetadata_Ext4DaWritePagesExtent =
-    ::protozero::proto_utils::FieldMetadata<
-      143,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      Ext4DaWritePagesExtentFtraceEvent,
-      FtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Ext4DaWritePagesExtent kExt4DaWritePagesExtent() { return {}; }
-  template <typename T = Ext4DaWritePagesExtentFtraceEvent> T* set_ext4_da_write_pages_extent() {
-    return BeginNestedMessage<T>(143);
-  }
-
-
-  using FieldMetadata_Ext4DirectIOEnter =
-    ::protozero::proto_utils::FieldMetadata<
-      144,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      Ext4DirectIOEnterFtraceEvent,
-      FtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Ext4DirectIOEnter kExt4DirectIOEnter() { return {}; }
-  template <typename T = Ext4DirectIOEnterFtraceEvent> T* set_ext4_direct_io_enter() {
-    return BeginNestedMessage<T>(144);
-  }
-
-
-  using FieldMetadata_Ext4DirectIOExit =
-    ::protozero::proto_utils::FieldMetadata<
-      145,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      Ext4DirectIOExitFtraceEvent,
-      FtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Ext4DirectIOExit kExt4DirectIOExit() { return {}; }
-  template <typename T = Ext4DirectIOExitFtraceEvent> T* set_ext4_direct_io_exit() {
-    return BeginNestedMessage<T>(145);
-  }
-
-
-  using FieldMetadata_Ext4DiscardBlocks =
-    ::protozero::proto_utils::FieldMetadata<
-      146,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      Ext4DiscardBlocksFtraceEvent,
-      FtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Ext4DiscardBlocks kExt4DiscardBlocks() { return {}; }
-  template <typename T = Ext4DiscardBlocksFtraceEvent> T* set_ext4_discard_blocks() {
-    return BeginNestedMessage<T>(146);
-  }
-
-
-  using FieldMetadata_Ext4DiscardPreallocations =
-    ::protozero::proto_utils::FieldMetadata<
-      147,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      Ext4DiscardPreallocationsFtraceEvent,
-      FtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Ext4DiscardPreallocations kExt4DiscardPreallocations() { return {}; }
-  template <typename T = Ext4DiscardPreallocationsFtraceEvent> T* set_ext4_discard_preallocations() {
-    return BeginNestedMessage<T>(147);
-  }
-
-
-  using FieldMetadata_Ext4DropInode =
-    ::protozero::proto_utils::FieldMetadata<
-      148,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      Ext4DropInodeFtraceEvent,
-      FtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Ext4DropInode kExt4DropInode() { return {}; }
-  template <typename T = Ext4DropInodeFtraceEvent> T* set_ext4_drop_inode() {
-    return BeginNestedMessage<T>(148);
-  }
-
-
-  using FieldMetadata_Ext4EsCacheExtent =
-    ::protozero::proto_utils::FieldMetadata<
-      149,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      Ext4EsCacheExtentFtraceEvent,
-      FtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Ext4EsCacheExtent kExt4EsCacheExtent() { return {}; }
-  template <typename T = Ext4EsCacheExtentFtraceEvent> T* set_ext4_es_cache_extent() {
-    return BeginNestedMessage<T>(149);
-  }
-
-
-  using FieldMetadata_Ext4EsFindDelayedExtentRangeEnter =
-    ::protozero::proto_utils::FieldMetadata<
-      150,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      Ext4EsFindDelayedExtentRangeEnterFtraceEvent,
-      FtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Ext4EsFindDelayedExtentRangeEnter kExt4EsFindDelayedExtentRangeEnter() { return {}; }
-  template <typename T = Ext4EsFindDelayedExtentRangeEnterFtraceEvent> T* set_ext4_es_find_delayed_extent_range_enter() {
-    return BeginNestedMessage<T>(150);
-  }
-
-
-  using FieldMetadata_Ext4EsFindDelayedExtentRangeExit =
-    ::protozero::proto_utils::FieldMetadata<
-      151,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      Ext4EsFindDelayedExtentRangeExitFtraceEvent,
-      FtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Ext4EsFindDelayedExtentRangeExit kExt4EsFindDelayedExtentRangeExit() { return {}; }
-  template <typename T = Ext4EsFindDelayedExtentRangeExitFtraceEvent> T* set_ext4_es_find_delayed_extent_range_exit() {
-    return BeginNestedMessage<T>(151);
-  }
-
-
-  using FieldMetadata_Ext4EsInsertExtent =
-    ::protozero::proto_utils::FieldMetadata<
-      152,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      Ext4EsInsertExtentFtraceEvent,
-      FtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Ext4EsInsertExtent kExt4EsInsertExtent() { return {}; }
-  template <typename T = Ext4EsInsertExtentFtraceEvent> T* set_ext4_es_insert_extent() {
-    return BeginNestedMessage<T>(152);
-  }
-
-
-  using FieldMetadata_Ext4EsLookupExtentEnter =
-    ::protozero::proto_utils::FieldMetadata<
-      153,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      Ext4EsLookupExtentEnterFtraceEvent,
-      FtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Ext4EsLookupExtentEnter kExt4EsLookupExtentEnter() { return {}; }
-  template <typename T = Ext4EsLookupExtentEnterFtraceEvent> T* set_ext4_es_lookup_extent_enter() {
-    return BeginNestedMessage<T>(153);
-  }
-
-
-  using FieldMetadata_Ext4EsLookupExtentExit =
-    ::protozero::proto_utils::FieldMetadata<
-      154,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      Ext4EsLookupExtentExitFtraceEvent,
-      FtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Ext4EsLookupExtentExit kExt4EsLookupExtentExit() { return {}; }
-  template <typename T = Ext4EsLookupExtentExitFtraceEvent> T* set_ext4_es_lookup_extent_exit() {
-    return BeginNestedMessage<T>(154);
-  }
-
-
-  using FieldMetadata_Ext4EsRemoveExtent =
-    ::protozero::proto_utils::FieldMetadata<
-      155,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      Ext4EsRemoveExtentFtraceEvent,
-      FtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Ext4EsRemoveExtent kExt4EsRemoveExtent() { return {}; }
-  template <typename T = Ext4EsRemoveExtentFtraceEvent> T* set_ext4_es_remove_extent() {
-    return BeginNestedMessage<T>(155);
-  }
-
-
-  using FieldMetadata_Ext4EsShrink =
-    ::protozero::proto_utils::FieldMetadata<
-      156,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      Ext4EsShrinkFtraceEvent,
-      FtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Ext4EsShrink kExt4EsShrink() { return {}; }
-  template <typename T = Ext4EsShrinkFtraceEvent> T* set_ext4_es_shrink() {
-    return BeginNestedMessage<T>(156);
-  }
-
-
-  using FieldMetadata_Ext4EsShrinkCount =
-    ::protozero::proto_utils::FieldMetadata<
-      157,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      Ext4EsShrinkCountFtraceEvent,
-      FtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Ext4EsShrinkCount kExt4EsShrinkCount() { return {}; }
-  template <typename T = Ext4EsShrinkCountFtraceEvent> T* set_ext4_es_shrink_count() {
-    return BeginNestedMessage<T>(157);
-  }
-
-
-  using FieldMetadata_Ext4EsShrinkScanEnter =
-    ::protozero::proto_utils::FieldMetadata<
-      158,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      Ext4EsShrinkScanEnterFtraceEvent,
-      FtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Ext4EsShrinkScanEnter kExt4EsShrinkScanEnter() { return {}; }
-  template <typename T = Ext4EsShrinkScanEnterFtraceEvent> T* set_ext4_es_shrink_scan_enter() {
-    return BeginNestedMessage<T>(158);
-  }
-
-
-  using FieldMetadata_Ext4EsShrinkScanExit =
-    ::protozero::proto_utils::FieldMetadata<
-      159,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      Ext4EsShrinkScanExitFtraceEvent,
-      FtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Ext4EsShrinkScanExit kExt4EsShrinkScanExit() { return {}; }
-  template <typename T = Ext4EsShrinkScanExitFtraceEvent> T* set_ext4_es_shrink_scan_exit() {
-    return BeginNestedMessage<T>(159);
-  }
-
-
-  using FieldMetadata_Ext4EvictInode =
-    ::protozero::proto_utils::FieldMetadata<
-      160,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      Ext4EvictInodeFtraceEvent,
-      FtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Ext4EvictInode kExt4EvictInode() { return {}; }
-  template <typename T = Ext4EvictInodeFtraceEvent> T* set_ext4_evict_inode() {
-    return BeginNestedMessage<T>(160);
-  }
-
-
-  using FieldMetadata_Ext4ExtConvertToInitializedEnter =
-    ::protozero::proto_utils::FieldMetadata<
-      161,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      Ext4ExtConvertToInitializedEnterFtraceEvent,
-      FtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Ext4ExtConvertToInitializedEnter kExt4ExtConvertToInitializedEnter() { return {}; }
-  template <typename T = Ext4ExtConvertToInitializedEnterFtraceEvent> T* set_ext4_ext_convert_to_initialized_enter() {
-    return BeginNestedMessage<T>(161);
-  }
-
-
-  using FieldMetadata_Ext4ExtConvertToInitializedFastpath =
-    ::protozero::proto_utils::FieldMetadata<
-      162,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      Ext4ExtConvertToInitializedFastpathFtraceEvent,
-      FtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Ext4ExtConvertToInitializedFastpath kExt4ExtConvertToInitializedFastpath() { return {}; }
-  template <typename T = Ext4ExtConvertToInitializedFastpathFtraceEvent> T* set_ext4_ext_convert_to_initialized_fastpath() {
-    return BeginNestedMessage<T>(162);
-  }
-
-
-  using FieldMetadata_Ext4ExtHandleUnwrittenExtents =
-    ::protozero::proto_utils::FieldMetadata<
-      163,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      Ext4ExtHandleUnwrittenExtentsFtraceEvent,
-      FtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Ext4ExtHandleUnwrittenExtents kExt4ExtHandleUnwrittenExtents() { return {}; }
-  template <typename T = Ext4ExtHandleUnwrittenExtentsFtraceEvent> T* set_ext4_ext_handle_unwritten_extents() {
-    return BeginNestedMessage<T>(163);
-  }
-
-
-  using FieldMetadata_Ext4ExtInCache =
-    ::protozero::proto_utils::FieldMetadata<
-      164,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      Ext4ExtInCacheFtraceEvent,
-      FtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Ext4ExtInCache kExt4ExtInCache() { return {}; }
-  template <typename T = Ext4ExtInCacheFtraceEvent> T* set_ext4_ext_in_cache() {
-    return BeginNestedMessage<T>(164);
-  }
-
-
-  using FieldMetadata_Ext4ExtLoadExtent =
-    ::protozero::proto_utils::FieldMetadata<
-      165,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      Ext4ExtLoadExtentFtraceEvent,
-      FtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Ext4ExtLoadExtent kExt4ExtLoadExtent() { return {}; }
-  template <typename T = Ext4ExtLoadExtentFtraceEvent> T* set_ext4_ext_load_extent() {
-    return BeginNestedMessage<T>(165);
-  }
-
-
-  using FieldMetadata_Ext4ExtMapBlocksEnter =
-    ::protozero::proto_utils::FieldMetadata<
-      166,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      Ext4ExtMapBlocksEnterFtraceEvent,
-      FtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Ext4ExtMapBlocksEnter kExt4ExtMapBlocksEnter() { return {}; }
-  template <typename T = Ext4ExtMapBlocksEnterFtraceEvent> T* set_ext4_ext_map_blocks_enter() {
-    return BeginNestedMessage<T>(166);
-  }
-
-
-  using FieldMetadata_Ext4ExtMapBlocksExit =
-    ::protozero::proto_utils::FieldMetadata<
-      167,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      Ext4ExtMapBlocksExitFtraceEvent,
-      FtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Ext4ExtMapBlocksExit kExt4ExtMapBlocksExit() { return {}; }
-  template <typename T = Ext4ExtMapBlocksExitFtraceEvent> T* set_ext4_ext_map_blocks_exit() {
-    return BeginNestedMessage<T>(167);
-  }
-
-
-  using FieldMetadata_Ext4ExtPutInCache =
-    ::protozero::proto_utils::FieldMetadata<
-      168,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      Ext4ExtPutInCacheFtraceEvent,
-      FtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Ext4ExtPutInCache kExt4ExtPutInCache() { return {}; }
-  template <typename T = Ext4ExtPutInCacheFtraceEvent> T* set_ext4_ext_put_in_cache() {
-    return BeginNestedMessage<T>(168);
-  }
-
-
-  using FieldMetadata_Ext4ExtRemoveSpace =
-    ::protozero::proto_utils::FieldMetadata<
-      169,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      Ext4ExtRemoveSpaceFtraceEvent,
-      FtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Ext4ExtRemoveSpace kExt4ExtRemoveSpace() { return {}; }
-  template <typename T = Ext4ExtRemoveSpaceFtraceEvent> T* set_ext4_ext_remove_space() {
-    return BeginNestedMessage<T>(169);
-  }
-
-
-  using FieldMetadata_Ext4ExtRemoveSpaceDone =
-    ::protozero::proto_utils::FieldMetadata<
-      170,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      Ext4ExtRemoveSpaceDoneFtraceEvent,
-      FtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Ext4ExtRemoveSpaceDone kExt4ExtRemoveSpaceDone() { return {}; }
-  template <typename T = Ext4ExtRemoveSpaceDoneFtraceEvent> T* set_ext4_ext_remove_space_done() {
-    return BeginNestedMessage<T>(170);
-  }
-
-
-  using FieldMetadata_Ext4ExtRmIdx =
-    ::protozero::proto_utils::FieldMetadata<
-      171,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      Ext4ExtRmIdxFtraceEvent,
-      FtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Ext4ExtRmIdx kExt4ExtRmIdx() { return {}; }
-  template <typename T = Ext4ExtRmIdxFtraceEvent> T* set_ext4_ext_rm_idx() {
-    return BeginNestedMessage<T>(171);
-  }
-
-
-  using FieldMetadata_Ext4ExtRmLeaf =
-    ::protozero::proto_utils::FieldMetadata<
-      172,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      Ext4ExtRmLeafFtraceEvent,
-      FtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Ext4ExtRmLeaf kExt4ExtRmLeaf() { return {}; }
-  template <typename T = Ext4ExtRmLeafFtraceEvent> T* set_ext4_ext_rm_leaf() {
-    return BeginNestedMessage<T>(172);
-  }
-
-
-  using FieldMetadata_Ext4ExtShowExtent =
-    ::protozero::proto_utils::FieldMetadata<
-      173,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      Ext4ExtShowExtentFtraceEvent,
-      FtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Ext4ExtShowExtent kExt4ExtShowExtent() { return {}; }
-  template <typename T = Ext4ExtShowExtentFtraceEvent> T* set_ext4_ext_show_extent() {
-    return BeginNestedMessage<T>(173);
-  }
-
-
-  using FieldMetadata_Ext4FallocateEnter =
-    ::protozero::proto_utils::FieldMetadata<
-      174,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      Ext4FallocateEnterFtraceEvent,
-      FtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Ext4FallocateEnter kExt4FallocateEnter() { return {}; }
-  template <typename T = Ext4FallocateEnterFtraceEvent> T* set_ext4_fallocate_enter() {
-    return BeginNestedMessage<T>(174);
-  }
-
-
-  using FieldMetadata_Ext4FallocateExit =
-    ::protozero::proto_utils::FieldMetadata<
-      175,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      Ext4FallocateExitFtraceEvent,
-      FtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Ext4FallocateExit kExt4FallocateExit() { return {}; }
-  template <typename T = Ext4FallocateExitFtraceEvent> T* set_ext4_fallocate_exit() {
-    return BeginNestedMessage<T>(175);
-  }
-
-
-  using FieldMetadata_Ext4FindDelallocRange =
-    ::protozero::proto_utils::FieldMetadata<
-      176,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      Ext4FindDelallocRangeFtraceEvent,
-      FtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Ext4FindDelallocRange kExt4FindDelallocRange() { return {}; }
-  template <typename T = Ext4FindDelallocRangeFtraceEvent> T* set_ext4_find_delalloc_range() {
-    return BeginNestedMessage<T>(176);
-  }
-
-
-  using FieldMetadata_Ext4Forget =
-    ::protozero::proto_utils::FieldMetadata<
-      177,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      Ext4ForgetFtraceEvent,
-      FtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Ext4Forget kExt4Forget() { return {}; }
-  template <typename T = Ext4ForgetFtraceEvent> T* set_ext4_forget() {
-    return BeginNestedMessage<T>(177);
-  }
-
-
-  using FieldMetadata_Ext4FreeBlocks =
-    ::protozero::proto_utils::FieldMetadata<
-      178,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      Ext4FreeBlocksFtraceEvent,
-      FtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Ext4FreeBlocks kExt4FreeBlocks() { return {}; }
-  template <typename T = Ext4FreeBlocksFtraceEvent> T* set_ext4_free_blocks() {
-    return BeginNestedMessage<T>(178);
-  }
-
-
-  using FieldMetadata_Ext4FreeInode =
-    ::protozero::proto_utils::FieldMetadata<
-      179,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      Ext4FreeInodeFtraceEvent,
-      FtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Ext4FreeInode kExt4FreeInode() { return {}; }
-  template <typename T = Ext4FreeInodeFtraceEvent> T* set_ext4_free_inode() {
-    return BeginNestedMessage<T>(179);
-  }
-
-
-  using FieldMetadata_Ext4GetImpliedClusterAllocExit =
-    ::protozero::proto_utils::FieldMetadata<
-      180,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      Ext4GetImpliedClusterAllocExitFtraceEvent,
-      FtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Ext4GetImpliedClusterAllocExit kExt4GetImpliedClusterAllocExit() { return {}; }
-  template <typename T = Ext4GetImpliedClusterAllocExitFtraceEvent> T* set_ext4_get_implied_cluster_alloc_exit() {
-    return BeginNestedMessage<T>(180);
-  }
-
-
-  using FieldMetadata_Ext4GetReservedClusterAlloc =
-    ::protozero::proto_utils::FieldMetadata<
-      181,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      Ext4GetReservedClusterAllocFtraceEvent,
-      FtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Ext4GetReservedClusterAlloc kExt4GetReservedClusterAlloc() { return {}; }
-  template <typename T = Ext4GetReservedClusterAllocFtraceEvent> T* set_ext4_get_reserved_cluster_alloc() {
-    return BeginNestedMessage<T>(181);
-  }
-
-
-  using FieldMetadata_Ext4IndMapBlocksEnter =
-    ::protozero::proto_utils::FieldMetadata<
-      182,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      Ext4IndMapBlocksEnterFtraceEvent,
-      FtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Ext4IndMapBlocksEnter kExt4IndMapBlocksEnter() { return {}; }
-  template <typename T = Ext4IndMapBlocksEnterFtraceEvent> T* set_ext4_ind_map_blocks_enter() {
-    return BeginNestedMessage<T>(182);
-  }
-
-
-  using FieldMetadata_Ext4IndMapBlocksExit =
-    ::protozero::proto_utils::FieldMetadata<
-      183,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      Ext4IndMapBlocksExitFtraceEvent,
-      FtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Ext4IndMapBlocksExit kExt4IndMapBlocksExit() { return {}; }
-  template <typename T = Ext4IndMapBlocksExitFtraceEvent> T* set_ext4_ind_map_blocks_exit() {
-    return BeginNestedMessage<T>(183);
-  }
-
-
-  using FieldMetadata_Ext4InsertRange =
-    ::protozero::proto_utils::FieldMetadata<
-      184,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      Ext4InsertRangeFtraceEvent,
-      FtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Ext4InsertRange kExt4InsertRange() { return {}; }
-  template <typename T = Ext4InsertRangeFtraceEvent> T* set_ext4_insert_range() {
-    return BeginNestedMessage<T>(184);
-  }
-
-
-  using FieldMetadata_Ext4Invalidatepage =
-    ::protozero::proto_utils::FieldMetadata<
-      185,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      Ext4InvalidatepageFtraceEvent,
-      FtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Ext4Invalidatepage kExt4Invalidatepage() { return {}; }
-  template <typename T = Ext4InvalidatepageFtraceEvent> T* set_ext4_invalidatepage() {
-    return BeginNestedMessage<T>(185);
-  }
-
-
-  using FieldMetadata_Ext4JournalStart =
-    ::protozero::proto_utils::FieldMetadata<
-      186,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      Ext4JournalStartFtraceEvent,
-      FtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Ext4JournalStart kExt4JournalStart() { return {}; }
-  template <typename T = Ext4JournalStartFtraceEvent> T* set_ext4_journal_start() {
-    return BeginNestedMessage<T>(186);
-  }
-
-
-  using FieldMetadata_Ext4JournalStartReserved =
-    ::protozero::proto_utils::FieldMetadata<
-      187,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      Ext4JournalStartReservedFtraceEvent,
-      FtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Ext4JournalStartReserved kExt4JournalStartReserved() { return {}; }
-  template <typename T = Ext4JournalStartReservedFtraceEvent> T* set_ext4_journal_start_reserved() {
-    return BeginNestedMessage<T>(187);
-  }
-
-
-  using FieldMetadata_Ext4JournalledInvalidatepage =
-    ::protozero::proto_utils::FieldMetadata<
-      188,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      Ext4JournalledInvalidatepageFtraceEvent,
-      FtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Ext4JournalledInvalidatepage kExt4JournalledInvalidatepage() { return {}; }
-  template <typename T = Ext4JournalledInvalidatepageFtraceEvent> T* set_ext4_journalled_invalidatepage() {
-    return BeginNestedMessage<T>(188);
-  }
-
-
-  using FieldMetadata_Ext4JournalledWriteEnd =
-    ::protozero::proto_utils::FieldMetadata<
-      189,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      Ext4JournalledWriteEndFtraceEvent,
-      FtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Ext4JournalledWriteEnd kExt4JournalledWriteEnd() { return {}; }
-  template <typename T = Ext4JournalledWriteEndFtraceEvent> T* set_ext4_journalled_write_end() {
-    return BeginNestedMessage<T>(189);
-  }
-
-
-  using FieldMetadata_Ext4LoadInode =
-    ::protozero::proto_utils::FieldMetadata<
-      190,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      Ext4LoadInodeFtraceEvent,
-      FtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Ext4LoadInode kExt4LoadInode() { return {}; }
-  template <typename T = Ext4LoadInodeFtraceEvent> T* set_ext4_load_inode() {
-    return BeginNestedMessage<T>(190);
-  }
-
-
-  using FieldMetadata_Ext4LoadInodeBitmap =
-    ::protozero::proto_utils::FieldMetadata<
-      191,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      Ext4LoadInodeBitmapFtraceEvent,
-      FtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Ext4LoadInodeBitmap kExt4LoadInodeBitmap() { return {}; }
-  template <typename T = Ext4LoadInodeBitmapFtraceEvent> T* set_ext4_load_inode_bitmap() {
-    return BeginNestedMessage<T>(191);
-  }
-
-
-  using FieldMetadata_Ext4MarkInodeDirty =
-    ::protozero::proto_utils::FieldMetadata<
-      192,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      Ext4MarkInodeDirtyFtraceEvent,
-      FtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Ext4MarkInodeDirty kExt4MarkInodeDirty() { return {}; }
-  template <typename T = Ext4MarkInodeDirtyFtraceEvent> T* set_ext4_mark_inode_dirty() {
-    return BeginNestedMessage<T>(192);
-  }
-
-
-  using FieldMetadata_Ext4MbBitmapLoad =
-    ::protozero::proto_utils::FieldMetadata<
-      193,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      Ext4MbBitmapLoadFtraceEvent,
-      FtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Ext4MbBitmapLoad kExt4MbBitmapLoad() { return {}; }
-  template <typename T = Ext4MbBitmapLoadFtraceEvent> T* set_ext4_mb_bitmap_load() {
-    return BeginNestedMessage<T>(193);
-  }
-
-
-  using FieldMetadata_Ext4MbBuddyBitmapLoad =
-    ::protozero::proto_utils::FieldMetadata<
-      194,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      Ext4MbBuddyBitmapLoadFtraceEvent,
-      FtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Ext4MbBuddyBitmapLoad kExt4MbBuddyBitmapLoad() { return {}; }
-  template <typename T = Ext4MbBuddyBitmapLoadFtraceEvent> T* set_ext4_mb_buddy_bitmap_load() {
-    return BeginNestedMessage<T>(194);
-  }
-
-
-  using FieldMetadata_Ext4MbDiscardPreallocations =
-    ::protozero::proto_utils::FieldMetadata<
-      195,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      Ext4MbDiscardPreallocationsFtraceEvent,
-      FtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Ext4MbDiscardPreallocations kExt4MbDiscardPreallocations() { return {}; }
-  template <typename T = Ext4MbDiscardPreallocationsFtraceEvent> T* set_ext4_mb_discard_preallocations() {
-    return BeginNestedMessage<T>(195);
-  }
-
-
-  using FieldMetadata_Ext4MbNewGroupPa =
-    ::protozero::proto_utils::FieldMetadata<
-      196,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      Ext4MbNewGroupPaFtraceEvent,
-      FtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Ext4MbNewGroupPa kExt4MbNewGroupPa() { return {}; }
-  template <typename T = Ext4MbNewGroupPaFtraceEvent> T* set_ext4_mb_new_group_pa() {
-    return BeginNestedMessage<T>(196);
-  }
-
-
-  using FieldMetadata_Ext4MbNewInodePa =
-    ::protozero::proto_utils::FieldMetadata<
-      197,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      Ext4MbNewInodePaFtraceEvent,
-      FtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Ext4MbNewInodePa kExt4MbNewInodePa() { return {}; }
-  template <typename T = Ext4MbNewInodePaFtraceEvent> T* set_ext4_mb_new_inode_pa() {
-    return BeginNestedMessage<T>(197);
-  }
-
-
-  using FieldMetadata_Ext4MbReleaseGroupPa =
-    ::protozero::proto_utils::FieldMetadata<
-      198,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      Ext4MbReleaseGroupPaFtraceEvent,
-      FtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Ext4MbReleaseGroupPa kExt4MbReleaseGroupPa() { return {}; }
-  template <typename T = Ext4MbReleaseGroupPaFtraceEvent> T* set_ext4_mb_release_group_pa() {
-    return BeginNestedMessage<T>(198);
-  }
-
-
-  using FieldMetadata_Ext4MbReleaseInodePa =
-    ::protozero::proto_utils::FieldMetadata<
-      199,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      Ext4MbReleaseInodePaFtraceEvent,
-      FtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Ext4MbReleaseInodePa kExt4MbReleaseInodePa() { return {}; }
-  template <typename T = Ext4MbReleaseInodePaFtraceEvent> T* set_ext4_mb_release_inode_pa() {
-    return BeginNestedMessage<T>(199);
-  }
-
-
-  using FieldMetadata_Ext4MballocAlloc =
-    ::protozero::proto_utils::FieldMetadata<
-      200,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      Ext4MballocAllocFtraceEvent,
-      FtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Ext4MballocAlloc kExt4MballocAlloc() { return {}; }
-  template <typename T = Ext4MballocAllocFtraceEvent> T* set_ext4_mballoc_alloc() {
-    return BeginNestedMessage<T>(200);
-  }
-
-
-  using FieldMetadata_Ext4MballocDiscard =
-    ::protozero::proto_utils::FieldMetadata<
-      201,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      Ext4MballocDiscardFtraceEvent,
-      FtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Ext4MballocDiscard kExt4MballocDiscard() { return {}; }
-  template <typename T = Ext4MballocDiscardFtraceEvent> T* set_ext4_mballoc_discard() {
-    return BeginNestedMessage<T>(201);
-  }
-
-
-  using FieldMetadata_Ext4MballocFree =
-    ::protozero::proto_utils::FieldMetadata<
-      202,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      Ext4MballocFreeFtraceEvent,
-      FtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Ext4MballocFree kExt4MballocFree() { return {}; }
-  template <typename T = Ext4MballocFreeFtraceEvent> T* set_ext4_mballoc_free() {
-    return BeginNestedMessage<T>(202);
-  }
-
-
-  using FieldMetadata_Ext4MballocPrealloc =
-    ::protozero::proto_utils::FieldMetadata<
-      203,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      Ext4MballocPreallocFtraceEvent,
-      FtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Ext4MballocPrealloc kExt4MballocPrealloc() { return {}; }
-  template <typename T = Ext4MballocPreallocFtraceEvent> T* set_ext4_mballoc_prealloc() {
-    return BeginNestedMessage<T>(203);
-  }
-
-
-  using FieldMetadata_Ext4OtherInodeUpdateTime =
-    ::protozero::proto_utils::FieldMetadata<
-      204,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      Ext4OtherInodeUpdateTimeFtraceEvent,
-      FtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Ext4OtherInodeUpdateTime kExt4OtherInodeUpdateTime() { return {}; }
-  template <typename T = Ext4OtherInodeUpdateTimeFtraceEvent> T* set_ext4_other_inode_update_time() {
-    return BeginNestedMessage<T>(204);
-  }
-
-
-  using FieldMetadata_Ext4PunchHole =
-    ::protozero::proto_utils::FieldMetadata<
-      205,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      Ext4PunchHoleFtraceEvent,
-      FtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Ext4PunchHole kExt4PunchHole() { return {}; }
-  template <typename T = Ext4PunchHoleFtraceEvent> T* set_ext4_punch_hole() {
-    return BeginNestedMessage<T>(205);
-  }
-
-
-  using FieldMetadata_Ext4ReadBlockBitmapLoad =
-    ::protozero::proto_utils::FieldMetadata<
-      206,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      Ext4ReadBlockBitmapLoadFtraceEvent,
-      FtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Ext4ReadBlockBitmapLoad kExt4ReadBlockBitmapLoad() { return {}; }
-  template <typename T = Ext4ReadBlockBitmapLoadFtraceEvent> T* set_ext4_read_block_bitmap_load() {
-    return BeginNestedMessage<T>(206);
-  }
-
-
-  using FieldMetadata_Ext4Readpage =
-    ::protozero::proto_utils::FieldMetadata<
-      207,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      Ext4ReadpageFtraceEvent,
-      FtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Ext4Readpage kExt4Readpage() { return {}; }
-  template <typename T = Ext4ReadpageFtraceEvent> T* set_ext4_readpage() {
-    return BeginNestedMessage<T>(207);
-  }
-
-
-  using FieldMetadata_Ext4Releasepage =
-    ::protozero::proto_utils::FieldMetadata<
-      208,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      Ext4ReleasepageFtraceEvent,
-      FtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Ext4Releasepage kExt4Releasepage() { return {}; }
-  template <typename T = Ext4ReleasepageFtraceEvent> T* set_ext4_releasepage() {
-    return BeginNestedMessage<T>(208);
-  }
-
-
-  using FieldMetadata_Ext4RemoveBlocks =
-    ::protozero::proto_utils::FieldMetadata<
-      209,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      Ext4RemoveBlocksFtraceEvent,
-      FtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Ext4RemoveBlocks kExt4RemoveBlocks() { return {}; }
-  template <typename T = Ext4RemoveBlocksFtraceEvent> T* set_ext4_remove_blocks() {
-    return BeginNestedMessage<T>(209);
-  }
-
-
-  using FieldMetadata_Ext4RequestBlocks =
-    ::protozero::proto_utils::FieldMetadata<
-      210,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      Ext4RequestBlocksFtraceEvent,
-      FtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Ext4RequestBlocks kExt4RequestBlocks() { return {}; }
-  template <typename T = Ext4RequestBlocksFtraceEvent> T* set_ext4_request_blocks() {
-    return BeginNestedMessage<T>(210);
-  }
-
-
-  using FieldMetadata_Ext4RequestInode =
-    ::protozero::proto_utils::FieldMetadata<
-      211,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      Ext4RequestInodeFtraceEvent,
-      FtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Ext4RequestInode kExt4RequestInode() { return {}; }
-  template <typename T = Ext4RequestInodeFtraceEvent> T* set_ext4_request_inode() {
-    return BeginNestedMessage<T>(211);
-  }
-
-
-  using FieldMetadata_Ext4SyncFs =
-    ::protozero::proto_utils::FieldMetadata<
-      212,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      Ext4SyncFsFtraceEvent,
-      FtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Ext4SyncFs kExt4SyncFs() { return {}; }
-  template <typename T = Ext4SyncFsFtraceEvent> T* set_ext4_sync_fs() {
-    return BeginNestedMessage<T>(212);
-  }
-
-
-  using FieldMetadata_Ext4TrimAllFree =
-    ::protozero::proto_utils::FieldMetadata<
-      213,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      Ext4TrimAllFreeFtraceEvent,
-      FtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Ext4TrimAllFree kExt4TrimAllFree() { return {}; }
-  template <typename T = Ext4TrimAllFreeFtraceEvent> T* set_ext4_trim_all_free() {
-    return BeginNestedMessage<T>(213);
-  }
-
-
-  using FieldMetadata_Ext4TrimExtent =
-    ::protozero::proto_utils::FieldMetadata<
-      214,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      Ext4TrimExtentFtraceEvent,
-      FtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Ext4TrimExtent kExt4TrimExtent() { return {}; }
-  template <typename T = Ext4TrimExtentFtraceEvent> T* set_ext4_trim_extent() {
-    return BeginNestedMessage<T>(214);
-  }
-
-
-  using FieldMetadata_Ext4TruncateEnter =
-    ::protozero::proto_utils::FieldMetadata<
-      215,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      Ext4TruncateEnterFtraceEvent,
-      FtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Ext4TruncateEnter kExt4TruncateEnter() { return {}; }
-  template <typename T = Ext4TruncateEnterFtraceEvent> T* set_ext4_truncate_enter() {
-    return BeginNestedMessage<T>(215);
-  }
-
-
-  using FieldMetadata_Ext4TruncateExit =
-    ::protozero::proto_utils::FieldMetadata<
-      216,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      Ext4TruncateExitFtraceEvent,
-      FtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Ext4TruncateExit kExt4TruncateExit() { return {}; }
-  template <typename T = Ext4TruncateExitFtraceEvent> T* set_ext4_truncate_exit() {
-    return BeginNestedMessage<T>(216);
-  }
-
-
-  using FieldMetadata_Ext4UnlinkEnter =
-    ::protozero::proto_utils::FieldMetadata<
-      217,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      Ext4UnlinkEnterFtraceEvent,
-      FtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Ext4UnlinkEnter kExt4UnlinkEnter() { return {}; }
-  template <typename T = Ext4UnlinkEnterFtraceEvent> T* set_ext4_unlink_enter() {
-    return BeginNestedMessage<T>(217);
-  }
-
-
-  using FieldMetadata_Ext4UnlinkExit =
-    ::protozero::proto_utils::FieldMetadata<
-      218,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      Ext4UnlinkExitFtraceEvent,
-      FtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Ext4UnlinkExit kExt4UnlinkExit() { return {}; }
-  template <typename T = Ext4UnlinkExitFtraceEvent> T* set_ext4_unlink_exit() {
-    return BeginNestedMessage<T>(218);
-  }
-
-
-  using FieldMetadata_Ext4WriteBegin =
-    ::protozero::proto_utils::FieldMetadata<
-      219,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      Ext4WriteBeginFtraceEvent,
-      FtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Ext4WriteBegin kExt4WriteBegin() { return {}; }
-  template <typename T = Ext4WriteBeginFtraceEvent> T* set_ext4_write_begin() {
-    return BeginNestedMessage<T>(219);
-  }
-
-
-  using FieldMetadata_Ext4WriteEnd =
-    ::protozero::proto_utils::FieldMetadata<
-      230,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      Ext4WriteEndFtraceEvent,
-      FtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Ext4WriteEnd kExt4WriteEnd() { return {}; }
-  template <typename T = Ext4WriteEndFtraceEvent> T* set_ext4_write_end() {
-    return BeginNestedMessage<T>(230);
-  }
-
-
-  using FieldMetadata_Ext4Writepage =
-    ::protozero::proto_utils::FieldMetadata<
-      231,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      Ext4WritepageFtraceEvent,
-      FtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Ext4Writepage kExt4Writepage() { return {}; }
-  template <typename T = Ext4WritepageFtraceEvent> T* set_ext4_writepage() {
-    return BeginNestedMessage<T>(231);
-  }
-
-
-  using FieldMetadata_Ext4Writepages =
-    ::protozero::proto_utils::FieldMetadata<
-      232,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      Ext4WritepagesFtraceEvent,
-      FtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Ext4Writepages kExt4Writepages() { return {}; }
-  template <typename T = Ext4WritepagesFtraceEvent> T* set_ext4_writepages() {
-    return BeginNestedMessage<T>(232);
-  }
-
-
-  using FieldMetadata_Ext4WritepagesResult =
-    ::protozero::proto_utils::FieldMetadata<
-      233,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      Ext4WritepagesResultFtraceEvent,
-      FtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Ext4WritepagesResult kExt4WritepagesResult() { return {}; }
-  template <typename T = Ext4WritepagesResultFtraceEvent> T* set_ext4_writepages_result() {
-    return BeginNestedMessage<T>(233);
-  }
-
-
-  using FieldMetadata_Ext4ZeroRange =
-    ::protozero::proto_utils::FieldMetadata<
-      234,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      Ext4ZeroRangeFtraceEvent,
-      FtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Ext4ZeroRange kExt4ZeroRange() { return {}; }
-  template <typename T = Ext4ZeroRangeFtraceEvent> T* set_ext4_zero_range() {
-    return BeginNestedMessage<T>(234);
-  }
-
-
-  using FieldMetadata_TaskNewtask =
-    ::protozero::proto_utils::FieldMetadata<
-      235,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      TaskNewtaskFtraceEvent,
-      FtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_TaskNewtask kTaskNewtask() { return {}; }
-  template <typename T = TaskNewtaskFtraceEvent> T* set_task_newtask() {
-    return BeginNestedMessage<T>(235);
-  }
-
-
-  using FieldMetadata_TaskRename =
-    ::protozero::proto_utils::FieldMetadata<
-      236,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      TaskRenameFtraceEvent,
-      FtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_TaskRename kTaskRename() { return {}; }
-  template <typename T = TaskRenameFtraceEvent> T* set_task_rename() {
-    return BeginNestedMessage<T>(236);
-  }
-
-
-  using FieldMetadata_SchedProcessExec =
-    ::protozero::proto_utils::FieldMetadata<
-      237,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      SchedProcessExecFtraceEvent,
-      FtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_SchedProcessExec kSchedProcessExec() { return {}; }
-  template <typename T = SchedProcessExecFtraceEvent> T* set_sched_process_exec() {
-    return BeginNestedMessage<T>(237);
-  }
-
-
-  using FieldMetadata_SchedProcessExit =
-    ::protozero::proto_utils::FieldMetadata<
-      238,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      SchedProcessExitFtraceEvent,
-      FtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_SchedProcessExit kSchedProcessExit() { return {}; }
-  template <typename T = SchedProcessExitFtraceEvent> T* set_sched_process_exit() {
-    return BeginNestedMessage<T>(238);
-  }
-
-
-  using FieldMetadata_SchedProcessFork =
-    ::protozero::proto_utils::FieldMetadata<
-      239,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      SchedProcessForkFtraceEvent,
-      FtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_SchedProcessFork kSchedProcessFork() { return {}; }
-  template <typename T = SchedProcessForkFtraceEvent> T* set_sched_process_fork() {
-    return BeginNestedMessage<T>(239);
-  }
-
-
-  using FieldMetadata_SchedProcessFree =
-    ::protozero::proto_utils::FieldMetadata<
-      240,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      SchedProcessFreeFtraceEvent,
-      FtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_SchedProcessFree kSchedProcessFree() { return {}; }
-  template <typename T = SchedProcessFreeFtraceEvent> T* set_sched_process_free() {
-    return BeginNestedMessage<T>(240);
-  }
-
-
-  using FieldMetadata_SchedProcessHang =
-    ::protozero::proto_utils::FieldMetadata<
-      241,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      SchedProcessHangFtraceEvent,
-      FtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_SchedProcessHang kSchedProcessHang() { return {}; }
-  template <typename T = SchedProcessHangFtraceEvent> T* set_sched_process_hang() {
-    return BeginNestedMessage<T>(241);
-  }
-
-
-  using FieldMetadata_SchedProcessWait =
-    ::protozero::proto_utils::FieldMetadata<
-      242,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      SchedProcessWaitFtraceEvent,
-      FtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_SchedProcessWait kSchedProcessWait() { return {}; }
-  template <typename T = SchedProcessWaitFtraceEvent> T* set_sched_process_wait() {
-    return BeginNestedMessage<T>(242);
-  }
-
-
-  using FieldMetadata_F2fsDoSubmitBio =
-    ::protozero::proto_utils::FieldMetadata<
-      243,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      F2fsDoSubmitBioFtraceEvent,
-      FtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_F2fsDoSubmitBio kF2fsDoSubmitBio() { return {}; }
-  template <typename T = F2fsDoSubmitBioFtraceEvent> T* set_f2fs_do_submit_bio() {
-    return BeginNestedMessage<T>(243);
-  }
-
-
-  using FieldMetadata_F2fsEvictInode =
-    ::protozero::proto_utils::FieldMetadata<
-      244,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      F2fsEvictInodeFtraceEvent,
-      FtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_F2fsEvictInode kF2fsEvictInode() { return {}; }
-  template <typename T = F2fsEvictInodeFtraceEvent> T* set_f2fs_evict_inode() {
-    return BeginNestedMessage<T>(244);
-  }
-
-
-  using FieldMetadata_F2fsFallocate =
-    ::protozero::proto_utils::FieldMetadata<
-      245,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      F2fsFallocateFtraceEvent,
-      FtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_F2fsFallocate kF2fsFallocate() { return {}; }
-  template <typename T = F2fsFallocateFtraceEvent> T* set_f2fs_fallocate() {
-    return BeginNestedMessage<T>(245);
-  }
-
-
-  using FieldMetadata_F2fsGetDataBlock =
-    ::protozero::proto_utils::FieldMetadata<
-      246,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      F2fsGetDataBlockFtraceEvent,
-      FtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_F2fsGetDataBlock kF2fsGetDataBlock() { return {}; }
-  template <typename T = F2fsGetDataBlockFtraceEvent> T* set_f2fs_get_data_block() {
-    return BeginNestedMessage<T>(246);
-  }
-
-
-  using FieldMetadata_F2fsGetVictim =
-    ::protozero::proto_utils::FieldMetadata<
-      247,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      F2fsGetVictimFtraceEvent,
-      FtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_F2fsGetVictim kF2fsGetVictim() { return {}; }
-  template <typename T = F2fsGetVictimFtraceEvent> T* set_f2fs_get_victim() {
-    return BeginNestedMessage<T>(247);
-  }
-
-
-  using FieldMetadata_F2fsIget =
-    ::protozero::proto_utils::FieldMetadata<
-      248,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      F2fsIgetFtraceEvent,
-      FtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_F2fsIget kF2fsIget() { return {}; }
-  template <typename T = F2fsIgetFtraceEvent> T* set_f2fs_iget() {
-    return BeginNestedMessage<T>(248);
-  }
-
-
-  using FieldMetadata_F2fsIgetExit =
-    ::protozero::proto_utils::FieldMetadata<
-      249,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      F2fsIgetExitFtraceEvent,
-      FtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_F2fsIgetExit kF2fsIgetExit() { return {}; }
-  template <typename T = F2fsIgetExitFtraceEvent> T* set_f2fs_iget_exit() {
-    return BeginNestedMessage<T>(249);
-  }
-
-
-  using FieldMetadata_F2fsNewInode =
-    ::protozero::proto_utils::FieldMetadata<
-      250,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      F2fsNewInodeFtraceEvent,
-      FtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_F2fsNewInode kF2fsNewInode() { return {}; }
-  template <typename T = F2fsNewInodeFtraceEvent> T* set_f2fs_new_inode() {
-    return BeginNestedMessage<T>(250);
-  }
-
-
-  using FieldMetadata_F2fsReadpage =
-    ::protozero::proto_utils::FieldMetadata<
-      251,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      F2fsReadpageFtraceEvent,
-      FtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_F2fsReadpage kF2fsReadpage() { return {}; }
-  template <typename T = F2fsReadpageFtraceEvent> T* set_f2fs_readpage() {
-    return BeginNestedMessage<T>(251);
-  }
-
-
-  using FieldMetadata_F2fsReserveNewBlock =
-    ::protozero::proto_utils::FieldMetadata<
-      252,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      F2fsReserveNewBlockFtraceEvent,
-      FtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_F2fsReserveNewBlock kF2fsReserveNewBlock() { return {}; }
-  template <typename T = F2fsReserveNewBlockFtraceEvent> T* set_f2fs_reserve_new_block() {
-    return BeginNestedMessage<T>(252);
-  }
-
-
-  using FieldMetadata_F2fsSetPageDirty =
-    ::protozero::proto_utils::FieldMetadata<
-      253,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      F2fsSetPageDirtyFtraceEvent,
-      FtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_F2fsSetPageDirty kF2fsSetPageDirty() { return {}; }
-  template <typename T = F2fsSetPageDirtyFtraceEvent> T* set_f2fs_set_page_dirty() {
-    return BeginNestedMessage<T>(253);
-  }
-
-
-  using FieldMetadata_F2fsSubmitWritePage =
-    ::protozero::proto_utils::FieldMetadata<
-      254,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      F2fsSubmitWritePageFtraceEvent,
-      FtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_F2fsSubmitWritePage kF2fsSubmitWritePage() { return {}; }
-  template <typename T = F2fsSubmitWritePageFtraceEvent> T* set_f2fs_submit_write_page() {
-    return BeginNestedMessage<T>(254);
-  }
-
-
-  using FieldMetadata_F2fsSyncFileEnter =
-    ::protozero::proto_utils::FieldMetadata<
-      255,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      F2fsSyncFileEnterFtraceEvent,
-      FtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_F2fsSyncFileEnter kF2fsSyncFileEnter() { return {}; }
-  template <typename T = F2fsSyncFileEnterFtraceEvent> T* set_f2fs_sync_file_enter() {
-    return BeginNestedMessage<T>(255);
-  }
-
-
-  using FieldMetadata_F2fsSyncFileExit =
-    ::protozero::proto_utils::FieldMetadata<
-      256,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      F2fsSyncFileExitFtraceEvent,
-      FtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_F2fsSyncFileExit kF2fsSyncFileExit() { return {}; }
-  template <typename T = F2fsSyncFileExitFtraceEvent> T* set_f2fs_sync_file_exit() {
-    return BeginNestedMessage<T>(256);
-  }
-
-
-  using FieldMetadata_F2fsSyncFs =
-    ::protozero::proto_utils::FieldMetadata<
-      257,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      F2fsSyncFsFtraceEvent,
-      FtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_F2fsSyncFs kF2fsSyncFs() { return {}; }
-  template <typename T = F2fsSyncFsFtraceEvent> T* set_f2fs_sync_fs() {
-    return BeginNestedMessage<T>(257);
-  }
-
-
-  using FieldMetadata_F2fsTruncate =
-    ::protozero::proto_utils::FieldMetadata<
-      258,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      F2fsTruncateFtraceEvent,
-      FtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_F2fsTruncate kF2fsTruncate() { return {}; }
-  template <typename T = F2fsTruncateFtraceEvent> T* set_f2fs_truncate() {
-    return BeginNestedMessage<T>(258);
-  }
-
-
-  using FieldMetadata_F2fsTruncateBlocksEnter =
-    ::protozero::proto_utils::FieldMetadata<
-      259,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      F2fsTruncateBlocksEnterFtraceEvent,
-      FtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_F2fsTruncateBlocksEnter kF2fsTruncateBlocksEnter() { return {}; }
-  template <typename T = F2fsTruncateBlocksEnterFtraceEvent> T* set_f2fs_truncate_blocks_enter() {
-    return BeginNestedMessage<T>(259);
-  }
-
-
-  using FieldMetadata_F2fsTruncateBlocksExit =
-    ::protozero::proto_utils::FieldMetadata<
-      260,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      F2fsTruncateBlocksExitFtraceEvent,
-      FtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_F2fsTruncateBlocksExit kF2fsTruncateBlocksExit() { return {}; }
-  template <typename T = F2fsTruncateBlocksExitFtraceEvent> T* set_f2fs_truncate_blocks_exit() {
-    return BeginNestedMessage<T>(260);
-  }
-
-
-  using FieldMetadata_F2fsTruncateDataBlocksRange =
-    ::protozero::proto_utils::FieldMetadata<
-      261,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      F2fsTruncateDataBlocksRangeFtraceEvent,
-      FtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_F2fsTruncateDataBlocksRange kF2fsTruncateDataBlocksRange() { return {}; }
-  template <typename T = F2fsTruncateDataBlocksRangeFtraceEvent> T* set_f2fs_truncate_data_blocks_range() {
-    return BeginNestedMessage<T>(261);
-  }
-
-
-  using FieldMetadata_F2fsTruncateInodeBlocksEnter =
-    ::protozero::proto_utils::FieldMetadata<
-      262,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      F2fsTruncateInodeBlocksEnterFtraceEvent,
-      FtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_F2fsTruncateInodeBlocksEnter kF2fsTruncateInodeBlocksEnter() { return {}; }
-  template <typename T = F2fsTruncateInodeBlocksEnterFtraceEvent> T* set_f2fs_truncate_inode_blocks_enter() {
-    return BeginNestedMessage<T>(262);
-  }
-
-
-  using FieldMetadata_F2fsTruncateInodeBlocksExit =
-    ::protozero::proto_utils::FieldMetadata<
-      263,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      F2fsTruncateInodeBlocksExitFtraceEvent,
-      FtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_F2fsTruncateInodeBlocksExit kF2fsTruncateInodeBlocksExit() { return {}; }
-  template <typename T = F2fsTruncateInodeBlocksExitFtraceEvent> T* set_f2fs_truncate_inode_blocks_exit() {
-    return BeginNestedMessage<T>(263);
-  }
-
-
-  using FieldMetadata_F2fsTruncateNode =
-    ::protozero::proto_utils::FieldMetadata<
-      264,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      F2fsTruncateNodeFtraceEvent,
-      FtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_F2fsTruncateNode kF2fsTruncateNode() { return {}; }
-  template <typename T = F2fsTruncateNodeFtraceEvent> T* set_f2fs_truncate_node() {
-    return BeginNestedMessage<T>(264);
-  }
-
-
-  using FieldMetadata_F2fsTruncateNodesEnter =
-    ::protozero::proto_utils::FieldMetadata<
-      265,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      F2fsTruncateNodesEnterFtraceEvent,
-      FtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_F2fsTruncateNodesEnter kF2fsTruncateNodesEnter() { return {}; }
-  template <typename T = F2fsTruncateNodesEnterFtraceEvent> T* set_f2fs_truncate_nodes_enter() {
-    return BeginNestedMessage<T>(265);
-  }
-
-
-  using FieldMetadata_F2fsTruncateNodesExit =
-    ::protozero::proto_utils::FieldMetadata<
-      266,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      F2fsTruncateNodesExitFtraceEvent,
-      FtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_F2fsTruncateNodesExit kF2fsTruncateNodesExit() { return {}; }
-  template <typename T = F2fsTruncateNodesExitFtraceEvent> T* set_f2fs_truncate_nodes_exit() {
-    return BeginNestedMessage<T>(266);
-  }
-
-
-  using FieldMetadata_F2fsTruncatePartialNodes =
-    ::protozero::proto_utils::FieldMetadata<
-      267,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      F2fsTruncatePartialNodesFtraceEvent,
-      FtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_F2fsTruncatePartialNodes kF2fsTruncatePartialNodes() { return {}; }
-  template <typename T = F2fsTruncatePartialNodesFtraceEvent> T* set_f2fs_truncate_partial_nodes() {
-    return BeginNestedMessage<T>(267);
-  }
-
-
-  using FieldMetadata_F2fsUnlinkEnter =
-    ::protozero::proto_utils::FieldMetadata<
-      268,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      F2fsUnlinkEnterFtraceEvent,
-      FtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_F2fsUnlinkEnter kF2fsUnlinkEnter() { return {}; }
-  template <typename T = F2fsUnlinkEnterFtraceEvent> T* set_f2fs_unlink_enter() {
-    return BeginNestedMessage<T>(268);
-  }
-
-
-  using FieldMetadata_F2fsUnlinkExit =
-    ::protozero::proto_utils::FieldMetadata<
-      269,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      F2fsUnlinkExitFtraceEvent,
-      FtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_F2fsUnlinkExit kF2fsUnlinkExit() { return {}; }
-  template <typename T = F2fsUnlinkExitFtraceEvent> T* set_f2fs_unlink_exit() {
-    return BeginNestedMessage<T>(269);
-  }
-
-
-  using FieldMetadata_F2fsVmPageMkwrite =
-    ::protozero::proto_utils::FieldMetadata<
-      270,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      F2fsVmPageMkwriteFtraceEvent,
-      FtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_F2fsVmPageMkwrite kF2fsVmPageMkwrite() { return {}; }
-  template <typename T = F2fsVmPageMkwriteFtraceEvent> T* set_f2fs_vm_page_mkwrite() {
-    return BeginNestedMessage<T>(270);
-  }
-
-
-  using FieldMetadata_F2fsWriteBegin =
-    ::protozero::proto_utils::FieldMetadata<
-      271,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      F2fsWriteBeginFtraceEvent,
-      FtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_F2fsWriteBegin kF2fsWriteBegin() { return {}; }
-  template <typename T = F2fsWriteBeginFtraceEvent> T* set_f2fs_write_begin() {
-    return BeginNestedMessage<T>(271);
-  }
-
-
-  using FieldMetadata_F2fsWriteCheckpoint =
-    ::protozero::proto_utils::FieldMetadata<
-      272,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      F2fsWriteCheckpointFtraceEvent,
-      FtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_F2fsWriteCheckpoint kF2fsWriteCheckpoint() { return {}; }
-  template <typename T = F2fsWriteCheckpointFtraceEvent> T* set_f2fs_write_checkpoint() {
-    return BeginNestedMessage<T>(272);
-  }
-
-
-  using FieldMetadata_F2fsWriteEnd =
-    ::protozero::proto_utils::FieldMetadata<
-      273,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      F2fsWriteEndFtraceEvent,
-      FtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_F2fsWriteEnd kF2fsWriteEnd() { return {}; }
-  template <typename T = F2fsWriteEndFtraceEvent> T* set_f2fs_write_end() {
-    return BeginNestedMessage<T>(273);
-  }
-
-
-  using FieldMetadata_AllocPagesIommuEnd =
-    ::protozero::proto_utils::FieldMetadata<
-      274,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      AllocPagesIommuEndFtraceEvent,
-      FtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_AllocPagesIommuEnd kAllocPagesIommuEnd() { return {}; }
-  template <typename T = AllocPagesIommuEndFtraceEvent> T* set_alloc_pages_iommu_end() {
-    return BeginNestedMessage<T>(274);
-  }
-
-
-  using FieldMetadata_AllocPagesIommuFail =
-    ::protozero::proto_utils::FieldMetadata<
-      275,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      AllocPagesIommuFailFtraceEvent,
-      FtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_AllocPagesIommuFail kAllocPagesIommuFail() { return {}; }
-  template <typename T = AllocPagesIommuFailFtraceEvent> T* set_alloc_pages_iommu_fail() {
-    return BeginNestedMessage<T>(275);
-  }
-
-
-  using FieldMetadata_AllocPagesIommuStart =
-    ::protozero::proto_utils::FieldMetadata<
-      276,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      AllocPagesIommuStartFtraceEvent,
-      FtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_AllocPagesIommuStart kAllocPagesIommuStart() { return {}; }
-  template <typename T = AllocPagesIommuStartFtraceEvent> T* set_alloc_pages_iommu_start() {
-    return BeginNestedMessage<T>(276);
-  }
-
-
-  using FieldMetadata_AllocPagesSysEnd =
-    ::protozero::proto_utils::FieldMetadata<
-      277,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      AllocPagesSysEndFtraceEvent,
-      FtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_AllocPagesSysEnd kAllocPagesSysEnd() { return {}; }
-  template <typename T = AllocPagesSysEndFtraceEvent> T* set_alloc_pages_sys_end() {
-    return BeginNestedMessage<T>(277);
-  }
-
-
-  using FieldMetadata_AllocPagesSysFail =
-    ::protozero::proto_utils::FieldMetadata<
-      278,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      AllocPagesSysFailFtraceEvent,
-      FtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_AllocPagesSysFail kAllocPagesSysFail() { return {}; }
-  template <typename T = AllocPagesSysFailFtraceEvent> T* set_alloc_pages_sys_fail() {
-    return BeginNestedMessage<T>(278);
-  }
-
-
-  using FieldMetadata_AllocPagesSysStart =
-    ::protozero::proto_utils::FieldMetadata<
-      279,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      AllocPagesSysStartFtraceEvent,
-      FtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_AllocPagesSysStart kAllocPagesSysStart() { return {}; }
-  template <typename T = AllocPagesSysStartFtraceEvent> T* set_alloc_pages_sys_start() {
-    return BeginNestedMessage<T>(279);
-  }
-
-
-  using FieldMetadata_DmaAllocContiguousRetry =
-    ::protozero::proto_utils::FieldMetadata<
-      280,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      DmaAllocContiguousRetryFtraceEvent,
-      FtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_DmaAllocContiguousRetry kDmaAllocContiguousRetry() { return {}; }
-  template <typename T = DmaAllocContiguousRetryFtraceEvent> T* set_dma_alloc_contiguous_retry() {
-    return BeginNestedMessage<T>(280);
-  }
-
-
-  using FieldMetadata_IommuMapRange =
-    ::protozero::proto_utils::FieldMetadata<
-      281,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      IommuMapRangeFtraceEvent,
-      FtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_IommuMapRange kIommuMapRange() { return {}; }
-  template <typename T = IommuMapRangeFtraceEvent> T* set_iommu_map_range() {
-    return BeginNestedMessage<T>(281);
-  }
-
-
-  using FieldMetadata_IommuSecPtblMapRangeEnd =
-    ::protozero::proto_utils::FieldMetadata<
-      282,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      IommuSecPtblMapRangeEndFtraceEvent,
-      FtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_IommuSecPtblMapRangeEnd kIommuSecPtblMapRangeEnd() { return {}; }
-  template <typename T = IommuSecPtblMapRangeEndFtraceEvent> T* set_iommu_sec_ptbl_map_range_end() {
-    return BeginNestedMessage<T>(282);
-  }
-
-
-  using FieldMetadata_IommuSecPtblMapRangeStart =
-    ::protozero::proto_utils::FieldMetadata<
-      283,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      IommuSecPtblMapRangeStartFtraceEvent,
-      FtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_IommuSecPtblMapRangeStart kIommuSecPtblMapRangeStart() { return {}; }
-  template <typename T = IommuSecPtblMapRangeStartFtraceEvent> T* set_iommu_sec_ptbl_map_range_start() {
-    return BeginNestedMessage<T>(283);
-  }
-
-
-  using FieldMetadata_IonAllocBufferEnd =
-    ::protozero::proto_utils::FieldMetadata<
-      284,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      IonAllocBufferEndFtraceEvent,
-      FtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_IonAllocBufferEnd kIonAllocBufferEnd() { return {}; }
-  template <typename T = IonAllocBufferEndFtraceEvent> T* set_ion_alloc_buffer_end() {
-    return BeginNestedMessage<T>(284);
-  }
-
-
-  using FieldMetadata_IonAllocBufferFail =
-    ::protozero::proto_utils::FieldMetadata<
-      285,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      IonAllocBufferFailFtraceEvent,
-      FtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_IonAllocBufferFail kIonAllocBufferFail() { return {}; }
-  template <typename T = IonAllocBufferFailFtraceEvent> T* set_ion_alloc_buffer_fail() {
-    return BeginNestedMessage<T>(285);
-  }
-
-
-  using FieldMetadata_IonAllocBufferFallback =
-    ::protozero::proto_utils::FieldMetadata<
-      286,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      IonAllocBufferFallbackFtraceEvent,
-      FtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_IonAllocBufferFallback kIonAllocBufferFallback() { return {}; }
-  template <typename T = IonAllocBufferFallbackFtraceEvent> T* set_ion_alloc_buffer_fallback() {
-    return BeginNestedMessage<T>(286);
-  }
-
-
-  using FieldMetadata_IonAllocBufferStart =
-    ::protozero::proto_utils::FieldMetadata<
-      287,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      IonAllocBufferStartFtraceEvent,
-      FtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_IonAllocBufferStart kIonAllocBufferStart() { return {}; }
-  template <typename T = IonAllocBufferStartFtraceEvent> T* set_ion_alloc_buffer_start() {
-    return BeginNestedMessage<T>(287);
-  }
-
-
-  using FieldMetadata_IonCpAllocRetry =
-    ::protozero::proto_utils::FieldMetadata<
-      288,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      IonCpAllocRetryFtraceEvent,
-      FtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_IonCpAllocRetry kIonCpAllocRetry() { return {}; }
-  template <typename T = IonCpAllocRetryFtraceEvent> T* set_ion_cp_alloc_retry() {
-    return BeginNestedMessage<T>(288);
-  }
-
-
-  using FieldMetadata_IonCpSecureBufferEnd =
-    ::protozero::proto_utils::FieldMetadata<
-      289,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      IonCpSecureBufferEndFtraceEvent,
-      FtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_IonCpSecureBufferEnd kIonCpSecureBufferEnd() { return {}; }
-  template <typename T = IonCpSecureBufferEndFtraceEvent> T* set_ion_cp_secure_buffer_end() {
-    return BeginNestedMessage<T>(289);
-  }
-
-
-  using FieldMetadata_IonCpSecureBufferStart =
-    ::protozero::proto_utils::FieldMetadata<
-      290,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      IonCpSecureBufferStartFtraceEvent,
-      FtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_IonCpSecureBufferStart kIonCpSecureBufferStart() { return {}; }
-  template <typename T = IonCpSecureBufferStartFtraceEvent> T* set_ion_cp_secure_buffer_start() {
-    return BeginNestedMessage<T>(290);
-  }
-
-
-  using FieldMetadata_IonPrefetching =
-    ::protozero::proto_utils::FieldMetadata<
-      291,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      IonPrefetchingFtraceEvent,
-      FtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_IonPrefetching kIonPrefetching() { return {}; }
-  template <typename T = IonPrefetchingFtraceEvent> T* set_ion_prefetching() {
-    return BeginNestedMessage<T>(291);
-  }
-
-
-  using FieldMetadata_IonSecureCmaAddToPoolEnd =
-    ::protozero::proto_utils::FieldMetadata<
-      292,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      IonSecureCmaAddToPoolEndFtraceEvent,
-      FtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_IonSecureCmaAddToPoolEnd kIonSecureCmaAddToPoolEnd() { return {}; }
-  template <typename T = IonSecureCmaAddToPoolEndFtraceEvent> T* set_ion_secure_cma_add_to_pool_end() {
-    return BeginNestedMessage<T>(292);
-  }
-
-
-  using FieldMetadata_IonSecureCmaAddToPoolStart =
-    ::protozero::proto_utils::FieldMetadata<
-      293,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      IonSecureCmaAddToPoolStartFtraceEvent,
-      FtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_IonSecureCmaAddToPoolStart kIonSecureCmaAddToPoolStart() { return {}; }
-  template <typename T = IonSecureCmaAddToPoolStartFtraceEvent> T* set_ion_secure_cma_add_to_pool_start() {
-    return BeginNestedMessage<T>(293);
-  }
-
-
-  using FieldMetadata_IonSecureCmaAllocateEnd =
-    ::protozero::proto_utils::FieldMetadata<
-      294,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      IonSecureCmaAllocateEndFtraceEvent,
-      FtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_IonSecureCmaAllocateEnd kIonSecureCmaAllocateEnd() { return {}; }
-  template <typename T = IonSecureCmaAllocateEndFtraceEvent> T* set_ion_secure_cma_allocate_end() {
-    return BeginNestedMessage<T>(294);
-  }
-
-
-  using FieldMetadata_IonSecureCmaAllocateStart =
-    ::protozero::proto_utils::FieldMetadata<
-      295,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      IonSecureCmaAllocateStartFtraceEvent,
-      FtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_IonSecureCmaAllocateStart kIonSecureCmaAllocateStart() { return {}; }
-  template <typename T = IonSecureCmaAllocateStartFtraceEvent> T* set_ion_secure_cma_allocate_start() {
-    return BeginNestedMessage<T>(295);
-  }
-
-
-  using FieldMetadata_IonSecureCmaShrinkPoolEnd =
-    ::protozero::proto_utils::FieldMetadata<
-      296,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      IonSecureCmaShrinkPoolEndFtraceEvent,
-      FtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_IonSecureCmaShrinkPoolEnd kIonSecureCmaShrinkPoolEnd() { return {}; }
-  template <typename T = IonSecureCmaShrinkPoolEndFtraceEvent> T* set_ion_secure_cma_shrink_pool_end() {
-    return BeginNestedMessage<T>(296);
-  }
-
-
-  using FieldMetadata_IonSecureCmaShrinkPoolStart =
-    ::protozero::proto_utils::FieldMetadata<
-      297,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      IonSecureCmaShrinkPoolStartFtraceEvent,
-      FtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_IonSecureCmaShrinkPoolStart kIonSecureCmaShrinkPoolStart() { return {}; }
-  template <typename T = IonSecureCmaShrinkPoolStartFtraceEvent> T* set_ion_secure_cma_shrink_pool_start() {
-    return BeginNestedMessage<T>(297);
-  }
-
-
-  using FieldMetadata_Kfree =
-    ::protozero::proto_utils::FieldMetadata<
-      298,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      KfreeFtraceEvent,
-      FtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Kfree kKfree() { return {}; }
-  template <typename T = KfreeFtraceEvent> T* set_kfree() {
-    return BeginNestedMessage<T>(298);
-  }
-
-
-  using FieldMetadata_Kmalloc =
-    ::protozero::proto_utils::FieldMetadata<
-      299,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      KmallocFtraceEvent,
-      FtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Kmalloc kKmalloc() { return {}; }
-  template <typename T = KmallocFtraceEvent> T* set_kmalloc() {
-    return BeginNestedMessage<T>(299);
-  }
-
-
-  using FieldMetadata_KmallocNode =
-    ::protozero::proto_utils::FieldMetadata<
-      300,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      KmallocNodeFtraceEvent,
-      FtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_KmallocNode kKmallocNode() { return {}; }
-  template <typename T = KmallocNodeFtraceEvent> T* set_kmalloc_node() {
-    return BeginNestedMessage<T>(300);
-  }
-
-
-  using FieldMetadata_KmemCacheAlloc =
-    ::protozero::proto_utils::FieldMetadata<
-      301,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      KmemCacheAllocFtraceEvent,
-      FtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_KmemCacheAlloc kKmemCacheAlloc() { return {}; }
-  template <typename T = KmemCacheAllocFtraceEvent> T* set_kmem_cache_alloc() {
-    return BeginNestedMessage<T>(301);
-  }
-
-
-  using FieldMetadata_KmemCacheAllocNode =
-    ::protozero::proto_utils::FieldMetadata<
-      302,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      KmemCacheAllocNodeFtraceEvent,
-      FtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_KmemCacheAllocNode kKmemCacheAllocNode() { return {}; }
-  template <typename T = KmemCacheAllocNodeFtraceEvent> T* set_kmem_cache_alloc_node() {
-    return BeginNestedMessage<T>(302);
-  }
-
-
-  using FieldMetadata_KmemCacheFree =
-    ::protozero::proto_utils::FieldMetadata<
-      303,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      KmemCacheFreeFtraceEvent,
-      FtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_KmemCacheFree kKmemCacheFree() { return {}; }
-  template <typename T = KmemCacheFreeFtraceEvent> T* set_kmem_cache_free() {
-    return BeginNestedMessage<T>(303);
-  }
-
-
-  using FieldMetadata_MigratePagesEnd =
-    ::protozero::proto_utils::FieldMetadata<
-      304,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      MigratePagesEndFtraceEvent,
-      FtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_MigratePagesEnd kMigratePagesEnd() { return {}; }
-  template <typename T = MigratePagesEndFtraceEvent> T* set_migrate_pages_end() {
-    return BeginNestedMessage<T>(304);
-  }
-
-
-  using FieldMetadata_MigratePagesStart =
-    ::protozero::proto_utils::FieldMetadata<
-      305,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      MigratePagesStartFtraceEvent,
-      FtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_MigratePagesStart kMigratePagesStart() { return {}; }
-  template <typename T = MigratePagesStartFtraceEvent> T* set_migrate_pages_start() {
-    return BeginNestedMessage<T>(305);
-  }
-
-
-  using FieldMetadata_MigrateRetry =
-    ::protozero::proto_utils::FieldMetadata<
-      306,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      MigrateRetryFtraceEvent,
-      FtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_MigrateRetry kMigrateRetry() { return {}; }
-  template <typename T = MigrateRetryFtraceEvent> T* set_migrate_retry() {
-    return BeginNestedMessage<T>(306);
-  }
-
-
-  using FieldMetadata_MmPageAlloc =
-    ::protozero::proto_utils::FieldMetadata<
-      307,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      MmPageAllocFtraceEvent,
-      FtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_MmPageAlloc kMmPageAlloc() { return {}; }
-  template <typename T = MmPageAllocFtraceEvent> T* set_mm_page_alloc() {
-    return BeginNestedMessage<T>(307);
-  }
-
-
-  using FieldMetadata_MmPageAllocExtfrag =
-    ::protozero::proto_utils::FieldMetadata<
-      308,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      MmPageAllocExtfragFtraceEvent,
-      FtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_MmPageAllocExtfrag kMmPageAllocExtfrag() { return {}; }
-  template <typename T = MmPageAllocExtfragFtraceEvent> T* set_mm_page_alloc_extfrag() {
-    return BeginNestedMessage<T>(308);
-  }
-
-
-  using FieldMetadata_MmPageAllocZoneLocked =
-    ::protozero::proto_utils::FieldMetadata<
-      309,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      MmPageAllocZoneLockedFtraceEvent,
-      FtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_MmPageAllocZoneLocked kMmPageAllocZoneLocked() { return {}; }
-  template <typename T = MmPageAllocZoneLockedFtraceEvent> T* set_mm_page_alloc_zone_locked() {
-    return BeginNestedMessage<T>(309);
-  }
-
-
-  using FieldMetadata_MmPageFree =
-    ::protozero::proto_utils::FieldMetadata<
-      310,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      MmPageFreeFtraceEvent,
-      FtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_MmPageFree kMmPageFree() { return {}; }
-  template <typename T = MmPageFreeFtraceEvent> T* set_mm_page_free() {
-    return BeginNestedMessage<T>(310);
-  }
-
-
-  using FieldMetadata_MmPageFreeBatched =
-    ::protozero::proto_utils::FieldMetadata<
-      311,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      MmPageFreeBatchedFtraceEvent,
-      FtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_MmPageFreeBatched kMmPageFreeBatched() { return {}; }
-  template <typename T = MmPageFreeBatchedFtraceEvent> T* set_mm_page_free_batched() {
-    return BeginNestedMessage<T>(311);
-  }
-
-
-  using FieldMetadata_MmPagePcpuDrain =
-    ::protozero::proto_utils::FieldMetadata<
-      312,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      MmPagePcpuDrainFtraceEvent,
-      FtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_MmPagePcpuDrain kMmPagePcpuDrain() { return {}; }
-  template <typename T = MmPagePcpuDrainFtraceEvent> T* set_mm_page_pcpu_drain() {
-    return BeginNestedMessage<T>(312);
-  }
-
-
-  using FieldMetadata_RssStat =
-    ::protozero::proto_utils::FieldMetadata<
-      313,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      RssStatFtraceEvent,
-      FtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_RssStat kRssStat() { return {}; }
-  template <typename T = RssStatFtraceEvent> T* set_rss_stat() {
-    return BeginNestedMessage<T>(313);
-  }
-
-
-  using FieldMetadata_IonHeapShrink =
-    ::protozero::proto_utils::FieldMetadata<
-      314,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      IonHeapShrinkFtraceEvent,
-      FtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_IonHeapShrink kIonHeapShrink() { return {}; }
-  template <typename T = IonHeapShrinkFtraceEvent> T* set_ion_heap_shrink() {
-    return BeginNestedMessage<T>(314);
-  }
-
-
-  using FieldMetadata_IonHeapGrow =
-    ::protozero::proto_utils::FieldMetadata<
-      315,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      IonHeapGrowFtraceEvent,
-      FtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_IonHeapGrow kIonHeapGrow() { return {}; }
-  template <typename T = IonHeapGrowFtraceEvent> T* set_ion_heap_grow() {
-    return BeginNestedMessage<T>(315);
-  }
-
-
-  using FieldMetadata_FenceInit =
-    ::protozero::proto_utils::FieldMetadata<
-      316,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      FenceInitFtraceEvent,
-      FtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_FenceInit kFenceInit() { return {}; }
-  template <typename T = FenceInitFtraceEvent> T* set_fence_init() {
-    return BeginNestedMessage<T>(316);
-  }
-
-
-  using FieldMetadata_FenceDestroy =
-    ::protozero::proto_utils::FieldMetadata<
-      317,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      FenceDestroyFtraceEvent,
-      FtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_FenceDestroy kFenceDestroy() { return {}; }
-  template <typename T = FenceDestroyFtraceEvent> T* set_fence_destroy() {
-    return BeginNestedMessage<T>(317);
-  }
-
-
-  using FieldMetadata_FenceEnableSignal =
-    ::protozero::proto_utils::FieldMetadata<
-      318,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      FenceEnableSignalFtraceEvent,
-      FtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_FenceEnableSignal kFenceEnableSignal() { return {}; }
-  template <typename T = FenceEnableSignalFtraceEvent> T* set_fence_enable_signal() {
-    return BeginNestedMessage<T>(318);
-  }
-
-
-  using FieldMetadata_FenceSignaled =
-    ::protozero::proto_utils::FieldMetadata<
-      319,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      FenceSignaledFtraceEvent,
-      FtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_FenceSignaled kFenceSignaled() { return {}; }
-  template <typename T = FenceSignaledFtraceEvent> T* set_fence_signaled() {
-    return BeginNestedMessage<T>(319);
-  }
-
-
-  using FieldMetadata_ClkEnable =
-    ::protozero::proto_utils::FieldMetadata<
-      320,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      ClkEnableFtraceEvent,
-      FtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_ClkEnable kClkEnable() { return {}; }
-  template <typename T = ClkEnableFtraceEvent> T* set_clk_enable() {
-    return BeginNestedMessage<T>(320);
-  }
-
-
-  using FieldMetadata_ClkDisable =
-    ::protozero::proto_utils::FieldMetadata<
-      321,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      ClkDisableFtraceEvent,
-      FtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_ClkDisable kClkDisable() { return {}; }
-  template <typename T = ClkDisableFtraceEvent> T* set_clk_disable() {
-    return BeginNestedMessage<T>(321);
-  }
-
-
-  using FieldMetadata_ClkSetRate =
-    ::protozero::proto_utils::FieldMetadata<
-      322,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      ClkSetRateFtraceEvent,
-      FtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_ClkSetRate kClkSetRate() { return {}; }
-  template <typename T = ClkSetRateFtraceEvent> T* set_clk_set_rate() {
-    return BeginNestedMessage<T>(322);
-  }
-
-
-  using FieldMetadata_BinderTransactionAllocBuf =
-    ::protozero::proto_utils::FieldMetadata<
-      323,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      BinderTransactionAllocBufFtraceEvent,
-      FtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_BinderTransactionAllocBuf kBinderTransactionAllocBuf() { return {}; }
-  template <typename T = BinderTransactionAllocBufFtraceEvent> T* set_binder_transaction_alloc_buf() {
-    return BeginNestedMessage<T>(323);
-  }
-
-
-  using FieldMetadata_SignalDeliver =
-    ::protozero::proto_utils::FieldMetadata<
-      324,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      SignalDeliverFtraceEvent,
-      FtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_SignalDeliver kSignalDeliver() { return {}; }
-  template <typename T = SignalDeliverFtraceEvent> T* set_signal_deliver() {
-    return BeginNestedMessage<T>(324);
-  }
-
-
-  using FieldMetadata_SignalGenerate =
-    ::protozero::proto_utils::FieldMetadata<
-      325,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      SignalGenerateFtraceEvent,
-      FtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_SignalGenerate kSignalGenerate() { return {}; }
-  template <typename T = SignalGenerateFtraceEvent> T* set_signal_generate() {
-    return BeginNestedMessage<T>(325);
-  }
-
-
-  using FieldMetadata_OomScoreAdjUpdate =
-    ::protozero::proto_utils::FieldMetadata<
-      326,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      OomScoreAdjUpdateFtraceEvent,
-      FtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_OomScoreAdjUpdate kOomScoreAdjUpdate() { return {}; }
-  template <typename T = OomScoreAdjUpdateFtraceEvent> T* set_oom_score_adj_update() {
-    return BeginNestedMessage<T>(326);
-  }
-
-
-  using FieldMetadata_Generic =
-    ::protozero::proto_utils::FieldMetadata<
-      327,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      GenericFtraceEvent,
-      FtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Generic kGeneric() { return {}; }
-  template <typename T = GenericFtraceEvent> T* set_generic() {
-    return BeginNestedMessage<T>(327);
-  }
-
-
-  using FieldMetadata_MmEventRecord =
-    ::protozero::proto_utils::FieldMetadata<
-      328,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      MmEventRecordFtraceEvent,
-      FtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_MmEventRecord kMmEventRecord() { return {}; }
-  template <typename T = MmEventRecordFtraceEvent> T* set_mm_event_record() {
-    return BeginNestedMessage<T>(328);
-  }
-
-
-  using FieldMetadata_SysEnter =
-    ::protozero::proto_utils::FieldMetadata<
-      329,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      SysEnterFtraceEvent,
-      FtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_SysEnter kSysEnter() { return {}; }
-  template <typename T = SysEnterFtraceEvent> T* set_sys_enter() {
-    return BeginNestedMessage<T>(329);
-  }
-
-
-  using FieldMetadata_SysExit =
-    ::protozero::proto_utils::FieldMetadata<
-      330,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      SysExitFtraceEvent,
-      FtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_SysExit kSysExit() { return {}; }
-  template <typename T = SysExitFtraceEvent> T* set_sys_exit() {
-    return BeginNestedMessage<T>(330);
-  }
-
-
-  using FieldMetadata_Zero =
-    ::protozero::proto_utils::FieldMetadata<
-      331,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      ZeroFtraceEvent,
-      FtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Zero kZero() { return {}; }
-  template <typename T = ZeroFtraceEvent> T* set_zero() {
-    return BeginNestedMessage<T>(331);
-  }
-
-
-  using FieldMetadata_GpuFrequency =
-    ::protozero::proto_utils::FieldMetadata<
-      332,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      GpuFrequencyFtraceEvent,
-      FtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_GpuFrequency kGpuFrequency() { return {}; }
-  template <typename T = GpuFrequencyFtraceEvent> T* set_gpu_frequency() {
-    return BeginNestedMessage<T>(332);
-  }
-
-
-  using FieldMetadata_SdeTracingMarkWrite =
-    ::protozero::proto_utils::FieldMetadata<
-      333,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      SdeTracingMarkWriteFtraceEvent,
-      FtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_SdeTracingMarkWrite kSdeTracingMarkWrite() { return {}; }
-  template <typename T = SdeTracingMarkWriteFtraceEvent> T* set_sde_tracing_mark_write() {
-    return BeginNestedMessage<T>(333);
-  }
-
-
-  using FieldMetadata_MarkVictim =
-    ::protozero::proto_utils::FieldMetadata<
-      334,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      MarkVictimFtraceEvent,
-      FtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_MarkVictim kMarkVictim() { return {}; }
-  template <typename T = MarkVictimFtraceEvent> T* set_mark_victim() {
-    return BeginNestedMessage<T>(334);
-  }
-
-
-  using FieldMetadata_IonStat =
-    ::protozero::proto_utils::FieldMetadata<
-      335,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      IonStatFtraceEvent,
-      FtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_IonStat kIonStat() { return {}; }
-  template <typename T = IonStatFtraceEvent> T* set_ion_stat() {
-    return BeginNestedMessage<T>(335);
-  }
-
-
-  using FieldMetadata_IonBufferCreate =
-    ::protozero::proto_utils::FieldMetadata<
-      336,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      IonBufferCreateFtraceEvent,
-      FtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_IonBufferCreate kIonBufferCreate() { return {}; }
-  template <typename T = IonBufferCreateFtraceEvent> T* set_ion_buffer_create() {
-    return BeginNestedMessage<T>(336);
-  }
-
-
-  using FieldMetadata_IonBufferDestroy =
-    ::protozero::proto_utils::FieldMetadata<
-      337,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      IonBufferDestroyFtraceEvent,
-      FtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_IonBufferDestroy kIonBufferDestroy() { return {}; }
-  template <typename T = IonBufferDestroyFtraceEvent> T* set_ion_buffer_destroy() {
-    return BeginNestedMessage<T>(337);
-  }
-
-
-  using FieldMetadata_ScmCallStart =
-    ::protozero::proto_utils::FieldMetadata<
-      338,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      ScmCallStartFtraceEvent,
-      FtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_ScmCallStart kScmCallStart() { return {}; }
-  template <typename T = ScmCallStartFtraceEvent> T* set_scm_call_start() {
-    return BeginNestedMessage<T>(338);
-  }
-
-
-  using FieldMetadata_ScmCallEnd =
-    ::protozero::proto_utils::FieldMetadata<
-      339,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      ScmCallEndFtraceEvent,
-      FtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_ScmCallEnd kScmCallEnd() { return {}; }
-  template <typename T = ScmCallEndFtraceEvent> T* set_scm_call_end() {
-    return BeginNestedMessage<T>(339);
-  }
-
-
-  using FieldMetadata_GpuMemTotal =
-    ::protozero::proto_utils::FieldMetadata<
-      340,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      GpuMemTotalFtraceEvent,
-      FtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_GpuMemTotal kGpuMemTotal() { return {}; }
-  template <typename T = GpuMemTotalFtraceEvent> T* set_gpu_mem_total() {
-    return BeginNestedMessage<T>(340);
-  }
-
-
-  using FieldMetadata_ThermalTemperature =
-    ::protozero::proto_utils::FieldMetadata<
-      341,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      ThermalTemperatureFtraceEvent,
-      FtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_ThermalTemperature kThermalTemperature() { return {}; }
-  template <typename T = ThermalTemperatureFtraceEvent> T* set_thermal_temperature() {
-    return BeginNestedMessage<T>(341);
-  }
-
-
-  using FieldMetadata_CdevUpdate =
-    ::protozero::proto_utils::FieldMetadata<
-      342,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      CdevUpdateFtraceEvent,
-      FtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_CdevUpdate kCdevUpdate() { return {}; }
-  template <typename T = CdevUpdateFtraceEvent> T* set_cdev_update() {
-    return BeginNestedMessage<T>(342);
-  }
-
-
-  using FieldMetadata_CpuhpExit =
-    ::protozero::proto_utils::FieldMetadata<
-      343,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      CpuhpExitFtraceEvent,
-      FtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_CpuhpExit kCpuhpExit() { return {}; }
-  template <typename T = CpuhpExitFtraceEvent> T* set_cpuhp_exit() {
-    return BeginNestedMessage<T>(343);
-  }
-
-
-  using FieldMetadata_CpuhpMultiEnter =
-    ::protozero::proto_utils::FieldMetadata<
-      344,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      CpuhpMultiEnterFtraceEvent,
-      FtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_CpuhpMultiEnter kCpuhpMultiEnter() { return {}; }
-  template <typename T = CpuhpMultiEnterFtraceEvent> T* set_cpuhp_multi_enter() {
-    return BeginNestedMessage<T>(344);
-  }
-
-
-  using FieldMetadata_CpuhpEnter =
-    ::protozero::proto_utils::FieldMetadata<
-      345,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      CpuhpEnterFtraceEvent,
-      FtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_CpuhpEnter kCpuhpEnter() { return {}; }
-  template <typename T = CpuhpEnterFtraceEvent> T* set_cpuhp_enter() {
-    return BeginNestedMessage<T>(345);
-  }
-
-
-  using FieldMetadata_CpuhpLatency =
-    ::protozero::proto_utils::FieldMetadata<
-      346,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      CpuhpLatencyFtraceEvent,
-      FtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_CpuhpLatency kCpuhpLatency() { return {}; }
-  template <typename T = CpuhpLatencyFtraceEvent> T* set_cpuhp_latency() {
-    return BeginNestedMessage<T>(346);
-  }
-
-
-  using FieldMetadata_FastrpcDmaStat =
-    ::protozero::proto_utils::FieldMetadata<
-      347,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      FastrpcDmaStatFtraceEvent,
-      FtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_FastrpcDmaStat kFastrpcDmaStat() { return {}; }
-  template <typename T = FastrpcDmaStatFtraceEvent> T* set_fastrpc_dma_stat() {
-    return BeginNestedMessage<T>(347);
-  }
-
-
-  using FieldMetadata_DpuTracingMarkWrite =
-    ::protozero::proto_utils::FieldMetadata<
-      348,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      DpuTracingMarkWriteFtraceEvent,
-      FtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_DpuTracingMarkWrite kDpuTracingMarkWrite() { return {}; }
-  template <typename T = DpuTracingMarkWriteFtraceEvent> T* set_dpu_tracing_mark_write() {
-    return BeginNestedMessage<T>(348);
-  }
-
-
-  using FieldMetadata_G2dTracingMarkWrite =
-    ::protozero::proto_utils::FieldMetadata<
-      349,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      G2dTracingMarkWriteFtraceEvent,
-      FtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_G2dTracingMarkWrite kG2dTracingMarkWrite() { return {}; }
-  template <typename T = G2dTracingMarkWriteFtraceEvent> T* set_g2d_tracing_mark_write() {
-    return BeginNestedMessage<T>(349);
-  }
-
-
-  using FieldMetadata_MaliTracingMarkWrite =
-    ::protozero::proto_utils::FieldMetadata<
-      350,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      MaliTracingMarkWriteFtraceEvent,
-      FtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_MaliTracingMarkWrite kMaliTracingMarkWrite() { return {}; }
-  template <typename T = MaliTracingMarkWriteFtraceEvent> T* set_mali_tracing_mark_write() {
-    return BeginNestedMessage<T>(350);
-  }
-
-
-  using FieldMetadata_DmaHeapStat =
-    ::protozero::proto_utils::FieldMetadata<
-      351,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      DmaHeapStatFtraceEvent,
-      FtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_DmaHeapStat kDmaHeapStat() { return {}; }
-  template <typename T = DmaHeapStatFtraceEvent> T* set_dma_heap_stat() {
-    return BeginNestedMessage<T>(351);
-  }
-
-
-  using FieldMetadata_CpuhpPause =
-    ::protozero::proto_utils::FieldMetadata<
-      352,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      CpuhpPauseFtraceEvent,
-      FtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_CpuhpPause kCpuhpPause() { return {}; }
-  template <typename T = CpuhpPauseFtraceEvent> T* set_cpuhp_pause() {
-    return BeginNestedMessage<T>(352);
-  }
-
-
-  using FieldMetadata_SchedPiSetprio =
-    ::protozero::proto_utils::FieldMetadata<
-      353,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      SchedPiSetprioFtraceEvent,
-      FtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_SchedPiSetprio kSchedPiSetprio() { return {}; }
-  template <typename T = SchedPiSetprioFtraceEvent> T* set_sched_pi_setprio() {
-    return BeginNestedMessage<T>(353);
-  }
-
-
-  using FieldMetadata_SdeSdeEvtlog =
-    ::protozero::proto_utils::FieldMetadata<
-      354,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      SdeSdeEvtlogFtraceEvent,
-      FtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_SdeSdeEvtlog kSdeSdeEvtlog() { return {}; }
-  template <typename T = SdeSdeEvtlogFtraceEvent> T* set_sde_sde_evtlog() {
-    return BeginNestedMessage<T>(354);
-  }
-
-
-  using FieldMetadata_SdeSdePerfCalcCrtc =
-    ::protozero::proto_utils::FieldMetadata<
-      355,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      SdeSdePerfCalcCrtcFtraceEvent,
-      FtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_SdeSdePerfCalcCrtc kSdeSdePerfCalcCrtc() { return {}; }
-  template <typename T = SdeSdePerfCalcCrtcFtraceEvent> T* set_sde_sde_perf_calc_crtc() {
-    return BeginNestedMessage<T>(355);
-  }
-
-
-  using FieldMetadata_SdeSdePerfCrtcUpdate =
-    ::protozero::proto_utils::FieldMetadata<
-      356,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      SdeSdePerfCrtcUpdateFtraceEvent,
-      FtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_SdeSdePerfCrtcUpdate kSdeSdePerfCrtcUpdate() { return {}; }
-  template <typename T = SdeSdePerfCrtcUpdateFtraceEvent> T* set_sde_sde_perf_crtc_update() {
-    return BeginNestedMessage<T>(356);
-  }
-
-
-  using FieldMetadata_SdeSdePerfSetQosLuts =
-    ::protozero::proto_utils::FieldMetadata<
-      357,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      SdeSdePerfSetQosLutsFtraceEvent,
-      FtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_SdeSdePerfSetQosLuts kSdeSdePerfSetQosLuts() { return {}; }
-  template <typename T = SdeSdePerfSetQosLutsFtraceEvent> T* set_sde_sde_perf_set_qos_luts() {
-    return BeginNestedMessage<T>(357);
-  }
-
-
-  using FieldMetadata_SdeSdePerfUpdateBus =
-    ::protozero::proto_utils::FieldMetadata<
-      358,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      SdeSdePerfUpdateBusFtraceEvent,
-      FtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_SdeSdePerfUpdateBus kSdeSdePerfUpdateBus() { return {}; }
-  template <typename T = SdeSdePerfUpdateBusFtraceEvent> T* set_sde_sde_perf_update_bus() {
-    return BeginNestedMessage<T>(358);
-  }
-
-};
-
-} // Namespace.
-} // Namespace.
-} // Namespace.
-#endif  // Include guard.
-// gen_amalgamated begin header: gen/protos/perfetto/trace/ftrace/ftrace_event_bundle.pbzero.h
-// Autogenerated by the ProtoZero compiler plugin. DO NOT EDIT.
-
-#ifndef PERFETTO_PROTOS_PROTOS_PERFETTO_TRACE_FTRACE_FTRACE_EVENT_BUNDLE_PROTO_H_
-#define PERFETTO_PROTOS_PROTOS_PERFETTO_TRACE_FTRACE_FTRACE_EVENT_BUNDLE_PROTO_H_
-
-#include <stddef.h>
-#include <stdint.h>
-
-// gen_amalgamated expanded: #include "perfetto/protozero/field_writer.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/message.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/packed_repeated_fields.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/proto_decoder.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/proto_utils.h"
-
-namespace perfetto {
-namespace protos {
-namespace pbzero {
-
-class FtraceEvent;
-class FtraceEventBundle_CompactSched;
-
-class FtraceEventBundle_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/4, /*HAS_NONPACKED_REPEATED_FIELDS=*/true> {
- public:
-  FtraceEventBundle_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit FtraceEventBundle_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit FtraceEventBundle_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_cpu() const { return at<1>().valid(); }
-  uint32_t cpu() const { return at<1>().as_uint32(); }
-  bool has_event() const { return at<2>().valid(); }
-  ::protozero::RepeatedFieldIterator<::protozero::ConstBytes> event() const { return GetRepeated<::protozero::ConstBytes>(2); }
-  bool has_lost_events() const { return at<3>().valid(); }
-  bool lost_events() const { return at<3>().as_bool(); }
-  bool has_compact_sched() const { return at<4>().valid(); }
-  ::protozero::ConstBytes compact_sched() const { return at<4>().as_bytes(); }
-};
-
-class FtraceEventBundle : public ::protozero::Message {
- public:
-  using Decoder = FtraceEventBundle_Decoder;
-  enum : int32_t {
-    kCpuFieldNumber = 1,
-    kEventFieldNumber = 2,
-    kLostEventsFieldNumber = 3,
-    kCompactSchedFieldNumber = 4,
-  };
-  using CompactSched = ::perfetto::protos::pbzero::FtraceEventBundle_CompactSched;
-
-  using FieldMetadata_Cpu =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      FtraceEventBundle>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Cpu kCpu() { return {}; }
-  void set_cpu(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Cpu::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Event =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kRepeatedNotPacked,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      FtraceEvent,
-      FtraceEventBundle>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Event kEvent() { return {}; }
-  template <typename T = FtraceEvent> T* add_event() {
-    return BeginNestedMessage<T>(2);
-  }
-
-
-  using FieldMetadata_LostEvents =
-    ::protozero::proto_utils::FieldMetadata<
-      3,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kBool,
-      bool,
-      FtraceEventBundle>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_LostEvents kLostEvents() { return {}; }
-  void set_lost_events(bool value) {
-    static constexpr uint32_t field_id = FieldMetadata_LostEvents::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kBool>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_CompactSched =
-    ::protozero::proto_utils::FieldMetadata<
-      4,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      FtraceEventBundle_CompactSched,
-      FtraceEventBundle>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_CompactSched kCompactSched() { return {}; }
-  template <typename T = FtraceEventBundle_CompactSched> T* set_compact_sched() {
-    return BeginNestedMessage<T>(4);
-  }
-
-};
-
-class FtraceEventBundle_CompactSched_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/11, /*HAS_NONPACKED_REPEATED_FIELDS=*/true> {
- public:
-  FtraceEventBundle_CompactSched_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit FtraceEventBundle_CompactSched_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit FtraceEventBundle_CompactSched_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_intern_table() const { return at<5>().valid(); }
-  ::protozero::RepeatedFieldIterator<::protozero::ConstChars> intern_table() const { return GetRepeated<::protozero::ConstChars>(5); }
-  bool has_switch_timestamp() const { return at<1>().valid(); }
-  ::protozero::PackedRepeatedFieldIterator<::protozero::proto_utils::ProtoWireType::kVarInt, uint64_t> switch_timestamp(bool* parse_error_ptr) const { return GetPackedRepeated<::protozero::proto_utils::ProtoWireType::kVarInt, uint64_t>(1, parse_error_ptr); }
-  bool has_switch_prev_state() const { return at<2>().valid(); }
-  ::protozero::PackedRepeatedFieldIterator<::protozero::proto_utils::ProtoWireType::kVarInt, int64_t> switch_prev_state(bool* parse_error_ptr) const { return GetPackedRepeated<::protozero::proto_utils::ProtoWireType::kVarInt, int64_t>(2, parse_error_ptr); }
-  bool has_switch_next_pid() const { return at<3>().valid(); }
-  ::protozero::PackedRepeatedFieldIterator<::protozero::proto_utils::ProtoWireType::kVarInt, int32_t> switch_next_pid(bool* parse_error_ptr) const { return GetPackedRepeated<::protozero::proto_utils::ProtoWireType::kVarInt, int32_t>(3, parse_error_ptr); }
-  bool has_switch_next_prio() const { return at<4>().valid(); }
-  ::protozero::PackedRepeatedFieldIterator<::protozero::proto_utils::ProtoWireType::kVarInt, int32_t> switch_next_prio(bool* parse_error_ptr) const { return GetPackedRepeated<::protozero::proto_utils::ProtoWireType::kVarInt, int32_t>(4, parse_error_ptr); }
-  bool has_switch_next_comm_index() const { return at<6>().valid(); }
-  ::protozero::PackedRepeatedFieldIterator<::protozero::proto_utils::ProtoWireType::kVarInt, uint32_t> switch_next_comm_index(bool* parse_error_ptr) const { return GetPackedRepeated<::protozero::proto_utils::ProtoWireType::kVarInt, uint32_t>(6, parse_error_ptr); }
-  bool has_waking_timestamp() const { return at<7>().valid(); }
-  ::protozero::PackedRepeatedFieldIterator<::protozero::proto_utils::ProtoWireType::kVarInt, uint64_t> waking_timestamp(bool* parse_error_ptr) const { return GetPackedRepeated<::protozero::proto_utils::ProtoWireType::kVarInt, uint64_t>(7, parse_error_ptr); }
-  bool has_waking_pid() const { return at<8>().valid(); }
-  ::protozero::PackedRepeatedFieldIterator<::protozero::proto_utils::ProtoWireType::kVarInt, int32_t> waking_pid(bool* parse_error_ptr) const { return GetPackedRepeated<::protozero::proto_utils::ProtoWireType::kVarInt, int32_t>(8, parse_error_ptr); }
-  bool has_waking_target_cpu() const { return at<9>().valid(); }
-  ::protozero::PackedRepeatedFieldIterator<::protozero::proto_utils::ProtoWireType::kVarInt, int32_t> waking_target_cpu(bool* parse_error_ptr) const { return GetPackedRepeated<::protozero::proto_utils::ProtoWireType::kVarInt, int32_t>(9, parse_error_ptr); }
-  bool has_waking_prio() const { return at<10>().valid(); }
-  ::protozero::PackedRepeatedFieldIterator<::protozero::proto_utils::ProtoWireType::kVarInt, int32_t> waking_prio(bool* parse_error_ptr) const { return GetPackedRepeated<::protozero::proto_utils::ProtoWireType::kVarInt, int32_t>(10, parse_error_ptr); }
-  bool has_waking_comm_index() const { return at<11>().valid(); }
-  ::protozero::PackedRepeatedFieldIterator<::protozero::proto_utils::ProtoWireType::kVarInt, uint32_t> waking_comm_index(bool* parse_error_ptr) const { return GetPackedRepeated<::protozero::proto_utils::ProtoWireType::kVarInt, uint32_t>(11, parse_error_ptr); }
-};
-
-class FtraceEventBundle_CompactSched : public ::protozero::Message {
- public:
-  using Decoder = FtraceEventBundle_CompactSched_Decoder;
-  enum : int32_t {
-    kInternTableFieldNumber = 5,
-    kSwitchTimestampFieldNumber = 1,
-    kSwitchPrevStateFieldNumber = 2,
-    kSwitchNextPidFieldNumber = 3,
-    kSwitchNextPrioFieldNumber = 4,
-    kSwitchNextCommIndexFieldNumber = 6,
-    kWakingTimestampFieldNumber = 7,
-    kWakingPidFieldNumber = 8,
-    kWakingTargetCpuFieldNumber = 9,
-    kWakingPrioFieldNumber = 10,
-    kWakingCommIndexFieldNumber = 11,
-  };
-
-  using FieldMetadata_InternTable =
-    ::protozero::proto_utils::FieldMetadata<
-      5,
-      ::protozero::proto_utils::RepetitionType::kRepeatedNotPacked,
-      ::protozero::proto_utils::ProtoSchemaType::kString,
-      std::string,
-      FtraceEventBundle_CompactSched>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_InternTable kInternTable() { return {}; }
-  void add_intern_table(const char* data, size_t size) {
-    AppendBytes(FieldMetadata_InternTable::kFieldId, data, size);
-  }
-  void add_intern_table(std::string value) {
-    static constexpr uint32_t field_id = FieldMetadata_InternTable::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kString>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_SwitchTimestamp =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kRepeatedPacked,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      FtraceEventBundle_CompactSched>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_SwitchTimestamp kSwitchTimestamp() { return {}; }
-  void set_switch_timestamp(const ::protozero::PackedVarInt& packed_buffer) {
-    AppendBytes(FieldMetadata_SwitchTimestamp::kFieldId, packed_buffer.data(),
-                packed_buffer.size());
-  }
-
-  using FieldMetadata_SwitchPrevState =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kRepeatedPacked,
-      ::protozero::proto_utils::ProtoSchemaType::kInt64,
-      int64_t,
-      FtraceEventBundle_CompactSched>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_SwitchPrevState kSwitchPrevState() { return {}; }
-  void set_switch_prev_state(const ::protozero::PackedVarInt& packed_buffer) {
-    AppendBytes(FieldMetadata_SwitchPrevState::kFieldId, packed_buffer.data(),
-                packed_buffer.size());
-  }
-
-  using FieldMetadata_SwitchNextPid =
-    ::protozero::proto_utils::FieldMetadata<
-      3,
-      ::protozero::proto_utils::RepetitionType::kRepeatedPacked,
-      ::protozero::proto_utils::ProtoSchemaType::kInt32,
-      int32_t,
-      FtraceEventBundle_CompactSched>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_SwitchNextPid kSwitchNextPid() { return {}; }
-  void set_switch_next_pid(const ::protozero::PackedVarInt& packed_buffer) {
-    AppendBytes(FieldMetadata_SwitchNextPid::kFieldId, packed_buffer.data(),
-                packed_buffer.size());
-  }
-
-  using FieldMetadata_SwitchNextPrio =
-    ::protozero::proto_utils::FieldMetadata<
-      4,
-      ::protozero::proto_utils::RepetitionType::kRepeatedPacked,
-      ::protozero::proto_utils::ProtoSchemaType::kInt32,
-      int32_t,
-      FtraceEventBundle_CompactSched>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_SwitchNextPrio kSwitchNextPrio() { return {}; }
-  void set_switch_next_prio(const ::protozero::PackedVarInt& packed_buffer) {
-    AppendBytes(FieldMetadata_SwitchNextPrio::kFieldId, packed_buffer.data(),
-                packed_buffer.size());
-  }
-
-  using FieldMetadata_SwitchNextCommIndex =
-    ::protozero::proto_utils::FieldMetadata<
-      6,
-      ::protozero::proto_utils::RepetitionType::kRepeatedPacked,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      FtraceEventBundle_CompactSched>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_SwitchNextCommIndex kSwitchNextCommIndex() { return {}; }
-  void set_switch_next_comm_index(const ::protozero::PackedVarInt& packed_buffer) {
-    AppendBytes(FieldMetadata_SwitchNextCommIndex::kFieldId, packed_buffer.data(),
-                packed_buffer.size());
-  }
-
-  using FieldMetadata_WakingTimestamp =
-    ::protozero::proto_utils::FieldMetadata<
-      7,
-      ::protozero::proto_utils::RepetitionType::kRepeatedPacked,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      FtraceEventBundle_CompactSched>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_WakingTimestamp kWakingTimestamp() { return {}; }
-  void set_waking_timestamp(const ::protozero::PackedVarInt& packed_buffer) {
-    AppendBytes(FieldMetadata_WakingTimestamp::kFieldId, packed_buffer.data(),
-                packed_buffer.size());
-  }
-
-  using FieldMetadata_WakingPid =
-    ::protozero::proto_utils::FieldMetadata<
-      8,
-      ::protozero::proto_utils::RepetitionType::kRepeatedPacked,
-      ::protozero::proto_utils::ProtoSchemaType::kInt32,
-      int32_t,
-      FtraceEventBundle_CompactSched>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_WakingPid kWakingPid() { return {}; }
-  void set_waking_pid(const ::protozero::PackedVarInt& packed_buffer) {
-    AppendBytes(FieldMetadata_WakingPid::kFieldId, packed_buffer.data(),
-                packed_buffer.size());
-  }
-
-  using FieldMetadata_WakingTargetCpu =
-    ::protozero::proto_utils::FieldMetadata<
-      9,
-      ::protozero::proto_utils::RepetitionType::kRepeatedPacked,
-      ::protozero::proto_utils::ProtoSchemaType::kInt32,
-      int32_t,
-      FtraceEventBundle_CompactSched>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_WakingTargetCpu kWakingTargetCpu() { return {}; }
-  void set_waking_target_cpu(const ::protozero::PackedVarInt& packed_buffer) {
-    AppendBytes(FieldMetadata_WakingTargetCpu::kFieldId, packed_buffer.data(),
-                packed_buffer.size());
-  }
-
-  using FieldMetadata_WakingPrio =
-    ::protozero::proto_utils::FieldMetadata<
-      10,
-      ::protozero::proto_utils::RepetitionType::kRepeatedPacked,
-      ::protozero::proto_utils::ProtoSchemaType::kInt32,
-      int32_t,
-      FtraceEventBundle_CompactSched>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_WakingPrio kWakingPrio() { return {}; }
-  void set_waking_prio(const ::protozero::PackedVarInt& packed_buffer) {
-    AppendBytes(FieldMetadata_WakingPrio::kFieldId, packed_buffer.data(),
-                packed_buffer.size());
-  }
-
-  using FieldMetadata_WakingCommIndex =
-    ::protozero::proto_utils::FieldMetadata<
-      11,
-      ::protozero::proto_utils::RepetitionType::kRepeatedPacked,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      FtraceEventBundle_CompactSched>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_WakingCommIndex kWakingCommIndex() { return {}; }
-  void set_waking_comm_index(const ::protozero::PackedVarInt& packed_buffer) {
-    AppendBytes(FieldMetadata_WakingCommIndex::kFieldId, packed_buffer.data(),
-                packed_buffer.size());
-  }
-};
-
-} // Namespace.
-} // Namespace.
-} // Namespace.
-#endif  // Include guard.
-// gen_amalgamated begin header: gen/protos/perfetto/trace/ftrace/ftrace_stats.pbzero.h
-// Autogenerated by the ProtoZero compiler plugin. DO NOT EDIT.
-
-#ifndef PERFETTO_PROTOS_PROTOS_PERFETTO_TRACE_FTRACE_FTRACE_STATS_PROTO_H_
-#define PERFETTO_PROTOS_PROTOS_PERFETTO_TRACE_FTRACE_FTRACE_STATS_PROTO_H_
-
-#include <stddef.h>
-#include <stdint.h>
-
-// gen_amalgamated expanded: #include "perfetto/protozero/field_writer.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/message.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/packed_repeated_fields.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/proto_decoder.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/proto_utils.h"
-
-namespace perfetto {
-namespace protos {
-namespace pbzero {
-
-class FtraceCpuStats;
-enum FtraceStats_Phase : int32_t;
-
-enum FtraceStats_Phase : int32_t {
-  FtraceStats_Phase_UNSPECIFIED = 0,
-  FtraceStats_Phase_START_OF_TRACE = 1,
-  FtraceStats_Phase_END_OF_TRACE = 2,
-};
-
-const FtraceStats_Phase FtraceStats_Phase_MIN = FtraceStats_Phase_UNSPECIFIED;
-const FtraceStats_Phase FtraceStats_Phase_MAX = FtraceStats_Phase_END_OF_TRACE;
-
-class FtraceStats_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/4, /*HAS_NONPACKED_REPEATED_FIELDS=*/true> {
- public:
-  FtraceStats_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit FtraceStats_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit FtraceStats_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_phase() const { return at<1>().valid(); }
-  int32_t phase() const { return at<1>().as_int32(); }
-  bool has_cpu_stats() const { return at<2>().valid(); }
-  ::protozero::RepeatedFieldIterator<::protozero::ConstBytes> cpu_stats() const { return GetRepeated<::protozero::ConstBytes>(2); }
-  bool has_kernel_symbols_parsed() const { return at<3>().valid(); }
-  uint32_t kernel_symbols_parsed() const { return at<3>().as_uint32(); }
-  bool has_kernel_symbols_mem_kb() const { return at<4>().valid(); }
-  uint32_t kernel_symbols_mem_kb() const { return at<4>().as_uint32(); }
-};
-
-class FtraceStats : public ::protozero::Message {
- public:
-  using Decoder = FtraceStats_Decoder;
-  enum : int32_t {
-    kPhaseFieldNumber = 1,
-    kCpuStatsFieldNumber = 2,
-    kKernelSymbolsParsedFieldNumber = 3,
-    kKernelSymbolsMemKbFieldNumber = 4,
-  };
-  using Phase = ::perfetto::protos::pbzero::FtraceStats_Phase;
-  static const Phase UNSPECIFIED = FtraceStats_Phase_UNSPECIFIED;
-  static const Phase START_OF_TRACE = FtraceStats_Phase_START_OF_TRACE;
-  static const Phase END_OF_TRACE = FtraceStats_Phase_END_OF_TRACE;
-
-  using FieldMetadata_Phase =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kEnum,
-      ::perfetto::protos::pbzero::FtraceStats_Phase,
-      FtraceStats>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Phase kPhase() { return {}; }
-  void set_phase(::perfetto::protos::pbzero::FtraceStats_Phase value) {
-    static constexpr uint32_t field_id = FieldMetadata_Phase::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kEnum>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_CpuStats =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kRepeatedNotPacked,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      FtraceCpuStats,
-      FtraceStats>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_CpuStats kCpuStats() { return {}; }
-  template <typename T = FtraceCpuStats> T* add_cpu_stats() {
-    return BeginNestedMessage<T>(2);
-  }
-
-
-  using FieldMetadata_KernelSymbolsParsed =
-    ::protozero::proto_utils::FieldMetadata<
-      3,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      FtraceStats>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_KernelSymbolsParsed kKernelSymbolsParsed() { return {}; }
-  void set_kernel_symbols_parsed(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_KernelSymbolsParsed::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_KernelSymbolsMemKb =
-    ::protozero::proto_utils::FieldMetadata<
-      4,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      FtraceStats>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_KernelSymbolsMemKb kKernelSymbolsMemKb() { return {}; }
-  void set_kernel_symbols_mem_kb(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_KernelSymbolsMemKb::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-};
-
-class FtraceCpuStats_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/9, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  FtraceCpuStats_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit FtraceCpuStats_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit FtraceCpuStats_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_cpu() const { return at<1>().valid(); }
-  uint64_t cpu() const { return at<1>().as_uint64(); }
-  bool has_entries() const { return at<2>().valid(); }
-  uint64_t entries() const { return at<2>().as_uint64(); }
-  bool has_overrun() const { return at<3>().valid(); }
-  uint64_t overrun() const { return at<3>().as_uint64(); }
-  bool has_commit_overrun() const { return at<4>().valid(); }
-  uint64_t commit_overrun() const { return at<4>().as_uint64(); }
-  bool has_bytes_read() const { return at<5>().valid(); }
-  uint64_t bytes_read() const { return at<5>().as_uint64(); }
-  bool has_oldest_event_ts() const { return at<6>().valid(); }
-  double oldest_event_ts() const { return at<6>().as_double(); }
-  bool has_now_ts() const { return at<7>().valid(); }
-  double now_ts() const { return at<7>().as_double(); }
-  bool has_dropped_events() const { return at<8>().valid(); }
-  uint64_t dropped_events() const { return at<8>().as_uint64(); }
-  bool has_read_events() const { return at<9>().valid(); }
-  uint64_t read_events() const { return at<9>().as_uint64(); }
-};
-
-class FtraceCpuStats : public ::protozero::Message {
- public:
-  using Decoder = FtraceCpuStats_Decoder;
-  enum : int32_t {
-    kCpuFieldNumber = 1,
-    kEntriesFieldNumber = 2,
-    kOverrunFieldNumber = 3,
-    kCommitOverrunFieldNumber = 4,
-    kBytesReadFieldNumber = 5,
-    kOldestEventTsFieldNumber = 6,
-    kNowTsFieldNumber = 7,
-    kDroppedEventsFieldNumber = 8,
-    kReadEventsFieldNumber = 9,
-  };
-
-  using FieldMetadata_Cpu =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      FtraceCpuStats>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Cpu kCpu() { return {}; }
-  void set_cpu(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Cpu::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Entries =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      FtraceCpuStats>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Entries kEntries() { return {}; }
-  void set_entries(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Entries::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Overrun =
-    ::protozero::proto_utils::FieldMetadata<
-      3,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      FtraceCpuStats>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Overrun kOverrun() { return {}; }
-  void set_overrun(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Overrun::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_CommitOverrun =
-    ::protozero::proto_utils::FieldMetadata<
-      4,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      FtraceCpuStats>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_CommitOverrun kCommitOverrun() { return {}; }
-  void set_commit_overrun(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_CommitOverrun::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_BytesRead =
-    ::protozero::proto_utils::FieldMetadata<
-      5,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      FtraceCpuStats>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_BytesRead kBytesRead() { return {}; }
-  void set_bytes_read(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_BytesRead::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_OldestEventTs =
-    ::protozero::proto_utils::FieldMetadata<
-      6,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kDouble,
-      double,
-      FtraceCpuStats>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_OldestEventTs kOldestEventTs() { return {}; }
-  void set_oldest_event_ts(double value) {
-    static constexpr uint32_t field_id = FieldMetadata_OldestEventTs::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kDouble>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_NowTs =
-    ::protozero::proto_utils::FieldMetadata<
-      7,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kDouble,
-      double,
-      FtraceCpuStats>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_NowTs kNowTs() { return {}; }
-  void set_now_ts(double value) {
-    static constexpr uint32_t field_id = FieldMetadata_NowTs::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kDouble>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_DroppedEvents =
-    ::protozero::proto_utils::FieldMetadata<
-      8,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      FtraceCpuStats>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_DroppedEvents kDroppedEvents() { return {}; }
-  void set_dropped_events(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_DroppedEvents::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_ReadEvents =
-    ::protozero::proto_utils::FieldMetadata<
-      9,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      FtraceCpuStats>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_ReadEvents kReadEvents() { return {}; }
-  void set_read_events(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_ReadEvents::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-};
-
-} // Namespace.
-} // Namespace.
-} // Namespace.
-#endif  // Include guard.
-// gen_amalgamated begin header: gen/protos/perfetto/trace/ftrace/test_bundle_wrapper.pbzero.h
-// Autogenerated by the ProtoZero compiler plugin. DO NOT EDIT.
-
-#ifndef PERFETTO_PROTOS_PROTOS_PERFETTO_TRACE_FTRACE_TEST_BUNDLE_WRAPPER_PROTO_H_
-#define PERFETTO_PROTOS_PROTOS_PERFETTO_TRACE_FTRACE_TEST_BUNDLE_WRAPPER_PROTO_H_
-
-#include <stddef.h>
-#include <stdint.h>
-
-// gen_amalgamated expanded: #include "perfetto/protozero/field_writer.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/message.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/packed_repeated_fields.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/proto_decoder.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/proto_utils.h"
-
-namespace perfetto {
-namespace protos {
-namespace pbzero {
-
-class FtraceEventBundle;
-
-class TestBundleWrapper_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/3, /*HAS_NONPACKED_REPEATED_FIELDS=*/true> {
- public:
-  TestBundleWrapper_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit TestBundleWrapper_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit TestBundleWrapper_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_before() const { return at<1>().valid(); }
-  ::protozero::ConstChars before() const { return at<1>().as_string(); }
-  bool has_bundle() const { return at<2>().valid(); }
-  ::protozero::RepeatedFieldIterator<::protozero::ConstBytes> bundle() const { return GetRepeated<::protozero::ConstBytes>(2); }
-  bool has_after() const { return at<3>().valid(); }
-  ::protozero::ConstChars after() const { return at<3>().as_string(); }
-};
-
-class TestBundleWrapper : public ::protozero::Message {
- public:
-  using Decoder = TestBundleWrapper_Decoder;
-  enum : int32_t {
-    kBeforeFieldNumber = 1,
-    kBundleFieldNumber = 2,
-    kAfterFieldNumber = 3,
-  };
-
-  using FieldMetadata_Before =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kString,
-      std::string,
-      TestBundleWrapper>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Before kBefore() { return {}; }
-  void set_before(const char* data, size_t size) {
-    AppendBytes(FieldMetadata_Before::kFieldId, data, size);
-  }
-  void set_before(std::string value) {
-    static constexpr uint32_t field_id = FieldMetadata_Before::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kString>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Bundle =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kRepeatedNotPacked,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      FtraceEventBundle,
-      TestBundleWrapper>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Bundle kBundle() { return {}; }
-  template <typename T = FtraceEventBundle> T* add_bundle() {
-    return BeginNestedMessage<T>(2);
-  }
-
-
-  using FieldMetadata_After =
-    ::protozero::proto_utils::FieldMetadata<
-      3,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kString,
-      std::string,
-      TestBundleWrapper>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_After kAfter() { return {}; }
-  void set_after(const char* data, size_t size) {
-    AppendBytes(FieldMetadata_After::kFieldId, data, size);
-  }
-  void set_after(std::string value) {
-    static constexpr uint32_t field_id = FieldMetadata_After::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kString>
-        ::Append(*this, field_id, value);
-  }
-};
-
-} // Namespace.
-} // Namespace.
-} // Namespace.
-#endif  // Include guard.
-// gen_amalgamated begin header: gen/protos/perfetto/trace/ftrace/generic.pbzero.h
-// Autogenerated by the ProtoZero compiler plugin. DO NOT EDIT.
-
-#ifndef PERFETTO_PROTOS_PROTOS_PERFETTO_TRACE_FTRACE_GENERIC_PROTO_H_
-#define PERFETTO_PROTOS_PROTOS_PERFETTO_TRACE_FTRACE_GENERIC_PROTO_H_
-
-#include <stddef.h>
-#include <stdint.h>
-
-// gen_amalgamated expanded: #include "perfetto/protozero/field_writer.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/message.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/packed_repeated_fields.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/proto_decoder.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/proto_utils.h"
-
-namespace perfetto {
-namespace protos {
-namespace pbzero {
-
-class GenericFtraceEvent_Field;
-
-class GenericFtraceEvent_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/2, /*HAS_NONPACKED_REPEATED_FIELDS=*/true> {
- public:
-  GenericFtraceEvent_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit GenericFtraceEvent_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit GenericFtraceEvent_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_event_name() const { return at<1>().valid(); }
-  ::protozero::ConstChars event_name() const { return at<1>().as_string(); }
-  bool has_field() const { return at<2>().valid(); }
-  ::protozero::RepeatedFieldIterator<::protozero::ConstBytes> field() const { return GetRepeated<::protozero::ConstBytes>(2); }
-};
-
-class GenericFtraceEvent : public ::protozero::Message {
- public:
-  using Decoder = GenericFtraceEvent_Decoder;
-  enum : int32_t {
-    kEventNameFieldNumber = 1,
-    kFieldFieldNumber = 2,
-  };
-  using Field = ::perfetto::protos::pbzero::GenericFtraceEvent_Field;
-
-  using FieldMetadata_EventName =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kString,
-      std::string,
-      GenericFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_EventName kEventName() { return {}; }
-  void set_event_name(const char* data, size_t size) {
-    AppendBytes(FieldMetadata_EventName::kFieldId, data, size);
-  }
-  void set_event_name(std::string value) {
-    static constexpr uint32_t field_id = FieldMetadata_EventName::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kString>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Field =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kRepeatedNotPacked,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      GenericFtraceEvent_Field,
-      GenericFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Field kField() { return {}; }
-  template <typename T = GenericFtraceEvent_Field> T* add_field() {
-    return BeginNestedMessage<T>(2);
-  }
-
-};
-
-class GenericFtraceEvent_Field_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/5, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  GenericFtraceEvent_Field_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit GenericFtraceEvent_Field_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit GenericFtraceEvent_Field_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_name() const { return at<1>().valid(); }
-  ::protozero::ConstChars name() const { return at<1>().as_string(); }
-  bool has_str_value() const { return at<3>().valid(); }
-  ::protozero::ConstChars str_value() const { return at<3>().as_string(); }
-  bool has_int_value() const { return at<4>().valid(); }
-  int64_t int_value() const { return at<4>().as_int64(); }
-  bool has_uint_value() const { return at<5>().valid(); }
-  uint64_t uint_value() const { return at<5>().as_uint64(); }
-};
-
-class GenericFtraceEvent_Field : public ::protozero::Message {
- public:
-  using Decoder = GenericFtraceEvent_Field_Decoder;
-  enum : int32_t {
-    kNameFieldNumber = 1,
-    kStrValueFieldNumber = 3,
-    kIntValueFieldNumber = 4,
-    kUintValueFieldNumber = 5,
-  };
-
-  using FieldMetadata_Name =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kString,
-      std::string,
-      GenericFtraceEvent_Field>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Name kName() { return {}; }
-  void set_name(const char* data, size_t size) {
-    AppendBytes(FieldMetadata_Name::kFieldId, data, size);
-  }
-  void set_name(std::string value) {
-    static constexpr uint32_t field_id = FieldMetadata_Name::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kString>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_StrValue =
-    ::protozero::proto_utils::FieldMetadata<
-      3,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kString,
-      std::string,
-      GenericFtraceEvent_Field>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_StrValue kStrValue() { return {}; }
-  void set_str_value(const char* data, size_t size) {
-    AppendBytes(FieldMetadata_StrValue::kFieldId, data, size);
-  }
-  void set_str_value(std::string value) {
-    static constexpr uint32_t field_id = FieldMetadata_StrValue::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kString>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_IntValue =
-    ::protozero::proto_utils::FieldMetadata<
-      4,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt64,
-      int64_t,
-      GenericFtraceEvent_Field>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_IntValue kIntValue() { return {}; }
-  void set_int_value(int64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_IntValue::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_UintValue =
-    ::protozero::proto_utils::FieldMetadata<
-      5,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      GenericFtraceEvent_Field>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_UintValue kUintValue() { return {}; }
-  void set_uint_value(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_UintValue::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-};
-
-} // Namespace.
-} // Namespace.
-} // Namespace.
-#endif  // Include guard.
-// gen_amalgamated begin header: gen/protos/perfetto/trace/ftrace/binder.pbzero.h
-// Autogenerated by the ProtoZero compiler plugin. DO NOT EDIT.
-
-#ifndef PERFETTO_PROTOS_PROTOS_PERFETTO_TRACE_FTRACE_BINDER_PROTO_H_
-#define PERFETTO_PROTOS_PROTOS_PERFETTO_TRACE_FTRACE_BINDER_PROTO_H_
-
-#include <stddef.h>
-#include <stdint.h>
-
-// gen_amalgamated expanded: #include "perfetto/protozero/field_writer.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/message.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/packed_repeated_fields.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/proto_decoder.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/proto_utils.h"
-
-namespace perfetto {
-namespace protos {
-namespace pbzero {
-
-
-class BinderTransactionAllocBufFtraceEvent_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/3, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  BinderTransactionAllocBufFtraceEvent_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit BinderTransactionAllocBufFtraceEvent_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit BinderTransactionAllocBufFtraceEvent_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_data_size() const { return at<1>().valid(); }
-  uint64_t data_size() const { return at<1>().as_uint64(); }
-  bool has_debug_id() const { return at<2>().valid(); }
-  int32_t debug_id() const { return at<2>().as_int32(); }
-  bool has_offsets_size() const { return at<3>().valid(); }
-  uint64_t offsets_size() const { return at<3>().as_uint64(); }
-};
-
-class BinderTransactionAllocBufFtraceEvent : public ::protozero::Message {
- public:
-  using Decoder = BinderTransactionAllocBufFtraceEvent_Decoder;
-  enum : int32_t {
-    kDataSizeFieldNumber = 1,
-    kDebugIdFieldNumber = 2,
-    kOffsetsSizeFieldNumber = 3,
-  };
-
-  using FieldMetadata_DataSize =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      BinderTransactionAllocBufFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_DataSize kDataSize() { return {}; }
-  void set_data_size(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_DataSize::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_DebugId =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt32,
-      int32_t,
-      BinderTransactionAllocBufFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_DebugId kDebugId() { return {}; }
-  void set_debug_id(int32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_DebugId::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_OffsetsSize =
-    ::protozero::proto_utils::FieldMetadata<
-      3,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      BinderTransactionAllocBufFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_OffsetsSize kOffsetsSize() { return {}; }
-  void set_offsets_size(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_OffsetsSize::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-};
-
-class BinderUnlockFtraceEvent_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/1, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  BinderUnlockFtraceEvent_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit BinderUnlockFtraceEvent_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit BinderUnlockFtraceEvent_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_tag() const { return at<1>().valid(); }
-  ::protozero::ConstChars tag() const { return at<1>().as_string(); }
-};
-
-class BinderUnlockFtraceEvent : public ::protozero::Message {
- public:
-  using Decoder = BinderUnlockFtraceEvent_Decoder;
-  enum : int32_t {
-    kTagFieldNumber = 1,
-  };
-
-  using FieldMetadata_Tag =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kString,
-      std::string,
-      BinderUnlockFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Tag kTag() { return {}; }
-  void set_tag(const char* data, size_t size) {
-    AppendBytes(FieldMetadata_Tag::kFieldId, data, size);
-  }
-  void set_tag(std::string value) {
-    static constexpr uint32_t field_id = FieldMetadata_Tag::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kString>
-        ::Append(*this, field_id, value);
-  }
-};
-
-class BinderLockedFtraceEvent_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/1, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  BinderLockedFtraceEvent_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit BinderLockedFtraceEvent_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit BinderLockedFtraceEvent_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_tag() const { return at<1>().valid(); }
-  ::protozero::ConstChars tag() const { return at<1>().as_string(); }
-};
-
-class BinderLockedFtraceEvent : public ::protozero::Message {
- public:
-  using Decoder = BinderLockedFtraceEvent_Decoder;
-  enum : int32_t {
-    kTagFieldNumber = 1,
-  };
-
-  using FieldMetadata_Tag =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kString,
-      std::string,
-      BinderLockedFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Tag kTag() { return {}; }
-  void set_tag(const char* data, size_t size) {
-    AppendBytes(FieldMetadata_Tag::kFieldId, data, size);
-  }
-  void set_tag(std::string value) {
-    static constexpr uint32_t field_id = FieldMetadata_Tag::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kString>
-        ::Append(*this, field_id, value);
-  }
-};
-
-class BinderLockFtraceEvent_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/1, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  BinderLockFtraceEvent_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit BinderLockFtraceEvent_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit BinderLockFtraceEvent_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_tag() const { return at<1>().valid(); }
-  ::protozero::ConstChars tag() const { return at<1>().as_string(); }
-};
-
-class BinderLockFtraceEvent : public ::protozero::Message {
- public:
-  using Decoder = BinderLockFtraceEvent_Decoder;
-  enum : int32_t {
-    kTagFieldNumber = 1,
-  };
-
-  using FieldMetadata_Tag =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kString,
-      std::string,
-      BinderLockFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Tag kTag() { return {}; }
-  void set_tag(const char* data, size_t size) {
-    AppendBytes(FieldMetadata_Tag::kFieldId, data, size);
-  }
-  void set_tag(std::string value) {
-    static constexpr uint32_t field_id = FieldMetadata_Tag::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kString>
-        ::Append(*this, field_id, value);
-  }
-};
-
-class BinderSetPriorityFtraceEvent_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/5, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  BinderSetPriorityFtraceEvent_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit BinderSetPriorityFtraceEvent_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit BinderSetPriorityFtraceEvent_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_proc() const { return at<1>().valid(); }
-  int32_t proc() const { return at<1>().as_int32(); }
-  bool has_thread() const { return at<2>().valid(); }
-  int32_t thread() const { return at<2>().as_int32(); }
-  bool has_old_prio() const { return at<3>().valid(); }
-  uint32_t old_prio() const { return at<3>().as_uint32(); }
-  bool has_new_prio() const { return at<4>().valid(); }
-  uint32_t new_prio() const { return at<4>().as_uint32(); }
-  bool has_desired_prio() const { return at<5>().valid(); }
-  uint32_t desired_prio() const { return at<5>().as_uint32(); }
-};
-
-class BinderSetPriorityFtraceEvent : public ::protozero::Message {
- public:
-  using Decoder = BinderSetPriorityFtraceEvent_Decoder;
-  enum : int32_t {
-    kProcFieldNumber = 1,
-    kThreadFieldNumber = 2,
-    kOldPrioFieldNumber = 3,
-    kNewPrioFieldNumber = 4,
-    kDesiredPrioFieldNumber = 5,
-  };
-
-  using FieldMetadata_Proc =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt32,
-      int32_t,
-      BinderSetPriorityFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Proc kProc() { return {}; }
-  void set_proc(int32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Proc::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Thread =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt32,
-      int32_t,
-      BinderSetPriorityFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Thread kThread() { return {}; }
-  void set_thread(int32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Thread::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_OldPrio =
-    ::protozero::proto_utils::FieldMetadata<
-      3,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      BinderSetPriorityFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_OldPrio kOldPrio() { return {}; }
-  void set_old_prio(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_OldPrio::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_NewPrio =
-    ::protozero::proto_utils::FieldMetadata<
-      4,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      BinderSetPriorityFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_NewPrio kNewPrio() { return {}; }
-  void set_new_prio(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_NewPrio::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_DesiredPrio =
-    ::protozero::proto_utils::FieldMetadata<
-      5,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      BinderSetPriorityFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_DesiredPrio kDesiredPrio() { return {}; }
-  void set_desired_prio(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_DesiredPrio::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-};
-
-class BinderTransactionReceivedFtraceEvent_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/1, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  BinderTransactionReceivedFtraceEvent_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit BinderTransactionReceivedFtraceEvent_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit BinderTransactionReceivedFtraceEvent_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_debug_id() const { return at<1>().valid(); }
-  int32_t debug_id() const { return at<1>().as_int32(); }
-};
-
-class BinderTransactionReceivedFtraceEvent : public ::protozero::Message {
- public:
-  using Decoder = BinderTransactionReceivedFtraceEvent_Decoder;
-  enum : int32_t {
-    kDebugIdFieldNumber = 1,
-  };
-
-  using FieldMetadata_DebugId =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt32,
-      int32_t,
-      BinderTransactionReceivedFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_DebugId kDebugId() { return {}; }
-  void set_debug_id(int32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_DebugId::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt32>
-        ::Append(*this, field_id, value);
-  }
-};
-
-class BinderTransactionFtraceEvent_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/7, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  BinderTransactionFtraceEvent_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit BinderTransactionFtraceEvent_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit BinderTransactionFtraceEvent_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_debug_id() const { return at<1>().valid(); }
-  int32_t debug_id() const { return at<1>().as_int32(); }
-  bool has_target_node() const { return at<2>().valid(); }
-  int32_t target_node() const { return at<2>().as_int32(); }
-  bool has_to_proc() const { return at<3>().valid(); }
-  int32_t to_proc() const { return at<3>().as_int32(); }
-  bool has_to_thread() const { return at<4>().valid(); }
-  int32_t to_thread() const { return at<4>().as_int32(); }
-  bool has_reply() const { return at<5>().valid(); }
-  int32_t reply() const { return at<5>().as_int32(); }
-  bool has_code() const { return at<6>().valid(); }
-  uint32_t code() const { return at<6>().as_uint32(); }
-  bool has_flags() const { return at<7>().valid(); }
-  uint32_t flags() const { return at<7>().as_uint32(); }
-};
-
-class BinderTransactionFtraceEvent : public ::protozero::Message {
- public:
-  using Decoder = BinderTransactionFtraceEvent_Decoder;
-  enum : int32_t {
-    kDebugIdFieldNumber = 1,
-    kTargetNodeFieldNumber = 2,
-    kToProcFieldNumber = 3,
-    kToThreadFieldNumber = 4,
-    kReplyFieldNumber = 5,
-    kCodeFieldNumber = 6,
-    kFlagsFieldNumber = 7,
-  };
-
-  using FieldMetadata_DebugId =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt32,
-      int32_t,
-      BinderTransactionFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_DebugId kDebugId() { return {}; }
-  void set_debug_id(int32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_DebugId::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_TargetNode =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt32,
-      int32_t,
-      BinderTransactionFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_TargetNode kTargetNode() { return {}; }
-  void set_target_node(int32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_TargetNode::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_ToProc =
-    ::protozero::proto_utils::FieldMetadata<
-      3,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt32,
-      int32_t,
-      BinderTransactionFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_ToProc kToProc() { return {}; }
-  void set_to_proc(int32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_ToProc::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_ToThread =
-    ::protozero::proto_utils::FieldMetadata<
-      4,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt32,
-      int32_t,
-      BinderTransactionFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_ToThread kToThread() { return {}; }
-  void set_to_thread(int32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_ToThread::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Reply =
-    ::protozero::proto_utils::FieldMetadata<
-      5,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt32,
-      int32_t,
-      BinderTransactionFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Reply kReply() { return {}; }
-  void set_reply(int32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Reply::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Code =
-    ::protozero::proto_utils::FieldMetadata<
-      6,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      BinderTransactionFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Code kCode() { return {}; }
-  void set_code(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Code::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Flags =
-    ::protozero::proto_utils::FieldMetadata<
-      7,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      BinderTransactionFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Flags kFlags() { return {}; }
-  void set_flags(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Flags::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-};
-
-} // Namespace.
-} // Namespace.
-} // Namespace.
-#endif  // Include guard.
-// gen_amalgamated begin header: gen/protos/perfetto/trace/ftrace/block.pbzero.h
-// Autogenerated by the ProtoZero compiler plugin. DO NOT EDIT.
-
-#ifndef PERFETTO_PROTOS_PROTOS_PERFETTO_TRACE_FTRACE_BLOCK_PROTO_H_
-#define PERFETTO_PROTOS_PROTOS_PERFETTO_TRACE_FTRACE_BLOCK_PROTO_H_
-
-#include <stddef.h>
-#include <stdint.h>
-
-// gen_amalgamated expanded: #include "perfetto/protozero/field_writer.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/message.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/packed_repeated_fields.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/proto_decoder.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/proto_utils.h"
-
-namespace perfetto {
-namespace protos {
-namespace pbzero {
-
-
-class BlockUnplugFtraceEvent_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/2, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  BlockUnplugFtraceEvent_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit BlockUnplugFtraceEvent_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit BlockUnplugFtraceEvent_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_nr_rq() const { return at<1>().valid(); }
-  int32_t nr_rq() const { return at<1>().as_int32(); }
-  bool has_comm() const { return at<2>().valid(); }
-  ::protozero::ConstChars comm() const { return at<2>().as_string(); }
-};
-
-class BlockUnplugFtraceEvent : public ::protozero::Message {
- public:
-  using Decoder = BlockUnplugFtraceEvent_Decoder;
-  enum : int32_t {
-    kNrRqFieldNumber = 1,
-    kCommFieldNumber = 2,
-  };
-
-  using FieldMetadata_NrRq =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt32,
-      int32_t,
-      BlockUnplugFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_NrRq kNrRq() { return {}; }
-  void set_nr_rq(int32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_NrRq::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Comm =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kString,
-      std::string,
-      BlockUnplugFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Comm kComm() { return {}; }
-  void set_comm(const char* data, size_t size) {
-    AppendBytes(FieldMetadata_Comm::kFieldId, data, size);
-  }
-  void set_comm(std::string value) {
-    static constexpr uint32_t field_id = FieldMetadata_Comm::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kString>
-        ::Append(*this, field_id, value);
-  }
-};
-
-class BlockTouchBufferFtraceEvent_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/3, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  BlockTouchBufferFtraceEvent_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit BlockTouchBufferFtraceEvent_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit BlockTouchBufferFtraceEvent_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_dev() const { return at<1>().valid(); }
-  uint64_t dev() const { return at<1>().as_uint64(); }
-  bool has_sector() const { return at<2>().valid(); }
-  uint64_t sector() const { return at<2>().as_uint64(); }
-  bool has_size() const { return at<3>().valid(); }
-  uint64_t size() const { return at<3>().as_uint64(); }
-};
-
-class BlockTouchBufferFtraceEvent : public ::protozero::Message {
- public:
-  using Decoder = BlockTouchBufferFtraceEvent_Decoder;
-  enum : int32_t {
-    kDevFieldNumber = 1,
-    kSectorFieldNumber = 2,
-    kSizeFieldNumber = 3,
-  };
-
-  using FieldMetadata_Dev =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      BlockTouchBufferFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Dev kDev() { return {}; }
-  void set_dev(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Dev::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Sector =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      BlockTouchBufferFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Sector kSector() { return {}; }
-  void set_sector(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Sector::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Size =
-    ::protozero::proto_utils::FieldMetadata<
-      3,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      BlockTouchBufferFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Size kSize() { return {}; }
-  void set_size(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Size::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-};
-
-class BlockSplitFtraceEvent_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/5, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  BlockSplitFtraceEvent_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit BlockSplitFtraceEvent_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit BlockSplitFtraceEvent_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_dev() const { return at<1>().valid(); }
-  uint64_t dev() const { return at<1>().as_uint64(); }
-  bool has_sector() const { return at<2>().valid(); }
-  uint64_t sector() const { return at<2>().as_uint64(); }
-  bool has_new_sector() const { return at<3>().valid(); }
-  uint64_t new_sector() const { return at<3>().as_uint64(); }
-  bool has_rwbs() const { return at<4>().valid(); }
-  ::protozero::ConstChars rwbs() const { return at<4>().as_string(); }
-  bool has_comm() const { return at<5>().valid(); }
-  ::protozero::ConstChars comm() const { return at<5>().as_string(); }
-};
-
-class BlockSplitFtraceEvent : public ::protozero::Message {
- public:
-  using Decoder = BlockSplitFtraceEvent_Decoder;
-  enum : int32_t {
-    kDevFieldNumber = 1,
-    kSectorFieldNumber = 2,
-    kNewSectorFieldNumber = 3,
-    kRwbsFieldNumber = 4,
-    kCommFieldNumber = 5,
-  };
-
-  using FieldMetadata_Dev =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      BlockSplitFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Dev kDev() { return {}; }
-  void set_dev(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Dev::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Sector =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      BlockSplitFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Sector kSector() { return {}; }
-  void set_sector(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Sector::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_NewSector =
-    ::protozero::proto_utils::FieldMetadata<
-      3,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      BlockSplitFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_NewSector kNewSector() { return {}; }
-  void set_new_sector(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_NewSector::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Rwbs =
-    ::protozero::proto_utils::FieldMetadata<
-      4,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kString,
-      std::string,
-      BlockSplitFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Rwbs kRwbs() { return {}; }
-  void set_rwbs(const char* data, size_t size) {
-    AppendBytes(FieldMetadata_Rwbs::kFieldId, data, size);
-  }
-  void set_rwbs(std::string value) {
-    static constexpr uint32_t field_id = FieldMetadata_Rwbs::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kString>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Comm =
-    ::protozero::proto_utils::FieldMetadata<
-      5,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kString,
-      std::string,
-      BlockSplitFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Comm kComm() { return {}; }
-  void set_comm(const char* data, size_t size) {
-    AppendBytes(FieldMetadata_Comm::kFieldId, data, size);
-  }
-  void set_comm(std::string value) {
-    static constexpr uint32_t field_id = FieldMetadata_Comm::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kString>
-        ::Append(*this, field_id, value);
-  }
-};
-
-class BlockSleeprqFtraceEvent_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/5, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  BlockSleeprqFtraceEvent_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit BlockSleeprqFtraceEvent_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit BlockSleeprqFtraceEvent_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_dev() const { return at<1>().valid(); }
-  uint64_t dev() const { return at<1>().as_uint64(); }
-  bool has_sector() const { return at<2>().valid(); }
-  uint64_t sector() const { return at<2>().as_uint64(); }
-  bool has_nr_sector() const { return at<3>().valid(); }
-  uint32_t nr_sector() const { return at<3>().as_uint32(); }
-  bool has_rwbs() const { return at<4>().valid(); }
-  ::protozero::ConstChars rwbs() const { return at<4>().as_string(); }
-  bool has_comm() const { return at<5>().valid(); }
-  ::protozero::ConstChars comm() const { return at<5>().as_string(); }
-};
-
-class BlockSleeprqFtraceEvent : public ::protozero::Message {
- public:
-  using Decoder = BlockSleeprqFtraceEvent_Decoder;
-  enum : int32_t {
-    kDevFieldNumber = 1,
-    kSectorFieldNumber = 2,
-    kNrSectorFieldNumber = 3,
-    kRwbsFieldNumber = 4,
-    kCommFieldNumber = 5,
-  };
-
-  using FieldMetadata_Dev =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      BlockSleeprqFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Dev kDev() { return {}; }
-  void set_dev(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Dev::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Sector =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      BlockSleeprqFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Sector kSector() { return {}; }
-  void set_sector(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Sector::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_NrSector =
-    ::protozero::proto_utils::FieldMetadata<
-      3,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      BlockSleeprqFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_NrSector kNrSector() { return {}; }
-  void set_nr_sector(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_NrSector::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Rwbs =
-    ::protozero::proto_utils::FieldMetadata<
-      4,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kString,
-      std::string,
-      BlockSleeprqFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Rwbs kRwbs() { return {}; }
-  void set_rwbs(const char* data, size_t size) {
-    AppendBytes(FieldMetadata_Rwbs::kFieldId, data, size);
-  }
-  void set_rwbs(std::string value) {
-    static constexpr uint32_t field_id = FieldMetadata_Rwbs::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kString>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Comm =
-    ::protozero::proto_utils::FieldMetadata<
-      5,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kString,
-      std::string,
-      BlockSleeprqFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Comm kComm() { return {}; }
-  void set_comm(const char* data, size_t size) {
-    AppendBytes(FieldMetadata_Comm::kFieldId, data, size);
-  }
-  void set_comm(std::string value) {
-    static constexpr uint32_t field_id = FieldMetadata_Comm::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kString>
-        ::Append(*this, field_id, value);
-  }
-};
-
-class BlockRqRequeueFtraceEvent_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/6, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  BlockRqRequeueFtraceEvent_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit BlockRqRequeueFtraceEvent_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit BlockRqRequeueFtraceEvent_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_dev() const { return at<1>().valid(); }
-  uint64_t dev() const { return at<1>().as_uint64(); }
-  bool has_sector() const { return at<2>().valid(); }
-  uint64_t sector() const { return at<2>().as_uint64(); }
-  bool has_nr_sector() const { return at<3>().valid(); }
-  uint32_t nr_sector() const { return at<3>().as_uint32(); }
-  bool has_errors() const { return at<4>().valid(); }
-  int32_t errors() const { return at<4>().as_int32(); }
-  bool has_rwbs() const { return at<5>().valid(); }
-  ::protozero::ConstChars rwbs() const { return at<5>().as_string(); }
-  bool has_cmd() const { return at<6>().valid(); }
-  ::protozero::ConstChars cmd() const { return at<6>().as_string(); }
-};
-
-class BlockRqRequeueFtraceEvent : public ::protozero::Message {
- public:
-  using Decoder = BlockRqRequeueFtraceEvent_Decoder;
-  enum : int32_t {
-    kDevFieldNumber = 1,
-    kSectorFieldNumber = 2,
-    kNrSectorFieldNumber = 3,
-    kErrorsFieldNumber = 4,
-    kRwbsFieldNumber = 5,
-    kCmdFieldNumber = 6,
-  };
-
-  using FieldMetadata_Dev =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      BlockRqRequeueFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Dev kDev() { return {}; }
-  void set_dev(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Dev::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Sector =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      BlockRqRequeueFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Sector kSector() { return {}; }
-  void set_sector(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Sector::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_NrSector =
-    ::protozero::proto_utils::FieldMetadata<
-      3,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      BlockRqRequeueFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_NrSector kNrSector() { return {}; }
-  void set_nr_sector(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_NrSector::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Errors =
-    ::protozero::proto_utils::FieldMetadata<
-      4,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt32,
-      int32_t,
-      BlockRqRequeueFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Errors kErrors() { return {}; }
-  void set_errors(int32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Errors::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Rwbs =
-    ::protozero::proto_utils::FieldMetadata<
-      5,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kString,
-      std::string,
-      BlockRqRequeueFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Rwbs kRwbs() { return {}; }
-  void set_rwbs(const char* data, size_t size) {
-    AppendBytes(FieldMetadata_Rwbs::kFieldId, data, size);
-  }
-  void set_rwbs(std::string value) {
-    static constexpr uint32_t field_id = FieldMetadata_Rwbs::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kString>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Cmd =
-    ::protozero::proto_utils::FieldMetadata<
-      6,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kString,
-      std::string,
-      BlockRqRequeueFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Cmd kCmd() { return {}; }
-  void set_cmd(const char* data, size_t size) {
-    AppendBytes(FieldMetadata_Cmd::kFieldId, data, size);
-  }
-  void set_cmd(std::string value) {
-    static constexpr uint32_t field_id = FieldMetadata_Cmd::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kString>
-        ::Append(*this, field_id, value);
-  }
-};
-
-class BlockRqRemapFtraceEvent_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/7, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  BlockRqRemapFtraceEvent_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit BlockRqRemapFtraceEvent_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit BlockRqRemapFtraceEvent_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_dev() const { return at<1>().valid(); }
-  uint64_t dev() const { return at<1>().as_uint64(); }
-  bool has_sector() const { return at<2>().valid(); }
-  uint64_t sector() const { return at<2>().as_uint64(); }
-  bool has_nr_sector() const { return at<3>().valid(); }
-  uint32_t nr_sector() const { return at<3>().as_uint32(); }
-  bool has_old_dev() const { return at<4>().valid(); }
-  uint64_t old_dev() const { return at<4>().as_uint64(); }
-  bool has_old_sector() const { return at<5>().valid(); }
-  uint64_t old_sector() const { return at<5>().as_uint64(); }
-  bool has_nr_bios() const { return at<6>().valid(); }
-  uint32_t nr_bios() const { return at<6>().as_uint32(); }
-  bool has_rwbs() const { return at<7>().valid(); }
-  ::protozero::ConstChars rwbs() const { return at<7>().as_string(); }
-};
-
-class BlockRqRemapFtraceEvent : public ::protozero::Message {
- public:
-  using Decoder = BlockRqRemapFtraceEvent_Decoder;
-  enum : int32_t {
-    kDevFieldNumber = 1,
-    kSectorFieldNumber = 2,
-    kNrSectorFieldNumber = 3,
-    kOldDevFieldNumber = 4,
-    kOldSectorFieldNumber = 5,
-    kNrBiosFieldNumber = 6,
-    kRwbsFieldNumber = 7,
-  };
-
-  using FieldMetadata_Dev =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      BlockRqRemapFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Dev kDev() { return {}; }
-  void set_dev(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Dev::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Sector =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      BlockRqRemapFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Sector kSector() { return {}; }
-  void set_sector(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Sector::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_NrSector =
-    ::protozero::proto_utils::FieldMetadata<
-      3,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      BlockRqRemapFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_NrSector kNrSector() { return {}; }
-  void set_nr_sector(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_NrSector::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_OldDev =
-    ::protozero::proto_utils::FieldMetadata<
-      4,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      BlockRqRemapFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_OldDev kOldDev() { return {}; }
-  void set_old_dev(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_OldDev::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_OldSector =
-    ::protozero::proto_utils::FieldMetadata<
-      5,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      BlockRqRemapFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_OldSector kOldSector() { return {}; }
-  void set_old_sector(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_OldSector::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_NrBios =
-    ::protozero::proto_utils::FieldMetadata<
-      6,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      BlockRqRemapFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_NrBios kNrBios() { return {}; }
-  void set_nr_bios(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_NrBios::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Rwbs =
-    ::protozero::proto_utils::FieldMetadata<
-      7,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kString,
-      std::string,
-      BlockRqRemapFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Rwbs kRwbs() { return {}; }
-  void set_rwbs(const char* data, size_t size) {
-    AppendBytes(FieldMetadata_Rwbs::kFieldId, data, size);
-  }
-  void set_rwbs(std::string value) {
-    static constexpr uint32_t field_id = FieldMetadata_Rwbs::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kString>
-        ::Append(*this, field_id, value);
-  }
-};
-
-class BlockRqInsertFtraceEvent_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/7, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  BlockRqInsertFtraceEvent_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit BlockRqInsertFtraceEvent_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit BlockRqInsertFtraceEvent_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_dev() const { return at<1>().valid(); }
-  uint64_t dev() const { return at<1>().as_uint64(); }
-  bool has_sector() const { return at<2>().valid(); }
-  uint64_t sector() const { return at<2>().as_uint64(); }
-  bool has_nr_sector() const { return at<3>().valid(); }
-  uint32_t nr_sector() const { return at<3>().as_uint32(); }
-  bool has_bytes() const { return at<4>().valid(); }
-  uint32_t bytes() const { return at<4>().as_uint32(); }
-  bool has_rwbs() const { return at<5>().valid(); }
-  ::protozero::ConstChars rwbs() const { return at<5>().as_string(); }
-  bool has_comm() const { return at<6>().valid(); }
-  ::protozero::ConstChars comm() const { return at<6>().as_string(); }
-  bool has_cmd() const { return at<7>().valid(); }
-  ::protozero::ConstChars cmd() const { return at<7>().as_string(); }
-};
-
-class BlockRqInsertFtraceEvent : public ::protozero::Message {
- public:
-  using Decoder = BlockRqInsertFtraceEvent_Decoder;
-  enum : int32_t {
-    kDevFieldNumber = 1,
-    kSectorFieldNumber = 2,
-    kNrSectorFieldNumber = 3,
-    kBytesFieldNumber = 4,
-    kRwbsFieldNumber = 5,
-    kCommFieldNumber = 6,
-    kCmdFieldNumber = 7,
-  };
-
-  using FieldMetadata_Dev =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      BlockRqInsertFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Dev kDev() { return {}; }
-  void set_dev(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Dev::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Sector =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      BlockRqInsertFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Sector kSector() { return {}; }
-  void set_sector(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Sector::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_NrSector =
-    ::protozero::proto_utils::FieldMetadata<
-      3,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      BlockRqInsertFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_NrSector kNrSector() { return {}; }
-  void set_nr_sector(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_NrSector::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Bytes =
-    ::protozero::proto_utils::FieldMetadata<
-      4,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      BlockRqInsertFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Bytes kBytes() { return {}; }
-  void set_bytes(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Bytes::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Rwbs =
-    ::protozero::proto_utils::FieldMetadata<
-      5,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kString,
-      std::string,
-      BlockRqInsertFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Rwbs kRwbs() { return {}; }
-  void set_rwbs(const char* data, size_t size) {
-    AppendBytes(FieldMetadata_Rwbs::kFieldId, data, size);
-  }
-  void set_rwbs(std::string value) {
-    static constexpr uint32_t field_id = FieldMetadata_Rwbs::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kString>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Comm =
-    ::protozero::proto_utils::FieldMetadata<
-      6,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kString,
-      std::string,
-      BlockRqInsertFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Comm kComm() { return {}; }
-  void set_comm(const char* data, size_t size) {
-    AppendBytes(FieldMetadata_Comm::kFieldId, data, size);
-  }
-  void set_comm(std::string value) {
-    static constexpr uint32_t field_id = FieldMetadata_Comm::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kString>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Cmd =
-    ::protozero::proto_utils::FieldMetadata<
-      7,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kString,
-      std::string,
-      BlockRqInsertFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Cmd kCmd() { return {}; }
-  void set_cmd(const char* data, size_t size) {
-    AppendBytes(FieldMetadata_Cmd::kFieldId, data, size);
-  }
-  void set_cmd(std::string value) {
-    static constexpr uint32_t field_id = FieldMetadata_Cmd::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kString>
-        ::Append(*this, field_id, value);
-  }
-};
-
-class BlockRqCompleteFtraceEvent_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/6, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  BlockRqCompleteFtraceEvent_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit BlockRqCompleteFtraceEvent_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit BlockRqCompleteFtraceEvent_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_dev() const { return at<1>().valid(); }
-  uint64_t dev() const { return at<1>().as_uint64(); }
-  bool has_sector() const { return at<2>().valid(); }
-  uint64_t sector() const { return at<2>().as_uint64(); }
-  bool has_nr_sector() const { return at<3>().valid(); }
-  uint32_t nr_sector() const { return at<3>().as_uint32(); }
-  bool has_errors() const { return at<4>().valid(); }
-  int32_t errors() const { return at<4>().as_int32(); }
-  bool has_rwbs() const { return at<5>().valid(); }
-  ::protozero::ConstChars rwbs() const { return at<5>().as_string(); }
-  bool has_cmd() const { return at<6>().valid(); }
-  ::protozero::ConstChars cmd() const { return at<6>().as_string(); }
-};
-
-class BlockRqCompleteFtraceEvent : public ::protozero::Message {
- public:
-  using Decoder = BlockRqCompleteFtraceEvent_Decoder;
-  enum : int32_t {
-    kDevFieldNumber = 1,
-    kSectorFieldNumber = 2,
-    kNrSectorFieldNumber = 3,
-    kErrorsFieldNumber = 4,
-    kRwbsFieldNumber = 5,
-    kCmdFieldNumber = 6,
-  };
-
-  using FieldMetadata_Dev =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      BlockRqCompleteFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Dev kDev() { return {}; }
-  void set_dev(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Dev::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Sector =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      BlockRqCompleteFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Sector kSector() { return {}; }
-  void set_sector(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Sector::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_NrSector =
-    ::protozero::proto_utils::FieldMetadata<
-      3,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      BlockRqCompleteFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_NrSector kNrSector() { return {}; }
-  void set_nr_sector(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_NrSector::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Errors =
-    ::protozero::proto_utils::FieldMetadata<
-      4,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt32,
-      int32_t,
-      BlockRqCompleteFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Errors kErrors() { return {}; }
-  void set_errors(int32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Errors::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Rwbs =
-    ::protozero::proto_utils::FieldMetadata<
-      5,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kString,
-      std::string,
-      BlockRqCompleteFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Rwbs kRwbs() { return {}; }
-  void set_rwbs(const char* data, size_t size) {
-    AppendBytes(FieldMetadata_Rwbs::kFieldId, data, size);
-  }
-  void set_rwbs(std::string value) {
-    static constexpr uint32_t field_id = FieldMetadata_Rwbs::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kString>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Cmd =
-    ::protozero::proto_utils::FieldMetadata<
-      6,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kString,
-      std::string,
-      BlockRqCompleteFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Cmd kCmd() { return {}; }
-  void set_cmd(const char* data, size_t size) {
-    AppendBytes(FieldMetadata_Cmd::kFieldId, data, size);
-  }
-  void set_cmd(std::string value) {
-    static constexpr uint32_t field_id = FieldMetadata_Cmd::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kString>
-        ::Append(*this, field_id, value);
-  }
-};
-
-class BlockRqAbortFtraceEvent_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/6, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  BlockRqAbortFtraceEvent_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit BlockRqAbortFtraceEvent_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit BlockRqAbortFtraceEvent_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_dev() const { return at<1>().valid(); }
-  uint64_t dev() const { return at<1>().as_uint64(); }
-  bool has_sector() const { return at<2>().valid(); }
-  uint64_t sector() const { return at<2>().as_uint64(); }
-  bool has_nr_sector() const { return at<3>().valid(); }
-  uint32_t nr_sector() const { return at<3>().as_uint32(); }
-  bool has_errors() const { return at<4>().valid(); }
-  int32_t errors() const { return at<4>().as_int32(); }
-  bool has_rwbs() const { return at<5>().valid(); }
-  ::protozero::ConstChars rwbs() const { return at<5>().as_string(); }
-  bool has_cmd() const { return at<6>().valid(); }
-  ::protozero::ConstChars cmd() const { return at<6>().as_string(); }
-};
-
-class BlockRqAbortFtraceEvent : public ::protozero::Message {
- public:
-  using Decoder = BlockRqAbortFtraceEvent_Decoder;
-  enum : int32_t {
-    kDevFieldNumber = 1,
-    kSectorFieldNumber = 2,
-    kNrSectorFieldNumber = 3,
-    kErrorsFieldNumber = 4,
-    kRwbsFieldNumber = 5,
-    kCmdFieldNumber = 6,
-  };
-
-  using FieldMetadata_Dev =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      BlockRqAbortFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Dev kDev() { return {}; }
-  void set_dev(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Dev::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Sector =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      BlockRqAbortFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Sector kSector() { return {}; }
-  void set_sector(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Sector::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_NrSector =
-    ::protozero::proto_utils::FieldMetadata<
-      3,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      BlockRqAbortFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_NrSector kNrSector() { return {}; }
-  void set_nr_sector(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_NrSector::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Errors =
-    ::protozero::proto_utils::FieldMetadata<
-      4,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt32,
-      int32_t,
-      BlockRqAbortFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Errors kErrors() { return {}; }
-  void set_errors(int32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Errors::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Rwbs =
-    ::protozero::proto_utils::FieldMetadata<
-      5,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kString,
-      std::string,
-      BlockRqAbortFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Rwbs kRwbs() { return {}; }
-  void set_rwbs(const char* data, size_t size) {
-    AppendBytes(FieldMetadata_Rwbs::kFieldId, data, size);
-  }
-  void set_rwbs(std::string value) {
-    static constexpr uint32_t field_id = FieldMetadata_Rwbs::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kString>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Cmd =
-    ::protozero::proto_utils::FieldMetadata<
-      6,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kString,
-      std::string,
-      BlockRqAbortFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Cmd kCmd() { return {}; }
-  void set_cmd(const char* data, size_t size) {
-    AppendBytes(FieldMetadata_Cmd::kFieldId, data, size);
-  }
-  void set_cmd(std::string value) {
-    static constexpr uint32_t field_id = FieldMetadata_Cmd::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kString>
-        ::Append(*this, field_id, value);
-  }
-};
-
-class BlockPlugFtraceEvent_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/1, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  BlockPlugFtraceEvent_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit BlockPlugFtraceEvent_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit BlockPlugFtraceEvent_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_comm() const { return at<1>().valid(); }
-  ::protozero::ConstChars comm() const { return at<1>().as_string(); }
-};
-
-class BlockPlugFtraceEvent : public ::protozero::Message {
- public:
-  using Decoder = BlockPlugFtraceEvent_Decoder;
-  enum : int32_t {
-    kCommFieldNumber = 1,
-  };
-
-  using FieldMetadata_Comm =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kString,
-      std::string,
-      BlockPlugFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Comm kComm() { return {}; }
-  void set_comm(const char* data, size_t size) {
-    AppendBytes(FieldMetadata_Comm::kFieldId, data, size);
-  }
-  void set_comm(std::string value) {
-    static constexpr uint32_t field_id = FieldMetadata_Comm::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kString>
-        ::Append(*this, field_id, value);
-  }
-};
-
-class BlockGetrqFtraceEvent_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/5, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  BlockGetrqFtraceEvent_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit BlockGetrqFtraceEvent_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit BlockGetrqFtraceEvent_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_dev() const { return at<1>().valid(); }
-  uint64_t dev() const { return at<1>().as_uint64(); }
-  bool has_sector() const { return at<2>().valid(); }
-  uint64_t sector() const { return at<2>().as_uint64(); }
-  bool has_nr_sector() const { return at<3>().valid(); }
-  uint32_t nr_sector() const { return at<3>().as_uint32(); }
-  bool has_rwbs() const { return at<4>().valid(); }
-  ::protozero::ConstChars rwbs() const { return at<4>().as_string(); }
-  bool has_comm() const { return at<5>().valid(); }
-  ::protozero::ConstChars comm() const { return at<5>().as_string(); }
-};
-
-class BlockGetrqFtraceEvent : public ::protozero::Message {
- public:
-  using Decoder = BlockGetrqFtraceEvent_Decoder;
-  enum : int32_t {
-    kDevFieldNumber = 1,
-    kSectorFieldNumber = 2,
-    kNrSectorFieldNumber = 3,
-    kRwbsFieldNumber = 4,
-    kCommFieldNumber = 5,
-  };
-
-  using FieldMetadata_Dev =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      BlockGetrqFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Dev kDev() { return {}; }
-  void set_dev(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Dev::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Sector =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      BlockGetrqFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Sector kSector() { return {}; }
-  void set_sector(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Sector::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_NrSector =
-    ::protozero::proto_utils::FieldMetadata<
-      3,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      BlockGetrqFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_NrSector kNrSector() { return {}; }
-  void set_nr_sector(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_NrSector::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Rwbs =
-    ::protozero::proto_utils::FieldMetadata<
-      4,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kString,
-      std::string,
-      BlockGetrqFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Rwbs kRwbs() { return {}; }
-  void set_rwbs(const char* data, size_t size) {
-    AppendBytes(FieldMetadata_Rwbs::kFieldId, data, size);
-  }
-  void set_rwbs(std::string value) {
-    static constexpr uint32_t field_id = FieldMetadata_Rwbs::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kString>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Comm =
-    ::protozero::proto_utils::FieldMetadata<
-      5,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kString,
-      std::string,
-      BlockGetrqFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Comm kComm() { return {}; }
-  void set_comm(const char* data, size_t size) {
-    AppendBytes(FieldMetadata_Comm::kFieldId, data, size);
-  }
-  void set_comm(std::string value) {
-    static constexpr uint32_t field_id = FieldMetadata_Comm::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kString>
-        ::Append(*this, field_id, value);
-  }
-};
-
-class BlockDirtyBufferFtraceEvent_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/3, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  BlockDirtyBufferFtraceEvent_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit BlockDirtyBufferFtraceEvent_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit BlockDirtyBufferFtraceEvent_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_dev() const { return at<1>().valid(); }
-  uint64_t dev() const { return at<1>().as_uint64(); }
-  bool has_sector() const { return at<2>().valid(); }
-  uint64_t sector() const { return at<2>().as_uint64(); }
-  bool has_size() const { return at<3>().valid(); }
-  uint64_t size() const { return at<3>().as_uint64(); }
-};
-
-class BlockDirtyBufferFtraceEvent : public ::protozero::Message {
- public:
-  using Decoder = BlockDirtyBufferFtraceEvent_Decoder;
-  enum : int32_t {
-    kDevFieldNumber = 1,
-    kSectorFieldNumber = 2,
-    kSizeFieldNumber = 3,
-  };
-
-  using FieldMetadata_Dev =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      BlockDirtyBufferFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Dev kDev() { return {}; }
-  void set_dev(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Dev::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Sector =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      BlockDirtyBufferFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Sector kSector() { return {}; }
-  void set_sector(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Sector::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Size =
-    ::protozero::proto_utils::FieldMetadata<
-      3,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      BlockDirtyBufferFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Size kSize() { return {}; }
-  void set_size(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Size::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-};
-
-class BlockBioRemapFtraceEvent_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/6, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  BlockBioRemapFtraceEvent_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit BlockBioRemapFtraceEvent_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit BlockBioRemapFtraceEvent_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_dev() const { return at<1>().valid(); }
-  uint64_t dev() const { return at<1>().as_uint64(); }
-  bool has_sector() const { return at<2>().valid(); }
-  uint64_t sector() const { return at<2>().as_uint64(); }
-  bool has_nr_sector() const { return at<3>().valid(); }
-  uint32_t nr_sector() const { return at<3>().as_uint32(); }
-  bool has_old_dev() const { return at<4>().valid(); }
-  uint64_t old_dev() const { return at<4>().as_uint64(); }
-  bool has_old_sector() const { return at<5>().valid(); }
-  uint64_t old_sector() const { return at<5>().as_uint64(); }
-  bool has_rwbs() const { return at<6>().valid(); }
-  ::protozero::ConstChars rwbs() const { return at<6>().as_string(); }
-};
-
-class BlockBioRemapFtraceEvent : public ::protozero::Message {
- public:
-  using Decoder = BlockBioRemapFtraceEvent_Decoder;
-  enum : int32_t {
-    kDevFieldNumber = 1,
-    kSectorFieldNumber = 2,
-    kNrSectorFieldNumber = 3,
-    kOldDevFieldNumber = 4,
-    kOldSectorFieldNumber = 5,
-    kRwbsFieldNumber = 6,
-  };
-
-  using FieldMetadata_Dev =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      BlockBioRemapFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Dev kDev() { return {}; }
-  void set_dev(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Dev::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Sector =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      BlockBioRemapFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Sector kSector() { return {}; }
-  void set_sector(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Sector::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_NrSector =
-    ::protozero::proto_utils::FieldMetadata<
-      3,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      BlockBioRemapFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_NrSector kNrSector() { return {}; }
-  void set_nr_sector(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_NrSector::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_OldDev =
-    ::protozero::proto_utils::FieldMetadata<
-      4,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      BlockBioRemapFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_OldDev kOldDev() { return {}; }
-  void set_old_dev(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_OldDev::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_OldSector =
-    ::protozero::proto_utils::FieldMetadata<
-      5,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      BlockBioRemapFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_OldSector kOldSector() { return {}; }
-  void set_old_sector(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_OldSector::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Rwbs =
-    ::protozero::proto_utils::FieldMetadata<
-      6,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kString,
-      std::string,
-      BlockBioRemapFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Rwbs kRwbs() { return {}; }
-  void set_rwbs(const char* data, size_t size) {
-    AppendBytes(FieldMetadata_Rwbs::kFieldId, data, size);
-  }
-  void set_rwbs(std::string value) {
-    static constexpr uint32_t field_id = FieldMetadata_Rwbs::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kString>
-        ::Append(*this, field_id, value);
-  }
-};
-
-class BlockBioQueueFtraceEvent_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/5, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  BlockBioQueueFtraceEvent_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit BlockBioQueueFtraceEvent_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit BlockBioQueueFtraceEvent_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_dev() const { return at<1>().valid(); }
-  uint64_t dev() const { return at<1>().as_uint64(); }
-  bool has_sector() const { return at<2>().valid(); }
-  uint64_t sector() const { return at<2>().as_uint64(); }
-  bool has_nr_sector() const { return at<3>().valid(); }
-  uint32_t nr_sector() const { return at<3>().as_uint32(); }
-  bool has_rwbs() const { return at<4>().valid(); }
-  ::protozero::ConstChars rwbs() const { return at<4>().as_string(); }
-  bool has_comm() const { return at<5>().valid(); }
-  ::protozero::ConstChars comm() const { return at<5>().as_string(); }
-};
-
-class BlockBioQueueFtraceEvent : public ::protozero::Message {
- public:
-  using Decoder = BlockBioQueueFtraceEvent_Decoder;
-  enum : int32_t {
-    kDevFieldNumber = 1,
-    kSectorFieldNumber = 2,
-    kNrSectorFieldNumber = 3,
-    kRwbsFieldNumber = 4,
-    kCommFieldNumber = 5,
-  };
-
-  using FieldMetadata_Dev =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      BlockBioQueueFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Dev kDev() { return {}; }
-  void set_dev(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Dev::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Sector =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      BlockBioQueueFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Sector kSector() { return {}; }
-  void set_sector(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Sector::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_NrSector =
-    ::protozero::proto_utils::FieldMetadata<
-      3,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      BlockBioQueueFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_NrSector kNrSector() { return {}; }
-  void set_nr_sector(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_NrSector::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Rwbs =
-    ::protozero::proto_utils::FieldMetadata<
-      4,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kString,
-      std::string,
-      BlockBioQueueFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Rwbs kRwbs() { return {}; }
-  void set_rwbs(const char* data, size_t size) {
-    AppendBytes(FieldMetadata_Rwbs::kFieldId, data, size);
-  }
-  void set_rwbs(std::string value) {
-    static constexpr uint32_t field_id = FieldMetadata_Rwbs::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kString>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Comm =
-    ::protozero::proto_utils::FieldMetadata<
-      5,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kString,
-      std::string,
-      BlockBioQueueFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Comm kComm() { return {}; }
-  void set_comm(const char* data, size_t size) {
-    AppendBytes(FieldMetadata_Comm::kFieldId, data, size);
-  }
-  void set_comm(std::string value) {
-    static constexpr uint32_t field_id = FieldMetadata_Comm::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kString>
-        ::Append(*this, field_id, value);
-  }
-};
-
-class BlockBioFrontmergeFtraceEvent_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/5, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  BlockBioFrontmergeFtraceEvent_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit BlockBioFrontmergeFtraceEvent_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit BlockBioFrontmergeFtraceEvent_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_dev() const { return at<1>().valid(); }
-  uint64_t dev() const { return at<1>().as_uint64(); }
-  bool has_sector() const { return at<2>().valid(); }
-  uint64_t sector() const { return at<2>().as_uint64(); }
-  bool has_nr_sector() const { return at<3>().valid(); }
-  uint32_t nr_sector() const { return at<3>().as_uint32(); }
-  bool has_rwbs() const { return at<4>().valid(); }
-  ::protozero::ConstChars rwbs() const { return at<4>().as_string(); }
-  bool has_comm() const { return at<5>().valid(); }
-  ::protozero::ConstChars comm() const { return at<5>().as_string(); }
-};
-
-class BlockBioFrontmergeFtraceEvent : public ::protozero::Message {
- public:
-  using Decoder = BlockBioFrontmergeFtraceEvent_Decoder;
-  enum : int32_t {
-    kDevFieldNumber = 1,
-    kSectorFieldNumber = 2,
-    kNrSectorFieldNumber = 3,
-    kRwbsFieldNumber = 4,
-    kCommFieldNumber = 5,
-  };
-
-  using FieldMetadata_Dev =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      BlockBioFrontmergeFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Dev kDev() { return {}; }
-  void set_dev(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Dev::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Sector =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      BlockBioFrontmergeFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Sector kSector() { return {}; }
-  void set_sector(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Sector::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_NrSector =
-    ::protozero::proto_utils::FieldMetadata<
-      3,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      BlockBioFrontmergeFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_NrSector kNrSector() { return {}; }
-  void set_nr_sector(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_NrSector::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Rwbs =
-    ::protozero::proto_utils::FieldMetadata<
-      4,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kString,
-      std::string,
-      BlockBioFrontmergeFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Rwbs kRwbs() { return {}; }
-  void set_rwbs(const char* data, size_t size) {
-    AppendBytes(FieldMetadata_Rwbs::kFieldId, data, size);
-  }
-  void set_rwbs(std::string value) {
-    static constexpr uint32_t field_id = FieldMetadata_Rwbs::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kString>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Comm =
-    ::protozero::proto_utils::FieldMetadata<
-      5,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kString,
-      std::string,
-      BlockBioFrontmergeFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Comm kComm() { return {}; }
-  void set_comm(const char* data, size_t size) {
-    AppendBytes(FieldMetadata_Comm::kFieldId, data, size);
-  }
-  void set_comm(std::string value) {
-    static constexpr uint32_t field_id = FieldMetadata_Comm::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kString>
-        ::Append(*this, field_id, value);
-  }
-};
-
-class BlockBioCompleteFtraceEvent_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/5, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  BlockBioCompleteFtraceEvent_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit BlockBioCompleteFtraceEvent_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit BlockBioCompleteFtraceEvent_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_dev() const { return at<1>().valid(); }
-  uint64_t dev() const { return at<1>().as_uint64(); }
-  bool has_sector() const { return at<2>().valid(); }
-  uint64_t sector() const { return at<2>().as_uint64(); }
-  bool has_nr_sector() const { return at<3>().valid(); }
-  uint32_t nr_sector() const { return at<3>().as_uint32(); }
-  bool has_error() const { return at<4>().valid(); }
-  int32_t error() const { return at<4>().as_int32(); }
-  bool has_rwbs() const { return at<5>().valid(); }
-  ::protozero::ConstChars rwbs() const { return at<5>().as_string(); }
-};
-
-class BlockBioCompleteFtraceEvent : public ::protozero::Message {
- public:
-  using Decoder = BlockBioCompleteFtraceEvent_Decoder;
-  enum : int32_t {
-    kDevFieldNumber = 1,
-    kSectorFieldNumber = 2,
-    kNrSectorFieldNumber = 3,
-    kErrorFieldNumber = 4,
-    kRwbsFieldNumber = 5,
-  };
-
-  using FieldMetadata_Dev =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      BlockBioCompleteFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Dev kDev() { return {}; }
-  void set_dev(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Dev::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Sector =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      BlockBioCompleteFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Sector kSector() { return {}; }
-  void set_sector(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Sector::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_NrSector =
-    ::protozero::proto_utils::FieldMetadata<
-      3,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      BlockBioCompleteFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_NrSector kNrSector() { return {}; }
-  void set_nr_sector(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_NrSector::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Error =
-    ::protozero::proto_utils::FieldMetadata<
-      4,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt32,
-      int32_t,
-      BlockBioCompleteFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Error kError() { return {}; }
-  void set_error(int32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Error::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Rwbs =
-    ::protozero::proto_utils::FieldMetadata<
-      5,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kString,
-      std::string,
-      BlockBioCompleteFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Rwbs kRwbs() { return {}; }
-  void set_rwbs(const char* data, size_t size) {
-    AppendBytes(FieldMetadata_Rwbs::kFieldId, data, size);
-  }
-  void set_rwbs(std::string value) {
-    static constexpr uint32_t field_id = FieldMetadata_Rwbs::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kString>
-        ::Append(*this, field_id, value);
-  }
-};
-
-class BlockBioBounceFtraceEvent_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/5, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  BlockBioBounceFtraceEvent_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit BlockBioBounceFtraceEvent_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit BlockBioBounceFtraceEvent_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_dev() const { return at<1>().valid(); }
-  uint64_t dev() const { return at<1>().as_uint64(); }
-  bool has_sector() const { return at<2>().valid(); }
-  uint64_t sector() const { return at<2>().as_uint64(); }
-  bool has_nr_sector() const { return at<3>().valid(); }
-  uint32_t nr_sector() const { return at<3>().as_uint32(); }
-  bool has_rwbs() const { return at<4>().valid(); }
-  ::protozero::ConstChars rwbs() const { return at<4>().as_string(); }
-  bool has_comm() const { return at<5>().valid(); }
-  ::protozero::ConstChars comm() const { return at<5>().as_string(); }
-};
-
-class BlockBioBounceFtraceEvent : public ::protozero::Message {
- public:
-  using Decoder = BlockBioBounceFtraceEvent_Decoder;
-  enum : int32_t {
-    kDevFieldNumber = 1,
-    kSectorFieldNumber = 2,
-    kNrSectorFieldNumber = 3,
-    kRwbsFieldNumber = 4,
-    kCommFieldNumber = 5,
-  };
-
-  using FieldMetadata_Dev =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      BlockBioBounceFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Dev kDev() { return {}; }
-  void set_dev(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Dev::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Sector =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      BlockBioBounceFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Sector kSector() { return {}; }
-  void set_sector(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Sector::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_NrSector =
-    ::protozero::proto_utils::FieldMetadata<
-      3,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      BlockBioBounceFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_NrSector kNrSector() { return {}; }
-  void set_nr_sector(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_NrSector::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Rwbs =
-    ::protozero::proto_utils::FieldMetadata<
-      4,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kString,
-      std::string,
-      BlockBioBounceFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Rwbs kRwbs() { return {}; }
-  void set_rwbs(const char* data, size_t size) {
-    AppendBytes(FieldMetadata_Rwbs::kFieldId, data, size);
-  }
-  void set_rwbs(std::string value) {
-    static constexpr uint32_t field_id = FieldMetadata_Rwbs::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kString>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Comm =
-    ::protozero::proto_utils::FieldMetadata<
-      5,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kString,
-      std::string,
-      BlockBioBounceFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Comm kComm() { return {}; }
-  void set_comm(const char* data, size_t size) {
-    AppendBytes(FieldMetadata_Comm::kFieldId, data, size);
-  }
-  void set_comm(std::string value) {
-    static constexpr uint32_t field_id = FieldMetadata_Comm::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kString>
-        ::Append(*this, field_id, value);
-  }
-};
-
-class BlockBioBackmergeFtraceEvent_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/5, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  BlockBioBackmergeFtraceEvent_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit BlockBioBackmergeFtraceEvent_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit BlockBioBackmergeFtraceEvent_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_dev() const { return at<1>().valid(); }
-  uint64_t dev() const { return at<1>().as_uint64(); }
-  bool has_sector() const { return at<2>().valid(); }
-  uint64_t sector() const { return at<2>().as_uint64(); }
-  bool has_nr_sector() const { return at<3>().valid(); }
-  uint32_t nr_sector() const { return at<3>().as_uint32(); }
-  bool has_rwbs() const { return at<4>().valid(); }
-  ::protozero::ConstChars rwbs() const { return at<4>().as_string(); }
-  bool has_comm() const { return at<5>().valid(); }
-  ::protozero::ConstChars comm() const { return at<5>().as_string(); }
-};
-
-class BlockBioBackmergeFtraceEvent : public ::protozero::Message {
- public:
-  using Decoder = BlockBioBackmergeFtraceEvent_Decoder;
-  enum : int32_t {
-    kDevFieldNumber = 1,
-    kSectorFieldNumber = 2,
-    kNrSectorFieldNumber = 3,
-    kRwbsFieldNumber = 4,
-    kCommFieldNumber = 5,
-  };
-
-  using FieldMetadata_Dev =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      BlockBioBackmergeFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Dev kDev() { return {}; }
-  void set_dev(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Dev::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Sector =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      BlockBioBackmergeFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Sector kSector() { return {}; }
-  void set_sector(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Sector::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_NrSector =
-    ::protozero::proto_utils::FieldMetadata<
-      3,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      BlockBioBackmergeFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_NrSector kNrSector() { return {}; }
-  void set_nr_sector(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_NrSector::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Rwbs =
-    ::protozero::proto_utils::FieldMetadata<
-      4,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kString,
-      std::string,
-      BlockBioBackmergeFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Rwbs kRwbs() { return {}; }
-  void set_rwbs(const char* data, size_t size) {
-    AppendBytes(FieldMetadata_Rwbs::kFieldId, data, size);
-  }
-  void set_rwbs(std::string value) {
-    static constexpr uint32_t field_id = FieldMetadata_Rwbs::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kString>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Comm =
-    ::protozero::proto_utils::FieldMetadata<
-      5,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kString,
-      std::string,
-      BlockBioBackmergeFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Comm kComm() { return {}; }
-  void set_comm(const char* data, size_t size) {
-    AppendBytes(FieldMetadata_Comm::kFieldId, data, size);
-  }
-  void set_comm(std::string value) {
-    static constexpr uint32_t field_id = FieldMetadata_Comm::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kString>
-        ::Append(*this, field_id, value);
-  }
-};
-
-class BlockRqIssueFtraceEvent_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/7, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  BlockRqIssueFtraceEvent_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit BlockRqIssueFtraceEvent_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit BlockRqIssueFtraceEvent_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_dev() const { return at<1>().valid(); }
-  uint64_t dev() const { return at<1>().as_uint64(); }
-  bool has_sector() const { return at<2>().valid(); }
-  uint64_t sector() const { return at<2>().as_uint64(); }
-  bool has_nr_sector() const { return at<3>().valid(); }
-  uint32_t nr_sector() const { return at<3>().as_uint32(); }
-  bool has_bytes() const { return at<4>().valid(); }
-  uint32_t bytes() const { return at<4>().as_uint32(); }
-  bool has_rwbs() const { return at<5>().valid(); }
-  ::protozero::ConstChars rwbs() const { return at<5>().as_string(); }
-  bool has_comm() const { return at<6>().valid(); }
-  ::protozero::ConstChars comm() const { return at<6>().as_string(); }
-  bool has_cmd() const { return at<7>().valid(); }
-  ::protozero::ConstChars cmd() const { return at<7>().as_string(); }
-};
-
-class BlockRqIssueFtraceEvent : public ::protozero::Message {
- public:
-  using Decoder = BlockRqIssueFtraceEvent_Decoder;
-  enum : int32_t {
-    kDevFieldNumber = 1,
-    kSectorFieldNumber = 2,
-    kNrSectorFieldNumber = 3,
-    kBytesFieldNumber = 4,
-    kRwbsFieldNumber = 5,
-    kCommFieldNumber = 6,
-    kCmdFieldNumber = 7,
-  };
-
-  using FieldMetadata_Dev =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      BlockRqIssueFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Dev kDev() { return {}; }
-  void set_dev(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Dev::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Sector =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      BlockRqIssueFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Sector kSector() { return {}; }
-  void set_sector(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Sector::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_NrSector =
-    ::protozero::proto_utils::FieldMetadata<
-      3,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      BlockRqIssueFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_NrSector kNrSector() { return {}; }
-  void set_nr_sector(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_NrSector::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Bytes =
-    ::protozero::proto_utils::FieldMetadata<
-      4,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      BlockRqIssueFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Bytes kBytes() { return {}; }
-  void set_bytes(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Bytes::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Rwbs =
-    ::protozero::proto_utils::FieldMetadata<
-      5,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kString,
-      std::string,
-      BlockRqIssueFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Rwbs kRwbs() { return {}; }
-  void set_rwbs(const char* data, size_t size) {
-    AppendBytes(FieldMetadata_Rwbs::kFieldId, data, size);
-  }
-  void set_rwbs(std::string value) {
-    static constexpr uint32_t field_id = FieldMetadata_Rwbs::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kString>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Comm =
-    ::protozero::proto_utils::FieldMetadata<
-      6,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kString,
-      std::string,
-      BlockRqIssueFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Comm kComm() { return {}; }
-  void set_comm(const char* data, size_t size) {
-    AppendBytes(FieldMetadata_Comm::kFieldId, data, size);
-  }
-  void set_comm(std::string value) {
-    static constexpr uint32_t field_id = FieldMetadata_Comm::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kString>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Cmd =
-    ::protozero::proto_utils::FieldMetadata<
-      7,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kString,
-      std::string,
-      BlockRqIssueFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Cmd kCmd() { return {}; }
-  void set_cmd(const char* data, size_t size) {
-    AppendBytes(FieldMetadata_Cmd::kFieldId, data, size);
-  }
-  void set_cmd(std::string value) {
-    static constexpr uint32_t field_id = FieldMetadata_Cmd::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kString>
-        ::Append(*this, field_id, value);
-  }
-};
-
-} // Namespace.
-} // Namespace.
-} // Namespace.
-#endif  // Include guard.
-// gen_amalgamated begin header: gen/protos/perfetto/trace/ftrace/cgroup.pbzero.h
-// Autogenerated by the ProtoZero compiler plugin. DO NOT EDIT.
-
-#ifndef PERFETTO_PROTOS_PROTOS_PERFETTO_TRACE_FTRACE_CGROUP_PROTO_H_
-#define PERFETTO_PROTOS_PROTOS_PERFETTO_TRACE_FTRACE_CGROUP_PROTO_H_
-
-#include <stddef.h>
-#include <stdint.h>
-
-// gen_amalgamated expanded: #include "perfetto/protozero/field_writer.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/message.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/packed_repeated_fields.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/proto_decoder.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/proto_utils.h"
-
-namespace perfetto {
-namespace protos {
-namespace pbzero {
-
-
-class CgroupSetupRootFtraceEvent_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/3, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  CgroupSetupRootFtraceEvent_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit CgroupSetupRootFtraceEvent_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit CgroupSetupRootFtraceEvent_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_root() const { return at<1>().valid(); }
-  int32_t root() const { return at<1>().as_int32(); }
-  bool has_ss_mask() const { return at<2>().valid(); }
-  uint32_t ss_mask() const { return at<2>().as_uint32(); }
-  bool has_name() const { return at<3>().valid(); }
-  ::protozero::ConstChars name() const { return at<3>().as_string(); }
-};
-
-class CgroupSetupRootFtraceEvent : public ::protozero::Message {
- public:
-  using Decoder = CgroupSetupRootFtraceEvent_Decoder;
-  enum : int32_t {
-    kRootFieldNumber = 1,
-    kSsMaskFieldNumber = 2,
-    kNameFieldNumber = 3,
-  };
-
-  using FieldMetadata_Root =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt32,
-      int32_t,
-      CgroupSetupRootFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Root kRoot() { return {}; }
-  void set_root(int32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Root::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_SsMask =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      CgroupSetupRootFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_SsMask kSsMask() { return {}; }
-  void set_ss_mask(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_SsMask::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Name =
-    ::protozero::proto_utils::FieldMetadata<
-      3,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kString,
-      std::string,
-      CgroupSetupRootFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Name kName() { return {}; }
-  void set_name(const char* data, size_t size) {
-    AppendBytes(FieldMetadata_Name::kFieldId, data, size);
-  }
-  void set_name(std::string value) {
-    static constexpr uint32_t field_id = FieldMetadata_Name::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kString>
-        ::Append(*this, field_id, value);
-  }
-};
-
-class CgroupRenameFtraceEvent_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/3, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  CgroupRenameFtraceEvent_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit CgroupRenameFtraceEvent_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit CgroupRenameFtraceEvent_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_root() const { return at<1>().valid(); }
-  int32_t root() const { return at<1>().as_int32(); }
-  bool has_id() const { return at<2>().valid(); }
-  int32_t id() const { return at<2>().as_int32(); }
-  bool has_cname() const { return at<3>().valid(); }
-  ::protozero::ConstChars cname() const { return at<3>().as_string(); }
-};
-
-class CgroupRenameFtraceEvent : public ::protozero::Message {
- public:
-  using Decoder = CgroupRenameFtraceEvent_Decoder;
-  enum : int32_t {
-    kRootFieldNumber = 1,
-    kIdFieldNumber = 2,
-    kCnameFieldNumber = 3,
-  };
-
-  using FieldMetadata_Root =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt32,
-      int32_t,
-      CgroupRenameFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Root kRoot() { return {}; }
-  void set_root(int32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Root::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Id =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt32,
-      int32_t,
-      CgroupRenameFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Id kId() { return {}; }
-  void set_id(int32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Id::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Cname =
-    ::protozero::proto_utils::FieldMetadata<
-      3,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kString,
-      std::string,
-      CgroupRenameFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Cname kCname() { return {}; }
-  void set_cname(const char* data, size_t size) {
-    AppendBytes(FieldMetadata_Cname::kFieldId, data, size);
-  }
-  void set_cname(std::string value) {
-    static constexpr uint32_t field_id = FieldMetadata_Cname::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kString>
-        ::Append(*this, field_id, value);
-  }
-};
-
-class CgroupReleaseFtraceEvent_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/3, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  CgroupReleaseFtraceEvent_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit CgroupReleaseFtraceEvent_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit CgroupReleaseFtraceEvent_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_root() const { return at<1>().valid(); }
-  int32_t root() const { return at<1>().as_int32(); }
-  bool has_id() const { return at<2>().valid(); }
-  int32_t id() const { return at<2>().as_int32(); }
-  bool has_cname() const { return at<3>().valid(); }
-  ::protozero::ConstChars cname() const { return at<3>().as_string(); }
-};
-
-class CgroupReleaseFtraceEvent : public ::protozero::Message {
- public:
-  using Decoder = CgroupReleaseFtraceEvent_Decoder;
-  enum : int32_t {
-    kRootFieldNumber = 1,
-    kIdFieldNumber = 2,
-    kCnameFieldNumber = 3,
-  };
-
-  using FieldMetadata_Root =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt32,
-      int32_t,
-      CgroupReleaseFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Root kRoot() { return {}; }
-  void set_root(int32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Root::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Id =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt32,
-      int32_t,
-      CgroupReleaseFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Id kId() { return {}; }
-  void set_id(int32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Id::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Cname =
-    ::protozero::proto_utils::FieldMetadata<
-      3,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kString,
-      std::string,
-      CgroupReleaseFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Cname kCname() { return {}; }
-  void set_cname(const char* data, size_t size) {
-    AppendBytes(FieldMetadata_Cname::kFieldId, data, size);
-  }
-  void set_cname(std::string value) {
-    static constexpr uint32_t field_id = FieldMetadata_Cname::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kString>
-        ::Append(*this, field_id, value);
-  }
-};
-
-class CgroupDestroyRootFtraceEvent_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/3, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  CgroupDestroyRootFtraceEvent_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit CgroupDestroyRootFtraceEvent_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit CgroupDestroyRootFtraceEvent_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_root() const { return at<1>().valid(); }
-  int32_t root() const { return at<1>().as_int32(); }
-  bool has_ss_mask() const { return at<2>().valid(); }
-  uint32_t ss_mask() const { return at<2>().as_uint32(); }
-  bool has_name() const { return at<3>().valid(); }
-  ::protozero::ConstChars name() const { return at<3>().as_string(); }
-};
-
-class CgroupDestroyRootFtraceEvent : public ::protozero::Message {
- public:
-  using Decoder = CgroupDestroyRootFtraceEvent_Decoder;
-  enum : int32_t {
-    kRootFieldNumber = 1,
-    kSsMaskFieldNumber = 2,
-    kNameFieldNumber = 3,
-  };
-
-  using FieldMetadata_Root =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt32,
-      int32_t,
-      CgroupDestroyRootFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Root kRoot() { return {}; }
-  void set_root(int32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Root::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_SsMask =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      CgroupDestroyRootFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_SsMask kSsMask() { return {}; }
-  void set_ss_mask(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_SsMask::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Name =
-    ::protozero::proto_utils::FieldMetadata<
-      3,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kString,
-      std::string,
-      CgroupDestroyRootFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Name kName() { return {}; }
-  void set_name(const char* data, size_t size) {
-    AppendBytes(FieldMetadata_Name::kFieldId, data, size);
-  }
-  void set_name(std::string value) {
-    static constexpr uint32_t field_id = FieldMetadata_Name::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kString>
-        ::Append(*this, field_id, value);
-  }
-};
-
-class CgroupTransferTasksFtraceEvent_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/5, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  CgroupTransferTasksFtraceEvent_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit CgroupTransferTasksFtraceEvent_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit CgroupTransferTasksFtraceEvent_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_dst_root() const { return at<1>().valid(); }
-  int32_t dst_root() const { return at<1>().as_int32(); }
-  bool has_dst_id() const { return at<2>().valid(); }
-  int32_t dst_id() const { return at<2>().as_int32(); }
-  bool has_pid() const { return at<3>().valid(); }
-  int32_t pid() const { return at<3>().as_int32(); }
-  bool has_comm() const { return at<4>().valid(); }
-  ::protozero::ConstChars comm() const { return at<4>().as_string(); }
-  bool has_cname() const { return at<5>().valid(); }
-  ::protozero::ConstChars cname() const { return at<5>().as_string(); }
-};
-
-class CgroupTransferTasksFtraceEvent : public ::protozero::Message {
- public:
-  using Decoder = CgroupTransferTasksFtraceEvent_Decoder;
-  enum : int32_t {
-    kDstRootFieldNumber = 1,
-    kDstIdFieldNumber = 2,
-    kPidFieldNumber = 3,
-    kCommFieldNumber = 4,
-    kCnameFieldNumber = 5,
-  };
-
-  using FieldMetadata_DstRoot =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt32,
-      int32_t,
-      CgroupTransferTasksFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_DstRoot kDstRoot() { return {}; }
-  void set_dst_root(int32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_DstRoot::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_DstId =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt32,
-      int32_t,
-      CgroupTransferTasksFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_DstId kDstId() { return {}; }
-  void set_dst_id(int32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_DstId::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Pid =
-    ::protozero::proto_utils::FieldMetadata<
-      3,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt32,
-      int32_t,
-      CgroupTransferTasksFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Pid kPid() { return {}; }
-  void set_pid(int32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Pid::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Comm =
-    ::protozero::proto_utils::FieldMetadata<
-      4,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kString,
-      std::string,
-      CgroupTransferTasksFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Comm kComm() { return {}; }
-  void set_comm(const char* data, size_t size) {
-    AppendBytes(FieldMetadata_Comm::kFieldId, data, size);
-  }
-  void set_comm(std::string value) {
-    static constexpr uint32_t field_id = FieldMetadata_Comm::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kString>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Cname =
-    ::protozero::proto_utils::FieldMetadata<
-      5,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kString,
-      std::string,
-      CgroupTransferTasksFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Cname kCname() { return {}; }
-  void set_cname(const char* data, size_t size) {
-    AppendBytes(FieldMetadata_Cname::kFieldId, data, size);
-  }
-  void set_cname(std::string value) {
-    static constexpr uint32_t field_id = FieldMetadata_Cname::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kString>
-        ::Append(*this, field_id, value);
-  }
-};
-
-class CgroupRmdirFtraceEvent_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/3, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  CgroupRmdirFtraceEvent_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit CgroupRmdirFtraceEvent_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit CgroupRmdirFtraceEvent_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_root() const { return at<1>().valid(); }
-  int32_t root() const { return at<1>().as_int32(); }
-  bool has_id() const { return at<2>().valid(); }
-  int32_t id() const { return at<2>().as_int32(); }
-  bool has_cname() const { return at<3>().valid(); }
-  ::protozero::ConstChars cname() const { return at<3>().as_string(); }
-};
-
-class CgroupRmdirFtraceEvent : public ::protozero::Message {
- public:
-  using Decoder = CgroupRmdirFtraceEvent_Decoder;
-  enum : int32_t {
-    kRootFieldNumber = 1,
-    kIdFieldNumber = 2,
-    kCnameFieldNumber = 3,
-  };
-
-  using FieldMetadata_Root =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt32,
-      int32_t,
-      CgroupRmdirFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Root kRoot() { return {}; }
-  void set_root(int32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Root::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Id =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt32,
-      int32_t,
-      CgroupRmdirFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Id kId() { return {}; }
-  void set_id(int32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Id::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Cname =
-    ::protozero::proto_utils::FieldMetadata<
-      3,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kString,
-      std::string,
-      CgroupRmdirFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Cname kCname() { return {}; }
-  void set_cname(const char* data, size_t size) {
-    AppendBytes(FieldMetadata_Cname::kFieldId, data, size);
-  }
-  void set_cname(std::string value) {
-    static constexpr uint32_t field_id = FieldMetadata_Cname::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kString>
-        ::Append(*this, field_id, value);
-  }
-};
-
-class CgroupRemountFtraceEvent_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/3, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  CgroupRemountFtraceEvent_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit CgroupRemountFtraceEvent_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit CgroupRemountFtraceEvent_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_root() const { return at<1>().valid(); }
-  int32_t root() const { return at<1>().as_int32(); }
-  bool has_ss_mask() const { return at<2>().valid(); }
-  uint32_t ss_mask() const { return at<2>().as_uint32(); }
-  bool has_name() const { return at<3>().valid(); }
-  ::protozero::ConstChars name() const { return at<3>().as_string(); }
-};
-
-class CgroupRemountFtraceEvent : public ::protozero::Message {
- public:
-  using Decoder = CgroupRemountFtraceEvent_Decoder;
-  enum : int32_t {
-    kRootFieldNumber = 1,
-    kSsMaskFieldNumber = 2,
-    kNameFieldNumber = 3,
-  };
-
-  using FieldMetadata_Root =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt32,
-      int32_t,
-      CgroupRemountFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Root kRoot() { return {}; }
-  void set_root(int32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Root::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_SsMask =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      CgroupRemountFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_SsMask kSsMask() { return {}; }
-  void set_ss_mask(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_SsMask::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Name =
-    ::protozero::proto_utils::FieldMetadata<
-      3,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kString,
-      std::string,
-      CgroupRemountFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Name kName() { return {}; }
-  void set_name(const char* data, size_t size) {
-    AppendBytes(FieldMetadata_Name::kFieldId, data, size);
-  }
-  void set_name(std::string value) {
-    static constexpr uint32_t field_id = FieldMetadata_Name::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kString>
-        ::Append(*this, field_id, value);
-  }
-};
-
-class CgroupMkdirFtraceEvent_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/3, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  CgroupMkdirFtraceEvent_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit CgroupMkdirFtraceEvent_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit CgroupMkdirFtraceEvent_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_root() const { return at<1>().valid(); }
-  int32_t root() const { return at<1>().as_int32(); }
-  bool has_id() const { return at<2>().valid(); }
-  int32_t id() const { return at<2>().as_int32(); }
-  bool has_cname() const { return at<3>().valid(); }
-  ::protozero::ConstChars cname() const { return at<3>().as_string(); }
-};
-
-class CgroupMkdirFtraceEvent : public ::protozero::Message {
- public:
-  using Decoder = CgroupMkdirFtraceEvent_Decoder;
-  enum : int32_t {
-    kRootFieldNumber = 1,
-    kIdFieldNumber = 2,
-    kCnameFieldNumber = 3,
-  };
-
-  using FieldMetadata_Root =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt32,
-      int32_t,
-      CgroupMkdirFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Root kRoot() { return {}; }
-  void set_root(int32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Root::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Id =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt32,
-      int32_t,
-      CgroupMkdirFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Id kId() { return {}; }
-  void set_id(int32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Id::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Cname =
-    ::protozero::proto_utils::FieldMetadata<
-      3,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kString,
-      std::string,
-      CgroupMkdirFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Cname kCname() { return {}; }
-  void set_cname(const char* data, size_t size) {
-    AppendBytes(FieldMetadata_Cname::kFieldId, data, size);
-  }
-  void set_cname(std::string value) {
-    static constexpr uint32_t field_id = FieldMetadata_Cname::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kString>
-        ::Append(*this, field_id, value);
-  }
-};
-
-class CgroupAttachTaskFtraceEvent_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/5, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  CgroupAttachTaskFtraceEvent_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit CgroupAttachTaskFtraceEvent_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit CgroupAttachTaskFtraceEvent_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_dst_root() const { return at<1>().valid(); }
-  int32_t dst_root() const { return at<1>().as_int32(); }
-  bool has_dst_id() const { return at<2>().valid(); }
-  int32_t dst_id() const { return at<2>().as_int32(); }
-  bool has_pid() const { return at<3>().valid(); }
-  int32_t pid() const { return at<3>().as_int32(); }
-  bool has_comm() const { return at<4>().valid(); }
-  ::protozero::ConstChars comm() const { return at<4>().as_string(); }
-  bool has_cname() const { return at<5>().valid(); }
-  ::protozero::ConstChars cname() const { return at<5>().as_string(); }
-};
-
-class CgroupAttachTaskFtraceEvent : public ::protozero::Message {
- public:
-  using Decoder = CgroupAttachTaskFtraceEvent_Decoder;
-  enum : int32_t {
-    kDstRootFieldNumber = 1,
-    kDstIdFieldNumber = 2,
-    kPidFieldNumber = 3,
-    kCommFieldNumber = 4,
-    kCnameFieldNumber = 5,
-  };
-
-  using FieldMetadata_DstRoot =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt32,
-      int32_t,
-      CgroupAttachTaskFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_DstRoot kDstRoot() { return {}; }
-  void set_dst_root(int32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_DstRoot::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_DstId =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt32,
-      int32_t,
-      CgroupAttachTaskFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_DstId kDstId() { return {}; }
-  void set_dst_id(int32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_DstId::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Pid =
-    ::protozero::proto_utils::FieldMetadata<
-      3,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt32,
-      int32_t,
-      CgroupAttachTaskFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Pid kPid() { return {}; }
-  void set_pid(int32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Pid::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Comm =
-    ::protozero::proto_utils::FieldMetadata<
-      4,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kString,
-      std::string,
-      CgroupAttachTaskFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Comm kComm() { return {}; }
-  void set_comm(const char* data, size_t size) {
-    AppendBytes(FieldMetadata_Comm::kFieldId, data, size);
-  }
-  void set_comm(std::string value) {
-    static constexpr uint32_t field_id = FieldMetadata_Comm::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kString>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Cname =
-    ::protozero::proto_utils::FieldMetadata<
-      5,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kString,
-      std::string,
-      CgroupAttachTaskFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Cname kCname() { return {}; }
-  void set_cname(const char* data, size_t size) {
-    AppendBytes(FieldMetadata_Cname::kFieldId, data, size);
-  }
-  void set_cname(std::string value) {
-    static constexpr uint32_t field_id = FieldMetadata_Cname::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kString>
-        ::Append(*this, field_id, value);
-  }
-};
-
-} // Namespace.
-} // Namespace.
-} // Namespace.
-#endif  // Include guard.
-// gen_amalgamated begin header: gen/protos/perfetto/trace/ftrace/clk.pbzero.h
-// Autogenerated by the ProtoZero compiler plugin. DO NOT EDIT.
-
-#ifndef PERFETTO_PROTOS_PROTOS_PERFETTO_TRACE_FTRACE_CLK_PROTO_H_
-#define PERFETTO_PROTOS_PROTOS_PERFETTO_TRACE_FTRACE_CLK_PROTO_H_
-
-#include <stddef.h>
-#include <stdint.h>
-
-// gen_amalgamated expanded: #include "perfetto/protozero/field_writer.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/message.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/packed_repeated_fields.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/proto_decoder.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/proto_utils.h"
-
-namespace perfetto {
-namespace protos {
-namespace pbzero {
-
-
-class ClkSetRateFtraceEvent_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/2, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  ClkSetRateFtraceEvent_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit ClkSetRateFtraceEvent_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit ClkSetRateFtraceEvent_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_name() const { return at<1>().valid(); }
-  ::protozero::ConstChars name() const { return at<1>().as_string(); }
-  bool has_rate() const { return at<2>().valid(); }
-  uint64_t rate() const { return at<2>().as_uint64(); }
-};
-
-class ClkSetRateFtraceEvent : public ::protozero::Message {
- public:
-  using Decoder = ClkSetRateFtraceEvent_Decoder;
-  enum : int32_t {
-    kNameFieldNumber = 1,
-    kRateFieldNumber = 2,
-  };
-
-  using FieldMetadata_Name =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kString,
-      std::string,
-      ClkSetRateFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Name kName() { return {}; }
-  void set_name(const char* data, size_t size) {
-    AppendBytes(FieldMetadata_Name::kFieldId, data, size);
-  }
-  void set_name(std::string value) {
-    static constexpr uint32_t field_id = FieldMetadata_Name::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kString>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Rate =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      ClkSetRateFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Rate kRate() { return {}; }
-  void set_rate(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Rate::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-};
-
-class ClkDisableFtraceEvent_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/1, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  ClkDisableFtraceEvent_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit ClkDisableFtraceEvent_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit ClkDisableFtraceEvent_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_name() const { return at<1>().valid(); }
-  ::protozero::ConstChars name() const { return at<1>().as_string(); }
-};
-
-class ClkDisableFtraceEvent : public ::protozero::Message {
- public:
-  using Decoder = ClkDisableFtraceEvent_Decoder;
-  enum : int32_t {
-    kNameFieldNumber = 1,
-  };
-
-  using FieldMetadata_Name =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kString,
-      std::string,
-      ClkDisableFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Name kName() { return {}; }
-  void set_name(const char* data, size_t size) {
-    AppendBytes(FieldMetadata_Name::kFieldId, data, size);
-  }
-  void set_name(std::string value) {
-    static constexpr uint32_t field_id = FieldMetadata_Name::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kString>
-        ::Append(*this, field_id, value);
-  }
-};
-
-class ClkEnableFtraceEvent_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/1, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  ClkEnableFtraceEvent_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit ClkEnableFtraceEvent_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit ClkEnableFtraceEvent_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_name() const { return at<1>().valid(); }
-  ::protozero::ConstChars name() const { return at<1>().as_string(); }
-};
-
-class ClkEnableFtraceEvent : public ::protozero::Message {
- public:
-  using Decoder = ClkEnableFtraceEvent_Decoder;
-  enum : int32_t {
-    kNameFieldNumber = 1,
-  };
-
-  using FieldMetadata_Name =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kString,
-      std::string,
-      ClkEnableFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Name kName() { return {}; }
-  void set_name(const char* data, size_t size) {
-    AppendBytes(FieldMetadata_Name::kFieldId, data, size);
-  }
-  void set_name(std::string value) {
-    static constexpr uint32_t field_id = FieldMetadata_Name::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kString>
-        ::Append(*this, field_id, value);
-  }
-};
-
-} // Namespace.
-} // Namespace.
-} // Namespace.
-#endif  // Include guard.
-// gen_amalgamated begin header: gen/protos/perfetto/trace/ftrace/compaction.pbzero.h
-// Autogenerated by the ProtoZero compiler plugin. DO NOT EDIT.
-
-#ifndef PERFETTO_PROTOS_PROTOS_PERFETTO_TRACE_FTRACE_COMPACTION_PROTO_H_
-#define PERFETTO_PROTOS_PROTOS_PERFETTO_TRACE_FTRACE_COMPACTION_PROTO_H_
-
-#include <stddef.h>
-#include <stdint.h>
-
-// gen_amalgamated expanded: #include "perfetto/protozero/field_writer.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/message.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/packed_repeated_fields.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/proto_decoder.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/proto_utils.h"
-
-namespace perfetto {
-namespace protos {
-namespace pbzero {
-
-
-class MmCompactionWakeupKcompactdFtraceEvent_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/3, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  MmCompactionWakeupKcompactdFtraceEvent_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit MmCompactionWakeupKcompactdFtraceEvent_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit MmCompactionWakeupKcompactdFtraceEvent_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_nid() const { return at<1>().valid(); }
-  int32_t nid() const { return at<1>().as_int32(); }
-  bool has_order() const { return at<2>().valid(); }
-  int32_t order() const { return at<2>().as_int32(); }
-  bool has_classzone_idx() const { return at<3>().valid(); }
-  uint32_t classzone_idx() const { return at<3>().as_uint32(); }
-};
-
-class MmCompactionWakeupKcompactdFtraceEvent : public ::protozero::Message {
- public:
-  using Decoder = MmCompactionWakeupKcompactdFtraceEvent_Decoder;
-  enum : int32_t {
-    kNidFieldNumber = 1,
-    kOrderFieldNumber = 2,
-    kClasszoneIdxFieldNumber = 3,
-  };
-
-  using FieldMetadata_Nid =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt32,
-      int32_t,
-      MmCompactionWakeupKcompactdFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Nid kNid() { return {}; }
-  void set_nid(int32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Nid::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Order =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt32,
-      int32_t,
-      MmCompactionWakeupKcompactdFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Order kOrder() { return {}; }
-  void set_order(int32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Order::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_ClasszoneIdx =
-    ::protozero::proto_utils::FieldMetadata<
-      3,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      MmCompactionWakeupKcompactdFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_ClasszoneIdx kClasszoneIdx() { return {}; }
-  void set_classzone_idx(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_ClasszoneIdx::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-};
-
-class MmCompactionTryToCompactPagesFtraceEvent_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/3, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  MmCompactionTryToCompactPagesFtraceEvent_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit MmCompactionTryToCompactPagesFtraceEvent_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit MmCompactionTryToCompactPagesFtraceEvent_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_order() const { return at<1>().valid(); }
-  int32_t order() const { return at<1>().as_int32(); }
-  bool has_gfp_mask() const { return at<2>().valid(); }
-  uint32_t gfp_mask() const { return at<2>().as_uint32(); }
-  bool has_mode() const { return at<3>().valid(); }
-  uint32_t mode() const { return at<3>().as_uint32(); }
-};
-
-class MmCompactionTryToCompactPagesFtraceEvent : public ::protozero::Message {
- public:
-  using Decoder = MmCompactionTryToCompactPagesFtraceEvent_Decoder;
-  enum : int32_t {
-    kOrderFieldNumber = 1,
-    kGfpMaskFieldNumber = 2,
-    kModeFieldNumber = 3,
-  };
-
-  using FieldMetadata_Order =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt32,
-      int32_t,
-      MmCompactionTryToCompactPagesFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Order kOrder() { return {}; }
-  void set_order(int32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Order::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_GfpMask =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      MmCompactionTryToCompactPagesFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_GfpMask kGfpMask() { return {}; }
-  void set_gfp_mask(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_GfpMask::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Mode =
-    ::protozero::proto_utils::FieldMetadata<
-      3,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      MmCompactionTryToCompactPagesFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Mode kMode() { return {}; }
-  void set_mode(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Mode::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-};
-
-class MmCompactionSuitableFtraceEvent_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/4, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  MmCompactionSuitableFtraceEvent_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit MmCompactionSuitableFtraceEvent_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit MmCompactionSuitableFtraceEvent_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_nid() const { return at<1>().valid(); }
-  int32_t nid() const { return at<1>().as_int32(); }
-  bool has_idx() const { return at<2>().valid(); }
-  uint32_t idx() const { return at<2>().as_uint32(); }
-  bool has_order() const { return at<3>().valid(); }
-  int32_t order() const { return at<3>().as_int32(); }
-  bool has_ret() const { return at<4>().valid(); }
-  int32_t ret() const { return at<4>().as_int32(); }
-};
-
-class MmCompactionSuitableFtraceEvent : public ::protozero::Message {
- public:
-  using Decoder = MmCompactionSuitableFtraceEvent_Decoder;
-  enum : int32_t {
-    kNidFieldNumber = 1,
-    kIdxFieldNumber = 2,
-    kOrderFieldNumber = 3,
-    kRetFieldNumber = 4,
-  };
-
-  using FieldMetadata_Nid =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt32,
-      int32_t,
-      MmCompactionSuitableFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Nid kNid() { return {}; }
-  void set_nid(int32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Nid::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Idx =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      MmCompactionSuitableFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Idx kIdx() { return {}; }
-  void set_idx(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Idx::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Order =
-    ::protozero::proto_utils::FieldMetadata<
-      3,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt32,
-      int32_t,
-      MmCompactionSuitableFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Order kOrder() { return {}; }
-  void set_order(int32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Order::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Ret =
-    ::protozero::proto_utils::FieldMetadata<
-      4,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt32,
-      int32_t,
-      MmCompactionSuitableFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Ret kRet() { return {}; }
-  void set_ret(int32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Ret::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt32>
-        ::Append(*this, field_id, value);
-  }
-};
-
-class MmCompactionMigratepagesFtraceEvent_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/2, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  MmCompactionMigratepagesFtraceEvent_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit MmCompactionMigratepagesFtraceEvent_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit MmCompactionMigratepagesFtraceEvent_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_nr_migrated() const { return at<1>().valid(); }
-  uint64_t nr_migrated() const { return at<1>().as_uint64(); }
-  bool has_nr_failed() const { return at<2>().valid(); }
-  uint64_t nr_failed() const { return at<2>().as_uint64(); }
-};
-
-class MmCompactionMigratepagesFtraceEvent : public ::protozero::Message {
- public:
-  using Decoder = MmCompactionMigratepagesFtraceEvent_Decoder;
-  enum : int32_t {
-    kNrMigratedFieldNumber = 1,
-    kNrFailedFieldNumber = 2,
-  };
-
-  using FieldMetadata_NrMigrated =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      MmCompactionMigratepagesFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_NrMigrated kNrMigrated() { return {}; }
-  void set_nr_migrated(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_NrMigrated::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_NrFailed =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      MmCompactionMigratepagesFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_NrFailed kNrFailed() { return {}; }
-  void set_nr_failed(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_NrFailed::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-};
-
-class MmCompactionKcompactdWakeFtraceEvent_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/3, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  MmCompactionKcompactdWakeFtraceEvent_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit MmCompactionKcompactdWakeFtraceEvent_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit MmCompactionKcompactdWakeFtraceEvent_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_nid() const { return at<1>().valid(); }
-  int32_t nid() const { return at<1>().as_int32(); }
-  bool has_order() const { return at<2>().valid(); }
-  int32_t order() const { return at<2>().as_int32(); }
-  bool has_classzone_idx() const { return at<3>().valid(); }
-  uint32_t classzone_idx() const { return at<3>().as_uint32(); }
-};
-
-class MmCompactionKcompactdWakeFtraceEvent : public ::protozero::Message {
- public:
-  using Decoder = MmCompactionKcompactdWakeFtraceEvent_Decoder;
-  enum : int32_t {
-    kNidFieldNumber = 1,
-    kOrderFieldNumber = 2,
-    kClasszoneIdxFieldNumber = 3,
-  };
-
-  using FieldMetadata_Nid =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt32,
-      int32_t,
-      MmCompactionKcompactdWakeFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Nid kNid() { return {}; }
-  void set_nid(int32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Nid::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Order =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt32,
-      int32_t,
-      MmCompactionKcompactdWakeFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Order kOrder() { return {}; }
-  void set_order(int32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Order::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_ClasszoneIdx =
-    ::protozero::proto_utils::FieldMetadata<
-      3,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      MmCompactionKcompactdWakeFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_ClasszoneIdx kClasszoneIdx() { return {}; }
-  void set_classzone_idx(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_ClasszoneIdx::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-};
-
-class MmCompactionKcompactdSleepFtraceEvent_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/1, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  MmCompactionKcompactdSleepFtraceEvent_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit MmCompactionKcompactdSleepFtraceEvent_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit MmCompactionKcompactdSleepFtraceEvent_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_nid() const { return at<1>().valid(); }
-  int32_t nid() const { return at<1>().as_int32(); }
-};
-
-class MmCompactionKcompactdSleepFtraceEvent : public ::protozero::Message {
- public:
-  using Decoder = MmCompactionKcompactdSleepFtraceEvent_Decoder;
-  enum : int32_t {
-    kNidFieldNumber = 1,
-  };
-
-  using FieldMetadata_Nid =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt32,
-      int32_t,
-      MmCompactionKcompactdSleepFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Nid kNid() { return {}; }
-  void set_nid(int32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Nid::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt32>
-        ::Append(*this, field_id, value);
-  }
-};
-
-class MmCompactionIsolateMigratepagesFtraceEvent_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/4, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  MmCompactionIsolateMigratepagesFtraceEvent_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit MmCompactionIsolateMigratepagesFtraceEvent_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit MmCompactionIsolateMigratepagesFtraceEvent_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_start_pfn() const { return at<1>().valid(); }
-  uint64_t start_pfn() const { return at<1>().as_uint64(); }
-  bool has_end_pfn() const { return at<2>().valid(); }
-  uint64_t end_pfn() const { return at<2>().as_uint64(); }
-  bool has_nr_scanned() const { return at<3>().valid(); }
-  uint64_t nr_scanned() const { return at<3>().as_uint64(); }
-  bool has_nr_taken() const { return at<4>().valid(); }
-  uint64_t nr_taken() const { return at<4>().as_uint64(); }
-};
-
-class MmCompactionIsolateMigratepagesFtraceEvent : public ::protozero::Message {
- public:
-  using Decoder = MmCompactionIsolateMigratepagesFtraceEvent_Decoder;
-  enum : int32_t {
-    kStartPfnFieldNumber = 1,
-    kEndPfnFieldNumber = 2,
-    kNrScannedFieldNumber = 3,
-    kNrTakenFieldNumber = 4,
-  };
-
-  using FieldMetadata_StartPfn =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      MmCompactionIsolateMigratepagesFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_StartPfn kStartPfn() { return {}; }
-  void set_start_pfn(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_StartPfn::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_EndPfn =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      MmCompactionIsolateMigratepagesFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_EndPfn kEndPfn() { return {}; }
-  void set_end_pfn(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_EndPfn::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_NrScanned =
-    ::protozero::proto_utils::FieldMetadata<
-      3,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      MmCompactionIsolateMigratepagesFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_NrScanned kNrScanned() { return {}; }
-  void set_nr_scanned(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_NrScanned::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_NrTaken =
-    ::protozero::proto_utils::FieldMetadata<
-      4,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      MmCompactionIsolateMigratepagesFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_NrTaken kNrTaken() { return {}; }
-  void set_nr_taken(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_NrTaken::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-};
-
-class MmCompactionIsolateFreepagesFtraceEvent_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/4, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  MmCompactionIsolateFreepagesFtraceEvent_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit MmCompactionIsolateFreepagesFtraceEvent_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit MmCompactionIsolateFreepagesFtraceEvent_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_start_pfn() const { return at<1>().valid(); }
-  uint64_t start_pfn() const { return at<1>().as_uint64(); }
-  bool has_end_pfn() const { return at<2>().valid(); }
-  uint64_t end_pfn() const { return at<2>().as_uint64(); }
-  bool has_nr_scanned() const { return at<3>().valid(); }
-  uint64_t nr_scanned() const { return at<3>().as_uint64(); }
-  bool has_nr_taken() const { return at<4>().valid(); }
-  uint64_t nr_taken() const { return at<4>().as_uint64(); }
-};
-
-class MmCompactionIsolateFreepagesFtraceEvent : public ::protozero::Message {
- public:
-  using Decoder = MmCompactionIsolateFreepagesFtraceEvent_Decoder;
-  enum : int32_t {
-    kStartPfnFieldNumber = 1,
-    kEndPfnFieldNumber = 2,
-    kNrScannedFieldNumber = 3,
-    kNrTakenFieldNumber = 4,
-  };
-
-  using FieldMetadata_StartPfn =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      MmCompactionIsolateFreepagesFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_StartPfn kStartPfn() { return {}; }
-  void set_start_pfn(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_StartPfn::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_EndPfn =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      MmCompactionIsolateFreepagesFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_EndPfn kEndPfn() { return {}; }
-  void set_end_pfn(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_EndPfn::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_NrScanned =
-    ::protozero::proto_utils::FieldMetadata<
-      3,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      MmCompactionIsolateFreepagesFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_NrScanned kNrScanned() { return {}; }
-  void set_nr_scanned(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_NrScanned::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_NrTaken =
-    ::protozero::proto_utils::FieldMetadata<
-      4,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      MmCompactionIsolateFreepagesFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_NrTaken kNrTaken() { return {}; }
-  void set_nr_taken(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_NrTaken::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-};
-
-class MmCompactionFinishedFtraceEvent_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/4, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  MmCompactionFinishedFtraceEvent_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit MmCompactionFinishedFtraceEvent_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit MmCompactionFinishedFtraceEvent_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_nid() const { return at<1>().valid(); }
-  int32_t nid() const { return at<1>().as_int32(); }
-  bool has_idx() const { return at<2>().valid(); }
-  uint32_t idx() const { return at<2>().as_uint32(); }
-  bool has_order() const { return at<3>().valid(); }
-  int32_t order() const { return at<3>().as_int32(); }
-  bool has_ret() const { return at<4>().valid(); }
-  int32_t ret() const { return at<4>().as_int32(); }
-};
-
-class MmCompactionFinishedFtraceEvent : public ::protozero::Message {
- public:
-  using Decoder = MmCompactionFinishedFtraceEvent_Decoder;
-  enum : int32_t {
-    kNidFieldNumber = 1,
-    kIdxFieldNumber = 2,
-    kOrderFieldNumber = 3,
-    kRetFieldNumber = 4,
-  };
-
-  using FieldMetadata_Nid =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt32,
-      int32_t,
-      MmCompactionFinishedFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Nid kNid() { return {}; }
-  void set_nid(int32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Nid::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Idx =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      MmCompactionFinishedFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Idx kIdx() { return {}; }
-  void set_idx(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Idx::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Order =
-    ::protozero::proto_utils::FieldMetadata<
-      3,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt32,
-      int32_t,
-      MmCompactionFinishedFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Order kOrder() { return {}; }
-  void set_order(int32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Order::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Ret =
-    ::protozero::proto_utils::FieldMetadata<
-      4,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt32,
-      int32_t,
-      MmCompactionFinishedFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Ret kRet() { return {}; }
-  void set_ret(int32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Ret::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt32>
-        ::Append(*this, field_id, value);
-  }
-};
-
-class MmCompactionEndFtraceEvent_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/6, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  MmCompactionEndFtraceEvent_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit MmCompactionEndFtraceEvent_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit MmCompactionEndFtraceEvent_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_zone_start() const { return at<1>().valid(); }
-  uint64_t zone_start() const { return at<1>().as_uint64(); }
-  bool has_migrate_pfn() const { return at<2>().valid(); }
-  uint64_t migrate_pfn() const { return at<2>().as_uint64(); }
-  bool has_free_pfn() const { return at<3>().valid(); }
-  uint64_t free_pfn() const { return at<3>().as_uint64(); }
-  bool has_zone_end() const { return at<4>().valid(); }
-  uint64_t zone_end() const { return at<4>().as_uint64(); }
-  bool has_sync() const { return at<5>().valid(); }
-  uint32_t sync() const { return at<5>().as_uint32(); }
-  bool has_status() const { return at<6>().valid(); }
-  int32_t status() const { return at<6>().as_int32(); }
-};
-
-class MmCompactionEndFtraceEvent : public ::protozero::Message {
- public:
-  using Decoder = MmCompactionEndFtraceEvent_Decoder;
-  enum : int32_t {
-    kZoneStartFieldNumber = 1,
-    kMigratePfnFieldNumber = 2,
-    kFreePfnFieldNumber = 3,
-    kZoneEndFieldNumber = 4,
-    kSyncFieldNumber = 5,
-    kStatusFieldNumber = 6,
-  };
-
-  using FieldMetadata_ZoneStart =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      MmCompactionEndFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_ZoneStart kZoneStart() { return {}; }
-  void set_zone_start(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_ZoneStart::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_MigratePfn =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      MmCompactionEndFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_MigratePfn kMigratePfn() { return {}; }
-  void set_migrate_pfn(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_MigratePfn::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_FreePfn =
-    ::protozero::proto_utils::FieldMetadata<
-      3,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      MmCompactionEndFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_FreePfn kFreePfn() { return {}; }
-  void set_free_pfn(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_FreePfn::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_ZoneEnd =
-    ::protozero::proto_utils::FieldMetadata<
-      4,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      MmCompactionEndFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_ZoneEnd kZoneEnd() { return {}; }
-  void set_zone_end(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_ZoneEnd::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Sync =
-    ::protozero::proto_utils::FieldMetadata<
-      5,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      MmCompactionEndFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Sync kSync() { return {}; }
-  void set_sync(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Sync::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Status =
-    ::protozero::proto_utils::FieldMetadata<
-      6,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt32,
-      int32_t,
-      MmCompactionEndFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Status kStatus() { return {}; }
-  void set_status(int32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Status::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt32>
-        ::Append(*this, field_id, value);
-  }
-};
-
-class MmCompactionDeferResetFtraceEvent_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/6, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  MmCompactionDeferResetFtraceEvent_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit MmCompactionDeferResetFtraceEvent_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit MmCompactionDeferResetFtraceEvent_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_nid() const { return at<1>().valid(); }
-  int32_t nid() const { return at<1>().as_int32(); }
-  bool has_idx() const { return at<2>().valid(); }
-  uint32_t idx() const { return at<2>().as_uint32(); }
-  bool has_order() const { return at<3>().valid(); }
-  int32_t order() const { return at<3>().as_int32(); }
-  bool has_considered() const { return at<4>().valid(); }
-  uint32_t considered() const { return at<4>().as_uint32(); }
-  bool has_defer_shift() const { return at<5>().valid(); }
-  uint32_t defer_shift() const { return at<5>().as_uint32(); }
-  bool has_order_failed() const { return at<6>().valid(); }
-  int32_t order_failed() const { return at<6>().as_int32(); }
-};
-
-class MmCompactionDeferResetFtraceEvent : public ::protozero::Message {
- public:
-  using Decoder = MmCompactionDeferResetFtraceEvent_Decoder;
-  enum : int32_t {
-    kNidFieldNumber = 1,
-    kIdxFieldNumber = 2,
-    kOrderFieldNumber = 3,
-    kConsideredFieldNumber = 4,
-    kDeferShiftFieldNumber = 5,
-    kOrderFailedFieldNumber = 6,
-  };
-
-  using FieldMetadata_Nid =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt32,
-      int32_t,
-      MmCompactionDeferResetFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Nid kNid() { return {}; }
-  void set_nid(int32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Nid::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Idx =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      MmCompactionDeferResetFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Idx kIdx() { return {}; }
-  void set_idx(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Idx::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Order =
-    ::protozero::proto_utils::FieldMetadata<
-      3,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt32,
-      int32_t,
-      MmCompactionDeferResetFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Order kOrder() { return {}; }
-  void set_order(int32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Order::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Considered =
-    ::protozero::proto_utils::FieldMetadata<
-      4,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      MmCompactionDeferResetFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Considered kConsidered() { return {}; }
-  void set_considered(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Considered::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_DeferShift =
-    ::protozero::proto_utils::FieldMetadata<
-      5,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      MmCompactionDeferResetFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_DeferShift kDeferShift() { return {}; }
-  void set_defer_shift(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_DeferShift::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_OrderFailed =
-    ::protozero::proto_utils::FieldMetadata<
-      6,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt32,
-      int32_t,
-      MmCompactionDeferResetFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_OrderFailed kOrderFailed() { return {}; }
-  void set_order_failed(int32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_OrderFailed::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt32>
-        ::Append(*this, field_id, value);
-  }
-};
-
-class MmCompactionDeferredFtraceEvent_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/6, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  MmCompactionDeferredFtraceEvent_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit MmCompactionDeferredFtraceEvent_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit MmCompactionDeferredFtraceEvent_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_nid() const { return at<1>().valid(); }
-  int32_t nid() const { return at<1>().as_int32(); }
-  bool has_idx() const { return at<2>().valid(); }
-  uint32_t idx() const { return at<2>().as_uint32(); }
-  bool has_order() const { return at<3>().valid(); }
-  int32_t order() const { return at<3>().as_int32(); }
-  bool has_considered() const { return at<4>().valid(); }
-  uint32_t considered() const { return at<4>().as_uint32(); }
-  bool has_defer_shift() const { return at<5>().valid(); }
-  uint32_t defer_shift() const { return at<5>().as_uint32(); }
-  bool has_order_failed() const { return at<6>().valid(); }
-  int32_t order_failed() const { return at<6>().as_int32(); }
-};
-
-class MmCompactionDeferredFtraceEvent : public ::protozero::Message {
- public:
-  using Decoder = MmCompactionDeferredFtraceEvent_Decoder;
-  enum : int32_t {
-    kNidFieldNumber = 1,
-    kIdxFieldNumber = 2,
-    kOrderFieldNumber = 3,
-    kConsideredFieldNumber = 4,
-    kDeferShiftFieldNumber = 5,
-    kOrderFailedFieldNumber = 6,
-  };
-
-  using FieldMetadata_Nid =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt32,
-      int32_t,
-      MmCompactionDeferredFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Nid kNid() { return {}; }
-  void set_nid(int32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Nid::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Idx =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      MmCompactionDeferredFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Idx kIdx() { return {}; }
-  void set_idx(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Idx::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Order =
-    ::protozero::proto_utils::FieldMetadata<
-      3,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt32,
-      int32_t,
-      MmCompactionDeferredFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Order kOrder() { return {}; }
-  void set_order(int32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Order::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Considered =
-    ::protozero::proto_utils::FieldMetadata<
-      4,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      MmCompactionDeferredFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Considered kConsidered() { return {}; }
-  void set_considered(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Considered::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_DeferShift =
-    ::protozero::proto_utils::FieldMetadata<
-      5,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      MmCompactionDeferredFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_DeferShift kDeferShift() { return {}; }
-  void set_defer_shift(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_DeferShift::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_OrderFailed =
-    ::protozero::proto_utils::FieldMetadata<
-      6,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt32,
-      int32_t,
-      MmCompactionDeferredFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_OrderFailed kOrderFailed() { return {}; }
-  void set_order_failed(int32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_OrderFailed::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt32>
-        ::Append(*this, field_id, value);
-  }
-};
-
-class MmCompactionDeferCompactionFtraceEvent_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/6, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  MmCompactionDeferCompactionFtraceEvent_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit MmCompactionDeferCompactionFtraceEvent_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit MmCompactionDeferCompactionFtraceEvent_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_nid() const { return at<1>().valid(); }
-  int32_t nid() const { return at<1>().as_int32(); }
-  bool has_idx() const { return at<2>().valid(); }
-  uint32_t idx() const { return at<2>().as_uint32(); }
-  bool has_order() const { return at<3>().valid(); }
-  int32_t order() const { return at<3>().as_int32(); }
-  bool has_considered() const { return at<4>().valid(); }
-  uint32_t considered() const { return at<4>().as_uint32(); }
-  bool has_defer_shift() const { return at<5>().valid(); }
-  uint32_t defer_shift() const { return at<5>().as_uint32(); }
-  bool has_order_failed() const { return at<6>().valid(); }
-  int32_t order_failed() const { return at<6>().as_int32(); }
-};
-
-class MmCompactionDeferCompactionFtraceEvent : public ::protozero::Message {
- public:
-  using Decoder = MmCompactionDeferCompactionFtraceEvent_Decoder;
-  enum : int32_t {
-    kNidFieldNumber = 1,
-    kIdxFieldNumber = 2,
-    kOrderFieldNumber = 3,
-    kConsideredFieldNumber = 4,
-    kDeferShiftFieldNumber = 5,
-    kOrderFailedFieldNumber = 6,
-  };
-
-  using FieldMetadata_Nid =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt32,
-      int32_t,
-      MmCompactionDeferCompactionFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Nid kNid() { return {}; }
-  void set_nid(int32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Nid::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Idx =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      MmCompactionDeferCompactionFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Idx kIdx() { return {}; }
-  void set_idx(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Idx::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Order =
-    ::protozero::proto_utils::FieldMetadata<
-      3,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt32,
-      int32_t,
-      MmCompactionDeferCompactionFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Order kOrder() { return {}; }
-  void set_order(int32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Order::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Considered =
-    ::protozero::proto_utils::FieldMetadata<
-      4,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      MmCompactionDeferCompactionFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Considered kConsidered() { return {}; }
-  void set_considered(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Considered::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_DeferShift =
-    ::protozero::proto_utils::FieldMetadata<
-      5,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      MmCompactionDeferCompactionFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_DeferShift kDeferShift() { return {}; }
-  void set_defer_shift(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_DeferShift::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_OrderFailed =
-    ::protozero::proto_utils::FieldMetadata<
-      6,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt32,
-      int32_t,
-      MmCompactionDeferCompactionFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_OrderFailed kOrderFailed() { return {}; }
-  void set_order_failed(int32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_OrderFailed::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt32>
-        ::Append(*this, field_id, value);
-  }
-};
-
-class MmCompactionBeginFtraceEvent_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/5, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  MmCompactionBeginFtraceEvent_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit MmCompactionBeginFtraceEvent_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit MmCompactionBeginFtraceEvent_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_zone_start() const { return at<1>().valid(); }
-  uint64_t zone_start() const { return at<1>().as_uint64(); }
-  bool has_migrate_pfn() const { return at<2>().valid(); }
-  uint64_t migrate_pfn() const { return at<2>().as_uint64(); }
-  bool has_free_pfn() const { return at<3>().valid(); }
-  uint64_t free_pfn() const { return at<3>().as_uint64(); }
-  bool has_zone_end() const { return at<4>().valid(); }
-  uint64_t zone_end() const { return at<4>().as_uint64(); }
-  bool has_sync() const { return at<5>().valid(); }
-  uint32_t sync() const { return at<5>().as_uint32(); }
-};
-
-class MmCompactionBeginFtraceEvent : public ::protozero::Message {
- public:
-  using Decoder = MmCompactionBeginFtraceEvent_Decoder;
-  enum : int32_t {
-    kZoneStartFieldNumber = 1,
-    kMigratePfnFieldNumber = 2,
-    kFreePfnFieldNumber = 3,
-    kZoneEndFieldNumber = 4,
-    kSyncFieldNumber = 5,
-  };
-
-  using FieldMetadata_ZoneStart =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      MmCompactionBeginFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_ZoneStart kZoneStart() { return {}; }
-  void set_zone_start(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_ZoneStart::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_MigratePfn =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      MmCompactionBeginFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_MigratePfn kMigratePfn() { return {}; }
-  void set_migrate_pfn(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_MigratePfn::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_FreePfn =
-    ::protozero::proto_utils::FieldMetadata<
-      3,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      MmCompactionBeginFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_FreePfn kFreePfn() { return {}; }
-  void set_free_pfn(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_FreePfn::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_ZoneEnd =
-    ::protozero::proto_utils::FieldMetadata<
-      4,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      MmCompactionBeginFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_ZoneEnd kZoneEnd() { return {}; }
-  void set_zone_end(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_ZoneEnd::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Sync =
-    ::protozero::proto_utils::FieldMetadata<
-      5,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      MmCompactionBeginFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Sync kSync() { return {}; }
-  void set_sync(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Sync::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-};
-
-} // Namespace.
-} // Namespace.
-} // Namespace.
-#endif  // Include guard.
-// gen_amalgamated begin header: gen/protos/perfetto/trace/ftrace/cpuhp.pbzero.h
-// Autogenerated by the ProtoZero compiler plugin. DO NOT EDIT.
-
-#ifndef PERFETTO_PROTOS_PROTOS_PERFETTO_TRACE_FTRACE_CPUHP_PROTO_H_
-#define PERFETTO_PROTOS_PROTOS_PERFETTO_TRACE_FTRACE_CPUHP_PROTO_H_
-
-#include <stddef.h>
-#include <stdint.h>
-
-// gen_amalgamated expanded: #include "perfetto/protozero/field_writer.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/message.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/packed_repeated_fields.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/proto_decoder.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/proto_utils.h"
-
-namespace perfetto {
-namespace protos {
-namespace pbzero {
-
-
-class CpuhpPauseFtraceEvent_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/4, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  CpuhpPauseFtraceEvent_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit CpuhpPauseFtraceEvent_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit CpuhpPauseFtraceEvent_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_active_cpus() const { return at<1>().valid(); }
-  uint32_t active_cpus() const { return at<1>().as_uint32(); }
-  bool has_cpus() const { return at<2>().valid(); }
-  uint32_t cpus() const { return at<2>().as_uint32(); }
-  bool has_pause() const { return at<3>().valid(); }
-  uint32_t pause() const { return at<3>().as_uint32(); }
-  bool has_time() const { return at<4>().valid(); }
-  uint32_t time() const { return at<4>().as_uint32(); }
-};
-
-class CpuhpPauseFtraceEvent : public ::protozero::Message {
- public:
-  using Decoder = CpuhpPauseFtraceEvent_Decoder;
-  enum : int32_t {
-    kActiveCpusFieldNumber = 1,
-    kCpusFieldNumber = 2,
-    kPauseFieldNumber = 3,
-    kTimeFieldNumber = 4,
-  };
-
-  using FieldMetadata_ActiveCpus =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      CpuhpPauseFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_ActiveCpus kActiveCpus() { return {}; }
-  void set_active_cpus(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_ActiveCpus::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Cpus =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      CpuhpPauseFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Cpus kCpus() { return {}; }
-  void set_cpus(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Cpus::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Pause =
-    ::protozero::proto_utils::FieldMetadata<
-      3,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      CpuhpPauseFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Pause kPause() { return {}; }
-  void set_pause(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Pause::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Time =
-    ::protozero::proto_utils::FieldMetadata<
-      4,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      CpuhpPauseFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Time kTime() { return {}; }
-  void set_time(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Time::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-};
-
-class CpuhpLatencyFtraceEvent_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/4, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  CpuhpLatencyFtraceEvent_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit CpuhpLatencyFtraceEvent_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit CpuhpLatencyFtraceEvent_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_cpu() const { return at<1>().valid(); }
-  uint32_t cpu() const { return at<1>().as_uint32(); }
-  bool has_ret() const { return at<2>().valid(); }
-  int32_t ret() const { return at<2>().as_int32(); }
-  bool has_state() const { return at<3>().valid(); }
-  uint32_t state() const { return at<3>().as_uint32(); }
-  bool has_time() const { return at<4>().valid(); }
-  uint64_t time() const { return at<4>().as_uint64(); }
-};
-
-class CpuhpLatencyFtraceEvent : public ::protozero::Message {
- public:
-  using Decoder = CpuhpLatencyFtraceEvent_Decoder;
-  enum : int32_t {
-    kCpuFieldNumber = 1,
-    kRetFieldNumber = 2,
-    kStateFieldNumber = 3,
-    kTimeFieldNumber = 4,
-  };
-
-  using FieldMetadata_Cpu =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      CpuhpLatencyFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Cpu kCpu() { return {}; }
-  void set_cpu(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Cpu::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Ret =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt32,
-      int32_t,
-      CpuhpLatencyFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Ret kRet() { return {}; }
-  void set_ret(int32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Ret::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_State =
-    ::protozero::proto_utils::FieldMetadata<
-      3,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      CpuhpLatencyFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_State kState() { return {}; }
-  void set_state(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_State::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Time =
-    ::protozero::proto_utils::FieldMetadata<
-      4,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      CpuhpLatencyFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Time kTime() { return {}; }
-  void set_time(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Time::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-};
-
-class CpuhpEnterFtraceEvent_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/4, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  CpuhpEnterFtraceEvent_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit CpuhpEnterFtraceEvent_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit CpuhpEnterFtraceEvent_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_cpu() const { return at<1>().valid(); }
-  uint32_t cpu() const { return at<1>().as_uint32(); }
-  bool has_fun() const { return at<2>().valid(); }
-  uint64_t fun() const { return at<2>().as_uint64(); }
-  bool has_idx() const { return at<3>().valid(); }
-  int32_t idx() const { return at<3>().as_int32(); }
-  bool has_target() const { return at<4>().valid(); }
-  int32_t target() const { return at<4>().as_int32(); }
-};
-
-class CpuhpEnterFtraceEvent : public ::protozero::Message {
- public:
-  using Decoder = CpuhpEnterFtraceEvent_Decoder;
-  enum : int32_t {
-    kCpuFieldNumber = 1,
-    kFunFieldNumber = 2,
-    kIdxFieldNumber = 3,
-    kTargetFieldNumber = 4,
-  };
-
-  using FieldMetadata_Cpu =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      CpuhpEnterFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Cpu kCpu() { return {}; }
-  void set_cpu(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Cpu::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Fun =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      CpuhpEnterFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Fun kFun() { return {}; }
-  void set_fun(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Fun::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Idx =
-    ::protozero::proto_utils::FieldMetadata<
-      3,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt32,
-      int32_t,
-      CpuhpEnterFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Idx kIdx() { return {}; }
-  void set_idx(int32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Idx::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Target =
-    ::protozero::proto_utils::FieldMetadata<
-      4,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt32,
-      int32_t,
-      CpuhpEnterFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Target kTarget() { return {}; }
-  void set_target(int32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Target::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt32>
-        ::Append(*this, field_id, value);
-  }
-};
-
-class CpuhpMultiEnterFtraceEvent_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/4, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  CpuhpMultiEnterFtraceEvent_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit CpuhpMultiEnterFtraceEvent_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit CpuhpMultiEnterFtraceEvent_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_cpu() const { return at<1>().valid(); }
-  uint32_t cpu() const { return at<1>().as_uint32(); }
-  bool has_fun() const { return at<2>().valid(); }
-  uint64_t fun() const { return at<2>().as_uint64(); }
-  bool has_idx() const { return at<3>().valid(); }
-  int32_t idx() const { return at<3>().as_int32(); }
-  bool has_target() const { return at<4>().valid(); }
-  int32_t target() const { return at<4>().as_int32(); }
-};
-
-class CpuhpMultiEnterFtraceEvent : public ::protozero::Message {
- public:
-  using Decoder = CpuhpMultiEnterFtraceEvent_Decoder;
-  enum : int32_t {
-    kCpuFieldNumber = 1,
-    kFunFieldNumber = 2,
-    kIdxFieldNumber = 3,
-    kTargetFieldNumber = 4,
-  };
-
-  using FieldMetadata_Cpu =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      CpuhpMultiEnterFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Cpu kCpu() { return {}; }
-  void set_cpu(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Cpu::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Fun =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      CpuhpMultiEnterFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Fun kFun() { return {}; }
-  void set_fun(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Fun::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Idx =
-    ::protozero::proto_utils::FieldMetadata<
-      3,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt32,
-      int32_t,
-      CpuhpMultiEnterFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Idx kIdx() { return {}; }
-  void set_idx(int32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Idx::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Target =
-    ::protozero::proto_utils::FieldMetadata<
-      4,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt32,
-      int32_t,
-      CpuhpMultiEnterFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Target kTarget() { return {}; }
-  void set_target(int32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Target::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt32>
-        ::Append(*this, field_id, value);
-  }
-};
-
-class CpuhpExitFtraceEvent_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/4, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  CpuhpExitFtraceEvent_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit CpuhpExitFtraceEvent_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit CpuhpExitFtraceEvent_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_cpu() const { return at<1>().valid(); }
-  uint32_t cpu() const { return at<1>().as_uint32(); }
-  bool has_idx() const { return at<2>().valid(); }
-  int32_t idx() const { return at<2>().as_int32(); }
-  bool has_ret() const { return at<3>().valid(); }
-  int32_t ret() const { return at<3>().as_int32(); }
-  bool has_state() const { return at<4>().valid(); }
-  int32_t state() const { return at<4>().as_int32(); }
-};
-
-class CpuhpExitFtraceEvent : public ::protozero::Message {
- public:
-  using Decoder = CpuhpExitFtraceEvent_Decoder;
-  enum : int32_t {
-    kCpuFieldNumber = 1,
-    kIdxFieldNumber = 2,
-    kRetFieldNumber = 3,
-    kStateFieldNumber = 4,
-  };
-
-  using FieldMetadata_Cpu =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      CpuhpExitFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Cpu kCpu() { return {}; }
-  void set_cpu(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Cpu::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Idx =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt32,
-      int32_t,
-      CpuhpExitFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Idx kIdx() { return {}; }
-  void set_idx(int32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Idx::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Ret =
-    ::protozero::proto_utils::FieldMetadata<
-      3,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt32,
-      int32_t,
-      CpuhpExitFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Ret kRet() { return {}; }
-  void set_ret(int32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Ret::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_State =
-    ::protozero::proto_utils::FieldMetadata<
-      4,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt32,
-      int32_t,
-      CpuhpExitFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_State kState() { return {}; }
-  void set_state(int32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_State::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt32>
-        ::Append(*this, field_id, value);
-  }
-};
-
-} // Namespace.
-} // Namespace.
-} // Namespace.
-#endif  // Include guard.
-// gen_amalgamated begin header: gen/protos/perfetto/trace/ftrace/dmabuf_heap.pbzero.h
-// Autogenerated by the ProtoZero compiler plugin. DO NOT EDIT.
-
-#ifndef PERFETTO_PROTOS_PROTOS_PERFETTO_TRACE_FTRACE_DMABUF_HEAP_PROTO_H_
-#define PERFETTO_PROTOS_PROTOS_PERFETTO_TRACE_FTRACE_DMABUF_HEAP_PROTO_H_
-
-#include <stddef.h>
-#include <stdint.h>
-
-// gen_amalgamated expanded: #include "perfetto/protozero/field_writer.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/message.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/packed_repeated_fields.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/proto_decoder.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/proto_utils.h"
-
-namespace perfetto {
-namespace protos {
-namespace pbzero {
-
-
-class DmaHeapStatFtraceEvent_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/3, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  DmaHeapStatFtraceEvent_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit DmaHeapStatFtraceEvent_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit DmaHeapStatFtraceEvent_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_inode() const { return at<1>().valid(); }
-  uint64_t inode() const { return at<1>().as_uint64(); }
-  bool has_len() const { return at<2>().valid(); }
-  int64_t len() const { return at<2>().as_int64(); }
-  bool has_total_allocated() const { return at<3>().valid(); }
-  uint64_t total_allocated() const { return at<3>().as_uint64(); }
-};
-
-class DmaHeapStatFtraceEvent : public ::protozero::Message {
- public:
-  using Decoder = DmaHeapStatFtraceEvent_Decoder;
-  enum : int32_t {
-    kInodeFieldNumber = 1,
-    kLenFieldNumber = 2,
-    kTotalAllocatedFieldNumber = 3,
-  };
-
-  using FieldMetadata_Inode =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      DmaHeapStatFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Inode kInode() { return {}; }
-  void set_inode(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Inode::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Len =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt64,
-      int64_t,
-      DmaHeapStatFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Len kLen() { return {}; }
-  void set_len(int64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Len::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_TotalAllocated =
-    ::protozero::proto_utils::FieldMetadata<
-      3,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      DmaHeapStatFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_TotalAllocated kTotalAllocated() { return {}; }
-  void set_total_allocated(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_TotalAllocated::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-};
-
-} // Namespace.
-} // Namespace.
-} // Namespace.
-#endif  // Include guard.
-// gen_amalgamated begin header: gen/protos/perfetto/trace/ftrace/dpu.pbzero.h
-// Autogenerated by the ProtoZero compiler plugin. DO NOT EDIT.
-
-#ifndef PERFETTO_PROTOS_PROTOS_PERFETTO_TRACE_FTRACE_DPU_PROTO_H_
-#define PERFETTO_PROTOS_PROTOS_PERFETTO_TRACE_FTRACE_DPU_PROTO_H_
-
-#include <stddef.h>
-#include <stdint.h>
-
-// gen_amalgamated expanded: #include "perfetto/protozero/field_writer.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/message.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/packed_repeated_fields.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/proto_decoder.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/proto_utils.h"
-
-namespace perfetto {
-namespace protos {
-namespace pbzero {
-
-
-class DpuTracingMarkWriteFtraceEvent_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/6, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  DpuTracingMarkWriteFtraceEvent_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit DpuTracingMarkWriteFtraceEvent_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit DpuTracingMarkWriteFtraceEvent_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_pid() const { return at<1>().valid(); }
-  int32_t pid() const { return at<1>().as_int32(); }
-  bool has_trace_name() const { return at<2>().valid(); }
-  ::protozero::ConstChars trace_name() const { return at<2>().as_string(); }
-  bool has_trace_begin() const { return at<3>().valid(); }
-  uint32_t trace_begin() const { return at<3>().as_uint32(); }
-  bool has_name() const { return at<4>().valid(); }
-  ::protozero::ConstChars name() const { return at<4>().as_string(); }
-  bool has_type() const { return at<5>().valid(); }
-  uint32_t type() const { return at<5>().as_uint32(); }
-  bool has_value() const { return at<6>().valid(); }
-  int32_t value() const { return at<6>().as_int32(); }
-};
-
-class DpuTracingMarkWriteFtraceEvent : public ::protozero::Message {
- public:
-  using Decoder = DpuTracingMarkWriteFtraceEvent_Decoder;
-  enum : int32_t {
-    kPidFieldNumber = 1,
-    kTraceNameFieldNumber = 2,
-    kTraceBeginFieldNumber = 3,
-    kNameFieldNumber = 4,
-    kTypeFieldNumber = 5,
-    kValueFieldNumber = 6,
-  };
-
-  using FieldMetadata_Pid =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt32,
-      int32_t,
-      DpuTracingMarkWriteFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Pid kPid() { return {}; }
-  void set_pid(int32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Pid::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_TraceName =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kString,
-      std::string,
-      DpuTracingMarkWriteFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_TraceName kTraceName() { return {}; }
-  void set_trace_name(const char* data, size_t size) {
-    AppendBytes(FieldMetadata_TraceName::kFieldId, data, size);
-  }
-  void set_trace_name(std::string value) {
-    static constexpr uint32_t field_id = FieldMetadata_TraceName::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kString>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_TraceBegin =
-    ::protozero::proto_utils::FieldMetadata<
-      3,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      DpuTracingMarkWriteFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_TraceBegin kTraceBegin() { return {}; }
-  void set_trace_begin(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_TraceBegin::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Name =
-    ::protozero::proto_utils::FieldMetadata<
-      4,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kString,
-      std::string,
-      DpuTracingMarkWriteFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Name kName() { return {}; }
-  void set_name(const char* data, size_t size) {
-    AppendBytes(FieldMetadata_Name::kFieldId, data, size);
-  }
-  void set_name(std::string value) {
-    static constexpr uint32_t field_id = FieldMetadata_Name::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kString>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Type =
-    ::protozero::proto_utils::FieldMetadata<
-      5,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      DpuTracingMarkWriteFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Type kType() { return {}; }
-  void set_type(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Type::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Value =
-    ::protozero::proto_utils::FieldMetadata<
-      6,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt32,
-      int32_t,
-      DpuTracingMarkWriteFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Value kValue() { return {}; }
-  void set_value(int32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Value::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt32>
-        ::Append(*this, field_id, value);
-  }
-};
-
-} // Namespace.
-} // Namespace.
-} // Namespace.
-#endif  // Include guard.
-// gen_amalgamated begin header: gen/protos/perfetto/trace/ftrace/ext4.pbzero.h
-// Autogenerated by the ProtoZero compiler plugin. DO NOT EDIT.
-
-#ifndef PERFETTO_PROTOS_PROTOS_PERFETTO_TRACE_FTRACE_EXT4_PROTO_H_
-#define PERFETTO_PROTOS_PROTOS_PERFETTO_TRACE_FTRACE_EXT4_PROTO_H_
-
-#include <stddef.h>
-#include <stdint.h>
-
-// gen_amalgamated expanded: #include "perfetto/protozero/field_writer.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/message.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/packed_repeated_fields.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/proto_decoder.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/proto_utils.h"
-
-namespace perfetto {
-namespace protos {
-namespace pbzero {
-
-
-class Ext4ZeroRangeFtraceEvent_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/5, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  Ext4ZeroRangeFtraceEvent_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit Ext4ZeroRangeFtraceEvent_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit Ext4ZeroRangeFtraceEvent_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_dev() const { return at<1>().valid(); }
-  uint64_t dev() const { return at<1>().as_uint64(); }
-  bool has_ino() const { return at<2>().valid(); }
-  uint64_t ino() const { return at<2>().as_uint64(); }
-  bool has_offset() const { return at<3>().valid(); }
-  int64_t offset() const { return at<3>().as_int64(); }
-  bool has_len() const { return at<4>().valid(); }
-  int64_t len() const { return at<4>().as_int64(); }
-  bool has_mode() const { return at<5>().valid(); }
-  int32_t mode() const { return at<5>().as_int32(); }
-};
-
-class Ext4ZeroRangeFtraceEvent : public ::protozero::Message {
- public:
-  using Decoder = Ext4ZeroRangeFtraceEvent_Decoder;
-  enum : int32_t {
-    kDevFieldNumber = 1,
-    kInoFieldNumber = 2,
-    kOffsetFieldNumber = 3,
-    kLenFieldNumber = 4,
-    kModeFieldNumber = 5,
-  };
-
-  using FieldMetadata_Dev =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      Ext4ZeroRangeFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Dev kDev() { return {}; }
-  void set_dev(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Dev::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Ino =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      Ext4ZeroRangeFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Ino kIno() { return {}; }
-  void set_ino(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Ino::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Offset =
-    ::protozero::proto_utils::FieldMetadata<
-      3,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt64,
-      int64_t,
-      Ext4ZeroRangeFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Offset kOffset() { return {}; }
-  void set_offset(int64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Offset::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Len =
-    ::protozero::proto_utils::FieldMetadata<
-      4,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt64,
-      int64_t,
-      Ext4ZeroRangeFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Len kLen() { return {}; }
-  void set_len(int64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Len::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Mode =
-    ::protozero::proto_utils::FieldMetadata<
-      5,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt32,
-      int32_t,
-      Ext4ZeroRangeFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Mode kMode() { return {}; }
-  void set_mode(int32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Mode::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt32>
-        ::Append(*this, field_id, value);
-  }
-};
-
-class Ext4WritepagesResultFtraceEvent_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/7, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  Ext4WritepagesResultFtraceEvent_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit Ext4WritepagesResultFtraceEvent_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit Ext4WritepagesResultFtraceEvent_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_dev() const { return at<1>().valid(); }
-  uint64_t dev() const { return at<1>().as_uint64(); }
-  bool has_ino() const { return at<2>().valid(); }
-  uint64_t ino() const { return at<2>().as_uint64(); }
-  bool has_ret() const { return at<3>().valid(); }
-  int32_t ret() const { return at<3>().as_int32(); }
-  bool has_pages_written() const { return at<4>().valid(); }
-  int32_t pages_written() const { return at<4>().as_int32(); }
-  bool has_pages_skipped() const { return at<5>().valid(); }
-  int64_t pages_skipped() const { return at<5>().as_int64(); }
-  bool has_writeback_index() const { return at<6>().valid(); }
-  uint64_t writeback_index() const { return at<6>().as_uint64(); }
-  bool has_sync_mode() const { return at<7>().valid(); }
-  int32_t sync_mode() const { return at<7>().as_int32(); }
-};
-
-class Ext4WritepagesResultFtraceEvent : public ::protozero::Message {
- public:
-  using Decoder = Ext4WritepagesResultFtraceEvent_Decoder;
-  enum : int32_t {
-    kDevFieldNumber = 1,
-    kInoFieldNumber = 2,
-    kRetFieldNumber = 3,
-    kPagesWrittenFieldNumber = 4,
-    kPagesSkippedFieldNumber = 5,
-    kWritebackIndexFieldNumber = 6,
-    kSyncModeFieldNumber = 7,
-  };
-
-  using FieldMetadata_Dev =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      Ext4WritepagesResultFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Dev kDev() { return {}; }
-  void set_dev(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Dev::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Ino =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      Ext4WritepagesResultFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Ino kIno() { return {}; }
-  void set_ino(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Ino::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Ret =
-    ::protozero::proto_utils::FieldMetadata<
-      3,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt32,
-      int32_t,
-      Ext4WritepagesResultFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Ret kRet() { return {}; }
-  void set_ret(int32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Ret::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_PagesWritten =
-    ::protozero::proto_utils::FieldMetadata<
-      4,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt32,
-      int32_t,
-      Ext4WritepagesResultFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_PagesWritten kPagesWritten() { return {}; }
-  void set_pages_written(int32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_PagesWritten::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_PagesSkipped =
-    ::protozero::proto_utils::FieldMetadata<
-      5,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt64,
-      int64_t,
-      Ext4WritepagesResultFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_PagesSkipped kPagesSkipped() { return {}; }
-  void set_pages_skipped(int64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_PagesSkipped::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_WritebackIndex =
-    ::protozero::proto_utils::FieldMetadata<
-      6,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      Ext4WritepagesResultFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_WritebackIndex kWritebackIndex() { return {}; }
-  void set_writeback_index(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_WritebackIndex::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_SyncMode =
-    ::protozero::proto_utils::FieldMetadata<
-      7,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt32,
-      int32_t,
-      Ext4WritepagesResultFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_SyncMode kSyncMode() { return {}; }
-  void set_sync_mode(int32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_SyncMode::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt32>
-        ::Append(*this, field_id, value);
-  }
-};
-
-class Ext4WritepagesFtraceEvent_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/10, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  Ext4WritepagesFtraceEvent_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit Ext4WritepagesFtraceEvent_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit Ext4WritepagesFtraceEvent_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_dev() const { return at<1>().valid(); }
-  uint64_t dev() const { return at<1>().as_uint64(); }
-  bool has_ino() const { return at<2>().valid(); }
-  uint64_t ino() const { return at<2>().as_uint64(); }
-  bool has_nr_to_write() const { return at<3>().valid(); }
-  int64_t nr_to_write() const { return at<3>().as_int64(); }
-  bool has_pages_skipped() const { return at<4>().valid(); }
-  int64_t pages_skipped() const { return at<4>().as_int64(); }
-  bool has_range_start() const { return at<5>().valid(); }
-  int64_t range_start() const { return at<5>().as_int64(); }
-  bool has_range_end() const { return at<6>().valid(); }
-  int64_t range_end() const { return at<6>().as_int64(); }
-  bool has_writeback_index() const { return at<7>().valid(); }
-  uint64_t writeback_index() const { return at<7>().as_uint64(); }
-  bool has_sync_mode() const { return at<8>().valid(); }
-  int32_t sync_mode() const { return at<8>().as_int32(); }
-  bool has_for_kupdate() const { return at<9>().valid(); }
-  uint32_t for_kupdate() const { return at<9>().as_uint32(); }
-  bool has_range_cyclic() const { return at<10>().valid(); }
-  uint32_t range_cyclic() const { return at<10>().as_uint32(); }
-};
-
-class Ext4WritepagesFtraceEvent : public ::protozero::Message {
- public:
-  using Decoder = Ext4WritepagesFtraceEvent_Decoder;
-  enum : int32_t {
-    kDevFieldNumber = 1,
-    kInoFieldNumber = 2,
-    kNrToWriteFieldNumber = 3,
-    kPagesSkippedFieldNumber = 4,
-    kRangeStartFieldNumber = 5,
-    kRangeEndFieldNumber = 6,
-    kWritebackIndexFieldNumber = 7,
-    kSyncModeFieldNumber = 8,
-    kForKupdateFieldNumber = 9,
-    kRangeCyclicFieldNumber = 10,
-  };
-
-  using FieldMetadata_Dev =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      Ext4WritepagesFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Dev kDev() { return {}; }
-  void set_dev(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Dev::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Ino =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      Ext4WritepagesFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Ino kIno() { return {}; }
-  void set_ino(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Ino::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_NrToWrite =
-    ::protozero::proto_utils::FieldMetadata<
-      3,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt64,
-      int64_t,
-      Ext4WritepagesFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_NrToWrite kNrToWrite() { return {}; }
-  void set_nr_to_write(int64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_NrToWrite::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_PagesSkipped =
-    ::protozero::proto_utils::FieldMetadata<
-      4,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt64,
-      int64_t,
-      Ext4WritepagesFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_PagesSkipped kPagesSkipped() { return {}; }
-  void set_pages_skipped(int64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_PagesSkipped::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_RangeStart =
-    ::protozero::proto_utils::FieldMetadata<
-      5,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt64,
-      int64_t,
-      Ext4WritepagesFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_RangeStart kRangeStart() { return {}; }
-  void set_range_start(int64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_RangeStart::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_RangeEnd =
-    ::protozero::proto_utils::FieldMetadata<
-      6,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt64,
-      int64_t,
-      Ext4WritepagesFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_RangeEnd kRangeEnd() { return {}; }
-  void set_range_end(int64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_RangeEnd::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_WritebackIndex =
-    ::protozero::proto_utils::FieldMetadata<
-      7,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      Ext4WritepagesFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_WritebackIndex kWritebackIndex() { return {}; }
-  void set_writeback_index(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_WritebackIndex::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_SyncMode =
-    ::protozero::proto_utils::FieldMetadata<
-      8,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt32,
-      int32_t,
-      Ext4WritepagesFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_SyncMode kSyncMode() { return {}; }
-  void set_sync_mode(int32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_SyncMode::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_ForKupdate =
-    ::protozero::proto_utils::FieldMetadata<
-      9,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      Ext4WritepagesFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_ForKupdate kForKupdate() { return {}; }
-  void set_for_kupdate(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_ForKupdate::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_RangeCyclic =
-    ::protozero::proto_utils::FieldMetadata<
-      10,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      Ext4WritepagesFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_RangeCyclic kRangeCyclic() { return {}; }
-  void set_range_cyclic(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_RangeCyclic::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-};
-
-class Ext4WritepageFtraceEvent_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/3, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  Ext4WritepageFtraceEvent_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit Ext4WritepageFtraceEvent_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit Ext4WritepageFtraceEvent_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_dev() const { return at<1>().valid(); }
-  uint64_t dev() const { return at<1>().as_uint64(); }
-  bool has_ino() const { return at<2>().valid(); }
-  uint64_t ino() const { return at<2>().as_uint64(); }
-  bool has_index() const { return at<3>().valid(); }
-  uint64_t index() const { return at<3>().as_uint64(); }
-};
-
-class Ext4WritepageFtraceEvent : public ::protozero::Message {
- public:
-  using Decoder = Ext4WritepageFtraceEvent_Decoder;
-  enum : int32_t {
-    kDevFieldNumber = 1,
-    kInoFieldNumber = 2,
-    kIndexFieldNumber = 3,
-  };
-
-  using FieldMetadata_Dev =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      Ext4WritepageFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Dev kDev() { return {}; }
-  void set_dev(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Dev::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Ino =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      Ext4WritepageFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Ino kIno() { return {}; }
-  void set_ino(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Ino::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Index =
-    ::protozero::proto_utils::FieldMetadata<
-      3,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      Ext4WritepageFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Index kIndex() { return {}; }
-  void set_index(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Index::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-};
-
-class Ext4WriteEndFtraceEvent_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/5, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  Ext4WriteEndFtraceEvent_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit Ext4WriteEndFtraceEvent_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit Ext4WriteEndFtraceEvent_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_dev() const { return at<1>().valid(); }
-  uint64_t dev() const { return at<1>().as_uint64(); }
-  bool has_ino() const { return at<2>().valid(); }
-  uint64_t ino() const { return at<2>().as_uint64(); }
-  bool has_pos() const { return at<3>().valid(); }
-  int64_t pos() const { return at<3>().as_int64(); }
-  bool has_len() const { return at<4>().valid(); }
-  uint32_t len() const { return at<4>().as_uint32(); }
-  bool has_copied() const { return at<5>().valid(); }
-  uint32_t copied() const { return at<5>().as_uint32(); }
-};
-
-class Ext4WriteEndFtraceEvent : public ::protozero::Message {
- public:
-  using Decoder = Ext4WriteEndFtraceEvent_Decoder;
-  enum : int32_t {
-    kDevFieldNumber = 1,
-    kInoFieldNumber = 2,
-    kPosFieldNumber = 3,
-    kLenFieldNumber = 4,
-    kCopiedFieldNumber = 5,
-  };
-
-  using FieldMetadata_Dev =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      Ext4WriteEndFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Dev kDev() { return {}; }
-  void set_dev(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Dev::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Ino =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      Ext4WriteEndFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Ino kIno() { return {}; }
-  void set_ino(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Ino::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Pos =
-    ::protozero::proto_utils::FieldMetadata<
-      3,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt64,
-      int64_t,
-      Ext4WriteEndFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Pos kPos() { return {}; }
-  void set_pos(int64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Pos::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Len =
-    ::protozero::proto_utils::FieldMetadata<
-      4,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      Ext4WriteEndFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Len kLen() { return {}; }
-  void set_len(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Len::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Copied =
-    ::protozero::proto_utils::FieldMetadata<
-      5,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      Ext4WriteEndFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Copied kCopied() { return {}; }
-  void set_copied(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Copied::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-};
-
-class Ext4WriteBeginFtraceEvent_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/5, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  Ext4WriteBeginFtraceEvent_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit Ext4WriteBeginFtraceEvent_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit Ext4WriteBeginFtraceEvent_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_dev() const { return at<1>().valid(); }
-  uint64_t dev() const { return at<1>().as_uint64(); }
-  bool has_ino() const { return at<2>().valid(); }
-  uint64_t ino() const { return at<2>().as_uint64(); }
-  bool has_pos() const { return at<3>().valid(); }
-  int64_t pos() const { return at<3>().as_int64(); }
-  bool has_len() const { return at<4>().valid(); }
-  uint32_t len() const { return at<4>().as_uint32(); }
-  bool has_flags() const { return at<5>().valid(); }
-  uint32_t flags() const { return at<5>().as_uint32(); }
-};
-
-class Ext4WriteBeginFtraceEvent : public ::protozero::Message {
- public:
-  using Decoder = Ext4WriteBeginFtraceEvent_Decoder;
-  enum : int32_t {
-    kDevFieldNumber = 1,
-    kInoFieldNumber = 2,
-    kPosFieldNumber = 3,
-    kLenFieldNumber = 4,
-    kFlagsFieldNumber = 5,
-  };
-
-  using FieldMetadata_Dev =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      Ext4WriteBeginFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Dev kDev() { return {}; }
-  void set_dev(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Dev::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Ino =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      Ext4WriteBeginFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Ino kIno() { return {}; }
-  void set_ino(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Ino::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Pos =
-    ::protozero::proto_utils::FieldMetadata<
-      3,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt64,
-      int64_t,
-      Ext4WriteBeginFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Pos kPos() { return {}; }
-  void set_pos(int64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Pos::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Len =
-    ::protozero::proto_utils::FieldMetadata<
-      4,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      Ext4WriteBeginFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Len kLen() { return {}; }
-  void set_len(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Len::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Flags =
-    ::protozero::proto_utils::FieldMetadata<
-      5,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      Ext4WriteBeginFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Flags kFlags() { return {}; }
-  void set_flags(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Flags::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-};
-
-class Ext4UnlinkExitFtraceEvent_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/3, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  Ext4UnlinkExitFtraceEvent_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit Ext4UnlinkExitFtraceEvent_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit Ext4UnlinkExitFtraceEvent_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_dev() const { return at<1>().valid(); }
-  uint64_t dev() const { return at<1>().as_uint64(); }
-  bool has_ino() const { return at<2>().valid(); }
-  uint64_t ino() const { return at<2>().as_uint64(); }
-  bool has_ret() const { return at<3>().valid(); }
-  int32_t ret() const { return at<3>().as_int32(); }
-};
-
-class Ext4UnlinkExitFtraceEvent : public ::protozero::Message {
- public:
-  using Decoder = Ext4UnlinkExitFtraceEvent_Decoder;
-  enum : int32_t {
-    kDevFieldNumber = 1,
-    kInoFieldNumber = 2,
-    kRetFieldNumber = 3,
-  };
-
-  using FieldMetadata_Dev =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      Ext4UnlinkExitFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Dev kDev() { return {}; }
-  void set_dev(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Dev::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Ino =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      Ext4UnlinkExitFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Ino kIno() { return {}; }
-  void set_ino(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Ino::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Ret =
-    ::protozero::proto_utils::FieldMetadata<
-      3,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt32,
-      int32_t,
-      Ext4UnlinkExitFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Ret kRet() { return {}; }
-  void set_ret(int32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Ret::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt32>
-        ::Append(*this, field_id, value);
-  }
-};
-
-class Ext4UnlinkEnterFtraceEvent_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/4, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  Ext4UnlinkEnterFtraceEvent_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit Ext4UnlinkEnterFtraceEvent_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit Ext4UnlinkEnterFtraceEvent_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_dev() const { return at<1>().valid(); }
-  uint64_t dev() const { return at<1>().as_uint64(); }
-  bool has_ino() const { return at<2>().valid(); }
-  uint64_t ino() const { return at<2>().as_uint64(); }
-  bool has_parent() const { return at<3>().valid(); }
-  uint64_t parent() const { return at<3>().as_uint64(); }
-  bool has_size() const { return at<4>().valid(); }
-  int64_t size() const { return at<4>().as_int64(); }
-};
-
-class Ext4UnlinkEnterFtraceEvent : public ::protozero::Message {
- public:
-  using Decoder = Ext4UnlinkEnterFtraceEvent_Decoder;
-  enum : int32_t {
-    kDevFieldNumber = 1,
-    kInoFieldNumber = 2,
-    kParentFieldNumber = 3,
-    kSizeFieldNumber = 4,
-  };
-
-  using FieldMetadata_Dev =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      Ext4UnlinkEnterFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Dev kDev() { return {}; }
-  void set_dev(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Dev::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Ino =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      Ext4UnlinkEnterFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Ino kIno() { return {}; }
-  void set_ino(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Ino::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Parent =
-    ::protozero::proto_utils::FieldMetadata<
-      3,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      Ext4UnlinkEnterFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Parent kParent() { return {}; }
-  void set_parent(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Parent::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Size =
-    ::protozero::proto_utils::FieldMetadata<
-      4,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt64,
-      int64_t,
-      Ext4UnlinkEnterFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Size kSize() { return {}; }
-  void set_size(int64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Size::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt64>
-        ::Append(*this, field_id, value);
-  }
-};
-
-class Ext4TruncateExitFtraceEvent_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/3, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  Ext4TruncateExitFtraceEvent_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit Ext4TruncateExitFtraceEvent_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit Ext4TruncateExitFtraceEvent_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_dev() const { return at<1>().valid(); }
-  uint64_t dev() const { return at<1>().as_uint64(); }
-  bool has_ino() const { return at<2>().valid(); }
-  uint64_t ino() const { return at<2>().as_uint64(); }
-  bool has_blocks() const { return at<3>().valid(); }
-  uint64_t blocks() const { return at<3>().as_uint64(); }
-};
-
-class Ext4TruncateExitFtraceEvent : public ::protozero::Message {
- public:
-  using Decoder = Ext4TruncateExitFtraceEvent_Decoder;
-  enum : int32_t {
-    kDevFieldNumber = 1,
-    kInoFieldNumber = 2,
-    kBlocksFieldNumber = 3,
-  };
-
-  using FieldMetadata_Dev =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      Ext4TruncateExitFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Dev kDev() { return {}; }
-  void set_dev(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Dev::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Ino =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      Ext4TruncateExitFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Ino kIno() { return {}; }
-  void set_ino(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Ino::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Blocks =
-    ::protozero::proto_utils::FieldMetadata<
-      3,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      Ext4TruncateExitFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Blocks kBlocks() { return {}; }
-  void set_blocks(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Blocks::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-};
-
-class Ext4TruncateEnterFtraceEvent_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/3, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  Ext4TruncateEnterFtraceEvent_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit Ext4TruncateEnterFtraceEvent_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit Ext4TruncateEnterFtraceEvent_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_dev() const { return at<1>().valid(); }
-  uint64_t dev() const { return at<1>().as_uint64(); }
-  bool has_ino() const { return at<2>().valid(); }
-  uint64_t ino() const { return at<2>().as_uint64(); }
-  bool has_blocks() const { return at<3>().valid(); }
-  uint64_t blocks() const { return at<3>().as_uint64(); }
-};
-
-class Ext4TruncateEnterFtraceEvent : public ::protozero::Message {
- public:
-  using Decoder = Ext4TruncateEnterFtraceEvent_Decoder;
-  enum : int32_t {
-    kDevFieldNumber = 1,
-    kInoFieldNumber = 2,
-    kBlocksFieldNumber = 3,
-  };
-
-  using FieldMetadata_Dev =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      Ext4TruncateEnterFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Dev kDev() { return {}; }
-  void set_dev(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Dev::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Ino =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      Ext4TruncateEnterFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Ino kIno() { return {}; }
-  void set_ino(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Ino::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Blocks =
-    ::protozero::proto_utils::FieldMetadata<
-      3,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      Ext4TruncateEnterFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Blocks kBlocks() { return {}; }
-  void set_blocks(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Blocks::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-};
-
-class Ext4TrimExtentFtraceEvent_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/5, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  Ext4TrimExtentFtraceEvent_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit Ext4TrimExtentFtraceEvent_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit Ext4TrimExtentFtraceEvent_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_dev_major() const { return at<1>().valid(); }
-  int32_t dev_major() const { return at<1>().as_int32(); }
-  bool has_dev_minor() const { return at<2>().valid(); }
-  int32_t dev_minor() const { return at<2>().as_int32(); }
-  bool has_group() const { return at<3>().valid(); }
-  uint32_t group() const { return at<3>().as_uint32(); }
-  bool has_start() const { return at<4>().valid(); }
-  int32_t start() const { return at<4>().as_int32(); }
-  bool has_len() const { return at<5>().valid(); }
-  int32_t len() const { return at<5>().as_int32(); }
-};
-
-class Ext4TrimExtentFtraceEvent : public ::protozero::Message {
- public:
-  using Decoder = Ext4TrimExtentFtraceEvent_Decoder;
-  enum : int32_t {
-    kDevMajorFieldNumber = 1,
-    kDevMinorFieldNumber = 2,
-    kGroupFieldNumber = 3,
-    kStartFieldNumber = 4,
-    kLenFieldNumber = 5,
-  };
-
-  using FieldMetadata_DevMajor =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt32,
-      int32_t,
-      Ext4TrimExtentFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_DevMajor kDevMajor() { return {}; }
-  void set_dev_major(int32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_DevMajor::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_DevMinor =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt32,
-      int32_t,
-      Ext4TrimExtentFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_DevMinor kDevMinor() { return {}; }
-  void set_dev_minor(int32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_DevMinor::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Group =
-    ::protozero::proto_utils::FieldMetadata<
-      3,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      Ext4TrimExtentFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Group kGroup() { return {}; }
-  void set_group(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Group::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Start =
-    ::protozero::proto_utils::FieldMetadata<
-      4,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt32,
-      int32_t,
-      Ext4TrimExtentFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Start kStart() { return {}; }
-  void set_start(int32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Start::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Len =
-    ::protozero::proto_utils::FieldMetadata<
-      5,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt32,
-      int32_t,
-      Ext4TrimExtentFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Len kLen() { return {}; }
-  void set_len(int32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Len::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt32>
-        ::Append(*this, field_id, value);
-  }
-};
-
-class Ext4TrimAllFreeFtraceEvent_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/5, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  Ext4TrimAllFreeFtraceEvent_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit Ext4TrimAllFreeFtraceEvent_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit Ext4TrimAllFreeFtraceEvent_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_dev_major() const { return at<1>().valid(); }
-  int32_t dev_major() const { return at<1>().as_int32(); }
-  bool has_dev_minor() const { return at<2>().valid(); }
-  int32_t dev_minor() const { return at<2>().as_int32(); }
-  bool has_group() const { return at<3>().valid(); }
-  uint32_t group() const { return at<3>().as_uint32(); }
-  bool has_start() const { return at<4>().valid(); }
-  int32_t start() const { return at<4>().as_int32(); }
-  bool has_len() const { return at<5>().valid(); }
-  int32_t len() const { return at<5>().as_int32(); }
-};
-
-class Ext4TrimAllFreeFtraceEvent : public ::protozero::Message {
- public:
-  using Decoder = Ext4TrimAllFreeFtraceEvent_Decoder;
-  enum : int32_t {
-    kDevMajorFieldNumber = 1,
-    kDevMinorFieldNumber = 2,
-    kGroupFieldNumber = 3,
-    kStartFieldNumber = 4,
-    kLenFieldNumber = 5,
-  };
-
-  using FieldMetadata_DevMajor =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt32,
-      int32_t,
-      Ext4TrimAllFreeFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_DevMajor kDevMajor() { return {}; }
-  void set_dev_major(int32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_DevMajor::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_DevMinor =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt32,
-      int32_t,
-      Ext4TrimAllFreeFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_DevMinor kDevMinor() { return {}; }
-  void set_dev_minor(int32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_DevMinor::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Group =
-    ::protozero::proto_utils::FieldMetadata<
-      3,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      Ext4TrimAllFreeFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Group kGroup() { return {}; }
-  void set_group(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Group::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Start =
-    ::protozero::proto_utils::FieldMetadata<
-      4,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt32,
-      int32_t,
-      Ext4TrimAllFreeFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Start kStart() { return {}; }
-  void set_start(int32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Start::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Len =
-    ::protozero::proto_utils::FieldMetadata<
-      5,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt32,
-      int32_t,
-      Ext4TrimAllFreeFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Len kLen() { return {}; }
-  void set_len(int32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Len::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt32>
-        ::Append(*this, field_id, value);
-  }
-};
-
-class Ext4SyncFsFtraceEvent_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/2, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  Ext4SyncFsFtraceEvent_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit Ext4SyncFsFtraceEvent_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit Ext4SyncFsFtraceEvent_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_dev() const { return at<1>().valid(); }
-  uint64_t dev() const { return at<1>().as_uint64(); }
-  bool has_wait() const { return at<2>().valid(); }
-  int32_t wait() const { return at<2>().as_int32(); }
-};
-
-class Ext4SyncFsFtraceEvent : public ::protozero::Message {
- public:
-  using Decoder = Ext4SyncFsFtraceEvent_Decoder;
-  enum : int32_t {
-    kDevFieldNumber = 1,
-    kWaitFieldNumber = 2,
-  };
-
-  using FieldMetadata_Dev =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      Ext4SyncFsFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Dev kDev() { return {}; }
-  void set_dev(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Dev::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Wait =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt32,
-      int32_t,
-      Ext4SyncFsFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Wait kWait() { return {}; }
-  void set_wait(int32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Wait::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt32>
-        ::Append(*this, field_id, value);
-  }
-};
-
-class Ext4RequestInodeFtraceEvent_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/3, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  Ext4RequestInodeFtraceEvent_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit Ext4RequestInodeFtraceEvent_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit Ext4RequestInodeFtraceEvent_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_dev() const { return at<1>().valid(); }
-  uint64_t dev() const { return at<1>().as_uint64(); }
-  bool has_dir() const { return at<2>().valid(); }
-  uint64_t dir() const { return at<2>().as_uint64(); }
-  bool has_mode() const { return at<3>().valid(); }
-  uint32_t mode() const { return at<3>().as_uint32(); }
-};
-
-class Ext4RequestInodeFtraceEvent : public ::protozero::Message {
- public:
-  using Decoder = Ext4RequestInodeFtraceEvent_Decoder;
-  enum : int32_t {
-    kDevFieldNumber = 1,
-    kDirFieldNumber = 2,
-    kModeFieldNumber = 3,
-  };
-
-  using FieldMetadata_Dev =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      Ext4RequestInodeFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Dev kDev() { return {}; }
-  void set_dev(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Dev::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Dir =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      Ext4RequestInodeFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Dir kDir() { return {}; }
-  void set_dir(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Dir::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Mode =
-    ::protozero::proto_utils::FieldMetadata<
-      3,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      Ext4RequestInodeFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Mode kMode() { return {}; }
-  void set_mode(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Mode::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-};
-
-class Ext4RequestBlocksFtraceEvent_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/10, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  Ext4RequestBlocksFtraceEvent_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit Ext4RequestBlocksFtraceEvent_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit Ext4RequestBlocksFtraceEvent_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_dev() const { return at<1>().valid(); }
-  uint64_t dev() const { return at<1>().as_uint64(); }
-  bool has_ino() const { return at<2>().valid(); }
-  uint64_t ino() const { return at<2>().as_uint64(); }
-  bool has_len() const { return at<3>().valid(); }
-  uint32_t len() const { return at<3>().as_uint32(); }
-  bool has_logical() const { return at<4>().valid(); }
-  uint32_t logical() const { return at<4>().as_uint32(); }
-  bool has_lleft() const { return at<5>().valid(); }
-  uint32_t lleft() const { return at<5>().as_uint32(); }
-  bool has_lright() const { return at<6>().valid(); }
-  uint32_t lright() const { return at<6>().as_uint32(); }
-  bool has_goal() const { return at<7>().valid(); }
-  uint64_t goal() const { return at<7>().as_uint64(); }
-  bool has_pleft() const { return at<8>().valid(); }
-  uint64_t pleft() const { return at<8>().as_uint64(); }
-  bool has_pright() const { return at<9>().valid(); }
-  uint64_t pright() const { return at<9>().as_uint64(); }
-  bool has_flags() const { return at<10>().valid(); }
-  uint32_t flags() const { return at<10>().as_uint32(); }
-};
-
-class Ext4RequestBlocksFtraceEvent : public ::protozero::Message {
- public:
-  using Decoder = Ext4RequestBlocksFtraceEvent_Decoder;
-  enum : int32_t {
-    kDevFieldNumber = 1,
-    kInoFieldNumber = 2,
-    kLenFieldNumber = 3,
-    kLogicalFieldNumber = 4,
-    kLleftFieldNumber = 5,
-    kLrightFieldNumber = 6,
-    kGoalFieldNumber = 7,
-    kPleftFieldNumber = 8,
-    kPrightFieldNumber = 9,
-    kFlagsFieldNumber = 10,
-  };
-
-  using FieldMetadata_Dev =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      Ext4RequestBlocksFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Dev kDev() { return {}; }
-  void set_dev(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Dev::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Ino =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      Ext4RequestBlocksFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Ino kIno() { return {}; }
-  void set_ino(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Ino::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Len =
-    ::protozero::proto_utils::FieldMetadata<
-      3,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      Ext4RequestBlocksFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Len kLen() { return {}; }
-  void set_len(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Len::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Logical =
-    ::protozero::proto_utils::FieldMetadata<
-      4,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      Ext4RequestBlocksFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Logical kLogical() { return {}; }
-  void set_logical(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Logical::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Lleft =
-    ::protozero::proto_utils::FieldMetadata<
-      5,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      Ext4RequestBlocksFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Lleft kLleft() { return {}; }
-  void set_lleft(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Lleft::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Lright =
-    ::protozero::proto_utils::FieldMetadata<
-      6,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      Ext4RequestBlocksFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Lright kLright() { return {}; }
-  void set_lright(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Lright::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Goal =
-    ::protozero::proto_utils::FieldMetadata<
-      7,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      Ext4RequestBlocksFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Goal kGoal() { return {}; }
-  void set_goal(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Goal::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Pleft =
-    ::protozero::proto_utils::FieldMetadata<
-      8,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      Ext4RequestBlocksFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Pleft kPleft() { return {}; }
-  void set_pleft(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Pleft::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Pright =
-    ::protozero::proto_utils::FieldMetadata<
-      9,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      Ext4RequestBlocksFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Pright kPright() { return {}; }
-  void set_pright(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Pright::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Flags =
-    ::protozero::proto_utils::FieldMetadata<
-      10,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      Ext4RequestBlocksFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Flags kFlags() { return {}; }
-  void set_flags(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Flags::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-};
-
-class Ext4RemoveBlocksFtraceEvent_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/8, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  Ext4RemoveBlocksFtraceEvent_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit Ext4RemoveBlocksFtraceEvent_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit Ext4RemoveBlocksFtraceEvent_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_dev() const { return at<1>().valid(); }
-  uint64_t dev() const { return at<1>().as_uint64(); }
-  bool has_ino() const { return at<2>().valid(); }
-  uint64_t ino() const { return at<2>().as_uint64(); }
-  bool has_from() const { return at<3>().valid(); }
-  uint32_t from() const { return at<3>().as_uint32(); }
-  bool has_to() const { return at<4>().valid(); }
-  uint32_t to() const { return at<4>().as_uint32(); }
-  bool has_partial() const { return at<5>().valid(); }
-  int64_t partial() const { return at<5>().as_int64(); }
-  bool has_ee_pblk() const { return at<6>().valid(); }
-  uint64_t ee_pblk() const { return at<6>().as_uint64(); }
-  bool has_ee_lblk() const { return at<7>().valid(); }
-  uint32_t ee_lblk() const { return at<7>().as_uint32(); }
-  bool has_ee_len() const { return at<8>().valid(); }
-  uint32_t ee_len() const { return at<8>().as_uint32(); }
-};
-
-class Ext4RemoveBlocksFtraceEvent : public ::protozero::Message {
- public:
-  using Decoder = Ext4RemoveBlocksFtraceEvent_Decoder;
-  enum : int32_t {
-    kDevFieldNumber = 1,
-    kInoFieldNumber = 2,
-    kFromFieldNumber = 3,
-    kToFieldNumber = 4,
-    kPartialFieldNumber = 5,
-    kEePblkFieldNumber = 6,
-    kEeLblkFieldNumber = 7,
-    kEeLenFieldNumber = 8,
-  };
-
-  using FieldMetadata_Dev =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      Ext4RemoveBlocksFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Dev kDev() { return {}; }
-  void set_dev(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Dev::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Ino =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      Ext4RemoveBlocksFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Ino kIno() { return {}; }
-  void set_ino(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Ino::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_From =
-    ::protozero::proto_utils::FieldMetadata<
-      3,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      Ext4RemoveBlocksFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_From kFrom() { return {}; }
-  void set_from(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_From::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_To =
-    ::protozero::proto_utils::FieldMetadata<
-      4,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      Ext4RemoveBlocksFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_To kTo() { return {}; }
-  void set_to(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_To::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Partial =
-    ::protozero::proto_utils::FieldMetadata<
-      5,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt64,
-      int64_t,
-      Ext4RemoveBlocksFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Partial kPartial() { return {}; }
-  void set_partial(int64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Partial::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_EePblk =
-    ::protozero::proto_utils::FieldMetadata<
-      6,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      Ext4RemoveBlocksFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_EePblk kEePblk() { return {}; }
-  void set_ee_pblk(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_EePblk::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_EeLblk =
-    ::protozero::proto_utils::FieldMetadata<
-      7,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      Ext4RemoveBlocksFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_EeLblk kEeLblk() { return {}; }
-  void set_ee_lblk(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_EeLblk::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_EeLen =
-    ::protozero::proto_utils::FieldMetadata<
-      8,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      Ext4RemoveBlocksFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_EeLen kEeLen() { return {}; }
-  void set_ee_len(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_EeLen::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-};
-
-class Ext4ReleasepageFtraceEvent_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/3, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  Ext4ReleasepageFtraceEvent_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit Ext4ReleasepageFtraceEvent_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit Ext4ReleasepageFtraceEvent_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_dev() const { return at<1>().valid(); }
-  uint64_t dev() const { return at<1>().as_uint64(); }
-  bool has_ino() const { return at<2>().valid(); }
-  uint64_t ino() const { return at<2>().as_uint64(); }
-  bool has_index() const { return at<3>().valid(); }
-  uint64_t index() const { return at<3>().as_uint64(); }
-};
-
-class Ext4ReleasepageFtraceEvent : public ::protozero::Message {
- public:
-  using Decoder = Ext4ReleasepageFtraceEvent_Decoder;
-  enum : int32_t {
-    kDevFieldNumber = 1,
-    kInoFieldNumber = 2,
-    kIndexFieldNumber = 3,
-  };
-
-  using FieldMetadata_Dev =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      Ext4ReleasepageFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Dev kDev() { return {}; }
-  void set_dev(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Dev::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Ino =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      Ext4ReleasepageFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Ino kIno() { return {}; }
-  void set_ino(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Ino::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Index =
-    ::protozero::proto_utils::FieldMetadata<
-      3,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      Ext4ReleasepageFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Index kIndex() { return {}; }
-  void set_index(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Index::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-};
-
-class Ext4ReadpageFtraceEvent_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/3, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  Ext4ReadpageFtraceEvent_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit Ext4ReadpageFtraceEvent_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit Ext4ReadpageFtraceEvent_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_dev() const { return at<1>().valid(); }
-  uint64_t dev() const { return at<1>().as_uint64(); }
-  bool has_ino() const { return at<2>().valid(); }
-  uint64_t ino() const { return at<2>().as_uint64(); }
-  bool has_index() const { return at<3>().valid(); }
-  uint64_t index() const { return at<3>().as_uint64(); }
-};
-
-class Ext4ReadpageFtraceEvent : public ::protozero::Message {
- public:
-  using Decoder = Ext4ReadpageFtraceEvent_Decoder;
-  enum : int32_t {
-    kDevFieldNumber = 1,
-    kInoFieldNumber = 2,
-    kIndexFieldNumber = 3,
-  };
-
-  using FieldMetadata_Dev =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      Ext4ReadpageFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Dev kDev() { return {}; }
-  void set_dev(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Dev::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Ino =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      Ext4ReadpageFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Ino kIno() { return {}; }
-  void set_ino(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Ino::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Index =
-    ::protozero::proto_utils::FieldMetadata<
-      3,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      Ext4ReadpageFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Index kIndex() { return {}; }
-  void set_index(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Index::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-};
-
-class Ext4ReadBlockBitmapLoadFtraceEvent_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/2, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  Ext4ReadBlockBitmapLoadFtraceEvent_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit Ext4ReadBlockBitmapLoadFtraceEvent_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit Ext4ReadBlockBitmapLoadFtraceEvent_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_dev() const { return at<1>().valid(); }
-  uint64_t dev() const { return at<1>().as_uint64(); }
-  bool has_group() const { return at<2>().valid(); }
-  uint32_t group() const { return at<2>().as_uint32(); }
-};
-
-class Ext4ReadBlockBitmapLoadFtraceEvent : public ::protozero::Message {
- public:
-  using Decoder = Ext4ReadBlockBitmapLoadFtraceEvent_Decoder;
-  enum : int32_t {
-    kDevFieldNumber = 1,
-    kGroupFieldNumber = 2,
-  };
-
-  using FieldMetadata_Dev =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      Ext4ReadBlockBitmapLoadFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Dev kDev() { return {}; }
-  void set_dev(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Dev::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Group =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      Ext4ReadBlockBitmapLoadFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Group kGroup() { return {}; }
-  void set_group(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Group::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-};
-
-class Ext4PunchHoleFtraceEvent_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/5, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  Ext4PunchHoleFtraceEvent_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit Ext4PunchHoleFtraceEvent_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit Ext4PunchHoleFtraceEvent_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_dev() const { return at<1>().valid(); }
-  uint64_t dev() const { return at<1>().as_uint64(); }
-  bool has_ino() const { return at<2>().valid(); }
-  uint64_t ino() const { return at<2>().as_uint64(); }
-  bool has_offset() const { return at<3>().valid(); }
-  int64_t offset() const { return at<3>().as_int64(); }
-  bool has_len() const { return at<4>().valid(); }
-  int64_t len() const { return at<4>().as_int64(); }
-  bool has_mode() const { return at<5>().valid(); }
-  int32_t mode() const { return at<5>().as_int32(); }
-};
-
-class Ext4PunchHoleFtraceEvent : public ::protozero::Message {
- public:
-  using Decoder = Ext4PunchHoleFtraceEvent_Decoder;
-  enum : int32_t {
-    kDevFieldNumber = 1,
-    kInoFieldNumber = 2,
-    kOffsetFieldNumber = 3,
-    kLenFieldNumber = 4,
-    kModeFieldNumber = 5,
-  };
-
-  using FieldMetadata_Dev =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      Ext4PunchHoleFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Dev kDev() { return {}; }
-  void set_dev(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Dev::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Ino =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      Ext4PunchHoleFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Ino kIno() { return {}; }
-  void set_ino(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Ino::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Offset =
-    ::protozero::proto_utils::FieldMetadata<
-      3,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt64,
-      int64_t,
-      Ext4PunchHoleFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Offset kOffset() { return {}; }
-  void set_offset(int64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Offset::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Len =
-    ::protozero::proto_utils::FieldMetadata<
-      4,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt64,
-      int64_t,
-      Ext4PunchHoleFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Len kLen() { return {}; }
-  void set_len(int64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Len::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Mode =
-    ::protozero::proto_utils::FieldMetadata<
-      5,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt32,
-      int32_t,
-      Ext4PunchHoleFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Mode kMode() { return {}; }
-  void set_mode(int32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Mode::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt32>
-        ::Append(*this, field_id, value);
-  }
-};
-
-class Ext4OtherInodeUpdateTimeFtraceEvent_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/6, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  Ext4OtherInodeUpdateTimeFtraceEvent_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit Ext4OtherInodeUpdateTimeFtraceEvent_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit Ext4OtherInodeUpdateTimeFtraceEvent_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_dev() const { return at<1>().valid(); }
-  uint64_t dev() const { return at<1>().as_uint64(); }
-  bool has_ino() const { return at<2>().valid(); }
-  uint64_t ino() const { return at<2>().as_uint64(); }
-  bool has_orig_ino() const { return at<3>().valid(); }
-  uint64_t orig_ino() const { return at<3>().as_uint64(); }
-  bool has_uid() const { return at<4>().valid(); }
-  uint32_t uid() const { return at<4>().as_uint32(); }
-  bool has_gid() const { return at<5>().valid(); }
-  uint32_t gid() const { return at<5>().as_uint32(); }
-  bool has_mode() const { return at<6>().valid(); }
-  uint32_t mode() const { return at<6>().as_uint32(); }
-};
-
-class Ext4OtherInodeUpdateTimeFtraceEvent : public ::protozero::Message {
- public:
-  using Decoder = Ext4OtherInodeUpdateTimeFtraceEvent_Decoder;
-  enum : int32_t {
-    kDevFieldNumber = 1,
-    kInoFieldNumber = 2,
-    kOrigInoFieldNumber = 3,
-    kUidFieldNumber = 4,
-    kGidFieldNumber = 5,
-    kModeFieldNumber = 6,
-  };
-
-  using FieldMetadata_Dev =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      Ext4OtherInodeUpdateTimeFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Dev kDev() { return {}; }
-  void set_dev(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Dev::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Ino =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      Ext4OtherInodeUpdateTimeFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Ino kIno() { return {}; }
-  void set_ino(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Ino::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_OrigIno =
-    ::protozero::proto_utils::FieldMetadata<
-      3,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      Ext4OtherInodeUpdateTimeFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_OrigIno kOrigIno() { return {}; }
-  void set_orig_ino(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_OrigIno::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Uid =
-    ::protozero::proto_utils::FieldMetadata<
-      4,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      Ext4OtherInodeUpdateTimeFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Uid kUid() { return {}; }
-  void set_uid(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Uid::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Gid =
-    ::protozero::proto_utils::FieldMetadata<
-      5,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      Ext4OtherInodeUpdateTimeFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Gid kGid() { return {}; }
-  void set_gid(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Gid::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Mode =
-    ::protozero::proto_utils::FieldMetadata<
-      6,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      Ext4OtherInodeUpdateTimeFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Mode kMode() { return {}; }
-  void set_mode(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Mode::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-};
-
-class Ext4MballocPreallocFtraceEvent_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/10, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  Ext4MballocPreallocFtraceEvent_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit Ext4MballocPreallocFtraceEvent_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit Ext4MballocPreallocFtraceEvent_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_dev() const { return at<1>().valid(); }
-  uint64_t dev() const { return at<1>().as_uint64(); }
-  bool has_ino() const { return at<2>().valid(); }
-  uint64_t ino() const { return at<2>().as_uint64(); }
-  bool has_orig_logical() const { return at<3>().valid(); }
-  uint32_t orig_logical() const { return at<3>().as_uint32(); }
-  bool has_orig_start() const { return at<4>().valid(); }
-  int32_t orig_start() const { return at<4>().as_int32(); }
-  bool has_orig_group() const { return at<5>().valid(); }
-  uint32_t orig_group() const { return at<5>().as_uint32(); }
-  bool has_orig_len() const { return at<6>().valid(); }
-  int32_t orig_len() const { return at<6>().as_int32(); }
-  bool has_result_logical() const { return at<7>().valid(); }
-  uint32_t result_logical() const { return at<7>().as_uint32(); }
-  bool has_result_start() const { return at<8>().valid(); }
-  int32_t result_start() const { return at<8>().as_int32(); }
-  bool has_result_group() const { return at<9>().valid(); }
-  uint32_t result_group() const { return at<9>().as_uint32(); }
-  bool has_result_len() const { return at<10>().valid(); }
-  int32_t result_len() const { return at<10>().as_int32(); }
-};
-
-class Ext4MballocPreallocFtraceEvent : public ::protozero::Message {
- public:
-  using Decoder = Ext4MballocPreallocFtraceEvent_Decoder;
-  enum : int32_t {
-    kDevFieldNumber = 1,
-    kInoFieldNumber = 2,
-    kOrigLogicalFieldNumber = 3,
-    kOrigStartFieldNumber = 4,
-    kOrigGroupFieldNumber = 5,
-    kOrigLenFieldNumber = 6,
-    kResultLogicalFieldNumber = 7,
-    kResultStartFieldNumber = 8,
-    kResultGroupFieldNumber = 9,
-    kResultLenFieldNumber = 10,
-  };
-
-  using FieldMetadata_Dev =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      Ext4MballocPreallocFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Dev kDev() { return {}; }
-  void set_dev(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Dev::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Ino =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      Ext4MballocPreallocFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Ino kIno() { return {}; }
-  void set_ino(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Ino::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_OrigLogical =
-    ::protozero::proto_utils::FieldMetadata<
-      3,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      Ext4MballocPreallocFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_OrigLogical kOrigLogical() { return {}; }
-  void set_orig_logical(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_OrigLogical::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_OrigStart =
-    ::protozero::proto_utils::FieldMetadata<
-      4,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt32,
-      int32_t,
-      Ext4MballocPreallocFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_OrigStart kOrigStart() { return {}; }
-  void set_orig_start(int32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_OrigStart::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_OrigGroup =
-    ::protozero::proto_utils::FieldMetadata<
-      5,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      Ext4MballocPreallocFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_OrigGroup kOrigGroup() { return {}; }
-  void set_orig_group(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_OrigGroup::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_OrigLen =
-    ::protozero::proto_utils::FieldMetadata<
-      6,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt32,
-      int32_t,
-      Ext4MballocPreallocFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_OrigLen kOrigLen() { return {}; }
-  void set_orig_len(int32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_OrigLen::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_ResultLogical =
-    ::protozero::proto_utils::FieldMetadata<
-      7,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      Ext4MballocPreallocFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_ResultLogical kResultLogical() { return {}; }
-  void set_result_logical(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_ResultLogical::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_ResultStart =
-    ::protozero::proto_utils::FieldMetadata<
-      8,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt32,
-      int32_t,
-      Ext4MballocPreallocFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_ResultStart kResultStart() { return {}; }
-  void set_result_start(int32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_ResultStart::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_ResultGroup =
-    ::protozero::proto_utils::FieldMetadata<
-      9,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      Ext4MballocPreallocFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_ResultGroup kResultGroup() { return {}; }
-  void set_result_group(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_ResultGroup::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_ResultLen =
-    ::protozero::proto_utils::FieldMetadata<
-      10,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt32,
-      int32_t,
-      Ext4MballocPreallocFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_ResultLen kResultLen() { return {}; }
-  void set_result_len(int32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_ResultLen::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt32>
-        ::Append(*this, field_id, value);
-  }
-};
-
-class Ext4MballocFreeFtraceEvent_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/5, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  Ext4MballocFreeFtraceEvent_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit Ext4MballocFreeFtraceEvent_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit Ext4MballocFreeFtraceEvent_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_dev() const { return at<1>().valid(); }
-  uint64_t dev() const { return at<1>().as_uint64(); }
-  bool has_ino() const { return at<2>().valid(); }
-  uint64_t ino() const { return at<2>().as_uint64(); }
-  bool has_result_start() const { return at<3>().valid(); }
-  int32_t result_start() const { return at<3>().as_int32(); }
-  bool has_result_group() const { return at<4>().valid(); }
-  uint32_t result_group() const { return at<4>().as_uint32(); }
-  bool has_result_len() const { return at<5>().valid(); }
-  int32_t result_len() const { return at<5>().as_int32(); }
-};
-
-class Ext4MballocFreeFtraceEvent : public ::protozero::Message {
- public:
-  using Decoder = Ext4MballocFreeFtraceEvent_Decoder;
-  enum : int32_t {
-    kDevFieldNumber = 1,
-    kInoFieldNumber = 2,
-    kResultStartFieldNumber = 3,
-    kResultGroupFieldNumber = 4,
-    kResultLenFieldNumber = 5,
-  };
-
-  using FieldMetadata_Dev =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      Ext4MballocFreeFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Dev kDev() { return {}; }
-  void set_dev(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Dev::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Ino =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      Ext4MballocFreeFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Ino kIno() { return {}; }
-  void set_ino(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Ino::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_ResultStart =
-    ::protozero::proto_utils::FieldMetadata<
-      3,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt32,
-      int32_t,
-      Ext4MballocFreeFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_ResultStart kResultStart() { return {}; }
-  void set_result_start(int32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_ResultStart::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_ResultGroup =
-    ::protozero::proto_utils::FieldMetadata<
-      4,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      Ext4MballocFreeFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_ResultGroup kResultGroup() { return {}; }
-  void set_result_group(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_ResultGroup::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_ResultLen =
-    ::protozero::proto_utils::FieldMetadata<
-      5,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt32,
-      int32_t,
-      Ext4MballocFreeFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_ResultLen kResultLen() { return {}; }
-  void set_result_len(int32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_ResultLen::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt32>
-        ::Append(*this, field_id, value);
-  }
-};
-
-class Ext4MballocDiscardFtraceEvent_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/5, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  Ext4MballocDiscardFtraceEvent_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit Ext4MballocDiscardFtraceEvent_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit Ext4MballocDiscardFtraceEvent_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_dev() const { return at<1>().valid(); }
-  uint64_t dev() const { return at<1>().as_uint64(); }
-  bool has_ino() const { return at<2>().valid(); }
-  uint64_t ino() const { return at<2>().as_uint64(); }
-  bool has_result_start() const { return at<3>().valid(); }
-  int32_t result_start() const { return at<3>().as_int32(); }
-  bool has_result_group() const { return at<4>().valid(); }
-  uint32_t result_group() const { return at<4>().as_uint32(); }
-  bool has_result_len() const { return at<5>().valid(); }
-  int32_t result_len() const { return at<5>().as_int32(); }
-};
-
-class Ext4MballocDiscardFtraceEvent : public ::protozero::Message {
- public:
-  using Decoder = Ext4MballocDiscardFtraceEvent_Decoder;
-  enum : int32_t {
-    kDevFieldNumber = 1,
-    kInoFieldNumber = 2,
-    kResultStartFieldNumber = 3,
-    kResultGroupFieldNumber = 4,
-    kResultLenFieldNumber = 5,
-  };
-
-  using FieldMetadata_Dev =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      Ext4MballocDiscardFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Dev kDev() { return {}; }
-  void set_dev(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Dev::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Ino =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      Ext4MballocDiscardFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Ino kIno() { return {}; }
-  void set_ino(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Ino::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_ResultStart =
-    ::protozero::proto_utils::FieldMetadata<
-      3,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt32,
-      int32_t,
-      Ext4MballocDiscardFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_ResultStart kResultStart() { return {}; }
-  void set_result_start(int32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_ResultStart::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_ResultGroup =
-    ::protozero::proto_utils::FieldMetadata<
-      4,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      Ext4MballocDiscardFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_ResultGroup kResultGroup() { return {}; }
-  void set_result_group(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_ResultGroup::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_ResultLen =
-    ::protozero::proto_utils::FieldMetadata<
-      5,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt32,
-      int32_t,
-      Ext4MballocDiscardFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_ResultLen kResultLen() { return {}; }
-  void set_result_len(int32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_ResultLen::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt32>
-        ::Append(*this, field_id, value);
-  }
-};
-
-class Ext4MballocAllocFtraceEvent_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/20, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  Ext4MballocAllocFtraceEvent_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit Ext4MballocAllocFtraceEvent_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit Ext4MballocAllocFtraceEvent_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_dev() const { return at<1>().valid(); }
-  uint64_t dev() const { return at<1>().as_uint64(); }
-  bool has_ino() const { return at<2>().valid(); }
-  uint64_t ino() const { return at<2>().as_uint64(); }
-  bool has_orig_logical() const { return at<3>().valid(); }
-  uint32_t orig_logical() const { return at<3>().as_uint32(); }
-  bool has_orig_start() const { return at<4>().valid(); }
-  int32_t orig_start() const { return at<4>().as_int32(); }
-  bool has_orig_group() const { return at<5>().valid(); }
-  uint32_t orig_group() const { return at<5>().as_uint32(); }
-  bool has_orig_len() const { return at<6>().valid(); }
-  int32_t orig_len() const { return at<6>().as_int32(); }
-  bool has_goal_logical() const { return at<7>().valid(); }
-  uint32_t goal_logical() const { return at<7>().as_uint32(); }
-  bool has_goal_start() const { return at<8>().valid(); }
-  int32_t goal_start() const { return at<8>().as_int32(); }
-  bool has_goal_group() const { return at<9>().valid(); }
-  uint32_t goal_group() const { return at<9>().as_uint32(); }
-  bool has_goal_len() const { return at<10>().valid(); }
-  int32_t goal_len() const { return at<10>().as_int32(); }
-  bool has_result_logical() const { return at<11>().valid(); }
-  uint32_t result_logical() const { return at<11>().as_uint32(); }
-  bool has_result_start() const { return at<12>().valid(); }
-  int32_t result_start() const { return at<12>().as_int32(); }
-  bool has_result_group() const { return at<13>().valid(); }
-  uint32_t result_group() const { return at<13>().as_uint32(); }
-  bool has_result_len() const { return at<14>().valid(); }
-  int32_t result_len() const { return at<14>().as_int32(); }
-  bool has_found() const { return at<15>().valid(); }
-  uint32_t found() const { return at<15>().as_uint32(); }
-  bool has_groups() const { return at<16>().valid(); }
-  uint32_t groups() const { return at<16>().as_uint32(); }
-  bool has_buddy() const { return at<17>().valid(); }
-  uint32_t buddy() const { return at<17>().as_uint32(); }
-  bool has_flags() const { return at<18>().valid(); }
-  uint32_t flags() const { return at<18>().as_uint32(); }
-  bool has_tail() const { return at<19>().valid(); }
-  uint32_t tail() const { return at<19>().as_uint32(); }
-  bool has_cr() const { return at<20>().valid(); }
-  uint32_t cr() const { return at<20>().as_uint32(); }
-};
-
-class Ext4MballocAllocFtraceEvent : public ::protozero::Message {
- public:
-  using Decoder = Ext4MballocAllocFtraceEvent_Decoder;
-  enum : int32_t {
-    kDevFieldNumber = 1,
-    kInoFieldNumber = 2,
-    kOrigLogicalFieldNumber = 3,
-    kOrigStartFieldNumber = 4,
-    kOrigGroupFieldNumber = 5,
-    kOrigLenFieldNumber = 6,
-    kGoalLogicalFieldNumber = 7,
-    kGoalStartFieldNumber = 8,
-    kGoalGroupFieldNumber = 9,
-    kGoalLenFieldNumber = 10,
-    kResultLogicalFieldNumber = 11,
-    kResultStartFieldNumber = 12,
-    kResultGroupFieldNumber = 13,
-    kResultLenFieldNumber = 14,
-    kFoundFieldNumber = 15,
-    kGroupsFieldNumber = 16,
-    kBuddyFieldNumber = 17,
-    kFlagsFieldNumber = 18,
-    kTailFieldNumber = 19,
-    kCrFieldNumber = 20,
-  };
-
-  using FieldMetadata_Dev =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      Ext4MballocAllocFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Dev kDev() { return {}; }
-  void set_dev(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Dev::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Ino =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      Ext4MballocAllocFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Ino kIno() { return {}; }
-  void set_ino(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Ino::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_OrigLogical =
-    ::protozero::proto_utils::FieldMetadata<
-      3,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      Ext4MballocAllocFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_OrigLogical kOrigLogical() { return {}; }
-  void set_orig_logical(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_OrigLogical::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_OrigStart =
-    ::protozero::proto_utils::FieldMetadata<
-      4,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt32,
-      int32_t,
-      Ext4MballocAllocFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_OrigStart kOrigStart() { return {}; }
-  void set_orig_start(int32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_OrigStart::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_OrigGroup =
-    ::protozero::proto_utils::FieldMetadata<
-      5,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      Ext4MballocAllocFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_OrigGroup kOrigGroup() { return {}; }
-  void set_orig_group(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_OrigGroup::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_OrigLen =
-    ::protozero::proto_utils::FieldMetadata<
-      6,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt32,
-      int32_t,
-      Ext4MballocAllocFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_OrigLen kOrigLen() { return {}; }
-  void set_orig_len(int32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_OrigLen::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_GoalLogical =
-    ::protozero::proto_utils::FieldMetadata<
-      7,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      Ext4MballocAllocFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_GoalLogical kGoalLogical() { return {}; }
-  void set_goal_logical(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_GoalLogical::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_GoalStart =
-    ::protozero::proto_utils::FieldMetadata<
-      8,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt32,
-      int32_t,
-      Ext4MballocAllocFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_GoalStart kGoalStart() { return {}; }
-  void set_goal_start(int32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_GoalStart::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_GoalGroup =
-    ::protozero::proto_utils::FieldMetadata<
-      9,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      Ext4MballocAllocFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_GoalGroup kGoalGroup() { return {}; }
-  void set_goal_group(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_GoalGroup::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_GoalLen =
-    ::protozero::proto_utils::FieldMetadata<
-      10,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt32,
-      int32_t,
-      Ext4MballocAllocFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_GoalLen kGoalLen() { return {}; }
-  void set_goal_len(int32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_GoalLen::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_ResultLogical =
-    ::protozero::proto_utils::FieldMetadata<
-      11,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      Ext4MballocAllocFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_ResultLogical kResultLogical() { return {}; }
-  void set_result_logical(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_ResultLogical::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_ResultStart =
-    ::protozero::proto_utils::FieldMetadata<
-      12,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt32,
-      int32_t,
-      Ext4MballocAllocFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_ResultStart kResultStart() { return {}; }
-  void set_result_start(int32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_ResultStart::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_ResultGroup =
-    ::protozero::proto_utils::FieldMetadata<
-      13,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      Ext4MballocAllocFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_ResultGroup kResultGroup() { return {}; }
-  void set_result_group(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_ResultGroup::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_ResultLen =
-    ::protozero::proto_utils::FieldMetadata<
-      14,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt32,
-      int32_t,
-      Ext4MballocAllocFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_ResultLen kResultLen() { return {}; }
-  void set_result_len(int32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_ResultLen::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Found =
-    ::protozero::proto_utils::FieldMetadata<
-      15,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      Ext4MballocAllocFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Found kFound() { return {}; }
-  void set_found(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Found::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Groups =
-    ::protozero::proto_utils::FieldMetadata<
-      16,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      Ext4MballocAllocFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Groups kGroups() { return {}; }
-  void set_groups(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Groups::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Buddy =
-    ::protozero::proto_utils::FieldMetadata<
-      17,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      Ext4MballocAllocFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Buddy kBuddy() { return {}; }
-  void set_buddy(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Buddy::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Flags =
-    ::protozero::proto_utils::FieldMetadata<
-      18,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      Ext4MballocAllocFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Flags kFlags() { return {}; }
-  void set_flags(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Flags::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Tail =
-    ::protozero::proto_utils::FieldMetadata<
-      19,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      Ext4MballocAllocFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Tail kTail() { return {}; }
-  void set_tail(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Tail::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Cr =
-    ::protozero::proto_utils::FieldMetadata<
-      20,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      Ext4MballocAllocFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Cr kCr() { return {}; }
-  void set_cr(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Cr::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-};
-
-class Ext4MbReleaseInodePaFtraceEvent_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/4, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  Ext4MbReleaseInodePaFtraceEvent_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit Ext4MbReleaseInodePaFtraceEvent_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit Ext4MbReleaseInodePaFtraceEvent_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_dev() const { return at<1>().valid(); }
-  uint64_t dev() const { return at<1>().as_uint64(); }
-  bool has_ino() const { return at<2>().valid(); }
-  uint64_t ino() const { return at<2>().as_uint64(); }
-  bool has_block() const { return at<3>().valid(); }
-  uint64_t block() const { return at<3>().as_uint64(); }
-  bool has_count() const { return at<4>().valid(); }
-  uint32_t count() const { return at<4>().as_uint32(); }
-};
-
-class Ext4MbReleaseInodePaFtraceEvent : public ::protozero::Message {
- public:
-  using Decoder = Ext4MbReleaseInodePaFtraceEvent_Decoder;
-  enum : int32_t {
-    kDevFieldNumber = 1,
-    kInoFieldNumber = 2,
-    kBlockFieldNumber = 3,
-    kCountFieldNumber = 4,
-  };
-
-  using FieldMetadata_Dev =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      Ext4MbReleaseInodePaFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Dev kDev() { return {}; }
-  void set_dev(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Dev::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Ino =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      Ext4MbReleaseInodePaFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Ino kIno() { return {}; }
-  void set_ino(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Ino::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Block =
-    ::protozero::proto_utils::FieldMetadata<
-      3,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      Ext4MbReleaseInodePaFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Block kBlock() { return {}; }
-  void set_block(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Block::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Count =
-    ::protozero::proto_utils::FieldMetadata<
-      4,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      Ext4MbReleaseInodePaFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Count kCount() { return {}; }
-  void set_count(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Count::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-};
-
-class Ext4MbReleaseGroupPaFtraceEvent_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/3, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  Ext4MbReleaseGroupPaFtraceEvent_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit Ext4MbReleaseGroupPaFtraceEvent_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit Ext4MbReleaseGroupPaFtraceEvent_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_dev() const { return at<1>().valid(); }
-  uint64_t dev() const { return at<1>().as_uint64(); }
-  bool has_pa_pstart() const { return at<2>().valid(); }
-  uint64_t pa_pstart() const { return at<2>().as_uint64(); }
-  bool has_pa_len() const { return at<3>().valid(); }
-  uint32_t pa_len() const { return at<3>().as_uint32(); }
-};
-
-class Ext4MbReleaseGroupPaFtraceEvent : public ::protozero::Message {
- public:
-  using Decoder = Ext4MbReleaseGroupPaFtraceEvent_Decoder;
-  enum : int32_t {
-    kDevFieldNumber = 1,
-    kPaPstartFieldNumber = 2,
-    kPaLenFieldNumber = 3,
-  };
-
-  using FieldMetadata_Dev =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      Ext4MbReleaseGroupPaFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Dev kDev() { return {}; }
-  void set_dev(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Dev::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_PaPstart =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      Ext4MbReleaseGroupPaFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_PaPstart kPaPstart() { return {}; }
-  void set_pa_pstart(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_PaPstart::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_PaLen =
-    ::protozero::proto_utils::FieldMetadata<
-      3,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      Ext4MbReleaseGroupPaFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_PaLen kPaLen() { return {}; }
-  void set_pa_len(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_PaLen::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-};
-
-class Ext4MbNewInodePaFtraceEvent_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/5, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  Ext4MbNewInodePaFtraceEvent_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit Ext4MbNewInodePaFtraceEvent_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit Ext4MbNewInodePaFtraceEvent_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_dev() const { return at<1>().valid(); }
-  uint64_t dev() const { return at<1>().as_uint64(); }
-  bool has_ino() const { return at<2>().valid(); }
-  uint64_t ino() const { return at<2>().as_uint64(); }
-  bool has_pa_pstart() const { return at<3>().valid(); }
-  uint64_t pa_pstart() const { return at<3>().as_uint64(); }
-  bool has_pa_lstart() const { return at<4>().valid(); }
-  uint64_t pa_lstart() const { return at<4>().as_uint64(); }
-  bool has_pa_len() const { return at<5>().valid(); }
-  uint32_t pa_len() const { return at<5>().as_uint32(); }
-};
-
-class Ext4MbNewInodePaFtraceEvent : public ::protozero::Message {
- public:
-  using Decoder = Ext4MbNewInodePaFtraceEvent_Decoder;
-  enum : int32_t {
-    kDevFieldNumber = 1,
-    kInoFieldNumber = 2,
-    kPaPstartFieldNumber = 3,
-    kPaLstartFieldNumber = 4,
-    kPaLenFieldNumber = 5,
-  };
-
-  using FieldMetadata_Dev =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      Ext4MbNewInodePaFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Dev kDev() { return {}; }
-  void set_dev(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Dev::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Ino =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      Ext4MbNewInodePaFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Ino kIno() { return {}; }
-  void set_ino(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Ino::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_PaPstart =
-    ::protozero::proto_utils::FieldMetadata<
-      3,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      Ext4MbNewInodePaFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_PaPstart kPaPstart() { return {}; }
-  void set_pa_pstart(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_PaPstart::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_PaLstart =
-    ::protozero::proto_utils::FieldMetadata<
-      4,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      Ext4MbNewInodePaFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_PaLstart kPaLstart() { return {}; }
-  void set_pa_lstart(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_PaLstart::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_PaLen =
-    ::protozero::proto_utils::FieldMetadata<
-      5,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      Ext4MbNewInodePaFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_PaLen kPaLen() { return {}; }
-  void set_pa_len(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_PaLen::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-};
-
-class Ext4MbNewGroupPaFtraceEvent_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/5, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  Ext4MbNewGroupPaFtraceEvent_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit Ext4MbNewGroupPaFtraceEvent_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit Ext4MbNewGroupPaFtraceEvent_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_dev() const { return at<1>().valid(); }
-  uint64_t dev() const { return at<1>().as_uint64(); }
-  bool has_ino() const { return at<2>().valid(); }
-  uint64_t ino() const { return at<2>().as_uint64(); }
-  bool has_pa_pstart() const { return at<3>().valid(); }
-  uint64_t pa_pstart() const { return at<3>().as_uint64(); }
-  bool has_pa_lstart() const { return at<4>().valid(); }
-  uint64_t pa_lstart() const { return at<4>().as_uint64(); }
-  bool has_pa_len() const { return at<5>().valid(); }
-  uint32_t pa_len() const { return at<5>().as_uint32(); }
-};
-
-class Ext4MbNewGroupPaFtraceEvent : public ::protozero::Message {
- public:
-  using Decoder = Ext4MbNewGroupPaFtraceEvent_Decoder;
-  enum : int32_t {
-    kDevFieldNumber = 1,
-    kInoFieldNumber = 2,
-    kPaPstartFieldNumber = 3,
-    kPaLstartFieldNumber = 4,
-    kPaLenFieldNumber = 5,
-  };
-
-  using FieldMetadata_Dev =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      Ext4MbNewGroupPaFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Dev kDev() { return {}; }
-  void set_dev(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Dev::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Ino =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      Ext4MbNewGroupPaFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Ino kIno() { return {}; }
-  void set_ino(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Ino::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_PaPstart =
-    ::protozero::proto_utils::FieldMetadata<
-      3,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      Ext4MbNewGroupPaFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_PaPstart kPaPstart() { return {}; }
-  void set_pa_pstart(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_PaPstart::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_PaLstart =
-    ::protozero::proto_utils::FieldMetadata<
-      4,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      Ext4MbNewGroupPaFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_PaLstart kPaLstart() { return {}; }
-  void set_pa_lstart(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_PaLstart::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_PaLen =
-    ::protozero::proto_utils::FieldMetadata<
-      5,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      Ext4MbNewGroupPaFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_PaLen kPaLen() { return {}; }
-  void set_pa_len(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_PaLen::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-};
-
-class Ext4MbDiscardPreallocationsFtraceEvent_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/2, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  Ext4MbDiscardPreallocationsFtraceEvent_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit Ext4MbDiscardPreallocationsFtraceEvent_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit Ext4MbDiscardPreallocationsFtraceEvent_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_dev() const { return at<1>().valid(); }
-  uint64_t dev() const { return at<1>().as_uint64(); }
-  bool has_needed() const { return at<2>().valid(); }
-  int32_t needed() const { return at<2>().as_int32(); }
-};
-
-class Ext4MbDiscardPreallocationsFtraceEvent : public ::protozero::Message {
- public:
-  using Decoder = Ext4MbDiscardPreallocationsFtraceEvent_Decoder;
-  enum : int32_t {
-    kDevFieldNumber = 1,
-    kNeededFieldNumber = 2,
-  };
-
-  using FieldMetadata_Dev =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      Ext4MbDiscardPreallocationsFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Dev kDev() { return {}; }
-  void set_dev(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Dev::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Needed =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt32,
-      int32_t,
-      Ext4MbDiscardPreallocationsFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Needed kNeeded() { return {}; }
-  void set_needed(int32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Needed::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt32>
-        ::Append(*this, field_id, value);
-  }
-};
-
-class Ext4MbBuddyBitmapLoadFtraceEvent_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/2, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  Ext4MbBuddyBitmapLoadFtraceEvent_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit Ext4MbBuddyBitmapLoadFtraceEvent_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit Ext4MbBuddyBitmapLoadFtraceEvent_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_dev() const { return at<1>().valid(); }
-  uint64_t dev() const { return at<1>().as_uint64(); }
-  bool has_group() const { return at<2>().valid(); }
-  uint32_t group() const { return at<2>().as_uint32(); }
-};
-
-class Ext4MbBuddyBitmapLoadFtraceEvent : public ::protozero::Message {
- public:
-  using Decoder = Ext4MbBuddyBitmapLoadFtraceEvent_Decoder;
-  enum : int32_t {
-    kDevFieldNumber = 1,
-    kGroupFieldNumber = 2,
-  };
-
-  using FieldMetadata_Dev =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      Ext4MbBuddyBitmapLoadFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Dev kDev() { return {}; }
-  void set_dev(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Dev::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Group =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      Ext4MbBuddyBitmapLoadFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Group kGroup() { return {}; }
-  void set_group(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Group::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-};
-
-class Ext4MbBitmapLoadFtraceEvent_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/2, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  Ext4MbBitmapLoadFtraceEvent_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit Ext4MbBitmapLoadFtraceEvent_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit Ext4MbBitmapLoadFtraceEvent_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_dev() const { return at<1>().valid(); }
-  uint64_t dev() const { return at<1>().as_uint64(); }
-  bool has_group() const { return at<2>().valid(); }
-  uint32_t group() const { return at<2>().as_uint32(); }
-};
-
-class Ext4MbBitmapLoadFtraceEvent : public ::protozero::Message {
- public:
-  using Decoder = Ext4MbBitmapLoadFtraceEvent_Decoder;
-  enum : int32_t {
-    kDevFieldNumber = 1,
-    kGroupFieldNumber = 2,
-  };
-
-  using FieldMetadata_Dev =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      Ext4MbBitmapLoadFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Dev kDev() { return {}; }
-  void set_dev(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Dev::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Group =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      Ext4MbBitmapLoadFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Group kGroup() { return {}; }
-  void set_group(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Group::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-};
-
-class Ext4MarkInodeDirtyFtraceEvent_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/3, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  Ext4MarkInodeDirtyFtraceEvent_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit Ext4MarkInodeDirtyFtraceEvent_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit Ext4MarkInodeDirtyFtraceEvent_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_dev() const { return at<1>().valid(); }
-  uint64_t dev() const { return at<1>().as_uint64(); }
-  bool has_ino() const { return at<2>().valid(); }
-  uint64_t ino() const { return at<2>().as_uint64(); }
-  bool has_ip() const { return at<3>().valid(); }
-  uint64_t ip() const { return at<3>().as_uint64(); }
-};
-
-class Ext4MarkInodeDirtyFtraceEvent : public ::protozero::Message {
- public:
-  using Decoder = Ext4MarkInodeDirtyFtraceEvent_Decoder;
-  enum : int32_t {
-    kDevFieldNumber = 1,
-    kInoFieldNumber = 2,
-    kIpFieldNumber = 3,
-  };
-
-  using FieldMetadata_Dev =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      Ext4MarkInodeDirtyFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Dev kDev() { return {}; }
-  void set_dev(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Dev::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Ino =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      Ext4MarkInodeDirtyFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Ino kIno() { return {}; }
-  void set_ino(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Ino::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Ip =
-    ::protozero::proto_utils::FieldMetadata<
-      3,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      Ext4MarkInodeDirtyFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Ip kIp() { return {}; }
-  void set_ip(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Ip::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-};
-
-class Ext4LoadInodeBitmapFtraceEvent_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/2, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  Ext4LoadInodeBitmapFtraceEvent_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit Ext4LoadInodeBitmapFtraceEvent_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit Ext4LoadInodeBitmapFtraceEvent_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_dev() const { return at<1>().valid(); }
-  uint64_t dev() const { return at<1>().as_uint64(); }
-  bool has_group() const { return at<2>().valid(); }
-  uint32_t group() const { return at<2>().as_uint32(); }
-};
-
-class Ext4LoadInodeBitmapFtraceEvent : public ::protozero::Message {
- public:
-  using Decoder = Ext4LoadInodeBitmapFtraceEvent_Decoder;
-  enum : int32_t {
-    kDevFieldNumber = 1,
-    kGroupFieldNumber = 2,
-  };
-
-  using FieldMetadata_Dev =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      Ext4LoadInodeBitmapFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Dev kDev() { return {}; }
-  void set_dev(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Dev::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Group =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      Ext4LoadInodeBitmapFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Group kGroup() { return {}; }
-  void set_group(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Group::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-};
-
-class Ext4LoadInodeFtraceEvent_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/2, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  Ext4LoadInodeFtraceEvent_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit Ext4LoadInodeFtraceEvent_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit Ext4LoadInodeFtraceEvent_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_dev() const { return at<1>().valid(); }
-  uint64_t dev() const { return at<1>().as_uint64(); }
-  bool has_ino() const { return at<2>().valid(); }
-  uint64_t ino() const { return at<2>().as_uint64(); }
-};
-
-class Ext4LoadInodeFtraceEvent : public ::protozero::Message {
- public:
-  using Decoder = Ext4LoadInodeFtraceEvent_Decoder;
-  enum : int32_t {
-    kDevFieldNumber = 1,
-    kInoFieldNumber = 2,
-  };
-
-  using FieldMetadata_Dev =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      Ext4LoadInodeFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Dev kDev() { return {}; }
-  void set_dev(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Dev::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Ino =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      Ext4LoadInodeFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Ino kIno() { return {}; }
-  void set_ino(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Ino::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-};
-
-class Ext4JournalledWriteEndFtraceEvent_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/5, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  Ext4JournalledWriteEndFtraceEvent_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit Ext4JournalledWriteEndFtraceEvent_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit Ext4JournalledWriteEndFtraceEvent_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_dev() const { return at<1>().valid(); }
-  uint64_t dev() const { return at<1>().as_uint64(); }
-  bool has_ino() const { return at<2>().valid(); }
-  uint64_t ino() const { return at<2>().as_uint64(); }
-  bool has_pos() const { return at<3>().valid(); }
-  int64_t pos() const { return at<3>().as_int64(); }
-  bool has_len() const { return at<4>().valid(); }
-  uint32_t len() const { return at<4>().as_uint32(); }
-  bool has_copied() const { return at<5>().valid(); }
-  uint32_t copied() const { return at<5>().as_uint32(); }
-};
-
-class Ext4JournalledWriteEndFtraceEvent : public ::protozero::Message {
- public:
-  using Decoder = Ext4JournalledWriteEndFtraceEvent_Decoder;
-  enum : int32_t {
-    kDevFieldNumber = 1,
-    kInoFieldNumber = 2,
-    kPosFieldNumber = 3,
-    kLenFieldNumber = 4,
-    kCopiedFieldNumber = 5,
-  };
-
-  using FieldMetadata_Dev =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      Ext4JournalledWriteEndFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Dev kDev() { return {}; }
-  void set_dev(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Dev::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Ino =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      Ext4JournalledWriteEndFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Ino kIno() { return {}; }
-  void set_ino(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Ino::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Pos =
-    ::protozero::proto_utils::FieldMetadata<
-      3,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt64,
-      int64_t,
-      Ext4JournalledWriteEndFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Pos kPos() { return {}; }
-  void set_pos(int64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Pos::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Len =
-    ::protozero::proto_utils::FieldMetadata<
-      4,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      Ext4JournalledWriteEndFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Len kLen() { return {}; }
-  void set_len(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Len::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Copied =
-    ::protozero::proto_utils::FieldMetadata<
-      5,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      Ext4JournalledWriteEndFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Copied kCopied() { return {}; }
-  void set_copied(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Copied::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-};
-
-class Ext4JournalledInvalidatepageFtraceEvent_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/5, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  Ext4JournalledInvalidatepageFtraceEvent_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit Ext4JournalledInvalidatepageFtraceEvent_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit Ext4JournalledInvalidatepageFtraceEvent_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_dev() const { return at<1>().valid(); }
-  uint64_t dev() const { return at<1>().as_uint64(); }
-  bool has_ino() const { return at<2>().valid(); }
-  uint64_t ino() const { return at<2>().as_uint64(); }
-  bool has_index() const { return at<3>().valid(); }
-  uint64_t index() const { return at<3>().as_uint64(); }
-  bool has_offset() const { return at<4>().valid(); }
-  uint64_t offset() const { return at<4>().as_uint64(); }
-  bool has_length() const { return at<5>().valid(); }
-  uint32_t length() const { return at<5>().as_uint32(); }
-};
-
-class Ext4JournalledInvalidatepageFtraceEvent : public ::protozero::Message {
- public:
-  using Decoder = Ext4JournalledInvalidatepageFtraceEvent_Decoder;
-  enum : int32_t {
-    kDevFieldNumber = 1,
-    kInoFieldNumber = 2,
-    kIndexFieldNumber = 3,
-    kOffsetFieldNumber = 4,
-    kLengthFieldNumber = 5,
-  };
-
-  using FieldMetadata_Dev =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      Ext4JournalledInvalidatepageFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Dev kDev() { return {}; }
-  void set_dev(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Dev::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Ino =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      Ext4JournalledInvalidatepageFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Ino kIno() { return {}; }
-  void set_ino(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Ino::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Index =
-    ::protozero::proto_utils::FieldMetadata<
-      3,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      Ext4JournalledInvalidatepageFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Index kIndex() { return {}; }
-  void set_index(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Index::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Offset =
-    ::protozero::proto_utils::FieldMetadata<
-      4,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      Ext4JournalledInvalidatepageFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Offset kOffset() { return {}; }
-  void set_offset(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Offset::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Length =
-    ::protozero::proto_utils::FieldMetadata<
-      5,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      Ext4JournalledInvalidatepageFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Length kLength() { return {}; }
-  void set_length(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Length::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-};
-
-class Ext4JournalStartReservedFtraceEvent_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/3, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  Ext4JournalStartReservedFtraceEvent_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit Ext4JournalStartReservedFtraceEvent_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit Ext4JournalStartReservedFtraceEvent_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_dev() const { return at<1>().valid(); }
-  uint64_t dev() const { return at<1>().as_uint64(); }
-  bool has_ip() const { return at<2>().valid(); }
-  uint64_t ip() const { return at<2>().as_uint64(); }
-  bool has_blocks() const { return at<3>().valid(); }
-  int32_t blocks() const { return at<3>().as_int32(); }
-};
-
-class Ext4JournalStartReservedFtraceEvent : public ::protozero::Message {
- public:
-  using Decoder = Ext4JournalStartReservedFtraceEvent_Decoder;
-  enum : int32_t {
-    kDevFieldNumber = 1,
-    kIpFieldNumber = 2,
-    kBlocksFieldNumber = 3,
-  };
-
-  using FieldMetadata_Dev =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      Ext4JournalStartReservedFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Dev kDev() { return {}; }
-  void set_dev(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Dev::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Ip =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      Ext4JournalStartReservedFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Ip kIp() { return {}; }
-  void set_ip(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Ip::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Blocks =
-    ::protozero::proto_utils::FieldMetadata<
-      3,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt32,
-      int32_t,
-      Ext4JournalStartReservedFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Blocks kBlocks() { return {}; }
-  void set_blocks(int32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Blocks::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt32>
-        ::Append(*this, field_id, value);
-  }
-};
-
-class Ext4JournalStartFtraceEvent_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/5, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  Ext4JournalStartFtraceEvent_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit Ext4JournalStartFtraceEvent_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit Ext4JournalStartFtraceEvent_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_dev() const { return at<1>().valid(); }
-  uint64_t dev() const { return at<1>().as_uint64(); }
-  bool has_ip() const { return at<2>().valid(); }
-  uint64_t ip() const { return at<2>().as_uint64(); }
-  bool has_blocks() const { return at<3>().valid(); }
-  int32_t blocks() const { return at<3>().as_int32(); }
-  bool has_rsv_blocks() const { return at<4>().valid(); }
-  int32_t rsv_blocks() const { return at<4>().as_int32(); }
-  bool has_nblocks() const { return at<5>().valid(); }
-  int32_t nblocks() const { return at<5>().as_int32(); }
-};
-
-class Ext4JournalStartFtraceEvent : public ::protozero::Message {
- public:
-  using Decoder = Ext4JournalStartFtraceEvent_Decoder;
-  enum : int32_t {
-    kDevFieldNumber = 1,
-    kIpFieldNumber = 2,
-    kBlocksFieldNumber = 3,
-    kRsvBlocksFieldNumber = 4,
-    kNblocksFieldNumber = 5,
-  };
-
-  using FieldMetadata_Dev =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      Ext4JournalStartFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Dev kDev() { return {}; }
-  void set_dev(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Dev::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Ip =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      Ext4JournalStartFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Ip kIp() { return {}; }
-  void set_ip(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Ip::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Blocks =
-    ::protozero::proto_utils::FieldMetadata<
-      3,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt32,
-      int32_t,
-      Ext4JournalStartFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Blocks kBlocks() { return {}; }
-  void set_blocks(int32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Blocks::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_RsvBlocks =
-    ::protozero::proto_utils::FieldMetadata<
-      4,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt32,
-      int32_t,
-      Ext4JournalStartFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_RsvBlocks kRsvBlocks() { return {}; }
-  void set_rsv_blocks(int32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_RsvBlocks::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Nblocks =
-    ::protozero::proto_utils::FieldMetadata<
-      5,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt32,
-      int32_t,
-      Ext4JournalStartFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Nblocks kNblocks() { return {}; }
-  void set_nblocks(int32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Nblocks::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt32>
-        ::Append(*this, field_id, value);
-  }
-};
-
-class Ext4InvalidatepageFtraceEvent_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/5, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  Ext4InvalidatepageFtraceEvent_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit Ext4InvalidatepageFtraceEvent_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit Ext4InvalidatepageFtraceEvent_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_dev() const { return at<1>().valid(); }
-  uint64_t dev() const { return at<1>().as_uint64(); }
-  bool has_ino() const { return at<2>().valid(); }
-  uint64_t ino() const { return at<2>().as_uint64(); }
-  bool has_index() const { return at<3>().valid(); }
-  uint64_t index() const { return at<3>().as_uint64(); }
-  bool has_offset() const { return at<4>().valid(); }
-  uint64_t offset() const { return at<4>().as_uint64(); }
-  bool has_length() const { return at<5>().valid(); }
-  uint32_t length() const { return at<5>().as_uint32(); }
-};
-
-class Ext4InvalidatepageFtraceEvent : public ::protozero::Message {
- public:
-  using Decoder = Ext4InvalidatepageFtraceEvent_Decoder;
-  enum : int32_t {
-    kDevFieldNumber = 1,
-    kInoFieldNumber = 2,
-    kIndexFieldNumber = 3,
-    kOffsetFieldNumber = 4,
-    kLengthFieldNumber = 5,
-  };
-
-  using FieldMetadata_Dev =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      Ext4InvalidatepageFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Dev kDev() { return {}; }
-  void set_dev(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Dev::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Ino =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      Ext4InvalidatepageFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Ino kIno() { return {}; }
-  void set_ino(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Ino::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Index =
-    ::protozero::proto_utils::FieldMetadata<
-      3,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      Ext4InvalidatepageFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Index kIndex() { return {}; }
-  void set_index(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Index::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Offset =
-    ::protozero::proto_utils::FieldMetadata<
-      4,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      Ext4InvalidatepageFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Offset kOffset() { return {}; }
-  void set_offset(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Offset::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Length =
-    ::protozero::proto_utils::FieldMetadata<
-      5,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      Ext4InvalidatepageFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Length kLength() { return {}; }
-  void set_length(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Length::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-};
-
-class Ext4InsertRangeFtraceEvent_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/4, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  Ext4InsertRangeFtraceEvent_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit Ext4InsertRangeFtraceEvent_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit Ext4InsertRangeFtraceEvent_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_dev() const { return at<1>().valid(); }
-  uint64_t dev() const { return at<1>().as_uint64(); }
-  bool has_ino() const { return at<2>().valid(); }
-  uint64_t ino() const { return at<2>().as_uint64(); }
-  bool has_offset() const { return at<3>().valid(); }
-  int64_t offset() const { return at<3>().as_int64(); }
-  bool has_len() const { return at<4>().valid(); }
-  int64_t len() const { return at<4>().as_int64(); }
-};
-
-class Ext4InsertRangeFtraceEvent : public ::protozero::Message {
- public:
-  using Decoder = Ext4InsertRangeFtraceEvent_Decoder;
-  enum : int32_t {
-    kDevFieldNumber = 1,
-    kInoFieldNumber = 2,
-    kOffsetFieldNumber = 3,
-    kLenFieldNumber = 4,
-  };
-
-  using FieldMetadata_Dev =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      Ext4InsertRangeFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Dev kDev() { return {}; }
-  void set_dev(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Dev::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Ino =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      Ext4InsertRangeFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Ino kIno() { return {}; }
-  void set_ino(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Ino::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Offset =
-    ::protozero::proto_utils::FieldMetadata<
-      3,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt64,
-      int64_t,
-      Ext4InsertRangeFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Offset kOffset() { return {}; }
-  void set_offset(int64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Offset::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Len =
-    ::protozero::proto_utils::FieldMetadata<
-      4,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt64,
-      int64_t,
-      Ext4InsertRangeFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Len kLen() { return {}; }
-  void set_len(int64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Len::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt64>
-        ::Append(*this, field_id, value);
-  }
-};
-
-class Ext4IndMapBlocksExitFtraceEvent_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/8, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  Ext4IndMapBlocksExitFtraceEvent_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit Ext4IndMapBlocksExitFtraceEvent_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit Ext4IndMapBlocksExitFtraceEvent_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_dev() const { return at<1>().valid(); }
-  uint64_t dev() const { return at<1>().as_uint64(); }
-  bool has_ino() const { return at<2>().valid(); }
-  uint64_t ino() const { return at<2>().as_uint64(); }
-  bool has_flags() const { return at<3>().valid(); }
-  uint32_t flags() const { return at<3>().as_uint32(); }
-  bool has_pblk() const { return at<4>().valid(); }
-  uint64_t pblk() const { return at<4>().as_uint64(); }
-  bool has_lblk() const { return at<5>().valid(); }
-  uint32_t lblk() const { return at<5>().as_uint32(); }
-  bool has_len() const { return at<6>().valid(); }
-  uint32_t len() const { return at<6>().as_uint32(); }
-  bool has_mflags() const { return at<7>().valid(); }
-  uint32_t mflags() const { return at<7>().as_uint32(); }
-  bool has_ret() const { return at<8>().valid(); }
-  int32_t ret() const { return at<8>().as_int32(); }
-};
-
-class Ext4IndMapBlocksExitFtraceEvent : public ::protozero::Message {
- public:
-  using Decoder = Ext4IndMapBlocksExitFtraceEvent_Decoder;
-  enum : int32_t {
-    kDevFieldNumber = 1,
-    kInoFieldNumber = 2,
-    kFlagsFieldNumber = 3,
-    kPblkFieldNumber = 4,
-    kLblkFieldNumber = 5,
-    kLenFieldNumber = 6,
-    kMflagsFieldNumber = 7,
-    kRetFieldNumber = 8,
-  };
-
-  using FieldMetadata_Dev =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      Ext4IndMapBlocksExitFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Dev kDev() { return {}; }
-  void set_dev(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Dev::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Ino =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      Ext4IndMapBlocksExitFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Ino kIno() { return {}; }
-  void set_ino(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Ino::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Flags =
-    ::protozero::proto_utils::FieldMetadata<
-      3,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      Ext4IndMapBlocksExitFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Flags kFlags() { return {}; }
-  void set_flags(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Flags::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Pblk =
-    ::protozero::proto_utils::FieldMetadata<
-      4,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      Ext4IndMapBlocksExitFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Pblk kPblk() { return {}; }
-  void set_pblk(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Pblk::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Lblk =
-    ::protozero::proto_utils::FieldMetadata<
-      5,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      Ext4IndMapBlocksExitFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Lblk kLblk() { return {}; }
-  void set_lblk(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Lblk::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Len =
-    ::protozero::proto_utils::FieldMetadata<
-      6,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      Ext4IndMapBlocksExitFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Len kLen() { return {}; }
-  void set_len(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Len::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Mflags =
-    ::protozero::proto_utils::FieldMetadata<
-      7,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      Ext4IndMapBlocksExitFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Mflags kMflags() { return {}; }
-  void set_mflags(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Mflags::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Ret =
-    ::protozero::proto_utils::FieldMetadata<
-      8,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt32,
-      int32_t,
-      Ext4IndMapBlocksExitFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Ret kRet() { return {}; }
-  void set_ret(int32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Ret::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt32>
-        ::Append(*this, field_id, value);
-  }
-};
-
-class Ext4IndMapBlocksEnterFtraceEvent_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/5, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  Ext4IndMapBlocksEnterFtraceEvent_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit Ext4IndMapBlocksEnterFtraceEvent_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit Ext4IndMapBlocksEnterFtraceEvent_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_dev() const { return at<1>().valid(); }
-  uint64_t dev() const { return at<1>().as_uint64(); }
-  bool has_ino() const { return at<2>().valid(); }
-  uint64_t ino() const { return at<2>().as_uint64(); }
-  bool has_lblk() const { return at<3>().valid(); }
-  uint32_t lblk() const { return at<3>().as_uint32(); }
-  bool has_len() const { return at<4>().valid(); }
-  uint32_t len() const { return at<4>().as_uint32(); }
-  bool has_flags() const { return at<5>().valid(); }
-  uint32_t flags() const { return at<5>().as_uint32(); }
-};
-
-class Ext4IndMapBlocksEnterFtraceEvent : public ::protozero::Message {
- public:
-  using Decoder = Ext4IndMapBlocksEnterFtraceEvent_Decoder;
-  enum : int32_t {
-    kDevFieldNumber = 1,
-    kInoFieldNumber = 2,
-    kLblkFieldNumber = 3,
-    kLenFieldNumber = 4,
-    kFlagsFieldNumber = 5,
-  };
-
-  using FieldMetadata_Dev =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      Ext4IndMapBlocksEnterFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Dev kDev() { return {}; }
-  void set_dev(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Dev::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Ino =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      Ext4IndMapBlocksEnterFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Ino kIno() { return {}; }
-  void set_ino(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Ino::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Lblk =
-    ::protozero::proto_utils::FieldMetadata<
-      3,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      Ext4IndMapBlocksEnterFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Lblk kLblk() { return {}; }
-  void set_lblk(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Lblk::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Len =
-    ::protozero::proto_utils::FieldMetadata<
-      4,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      Ext4IndMapBlocksEnterFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Len kLen() { return {}; }
-  void set_len(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Len::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Flags =
-    ::protozero::proto_utils::FieldMetadata<
-      5,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      Ext4IndMapBlocksEnterFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Flags kFlags() { return {}; }
-  void set_flags(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Flags::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-};
-
-class Ext4GetReservedClusterAllocFtraceEvent_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/4, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  Ext4GetReservedClusterAllocFtraceEvent_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit Ext4GetReservedClusterAllocFtraceEvent_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit Ext4GetReservedClusterAllocFtraceEvent_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_dev() const { return at<1>().valid(); }
-  uint64_t dev() const { return at<1>().as_uint64(); }
-  bool has_ino() const { return at<2>().valid(); }
-  uint64_t ino() const { return at<2>().as_uint64(); }
-  bool has_lblk() const { return at<3>().valid(); }
-  uint32_t lblk() const { return at<3>().as_uint32(); }
-  bool has_len() const { return at<4>().valid(); }
-  uint32_t len() const { return at<4>().as_uint32(); }
-};
-
-class Ext4GetReservedClusterAllocFtraceEvent : public ::protozero::Message {
- public:
-  using Decoder = Ext4GetReservedClusterAllocFtraceEvent_Decoder;
-  enum : int32_t {
-    kDevFieldNumber = 1,
-    kInoFieldNumber = 2,
-    kLblkFieldNumber = 3,
-    kLenFieldNumber = 4,
-  };
-
-  using FieldMetadata_Dev =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      Ext4GetReservedClusterAllocFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Dev kDev() { return {}; }
-  void set_dev(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Dev::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Ino =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      Ext4GetReservedClusterAllocFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Ino kIno() { return {}; }
-  void set_ino(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Ino::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Lblk =
-    ::protozero::proto_utils::FieldMetadata<
-      3,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      Ext4GetReservedClusterAllocFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Lblk kLblk() { return {}; }
-  void set_lblk(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Lblk::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Len =
-    ::protozero::proto_utils::FieldMetadata<
-      4,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      Ext4GetReservedClusterAllocFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Len kLen() { return {}; }
-  void set_len(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Len::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-};
-
-class Ext4GetImpliedClusterAllocExitFtraceEvent_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/6, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  Ext4GetImpliedClusterAllocExitFtraceEvent_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit Ext4GetImpliedClusterAllocExitFtraceEvent_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit Ext4GetImpliedClusterAllocExitFtraceEvent_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_dev() const { return at<1>().valid(); }
-  uint64_t dev() const { return at<1>().as_uint64(); }
-  bool has_flags() const { return at<2>().valid(); }
-  uint32_t flags() const { return at<2>().as_uint32(); }
-  bool has_lblk() const { return at<3>().valid(); }
-  uint32_t lblk() const { return at<3>().as_uint32(); }
-  bool has_pblk() const { return at<4>().valid(); }
-  uint64_t pblk() const { return at<4>().as_uint64(); }
-  bool has_len() const { return at<5>().valid(); }
-  uint32_t len() const { return at<5>().as_uint32(); }
-  bool has_ret() const { return at<6>().valid(); }
-  int32_t ret() const { return at<6>().as_int32(); }
-};
-
-class Ext4GetImpliedClusterAllocExitFtraceEvent : public ::protozero::Message {
- public:
-  using Decoder = Ext4GetImpliedClusterAllocExitFtraceEvent_Decoder;
-  enum : int32_t {
-    kDevFieldNumber = 1,
-    kFlagsFieldNumber = 2,
-    kLblkFieldNumber = 3,
-    kPblkFieldNumber = 4,
-    kLenFieldNumber = 5,
-    kRetFieldNumber = 6,
-  };
-
-  using FieldMetadata_Dev =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      Ext4GetImpliedClusterAllocExitFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Dev kDev() { return {}; }
-  void set_dev(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Dev::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Flags =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      Ext4GetImpliedClusterAllocExitFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Flags kFlags() { return {}; }
-  void set_flags(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Flags::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Lblk =
-    ::protozero::proto_utils::FieldMetadata<
-      3,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      Ext4GetImpliedClusterAllocExitFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Lblk kLblk() { return {}; }
-  void set_lblk(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Lblk::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Pblk =
-    ::protozero::proto_utils::FieldMetadata<
-      4,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      Ext4GetImpliedClusterAllocExitFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Pblk kPblk() { return {}; }
-  void set_pblk(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Pblk::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Len =
-    ::protozero::proto_utils::FieldMetadata<
-      5,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      Ext4GetImpliedClusterAllocExitFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Len kLen() { return {}; }
-  void set_len(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Len::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Ret =
-    ::protozero::proto_utils::FieldMetadata<
-      6,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt32,
-      int32_t,
-      Ext4GetImpliedClusterAllocExitFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Ret kRet() { return {}; }
-  void set_ret(int32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Ret::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt32>
-        ::Append(*this, field_id, value);
-  }
-};
-
-class Ext4FreeInodeFtraceEvent_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/6, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  Ext4FreeInodeFtraceEvent_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit Ext4FreeInodeFtraceEvent_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit Ext4FreeInodeFtraceEvent_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_dev() const { return at<1>().valid(); }
-  uint64_t dev() const { return at<1>().as_uint64(); }
-  bool has_ino() const { return at<2>().valid(); }
-  uint64_t ino() const { return at<2>().as_uint64(); }
-  bool has_uid() const { return at<3>().valid(); }
-  uint32_t uid() const { return at<3>().as_uint32(); }
-  bool has_gid() const { return at<4>().valid(); }
-  uint32_t gid() const { return at<4>().as_uint32(); }
-  bool has_blocks() const { return at<5>().valid(); }
-  uint64_t blocks() const { return at<5>().as_uint64(); }
-  bool has_mode() const { return at<6>().valid(); }
-  uint32_t mode() const { return at<6>().as_uint32(); }
-};
-
-class Ext4FreeInodeFtraceEvent : public ::protozero::Message {
- public:
-  using Decoder = Ext4FreeInodeFtraceEvent_Decoder;
-  enum : int32_t {
-    kDevFieldNumber = 1,
-    kInoFieldNumber = 2,
-    kUidFieldNumber = 3,
-    kGidFieldNumber = 4,
-    kBlocksFieldNumber = 5,
-    kModeFieldNumber = 6,
-  };
-
-  using FieldMetadata_Dev =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      Ext4FreeInodeFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Dev kDev() { return {}; }
-  void set_dev(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Dev::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Ino =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      Ext4FreeInodeFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Ino kIno() { return {}; }
-  void set_ino(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Ino::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Uid =
-    ::protozero::proto_utils::FieldMetadata<
-      3,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      Ext4FreeInodeFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Uid kUid() { return {}; }
-  void set_uid(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Uid::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Gid =
-    ::protozero::proto_utils::FieldMetadata<
-      4,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      Ext4FreeInodeFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Gid kGid() { return {}; }
-  void set_gid(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Gid::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Blocks =
-    ::protozero::proto_utils::FieldMetadata<
-      5,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      Ext4FreeInodeFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Blocks kBlocks() { return {}; }
-  void set_blocks(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Blocks::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Mode =
-    ::protozero::proto_utils::FieldMetadata<
-      6,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      Ext4FreeInodeFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Mode kMode() { return {}; }
-  void set_mode(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Mode::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-};
-
-class Ext4FreeBlocksFtraceEvent_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/6, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  Ext4FreeBlocksFtraceEvent_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit Ext4FreeBlocksFtraceEvent_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit Ext4FreeBlocksFtraceEvent_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_dev() const { return at<1>().valid(); }
-  uint64_t dev() const { return at<1>().as_uint64(); }
-  bool has_ino() const { return at<2>().valid(); }
-  uint64_t ino() const { return at<2>().as_uint64(); }
-  bool has_block() const { return at<3>().valid(); }
-  uint64_t block() const { return at<3>().as_uint64(); }
-  bool has_count() const { return at<4>().valid(); }
-  uint64_t count() const { return at<4>().as_uint64(); }
-  bool has_flags() const { return at<5>().valid(); }
-  int32_t flags() const { return at<5>().as_int32(); }
-  bool has_mode() const { return at<6>().valid(); }
-  uint32_t mode() const { return at<6>().as_uint32(); }
-};
-
-class Ext4FreeBlocksFtraceEvent : public ::protozero::Message {
- public:
-  using Decoder = Ext4FreeBlocksFtraceEvent_Decoder;
-  enum : int32_t {
-    kDevFieldNumber = 1,
-    kInoFieldNumber = 2,
-    kBlockFieldNumber = 3,
-    kCountFieldNumber = 4,
-    kFlagsFieldNumber = 5,
-    kModeFieldNumber = 6,
-  };
-
-  using FieldMetadata_Dev =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      Ext4FreeBlocksFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Dev kDev() { return {}; }
-  void set_dev(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Dev::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Ino =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      Ext4FreeBlocksFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Ino kIno() { return {}; }
-  void set_ino(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Ino::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Block =
-    ::protozero::proto_utils::FieldMetadata<
-      3,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      Ext4FreeBlocksFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Block kBlock() { return {}; }
-  void set_block(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Block::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Count =
-    ::protozero::proto_utils::FieldMetadata<
-      4,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      Ext4FreeBlocksFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Count kCount() { return {}; }
-  void set_count(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Count::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Flags =
-    ::protozero::proto_utils::FieldMetadata<
-      5,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt32,
-      int32_t,
-      Ext4FreeBlocksFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Flags kFlags() { return {}; }
-  void set_flags(int32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Flags::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Mode =
-    ::protozero::proto_utils::FieldMetadata<
-      6,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      Ext4FreeBlocksFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Mode kMode() { return {}; }
-  void set_mode(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Mode::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-};
-
-class Ext4ForgetFtraceEvent_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/5, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  Ext4ForgetFtraceEvent_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit Ext4ForgetFtraceEvent_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit Ext4ForgetFtraceEvent_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_dev() const { return at<1>().valid(); }
-  uint64_t dev() const { return at<1>().as_uint64(); }
-  bool has_ino() const { return at<2>().valid(); }
-  uint64_t ino() const { return at<2>().as_uint64(); }
-  bool has_block() const { return at<3>().valid(); }
-  uint64_t block() const { return at<3>().as_uint64(); }
-  bool has_is_metadata() const { return at<4>().valid(); }
-  int32_t is_metadata() const { return at<4>().as_int32(); }
-  bool has_mode() const { return at<5>().valid(); }
-  uint32_t mode() const { return at<5>().as_uint32(); }
-};
-
-class Ext4ForgetFtraceEvent : public ::protozero::Message {
- public:
-  using Decoder = Ext4ForgetFtraceEvent_Decoder;
-  enum : int32_t {
-    kDevFieldNumber = 1,
-    kInoFieldNumber = 2,
-    kBlockFieldNumber = 3,
-    kIsMetadataFieldNumber = 4,
-    kModeFieldNumber = 5,
-  };
-
-  using FieldMetadata_Dev =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      Ext4ForgetFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Dev kDev() { return {}; }
-  void set_dev(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Dev::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Ino =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      Ext4ForgetFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Ino kIno() { return {}; }
-  void set_ino(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Ino::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Block =
-    ::protozero::proto_utils::FieldMetadata<
-      3,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      Ext4ForgetFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Block kBlock() { return {}; }
-  void set_block(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Block::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_IsMetadata =
-    ::protozero::proto_utils::FieldMetadata<
-      4,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt32,
-      int32_t,
-      Ext4ForgetFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_IsMetadata kIsMetadata() { return {}; }
-  void set_is_metadata(int32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_IsMetadata::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Mode =
-    ::protozero::proto_utils::FieldMetadata<
-      5,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      Ext4ForgetFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Mode kMode() { return {}; }
-  void set_mode(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Mode::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-};
-
-class Ext4FindDelallocRangeFtraceEvent_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/7, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  Ext4FindDelallocRangeFtraceEvent_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit Ext4FindDelallocRangeFtraceEvent_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit Ext4FindDelallocRangeFtraceEvent_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_dev() const { return at<1>().valid(); }
-  uint64_t dev() const { return at<1>().as_uint64(); }
-  bool has_ino() const { return at<2>().valid(); }
-  uint64_t ino() const { return at<2>().as_uint64(); }
-  bool has_from() const { return at<3>().valid(); }
-  uint32_t from() const { return at<3>().as_uint32(); }
-  bool has_to() const { return at<4>().valid(); }
-  uint32_t to() const { return at<4>().as_uint32(); }
-  bool has_reverse() const { return at<5>().valid(); }
-  int32_t reverse() const { return at<5>().as_int32(); }
-  bool has_found() const { return at<6>().valid(); }
-  int32_t found() const { return at<6>().as_int32(); }
-  bool has_found_blk() const { return at<7>().valid(); }
-  uint32_t found_blk() const { return at<7>().as_uint32(); }
-};
-
-class Ext4FindDelallocRangeFtraceEvent : public ::protozero::Message {
- public:
-  using Decoder = Ext4FindDelallocRangeFtraceEvent_Decoder;
-  enum : int32_t {
-    kDevFieldNumber = 1,
-    kInoFieldNumber = 2,
-    kFromFieldNumber = 3,
-    kToFieldNumber = 4,
-    kReverseFieldNumber = 5,
-    kFoundFieldNumber = 6,
-    kFoundBlkFieldNumber = 7,
-  };
-
-  using FieldMetadata_Dev =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      Ext4FindDelallocRangeFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Dev kDev() { return {}; }
-  void set_dev(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Dev::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Ino =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      Ext4FindDelallocRangeFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Ino kIno() { return {}; }
-  void set_ino(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Ino::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_From =
-    ::protozero::proto_utils::FieldMetadata<
-      3,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      Ext4FindDelallocRangeFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_From kFrom() { return {}; }
-  void set_from(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_From::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_To =
-    ::protozero::proto_utils::FieldMetadata<
-      4,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      Ext4FindDelallocRangeFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_To kTo() { return {}; }
-  void set_to(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_To::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Reverse =
-    ::protozero::proto_utils::FieldMetadata<
-      5,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt32,
-      int32_t,
-      Ext4FindDelallocRangeFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Reverse kReverse() { return {}; }
-  void set_reverse(int32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Reverse::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Found =
-    ::protozero::proto_utils::FieldMetadata<
-      6,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt32,
-      int32_t,
-      Ext4FindDelallocRangeFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Found kFound() { return {}; }
-  void set_found(int32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Found::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_FoundBlk =
-    ::protozero::proto_utils::FieldMetadata<
-      7,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      Ext4FindDelallocRangeFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_FoundBlk kFoundBlk() { return {}; }
-  void set_found_blk(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_FoundBlk::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-};
-
-class Ext4FallocateExitFtraceEvent_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/5, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  Ext4FallocateExitFtraceEvent_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit Ext4FallocateExitFtraceEvent_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit Ext4FallocateExitFtraceEvent_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_dev() const { return at<1>().valid(); }
-  uint64_t dev() const { return at<1>().as_uint64(); }
-  bool has_ino() const { return at<2>().valid(); }
-  uint64_t ino() const { return at<2>().as_uint64(); }
-  bool has_pos() const { return at<3>().valid(); }
-  int64_t pos() const { return at<3>().as_int64(); }
-  bool has_blocks() const { return at<4>().valid(); }
-  uint32_t blocks() const { return at<4>().as_uint32(); }
-  bool has_ret() const { return at<5>().valid(); }
-  int32_t ret() const { return at<5>().as_int32(); }
-};
-
-class Ext4FallocateExitFtraceEvent : public ::protozero::Message {
- public:
-  using Decoder = Ext4FallocateExitFtraceEvent_Decoder;
-  enum : int32_t {
-    kDevFieldNumber = 1,
-    kInoFieldNumber = 2,
-    kPosFieldNumber = 3,
-    kBlocksFieldNumber = 4,
-    kRetFieldNumber = 5,
-  };
-
-  using FieldMetadata_Dev =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      Ext4FallocateExitFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Dev kDev() { return {}; }
-  void set_dev(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Dev::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Ino =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      Ext4FallocateExitFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Ino kIno() { return {}; }
-  void set_ino(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Ino::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Pos =
-    ::protozero::proto_utils::FieldMetadata<
-      3,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt64,
-      int64_t,
-      Ext4FallocateExitFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Pos kPos() { return {}; }
-  void set_pos(int64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Pos::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Blocks =
-    ::protozero::proto_utils::FieldMetadata<
-      4,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      Ext4FallocateExitFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Blocks kBlocks() { return {}; }
-  void set_blocks(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Blocks::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Ret =
-    ::protozero::proto_utils::FieldMetadata<
-      5,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt32,
-      int32_t,
-      Ext4FallocateExitFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Ret kRet() { return {}; }
-  void set_ret(int32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Ret::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt32>
-        ::Append(*this, field_id, value);
-  }
-};
-
-class Ext4FallocateEnterFtraceEvent_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/6, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  Ext4FallocateEnterFtraceEvent_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit Ext4FallocateEnterFtraceEvent_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit Ext4FallocateEnterFtraceEvent_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_dev() const { return at<1>().valid(); }
-  uint64_t dev() const { return at<1>().as_uint64(); }
-  bool has_ino() const { return at<2>().valid(); }
-  uint64_t ino() const { return at<2>().as_uint64(); }
-  bool has_offset() const { return at<3>().valid(); }
-  int64_t offset() const { return at<3>().as_int64(); }
-  bool has_len() const { return at<4>().valid(); }
-  int64_t len() const { return at<4>().as_int64(); }
-  bool has_mode() const { return at<5>().valid(); }
-  int32_t mode() const { return at<5>().as_int32(); }
-  bool has_pos() const { return at<6>().valid(); }
-  int64_t pos() const { return at<6>().as_int64(); }
-};
-
-class Ext4FallocateEnterFtraceEvent : public ::protozero::Message {
- public:
-  using Decoder = Ext4FallocateEnterFtraceEvent_Decoder;
-  enum : int32_t {
-    kDevFieldNumber = 1,
-    kInoFieldNumber = 2,
-    kOffsetFieldNumber = 3,
-    kLenFieldNumber = 4,
-    kModeFieldNumber = 5,
-    kPosFieldNumber = 6,
-  };
-
-  using FieldMetadata_Dev =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      Ext4FallocateEnterFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Dev kDev() { return {}; }
-  void set_dev(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Dev::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Ino =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      Ext4FallocateEnterFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Ino kIno() { return {}; }
-  void set_ino(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Ino::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Offset =
-    ::protozero::proto_utils::FieldMetadata<
-      3,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt64,
-      int64_t,
-      Ext4FallocateEnterFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Offset kOffset() { return {}; }
-  void set_offset(int64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Offset::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Len =
-    ::protozero::proto_utils::FieldMetadata<
-      4,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt64,
-      int64_t,
-      Ext4FallocateEnterFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Len kLen() { return {}; }
-  void set_len(int64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Len::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Mode =
-    ::protozero::proto_utils::FieldMetadata<
-      5,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt32,
-      int32_t,
-      Ext4FallocateEnterFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Mode kMode() { return {}; }
-  void set_mode(int32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Mode::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Pos =
-    ::protozero::proto_utils::FieldMetadata<
-      6,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt64,
-      int64_t,
-      Ext4FallocateEnterFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Pos kPos() { return {}; }
-  void set_pos(int64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Pos::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt64>
-        ::Append(*this, field_id, value);
-  }
-};
-
-class Ext4ExtShowExtentFtraceEvent_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/5, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  Ext4ExtShowExtentFtraceEvent_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit Ext4ExtShowExtentFtraceEvent_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit Ext4ExtShowExtentFtraceEvent_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_dev() const { return at<1>().valid(); }
-  uint64_t dev() const { return at<1>().as_uint64(); }
-  bool has_ino() const { return at<2>().valid(); }
-  uint64_t ino() const { return at<2>().as_uint64(); }
-  bool has_pblk() const { return at<3>().valid(); }
-  uint64_t pblk() const { return at<3>().as_uint64(); }
-  bool has_lblk() const { return at<4>().valid(); }
-  uint32_t lblk() const { return at<4>().as_uint32(); }
-  bool has_len() const { return at<5>().valid(); }
-  uint32_t len() const { return at<5>().as_uint32(); }
-};
-
-class Ext4ExtShowExtentFtraceEvent : public ::protozero::Message {
- public:
-  using Decoder = Ext4ExtShowExtentFtraceEvent_Decoder;
-  enum : int32_t {
-    kDevFieldNumber = 1,
-    kInoFieldNumber = 2,
-    kPblkFieldNumber = 3,
-    kLblkFieldNumber = 4,
-    kLenFieldNumber = 5,
-  };
-
-  using FieldMetadata_Dev =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      Ext4ExtShowExtentFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Dev kDev() { return {}; }
-  void set_dev(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Dev::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Ino =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      Ext4ExtShowExtentFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Ino kIno() { return {}; }
-  void set_ino(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Ino::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Pblk =
-    ::protozero::proto_utils::FieldMetadata<
-      3,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      Ext4ExtShowExtentFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Pblk kPblk() { return {}; }
-  void set_pblk(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Pblk::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Lblk =
-    ::protozero::proto_utils::FieldMetadata<
-      4,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      Ext4ExtShowExtentFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Lblk kLblk() { return {}; }
-  void set_lblk(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Lblk::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Len =
-    ::protozero::proto_utils::FieldMetadata<
-      5,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      Ext4ExtShowExtentFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Len kLen() { return {}; }
-  void set_len(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Len::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-};
-
-class Ext4ExtRmLeafFtraceEvent_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/7, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  Ext4ExtRmLeafFtraceEvent_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit Ext4ExtRmLeafFtraceEvent_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit Ext4ExtRmLeafFtraceEvent_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_dev() const { return at<1>().valid(); }
-  uint64_t dev() const { return at<1>().as_uint64(); }
-  bool has_ino() const { return at<2>().valid(); }
-  uint64_t ino() const { return at<2>().as_uint64(); }
-  bool has_partial() const { return at<3>().valid(); }
-  int64_t partial() const { return at<3>().as_int64(); }
-  bool has_start() const { return at<4>().valid(); }
-  uint32_t start() const { return at<4>().as_uint32(); }
-  bool has_ee_lblk() const { return at<5>().valid(); }
-  uint32_t ee_lblk() const { return at<5>().as_uint32(); }
-  bool has_ee_pblk() const { return at<6>().valid(); }
-  uint64_t ee_pblk() const { return at<6>().as_uint64(); }
-  bool has_ee_len() const { return at<7>().valid(); }
-  int32_t ee_len() const { return at<7>().as_int32(); }
-};
-
-class Ext4ExtRmLeafFtraceEvent : public ::protozero::Message {
- public:
-  using Decoder = Ext4ExtRmLeafFtraceEvent_Decoder;
-  enum : int32_t {
-    kDevFieldNumber = 1,
-    kInoFieldNumber = 2,
-    kPartialFieldNumber = 3,
-    kStartFieldNumber = 4,
-    kEeLblkFieldNumber = 5,
-    kEePblkFieldNumber = 6,
-    kEeLenFieldNumber = 7,
-  };
-
-  using FieldMetadata_Dev =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      Ext4ExtRmLeafFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Dev kDev() { return {}; }
-  void set_dev(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Dev::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Ino =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      Ext4ExtRmLeafFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Ino kIno() { return {}; }
-  void set_ino(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Ino::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Partial =
-    ::protozero::proto_utils::FieldMetadata<
-      3,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt64,
-      int64_t,
-      Ext4ExtRmLeafFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Partial kPartial() { return {}; }
-  void set_partial(int64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Partial::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Start =
-    ::protozero::proto_utils::FieldMetadata<
-      4,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      Ext4ExtRmLeafFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Start kStart() { return {}; }
-  void set_start(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Start::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_EeLblk =
-    ::protozero::proto_utils::FieldMetadata<
-      5,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      Ext4ExtRmLeafFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_EeLblk kEeLblk() { return {}; }
-  void set_ee_lblk(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_EeLblk::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_EePblk =
-    ::protozero::proto_utils::FieldMetadata<
-      6,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      Ext4ExtRmLeafFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_EePblk kEePblk() { return {}; }
-  void set_ee_pblk(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_EePblk::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_EeLen =
-    ::protozero::proto_utils::FieldMetadata<
-      7,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt32,
-      int32_t,
-      Ext4ExtRmLeafFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_EeLen kEeLen() { return {}; }
-  void set_ee_len(int32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_EeLen::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt32>
-        ::Append(*this, field_id, value);
-  }
-};
-
-class Ext4ExtRmIdxFtraceEvent_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/3, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  Ext4ExtRmIdxFtraceEvent_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit Ext4ExtRmIdxFtraceEvent_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit Ext4ExtRmIdxFtraceEvent_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_dev() const { return at<1>().valid(); }
-  uint64_t dev() const { return at<1>().as_uint64(); }
-  bool has_ino() const { return at<2>().valid(); }
-  uint64_t ino() const { return at<2>().as_uint64(); }
-  bool has_pblk() const { return at<3>().valid(); }
-  uint64_t pblk() const { return at<3>().as_uint64(); }
-};
-
-class Ext4ExtRmIdxFtraceEvent : public ::protozero::Message {
- public:
-  using Decoder = Ext4ExtRmIdxFtraceEvent_Decoder;
-  enum : int32_t {
-    kDevFieldNumber = 1,
-    kInoFieldNumber = 2,
-    kPblkFieldNumber = 3,
-  };
-
-  using FieldMetadata_Dev =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      Ext4ExtRmIdxFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Dev kDev() { return {}; }
-  void set_dev(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Dev::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Ino =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      Ext4ExtRmIdxFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Ino kIno() { return {}; }
-  void set_ino(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Ino::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Pblk =
-    ::protozero::proto_utils::FieldMetadata<
-      3,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      Ext4ExtRmIdxFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Pblk kPblk() { return {}; }
-  void set_pblk(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Pblk::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-};
-
-class Ext4ExtRemoveSpaceDoneFtraceEvent_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/7, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  Ext4ExtRemoveSpaceDoneFtraceEvent_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit Ext4ExtRemoveSpaceDoneFtraceEvent_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit Ext4ExtRemoveSpaceDoneFtraceEvent_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_dev() const { return at<1>().valid(); }
-  uint64_t dev() const { return at<1>().as_uint64(); }
-  bool has_ino() const { return at<2>().valid(); }
-  uint64_t ino() const { return at<2>().as_uint64(); }
-  bool has_start() const { return at<3>().valid(); }
-  uint32_t start() const { return at<3>().as_uint32(); }
-  bool has_end() const { return at<4>().valid(); }
-  uint32_t end() const { return at<4>().as_uint32(); }
-  bool has_depth() const { return at<5>().valid(); }
-  int32_t depth() const { return at<5>().as_int32(); }
-  bool has_partial() const { return at<6>().valid(); }
-  int64_t partial() const { return at<6>().as_int64(); }
-  bool has_eh_entries() const { return at<7>().valid(); }
-  uint32_t eh_entries() const { return at<7>().as_uint32(); }
-};
-
-class Ext4ExtRemoveSpaceDoneFtraceEvent : public ::protozero::Message {
- public:
-  using Decoder = Ext4ExtRemoveSpaceDoneFtraceEvent_Decoder;
-  enum : int32_t {
-    kDevFieldNumber = 1,
-    kInoFieldNumber = 2,
-    kStartFieldNumber = 3,
-    kEndFieldNumber = 4,
-    kDepthFieldNumber = 5,
-    kPartialFieldNumber = 6,
-    kEhEntriesFieldNumber = 7,
-  };
-
-  using FieldMetadata_Dev =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      Ext4ExtRemoveSpaceDoneFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Dev kDev() { return {}; }
-  void set_dev(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Dev::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Ino =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      Ext4ExtRemoveSpaceDoneFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Ino kIno() { return {}; }
-  void set_ino(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Ino::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Start =
-    ::protozero::proto_utils::FieldMetadata<
-      3,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      Ext4ExtRemoveSpaceDoneFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Start kStart() { return {}; }
-  void set_start(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Start::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_End =
-    ::protozero::proto_utils::FieldMetadata<
-      4,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      Ext4ExtRemoveSpaceDoneFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_End kEnd() { return {}; }
-  void set_end(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_End::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Depth =
-    ::protozero::proto_utils::FieldMetadata<
-      5,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt32,
-      int32_t,
-      Ext4ExtRemoveSpaceDoneFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Depth kDepth() { return {}; }
-  void set_depth(int32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Depth::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Partial =
-    ::protozero::proto_utils::FieldMetadata<
-      6,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt64,
-      int64_t,
-      Ext4ExtRemoveSpaceDoneFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Partial kPartial() { return {}; }
-  void set_partial(int64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Partial::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_EhEntries =
-    ::protozero::proto_utils::FieldMetadata<
-      7,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      Ext4ExtRemoveSpaceDoneFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_EhEntries kEhEntries() { return {}; }
-  void set_eh_entries(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_EhEntries::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-};
-
-class Ext4ExtRemoveSpaceFtraceEvent_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/5, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  Ext4ExtRemoveSpaceFtraceEvent_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit Ext4ExtRemoveSpaceFtraceEvent_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit Ext4ExtRemoveSpaceFtraceEvent_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_dev() const { return at<1>().valid(); }
-  uint64_t dev() const { return at<1>().as_uint64(); }
-  bool has_ino() const { return at<2>().valid(); }
-  uint64_t ino() const { return at<2>().as_uint64(); }
-  bool has_start() const { return at<3>().valid(); }
-  uint32_t start() const { return at<3>().as_uint32(); }
-  bool has_end() const { return at<4>().valid(); }
-  uint32_t end() const { return at<4>().as_uint32(); }
-  bool has_depth() const { return at<5>().valid(); }
-  int32_t depth() const { return at<5>().as_int32(); }
-};
-
-class Ext4ExtRemoveSpaceFtraceEvent : public ::protozero::Message {
- public:
-  using Decoder = Ext4ExtRemoveSpaceFtraceEvent_Decoder;
-  enum : int32_t {
-    kDevFieldNumber = 1,
-    kInoFieldNumber = 2,
-    kStartFieldNumber = 3,
-    kEndFieldNumber = 4,
-    kDepthFieldNumber = 5,
-  };
-
-  using FieldMetadata_Dev =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      Ext4ExtRemoveSpaceFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Dev kDev() { return {}; }
-  void set_dev(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Dev::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Ino =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      Ext4ExtRemoveSpaceFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Ino kIno() { return {}; }
-  void set_ino(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Ino::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Start =
-    ::protozero::proto_utils::FieldMetadata<
-      3,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      Ext4ExtRemoveSpaceFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Start kStart() { return {}; }
-  void set_start(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Start::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_End =
-    ::protozero::proto_utils::FieldMetadata<
-      4,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      Ext4ExtRemoveSpaceFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_End kEnd() { return {}; }
-  void set_end(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_End::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Depth =
-    ::protozero::proto_utils::FieldMetadata<
-      5,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt32,
-      int32_t,
-      Ext4ExtRemoveSpaceFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Depth kDepth() { return {}; }
-  void set_depth(int32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Depth::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt32>
-        ::Append(*this, field_id, value);
-  }
-};
-
-class Ext4ExtPutInCacheFtraceEvent_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/5, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  Ext4ExtPutInCacheFtraceEvent_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit Ext4ExtPutInCacheFtraceEvent_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit Ext4ExtPutInCacheFtraceEvent_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_dev() const { return at<1>().valid(); }
-  uint64_t dev() const { return at<1>().as_uint64(); }
-  bool has_ino() const { return at<2>().valid(); }
-  uint64_t ino() const { return at<2>().as_uint64(); }
-  bool has_lblk() const { return at<3>().valid(); }
-  uint32_t lblk() const { return at<3>().as_uint32(); }
-  bool has_len() const { return at<4>().valid(); }
-  uint32_t len() const { return at<4>().as_uint32(); }
-  bool has_start() const { return at<5>().valid(); }
-  uint64_t start() const { return at<5>().as_uint64(); }
-};
-
-class Ext4ExtPutInCacheFtraceEvent : public ::protozero::Message {
- public:
-  using Decoder = Ext4ExtPutInCacheFtraceEvent_Decoder;
-  enum : int32_t {
-    kDevFieldNumber = 1,
-    kInoFieldNumber = 2,
-    kLblkFieldNumber = 3,
-    kLenFieldNumber = 4,
-    kStartFieldNumber = 5,
-  };
-
-  using FieldMetadata_Dev =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      Ext4ExtPutInCacheFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Dev kDev() { return {}; }
-  void set_dev(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Dev::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Ino =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      Ext4ExtPutInCacheFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Ino kIno() { return {}; }
-  void set_ino(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Ino::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Lblk =
-    ::protozero::proto_utils::FieldMetadata<
-      3,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      Ext4ExtPutInCacheFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Lblk kLblk() { return {}; }
-  void set_lblk(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Lblk::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Len =
-    ::protozero::proto_utils::FieldMetadata<
-      4,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      Ext4ExtPutInCacheFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Len kLen() { return {}; }
-  void set_len(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Len::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Start =
-    ::protozero::proto_utils::FieldMetadata<
-      5,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      Ext4ExtPutInCacheFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Start kStart() { return {}; }
-  void set_start(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Start::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-};
-
-class Ext4ExtMapBlocksExitFtraceEvent_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/8, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  Ext4ExtMapBlocksExitFtraceEvent_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit Ext4ExtMapBlocksExitFtraceEvent_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit Ext4ExtMapBlocksExitFtraceEvent_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_dev() const { return at<1>().valid(); }
-  uint64_t dev() const { return at<1>().as_uint64(); }
-  bool has_ino() const { return at<2>().valid(); }
-  uint64_t ino() const { return at<2>().as_uint64(); }
-  bool has_flags() const { return at<3>().valid(); }
-  uint32_t flags() const { return at<3>().as_uint32(); }
-  bool has_pblk() const { return at<4>().valid(); }
-  uint64_t pblk() const { return at<4>().as_uint64(); }
-  bool has_lblk() const { return at<5>().valid(); }
-  uint32_t lblk() const { return at<5>().as_uint32(); }
-  bool has_len() const { return at<6>().valid(); }
-  uint32_t len() const { return at<6>().as_uint32(); }
-  bool has_mflags() const { return at<7>().valid(); }
-  uint32_t mflags() const { return at<7>().as_uint32(); }
-  bool has_ret() const { return at<8>().valid(); }
-  int32_t ret() const { return at<8>().as_int32(); }
-};
-
-class Ext4ExtMapBlocksExitFtraceEvent : public ::protozero::Message {
- public:
-  using Decoder = Ext4ExtMapBlocksExitFtraceEvent_Decoder;
-  enum : int32_t {
-    kDevFieldNumber = 1,
-    kInoFieldNumber = 2,
-    kFlagsFieldNumber = 3,
-    kPblkFieldNumber = 4,
-    kLblkFieldNumber = 5,
-    kLenFieldNumber = 6,
-    kMflagsFieldNumber = 7,
-    kRetFieldNumber = 8,
-  };
-
-  using FieldMetadata_Dev =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      Ext4ExtMapBlocksExitFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Dev kDev() { return {}; }
-  void set_dev(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Dev::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Ino =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      Ext4ExtMapBlocksExitFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Ino kIno() { return {}; }
-  void set_ino(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Ino::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Flags =
-    ::protozero::proto_utils::FieldMetadata<
-      3,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      Ext4ExtMapBlocksExitFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Flags kFlags() { return {}; }
-  void set_flags(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Flags::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Pblk =
-    ::protozero::proto_utils::FieldMetadata<
-      4,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      Ext4ExtMapBlocksExitFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Pblk kPblk() { return {}; }
-  void set_pblk(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Pblk::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Lblk =
-    ::protozero::proto_utils::FieldMetadata<
-      5,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      Ext4ExtMapBlocksExitFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Lblk kLblk() { return {}; }
-  void set_lblk(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Lblk::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Len =
-    ::protozero::proto_utils::FieldMetadata<
-      6,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      Ext4ExtMapBlocksExitFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Len kLen() { return {}; }
-  void set_len(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Len::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Mflags =
-    ::protozero::proto_utils::FieldMetadata<
-      7,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      Ext4ExtMapBlocksExitFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Mflags kMflags() { return {}; }
-  void set_mflags(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Mflags::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Ret =
-    ::protozero::proto_utils::FieldMetadata<
-      8,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt32,
-      int32_t,
-      Ext4ExtMapBlocksExitFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Ret kRet() { return {}; }
-  void set_ret(int32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Ret::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt32>
-        ::Append(*this, field_id, value);
-  }
-};
-
-class Ext4ExtMapBlocksEnterFtraceEvent_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/5, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  Ext4ExtMapBlocksEnterFtraceEvent_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit Ext4ExtMapBlocksEnterFtraceEvent_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit Ext4ExtMapBlocksEnterFtraceEvent_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_dev() const { return at<1>().valid(); }
-  uint64_t dev() const { return at<1>().as_uint64(); }
-  bool has_ino() const { return at<2>().valid(); }
-  uint64_t ino() const { return at<2>().as_uint64(); }
-  bool has_lblk() const { return at<3>().valid(); }
-  uint32_t lblk() const { return at<3>().as_uint32(); }
-  bool has_len() const { return at<4>().valid(); }
-  uint32_t len() const { return at<4>().as_uint32(); }
-  bool has_flags() const { return at<5>().valid(); }
-  uint32_t flags() const { return at<5>().as_uint32(); }
-};
-
-class Ext4ExtMapBlocksEnterFtraceEvent : public ::protozero::Message {
- public:
-  using Decoder = Ext4ExtMapBlocksEnterFtraceEvent_Decoder;
-  enum : int32_t {
-    kDevFieldNumber = 1,
-    kInoFieldNumber = 2,
-    kLblkFieldNumber = 3,
-    kLenFieldNumber = 4,
-    kFlagsFieldNumber = 5,
-  };
-
-  using FieldMetadata_Dev =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      Ext4ExtMapBlocksEnterFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Dev kDev() { return {}; }
-  void set_dev(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Dev::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Ino =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      Ext4ExtMapBlocksEnterFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Ino kIno() { return {}; }
-  void set_ino(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Ino::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Lblk =
-    ::protozero::proto_utils::FieldMetadata<
-      3,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      Ext4ExtMapBlocksEnterFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Lblk kLblk() { return {}; }
-  void set_lblk(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Lblk::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Len =
-    ::protozero::proto_utils::FieldMetadata<
-      4,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      Ext4ExtMapBlocksEnterFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Len kLen() { return {}; }
-  void set_len(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Len::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Flags =
-    ::protozero::proto_utils::FieldMetadata<
-      5,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      Ext4ExtMapBlocksEnterFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Flags kFlags() { return {}; }
-  void set_flags(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Flags::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-};
-
-class Ext4ExtLoadExtentFtraceEvent_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/4, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  Ext4ExtLoadExtentFtraceEvent_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit Ext4ExtLoadExtentFtraceEvent_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit Ext4ExtLoadExtentFtraceEvent_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_dev() const { return at<1>().valid(); }
-  uint64_t dev() const { return at<1>().as_uint64(); }
-  bool has_ino() const { return at<2>().valid(); }
-  uint64_t ino() const { return at<2>().as_uint64(); }
-  bool has_pblk() const { return at<3>().valid(); }
-  uint64_t pblk() const { return at<3>().as_uint64(); }
-  bool has_lblk() const { return at<4>().valid(); }
-  uint32_t lblk() const { return at<4>().as_uint32(); }
-};
-
-class Ext4ExtLoadExtentFtraceEvent : public ::protozero::Message {
- public:
-  using Decoder = Ext4ExtLoadExtentFtraceEvent_Decoder;
-  enum : int32_t {
-    kDevFieldNumber = 1,
-    kInoFieldNumber = 2,
-    kPblkFieldNumber = 3,
-    kLblkFieldNumber = 4,
-  };
-
-  using FieldMetadata_Dev =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      Ext4ExtLoadExtentFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Dev kDev() { return {}; }
-  void set_dev(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Dev::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Ino =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      Ext4ExtLoadExtentFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Ino kIno() { return {}; }
-  void set_ino(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Ino::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Pblk =
-    ::protozero::proto_utils::FieldMetadata<
-      3,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      Ext4ExtLoadExtentFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Pblk kPblk() { return {}; }
-  void set_pblk(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Pblk::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Lblk =
-    ::protozero::proto_utils::FieldMetadata<
-      4,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      Ext4ExtLoadExtentFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Lblk kLblk() { return {}; }
-  void set_lblk(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Lblk::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-};
-
-class Ext4ExtInCacheFtraceEvent_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/4, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  Ext4ExtInCacheFtraceEvent_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit Ext4ExtInCacheFtraceEvent_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit Ext4ExtInCacheFtraceEvent_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_dev() const { return at<1>().valid(); }
-  uint64_t dev() const { return at<1>().as_uint64(); }
-  bool has_ino() const { return at<2>().valid(); }
-  uint64_t ino() const { return at<2>().as_uint64(); }
-  bool has_lblk() const { return at<3>().valid(); }
-  uint32_t lblk() const { return at<3>().as_uint32(); }
-  bool has_ret() const { return at<4>().valid(); }
-  int32_t ret() const { return at<4>().as_int32(); }
-};
-
-class Ext4ExtInCacheFtraceEvent : public ::protozero::Message {
- public:
-  using Decoder = Ext4ExtInCacheFtraceEvent_Decoder;
-  enum : int32_t {
-    kDevFieldNumber = 1,
-    kInoFieldNumber = 2,
-    kLblkFieldNumber = 3,
-    kRetFieldNumber = 4,
-  };
-
-  using FieldMetadata_Dev =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      Ext4ExtInCacheFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Dev kDev() { return {}; }
-  void set_dev(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Dev::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Ino =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      Ext4ExtInCacheFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Ino kIno() { return {}; }
-  void set_ino(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Ino::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Lblk =
-    ::protozero::proto_utils::FieldMetadata<
-      3,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      Ext4ExtInCacheFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Lblk kLblk() { return {}; }
-  void set_lblk(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Lblk::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Ret =
-    ::protozero::proto_utils::FieldMetadata<
-      4,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt32,
-      int32_t,
-      Ext4ExtInCacheFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Ret kRet() { return {}; }
-  void set_ret(int32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Ret::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt32>
-        ::Append(*this, field_id, value);
-  }
-};
-
-class Ext4ExtHandleUnwrittenExtentsFtraceEvent_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/8, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  Ext4ExtHandleUnwrittenExtentsFtraceEvent_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit Ext4ExtHandleUnwrittenExtentsFtraceEvent_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit Ext4ExtHandleUnwrittenExtentsFtraceEvent_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_dev() const { return at<1>().valid(); }
-  uint64_t dev() const { return at<1>().as_uint64(); }
-  bool has_ino() const { return at<2>().valid(); }
-  uint64_t ino() const { return at<2>().as_uint64(); }
-  bool has_flags() const { return at<3>().valid(); }
-  int32_t flags() const { return at<3>().as_int32(); }
-  bool has_lblk() const { return at<4>().valid(); }
-  uint32_t lblk() const { return at<4>().as_uint32(); }
-  bool has_pblk() const { return at<5>().valid(); }
-  uint64_t pblk() const { return at<5>().as_uint64(); }
-  bool has_len() const { return at<6>().valid(); }
-  uint32_t len() const { return at<6>().as_uint32(); }
-  bool has_allocated() const { return at<7>().valid(); }
-  uint32_t allocated() const { return at<7>().as_uint32(); }
-  bool has_newblk() const { return at<8>().valid(); }
-  uint64_t newblk() const { return at<8>().as_uint64(); }
-};
-
-class Ext4ExtHandleUnwrittenExtentsFtraceEvent : public ::protozero::Message {
- public:
-  using Decoder = Ext4ExtHandleUnwrittenExtentsFtraceEvent_Decoder;
-  enum : int32_t {
-    kDevFieldNumber = 1,
-    kInoFieldNumber = 2,
-    kFlagsFieldNumber = 3,
-    kLblkFieldNumber = 4,
-    kPblkFieldNumber = 5,
-    kLenFieldNumber = 6,
-    kAllocatedFieldNumber = 7,
-    kNewblkFieldNumber = 8,
-  };
-
-  using FieldMetadata_Dev =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      Ext4ExtHandleUnwrittenExtentsFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Dev kDev() { return {}; }
-  void set_dev(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Dev::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Ino =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      Ext4ExtHandleUnwrittenExtentsFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Ino kIno() { return {}; }
-  void set_ino(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Ino::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Flags =
-    ::protozero::proto_utils::FieldMetadata<
-      3,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt32,
-      int32_t,
-      Ext4ExtHandleUnwrittenExtentsFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Flags kFlags() { return {}; }
-  void set_flags(int32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Flags::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Lblk =
-    ::protozero::proto_utils::FieldMetadata<
-      4,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      Ext4ExtHandleUnwrittenExtentsFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Lblk kLblk() { return {}; }
-  void set_lblk(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Lblk::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Pblk =
-    ::protozero::proto_utils::FieldMetadata<
-      5,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      Ext4ExtHandleUnwrittenExtentsFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Pblk kPblk() { return {}; }
-  void set_pblk(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Pblk::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Len =
-    ::protozero::proto_utils::FieldMetadata<
-      6,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      Ext4ExtHandleUnwrittenExtentsFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Len kLen() { return {}; }
-  void set_len(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Len::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Allocated =
-    ::protozero::proto_utils::FieldMetadata<
-      7,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      Ext4ExtHandleUnwrittenExtentsFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Allocated kAllocated() { return {}; }
-  void set_allocated(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Allocated::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Newblk =
-    ::protozero::proto_utils::FieldMetadata<
-      8,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      Ext4ExtHandleUnwrittenExtentsFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Newblk kNewblk() { return {}; }
-  void set_newblk(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Newblk::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-};
-
-class Ext4ExtConvertToInitializedFastpathFtraceEvent_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/10, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  Ext4ExtConvertToInitializedFastpathFtraceEvent_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit Ext4ExtConvertToInitializedFastpathFtraceEvent_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit Ext4ExtConvertToInitializedFastpathFtraceEvent_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_dev() const { return at<1>().valid(); }
-  uint64_t dev() const { return at<1>().as_uint64(); }
-  bool has_ino() const { return at<2>().valid(); }
-  uint64_t ino() const { return at<2>().as_uint64(); }
-  bool has_m_lblk() const { return at<3>().valid(); }
-  uint32_t m_lblk() const { return at<3>().as_uint32(); }
-  bool has_m_len() const { return at<4>().valid(); }
-  uint32_t m_len() const { return at<4>().as_uint32(); }
-  bool has_u_lblk() const { return at<5>().valid(); }
-  uint32_t u_lblk() const { return at<5>().as_uint32(); }
-  bool has_u_len() const { return at<6>().valid(); }
-  uint32_t u_len() const { return at<6>().as_uint32(); }
-  bool has_u_pblk() const { return at<7>().valid(); }
-  uint64_t u_pblk() const { return at<7>().as_uint64(); }
-  bool has_i_lblk() const { return at<8>().valid(); }
-  uint32_t i_lblk() const { return at<8>().as_uint32(); }
-  bool has_i_len() const { return at<9>().valid(); }
-  uint32_t i_len() const { return at<9>().as_uint32(); }
-  bool has_i_pblk() const { return at<10>().valid(); }
-  uint64_t i_pblk() const { return at<10>().as_uint64(); }
-};
-
-class Ext4ExtConvertToInitializedFastpathFtraceEvent : public ::protozero::Message {
- public:
-  using Decoder = Ext4ExtConvertToInitializedFastpathFtraceEvent_Decoder;
-  enum : int32_t {
-    kDevFieldNumber = 1,
-    kInoFieldNumber = 2,
-    kMLblkFieldNumber = 3,
-    kMLenFieldNumber = 4,
-    kULblkFieldNumber = 5,
-    kULenFieldNumber = 6,
-    kUPblkFieldNumber = 7,
-    kILblkFieldNumber = 8,
-    kILenFieldNumber = 9,
-    kIPblkFieldNumber = 10,
-  };
-
-  using FieldMetadata_Dev =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      Ext4ExtConvertToInitializedFastpathFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Dev kDev() { return {}; }
-  void set_dev(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Dev::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Ino =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      Ext4ExtConvertToInitializedFastpathFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Ino kIno() { return {}; }
-  void set_ino(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Ino::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_MLblk =
-    ::protozero::proto_utils::FieldMetadata<
-      3,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      Ext4ExtConvertToInitializedFastpathFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_MLblk kMLblk() { return {}; }
-  void set_m_lblk(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_MLblk::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_MLen =
-    ::protozero::proto_utils::FieldMetadata<
-      4,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      Ext4ExtConvertToInitializedFastpathFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_MLen kMLen() { return {}; }
-  void set_m_len(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_MLen::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_ULblk =
-    ::protozero::proto_utils::FieldMetadata<
-      5,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      Ext4ExtConvertToInitializedFastpathFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_ULblk kULblk() { return {}; }
-  void set_u_lblk(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_ULblk::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_ULen =
-    ::protozero::proto_utils::FieldMetadata<
-      6,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      Ext4ExtConvertToInitializedFastpathFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_ULen kULen() { return {}; }
-  void set_u_len(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_ULen::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_UPblk =
-    ::protozero::proto_utils::FieldMetadata<
-      7,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      Ext4ExtConvertToInitializedFastpathFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_UPblk kUPblk() { return {}; }
-  void set_u_pblk(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_UPblk::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_ILblk =
-    ::protozero::proto_utils::FieldMetadata<
-      8,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      Ext4ExtConvertToInitializedFastpathFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_ILblk kILblk() { return {}; }
-  void set_i_lblk(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_ILblk::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_ILen =
-    ::protozero::proto_utils::FieldMetadata<
-      9,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      Ext4ExtConvertToInitializedFastpathFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_ILen kILen() { return {}; }
-  void set_i_len(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_ILen::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_IPblk =
-    ::protozero::proto_utils::FieldMetadata<
-      10,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      Ext4ExtConvertToInitializedFastpathFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_IPblk kIPblk() { return {}; }
-  void set_i_pblk(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_IPblk::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-};
-
-class Ext4ExtConvertToInitializedEnterFtraceEvent_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/7, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  Ext4ExtConvertToInitializedEnterFtraceEvent_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit Ext4ExtConvertToInitializedEnterFtraceEvent_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit Ext4ExtConvertToInitializedEnterFtraceEvent_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_dev() const { return at<1>().valid(); }
-  uint64_t dev() const { return at<1>().as_uint64(); }
-  bool has_ino() const { return at<2>().valid(); }
-  uint64_t ino() const { return at<2>().as_uint64(); }
-  bool has_m_lblk() const { return at<3>().valid(); }
-  uint32_t m_lblk() const { return at<3>().as_uint32(); }
-  bool has_m_len() const { return at<4>().valid(); }
-  uint32_t m_len() const { return at<4>().as_uint32(); }
-  bool has_u_lblk() const { return at<5>().valid(); }
-  uint32_t u_lblk() const { return at<5>().as_uint32(); }
-  bool has_u_len() const { return at<6>().valid(); }
-  uint32_t u_len() const { return at<6>().as_uint32(); }
-  bool has_u_pblk() const { return at<7>().valid(); }
-  uint64_t u_pblk() const { return at<7>().as_uint64(); }
-};
-
-class Ext4ExtConvertToInitializedEnterFtraceEvent : public ::protozero::Message {
- public:
-  using Decoder = Ext4ExtConvertToInitializedEnterFtraceEvent_Decoder;
-  enum : int32_t {
-    kDevFieldNumber = 1,
-    kInoFieldNumber = 2,
-    kMLblkFieldNumber = 3,
-    kMLenFieldNumber = 4,
-    kULblkFieldNumber = 5,
-    kULenFieldNumber = 6,
-    kUPblkFieldNumber = 7,
-  };
-
-  using FieldMetadata_Dev =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      Ext4ExtConvertToInitializedEnterFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Dev kDev() { return {}; }
-  void set_dev(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Dev::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Ino =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      Ext4ExtConvertToInitializedEnterFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Ino kIno() { return {}; }
-  void set_ino(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Ino::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_MLblk =
-    ::protozero::proto_utils::FieldMetadata<
-      3,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      Ext4ExtConvertToInitializedEnterFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_MLblk kMLblk() { return {}; }
-  void set_m_lblk(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_MLblk::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_MLen =
-    ::protozero::proto_utils::FieldMetadata<
-      4,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      Ext4ExtConvertToInitializedEnterFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_MLen kMLen() { return {}; }
-  void set_m_len(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_MLen::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_ULblk =
-    ::protozero::proto_utils::FieldMetadata<
-      5,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      Ext4ExtConvertToInitializedEnterFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_ULblk kULblk() { return {}; }
-  void set_u_lblk(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_ULblk::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_ULen =
-    ::protozero::proto_utils::FieldMetadata<
-      6,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      Ext4ExtConvertToInitializedEnterFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_ULen kULen() { return {}; }
-  void set_u_len(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_ULen::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_UPblk =
-    ::protozero::proto_utils::FieldMetadata<
-      7,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      Ext4ExtConvertToInitializedEnterFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_UPblk kUPblk() { return {}; }
-  void set_u_pblk(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_UPblk::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-};
-
-class Ext4EvictInodeFtraceEvent_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/3, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  Ext4EvictInodeFtraceEvent_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit Ext4EvictInodeFtraceEvent_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit Ext4EvictInodeFtraceEvent_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_dev() const { return at<1>().valid(); }
-  uint64_t dev() const { return at<1>().as_uint64(); }
-  bool has_ino() const { return at<2>().valid(); }
-  uint64_t ino() const { return at<2>().as_uint64(); }
-  bool has_nlink() const { return at<3>().valid(); }
-  int32_t nlink() const { return at<3>().as_int32(); }
-};
-
-class Ext4EvictInodeFtraceEvent : public ::protozero::Message {
- public:
-  using Decoder = Ext4EvictInodeFtraceEvent_Decoder;
-  enum : int32_t {
-    kDevFieldNumber = 1,
-    kInoFieldNumber = 2,
-    kNlinkFieldNumber = 3,
-  };
-
-  using FieldMetadata_Dev =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      Ext4EvictInodeFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Dev kDev() { return {}; }
-  void set_dev(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Dev::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Ino =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      Ext4EvictInodeFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Ino kIno() { return {}; }
-  void set_ino(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Ino::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Nlink =
-    ::protozero::proto_utils::FieldMetadata<
-      3,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt32,
-      int32_t,
-      Ext4EvictInodeFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Nlink kNlink() { return {}; }
-  void set_nlink(int32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Nlink::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt32>
-        ::Append(*this, field_id, value);
-  }
-};
-
-class Ext4EsShrinkScanExitFtraceEvent_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/3, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  Ext4EsShrinkScanExitFtraceEvent_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit Ext4EsShrinkScanExitFtraceEvent_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit Ext4EsShrinkScanExitFtraceEvent_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_dev() const { return at<1>().valid(); }
-  uint64_t dev() const { return at<1>().as_uint64(); }
-  bool has_nr_shrunk() const { return at<2>().valid(); }
-  int32_t nr_shrunk() const { return at<2>().as_int32(); }
-  bool has_cache_cnt() const { return at<3>().valid(); }
-  int32_t cache_cnt() const { return at<3>().as_int32(); }
-};
-
-class Ext4EsShrinkScanExitFtraceEvent : public ::protozero::Message {
- public:
-  using Decoder = Ext4EsShrinkScanExitFtraceEvent_Decoder;
-  enum : int32_t {
-    kDevFieldNumber = 1,
-    kNrShrunkFieldNumber = 2,
-    kCacheCntFieldNumber = 3,
-  };
-
-  using FieldMetadata_Dev =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      Ext4EsShrinkScanExitFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Dev kDev() { return {}; }
-  void set_dev(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Dev::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_NrShrunk =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt32,
-      int32_t,
-      Ext4EsShrinkScanExitFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_NrShrunk kNrShrunk() { return {}; }
-  void set_nr_shrunk(int32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_NrShrunk::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_CacheCnt =
-    ::protozero::proto_utils::FieldMetadata<
-      3,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt32,
-      int32_t,
-      Ext4EsShrinkScanExitFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_CacheCnt kCacheCnt() { return {}; }
-  void set_cache_cnt(int32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_CacheCnt::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt32>
-        ::Append(*this, field_id, value);
-  }
-};
-
-class Ext4EsShrinkScanEnterFtraceEvent_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/3, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  Ext4EsShrinkScanEnterFtraceEvent_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit Ext4EsShrinkScanEnterFtraceEvent_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit Ext4EsShrinkScanEnterFtraceEvent_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_dev() const { return at<1>().valid(); }
-  uint64_t dev() const { return at<1>().as_uint64(); }
-  bool has_nr_to_scan() const { return at<2>().valid(); }
-  int32_t nr_to_scan() const { return at<2>().as_int32(); }
-  bool has_cache_cnt() const { return at<3>().valid(); }
-  int32_t cache_cnt() const { return at<3>().as_int32(); }
-};
-
-class Ext4EsShrinkScanEnterFtraceEvent : public ::protozero::Message {
- public:
-  using Decoder = Ext4EsShrinkScanEnterFtraceEvent_Decoder;
-  enum : int32_t {
-    kDevFieldNumber = 1,
-    kNrToScanFieldNumber = 2,
-    kCacheCntFieldNumber = 3,
-  };
-
-  using FieldMetadata_Dev =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      Ext4EsShrinkScanEnterFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Dev kDev() { return {}; }
-  void set_dev(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Dev::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_NrToScan =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt32,
-      int32_t,
-      Ext4EsShrinkScanEnterFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_NrToScan kNrToScan() { return {}; }
-  void set_nr_to_scan(int32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_NrToScan::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_CacheCnt =
-    ::protozero::proto_utils::FieldMetadata<
-      3,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt32,
-      int32_t,
-      Ext4EsShrinkScanEnterFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_CacheCnt kCacheCnt() { return {}; }
-  void set_cache_cnt(int32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_CacheCnt::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt32>
-        ::Append(*this, field_id, value);
-  }
-};
-
-class Ext4EsShrinkCountFtraceEvent_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/3, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  Ext4EsShrinkCountFtraceEvent_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit Ext4EsShrinkCountFtraceEvent_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit Ext4EsShrinkCountFtraceEvent_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_dev() const { return at<1>().valid(); }
-  uint64_t dev() const { return at<1>().as_uint64(); }
-  bool has_nr_to_scan() const { return at<2>().valid(); }
-  int32_t nr_to_scan() const { return at<2>().as_int32(); }
-  bool has_cache_cnt() const { return at<3>().valid(); }
-  int32_t cache_cnt() const { return at<3>().as_int32(); }
-};
-
-class Ext4EsShrinkCountFtraceEvent : public ::protozero::Message {
- public:
-  using Decoder = Ext4EsShrinkCountFtraceEvent_Decoder;
-  enum : int32_t {
-    kDevFieldNumber = 1,
-    kNrToScanFieldNumber = 2,
-    kCacheCntFieldNumber = 3,
-  };
-
-  using FieldMetadata_Dev =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      Ext4EsShrinkCountFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Dev kDev() { return {}; }
-  void set_dev(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Dev::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_NrToScan =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt32,
-      int32_t,
-      Ext4EsShrinkCountFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_NrToScan kNrToScan() { return {}; }
-  void set_nr_to_scan(int32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_NrToScan::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_CacheCnt =
-    ::protozero::proto_utils::FieldMetadata<
-      3,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt32,
-      int32_t,
-      Ext4EsShrinkCountFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_CacheCnt kCacheCnt() { return {}; }
-  void set_cache_cnt(int32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_CacheCnt::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt32>
-        ::Append(*this, field_id, value);
-  }
-};
-
-class Ext4EsShrinkFtraceEvent_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/5, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  Ext4EsShrinkFtraceEvent_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit Ext4EsShrinkFtraceEvent_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit Ext4EsShrinkFtraceEvent_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_dev() const { return at<1>().valid(); }
-  uint64_t dev() const { return at<1>().as_uint64(); }
-  bool has_nr_shrunk() const { return at<2>().valid(); }
-  int32_t nr_shrunk() const { return at<2>().as_int32(); }
-  bool has_scan_time() const { return at<3>().valid(); }
-  uint64_t scan_time() const { return at<3>().as_uint64(); }
-  bool has_nr_skipped() const { return at<4>().valid(); }
-  int32_t nr_skipped() const { return at<4>().as_int32(); }
-  bool has_retried() const { return at<5>().valid(); }
-  int32_t retried() const { return at<5>().as_int32(); }
-};
-
-class Ext4EsShrinkFtraceEvent : public ::protozero::Message {
- public:
-  using Decoder = Ext4EsShrinkFtraceEvent_Decoder;
-  enum : int32_t {
-    kDevFieldNumber = 1,
-    kNrShrunkFieldNumber = 2,
-    kScanTimeFieldNumber = 3,
-    kNrSkippedFieldNumber = 4,
-    kRetriedFieldNumber = 5,
-  };
-
-  using FieldMetadata_Dev =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      Ext4EsShrinkFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Dev kDev() { return {}; }
-  void set_dev(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Dev::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_NrShrunk =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt32,
-      int32_t,
-      Ext4EsShrinkFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_NrShrunk kNrShrunk() { return {}; }
-  void set_nr_shrunk(int32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_NrShrunk::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_ScanTime =
-    ::protozero::proto_utils::FieldMetadata<
-      3,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      Ext4EsShrinkFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_ScanTime kScanTime() { return {}; }
-  void set_scan_time(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_ScanTime::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_NrSkipped =
-    ::protozero::proto_utils::FieldMetadata<
-      4,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt32,
-      int32_t,
-      Ext4EsShrinkFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_NrSkipped kNrSkipped() { return {}; }
-  void set_nr_skipped(int32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_NrSkipped::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Retried =
-    ::protozero::proto_utils::FieldMetadata<
-      5,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt32,
-      int32_t,
-      Ext4EsShrinkFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Retried kRetried() { return {}; }
-  void set_retried(int32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Retried::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt32>
-        ::Append(*this, field_id, value);
-  }
-};
-
-class Ext4EsRemoveExtentFtraceEvent_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/4, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  Ext4EsRemoveExtentFtraceEvent_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit Ext4EsRemoveExtentFtraceEvent_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit Ext4EsRemoveExtentFtraceEvent_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_dev() const { return at<1>().valid(); }
-  uint64_t dev() const { return at<1>().as_uint64(); }
-  bool has_ino() const { return at<2>().valid(); }
-  uint64_t ino() const { return at<2>().as_uint64(); }
-  bool has_lblk() const { return at<3>().valid(); }
-  int64_t lblk() const { return at<3>().as_int64(); }
-  bool has_len() const { return at<4>().valid(); }
-  int64_t len() const { return at<4>().as_int64(); }
-};
-
-class Ext4EsRemoveExtentFtraceEvent : public ::protozero::Message {
- public:
-  using Decoder = Ext4EsRemoveExtentFtraceEvent_Decoder;
-  enum : int32_t {
-    kDevFieldNumber = 1,
-    kInoFieldNumber = 2,
-    kLblkFieldNumber = 3,
-    kLenFieldNumber = 4,
-  };
-
-  using FieldMetadata_Dev =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      Ext4EsRemoveExtentFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Dev kDev() { return {}; }
-  void set_dev(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Dev::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Ino =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      Ext4EsRemoveExtentFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Ino kIno() { return {}; }
-  void set_ino(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Ino::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Lblk =
-    ::protozero::proto_utils::FieldMetadata<
-      3,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt64,
-      int64_t,
-      Ext4EsRemoveExtentFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Lblk kLblk() { return {}; }
-  void set_lblk(int64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Lblk::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Len =
-    ::protozero::proto_utils::FieldMetadata<
-      4,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt64,
-      int64_t,
-      Ext4EsRemoveExtentFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Len kLen() { return {}; }
-  void set_len(int64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Len::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt64>
-        ::Append(*this, field_id, value);
-  }
-};
-
-class Ext4EsLookupExtentExitFtraceEvent_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/7, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  Ext4EsLookupExtentExitFtraceEvent_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit Ext4EsLookupExtentExitFtraceEvent_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit Ext4EsLookupExtentExitFtraceEvent_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_dev() const { return at<1>().valid(); }
-  uint64_t dev() const { return at<1>().as_uint64(); }
-  bool has_ino() const { return at<2>().valid(); }
-  uint64_t ino() const { return at<2>().as_uint64(); }
-  bool has_lblk() const { return at<3>().valid(); }
-  uint32_t lblk() const { return at<3>().as_uint32(); }
-  bool has_len() const { return at<4>().valid(); }
-  uint32_t len() const { return at<4>().as_uint32(); }
-  bool has_pblk() const { return at<5>().valid(); }
-  uint64_t pblk() const { return at<5>().as_uint64(); }
-  bool has_status() const { return at<6>().valid(); }
-  uint64_t status() const { return at<6>().as_uint64(); }
-  bool has_found() const { return at<7>().valid(); }
-  int32_t found() const { return at<7>().as_int32(); }
-};
-
-class Ext4EsLookupExtentExitFtraceEvent : public ::protozero::Message {
- public:
-  using Decoder = Ext4EsLookupExtentExitFtraceEvent_Decoder;
-  enum : int32_t {
-    kDevFieldNumber = 1,
-    kInoFieldNumber = 2,
-    kLblkFieldNumber = 3,
-    kLenFieldNumber = 4,
-    kPblkFieldNumber = 5,
-    kStatusFieldNumber = 6,
-    kFoundFieldNumber = 7,
-  };
-
-  using FieldMetadata_Dev =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      Ext4EsLookupExtentExitFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Dev kDev() { return {}; }
-  void set_dev(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Dev::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Ino =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      Ext4EsLookupExtentExitFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Ino kIno() { return {}; }
-  void set_ino(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Ino::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Lblk =
-    ::protozero::proto_utils::FieldMetadata<
-      3,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      Ext4EsLookupExtentExitFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Lblk kLblk() { return {}; }
-  void set_lblk(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Lblk::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Len =
-    ::protozero::proto_utils::FieldMetadata<
-      4,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      Ext4EsLookupExtentExitFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Len kLen() { return {}; }
-  void set_len(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Len::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Pblk =
-    ::protozero::proto_utils::FieldMetadata<
-      5,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      Ext4EsLookupExtentExitFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Pblk kPblk() { return {}; }
-  void set_pblk(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Pblk::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Status =
-    ::protozero::proto_utils::FieldMetadata<
-      6,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      Ext4EsLookupExtentExitFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Status kStatus() { return {}; }
-  void set_status(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Status::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Found =
-    ::protozero::proto_utils::FieldMetadata<
-      7,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt32,
-      int32_t,
-      Ext4EsLookupExtentExitFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Found kFound() { return {}; }
-  void set_found(int32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Found::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt32>
-        ::Append(*this, field_id, value);
-  }
-};
-
-class Ext4EsLookupExtentEnterFtraceEvent_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/3, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  Ext4EsLookupExtentEnterFtraceEvent_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit Ext4EsLookupExtentEnterFtraceEvent_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit Ext4EsLookupExtentEnterFtraceEvent_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_dev() const { return at<1>().valid(); }
-  uint64_t dev() const { return at<1>().as_uint64(); }
-  bool has_ino() const { return at<2>().valid(); }
-  uint64_t ino() const { return at<2>().as_uint64(); }
-  bool has_lblk() const { return at<3>().valid(); }
-  uint32_t lblk() const { return at<3>().as_uint32(); }
-};
-
-class Ext4EsLookupExtentEnterFtraceEvent : public ::protozero::Message {
- public:
-  using Decoder = Ext4EsLookupExtentEnterFtraceEvent_Decoder;
-  enum : int32_t {
-    kDevFieldNumber = 1,
-    kInoFieldNumber = 2,
-    kLblkFieldNumber = 3,
-  };
-
-  using FieldMetadata_Dev =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      Ext4EsLookupExtentEnterFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Dev kDev() { return {}; }
-  void set_dev(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Dev::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Ino =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      Ext4EsLookupExtentEnterFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Ino kIno() { return {}; }
-  void set_ino(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Ino::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Lblk =
-    ::protozero::proto_utils::FieldMetadata<
-      3,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      Ext4EsLookupExtentEnterFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Lblk kLblk() { return {}; }
-  void set_lblk(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Lblk::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-};
-
-class Ext4EsInsertExtentFtraceEvent_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/6, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  Ext4EsInsertExtentFtraceEvent_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit Ext4EsInsertExtentFtraceEvent_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit Ext4EsInsertExtentFtraceEvent_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_dev() const { return at<1>().valid(); }
-  uint64_t dev() const { return at<1>().as_uint64(); }
-  bool has_ino() const { return at<2>().valid(); }
-  uint64_t ino() const { return at<2>().as_uint64(); }
-  bool has_lblk() const { return at<3>().valid(); }
-  uint32_t lblk() const { return at<3>().as_uint32(); }
-  bool has_len() const { return at<4>().valid(); }
-  uint32_t len() const { return at<4>().as_uint32(); }
-  bool has_pblk() const { return at<5>().valid(); }
-  uint64_t pblk() const { return at<5>().as_uint64(); }
-  bool has_status() const { return at<6>().valid(); }
-  uint64_t status() const { return at<6>().as_uint64(); }
-};
-
-class Ext4EsInsertExtentFtraceEvent : public ::protozero::Message {
- public:
-  using Decoder = Ext4EsInsertExtentFtraceEvent_Decoder;
-  enum : int32_t {
-    kDevFieldNumber = 1,
-    kInoFieldNumber = 2,
-    kLblkFieldNumber = 3,
-    kLenFieldNumber = 4,
-    kPblkFieldNumber = 5,
-    kStatusFieldNumber = 6,
-  };
-
-  using FieldMetadata_Dev =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      Ext4EsInsertExtentFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Dev kDev() { return {}; }
-  void set_dev(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Dev::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Ino =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      Ext4EsInsertExtentFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Ino kIno() { return {}; }
-  void set_ino(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Ino::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Lblk =
-    ::protozero::proto_utils::FieldMetadata<
-      3,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      Ext4EsInsertExtentFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Lblk kLblk() { return {}; }
-  void set_lblk(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Lblk::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Len =
-    ::protozero::proto_utils::FieldMetadata<
-      4,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      Ext4EsInsertExtentFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Len kLen() { return {}; }
-  void set_len(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Len::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Pblk =
-    ::protozero::proto_utils::FieldMetadata<
-      5,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      Ext4EsInsertExtentFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Pblk kPblk() { return {}; }
-  void set_pblk(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Pblk::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Status =
-    ::protozero::proto_utils::FieldMetadata<
-      6,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      Ext4EsInsertExtentFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Status kStatus() { return {}; }
-  void set_status(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Status::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-};
-
-class Ext4EsFindDelayedExtentRangeExitFtraceEvent_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/6, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  Ext4EsFindDelayedExtentRangeExitFtraceEvent_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit Ext4EsFindDelayedExtentRangeExitFtraceEvent_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit Ext4EsFindDelayedExtentRangeExitFtraceEvent_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_dev() const { return at<1>().valid(); }
-  uint64_t dev() const { return at<1>().as_uint64(); }
-  bool has_ino() const { return at<2>().valid(); }
-  uint64_t ino() const { return at<2>().as_uint64(); }
-  bool has_lblk() const { return at<3>().valid(); }
-  uint32_t lblk() const { return at<3>().as_uint32(); }
-  bool has_len() const { return at<4>().valid(); }
-  uint32_t len() const { return at<4>().as_uint32(); }
-  bool has_pblk() const { return at<5>().valid(); }
-  uint64_t pblk() const { return at<5>().as_uint64(); }
-  bool has_status() const { return at<6>().valid(); }
-  uint64_t status() const { return at<6>().as_uint64(); }
-};
-
-class Ext4EsFindDelayedExtentRangeExitFtraceEvent : public ::protozero::Message {
- public:
-  using Decoder = Ext4EsFindDelayedExtentRangeExitFtraceEvent_Decoder;
-  enum : int32_t {
-    kDevFieldNumber = 1,
-    kInoFieldNumber = 2,
-    kLblkFieldNumber = 3,
-    kLenFieldNumber = 4,
-    kPblkFieldNumber = 5,
-    kStatusFieldNumber = 6,
-  };
-
-  using FieldMetadata_Dev =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      Ext4EsFindDelayedExtentRangeExitFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Dev kDev() { return {}; }
-  void set_dev(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Dev::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Ino =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      Ext4EsFindDelayedExtentRangeExitFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Ino kIno() { return {}; }
-  void set_ino(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Ino::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Lblk =
-    ::protozero::proto_utils::FieldMetadata<
-      3,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      Ext4EsFindDelayedExtentRangeExitFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Lblk kLblk() { return {}; }
-  void set_lblk(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Lblk::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Len =
-    ::protozero::proto_utils::FieldMetadata<
-      4,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      Ext4EsFindDelayedExtentRangeExitFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Len kLen() { return {}; }
-  void set_len(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Len::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Pblk =
-    ::protozero::proto_utils::FieldMetadata<
-      5,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      Ext4EsFindDelayedExtentRangeExitFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Pblk kPblk() { return {}; }
-  void set_pblk(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Pblk::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Status =
-    ::protozero::proto_utils::FieldMetadata<
-      6,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      Ext4EsFindDelayedExtentRangeExitFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Status kStatus() { return {}; }
-  void set_status(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Status::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-};
-
-class Ext4EsFindDelayedExtentRangeEnterFtraceEvent_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/3, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  Ext4EsFindDelayedExtentRangeEnterFtraceEvent_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit Ext4EsFindDelayedExtentRangeEnterFtraceEvent_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit Ext4EsFindDelayedExtentRangeEnterFtraceEvent_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_dev() const { return at<1>().valid(); }
-  uint64_t dev() const { return at<1>().as_uint64(); }
-  bool has_ino() const { return at<2>().valid(); }
-  uint64_t ino() const { return at<2>().as_uint64(); }
-  bool has_lblk() const { return at<3>().valid(); }
-  uint32_t lblk() const { return at<3>().as_uint32(); }
-};
-
-class Ext4EsFindDelayedExtentRangeEnterFtraceEvent : public ::protozero::Message {
- public:
-  using Decoder = Ext4EsFindDelayedExtentRangeEnterFtraceEvent_Decoder;
-  enum : int32_t {
-    kDevFieldNumber = 1,
-    kInoFieldNumber = 2,
-    kLblkFieldNumber = 3,
-  };
-
-  using FieldMetadata_Dev =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      Ext4EsFindDelayedExtentRangeEnterFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Dev kDev() { return {}; }
-  void set_dev(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Dev::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Ino =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      Ext4EsFindDelayedExtentRangeEnterFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Ino kIno() { return {}; }
-  void set_ino(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Ino::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Lblk =
-    ::protozero::proto_utils::FieldMetadata<
-      3,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      Ext4EsFindDelayedExtentRangeEnterFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Lblk kLblk() { return {}; }
-  void set_lblk(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Lblk::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-};
-
-class Ext4EsCacheExtentFtraceEvent_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/6, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  Ext4EsCacheExtentFtraceEvent_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit Ext4EsCacheExtentFtraceEvent_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit Ext4EsCacheExtentFtraceEvent_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_dev() const { return at<1>().valid(); }
-  uint64_t dev() const { return at<1>().as_uint64(); }
-  bool has_ino() const { return at<2>().valid(); }
-  uint64_t ino() const { return at<2>().as_uint64(); }
-  bool has_lblk() const { return at<3>().valid(); }
-  uint32_t lblk() const { return at<3>().as_uint32(); }
-  bool has_len() const { return at<4>().valid(); }
-  uint32_t len() const { return at<4>().as_uint32(); }
-  bool has_pblk() const { return at<5>().valid(); }
-  uint64_t pblk() const { return at<5>().as_uint64(); }
-  bool has_status() const { return at<6>().valid(); }
-  uint32_t status() const { return at<6>().as_uint32(); }
-};
-
-class Ext4EsCacheExtentFtraceEvent : public ::protozero::Message {
- public:
-  using Decoder = Ext4EsCacheExtentFtraceEvent_Decoder;
-  enum : int32_t {
-    kDevFieldNumber = 1,
-    kInoFieldNumber = 2,
-    kLblkFieldNumber = 3,
-    kLenFieldNumber = 4,
-    kPblkFieldNumber = 5,
-    kStatusFieldNumber = 6,
-  };
-
-  using FieldMetadata_Dev =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      Ext4EsCacheExtentFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Dev kDev() { return {}; }
-  void set_dev(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Dev::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Ino =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      Ext4EsCacheExtentFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Ino kIno() { return {}; }
-  void set_ino(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Ino::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Lblk =
-    ::protozero::proto_utils::FieldMetadata<
-      3,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      Ext4EsCacheExtentFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Lblk kLblk() { return {}; }
-  void set_lblk(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Lblk::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Len =
-    ::protozero::proto_utils::FieldMetadata<
-      4,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      Ext4EsCacheExtentFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Len kLen() { return {}; }
-  void set_len(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Len::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Pblk =
-    ::protozero::proto_utils::FieldMetadata<
-      5,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      Ext4EsCacheExtentFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Pblk kPblk() { return {}; }
-  void set_pblk(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Pblk::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Status =
-    ::protozero::proto_utils::FieldMetadata<
-      6,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      Ext4EsCacheExtentFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Status kStatus() { return {}; }
-  void set_status(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Status::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-};
-
-class Ext4DropInodeFtraceEvent_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/3, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  Ext4DropInodeFtraceEvent_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit Ext4DropInodeFtraceEvent_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit Ext4DropInodeFtraceEvent_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_dev() const { return at<1>().valid(); }
-  uint64_t dev() const { return at<1>().as_uint64(); }
-  bool has_ino() const { return at<2>().valid(); }
-  uint64_t ino() const { return at<2>().as_uint64(); }
-  bool has_drop() const { return at<3>().valid(); }
-  int32_t drop() const { return at<3>().as_int32(); }
-};
-
-class Ext4DropInodeFtraceEvent : public ::protozero::Message {
- public:
-  using Decoder = Ext4DropInodeFtraceEvent_Decoder;
-  enum : int32_t {
-    kDevFieldNumber = 1,
-    kInoFieldNumber = 2,
-    kDropFieldNumber = 3,
-  };
-
-  using FieldMetadata_Dev =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      Ext4DropInodeFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Dev kDev() { return {}; }
-  void set_dev(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Dev::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Ino =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      Ext4DropInodeFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Ino kIno() { return {}; }
-  void set_ino(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Ino::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Drop =
-    ::protozero::proto_utils::FieldMetadata<
-      3,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt32,
-      int32_t,
-      Ext4DropInodeFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Drop kDrop() { return {}; }
-  void set_drop(int32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Drop::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt32>
-        ::Append(*this, field_id, value);
-  }
-};
-
-class Ext4DiscardPreallocationsFtraceEvent_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/2, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  Ext4DiscardPreallocationsFtraceEvent_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit Ext4DiscardPreallocationsFtraceEvent_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit Ext4DiscardPreallocationsFtraceEvent_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_dev() const { return at<1>().valid(); }
-  uint64_t dev() const { return at<1>().as_uint64(); }
-  bool has_ino() const { return at<2>().valid(); }
-  uint64_t ino() const { return at<2>().as_uint64(); }
-};
-
-class Ext4DiscardPreallocationsFtraceEvent : public ::protozero::Message {
- public:
-  using Decoder = Ext4DiscardPreallocationsFtraceEvent_Decoder;
-  enum : int32_t {
-    kDevFieldNumber = 1,
-    kInoFieldNumber = 2,
-  };
-
-  using FieldMetadata_Dev =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      Ext4DiscardPreallocationsFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Dev kDev() { return {}; }
-  void set_dev(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Dev::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Ino =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      Ext4DiscardPreallocationsFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Ino kIno() { return {}; }
-  void set_ino(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Ino::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-};
-
-class Ext4DiscardBlocksFtraceEvent_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/3, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  Ext4DiscardBlocksFtraceEvent_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit Ext4DiscardBlocksFtraceEvent_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit Ext4DiscardBlocksFtraceEvent_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_dev() const { return at<1>().valid(); }
-  uint64_t dev() const { return at<1>().as_uint64(); }
-  bool has_blk() const { return at<2>().valid(); }
-  uint64_t blk() const { return at<2>().as_uint64(); }
-  bool has_count() const { return at<3>().valid(); }
-  uint64_t count() const { return at<3>().as_uint64(); }
-};
-
-class Ext4DiscardBlocksFtraceEvent : public ::protozero::Message {
- public:
-  using Decoder = Ext4DiscardBlocksFtraceEvent_Decoder;
-  enum : int32_t {
-    kDevFieldNumber = 1,
-    kBlkFieldNumber = 2,
-    kCountFieldNumber = 3,
-  };
-
-  using FieldMetadata_Dev =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      Ext4DiscardBlocksFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Dev kDev() { return {}; }
-  void set_dev(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Dev::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Blk =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      Ext4DiscardBlocksFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Blk kBlk() { return {}; }
-  void set_blk(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Blk::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Count =
-    ::protozero::proto_utils::FieldMetadata<
-      3,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      Ext4DiscardBlocksFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Count kCount() { return {}; }
-  void set_count(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Count::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-};
-
-class Ext4DirectIOExitFtraceEvent_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/6, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  Ext4DirectIOExitFtraceEvent_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit Ext4DirectIOExitFtraceEvent_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit Ext4DirectIOExitFtraceEvent_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_dev() const { return at<1>().valid(); }
-  uint64_t dev() const { return at<1>().as_uint64(); }
-  bool has_ino() const { return at<2>().valid(); }
-  uint64_t ino() const { return at<2>().as_uint64(); }
-  bool has_pos() const { return at<3>().valid(); }
-  int64_t pos() const { return at<3>().as_int64(); }
-  bool has_len() const { return at<4>().valid(); }
-  uint64_t len() const { return at<4>().as_uint64(); }
-  bool has_rw() const { return at<5>().valid(); }
-  int32_t rw() const { return at<5>().as_int32(); }
-  bool has_ret() const { return at<6>().valid(); }
-  int32_t ret() const { return at<6>().as_int32(); }
-};
-
-class Ext4DirectIOExitFtraceEvent : public ::protozero::Message {
- public:
-  using Decoder = Ext4DirectIOExitFtraceEvent_Decoder;
-  enum : int32_t {
-    kDevFieldNumber = 1,
-    kInoFieldNumber = 2,
-    kPosFieldNumber = 3,
-    kLenFieldNumber = 4,
-    kRwFieldNumber = 5,
-    kRetFieldNumber = 6,
-  };
-
-  using FieldMetadata_Dev =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      Ext4DirectIOExitFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Dev kDev() { return {}; }
-  void set_dev(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Dev::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Ino =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      Ext4DirectIOExitFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Ino kIno() { return {}; }
-  void set_ino(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Ino::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Pos =
-    ::protozero::proto_utils::FieldMetadata<
-      3,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt64,
-      int64_t,
-      Ext4DirectIOExitFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Pos kPos() { return {}; }
-  void set_pos(int64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Pos::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Len =
-    ::protozero::proto_utils::FieldMetadata<
-      4,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      Ext4DirectIOExitFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Len kLen() { return {}; }
-  void set_len(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Len::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Rw =
-    ::protozero::proto_utils::FieldMetadata<
-      5,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt32,
-      int32_t,
-      Ext4DirectIOExitFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Rw kRw() { return {}; }
-  void set_rw(int32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Rw::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Ret =
-    ::protozero::proto_utils::FieldMetadata<
-      6,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt32,
-      int32_t,
-      Ext4DirectIOExitFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Ret kRet() { return {}; }
-  void set_ret(int32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Ret::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt32>
-        ::Append(*this, field_id, value);
-  }
-};
-
-class Ext4DirectIOEnterFtraceEvent_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/5, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  Ext4DirectIOEnterFtraceEvent_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit Ext4DirectIOEnterFtraceEvent_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit Ext4DirectIOEnterFtraceEvent_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_dev() const { return at<1>().valid(); }
-  uint64_t dev() const { return at<1>().as_uint64(); }
-  bool has_ino() const { return at<2>().valid(); }
-  uint64_t ino() const { return at<2>().as_uint64(); }
-  bool has_pos() const { return at<3>().valid(); }
-  int64_t pos() const { return at<3>().as_int64(); }
-  bool has_len() const { return at<4>().valid(); }
-  uint64_t len() const { return at<4>().as_uint64(); }
-  bool has_rw() const { return at<5>().valid(); }
-  int32_t rw() const { return at<5>().as_int32(); }
-};
-
-class Ext4DirectIOEnterFtraceEvent : public ::protozero::Message {
- public:
-  using Decoder = Ext4DirectIOEnterFtraceEvent_Decoder;
-  enum : int32_t {
-    kDevFieldNumber = 1,
-    kInoFieldNumber = 2,
-    kPosFieldNumber = 3,
-    kLenFieldNumber = 4,
-    kRwFieldNumber = 5,
-  };
-
-  using FieldMetadata_Dev =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      Ext4DirectIOEnterFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Dev kDev() { return {}; }
-  void set_dev(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Dev::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Ino =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      Ext4DirectIOEnterFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Ino kIno() { return {}; }
-  void set_ino(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Ino::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Pos =
-    ::protozero::proto_utils::FieldMetadata<
-      3,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt64,
-      int64_t,
-      Ext4DirectIOEnterFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Pos kPos() { return {}; }
-  void set_pos(int64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Pos::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Len =
-    ::protozero::proto_utils::FieldMetadata<
-      4,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      Ext4DirectIOEnterFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Len kLen() { return {}; }
-  void set_len(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Len::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Rw =
-    ::protozero::proto_utils::FieldMetadata<
-      5,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt32,
-      int32_t,
-      Ext4DirectIOEnterFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Rw kRw() { return {}; }
-  void set_rw(int32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Rw::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt32>
-        ::Append(*this, field_id, value);
-  }
-};
-
-class Ext4DaWritePagesExtentFtraceEvent_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/5, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  Ext4DaWritePagesExtentFtraceEvent_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit Ext4DaWritePagesExtentFtraceEvent_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit Ext4DaWritePagesExtentFtraceEvent_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_dev() const { return at<1>().valid(); }
-  uint64_t dev() const { return at<1>().as_uint64(); }
-  bool has_ino() const { return at<2>().valid(); }
-  uint64_t ino() const { return at<2>().as_uint64(); }
-  bool has_lblk() const { return at<3>().valid(); }
-  uint64_t lblk() const { return at<3>().as_uint64(); }
-  bool has_len() const { return at<4>().valid(); }
-  uint32_t len() const { return at<4>().as_uint32(); }
-  bool has_flags() const { return at<5>().valid(); }
-  uint32_t flags() const { return at<5>().as_uint32(); }
-};
-
-class Ext4DaWritePagesExtentFtraceEvent : public ::protozero::Message {
- public:
-  using Decoder = Ext4DaWritePagesExtentFtraceEvent_Decoder;
-  enum : int32_t {
-    kDevFieldNumber = 1,
-    kInoFieldNumber = 2,
-    kLblkFieldNumber = 3,
-    kLenFieldNumber = 4,
-    kFlagsFieldNumber = 5,
-  };
-
-  using FieldMetadata_Dev =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      Ext4DaWritePagesExtentFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Dev kDev() { return {}; }
-  void set_dev(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Dev::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Ino =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      Ext4DaWritePagesExtentFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Ino kIno() { return {}; }
-  void set_ino(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Ino::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Lblk =
-    ::protozero::proto_utils::FieldMetadata<
-      3,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      Ext4DaWritePagesExtentFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Lblk kLblk() { return {}; }
-  void set_lblk(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Lblk::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Len =
-    ::protozero::proto_utils::FieldMetadata<
-      4,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      Ext4DaWritePagesExtentFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Len kLen() { return {}; }
-  void set_len(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Len::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Flags =
-    ::protozero::proto_utils::FieldMetadata<
-      5,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      Ext4DaWritePagesExtentFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Flags kFlags() { return {}; }
-  void set_flags(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Flags::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-};
-
-class Ext4DaWritePagesFtraceEvent_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/10, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  Ext4DaWritePagesFtraceEvent_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit Ext4DaWritePagesFtraceEvent_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit Ext4DaWritePagesFtraceEvent_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_dev() const { return at<1>().valid(); }
-  uint64_t dev() const { return at<1>().as_uint64(); }
-  bool has_ino() const { return at<2>().valid(); }
-  uint64_t ino() const { return at<2>().as_uint64(); }
-  bool has_first_page() const { return at<3>().valid(); }
-  uint64_t first_page() const { return at<3>().as_uint64(); }
-  bool has_nr_to_write() const { return at<4>().valid(); }
-  int64_t nr_to_write() const { return at<4>().as_int64(); }
-  bool has_sync_mode() const { return at<5>().valid(); }
-  int32_t sync_mode() const { return at<5>().as_int32(); }
-  bool has_b_blocknr() const { return at<6>().valid(); }
-  uint64_t b_blocknr() const { return at<6>().as_uint64(); }
-  bool has_b_size() const { return at<7>().valid(); }
-  uint32_t b_size() const { return at<7>().as_uint32(); }
-  bool has_b_state() const { return at<8>().valid(); }
-  uint32_t b_state() const { return at<8>().as_uint32(); }
-  bool has_io_done() const { return at<9>().valid(); }
-  int32_t io_done() const { return at<9>().as_int32(); }
-  bool has_pages_written() const { return at<10>().valid(); }
-  int32_t pages_written() const { return at<10>().as_int32(); }
-};
-
-class Ext4DaWritePagesFtraceEvent : public ::protozero::Message {
- public:
-  using Decoder = Ext4DaWritePagesFtraceEvent_Decoder;
-  enum : int32_t {
-    kDevFieldNumber = 1,
-    kInoFieldNumber = 2,
-    kFirstPageFieldNumber = 3,
-    kNrToWriteFieldNumber = 4,
-    kSyncModeFieldNumber = 5,
-    kBBlocknrFieldNumber = 6,
-    kBSizeFieldNumber = 7,
-    kBStateFieldNumber = 8,
-    kIoDoneFieldNumber = 9,
-    kPagesWrittenFieldNumber = 10,
-  };
-
-  using FieldMetadata_Dev =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      Ext4DaWritePagesFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Dev kDev() { return {}; }
-  void set_dev(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Dev::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Ino =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      Ext4DaWritePagesFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Ino kIno() { return {}; }
-  void set_ino(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Ino::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_FirstPage =
-    ::protozero::proto_utils::FieldMetadata<
-      3,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      Ext4DaWritePagesFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_FirstPage kFirstPage() { return {}; }
-  void set_first_page(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_FirstPage::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_NrToWrite =
-    ::protozero::proto_utils::FieldMetadata<
-      4,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt64,
-      int64_t,
-      Ext4DaWritePagesFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_NrToWrite kNrToWrite() { return {}; }
-  void set_nr_to_write(int64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_NrToWrite::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_SyncMode =
-    ::protozero::proto_utils::FieldMetadata<
-      5,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt32,
-      int32_t,
-      Ext4DaWritePagesFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_SyncMode kSyncMode() { return {}; }
-  void set_sync_mode(int32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_SyncMode::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_BBlocknr =
-    ::protozero::proto_utils::FieldMetadata<
-      6,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      Ext4DaWritePagesFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_BBlocknr kBBlocknr() { return {}; }
-  void set_b_blocknr(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_BBlocknr::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_BSize =
-    ::protozero::proto_utils::FieldMetadata<
-      7,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      Ext4DaWritePagesFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_BSize kBSize() { return {}; }
-  void set_b_size(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_BSize::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_BState =
-    ::protozero::proto_utils::FieldMetadata<
-      8,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      Ext4DaWritePagesFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_BState kBState() { return {}; }
-  void set_b_state(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_BState::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_IoDone =
-    ::protozero::proto_utils::FieldMetadata<
-      9,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt32,
-      int32_t,
-      Ext4DaWritePagesFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_IoDone kIoDone() { return {}; }
-  void set_io_done(int32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_IoDone::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_PagesWritten =
-    ::protozero::proto_utils::FieldMetadata<
-      10,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt32,
-      int32_t,
-      Ext4DaWritePagesFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_PagesWritten kPagesWritten() { return {}; }
-  void set_pages_written(int32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_PagesWritten::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt32>
-        ::Append(*this, field_id, value);
-  }
-};
-
-class Ext4DaUpdateReserveSpaceFtraceEvent_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/9, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  Ext4DaUpdateReserveSpaceFtraceEvent_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit Ext4DaUpdateReserveSpaceFtraceEvent_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit Ext4DaUpdateReserveSpaceFtraceEvent_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_dev() const { return at<1>().valid(); }
-  uint64_t dev() const { return at<1>().as_uint64(); }
-  bool has_ino() const { return at<2>().valid(); }
-  uint64_t ino() const { return at<2>().as_uint64(); }
-  bool has_i_blocks() const { return at<3>().valid(); }
-  uint64_t i_blocks() const { return at<3>().as_uint64(); }
-  bool has_used_blocks() const { return at<4>().valid(); }
-  int32_t used_blocks() const { return at<4>().as_int32(); }
-  bool has_reserved_data_blocks() const { return at<5>().valid(); }
-  int32_t reserved_data_blocks() const { return at<5>().as_int32(); }
-  bool has_reserved_meta_blocks() const { return at<6>().valid(); }
-  int32_t reserved_meta_blocks() const { return at<6>().as_int32(); }
-  bool has_allocated_meta_blocks() const { return at<7>().valid(); }
-  int32_t allocated_meta_blocks() const { return at<7>().as_int32(); }
-  bool has_quota_claim() const { return at<8>().valid(); }
-  int32_t quota_claim() const { return at<8>().as_int32(); }
-  bool has_mode() const { return at<9>().valid(); }
-  uint32_t mode() const { return at<9>().as_uint32(); }
-};
-
-class Ext4DaUpdateReserveSpaceFtraceEvent : public ::protozero::Message {
- public:
-  using Decoder = Ext4DaUpdateReserveSpaceFtraceEvent_Decoder;
-  enum : int32_t {
-    kDevFieldNumber = 1,
-    kInoFieldNumber = 2,
-    kIBlocksFieldNumber = 3,
-    kUsedBlocksFieldNumber = 4,
-    kReservedDataBlocksFieldNumber = 5,
-    kReservedMetaBlocksFieldNumber = 6,
-    kAllocatedMetaBlocksFieldNumber = 7,
-    kQuotaClaimFieldNumber = 8,
-    kModeFieldNumber = 9,
-  };
-
-  using FieldMetadata_Dev =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      Ext4DaUpdateReserveSpaceFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Dev kDev() { return {}; }
-  void set_dev(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Dev::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Ino =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      Ext4DaUpdateReserveSpaceFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Ino kIno() { return {}; }
-  void set_ino(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Ino::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_IBlocks =
-    ::protozero::proto_utils::FieldMetadata<
-      3,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      Ext4DaUpdateReserveSpaceFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_IBlocks kIBlocks() { return {}; }
-  void set_i_blocks(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_IBlocks::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_UsedBlocks =
-    ::protozero::proto_utils::FieldMetadata<
-      4,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt32,
-      int32_t,
-      Ext4DaUpdateReserveSpaceFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_UsedBlocks kUsedBlocks() { return {}; }
-  void set_used_blocks(int32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_UsedBlocks::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_ReservedDataBlocks =
-    ::protozero::proto_utils::FieldMetadata<
-      5,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt32,
-      int32_t,
-      Ext4DaUpdateReserveSpaceFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_ReservedDataBlocks kReservedDataBlocks() { return {}; }
-  void set_reserved_data_blocks(int32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_ReservedDataBlocks::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_ReservedMetaBlocks =
-    ::protozero::proto_utils::FieldMetadata<
-      6,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt32,
-      int32_t,
-      Ext4DaUpdateReserveSpaceFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_ReservedMetaBlocks kReservedMetaBlocks() { return {}; }
-  void set_reserved_meta_blocks(int32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_ReservedMetaBlocks::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_AllocatedMetaBlocks =
-    ::protozero::proto_utils::FieldMetadata<
-      7,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt32,
-      int32_t,
-      Ext4DaUpdateReserveSpaceFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_AllocatedMetaBlocks kAllocatedMetaBlocks() { return {}; }
-  void set_allocated_meta_blocks(int32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_AllocatedMetaBlocks::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_QuotaClaim =
-    ::protozero::proto_utils::FieldMetadata<
-      8,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt32,
-      int32_t,
-      Ext4DaUpdateReserveSpaceFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_QuotaClaim kQuotaClaim() { return {}; }
-  void set_quota_claim(int32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_QuotaClaim::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Mode =
-    ::protozero::proto_utils::FieldMetadata<
-      9,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      Ext4DaUpdateReserveSpaceFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Mode kMode() { return {}; }
-  void set_mode(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Mode::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-};
-
-class Ext4DaReserveSpaceFtraceEvent_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/7, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  Ext4DaReserveSpaceFtraceEvent_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit Ext4DaReserveSpaceFtraceEvent_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit Ext4DaReserveSpaceFtraceEvent_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_dev() const { return at<1>().valid(); }
-  uint64_t dev() const { return at<1>().as_uint64(); }
-  bool has_ino() const { return at<2>().valid(); }
-  uint64_t ino() const { return at<2>().as_uint64(); }
-  bool has_i_blocks() const { return at<3>().valid(); }
-  uint64_t i_blocks() const { return at<3>().as_uint64(); }
-  bool has_reserved_data_blocks() const { return at<4>().valid(); }
-  int32_t reserved_data_blocks() const { return at<4>().as_int32(); }
-  bool has_reserved_meta_blocks() const { return at<5>().valid(); }
-  int32_t reserved_meta_blocks() const { return at<5>().as_int32(); }
-  bool has_mode() const { return at<6>().valid(); }
-  uint32_t mode() const { return at<6>().as_uint32(); }
-  bool has_md_needed() const { return at<7>().valid(); }
-  int32_t md_needed() const { return at<7>().as_int32(); }
-};
-
-class Ext4DaReserveSpaceFtraceEvent : public ::protozero::Message {
- public:
-  using Decoder = Ext4DaReserveSpaceFtraceEvent_Decoder;
-  enum : int32_t {
-    kDevFieldNumber = 1,
-    kInoFieldNumber = 2,
-    kIBlocksFieldNumber = 3,
-    kReservedDataBlocksFieldNumber = 4,
-    kReservedMetaBlocksFieldNumber = 5,
-    kModeFieldNumber = 6,
-    kMdNeededFieldNumber = 7,
-  };
-
-  using FieldMetadata_Dev =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      Ext4DaReserveSpaceFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Dev kDev() { return {}; }
-  void set_dev(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Dev::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Ino =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      Ext4DaReserveSpaceFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Ino kIno() { return {}; }
-  void set_ino(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Ino::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_IBlocks =
-    ::protozero::proto_utils::FieldMetadata<
-      3,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      Ext4DaReserveSpaceFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_IBlocks kIBlocks() { return {}; }
-  void set_i_blocks(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_IBlocks::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_ReservedDataBlocks =
-    ::protozero::proto_utils::FieldMetadata<
-      4,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt32,
-      int32_t,
-      Ext4DaReserveSpaceFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_ReservedDataBlocks kReservedDataBlocks() { return {}; }
-  void set_reserved_data_blocks(int32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_ReservedDataBlocks::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_ReservedMetaBlocks =
-    ::protozero::proto_utils::FieldMetadata<
-      5,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt32,
-      int32_t,
-      Ext4DaReserveSpaceFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_ReservedMetaBlocks kReservedMetaBlocks() { return {}; }
-  void set_reserved_meta_blocks(int32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_ReservedMetaBlocks::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Mode =
-    ::protozero::proto_utils::FieldMetadata<
-      6,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      Ext4DaReserveSpaceFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Mode kMode() { return {}; }
-  void set_mode(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Mode::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_MdNeeded =
-    ::protozero::proto_utils::FieldMetadata<
-      7,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt32,
-      int32_t,
-      Ext4DaReserveSpaceFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_MdNeeded kMdNeeded() { return {}; }
-  void set_md_needed(int32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_MdNeeded::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt32>
-        ::Append(*this, field_id, value);
-  }
-};
-
-class Ext4DaReleaseSpaceFtraceEvent_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/8, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  Ext4DaReleaseSpaceFtraceEvent_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit Ext4DaReleaseSpaceFtraceEvent_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit Ext4DaReleaseSpaceFtraceEvent_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_dev() const { return at<1>().valid(); }
-  uint64_t dev() const { return at<1>().as_uint64(); }
-  bool has_ino() const { return at<2>().valid(); }
-  uint64_t ino() const { return at<2>().as_uint64(); }
-  bool has_i_blocks() const { return at<3>().valid(); }
-  uint64_t i_blocks() const { return at<3>().as_uint64(); }
-  bool has_freed_blocks() const { return at<4>().valid(); }
-  int32_t freed_blocks() const { return at<4>().as_int32(); }
-  bool has_reserved_data_blocks() const { return at<5>().valid(); }
-  int32_t reserved_data_blocks() const { return at<5>().as_int32(); }
-  bool has_reserved_meta_blocks() const { return at<6>().valid(); }
-  int32_t reserved_meta_blocks() const { return at<6>().as_int32(); }
-  bool has_allocated_meta_blocks() const { return at<7>().valid(); }
-  int32_t allocated_meta_blocks() const { return at<7>().as_int32(); }
-  bool has_mode() const { return at<8>().valid(); }
-  uint32_t mode() const { return at<8>().as_uint32(); }
-};
-
-class Ext4DaReleaseSpaceFtraceEvent : public ::protozero::Message {
- public:
-  using Decoder = Ext4DaReleaseSpaceFtraceEvent_Decoder;
-  enum : int32_t {
-    kDevFieldNumber = 1,
-    kInoFieldNumber = 2,
-    kIBlocksFieldNumber = 3,
-    kFreedBlocksFieldNumber = 4,
-    kReservedDataBlocksFieldNumber = 5,
-    kReservedMetaBlocksFieldNumber = 6,
-    kAllocatedMetaBlocksFieldNumber = 7,
-    kModeFieldNumber = 8,
-  };
-
-  using FieldMetadata_Dev =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      Ext4DaReleaseSpaceFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Dev kDev() { return {}; }
-  void set_dev(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Dev::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Ino =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      Ext4DaReleaseSpaceFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Ino kIno() { return {}; }
-  void set_ino(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Ino::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_IBlocks =
-    ::protozero::proto_utils::FieldMetadata<
-      3,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      Ext4DaReleaseSpaceFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_IBlocks kIBlocks() { return {}; }
-  void set_i_blocks(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_IBlocks::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_FreedBlocks =
-    ::protozero::proto_utils::FieldMetadata<
-      4,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt32,
-      int32_t,
-      Ext4DaReleaseSpaceFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_FreedBlocks kFreedBlocks() { return {}; }
-  void set_freed_blocks(int32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_FreedBlocks::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_ReservedDataBlocks =
-    ::protozero::proto_utils::FieldMetadata<
-      5,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt32,
-      int32_t,
-      Ext4DaReleaseSpaceFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_ReservedDataBlocks kReservedDataBlocks() { return {}; }
-  void set_reserved_data_blocks(int32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_ReservedDataBlocks::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_ReservedMetaBlocks =
-    ::protozero::proto_utils::FieldMetadata<
-      6,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt32,
-      int32_t,
-      Ext4DaReleaseSpaceFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_ReservedMetaBlocks kReservedMetaBlocks() { return {}; }
-  void set_reserved_meta_blocks(int32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_ReservedMetaBlocks::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_AllocatedMetaBlocks =
-    ::protozero::proto_utils::FieldMetadata<
-      7,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt32,
-      int32_t,
-      Ext4DaReleaseSpaceFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_AllocatedMetaBlocks kAllocatedMetaBlocks() { return {}; }
-  void set_allocated_meta_blocks(int32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_AllocatedMetaBlocks::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Mode =
-    ::protozero::proto_utils::FieldMetadata<
-      8,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      Ext4DaReleaseSpaceFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Mode kMode() { return {}; }
-  void set_mode(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Mode::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-};
-
-class Ext4CollapseRangeFtraceEvent_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/4, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  Ext4CollapseRangeFtraceEvent_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit Ext4CollapseRangeFtraceEvent_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit Ext4CollapseRangeFtraceEvent_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_dev() const { return at<1>().valid(); }
-  uint64_t dev() const { return at<1>().as_uint64(); }
-  bool has_ino() const { return at<2>().valid(); }
-  uint64_t ino() const { return at<2>().as_uint64(); }
-  bool has_offset() const { return at<3>().valid(); }
-  int64_t offset() const { return at<3>().as_int64(); }
-  bool has_len() const { return at<4>().valid(); }
-  int64_t len() const { return at<4>().as_int64(); }
-};
-
-class Ext4CollapseRangeFtraceEvent : public ::protozero::Message {
- public:
-  using Decoder = Ext4CollapseRangeFtraceEvent_Decoder;
-  enum : int32_t {
-    kDevFieldNumber = 1,
-    kInoFieldNumber = 2,
-    kOffsetFieldNumber = 3,
-    kLenFieldNumber = 4,
-  };
-
-  using FieldMetadata_Dev =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      Ext4CollapseRangeFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Dev kDev() { return {}; }
-  void set_dev(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Dev::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Ino =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      Ext4CollapseRangeFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Ino kIno() { return {}; }
-  void set_ino(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Ino::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Offset =
-    ::protozero::proto_utils::FieldMetadata<
-      3,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt64,
-      int64_t,
-      Ext4CollapseRangeFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Offset kOffset() { return {}; }
-  void set_offset(int64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Offset::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Len =
-    ::protozero::proto_utils::FieldMetadata<
-      4,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt64,
-      int64_t,
-      Ext4CollapseRangeFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Len kLen() { return {}; }
-  void set_len(int64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Len::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt64>
-        ::Append(*this, field_id, value);
-  }
-};
-
-class Ext4BeginOrderedTruncateFtraceEvent_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/3, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  Ext4BeginOrderedTruncateFtraceEvent_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit Ext4BeginOrderedTruncateFtraceEvent_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit Ext4BeginOrderedTruncateFtraceEvent_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_dev() const { return at<1>().valid(); }
-  uint64_t dev() const { return at<1>().as_uint64(); }
-  bool has_ino() const { return at<2>().valid(); }
-  uint64_t ino() const { return at<2>().as_uint64(); }
-  bool has_new_size() const { return at<3>().valid(); }
-  int64_t new_size() const { return at<3>().as_int64(); }
-};
-
-class Ext4BeginOrderedTruncateFtraceEvent : public ::protozero::Message {
- public:
-  using Decoder = Ext4BeginOrderedTruncateFtraceEvent_Decoder;
-  enum : int32_t {
-    kDevFieldNumber = 1,
-    kInoFieldNumber = 2,
-    kNewSizeFieldNumber = 3,
-  };
-
-  using FieldMetadata_Dev =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      Ext4BeginOrderedTruncateFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Dev kDev() { return {}; }
-  void set_dev(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Dev::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Ino =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      Ext4BeginOrderedTruncateFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Ino kIno() { return {}; }
-  void set_ino(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Ino::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_NewSize =
-    ::protozero::proto_utils::FieldMetadata<
-      3,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt64,
-      int64_t,
-      Ext4BeginOrderedTruncateFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_NewSize kNewSize() { return {}; }
-  void set_new_size(int64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_NewSize::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt64>
-        ::Append(*this, field_id, value);
-  }
-};
-
-class Ext4AllocateInodeFtraceEvent_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/4, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  Ext4AllocateInodeFtraceEvent_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit Ext4AllocateInodeFtraceEvent_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit Ext4AllocateInodeFtraceEvent_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_dev() const { return at<1>().valid(); }
-  uint64_t dev() const { return at<1>().as_uint64(); }
-  bool has_ino() const { return at<2>().valid(); }
-  uint64_t ino() const { return at<2>().as_uint64(); }
-  bool has_dir() const { return at<3>().valid(); }
-  uint64_t dir() const { return at<3>().as_uint64(); }
-  bool has_mode() const { return at<4>().valid(); }
-  uint32_t mode() const { return at<4>().as_uint32(); }
-};
-
-class Ext4AllocateInodeFtraceEvent : public ::protozero::Message {
- public:
-  using Decoder = Ext4AllocateInodeFtraceEvent_Decoder;
-  enum : int32_t {
-    kDevFieldNumber = 1,
-    kInoFieldNumber = 2,
-    kDirFieldNumber = 3,
-    kModeFieldNumber = 4,
-  };
-
-  using FieldMetadata_Dev =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      Ext4AllocateInodeFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Dev kDev() { return {}; }
-  void set_dev(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Dev::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Ino =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      Ext4AllocateInodeFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Ino kIno() { return {}; }
-  void set_ino(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Ino::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Dir =
-    ::protozero::proto_utils::FieldMetadata<
-      3,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      Ext4AllocateInodeFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Dir kDir() { return {}; }
-  void set_dir(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Dir::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Mode =
-    ::protozero::proto_utils::FieldMetadata<
-      4,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      Ext4AllocateInodeFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Mode kMode() { return {}; }
-  void set_mode(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Mode::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-};
-
-class Ext4AllocateBlocksFtraceEvent_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/11, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  Ext4AllocateBlocksFtraceEvent_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit Ext4AllocateBlocksFtraceEvent_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit Ext4AllocateBlocksFtraceEvent_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_dev() const { return at<1>().valid(); }
-  uint64_t dev() const { return at<1>().as_uint64(); }
-  bool has_ino() const { return at<2>().valid(); }
-  uint64_t ino() const { return at<2>().as_uint64(); }
-  bool has_block() const { return at<3>().valid(); }
-  uint64_t block() const { return at<3>().as_uint64(); }
-  bool has_len() const { return at<4>().valid(); }
-  uint32_t len() const { return at<4>().as_uint32(); }
-  bool has_logical() const { return at<5>().valid(); }
-  uint32_t logical() const { return at<5>().as_uint32(); }
-  bool has_lleft() const { return at<6>().valid(); }
-  uint32_t lleft() const { return at<6>().as_uint32(); }
-  bool has_lright() const { return at<7>().valid(); }
-  uint32_t lright() const { return at<7>().as_uint32(); }
-  bool has_goal() const { return at<8>().valid(); }
-  uint64_t goal() const { return at<8>().as_uint64(); }
-  bool has_pleft() const { return at<9>().valid(); }
-  uint64_t pleft() const { return at<9>().as_uint64(); }
-  bool has_pright() const { return at<10>().valid(); }
-  uint64_t pright() const { return at<10>().as_uint64(); }
-  bool has_flags() const { return at<11>().valid(); }
-  uint32_t flags() const { return at<11>().as_uint32(); }
-};
-
-class Ext4AllocateBlocksFtraceEvent : public ::protozero::Message {
- public:
-  using Decoder = Ext4AllocateBlocksFtraceEvent_Decoder;
-  enum : int32_t {
-    kDevFieldNumber = 1,
-    kInoFieldNumber = 2,
-    kBlockFieldNumber = 3,
-    kLenFieldNumber = 4,
-    kLogicalFieldNumber = 5,
-    kLleftFieldNumber = 6,
-    kLrightFieldNumber = 7,
-    kGoalFieldNumber = 8,
-    kPleftFieldNumber = 9,
-    kPrightFieldNumber = 10,
-    kFlagsFieldNumber = 11,
-  };
-
-  using FieldMetadata_Dev =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      Ext4AllocateBlocksFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Dev kDev() { return {}; }
-  void set_dev(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Dev::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Ino =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      Ext4AllocateBlocksFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Ino kIno() { return {}; }
-  void set_ino(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Ino::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Block =
-    ::protozero::proto_utils::FieldMetadata<
-      3,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      Ext4AllocateBlocksFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Block kBlock() { return {}; }
-  void set_block(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Block::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Len =
-    ::protozero::proto_utils::FieldMetadata<
-      4,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      Ext4AllocateBlocksFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Len kLen() { return {}; }
-  void set_len(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Len::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Logical =
-    ::protozero::proto_utils::FieldMetadata<
-      5,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      Ext4AllocateBlocksFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Logical kLogical() { return {}; }
-  void set_logical(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Logical::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Lleft =
-    ::protozero::proto_utils::FieldMetadata<
-      6,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      Ext4AllocateBlocksFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Lleft kLleft() { return {}; }
-  void set_lleft(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Lleft::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Lright =
-    ::protozero::proto_utils::FieldMetadata<
-      7,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      Ext4AllocateBlocksFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Lright kLright() { return {}; }
-  void set_lright(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Lright::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Goal =
-    ::protozero::proto_utils::FieldMetadata<
-      8,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      Ext4AllocateBlocksFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Goal kGoal() { return {}; }
-  void set_goal(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Goal::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Pleft =
-    ::protozero::proto_utils::FieldMetadata<
-      9,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      Ext4AllocateBlocksFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Pleft kPleft() { return {}; }
-  void set_pleft(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Pleft::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Pright =
-    ::protozero::proto_utils::FieldMetadata<
-      10,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      Ext4AllocateBlocksFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Pright kPright() { return {}; }
-  void set_pright(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Pright::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Flags =
-    ::protozero::proto_utils::FieldMetadata<
-      11,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      Ext4AllocateBlocksFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Flags kFlags() { return {}; }
-  void set_flags(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Flags::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-};
-
-class Ext4AllocDaBlocksFtraceEvent_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/4, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  Ext4AllocDaBlocksFtraceEvent_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit Ext4AllocDaBlocksFtraceEvent_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit Ext4AllocDaBlocksFtraceEvent_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_dev() const { return at<1>().valid(); }
-  uint64_t dev() const { return at<1>().as_uint64(); }
-  bool has_ino() const { return at<2>().valid(); }
-  uint64_t ino() const { return at<2>().as_uint64(); }
-  bool has_data_blocks() const { return at<3>().valid(); }
-  uint32_t data_blocks() const { return at<3>().as_uint32(); }
-  bool has_meta_blocks() const { return at<4>().valid(); }
-  uint32_t meta_blocks() const { return at<4>().as_uint32(); }
-};
-
-class Ext4AllocDaBlocksFtraceEvent : public ::protozero::Message {
- public:
-  using Decoder = Ext4AllocDaBlocksFtraceEvent_Decoder;
-  enum : int32_t {
-    kDevFieldNumber = 1,
-    kInoFieldNumber = 2,
-    kDataBlocksFieldNumber = 3,
-    kMetaBlocksFieldNumber = 4,
-  };
-
-  using FieldMetadata_Dev =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      Ext4AllocDaBlocksFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Dev kDev() { return {}; }
-  void set_dev(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Dev::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Ino =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      Ext4AllocDaBlocksFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Ino kIno() { return {}; }
-  void set_ino(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Ino::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_DataBlocks =
-    ::protozero::proto_utils::FieldMetadata<
-      3,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      Ext4AllocDaBlocksFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_DataBlocks kDataBlocks() { return {}; }
-  void set_data_blocks(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_DataBlocks::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_MetaBlocks =
-    ::protozero::proto_utils::FieldMetadata<
-      4,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      Ext4AllocDaBlocksFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_MetaBlocks kMetaBlocks() { return {}; }
-  void set_meta_blocks(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_MetaBlocks::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-};
-
-class Ext4SyncFileExitFtraceEvent_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/3, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  Ext4SyncFileExitFtraceEvent_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit Ext4SyncFileExitFtraceEvent_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit Ext4SyncFileExitFtraceEvent_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_dev() const { return at<1>().valid(); }
-  uint64_t dev() const { return at<1>().as_uint64(); }
-  bool has_ino() const { return at<2>().valid(); }
-  uint64_t ino() const { return at<2>().as_uint64(); }
-  bool has_ret() const { return at<3>().valid(); }
-  int32_t ret() const { return at<3>().as_int32(); }
-};
-
-class Ext4SyncFileExitFtraceEvent : public ::protozero::Message {
- public:
-  using Decoder = Ext4SyncFileExitFtraceEvent_Decoder;
-  enum : int32_t {
-    kDevFieldNumber = 1,
-    kInoFieldNumber = 2,
-    kRetFieldNumber = 3,
-  };
-
-  using FieldMetadata_Dev =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      Ext4SyncFileExitFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Dev kDev() { return {}; }
-  void set_dev(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Dev::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Ino =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      Ext4SyncFileExitFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Ino kIno() { return {}; }
-  void set_ino(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Ino::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Ret =
-    ::protozero::proto_utils::FieldMetadata<
-      3,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt32,
-      int32_t,
-      Ext4SyncFileExitFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Ret kRet() { return {}; }
-  void set_ret(int32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Ret::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt32>
-        ::Append(*this, field_id, value);
-  }
-};
-
-class Ext4SyncFileEnterFtraceEvent_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/4, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  Ext4SyncFileEnterFtraceEvent_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit Ext4SyncFileEnterFtraceEvent_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit Ext4SyncFileEnterFtraceEvent_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_dev() const { return at<1>().valid(); }
-  uint64_t dev() const { return at<1>().as_uint64(); }
-  bool has_ino() const { return at<2>().valid(); }
-  uint64_t ino() const { return at<2>().as_uint64(); }
-  bool has_parent() const { return at<3>().valid(); }
-  uint64_t parent() const { return at<3>().as_uint64(); }
-  bool has_datasync() const { return at<4>().valid(); }
-  int32_t datasync() const { return at<4>().as_int32(); }
-};
-
-class Ext4SyncFileEnterFtraceEvent : public ::protozero::Message {
- public:
-  using Decoder = Ext4SyncFileEnterFtraceEvent_Decoder;
-  enum : int32_t {
-    kDevFieldNumber = 1,
-    kInoFieldNumber = 2,
-    kParentFieldNumber = 3,
-    kDatasyncFieldNumber = 4,
-  };
-
-  using FieldMetadata_Dev =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      Ext4SyncFileEnterFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Dev kDev() { return {}; }
-  void set_dev(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Dev::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Ino =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      Ext4SyncFileEnterFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Ino kIno() { return {}; }
-  void set_ino(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Ino::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Parent =
-    ::protozero::proto_utils::FieldMetadata<
-      3,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      Ext4SyncFileEnterFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Parent kParent() { return {}; }
-  void set_parent(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Parent::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Datasync =
-    ::protozero::proto_utils::FieldMetadata<
-      4,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt32,
-      int32_t,
-      Ext4SyncFileEnterFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Datasync kDatasync() { return {}; }
-  void set_datasync(int32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Datasync::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt32>
-        ::Append(*this, field_id, value);
-  }
-};
-
-class Ext4DaWriteEndFtraceEvent_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/5, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  Ext4DaWriteEndFtraceEvent_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit Ext4DaWriteEndFtraceEvent_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit Ext4DaWriteEndFtraceEvent_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_dev() const { return at<1>().valid(); }
-  uint64_t dev() const { return at<1>().as_uint64(); }
-  bool has_ino() const { return at<2>().valid(); }
-  uint64_t ino() const { return at<2>().as_uint64(); }
-  bool has_pos() const { return at<3>().valid(); }
-  int64_t pos() const { return at<3>().as_int64(); }
-  bool has_len() const { return at<4>().valid(); }
-  uint32_t len() const { return at<4>().as_uint32(); }
-  bool has_copied() const { return at<5>().valid(); }
-  uint32_t copied() const { return at<5>().as_uint32(); }
-};
-
-class Ext4DaWriteEndFtraceEvent : public ::protozero::Message {
- public:
-  using Decoder = Ext4DaWriteEndFtraceEvent_Decoder;
-  enum : int32_t {
-    kDevFieldNumber = 1,
-    kInoFieldNumber = 2,
-    kPosFieldNumber = 3,
-    kLenFieldNumber = 4,
-    kCopiedFieldNumber = 5,
-  };
-
-  using FieldMetadata_Dev =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      Ext4DaWriteEndFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Dev kDev() { return {}; }
-  void set_dev(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Dev::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Ino =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      Ext4DaWriteEndFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Ino kIno() { return {}; }
-  void set_ino(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Ino::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Pos =
-    ::protozero::proto_utils::FieldMetadata<
-      3,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt64,
-      int64_t,
-      Ext4DaWriteEndFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Pos kPos() { return {}; }
-  void set_pos(int64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Pos::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Len =
-    ::protozero::proto_utils::FieldMetadata<
-      4,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      Ext4DaWriteEndFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Len kLen() { return {}; }
-  void set_len(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Len::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Copied =
-    ::protozero::proto_utils::FieldMetadata<
-      5,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      Ext4DaWriteEndFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Copied kCopied() { return {}; }
-  void set_copied(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Copied::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-};
-
-class Ext4DaWriteBeginFtraceEvent_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/5, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  Ext4DaWriteBeginFtraceEvent_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit Ext4DaWriteBeginFtraceEvent_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit Ext4DaWriteBeginFtraceEvent_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_dev() const { return at<1>().valid(); }
-  uint64_t dev() const { return at<1>().as_uint64(); }
-  bool has_ino() const { return at<2>().valid(); }
-  uint64_t ino() const { return at<2>().as_uint64(); }
-  bool has_pos() const { return at<3>().valid(); }
-  int64_t pos() const { return at<3>().as_int64(); }
-  bool has_len() const { return at<4>().valid(); }
-  uint32_t len() const { return at<4>().as_uint32(); }
-  bool has_flags() const { return at<5>().valid(); }
-  uint32_t flags() const { return at<5>().as_uint32(); }
-};
-
-class Ext4DaWriteBeginFtraceEvent : public ::protozero::Message {
- public:
-  using Decoder = Ext4DaWriteBeginFtraceEvent_Decoder;
-  enum : int32_t {
-    kDevFieldNumber = 1,
-    kInoFieldNumber = 2,
-    kPosFieldNumber = 3,
-    kLenFieldNumber = 4,
-    kFlagsFieldNumber = 5,
-  };
-
-  using FieldMetadata_Dev =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      Ext4DaWriteBeginFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Dev kDev() { return {}; }
-  void set_dev(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Dev::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Ino =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      Ext4DaWriteBeginFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Ino kIno() { return {}; }
-  void set_ino(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Ino::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Pos =
-    ::protozero::proto_utils::FieldMetadata<
-      3,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt64,
-      int64_t,
-      Ext4DaWriteBeginFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Pos kPos() { return {}; }
-  void set_pos(int64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Pos::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Len =
-    ::protozero::proto_utils::FieldMetadata<
-      4,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      Ext4DaWriteBeginFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Len kLen() { return {}; }
-  void set_len(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Len::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Flags =
-    ::protozero::proto_utils::FieldMetadata<
-      5,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      Ext4DaWriteBeginFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Flags kFlags() { return {}; }
-  void set_flags(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Flags::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-};
-
-} // Namespace.
-} // Namespace.
-} // Namespace.
-#endif  // Include guard.
-// gen_amalgamated begin header: gen/protos/perfetto/trace/ftrace/f2fs.pbzero.h
-// Autogenerated by the ProtoZero compiler plugin. DO NOT EDIT.
-
-#ifndef PERFETTO_PROTOS_PROTOS_PERFETTO_TRACE_FTRACE_F2FS_PROTO_H_
-#define PERFETTO_PROTOS_PROTOS_PERFETTO_TRACE_FTRACE_F2FS_PROTO_H_
-
-#include <stddef.h>
-#include <stdint.h>
-
-// gen_amalgamated expanded: #include "perfetto/protozero/field_writer.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/message.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/packed_repeated_fields.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/proto_decoder.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/proto_utils.h"
-
-namespace perfetto {
-namespace protos {
-namespace pbzero {
-
-
-class F2fsWriteEndFtraceEvent_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/5, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  F2fsWriteEndFtraceEvent_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit F2fsWriteEndFtraceEvent_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit F2fsWriteEndFtraceEvent_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_dev() const { return at<1>().valid(); }
-  uint64_t dev() const { return at<1>().as_uint64(); }
-  bool has_ino() const { return at<2>().valid(); }
-  uint64_t ino() const { return at<2>().as_uint64(); }
-  bool has_pos() const { return at<3>().valid(); }
-  int64_t pos() const { return at<3>().as_int64(); }
-  bool has_len() const { return at<4>().valid(); }
-  uint32_t len() const { return at<4>().as_uint32(); }
-  bool has_copied() const { return at<5>().valid(); }
-  uint32_t copied() const { return at<5>().as_uint32(); }
-};
-
-class F2fsWriteEndFtraceEvent : public ::protozero::Message {
- public:
-  using Decoder = F2fsWriteEndFtraceEvent_Decoder;
-  enum : int32_t {
-    kDevFieldNumber = 1,
-    kInoFieldNumber = 2,
-    kPosFieldNumber = 3,
-    kLenFieldNumber = 4,
-    kCopiedFieldNumber = 5,
-  };
-
-  using FieldMetadata_Dev =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      F2fsWriteEndFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Dev kDev() { return {}; }
-  void set_dev(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Dev::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Ino =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      F2fsWriteEndFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Ino kIno() { return {}; }
-  void set_ino(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Ino::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Pos =
-    ::protozero::proto_utils::FieldMetadata<
-      3,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt64,
-      int64_t,
-      F2fsWriteEndFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Pos kPos() { return {}; }
-  void set_pos(int64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Pos::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Len =
-    ::protozero::proto_utils::FieldMetadata<
-      4,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      F2fsWriteEndFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Len kLen() { return {}; }
-  void set_len(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Len::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Copied =
-    ::protozero::proto_utils::FieldMetadata<
-      5,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      F2fsWriteEndFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Copied kCopied() { return {}; }
-  void set_copied(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Copied::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-};
-
-class F2fsWriteCheckpointFtraceEvent_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/3, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  F2fsWriteCheckpointFtraceEvent_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit F2fsWriteCheckpointFtraceEvent_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit F2fsWriteCheckpointFtraceEvent_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_dev() const { return at<1>().valid(); }
-  uint64_t dev() const { return at<1>().as_uint64(); }
-  bool has_is_umount() const { return at<2>().valid(); }
-  uint32_t is_umount() const { return at<2>().as_uint32(); }
-  bool has_msg() const { return at<3>().valid(); }
-  ::protozero::ConstChars msg() const { return at<3>().as_string(); }
-};
-
-class F2fsWriteCheckpointFtraceEvent : public ::protozero::Message {
- public:
-  using Decoder = F2fsWriteCheckpointFtraceEvent_Decoder;
-  enum : int32_t {
-    kDevFieldNumber = 1,
-    kIsUmountFieldNumber = 2,
-    kMsgFieldNumber = 3,
-  };
-
-  using FieldMetadata_Dev =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      F2fsWriteCheckpointFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Dev kDev() { return {}; }
-  void set_dev(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Dev::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_IsUmount =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      F2fsWriteCheckpointFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_IsUmount kIsUmount() { return {}; }
-  void set_is_umount(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_IsUmount::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Msg =
-    ::protozero::proto_utils::FieldMetadata<
-      3,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kString,
-      std::string,
-      F2fsWriteCheckpointFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Msg kMsg() { return {}; }
-  void set_msg(const char* data, size_t size) {
-    AppendBytes(FieldMetadata_Msg::kFieldId, data, size);
-  }
-  void set_msg(std::string value) {
-    static constexpr uint32_t field_id = FieldMetadata_Msg::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kString>
-        ::Append(*this, field_id, value);
-  }
-};
-
-class F2fsWriteBeginFtraceEvent_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/5, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  F2fsWriteBeginFtraceEvent_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit F2fsWriteBeginFtraceEvent_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit F2fsWriteBeginFtraceEvent_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_dev() const { return at<1>().valid(); }
-  uint64_t dev() const { return at<1>().as_uint64(); }
-  bool has_ino() const { return at<2>().valid(); }
-  uint64_t ino() const { return at<2>().as_uint64(); }
-  bool has_pos() const { return at<3>().valid(); }
-  int64_t pos() const { return at<3>().as_int64(); }
-  bool has_len() const { return at<4>().valid(); }
-  uint32_t len() const { return at<4>().as_uint32(); }
-  bool has_flags() const { return at<5>().valid(); }
-  uint32_t flags() const { return at<5>().as_uint32(); }
-};
-
-class F2fsWriteBeginFtraceEvent : public ::protozero::Message {
- public:
-  using Decoder = F2fsWriteBeginFtraceEvent_Decoder;
-  enum : int32_t {
-    kDevFieldNumber = 1,
-    kInoFieldNumber = 2,
-    kPosFieldNumber = 3,
-    kLenFieldNumber = 4,
-    kFlagsFieldNumber = 5,
-  };
-
-  using FieldMetadata_Dev =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      F2fsWriteBeginFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Dev kDev() { return {}; }
-  void set_dev(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Dev::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Ino =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      F2fsWriteBeginFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Ino kIno() { return {}; }
-  void set_ino(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Ino::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Pos =
-    ::protozero::proto_utils::FieldMetadata<
-      3,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt64,
-      int64_t,
-      F2fsWriteBeginFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Pos kPos() { return {}; }
-  void set_pos(int64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Pos::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Len =
-    ::protozero::proto_utils::FieldMetadata<
-      4,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      F2fsWriteBeginFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Len kLen() { return {}; }
-  void set_len(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Len::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Flags =
-    ::protozero::proto_utils::FieldMetadata<
-      5,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      F2fsWriteBeginFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Flags kFlags() { return {}; }
-  void set_flags(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Flags::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-};
-
-class F2fsVmPageMkwriteFtraceEvent_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/6, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  F2fsVmPageMkwriteFtraceEvent_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit F2fsVmPageMkwriteFtraceEvent_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit F2fsVmPageMkwriteFtraceEvent_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_dev() const { return at<1>().valid(); }
-  uint64_t dev() const { return at<1>().as_uint64(); }
-  bool has_ino() const { return at<2>().valid(); }
-  uint64_t ino() const { return at<2>().as_uint64(); }
-  bool has_type() const { return at<3>().valid(); }
-  int32_t type() const { return at<3>().as_int32(); }
-  bool has_dir() const { return at<4>().valid(); }
-  int32_t dir() const { return at<4>().as_int32(); }
-  bool has_index() const { return at<5>().valid(); }
-  uint64_t index() const { return at<5>().as_uint64(); }
-  bool has_dirty() const { return at<6>().valid(); }
-  int32_t dirty() const { return at<6>().as_int32(); }
-};
-
-class F2fsVmPageMkwriteFtraceEvent : public ::protozero::Message {
- public:
-  using Decoder = F2fsVmPageMkwriteFtraceEvent_Decoder;
-  enum : int32_t {
-    kDevFieldNumber = 1,
-    kInoFieldNumber = 2,
-    kTypeFieldNumber = 3,
-    kDirFieldNumber = 4,
-    kIndexFieldNumber = 5,
-    kDirtyFieldNumber = 6,
-  };
-
-  using FieldMetadata_Dev =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      F2fsVmPageMkwriteFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Dev kDev() { return {}; }
-  void set_dev(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Dev::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Ino =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      F2fsVmPageMkwriteFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Ino kIno() { return {}; }
-  void set_ino(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Ino::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Type =
-    ::protozero::proto_utils::FieldMetadata<
-      3,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt32,
-      int32_t,
-      F2fsVmPageMkwriteFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Type kType() { return {}; }
-  void set_type(int32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Type::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Dir =
-    ::protozero::proto_utils::FieldMetadata<
-      4,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt32,
-      int32_t,
-      F2fsVmPageMkwriteFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Dir kDir() { return {}; }
-  void set_dir(int32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Dir::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Index =
-    ::protozero::proto_utils::FieldMetadata<
-      5,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      F2fsVmPageMkwriteFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Index kIndex() { return {}; }
-  void set_index(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Index::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Dirty =
-    ::protozero::proto_utils::FieldMetadata<
-      6,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt32,
-      int32_t,
-      F2fsVmPageMkwriteFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Dirty kDirty() { return {}; }
-  void set_dirty(int32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Dirty::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt32>
-        ::Append(*this, field_id, value);
-  }
-};
-
-class F2fsUnlinkExitFtraceEvent_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/3, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  F2fsUnlinkExitFtraceEvent_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit F2fsUnlinkExitFtraceEvent_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit F2fsUnlinkExitFtraceEvent_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_dev() const { return at<1>().valid(); }
-  uint64_t dev() const { return at<1>().as_uint64(); }
-  bool has_ino() const { return at<2>().valid(); }
-  uint64_t ino() const { return at<2>().as_uint64(); }
-  bool has_ret() const { return at<3>().valid(); }
-  int32_t ret() const { return at<3>().as_int32(); }
-};
-
-class F2fsUnlinkExitFtraceEvent : public ::protozero::Message {
- public:
-  using Decoder = F2fsUnlinkExitFtraceEvent_Decoder;
-  enum : int32_t {
-    kDevFieldNumber = 1,
-    kInoFieldNumber = 2,
-    kRetFieldNumber = 3,
-  };
-
-  using FieldMetadata_Dev =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      F2fsUnlinkExitFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Dev kDev() { return {}; }
-  void set_dev(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Dev::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Ino =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      F2fsUnlinkExitFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Ino kIno() { return {}; }
-  void set_ino(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Ino::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Ret =
-    ::protozero::proto_utils::FieldMetadata<
-      3,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt32,
-      int32_t,
-      F2fsUnlinkExitFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Ret kRet() { return {}; }
-  void set_ret(int32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Ret::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt32>
-        ::Append(*this, field_id, value);
-  }
-};
-
-class F2fsUnlinkEnterFtraceEvent_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/5, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  F2fsUnlinkEnterFtraceEvent_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit F2fsUnlinkEnterFtraceEvent_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit F2fsUnlinkEnterFtraceEvent_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_dev() const { return at<1>().valid(); }
-  uint64_t dev() const { return at<1>().as_uint64(); }
-  bool has_ino() const { return at<2>().valid(); }
-  uint64_t ino() const { return at<2>().as_uint64(); }
-  bool has_size() const { return at<3>().valid(); }
-  int64_t size() const { return at<3>().as_int64(); }
-  bool has_blocks() const { return at<4>().valid(); }
-  uint64_t blocks() const { return at<4>().as_uint64(); }
-  bool has_name() const { return at<5>().valid(); }
-  ::protozero::ConstChars name() const { return at<5>().as_string(); }
-};
-
-class F2fsUnlinkEnterFtraceEvent : public ::protozero::Message {
- public:
-  using Decoder = F2fsUnlinkEnterFtraceEvent_Decoder;
-  enum : int32_t {
-    kDevFieldNumber = 1,
-    kInoFieldNumber = 2,
-    kSizeFieldNumber = 3,
-    kBlocksFieldNumber = 4,
-    kNameFieldNumber = 5,
-  };
-
-  using FieldMetadata_Dev =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      F2fsUnlinkEnterFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Dev kDev() { return {}; }
-  void set_dev(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Dev::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Ino =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      F2fsUnlinkEnterFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Ino kIno() { return {}; }
-  void set_ino(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Ino::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Size =
-    ::protozero::proto_utils::FieldMetadata<
-      3,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt64,
-      int64_t,
-      F2fsUnlinkEnterFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Size kSize() { return {}; }
-  void set_size(int64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Size::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Blocks =
-    ::protozero::proto_utils::FieldMetadata<
-      4,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      F2fsUnlinkEnterFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Blocks kBlocks() { return {}; }
-  void set_blocks(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Blocks::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Name =
-    ::protozero::proto_utils::FieldMetadata<
-      5,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kString,
-      std::string,
-      F2fsUnlinkEnterFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Name kName() { return {}; }
-  void set_name(const char* data, size_t size) {
-    AppendBytes(FieldMetadata_Name::kFieldId, data, size);
-  }
-  void set_name(std::string value) {
-    static constexpr uint32_t field_id = FieldMetadata_Name::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kString>
-        ::Append(*this, field_id, value);
-  }
-};
-
-class F2fsTruncatePartialNodesFtraceEvent_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/5, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  F2fsTruncatePartialNodesFtraceEvent_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit F2fsTruncatePartialNodesFtraceEvent_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit F2fsTruncatePartialNodesFtraceEvent_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_dev() const { return at<1>().valid(); }
-  uint64_t dev() const { return at<1>().as_uint64(); }
-  bool has_ino() const { return at<2>().valid(); }
-  uint64_t ino() const { return at<2>().as_uint64(); }
-  bool has_nid() const { return at<3>().valid(); }
-  uint32_t nid() const { return at<3>().as_uint32(); }
-  bool has_depth() const { return at<4>().valid(); }
-  int32_t depth() const { return at<4>().as_int32(); }
-  bool has_err() const { return at<5>().valid(); }
-  int32_t err() const { return at<5>().as_int32(); }
-};
-
-class F2fsTruncatePartialNodesFtraceEvent : public ::protozero::Message {
- public:
-  using Decoder = F2fsTruncatePartialNodesFtraceEvent_Decoder;
-  enum : int32_t {
-    kDevFieldNumber = 1,
-    kInoFieldNumber = 2,
-    kNidFieldNumber = 3,
-    kDepthFieldNumber = 4,
-    kErrFieldNumber = 5,
-  };
-
-  using FieldMetadata_Dev =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      F2fsTruncatePartialNodesFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Dev kDev() { return {}; }
-  void set_dev(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Dev::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Ino =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      F2fsTruncatePartialNodesFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Ino kIno() { return {}; }
-  void set_ino(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Ino::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Nid =
-    ::protozero::proto_utils::FieldMetadata<
-      3,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      F2fsTruncatePartialNodesFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Nid kNid() { return {}; }
-  void set_nid(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Nid::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Depth =
-    ::protozero::proto_utils::FieldMetadata<
-      4,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt32,
-      int32_t,
-      F2fsTruncatePartialNodesFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Depth kDepth() { return {}; }
-  void set_depth(int32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Depth::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Err =
-    ::protozero::proto_utils::FieldMetadata<
-      5,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt32,
-      int32_t,
-      F2fsTruncatePartialNodesFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Err kErr() { return {}; }
-  void set_err(int32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Err::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt32>
-        ::Append(*this, field_id, value);
-  }
-};
-
-class F2fsTruncateNodesExitFtraceEvent_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/3, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  F2fsTruncateNodesExitFtraceEvent_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit F2fsTruncateNodesExitFtraceEvent_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit F2fsTruncateNodesExitFtraceEvent_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_dev() const { return at<1>().valid(); }
-  uint64_t dev() const { return at<1>().as_uint64(); }
-  bool has_ino() const { return at<2>().valid(); }
-  uint64_t ino() const { return at<2>().as_uint64(); }
-  bool has_ret() const { return at<3>().valid(); }
-  int32_t ret() const { return at<3>().as_int32(); }
-};
-
-class F2fsTruncateNodesExitFtraceEvent : public ::protozero::Message {
- public:
-  using Decoder = F2fsTruncateNodesExitFtraceEvent_Decoder;
-  enum : int32_t {
-    kDevFieldNumber = 1,
-    kInoFieldNumber = 2,
-    kRetFieldNumber = 3,
-  };
-
-  using FieldMetadata_Dev =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      F2fsTruncateNodesExitFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Dev kDev() { return {}; }
-  void set_dev(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Dev::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Ino =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      F2fsTruncateNodesExitFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Ino kIno() { return {}; }
-  void set_ino(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Ino::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Ret =
-    ::protozero::proto_utils::FieldMetadata<
-      3,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt32,
-      int32_t,
-      F2fsTruncateNodesExitFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Ret kRet() { return {}; }
-  void set_ret(int32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Ret::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt32>
-        ::Append(*this, field_id, value);
-  }
-};
-
-class F2fsTruncateNodesEnterFtraceEvent_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/4, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  F2fsTruncateNodesEnterFtraceEvent_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit F2fsTruncateNodesEnterFtraceEvent_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit F2fsTruncateNodesEnterFtraceEvent_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_dev() const { return at<1>().valid(); }
-  uint64_t dev() const { return at<1>().as_uint64(); }
-  bool has_ino() const { return at<2>().valid(); }
-  uint64_t ino() const { return at<2>().as_uint64(); }
-  bool has_nid() const { return at<3>().valid(); }
-  uint32_t nid() const { return at<3>().as_uint32(); }
-  bool has_blk_addr() const { return at<4>().valid(); }
-  uint32_t blk_addr() const { return at<4>().as_uint32(); }
-};
-
-class F2fsTruncateNodesEnterFtraceEvent : public ::protozero::Message {
- public:
-  using Decoder = F2fsTruncateNodesEnterFtraceEvent_Decoder;
-  enum : int32_t {
-    kDevFieldNumber = 1,
-    kInoFieldNumber = 2,
-    kNidFieldNumber = 3,
-    kBlkAddrFieldNumber = 4,
-  };
-
-  using FieldMetadata_Dev =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      F2fsTruncateNodesEnterFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Dev kDev() { return {}; }
-  void set_dev(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Dev::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Ino =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      F2fsTruncateNodesEnterFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Ino kIno() { return {}; }
-  void set_ino(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Ino::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Nid =
-    ::protozero::proto_utils::FieldMetadata<
-      3,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      F2fsTruncateNodesEnterFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Nid kNid() { return {}; }
-  void set_nid(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Nid::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_BlkAddr =
-    ::protozero::proto_utils::FieldMetadata<
-      4,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      F2fsTruncateNodesEnterFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_BlkAddr kBlkAddr() { return {}; }
-  void set_blk_addr(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_BlkAddr::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-};
-
-class F2fsTruncateNodeFtraceEvent_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/4, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  F2fsTruncateNodeFtraceEvent_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit F2fsTruncateNodeFtraceEvent_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit F2fsTruncateNodeFtraceEvent_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_dev() const { return at<1>().valid(); }
-  uint64_t dev() const { return at<1>().as_uint64(); }
-  bool has_ino() const { return at<2>().valid(); }
-  uint64_t ino() const { return at<2>().as_uint64(); }
-  bool has_nid() const { return at<3>().valid(); }
-  uint32_t nid() const { return at<3>().as_uint32(); }
-  bool has_blk_addr() const { return at<4>().valid(); }
-  uint32_t blk_addr() const { return at<4>().as_uint32(); }
-};
-
-class F2fsTruncateNodeFtraceEvent : public ::protozero::Message {
- public:
-  using Decoder = F2fsTruncateNodeFtraceEvent_Decoder;
-  enum : int32_t {
-    kDevFieldNumber = 1,
-    kInoFieldNumber = 2,
-    kNidFieldNumber = 3,
-    kBlkAddrFieldNumber = 4,
-  };
-
-  using FieldMetadata_Dev =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      F2fsTruncateNodeFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Dev kDev() { return {}; }
-  void set_dev(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Dev::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Ino =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      F2fsTruncateNodeFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Ino kIno() { return {}; }
-  void set_ino(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Ino::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Nid =
-    ::protozero::proto_utils::FieldMetadata<
-      3,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      F2fsTruncateNodeFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Nid kNid() { return {}; }
-  void set_nid(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Nid::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_BlkAddr =
-    ::protozero::proto_utils::FieldMetadata<
-      4,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      F2fsTruncateNodeFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_BlkAddr kBlkAddr() { return {}; }
-  void set_blk_addr(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_BlkAddr::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-};
-
-class F2fsTruncateInodeBlocksExitFtraceEvent_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/3, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  F2fsTruncateInodeBlocksExitFtraceEvent_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit F2fsTruncateInodeBlocksExitFtraceEvent_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit F2fsTruncateInodeBlocksExitFtraceEvent_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_dev() const { return at<1>().valid(); }
-  uint64_t dev() const { return at<1>().as_uint64(); }
-  bool has_ino() const { return at<2>().valid(); }
-  uint64_t ino() const { return at<2>().as_uint64(); }
-  bool has_ret() const { return at<3>().valid(); }
-  int32_t ret() const { return at<3>().as_int32(); }
-};
-
-class F2fsTruncateInodeBlocksExitFtraceEvent : public ::protozero::Message {
- public:
-  using Decoder = F2fsTruncateInodeBlocksExitFtraceEvent_Decoder;
-  enum : int32_t {
-    kDevFieldNumber = 1,
-    kInoFieldNumber = 2,
-    kRetFieldNumber = 3,
-  };
-
-  using FieldMetadata_Dev =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      F2fsTruncateInodeBlocksExitFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Dev kDev() { return {}; }
-  void set_dev(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Dev::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Ino =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      F2fsTruncateInodeBlocksExitFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Ino kIno() { return {}; }
-  void set_ino(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Ino::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Ret =
-    ::protozero::proto_utils::FieldMetadata<
-      3,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt32,
-      int32_t,
-      F2fsTruncateInodeBlocksExitFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Ret kRet() { return {}; }
-  void set_ret(int32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Ret::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt32>
-        ::Append(*this, field_id, value);
-  }
-};
-
-class F2fsTruncateInodeBlocksEnterFtraceEvent_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/5, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  F2fsTruncateInodeBlocksEnterFtraceEvent_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit F2fsTruncateInodeBlocksEnterFtraceEvent_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit F2fsTruncateInodeBlocksEnterFtraceEvent_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_dev() const { return at<1>().valid(); }
-  uint64_t dev() const { return at<1>().as_uint64(); }
-  bool has_ino() const { return at<2>().valid(); }
-  uint64_t ino() const { return at<2>().as_uint64(); }
-  bool has_size() const { return at<3>().valid(); }
-  int64_t size() const { return at<3>().as_int64(); }
-  bool has_blocks() const { return at<4>().valid(); }
-  uint64_t blocks() const { return at<4>().as_uint64(); }
-  bool has_from() const { return at<5>().valid(); }
-  uint64_t from() const { return at<5>().as_uint64(); }
-};
-
-class F2fsTruncateInodeBlocksEnterFtraceEvent : public ::protozero::Message {
- public:
-  using Decoder = F2fsTruncateInodeBlocksEnterFtraceEvent_Decoder;
-  enum : int32_t {
-    kDevFieldNumber = 1,
-    kInoFieldNumber = 2,
-    kSizeFieldNumber = 3,
-    kBlocksFieldNumber = 4,
-    kFromFieldNumber = 5,
-  };
-
-  using FieldMetadata_Dev =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      F2fsTruncateInodeBlocksEnterFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Dev kDev() { return {}; }
-  void set_dev(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Dev::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Ino =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      F2fsTruncateInodeBlocksEnterFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Ino kIno() { return {}; }
-  void set_ino(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Ino::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Size =
-    ::protozero::proto_utils::FieldMetadata<
-      3,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt64,
-      int64_t,
-      F2fsTruncateInodeBlocksEnterFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Size kSize() { return {}; }
-  void set_size(int64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Size::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Blocks =
-    ::protozero::proto_utils::FieldMetadata<
-      4,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      F2fsTruncateInodeBlocksEnterFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Blocks kBlocks() { return {}; }
-  void set_blocks(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Blocks::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_From =
-    ::protozero::proto_utils::FieldMetadata<
-      5,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      F2fsTruncateInodeBlocksEnterFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_From kFrom() { return {}; }
-  void set_from(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_From::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-};
-
-class F2fsTruncateDataBlocksRangeFtraceEvent_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/5, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  F2fsTruncateDataBlocksRangeFtraceEvent_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit F2fsTruncateDataBlocksRangeFtraceEvent_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit F2fsTruncateDataBlocksRangeFtraceEvent_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_dev() const { return at<1>().valid(); }
-  uint64_t dev() const { return at<1>().as_uint64(); }
-  bool has_ino() const { return at<2>().valid(); }
-  uint64_t ino() const { return at<2>().as_uint64(); }
-  bool has_nid() const { return at<3>().valid(); }
-  uint32_t nid() const { return at<3>().as_uint32(); }
-  bool has_ofs() const { return at<4>().valid(); }
-  uint32_t ofs() const { return at<4>().as_uint32(); }
-  bool has_free() const { return at<5>().valid(); }
-  int32_t free() const { return at<5>().as_int32(); }
-};
-
-class F2fsTruncateDataBlocksRangeFtraceEvent : public ::protozero::Message {
- public:
-  using Decoder = F2fsTruncateDataBlocksRangeFtraceEvent_Decoder;
-  enum : int32_t {
-    kDevFieldNumber = 1,
-    kInoFieldNumber = 2,
-    kNidFieldNumber = 3,
-    kOfsFieldNumber = 4,
-    kFreeFieldNumber = 5,
-  };
-
-  using FieldMetadata_Dev =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      F2fsTruncateDataBlocksRangeFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Dev kDev() { return {}; }
-  void set_dev(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Dev::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Ino =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      F2fsTruncateDataBlocksRangeFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Ino kIno() { return {}; }
-  void set_ino(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Ino::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Nid =
-    ::protozero::proto_utils::FieldMetadata<
-      3,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      F2fsTruncateDataBlocksRangeFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Nid kNid() { return {}; }
-  void set_nid(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Nid::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Ofs =
-    ::protozero::proto_utils::FieldMetadata<
-      4,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      F2fsTruncateDataBlocksRangeFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Ofs kOfs() { return {}; }
-  void set_ofs(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Ofs::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Free =
-    ::protozero::proto_utils::FieldMetadata<
-      5,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt32,
-      int32_t,
-      F2fsTruncateDataBlocksRangeFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Free kFree() { return {}; }
-  void set_free(int32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Free::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt32>
-        ::Append(*this, field_id, value);
-  }
-};
-
-class F2fsTruncateBlocksExitFtraceEvent_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/3, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  F2fsTruncateBlocksExitFtraceEvent_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit F2fsTruncateBlocksExitFtraceEvent_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit F2fsTruncateBlocksExitFtraceEvent_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_dev() const { return at<1>().valid(); }
-  uint64_t dev() const { return at<1>().as_uint64(); }
-  bool has_ino() const { return at<2>().valid(); }
-  uint64_t ino() const { return at<2>().as_uint64(); }
-  bool has_ret() const { return at<3>().valid(); }
-  int32_t ret() const { return at<3>().as_int32(); }
-};
-
-class F2fsTruncateBlocksExitFtraceEvent : public ::protozero::Message {
- public:
-  using Decoder = F2fsTruncateBlocksExitFtraceEvent_Decoder;
-  enum : int32_t {
-    kDevFieldNumber = 1,
-    kInoFieldNumber = 2,
-    kRetFieldNumber = 3,
-  };
-
-  using FieldMetadata_Dev =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      F2fsTruncateBlocksExitFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Dev kDev() { return {}; }
-  void set_dev(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Dev::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Ino =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      F2fsTruncateBlocksExitFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Ino kIno() { return {}; }
-  void set_ino(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Ino::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Ret =
-    ::protozero::proto_utils::FieldMetadata<
-      3,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt32,
-      int32_t,
-      F2fsTruncateBlocksExitFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Ret kRet() { return {}; }
-  void set_ret(int32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Ret::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt32>
-        ::Append(*this, field_id, value);
-  }
-};
-
-class F2fsTruncateBlocksEnterFtraceEvent_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/5, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  F2fsTruncateBlocksEnterFtraceEvent_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit F2fsTruncateBlocksEnterFtraceEvent_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit F2fsTruncateBlocksEnterFtraceEvent_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_dev() const { return at<1>().valid(); }
-  uint64_t dev() const { return at<1>().as_uint64(); }
-  bool has_ino() const { return at<2>().valid(); }
-  uint64_t ino() const { return at<2>().as_uint64(); }
-  bool has_size() const { return at<3>().valid(); }
-  int64_t size() const { return at<3>().as_int64(); }
-  bool has_blocks() const { return at<4>().valid(); }
-  uint64_t blocks() const { return at<4>().as_uint64(); }
-  bool has_from() const { return at<5>().valid(); }
-  uint64_t from() const { return at<5>().as_uint64(); }
-};
-
-class F2fsTruncateBlocksEnterFtraceEvent : public ::protozero::Message {
- public:
-  using Decoder = F2fsTruncateBlocksEnterFtraceEvent_Decoder;
-  enum : int32_t {
-    kDevFieldNumber = 1,
-    kInoFieldNumber = 2,
-    kSizeFieldNumber = 3,
-    kBlocksFieldNumber = 4,
-    kFromFieldNumber = 5,
-  };
-
-  using FieldMetadata_Dev =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      F2fsTruncateBlocksEnterFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Dev kDev() { return {}; }
-  void set_dev(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Dev::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Ino =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      F2fsTruncateBlocksEnterFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Ino kIno() { return {}; }
-  void set_ino(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Ino::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Size =
-    ::protozero::proto_utils::FieldMetadata<
-      3,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt64,
-      int64_t,
-      F2fsTruncateBlocksEnterFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Size kSize() { return {}; }
-  void set_size(int64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Size::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Blocks =
-    ::protozero::proto_utils::FieldMetadata<
-      4,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      F2fsTruncateBlocksEnterFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Blocks kBlocks() { return {}; }
-  void set_blocks(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Blocks::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_From =
-    ::protozero::proto_utils::FieldMetadata<
-      5,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      F2fsTruncateBlocksEnterFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_From kFrom() { return {}; }
-  void set_from(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_From::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-};
-
-class F2fsTruncateFtraceEvent_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/8, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  F2fsTruncateFtraceEvent_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit F2fsTruncateFtraceEvent_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit F2fsTruncateFtraceEvent_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_dev() const { return at<1>().valid(); }
-  uint64_t dev() const { return at<1>().as_uint64(); }
-  bool has_ino() const { return at<2>().valid(); }
-  uint64_t ino() const { return at<2>().as_uint64(); }
-  bool has_pino() const { return at<3>().valid(); }
-  uint64_t pino() const { return at<3>().as_uint64(); }
-  bool has_mode() const { return at<4>().valid(); }
-  uint32_t mode() const { return at<4>().as_uint32(); }
-  bool has_size() const { return at<5>().valid(); }
-  int64_t size() const { return at<5>().as_int64(); }
-  bool has_nlink() const { return at<6>().valid(); }
-  uint32_t nlink() const { return at<6>().as_uint32(); }
-  bool has_blocks() const { return at<7>().valid(); }
-  uint64_t blocks() const { return at<7>().as_uint64(); }
-  bool has_advise() const { return at<8>().valid(); }
-  uint32_t advise() const { return at<8>().as_uint32(); }
-};
-
-class F2fsTruncateFtraceEvent : public ::protozero::Message {
- public:
-  using Decoder = F2fsTruncateFtraceEvent_Decoder;
-  enum : int32_t {
-    kDevFieldNumber = 1,
-    kInoFieldNumber = 2,
-    kPinoFieldNumber = 3,
-    kModeFieldNumber = 4,
-    kSizeFieldNumber = 5,
-    kNlinkFieldNumber = 6,
-    kBlocksFieldNumber = 7,
-    kAdviseFieldNumber = 8,
-  };
-
-  using FieldMetadata_Dev =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      F2fsTruncateFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Dev kDev() { return {}; }
-  void set_dev(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Dev::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Ino =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      F2fsTruncateFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Ino kIno() { return {}; }
-  void set_ino(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Ino::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Pino =
-    ::protozero::proto_utils::FieldMetadata<
-      3,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      F2fsTruncateFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Pino kPino() { return {}; }
-  void set_pino(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Pino::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Mode =
-    ::protozero::proto_utils::FieldMetadata<
-      4,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      F2fsTruncateFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Mode kMode() { return {}; }
-  void set_mode(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Mode::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Size =
-    ::protozero::proto_utils::FieldMetadata<
-      5,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt64,
-      int64_t,
-      F2fsTruncateFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Size kSize() { return {}; }
-  void set_size(int64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Size::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Nlink =
-    ::protozero::proto_utils::FieldMetadata<
-      6,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      F2fsTruncateFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Nlink kNlink() { return {}; }
-  void set_nlink(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Nlink::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Blocks =
-    ::protozero::proto_utils::FieldMetadata<
-      7,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      F2fsTruncateFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Blocks kBlocks() { return {}; }
-  void set_blocks(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Blocks::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Advise =
-    ::protozero::proto_utils::FieldMetadata<
-      8,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      F2fsTruncateFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Advise kAdvise() { return {}; }
-  void set_advise(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Advise::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-};
-
-class F2fsSyncFsFtraceEvent_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/3, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  F2fsSyncFsFtraceEvent_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit F2fsSyncFsFtraceEvent_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit F2fsSyncFsFtraceEvent_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_dev() const { return at<1>().valid(); }
-  uint64_t dev() const { return at<1>().as_uint64(); }
-  bool has_dirty() const { return at<2>().valid(); }
-  int32_t dirty() const { return at<2>().as_int32(); }
-  bool has_wait() const { return at<3>().valid(); }
-  int32_t wait() const { return at<3>().as_int32(); }
-};
-
-class F2fsSyncFsFtraceEvent : public ::protozero::Message {
- public:
-  using Decoder = F2fsSyncFsFtraceEvent_Decoder;
-  enum : int32_t {
-    kDevFieldNumber = 1,
-    kDirtyFieldNumber = 2,
-    kWaitFieldNumber = 3,
-  };
-
-  using FieldMetadata_Dev =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      F2fsSyncFsFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Dev kDev() { return {}; }
-  void set_dev(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Dev::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Dirty =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt32,
-      int32_t,
-      F2fsSyncFsFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Dirty kDirty() { return {}; }
-  void set_dirty(int32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Dirty::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Wait =
-    ::protozero::proto_utils::FieldMetadata<
-      3,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt32,
-      int32_t,
-      F2fsSyncFsFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Wait kWait() { return {}; }
-  void set_wait(int32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Wait::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt32>
-        ::Append(*this, field_id, value);
-  }
-};
-
-class F2fsSyncFileExitFtraceEvent_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/5, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  F2fsSyncFileExitFtraceEvent_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit F2fsSyncFileExitFtraceEvent_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit F2fsSyncFileExitFtraceEvent_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_dev() const { return at<1>().valid(); }
-  uint64_t dev() const { return at<1>().as_uint64(); }
-  bool has_ino() const { return at<2>().valid(); }
-  uint64_t ino() const { return at<2>().as_uint64(); }
-  bool has_need_cp() const { return at<3>().valid(); }
-  uint32_t need_cp() const { return at<3>().as_uint32(); }
-  bool has_datasync() const { return at<4>().valid(); }
-  int32_t datasync() const { return at<4>().as_int32(); }
-  bool has_ret() const { return at<5>().valid(); }
-  int32_t ret() const { return at<5>().as_int32(); }
-};
-
-class F2fsSyncFileExitFtraceEvent : public ::protozero::Message {
- public:
-  using Decoder = F2fsSyncFileExitFtraceEvent_Decoder;
-  enum : int32_t {
-    kDevFieldNumber = 1,
-    kInoFieldNumber = 2,
-    kNeedCpFieldNumber = 3,
-    kDatasyncFieldNumber = 4,
-    kRetFieldNumber = 5,
-  };
-
-  using FieldMetadata_Dev =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      F2fsSyncFileExitFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Dev kDev() { return {}; }
-  void set_dev(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Dev::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Ino =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      F2fsSyncFileExitFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Ino kIno() { return {}; }
-  void set_ino(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Ino::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_NeedCp =
-    ::protozero::proto_utils::FieldMetadata<
-      3,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      F2fsSyncFileExitFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_NeedCp kNeedCp() { return {}; }
-  void set_need_cp(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_NeedCp::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Datasync =
-    ::protozero::proto_utils::FieldMetadata<
-      4,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt32,
-      int32_t,
-      F2fsSyncFileExitFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Datasync kDatasync() { return {}; }
-  void set_datasync(int32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Datasync::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Ret =
-    ::protozero::proto_utils::FieldMetadata<
-      5,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt32,
-      int32_t,
-      F2fsSyncFileExitFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Ret kRet() { return {}; }
-  void set_ret(int32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Ret::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt32>
-        ::Append(*this, field_id, value);
-  }
-};
-
-class F2fsSyncFileEnterFtraceEvent_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/8, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  F2fsSyncFileEnterFtraceEvent_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit F2fsSyncFileEnterFtraceEvent_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit F2fsSyncFileEnterFtraceEvent_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_dev() const { return at<1>().valid(); }
-  uint64_t dev() const { return at<1>().as_uint64(); }
-  bool has_ino() const { return at<2>().valid(); }
-  uint64_t ino() const { return at<2>().as_uint64(); }
-  bool has_pino() const { return at<3>().valid(); }
-  uint64_t pino() const { return at<3>().as_uint64(); }
-  bool has_mode() const { return at<4>().valid(); }
-  uint32_t mode() const { return at<4>().as_uint32(); }
-  bool has_size() const { return at<5>().valid(); }
-  int64_t size() const { return at<5>().as_int64(); }
-  bool has_nlink() const { return at<6>().valid(); }
-  uint32_t nlink() const { return at<6>().as_uint32(); }
-  bool has_blocks() const { return at<7>().valid(); }
-  uint64_t blocks() const { return at<7>().as_uint64(); }
-  bool has_advise() const { return at<8>().valid(); }
-  uint32_t advise() const { return at<8>().as_uint32(); }
-};
-
-class F2fsSyncFileEnterFtraceEvent : public ::protozero::Message {
- public:
-  using Decoder = F2fsSyncFileEnterFtraceEvent_Decoder;
-  enum : int32_t {
-    kDevFieldNumber = 1,
-    kInoFieldNumber = 2,
-    kPinoFieldNumber = 3,
-    kModeFieldNumber = 4,
-    kSizeFieldNumber = 5,
-    kNlinkFieldNumber = 6,
-    kBlocksFieldNumber = 7,
-    kAdviseFieldNumber = 8,
-  };
-
-  using FieldMetadata_Dev =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      F2fsSyncFileEnterFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Dev kDev() { return {}; }
-  void set_dev(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Dev::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Ino =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      F2fsSyncFileEnterFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Ino kIno() { return {}; }
-  void set_ino(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Ino::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Pino =
-    ::protozero::proto_utils::FieldMetadata<
-      3,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      F2fsSyncFileEnterFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Pino kPino() { return {}; }
-  void set_pino(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Pino::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Mode =
-    ::protozero::proto_utils::FieldMetadata<
-      4,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      F2fsSyncFileEnterFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Mode kMode() { return {}; }
-  void set_mode(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Mode::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Size =
-    ::protozero::proto_utils::FieldMetadata<
-      5,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt64,
-      int64_t,
-      F2fsSyncFileEnterFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Size kSize() { return {}; }
-  void set_size(int64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Size::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Nlink =
-    ::protozero::proto_utils::FieldMetadata<
-      6,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      F2fsSyncFileEnterFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Nlink kNlink() { return {}; }
-  void set_nlink(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Nlink::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Blocks =
-    ::protozero::proto_utils::FieldMetadata<
-      7,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      F2fsSyncFileEnterFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Blocks kBlocks() { return {}; }
-  void set_blocks(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Blocks::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Advise =
-    ::protozero::proto_utils::FieldMetadata<
-      8,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      F2fsSyncFileEnterFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Advise kAdvise() { return {}; }
-  void set_advise(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Advise::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-};
-
-class F2fsSubmitWritePageFtraceEvent_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/5, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  F2fsSubmitWritePageFtraceEvent_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit F2fsSubmitWritePageFtraceEvent_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit F2fsSubmitWritePageFtraceEvent_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_dev() const { return at<1>().valid(); }
-  uint64_t dev() const { return at<1>().as_uint64(); }
-  bool has_ino() const { return at<2>().valid(); }
-  uint64_t ino() const { return at<2>().as_uint64(); }
-  bool has_type() const { return at<3>().valid(); }
-  int32_t type() const { return at<3>().as_int32(); }
-  bool has_index() const { return at<4>().valid(); }
-  uint64_t index() const { return at<4>().as_uint64(); }
-  bool has_block() const { return at<5>().valid(); }
-  uint32_t block() const { return at<5>().as_uint32(); }
-};
-
-class F2fsSubmitWritePageFtraceEvent : public ::protozero::Message {
- public:
-  using Decoder = F2fsSubmitWritePageFtraceEvent_Decoder;
-  enum : int32_t {
-    kDevFieldNumber = 1,
-    kInoFieldNumber = 2,
-    kTypeFieldNumber = 3,
-    kIndexFieldNumber = 4,
-    kBlockFieldNumber = 5,
-  };
-
-  using FieldMetadata_Dev =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      F2fsSubmitWritePageFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Dev kDev() { return {}; }
-  void set_dev(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Dev::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Ino =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      F2fsSubmitWritePageFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Ino kIno() { return {}; }
-  void set_ino(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Ino::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Type =
-    ::protozero::proto_utils::FieldMetadata<
-      3,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt32,
-      int32_t,
-      F2fsSubmitWritePageFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Type kType() { return {}; }
-  void set_type(int32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Type::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Index =
-    ::protozero::proto_utils::FieldMetadata<
-      4,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      F2fsSubmitWritePageFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Index kIndex() { return {}; }
-  void set_index(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Index::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Block =
-    ::protozero::proto_utils::FieldMetadata<
-      5,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      F2fsSubmitWritePageFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Block kBlock() { return {}; }
-  void set_block(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Block::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-};
-
-class F2fsSetPageDirtyFtraceEvent_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/6, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  F2fsSetPageDirtyFtraceEvent_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit F2fsSetPageDirtyFtraceEvent_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit F2fsSetPageDirtyFtraceEvent_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_dev() const { return at<1>().valid(); }
-  uint64_t dev() const { return at<1>().as_uint64(); }
-  bool has_ino() const { return at<2>().valid(); }
-  uint64_t ino() const { return at<2>().as_uint64(); }
-  bool has_type() const { return at<3>().valid(); }
-  int32_t type() const { return at<3>().as_int32(); }
-  bool has_dir() const { return at<4>().valid(); }
-  int32_t dir() const { return at<4>().as_int32(); }
-  bool has_index() const { return at<5>().valid(); }
-  uint64_t index() const { return at<5>().as_uint64(); }
-  bool has_dirty() const { return at<6>().valid(); }
-  int32_t dirty() const { return at<6>().as_int32(); }
-};
-
-class F2fsSetPageDirtyFtraceEvent : public ::protozero::Message {
- public:
-  using Decoder = F2fsSetPageDirtyFtraceEvent_Decoder;
-  enum : int32_t {
-    kDevFieldNumber = 1,
-    kInoFieldNumber = 2,
-    kTypeFieldNumber = 3,
-    kDirFieldNumber = 4,
-    kIndexFieldNumber = 5,
-    kDirtyFieldNumber = 6,
-  };
-
-  using FieldMetadata_Dev =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      F2fsSetPageDirtyFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Dev kDev() { return {}; }
-  void set_dev(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Dev::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Ino =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      F2fsSetPageDirtyFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Ino kIno() { return {}; }
-  void set_ino(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Ino::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Type =
-    ::protozero::proto_utils::FieldMetadata<
-      3,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt32,
-      int32_t,
-      F2fsSetPageDirtyFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Type kType() { return {}; }
-  void set_type(int32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Type::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Dir =
-    ::protozero::proto_utils::FieldMetadata<
-      4,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt32,
-      int32_t,
-      F2fsSetPageDirtyFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Dir kDir() { return {}; }
-  void set_dir(int32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Dir::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Index =
-    ::protozero::proto_utils::FieldMetadata<
-      5,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      F2fsSetPageDirtyFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Index kIndex() { return {}; }
-  void set_index(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Index::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Dirty =
-    ::protozero::proto_utils::FieldMetadata<
-      6,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt32,
-      int32_t,
-      F2fsSetPageDirtyFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Dirty kDirty() { return {}; }
-  void set_dirty(int32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Dirty::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt32>
-        ::Append(*this, field_id, value);
-  }
-};
-
-class F2fsReserveNewBlockFtraceEvent_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/3, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  F2fsReserveNewBlockFtraceEvent_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit F2fsReserveNewBlockFtraceEvent_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit F2fsReserveNewBlockFtraceEvent_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_dev() const { return at<1>().valid(); }
-  uint64_t dev() const { return at<1>().as_uint64(); }
-  bool has_nid() const { return at<2>().valid(); }
-  uint32_t nid() const { return at<2>().as_uint32(); }
-  bool has_ofs_in_node() const { return at<3>().valid(); }
-  uint32_t ofs_in_node() const { return at<3>().as_uint32(); }
-};
-
-class F2fsReserveNewBlockFtraceEvent : public ::protozero::Message {
- public:
-  using Decoder = F2fsReserveNewBlockFtraceEvent_Decoder;
-  enum : int32_t {
-    kDevFieldNumber = 1,
-    kNidFieldNumber = 2,
-    kOfsInNodeFieldNumber = 3,
-  };
-
-  using FieldMetadata_Dev =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      F2fsReserveNewBlockFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Dev kDev() { return {}; }
-  void set_dev(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Dev::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Nid =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      F2fsReserveNewBlockFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Nid kNid() { return {}; }
-  void set_nid(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Nid::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_OfsInNode =
-    ::protozero::proto_utils::FieldMetadata<
-      3,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      F2fsReserveNewBlockFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_OfsInNode kOfsInNode() { return {}; }
-  void set_ofs_in_node(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_OfsInNode::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-};
-
-class F2fsReadpageFtraceEvent_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/5, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  F2fsReadpageFtraceEvent_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit F2fsReadpageFtraceEvent_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit F2fsReadpageFtraceEvent_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_dev() const { return at<1>().valid(); }
-  uint64_t dev() const { return at<1>().as_uint64(); }
-  bool has_ino() const { return at<2>().valid(); }
-  uint64_t ino() const { return at<2>().as_uint64(); }
-  bool has_index() const { return at<3>().valid(); }
-  uint64_t index() const { return at<3>().as_uint64(); }
-  bool has_blkaddr() const { return at<4>().valid(); }
-  uint64_t blkaddr() const { return at<4>().as_uint64(); }
-  bool has_type() const { return at<5>().valid(); }
-  int32_t type() const { return at<5>().as_int32(); }
-};
-
-class F2fsReadpageFtraceEvent : public ::protozero::Message {
- public:
-  using Decoder = F2fsReadpageFtraceEvent_Decoder;
-  enum : int32_t {
-    kDevFieldNumber = 1,
-    kInoFieldNumber = 2,
-    kIndexFieldNumber = 3,
-    kBlkaddrFieldNumber = 4,
-    kTypeFieldNumber = 5,
-  };
-
-  using FieldMetadata_Dev =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      F2fsReadpageFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Dev kDev() { return {}; }
-  void set_dev(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Dev::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Ino =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      F2fsReadpageFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Ino kIno() { return {}; }
-  void set_ino(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Ino::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Index =
-    ::protozero::proto_utils::FieldMetadata<
-      3,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      F2fsReadpageFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Index kIndex() { return {}; }
-  void set_index(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Index::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Blkaddr =
-    ::protozero::proto_utils::FieldMetadata<
-      4,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      F2fsReadpageFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Blkaddr kBlkaddr() { return {}; }
-  void set_blkaddr(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Blkaddr::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Type =
-    ::protozero::proto_utils::FieldMetadata<
-      5,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt32,
-      int32_t,
-      F2fsReadpageFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Type kType() { return {}; }
-  void set_type(int32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Type::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt32>
-        ::Append(*this, field_id, value);
-  }
-};
-
-class F2fsNewInodeFtraceEvent_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/3, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  F2fsNewInodeFtraceEvent_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit F2fsNewInodeFtraceEvent_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit F2fsNewInodeFtraceEvent_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_dev() const { return at<1>().valid(); }
-  uint64_t dev() const { return at<1>().as_uint64(); }
-  bool has_ino() const { return at<2>().valid(); }
-  uint64_t ino() const { return at<2>().as_uint64(); }
-  bool has_ret() const { return at<3>().valid(); }
-  int32_t ret() const { return at<3>().as_int32(); }
-};
-
-class F2fsNewInodeFtraceEvent : public ::protozero::Message {
- public:
-  using Decoder = F2fsNewInodeFtraceEvent_Decoder;
-  enum : int32_t {
-    kDevFieldNumber = 1,
-    kInoFieldNumber = 2,
-    kRetFieldNumber = 3,
-  };
-
-  using FieldMetadata_Dev =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      F2fsNewInodeFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Dev kDev() { return {}; }
-  void set_dev(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Dev::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Ino =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      F2fsNewInodeFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Ino kIno() { return {}; }
-  void set_ino(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Ino::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Ret =
-    ::protozero::proto_utils::FieldMetadata<
-      3,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt32,
-      int32_t,
-      F2fsNewInodeFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Ret kRet() { return {}; }
-  void set_ret(int32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Ret::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt32>
-        ::Append(*this, field_id, value);
-  }
-};
-
-class F2fsIgetExitFtraceEvent_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/3, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  F2fsIgetExitFtraceEvent_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit F2fsIgetExitFtraceEvent_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit F2fsIgetExitFtraceEvent_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_dev() const { return at<1>().valid(); }
-  uint64_t dev() const { return at<1>().as_uint64(); }
-  bool has_ino() const { return at<2>().valid(); }
-  uint64_t ino() const { return at<2>().as_uint64(); }
-  bool has_ret() const { return at<3>().valid(); }
-  int32_t ret() const { return at<3>().as_int32(); }
-};
-
-class F2fsIgetExitFtraceEvent : public ::protozero::Message {
- public:
-  using Decoder = F2fsIgetExitFtraceEvent_Decoder;
-  enum : int32_t {
-    kDevFieldNumber = 1,
-    kInoFieldNumber = 2,
-    kRetFieldNumber = 3,
-  };
-
-  using FieldMetadata_Dev =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      F2fsIgetExitFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Dev kDev() { return {}; }
-  void set_dev(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Dev::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Ino =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      F2fsIgetExitFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Ino kIno() { return {}; }
-  void set_ino(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Ino::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Ret =
-    ::protozero::proto_utils::FieldMetadata<
-      3,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt32,
-      int32_t,
-      F2fsIgetExitFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Ret kRet() { return {}; }
-  void set_ret(int32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Ret::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt32>
-        ::Append(*this, field_id, value);
-  }
-};
-
-class F2fsIgetFtraceEvent_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/8, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  F2fsIgetFtraceEvent_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit F2fsIgetFtraceEvent_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit F2fsIgetFtraceEvent_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_dev() const { return at<1>().valid(); }
-  uint64_t dev() const { return at<1>().as_uint64(); }
-  bool has_ino() const { return at<2>().valid(); }
-  uint64_t ino() const { return at<2>().as_uint64(); }
-  bool has_pino() const { return at<3>().valid(); }
-  uint64_t pino() const { return at<3>().as_uint64(); }
-  bool has_mode() const { return at<4>().valid(); }
-  uint32_t mode() const { return at<4>().as_uint32(); }
-  bool has_size() const { return at<5>().valid(); }
-  int64_t size() const { return at<5>().as_int64(); }
-  bool has_nlink() const { return at<6>().valid(); }
-  uint32_t nlink() const { return at<6>().as_uint32(); }
-  bool has_blocks() const { return at<7>().valid(); }
-  uint64_t blocks() const { return at<7>().as_uint64(); }
-  bool has_advise() const { return at<8>().valid(); }
-  uint32_t advise() const { return at<8>().as_uint32(); }
-};
-
-class F2fsIgetFtraceEvent : public ::protozero::Message {
- public:
-  using Decoder = F2fsIgetFtraceEvent_Decoder;
-  enum : int32_t {
-    kDevFieldNumber = 1,
-    kInoFieldNumber = 2,
-    kPinoFieldNumber = 3,
-    kModeFieldNumber = 4,
-    kSizeFieldNumber = 5,
-    kNlinkFieldNumber = 6,
-    kBlocksFieldNumber = 7,
-    kAdviseFieldNumber = 8,
-  };
-
-  using FieldMetadata_Dev =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      F2fsIgetFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Dev kDev() { return {}; }
-  void set_dev(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Dev::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Ino =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      F2fsIgetFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Ino kIno() { return {}; }
-  void set_ino(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Ino::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Pino =
-    ::protozero::proto_utils::FieldMetadata<
-      3,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      F2fsIgetFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Pino kPino() { return {}; }
-  void set_pino(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Pino::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Mode =
-    ::protozero::proto_utils::FieldMetadata<
-      4,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      F2fsIgetFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Mode kMode() { return {}; }
-  void set_mode(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Mode::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Size =
-    ::protozero::proto_utils::FieldMetadata<
-      5,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt64,
-      int64_t,
-      F2fsIgetFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Size kSize() { return {}; }
-  void set_size(int64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Size::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Nlink =
-    ::protozero::proto_utils::FieldMetadata<
-      6,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      F2fsIgetFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Nlink kNlink() { return {}; }
-  void set_nlink(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Nlink::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Blocks =
-    ::protozero::proto_utils::FieldMetadata<
-      7,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      F2fsIgetFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Blocks kBlocks() { return {}; }
-  void set_blocks(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Blocks::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Advise =
-    ::protozero::proto_utils::FieldMetadata<
-      8,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      F2fsIgetFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Advise kAdvise() { return {}; }
-  void set_advise(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Advise::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-};
-
-class F2fsGetVictimFtraceEvent_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/10, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  F2fsGetVictimFtraceEvent_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit F2fsGetVictimFtraceEvent_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit F2fsGetVictimFtraceEvent_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_dev() const { return at<1>().valid(); }
-  uint64_t dev() const { return at<1>().as_uint64(); }
-  bool has_type() const { return at<2>().valid(); }
-  int32_t type() const { return at<2>().as_int32(); }
-  bool has_gc_type() const { return at<3>().valid(); }
-  int32_t gc_type() const { return at<3>().as_int32(); }
-  bool has_alloc_mode() const { return at<4>().valid(); }
-  int32_t alloc_mode() const { return at<4>().as_int32(); }
-  bool has_gc_mode() const { return at<5>().valid(); }
-  int32_t gc_mode() const { return at<5>().as_int32(); }
-  bool has_victim() const { return at<6>().valid(); }
-  uint32_t victim() const { return at<6>().as_uint32(); }
-  bool has_ofs_unit() const { return at<7>().valid(); }
-  uint32_t ofs_unit() const { return at<7>().as_uint32(); }
-  bool has_pre_victim() const { return at<8>().valid(); }
-  uint32_t pre_victim() const { return at<8>().as_uint32(); }
-  bool has_prefree() const { return at<9>().valid(); }
-  uint32_t prefree() const { return at<9>().as_uint32(); }
-  bool has_free() const { return at<10>().valid(); }
-  uint32_t free() const { return at<10>().as_uint32(); }
-};
-
-class F2fsGetVictimFtraceEvent : public ::protozero::Message {
- public:
-  using Decoder = F2fsGetVictimFtraceEvent_Decoder;
-  enum : int32_t {
-    kDevFieldNumber = 1,
-    kTypeFieldNumber = 2,
-    kGcTypeFieldNumber = 3,
-    kAllocModeFieldNumber = 4,
-    kGcModeFieldNumber = 5,
-    kVictimFieldNumber = 6,
-    kOfsUnitFieldNumber = 7,
-    kPreVictimFieldNumber = 8,
-    kPrefreeFieldNumber = 9,
-    kFreeFieldNumber = 10,
-  };
-
-  using FieldMetadata_Dev =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      F2fsGetVictimFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Dev kDev() { return {}; }
-  void set_dev(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Dev::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Type =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt32,
-      int32_t,
-      F2fsGetVictimFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Type kType() { return {}; }
-  void set_type(int32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Type::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_GcType =
-    ::protozero::proto_utils::FieldMetadata<
-      3,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt32,
-      int32_t,
-      F2fsGetVictimFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_GcType kGcType() { return {}; }
-  void set_gc_type(int32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_GcType::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_AllocMode =
-    ::protozero::proto_utils::FieldMetadata<
-      4,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt32,
-      int32_t,
-      F2fsGetVictimFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_AllocMode kAllocMode() { return {}; }
-  void set_alloc_mode(int32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_AllocMode::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_GcMode =
-    ::protozero::proto_utils::FieldMetadata<
-      5,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt32,
-      int32_t,
-      F2fsGetVictimFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_GcMode kGcMode() { return {}; }
-  void set_gc_mode(int32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_GcMode::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Victim =
-    ::protozero::proto_utils::FieldMetadata<
-      6,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      F2fsGetVictimFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Victim kVictim() { return {}; }
-  void set_victim(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Victim::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_OfsUnit =
-    ::protozero::proto_utils::FieldMetadata<
-      7,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      F2fsGetVictimFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_OfsUnit kOfsUnit() { return {}; }
-  void set_ofs_unit(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_OfsUnit::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_PreVictim =
-    ::protozero::proto_utils::FieldMetadata<
-      8,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      F2fsGetVictimFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_PreVictim kPreVictim() { return {}; }
-  void set_pre_victim(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_PreVictim::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Prefree =
-    ::protozero::proto_utils::FieldMetadata<
-      9,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      F2fsGetVictimFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Prefree kPrefree() { return {}; }
-  void set_prefree(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Prefree::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Free =
-    ::protozero::proto_utils::FieldMetadata<
-      10,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      F2fsGetVictimFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Free kFree() { return {}; }
-  void set_free(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Free::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-};
-
-class F2fsGetDataBlockFtraceEvent_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/6, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  F2fsGetDataBlockFtraceEvent_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit F2fsGetDataBlockFtraceEvent_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit F2fsGetDataBlockFtraceEvent_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_dev() const { return at<1>().valid(); }
-  uint64_t dev() const { return at<1>().as_uint64(); }
-  bool has_ino() const { return at<2>().valid(); }
-  uint64_t ino() const { return at<2>().as_uint64(); }
-  bool has_iblock() const { return at<3>().valid(); }
-  uint64_t iblock() const { return at<3>().as_uint64(); }
-  bool has_bh_start() const { return at<4>().valid(); }
-  uint64_t bh_start() const { return at<4>().as_uint64(); }
-  bool has_bh_size() const { return at<5>().valid(); }
-  uint64_t bh_size() const { return at<5>().as_uint64(); }
-  bool has_ret() const { return at<6>().valid(); }
-  int32_t ret() const { return at<6>().as_int32(); }
-};
-
-class F2fsGetDataBlockFtraceEvent : public ::protozero::Message {
- public:
-  using Decoder = F2fsGetDataBlockFtraceEvent_Decoder;
-  enum : int32_t {
-    kDevFieldNumber = 1,
-    kInoFieldNumber = 2,
-    kIblockFieldNumber = 3,
-    kBhStartFieldNumber = 4,
-    kBhSizeFieldNumber = 5,
-    kRetFieldNumber = 6,
-  };
-
-  using FieldMetadata_Dev =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      F2fsGetDataBlockFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Dev kDev() { return {}; }
-  void set_dev(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Dev::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Ino =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      F2fsGetDataBlockFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Ino kIno() { return {}; }
-  void set_ino(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Ino::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Iblock =
-    ::protozero::proto_utils::FieldMetadata<
-      3,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      F2fsGetDataBlockFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Iblock kIblock() { return {}; }
-  void set_iblock(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Iblock::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_BhStart =
-    ::protozero::proto_utils::FieldMetadata<
-      4,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      F2fsGetDataBlockFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_BhStart kBhStart() { return {}; }
-  void set_bh_start(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_BhStart::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_BhSize =
-    ::protozero::proto_utils::FieldMetadata<
-      5,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      F2fsGetDataBlockFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_BhSize kBhSize() { return {}; }
-  void set_bh_size(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_BhSize::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Ret =
-    ::protozero::proto_utils::FieldMetadata<
-      6,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt32,
-      int32_t,
-      F2fsGetDataBlockFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Ret kRet() { return {}; }
-  void set_ret(int32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Ret::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt32>
-        ::Append(*this, field_id, value);
-  }
-};
-
-class F2fsFallocateFtraceEvent_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/8, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  F2fsFallocateFtraceEvent_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit F2fsFallocateFtraceEvent_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit F2fsFallocateFtraceEvent_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_dev() const { return at<1>().valid(); }
-  uint64_t dev() const { return at<1>().as_uint64(); }
-  bool has_ino() const { return at<2>().valid(); }
-  uint64_t ino() const { return at<2>().as_uint64(); }
-  bool has_mode() const { return at<3>().valid(); }
-  int32_t mode() const { return at<3>().as_int32(); }
-  bool has_offset() const { return at<4>().valid(); }
-  int64_t offset() const { return at<4>().as_int64(); }
-  bool has_len() const { return at<5>().valid(); }
-  int64_t len() const { return at<5>().as_int64(); }
-  bool has_size() const { return at<6>().valid(); }
-  int64_t size() const { return at<6>().as_int64(); }
-  bool has_blocks() const { return at<7>().valid(); }
-  uint64_t blocks() const { return at<7>().as_uint64(); }
-  bool has_ret() const { return at<8>().valid(); }
-  int32_t ret() const { return at<8>().as_int32(); }
-};
-
-class F2fsFallocateFtraceEvent : public ::protozero::Message {
- public:
-  using Decoder = F2fsFallocateFtraceEvent_Decoder;
-  enum : int32_t {
-    kDevFieldNumber = 1,
-    kInoFieldNumber = 2,
-    kModeFieldNumber = 3,
-    kOffsetFieldNumber = 4,
-    kLenFieldNumber = 5,
-    kSizeFieldNumber = 6,
-    kBlocksFieldNumber = 7,
-    kRetFieldNumber = 8,
-  };
-
-  using FieldMetadata_Dev =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      F2fsFallocateFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Dev kDev() { return {}; }
-  void set_dev(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Dev::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Ino =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      F2fsFallocateFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Ino kIno() { return {}; }
-  void set_ino(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Ino::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Mode =
-    ::protozero::proto_utils::FieldMetadata<
-      3,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt32,
-      int32_t,
-      F2fsFallocateFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Mode kMode() { return {}; }
-  void set_mode(int32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Mode::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Offset =
-    ::protozero::proto_utils::FieldMetadata<
-      4,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt64,
-      int64_t,
-      F2fsFallocateFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Offset kOffset() { return {}; }
-  void set_offset(int64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Offset::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Len =
-    ::protozero::proto_utils::FieldMetadata<
-      5,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt64,
-      int64_t,
-      F2fsFallocateFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Len kLen() { return {}; }
-  void set_len(int64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Len::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Size =
-    ::protozero::proto_utils::FieldMetadata<
-      6,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt64,
-      int64_t,
-      F2fsFallocateFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Size kSize() { return {}; }
-  void set_size(int64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Size::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Blocks =
-    ::protozero::proto_utils::FieldMetadata<
-      7,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      F2fsFallocateFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Blocks kBlocks() { return {}; }
-  void set_blocks(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Blocks::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Ret =
-    ::protozero::proto_utils::FieldMetadata<
-      8,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt32,
-      int32_t,
-      F2fsFallocateFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Ret kRet() { return {}; }
-  void set_ret(int32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Ret::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt32>
-        ::Append(*this, field_id, value);
-  }
-};
-
-class F2fsEvictInodeFtraceEvent_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/8, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  F2fsEvictInodeFtraceEvent_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit F2fsEvictInodeFtraceEvent_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit F2fsEvictInodeFtraceEvent_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_dev() const { return at<1>().valid(); }
-  uint64_t dev() const { return at<1>().as_uint64(); }
-  bool has_ino() const { return at<2>().valid(); }
-  uint64_t ino() const { return at<2>().as_uint64(); }
-  bool has_pino() const { return at<3>().valid(); }
-  uint64_t pino() const { return at<3>().as_uint64(); }
-  bool has_mode() const { return at<4>().valid(); }
-  uint32_t mode() const { return at<4>().as_uint32(); }
-  bool has_size() const { return at<5>().valid(); }
-  int64_t size() const { return at<5>().as_int64(); }
-  bool has_nlink() const { return at<6>().valid(); }
-  uint32_t nlink() const { return at<6>().as_uint32(); }
-  bool has_blocks() const { return at<7>().valid(); }
-  uint64_t blocks() const { return at<7>().as_uint64(); }
-  bool has_advise() const { return at<8>().valid(); }
-  uint32_t advise() const { return at<8>().as_uint32(); }
-};
-
-class F2fsEvictInodeFtraceEvent : public ::protozero::Message {
- public:
-  using Decoder = F2fsEvictInodeFtraceEvent_Decoder;
-  enum : int32_t {
-    kDevFieldNumber = 1,
-    kInoFieldNumber = 2,
-    kPinoFieldNumber = 3,
-    kModeFieldNumber = 4,
-    kSizeFieldNumber = 5,
-    kNlinkFieldNumber = 6,
-    kBlocksFieldNumber = 7,
-    kAdviseFieldNumber = 8,
-  };
-
-  using FieldMetadata_Dev =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      F2fsEvictInodeFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Dev kDev() { return {}; }
-  void set_dev(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Dev::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Ino =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      F2fsEvictInodeFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Ino kIno() { return {}; }
-  void set_ino(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Ino::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Pino =
-    ::protozero::proto_utils::FieldMetadata<
-      3,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      F2fsEvictInodeFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Pino kPino() { return {}; }
-  void set_pino(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Pino::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Mode =
-    ::protozero::proto_utils::FieldMetadata<
-      4,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      F2fsEvictInodeFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Mode kMode() { return {}; }
-  void set_mode(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Mode::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Size =
-    ::protozero::proto_utils::FieldMetadata<
-      5,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt64,
-      int64_t,
-      F2fsEvictInodeFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Size kSize() { return {}; }
-  void set_size(int64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Size::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Nlink =
-    ::protozero::proto_utils::FieldMetadata<
-      6,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      F2fsEvictInodeFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Nlink kNlink() { return {}; }
-  void set_nlink(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Nlink::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Blocks =
-    ::protozero::proto_utils::FieldMetadata<
-      7,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      F2fsEvictInodeFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Blocks kBlocks() { return {}; }
-  void set_blocks(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Blocks::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Advise =
-    ::protozero::proto_utils::FieldMetadata<
-      8,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      F2fsEvictInodeFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Advise kAdvise() { return {}; }
-  void set_advise(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Advise::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-};
-
-class F2fsDoSubmitBioFtraceEvent_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/5, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  F2fsDoSubmitBioFtraceEvent_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit F2fsDoSubmitBioFtraceEvent_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit F2fsDoSubmitBioFtraceEvent_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_dev() const { return at<1>().valid(); }
-  uint64_t dev() const { return at<1>().as_uint64(); }
-  bool has_btype() const { return at<2>().valid(); }
-  int32_t btype() const { return at<2>().as_int32(); }
-  bool has_sync() const { return at<3>().valid(); }
-  uint32_t sync() const { return at<3>().as_uint32(); }
-  bool has_sector() const { return at<4>().valid(); }
-  uint64_t sector() const { return at<4>().as_uint64(); }
-  bool has_size() const { return at<5>().valid(); }
-  uint32_t size() const { return at<5>().as_uint32(); }
-};
-
-class F2fsDoSubmitBioFtraceEvent : public ::protozero::Message {
- public:
-  using Decoder = F2fsDoSubmitBioFtraceEvent_Decoder;
-  enum : int32_t {
-    kDevFieldNumber = 1,
-    kBtypeFieldNumber = 2,
-    kSyncFieldNumber = 3,
-    kSectorFieldNumber = 4,
-    kSizeFieldNumber = 5,
-  };
-
-  using FieldMetadata_Dev =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      F2fsDoSubmitBioFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Dev kDev() { return {}; }
-  void set_dev(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Dev::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Btype =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt32,
-      int32_t,
-      F2fsDoSubmitBioFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Btype kBtype() { return {}; }
-  void set_btype(int32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Btype::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Sync =
-    ::protozero::proto_utils::FieldMetadata<
-      3,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      F2fsDoSubmitBioFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Sync kSync() { return {}; }
-  void set_sync(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Sync::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Sector =
-    ::protozero::proto_utils::FieldMetadata<
-      4,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      F2fsDoSubmitBioFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Sector kSector() { return {}; }
-  void set_sector(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Sector::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Size =
-    ::protozero::proto_utils::FieldMetadata<
-      5,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      F2fsDoSubmitBioFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Size kSize() { return {}; }
-  void set_size(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Size::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-};
-
-} // Namespace.
-} // Namespace.
-} // Namespace.
-#endif  // Include guard.
-// gen_amalgamated begin header: gen/protos/perfetto/trace/ftrace/fastrpc.pbzero.h
-// Autogenerated by the ProtoZero compiler plugin. DO NOT EDIT.
-
-#ifndef PERFETTO_PROTOS_PROTOS_PERFETTO_TRACE_FTRACE_FASTRPC_PROTO_H_
-#define PERFETTO_PROTOS_PROTOS_PERFETTO_TRACE_FTRACE_FASTRPC_PROTO_H_
-
-#include <stddef.h>
-#include <stdint.h>
-
-// gen_amalgamated expanded: #include "perfetto/protozero/field_writer.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/message.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/packed_repeated_fields.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/proto_decoder.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/proto_utils.h"
-
-namespace perfetto {
-namespace protos {
-namespace pbzero {
-
-
-class FastrpcDmaStatFtraceEvent_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/3, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  FastrpcDmaStatFtraceEvent_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit FastrpcDmaStatFtraceEvent_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit FastrpcDmaStatFtraceEvent_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_cid() const { return at<1>().valid(); }
-  int32_t cid() const { return at<1>().as_int32(); }
-  bool has_len() const { return at<2>().valid(); }
-  int64_t len() const { return at<2>().as_int64(); }
-  bool has_total_allocated() const { return at<3>().valid(); }
-  uint64_t total_allocated() const { return at<3>().as_uint64(); }
-};
-
-class FastrpcDmaStatFtraceEvent : public ::protozero::Message {
- public:
-  using Decoder = FastrpcDmaStatFtraceEvent_Decoder;
-  enum : int32_t {
-    kCidFieldNumber = 1,
-    kLenFieldNumber = 2,
-    kTotalAllocatedFieldNumber = 3,
-  };
-
-  using FieldMetadata_Cid =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt32,
-      int32_t,
-      FastrpcDmaStatFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Cid kCid() { return {}; }
-  void set_cid(int32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Cid::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Len =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt64,
-      int64_t,
-      FastrpcDmaStatFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Len kLen() { return {}; }
-  void set_len(int64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Len::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_TotalAllocated =
-    ::protozero::proto_utils::FieldMetadata<
-      3,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      FastrpcDmaStatFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_TotalAllocated kTotalAllocated() { return {}; }
-  void set_total_allocated(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_TotalAllocated::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-};
-
-} // Namespace.
-} // Namespace.
-} // Namespace.
-#endif  // Include guard.
-// gen_amalgamated begin header: gen/protos/perfetto/trace/ftrace/fence.pbzero.h
-// Autogenerated by the ProtoZero compiler plugin. DO NOT EDIT.
-
-#ifndef PERFETTO_PROTOS_PROTOS_PERFETTO_TRACE_FTRACE_FENCE_PROTO_H_
-#define PERFETTO_PROTOS_PROTOS_PERFETTO_TRACE_FTRACE_FENCE_PROTO_H_
-
-#include <stddef.h>
-#include <stdint.h>
-
-// gen_amalgamated expanded: #include "perfetto/protozero/field_writer.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/message.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/packed_repeated_fields.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/proto_decoder.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/proto_utils.h"
-
-namespace perfetto {
-namespace protos {
-namespace pbzero {
-
-
-class FenceSignaledFtraceEvent_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/4, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  FenceSignaledFtraceEvent_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit FenceSignaledFtraceEvent_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit FenceSignaledFtraceEvent_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_context() const { return at<1>().valid(); }
-  uint32_t context() const { return at<1>().as_uint32(); }
-  bool has_driver() const { return at<2>().valid(); }
-  ::protozero::ConstChars driver() const { return at<2>().as_string(); }
-  bool has_seqno() const { return at<3>().valid(); }
-  uint32_t seqno() const { return at<3>().as_uint32(); }
-  bool has_timeline() const { return at<4>().valid(); }
-  ::protozero::ConstChars timeline() const { return at<4>().as_string(); }
-};
-
-class FenceSignaledFtraceEvent : public ::protozero::Message {
- public:
-  using Decoder = FenceSignaledFtraceEvent_Decoder;
-  enum : int32_t {
-    kContextFieldNumber = 1,
-    kDriverFieldNumber = 2,
-    kSeqnoFieldNumber = 3,
-    kTimelineFieldNumber = 4,
-  };
-
-  using FieldMetadata_Context =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      FenceSignaledFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Context kContext() { return {}; }
-  void set_context(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Context::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Driver =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kString,
-      std::string,
-      FenceSignaledFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Driver kDriver() { return {}; }
-  void set_driver(const char* data, size_t size) {
-    AppendBytes(FieldMetadata_Driver::kFieldId, data, size);
-  }
-  void set_driver(std::string value) {
-    static constexpr uint32_t field_id = FieldMetadata_Driver::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kString>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Seqno =
-    ::protozero::proto_utils::FieldMetadata<
-      3,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      FenceSignaledFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Seqno kSeqno() { return {}; }
-  void set_seqno(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Seqno::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Timeline =
-    ::protozero::proto_utils::FieldMetadata<
-      4,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kString,
-      std::string,
-      FenceSignaledFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Timeline kTimeline() { return {}; }
-  void set_timeline(const char* data, size_t size) {
-    AppendBytes(FieldMetadata_Timeline::kFieldId, data, size);
-  }
-  void set_timeline(std::string value) {
-    static constexpr uint32_t field_id = FieldMetadata_Timeline::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kString>
-        ::Append(*this, field_id, value);
-  }
-};
-
-class FenceEnableSignalFtraceEvent_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/4, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  FenceEnableSignalFtraceEvent_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit FenceEnableSignalFtraceEvent_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit FenceEnableSignalFtraceEvent_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_context() const { return at<1>().valid(); }
-  uint32_t context() const { return at<1>().as_uint32(); }
-  bool has_driver() const { return at<2>().valid(); }
-  ::protozero::ConstChars driver() const { return at<2>().as_string(); }
-  bool has_seqno() const { return at<3>().valid(); }
-  uint32_t seqno() const { return at<3>().as_uint32(); }
-  bool has_timeline() const { return at<4>().valid(); }
-  ::protozero::ConstChars timeline() const { return at<4>().as_string(); }
-};
-
-class FenceEnableSignalFtraceEvent : public ::protozero::Message {
- public:
-  using Decoder = FenceEnableSignalFtraceEvent_Decoder;
-  enum : int32_t {
-    kContextFieldNumber = 1,
-    kDriverFieldNumber = 2,
-    kSeqnoFieldNumber = 3,
-    kTimelineFieldNumber = 4,
-  };
-
-  using FieldMetadata_Context =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      FenceEnableSignalFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Context kContext() { return {}; }
-  void set_context(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Context::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Driver =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kString,
-      std::string,
-      FenceEnableSignalFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Driver kDriver() { return {}; }
-  void set_driver(const char* data, size_t size) {
-    AppendBytes(FieldMetadata_Driver::kFieldId, data, size);
-  }
-  void set_driver(std::string value) {
-    static constexpr uint32_t field_id = FieldMetadata_Driver::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kString>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Seqno =
-    ::protozero::proto_utils::FieldMetadata<
-      3,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      FenceEnableSignalFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Seqno kSeqno() { return {}; }
-  void set_seqno(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Seqno::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Timeline =
-    ::protozero::proto_utils::FieldMetadata<
-      4,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kString,
-      std::string,
-      FenceEnableSignalFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Timeline kTimeline() { return {}; }
-  void set_timeline(const char* data, size_t size) {
-    AppendBytes(FieldMetadata_Timeline::kFieldId, data, size);
-  }
-  void set_timeline(std::string value) {
-    static constexpr uint32_t field_id = FieldMetadata_Timeline::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kString>
-        ::Append(*this, field_id, value);
-  }
-};
-
-class FenceDestroyFtraceEvent_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/4, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  FenceDestroyFtraceEvent_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit FenceDestroyFtraceEvent_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit FenceDestroyFtraceEvent_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_context() const { return at<1>().valid(); }
-  uint32_t context() const { return at<1>().as_uint32(); }
-  bool has_driver() const { return at<2>().valid(); }
-  ::protozero::ConstChars driver() const { return at<2>().as_string(); }
-  bool has_seqno() const { return at<3>().valid(); }
-  uint32_t seqno() const { return at<3>().as_uint32(); }
-  bool has_timeline() const { return at<4>().valid(); }
-  ::protozero::ConstChars timeline() const { return at<4>().as_string(); }
-};
-
-class FenceDestroyFtraceEvent : public ::protozero::Message {
- public:
-  using Decoder = FenceDestroyFtraceEvent_Decoder;
-  enum : int32_t {
-    kContextFieldNumber = 1,
-    kDriverFieldNumber = 2,
-    kSeqnoFieldNumber = 3,
-    kTimelineFieldNumber = 4,
-  };
-
-  using FieldMetadata_Context =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      FenceDestroyFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Context kContext() { return {}; }
-  void set_context(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Context::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Driver =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kString,
-      std::string,
-      FenceDestroyFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Driver kDriver() { return {}; }
-  void set_driver(const char* data, size_t size) {
-    AppendBytes(FieldMetadata_Driver::kFieldId, data, size);
-  }
-  void set_driver(std::string value) {
-    static constexpr uint32_t field_id = FieldMetadata_Driver::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kString>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Seqno =
-    ::protozero::proto_utils::FieldMetadata<
-      3,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      FenceDestroyFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Seqno kSeqno() { return {}; }
-  void set_seqno(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Seqno::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Timeline =
-    ::protozero::proto_utils::FieldMetadata<
-      4,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kString,
-      std::string,
-      FenceDestroyFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Timeline kTimeline() { return {}; }
-  void set_timeline(const char* data, size_t size) {
-    AppendBytes(FieldMetadata_Timeline::kFieldId, data, size);
-  }
-  void set_timeline(std::string value) {
-    static constexpr uint32_t field_id = FieldMetadata_Timeline::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kString>
-        ::Append(*this, field_id, value);
-  }
-};
-
-class FenceInitFtraceEvent_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/4, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  FenceInitFtraceEvent_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit FenceInitFtraceEvent_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit FenceInitFtraceEvent_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_context() const { return at<1>().valid(); }
-  uint32_t context() const { return at<1>().as_uint32(); }
-  bool has_driver() const { return at<2>().valid(); }
-  ::protozero::ConstChars driver() const { return at<2>().as_string(); }
-  bool has_seqno() const { return at<3>().valid(); }
-  uint32_t seqno() const { return at<3>().as_uint32(); }
-  bool has_timeline() const { return at<4>().valid(); }
-  ::protozero::ConstChars timeline() const { return at<4>().as_string(); }
-};
-
-class FenceInitFtraceEvent : public ::protozero::Message {
- public:
-  using Decoder = FenceInitFtraceEvent_Decoder;
-  enum : int32_t {
-    kContextFieldNumber = 1,
-    kDriverFieldNumber = 2,
-    kSeqnoFieldNumber = 3,
-    kTimelineFieldNumber = 4,
-  };
-
-  using FieldMetadata_Context =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      FenceInitFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Context kContext() { return {}; }
-  void set_context(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Context::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Driver =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kString,
-      std::string,
-      FenceInitFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Driver kDriver() { return {}; }
-  void set_driver(const char* data, size_t size) {
-    AppendBytes(FieldMetadata_Driver::kFieldId, data, size);
-  }
-  void set_driver(std::string value) {
-    static constexpr uint32_t field_id = FieldMetadata_Driver::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kString>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Seqno =
-    ::protozero::proto_utils::FieldMetadata<
-      3,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      FenceInitFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Seqno kSeqno() { return {}; }
-  void set_seqno(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Seqno::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Timeline =
-    ::protozero::proto_utils::FieldMetadata<
-      4,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kString,
-      std::string,
-      FenceInitFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Timeline kTimeline() { return {}; }
-  void set_timeline(const char* data, size_t size) {
-    AppendBytes(FieldMetadata_Timeline::kFieldId, data, size);
-  }
-  void set_timeline(std::string value) {
-    static constexpr uint32_t field_id = FieldMetadata_Timeline::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kString>
-        ::Append(*this, field_id, value);
-  }
-};
-
-} // Namespace.
-} // Namespace.
-} // Namespace.
-#endif  // Include guard.
-// gen_amalgamated begin header: gen/protos/perfetto/trace/ftrace/filemap.pbzero.h
-// Autogenerated by the ProtoZero compiler plugin. DO NOT EDIT.
-
-#ifndef PERFETTO_PROTOS_PROTOS_PERFETTO_TRACE_FTRACE_FILEMAP_PROTO_H_
-#define PERFETTO_PROTOS_PROTOS_PERFETTO_TRACE_FTRACE_FILEMAP_PROTO_H_
-
-#include <stddef.h>
-#include <stdint.h>
-
-// gen_amalgamated expanded: #include "perfetto/protozero/field_writer.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/message.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/packed_repeated_fields.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/proto_decoder.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/proto_utils.h"
-
-namespace perfetto {
-namespace protos {
-namespace pbzero {
-
-
-class MmFilemapDeleteFromPageCacheFtraceEvent_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/5, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  MmFilemapDeleteFromPageCacheFtraceEvent_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit MmFilemapDeleteFromPageCacheFtraceEvent_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit MmFilemapDeleteFromPageCacheFtraceEvent_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_pfn() const { return at<1>().valid(); }
-  uint64_t pfn() const { return at<1>().as_uint64(); }
-  bool has_i_ino() const { return at<2>().valid(); }
-  uint64_t i_ino() const { return at<2>().as_uint64(); }
-  bool has_index() const { return at<3>().valid(); }
-  uint64_t index() const { return at<3>().as_uint64(); }
-  bool has_s_dev() const { return at<4>().valid(); }
-  uint64_t s_dev() const { return at<4>().as_uint64(); }
-  bool has_page() const { return at<5>().valid(); }
-  uint64_t page() const { return at<5>().as_uint64(); }
-};
-
-class MmFilemapDeleteFromPageCacheFtraceEvent : public ::protozero::Message {
- public:
-  using Decoder = MmFilemapDeleteFromPageCacheFtraceEvent_Decoder;
-  enum : int32_t {
-    kPfnFieldNumber = 1,
-    kIInoFieldNumber = 2,
-    kIndexFieldNumber = 3,
-    kSDevFieldNumber = 4,
-    kPageFieldNumber = 5,
-  };
-
-  using FieldMetadata_Pfn =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      MmFilemapDeleteFromPageCacheFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Pfn kPfn() { return {}; }
-  void set_pfn(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Pfn::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_IIno =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      MmFilemapDeleteFromPageCacheFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_IIno kIIno() { return {}; }
-  void set_i_ino(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_IIno::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Index =
-    ::protozero::proto_utils::FieldMetadata<
-      3,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      MmFilemapDeleteFromPageCacheFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Index kIndex() { return {}; }
-  void set_index(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Index::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_SDev =
-    ::protozero::proto_utils::FieldMetadata<
-      4,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      MmFilemapDeleteFromPageCacheFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_SDev kSDev() { return {}; }
-  void set_s_dev(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_SDev::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Page =
-    ::protozero::proto_utils::FieldMetadata<
-      5,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      MmFilemapDeleteFromPageCacheFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Page kPage() { return {}; }
-  void set_page(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Page::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-};
-
-class MmFilemapAddToPageCacheFtraceEvent_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/5, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  MmFilemapAddToPageCacheFtraceEvent_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit MmFilemapAddToPageCacheFtraceEvent_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit MmFilemapAddToPageCacheFtraceEvent_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_pfn() const { return at<1>().valid(); }
-  uint64_t pfn() const { return at<1>().as_uint64(); }
-  bool has_i_ino() const { return at<2>().valid(); }
-  uint64_t i_ino() const { return at<2>().as_uint64(); }
-  bool has_index() const { return at<3>().valid(); }
-  uint64_t index() const { return at<3>().as_uint64(); }
-  bool has_s_dev() const { return at<4>().valid(); }
-  uint64_t s_dev() const { return at<4>().as_uint64(); }
-  bool has_page() const { return at<5>().valid(); }
-  uint64_t page() const { return at<5>().as_uint64(); }
-};
-
-class MmFilemapAddToPageCacheFtraceEvent : public ::protozero::Message {
- public:
-  using Decoder = MmFilemapAddToPageCacheFtraceEvent_Decoder;
-  enum : int32_t {
-    kPfnFieldNumber = 1,
-    kIInoFieldNumber = 2,
-    kIndexFieldNumber = 3,
-    kSDevFieldNumber = 4,
-    kPageFieldNumber = 5,
-  };
-
-  using FieldMetadata_Pfn =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      MmFilemapAddToPageCacheFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Pfn kPfn() { return {}; }
-  void set_pfn(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Pfn::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_IIno =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      MmFilemapAddToPageCacheFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_IIno kIIno() { return {}; }
-  void set_i_ino(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_IIno::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Index =
-    ::protozero::proto_utils::FieldMetadata<
-      3,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      MmFilemapAddToPageCacheFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Index kIndex() { return {}; }
-  void set_index(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Index::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_SDev =
-    ::protozero::proto_utils::FieldMetadata<
-      4,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      MmFilemapAddToPageCacheFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_SDev kSDev() { return {}; }
-  void set_s_dev(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_SDev::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Page =
-    ::protozero::proto_utils::FieldMetadata<
-      5,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      MmFilemapAddToPageCacheFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Page kPage() { return {}; }
-  void set_page(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Page::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-};
-
-} // Namespace.
-} // Namespace.
-} // Namespace.
-#endif  // Include guard.
-// gen_amalgamated begin header: gen/protos/perfetto/trace/ftrace/ftrace.pbzero.h
-// Autogenerated by the ProtoZero compiler plugin. DO NOT EDIT.
-
-#ifndef PERFETTO_PROTOS_PROTOS_PERFETTO_TRACE_FTRACE_FTRACE_PROTO_H_
-#define PERFETTO_PROTOS_PROTOS_PERFETTO_TRACE_FTRACE_FTRACE_PROTO_H_
-
-#include <stddef.h>
-#include <stdint.h>
-
-// gen_amalgamated expanded: #include "perfetto/protozero/field_writer.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/message.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/packed_repeated_fields.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/proto_decoder.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/proto_utils.h"
-
-namespace perfetto {
-namespace protos {
-namespace pbzero {
-
-
-class PrintFtraceEvent_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/2, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  PrintFtraceEvent_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit PrintFtraceEvent_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit PrintFtraceEvent_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_ip() const { return at<1>().valid(); }
-  uint64_t ip() const { return at<1>().as_uint64(); }
-  bool has_buf() const { return at<2>().valid(); }
-  ::protozero::ConstChars buf() const { return at<2>().as_string(); }
-};
-
-class PrintFtraceEvent : public ::protozero::Message {
- public:
-  using Decoder = PrintFtraceEvent_Decoder;
-  enum : int32_t {
-    kIpFieldNumber = 1,
-    kBufFieldNumber = 2,
-  };
-
-  using FieldMetadata_Ip =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      PrintFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Ip kIp() { return {}; }
-  void set_ip(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Ip::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Buf =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kString,
-      std::string,
-      PrintFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Buf kBuf() { return {}; }
-  void set_buf(const char* data, size_t size) {
-    AppendBytes(FieldMetadata_Buf::kFieldId, data, size);
-  }
-  void set_buf(std::string value) {
-    static constexpr uint32_t field_id = FieldMetadata_Buf::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kString>
-        ::Append(*this, field_id, value);
-  }
-};
-
-} // Namespace.
-} // Namespace.
-} // Namespace.
-#endif  // Include guard.
-// gen_amalgamated begin header: gen/protos/perfetto/trace/ftrace/g2d.pbzero.h
-// Autogenerated by the ProtoZero compiler plugin. DO NOT EDIT.
-
-#ifndef PERFETTO_PROTOS_PROTOS_PERFETTO_TRACE_FTRACE_G2D_PROTO_H_
-#define PERFETTO_PROTOS_PROTOS_PERFETTO_TRACE_FTRACE_G2D_PROTO_H_
-
-#include <stddef.h>
-#include <stdint.h>
-
-// gen_amalgamated expanded: #include "perfetto/protozero/field_writer.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/message.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/packed_repeated_fields.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/proto_decoder.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/proto_utils.h"
-
-namespace perfetto {
-namespace protos {
-namespace pbzero {
-
-
-class G2dTracingMarkWriteFtraceEvent_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/6, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  G2dTracingMarkWriteFtraceEvent_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit G2dTracingMarkWriteFtraceEvent_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit G2dTracingMarkWriteFtraceEvent_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_pid() const { return at<1>().valid(); }
-  int32_t pid() const { return at<1>().as_int32(); }
-  bool has_name() const { return at<4>().valid(); }
-  ::protozero::ConstChars name() const { return at<4>().as_string(); }
-  bool has_type() const { return at<5>().valid(); }
-  uint32_t type() const { return at<5>().as_uint32(); }
-  bool has_value() const { return at<6>().valid(); }
-  int32_t value() const { return at<6>().as_int32(); }
-};
-
-class G2dTracingMarkWriteFtraceEvent : public ::protozero::Message {
- public:
-  using Decoder = G2dTracingMarkWriteFtraceEvent_Decoder;
-  enum : int32_t {
-    kPidFieldNumber = 1,
-    kNameFieldNumber = 4,
-    kTypeFieldNumber = 5,
-    kValueFieldNumber = 6,
-  };
-
-  using FieldMetadata_Pid =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt32,
-      int32_t,
-      G2dTracingMarkWriteFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Pid kPid() { return {}; }
-  void set_pid(int32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Pid::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Name =
-    ::protozero::proto_utils::FieldMetadata<
-      4,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kString,
-      std::string,
-      G2dTracingMarkWriteFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Name kName() { return {}; }
-  void set_name(const char* data, size_t size) {
-    AppendBytes(FieldMetadata_Name::kFieldId, data, size);
-  }
-  void set_name(std::string value) {
-    static constexpr uint32_t field_id = FieldMetadata_Name::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kString>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Type =
-    ::protozero::proto_utils::FieldMetadata<
-      5,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      G2dTracingMarkWriteFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Type kType() { return {}; }
-  void set_type(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Type::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Value =
-    ::protozero::proto_utils::FieldMetadata<
-      6,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt32,
-      int32_t,
-      G2dTracingMarkWriteFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Value kValue() { return {}; }
-  void set_value(int32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Value::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt32>
-        ::Append(*this, field_id, value);
-  }
-};
-
-} // Namespace.
-} // Namespace.
-} // Namespace.
-#endif  // Include guard.
-// gen_amalgamated begin header: gen/protos/perfetto/trace/ftrace/gpu_mem.pbzero.h
-// Autogenerated by the ProtoZero compiler plugin. DO NOT EDIT.
-
-#ifndef PERFETTO_PROTOS_PROTOS_PERFETTO_TRACE_FTRACE_GPU_MEM_PROTO_H_
-#define PERFETTO_PROTOS_PROTOS_PERFETTO_TRACE_FTRACE_GPU_MEM_PROTO_H_
-
-#include <stddef.h>
-#include <stdint.h>
-
-// gen_amalgamated expanded: #include "perfetto/protozero/field_writer.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/message.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/packed_repeated_fields.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/proto_decoder.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/proto_utils.h"
-
-namespace perfetto {
-namespace protos {
-namespace pbzero {
-
-
-class GpuMemTotalFtraceEvent_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/3, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  GpuMemTotalFtraceEvent_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit GpuMemTotalFtraceEvent_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit GpuMemTotalFtraceEvent_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_gpu_id() const { return at<1>().valid(); }
-  uint32_t gpu_id() const { return at<1>().as_uint32(); }
-  bool has_pid() const { return at<2>().valid(); }
-  uint32_t pid() const { return at<2>().as_uint32(); }
-  bool has_size() const { return at<3>().valid(); }
-  uint64_t size() const { return at<3>().as_uint64(); }
-};
-
-class GpuMemTotalFtraceEvent : public ::protozero::Message {
- public:
-  using Decoder = GpuMemTotalFtraceEvent_Decoder;
-  enum : int32_t {
-    kGpuIdFieldNumber = 1,
-    kPidFieldNumber = 2,
-    kSizeFieldNumber = 3,
-  };
-
-  using FieldMetadata_GpuId =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      GpuMemTotalFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_GpuId kGpuId() { return {}; }
-  void set_gpu_id(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_GpuId::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Pid =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      GpuMemTotalFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Pid kPid() { return {}; }
-  void set_pid(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Pid::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Size =
-    ::protozero::proto_utils::FieldMetadata<
-      3,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      GpuMemTotalFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Size kSize() { return {}; }
-  void set_size(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Size::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-};
-
-} // Namespace.
-} // Namespace.
-} // Namespace.
-#endif  // Include guard.
-// gen_amalgamated begin header: gen/protos/perfetto/trace/ftrace/i2c.pbzero.h
-// Autogenerated by the ProtoZero compiler plugin. DO NOT EDIT.
-
-#ifndef PERFETTO_PROTOS_PROTOS_PERFETTO_TRACE_FTRACE_I2C_PROTO_H_
-#define PERFETTO_PROTOS_PROTOS_PERFETTO_TRACE_FTRACE_I2C_PROTO_H_
-
-#include <stddef.h>
-#include <stdint.h>
-
-// gen_amalgamated expanded: #include "perfetto/protozero/field_writer.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/message.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/packed_repeated_fields.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/proto_decoder.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/proto_utils.h"
-
-namespace perfetto {
-namespace protos {
-namespace pbzero {
-
-
-class SmbusReplyFtraceEvent_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/6, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  SmbusReplyFtraceEvent_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit SmbusReplyFtraceEvent_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit SmbusReplyFtraceEvent_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_adapter_nr() const { return at<1>().valid(); }
-  int32_t adapter_nr() const { return at<1>().as_int32(); }
-  bool has_addr() const { return at<2>().valid(); }
-  uint32_t addr() const { return at<2>().as_uint32(); }
-  bool has_flags() const { return at<3>().valid(); }
-  uint32_t flags() const { return at<3>().as_uint32(); }
-  bool has_command() const { return at<4>().valid(); }
-  uint32_t command() const { return at<4>().as_uint32(); }
-  bool has_len() const { return at<5>().valid(); }
-  uint32_t len() const { return at<5>().as_uint32(); }
-  bool has_protocol() const { return at<6>().valid(); }
-  uint32_t protocol() const { return at<6>().as_uint32(); }
-};
-
-class SmbusReplyFtraceEvent : public ::protozero::Message {
- public:
-  using Decoder = SmbusReplyFtraceEvent_Decoder;
-  enum : int32_t {
-    kAdapterNrFieldNumber = 1,
-    kAddrFieldNumber = 2,
-    kFlagsFieldNumber = 3,
-    kCommandFieldNumber = 4,
-    kLenFieldNumber = 5,
-    kProtocolFieldNumber = 6,
-  };
-
-  using FieldMetadata_AdapterNr =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt32,
-      int32_t,
-      SmbusReplyFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_AdapterNr kAdapterNr() { return {}; }
-  void set_adapter_nr(int32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_AdapterNr::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Addr =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      SmbusReplyFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Addr kAddr() { return {}; }
-  void set_addr(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Addr::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Flags =
-    ::protozero::proto_utils::FieldMetadata<
-      3,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      SmbusReplyFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Flags kFlags() { return {}; }
-  void set_flags(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Flags::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Command =
-    ::protozero::proto_utils::FieldMetadata<
-      4,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      SmbusReplyFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Command kCommand() { return {}; }
-  void set_command(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Command::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Len =
-    ::protozero::proto_utils::FieldMetadata<
-      5,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      SmbusReplyFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Len kLen() { return {}; }
-  void set_len(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Len::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Protocol =
-    ::protozero::proto_utils::FieldMetadata<
-      6,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      SmbusReplyFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Protocol kProtocol() { return {}; }
-  void set_protocol(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Protocol::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-};
-
-class SmbusResultFtraceEvent_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/7, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  SmbusResultFtraceEvent_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit SmbusResultFtraceEvent_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit SmbusResultFtraceEvent_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_adapter_nr() const { return at<1>().valid(); }
-  int32_t adapter_nr() const { return at<1>().as_int32(); }
-  bool has_addr() const { return at<2>().valid(); }
-  uint32_t addr() const { return at<2>().as_uint32(); }
-  bool has_flags() const { return at<3>().valid(); }
-  uint32_t flags() const { return at<3>().as_uint32(); }
-  bool has_read_write() const { return at<4>().valid(); }
-  uint32_t read_write() const { return at<4>().as_uint32(); }
-  bool has_command() const { return at<5>().valid(); }
-  uint32_t command() const { return at<5>().as_uint32(); }
-  bool has_res() const { return at<6>().valid(); }
-  int32_t res() const { return at<6>().as_int32(); }
-  bool has_protocol() const { return at<7>().valid(); }
-  uint32_t protocol() const { return at<7>().as_uint32(); }
-};
-
-class SmbusResultFtraceEvent : public ::protozero::Message {
- public:
-  using Decoder = SmbusResultFtraceEvent_Decoder;
-  enum : int32_t {
-    kAdapterNrFieldNumber = 1,
-    kAddrFieldNumber = 2,
-    kFlagsFieldNumber = 3,
-    kReadWriteFieldNumber = 4,
-    kCommandFieldNumber = 5,
-    kResFieldNumber = 6,
-    kProtocolFieldNumber = 7,
-  };
-
-  using FieldMetadata_AdapterNr =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt32,
-      int32_t,
-      SmbusResultFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_AdapterNr kAdapterNr() { return {}; }
-  void set_adapter_nr(int32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_AdapterNr::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Addr =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      SmbusResultFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Addr kAddr() { return {}; }
-  void set_addr(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Addr::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Flags =
-    ::protozero::proto_utils::FieldMetadata<
-      3,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      SmbusResultFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Flags kFlags() { return {}; }
-  void set_flags(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Flags::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_ReadWrite =
-    ::protozero::proto_utils::FieldMetadata<
-      4,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      SmbusResultFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_ReadWrite kReadWrite() { return {}; }
-  void set_read_write(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_ReadWrite::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Command =
-    ::protozero::proto_utils::FieldMetadata<
-      5,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      SmbusResultFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Command kCommand() { return {}; }
-  void set_command(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Command::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Res =
-    ::protozero::proto_utils::FieldMetadata<
-      6,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt32,
-      int32_t,
-      SmbusResultFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Res kRes() { return {}; }
-  void set_res(int32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Res::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Protocol =
-    ::protozero::proto_utils::FieldMetadata<
-      7,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      SmbusResultFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Protocol kProtocol() { return {}; }
-  void set_protocol(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Protocol::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-};
-
-class SmbusWriteFtraceEvent_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/6, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  SmbusWriteFtraceEvent_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit SmbusWriteFtraceEvent_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit SmbusWriteFtraceEvent_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_adapter_nr() const { return at<1>().valid(); }
-  int32_t adapter_nr() const { return at<1>().as_int32(); }
-  bool has_addr() const { return at<2>().valid(); }
-  uint32_t addr() const { return at<2>().as_uint32(); }
-  bool has_flags() const { return at<3>().valid(); }
-  uint32_t flags() const { return at<3>().as_uint32(); }
-  bool has_command() const { return at<4>().valid(); }
-  uint32_t command() const { return at<4>().as_uint32(); }
-  bool has_len() const { return at<5>().valid(); }
-  uint32_t len() const { return at<5>().as_uint32(); }
-  bool has_protocol() const { return at<6>().valid(); }
-  uint32_t protocol() const { return at<6>().as_uint32(); }
-};
-
-class SmbusWriteFtraceEvent : public ::protozero::Message {
- public:
-  using Decoder = SmbusWriteFtraceEvent_Decoder;
-  enum : int32_t {
-    kAdapterNrFieldNumber = 1,
-    kAddrFieldNumber = 2,
-    kFlagsFieldNumber = 3,
-    kCommandFieldNumber = 4,
-    kLenFieldNumber = 5,
-    kProtocolFieldNumber = 6,
-  };
-
-  using FieldMetadata_AdapterNr =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt32,
-      int32_t,
-      SmbusWriteFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_AdapterNr kAdapterNr() { return {}; }
-  void set_adapter_nr(int32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_AdapterNr::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Addr =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      SmbusWriteFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Addr kAddr() { return {}; }
-  void set_addr(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Addr::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Flags =
-    ::protozero::proto_utils::FieldMetadata<
-      3,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      SmbusWriteFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Flags kFlags() { return {}; }
-  void set_flags(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Flags::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Command =
-    ::protozero::proto_utils::FieldMetadata<
-      4,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      SmbusWriteFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Command kCommand() { return {}; }
-  void set_command(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Command::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Len =
-    ::protozero::proto_utils::FieldMetadata<
-      5,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      SmbusWriteFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Len kLen() { return {}; }
-  void set_len(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Len::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Protocol =
-    ::protozero::proto_utils::FieldMetadata<
-      6,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      SmbusWriteFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Protocol kProtocol() { return {}; }
-  void set_protocol(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Protocol::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-};
-
-class SmbusReadFtraceEvent_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/5, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  SmbusReadFtraceEvent_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit SmbusReadFtraceEvent_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit SmbusReadFtraceEvent_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_adapter_nr() const { return at<1>().valid(); }
-  int32_t adapter_nr() const { return at<1>().as_int32(); }
-  bool has_flags() const { return at<2>().valid(); }
-  uint32_t flags() const { return at<2>().as_uint32(); }
-  bool has_addr() const { return at<3>().valid(); }
-  uint32_t addr() const { return at<3>().as_uint32(); }
-  bool has_command() const { return at<4>().valid(); }
-  uint32_t command() const { return at<4>().as_uint32(); }
-  bool has_protocol() const { return at<5>().valid(); }
-  uint32_t protocol() const { return at<5>().as_uint32(); }
-};
-
-class SmbusReadFtraceEvent : public ::protozero::Message {
- public:
-  using Decoder = SmbusReadFtraceEvent_Decoder;
-  enum : int32_t {
-    kAdapterNrFieldNumber = 1,
-    kFlagsFieldNumber = 2,
-    kAddrFieldNumber = 3,
-    kCommandFieldNumber = 4,
-    kProtocolFieldNumber = 5,
-  };
-
-  using FieldMetadata_AdapterNr =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt32,
-      int32_t,
-      SmbusReadFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_AdapterNr kAdapterNr() { return {}; }
-  void set_adapter_nr(int32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_AdapterNr::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Flags =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      SmbusReadFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Flags kFlags() { return {}; }
-  void set_flags(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Flags::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Addr =
-    ::protozero::proto_utils::FieldMetadata<
-      3,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      SmbusReadFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Addr kAddr() { return {}; }
-  void set_addr(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Addr::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Command =
-    ::protozero::proto_utils::FieldMetadata<
-      4,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      SmbusReadFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Command kCommand() { return {}; }
-  void set_command(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Command::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Protocol =
-    ::protozero::proto_utils::FieldMetadata<
-      5,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      SmbusReadFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Protocol kProtocol() { return {}; }
-  void set_protocol(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Protocol::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-};
-
-class I2cReplyFtraceEvent_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/6, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  I2cReplyFtraceEvent_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit I2cReplyFtraceEvent_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit I2cReplyFtraceEvent_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_adapter_nr() const { return at<1>().valid(); }
-  int32_t adapter_nr() const { return at<1>().as_int32(); }
-  bool has_msg_nr() const { return at<2>().valid(); }
-  uint32_t msg_nr() const { return at<2>().as_uint32(); }
-  bool has_addr() const { return at<3>().valid(); }
-  uint32_t addr() const { return at<3>().as_uint32(); }
-  bool has_flags() const { return at<4>().valid(); }
-  uint32_t flags() const { return at<4>().as_uint32(); }
-  bool has_len() const { return at<5>().valid(); }
-  uint32_t len() const { return at<5>().as_uint32(); }
-  bool has_buf() const { return at<6>().valid(); }
-  uint32_t buf() const { return at<6>().as_uint32(); }
-};
-
-class I2cReplyFtraceEvent : public ::protozero::Message {
- public:
-  using Decoder = I2cReplyFtraceEvent_Decoder;
-  enum : int32_t {
-    kAdapterNrFieldNumber = 1,
-    kMsgNrFieldNumber = 2,
-    kAddrFieldNumber = 3,
-    kFlagsFieldNumber = 4,
-    kLenFieldNumber = 5,
-    kBufFieldNumber = 6,
-  };
-
-  using FieldMetadata_AdapterNr =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt32,
-      int32_t,
-      I2cReplyFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_AdapterNr kAdapterNr() { return {}; }
-  void set_adapter_nr(int32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_AdapterNr::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_MsgNr =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      I2cReplyFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_MsgNr kMsgNr() { return {}; }
-  void set_msg_nr(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_MsgNr::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Addr =
-    ::protozero::proto_utils::FieldMetadata<
-      3,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      I2cReplyFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Addr kAddr() { return {}; }
-  void set_addr(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Addr::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Flags =
-    ::protozero::proto_utils::FieldMetadata<
-      4,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      I2cReplyFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Flags kFlags() { return {}; }
-  void set_flags(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Flags::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Len =
-    ::protozero::proto_utils::FieldMetadata<
-      5,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      I2cReplyFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Len kLen() { return {}; }
-  void set_len(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Len::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Buf =
-    ::protozero::proto_utils::FieldMetadata<
-      6,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      I2cReplyFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Buf kBuf() { return {}; }
-  void set_buf(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Buf::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-};
-
-class I2cResultFtraceEvent_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/3, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  I2cResultFtraceEvent_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit I2cResultFtraceEvent_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit I2cResultFtraceEvent_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_adapter_nr() const { return at<1>().valid(); }
-  int32_t adapter_nr() const { return at<1>().as_int32(); }
-  bool has_nr_msgs() const { return at<2>().valid(); }
-  uint32_t nr_msgs() const { return at<2>().as_uint32(); }
-  bool has_ret() const { return at<3>().valid(); }
-  int32_t ret() const { return at<3>().as_int32(); }
-};
-
-class I2cResultFtraceEvent : public ::protozero::Message {
- public:
-  using Decoder = I2cResultFtraceEvent_Decoder;
-  enum : int32_t {
-    kAdapterNrFieldNumber = 1,
-    kNrMsgsFieldNumber = 2,
-    kRetFieldNumber = 3,
-  };
-
-  using FieldMetadata_AdapterNr =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt32,
-      int32_t,
-      I2cResultFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_AdapterNr kAdapterNr() { return {}; }
-  void set_adapter_nr(int32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_AdapterNr::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_NrMsgs =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      I2cResultFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_NrMsgs kNrMsgs() { return {}; }
-  void set_nr_msgs(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_NrMsgs::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Ret =
-    ::protozero::proto_utils::FieldMetadata<
-      3,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt32,
-      int32_t,
-      I2cResultFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Ret kRet() { return {}; }
-  void set_ret(int32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Ret::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt32>
-        ::Append(*this, field_id, value);
-  }
-};
-
-class I2cWriteFtraceEvent_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/6, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  I2cWriteFtraceEvent_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit I2cWriteFtraceEvent_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit I2cWriteFtraceEvent_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_adapter_nr() const { return at<1>().valid(); }
-  int32_t adapter_nr() const { return at<1>().as_int32(); }
-  bool has_msg_nr() const { return at<2>().valid(); }
-  uint32_t msg_nr() const { return at<2>().as_uint32(); }
-  bool has_addr() const { return at<3>().valid(); }
-  uint32_t addr() const { return at<3>().as_uint32(); }
-  bool has_flags() const { return at<4>().valid(); }
-  uint32_t flags() const { return at<4>().as_uint32(); }
-  bool has_len() const { return at<5>().valid(); }
-  uint32_t len() const { return at<5>().as_uint32(); }
-  bool has_buf() const { return at<6>().valid(); }
-  uint32_t buf() const { return at<6>().as_uint32(); }
-};
-
-class I2cWriteFtraceEvent : public ::protozero::Message {
- public:
-  using Decoder = I2cWriteFtraceEvent_Decoder;
-  enum : int32_t {
-    kAdapterNrFieldNumber = 1,
-    kMsgNrFieldNumber = 2,
-    kAddrFieldNumber = 3,
-    kFlagsFieldNumber = 4,
-    kLenFieldNumber = 5,
-    kBufFieldNumber = 6,
-  };
-
-  using FieldMetadata_AdapterNr =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt32,
-      int32_t,
-      I2cWriteFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_AdapterNr kAdapterNr() { return {}; }
-  void set_adapter_nr(int32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_AdapterNr::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_MsgNr =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      I2cWriteFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_MsgNr kMsgNr() { return {}; }
-  void set_msg_nr(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_MsgNr::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Addr =
-    ::protozero::proto_utils::FieldMetadata<
-      3,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      I2cWriteFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Addr kAddr() { return {}; }
-  void set_addr(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Addr::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Flags =
-    ::protozero::proto_utils::FieldMetadata<
-      4,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      I2cWriteFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Flags kFlags() { return {}; }
-  void set_flags(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Flags::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Len =
-    ::protozero::proto_utils::FieldMetadata<
-      5,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      I2cWriteFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Len kLen() { return {}; }
-  void set_len(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Len::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Buf =
-    ::protozero::proto_utils::FieldMetadata<
-      6,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      I2cWriteFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Buf kBuf() { return {}; }
-  void set_buf(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Buf::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-};
-
-class I2cReadFtraceEvent_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/5, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  I2cReadFtraceEvent_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit I2cReadFtraceEvent_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit I2cReadFtraceEvent_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_adapter_nr() const { return at<1>().valid(); }
-  int32_t adapter_nr() const { return at<1>().as_int32(); }
-  bool has_msg_nr() const { return at<2>().valid(); }
-  uint32_t msg_nr() const { return at<2>().as_uint32(); }
-  bool has_addr() const { return at<3>().valid(); }
-  uint32_t addr() const { return at<3>().as_uint32(); }
-  bool has_flags() const { return at<4>().valid(); }
-  uint32_t flags() const { return at<4>().as_uint32(); }
-  bool has_len() const { return at<5>().valid(); }
-  uint32_t len() const { return at<5>().as_uint32(); }
-};
-
-class I2cReadFtraceEvent : public ::protozero::Message {
- public:
-  using Decoder = I2cReadFtraceEvent_Decoder;
-  enum : int32_t {
-    kAdapterNrFieldNumber = 1,
-    kMsgNrFieldNumber = 2,
-    kAddrFieldNumber = 3,
-    kFlagsFieldNumber = 4,
-    kLenFieldNumber = 5,
-  };
-
-  using FieldMetadata_AdapterNr =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt32,
-      int32_t,
-      I2cReadFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_AdapterNr kAdapterNr() { return {}; }
-  void set_adapter_nr(int32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_AdapterNr::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_MsgNr =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      I2cReadFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_MsgNr kMsgNr() { return {}; }
-  void set_msg_nr(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_MsgNr::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Addr =
-    ::protozero::proto_utils::FieldMetadata<
-      3,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      I2cReadFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Addr kAddr() { return {}; }
-  void set_addr(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Addr::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Flags =
-    ::protozero::proto_utils::FieldMetadata<
-      4,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      I2cReadFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Flags kFlags() { return {}; }
-  void set_flags(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Flags::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Len =
-    ::protozero::proto_utils::FieldMetadata<
-      5,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      I2cReadFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Len kLen() { return {}; }
-  void set_len(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Len::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-};
-
-} // Namespace.
-} // Namespace.
-} // Namespace.
-#endif  // Include guard.
-// gen_amalgamated begin header: gen/protos/perfetto/trace/ftrace/ion.pbzero.h
-// Autogenerated by the ProtoZero compiler plugin. DO NOT EDIT.
-
-#ifndef PERFETTO_PROTOS_PROTOS_PERFETTO_TRACE_FTRACE_ION_PROTO_H_
-#define PERFETTO_PROTOS_PROTOS_PERFETTO_TRACE_FTRACE_ION_PROTO_H_
-
-#include <stddef.h>
-#include <stdint.h>
-
-// gen_amalgamated expanded: #include "perfetto/protozero/field_writer.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/message.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/packed_repeated_fields.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/proto_decoder.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/proto_utils.h"
-
-namespace perfetto {
-namespace protos {
-namespace pbzero {
-
-
-class IonStatFtraceEvent_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/3, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  IonStatFtraceEvent_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit IonStatFtraceEvent_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit IonStatFtraceEvent_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_buffer_id() const { return at<1>().valid(); }
-  uint32_t buffer_id() const { return at<1>().as_uint32(); }
-  bool has_len() const { return at<2>().valid(); }
-  int64_t len() const { return at<2>().as_int64(); }
-  bool has_total_allocated() const { return at<3>().valid(); }
-  uint64_t total_allocated() const { return at<3>().as_uint64(); }
-};
-
-class IonStatFtraceEvent : public ::protozero::Message {
- public:
-  using Decoder = IonStatFtraceEvent_Decoder;
-  enum : int32_t {
-    kBufferIdFieldNumber = 1,
-    kLenFieldNumber = 2,
-    kTotalAllocatedFieldNumber = 3,
-  };
-
-  using FieldMetadata_BufferId =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      IonStatFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_BufferId kBufferId() { return {}; }
-  void set_buffer_id(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_BufferId::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Len =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt64,
-      int64_t,
-      IonStatFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Len kLen() { return {}; }
-  void set_len(int64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Len::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_TotalAllocated =
-    ::protozero::proto_utils::FieldMetadata<
-      3,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      IonStatFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_TotalAllocated kTotalAllocated() { return {}; }
-  void set_total_allocated(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_TotalAllocated::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-};
-
-} // Namespace.
-} // Namespace.
-} // Namespace.
-#endif  // Include guard.
-// gen_amalgamated begin header: gen/protos/perfetto/trace/ftrace/ipi.pbzero.h
-// Autogenerated by the ProtoZero compiler plugin. DO NOT EDIT.
-
-#ifndef PERFETTO_PROTOS_PROTOS_PERFETTO_TRACE_FTRACE_IPI_PROTO_H_
-#define PERFETTO_PROTOS_PROTOS_PERFETTO_TRACE_FTRACE_IPI_PROTO_H_
-
-#include <stddef.h>
-#include <stdint.h>
-
-// gen_amalgamated expanded: #include "perfetto/protozero/field_writer.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/message.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/packed_repeated_fields.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/proto_decoder.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/proto_utils.h"
-
-namespace perfetto {
-namespace protos {
-namespace pbzero {
-
-
-class IpiRaiseFtraceEvent_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/2, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  IpiRaiseFtraceEvent_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit IpiRaiseFtraceEvent_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit IpiRaiseFtraceEvent_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_target_cpus() const { return at<1>().valid(); }
-  uint32_t target_cpus() const { return at<1>().as_uint32(); }
-  bool has_reason() const { return at<2>().valid(); }
-  ::protozero::ConstChars reason() const { return at<2>().as_string(); }
-};
-
-class IpiRaiseFtraceEvent : public ::protozero::Message {
- public:
-  using Decoder = IpiRaiseFtraceEvent_Decoder;
-  enum : int32_t {
-    kTargetCpusFieldNumber = 1,
-    kReasonFieldNumber = 2,
-  };
-
-  using FieldMetadata_TargetCpus =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      IpiRaiseFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_TargetCpus kTargetCpus() { return {}; }
-  void set_target_cpus(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_TargetCpus::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Reason =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kString,
-      std::string,
-      IpiRaiseFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Reason kReason() { return {}; }
-  void set_reason(const char* data, size_t size) {
-    AppendBytes(FieldMetadata_Reason::kFieldId, data, size);
-  }
-  void set_reason(std::string value) {
-    static constexpr uint32_t field_id = FieldMetadata_Reason::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kString>
-        ::Append(*this, field_id, value);
-  }
-};
-
-class IpiExitFtraceEvent_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/1, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  IpiExitFtraceEvent_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit IpiExitFtraceEvent_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit IpiExitFtraceEvent_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_reason() const { return at<1>().valid(); }
-  ::protozero::ConstChars reason() const { return at<1>().as_string(); }
-};
-
-class IpiExitFtraceEvent : public ::protozero::Message {
- public:
-  using Decoder = IpiExitFtraceEvent_Decoder;
-  enum : int32_t {
-    kReasonFieldNumber = 1,
-  };
-
-  using FieldMetadata_Reason =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kString,
-      std::string,
-      IpiExitFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Reason kReason() { return {}; }
-  void set_reason(const char* data, size_t size) {
-    AppendBytes(FieldMetadata_Reason::kFieldId, data, size);
-  }
-  void set_reason(std::string value) {
-    static constexpr uint32_t field_id = FieldMetadata_Reason::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kString>
-        ::Append(*this, field_id, value);
-  }
-};
-
-class IpiEntryFtraceEvent_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/1, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  IpiEntryFtraceEvent_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit IpiEntryFtraceEvent_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit IpiEntryFtraceEvent_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_reason() const { return at<1>().valid(); }
-  ::protozero::ConstChars reason() const { return at<1>().as_string(); }
-};
-
-class IpiEntryFtraceEvent : public ::protozero::Message {
- public:
-  using Decoder = IpiEntryFtraceEvent_Decoder;
-  enum : int32_t {
-    kReasonFieldNumber = 1,
-  };
-
-  using FieldMetadata_Reason =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kString,
-      std::string,
-      IpiEntryFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Reason kReason() { return {}; }
-  void set_reason(const char* data, size_t size) {
-    AppendBytes(FieldMetadata_Reason::kFieldId, data, size);
-  }
-  void set_reason(std::string value) {
-    static constexpr uint32_t field_id = FieldMetadata_Reason::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kString>
-        ::Append(*this, field_id, value);
-  }
-};
-
-} // Namespace.
-} // Namespace.
-} // Namespace.
-#endif  // Include guard.
-// gen_amalgamated begin header: gen/protos/perfetto/trace/ftrace/irq.pbzero.h
-// Autogenerated by the ProtoZero compiler plugin. DO NOT EDIT.
-
-#ifndef PERFETTO_PROTOS_PROTOS_PERFETTO_TRACE_FTRACE_IRQ_PROTO_H_
-#define PERFETTO_PROTOS_PROTOS_PERFETTO_TRACE_FTRACE_IRQ_PROTO_H_
-
-#include <stddef.h>
-#include <stdint.h>
-
-// gen_amalgamated expanded: #include "perfetto/protozero/field_writer.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/message.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/packed_repeated_fields.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/proto_decoder.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/proto_utils.h"
-
-namespace perfetto {
-namespace protos {
-namespace pbzero {
-
-
-class IrqHandlerExitFtraceEvent_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/2, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  IrqHandlerExitFtraceEvent_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit IrqHandlerExitFtraceEvent_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit IrqHandlerExitFtraceEvent_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_irq() const { return at<1>().valid(); }
-  int32_t irq() const { return at<1>().as_int32(); }
-  bool has_ret() const { return at<2>().valid(); }
-  int32_t ret() const { return at<2>().as_int32(); }
-};
-
-class IrqHandlerExitFtraceEvent : public ::protozero::Message {
- public:
-  using Decoder = IrqHandlerExitFtraceEvent_Decoder;
-  enum : int32_t {
-    kIrqFieldNumber = 1,
-    kRetFieldNumber = 2,
-  };
-
-  using FieldMetadata_Irq =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt32,
-      int32_t,
-      IrqHandlerExitFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Irq kIrq() { return {}; }
-  void set_irq(int32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Irq::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Ret =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt32,
-      int32_t,
-      IrqHandlerExitFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Ret kRet() { return {}; }
-  void set_ret(int32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Ret::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt32>
-        ::Append(*this, field_id, value);
-  }
-};
-
-class IrqHandlerEntryFtraceEvent_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/3, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  IrqHandlerEntryFtraceEvent_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit IrqHandlerEntryFtraceEvent_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit IrqHandlerEntryFtraceEvent_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_irq() const { return at<1>().valid(); }
-  int32_t irq() const { return at<1>().as_int32(); }
-  bool has_name() const { return at<2>().valid(); }
-  ::protozero::ConstChars name() const { return at<2>().as_string(); }
-  bool has_handler() const { return at<3>().valid(); }
-  uint32_t handler() const { return at<3>().as_uint32(); }
-};
-
-class IrqHandlerEntryFtraceEvent : public ::protozero::Message {
- public:
-  using Decoder = IrqHandlerEntryFtraceEvent_Decoder;
-  enum : int32_t {
-    kIrqFieldNumber = 1,
-    kNameFieldNumber = 2,
-    kHandlerFieldNumber = 3,
-  };
-
-  using FieldMetadata_Irq =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt32,
-      int32_t,
-      IrqHandlerEntryFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Irq kIrq() { return {}; }
-  void set_irq(int32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Irq::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Name =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kString,
-      std::string,
-      IrqHandlerEntryFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Name kName() { return {}; }
-  void set_name(const char* data, size_t size) {
-    AppendBytes(FieldMetadata_Name::kFieldId, data, size);
-  }
-  void set_name(std::string value) {
-    static constexpr uint32_t field_id = FieldMetadata_Name::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kString>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Handler =
-    ::protozero::proto_utils::FieldMetadata<
-      3,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      IrqHandlerEntryFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Handler kHandler() { return {}; }
-  void set_handler(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Handler::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-};
-
-class SoftirqRaiseFtraceEvent_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/1, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  SoftirqRaiseFtraceEvent_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit SoftirqRaiseFtraceEvent_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit SoftirqRaiseFtraceEvent_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_vec() const { return at<1>().valid(); }
-  uint32_t vec() const { return at<1>().as_uint32(); }
-};
-
-class SoftirqRaiseFtraceEvent : public ::protozero::Message {
- public:
-  using Decoder = SoftirqRaiseFtraceEvent_Decoder;
-  enum : int32_t {
-    kVecFieldNumber = 1,
-  };
-
-  using FieldMetadata_Vec =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      SoftirqRaiseFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Vec kVec() { return {}; }
-  void set_vec(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Vec::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-};
-
-class SoftirqExitFtraceEvent_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/1, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  SoftirqExitFtraceEvent_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit SoftirqExitFtraceEvent_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit SoftirqExitFtraceEvent_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_vec() const { return at<1>().valid(); }
-  uint32_t vec() const { return at<1>().as_uint32(); }
-};
-
-class SoftirqExitFtraceEvent : public ::protozero::Message {
- public:
-  using Decoder = SoftirqExitFtraceEvent_Decoder;
-  enum : int32_t {
-    kVecFieldNumber = 1,
-  };
-
-  using FieldMetadata_Vec =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      SoftirqExitFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Vec kVec() { return {}; }
-  void set_vec(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Vec::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-};
-
-class SoftirqEntryFtraceEvent_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/1, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  SoftirqEntryFtraceEvent_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit SoftirqEntryFtraceEvent_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit SoftirqEntryFtraceEvent_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_vec() const { return at<1>().valid(); }
-  uint32_t vec() const { return at<1>().as_uint32(); }
-};
-
-class SoftirqEntryFtraceEvent : public ::protozero::Message {
- public:
-  using Decoder = SoftirqEntryFtraceEvent_Decoder;
-  enum : int32_t {
-    kVecFieldNumber = 1,
-  };
-
-  using FieldMetadata_Vec =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      SoftirqEntryFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Vec kVec() { return {}; }
-  void set_vec(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Vec::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-};
-
-} // Namespace.
-} // Namespace.
-} // Namespace.
-#endif  // Include guard.
-// gen_amalgamated begin header: gen/protos/perfetto/trace/ftrace/kmem.pbzero.h
-// Autogenerated by the ProtoZero compiler plugin. DO NOT EDIT.
-
-#ifndef PERFETTO_PROTOS_PROTOS_PERFETTO_TRACE_FTRACE_KMEM_PROTO_H_
-#define PERFETTO_PROTOS_PROTOS_PERFETTO_TRACE_FTRACE_KMEM_PROTO_H_
-
-#include <stddef.h>
-#include <stdint.h>
-
-// gen_amalgamated expanded: #include "perfetto/protozero/field_writer.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/message.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/packed_repeated_fields.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/proto_decoder.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/proto_utils.h"
-
-namespace perfetto {
-namespace protos {
-namespace pbzero {
-
-
-class IonBufferDestroyFtraceEvent_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/2, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  IonBufferDestroyFtraceEvent_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit IonBufferDestroyFtraceEvent_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit IonBufferDestroyFtraceEvent_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_addr() const { return at<1>().valid(); }
-  uint64_t addr() const { return at<1>().as_uint64(); }
-  bool has_len() const { return at<2>().valid(); }
-  uint64_t len() const { return at<2>().as_uint64(); }
-};
-
-class IonBufferDestroyFtraceEvent : public ::protozero::Message {
- public:
-  using Decoder = IonBufferDestroyFtraceEvent_Decoder;
-  enum : int32_t {
-    kAddrFieldNumber = 1,
-    kLenFieldNumber = 2,
-  };
-
-  using FieldMetadata_Addr =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      IonBufferDestroyFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Addr kAddr() { return {}; }
-  void set_addr(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Addr::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Len =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      IonBufferDestroyFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Len kLen() { return {}; }
-  void set_len(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Len::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-};
-
-class IonBufferCreateFtraceEvent_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/2, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  IonBufferCreateFtraceEvent_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit IonBufferCreateFtraceEvent_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit IonBufferCreateFtraceEvent_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_addr() const { return at<1>().valid(); }
-  uint64_t addr() const { return at<1>().as_uint64(); }
-  bool has_len() const { return at<2>().valid(); }
-  uint64_t len() const { return at<2>().as_uint64(); }
-};
-
-class IonBufferCreateFtraceEvent : public ::protozero::Message {
- public:
-  using Decoder = IonBufferCreateFtraceEvent_Decoder;
-  enum : int32_t {
-    kAddrFieldNumber = 1,
-    kLenFieldNumber = 2,
-  };
-
-  using FieldMetadata_Addr =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      IonBufferCreateFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Addr kAddr() { return {}; }
-  void set_addr(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Addr::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Len =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      IonBufferCreateFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Len kLen() { return {}; }
-  void set_len(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Len::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-};
-
-class IonHeapGrowFtraceEvent_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/3, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  IonHeapGrowFtraceEvent_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit IonHeapGrowFtraceEvent_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit IonHeapGrowFtraceEvent_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_heap_name() const { return at<1>().valid(); }
-  ::protozero::ConstChars heap_name() const { return at<1>().as_string(); }
-  bool has_len() const { return at<2>().valid(); }
-  uint64_t len() const { return at<2>().as_uint64(); }
-  bool has_total_allocated() const { return at<3>().valid(); }
-  int64_t total_allocated() const { return at<3>().as_int64(); }
-};
-
-class IonHeapGrowFtraceEvent : public ::protozero::Message {
- public:
-  using Decoder = IonHeapGrowFtraceEvent_Decoder;
-  enum : int32_t {
-    kHeapNameFieldNumber = 1,
-    kLenFieldNumber = 2,
-    kTotalAllocatedFieldNumber = 3,
-  };
-
-  using FieldMetadata_HeapName =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kString,
-      std::string,
-      IonHeapGrowFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_HeapName kHeapName() { return {}; }
-  void set_heap_name(const char* data, size_t size) {
-    AppendBytes(FieldMetadata_HeapName::kFieldId, data, size);
-  }
-  void set_heap_name(std::string value) {
-    static constexpr uint32_t field_id = FieldMetadata_HeapName::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kString>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Len =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      IonHeapGrowFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Len kLen() { return {}; }
-  void set_len(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Len::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_TotalAllocated =
-    ::protozero::proto_utils::FieldMetadata<
-      3,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt64,
-      int64_t,
-      IonHeapGrowFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_TotalAllocated kTotalAllocated() { return {}; }
-  void set_total_allocated(int64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_TotalAllocated::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt64>
-        ::Append(*this, field_id, value);
-  }
-};
-
-class IonHeapShrinkFtraceEvent_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/3, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  IonHeapShrinkFtraceEvent_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit IonHeapShrinkFtraceEvent_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit IonHeapShrinkFtraceEvent_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_heap_name() const { return at<1>().valid(); }
-  ::protozero::ConstChars heap_name() const { return at<1>().as_string(); }
-  bool has_len() const { return at<2>().valid(); }
-  uint64_t len() const { return at<2>().as_uint64(); }
-  bool has_total_allocated() const { return at<3>().valid(); }
-  int64_t total_allocated() const { return at<3>().as_int64(); }
-};
-
-class IonHeapShrinkFtraceEvent : public ::protozero::Message {
- public:
-  using Decoder = IonHeapShrinkFtraceEvent_Decoder;
-  enum : int32_t {
-    kHeapNameFieldNumber = 1,
-    kLenFieldNumber = 2,
-    kTotalAllocatedFieldNumber = 3,
-  };
-
-  using FieldMetadata_HeapName =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kString,
-      std::string,
-      IonHeapShrinkFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_HeapName kHeapName() { return {}; }
-  void set_heap_name(const char* data, size_t size) {
-    AppendBytes(FieldMetadata_HeapName::kFieldId, data, size);
-  }
-  void set_heap_name(std::string value) {
-    static constexpr uint32_t field_id = FieldMetadata_HeapName::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kString>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Len =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      IonHeapShrinkFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Len kLen() { return {}; }
-  void set_len(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Len::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_TotalAllocated =
-    ::protozero::proto_utils::FieldMetadata<
-      3,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt64,
-      int64_t,
-      IonHeapShrinkFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_TotalAllocated kTotalAllocated() { return {}; }
-  void set_total_allocated(int64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_TotalAllocated::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt64>
-        ::Append(*this, field_id, value);
-  }
-};
-
-class RssStatFtraceEvent_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/4, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  RssStatFtraceEvent_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit RssStatFtraceEvent_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit RssStatFtraceEvent_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_member() const { return at<1>().valid(); }
-  int32_t member() const { return at<1>().as_int32(); }
-  bool has_size() const { return at<2>().valid(); }
-  int64_t size() const { return at<2>().as_int64(); }
-  bool has_curr() const { return at<3>().valid(); }
-  uint32_t curr() const { return at<3>().as_uint32(); }
-  bool has_mm_id() const { return at<4>().valid(); }
-  uint32_t mm_id() const { return at<4>().as_uint32(); }
-};
-
-class RssStatFtraceEvent : public ::protozero::Message {
- public:
-  using Decoder = RssStatFtraceEvent_Decoder;
-  enum : int32_t {
-    kMemberFieldNumber = 1,
-    kSizeFieldNumber = 2,
-    kCurrFieldNumber = 3,
-    kMmIdFieldNumber = 4,
-  };
-
-  using FieldMetadata_Member =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt32,
-      int32_t,
-      RssStatFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Member kMember() { return {}; }
-  void set_member(int32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Member::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Size =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt64,
-      int64_t,
-      RssStatFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Size kSize() { return {}; }
-  void set_size(int64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Size::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Curr =
-    ::protozero::proto_utils::FieldMetadata<
-      3,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      RssStatFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Curr kCurr() { return {}; }
-  void set_curr(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Curr::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_MmId =
-    ::protozero::proto_utils::FieldMetadata<
-      4,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      RssStatFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_MmId kMmId() { return {}; }
-  void set_mm_id(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_MmId::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-};
-
-class MmPagePcpuDrainFtraceEvent_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/4, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  MmPagePcpuDrainFtraceEvent_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit MmPagePcpuDrainFtraceEvent_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit MmPagePcpuDrainFtraceEvent_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_migratetype() const { return at<1>().valid(); }
-  int32_t migratetype() const { return at<1>().as_int32(); }
-  bool has_order() const { return at<2>().valid(); }
-  uint32_t order() const { return at<2>().as_uint32(); }
-  bool has_page() const { return at<3>().valid(); }
-  uint64_t page() const { return at<3>().as_uint64(); }
-  bool has_pfn() const { return at<4>().valid(); }
-  uint64_t pfn() const { return at<4>().as_uint64(); }
-};
-
-class MmPagePcpuDrainFtraceEvent : public ::protozero::Message {
- public:
-  using Decoder = MmPagePcpuDrainFtraceEvent_Decoder;
-  enum : int32_t {
-    kMigratetypeFieldNumber = 1,
-    kOrderFieldNumber = 2,
-    kPageFieldNumber = 3,
-    kPfnFieldNumber = 4,
-  };
-
-  using FieldMetadata_Migratetype =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt32,
-      int32_t,
-      MmPagePcpuDrainFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Migratetype kMigratetype() { return {}; }
-  void set_migratetype(int32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Migratetype::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Order =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      MmPagePcpuDrainFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Order kOrder() { return {}; }
-  void set_order(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Order::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Page =
-    ::protozero::proto_utils::FieldMetadata<
-      3,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      MmPagePcpuDrainFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Page kPage() { return {}; }
-  void set_page(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Page::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Pfn =
-    ::protozero::proto_utils::FieldMetadata<
-      4,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      MmPagePcpuDrainFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Pfn kPfn() { return {}; }
-  void set_pfn(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Pfn::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-};
-
-class MmPageFreeBatchedFtraceEvent_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/3, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  MmPageFreeBatchedFtraceEvent_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit MmPageFreeBatchedFtraceEvent_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit MmPageFreeBatchedFtraceEvent_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_cold() const { return at<1>().valid(); }
-  int32_t cold() const { return at<1>().as_int32(); }
-  bool has_page() const { return at<2>().valid(); }
-  uint64_t page() const { return at<2>().as_uint64(); }
-  bool has_pfn() const { return at<3>().valid(); }
-  uint64_t pfn() const { return at<3>().as_uint64(); }
-};
-
-class MmPageFreeBatchedFtraceEvent : public ::protozero::Message {
- public:
-  using Decoder = MmPageFreeBatchedFtraceEvent_Decoder;
-  enum : int32_t {
-    kColdFieldNumber = 1,
-    kPageFieldNumber = 2,
-    kPfnFieldNumber = 3,
-  };
-
-  using FieldMetadata_Cold =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt32,
-      int32_t,
-      MmPageFreeBatchedFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Cold kCold() { return {}; }
-  void set_cold(int32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Cold::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Page =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      MmPageFreeBatchedFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Page kPage() { return {}; }
-  void set_page(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Page::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Pfn =
-    ::protozero::proto_utils::FieldMetadata<
-      3,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      MmPageFreeBatchedFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Pfn kPfn() { return {}; }
-  void set_pfn(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Pfn::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-};
-
-class MmPageFreeFtraceEvent_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/3, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  MmPageFreeFtraceEvent_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit MmPageFreeFtraceEvent_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit MmPageFreeFtraceEvent_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_order() const { return at<1>().valid(); }
-  uint32_t order() const { return at<1>().as_uint32(); }
-  bool has_page() const { return at<2>().valid(); }
-  uint64_t page() const { return at<2>().as_uint64(); }
-  bool has_pfn() const { return at<3>().valid(); }
-  uint64_t pfn() const { return at<3>().as_uint64(); }
-};
-
-class MmPageFreeFtraceEvent : public ::protozero::Message {
- public:
-  using Decoder = MmPageFreeFtraceEvent_Decoder;
-  enum : int32_t {
-    kOrderFieldNumber = 1,
-    kPageFieldNumber = 2,
-    kPfnFieldNumber = 3,
-  };
-
-  using FieldMetadata_Order =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      MmPageFreeFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Order kOrder() { return {}; }
-  void set_order(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Order::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Page =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      MmPageFreeFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Page kPage() { return {}; }
-  void set_page(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Page::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Pfn =
-    ::protozero::proto_utils::FieldMetadata<
-      3,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      MmPageFreeFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Pfn kPfn() { return {}; }
-  void set_pfn(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Pfn::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-};
-
-class MmPageAllocZoneLockedFtraceEvent_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/4, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  MmPageAllocZoneLockedFtraceEvent_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit MmPageAllocZoneLockedFtraceEvent_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit MmPageAllocZoneLockedFtraceEvent_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_migratetype() const { return at<1>().valid(); }
-  int32_t migratetype() const { return at<1>().as_int32(); }
-  bool has_order() const { return at<2>().valid(); }
-  uint32_t order() const { return at<2>().as_uint32(); }
-  bool has_page() const { return at<3>().valid(); }
-  uint64_t page() const { return at<3>().as_uint64(); }
-  bool has_pfn() const { return at<4>().valid(); }
-  uint64_t pfn() const { return at<4>().as_uint64(); }
-};
-
-class MmPageAllocZoneLockedFtraceEvent : public ::protozero::Message {
- public:
-  using Decoder = MmPageAllocZoneLockedFtraceEvent_Decoder;
-  enum : int32_t {
-    kMigratetypeFieldNumber = 1,
-    kOrderFieldNumber = 2,
-    kPageFieldNumber = 3,
-    kPfnFieldNumber = 4,
-  };
-
-  using FieldMetadata_Migratetype =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt32,
-      int32_t,
-      MmPageAllocZoneLockedFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Migratetype kMigratetype() { return {}; }
-  void set_migratetype(int32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Migratetype::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Order =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      MmPageAllocZoneLockedFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Order kOrder() { return {}; }
-  void set_order(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Order::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Page =
-    ::protozero::proto_utils::FieldMetadata<
-      3,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      MmPageAllocZoneLockedFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Page kPage() { return {}; }
-  void set_page(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Page::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Pfn =
-    ::protozero::proto_utils::FieldMetadata<
-      4,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      MmPageAllocZoneLockedFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Pfn kPfn() { return {}; }
-  void set_pfn(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Pfn::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-};
-
-class MmPageAllocExtfragFtraceEvent_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/7, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  MmPageAllocExtfragFtraceEvent_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit MmPageAllocExtfragFtraceEvent_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit MmPageAllocExtfragFtraceEvent_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_alloc_migratetype() const { return at<1>().valid(); }
-  int32_t alloc_migratetype() const { return at<1>().as_int32(); }
-  bool has_alloc_order() const { return at<2>().valid(); }
-  int32_t alloc_order() const { return at<2>().as_int32(); }
-  bool has_fallback_migratetype() const { return at<3>().valid(); }
-  int32_t fallback_migratetype() const { return at<3>().as_int32(); }
-  bool has_fallback_order() const { return at<4>().valid(); }
-  int32_t fallback_order() const { return at<4>().as_int32(); }
-  bool has_page() const { return at<5>().valid(); }
-  uint64_t page() const { return at<5>().as_uint64(); }
-  bool has_change_ownership() const { return at<6>().valid(); }
-  int32_t change_ownership() const { return at<6>().as_int32(); }
-  bool has_pfn() const { return at<7>().valid(); }
-  uint64_t pfn() const { return at<7>().as_uint64(); }
-};
-
-class MmPageAllocExtfragFtraceEvent : public ::protozero::Message {
- public:
-  using Decoder = MmPageAllocExtfragFtraceEvent_Decoder;
-  enum : int32_t {
-    kAllocMigratetypeFieldNumber = 1,
-    kAllocOrderFieldNumber = 2,
-    kFallbackMigratetypeFieldNumber = 3,
-    kFallbackOrderFieldNumber = 4,
-    kPageFieldNumber = 5,
-    kChangeOwnershipFieldNumber = 6,
-    kPfnFieldNumber = 7,
-  };
-
-  using FieldMetadata_AllocMigratetype =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt32,
-      int32_t,
-      MmPageAllocExtfragFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_AllocMigratetype kAllocMigratetype() { return {}; }
-  void set_alloc_migratetype(int32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_AllocMigratetype::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_AllocOrder =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt32,
-      int32_t,
-      MmPageAllocExtfragFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_AllocOrder kAllocOrder() { return {}; }
-  void set_alloc_order(int32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_AllocOrder::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_FallbackMigratetype =
-    ::protozero::proto_utils::FieldMetadata<
-      3,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt32,
-      int32_t,
-      MmPageAllocExtfragFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_FallbackMigratetype kFallbackMigratetype() { return {}; }
-  void set_fallback_migratetype(int32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_FallbackMigratetype::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_FallbackOrder =
-    ::protozero::proto_utils::FieldMetadata<
-      4,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt32,
-      int32_t,
-      MmPageAllocExtfragFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_FallbackOrder kFallbackOrder() { return {}; }
-  void set_fallback_order(int32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_FallbackOrder::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Page =
-    ::protozero::proto_utils::FieldMetadata<
-      5,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      MmPageAllocExtfragFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Page kPage() { return {}; }
-  void set_page(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Page::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_ChangeOwnership =
-    ::protozero::proto_utils::FieldMetadata<
-      6,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt32,
-      int32_t,
-      MmPageAllocExtfragFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_ChangeOwnership kChangeOwnership() { return {}; }
-  void set_change_ownership(int32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_ChangeOwnership::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Pfn =
-    ::protozero::proto_utils::FieldMetadata<
-      7,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      MmPageAllocExtfragFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Pfn kPfn() { return {}; }
-  void set_pfn(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Pfn::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-};
-
-class MmPageAllocFtraceEvent_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/5, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  MmPageAllocFtraceEvent_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit MmPageAllocFtraceEvent_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit MmPageAllocFtraceEvent_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_gfp_flags() const { return at<1>().valid(); }
-  uint32_t gfp_flags() const { return at<1>().as_uint32(); }
-  bool has_migratetype() const { return at<2>().valid(); }
-  int32_t migratetype() const { return at<2>().as_int32(); }
-  bool has_order() const { return at<3>().valid(); }
-  uint32_t order() const { return at<3>().as_uint32(); }
-  bool has_page() const { return at<4>().valid(); }
-  uint64_t page() const { return at<4>().as_uint64(); }
-  bool has_pfn() const { return at<5>().valid(); }
-  uint64_t pfn() const { return at<5>().as_uint64(); }
-};
-
-class MmPageAllocFtraceEvent : public ::protozero::Message {
- public:
-  using Decoder = MmPageAllocFtraceEvent_Decoder;
-  enum : int32_t {
-    kGfpFlagsFieldNumber = 1,
-    kMigratetypeFieldNumber = 2,
-    kOrderFieldNumber = 3,
-    kPageFieldNumber = 4,
-    kPfnFieldNumber = 5,
-  };
-
-  using FieldMetadata_GfpFlags =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      MmPageAllocFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_GfpFlags kGfpFlags() { return {}; }
-  void set_gfp_flags(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_GfpFlags::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Migratetype =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt32,
-      int32_t,
-      MmPageAllocFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Migratetype kMigratetype() { return {}; }
-  void set_migratetype(int32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Migratetype::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Order =
-    ::protozero::proto_utils::FieldMetadata<
-      3,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      MmPageAllocFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Order kOrder() { return {}; }
-  void set_order(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Order::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Page =
-    ::protozero::proto_utils::FieldMetadata<
-      4,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      MmPageAllocFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Page kPage() { return {}; }
-  void set_page(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Page::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Pfn =
-    ::protozero::proto_utils::FieldMetadata<
-      5,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      MmPageAllocFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Pfn kPfn() { return {}; }
-  void set_pfn(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Pfn::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-};
-
-class MigrateRetryFtraceEvent_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/1, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  MigrateRetryFtraceEvent_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit MigrateRetryFtraceEvent_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit MigrateRetryFtraceEvent_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_tries() const { return at<1>().valid(); }
-  int32_t tries() const { return at<1>().as_int32(); }
-};
-
-class MigrateRetryFtraceEvent : public ::protozero::Message {
- public:
-  using Decoder = MigrateRetryFtraceEvent_Decoder;
-  enum : int32_t {
-    kTriesFieldNumber = 1,
-  };
-
-  using FieldMetadata_Tries =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt32,
-      int32_t,
-      MigrateRetryFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Tries kTries() { return {}; }
-  void set_tries(int32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Tries::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt32>
-        ::Append(*this, field_id, value);
-  }
-};
-
-class MigratePagesStartFtraceEvent_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/1, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  MigratePagesStartFtraceEvent_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit MigratePagesStartFtraceEvent_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit MigratePagesStartFtraceEvent_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_mode() const { return at<1>().valid(); }
-  int32_t mode() const { return at<1>().as_int32(); }
-};
-
-class MigratePagesStartFtraceEvent : public ::protozero::Message {
- public:
-  using Decoder = MigratePagesStartFtraceEvent_Decoder;
-  enum : int32_t {
-    kModeFieldNumber = 1,
-  };
-
-  using FieldMetadata_Mode =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt32,
-      int32_t,
-      MigratePagesStartFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Mode kMode() { return {}; }
-  void set_mode(int32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Mode::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt32>
-        ::Append(*this, field_id, value);
-  }
-};
-
-class MigratePagesEndFtraceEvent_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/1, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  MigratePagesEndFtraceEvent_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit MigratePagesEndFtraceEvent_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit MigratePagesEndFtraceEvent_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_mode() const { return at<1>().valid(); }
-  int32_t mode() const { return at<1>().as_int32(); }
-};
-
-class MigratePagesEndFtraceEvent : public ::protozero::Message {
- public:
-  using Decoder = MigratePagesEndFtraceEvent_Decoder;
-  enum : int32_t {
-    kModeFieldNumber = 1,
-  };
-
-  using FieldMetadata_Mode =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt32,
-      int32_t,
-      MigratePagesEndFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Mode kMode() { return {}; }
-  void set_mode(int32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Mode::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt32>
-        ::Append(*this, field_id, value);
-  }
-};
-
-class KmemCacheFreeFtraceEvent_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/2, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  KmemCacheFreeFtraceEvent_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit KmemCacheFreeFtraceEvent_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit KmemCacheFreeFtraceEvent_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_call_site() const { return at<1>().valid(); }
-  uint64_t call_site() const { return at<1>().as_uint64(); }
-  bool has_ptr() const { return at<2>().valid(); }
-  uint64_t ptr() const { return at<2>().as_uint64(); }
-};
-
-class KmemCacheFreeFtraceEvent : public ::protozero::Message {
- public:
-  using Decoder = KmemCacheFreeFtraceEvent_Decoder;
-  enum : int32_t {
-    kCallSiteFieldNumber = 1,
-    kPtrFieldNumber = 2,
-  };
-
-  using FieldMetadata_CallSite =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      KmemCacheFreeFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_CallSite kCallSite() { return {}; }
-  void set_call_site(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_CallSite::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Ptr =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      KmemCacheFreeFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Ptr kPtr() { return {}; }
-  void set_ptr(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Ptr::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-};
-
-class KmemCacheAllocNodeFtraceEvent_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/6, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  KmemCacheAllocNodeFtraceEvent_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit KmemCacheAllocNodeFtraceEvent_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit KmemCacheAllocNodeFtraceEvent_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_bytes_alloc() const { return at<1>().valid(); }
-  uint64_t bytes_alloc() const { return at<1>().as_uint64(); }
-  bool has_bytes_req() const { return at<2>().valid(); }
-  uint64_t bytes_req() const { return at<2>().as_uint64(); }
-  bool has_call_site() const { return at<3>().valid(); }
-  uint64_t call_site() const { return at<3>().as_uint64(); }
-  bool has_gfp_flags() const { return at<4>().valid(); }
-  uint32_t gfp_flags() const { return at<4>().as_uint32(); }
-  bool has_node() const { return at<5>().valid(); }
-  int32_t node() const { return at<5>().as_int32(); }
-  bool has_ptr() const { return at<6>().valid(); }
-  uint64_t ptr() const { return at<6>().as_uint64(); }
-};
-
-class KmemCacheAllocNodeFtraceEvent : public ::protozero::Message {
- public:
-  using Decoder = KmemCacheAllocNodeFtraceEvent_Decoder;
-  enum : int32_t {
-    kBytesAllocFieldNumber = 1,
-    kBytesReqFieldNumber = 2,
-    kCallSiteFieldNumber = 3,
-    kGfpFlagsFieldNumber = 4,
-    kNodeFieldNumber = 5,
-    kPtrFieldNumber = 6,
-  };
-
-  using FieldMetadata_BytesAlloc =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      KmemCacheAllocNodeFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_BytesAlloc kBytesAlloc() { return {}; }
-  void set_bytes_alloc(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_BytesAlloc::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_BytesReq =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      KmemCacheAllocNodeFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_BytesReq kBytesReq() { return {}; }
-  void set_bytes_req(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_BytesReq::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_CallSite =
-    ::protozero::proto_utils::FieldMetadata<
-      3,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      KmemCacheAllocNodeFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_CallSite kCallSite() { return {}; }
-  void set_call_site(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_CallSite::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_GfpFlags =
-    ::protozero::proto_utils::FieldMetadata<
-      4,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      KmemCacheAllocNodeFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_GfpFlags kGfpFlags() { return {}; }
-  void set_gfp_flags(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_GfpFlags::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Node =
-    ::protozero::proto_utils::FieldMetadata<
-      5,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt32,
-      int32_t,
-      KmemCacheAllocNodeFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Node kNode() { return {}; }
-  void set_node(int32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Node::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Ptr =
-    ::protozero::proto_utils::FieldMetadata<
-      6,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      KmemCacheAllocNodeFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Ptr kPtr() { return {}; }
-  void set_ptr(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Ptr::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-};
-
-class KmemCacheAllocFtraceEvent_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/5, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  KmemCacheAllocFtraceEvent_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit KmemCacheAllocFtraceEvent_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit KmemCacheAllocFtraceEvent_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_bytes_alloc() const { return at<1>().valid(); }
-  uint64_t bytes_alloc() const { return at<1>().as_uint64(); }
-  bool has_bytes_req() const { return at<2>().valid(); }
-  uint64_t bytes_req() const { return at<2>().as_uint64(); }
-  bool has_call_site() const { return at<3>().valid(); }
-  uint64_t call_site() const { return at<3>().as_uint64(); }
-  bool has_gfp_flags() const { return at<4>().valid(); }
-  uint32_t gfp_flags() const { return at<4>().as_uint32(); }
-  bool has_ptr() const { return at<5>().valid(); }
-  uint64_t ptr() const { return at<5>().as_uint64(); }
-};
-
-class KmemCacheAllocFtraceEvent : public ::protozero::Message {
- public:
-  using Decoder = KmemCacheAllocFtraceEvent_Decoder;
-  enum : int32_t {
-    kBytesAllocFieldNumber = 1,
-    kBytesReqFieldNumber = 2,
-    kCallSiteFieldNumber = 3,
-    kGfpFlagsFieldNumber = 4,
-    kPtrFieldNumber = 5,
-  };
-
-  using FieldMetadata_BytesAlloc =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      KmemCacheAllocFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_BytesAlloc kBytesAlloc() { return {}; }
-  void set_bytes_alloc(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_BytesAlloc::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_BytesReq =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      KmemCacheAllocFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_BytesReq kBytesReq() { return {}; }
-  void set_bytes_req(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_BytesReq::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_CallSite =
-    ::protozero::proto_utils::FieldMetadata<
-      3,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      KmemCacheAllocFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_CallSite kCallSite() { return {}; }
-  void set_call_site(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_CallSite::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_GfpFlags =
-    ::protozero::proto_utils::FieldMetadata<
-      4,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      KmemCacheAllocFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_GfpFlags kGfpFlags() { return {}; }
-  void set_gfp_flags(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_GfpFlags::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Ptr =
-    ::protozero::proto_utils::FieldMetadata<
-      5,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      KmemCacheAllocFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Ptr kPtr() { return {}; }
-  void set_ptr(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Ptr::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-};
-
-class KmallocNodeFtraceEvent_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/6, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  KmallocNodeFtraceEvent_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit KmallocNodeFtraceEvent_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit KmallocNodeFtraceEvent_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_bytes_alloc() const { return at<1>().valid(); }
-  uint64_t bytes_alloc() const { return at<1>().as_uint64(); }
-  bool has_bytes_req() const { return at<2>().valid(); }
-  uint64_t bytes_req() const { return at<2>().as_uint64(); }
-  bool has_call_site() const { return at<3>().valid(); }
-  uint64_t call_site() const { return at<3>().as_uint64(); }
-  bool has_gfp_flags() const { return at<4>().valid(); }
-  uint32_t gfp_flags() const { return at<4>().as_uint32(); }
-  bool has_node() const { return at<5>().valid(); }
-  int32_t node() const { return at<5>().as_int32(); }
-  bool has_ptr() const { return at<6>().valid(); }
-  uint64_t ptr() const { return at<6>().as_uint64(); }
-};
-
-class KmallocNodeFtraceEvent : public ::protozero::Message {
- public:
-  using Decoder = KmallocNodeFtraceEvent_Decoder;
-  enum : int32_t {
-    kBytesAllocFieldNumber = 1,
-    kBytesReqFieldNumber = 2,
-    kCallSiteFieldNumber = 3,
-    kGfpFlagsFieldNumber = 4,
-    kNodeFieldNumber = 5,
-    kPtrFieldNumber = 6,
-  };
-
-  using FieldMetadata_BytesAlloc =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      KmallocNodeFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_BytesAlloc kBytesAlloc() { return {}; }
-  void set_bytes_alloc(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_BytesAlloc::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_BytesReq =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      KmallocNodeFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_BytesReq kBytesReq() { return {}; }
-  void set_bytes_req(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_BytesReq::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_CallSite =
-    ::protozero::proto_utils::FieldMetadata<
-      3,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      KmallocNodeFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_CallSite kCallSite() { return {}; }
-  void set_call_site(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_CallSite::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_GfpFlags =
-    ::protozero::proto_utils::FieldMetadata<
-      4,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      KmallocNodeFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_GfpFlags kGfpFlags() { return {}; }
-  void set_gfp_flags(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_GfpFlags::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Node =
-    ::protozero::proto_utils::FieldMetadata<
-      5,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt32,
-      int32_t,
-      KmallocNodeFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Node kNode() { return {}; }
-  void set_node(int32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Node::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Ptr =
-    ::protozero::proto_utils::FieldMetadata<
-      6,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      KmallocNodeFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Ptr kPtr() { return {}; }
-  void set_ptr(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Ptr::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-};
-
-class KmallocFtraceEvent_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/5, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  KmallocFtraceEvent_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit KmallocFtraceEvent_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit KmallocFtraceEvent_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_bytes_alloc() const { return at<1>().valid(); }
-  uint64_t bytes_alloc() const { return at<1>().as_uint64(); }
-  bool has_bytes_req() const { return at<2>().valid(); }
-  uint64_t bytes_req() const { return at<2>().as_uint64(); }
-  bool has_call_site() const { return at<3>().valid(); }
-  uint64_t call_site() const { return at<3>().as_uint64(); }
-  bool has_gfp_flags() const { return at<4>().valid(); }
-  uint32_t gfp_flags() const { return at<4>().as_uint32(); }
-  bool has_ptr() const { return at<5>().valid(); }
-  uint64_t ptr() const { return at<5>().as_uint64(); }
-};
-
-class KmallocFtraceEvent : public ::protozero::Message {
- public:
-  using Decoder = KmallocFtraceEvent_Decoder;
-  enum : int32_t {
-    kBytesAllocFieldNumber = 1,
-    kBytesReqFieldNumber = 2,
-    kCallSiteFieldNumber = 3,
-    kGfpFlagsFieldNumber = 4,
-    kPtrFieldNumber = 5,
-  };
-
-  using FieldMetadata_BytesAlloc =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      KmallocFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_BytesAlloc kBytesAlloc() { return {}; }
-  void set_bytes_alloc(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_BytesAlloc::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_BytesReq =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      KmallocFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_BytesReq kBytesReq() { return {}; }
-  void set_bytes_req(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_BytesReq::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_CallSite =
-    ::protozero::proto_utils::FieldMetadata<
-      3,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      KmallocFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_CallSite kCallSite() { return {}; }
-  void set_call_site(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_CallSite::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_GfpFlags =
-    ::protozero::proto_utils::FieldMetadata<
-      4,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      KmallocFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_GfpFlags kGfpFlags() { return {}; }
-  void set_gfp_flags(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_GfpFlags::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Ptr =
-    ::protozero::proto_utils::FieldMetadata<
-      5,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      KmallocFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Ptr kPtr() { return {}; }
-  void set_ptr(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Ptr::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-};
-
-class KfreeFtraceEvent_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/2, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  KfreeFtraceEvent_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit KfreeFtraceEvent_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit KfreeFtraceEvent_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_call_site() const { return at<1>().valid(); }
-  uint64_t call_site() const { return at<1>().as_uint64(); }
-  bool has_ptr() const { return at<2>().valid(); }
-  uint64_t ptr() const { return at<2>().as_uint64(); }
-};
-
-class KfreeFtraceEvent : public ::protozero::Message {
- public:
-  using Decoder = KfreeFtraceEvent_Decoder;
-  enum : int32_t {
-    kCallSiteFieldNumber = 1,
-    kPtrFieldNumber = 2,
-  };
-
-  using FieldMetadata_CallSite =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      KfreeFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_CallSite kCallSite() { return {}; }
-  void set_call_site(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_CallSite::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Ptr =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      KfreeFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Ptr kPtr() { return {}; }
-  void set_ptr(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Ptr::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-};
-
-class IonSecureCmaShrinkPoolStartFtraceEvent_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/2, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  IonSecureCmaShrinkPoolStartFtraceEvent_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit IonSecureCmaShrinkPoolStartFtraceEvent_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit IonSecureCmaShrinkPoolStartFtraceEvent_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_drained_size() const { return at<1>().valid(); }
-  uint64_t drained_size() const { return at<1>().as_uint64(); }
-  bool has_skipped_size() const { return at<2>().valid(); }
-  uint64_t skipped_size() const { return at<2>().as_uint64(); }
-};
-
-class IonSecureCmaShrinkPoolStartFtraceEvent : public ::protozero::Message {
- public:
-  using Decoder = IonSecureCmaShrinkPoolStartFtraceEvent_Decoder;
-  enum : int32_t {
-    kDrainedSizeFieldNumber = 1,
-    kSkippedSizeFieldNumber = 2,
-  };
-
-  using FieldMetadata_DrainedSize =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      IonSecureCmaShrinkPoolStartFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_DrainedSize kDrainedSize() { return {}; }
-  void set_drained_size(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_DrainedSize::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_SkippedSize =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      IonSecureCmaShrinkPoolStartFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_SkippedSize kSkippedSize() { return {}; }
-  void set_skipped_size(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_SkippedSize::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-};
-
-class IonSecureCmaShrinkPoolEndFtraceEvent_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/2, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  IonSecureCmaShrinkPoolEndFtraceEvent_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit IonSecureCmaShrinkPoolEndFtraceEvent_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit IonSecureCmaShrinkPoolEndFtraceEvent_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_drained_size() const { return at<1>().valid(); }
-  uint64_t drained_size() const { return at<1>().as_uint64(); }
-  bool has_skipped_size() const { return at<2>().valid(); }
-  uint64_t skipped_size() const { return at<2>().as_uint64(); }
-};
-
-class IonSecureCmaShrinkPoolEndFtraceEvent : public ::protozero::Message {
- public:
-  using Decoder = IonSecureCmaShrinkPoolEndFtraceEvent_Decoder;
-  enum : int32_t {
-    kDrainedSizeFieldNumber = 1,
-    kSkippedSizeFieldNumber = 2,
-  };
-
-  using FieldMetadata_DrainedSize =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      IonSecureCmaShrinkPoolEndFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_DrainedSize kDrainedSize() { return {}; }
-  void set_drained_size(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_DrainedSize::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_SkippedSize =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      IonSecureCmaShrinkPoolEndFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_SkippedSize kSkippedSize() { return {}; }
-  void set_skipped_size(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_SkippedSize::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-};
-
-class IonSecureCmaAllocateStartFtraceEvent_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/4, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  IonSecureCmaAllocateStartFtraceEvent_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit IonSecureCmaAllocateStartFtraceEvent_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit IonSecureCmaAllocateStartFtraceEvent_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_align() const { return at<1>().valid(); }
-  uint64_t align() const { return at<1>().as_uint64(); }
-  bool has_flags() const { return at<2>().valid(); }
-  uint64_t flags() const { return at<2>().as_uint64(); }
-  bool has_heap_name() const { return at<3>().valid(); }
-  ::protozero::ConstChars heap_name() const { return at<3>().as_string(); }
-  bool has_len() const { return at<4>().valid(); }
-  uint64_t len() const { return at<4>().as_uint64(); }
-};
-
-class IonSecureCmaAllocateStartFtraceEvent : public ::protozero::Message {
- public:
-  using Decoder = IonSecureCmaAllocateStartFtraceEvent_Decoder;
-  enum : int32_t {
-    kAlignFieldNumber = 1,
-    kFlagsFieldNumber = 2,
-    kHeapNameFieldNumber = 3,
-    kLenFieldNumber = 4,
-  };
-
-  using FieldMetadata_Align =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      IonSecureCmaAllocateStartFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Align kAlign() { return {}; }
-  void set_align(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Align::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Flags =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      IonSecureCmaAllocateStartFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Flags kFlags() { return {}; }
-  void set_flags(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Flags::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_HeapName =
-    ::protozero::proto_utils::FieldMetadata<
-      3,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kString,
-      std::string,
-      IonSecureCmaAllocateStartFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_HeapName kHeapName() { return {}; }
-  void set_heap_name(const char* data, size_t size) {
-    AppendBytes(FieldMetadata_HeapName::kFieldId, data, size);
-  }
-  void set_heap_name(std::string value) {
-    static constexpr uint32_t field_id = FieldMetadata_HeapName::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kString>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Len =
-    ::protozero::proto_utils::FieldMetadata<
-      4,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      IonSecureCmaAllocateStartFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Len kLen() { return {}; }
-  void set_len(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Len::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-};
-
-class IonSecureCmaAllocateEndFtraceEvent_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/4, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  IonSecureCmaAllocateEndFtraceEvent_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit IonSecureCmaAllocateEndFtraceEvent_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit IonSecureCmaAllocateEndFtraceEvent_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_align() const { return at<1>().valid(); }
-  uint64_t align() const { return at<1>().as_uint64(); }
-  bool has_flags() const { return at<2>().valid(); }
-  uint64_t flags() const { return at<2>().as_uint64(); }
-  bool has_heap_name() const { return at<3>().valid(); }
-  ::protozero::ConstChars heap_name() const { return at<3>().as_string(); }
-  bool has_len() const { return at<4>().valid(); }
-  uint64_t len() const { return at<4>().as_uint64(); }
-};
-
-class IonSecureCmaAllocateEndFtraceEvent : public ::protozero::Message {
- public:
-  using Decoder = IonSecureCmaAllocateEndFtraceEvent_Decoder;
-  enum : int32_t {
-    kAlignFieldNumber = 1,
-    kFlagsFieldNumber = 2,
-    kHeapNameFieldNumber = 3,
-    kLenFieldNumber = 4,
-  };
-
-  using FieldMetadata_Align =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      IonSecureCmaAllocateEndFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Align kAlign() { return {}; }
-  void set_align(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Align::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Flags =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      IonSecureCmaAllocateEndFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Flags kFlags() { return {}; }
-  void set_flags(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Flags::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_HeapName =
-    ::protozero::proto_utils::FieldMetadata<
-      3,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kString,
-      std::string,
-      IonSecureCmaAllocateEndFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_HeapName kHeapName() { return {}; }
-  void set_heap_name(const char* data, size_t size) {
-    AppendBytes(FieldMetadata_HeapName::kFieldId, data, size);
-  }
-  void set_heap_name(std::string value) {
-    static constexpr uint32_t field_id = FieldMetadata_HeapName::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kString>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Len =
-    ::protozero::proto_utils::FieldMetadata<
-      4,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      IonSecureCmaAllocateEndFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Len kLen() { return {}; }
-  void set_len(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Len::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-};
-
-class IonSecureCmaAddToPoolStartFtraceEvent_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/3, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  IonSecureCmaAddToPoolStartFtraceEvent_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit IonSecureCmaAddToPoolStartFtraceEvent_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit IonSecureCmaAddToPoolStartFtraceEvent_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_is_prefetch() const { return at<1>().valid(); }
-  uint32_t is_prefetch() const { return at<1>().as_uint32(); }
-  bool has_len() const { return at<2>().valid(); }
-  uint64_t len() const { return at<2>().as_uint64(); }
-  bool has_pool_total() const { return at<3>().valid(); }
-  int32_t pool_total() const { return at<3>().as_int32(); }
-};
-
-class IonSecureCmaAddToPoolStartFtraceEvent : public ::protozero::Message {
- public:
-  using Decoder = IonSecureCmaAddToPoolStartFtraceEvent_Decoder;
-  enum : int32_t {
-    kIsPrefetchFieldNumber = 1,
-    kLenFieldNumber = 2,
-    kPoolTotalFieldNumber = 3,
-  };
-
-  using FieldMetadata_IsPrefetch =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      IonSecureCmaAddToPoolStartFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_IsPrefetch kIsPrefetch() { return {}; }
-  void set_is_prefetch(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_IsPrefetch::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Len =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      IonSecureCmaAddToPoolStartFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Len kLen() { return {}; }
-  void set_len(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Len::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_PoolTotal =
-    ::protozero::proto_utils::FieldMetadata<
-      3,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt32,
-      int32_t,
-      IonSecureCmaAddToPoolStartFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_PoolTotal kPoolTotal() { return {}; }
-  void set_pool_total(int32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_PoolTotal::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt32>
-        ::Append(*this, field_id, value);
-  }
-};
-
-class IonSecureCmaAddToPoolEndFtraceEvent_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/3, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  IonSecureCmaAddToPoolEndFtraceEvent_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit IonSecureCmaAddToPoolEndFtraceEvent_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit IonSecureCmaAddToPoolEndFtraceEvent_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_is_prefetch() const { return at<1>().valid(); }
-  uint32_t is_prefetch() const { return at<1>().as_uint32(); }
-  bool has_len() const { return at<2>().valid(); }
-  uint64_t len() const { return at<2>().as_uint64(); }
-  bool has_pool_total() const { return at<3>().valid(); }
-  int32_t pool_total() const { return at<3>().as_int32(); }
-};
-
-class IonSecureCmaAddToPoolEndFtraceEvent : public ::protozero::Message {
- public:
-  using Decoder = IonSecureCmaAddToPoolEndFtraceEvent_Decoder;
-  enum : int32_t {
-    kIsPrefetchFieldNumber = 1,
-    kLenFieldNumber = 2,
-    kPoolTotalFieldNumber = 3,
-  };
-
-  using FieldMetadata_IsPrefetch =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      IonSecureCmaAddToPoolEndFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_IsPrefetch kIsPrefetch() { return {}; }
-  void set_is_prefetch(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_IsPrefetch::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Len =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      IonSecureCmaAddToPoolEndFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Len kLen() { return {}; }
-  void set_len(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Len::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_PoolTotal =
-    ::protozero::proto_utils::FieldMetadata<
-      3,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt32,
-      int32_t,
-      IonSecureCmaAddToPoolEndFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_PoolTotal kPoolTotal() { return {}; }
-  void set_pool_total(int32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_PoolTotal::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt32>
-        ::Append(*this, field_id, value);
-  }
-};
-
-class IonPrefetchingFtraceEvent_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/1, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  IonPrefetchingFtraceEvent_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit IonPrefetchingFtraceEvent_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit IonPrefetchingFtraceEvent_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_len() const { return at<1>().valid(); }
-  uint64_t len() const { return at<1>().as_uint64(); }
-};
-
-class IonPrefetchingFtraceEvent : public ::protozero::Message {
- public:
-  using Decoder = IonPrefetchingFtraceEvent_Decoder;
-  enum : int32_t {
-    kLenFieldNumber = 1,
-  };
-
-  using FieldMetadata_Len =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      IonPrefetchingFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Len kLen() { return {}; }
-  void set_len(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Len::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-};
-
-class IonCpSecureBufferStartFtraceEvent_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/4, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  IonCpSecureBufferStartFtraceEvent_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit IonCpSecureBufferStartFtraceEvent_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit IonCpSecureBufferStartFtraceEvent_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_align() const { return at<1>().valid(); }
-  uint64_t align() const { return at<1>().as_uint64(); }
-  bool has_flags() const { return at<2>().valid(); }
-  uint64_t flags() const { return at<2>().as_uint64(); }
-  bool has_heap_name() const { return at<3>().valid(); }
-  ::protozero::ConstChars heap_name() const { return at<3>().as_string(); }
-  bool has_len() const { return at<4>().valid(); }
-  uint64_t len() const { return at<4>().as_uint64(); }
-};
-
-class IonCpSecureBufferStartFtraceEvent : public ::protozero::Message {
- public:
-  using Decoder = IonCpSecureBufferStartFtraceEvent_Decoder;
-  enum : int32_t {
-    kAlignFieldNumber = 1,
-    kFlagsFieldNumber = 2,
-    kHeapNameFieldNumber = 3,
-    kLenFieldNumber = 4,
-  };
-
-  using FieldMetadata_Align =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      IonCpSecureBufferStartFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Align kAlign() { return {}; }
-  void set_align(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Align::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Flags =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      IonCpSecureBufferStartFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Flags kFlags() { return {}; }
-  void set_flags(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Flags::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_HeapName =
-    ::protozero::proto_utils::FieldMetadata<
-      3,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kString,
-      std::string,
-      IonCpSecureBufferStartFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_HeapName kHeapName() { return {}; }
-  void set_heap_name(const char* data, size_t size) {
-    AppendBytes(FieldMetadata_HeapName::kFieldId, data, size);
-  }
-  void set_heap_name(std::string value) {
-    static constexpr uint32_t field_id = FieldMetadata_HeapName::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kString>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Len =
-    ::protozero::proto_utils::FieldMetadata<
-      4,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      IonCpSecureBufferStartFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Len kLen() { return {}; }
-  void set_len(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Len::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-};
-
-class IonCpSecureBufferEndFtraceEvent_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/4, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  IonCpSecureBufferEndFtraceEvent_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit IonCpSecureBufferEndFtraceEvent_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit IonCpSecureBufferEndFtraceEvent_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_align() const { return at<1>().valid(); }
-  uint64_t align() const { return at<1>().as_uint64(); }
-  bool has_flags() const { return at<2>().valid(); }
-  uint64_t flags() const { return at<2>().as_uint64(); }
-  bool has_heap_name() const { return at<3>().valid(); }
-  ::protozero::ConstChars heap_name() const { return at<3>().as_string(); }
-  bool has_len() const { return at<4>().valid(); }
-  uint64_t len() const { return at<4>().as_uint64(); }
-};
-
-class IonCpSecureBufferEndFtraceEvent : public ::protozero::Message {
- public:
-  using Decoder = IonCpSecureBufferEndFtraceEvent_Decoder;
-  enum : int32_t {
-    kAlignFieldNumber = 1,
-    kFlagsFieldNumber = 2,
-    kHeapNameFieldNumber = 3,
-    kLenFieldNumber = 4,
-  };
-
-  using FieldMetadata_Align =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      IonCpSecureBufferEndFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Align kAlign() { return {}; }
-  void set_align(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Align::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Flags =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      IonCpSecureBufferEndFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Flags kFlags() { return {}; }
-  void set_flags(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Flags::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_HeapName =
-    ::protozero::proto_utils::FieldMetadata<
-      3,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kString,
-      std::string,
-      IonCpSecureBufferEndFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_HeapName kHeapName() { return {}; }
-  void set_heap_name(const char* data, size_t size) {
-    AppendBytes(FieldMetadata_HeapName::kFieldId, data, size);
-  }
-  void set_heap_name(std::string value) {
-    static constexpr uint32_t field_id = FieldMetadata_HeapName::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kString>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Len =
-    ::protozero::proto_utils::FieldMetadata<
-      4,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      IonCpSecureBufferEndFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Len kLen() { return {}; }
-  void set_len(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Len::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-};
-
-class IonCpAllocRetryFtraceEvent_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/1, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  IonCpAllocRetryFtraceEvent_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit IonCpAllocRetryFtraceEvent_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit IonCpAllocRetryFtraceEvent_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_tries() const { return at<1>().valid(); }
-  int32_t tries() const { return at<1>().as_int32(); }
-};
-
-class IonCpAllocRetryFtraceEvent : public ::protozero::Message {
- public:
-  using Decoder = IonCpAllocRetryFtraceEvent_Decoder;
-  enum : int32_t {
-    kTriesFieldNumber = 1,
-  };
-
-  using FieldMetadata_Tries =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt32,
-      int32_t,
-      IonCpAllocRetryFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Tries kTries() { return {}; }
-  void set_tries(int32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Tries::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt32>
-        ::Append(*this, field_id, value);
-  }
-};
-
-class IonAllocBufferStartFtraceEvent_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/5, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  IonAllocBufferStartFtraceEvent_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit IonAllocBufferStartFtraceEvent_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit IonAllocBufferStartFtraceEvent_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_client_name() const { return at<1>().valid(); }
-  ::protozero::ConstChars client_name() const { return at<1>().as_string(); }
-  bool has_flags() const { return at<2>().valid(); }
-  uint32_t flags() const { return at<2>().as_uint32(); }
-  bool has_heap_name() const { return at<3>().valid(); }
-  ::protozero::ConstChars heap_name() const { return at<3>().as_string(); }
-  bool has_len() const { return at<4>().valid(); }
-  uint64_t len() const { return at<4>().as_uint64(); }
-  bool has_mask() const { return at<5>().valid(); }
-  uint32_t mask() const { return at<5>().as_uint32(); }
-};
-
-class IonAllocBufferStartFtraceEvent : public ::protozero::Message {
- public:
-  using Decoder = IonAllocBufferStartFtraceEvent_Decoder;
-  enum : int32_t {
-    kClientNameFieldNumber = 1,
-    kFlagsFieldNumber = 2,
-    kHeapNameFieldNumber = 3,
-    kLenFieldNumber = 4,
-    kMaskFieldNumber = 5,
-  };
-
-  using FieldMetadata_ClientName =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kString,
-      std::string,
-      IonAllocBufferStartFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_ClientName kClientName() { return {}; }
-  void set_client_name(const char* data, size_t size) {
-    AppendBytes(FieldMetadata_ClientName::kFieldId, data, size);
-  }
-  void set_client_name(std::string value) {
-    static constexpr uint32_t field_id = FieldMetadata_ClientName::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kString>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Flags =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      IonAllocBufferStartFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Flags kFlags() { return {}; }
-  void set_flags(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Flags::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_HeapName =
-    ::protozero::proto_utils::FieldMetadata<
-      3,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kString,
-      std::string,
-      IonAllocBufferStartFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_HeapName kHeapName() { return {}; }
-  void set_heap_name(const char* data, size_t size) {
-    AppendBytes(FieldMetadata_HeapName::kFieldId, data, size);
-  }
-  void set_heap_name(std::string value) {
-    static constexpr uint32_t field_id = FieldMetadata_HeapName::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kString>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Len =
-    ::protozero::proto_utils::FieldMetadata<
-      4,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      IonAllocBufferStartFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Len kLen() { return {}; }
-  void set_len(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Len::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Mask =
-    ::protozero::proto_utils::FieldMetadata<
-      5,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      IonAllocBufferStartFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Mask kMask() { return {}; }
-  void set_mask(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Mask::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-};
-
-class IonAllocBufferFallbackFtraceEvent_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/6, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  IonAllocBufferFallbackFtraceEvent_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit IonAllocBufferFallbackFtraceEvent_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit IonAllocBufferFallbackFtraceEvent_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_client_name() const { return at<1>().valid(); }
-  ::protozero::ConstChars client_name() const { return at<1>().as_string(); }
-  bool has_error() const { return at<2>().valid(); }
-  int64_t error() const { return at<2>().as_int64(); }
-  bool has_flags() const { return at<3>().valid(); }
-  uint32_t flags() const { return at<3>().as_uint32(); }
-  bool has_heap_name() const { return at<4>().valid(); }
-  ::protozero::ConstChars heap_name() const { return at<4>().as_string(); }
-  bool has_len() const { return at<5>().valid(); }
-  uint64_t len() const { return at<5>().as_uint64(); }
-  bool has_mask() const { return at<6>().valid(); }
-  uint32_t mask() const { return at<6>().as_uint32(); }
-};
-
-class IonAllocBufferFallbackFtraceEvent : public ::protozero::Message {
- public:
-  using Decoder = IonAllocBufferFallbackFtraceEvent_Decoder;
-  enum : int32_t {
-    kClientNameFieldNumber = 1,
-    kErrorFieldNumber = 2,
-    kFlagsFieldNumber = 3,
-    kHeapNameFieldNumber = 4,
-    kLenFieldNumber = 5,
-    kMaskFieldNumber = 6,
-  };
-
-  using FieldMetadata_ClientName =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kString,
-      std::string,
-      IonAllocBufferFallbackFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_ClientName kClientName() { return {}; }
-  void set_client_name(const char* data, size_t size) {
-    AppendBytes(FieldMetadata_ClientName::kFieldId, data, size);
-  }
-  void set_client_name(std::string value) {
-    static constexpr uint32_t field_id = FieldMetadata_ClientName::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kString>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Error =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt64,
-      int64_t,
-      IonAllocBufferFallbackFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Error kError() { return {}; }
-  void set_error(int64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Error::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Flags =
-    ::protozero::proto_utils::FieldMetadata<
-      3,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      IonAllocBufferFallbackFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Flags kFlags() { return {}; }
-  void set_flags(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Flags::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_HeapName =
-    ::protozero::proto_utils::FieldMetadata<
-      4,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kString,
-      std::string,
-      IonAllocBufferFallbackFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_HeapName kHeapName() { return {}; }
-  void set_heap_name(const char* data, size_t size) {
-    AppendBytes(FieldMetadata_HeapName::kFieldId, data, size);
-  }
-  void set_heap_name(std::string value) {
-    static constexpr uint32_t field_id = FieldMetadata_HeapName::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kString>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Len =
-    ::protozero::proto_utils::FieldMetadata<
-      5,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      IonAllocBufferFallbackFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Len kLen() { return {}; }
-  void set_len(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Len::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Mask =
-    ::protozero::proto_utils::FieldMetadata<
-      6,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      IonAllocBufferFallbackFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Mask kMask() { return {}; }
-  void set_mask(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Mask::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-};
-
-class IonAllocBufferFailFtraceEvent_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/6, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  IonAllocBufferFailFtraceEvent_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit IonAllocBufferFailFtraceEvent_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit IonAllocBufferFailFtraceEvent_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_client_name() const { return at<1>().valid(); }
-  ::protozero::ConstChars client_name() const { return at<1>().as_string(); }
-  bool has_error() const { return at<2>().valid(); }
-  int64_t error() const { return at<2>().as_int64(); }
-  bool has_flags() const { return at<3>().valid(); }
-  uint32_t flags() const { return at<3>().as_uint32(); }
-  bool has_heap_name() const { return at<4>().valid(); }
-  ::protozero::ConstChars heap_name() const { return at<4>().as_string(); }
-  bool has_len() const { return at<5>().valid(); }
-  uint64_t len() const { return at<5>().as_uint64(); }
-  bool has_mask() const { return at<6>().valid(); }
-  uint32_t mask() const { return at<6>().as_uint32(); }
-};
-
-class IonAllocBufferFailFtraceEvent : public ::protozero::Message {
- public:
-  using Decoder = IonAllocBufferFailFtraceEvent_Decoder;
-  enum : int32_t {
-    kClientNameFieldNumber = 1,
-    kErrorFieldNumber = 2,
-    kFlagsFieldNumber = 3,
-    kHeapNameFieldNumber = 4,
-    kLenFieldNumber = 5,
-    kMaskFieldNumber = 6,
-  };
-
-  using FieldMetadata_ClientName =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kString,
-      std::string,
-      IonAllocBufferFailFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_ClientName kClientName() { return {}; }
-  void set_client_name(const char* data, size_t size) {
-    AppendBytes(FieldMetadata_ClientName::kFieldId, data, size);
-  }
-  void set_client_name(std::string value) {
-    static constexpr uint32_t field_id = FieldMetadata_ClientName::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kString>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Error =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt64,
-      int64_t,
-      IonAllocBufferFailFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Error kError() { return {}; }
-  void set_error(int64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Error::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Flags =
-    ::protozero::proto_utils::FieldMetadata<
-      3,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      IonAllocBufferFailFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Flags kFlags() { return {}; }
-  void set_flags(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Flags::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_HeapName =
-    ::protozero::proto_utils::FieldMetadata<
-      4,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kString,
-      std::string,
-      IonAllocBufferFailFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_HeapName kHeapName() { return {}; }
-  void set_heap_name(const char* data, size_t size) {
-    AppendBytes(FieldMetadata_HeapName::kFieldId, data, size);
-  }
-  void set_heap_name(std::string value) {
-    static constexpr uint32_t field_id = FieldMetadata_HeapName::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kString>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Len =
-    ::protozero::proto_utils::FieldMetadata<
-      5,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      IonAllocBufferFailFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Len kLen() { return {}; }
-  void set_len(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Len::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Mask =
-    ::protozero::proto_utils::FieldMetadata<
-      6,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      IonAllocBufferFailFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Mask kMask() { return {}; }
-  void set_mask(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Mask::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-};
-
-class IonAllocBufferEndFtraceEvent_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/5, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  IonAllocBufferEndFtraceEvent_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit IonAllocBufferEndFtraceEvent_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit IonAllocBufferEndFtraceEvent_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_client_name() const { return at<1>().valid(); }
-  ::protozero::ConstChars client_name() const { return at<1>().as_string(); }
-  bool has_flags() const { return at<2>().valid(); }
-  uint32_t flags() const { return at<2>().as_uint32(); }
-  bool has_heap_name() const { return at<3>().valid(); }
-  ::protozero::ConstChars heap_name() const { return at<3>().as_string(); }
-  bool has_len() const { return at<4>().valid(); }
-  uint64_t len() const { return at<4>().as_uint64(); }
-  bool has_mask() const { return at<5>().valid(); }
-  uint32_t mask() const { return at<5>().as_uint32(); }
-};
-
-class IonAllocBufferEndFtraceEvent : public ::protozero::Message {
- public:
-  using Decoder = IonAllocBufferEndFtraceEvent_Decoder;
-  enum : int32_t {
-    kClientNameFieldNumber = 1,
-    kFlagsFieldNumber = 2,
-    kHeapNameFieldNumber = 3,
-    kLenFieldNumber = 4,
-    kMaskFieldNumber = 5,
-  };
-
-  using FieldMetadata_ClientName =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kString,
-      std::string,
-      IonAllocBufferEndFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_ClientName kClientName() { return {}; }
-  void set_client_name(const char* data, size_t size) {
-    AppendBytes(FieldMetadata_ClientName::kFieldId, data, size);
-  }
-  void set_client_name(std::string value) {
-    static constexpr uint32_t field_id = FieldMetadata_ClientName::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kString>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Flags =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      IonAllocBufferEndFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Flags kFlags() { return {}; }
-  void set_flags(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Flags::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_HeapName =
-    ::protozero::proto_utils::FieldMetadata<
-      3,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kString,
-      std::string,
-      IonAllocBufferEndFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_HeapName kHeapName() { return {}; }
-  void set_heap_name(const char* data, size_t size) {
-    AppendBytes(FieldMetadata_HeapName::kFieldId, data, size);
-  }
-  void set_heap_name(std::string value) {
-    static constexpr uint32_t field_id = FieldMetadata_HeapName::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kString>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Len =
-    ::protozero::proto_utils::FieldMetadata<
-      4,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      IonAllocBufferEndFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Len kLen() { return {}; }
-  void set_len(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Len::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Mask =
-    ::protozero::proto_utils::FieldMetadata<
-      5,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      IonAllocBufferEndFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Mask kMask() { return {}; }
-  void set_mask(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Mask::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-};
-
-class IommuSecPtblMapRangeStartFtraceEvent_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/5, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  IommuSecPtblMapRangeStartFtraceEvent_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit IommuSecPtblMapRangeStartFtraceEvent_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit IommuSecPtblMapRangeStartFtraceEvent_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_len() const { return at<1>().valid(); }
-  uint64_t len() const { return at<1>().as_uint64(); }
-  bool has_num() const { return at<2>().valid(); }
-  int32_t num() const { return at<2>().as_int32(); }
-  bool has_pa() const { return at<3>().valid(); }
-  uint32_t pa() const { return at<3>().as_uint32(); }
-  bool has_sec_id() const { return at<4>().valid(); }
-  int32_t sec_id() const { return at<4>().as_int32(); }
-  bool has_va() const { return at<5>().valid(); }
-  uint64_t va() const { return at<5>().as_uint64(); }
-};
-
-class IommuSecPtblMapRangeStartFtraceEvent : public ::protozero::Message {
- public:
-  using Decoder = IommuSecPtblMapRangeStartFtraceEvent_Decoder;
-  enum : int32_t {
-    kLenFieldNumber = 1,
-    kNumFieldNumber = 2,
-    kPaFieldNumber = 3,
-    kSecIdFieldNumber = 4,
-    kVaFieldNumber = 5,
-  };
-
-  using FieldMetadata_Len =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      IommuSecPtblMapRangeStartFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Len kLen() { return {}; }
-  void set_len(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Len::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Num =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt32,
-      int32_t,
-      IommuSecPtblMapRangeStartFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Num kNum() { return {}; }
-  void set_num(int32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Num::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Pa =
-    ::protozero::proto_utils::FieldMetadata<
-      3,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      IommuSecPtblMapRangeStartFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Pa kPa() { return {}; }
-  void set_pa(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Pa::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_SecId =
-    ::protozero::proto_utils::FieldMetadata<
-      4,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt32,
-      int32_t,
-      IommuSecPtblMapRangeStartFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_SecId kSecId() { return {}; }
-  void set_sec_id(int32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_SecId::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Va =
-    ::protozero::proto_utils::FieldMetadata<
-      5,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      IommuSecPtblMapRangeStartFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Va kVa() { return {}; }
-  void set_va(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Va::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-};
-
-class IommuSecPtblMapRangeEndFtraceEvent_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/5, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  IommuSecPtblMapRangeEndFtraceEvent_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit IommuSecPtblMapRangeEndFtraceEvent_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit IommuSecPtblMapRangeEndFtraceEvent_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_len() const { return at<1>().valid(); }
-  uint64_t len() const { return at<1>().as_uint64(); }
-  bool has_num() const { return at<2>().valid(); }
-  int32_t num() const { return at<2>().as_int32(); }
-  bool has_pa() const { return at<3>().valid(); }
-  uint32_t pa() const { return at<3>().as_uint32(); }
-  bool has_sec_id() const { return at<4>().valid(); }
-  int32_t sec_id() const { return at<4>().as_int32(); }
-  bool has_va() const { return at<5>().valid(); }
-  uint64_t va() const { return at<5>().as_uint64(); }
-};
-
-class IommuSecPtblMapRangeEndFtraceEvent : public ::protozero::Message {
- public:
-  using Decoder = IommuSecPtblMapRangeEndFtraceEvent_Decoder;
-  enum : int32_t {
-    kLenFieldNumber = 1,
-    kNumFieldNumber = 2,
-    kPaFieldNumber = 3,
-    kSecIdFieldNumber = 4,
-    kVaFieldNumber = 5,
-  };
-
-  using FieldMetadata_Len =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      IommuSecPtblMapRangeEndFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Len kLen() { return {}; }
-  void set_len(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Len::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Num =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt32,
-      int32_t,
-      IommuSecPtblMapRangeEndFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Num kNum() { return {}; }
-  void set_num(int32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Num::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Pa =
-    ::protozero::proto_utils::FieldMetadata<
-      3,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      IommuSecPtblMapRangeEndFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Pa kPa() { return {}; }
-  void set_pa(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Pa::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_SecId =
-    ::protozero::proto_utils::FieldMetadata<
-      4,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt32,
-      int32_t,
-      IommuSecPtblMapRangeEndFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_SecId kSecId() { return {}; }
-  void set_sec_id(int32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_SecId::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Va =
-    ::protozero::proto_utils::FieldMetadata<
-      5,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      IommuSecPtblMapRangeEndFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Va kVa() { return {}; }
-  void set_va(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Va::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-};
-
-class IommuMapRangeFtraceEvent_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/4, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  IommuMapRangeFtraceEvent_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit IommuMapRangeFtraceEvent_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit IommuMapRangeFtraceEvent_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_chunk_size() const { return at<1>().valid(); }
-  uint64_t chunk_size() const { return at<1>().as_uint64(); }
-  bool has_len() const { return at<2>().valid(); }
-  uint64_t len() const { return at<2>().as_uint64(); }
-  bool has_pa() const { return at<3>().valid(); }
-  uint64_t pa() const { return at<3>().as_uint64(); }
-  bool has_va() const { return at<4>().valid(); }
-  uint64_t va() const { return at<4>().as_uint64(); }
-};
-
-class IommuMapRangeFtraceEvent : public ::protozero::Message {
- public:
-  using Decoder = IommuMapRangeFtraceEvent_Decoder;
-  enum : int32_t {
-    kChunkSizeFieldNumber = 1,
-    kLenFieldNumber = 2,
-    kPaFieldNumber = 3,
-    kVaFieldNumber = 4,
-  };
-
-  using FieldMetadata_ChunkSize =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      IommuMapRangeFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_ChunkSize kChunkSize() { return {}; }
-  void set_chunk_size(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_ChunkSize::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Len =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      IommuMapRangeFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Len kLen() { return {}; }
-  void set_len(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Len::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Pa =
-    ::protozero::proto_utils::FieldMetadata<
-      3,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      IommuMapRangeFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Pa kPa() { return {}; }
-  void set_pa(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Pa::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Va =
-    ::protozero::proto_utils::FieldMetadata<
-      4,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      IommuMapRangeFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Va kVa() { return {}; }
-  void set_va(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Va::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-};
-
-class DmaAllocContiguousRetryFtraceEvent_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/1, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  DmaAllocContiguousRetryFtraceEvent_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit DmaAllocContiguousRetryFtraceEvent_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit DmaAllocContiguousRetryFtraceEvent_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_tries() const { return at<1>().valid(); }
-  int32_t tries() const { return at<1>().as_int32(); }
-};
-
-class DmaAllocContiguousRetryFtraceEvent : public ::protozero::Message {
- public:
-  using Decoder = DmaAllocContiguousRetryFtraceEvent_Decoder;
-  enum : int32_t {
-    kTriesFieldNumber = 1,
-  };
-
-  using FieldMetadata_Tries =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt32,
-      int32_t,
-      DmaAllocContiguousRetryFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Tries kTries() { return {}; }
-  void set_tries(int32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Tries::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt32>
-        ::Append(*this, field_id, value);
-  }
-};
-
-class AllocPagesSysStartFtraceEvent_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/2, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  AllocPagesSysStartFtraceEvent_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit AllocPagesSysStartFtraceEvent_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit AllocPagesSysStartFtraceEvent_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_gfp_flags() const { return at<1>().valid(); }
-  uint32_t gfp_flags() const { return at<1>().as_uint32(); }
-  bool has_order() const { return at<2>().valid(); }
-  uint32_t order() const { return at<2>().as_uint32(); }
-};
-
-class AllocPagesSysStartFtraceEvent : public ::protozero::Message {
- public:
-  using Decoder = AllocPagesSysStartFtraceEvent_Decoder;
-  enum : int32_t {
-    kGfpFlagsFieldNumber = 1,
-    kOrderFieldNumber = 2,
-  };
-
-  using FieldMetadata_GfpFlags =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      AllocPagesSysStartFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_GfpFlags kGfpFlags() { return {}; }
-  void set_gfp_flags(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_GfpFlags::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Order =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      AllocPagesSysStartFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Order kOrder() { return {}; }
-  void set_order(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Order::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-};
-
-class AllocPagesSysFailFtraceEvent_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/2, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  AllocPagesSysFailFtraceEvent_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit AllocPagesSysFailFtraceEvent_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit AllocPagesSysFailFtraceEvent_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_gfp_flags() const { return at<1>().valid(); }
-  uint32_t gfp_flags() const { return at<1>().as_uint32(); }
-  bool has_order() const { return at<2>().valid(); }
-  uint32_t order() const { return at<2>().as_uint32(); }
-};
-
-class AllocPagesSysFailFtraceEvent : public ::protozero::Message {
- public:
-  using Decoder = AllocPagesSysFailFtraceEvent_Decoder;
-  enum : int32_t {
-    kGfpFlagsFieldNumber = 1,
-    kOrderFieldNumber = 2,
-  };
-
-  using FieldMetadata_GfpFlags =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      AllocPagesSysFailFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_GfpFlags kGfpFlags() { return {}; }
-  void set_gfp_flags(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_GfpFlags::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Order =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      AllocPagesSysFailFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Order kOrder() { return {}; }
-  void set_order(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Order::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-};
-
-class AllocPagesSysEndFtraceEvent_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/2, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  AllocPagesSysEndFtraceEvent_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit AllocPagesSysEndFtraceEvent_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit AllocPagesSysEndFtraceEvent_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_gfp_flags() const { return at<1>().valid(); }
-  uint32_t gfp_flags() const { return at<1>().as_uint32(); }
-  bool has_order() const { return at<2>().valid(); }
-  uint32_t order() const { return at<2>().as_uint32(); }
-};
-
-class AllocPagesSysEndFtraceEvent : public ::protozero::Message {
- public:
-  using Decoder = AllocPagesSysEndFtraceEvent_Decoder;
-  enum : int32_t {
-    kGfpFlagsFieldNumber = 1,
-    kOrderFieldNumber = 2,
-  };
-
-  using FieldMetadata_GfpFlags =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      AllocPagesSysEndFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_GfpFlags kGfpFlags() { return {}; }
-  void set_gfp_flags(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_GfpFlags::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Order =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      AllocPagesSysEndFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Order kOrder() { return {}; }
-  void set_order(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Order::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-};
-
-class AllocPagesIommuStartFtraceEvent_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/2, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  AllocPagesIommuStartFtraceEvent_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit AllocPagesIommuStartFtraceEvent_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit AllocPagesIommuStartFtraceEvent_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_gfp_flags() const { return at<1>().valid(); }
-  uint32_t gfp_flags() const { return at<1>().as_uint32(); }
-  bool has_order() const { return at<2>().valid(); }
-  uint32_t order() const { return at<2>().as_uint32(); }
-};
-
-class AllocPagesIommuStartFtraceEvent : public ::protozero::Message {
- public:
-  using Decoder = AllocPagesIommuStartFtraceEvent_Decoder;
-  enum : int32_t {
-    kGfpFlagsFieldNumber = 1,
-    kOrderFieldNumber = 2,
-  };
-
-  using FieldMetadata_GfpFlags =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      AllocPagesIommuStartFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_GfpFlags kGfpFlags() { return {}; }
-  void set_gfp_flags(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_GfpFlags::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Order =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      AllocPagesIommuStartFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Order kOrder() { return {}; }
-  void set_order(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Order::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-};
-
-class AllocPagesIommuFailFtraceEvent_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/2, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  AllocPagesIommuFailFtraceEvent_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit AllocPagesIommuFailFtraceEvent_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit AllocPagesIommuFailFtraceEvent_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_gfp_flags() const { return at<1>().valid(); }
-  uint32_t gfp_flags() const { return at<1>().as_uint32(); }
-  bool has_order() const { return at<2>().valid(); }
-  uint32_t order() const { return at<2>().as_uint32(); }
-};
-
-class AllocPagesIommuFailFtraceEvent : public ::protozero::Message {
- public:
-  using Decoder = AllocPagesIommuFailFtraceEvent_Decoder;
-  enum : int32_t {
-    kGfpFlagsFieldNumber = 1,
-    kOrderFieldNumber = 2,
-  };
-
-  using FieldMetadata_GfpFlags =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      AllocPagesIommuFailFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_GfpFlags kGfpFlags() { return {}; }
-  void set_gfp_flags(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_GfpFlags::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Order =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      AllocPagesIommuFailFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Order kOrder() { return {}; }
-  void set_order(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Order::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-};
-
-class AllocPagesIommuEndFtraceEvent_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/2, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  AllocPagesIommuEndFtraceEvent_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit AllocPagesIommuEndFtraceEvent_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit AllocPagesIommuEndFtraceEvent_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_gfp_flags() const { return at<1>().valid(); }
-  uint32_t gfp_flags() const { return at<1>().as_uint32(); }
-  bool has_order() const { return at<2>().valid(); }
-  uint32_t order() const { return at<2>().as_uint32(); }
-};
-
-class AllocPagesIommuEndFtraceEvent : public ::protozero::Message {
- public:
-  using Decoder = AllocPagesIommuEndFtraceEvent_Decoder;
-  enum : int32_t {
-    kGfpFlagsFieldNumber = 1,
-    kOrderFieldNumber = 2,
-  };
-
-  using FieldMetadata_GfpFlags =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      AllocPagesIommuEndFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_GfpFlags kGfpFlags() { return {}; }
-  void set_gfp_flags(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_GfpFlags::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Order =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      AllocPagesIommuEndFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Order kOrder() { return {}; }
-  void set_order(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Order::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-};
-
-} // Namespace.
-} // Namespace.
-} // Namespace.
-#endif  // Include guard.
-// gen_amalgamated begin header: gen/protos/perfetto/trace/ftrace/lowmemorykiller.pbzero.h
-// Autogenerated by the ProtoZero compiler plugin. DO NOT EDIT.
-
-#ifndef PERFETTO_PROTOS_PROTOS_PERFETTO_TRACE_FTRACE_LOWMEMORYKILLER_PROTO_H_
-#define PERFETTO_PROTOS_PROTOS_PERFETTO_TRACE_FTRACE_LOWMEMORYKILLER_PROTO_H_
-
-#include <stddef.h>
-#include <stdint.h>
-
-// gen_amalgamated expanded: #include "perfetto/protozero/field_writer.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/message.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/packed_repeated_fields.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/proto_decoder.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/proto_utils.h"
-
-namespace perfetto {
-namespace protos {
-namespace pbzero {
-
-
-class LowmemoryKillFtraceEvent_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/5, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  LowmemoryKillFtraceEvent_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit LowmemoryKillFtraceEvent_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit LowmemoryKillFtraceEvent_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_comm() const { return at<1>().valid(); }
-  ::protozero::ConstChars comm() const { return at<1>().as_string(); }
-  bool has_pid() const { return at<2>().valid(); }
-  int32_t pid() const { return at<2>().as_int32(); }
-  bool has_pagecache_size() const { return at<3>().valid(); }
-  int64_t pagecache_size() const { return at<3>().as_int64(); }
-  bool has_pagecache_limit() const { return at<4>().valid(); }
-  int64_t pagecache_limit() const { return at<4>().as_int64(); }
-  bool has_free() const { return at<5>().valid(); }
-  int64_t free() const { return at<5>().as_int64(); }
-};
-
-class LowmemoryKillFtraceEvent : public ::protozero::Message {
- public:
-  using Decoder = LowmemoryKillFtraceEvent_Decoder;
-  enum : int32_t {
-    kCommFieldNumber = 1,
-    kPidFieldNumber = 2,
-    kPagecacheSizeFieldNumber = 3,
-    kPagecacheLimitFieldNumber = 4,
-    kFreeFieldNumber = 5,
-  };
-
-  using FieldMetadata_Comm =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kString,
-      std::string,
-      LowmemoryKillFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Comm kComm() { return {}; }
-  void set_comm(const char* data, size_t size) {
-    AppendBytes(FieldMetadata_Comm::kFieldId, data, size);
-  }
-  void set_comm(std::string value) {
-    static constexpr uint32_t field_id = FieldMetadata_Comm::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kString>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Pid =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt32,
-      int32_t,
-      LowmemoryKillFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Pid kPid() { return {}; }
-  void set_pid(int32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Pid::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_PagecacheSize =
-    ::protozero::proto_utils::FieldMetadata<
-      3,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt64,
-      int64_t,
-      LowmemoryKillFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_PagecacheSize kPagecacheSize() { return {}; }
-  void set_pagecache_size(int64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_PagecacheSize::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_PagecacheLimit =
-    ::protozero::proto_utils::FieldMetadata<
-      4,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt64,
-      int64_t,
-      LowmemoryKillFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_PagecacheLimit kPagecacheLimit() { return {}; }
-  void set_pagecache_limit(int64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_PagecacheLimit::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Free =
-    ::protozero::proto_utils::FieldMetadata<
-      5,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt64,
-      int64_t,
-      LowmemoryKillFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Free kFree() { return {}; }
-  void set_free(int64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Free::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt64>
-        ::Append(*this, field_id, value);
-  }
-};
-
-} // Namespace.
-} // Namespace.
-} // Namespace.
-#endif  // Include guard.
-// gen_amalgamated begin header: gen/protos/perfetto/trace/ftrace/mali.pbzero.h
-// Autogenerated by the ProtoZero compiler plugin. DO NOT EDIT.
-
-#ifndef PERFETTO_PROTOS_PROTOS_PERFETTO_TRACE_FTRACE_MALI_PROTO_H_
-#define PERFETTO_PROTOS_PROTOS_PERFETTO_TRACE_FTRACE_MALI_PROTO_H_
-
-#include <stddef.h>
-#include <stdint.h>
-
-// gen_amalgamated expanded: #include "perfetto/protozero/field_writer.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/message.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/packed_repeated_fields.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/proto_decoder.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/proto_utils.h"
-
-namespace perfetto {
-namespace protos {
-namespace pbzero {
-
-
-class MaliTracingMarkWriteFtraceEvent_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/4, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  MaliTracingMarkWriteFtraceEvent_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit MaliTracingMarkWriteFtraceEvent_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit MaliTracingMarkWriteFtraceEvent_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_name() const { return at<1>().valid(); }
-  ::protozero::ConstChars name() const { return at<1>().as_string(); }
-  bool has_pid() const { return at<2>().valid(); }
-  int32_t pid() const { return at<2>().as_int32(); }
-  bool has_type() const { return at<3>().valid(); }
-  uint32_t type() const { return at<3>().as_uint32(); }
-  bool has_value() const { return at<4>().valid(); }
-  int32_t value() const { return at<4>().as_int32(); }
-};
-
-class MaliTracingMarkWriteFtraceEvent : public ::protozero::Message {
- public:
-  using Decoder = MaliTracingMarkWriteFtraceEvent_Decoder;
-  enum : int32_t {
-    kNameFieldNumber = 1,
-    kPidFieldNumber = 2,
-    kTypeFieldNumber = 3,
-    kValueFieldNumber = 4,
-  };
-
-  using FieldMetadata_Name =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kString,
-      std::string,
-      MaliTracingMarkWriteFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Name kName() { return {}; }
-  void set_name(const char* data, size_t size) {
-    AppendBytes(FieldMetadata_Name::kFieldId, data, size);
-  }
-  void set_name(std::string value) {
-    static constexpr uint32_t field_id = FieldMetadata_Name::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kString>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Pid =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt32,
-      int32_t,
-      MaliTracingMarkWriteFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Pid kPid() { return {}; }
-  void set_pid(int32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Pid::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Type =
-    ::protozero::proto_utils::FieldMetadata<
-      3,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      MaliTracingMarkWriteFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Type kType() { return {}; }
-  void set_type(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Type::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Value =
-    ::protozero::proto_utils::FieldMetadata<
-      4,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt32,
-      int32_t,
-      MaliTracingMarkWriteFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Value kValue() { return {}; }
-  void set_value(int32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Value::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt32>
-        ::Append(*this, field_id, value);
-  }
-};
-
-} // Namespace.
-} // Namespace.
-} // Namespace.
-#endif  // Include guard.
-// gen_amalgamated begin header: gen/protos/perfetto/trace/ftrace/mdss.pbzero.h
-// Autogenerated by the ProtoZero compiler plugin. DO NOT EDIT.
-
-#ifndef PERFETTO_PROTOS_PROTOS_PERFETTO_TRACE_FTRACE_MDSS_PROTO_H_
-#define PERFETTO_PROTOS_PROTOS_PERFETTO_TRACE_FTRACE_MDSS_PROTO_H_
-
-#include <stddef.h>
-#include <stdint.h>
-
-// gen_amalgamated expanded: #include "perfetto/protozero/field_writer.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/message.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/packed_repeated_fields.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/proto_decoder.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/proto_utils.h"
-
-namespace perfetto {
-namespace protos {
-namespace pbzero {
-
-
-class RotatorBwAoAsContextFtraceEvent_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/1, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  RotatorBwAoAsContextFtraceEvent_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit RotatorBwAoAsContextFtraceEvent_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit RotatorBwAoAsContextFtraceEvent_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_state() const { return at<1>().valid(); }
-  uint32_t state() const { return at<1>().as_uint32(); }
-};
-
-class RotatorBwAoAsContextFtraceEvent : public ::protozero::Message {
- public:
-  using Decoder = RotatorBwAoAsContextFtraceEvent_Decoder;
-  enum : int32_t {
-    kStateFieldNumber = 1,
-  };
-
-  using FieldMetadata_State =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      RotatorBwAoAsContextFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_State kState() { return {}; }
-  void set_state(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_State::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-};
-
-class MdpPerfUpdateBusFtraceEvent_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/3, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  MdpPerfUpdateBusFtraceEvent_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit MdpPerfUpdateBusFtraceEvent_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit MdpPerfUpdateBusFtraceEvent_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_client() const { return at<1>().valid(); }
-  int32_t client() const { return at<1>().as_int32(); }
-  bool has_ab_quota() const { return at<2>().valid(); }
-  uint64_t ab_quota() const { return at<2>().as_uint64(); }
-  bool has_ib_quota() const { return at<3>().valid(); }
-  uint64_t ib_quota() const { return at<3>().as_uint64(); }
-};
-
-class MdpPerfUpdateBusFtraceEvent : public ::protozero::Message {
- public:
-  using Decoder = MdpPerfUpdateBusFtraceEvent_Decoder;
-  enum : int32_t {
-    kClientFieldNumber = 1,
-    kAbQuotaFieldNumber = 2,
-    kIbQuotaFieldNumber = 3,
-  };
-
-  using FieldMetadata_Client =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt32,
-      int32_t,
-      MdpPerfUpdateBusFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Client kClient() { return {}; }
-  void set_client(int32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Client::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_AbQuota =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      MdpPerfUpdateBusFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_AbQuota kAbQuota() { return {}; }
-  void set_ab_quota(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_AbQuota::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_IbQuota =
-    ::protozero::proto_utils::FieldMetadata<
-      3,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      MdpPerfUpdateBusFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_IbQuota kIbQuota() { return {}; }
-  void set_ib_quota(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_IbQuota::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-};
-
-class MdpPerfPrefillCalcFtraceEvent_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/10, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  MdpPerfPrefillCalcFtraceEvent_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit MdpPerfPrefillCalcFtraceEvent_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit MdpPerfPrefillCalcFtraceEvent_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_pnum() const { return at<1>().valid(); }
-  uint32_t pnum() const { return at<1>().as_uint32(); }
-  bool has_latency_buf() const { return at<2>().valid(); }
-  uint32_t latency_buf() const { return at<2>().as_uint32(); }
-  bool has_ot() const { return at<3>().valid(); }
-  uint32_t ot() const { return at<3>().as_uint32(); }
-  bool has_y_buf() const { return at<4>().valid(); }
-  uint32_t y_buf() const { return at<4>().as_uint32(); }
-  bool has_y_scaler() const { return at<5>().valid(); }
-  uint32_t y_scaler() const { return at<5>().as_uint32(); }
-  bool has_pp_lines() const { return at<6>().valid(); }
-  uint32_t pp_lines() const { return at<6>().as_uint32(); }
-  bool has_pp_bytes() const { return at<7>().valid(); }
-  uint32_t pp_bytes() const { return at<7>().as_uint32(); }
-  bool has_post_sc() const { return at<8>().valid(); }
-  uint32_t post_sc() const { return at<8>().as_uint32(); }
-  bool has_fbc_bytes() const { return at<9>().valid(); }
-  uint32_t fbc_bytes() const { return at<9>().as_uint32(); }
-  bool has_prefill_bytes() const { return at<10>().valid(); }
-  uint32_t prefill_bytes() const { return at<10>().as_uint32(); }
-};
-
-class MdpPerfPrefillCalcFtraceEvent : public ::protozero::Message {
- public:
-  using Decoder = MdpPerfPrefillCalcFtraceEvent_Decoder;
-  enum : int32_t {
-    kPnumFieldNumber = 1,
-    kLatencyBufFieldNumber = 2,
-    kOtFieldNumber = 3,
-    kYBufFieldNumber = 4,
-    kYScalerFieldNumber = 5,
-    kPpLinesFieldNumber = 6,
-    kPpBytesFieldNumber = 7,
-    kPostScFieldNumber = 8,
-    kFbcBytesFieldNumber = 9,
-    kPrefillBytesFieldNumber = 10,
-  };
-
-  using FieldMetadata_Pnum =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      MdpPerfPrefillCalcFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Pnum kPnum() { return {}; }
-  void set_pnum(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Pnum::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_LatencyBuf =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      MdpPerfPrefillCalcFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_LatencyBuf kLatencyBuf() { return {}; }
-  void set_latency_buf(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_LatencyBuf::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Ot =
-    ::protozero::proto_utils::FieldMetadata<
-      3,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      MdpPerfPrefillCalcFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Ot kOt() { return {}; }
-  void set_ot(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Ot::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_YBuf =
-    ::protozero::proto_utils::FieldMetadata<
-      4,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      MdpPerfPrefillCalcFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_YBuf kYBuf() { return {}; }
-  void set_y_buf(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_YBuf::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_YScaler =
-    ::protozero::proto_utils::FieldMetadata<
-      5,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      MdpPerfPrefillCalcFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_YScaler kYScaler() { return {}; }
-  void set_y_scaler(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_YScaler::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_PpLines =
-    ::protozero::proto_utils::FieldMetadata<
-      6,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      MdpPerfPrefillCalcFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_PpLines kPpLines() { return {}; }
-  void set_pp_lines(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_PpLines::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_PpBytes =
-    ::protozero::proto_utils::FieldMetadata<
-      7,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      MdpPerfPrefillCalcFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_PpBytes kPpBytes() { return {}; }
-  void set_pp_bytes(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_PpBytes::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_PostSc =
-    ::protozero::proto_utils::FieldMetadata<
-      8,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      MdpPerfPrefillCalcFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_PostSc kPostSc() { return {}; }
-  void set_post_sc(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_PostSc::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_FbcBytes =
-    ::protozero::proto_utils::FieldMetadata<
-      9,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      MdpPerfPrefillCalcFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_FbcBytes kFbcBytes() { return {}; }
-  void set_fbc_bytes(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_FbcBytes::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_PrefillBytes =
-    ::protozero::proto_utils::FieldMetadata<
-      10,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      MdpPerfPrefillCalcFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_PrefillBytes kPrefillBytes() { return {}; }
-  void set_prefill_bytes(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_PrefillBytes::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-};
-
-class MdpCmdWaitPingpongFtraceEvent_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/2, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  MdpCmdWaitPingpongFtraceEvent_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit MdpCmdWaitPingpongFtraceEvent_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit MdpCmdWaitPingpongFtraceEvent_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_ctl_num() const { return at<1>().valid(); }
-  uint32_t ctl_num() const { return at<1>().as_uint32(); }
-  bool has_kickoff_cnt() const { return at<2>().valid(); }
-  int32_t kickoff_cnt() const { return at<2>().as_int32(); }
-};
-
-class MdpCmdWaitPingpongFtraceEvent : public ::protozero::Message {
- public:
-  using Decoder = MdpCmdWaitPingpongFtraceEvent_Decoder;
-  enum : int32_t {
-    kCtlNumFieldNumber = 1,
-    kKickoffCntFieldNumber = 2,
-  };
-
-  using FieldMetadata_CtlNum =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      MdpCmdWaitPingpongFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_CtlNum kCtlNum() { return {}; }
-  void set_ctl_num(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_CtlNum::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_KickoffCnt =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt32,
-      int32_t,
-      MdpCmdWaitPingpongFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_KickoffCnt kKickoffCnt() { return {}; }
-  void set_kickoff_cnt(int32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_KickoffCnt::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt32>
-        ::Append(*this, field_id, value);
-  }
-};
-
-class MdpVideoUnderrunDoneFtraceEvent_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/2, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  MdpVideoUnderrunDoneFtraceEvent_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit MdpVideoUnderrunDoneFtraceEvent_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit MdpVideoUnderrunDoneFtraceEvent_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_ctl_num() const { return at<1>().valid(); }
-  uint32_t ctl_num() const { return at<1>().as_uint32(); }
-  bool has_underrun_cnt() const { return at<2>().valid(); }
-  uint32_t underrun_cnt() const { return at<2>().as_uint32(); }
-};
-
-class MdpVideoUnderrunDoneFtraceEvent : public ::protozero::Message {
- public:
-  using Decoder = MdpVideoUnderrunDoneFtraceEvent_Decoder;
-  enum : int32_t {
-    kCtlNumFieldNumber = 1,
-    kUnderrunCntFieldNumber = 2,
-  };
-
-  using FieldMetadata_CtlNum =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      MdpVideoUnderrunDoneFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_CtlNum kCtlNum() { return {}; }
-  void set_ctl_num(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_CtlNum::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_UnderrunCnt =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      MdpVideoUnderrunDoneFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_UnderrunCnt kUnderrunCnt() { return {}; }
-  void set_underrun_cnt(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_UnderrunCnt::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-};
-
-class MdpPerfSetWmLevelsFtraceEvent_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/8, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  MdpPerfSetWmLevelsFtraceEvent_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit MdpPerfSetWmLevelsFtraceEvent_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit MdpPerfSetWmLevelsFtraceEvent_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_pnum() const { return at<1>().valid(); }
-  uint32_t pnum() const { return at<1>().as_uint32(); }
-  bool has_use_space() const { return at<2>().valid(); }
-  uint32_t use_space() const { return at<2>().as_uint32(); }
-  bool has_priority_bytes() const { return at<3>().valid(); }
-  uint32_t priority_bytes() const { return at<3>().as_uint32(); }
-  bool has_wm0() const { return at<4>().valid(); }
-  uint32_t wm0() const { return at<4>().as_uint32(); }
-  bool has_wm1() const { return at<5>().valid(); }
-  uint32_t wm1() const { return at<5>().as_uint32(); }
-  bool has_wm2() const { return at<6>().valid(); }
-  uint32_t wm2() const { return at<6>().as_uint32(); }
-  bool has_mb_cnt() const { return at<7>().valid(); }
-  uint32_t mb_cnt() const { return at<7>().as_uint32(); }
-  bool has_mb_size() const { return at<8>().valid(); }
-  uint32_t mb_size() const { return at<8>().as_uint32(); }
-};
-
-class MdpPerfSetWmLevelsFtraceEvent : public ::protozero::Message {
- public:
-  using Decoder = MdpPerfSetWmLevelsFtraceEvent_Decoder;
-  enum : int32_t {
-    kPnumFieldNumber = 1,
-    kUseSpaceFieldNumber = 2,
-    kPriorityBytesFieldNumber = 3,
-    kWm0FieldNumber = 4,
-    kWm1FieldNumber = 5,
-    kWm2FieldNumber = 6,
-    kMbCntFieldNumber = 7,
-    kMbSizeFieldNumber = 8,
-  };
-
-  using FieldMetadata_Pnum =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      MdpPerfSetWmLevelsFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Pnum kPnum() { return {}; }
-  void set_pnum(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Pnum::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_UseSpace =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      MdpPerfSetWmLevelsFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_UseSpace kUseSpace() { return {}; }
-  void set_use_space(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_UseSpace::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_PriorityBytes =
-    ::protozero::proto_utils::FieldMetadata<
-      3,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      MdpPerfSetWmLevelsFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_PriorityBytes kPriorityBytes() { return {}; }
-  void set_priority_bytes(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_PriorityBytes::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Wm0 =
-    ::protozero::proto_utils::FieldMetadata<
-      4,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      MdpPerfSetWmLevelsFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Wm0 kWm0() { return {}; }
-  void set_wm0(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Wm0::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Wm1 =
-    ::protozero::proto_utils::FieldMetadata<
-      5,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      MdpPerfSetWmLevelsFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Wm1 kWm1() { return {}; }
-  void set_wm1(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Wm1::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Wm2 =
-    ::protozero::proto_utils::FieldMetadata<
-      6,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      MdpPerfSetWmLevelsFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Wm2 kWm2() { return {}; }
-  void set_wm2(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Wm2::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_MbCnt =
-    ::protozero::proto_utils::FieldMetadata<
-      7,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      MdpPerfSetWmLevelsFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_MbCnt kMbCnt() { return {}; }
-  void set_mb_cnt(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_MbCnt::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_MbSize =
-    ::protozero::proto_utils::FieldMetadata<
-      8,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      MdpPerfSetWmLevelsFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_MbSize kMbSize() { return {}; }
-  void set_mb_size(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_MbSize::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-};
-
-class MdpMixerUpdateFtraceEvent_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/1, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  MdpMixerUpdateFtraceEvent_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit MdpMixerUpdateFtraceEvent_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit MdpMixerUpdateFtraceEvent_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_mixer_num() const { return at<1>().valid(); }
-  uint32_t mixer_num() const { return at<1>().as_uint32(); }
-};
-
-class MdpMixerUpdateFtraceEvent : public ::protozero::Message {
- public:
-  using Decoder = MdpMixerUpdateFtraceEvent_Decoder;
-  enum : int32_t {
-    kMixerNumFieldNumber = 1,
-  };
-
-  using FieldMetadata_MixerNum =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      MdpMixerUpdateFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_MixerNum kMixerNum() { return {}; }
-  void set_mixer_num(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_MixerNum::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-};
-
-class MdpCmdReleaseBwFtraceEvent_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/1, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  MdpCmdReleaseBwFtraceEvent_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit MdpCmdReleaseBwFtraceEvent_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit MdpCmdReleaseBwFtraceEvent_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_ctl_num() const { return at<1>().valid(); }
-  uint32_t ctl_num() const { return at<1>().as_uint32(); }
-};
-
-class MdpCmdReleaseBwFtraceEvent : public ::protozero::Message {
- public:
-  using Decoder = MdpCmdReleaseBwFtraceEvent_Decoder;
-  enum : int32_t {
-    kCtlNumFieldNumber = 1,
-  };
-
-  using FieldMetadata_CtlNum =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      MdpCmdReleaseBwFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_CtlNum kCtlNum() { return {}; }
-  void set_ctl_num(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_CtlNum::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-};
-
-class MdpTraceCounterFtraceEvent_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/3, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  MdpTraceCounterFtraceEvent_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit MdpTraceCounterFtraceEvent_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit MdpTraceCounterFtraceEvent_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_pid() const { return at<1>().valid(); }
-  int32_t pid() const { return at<1>().as_int32(); }
-  bool has_counter_name() const { return at<2>().valid(); }
-  ::protozero::ConstChars counter_name() const { return at<2>().as_string(); }
-  bool has_value() const { return at<3>().valid(); }
-  int32_t value() const { return at<3>().as_int32(); }
-};
-
-class MdpTraceCounterFtraceEvent : public ::protozero::Message {
- public:
-  using Decoder = MdpTraceCounterFtraceEvent_Decoder;
-  enum : int32_t {
-    kPidFieldNumber = 1,
-    kCounterNameFieldNumber = 2,
-    kValueFieldNumber = 3,
-  };
-
-  using FieldMetadata_Pid =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt32,
-      int32_t,
-      MdpTraceCounterFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Pid kPid() { return {}; }
-  void set_pid(int32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Pid::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_CounterName =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kString,
-      std::string,
-      MdpTraceCounterFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_CounterName kCounterName() { return {}; }
-  void set_counter_name(const char* data, size_t size) {
-    AppendBytes(FieldMetadata_CounterName::kFieldId, data, size);
-  }
-  void set_counter_name(std::string value) {
-    static constexpr uint32_t field_id = FieldMetadata_CounterName::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kString>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Value =
-    ::protozero::proto_utils::FieldMetadata<
-      3,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt32,
-      int32_t,
-      MdpTraceCounterFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Value kValue() { return {}; }
-  void set_value(int32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Value::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt32>
-        ::Append(*this, field_id, value);
-  }
-};
-
-class MdpPerfSetQosLutsFtraceEvent_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/7, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  MdpPerfSetQosLutsFtraceEvent_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit MdpPerfSetQosLutsFtraceEvent_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit MdpPerfSetQosLutsFtraceEvent_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_pnum() const { return at<1>().valid(); }
-  uint32_t pnum() const { return at<1>().as_uint32(); }
-  bool has_fmt() const { return at<2>().valid(); }
-  uint32_t fmt() const { return at<2>().as_uint32(); }
-  bool has_intf() const { return at<3>().valid(); }
-  uint32_t intf() const { return at<3>().as_uint32(); }
-  bool has_rot() const { return at<4>().valid(); }
-  uint32_t rot() const { return at<4>().as_uint32(); }
-  bool has_fl() const { return at<5>().valid(); }
-  uint32_t fl() const { return at<5>().as_uint32(); }
-  bool has_lut() const { return at<6>().valid(); }
-  uint32_t lut() const { return at<6>().as_uint32(); }
-  bool has_linear() const { return at<7>().valid(); }
-  uint32_t linear() const { return at<7>().as_uint32(); }
-};
-
-class MdpPerfSetQosLutsFtraceEvent : public ::protozero::Message {
- public:
-  using Decoder = MdpPerfSetQosLutsFtraceEvent_Decoder;
-  enum : int32_t {
-    kPnumFieldNumber = 1,
-    kFmtFieldNumber = 2,
-    kIntfFieldNumber = 3,
-    kRotFieldNumber = 4,
-    kFlFieldNumber = 5,
-    kLutFieldNumber = 6,
-    kLinearFieldNumber = 7,
-  };
-
-  using FieldMetadata_Pnum =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      MdpPerfSetQosLutsFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Pnum kPnum() { return {}; }
-  void set_pnum(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Pnum::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Fmt =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      MdpPerfSetQosLutsFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Fmt kFmt() { return {}; }
-  void set_fmt(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Fmt::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Intf =
-    ::protozero::proto_utils::FieldMetadata<
-      3,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      MdpPerfSetQosLutsFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Intf kIntf() { return {}; }
-  void set_intf(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Intf::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Rot =
-    ::protozero::proto_utils::FieldMetadata<
-      4,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      MdpPerfSetQosLutsFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Rot kRot() { return {}; }
-  void set_rot(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Rot::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Fl =
-    ::protozero::proto_utils::FieldMetadata<
-      5,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      MdpPerfSetQosLutsFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Fl kFl() { return {}; }
-  void set_fl(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Fl::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Lut =
-    ::protozero::proto_utils::FieldMetadata<
-      6,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      MdpPerfSetQosLutsFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Lut kLut() { return {}; }
-  void set_lut(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Lut::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Linear =
-    ::protozero::proto_utils::FieldMetadata<
-      7,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      MdpPerfSetQosLutsFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Linear kLinear() { return {}; }
-  void set_linear(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Linear::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-};
-
-class MdpMisrCrcFtraceEvent_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/3, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  MdpMisrCrcFtraceEvent_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit MdpMisrCrcFtraceEvent_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit MdpMisrCrcFtraceEvent_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_block_id() const { return at<1>().valid(); }
-  uint32_t block_id() const { return at<1>().as_uint32(); }
-  bool has_vsync_cnt() const { return at<2>().valid(); }
-  uint32_t vsync_cnt() const { return at<2>().as_uint32(); }
-  bool has_crc() const { return at<3>().valid(); }
-  uint32_t crc() const { return at<3>().as_uint32(); }
-};
-
-class MdpMisrCrcFtraceEvent : public ::protozero::Message {
- public:
-  using Decoder = MdpMisrCrcFtraceEvent_Decoder;
-  enum : int32_t {
-    kBlockIdFieldNumber = 1,
-    kVsyncCntFieldNumber = 2,
-    kCrcFieldNumber = 3,
-  };
-
-  using FieldMetadata_BlockId =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      MdpMisrCrcFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_BlockId kBlockId() { return {}; }
-  void set_block_id(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_BlockId::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_VsyncCnt =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      MdpMisrCrcFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_VsyncCnt kVsyncCnt() { return {}; }
-  void set_vsync_cnt(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_VsyncCnt::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Crc =
-    ::protozero::proto_utils::FieldMetadata<
-      3,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      MdpMisrCrcFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Crc kCrc() { return {}; }
-  void set_crc(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Crc::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-};
-
-class MdpCmdReadptrDoneFtraceEvent_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/2, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  MdpCmdReadptrDoneFtraceEvent_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit MdpCmdReadptrDoneFtraceEvent_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit MdpCmdReadptrDoneFtraceEvent_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_ctl_num() const { return at<1>().valid(); }
-  uint32_t ctl_num() const { return at<1>().as_uint32(); }
-  bool has_koff_cnt() const { return at<2>().valid(); }
-  int32_t koff_cnt() const { return at<2>().as_int32(); }
-};
-
-class MdpCmdReadptrDoneFtraceEvent : public ::protozero::Message {
- public:
-  using Decoder = MdpCmdReadptrDoneFtraceEvent_Decoder;
-  enum : int32_t {
-    kCtlNumFieldNumber = 1,
-    kKoffCntFieldNumber = 2,
-  };
-
-  using FieldMetadata_CtlNum =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      MdpCmdReadptrDoneFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_CtlNum kCtlNum() { return {}; }
-  void set_ctl_num(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_CtlNum::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_KoffCnt =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt32,
-      int32_t,
-      MdpCmdReadptrDoneFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_KoffCnt kKoffCnt() { return {}; }
-  void set_koff_cnt(int32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_KoffCnt::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt32>
-        ::Append(*this, field_id, value);
-  }
-};
-
-class MdpSsppSetFtraceEvent_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/16, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  MdpSsppSetFtraceEvent_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit MdpSsppSetFtraceEvent_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit MdpSsppSetFtraceEvent_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_num() const { return at<1>().valid(); }
-  uint32_t num() const { return at<1>().as_uint32(); }
-  bool has_play_cnt() const { return at<2>().valid(); }
-  uint32_t play_cnt() const { return at<2>().as_uint32(); }
-  bool has_mixer() const { return at<3>().valid(); }
-  uint32_t mixer() const { return at<3>().as_uint32(); }
-  bool has_stage() const { return at<4>().valid(); }
-  uint32_t stage() const { return at<4>().as_uint32(); }
-  bool has_flags() const { return at<5>().valid(); }
-  uint32_t flags() const { return at<5>().as_uint32(); }
-  bool has_format() const { return at<6>().valid(); }
-  uint32_t format() const { return at<6>().as_uint32(); }
-  bool has_img_w() const { return at<7>().valid(); }
-  uint32_t img_w() const { return at<7>().as_uint32(); }
-  bool has_img_h() const { return at<8>().valid(); }
-  uint32_t img_h() const { return at<8>().as_uint32(); }
-  bool has_src_x() const { return at<9>().valid(); }
-  uint32_t src_x() const { return at<9>().as_uint32(); }
-  bool has_src_y() const { return at<10>().valid(); }
-  uint32_t src_y() const { return at<10>().as_uint32(); }
-  bool has_src_w() const { return at<11>().valid(); }
-  uint32_t src_w() const { return at<11>().as_uint32(); }
-  bool has_src_h() const { return at<12>().valid(); }
-  uint32_t src_h() const { return at<12>().as_uint32(); }
-  bool has_dst_x() const { return at<13>().valid(); }
-  uint32_t dst_x() const { return at<13>().as_uint32(); }
-  bool has_dst_y() const { return at<14>().valid(); }
-  uint32_t dst_y() const { return at<14>().as_uint32(); }
-  bool has_dst_w() const { return at<15>().valid(); }
-  uint32_t dst_w() const { return at<15>().as_uint32(); }
-  bool has_dst_h() const { return at<16>().valid(); }
-  uint32_t dst_h() const { return at<16>().as_uint32(); }
-};
-
-class MdpSsppSetFtraceEvent : public ::protozero::Message {
- public:
-  using Decoder = MdpSsppSetFtraceEvent_Decoder;
-  enum : int32_t {
-    kNumFieldNumber = 1,
-    kPlayCntFieldNumber = 2,
-    kMixerFieldNumber = 3,
-    kStageFieldNumber = 4,
-    kFlagsFieldNumber = 5,
-    kFormatFieldNumber = 6,
-    kImgWFieldNumber = 7,
-    kImgHFieldNumber = 8,
-    kSrcXFieldNumber = 9,
-    kSrcYFieldNumber = 10,
-    kSrcWFieldNumber = 11,
-    kSrcHFieldNumber = 12,
-    kDstXFieldNumber = 13,
-    kDstYFieldNumber = 14,
-    kDstWFieldNumber = 15,
-    kDstHFieldNumber = 16,
-  };
-
-  using FieldMetadata_Num =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      MdpSsppSetFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Num kNum() { return {}; }
-  void set_num(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Num::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_PlayCnt =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      MdpSsppSetFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_PlayCnt kPlayCnt() { return {}; }
-  void set_play_cnt(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_PlayCnt::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Mixer =
-    ::protozero::proto_utils::FieldMetadata<
-      3,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      MdpSsppSetFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Mixer kMixer() { return {}; }
-  void set_mixer(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Mixer::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Stage =
-    ::protozero::proto_utils::FieldMetadata<
-      4,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      MdpSsppSetFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Stage kStage() { return {}; }
-  void set_stage(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Stage::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Flags =
-    ::protozero::proto_utils::FieldMetadata<
-      5,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      MdpSsppSetFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Flags kFlags() { return {}; }
-  void set_flags(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Flags::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Format =
-    ::protozero::proto_utils::FieldMetadata<
-      6,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      MdpSsppSetFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Format kFormat() { return {}; }
-  void set_format(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Format::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_ImgW =
-    ::protozero::proto_utils::FieldMetadata<
-      7,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      MdpSsppSetFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_ImgW kImgW() { return {}; }
-  void set_img_w(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_ImgW::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_ImgH =
-    ::protozero::proto_utils::FieldMetadata<
-      8,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      MdpSsppSetFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_ImgH kImgH() { return {}; }
-  void set_img_h(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_ImgH::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_SrcX =
-    ::protozero::proto_utils::FieldMetadata<
-      9,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      MdpSsppSetFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_SrcX kSrcX() { return {}; }
-  void set_src_x(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_SrcX::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_SrcY =
-    ::protozero::proto_utils::FieldMetadata<
-      10,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      MdpSsppSetFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_SrcY kSrcY() { return {}; }
-  void set_src_y(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_SrcY::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_SrcW =
-    ::protozero::proto_utils::FieldMetadata<
-      11,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      MdpSsppSetFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_SrcW kSrcW() { return {}; }
-  void set_src_w(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_SrcW::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_SrcH =
-    ::protozero::proto_utils::FieldMetadata<
-      12,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      MdpSsppSetFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_SrcH kSrcH() { return {}; }
-  void set_src_h(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_SrcH::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_DstX =
-    ::protozero::proto_utils::FieldMetadata<
-      13,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      MdpSsppSetFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_DstX kDstX() { return {}; }
-  void set_dst_x(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_DstX::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_DstY =
-    ::protozero::proto_utils::FieldMetadata<
-      14,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      MdpSsppSetFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_DstY kDstY() { return {}; }
-  void set_dst_y(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_DstY::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_DstW =
-    ::protozero::proto_utils::FieldMetadata<
-      15,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      MdpSsppSetFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_DstW kDstW() { return {}; }
-  void set_dst_w(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_DstW::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_DstH =
-    ::protozero::proto_utils::FieldMetadata<
-      16,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      MdpSsppSetFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_DstH kDstH() { return {}; }
-  void set_dst_h(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_DstH::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-};
-
-class MdpPerfSetPanicLutsFtraceEvent_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/5, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  MdpPerfSetPanicLutsFtraceEvent_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit MdpPerfSetPanicLutsFtraceEvent_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit MdpPerfSetPanicLutsFtraceEvent_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_pnum() const { return at<1>().valid(); }
-  uint32_t pnum() const { return at<1>().as_uint32(); }
-  bool has_fmt() const { return at<2>().valid(); }
-  uint32_t fmt() const { return at<2>().as_uint32(); }
-  bool has_mode() const { return at<3>().valid(); }
-  uint32_t mode() const { return at<3>().as_uint32(); }
-  bool has_panic_lut() const { return at<4>().valid(); }
-  uint32_t panic_lut() const { return at<4>().as_uint32(); }
-  bool has_robust_lut() const { return at<5>().valid(); }
-  uint32_t robust_lut() const { return at<5>().as_uint32(); }
-};
-
-class MdpPerfSetPanicLutsFtraceEvent : public ::protozero::Message {
- public:
-  using Decoder = MdpPerfSetPanicLutsFtraceEvent_Decoder;
-  enum : int32_t {
-    kPnumFieldNumber = 1,
-    kFmtFieldNumber = 2,
-    kModeFieldNumber = 3,
-    kPanicLutFieldNumber = 4,
-    kRobustLutFieldNumber = 5,
-  };
-
-  using FieldMetadata_Pnum =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      MdpPerfSetPanicLutsFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Pnum kPnum() { return {}; }
-  void set_pnum(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Pnum::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Fmt =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      MdpPerfSetPanicLutsFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Fmt kFmt() { return {}; }
-  void set_fmt(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Fmt::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Mode =
-    ::protozero::proto_utils::FieldMetadata<
-      3,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      MdpPerfSetPanicLutsFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Mode kMode() { return {}; }
-  void set_mode(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Mode::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_PanicLut =
-    ::protozero::proto_utils::FieldMetadata<
-      4,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      MdpPerfSetPanicLutsFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_PanicLut kPanicLut() { return {}; }
-  void set_panic_lut(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_PanicLut::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_RobustLut =
-    ::protozero::proto_utils::FieldMetadata<
-      5,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      MdpPerfSetPanicLutsFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_RobustLut kRobustLut() { return {}; }
-  void set_robust_lut(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_RobustLut::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-};
-
-class MdpCompareBwFtraceEvent_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/8, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  MdpCompareBwFtraceEvent_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit MdpCompareBwFtraceEvent_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit MdpCompareBwFtraceEvent_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_new_ab() const { return at<1>().valid(); }
-  uint64_t new_ab() const { return at<1>().as_uint64(); }
-  bool has_new_ib() const { return at<2>().valid(); }
-  uint64_t new_ib() const { return at<2>().as_uint64(); }
-  bool has_new_wb() const { return at<3>().valid(); }
-  uint64_t new_wb() const { return at<3>().as_uint64(); }
-  bool has_old_ab() const { return at<4>().valid(); }
-  uint64_t old_ab() const { return at<4>().as_uint64(); }
-  bool has_old_ib() const { return at<5>().valid(); }
-  uint64_t old_ib() const { return at<5>().as_uint64(); }
-  bool has_old_wb() const { return at<6>().valid(); }
-  uint64_t old_wb() const { return at<6>().as_uint64(); }
-  bool has_params_changed() const { return at<7>().valid(); }
-  uint32_t params_changed() const { return at<7>().as_uint32(); }
-  bool has_update_bw() const { return at<8>().valid(); }
-  uint32_t update_bw() const { return at<8>().as_uint32(); }
-};
-
-class MdpCompareBwFtraceEvent : public ::protozero::Message {
- public:
-  using Decoder = MdpCompareBwFtraceEvent_Decoder;
-  enum : int32_t {
-    kNewAbFieldNumber = 1,
-    kNewIbFieldNumber = 2,
-    kNewWbFieldNumber = 3,
-    kOldAbFieldNumber = 4,
-    kOldIbFieldNumber = 5,
-    kOldWbFieldNumber = 6,
-    kParamsChangedFieldNumber = 7,
-    kUpdateBwFieldNumber = 8,
-  };
-
-  using FieldMetadata_NewAb =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      MdpCompareBwFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_NewAb kNewAb() { return {}; }
-  void set_new_ab(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_NewAb::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_NewIb =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      MdpCompareBwFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_NewIb kNewIb() { return {}; }
-  void set_new_ib(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_NewIb::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_NewWb =
-    ::protozero::proto_utils::FieldMetadata<
-      3,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      MdpCompareBwFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_NewWb kNewWb() { return {}; }
-  void set_new_wb(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_NewWb::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_OldAb =
-    ::protozero::proto_utils::FieldMetadata<
-      4,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      MdpCompareBwFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_OldAb kOldAb() { return {}; }
-  void set_old_ab(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_OldAb::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_OldIb =
-    ::protozero::proto_utils::FieldMetadata<
-      5,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      MdpCompareBwFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_OldIb kOldIb() { return {}; }
-  void set_old_ib(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_OldIb::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_OldWb =
-    ::protozero::proto_utils::FieldMetadata<
-      6,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      MdpCompareBwFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_OldWb kOldWb() { return {}; }
-  void set_old_wb(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_OldWb::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_ParamsChanged =
-    ::protozero::proto_utils::FieldMetadata<
-      7,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      MdpCompareBwFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_ParamsChanged kParamsChanged() { return {}; }
-  void set_params_changed(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_ParamsChanged::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_UpdateBw =
-    ::protozero::proto_utils::FieldMetadata<
-      8,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      MdpCompareBwFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_UpdateBw kUpdateBw() { return {}; }
-  void set_update_bw(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_UpdateBw::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-};
-
-class MdpCmdPingpongDoneFtraceEvent_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/4, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  MdpCmdPingpongDoneFtraceEvent_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit MdpCmdPingpongDoneFtraceEvent_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit MdpCmdPingpongDoneFtraceEvent_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_ctl_num() const { return at<1>().valid(); }
-  uint32_t ctl_num() const { return at<1>().as_uint32(); }
-  bool has_intf_num() const { return at<2>().valid(); }
-  uint32_t intf_num() const { return at<2>().as_uint32(); }
-  bool has_pp_num() const { return at<3>().valid(); }
-  uint32_t pp_num() const { return at<3>().as_uint32(); }
-  bool has_koff_cnt() const { return at<4>().valid(); }
-  int32_t koff_cnt() const { return at<4>().as_int32(); }
-};
-
-class MdpCmdPingpongDoneFtraceEvent : public ::protozero::Message {
- public:
-  using Decoder = MdpCmdPingpongDoneFtraceEvent_Decoder;
-  enum : int32_t {
-    kCtlNumFieldNumber = 1,
-    kIntfNumFieldNumber = 2,
-    kPpNumFieldNumber = 3,
-    kKoffCntFieldNumber = 4,
-  };
-
-  using FieldMetadata_CtlNum =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      MdpCmdPingpongDoneFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_CtlNum kCtlNum() { return {}; }
-  void set_ctl_num(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_CtlNum::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_IntfNum =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      MdpCmdPingpongDoneFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_IntfNum kIntfNum() { return {}; }
-  void set_intf_num(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_IntfNum::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_PpNum =
-    ::protozero::proto_utils::FieldMetadata<
-      3,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      MdpCmdPingpongDoneFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_PpNum kPpNum() { return {}; }
-  void set_pp_num(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_PpNum::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_KoffCnt =
-    ::protozero::proto_utils::FieldMetadata<
-      4,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt32,
-      int32_t,
-      MdpCmdPingpongDoneFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_KoffCnt kKoffCnt() { return {}; }
-  void set_koff_cnt(int32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_KoffCnt::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt32>
-        ::Append(*this, field_id, value);
-  }
-};
-
-class TracingMarkWriteFtraceEvent_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/3, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  TracingMarkWriteFtraceEvent_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit TracingMarkWriteFtraceEvent_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit TracingMarkWriteFtraceEvent_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_pid() const { return at<1>().valid(); }
-  int32_t pid() const { return at<1>().as_int32(); }
-  bool has_trace_name() const { return at<2>().valid(); }
-  ::protozero::ConstChars trace_name() const { return at<2>().as_string(); }
-  bool has_trace_begin() const { return at<3>().valid(); }
-  uint32_t trace_begin() const { return at<3>().as_uint32(); }
-};
-
-class TracingMarkWriteFtraceEvent : public ::protozero::Message {
- public:
-  using Decoder = TracingMarkWriteFtraceEvent_Decoder;
-  enum : int32_t {
-    kPidFieldNumber = 1,
-    kTraceNameFieldNumber = 2,
-    kTraceBeginFieldNumber = 3,
-  };
-
-  using FieldMetadata_Pid =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt32,
-      int32_t,
-      TracingMarkWriteFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Pid kPid() { return {}; }
-  void set_pid(int32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Pid::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_TraceName =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kString,
-      std::string,
-      TracingMarkWriteFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_TraceName kTraceName() { return {}; }
-  void set_trace_name(const char* data, size_t size) {
-    AppendBytes(FieldMetadata_TraceName::kFieldId, data, size);
-  }
-  void set_trace_name(std::string value) {
-    static constexpr uint32_t field_id = FieldMetadata_TraceName::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kString>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_TraceBegin =
-    ::protozero::proto_utils::FieldMetadata<
-      3,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      TracingMarkWriteFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_TraceBegin kTraceBegin() { return {}; }
-  void set_trace_begin(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_TraceBegin::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-};
-
-class MdpSsppChangeFtraceEvent_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/16, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  MdpSsppChangeFtraceEvent_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit MdpSsppChangeFtraceEvent_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit MdpSsppChangeFtraceEvent_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_num() const { return at<1>().valid(); }
-  uint32_t num() const { return at<1>().as_uint32(); }
-  bool has_play_cnt() const { return at<2>().valid(); }
-  uint32_t play_cnt() const { return at<2>().as_uint32(); }
-  bool has_mixer() const { return at<3>().valid(); }
-  uint32_t mixer() const { return at<3>().as_uint32(); }
-  bool has_stage() const { return at<4>().valid(); }
-  uint32_t stage() const { return at<4>().as_uint32(); }
-  bool has_flags() const { return at<5>().valid(); }
-  uint32_t flags() const { return at<5>().as_uint32(); }
-  bool has_format() const { return at<6>().valid(); }
-  uint32_t format() const { return at<6>().as_uint32(); }
-  bool has_img_w() const { return at<7>().valid(); }
-  uint32_t img_w() const { return at<7>().as_uint32(); }
-  bool has_img_h() const { return at<8>().valid(); }
-  uint32_t img_h() const { return at<8>().as_uint32(); }
-  bool has_src_x() const { return at<9>().valid(); }
-  uint32_t src_x() const { return at<9>().as_uint32(); }
-  bool has_src_y() const { return at<10>().valid(); }
-  uint32_t src_y() const { return at<10>().as_uint32(); }
-  bool has_src_w() const { return at<11>().valid(); }
-  uint32_t src_w() const { return at<11>().as_uint32(); }
-  bool has_src_h() const { return at<12>().valid(); }
-  uint32_t src_h() const { return at<12>().as_uint32(); }
-  bool has_dst_x() const { return at<13>().valid(); }
-  uint32_t dst_x() const { return at<13>().as_uint32(); }
-  bool has_dst_y() const { return at<14>().valid(); }
-  uint32_t dst_y() const { return at<14>().as_uint32(); }
-  bool has_dst_w() const { return at<15>().valid(); }
-  uint32_t dst_w() const { return at<15>().as_uint32(); }
-  bool has_dst_h() const { return at<16>().valid(); }
-  uint32_t dst_h() const { return at<16>().as_uint32(); }
-};
-
-class MdpSsppChangeFtraceEvent : public ::protozero::Message {
- public:
-  using Decoder = MdpSsppChangeFtraceEvent_Decoder;
-  enum : int32_t {
-    kNumFieldNumber = 1,
-    kPlayCntFieldNumber = 2,
-    kMixerFieldNumber = 3,
-    kStageFieldNumber = 4,
-    kFlagsFieldNumber = 5,
-    kFormatFieldNumber = 6,
-    kImgWFieldNumber = 7,
-    kImgHFieldNumber = 8,
-    kSrcXFieldNumber = 9,
-    kSrcYFieldNumber = 10,
-    kSrcWFieldNumber = 11,
-    kSrcHFieldNumber = 12,
-    kDstXFieldNumber = 13,
-    kDstYFieldNumber = 14,
-    kDstWFieldNumber = 15,
-    kDstHFieldNumber = 16,
-  };
-
-  using FieldMetadata_Num =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      MdpSsppChangeFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Num kNum() { return {}; }
-  void set_num(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Num::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_PlayCnt =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      MdpSsppChangeFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_PlayCnt kPlayCnt() { return {}; }
-  void set_play_cnt(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_PlayCnt::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Mixer =
-    ::protozero::proto_utils::FieldMetadata<
-      3,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      MdpSsppChangeFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Mixer kMixer() { return {}; }
-  void set_mixer(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Mixer::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Stage =
-    ::protozero::proto_utils::FieldMetadata<
-      4,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      MdpSsppChangeFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Stage kStage() { return {}; }
-  void set_stage(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Stage::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Flags =
-    ::protozero::proto_utils::FieldMetadata<
-      5,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      MdpSsppChangeFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Flags kFlags() { return {}; }
-  void set_flags(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Flags::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Format =
-    ::protozero::proto_utils::FieldMetadata<
-      6,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      MdpSsppChangeFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Format kFormat() { return {}; }
-  void set_format(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Format::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_ImgW =
-    ::protozero::proto_utils::FieldMetadata<
-      7,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      MdpSsppChangeFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_ImgW kImgW() { return {}; }
-  void set_img_w(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_ImgW::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_ImgH =
-    ::protozero::proto_utils::FieldMetadata<
-      8,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      MdpSsppChangeFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_ImgH kImgH() { return {}; }
-  void set_img_h(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_ImgH::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_SrcX =
-    ::protozero::proto_utils::FieldMetadata<
-      9,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      MdpSsppChangeFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_SrcX kSrcX() { return {}; }
-  void set_src_x(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_SrcX::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_SrcY =
-    ::protozero::proto_utils::FieldMetadata<
-      10,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      MdpSsppChangeFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_SrcY kSrcY() { return {}; }
-  void set_src_y(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_SrcY::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_SrcW =
-    ::protozero::proto_utils::FieldMetadata<
-      11,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      MdpSsppChangeFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_SrcW kSrcW() { return {}; }
-  void set_src_w(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_SrcW::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_SrcH =
-    ::protozero::proto_utils::FieldMetadata<
-      12,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      MdpSsppChangeFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_SrcH kSrcH() { return {}; }
-  void set_src_h(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_SrcH::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_DstX =
-    ::protozero::proto_utils::FieldMetadata<
-      13,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      MdpSsppChangeFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_DstX kDstX() { return {}; }
-  void set_dst_x(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_DstX::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_DstY =
-    ::protozero::proto_utils::FieldMetadata<
-      14,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      MdpSsppChangeFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_DstY kDstY() { return {}; }
-  void set_dst_y(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_DstY::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_DstW =
-    ::protozero::proto_utils::FieldMetadata<
-      15,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      MdpSsppChangeFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_DstW kDstW() { return {}; }
-  void set_dst_w(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_DstW::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_DstH =
-    ::protozero::proto_utils::FieldMetadata<
-      16,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      MdpSsppChangeFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_DstH kDstH() { return {}; }
-  void set_dst_h(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_DstH::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-};
-
-class MdpPerfSetOtFtraceEvent_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/4, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  MdpPerfSetOtFtraceEvent_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit MdpPerfSetOtFtraceEvent_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit MdpPerfSetOtFtraceEvent_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_pnum() const { return at<1>().valid(); }
-  uint32_t pnum() const { return at<1>().as_uint32(); }
-  bool has_xin_id() const { return at<2>().valid(); }
-  uint32_t xin_id() const { return at<2>().as_uint32(); }
-  bool has_rd_lim() const { return at<3>().valid(); }
-  uint32_t rd_lim() const { return at<3>().as_uint32(); }
-  bool has_is_vbif_rt() const { return at<4>().valid(); }
-  uint32_t is_vbif_rt() const { return at<4>().as_uint32(); }
-};
-
-class MdpPerfSetOtFtraceEvent : public ::protozero::Message {
- public:
-  using Decoder = MdpPerfSetOtFtraceEvent_Decoder;
-  enum : int32_t {
-    kPnumFieldNumber = 1,
-    kXinIdFieldNumber = 2,
-    kRdLimFieldNumber = 3,
-    kIsVbifRtFieldNumber = 4,
-  };
-
-  using FieldMetadata_Pnum =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      MdpPerfSetOtFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Pnum kPnum() { return {}; }
-  void set_pnum(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Pnum::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_XinId =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      MdpPerfSetOtFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_XinId kXinId() { return {}; }
-  void set_xin_id(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_XinId::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_RdLim =
-    ::protozero::proto_utils::FieldMetadata<
-      3,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      MdpPerfSetOtFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_RdLim kRdLim() { return {}; }
-  void set_rd_lim(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_RdLim::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_IsVbifRt =
-    ::protozero::proto_utils::FieldMetadata<
-      4,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      MdpPerfSetOtFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_IsVbifRt kIsVbifRt() { return {}; }
-  void set_is_vbif_rt(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_IsVbifRt::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-};
-
-class MdpCommitFtraceEvent_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/4, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  MdpCommitFtraceEvent_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit MdpCommitFtraceEvent_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit MdpCommitFtraceEvent_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_num() const { return at<1>().valid(); }
-  uint32_t num() const { return at<1>().as_uint32(); }
-  bool has_play_cnt() const { return at<2>().valid(); }
-  uint32_t play_cnt() const { return at<2>().as_uint32(); }
-  bool has_clk_rate() const { return at<3>().valid(); }
-  uint32_t clk_rate() const { return at<3>().as_uint32(); }
-  bool has_bandwidth() const { return at<4>().valid(); }
-  uint64_t bandwidth() const { return at<4>().as_uint64(); }
-};
-
-class MdpCommitFtraceEvent : public ::protozero::Message {
- public:
-  using Decoder = MdpCommitFtraceEvent_Decoder;
-  enum : int32_t {
-    kNumFieldNumber = 1,
-    kPlayCntFieldNumber = 2,
-    kClkRateFieldNumber = 3,
-    kBandwidthFieldNumber = 4,
-  };
-
-  using FieldMetadata_Num =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      MdpCommitFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Num kNum() { return {}; }
-  void set_num(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Num::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_PlayCnt =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      MdpCommitFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_PlayCnt kPlayCnt() { return {}; }
-  void set_play_cnt(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_PlayCnt::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_ClkRate =
-    ::protozero::proto_utils::FieldMetadata<
-      3,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      MdpCommitFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_ClkRate kClkRate() { return {}; }
-  void set_clk_rate(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_ClkRate::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Bandwidth =
-    ::protozero::proto_utils::FieldMetadata<
-      4,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      MdpCommitFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Bandwidth kBandwidth() { return {}; }
-  void set_bandwidth(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Bandwidth::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-};
-
-class MdpCmdKickoffFtraceEvent_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/2, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  MdpCmdKickoffFtraceEvent_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit MdpCmdKickoffFtraceEvent_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit MdpCmdKickoffFtraceEvent_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_ctl_num() const { return at<1>().valid(); }
-  uint32_t ctl_num() const { return at<1>().as_uint32(); }
-  bool has_kickoff_cnt() const { return at<2>().valid(); }
-  int32_t kickoff_cnt() const { return at<2>().as_int32(); }
-};
-
-class MdpCmdKickoffFtraceEvent : public ::protozero::Message {
- public:
-  using Decoder = MdpCmdKickoffFtraceEvent_Decoder;
-  enum : int32_t {
-    kCtlNumFieldNumber = 1,
-    kKickoffCntFieldNumber = 2,
-  };
-
-  using FieldMetadata_CtlNum =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      MdpCmdKickoffFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_CtlNum kCtlNum() { return {}; }
-  void set_ctl_num(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_CtlNum::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_KickoffCnt =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt32,
-      int32_t,
-      MdpCmdKickoffFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_KickoffCnt kKickoffCnt() { return {}; }
-  void set_kickoff_cnt(int32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_KickoffCnt::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt32>
-        ::Append(*this, field_id, value);
-  }
-};
-
-} // Namespace.
-} // Namespace.
-} // Namespace.
-#endif  // Include guard.
-// gen_amalgamated begin header: gen/protos/perfetto/trace/ftrace/mm_event.pbzero.h
-// Autogenerated by the ProtoZero compiler plugin. DO NOT EDIT.
-
-#ifndef PERFETTO_PROTOS_PROTOS_PERFETTO_TRACE_FTRACE_MM_EVENT_PROTO_H_
-#define PERFETTO_PROTOS_PROTOS_PERFETTO_TRACE_FTRACE_MM_EVENT_PROTO_H_
-
-#include <stddef.h>
-#include <stdint.h>
-
-// gen_amalgamated expanded: #include "perfetto/protozero/field_writer.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/message.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/packed_repeated_fields.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/proto_decoder.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/proto_utils.h"
-
-namespace perfetto {
-namespace protos {
-namespace pbzero {
-
-
-class MmEventRecordFtraceEvent_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/4, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  MmEventRecordFtraceEvent_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit MmEventRecordFtraceEvent_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit MmEventRecordFtraceEvent_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_avg_lat() const { return at<1>().valid(); }
-  uint32_t avg_lat() const { return at<1>().as_uint32(); }
-  bool has_count() const { return at<2>().valid(); }
-  uint32_t count() const { return at<2>().as_uint32(); }
-  bool has_max_lat() const { return at<3>().valid(); }
-  uint32_t max_lat() const { return at<3>().as_uint32(); }
-  bool has_type() const { return at<4>().valid(); }
-  uint32_t type() const { return at<4>().as_uint32(); }
-};
-
-class MmEventRecordFtraceEvent : public ::protozero::Message {
- public:
-  using Decoder = MmEventRecordFtraceEvent_Decoder;
-  enum : int32_t {
-    kAvgLatFieldNumber = 1,
-    kCountFieldNumber = 2,
-    kMaxLatFieldNumber = 3,
-    kTypeFieldNumber = 4,
-  };
-
-  using FieldMetadata_AvgLat =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      MmEventRecordFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_AvgLat kAvgLat() { return {}; }
-  void set_avg_lat(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_AvgLat::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Count =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      MmEventRecordFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Count kCount() { return {}; }
-  void set_count(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Count::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_MaxLat =
-    ::protozero::proto_utils::FieldMetadata<
-      3,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      MmEventRecordFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_MaxLat kMaxLat() { return {}; }
-  void set_max_lat(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_MaxLat::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Type =
-    ::protozero::proto_utils::FieldMetadata<
-      4,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      MmEventRecordFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Type kType() { return {}; }
-  void set_type(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Type::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-};
-
-} // Namespace.
-} // Namespace.
-} // Namespace.
-#endif  // Include guard.
-// gen_amalgamated begin header: gen/protos/perfetto/trace/ftrace/oom.pbzero.h
-// Autogenerated by the ProtoZero compiler plugin. DO NOT EDIT.
-
-#ifndef PERFETTO_PROTOS_PROTOS_PERFETTO_TRACE_FTRACE_OOM_PROTO_H_
-#define PERFETTO_PROTOS_PROTOS_PERFETTO_TRACE_FTRACE_OOM_PROTO_H_
-
-#include <stddef.h>
-#include <stdint.h>
-
-// gen_amalgamated expanded: #include "perfetto/protozero/field_writer.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/message.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/packed_repeated_fields.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/proto_decoder.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/proto_utils.h"
-
-namespace perfetto {
-namespace protos {
-namespace pbzero {
-
-
-class MarkVictimFtraceEvent_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/1, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  MarkVictimFtraceEvent_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit MarkVictimFtraceEvent_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit MarkVictimFtraceEvent_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_pid() const { return at<1>().valid(); }
-  int32_t pid() const { return at<1>().as_int32(); }
-};
-
-class MarkVictimFtraceEvent : public ::protozero::Message {
- public:
-  using Decoder = MarkVictimFtraceEvent_Decoder;
-  enum : int32_t {
-    kPidFieldNumber = 1,
-  };
-
-  using FieldMetadata_Pid =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt32,
-      int32_t,
-      MarkVictimFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Pid kPid() { return {}; }
-  void set_pid(int32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Pid::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt32>
-        ::Append(*this, field_id, value);
-  }
-};
-
-class OomScoreAdjUpdateFtraceEvent_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/3, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  OomScoreAdjUpdateFtraceEvent_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit OomScoreAdjUpdateFtraceEvent_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit OomScoreAdjUpdateFtraceEvent_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_comm() const { return at<1>().valid(); }
-  ::protozero::ConstChars comm() const { return at<1>().as_string(); }
-  bool has_oom_score_adj() const { return at<2>().valid(); }
-  int32_t oom_score_adj() const { return at<2>().as_int32(); }
-  bool has_pid() const { return at<3>().valid(); }
-  int32_t pid() const { return at<3>().as_int32(); }
-};
-
-class OomScoreAdjUpdateFtraceEvent : public ::protozero::Message {
- public:
-  using Decoder = OomScoreAdjUpdateFtraceEvent_Decoder;
-  enum : int32_t {
-    kCommFieldNumber = 1,
-    kOomScoreAdjFieldNumber = 2,
-    kPidFieldNumber = 3,
-  };
-
-  using FieldMetadata_Comm =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kString,
-      std::string,
-      OomScoreAdjUpdateFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Comm kComm() { return {}; }
-  void set_comm(const char* data, size_t size) {
-    AppendBytes(FieldMetadata_Comm::kFieldId, data, size);
-  }
-  void set_comm(std::string value) {
-    static constexpr uint32_t field_id = FieldMetadata_Comm::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kString>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_OomScoreAdj =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt32,
-      int32_t,
-      OomScoreAdjUpdateFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_OomScoreAdj kOomScoreAdj() { return {}; }
-  void set_oom_score_adj(int32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_OomScoreAdj::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Pid =
-    ::protozero::proto_utils::FieldMetadata<
-      3,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt32,
-      int32_t,
-      OomScoreAdjUpdateFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Pid kPid() { return {}; }
-  void set_pid(int32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Pid::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt32>
-        ::Append(*this, field_id, value);
-  }
-};
-
-} // Namespace.
-} // Namespace.
-} // Namespace.
-#endif  // Include guard.
-// gen_amalgamated begin header: gen/protos/perfetto/trace/ftrace/power.pbzero.h
-// Autogenerated by the ProtoZero compiler plugin. DO NOT EDIT.
-
-#ifndef PERFETTO_PROTOS_PROTOS_PERFETTO_TRACE_FTRACE_POWER_PROTO_H_
-#define PERFETTO_PROTOS_PROTOS_PERFETTO_TRACE_FTRACE_POWER_PROTO_H_
-
-#include <stddef.h>
-#include <stdint.h>
-
-// gen_amalgamated expanded: #include "perfetto/protozero/field_writer.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/message.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/packed_repeated_fields.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/proto_decoder.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/proto_utils.h"
-
-namespace perfetto {
-namespace protos {
-namespace pbzero {
-
-
-class GpuFrequencyFtraceEvent_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/2, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  GpuFrequencyFtraceEvent_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit GpuFrequencyFtraceEvent_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit GpuFrequencyFtraceEvent_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_gpu_id() const { return at<1>().valid(); }
-  uint32_t gpu_id() const { return at<1>().as_uint32(); }
-  bool has_state() const { return at<2>().valid(); }
-  uint32_t state() const { return at<2>().as_uint32(); }
-};
-
-class GpuFrequencyFtraceEvent : public ::protozero::Message {
- public:
-  using Decoder = GpuFrequencyFtraceEvent_Decoder;
-  enum : int32_t {
-    kGpuIdFieldNumber = 1,
-    kStateFieldNumber = 2,
-  };
-
-  using FieldMetadata_GpuId =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      GpuFrequencyFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_GpuId kGpuId() { return {}; }
-  void set_gpu_id(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_GpuId::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_State =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      GpuFrequencyFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_State kState() { return {}; }
-  void set_state(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_State::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-};
-
-class SuspendResumeFtraceEvent_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/3, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  SuspendResumeFtraceEvent_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit SuspendResumeFtraceEvent_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit SuspendResumeFtraceEvent_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_action() const { return at<1>().valid(); }
-  ::protozero::ConstChars action() const { return at<1>().as_string(); }
-  bool has_val() const { return at<2>().valid(); }
-  int32_t val() const { return at<2>().as_int32(); }
-  bool has_start() const { return at<3>().valid(); }
-  uint32_t start() const { return at<3>().as_uint32(); }
-};
-
-class SuspendResumeFtraceEvent : public ::protozero::Message {
- public:
-  using Decoder = SuspendResumeFtraceEvent_Decoder;
-  enum : int32_t {
-    kActionFieldNumber = 1,
-    kValFieldNumber = 2,
-    kStartFieldNumber = 3,
-  };
-
-  using FieldMetadata_Action =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kString,
-      std::string,
-      SuspendResumeFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Action kAction() { return {}; }
-  void set_action(const char* data, size_t size) {
-    AppendBytes(FieldMetadata_Action::kFieldId, data, size);
-  }
-  void set_action(std::string value) {
-    static constexpr uint32_t field_id = FieldMetadata_Action::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kString>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Val =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt32,
-      int32_t,
-      SuspendResumeFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Val kVal() { return {}; }
-  void set_val(int32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Val::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Start =
-    ::protozero::proto_utils::FieldMetadata<
-      3,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      SuspendResumeFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Start kStart() { return {}; }
-  void set_start(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Start::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-};
-
-class ClockSetRateFtraceEvent_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/3, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  ClockSetRateFtraceEvent_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit ClockSetRateFtraceEvent_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit ClockSetRateFtraceEvent_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_name() const { return at<1>().valid(); }
-  ::protozero::ConstChars name() const { return at<1>().as_string(); }
-  bool has_state() const { return at<2>().valid(); }
-  uint64_t state() const { return at<2>().as_uint64(); }
-  bool has_cpu_id() const { return at<3>().valid(); }
-  uint64_t cpu_id() const { return at<3>().as_uint64(); }
-};
-
-class ClockSetRateFtraceEvent : public ::protozero::Message {
- public:
-  using Decoder = ClockSetRateFtraceEvent_Decoder;
-  enum : int32_t {
-    kNameFieldNumber = 1,
-    kStateFieldNumber = 2,
-    kCpuIdFieldNumber = 3,
-  };
-
-  using FieldMetadata_Name =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kString,
-      std::string,
-      ClockSetRateFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Name kName() { return {}; }
-  void set_name(const char* data, size_t size) {
-    AppendBytes(FieldMetadata_Name::kFieldId, data, size);
-  }
-  void set_name(std::string value) {
-    static constexpr uint32_t field_id = FieldMetadata_Name::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kString>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_State =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      ClockSetRateFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_State kState() { return {}; }
-  void set_state(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_State::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_CpuId =
-    ::protozero::proto_utils::FieldMetadata<
-      3,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      ClockSetRateFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_CpuId kCpuId() { return {}; }
-  void set_cpu_id(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_CpuId::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-};
-
-class ClockDisableFtraceEvent_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/3, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  ClockDisableFtraceEvent_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit ClockDisableFtraceEvent_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit ClockDisableFtraceEvent_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_name() const { return at<1>().valid(); }
-  ::protozero::ConstChars name() const { return at<1>().as_string(); }
-  bool has_state() const { return at<2>().valid(); }
-  uint64_t state() const { return at<2>().as_uint64(); }
-  bool has_cpu_id() const { return at<3>().valid(); }
-  uint64_t cpu_id() const { return at<3>().as_uint64(); }
-};
-
-class ClockDisableFtraceEvent : public ::protozero::Message {
- public:
-  using Decoder = ClockDisableFtraceEvent_Decoder;
-  enum : int32_t {
-    kNameFieldNumber = 1,
-    kStateFieldNumber = 2,
-    kCpuIdFieldNumber = 3,
-  };
-
-  using FieldMetadata_Name =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kString,
-      std::string,
-      ClockDisableFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Name kName() { return {}; }
-  void set_name(const char* data, size_t size) {
-    AppendBytes(FieldMetadata_Name::kFieldId, data, size);
-  }
-  void set_name(std::string value) {
-    static constexpr uint32_t field_id = FieldMetadata_Name::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kString>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_State =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      ClockDisableFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_State kState() { return {}; }
-  void set_state(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_State::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_CpuId =
-    ::protozero::proto_utils::FieldMetadata<
-      3,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      ClockDisableFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_CpuId kCpuId() { return {}; }
-  void set_cpu_id(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_CpuId::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-};
-
-class ClockEnableFtraceEvent_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/3, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  ClockEnableFtraceEvent_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit ClockEnableFtraceEvent_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit ClockEnableFtraceEvent_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_name() const { return at<1>().valid(); }
-  ::protozero::ConstChars name() const { return at<1>().as_string(); }
-  bool has_state() const { return at<2>().valid(); }
-  uint64_t state() const { return at<2>().as_uint64(); }
-  bool has_cpu_id() const { return at<3>().valid(); }
-  uint64_t cpu_id() const { return at<3>().as_uint64(); }
-};
-
-class ClockEnableFtraceEvent : public ::protozero::Message {
- public:
-  using Decoder = ClockEnableFtraceEvent_Decoder;
-  enum : int32_t {
-    kNameFieldNumber = 1,
-    kStateFieldNumber = 2,
-    kCpuIdFieldNumber = 3,
-  };
-
-  using FieldMetadata_Name =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kString,
-      std::string,
-      ClockEnableFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Name kName() { return {}; }
-  void set_name(const char* data, size_t size) {
-    AppendBytes(FieldMetadata_Name::kFieldId, data, size);
-  }
-  void set_name(std::string value) {
-    static constexpr uint32_t field_id = FieldMetadata_Name::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kString>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_State =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      ClockEnableFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_State kState() { return {}; }
-  void set_state(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_State::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_CpuId =
-    ::protozero::proto_utils::FieldMetadata<
-      3,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      ClockEnableFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_CpuId kCpuId() { return {}; }
-  void set_cpu_id(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_CpuId::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-};
-
-class CpuIdleFtraceEvent_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/2, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  CpuIdleFtraceEvent_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit CpuIdleFtraceEvent_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit CpuIdleFtraceEvent_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_state() const { return at<1>().valid(); }
-  uint32_t state() const { return at<1>().as_uint32(); }
-  bool has_cpu_id() const { return at<2>().valid(); }
-  uint32_t cpu_id() const { return at<2>().as_uint32(); }
-};
-
-class CpuIdleFtraceEvent : public ::protozero::Message {
- public:
-  using Decoder = CpuIdleFtraceEvent_Decoder;
-  enum : int32_t {
-    kStateFieldNumber = 1,
-    kCpuIdFieldNumber = 2,
-  };
-
-  using FieldMetadata_State =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      CpuIdleFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_State kState() { return {}; }
-  void set_state(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_State::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_CpuId =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      CpuIdleFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_CpuId kCpuId() { return {}; }
-  void set_cpu_id(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_CpuId::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-};
-
-class CpuFrequencyLimitsFtraceEvent_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/3, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  CpuFrequencyLimitsFtraceEvent_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit CpuFrequencyLimitsFtraceEvent_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit CpuFrequencyLimitsFtraceEvent_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_min_freq() const { return at<1>().valid(); }
-  uint32_t min_freq() const { return at<1>().as_uint32(); }
-  bool has_max_freq() const { return at<2>().valid(); }
-  uint32_t max_freq() const { return at<2>().as_uint32(); }
-  bool has_cpu_id() const { return at<3>().valid(); }
-  uint32_t cpu_id() const { return at<3>().as_uint32(); }
-};
-
-class CpuFrequencyLimitsFtraceEvent : public ::protozero::Message {
- public:
-  using Decoder = CpuFrequencyLimitsFtraceEvent_Decoder;
-  enum : int32_t {
-    kMinFreqFieldNumber = 1,
-    kMaxFreqFieldNumber = 2,
-    kCpuIdFieldNumber = 3,
-  };
-
-  using FieldMetadata_MinFreq =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      CpuFrequencyLimitsFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_MinFreq kMinFreq() { return {}; }
-  void set_min_freq(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_MinFreq::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_MaxFreq =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      CpuFrequencyLimitsFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_MaxFreq kMaxFreq() { return {}; }
-  void set_max_freq(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_MaxFreq::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_CpuId =
-    ::protozero::proto_utils::FieldMetadata<
-      3,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      CpuFrequencyLimitsFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_CpuId kCpuId() { return {}; }
-  void set_cpu_id(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_CpuId::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-};
-
-class CpuFrequencyFtraceEvent_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/2, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  CpuFrequencyFtraceEvent_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit CpuFrequencyFtraceEvent_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit CpuFrequencyFtraceEvent_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_state() const { return at<1>().valid(); }
-  uint32_t state() const { return at<1>().as_uint32(); }
-  bool has_cpu_id() const { return at<2>().valid(); }
-  uint32_t cpu_id() const { return at<2>().as_uint32(); }
-};
-
-class CpuFrequencyFtraceEvent : public ::protozero::Message {
- public:
-  using Decoder = CpuFrequencyFtraceEvent_Decoder;
-  enum : int32_t {
-    kStateFieldNumber = 1,
-    kCpuIdFieldNumber = 2,
-  };
-
-  using FieldMetadata_State =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      CpuFrequencyFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_State kState() { return {}; }
-  void set_state(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_State::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_CpuId =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      CpuFrequencyFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_CpuId kCpuId() { return {}; }
-  void set_cpu_id(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_CpuId::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-};
-
-} // Namespace.
-} // Namespace.
-} // Namespace.
-#endif  // Include guard.
-// gen_amalgamated begin header: gen/protos/perfetto/trace/ftrace/raw_syscalls.pbzero.h
-// Autogenerated by the ProtoZero compiler plugin. DO NOT EDIT.
-
-#ifndef PERFETTO_PROTOS_PROTOS_PERFETTO_TRACE_FTRACE_RAW_SYSCALLS_PROTO_H_
-#define PERFETTO_PROTOS_PROTOS_PERFETTO_TRACE_FTRACE_RAW_SYSCALLS_PROTO_H_
-
-#include <stddef.h>
-#include <stdint.h>
-
-// gen_amalgamated expanded: #include "perfetto/protozero/field_writer.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/message.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/packed_repeated_fields.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/proto_decoder.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/proto_utils.h"
-
-namespace perfetto {
-namespace protos {
-namespace pbzero {
-
-
-class SysExitFtraceEvent_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/2, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  SysExitFtraceEvent_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit SysExitFtraceEvent_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit SysExitFtraceEvent_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_id() const { return at<1>().valid(); }
-  int64_t id() const { return at<1>().as_int64(); }
-  bool has_ret() const { return at<2>().valid(); }
-  int64_t ret() const { return at<2>().as_int64(); }
-};
-
-class SysExitFtraceEvent : public ::protozero::Message {
- public:
-  using Decoder = SysExitFtraceEvent_Decoder;
-  enum : int32_t {
-    kIdFieldNumber = 1,
-    kRetFieldNumber = 2,
-  };
-
-  using FieldMetadata_Id =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt64,
-      int64_t,
-      SysExitFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Id kId() { return {}; }
-  void set_id(int64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Id::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Ret =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt64,
-      int64_t,
-      SysExitFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Ret kRet() { return {}; }
-  void set_ret(int64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Ret::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt64>
-        ::Append(*this, field_id, value);
-  }
-};
-
-class SysEnterFtraceEvent_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/1, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  SysEnterFtraceEvent_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit SysEnterFtraceEvent_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit SysEnterFtraceEvent_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_id() const { return at<1>().valid(); }
-  int64_t id() const { return at<1>().as_int64(); }
-};
-
-class SysEnterFtraceEvent : public ::protozero::Message {
- public:
-  using Decoder = SysEnterFtraceEvent_Decoder;
-  enum : int32_t {
-    kIdFieldNumber = 1,
-  };
-
-  using FieldMetadata_Id =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt64,
-      int64_t,
-      SysEnterFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Id kId() { return {}; }
-  void set_id(int64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Id::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt64>
-        ::Append(*this, field_id, value);
-  }
-};
-
-} // Namespace.
-} // Namespace.
-} // Namespace.
-#endif  // Include guard.
-// gen_amalgamated begin header: gen/protos/perfetto/trace/ftrace/regulator.pbzero.h
-// Autogenerated by the ProtoZero compiler plugin. DO NOT EDIT.
-
-#ifndef PERFETTO_PROTOS_PROTOS_PERFETTO_TRACE_FTRACE_REGULATOR_PROTO_H_
-#define PERFETTO_PROTOS_PROTOS_PERFETTO_TRACE_FTRACE_REGULATOR_PROTO_H_
-
-#include <stddef.h>
-#include <stdint.h>
-
-// gen_amalgamated expanded: #include "perfetto/protozero/field_writer.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/message.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/packed_repeated_fields.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/proto_decoder.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/proto_utils.h"
-
-namespace perfetto {
-namespace protos {
-namespace pbzero {
-
-
-class RegulatorSetVoltageCompleteFtraceEvent_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/2, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  RegulatorSetVoltageCompleteFtraceEvent_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit RegulatorSetVoltageCompleteFtraceEvent_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit RegulatorSetVoltageCompleteFtraceEvent_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_name() const { return at<1>().valid(); }
-  ::protozero::ConstChars name() const { return at<1>().as_string(); }
-  bool has_val() const { return at<2>().valid(); }
-  uint32_t val() const { return at<2>().as_uint32(); }
-};
-
-class RegulatorSetVoltageCompleteFtraceEvent : public ::protozero::Message {
- public:
-  using Decoder = RegulatorSetVoltageCompleteFtraceEvent_Decoder;
-  enum : int32_t {
-    kNameFieldNumber = 1,
-    kValFieldNumber = 2,
-  };
-
-  using FieldMetadata_Name =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kString,
-      std::string,
-      RegulatorSetVoltageCompleteFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Name kName() { return {}; }
-  void set_name(const char* data, size_t size) {
-    AppendBytes(FieldMetadata_Name::kFieldId, data, size);
-  }
-  void set_name(std::string value) {
-    static constexpr uint32_t field_id = FieldMetadata_Name::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kString>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Val =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      RegulatorSetVoltageCompleteFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Val kVal() { return {}; }
-  void set_val(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Val::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-};
-
-class RegulatorSetVoltageFtraceEvent_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/3, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  RegulatorSetVoltageFtraceEvent_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit RegulatorSetVoltageFtraceEvent_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit RegulatorSetVoltageFtraceEvent_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_name() const { return at<1>().valid(); }
-  ::protozero::ConstChars name() const { return at<1>().as_string(); }
-  bool has_min() const { return at<2>().valid(); }
-  int32_t min() const { return at<2>().as_int32(); }
-  bool has_max() const { return at<3>().valid(); }
-  int32_t max() const { return at<3>().as_int32(); }
-};
-
-class RegulatorSetVoltageFtraceEvent : public ::protozero::Message {
- public:
-  using Decoder = RegulatorSetVoltageFtraceEvent_Decoder;
-  enum : int32_t {
-    kNameFieldNumber = 1,
-    kMinFieldNumber = 2,
-    kMaxFieldNumber = 3,
-  };
-
-  using FieldMetadata_Name =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kString,
-      std::string,
-      RegulatorSetVoltageFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Name kName() { return {}; }
-  void set_name(const char* data, size_t size) {
-    AppendBytes(FieldMetadata_Name::kFieldId, data, size);
-  }
-  void set_name(std::string value) {
-    static constexpr uint32_t field_id = FieldMetadata_Name::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kString>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Min =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt32,
-      int32_t,
-      RegulatorSetVoltageFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Min kMin() { return {}; }
-  void set_min(int32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Min::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Max =
-    ::protozero::proto_utils::FieldMetadata<
-      3,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt32,
-      int32_t,
-      RegulatorSetVoltageFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Max kMax() { return {}; }
-  void set_max(int32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Max::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt32>
-        ::Append(*this, field_id, value);
-  }
-};
-
-class RegulatorEnableDelayFtraceEvent_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/1, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  RegulatorEnableDelayFtraceEvent_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit RegulatorEnableDelayFtraceEvent_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit RegulatorEnableDelayFtraceEvent_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_name() const { return at<1>().valid(); }
-  ::protozero::ConstChars name() const { return at<1>().as_string(); }
-};
-
-class RegulatorEnableDelayFtraceEvent : public ::protozero::Message {
- public:
-  using Decoder = RegulatorEnableDelayFtraceEvent_Decoder;
-  enum : int32_t {
-    kNameFieldNumber = 1,
-  };
-
-  using FieldMetadata_Name =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kString,
-      std::string,
-      RegulatorEnableDelayFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Name kName() { return {}; }
-  void set_name(const char* data, size_t size) {
-    AppendBytes(FieldMetadata_Name::kFieldId, data, size);
-  }
-  void set_name(std::string value) {
-    static constexpr uint32_t field_id = FieldMetadata_Name::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kString>
-        ::Append(*this, field_id, value);
-  }
-};
-
-class RegulatorEnableCompleteFtraceEvent_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/1, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  RegulatorEnableCompleteFtraceEvent_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit RegulatorEnableCompleteFtraceEvent_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit RegulatorEnableCompleteFtraceEvent_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_name() const { return at<1>().valid(); }
-  ::protozero::ConstChars name() const { return at<1>().as_string(); }
-};
-
-class RegulatorEnableCompleteFtraceEvent : public ::protozero::Message {
- public:
-  using Decoder = RegulatorEnableCompleteFtraceEvent_Decoder;
-  enum : int32_t {
-    kNameFieldNumber = 1,
-  };
-
-  using FieldMetadata_Name =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kString,
-      std::string,
-      RegulatorEnableCompleteFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Name kName() { return {}; }
-  void set_name(const char* data, size_t size) {
-    AppendBytes(FieldMetadata_Name::kFieldId, data, size);
-  }
-  void set_name(std::string value) {
-    static constexpr uint32_t field_id = FieldMetadata_Name::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kString>
-        ::Append(*this, field_id, value);
-  }
-};
-
-class RegulatorEnableFtraceEvent_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/1, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  RegulatorEnableFtraceEvent_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit RegulatorEnableFtraceEvent_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit RegulatorEnableFtraceEvent_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_name() const { return at<1>().valid(); }
-  ::protozero::ConstChars name() const { return at<1>().as_string(); }
-};
-
-class RegulatorEnableFtraceEvent : public ::protozero::Message {
- public:
-  using Decoder = RegulatorEnableFtraceEvent_Decoder;
-  enum : int32_t {
-    kNameFieldNumber = 1,
-  };
-
-  using FieldMetadata_Name =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kString,
-      std::string,
-      RegulatorEnableFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Name kName() { return {}; }
-  void set_name(const char* data, size_t size) {
-    AppendBytes(FieldMetadata_Name::kFieldId, data, size);
-  }
-  void set_name(std::string value) {
-    static constexpr uint32_t field_id = FieldMetadata_Name::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kString>
-        ::Append(*this, field_id, value);
-  }
-};
-
-class RegulatorDisableCompleteFtraceEvent_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/1, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  RegulatorDisableCompleteFtraceEvent_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit RegulatorDisableCompleteFtraceEvent_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit RegulatorDisableCompleteFtraceEvent_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_name() const { return at<1>().valid(); }
-  ::protozero::ConstChars name() const { return at<1>().as_string(); }
-};
-
-class RegulatorDisableCompleteFtraceEvent : public ::protozero::Message {
- public:
-  using Decoder = RegulatorDisableCompleteFtraceEvent_Decoder;
-  enum : int32_t {
-    kNameFieldNumber = 1,
-  };
-
-  using FieldMetadata_Name =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kString,
-      std::string,
-      RegulatorDisableCompleteFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Name kName() { return {}; }
-  void set_name(const char* data, size_t size) {
-    AppendBytes(FieldMetadata_Name::kFieldId, data, size);
-  }
-  void set_name(std::string value) {
-    static constexpr uint32_t field_id = FieldMetadata_Name::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kString>
-        ::Append(*this, field_id, value);
-  }
-};
-
-class RegulatorDisableFtraceEvent_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/1, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  RegulatorDisableFtraceEvent_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit RegulatorDisableFtraceEvent_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit RegulatorDisableFtraceEvent_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_name() const { return at<1>().valid(); }
-  ::protozero::ConstChars name() const { return at<1>().as_string(); }
-};
-
-class RegulatorDisableFtraceEvent : public ::protozero::Message {
- public:
-  using Decoder = RegulatorDisableFtraceEvent_Decoder;
-  enum : int32_t {
-    kNameFieldNumber = 1,
-  };
-
-  using FieldMetadata_Name =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kString,
-      std::string,
-      RegulatorDisableFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Name kName() { return {}; }
-  void set_name(const char* data, size_t size) {
-    AppendBytes(FieldMetadata_Name::kFieldId, data, size);
-  }
-  void set_name(std::string value) {
-    static constexpr uint32_t field_id = FieldMetadata_Name::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kString>
-        ::Append(*this, field_id, value);
-  }
-};
-
-} // Namespace.
-} // Namespace.
-} // Namespace.
-#endif  // Include guard.
-// gen_amalgamated begin header: gen/protos/perfetto/trace/ftrace/sched.pbzero.h
-// Autogenerated by the ProtoZero compiler plugin. DO NOT EDIT.
-
-#ifndef PERFETTO_PROTOS_PROTOS_PERFETTO_TRACE_FTRACE_SCHED_PROTO_H_
-#define PERFETTO_PROTOS_PROTOS_PERFETTO_TRACE_FTRACE_SCHED_PROTO_H_
-
-#include <stddef.h>
-#include <stdint.h>
-
-// gen_amalgamated expanded: #include "perfetto/protozero/field_writer.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/message.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/packed_repeated_fields.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/proto_decoder.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/proto_utils.h"
-
-namespace perfetto {
-namespace protos {
-namespace pbzero {
-
-
-class SchedPiSetprioFtraceEvent_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/4, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  SchedPiSetprioFtraceEvent_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit SchedPiSetprioFtraceEvent_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit SchedPiSetprioFtraceEvent_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_comm() const { return at<1>().valid(); }
-  ::protozero::ConstChars comm() const { return at<1>().as_string(); }
-  bool has_newprio() const { return at<2>().valid(); }
-  int32_t newprio() const { return at<2>().as_int32(); }
-  bool has_oldprio() const { return at<3>().valid(); }
-  int32_t oldprio() const { return at<3>().as_int32(); }
-  bool has_pid() const { return at<4>().valid(); }
-  int32_t pid() const { return at<4>().as_int32(); }
-};
-
-class SchedPiSetprioFtraceEvent : public ::protozero::Message {
- public:
-  using Decoder = SchedPiSetprioFtraceEvent_Decoder;
-  enum : int32_t {
-    kCommFieldNumber = 1,
-    kNewprioFieldNumber = 2,
-    kOldprioFieldNumber = 3,
-    kPidFieldNumber = 4,
-  };
-
-  using FieldMetadata_Comm =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kString,
-      std::string,
-      SchedPiSetprioFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Comm kComm() { return {}; }
-  void set_comm(const char* data, size_t size) {
-    AppendBytes(FieldMetadata_Comm::kFieldId, data, size);
-  }
-  void set_comm(std::string value) {
-    static constexpr uint32_t field_id = FieldMetadata_Comm::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kString>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Newprio =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt32,
-      int32_t,
-      SchedPiSetprioFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Newprio kNewprio() { return {}; }
-  void set_newprio(int32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Newprio::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Oldprio =
-    ::protozero::proto_utils::FieldMetadata<
-      3,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt32,
-      int32_t,
-      SchedPiSetprioFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Oldprio kOldprio() { return {}; }
-  void set_oldprio(int32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Oldprio::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Pid =
-    ::protozero::proto_utils::FieldMetadata<
-      4,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt32,
-      int32_t,
-      SchedPiSetprioFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Pid kPid() { return {}; }
-  void set_pid(int32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Pid::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt32>
-        ::Append(*this, field_id, value);
-  }
-};
-
-class SchedProcessWaitFtraceEvent_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/3, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  SchedProcessWaitFtraceEvent_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit SchedProcessWaitFtraceEvent_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit SchedProcessWaitFtraceEvent_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_comm() const { return at<1>().valid(); }
-  ::protozero::ConstChars comm() const { return at<1>().as_string(); }
-  bool has_pid() const { return at<2>().valid(); }
-  int32_t pid() const { return at<2>().as_int32(); }
-  bool has_prio() const { return at<3>().valid(); }
-  int32_t prio() const { return at<3>().as_int32(); }
-};
-
-class SchedProcessWaitFtraceEvent : public ::protozero::Message {
- public:
-  using Decoder = SchedProcessWaitFtraceEvent_Decoder;
-  enum : int32_t {
-    kCommFieldNumber = 1,
-    kPidFieldNumber = 2,
-    kPrioFieldNumber = 3,
-  };
-
-  using FieldMetadata_Comm =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kString,
-      std::string,
-      SchedProcessWaitFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Comm kComm() { return {}; }
-  void set_comm(const char* data, size_t size) {
-    AppendBytes(FieldMetadata_Comm::kFieldId, data, size);
-  }
-  void set_comm(std::string value) {
-    static constexpr uint32_t field_id = FieldMetadata_Comm::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kString>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Pid =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt32,
-      int32_t,
-      SchedProcessWaitFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Pid kPid() { return {}; }
-  void set_pid(int32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Pid::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Prio =
-    ::protozero::proto_utils::FieldMetadata<
-      3,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt32,
-      int32_t,
-      SchedProcessWaitFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Prio kPrio() { return {}; }
-  void set_prio(int32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Prio::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt32>
-        ::Append(*this, field_id, value);
-  }
-};
-
-class SchedProcessHangFtraceEvent_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/2, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  SchedProcessHangFtraceEvent_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit SchedProcessHangFtraceEvent_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit SchedProcessHangFtraceEvent_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_comm() const { return at<1>().valid(); }
-  ::protozero::ConstChars comm() const { return at<1>().as_string(); }
-  bool has_pid() const { return at<2>().valid(); }
-  int32_t pid() const { return at<2>().as_int32(); }
-};
-
-class SchedProcessHangFtraceEvent : public ::protozero::Message {
- public:
-  using Decoder = SchedProcessHangFtraceEvent_Decoder;
-  enum : int32_t {
-    kCommFieldNumber = 1,
-    kPidFieldNumber = 2,
-  };
-
-  using FieldMetadata_Comm =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kString,
-      std::string,
-      SchedProcessHangFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Comm kComm() { return {}; }
-  void set_comm(const char* data, size_t size) {
-    AppendBytes(FieldMetadata_Comm::kFieldId, data, size);
-  }
-  void set_comm(std::string value) {
-    static constexpr uint32_t field_id = FieldMetadata_Comm::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kString>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Pid =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt32,
-      int32_t,
-      SchedProcessHangFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Pid kPid() { return {}; }
-  void set_pid(int32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Pid::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt32>
-        ::Append(*this, field_id, value);
-  }
-};
-
-class SchedProcessFreeFtraceEvent_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/3, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  SchedProcessFreeFtraceEvent_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit SchedProcessFreeFtraceEvent_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit SchedProcessFreeFtraceEvent_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_comm() const { return at<1>().valid(); }
-  ::protozero::ConstChars comm() const { return at<1>().as_string(); }
-  bool has_pid() const { return at<2>().valid(); }
-  int32_t pid() const { return at<2>().as_int32(); }
-  bool has_prio() const { return at<3>().valid(); }
-  int32_t prio() const { return at<3>().as_int32(); }
-};
-
-class SchedProcessFreeFtraceEvent : public ::protozero::Message {
- public:
-  using Decoder = SchedProcessFreeFtraceEvent_Decoder;
-  enum : int32_t {
-    kCommFieldNumber = 1,
-    kPidFieldNumber = 2,
-    kPrioFieldNumber = 3,
-  };
-
-  using FieldMetadata_Comm =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kString,
-      std::string,
-      SchedProcessFreeFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Comm kComm() { return {}; }
-  void set_comm(const char* data, size_t size) {
-    AppendBytes(FieldMetadata_Comm::kFieldId, data, size);
-  }
-  void set_comm(std::string value) {
-    static constexpr uint32_t field_id = FieldMetadata_Comm::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kString>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Pid =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt32,
-      int32_t,
-      SchedProcessFreeFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Pid kPid() { return {}; }
-  void set_pid(int32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Pid::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Prio =
-    ::protozero::proto_utils::FieldMetadata<
-      3,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt32,
-      int32_t,
-      SchedProcessFreeFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Prio kPrio() { return {}; }
-  void set_prio(int32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Prio::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt32>
-        ::Append(*this, field_id, value);
-  }
-};
-
-class SchedProcessForkFtraceEvent_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/4, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  SchedProcessForkFtraceEvent_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit SchedProcessForkFtraceEvent_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit SchedProcessForkFtraceEvent_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_parent_comm() const { return at<1>().valid(); }
-  ::protozero::ConstChars parent_comm() const { return at<1>().as_string(); }
-  bool has_parent_pid() const { return at<2>().valid(); }
-  int32_t parent_pid() const { return at<2>().as_int32(); }
-  bool has_child_comm() const { return at<3>().valid(); }
-  ::protozero::ConstChars child_comm() const { return at<3>().as_string(); }
-  bool has_child_pid() const { return at<4>().valid(); }
-  int32_t child_pid() const { return at<4>().as_int32(); }
-};
-
-class SchedProcessForkFtraceEvent : public ::protozero::Message {
- public:
-  using Decoder = SchedProcessForkFtraceEvent_Decoder;
-  enum : int32_t {
-    kParentCommFieldNumber = 1,
-    kParentPidFieldNumber = 2,
-    kChildCommFieldNumber = 3,
-    kChildPidFieldNumber = 4,
-  };
-
-  using FieldMetadata_ParentComm =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kString,
-      std::string,
-      SchedProcessForkFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_ParentComm kParentComm() { return {}; }
-  void set_parent_comm(const char* data, size_t size) {
-    AppendBytes(FieldMetadata_ParentComm::kFieldId, data, size);
-  }
-  void set_parent_comm(std::string value) {
-    static constexpr uint32_t field_id = FieldMetadata_ParentComm::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kString>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_ParentPid =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt32,
-      int32_t,
-      SchedProcessForkFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_ParentPid kParentPid() { return {}; }
-  void set_parent_pid(int32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_ParentPid::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_ChildComm =
-    ::protozero::proto_utils::FieldMetadata<
-      3,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kString,
-      std::string,
-      SchedProcessForkFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_ChildComm kChildComm() { return {}; }
-  void set_child_comm(const char* data, size_t size) {
-    AppendBytes(FieldMetadata_ChildComm::kFieldId, data, size);
-  }
-  void set_child_comm(std::string value) {
-    static constexpr uint32_t field_id = FieldMetadata_ChildComm::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kString>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_ChildPid =
-    ::protozero::proto_utils::FieldMetadata<
-      4,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt32,
-      int32_t,
-      SchedProcessForkFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_ChildPid kChildPid() { return {}; }
-  void set_child_pid(int32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_ChildPid::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt32>
-        ::Append(*this, field_id, value);
-  }
-};
-
-class SchedProcessExitFtraceEvent_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/4, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  SchedProcessExitFtraceEvent_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit SchedProcessExitFtraceEvent_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit SchedProcessExitFtraceEvent_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_comm() const { return at<1>().valid(); }
-  ::protozero::ConstChars comm() const { return at<1>().as_string(); }
-  bool has_pid() const { return at<2>().valid(); }
-  int32_t pid() const { return at<2>().as_int32(); }
-  bool has_tgid() const { return at<3>().valid(); }
-  int32_t tgid() const { return at<3>().as_int32(); }
-  bool has_prio() const { return at<4>().valid(); }
-  int32_t prio() const { return at<4>().as_int32(); }
-};
-
-class SchedProcessExitFtraceEvent : public ::protozero::Message {
- public:
-  using Decoder = SchedProcessExitFtraceEvent_Decoder;
-  enum : int32_t {
-    kCommFieldNumber = 1,
-    kPidFieldNumber = 2,
-    kTgidFieldNumber = 3,
-    kPrioFieldNumber = 4,
-  };
-
-  using FieldMetadata_Comm =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kString,
-      std::string,
-      SchedProcessExitFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Comm kComm() { return {}; }
-  void set_comm(const char* data, size_t size) {
-    AppendBytes(FieldMetadata_Comm::kFieldId, data, size);
-  }
-  void set_comm(std::string value) {
-    static constexpr uint32_t field_id = FieldMetadata_Comm::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kString>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Pid =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt32,
-      int32_t,
-      SchedProcessExitFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Pid kPid() { return {}; }
-  void set_pid(int32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Pid::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Tgid =
-    ::protozero::proto_utils::FieldMetadata<
-      3,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt32,
-      int32_t,
-      SchedProcessExitFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Tgid kTgid() { return {}; }
-  void set_tgid(int32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Tgid::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Prio =
-    ::protozero::proto_utils::FieldMetadata<
-      4,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt32,
-      int32_t,
-      SchedProcessExitFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Prio kPrio() { return {}; }
-  void set_prio(int32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Prio::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt32>
-        ::Append(*this, field_id, value);
-  }
-};
-
-class SchedProcessExecFtraceEvent_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/3, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  SchedProcessExecFtraceEvent_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit SchedProcessExecFtraceEvent_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit SchedProcessExecFtraceEvent_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_filename() const { return at<1>().valid(); }
-  ::protozero::ConstChars filename() const { return at<1>().as_string(); }
-  bool has_pid() const { return at<2>().valid(); }
-  int32_t pid() const { return at<2>().as_int32(); }
-  bool has_old_pid() const { return at<3>().valid(); }
-  int32_t old_pid() const { return at<3>().as_int32(); }
-};
-
-class SchedProcessExecFtraceEvent : public ::protozero::Message {
- public:
-  using Decoder = SchedProcessExecFtraceEvent_Decoder;
-  enum : int32_t {
-    kFilenameFieldNumber = 1,
-    kPidFieldNumber = 2,
-    kOldPidFieldNumber = 3,
-  };
-
-  using FieldMetadata_Filename =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kString,
-      std::string,
-      SchedProcessExecFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Filename kFilename() { return {}; }
-  void set_filename(const char* data, size_t size) {
-    AppendBytes(FieldMetadata_Filename::kFieldId, data, size);
-  }
-  void set_filename(std::string value) {
-    static constexpr uint32_t field_id = FieldMetadata_Filename::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kString>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Pid =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt32,
-      int32_t,
-      SchedProcessExecFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Pid kPid() { return {}; }
-  void set_pid(int32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Pid::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_OldPid =
-    ::protozero::proto_utils::FieldMetadata<
-      3,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt32,
-      int32_t,
-      SchedProcessExecFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_OldPid kOldPid() { return {}; }
-  void set_old_pid(int32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_OldPid::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt32>
-        ::Append(*this, field_id, value);
-  }
-};
-
-class SchedWakeupNewFtraceEvent_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/5, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  SchedWakeupNewFtraceEvent_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit SchedWakeupNewFtraceEvent_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit SchedWakeupNewFtraceEvent_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_comm() const { return at<1>().valid(); }
-  ::protozero::ConstChars comm() const { return at<1>().as_string(); }
-  bool has_pid() const { return at<2>().valid(); }
-  int32_t pid() const { return at<2>().as_int32(); }
-  bool has_prio() const { return at<3>().valid(); }
-  int32_t prio() const { return at<3>().as_int32(); }
-  bool has_success() const { return at<4>().valid(); }
-  int32_t success() const { return at<4>().as_int32(); }
-  bool has_target_cpu() const { return at<5>().valid(); }
-  int32_t target_cpu() const { return at<5>().as_int32(); }
-};
-
-class SchedWakeupNewFtraceEvent : public ::protozero::Message {
- public:
-  using Decoder = SchedWakeupNewFtraceEvent_Decoder;
-  enum : int32_t {
-    kCommFieldNumber = 1,
-    kPidFieldNumber = 2,
-    kPrioFieldNumber = 3,
-    kSuccessFieldNumber = 4,
-    kTargetCpuFieldNumber = 5,
-  };
-
-  using FieldMetadata_Comm =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kString,
-      std::string,
-      SchedWakeupNewFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Comm kComm() { return {}; }
-  void set_comm(const char* data, size_t size) {
-    AppendBytes(FieldMetadata_Comm::kFieldId, data, size);
-  }
-  void set_comm(std::string value) {
-    static constexpr uint32_t field_id = FieldMetadata_Comm::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kString>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Pid =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt32,
-      int32_t,
-      SchedWakeupNewFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Pid kPid() { return {}; }
-  void set_pid(int32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Pid::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Prio =
-    ::protozero::proto_utils::FieldMetadata<
-      3,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt32,
-      int32_t,
-      SchedWakeupNewFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Prio kPrio() { return {}; }
-  void set_prio(int32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Prio::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Success =
-    ::protozero::proto_utils::FieldMetadata<
-      4,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt32,
-      int32_t,
-      SchedWakeupNewFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Success kSuccess() { return {}; }
-  void set_success(int32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Success::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_TargetCpu =
-    ::protozero::proto_utils::FieldMetadata<
-      5,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt32,
-      int32_t,
-      SchedWakeupNewFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_TargetCpu kTargetCpu() { return {}; }
-  void set_target_cpu(int32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_TargetCpu::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt32>
-        ::Append(*this, field_id, value);
-  }
-};
-
-class SchedWakingFtraceEvent_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/5, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  SchedWakingFtraceEvent_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit SchedWakingFtraceEvent_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit SchedWakingFtraceEvent_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_comm() const { return at<1>().valid(); }
-  ::protozero::ConstChars comm() const { return at<1>().as_string(); }
-  bool has_pid() const { return at<2>().valid(); }
-  int32_t pid() const { return at<2>().as_int32(); }
-  bool has_prio() const { return at<3>().valid(); }
-  int32_t prio() const { return at<3>().as_int32(); }
-  bool has_success() const { return at<4>().valid(); }
-  int32_t success() const { return at<4>().as_int32(); }
-  bool has_target_cpu() const { return at<5>().valid(); }
-  int32_t target_cpu() const { return at<5>().as_int32(); }
-};
-
-class SchedWakingFtraceEvent : public ::protozero::Message {
- public:
-  using Decoder = SchedWakingFtraceEvent_Decoder;
-  enum : int32_t {
-    kCommFieldNumber = 1,
-    kPidFieldNumber = 2,
-    kPrioFieldNumber = 3,
-    kSuccessFieldNumber = 4,
-    kTargetCpuFieldNumber = 5,
-  };
-
-  using FieldMetadata_Comm =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kString,
-      std::string,
-      SchedWakingFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Comm kComm() { return {}; }
-  void set_comm(const char* data, size_t size) {
-    AppendBytes(FieldMetadata_Comm::kFieldId, data, size);
-  }
-  void set_comm(std::string value) {
-    static constexpr uint32_t field_id = FieldMetadata_Comm::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kString>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Pid =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt32,
-      int32_t,
-      SchedWakingFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Pid kPid() { return {}; }
-  void set_pid(int32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Pid::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Prio =
-    ::protozero::proto_utils::FieldMetadata<
-      3,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt32,
-      int32_t,
-      SchedWakingFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Prio kPrio() { return {}; }
-  void set_prio(int32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Prio::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Success =
-    ::protozero::proto_utils::FieldMetadata<
-      4,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt32,
-      int32_t,
-      SchedWakingFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Success kSuccess() { return {}; }
-  void set_success(int32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Success::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_TargetCpu =
-    ::protozero::proto_utils::FieldMetadata<
-      5,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt32,
-      int32_t,
-      SchedWakingFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_TargetCpu kTargetCpu() { return {}; }
-  void set_target_cpu(int32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_TargetCpu::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt32>
-        ::Append(*this, field_id, value);
-  }
-};
-
-class SchedCpuHotplugFtraceEvent_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/3, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  SchedCpuHotplugFtraceEvent_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit SchedCpuHotplugFtraceEvent_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit SchedCpuHotplugFtraceEvent_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_affected_cpu() const { return at<1>().valid(); }
-  int32_t affected_cpu() const { return at<1>().as_int32(); }
-  bool has_error() const { return at<2>().valid(); }
-  int32_t error() const { return at<2>().as_int32(); }
-  bool has_status() const { return at<3>().valid(); }
-  int32_t status() const { return at<3>().as_int32(); }
-};
-
-class SchedCpuHotplugFtraceEvent : public ::protozero::Message {
- public:
-  using Decoder = SchedCpuHotplugFtraceEvent_Decoder;
-  enum : int32_t {
-    kAffectedCpuFieldNumber = 1,
-    kErrorFieldNumber = 2,
-    kStatusFieldNumber = 3,
-  };
-
-  using FieldMetadata_AffectedCpu =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt32,
-      int32_t,
-      SchedCpuHotplugFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_AffectedCpu kAffectedCpu() { return {}; }
-  void set_affected_cpu(int32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_AffectedCpu::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Error =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt32,
-      int32_t,
-      SchedCpuHotplugFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Error kError() { return {}; }
-  void set_error(int32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Error::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Status =
-    ::protozero::proto_utils::FieldMetadata<
-      3,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt32,
-      int32_t,
-      SchedCpuHotplugFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Status kStatus() { return {}; }
-  void set_status(int32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Status::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt32>
-        ::Append(*this, field_id, value);
-  }
-};
-
-class SchedBlockedReasonFtraceEvent_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/3, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  SchedBlockedReasonFtraceEvent_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit SchedBlockedReasonFtraceEvent_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit SchedBlockedReasonFtraceEvent_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_pid() const { return at<1>().valid(); }
-  int32_t pid() const { return at<1>().as_int32(); }
-  bool has_caller() const { return at<2>().valid(); }
-  uint64_t caller() const { return at<2>().as_uint64(); }
-  bool has_io_wait() const { return at<3>().valid(); }
-  uint32_t io_wait() const { return at<3>().as_uint32(); }
-};
-
-class SchedBlockedReasonFtraceEvent : public ::protozero::Message {
- public:
-  using Decoder = SchedBlockedReasonFtraceEvent_Decoder;
-  enum : int32_t {
-    kPidFieldNumber = 1,
-    kCallerFieldNumber = 2,
-    kIoWaitFieldNumber = 3,
-  };
-
-  using FieldMetadata_Pid =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt32,
-      int32_t,
-      SchedBlockedReasonFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Pid kPid() { return {}; }
-  void set_pid(int32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Pid::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Caller =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      SchedBlockedReasonFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Caller kCaller() { return {}; }
-  void set_caller(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Caller::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_IoWait =
-    ::protozero::proto_utils::FieldMetadata<
-      3,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      SchedBlockedReasonFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_IoWait kIoWait() { return {}; }
-  void set_io_wait(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_IoWait::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-};
-
-class SchedWakeupFtraceEvent_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/5, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  SchedWakeupFtraceEvent_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit SchedWakeupFtraceEvent_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit SchedWakeupFtraceEvent_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_comm() const { return at<1>().valid(); }
-  ::protozero::ConstChars comm() const { return at<1>().as_string(); }
-  bool has_pid() const { return at<2>().valid(); }
-  int32_t pid() const { return at<2>().as_int32(); }
-  bool has_prio() const { return at<3>().valid(); }
-  int32_t prio() const { return at<3>().as_int32(); }
-  bool has_success() const { return at<4>().valid(); }
-  int32_t success() const { return at<4>().as_int32(); }
-  bool has_target_cpu() const { return at<5>().valid(); }
-  int32_t target_cpu() const { return at<5>().as_int32(); }
-};
-
-class SchedWakeupFtraceEvent : public ::protozero::Message {
- public:
-  using Decoder = SchedWakeupFtraceEvent_Decoder;
-  enum : int32_t {
-    kCommFieldNumber = 1,
-    kPidFieldNumber = 2,
-    kPrioFieldNumber = 3,
-    kSuccessFieldNumber = 4,
-    kTargetCpuFieldNumber = 5,
-  };
-
-  using FieldMetadata_Comm =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kString,
-      std::string,
-      SchedWakeupFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Comm kComm() { return {}; }
-  void set_comm(const char* data, size_t size) {
-    AppendBytes(FieldMetadata_Comm::kFieldId, data, size);
-  }
-  void set_comm(std::string value) {
-    static constexpr uint32_t field_id = FieldMetadata_Comm::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kString>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Pid =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt32,
-      int32_t,
-      SchedWakeupFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Pid kPid() { return {}; }
-  void set_pid(int32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Pid::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Prio =
-    ::protozero::proto_utils::FieldMetadata<
-      3,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt32,
-      int32_t,
-      SchedWakeupFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Prio kPrio() { return {}; }
-  void set_prio(int32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Prio::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Success =
-    ::protozero::proto_utils::FieldMetadata<
-      4,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt32,
-      int32_t,
-      SchedWakeupFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Success kSuccess() { return {}; }
-  void set_success(int32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Success::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_TargetCpu =
-    ::protozero::proto_utils::FieldMetadata<
-      5,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt32,
-      int32_t,
-      SchedWakeupFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_TargetCpu kTargetCpu() { return {}; }
-  void set_target_cpu(int32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_TargetCpu::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt32>
-        ::Append(*this, field_id, value);
-  }
-};
-
-class SchedSwitchFtraceEvent_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/7, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  SchedSwitchFtraceEvent_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit SchedSwitchFtraceEvent_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit SchedSwitchFtraceEvent_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_prev_comm() const { return at<1>().valid(); }
-  ::protozero::ConstChars prev_comm() const { return at<1>().as_string(); }
-  bool has_prev_pid() const { return at<2>().valid(); }
-  int32_t prev_pid() const { return at<2>().as_int32(); }
-  bool has_prev_prio() const { return at<3>().valid(); }
-  int32_t prev_prio() const { return at<3>().as_int32(); }
-  bool has_prev_state() const { return at<4>().valid(); }
-  int64_t prev_state() const { return at<4>().as_int64(); }
-  bool has_next_comm() const { return at<5>().valid(); }
-  ::protozero::ConstChars next_comm() const { return at<5>().as_string(); }
-  bool has_next_pid() const { return at<6>().valid(); }
-  int32_t next_pid() const { return at<6>().as_int32(); }
-  bool has_next_prio() const { return at<7>().valid(); }
-  int32_t next_prio() const { return at<7>().as_int32(); }
-};
-
-class SchedSwitchFtraceEvent : public ::protozero::Message {
- public:
-  using Decoder = SchedSwitchFtraceEvent_Decoder;
-  enum : int32_t {
-    kPrevCommFieldNumber = 1,
-    kPrevPidFieldNumber = 2,
-    kPrevPrioFieldNumber = 3,
-    kPrevStateFieldNumber = 4,
-    kNextCommFieldNumber = 5,
-    kNextPidFieldNumber = 6,
-    kNextPrioFieldNumber = 7,
-  };
-
-  using FieldMetadata_PrevComm =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kString,
-      std::string,
-      SchedSwitchFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_PrevComm kPrevComm() { return {}; }
-  void set_prev_comm(const char* data, size_t size) {
-    AppendBytes(FieldMetadata_PrevComm::kFieldId, data, size);
-  }
-  void set_prev_comm(std::string value) {
-    static constexpr uint32_t field_id = FieldMetadata_PrevComm::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kString>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_PrevPid =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt32,
-      int32_t,
-      SchedSwitchFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_PrevPid kPrevPid() { return {}; }
-  void set_prev_pid(int32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_PrevPid::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_PrevPrio =
-    ::protozero::proto_utils::FieldMetadata<
-      3,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt32,
-      int32_t,
-      SchedSwitchFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_PrevPrio kPrevPrio() { return {}; }
-  void set_prev_prio(int32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_PrevPrio::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_PrevState =
-    ::protozero::proto_utils::FieldMetadata<
-      4,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt64,
-      int64_t,
-      SchedSwitchFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_PrevState kPrevState() { return {}; }
-  void set_prev_state(int64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_PrevState::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_NextComm =
-    ::protozero::proto_utils::FieldMetadata<
-      5,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kString,
-      std::string,
-      SchedSwitchFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_NextComm kNextComm() { return {}; }
-  void set_next_comm(const char* data, size_t size) {
-    AppendBytes(FieldMetadata_NextComm::kFieldId, data, size);
-  }
-  void set_next_comm(std::string value) {
-    static constexpr uint32_t field_id = FieldMetadata_NextComm::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kString>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_NextPid =
-    ::protozero::proto_utils::FieldMetadata<
-      6,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt32,
-      int32_t,
-      SchedSwitchFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_NextPid kNextPid() { return {}; }
-  void set_next_pid(int32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_NextPid::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_NextPrio =
-    ::protozero::proto_utils::FieldMetadata<
-      7,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt32,
-      int32_t,
-      SchedSwitchFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_NextPrio kNextPrio() { return {}; }
-  void set_next_prio(int32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_NextPrio::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt32>
-        ::Append(*this, field_id, value);
-  }
-};
-
-} // Namespace.
-} // Namespace.
-} // Namespace.
-#endif  // Include guard.
-// gen_amalgamated begin header: gen/protos/perfetto/trace/ftrace/scm.pbzero.h
-// Autogenerated by the ProtoZero compiler plugin. DO NOT EDIT.
-
-#ifndef PERFETTO_PROTOS_PROTOS_PERFETTO_TRACE_FTRACE_SCM_PROTO_H_
-#define PERFETTO_PROTOS_PROTOS_PERFETTO_TRACE_FTRACE_SCM_PROTO_H_
-
-#include <stddef.h>
-#include <stdint.h>
-
-// gen_amalgamated expanded: #include "perfetto/protozero/field_writer.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/message.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/packed_repeated_fields.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/proto_decoder.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/proto_utils.h"
-
-namespace perfetto {
-namespace protos {
-namespace pbzero {
-
-
-class ScmCallEndFtraceEvent_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/0, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  ScmCallEndFtraceEvent_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit ScmCallEndFtraceEvent_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit ScmCallEndFtraceEvent_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-};
-
-class ScmCallEndFtraceEvent : public ::protozero::Message {
- public:
-  using Decoder = ScmCallEndFtraceEvent_Decoder;
-};
-
-class ScmCallStartFtraceEvent_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/3, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  ScmCallStartFtraceEvent_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit ScmCallStartFtraceEvent_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit ScmCallStartFtraceEvent_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_arginfo() const { return at<1>().valid(); }
-  uint32_t arginfo() const { return at<1>().as_uint32(); }
-  bool has_x0() const { return at<2>().valid(); }
-  uint64_t x0() const { return at<2>().as_uint64(); }
-  bool has_x5() const { return at<3>().valid(); }
-  uint64_t x5() const { return at<3>().as_uint64(); }
-};
-
-class ScmCallStartFtraceEvent : public ::protozero::Message {
- public:
-  using Decoder = ScmCallStartFtraceEvent_Decoder;
-  enum : int32_t {
-    kArginfoFieldNumber = 1,
-    kX0FieldNumber = 2,
-    kX5FieldNumber = 3,
-  };
-
-  using FieldMetadata_Arginfo =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      ScmCallStartFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Arginfo kArginfo() { return {}; }
-  void set_arginfo(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Arginfo::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_X0 =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      ScmCallStartFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_X0 kX0() { return {}; }
-  void set_x0(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_X0::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_X5 =
-    ::protozero::proto_utils::FieldMetadata<
-      3,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      ScmCallStartFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_X5 kX5() { return {}; }
-  void set_x5(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_X5::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-};
-
-} // Namespace.
-} // Namespace.
-} // Namespace.
-#endif  // Include guard.
-// gen_amalgamated begin header: gen/protos/perfetto/trace/ftrace/sde.pbzero.h
-// Autogenerated by the ProtoZero compiler plugin. DO NOT EDIT.
-
-#ifndef PERFETTO_PROTOS_PROTOS_PERFETTO_TRACE_FTRACE_SDE_PROTO_H_
-#define PERFETTO_PROTOS_PROTOS_PERFETTO_TRACE_FTRACE_SDE_PROTO_H_
-
-#include <stddef.h>
-#include <stdint.h>
-
-// gen_amalgamated expanded: #include "perfetto/protozero/field_writer.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/message.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/packed_repeated_fields.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/proto_decoder.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/proto_utils.h"
-
-namespace perfetto {
-namespace protos {
-namespace pbzero {
-
-
-class SdeSdePerfUpdateBusFtraceEvent_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/4, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  SdeSdePerfUpdateBusFtraceEvent_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit SdeSdePerfUpdateBusFtraceEvent_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit SdeSdePerfUpdateBusFtraceEvent_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_ab_quota() const { return at<1>().valid(); }
-  uint64_t ab_quota() const { return at<1>().as_uint64(); }
-  bool has_bus_id() const { return at<2>().valid(); }
-  uint32_t bus_id() const { return at<2>().as_uint32(); }
-  bool has_client() const { return at<3>().valid(); }
-  int32_t client() const { return at<3>().as_int32(); }
-  bool has_ib_quota() const { return at<4>().valid(); }
-  uint64_t ib_quota() const { return at<4>().as_uint64(); }
-};
-
-class SdeSdePerfUpdateBusFtraceEvent : public ::protozero::Message {
- public:
-  using Decoder = SdeSdePerfUpdateBusFtraceEvent_Decoder;
-  enum : int32_t {
-    kAbQuotaFieldNumber = 1,
-    kBusIdFieldNumber = 2,
-    kClientFieldNumber = 3,
-    kIbQuotaFieldNumber = 4,
-  };
-
-  using FieldMetadata_AbQuota =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      SdeSdePerfUpdateBusFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_AbQuota kAbQuota() { return {}; }
-  void set_ab_quota(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_AbQuota::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_BusId =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      SdeSdePerfUpdateBusFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_BusId kBusId() { return {}; }
-  void set_bus_id(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_BusId::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Client =
-    ::protozero::proto_utils::FieldMetadata<
-      3,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt32,
-      int32_t,
-      SdeSdePerfUpdateBusFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Client kClient() { return {}; }
-  void set_client(int32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Client::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_IbQuota =
-    ::protozero::proto_utils::FieldMetadata<
-      4,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      SdeSdePerfUpdateBusFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_IbQuota kIbQuota() { return {}; }
-  void set_ib_quota(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_IbQuota::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-};
-
-class SdeSdePerfSetQosLutsFtraceEvent_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/6, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  SdeSdePerfSetQosLutsFtraceEvent_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit SdeSdePerfSetQosLutsFtraceEvent_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit SdeSdePerfSetQosLutsFtraceEvent_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_fl() const { return at<1>().valid(); }
-  uint32_t fl() const { return at<1>().as_uint32(); }
-  bool has_fmt() const { return at<2>().valid(); }
-  uint32_t fmt() const { return at<2>().as_uint32(); }
-  bool has_lut() const { return at<3>().valid(); }
-  uint64_t lut() const { return at<3>().as_uint64(); }
-  bool has_lut_usage() const { return at<4>().valid(); }
-  uint32_t lut_usage() const { return at<4>().as_uint32(); }
-  bool has_pnum() const { return at<5>().valid(); }
-  uint32_t pnum() const { return at<5>().as_uint32(); }
-  bool has_rt() const { return at<6>().valid(); }
-  uint32_t rt() const { return at<6>().as_uint32(); }
-};
-
-class SdeSdePerfSetQosLutsFtraceEvent : public ::protozero::Message {
- public:
-  using Decoder = SdeSdePerfSetQosLutsFtraceEvent_Decoder;
-  enum : int32_t {
-    kFlFieldNumber = 1,
-    kFmtFieldNumber = 2,
-    kLutFieldNumber = 3,
-    kLutUsageFieldNumber = 4,
-    kPnumFieldNumber = 5,
-    kRtFieldNumber = 6,
-  };
-
-  using FieldMetadata_Fl =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      SdeSdePerfSetQosLutsFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Fl kFl() { return {}; }
-  void set_fl(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Fl::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Fmt =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      SdeSdePerfSetQosLutsFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Fmt kFmt() { return {}; }
-  void set_fmt(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Fmt::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Lut =
-    ::protozero::proto_utils::FieldMetadata<
-      3,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      SdeSdePerfSetQosLutsFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Lut kLut() { return {}; }
-  void set_lut(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Lut::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_LutUsage =
-    ::protozero::proto_utils::FieldMetadata<
-      4,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      SdeSdePerfSetQosLutsFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_LutUsage kLutUsage() { return {}; }
-  void set_lut_usage(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_LutUsage::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Pnum =
-    ::protozero::proto_utils::FieldMetadata<
-      5,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      SdeSdePerfSetQosLutsFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Pnum kPnum() { return {}; }
-  void set_pnum(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Pnum::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Rt =
-    ::protozero::proto_utils::FieldMetadata<
-      6,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      SdeSdePerfSetQosLutsFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Rt kRt() { return {}; }
-  void set_rt(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Rt::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-};
-
-class SdeSdePerfCrtcUpdateFtraceEvent_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/12, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  SdeSdePerfCrtcUpdateFtraceEvent_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit SdeSdePerfCrtcUpdateFtraceEvent_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit SdeSdePerfCrtcUpdateFtraceEvent_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_bw_ctl_ebi() const { return at<1>().valid(); }
-  uint64_t bw_ctl_ebi() const { return at<1>().as_uint64(); }
-  bool has_bw_ctl_llcc() const { return at<2>().valid(); }
-  uint64_t bw_ctl_llcc() const { return at<2>().as_uint64(); }
-  bool has_bw_ctl_mnoc() const { return at<3>().valid(); }
-  uint64_t bw_ctl_mnoc() const { return at<3>().as_uint64(); }
-  bool has_core_clk_rate() const { return at<4>().valid(); }
-  uint32_t core_clk_rate() const { return at<4>().as_uint32(); }
-  bool has_crtc() const { return at<5>().valid(); }
-  uint32_t crtc() const { return at<5>().as_uint32(); }
-  bool has_params() const { return at<6>().valid(); }
-  int32_t params() const { return at<6>().as_int32(); }
-  bool has_per_pipe_ib_ebi() const { return at<7>().valid(); }
-  uint64_t per_pipe_ib_ebi() const { return at<7>().as_uint64(); }
-  bool has_per_pipe_ib_llcc() const { return at<8>().valid(); }
-  uint64_t per_pipe_ib_llcc() const { return at<8>().as_uint64(); }
-  bool has_per_pipe_ib_mnoc() const { return at<9>().valid(); }
-  uint64_t per_pipe_ib_mnoc() const { return at<9>().as_uint64(); }
-  bool has_stop_req() const { return at<10>().valid(); }
-  uint32_t stop_req() const { return at<10>().as_uint32(); }
-  bool has_update_bus() const { return at<11>().valid(); }
-  uint32_t update_bus() const { return at<11>().as_uint32(); }
-  bool has_update_clk() const { return at<12>().valid(); }
-  uint32_t update_clk() const { return at<12>().as_uint32(); }
-};
-
-class SdeSdePerfCrtcUpdateFtraceEvent : public ::protozero::Message {
- public:
-  using Decoder = SdeSdePerfCrtcUpdateFtraceEvent_Decoder;
-  enum : int32_t {
-    kBwCtlEbiFieldNumber = 1,
-    kBwCtlLlccFieldNumber = 2,
-    kBwCtlMnocFieldNumber = 3,
-    kCoreClkRateFieldNumber = 4,
-    kCrtcFieldNumber = 5,
-    kParamsFieldNumber = 6,
-    kPerPipeIbEbiFieldNumber = 7,
-    kPerPipeIbLlccFieldNumber = 8,
-    kPerPipeIbMnocFieldNumber = 9,
-    kStopReqFieldNumber = 10,
-    kUpdateBusFieldNumber = 11,
-    kUpdateClkFieldNumber = 12,
-  };
-
-  using FieldMetadata_BwCtlEbi =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      SdeSdePerfCrtcUpdateFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_BwCtlEbi kBwCtlEbi() { return {}; }
-  void set_bw_ctl_ebi(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_BwCtlEbi::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_BwCtlLlcc =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      SdeSdePerfCrtcUpdateFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_BwCtlLlcc kBwCtlLlcc() { return {}; }
-  void set_bw_ctl_llcc(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_BwCtlLlcc::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_BwCtlMnoc =
-    ::protozero::proto_utils::FieldMetadata<
-      3,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      SdeSdePerfCrtcUpdateFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_BwCtlMnoc kBwCtlMnoc() { return {}; }
-  void set_bw_ctl_mnoc(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_BwCtlMnoc::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_CoreClkRate =
-    ::protozero::proto_utils::FieldMetadata<
-      4,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      SdeSdePerfCrtcUpdateFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_CoreClkRate kCoreClkRate() { return {}; }
-  void set_core_clk_rate(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_CoreClkRate::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Crtc =
-    ::protozero::proto_utils::FieldMetadata<
-      5,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      SdeSdePerfCrtcUpdateFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Crtc kCrtc() { return {}; }
-  void set_crtc(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Crtc::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Params =
-    ::protozero::proto_utils::FieldMetadata<
-      6,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt32,
-      int32_t,
-      SdeSdePerfCrtcUpdateFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Params kParams() { return {}; }
-  void set_params(int32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Params::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_PerPipeIbEbi =
-    ::protozero::proto_utils::FieldMetadata<
-      7,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      SdeSdePerfCrtcUpdateFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_PerPipeIbEbi kPerPipeIbEbi() { return {}; }
-  void set_per_pipe_ib_ebi(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_PerPipeIbEbi::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_PerPipeIbLlcc =
-    ::protozero::proto_utils::FieldMetadata<
-      8,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      SdeSdePerfCrtcUpdateFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_PerPipeIbLlcc kPerPipeIbLlcc() { return {}; }
-  void set_per_pipe_ib_llcc(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_PerPipeIbLlcc::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_PerPipeIbMnoc =
-    ::protozero::proto_utils::FieldMetadata<
-      9,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      SdeSdePerfCrtcUpdateFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_PerPipeIbMnoc kPerPipeIbMnoc() { return {}; }
-  void set_per_pipe_ib_mnoc(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_PerPipeIbMnoc::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_StopReq =
-    ::protozero::proto_utils::FieldMetadata<
-      10,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      SdeSdePerfCrtcUpdateFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_StopReq kStopReq() { return {}; }
-  void set_stop_req(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_StopReq::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_UpdateBus =
-    ::protozero::proto_utils::FieldMetadata<
-      11,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      SdeSdePerfCrtcUpdateFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_UpdateBus kUpdateBus() { return {}; }
-  void set_update_bus(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_UpdateBus::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_UpdateClk =
-    ::protozero::proto_utils::FieldMetadata<
-      12,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      SdeSdePerfCrtcUpdateFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_UpdateClk kUpdateClk() { return {}; }
-  void set_update_clk(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_UpdateClk::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-};
-
-class SdeSdePerfCalcCrtcFtraceEvent_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/8, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  SdeSdePerfCalcCrtcFtraceEvent_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit SdeSdePerfCalcCrtcFtraceEvent_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit SdeSdePerfCalcCrtcFtraceEvent_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_bw_ctl_ebi() const { return at<1>().valid(); }
-  uint64_t bw_ctl_ebi() const { return at<1>().as_uint64(); }
-  bool has_bw_ctl_llcc() const { return at<2>().valid(); }
-  uint64_t bw_ctl_llcc() const { return at<2>().as_uint64(); }
-  bool has_bw_ctl_mnoc() const { return at<3>().valid(); }
-  uint64_t bw_ctl_mnoc() const { return at<3>().as_uint64(); }
-  bool has_core_clk_rate() const { return at<4>().valid(); }
-  uint32_t core_clk_rate() const { return at<4>().as_uint32(); }
-  bool has_crtc() const { return at<5>().valid(); }
-  uint32_t crtc() const { return at<5>().as_uint32(); }
-  bool has_ib_ebi() const { return at<6>().valid(); }
-  uint64_t ib_ebi() const { return at<6>().as_uint64(); }
-  bool has_ib_llcc() const { return at<7>().valid(); }
-  uint64_t ib_llcc() const { return at<7>().as_uint64(); }
-  bool has_ib_mnoc() const { return at<8>().valid(); }
-  uint64_t ib_mnoc() const { return at<8>().as_uint64(); }
-};
-
-class SdeSdePerfCalcCrtcFtraceEvent : public ::protozero::Message {
- public:
-  using Decoder = SdeSdePerfCalcCrtcFtraceEvent_Decoder;
-  enum : int32_t {
-    kBwCtlEbiFieldNumber = 1,
-    kBwCtlLlccFieldNumber = 2,
-    kBwCtlMnocFieldNumber = 3,
-    kCoreClkRateFieldNumber = 4,
-    kCrtcFieldNumber = 5,
-    kIbEbiFieldNumber = 6,
-    kIbLlccFieldNumber = 7,
-    kIbMnocFieldNumber = 8,
-  };
-
-  using FieldMetadata_BwCtlEbi =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      SdeSdePerfCalcCrtcFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_BwCtlEbi kBwCtlEbi() { return {}; }
-  void set_bw_ctl_ebi(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_BwCtlEbi::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_BwCtlLlcc =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      SdeSdePerfCalcCrtcFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_BwCtlLlcc kBwCtlLlcc() { return {}; }
-  void set_bw_ctl_llcc(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_BwCtlLlcc::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_BwCtlMnoc =
-    ::protozero::proto_utils::FieldMetadata<
-      3,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      SdeSdePerfCalcCrtcFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_BwCtlMnoc kBwCtlMnoc() { return {}; }
-  void set_bw_ctl_mnoc(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_BwCtlMnoc::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_CoreClkRate =
-    ::protozero::proto_utils::FieldMetadata<
-      4,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      SdeSdePerfCalcCrtcFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_CoreClkRate kCoreClkRate() { return {}; }
-  void set_core_clk_rate(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_CoreClkRate::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Crtc =
-    ::protozero::proto_utils::FieldMetadata<
-      5,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      SdeSdePerfCalcCrtcFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Crtc kCrtc() { return {}; }
-  void set_crtc(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Crtc::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_IbEbi =
-    ::protozero::proto_utils::FieldMetadata<
-      6,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      SdeSdePerfCalcCrtcFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_IbEbi kIbEbi() { return {}; }
-  void set_ib_ebi(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_IbEbi::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_IbLlcc =
-    ::protozero::proto_utils::FieldMetadata<
-      7,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      SdeSdePerfCalcCrtcFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_IbLlcc kIbLlcc() { return {}; }
-  void set_ib_llcc(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_IbLlcc::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_IbMnoc =
-    ::protozero::proto_utils::FieldMetadata<
-      8,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      SdeSdePerfCalcCrtcFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_IbMnoc kIbMnoc() { return {}; }
-  void set_ib_mnoc(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_IbMnoc::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-};
-
-class SdeSdeEvtlogFtraceEvent_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/3, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  SdeSdeEvtlogFtraceEvent_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit SdeSdeEvtlogFtraceEvent_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit SdeSdeEvtlogFtraceEvent_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_evtlog_tag() const { return at<1>().valid(); }
-  ::protozero::ConstChars evtlog_tag() const { return at<1>().as_string(); }
-  bool has_pid() const { return at<2>().valid(); }
-  int32_t pid() const { return at<2>().as_int32(); }
-  bool has_tag_id() const { return at<3>().valid(); }
-  uint32_t tag_id() const { return at<3>().as_uint32(); }
-};
-
-class SdeSdeEvtlogFtraceEvent : public ::protozero::Message {
- public:
-  using Decoder = SdeSdeEvtlogFtraceEvent_Decoder;
-  enum : int32_t {
-    kEvtlogTagFieldNumber = 1,
-    kPidFieldNumber = 2,
-    kTagIdFieldNumber = 3,
-  };
-
-  using FieldMetadata_EvtlogTag =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kString,
-      std::string,
-      SdeSdeEvtlogFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_EvtlogTag kEvtlogTag() { return {}; }
-  void set_evtlog_tag(const char* data, size_t size) {
-    AppendBytes(FieldMetadata_EvtlogTag::kFieldId, data, size);
-  }
-  void set_evtlog_tag(std::string value) {
-    static constexpr uint32_t field_id = FieldMetadata_EvtlogTag::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kString>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Pid =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt32,
-      int32_t,
-      SdeSdeEvtlogFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Pid kPid() { return {}; }
-  void set_pid(int32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Pid::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_TagId =
-    ::protozero::proto_utils::FieldMetadata<
-      3,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      SdeSdeEvtlogFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_TagId kTagId() { return {}; }
-  void set_tag_id(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_TagId::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-};
-
-class SdeTracingMarkWriteFtraceEvent_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/5, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  SdeTracingMarkWriteFtraceEvent_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit SdeTracingMarkWriteFtraceEvent_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit SdeTracingMarkWriteFtraceEvent_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_pid() const { return at<1>().valid(); }
-  int32_t pid() const { return at<1>().as_int32(); }
-  bool has_trace_name() const { return at<2>().valid(); }
-  ::protozero::ConstChars trace_name() const { return at<2>().as_string(); }
-  bool has_trace_type() const { return at<3>().valid(); }
-  uint32_t trace_type() const { return at<3>().as_uint32(); }
-  bool has_value() const { return at<4>().valid(); }
-  int32_t value() const { return at<4>().as_int32(); }
-  bool has_trace_begin() const { return at<5>().valid(); }
-  uint32_t trace_begin() const { return at<5>().as_uint32(); }
-};
-
-class SdeTracingMarkWriteFtraceEvent : public ::protozero::Message {
- public:
-  using Decoder = SdeTracingMarkWriteFtraceEvent_Decoder;
-  enum : int32_t {
-    kPidFieldNumber = 1,
-    kTraceNameFieldNumber = 2,
-    kTraceTypeFieldNumber = 3,
-    kValueFieldNumber = 4,
-    kTraceBeginFieldNumber = 5,
-  };
-
-  using FieldMetadata_Pid =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt32,
-      int32_t,
-      SdeTracingMarkWriteFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Pid kPid() { return {}; }
-  void set_pid(int32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Pid::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_TraceName =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kString,
-      std::string,
-      SdeTracingMarkWriteFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_TraceName kTraceName() { return {}; }
-  void set_trace_name(const char* data, size_t size) {
-    AppendBytes(FieldMetadata_TraceName::kFieldId, data, size);
-  }
-  void set_trace_name(std::string value) {
-    static constexpr uint32_t field_id = FieldMetadata_TraceName::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kString>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_TraceType =
-    ::protozero::proto_utils::FieldMetadata<
-      3,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      SdeTracingMarkWriteFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_TraceType kTraceType() { return {}; }
-  void set_trace_type(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_TraceType::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Value =
-    ::protozero::proto_utils::FieldMetadata<
-      4,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt32,
-      int32_t,
-      SdeTracingMarkWriteFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Value kValue() { return {}; }
-  void set_value(int32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Value::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_TraceBegin =
-    ::protozero::proto_utils::FieldMetadata<
-      5,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      SdeTracingMarkWriteFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_TraceBegin kTraceBegin() { return {}; }
-  void set_trace_begin(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_TraceBegin::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-};
-
-} // Namespace.
-} // Namespace.
-} // Namespace.
-#endif  // Include guard.
-// gen_amalgamated begin header: gen/protos/perfetto/trace/ftrace/signal.pbzero.h
-// Autogenerated by the ProtoZero compiler plugin. DO NOT EDIT.
-
-#ifndef PERFETTO_PROTOS_PROTOS_PERFETTO_TRACE_FTRACE_SIGNAL_PROTO_H_
-#define PERFETTO_PROTOS_PROTOS_PERFETTO_TRACE_FTRACE_SIGNAL_PROTO_H_
-
-#include <stddef.h>
-#include <stdint.h>
-
-// gen_amalgamated expanded: #include "perfetto/protozero/field_writer.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/message.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/packed_repeated_fields.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/proto_decoder.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/proto_utils.h"
-
-namespace perfetto {
-namespace protos {
-namespace pbzero {
-
-
-class SignalGenerateFtraceEvent_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/6, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  SignalGenerateFtraceEvent_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit SignalGenerateFtraceEvent_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit SignalGenerateFtraceEvent_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_code() const { return at<1>().valid(); }
-  int32_t code() const { return at<1>().as_int32(); }
-  bool has_comm() const { return at<2>().valid(); }
-  ::protozero::ConstChars comm() const { return at<2>().as_string(); }
-  bool has_group() const { return at<3>().valid(); }
-  int32_t group() const { return at<3>().as_int32(); }
-  bool has_pid() const { return at<4>().valid(); }
-  int32_t pid() const { return at<4>().as_int32(); }
-  bool has_result() const { return at<5>().valid(); }
-  int32_t result() const { return at<5>().as_int32(); }
-  bool has_sig() const { return at<6>().valid(); }
-  int32_t sig() const { return at<6>().as_int32(); }
-};
-
-class SignalGenerateFtraceEvent : public ::protozero::Message {
- public:
-  using Decoder = SignalGenerateFtraceEvent_Decoder;
-  enum : int32_t {
-    kCodeFieldNumber = 1,
-    kCommFieldNumber = 2,
-    kGroupFieldNumber = 3,
-    kPidFieldNumber = 4,
-    kResultFieldNumber = 5,
-    kSigFieldNumber = 6,
-  };
-
-  using FieldMetadata_Code =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt32,
-      int32_t,
-      SignalGenerateFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Code kCode() { return {}; }
-  void set_code(int32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Code::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Comm =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kString,
-      std::string,
-      SignalGenerateFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Comm kComm() { return {}; }
-  void set_comm(const char* data, size_t size) {
-    AppendBytes(FieldMetadata_Comm::kFieldId, data, size);
-  }
-  void set_comm(std::string value) {
-    static constexpr uint32_t field_id = FieldMetadata_Comm::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kString>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Group =
-    ::protozero::proto_utils::FieldMetadata<
-      3,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt32,
-      int32_t,
-      SignalGenerateFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Group kGroup() { return {}; }
-  void set_group(int32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Group::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Pid =
-    ::protozero::proto_utils::FieldMetadata<
-      4,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt32,
-      int32_t,
-      SignalGenerateFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Pid kPid() { return {}; }
-  void set_pid(int32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Pid::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Result =
-    ::protozero::proto_utils::FieldMetadata<
-      5,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt32,
-      int32_t,
-      SignalGenerateFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Result kResult() { return {}; }
-  void set_result(int32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Result::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Sig =
-    ::protozero::proto_utils::FieldMetadata<
-      6,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt32,
-      int32_t,
-      SignalGenerateFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Sig kSig() { return {}; }
-  void set_sig(int32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Sig::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt32>
-        ::Append(*this, field_id, value);
-  }
-};
-
-class SignalDeliverFtraceEvent_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/3, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  SignalDeliverFtraceEvent_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit SignalDeliverFtraceEvent_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit SignalDeliverFtraceEvent_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_code() const { return at<1>().valid(); }
-  int32_t code() const { return at<1>().as_int32(); }
-  bool has_sa_flags() const { return at<2>().valid(); }
-  uint64_t sa_flags() const { return at<2>().as_uint64(); }
-  bool has_sig() const { return at<3>().valid(); }
-  int32_t sig() const { return at<3>().as_int32(); }
-};
-
-class SignalDeliverFtraceEvent : public ::protozero::Message {
- public:
-  using Decoder = SignalDeliverFtraceEvent_Decoder;
-  enum : int32_t {
-    kCodeFieldNumber = 1,
-    kSaFlagsFieldNumber = 2,
-    kSigFieldNumber = 3,
-  };
-
-  using FieldMetadata_Code =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt32,
-      int32_t,
-      SignalDeliverFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Code kCode() { return {}; }
-  void set_code(int32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Code::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_SaFlags =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      SignalDeliverFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_SaFlags kSaFlags() { return {}; }
-  void set_sa_flags(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_SaFlags::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Sig =
-    ::protozero::proto_utils::FieldMetadata<
-      3,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt32,
-      int32_t,
-      SignalDeliverFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Sig kSig() { return {}; }
-  void set_sig(int32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Sig::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt32>
-        ::Append(*this, field_id, value);
-  }
-};
-
-} // Namespace.
-} // Namespace.
-} // Namespace.
-#endif  // Include guard.
-// gen_amalgamated begin header: gen/protos/perfetto/trace/ftrace/sync.pbzero.h
-// Autogenerated by the ProtoZero compiler plugin. DO NOT EDIT.
-
-#ifndef PERFETTO_PROTOS_PROTOS_PERFETTO_TRACE_FTRACE_SYNC_PROTO_H_
-#define PERFETTO_PROTOS_PROTOS_PERFETTO_TRACE_FTRACE_SYNC_PROTO_H_
-
-#include <stddef.h>
-#include <stdint.h>
-
-// gen_amalgamated expanded: #include "perfetto/protozero/field_writer.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/message.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/packed_repeated_fields.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/proto_decoder.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/proto_utils.h"
-
-namespace perfetto {
-namespace protos {
-namespace pbzero {
-
-
-class SyncWaitFtraceEvent_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/3, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  SyncWaitFtraceEvent_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit SyncWaitFtraceEvent_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit SyncWaitFtraceEvent_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_name() const { return at<1>().valid(); }
-  ::protozero::ConstChars name() const { return at<1>().as_string(); }
-  bool has_status() const { return at<2>().valid(); }
-  int32_t status() const { return at<2>().as_int32(); }
-  bool has_begin() const { return at<3>().valid(); }
-  uint32_t begin() const { return at<3>().as_uint32(); }
-};
-
-class SyncWaitFtraceEvent : public ::protozero::Message {
- public:
-  using Decoder = SyncWaitFtraceEvent_Decoder;
-  enum : int32_t {
-    kNameFieldNumber = 1,
-    kStatusFieldNumber = 2,
-    kBeginFieldNumber = 3,
-  };
-
-  using FieldMetadata_Name =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kString,
-      std::string,
-      SyncWaitFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Name kName() { return {}; }
-  void set_name(const char* data, size_t size) {
-    AppendBytes(FieldMetadata_Name::kFieldId, data, size);
-  }
-  void set_name(std::string value) {
-    static constexpr uint32_t field_id = FieldMetadata_Name::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kString>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Status =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt32,
-      int32_t,
-      SyncWaitFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Status kStatus() { return {}; }
-  void set_status(int32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Status::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Begin =
-    ::protozero::proto_utils::FieldMetadata<
-      3,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      SyncWaitFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Begin kBegin() { return {}; }
-  void set_begin(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Begin::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-};
-
-class SyncTimelineFtraceEvent_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/2, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  SyncTimelineFtraceEvent_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit SyncTimelineFtraceEvent_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit SyncTimelineFtraceEvent_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_name() const { return at<1>().valid(); }
-  ::protozero::ConstChars name() const { return at<1>().as_string(); }
-  bool has_value() const { return at<2>().valid(); }
-  ::protozero::ConstChars value() const { return at<2>().as_string(); }
-};
-
-class SyncTimelineFtraceEvent : public ::protozero::Message {
- public:
-  using Decoder = SyncTimelineFtraceEvent_Decoder;
-  enum : int32_t {
-    kNameFieldNumber = 1,
-    kValueFieldNumber = 2,
-  };
-
-  using FieldMetadata_Name =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kString,
-      std::string,
-      SyncTimelineFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Name kName() { return {}; }
-  void set_name(const char* data, size_t size) {
-    AppendBytes(FieldMetadata_Name::kFieldId, data, size);
-  }
-  void set_name(std::string value) {
-    static constexpr uint32_t field_id = FieldMetadata_Name::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kString>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Value =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kString,
-      std::string,
-      SyncTimelineFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Value kValue() { return {}; }
-  void set_value(const char* data, size_t size) {
-    AppendBytes(FieldMetadata_Value::kFieldId, data, size);
-  }
-  void set_value(std::string value) {
-    static constexpr uint32_t field_id = FieldMetadata_Value::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kString>
-        ::Append(*this, field_id, value);
-  }
-};
-
-class SyncPtFtraceEvent_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/2, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  SyncPtFtraceEvent_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit SyncPtFtraceEvent_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit SyncPtFtraceEvent_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_timeline() const { return at<1>().valid(); }
-  ::protozero::ConstChars timeline() const { return at<1>().as_string(); }
-  bool has_value() const { return at<2>().valid(); }
-  ::protozero::ConstChars value() const { return at<2>().as_string(); }
-};
-
-class SyncPtFtraceEvent : public ::protozero::Message {
- public:
-  using Decoder = SyncPtFtraceEvent_Decoder;
-  enum : int32_t {
-    kTimelineFieldNumber = 1,
-    kValueFieldNumber = 2,
-  };
-
-  using FieldMetadata_Timeline =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kString,
-      std::string,
-      SyncPtFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Timeline kTimeline() { return {}; }
-  void set_timeline(const char* data, size_t size) {
-    AppendBytes(FieldMetadata_Timeline::kFieldId, data, size);
-  }
-  void set_timeline(std::string value) {
-    static constexpr uint32_t field_id = FieldMetadata_Timeline::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kString>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Value =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kString,
-      std::string,
-      SyncPtFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Value kValue() { return {}; }
-  void set_value(const char* data, size_t size) {
-    AppendBytes(FieldMetadata_Value::kFieldId, data, size);
-  }
-  void set_value(std::string value) {
-    static constexpr uint32_t field_id = FieldMetadata_Value::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kString>
-        ::Append(*this, field_id, value);
-  }
-};
-
-} // Namespace.
-} // Namespace.
-} // Namespace.
-#endif  // Include guard.
-// gen_amalgamated begin header: gen/protos/perfetto/trace/ftrace/systrace.pbzero.h
-// Autogenerated by the ProtoZero compiler plugin. DO NOT EDIT.
-
-#ifndef PERFETTO_PROTOS_PROTOS_PERFETTO_TRACE_FTRACE_SYSTRACE_PROTO_H_
-#define PERFETTO_PROTOS_PROTOS_PERFETTO_TRACE_FTRACE_SYSTRACE_PROTO_H_
-
-#include <stddef.h>
-#include <stdint.h>
-
-// gen_amalgamated expanded: #include "perfetto/protozero/field_writer.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/message.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/packed_repeated_fields.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/proto_decoder.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/proto_utils.h"
-
-namespace perfetto {
-namespace protos {
-namespace pbzero {
-
-
-class ZeroFtraceEvent_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/4, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  ZeroFtraceEvent_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit ZeroFtraceEvent_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit ZeroFtraceEvent_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_flag() const { return at<1>().valid(); }
-  int32_t flag() const { return at<1>().as_int32(); }
-  bool has_name() const { return at<2>().valid(); }
-  ::protozero::ConstChars name() const { return at<2>().as_string(); }
-  bool has_pid() const { return at<3>().valid(); }
-  int32_t pid() const { return at<3>().as_int32(); }
-  bool has_value() const { return at<4>().valid(); }
-  int64_t value() const { return at<4>().as_int64(); }
-};
-
-class ZeroFtraceEvent : public ::protozero::Message {
- public:
-  using Decoder = ZeroFtraceEvent_Decoder;
-  enum : int32_t {
-    kFlagFieldNumber = 1,
-    kNameFieldNumber = 2,
-    kPidFieldNumber = 3,
-    kValueFieldNumber = 4,
-  };
-
-  using FieldMetadata_Flag =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt32,
-      int32_t,
-      ZeroFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Flag kFlag() { return {}; }
-  void set_flag(int32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Flag::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Name =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kString,
-      std::string,
-      ZeroFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Name kName() { return {}; }
-  void set_name(const char* data, size_t size) {
-    AppendBytes(FieldMetadata_Name::kFieldId, data, size);
-  }
-  void set_name(std::string value) {
-    static constexpr uint32_t field_id = FieldMetadata_Name::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kString>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Pid =
-    ::protozero::proto_utils::FieldMetadata<
-      3,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt32,
-      int32_t,
-      ZeroFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Pid kPid() { return {}; }
-  void set_pid(int32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Pid::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Value =
-    ::protozero::proto_utils::FieldMetadata<
-      4,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt64,
-      int64_t,
-      ZeroFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Value kValue() { return {}; }
-  void set_value(int64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Value::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt64>
-        ::Append(*this, field_id, value);
-  }
-};
-
-} // Namespace.
-} // Namespace.
-} // Namespace.
-#endif  // Include guard.
-// gen_amalgamated begin header: gen/protos/perfetto/trace/ftrace/task.pbzero.h
-// Autogenerated by the ProtoZero compiler plugin. DO NOT EDIT.
-
-#ifndef PERFETTO_PROTOS_PROTOS_PERFETTO_TRACE_FTRACE_TASK_PROTO_H_
-#define PERFETTO_PROTOS_PROTOS_PERFETTO_TRACE_FTRACE_TASK_PROTO_H_
-
-#include <stddef.h>
-#include <stdint.h>
-
-// gen_amalgamated expanded: #include "perfetto/protozero/field_writer.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/message.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/packed_repeated_fields.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/proto_decoder.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/proto_utils.h"
-
-namespace perfetto {
-namespace protos {
-namespace pbzero {
-
-
-class TaskRenameFtraceEvent_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/4, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  TaskRenameFtraceEvent_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit TaskRenameFtraceEvent_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit TaskRenameFtraceEvent_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_pid() const { return at<1>().valid(); }
-  int32_t pid() const { return at<1>().as_int32(); }
-  bool has_oldcomm() const { return at<2>().valid(); }
-  ::protozero::ConstChars oldcomm() const { return at<2>().as_string(); }
-  bool has_newcomm() const { return at<3>().valid(); }
-  ::protozero::ConstChars newcomm() const { return at<3>().as_string(); }
-  bool has_oom_score_adj() const { return at<4>().valid(); }
-  int32_t oom_score_adj() const { return at<4>().as_int32(); }
-};
-
-class TaskRenameFtraceEvent : public ::protozero::Message {
- public:
-  using Decoder = TaskRenameFtraceEvent_Decoder;
-  enum : int32_t {
-    kPidFieldNumber = 1,
-    kOldcommFieldNumber = 2,
-    kNewcommFieldNumber = 3,
-    kOomScoreAdjFieldNumber = 4,
-  };
-
-  using FieldMetadata_Pid =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt32,
-      int32_t,
-      TaskRenameFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Pid kPid() { return {}; }
-  void set_pid(int32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Pid::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Oldcomm =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kString,
-      std::string,
-      TaskRenameFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Oldcomm kOldcomm() { return {}; }
-  void set_oldcomm(const char* data, size_t size) {
-    AppendBytes(FieldMetadata_Oldcomm::kFieldId, data, size);
-  }
-  void set_oldcomm(std::string value) {
-    static constexpr uint32_t field_id = FieldMetadata_Oldcomm::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kString>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Newcomm =
-    ::protozero::proto_utils::FieldMetadata<
-      3,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kString,
-      std::string,
-      TaskRenameFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Newcomm kNewcomm() { return {}; }
-  void set_newcomm(const char* data, size_t size) {
-    AppendBytes(FieldMetadata_Newcomm::kFieldId, data, size);
-  }
-  void set_newcomm(std::string value) {
-    static constexpr uint32_t field_id = FieldMetadata_Newcomm::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kString>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_OomScoreAdj =
-    ::protozero::proto_utils::FieldMetadata<
-      4,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt32,
-      int32_t,
-      TaskRenameFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_OomScoreAdj kOomScoreAdj() { return {}; }
-  void set_oom_score_adj(int32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_OomScoreAdj::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt32>
-        ::Append(*this, field_id, value);
-  }
-};
-
-class TaskNewtaskFtraceEvent_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/4, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  TaskNewtaskFtraceEvent_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit TaskNewtaskFtraceEvent_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit TaskNewtaskFtraceEvent_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_pid() const { return at<1>().valid(); }
-  int32_t pid() const { return at<1>().as_int32(); }
-  bool has_comm() const { return at<2>().valid(); }
-  ::protozero::ConstChars comm() const { return at<2>().as_string(); }
-  bool has_clone_flags() const { return at<3>().valid(); }
-  uint64_t clone_flags() const { return at<3>().as_uint64(); }
-  bool has_oom_score_adj() const { return at<4>().valid(); }
-  int32_t oom_score_adj() const { return at<4>().as_int32(); }
-};
-
-class TaskNewtaskFtraceEvent : public ::protozero::Message {
- public:
-  using Decoder = TaskNewtaskFtraceEvent_Decoder;
-  enum : int32_t {
-    kPidFieldNumber = 1,
-    kCommFieldNumber = 2,
-    kCloneFlagsFieldNumber = 3,
-    kOomScoreAdjFieldNumber = 4,
-  };
-
-  using FieldMetadata_Pid =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt32,
-      int32_t,
-      TaskNewtaskFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Pid kPid() { return {}; }
-  void set_pid(int32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Pid::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Comm =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kString,
-      std::string,
-      TaskNewtaskFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Comm kComm() { return {}; }
-  void set_comm(const char* data, size_t size) {
-    AppendBytes(FieldMetadata_Comm::kFieldId, data, size);
-  }
-  void set_comm(std::string value) {
-    static constexpr uint32_t field_id = FieldMetadata_Comm::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kString>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_CloneFlags =
-    ::protozero::proto_utils::FieldMetadata<
-      3,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      TaskNewtaskFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_CloneFlags kCloneFlags() { return {}; }
-  void set_clone_flags(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_CloneFlags::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_OomScoreAdj =
-    ::protozero::proto_utils::FieldMetadata<
-      4,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt32,
-      int32_t,
-      TaskNewtaskFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_OomScoreAdj kOomScoreAdj() { return {}; }
-  void set_oom_score_adj(int32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_OomScoreAdj::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt32>
-        ::Append(*this, field_id, value);
-  }
-};
-
-} // Namespace.
-} // Namespace.
-} // Namespace.
-#endif  // Include guard.
-// gen_amalgamated begin header: gen/protos/perfetto/trace/ftrace/thermal.pbzero.h
-// Autogenerated by the ProtoZero compiler plugin. DO NOT EDIT.
-
-#ifndef PERFETTO_PROTOS_PROTOS_PERFETTO_TRACE_FTRACE_THERMAL_PROTO_H_
-#define PERFETTO_PROTOS_PROTOS_PERFETTO_TRACE_FTRACE_THERMAL_PROTO_H_
-
-#include <stddef.h>
-#include <stdint.h>
-
-// gen_amalgamated expanded: #include "perfetto/protozero/field_writer.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/message.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/packed_repeated_fields.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/proto_decoder.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/proto_utils.h"
-
-namespace perfetto {
-namespace protos {
-namespace pbzero {
-
-
-class CdevUpdateFtraceEvent_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/2, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  CdevUpdateFtraceEvent_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit CdevUpdateFtraceEvent_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit CdevUpdateFtraceEvent_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_target() const { return at<1>().valid(); }
-  uint64_t target() const { return at<1>().as_uint64(); }
-  bool has_type() const { return at<2>().valid(); }
-  ::protozero::ConstChars type() const { return at<2>().as_string(); }
-};
-
-class CdevUpdateFtraceEvent : public ::protozero::Message {
- public:
-  using Decoder = CdevUpdateFtraceEvent_Decoder;
-  enum : int32_t {
-    kTargetFieldNumber = 1,
-    kTypeFieldNumber = 2,
-  };
-
-  using FieldMetadata_Target =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      CdevUpdateFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Target kTarget() { return {}; }
-  void set_target(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Target::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Type =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kString,
-      std::string,
-      CdevUpdateFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Type kType() { return {}; }
-  void set_type(const char* data, size_t size) {
-    AppendBytes(FieldMetadata_Type::kFieldId, data, size);
-  }
-  void set_type(std::string value) {
-    static constexpr uint32_t field_id = FieldMetadata_Type::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kString>
-        ::Append(*this, field_id, value);
-  }
-};
-
-class ThermalTemperatureFtraceEvent_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/4, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  ThermalTemperatureFtraceEvent_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit ThermalTemperatureFtraceEvent_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit ThermalTemperatureFtraceEvent_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_id() const { return at<1>().valid(); }
-  int32_t id() const { return at<1>().as_int32(); }
-  bool has_temp() const { return at<2>().valid(); }
-  int32_t temp() const { return at<2>().as_int32(); }
-  bool has_temp_prev() const { return at<3>().valid(); }
-  int32_t temp_prev() const { return at<3>().as_int32(); }
-  bool has_thermal_zone() const { return at<4>().valid(); }
-  ::protozero::ConstChars thermal_zone() const { return at<4>().as_string(); }
-};
-
-class ThermalTemperatureFtraceEvent : public ::protozero::Message {
- public:
-  using Decoder = ThermalTemperatureFtraceEvent_Decoder;
-  enum : int32_t {
-    kIdFieldNumber = 1,
-    kTempFieldNumber = 2,
-    kTempPrevFieldNumber = 3,
-    kThermalZoneFieldNumber = 4,
-  };
-
-  using FieldMetadata_Id =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt32,
-      int32_t,
-      ThermalTemperatureFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Id kId() { return {}; }
-  void set_id(int32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Id::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Temp =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt32,
-      int32_t,
-      ThermalTemperatureFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Temp kTemp() { return {}; }
-  void set_temp(int32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Temp::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_TempPrev =
-    ::protozero::proto_utils::FieldMetadata<
-      3,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt32,
-      int32_t,
-      ThermalTemperatureFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_TempPrev kTempPrev() { return {}; }
-  void set_temp_prev(int32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_TempPrev::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_ThermalZone =
-    ::protozero::proto_utils::FieldMetadata<
-      4,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kString,
-      std::string,
-      ThermalTemperatureFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_ThermalZone kThermalZone() { return {}; }
-  void set_thermal_zone(const char* data, size_t size) {
-    AppendBytes(FieldMetadata_ThermalZone::kFieldId, data, size);
-  }
-  void set_thermal_zone(std::string value) {
-    static constexpr uint32_t field_id = FieldMetadata_ThermalZone::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kString>
-        ::Append(*this, field_id, value);
-  }
-};
-
-} // Namespace.
-} // Namespace.
-} // Namespace.
-#endif  // Include guard.
-// gen_amalgamated begin header: gen/protos/perfetto/trace/ftrace/vmscan.pbzero.h
-// Autogenerated by the ProtoZero compiler plugin. DO NOT EDIT.
-
-#ifndef PERFETTO_PROTOS_PROTOS_PERFETTO_TRACE_FTRACE_VMSCAN_PROTO_H_
-#define PERFETTO_PROTOS_PROTOS_PERFETTO_TRACE_FTRACE_VMSCAN_PROTO_H_
-
-#include <stddef.h>
-#include <stdint.h>
-
-// gen_amalgamated expanded: #include "perfetto/protozero/field_writer.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/message.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/packed_repeated_fields.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/proto_decoder.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/proto_utils.h"
-
-namespace perfetto {
-namespace protos {
-namespace pbzero {
-
-
-class MmVmscanKswapdSleepFtraceEvent_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/1, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  MmVmscanKswapdSleepFtraceEvent_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit MmVmscanKswapdSleepFtraceEvent_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit MmVmscanKswapdSleepFtraceEvent_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_nid() const { return at<1>().valid(); }
-  int32_t nid() const { return at<1>().as_int32(); }
-};
-
-class MmVmscanKswapdSleepFtraceEvent : public ::protozero::Message {
- public:
-  using Decoder = MmVmscanKswapdSleepFtraceEvent_Decoder;
-  enum : int32_t {
-    kNidFieldNumber = 1,
-  };
-
-  using FieldMetadata_Nid =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt32,
-      int32_t,
-      MmVmscanKswapdSleepFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Nid kNid() { return {}; }
-  void set_nid(int32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Nid::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt32>
-        ::Append(*this, field_id, value);
-  }
-};
-
-class MmVmscanKswapdWakeFtraceEvent_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/2, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  MmVmscanKswapdWakeFtraceEvent_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit MmVmscanKswapdWakeFtraceEvent_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit MmVmscanKswapdWakeFtraceEvent_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_nid() const { return at<1>().valid(); }
-  int32_t nid() const { return at<1>().as_int32(); }
-  bool has_order() const { return at<2>().valid(); }
-  int32_t order() const { return at<2>().as_int32(); }
-};
-
-class MmVmscanKswapdWakeFtraceEvent : public ::protozero::Message {
- public:
-  using Decoder = MmVmscanKswapdWakeFtraceEvent_Decoder;
-  enum : int32_t {
-    kNidFieldNumber = 1,
-    kOrderFieldNumber = 2,
-  };
-
-  using FieldMetadata_Nid =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt32,
-      int32_t,
-      MmVmscanKswapdWakeFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Nid kNid() { return {}; }
-  void set_nid(int32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Nid::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Order =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt32,
-      int32_t,
-      MmVmscanKswapdWakeFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Order kOrder() { return {}; }
-  void set_order(int32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Order::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt32>
-        ::Append(*this, field_id, value);
-  }
-};
-
-class MmVmscanDirectReclaimEndFtraceEvent_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/1, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  MmVmscanDirectReclaimEndFtraceEvent_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit MmVmscanDirectReclaimEndFtraceEvent_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit MmVmscanDirectReclaimEndFtraceEvent_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_nr_reclaimed() const { return at<1>().valid(); }
-  uint64_t nr_reclaimed() const { return at<1>().as_uint64(); }
-};
-
-class MmVmscanDirectReclaimEndFtraceEvent : public ::protozero::Message {
- public:
-  using Decoder = MmVmscanDirectReclaimEndFtraceEvent_Decoder;
-  enum : int32_t {
-    kNrReclaimedFieldNumber = 1,
-  };
-
-  using FieldMetadata_NrReclaimed =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      MmVmscanDirectReclaimEndFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_NrReclaimed kNrReclaimed() { return {}; }
-  void set_nr_reclaimed(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_NrReclaimed::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-};
-
-class MmVmscanDirectReclaimBeginFtraceEvent_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/3, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  MmVmscanDirectReclaimBeginFtraceEvent_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit MmVmscanDirectReclaimBeginFtraceEvent_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit MmVmscanDirectReclaimBeginFtraceEvent_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_order() const { return at<1>().valid(); }
-  int32_t order() const { return at<1>().as_int32(); }
-  bool has_may_writepage() const { return at<2>().valid(); }
-  int32_t may_writepage() const { return at<2>().as_int32(); }
-  bool has_gfp_flags() const { return at<3>().valid(); }
-  uint32_t gfp_flags() const { return at<3>().as_uint32(); }
-};
-
-class MmVmscanDirectReclaimBeginFtraceEvent : public ::protozero::Message {
- public:
-  using Decoder = MmVmscanDirectReclaimBeginFtraceEvent_Decoder;
-  enum : int32_t {
-    kOrderFieldNumber = 1,
-    kMayWritepageFieldNumber = 2,
-    kGfpFlagsFieldNumber = 3,
-  };
-
-  using FieldMetadata_Order =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt32,
-      int32_t,
-      MmVmscanDirectReclaimBeginFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Order kOrder() { return {}; }
-  void set_order(int32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Order::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_MayWritepage =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt32,
-      int32_t,
-      MmVmscanDirectReclaimBeginFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_MayWritepage kMayWritepage() { return {}; }
-  void set_may_writepage(int32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_MayWritepage::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_GfpFlags =
-    ::protozero::proto_utils::FieldMetadata<
-      3,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      MmVmscanDirectReclaimBeginFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_GfpFlags kGfpFlags() { return {}; }
-  void set_gfp_flags(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_GfpFlags::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-};
-
-} // Namespace.
-} // Namespace.
-} // Namespace.
-#endif  // Include guard.
-// gen_amalgamated begin header: gen/protos/perfetto/trace/ftrace/workqueue.pbzero.h
-// Autogenerated by the ProtoZero compiler plugin. DO NOT EDIT.
-
-#ifndef PERFETTO_PROTOS_PROTOS_PERFETTO_TRACE_FTRACE_WORKQUEUE_PROTO_H_
-#define PERFETTO_PROTOS_PROTOS_PERFETTO_TRACE_FTRACE_WORKQUEUE_PROTO_H_
-
-#include <stddef.h>
-#include <stdint.h>
-
-// gen_amalgamated expanded: #include "perfetto/protozero/field_writer.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/message.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/packed_repeated_fields.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/proto_decoder.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/proto_utils.h"
-
-namespace perfetto {
-namespace protos {
-namespace pbzero {
-
-
-class WorkqueueQueueWorkFtraceEvent_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/5, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  WorkqueueQueueWorkFtraceEvent_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit WorkqueueQueueWorkFtraceEvent_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit WorkqueueQueueWorkFtraceEvent_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_work() const { return at<1>().valid(); }
-  uint64_t work() const { return at<1>().as_uint64(); }
-  bool has_function() const { return at<2>().valid(); }
-  uint64_t function() const { return at<2>().as_uint64(); }
-  bool has_workqueue() const { return at<3>().valid(); }
-  uint64_t workqueue() const { return at<3>().as_uint64(); }
-  bool has_req_cpu() const { return at<4>().valid(); }
-  uint32_t req_cpu() const { return at<4>().as_uint32(); }
-  bool has_cpu() const { return at<5>().valid(); }
-  uint32_t cpu() const { return at<5>().as_uint32(); }
-};
-
-class WorkqueueQueueWorkFtraceEvent : public ::protozero::Message {
- public:
-  using Decoder = WorkqueueQueueWorkFtraceEvent_Decoder;
-  enum : int32_t {
-    kWorkFieldNumber = 1,
-    kFunctionFieldNumber = 2,
-    kWorkqueueFieldNumber = 3,
-    kReqCpuFieldNumber = 4,
-    kCpuFieldNumber = 5,
-  };
-
-  using FieldMetadata_Work =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      WorkqueueQueueWorkFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Work kWork() { return {}; }
-  void set_work(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Work::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Function =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      WorkqueueQueueWorkFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Function kFunction() { return {}; }
-  void set_function(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Function::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Workqueue =
-    ::protozero::proto_utils::FieldMetadata<
-      3,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      WorkqueueQueueWorkFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Workqueue kWorkqueue() { return {}; }
-  void set_workqueue(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Workqueue::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_ReqCpu =
-    ::protozero::proto_utils::FieldMetadata<
-      4,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      WorkqueueQueueWorkFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_ReqCpu kReqCpu() { return {}; }
-  void set_req_cpu(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_ReqCpu::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Cpu =
-    ::protozero::proto_utils::FieldMetadata<
-      5,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      WorkqueueQueueWorkFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Cpu kCpu() { return {}; }
-  void set_cpu(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Cpu::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-};
-
-class WorkqueueExecuteStartFtraceEvent_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/2, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  WorkqueueExecuteStartFtraceEvent_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit WorkqueueExecuteStartFtraceEvent_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit WorkqueueExecuteStartFtraceEvent_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_work() const { return at<1>().valid(); }
-  uint64_t work() const { return at<1>().as_uint64(); }
-  bool has_function() const { return at<2>().valid(); }
-  uint64_t function() const { return at<2>().as_uint64(); }
-};
-
-class WorkqueueExecuteStartFtraceEvent : public ::protozero::Message {
- public:
-  using Decoder = WorkqueueExecuteStartFtraceEvent_Decoder;
-  enum : int32_t {
-    kWorkFieldNumber = 1,
-    kFunctionFieldNumber = 2,
-  };
-
-  using FieldMetadata_Work =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      WorkqueueExecuteStartFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Work kWork() { return {}; }
-  void set_work(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Work::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Function =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      WorkqueueExecuteStartFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Function kFunction() { return {}; }
-  void set_function(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Function::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-};
-
-class WorkqueueExecuteEndFtraceEvent_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/1, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  WorkqueueExecuteEndFtraceEvent_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit WorkqueueExecuteEndFtraceEvent_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit WorkqueueExecuteEndFtraceEvent_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_work() const { return at<1>().valid(); }
-  uint64_t work() const { return at<1>().as_uint64(); }
-};
-
-class WorkqueueExecuteEndFtraceEvent : public ::protozero::Message {
- public:
-  using Decoder = WorkqueueExecuteEndFtraceEvent_Decoder;
-  enum : int32_t {
-    kWorkFieldNumber = 1,
-  };
-
-  using FieldMetadata_Work =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      WorkqueueExecuteEndFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Work kWork() { return {}; }
-  void set_work(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Work::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-};
-
-class WorkqueueActivateWorkFtraceEvent_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/1, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  WorkqueueActivateWorkFtraceEvent_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit WorkqueueActivateWorkFtraceEvent_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit WorkqueueActivateWorkFtraceEvent_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_work() const { return at<1>().valid(); }
-  uint64_t work() const { return at<1>().as_uint64(); }
-};
-
-class WorkqueueActivateWorkFtraceEvent : public ::protozero::Message {
- public:
-  using Decoder = WorkqueueActivateWorkFtraceEvent_Decoder;
-  enum : int32_t {
-    kWorkFieldNumber = 1,
-  };
-
-  using FieldMetadata_Work =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      WorkqueueActivateWorkFtraceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Work kWork() { return {}; }
-  void set_work(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Work::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-};
-
-} // Namespace.
-} // Namespace.
-} // Namespace.
-#endif  // Include guard.
-// gen_amalgamated begin header: gen/protos/perfetto/trace/gpu/gpu_counter_event.pbzero.h
-// Autogenerated by the ProtoZero compiler plugin. DO NOT EDIT.
-
-#ifndef PERFETTO_PROTOS_PROTOS_PERFETTO_TRACE_GPU_GPU_COUNTER_EVENT_PROTO_H_
-#define PERFETTO_PROTOS_PROTOS_PERFETTO_TRACE_GPU_GPU_COUNTER_EVENT_PROTO_H_
-
-#include <stddef.h>
-#include <stdint.h>
-
-// gen_amalgamated expanded: #include "perfetto/protozero/field_writer.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/message.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/packed_repeated_fields.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/proto_decoder.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/proto_utils.h"
-
-namespace perfetto {
-namespace protos {
-namespace pbzero {
-
-class GpuCounterDescriptor;
-class GpuCounterEvent_GpuCounter;
-
-class GpuCounterEvent_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/3, /*HAS_NONPACKED_REPEATED_FIELDS=*/true> {
- public:
-  GpuCounterEvent_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit GpuCounterEvent_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit GpuCounterEvent_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_counter_descriptor() const { return at<1>().valid(); }
-  ::protozero::ConstBytes counter_descriptor() const { return at<1>().as_bytes(); }
-  bool has_counters() const { return at<2>().valid(); }
-  ::protozero::RepeatedFieldIterator<::protozero::ConstBytes> counters() const { return GetRepeated<::protozero::ConstBytes>(2); }
-  bool has_gpu_id() const { return at<3>().valid(); }
-  int32_t gpu_id() const { return at<3>().as_int32(); }
-};
-
-class GpuCounterEvent : public ::protozero::Message {
- public:
-  using Decoder = GpuCounterEvent_Decoder;
-  enum : int32_t {
-    kCounterDescriptorFieldNumber = 1,
-    kCountersFieldNumber = 2,
-    kGpuIdFieldNumber = 3,
-  };
-  using GpuCounter = ::perfetto::protos::pbzero::GpuCounterEvent_GpuCounter;
-
-  using FieldMetadata_CounterDescriptor =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      GpuCounterDescriptor,
-      GpuCounterEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_CounterDescriptor kCounterDescriptor() { return {}; }
-  template <typename T = GpuCounterDescriptor> T* set_counter_descriptor() {
-    return BeginNestedMessage<T>(1);
-  }
-
-
-  using FieldMetadata_Counters =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kRepeatedNotPacked,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      GpuCounterEvent_GpuCounter,
-      GpuCounterEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Counters kCounters() { return {}; }
-  template <typename T = GpuCounterEvent_GpuCounter> T* add_counters() {
-    return BeginNestedMessage<T>(2);
-  }
-
-
-  using FieldMetadata_GpuId =
-    ::protozero::proto_utils::FieldMetadata<
-      3,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt32,
-      int32_t,
-      GpuCounterEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_GpuId kGpuId() { return {}; }
-  void set_gpu_id(int32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_GpuId::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt32>
-        ::Append(*this, field_id, value);
-  }
-};
-
-class GpuCounterEvent_GpuCounter_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/3, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  GpuCounterEvent_GpuCounter_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit GpuCounterEvent_GpuCounter_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit GpuCounterEvent_GpuCounter_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_counter_id() const { return at<1>().valid(); }
-  uint32_t counter_id() const { return at<1>().as_uint32(); }
-  bool has_int_value() const { return at<2>().valid(); }
-  int64_t int_value() const { return at<2>().as_int64(); }
-  bool has_double_value() const { return at<3>().valid(); }
-  double double_value() const { return at<3>().as_double(); }
-};
-
-class GpuCounterEvent_GpuCounter : public ::protozero::Message {
- public:
-  using Decoder = GpuCounterEvent_GpuCounter_Decoder;
-  enum : int32_t {
-    kCounterIdFieldNumber = 1,
-    kIntValueFieldNumber = 2,
-    kDoubleValueFieldNumber = 3,
-  };
-
-  using FieldMetadata_CounterId =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      GpuCounterEvent_GpuCounter>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_CounterId kCounterId() { return {}; }
-  void set_counter_id(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_CounterId::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_IntValue =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt64,
-      int64_t,
-      GpuCounterEvent_GpuCounter>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_IntValue kIntValue() { return {}; }
-  void set_int_value(int64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_IntValue::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_DoubleValue =
-    ::protozero::proto_utils::FieldMetadata<
-      3,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kDouble,
-      double,
-      GpuCounterEvent_GpuCounter>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_DoubleValue kDoubleValue() { return {}; }
-  void set_double_value(double value) {
-    static constexpr uint32_t field_id = FieldMetadata_DoubleValue::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kDouble>
-        ::Append(*this, field_id, value);
-  }
-};
-
-} // Namespace.
-} // Namespace.
-} // Namespace.
-#endif  // Include guard.
-// gen_amalgamated begin header: gen/protos/perfetto/trace/gpu/gpu_log.pbzero.h
-// Autogenerated by the ProtoZero compiler plugin. DO NOT EDIT.
-
-#ifndef PERFETTO_PROTOS_PROTOS_PERFETTO_TRACE_GPU_GPU_LOG_PROTO_H_
-#define PERFETTO_PROTOS_PROTOS_PERFETTO_TRACE_GPU_GPU_LOG_PROTO_H_
-
-#include <stddef.h>
-#include <stdint.h>
-
-// gen_amalgamated expanded: #include "perfetto/protozero/field_writer.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/message.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/packed_repeated_fields.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/proto_decoder.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/proto_utils.h"
-
-namespace perfetto {
-namespace protos {
-namespace pbzero {
-
-enum GpuLog_Severity : int32_t;
-
-enum GpuLog_Severity : int32_t {
-  GpuLog_Severity_LOG_SEVERITY_UNSPECIFIED = 0,
-  GpuLog_Severity_LOG_SEVERITY_VERBOSE = 1,
-  GpuLog_Severity_LOG_SEVERITY_DEBUG = 2,
-  GpuLog_Severity_LOG_SEVERITY_INFO = 3,
-  GpuLog_Severity_LOG_SEVERITY_WARNING = 4,
-  GpuLog_Severity_LOG_SEVERITY_ERROR = 5,
-};
-
-const GpuLog_Severity GpuLog_Severity_MIN = GpuLog_Severity_LOG_SEVERITY_UNSPECIFIED;
-const GpuLog_Severity GpuLog_Severity_MAX = GpuLog_Severity_LOG_SEVERITY_ERROR;
-
-class GpuLog_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/3, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  GpuLog_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit GpuLog_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit GpuLog_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_severity() const { return at<1>().valid(); }
-  int32_t severity() const { return at<1>().as_int32(); }
-  bool has_tag() const { return at<2>().valid(); }
-  ::protozero::ConstChars tag() const { return at<2>().as_string(); }
-  bool has_log_message() const { return at<3>().valid(); }
-  ::protozero::ConstChars log_message() const { return at<3>().as_string(); }
-};
-
-class GpuLog : public ::protozero::Message {
- public:
-  using Decoder = GpuLog_Decoder;
-  enum : int32_t {
-    kSeverityFieldNumber = 1,
-    kTagFieldNumber = 2,
-    kLogMessageFieldNumber = 3,
-  };
-  using Severity = ::perfetto::protos::pbzero::GpuLog_Severity;
-  static const Severity LOG_SEVERITY_UNSPECIFIED = GpuLog_Severity_LOG_SEVERITY_UNSPECIFIED;
-  static const Severity LOG_SEVERITY_VERBOSE = GpuLog_Severity_LOG_SEVERITY_VERBOSE;
-  static const Severity LOG_SEVERITY_DEBUG = GpuLog_Severity_LOG_SEVERITY_DEBUG;
-  static const Severity LOG_SEVERITY_INFO = GpuLog_Severity_LOG_SEVERITY_INFO;
-  static const Severity LOG_SEVERITY_WARNING = GpuLog_Severity_LOG_SEVERITY_WARNING;
-  static const Severity LOG_SEVERITY_ERROR = GpuLog_Severity_LOG_SEVERITY_ERROR;
-
-  using FieldMetadata_Severity =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kEnum,
-      ::perfetto::protos::pbzero::GpuLog_Severity,
-      GpuLog>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Severity kSeverity() { return {}; }
-  void set_severity(::perfetto::protos::pbzero::GpuLog_Severity value) {
-    static constexpr uint32_t field_id = FieldMetadata_Severity::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kEnum>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Tag =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kString,
-      std::string,
-      GpuLog>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Tag kTag() { return {}; }
-  void set_tag(const char* data, size_t size) {
-    AppendBytes(FieldMetadata_Tag::kFieldId, data, size);
-  }
-  void set_tag(std::string value) {
-    static constexpr uint32_t field_id = FieldMetadata_Tag::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kString>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_LogMessage =
-    ::protozero::proto_utils::FieldMetadata<
-      3,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kString,
-      std::string,
-      GpuLog>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_LogMessage kLogMessage() { return {}; }
-  void set_log_message(const char* data, size_t size) {
-    AppendBytes(FieldMetadata_LogMessage::kFieldId, data, size);
-  }
-  void set_log_message(std::string value) {
-    static constexpr uint32_t field_id = FieldMetadata_LogMessage::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kString>
-        ::Append(*this, field_id, value);
-  }
-};
-
-} // Namespace.
-} // Namespace.
-} // Namespace.
-#endif  // Include guard.
-// gen_amalgamated begin header: gen/protos/perfetto/trace/gpu/gpu_render_stage_event.pbzero.h
-// Autogenerated by the ProtoZero compiler plugin. DO NOT EDIT.
-
-#ifndef PERFETTO_PROTOS_PROTOS_PERFETTO_TRACE_GPU_GPU_RENDER_STAGE_EVENT_PROTO_H_
-#define PERFETTO_PROTOS_PROTOS_PERFETTO_TRACE_GPU_GPU_RENDER_STAGE_EVENT_PROTO_H_
-
-#include <stddef.h>
-#include <stdint.h>
-
-// gen_amalgamated expanded: #include "perfetto/protozero/field_writer.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/message.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/packed_repeated_fields.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/proto_decoder.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/proto_utils.h"
-
-namespace perfetto {
-namespace protos {
-namespace pbzero {
-
-class GpuRenderStageEvent_ExtraData;
-class GpuRenderStageEvent_Specifications;
-class GpuRenderStageEvent_Specifications_ContextSpec;
-class GpuRenderStageEvent_Specifications_Description;
-enum InternedGpuRenderStageSpecification_RenderStageCategory : int32_t;
-enum InternedGraphicsContext_Api : int32_t;
-
-enum InternedGpuRenderStageSpecification_RenderStageCategory : int32_t {
-  InternedGpuRenderStageSpecification_RenderStageCategory_OTHER = 0,
-  InternedGpuRenderStageSpecification_RenderStageCategory_GRAPHICS = 1,
-  InternedGpuRenderStageSpecification_RenderStageCategory_COMPUTE = 2,
-};
-
-const InternedGpuRenderStageSpecification_RenderStageCategory InternedGpuRenderStageSpecification_RenderStageCategory_MIN = InternedGpuRenderStageSpecification_RenderStageCategory_OTHER;
-const InternedGpuRenderStageSpecification_RenderStageCategory InternedGpuRenderStageSpecification_RenderStageCategory_MAX = InternedGpuRenderStageSpecification_RenderStageCategory_COMPUTE;
-
-enum InternedGraphicsContext_Api : int32_t {
-  InternedGraphicsContext_Api_UNDEFINED = 0,
-  InternedGraphicsContext_Api_OPEN_GL = 1,
-  InternedGraphicsContext_Api_VULKAN = 2,
-  InternedGraphicsContext_Api_OPEN_CL = 3,
-};
-
-const InternedGraphicsContext_Api InternedGraphicsContext_Api_MIN = InternedGraphicsContext_Api_UNDEFINED;
-const InternedGraphicsContext_Api InternedGraphicsContext_Api_MAX = InternedGraphicsContext_Api_OPEN_CL;
-
-class InternedGpuRenderStageSpecification_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/4, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  InternedGpuRenderStageSpecification_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit InternedGpuRenderStageSpecification_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit InternedGpuRenderStageSpecification_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_iid() const { return at<1>().valid(); }
-  uint64_t iid() const { return at<1>().as_uint64(); }
-  bool has_name() const { return at<2>().valid(); }
-  ::protozero::ConstChars name() const { return at<2>().as_string(); }
-  bool has_description() const { return at<3>().valid(); }
-  ::protozero::ConstChars description() const { return at<3>().as_string(); }
-  bool has_category() const { return at<4>().valid(); }
-  int32_t category() const { return at<4>().as_int32(); }
-};
-
-class InternedGpuRenderStageSpecification : public ::protozero::Message {
- public:
-  using Decoder = InternedGpuRenderStageSpecification_Decoder;
-  enum : int32_t {
-    kIidFieldNumber = 1,
-    kNameFieldNumber = 2,
-    kDescriptionFieldNumber = 3,
-    kCategoryFieldNumber = 4,
-  };
-  using RenderStageCategory = ::perfetto::protos::pbzero::InternedGpuRenderStageSpecification_RenderStageCategory;
-  static const RenderStageCategory OTHER = InternedGpuRenderStageSpecification_RenderStageCategory_OTHER;
-  static const RenderStageCategory GRAPHICS = InternedGpuRenderStageSpecification_RenderStageCategory_GRAPHICS;
-  static const RenderStageCategory COMPUTE = InternedGpuRenderStageSpecification_RenderStageCategory_COMPUTE;
-
-  using FieldMetadata_Iid =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      InternedGpuRenderStageSpecification>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Iid kIid() { return {}; }
-  void set_iid(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Iid::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Name =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kString,
-      std::string,
-      InternedGpuRenderStageSpecification>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Name kName() { return {}; }
-  void set_name(const char* data, size_t size) {
-    AppendBytes(FieldMetadata_Name::kFieldId, data, size);
-  }
-  void set_name(std::string value) {
-    static constexpr uint32_t field_id = FieldMetadata_Name::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kString>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Description =
-    ::protozero::proto_utils::FieldMetadata<
-      3,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kString,
-      std::string,
-      InternedGpuRenderStageSpecification>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Description kDescription() { return {}; }
-  void set_description(const char* data, size_t size) {
-    AppendBytes(FieldMetadata_Description::kFieldId, data, size);
-  }
-  void set_description(std::string value) {
-    static constexpr uint32_t field_id = FieldMetadata_Description::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kString>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Category =
-    ::protozero::proto_utils::FieldMetadata<
-      4,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kEnum,
-      ::perfetto::protos::pbzero::InternedGpuRenderStageSpecification_RenderStageCategory,
-      InternedGpuRenderStageSpecification>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Category kCategory() { return {}; }
-  void set_category(::perfetto::protos::pbzero::InternedGpuRenderStageSpecification_RenderStageCategory value) {
-    static constexpr uint32_t field_id = FieldMetadata_Category::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kEnum>
-        ::Append(*this, field_id, value);
-  }
-};
-
-class InternedGraphicsContext_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/3, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  InternedGraphicsContext_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit InternedGraphicsContext_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit InternedGraphicsContext_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_iid() const { return at<1>().valid(); }
-  uint64_t iid() const { return at<1>().as_uint64(); }
-  bool has_pid() const { return at<2>().valid(); }
-  int32_t pid() const { return at<2>().as_int32(); }
-  bool has_api() const { return at<3>().valid(); }
-  int32_t api() const { return at<3>().as_int32(); }
-};
-
-class InternedGraphicsContext : public ::protozero::Message {
- public:
-  using Decoder = InternedGraphicsContext_Decoder;
-  enum : int32_t {
-    kIidFieldNumber = 1,
-    kPidFieldNumber = 2,
-    kApiFieldNumber = 3,
-  };
-  using Api = ::perfetto::protos::pbzero::InternedGraphicsContext_Api;
-  static const Api UNDEFINED = InternedGraphicsContext_Api_UNDEFINED;
-  static const Api OPEN_GL = InternedGraphicsContext_Api_OPEN_GL;
-  static const Api VULKAN = InternedGraphicsContext_Api_VULKAN;
-  static const Api OPEN_CL = InternedGraphicsContext_Api_OPEN_CL;
-
-  using FieldMetadata_Iid =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      InternedGraphicsContext>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Iid kIid() { return {}; }
-  void set_iid(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Iid::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Pid =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt32,
-      int32_t,
-      InternedGraphicsContext>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Pid kPid() { return {}; }
-  void set_pid(int32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Pid::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Api =
-    ::protozero::proto_utils::FieldMetadata<
-      3,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kEnum,
-      ::perfetto::protos::pbzero::InternedGraphicsContext_Api,
-      InternedGraphicsContext>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Api kApi() { return {}; }
-  void set_api(::perfetto::protos::pbzero::InternedGraphicsContext_Api value) {
-    static constexpr uint32_t field_id = FieldMetadata_Api::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kEnum>
-        ::Append(*this, field_id, value);
-  }
-};
-
-class GpuRenderStageEvent_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/15, /*HAS_NONPACKED_REPEATED_FIELDS=*/true> {
- public:
-  GpuRenderStageEvent_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit GpuRenderStageEvent_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit GpuRenderStageEvent_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_event_id() const { return at<1>().valid(); }
-  uint64_t event_id() const { return at<1>().as_uint64(); }
-  bool has_duration() const { return at<2>().valid(); }
-  uint64_t duration() const { return at<2>().as_uint64(); }
-  bool has_hw_queue_iid() const { return at<13>().valid(); }
-  uint64_t hw_queue_iid() const { return at<13>().as_uint64(); }
-  bool has_stage_iid() const { return at<14>().valid(); }
-  uint64_t stage_iid() const { return at<14>().as_uint64(); }
-  bool has_gpu_id() const { return at<11>().valid(); }
-  int32_t gpu_id() const { return at<11>().as_int32(); }
-  bool has_context() const { return at<5>().valid(); }
-  uint64_t context() const { return at<5>().as_uint64(); }
-  bool has_render_target_handle() const { return at<8>().valid(); }
-  uint64_t render_target_handle() const { return at<8>().as_uint64(); }
-  bool has_submission_id() const { return at<10>().valid(); }
-  uint32_t submission_id() const { return at<10>().as_uint32(); }
-  bool has_extra_data() const { return at<6>().valid(); }
-  ::protozero::RepeatedFieldIterator<::protozero::ConstBytes> extra_data() const { return GetRepeated<::protozero::ConstBytes>(6); }
-  bool has_render_pass_handle() const { return at<9>().valid(); }
-  uint64_t render_pass_handle() const { return at<9>().as_uint64(); }
-  bool has_render_subpass_index_mask() const { return at<15>().valid(); }
-  ::protozero::RepeatedFieldIterator<uint64_t> render_subpass_index_mask() const { return GetRepeated<uint64_t>(15); }
-  bool has_command_buffer_handle() const { return at<12>().valid(); }
-  uint64_t command_buffer_handle() const { return at<12>().as_uint64(); }
-  bool has_specifications() const { return at<7>().valid(); }
-  ::protozero::ConstBytes specifications() const { return at<7>().as_bytes(); }
-  bool has_hw_queue_id() const { return at<3>().valid(); }
-  int32_t hw_queue_id() const { return at<3>().as_int32(); }
-  bool has_stage_id() const { return at<4>().valid(); }
-  int32_t stage_id() const { return at<4>().as_int32(); }
-};
-
-class GpuRenderStageEvent : public ::protozero::Message {
- public:
-  using Decoder = GpuRenderStageEvent_Decoder;
-  enum : int32_t {
-    kEventIdFieldNumber = 1,
-    kDurationFieldNumber = 2,
-    kHwQueueIidFieldNumber = 13,
-    kStageIidFieldNumber = 14,
-    kGpuIdFieldNumber = 11,
-    kContextFieldNumber = 5,
-    kRenderTargetHandleFieldNumber = 8,
-    kSubmissionIdFieldNumber = 10,
-    kExtraDataFieldNumber = 6,
-    kRenderPassHandleFieldNumber = 9,
-    kRenderSubpassIndexMaskFieldNumber = 15,
-    kCommandBufferHandleFieldNumber = 12,
-    kSpecificationsFieldNumber = 7,
-    kHwQueueIdFieldNumber = 3,
-    kStageIdFieldNumber = 4,
-  };
-  using ExtraData = ::perfetto::protos::pbzero::GpuRenderStageEvent_ExtraData;
-  using Specifications = ::perfetto::protos::pbzero::GpuRenderStageEvent_Specifications;
-
-  using FieldMetadata_EventId =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      GpuRenderStageEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_EventId kEventId() { return {}; }
-  void set_event_id(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_EventId::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Duration =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      GpuRenderStageEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Duration kDuration() { return {}; }
-  void set_duration(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Duration::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_HwQueueIid =
-    ::protozero::proto_utils::FieldMetadata<
-      13,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      GpuRenderStageEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_HwQueueIid kHwQueueIid() { return {}; }
-  void set_hw_queue_iid(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_HwQueueIid::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_StageIid =
-    ::protozero::proto_utils::FieldMetadata<
-      14,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      GpuRenderStageEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_StageIid kStageIid() { return {}; }
-  void set_stage_iid(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_StageIid::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_GpuId =
-    ::protozero::proto_utils::FieldMetadata<
-      11,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt32,
-      int32_t,
-      GpuRenderStageEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_GpuId kGpuId() { return {}; }
-  void set_gpu_id(int32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_GpuId::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Context =
-    ::protozero::proto_utils::FieldMetadata<
-      5,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      GpuRenderStageEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Context kContext() { return {}; }
-  void set_context(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Context::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_RenderTargetHandle =
-    ::protozero::proto_utils::FieldMetadata<
-      8,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      GpuRenderStageEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_RenderTargetHandle kRenderTargetHandle() { return {}; }
-  void set_render_target_handle(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_RenderTargetHandle::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_SubmissionId =
-    ::protozero::proto_utils::FieldMetadata<
-      10,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      GpuRenderStageEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_SubmissionId kSubmissionId() { return {}; }
-  void set_submission_id(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_SubmissionId::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_ExtraData =
-    ::protozero::proto_utils::FieldMetadata<
-      6,
-      ::protozero::proto_utils::RepetitionType::kRepeatedNotPacked,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      GpuRenderStageEvent_ExtraData,
-      GpuRenderStageEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_ExtraData kExtraData() { return {}; }
-  template <typename T = GpuRenderStageEvent_ExtraData> T* add_extra_data() {
-    return BeginNestedMessage<T>(6);
-  }
-
-
-  using FieldMetadata_RenderPassHandle =
-    ::protozero::proto_utils::FieldMetadata<
-      9,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      GpuRenderStageEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_RenderPassHandle kRenderPassHandle() { return {}; }
-  void set_render_pass_handle(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_RenderPassHandle::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_RenderSubpassIndexMask =
-    ::protozero::proto_utils::FieldMetadata<
-      15,
-      ::protozero::proto_utils::RepetitionType::kRepeatedNotPacked,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      GpuRenderStageEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_RenderSubpassIndexMask kRenderSubpassIndexMask() { return {}; }
-  void add_render_subpass_index_mask(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_RenderSubpassIndexMask::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_CommandBufferHandle =
-    ::protozero::proto_utils::FieldMetadata<
-      12,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      GpuRenderStageEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_CommandBufferHandle kCommandBufferHandle() { return {}; }
-  void set_command_buffer_handle(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_CommandBufferHandle::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Specifications =
-    ::protozero::proto_utils::FieldMetadata<
-      7,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      GpuRenderStageEvent_Specifications,
-      GpuRenderStageEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Specifications kSpecifications() { return {}; }
-  template <typename T = GpuRenderStageEvent_Specifications> T* set_specifications() {
-    return BeginNestedMessage<T>(7);
-  }
-
-
-  using FieldMetadata_HwQueueId =
-    ::protozero::proto_utils::FieldMetadata<
-      3,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt32,
-      int32_t,
-      GpuRenderStageEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_HwQueueId kHwQueueId() { return {}; }
-  void set_hw_queue_id(int32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_HwQueueId::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_StageId =
-    ::protozero::proto_utils::FieldMetadata<
-      4,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt32,
-      int32_t,
-      GpuRenderStageEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_StageId kStageId() { return {}; }
-  void set_stage_id(int32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_StageId::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt32>
-        ::Append(*this, field_id, value);
-  }
-};
-
-class GpuRenderStageEvent_Specifications_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/3, /*HAS_NONPACKED_REPEATED_FIELDS=*/true> {
- public:
-  GpuRenderStageEvent_Specifications_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit GpuRenderStageEvent_Specifications_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit GpuRenderStageEvent_Specifications_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_context_spec() const { return at<1>().valid(); }
-  ::protozero::ConstBytes context_spec() const { return at<1>().as_bytes(); }
-  bool has_hw_queue() const { return at<2>().valid(); }
-  ::protozero::RepeatedFieldIterator<::protozero::ConstBytes> hw_queue() const { return GetRepeated<::protozero::ConstBytes>(2); }
-  bool has_stage() const { return at<3>().valid(); }
-  ::protozero::RepeatedFieldIterator<::protozero::ConstBytes> stage() const { return GetRepeated<::protozero::ConstBytes>(3); }
-};
-
-class GpuRenderStageEvent_Specifications : public ::protozero::Message {
- public:
-  using Decoder = GpuRenderStageEvent_Specifications_Decoder;
-  enum : int32_t {
-    kContextSpecFieldNumber = 1,
-    kHwQueueFieldNumber = 2,
-    kStageFieldNumber = 3,
-  };
-  using ContextSpec = ::perfetto::protos::pbzero::GpuRenderStageEvent_Specifications_ContextSpec;
-  using Description = ::perfetto::protos::pbzero::GpuRenderStageEvent_Specifications_Description;
-
-  using FieldMetadata_ContextSpec =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      GpuRenderStageEvent_Specifications_ContextSpec,
-      GpuRenderStageEvent_Specifications>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_ContextSpec kContextSpec() { return {}; }
-  template <typename T = GpuRenderStageEvent_Specifications_ContextSpec> T* set_context_spec() {
-    return BeginNestedMessage<T>(1);
-  }
-
-
-  using FieldMetadata_HwQueue =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kRepeatedNotPacked,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      GpuRenderStageEvent_Specifications_Description,
-      GpuRenderStageEvent_Specifications>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_HwQueue kHwQueue() { return {}; }
-  template <typename T = GpuRenderStageEvent_Specifications_Description> T* add_hw_queue() {
-    return BeginNestedMessage<T>(2);
-  }
-
-
-  using FieldMetadata_Stage =
-    ::protozero::proto_utils::FieldMetadata<
-      3,
-      ::protozero::proto_utils::RepetitionType::kRepeatedNotPacked,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      GpuRenderStageEvent_Specifications_Description,
-      GpuRenderStageEvent_Specifications>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Stage kStage() { return {}; }
-  template <typename T = GpuRenderStageEvent_Specifications_Description> T* add_stage() {
-    return BeginNestedMessage<T>(3);
-  }
-
-};
-
-class GpuRenderStageEvent_Specifications_Description_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/2, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  GpuRenderStageEvent_Specifications_Description_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit GpuRenderStageEvent_Specifications_Description_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit GpuRenderStageEvent_Specifications_Description_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_name() const { return at<1>().valid(); }
-  ::protozero::ConstChars name() const { return at<1>().as_string(); }
-  bool has_description() const { return at<2>().valid(); }
-  ::protozero::ConstChars description() const { return at<2>().as_string(); }
-};
-
-class GpuRenderStageEvent_Specifications_Description : public ::protozero::Message {
- public:
-  using Decoder = GpuRenderStageEvent_Specifications_Description_Decoder;
-  enum : int32_t {
-    kNameFieldNumber = 1,
-    kDescriptionFieldNumber = 2,
-  };
-
-  using FieldMetadata_Name =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kString,
-      std::string,
-      GpuRenderStageEvent_Specifications_Description>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Name kName() { return {}; }
-  void set_name(const char* data, size_t size) {
-    AppendBytes(FieldMetadata_Name::kFieldId, data, size);
-  }
-  void set_name(std::string value) {
-    static constexpr uint32_t field_id = FieldMetadata_Name::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kString>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Description =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kString,
-      std::string,
-      GpuRenderStageEvent_Specifications_Description>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Description kDescription() { return {}; }
-  void set_description(const char* data, size_t size) {
-    AppendBytes(FieldMetadata_Description::kFieldId, data, size);
-  }
-  void set_description(std::string value) {
-    static constexpr uint32_t field_id = FieldMetadata_Description::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kString>
-        ::Append(*this, field_id, value);
-  }
-};
-
-class GpuRenderStageEvent_Specifications_ContextSpec_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/2, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  GpuRenderStageEvent_Specifications_ContextSpec_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit GpuRenderStageEvent_Specifications_ContextSpec_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit GpuRenderStageEvent_Specifications_ContextSpec_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_context() const { return at<1>().valid(); }
-  uint64_t context() const { return at<1>().as_uint64(); }
-  bool has_pid() const { return at<2>().valid(); }
-  int32_t pid() const { return at<2>().as_int32(); }
-};
-
-class GpuRenderStageEvent_Specifications_ContextSpec : public ::protozero::Message {
- public:
-  using Decoder = GpuRenderStageEvent_Specifications_ContextSpec_Decoder;
-  enum : int32_t {
-    kContextFieldNumber = 1,
-    kPidFieldNumber = 2,
-  };
-
-  using FieldMetadata_Context =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      GpuRenderStageEvent_Specifications_ContextSpec>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Context kContext() { return {}; }
-  void set_context(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Context::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Pid =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt32,
-      int32_t,
-      GpuRenderStageEvent_Specifications_ContextSpec>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Pid kPid() { return {}; }
-  void set_pid(int32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Pid::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt32>
-        ::Append(*this, field_id, value);
-  }
-};
-
-class GpuRenderStageEvent_ExtraData_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/2, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  GpuRenderStageEvent_ExtraData_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit GpuRenderStageEvent_ExtraData_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit GpuRenderStageEvent_ExtraData_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_name() const { return at<1>().valid(); }
-  ::protozero::ConstChars name() const { return at<1>().as_string(); }
-  bool has_value() const { return at<2>().valid(); }
-  ::protozero::ConstChars value() const { return at<2>().as_string(); }
-};
-
-class GpuRenderStageEvent_ExtraData : public ::protozero::Message {
- public:
-  using Decoder = GpuRenderStageEvent_ExtraData_Decoder;
-  enum : int32_t {
-    kNameFieldNumber = 1,
-    kValueFieldNumber = 2,
-  };
-
-  using FieldMetadata_Name =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kString,
-      std::string,
-      GpuRenderStageEvent_ExtraData>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Name kName() { return {}; }
-  void set_name(const char* data, size_t size) {
-    AppendBytes(FieldMetadata_Name::kFieldId, data, size);
-  }
-  void set_name(std::string value) {
-    static constexpr uint32_t field_id = FieldMetadata_Name::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kString>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Value =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kString,
-      std::string,
-      GpuRenderStageEvent_ExtraData>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Value kValue() { return {}; }
-  void set_value(const char* data, size_t size) {
-    AppendBytes(FieldMetadata_Value::kFieldId, data, size);
-  }
-  void set_value(std::string value) {
-    static constexpr uint32_t field_id = FieldMetadata_Value::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kString>
-        ::Append(*this, field_id, value);
-  }
-};
-
-} // Namespace.
-} // Namespace.
-} // Namespace.
-#endif  // Include guard.
-// gen_amalgamated begin header: gen/protos/perfetto/trace/gpu/vulkan_api_event.pbzero.h
-// Autogenerated by the ProtoZero compiler plugin. DO NOT EDIT.
-
-#ifndef PERFETTO_PROTOS_PROTOS_PERFETTO_TRACE_GPU_VULKAN_API_EVENT_PROTO_H_
-#define PERFETTO_PROTOS_PROTOS_PERFETTO_TRACE_GPU_VULKAN_API_EVENT_PROTO_H_
-
-#include <stddef.h>
-#include <stdint.h>
-
-// gen_amalgamated expanded: #include "perfetto/protozero/field_writer.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/message.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/packed_repeated_fields.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/proto_decoder.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/proto_utils.h"
-
-namespace perfetto {
-namespace protos {
-namespace pbzero {
-
-class VulkanApiEvent_VkDebugUtilsObjectName;
-class VulkanApiEvent_VkQueueSubmit;
-
-class VulkanApiEvent_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/2, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  VulkanApiEvent_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit VulkanApiEvent_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit VulkanApiEvent_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_vk_debug_utils_object_name() const { return at<1>().valid(); }
-  ::protozero::ConstBytes vk_debug_utils_object_name() const { return at<1>().as_bytes(); }
-  bool has_vk_queue_submit() const { return at<2>().valid(); }
-  ::protozero::ConstBytes vk_queue_submit() const { return at<2>().as_bytes(); }
-};
-
-class VulkanApiEvent : public ::protozero::Message {
- public:
-  using Decoder = VulkanApiEvent_Decoder;
-  enum : int32_t {
-    kVkDebugUtilsObjectNameFieldNumber = 1,
-    kVkQueueSubmitFieldNumber = 2,
-  };
-  using VkDebugUtilsObjectName = ::perfetto::protos::pbzero::VulkanApiEvent_VkDebugUtilsObjectName;
-  using VkQueueSubmit = ::perfetto::protos::pbzero::VulkanApiEvent_VkQueueSubmit;
-
-  using FieldMetadata_VkDebugUtilsObjectName =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      VulkanApiEvent_VkDebugUtilsObjectName,
-      VulkanApiEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_VkDebugUtilsObjectName kVkDebugUtilsObjectName() { return {}; }
-  template <typename T = VulkanApiEvent_VkDebugUtilsObjectName> T* set_vk_debug_utils_object_name() {
-    return BeginNestedMessage<T>(1);
-  }
-
-
-  using FieldMetadata_VkQueueSubmit =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      VulkanApiEvent_VkQueueSubmit,
-      VulkanApiEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_VkQueueSubmit kVkQueueSubmit() { return {}; }
-  template <typename T = VulkanApiEvent_VkQueueSubmit> T* set_vk_queue_submit() {
-    return BeginNestedMessage<T>(2);
-  }
-
-};
-
-class VulkanApiEvent_VkQueueSubmit_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/6, /*HAS_NONPACKED_REPEATED_FIELDS=*/true> {
- public:
-  VulkanApiEvent_VkQueueSubmit_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit VulkanApiEvent_VkQueueSubmit_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit VulkanApiEvent_VkQueueSubmit_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_duration_ns() const { return at<1>().valid(); }
-  uint64_t duration_ns() const { return at<1>().as_uint64(); }
-  bool has_pid() const { return at<2>().valid(); }
-  uint32_t pid() const { return at<2>().as_uint32(); }
-  bool has_tid() const { return at<3>().valid(); }
-  uint32_t tid() const { return at<3>().as_uint32(); }
-  bool has_vk_queue() const { return at<4>().valid(); }
-  uint64_t vk_queue() const { return at<4>().as_uint64(); }
-  bool has_vk_command_buffers() const { return at<5>().valid(); }
-  ::protozero::RepeatedFieldIterator<uint64_t> vk_command_buffers() const { return GetRepeated<uint64_t>(5); }
-  bool has_submission_id() const { return at<6>().valid(); }
-  uint32_t submission_id() const { return at<6>().as_uint32(); }
-};
-
-class VulkanApiEvent_VkQueueSubmit : public ::protozero::Message {
- public:
-  using Decoder = VulkanApiEvent_VkQueueSubmit_Decoder;
-  enum : int32_t {
-    kDurationNsFieldNumber = 1,
-    kPidFieldNumber = 2,
-    kTidFieldNumber = 3,
-    kVkQueueFieldNumber = 4,
-    kVkCommandBuffersFieldNumber = 5,
-    kSubmissionIdFieldNumber = 6,
-  };
-
-  using FieldMetadata_DurationNs =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      VulkanApiEvent_VkQueueSubmit>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_DurationNs kDurationNs() { return {}; }
-  void set_duration_ns(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_DurationNs::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Pid =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      VulkanApiEvent_VkQueueSubmit>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Pid kPid() { return {}; }
-  void set_pid(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Pid::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Tid =
-    ::protozero::proto_utils::FieldMetadata<
-      3,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      VulkanApiEvent_VkQueueSubmit>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Tid kTid() { return {}; }
-  void set_tid(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Tid::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_VkQueue =
-    ::protozero::proto_utils::FieldMetadata<
-      4,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      VulkanApiEvent_VkQueueSubmit>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_VkQueue kVkQueue() { return {}; }
-  void set_vk_queue(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_VkQueue::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_VkCommandBuffers =
-    ::protozero::proto_utils::FieldMetadata<
-      5,
-      ::protozero::proto_utils::RepetitionType::kRepeatedNotPacked,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      VulkanApiEvent_VkQueueSubmit>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_VkCommandBuffers kVkCommandBuffers() { return {}; }
-  void add_vk_command_buffers(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_VkCommandBuffers::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_SubmissionId =
-    ::protozero::proto_utils::FieldMetadata<
-      6,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      VulkanApiEvent_VkQueueSubmit>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_SubmissionId kSubmissionId() { return {}; }
-  void set_submission_id(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_SubmissionId::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-};
-
-class VulkanApiEvent_VkDebugUtilsObjectName_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/5, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  VulkanApiEvent_VkDebugUtilsObjectName_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit VulkanApiEvent_VkDebugUtilsObjectName_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit VulkanApiEvent_VkDebugUtilsObjectName_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_pid() const { return at<1>().valid(); }
-  uint32_t pid() const { return at<1>().as_uint32(); }
-  bool has_vk_device() const { return at<2>().valid(); }
-  uint64_t vk_device() const { return at<2>().as_uint64(); }
-  bool has_object_type() const { return at<3>().valid(); }
-  int32_t object_type() const { return at<3>().as_int32(); }
-  bool has_object() const { return at<4>().valid(); }
-  uint64_t object() const { return at<4>().as_uint64(); }
-  bool has_object_name() const { return at<5>().valid(); }
-  ::protozero::ConstChars object_name() const { return at<5>().as_string(); }
-};
-
-class VulkanApiEvent_VkDebugUtilsObjectName : public ::protozero::Message {
- public:
-  using Decoder = VulkanApiEvent_VkDebugUtilsObjectName_Decoder;
-  enum : int32_t {
-    kPidFieldNumber = 1,
-    kVkDeviceFieldNumber = 2,
-    kObjectTypeFieldNumber = 3,
-    kObjectFieldNumber = 4,
-    kObjectNameFieldNumber = 5,
-  };
-
-  using FieldMetadata_Pid =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      VulkanApiEvent_VkDebugUtilsObjectName>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Pid kPid() { return {}; }
-  void set_pid(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Pid::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_VkDevice =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      VulkanApiEvent_VkDebugUtilsObjectName>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_VkDevice kVkDevice() { return {}; }
-  void set_vk_device(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_VkDevice::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_ObjectType =
-    ::protozero::proto_utils::FieldMetadata<
-      3,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt32,
-      int32_t,
-      VulkanApiEvent_VkDebugUtilsObjectName>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_ObjectType kObjectType() { return {}; }
-  void set_object_type(int32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_ObjectType::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Object =
-    ::protozero::proto_utils::FieldMetadata<
-      4,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      VulkanApiEvent_VkDebugUtilsObjectName>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Object kObject() { return {}; }
-  void set_object(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Object::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_ObjectName =
-    ::protozero::proto_utils::FieldMetadata<
-      5,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kString,
-      std::string,
-      VulkanApiEvent_VkDebugUtilsObjectName>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_ObjectName kObjectName() { return {}; }
-  void set_object_name(const char* data, size_t size) {
-    AppendBytes(FieldMetadata_ObjectName::kFieldId, data, size);
-  }
-  void set_object_name(std::string value) {
-    static constexpr uint32_t field_id = FieldMetadata_ObjectName::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kString>
-        ::Append(*this, field_id, value);
-  }
-};
-
-} // Namespace.
-} // Namespace.
-} // Namespace.
-#endif  // Include guard.
-// gen_amalgamated begin header: gen/protos/perfetto/trace/gpu/vulkan_memory_event.pbzero.h
-// Autogenerated by the ProtoZero compiler plugin. DO NOT EDIT.
-
-#ifndef PERFETTO_PROTOS_PROTOS_PERFETTO_TRACE_GPU_VULKAN_MEMORY_EVENT_PROTO_H_
-#define PERFETTO_PROTOS_PROTOS_PERFETTO_TRACE_GPU_VULKAN_MEMORY_EVENT_PROTO_H_
-
-#include <stddef.h>
-#include <stdint.h>
-
-// gen_amalgamated expanded: #include "perfetto/protozero/field_writer.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/message.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/packed_repeated_fields.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/proto_decoder.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/proto_utils.h"
-
-namespace perfetto {
-namespace protos {
-namespace pbzero {
-
-class VulkanMemoryEventAnnotation;
-enum VulkanMemoryEvent_AllocationScope : int32_t;
-enum VulkanMemoryEvent_Operation : int32_t;
-enum VulkanMemoryEvent_Source : int32_t;
-
-enum VulkanMemoryEvent_Source : int32_t {
-  VulkanMemoryEvent_Source_SOURCE_UNSPECIFIED = 0,
-  VulkanMemoryEvent_Source_SOURCE_DRIVER = 1,
-  VulkanMemoryEvent_Source_SOURCE_DEVICE = 2,
-  VulkanMemoryEvent_Source_SOURCE_DEVICE_MEMORY = 3,
-  VulkanMemoryEvent_Source_SOURCE_BUFFER = 4,
-  VulkanMemoryEvent_Source_SOURCE_IMAGE = 5,
-};
-
-const VulkanMemoryEvent_Source VulkanMemoryEvent_Source_MIN = VulkanMemoryEvent_Source_SOURCE_UNSPECIFIED;
-const VulkanMemoryEvent_Source VulkanMemoryEvent_Source_MAX = VulkanMemoryEvent_Source_SOURCE_IMAGE;
-
-enum VulkanMemoryEvent_Operation : int32_t {
-  VulkanMemoryEvent_Operation_OP_UNSPECIFIED = 0,
-  VulkanMemoryEvent_Operation_OP_CREATE = 1,
-  VulkanMemoryEvent_Operation_OP_DESTROY = 2,
-  VulkanMemoryEvent_Operation_OP_BIND = 3,
-  VulkanMemoryEvent_Operation_OP_DESTROY_BOUND = 4,
-  VulkanMemoryEvent_Operation_OP_ANNOTATIONS = 5,
-};
-
-const VulkanMemoryEvent_Operation VulkanMemoryEvent_Operation_MIN = VulkanMemoryEvent_Operation_OP_UNSPECIFIED;
-const VulkanMemoryEvent_Operation VulkanMemoryEvent_Operation_MAX = VulkanMemoryEvent_Operation_OP_ANNOTATIONS;
-
-enum VulkanMemoryEvent_AllocationScope : int32_t {
-  VulkanMemoryEvent_AllocationScope_SCOPE_UNSPECIFIED = 0,
-  VulkanMemoryEvent_AllocationScope_SCOPE_COMMAND = 1,
-  VulkanMemoryEvent_AllocationScope_SCOPE_OBJECT = 2,
-  VulkanMemoryEvent_AllocationScope_SCOPE_CACHE = 3,
-  VulkanMemoryEvent_AllocationScope_SCOPE_DEVICE = 4,
-  VulkanMemoryEvent_AllocationScope_SCOPE_INSTANCE = 5,
-};
-
-const VulkanMemoryEvent_AllocationScope VulkanMemoryEvent_AllocationScope_MIN = VulkanMemoryEvent_AllocationScope_SCOPE_UNSPECIFIED;
-const VulkanMemoryEvent_AllocationScope VulkanMemoryEvent_AllocationScope_MAX = VulkanMemoryEvent_AllocationScope_SCOPE_INSTANCE;
-
-class VulkanMemoryEvent_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/20, /*HAS_NONPACKED_REPEATED_FIELDS=*/true> {
- public:
-  VulkanMemoryEvent_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit VulkanMemoryEvent_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit VulkanMemoryEvent_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_source() const { return at<1>().valid(); }
-  int32_t source() const { return at<1>().as_int32(); }
-  bool has_operation() const { return at<2>().valid(); }
-  int32_t operation() const { return at<2>().as_int32(); }
-  bool has_timestamp() const { return at<3>().valid(); }
-  int64_t timestamp() const { return at<3>().as_int64(); }
-  bool has_pid() const { return at<4>().valid(); }
-  uint32_t pid() const { return at<4>().as_uint32(); }
-  bool has_memory_address() const { return at<5>().valid(); }
-  uint64_t memory_address() const { return at<5>().as_uint64(); }
-  bool has_memory_size() const { return at<6>().valid(); }
-  uint64_t memory_size() const { return at<6>().as_uint64(); }
-  bool has_caller_iid() const { return at<7>().valid(); }
-  uint64_t caller_iid() const { return at<7>().as_uint64(); }
-  bool has_allocation_scope() const { return at<8>().valid(); }
-  int32_t allocation_scope() const { return at<8>().as_int32(); }
-  bool has_annotations() const { return at<9>().valid(); }
-  ::protozero::RepeatedFieldIterator<::protozero::ConstBytes> annotations() const { return GetRepeated<::protozero::ConstBytes>(9); }
-  bool has_device() const { return at<16>().valid(); }
-  uint64_t device() const { return at<16>().as_uint64(); }
-  bool has_device_memory() const { return at<17>().valid(); }
-  uint64_t device_memory() const { return at<17>().as_uint64(); }
-  bool has_memory_type() const { return at<18>().valid(); }
-  uint32_t memory_type() const { return at<18>().as_uint32(); }
-  bool has_heap() const { return at<19>().valid(); }
-  uint32_t heap() const { return at<19>().as_uint32(); }
-  bool has_object_handle() const { return at<20>().valid(); }
-  uint64_t object_handle() const { return at<20>().as_uint64(); }
-};
-
-class VulkanMemoryEvent : public ::protozero::Message {
- public:
-  using Decoder = VulkanMemoryEvent_Decoder;
-  enum : int32_t {
-    kSourceFieldNumber = 1,
-    kOperationFieldNumber = 2,
-    kTimestampFieldNumber = 3,
-    kPidFieldNumber = 4,
-    kMemoryAddressFieldNumber = 5,
-    kMemorySizeFieldNumber = 6,
-    kCallerIidFieldNumber = 7,
-    kAllocationScopeFieldNumber = 8,
-    kAnnotationsFieldNumber = 9,
-    kDeviceFieldNumber = 16,
-    kDeviceMemoryFieldNumber = 17,
-    kMemoryTypeFieldNumber = 18,
-    kHeapFieldNumber = 19,
-    kObjectHandleFieldNumber = 20,
-  };
-  using Source = ::perfetto::protos::pbzero::VulkanMemoryEvent_Source;
-  using Operation = ::perfetto::protos::pbzero::VulkanMemoryEvent_Operation;
-  using AllocationScope = ::perfetto::protos::pbzero::VulkanMemoryEvent_AllocationScope;
-  static const Source SOURCE_UNSPECIFIED = VulkanMemoryEvent_Source_SOURCE_UNSPECIFIED;
-  static const Source SOURCE_DRIVER = VulkanMemoryEvent_Source_SOURCE_DRIVER;
-  static const Source SOURCE_DEVICE = VulkanMemoryEvent_Source_SOURCE_DEVICE;
-  static const Source SOURCE_DEVICE_MEMORY = VulkanMemoryEvent_Source_SOURCE_DEVICE_MEMORY;
-  static const Source SOURCE_BUFFER = VulkanMemoryEvent_Source_SOURCE_BUFFER;
-  static const Source SOURCE_IMAGE = VulkanMemoryEvent_Source_SOURCE_IMAGE;
-  static const Operation OP_UNSPECIFIED = VulkanMemoryEvent_Operation_OP_UNSPECIFIED;
-  static const Operation OP_CREATE = VulkanMemoryEvent_Operation_OP_CREATE;
-  static const Operation OP_DESTROY = VulkanMemoryEvent_Operation_OP_DESTROY;
-  static const Operation OP_BIND = VulkanMemoryEvent_Operation_OP_BIND;
-  static const Operation OP_DESTROY_BOUND = VulkanMemoryEvent_Operation_OP_DESTROY_BOUND;
-  static const Operation OP_ANNOTATIONS = VulkanMemoryEvent_Operation_OP_ANNOTATIONS;
-  static const AllocationScope SCOPE_UNSPECIFIED = VulkanMemoryEvent_AllocationScope_SCOPE_UNSPECIFIED;
-  static const AllocationScope SCOPE_COMMAND = VulkanMemoryEvent_AllocationScope_SCOPE_COMMAND;
-  static const AllocationScope SCOPE_OBJECT = VulkanMemoryEvent_AllocationScope_SCOPE_OBJECT;
-  static const AllocationScope SCOPE_CACHE = VulkanMemoryEvent_AllocationScope_SCOPE_CACHE;
-  static const AllocationScope SCOPE_DEVICE = VulkanMemoryEvent_AllocationScope_SCOPE_DEVICE;
-  static const AllocationScope SCOPE_INSTANCE = VulkanMemoryEvent_AllocationScope_SCOPE_INSTANCE;
-
-  using FieldMetadata_Source =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kEnum,
-      ::perfetto::protos::pbzero::VulkanMemoryEvent_Source,
-      VulkanMemoryEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Source kSource() { return {}; }
-  void set_source(::perfetto::protos::pbzero::VulkanMemoryEvent_Source value) {
-    static constexpr uint32_t field_id = FieldMetadata_Source::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kEnum>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Operation =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kEnum,
-      ::perfetto::protos::pbzero::VulkanMemoryEvent_Operation,
-      VulkanMemoryEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Operation kOperation() { return {}; }
-  void set_operation(::perfetto::protos::pbzero::VulkanMemoryEvent_Operation value) {
-    static constexpr uint32_t field_id = FieldMetadata_Operation::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kEnum>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Timestamp =
-    ::protozero::proto_utils::FieldMetadata<
-      3,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt64,
-      int64_t,
-      VulkanMemoryEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Timestamp kTimestamp() { return {}; }
-  void set_timestamp(int64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Timestamp::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Pid =
-    ::protozero::proto_utils::FieldMetadata<
-      4,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      VulkanMemoryEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Pid kPid() { return {}; }
-  void set_pid(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Pid::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_MemoryAddress =
-    ::protozero::proto_utils::FieldMetadata<
-      5,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kFixed64,
-      uint64_t,
-      VulkanMemoryEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_MemoryAddress kMemoryAddress() { return {}; }
-  void set_memory_address(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_MemoryAddress::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kFixed64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_MemorySize =
-    ::protozero::proto_utils::FieldMetadata<
-      6,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      VulkanMemoryEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_MemorySize kMemorySize() { return {}; }
-  void set_memory_size(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_MemorySize::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_CallerIid =
-    ::protozero::proto_utils::FieldMetadata<
-      7,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      VulkanMemoryEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_CallerIid kCallerIid() { return {}; }
-  void set_caller_iid(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_CallerIid::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_AllocationScope =
-    ::protozero::proto_utils::FieldMetadata<
-      8,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kEnum,
-      ::perfetto::protos::pbzero::VulkanMemoryEvent_AllocationScope,
-      VulkanMemoryEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_AllocationScope kAllocationScope() { return {}; }
-  void set_allocation_scope(::perfetto::protos::pbzero::VulkanMemoryEvent_AllocationScope value) {
-    static constexpr uint32_t field_id = FieldMetadata_AllocationScope::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kEnum>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Annotations =
-    ::protozero::proto_utils::FieldMetadata<
-      9,
-      ::protozero::proto_utils::RepetitionType::kRepeatedNotPacked,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      VulkanMemoryEventAnnotation,
-      VulkanMemoryEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Annotations kAnnotations() { return {}; }
-  template <typename T = VulkanMemoryEventAnnotation> T* add_annotations() {
-    return BeginNestedMessage<T>(9);
-  }
-
-
-  using FieldMetadata_Device =
-    ::protozero::proto_utils::FieldMetadata<
-      16,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kFixed64,
-      uint64_t,
-      VulkanMemoryEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Device kDevice() { return {}; }
-  void set_device(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Device::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kFixed64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_DeviceMemory =
-    ::protozero::proto_utils::FieldMetadata<
-      17,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kFixed64,
-      uint64_t,
-      VulkanMemoryEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_DeviceMemory kDeviceMemory() { return {}; }
-  void set_device_memory(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_DeviceMemory::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kFixed64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_MemoryType =
-    ::protozero::proto_utils::FieldMetadata<
-      18,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      VulkanMemoryEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_MemoryType kMemoryType() { return {}; }
-  void set_memory_type(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_MemoryType::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Heap =
-    ::protozero::proto_utils::FieldMetadata<
-      19,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      VulkanMemoryEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Heap kHeap() { return {}; }
-  void set_heap(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Heap::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_ObjectHandle =
-    ::protozero::proto_utils::FieldMetadata<
-      20,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kFixed64,
-      uint64_t,
-      VulkanMemoryEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_ObjectHandle kObjectHandle() { return {}; }
-  void set_object_handle(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_ObjectHandle::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kFixed64>
-        ::Append(*this, field_id, value);
-  }
-};
-
-class VulkanMemoryEventAnnotation_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/4, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  VulkanMemoryEventAnnotation_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit VulkanMemoryEventAnnotation_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit VulkanMemoryEventAnnotation_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_key_iid() const { return at<1>().valid(); }
-  uint64_t key_iid() const { return at<1>().as_uint64(); }
-  bool has_int_value() const { return at<2>().valid(); }
-  int64_t int_value() const { return at<2>().as_int64(); }
-  bool has_double_value() const { return at<3>().valid(); }
-  double double_value() const { return at<3>().as_double(); }
-  bool has_string_iid() const { return at<4>().valid(); }
-  uint64_t string_iid() const { return at<4>().as_uint64(); }
-};
-
-class VulkanMemoryEventAnnotation : public ::protozero::Message {
- public:
-  using Decoder = VulkanMemoryEventAnnotation_Decoder;
-  enum : int32_t {
-    kKeyIidFieldNumber = 1,
-    kIntValueFieldNumber = 2,
-    kDoubleValueFieldNumber = 3,
-    kStringIidFieldNumber = 4,
-  };
-
-  using FieldMetadata_KeyIid =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      VulkanMemoryEventAnnotation>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_KeyIid kKeyIid() { return {}; }
-  void set_key_iid(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_KeyIid::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_IntValue =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt64,
-      int64_t,
-      VulkanMemoryEventAnnotation>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_IntValue kIntValue() { return {}; }
-  void set_int_value(int64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_IntValue::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_DoubleValue =
-    ::protozero::proto_utils::FieldMetadata<
-      3,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kDouble,
-      double,
-      VulkanMemoryEventAnnotation>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_DoubleValue kDoubleValue() { return {}; }
-  void set_double_value(double value) {
-    static constexpr uint32_t field_id = FieldMetadata_DoubleValue::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kDouble>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_StringIid =
-    ::protozero::proto_utils::FieldMetadata<
-      4,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      VulkanMemoryEventAnnotation>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_StringIid kStringIid() { return {}; }
-  void set_string_iid(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_StringIid::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-};
-
-} // Namespace.
-} // Namespace.
-} // Namespace.
-#endif  // Include guard.
-// gen_amalgamated begin header: gen/protos/perfetto/trace/profiling/deobfuscation.pbzero.h
-// Autogenerated by the ProtoZero compiler plugin. DO NOT EDIT.
-
-#ifndef PERFETTO_PROTOS_PROTOS_PERFETTO_TRACE_PROFILING_DEOBFUSCATION_PROTO_H_
-#define PERFETTO_PROTOS_PROTOS_PERFETTO_TRACE_PROFILING_DEOBFUSCATION_PROTO_H_
-
-#include <stddef.h>
-#include <stdint.h>
-
-// gen_amalgamated expanded: #include "perfetto/protozero/field_writer.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/message.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/packed_repeated_fields.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/proto_decoder.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/proto_utils.h"
-
-namespace perfetto {
-namespace protos {
-namespace pbzero {
-
-class ObfuscatedClass;
-class ObfuscatedMember;
-
-class DeobfuscationMapping_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/3, /*HAS_NONPACKED_REPEATED_FIELDS=*/true> {
- public:
-  DeobfuscationMapping_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit DeobfuscationMapping_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit DeobfuscationMapping_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_package_name() const { return at<1>().valid(); }
-  ::protozero::ConstChars package_name() const { return at<1>().as_string(); }
-  bool has_version_code() const { return at<2>().valid(); }
-  int64_t version_code() const { return at<2>().as_int64(); }
-  bool has_obfuscated_classes() const { return at<3>().valid(); }
-  ::protozero::RepeatedFieldIterator<::protozero::ConstBytes> obfuscated_classes() const { return GetRepeated<::protozero::ConstBytes>(3); }
-};
-
-class DeobfuscationMapping : public ::protozero::Message {
- public:
-  using Decoder = DeobfuscationMapping_Decoder;
-  enum : int32_t {
-    kPackageNameFieldNumber = 1,
-    kVersionCodeFieldNumber = 2,
-    kObfuscatedClassesFieldNumber = 3,
-  };
-
-  using FieldMetadata_PackageName =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kString,
-      std::string,
-      DeobfuscationMapping>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_PackageName kPackageName() { return {}; }
-  void set_package_name(const char* data, size_t size) {
-    AppendBytes(FieldMetadata_PackageName::kFieldId, data, size);
-  }
-  void set_package_name(std::string value) {
-    static constexpr uint32_t field_id = FieldMetadata_PackageName::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kString>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_VersionCode =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt64,
-      int64_t,
-      DeobfuscationMapping>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_VersionCode kVersionCode() { return {}; }
-  void set_version_code(int64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_VersionCode::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_ObfuscatedClasses =
-    ::protozero::proto_utils::FieldMetadata<
-      3,
-      ::protozero::proto_utils::RepetitionType::kRepeatedNotPacked,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      ObfuscatedClass,
-      DeobfuscationMapping>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_ObfuscatedClasses kObfuscatedClasses() { return {}; }
-  template <typename T = ObfuscatedClass> T* add_obfuscated_classes() {
-    return BeginNestedMessage<T>(3);
-  }
-
-};
-
-class ObfuscatedClass_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/4, /*HAS_NONPACKED_REPEATED_FIELDS=*/true> {
- public:
-  ObfuscatedClass_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit ObfuscatedClass_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit ObfuscatedClass_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_obfuscated_name() const { return at<1>().valid(); }
-  ::protozero::ConstChars obfuscated_name() const { return at<1>().as_string(); }
-  bool has_deobfuscated_name() const { return at<2>().valid(); }
-  ::protozero::ConstChars deobfuscated_name() const { return at<2>().as_string(); }
-  bool has_obfuscated_members() const { return at<3>().valid(); }
-  ::protozero::RepeatedFieldIterator<::protozero::ConstBytes> obfuscated_members() const { return GetRepeated<::protozero::ConstBytes>(3); }
-  bool has_obfuscated_methods() const { return at<4>().valid(); }
-  ::protozero::RepeatedFieldIterator<::protozero::ConstBytes> obfuscated_methods() const { return GetRepeated<::protozero::ConstBytes>(4); }
-};
-
-class ObfuscatedClass : public ::protozero::Message {
- public:
-  using Decoder = ObfuscatedClass_Decoder;
-  enum : int32_t {
-    kObfuscatedNameFieldNumber = 1,
-    kDeobfuscatedNameFieldNumber = 2,
-    kObfuscatedMembersFieldNumber = 3,
-    kObfuscatedMethodsFieldNumber = 4,
-  };
-
-  using FieldMetadata_ObfuscatedName =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kString,
-      std::string,
-      ObfuscatedClass>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_ObfuscatedName kObfuscatedName() { return {}; }
-  void set_obfuscated_name(const char* data, size_t size) {
-    AppendBytes(FieldMetadata_ObfuscatedName::kFieldId, data, size);
-  }
-  void set_obfuscated_name(std::string value) {
-    static constexpr uint32_t field_id = FieldMetadata_ObfuscatedName::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kString>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_DeobfuscatedName =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kString,
-      std::string,
-      ObfuscatedClass>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_DeobfuscatedName kDeobfuscatedName() { return {}; }
-  void set_deobfuscated_name(const char* data, size_t size) {
-    AppendBytes(FieldMetadata_DeobfuscatedName::kFieldId, data, size);
-  }
-  void set_deobfuscated_name(std::string value) {
-    static constexpr uint32_t field_id = FieldMetadata_DeobfuscatedName::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kString>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_ObfuscatedMembers =
-    ::protozero::proto_utils::FieldMetadata<
-      3,
-      ::protozero::proto_utils::RepetitionType::kRepeatedNotPacked,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      ObfuscatedMember,
-      ObfuscatedClass>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_ObfuscatedMembers kObfuscatedMembers() { return {}; }
-  template <typename T = ObfuscatedMember> T* add_obfuscated_members() {
-    return BeginNestedMessage<T>(3);
-  }
-
-
-  using FieldMetadata_ObfuscatedMethods =
-    ::protozero::proto_utils::FieldMetadata<
-      4,
-      ::protozero::proto_utils::RepetitionType::kRepeatedNotPacked,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      ObfuscatedMember,
-      ObfuscatedClass>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_ObfuscatedMethods kObfuscatedMethods() { return {}; }
-  template <typename T = ObfuscatedMember> T* add_obfuscated_methods() {
-    return BeginNestedMessage<T>(4);
-  }
-
-};
-
-class ObfuscatedMember_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/2, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  ObfuscatedMember_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit ObfuscatedMember_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit ObfuscatedMember_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_obfuscated_name() const { return at<1>().valid(); }
-  ::protozero::ConstChars obfuscated_name() const { return at<1>().as_string(); }
-  bool has_deobfuscated_name() const { return at<2>().valid(); }
-  ::protozero::ConstChars deobfuscated_name() const { return at<2>().as_string(); }
-};
-
-class ObfuscatedMember : public ::protozero::Message {
- public:
-  using Decoder = ObfuscatedMember_Decoder;
-  enum : int32_t {
-    kObfuscatedNameFieldNumber = 1,
-    kDeobfuscatedNameFieldNumber = 2,
-  };
-
-  using FieldMetadata_ObfuscatedName =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kString,
-      std::string,
-      ObfuscatedMember>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_ObfuscatedName kObfuscatedName() { return {}; }
-  void set_obfuscated_name(const char* data, size_t size) {
-    AppendBytes(FieldMetadata_ObfuscatedName::kFieldId, data, size);
-  }
-  void set_obfuscated_name(std::string value) {
-    static constexpr uint32_t field_id = FieldMetadata_ObfuscatedName::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kString>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_DeobfuscatedName =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kString,
-      std::string,
-      ObfuscatedMember>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_DeobfuscatedName kDeobfuscatedName() { return {}; }
-  void set_deobfuscated_name(const char* data, size_t size) {
-    AppendBytes(FieldMetadata_DeobfuscatedName::kFieldId, data, size);
-  }
-  void set_deobfuscated_name(std::string value) {
-    static constexpr uint32_t field_id = FieldMetadata_DeobfuscatedName::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kString>
-        ::Append(*this, field_id, value);
-  }
-};
-
-} // Namespace.
-} // Namespace.
-} // Namespace.
-#endif  // Include guard.
-// gen_amalgamated begin header: gen/protos/perfetto/trace/profiling/heap_graph.pbzero.h
-// gen_amalgamated begin header: gen/protos/perfetto/trace/profiling/deobfuscation.pbzero.h
-// Autogenerated by the ProtoZero compiler plugin. DO NOT EDIT.
-
-#ifndef PERFETTO_PROTOS_PROTOS_PERFETTO_TRACE_PROFILING_DEOBFUSCATION_PROTO_H_
-#define PERFETTO_PROTOS_PROTOS_PERFETTO_TRACE_PROFILING_DEOBFUSCATION_PROTO_H_
-
-#include <stddef.h>
-#include <stdint.h>
-
-// gen_amalgamated expanded: #include "perfetto/protozero/field_writer.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/message.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/packed_repeated_fields.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/proto_decoder.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/proto_utils.h"
-
-namespace perfetto {
-namespace protos {
-namespace pbzero {
-
-class ObfuscatedClass;
-class ObfuscatedMember;
-
-class DeobfuscationMapping_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/3, /*HAS_NONPACKED_REPEATED_FIELDS=*/true> {
- public:
-  DeobfuscationMapping_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit DeobfuscationMapping_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit DeobfuscationMapping_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_package_name() const { return at<1>().valid(); }
-  ::protozero::ConstChars package_name() const { return at<1>().as_string(); }
-  bool has_version_code() const { return at<2>().valid(); }
-  int64_t version_code() const { return at<2>().as_int64(); }
-  bool has_obfuscated_classes() const { return at<3>().valid(); }
-  ::protozero::RepeatedFieldIterator<::protozero::ConstBytes> obfuscated_classes() const { return GetRepeated<::protozero::ConstBytes>(3); }
-};
-
-class DeobfuscationMapping : public ::protozero::Message {
- public:
-  using Decoder = DeobfuscationMapping_Decoder;
-  enum : int32_t {
-    kPackageNameFieldNumber = 1,
-    kVersionCodeFieldNumber = 2,
-    kObfuscatedClassesFieldNumber = 3,
-  };
-
-  using FieldMetadata_PackageName =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kString,
-      std::string,
-      DeobfuscationMapping>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_PackageName kPackageName() { return {}; }
-  void set_package_name(const char* data, size_t size) {
-    AppendBytes(FieldMetadata_PackageName::kFieldId, data, size);
-  }
-  void set_package_name(std::string value) {
-    static constexpr uint32_t field_id = FieldMetadata_PackageName::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kString>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_VersionCode =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt64,
-      int64_t,
-      DeobfuscationMapping>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_VersionCode kVersionCode() { return {}; }
-  void set_version_code(int64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_VersionCode::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_ObfuscatedClasses =
-    ::protozero::proto_utils::FieldMetadata<
-      3,
-      ::protozero::proto_utils::RepetitionType::kRepeatedNotPacked,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      ObfuscatedClass,
-      DeobfuscationMapping>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_ObfuscatedClasses kObfuscatedClasses() { return {}; }
-  template <typename T = ObfuscatedClass> T* add_obfuscated_classes() {
-    return BeginNestedMessage<T>(3);
-  }
-
-};
-
-class ObfuscatedClass_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/4, /*HAS_NONPACKED_REPEATED_FIELDS=*/true> {
- public:
-  ObfuscatedClass_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit ObfuscatedClass_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit ObfuscatedClass_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_obfuscated_name() const { return at<1>().valid(); }
-  ::protozero::ConstChars obfuscated_name() const { return at<1>().as_string(); }
-  bool has_deobfuscated_name() const { return at<2>().valid(); }
-  ::protozero::ConstChars deobfuscated_name() const { return at<2>().as_string(); }
-  bool has_obfuscated_members() const { return at<3>().valid(); }
-  ::protozero::RepeatedFieldIterator<::protozero::ConstBytes> obfuscated_members() const { return GetRepeated<::protozero::ConstBytes>(3); }
-  bool has_obfuscated_methods() const { return at<4>().valid(); }
-  ::protozero::RepeatedFieldIterator<::protozero::ConstBytes> obfuscated_methods() const { return GetRepeated<::protozero::ConstBytes>(4); }
-};
-
-class ObfuscatedClass : public ::protozero::Message {
- public:
-  using Decoder = ObfuscatedClass_Decoder;
-  enum : int32_t {
-    kObfuscatedNameFieldNumber = 1,
-    kDeobfuscatedNameFieldNumber = 2,
-    kObfuscatedMembersFieldNumber = 3,
-    kObfuscatedMethodsFieldNumber = 4,
-  };
-
-  using FieldMetadata_ObfuscatedName =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kString,
-      std::string,
-      ObfuscatedClass>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_ObfuscatedName kObfuscatedName() { return {}; }
-  void set_obfuscated_name(const char* data, size_t size) {
-    AppendBytes(FieldMetadata_ObfuscatedName::kFieldId, data, size);
-  }
-  void set_obfuscated_name(std::string value) {
-    static constexpr uint32_t field_id = FieldMetadata_ObfuscatedName::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kString>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_DeobfuscatedName =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kString,
-      std::string,
-      ObfuscatedClass>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_DeobfuscatedName kDeobfuscatedName() { return {}; }
-  void set_deobfuscated_name(const char* data, size_t size) {
-    AppendBytes(FieldMetadata_DeobfuscatedName::kFieldId, data, size);
-  }
-  void set_deobfuscated_name(std::string value) {
-    static constexpr uint32_t field_id = FieldMetadata_DeobfuscatedName::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kString>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_ObfuscatedMembers =
-    ::protozero::proto_utils::FieldMetadata<
-      3,
-      ::protozero::proto_utils::RepetitionType::kRepeatedNotPacked,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      ObfuscatedMember,
-      ObfuscatedClass>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_ObfuscatedMembers kObfuscatedMembers() { return {}; }
-  template <typename T = ObfuscatedMember> T* add_obfuscated_members() {
-    return BeginNestedMessage<T>(3);
-  }
-
-
-  using FieldMetadata_ObfuscatedMethods =
-    ::protozero::proto_utils::FieldMetadata<
-      4,
-      ::protozero::proto_utils::RepetitionType::kRepeatedNotPacked,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      ObfuscatedMember,
-      ObfuscatedClass>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_ObfuscatedMethods kObfuscatedMethods() { return {}; }
-  template <typename T = ObfuscatedMember> T* add_obfuscated_methods() {
-    return BeginNestedMessage<T>(4);
-  }
-
-};
-
-class ObfuscatedMember_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/2, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  ObfuscatedMember_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit ObfuscatedMember_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit ObfuscatedMember_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_obfuscated_name() const { return at<1>().valid(); }
-  ::protozero::ConstChars obfuscated_name() const { return at<1>().as_string(); }
-  bool has_deobfuscated_name() const { return at<2>().valid(); }
-  ::protozero::ConstChars deobfuscated_name() const { return at<2>().as_string(); }
-};
-
-class ObfuscatedMember : public ::protozero::Message {
- public:
-  using Decoder = ObfuscatedMember_Decoder;
-  enum : int32_t {
-    kObfuscatedNameFieldNumber = 1,
-    kDeobfuscatedNameFieldNumber = 2,
-  };
-
-  using FieldMetadata_ObfuscatedName =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kString,
-      std::string,
-      ObfuscatedMember>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_ObfuscatedName kObfuscatedName() { return {}; }
-  void set_obfuscated_name(const char* data, size_t size) {
-    AppendBytes(FieldMetadata_ObfuscatedName::kFieldId, data, size);
-  }
-  void set_obfuscated_name(std::string value) {
-    static constexpr uint32_t field_id = FieldMetadata_ObfuscatedName::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kString>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_DeobfuscatedName =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kString,
-      std::string,
-      ObfuscatedMember>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_DeobfuscatedName kDeobfuscatedName() { return {}; }
-  void set_deobfuscated_name(const char* data, size_t size) {
-    AppendBytes(FieldMetadata_DeobfuscatedName::kFieldId, data, size);
-  }
-  void set_deobfuscated_name(std::string value) {
-    static constexpr uint32_t field_id = FieldMetadata_DeobfuscatedName::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kString>
-        ::Append(*this, field_id, value);
-  }
-};
-
-} // Namespace.
-} // Namespace.
-} // Namespace.
-#endif  // Include guard.
-// Autogenerated by the ProtoZero compiler plugin. DO NOT EDIT.
-
-#ifndef PERFETTO_PROTOS_PROTOS_PERFETTO_TRACE_PROFILING_HEAP_GRAPH_PROTO_H_
-#define PERFETTO_PROTOS_PROTOS_PERFETTO_TRACE_PROFILING_HEAP_GRAPH_PROTO_H_
-
-#include <stddef.h>
-#include <stdint.h>
-
-// gen_amalgamated expanded: #include "perfetto/protozero/field_writer.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/message.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/packed_repeated_fields.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/proto_decoder.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/proto_utils.h"
-// gen_amalgamated expanded: #include "protos/perfetto/trace/profiling/deobfuscation.pbzero.h"
-
-namespace perfetto {
-namespace protos {
-namespace pbzero {
-
-class HeapGraphObject;
-class HeapGraphRoot;
-class HeapGraphType;
-class InternedString;
-enum HeapGraphRoot_Type : int32_t;
-enum HeapGraphType_Kind : int32_t;
-
-enum HeapGraphType_Kind : int32_t {
-  HeapGraphType_Kind_KIND_UNKNOWN = 0,
-  HeapGraphType_Kind_KIND_NORMAL = 1,
-  HeapGraphType_Kind_KIND_NOREFERENCES = 2,
-  HeapGraphType_Kind_KIND_STRING = 3,
-  HeapGraphType_Kind_KIND_ARRAY = 4,
-  HeapGraphType_Kind_KIND_CLASS = 5,
-  HeapGraphType_Kind_KIND_CLASSLOADER = 6,
-  HeapGraphType_Kind_KIND_DEXCACHE = 7,
-  HeapGraphType_Kind_KIND_SOFT_REFERENCE = 8,
-  HeapGraphType_Kind_KIND_WEAK_REFERENCE = 9,
-  HeapGraphType_Kind_KIND_FINALIZER_REFERENCE = 10,
-  HeapGraphType_Kind_KIND_PHANTOM_REFERENCE = 11,
-};
-
-const HeapGraphType_Kind HeapGraphType_Kind_MIN = HeapGraphType_Kind_KIND_UNKNOWN;
-const HeapGraphType_Kind HeapGraphType_Kind_MAX = HeapGraphType_Kind_KIND_PHANTOM_REFERENCE;
-
-enum HeapGraphRoot_Type : int32_t {
-  HeapGraphRoot_Type_ROOT_UNKNOWN = 0,
-  HeapGraphRoot_Type_ROOT_JNI_GLOBAL = 1,
-  HeapGraphRoot_Type_ROOT_JNI_LOCAL = 2,
-  HeapGraphRoot_Type_ROOT_JAVA_FRAME = 3,
-  HeapGraphRoot_Type_ROOT_NATIVE_STACK = 4,
-  HeapGraphRoot_Type_ROOT_STICKY_CLASS = 5,
-  HeapGraphRoot_Type_ROOT_THREAD_BLOCK = 6,
-  HeapGraphRoot_Type_ROOT_MONITOR_USED = 7,
-  HeapGraphRoot_Type_ROOT_THREAD_OBJECT = 8,
-  HeapGraphRoot_Type_ROOT_INTERNED_STRING = 9,
-  HeapGraphRoot_Type_ROOT_FINALIZING = 10,
-  HeapGraphRoot_Type_ROOT_DEBUGGER = 11,
-  HeapGraphRoot_Type_ROOT_REFERENCE_CLEANUP = 12,
-  HeapGraphRoot_Type_ROOT_VM_INTERNAL = 13,
-  HeapGraphRoot_Type_ROOT_JNI_MONITOR = 14,
-};
-
-const HeapGraphRoot_Type HeapGraphRoot_Type_MIN = HeapGraphRoot_Type_ROOT_UNKNOWN;
-const HeapGraphRoot_Type HeapGraphRoot_Type_MAX = HeapGraphRoot_Type_ROOT_JNI_MONITOR;
-
-class HeapGraph_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/9, /*HAS_NONPACKED_REPEATED_FIELDS=*/true> {
- public:
-  HeapGraph_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit HeapGraph_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit HeapGraph_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_pid() const { return at<1>().valid(); }
-  int32_t pid() const { return at<1>().as_int32(); }
-  bool has_objects() const { return at<2>().valid(); }
-  ::protozero::RepeatedFieldIterator<::protozero::ConstBytes> objects() const { return GetRepeated<::protozero::ConstBytes>(2); }
-  bool has_roots() const { return at<7>().valid(); }
-  ::protozero::RepeatedFieldIterator<::protozero::ConstBytes> roots() const { return GetRepeated<::protozero::ConstBytes>(7); }
-  bool has_types() const { return at<9>().valid(); }
-  ::protozero::RepeatedFieldIterator<::protozero::ConstBytes> types() const { return GetRepeated<::protozero::ConstBytes>(9); }
-  bool has_field_names() const { return at<4>().valid(); }
-  ::protozero::RepeatedFieldIterator<::protozero::ConstBytes> field_names() const { return GetRepeated<::protozero::ConstBytes>(4); }
-  bool has_location_names() const { return at<8>().valid(); }
-  ::protozero::RepeatedFieldIterator<::protozero::ConstBytes> location_names() const { return GetRepeated<::protozero::ConstBytes>(8); }
-  bool has_continued() const { return at<5>().valid(); }
-  bool continued() const { return at<5>().as_bool(); }
-  bool has_index() const { return at<6>().valid(); }
-  uint64_t index() const { return at<6>().as_uint64(); }
-};
-
-class HeapGraph : public ::protozero::Message {
- public:
-  using Decoder = HeapGraph_Decoder;
-  enum : int32_t {
-    kPidFieldNumber = 1,
-    kObjectsFieldNumber = 2,
-    kRootsFieldNumber = 7,
-    kTypesFieldNumber = 9,
-    kFieldNamesFieldNumber = 4,
-    kLocationNamesFieldNumber = 8,
-    kContinuedFieldNumber = 5,
-    kIndexFieldNumber = 6,
-  };
-
-  using FieldMetadata_Pid =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt32,
-      int32_t,
-      HeapGraph>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Pid kPid() { return {}; }
-  void set_pid(int32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Pid::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Objects =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kRepeatedNotPacked,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      HeapGraphObject,
-      HeapGraph>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Objects kObjects() { return {}; }
-  template <typename T = HeapGraphObject> T* add_objects() {
-    return BeginNestedMessage<T>(2);
-  }
-
-
-  using FieldMetadata_Roots =
-    ::protozero::proto_utils::FieldMetadata<
-      7,
-      ::protozero::proto_utils::RepetitionType::kRepeatedNotPacked,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      HeapGraphRoot,
-      HeapGraph>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Roots kRoots() { return {}; }
-  template <typename T = HeapGraphRoot> T* add_roots() {
-    return BeginNestedMessage<T>(7);
-  }
-
-
-  using FieldMetadata_Types =
-    ::protozero::proto_utils::FieldMetadata<
-      9,
-      ::protozero::proto_utils::RepetitionType::kRepeatedNotPacked,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      HeapGraphType,
-      HeapGraph>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Types kTypes() { return {}; }
-  template <typename T = HeapGraphType> T* add_types() {
-    return BeginNestedMessage<T>(9);
-  }
-
-
-  using FieldMetadata_FieldNames =
-    ::protozero::proto_utils::FieldMetadata<
-      4,
-      ::protozero::proto_utils::RepetitionType::kRepeatedNotPacked,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      InternedString,
-      HeapGraph>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_FieldNames kFieldNames() { return {}; }
-  template <typename T = InternedString> T* add_field_names() {
-    return BeginNestedMessage<T>(4);
-  }
-
-
-  using FieldMetadata_LocationNames =
-    ::protozero::proto_utils::FieldMetadata<
-      8,
-      ::protozero::proto_utils::RepetitionType::kRepeatedNotPacked,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      InternedString,
-      HeapGraph>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_LocationNames kLocationNames() { return {}; }
-  template <typename T = InternedString> T* add_location_names() {
-    return BeginNestedMessage<T>(8);
-  }
-
-
-  using FieldMetadata_Continued =
-    ::protozero::proto_utils::FieldMetadata<
-      5,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kBool,
-      bool,
-      HeapGraph>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Continued kContinued() { return {}; }
-  void set_continued(bool value) {
-    static constexpr uint32_t field_id = FieldMetadata_Continued::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kBool>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Index =
-    ::protozero::proto_utils::FieldMetadata<
-      6,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      HeapGraph>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Index kIndex() { return {}; }
-  void set_index(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Index::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-};
-
-class HeapGraphObject_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/7, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  HeapGraphObject_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit HeapGraphObject_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit HeapGraphObject_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_id() const { return at<1>().valid(); }
-  uint64_t id() const { return at<1>().as_uint64(); }
-  bool has_id_delta() const { return at<7>().valid(); }
-  uint64_t id_delta() const { return at<7>().as_uint64(); }
-  bool has_type_id() const { return at<2>().valid(); }
-  uint64_t type_id() const { return at<2>().as_uint64(); }
-  bool has_self_size() const { return at<3>().valid(); }
-  uint64_t self_size() const { return at<3>().as_uint64(); }
-  bool has_reference_field_id_base() const { return at<6>().valid(); }
-  uint64_t reference_field_id_base() const { return at<6>().as_uint64(); }
-  bool has_reference_field_id() const { return at<4>().valid(); }
-  ::protozero::PackedRepeatedFieldIterator<::protozero::proto_utils::ProtoWireType::kVarInt, uint64_t> reference_field_id(bool* parse_error_ptr) const { return GetPackedRepeated<::protozero::proto_utils::ProtoWireType::kVarInt, uint64_t>(4, parse_error_ptr); }
-  bool has_reference_object_id() const { return at<5>().valid(); }
-  ::protozero::PackedRepeatedFieldIterator<::protozero::proto_utils::ProtoWireType::kVarInt, uint64_t> reference_object_id(bool* parse_error_ptr) const { return GetPackedRepeated<::protozero::proto_utils::ProtoWireType::kVarInt, uint64_t>(5, parse_error_ptr); }
-};
-
-class HeapGraphObject : public ::protozero::Message {
- public:
-  using Decoder = HeapGraphObject_Decoder;
-  enum : int32_t {
-    kIdFieldNumber = 1,
-    kIdDeltaFieldNumber = 7,
-    kTypeIdFieldNumber = 2,
-    kSelfSizeFieldNumber = 3,
-    kReferenceFieldIdBaseFieldNumber = 6,
-    kReferenceFieldIdFieldNumber = 4,
-    kReferenceObjectIdFieldNumber = 5,
-  };
-
-  using FieldMetadata_Id =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      HeapGraphObject>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Id kId() { return {}; }
-  void set_id(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Id::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_IdDelta =
-    ::protozero::proto_utils::FieldMetadata<
-      7,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      HeapGraphObject>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_IdDelta kIdDelta() { return {}; }
-  void set_id_delta(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_IdDelta::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_TypeId =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      HeapGraphObject>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_TypeId kTypeId() { return {}; }
-  void set_type_id(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_TypeId::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_SelfSize =
-    ::protozero::proto_utils::FieldMetadata<
-      3,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      HeapGraphObject>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_SelfSize kSelfSize() { return {}; }
-  void set_self_size(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_SelfSize::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_ReferenceFieldIdBase =
-    ::protozero::proto_utils::FieldMetadata<
-      6,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      HeapGraphObject>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_ReferenceFieldIdBase kReferenceFieldIdBase() { return {}; }
-  void set_reference_field_id_base(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_ReferenceFieldIdBase::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_ReferenceFieldId =
-    ::protozero::proto_utils::FieldMetadata<
-      4,
-      ::protozero::proto_utils::RepetitionType::kRepeatedPacked,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      HeapGraphObject>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_ReferenceFieldId kReferenceFieldId() { return {}; }
-  void set_reference_field_id(const ::protozero::PackedVarInt& packed_buffer) {
-    AppendBytes(FieldMetadata_ReferenceFieldId::kFieldId, packed_buffer.data(),
-                packed_buffer.size());
-  }
-
-  using FieldMetadata_ReferenceObjectId =
-    ::protozero::proto_utils::FieldMetadata<
-      5,
-      ::protozero::proto_utils::RepetitionType::kRepeatedPacked,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      HeapGraphObject>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_ReferenceObjectId kReferenceObjectId() { return {}; }
-  void set_reference_object_id(const ::protozero::PackedVarInt& packed_buffer) {
-    AppendBytes(FieldMetadata_ReferenceObjectId::kFieldId, packed_buffer.data(),
-                packed_buffer.size());
-  }
-};
-
-class HeapGraphType_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/8, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  HeapGraphType_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit HeapGraphType_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit HeapGraphType_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_id() const { return at<1>().valid(); }
-  uint64_t id() const { return at<1>().as_uint64(); }
-  bool has_location_id() const { return at<2>().valid(); }
-  uint64_t location_id() const { return at<2>().as_uint64(); }
-  bool has_class_name() const { return at<3>().valid(); }
-  ::protozero::ConstChars class_name() const { return at<3>().as_string(); }
-  bool has_object_size() const { return at<4>().valid(); }
-  uint64_t object_size() const { return at<4>().as_uint64(); }
-  bool has_superclass_id() const { return at<5>().valid(); }
-  uint64_t superclass_id() const { return at<5>().as_uint64(); }
-  bool has_reference_field_id() const { return at<6>().valid(); }
-  ::protozero::PackedRepeatedFieldIterator<::protozero::proto_utils::ProtoWireType::kVarInt, uint64_t> reference_field_id(bool* parse_error_ptr) const { return GetPackedRepeated<::protozero::proto_utils::ProtoWireType::kVarInt, uint64_t>(6, parse_error_ptr); }
-  bool has_kind() const { return at<7>().valid(); }
-  int32_t kind() const { return at<7>().as_int32(); }
-  bool has_classloader_id() const { return at<8>().valid(); }
-  uint64_t classloader_id() const { return at<8>().as_uint64(); }
-};
-
-class HeapGraphType : public ::protozero::Message {
- public:
-  using Decoder = HeapGraphType_Decoder;
-  enum : int32_t {
-    kIdFieldNumber = 1,
-    kLocationIdFieldNumber = 2,
-    kClassNameFieldNumber = 3,
-    kObjectSizeFieldNumber = 4,
-    kSuperclassIdFieldNumber = 5,
-    kReferenceFieldIdFieldNumber = 6,
-    kKindFieldNumber = 7,
-    kClassloaderIdFieldNumber = 8,
-  };
-  using Kind = ::perfetto::protos::pbzero::HeapGraphType_Kind;
-  static const Kind KIND_UNKNOWN = HeapGraphType_Kind_KIND_UNKNOWN;
-  static const Kind KIND_NORMAL = HeapGraphType_Kind_KIND_NORMAL;
-  static const Kind KIND_NOREFERENCES = HeapGraphType_Kind_KIND_NOREFERENCES;
-  static const Kind KIND_STRING = HeapGraphType_Kind_KIND_STRING;
-  static const Kind KIND_ARRAY = HeapGraphType_Kind_KIND_ARRAY;
-  static const Kind KIND_CLASS = HeapGraphType_Kind_KIND_CLASS;
-  static const Kind KIND_CLASSLOADER = HeapGraphType_Kind_KIND_CLASSLOADER;
-  static const Kind KIND_DEXCACHE = HeapGraphType_Kind_KIND_DEXCACHE;
-  static const Kind KIND_SOFT_REFERENCE = HeapGraphType_Kind_KIND_SOFT_REFERENCE;
-  static const Kind KIND_WEAK_REFERENCE = HeapGraphType_Kind_KIND_WEAK_REFERENCE;
-  static const Kind KIND_FINALIZER_REFERENCE = HeapGraphType_Kind_KIND_FINALIZER_REFERENCE;
-  static const Kind KIND_PHANTOM_REFERENCE = HeapGraphType_Kind_KIND_PHANTOM_REFERENCE;
-
-  using FieldMetadata_Id =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      HeapGraphType>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Id kId() { return {}; }
-  void set_id(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Id::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_LocationId =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      HeapGraphType>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_LocationId kLocationId() { return {}; }
-  void set_location_id(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_LocationId::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_ClassName =
-    ::protozero::proto_utils::FieldMetadata<
-      3,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kString,
-      std::string,
-      HeapGraphType>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_ClassName kClassName() { return {}; }
-  void set_class_name(const char* data, size_t size) {
-    AppendBytes(FieldMetadata_ClassName::kFieldId, data, size);
-  }
-  void set_class_name(std::string value) {
-    static constexpr uint32_t field_id = FieldMetadata_ClassName::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kString>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_ObjectSize =
-    ::protozero::proto_utils::FieldMetadata<
-      4,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      HeapGraphType>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_ObjectSize kObjectSize() { return {}; }
-  void set_object_size(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_ObjectSize::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_SuperclassId =
-    ::protozero::proto_utils::FieldMetadata<
-      5,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      HeapGraphType>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_SuperclassId kSuperclassId() { return {}; }
-  void set_superclass_id(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_SuperclassId::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_ReferenceFieldId =
-    ::protozero::proto_utils::FieldMetadata<
-      6,
-      ::protozero::proto_utils::RepetitionType::kRepeatedPacked,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      HeapGraphType>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_ReferenceFieldId kReferenceFieldId() { return {}; }
-  void set_reference_field_id(const ::protozero::PackedVarInt& packed_buffer) {
-    AppendBytes(FieldMetadata_ReferenceFieldId::kFieldId, packed_buffer.data(),
-                packed_buffer.size());
-  }
-
-  using FieldMetadata_Kind =
-    ::protozero::proto_utils::FieldMetadata<
-      7,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kEnum,
-      ::perfetto::protos::pbzero::HeapGraphType_Kind,
-      HeapGraphType>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Kind kKind() { return {}; }
-  void set_kind(::perfetto::protos::pbzero::HeapGraphType_Kind value) {
-    static constexpr uint32_t field_id = FieldMetadata_Kind::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kEnum>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_ClassloaderId =
-    ::protozero::proto_utils::FieldMetadata<
-      8,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      HeapGraphType>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_ClassloaderId kClassloaderId() { return {}; }
-  void set_classloader_id(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_ClassloaderId::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-};
-
-class HeapGraphRoot_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/2, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  HeapGraphRoot_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit HeapGraphRoot_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit HeapGraphRoot_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_object_ids() const { return at<1>().valid(); }
-  ::protozero::PackedRepeatedFieldIterator<::protozero::proto_utils::ProtoWireType::kVarInt, uint64_t> object_ids(bool* parse_error_ptr) const { return GetPackedRepeated<::protozero::proto_utils::ProtoWireType::kVarInt, uint64_t>(1, parse_error_ptr); }
-  bool has_root_type() const { return at<2>().valid(); }
-  int32_t root_type() const { return at<2>().as_int32(); }
-};
-
-class HeapGraphRoot : public ::protozero::Message {
- public:
-  using Decoder = HeapGraphRoot_Decoder;
-  enum : int32_t {
-    kObjectIdsFieldNumber = 1,
-    kRootTypeFieldNumber = 2,
-  };
-  using Type = ::perfetto::protos::pbzero::HeapGraphRoot_Type;
-  static const Type ROOT_UNKNOWN = HeapGraphRoot_Type_ROOT_UNKNOWN;
-  static const Type ROOT_JNI_GLOBAL = HeapGraphRoot_Type_ROOT_JNI_GLOBAL;
-  static const Type ROOT_JNI_LOCAL = HeapGraphRoot_Type_ROOT_JNI_LOCAL;
-  static const Type ROOT_JAVA_FRAME = HeapGraphRoot_Type_ROOT_JAVA_FRAME;
-  static const Type ROOT_NATIVE_STACK = HeapGraphRoot_Type_ROOT_NATIVE_STACK;
-  static const Type ROOT_STICKY_CLASS = HeapGraphRoot_Type_ROOT_STICKY_CLASS;
-  static const Type ROOT_THREAD_BLOCK = HeapGraphRoot_Type_ROOT_THREAD_BLOCK;
-  static const Type ROOT_MONITOR_USED = HeapGraphRoot_Type_ROOT_MONITOR_USED;
-  static const Type ROOT_THREAD_OBJECT = HeapGraphRoot_Type_ROOT_THREAD_OBJECT;
-  static const Type ROOT_INTERNED_STRING = HeapGraphRoot_Type_ROOT_INTERNED_STRING;
-  static const Type ROOT_FINALIZING = HeapGraphRoot_Type_ROOT_FINALIZING;
-  static const Type ROOT_DEBUGGER = HeapGraphRoot_Type_ROOT_DEBUGGER;
-  static const Type ROOT_REFERENCE_CLEANUP = HeapGraphRoot_Type_ROOT_REFERENCE_CLEANUP;
-  static const Type ROOT_VM_INTERNAL = HeapGraphRoot_Type_ROOT_VM_INTERNAL;
-  static const Type ROOT_JNI_MONITOR = HeapGraphRoot_Type_ROOT_JNI_MONITOR;
-
-  using FieldMetadata_ObjectIds =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kRepeatedPacked,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      HeapGraphRoot>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_ObjectIds kObjectIds() { return {}; }
-  void set_object_ids(const ::protozero::PackedVarInt& packed_buffer) {
-    AppendBytes(FieldMetadata_ObjectIds::kFieldId, packed_buffer.data(),
-                packed_buffer.size());
-  }
-
-  using FieldMetadata_RootType =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kEnum,
-      ::perfetto::protos::pbzero::HeapGraphRoot_Type,
-      HeapGraphRoot>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_RootType kRootType() { return {}; }
-  void set_root_type(::perfetto::protos::pbzero::HeapGraphRoot_Type value) {
-    static constexpr uint32_t field_id = FieldMetadata_RootType::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kEnum>
-        ::Append(*this, field_id, value);
-  }
-};
-
-} // Namespace.
-} // Namespace.
-} // Namespace.
-#endif  // Include guard.
-// gen_amalgamated begin header: gen/protos/perfetto/trace/profiling/profile_common.pbzero.h
-// Autogenerated by the ProtoZero compiler plugin. DO NOT EDIT.
-
-#ifndef PERFETTO_PROTOS_PROTOS_PERFETTO_TRACE_PROFILING_PROFILE_COMMON_PROTO_H_
-#define PERFETTO_PROTOS_PROTOS_PERFETTO_TRACE_PROFILING_PROFILE_COMMON_PROTO_H_
-
-#include <stddef.h>
-#include <stdint.h>
-
-// gen_amalgamated expanded: #include "perfetto/protozero/field_writer.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/message.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/packed_repeated_fields.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/proto_decoder.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/proto_utils.h"
-
-namespace perfetto {
-namespace protos {
-namespace pbzero {
-
-class AddressSymbols;
-class Line;
-
-class Callstack_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/2, /*HAS_NONPACKED_REPEATED_FIELDS=*/true> {
- public:
-  Callstack_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit Callstack_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit Callstack_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_iid() const { return at<1>().valid(); }
-  uint64_t iid() const { return at<1>().as_uint64(); }
-  bool has_frame_ids() const { return at<2>().valid(); }
-  ::protozero::RepeatedFieldIterator<uint64_t> frame_ids() const { return GetRepeated<uint64_t>(2); }
-};
-
-class Callstack : public ::protozero::Message {
- public:
-  using Decoder = Callstack_Decoder;
-  enum : int32_t {
-    kIidFieldNumber = 1,
-    kFrameIdsFieldNumber = 2,
-  };
-
-  using FieldMetadata_Iid =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      Callstack>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Iid kIid() { return {}; }
-  void set_iid(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Iid::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_FrameIds =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kRepeatedNotPacked,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      Callstack>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_FrameIds kFrameIds() { return {}; }
-  void add_frame_ids(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_FrameIds::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-};
-
-class Frame_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/4, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  Frame_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit Frame_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit Frame_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_iid() const { return at<1>().valid(); }
-  uint64_t iid() const { return at<1>().as_uint64(); }
-  bool has_function_name_id() const { return at<2>().valid(); }
-  uint64_t function_name_id() const { return at<2>().as_uint64(); }
-  bool has_mapping_id() const { return at<3>().valid(); }
-  uint64_t mapping_id() const { return at<3>().as_uint64(); }
-  bool has_rel_pc() const { return at<4>().valid(); }
-  uint64_t rel_pc() const { return at<4>().as_uint64(); }
-};
-
-class Frame : public ::protozero::Message {
- public:
-  using Decoder = Frame_Decoder;
-  enum : int32_t {
-    kIidFieldNumber = 1,
-    kFunctionNameIdFieldNumber = 2,
-    kMappingIdFieldNumber = 3,
-    kRelPcFieldNumber = 4,
-  };
-
-  using FieldMetadata_Iid =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      Frame>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Iid kIid() { return {}; }
-  void set_iid(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Iid::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_FunctionNameId =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      Frame>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_FunctionNameId kFunctionNameId() { return {}; }
-  void set_function_name_id(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_FunctionNameId::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_MappingId =
-    ::protozero::proto_utils::FieldMetadata<
-      3,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      Frame>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_MappingId kMappingId() { return {}; }
-  void set_mapping_id(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_MappingId::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_RelPc =
-    ::protozero::proto_utils::FieldMetadata<
-      4,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      Frame>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_RelPc kRelPc() { return {}; }
-  void set_rel_pc(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_RelPc::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-};
-
-class Mapping_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/8, /*HAS_NONPACKED_REPEATED_FIELDS=*/true> {
- public:
-  Mapping_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit Mapping_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit Mapping_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_iid() const { return at<1>().valid(); }
-  uint64_t iid() const { return at<1>().as_uint64(); }
-  bool has_build_id() const { return at<2>().valid(); }
-  uint64_t build_id() const { return at<2>().as_uint64(); }
-  bool has_exact_offset() const { return at<8>().valid(); }
-  uint64_t exact_offset() const { return at<8>().as_uint64(); }
-  bool has_start_offset() const { return at<3>().valid(); }
-  uint64_t start_offset() const { return at<3>().as_uint64(); }
-  bool has_start() const { return at<4>().valid(); }
-  uint64_t start() const { return at<4>().as_uint64(); }
-  bool has_end() const { return at<5>().valid(); }
-  uint64_t end() const { return at<5>().as_uint64(); }
-  bool has_load_bias() const { return at<6>().valid(); }
-  uint64_t load_bias() const { return at<6>().as_uint64(); }
-  bool has_path_string_ids() const { return at<7>().valid(); }
-  ::protozero::RepeatedFieldIterator<uint64_t> path_string_ids() const { return GetRepeated<uint64_t>(7); }
-};
-
-class Mapping : public ::protozero::Message {
- public:
-  using Decoder = Mapping_Decoder;
-  enum : int32_t {
-    kIidFieldNumber = 1,
-    kBuildIdFieldNumber = 2,
-    kExactOffsetFieldNumber = 8,
-    kStartOffsetFieldNumber = 3,
-    kStartFieldNumber = 4,
-    kEndFieldNumber = 5,
-    kLoadBiasFieldNumber = 6,
-    kPathStringIdsFieldNumber = 7,
-  };
-
-  using FieldMetadata_Iid =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      Mapping>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Iid kIid() { return {}; }
-  void set_iid(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Iid::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_BuildId =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      Mapping>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_BuildId kBuildId() { return {}; }
-  void set_build_id(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_BuildId::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_ExactOffset =
-    ::protozero::proto_utils::FieldMetadata<
-      8,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      Mapping>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_ExactOffset kExactOffset() { return {}; }
-  void set_exact_offset(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_ExactOffset::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_StartOffset =
-    ::protozero::proto_utils::FieldMetadata<
-      3,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      Mapping>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_StartOffset kStartOffset() { return {}; }
-  void set_start_offset(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_StartOffset::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Start =
-    ::protozero::proto_utils::FieldMetadata<
-      4,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      Mapping>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Start kStart() { return {}; }
-  void set_start(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Start::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_End =
-    ::protozero::proto_utils::FieldMetadata<
-      5,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      Mapping>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_End kEnd() { return {}; }
-  void set_end(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_End::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_LoadBias =
-    ::protozero::proto_utils::FieldMetadata<
-      6,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      Mapping>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_LoadBias kLoadBias() { return {}; }
-  void set_load_bias(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_LoadBias::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_PathStringIds =
-    ::protozero::proto_utils::FieldMetadata<
-      7,
-      ::protozero::proto_utils::RepetitionType::kRepeatedNotPacked,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      Mapping>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_PathStringIds kPathStringIds() { return {}; }
-  void add_path_string_ids(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_PathStringIds::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-};
-
-class ModuleSymbols_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/3, /*HAS_NONPACKED_REPEATED_FIELDS=*/true> {
- public:
-  ModuleSymbols_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit ModuleSymbols_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit ModuleSymbols_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_path() const { return at<1>().valid(); }
-  ::protozero::ConstChars path() const { return at<1>().as_string(); }
-  bool has_build_id() const { return at<2>().valid(); }
-  ::protozero::ConstChars build_id() const { return at<2>().as_string(); }
-  bool has_address_symbols() const { return at<3>().valid(); }
-  ::protozero::RepeatedFieldIterator<::protozero::ConstBytes> address_symbols() const { return GetRepeated<::protozero::ConstBytes>(3); }
-};
-
-class ModuleSymbols : public ::protozero::Message {
- public:
-  using Decoder = ModuleSymbols_Decoder;
-  enum : int32_t {
-    kPathFieldNumber = 1,
-    kBuildIdFieldNumber = 2,
-    kAddressSymbolsFieldNumber = 3,
-  };
-
-  using FieldMetadata_Path =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kString,
-      std::string,
-      ModuleSymbols>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Path kPath() { return {}; }
-  void set_path(const char* data, size_t size) {
-    AppendBytes(FieldMetadata_Path::kFieldId, data, size);
-  }
-  void set_path(std::string value) {
-    static constexpr uint32_t field_id = FieldMetadata_Path::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kString>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_BuildId =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kString,
-      std::string,
-      ModuleSymbols>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_BuildId kBuildId() { return {}; }
-  void set_build_id(const char* data, size_t size) {
-    AppendBytes(FieldMetadata_BuildId::kFieldId, data, size);
-  }
-  void set_build_id(std::string value) {
-    static constexpr uint32_t field_id = FieldMetadata_BuildId::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kString>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_AddressSymbols =
-    ::protozero::proto_utils::FieldMetadata<
-      3,
-      ::protozero::proto_utils::RepetitionType::kRepeatedNotPacked,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      AddressSymbols,
-      ModuleSymbols>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_AddressSymbols kAddressSymbols() { return {}; }
-  template <typename T = AddressSymbols> T* add_address_symbols() {
-    return BeginNestedMessage<T>(3);
-  }
-
-};
-
-class AddressSymbols_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/2, /*HAS_NONPACKED_REPEATED_FIELDS=*/true> {
- public:
-  AddressSymbols_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit AddressSymbols_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit AddressSymbols_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_address() const { return at<1>().valid(); }
-  uint64_t address() const { return at<1>().as_uint64(); }
-  bool has_lines() const { return at<2>().valid(); }
-  ::protozero::RepeatedFieldIterator<::protozero::ConstBytes> lines() const { return GetRepeated<::protozero::ConstBytes>(2); }
-};
-
-class AddressSymbols : public ::protozero::Message {
- public:
-  using Decoder = AddressSymbols_Decoder;
-  enum : int32_t {
-    kAddressFieldNumber = 1,
-    kLinesFieldNumber = 2,
-  };
-
-  using FieldMetadata_Address =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      AddressSymbols>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Address kAddress() { return {}; }
-  void set_address(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Address::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Lines =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kRepeatedNotPacked,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      Line,
-      AddressSymbols>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Lines kLines() { return {}; }
-  template <typename T = Line> T* add_lines() {
-    return BeginNestedMessage<T>(2);
-  }
-
-};
-
-class Line_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/3, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  Line_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit Line_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit Line_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_function_name() const { return at<1>().valid(); }
-  ::protozero::ConstChars function_name() const { return at<1>().as_string(); }
-  bool has_source_file_name() const { return at<2>().valid(); }
-  ::protozero::ConstChars source_file_name() const { return at<2>().as_string(); }
-  bool has_line_number() const { return at<3>().valid(); }
-  uint32_t line_number() const { return at<3>().as_uint32(); }
-};
-
-class Line : public ::protozero::Message {
- public:
-  using Decoder = Line_Decoder;
-  enum : int32_t {
-    kFunctionNameFieldNumber = 1,
-    kSourceFileNameFieldNumber = 2,
-    kLineNumberFieldNumber = 3,
-  };
-
-  using FieldMetadata_FunctionName =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kString,
-      std::string,
-      Line>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_FunctionName kFunctionName() { return {}; }
-  void set_function_name(const char* data, size_t size) {
-    AppendBytes(FieldMetadata_FunctionName::kFieldId, data, size);
-  }
-  void set_function_name(std::string value) {
-    static constexpr uint32_t field_id = FieldMetadata_FunctionName::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kString>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_SourceFileName =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kString,
-      std::string,
-      Line>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_SourceFileName kSourceFileName() { return {}; }
-  void set_source_file_name(const char* data, size_t size) {
-    AppendBytes(FieldMetadata_SourceFileName::kFieldId, data, size);
-  }
-  void set_source_file_name(std::string value) {
-    static constexpr uint32_t field_id = FieldMetadata_SourceFileName::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kString>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_LineNumber =
-    ::protozero::proto_utils::FieldMetadata<
-      3,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      Line>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_LineNumber kLineNumber() { return {}; }
-  void set_line_number(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_LineNumber::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-};
-
-class ProfiledFrameSymbols_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/4, /*HAS_NONPACKED_REPEATED_FIELDS=*/true> {
- public:
-  ProfiledFrameSymbols_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit ProfiledFrameSymbols_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit ProfiledFrameSymbols_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_frame_iid() const { return at<1>().valid(); }
-  uint64_t frame_iid() const { return at<1>().as_uint64(); }
-  bool has_function_name_id() const { return at<2>().valid(); }
-  ::protozero::RepeatedFieldIterator<uint64_t> function_name_id() const { return GetRepeated<uint64_t>(2); }
-  bool has_file_name_id() const { return at<3>().valid(); }
-  ::protozero::RepeatedFieldIterator<uint64_t> file_name_id() const { return GetRepeated<uint64_t>(3); }
-  bool has_line_number() const { return at<4>().valid(); }
-  ::protozero::RepeatedFieldIterator<uint32_t> line_number() const { return GetRepeated<uint32_t>(4); }
-};
-
-class ProfiledFrameSymbols : public ::protozero::Message {
- public:
-  using Decoder = ProfiledFrameSymbols_Decoder;
-  enum : int32_t {
-    kFrameIidFieldNumber = 1,
-    kFunctionNameIdFieldNumber = 2,
-    kFileNameIdFieldNumber = 3,
-    kLineNumberFieldNumber = 4,
-  };
-
-  using FieldMetadata_FrameIid =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      ProfiledFrameSymbols>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_FrameIid kFrameIid() { return {}; }
-  void set_frame_iid(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_FrameIid::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_FunctionNameId =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kRepeatedNotPacked,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      ProfiledFrameSymbols>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_FunctionNameId kFunctionNameId() { return {}; }
-  void add_function_name_id(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_FunctionNameId::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_FileNameId =
-    ::protozero::proto_utils::FieldMetadata<
-      3,
-      ::protozero::proto_utils::RepetitionType::kRepeatedNotPacked,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      ProfiledFrameSymbols>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_FileNameId kFileNameId() { return {}; }
-  void add_file_name_id(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_FileNameId::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_LineNumber =
-    ::protozero::proto_utils::FieldMetadata<
-      4,
-      ::protozero::proto_utils::RepetitionType::kRepeatedNotPacked,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      ProfiledFrameSymbols>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_LineNumber kLineNumber() { return {}; }
-  void add_line_number(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_LineNumber::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-};
-
-class InternedString_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/2, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  InternedString_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit InternedString_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit InternedString_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_iid() const { return at<1>().valid(); }
-  uint64_t iid() const { return at<1>().as_uint64(); }
-  bool has_str() const { return at<2>().valid(); }
-  ::protozero::ConstBytes str() const { return at<2>().as_bytes(); }
-};
-
-class InternedString : public ::protozero::Message {
- public:
-  using Decoder = InternedString_Decoder;
-  enum : int32_t {
-    kIidFieldNumber = 1,
-    kStrFieldNumber = 2,
-  };
-
-  using FieldMetadata_Iid =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      InternedString>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Iid kIid() { return {}; }
-  void set_iid(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Iid::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Str =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kBytes,
-      std::string,
-      InternedString>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Str kStr() { return {}; }
-  void set_str(const uint8_t* data, size_t size) {
-    AppendBytes(FieldMetadata_Str::kFieldId, data, size);
-  }
-  void set_str(std::string value) {
-    static constexpr uint32_t field_id = FieldMetadata_Str::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kBytes>
-        ::Append(*this, field_id, value);
-  }
-};
-
-} // Namespace.
-} // Namespace.
-} // Namespace.
-#endif  // Include guard.
-// gen_amalgamated begin header: gen/protos/perfetto/trace/profiling/profile_packet.pbzero.h
-// Autogenerated by the ProtoZero compiler plugin. DO NOT EDIT.
-
-#ifndef PERFETTO_PROTOS_PROTOS_PERFETTO_TRACE_PROFILING_PROFILE_PACKET_PROTO_H_
-#define PERFETTO_PROTOS_PROTOS_PERFETTO_TRACE_PROFILING_PROFILE_PACKET_PROTO_H_
-
-#include <stddef.h>
-#include <stdint.h>
-
-// gen_amalgamated expanded: #include "perfetto/protozero/field_writer.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/message.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/packed_repeated_fields.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/proto_decoder.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/proto_utils.h"
-
-namespace perfetto {
-namespace protos {
-namespace pbzero {
-
-class Callstack;
-class Frame;
-class InternedString;
-class Mapping;
-class PerfEvents_Timebase;
-class PerfSample_ProducerEvent;
-class ProfilePacket_HeapSample;
-class ProfilePacket_Histogram;
-class ProfilePacket_Histogram_Bucket;
-class ProfilePacket_ProcessHeapSamples;
-class ProfilePacket_ProcessStats;
-enum PerfSample_ProducerEvent_DataSourceStopReason : int32_t;
-enum PerfSample_SampleSkipReason : int32_t;
-enum ProfilePacket_ProcessHeapSamples_ClientError : int32_t;
-enum Profiling_CpuMode : int32_t;
-enum Profiling_StackUnwindError : int32_t;
-
-enum PerfSample_SampleSkipReason : int32_t {
-  PerfSample_SampleSkipReason_PROFILER_SKIP_UNKNOWN = 0,
-  PerfSample_SampleSkipReason_PROFILER_SKIP_READ_STAGE = 1,
-  PerfSample_SampleSkipReason_PROFILER_SKIP_UNWIND_STAGE = 2,
-  PerfSample_SampleSkipReason_PROFILER_SKIP_UNWIND_ENQUEUE = 3,
-};
-
-const PerfSample_SampleSkipReason PerfSample_SampleSkipReason_MIN = PerfSample_SampleSkipReason_PROFILER_SKIP_UNKNOWN;
-const PerfSample_SampleSkipReason PerfSample_SampleSkipReason_MAX = PerfSample_SampleSkipReason_PROFILER_SKIP_UNWIND_ENQUEUE;
-
-enum PerfSample_ProducerEvent_DataSourceStopReason : int32_t {
-  PerfSample_ProducerEvent_DataSourceStopReason_PROFILER_STOP_UNKNOWN = 0,
-  PerfSample_ProducerEvent_DataSourceStopReason_PROFILER_STOP_GUARDRAIL = 1,
-};
-
-const PerfSample_ProducerEvent_DataSourceStopReason PerfSample_ProducerEvent_DataSourceStopReason_MIN = PerfSample_ProducerEvent_DataSourceStopReason_PROFILER_STOP_UNKNOWN;
-const PerfSample_ProducerEvent_DataSourceStopReason PerfSample_ProducerEvent_DataSourceStopReason_MAX = PerfSample_ProducerEvent_DataSourceStopReason_PROFILER_STOP_GUARDRAIL;
-
-enum Profiling_CpuMode : int32_t {
-  Profiling_CpuMode_MODE_UNKNOWN = 0,
-  Profiling_CpuMode_MODE_KERNEL = 1,
-  Profiling_CpuMode_MODE_USER = 2,
-  Profiling_CpuMode_MODE_HYPERVISOR = 3,
-  Profiling_CpuMode_MODE_GUEST_KERNEL = 4,
-  Profiling_CpuMode_MODE_GUEST_USER = 5,
-};
-
-const Profiling_CpuMode Profiling_CpuMode_MIN = Profiling_CpuMode_MODE_UNKNOWN;
-const Profiling_CpuMode Profiling_CpuMode_MAX = Profiling_CpuMode_MODE_GUEST_USER;
-
-enum Profiling_StackUnwindError : int32_t {
-  Profiling_StackUnwindError_UNWIND_ERROR_UNKNOWN = 0,
-  Profiling_StackUnwindError_UNWIND_ERROR_NONE = 1,
-  Profiling_StackUnwindError_UNWIND_ERROR_MEMORY_INVALID = 2,
-  Profiling_StackUnwindError_UNWIND_ERROR_UNWIND_INFO = 3,
-  Profiling_StackUnwindError_UNWIND_ERROR_UNSUPPORTED = 4,
-  Profiling_StackUnwindError_UNWIND_ERROR_INVALID_MAP = 5,
-  Profiling_StackUnwindError_UNWIND_ERROR_MAX_FRAMES_EXCEEDED = 6,
-  Profiling_StackUnwindError_UNWIND_ERROR_REPEATED_FRAME = 7,
-  Profiling_StackUnwindError_UNWIND_ERROR_INVALID_ELF = 8,
-  Profiling_StackUnwindError_UNWIND_ERROR_SYSTEM_CALL = 9,
-  Profiling_StackUnwindError_UNWIND_ERROR_THREAD_TIMEOUT = 10,
-  Profiling_StackUnwindError_UNWIND_ERROR_THREAD_DOES_NOT_EXIST = 11,
-};
-
-const Profiling_StackUnwindError Profiling_StackUnwindError_MIN = Profiling_StackUnwindError_UNWIND_ERROR_UNKNOWN;
-const Profiling_StackUnwindError Profiling_StackUnwindError_MAX = Profiling_StackUnwindError_UNWIND_ERROR_THREAD_DOES_NOT_EXIST;
-
-enum ProfilePacket_ProcessHeapSamples_ClientError : int32_t {
-  ProfilePacket_ProcessHeapSamples_ClientError_CLIENT_ERROR_NONE = 0,
-  ProfilePacket_ProcessHeapSamples_ClientError_CLIENT_ERROR_HIT_TIMEOUT = 1,
-  ProfilePacket_ProcessHeapSamples_ClientError_CLIENT_ERROR_INVALID_STACK_BOUNDS = 2,
-};
-
-const ProfilePacket_ProcessHeapSamples_ClientError ProfilePacket_ProcessHeapSamples_ClientError_MIN = ProfilePacket_ProcessHeapSamples_ClientError_CLIENT_ERROR_NONE;
-const ProfilePacket_ProcessHeapSamples_ClientError ProfilePacket_ProcessHeapSamples_ClientError_MAX = ProfilePacket_ProcessHeapSamples_ClientError_CLIENT_ERROR_INVALID_STACK_BOUNDS;
-
-class PerfSampleDefaults_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/1, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  PerfSampleDefaults_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit PerfSampleDefaults_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit PerfSampleDefaults_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_timebase() const { return at<1>().valid(); }
-  ::protozero::ConstBytes timebase() const { return at<1>().as_bytes(); }
-};
-
-class PerfSampleDefaults : public ::protozero::Message {
- public:
-  using Decoder = PerfSampleDefaults_Decoder;
-  enum : int32_t {
-    kTimebaseFieldNumber = 1,
-  };
-
-  using FieldMetadata_Timebase =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      PerfEvents_Timebase,
-      PerfSampleDefaults>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Timebase kTimebase() { return {}; }
-  template <typename T = PerfEvents_Timebase> T* set_timebase() {
-    return BeginNestedMessage<T>(1);
-  }
-
-};
-
-class PerfSample_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/19, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  PerfSample_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit PerfSample_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit PerfSample_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_cpu() const { return at<1>().valid(); }
-  uint32_t cpu() const { return at<1>().as_uint32(); }
-  bool has_pid() const { return at<2>().valid(); }
-  uint32_t pid() const { return at<2>().as_uint32(); }
-  bool has_tid() const { return at<3>().valid(); }
-  uint32_t tid() const { return at<3>().as_uint32(); }
-  bool has_cpu_mode() const { return at<5>().valid(); }
-  int32_t cpu_mode() const { return at<5>().as_int32(); }
-  bool has_timebase_count() const { return at<6>().valid(); }
-  uint64_t timebase_count() const { return at<6>().as_uint64(); }
-  bool has_callstack_iid() const { return at<4>().valid(); }
-  uint64_t callstack_iid() const { return at<4>().as_uint64(); }
-  bool has_unwind_error() const { return at<16>().valid(); }
-  int32_t unwind_error() const { return at<16>().as_int32(); }
-  bool has_kernel_records_lost() const { return at<17>().valid(); }
-  uint64_t kernel_records_lost() const { return at<17>().as_uint64(); }
-  bool has_sample_skipped_reason() const { return at<18>().valid(); }
-  int32_t sample_skipped_reason() const { return at<18>().as_int32(); }
-  bool has_producer_event() const { return at<19>().valid(); }
-  ::protozero::ConstBytes producer_event() const { return at<19>().as_bytes(); }
-};
-
-class PerfSample : public ::protozero::Message {
- public:
-  using Decoder = PerfSample_Decoder;
-  enum : int32_t {
-    kCpuFieldNumber = 1,
-    kPidFieldNumber = 2,
-    kTidFieldNumber = 3,
-    kCpuModeFieldNumber = 5,
-    kTimebaseCountFieldNumber = 6,
-    kCallstackIidFieldNumber = 4,
-    kUnwindErrorFieldNumber = 16,
-    kKernelRecordsLostFieldNumber = 17,
-    kSampleSkippedReasonFieldNumber = 18,
-    kProducerEventFieldNumber = 19,
-  };
-  using ProducerEvent = ::perfetto::protos::pbzero::PerfSample_ProducerEvent;
-  using SampleSkipReason = ::perfetto::protos::pbzero::PerfSample_SampleSkipReason;
-  static const SampleSkipReason PROFILER_SKIP_UNKNOWN = PerfSample_SampleSkipReason_PROFILER_SKIP_UNKNOWN;
-  static const SampleSkipReason PROFILER_SKIP_READ_STAGE = PerfSample_SampleSkipReason_PROFILER_SKIP_READ_STAGE;
-  static const SampleSkipReason PROFILER_SKIP_UNWIND_STAGE = PerfSample_SampleSkipReason_PROFILER_SKIP_UNWIND_STAGE;
-  static const SampleSkipReason PROFILER_SKIP_UNWIND_ENQUEUE = PerfSample_SampleSkipReason_PROFILER_SKIP_UNWIND_ENQUEUE;
-
-  using FieldMetadata_Cpu =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      PerfSample>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Cpu kCpu() { return {}; }
-  void set_cpu(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Cpu::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Pid =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      PerfSample>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Pid kPid() { return {}; }
-  void set_pid(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Pid::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Tid =
-    ::protozero::proto_utils::FieldMetadata<
-      3,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      PerfSample>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Tid kTid() { return {}; }
-  void set_tid(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Tid::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_CpuMode =
-    ::protozero::proto_utils::FieldMetadata<
-      5,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kEnum,
-      ::perfetto::protos::pbzero::Profiling_CpuMode,
-      PerfSample>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_CpuMode kCpuMode() { return {}; }
-  void set_cpu_mode(::perfetto::protos::pbzero::Profiling_CpuMode value) {
-    static constexpr uint32_t field_id = FieldMetadata_CpuMode::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kEnum>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_TimebaseCount =
-    ::protozero::proto_utils::FieldMetadata<
-      6,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      PerfSample>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_TimebaseCount kTimebaseCount() { return {}; }
-  void set_timebase_count(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_TimebaseCount::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_CallstackIid =
-    ::protozero::proto_utils::FieldMetadata<
-      4,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      PerfSample>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_CallstackIid kCallstackIid() { return {}; }
-  void set_callstack_iid(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_CallstackIid::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_UnwindError =
-    ::protozero::proto_utils::FieldMetadata<
-      16,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kEnum,
-      ::perfetto::protos::pbzero::Profiling_StackUnwindError,
-      PerfSample>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_UnwindError kUnwindError() { return {}; }
-  void set_unwind_error(::perfetto::protos::pbzero::Profiling_StackUnwindError value) {
-    static constexpr uint32_t field_id = FieldMetadata_UnwindError::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kEnum>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_KernelRecordsLost =
-    ::protozero::proto_utils::FieldMetadata<
-      17,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      PerfSample>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_KernelRecordsLost kKernelRecordsLost() { return {}; }
-  void set_kernel_records_lost(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_KernelRecordsLost::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_SampleSkippedReason =
-    ::protozero::proto_utils::FieldMetadata<
-      18,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kEnum,
-      ::perfetto::protos::pbzero::PerfSample_SampleSkipReason,
-      PerfSample>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_SampleSkippedReason kSampleSkippedReason() { return {}; }
-  void set_sample_skipped_reason(::perfetto::protos::pbzero::PerfSample_SampleSkipReason value) {
-    static constexpr uint32_t field_id = FieldMetadata_SampleSkippedReason::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kEnum>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_ProducerEvent =
-    ::protozero::proto_utils::FieldMetadata<
-      19,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      PerfSample_ProducerEvent,
-      PerfSample>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_ProducerEvent kProducerEvent() { return {}; }
-  template <typename T = PerfSample_ProducerEvent> T* set_producer_event() {
-    return BeginNestedMessage<T>(19);
-  }
-
-};
-
-class PerfSample_ProducerEvent_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/1, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  PerfSample_ProducerEvent_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit PerfSample_ProducerEvent_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit PerfSample_ProducerEvent_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_source_stop_reason() const { return at<1>().valid(); }
-  int32_t source_stop_reason() const { return at<1>().as_int32(); }
-};
-
-class PerfSample_ProducerEvent : public ::protozero::Message {
- public:
-  using Decoder = PerfSample_ProducerEvent_Decoder;
-  enum : int32_t {
-    kSourceStopReasonFieldNumber = 1,
-  };
-  using DataSourceStopReason = ::perfetto::protos::pbzero::PerfSample_ProducerEvent_DataSourceStopReason;
-  static const DataSourceStopReason PROFILER_STOP_UNKNOWN = PerfSample_ProducerEvent_DataSourceStopReason_PROFILER_STOP_UNKNOWN;
-  static const DataSourceStopReason PROFILER_STOP_GUARDRAIL = PerfSample_ProducerEvent_DataSourceStopReason_PROFILER_STOP_GUARDRAIL;
-
-  using FieldMetadata_SourceStopReason =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kEnum,
-      ::perfetto::protos::pbzero::PerfSample_ProducerEvent_DataSourceStopReason,
-      PerfSample_ProducerEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_SourceStopReason kSourceStopReason() { return {}; }
-  void set_source_stop_reason(::perfetto::protos::pbzero::PerfSample_ProducerEvent_DataSourceStopReason value) {
-    static constexpr uint32_t field_id = FieldMetadata_SourceStopReason::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kEnum>
-        ::Append(*this, field_id, value);
-  }
-};
-
-class Profiling_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/0, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  Profiling_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit Profiling_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit Profiling_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-};
-
-class Profiling : public ::protozero::Message {
- public:
-  using Decoder = Profiling_Decoder;
-  using CpuMode = ::perfetto::protos::pbzero::Profiling_CpuMode;
-  using StackUnwindError = ::perfetto::protos::pbzero::Profiling_StackUnwindError;
-  static const CpuMode MODE_UNKNOWN = Profiling_CpuMode_MODE_UNKNOWN;
-  static const CpuMode MODE_KERNEL = Profiling_CpuMode_MODE_KERNEL;
-  static const CpuMode MODE_USER = Profiling_CpuMode_MODE_USER;
-  static const CpuMode MODE_HYPERVISOR = Profiling_CpuMode_MODE_HYPERVISOR;
-  static const CpuMode MODE_GUEST_KERNEL = Profiling_CpuMode_MODE_GUEST_KERNEL;
-  static const CpuMode MODE_GUEST_USER = Profiling_CpuMode_MODE_GUEST_USER;
-  static const StackUnwindError UNWIND_ERROR_UNKNOWN = Profiling_StackUnwindError_UNWIND_ERROR_UNKNOWN;
-  static const StackUnwindError UNWIND_ERROR_NONE = Profiling_StackUnwindError_UNWIND_ERROR_NONE;
-  static const StackUnwindError UNWIND_ERROR_MEMORY_INVALID = Profiling_StackUnwindError_UNWIND_ERROR_MEMORY_INVALID;
-  static const StackUnwindError UNWIND_ERROR_UNWIND_INFO = Profiling_StackUnwindError_UNWIND_ERROR_UNWIND_INFO;
-  static const StackUnwindError UNWIND_ERROR_UNSUPPORTED = Profiling_StackUnwindError_UNWIND_ERROR_UNSUPPORTED;
-  static const StackUnwindError UNWIND_ERROR_INVALID_MAP = Profiling_StackUnwindError_UNWIND_ERROR_INVALID_MAP;
-  static const StackUnwindError UNWIND_ERROR_MAX_FRAMES_EXCEEDED = Profiling_StackUnwindError_UNWIND_ERROR_MAX_FRAMES_EXCEEDED;
-  static const StackUnwindError UNWIND_ERROR_REPEATED_FRAME = Profiling_StackUnwindError_UNWIND_ERROR_REPEATED_FRAME;
-  static const StackUnwindError UNWIND_ERROR_INVALID_ELF = Profiling_StackUnwindError_UNWIND_ERROR_INVALID_ELF;
-  static const StackUnwindError UNWIND_ERROR_SYSTEM_CALL = Profiling_StackUnwindError_UNWIND_ERROR_SYSTEM_CALL;
-  static const StackUnwindError UNWIND_ERROR_THREAD_TIMEOUT = Profiling_StackUnwindError_UNWIND_ERROR_THREAD_TIMEOUT;
-  static const StackUnwindError UNWIND_ERROR_THREAD_DOES_NOT_EXIST = Profiling_StackUnwindError_UNWIND_ERROR_THREAD_DOES_NOT_EXIST;
-};
-
-class StreamingProfilePacket_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/3, /*HAS_NONPACKED_REPEATED_FIELDS=*/true> {
- public:
-  StreamingProfilePacket_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit StreamingProfilePacket_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit StreamingProfilePacket_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_callstack_iid() const { return at<1>().valid(); }
-  ::protozero::RepeatedFieldIterator<uint64_t> callstack_iid() const { return GetRepeated<uint64_t>(1); }
-  bool has_timestamp_delta_us() const { return at<2>().valid(); }
-  ::protozero::RepeatedFieldIterator<int64_t> timestamp_delta_us() const { return GetRepeated<int64_t>(2); }
-  bool has_process_priority() const { return at<3>().valid(); }
-  int32_t process_priority() const { return at<3>().as_int32(); }
-};
-
-class StreamingProfilePacket : public ::protozero::Message {
- public:
-  using Decoder = StreamingProfilePacket_Decoder;
-  enum : int32_t {
-    kCallstackIidFieldNumber = 1,
-    kTimestampDeltaUsFieldNumber = 2,
-    kProcessPriorityFieldNumber = 3,
-  };
-
-  using FieldMetadata_CallstackIid =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kRepeatedNotPacked,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      StreamingProfilePacket>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_CallstackIid kCallstackIid() { return {}; }
-  void add_callstack_iid(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_CallstackIid::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_TimestampDeltaUs =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kRepeatedNotPacked,
-      ::protozero::proto_utils::ProtoSchemaType::kInt64,
-      int64_t,
-      StreamingProfilePacket>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_TimestampDeltaUs kTimestampDeltaUs() { return {}; }
-  void add_timestamp_delta_us(int64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_TimestampDeltaUs::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_ProcessPriority =
-    ::protozero::proto_utils::FieldMetadata<
-      3,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt32,
-      int32_t,
-      StreamingProfilePacket>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_ProcessPriority kProcessPriority() { return {}; }
-  void set_process_priority(int32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_ProcessPriority::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt32>
-        ::Append(*this, field_id, value);
-  }
-};
-
-class StreamingFree_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/3, /*HAS_NONPACKED_REPEATED_FIELDS=*/true> {
- public:
-  StreamingFree_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit StreamingFree_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit StreamingFree_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_address() const { return at<1>().valid(); }
-  ::protozero::RepeatedFieldIterator<uint64_t> address() const { return GetRepeated<uint64_t>(1); }
-  bool has_heap_id() const { return at<2>().valid(); }
-  ::protozero::RepeatedFieldIterator<uint32_t> heap_id() const { return GetRepeated<uint32_t>(2); }
-  bool has_sequence_number() const { return at<3>().valid(); }
-  ::protozero::RepeatedFieldIterator<uint64_t> sequence_number() const { return GetRepeated<uint64_t>(3); }
-};
-
-class StreamingFree : public ::protozero::Message {
- public:
-  using Decoder = StreamingFree_Decoder;
-  enum : int32_t {
-    kAddressFieldNumber = 1,
-    kHeapIdFieldNumber = 2,
-    kSequenceNumberFieldNumber = 3,
-  };
-
-  using FieldMetadata_Address =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kRepeatedNotPacked,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      StreamingFree>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Address kAddress() { return {}; }
-  void add_address(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Address::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_HeapId =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kRepeatedNotPacked,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      StreamingFree>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_HeapId kHeapId() { return {}; }
-  void add_heap_id(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_HeapId::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_SequenceNumber =
-    ::protozero::proto_utils::FieldMetadata<
-      3,
-      ::protozero::proto_utils::RepetitionType::kRepeatedNotPacked,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      StreamingFree>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_SequenceNumber kSequenceNumber() { return {}; }
-  void add_sequence_number(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_SequenceNumber::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-};
-
-class StreamingAllocation_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/6, /*HAS_NONPACKED_REPEATED_FIELDS=*/true> {
- public:
-  StreamingAllocation_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit StreamingAllocation_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit StreamingAllocation_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_address() const { return at<1>().valid(); }
-  ::protozero::RepeatedFieldIterator<uint64_t> address() const { return GetRepeated<uint64_t>(1); }
-  bool has_size() const { return at<2>().valid(); }
-  ::protozero::RepeatedFieldIterator<uint64_t> size() const { return GetRepeated<uint64_t>(2); }
-  bool has_sample_size() const { return at<3>().valid(); }
-  ::protozero::RepeatedFieldIterator<uint64_t> sample_size() const { return GetRepeated<uint64_t>(3); }
-  bool has_clock_monotonic_coarse_timestamp() const { return at<4>().valid(); }
-  ::protozero::RepeatedFieldIterator<uint64_t> clock_monotonic_coarse_timestamp() const { return GetRepeated<uint64_t>(4); }
-  bool has_heap_id() const { return at<5>().valid(); }
-  ::protozero::RepeatedFieldIterator<uint32_t> heap_id() const { return GetRepeated<uint32_t>(5); }
-  bool has_sequence_number() const { return at<6>().valid(); }
-  ::protozero::RepeatedFieldIterator<uint64_t> sequence_number() const { return GetRepeated<uint64_t>(6); }
-};
-
-class StreamingAllocation : public ::protozero::Message {
- public:
-  using Decoder = StreamingAllocation_Decoder;
-  enum : int32_t {
-    kAddressFieldNumber = 1,
-    kSizeFieldNumber = 2,
-    kSampleSizeFieldNumber = 3,
-    kClockMonotonicCoarseTimestampFieldNumber = 4,
-    kHeapIdFieldNumber = 5,
-    kSequenceNumberFieldNumber = 6,
-  };
-
-  using FieldMetadata_Address =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kRepeatedNotPacked,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      StreamingAllocation>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Address kAddress() { return {}; }
-  void add_address(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Address::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Size =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kRepeatedNotPacked,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      StreamingAllocation>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Size kSize() { return {}; }
-  void add_size(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Size::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_SampleSize =
-    ::protozero::proto_utils::FieldMetadata<
-      3,
-      ::protozero::proto_utils::RepetitionType::kRepeatedNotPacked,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      StreamingAllocation>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_SampleSize kSampleSize() { return {}; }
-  void add_sample_size(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_SampleSize::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_ClockMonotonicCoarseTimestamp =
-    ::protozero::proto_utils::FieldMetadata<
-      4,
-      ::protozero::proto_utils::RepetitionType::kRepeatedNotPacked,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      StreamingAllocation>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_ClockMonotonicCoarseTimestamp kClockMonotonicCoarseTimestamp() { return {}; }
-  void add_clock_monotonic_coarse_timestamp(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_ClockMonotonicCoarseTimestamp::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_HeapId =
-    ::protozero::proto_utils::FieldMetadata<
-      5,
-      ::protozero::proto_utils::RepetitionType::kRepeatedNotPacked,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      StreamingAllocation>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_HeapId kHeapId() { return {}; }
-  void add_heap_id(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_HeapId::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_SequenceNumber =
-    ::protozero::proto_utils::FieldMetadata<
-      6,
-      ::protozero::proto_utils::RepetitionType::kRepeatedNotPacked,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      StreamingAllocation>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_SequenceNumber kSequenceNumber() { return {}; }
-  void add_sequence_number(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_SequenceNumber::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-};
-
-class ProfilePacket_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/7, /*HAS_NONPACKED_REPEATED_FIELDS=*/true> {
- public:
-  ProfilePacket_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit ProfilePacket_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit ProfilePacket_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_strings() const { return at<1>().valid(); }
-  ::protozero::RepeatedFieldIterator<::protozero::ConstBytes> strings() const { return GetRepeated<::protozero::ConstBytes>(1); }
-  bool has_mappings() const { return at<4>().valid(); }
-  ::protozero::RepeatedFieldIterator<::protozero::ConstBytes> mappings() const { return GetRepeated<::protozero::ConstBytes>(4); }
-  bool has_frames() const { return at<2>().valid(); }
-  ::protozero::RepeatedFieldIterator<::protozero::ConstBytes> frames() const { return GetRepeated<::protozero::ConstBytes>(2); }
-  bool has_callstacks() const { return at<3>().valid(); }
-  ::protozero::RepeatedFieldIterator<::protozero::ConstBytes> callstacks() const { return GetRepeated<::protozero::ConstBytes>(3); }
-  bool has_process_dumps() const { return at<5>().valid(); }
-  ::protozero::RepeatedFieldIterator<::protozero::ConstBytes> process_dumps() const { return GetRepeated<::protozero::ConstBytes>(5); }
-  bool has_continued() const { return at<6>().valid(); }
-  bool continued() const { return at<6>().as_bool(); }
-  bool has_index() const { return at<7>().valid(); }
-  uint64_t index() const { return at<7>().as_uint64(); }
-};
-
-class ProfilePacket : public ::protozero::Message {
- public:
-  using Decoder = ProfilePacket_Decoder;
-  enum : int32_t {
-    kStringsFieldNumber = 1,
-    kMappingsFieldNumber = 4,
-    kFramesFieldNumber = 2,
-    kCallstacksFieldNumber = 3,
-    kProcessDumpsFieldNumber = 5,
-    kContinuedFieldNumber = 6,
-    kIndexFieldNumber = 7,
-  };
-  using HeapSample = ::perfetto::protos::pbzero::ProfilePacket_HeapSample;
-  using Histogram = ::perfetto::protos::pbzero::ProfilePacket_Histogram;
-  using ProcessStats = ::perfetto::protos::pbzero::ProfilePacket_ProcessStats;
-  using ProcessHeapSamples = ::perfetto::protos::pbzero::ProfilePacket_ProcessHeapSamples;
-
-  using FieldMetadata_Strings =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kRepeatedNotPacked,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      InternedString,
-      ProfilePacket>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Strings kStrings() { return {}; }
-  template <typename T = InternedString> T* add_strings() {
-    return BeginNestedMessage<T>(1);
-  }
-
-
-  using FieldMetadata_Mappings =
-    ::protozero::proto_utils::FieldMetadata<
-      4,
-      ::protozero::proto_utils::RepetitionType::kRepeatedNotPacked,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      Mapping,
-      ProfilePacket>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Mappings kMappings() { return {}; }
-  template <typename T = Mapping> T* add_mappings() {
-    return BeginNestedMessage<T>(4);
-  }
-
-
-  using FieldMetadata_Frames =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kRepeatedNotPacked,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      Frame,
-      ProfilePacket>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Frames kFrames() { return {}; }
-  template <typename T = Frame> T* add_frames() {
-    return BeginNestedMessage<T>(2);
-  }
-
-
-  using FieldMetadata_Callstacks =
-    ::protozero::proto_utils::FieldMetadata<
-      3,
-      ::protozero::proto_utils::RepetitionType::kRepeatedNotPacked,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      Callstack,
-      ProfilePacket>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Callstacks kCallstacks() { return {}; }
-  template <typename T = Callstack> T* add_callstacks() {
-    return BeginNestedMessage<T>(3);
-  }
-
-
-  using FieldMetadata_ProcessDumps =
-    ::protozero::proto_utils::FieldMetadata<
-      5,
-      ::protozero::proto_utils::RepetitionType::kRepeatedNotPacked,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      ProfilePacket_ProcessHeapSamples,
-      ProfilePacket>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_ProcessDumps kProcessDumps() { return {}; }
-  template <typename T = ProfilePacket_ProcessHeapSamples> T* add_process_dumps() {
-    return BeginNestedMessage<T>(5);
-  }
-
-
-  using FieldMetadata_Continued =
-    ::protozero::proto_utils::FieldMetadata<
-      6,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kBool,
-      bool,
-      ProfilePacket>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Continued kContinued() { return {}; }
-  void set_continued(bool value) {
-    static constexpr uint32_t field_id = FieldMetadata_Continued::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kBool>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Index =
-    ::protozero::proto_utils::FieldMetadata<
-      7,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      ProfilePacket>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Index kIndex() { return {}; }
-  void set_index(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Index::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-};
-
-class ProfilePacket_ProcessHeapSamples_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/14, /*HAS_NONPACKED_REPEATED_FIELDS=*/true> {
- public:
-  ProfilePacket_ProcessHeapSamples_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit ProfilePacket_ProcessHeapSamples_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit ProfilePacket_ProcessHeapSamples_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_pid() const { return at<1>().valid(); }
-  uint64_t pid() const { return at<1>().as_uint64(); }
-  bool has_from_startup() const { return at<3>().valid(); }
-  bool from_startup() const { return at<3>().as_bool(); }
-  bool has_rejected_concurrent() const { return at<4>().valid(); }
-  bool rejected_concurrent() const { return at<4>().as_bool(); }
-  bool has_disconnected() const { return at<6>().valid(); }
-  bool disconnected() const { return at<6>().as_bool(); }
-  bool has_buffer_overran() const { return at<7>().valid(); }
-  bool buffer_overran() const { return at<7>().as_bool(); }
-  bool has_client_error() const { return at<14>().valid(); }
-  int32_t client_error() const { return at<14>().as_int32(); }
-  bool has_buffer_corrupted() const { return at<8>().valid(); }
-  bool buffer_corrupted() const { return at<8>().as_bool(); }
-  bool has_hit_guardrail() const { return at<10>().valid(); }
-  bool hit_guardrail() const { return at<10>().as_bool(); }
-  bool has_heap_name() const { return at<11>().valid(); }
-  ::protozero::ConstChars heap_name() const { return at<11>().as_string(); }
-  bool has_sampling_interval_bytes() const { return at<12>().valid(); }
-  uint64_t sampling_interval_bytes() const { return at<12>().as_uint64(); }
-  bool has_orig_sampling_interval_bytes() const { return at<13>().valid(); }
-  uint64_t orig_sampling_interval_bytes() const { return at<13>().as_uint64(); }
-  bool has_timestamp() const { return at<9>().valid(); }
-  uint64_t timestamp() const { return at<9>().as_uint64(); }
-  bool has_stats() const { return at<5>().valid(); }
-  ::protozero::ConstBytes stats() const { return at<5>().as_bytes(); }
-  bool has_samples() const { return at<2>().valid(); }
-  ::protozero::RepeatedFieldIterator<::protozero::ConstBytes> samples() const { return GetRepeated<::protozero::ConstBytes>(2); }
-};
-
-class ProfilePacket_ProcessHeapSamples : public ::protozero::Message {
- public:
-  using Decoder = ProfilePacket_ProcessHeapSamples_Decoder;
-  enum : int32_t {
-    kPidFieldNumber = 1,
-    kFromStartupFieldNumber = 3,
-    kRejectedConcurrentFieldNumber = 4,
-    kDisconnectedFieldNumber = 6,
-    kBufferOverranFieldNumber = 7,
-    kClientErrorFieldNumber = 14,
-    kBufferCorruptedFieldNumber = 8,
-    kHitGuardrailFieldNumber = 10,
-    kHeapNameFieldNumber = 11,
-    kSamplingIntervalBytesFieldNumber = 12,
-    kOrigSamplingIntervalBytesFieldNumber = 13,
-    kTimestampFieldNumber = 9,
-    kStatsFieldNumber = 5,
-    kSamplesFieldNumber = 2,
-  };
-  using ClientError = ::perfetto::protos::pbzero::ProfilePacket_ProcessHeapSamples_ClientError;
-  static const ClientError CLIENT_ERROR_NONE = ProfilePacket_ProcessHeapSamples_ClientError_CLIENT_ERROR_NONE;
-  static const ClientError CLIENT_ERROR_HIT_TIMEOUT = ProfilePacket_ProcessHeapSamples_ClientError_CLIENT_ERROR_HIT_TIMEOUT;
-  static const ClientError CLIENT_ERROR_INVALID_STACK_BOUNDS = ProfilePacket_ProcessHeapSamples_ClientError_CLIENT_ERROR_INVALID_STACK_BOUNDS;
-
-  using FieldMetadata_Pid =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      ProfilePacket_ProcessHeapSamples>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Pid kPid() { return {}; }
-  void set_pid(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Pid::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_FromStartup =
-    ::protozero::proto_utils::FieldMetadata<
-      3,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kBool,
-      bool,
-      ProfilePacket_ProcessHeapSamples>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_FromStartup kFromStartup() { return {}; }
-  void set_from_startup(bool value) {
-    static constexpr uint32_t field_id = FieldMetadata_FromStartup::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kBool>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_RejectedConcurrent =
-    ::protozero::proto_utils::FieldMetadata<
-      4,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kBool,
-      bool,
-      ProfilePacket_ProcessHeapSamples>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_RejectedConcurrent kRejectedConcurrent() { return {}; }
-  void set_rejected_concurrent(bool value) {
-    static constexpr uint32_t field_id = FieldMetadata_RejectedConcurrent::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kBool>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Disconnected =
-    ::protozero::proto_utils::FieldMetadata<
-      6,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kBool,
-      bool,
-      ProfilePacket_ProcessHeapSamples>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Disconnected kDisconnected() { return {}; }
-  void set_disconnected(bool value) {
-    static constexpr uint32_t field_id = FieldMetadata_Disconnected::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kBool>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_BufferOverran =
-    ::protozero::proto_utils::FieldMetadata<
-      7,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kBool,
-      bool,
-      ProfilePacket_ProcessHeapSamples>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_BufferOverran kBufferOverran() { return {}; }
-  void set_buffer_overran(bool value) {
-    static constexpr uint32_t field_id = FieldMetadata_BufferOverran::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kBool>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_ClientError =
-    ::protozero::proto_utils::FieldMetadata<
-      14,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kEnum,
-      ::perfetto::protos::pbzero::ProfilePacket_ProcessHeapSamples_ClientError,
-      ProfilePacket_ProcessHeapSamples>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_ClientError kClientError() { return {}; }
-  void set_client_error(::perfetto::protos::pbzero::ProfilePacket_ProcessHeapSamples_ClientError value) {
-    static constexpr uint32_t field_id = FieldMetadata_ClientError::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kEnum>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_BufferCorrupted =
-    ::protozero::proto_utils::FieldMetadata<
-      8,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kBool,
-      bool,
-      ProfilePacket_ProcessHeapSamples>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_BufferCorrupted kBufferCorrupted() { return {}; }
-  void set_buffer_corrupted(bool value) {
-    static constexpr uint32_t field_id = FieldMetadata_BufferCorrupted::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kBool>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_HitGuardrail =
-    ::protozero::proto_utils::FieldMetadata<
-      10,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kBool,
-      bool,
-      ProfilePacket_ProcessHeapSamples>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_HitGuardrail kHitGuardrail() { return {}; }
-  void set_hit_guardrail(bool value) {
-    static constexpr uint32_t field_id = FieldMetadata_HitGuardrail::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kBool>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_HeapName =
-    ::protozero::proto_utils::FieldMetadata<
-      11,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kString,
-      std::string,
-      ProfilePacket_ProcessHeapSamples>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_HeapName kHeapName() { return {}; }
-  void set_heap_name(const char* data, size_t size) {
-    AppendBytes(FieldMetadata_HeapName::kFieldId, data, size);
-  }
-  void set_heap_name(std::string value) {
-    static constexpr uint32_t field_id = FieldMetadata_HeapName::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kString>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_SamplingIntervalBytes =
-    ::protozero::proto_utils::FieldMetadata<
-      12,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      ProfilePacket_ProcessHeapSamples>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_SamplingIntervalBytes kSamplingIntervalBytes() { return {}; }
-  void set_sampling_interval_bytes(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_SamplingIntervalBytes::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_OrigSamplingIntervalBytes =
-    ::protozero::proto_utils::FieldMetadata<
-      13,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      ProfilePacket_ProcessHeapSamples>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_OrigSamplingIntervalBytes kOrigSamplingIntervalBytes() { return {}; }
-  void set_orig_sampling_interval_bytes(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_OrigSamplingIntervalBytes::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Timestamp =
-    ::protozero::proto_utils::FieldMetadata<
-      9,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      ProfilePacket_ProcessHeapSamples>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Timestamp kTimestamp() { return {}; }
-  void set_timestamp(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Timestamp::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Stats =
-    ::protozero::proto_utils::FieldMetadata<
-      5,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      ProfilePacket_ProcessStats,
-      ProfilePacket_ProcessHeapSamples>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Stats kStats() { return {}; }
-  template <typename T = ProfilePacket_ProcessStats> T* set_stats() {
-    return BeginNestedMessage<T>(5);
-  }
-
-
-  using FieldMetadata_Samples =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kRepeatedNotPacked,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      ProfilePacket_HeapSample,
-      ProfilePacket_ProcessHeapSamples>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Samples kSamples() { return {}; }
-  template <typename T = ProfilePacket_HeapSample> T* add_samples() {
-    return BeginNestedMessage<T>(2);
-  }
-
-};
-
-class ProfilePacket_ProcessStats_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/6, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  ProfilePacket_ProcessStats_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit ProfilePacket_ProcessStats_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit ProfilePacket_ProcessStats_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_unwinding_errors() const { return at<1>().valid(); }
-  uint64_t unwinding_errors() const { return at<1>().as_uint64(); }
-  bool has_heap_samples() const { return at<2>().valid(); }
-  uint64_t heap_samples() const { return at<2>().as_uint64(); }
-  bool has_map_reparses() const { return at<3>().valid(); }
-  uint64_t map_reparses() const { return at<3>().as_uint64(); }
-  bool has_unwinding_time_us() const { return at<4>().valid(); }
-  ::protozero::ConstBytes unwinding_time_us() const { return at<4>().as_bytes(); }
-  bool has_total_unwinding_time_us() const { return at<5>().valid(); }
-  uint64_t total_unwinding_time_us() const { return at<5>().as_uint64(); }
-  bool has_client_spinlock_blocked_us() const { return at<6>().valid(); }
-  uint64_t client_spinlock_blocked_us() const { return at<6>().as_uint64(); }
-};
-
-class ProfilePacket_ProcessStats : public ::protozero::Message {
- public:
-  using Decoder = ProfilePacket_ProcessStats_Decoder;
-  enum : int32_t {
-    kUnwindingErrorsFieldNumber = 1,
-    kHeapSamplesFieldNumber = 2,
-    kMapReparsesFieldNumber = 3,
-    kUnwindingTimeUsFieldNumber = 4,
-    kTotalUnwindingTimeUsFieldNumber = 5,
-    kClientSpinlockBlockedUsFieldNumber = 6,
-  };
-
-  using FieldMetadata_UnwindingErrors =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      ProfilePacket_ProcessStats>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_UnwindingErrors kUnwindingErrors() { return {}; }
-  void set_unwinding_errors(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_UnwindingErrors::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_HeapSamples =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      ProfilePacket_ProcessStats>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_HeapSamples kHeapSamples() { return {}; }
-  void set_heap_samples(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_HeapSamples::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_MapReparses =
-    ::protozero::proto_utils::FieldMetadata<
-      3,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      ProfilePacket_ProcessStats>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_MapReparses kMapReparses() { return {}; }
-  void set_map_reparses(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_MapReparses::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_UnwindingTimeUs =
-    ::protozero::proto_utils::FieldMetadata<
-      4,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      ProfilePacket_Histogram,
-      ProfilePacket_ProcessStats>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_UnwindingTimeUs kUnwindingTimeUs() { return {}; }
-  template <typename T = ProfilePacket_Histogram> T* set_unwinding_time_us() {
-    return BeginNestedMessage<T>(4);
-  }
-
-
-  using FieldMetadata_TotalUnwindingTimeUs =
-    ::protozero::proto_utils::FieldMetadata<
-      5,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      ProfilePacket_ProcessStats>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_TotalUnwindingTimeUs kTotalUnwindingTimeUs() { return {}; }
-  void set_total_unwinding_time_us(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_TotalUnwindingTimeUs::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_ClientSpinlockBlockedUs =
-    ::protozero::proto_utils::FieldMetadata<
-      6,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      ProfilePacket_ProcessStats>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_ClientSpinlockBlockedUs kClientSpinlockBlockedUs() { return {}; }
-  void set_client_spinlock_blocked_us(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_ClientSpinlockBlockedUs::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-};
-
-class ProfilePacket_Histogram_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/1, /*HAS_NONPACKED_REPEATED_FIELDS=*/true> {
- public:
-  ProfilePacket_Histogram_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit ProfilePacket_Histogram_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit ProfilePacket_Histogram_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_buckets() const { return at<1>().valid(); }
-  ::protozero::RepeatedFieldIterator<::protozero::ConstBytes> buckets() const { return GetRepeated<::protozero::ConstBytes>(1); }
-};
-
-class ProfilePacket_Histogram : public ::protozero::Message {
- public:
-  using Decoder = ProfilePacket_Histogram_Decoder;
-  enum : int32_t {
-    kBucketsFieldNumber = 1,
-  };
-  using Bucket = ::perfetto::protos::pbzero::ProfilePacket_Histogram_Bucket;
-
-  using FieldMetadata_Buckets =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kRepeatedNotPacked,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      ProfilePacket_Histogram_Bucket,
-      ProfilePacket_Histogram>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Buckets kBuckets() { return {}; }
-  template <typename T = ProfilePacket_Histogram_Bucket> T* add_buckets() {
-    return BeginNestedMessage<T>(1);
-  }
-
-};
-
-class ProfilePacket_Histogram_Bucket_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/3, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  ProfilePacket_Histogram_Bucket_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit ProfilePacket_Histogram_Bucket_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit ProfilePacket_Histogram_Bucket_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_upper_limit() const { return at<1>().valid(); }
-  uint64_t upper_limit() const { return at<1>().as_uint64(); }
-  bool has_max_bucket() const { return at<2>().valid(); }
-  bool max_bucket() const { return at<2>().as_bool(); }
-  bool has_count() const { return at<3>().valid(); }
-  uint64_t count() const { return at<3>().as_uint64(); }
-};
-
-class ProfilePacket_Histogram_Bucket : public ::protozero::Message {
- public:
-  using Decoder = ProfilePacket_Histogram_Bucket_Decoder;
-  enum : int32_t {
-    kUpperLimitFieldNumber = 1,
-    kMaxBucketFieldNumber = 2,
-    kCountFieldNumber = 3,
-  };
-
-  using FieldMetadata_UpperLimit =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      ProfilePacket_Histogram_Bucket>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_UpperLimit kUpperLimit() { return {}; }
-  void set_upper_limit(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_UpperLimit::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_MaxBucket =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kBool,
-      bool,
-      ProfilePacket_Histogram_Bucket>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_MaxBucket kMaxBucket() { return {}; }
-  void set_max_bucket(bool value) {
-    static constexpr uint32_t field_id = FieldMetadata_MaxBucket::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kBool>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Count =
-    ::protozero::proto_utils::FieldMetadata<
-      3,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      ProfilePacket_Histogram_Bucket>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Count kCount() { return {}; }
-  void set_count(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Count::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-};
-
-class ProfilePacket_HeapSample_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/9, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  ProfilePacket_HeapSample_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit ProfilePacket_HeapSample_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit ProfilePacket_HeapSample_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_callstack_id() const { return at<1>().valid(); }
-  uint64_t callstack_id() const { return at<1>().as_uint64(); }
-  bool has_self_allocated() const { return at<2>().valid(); }
-  uint64_t self_allocated() const { return at<2>().as_uint64(); }
-  bool has_self_freed() const { return at<3>().valid(); }
-  uint64_t self_freed() const { return at<3>().as_uint64(); }
-  bool has_self_max() const { return at<8>().valid(); }
-  uint64_t self_max() const { return at<8>().as_uint64(); }
-  bool has_self_max_count() const { return at<9>().valid(); }
-  uint64_t self_max_count() const { return at<9>().as_uint64(); }
-  bool has_timestamp() const { return at<4>().valid(); }
-  uint64_t timestamp() const { return at<4>().as_uint64(); }
-  bool has_alloc_count() const { return at<5>().valid(); }
-  uint64_t alloc_count() const { return at<5>().as_uint64(); }
-  bool has_free_count() const { return at<6>().valid(); }
-  uint64_t free_count() const { return at<6>().as_uint64(); }
-};
-
-class ProfilePacket_HeapSample : public ::protozero::Message {
- public:
-  using Decoder = ProfilePacket_HeapSample_Decoder;
-  enum : int32_t {
-    kCallstackIdFieldNumber = 1,
-    kSelfAllocatedFieldNumber = 2,
-    kSelfFreedFieldNumber = 3,
-    kSelfMaxFieldNumber = 8,
-    kSelfMaxCountFieldNumber = 9,
-    kTimestampFieldNumber = 4,
-    kAllocCountFieldNumber = 5,
-    kFreeCountFieldNumber = 6,
-  };
-
-  using FieldMetadata_CallstackId =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      ProfilePacket_HeapSample>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_CallstackId kCallstackId() { return {}; }
-  void set_callstack_id(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_CallstackId::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_SelfAllocated =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      ProfilePacket_HeapSample>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_SelfAllocated kSelfAllocated() { return {}; }
-  void set_self_allocated(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_SelfAllocated::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_SelfFreed =
-    ::protozero::proto_utils::FieldMetadata<
-      3,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      ProfilePacket_HeapSample>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_SelfFreed kSelfFreed() { return {}; }
-  void set_self_freed(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_SelfFreed::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_SelfMax =
-    ::protozero::proto_utils::FieldMetadata<
-      8,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      ProfilePacket_HeapSample>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_SelfMax kSelfMax() { return {}; }
-  void set_self_max(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_SelfMax::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_SelfMaxCount =
-    ::protozero::proto_utils::FieldMetadata<
-      9,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      ProfilePacket_HeapSample>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_SelfMaxCount kSelfMaxCount() { return {}; }
-  void set_self_max_count(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_SelfMaxCount::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Timestamp =
-    ::protozero::proto_utils::FieldMetadata<
-      4,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      ProfilePacket_HeapSample>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Timestamp kTimestamp() { return {}; }
-  void set_timestamp(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Timestamp::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_AllocCount =
-    ::protozero::proto_utils::FieldMetadata<
-      5,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      ProfilePacket_HeapSample>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_AllocCount kAllocCount() { return {}; }
-  void set_alloc_count(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_AllocCount::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_FreeCount =
-    ::protozero::proto_utils::FieldMetadata<
-      6,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      ProfilePacket_HeapSample>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_FreeCount kFreeCount() { return {}; }
-  void set_free_count(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_FreeCount::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-};
-
-} // Namespace.
-} // Namespace.
-} // Namespace.
-#endif  // Include guard.
-// gen_amalgamated begin header: gen/protos/perfetto/trace/profiling/smaps.pbzero.h
-// Autogenerated by the ProtoZero compiler plugin. DO NOT EDIT.
-
-#ifndef PERFETTO_PROTOS_PROTOS_PERFETTO_TRACE_PROFILING_SMAPS_PROTO_H_
-#define PERFETTO_PROTOS_PROTOS_PERFETTO_TRACE_PROFILING_SMAPS_PROTO_H_
-
-#include <stddef.h>
-#include <stdint.h>
-
-// gen_amalgamated expanded: #include "perfetto/protozero/field_writer.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/message.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/packed_repeated_fields.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/proto_decoder.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/proto_utils.h"
-
-namespace perfetto {
-namespace protos {
-namespace pbzero {
-
-class SmapsEntry;
-
-class SmapsPacket_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/2, /*HAS_NONPACKED_REPEATED_FIELDS=*/true> {
- public:
-  SmapsPacket_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit SmapsPacket_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit SmapsPacket_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_pid() const { return at<1>().valid(); }
-  uint32_t pid() const { return at<1>().as_uint32(); }
-  bool has_entries() const { return at<2>().valid(); }
-  ::protozero::RepeatedFieldIterator<::protozero::ConstBytes> entries() const { return GetRepeated<::protozero::ConstBytes>(2); }
-};
-
-class SmapsPacket : public ::protozero::Message {
- public:
-  using Decoder = SmapsPacket_Decoder;
-  enum : int32_t {
-    kPidFieldNumber = 1,
-    kEntriesFieldNumber = 2,
-  };
-
-  using FieldMetadata_Pid =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      SmapsPacket>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Pid kPid() { return {}; }
-  void set_pid(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Pid::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Entries =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kRepeatedNotPacked,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      SmapsEntry,
-      SmapsPacket>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Entries kEntries() { return {}; }
-  template <typename T = SmapsEntry> T* add_entries() {
-    return BeginNestedMessage<T>(2);
-  }
-
-};
-
-class SmapsEntry_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/15, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  SmapsEntry_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit SmapsEntry_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit SmapsEntry_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_path() const { return at<1>().valid(); }
-  ::protozero::ConstChars path() const { return at<1>().as_string(); }
-  bool has_size_kb() const { return at<2>().valid(); }
-  uint64_t size_kb() const { return at<2>().as_uint64(); }
-  bool has_private_dirty_kb() const { return at<3>().valid(); }
-  uint64_t private_dirty_kb() const { return at<3>().as_uint64(); }
-  bool has_swap_kb() const { return at<4>().valid(); }
-  uint64_t swap_kb() const { return at<4>().as_uint64(); }
-  bool has_file_name() const { return at<5>().valid(); }
-  ::protozero::ConstChars file_name() const { return at<5>().as_string(); }
-  bool has_start_address() const { return at<6>().valid(); }
-  uint64_t start_address() const { return at<6>().as_uint64(); }
-  bool has_module_timestamp() const { return at<7>().valid(); }
-  uint64_t module_timestamp() const { return at<7>().as_uint64(); }
-  bool has_module_debugid() const { return at<8>().valid(); }
-  ::protozero::ConstChars module_debugid() const { return at<8>().as_string(); }
-  bool has_module_debug_path() const { return at<9>().valid(); }
-  ::protozero::ConstChars module_debug_path() const { return at<9>().as_string(); }
-  bool has_protection_flags() const { return at<10>().valid(); }
-  uint32_t protection_flags() const { return at<10>().as_uint32(); }
-  bool has_private_clean_resident_kb() const { return at<11>().valid(); }
-  uint64_t private_clean_resident_kb() const { return at<11>().as_uint64(); }
-  bool has_shared_dirty_resident_kb() const { return at<12>().valid(); }
-  uint64_t shared_dirty_resident_kb() const { return at<12>().as_uint64(); }
-  bool has_shared_clean_resident_kb() const { return at<13>().valid(); }
-  uint64_t shared_clean_resident_kb() const { return at<13>().as_uint64(); }
-  bool has_locked_kb() const { return at<14>().valid(); }
-  uint64_t locked_kb() const { return at<14>().as_uint64(); }
-  bool has_proportional_resident_kb() const { return at<15>().valid(); }
-  uint64_t proportional_resident_kb() const { return at<15>().as_uint64(); }
-};
-
-class SmapsEntry : public ::protozero::Message {
- public:
-  using Decoder = SmapsEntry_Decoder;
-  enum : int32_t {
-    kPathFieldNumber = 1,
-    kSizeKbFieldNumber = 2,
-    kPrivateDirtyKbFieldNumber = 3,
-    kSwapKbFieldNumber = 4,
-    kFileNameFieldNumber = 5,
-    kStartAddressFieldNumber = 6,
-    kModuleTimestampFieldNumber = 7,
-    kModuleDebugidFieldNumber = 8,
-    kModuleDebugPathFieldNumber = 9,
-    kProtectionFlagsFieldNumber = 10,
-    kPrivateCleanResidentKbFieldNumber = 11,
-    kSharedDirtyResidentKbFieldNumber = 12,
-    kSharedCleanResidentKbFieldNumber = 13,
-    kLockedKbFieldNumber = 14,
-    kProportionalResidentKbFieldNumber = 15,
-  };
-
-  using FieldMetadata_Path =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kString,
-      std::string,
-      SmapsEntry>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Path kPath() { return {}; }
-  void set_path(const char* data, size_t size) {
-    AppendBytes(FieldMetadata_Path::kFieldId, data, size);
-  }
-  void set_path(std::string value) {
-    static constexpr uint32_t field_id = FieldMetadata_Path::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kString>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_SizeKb =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      SmapsEntry>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_SizeKb kSizeKb() { return {}; }
-  void set_size_kb(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_SizeKb::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_PrivateDirtyKb =
-    ::protozero::proto_utils::FieldMetadata<
-      3,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      SmapsEntry>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_PrivateDirtyKb kPrivateDirtyKb() { return {}; }
-  void set_private_dirty_kb(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_PrivateDirtyKb::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_SwapKb =
-    ::protozero::proto_utils::FieldMetadata<
-      4,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      SmapsEntry>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_SwapKb kSwapKb() { return {}; }
-  void set_swap_kb(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_SwapKb::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_FileName =
-    ::protozero::proto_utils::FieldMetadata<
-      5,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kString,
-      std::string,
-      SmapsEntry>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_FileName kFileName() { return {}; }
-  void set_file_name(const char* data, size_t size) {
-    AppendBytes(FieldMetadata_FileName::kFieldId, data, size);
-  }
-  void set_file_name(std::string value) {
-    static constexpr uint32_t field_id = FieldMetadata_FileName::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kString>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_StartAddress =
-    ::protozero::proto_utils::FieldMetadata<
-      6,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      SmapsEntry>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_StartAddress kStartAddress() { return {}; }
-  void set_start_address(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_StartAddress::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_ModuleTimestamp =
-    ::protozero::proto_utils::FieldMetadata<
-      7,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      SmapsEntry>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_ModuleTimestamp kModuleTimestamp() { return {}; }
-  void set_module_timestamp(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_ModuleTimestamp::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_ModuleDebugid =
-    ::protozero::proto_utils::FieldMetadata<
-      8,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kString,
-      std::string,
-      SmapsEntry>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_ModuleDebugid kModuleDebugid() { return {}; }
-  void set_module_debugid(const char* data, size_t size) {
-    AppendBytes(FieldMetadata_ModuleDebugid::kFieldId, data, size);
-  }
-  void set_module_debugid(std::string value) {
-    static constexpr uint32_t field_id = FieldMetadata_ModuleDebugid::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kString>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_ModuleDebugPath =
-    ::protozero::proto_utils::FieldMetadata<
-      9,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kString,
-      std::string,
-      SmapsEntry>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_ModuleDebugPath kModuleDebugPath() { return {}; }
-  void set_module_debug_path(const char* data, size_t size) {
-    AppendBytes(FieldMetadata_ModuleDebugPath::kFieldId, data, size);
-  }
-  void set_module_debug_path(std::string value) {
-    static constexpr uint32_t field_id = FieldMetadata_ModuleDebugPath::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kString>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_ProtectionFlags =
-    ::protozero::proto_utils::FieldMetadata<
-      10,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      SmapsEntry>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_ProtectionFlags kProtectionFlags() { return {}; }
-  void set_protection_flags(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_ProtectionFlags::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_PrivateCleanResidentKb =
-    ::protozero::proto_utils::FieldMetadata<
-      11,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      SmapsEntry>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_PrivateCleanResidentKb kPrivateCleanResidentKb() { return {}; }
-  void set_private_clean_resident_kb(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_PrivateCleanResidentKb::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_SharedDirtyResidentKb =
-    ::protozero::proto_utils::FieldMetadata<
-      12,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      SmapsEntry>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_SharedDirtyResidentKb kSharedDirtyResidentKb() { return {}; }
-  void set_shared_dirty_resident_kb(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_SharedDirtyResidentKb::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_SharedCleanResidentKb =
-    ::protozero::proto_utils::FieldMetadata<
-      13,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      SmapsEntry>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_SharedCleanResidentKb kSharedCleanResidentKb() { return {}; }
-  void set_shared_clean_resident_kb(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_SharedCleanResidentKb::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_LockedKb =
-    ::protozero::proto_utils::FieldMetadata<
-      14,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      SmapsEntry>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_LockedKb kLockedKb() { return {}; }
-  void set_locked_kb(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_LockedKb::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_ProportionalResidentKb =
-    ::protozero::proto_utils::FieldMetadata<
-      15,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      SmapsEntry>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_ProportionalResidentKb kProportionalResidentKb() { return {}; }
-  void set_proportional_resident_kb(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_ProportionalResidentKb::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-};
-
-} // Namespace.
-} // Namespace.
-} // Namespace.
-#endif  // Include guard.
-// gen_amalgamated begin header: gen/protos/perfetto/trace/track_event/chrome_application_state_info.pbzero.h
-// Autogenerated by the ProtoZero compiler plugin. DO NOT EDIT.
-
-#ifndef PERFETTO_PROTOS_PROTOS_PERFETTO_TRACE_TRACK_EVENT_CHROME_APPLICATION_STATE_INFO_PROTO_H_
-#define PERFETTO_PROTOS_PROTOS_PERFETTO_TRACE_TRACK_EVENT_CHROME_APPLICATION_STATE_INFO_PROTO_H_
-
-#include <stddef.h>
-#include <stdint.h>
-
-// gen_amalgamated expanded: #include "perfetto/protozero/field_writer.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/message.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/packed_repeated_fields.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/proto_decoder.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/proto_utils.h"
-
-namespace perfetto {
-namespace protos {
-namespace pbzero {
-
-enum ChromeApplicationStateInfo_ChromeApplicationState : int32_t;
-
-enum ChromeApplicationStateInfo_ChromeApplicationState : int32_t {
-  ChromeApplicationStateInfo_ChromeApplicationState_APPLICATION_STATE_UNKNOWN = 0,
-  ChromeApplicationStateInfo_ChromeApplicationState_APPLICATION_STATE_HAS_RUNNING_ACTIVITIES = 1,
-  ChromeApplicationStateInfo_ChromeApplicationState_APPLICATION_STATE_HAS_PAUSED_ACTIVITIES = 2,
-  ChromeApplicationStateInfo_ChromeApplicationState_APPLICATION_STATE_HAS_STOPPED_ACTIVITIES = 3,
-  ChromeApplicationStateInfo_ChromeApplicationState_APPLICATION_STATE_HAS_DESTROYED_ACTIVITIES = 4,
-};
-
-const ChromeApplicationStateInfo_ChromeApplicationState ChromeApplicationStateInfo_ChromeApplicationState_MIN = ChromeApplicationStateInfo_ChromeApplicationState_APPLICATION_STATE_UNKNOWN;
-const ChromeApplicationStateInfo_ChromeApplicationState ChromeApplicationStateInfo_ChromeApplicationState_MAX = ChromeApplicationStateInfo_ChromeApplicationState_APPLICATION_STATE_HAS_DESTROYED_ACTIVITIES;
-
-class ChromeApplicationStateInfo_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/1, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  ChromeApplicationStateInfo_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit ChromeApplicationStateInfo_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit ChromeApplicationStateInfo_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_application_state() const { return at<1>().valid(); }
-  int32_t application_state() const { return at<1>().as_int32(); }
-};
-
-class ChromeApplicationStateInfo : public ::protozero::Message {
- public:
-  using Decoder = ChromeApplicationStateInfo_Decoder;
-  enum : int32_t {
-    kApplicationStateFieldNumber = 1,
-  };
-  using ChromeApplicationState = ::perfetto::protos::pbzero::ChromeApplicationStateInfo_ChromeApplicationState;
-  static const ChromeApplicationState APPLICATION_STATE_UNKNOWN = ChromeApplicationStateInfo_ChromeApplicationState_APPLICATION_STATE_UNKNOWN;
-  static const ChromeApplicationState APPLICATION_STATE_HAS_RUNNING_ACTIVITIES = ChromeApplicationStateInfo_ChromeApplicationState_APPLICATION_STATE_HAS_RUNNING_ACTIVITIES;
-  static const ChromeApplicationState APPLICATION_STATE_HAS_PAUSED_ACTIVITIES = ChromeApplicationStateInfo_ChromeApplicationState_APPLICATION_STATE_HAS_PAUSED_ACTIVITIES;
-  static const ChromeApplicationState APPLICATION_STATE_HAS_STOPPED_ACTIVITIES = ChromeApplicationStateInfo_ChromeApplicationState_APPLICATION_STATE_HAS_STOPPED_ACTIVITIES;
-  static const ChromeApplicationState APPLICATION_STATE_HAS_DESTROYED_ACTIVITIES = ChromeApplicationStateInfo_ChromeApplicationState_APPLICATION_STATE_HAS_DESTROYED_ACTIVITIES;
-
-  using FieldMetadata_ApplicationState =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kEnum,
-      ::perfetto::protos::pbzero::ChromeApplicationStateInfo_ChromeApplicationState,
-      ChromeApplicationStateInfo>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_ApplicationState kApplicationState() { return {}; }
-  void set_application_state(::perfetto::protos::pbzero::ChromeApplicationStateInfo_ChromeApplicationState value) {
-    static constexpr uint32_t field_id = FieldMetadata_ApplicationState::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kEnum>
-        ::Append(*this, field_id, value);
-  }
-};
-
-} // Namespace.
-} // Namespace.
-} // Namespace.
-#endif  // Include guard.
-// gen_amalgamated begin header: gen/protos/perfetto/trace/track_event/chrome_compositor_scheduler_state.pbzero.h
-// Autogenerated by the ProtoZero compiler plugin. DO NOT EDIT.
-
-#ifndef PERFETTO_PROTOS_PROTOS_PERFETTO_TRACE_TRACK_EVENT_CHROME_COMPOSITOR_SCHEDULER_STATE_PROTO_H_
-#define PERFETTO_PROTOS_PROTOS_PERFETTO_TRACE_TRACK_EVENT_CHROME_COMPOSITOR_SCHEDULER_STATE_PROTO_H_
-
-#include <stddef.h>
-#include <stdint.h>
-
-// gen_amalgamated expanded: #include "perfetto/protozero/field_writer.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/message.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/packed_repeated_fields.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/proto_decoder.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/proto_utils.h"
-
-namespace perfetto {
-namespace protos {
-namespace pbzero {
-
-class BeginFrameArgs;
-class BeginFrameObserverState;
-class BeginFrameSourceState;
-class BeginImplFrameArgs;
-class BeginImplFrameArgs_TimestampsInUs;
-class ChromeCompositorStateMachine;
-class ChromeCompositorStateMachine_MajorState;
-class ChromeCompositorStateMachine_MinorState;
-class CompositorTimingHistory;
-class SourceLocation;
-enum BeginFrameArgs_BeginFrameArgsType : int32_t;
-enum BeginImplFrameArgs_State : int32_t;
-enum ChromeCompositorSchedulerAction : int32_t;
-enum ChromeCompositorSchedulerState_BeginImplFrameDeadlineMode : int32_t;
-enum ChromeCompositorStateMachine_MajorState_BeginImplFrameState : int32_t;
-enum ChromeCompositorStateMachine_MajorState_BeginMainFrameState : int32_t;
-enum ChromeCompositorStateMachine_MajorState_ForcedRedrawOnTimeoutState : int32_t;
-enum ChromeCompositorStateMachine_MajorState_LayerTreeFrameSinkState : int32_t;
-enum ChromeCompositorStateMachine_MinorState_ScrollHandlerState : int32_t;
-enum ChromeCompositorStateMachine_MinorState_TreePriority : int32_t;
-
-enum ChromeCompositorSchedulerAction : int32_t {
-  CC_SCHEDULER_ACTION_UNSPECIFIED = 0,
-  CC_SCHEDULER_ACTION_NONE = 1,
-  CC_SCHEDULER_ACTION_SEND_BEGIN_MAIN_FRAME = 2,
-  CC_SCHEDULER_ACTION_COMMIT = 3,
-  CC_SCHEDULER_ACTION_ACTIVATE_SYNC_TREE = 4,
-  CC_SCHEDULER_ACTION_DRAW_IF_POSSIBLE = 5,
-  CC_SCHEDULER_ACTION_DRAW_FORCED = 6,
-  CC_SCHEDULER_ACTION_DRAW_ABORT = 7,
-  CC_SCHEDULER_ACTION_BEGIN_LAYER_TREE_FRAME_SINK_CREATION = 8,
-  CC_SCHEDULER_ACTION_PREPARE_TILES = 9,
-  CC_SCHEDULER_ACTION_INVALIDATE_LAYER_TREE_FRAME_SINK = 10,
-  CC_SCHEDULER_ACTION_PERFORM_IMPL_SIDE_INVALIDATION = 11,
-  CC_SCHEDULER_ACTION_NOTIFY_BEGIN_MAIN_FRAME_NOT_EXPECTED_UNTIL = 12,
-  CC_SCHEDULER_ACTION_NOTIFY_BEGIN_MAIN_FRAME_NOT_EXPECTED_SOON = 13,
-};
-
-const ChromeCompositorSchedulerAction ChromeCompositorSchedulerAction_MIN = CC_SCHEDULER_ACTION_UNSPECIFIED;
-const ChromeCompositorSchedulerAction ChromeCompositorSchedulerAction_MAX = CC_SCHEDULER_ACTION_NOTIFY_BEGIN_MAIN_FRAME_NOT_EXPECTED_SOON;
-
-enum BeginImplFrameArgs_State : int32_t {
-  BeginImplFrameArgs_State_BEGIN_FRAME_FINISHED = 0,
-  BeginImplFrameArgs_State_BEGIN_FRAME_USING = 1,
-};
-
-const BeginImplFrameArgs_State BeginImplFrameArgs_State_MIN = BeginImplFrameArgs_State_BEGIN_FRAME_FINISHED;
-const BeginImplFrameArgs_State BeginImplFrameArgs_State_MAX = BeginImplFrameArgs_State_BEGIN_FRAME_USING;
-
-enum BeginFrameArgs_BeginFrameArgsType : int32_t {
-  BeginFrameArgs_BeginFrameArgsType_BEGIN_FRAME_ARGS_TYPE_UNSPECIFIED = 0,
-  BeginFrameArgs_BeginFrameArgsType_BEGIN_FRAME_ARGS_TYPE_INVALID = 1,
-  BeginFrameArgs_BeginFrameArgsType_BEGIN_FRAME_ARGS_TYPE_NORMAL = 2,
-  BeginFrameArgs_BeginFrameArgsType_BEGIN_FRAME_ARGS_TYPE_MISSED = 3,
-};
-
-const BeginFrameArgs_BeginFrameArgsType BeginFrameArgs_BeginFrameArgsType_MIN = BeginFrameArgs_BeginFrameArgsType_BEGIN_FRAME_ARGS_TYPE_UNSPECIFIED;
-const BeginFrameArgs_BeginFrameArgsType BeginFrameArgs_BeginFrameArgsType_MAX = BeginFrameArgs_BeginFrameArgsType_BEGIN_FRAME_ARGS_TYPE_MISSED;
-
-enum ChromeCompositorStateMachine_MinorState_TreePriority : int32_t {
-  ChromeCompositorStateMachine_MinorState_TreePriority_TREE_PRIORITY_UNSPECIFIED = 0,
-  ChromeCompositorStateMachine_MinorState_TreePriority_TREE_PRIORITY_SAME_PRIORITY_FOR_BOTH_TREES = 1,
-  ChromeCompositorStateMachine_MinorState_TreePriority_TREE_PRIORITY_SMOOTHNESS_TAKES_PRIORITY = 2,
-  ChromeCompositorStateMachine_MinorState_TreePriority_TREE_PRIORITY_NEW_CONTENT_TAKES_PRIORITY = 3,
-};
-
-const ChromeCompositorStateMachine_MinorState_TreePriority ChromeCompositorStateMachine_MinorState_TreePriority_MIN = ChromeCompositorStateMachine_MinorState_TreePriority_TREE_PRIORITY_UNSPECIFIED;
-const ChromeCompositorStateMachine_MinorState_TreePriority ChromeCompositorStateMachine_MinorState_TreePriority_MAX = ChromeCompositorStateMachine_MinorState_TreePriority_TREE_PRIORITY_NEW_CONTENT_TAKES_PRIORITY;
-
-enum ChromeCompositorStateMachine_MinorState_ScrollHandlerState : int32_t {
-  ChromeCompositorStateMachine_MinorState_ScrollHandlerState_SCROLL_HANDLER_UNSPECIFIED = 0,
-  ChromeCompositorStateMachine_MinorState_ScrollHandlerState_SCROLL_AFFECTS_SCROLL_HANDLER = 1,
-  ChromeCompositorStateMachine_MinorState_ScrollHandlerState_SCROLL_DOES_NOT_AFFECT_SCROLL_HANDLER = 2,
-};
-
-const ChromeCompositorStateMachine_MinorState_ScrollHandlerState ChromeCompositorStateMachine_MinorState_ScrollHandlerState_MIN = ChromeCompositorStateMachine_MinorState_ScrollHandlerState_SCROLL_HANDLER_UNSPECIFIED;
-const ChromeCompositorStateMachine_MinorState_ScrollHandlerState ChromeCompositorStateMachine_MinorState_ScrollHandlerState_MAX = ChromeCompositorStateMachine_MinorState_ScrollHandlerState_SCROLL_DOES_NOT_AFFECT_SCROLL_HANDLER;
-
-enum ChromeCompositorStateMachine_MajorState_BeginImplFrameState : int32_t {
-  ChromeCompositorStateMachine_MajorState_BeginImplFrameState_BEGIN_IMPL_FRAME_UNSPECIFIED = 0,
-  ChromeCompositorStateMachine_MajorState_BeginImplFrameState_BEGIN_IMPL_FRAME_IDLE = 1,
-  ChromeCompositorStateMachine_MajorState_BeginImplFrameState_BEGIN_IMPL_FRAME_INSIDE_BEGIN_FRAME = 2,
-  ChromeCompositorStateMachine_MajorState_BeginImplFrameState_BEGIN_IMPL_FRAME_INSIDE_DEADLINE = 3,
-};
-
-const ChromeCompositorStateMachine_MajorState_BeginImplFrameState ChromeCompositorStateMachine_MajorState_BeginImplFrameState_MIN = ChromeCompositorStateMachine_MajorState_BeginImplFrameState_BEGIN_IMPL_FRAME_UNSPECIFIED;
-const ChromeCompositorStateMachine_MajorState_BeginImplFrameState ChromeCompositorStateMachine_MajorState_BeginImplFrameState_MAX = ChromeCompositorStateMachine_MajorState_BeginImplFrameState_BEGIN_IMPL_FRAME_INSIDE_DEADLINE;
-
-enum ChromeCompositorStateMachine_MajorState_BeginMainFrameState : int32_t {
-  ChromeCompositorStateMachine_MajorState_BeginMainFrameState_BEGIN_MAIN_FRAME_UNSPECIFIED = 0,
-  ChromeCompositorStateMachine_MajorState_BeginMainFrameState_BEGIN_MAIN_FRAME_IDLE = 1,
-  ChromeCompositorStateMachine_MajorState_BeginMainFrameState_BEGIN_MAIN_FRAME_SENT = 2,
-  ChromeCompositorStateMachine_MajorState_BeginMainFrameState_BEGIN_MAIN_FRAME_READY_TO_COMMIT = 3,
-};
-
-const ChromeCompositorStateMachine_MajorState_BeginMainFrameState ChromeCompositorStateMachine_MajorState_BeginMainFrameState_MIN = ChromeCompositorStateMachine_MajorState_BeginMainFrameState_BEGIN_MAIN_FRAME_UNSPECIFIED;
-const ChromeCompositorStateMachine_MajorState_BeginMainFrameState ChromeCompositorStateMachine_MajorState_BeginMainFrameState_MAX = ChromeCompositorStateMachine_MajorState_BeginMainFrameState_BEGIN_MAIN_FRAME_READY_TO_COMMIT;
-
-enum ChromeCompositorStateMachine_MajorState_LayerTreeFrameSinkState : int32_t {
-  ChromeCompositorStateMachine_MajorState_LayerTreeFrameSinkState_LAYER_TREE_FRAME_UNSPECIFIED = 0,
-  ChromeCompositorStateMachine_MajorState_LayerTreeFrameSinkState_LAYER_TREE_FRAME_NONE = 1,
-  ChromeCompositorStateMachine_MajorState_LayerTreeFrameSinkState_LAYER_TREE_FRAME_ACTIVE = 2,
-  ChromeCompositorStateMachine_MajorState_LayerTreeFrameSinkState_LAYER_TREE_FRAME_CREATING = 3,
-  ChromeCompositorStateMachine_MajorState_LayerTreeFrameSinkState_LAYER_TREE_FRAME_WAITING_FOR_FIRST_COMMIT = 4,
-  ChromeCompositorStateMachine_MajorState_LayerTreeFrameSinkState_LAYER_TREE_FRAME_WAITING_FOR_FIRST_ACTIVATION = 5,
-};
-
-const ChromeCompositorStateMachine_MajorState_LayerTreeFrameSinkState ChromeCompositorStateMachine_MajorState_LayerTreeFrameSinkState_MIN = ChromeCompositorStateMachine_MajorState_LayerTreeFrameSinkState_LAYER_TREE_FRAME_UNSPECIFIED;
-const ChromeCompositorStateMachine_MajorState_LayerTreeFrameSinkState ChromeCompositorStateMachine_MajorState_LayerTreeFrameSinkState_MAX = ChromeCompositorStateMachine_MajorState_LayerTreeFrameSinkState_LAYER_TREE_FRAME_WAITING_FOR_FIRST_ACTIVATION;
-
-enum ChromeCompositorStateMachine_MajorState_ForcedRedrawOnTimeoutState : int32_t {
-  ChromeCompositorStateMachine_MajorState_ForcedRedrawOnTimeoutState_FORCED_REDRAW_UNSPECIFIED = 0,
-  ChromeCompositorStateMachine_MajorState_ForcedRedrawOnTimeoutState_FORCED_REDRAW_IDLE = 1,
-  ChromeCompositorStateMachine_MajorState_ForcedRedrawOnTimeoutState_FORCED_REDRAW_WAITING_FOR_COMMIT = 2,
-  ChromeCompositorStateMachine_MajorState_ForcedRedrawOnTimeoutState_FORCED_REDRAW_WAITING_FOR_ACTIVATION = 3,
-  ChromeCompositorStateMachine_MajorState_ForcedRedrawOnTimeoutState_FORCED_REDRAW_WAITING_FOR_DRAW = 4,
-};
-
-const ChromeCompositorStateMachine_MajorState_ForcedRedrawOnTimeoutState ChromeCompositorStateMachine_MajorState_ForcedRedrawOnTimeoutState_MIN = ChromeCompositorStateMachine_MajorState_ForcedRedrawOnTimeoutState_FORCED_REDRAW_UNSPECIFIED;
-const ChromeCompositorStateMachine_MajorState_ForcedRedrawOnTimeoutState ChromeCompositorStateMachine_MajorState_ForcedRedrawOnTimeoutState_MAX = ChromeCompositorStateMachine_MajorState_ForcedRedrawOnTimeoutState_FORCED_REDRAW_WAITING_FOR_DRAW;
-
-enum ChromeCompositorSchedulerState_BeginImplFrameDeadlineMode : int32_t {
-  ChromeCompositorSchedulerState_BeginImplFrameDeadlineMode_DEADLINE_MODE_UNSPECIFIED = 0,
-  ChromeCompositorSchedulerState_BeginImplFrameDeadlineMode_DEADLINE_MODE_NONE = 1,
-  ChromeCompositorSchedulerState_BeginImplFrameDeadlineMode_DEADLINE_MODE_IMMEDIATE = 2,
-  ChromeCompositorSchedulerState_BeginImplFrameDeadlineMode_DEADLINE_MODE_REGULAR = 3,
-  ChromeCompositorSchedulerState_BeginImplFrameDeadlineMode_DEADLINE_MODE_LATE = 4,
-  ChromeCompositorSchedulerState_BeginImplFrameDeadlineMode_DEADLINE_MODE_BLOCKED = 5,
-};
-
-const ChromeCompositorSchedulerState_BeginImplFrameDeadlineMode ChromeCompositorSchedulerState_BeginImplFrameDeadlineMode_MIN = ChromeCompositorSchedulerState_BeginImplFrameDeadlineMode_DEADLINE_MODE_UNSPECIFIED;
-const ChromeCompositorSchedulerState_BeginImplFrameDeadlineMode ChromeCompositorSchedulerState_BeginImplFrameDeadlineMode_MAX = ChromeCompositorSchedulerState_BeginImplFrameDeadlineMode_DEADLINE_MODE_BLOCKED;
-
-class CompositorTimingHistory_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/7, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  CompositorTimingHistory_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit CompositorTimingHistory_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit CompositorTimingHistory_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_begin_main_frame_queue_critical_estimate_delta_us() const { return at<1>().valid(); }
-  int64_t begin_main_frame_queue_critical_estimate_delta_us() const { return at<1>().as_int64(); }
-  bool has_begin_main_frame_queue_not_critical_estimate_delta_us() const { return at<2>().valid(); }
-  int64_t begin_main_frame_queue_not_critical_estimate_delta_us() const { return at<2>().as_int64(); }
-  bool has_begin_main_frame_start_to_ready_to_commit_estimate_delta_us() const { return at<3>().valid(); }
-  int64_t begin_main_frame_start_to_ready_to_commit_estimate_delta_us() const { return at<3>().as_int64(); }
-  bool has_commit_to_ready_to_activate_estimate_delta_us() const { return at<4>().valid(); }
-  int64_t commit_to_ready_to_activate_estimate_delta_us() const { return at<4>().as_int64(); }
-  bool has_prepare_tiles_estimate_delta_us() const { return at<5>().valid(); }
-  int64_t prepare_tiles_estimate_delta_us() const { return at<5>().as_int64(); }
-  bool has_activate_estimate_delta_us() const { return at<6>().valid(); }
-  int64_t activate_estimate_delta_us() const { return at<6>().as_int64(); }
-  bool has_draw_estimate_delta_us() const { return at<7>().valid(); }
-  int64_t draw_estimate_delta_us() const { return at<7>().as_int64(); }
-};
-
-class CompositorTimingHistory : public ::protozero::Message {
- public:
-  using Decoder = CompositorTimingHistory_Decoder;
-  enum : int32_t {
-    kBeginMainFrameQueueCriticalEstimateDeltaUsFieldNumber = 1,
-    kBeginMainFrameQueueNotCriticalEstimateDeltaUsFieldNumber = 2,
-    kBeginMainFrameStartToReadyToCommitEstimateDeltaUsFieldNumber = 3,
-    kCommitToReadyToActivateEstimateDeltaUsFieldNumber = 4,
-    kPrepareTilesEstimateDeltaUsFieldNumber = 5,
-    kActivateEstimateDeltaUsFieldNumber = 6,
-    kDrawEstimateDeltaUsFieldNumber = 7,
-  };
-
-  using FieldMetadata_BeginMainFrameQueueCriticalEstimateDeltaUs =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt64,
-      int64_t,
-      CompositorTimingHistory>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_BeginMainFrameQueueCriticalEstimateDeltaUs kBeginMainFrameQueueCriticalEstimateDeltaUs() { return {}; }
-  void set_begin_main_frame_queue_critical_estimate_delta_us(int64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_BeginMainFrameQueueCriticalEstimateDeltaUs::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_BeginMainFrameQueueNotCriticalEstimateDeltaUs =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt64,
-      int64_t,
-      CompositorTimingHistory>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_BeginMainFrameQueueNotCriticalEstimateDeltaUs kBeginMainFrameQueueNotCriticalEstimateDeltaUs() { return {}; }
-  void set_begin_main_frame_queue_not_critical_estimate_delta_us(int64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_BeginMainFrameQueueNotCriticalEstimateDeltaUs::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_BeginMainFrameStartToReadyToCommitEstimateDeltaUs =
-    ::protozero::proto_utils::FieldMetadata<
-      3,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt64,
-      int64_t,
-      CompositorTimingHistory>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_BeginMainFrameStartToReadyToCommitEstimateDeltaUs kBeginMainFrameStartToReadyToCommitEstimateDeltaUs() { return {}; }
-  void set_begin_main_frame_start_to_ready_to_commit_estimate_delta_us(int64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_BeginMainFrameStartToReadyToCommitEstimateDeltaUs::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_CommitToReadyToActivateEstimateDeltaUs =
-    ::protozero::proto_utils::FieldMetadata<
-      4,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt64,
-      int64_t,
-      CompositorTimingHistory>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_CommitToReadyToActivateEstimateDeltaUs kCommitToReadyToActivateEstimateDeltaUs() { return {}; }
-  void set_commit_to_ready_to_activate_estimate_delta_us(int64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_CommitToReadyToActivateEstimateDeltaUs::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_PrepareTilesEstimateDeltaUs =
-    ::protozero::proto_utils::FieldMetadata<
-      5,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt64,
-      int64_t,
-      CompositorTimingHistory>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_PrepareTilesEstimateDeltaUs kPrepareTilesEstimateDeltaUs() { return {}; }
-  void set_prepare_tiles_estimate_delta_us(int64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_PrepareTilesEstimateDeltaUs::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_ActivateEstimateDeltaUs =
-    ::protozero::proto_utils::FieldMetadata<
-      6,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt64,
-      int64_t,
-      CompositorTimingHistory>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_ActivateEstimateDeltaUs kActivateEstimateDeltaUs() { return {}; }
-  void set_activate_estimate_delta_us(int64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_ActivateEstimateDeltaUs::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_DrawEstimateDeltaUs =
-    ::protozero::proto_utils::FieldMetadata<
-      7,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt64,
-      int64_t,
-      CompositorTimingHistory>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_DrawEstimateDeltaUs kDrawEstimateDeltaUs() { return {}; }
-  void set_draw_estimate_delta_us(int64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_DrawEstimateDeltaUs::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt64>
-        ::Append(*this, field_id, value);
-  }
-};
-
-class BeginFrameSourceState_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/4, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  BeginFrameSourceState_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit BeginFrameSourceState_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit BeginFrameSourceState_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_source_id() const { return at<1>().valid(); }
-  uint32_t source_id() const { return at<1>().as_uint32(); }
-  bool has_paused() const { return at<2>().valid(); }
-  bool paused() const { return at<2>().as_bool(); }
-  bool has_num_observers() const { return at<3>().valid(); }
-  uint32_t num_observers() const { return at<3>().as_uint32(); }
-  bool has_last_begin_frame_args() const { return at<4>().valid(); }
-  ::protozero::ConstBytes last_begin_frame_args() const { return at<4>().as_bytes(); }
-};
-
-class BeginFrameSourceState : public ::protozero::Message {
- public:
-  using Decoder = BeginFrameSourceState_Decoder;
-  enum : int32_t {
-    kSourceIdFieldNumber = 1,
-    kPausedFieldNumber = 2,
-    kNumObserversFieldNumber = 3,
-    kLastBeginFrameArgsFieldNumber = 4,
-  };
-
-  using FieldMetadata_SourceId =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      BeginFrameSourceState>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_SourceId kSourceId() { return {}; }
-  void set_source_id(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_SourceId::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Paused =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kBool,
-      bool,
-      BeginFrameSourceState>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Paused kPaused() { return {}; }
-  void set_paused(bool value) {
-    static constexpr uint32_t field_id = FieldMetadata_Paused::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kBool>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_NumObservers =
-    ::protozero::proto_utils::FieldMetadata<
-      3,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      BeginFrameSourceState>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_NumObservers kNumObservers() { return {}; }
-  void set_num_observers(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_NumObservers::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_LastBeginFrameArgs =
-    ::protozero::proto_utils::FieldMetadata<
-      4,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      BeginFrameArgs,
-      BeginFrameSourceState>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_LastBeginFrameArgs kLastBeginFrameArgs() { return {}; }
-  template <typename T = BeginFrameArgs> T* set_last_begin_frame_args() {
-    return BeginNestedMessage<T>(4);
-  }
-
-};
-
-class BeginFrameObserverState_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/2, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  BeginFrameObserverState_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit BeginFrameObserverState_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit BeginFrameObserverState_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_dropped_begin_frame_args() const { return at<1>().valid(); }
-  int64_t dropped_begin_frame_args() const { return at<1>().as_int64(); }
-  bool has_last_begin_frame_args() const { return at<2>().valid(); }
-  ::protozero::ConstBytes last_begin_frame_args() const { return at<2>().as_bytes(); }
-};
-
-class BeginFrameObserverState : public ::protozero::Message {
- public:
-  using Decoder = BeginFrameObserverState_Decoder;
-  enum : int32_t {
-    kDroppedBeginFrameArgsFieldNumber = 1,
-    kLastBeginFrameArgsFieldNumber = 2,
-  };
-
-  using FieldMetadata_DroppedBeginFrameArgs =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt64,
-      int64_t,
-      BeginFrameObserverState>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_DroppedBeginFrameArgs kDroppedBeginFrameArgs() { return {}; }
-  void set_dropped_begin_frame_args(int64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_DroppedBeginFrameArgs::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_LastBeginFrameArgs =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      BeginFrameArgs,
-      BeginFrameObserverState>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_LastBeginFrameArgs kLastBeginFrameArgs() { return {}; }
-  template <typename T = BeginFrameArgs> T* set_last_begin_frame_args() {
-    return BeginNestedMessage<T>(2);
-  }
-
-};
-
-class BeginImplFrameArgs_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/6, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  BeginImplFrameArgs_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit BeginImplFrameArgs_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit BeginImplFrameArgs_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_updated_at_us() const { return at<1>().valid(); }
-  int64_t updated_at_us() const { return at<1>().as_int64(); }
-  bool has_finished_at_us() const { return at<2>().valid(); }
-  int64_t finished_at_us() const { return at<2>().as_int64(); }
-  bool has_state() const { return at<3>().valid(); }
-  int32_t state() const { return at<3>().as_int32(); }
-  bool has_current_args() const { return at<4>().valid(); }
-  ::protozero::ConstBytes current_args() const { return at<4>().as_bytes(); }
-  bool has_last_args() const { return at<5>().valid(); }
-  ::protozero::ConstBytes last_args() const { return at<5>().as_bytes(); }
-  bool has_timestamps_in_us() const { return at<6>().valid(); }
-  ::protozero::ConstBytes timestamps_in_us() const { return at<6>().as_bytes(); }
-};
-
-class BeginImplFrameArgs : public ::protozero::Message {
- public:
-  using Decoder = BeginImplFrameArgs_Decoder;
-  enum : int32_t {
-    kUpdatedAtUsFieldNumber = 1,
-    kFinishedAtUsFieldNumber = 2,
-    kStateFieldNumber = 3,
-    kCurrentArgsFieldNumber = 4,
-    kLastArgsFieldNumber = 5,
-    kTimestampsInUsFieldNumber = 6,
-  };
-  using TimestampsInUs = ::perfetto::protos::pbzero::BeginImplFrameArgs_TimestampsInUs;
-  using State = ::perfetto::protos::pbzero::BeginImplFrameArgs_State;
-  static const State BEGIN_FRAME_FINISHED = BeginImplFrameArgs_State_BEGIN_FRAME_FINISHED;
-  static const State BEGIN_FRAME_USING = BeginImplFrameArgs_State_BEGIN_FRAME_USING;
-
-  using FieldMetadata_UpdatedAtUs =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt64,
-      int64_t,
-      BeginImplFrameArgs>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_UpdatedAtUs kUpdatedAtUs() { return {}; }
-  void set_updated_at_us(int64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_UpdatedAtUs::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_FinishedAtUs =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt64,
-      int64_t,
-      BeginImplFrameArgs>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_FinishedAtUs kFinishedAtUs() { return {}; }
-  void set_finished_at_us(int64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_FinishedAtUs::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_State =
-    ::protozero::proto_utils::FieldMetadata<
-      3,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kEnum,
-      ::perfetto::protos::pbzero::BeginImplFrameArgs_State,
-      BeginImplFrameArgs>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_State kState() { return {}; }
-  void set_state(::perfetto::protos::pbzero::BeginImplFrameArgs_State value) {
-    static constexpr uint32_t field_id = FieldMetadata_State::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kEnum>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_CurrentArgs =
-    ::protozero::proto_utils::FieldMetadata<
-      4,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      BeginFrameArgs,
-      BeginImplFrameArgs>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_CurrentArgs kCurrentArgs() { return {}; }
-  template <typename T = BeginFrameArgs> T* set_current_args() {
-    return BeginNestedMessage<T>(4);
-  }
-
-
-  using FieldMetadata_LastArgs =
-    ::protozero::proto_utils::FieldMetadata<
-      5,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      BeginFrameArgs,
-      BeginImplFrameArgs>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_LastArgs kLastArgs() { return {}; }
-  template <typename T = BeginFrameArgs> T* set_last_args() {
-    return BeginNestedMessage<T>(5);
-  }
-
-
-  using FieldMetadata_TimestampsInUs =
-    ::protozero::proto_utils::FieldMetadata<
-      6,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      BeginImplFrameArgs_TimestampsInUs,
-      BeginImplFrameArgs>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_TimestampsInUs kTimestampsInUs() { return {}; }
-  template <typename T = BeginImplFrameArgs_TimestampsInUs> T* set_timestamps_in_us() {
-    return BeginNestedMessage<T>(6);
-  }
-
-};
-
-class BeginImplFrameArgs_TimestampsInUs_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/7, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  BeginImplFrameArgs_TimestampsInUs_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit BeginImplFrameArgs_TimestampsInUs_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit BeginImplFrameArgs_TimestampsInUs_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_interval_delta() const { return at<1>().valid(); }
-  int64_t interval_delta() const { return at<1>().as_int64(); }
-  bool has_now_to_deadline_delta() const { return at<2>().valid(); }
-  int64_t now_to_deadline_delta() const { return at<2>().as_int64(); }
-  bool has_frame_time_to_now_delta() const { return at<3>().valid(); }
-  int64_t frame_time_to_now_delta() const { return at<3>().as_int64(); }
-  bool has_frame_time_to_deadline_delta() const { return at<4>().valid(); }
-  int64_t frame_time_to_deadline_delta() const { return at<4>().as_int64(); }
-  bool has_now() const { return at<5>().valid(); }
-  int64_t now() const { return at<5>().as_int64(); }
-  bool has_frame_time() const { return at<6>().valid(); }
-  int64_t frame_time() const { return at<6>().as_int64(); }
-  bool has_deadline() const { return at<7>().valid(); }
-  int64_t deadline() const { return at<7>().as_int64(); }
-};
-
-class BeginImplFrameArgs_TimestampsInUs : public ::protozero::Message {
- public:
-  using Decoder = BeginImplFrameArgs_TimestampsInUs_Decoder;
-  enum : int32_t {
-    kIntervalDeltaFieldNumber = 1,
-    kNowToDeadlineDeltaFieldNumber = 2,
-    kFrameTimeToNowDeltaFieldNumber = 3,
-    kFrameTimeToDeadlineDeltaFieldNumber = 4,
-    kNowFieldNumber = 5,
-    kFrameTimeFieldNumber = 6,
-    kDeadlineFieldNumber = 7,
-  };
-
-  using FieldMetadata_IntervalDelta =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt64,
-      int64_t,
-      BeginImplFrameArgs_TimestampsInUs>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_IntervalDelta kIntervalDelta() { return {}; }
-  void set_interval_delta(int64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_IntervalDelta::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_NowToDeadlineDelta =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt64,
-      int64_t,
-      BeginImplFrameArgs_TimestampsInUs>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_NowToDeadlineDelta kNowToDeadlineDelta() { return {}; }
-  void set_now_to_deadline_delta(int64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_NowToDeadlineDelta::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_FrameTimeToNowDelta =
-    ::protozero::proto_utils::FieldMetadata<
-      3,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt64,
-      int64_t,
-      BeginImplFrameArgs_TimestampsInUs>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_FrameTimeToNowDelta kFrameTimeToNowDelta() { return {}; }
-  void set_frame_time_to_now_delta(int64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_FrameTimeToNowDelta::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_FrameTimeToDeadlineDelta =
-    ::protozero::proto_utils::FieldMetadata<
-      4,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt64,
-      int64_t,
-      BeginImplFrameArgs_TimestampsInUs>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_FrameTimeToDeadlineDelta kFrameTimeToDeadlineDelta() { return {}; }
-  void set_frame_time_to_deadline_delta(int64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_FrameTimeToDeadlineDelta::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Now =
-    ::protozero::proto_utils::FieldMetadata<
-      5,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt64,
-      int64_t,
-      BeginImplFrameArgs_TimestampsInUs>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Now kNow() { return {}; }
-  void set_now(int64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Now::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_FrameTime =
-    ::protozero::proto_utils::FieldMetadata<
-      6,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt64,
-      int64_t,
-      BeginImplFrameArgs_TimestampsInUs>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_FrameTime kFrameTime() { return {}; }
-  void set_frame_time(int64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_FrameTime::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Deadline =
-    ::protozero::proto_utils::FieldMetadata<
-      7,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt64,
-      int64_t,
-      BeginImplFrameArgs_TimestampsInUs>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Deadline kDeadline() { return {}; }
-  void set_deadline(int64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Deadline::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt64>
-        ::Append(*this, field_id, value);
-  }
-};
-
-class BeginFrameArgs_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/10, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  BeginFrameArgs_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit BeginFrameArgs_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit BeginFrameArgs_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_type() const { return at<1>().valid(); }
-  int32_t type() const { return at<1>().as_int32(); }
-  bool has_source_id() const { return at<2>().valid(); }
-  uint64_t source_id() const { return at<2>().as_uint64(); }
-  bool has_sequence_number() const { return at<3>().valid(); }
-  uint64_t sequence_number() const { return at<3>().as_uint64(); }
-  bool has_frame_time_us() const { return at<4>().valid(); }
-  int64_t frame_time_us() const { return at<4>().as_int64(); }
-  bool has_deadline_us() const { return at<5>().valid(); }
-  int64_t deadline_us() const { return at<5>().as_int64(); }
-  bool has_interval_delta_us() const { return at<6>().valid(); }
-  int64_t interval_delta_us() const { return at<6>().as_int64(); }
-  bool has_on_critical_path() const { return at<7>().valid(); }
-  bool on_critical_path() const { return at<7>().as_bool(); }
-  bool has_animate_only() const { return at<8>().valid(); }
-  bool animate_only() const { return at<8>().as_bool(); }
-  bool has_source_location_iid() const { return at<9>().valid(); }
-  uint64_t source_location_iid() const { return at<9>().as_uint64(); }
-  bool has_source_location() const { return at<10>().valid(); }
-  ::protozero::ConstBytes source_location() const { return at<10>().as_bytes(); }
-};
-
-class BeginFrameArgs : public ::protozero::Message {
- public:
-  using Decoder = BeginFrameArgs_Decoder;
-  enum : int32_t {
-    kTypeFieldNumber = 1,
-    kSourceIdFieldNumber = 2,
-    kSequenceNumberFieldNumber = 3,
-    kFrameTimeUsFieldNumber = 4,
-    kDeadlineUsFieldNumber = 5,
-    kIntervalDeltaUsFieldNumber = 6,
-    kOnCriticalPathFieldNumber = 7,
-    kAnimateOnlyFieldNumber = 8,
-    kSourceLocationIidFieldNumber = 9,
-    kSourceLocationFieldNumber = 10,
-  };
-  using BeginFrameArgsType = ::perfetto::protos::pbzero::BeginFrameArgs_BeginFrameArgsType;
-  static const BeginFrameArgsType BEGIN_FRAME_ARGS_TYPE_UNSPECIFIED = BeginFrameArgs_BeginFrameArgsType_BEGIN_FRAME_ARGS_TYPE_UNSPECIFIED;
-  static const BeginFrameArgsType BEGIN_FRAME_ARGS_TYPE_INVALID = BeginFrameArgs_BeginFrameArgsType_BEGIN_FRAME_ARGS_TYPE_INVALID;
-  static const BeginFrameArgsType BEGIN_FRAME_ARGS_TYPE_NORMAL = BeginFrameArgs_BeginFrameArgsType_BEGIN_FRAME_ARGS_TYPE_NORMAL;
-  static const BeginFrameArgsType BEGIN_FRAME_ARGS_TYPE_MISSED = BeginFrameArgs_BeginFrameArgsType_BEGIN_FRAME_ARGS_TYPE_MISSED;
-
-  using FieldMetadata_Type =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kEnum,
-      ::perfetto::protos::pbzero::BeginFrameArgs_BeginFrameArgsType,
-      BeginFrameArgs>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Type kType() { return {}; }
-  void set_type(::perfetto::protos::pbzero::BeginFrameArgs_BeginFrameArgsType value) {
-    static constexpr uint32_t field_id = FieldMetadata_Type::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kEnum>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_SourceId =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      BeginFrameArgs>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_SourceId kSourceId() { return {}; }
-  void set_source_id(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_SourceId::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_SequenceNumber =
-    ::protozero::proto_utils::FieldMetadata<
-      3,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      BeginFrameArgs>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_SequenceNumber kSequenceNumber() { return {}; }
-  void set_sequence_number(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_SequenceNumber::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_FrameTimeUs =
-    ::protozero::proto_utils::FieldMetadata<
-      4,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt64,
-      int64_t,
-      BeginFrameArgs>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_FrameTimeUs kFrameTimeUs() { return {}; }
-  void set_frame_time_us(int64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_FrameTimeUs::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_DeadlineUs =
-    ::protozero::proto_utils::FieldMetadata<
-      5,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt64,
-      int64_t,
-      BeginFrameArgs>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_DeadlineUs kDeadlineUs() { return {}; }
-  void set_deadline_us(int64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_DeadlineUs::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_IntervalDeltaUs =
-    ::protozero::proto_utils::FieldMetadata<
-      6,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt64,
-      int64_t,
-      BeginFrameArgs>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_IntervalDeltaUs kIntervalDeltaUs() { return {}; }
-  void set_interval_delta_us(int64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_IntervalDeltaUs::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_OnCriticalPath =
-    ::protozero::proto_utils::FieldMetadata<
-      7,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kBool,
-      bool,
-      BeginFrameArgs>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_OnCriticalPath kOnCriticalPath() { return {}; }
-  void set_on_critical_path(bool value) {
-    static constexpr uint32_t field_id = FieldMetadata_OnCriticalPath::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kBool>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_AnimateOnly =
-    ::protozero::proto_utils::FieldMetadata<
-      8,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kBool,
-      bool,
-      BeginFrameArgs>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_AnimateOnly kAnimateOnly() { return {}; }
-  void set_animate_only(bool value) {
-    static constexpr uint32_t field_id = FieldMetadata_AnimateOnly::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kBool>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_SourceLocationIid =
-    ::protozero::proto_utils::FieldMetadata<
-      9,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      BeginFrameArgs>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_SourceLocationIid kSourceLocationIid() { return {}; }
-  void set_source_location_iid(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_SourceLocationIid::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_SourceLocation =
-    ::protozero::proto_utils::FieldMetadata<
-      10,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      SourceLocation,
-      BeginFrameArgs>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_SourceLocation kSourceLocation() { return {}; }
-  template <typename T = SourceLocation> T* set_source_location() {
-    return BeginNestedMessage<T>(10);
-  }
-
-};
-
-class ChromeCompositorStateMachine_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/2, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  ChromeCompositorStateMachine_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit ChromeCompositorStateMachine_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit ChromeCompositorStateMachine_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_major_state() const { return at<1>().valid(); }
-  ::protozero::ConstBytes major_state() const { return at<1>().as_bytes(); }
-  bool has_minor_state() const { return at<2>().valid(); }
-  ::protozero::ConstBytes minor_state() const { return at<2>().as_bytes(); }
-};
-
-class ChromeCompositorStateMachine : public ::protozero::Message {
- public:
-  using Decoder = ChromeCompositorStateMachine_Decoder;
-  enum : int32_t {
-    kMajorStateFieldNumber = 1,
-    kMinorStateFieldNumber = 2,
-  };
-  using MajorState = ::perfetto::protos::pbzero::ChromeCompositorStateMachine_MajorState;
-  using MinorState = ::perfetto::protos::pbzero::ChromeCompositorStateMachine_MinorState;
-
-  using FieldMetadata_MajorState =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      ChromeCompositorStateMachine_MajorState,
-      ChromeCompositorStateMachine>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_MajorState kMajorState() { return {}; }
-  template <typename T = ChromeCompositorStateMachine_MajorState> T* set_major_state() {
-    return BeginNestedMessage<T>(1);
-  }
-
-
-  using FieldMetadata_MinorState =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      ChromeCompositorStateMachine_MinorState,
-      ChromeCompositorStateMachine>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_MinorState kMinorState() { return {}; }
-  template <typename T = ChromeCompositorStateMachine_MinorState> T* set_minor_state() {
-    return BeginNestedMessage<T>(2);
-  }
-
-};
-
-class ChromeCompositorStateMachine_MinorState_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/46, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  ChromeCompositorStateMachine_MinorState_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit ChromeCompositorStateMachine_MinorState_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit ChromeCompositorStateMachine_MinorState_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_commit_count() const { return at<1>().valid(); }
-  int32_t commit_count() const { return at<1>().as_int32(); }
-  bool has_current_frame_number() const { return at<2>().valid(); }
-  int32_t current_frame_number() const { return at<2>().as_int32(); }
-  bool has_last_frame_number_submit_performed() const { return at<3>().valid(); }
-  int32_t last_frame_number_submit_performed() const { return at<3>().as_int32(); }
-  bool has_last_frame_number_draw_performed() const { return at<4>().valid(); }
-  int32_t last_frame_number_draw_performed() const { return at<4>().as_int32(); }
-  bool has_last_frame_number_begin_main_frame_sent() const { return at<5>().valid(); }
-  int32_t last_frame_number_begin_main_frame_sent() const { return at<5>().as_int32(); }
-  bool has_did_draw() const { return at<6>().valid(); }
-  bool did_draw() const { return at<6>().as_bool(); }
-  bool has_did_send_begin_main_frame_for_current_frame() const { return at<7>().valid(); }
-  bool did_send_begin_main_frame_for_current_frame() const { return at<7>().as_bool(); }
-  bool has_did_notify_begin_main_frame_not_expected_until() const { return at<8>().valid(); }
-  bool did_notify_begin_main_frame_not_expected_until() const { return at<8>().as_bool(); }
-  bool has_did_notify_begin_main_frame_not_expected_soon() const { return at<9>().valid(); }
-  bool did_notify_begin_main_frame_not_expected_soon() const { return at<9>().as_bool(); }
-  bool has_wants_begin_main_frame_not_expected() const { return at<10>().valid(); }
-  bool wants_begin_main_frame_not_expected() const { return at<10>().as_bool(); }
-  bool has_did_commit_during_frame() const { return at<11>().valid(); }
-  bool did_commit_during_frame() const { return at<11>().as_bool(); }
-  bool has_did_invalidate_layer_tree_frame_sink() const { return at<12>().valid(); }
-  bool did_invalidate_layer_tree_frame_sink() const { return at<12>().as_bool(); }
-  bool has_did_perform_impl_side_invalidaion() const { return at<13>().valid(); }
-  bool did_perform_impl_side_invalidaion() const { return at<13>().as_bool(); }
-  bool has_did_prepare_tiles() const { return at<14>().valid(); }
-  bool did_prepare_tiles() const { return at<14>().as_bool(); }
-  bool has_consecutive_checkerboard_animations() const { return at<15>().valid(); }
-  int32_t consecutive_checkerboard_animations() const { return at<15>().as_int32(); }
-  bool has_pending_submit_frames() const { return at<16>().valid(); }
-  int32_t pending_submit_frames() const { return at<16>().as_int32(); }
-  bool has_submit_frames_with_current_layer_tree_frame_sink() const { return at<17>().valid(); }
-  int32_t submit_frames_with_current_layer_tree_frame_sink() const { return at<17>().as_int32(); }
-  bool has_needs_redraw() const { return at<18>().valid(); }
-  bool needs_redraw() const { return at<18>().as_bool(); }
-  bool has_needs_prepare_tiles() const { return at<19>().valid(); }
-  bool needs_prepare_tiles() const { return at<19>().as_bool(); }
-  bool has_needs_begin_main_frame() const { return at<20>().valid(); }
-  bool needs_begin_main_frame() const { return at<20>().as_bool(); }
-  bool has_needs_one_begin_impl_frame() const { return at<21>().valid(); }
-  bool needs_one_begin_impl_frame() const { return at<21>().as_bool(); }
-  bool has_visible() const { return at<22>().valid(); }
-  bool visible() const { return at<22>().as_bool(); }
-  bool has_begin_frame_source_paused() const { return at<23>().valid(); }
-  bool begin_frame_source_paused() const { return at<23>().as_bool(); }
-  bool has_can_draw() const { return at<24>().valid(); }
-  bool can_draw() const { return at<24>().as_bool(); }
-  bool has_resourceless_draw() const { return at<25>().valid(); }
-  bool resourceless_draw() const { return at<25>().as_bool(); }
-  bool has_has_pending_tree() const { return at<26>().valid(); }
-  bool has_pending_tree() const { return at<26>().as_bool(); }
-  bool has_pending_tree_is_ready_for_activation() const { return at<27>().valid(); }
-  bool pending_tree_is_ready_for_activation() const { return at<27>().as_bool(); }
-  bool has_active_tree_needs_first_draw() const { return at<28>().valid(); }
-  bool active_tree_needs_first_draw() const { return at<28>().as_bool(); }
-  bool has_active_tree_is_ready_to_draw() const { return at<29>().valid(); }
-  bool active_tree_is_ready_to_draw() const { return at<29>().as_bool(); }
-  bool has_did_create_and_initialize_first_layer_tree_frame_sink() const { return at<30>().valid(); }
-  bool did_create_and_initialize_first_layer_tree_frame_sink() const { return at<30>().as_bool(); }
-  bool has_tree_priority() const { return at<31>().valid(); }
-  int32_t tree_priority() const { return at<31>().as_int32(); }
-  bool has_scroll_handler_state() const { return at<32>().valid(); }
-  int32_t scroll_handler_state() const { return at<32>().as_int32(); }
-  bool has_critical_begin_main_frame_to_activate_is_fast() const { return at<33>().valid(); }
-  bool critical_begin_main_frame_to_activate_is_fast() const { return at<33>().as_bool(); }
-  bool has_main_thread_missed_last_deadline() const { return at<34>().valid(); }
-  bool main_thread_missed_last_deadline() const { return at<34>().as_bool(); }
-  bool has_skip_next_begin_main_frame_to_reduce_latency() const { return at<35>().valid(); }
-  bool skip_next_begin_main_frame_to_reduce_latency() const { return at<35>().as_bool(); }
-  bool has_video_needs_begin_frames() const { return at<36>().valid(); }
-  bool video_needs_begin_frames() const { return at<36>().as_bool(); }
-  bool has_defer_begin_main_frame() const { return at<37>().valid(); }
-  bool defer_begin_main_frame() const { return at<37>().as_bool(); }
-  bool has_last_commit_had_no_updates() const { return at<38>().valid(); }
-  bool last_commit_had_no_updates() const { return at<38>().as_bool(); }
-  bool has_did_draw_in_last_frame() const { return at<39>().valid(); }
-  bool did_draw_in_last_frame() const { return at<39>().as_bool(); }
-  bool has_did_submit_in_last_frame() const { return at<40>().valid(); }
-  bool did_submit_in_last_frame() const { return at<40>().as_bool(); }
-  bool has_needs_impl_side_invalidation() const { return at<41>().valid(); }
-  bool needs_impl_side_invalidation() const { return at<41>().as_bool(); }
-  bool has_current_pending_tree_is_impl_side() const { return at<42>().valid(); }
-  bool current_pending_tree_is_impl_side() const { return at<42>().as_bool(); }
-  bool has_previous_pending_tree_was_impl_side() const { return at<43>().valid(); }
-  bool previous_pending_tree_was_impl_side() const { return at<43>().as_bool(); }
-  bool has_processing_animation_worklets_for_active_tree() const { return at<44>().valid(); }
-  bool processing_animation_worklets_for_active_tree() const { return at<44>().as_bool(); }
-  bool has_processing_animation_worklets_for_pending_tree() const { return at<45>().valid(); }
-  bool processing_animation_worklets_for_pending_tree() const { return at<45>().as_bool(); }
-  bool has_processing_paint_worklets_for_pending_tree() const { return at<46>().valid(); }
-  bool processing_paint_worklets_for_pending_tree() const { return at<46>().as_bool(); }
-};
-
-class ChromeCompositorStateMachine_MinorState : public ::protozero::Message {
- public:
-  using Decoder = ChromeCompositorStateMachine_MinorState_Decoder;
-  enum : int32_t {
-    kCommitCountFieldNumber = 1,
-    kCurrentFrameNumberFieldNumber = 2,
-    kLastFrameNumberSubmitPerformedFieldNumber = 3,
-    kLastFrameNumberDrawPerformedFieldNumber = 4,
-    kLastFrameNumberBeginMainFrameSentFieldNumber = 5,
-    kDidDrawFieldNumber = 6,
-    kDidSendBeginMainFrameForCurrentFrameFieldNumber = 7,
-    kDidNotifyBeginMainFrameNotExpectedUntilFieldNumber = 8,
-    kDidNotifyBeginMainFrameNotExpectedSoonFieldNumber = 9,
-    kWantsBeginMainFrameNotExpectedFieldNumber = 10,
-    kDidCommitDuringFrameFieldNumber = 11,
-    kDidInvalidateLayerTreeFrameSinkFieldNumber = 12,
-    kDidPerformImplSideInvalidaionFieldNumber = 13,
-    kDidPrepareTilesFieldNumber = 14,
-    kConsecutiveCheckerboardAnimationsFieldNumber = 15,
-    kPendingSubmitFramesFieldNumber = 16,
-    kSubmitFramesWithCurrentLayerTreeFrameSinkFieldNumber = 17,
-    kNeedsRedrawFieldNumber = 18,
-    kNeedsPrepareTilesFieldNumber = 19,
-    kNeedsBeginMainFrameFieldNumber = 20,
-    kNeedsOneBeginImplFrameFieldNumber = 21,
-    kVisibleFieldNumber = 22,
-    kBeginFrameSourcePausedFieldNumber = 23,
-    kCanDrawFieldNumber = 24,
-    kResourcelessDrawFieldNumber = 25,
-    kHasPendingTreeFieldNumber = 26,
-    kPendingTreeIsReadyForActivationFieldNumber = 27,
-    kActiveTreeNeedsFirstDrawFieldNumber = 28,
-    kActiveTreeIsReadyToDrawFieldNumber = 29,
-    kDidCreateAndInitializeFirstLayerTreeFrameSinkFieldNumber = 30,
-    kTreePriorityFieldNumber = 31,
-    kScrollHandlerStateFieldNumber = 32,
-    kCriticalBeginMainFrameToActivateIsFastFieldNumber = 33,
-    kMainThreadMissedLastDeadlineFieldNumber = 34,
-    kSkipNextBeginMainFrameToReduceLatencyFieldNumber = 35,
-    kVideoNeedsBeginFramesFieldNumber = 36,
-    kDeferBeginMainFrameFieldNumber = 37,
-    kLastCommitHadNoUpdatesFieldNumber = 38,
-    kDidDrawInLastFrameFieldNumber = 39,
-    kDidSubmitInLastFrameFieldNumber = 40,
-    kNeedsImplSideInvalidationFieldNumber = 41,
-    kCurrentPendingTreeIsImplSideFieldNumber = 42,
-    kPreviousPendingTreeWasImplSideFieldNumber = 43,
-    kProcessingAnimationWorkletsForActiveTreeFieldNumber = 44,
-    kProcessingAnimationWorkletsForPendingTreeFieldNumber = 45,
-    kProcessingPaintWorkletsForPendingTreeFieldNumber = 46,
-  };
-  using TreePriority = ::perfetto::protos::pbzero::ChromeCompositorStateMachine_MinorState_TreePriority;
-  using ScrollHandlerState = ::perfetto::protos::pbzero::ChromeCompositorStateMachine_MinorState_ScrollHandlerState;
-  static const TreePriority TREE_PRIORITY_UNSPECIFIED = ChromeCompositorStateMachine_MinorState_TreePriority_TREE_PRIORITY_UNSPECIFIED;
-  static const TreePriority TREE_PRIORITY_SAME_PRIORITY_FOR_BOTH_TREES = ChromeCompositorStateMachine_MinorState_TreePriority_TREE_PRIORITY_SAME_PRIORITY_FOR_BOTH_TREES;
-  static const TreePriority TREE_PRIORITY_SMOOTHNESS_TAKES_PRIORITY = ChromeCompositorStateMachine_MinorState_TreePriority_TREE_PRIORITY_SMOOTHNESS_TAKES_PRIORITY;
-  static const TreePriority TREE_PRIORITY_NEW_CONTENT_TAKES_PRIORITY = ChromeCompositorStateMachine_MinorState_TreePriority_TREE_PRIORITY_NEW_CONTENT_TAKES_PRIORITY;
-  static const ScrollHandlerState SCROLL_HANDLER_UNSPECIFIED = ChromeCompositorStateMachine_MinorState_ScrollHandlerState_SCROLL_HANDLER_UNSPECIFIED;
-  static const ScrollHandlerState SCROLL_AFFECTS_SCROLL_HANDLER = ChromeCompositorStateMachine_MinorState_ScrollHandlerState_SCROLL_AFFECTS_SCROLL_HANDLER;
-  static const ScrollHandlerState SCROLL_DOES_NOT_AFFECT_SCROLL_HANDLER = ChromeCompositorStateMachine_MinorState_ScrollHandlerState_SCROLL_DOES_NOT_AFFECT_SCROLL_HANDLER;
-
-  using FieldMetadata_CommitCount =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt32,
-      int32_t,
-      ChromeCompositorStateMachine_MinorState>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_CommitCount kCommitCount() { return {}; }
-  void set_commit_count(int32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_CommitCount::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_CurrentFrameNumber =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt32,
-      int32_t,
-      ChromeCompositorStateMachine_MinorState>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_CurrentFrameNumber kCurrentFrameNumber() { return {}; }
-  void set_current_frame_number(int32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_CurrentFrameNumber::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_LastFrameNumberSubmitPerformed =
-    ::protozero::proto_utils::FieldMetadata<
-      3,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt32,
-      int32_t,
-      ChromeCompositorStateMachine_MinorState>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_LastFrameNumberSubmitPerformed kLastFrameNumberSubmitPerformed() { return {}; }
-  void set_last_frame_number_submit_performed(int32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_LastFrameNumberSubmitPerformed::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_LastFrameNumberDrawPerformed =
-    ::protozero::proto_utils::FieldMetadata<
-      4,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt32,
-      int32_t,
-      ChromeCompositorStateMachine_MinorState>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_LastFrameNumberDrawPerformed kLastFrameNumberDrawPerformed() { return {}; }
-  void set_last_frame_number_draw_performed(int32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_LastFrameNumberDrawPerformed::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_LastFrameNumberBeginMainFrameSent =
-    ::protozero::proto_utils::FieldMetadata<
-      5,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt32,
-      int32_t,
-      ChromeCompositorStateMachine_MinorState>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_LastFrameNumberBeginMainFrameSent kLastFrameNumberBeginMainFrameSent() { return {}; }
-  void set_last_frame_number_begin_main_frame_sent(int32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_LastFrameNumberBeginMainFrameSent::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_DidDraw =
-    ::protozero::proto_utils::FieldMetadata<
-      6,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kBool,
-      bool,
-      ChromeCompositorStateMachine_MinorState>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_DidDraw kDidDraw() { return {}; }
-  void set_did_draw(bool value) {
-    static constexpr uint32_t field_id = FieldMetadata_DidDraw::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kBool>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_DidSendBeginMainFrameForCurrentFrame =
-    ::protozero::proto_utils::FieldMetadata<
-      7,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kBool,
-      bool,
-      ChromeCompositorStateMachine_MinorState>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_DidSendBeginMainFrameForCurrentFrame kDidSendBeginMainFrameForCurrentFrame() { return {}; }
-  void set_did_send_begin_main_frame_for_current_frame(bool value) {
-    static constexpr uint32_t field_id = FieldMetadata_DidSendBeginMainFrameForCurrentFrame::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kBool>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_DidNotifyBeginMainFrameNotExpectedUntil =
-    ::protozero::proto_utils::FieldMetadata<
-      8,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kBool,
-      bool,
-      ChromeCompositorStateMachine_MinorState>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_DidNotifyBeginMainFrameNotExpectedUntil kDidNotifyBeginMainFrameNotExpectedUntil() { return {}; }
-  void set_did_notify_begin_main_frame_not_expected_until(bool value) {
-    static constexpr uint32_t field_id = FieldMetadata_DidNotifyBeginMainFrameNotExpectedUntil::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kBool>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_DidNotifyBeginMainFrameNotExpectedSoon =
-    ::protozero::proto_utils::FieldMetadata<
-      9,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kBool,
-      bool,
-      ChromeCompositorStateMachine_MinorState>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_DidNotifyBeginMainFrameNotExpectedSoon kDidNotifyBeginMainFrameNotExpectedSoon() { return {}; }
-  void set_did_notify_begin_main_frame_not_expected_soon(bool value) {
-    static constexpr uint32_t field_id = FieldMetadata_DidNotifyBeginMainFrameNotExpectedSoon::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kBool>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_WantsBeginMainFrameNotExpected =
-    ::protozero::proto_utils::FieldMetadata<
-      10,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kBool,
-      bool,
-      ChromeCompositorStateMachine_MinorState>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_WantsBeginMainFrameNotExpected kWantsBeginMainFrameNotExpected() { return {}; }
-  void set_wants_begin_main_frame_not_expected(bool value) {
-    static constexpr uint32_t field_id = FieldMetadata_WantsBeginMainFrameNotExpected::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kBool>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_DidCommitDuringFrame =
-    ::protozero::proto_utils::FieldMetadata<
-      11,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kBool,
-      bool,
-      ChromeCompositorStateMachine_MinorState>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_DidCommitDuringFrame kDidCommitDuringFrame() { return {}; }
-  void set_did_commit_during_frame(bool value) {
-    static constexpr uint32_t field_id = FieldMetadata_DidCommitDuringFrame::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kBool>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_DidInvalidateLayerTreeFrameSink =
-    ::protozero::proto_utils::FieldMetadata<
-      12,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kBool,
-      bool,
-      ChromeCompositorStateMachine_MinorState>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_DidInvalidateLayerTreeFrameSink kDidInvalidateLayerTreeFrameSink() { return {}; }
-  void set_did_invalidate_layer_tree_frame_sink(bool value) {
-    static constexpr uint32_t field_id = FieldMetadata_DidInvalidateLayerTreeFrameSink::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kBool>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_DidPerformImplSideInvalidaion =
-    ::protozero::proto_utils::FieldMetadata<
-      13,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kBool,
-      bool,
-      ChromeCompositorStateMachine_MinorState>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_DidPerformImplSideInvalidaion kDidPerformImplSideInvalidaion() { return {}; }
-  void set_did_perform_impl_side_invalidaion(bool value) {
-    static constexpr uint32_t field_id = FieldMetadata_DidPerformImplSideInvalidaion::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kBool>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_DidPrepareTiles =
-    ::protozero::proto_utils::FieldMetadata<
-      14,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kBool,
-      bool,
-      ChromeCompositorStateMachine_MinorState>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_DidPrepareTiles kDidPrepareTiles() { return {}; }
-  void set_did_prepare_tiles(bool value) {
-    static constexpr uint32_t field_id = FieldMetadata_DidPrepareTiles::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kBool>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_ConsecutiveCheckerboardAnimations =
-    ::protozero::proto_utils::FieldMetadata<
-      15,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt32,
-      int32_t,
-      ChromeCompositorStateMachine_MinorState>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_ConsecutiveCheckerboardAnimations kConsecutiveCheckerboardAnimations() { return {}; }
-  void set_consecutive_checkerboard_animations(int32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_ConsecutiveCheckerboardAnimations::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_PendingSubmitFrames =
-    ::protozero::proto_utils::FieldMetadata<
-      16,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt32,
-      int32_t,
-      ChromeCompositorStateMachine_MinorState>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_PendingSubmitFrames kPendingSubmitFrames() { return {}; }
-  void set_pending_submit_frames(int32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_PendingSubmitFrames::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_SubmitFramesWithCurrentLayerTreeFrameSink =
-    ::protozero::proto_utils::FieldMetadata<
-      17,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt32,
-      int32_t,
-      ChromeCompositorStateMachine_MinorState>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_SubmitFramesWithCurrentLayerTreeFrameSink kSubmitFramesWithCurrentLayerTreeFrameSink() { return {}; }
-  void set_submit_frames_with_current_layer_tree_frame_sink(int32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_SubmitFramesWithCurrentLayerTreeFrameSink::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_NeedsRedraw =
-    ::protozero::proto_utils::FieldMetadata<
-      18,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kBool,
-      bool,
-      ChromeCompositorStateMachine_MinorState>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_NeedsRedraw kNeedsRedraw() { return {}; }
-  void set_needs_redraw(bool value) {
-    static constexpr uint32_t field_id = FieldMetadata_NeedsRedraw::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kBool>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_NeedsPrepareTiles =
-    ::protozero::proto_utils::FieldMetadata<
-      19,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kBool,
-      bool,
-      ChromeCompositorStateMachine_MinorState>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_NeedsPrepareTiles kNeedsPrepareTiles() { return {}; }
-  void set_needs_prepare_tiles(bool value) {
-    static constexpr uint32_t field_id = FieldMetadata_NeedsPrepareTiles::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kBool>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_NeedsBeginMainFrame =
-    ::protozero::proto_utils::FieldMetadata<
-      20,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kBool,
-      bool,
-      ChromeCompositorStateMachine_MinorState>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_NeedsBeginMainFrame kNeedsBeginMainFrame() { return {}; }
-  void set_needs_begin_main_frame(bool value) {
-    static constexpr uint32_t field_id = FieldMetadata_NeedsBeginMainFrame::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kBool>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_NeedsOneBeginImplFrame =
-    ::protozero::proto_utils::FieldMetadata<
-      21,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kBool,
-      bool,
-      ChromeCompositorStateMachine_MinorState>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_NeedsOneBeginImplFrame kNeedsOneBeginImplFrame() { return {}; }
-  void set_needs_one_begin_impl_frame(bool value) {
-    static constexpr uint32_t field_id = FieldMetadata_NeedsOneBeginImplFrame::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kBool>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Visible =
-    ::protozero::proto_utils::FieldMetadata<
-      22,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kBool,
-      bool,
-      ChromeCompositorStateMachine_MinorState>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Visible kVisible() { return {}; }
-  void set_visible(bool value) {
-    static constexpr uint32_t field_id = FieldMetadata_Visible::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kBool>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_BeginFrameSourcePaused =
-    ::protozero::proto_utils::FieldMetadata<
-      23,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kBool,
-      bool,
-      ChromeCompositorStateMachine_MinorState>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_BeginFrameSourcePaused kBeginFrameSourcePaused() { return {}; }
-  void set_begin_frame_source_paused(bool value) {
-    static constexpr uint32_t field_id = FieldMetadata_BeginFrameSourcePaused::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kBool>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_CanDraw =
-    ::protozero::proto_utils::FieldMetadata<
-      24,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kBool,
-      bool,
-      ChromeCompositorStateMachine_MinorState>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_CanDraw kCanDraw() { return {}; }
-  void set_can_draw(bool value) {
-    static constexpr uint32_t field_id = FieldMetadata_CanDraw::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kBool>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_ResourcelessDraw =
-    ::protozero::proto_utils::FieldMetadata<
-      25,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kBool,
-      bool,
-      ChromeCompositorStateMachine_MinorState>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_ResourcelessDraw kResourcelessDraw() { return {}; }
-  void set_resourceless_draw(bool value) {
-    static constexpr uint32_t field_id = FieldMetadata_ResourcelessDraw::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kBool>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_HasPendingTree =
-    ::protozero::proto_utils::FieldMetadata<
-      26,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kBool,
-      bool,
-      ChromeCompositorStateMachine_MinorState>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_HasPendingTree kHasPendingTree() { return {}; }
-  void set_has_pending_tree(bool value) {
-    static constexpr uint32_t field_id = FieldMetadata_HasPendingTree::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kBool>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_PendingTreeIsReadyForActivation =
-    ::protozero::proto_utils::FieldMetadata<
-      27,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kBool,
-      bool,
-      ChromeCompositorStateMachine_MinorState>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_PendingTreeIsReadyForActivation kPendingTreeIsReadyForActivation() { return {}; }
-  void set_pending_tree_is_ready_for_activation(bool value) {
-    static constexpr uint32_t field_id = FieldMetadata_PendingTreeIsReadyForActivation::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kBool>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_ActiveTreeNeedsFirstDraw =
-    ::protozero::proto_utils::FieldMetadata<
-      28,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kBool,
-      bool,
-      ChromeCompositorStateMachine_MinorState>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_ActiveTreeNeedsFirstDraw kActiveTreeNeedsFirstDraw() { return {}; }
-  void set_active_tree_needs_first_draw(bool value) {
-    static constexpr uint32_t field_id = FieldMetadata_ActiveTreeNeedsFirstDraw::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kBool>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_ActiveTreeIsReadyToDraw =
-    ::protozero::proto_utils::FieldMetadata<
-      29,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kBool,
-      bool,
-      ChromeCompositorStateMachine_MinorState>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_ActiveTreeIsReadyToDraw kActiveTreeIsReadyToDraw() { return {}; }
-  void set_active_tree_is_ready_to_draw(bool value) {
-    static constexpr uint32_t field_id = FieldMetadata_ActiveTreeIsReadyToDraw::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kBool>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_DidCreateAndInitializeFirstLayerTreeFrameSink =
-    ::protozero::proto_utils::FieldMetadata<
-      30,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kBool,
-      bool,
-      ChromeCompositorStateMachine_MinorState>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_DidCreateAndInitializeFirstLayerTreeFrameSink kDidCreateAndInitializeFirstLayerTreeFrameSink() { return {}; }
-  void set_did_create_and_initialize_first_layer_tree_frame_sink(bool value) {
-    static constexpr uint32_t field_id = FieldMetadata_DidCreateAndInitializeFirstLayerTreeFrameSink::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kBool>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_TreePriority =
-    ::protozero::proto_utils::FieldMetadata<
-      31,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kEnum,
-      ::perfetto::protos::pbzero::ChromeCompositorStateMachine_MinorState_TreePriority,
-      ChromeCompositorStateMachine_MinorState>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_TreePriority kTreePriority() { return {}; }
-  void set_tree_priority(::perfetto::protos::pbzero::ChromeCompositorStateMachine_MinorState_TreePriority value) {
-    static constexpr uint32_t field_id = FieldMetadata_TreePriority::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kEnum>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_ScrollHandlerState =
-    ::protozero::proto_utils::FieldMetadata<
-      32,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kEnum,
-      ::perfetto::protos::pbzero::ChromeCompositorStateMachine_MinorState_ScrollHandlerState,
-      ChromeCompositorStateMachine_MinorState>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_ScrollHandlerState kScrollHandlerState() { return {}; }
-  void set_scroll_handler_state(::perfetto::protos::pbzero::ChromeCompositorStateMachine_MinorState_ScrollHandlerState value) {
-    static constexpr uint32_t field_id = FieldMetadata_ScrollHandlerState::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kEnum>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_CriticalBeginMainFrameToActivateIsFast =
-    ::protozero::proto_utils::FieldMetadata<
-      33,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kBool,
-      bool,
-      ChromeCompositorStateMachine_MinorState>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_CriticalBeginMainFrameToActivateIsFast kCriticalBeginMainFrameToActivateIsFast() { return {}; }
-  void set_critical_begin_main_frame_to_activate_is_fast(bool value) {
-    static constexpr uint32_t field_id = FieldMetadata_CriticalBeginMainFrameToActivateIsFast::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kBool>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_MainThreadMissedLastDeadline =
-    ::protozero::proto_utils::FieldMetadata<
-      34,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kBool,
-      bool,
-      ChromeCompositorStateMachine_MinorState>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_MainThreadMissedLastDeadline kMainThreadMissedLastDeadline() { return {}; }
-  void set_main_thread_missed_last_deadline(bool value) {
-    static constexpr uint32_t field_id = FieldMetadata_MainThreadMissedLastDeadline::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kBool>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_SkipNextBeginMainFrameToReduceLatency =
-    ::protozero::proto_utils::FieldMetadata<
-      35,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kBool,
-      bool,
-      ChromeCompositorStateMachine_MinorState>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_SkipNextBeginMainFrameToReduceLatency kSkipNextBeginMainFrameToReduceLatency() { return {}; }
-  void set_skip_next_begin_main_frame_to_reduce_latency(bool value) {
-    static constexpr uint32_t field_id = FieldMetadata_SkipNextBeginMainFrameToReduceLatency::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kBool>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_VideoNeedsBeginFrames =
-    ::protozero::proto_utils::FieldMetadata<
-      36,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kBool,
-      bool,
-      ChromeCompositorStateMachine_MinorState>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_VideoNeedsBeginFrames kVideoNeedsBeginFrames() { return {}; }
-  void set_video_needs_begin_frames(bool value) {
-    static constexpr uint32_t field_id = FieldMetadata_VideoNeedsBeginFrames::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kBool>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_DeferBeginMainFrame =
-    ::protozero::proto_utils::FieldMetadata<
-      37,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kBool,
-      bool,
-      ChromeCompositorStateMachine_MinorState>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_DeferBeginMainFrame kDeferBeginMainFrame() { return {}; }
-  void set_defer_begin_main_frame(bool value) {
-    static constexpr uint32_t field_id = FieldMetadata_DeferBeginMainFrame::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kBool>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_LastCommitHadNoUpdates =
-    ::protozero::proto_utils::FieldMetadata<
-      38,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kBool,
-      bool,
-      ChromeCompositorStateMachine_MinorState>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_LastCommitHadNoUpdates kLastCommitHadNoUpdates() { return {}; }
-  void set_last_commit_had_no_updates(bool value) {
-    static constexpr uint32_t field_id = FieldMetadata_LastCommitHadNoUpdates::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kBool>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_DidDrawInLastFrame =
-    ::protozero::proto_utils::FieldMetadata<
-      39,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kBool,
-      bool,
-      ChromeCompositorStateMachine_MinorState>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_DidDrawInLastFrame kDidDrawInLastFrame() { return {}; }
-  void set_did_draw_in_last_frame(bool value) {
-    static constexpr uint32_t field_id = FieldMetadata_DidDrawInLastFrame::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kBool>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_DidSubmitInLastFrame =
-    ::protozero::proto_utils::FieldMetadata<
-      40,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kBool,
-      bool,
-      ChromeCompositorStateMachine_MinorState>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_DidSubmitInLastFrame kDidSubmitInLastFrame() { return {}; }
-  void set_did_submit_in_last_frame(bool value) {
-    static constexpr uint32_t field_id = FieldMetadata_DidSubmitInLastFrame::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kBool>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_NeedsImplSideInvalidation =
-    ::protozero::proto_utils::FieldMetadata<
-      41,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kBool,
-      bool,
-      ChromeCompositorStateMachine_MinorState>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_NeedsImplSideInvalidation kNeedsImplSideInvalidation() { return {}; }
-  void set_needs_impl_side_invalidation(bool value) {
-    static constexpr uint32_t field_id = FieldMetadata_NeedsImplSideInvalidation::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kBool>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_CurrentPendingTreeIsImplSide =
-    ::protozero::proto_utils::FieldMetadata<
-      42,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kBool,
-      bool,
-      ChromeCompositorStateMachine_MinorState>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_CurrentPendingTreeIsImplSide kCurrentPendingTreeIsImplSide() { return {}; }
-  void set_current_pending_tree_is_impl_side(bool value) {
-    static constexpr uint32_t field_id = FieldMetadata_CurrentPendingTreeIsImplSide::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kBool>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_PreviousPendingTreeWasImplSide =
-    ::protozero::proto_utils::FieldMetadata<
-      43,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kBool,
-      bool,
-      ChromeCompositorStateMachine_MinorState>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_PreviousPendingTreeWasImplSide kPreviousPendingTreeWasImplSide() { return {}; }
-  void set_previous_pending_tree_was_impl_side(bool value) {
-    static constexpr uint32_t field_id = FieldMetadata_PreviousPendingTreeWasImplSide::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kBool>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_ProcessingAnimationWorkletsForActiveTree =
-    ::protozero::proto_utils::FieldMetadata<
-      44,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kBool,
-      bool,
-      ChromeCompositorStateMachine_MinorState>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_ProcessingAnimationWorkletsForActiveTree kProcessingAnimationWorkletsForActiveTree() { return {}; }
-  void set_processing_animation_worklets_for_active_tree(bool value) {
-    static constexpr uint32_t field_id = FieldMetadata_ProcessingAnimationWorkletsForActiveTree::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kBool>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_ProcessingAnimationWorkletsForPendingTree =
-    ::protozero::proto_utils::FieldMetadata<
-      45,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kBool,
-      bool,
-      ChromeCompositorStateMachine_MinorState>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_ProcessingAnimationWorkletsForPendingTree kProcessingAnimationWorkletsForPendingTree() { return {}; }
-  void set_processing_animation_worklets_for_pending_tree(bool value) {
-    static constexpr uint32_t field_id = FieldMetadata_ProcessingAnimationWorkletsForPendingTree::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kBool>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_ProcessingPaintWorkletsForPendingTree =
-    ::protozero::proto_utils::FieldMetadata<
-      46,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kBool,
-      bool,
-      ChromeCompositorStateMachine_MinorState>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_ProcessingPaintWorkletsForPendingTree kProcessingPaintWorkletsForPendingTree() { return {}; }
-  void set_processing_paint_worklets_for_pending_tree(bool value) {
-    static constexpr uint32_t field_id = FieldMetadata_ProcessingPaintWorkletsForPendingTree::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kBool>
-        ::Append(*this, field_id, value);
-  }
-};
-
-class ChromeCompositorStateMachine_MajorState_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/5, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  ChromeCompositorStateMachine_MajorState_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit ChromeCompositorStateMachine_MajorState_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit ChromeCompositorStateMachine_MajorState_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_next_action() const { return at<1>().valid(); }
-  int32_t next_action() const { return at<1>().as_int32(); }
-  bool has_begin_impl_frame_state() const { return at<2>().valid(); }
-  int32_t begin_impl_frame_state() const { return at<2>().as_int32(); }
-  bool has_begin_main_frame_state() const { return at<3>().valid(); }
-  int32_t begin_main_frame_state() const { return at<3>().as_int32(); }
-  bool has_layer_tree_frame_sink_state() const { return at<4>().valid(); }
-  int32_t layer_tree_frame_sink_state() const { return at<4>().as_int32(); }
-  bool has_forced_redraw_state() const { return at<5>().valid(); }
-  int32_t forced_redraw_state() const { return at<5>().as_int32(); }
-};
-
-class ChromeCompositorStateMachine_MajorState : public ::protozero::Message {
- public:
-  using Decoder = ChromeCompositorStateMachine_MajorState_Decoder;
-  enum : int32_t {
-    kNextActionFieldNumber = 1,
-    kBeginImplFrameStateFieldNumber = 2,
-    kBeginMainFrameStateFieldNumber = 3,
-    kLayerTreeFrameSinkStateFieldNumber = 4,
-    kForcedRedrawStateFieldNumber = 5,
-  };
-  using BeginImplFrameState = ::perfetto::protos::pbzero::ChromeCompositorStateMachine_MajorState_BeginImplFrameState;
-  using BeginMainFrameState = ::perfetto::protos::pbzero::ChromeCompositorStateMachine_MajorState_BeginMainFrameState;
-  using LayerTreeFrameSinkState = ::perfetto::protos::pbzero::ChromeCompositorStateMachine_MajorState_LayerTreeFrameSinkState;
-  using ForcedRedrawOnTimeoutState = ::perfetto::protos::pbzero::ChromeCompositorStateMachine_MajorState_ForcedRedrawOnTimeoutState;
-  static const BeginImplFrameState BEGIN_IMPL_FRAME_UNSPECIFIED = ChromeCompositorStateMachine_MajorState_BeginImplFrameState_BEGIN_IMPL_FRAME_UNSPECIFIED;
-  static const BeginImplFrameState BEGIN_IMPL_FRAME_IDLE = ChromeCompositorStateMachine_MajorState_BeginImplFrameState_BEGIN_IMPL_FRAME_IDLE;
-  static const BeginImplFrameState BEGIN_IMPL_FRAME_INSIDE_BEGIN_FRAME = ChromeCompositorStateMachine_MajorState_BeginImplFrameState_BEGIN_IMPL_FRAME_INSIDE_BEGIN_FRAME;
-  static const BeginImplFrameState BEGIN_IMPL_FRAME_INSIDE_DEADLINE = ChromeCompositorStateMachine_MajorState_BeginImplFrameState_BEGIN_IMPL_FRAME_INSIDE_DEADLINE;
-  static const BeginMainFrameState BEGIN_MAIN_FRAME_UNSPECIFIED = ChromeCompositorStateMachine_MajorState_BeginMainFrameState_BEGIN_MAIN_FRAME_UNSPECIFIED;
-  static const BeginMainFrameState BEGIN_MAIN_FRAME_IDLE = ChromeCompositorStateMachine_MajorState_BeginMainFrameState_BEGIN_MAIN_FRAME_IDLE;
-  static const BeginMainFrameState BEGIN_MAIN_FRAME_SENT = ChromeCompositorStateMachine_MajorState_BeginMainFrameState_BEGIN_MAIN_FRAME_SENT;
-  static const BeginMainFrameState BEGIN_MAIN_FRAME_READY_TO_COMMIT = ChromeCompositorStateMachine_MajorState_BeginMainFrameState_BEGIN_MAIN_FRAME_READY_TO_COMMIT;
-  static const LayerTreeFrameSinkState LAYER_TREE_FRAME_UNSPECIFIED = ChromeCompositorStateMachine_MajorState_LayerTreeFrameSinkState_LAYER_TREE_FRAME_UNSPECIFIED;
-  static const LayerTreeFrameSinkState LAYER_TREE_FRAME_NONE = ChromeCompositorStateMachine_MajorState_LayerTreeFrameSinkState_LAYER_TREE_FRAME_NONE;
-  static const LayerTreeFrameSinkState LAYER_TREE_FRAME_ACTIVE = ChromeCompositorStateMachine_MajorState_LayerTreeFrameSinkState_LAYER_TREE_FRAME_ACTIVE;
-  static const LayerTreeFrameSinkState LAYER_TREE_FRAME_CREATING = ChromeCompositorStateMachine_MajorState_LayerTreeFrameSinkState_LAYER_TREE_FRAME_CREATING;
-  static const LayerTreeFrameSinkState LAYER_TREE_FRAME_WAITING_FOR_FIRST_COMMIT = ChromeCompositorStateMachine_MajorState_LayerTreeFrameSinkState_LAYER_TREE_FRAME_WAITING_FOR_FIRST_COMMIT;
-  static const LayerTreeFrameSinkState LAYER_TREE_FRAME_WAITING_FOR_FIRST_ACTIVATION = ChromeCompositorStateMachine_MajorState_LayerTreeFrameSinkState_LAYER_TREE_FRAME_WAITING_FOR_FIRST_ACTIVATION;
-  static const ForcedRedrawOnTimeoutState FORCED_REDRAW_UNSPECIFIED = ChromeCompositorStateMachine_MajorState_ForcedRedrawOnTimeoutState_FORCED_REDRAW_UNSPECIFIED;
-  static const ForcedRedrawOnTimeoutState FORCED_REDRAW_IDLE = ChromeCompositorStateMachine_MajorState_ForcedRedrawOnTimeoutState_FORCED_REDRAW_IDLE;
-  static const ForcedRedrawOnTimeoutState FORCED_REDRAW_WAITING_FOR_COMMIT = ChromeCompositorStateMachine_MajorState_ForcedRedrawOnTimeoutState_FORCED_REDRAW_WAITING_FOR_COMMIT;
-  static const ForcedRedrawOnTimeoutState FORCED_REDRAW_WAITING_FOR_ACTIVATION = ChromeCompositorStateMachine_MajorState_ForcedRedrawOnTimeoutState_FORCED_REDRAW_WAITING_FOR_ACTIVATION;
-  static const ForcedRedrawOnTimeoutState FORCED_REDRAW_WAITING_FOR_DRAW = ChromeCompositorStateMachine_MajorState_ForcedRedrawOnTimeoutState_FORCED_REDRAW_WAITING_FOR_DRAW;
-
-  using FieldMetadata_NextAction =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kEnum,
-      ::perfetto::protos::pbzero::ChromeCompositorSchedulerAction,
-      ChromeCompositorStateMachine_MajorState>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_NextAction kNextAction() { return {}; }
-  void set_next_action(::perfetto::protos::pbzero::ChromeCompositorSchedulerAction value) {
-    static constexpr uint32_t field_id = FieldMetadata_NextAction::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kEnum>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_BeginImplFrameState =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kEnum,
-      ::perfetto::protos::pbzero::ChromeCompositorStateMachine_MajorState_BeginImplFrameState,
-      ChromeCompositorStateMachine_MajorState>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_BeginImplFrameState kBeginImplFrameState() { return {}; }
-  void set_begin_impl_frame_state(::perfetto::protos::pbzero::ChromeCompositorStateMachine_MajorState_BeginImplFrameState value) {
-    static constexpr uint32_t field_id = FieldMetadata_BeginImplFrameState::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kEnum>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_BeginMainFrameState =
-    ::protozero::proto_utils::FieldMetadata<
-      3,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kEnum,
-      ::perfetto::protos::pbzero::ChromeCompositorStateMachine_MajorState_BeginMainFrameState,
-      ChromeCompositorStateMachine_MajorState>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_BeginMainFrameState kBeginMainFrameState() { return {}; }
-  void set_begin_main_frame_state(::perfetto::protos::pbzero::ChromeCompositorStateMachine_MajorState_BeginMainFrameState value) {
-    static constexpr uint32_t field_id = FieldMetadata_BeginMainFrameState::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kEnum>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_LayerTreeFrameSinkState =
-    ::protozero::proto_utils::FieldMetadata<
-      4,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kEnum,
-      ::perfetto::protos::pbzero::ChromeCompositorStateMachine_MajorState_LayerTreeFrameSinkState,
-      ChromeCompositorStateMachine_MajorState>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_LayerTreeFrameSinkState kLayerTreeFrameSinkState() { return {}; }
-  void set_layer_tree_frame_sink_state(::perfetto::protos::pbzero::ChromeCompositorStateMachine_MajorState_LayerTreeFrameSinkState value) {
-    static constexpr uint32_t field_id = FieldMetadata_LayerTreeFrameSinkState::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kEnum>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_ForcedRedrawState =
-    ::protozero::proto_utils::FieldMetadata<
-      5,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kEnum,
-      ::perfetto::protos::pbzero::ChromeCompositorStateMachine_MajorState_ForcedRedrawOnTimeoutState,
-      ChromeCompositorStateMachine_MajorState>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_ForcedRedrawState kForcedRedrawState() { return {}; }
-  void set_forced_redraw_state(::perfetto::protos::pbzero::ChromeCompositorStateMachine_MajorState_ForcedRedrawOnTimeoutState value) {
-    static constexpr uint32_t field_id = FieldMetadata_ForcedRedrawState::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kEnum>
-        ::Append(*this, field_id, value);
-  }
-};
-
-class ChromeCompositorSchedulerState_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/17, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  ChromeCompositorSchedulerState_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit ChromeCompositorSchedulerState_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit ChromeCompositorSchedulerState_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_state_machine() const { return at<1>().valid(); }
-  ::protozero::ConstBytes state_machine() const { return at<1>().as_bytes(); }
-  bool has_observing_begin_frame_source() const { return at<2>().valid(); }
-  bool observing_begin_frame_source() const { return at<2>().as_bool(); }
-  bool has_begin_impl_frame_deadline_task() const { return at<3>().valid(); }
-  bool begin_impl_frame_deadline_task() const { return at<3>().as_bool(); }
-  bool has_pending_begin_frame_task() const { return at<4>().valid(); }
-  bool pending_begin_frame_task() const { return at<4>().as_bool(); }
-  bool has_skipped_last_frame_missed_exceeded_deadline() const { return at<5>().valid(); }
-  bool skipped_last_frame_missed_exceeded_deadline() const { return at<5>().as_bool(); }
-  bool has_skipped_last_frame_to_reduce_latency() const { return at<6>().valid(); }
-  bool skipped_last_frame_to_reduce_latency() const { return at<6>().as_bool(); }
-  bool has_inside_action() const { return at<7>().valid(); }
-  int32_t inside_action() const { return at<7>().as_int32(); }
-  bool has_deadline_mode() const { return at<8>().valid(); }
-  int32_t deadline_mode() const { return at<8>().as_int32(); }
-  bool has_deadline_us() const { return at<9>().valid(); }
-  int64_t deadline_us() const { return at<9>().as_int64(); }
-  bool has_deadline_scheduled_at_us() const { return at<10>().valid(); }
-  int64_t deadline_scheduled_at_us() const { return at<10>().as_int64(); }
-  bool has_now_us() const { return at<11>().valid(); }
-  int64_t now_us() const { return at<11>().as_int64(); }
-  bool has_now_to_deadline_delta_us() const { return at<12>().valid(); }
-  int64_t now_to_deadline_delta_us() const { return at<12>().as_int64(); }
-  bool has_now_to_deadline_scheduled_at_delta_us() const { return at<13>().valid(); }
-  int64_t now_to_deadline_scheduled_at_delta_us() const { return at<13>().as_int64(); }
-  bool has_begin_impl_frame_args() const { return at<14>().valid(); }
-  ::protozero::ConstBytes begin_impl_frame_args() const { return at<14>().as_bytes(); }
-  bool has_begin_frame_observer_state() const { return at<15>().valid(); }
-  ::protozero::ConstBytes begin_frame_observer_state() const { return at<15>().as_bytes(); }
-  bool has_begin_frame_source_state() const { return at<16>().valid(); }
-  ::protozero::ConstBytes begin_frame_source_state() const { return at<16>().as_bytes(); }
-  bool has_compositor_timing_history() const { return at<17>().valid(); }
-  ::protozero::ConstBytes compositor_timing_history() const { return at<17>().as_bytes(); }
-};
-
-class ChromeCompositorSchedulerState : public ::protozero::Message {
- public:
-  using Decoder = ChromeCompositorSchedulerState_Decoder;
-  enum : int32_t {
-    kStateMachineFieldNumber = 1,
-    kObservingBeginFrameSourceFieldNumber = 2,
-    kBeginImplFrameDeadlineTaskFieldNumber = 3,
-    kPendingBeginFrameTaskFieldNumber = 4,
-    kSkippedLastFrameMissedExceededDeadlineFieldNumber = 5,
-    kSkippedLastFrameToReduceLatencyFieldNumber = 6,
-    kInsideActionFieldNumber = 7,
-    kDeadlineModeFieldNumber = 8,
-    kDeadlineUsFieldNumber = 9,
-    kDeadlineScheduledAtUsFieldNumber = 10,
-    kNowUsFieldNumber = 11,
-    kNowToDeadlineDeltaUsFieldNumber = 12,
-    kNowToDeadlineScheduledAtDeltaUsFieldNumber = 13,
-    kBeginImplFrameArgsFieldNumber = 14,
-    kBeginFrameObserverStateFieldNumber = 15,
-    kBeginFrameSourceStateFieldNumber = 16,
-    kCompositorTimingHistoryFieldNumber = 17,
-  };
-  using BeginImplFrameDeadlineMode = ::perfetto::protos::pbzero::ChromeCompositorSchedulerState_BeginImplFrameDeadlineMode;
-  static const BeginImplFrameDeadlineMode DEADLINE_MODE_UNSPECIFIED = ChromeCompositorSchedulerState_BeginImplFrameDeadlineMode_DEADLINE_MODE_UNSPECIFIED;
-  static const BeginImplFrameDeadlineMode DEADLINE_MODE_NONE = ChromeCompositorSchedulerState_BeginImplFrameDeadlineMode_DEADLINE_MODE_NONE;
-  static const BeginImplFrameDeadlineMode DEADLINE_MODE_IMMEDIATE = ChromeCompositorSchedulerState_BeginImplFrameDeadlineMode_DEADLINE_MODE_IMMEDIATE;
-  static const BeginImplFrameDeadlineMode DEADLINE_MODE_REGULAR = ChromeCompositorSchedulerState_BeginImplFrameDeadlineMode_DEADLINE_MODE_REGULAR;
-  static const BeginImplFrameDeadlineMode DEADLINE_MODE_LATE = ChromeCompositorSchedulerState_BeginImplFrameDeadlineMode_DEADLINE_MODE_LATE;
-  static const BeginImplFrameDeadlineMode DEADLINE_MODE_BLOCKED = ChromeCompositorSchedulerState_BeginImplFrameDeadlineMode_DEADLINE_MODE_BLOCKED;
-
-  using FieldMetadata_StateMachine =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      ChromeCompositorStateMachine,
-      ChromeCompositorSchedulerState>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_StateMachine kStateMachine() { return {}; }
-  template <typename T = ChromeCompositorStateMachine> T* set_state_machine() {
-    return BeginNestedMessage<T>(1);
-  }
-
-
-  using FieldMetadata_ObservingBeginFrameSource =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kBool,
-      bool,
-      ChromeCompositorSchedulerState>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_ObservingBeginFrameSource kObservingBeginFrameSource() { return {}; }
-  void set_observing_begin_frame_source(bool value) {
-    static constexpr uint32_t field_id = FieldMetadata_ObservingBeginFrameSource::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kBool>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_BeginImplFrameDeadlineTask =
-    ::protozero::proto_utils::FieldMetadata<
-      3,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kBool,
-      bool,
-      ChromeCompositorSchedulerState>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_BeginImplFrameDeadlineTask kBeginImplFrameDeadlineTask() { return {}; }
-  void set_begin_impl_frame_deadline_task(bool value) {
-    static constexpr uint32_t field_id = FieldMetadata_BeginImplFrameDeadlineTask::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kBool>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_PendingBeginFrameTask =
-    ::protozero::proto_utils::FieldMetadata<
-      4,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kBool,
-      bool,
-      ChromeCompositorSchedulerState>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_PendingBeginFrameTask kPendingBeginFrameTask() { return {}; }
-  void set_pending_begin_frame_task(bool value) {
-    static constexpr uint32_t field_id = FieldMetadata_PendingBeginFrameTask::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kBool>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_SkippedLastFrameMissedExceededDeadline =
-    ::protozero::proto_utils::FieldMetadata<
-      5,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kBool,
-      bool,
-      ChromeCompositorSchedulerState>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_SkippedLastFrameMissedExceededDeadline kSkippedLastFrameMissedExceededDeadline() { return {}; }
-  void set_skipped_last_frame_missed_exceeded_deadline(bool value) {
-    static constexpr uint32_t field_id = FieldMetadata_SkippedLastFrameMissedExceededDeadline::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kBool>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_SkippedLastFrameToReduceLatency =
-    ::protozero::proto_utils::FieldMetadata<
-      6,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kBool,
-      bool,
-      ChromeCompositorSchedulerState>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_SkippedLastFrameToReduceLatency kSkippedLastFrameToReduceLatency() { return {}; }
-  void set_skipped_last_frame_to_reduce_latency(bool value) {
-    static constexpr uint32_t field_id = FieldMetadata_SkippedLastFrameToReduceLatency::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kBool>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_InsideAction =
-    ::protozero::proto_utils::FieldMetadata<
-      7,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kEnum,
-      ::perfetto::protos::pbzero::ChromeCompositorSchedulerAction,
-      ChromeCompositorSchedulerState>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_InsideAction kInsideAction() { return {}; }
-  void set_inside_action(::perfetto::protos::pbzero::ChromeCompositorSchedulerAction value) {
-    static constexpr uint32_t field_id = FieldMetadata_InsideAction::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kEnum>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_DeadlineMode =
-    ::protozero::proto_utils::FieldMetadata<
-      8,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kEnum,
-      ::perfetto::protos::pbzero::ChromeCompositorSchedulerState_BeginImplFrameDeadlineMode,
-      ChromeCompositorSchedulerState>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_DeadlineMode kDeadlineMode() { return {}; }
-  void set_deadline_mode(::perfetto::protos::pbzero::ChromeCompositorSchedulerState_BeginImplFrameDeadlineMode value) {
-    static constexpr uint32_t field_id = FieldMetadata_DeadlineMode::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kEnum>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_DeadlineUs =
-    ::protozero::proto_utils::FieldMetadata<
-      9,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt64,
-      int64_t,
-      ChromeCompositorSchedulerState>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_DeadlineUs kDeadlineUs() { return {}; }
-  void set_deadline_us(int64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_DeadlineUs::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_DeadlineScheduledAtUs =
-    ::protozero::proto_utils::FieldMetadata<
-      10,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt64,
-      int64_t,
-      ChromeCompositorSchedulerState>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_DeadlineScheduledAtUs kDeadlineScheduledAtUs() { return {}; }
-  void set_deadline_scheduled_at_us(int64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_DeadlineScheduledAtUs::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_NowUs =
-    ::protozero::proto_utils::FieldMetadata<
-      11,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt64,
-      int64_t,
-      ChromeCompositorSchedulerState>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_NowUs kNowUs() { return {}; }
-  void set_now_us(int64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_NowUs::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_NowToDeadlineDeltaUs =
-    ::protozero::proto_utils::FieldMetadata<
-      12,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt64,
-      int64_t,
-      ChromeCompositorSchedulerState>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_NowToDeadlineDeltaUs kNowToDeadlineDeltaUs() { return {}; }
-  void set_now_to_deadline_delta_us(int64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_NowToDeadlineDeltaUs::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_NowToDeadlineScheduledAtDeltaUs =
-    ::protozero::proto_utils::FieldMetadata<
-      13,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt64,
-      int64_t,
-      ChromeCompositorSchedulerState>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_NowToDeadlineScheduledAtDeltaUs kNowToDeadlineScheduledAtDeltaUs() { return {}; }
-  void set_now_to_deadline_scheduled_at_delta_us(int64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_NowToDeadlineScheduledAtDeltaUs::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_BeginImplFrameArgs =
-    ::protozero::proto_utils::FieldMetadata<
-      14,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      BeginImplFrameArgs,
-      ChromeCompositorSchedulerState>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_BeginImplFrameArgs kBeginImplFrameArgs() { return {}; }
-  template <typename T = BeginImplFrameArgs> T* set_begin_impl_frame_args() {
-    return BeginNestedMessage<T>(14);
-  }
-
-
-  using FieldMetadata_BeginFrameObserverState =
-    ::protozero::proto_utils::FieldMetadata<
-      15,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      BeginFrameObserverState,
-      ChromeCompositorSchedulerState>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_BeginFrameObserverState kBeginFrameObserverState() { return {}; }
-  template <typename T = BeginFrameObserverState> T* set_begin_frame_observer_state() {
-    return BeginNestedMessage<T>(15);
-  }
-
-
-  using FieldMetadata_BeginFrameSourceState =
-    ::protozero::proto_utils::FieldMetadata<
-      16,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      BeginFrameSourceState,
-      ChromeCompositorSchedulerState>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_BeginFrameSourceState kBeginFrameSourceState() { return {}; }
-  template <typename T = BeginFrameSourceState> T* set_begin_frame_source_state() {
-    return BeginNestedMessage<T>(16);
-  }
-
-
-  using FieldMetadata_CompositorTimingHistory =
-    ::protozero::proto_utils::FieldMetadata<
-      17,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      CompositorTimingHistory,
-      ChromeCompositorSchedulerState>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_CompositorTimingHistory kCompositorTimingHistory() { return {}; }
-  template <typename T = CompositorTimingHistory> T* set_compositor_timing_history() {
-    return BeginNestedMessage<T>(17);
-  }
-
-};
-
-} // Namespace.
-} // Namespace.
-} // Namespace.
-#endif  // Include guard.
-// gen_amalgamated begin header: gen/protos/perfetto/trace/track_event/chrome_content_settings_event_info.pbzero.h
-// Autogenerated by the ProtoZero compiler plugin. DO NOT EDIT.
-
-#ifndef PERFETTO_PROTOS_PROTOS_PERFETTO_TRACE_TRACK_EVENT_CHROME_CONTENT_SETTINGS_EVENT_INFO_PROTO_H_
-#define PERFETTO_PROTOS_PROTOS_PERFETTO_TRACE_TRACK_EVENT_CHROME_CONTENT_SETTINGS_EVENT_INFO_PROTO_H_
-
-#include <stddef.h>
-#include <stdint.h>
-
-// gen_amalgamated expanded: #include "perfetto/protozero/field_writer.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/message.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/packed_repeated_fields.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/proto_decoder.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/proto_utils.h"
-
-namespace perfetto {
-namespace protos {
-namespace pbzero {
-
-
-class ChromeContentSettingsEventInfo_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/1, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  ChromeContentSettingsEventInfo_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit ChromeContentSettingsEventInfo_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit ChromeContentSettingsEventInfo_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_number_of_exceptions() const { return at<1>().valid(); }
-  uint32_t number_of_exceptions() const { return at<1>().as_uint32(); }
-};
-
-class ChromeContentSettingsEventInfo : public ::protozero::Message {
- public:
-  using Decoder = ChromeContentSettingsEventInfo_Decoder;
-  enum : int32_t {
-    kNumberOfExceptionsFieldNumber = 1,
-  };
-
-  using FieldMetadata_NumberOfExceptions =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      ChromeContentSettingsEventInfo>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_NumberOfExceptions kNumberOfExceptions() { return {}; }
-  void set_number_of_exceptions(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_NumberOfExceptions::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-};
-
-} // Namespace.
-} // Namespace.
-} // Namespace.
-#endif  // Include guard.
-// gen_amalgamated begin header: gen/protos/perfetto/trace/track_event/chrome_frame_reporter.pbzero.h
-// Autogenerated by the ProtoZero compiler plugin. DO NOT EDIT.
-
-#ifndef PERFETTO_PROTOS_PROTOS_PERFETTO_TRACE_TRACK_EVENT_CHROME_FRAME_REPORTER_PROTO_H_
-#define PERFETTO_PROTOS_PROTOS_PERFETTO_TRACE_TRACK_EVENT_CHROME_FRAME_REPORTER_PROTO_H_
-
-#include <stddef.h>
-#include <stdint.h>
-
-// gen_amalgamated expanded: #include "perfetto/protozero/field_writer.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/message.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/packed_repeated_fields.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/proto_decoder.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/proto_utils.h"
-
-namespace perfetto {
-namespace protos {
-namespace pbzero {
-
-enum ChromeFrameReporter_FrameDropReason : int32_t;
-enum ChromeFrameReporter_ScrollState : int32_t;
-enum ChromeFrameReporter_State : int32_t;
-
-enum ChromeFrameReporter_State : int32_t {
-  ChromeFrameReporter_State_STATE_NO_UPDATE_DESIRED = 0,
-  ChromeFrameReporter_State_STATE_PRESENTED_ALL = 1,
-  ChromeFrameReporter_State_STATE_PRESENTED_PARTIAL = 2,
-  ChromeFrameReporter_State_STATE_DROPPED = 3,
-};
-
-const ChromeFrameReporter_State ChromeFrameReporter_State_MIN = ChromeFrameReporter_State_STATE_NO_UPDATE_DESIRED;
-const ChromeFrameReporter_State ChromeFrameReporter_State_MAX = ChromeFrameReporter_State_STATE_DROPPED;
-
-enum ChromeFrameReporter_FrameDropReason : int32_t {
-  ChromeFrameReporter_FrameDropReason_REASON_UNSPECIFIED = 0,
-  ChromeFrameReporter_FrameDropReason_REASON_DISPLAY_COMPOSITOR = 1,
-  ChromeFrameReporter_FrameDropReason_REASON_MAIN_THREAD = 2,
-  ChromeFrameReporter_FrameDropReason_REASON_CLIENT_COMPOSITOR = 3,
-};
-
-const ChromeFrameReporter_FrameDropReason ChromeFrameReporter_FrameDropReason_MIN = ChromeFrameReporter_FrameDropReason_REASON_UNSPECIFIED;
-const ChromeFrameReporter_FrameDropReason ChromeFrameReporter_FrameDropReason_MAX = ChromeFrameReporter_FrameDropReason_REASON_CLIENT_COMPOSITOR;
-
-enum ChromeFrameReporter_ScrollState : int32_t {
-  ChromeFrameReporter_ScrollState_SCROLL_NONE = 0,
-  ChromeFrameReporter_ScrollState_SCROLL_MAIN_THREAD = 1,
-  ChromeFrameReporter_ScrollState_SCROLL_COMPOSITOR_THREAD = 2,
-  ChromeFrameReporter_ScrollState_SCROLL_UNKNOWN = 3,
-};
-
-const ChromeFrameReporter_ScrollState ChromeFrameReporter_ScrollState_MIN = ChromeFrameReporter_ScrollState_SCROLL_NONE;
-const ChromeFrameReporter_ScrollState ChromeFrameReporter_ScrollState_MAX = ChromeFrameReporter_ScrollState_SCROLL_UNKNOWN;
-
-class ChromeFrameReporter_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/11, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  ChromeFrameReporter_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit ChromeFrameReporter_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit ChromeFrameReporter_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_state() const { return at<1>().valid(); }
-  int32_t state() const { return at<1>().as_int32(); }
-  bool has_reason() const { return at<2>().valid(); }
-  int32_t reason() const { return at<2>().as_int32(); }
-  bool has_frame_source() const { return at<3>().valid(); }
-  uint64_t frame_source() const { return at<3>().as_uint64(); }
-  bool has_frame_sequence() const { return at<4>().valid(); }
-  uint64_t frame_sequence() const { return at<4>().as_uint64(); }
-  bool has_affects_smoothness() const { return at<5>().valid(); }
-  bool affects_smoothness() const { return at<5>().as_bool(); }
-  bool has_scroll_state() const { return at<6>().valid(); }
-  int32_t scroll_state() const { return at<6>().as_int32(); }
-  bool has_has_main_animation() const { return at<7>().valid(); }
-  bool has_main_animation() const { return at<7>().as_bool(); }
-  bool has_has_compositor_animation() const { return at<8>().valid(); }
-  bool has_compositor_animation() const { return at<8>().as_bool(); }
-  bool has_has_smooth_input_main() const { return at<9>().valid(); }
-  bool has_smooth_input_main() const { return at<9>().as_bool(); }
-  bool has_has_missing_content() const { return at<10>().valid(); }
-  bool has_missing_content() const { return at<10>().as_bool(); }
-  bool has_layer_tree_host_id() const { return at<11>().valid(); }
-  uint64_t layer_tree_host_id() const { return at<11>().as_uint64(); }
-};
-
-class ChromeFrameReporter : public ::protozero::Message {
- public:
-  using Decoder = ChromeFrameReporter_Decoder;
-  enum : int32_t {
-    kStateFieldNumber = 1,
-    kReasonFieldNumber = 2,
-    kFrameSourceFieldNumber = 3,
-    kFrameSequenceFieldNumber = 4,
-    kAffectsSmoothnessFieldNumber = 5,
-    kScrollStateFieldNumber = 6,
-    kHasMainAnimationFieldNumber = 7,
-    kHasCompositorAnimationFieldNumber = 8,
-    kHasSmoothInputMainFieldNumber = 9,
-    kHasMissingContentFieldNumber = 10,
-    kLayerTreeHostIdFieldNumber = 11,
-  };
-  using State = ::perfetto::protos::pbzero::ChromeFrameReporter_State;
-  using FrameDropReason = ::perfetto::protos::pbzero::ChromeFrameReporter_FrameDropReason;
-  using ScrollState = ::perfetto::protos::pbzero::ChromeFrameReporter_ScrollState;
-  static const State STATE_NO_UPDATE_DESIRED = ChromeFrameReporter_State_STATE_NO_UPDATE_DESIRED;
-  static const State STATE_PRESENTED_ALL = ChromeFrameReporter_State_STATE_PRESENTED_ALL;
-  static const State STATE_PRESENTED_PARTIAL = ChromeFrameReporter_State_STATE_PRESENTED_PARTIAL;
-  static const State STATE_DROPPED = ChromeFrameReporter_State_STATE_DROPPED;
-  static const FrameDropReason REASON_UNSPECIFIED = ChromeFrameReporter_FrameDropReason_REASON_UNSPECIFIED;
-  static const FrameDropReason REASON_DISPLAY_COMPOSITOR = ChromeFrameReporter_FrameDropReason_REASON_DISPLAY_COMPOSITOR;
-  static const FrameDropReason REASON_MAIN_THREAD = ChromeFrameReporter_FrameDropReason_REASON_MAIN_THREAD;
-  static const FrameDropReason REASON_CLIENT_COMPOSITOR = ChromeFrameReporter_FrameDropReason_REASON_CLIENT_COMPOSITOR;
-  static const ScrollState SCROLL_NONE = ChromeFrameReporter_ScrollState_SCROLL_NONE;
-  static const ScrollState SCROLL_MAIN_THREAD = ChromeFrameReporter_ScrollState_SCROLL_MAIN_THREAD;
-  static const ScrollState SCROLL_COMPOSITOR_THREAD = ChromeFrameReporter_ScrollState_SCROLL_COMPOSITOR_THREAD;
-  static const ScrollState SCROLL_UNKNOWN = ChromeFrameReporter_ScrollState_SCROLL_UNKNOWN;
-
-  using FieldMetadata_State =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kEnum,
-      ::perfetto::protos::pbzero::ChromeFrameReporter_State,
-      ChromeFrameReporter>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_State kState() { return {}; }
-  void set_state(::perfetto::protos::pbzero::ChromeFrameReporter_State value) {
-    static constexpr uint32_t field_id = FieldMetadata_State::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kEnum>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Reason =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kEnum,
-      ::perfetto::protos::pbzero::ChromeFrameReporter_FrameDropReason,
-      ChromeFrameReporter>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Reason kReason() { return {}; }
-  void set_reason(::perfetto::protos::pbzero::ChromeFrameReporter_FrameDropReason value) {
-    static constexpr uint32_t field_id = FieldMetadata_Reason::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kEnum>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_FrameSource =
-    ::protozero::proto_utils::FieldMetadata<
-      3,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      ChromeFrameReporter>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_FrameSource kFrameSource() { return {}; }
-  void set_frame_source(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_FrameSource::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_FrameSequence =
-    ::protozero::proto_utils::FieldMetadata<
-      4,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      ChromeFrameReporter>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_FrameSequence kFrameSequence() { return {}; }
-  void set_frame_sequence(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_FrameSequence::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_AffectsSmoothness =
-    ::protozero::proto_utils::FieldMetadata<
-      5,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kBool,
-      bool,
-      ChromeFrameReporter>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_AffectsSmoothness kAffectsSmoothness() { return {}; }
-  void set_affects_smoothness(bool value) {
-    static constexpr uint32_t field_id = FieldMetadata_AffectsSmoothness::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kBool>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_ScrollState =
-    ::protozero::proto_utils::FieldMetadata<
-      6,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kEnum,
-      ::perfetto::protos::pbzero::ChromeFrameReporter_ScrollState,
-      ChromeFrameReporter>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_ScrollState kScrollState() { return {}; }
-  void set_scroll_state(::perfetto::protos::pbzero::ChromeFrameReporter_ScrollState value) {
-    static constexpr uint32_t field_id = FieldMetadata_ScrollState::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kEnum>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_HasMainAnimation =
-    ::protozero::proto_utils::FieldMetadata<
-      7,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kBool,
-      bool,
-      ChromeFrameReporter>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_HasMainAnimation kHasMainAnimation() { return {}; }
-  void set_has_main_animation(bool value) {
-    static constexpr uint32_t field_id = FieldMetadata_HasMainAnimation::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kBool>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_HasCompositorAnimation =
-    ::protozero::proto_utils::FieldMetadata<
-      8,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kBool,
-      bool,
-      ChromeFrameReporter>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_HasCompositorAnimation kHasCompositorAnimation() { return {}; }
-  void set_has_compositor_animation(bool value) {
-    static constexpr uint32_t field_id = FieldMetadata_HasCompositorAnimation::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kBool>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_HasSmoothInputMain =
-    ::protozero::proto_utils::FieldMetadata<
-      9,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kBool,
-      bool,
-      ChromeFrameReporter>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_HasSmoothInputMain kHasSmoothInputMain() { return {}; }
-  void set_has_smooth_input_main(bool value) {
-    static constexpr uint32_t field_id = FieldMetadata_HasSmoothInputMain::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kBool>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_HasMissingContent =
-    ::protozero::proto_utils::FieldMetadata<
-      10,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kBool,
-      bool,
-      ChromeFrameReporter>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_HasMissingContent kHasMissingContent() { return {}; }
-  void set_has_missing_content(bool value) {
-    static constexpr uint32_t field_id = FieldMetadata_HasMissingContent::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kBool>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_LayerTreeHostId =
-    ::protozero::proto_utils::FieldMetadata<
-      11,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      ChromeFrameReporter>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_LayerTreeHostId kLayerTreeHostId() { return {}; }
-  void set_layer_tree_host_id(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_LayerTreeHostId::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-};
-
-} // Namespace.
-} // Namespace.
-} // Namespace.
-#endif  // Include guard.
-// gen_amalgamated begin header: gen/protos/perfetto/trace/track_event/chrome_histogram_sample.pbzero.h
-// Autogenerated by the ProtoZero compiler plugin. DO NOT EDIT.
-
-#ifndef PERFETTO_PROTOS_PROTOS_PERFETTO_TRACE_TRACK_EVENT_CHROME_HISTOGRAM_SAMPLE_PROTO_H_
-#define PERFETTO_PROTOS_PROTOS_PERFETTO_TRACE_TRACK_EVENT_CHROME_HISTOGRAM_SAMPLE_PROTO_H_
-
-#include <stddef.h>
-#include <stdint.h>
-
-// gen_amalgamated expanded: #include "perfetto/protozero/field_writer.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/message.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/packed_repeated_fields.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/proto_decoder.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/proto_utils.h"
-
-namespace perfetto {
-namespace protos {
-namespace pbzero {
-
-
-class ChromeHistogramSample_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/4, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  ChromeHistogramSample_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit ChromeHistogramSample_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit ChromeHistogramSample_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_name_hash() const { return at<1>().valid(); }
-  uint64_t name_hash() const { return at<1>().as_uint64(); }
-  bool has_name() const { return at<2>().valid(); }
-  ::protozero::ConstChars name() const { return at<2>().as_string(); }
-  bool has_sample() const { return at<3>().valid(); }
-  int64_t sample() const { return at<3>().as_int64(); }
-  bool has_name_iid() const { return at<4>().valid(); }
-  uint64_t name_iid() const { return at<4>().as_uint64(); }
-};
-
-class ChromeHistogramSample : public ::protozero::Message {
- public:
-  using Decoder = ChromeHistogramSample_Decoder;
-  enum : int32_t {
-    kNameHashFieldNumber = 1,
-    kNameFieldNumber = 2,
-    kSampleFieldNumber = 3,
-    kNameIidFieldNumber = 4,
-  };
-
-  using FieldMetadata_NameHash =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      ChromeHistogramSample>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_NameHash kNameHash() { return {}; }
-  void set_name_hash(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_NameHash::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Name =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kString,
-      std::string,
-      ChromeHistogramSample>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Name kName() { return {}; }
-  void set_name(const char* data, size_t size) {
-    AppendBytes(FieldMetadata_Name::kFieldId, data, size);
-  }
-  void set_name(std::string value) {
-    static constexpr uint32_t field_id = FieldMetadata_Name::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kString>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Sample =
-    ::protozero::proto_utils::FieldMetadata<
-      3,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt64,
-      int64_t,
-      ChromeHistogramSample>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Sample kSample() { return {}; }
-  void set_sample(int64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Sample::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_NameIid =
-    ::protozero::proto_utils::FieldMetadata<
-      4,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      ChromeHistogramSample>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_NameIid kNameIid() { return {}; }
-  void set_name_iid(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_NameIid::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-};
-
-class HistogramName_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/2, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  HistogramName_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit HistogramName_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit HistogramName_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_iid() const { return at<1>().valid(); }
-  uint64_t iid() const { return at<1>().as_uint64(); }
-  bool has_name() const { return at<2>().valid(); }
-  ::protozero::ConstChars name() const { return at<2>().as_string(); }
-};
-
-class HistogramName : public ::protozero::Message {
- public:
-  using Decoder = HistogramName_Decoder;
-  enum : int32_t {
-    kIidFieldNumber = 1,
-    kNameFieldNumber = 2,
-  };
-
-  using FieldMetadata_Iid =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      HistogramName>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Iid kIid() { return {}; }
-  void set_iid(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Iid::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Name =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kString,
-      std::string,
-      HistogramName>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Name kName() { return {}; }
-  void set_name(const char* data, size_t size) {
-    AppendBytes(FieldMetadata_Name::kFieldId, data, size);
-  }
-  void set_name(std::string value) {
-    static constexpr uint32_t field_id = FieldMetadata_Name::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kString>
-        ::Append(*this, field_id, value);
-  }
-};
-
-} // Namespace.
-} // Namespace.
-} // Namespace.
-#endif  // Include guard.
-// gen_amalgamated begin header: gen/protos/perfetto/trace/track_event/chrome_keyed_service.pbzero.h
-// Autogenerated by the ProtoZero compiler plugin. DO NOT EDIT.
-
-#ifndef PERFETTO_PROTOS_PROTOS_PERFETTO_TRACE_TRACK_EVENT_CHROME_KEYED_SERVICE_PROTO_H_
-#define PERFETTO_PROTOS_PROTOS_PERFETTO_TRACE_TRACK_EVENT_CHROME_KEYED_SERVICE_PROTO_H_
-
-#include <stddef.h>
-#include <stdint.h>
-
-// gen_amalgamated expanded: #include "perfetto/protozero/field_writer.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/message.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/packed_repeated_fields.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/proto_decoder.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/proto_utils.h"
-
-namespace perfetto {
-namespace protos {
-namespace pbzero {
-
-
-class ChromeKeyedService_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/1, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  ChromeKeyedService_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit ChromeKeyedService_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit ChromeKeyedService_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_name() const { return at<1>().valid(); }
-  ::protozero::ConstChars name() const { return at<1>().as_string(); }
-};
-
-class ChromeKeyedService : public ::protozero::Message {
- public:
-  using Decoder = ChromeKeyedService_Decoder;
-  enum : int32_t {
-    kNameFieldNumber = 1,
-  };
-
-  using FieldMetadata_Name =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kString,
-      std::string,
-      ChromeKeyedService>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Name kName() { return {}; }
-  void set_name(const char* data, size_t size) {
-    AppendBytes(FieldMetadata_Name::kFieldId, data, size);
-  }
-  void set_name(std::string value) {
-    static constexpr uint32_t field_id = FieldMetadata_Name::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kString>
-        ::Append(*this, field_id, value);
-  }
-};
-
-} // Namespace.
-} // Namespace.
-} // Namespace.
-#endif  // Include guard.
-// gen_amalgamated begin header: gen/protos/perfetto/trace/track_event/chrome_latency_info.pbzero.h
-// Autogenerated by the ProtoZero compiler plugin. DO NOT EDIT.
-
-#ifndef PERFETTO_PROTOS_PROTOS_PERFETTO_TRACE_TRACK_EVENT_CHROME_LATENCY_INFO_PROTO_H_
-#define PERFETTO_PROTOS_PROTOS_PERFETTO_TRACE_TRACK_EVENT_CHROME_LATENCY_INFO_PROTO_H_
-
-#include <stddef.h>
-#include <stdint.h>
-
-// gen_amalgamated expanded: #include "perfetto/protozero/field_writer.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/message.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/packed_repeated_fields.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/proto_decoder.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/proto_utils.h"
-
-namespace perfetto {
-namespace protos {
-namespace pbzero {
-
-class ChromeLatencyInfo_ComponentInfo;
-enum ChromeLatencyInfo_LatencyComponentType : int32_t;
-enum ChromeLatencyInfo_Step : int32_t;
-
-enum ChromeLatencyInfo_Step : int32_t {
-  ChromeLatencyInfo_Step_STEP_UNSPECIFIED = 0,
-  ChromeLatencyInfo_Step_STEP_SEND_INPUT_EVENT_UI = 3,
-  ChromeLatencyInfo_Step_STEP_HANDLE_INPUT_EVENT_IMPL = 5,
-  ChromeLatencyInfo_Step_STEP_DID_HANDLE_INPUT_AND_OVERSCROLL = 8,
-  ChromeLatencyInfo_Step_STEP_HANDLE_INPUT_EVENT_MAIN = 4,
-  ChromeLatencyInfo_Step_STEP_MAIN_THREAD_SCROLL_UPDATE = 2,
-  ChromeLatencyInfo_Step_STEP_HANDLE_INPUT_EVENT_MAIN_COMMIT = 1,
-  ChromeLatencyInfo_Step_STEP_HANDLED_INPUT_EVENT_MAIN_OR_IMPL = 9,
-  ChromeLatencyInfo_Step_STEP_HANDLED_INPUT_EVENT_IMPL = 10,
-  ChromeLatencyInfo_Step_STEP_SWAP_BUFFERS = 6,
-  ChromeLatencyInfo_Step_STEP_DRAW_AND_SWAP = 7,
-  ChromeLatencyInfo_Step_STEP_FINISHED_SWAP_BUFFERS = 11,
-};
-
-const ChromeLatencyInfo_Step ChromeLatencyInfo_Step_MIN = ChromeLatencyInfo_Step_STEP_UNSPECIFIED;
-const ChromeLatencyInfo_Step ChromeLatencyInfo_Step_MAX = ChromeLatencyInfo_Step_STEP_FINISHED_SWAP_BUFFERS;
-
-enum ChromeLatencyInfo_LatencyComponentType : int32_t {
-  ChromeLatencyInfo_LatencyComponentType_COMPONENT_UNSPECIFIED = 0,
-  ChromeLatencyInfo_LatencyComponentType_COMPONENT_INPUT_EVENT_LATENCY_BEGIN_RWH = 1,
-  ChromeLatencyInfo_LatencyComponentType_COMPONENT_INPUT_EVENT_LATENCY_SCROLL_UPDATE_ORIGINAL = 2,
-  ChromeLatencyInfo_LatencyComponentType_COMPONENT_INPUT_EVENT_LATENCY_FIRST_SCROLL_UPDATE_ORIGINAL = 3,
-  ChromeLatencyInfo_LatencyComponentType_COMPONENT_INPUT_EVENT_LATENCY_ORIGINAL = 4,
-  ChromeLatencyInfo_LatencyComponentType_COMPONENT_INPUT_EVENT_LATENCY_UI = 5,
-  ChromeLatencyInfo_LatencyComponentType_COMPONENT_INPUT_EVENT_LATENCY_RENDERER_MAIN = 6,
-  ChromeLatencyInfo_LatencyComponentType_COMPONENT_INPUT_EVENT_LATENCY_RENDERING_SCHEDULED_MAIN = 7,
-  ChromeLatencyInfo_LatencyComponentType_COMPONENT_INPUT_EVENT_LATENCY_RENDERING_SCHEDULED_IMPL = 8,
-  ChromeLatencyInfo_LatencyComponentType_COMPONENT_INPUT_EVENT_LATENCY_SCROLL_UPDATE_LAST_EVENT = 9,
-  ChromeLatencyInfo_LatencyComponentType_COMPONENT_INPUT_EVENT_LATENCY_ACK_RWH = 10,
-  ChromeLatencyInfo_LatencyComponentType_COMPONENT_INPUT_EVENT_LATENCY_RENDERER_SWAP = 11,
-  ChromeLatencyInfo_LatencyComponentType_COMPONENT_DISPLAY_COMPOSITOR_RECEIVED_FRAME = 12,
-  ChromeLatencyInfo_LatencyComponentType_COMPONENT_INPUT_EVENT_GPU_SWAP_BUFFER = 13,
-  ChromeLatencyInfo_LatencyComponentType_COMPONENT_INPUT_EVENT_LATENCY_FRAME_SWAP = 14,
-};
-
-const ChromeLatencyInfo_LatencyComponentType ChromeLatencyInfo_LatencyComponentType_MIN = ChromeLatencyInfo_LatencyComponentType_COMPONENT_UNSPECIFIED;
-const ChromeLatencyInfo_LatencyComponentType ChromeLatencyInfo_LatencyComponentType_MAX = ChromeLatencyInfo_LatencyComponentType_COMPONENT_INPUT_EVENT_LATENCY_FRAME_SWAP;
-
-class ChromeLatencyInfo_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/6, /*HAS_NONPACKED_REPEATED_FIELDS=*/true> {
- public:
-  ChromeLatencyInfo_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit ChromeLatencyInfo_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit ChromeLatencyInfo_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_trace_id() const { return at<1>().valid(); }
-  int64_t trace_id() const { return at<1>().as_int64(); }
-  bool has_step() const { return at<2>().valid(); }
-  int32_t step() const { return at<2>().as_int32(); }
-  bool has_frame_tree_node_id() const { return at<3>().valid(); }
-  int32_t frame_tree_node_id() const { return at<3>().as_int32(); }
-  bool has_component_info() const { return at<4>().valid(); }
-  ::protozero::RepeatedFieldIterator<::protozero::ConstBytes> component_info() const { return GetRepeated<::protozero::ConstBytes>(4); }
-  bool has_is_coalesced() const { return at<5>().valid(); }
-  bool is_coalesced() const { return at<5>().as_bool(); }
-  bool has_gesture_scroll_id() const { return at<6>().valid(); }
-  int64_t gesture_scroll_id() const { return at<6>().as_int64(); }
-};
-
-class ChromeLatencyInfo : public ::protozero::Message {
- public:
-  using Decoder = ChromeLatencyInfo_Decoder;
-  enum : int32_t {
-    kTraceIdFieldNumber = 1,
-    kStepFieldNumber = 2,
-    kFrameTreeNodeIdFieldNumber = 3,
-    kComponentInfoFieldNumber = 4,
-    kIsCoalescedFieldNumber = 5,
-    kGestureScrollIdFieldNumber = 6,
-  };
-  using ComponentInfo = ::perfetto::protos::pbzero::ChromeLatencyInfo_ComponentInfo;
-  using Step = ::perfetto::protos::pbzero::ChromeLatencyInfo_Step;
-  using LatencyComponentType = ::perfetto::protos::pbzero::ChromeLatencyInfo_LatencyComponentType;
-  static const Step STEP_UNSPECIFIED = ChromeLatencyInfo_Step_STEP_UNSPECIFIED;
-  static const Step STEP_SEND_INPUT_EVENT_UI = ChromeLatencyInfo_Step_STEP_SEND_INPUT_EVENT_UI;
-  static const Step STEP_HANDLE_INPUT_EVENT_IMPL = ChromeLatencyInfo_Step_STEP_HANDLE_INPUT_EVENT_IMPL;
-  static const Step STEP_DID_HANDLE_INPUT_AND_OVERSCROLL = ChromeLatencyInfo_Step_STEP_DID_HANDLE_INPUT_AND_OVERSCROLL;
-  static const Step STEP_HANDLE_INPUT_EVENT_MAIN = ChromeLatencyInfo_Step_STEP_HANDLE_INPUT_EVENT_MAIN;
-  static const Step STEP_MAIN_THREAD_SCROLL_UPDATE = ChromeLatencyInfo_Step_STEP_MAIN_THREAD_SCROLL_UPDATE;
-  static const Step STEP_HANDLE_INPUT_EVENT_MAIN_COMMIT = ChromeLatencyInfo_Step_STEP_HANDLE_INPUT_EVENT_MAIN_COMMIT;
-  static const Step STEP_HANDLED_INPUT_EVENT_MAIN_OR_IMPL = ChromeLatencyInfo_Step_STEP_HANDLED_INPUT_EVENT_MAIN_OR_IMPL;
-  static const Step STEP_HANDLED_INPUT_EVENT_IMPL = ChromeLatencyInfo_Step_STEP_HANDLED_INPUT_EVENT_IMPL;
-  static const Step STEP_SWAP_BUFFERS = ChromeLatencyInfo_Step_STEP_SWAP_BUFFERS;
-  static const Step STEP_DRAW_AND_SWAP = ChromeLatencyInfo_Step_STEP_DRAW_AND_SWAP;
-  static const Step STEP_FINISHED_SWAP_BUFFERS = ChromeLatencyInfo_Step_STEP_FINISHED_SWAP_BUFFERS;
-  static const LatencyComponentType COMPONENT_UNSPECIFIED = ChromeLatencyInfo_LatencyComponentType_COMPONENT_UNSPECIFIED;
-  static const LatencyComponentType COMPONENT_INPUT_EVENT_LATENCY_BEGIN_RWH = ChromeLatencyInfo_LatencyComponentType_COMPONENT_INPUT_EVENT_LATENCY_BEGIN_RWH;
-  static const LatencyComponentType COMPONENT_INPUT_EVENT_LATENCY_SCROLL_UPDATE_ORIGINAL = ChromeLatencyInfo_LatencyComponentType_COMPONENT_INPUT_EVENT_LATENCY_SCROLL_UPDATE_ORIGINAL;
-  static const LatencyComponentType COMPONENT_INPUT_EVENT_LATENCY_FIRST_SCROLL_UPDATE_ORIGINAL = ChromeLatencyInfo_LatencyComponentType_COMPONENT_INPUT_EVENT_LATENCY_FIRST_SCROLL_UPDATE_ORIGINAL;
-  static const LatencyComponentType COMPONENT_INPUT_EVENT_LATENCY_ORIGINAL = ChromeLatencyInfo_LatencyComponentType_COMPONENT_INPUT_EVENT_LATENCY_ORIGINAL;
-  static const LatencyComponentType COMPONENT_INPUT_EVENT_LATENCY_UI = ChromeLatencyInfo_LatencyComponentType_COMPONENT_INPUT_EVENT_LATENCY_UI;
-  static const LatencyComponentType COMPONENT_INPUT_EVENT_LATENCY_RENDERER_MAIN = ChromeLatencyInfo_LatencyComponentType_COMPONENT_INPUT_EVENT_LATENCY_RENDERER_MAIN;
-  static const LatencyComponentType COMPONENT_INPUT_EVENT_LATENCY_RENDERING_SCHEDULED_MAIN = ChromeLatencyInfo_LatencyComponentType_COMPONENT_INPUT_EVENT_LATENCY_RENDERING_SCHEDULED_MAIN;
-  static const LatencyComponentType COMPONENT_INPUT_EVENT_LATENCY_RENDERING_SCHEDULED_IMPL = ChromeLatencyInfo_LatencyComponentType_COMPONENT_INPUT_EVENT_LATENCY_RENDERING_SCHEDULED_IMPL;
-  static const LatencyComponentType COMPONENT_INPUT_EVENT_LATENCY_SCROLL_UPDATE_LAST_EVENT = ChromeLatencyInfo_LatencyComponentType_COMPONENT_INPUT_EVENT_LATENCY_SCROLL_UPDATE_LAST_EVENT;
-  static const LatencyComponentType COMPONENT_INPUT_EVENT_LATENCY_ACK_RWH = ChromeLatencyInfo_LatencyComponentType_COMPONENT_INPUT_EVENT_LATENCY_ACK_RWH;
-  static const LatencyComponentType COMPONENT_INPUT_EVENT_LATENCY_RENDERER_SWAP = ChromeLatencyInfo_LatencyComponentType_COMPONENT_INPUT_EVENT_LATENCY_RENDERER_SWAP;
-  static const LatencyComponentType COMPONENT_DISPLAY_COMPOSITOR_RECEIVED_FRAME = ChromeLatencyInfo_LatencyComponentType_COMPONENT_DISPLAY_COMPOSITOR_RECEIVED_FRAME;
-  static const LatencyComponentType COMPONENT_INPUT_EVENT_GPU_SWAP_BUFFER = ChromeLatencyInfo_LatencyComponentType_COMPONENT_INPUT_EVENT_GPU_SWAP_BUFFER;
-  static const LatencyComponentType COMPONENT_INPUT_EVENT_LATENCY_FRAME_SWAP = ChromeLatencyInfo_LatencyComponentType_COMPONENT_INPUT_EVENT_LATENCY_FRAME_SWAP;
-
-  using FieldMetadata_TraceId =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt64,
-      int64_t,
-      ChromeLatencyInfo>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_TraceId kTraceId() { return {}; }
-  void set_trace_id(int64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_TraceId::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Step =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kEnum,
-      ::perfetto::protos::pbzero::ChromeLatencyInfo_Step,
-      ChromeLatencyInfo>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Step kStep() { return {}; }
-  void set_step(::perfetto::protos::pbzero::ChromeLatencyInfo_Step value) {
-    static constexpr uint32_t field_id = FieldMetadata_Step::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kEnum>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_FrameTreeNodeId =
-    ::protozero::proto_utils::FieldMetadata<
-      3,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt32,
-      int32_t,
-      ChromeLatencyInfo>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_FrameTreeNodeId kFrameTreeNodeId() { return {}; }
-  void set_frame_tree_node_id(int32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_FrameTreeNodeId::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_ComponentInfo =
-    ::protozero::proto_utils::FieldMetadata<
-      4,
-      ::protozero::proto_utils::RepetitionType::kRepeatedNotPacked,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      ChromeLatencyInfo_ComponentInfo,
-      ChromeLatencyInfo>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_ComponentInfo kComponentInfo() { return {}; }
-  template <typename T = ChromeLatencyInfo_ComponentInfo> T* add_component_info() {
-    return BeginNestedMessage<T>(4);
-  }
-
-
-  using FieldMetadata_IsCoalesced =
-    ::protozero::proto_utils::FieldMetadata<
-      5,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kBool,
-      bool,
-      ChromeLatencyInfo>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_IsCoalesced kIsCoalesced() { return {}; }
-  void set_is_coalesced(bool value) {
-    static constexpr uint32_t field_id = FieldMetadata_IsCoalesced::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kBool>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_GestureScrollId =
-    ::protozero::proto_utils::FieldMetadata<
-      6,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt64,
-      int64_t,
-      ChromeLatencyInfo>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_GestureScrollId kGestureScrollId() { return {}; }
-  void set_gesture_scroll_id(int64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_GestureScrollId::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt64>
-        ::Append(*this, field_id, value);
-  }
-};
-
-class ChromeLatencyInfo_ComponentInfo_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/2, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  ChromeLatencyInfo_ComponentInfo_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit ChromeLatencyInfo_ComponentInfo_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit ChromeLatencyInfo_ComponentInfo_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_component_type() const { return at<1>().valid(); }
-  int32_t component_type() const { return at<1>().as_int32(); }
-  bool has_time_us() const { return at<2>().valid(); }
-  uint64_t time_us() const { return at<2>().as_uint64(); }
-};
-
-class ChromeLatencyInfo_ComponentInfo : public ::protozero::Message {
- public:
-  using Decoder = ChromeLatencyInfo_ComponentInfo_Decoder;
-  enum : int32_t {
-    kComponentTypeFieldNumber = 1,
-    kTimeUsFieldNumber = 2,
-  };
-
-  using FieldMetadata_ComponentType =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kEnum,
-      ::perfetto::protos::pbzero::ChromeLatencyInfo_LatencyComponentType,
-      ChromeLatencyInfo_ComponentInfo>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_ComponentType kComponentType() { return {}; }
-  void set_component_type(::perfetto::protos::pbzero::ChromeLatencyInfo_LatencyComponentType value) {
-    static constexpr uint32_t field_id = FieldMetadata_ComponentType::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kEnum>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_TimeUs =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      ChromeLatencyInfo_ComponentInfo>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_TimeUs kTimeUs() { return {}; }
-  void set_time_us(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_TimeUs::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-};
-
-} // Namespace.
-} // Namespace.
-} // Namespace.
-#endif  // Include guard.
-// gen_amalgamated begin header: gen/protos/perfetto/trace/track_event/chrome_legacy_ipc.pbzero.h
-// Autogenerated by the ProtoZero compiler plugin. DO NOT EDIT.
-
-#ifndef PERFETTO_PROTOS_PROTOS_PERFETTO_TRACE_TRACK_EVENT_CHROME_LEGACY_IPC_PROTO_H_
-#define PERFETTO_PROTOS_PROTOS_PERFETTO_TRACE_TRACK_EVENT_CHROME_LEGACY_IPC_PROTO_H_
-
-#include <stddef.h>
-#include <stdint.h>
-
-// gen_amalgamated expanded: #include "perfetto/protozero/field_writer.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/message.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/packed_repeated_fields.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/proto_decoder.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/proto_utils.h"
-
-namespace perfetto {
-namespace protos {
-namespace pbzero {
-
-enum ChromeLegacyIpc_MessageClass : int32_t;
-
-enum ChromeLegacyIpc_MessageClass : int32_t {
-  ChromeLegacyIpc_MessageClass_CLASS_UNSPECIFIED = 0,
-  ChromeLegacyIpc_MessageClass_CLASS_AUTOMATION = 1,
-  ChromeLegacyIpc_MessageClass_CLASS_FRAME = 2,
-  ChromeLegacyIpc_MessageClass_CLASS_PAGE = 3,
-  ChromeLegacyIpc_MessageClass_CLASS_VIEW = 4,
-  ChromeLegacyIpc_MessageClass_CLASS_WIDGET = 5,
-  ChromeLegacyIpc_MessageClass_CLASS_INPUT = 6,
-  ChromeLegacyIpc_MessageClass_CLASS_TEST = 7,
-  ChromeLegacyIpc_MessageClass_CLASS_WORKER = 8,
-  ChromeLegacyIpc_MessageClass_CLASS_NACL = 9,
-  ChromeLegacyIpc_MessageClass_CLASS_GPU_CHANNEL = 10,
-  ChromeLegacyIpc_MessageClass_CLASS_MEDIA = 11,
-  ChromeLegacyIpc_MessageClass_CLASS_PPAPI = 12,
-  ChromeLegacyIpc_MessageClass_CLASS_CHROME = 13,
-  ChromeLegacyIpc_MessageClass_CLASS_DRAG = 14,
-  ChromeLegacyIpc_MessageClass_CLASS_PRINT = 15,
-  ChromeLegacyIpc_MessageClass_CLASS_EXTENSION = 16,
-  ChromeLegacyIpc_MessageClass_CLASS_TEXT_INPUT_CLIENT = 17,
-  ChromeLegacyIpc_MessageClass_CLASS_BLINK_TEST = 18,
-  ChromeLegacyIpc_MessageClass_CLASS_ACCESSIBILITY = 19,
-  ChromeLegacyIpc_MessageClass_CLASS_PRERENDER = 20,
-  ChromeLegacyIpc_MessageClass_CLASS_CHROMOTING = 21,
-  ChromeLegacyIpc_MessageClass_CLASS_BROWSER_PLUGIN = 22,
-  ChromeLegacyIpc_MessageClass_CLASS_ANDROID_WEB_VIEW = 23,
-  ChromeLegacyIpc_MessageClass_CLASS_NACL_HOST = 24,
-  ChromeLegacyIpc_MessageClass_CLASS_ENCRYPTED_MEDIA = 25,
-  ChromeLegacyIpc_MessageClass_CLASS_CAST = 26,
-  ChromeLegacyIpc_MessageClass_CLASS_GIN_JAVA_BRIDGE = 27,
-  ChromeLegacyIpc_MessageClass_CLASS_CHROME_UTILITY_PRINTING = 28,
-  ChromeLegacyIpc_MessageClass_CLASS_OZONE_GPU = 29,
-  ChromeLegacyIpc_MessageClass_CLASS_WEB_TEST = 30,
-  ChromeLegacyIpc_MessageClass_CLASS_NETWORK_HINTS = 31,
-  ChromeLegacyIpc_MessageClass_CLASS_EXTENSIONS_GUEST_VIEW = 32,
-  ChromeLegacyIpc_MessageClass_CLASS_GUEST_VIEW = 33,
-  ChromeLegacyIpc_MessageClass_CLASS_MEDIA_PLAYER_DELEGATE = 34,
-  ChromeLegacyIpc_MessageClass_CLASS_EXTENSION_WORKER = 35,
-  ChromeLegacyIpc_MessageClass_CLASS_SUBRESOURCE_FILTER = 36,
-  ChromeLegacyIpc_MessageClass_CLASS_UNFREEZABLE_FRAME = 37,
-};
-
-const ChromeLegacyIpc_MessageClass ChromeLegacyIpc_MessageClass_MIN = ChromeLegacyIpc_MessageClass_CLASS_UNSPECIFIED;
-const ChromeLegacyIpc_MessageClass ChromeLegacyIpc_MessageClass_MAX = ChromeLegacyIpc_MessageClass_CLASS_UNFREEZABLE_FRAME;
-
-class ChromeLegacyIpc_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/2, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  ChromeLegacyIpc_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit ChromeLegacyIpc_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit ChromeLegacyIpc_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_message_class() const { return at<1>().valid(); }
-  int32_t message_class() const { return at<1>().as_int32(); }
-  bool has_message_line() const { return at<2>().valid(); }
-  uint32_t message_line() const { return at<2>().as_uint32(); }
-};
-
-class ChromeLegacyIpc : public ::protozero::Message {
- public:
-  using Decoder = ChromeLegacyIpc_Decoder;
-  enum : int32_t {
-    kMessageClassFieldNumber = 1,
-    kMessageLineFieldNumber = 2,
-  };
-  using MessageClass = ::perfetto::protos::pbzero::ChromeLegacyIpc_MessageClass;
-  static const MessageClass CLASS_UNSPECIFIED = ChromeLegacyIpc_MessageClass_CLASS_UNSPECIFIED;
-  static const MessageClass CLASS_AUTOMATION = ChromeLegacyIpc_MessageClass_CLASS_AUTOMATION;
-  static const MessageClass CLASS_FRAME = ChromeLegacyIpc_MessageClass_CLASS_FRAME;
-  static const MessageClass CLASS_PAGE = ChromeLegacyIpc_MessageClass_CLASS_PAGE;
-  static const MessageClass CLASS_VIEW = ChromeLegacyIpc_MessageClass_CLASS_VIEW;
-  static const MessageClass CLASS_WIDGET = ChromeLegacyIpc_MessageClass_CLASS_WIDGET;
-  static const MessageClass CLASS_INPUT = ChromeLegacyIpc_MessageClass_CLASS_INPUT;
-  static const MessageClass CLASS_TEST = ChromeLegacyIpc_MessageClass_CLASS_TEST;
-  static const MessageClass CLASS_WORKER = ChromeLegacyIpc_MessageClass_CLASS_WORKER;
-  static const MessageClass CLASS_NACL = ChromeLegacyIpc_MessageClass_CLASS_NACL;
-  static const MessageClass CLASS_GPU_CHANNEL = ChromeLegacyIpc_MessageClass_CLASS_GPU_CHANNEL;
-  static const MessageClass CLASS_MEDIA = ChromeLegacyIpc_MessageClass_CLASS_MEDIA;
-  static const MessageClass CLASS_PPAPI = ChromeLegacyIpc_MessageClass_CLASS_PPAPI;
-  static const MessageClass CLASS_CHROME = ChromeLegacyIpc_MessageClass_CLASS_CHROME;
-  static const MessageClass CLASS_DRAG = ChromeLegacyIpc_MessageClass_CLASS_DRAG;
-  static const MessageClass CLASS_PRINT = ChromeLegacyIpc_MessageClass_CLASS_PRINT;
-  static const MessageClass CLASS_EXTENSION = ChromeLegacyIpc_MessageClass_CLASS_EXTENSION;
-  static const MessageClass CLASS_TEXT_INPUT_CLIENT = ChromeLegacyIpc_MessageClass_CLASS_TEXT_INPUT_CLIENT;
-  static const MessageClass CLASS_BLINK_TEST = ChromeLegacyIpc_MessageClass_CLASS_BLINK_TEST;
-  static const MessageClass CLASS_ACCESSIBILITY = ChromeLegacyIpc_MessageClass_CLASS_ACCESSIBILITY;
-  static const MessageClass CLASS_PRERENDER = ChromeLegacyIpc_MessageClass_CLASS_PRERENDER;
-  static const MessageClass CLASS_CHROMOTING = ChromeLegacyIpc_MessageClass_CLASS_CHROMOTING;
-  static const MessageClass CLASS_BROWSER_PLUGIN = ChromeLegacyIpc_MessageClass_CLASS_BROWSER_PLUGIN;
-  static const MessageClass CLASS_ANDROID_WEB_VIEW = ChromeLegacyIpc_MessageClass_CLASS_ANDROID_WEB_VIEW;
-  static const MessageClass CLASS_NACL_HOST = ChromeLegacyIpc_MessageClass_CLASS_NACL_HOST;
-  static const MessageClass CLASS_ENCRYPTED_MEDIA = ChromeLegacyIpc_MessageClass_CLASS_ENCRYPTED_MEDIA;
-  static const MessageClass CLASS_CAST = ChromeLegacyIpc_MessageClass_CLASS_CAST;
-  static const MessageClass CLASS_GIN_JAVA_BRIDGE = ChromeLegacyIpc_MessageClass_CLASS_GIN_JAVA_BRIDGE;
-  static const MessageClass CLASS_CHROME_UTILITY_PRINTING = ChromeLegacyIpc_MessageClass_CLASS_CHROME_UTILITY_PRINTING;
-  static const MessageClass CLASS_OZONE_GPU = ChromeLegacyIpc_MessageClass_CLASS_OZONE_GPU;
-  static const MessageClass CLASS_WEB_TEST = ChromeLegacyIpc_MessageClass_CLASS_WEB_TEST;
-  static const MessageClass CLASS_NETWORK_HINTS = ChromeLegacyIpc_MessageClass_CLASS_NETWORK_HINTS;
-  static const MessageClass CLASS_EXTENSIONS_GUEST_VIEW = ChromeLegacyIpc_MessageClass_CLASS_EXTENSIONS_GUEST_VIEW;
-  static const MessageClass CLASS_GUEST_VIEW = ChromeLegacyIpc_MessageClass_CLASS_GUEST_VIEW;
-  static const MessageClass CLASS_MEDIA_PLAYER_DELEGATE = ChromeLegacyIpc_MessageClass_CLASS_MEDIA_PLAYER_DELEGATE;
-  static const MessageClass CLASS_EXTENSION_WORKER = ChromeLegacyIpc_MessageClass_CLASS_EXTENSION_WORKER;
-  static const MessageClass CLASS_SUBRESOURCE_FILTER = ChromeLegacyIpc_MessageClass_CLASS_SUBRESOURCE_FILTER;
-  static const MessageClass CLASS_UNFREEZABLE_FRAME = ChromeLegacyIpc_MessageClass_CLASS_UNFREEZABLE_FRAME;
-
-  using FieldMetadata_MessageClass =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kEnum,
-      ::perfetto::protos::pbzero::ChromeLegacyIpc_MessageClass,
-      ChromeLegacyIpc>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_MessageClass kMessageClass() { return {}; }
-  void set_message_class(::perfetto::protos::pbzero::ChromeLegacyIpc_MessageClass value) {
-    static constexpr uint32_t field_id = FieldMetadata_MessageClass::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kEnum>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_MessageLine =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      ChromeLegacyIpc>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_MessageLine kMessageLine() { return {}; }
-  void set_message_line(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_MessageLine::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-};
-
-} // Namespace.
-} // Namespace.
-} // Namespace.
-#endif  // Include guard.
-// gen_amalgamated begin header: gen/protos/perfetto/trace/track_event/chrome_message_pump.pbzero.h
-// Autogenerated by the ProtoZero compiler plugin. DO NOT EDIT.
-
-#ifndef PERFETTO_PROTOS_PROTOS_PERFETTO_TRACE_TRACK_EVENT_CHROME_MESSAGE_PUMP_PROTO_H_
-#define PERFETTO_PROTOS_PROTOS_PERFETTO_TRACE_TRACK_EVENT_CHROME_MESSAGE_PUMP_PROTO_H_
-
-#include <stddef.h>
-#include <stdint.h>
-
-// gen_amalgamated expanded: #include "perfetto/protozero/field_writer.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/message.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/packed_repeated_fields.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/proto_decoder.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/proto_utils.h"
-
-namespace perfetto {
-namespace protos {
-namespace pbzero {
-
-
-class ChromeMessagePump_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/2, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  ChromeMessagePump_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit ChromeMessagePump_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit ChromeMessagePump_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_sent_messages_in_queue() const { return at<1>().valid(); }
-  bool sent_messages_in_queue() const { return at<1>().as_bool(); }
-  bool has_io_handler_location_iid() const { return at<2>().valid(); }
-  uint64_t io_handler_location_iid() const { return at<2>().as_uint64(); }
-};
-
-class ChromeMessagePump : public ::protozero::Message {
- public:
-  using Decoder = ChromeMessagePump_Decoder;
-  enum : int32_t {
-    kSentMessagesInQueueFieldNumber = 1,
-    kIoHandlerLocationIidFieldNumber = 2,
-  };
-
-  using FieldMetadata_SentMessagesInQueue =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kBool,
-      bool,
-      ChromeMessagePump>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_SentMessagesInQueue kSentMessagesInQueue() { return {}; }
-  void set_sent_messages_in_queue(bool value) {
-    static constexpr uint32_t field_id = FieldMetadata_SentMessagesInQueue::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kBool>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_IoHandlerLocationIid =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      ChromeMessagePump>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_IoHandlerLocationIid kIoHandlerLocationIid() { return {}; }
-  void set_io_handler_location_iid(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_IoHandlerLocationIid::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-};
-
-} // Namespace.
-} // Namespace.
-} // Namespace.
-#endif  // Include guard.
-// gen_amalgamated begin header: gen/protos/perfetto/trace/track_event/chrome_mojo_event_info.pbzero.h
-// Autogenerated by the ProtoZero compiler plugin. DO NOT EDIT.
-
-#ifndef PERFETTO_PROTOS_PROTOS_PERFETTO_TRACE_TRACK_EVENT_CHROME_MOJO_EVENT_INFO_PROTO_H_
-#define PERFETTO_PROTOS_PROTOS_PERFETTO_TRACE_TRACK_EVENT_CHROME_MOJO_EVENT_INFO_PROTO_H_
-
-#include <stddef.h>
-#include <stdint.h>
-
-// gen_amalgamated expanded: #include "perfetto/protozero/field_writer.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/message.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/packed_repeated_fields.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/proto_decoder.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/proto_utils.h"
-
-namespace perfetto {
-namespace protos {
-namespace pbzero {
-
-
-class ChromeMojoEventInfo_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/3, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  ChromeMojoEventInfo_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit ChromeMojoEventInfo_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit ChromeMojoEventInfo_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_watcher_notify_interface_tag() const { return at<1>().valid(); }
-  ::protozero::ConstChars watcher_notify_interface_tag() const { return at<1>().as_string(); }
-  bool has_ipc_hash() const { return at<2>().valid(); }
-  uint32_t ipc_hash() const { return at<2>().as_uint32(); }
-  bool has_mojo_interface_tag() const { return at<3>().valid(); }
-  ::protozero::ConstChars mojo_interface_tag() const { return at<3>().as_string(); }
-};
-
-class ChromeMojoEventInfo : public ::protozero::Message {
- public:
-  using Decoder = ChromeMojoEventInfo_Decoder;
-  enum : int32_t {
-    kWatcherNotifyInterfaceTagFieldNumber = 1,
-    kIpcHashFieldNumber = 2,
-    kMojoInterfaceTagFieldNumber = 3,
-  };
-
-  using FieldMetadata_WatcherNotifyInterfaceTag =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kString,
-      std::string,
-      ChromeMojoEventInfo>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_WatcherNotifyInterfaceTag kWatcherNotifyInterfaceTag() { return {}; }
-  void set_watcher_notify_interface_tag(const char* data, size_t size) {
-    AppendBytes(FieldMetadata_WatcherNotifyInterfaceTag::kFieldId, data, size);
-  }
-  void set_watcher_notify_interface_tag(std::string value) {
-    static constexpr uint32_t field_id = FieldMetadata_WatcherNotifyInterfaceTag::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kString>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_IpcHash =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      ChromeMojoEventInfo>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_IpcHash kIpcHash() { return {}; }
-  void set_ipc_hash(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_IpcHash::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_MojoInterfaceTag =
-    ::protozero::proto_utils::FieldMetadata<
-      3,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kString,
-      std::string,
-      ChromeMojoEventInfo>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_MojoInterfaceTag kMojoInterfaceTag() { return {}; }
-  void set_mojo_interface_tag(const char* data, size_t size) {
-    AppendBytes(FieldMetadata_MojoInterfaceTag::kFieldId, data, size);
-  }
-  void set_mojo_interface_tag(std::string value) {
-    static constexpr uint32_t field_id = FieldMetadata_MojoInterfaceTag::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kString>
-        ::Append(*this, field_id, value);
-  }
-};
-
-} // Namespace.
-} // Namespace.
-} // Namespace.
-#endif  // Include guard.
-// gen_amalgamated begin header: gen/protos/perfetto/trace/track_event/chrome_process_descriptor.pbzero.h
-// Autogenerated by the ProtoZero compiler plugin. DO NOT EDIT.
-
-#ifndef PERFETTO_PROTOS_PROTOS_PERFETTO_TRACE_TRACK_EVENT_CHROME_PROCESS_DESCRIPTOR_PROTO_H_
-#define PERFETTO_PROTOS_PROTOS_PERFETTO_TRACE_TRACK_EVENT_CHROME_PROCESS_DESCRIPTOR_PROTO_H_
-
-#include <stddef.h>
-#include <stdint.h>
-
-// gen_amalgamated expanded: #include "perfetto/protozero/field_writer.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/message.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/packed_repeated_fields.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/proto_decoder.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/proto_utils.h"
-
-namespace perfetto {
-namespace protos {
-namespace pbzero {
-
-enum ChromeProcessDescriptor_ProcessType : int32_t;
-
-enum ChromeProcessDescriptor_ProcessType : int32_t {
-  ChromeProcessDescriptor_ProcessType_PROCESS_UNSPECIFIED = 0,
-  ChromeProcessDescriptor_ProcessType_PROCESS_BROWSER = 1,
-  ChromeProcessDescriptor_ProcessType_PROCESS_RENDERER = 2,
-  ChromeProcessDescriptor_ProcessType_PROCESS_UTILITY = 3,
-  ChromeProcessDescriptor_ProcessType_PROCESS_ZYGOTE = 4,
-  ChromeProcessDescriptor_ProcessType_PROCESS_SANDBOX_HELPER = 5,
-  ChromeProcessDescriptor_ProcessType_PROCESS_GPU = 6,
-  ChromeProcessDescriptor_ProcessType_PROCESS_PPAPI_PLUGIN = 7,
-  ChromeProcessDescriptor_ProcessType_PROCESS_PPAPI_BROKER = 8,
-  ChromeProcessDescriptor_ProcessType_PROCESS_SERVICE_NETWORK = 9,
-  ChromeProcessDescriptor_ProcessType_PROCESS_SERVICE_TRACING = 10,
-  ChromeProcessDescriptor_ProcessType_PROCESS_SERVICE_STORAGE = 11,
-  ChromeProcessDescriptor_ProcessType_PROCESS_SERVICE_AUDIO = 12,
-  ChromeProcessDescriptor_ProcessType_PROCESS_SERVICE_DATA_DECODER = 13,
-  ChromeProcessDescriptor_ProcessType_PROCESS_SERVICE_UTIL_WIN = 14,
-  ChromeProcessDescriptor_ProcessType_PROCESS_SERVICE_PROXY_RESOLVER = 15,
-  ChromeProcessDescriptor_ProcessType_PROCESS_SERVICE_CDM = 16,
-  ChromeProcessDescriptor_ProcessType_PROCESS_SERVICE_VIDEO_CAPTURE = 17,
-  ChromeProcessDescriptor_ProcessType_PROCESS_SERVICE_UNZIPPER = 18,
-  ChromeProcessDescriptor_ProcessType_PROCESS_SERVICE_MIRRORING = 19,
-  ChromeProcessDescriptor_ProcessType_PROCESS_SERVICE_FILEPATCHER = 20,
-  ChromeProcessDescriptor_ProcessType_PROCESS_SERVICE_TTS = 21,
-  ChromeProcessDescriptor_ProcessType_PROCESS_SERVICE_PRINTING = 22,
-  ChromeProcessDescriptor_ProcessType_PROCESS_SERVICE_QUARANTINE = 23,
-  ChromeProcessDescriptor_ProcessType_PROCESS_SERVICE_CROS_LOCALSEARCH = 24,
-  ChromeProcessDescriptor_ProcessType_PROCESS_SERVICE_CROS_ASSISTANT_AUDIO_DECODER = 25,
-  ChromeProcessDescriptor_ProcessType_PROCESS_SERVICE_FILEUTIL = 26,
-  ChromeProcessDescriptor_ProcessType_PROCESS_SERVICE_PRINTCOMPOSITOR = 27,
-  ChromeProcessDescriptor_ProcessType_PROCESS_SERVICE_PAINTPREVIEW = 28,
-  ChromeProcessDescriptor_ProcessType_PROCESS_SERVICE_SPEECHRECOGNITION = 29,
-  ChromeProcessDescriptor_ProcessType_PROCESS_SERVICE_XRDEVICE = 30,
-  ChromeProcessDescriptor_ProcessType_PROCESS_SERVICE_READICON = 31,
-  ChromeProcessDescriptor_ProcessType_PROCESS_SERVICE_LANGUAGEDETECTION = 32,
-  ChromeProcessDescriptor_ProcessType_PROCESS_SERVICE_SHARING = 33,
-  ChromeProcessDescriptor_ProcessType_PROCESS_SERVICE_MEDIAPARSER = 34,
-  ChromeProcessDescriptor_ProcessType_PROCESS_SERVICE_QRCODEGENERATOR = 35,
-  ChromeProcessDescriptor_ProcessType_PROCESS_SERVICE_PROFILEIMPORT = 36,
-  ChromeProcessDescriptor_ProcessType_PROCESS_SERVICE_IME = 37,
-  ChromeProcessDescriptor_ProcessType_PROCESS_SERVICE_RECORDING = 38,
-  ChromeProcessDescriptor_ProcessType_PROCESS_SERVICE_SHAPEDETECTION = 39,
-};
-
-const ChromeProcessDescriptor_ProcessType ChromeProcessDescriptor_ProcessType_MIN = ChromeProcessDescriptor_ProcessType_PROCESS_UNSPECIFIED;
-const ChromeProcessDescriptor_ProcessType ChromeProcessDescriptor_ProcessType_MAX = ChromeProcessDescriptor_ProcessType_PROCESS_SERVICE_SHAPEDETECTION;
-
-class ChromeProcessDescriptor_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/5, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  ChromeProcessDescriptor_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit ChromeProcessDescriptor_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit ChromeProcessDescriptor_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_process_type() const { return at<1>().valid(); }
-  int32_t process_type() const { return at<1>().as_int32(); }
-  bool has_process_priority() const { return at<2>().valid(); }
-  int32_t process_priority() const { return at<2>().as_int32(); }
-  bool has_legacy_sort_index() const { return at<3>().valid(); }
-  int32_t legacy_sort_index() const { return at<3>().as_int32(); }
-  bool has_host_app_package_name() const { return at<4>().valid(); }
-  ::protozero::ConstChars host_app_package_name() const { return at<4>().as_string(); }
-  bool has_crash_trace_id() const { return at<5>().valid(); }
-  uint64_t crash_trace_id() const { return at<5>().as_uint64(); }
-};
-
-class ChromeProcessDescriptor : public ::protozero::Message {
- public:
-  using Decoder = ChromeProcessDescriptor_Decoder;
-  enum : int32_t {
-    kProcessTypeFieldNumber = 1,
-    kProcessPriorityFieldNumber = 2,
-    kLegacySortIndexFieldNumber = 3,
-    kHostAppPackageNameFieldNumber = 4,
-    kCrashTraceIdFieldNumber = 5,
-  };
-  using ProcessType = ::perfetto::protos::pbzero::ChromeProcessDescriptor_ProcessType;
-  static const ProcessType PROCESS_UNSPECIFIED = ChromeProcessDescriptor_ProcessType_PROCESS_UNSPECIFIED;
-  static const ProcessType PROCESS_BROWSER = ChromeProcessDescriptor_ProcessType_PROCESS_BROWSER;
-  static const ProcessType PROCESS_RENDERER = ChromeProcessDescriptor_ProcessType_PROCESS_RENDERER;
-  static const ProcessType PROCESS_UTILITY = ChromeProcessDescriptor_ProcessType_PROCESS_UTILITY;
-  static const ProcessType PROCESS_ZYGOTE = ChromeProcessDescriptor_ProcessType_PROCESS_ZYGOTE;
-  static const ProcessType PROCESS_SANDBOX_HELPER = ChromeProcessDescriptor_ProcessType_PROCESS_SANDBOX_HELPER;
-  static const ProcessType PROCESS_GPU = ChromeProcessDescriptor_ProcessType_PROCESS_GPU;
-  static const ProcessType PROCESS_PPAPI_PLUGIN = ChromeProcessDescriptor_ProcessType_PROCESS_PPAPI_PLUGIN;
-  static const ProcessType PROCESS_PPAPI_BROKER = ChromeProcessDescriptor_ProcessType_PROCESS_PPAPI_BROKER;
-  static const ProcessType PROCESS_SERVICE_NETWORK = ChromeProcessDescriptor_ProcessType_PROCESS_SERVICE_NETWORK;
-  static const ProcessType PROCESS_SERVICE_TRACING = ChromeProcessDescriptor_ProcessType_PROCESS_SERVICE_TRACING;
-  static const ProcessType PROCESS_SERVICE_STORAGE = ChromeProcessDescriptor_ProcessType_PROCESS_SERVICE_STORAGE;
-  static const ProcessType PROCESS_SERVICE_AUDIO = ChromeProcessDescriptor_ProcessType_PROCESS_SERVICE_AUDIO;
-  static const ProcessType PROCESS_SERVICE_DATA_DECODER = ChromeProcessDescriptor_ProcessType_PROCESS_SERVICE_DATA_DECODER;
-  static const ProcessType PROCESS_SERVICE_UTIL_WIN = ChromeProcessDescriptor_ProcessType_PROCESS_SERVICE_UTIL_WIN;
-  static const ProcessType PROCESS_SERVICE_PROXY_RESOLVER = ChromeProcessDescriptor_ProcessType_PROCESS_SERVICE_PROXY_RESOLVER;
-  static const ProcessType PROCESS_SERVICE_CDM = ChromeProcessDescriptor_ProcessType_PROCESS_SERVICE_CDM;
-  static const ProcessType PROCESS_SERVICE_VIDEO_CAPTURE = ChromeProcessDescriptor_ProcessType_PROCESS_SERVICE_VIDEO_CAPTURE;
-  static const ProcessType PROCESS_SERVICE_UNZIPPER = ChromeProcessDescriptor_ProcessType_PROCESS_SERVICE_UNZIPPER;
-  static const ProcessType PROCESS_SERVICE_MIRRORING = ChromeProcessDescriptor_ProcessType_PROCESS_SERVICE_MIRRORING;
-  static const ProcessType PROCESS_SERVICE_FILEPATCHER = ChromeProcessDescriptor_ProcessType_PROCESS_SERVICE_FILEPATCHER;
-  static const ProcessType PROCESS_SERVICE_TTS = ChromeProcessDescriptor_ProcessType_PROCESS_SERVICE_TTS;
-  static const ProcessType PROCESS_SERVICE_PRINTING = ChromeProcessDescriptor_ProcessType_PROCESS_SERVICE_PRINTING;
-  static const ProcessType PROCESS_SERVICE_QUARANTINE = ChromeProcessDescriptor_ProcessType_PROCESS_SERVICE_QUARANTINE;
-  static const ProcessType PROCESS_SERVICE_CROS_LOCALSEARCH = ChromeProcessDescriptor_ProcessType_PROCESS_SERVICE_CROS_LOCALSEARCH;
-  static const ProcessType PROCESS_SERVICE_CROS_ASSISTANT_AUDIO_DECODER = ChromeProcessDescriptor_ProcessType_PROCESS_SERVICE_CROS_ASSISTANT_AUDIO_DECODER;
-  static const ProcessType PROCESS_SERVICE_FILEUTIL = ChromeProcessDescriptor_ProcessType_PROCESS_SERVICE_FILEUTIL;
-  static const ProcessType PROCESS_SERVICE_PRINTCOMPOSITOR = ChromeProcessDescriptor_ProcessType_PROCESS_SERVICE_PRINTCOMPOSITOR;
-  static const ProcessType PROCESS_SERVICE_PAINTPREVIEW = ChromeProcessDescriptor_ProcessType_PROCESS_SERVICE_PAINTPREVIEW;
-  static const ProcessType PROCESS_SERVICE_SPEECHRECOGNITION = ChromeProcessDescriptor_ProcessType_PROCESS_SERVICE_SPEECHRECOGNITION;
-  static const ProcessType PROCESS_SERVICE_XRDEVICE = ChromeProcessDescriptor_ProcessType_PROCESS_SERVICE_XRDEVICE;
-  static const ProcessType PROCESS_SERVICE_READICON = ChromeProcessDescriptor_ProcessType_PROCESS_SERVICE_READICON;
-  static const ProcessType PROCESS_SERVICE_LANGUAGEDETECTION = ChromeProcessDescriptor_ProcessType_PROCESS_SERVICE_LANGUAGEDETECTION;
-  static const ProcessType PROCESS_SERVICE_SHARING = ChromeProcessDescriptor_ProcessType_PROCESS_SERVICE_SHARING;
-  static const ProcessType PROCESS_SERVICE_MEDIAPARSER = ChromeProcessDescriptor_ProcessType_PROCESS_SERVICE_MEDIAPARSER;
-  static const ProcessType PROCESS_SERVICE_QRCODEGENERATOR = ChromeProcessDescriptor_ProcessType_PROCESS_SERVICE_QRCODEGENERATOR;
-  static const ProcessType PROCESS_SERVICE_PROFILEIMPORT = ChromeProcessDescriptor_ProcessType_PROCESS_SERVICE_PROFILEIMPORT;
-  static const ProcessType PROCESS_SERVICE_IME = ChromeProcessDescriptor_ProcessType_PROCESS_SERVICE_IME;
-  static const ProcessType PROCESS_SERVICE_RECORDING = ChromeProcessDescriptor_ProcessType_PROCESS_SERVICE_RECORDING;
-  static const ProcessType PROCESS_SERVICE_SHAPEDETECTION = ChromeProcessDescriptor_ProcessType_PROCESS_SERVICE_SHAPEDETECTION;
-
-  using FieldMetadata_ProcessType =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kEnum,
-      ::perfetto::protos::pbzero::ChromeProcessDescriptor_ProcessType,
-      ChromeProcessDescriptor>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_ProcessType kProcessType() { return {}; }
-  void set_process_type(::perfetto::protos::pbzero::ChromeProcessDescriptor_ProcessType value) {
-    static constexpr uint32_t field_id = FieldMetadata_ProcessType::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kEnum>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_ProcessPriority =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt32,
-      int32_t,
-      ChromeProcessDescriptor>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_ProcessPriority kProcessPriority() { return {}; }
-  void set_process_priority(int32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_ProcessPriority::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_LegacySortIndex =
-    ::protozero::proto_utils::FieldMetadata<
-      3,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt32,
-      int32_t,
-      ChromeProcessDescriptor>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_LegacySortIndex kLegacySortIndex() { return {}; }
-  void set_legacy_sort_index(int32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_LegacySortIndex::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_HostAppPackageName =
-    ::protozero::proto_utils::FieldMetadata<
-      4,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kString,
-      std::string,
-      ChromeProcessDescriptor>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_HostAppPackageName kHostAppPackageName() { return {}; }
-  void set_host_app_package_name(const char* data, size_t size) {
-    AppendBytes(FieldMetadata_HostAppPackageName::kFieldId, data, size);
-  }
-  void set_host_app_package_name(std::string value) {
-    static constexpr uint32_t field_id = FieldMetadata_HostAppPackageName::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kString>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_CrashTraceId =
-    ::protozero::proto_utils::FieldMetadata<
-      5,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      ChromeProcessDescriptor>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_CrashTraceId kCrashTraceId() { return {}; }
-  void set_crash_trace_id(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_CrashTraceId::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-};
-
-} // Namespace.
-} // Namespace.
-} // Namespace.
-#endif  // Include guard.
-// gen_amalgamated begin header: gen/protos/perfetto/trace/track_event/chrome_renderer_scheduler_state.pbzero.h
-// Autogenerated by the ProtoZero compiler plugin. DO NOT EDIT.
-
-#ifndef PERFETTO_PROTOS_PROTOS_PERFETTO_TRACE_TRACK_EVENT_CHROME_RENDERER_SCHEDULER_STATE_PROTO_H_
-#define PERFETTO_PROTOS_PROTOS_PERFETTO_TRACE_TRACK_EVENT_CHROME_RENDERER_SCHEDULER_STATE_PROTO_H_
-
-#include <stddef.h>
-#include <stdint.h>
-
-// gen_amalgamated expanded: #include "perfetto/protozero/field_writer.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/message.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/packed_repeated_fields.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/proto_decoder.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/proto_utils.h"
-
-namespace perfetto {
-namespace protos {
-namespace pbzero {
-
-enum ChromeRAILMode : int32_t;
-
-enum ChromeRAILMode : int32_t {
-  RAIL_MODE_NONE = 0,
-  RAIL_MODE_RESPONSE = 1,
-  RAIL_MODE_ANIMATION = 2,
-  RAIL_MODE_IDLE = 3,
-  RAIL_MODE_LOAD = 4,
-};
-
-const ChromeRAILMode ChromeRAILMode_MIN = RAIL_MODE_NONE;
-const ChromeRAILMode ChromeRAILMode_MAX = RAIL_MODE_LOAD;
-
-class ChromeRendererSchedulerState_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/1, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  ChromeRendererSchedulerState_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit ChromeRendererSchedulerState_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit ChromeRendererSchedulerState_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_rail_mode() const { return at<1>().valid(); }
-  int32_t rail_mode() const { return at<1>().as_int32(); }
-};
-
-class ChromeRendererSchedulerState : public ::protozero::Message {
- public:
-  using Decoder = ChromeRendererSchedulerState_Decoder;
-  enum : int32_t {
-    kRailModeFieldNumber = 1,
-  };
-
-  using FieldMetadata_RailMode =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kEnum,
-      ::perfetto::protos::pbzero::ChromeRAILMode,
-      ChromeRendererSchedulerState>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_RailMode kRailMode() { return {}; }
-  void set_rail_mode(::perfetto::protos::pbzero::ChromeRAILMode value) {
-    static constexpr uint32_t field_id = FieldMetadata_RailMode::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kEnum>
-        ::Append(*this, field_id, value);
-  }
-};
-
-} // Namespace.
-} // Namespace.
-} // Namespace.
-#endif  // Include guard.
-// gen_amalgamated begin header: gen/protos/perfetto/trace/track_event/chrome_thread_descriptor.pbzero.h
-// Autogenerated by the ProtoZero compiler plugin. DO NOT EDIT.
-
-#ifndef PERFETTO_PROTOS_PROTOS_PERFETTO_TRACE_TRACK_EVENT_CHROME_THREAD_DESCRIPTOR_PROTO_H_
-#define PERFETTO_PROTOS_PROTOS_PERFETTO_TRACE_TRACK_EVENT_CHROME_THREAD_DESCRIPTOR_PROTO_H_
-
-#include <stddef.h>
-#include <stdint.h>
-
-// gen_amalgamated expanded: #include "perfetto/protozero/field_writer.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/message.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/packed_repeated_fields.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/proto_decoder.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/proto_utils.h"
-
-namespace perfetto {
-namespace protos {
-namespace pbzero {
-
-enum ChromeThreadDescriptor_ThreadType : int32_t;
-
-enum ChromeThreadDescriptor_ThreadType : int32_t {
-  ChromeThreadDescriptor_ThreadType_THREAD_UNSPECIFIED = 0,
-  ChromeThreadDescriptor_ThreadType_THREAD_MAIN = 1,
-  ChromeThreadDescriptor_ThreadType_THREAD_IO = 2,
-  ChromeThreadDescriptor_ThreadType_THREAD_POOL_BG_WORKER = 3,
-  ChromeThreadDescriptor_ThreadType_THREAD_POOL_FG_WORKER = 4,
-  ChromeThreadDescriptor_ThreadType_THREAD_POOL_FG_BLOCKING = 5,
-  ChromeThreadDescriptor_ThreadType_THREAD_POOL_BG_BLOCKING = 6,
-  ChromeThreadDescriptor_ThreadType_THREAD_POOL_SERVICE = 7,
-  ChromeThreadDescriptor_ThreadType_THREAD_COMPOSITOR = 8,
-  ChromeThreadDescriptor_ThreadType_THREAD_VIZ_COMPOSITOR = 9,
-  ChromeThreadDescriptor_ThreadType_THREAD_COMPOSITOR_WORKER = 10,
-  ChromeThreadDescriptor_ThreadType_THREAD_SERVICE_WORKER = 11,
-  ChromeThreadDescriptor_ThreadType_THREAD_NETWORK_SERVICE = 12,
-  ChromeThreadDescriptor_ThreadType_THREAD_CHILD_IO = 13,
-  ChromeThreadDescriptor_ThreadType_THREAD_BROWSER_IO = 14,
-  ChromeThreadDescriptor_ThreadType_THREAD_BROWSER_MAIN = 15,
-  ChromeThreadDescriptor_ThreadType_THREAD_RENDERER_MAIN = 16,
-  ChromeThreadDescriptor_ThreadType_THREAD_UTILITY_MAIN = 17,
-  ChromeThreadDescriptor_ThreadType_THREAD_GPU_MAIN = 18,
-  ChromeThreadDescriptor_ThreadType_THREAD_CACHE_BLOCKFILE = 19,
-  ChromeThreadDescriptor_ThreadType_THREAD_MEDIA = 20,
-  ChromeThreadDescriptor_ThreadType_THREAD_AUDIO_OUTPUTDEVICE = 21,
-  ChromeThreadDescriptor_ThreadType_THREAD_AUDIO_INPUTDEVICE = 22,
-  ChromeThreadDescriptor_ThreadType_THREAD_GPU_MEMORY = 23,
-  ChromeThreadDescriptor_ThreadType_THREAD_GPU_VSYNC = 24,
-  ChromeThreadDescriptor_ThreadType_THREAD_DXA_VIDEODECODER = 25,
-  ChromeThreadDescriptor_ThreadType_THREAD_BROWSER_WATCHDOG = 26,
-  ChromeThreadDescriptor_ThreadType_THREAD_WEBRTC_NETWORK = 27,
-  ChromeThreadDescriptor_ThreadType_THREAD_WINDOW_OWNER = 28,
-  ChromeThreadDescriptor_ThreadType_THREAD_WEBRTC_SIGNALING = 29,
-  ChromeThreadDescriptor_ThreadType_THREAD_WEBRTC_WORKER = 30,
-  ChromeThreadDescriptor_ThreadType_THREAD_PPAPI_MAIN = 31,
-  ChromeThreadDescriptor_ThreadType_THREAD_GPU_WATCHDOG = 32,
-  ChromeThreadDescriptor_ThreadType_THREAD_SWAPPER = 33,
-  ChromeThreadDescriptor_ThreadType_THREAD_GAMEPAD_POLLING = 34,
-  ChromeThreadDescriptor_ThreadType_THREAD_WEBCRYPTO = 35,
-  ChromeThreadDescriptor_ThreadType_THREAD_DATABASE = 36,
-  ChromeThreadDescriptor_ThreadType_THREAD_PROXYRESOLVER = 37,
-  ChromeThreadDescriptor_ThreadType_THREAD_DEVTOOLSADB = 38,
-  ChromeThreadDescriptor_ThreadType_THREAD_NETWORKCONFIGWATCHER = 39,
-  ChromeThreadDescriptor_ThreadType_THREAD_WASAPI_RENDER = 40,
-  ChromeThreadDescriptor_ThreadType_THREAD_MEMORY_INFRA = 50,
-  ChromeThreadDescriptor_ThreadType_THREAD_SAMPLING_PROFILER = 51,
-};
-
-const ChromeThreadDescriptor_ThreadType ChromeThreadDescriptor_ThreadType_MIN = ChromeThreadDescriptor_ThreadType_THREAD_UNSPECIFIED;
-const ChromeThreadDescriptor_ThreadType ChromeThreadDescriptor_ThreadType_MAX = ChromeThreadDescriptor_ThreadType_THREAD_SAMPLING_PROFILER;
-
-class ChromeThreadDescriptor_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/2, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  ChromeThreadDescriptor_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit ChromeThreadDescriptor_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit ChromeThreadDescriptor_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_thread_type() const { return at<1>().valid(); }
-  int32_t thread_type() const { return at<1>().as_int32(); }
-  bool has_legacy_sort_index() const { return at<2>().valid(); }
-  int32_t legacy_sort_index() const { return at<2>().as_int32(); }
-};
-
-class ChromeThreadDescriptor : public ::protozero::Message {
- public:
-  using Decoder = ChromeThreadDescriptor_Decoder;
-  enum : int32_t {
-    kThreadTypeFieldNumber = 1,
-    kLegacySortIndexFieldNumber = 2,
-  };
-  using ThreadType = ::perfetto::protos::pbzero::ChromeThreadDescriptor_ThreadType;
-  static const ThreadType THREAD_UNSPECIFIED = ChromeThreadDescriptor_ThreadType_THREAD_UNSPECIFIED;
-  static const ThreadType THREAD_MAIN = ChromeThreadDescriptor_ThreadType_THREAD_MAIN;
-  static const ThreadType THREAD_IO = ChromeThreadDescriptor_ThreadType_THREAD_IO;
-  static const ThreadType THREAD_POOL_BG_WORKER = ChromeThreadDescriptor_ThreadType_THREAD_POOL_BG_WORKER;
-  static const ThreadType THREAD_POOL_FG_WORKER = ChromeThreadDescriptor_ThreadType_THREAD_POOL_FG_WORKER;
-  static const ThreadType THREAD_POOL_FG_BLOCKING = ChromeThreadDescriptor_ThreadType_THREAD_POOL_FG_BLOCKING;
-  static const ThreadType THREAD_POOL_BG_BLOCKING = ChromeThreadDescriptor_ThreadType_THREAD_POOL_BG_BLOCKING;
-  static const ThreadType THREAD_POOL_SERVICE = ChromeThreadDescriptor_ThreadType_THREAD_POOL_SERVICE;
-  static const ThreadType THREAD_COMPOSITOR = ChromeThreadDescriptor_ThreadType_THREAD_COMPOSITOR;
-  static const ThreadType THREAD_VIZ_COMPOSITOR = ChromeThreadDescriptor_ThreadType_THREAD_VIZ_COMPOSITOR;
-  static const ThreadType THREAD_COMPOSITOR_WORKER = ChromeThreadDescriptor_ThreadType_THREAD_COMPOSITOR_WORKER;
-  static const ThreadType THREAD_SERVICE_WORKER = ChromeThreadDescriptor_ThreadType_THREAD_SERVICE_WORKER;
-  static const ThreadType THREAD_NETWORK_SERVICE = ChromeThreadDescriptor_ThreadType_THREAD_NETWORK_SERVICE;
-  static const ThreadType THREAD_CHILD_IO = ChromeThreadDescriptor_ThreadType_THREAD_CHILD_IO;
-  static const ThreadType THREAD_BROWSER_IO = ChromeThreadDescriptor_ThreadType_THREAD_BROWSER_IO;
-  static const ThreadType THREAD_BROWSER_MAIN = ChromeThreadDescriptor_ThreadType_THREAD_BROWSER_MAIN;
-  static const ThreadType THREAD_RENDERER_MAIN = ChromeThreadDescriptor_ThreadType_THREAD_RENDERER_MAIN;
-  static const ThreadType THREAD_UTILITY_MAIN = ChromeThreadDescriptor_ThreadType_THREAD_UTILITY_MAIN;
-  static const ThreadType THREAD_GPU_MAIN = ChromeThreadDescriptor_ThreadType_THREAD_GPU_MAIN;
-  static const ThreadType THREAD_CACHE_BLOCKFILE = ChromeThreadDescriptor_ThreadType_THREAD_CACHE_BLOCKFILE;
-  static const ThreadType THREAD_MEDIA = ChromeThreadDescriptor_ThreadType_THREAD_MEDIA;
-  static const ThreadType THREAD_AUDIO_OUTPUTDEVICE = ChromeThreadDescriptor_ThreadType_THREAD_AUDIO_OUTPUTDEVICE;
-  static const ThreadType THREAD_AUDIO_INPUTDEVICE = ChromeThreadDescriptor_ThreadType_THREAD_AUDIO_INPUTDEVICE;
-  static const ThreadType THREAD_GPU_MEMORY = ChromeThreadDescriptor_ThreadType_THREAD_GPU_MEMORY;
-  static const ThreadType THREAD_GPU_VSYNC = ChromeThreadDescriptor_ThreadType_THREAD_GPU_VSYNC;
-  static const ThreadType THREAD_DXA_VIDEODECODER = ChromeThreadDescriptor_ThreadType_THREAD_DXA_VIDEODECODER;
-  static const ThreadType THREAD_BROWSER_WATCHDOG = ChromeThreadDescriptor_ThreadType_THREAD_BROWSER_WATCHDOG;
-  static const ThreadType THREAD_WEBRTC_NETWORK = ChromeThreadDescriptor_ThreadType_THREAD_WEBRTC_NETWORK;
-  static const ThreadType THREAD_WINDOW_OWNER = ChromeThreadDescriptor_ThreadType_THREAD_WINDOW_OWNER;
-  static const ThreadType THREAD_WEBRTC_SIGNALING = ChromeThreadDescriptor_ThreadType_THREAD_WEBRTC_SIGNALING;
-  static const ThreadType THREAD_WEBRTC_WORKER = ChromeThreadDescriptor_ThreadType_THREAD_WEBRTC_WORKER;
-  static const ThreadType THREAD_PPAPI_MAIN = ChromeThreadDescriptor_ThreadType_THREAD_PPAPI_MAIN;
-  static const ThreadType THREAD_GPU_WATCHDOG = ChromeThreadDescriptor_ThreadType_THREAD_GPU_WATCHDOG;
-  static const ThreadType THREAD_SWAPPER = ChromeThreadDescriptor_ThreadType_THREAD_SWAPPER;
-  static const ThreadType THREAD_GAMEPAD_POLLING = ChromeThreadDescriptor_ThreadType_THREAD_GAMEPAD_POLLING;
-  static const ThreadType THREAD_WEBCRYPTO = ChromeThreadDescriptor_ThreadType_THREAD_WEBCRYPTO;
-  static const ThreadType THREAD_DATABASE = ChromeThreadDescriptor_ThreadType_THREAD_DATABASE;
-  static const ThreadType THREAD_PROXYRESOLVER = ChromeThreadDescriptor_ThreadType_THREAD_PROXYRESOLVER;
-  static const ThreadType THREAD_DEVTOOLSADB = ChromeThreadDescriptor_ThreadType_THREAD_DEVTOOLSADB;
-  static const ThreadType THREAD_NETWORKCONFIGWATCHER = ChromeThreadDescriptor_ThreadType_THREAD_NETWORKCONFIGWATCHER;
-  static const ThreadType THREAD_WASAPI_RENDER = ChromeThreadDescriptor_ThreadType_THREAD_WASAPI_RENDER;
-  static const ThreadType THREAD_MEMORY_INFRA = ChromeThreadDescriptor_ThreadType_THREAD_MEMORY_INFRA;
-  static const ThreadType THREAD_SAMPLING_PROFILER = ChromeThreadDescriptor_ThreadType_THREAD_SAMPLING_PROFILER;
-
-  using FieldMetadata_ThreadType =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kEnum,
-      ::perfetto::protos::pbzero::ChromeThreadDescriptor_ThreadType,
-      ChromeThreadDescriptor>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_ThreadType kThreadType() { return {}; }
-  void set_thread_type(::perfetto::protos::pbzero::ChromeThreadDescriptor_ThreadType value) {
-    static constexpr uint32_t field_id = FieldMetadata_ThreadType::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kEnum>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_LegacySortIndex =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt32,
-      int32_t,
-      ChromeThreadDescriptor>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_LegacySortIndex kLegacySortIndex() { return {}; }
-  void set_legacy_sort_index(int32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_LegacySortIndex::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt32>
-        ::Append(*this, field_id, value);
-  }
-};
-
-} // Namespace.
-} // Namespace.
-} // Namespace.
-#endif  // Include guard.
-// gen_amalgamated begin header: gen/protos/perfetto/trace/track_event/chrome_user_event.pbzero.h
-// Autogenerated by the ProtoZero compiler plugin. DO NOT EDIT.
-
-#ifndef PERFETTO_PROTOS_PROTOS_PERFETTO_TRACE_TRACK_EVENT_CHROME_USER_EVENT_PROTO_H_
-#define PERFETTO_PROTOS_PROTOS_PERFETTO_TRACE_TRACK_EVENT_CHROME_USER_EVENT_PROTO_H_
-
-#include <stddef.h>
-#include <stdint.h>
-
-// gen_amalgamated expanded: #include "perfetto/protozero/field_writer.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/message.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/packed_repeated_fields.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/proto_decoder.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/proto_utils.h"
-
-namespace perfetto {
-namespace protos {
-namespace pbzero {
-
-
-class ChromeUserEvent_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/2, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  ChromeUserEvent_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit ChromeUserEvent_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit ChromeUserEvent_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_action() const { return at<1>().valid(); }
-  ::protozero::ConstChars action() const { return at<1>().as_string(); }
-  bool has_action_hash() const { return at<2>().valid(); }
-  uint64_t action_hash() const { return at<2>().as_uint64(); }
-};
-
-class ChromeUserEvent : public ::protozero::Message {
- public:
-  using Decoder = ChromeUserEvent_Decoder;
-  enum : int32_t {
-    kActionFieldNumber = 1,
-    kActionHashFieldNumber = 2,
-  };
-
-  using FieldMetadata_Action =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kString,
-      std::string,
-      ChromeUserEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Action kAction() { return {}; }
-  void set_action(const char* data, size_t size) {
-    AppendBytes(FieldMetadata_Action::kFieldId, data, size);
-  }
-  void set_action(std::string value) {
-    static constexpr uint32_t field_id = FieldMetadata_Action::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kString>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_ActionHash =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      ChromeUserEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_ActionHash kActionHash() { return {}; }
-  void set_action_hash(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_ActionHash::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-};
-
-} // Namespace.
-} // Namespace.
-} // Namespace.
-#endif  // Include guard.
-// gen_amalgamated begin header: gen/protos/perfetto/trace/track_event/chrome_window_handle_event_info.pbzero.h
-// Autogenerated by the ProtoZero compiler plugin. DO NOT EDIT.
-
-#ifndef PERFETTO_PROTOS_PROTOS_PERFETTO_TRACE_TRACK_EVENT_CHROME_WINDOW_HANDLE_EVENT_INFO_PROTO_H_
-#define PERFETTO_PROTOS_PROTOS_PERFETTO_TRACE_TRACK_EVENT_CHROME_WINDOW_HANDLE_EVENT_INFO_PROTO_H_
-
-#include <stddef.h>
-#include <stdint.h>
-
-// gen_amalgamated expanded: #include "perfetto/protozero/field_writer.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/message.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/packed_repeated_fields.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/proto_decoder.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/proto_utils.h"
-
-namespace perfetto {
-namespace protos {
-namespace pbzero {
-
-
-class ChromeWindowHandleEventInfo_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/3, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  ChromeWindowHandleEventInfo_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit ChromeWindowHandleEventInfo_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit ChromeWindowHandleEventInfo_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_dpi() const { return at<1>().valid(); }
-  uint32_t dpi() const { return at<1>().as_uint32(); }
-  bool has_message_id() const { return at<2>().valid(); }
-  uint32_t message_id() const { return at<2>().as_uint32(); }
-  bool has_hwnd_ptr() const { return at<3>().valid(); }
-  uint64_t hwnd_ptr() const { return at<3>().as_uint64(); }
-};
-
-class ChromeWindowHandleEventInfo : public ::protozero::Message {
- public:
-  using Decoder = ChromeWindowHandleEventInfo_Decoder;
-  enum : int32_t {
-    kDpiFieldNumber = 1,
-    kMessageIdFieldNumber = 2,
-    kHwndPtrFieldNumber = 3,
-  };
-
-  using FieldMetadata_Dpi =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      ChromeWindowHandleEventInfo>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Dpi kDpi() { return {}; }
-  void set_dpi(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Dpi::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_MessageId =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      ChromeWindowHandleEventInfo>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_MessageId kMessageId() { return {}; }
-  void set_message_id(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_MessageId::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_HwndPtr =
-    ::protozero::proto_utils::FieldMetadata<
-      3,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kFixed64,
-      uint64_t,
-      ChromeWindowHandleEventInfo>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_HwndPtr kHwndPtr() { return {}; }
-  void set_hwnd_ptr(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_HwndPtr::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kFixed64>
-        ::Append(*this, field_id, value);
-  }
-};
-
-} // Namespace.
-} // Namespace.
-} // Namespace.
-#endif  // Include guard.
-// gen_amalgamated begin header: gen/protos/perfetto/trace/track_event/counter_descriptor.pbzero.h
-// Autogenerated by the ProtoZero compiler plugin. DO NOT EDIT.
-
-#ifndef PERFETTO_PROTOS_PROTOS_PERFETTO_TRACE_TRACK_EVENT_COUNTER_DESCRIPTOR_PROTO_H_
-#define PERFETTO_PROTOS_PROTOS_PERFETTO_TRACE_TRACK_EVENT_COUNTER_DESCRIPTOR_PROTO_H_
-
-#include <stddef.h>
-#include <stdint.h>
-
-// gen_amalgamated expanded: #include "perfetto/protozero/field_writer.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/message.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/packed_repeated_fields.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/proto_decoder.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/proto_utils.h"
-
-namespace perfetto {
-namespace protos {
-namespace pbzero {
-
-enum CounterDescriptor_BuiltinCounterType : int32_t;
-enum CounterDescriptor_Unit : int32_t;
-
-enum CounterDescriptor_BuiltinCounterType : int32_t {
-  CounterDescriptor_BuiltinCounterType_COUNTER_UNSPECIFIED = 0,
-  CounterDescriptor_BuiltinCounterType_COUNTER_THREAD_TIME_NS = 1,
-  CounterDescriptor_BuiltinCounterType_COUNTER_THREAD_INSTRUCTION_COUNT = 2,
-};
-
-const CounterDescriptor_BuiltinCounterType CounterDescriptor_BuiltinCounterType_MIN = CounterDescriptor_BuiltinCounterType_COUNTER_UNSPECIFIED;
-const CounterDescriptor_BuiltinCounterType CounterDescriptor_BuiltinCounterType_MAX = CounterDescriptor_BuiltinCounterType_COUNTER_THREAD_INSTRUCTION_COUNT;
-
-enum CounterDescriptor_Unit : int32_t {
-  CounterDescriptor_Unit_UNIT_UNSPECIFIED = 0,
-  CounterDescriptor_Unit_UNIT_TIME_NS = 1,
-  CounterDescriptor_Unit_UNIT_COUNT = 2,
-  CounterDescriptor_Unit_UNIT_SIZE_BYTES = 3,
-};
-
-const CounterDescriptor_Unit CounterDescriptor_Unit_MIN = CounterDescriptor_Unit_UNIT_UNSPECIFIED;
-const CounterDescriptor_Unit CounterDescriptor_Unit_MAX = CounterDescriptor_Unit_UNIT_SIZE_BYTES;
-
-class CounterDescriptor_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/6, /*HAS_NONPACKED_REPEATED_FIELDS=*/true> {
- public:
-  CounterDescriptor_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit CounterDescriptor_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit CounterDescriptor_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_type() const { return at<1>().valid(); }
-  int32_t type() const { return at<1>().as_int32(); }
-  bool has_categories() const { return at<2>().valid(); }
-  ::protozero::RepeatedFieldIterator<::protozero::ConstChars> categories() const { return GetRepeated<::protozero::ConstChars>(2); }
-  bool has_unit() const { return at<3>().valid(); }
-  int32_t unit() const { return at<3>().as_int32(); }
-  bool has_unit_name() const { return at<6>().valid(); }
-  ::protozero::ConstChars unit_name() const { return at<6>().as_string(); }
-  bool has_unit_multiplier() const { return at<4>().valid(); }
-  int64_t unit_multiplier() const { return at<4>().as_int64(); }
-  bool has_is_incremental() const { return at<5>().valid(); }
-  bool is_incremental() const { return at<5>().as_bool(); }
-};
-
-class CounterDescriptor : public ::protozero::Message {
- public:
-  using Decoder = CounterDescriptor_Decoder;
-  enum : int32_t {
-    kTypeFieldNumber = 1,
-    kCategoriesFieldNumber = 2,
-    kUnitFieldNumber = 3,
-    kUnitNameFieldNumber = 6,
-    kUnitMultiplierFieldNumber = 4,
-    kIsIncrementalFieldNumber = 5,
-  };
-  using BuiltinCounterType = ::perfetto::protos::pbzero::CounterDescriptor_BuiltinCounterType;
-  using Unit = ::perfetto::protos::pbzero::CounterDescriptor_Unit;
-  static const BuiltinCounterType COUNTER_UNSPECIFIED = CounterDescriptor_BuiltinCounterType_COUNTER_UNSPECIFIED;
-  static const BuiltinCounterType COUNTER_THREAD_TIME_NS = CounterDescriptor_BuiltinCounterType_COUNTER_THREAD_TIME_NS;
-  static const BuiltinCounterType COUNTER_THREAD_INSTRUCTION_COUNT = CounterDescriptor_BuiltinCounterType_COUNTER_THREAD_INSTRUCTION_COUNT;
-  static const Unit UNIT_UNSPECIFIED = CounterDescriptor_Unit_UNIT_UNSPECIFIED;
-  static const Unit UNIT_TIME_NS = CounterDescriptor_Unit_UNIT_TIME_NS;
-  static const Unit UNIT_COUNT = CounterDescriptor_Unit_UNIT_COUNT;
-  static const Unit UNIT_SIZE_BYTES = CounterDescriptor_Unit_UNIT_SIZE_BYTES;
-
-  using FieldMetadata_Type =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kEnum,
-      ::perfetto::protos::pbzero::CounterDescriptor_BuiltinCounterType,
-      CounterDescriptor>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Type kType() { return {}; }
-  void set_type(::perfetto::protos::pbzero::CounterDescriptor_BuiltinCounterType value) {
-    static constexpr uint32_t field_id = FieldMetadata_Type::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kEnum>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Categories =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kRepeatedNotPacked,
-      ::protozero::proto_utils::ProtoSchemaType::kString,
-      std::string,
-      CounterDescriptor>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Categories kCategories() { return {}; }
-  void add_categories(const char* data, size_t size) {
-    AppendBytes(FieldMetadata_Categories::kFieldId, data, size);
-  }
-  void add_categories(std::string value) {
-    static constexpr uint32_t field_id = FieldMetadata_Categories::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kString>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Unit =
-    ::protozero::proto_utils::FieldMetadata<
-      3,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kEnum,
-      ::perfetto::protos::pbzero::CounterDescriptor_Unit,
-      CounterDescriptor>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Unit kUnit() { return {}; }
-  void set_unit(::perfetto::protos::pbzero::CounterDescriptor_Unit value) {
-    static constexpr uint32_t field_id = FieldMetadata_Unit::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kEnum>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_UnitName =
-    ::protozero::proto_utils::FieldMetadata<
-      6,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kString,
-      std::string,
-      CounterDescriptor>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_UnitName kUnitName() { return {}; }
-  void set_unit_name(const char* data, size_t size) {
-    AppendBytes(FieldMetadata_UnitName::kFieldId, data, size);
-  }
-  void set_unit_name(std::string value) {
-    static constexpr uint32_t field_id = FieldMetadata_UnitName::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kString>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_UnitMultiplier =
-    ::protozero::proto_utils::FieldMetadata<
-      4,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt64,
-      int64_t,
-      CounterDescriptor>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_UnitMultiplier kUnitMultiplier() { return {}; }
-  void set_unit_multiplier(int64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_UnitMultiplier::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_IsIncremental =
-    ::protozero::proto_utils::FieldMetadata<
-      5,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kBool,
-      bool,
-      CounterDescriptor>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_IsIncremental kIsIncremental() { return {}; }
-  void set_is_incremental(bool value) {
-    static constexpr uint32_t field_id = FieldMetadata_IsIncremental::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kBool>
-        ::Append(*this, field_id, value);
-  }
-};
-
-} // Namespace.
-} // Namespace.
-} // Namespace.
-#endif  // Include guard.
-// gen_amalgamated begin header: gen/protos/perfetto/trace/track_event/debug_annotation.pbzero.h
-// Autogenerated by the ProtoZero compiler plugin. DO NOT EDIT.
-
-#ifndef PERFETTO_PROTOS_PROTOS_PERFETTO_TRACE_TRACK_EVENT_DEBUG_ANNOTATION_PROTO_H_
-#define PERFETTO_PROTOS_PROTOS_PERFETTO_TRACE_TRACK_EVENT_DEBUG_ANNOTATION_PROTO_H_
-
-#include <stddef.h>
-#include <stdint.h>
-
-// gen_amalgamated expanded: #include "perfetto/protozero/field_writer.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/message.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/packed_repeated_fields.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/proto_decoder.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/proto_utils.h"
-
-namespace perfetto {
-namespace protos {
-namespace pbzero {
-
-class DebugAnnotation;
-class DebugAnnotation_NestedValue;
-enum DebugAnnotation_NestedValue_NestedType : int32_t;
-
-enum DebugAnnotation_NestedValue_NestedType : int32_t {
-  DebugAnnotation_NestedValue_NestedType_UNSPECIFIED = 0,
-  DebugAnnotation_NestedValue_NestedType_DICT = 1,
-  DebugAnnotation_NestedValue_NestedType_ARRAY = 2,
-};
-
-const DebugAnnotation_NestedValue_NestedType DebugAnnotation_NestedValue_NestedType_MIN = DebugAnnotation_NestedValue_NestedType_UNSPECIFIED;
-const DebugAnnotation_NestedValue_NestedType DebugAnnotation_NestedValue_NestedType_MAX = DebugAnnotation_NestedValue_NestedType_ARRAY;
-
-class DebugAnnotationName_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/2, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  DebugAnnotationName_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit DebugAnnotationName_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit DebugAnnotationName_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_iid() const { return at<1>().valid(); }
-  uint64_t iid() const { return at<1>().as_uint64(); }
-  bool has_name() const { return at<2>().valid(); }
-  ::protozero::ConstChars name() const { return at<2>().as_string(); }
-};
-
-class DebugAnnotationName : public ::protozero::Message {
- public:
-  using Decoder = DebugAnnotationName_Decoder;
-  enum : int32_t {
-    kIidFieldNumber = 1,
-    kNameFieldNumber = 2,
-  };
-
-  using FieldMetadata_Iid =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      DebugAnnotationName>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Iid kIid() { return {}; }
-  void set_iid(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Iid::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Name =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kString,
-      std::string,
-      DebugAnnotationName>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Name kName() { return {}; }
-  void set_name(const char* data, size_t size) {
-    AppendBytes(FieldMetadata_Name::kFieldId, data, size);
-  }
-  void set_name(std::string value) {
-    static constexpr uint32_t field_id = FieldMetadata_Name::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kString>
-        ::Append(*this, field_id, value);
-  }
-};
-
-class DebugAnnotation_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/12, /*HAS_NONPACKED_REPEATED_FIELDS=*/true> {
- public:
-  DebugAnnotation_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit DebugAnnotation_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit DebugAnnotation_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_name_iid() const { return at<1>().valid(); }
-  uint64_t name_iid() const { return at<1>().as_uint64(); }
-  bool has_name() const { return at<10>().valid(); }
-  ::protozero::ConstChars name() const { return at<10>().as_string(); }
-  bool has_bool_value() const { return at<2>().valid(); }
-  bool bool_value() const { return at<2>().as_bool(); }
-  bool has_uint_value() const { return at<3>().valid(); }
-  uint64_t uint_value() const { return at<3>().as_uint64(); }
-  bool has_int_value() const { return at<4>().valid(); }
-  int64_t int_value() const { return at<4>().as_int64(); }
-  bool has_double_value() const { return at<5>().valid(); }
-  double double_value() const { return at<5>().as_double(); }
-  bool has_string_value() const { return at<6>().valid(); }
-  ::protozero::ConstChars string_value() const { return at<6>().as_string(); }
-  bool has_pointer_value() const { return at<7>().valid(); }
-  uint64_t pointer_value() const { return at<7>().as_uint64(); }
-  bool has_nested_value() const { return at<8>().valid(); }
-  ::protozero::ConstBytes nested_value() const { return at<8>().as_bytes(); }
-  bool has_legacy_json_value() const { return at<9>().valid(); }
-  ::protozero::ConstChars legacy_json_value() const { return at<9>().as_string(); }
-  bool has_dict_entries() const { return at<11>().valid(); }
-  ::protozero::RepeatedFieldIterator<::protozero::ConstBytes> dict_entries() const { return GetRepeated<::protozero::ConstBytes>(11); }
-  bool has_array_values() const { return at<12>().valid(); }
-  ::protozero::RepeatedFieldIterator<::protozero::ConstBytes> array_values() const { return GetRepeated<::protozero::ConstBytes>(12); }
-};
-
-class DebugAnnotation : public ::protozero::Message {
- public:
-  using Decoder = DebugAnnotation_Decoder;
-  enum : int32_t {
-    kNameIidFieldNumber = 1,
-    kNameFieldNumber = 10,
-    kBoolValueFieldNumber = 2,
-    kUintValueFieldNumber = 3,
-    kIntValueFieldNumber = 4,
-    kDoubleValueFieldNumber = 5,
-    kStringValueFieldNumber = 6,
-    kPointerValueFieldNumber = 7,
-    kNestedValueFieldNumber = 8,
-    kLegacyJsonValueFieldNumber = 9,
-    kDictEntriesFieldNumber = 11,
-    kArrayValuesFieldNumber = 12,
-  };
-  using NestedValue = ::perfetto::protos::pbzero::DebugAnnotation_NestedValue;
-
-  using FieldMetadata_NameIid =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      DebugAnnotation>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_NameIid kNameIid() { return {}; }
-  void set_name_iid(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_NameIid::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Name =
-    ::protozero::proto_utils::FieldMetadata<
-      10,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kString,
-      std::string,
-      DebugAnnotation>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Name kName() { return {}; }
-  void set_name(const char* data, size_t size) {
-    AppendBytes(FieldMetadata_Name::kFieldId, data, size);
-  }
-  void set_name(std::string value) {
-    static constexpr uint32_t field_id = FieldMetadata_Name::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kString>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_BoolValue =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kBool,
-      bool,
-      DebugAnnotation>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_BoolValue kBoolValue() { return {}; }
-  void set_bool_value(bool value) {
-    static constexpr uint32_t field_id = FieldMetadata_BoolValue::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kBool>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_UintValue =
-    ::protozero::proto_utils::FieldMetadata<
-      3,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      DebugAnnotation>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_UintValue kUintValue() { return {}; }
-  void set_uint_value(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_UintValue::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_IntValue =
-    ::protozero::proto_utils::FieldMetadata<
-      4,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt64,
-      int64_t,
-      DebugAnnotation>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_IntValue kIntValue() { return {}; }
-  void set_int_value(int64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_IntValue::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_DoubleValue =
-    ::protozero::proto_utils::FieldMetadata<
-      5,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kDouble,
-      double,
-      DebugAnnotation>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_DoubleValue kDoubleValue() { return {}; }
-  void set_double_value(double value) {
-    static constexpr uint32_t field_id = FieldMetadata_DoubleValue::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kDouble>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_StringValue =
-    ::protozero::proto_utils::FieldMetadata<
-      6,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kString,
-      std::string,
-      DebugAnnotation>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_StringValue kStringValue() { return {}; }
-  void set_string_value(const char* data, size_t size) {
-    AppendBytes(FieldMetadata_StringValue::kFieldId, data, size);
-  }
-  void set_string_value(std::string value) {
-    static constexpr uint32_t field_id = FieldMetadata_StringValue::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kString>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_PointerValue =
-    ::protozero::proto_utils::FieldMetadata<
-      7,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      DebugAnnotation>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_PointerValue kPointerValue() { return {}; }
-  void set_pointer_value(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_PointerValue::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_NestedValue =
-    ::protozero::proto_utils::FieldMetadata<
-      8,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      DebugAnnotation_NestedValue,
-      DebugAnnotation>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_NestedValue kNestedValue() { return {}; }
-  template <typename T = DebugAnnotation_NestedValue> T* set_nested_value() {
-    return BeginNestedMessage<T>(8);
-  }
-
-
-  using FieldMetadata_LegacyJsonValue =
-    ::protozero::proto_utils::FieldMetadata<
-      9,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kString,
-      std::string,
-      DebugAnnotation>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_LegacyJsonValue kLegacyJsonValue() { return {}; }
-  void set_legacy_json_value(const char* data, size_t size) {
-    AppendBytes(FieldMetadata_LegacyJsonValue::kFieldId, data, size);
-  }
-  void set_legacy_json_value(std::string value) {
-    static constexpr uint32_t field_id = FieldMetadata_LegacyJsonValue::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kString>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_DictEntries =
-    ::protozero::proto_utils::FieldMetadata<
-      11,
-      ::protozero::proto_utils::RepetitionType::kRepeatedNotPacked,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      DebugAnnotation,
-      DebugAnnotation>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_DictEntries kDictEntries() { return {}; }
-  template <typename T = DebugAnnotation> T* add_dict_entries() {
-    return BeginNestedMessage<T>(11);
-  }
-
-
-  using FieldMetadata_ArrayValues =
-    ::protozero::proto_utils::FieldMetadata<
-      12,
-      ::protozero::proto_utils::RepetitionType::kRepeatedNotPacked,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      DebugAnnotation,
-      DebugAnnotation>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_ArrayValues kArrayValues() { return {}; }
-  template <typename T = DebugAnnotation> T* add_array_values() {
-    return BeginNestedMessage<T>(12);
-  }
-
-};
-
-class DebugAnnotation_NestedValue_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/8, /*HAS_NONPACKED_REPEATED_FIELDS=*/true> {
- public:
-  DebugAnnotation_NestedValue_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit DebugAnnotation_NestedValue_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit DebugAnnotation_NestedValue_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_nested_type() const { return at<1>().valid(); }
-  int32_t nested_type() const { return at<1>().as_int32(); }
-  bool has_dict_keys() const { return at<2>().valid(); }
-  ::protozero::RepeatedFieldIterator<::protozero::ConstChars> dict_keys() const { return GetRepeated<::protozero::ConstChars>(2); }
-  bool has_dict_values() const { return at<3>().valid(); }
-  ::protozero::RepeatedFieldIterator<::protozero::ConstBytes> dict_values() const { return GetRepeated<::protozero::ConstBytes>(3); }
-  bool has_array_values() const { return at<4>().valid(); }
-  ::protozero::RepeatedFieldIterator<::protozero::ConstBytes> array_values() const { return GetRepeated<::protozero::ConstBytes>(4); }
-  bool has_int_value() const { return at<5>().valid(); }
-  int64_t int_value() const { return at<5>().as_int64(); }
-  bool has_double_value() const { return at<6>().valid(); }
-  double double_value() const { return at<6>().as_double(); }
-  bool has_bool_value() const { return at<7>().valid(); }
-  bool bool_value() const { return at<7>().as_bool(); }
-  bool has_string_value() const { return at<8>().valid(); }
-  ::protozero::ConstChars string_value() const { return at<8>().as_string(); }
-};
-
-class DebugAnnotation_NestedValue : public ::protozero::Message {
- public:
-  using Decoder = DebugAnnotation_NestedValue_Decoder;
-  enum : int32_t {
-    kNestedTypeFieldNumber = 1,
-    kDictKeysFieldNumber = 2,
-    kDictValuesFieldNumber = 3,
-    kArrayValuesFieldNumber = 4,
-    kIntValueFieldNumber = 5,
-    kDoubleValueFieldNumber = 6,
-    kBoolValueFieldNumber = 7,
-    kStringValueFieldNumber = 8,
-  };
-  using NestedType = ::perfetto::protos::pbzero::DebugAnnotation_NestedValue_NestedType;
-  static const NestedType UNSPECIFIED = DebugAnnotation_NestedValue_NestedType_UNSPECIFIED;
-  static const NestedType DICT = DebugAnnotation_NestedValue_NestedType_DICT;
-  static const NestedType ARRAY = DebugAnnotation_NestedValue_NestedType_ARRAY;
-
-  using FieldMetadata_NestedType =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kEnum,
-      ::perfetto::protos::pbzero::DebugAnnotation_NestedValue_NestedType,
-      DebugAnnotation_NestedValue>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_NestedType kNestedType() { return {}; }
-  void set_nested_type(::perfetto::protos::pbzero::DebugAnnotation_NestedValue_NestedType value) {
-    static constexpr uint32_t field_id = FieldMetadata_NestedType::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kEnum>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_DictKeys =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kRepeatedNotPacked,
-      ::protozero::proto_utils::ProtoSchemaType::kString,
-      std::string,
-      DebugAnnotation_NestedValue>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_DictKeys kDictKeys() { return {}; }
-  void add_dict_keys(const char* data, size_t size) {
-    AppendBytes(FieldMetadata_DictKeys::kFieldId, data, size);
-  }
-  void add_dict_keys(std::string value) {
-    static constexpr uint32_t field_id = FieldMetadata_DictKeys::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kString>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_DictValues =
-    ::protozero::proto_utils::FieldMetadata<
-      3,
-      ::protozero::proto_utils::RepetitionType::kRepeatedNotPacked,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      DebugAnnotation_NestedValue,
-      DebugAnnotation_NestedValue>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_DictValues kDictValues() { return {}; }
-  template <typename T = DebugAnnotation_NestedValue> T* add_dict_values() {
-    return BeginNestedMessage<T>(3);
-  }
-
-
-  using FieldMetadata_ArrayValues =
-    ::protozero::proto_utils::FieldMetadata<
-      4,
-      ::protozero::proto_utils::RepetitionType::kRepeatedNotPacked,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      DebugAnnotation_NestedValue,
-      DebugAnnotation_NestedValue>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_ArrayValues kArrayValues() { return {}; }
-  template <typename T = DebugAnnotation_NestedValue> T* add_array_values() {
-    return BeginNestedMessage<T>(4);
-  }
-
-
-  using FieldMetadata_IntValue =
-    ::protozero::proto_utils::FieldMetadata<
-      5,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt64,
-      int64_t,
-      DebugAnnotation_NestedValue>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_IntValue kIntValue() { return {}; }
-  void set_int_value(int64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_IntValue::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_DoubleValue =
-    ::protozero::proto_utils::FieldMetadata<
-      6,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kDouble,
-      double,
-      DebugAnnotation_NestedValue>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_DoubleValue kDoubleValue() { return {}; }
-  void set_double_value(double value) {
-    static constexpr uint32_t field_id = FieldMetadata_DoubleValue::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kDouble>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_BoolValue =
-    ::protozero::proto_utils::FieldMetadata<
-      7,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kBool,
-      bool,
-      DebugAnnotation_NestedValue>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_BoolValue kBoolValue() { return {}; }
-  void set_bool_value(bool value) {
-    static constexpr uint32_t field_id = FieldMetadata_BoolValue::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kBool>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_StringValue =
-    ::protozero::proto_utils::FieldMetadata<
-      8,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kString,
-      std::string,
-      DebugAnnotation_NestedValue>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_StringValue kStringValue() { return {}; }
-  void set_string_value(const char* data, size_t size) {
-    AppendBytes(FieldMetadata_StringValue::kFieldId, data, size);
-  }
-  void set_string_value(std::string value) {
-    static constexpr uint32_t field_id = FieldMetadata_StringValue::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kString>
-        ::Append(*this, field_id, value);
-  }
-};
-
-} // Namespace.
-} // Namespace.
-} // Namespace.
-#endif  // Include guard.
-// gen_amalgamated begin header: gen/protos/perfetto/trace/track_event/log_message.pbzero.h
-// Autogenerated by the ProtoZero compiler plugin. DO NOT EDIT.
-
-#ifndef PERFETTO_PROTOS_PROTOS_PERFETTO_TRACE_TRACK_EVENT_LOG_MESSAGE_PROTO_H_
-#define PERFETTO_PROTOS_PROTOS_PERFETTO_TRACE_TRACK_EVENT_LOG_MESSAGE_PROTO_H_
-
-#include <stddef.h>
-#include <stdint.h>
-
-// gen_amalgamated expanded: #include "perfetto/protozero/field_writer.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/message.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/packed_repeated_fields.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/proto_decoder.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/proto_utils.h"
-
-namespace perfetto {
-namespace protos {
-namespace pbzero {
-
-
-class LogMessageBody_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/2, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  LogMessageBody_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit LogMessageBody_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit LogMessageBody_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_iid() const { return at<1>().valid(); }
-  uint64_t iid() const { return at<1>().as_uint64(); }
-  bool has_body() const { return at<2>().valid(); }
-  ::protozero::ConstChars body() const { return at<2>().as_string(); }
-};
-
-class LogMessageBody : public ::protozero::Message {
- public:
-  using Decoder = LogMessageBody_Decoder;
-  enum : int32_t {
-    kIidFieldNumber = 1,
-    kBodyFieldNumber = 2,
-  };
-
-  using FieldMetadata_Iid =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      LogMessageBody>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Iid kIid() { return {}; }
-  void set_iid(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Iid::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Body =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kString,
-      std::string,
-      LogMessageBody>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Body kBody() { return {}; }
-  void set_body(const char* data, size_t size) {
-    AppendBytes(FieldMetadata_Body::kFieldId, data, size);
-  }
-  void set_body(std::string value) {
-    static constexpr uint32_t field_id = FieldMetadata_Body::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kString>
-        ::Append(*this, field_id, value);
-  }
-};
-
-class LogMessage_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/2, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  LogMessage_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit LogMessage_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit LogMessage_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_source_location_iid() const { return at<1>().valid(); }
-  uint64_t source_location_iid() const { return at<1>().as_uint64(); }
-  bool has_body_iid() const { return at<2>().valid(); }
-  uint64_t body_iid() const { return at<2>().as_uint64(); }
-};
-
-class LogMessage : public ::protozero::Message {
- public:
-  using Decoder = LogMessage_Decoder;
-  enum : int32_t {
-    kSourceLocationIidFieldNumber = 1,
-    kBodyIidFieldNumber = 2,
-  };
-
-  using FieldMetadata_SourceLocationIid =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      LogMessage>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_SourceLocationIid kSourceLocationIid() { return {}; }
-  void set_source_location_iid(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_SourceLocationIid::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_BodyIid =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      LogMessage>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_BodyIid kBodyIid() { return {}; }
-  void set_body_iid(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_BodyIid::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-};
-
-} // Namespace.
-} // Namespace.
-} // Namespace.
-#endif  // Include guard.
-// gen_amalgamated begin header: gen/protos/perfetto/trace/track_event/process_descriptor.pbzero.h
-// Autogenerated by the ProtoZero compiler plugin. DO NOT EDIT.
-
-#ifndef PERFETTO_PROTOS_PROTOS_PERFETTO_TRACE_TRACK_EVENT_PROCESS_DESCRIPTOR_PROTO_H_
-#define PERFETTO_PROTOS_PROTOS_PERFETTO_TRACE_TRACK_EVENT_PROCESS_DESCRIPTOR_PROTO_H_
-
-#include <stddef.h>
-#include <stdint.h>
-
-// gen_amalgamated expanded: #include "perfetto/protozero/field_writer.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/message.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/packed_repeated_fields.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/proto_decoder.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/proto_utils.h"
-
-namespace perfetto {
-namespace protos {
-namespace pbzero {
-
-enum ProcessDescriptor_ChromeProcessType : int32_t;
-
-enum ProcessDescriptor_ChromeProcessType : int32_t {
-  ProcessDescriptor_ChromeProcessType_PROCESS_UNSPECIFIED = 0,
-  ProcessDescriptor_ChromeProcessType_PROCESS_BROWSER = 1,
-  ProcessDescriptor_ChromeProcessType_PROCESS_RENDERER = 2,
-  ProcessDescriptor_ChromeProcessType_PROCESS_UTILITY = 3,
-  ProcessDescriptor_ChromeProcessType_PROCESS_ZYGOTE = 4,
-  ProcessDescriptor_ChromeProcessType_PROCESS_SANDBOX_HELPER = 5,
-  ProcessDescriptor_ChromeProcessType_PROCESS_GPU = 6,
-  ProcessDescriptor_ChromeProcessType_PROCESS_PPAPI_PLUGIN = 7,
-  ProcessDescriptor_ChromeProcessType_PROCESS_PPAPI_BROKER = 8,
-};
-
-const ProcessDescriptor_ChromeProcessType ProcessDescriptor_ChromeProcessType_MIN = ProcessDescriptor_ChromeProcessType_PROCESS_UNSPECIFIED;
-const ProcessDescriptor_ChromeProcessType ProcessDescriptor_ChromeProcessType_MAX = ProcessDescriptor_ChromeProcessType_PROCESS_PPAPI_BROKER;
-
-class ProcessDescriptor_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/7, /*HAS_NONPACKED_REPEATED_FIELDS=*/true> {
- public:
-  ProcessDescriptor_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit ProcessDescriptor_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit ProcessDescriptor_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_pid() const { return at<1>().valid(); }
-  int32_t pid() const { return at<1>().as_int32(); }
-  bool has_cmdline() const { return at<2>().valid(); }
-  ::protozero::RepeatedFieldIterator<::protozero::ConstChars> cmdline() const { return GetRepeated<::protozero::ConstChars>(2); }
-  bool has_process_name() const { return at<6>().valid(); }
-  ::protozero::ConstChars process_name() const { return at<6>().as_string(); }
-  bool has_process_priority() const { return at<5>().valid(); }
-  int32_t process_priority() const { return at<5>().as_int32(); }
-  bool has_start_timestamp_ns() const { return at<7>().valid(); }
-  int64_t start_timestamp_ns() const { return at<7>().as_int64(); }
-  bool has_chrome_process_type() const { return at<4>().valid(); }
-  int32_t chrome_process_type() const { return at<4>().as_int32(); }
-  bool has_legacy_sort_index() const { return at<3>().valid(); }
-  int32_t legacy_sort_index() const { return at<3>().as_int32(); }
-};
-
-class ProcessDescriptor : public ::protozero::Message {
- public:
-  using Decoder = ProcessDescriptor_Decoder;
-  enum : int32_t {
-    kPidFieldNumber = 1,
-    kCmdlineFieldNumber = 2,
-    kProcessNameFieldNumber = 6,
-    kProcessPriorityFieldNumber = 5,
-    kStartTimestampNsFieldNumber = 7,
-    kChromeProcessTypeFieldNumber = 4,
-    kLegacySortIndexFieldNumber = 3,
-  };
-  using ChromeProcessType = ::perfetto::protos::pbzero::ProcessDescriptor_ChromeProcessType;
-  static const ChromeProcessType PROCESS_UNSPECIFIED = ProcessDescriptor_ChromeProcessType_PROCESS_UNSPECIFIED;
-  static const ChromeProcessType PROCESS_BROWSER = ProcessDescriptor_ChromeProcessType_PROCESS_BROWSER;
-  static const ChromeProcessType PROCESS_RENDERER = ProcessDescriptor_ChromeProcessType_PROCESS_RENDERER;
-  static const ChromeProcessType PROCESS_UTILITY = ProcessDescriptor_ChromeProcessType_PROCESS_UTILITY;
-  static const ChromeProcessType PROCESS_ZYGOTE = ProcessDescriptor_ChromeProcessType_PROCESS_ZYGOTE;
-  static const ChromeProcessType PROCESS_SANDBOX_HELPER = ProcessDescriptor_ChromeProcessType_PROCESS_SANDBOX_HELPER;
-  static const ChromeProcessType PROCESS_GPU = ProcessDescriptor_ChromeProcessType_PROCESS_GPU;
-  static const ChromeProcessType PROCESS_PPAPI_PLUGIN = ProcessDescriptor_ChromeProcessType_PROCESS_PPAPI_PLUGIN;
-  static const ChromeProcessType PROCESS_PPAPI_BROKER = ProcessDescriptor_ChromeProcessType_PROCESS_PPAPI_BROKER;
-
-  using FieldMetadata_Pid =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt32,
-      int32_t,
-      ProcessDescriptor>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Pid kPid() { return {}; }
-  void set_pid(int32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Pid::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Cmdline =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kRepeatedNotPacked,
-      ::protozero::proto_utils::ProtoSchemaType::kString,
-      std::string,
-      ProcessDescriptor>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Cmdline kCmdline() { return {}; }
-  void add_cmdline(const char* data, size_t size) {
-    AppendBytes(FieldMetadata_Cmdline::kFieldId, data, size);
-  }
-  void add_cmdline(std::string value) {
-    static constexpr uint32_t field_id = FieldMetadata_Cmdline::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kString>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_ProcessName =
-    ::protozero::proto_utils::FieldMetadata<
-      6,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kString,
-      std::string,
-      ProcessDescriptor>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_ProcessName kProcessName() { return {}; }
-  void set_process_name(const char* data, size_t size) {
-    AppendBytes(FieldMetadata_ProcessName::kFieldId, data, size);
-  }
-  void set_process_name(std::string value) {
-    static constexpr uint32_t field_id = FieldMetadata_ProcessName::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kString>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_ProcessPriority =
-    ::protozero::proto_utils::FieldMetadata<
-      5,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt32,
-      int32_t,
-      ProcessDescriptor>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_ProcessPriority kProcessPriority() { return {}; }
-  void set_process_priority(int32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_ProcessPriority::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_StartTimestampNs =
-    ::protozero::proto_utils::FieldMetadata<
-      7,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt64,
-      int64_t,
-      ProcessDescriptor>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_StartTimestampNs kStartTimestampNs() { return {}; }
-  void set_start_timestamp_ns(int64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_StartTimestampNs::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_ChromeProcessType =
-    ::protozero::proto_utils::FieldMetadata<
-      4,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kEnum,
-      ::perfetto::protos::pbzero::ProcessDescriptor_ChromeProcessType,
-      ProcessDescriptor>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_ChromeProcessType kChromeProcessType() { return {}; }
-  void set_chrome_process_type(::perfetto::protos::pbzero::ProcessDescriptor_ChromeProcessType value) {
-    static constexpr uint32_t field_id = FieldMetadata_ChromeProcessType::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kEnum>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_LegacySortIndex =
-    ::protozero::proto_utils::FieldMetadata<
-      3,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt32,
-      int32_t,
-      ProcessDescriptor>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_LegacySortIndex kLegacySortIndex() { return {}; }
-  void set_legacy_sort_index(int32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_LegacySortIndex::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt32>
-        ::Append(*this, field_id, value);
-  }
-};
-
-} // Namespace.
-} // Namespace.
-} // Namespace.
-#endif  // Include guard.
-// gen_amalgamated begin header: gen/protos/perfetto/trace/track_event/source_location.pbzero.h
-// Autogenerated by the ProtoZero compiler plugin. DO NOT EDIT.
-
-#ifndef PERFETTO_PROTOS_PROTOS_PERFETTO_TRACE_TRACK_EVENT_SOURCE_LOCATION_PROTO_H_
-#define PERFETTO_PROTOS_PROTOS_PERFETTO_TRACE_TRACK_EVENT_SOURCE_LOCATION_PROTO_H_
-
-#include <stddef.h>
-#include <stdint.h>
-
-// gen_amalgamated expanded: #include "perfetto/protozero/field_writer.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/message.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/packed_repeated_fields.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/proto_decoder.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/proto_utils.h"
-
-namespace perfetto {
-namespace protos {
-namespace pbzero {
-
-
-class SourceLocation_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/4, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  SourceLocation_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit SourceLocation_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit SourceLocation_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_iid() const { return at<1>().valid(); }
-  uint64_t iid() const { return at<1>().as_uint64(); }
-  bool has_file_name() const { return at<2>().valid(); }
-  ::protozero::ConstChars file_name() const { return at<2>().as_string(); }
-  bool has_function_name() const { return at<3>().valid(); }
-  ::protozero::ConstChars function_name() const { return at<3>().as_string(); }
-  bool has_line_number() const { return at<4>().valid(); }
-  uint32_t line_number() const { return at<4>().as_uint32(); }
-};
-
-class SourceLocation : public ::protozero::Message {
- public:
-  using Decoder = SourceLocation_Decoder;
-  enum : int32_t {
-    kIidFieldNumber = 1,
-    kFileNameFieldNumber = 2,
-    kFunctionNameFieldNumber = 3,
-    kLineNumberFieldNumber = 4,
-  };
-
-  using FieldMetadata_Iid =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      SourceLocation>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Iid kIid() { return {}; }
-  void set_iid(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Iid::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_FileName =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kString,
-      std::string,
-      SourceLocation>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_FileName kFileName() { return {}; }
-  void set_file_name(const char* data, size_t size) {
-    AppendBytes(FieldMetadata_FileName::kFieldId, data, size);
-  }
-  void set_file_name(std::string value) {
-    static constexpr uint32_t field_id = FieldMetadata_FileName::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kString>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_FunctionName =
-    ::protozero::proto_utils::FieldMetadata<
-      3,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kString,
-      std::string,
-      SourceLocation>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_FunctionName kFunctionName() { return {}; }
-  void set_function_name(const char* data, size_t size) {
-    AppendBytes(FieldMetadata_FunctionName::kFieldId, data, size);
-  }
-  void set_function_name(std::string value) {
-    static constexpr uint32_t field_id = FieldMetadata_FunctionName::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kString>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_LineNumber =
-    ::protozero::proto_utils::FieldMetadata<
-      4,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      SourceLocation>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_LineNumber kLineNumber() { return {}; }
-  void set_line_number(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_LineNumber::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-};
-
-} // Namespace.
-} // Namespace.
-} // Namespace.
-#endif  // Include guard.
-// gen_amalgamated begin header: gen/protos/perfetto/trace/track_event/task_execution.pbzero.h
-// Autogenerated by the ProtoZero compiler plugin. DO NOT EDIT.
-
-#ifndef PERFETTO_PROTOS_PROTOS_PERFETTO_TRACE_TRACK_EVENT_TASK_EXECUTION_PROTO_H_
-#define PERFETTO_PROTOS_PROTOS_PERFETTO_TRACE_TRACK_EVENT_TASK_EXECUTION_PROTO_H_
-
-#include <stddef.h>
-#include <stdint.h>
-
-// gen_amalgamated expanded: #include "perfetto/protozero/field_writer.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/message.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/packed_repeated_fields.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/proto_decoder.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/proto_utils.h"
-
-namespace perfetto {
-namespace protos {
-namespace pbzero {
-
-
-class TaskExecution_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/1, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  TaskExecution_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit TaskExecution_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit TaskExecution_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_posted_from_iid() const { return at<1>().valid(); }
-  uint64_t posted_from_iid() const { return at<1>().as_uint64(); }
-};
-
-class TaskExecution : public ::protozero::Message {
- public:
-  using Decoder = TaskExecution_Decoder;
-  enum : int32_t {
-    kPostedFromIidFieldNumber = 1,
-  };
-
-  using FieldMetadata_PostedFromIid =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      TaskExecution>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_PostedFromIid kPostedFromIid() { return {}; }
-  void set_posted_from_iid(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_PostedFromIid::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-};
-
-} // Namespace.
-} // Namespace.
-} // Namespace.
-#endif  // Include guard.
-// gen_amalgamated begin header: gen/protos/perfetto/trace/track_event/thread_descriptor.pbzero.h
-// Autogenerated by the ProtoZero compiler plugin. DO NOT EDIT.
-
-#ifndef PERFETTO_PROTOS_PROTOS_PERFETTO_TRACE_TRACK_EVENT_THREAD_DESCRIPTOR_PROTO_H_
-#define PERFETTO_PROTOS_PROTOS_PERFETTO_TRACE_TRACK_EVENT_THREAD_DESCRIPTOR_PROTO_H_
-
-#include <stddef.h>
-#include <stdint.h>
-
-// gen_amalgamated expanded: #include "perfetto/protozero/field_writer.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/message.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/packed_repeated_fields.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/proto_decoder.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/proto_utils.h"
-
-namespace perfetto {
-namespace protos {
-namespace pbzero {
-
-enum ThreadDescriptor_ChromeThreadType : int32_t;
-
-enum ThreadDescriptor_ChromeThreadType : int32_t {
-  ThreadDescriptor_ChromeThreadType_CHROME_THREAD_UNSPECIFIED = 0,
-  ThreadDescriptor_ChromeThreadType_CHROME_THREAD_MAIN = 1,
-  ThreadDescriptor_ChromeThreadType_CHROME_THREAD_IO = 2,
-  ThreadDescriptor_ChromeThreadType_CHROME_THREAD_POOL_BG_WORKER = 3,
-  ThreadDescriptor_ChromeThreadType_CHROME_THREAD_POOL_FG_WORKER = 4,
-  ThreadDescriptor_ChromeThreadType_CHROME_THREAD_POOL_FB_BLOCKING = 5,
-  ThreadDescriptor_ChromeThreadType_CHROME_THREAD_POOL_BG_BLOCKING = 6,
-  ThreadDescriptor_ChromeThreadType_CHROME_THREAD_POOL_SERVICE = 7,
-  ThreadDescriptor_ChromeThreadType_CHROME_THREAD_COMPOSITOR = 8,
-  ThreadDescriptor_ChromeThreadType_CHROME_THREAD_VIZ_COMPOSITOR = 9,
-  ThreadDescriptor_ChromeThreadType_CHROME_THREAD_COMPOSITOR_WORKER = 10,
-  ThreadDescriptor_ChromeThreadType_CHROME_THREAD_SERVICE_WORKER = 11,
-  ThreadDescriptor_ChromeThreadType_CHROME_THREAD_MEMORY_INFRA = 50,
-  ThreadDescriptor_ChromeThreadType_CHROME_THREAD_SAMPLING_PROFILER = 51,
-};
-
-const ThreadDescriptor_ChromeThreadType ThreadDescriptor_ChromeThreadType_MIN = ThreadDescriptor_ChromeThreadType_CHROME_THREAD_UNSPECIFIED;
-const ThreadDescriptor_ChromeThreadType ThreadDescriptor_ChromeThreadType_MAX = ThreadDescriptor_ChromeThreadType_CHROME_THREAD_SAMPLING_PROFILER;
-
-class ThreadDescriptor_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/8, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  ThreadDescriptor_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit ThreadDescriptor_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit ThreadDescriptor_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_pid() const { return at<1>().valid(); }
-  int32_t pid() const { return at<1>().as_int32(); }
-  bool has_tid() const { return at<2>().valid(); }
-  int32_t tid() const { return at<2>().as_int32(); }
-  bool has_thread_name() const { return at<5>().valid(); }
-  ::protozero::ConstChars thread_name() const { return at<5>().as_string(); }
-  bool has_chrome_thread_type() const { return at<4>().valid(); }
-  int32_t chrome_thread_type() const { return at<4>().as_int32(); }
-  bool has_reference_timestamp_us() const { return at<6>().valid(); }
-  int64_t reference_timestamp_us() const { return at<6>().as_int64(); }
-  bool has_reference_thread_time_us() const { return at<7>().valid(); }
-  int64_t reference_thread_time_us() const { return at<7>().as_int64(); }
-  bool has_reference_thread_instruction_count() const { return at<8>().valid(); }
-  int64_t reference_thread_instruction_count() const { return at<8>().as_int64(); }
-  bool has_legacy_sort_index() const { return at<3>().valid(); }
-  int32_t legacy_sort_index() const { return at<3>().as_int32(); }
-};
-
-class ThreadDescriptor : public ::protozero::Message {
- public:
-  using Decoder = ThreadDescriptor_Decoder;
-  enum : int32_t {
-    kPidFieldNumber = 1,
-    kTidFieldNumber = 2,
-    kThreadNameFieldNumber = 5,
-    kChromeThreadTypeFieldNumber = 4,
-    kReferenceTimestampUsFieldNumber = 6,
-    kReferenceThreadTimeUsFieldNumber = 7,
-    kReferenceThreadInstructionCountFieldNumber = 8,
-    kLegacySortIndexFieldNumber = 3,
-  };
-  using ChromeThreadType = ::perfetto::protos::pbzero::ThreadDescriptor_ChromeThreadType;
-  static const ChromeThreadType CHROME_THREAD_UNSPECIFIED = ThreadDescriptor_ChromeThreadType_CHROME_THREAD_UNSPECIFIED;
-  static const ChromeThreadType CHROME_THREAD_MAIN = ThreadDescriptor_ChromeThreadType_CHROME_THREAD_MAIN;
-  static const ChromeThreadType CHROME_THREAD_IO = ThreadDescriptor_ChromeThreadType_CHROME_THREAD_IO;
-  static const ChromeThreadType CHROME_THREAD_POOL_BG_WORKER = ThreadDescriptor_ChromeThreadType_CHROME_THREAD_POOL_BG_WORKER;
-  static const ChromeThreadType CHROME_THREAD_POOL_FG_WORKER = ThreadDescriptor_ChromeThreadType_CHROME_THREAD_POOL_FG_WORKER;
-  static const ChromeThreadType CHROME_THREAD_POOL_FB_BLOCKING = ThreadDescriptor_ChromeThreadType_CHROME_THREAD_POOL_FB_BLOCKING;
-  static const ChromeThreadType CHROME_THREAD_POOL_BG_BLOCKING = ThreadDescriptor_ChromeThreadType_CHROME_THREAD_POOL_BG_BLOCKING;
-  static const ChromeThreadType CHROME_THREAD_POOL_SERVICE = ThreadDescriptor_ChromeThreadType_CHROME_THREAD_POOL_SERVICE;
-  static const ChromeThreadType CHROME_THREAD_COMPOSITOR = ThreadDescriptor_ChromeThreadType_CHROME_THREAD_COMPOSITOR;
-  static const ChromeThreadType CHROME_THREAD_VIZ_COMPOSITOR = ThreadDescriptor_ChromeThreadType_CHROME_THREAD_VIZ_COMPOSITOR;
-  static const ChromeThreadType CHROME_THREAD_COMPOSITOR_WORKER = ThreadDescriptor_ChromeThreadType_CHROME_THREAD_COMPOSITOR_WORKER;
-  static const ChromeThreadType CHROME_THREAD_SERVICE_WORKER = ThreadDescriptor_ChromeThreadType_CHROME_THREAD_SERVICE_WORKER;
-  static const ChromeThreadType CHROME_THREAD_MEMORY_INFRA = ThreadDescriptor_ChromeThreadType_CHROME_THREAD_MEMORY_INFRA;
-  static const ChromeThreadType CHROME_THREAD_SAMPLING_PROFILER = ThreadDescriptor_ChromeThreadType_CHROME_THREAD_SAMPLING_PROFILER;
-
-  using FieldMetadata_Pid =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt32,
-      int32_t,
-      ThreadDescriptor>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Pid kPid() { return {}; }
-  void set_pid(int32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Pid::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Tid =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt32,
-      int32_t,
-      ThreadDescriptor>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Tid kTid() { return {}; }
-  void set_tid(int32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Tid::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_ThreadName =
-    ::protozero::proto_utils::FieldMetadata<
-      5,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kString,
-      std::string,
-      ThreadDescriptor>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_ThreadName kThreadName() { return {}; }
-  void set_thread_name(const char* data, size_t size) {
-    AppendBytes(FieldMetadata_ThreadName::kFieldId, data, size);
-  }
-  void set_thread_name(std::string value) {
-    static constexpr uint32_t field_id = FieldMetadata_ThreadName::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kString>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_ChromeThreadType =
-    ::protozero::proto_utils::FieldMetadata<
-      4,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kEnum,
-      ::perfetto::protos::pbzero::ThreadDescriptor_ChromeThreadType,
-      ThreadDescriptor>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_ChromeThreadType kChromeThreadType() { return {}; }
-  void set_chrome_thread_type(::perfetto::protos::pbzero::ThreadDescriptor_ChromeThreadType value) {
-    static constexpr uint32_t field_id = FieldMetadata_ChromeThreadType::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kEnum>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_ReferenceTimestampUs =
-    ::protozero::proto_utils::FieldMetadata<
-      6,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt64,
-      int64_t,
-      ThreadDescriptor>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_ReferenceTimestampUs kReferenceTimestampUs() { return {}; }
-  void set_reference_timestamp_us(int64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_ReferenceTimestampUs::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_ReferenceThreadTimeUs =
-    ::protozero::proto_utils::FieldMetadata<
-      7,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt64,
-      int64_t,
-      ThreadDescriptor>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_ReferenceThreadTimeUs kReferenceThreadTimeUs() { return {}; }
-  void set_reference_thread_time_us(int64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_ReferenceThreadTimeUs::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_ReferenceThreadInstructionCount =
-    ::protozero::proto_utils::FieldMetadata<
-      8,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt64,
-      int64_t,
-      ThreadDescriptor>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_ReferenceThreadInstructionCount kReferenceThreadInstructionCount() { return {}; }
-  void set_reference_thread_instruction_count(int64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_ReferenceThreadInstructionCount::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_LegacySortIndex =
-    ::protozero::proto_utils::FieldMetadata<
-      3,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt32,
-      int32_t,
-      ThreadDescriptor>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_LegacySortIndex kLegacySortIndex() { return {}; }
-  void set_legacy_sort_index(int32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_LegacySortIndex::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt32>
-        ::Append(*this, field_id, value);
-  }
-};
-
-} // Namespace.
-} // Namespace.
-} // Namespace.
-#endif  // Include guard.
-// gen_amalgamated begin header: gen/protos/perfetto/trace/track_event/track_descriptor.pbzero.h
-// Autogenerated by the ProtoZero compiler plugin. DO NOT EDIT.
-
-#ifndef PERFETTO_PROTOS_PROTOS_PERFETTO_TRACE_TRACK_EVENT_TRACK_DESCRIPTOR_PROTO_H_
-#define PERFETTO_PROTOS_PROTOS_PERFETTO_TRACE_TRACK_EVENT_TRACK_DESCRIPTOR_PROTO_H_
-
-#include <stddef.h>
-#include <stdint.h>
-
-// gen_amalgamated expanded: #include "perfetto/protozero/field_writer.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/message.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/packed_repeated_fields.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/proto_decoder.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/proto_utils.h"
-
-namespace perfetto {
-namespace protos {
-namespace pbzero {
-
-class ChromeProcessDescriptor;
-class ChromeThreadDescriptor;
-class CounterDescriptor;
-class ProcessDescriptor;
-class ThreadDescriptor;
-
-class TrackDescriptor_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/8, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  TrackDescriptor_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit TrackDescriptor_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit TrackDescriptor_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_uuid() const { return at<1>().valid(); }
-  uint64_t uuid() const { return at<1>().as_uint64(); }
-  bool has_parent_uuid() const { return at<5>().valid(); }
-  uint64_t parent_uuid() const { return at<5>().as_uint64(); }
-  bool has_name() const { return at<2>().valid(); }
-  ::protozero::ConstChars name() const { return at<2>().as_string(); }
-  bool has_process() const { return at<3>().valid(); }
-  ::protozero::ConstBytes process() const { return at<3>().as_bytes(); }
-  bool has_chrome_process() const { return at<6>().valid(); }
-  ::protozero::ConstBytes chrome_process() const { return at<6>().as_bytes(); }
-  bool has_thread() const { return at<4>().valid(); }
-  ::protozero::ConstBytes thread() const { return at<4>().as_bytes(); }
-  bool has_chrome_thread() const { return at<7>().valid(); }
-  ::protozero::ConstBytes chrome_thread() const { return at<7>().as_bytes(); }
-  bool has_counter() const { return at<8>().valid(); }
-  ::protozero::ConstBytes counter() const { return at<8>().as_bytes(); }
-};
-
-class TrackDescriptor : public ::protozero::Message {
- public:
-  using Decoder = TrackDescriptor_Decoder;
-  enum : int32_t {
-    kUuidFieldNumber = 1,
-    kParentUuidFieldNumber = 5,
-    kNameFieldNumber = 2,
-    kProcessFieldNumber = 3,
-    kChromeProcessFieldNumber = 6,
-    kThreadFieldNumber = 4,
-    kChromeThreadFieldNumber = 7,
-    kCounterFieldNumber = 8,
-  };
-
-  using FieldMetadata_Uuid =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      TrackDescriptor>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Uuid kUuid() { return {}; }
-  void set_uuid(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Uuid::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_ParentUuid =
-    ::protozero::proto_utils::FieldMetadata<
-      5,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      TrackDescriptor>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_ParentUuid kParentUuid() { return {}; }
-  void set_parent_uuid(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_ParentUuid::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Name =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kString,
-      std::string,
-      TrackDescriptor>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Name kName() { return {}; }
-  void set_name(const char* data, size_t size) {
-    AppendBytes(FieldMetadata_Name::kFieldId, data, size);
-  }
-  void set_name(std::string value) {
-    static constexpr uint32_t field_id = FieldMetadata_Name::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kString>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Process =
-    ::protozero::proto_utils::FieldMetadata<
-      3,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      ProcessDescriptor,
-      TrackDescriptor>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Process kProcess() { return {}; }
-  template <typename T = ProcessDescriptor> T* set_process() {
-    return BeginNestedMessage<T>(3);
-  }
-
-
-  using FieldMetadata_ChromeProcess =
-    ::protozero::proto_utils::FieldMetadata<
-      6,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      ChromeProcessDescriptor,
-      TrackDescriptor>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_ChromeProcess kChromeProcess() { return {}; }
-  template <typename T = ChromeProcessDescriptor> T* set_chrome_process() {
-    return BeginNestedMessage<T>(6);
-  }
-
-
-  using FieldMetadata_Thread =
-    ::protozero::proto_utils::FieldMetadata<
-      4,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      ThreadDescriptor,
-      TrackDescriptor>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Thread kThread() { return {}; }
-  template <typename T = ThreadDescriptor> T* set_thread() {
-    return BeginNestedMessage<T>(4);
-  }
-
-
-  using FieldMetadata_ChromeThread =
-    ::protozero::proto_utils::FieldMetadata<
-      7,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      ChromeThreadDescriptor,
-      TrackDescriptor>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_ChromeThread kChromeThread() { return {}; }
-  template <typename T = ChromeThreadDescriptor> T* set_chrome_thread() {
-    return BeginNestedMessage<T>(7);
-  }
-
-
-  using FieldMetadata_Counter =
-    ::protozero::proto_utils::FieldMetadata<
-      8,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      CounterDescriptor,
-      TrackDescriptor>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Counter kCounter() { return {}; }
-  template <typename T = CounterDescriptor> T* set_counter() {
-    return BeginNestedMessage<T>(8);
-  }
-
-};
-
-} // Namespace.
-} // Namespace.
-} // Namespace.
-#endif  // Include guard.
-// gen_amalgamated begin header: gen/protos/perfetto/trace/track_event/track_event.pbzero.h
-// Autogenerated by the ProtoZero compiler plugin. DO NOT EDIT.
-
-#ifndef PERFETTO_PROTOS_PROTOS_PERFETTO_TRACE_TRACK_EVENT_TRACK_EVENT_PROTO_H_
-#define PERFETTO_PROTOS_PROTOS_PERFETTO_TRACE_TRACK_EVENT_TRACK_EVENT_PROTO_H_
-
-#include <stddef.h>
-#include <stdint.h>
-
-// gen_amalgamated expanded: #include "perfetto/protozero/field_writer.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/message.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/packed_repeated_fields.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/proto_decoder.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/proto_utils.h"
-
-namespace perfetto {
-namespace protos {
-namespace pbzero {
-
-class ChromeApplicationStateInfo;
-class ChromeCompositorSchedulerState;
-class ChromeContentSettingsEventInfo;
-class ChromeFrameReporter;
-class ChromeHistogramSample;
-class ChromeKeyedService;
-class ChromeLatencyInfo;
-class ChromeLegacyIpc;
-class ChromeMessagePump;
-class ChromeMojoEventInfo;
-class ChromeRendererSchedulerState;
-class ChromeUserEvent;
-class ChromeWindowHandleEventInfo;
-class DebugAnnotation;
-class LogMessage;
-class SourceLocation;
-class TaskExecution;
-class TrackEvent_LegacyEvent;
-enum TrackEvent_LegacyEvent_FlowDirection : int32_t;
-enum TrackEvent_LegacyEvent_InstantEventScope : int32_t;
-enum TrackEvent_Type : int32_t;
-
-enum TrackEvent_Type : int32_t {
-  TrackEvent_Type_TYPE_UNSPECIFIED = 0,
-  TrackEvent_Type_TYPE_SLICE_BEGIN = 1,
-  TrackEvent_Type_TYPE_SLICE_END = 2,
-  TrackEvent_Type_TYPE_INSTANT = 3,
-  TrackEvent_Type_TYPE_COUNTER = 4,
-};
-
-const TrackEvent_Type TrackEvent_Type_MIN = TrackEvent_Type_TYPE_UNSPECIFIED;
-const TrackEvent_Type TrackEvent_Type_MAX = TrackEvent_Type_TYPE_COUNTER;
-
-enum TrackEvent_LegacyEvent_FlowDirection : int32_t {
-  TrackEvent_LegacyEvent_FlowDirection_FLOW_UNSPECIFIED = 0,
-  TrackEvent_LegacyEvent_FlowDirection_FLOW_IN = 1,
-  TrackEvent_LegacyEvent_FlowDirection_FLOW_OUT = 2,
-  TrackEvent_LegacyEvent_FlowDirection_FLOW_INOUT = 3,
-};
-
-const TrackEvent_LegacyEvent_FlowDirection TrackEvent_LegacyEvent_FlowDirection_MIN = TrackEvent_LegacyEvent_FlowDirection_FLOW_UNSPECIFIED;
-const TrackEvent_LegacyEvent_FlowDirection TrackEvent_LegacyEvent_FlowDirection_MAX = TrackEvent_LegacyEvent_FlowDirection_FLOW_INOUT;
-
-enum TrackEvent_LegacyEvent_InstantEventScope : int32_t {
-  TrackEvent_LegacyEvent_InstantEventScope_SCOPE_UNSPECIFIED = 0,
-  TrackEvent_LegacyEvent_InstantEventScope_SCOPE_GLOBAL = 1,
-  TrackEvent_LegacyEvent_InstantEventScope_SCOPE_PROCESS = 2,
-  TrackEvent_LegacyEvent_InstantEventScope_SCOPE_THREAD = 3,
-};
-
-const TrackEvent_LegacyEvent_InstantEventScope TrackEvent_LegacyEvent_InstantEventScope_MIN = TrackEvent_LegacyEvent_InstantEventScope_SCOPE_UNSPECIFIED;
-const TrackEvent_LegacyEvent_InstantEventScope TrackEvent_LegacyEvent_InstantEventScope_MAX = TrackEvent_LegacyEvent_InstantEventScope_SCOPE_THREAD;
-
-class EventName_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/2, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  EventName_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit EventName_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit EventName_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_iid() const { return at<1>().valid(); }
-  uint64_t iid() const { return at<1>().as_uint64(); }
-  bool has_name() const { return at<2>().valid(); }
-  ::protozero::ConstChars name() const { return at<2>().as_string(); }
-};
-
-class EventName : public ::protozero::Message {
- public:
-  using Decoder = EventName_Decoder;
-  enum : int32_t {
-    kIidFieldNumber = 1,
-    kNameFieldNumber = 2,
-  };
-
-  using FieldMetadata_Iid =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      EventName>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Iid kIid() { return {}; }
-  void set_iid(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Iid::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Name =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kString,
-      std::string,
-      EventName>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Name kName() { return {}; }
-  void set_name(const char* data, size_t size) {
-    AppendBytes(FieldMetadata_Name::kFieldId, data, size);
-  }
-  void set_name(std::string value) {
-    static constexpr uint32_t field_id = FieldMetadata_Name::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kString>
-        ::Append(*this, field_id, value);
-  }
-};
-
-class EventCategory_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/2, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  EventCategory_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit EventCategory_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit EventCategory_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_iid() const { return at<1>().valid(); }
-  uint64_t iid() const { return at<1>().as_uint64(); }
-  bool has_name() const { return at<2>().valid(); }
-  ::protozero::ConstChars name() const { return at<2>().as_string(); }
-};
-
-class EventCategory : public ::protozero::Message {
- public:
-  using Decoder = EventCategory_Decoder;
-  enum : int32_t {
-    kIidFieldNumber = 1,
-    kNameFieldNumber = 2,
-  };
-
-  using FieldMetadata_Iid =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      EventCategory>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Iid kIid() { return {}; }
-  void set_iid(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Iid::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Name =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kString,
-      std::string,
-      EventCategory>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Name kName() { return {}; }
-  void set_name(const char* data, size_t size) {
-    AppendBytes(FieldMetadata_Name::kFieldId, data, size);
-  }
-  void set_name(std::string value) {
-    static constexpr uint32_t field_id = FieldMetadata_Name::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kString>
-        ::Append(*this, field_id, value);
-  }
-};
-
-class TrackEventDefaults_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/45, /*HAS_NONPACKED_REPEATED_FIELDS=*/true> {
- public:
-  TrackEventDefaults_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit TrackEventDefaults_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit TrackEventDefaults_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_track_uuid() const { return at<11>().valid(); }
-  uint64_t track_uuid() const { return at<11>().as_uint64(); }
-  bool has_extra_counter_track_uuids() const { return at<31>().valid(); }
-  ::protozero::RepeatedFieldIterator<uint64_t> extra_counter_track_uuids() const { return GetRepeated<uint64_t>(31); }
-  bool has_extra_double_counter_track_uuids() const { return at<45>().valid(); }
-  ::protozero::RepeatedFieldIterator<uint64_t> extra_double_counter_track_uuids() const { return GetRepeated<uint64_t>(45); }
-};
-
-class TrackEventDefaults : public ::protozero::Message {
- public:
-  using Decoder = TrackEventDefaults_Decoder;
-  enum : int32_t {
-    kTrackUuidFieldNumber = 11,
-    kExtraCounterTrackUuidsFieldNumber = 31,
-    kExtraDoubleCounterTrackUuidsFieldNumber = 45,
-  };
-
-  using FieldMetadata_TrackUuid =
-    ::protozero::proto_utils::FieldMetadata<
-      11,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      TrackEventDefaults>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_TrackUuid kTrackUuid() { return {}; }
-  void set_track_uuid(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_TrackUuid::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_ExtraCounterTrackUuids =
-    ::protozero::proto_utils::FieldMetadata<
-      31,
-      ::protozero::proto_utils::RepetitionType::kRepeatedNotPacked,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      TrackEventDefaults>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_ExtraCounterTrackUuids kExtraCounterTrackUuids() { return {}; }
-  void add_extra_counter_track_uuids(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_ExtraCounterTrackUuids::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_ExtraDoubleCounterTrackUuids =
-    ::protozero::proto_utils::FieldMetadata<
-      45,
-      ::protozero::proto_utils::RepetitionType::kRepeatedNotPacked,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      TrackEventDefaults>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_ExtraDoubleCounterTrackUuids kExtraDoubleCounterTrackUuids() { return {}; }
-  void add_extra_double_counter_track_uuids(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_ExtraDoubleCounterTrackUuids::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-};
-
-class TrackEvent_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/46, /*HAS_NONPACKED_REPEATED_FIELDS=*/true> {
- public:
-  TrackEvent_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit TrackEvent_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit TrackEvent_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_category_iids() const { return at<3>().valid(); }
-  ::protozero::RepeatedFieldIterator<uint64_t> category_iids() const { return GetRepeated<uint64_t>(3); }
-  bool has_categories() const { return at<22>().valid(); }
-  ::protozero::RepeatedFieldIterator<::protozero::ConstChars> categories() const { return GetRepeated<::protozero::ConstChars>(22); }
-  bool has_name_iid() const { return at<10>().valid(); }
-  uint64_t name_iid() const { return at<10>().as_uint64(); }
-  bool has_name() const { return at<23>().valid(); }
-  ::protozero::ConstChars name() const { return at<23>().as_string(); }
-  bool has_type() const { return at<9>().valid(); }
-  int32_t type() const { return at<9>().as_int32(); }
-  bool has_track_uuid() const { return at<11>().valid(); }
-  uint64_t track_uuid() const { return at<11>().as_uint64(); }
-  bool has_counter_value() const { return at<30>().valid(); }
-  int64_t counter_value() const { return at<30>().as_int64(); }
-  bool has_double_counter_value() const { return at<44>().valid(); }
-  double double_counter_value() const { return at<44>().as_double(); }
-  bool has_extra_counter_track_uuids() const { return at<31>().valid(); }
-  ::protozero::RepeatedFieldIterator<uint64_t> extra_counter_track_uuids() const { return GetRepeated<uint64_t>(31); }
-  bool has_extra_counter_values() const { return at<12>().valid(); }
-  ::protozero::RepeatedFieldIterator<int64_t> extra_counter_values() const { return GetRepeated<int64_t>(12); }
-  bool has_extra_double_counter_track_uuids() const { return at<45>().valid(); }
-  ::protozero::RepeatedFieldIterator<uint64_t> extra_double_counter_track_uuids() const { return GetRepeated<uint64_t>(45); }
-  bool has_extra_double_counter_values() const { return at<46>().valid(); }
-  ::protozero::RepeatedFieldIterator<double> extra_double_counter_values() const { return GetRepeated<double>(46); }
-  bool has_flow_ids() const { return at<36>().valid(); }
-  ::protozero::RepeatedFieldIterator<uint64_t> flow_ids() const { return GetRepeated<uint64_t>(36); }
-  bool has_terminating_flow_ids() const { return at<42>().valid(); }
-  ::protozero::RepeatedFieldIterator<uint64_t> terminating_flow_ids() const { return GetRepeated<uint64_t>(42); }
-  bool has_debug_annotations() const { return at<4>().valid(); }
-  ::protozero::RepeatedFieldIterator<::protozero::ConstBytes> debug_annotations() const { return GetRepeated<::protozero::ConstBytes>(4); }
-  bool has_task_execution() const { return at<5>().valid(); }
-  ::protozero::ConstBytes task_execution() const { return at<5>().as_bytes(); }
-  bool has_log_message() const { return at<21>().valid(); }
-  ::protozero::ConstBytes log_message() const { return at<21>().as_bytes(); }
-  bool has_cc_scheduler_state() const { return at<24>().valid(); }
-  ::protozero::ConstBytes cc_scheduler_state() const { return at<24>().as_bytes(); }
-  bool has_chrome_user_event() const { return at<25>().valid(); }
-  ::protozero::ConstBytes chrome_user_event() const { return at<25>().as_bytes(); }
-  bool has_chrome_keyed_service() const { return at<26>().valid(); }
-  ::protozero::ConstBytes chrome_keyed_service() const { return at<26>().as_bytes(); }
-  bool has_chrome_legacy_ipc() const { return at<27>().valid(); }
-  ::protozero::ConstBytes chrome_legacy_ipc() const { return at<27>().as_bytes(); }
-  bool has_chrome_histogram_sample() const { return at<28>().valid(); }
-  ::protozero::ConstBytes chrome_histogram_sample() const { return at<28>().as_bytes(); }
-  bool has_chrome_latency_info() const { return at<29>().valid(); }
-  ::protozero::ConstBytes chrome_latency_info() const { return at<29>().as_bytes(); }
-  bool has_chrome_frame_reporter() const { return at<32>().valid(); }
-  ::protozero::ConstBytes chrome_frame_reporter() const { return at<32>().as_bytes(); }
-  bool has_chrome_application_state_info() const { return at<39>().valid(); }
-  ::protozero::ConstBytes chrome_application_state_info() const { return at<39>().as_bytes(); }
-  bool has_chrome_renderer_scheduler_state() const { return at<40>().valid(); }
-  ::protozero::ConstBytes chrome_renderer_scheduler_state() const { return at<40>().as_bytes(); }
-  bool has_chrome_window_handle_event_info() const { return at<41>().valid(); }
-  ::protozero::ConstBytes chrome_window_handle_event_info() const { return at<41>().as_bytes(); }
-  bool has_chrome_content_settings_event_info() const { return at<43>().valid(); }
-  ::protozero::ConstBytes chrome_content_settings_event_info() const { return at<43>().as_bytes(); }
-  bool has_source_location() const { return at<33>().valid(); }
-  ::protozero::ConstBytes source_location() const { return at<33>().as_bytes(); }
-  bool has_source_location_iid() const { return at<34>().valid(); }
-  uint64_t source_location_iid() const { return at<34>().as_uint64(); }
-  bool has_chrome_message_pump() const { return at<35>().valid(); }
-  ::protozero::ConstBytes chrome_message_pump() const { return at<35>().as_bytes(); }
-  bool has_chrome_mojo_event_info() const { return at<38>().valid(); }
-  ::protozero::ConstBytes chrome_mojo_event_info() const { return at<38>().as_bytes(); }
-  bool has_timestamp_delta_us() const { return at<1>().valid(); }
-  int64_t timestamp_delta_us() const { return at<1>().as_int64(); }
-  bool has_timestamp_absolute_us() const { return at<16>().valid(); }
-  int64_t timestamp_absolute_us() const { return at<16>().as_int64(); }
-  bool has_thread_time_delta_us() const { return at<2>().valid(); }
-  int64_t thread_time_delta_us() const { return at<2>().as_int64(); }
-  bool has_thread_time_absolute_us() const { return at<17>().valid(); }
-  int64_t thread_time_absolute_us() const { return at<17>().as_int64(); }
-  bool has_thread_instruction_count_delta() const { return at<8>().valid(); }
-  int64_t thread_instruction_count_delta() const { return at<8>().as_int64(); }
-  bool has_thread_instruction_count_absolute() const { return at<20>().valid(); }
-  int64_t thread_instruction_count_absolute() const { return at<20>().as_int64(); }
-  bool has_legacy_event() const { return at<6>().valid(); }
-  ::protozero::ConstBytes legacy_event() const { return at<6>().as_bytes(); }
-};
-
-class TrackEvent : public ::protozero::Message {
- public:
-  using Decoder = TrackEvent_Decoder;
-  enum : int32_t {
-    kCategoryIidsFieldNumber = 3,
-    kCategoriesFieldNumber = 22,
-    kNameIidFieldNumber = 10,
-    kNameFieldNumber = 23,
-    kTypeFieldNumber = 9,
-    kTrackUuidFieldNumber = 11,
-    kCounterValueFieldNumber = 30,
-    kDoubleCounterValueFieldNumber = 44,
-    kExtraCounterTrackUuidsFieldNumber = 31,
-    kExtraCounterValuesFieldNumber = 12,
-    kExtraDoubleCounterTrackUuidsFieldNumber = 45,
-    kExtraDoubleCounterValuesFieldNumber = 46,
-    kFlowIdsFieldNumber = 36,
-    kTerminatingFlowIdsFieldNumber = 42,
-    kDebugAnnotationsFieldNumber = 4,
-    kTaskExecutionFieldNumber = 5,
-    kLogMessageFieldNumber = 21,
-    kCcSchedulerStateFieldNumber = 24,
-    kChromeUserEventFieldNumber = 25,
-    kChromeKeyedServiceFieldNumber = 26,
-    kChromeLegacyIpcFieldNumber = 27,
-    kChromeHistogramSampleFieldNumber = 28,
-    kChromeLatencyInfoFieldNumber = 29,
-    kChromeFrameReporterFieldNumber = 32,
-    kChromeApplicationStateInfoFieldNumber = 39,
-    kChromeRendererSchedulerStateFieldNumber = 40,
-    kChromeWindowHandleEventInfoFieldNumber = 41,
-    kChromeContentSettingsEventInfoFieldNumber = 43,
-    kSourceLocationFieldNumber = 33,
-    kSourceLocationIidFieldNumber = 34,
-    kChromeMessagePumpFieldNumber = 35,
-    kChromeMojoEventInfoFieldNumber = 38,
-    kTimestampDeltaUsFieldNumber = 1,
-    kTimestampAbsoluteUsFieldNumber = 16,
-    kThreadTimeDeltaUsFieldNumber = 2,
-    kThreadTimeAbsoluteUsFieldNumber = 17,
-    kThreadInstructionCountDeltaFieldNumber = 8,
-    kThreadInstructionCountAbsoluteFieldNumber = 20,
-    kLegacyEventFieldNumber = 6,
-  };
-  using LegacyEvent = ::perfetto::protos::pbzero::TrackEvent_LegacyEvent;
-  using Type = ::perfetto::protos::pbzero::TrackEvent_Type;
-  static const Type TYPE_UNSPECIFIED = TrackEvent_Type_TYPE_UNSPECIFIED;
-  static const Type TYPE_SLICE_BEGIN = TrackEvent_Type_TYPE_SLICE_BEGIN;
-  static const Type TYPE_SLICE_END = TrackEvent_Type_TYPE_SLICE_END;
-  static const Type TYPE_INSTANT = TrackEvent_Type_TYPE_INSTANT;
-  static const Type TYPE_COUNTER = TrackEvent_Type_TYPE_COUNTER;
-
-  using FieldMetadata_CategoryIids =
-    ::protozero::proto_utils::FieldMetadata<
-      3,
-      ::protozero::proto_utils::RepetitionType::kRepeatedNotPacked,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      TrackEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_CategoryIids kCategoryIids() { return {}; }
-  void add_category_iids(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_CategoryIids::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Categories =
-    ::protozero::proto_utils::FieldMetadata<
-      22,
-      ::protozero::proto_utils::RepetitionType::kRepeatedNotPacked,
-      ::protozero::proto_utils::ProtoSchemaType::kString,
-      std::string,
-      TrackEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Categories kCategories() { return {}; }
-  void add_categories(const char* data, size_t size) {
-    AppendBytes(FieldMetadata_Categories::kFieldId, data, size);
-  }
-  void add_categories(std::string value) {
-    static constexpr uint32_t field_id = FieldMetadata_Categories::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kString>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_NameIid =
-    ::protozero::proto_utils::FieldMetadata<
-      10,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      TrackEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_NameIid kNameIid() { return {}; }
-  void set_name_iid(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_NameIid::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Name =
-    ::protozero::proto_utils::FieldMetadata<
-      23,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kString,
-      std::string,
-      TrackEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Name kName() { return {}; }
-  void set_name(const char* data, size_t size) {
-    AppendBytes(FieldMetadata_Name::kFieldId, data, size);
-  }
-  void set_name(std::string value) {
-    static constexpr uint32_t field_id = FieldMetadata_Name::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kString>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Type =
-    ::protozero::proto_utils::FieldMetadata<
-      9,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kEnum,
-      ::perfetto::protos::pbzero::TrackEvent_Type,
-      TrackEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Type kType() { return {}; }
-  void set_type(::perfetto::protos::pbzero::TrackEvent_Type value) {
-    static constexpr uint32_t field_id = FieldMetadata_Type::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kEnum>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_TrackUuid =
-    ::protozero::proto_utils::FieldMetadata<
-      11,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      TrackEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_TrackUuid kTrackUuid() { return {}; }
-  void set_track_uuid(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_TrackUuid::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_CounterValue =
-    ::protozero::proto_utils::FieldMetadata<
-      30,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt64,
-      int64_t,
-      TrackEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_CounterValue kCounterValue() { return {}; }
-  void set_counter_value(int64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_CounterValue::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_DoubleCounterValue =
-    ::protozero::proto_utils::FieldMetadata<
-      44,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kDouble,
-      double,
-      TrackEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_DoubleCounterValue kDoubleCounterValue() { return {}; }
-  void set_double_counter_value(double value) {
-    static constexpr uint32_t field_id = FieldMetadata_DoubleCounterValue::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kDouble>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_ExtraCounterTrackUuids =
-    ::protozero::proto_utils::FieldMetadata<
-      31,
-      ::protozero::proto_utils::RepetitionType::kRepeatedNotPacked,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      TrackEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_ExtraCounterTrackUuids kExtraCounterTrackUuids() { return {}; }
-  void add_extra_counter_track_uuids(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_ExtraCounterTrackUuids::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_ExtraCounterValues =
-    ::protozero::proto_utils::FieldMetadata<
-      12,
-      ::protozero::proto_utils::RepetitionType::kRepeatedNotPacked,
-      ::protozero::proto_utils::ProtoSchemaType::kInt64,
-      int64_t,
-      TrackEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_ExtraCounterValues kExtraCounterValues() { return {}; }
-  void add_extra_counter_values(int64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_ExtraCounterValues::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_ExtraDoubleCounterTrackUuids =
-    ::protozero::proto_utils::FieldMetadata<
-      45,
-      ::protozero::proto_utils::RepetitionType::kRepeatedNotPacked,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      TrackEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_ExtraDoubleCounterTrackUuids kExtraDoubleCounterTrackUuids() { return {}; }
-  void add_extra_double_counter_track_uuids(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_ExtraDoubleCounterTrackUuids::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_ExtraDoubleCounterValues =
-    ::protozero::proto_utils::FieldMetadata<
-      46,
-      ::protozero::proto_utils::RepetitionType::kRepeatedNotPacked,
-      ::protozero::proto_utils::ProtoSchemaType::kDouble,
-      double,
-      TrackEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_ExtraDoubleCounterValues kExtraDoubleCounterValues() { return {}; }
-  void add_extra_double_counter_values(double value) {
-    static constexpr uint32_t field_id = FieldMetadata_ExtraDoubleCounterValues::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kDouble>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_FlowIds =
-    ::protozero::proto_utils::FieldMetadata<
-      36,
-      ::protozero::proto_utils::RepetitionType::kRepeatedNotPacked,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      TrackEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_FlowIds kFlowIds() { return {}; }
-  void add_flow_ids(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_FlowIds::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_TerminatingFlowIds =
-    ::protozero::proto_utils::FieldMetadata<
-      42,
-      ::protozero::proto_utils::RepetitionType::kRepeatedNotPacked,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      TrackEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_TerminatingFlowIds kTerminatingFlowIds() { return {}; }
-  void add_terminating_flow_ids(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_TerminatingFlowIds::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_DebugAnnotations =
-    ::protozero::proto_utils::FieldMetadata<
-      4,
-      ::protozero::proto_utils::RepetitionType::kRepeatedNotPacked,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      DebugAnnotation,
-      TrackEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_DebugAnnotations kDebugAnnotations() { return {}; }
-  template <typename T = DebugAnnotation> T* add_debug_annotations() {
-    return BeginNestedMessage<T>(4);
-  }
-
-
-  using FieldMetadata_TaskExecution =
-    ::protozero::proto_utils::FieldMetadata<
-      5,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      TaskExecution,
-      TrackEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_TaskExecution kTaskExecution() { return {}; }
-  template <typename T = TaskExecution> T* set_task_execution() {
-    return BeginNestedMessage<T>(5);
-  }
-
-
-  using FieldMetadata_LogMessage =
-    ::protozero::proto_utils::FieldMetadata<
-      21,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      LogMessage,
-      TrackEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_LogMessage kLogMessage() { return {}; }
-  template <typename T = LogMessage> T* set_log_message() {
-    return BeginNestedMessage<T>(21);
-  }
-
-
-  using FieldMetadata_CcSchedulerState =
-    ::protozero::proto_utils::FieldMetadata<
-      24,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      ChromeCompositorSchedulerState,
-      TrackEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_CcSchedulerState kCcSchedulerState() { return {}; }
-  template <typename T = ChromeCompositorSchedulerState> T* set_cc_scheduler_state() {
-    return BeginNestedMessage<T>(24);
-  }
-
-
-  using FieldMetadata_ChromeUserEvent =
-    ::protozero::proto_utils::FieldMetadata<
-      25,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      ChromeUserEvent,
-      TrackEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_ChromeUserEvent kChromeUserEvent() { return {}; }
-  template <typename T = ChromeUserEvent> T* set_chrome_user_event() {
-    return BeginNestedMessage<T>(25);
-  }
-
-
-  using FieldMetadata_ChromeKeyedService =
-    ::protozero::proto_utils::FieldMetadata<
-      26,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      ChromeKeyedService,
-      TrackEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_ChromeKeyedService kChromeKeyedService() { return {}; }
-  template <typename T = ChromeKeyedService> T* set_chrome_keyed_service() {
-    return BeginNestedMessage<T>(26);
-  }
-
-
-  using FieldMetadata_ChromeLegacyIpc =
-    ::protozero::proto_utils::FieldMetadata<
-      27,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      ChromeLegacyIpc,
-      TrackEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_ChromeLegacyIpc kChromeLegacyIpc() { return {}; }
-  template <typename T = ChromeLegacyIpc> T* set_chrome_legacy_ipc() {
-    return BeginNestedMessage<T>(27);
-  }
-
-
-  using FieldMetadata_ChromeHistogramSample =
-    ::protozero::proto_utils::FieldMetadata<
-      28,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      ChromeHistogramSample,
-      TrackEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_ChromeHistogramSample kChromeHistogramSample() { return {}; }
-  template <typename T = ChromeHistogramSample> T* set_chrome_histogram_sample() {
-    return BeginNestedMessage<T>(28);
-  }
-
-
-  using FieldMetadata_ChromeLatencyInfo =
-    ::protozero::proto_utils::FieldMetadata<
-      29,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      ChromeLatencyInfo,
-      TrackEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_ChromeLatencyInfo kChromeLatencyInfo() { return {}; }
-  template <typename T = ChromeLatencyInfo> T* set_chrome_latency_info() {
-    return BeginNestedMessage<T>(29);
-  }
-
-
-  using FieldMetadata_ChromeFrameReporter =
-    ::protozero::proto_utils::FieldMetadata<
-      32,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      ChromeFrameReporter,
-      TrackEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_ChromeFrameReporter kChromeFrameReporter() { return {}; }
-  template <typename T = ChromeFrameReporter> T* set_chrome_frame_reporter() {
-    return BeginNestedMessage<T>(32);
-  }
-
-
-  using FieldMetadata_ChromeApplicationStateInfo =
-    ::protozero::proto_utils::FieldMetadata<
-      39,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      ChromeApplicationStateInfo,
-      TrackEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_ChromeApplicationStateInfo kChromeApplicationStateInfo() { return {}; }
-  template <typename T = ChromeApplicationStateInfo> T* set_chrome_application_state_info() {
-    return BeginNestedMessage<T>(39);
-  }
-
-
-  using FieldMetadata_ChromeRendererSchedulerState =
-    ::protozero::proto_utils::FieldMetadata<
-      40,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      ChromeRendererSchedulerState,
-      TrackEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_ChromeRendererSchedulerState kChromeRendererSchedulerState() { return {}; }
-  template <typename T = ChromeRendererSchedulerState> T* set_chrome_renderer_scheduler_state() {
-    return BeginNestedMessage<T>(40);
-  }
-
-
-  using FieldMetadata_ChromeWindowHandleEventInfo =
-    ::protozero::proto_utils::FieldMetadata<
-      41,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      ChromeWindowHandleEventInfo,
-      TrackEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_ChromeWindowHandleEventInfo kChromeWindowHandleEventInfo() { return {}; }
-  template <typename T = ChromeWindowHandleEventInfo> T* set_chrome_window_handle_event_info() {
-    return BeginNestedMessage<T>(41);
-  }
-
-
-  using FieldMetadata_ChromeContentSettingsEventInfo =
-    ::protozero::proto_utils::FieldMetadata<
-      43,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      ChromeContentSettingsEventInfo,
-      TrackEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_ChromeContentSettingsEventInfo kChromeContentSettingsEventInfo() { return {}; }
-  template <typename T = ChromeContentSettingsEventInfo> T* set_chrome_content_settings_event_info() {
-    return BeginNestedMessage<T>(43);
-  }
-
-
-  using FieldMetadata_SourceLocation =
-    ::protozero::proto_utils::FieldMetadata<
-      33,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      SourceLocation,
-      TrackEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_SourceLocation kSourceLocation() { return {}; }
-  template <typename T = SourceLocation> T* set_source_location() {
-    return BeginNestedMessage<T>(33);
-  }
-
-
-  using FieldMetadata_SourceLocationIid =
-    ::protozero::proto_utils::FieldMetadata<
-      34,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      TrackEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_SourceLocationIid kSourceLocationIid() { return {}; }
-  void set_source_location_iid(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_SourceLocationIid::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_ChromeMessagePump =
-    ::protozero::proto_utils::FieldMetadata<
-      35,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      ChromeMessagePump,
-      TrackEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_ChromeMessagePump kChromeMessagePump() { return {}; }
-  template <typename T = ChromeMessagePump> T* set_chrome_message_pump() {
-    return BeginNestedMessage<T>(35);
-  }
-
-
-  using FieldMetadata_ChromeMojoEventInfo =
-    ::protozero::proto_utils::FieldMetadata<
-      38,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      ChromeMojoEventInfo,
-      TrackEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_ChromeMojoEventInfo kChromeMojoEventInfo() { return {}; }
-  template <typename T = ChromeMojoEventInfo> T* set_chrome_mojo_event_info() {
-    return BeginNestedMessage<T>(38);
-  }
-
-
-  using FieldMetadata_TimestampDeltaUs =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt64,
-      int64_t,
-      TrackEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_TimestampDeltaUs kTimestampDeltaUs() { return {}; }
-  void set_timestamp_delta_us(int64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_TimestampDeltaUs::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_TimestampAbsoluteUs =
-    ::protozero::proto_utils::FieldMetadata<
-      16,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt64,
-      int64_t,
-      TrackEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_TimestampAbsoluteUs kTimestampAbsoluteUs() { return {}; }
-  void set_timestamp_absolute_us(int64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_TimestampAbsoluteUs::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_ThreadTimeDeltaUs =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt64,
-      int64_t,
-      TrackEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_ThreadTimeDeltaUs kThreadTimeDeltaUs() { return {}; }
-  void set_thread_time_delta_us(int64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_ThreadTimeDeltaUs::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_ThreadTimeAbsoluteUs =
-    ::protozero::proto_utils::FieldMetadata<
-      17,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt64,
-      int64_t,
-      TrackEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_ThreadTimeAbsoluteUs kThreadTimeAbsoluteUs() { return {}; }
-  void set_thread_time_absolute_us(int64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_ThreadTimeAbsoluteUs::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_ThreadInstructionCountDelta =
-    ::protozero::proto_utils::FieldMetadata<
-      8,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt64,
-      int64_t,
-      TrackEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_ThreadInstructionCountDelta kThreadInstructionCountDelta() { return {}; }
-  void set_thread_instruction_count_delta(int64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_ThreadInstructionCountDelta::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_ThreadInstructionCountAbsolute =
-    ::protozero::proto_utils::FieldMetadata<
-      20,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt64,
-      int64_t,
-      TrackEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_ThreadInstructionCountAbsolute kThreadInstructionCountAbsolute() { return {}; }
-  void set_thread_instruction_count_absolute(int64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_ThreadInstructionCountAbsolute::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_LegacyEvent =
-    ::protozero::proto_utils::FieldMetadata<
-      6,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      TrackEvent_LegacyEvent,
-      TrackEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_LegacyEvent kLegacyEvent() { return {}; }
-  template <typename T = TrackEvent_LegacyEvent> T* set_legacy_event() {
-    return BeginNestedMessage<T>(6);
-  }
-
-};
-
-class TrackEvent_LegacyEvent_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/19, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  TrackEvent_LegacyEvent_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit TrackEvent_LegacyEvent_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit TrackEvent_LegacyEvent_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_name_iid() const { return at<1>().valid(); }
-  uint64_t name_iid() const { return at<1>().as_uint64(); }
-  bool has_phase() const { return at<2>().valid(); }
-  int32_t phase() const { return at<2>().as_int32(); }
-  bool has_duration_us() const { return at<3>().valid(); }
-  int64_t duration_us() const { return at<3>().as_int64(); }
-  bool has_thread_duration_us() const { return at<4>().valid(); }
-  int64_t thread_duration_us() const { return at<4>().as_int64(); }
-  bool has_thread_instruction_delta() const { return at<15>().valid(); }
-  int64_t thread_instruction_delta() const { return at<15>().as_int64(); }
-  bool has_unscoped_id() const { return at<6>().valid(); }
-  uint64_t unscoped_id() const { return at<6>().as_uint64(); }
-  bool has_local_id() const { return at<10>().valid(); }
-  uint64_t local_id() const { return at<10>().as_uint64(); }
-  bool has_global_id() const { return at<11>().valid(); }
-  uint64_t global_id() const { return at<11>().as_uint64(); }
-  bool has_id_scope() const { return at<7>().valid(); }
-  ::protozero::ConstChars id_scope() const { return at<7>().as_string(); }
-  bool has_use_async_tts() const { return at<9>().valid(); }
-  bool use_async_tts() const { return at<9>().as_bool(); }
-  bool has_bind_id() const { return at<8>().valid(); }
-  uint64_t bind_id() const { return at<8>().as_uint64(); }
-  bool has_bind_to_enclosing() const { return at<12>().valid(); }
-  bool bind_to_enclosing() const { return at<12>().as_bool(); }
-  bool has_flow_direction() const { return at<13>().valid(); }
-  int32_t flow_direction() const { return at<13>().as_int32(); }
-  bool has_instant_event_scope() const { return at<14>().valid(); }
-  int32_t instant_event_scope() const { return at<14>().as_int32(); }
-  bool has_pid_override() const { return at<18>().valid(); }
-  int32_t pid_override() const { return at<18>().as_int32(); }
-  bool has_tid_override() const { return at<19>().valid(); }
-  int32_t tid_override() const { return at<19>().as_int32(); }
-};
-
-class TrackEvent_LegacyEvent : public ::protozero::Message {
- public:
-  using Decoder = TrackEvent_LegacyEvent_Decoder;
-  enum : int32_t {
-    kNameIidFieldNumber = 1,
-    kPhaseFieldNumber = 2,
-    kDurationUsFieldNumber = 3,
-    kThreadDurationUsFieldNumber = 4,
-    kThreadInstructionDeltaFieldNumber = 15,
-    kUnscopedIdFieldNumber = 6,
-    kLocalIdFieldNumber = 10,
-    kGlobalIdFieldNumber = 11,
-    kIdScopeFieldNumber = 7,
-    kUseAsyncTtsFieldNumber = 9,
-    kBindIdFieldNumber = 8,
-    kBindToEnclosingFieldNumber = 12,
-    kFlowDirectionFieldNumber = 13,
-    kInstantEventScopeFieldNumber = 14,
-    kPidOverrideFieldNumber = 18,
-    kTidOverrideFieldNumber = 19,
-  };
-  using FlowDirection = ::perfetto::protos::pbzero::TrackEvent_LegacyEvent_FlowDirection;
-  using InstantEventScope = ::perfetto::protos::pbzero::TrackEvent_LegacyEvent_InstantEventScope;
-  static const FlowDirection FLOW_UNSPECIFIED = TrackEvent_LegacyEvent_FlowDirection_FLOW_UNSPECIFIED;
-  static const FlowDirection FLOW_IN = TrackEvent_LegacyEvent_FlowDirection_FLOW_IN;
-  static const FlowDirection FLOW_OUT = TrackEvent_LegacyEvent_FlowDirection_FLOW_OUT;
-  static const FlowDirection FLOW_INOUT = TrackEvent_LegacyEvent_FlowDirection_FLOW_INOUT;
-  static const InstantEventScope SCOPE_UNSPECIFIED = TrackEvent_LegacyEvent_InstantEventScope_SCOPE_UNSPECIFIED;
-  static const InstantEventScope SCOPE_GLOBAL = TrackEvent_LegacyEvent_InstantEventScope_SCOPE_GLOBAL;
-  static const InstantEventScope SCOPE_PROCESS = TrackEvent_LegacyEvent_InstantEventScope_SCOPE_PROCESS;
-  static const InstantEventScope SCOPE_THREAD = TrackEvent_LegacyEvent_InstantEventScope_SCOPE_THREAD;
-
-  using FieldMetadata_NameIid =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      TrackEvent_LegacyEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_NameIid kNameIid() { return {}; }
-  void set_name_iid(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_NameIid::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Phase =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt32,
-      int32_t,
-      TrackEvent_LegacyEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Phase kPhase() { return {}; }
-  void set_phase(int32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Phase::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_DurationUs =
-    ::protozero::proto_utils::FieldMetadata<
-      3,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt64,
-      int64_t,
-      TrackEvent_LegacyEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_DurationUs kDurationUs() { return {}; }
-  void set_duration_us(int64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_DurationUs::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_ThreadDurationUs =
-    ::protozero::proto_utils::FieldMetadata<
-      4,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt64,
-      int64_t,
-      TrackEvent_LegacyEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_ThreadDurationUs kThreadDurationUs() { return {}; }
-  void set_thread_duration_us(int64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_ThreadDurationUs::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_ThreadInstructionDelta =
-    ::protozero::proto_utils::FieldMetadata<
-      15,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt64,
-      int64_t,
-      TrackEvent_LegacyEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_ThreadInstructionDelta kThreadInstructionDelta() { return {}; }
-  void set_thread_instruction_delta(int64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_ThreadInstructionDelta::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_UnscopedId =
-    ::protozero::proto_utils::FieldMetadata<
-      6,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      TrackEvent_LegacyEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_UnscopedId kUnscopedId() { return {}; }
-  void set_unscoped_id(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_UnscopedId::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_LocalId =
-    ::protozero::proto_utils::FieldMetadata<
-      10,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      TrackEvent_LegacyEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_LocalId kLocalId() { return {}; }
-  void set_local_id(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_LocalId::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_GlobalId =
-    ::protozero::proto_utils::FieldMetadata<
-      11,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      TrackEvent_LegacyEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_GlobalId kGlobalId() { return {}; }
-  void set_global_id(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_GlobalId::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_IdScope =
-    ::protozero::proto_utils::FieldMetadata<
-      7,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kString,
-      std::string,
-      TrackEvent_LegacyEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_IdScope kIdScope() { return {}; }
-  void set_id_scope(const char* data, size_t size) {
-    AppendBytes(FieldMetadata_IdScope::kFieldId, data, size);
-  }
-  void set_id_scope(std::string value) {
-    static constexpr uint32_t field_id = FieldMetadata_IdScope::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kString>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_UseAsyncTts =
-    ::protozero::proto_utils::FieldMetadata<
-      9,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kBool,
-      bool,
-      TrackEvent_LegacyEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_UseAsyncTts kUseAsyncTts() { return {}; }
-  void set_use_async_tts(bool value) {
-    static constexpr uint32_t field_id = FieldMetadata_UseAsyncTts::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kBool>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_BindId =
-    ::protozero::proto_utils::FieldMetadata<
-      8,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      TrackEvent_LegacyEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_BindId kBindId() { return {}; }
-  void set_bind_id(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_BindId::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_BindToEnclosing =
-    ::protozero::proto_utils::FieldMetadata<
-      12,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kBool,
-      bool,
-      TrackEvent_LegacyEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_BindToEnclosing kBindToEnclosing() { return {}; }
-  void set_bind_to_enclosing(bool value) {
-    static constexpr uint32_t field_id = FieldMetadata_BindToEnclosing::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kBool>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_FlowDirection =
-    ::protozero::proto_utils::FieldMetadata<
-      13,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kEnum,
-      ::perfetto::protos::pbzero::TrackEvent_LegacyEvent_FlowDirection,
-      TrackEvent_LegacyEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_FlowDirection kFlowDirection() { return {}; }
-  void set_flow_direction(::perfetto::protos::pbzero::TrackEvent_LegacyEvent_FlowDirection value) {
-    static constexpr uint32_t field_id = FieldMetadata_FlowDirection::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kEnum>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_InstantEventScope =
-    ::protozero::proto_utils::FieldMetadata<
-      14,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kEnum,
-      ::perfetto::protos::pbzero::TrackEvent_LegacyEvent_InstantEventScope,
-      TrackEvent_LegacyEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_InstantEventScope kInstantEventScope() { return {}; }
-  void set_instant_event_scope(::perfetto::protos::pbzero::TrackEvent_LegacyEvent_InstantEventScope value) {
-    static constexpr uint32_t field_id = FieldMetadata_InstantEventScope::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kEnum>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_PidOverride =
-    ::protozero::proto_utils::FieldMetadata<
-      18,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt32,
-      int32_t,
-      TrackEvent_LegacyEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_PidOverride kPidOverride() { return {}; }
-  void set_pid_override(int32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_PidOverride::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_TidOverride =
-    ::protozero::proto_utils::FieldMetadata<
-      19,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt32,
-      int32_t,
-      TrackEvent_LegacyEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_TidOverride kTidOverride() { return {}; }
-  void set_tid_override(int32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_TidOverride::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt32>
-        ::Append(*this, field_id, value);
-  }
-};
-
-} // Namespace.
-} // Namespace.
-} // Namespace.
-#endif  // Include guard.
-// gen_amalgamated begin header: gen/protos/perfetto/trace/interned_data/interned_data.pbzero.h
-// Autogenerated by the ProtoZero compiler plugin. DO NOT EDIT.
-
-#ifndef PERFETTO_PROTOS_PROTOS_PERFETTO_TRACE_INTERNED_DATA_INTERNED_DATA_PROTO_H_
-#define PERFETTO_PROTOS_PROTOS_PERFETTO_TRACE_INTERNED_DATA_INTERNED_DATA_PROTO_H_
-
-#include <stddef.h>
-#include <stdint.h>
-
-// gen_amalgamated expanded: #include "perfetto/protozero/field_writer.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/message.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/packed_repeated_fields.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/proto_decoder.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/proto_utils.h"
-
-namespace perfetto {
-namespace protos {
-namespace pbzero {
-
-class Callstack;
-class DebugAnnotationName;
-class EventCategory;
-class EventName;
-class Frame;
-class HistogramName;
-class InternedGpuRenderStageSpecification;
-class InternedGraphicsContext;
-class InternedString;
-class LogMessageBody;
-class Mapping;
-class ProfiledFrameSymbols;
-class SourceLocation;
-
-class InternedData_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/26, /*HAS_NONPACKED_REPEATED_FIELDS=*/true> {
- public:
-  InternedData_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit InternedData_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit InternedData_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_event_categories() const { return at<1>().valid(); }
-  ::protozero::RepeatedFieldIterator<::protozero::ConstBytes> event_categories() const { return GetRepeated<::protozero::ConstBytes>(1); }
-  bool has_event_names() const { return at<2>().valid(); }
-  ::protozero::RepeatedFieldIterator<::protozero::ConstBytes> event_names() const { return GetRepeated<::protozero::ConstBytes>(2); }
-  bool has_debug_annotation_names() const { return at<3>().valid(); }
-  ::protozero::RepeatedFieldIterator<::protozero::ConstBytes> debug_annotation_names() const { return GetRepeated<::protozero::ConstBytes>(3); }
-  bool has_source_locations() const { return at<4>().valid(); }
-  ::protozero::RepeatedFieldIterator<::protozero::ConstBytes> source_locations() const { return GetRepeated<::protozero::ConstBytes>(4); }
-  bool has_log_message_body() const { return at<20>().valid(); }
-  ::protozero::RepeatedFieldIterator<::protozero::ConstBytes> log_message_body() const { return GetRepeated<::protozero::ConstBytes>(20); }
-  bool has_histogram_names() const { return at<25>().valid(); }
-  ::protozero::RepeatedFieldIterator<::protozero::ConstBytes> histogram_names() const { return GetRepeated<::protozero::ConstBytes>(25); }
-  bool has_build_ids() const { return at<16>().valid(); }
-  ::protozero::RepeatedFieldIterator<::protozero::ConstBytes> build_ids() const { return GetRepeated<::protozero::ConstBytes>(16); }
-  bool has_mapping_paths() const { return at<17>().valid(); }
-  ::protozero::RepeatedFieldIterator<::protozero::ConstBytes> mapping_paths() const { return GetRepeated<::protozero::ConstBytes>(17); }
-  bool has_source_paths() const { return at<18>().valid(); }
-  ::protozero::RepeatedFieldIterator<::protozero::ConstBytes> source_paths() const { return GetRepeated<::protozero::ConstBytes>(18); }
-  bool has_function_names() const { return at<5>().valid(); }
-  ::protozero::RepeatedFieldIterator<::protozero::ConstBytes> function_names() const { return GetRepeated<::protozero::ConstBytes>(5); }
-  bool has_profiled_frame_symbols() const { return at<21>().valid(); }
-  ::protozero::RepeatedFieldIterator<::protozero::ConstBytes> profiled_frame_symbols() const { return GetRepeated<::protozero::ConstBytes>(21); }
-  bool has_mappings() const { return at<19>().valid(); }
-  ::protozero::RepeatedFieldIterator<::protozero::ConstBytes> mappings() const { return GetRepeated<::protozero::ConstBytes>(19); }
-  bool has_frames() const { return at<6>().valid(); }
-  ::protozero::RepeatedFieldIterator<::protozero::ConstBytes> frames() const { return GetRepeated<::protozero::ConstBytes>(6); }
-  bool has_callstacks() const { return at<7>().valid(); }
-  ::protozero::RepeatedFieldIterator<::protozero::ConstBytes> callstacks() const { return GetRepeated<::protozero::ConstBytes>(7); }
-  bool has_vulkan_memory_keys() const { return at<22>().valid(); }
-  ::protozero::RepeatedFieldIterator<::protozero::ConstBytes> vulkan_memory_keys() const { return GetRepeated<::protozero::ConstBytes>(22); }
-  bool has_graphics_contexts() const { return at<23>().valid(); }
-  ::protozero::RepeatedFieldIterator<::protozero::ConstBytes> graphics_contexts() const { return GetRepeated<::protozero::ConstBytes>(23); }
-  bool has_gpu_specifications() const { return at<24>().valid(); }
-  ::protozero::RepeatedFieldIterator<::protozero::ConstBytes> gpu_specifications() const { return GetRepeated<::protozero::ConstBytes>(24); }
-  bool has_kernel_symbols() const { return at<26>().valid(); }
-  ::protozero::RepeatedFieldIterator<::protozero::ConstBytes> kernel_symbols() const { return GetRepeated<::protozero::ConstBytes>(26); }
-};
-
-class InternedData : public ::protozero::Message {
- public:
-  using Decoder = InternedData_Decoder;
-  enum : int32_t {
-    kEventCategoriesFieldNumber = 1,
-    kEventNamesFieldNumber = 2,
-    kDebugAnnotationNamesFieldNumber = 3,
-    kSourceLocationsFieldNumber = 4,
-    kLogMessageBodyFieldNumber = 20,
-    kHistogramNamesFieldNumber = 25,
-    kBuildIdsFieldNumber = 16,
-    kMappingPathsFieldNumber = 17,
-    kSourcePathsFieldNumber = 18,
-    kFunctionNamesFieldNumber = 5,
-    kProfiledFrameSymbolsFieldNumber = 21,
-    kMappingsFieldNumber = 19,
-    kFramesFieldNumber = 6,
-    kCallstacksFieldNumber = 7,
-    kVulkanMemoryKeysFieldNumber = 22,
-    kGraphicsContextsFieldNumber = 23,
-    kGpuSpecificationsFieldNumber = 24,
-    kKernelSymbolsFieldNumber = 26,
-  };
-
-  using FieldMetadata_EventCategories =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kRepeatedNotPacked,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      EventCategory,
-      InternedData>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_EventCategories kEventCategories() { return {}; }
-  template <typename T = EventCategory> T* add_event_categories() {
-    return BeginNestedMessage<T>(1);
-  }
-
-
-  using FieldMetadata_EventNames =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kRepeatedNotPacked,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      EventName,
-      InternedData>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_EventNames kEventNames() { return {}; }
-  template <typename T = EventName> T* add_event_names() {
-    return BeginNestedMessage<T>(2);
-  }
-
-
-  using FieldMetadata_DebugAnnotationNames =
-    ::protozero::proto_utils::FieldMetadata<
-      3,
-      ::protozero::proto_utils::RepetitionType::kRepeatedNotPacked,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      DebugAnnotationName,
-      InternedData>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_DebugAnnotationNames kDebugAnnotationNames() { return {}; }
-  template <typename T = DebugAnnotationName> T* add_debug_annotation_names() {
-    return BeginNestedMessage<T>(3);
-  }
-
-
-  using FieldMetadata_SourceLocations =
-    ::protozero::proto_utils::FieldMetadata<
-      4,
-      ::protozero::proto_utils::RepetitionType::kRepeatedNotPacked,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      SourceLocation,
-      InternedData>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_SourceLocations kSourceLocations() { return {}; }
-  template <typename T = SourceLocation> T* add_source_locations() {
-    return BeginNestedMessage<T>(4);
-  }
-
-
-  using FieldMetadata_LogMessageBody =
-    ::protozero::proto_utils::FieldMetadata<
-      20,
-      ::protozero::proto_utils::RepetitionType::kRepeatedNotPacked,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      LogMessageBody,
-      InternedData>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_LogMessageBody kLogMessageBody() { return {}; }
-  template <typename T = LogMessageBody> T* add_log_message_body() {
-    return BeginNestedMessage<T>(20);
-  }
-
-
-  using FieldMetadata_HistogramNames =
-    ::protozero::proto_utils::FieldMetadata<
-      25,
-      ::protozero::proto_utils::RepetitionType::kRepeatedNotPacked,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      HistogramName,
-      InternedData>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_HistogramNames kHistogramNames() { return {}; }
-  template <typename T = HistogramName> T* add_histogram_names() {
-    return BeginNestedMessage<T>(25);
-  }
-
-
-  using FieldMetadata_BuildIds =
-    ::protozero::proto_utils::FieldMetadata<
-      16,
-      ::protozero::proto_utils::RepetitionType::kRepeatedNotPacked,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      InternedString,
-      InternedData>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_BuildIds kBuildIds() { return {}; }
-  template <typename T = InternedString> T* add_build_ids() {
-    return BeginNestedMessage<T>(16);
-  }
-
-
-  using FieldMetadata_MappingPaths =
-    ::protozero::proto_utils::FieldMetadata<
-      17,
-      ::protozero::proto_utils::RepetitionType::kRepeatedNotPacked,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      InternedString,
-      InternedData>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_MappingPaths kMappingPaths() { return {}; }
-  template <typename T = InternedString> T* add_mapping_paths() {
-    return BeginNestedMessage<T>(17);
-  }
-
-
-  using FieldMetadata_SourcePaths =
-    ::protozero::proto_utils::FieldMetadata<
-      18,
-      ::protozero::proto_utils::RepetitionType::kRepeatedNotPacked,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      InternedString,
-      InternedData>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_SourcePaths kSourcePaths() { return {}; }
-  template <typename T = InternedString> T* add_source_paths() {
-    return BeginNestedMessage<T>(18);
-  }
-
-
-  using FieldMetadata_FunctionNames =
-    ::protozero::proto_utils::FieldMetadata<
-      5,
-      ::protozero::proto_utils::RepetitionType::kRepeatedNotPacked,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      InternedString,
-      InternedData>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_FunctionNames kFunctionNames() { return {}; }
-  template <typename T = InternedString> T* add_function_names() {
-    return BeginNestedMessage<T>(5);
-  }
-
-
-  using FieldMetadata_ProfiledFrameSymbols =
-    ::protozero::proto_utils::FieldMetadata<
-      21,
-      ::protozero::proto_utils::RepetitionType::kRepeatedNotPacked,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      ProfiledFrameSymbols,
-      InternedData>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_ProfiledFrameSymbols kProfiledFrameSymbols() { return {}; }
-  template <typename T = ProfiledFrameSymbols> T* add_profiled_frame_symbols() {
-    return BeginNestedMessage<T>(21);
-  }
-
-
-  using FieldMetadata_Mappings =
-    ::protozero::proto_utils::FieldMetadata<
-      19,
-      ::protozero::proto_utils::RepetitionType::kRepeatedNotPacked,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      Mapping,
-      InternedData>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Mappings kMappings() { return {}; }
-  template <typename T = Mapping> T* add_mappings() {
-    return BeginNestedMessage<T>(19);
-  }
-
-
-  using FieldMetadata_Frames =
-    ::protozero::proto_utils::FieldMetadata<
-      6,
-      ::protozero::proto_utils::RepetitionType::kRepeatedNotPacked,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      Frame,
-      InternedData>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Frames kFrames() { return {}; }
-  template <typename T = Frame> T* add_frames() {
-    return BeginNestedMessage<T>(6);
-  }
-
-
-  using FieldMetadata_Callstacks =
-    ::protozero::proto_utils::FieldMetadata<
-      7,
-      ::protozero::proto_utils::RepetitionType::kRepeatedNotPacked,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      Callstack,
-      InternedData>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Callstacks kCallstacks() { return {}; }
-  template <typename T = Callstack> T* add_callstacks() {
-    return BeginNestedMessage<T>(7);
-  }
-
-
-  using FieldMetadata_VulkanMemoryKeys =
-    ::protozero::proto_utils::FieldMetadata<
-      22,
-      ::protozero::proto_utils::RepetitionType::kRepeatedNotPacked,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      InternedString,
-      InternedData>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_VulkanMemoryKeys kVulkanMemoryKeys() { return {}; }
-  template <typename T = InternedString> T* add_vulkan_memory_keys() {
-    return BeginNestedMessage<T>(22);
-  }
-
-
-  using FieldMetadata_GraphicsContexts =
-    ::protozero::proto_utils::FieldMetadata<
-      23,
-      ::protozero::proto_utils::RepetitionType::kRepeatedNotPacked,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      InternedGraphicsContext,
-      InternedData>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_GraphicsContexts kGraphicsContexts() { return {}; }
-  template <typename T = InternedGraphicsContext> T* add_graphics_contexts() {
-    return BeginNestedMessage<T>(23);
-  }
-
-
-  using FieldMetadata_GpuSpecifications =
-    ::protozero::proto_utils::FieldMetadata<
-      24,
-      ::protozero::proto_utils::RepetitionType::kRepeatedNotPacked,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      InternedGpuRenderStageSpecification,
-      InternedData>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_GpuSpecifications kGpuSpecifications() { return {}; }
-  template <typename T = InternedGpuRenderStageSpecification> T* add_gpu_specifications() {
-    return BeginNestedMessage<T>(24);
-  }
-
-
-  using FieldMetadata_KernelSymbols =
-    ::protozero::proto_utils::FieldMetadata<
-      26,
-      ::protozero::proto_utils::RepetitionType::kRepeatedNotPacked,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      InternedString,
-      InternedData>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_KernelSymbols kKernelSymbols() { return {}; }
-  template <typename T = InternedString> T* add_kernel_symbols() {
-    return BeginNestedMessage<T>(26);
-  }
-
-};
-
-} // Namespace.
-} // Namespace.
-} // Namespace.
-#endif  // Include guard.
-// gen_amalgamated begin header: gen/protos/perfetto/trace/perfetto/perfetto_metatrace.pbzero.h
-// Autogenerated by the ProtoZero compiler plugin. DO NOT EDIT.
-
-#ifndef PERFETTO_PROTOS_PROTOS_PERFETTO_TRACE_PERFETTO_PERFETTO_METATRACE_PROTO_H_
-#define PERFETTO_PROTOS_PROTOS_PERFETTO_TRACE_PERFETTO_PERFETTO_METATRACE_PROTO_H_
-
-#include <stddef.h>
-#include <stdint.h>
-
-// gen_amalgamated expanded: #include "perfetto/protozero/field_writer.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/message.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/packed_repeated_fields.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/proto_decoder.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/proto_utils.h"
-
-namespace perfetto {
-namespace protos {
-namespace pbzero {
-
-class PerfettoMetatrace_Arg;
-
-class PerfettoMetatrace_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/9, /*HAS_NONPACKED_REPEATED_FIELDS=*/true> {
- public:
-  PerfettoMetatrace_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit PerfettoMetatrace_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit PerfettoMetatrace_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_event_id() const { return at<1>().valid(); }
-  uint32_t event_id() const { return at<1>().as_uint32(); }
-  bool has_counter_id() const { return at<2>().valid(); }
-  uint32_t counter_id() const { return at<2>().as_uint32(); }
-  bool has_event_name() const { return at<8>().valid(); }
-  ::protozero::ConstChars event_name() const { return at<8>().as_string(); }
-  bool has_counter_name() const { return at<9>().valid(); }
-  ::protozero::ConstChars counter_name() const { return at<9>().as_string(); }
-  bool has_event_duration_ns() const { return at<3>().valid(); }
-  uint32_t event_duration_ns() const { return at<3>().as_uint32(); }
-  bool has_counter_value() const { return at<4>().valid(); }
-  int32_t counter_value() const { return at<4>().as_int32(); }
-  bool has_thread_id() const { return at<5>().valid(); }
-  uint32_t thread_id() const { return at<5>().as_uint32(); }
-  bool has_has_overruns() const { return at<6>().valid(); }
-  bool has_overruns() const { return at<6>().as_bool(); }
-  bool has_args() const { return at<7>().valid(); }
-  ::protozero::RepeatedFieldIterator<::protozero::ConstBytes> args() const { return GetRepeated<::protozero::ConstBytes>(7); }
-};
-
-class PerfettoMetatrace : public ::protozero::Message {
- public:
-  using Decoder = PerfettoMetatrace_Decoder;
-  enum : int32_t {
-    kEventIdFieldNumber = 1,
-    kCounterIdFieldNumber = 2,
-    kEventNameFieldNumber = 8,
-    kCounterNameFieldNumber = 9,
-    kEventDurationNsFieldNumber = 3,
-    kCounterValueFieldNumber = 4,
-    kThreadIdFieldNumber = 5,
-    kHasOverrunsFieldNumber = 6,
-    kArgsFieldNumber = 7,
-  };
-  using Arg = ::perfetto::protos::pbzero::PerfettoMetatrace_Arg;
-
-  using FieldMetadata_EventId =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      PerfettoMetatrace>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_EventId kEventId() { return {}; }
-  void set_event_id(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_EventId::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_CounterId =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      PerfettoMetatrace>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_CounterId kCounterId() { return {}; }
-  void set_counter_id(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_CounterId::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_EventName =
-    ::protozero::proto_utils::FieldMetadata<
-      8,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kString,
-      std::string,
-      PerfettoMetatrace>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_EventName kEventName() { return {}; }
-  void set_event_name(const char* data, size_t size) {
-    AppendBytes(FieldMetadata_EventName::kFieldId, data, size);
-  }
-  void set_event_name(std::string value) {
-    static constexpr uint32_t field_id = FieldMetadata_EventName::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kString>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_CounterName =
-    ::protozero::proto_utils::FieldMetadata<
-      9,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kString,
-      std::string,
-      PerfettoMetatrace>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_CounterName kCounterName() { return {}; }
-  void set_counter_name(const char* data, size_t size) {
-    AppendBytes(FieldMetadata_CounterName::kFieldId, data, size);
-  }
-  void set_counter_name(std::string value) {
-    static constexpr uint32_t field_id = FieldMetadata_CounterName::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kString>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_EventDurationNs =
-    ::protozero::proto_utils::FieldMetadata<
-      3,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      PerfettoMetatrace>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_EventDurationNs kEventDurationNs() { return {}; }
-  void set_event_duration_ns(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_EventDurationNs::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_CounterValue =
-    ::protozero::proto_utils::FieldMetadata<
-      4,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt32,
-      int32_t,
-      PerfettoMetatrace>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_CounterValue kCounterValue() { return {}; }
-  void set_counter_value(int32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_CounterValue::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_ThreadId =
-    ::protozero::proto_utils::FieldMetadata<
-      5,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      PerfettoMetatrace>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_ThreadId kThreadId() { return {}; }
-  void set_thread_id(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_ThreadId::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_HasOverruns =
-    ::protozero::proto_utils::FieldMetadata<
-      6,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kBool,
-      bool,
-      PerfettoMetatrace>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_HasOverruns kHasOverruns() { return {}; }
-  void set_has_overruns(bool value) {
-    static constexpr uint32_t field_id = FieldMetadata_HasOverruns::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kBool>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Args =
-    ::protozero::proto_utils::FieldMetadata<
-      7,
-      ::protozero::proto_utils::RepetitionType::kRepeatedNotPacked,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      PerfettoMetatrace_Arg,
-      PerfettoMetatrace>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Args kArgs() { return {}; }
-  template <typename T = PerfettoMetatrace_Arg> T* add_args() {
-    return BeginNestedMessage<T>(7);
-  }
-
-};
-
-class PerfettoMetatrace_Arg_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/2, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  PerfettoMetatrace_Arg_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit PerfettoMetatrace_Arg_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit PerfettoMetatrace_Arg_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_key() const { return at<1>().valid(); }
-  ::protozero::ConstChars key() const { return at<1>().as_string(); }
-  bool has_value() const { return at<2>().valid(); }
-  ::protozero::ConstChars value() const { return at<2>().as_string(); }
-};
-
-class PerfettoMetatrace_Arg : public ::protozero::Message {
- public:
-  using Decoder = PerfettoMetatrace_Arg_Decoder;
-  enum : int32_t {
-    kKeyFieldNumber = 1,
-    kValueFieldNumber = 2,
-  };
-
-  using FieldMetadata_Key =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kString,
-      std::string,
-      PerfettoMetatrace_Arg>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Key kKey() { return {}; }
-  void set_key(const char* data, size_t size) {
-    AppendBytes(FieldMetadata_Key::kFieldId, data, size);
-  }
-  void set_key(std::string value) {
-    static constexpr uint32_t field_id = FieldMetadata_Key::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kString>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Value =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kString,
-      std::string,
-      PerfettoMetatrace_Arg>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Value kValue() { return {}; }
-  void set_value(const char* data, size_t size) {
-    AppendBytes(FieldMetadata_Value::kFieldId, data, size);
-  }
-  void set_value(std::string value) {
-    static constexpr uint32_t field_id = FieldMetadata_Value::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kString>
-        ::Append(*this, field_id, value);
-  }
-};
-
-} // Namespace.
-} // Namespace.
-} // Namespace.
-#endif  // Include guard.
-// gen_amalgamated begin header: gen/protos/perfetto/trace/perfetto/tracing_service_event.pbzero.h
-// Autogenerated by the ProtoZero compiler plugin. DO NOT EDIT.
-
-#ifndef PERFETTO_PROTOS_PROTOS_PERFETTO_TRACE_PERFETTO_TRACING_SERVICE_EVENT_PROTO_H_
-#define PERFETTO_PROTOS_PROTOS_PERFETTO_TRACE_PERFETTO_TRACING_SERVICE_EVENT_PROTO_H_
-
-#include <stddef.h>
-#include <stdint.h>
-
-// gen_amalgamated expanded: #include "perfetto/protozero/field_writer.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/message.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/packed_repeated_fields.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/proto_decoder.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/proto_utils.h"
-
-namespace perfetto {
-namespace protos {
-namespace pbzero {
-
-
-class TracingServiceEvent_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/6, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  TracingServiceEvent_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit TracingServiceEvent_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit TracingServiceEvent_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_tracing_started() const { return at<2>().valid(); }
-  bool tracing_started() const { return at<2>().as_bool(); }
-  bool has_all_data_sources_started() const { return at<1>().valid(); }
-  bool all_data_sources_started() const { return at<1>().as_bool(); }
-  bool has_all_data_sources_flushed() const { return at<3>().valid(); }
-  bool all_data_sources_flushed() const { return at<3>().as_bool(); }
-  bool has_read_tracing_buffers_completed() const { return at<4>().valid(); }
-  bool read_tracing_buffers_completed() const { return at<4>().as_bool(); }
-  bool has_tracing_disabled() const { return at<5>().valid(); }
-  bool tracing_disabled() const { return at<5>().as_bool(); }
-  bool has_seized_for_bugreport() const { return at<6>().valid(); }
-  bool seized_for_bugreport() const { return at<6>().as_bool(); }
-};
-
-class TracingServiceEvent : public ::protozero::Message {
- public:
-  using Decoder = TracingServiceEvent_Decoder;
-  enum : int32_t {
-    kTracingStartedFieldNumber = 2,
-    kAllDataSourcesStartedFieldNumber = 1,
-    kAllDataSourcesFlushedFieldNumber = 3,
-    kReadTracingBuffersCompletedFieldNumber = 4,
-    kTracingDisabledFieldNumber = 5,
-    kSeizedForBugreportFieldNumber = 6,
-  };
-
-  using FieldMetadata_TracingStarted =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kBool,
-      bool,
-      TracingServiceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_TracingStarted kTracingStarted() { return {}; }
-  void set_tracing_started(bool value) {
-    static constexpr uint32_t field_id = FieldMetadata_TracingStarted::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kBool>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_AllDataSourcesStarted =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kBool,
-      bool,
-      TracingServiceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_AllDataSourcesStarted kAllDataSourcesStarted() { return {}; }
-  void set_all_data_sources_started(bool value) {
-    static constexpr uint32_t field_id = FieldMetadata_AllDataSourcesStarted::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kBool>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_AllDataSourcesFlushed =
-    ::protozero::proto_utils::FieldMetadata<
-      3,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kBool,
-      bool,
-      TracingServiceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_AllDataSourcesFlushed kAllDataSourcesFlushed() { return {}; }
-  void set_all_data_sources_flushed(bool value) {
-    static constexpr uint32_t field_id = FieldMetadata_AllDataSourcesFlushed::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kBool>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_ReadTracingBuffersCompleted =
-    ::protozero::proto_utils::FieldMetadata<
-      4,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kBool,
-      bool,
-      TracingServiceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_ReadTracingBuffersCompleted kReadTracingBuffersCompleted() { return {}; }
-  void set_read_tracing_buffers_completed(bool value) {
-    static constexpr uint32_t field_id = FieldMetadata_ReadTracingBuffersCompleted::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kBool>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_TracingDisabled =
-    ::protozero::proto_utils::FieldMetadata<
-      5,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kBool,
-      bool,
-      TracingServiceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_TracingDisabled kTracingDisabled() { return {}; }
-  void set_tracing_disabled(bool value) {
-    static constexpr uint32_t field_id = FieldMetadata_TracingDisabled::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kBool>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_SeizedForBugreport =
-    ::protozero::proto_utils::FieldMetadata<
-      6,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kBool,
-      bool,
-      TracingServiceEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_SeizedForBugreport kSeizedForBugreport() { return {}; }
-  void set_seized_for_bugreport(bool value) {
-    static constexpr uint32_t field_id = FieldMetadata_SeizedForBugreport::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kBool>
-        ::Append(*this, field_id, value);
-  }
-};
-
-} // Namespace.
-} // Namespace.
-} // Namespace.
-#endif  // Include guard.
-// gen_amalgamated begin header: gen/protos/perfetto/trace/power/android_energy_estimation_breakdown.pbzero.h
-// Autogenerated by the ProtoZero compiler plugin. DO NOT EDIT.
-
-#ifndef PERFETTO_PROTOS_PROTOS_PERFETTO_TRACE_POWER_ANDROID_ENERGY_ESTIMATION_BREAKDOWN_PROTO_H_
-#define PERFETTO_PROTOS_PROTOS_PERFETTO_TRACE_POWER_ANDROID_ENERGY_ESTIMATION_BREAKDOWN_PROTO_H_
-
-#include <stddef.h>
-#include <stdint.h>
-
-// gen_amalgamated expanded: #include "perfetto/protozero/field_writer.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/message.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/packed_repeated_fields.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/proto_decoder.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/proto_utils.h"
-
-namespace perfetto {
-namespace protos {
-namespace pbzero {
-
-class AndroidEnergyConsumerDescriptor;
-class AndroidEnergyEstimationBreakdown_EnergyUidBreakdown;
-
-class AndroidEnergyEstimationBreakdown_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/4, /*HAS_NONPACKED_REPEATED_FIELDS=*/true> {
- public:
-  AndroidEnergyEstimationBreakdown_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit AndroidEnergyEstimationBreakdown_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit AndroidEnergyEstimationBreakdown_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_energy_consumer_descriptor() const { return at<1>().valid(); }
-  ::protozero::ConstBytes energy_consumer_descriptor() const { return at<1>().as_bytes(); }
-  bool has_energy_consumer_id() const { return at<2>().valid(); }
-  int32_t energy_consumer_id() const { return at<2>().as_int32(); }
-  bool has_energy_uws() const { return at<3>().valid(); }
-  int64_t energy_uws() const { return at<3>().as_int64(); }
-  bool has_per_uid_breakdown() const { return at<4>().valid(); }
-  ::protozero::RepeatedFieldIterator<::protozero::ConstBytes> per_uid_breakdown() const { return GetRepeated<::protozero::ConstBytes>(4); }
-};
-
-class AndroidEnergyEstimationBreakdown : public ::protozero::Message {
- public:
-  using Decoder = AndroidEnergyEstimationBreakdown_Decoder;
-  enum : int32_t {
-    kEnergyConsumerDescriptorFieldNumber = 1,
-    kEnergyConsumerIdFieldNumber = 2,
-    kEnergyUwsFieldNumber = 3,
-    kPerUidBreakdownFieldNumber = 4,
-  };
-  using EnergyUidBreakdown = ::perfetto::protos::pbzero::AndroidEnergyEstimationBreakdown_EnergyUidBreakdown;
-
-  using FieldMetadata_EnergyConsumerDescriptor =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      AndroidEnergyConsumerDescriptor,
-      AndroidEnergyEstimationBreakdown>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_EnergyConsumerDescriptor kEnergyConsumerDescriptor() { return {}; }
-  template <typename T = AndroidEnergyConsumerDescriptor> T* set_energy_consumer_descriptor() {
-    return BeginNestedMessage<T>(1);
-  }
-
-
-  using FieldMetadata_EnergyConsumerId =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt32,
-      int32_t,
-      AndroidEnergyEstimationBreakdown>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_EnergyConsumerId kEnergyConsumerId() { return {}; }
-  void set_energy_consumer_id(int32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_EnergyConsumerId::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_EnergyUws =
-    ::protozero::proto_utils::FieldMetadata<
-      3,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt64,
-      int64_t,
-      AndroidEnergyEstimationBreakdown>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_EnergyUws kEnergyUws() { return {}; }
-  void set_energy_uws(int64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_EnergyUws::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_PerUidBreakdown =
-    ::protozero::proto_utils::FieldMetadata<
-      4,
-      ::protozero::proto_utils::RepetitionType::kRepeatedNotPacked,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      AndroidEnergyEstimationBreakdown_EnergyUidBreakdown,
-      AndroidEnergyEstimationBreakdown>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_PerUidBreakdown kPerUidBreakdown() { return {}; }
-  template <typename T = AndroidEnergyEstimationBreakdown_EnergyUidBreakdown> T* add_per_uid_breakdown() {
-    return BeginNestedMessage<T>(4);
-  }
-
-};
-
-class AndroidEnergyEstimationBreakdown_EnergyUidBreakdown_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/2, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  AndroidEnergyEstimationBreakdown_EnergyUidBreakdown_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit AndroidEnergyEstimationBreakdown_EnergyUidBreakdown_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit AndroidEnergyEstimationBreakdown_EnergyUidBreakdown_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_uid() const { return at<1>().valid(); }
-  int32_t uid() const { return at<1>().as_int32(); }
-  bool has_energy_uws() const { return at<2>().valid(); }
-  int64_t energy_uws() const { return at<2>().as_int64(); }
-};
-
-class AndroidEnergyEstimationBreakdown_EnergyUidBreakdown : public ::protozero::Message {
- public:
-  using Decoder = AndroidEnergyEstimationBreakdown_EnergyUidBreakdown_Decoder;
-  enum : int32_t {
-    kUidFieldNumber = 1,
-    kEnergyUwsFieldNumber = 2,
-  };
-
-  using FieldMetadata_Uid =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt32,
-      int32_t,
-      AndroidEnergyEstimationBreakdown_EnergyUidBreakdown>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Uid kUid() { return {}; }
-  void set_uid(int32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Uid::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_EnergyUws =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt64,
-      int64_t,
-      AndroidEnergyEstimationBreakdown_EnergyUidBreakdown>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_EnergyUws kEnergyUws() { return {}; }
-  void set_energy_uws(int64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_EnergyUws::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt64>
-        ::Append(*this, field_id, value);
-  }
-};
-
-} // Namespace.
-} // Namespace.
-} // Namespace.
-#endif  // Include guard.
-// gen_amalgamated begin header: gen/protos/perfetto/trace/power/battery_counters.pbzero.h
-// Autogenerated by the ProtoZero compiler plugin. DO NOT EDIT.
-
-#ifndef PERFETTO_PROTOS_PROTOS_PERFETTO_TRACE_POWER_BATTERY_COUNTERS_PROTO_H_
-#define PERFETTO_PROTOS_PROTOS_PERFETTO_TRACE_POWER_BATTERY_COUNTERS_PROTO_H_
-
-#include <stddef.h>
-#include <stdint.h>
-
-// gen_amalgamated expanded: #include "perfetto/protozero/field_writer.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/message.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/packed_repeated_fields.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/proto_decoder.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/proto_utils.h"
-
-namespace perfetto {
-namespace protos {
-namespace pbzero {
-
-
-class BatteryCounters_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/4, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  BatteryCounters_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit BatteryCounters_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit BatteryCounters_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_charge_counter_uah() const { return at<1>().valid(); }
-  int64_t charge_counter_uah() const { return at<1>().as_int64(); }
-  bool has_capacity_percent() const { return at<2>().valid(); }
-  float capacity_percent() const { return at<2>().as_float(); }
-  bool has_current_ua() const { return at<3>().valid(); }
-  int64_t current_ua() const { return at<3>().as_int64(); }
-  bool has_current_avg_ua() const { return at<4>().valid(); }
-  int64_t current_avg_ua() const { return at<4>().as_int64(); }
-};
-
-class BatteryCounters : public ::protozero::Message {
- public:
-  using Decoder = BatteryCounters_Decoder;
-  enum : int32_t {
-    kChargeCounterUahFieldNumber = 1,
-    kCapacityPercentFieldNumber = 2,
-    kCurrentUaFieldNumber = 3,
-    kCurrentAvgUaFieldNumber = 4,
-  };
-
-  using FieldMetadata_ChargeCounterUah =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt64,
-      int64_t,
-      BatteryCounters>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_ChargeCounterUah kChargeCounterUah() { return {}; }
-  void set_charge_counter_uah(int64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_ChargeCounterUah::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_CapacityPercent =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kFloat,
-      float,
-      BatteryCounters>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_CapacityPercent kCapacityPercent() { return {}; }
-  void set_capacity_percent(float value) {
-    static constexpr uint32_t field_id = FieldMetadata_CapacityPercent::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kFloat>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_CurrentUa =
-    ::protozero::proto_utils::FieldMetadata<
-      3,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt64,
-      int64_t,
-      BatteryCounters>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_CurrentUa kCurrentUa() { return {}; }
-  void set_current_ua(int64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_CurrentUa::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_CurrentAvgUa =
-    ::protozero::proto_utils::FieldMetadata<
-      4,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt64,
-      int64_t,
-      BatteryCounters>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_CurrentAvgUa kCurrentAvgUa() { return {}; }
-  void set_current_avg_ua(int64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_CurrentAvgUa::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt64>
-        ::Append(*this, field_id, value);
-  }
-};
-
-} // Namespace.
-} // Namespace.
-} // Namespace.
-#endif  // Include guard.
-// gen_amalgamated begin header: gen/protos/perfetto/trace/power/power_rails.pbzero.h
-// Autogenerated by the ProtoZero compiler plugin. DO NOT EDIT.
-
-#ifndef PERFETTO_PROTOS_PROTOS_PERFETTO_TRACE_POWER_POWER_RAILS_PROTO_H_
-#define PERFETTO_PROTOS_PROTOS_PERFETTO_TRACE_POWER_POWER_RAILS_PROTO_H_
-
-#include <stddef.h>
-#include <stdint.h>
-
-// gen_amalgamated expanded: #include "perfetto/protozero/field_writer.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/message.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/packed_repeated_fields.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/proto_decoder.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/proto_utils.h"
-
-namespace perfetto {
-namespace protos {
-namespace pbzero {
-
-class PowerRails_EnergyData;
-class PowerRails_RailDescriptor;
-
-class PowerRails_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/2, /*HAS_NONPACKED_REPEATED_FIELDS=*/true> {
- public:
-  PowerRails_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit PowerRails_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit PowerRails_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_rail_descriptor() const { return at<1>().valid(); }
-  ::protozero::RepeatedFieldIterator<::protozero::ConstBytes> rail_descriptor() const { return GetRepeated<::protozero::ConstBytes>(1); }
-  bool has_energy_data() const { return at<2>().valid(); }
-  ::protozero::RepeatedFieldIterator<::protozero::ConstBytes> energy_data() const { return GetRepeated<::protozero::ConstBytes>(2); }
-};
-
-class PowerRails : public ::protozero::Message {
- public:
-  using Decoder = PowerRails_Decoder;
-  enum : int32_t {
-    kRailDescriptorFieldNumber = 1,
-    kEnergyDataFieldNumber = 2,
-  };
-  using RailDescriptor = ::perfetto::protos::pbzero::PowerRails_RailDescriptor;
-  using EnergyData = ::perfetto::protos::pbzero::PowerRails_EnergyData;
-
-  using FieldMetadata_RailDescriptor =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kRepeatedNotPacked,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      PowerRails_RailDescriptor,
-      PowerRails>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_RailDescriptor kRailDescriptor() { return {}; }
-  template <typename T = PowerRails_RailDescriptor> T* add_rail_descriptor() {
-    return BeginNestedMessage<T>(1);
-  }
-
-
-  using FieldMetadata_EnergyData =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kRepeatedNotPacked,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      PowerRails_EnergyData,
-      PowerRails>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_EnergyData kEnergyData() { return {}; }
-  template <typename T = PowerRails_EnergyData> T* add_energy_data() {
-    return BeginNestedMessage<T>(2);
-  }
-
-};
-
-class PowerRails_EnergyData_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/3, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  PowerRails_EnergyData_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit PowerRails_EnergyData_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit PowerRails_EnergyData_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_index() const { return at<1>().valid(); }
-  uint32_t index() const { return at<1>().as_uint32(); }
-  bool has_timestamp_ms() const { return at<2>().valid(); }
-  uint64_t timestamp_ms() const { return at<2>().as_uint64(); }
-  bool has_energy() const { return at<3>().valid(); }
-  uint64_t energy() const { return at<3>().as_uint64(); }
-};
-
-class PowerRails_EnergyData : public ::protozero::Message {
- public:
-  using Decoder = PowerRails_EnergyData_Decoder;
-  enum : int32_t {
-    kIndexFieldNumber = 1,
-    kTimestampMsFieldNumber = 2,
-    kEnergyFieldNumber = 3,
-  };
-
-  using FieldMetadata_Index =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      PowerRails_EnergyData>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Index kIndex() { return {}; }
-  void set_index(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Index::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_TimestampMs =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      PowerRails_EnergyData>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_TimestampMs kTimestampMs() { return {}; }
-  void set_timestamp_ms(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_TimestampMs::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Energy =
-    ::protozero::proto_utils::FieldMetadata<
-      3,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      PowerRails_EnergyData>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Energy kEnergy() { return {}; }
-  void set_energy(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Energy::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-};
-
-class PowerRails_RailDescriptor_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/4, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  PowerRails_RailDescriptor_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit PowerRails_RailDescriptor_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit PowerRails_RailDescriptor_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_index() const { return at<1>().valid(); }
-  uint32_t index() const { return at<1>().as_uint32(); }
-  bool has_rail_name() const { return at<2>().valid(); }
-  ::protozero::ConstChars rail_name() const { return at<2>().as_string(); }
-  bool has_subsys_name() const { return at<3>().valid(); }
-  ::protozero::ConstChars subsys_name() const { return at<3>().as_string(); }
-  bool has_sampling_rate() const { return at<4>().valid(); }
-  uint32_t sampling_rate() const { return at<4>().as_uint32(); }
-};
-
-class PowerRails_RailDescriptor : public ::protozero::Message {
- public:
-  using Decoder = PowerRails_RailDescriptor_Decoder;
-  enum : int32_t {
-    kIndexFieldNumber = 1,
-    kRailNameFieldNumber = 2,
-    kSubsysNameFieldNumber = 3,
-    kSamplingRateFieldNumber = 4,
-  };
-
-  using FieldMetadata_Index =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      PowerRails_RailDescriptor>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Index kIndex() { return {}; }
-  void set_index(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Index::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_RailName =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kString,
-      std::string,
-      PowerRails_RailDescriptor>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_RailName kRailName() { return {}; }
-  void set_rail_name(const char* data, size_t size) {
-    AppendBytes(FieldMetadata_RailName::kFieldId, data, size);
-  }
-  void set_rail_name(std::string value) {
-    static constexpr uint32_t field_id = FieldMetadata_RailName::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kString>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_SubsysName =
-    ::protozero::proto_utils::FieldMetadata<
-      3,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kString,
-      std::string,
-      PowerRails_RailDescriptor>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_SubsysName kSubsysName() { return {}; }
-  void set_subsys_name(const char* data, size_t size) {
-    AppendBytes(FieldMetadata_SubsysName::kFieldId, data, size);
-  }
-  void set_subsys_name(std::string value) {
-    static constexpr uint32_t field_id = FieldMetadata_SubsysName::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kString>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_SamplingRate =
-    ::protozero::proto_utils::FieldMetadata<
-      4,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      PowerRails_RailDescriptor>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_SamplingRate kSamplingRate() { return {}; }
-  void set_sampling_rate(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_SamplingRate::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-};
-
-} // Namespace.
-} // Namespace.
-} // Namespace.
-#endif  // Include guard.
-// gen_amalgamated begin header: gen/protos/perfetto/trace/ps/process_stats.pbzero.h
-// Autogenerated by the ProtoZero compiler plugin. DO NOT EDIT.
-
-#ifndef PERFETTO_PROTOS_PROTOS_PERFETTO_TRACE_PS_PROCESS_STATS_PROTO_H_
-#define PERFETTO_PROTOS_PROTOS_PERFETTO_TRACE_PS_PROCESS_STATS_PROTO_H_
-
-#include <stddef.h>
-#include <stdint.h>
-
-// gen_amalgamated expanded: #include "perfetto/protozero/field_writer.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/message.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/packed_repeated_fields.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/proto_decoder.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/proto_utils.h"
-
-namespace perfetto {
-namespace protos {
-namespace pbzero {
-
-class ProcessStats_Process;
-class ProcessStats_Thread;
-
-class ProcessStats_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/2, /*HAS_NONPACKED_REPEATED_FIELDS=*/true> {
- public:
-  ProcessStats_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit ProcessStats_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit ProcessStats_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_processes() const { return at<1>().valid(); }
-  ::protozero::RepeatedFieldIterator<::protozero::ConstBytes> processes() const { return GetRepeated<::protozero::ConstBytes>(1); }
-  bool has_collection_end_timestamp() const { return at<2>().valid(); }
-  uint64_t collection_end_timestamp() const { return at<2>().as_uint64(); }
-};
-
-class ProcessStats : public ::protozero::Message {
- public:
-  using Decoder = ProcessStats_Decoder;
-  enum : int32_t {
-    kProcessesFieldNumber = 1,
-    kCollectionEndTimestampFieldNumber = 2,
-  };
-  using Thread = ::perfetto::protos::pbzero::ProcessStats_Thread;
-  using Process = ::perfetto::protos::pbzero::ProcessStats_Process;
-
-  using FieldMetadata_Processes =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kRepeatedNotPacked,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      ProcessStats_Process,
-      ProcessStats>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Processes kProcesses() { return {}; }
-  template <typename T = ProcessStats_Process> T* add_processes() {
-    return BeginNestedMessage<T>(1);
-  }
-
-
-  using FieldMetadata_CollectionEndTimestamp =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      ProcessStats>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_CollectionEndTimestamp kCollectionEndTimestamp() { return {}; }
-  void set_collection_end_timestamp(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_CollectionEndTimestamp::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-};
-
-class ProcessStats_Process_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/14, /*HAS_NONPACKED_REPEATED_FIELDS=*/true> {
- public:
-  ProcessStats_Process_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit ProcessStats_Process_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit ProcessStats_Process_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_pid() const { return at<1>().valid(); }
-  int32_t pid() const { return at<1>().as_int32(); }
-  bool has_vm_size_kb() const { return at<2>().valid(); }
-  uint64_t vm_size_kb() const { return at<2>().as_uint64(); }
-  bool has_vm_rss_kb() const { return at<3>().valid(); }
-  uint64_t vm_rss_kb() const { return at<3>().as_uint64(); }
-  bool has_rss_anon_kb() const { return at<4>().valid(); }
-  uint64_t rss_anon_kb() const { return at<4>().as_uint64(); }
-  bool has_rss_file_kb() const { return at<5>().valid(); }
-  uint64_t rss_file_kb() const { return at<5>().as_uint64(); }
-  bool has_rss_shmem_kb() const { return at<6>().valid(); }
-  uint64_t rss_shmem_kb() const { return at<6>().as_uint64(); }
-  bool has_vm_swap_kb() const { return at<7>().valid(); }
-  uint64_t vm_swap_kb() const { return at<7>().as_uint64(); }
-  bool has_vm_locked_kb() const { return at<8>().valid(); }
-  uint64_t vm_locked_kb() const { return at<8>().as_uint64(); }
-  bool has_vm_hwm_kb() const { return at<9>().valid(); }
-  uint64_t vm_hwm_kb() const { return at<9>().as_uint64(); }
-  bool has_oom_score_adj() const { return at<10>().valid(); }
-  int64_t oom_score_adj() const { return at<10>().as_int64(); }
-  bool has_threads() const { return at<11>().valid(); }
-  ::protozero::RepeatedFieldIterator<::protozero::ConstBytes> threads() const { return GetRepeated<::protozero::ConstBytes>(11); }
-  bool has_is_peak_rss_resettable() const { return at<12>().valid(); }
-  bool is_peak_rss_resettable() const { return at<12>().as_bool(); }
-  bool has_chrome_private_footprint_kb() const { return at<13>().valid(); }
-  uint32_t chrome_private_footprint_kb() const { return at<13>().as_uint32(); }
-  bool has_chrome_peak_resident_set_kb() const { return at<14>().valid(); }
-  uint32_t chrome_peak_resident_set_kb() const { return at<14>().as_uint32(); }
-};
-
-class ProcessStats_Process : public ::protozero::Message {
- public:
-  using Decoder = ProcessStats_Process_Decoder;
-  enum : int32_t {
-    kPidFieldNumber = 1,
-    kVmSizeKbFieldNumber = 2,
-    kVmRssKbFieldNumber = 3,
-    kRssAnonKbFieldNumber = 4,
-    kRssFileKbFieldNumber = 5,
-    kRssShmemKbFieldNumber = 6,
-    kVmSwapKbFieldNumber = 7,
-    kVmLockedKbFieldNumber = 8,
-    kVmHwmKbFieldNumber = 9,
-    kOomScoreAdjFieldNumber = 10,
-    kThreadsFieldNumber = 11,
-    kIsPeakRssResettableFieldNumber = 12,
-    kChromePrivateFootprintKbFieldNumber = 13,
-    kChromePeakResidentSetKbFieldNumber = 14,
-  };
-
-  using FieldMetadata_Pid =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt32,
-      int32_t,
-      ProcessStats_Process>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Pid kPid() { return {}; }
-  void set_pid(int32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Pid::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_VmSizeKb =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      ProcessStats_Process>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_VmSizeKb kVmSizeKb() { return {}; }
-  void set_vm_size_kb(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_VmSizeKb::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_VmRssKb =
-    ::protozero::proto_utils::FieldMetadata<
-      3,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      ProcessStats_Process>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_VmRssKb kVmRssKb() { return {}; }
-  void set_vm_rss_kb(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_VmRssKb::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_RssAnonKb =
-    ::protozero::proto_utils::FieldMetadata<
-      4,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      ProcessStats_Process>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_RssAnonKb kRssAnonKb() { return {}; }
-  void set_rss_anon_kb(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_RssAnonKb::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_RssFileKb =
-    ::protozero::proto_utils::FieldMetadata<
-      5,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      ProcessStats_Process>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_RssFileKb kRssFileKb() { return {}; }
-  void set_rss_file_kb(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_RssFileKb::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_RssShmemKb =
-    ::protozero::proto_utils::FieldMetadata<
-      6,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      ProcessStats_Process>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_RssShmemKb kRssShmemKb() { return {}; }
-  void set_rss_shmem_kb(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_RssShmemKb::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_VmSwapKb =
-    ::protozero::proto_utils::FieldMetadata<
-      7,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      ProcessStats_Process>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_VmSwapKb kVmSwapKb() { return {}; }
-  void set_vm_swap_kb(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_VmSwapKb::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_VmLockedKb =
-    ::protozero::proto_utils::FieldMetadata<
-      8,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      ProcessStats_Process>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_VmLockedKb kVmLockedKb() { return {}; }
-  void set_vm_locked_kb(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_VmLockedKb::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_VmHwmKb =
-    ::protozero::proto_utils::FieldMetadata<
-      9,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      ProcessStats_Process>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_VmHwmKb kVmHwmKb() { return {}; }
-  void set_vm_hwm_kb(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_VmHwmKb::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_OomScoreAdj =
-    ::protozero::proto_utils::FieldMetadata<
-      10,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt64,
-      int64_t,
-      ProcessStats_Process>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_OomScoreAdj kOomScoreAdj() { return {}; }
-  void set_oom_score_adj(int64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_OomScoreAdj::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Threads =
-    ::protozero::proto_utils::FieldMetadata<
-      11,
-      ::protozero::proto_utils::RepetitionType::kRepeatedNotPacked,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      ProcessStats_Thread,
-      ProcessStats_Process>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Threads kThreads() { return {}; }
-  template <typename T = ProcessStats_Thread> T* add_threads() {
-    return BeginNestedMessage<T>(11);
-  }
-
-
-  using FieldMetadata_IsPeakRssResettable =
-    ::protozero::proto_utils::FieldMetadata<
-      12,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kBool,
-      bool,
-      ProcessStats_Process>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_IsPeakRssResettable kIsPeakRssResettable() { return {}; }
-  void set_is_peak_rss_resettable(bool value) {
-    static constexpr uint32_t field_id = FieldMetadata_IsPeakRssResettable::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kBool>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_ChromePrivateFootprintKb =
-    ::protozero::proto_utils::FieldMetadata<
-      13,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      ProcessStats_Process>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_ChromePrivateFootprintKb kChromePrivateFootprintKb() { return {}; }
-  void set_chrome_private_footprint_kb(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_ChromePrivateFootprintKb::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_ChromePeakResidentSetKb =
-    ::protozero::proto_utils::FieldMetadata<
-      14,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      ProcessStats_Process>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_ChromePeakResidentSetKb kChromePeakResidentSetKb() { return {}; }
-  void set_chrome_peak_resident_set_kb(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_ChromePeakResidentSetKb::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-};
-
-class ProcessStats_Thread_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/4, /*HAS_NONPACKED_REPEATED_FIELDS=*/true> {
- public:
-  ProcessStats_Thread_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit ProcessStats_Thread_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit ProcessStats_Thread_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_tid() const { return at<1>().valid(); }
-  int32_t tid() const { return at<1>().as_int32(); }
-  bool has_cpu_freq_indices() const { return at<2>().valid(); }
-  ::protozero::RepeatedFieldIterator<uint32_t> cpu_freq_indices() const { return GetRepeated<uint32_t>(2); }
-  bool has_cpu_freq_ticks() const { return at<3>().valid(); }
-  ::protozero::RepeatedFieldIterator<uint64_t> cpu_freq_ticks() const { return GetRepeated<uint64_t>(3); }
-  bool has_cpu_freq_full() const { return at<4>().valid(); }
-  bool cpu_freq_full() const { return at<4>().as_bool(); }
-};
-
-class ProcessStats_Thread : public ::protozero::Message {
- public:
-  using Decoder = ProcessStats_Thread_Decoder;
-  enum : int32_t {
-    kTidFieldNumber = 1,
-    kCpuFreqIndicesFieldNumber = 2,
-    kCpuFreqTicksFieldNumber = 3,
-    kCpuFreqFullFieldNumber = 4,
-  };
-
-  using FieldMetadata_Tid =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt32,
-      int32_t,
-      ProcessStats_Thread>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Tid kTid() { return {}; }
-  void set_tid(int32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Tid::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_CpuFreqIndices =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kRepeatedNotPacked,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      ProcessStats_Thread>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_CpuFreqIndices kCpuFreqIndices() { return {}; }
-  void add_cpu_freq_indices(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_CpuFreqIndices::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_CpuFreqTicks =
-    ::protozero::proto_utils::FieldMetadata<
-      3,
-      ::protozero::proto_utils::RepetitionType::kRepeatedNotPacked,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      ProcessStats_Thread>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_CpuFreqTicks kCpuFreqTicks() { return {}; }
-  void add_cpu_freq_ticks(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_CpuFreqTicks::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_CpuFreqFull =
-    ::protozero::proto_utils::FieldMetadata<
-      4,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kBool,
-      bool,
-      ProcessStats_Thread>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_CpuFreqFull kCpuFreqFull() { return {}; }
-  void set_cpu_freq_full(bool value) {
-    static constexpr uint32_t field_id = FieldMetadata_CpuFreqFull::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kBool>
-        ::Append(*this, field_id, value);
-  }
-};
-
-} // Namespace.
-} // Namespace.
-} // Namespace.
-#endif  // Include guard.
-// gen_amalgamated begin header: gen/protos/perfetto/trace/ps/process_tree.pbzero.h
-// Autogenerated by the ProtoZero compiler plugin. DO NOT EDIT.
-
-#ifndef PERFETTO_PROTOS_PROTOS_PERFETTO_TRACE_PS_PROCESS_TREE_PROTO_H_
-#define PERFETTO_PROTOS_PROTOS_PERFETTO_TRACE_PS_PROCESS_TREE_PROTO_H_
-
-#include <stddef.h>
-#include <stdint.h>
-
-// gen_amalgamated expanded: #include "perfetto/protozero/field_writer.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/message.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/packed_repeated_fields.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/proto_decoder.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/proto_utils.h"
-
-namespace perfetto {
-namespace protos {
-namespace pbzero {
-
-class ProcessTree_Process;
-class ProcessTree_Thread;
-
-class ProcessTree_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/3, /*HAS_NONPACKED_REPEATED_FIELDS=*/true> {
- public:
-  ProcessTree_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit ProcessTree_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit ProcessTree_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_processes() const { return at<1>().valid(); }
-  ::protozero::RepeatedFieldIterator<::protozero::ConstBytes> processes() const { return GetRepeated<::protozero::ConstBytes>(1); }
-  bool has_threads() const { return at<2>().valid(); }
-  ::protozero::RepeatedFieldIterator<::protozero::ConstBytes> threads() const { return GetRepeated<::protozero::ConstBytes>(2); }
-  bool has_collection_end_timestamp() const { return at<3>().valid(); }
-  uint64_t collection_end_timestamp() const { return at<3>().as_uint64(); }
-};
-
-class ProcessTree : public ::protozero::Message {
- public:
-  using Decoder = ProcessTree_Decoder;
-  enum : int32_t {
-    kProcessesFieldNumber = 1,
-    kThreadsFieldNumber = 2,
-    kCollectionEndTimestampFieldNumber = 3,
-  };
-  using Thread = ::perfetto::protos::pbzero::ProcessTree_Thread;
-  using Process = ::perfetto::protos::pbzero::ProcessTree_Process;
-
-  using FieldMetadata_Processes =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kRepeatedNotPacked,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      ProcessTree_Process,
-      ProcessTree>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Processes kProcesses() { return {}; }
-  template <typename T = ProcessTree_Process> T* add_processes() {
-    return BeginNestedMessage<T>(1);
-  }
-
-
-  using FieldMetadata_Threads =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kRepeatedNotPacked,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      ProcessTree_Thread,
-      ProcessTree>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Threads kThreads() { return {}; }
-  template <typename T = ProcessTree_Thread> T* add_threads() {
-    return BeginNestedMessage<T>(2);
-  }
-
-
-  using FieldMetadata_CollectionEndTimestamp =
-    ::protozero::proto_utils::FieldMetadata<
-      3,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      ProcessTree>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_CollectionEndTimestamp kCollectionEndTimestamp() { return {}; }
-  void set_collection_end_timestamp(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_CollectionEndTimestamp::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-};
-
-class ProcessTree_Process_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/5, /*HAS_NONPACKED_REPEATED_FIELDS=*/true> {
- public:
-  ProcessTree_Process_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit ProcessTree_Process_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit ProcessTree_Process_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_pid() const { return at<1>().valid(); }
-  int32_t pid() const { return at<1>().as_int32(); }
-  bool has_ppid() const { return at<2>().valid(); }
-  int32_t ppid() const { return at<2>().as_int32(); }
-  bool has_cmdline() const { return at<3>().valid(); }
-  ::protozero::RepeatedFieldIterator<::protozero::ConstChars> cmdline() const { return GetRepeated<::protozero::ConstChars>(3); }
-  bool has_threads_deprecated() const { return at<4>().valid(); }
-  ::protozero::RepeatedFieldIterator<::protozero::ConstBytes> threads_deprecated() const { return GetRepeated<::protozero::ConstBytes>(4); }
-  bool has_uid() const { return at<5>().valid(); }
-  int32_t uid() const { return at<5>().as_int32(); }
-};
-
-class ProcessTree_Process : public ::protozero::Message {
- public:
-  using Decoder = ProcessTree_Process_Decoder;
-  enum : int32_t {
-    kPidFieldNumber = 1,
-    kPpidFieldNumber = 2,
-    kCmdlineFieldNumber = 3,
-    kThreadsDeprecatedFieldNumber = 4,
-    kUidFieldNumber = 5,
-  };
-
-  using FieldMetadata_Pid =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt32,
-      int32_t,
-      ProcessTree_Process>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Pid kPid() { return {}; }
-  void set_pid(int32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Pid::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Ppid =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt32,
-      int32_t,
-      ProcessTree_Process>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Ppid kPpid() { return {}; }
-  void set_ppid(int32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Ppid::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Cmdline =
-    ::protozero::proto_utils::FieldMetadata<
-      3,
-      ::protozero::proto_utils::RepetitionType::kRepeatedNotPacked,
-      ::protozero::proto_utils::ProtoSchemaType::kString,
-      std::string,
-      ProcessTree_Process>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Cmdline kCmdline() { return {}; }
-  void add_cmdline(const char* data, size_t size) {
-    AppendBytes(FieldMetadata_Cmdline::kFieldId, data, size);
-  }
-  void add_cmdline(std::string value) {
-    static constexpr uint32_t field_id = FieldMetadata_Cmdline::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kString>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_ThreadsDeprecated =
-    ::protozero::proto_utils::FieldMetadata<
-      4,
-      ::protozero::proto_utils::RepetitionType::kRepeatedNotPacked,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      ProcessTree_Thread,
-      ProcessTree_Process>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_ThreadsDeprecated kThreadsDeprecated() { return {}; }
-  template <typename T = ProcessTree_Thread> T* add_threads_deprecated() {
-    return BeginNestedMessage<T>(4);
-  }
-
-
-  using FieldMetadata_Uid =
-    ::protozero::proto_utils::FieldMetadata<
-      5,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt32,
-      int32_t,
-      ProcessTree_Process>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Uid kUid() { return {}; }
-  void set_uid(int32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Uid::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt32>
-        ::Append(*this, field_id, value);
-  }
-};
-
-class ProcessTree_Thread_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/3, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  ProcessTree_Thread_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit ProcessTree_Thread_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit ProcessTree_Thread_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_tid() const { return at<1>().valid(); }
-  int32_t tid() const { return at<1>().as_int32(); }
-  bool has_tgid() const { return at<3>().valid(); }
-  int32_t tgid() const { return at<3>().as_int32(); }
-  bool has_name() const { return at<2>().valid(); }
-  ::protozero::ConstChars name() const { return at<2>().as_string(); }
-};
-
-class ProcessTree_Thread : public ::protozero::Message {
- public:
-  using Decoder = ProcessTree_Thread_Decoder;
-  enum : int32_t {
-    kTidFieldNumber = 1,
-    kTgidFieldNumber = 3,
-    kNameFieldNumber = 2,
-  };
-
-  using FieldMetadata_Tid =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt32,
-      int32_t,
-      ProcessTree_Thread>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Tid kTid() { return {}; }
-  void set_tid(int32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Tid::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Tgid =
-    ::protozero::proto_utils::FieldMetadata<
-      3,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt32,
-      int32_t,
-      ProcessTree_Thread>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Tgid kTgid() { return {}; }
-  void set_tgid(int32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Tgid::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Name =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kString,
-      std::string,
-      ProcessTree_Thread>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Name kName() { return {}; }
-  void set_name(const char* data, size_t size) {
-    AppendBytes(FieldMetadata_Name::kFieldId, data, size);
-  }
-  void set_name(std::string value) {
-    static constexpr uint32_t field_id = FieldMetadata_Name::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kString>
-        ::Append(*this, field_id, value);
-  }
-};
-
-} // Namespace.
-} // Namespace.
-} // Namespace.
-#endif  // Include guard.
-// gen_amalgamated begin header: gen/protos/perfetto/trace/sys_stats/sys_stats.pbzero.h
-// Autogenerated by the ProtoZero compiler plugin. DO NOT EDIT.
-
-#ifndef PERFETTO_PROTOS_PROTOS_PERFETTO_TRACE_SYS_STATS_SYS_STATS_PROTO_H_
-#define PERFETTO_PROTOS_PROTOS_PERFETTO_TRACE_SYS_STATS_SYS_STATS_PROTO_H_
-
-#include <stddef.h>
-#include <stdint.h>
-
-// gen_amalgamated expanded: #include "perfetto/protozero/field_writer.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/message.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/packed_repeated_fields.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/proto_decoder.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/proto_utils.h"
-
-namespace perfetto {
-namespace protos {
-namespace pbzero {
-
-class SysStats_CpuTimes;
-class SysStats_DevfreqValue;
-class SysStats_InterruptCount;
-class SysStats_MeminfoValue;
-class SysStats_VmstatValue;
-enum MeminfoCounters : int32_t;
-enum VmstatCounters : int32_t;
-
-class SysStats_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/10, /*HAS_NONPACKED_REPEATED_FIELDS=*/true> {
- public:
-  SysStats_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit SysStats_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit SysStats_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_meminfo() const { return at<1>().valid(); }
-  ::protozero::RepeatedFieldIterator<::protozero::ConstBytes> meminfo() const { return GetRepeated<::protozero::ConstBytes>(1); }
-  bool has_vmstat() const { return at<2>().valid(); }
-  ::protozero::RepeatedFieldIterator<::protozero::ConstBytes> vmstat() const { return GetRepeated<::protozero::ConstBytes>(2); }
-  bool has_cpu_stat() const { return at<3>().valid(); }
-  ::protozero::RepeatedFieldIterator<::protozero::ConstBytes> cpu_stat() const { return GetRepeated<::protozero::ConstBytes>(3); }
-  bool has_num_forks() const { return at<4>().valid(); }
-  uint64_t num_forks() const { return at<4>().as_uint64(); }
-  bool has_num_irq_total() const { return at<5>().valid(); }
-  uint64_t num_irq_total() const { return at<5>().as_uint64(); }
-  bool has_num_irq() const { return at<6>().valid(); }
-  ::protozero::RepeatedFieldIterator<::protozero::ConstBytes> num_irq() const { return GetRepeated<::protozero::ConstBytes>(6); }
-  bool has_num_softirq_total() const { return at<7>().valid(); }
-  uint64_t num_softirq_total() const { return at<7>().as_uint64(); }
-  bool has_num_softirq() const { return at<8>().valid(); }
-  ::protozero::RepeatedFieldIterator<::protozero::ConstBytes> num_softirq() const { return GetRepeated<::protozero::ConstBytes>(8); }
-  bool has_collection_end_timestamp() const { return at<9>().valid(); }
-  uint64_t collection_end_timestamp() const { return at<9>().as_uint64(); }
-  bool has_devfreq() const { return at<10>().valid(); }
-  ::protozero::RepeatedFieldIterator<::protozero::ConstBytes> devfreq() const { return GetRepeated<::protozero::ConstBytes>(10); }
-};
-
-class SysStats : public ::protozero::Message {
- public:
-  using Decoder = SysStats_Decoder;
-  enum : int32_t {
-    kMeminfoFieldNumber = 1,
-    kVmstatFieldNumber = 2,
-    kCpuStatFieldNumber = 3,
-    kNumForksFieldNumber = 4,
-    kNumIrqTotalFieldNumber = 5,
-    kNumIrqFieldNumber = 6,
-    kNumSoftirqTotalFieldNumber = 7,
-    kNumSoftirqFieldNumber = 8,
-    kCollectionEndTimestampFieldNumber = 9,
-    kDevfreqFieldNumber = 10,
-  };
-  using MeminfoValue = ::perfetto::protos::pbzero::SysStats_MeminfoValue;
-  using VmstatValue = ::perfetto::protos::pbzero::SysStats_VmstatValue;
-  using CpuTimes = ::perfetto::protos::pbzero::SysStats_CpuTimes;
-  using InterruptCount = ::perfetto::protos::pbzero::SysStats_InterruptCount;
-  using DevfreqValue = ::perfetto::protos::pbzero::SysStats_DevfreqValue;
-
-  using FieldMetadata_Meminfo =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kRepeatedNotPacked,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      SysStats_MeminfoValue,
-      SysStats>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Meminfo kMeminfo() { return {}; }
-  template <typename T = SysStats_MeminfoValue> T* add_meminfo() {
-    return BeginNestedMessage<T>(1);
-  }
-
-
-  using FieldMetadata_Vmstat =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kRepeatedNotPacked,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      SysStats_VmstatValue,
-      SysStats>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Vmstat kVmstat() { return {}; }
-  template <typename T = SysStats_VmstatValue> T* add_vmstat() {
-    return BeginNestedMessage<T>(2);
-  }
-
-
-  using FieldMetadata_CpuStat =
-    ::protozero::proto_utils::FieldMetadata<
-      3,
-      ::protozero::proto_utils::RepetitionType::kRepeatedNotPacked,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      SysStats_CpuTimes,
-      SysStats>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_CpuStat kCpuStat() { return {}; }
-  template <typename T = SysStats_CpuTimes> T* add_cpu_stat() {
-    return BeginNestedMessage<T>(3);
-  }
-
-
-  using FieldMetadata_NumForks =
-    ::protozero::proto_utils::FieldMetadata<
-      4,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      SysStats>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_NumForks kNumForks() { return {}; }
-  void set_num_forks(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_NumForks::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_NumIrqTotal =
-    ::protozero::proto_utils::FieldMetadata<
-      5,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      SysStats>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_NumIrqTotal kNumIrqTotal() { return {}; }
-  void set_num_irq_total(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_NumIrqTotal::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_NumIrq =
-    ::protozero::proto_utils::FieldMetadata<
-      6,
-      ::protozero::proto_utils::RepetitionType::kRepeatedNotPacked,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      SysStats_InterruptCount,
-      SysStats>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_NumIrq kNumIrq() { return {}; }
-  template <typename T = SysStats_InterruptCount> T* add_num_irq() {
-    return BeginNestedMessage<T>(6);
-  }
-
-
-  using FieldMetadata_NumSoftirqTotal =
-    ::protozero::proto_utils::FieldMetadata<
-      7,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      SysStats>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_NumSoftirqTotal kNumSoftirqTotal() { return {}; }
-  void set_num_softirq_total(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_NumSoftirqTotal::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_NumSoftirq =
-    ::protozero::proto_utils::FieldMetadata<
-      8,
-      ::protozero::proto_utils::RepetitionType::kRepeatedNotPacked,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      SysStats_InterruptCount,
-      SysStats>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_NumSoftirq kNumSoftirq() { return {}; }
-  template <typename T = SysStats_InterruptCount> T* add_num_softirq() {
-    return BeginNestedMessage<T>(8);
-  }
-
-
-  using FieldMetadata_CollectionEndTimestamp =
-    ::protozero::proto_utils::FieldMetadata<
-      9,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      SysStats>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_CollectionEndTimestamp kCollectionEndTimestamp() { return {}; }
-  void set_collection_end_timestamp(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_CollectionEndTimestamp::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Devfreq =
-    ::protozero::proto_utils::FieldMetadata<
-      10,
-      ::protozero::proto_utils::RepetitionType::kRepeatedNotPacked,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      SysStats_DevfreqValue,
-      SysStats>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Devfreq kDevfreq() { return {}; }
-  template <typename T = SysStats_DevfreqValue> T* add_devfreq() {
-    return BeginNestedMessage<T>(10);
-  }
-
-};
-
-class SysStats_DevfreqValue_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/2, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  SysStats_DevfreqValue_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit SysStats_DevfreqValue_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit SysStats_DevfreqValue_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_key() const { return at<1>().valid(); }
-  ::protozero::ConstChars key() const { return at<1>().as_string(); }
-  bool has_value() const { return at<2>().valid(); }
-  uint64_t value() const { return at<2>().as_uint64(); }
-};
-
-class SysStats_DevfreqValue : public ::protozero::Message {
- public:
-  using Decoder = SysStats_DevfreqValue_Decoder;
-  enum : int32_t {
-    kKeyFieldNumber = 1,
-    kValueFieldNumber = 2,
-  };
-
-  using FieldMetadata_Key =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kString,
-      std::string,
-      SysStats_DevfreqValue>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Key kKey() { return {}; }
-  void set_key(const char* data, size_t size) {
-    AppendBytes(FieldMetadata_Key::kFieldId, data, size);
-  }
-  void set_key(std::string value) {
-    static constexpr uint32_t field_id = FieldMetadata_Key::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kString>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Value =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      SysStats_DevfreqValue>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Value kValue() { return {}; }
-  void set_value(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Value::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-};
-
-class SysStats_InterruptCount_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/2, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  SysStats_InterruptCount_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit SysStats_InterruptCount_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit SysStats_InterruptCount_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_irq() const { return at<1>().valid(); }
-  int32_t irq() const { return at<1>().as_int32(); }
-  bool has_count() const { return at<2>().valid(); }
-  uint64_t count() const { return at<2>().as_uint64(); }
-};
-
-class SysStats_InterruptCount : public ::protozero::Message {
- public:
-  using Decoder = SysStats_InterruptCount_Decoder;
-  enum : int32_t {
-    kIrqFieldNumber = 1,
-    kCountFieldNumber = 2,
-  };
-
-  using FieldMetadata_Irq =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt32,
-      int32_t,
-      SysStats_InterruptCount>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Irq kIrq() { return {}; }
-  void set_irq(int32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Irq::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Count =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      SysStats_InterruptCount>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Count kCount() { return {}; }
-  void set_count(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Count::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-};
-
-class SysStats_CpuTimes_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/8, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  SysStats_CpuTimes_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit SysStats_CpuTimes_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit SysStats_CpuTimes_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_cpu_id() const { return at<1>().valid(); }
-  uint32_t cpu_id() const { return at<1>().as_uint32(); }
-  bool has_user_ns() const { return at<2>().valid(); }
-  uint64_t user_ns() const { return at<2>().as_uint64(); }
-  bool has_user_ice_ns() const { return at<3>().valid(); }
-  uint64_t user_ice_ns() const { return at<3>().as_uint64(); }
-  bool has_system_mode_ns() const { return at<4>().valid(); }
-  uint64_t system_mode_ns() const { return at<4>().as_uint64(); }
-  bool has_idle_ns() const { return at<5>().valid(); }
-  uint64_t idle_ns() const { return at<5>().as_uint64(); }
-  bool has_io_wait_ns() const { return at<6>().valid(); }
-  uint64_t io_wait_ns() const { return at<6>().as_uint64(); }
-  bool has_irq_ns() const { return at<7>().valid(); }
-  uint64_t irq_ns() const { return at<7>().as_uint64(); }
-  bool has_softirq_ns() const { return at<8>().valid(); }
-  uint64_t softirq_ns() const { return at<8>().as_uint64(); }
-};
-
-class SysStats_CpuTimes : public ::protozero::Message {
- public:
-  using Decoder = SysStats_CpuTimes_Decoder;
-  enum : int32_t {
-    kCpuIdFieldNumber = 1,
-    kUserNsFieldNumber = 2,
-    kUserIceNsFieldNumber = 3,
-    kSystemModeNsFieldNumber = 4,
-    kIdleNsFieldNumber = 5,
-    kIoWaitNsFieldNumber = 6,
-    kIrqNsFieldNumber = 7,
-    kSoftirqNsFieldNumber = 8,
-  };
-
-  using FieldMetadata_CpuId =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      SysStats_CpuTimes>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_CpuId kCpuId() { return {}; }
-  void set_cpu_id(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_CpuId::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_UserNs =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      SysStats_CpuTimes>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_UserNs kUserNs() { return {}; }
-  void set_user_ns(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_UserNs::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_UserIceNs =
-    ::protozero::proto_utils::FieldMetadata<
-      3,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      SysStats_CpuTimes>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_UserIceNs kUserIceNs() { return {}; }
-  void set_user_ice_ns(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_UserIceNs::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_SystemModeNs =
-    ::protozero::proto_utils::FieldMetadata<
-      4,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      SysStats_CpuTimes>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_SystemModeNs kSystemModeNs() { return {}; }
-  void set_system_mode_ns(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_SystemModeNs::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_IdleNs =
-    ::protozero::proto_utils::FieldMetadata<
-      5,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      SysStats_CpuTimes>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_IdleNs kIdleNs() { return {}; }
-  void set_idle_ns(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_IdleNs::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_IoWaitNs =
-    ::protozero::proto_utils::FieldMetadata<
-      6,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      SysStats_CpuTimes>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_IoWaitNs kIoWaitNs() { return {}; }
-  void set_io_wait_ns(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_IoWaitNs::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_IrqNs =
-    ::protozero::proto_utils::FieldMetadata<
-      7,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      SysStats_CpuTimes>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_IrqNs kIrqNs() { return {}; }
-  void set_irq_ns(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_IrqNs::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_SoftirqNs =
-    ::protozero::proto_utils::FieldMetadata<
-      8,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      SysStats_CpuTimes>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_SoftirqNs kSoftirqNs() { return {}; }
-  void set_softirq_ns(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_SoftirqNs::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-};
-
-class SysStats_VmstatValue_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/2, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  SysStats_VmstatValue_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit SysStats_VmstatValue_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit SysStats_VmstatValue_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_key() const { return at<1>().valid(); }
-  int32_t key() const { return at<1>().as_int32(); }
-  bool has_value() const { return at<2>().valid(); }
-  uint64_t value() const { return at<2>().as_uint64(); }
-};
-
-class SysStats_VmstatValue : public ::protozero::Message {
- public:
-  using Decoder = SysStats_VmstatValue_Decoder;
-  enum : int32_t {
-    kKeyFieldNumber = 1,
-    kValueFieldNumber = 2,
-  };
-
-  using FieldMetadata_Key =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kEnum,
-      ::perfetto::protos::pbzero::VmstatCounters,
-      SysStats_VmstatValue>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Key kKey() { return {}; }
-  void set_key(::perfetto::protos::pbzero::VmstatCounters value) {
-    static constexpr uint32_t field_id = FieldMetadata_Key::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kEnum>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Value =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      SysStats_VmstatValue>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Value kValue() { return {}; }
-  void set_value(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Value::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-};
-
-class SysStats_MeminfoValue_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/2, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  SysStats_MeminfoValue_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit SysStats_MeminfoValue_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit SysStats_MeminfoValue_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_key() const { return at<1>().valid(); }
-  int32_t key() const { return at<1>().as_int32(); }
-  bool has_value() const { return at<2>().valid(); }
-  uint64_t value() const { return at<2>().as_uint64(); }
-};
-
-class SysStats_MeminfoValue : public ::protozero::Message {
- public:
-  using Decoder = SysStats_MeminfoValue_Decoder;
-  enum : int32_t {
-    kKeyFieldNumber = 1,
-    kValueFieldNumber = 2,
-  };
-
-  using FieldMetadata_Key =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kEnum,
-      ::perfetto::protos::pbzero::MeminfoCounters,
-      SysStats_MeminfoValue>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Key kKey() { return {}; }
-  void set_key(::perfetto::protos::pbzero::MeminfoCounters value) {
-    static constexpr uint32_t field_id = FieldMetadata_Key::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kEnum>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Value =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      SysStats_MeminfoValue>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Value kValue() { return {}; }
-  void set_value(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Value::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-};
-
-} // Namespace.
-} // Namespace.
-} // Namespace.
-#endif  // Include guard.
-// gen_amalgamated begin header: gen/protos/perfetto/trace/system_info/cpu_info.pbzero.h
-// Autogenerated by the ProtoZero compiler plugin. DO NOT EDIT.
-
-#ifndef PERFETTO_PROTOS_PROTOS_PERFETTO_TRACE_SYSTEM_INFO_CPU_INFO_PROTO_H_
-#define PERFETTO_PROTOS_PROTOS_PERFETTO_TRACE_SYSTEM_INFO_CPU_INFO_PROTO_H_
-
-#include <stddef.h>
-#include <stdint.h>
-
-// gen_amalgamated expanded: #include "perfetto/protozero/field_writer.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/message.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/packed_repeated_fields.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/proto_decoder.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/proto_utils.h"
-
-namespace perfetto {
-namespace protos {
-namespace pbzero {
-
-class CpuInfo_Cpu;
-
-class CpuInfo_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/1, /*HAS_NONPACKED_REPEATED_FIELDS=*/true> {
- public:
-  CpuInfo_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit CpuInfo_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit CpuInfo_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_cpus() const { return at<1>().valid(); }
-  ::protozero::RepeatedFieldIterator<::protozero::ConstBytes> cpus() const { return GetRepeated<::protozero::ConstBytes>(1); }
-};
-
-class CpuInfo : public ::protozero::Message {
- public:
-  using Decoder = CpuInfo_Decoder;
-  enum : int32_t {
-    kCpusFieldNumber = 1,
-  };
-  using Cpu = ::perfetto::protos::pbzero::CpuInfo_Cpu;
-
-  using FieldMetadata_Cpus =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kRepeatedNotPacked,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      CpuInfo_Cpu,
-      CpuInfo>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Cpus kCpus() { return {}; }
-  template <typename T = CpuInfo_Cpu> T* add_cpus() {
-    return BeginNestedMessage<T>(1);
-  }
-
-};
-
-class CpuInfo_Cpu_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/2, /*HAS_NONPACKED_REPEATED_FIELDS=*/true> {
- public:
-  CpuInfo_Cpu_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit CpuInfo_Cpu_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit CpuInfo_Cpu_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_processor() const { return at<1>().valid(); }
-  ::protozero::ConstChars processor() const { return at<1>().as_string(); }
-  bool has_frequencies() const { return at<2>().valid(); }
-  ::protozero::RepeatedFieldIterator<uint32_t> frequencies() const { return GetRepeated<uint32_t>(2); }
-};
-
-class CpuInfo_Cpu : public ::protozero::Message {
- public:
-  using Decoder = CpuInfo_Cpu_Decoder;
-  enum : int32_t {
-    kProcessorFieldNumber = 1,
-    kFrequenciesFieldNumber = 2,
-  };
-
-  using FieldMetadata_Processor =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kString,
-      std::string,
-      CpuInfo_Cpu>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Processor kProcessor() { return {}; }
-  void set_processor(const char* data, size_t size) {
-    AppendBytes(FieldMetadata_Processor::kFieldId, data, size);
-  }
-  void set_processor(std::string value) {
-    static constexpr uint32_t field_id = FieldMetadata_Processor::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kString>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Frequencies =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kRepeatedNotPacked,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      CpuInfo_Cpu>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Frequencies kFrequencies() { return {}; }
-  void add_frequencies(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Frequencies::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-};
-
-} // Namespace.
-} // Namespace.
-} // Namespace.
-#endif  // Include guard.
-// gen_amalgamated begin header: gen/protos/perfetto/trace/trace_packet_defaults.pbzero.h
-// Autogenerated by the ProtoZero compiler plugin. DO NOT EDIT.
-
-#ifndef PERFETTO_PROTOS_PROTOS_PERFETTO_TRACE_TRACE_PACKET_DEFAULTS_PROTO_H_
-#define PERFETTO_PROTOS_PROTOS_PERFETTO_TRACE_TRACE_PACKET_DEFAULTS_PROTO_H_
-
-#include <stddef.h>
-#include <stdint.h>
-
-// gen_amalgamated expanded: #include "perfetto/protozero/field_writer.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/message.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/packed_repeated_fields.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/proto_decoder.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/proto_utils.h"
-
-namespace perfetto {
-namespace protos {
-namespace pbzero {
-
-class PerfSampleDefaults;
-class TrackEventDefaults;
-
-class TracePacketDefaults_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/58, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  TracePacketDefaults_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit TracePacketDefaults_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit TracePacketDefaults_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_timestamp_clock_id() const { return at<58>().valid(); }
-  uint32_t timestamp_clock_id() const { return at<58>().as_uint32(); }
-  bool has_track_event_defaults() const { return at<11>().valid(); }
-  ::protozero::ConstBytes track_event_defaults() const { return at<11>().as_bytes(); }
-  bool has_perf_sample_defaults() const { return at<12>().valid(); }
-  ::protozero::ConstBytes perf_sample_defaults() const { return at<12>().as_bytes(); }
-};
-
-class TracePacketDefaults : public ::protozero::Message {
- public:
-  using Decoder = TracePacketDefaults_Decoder;
-  enum : int32_t {
-    kTimestampClockIdFieldNumber = 58,
-    kTrackEventDefaultsFieldNumber = 11,
-    kPerfSampleDefaultsFieldNumber = 12,
-  };
-
-  using FieldMetadata_TimestampClockId =
-    ::protozero::proto_utils::FieldMetadata<
-      58,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      TracePacketDefaults>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_TimestampClockId kTimestampClockId() { return {}; }
-  void set_timestamp_clock_id(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_TimestampClockId::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_TrackEventDefaults =
-    ::protozero::proto_utils::FieldMetadata<
-      11,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      TrackEventDefaults,
-      TracePacketDefaults>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_TrackEventDefaults kTrackEventDefaults() { return {}; }
-  template <typename T = TrackEventDefaults> T* set_track_event_defaults() {
-    return BeginNestedMessage<T>(11);
-  }
-
-
-  using FieldMetadata_PerfSampleDefaults =
-    ::protozero::proto_utils::FieldMetadata<
-      12,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      PerfSampleDefaults,
-      TracePacketDefaults>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_PerfSampleDefaults kPerfSampleDefaults() { return {}; }
-  template <typename T = PerfSampleDefaults> T* set_perf_sample_defaults() {
-    return BeginNestedMessage<T>(12);
-  }
-
-};
-
-} // Namespace.
-} // Namespace.
-} // Namespace.
-#endif  // Include guard.
-// gen_amalgamated begin header: gen/protos/perfetto/trace/test_event.pbzero.h
-// Autogenerated by the ProtoZero compiler plugin. DO NOT EDIT.
-
-#ifndef PERFETTO_PROTOS_PROTOS_PERFETTO_TRACE_TEST_EVENT_PROTO_H_
-#define PERFETTO_PROTOS_PROTOS_PERFETTO_TRACE_TEST_EVENT_PROTO_H_
-
-#include <stddef.h>
-#include <stdint.h>
-
-// gen_amalgamated expanded: #include "perfetto/protozero/field_writer.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/message.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/packed_repeated_fields.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/proto_decoder.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/proto_utils.h"
-
-namespace perfetto {
-namespace protos {
-namespace pbzero {
-
-class TestEvent_TestPayload;
-
-class TestEvent_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/5, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  TestEvent_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit TestEvent_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit TestEvent_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_str() const { return at<1>().valid(); }
-  ::protozero::ConstChars str() const { return at<1>().as_string(); }
-  bool has_seq_value() const { return at<2>().valid(); }
-  uint32_t seq_value() const { return at<2>().as_uint32(); }
-  bool has_counter() const { return at<3>().valid(); }
-  uint64_t counter() const { return at<3>().as_uint64(); }
-  bool has_is_last() const { return at<4>().valid(); }
-  bool is_last() const { return at<4>().as_bool(); }
-  bool has_payload() const { return at<5>().valid(); }
-  ::protozero::ConstBytes payload() const { return at<5>().as_bytes(); }
-};
-
-class TestEvent : public ::protozero::Message {
- public:
-  using Decoder = TestEvent_Decoder;
-  enum : int32_t {
-    kStrFieldNumber = 1,
-    kSeqValueFieldNumber = 2,
-    kCounterFieldNumber = 3,
-    kIsLastFieldNumber = 4,
-    kPayloadFieldNumber = 5,
-  };
-  using TestPayload = ::perfetto::protos::pbzero::TestEvent_TestPayload;
-
-  using FieldMetadata_Str =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kString,
-      std::string,
-      TestEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Str kStr() { return {}; }
-  void set_str(const char* data, size_t size) {
-    AppendBytes(FieldMetadata_Str::kFieldId, data, size);
-  }
-  void set_str(std::string value) {
-    static constexpr uint32_t field_id = FieldMetadata_Str::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kString>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_SeqValue =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      TestEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_SeqValue kSeqValue() { return {}; }
-  void set_seq_value(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_SeqValue::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Counter =
-    ::protozero::proto_utils::FieldMetadata<
-      3,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      TestEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Counter kCounter() { return {}; }
-  void set_counter(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Counter::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_IsLast =
-    ::protozero::proto_utils::FieldMetadata<
-      4,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kBool,
-      bool,
-      TestEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_IsLast kIsLast() { return {}; }
-  void set_is_last(bool value) {
-    static constexpr uint32_t field_id = FieldMetadata_IsLast::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kBool>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Payload =
-    ::protozero::proto_utils::FieldMetadata<
-      5,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      TestEvent_TestPayload,
-      TestEvent>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Payload kPayload() { return {}; }
-  template <typename T = TestEvent_TestPayload> T* set_payload() {
-    return BeginNestedMessage<T>(5);
-  }
-
-};
-
-class TestEvent_TestPayload_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/6, /*HAS_NONPACKED_REPEATED_FIELDS=*/true> {
- public:
-  TestEvent_TestPayload_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit TestEvent_TestPayload_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit TestEvent_TestPayload_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_str() const { return at<1>().valid(); }
-  ::protozero::RepeatedFieldIterator<::protozero::ConstChars> str() const { return GetRepeated<::protozero::ConstChars>(1); }
-  bool has_nested() const { return at<2>().valid(); }
-  ::protozero::RepeatedFieldIterator<::protozero::ConstBytes> nested() const { return GetRepeated<::protozero::ConstBytes>(2); }
-  bool has_single_string() const { return at<4>().valid(); }
-  ::protozero::ConstChars single_string() const { return at<4>().as_string(); }
-  bool has_single_int() const { return at<5>().valid(); }
-  int32_t single_int() const { return at<5>().as_int32(); }
-  bool has_repeated_ints() const { return at<6>().valid(); }
-  ::protozero::RepeatedFieldIterator<int32_t> repeated_ints() const { return GetRepeated<int32_t>(6); }
-  bool has_remaining_nesting_depth() const { return at<3>().valid(); }
-  uint32_t remaining_nesting_depth() const { return at<3>().as_uint32(); }
-};
-
-class TestEvent_TestPayload : public ::protozero::Message {
- public:
-  using Decoder = TestEvent_TestPayload_Decoder;
-  enum : int32_t {
-    kStrFieldNumber = 1,
-    kNestedFieldNumber = 2,
-    kSingleStringFieldNumber = 4,
-    kSingleIntFieldNumber = 5,
-    kRepeatedIntsFieldNumber = 6,
-    kRemainingNestingDepthFieldNumber = 3,
-  };
-
-  using FieldMetadata_Str =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kRepeatedNotPacked,
-      ::protozero::proto_utils::ProtoSchemaType::kString,
-      std::string,
-      TestEvent_TestPayload>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Str kStr() { return {}; }
-  void add_str(const char* data, size_t size) {
-    AppendBytes(FieldMetadata_Str::kFieldId, data, size);
-  }
-  void add_str(std::string value) {
-    static constexpr uint32_t field_id = FieldMetadata_Str::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kString>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Nested =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kRepeatedNotPacked,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      TestEvent_TestPayload,
-      TestEvent_TestPayload>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Nested kNested() { return {}; }
-  template <typename T = TestEvent_TestPayload> T* add_nested() {
-    return BeginNestedMessage<T>(2);
-  }
-
-
-  using FieldMetadata_SingleString =
-    ::protozero::proto_utils::FieldMetadata<
-      4,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kString,
-      std::string,
-      TestEvent_TestPayload>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_SingleString kSingleString() { return {}; }
-  void set_single_string(const char* data, size_t size) {
-    AppendBytes(FieldMetadata_SingleString::kFieldId, data, size);
-  }
-  void set_single_string(std::string value) {
-    static constexpr uint32_t field_id = FieldMetadata_SingleString::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kString>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_SingleInt =
-    ::protozero::proto_utils::FieldMetadata<
-      5,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt32,
-      int32_t,
-      TestEvent_TestPayload>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_SingleInt kSingleInt() { return {}; }
-  void set_single_int(int32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_SingleInt::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_RepeatedInts =
-    ::protozero::proto_utils::FieldMetadata<
-      6,
-      ::protozero::proto_utils::RepetitionType::kRepeatedNotPacked,
-      ::protozero::proto_utils::ProtoSchemaType::kInt32,
-      int32_t,
-      TestEvent_TestPayload>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_RepeatedInts kRepeatedInts() { return {}; }
-  void add_repeated_ints(int32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_RepeatedInts::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_RemainingNestingDepth =
-    ::protozero::proto_utils::FieldMetadata<
-      3,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      TestEvent_TestPayload>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_RemainingNestingDepth kRemainingNestingDepth() { return {}; }
-  void set_remaining_nesting_depth(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_RemainingNestingDepth::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-};
-
-} // Namespace.
-} // Namespace.
-} // Namespace.
-#endif  // Include guard.
-// gen_amalgamated begin header: gen/protos/perfetto/trace/test_extensions.pbzero.h
-// Autogenerated by the ProtoZero compiler plugin. DO NOT EDIT.
-
-#ifndef PERFETTO_PROTOS_PROTOS_PERFETTO_TRACE_TEST_EXTENSIONS_PROTO_H_
-#define PERFETTO_PROTOS_PROTOS_PERFETTO_TRACE_TEST_EXTENSIONS_PROTO_H_
-
-#include <stddef.h>
-#include <stdint.h>
-
-// gen_amalgamated expanded: #include "perfetto/protozero/field_writer.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/message.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/packed_repeated_fields.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/proto_decoder.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/proto_utils.h"
-// gen_amalgamated expanded: #include "protos/perfetto/trace/track_event/track_event.pbzero.h"
-
-namespace perfetto {
-namespace protos {
-namespace pbzero {
-
-
-class TestExtensionChild_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/1, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  TestExtensionChild_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit TestExtensionChild_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit TestExtensionChild_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_child_field_for_testing() const { return at<1>().valid(); }
-  ::protozero::ConstChars child_field_for_testing() const { return at<1>().as_string(); }
-};
-
-class TestExtensionChild : public ::protozero::Message {
- public:
-  using Decoder = TestExtensionChild_Decoder;
-  enum : int32_t {
-    kChildFieldForTestingFieldNumber = 1,
-  };
-
-  using FieldMetadata_ChildFieldForTesting =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kString,
-      std::string,
-      TestExtensionChild>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_ChildFieldForTesting kChildFieldForTesting() { return {}; }
-  void set_child_field_for_testing(const char* data, size_t size) {
-    AppendBytes(FieldMetadata_ChildFieldForTesting::kFieldId, data, size);
-  }
-  void set_child_field_for_testing(std::string value) {
-    static constexpr uint32_t field_id = FieldMetadata_ChildFieldForTesting::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kString>
-        ::Append(*this, field_id, value);
-  }
-};
-
-class TestExtension : public ::perfetto::protos::pbzero::TrackEvent {
- public:
-
-  using FieldMetadata_StringExtensionForTesting =
-    ::protozero::proto_utils::FieldMetadata<
-      9900,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kString,
-      std::string,
-      TestExtension>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_StringExtensionForTesting kStringExtensionForTesting() { return {}; }
-  void set_string_extension_for_testing(const char* data, size_t size) {
-    AppendBytes(FieldMetadata_StringExtensionForTesting::kFieldId, data, size);
-  }
-  void set_string_extension_for_testing(std::string value) {
-    static constexpr uint32_t field_id = FieldMetadata_StringExtensionForTesting::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kString>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_IntExtensionForTesting =
-    ::protozero::proto_utils::FieldMetadata<
-      9901,
-      ::protozero::proto_utils::RepetitionType::kRepeatedNotPacked,
-      ::protozero::proto_utils::ProtoSchemaType::kInt32,
-      int32_t,
-      TestExtension>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_IntExtensionForTesting kIntExtensionForTesting() { return {}; }
-  void add_int_extension_for_testing(int32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_IntExtensionForTesting::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_OmittedExtensionForTesting =
-    ::protozero::proto_utils::FieldMetadata<
-      9902,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kString,
-      std::string,
-      TestExtension>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_OmittedExtensionForTesting kOmittedExtensionForTesting() { return {}; }
-  void set_omitted_extension_for_testing(const char* data, size_t size) {
-    AppendBytes(FieldMetadata_OmittedExtensionForTesting::kFieldId, data, size);
-  }
-  void set_omitted_extension_for_testing(std::string value) {
-    static constexpr uint32_t field_id = FieldMetadata_OmittedExtensionForTesting::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kString>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_NestedMessageExtensionForTesting =
-    ::protozero::proto_utils::FieldMetadata<
-      9903,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      TestExtensionChild,
-      TestExtension>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_NestedMessageExtensionForTesting kNestedMessageExtensionForTesting() { return {}; }
-  template <typename T = TestExtensionChild> T* set_nested_message_extension_for_testing() {
-    return BeginNestedMessage<T>(9903);
-  }
-
-};
-} // Namespace.
-} // Namespace.
-} // Namespace.
-#endif  // Include guard.
-// gen_amalgamated begin header: gen/protos/perfetto/trace/trace_packet.pbzero.h
-// Autogenerated by the ProtoZero compiler plugin. DO NOT EDIT.
-
-#ifndef PERFETTO_PROTOS_PROTOS_PERFETTO_TRACE_TRACE_PACKET_PROTO_H_
-#define PERFETTO_PROTOS_PROTOS_PERFETTO_TRACE_TRACE_PACKET_PROTO_H_
-
-#include <stddef.h>
-#include <stdint.h>
-
-// gen_amalgamated expanded: #include "perfetto/protozero/field_writer.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/message.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/packed_repeated_fields.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/proto_decoder.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/proto_utils.h"
-
-namespace perfetto {
-namespace protos {
-namespace pbzero {
-
-class AndroidEnergyEstimationBreakdown;
-class AndroidLogPacket;
-class BatteryCounters;
-class ChromeBenchmarkMetadata;
-class ChromeEventBundle;
-class ChromeMetadataPacket;
-class ClockSnapshot;
-class CpuInfo;
-class DeobfuscationMapping;
-class ExtensionDescriptor;
-class FrameTimelineEvent;
-class FtraceEventBundle;
-class FtraceStats;
-class GpuCounterEvent;
-class GpuLog;
-class GpuMemTotalEvent;
-class GpuRenderStageEvent;
-class GraphicsFrameEvent;
-class HeapGraph;
-class InitialDisplayState;
-class InodeFileMap;
-class InternedData;
-class MemoryTrackerSnapshot;
-class ModuleSymbols;
-class PackagesList;
-class PerfSample;
-class PerfettoMetatrace;
-class PowerRails;
-class ProcessDescriptor;
-class ProcessStats;
-class ProcessTree;
-class ProfilePacket;
-class ProfiledFrameSymbols;
-class SmapsPacket;
-class StreamingAllocation;
-class StreamingFree;
-class StreamingProfilePacket;
-class SysStats;
-class SystemInfo;
-class TestEvent;
-class ThreadDescriptor;
-class TraceConfig;
-class TracePacketDefaults;
-class TraceStats;
-class TracingServiceEvent;
-class TrackDescriptor;
-class TrackEvent;
-class Trigger;
-class UiState;
-class VulkanApiEvent;
-class VulkanMemoryEvent;
-
-enum TracePacket_SequenceFlags : int32_t {
-  TracePacket_SequenceFlags_SEQ_UNSPECIFIED = 0,
-  TracePacket_SequenceFlags_SEQ_INCREMENTAL_STATE_CLEARED = 1,
-  TracePacket_SequenceFlags_SEQ_NEEDS_INCREMENTAL_STATE = 2,
-};
-
-const TracePacket_SequenceFlags TracePacket_SequenceFlags_MIN = TracePacket_SequenceFlags_SEQ_UNSPECIFIED;
-const TracePacket_SequenceFlags TracePacket_SequenceFlags_MAX = TracePacket_SequenceFlags_SEQ_NEEDS_INCREMENTAL_STATE;
-
-class TracePacket_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/900, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  TracePacket_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit TracePacket_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit TracePacket_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_timestamp() const { return at<8>().valid(); }
-  uint64_t timestamp() const { return at<8>().as_uint64(); }
-  bool has_timestamp_clock_id() const { return at<58>().valid(); }
-  uint32_t timestamp_clock_id() const { return at<58>().as_uint32(); }
-  bool has_process_tree() const { return at<2>().valid(); }
-  ::protozero::ConstBytes process_tree() const { return at<2>().as_bytes(); }
-  bool has_process_stats() const { return at<9>().valid(); }
-  ::protozero::ConstBytes process_stats() const { return at<9>().as_bytes(); }
-  bool has_inode_file_map() const { return at<4>().valid(); }
-  ::protozero::ConstBytes inode_file_map() const { return at<4>().as_bytes(); }
-  bool has_chrome_events() const { return at<5>().valid(); }
-  ::protozero::ConstBytes chrome_events() const { return at<5>().as_bytes(); }
-  bool has_clock_snapshot() const { return at<6>().valid(); }
-  ::protozero::ConstBytes clock_snapshot() const { return at<6>().as_bytes(); }
-  bool has_sys_stats() const { return at<7>().valid(); }
-  ::protozero::ConstBytes sys_stats() const { return at<7>().as_bytes(); }
-  bool has_track_event() const { return at<11>().valid(); }
-  ::protozero::ConstBytes track_event() const { return at<11>().as_bytes(); }
-  bool has_trace_config() const { return at<33>().valid(); }
-  ::protozero::ConstBytes trace_config() const { return at<33>().as_bytes(); }
-  bool has_ftrace_stats() const { return at<34>().valid(); }
-  ::protozero::ConstBytes ftrace_stats() const { return at<34>().as_bytes(); }
-  bool has_trace_stats() const { return at<35>().valid(); }
-  ::protozero::ConstBytes trace_stats() const { return at<35>().as_bytes(); }
-  bool has_profile_packet() const { return at<37>().valid(); }
-  ::protozero::ConstBytes profile_packet() const { return at<37>().as_bytes(); }
-  bool has_streaming_allocation() const { return at<74>().valid(); }
-  ::protozero::ConstBytes streaming_allocation() const { return at<74>().as_bytes(); }
-  bool has_streaming_free() const { return at<75>().valid(); }
-  ::protozero::ConstBytes streaming_free() const { return at<75>().as_bytes(); }
-  bool has_battery() const { return at<38>().valid(); }
-  ::protozero::ConstBytes battery() const { return at<38>().as_bytes(); }
-  bool has_power_rails() const { return at<40>().valid(); }
-  ::protozero::ConstBytes power_rails() const { return at<40>().as_bytes(); }
-  bool has_android_log() const { return at<39>().valid(); }
-  ::protozero::ConstBytes android_log() const { return at<39>().as_bytes(); }
-  bool has_system_info() const { return at<45>().valid(); }
-  ::protozero::ConstBytes system_info() const { return at<45>().as_bytes(); }
-  bool has_trigger() const { return at<46>().valid(); }
-  ::protozero::ConstBytes trigger() const { return at<46>().as_bytes(); }
-  bool has_packages_list() const { return at<47>().valid(); }
-  ::protozero::ConstBytes packages_list() const { return at<47>().as_bytes(); }
-  bool has_chrome_benchmark_metadata() const { return at<48>().valid(); }
-  ::protozero::ConstBytes chrome_benchmark_metadata() const { return at<48>().as_bytes(); }
-  bool has_perfetto_metatrace() const { return at<49>().valid(); }
-  ::protozero::ConstBytes perfetto_metatrace() const { return at<49>().as_bytes(); }
-  bool has_chrome_metadata() const { return at<51>().valid(); }
-  ::protozero::ConstBytes chrome_metadata() const { return at<51>().as_bytes(); }
-  bool has_gpu_counter_event() const { return at<52>().valid(); }
-  ::protozero::ConstBytes gpu_counter_event() const { return at<52>().as_bytes(); }
-  bool has_gpu_render_stage_event() const { return at<53>().valid(); }
-  ::protozero::ConstBytes gpu_render_stage_event() const { return at<53>().as_bytes(); }
-  bool has_streaming_profile_packet() const { return at<54>().valid(); }
-  ::protozero::ConstBytes streaming_profile_packet() const { return at<54>().as_bytes(); }
-  bool has_heap_graph() const { return at<56>().valid(); }
-  ::protozero::ConstBytes heap_graph() const { return at<56>().as_bytes(); }
-  bool has_graphics_frame_event() const { return at<57>().valid(); }
-  ::protozero::ConstBytes graphics_frame_event() const { return at<57>().as_bytes(); }
-  bool has_vulkan_memory_event() const { return at<62>().valid(); }
-  ::protozero::ConstBytes vulkan_memory_event() const { return at<62>().as_bytes(); }
-  bool has_gpu_log() const { return at<63>().valid(); }
-  ::protozero::ConstBytes gpu_log() const { return at<63>().as_bytes(); }
-  bool has_vulkan_api_event() const { return at<65>().valid(); }
-  ::protozero::ConstBytes vulkan_api_event() const { return at<65>().as_bytes(); }
-  bool has_perf_sample() const { return at<66>().valid(); }
-  ::protozero::ConstBytes perf_sample() const { return at<66>().as_bytes(); }
-  bool has_cpu_info() const { return at<67>().valid(); }
-  ::protozero::ConstBytes cpu_info() const { return at<67>().as_bytes(); }
-  bool has_smaps_packet() const { return at<68>().valid(); }
-  ::protozero::ConstBytes smaps_packet() const { return at<68>().as_bytes(); }
-  bool has_service_event() const { return at<69>().valid(); }
-  ::protozero::ConstBytes service_event() const { return at<69>().as_bytes(); }
-  bool has_initial_display_state() const { return at<70>().valid(); }
-  ::protozero::ConstBytes initial_display_state() const { return at<70>().as_bytes(); }
-  bool has_gpu_mem_total_event() const { return at<71>().valid(); }
-  ::protozero::ConstBytes gpu_mem_total_event() const { return at<71>().as_bytes(); }
-  bool has_memory_tracker_snapshot() const { return at<73>().valid(); }
-  ::protozero::ConstBytes memory_tracker_snapshot() const { return at<73>().as_bytes(); }
-  bool has_frame_timeline_event() const { return at<76>().valid(); }
-  ::protozero::ConstBytes frame_timeline_event() const { return at<76>().as_bytes(); }
-  bool has_android_energy_estimation_breakdown() const { return at<77>().valid(); }
-  ::protozero::ConstBytes android_energy_estimation_breakdown() const { return at<77>().as_bytes(); }
-  bool has_ui_state() const { return at<78>().valid(); }
-  ::protozero::ConstBytes ui_state() const { return at<78>().as_bytes(); }
-  bool has_profiled_frame_symbols() const { return at<55>().valid(); }
-  ::protozero::ConstBytes profiled_frame_symbols() const { return at<55>().as_bytes(); }
-  bool has_module_symbols() const { return at<61>().valid(); }
-  ::protozero::ConstBytes module_symbols() const { return at<61>().as_bytes(); }
-  bool has_deobfuscation_mapping() const { return at<64>().valid(); }
-  ::protozero::ConstBytes deobfuscation_mapping() const { return at<64>().as_bytes(); }
-  bool has_track_descriptor() const { return at<60>().valid(); }
-  ::protozero::ConstBytes track_descriptor() const { return at<60>().as_bytes(); }
-  bool has_process_descriptor() const { return at<43>().valid(); }
-  ::protozero::ConstBytes process_descriptor() const { return at<43>().as_bytes(); }
-  bool has_thread_descriptor() const { return at<44>().valid(); }
-  ::protozero::ConstBytes thread_descriptor() const { return at<44>().as_bytes(); }
-  bool has_ftrace_events() const { return at<1>().valid(); }
-  ::protozero::ConstBytes ftrace_events() const { return at<1>().as_bytes(); }
-  bool has_synchronization_marker() const { return at<36>().valid(); }
-  ::protozero::ConstBytes synchronization_marker() const { return at<36>().as_bytes(); }
-  bool has_compressed_packets() const { return at<50>().valid(); }
-  ::protozero::ConstBytes compressed_packets() const { return at<50>().as_bytes(); }
-  bool has_extension_descriptor() const { return at<72>().valid(); }
-  ::protozero::ConstBytes extension_descriptor() const { return at<72>().as_bytes(); }
-  bool has_for_testing() const { return at<900>().valid(); }
-  ::protozero::ConstBytes for_testing() const { return at<900>().as_bytes(); }
-  bool has_trusted_uid() const { return at<3>().valid(); }
-  int32_t trusted_uid() const { return at<3>().as_int32(); }
-  bool has_trusted_packet_sequence_id() const { return at<10>().valid(); }
-  uint32_t trusted_packet_sequence_id() const { return at<10>().as_uint32(); }
-  bool has_interned_data() const { return at<12>().valid(); }
-  ::protozero::ConstBytes interned_data() const { return at<12>().as_bytes(); }
-  bool has_sequence_flags() const { return at<13>().valid(); }
-  uint32_t sequence_flags() const { return at<13>().as_uint32(); }
-  bool has_incremental_state_cleared() const { return at<41>().valid(); }
-  bool incremental_state_cleared() const { return at<41>().as_bool(); }
-  bool has_trace_packet_defaults() const { return at<59>().valid(); }
-  ::protozero::ConstBytes trace_packet_defaults() const { return at<59>().as_bytes(); }
-  bool has_previous_packet_dropped() const { return at<42>().valid(); }
-  bool previous_packet_dropped() const { return at<42>().as_bool(); }
-};
-
-class TracePacket : public ::protozero::Message {
- public:
-  using Decoder = TracePacket_Decoder;
-  enum : int32_t {
-    kTimestampFieldNumber = 8,
-    kTimestampClockIdFieldNumber = 58,
-    kProcessTreeFieldNumber = 2,
-    kProcessStatsFieldNumber = 9,
-    kInodeFileMapFieldNumber = 4,
-    kChromeEventsFieldNumber = 5,
-    kClockSnapshotFieldNumber = 6,
-    kSysStatsFieldNumber = 7,
-    kTrackEventFieldNumber = 11,
-    kTraceConfigFieldNumber = 33,
-    kFtraceStatsFieldNumber = 34,
-    kTraceStatsFieldNumber = 35,
-    kProfilePacketFieldNumber = 37,
-    kStreamingAllocationFieldNumber = 74,
-    kStreamingFreeFieldNumber = 75,
-    kBatteryFieldNumber = 38,
-    kPowerRailsFieldNumber = 40,
-    kAndroidLogFieldNumber = 39,
-    kSystemInfoFieldNumber = 45,
-    kTriggerFieldNumber = 46,
-    kPackagesListFieldNumber = 47,
-    kChromeBenchmarkMetadataFieldNumber = 48,
-    kPerfettoMetatraceFieldNumber = 49,
-    kChromeMetadataFieldNumber = 51,
-    kGpuCounterEventFieldNumber = 52,
-    kGpuRenderStageEventFieldNumber = 53,
-    kStreamingProfilePacketFieldNumber = 54,
-    kHeapGraphFieldNumber = 56,
-    kGraphicsFrameEventFieldNumber = 57,
-    kVulkanMemoryEventFieldNumber = 62,
-    kGpuLogFieldNumber = 63,
-    kVulkanApiEventFieldNumber = 65,
-    kPerfSampleFieldNumber = 66,
-    kCpuInfoFieldNumber = 67,
-    kSmapsPacketFieldNumber = 68,
-    kServiceEventFieldNumber = 69,
-    kInitialDisplayStateFieldNumber = 70,
-    kGpuMemTotalEventFieldNumber = 71,
-    kMemoryTrackerSnapshotFieldNumber = 73,
-    kFrameTimelineEventFieldNumber = 76,
-    kAndroidEnergyEstimationBreakdownFieldNumber = 77,
-    kUiStateFieldNumber = 78,
-    kProfiledFrameSymbolsFieldNumber = 55,
-    kModuleSymbolsFieldNumber = 61,
-    kDeobfuscationMappingFieldNumber = 64,
-    kTrackDescriptorFieldNumber = 60,
-    kProcessDescriptorFieldNumber = 43,
-    kThreadDescriptorFieldNumber = 44,
-    kFtraceEventsFieldNumber = 1,
-    kSynchronizationMarkerFieldNumber = 36,
-    kCompressedPacketsFieldNumber = 50,
-    kExtensionDescriptorFieldNumber = 72,
-    kForTestingFieldNumber = 900,
-    kTrustedUidFieldNumber = 3,
-    kTrustedPacketSequenceIdFieldNumber = 10,
-    kInternedDataFieldNumber = 12,
-    kSequenceFlagsFieldNumber = 13,
-    kIncrementalStateClearedFieldNumber = 41,
-    kTracePacketDefaultsFieldNumber = 59,
-    kPreviousPacketDroppedFieldNumber = 42,
-  };
-  using SequenceFlags = ::perfetto::protos::pbzero::TracePacket_SequenceFlags;
-  static const SequenceFlags SEQ_UNSPECIFIED = TracePacket_SequenceFlags_SEQ_UNSPECIFIED;
-  static const SequenceFlags SEQ_INCREMENTAL_STATE_CLEARED = TracePacket_SequenceFlags_SEQ_INCREMENTAL_STATE_CLEARED;
-  static const SequenceFlags SEQ_NEEDS_INCREMENTAL_STATE = TracePacket_SequenceFlags_SEQ_NEEDS_INCREMENTAL_STATE;
-
-  using FieldMetadata_Timestamp =
-    ::protozero::proto_utils::FieldMetadata<
-      8,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      TracePacket>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Timestamp kTimestamp() { return {}; }
-  void set_timestamp(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Timestamp::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_TimestampClockId =
-    ::protozero::proto_utils::FieldMetadata<
-      58,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      TracePacket>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_TimestampClockId kTimestampClockId() { return {}; }
-  void set_timestamp_clock_id(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_TimestampClockId::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_ProcessTree =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      ProcessTree,
-      TracePacket>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_ProcessTree kProcessTree() { return {}; }
-  template <typename T = ProcessTree> T* set_process_tree() {
-    return BeginNestedMessage<T>(2);
-  }
-
-
-  using FieldMetadata_ProcessStats =
-    ::protozero::proto_utils::FieldMetadata<
-      9,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      ProcessStats,
-      TracePacket>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_ProcessStats kProcessStats() { return {}; }
-  template <typename T = ProcessStats> T* set_process_stats() {
-    return BeginNestedMessage<T>(9);
-  }
-
-
-  using FieldMetadata_InodeFileMap =
-    ::protozero::proto_utils::FieldMetadata<
-      4,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      InodeFileMap,
-      TracePacket>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_InodeFileMap kInodeFileMap() { return {}; }
-  template <typename T = InodeFileMap> T* set_inode_file_map() {
-    return BeginNestedMessage<T>(4);
-  }
-
-
-  using FieldMetadata_ChromeEvents =
-    ::protozero::proto_utils::FieldMetadata<
-      5,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      ChromeEventBundle,
-      TracePacket>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_ChromeEvents kChromeEvents() { return {}; }
-  template <typename T = ChromeEventBundle> T* set_chrome_events() {
-    return BeginNestedMessage<T>(5);
-  }
-
-
-  using FieldMetadata_ClockSnapshot =
-    ::protozero::proto_utils::FieldMetadata<
-      6,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      ClockSnapshot,
-      TracePacket>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_ClockSnapshot kClockSnapshot() { return {}; }
-  template <typename T = ClockSnapshot> T* set_clock_snapshot() {
-    return BeginNestedMessage<T>(6);
-  }
-
-
-  using FieldMetadata_SysStats =
-    ::protozero::proto_utils::FieldMetadata<
-      7,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      SysStats,
-      TracePacket>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_SysStats kSysStats() { return {}; }
-  template <typename T = SysStats> T* set_sys_stats() {
-    return BeginNestedMessage<T>(7);
-  }
-
-
-  using FieldMetadata_TrackEvent =
-    ::protozero::proto_utils::FieldMetadata<
-      11,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      TrackEvent,
-      TracePacket>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_TrackEvent kTrackEvent() { return {}; }
-  template <typename T = TrackEvent> T* set_track_event() {
-    return BeginNestedMessage<T>(11);
-  }
-
-
-  using FieldMetadata_TraceConfig =
-    ::protozero::proto_utils::FieldMetadata<
-      33,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      TraceConfig,
-      TracePacket>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_TraceConfig kTraceConfig() { return {}; }
-  template <typename T = TraceConfig> T* set_trace_config() {
-    return BeginNestedMessage<T>(33);
-  }
-
-
-  using FieldMetadata_FtraceStats =
-    ::protozero::proto_utils::FieldMetadata<
-      34,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      FtraceStats,
-      TracePacket>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_FtraceStats kFtraceStats() { return {}; }
-  template <typename T = FtraceStats> T* set_ftrace_stats() {
-    return BeginNestedMessage<T>(34);
-  }
-
-
-  using FieldMetadata_TraceStats =
-    ::protozero::proto_utils::FieldMetadata<
-      35,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      TraceStats,
-      TracePacket>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_TraceStats kTraceStats() { return {}; }
-  template <typename T = TraceStats> T* set_trace_stats() {
-    return BeginNestedMessage<T>(35);
-  }
-
-
-  using FieldMetadata_ProfilePacket =
-    ::protozero::proto_utils::FieldMetadata<
-      37,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      ProfilePacket,
-      TracePacket>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_ProfilePacket kProfilePacket() { return {}; }
-  template <typename T = ProfilePacket> T* set_profile_packet() {
-    return BeginNestedMessage<T>(37);
-  }
-
-
-  using FieldMetadata_StreamingAllocation =
-    ::protozero::proto_utils::FieldMetadata<
-      74,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      StreamingAllocation,
-      TracePacket>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_StreamingAllocation kStreamingAllocation() { return {}; }
-  template <typename T = StreamingAllocation> T* set_streaming_allocation() {
-    return BeginNestedMessage<T>(74);
-  }
-
-
-  using FieldMetadata_StreamingFree =
-    ::protozero::proto_utils::FieldMetadata<
-      75,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      StreamingFree,
-      TracePacket>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_StreamingFree kStreamingFree() { return {}; }
-  template <typename T = StreamingFree> T* set_streaming_free() {
-    return BeginNestedMessage<T>(75);
-  }
-
-
-  using FieldMetadata_Battery =
-    ::protozero::proto_utils::FieldMetadata<
-      38,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      BatteryCounters,
-      TracePacket>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Battery kBattery() { return {}; }
-  template <typename T = BatteryCounters> T* set_battery() {
-    return BeginNestedMessage<T>(38);
-  }
-
-
-  using FieldMetadata_PowerRails =
-    ::protozero::proto_utils::FieldMetadata<
-      40,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      PowerRails,
-      TracePacket>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_PowerRails kPowerRails() { return {}; }
-  template <typename T = PowerRails> T* set_power_rails() {
-    return BeginNestedMessage<T>(40);
-  }
-
-
-  using FieldMetadata_AndroidLog =
-    ::protozero::proto_utils::FieldMetadata<
-      39,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      AndroidLogPacket,
-      TracePacket>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_AndroidLog kAndroidLog() { return {}; }
-  template <typename T = AndroidLogPacket> T* set_android_log() {
-    return BeginNestedMessage<T>(39);
-  }
-
-
-  using FieldMetadata_SystemInfo =
-    ::protozero::proto_utils::FieldMetadata<
-      45,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      SystemInfo,
-      TracePacket>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_SystemInfo kSystemInfo() { return {}; }
-  template <typename T = SystemInfo> T* set_system_info() {
-    return BeginNestedMessage<T>(45);
-  }
-
-
-  using FieldMetadata_Trigger =
-    ::protozero::proto_utils::FieldMetadata<
-      46,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      Trigger,
-      TracePacket>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Trigger kTrigger() { return {}; }
-  template <typename T = Trigger> T* set_trigger() {
-    return BeginNestedMessage<T>(46);
-  }
-
-
-  using FieldMetadata_PackagesList =
-    ::protozero::proto_utils::FieldMetadata<
-      47,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      PackagesList,
-      TracePacket>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_PackagesList kPackagesList() { return {}; }
-  template <typename T = PackagesList> T* set_packages_list() {
-    return BeginNestedMessage<T>(47);
-  }
-
-
-  using FieldMetadata_ChromeBenchmarkMetadata =
-    ::protozero::proto_utils::FieldMetadata<
-      48,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      ChromeBenchmarkMetadata,
-      TracePacket>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_ChromeBenchmarkMetadata kChromeBenchmarkMetadata() { return {}; }
-  template <typename T = ChromeBenchmarkMetadata> T* set_chrome_benchmark_metadata() {
-    return BeginNestedMessage<T>(48);
-  }
-
-
-  using FieldMetadata_PerfettoMetatrace =
-    ::protozero::proto_utils::FieldMetadata<
-      49,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      PerfettoMetatrace,
-      TracePacket>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_PerfettoMetatrace kPerfettoMetatrace() { return {}; }
-  template <typename T = PerfettoMetatrace> T* set_perfetto_metatrace() {
-    return BeginNestedMessage<T>(49);
-  }
-
-
-  using FieldMetadata_ChromeMetadata =
-    ::protozero::proto_utils::FieldMetadata<
-      51,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      ChromeMetadataPacket,
-      TracePacket>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_ChromeMetadata kChromeMetadata() { return {}; }
-  template <typename T = ChromeMetadataPacket> T* set_chrome_metadata() {
-    return BeginNestedMessage<T>(51);
-  }
-
-
-  using FieldMetadata_GpuCounterEvent =
-    ::protozero::proto_utils::FieldMetadata<
-      52,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      GpuCounterEvent,
-      TracePacket>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_GpuCounterEvent kGpuCounterEvent() { return {}; }
-  template <typename T = GpuCounterEvent> T* set_gpu_counter_event() {
-    return BeginNestedMessage<T>(52);
-  }
-
-
-  using FieldMetadata_GpuRenderStageEvent =
-    ::protozero::proto_utils::FieldMetadata<
-      53,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      GpuRenderStageEvent,
-      TracePacket>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_GpuRenderStageEvent kGpuRenderStageEvent() { return {}; }
-  template <typename T = GpuRenderStageEvent> T* set_gpu_render_stage_event() {
-    return BeginNestedMessage<T>(53);
-  }
-
-
-  using FieldMetadata_StreamingProfilePacket =
-    ::protozero::proto_utils::FieldMetadata<
-      54,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      StreamingProfilePacket,
-      TracePacket>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_StreamingProfilePacket kStreamingProfilePacket() { return {}; }
-  template <typename T = StreamingProfilePacket> T* set_streaming_profile_packet() {
-    return BeginNestedMessage<T>(54);
-  }
-
-
-  using FieldMetadata_HeapGraph =
-    ::protozero::proto_utils::FieldMetadata<
-      56,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      HeapGraph,
-      TracePacket>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_HeapGraph kHeapGraph() { return {}; }
-  template <typename T = HeapGraph> T* set_heap_graph() {
-    return BeginNestedMessage<T>(56);
-  }
-
-
-  using FieldMetadata_GraphicsFrameEvent =
-    ::protozero::proto_utils::FieldMetadata<
-      57,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      GraphicsFrameEvent,
-      TracePacket>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_GraphicsFrameEvent kGraphicsFrameEvent() { return {}; }
-  template <typename T = GraphicsFrameEvent> T* set_graphics_frame_event() {
-    return BeginNestedMessage<T>(57);
-  }
-
-
-  using FieldMetadata_VulkanMemoryEvent =
-    ::protozero::proto_utils::FieldMetadata<
-      62,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      VulkanMemoryEvent,
-      TracePacket>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_VulkanMemoryEvent kVulkanMemoryEvent() { return {}; }
-  template <typename T = VulkanMemoryEvent> T* set_vulkan_memory_event() {
-    return BeginNestedMessage<T>(62);
-  }
-
-
-  using FieldMetadata_GpuLog =
-    ::protozero::proto_utils::FieldMetadata<
-      63,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      GpuLog,
-      TracePacket>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_GpuLog kGpuLog() { return {}; }
-  template <typename T = GpuLog> T* set_gpu_log() {
-    return BeginNestedMessage<T>(63);
-  }
-
-
-  using FieldMetadata_VulkanApiEvent =
-    ::protozero::proto_utils::FieldMetadata<
-      65,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      VulkanApiEvent,
-      TracePacket>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_VulkanApiEvent kVulkanApiEvent() { return {}; }
-  template <typename T = VulkanApiEvent> T* set_vulkan_api_event() {
-    return BeginNestedMessage<T>(65);
-  }
-
-
-  using FieldMetadata_PerfSample =
-    ::protozero::proto_utils::FieldMetadata<
-      66,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      PerfSample,
-      TracePacket>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_PerfSample kPerfSample() { return {}; }
-  template <typename T = PerfSample> T* set_perf_sample() {
-    return BeginNestedMessage<T>(66);
-  }
-
-
-  using FieldMetadata_CpuInfo =
-    ::protozero::proto_utils::FieldMetadata<
-      67,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      CpuInfo,
-      TracePacket>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_CpuInfo kCpuInfo() { return {}; }
-  template <typename T = CpuInfo> T* set_cpu_info() {
-    return BeginNestedMessage<T>(67);
-  }
-
-
-  using FieldMetadata_SmapsPacket =
-    ::protozero::proto_utils::FieldMetadata<
-      68,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      SmapsPacket,
-      TracePacket>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_SmapsPacket kSmapsPacket() { return {}; }
-  template <typename T = SmapsPacket> T* set_smaps_packet() {
-    return BeginNestedMessage<T>(68);
-  }
-
-
-  using FieldMetadata_ServiceEvent =
-    ::protozero::proto_utils::FieldMetadata<
-      69,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      TracingServiceEvent,
-      TracePacket>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_ServiceEvent kServiceEvent() { return {}; }
-  template <typename T = TracingServiceEvent> T* set_service_event() {
-    return BeginNestedMessage<T>(69);
-  }
-
-
-  using FieldMetadata_InitialDisplayState =
-    ::protozero::proto_utils::FieldMetadata<
-      70,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      InitialDisplayState,
-      TracePacket>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_InitialDisplayState kInitialDisplayState() { return {}; }
-  template <typename T = InitialDisplayState> T* set_initial_display_state() {
-    return BeginNestedMessage<T>(70);
-  }
-
-
-  using FieldMetadata_GpuMemTotalEvent =
-    ::protozero::proto_utils::FieldMetadata<
-      71,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      GpuMemTotalEvent,
-      TracePacket>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_GpuMemTotalEvent kGpuMemTotalEvent() { return {}; }
-  template <typename T = GpuMemTotalEvent> T* set_gpu_mem_total_event() {
-    return BeginNestedMessage<T>(71);
-  }
-
-
-  using FieldMetadata_MemoryTrackerSnapshot =
-    ::protozero::proto_utils::FieldMetadata<
-      73,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      MemoryTrackerSnapshot,
-      TracePacket>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_MemoryTrackerSnapshot kMemoryTrackerSnapshot() { return {}; }
-  template <typename T = MemoryTrackerSnapshot> T* set_memory_tracker_snapshot() {
-    return BeginNestedMessage<T>(73);
-  }
-
-
-  using FieldMetadata_FrameTimelineEvent =
-    ::protozero::proto_utils::FieldMetadata<
-      76,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      FrameTimelineEvent,
-      TracePacket>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_FrameTimelineEvent kFrameTimelineEvent() { return {}; }
-  template <typename T = FrameTimelineEvent> T* set_frame_timeline_event() {
-    return BeginNestedMessage<T>(76);
-  }
-
-
-  using FieldMetadata_AndroidEnergyEstimationBreakdown =
-    ::protozero::proto_utils::FieldMetadata<
-      77,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      AndroidEnergyEstimationBreakdown,
-      TracePacket>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_AndroidEnergyEstimationBreakdown kAndroidEnergyEstimationBreakdown() { return {}; }
-  template <typename T = AndroidEnergyEstimationBreakdown> T* set_android_energy_estimation_breakdown() {
-    return BeginNestedMessage<T>(77);
-  }
-
-
-  using FieldMetadata_UiState =
-    ::protozero::proto_utils::FieldMetadata<
-      78,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      UiState,
-      TracePacket>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_UiState kUiState() { return {}; }
-  template <typename T = UiState> T* set_ui_state() {
-    return BeginNestedMessage<T>(78);
-  }
-
-
-  using FieldMetadata_ProfiledFrameSymbols =
-    ::protozero::proto_utils::FieldMetadata<
-      55,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      ProfiledFrameSymbols,
-      TracePacket>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_ProfiledFrameSymbols kProfiledFrameSymbols() { return {}; }
-  template <typename T = ProfiledFrameSymbols> T* set_profiled_frame_symbols() {
-    return BeginNestedMessage<T>(55);
-  }
-
-
-  using FieldMetadata_ModuleSymbols =
-    ::protozero::proto_utils::FieldMetadata<
-      61,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      ModuleSymbols,
-      TracePacket>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_ModuleSymbols kModuleSymbols() { return {}; }
-  template <typename T = ModuleSymbols> T* set_module_symbols() {
-    return BeginNestedMessage<T>(61);
-  }
-
-
-  using FieldMetadata_DeobfuscationMapping =
-    ::protozero::proto_utils::FieldMetadata<
-      64,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      DeobfuscationMapping,
-      TracePacket>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_DeobfuscationMapping kDeobfuscationMapping() { return {}; }
-  template <typename T = DeobfuscationMapping> T* set_deobfuscation_mapping() {
-    return BeginNestedMessage<T>(64);
-  }
-
-
-  using FieldMetadata_TrackDescriptor =
-    ::protozero::proto_utils::FieldMetadata<
-      60,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      TrackDescriptor,
-      TracePacket>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_TrackDescriptor kTrackDescriptor() { return {}; }
-  template <typename T = TrackDescriptor> T* set_track_descriptor() {
-    return BeginNestedMessage<T>(60);
-  }
-
-
-  using FieldMetadata_ProcessDescriptor =
-    ::protozero::proto_utils::FieldMetadata<
-      43,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      ProcessDescriptor,
-      TracePacket>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_ProcessDescriptor kProcessDescriptor() { return {}; }
-  template <typename T = ProcessDescriptor> T* set_process_descriptor() {
-    return BeginNestedMessage<T>(43);
-  }
-
-
-  using FieldMetadata_ThreadDescriptor =
-    ::protozero::proto_utils::FieldMetadata<
-      44,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      ThreadDescriptor,
-      TracePacket>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_ThreadDescriptor kThreadDescriptor() { return {}; }
-  template <typename T = ThreadDescriptor> T* set_thread_descriptor() {
-    return BeginNestedMessage<T>(44);
-  }
-
-
-  using FieldMetadata_FtraceEvents =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      FtraceEventBundle,
-      TracePacket>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_FtraceEvents kFtraceEvents() { return {}; }
-  template <typename T = FtraceEventBundle> T* set_ftrace_events() {
-    return BeginNestedMessage<T>(1);
-  }
-
-
-  using FieldMetadata_SynchronizationMarker =
-    ::protozero::proto_utils::FieldMetadata<
-      36,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kBytes,
-      std::string,
-      TracePacket>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_SynchronizationMarker kSynchronizationMarker() { return {}; }
-  void set_synchronization_marker(const uint8_t* data, size_t size) {
-    AppendBytes(FieldMetadata_SynchronizationMarker::kFieldId, data, size);
-  }
-  void set_synchronization_marker(std::string value) {
-    static constexpr uint32_t field_id = FieldMetadata_SynchronizationMarker::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kBytes>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_CompressedPackets =
-    ::protozero::proto_utils::FieldMetadata<
-      50,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kBytes,
-      std::string,
-      TracePacket>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_CompressedPackets kCompressedPackets() { return {}; }
-  void set_compressed_packets(const uint8_t* data, size_t size) {
-    AppendBytes(FieldMetadata_CompressedPackets::kFieldId, data, size);
-  }
-  void set_compressed_packets(std::string value) {
-    static constexpr uint32_t field_id = FieldMetadata_CompressedPackets::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kBytes>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_ExtensionDescriptor =
-    ::protozero::proto_utils::FieldMetadata<
-      72,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      ExtensionDescriptor,
-      TracePacket>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_ExtensionDescriptor kExtensionDescriptor() { return {}; }
-  template <typename T = ExtensionDescriptor> T* set_extension_descriptor() {
-    return BeginNestedMessage<T>(72);
-  }
-
-
-  using FieldMetadata_ForTesting =
-    ::protozero::proto_utils::FieldMetadata<
-      900,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      TestEvent,
-      TracePacket>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_ForTesting kForTesting() { return {}; }
-  template <typename T = TestEvent> T* set_for_testing() {
-    return BeginNestedMessage<T>(900);
-  }
-
-
-  using FieldMetadata_TrustedUid =
-    ::protozero::proto_utils::FieldMetadata<
-      3,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt32,
-      int32_t,
-      TracePacket>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_TrustedUid kTrustedUid() { return {}; }
-  void set_trusted_uid(int32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_TrustedUid::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_TrustedPacketSequenceId =
-    ::protozero::proto_utils::FieldMetadata<
-      10,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      TracePacket>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_TrustedPacketSequenceId kTrustedPacketSequenceId() { return {}; }
-  void set_trusted_packet_sequence_id(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_TrustedPacketSequenceId::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_InternedData =
-    ::protozero::proto_utils::FieldMetadata<
-      12,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      InternedData,
-      TracePacket>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_InternedData kInternedData() { return {}; }
-  template <typename T = InternedData> T* set_interned_data() {
-    return BeginNestedMessage<T>(12);
-  }
-
-
-  using FieldMetadata_SequenceFlags =
-    ::protozero::proto_utils::FieldMetadata<
-      13,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      TracePacket>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_SequenceFlags kSequenceFlags() { return {}; }
-  void set_sequence_flags(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_SequenceFlags::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_IncrementalStateCleared =
-    ::protozero::proto_utils::FieldMetadata<
-      41,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kBool,
-      bool,
-      TracePacket>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_IncrementalStateCleared kIncrementalStateCleared() { return {}; }
-  void set_incremental_state_cleared(bool value) {
-    static constexpr uint32_t field_id = FieldMetadata_IncrementalStateCleared::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kBool>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_TracePacketDefaults =
-    ::protozero::proto_utils::FieldMetadata<
-      59,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      TracePacketDefaults,
-      TracePacket>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_TracePacketDefaults kTracePacketDefaults() { return {}; }
-  template <typename T = TracePacketDefaults> T* set_trace_packet_defaults() {
-    return BeginNestedMessage<T>(59);
-  }
-
-
-  using FieldMetadata_PreviousPacketDropped =
-    ::protozero::proto_utils::FieldMetadata<
-      42,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kBool,
-      bool,
-      TracePacket>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_PreviousPacketDropped kPreviousPacketDropped() { return {}; }
-  void set_previous_packet_dropped(bool value) {
-    static constexpr uint32_t field_id = FieldMetadata_PreviousPacketDropped::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kBool>
-        ::Append(*this, field_id, value);
-  }
-};
-
-} // Namespace.
-} // Namespace.
-} // Namespace.
-#endif  // Include guard.
-// gen_amalgamated begin header: gen/protos/perfetto/trace/trace.pbzero.h
-// Autogenerated by the ProtoZero compiler plugin. DO NOT EDIT.
-
-#ifndef PERFETTO_PROTOS_PROTOS_PERFETTO_TRACE_TRACE_PROTO_H_
-#define PERFETTO_PROTOS_PROTOS_PERFETTO_TRACE_TRACE_PROTO_H_
-
-#include <stddef.h>
-#include <stdint.h>
-
-// gen_amalgamated expanded: #include "perfetto/protozero/field_writer.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/message.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/packed_repeated_fields.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/proto_decoder.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/proto_utils.h"
-
-namespace perfetto {
-namespace protos {
-namespace pbzero {
-
-class TracePacket;
-
-class Trace_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/1, /*HAS_NONPACKED_REPEATED_FIELDS=*/true> {
- public:
-  Trace_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit Trace_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit Trace_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_packet() const { return at<1>().valid(); }
-  ::protozero::RepeatedFieldIterator<::protozero::ConstBytes> packet() const { return GetRepeated<::protozero::ConstBytes>(1); }
-};
-
-class Trace : public ::protozero::Message {
- public:
-  using Decoder = Trace_Decoder;
-  enum : int32_t {
-    kPacketFieldNumber = 1,
-  };
-
-  using FieldMetadata_Packet =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kRepeatedNotPacked,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      TracePacket,
-      Trace>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Packet kPacket() { return {}; }
-  template <typename T = TracePacket> T* add_packet() {
-    return BeginNestedMessage<T>(1);
-  }
-
-};
-
-} // Namespace.
-} // Namespace.
-} // Namespace.
-#endif  // Include guard.
-// gen_amalgamated begin header: gen/protos/perfetto/trace/extension_descriptor.pbzero.h
-// Autogenerated by the ProtoZero compiler plugin. DO NOT EDIT.
-
-#ifndef PERFETTO_PROTOS_PROTOS_PERFETTO_TRACE_EXTENSION_DESCRIPTOR_PROTO_H_
-#define PERFETTO_PROTOS_PROTOS_PERFETTO_TRACE_EXTENSION_DESCRIPTOR_PROTO_H_
-
-#include <stddef.h>
-#include <stdint.h>
-
-// gen_amalgamated expanded: #include "perfetto/protozero/field_writer.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/message.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/packed_repeated_fields.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/proto_decoder.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/proto_utils.h"
-
-namespace perfetto {
-namespace protos {
-namespace pbzero {
-
-class FileDescriptorSet;
-
-class ExtensionDescriptor_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/1, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  ExtensionDescriptor_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit ExtensionDescriptor_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit ExtensionDescriptor_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_extension_set() const { return at<1>().valid(); }
-  ::protozero::ConstBytes extension_set() const { return at<1>().as_bytes(); }
-};
-
-class ExtensionDescriptor : public ::protozero::Message {
- public:
-  using Decoder = ExtensionDescriptor_Decoder;
-  enum : int32_t {
-    kExtensionSetFieldNumber = 1,
-  };
-
-  using FieldMetadata_ExtensionSet =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      FileDescriptorSet,
-      ExtensionDescriptor>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_ExtensionSet kExtensionSet() { return {}; }
-  template <typename T = FileDescriptorSet> T* set_extension_set() {
-    return BeginNestedMessage<T>(1);
-  }
-
-};
-
-} // Namespace.
-} // Namespace.
-} // Namespace.
-#endif  // Include guard.
-// gen_amalgamated begin header: gen/protos/perfetto/trace/memory_graph.pbzero.h
-// Autogenerated by the ProtoZero compiler plugin. DO NOT EDIT.
-
-#ifndef PERFETTO_PROTOS_PROTOS_PERFETTO_TRACE_MEMORY_GRAPH_PROTO_H_
-#define PERFETTO_PROTOS_PROTOS_PERFETTO_TRACE_MEMORY_GRAPH_PROTO_H_
-
-#include <stddef.h>
-#include <stdint.h>
-
-// gen_amalgamated expanded: #include "perfetto/protozero/field_writer.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/message.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/packed_repeated_fields.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/proto_decoder.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/proto_utils.h"
-
-namespace perfetto {
-namespace protos {
-namespace pbzero {
-
-class MemoryTrackerSnapshot_ProcessSnapshot;
-class MemoryTrackerSnapshot_ProcessSnapshot_MemoryEdge;
-class MemoryTrackerSnapshot_ProcessSnapshot_MemoryNode;
-class MemoryTrackerSnapshot_ProcessSnapshot_MemoryNode_MemoryNodeEntry;
-enum MemoryTrackerSnapshot_LevelOfDetail : int32_t;
-enum MemoryTrackerSnapshot_ProcessSnapshot_MemoryNode_MemoryNodeEntry_Units : int32_t;
-
-enum MemoryTrackerSnapshot_LevelOfDetail : int32_t {
-  MemoryTrackerSnapshot_LevelOfDetail_DETAIL_FULL = 0,
-  MemoryTrackerSnapshot_LevelOfDetail_DETAIL_LIGHT = 1,
-  MemoryTrackerSnapshot_LevelOfDetail_DETAIL_BACKGROUND = 2,
-};
-
-const MemoryTrackerSnapshot_LevelOfDetail MemoryTrackerSnapshot_LevelOfDetail_MIN = MemoryTrackerSnapshot_LevelOfDetail_DETAIL_FULL;
-const MemoryTrackerSnapshot_LevelOfDetail MemoryTrackerSnapshot_LevelOfDetail_MAX = MemoryTrackerSnapshot_LevelOfDetail_DETAIL_BACKGROUND;
-
-enum MemoryTrackerSnapshot_ProcessSnapshot_MemoryNode_MemoryNodeEntry_Units : int32_t {
-  MemoryTrackerSnapshot_ProcessSnapshot_MemoryNode_MemoryNodeEntry_Units_UNSPECIFIED = 0,
-  MemoryTrackerSnapshot_ProcessSnapshot_MemoryNode_MemoryNodeEntry_Units_BYTES = 1,
-  MemoryTrackerSnapshot_ProcessSnapshot_MemoryNode_MemoryNodeEntry_Units_COUNT = 2,
-};
-
-const MemoryTrackerSnapshot_ProcessSnapshot_MemoryNode_MemoryNodeEntry_Units MemoryTrackerSnapshot_ProcessSnapshot_MemoryNode_MemoryNodeEntry_Units_MIN = MemoryTrackerSnapshot_ProcessSnapshot_MemoryNode_MemoryNodeEntry_Units_UNSPECIFIED;
-const MemoryTrackerSnapshot_ProcessSnapshot_MemoryNode_MemoryNodeEntry_Units MemoryTrackerSnapshot_ProcessSnapshot_MemoryNode_MemoryNodeEntry_Units_MAX = MemoryTrackerSnapshot_ProcessSnapshot_MemoryNode_MemoryNodeEntry_Units_COUNT;
-
-class MemoryTrackerSnapshot_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/3, /*HAS_NONPACKED_REPEATED_FIELDS=*/true> {
- public:
-  MemoryTrackerSnapshot_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit MemoryTrackerSnapshot_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit MemoryTrackerSnapshot_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_global_dump_id() const { return at<1>().valid(); }
-  uint64_t global_dump_id() const { return at<1>().as_uint64(); }
-  bool has_level_of_detail() const { return at<2>().valid(); }
-  int32_t level_of_detail() const { return at<2>().as_int32(); }
-  bool has_process_memory_dumps() const { return at<3>().valid(); }
-  ::protozero::RepeatedFieldIterator<::protozero::ConstBytes> process_memory_dumps() const { return GetRepeated<::protozero::ConstBytes>(3); }
-};
-
-class MemoryTrackerSnapshot : public ::protozero::Message {
- public:
-  using Decoder = MemoryTrackerSnapshot_Decoder;
-  enum : int32_t {
-    kGlobalDumpIdFieldNumber = 1,
-    kLevelOfDetailFieldNumber = 2,
-    kProcessMemoryDumpsFieldNumber = 3,
-  };
-  using ProcessSnapshot = ::perfetto::protos::pbzero::MemoryTrackerSnapshot_ProcessSnapshot;
-  using LevelOfDetail = ::perfetto::protos::pbzero::MemoryTrackerSnapshot_LevelOfDetail;
-  static const LevelOfDetail DETAIL_FULL = MemoryTrackerSnapshot_LevelOfDetail_DETAIL_FULL;
-  static const LevelOfDetail DETAIL_LIGHT = MemoryTrackerSnapshot_LevelOfDetail_DETAIL_LIGHT;
-  static const LevelOfDetail DETAIL_BACKGROUND = MemoryTrackerSnapshot_LevelOfDetail_DETAIL_BACKGROUND;
-
-  using FieldMetadata_GlobalDumpId =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      MemoryTrackerSnapshot>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_GlobalDumpId kGlobalDumpId() { return {}; }
-  void set_global_dump_id(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_GlobalDumpId::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_LevelOfDetail =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kEnum,
-      ::perfetto::protos::pbzero::MemoryTrackerSnapshot_LevelOfDetail,
-      MemoryTrackerSnapshot>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_LevelOfDetail kLevelOfDetail() { return {}; }
-  void set_level_of_detail(::perfetto::protos::pbzero::MemoryTrackerSnapshot_LevelOfDetail value) {
-    static constexpr uint32_t field_id = FieldMetadata_LevelOfDetail::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kEnum>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_ProcessMemoryDumps =
-    ::protozero::proto_utils::FieldMetadata<
-      3,
-      ::protozero::proto_utils::RepetitionType::kRepeatedNotPacked,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      MemoryTrackerSnapshot_ProcessSnapshot,
-      MemoryTrackerSnapshot>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_ProcessMemoryDumps kProcessMemoryDumps() { return {}; }
-  template <typename T = MemoryTrackerSnapshot_ProcessSnapshot> T* add_process_memory_dumps() {
-    return BeginNestedMessage<T>(3);
-  }
-
-};
-
-class MemoryTrackerSnapshot_ProcessSnapshot_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/3, /*HAS_NONPACKED_REPEATED_FIELDS=*/true> {
- public:
-  MemoryTrackerSnapshot_ProcessSnapshot_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit MemoryTrackerSnapshot_ProcessSnapshot_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit MemoryTrackerSnapshot_ProcessSnapshot_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_pid() const { return at<1>().valid(); }
-  int32_t pid() const { return at<1>().as_int32(); }
-  bool has_allocator_dumps() const { return at<2>().valid(); }
-  ::protozero::RepeatedFieldIterator<::protozero::ConstBytes> allocator_dumps() const { return GetRepeated<::protozero::ConstBytes>(2); }
-  bool has_memory_edges() const { return at<3>().valid(); }
-  ::protozero::RepeatedFieldIterator<::protozero::ConstBytes> memory_edges() const { return GetRepeated<::protozero::ConstBytes>(3); }
-};
-
-class MemoryTrackerSnapshot_ProcessSnapshot : public ::protozero::Message {
- public:
-  using Decoder = MemoryTrackerSnapshot_ProcessSnapshot_Decoder;
-  enum : int32_t {
-    kPidFieldNumber = 1,
-    kAllocatorDumpsFieldNumber = 2,
-    kMemoryEdgesFieldNumber = 3,
-  };
-  using MemoryNode = ::perfetto::protos::pbzero::MemoryTrackerSnapshot_ProcessSnapshot_MemoryNode;
-  using MemoryEdge = ::perfetto::protos::pbzero::MemoryTrackerSnapshot_ProcessSnapshot_MemoryEdge;
-
-  using FieldMetadata_Pid =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt32,
-      int32_t,
-      MemoryTrackerSnapshot_ProcessSnapshot>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Pid kPid() { return {}; }
-  void set_pid(int32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Pid::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_AllocatorDumps =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kRepeatedNotPacked,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      MemoryTrackerSnapshot_ProcessSnapshot_MemoryNode,
-      MemoryTrackerSnapshot_ProcessSnapshot>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_AllocatorDumps kAllocatorDumps() { return {}; }
-  template <typename T = MemoryTrackerSnapshot_ProcessSnapshot_MemoryNode> T* add_allocator_dumps() {
-    return BeginNestedMessage<T>(2);
-  }
-
-
-  using FieldMetadata_MemoryEdges =
-    ::protozero::proto_utils::FieldMetadata<
-      3,
-      ::protozero::proto_utils::RepetitionType::kRepeatedNotPacked,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      MemoryTrackerSnapshot_ProcessSnapshot_MemoryEdge,
-      MemoryTrackerSnapshot_ProcessSnapshot>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_MemoryEdges kMemoryEdges() { return {}; }
-  template <typename T = MemoryTrackerSnapshot_ProcessSnapshot_MemoryEdge> T* add_memory_edges() {
-    return BeginNestedMessage<T>(3);
-  }
-
-};
-
-class MemoryTrackerSnapshot_ProcessSnapshot_MemoryEdge_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/4, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  MemoryTrackerSnapshot_ProcessSnapshot_MemoryEdge_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit MemoryTrackerSnapshot_ProcessSnapshot_MemoryEdge_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit MemoryTrackerSnapshot_ProcessSnapshot_MemoryEdge_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_source_id() const { return at<1>().valid(); }
-  uint64_t source_id() const { return at<1>().as_uint64(); }
-  bool has_target_id() const { return at<2>().valid(); }
-  uint64_t target_id() const { return at<2>().as_uint64(); }
-  bool has_importance() const { return at<3>().valid(); }
-  uint32_t importance() const { return at<3>().as_uint32(); }
-  bool has_overridable() const { return at<4>().valid(); }
-  bool overridable() const { return at<4>().as_bool(); }
-};
-
-class MemoryTrackerSnapshot_ProcessSnapshot_MemoryEdge : public ::protozero::Message {
- public:
-  using Decoder = MemoryTrackerSnapshot_ProcessSnapshot_MemoryEdge_Decoder;
-  enum : int32_t {
-    kSourceIdFieldNumber = 1,
-    kTargetIdFieldNumber = 2,
-    kImportanceFieldNumber = 3,
-    kOverridableFieldNumber = 4,
-  };
-
-  using FieldMetadata_SourceId =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      MemoryTrackerSnapshot_ProcessSnapshot_MemoryEdge>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_SourceId kSourceId() { return {}; }
-  void set_source_id(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_SourceId::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_TargetId =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      MemoryTrackerSnapshot_ProcessSnapshot_MemoryEdge>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_TargetId kTargetId() { return {}; }
-  void set_target_id(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_TargetId::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Importance =
-    ::protozero::proto_utils::FieldMetadata<
-      3,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      MemoryTrackerSnapshot_ProcessSnapshot_MemoryEdge>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Importance kImportance() { return {}; }
-  void set_importance(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Importance::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Overridable =
-    ::protozero::proto_utils::FieldMetadata<
-      4,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kBool,
-      bool,
-      MemoryTrackerSnapshot_ProcessSnapshot_MemoryEdge>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Overridable kOverridable() { return {}; }
-  void set_overridable(bool value) {
-    static constexpr uint32_t field_id = FieldMetadata_Overridable::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kBool>
-        ::Append(*this, field_id, value);
-  }
-};
-
-class MemoryTrackerSnapshot_ProcessSnapshot_MemoryNode_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/5, /*HAS_NONPACKED_REPEATED_FIELDS=*/true> {
- public:
-  MemoryTrackerSnapshot_ProcessSnapshot_MemoryNode_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit MemoryTrackerSnapshot_ProcessSnapshot_MemoryNode_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit MemoryTrackerSnapshot_ProcessSnapshot_MemoryNode_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_id() const { return at<1>().valid(); }
-  uint64_t id() const { return at<1>().as_uint64(); }
-  bool has_absolute_name() const { return at<2>().valid(); }
-  ::protozero::ConstChars absolute_name() const { return at<2>().as_string(); }
-  bool has_weak() const { return at<3>().valid(); }
-  bool weak() const { return at<3>().as_bool(); }
-  bool has_size_bytes() const { return at<4>().valid(); }
-  uint64_t size_bytes() const { return at<4>().as_uint64(); }
-  bool has_entries() const { return at<5>().valid(); }
-  ::protozero::RepeatedFieldIterator<::protozero::ConstBytes> entries() const { return GetRepeated<::protozero::ConstBytes>(5); }
-};
-
-class MemoryTrackerSnapshot_ProcessSnapshot_MemoryNode : public ::protozero::Message {
- public:
-  using Decoder = MemoryTrackerSnapshot_ProcessSnapshot_MemoryNode_Decoder;
-  enum : int32_t {
-    kIdFieldNumber = 1,
-    kAbsoluteNameFieldNumber = 2,
-    kWeakFieldNumber = 3,
-    kSizeBytesFieldNumber = 4,
-    kEntriesFieldNumber = 5,
-  };
-  using MemoryNodeEntry = ::perfetto::protos::pbzero::MemoryTrackerSnapshot_ProcessSnapshot_MemoryNode_MemoryNodeEntry;
-
-  using FieldMetadata_Id =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      MemoryTrackerSnapshot_ProcessSnapshot_MemoryNode>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Id kId() { return {}; }
-  void set_id(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Id::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_AbsoluteName =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kString,
-      std::string,
-      MemoryTrackerSnapshot_ProcessSnapshot_MemoryNode>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_AbsoluteName kAbsoluteName() { return {}; }
-  void set_absolute_name(const char* data, size_t size) {
-    AppendBytes(FieldMetadata_AbsoluteName::kFieldId, data, size);
-  }
-  void set_absolute_name(std::string value) {
-    static constexpr uint32_t field_id = FieldMetadata_AbsoluteName::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kString>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Weak =
-    ::protozero::proto_utils::FieldMetadata<
-      3,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kBool,
-      bool,
-      MemoryTrackerSnapshot_ProcessSnapshot_MemoryNode>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Weak kWeak() { return {}; }
-  void set_weak(bool value) {
-    static constexpr uint32_t field_id = FieldMetadata_Weak::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kBool>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_SizeBytes =
-    ::protozero::proto_utils::FieldMetadata<
-      4,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      MemoryTrackerSnapshot_ProcessSnapshot_MemoryNode>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_SizeBytes kSizeBytes() { return {}; }
-  void set_size_bytes(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_SizeBytes::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Entries =
-    ::protozero::proto_utils::FieldMetadata<
-      5,
-      ::protozero::proto_utils::RepetitionType::kRepeatedNotPacked,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      MemoryTrackerSnapshot_ProcessSnapshot_MemoryNode_MemoryNodeEntry,
-      MemoryTrackerSnapshot_ProcessSnapshot_MemoryNode>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Entries kEntries() { return {}; }
-  template <typename T = MemoryTrackerSnapshot_ProcessSnapshot_MemoryNode_MemoryNodeEntry> T* add_entries() {
-    return BeginNestedMessage<T>(5);
-  }
-
-};
-
-class MemoryTrackerSnapshot_ProcessSnapshot_MemoryNode_MemoryNodeEntry_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/4, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  MemoryTrackerSnapshot_ProcessSnapshot_MemoryNode_MemoryNodeEntry_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit MemoryTrackerSnapshot_ProcessSnapshot_MemoryNode_MemoryNodeEntry_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit MemoryTrackerSnapshot_ProcessSnapshot_MemoryNode_MemoryNodeEntry_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_name() const { return at<1>().valid(); }
-  ::protozero::ConstChars name() const { return at<1>().as_string(); }
-  bool has_units() const { return at<2>().valid(); }
-  int32_t units() const { return at<2>().as_int32(); }
-  bool has_value_uint64() const { return at<3>().valid(); }
-  uint64_t value_uint64() const { return at<3>().as_uint64(); }
-  bool has_value_string() const { return at<4>().valid(); }
-  ::protozero::ConstChars value_string() const { return at<4>().as_string(); }
-};
-
-class MemoryTrackerSnapshot_ProcessSnapshot_MemoryNode_MemoryNodeEntry : public ::protozero::Message {
- public:
-  using Decoder = MemoryTrackerSnapshot_ProcessSnapshot_MemoryNode_MemoryNodeEntry_Decoder;
-  enum : int32_t {
-    kNameFieldNumber = 1,
-    kUnitsFieldNumber = 2,
-    kValueUint64FieldNumber = 3,
-    kValueStringFieldNumber = 4,
-  };
-  using Units = ::perfetto::protos::pbzero::MemoryTrackerSnapshot_ProcessSnapshot_MemoryNode_MemoryNodeEntry_Units;
-  static const Units UNSPECIFIED = MemoryTrackerSnapshot_ProcessSnapshot_MemoryNode_MemoryNodeEntry_Units_UNSPECIFIED;
-  static const Units BYTES = MemoryTrackerSnapshot_ProcessSnapshot_MemoryNode_MemoryNodeEntry_Units_BYTES;
-  static const Units COUNT = MemoryTrackerSnapshot_ProcessSnapshot_MemoryNode_MemoryNodeEntry_Units_COUNT;
-
-  using FieldMetadata_Name =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kString,
-      std::string,
-      MemoryTrackerSnapshot_ProcessSnapshot_MemoryNode_MemoryNodeEntry>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Name kName() { return {}; }
-  void set_name(const char* data, size_t size) {
-    AppendBytes(FieldMetadata_Name::kFieldId, data, size);
-  }
-  void set_name(std::string value) {
-    static constexpr uint32_t field_id = FieldMetadata_Name::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kString>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Units =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kEnum,
-      ::perfetto::protos::pbzero::MemoryTrackerSnapshot_ProcessSnapshot_MemoryNode_MemoryNodeEntry_Units,
-      MemoryTrackerSnapshot_ProcessSnapshot_MemoryNode_MemoryNodeEntry>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Units kUnits() { return {}; }
-  void set_units(::perfetto::protos::pbzero::MemoryTrackerSnapshot_ProcessSnapshot_MemoryNode_MemoryNodeEntry_Units value) {
-    static constexpr uint32_t field_id = FieldMetadata_Units::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kEnum>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_ValueUint64 =
-    ::protozero::proto_utils::FieldMetadata<
-      3,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint64,
-      uint64_t,
-      MemoryTrackerSnapshot_ProcessSnapshot_MemoryNode_MemoryNodeEntry>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_ValueUint64 kValueUint64() { return {}; }
-  void set_value_uint64(uint64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_ValueUint64::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_ValueString =
-    ::protozero::proto_utils::FieldMetadata<
-      4,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kString,
-      std::string,
-      MemoryTrackerSnapshot_ProcessSnapshot_MemoryNode_MemoryNodeEntry>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_ValueString kValueString() { return {}; }
-  void set_value_string(const char* data, size_t size) {
-    AppendBytes(FieldMetadata_ValueString::kFieldId, data, size);
-  }
-  void set_value_string(std::string value) {
-    static constexpr uint32_t field_id = FieldMetadata_ValueString::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kString>
-        ::Append(*this, field_id, value);
-  }
-};
-
-} // Namespace.
-} // Namespace.
-} // Namespace.
-#endif  // Include guard.
-// gen_amalgamated begin header: gen/protos/perfetto/trace/ui_state.pbzero.h
-// Autogenerated by the ProtoZero compiler plugin. DO NOT EDIT.
-
-#ifndef PERFETTO_PROTOS_PROTOS_PERFETTO_TRACE_UI_STATE_PROTO_H_
-#define PERFETTO_PROTOS_PROTOS_PERFETTO_TRACE_UI_STATE_PROTO_H_
-
-#include <stddef.h>
-#include <stdint.h>
-
-// gen_amalgamated expanded: #include "perfetto/protozero/field_writer.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/message.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/packed_repeated_fields.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/proto_decoder.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/proto_utils.h"
-
-namespace perfetto {
-namespace protos {
-namespace pbzero {
-
-class UiState_HighlightProcess;
-
-class UiState_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/3, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  UiState_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit UiState_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit UiState_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_timeline_start_ts() const { return at<1>().valid(); }
-  int64_t timeline_start_ts() const { return at<1>().as_int64(); }
-  bool has_timeline_end_ts() const { return at<2>().valid(); }
-  int64_t timeline_end_ts() const { return at<2>().as_int64(); }
-  bool has_highlight_process() const { return at<3>().valid(); }
-  ::protozero::ConstBytes highlight_process() const { return at<3>().as_bytes(); }
-};
-
-class UiState : public ::protozero::Message {
- public:
-  using Decoder = UiState_Decoder;
-  enum : int32_t {
-    kTimelineStartTsFieldNumber = 1,
-    kTimelineEndTsFieldNumber = 2,
-    kHighlightProcessFieldNumber = 3,
-  };
-  using HighlightProcess = ::perfetto::protos::pbzero::UiState_HighlightProcess;
-
-  using FieldMetadata_TimelineStartTs =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt64,
-      int64_t,
-      UiState>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_TimelineStartTs kTimelineStartTs() { return {}; }
-  void set_timeline_start_ts(int64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_TimelineStartTs::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_TimelineEndTs =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kInt64,
-      int64_t,
-      UiState>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_TimelineEndTs kTimelineEndTs() { return {}; }
-  void set_timeline_end_ts(int64_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_TimelineEndTs::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kInt64>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_HighlightProcess =
-    ::protozero::proto_utils::FieldMetadata<
-      3,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kMessage,
-      UiState_HighlightProcess,
-      UiState>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_HighlightProcess kHighlightProcess() { return {}; }
-  template <typename T = UiState_HighlightProcess> T* set_highlight_process() {
-    return BeginNestedMessage<T>(3);
-  }
-
-};
-
-class UiState_HighlightProcess_Decoder : public ::protozero::TypedProtoDecoder</*MAX_FIELD_ID=*/2, /*HAS_NONPACKED_REPEATED_FIELDS=*/false> {
- public:
-  UiState_HighlightProcess_Decoder(const uint8_t* data, size_t len) : TypedProtoDecoder(data, len) {}
-  explicit UiState_HighlightProcess_Decoder(const std::string& raw) : TypedProtoDecoder(reinterpret_cast<const uint8_t*>(raw.data()), raw.size()) {}
-  explicit UiState_HighlightProcess_Decoder(const ::protozero::ConstBytes& raw) : TypedProtoDecoder(raw.data, raw.size) {}
-  bool has_pid() const { return at<1>().valid(); }
-  uint32_t pid() const { return at<1>().as_uint32(); }
-  bool has_cmdline() const { return at<2>().valid(); }
-  ::protozero::ConstChars cmdline() const { return at<2>().as_string(); }
-};
-
-class UiState_HighlightProcess : public ::protozero::Message {
- public:
-  using Decoder = UiState_HighlightProcess_Decoder;
-  enum : int32_t {
-    kPidFieldNumber = 1,
-    kCmdlineFieldNumber = 2,
-  };
-
-  using FieldMetadata_Pid =
-    ::protozero::proto_utils::FieldMetadata<
-      1,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kUint32,
-      uint32_t,
-      UiState_HighlightProcess>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Pid kPid() { return {}; }
-  void set_pid(uint32_t value) {
-    static constexpr uint32_t field_id = FieldMetadata_Pid::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kUint32>
-        ::Append(*this, field_id, value);
-  }
-
-  using FieldMetadata_Cmdline =
-    ::protozero::proto_utils::FieldMetadata<
-      2,
-      ::protozero::proto_utils::RepetitionType::kNotRepeated,
-      ::protozero::proto_utils::ProtoSchemaType::kString,
-      std::string,
-      UiState_HighlightProcess>;
-
-  // Ceci n'est pas une pipe.
-  // This is actually a variable of FieldMetadataHelper<FieldMetadata<...>>
-  // type (and users are expected to use it as such, hence kCamelCase name).
-  // It is declared as a function to keep protozero bindings header-only as
-  // inline constexpr variables are not available until C++17 (while inline
-  // functions are).
-  // TODO(altimin): Use inline variable instead after adopting C++17.  
-  static constexpr FieldMetadata_Cmdline kCmdline() { return {}; }
-  void set_cmdline(const char* data, size_t size) {
-    AppendBytes(FieldMetadata_Cmdline::kFieldId, data, size);
-  }
-  void set_cmdline(std::string value) {
-    static constexpr uint32_t field_id = FieldMetadata_Cmdline::kFieldId;
-    // Call the appropriate protozero::Message::Append(field_id, ...)
-    // method based on the type of the field.
-    ::protozero::internal::FieldWriter<
-      ::protozero::proto_utils::ProtoSchemaType::kString>
-        ::Append(*this, field_id, value);
-  }
-};
-
-} // Namespace.
-} // Namespace.
-} // Namespace.
-#endif  // Include guard.
-// gen_amalgamated begin header: gen/protos/perfetto/trace/track_event/chrome_application_state_info.gen.h
-// DO NOT EDIT. Autogenerated by Perfetto cppgen_plugin
-#ifndef PERFETTO_PROTOS_PROTOS_PERFETTO_TRACE_TRACK_EVENT_CHROME_APPLICATION_STATE_INFO_PROTO_CPP_H_
-#define PERFETTO_PROTOS_PROTOS_PERFETTO_TRACE_TRACK_EVENT_CHROME_APPLICATION_STATE_INFO_PROTO_CPP_H_
-
-#include <stdint.h>
-#include <bitset>
-#include <vector>
-#include <string>
-#include <type_traits>
-
-// gen_amalgamated expanded: #include "perfetto/protozero/cpp_message_obj.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/copyable_ptr.h"
-// gen_amalgamated expanded: #include "perfetto/base/export.h"
-
-namespace perfetto {
-namespace protos {
-namespace gen {
-class ChromeApplicationStateInfo;
-enum ChromeApplicationStateInfo_ChromeApplicationState : int;
-}  // namespace perfetto
-}  // namespace protos
-}  // namespace gen
-
-namespace protozero {
-class Message;
-}  // namespace protozero
-
-namespace perfetto {
-namespace protos {
-namespace gen {
-enum ChromeApplicationStateInfo_ChromeApplicationState : int {
-  ChromeApplicationStateInfo_ChromeApplicationState_APPLICATION_STATE_UNKNOWN = 0,
-  ChromeApplicationStateInfo_ChromeApplicationState_APPLICATION_STATE_HAS_RUNNING_ACTIVITIES = 1,
-  ChromeApplicationStateInfo_ChromeApplicationState_APPLICATION_STATE_HAS_PAUSED_ACTIVITIES = 2,
-  ChromeApplicationStateInfo_ChromeApplicationState_APPLICATION_STATE_HAS_STOPPED_ACTIVITIES = 3,
-  ChromeApplicationStateInfo_ChromeApplicationState_APPLICATION_STATE_HAS_DESTROYED_ACTIVITIES = 4,
-};
-
-class PERFETTO_EXPORT ChromeApplicationStateInfo : public ::protozero::CppMessageObj {
- public:
-  using ChromeApplicationState = ChromeApplicationStateInfo_ChromeApplicationState;
-  static constexpr auto APPLICATION_STATE_UNKNOWN = ChromeApplicationStateInfo_ChromeApplicationState_APPLICATION_STATE_UNKNOWN;
-  static constexpr auto APPLICATION_STATE_HAS_RUNNING_ACTIVITIES = ChromeApplicationStateInfo_ChromeApplicationState_APPLICATION_STATE_HAS_RUNNING_ACTIVITIES;
-  static constexpr auto APPLICATION_STATE_HAS_PAUSED_ACTIVITIES = ChromeApplicationStateInfo_ChromeApplicationState_APPLICATION_STATE_HAS_PAUSED_ACTIVITIES;
-  static constexpr auto APPLICATION_STATE_HAS_STOPPED_ACTIVITIES = ChromeApplicationStateInfo_ChromeApplicationState_APPLICATION_STATE_HAS_STOPPED_ACTIVITIES;
-  static constexpr auto APPLICATION_STATE_HAS_DESTROYED_ACTIVITIES = ChromeApplicationStateInfo_ChromeApplicationState_APPLICATION_STATE_HAS_DESTROYED_ACTIVITIES;
-  static constexpr auto ChromeApplicationState_MIN = ChromeApplicationStateInfo_ChromeApplicationState_APPLICATION_STATE_UNKNOWN;
-  static constexpr auto ChromeApplicationState_MAX = ChromeApplicationStateInfo_ChromeApplicationState_APPLICATION_STATE_HAS_DESTROYED_ACTIVITIES;
-  enum FieldNumbers {
-    kApplicationStateFieldNumber = 1,
-  };
-
-  ChromeApplicationStateInfo();
-  ~ChromeApplicationStateInfo() override;
-  ChromeApplicationStateInfo(ChromeApplicationStateInfo&&) noexcept;
-  ChromeApplicationStateInfo& operator=(ChromeApplicationStateInfo&&);
-  ChromeApplicationStateInfo(const ChromeApplicationStateInfo&);
-  ChromeApplicationStateInfo& operator=(const ChromeApplicationStateInfo&);
-  bool operator==(const ChromeApplicationStateInfo&) const;
-  bool operator!=(const ChromeApplicationStateInfo& other) const { return !(*this == other); }
-
-  bool ParseFromArray(const void*, size_t) override;
-  std::string SerializeAsString() const override;
-  std::vector<uint8_t> SerializeAsArray() const override;
-  void Serialize(::protozero::Message*) const;
-
-  bool has_application_state() const { return _has_field_[1]; }
-  ChromeApplicationStateInfo_ChromeApplicationState application_state() const { return application_state_; }
-  void set_application_state(ChromeApplicationStateInfo_ChromeApplicationState value) { application_state_ = value; _has_field_.set(1); }
-
- private:
-  ChromeApplicationStateInfo_ChromeApplicationState application_state_{};
-
-  // Allows to preserve unknown protobuf fields for compatibility
-  // with future versions of .proto files.
-  std::string unknown_fields_;
-
-  std::bitset<2> _has_field_{};
-};
-
-}  // namespace perfetto
-}  // namespace protos
-}  // namespace gen
-
-#endif  // PERFETTO_PROTOS_PROTOS_PERFETTO_TRACE_TRACK_EVENT_CHROME_APPLICATION_STATE_INFO_PROTO_CPP_H_
-// gen_amalgamated begin header: gen/protos/perfetto/trace/track_event/chrome_compositor_scheduler_state.gen.h
-// DO NOT EDIT. Autogenerated by Perfetto cppgen_plugin
-#ifndef PERFETTO_PROTOS_PROTOS_PERFETTO_TRACE_TRACK_EVENT_CHROME_COMPOSITOR_SCHEDULER_STATE_PROTO_CPP_H_
-#define PERFETTO_PROTOS_PROTOS_PERFETTO_TRACE_TRACK_EVENT_CHROME_COMPOSITOR_SCHEDULER_STATE_PROTO_CPP_H_
-
-#include <stdint.h>
-#include <bitset>
-#include <vector>
-#include <string>
-#include <type_traits>
-
-// gen_amalgamated expanded: #include "perfetto/protozero/cpp_message_obj.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/copyable_ptr.h"
-// gen_amalgamated expanded: #include "perfetto/base/export.h"
-
-namespace perfetto {
-namespace protos {
-namespace gen {
-class CompositorTimingHistory;
-class BeginFrameSourceState;
-class BeginFrameArgs;
-class SourceLocation;
-class BeginFrameObserverState;
-class BeginImplFrameArgs;
-class BeginImplFrameArgs_TimestampsInUs;
-class ChromeCompositorStateMachine;
-class ChromeCompositorStateMachine_MinorState;
-class ChromeCompositorStateMachine_MajorState;
-class ChromeCompositorSchedulerState;
-enum ChromeCompositorSchedulerAction : int;
-enum BeginFrameArgs_BeginFrameArgsType : int;
-enum BeginImplFrameArgs_State : int;
-enum ChromeCompositorStateMachine_MinorState_TreePriority : int;
-enum ChromeCompositorStateMachine_MinorState_ScrollHandlerState : int;
-enum ChromeCompositorStateMachine_MajorState_BeginImplFrameState : int;
-enum ChromeCompositorStateMachine_MajorState_BeginMainFrameState : int;
-enum ChromeCompositorStateMachine_MajorState_LayerTreeFrameSinkState : int;
-enum ChromeCompositorStateMachine_MajorState_ForcedRedrawOnTimeoutState : int;
-enum ChromeCompositorSchedulerState_BeginImplFrameDeadlineMode : int;
-}  // namespace perfetto
-}  // namespace protos
-}  // namespace gen
-
-namespace protozero {
-class Message;
-}  // namespace protozero
-
-namespace perfetto {
-namespace protos {
-namespace gen {
-enum ChromeCompositorSchedulerAction : int {
-  CC_SCHEDULER_ACTION_UNSPECIFIED = 0,
-  CC_SCHEDULER_ACTION_NONE = 1,
-  CC_SCHEDULER_ACTION_SEND_BEGIN_MAIN_FRAME = 2,
-  CC_SCHEDULER_ACTION_COMMIT = 3,
-  CC_SCHEDULER_ACTION_ACTIVATE_SYNC_TREE = 4,
-  CC_SCHEDULER_ACTION_DRAW_IF_POSSIBLE = 5,
-  CC_SCHEDULER_ACTION_DRAW_FORCED = 6,
-  CC_SCHEDULER_ACTION_DRAW_ABORT = 7,
-  CC_SCHEDULER_ACTION_BEGIN_LAYER_TREE_FRAME_SINK_CREATION = 8,
-  CC_SCHEDULER_ACTION_PREPARE_TILES = 9,
-  CC_SCHEDULER_ACTION_INVALIDATE_LAYER_TREE_FRAME_SINK = 10,
-  CC_SCHEDULER_ACTION_PERFORM_IMPL_SIDE_INVALIDATION = 11,
-  CC_SCHEDULER_ACTION_NOTIFY_BEGIN_MAIN_FRAME_NOT_EXPECTED_UNTIL = 12,
-  CC_SCHEDULER_ACTION_NOTIFY_BEGIN_MAIN_FRAME_NOT_EXPECTED_SOON = 13,
-};
-enum BeginFrameArgs_BeginFrameArgsType : int {
-  BeginFrameArgs_BeginFrameArgsType_BEGIN_FRAME_ARGS_TYPE_UNSPECIFIED = 0,
-  BeginFrameArgs_BeginFrameArgsType_BEGIN_FRAME_ARGS_TYPE_INVALID = 1,
-  BeginFrameArgs_BeginFrameArgsType_BEGIN_FRAME_ARGS_TYPE_NORMAL = 2,
-  BeginFrameArgs_BeginFrameArgsType_BEGIN_FRAME_ARGS_TYPE_MISSED = 3,
-};
-enum BeginImplFrameArgs_State : int {
-  BeginImplFrameArgs_State_BEGIN_FRAME_FINISHED = 0,
-  BeginImplFrameArgs_State_BEGIN_FRAME_USING = 1,
-};
-enum ChromeCompositorStateMachine_MinorState_TreePriority : int {
-  ChromeCompositorStateMachine_MinorState_TreePriority_TREE_PRIORITY_UNSPECIFIED = 0,
-  ChromeCompositorStateMachine_MinorState_TreePriority_TREE_PRIORITY_SAME_PRIORITY_FOR_BOTH_TREES = 1,
-  ChromeCompositorStateMachine_MinorState_TreePriority_TREE_PRIORITY_SMOOTHNESS_TAKES_PRIORITY = 2,
-  ChromeCompositorStateMachine_MinorState_TreePriority_TREE_PRIORITY_NEW_CONTENT_TAKES_PRIORITY = 3,
-};
-enum ChromeCompositorStateMachine_MinorState_ScrollHandlerState : int {
-  ChromeCompositorStateMachine_MinorState_ScrollHandlerState_SCROLL_HANDLER_UNSPECIFIED = 0,
-  ChromeCompositorStateMachine_MinorState_ScrollHandlerState_SCROLL_AFFECTS_SCROLL_HANDLER = 1,
-  ChromeCompositorStateMachine_MinorState_ScrollHandlerState_SCROLL_DOES_NOT_AFFECT_SCROLL_HANDLER = 2,
-};
-enum ChromeCompositorStateMachine_MajorState_BeginImplFrameState : int {
-  ChromeCompositorStateMachine_MajorState_BeginImplFrameState_BEGIN_IMPL_FRAME_UNSPECIFIED = 0,
-  ChromeCompositorStateMachine_MajorState_BeginImplFrameState_BEGIN_IMPL_FRAME_IDLE = 1,
-  ChromeCompositorStateMachine_MajorState_BeginImplFrameState_BEGIN_IMPL_FRAME_INSIDE_BEGIN_FRAME = 2,
-  ChromeCompositorStateMachine_MajorState_BeginImplFrameState_BEGIN_IMPL_FRAME_INSIDE_DEADLINE = 3,
-};
-enum ChromeCompositorStateMachine_MajorState_BeginMainFrameState : int {
-  ChromeCompositorStateMachine_MajorState_BeginMainFrameState_BEGIN_MAIN_FRAME_UNSPECIFIED = 0,
-  ChromeCompositorStateMachine_MajorState_BeginMainFrameState_BEGIN_MAIN_FRAME_IDLE = 1,
-  ChromeCompositorStateMachine_MajorState_BeginMainFrameState_BEGIN_MAIN_FRAME_SENT = 2,
-  ChromeCompositorStateMachine_MajorState_BeginMainFrameState_BEGIN_MAIN_FRAME_READY_TO_COMMIT = 3,
-};
-enum ChromeCompositorStateMachine_MajorState_LayerTreeFrameSinkState : int {
-  ChromeCompositorStateMachine_MajorState_LayerTreeFrameSinkState_LAYER_TREE_FRAME_UNSPECIFIED = 0,
-  ChromeCompositorStateMachine_MajorState_LayerTreeFrameSinkState_LAYER_TREE_FRAME_NONE = 1,
-  ChromeCompositorStateMachine_MajorState_LayerTreeFrameSinkState_LAYER_TREE_FRAME_ACTIVE = 2,
-  ChromeCompositorStateMachine_MajorState_LayerTreeFrameSinkState_LAYER_TREE_FRAME_CREATING = 3,
-  ChromeCompositorStateMachine_MajorState_LayerTreeFrameSinkState_LAYER_TREE_FRAME_WAITING_FOR_FIRST_COMMIT = 4,
-  ChromeCompositorStateMachine_MajorState_LayerTreeFrameSinkState_LAYER_TREE_FRAME_WAITING_FOR_FIRST_ACTIVATION = 5,
-};
-enum ChromeCompositorStateMachine_MajorState_ForcedRedrawOnTimeoutState : int {
-  ChromeCompositorStateMachine_MajorState_ForcedRedrawOnTimeoutState_FORCED_REDRAW_UNSPECIFIED = 0,
-  ChromeCompositorStateMachine_MajorState_ForcedRedrawOnTimeoutState_FORCED_REDRAW_IDLE = 1,
-  ChromeCompositorStateMachine_MajorState_ForcedRedrawOnTimeoutState_FORCED_REDRAW_WAITING_FOR_COMMIT = 2,
-  ChromeCompositorStateMachine_MajorState_ForcedRedrawOnTimeoutState_FORCED_REDRAW_WAITING_FOR_ACTIVATION = 3,
-  ChromeCompositorStateMachine_MajorState_ForcedRedrawOnTimeoutState_FORCED_REDRAW_WAITING_FOR_DRAW = 4,
-};
-enum ChromeCompositorSchedulerState_BeginImplFrameDeadlineMode : int {
-  ChromeCompositorSchedulerState_BeginImplFrameDeadlineMode_DEADLINE_MODE_UNSPECIFIED = 0,
-  ChromeCompositorSchedulerState_BeginImplFrameDeadlineMode_DEADLINE_MODE_NONE = 1,
-  ChromeCompositorSchedulerState_BeginImplFrameDeadlineMode_DEADLINE_MODE_IMMEDIATE = 2,
-  ChromeCompositorSchedulerState_BeginImplFrameDeadlineMode_DEADLINE_MODE_REGULAR = 3,
-  ChromeCompositorSchedulerState_BeginImplFrameDeadlineMode_DEADLINE_MODE_LATE = 4,
-  ChromeCompositorSchedulerState_BeginImplFrameDeadlineMode_DEADLINE_MODE_BLOCKED = 5,
-};
-
-class PERFETTO_EXPORT CompositorTimingHistory : public ::protozero::CppMessageObj {
- public:
-  enum FieldNumbers {
-    kBeginMainFrameQueueCriticalEstimateDeltaUsFieldNumber = 1,
-    kBeginMainFrameQueueNotCriticalEstimateDeltaUsFieldNumber = 2,
-    kBeginMainFrameStartToReadyToCommitEstimateDeltaUsFieldNumber = 3,
-    kCommitToReadyToActivateEstimateDeltaUsFieldNumber = 4,
-    kPrepareTilesEstimateDeltaUsFieldNumber = 5,
-    kActivateEstimateDeltaUsFieldNumber = 6,
-    kDrawEstimateDeltaUsFieldNumber = 7,
-  };
-
-  CompositorTimingHistory();
-  ~CompositorTimingHistory() override;
-  CompositorTimingHistory(CompositorTimingHistory&&) noexcept;
-  CompositorTimingHistory& operator=(CompositorTimingHistory&&);
-  CompositorTimingHistory(const CompositorTimingHistory&);
-  CompositorTimingHistory& operator=(const CompositorTimingHistory&);
-  bool operator==(const CompositorTimingHistory&) const;
-  bool operator!=(const CompositorTimingHistory& other) const { return !(*this == other); }
-
-  bool ParseFromArray(const void*, size_t) override;
-  std::string SerializeAsString() const override;
-  std::vector<uint8_t> SerializeAsArray() const override;
-  void Serialize(::protozero::Message*) const;
-
-  bool has_begin_main_frame_queue_critical_estimate_delta_us() const { return _has_field_[1]; }
-  int64_t begin_main_frame_queue_critical_estimate_delta_us() const { return begin_main_frame_queue_critical_estimate_delta_us_; }
-  void set_begin_main_frame_queue_critical_estimate_delta_us(int64_t value) { begin_main_frame_queue_critical_estimate_delta_us_ = value; _has_field_.set(1); }
-
-  bool has_begin_main_frame_queue_not_critical_estimate_delta_us() const { return _has_field_[2]; }
-  int64_t begin_main_frame_queue_not_critical_estimate_delta_us() const { return begin_main_frame_queue_not_critical_estimate_delta_us_; }
-  void set_begin_main_frame_queue_not_critical_estimate_delta_us(int64_t value) { begin_main_frame_queue_not_critical_estimate_delta_us_ = value; _has_field_.set(2); }
-
-  bool has_begin_main_frame_start_to_ready_to_commit_estimate_delta_us() const { return _has_field_[3]; }
-  int64_t begin_main_frame_start_to_ready_to_commit_estimate_delta_us() const { return begin_main_frame_start_to_ready_to_commit_estimate_delta_us_; }
-  void set_begin_main_frame_start_to_ready_to_commit_estimate_delta_us(int64_t value) { begin_main_frame_start_to_ready_to_commit_estimate_delta_us_ = value; _has_field_.set(3); }
-
-  bool has_commit_to_ready_to_activate_estimate_delta_us() const { return _has_field_[4]; }
-  int64_t commit_to_ready_to_activate_estimate_delta_us() const { return commit_to_ready_to_activate_estimate_delta_us_; }
-  void set_commit_to_ready_to_activate_estimate_delta_us(int64_t value) { commit_to_ready_to_activate_estimate_delta_us_ = value; _has_field_.set(4); }
-
-  bool has_prepare_tiles_estimate_delta_us() const { return _has_field_[5]; }
-  int64_t prepare_tiles_estimate_delta_us() const { return prepare_tiles_estimate_delta_us_; }
-  void set_prepare_tiles_estimate_delta_us(int64_t value) { prepare_tiles_estimate_delta_us_ = value; _has_field_.set(5); }
-
-  bool has_activate_estimate_delta_us() const { return _has_field_[6]; }
-  int64_t activate_estimate_delta_us() const { return activate_estimate_delta_us_; }
-  void set_activate_estimate_delta_us(int64_t value) { activate_estimate_delta_us_ = value; _has_field_.set(6); }
-
-  bool has_draw_estimate_delta_us() const { return _has_field_[7]; }
-  int64_t draw_estimate_delta_us() const { return draw_estimate_delta_us_; }
-  void set_draw_estimate_delta_us(int64_t value) { draw_estimate_delta_us_ = value; _has_field_.set(7); }
-
- private:
-  int64_t begin_main_frame_queue_critical_estimate_delta_us_{};
-  int64_t begin_main_frame_queue_not_critical_estimate_delta_us_{};
-  int64_t begin_main_frame_start_to_ready_to_commit_estimate_delta_us_{};
-  int64_t commit_to_ready_to_activate_estimate_delta_us_{};
-  int64_t prepare_tiles_estimate_delta_us_{};
-  int64_t activate_estimate_delta_us_{};
-  int64_t draw_estimate_delta_us_{};
-
-  // Allows to preserve unknown protobuf fields for compatibility
-  // with future versions of .proto files.
-  std::string unknown_fields_;
-
-  std::bitset<8> _has_field_{};
-};
-
-
-class PERFETTO_EXPORT BeginFrameSourceState : public ::protozero::CppMessageObj {
- public:
-  enum FieldNumbers {
-    kSourceIdFieldNumber = 1,
-    kPausedFieldNumber = 2,
-    kNumObserversFieldNumber = 3,
-    kLastBeginFrameArgsFieldNumber = 4,
-  };
-
-  BeginFrameSourceState();
-  ~BeginFrameSourceState() override;
-  BeginFrameSourceState(BeginFrameSourceState&&) noexcept;
-  BeginFrameSourceState& operator=(BeginFrameSourceState&&);
-  BeginFrameSourceState(const BeginFrameSourceState&);
-  BeginFrameSourceState& operator=(const BeginFrameSourceState&);
-  bool operator==(const BeginFrameSourceState&) const;
-  bool operator!=(const BeginFrameSourceState& other) const { return !(*this == other); }
-
-  bool ParseFromArray(const void*, size_t) override;
-  std::string SerializeAsString() const override;
-  std::vector<uint8_t> SerializeAsArray() const override;
-  void Serialize(::protozero::Message*) const;
-
-  bool has_source_id() const { return _has_field_[1]; }
-  uint32_t source_id() const { return source_id_; }
-  void set_source_id(uint32_t value) { source_id_ = value; _has_field_.set(1); }
-
-  bool has_paused() const { return _has_field_[2]; }
-  bool paused() const { return paused_; }
-  void set_paused(bool value) { paused_ = value; _has_field_.set(2); }
-
-  bool has_num_observers() const { return _has_field_[3]; }
-  uint32_t num_observers() const { return num_observers_; }
-  void set_num_observers(uint32_t value) { num_observers_ = value; _has_field_.set(3); }
-
-  bool has_last_begin_frame_args() const { return _has_field_[4]; }
-  const BeginFrameArgs& last_begin_frame_args() const { return *last_begin_frame_args_; }
-  BeginFrameArgs* mutable_last_begin_frame_args() { _has_field_.set(4); return last_begin_frame_args_.get(); }
-
- private:
-  uint32_t source_id_{};
-  bool paused_{};
-  uint32_t num_observers_{};
-  ::protozero::CopyablePtr<BeginFrameArgs> last_begin_frame_args_;
-
-  // Allows to preserve unknown protobuf fields for compatibility
-  // with future versions of .proto files.
-  std::string unknown_fields_;
-
-  std::bitset<5> _has_field_{};
-};
-
-
-class PERFETTO_EXPORT BeginFrameArgs : public ::protozero::CppMessageObj {
- public:
-  using BeginFrameArgsType = BeginFrameArgs_BeginFrameArgsType;
-  static constexpr auto BEGIN_FRAME_ARGS_TYPE_UNSPECIFIED = BeginFrameArgs_BeginFrameArgsType_BEGIN_FRAME_ARGS_TYPE_UNSPECIFIED;
-  static constexpr auto BEGIN_FRAME_ARGS_TYPE_INVALID = BeginFrameArgs_BeginFrameArgsType_BEGIN_FRAME_ARGS_TYPE_INVALID;
-  static constexpr auto BEGIN_FRAME_ARGS_TYPE_NORMAL = BeginFrameArgs_BeginFrameArgsType_BEGIN_FRAME_ARGS_TYPE_NORMAL;
-  static constexpr auto BEGIN_FRAME_ARGS_TYPE_MISSED = BeginFrameArgs_BeginFrameArgsType_BEGIN_FRAME_ARGS_TYPE_MISSED;
-  static constexpr auto BeginFrameArgsType_MIN = BeginFrameArgs_BeginFrameArgsType_BEGIN_FRAME_ARGS_TYPE_UNSPECIFIED;
-  static constexpr auto BeginFrameArgsType_MAX = BeginFrameArgs_BeginFrameArgsType_BEGIN_FRAME_ARGS_TYPE_MISSED;
-  enum FieldNumbers {
-    kTypeFieldNumber = 1,
-    kSourceIdFieldNumber = 2,
-    kSequenceNumberFieldNumber = 3,
-    kFrameTimeUsFieldNumber = 4,
-    kDeadlineUsFieldNumber = 5,
-    kIntervalDeltaUsFieldNumber = 6,
-    kOnCriticalPathFieldNumber = 7,
-    kAnimateOnlyFieldNumber = 8,
-    kSourceLocationIidFieldNumber = 9,
-    kSourceLocationFieldNumber = 10,
-  };
-
-  BeginFrameArgs();
-  ~BeginFrameArgs() override;
-  BeginFrameArgs(BeginFrameArgs&&) noexcept;
-  BeginFrameArgs& operator=(BeginFrameArgs&&);
-  BeginFrameArgs(const BeginFrameArgs&);
-  BeginFrameArgs& operator=(const BeginFrameArgs&);
-  bool operator==(const BeginFrameArgs&) const;
-  bool operator!=(const BeginFrameArgs& other) const { return !(*this == other); }
-
-  bool ParseFromArray(const void*, size_t) override;
-  std::string SerializeAsString() const override;
-  std::vector<uint8_t> SerializeAsArray() const override;
-  void Serialize(::protozero::Message*) const;
-
-  bool has_type() const { return _has_field_[1]; }
-  BeginFrameArgs_BeginFrameArgsType type() const { return type_; }
-  void set_type(BeginFrameArgs_BeginFrameArgsType value) { type_ = value; _has_field_.set(1); }
-
-  bool has_source_id() const { return _has_field_[2]; }
-  uint64_t source_id() const { return source_id_; }
-  void set_source_id(uint64_t value) { source_id_ = value; _has_field_.set(2); }
-
-  bool has_sequence_number() const { return _has_field_[3]; }
-  uint64_t sequence_number() const { return sequence_number_; }
-  void set_sequence_number(uint64_t value) { sequence_number_ = value; _has_field_.set(3); }
-
-  bool has_frame_time_us() const { return _has_field_[4]; }
-  int64_t frame_time_us() const { return frame_time_us_; }
-  void set_frame_time_us(int64_t value) { frame_time_us_ = value; _has_field_.set(4); }
-
-  bool has_deadline_us() const { return _has_field_[5]; }
-  int64_t deadline_us() const { return deadline_us_; }
-  void set_deadline_us(int64_t value) { deadline_us_ = value; _has_field_.set(5); }
-
-  bool has_interval_delta_us() const { return _has_field_[6]; }
-  int64_t interval_delta_us() const { return interval_delta_us_; }
-  void set_interval_delta_us(int64_t value) { interval_delta_us_ = value; _has_field_.set(6); }
-
-  bool has_on_critical_path() const { return _has_field_[7]; }
-  bool on_critical_path() const { return on_critical_path_; }
-  void set_on_critical_path(bool value) { on_critical_path_ = value; _has_field_.set(7); }
-
-  bool has_animate_only() const { return _has_field_[8]; }
-  bool animate_only() const { return animate_only_; }
-  void set_animate_only(bool value) { animate_only_ = value; _has_field_.set(8); }
-
-  bool has_source_location_iid() const { return _has_field_[9]; }
-  uint64_t source_location_iid() const { return source_location_iid_; }
-  void set_source_location_iid(uint64_t value) { source_location_iid_ = value; _has_field_.set(9); }
-
-  bool has_source_location() const { return _has_field_[10]; }
-  const SourceLocation& source_location() const { return *source_location_; }
-  SourceLocation* mutable_source_location() { _has_field_.set(10); return source_location_.get(); }
-
- private:
-  BeginFrameArgs_BeginFrameArgsType type_{};
-  uint64_t source_id_{};
-  uint64_t sequence_number_{};
-  int64_t frame_time_us_{};
-  int64_t deadline_us_{};
-  int64_t interval_delta_us_{};
-  bool on_critical_path_{};
-  bool animate_only_{};
-  uint64_t source_location_iid_{};
-  ::protozero::CopyablePtr<SourceLocation> source_location_;
-
-  // Allows to preserve unknown protobuf fields for compatibility
-  // with future versions of .proto files.
-  std::string unknown_fields_;
-
-  std::bitset<11> _has_field_{};
-};
-
-
-class PERFETTO_EXPORT BeginFrameObserverState : public ::protozero::CppMessageObj {
- public:
-  enum FieldNumbers {
-    kDroppedBeginFrameArgsFieldNumber = 1,
-    kLastBeginFrameArgsFieldNumber = 2,
-  };
-
-  BeginFrameObserverState();
-  ~BeginFrameObserverState() override;
-  BeginFrameObserverState(BeginFrameObserverState&&) noexcept;
-  BeginFrameObserverState& operator=(BeginFrameObserverState&&);
-  BeginFrameObserverState(const BeginFrameObserverState&);
-  BeginFrameObserverState& operator=(const BeginFrameObserverState&);
-  bool operator==(const BeginFrameObserverState&) const;
-  bool operator!=(const BeginFrameObserverState& other) const { return !(*this == other); }
-
-  bool ParseFromArray(const void*, size_t) override;
-  std::string SerializeAsString() const override;
-  std::vector<uint8_t> SerializeAsArray() const override;
-  void Serialize(::protozero::Message*) const;
-
-  bool has_dropped_begin_frame_args() const { return _has_field_[1]; }
-  int64_t dropped_begin_frame_args() const { return dropped_begin_frame_args_; }
-  void set_dropped_begin_frame_args(int64_t value) { dropped_begin_frame_args_ = value; _has_field_.set(1); }
-
-  bool has_last_begin_frame_args() const { return _has_field_[2]; }
-  const BeginFrameArgs& last_begin_frame_args() const { return *last_begin_frame_args_; }
-  BeginFrameArgs* mutable_last_begin_frame_args() { _has_field_.set(2); return last_begin_frame_args_.get(); }
-
- private:
-  int64_t dropped_begin_frame_args_{};
-  ::protozero::CopyablePtr<BeginFrameArgs> last_begin_frame_args_;
-
-  // Allows to preserve unknown protobuf fields for compatibility
-  // with future versions of .proto files.
-  std::string unknown_fields_;
-
-  std::bitset<3> _has_field_{};
-};
-
-
-class PERFETTO_EXPORT BeginImplFrameArgs : public ::protozero::CppMessageObj {
- public:
-  using TimestampsInUs = BeginImplFrameArgs_TimestampsInUs;
-  using State = BeginImplFrameArgs_State;
-  static constexpr auto BEGIN_FRAME_FINISHED = BeginImplFrameArgs_State_BEGIN_FRAME_FINISHED;
-  static constexpr auto BEGIN_FRAME_USING = BeginImplFrameArgs_State_BEGIN_FRAME_USING;
-  static constexpr auto State_MIN = BeginImplFrameArgs_State_BEGIN_FRAME_FINISHED;
-  static constexpr auto State_MAX = BeginImplFrameArgs_State_BEGIN_FRAME_USING;
-  enum FieldNumbers {
-    kUpdatedAtUsFieldNumber = 1,
-    kFinishedAtUsFieldNumber = 2,
-    kStateFieldNumber = 3,
-    kCurrentArgsFieldNumber = 4,
-    kLastArgsFieldNumber = 5,
-    kTimestampsInUsFieldNumber = 6,
-  };
-
-  BeginImplFrameArgs();
-  ~BeginImplFrameArgs() override;
-  BeginImplFrameArgs(BeginImplFrameArgs&&) noexcept;
-  BeginImplFrameArgs& operator=(BeginImplFrameArgs&&);
-  BeginImplFrameArgs(const BeginImplFrameArgs&);
-  BeginImplFrameArgs& operator=(const BeginImplFrameArgs&);
-  bool operator==(const BeginImplFrameArgs&) const;
-  bool operator!=(const BeginImplFrameArgs& other) const { return !(*this == other); }
-
-  bool ParseFromArray(const void*, size_t) override;
-  std::string SerializeAsString() const override;
-  std::vector<uint8_t> SerializeAsArray() const override;
-  void Serialize(::protozero::Message*) const;
-
-  bool has_updated_at_us() const { return _has_field_[1]; }
-  int64_t updated_at_us() const { return updated_at_us_; }
-  void set_updated_at_us(int64_t value) { updated_at_us_ = value; _has_field_.set(1); }
-
-  bool has_finished_at_us() const { return _has_field_[2]; }
-  int64_t finished_at_us() const { return finished_at_us_; }
-  void set_finished_at_us(int64_t value) { finished_at_us_ = value; _has_field_.set(2); }
-
-  bool has_state() const { return _has_field_[3]; }
-  BeginImplFrameArgs_State state() const { return state_; }
-  void set_state(BeginImplFrameArgs_State value) { state_ = value; _has_field_.set(3); }
-
-  bool has_current_args() const { return _has_field_[4]; }
-  const BeginFrameArgs& current_args() const { return *current_args_; }
-  BeginFrameArgs* mutable_current_args() { _has_field_.set(4); return current_args_.get(); }
-
-  bool has_last_args() const { return _has_field_[5]; }
-  const BeginFrameArgs& last_args() const { return *last_args_; }
-  BeginFrameArgs* mutable_last_args() { _has_field_.set(5); return last_args_.get(); }
-
-  bool has_timestamps_in_us() const { return _has_field_[6]; }
-  const BeginImplFrameArgs_TimestampsInUs& timestamps_in_us() const { return *timestamps_in_us_; }
-  BeginImplFrameArgs_TimestampsInUs* mutable_timestamps_in_us() { _has_field_.set(6); return timestamps_in_us_.get(); }
-
- private:
-  int64_t updated_at_us_{};
-  int64_t finished_at_us_{};
-  BeginImplFrameArgs_State state_{};
-  ::protozero::CopyablePtr<BeginFrameArgs> current_args_;
-  ::protozero::CopyablePtr<BeginFrameArgs> last_args_;
-  ::protozero::CopyablePtr<BeginImplFrameArgs_TimestampsInUs> timestamps_in_us_;
-
-  // Allows to preserve unknown protobuf fields for compatibility
-  // with future versions of .proto files.
-  std::string unknown_fields_;
-
-  std::bitset<7> _has_field_{};
-};
-
-
-class PERFETTO_EXPORT BeginImplFrameArgs_TimestampsInUs : public ::protozero::CppMessageObj {
- public:
-  enum FieldNumbers {
-    kIntervalDeltaFieldNumber = 1,
-    kNowToDeadlineDeltaFieldNumber = 2,
-    kFrameTimeToNowDeltaFieldNumber = 3,
-    kFrameTimeToDeadlineDeltaFieldNumber = 4,
-    kNowFieldNumber = 5,
-    kFrameTimeFieldNumber = 6,
-    kDeadlineFieldNumber = 7,
-  };
-
-  BeginImplFrameArgs_TimestampsInUs();
-  ~BeginImplFrameArgs_TimestampsInUs() override;
-  BeginImplFrameArgs_TimestampsInUs(BeginImplFrameArgs_TimestampsInUs&&) noexcept;
-  BeginImplFrameArgs_TimestampsInUs& operator=(BeginImplFrameArgs_TimestampsInUs&&);
-  BeginImplFrameArgs_TimestampsInUs(const BeginImplFrameArgs_TimestampsInUs&);
-  BeginImplFrameArgs_TimestampsInUs& operator=(const BeginImplFrameArgs_TimestampsInUs&);
-  bool operator==(const BeginImplFrameArgs_TimestampsInUs&) const;
-  bool operator!=(const BeginImplFrameArgs_TimestampsInUs& other) const { return !(*this == other); }
-
-  bool ParseFromArray(const void*, size_t) override;
-  std::string SerializeAsString() const override;
-  std::vector<uint8_t> SerializeAsArray() const override;
-  void Serialize(::protozero::Message*) const;
-
-  bool has_interval_delta() const { return _has_field_[1]; }
-  int64_t interval_delta() const { return interval_delta_; }
-  void set_interval_delta(int64_t value) { interval_delta_ = value; _has_field_.set(1); }
-
-  bool has_now_to_deadline_delta() const { return _has_field_[2]; }
-  int64_t now_to_deadline_delta() const { return now_to_deadline_delta_; }
-  void set_now_to_deadline_delta(int64_t value) { now_to_deadline_delta_ = value; _has_field_.set(2); }
-
-  bool has_frame_time_to_now_delta() const { return _has_field_[3]; }
-  int64_t frame_time_to_now_delta() const { return frame_time_to_now_delta_; }
-  void set_frame_time_to_now_delta(int64_t value) { frame_time_to_now_delta_ = value; _has_field_.set(3); }
-
-  bool has_frame_time_to_deadline_delta() const { return _has_field_[4]; }
-  int64_t frame_time_to_deadline_delta() const { return frame_time_to_deadline_delta_; }
-  void set_frame_time_to_deadline_delta(int64_t value) { frame_time_to_deadline_delta_ = value; _has_field_.set(4); }
-
-  bool has_now() const { return _has_field_[5]; }
-  int64_t now() const { return now_; }
-  void set_now(int64_t value) { now_ = value; _has_field_.set(5); }
-
-  bool has_frame_time() const { return _has_field_[6]; }
-  int64_t frame_time() const { return frame_time_; }
-  void set_frame_time(int64_t value) { frame_time_ = value; _has_field_.set(6); }
-
-  bool has_deadline() const { return _has_field_[7]; }
-  int64_t deadline() const { return deadline_; }
-  void set_deadline(int64_t value) { deadline_ = value; _has_field_.set(7); }
-
- private:
-  int64_t interval_delta_{};
-  int64_t now_to_deadline_delta_{};
-  int64_t frame_time_to_now_delta_{};
-  int64_t frame_time_to_deadline_delta_{};
-  int64_t now_{};
-  int64_t frame_time_{};
-  int64_t deadline_{};
-
-  // Allows to preserve unknown protobuf fields for compatibility
-  // with future versions of .proto files.
-  std::string unknown_fields_;
-
-  std::bitset<8> _has_field_{};
-};
-
-
-class PERFETTO_EXPORT ChromeCompositorStateMachine : public ::protozero::CppMessageObj {
- public:
-  using MajorState = ChromeCompositorStateMachine_MajorState;
-  using MinorState = ChromeCompositorStateMachine_MinorState;
-  enum FieldNumbers {
-    kMajorStateFieldNumber = 1,
-    kMinorStateFieldNumber = 2,
-  };
-
-  ChromeCompositorStateMachine();
-  ~ChromeCompositorStateMachine() override;
-  ChromeCompositorStateMachine(ChromeCompositorStateMachine&&) noexcept;
-  ChromeCompositorStateMachine& operator=(ChromeCompositorStateMachine&&);
-  ChromeCompositorStateMachine(const ChromeCompositorStateMachine&);
-  ChromeCompositorStateMachine& operator=(const ChromeCompositorStateMachine&);
-  bool operator==(const ChromeCompositorStateMachine&) const;
-  bool operator!=(const ChromeCompositorStateMachine& other) const { return !(*this == other); }
-
-  bool ParseFromArray(const void*, size_t) override;
-  std::string SerializeAsString() const override;
-  std::vector<uint8_t> SerializeAsArray() const override;
-  void Serialize(::protozero::Message*) const;
-
-  bool has_major_state() const { return _has_field_[1]; }
-  const ChromeCompositorStateMachine_MajorState& major_state() const { return *major_state_; }
-  ChromeCompositorStateMachine_MajorState* mutable_major_state() { _has_field_.set(1); return major_state_.get(); }
-
-  bool has_minor_state() const { return _has_field_[2]; }
-  const ChromeCompositorStateMachine_MinorState& minor_state() const { return *minor_state_; }
-  ChromeCompositorStateMachine_MinorState* mutable_minor_state() { _has_field_.set(2); return minor_state_.get(); }
-
- private:
-  ::protozero::CopyablePtr<ChromeCompositorStateMachine_MajorState> major_state_;
-  ::protozero::CopyablePtr<ChromeCompositorStateMachine_MinorState> minor_state_;
-
-  // Allows to preserve unknown protobuf fields for compatibility
-  // with future versions of .proto files.
-  std::string unknown_fields_;
-
-  std::bitset<3> _has_field_{};
-};
-
-
-class PERFETTO_EXPORT ChromeCompositorStateMachine_MinorState : public ::protozero::CppMessageObj {
- public:
-  using TreePriority = ChromeCompositorStateMachine_MinorState_TreePriority;
-  static constexpr auto TREE_PRIORITY_UNSPECIFIED = ChromeCompositorStateMachine_MinorState_TreePriority_TREE_PRIORITY_UNSPECIFIED;
-  static constexpr auto TREE_PRIORITY_SAME_PRIORITY_FOR_BOTH_TREES = ChromeCompositorStateMachine_MinorState_TreePriority_TREE_PRIORITY_SAME_PRIORITY_FOR_BOTH_TREES;
-  static constexpr auto TREE_PRIORITY_SMOOTHNESS_TAKES_PRIORITY = ChromeCompositorStateMachine_MinorState_TreePriority_TREE_PRIORITY_SMOOTHNESS_TAKES_PRIORITY;
-  static constexpr auto TREE_PRIORITY_NEW_CONTENT_TAKES_PRIORITY = ChromeCompositorStateMachine_MinorState_TreePriority_TREE_PRIORITY_NEW_CONTENT_TAKES_PRIORITY;
-  static constexpr auto TreePriority_MIN = ChromeCompositorStateMachine_MinorState_TreePriority_TREE_PRIORITY_UNSPECIFIED;
-  static constexpr auto TreePriority_MAX = ChromeCompositorStateMachine_MinorState_TreePriority_TREE_PRIORITY_NEW_CONTENT_TAKES_PRIORITY;
-  using ScrollHandlerState = ChromeCompositorStateMachine_MinorState_ScrollHandlerState;
-  static constexpr auto SCROLL_HANDLER_UNSPECIFIED = ChromeCompositorStateMachine_MinorState_ScrollHandlerState_SCROLL_HANDLER_UNSPECIFIED;
-  static constexpr auto SCROLL_AFFECTS_SCROLL_HANDLER = ChromeCompositorStateMachine_MinorState_ScrollHandlerState_SCROLL_AFFECTS_SCROLL_HANDLER;
-  static constexpr auto SCROLL_DOES_NOT_AFFECT_SCROLL_HANDLER = ChromeCompositorStateMachine_MinorState_ScrollHandlerState_SCROLL_DOES_NOT_AFFECT_SCROLL_HANDLER;
-  static constexpr auto ScrollHandlerState_MIN = ChromeCompositorStateMachine_MinorState_ScrollHandlerState_SCROLL_HANDLER_UNSPECIFIED;
-  static constexpr auto ScrollHandlerState_MAX = ChromeCompositorStateMachine_MinorState_ScrollHandlerState_SCROLL_DOES_NOT_AFFECT_SCROLL_HANDLER;
-  enum FieldNumbers {
-    kCommitCountFieldNumber = 1,
-    kCurrentFrameNumberFieldNumber = 2,
-    kLastFrameNumberSubmitPerformedFieldNumber = 3,
-    kLastFrameNumberDrawPerformedFieldNumber = 4,
-    kLastFrameNumberBeginMainFrameSentFieldNumber = 5,
-    kDidDrawFieldNumber = 6,
-    kDidSendBeginMainFrameForCurrentFrameFieldNumber = 7,
-    kDidNotifyBeginMainFrameNotExpectedUntilFieldNumber = 8,
-    kDidNotifyBeginMainFrameNotExpectedSoonFieldNumber = 9,
-    kWantsBeginMainFrameNotExpectedFieldNumber = 10,
-    kDidCommitDuringFrameFieldNumber = 11,
-    kDidInvalidateLayerTreeFrameSinkFieldNumber = 12,
-    kDidPerformImplSideInvalidaionFieldNumber = 13,
-    kDidPrepareTilesFieldNumber = 14,
-    kConsecutiveCheckerboardAnimationsFieldNumber = 15,
-    kPendingSubmitFramesFieldNumber = 16,
-    kSubmitFramesWithCurrentLayerTreeFrameSinkFieldNumber = 17,
-    kNeedsRedrawFieldNumber = 18,
-    kNeedsPrepareTilesFieldNumber = 19,
-    kNeedsBeginMainFrameFieldNumber = 20,
-    kNeedsOneBeginImplFrameFieldNumber = 21,
-    kVisibleFieldNumber = 22,
-    kBeginFrameSourcePausedFieldNumber = 23,
-    kCanDrawFieldNumber = 24,
-    kResourcelessDrawFieldNumber = 25,
-    kHasPendingTreeFieldNumber = 26,
-    kPendingTreeIsReadyForActivationFieldNumber = 27,
-    kActiveTreeNeedsFirstDrawFieldNumber = 28,
-    kActiveTreeIsReadyToDrawFieldNumber = 29,
-    kDidCreateAndInitializeFirstLayerTreeFrameSinkFieldNumber = 30,
-    kTreePriorityFieldNumber = 31,
-    kScrollHandlerStateFieldNumber = 32,
-    kCriticalBeginMainFrameToActivateIsFastFieldNumber = 33,
-    kMainThreadMissedLastDeadlineFieldNumber = 34,
-    kSkipNextBeginMainFrameToReduceLatencyFieldNumber = 35,
-    kVideoNeedsBeginFramesFieldNumber = 36,
-    kDeferBeginMainFrameFieldNumber = 37,
-    kLastCommitHadNoUpdatesFieldNumber = 38,
-    kDidDrawInLastFrameFieldNumber = 39,
-    kDidSubmitInLastFrameFieldNumber = 40,
-    kNeedsImplSideInvalidationFieldNumber = 41,
-    kCurrentPendingTreeIsImplSideFieldNumber = 42,
-    kPreviousPendingTreeWasImplSideFieldNumber = 43,
-    kProcessingAnimationWorkletsForActiveTreeFieldNumber = 44,
-    kProcessingAnimationWorkletsForPendingTreeFieldNumber = 45,
-    kProcessingPaintWorkletsForPendingTreeFieldNumber = 46,
-  };
-
-  ChromeCompositorStateMachine_MinorState();
-  ~ChromeCompositorStateMachine_MinorState() override;
-  ChromeCompositorStateMachine_MinorState(ChromeCompositorStateMachine_MinorState&&) noexcept;
-  ChromeCompositorStateMachine_MinorState& operator=(ChromeCompositorStateMachine_MinorState&&);
-  ChromeCompositorStateMachine_MinorState(const ChromeCompositorStateMachine_MinorState&);
-  ChromeCompositorStateMachine_MinorState& operator=(const ChromeCompositorStateMachine_MinorState&);
-  bool operator==(const ChromeCompositorStateMachine_MinorState&) const;
-  bool operator!=(const ChromeCompositorStateMachine_MinorState& other) const { return !(*this == other); }
-
-  bool ParseFromArray(const void*, size_t) override;
-  std::string SerializeAsString() const override;
-  std::vector<uint8_t> SerializeAsArray() const override;
-  void Serialize(::protozero::Message*) const;
-
-  bool has_commit_count() const { return _has_field_[1]; }
-  int32_t commit_count() const { return commit_count_; }
-  void set_commit_count(int32_t value) { commit_count_ = value; _has_field_.set(1); }
-
-  bool has_current_frame_number() const { return _has_field_[2]; }
-  int32_t current_frame_number() const { return current_frame_number_; }
-  void set_current_frame_number(int32_t value) { current_frame_number_ = value; _has_field_.set(2); }
-
-  bool has_last_frame_number_submit_performed() const { return _has_field_[3]; }
-  int32_t last_frame_number_submit_performed() const { return last_frame_number_submit_performed_; }
-  void set_last_frame_number_submit_performed(int32_t value) { last_frame_number_submit_performed_ = value; _has_field_.set(3); }
-
-  bool has_last_frame_number_draw_performed() const { return _has_field_[4]; }
-  int32_t last_frame_number_draw_performed() const { return last_frame_number_draw_performed_; }
-  void set_last_frame_number_draw_performed(int32_t value) { last_frame_number_draw_performed_ = value; _has_field_.set(4); }
-
-  bool has_last_frame_number_begin_main_frame_sent() const { return _has_field_[5]; }
-  int32_t last_frame_number_begin_main_frame_sent() const { return last_frame_number_begin_main_frame_sent_; }
-  void set_last_frame_number_begin_main_frame_sent(int32_t value) { last_frame_number_begin_main_frame_sent_ = value; _has_field_.set(5); }
-
-  bool has_did_draw() const { return _has_field_[6]; }
-  bool did_draw() const { return did_draw_; }
-  void set_did_draw(bool value) { did_draw_ = value; _has_field_.set(6); }
-
-  bool has_did_send_begin_main_frame_for_current_frame() const { return _has_field_[7]; }
-  bool did_send_begin_main_frame_for_current_frame() const { return did_send_begin_main_frame_for_current_frame_; }
-  void set_did_send_begin_main_frame_for_current_frame(bool value) { did_send_begin_main_frame_for_current_frame_ = value; _has_field_.set(7); }
-
-  bool has_did_notify_begin_main_frame_not_expected_until() const { return _has_field_[8]; }
-  bool did_notify_begin_main_frame_not_expected_until() const { return did_notify_begin_main_frame_not_expected_until_; }
-  void set_did_notify_begin_main_frame_not_expected_until(bool value) { did_notify_begin_main_frame_not_expected_until_ = value; _has_field_.set(8); }
-
-  bool has_did_notify_begin_main_frame_not_expected_soon() const { return _has_field_[9]; }
-  bool did_notify_begin_main_frame_not_expected_soon() const { return did_notify_begin_main_frame_not_expected_soon_; }
-  void set_did_notify_begin_main_frame_not_expected_soon(bool value) { did_notify_begin_main_frame_not_expected_soon_ = value; _has_field_.set(9); }
-
-  bool has_wants_begin_main_frame_not_expected() const { return _has_field_[10]; }
-  bool wants_begin_main_frame_not_expected() const { return wants_begin_main_frame_not_expected_; }
-  void set_wants_begin_main_frame_not_expected(bool value) { wants_begin_main_frame_not_expected_ = value; _has_field_.set(10); }
-
-  bool has_did_commit_during_frame() const { return _has_field_[11]; }
-  bool did_commit_during_frame() const { return did_commit_during_frame_; }
-  void set_did_commit_during_frame(bool value) { did_commit_during_frame_ = value; _has_field_.set(11); }
-
-  bool has_did_invalidate_layer_tree_frame_sink() const { return _has_field_[12]; }
-  bool did_invalidate_layer_tree_frame_sink() const { return did_invalidate_layer_tree_frame_sink_; }
-  void set_did_invalidate_layer_tree_frame_sink(bool value) { did_invalidate_layer_tree_frame_sink_ = value; _has_field_.set(12); }
-
-  bool has_did_perform_impl_side_invalidaion() const { return _has_field_[13]; }
-  bool did_perform_impl_side_invalidaion() const { return did_perform_impl_side_invalidaion_; }
-  void set_did_perform_impl_side_invalidaion(bool value) { did_perform_impl_side_invalidaion_ = value; _has_field_.set(13); }
-
-  bool has_did_prepare_tiles() const { return _has_field_[14]; }
-  bool did_prepare_tiles() const { return did_prepare_tiles_; }
-  void set_did_prepare_tiles(bool value) { did_prepare_tiles_ = value; _has_field_.set(14); }
-
-  bool has_consecutive_checkerboard_animations() const { return _has_field_[15]; }
-  int32_t consecutive_checkerboard_animations() const { return consecutive_checkerboard_animations_; }
-  void set_consecutive_checkerboard_animations(int32_t value) { consecutive_checkerboard_animations_ = value; _has_field_.set(15); }
-
-  bool has_pending_submit_frames() const { return _has_field_[16]; }
-  int32_t pending_submit_frames() const { return pending_submit_frames_; }
-  void set_pending_submit_frames(int32_t value) { pending_submit_frames_ = value; _has_field_.set(16); }
-
-  bool has_submit_frames_with_current_layer_tree_frame_sink() const { return _has_field_[17]; }
-  int32_t submit_frames_with_current_layer_tree_frame_sink() const { return submit_frames_with_current_layer_tree_frame_sink_; }
-  void set_submit_frames_with_current_layer_tree_frame_sink(int32_t value) { submit_frames_with_current_layer_tree_frame_sink_ = value; _has_field_.set(17); }
-
-  bool has_needs_redraw() const { return _has_field_[18]; }
-  bool needs_redraw() const { return needs_redraw_; }
-  void set_needs_redraw(bool value) { needs_redraw_ = value; _has_field_.set(18); }
-
-  bool has_needs_prepare_tiles() const { return _has_field_[19]; }
-  bool needs_prepare_tiles() const { return needs_prepare_tiles_; }
-  void set_needs_prepare_tiles(bool value) { needs_prepare_tiles_ = value; _has_field_.set(19); }
-
-  bool has_needs_begin_main_frame() const { return _has_field_[20]; }
-  bool needs_begin_main_frame() const { return needs_begin_main_frame_; }
-  void set_needs_begin_main_frame(bool value) { needs_begin_main_frame_ = value; _has_field_.set(20); }
-
-  bool has_needs_one_begin_impl_frame() const { return _has_field_[21]; }
-  bool needs_one_begin_impl_frame() const { return needs_one_begin_impl_frame_; }
-  void set_needs_one_begin_impl_frame(bool value) { needs_one_begin_impl_frame_ = value; _has_field_.set(21); }
-
-  bool has_visible() const { return _has_field_[22]; }
-  bool visible() const { return visible_; }
-  void set_visible(bool value) { visible_ = value; _has_field_.set(22); }
-
-  bool has_begin_frame_source_paused() const { return _has_field_[23]; }
-  bool begin_frame_source_paused() const { return begin_frame_source_paused_; }
-  void set_begin_frame_source_paused(bool value) { begin_frame_source_paused_ = value; _has_field_.set(23); }
-
-  bool has_can_draw() const { return _has_field_[24]; }
-  bool can_draw() const { return can_draw_; }
-  void set_can_draw(bool value) { can_draw_ = value; _has_field_.set(24); }
-
-  bool has_resourceless_draw() const { return _has_field_[25]; }
-  bool resourceless_draw() const { return resourceless_draw_; }
-  void set_resourceless_draw(bool value) { resourceless_draw_ = value; _has_field_.set(25); }
-
-  bool has_has_pending_tree() const { return _has_field_[26]; }
-  bool has_pending_tree() const { return has_pending_tree_; }
-  void set_has_pending_tree(bool value) { has_pending_tree_ = value; _has_field_.set(26); }
-
-  bool has_pending_tree_is_ready_for_activation() const { return _has_field_[27]; }
-  bool pending_tree_is_ready_for_activation() const { return pending_tree_is_ready_for_activation_; }
-  void set_pending_tree_is_ready_for_activation(bool value) { pending_tree_is_ready_for_activation_ = value; _has_field_.set(27); }
-
-  bool has_active_tree_needs_first_draw() const { return _has_field_[28]; }
-  bool active_tree_needs_first_draw() const { return active_tree_needs_first_draw_; }
-  void set_active_tree_needs_first_draw(bool value) { active_tree_needs_first_draw_ = value; _has_field_.set(28); }
-
-  bool has_active_tree_is_ready_to_draw() const { return _has_field_[29]; }
-  bool active_tree_is_ready_to_draw() const { return active_tree_is_ready_to_draw_; }
-  void set_active_tree_is_ready_to_draw(bool value) { active_tree_is_ready_to_draw_ = value; _has_field_.set(29); }
-
-  bool has_did_create_and_initialize_first_layer_tree_frame_sink() const { return _has_field_[30]; }
-  bool did_create_and_initialize_first_layer_tree_frame_sink() const { return did_create_and_initialize_first_layer_tree_frame_sink_; }
-  void set_did_create_and_initialize_first_layer_tree_frame_sink(bool value) { did_create_and_initialize_first_layer_tree_frame_sink_ = value; _has_field_.set(30); }
-
-  bool has_tree_priority() const { return _has_field_[31]; }
-  ChromeCompositorStateMachine_MinorState_TreePriority tree_priority() const { return tree_priority_; }
-  void set_tree_priority(ChromeCompositorStateMachine_MinorState_TreePriority value) { tree_priority_ = value; _has_field_.set(31); }
-
-  bool has_scroll_handler_state() const { return _has_field_[32]; }
-  ChromeCompositorStateMachine_MinorState_ScrollHandlerState scroll_handler_state() const { return scroll_handler_state_; }
-  void set_scroll_handler_state(ChromeCompositorStateMachine_MinorState_ScrollHandlerState value) { scroll_handler_state_ = value; _has_field_.set(32); }
-
-  bool has_critical_begin_main_frame_to_activate_is_fast() const { return _has_field_[33]; }
-  bool critical_begin_main_frame_to_activate_is_fast() const { return critical_begin_main_frame_to_activate_is_fast_; }
-  void set_critical_begin_main_frame_to_activate_is_fast(bool value) { critical_begin_main_frame_to_activate_is_fast_ = value; _has_field_.set(33); }
-
-  bool has_main_thread_missed_last_deadline() const { return _has_field_[34]; }
-  bool main_thread_missed_last_deadline() const { return main_thread_missed_last_deadline_; }
-  void set_main_thread_missed_last_deadline(bool value) { main_thread_missed_last_deadline_ = value; _has_field_.set(34); }
-
-  bool has_skip_next_begin_main_frame_to_reduce_latency() const { return _has_field_[35]; }
-  bool skip_next_begin_main_frame_to_reduce_latency() const { return skip_next_begin_main_frame_to_reduce_latency_; }
-  void set_skip_next_begin_main_frame_to_reduce_latency(bool value) { skip_next_begin_main_frame_to_reduce_latency_ = value; _has_field_.set(35); }
-
-  bool has_video_needs_begin_frames() const { return _has_field_[36]; }
-  bool video_needs_begin_frames() const { return video_needs_begin_frames_; }
-  void set_video_needs_begin_frames(bool value) { video_needs_begin_frames_ = value; _has_field_.set(36); }
-
-  bool has_defer_begin_main_frame() const { return _has_field_[37]; }
-  bool defer_begin_main_frame() const { return defer_begin_main_frame_; }
-  void set_defer_begin_main_frame(bool value) { defer_begin_main_frame_ = value; _has_field_.set(37); }
-
-  bool has_last_commit_had_no_updates() const { return _has_field_[38]; }
-  bool last_commit_had_no_updates() const { return last_commit_had_no_updates_; }
-  void set_last_commit_had_no_updates(bool value) { last_commit_had_no_updates_ = value; _has_field_.set(38); }
-
-  bool has_did_draw_in_last_frame() const { return _has_field_[39]; }
-  bool did_draw_in_last_frame() const { return did_draw_in_last_frame_; }
-  void set_did_draw_in_last_frame(bool value) { did_draw_in_last_frame_ = value; _has_field_.set(39); }
-
-  bool has_did_submit_in_last_frame() const { return _has_field_[40]; }
-  bool did_submit_in_last_frame() const { return did_submit_in_last_frame_; }
-  void set_did_submit_in_last_frame(bool value) { did_submit_in_last_frame_ = value; _has_field_.set(40); }
-
-  bool has_needs_impl_side_invalidation() const { return _has_field_[41]; }
-  bool needs_impl_side_invalidation() const { return needs_impl_side_invalidation_; }
-  void set_needs_impl_side_invalidation(bool value) { needs_impl_side_invalidation_ = value; _has_field_.set(41); }
-
-  bool has_current_pending_tree_is_impl_side() const { return _has_field_[42]; }
-  bool current_pending_tree_is_impl_side() const { return current_pending_tree_is_impl_side_; }
-  void set_current_pending_tree_is_impl_side(bool value) { current_pending_tree_is_impl_side_ = value; _has_field_.set(42); }
-
-  bool has_previous_pending_tree_was_impl_side() const { return _has_field_[43]; }
-  bool previous_pending_tree_was_impl_side() const { return previous_pending_tree_was_impl_side_; }
-  void set_previous_pending_tree_was_impl_side(bool value) { previous_pending_tree_was_impl_side_ = value; _has_field_.set(43); }
-
-  bool has_processing_animation_worklets_for_active_tree() const { return _has_field_[44]; }
-  bool processing_animation_worklets_for_active_tree() const { return processing_animation_worklets_for_active_tree_; }
-  void set_processing_animation_worklets_for_active_tree(bool value) { processing_animation_worklets_for_active_tree_ = value; _has_field_.set(44); }
-
-  bool has_processing_animation_worklets_for_pending_tree() const { return _has_field_[45]; }
-  bool processing_animation_worklets_for_pending_tree() const { return processing_animation_worklets_for_pending_tree_; }
-  void set_processing_animation_worklets_for_pending_tree(bool value) { processing_animation_worklets_for_pending_tree_ = value; _has_field_.set(45); }
-
-  bool has_processing_paint_worklets_for_pending_tree() const { return _has_field_[46]; }
-  bool processing_paint_worklets_for_pending_tree() const { return processing_paint_worklets_for_pending_tree_; }
-  void set_processing_paint_worklets_for_pending_tree(bool value) { processing_paint_worklets_for_pending_tree_ = value; _has_field_.set(46); }
-
- private:
-  int32_t commit_count_{};
-  int32_t current_frame_number_{};
-  int32_t last_frame_number_submit_performed_{};
-  int32_t last_frame_number_draw_performed_{};
-  int32_t last_frame_number_begin_main_frame_sent_{};
-  bool did_draw_{};
-  bool did_send_begin_main_frame_for_current_frame_{};
-  bool did_notify_begin_main_frame_not_expected_until_{};
-  bool did_notify_begin_main_frame_not_expected_soon_{};
-  bool wants_begin_main_frame_not_expected_{};
-  bool did_commit_during_frame_{};
-  bool did_invalidate_layer_tree_frame_sink_{};
-  bool did_perform_impl_side_invalidaion_{};
-  bool did_prepare_tiles_{};
-  int32_t consecutive_checkerboard_animations_{};
-  int32_t pending_submit_frames_{};
-  int32_t submit_frames_with_current_layer_tree_frame_sink_{};
-  bool needs_redraw_{};
-  bool needs_prepare_tiles_{};
-  bool needs_begin_main_frame_{};
-  bool needs_one_begin_impl_frame_{};
-  bool visible_{};
-  bool begin_frame_source_paused_{};
-  bool can_draw_{};
-  bool resourceless_draw_{};
-  bool has_pending_tree_{};
-  bool pending_tree_is_ready_for_activation_{};
-  bool active_tree_needs_first_draw_{};
-  bool active_tree_is_ready_to_draw_{};
-  bool did_create_and_initialize_first_layer_tree_frame_sink_{};
-  ChromeCompositorStateMachine_MinorState_TreePriority tree_priority_{};
-  ChromeCompositorStateMachine_MinorState_ScrollHandlerState scroll_handler_state_{};
-  bool critical_begin_main_frame_to_activate_is_fast_{};
-  bool main_thread_missed_last_deadline_{};
-  bool skip_next_begin_main_frame_to_reduce_latency_{};
-  bool video_needs_begin_frames_{};
-  bool defer_begin_main_frame_{};
-  bool last_commit_had_no_updates_{};
-  bool did_draw_in_last_frame_{};
-  bool did_submit_in_last_frame_{};
-  bool needs_impl_side_invalidation_{};
-  bool current_pending_tree_is_impl_side_{};
-  bool previous_pending_tree_was_impl_side_{};
-  bool processing_animation_worklets_for_active_tree_{};
-  bool processing_animation_worklets_for_pending_tree_{};
-  bool processing_paint_worklets_for_pending_tree_{};
-
-  // Allows to preserve unknown protobuf fields for compatibility
-  // with future versions of .proto files.
-  std::string unknown_fields_;
-
-  std::bitset<47> _has_field_{};
-};
-
-
-class PERFETTO_EXPORT ChromeCompositorStateMachine_MajorState : public ::protozero::CppMessageObj {
- public:
-  using BeginImplFrameState = ChromeCompositorStateMachine_MajorState_BeginImplFrameState;
-  static constexpr auto BEGIN_IMPL_FRAME_UNSPECIFIED = ChromeCompositorStateMachine_MajorState_BeginImplFrameState_BEGIN_IMPL_FRAME_UNSPECIFIED;
-  static constexpr auto BEGIN_IMPL_FRAME_IDLE = ChromeCompositorStateMachine_MajorState_BeginImplFrameState_BEGIN_IMPL_FRAME_IDLE;
-  static constexpr auto BEGIN_IMPL_FRAME_INSIDE_BEGIN_FRAME = ChromeCompositorStateMachine_MajorState_BeginImplFrameState_BEGIN_IMPL_FRAME_INSIDE_BEGIN_FRAME;
-  static constexpr auto BEGIN_IMPL_FRAME_INSIDE_DEADLINE = ChromeCompositorStateMachine_MajorState_BeginImplFrameState_BEGIN_IMPL_FRAME_INSIDE_DEADLINE;
-  static constexpr auto BeginImplFrameState_MIN = ChromeCompositorStateMachine_MajorState_BeginImplFrameState_BEGIN_IMPL_FRAME_UNSPECIFIED;
-  static constexpr auto BeginImplFrameState_MAX = ChromeCompositorStateMachine_MajorState_BeginImplFrameState_BEGIN_IMPL_FRAME_INSIDE_DEADLINE;
-  using BeginMainFrameState = ChromeCompositorStateMachine_MajorState_BeginMainFrameState;
-  static constexpr auto BEGIN_MAIN_FRAME_UNSPECIFIED = ChromeCompositorStateMachine_MajorState_BeginMainFrameState_BEGIN_MAIN_FRAME_UNSPECIFIED;
-  static constexpr auto BEGIN_MAIN_FRAME_IDLE = ChromeCompositorStateMachine_MajorState_BeginMainFrameState_BEGIN_MAIN_FRAME_IDLE;
-  static constexpr auto BEGIN_MAIN_FRAME_SENT = ChromeCompositorStateMachine_MajorState_BeginMainFrameState_BEGIN_MAIN_FRAME_SENT;
-  static constexpr auto BEGIN_MAIN_FRAME_READY_TO_COMMIT = ChromeCompositorStateMachine_MajorState_BeginMainFrameState_BEGIN_MAIN_FRAME_READY_TO_COMMIT;
-  static constexpr auto BeginMainFrameState_MIN = ChromeCompositorStateMachine_MajorState_BeginMainFrameState_BEGIN_MAIN_FRAME_UNSPECIFIED;
-  static constexpr auto BeginMainFrameState_MAX = ChromeCompositorStateMachine_MajorState_BeginMainFrameState_BEGIN_MAIN_FRAME_READY_TO_COMMIT;
-  using LayerTreeFrameSinkState = ChromeCompositorStateMachine_MajorState_LayerTreeFrameSinkState;
-  static constexpr auto LAYER_TREE_FRAME_UNSPECIFIED = ChromeCompositorStateMachine_MajorState_LayerTreeFrameSinkState_LAYER_TREE_FRAME_UNSPECIFIED;
-  static constexpr auto LAYER_TREE_FRAME_NONE = ChromeCompositorStateMachine_MajorState_LayerTreeFrameSinkState_LAYER_TREE_FRAME_NONE;
-  static constexpr auto LAYER_TREE_FRAME_ACTIVE = ChromeCompositorStateMachine_MajorState_LayerTreeFrameSinkState_LAYER_TREE_FRAME_ACTIVE;
-  static constexpr auto LAYER_TREE_FRAME_CREATING = ChromeCompositorStateMachine_MajorState_LayerTreeFrameSinkState_LAYER_TREE_FRAME_CREATING;
-  static constexpr auto LAYER_TREE_FRAME_WAITING_FOR_FIRST_COMMIT = ChromeCompositorStateMachine_MajorState_LayerTreeFrameSinkState_LAYER_TREE_FRAME_WAITING_FOR_FIRST_COMMIT;
-  static constexpr auto LAYER_TREE_FRAME_WAITING_FOR_FIRST_ACTIVATION = ChromeCompositorStateMachine_MajorState_LayerTreeFrameSinkState_LAYER_TREE_FRAME_WAITING_FOR_FIRST_ACTIVATION;
-  static constexpr auto LayerTreeFrameSinkState_MIN = ChromeCompositorStateMachine_MajorState_LayerTreeFrameSinkState_LAYER_TREE_FRAME_UNSPECIFIED;
-  static constexpr auto LayerTreeFrameSinkState_MAX = ChromeCompositorStateMachine_MajorState_LayerTreeFrameSinkState_LAYER_TREE_FRAME_WAITING_FOR_FIRST_ACTIVATION;
-  using ForcedRedrawOnTimeoutState = ChromeCompositorStateMachine_MajorState_ForcedRedrawOnTimeoutState;
-  static constexpr auto FORCED_REDRAW_UNSPECIFIED = ChromeCompositorStateMachine_MajorState_ForcedRedrawOnTimeoutState_FORCED_REDRAW_UNSPECIFIED;
-  static constexpr auto FORCED_REDRAW_IDLE = ChromeCompositorStateMachine_MajorState_ForcedRedrawOnTimeoutState_FORCED_REDRAW_IDLE;
-  static constexpr auto FORCED_REDRAW_WAITING_FOR_COMMIT = ChromeCompositorStateMachine_MajorState_ForcedRedrawOnTimeoutState_FORCED_REDRAW_WAITING_FOR_COMMIT;
-  static constexpr auto FORCED_REDRAW_WAITING_FOR_ACTIVATION = ChromeCompositorStateMachine_MajorState_ForcedRedrawOnTimeoutState_FORCED_REDRAW_WAITING_FOR_ACTIVATION;
-  static constexpr auto FORCED_REDRAW_WAITING_FOR_DRAW = ChromeCompositorStateMachine_MajorState_ForcedRedrawOnTimeoutState_FORCED_REDRAW_WAITING_FOR_DRAW;
-  static constexpr auto ForcedRedrawOnTimeoutState_MIN = ChromeCompositorStateMachine_MajorState_ForcedRedrawOnTimeoutState_FORCED_REDRAW_UNSPECIFIED;
-  static constexpr auto ForcedRedrawOnTimeoutState_MAX = ChromeCompositorStateMachine_MajorState_ForcedRedrawOnTimeoutState_FORCED_REDRAW_WAITING_FOR_DRAW;
-  enum FieldNumbers {
-    kNextActionFieldNumber = 1,
-    kBeginImplFrameStateFieldNumber = 2,
-    kBeginMainFrameStateFieldNumber = 3,
-    kLayerTreeFrameSinkStateFieldNumber = 4,
-    kForcedRedrawStateFieldNumber = 5,
-  };
-
-  ChromeCompositorStateMachine_MajorState();
-  ~ChromeCompositorStateMachine_MajorState() override;
-  ChromeCompositorStateMachine_MajorState(ChromeCompositorStateMachine_MajorState&&) noexcept;
-  ChromeCompositorStateMachine_MajorState& operator=(ChromeCompositorStateMachine_MajorState&&);
-  ChromeCompositorStateMachine_MajorState(const ChromeCompositorStateMachine_MajorState&);
-  ChromeCompositorStateMachine_MajorState& operator=(const ChromeCompositorStateMachine_MajorState&);
-  bool operator==(const ChromeCompositorStateMachine_MajorState&) const;
-  bool operator!=(const ChromeCompositorStateMachine_MajorState& other) const { return !(*this == other); }
-
-  bool ParseFromArray(const void*, size_t) override;
-  std::string SerializeAsString() const override;
-  std::vector<uint8_t> SerializeAsArray() const override;
-  void Serialize(::protozero::Message*) const;
-
-  bool has_next_action() const { return _has_field_[1]; }
-  ChromeCompositorSchedulerAction next_action() const { return next_action_; }
-  void set_next_action(ChromeCompositorSchedulerAction value) { next_action_ = value; _has_field_.set(1); }
-
-  bool has_begin_impl_frame_state() const { return _has_field_[2]; }
-  ChromeCompositorStateMachine_MajorState_BeginImplFrameState begin_impl_frame_state() const { return begin_impl_frame_state_; }
-  void set_begin_impl_frame_state(ChromeCompositorStateMachine_MajorState_BeginImplFrameState value) { begin_impl_frame_state_ = value; _has_field_.set(2); }
-
-  bool has_begin_main_frame_state() const { return _has_field_[3]; }
-  ChromeCompositorStateMachine_MajorState_BeginMainFrameState begin_main_frame_state() const { return begin_main_frame_state_; }
-  void set_begin_main_frame_state(ChromeCompositorStateMachine_MajorState_BeginMainFrameState value) { begin_main_frame_state_ = value; _has_field_.set(3); }
-
-  bool has_layer_tree_frame_sink_state() const { return _has_field_[4]; }
-  ChromeCompositorStateMachine_MajorState_LayerTreeFrameSinkState layer_tree_frame_sink_state() const { return layer_tree_frame_sink_state_; }
-  void set_layer_tree_frame_sink_state(ChromeCompositorStateMachine_MajorState_LayerTreeFrameSinkState value) { layer_tree_frame_sink_state_ = value; _has_field_.set(4); }
-
-  bool has_forced_redraw_state() const { return _has_field_[5]; }
-  ChromeCompositorStateMachine_MajorState_ForcedRedrawOnTimeoutState forced_redraw_state() const { return forced_redraw_state_; }
-  void set_forced_redraw_state(ChromeCompositorStateMachine_MajorState_ForcedRedrawOnTimeoutState value) { forced_redraw_state_ = value; _has_field_.set(5); }
-
- private:
-  ChromeCompositorSchedulerAction next_action_{};
-  ChromeCompositorStateMachine_MajorState_BeginImplFrameState begin_impl_frame_state_{};
-  ChromeCompositorStateMachine_MajorState_BeginMainFrameState begin_main_frame_state_{};
-  ChromeCompositorStateMachine_MajorState_LayerTreeFrameSinkState layer_tree_frame_sink_state_{};
-  ChromeCompositorStateMachine_MajorState_ForcedRedrawOnTimeoutState forced_redraw_state_{};
-
-  // Allows to preserve unknown protobuf fields for compatibility
-  // with future versions of .proto files.
-  std::string unknown_fields_;
-
-  std::bitset<6> _has_field_{};
-};
-
-
-class PERFETTO_EXPORT ChromeCompositorSchedulerState : public ::protozero::CppMessageObj {
- public:
-  using BeginImplFrameDeadlineMode = ChromeCompositorSchedulerState_BeginImplFrameDeadlineMode;
-  static constexpr auto DEADLINE_MODE_UNSPECIFIED = ChromeCompositorSchedulerState_BeginImplFrameDeadlineMode_DEADLINE_MODE_UNSPECIFIED;
-  static constexpr auto DEADLINE_MODE_NONE = ChromeCompositorSchedulerState_BeginImplFrameDeadlineMode_DEADLINE_MODE_NONE;
-  static constexpr auto DEADLINE_MODE_IMMEDIATE = ChromeCompositorSchedulerState_BeginImplFrameDeadlineMode_DEADLINE_MODE_IMMEDIATE;
-  static constexpr auto DEADLINE_MODE_REGULAR = ChromeCompositorSchedulerState_BeginImplFrameDeadlineMode_DEADLINE_MODE_REGULAR;
-  static constexpr auto DEADLINE_MODE_LATE = ChromeCompositorSchedulerState_BeginImplFrameDeadlineMode_DEADLINE_MODE_LATE;
-  static constexpr auto DEADLINE_MODE_BLOCKED = ChromeCompositorSchedulerState_BeginImplFrameDeadlineMode_DEADLINE_MODE_BLOCKED;
-  static constexpr auto BeginImplFrameDeadlineMode_MIN = ChromeCompositorSchedulerState_BeginImplFrameDeadlineMode_DEADLINE_MODE_UNSPECIFIED;
-  static constexpr auto BeginImplFrameDeadlineMode_MAX = ChromeCompositorSchedulerState_BeginImplFrameDeadlineMode_DEADLINE_MODE_BLOCKED;
-  enum FieldNumbers {
-    kStateMachineFieldNumber = 1,
-    kObservingBeginFrameSourceFieldNumber = 2,
-    kBeginImplFrameDeadlineTaskFieldNumber = 3,
-    kPendingBeginFrameTaskFieldNumber = 4,
-    kSkippedLastFrameMissedExceededDeadlineFieldNumber = 5,
-    kSkippedLastFrameToReduceLatencyFieldNumber = 6,
-    kInsideActionFieldNumber = 7,
-    kDeadlineModeFieldNumber = 8,
-    kDeadlineUsFieldNumber = 9,
-    kDeadlineScheduledAtUsFieldNumber = 10,
-    kNowUsFieldNumber = 11,
-    kNowToDeadlineDeltaUsFieldNumber = 12,
-    kNowToDeadlineScheduledAtDeltaUsFieldNumber = 13,
-    kBeginImplFrameArgsFieldNumber = 14,
-    kBeginFrameObserverStateFieldNumber = 15,
-    kBeginFrameSourceStateFieldNumber = 16,
-    kCompositorTimingHistoryFieldNumber = 17,
-  };
-
-  ChromeCompositorSchedulerState();
-  ~ChromeCompositorSchedulerState() override;
-  ChromeCompositorSchedulerState(ChromeCompositorSchedulerState&&) noexcept;
-  ChromeCompositorSchedulerState& operator=(ChromeCompositorSchedulerState&&);
-  ChromeCompositorSchedulerState(const ChromeCompositorSchedulerState&);
-  ChromeCompositorSchedulerState& operator=(const ChromeCompositorSchedulerState&);
-  bool operator==(const ChromeCompositorSchedulerState&) const;
-  bool operator!=(const ChromeCompositorSchedulerState& other) const { return !(*this == other); }
-
-  bool ParseFromArray(const void*, size_t) override;
-  std::string SerializeAsString() const override;
-  std::vector<uint8_t> SerializeAsArray() const override;
-  void Serialize(::protozero::Message*) const;
-
-  bool has_state_machine() const { return _has_field_[1]; }
-  const ChromeCompositorStateMachine& state_machine() const { return *state_machine_; }
-  ChromeCompositorStateMachine* mutable_state_machine() { _has_field_.set(1); return state_machine_.get(); }
-
-  bool has_observing_begin_frame_source() const { return _has_field_[2]; }
-  bool observing_begin_frame_source() const { return observing_begin_frame_source_; }
-  void set_observing_begin_frame_source(bool value) { observing_begin_frame_source_ = value; _has_field_.set(2); }
-
-  bool has_begin_impl_frame_deadline_task() const { return _has_field_[3]; }
-  bool begin_impl_frame_deadline_task() const { return begin_impl_frame_deadline_task_; }
-  void set_begin_impl_frame_deadline_task(bool value) { begin_impl_frame_deadline_task_ = value; _has_field_.set(3); }
-
-  bool has_pending_begin_frame_task() const { return _has_field_[4]; }
-  bool pending_begin_frame_task() const { return pending_begin_frame_task_; }
-  void set_pending_begin_frame_task(bool value) { pending_begin_frame_task_ = value; _has_field_.set(4); }
-
-  bool has_skipped_last_frame_missed_exceeded_deadline() const { return _has_field_[5]; }
-  bool skipped_last_frame_missed_exceeded_deadline() const { return skipped_last_frame_missed_exceeded_deadline_; }
-  void set_skipped_last_frame_missed_exceeded_deadline(bool value) { skipped_last_frame_missed_exceeded_deadline_ = value; _has_field_.set(5); }
-
-  bool has_skipped_last_frame_to_reduce_latency() const { return _has_field_[6]; }
-  bool skipped_last_frame_to_reduce_latency() const { return skipped_last_frame_to_reduce_latency_; }
-  void set_skipped_last_frame_to_reduce_latency(bool value) { skipped_last_frame_to_reduce_latency_ = value; _has_field_.set(6); }
-
-  bool has_inside_action() const { return _has_field_[7]; }
-  ChromeCompositorSchedulerAction inside_action() const { return inside_action_; }
-  void set_inside_action(ChromeCompositorSchedulerAction value) { inside_action_ = value; _has_field_.set(7); }
-
-  bool has_deadline_mode() const { return _has_field_[8]; }
-  ChromeCompositorSchedulerState_BeginImplFrameDeadlineMode deadline_mode() const { return deadline_mode_; }
-  void set_deadline_mode(ChromeCompositorSchedulerState_BeginImplFrameDeadlineMode value) { deadline_mode_ = value; _has_field_.set(8); }
-
-  bool has_deadline_us() const { return _has_field_[9]; }
-  int64_t deadline_us() const { return deadline_us_; }
-  void set_deadline_us(int64_t value) { deadline_us_ = value; _has_field_.set(9); }
-
-  bool has_deadline_scheduled_at_us() const { return _has_field_[10]; }
-  int64_t deadline_scheduled_at_us() const { return deadline_scheduled_at_us_; }
-  void set_deadline_scheduled_at_us(int64_t value) { deadline_scheduled_at_us_ = value; _has_field_.set(10); }
-
-  bool has_now_us() const { return _has_field_[11]; }
-  int64_t now_us() const { return now_us_; }
-  void set_now_us(int64_t value) { now_us_ = value; _has_field_.set(11); }
-
-  bool has_now_to_deadline_delta_us() const { return _has_field_[12]; }
-  int64_t now_to_deadline_delta_us() const { return now_to_deadline_delta_us_; }
-  void set_now_to_deadline_delta_us(int64_t value) { now_to_deadline_delta_us_ = value; _has_field_.set(12); }
-
-  bool has_now_to_deadline_scheduled_at_delta_us() const { return _has_field_[13]; }
-  int64_t now_to_deadline_scheduled_at_delta_us() const { return now_to_deadline_scheduled_at_delta_us_; }
-  void set_now_to_deadline_scheduled_at_delta_us(int64_t value) { now_to_deadline_scheduled_at_delta_us_ = value; _has_field_.set(13); }
-
-  bool has_begin_impl_frame_args() const { return _has_field_[14]; }
-  const BeginImplFrameArgs& begin_impl_frame_args() const { return *begin_impl_frame_args_; }
-  BeginImplFrameArgs* mutable_begin_impl_frame_args() { _has_field_.set(14); return begin_impl_frame_args_.get(); }
-
-  bool has_begin_frame_observer_state() const { return _has_field_[15]; }
-  const BeginFrameObserverState& begin_frame_observer_state() const { return *begin_frame_observer_state_; }
-  BeginFrameObserverState* mutable_begin_frame_observer_state() { _has_field_.set(15); return begin_frame_observer_state_.get(); }
-
-  bool has_begin_frame_source_state() const { return _has_field_[16]; }
-  const BeginFrameSourceState& begin_frame_source_state() const { return *begin_frame_source_state_; }
-  BeginFrameSourceState* mutable_begin_frame_source_state() { _has_field_.set(16); return begin_frame_source_state_.get(); }
-
-  bool has_compositor_timing_history() const { return _has_field_[17]; }
-  const CompositorTimingHistory& compositor_timing_history() const { return *compositor_timing_history_; }
-  CompositorTimingHistory* mutable_compositor_timing_history() { _has_field_.set(17); return compositor_timing_history_.get(); }
-
- private:
-  ::protozero::CopyablePtr<ChromeCompositorStateMachine> state_machine_;
-  bool observing_begin_frame_source_{};
-  bool begin_impl_frame_deadline_task_{};
-  bool pending_begin_frame_task_{};
-  bool skipped_last_frame_missed_exceeded_deadline_{};
-  bool skipped_last_frame_to_reduce_latency_{};
-  ChromeCompositorSchedulerAction inside_action_{};
-  ChromeCompositorSchedulerState_BeginImplFrameDeadlineMode deadline_mode_{};
-  int64_t deadline_us_{};
-  int64_t deadline_scheduled_at_us_{};
-  int64_t now_us_{};
-  int64_t now_to_deadline_delta_us_{};
-  int64_t now_to_deadline_scheduled_at_delta_us_{};
-  ::protozero::CopyablePtr<BeginImplFrameArgs> begin_impl_frame_args_;
-  ::protozero::CopyablePtr<BeginFrameObserverState> begin_frame_observer_state_;
-  ::protozero::CopyablePtr<BeginFrameSourceState> begin_frame_source_state_;
-  ::protozero::CopyablePtr<CompositorTimingHistory> compositor_timing_history_;
-
-  // Allows to preserve unknown protobuf fields for compatibility
-  // with future versions of .proto files.
-  std::string unknown_fields_;
-
-  std::bitset<18> _has_field_{};
-};
-
-}  // namespace perfetto
-}  // namespace protos
-}  // namespace gen
-
-#endif  // PERFETTO_PROTOS_PROTOS_PERFETTO_TRACE_TRACK_EVENT_CHROME_COMPOSITOR_SCHEDULER_STATE_PROTO_CPP_H_
-// gen_amalgamated begin header: gen/protos/perfetto/trace/track_event/chrome_content_settings_event_info.gen.h
-// DO NOT EDIT. Autogenerated by Perfetto cppgen_plugin
-#ifndef PERFETTO_PROTOS_PROTOS_PERFETTO_TRACE_TRACK_EVENT_CHROME_CONTENT_SETTINGS_EVENT_INFO_PROTO_CPP_H_
-#define PERFETTO_PROTOS_PROTOS_PERFETTO_TRACE_TRACK_EVENT_CHROME_CONTENT_SETTINGS_EVENT_INFO_PROTO_CPP_H_
-
-#include <stdint.h>
-#include <bitset>
-#include <vector>
-#include <string>
-#include <type_traits>
-
-// gen_amalgamated expanded: #include "perfetto/protozero/cpp_message_obj.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/copyable_ptr.h"
-// gen_amalgamated expanded: #include "perfetto/base/export.h"
-
-namespace perfetto {
-namespace protos {
-namespace gen {
-class ChromeContentSettingsEventInfo;
-}  // namespace perfetto
-}  // namespace protos
-}  // namespace gen
-
-namespace protozero {
-class Message;
-}  // namespace protozero
-
-namespace perfetto {
-namespace protos {
-namespace gen {
-
-class PERFETTO_EXPORT ChromeContentSettingsEventInfo : public ::protozero::CppMessageObj {
- public:
-  enum FieldNumbers {
-    kNumberOfExceptionsFieldNumber = 1,
-  };
-
-  ChromeContentSettingsEventInfo();
-  ~ChromeContentSettingsEventInfo() override;
-  ChromeContentSettingsEventInfo(ChromeContentSettingsEventInfo&&) noexcept;
-  ChromeContentSettingsEventInfo& operator=(ChromeContentSettingsEventInfo&&);
-  ChromeContentSettingsEventInfo(const ChromeContentSettingsEventInfo&);
-  ChromeContentSettingsEventInfo& operator=(const ChromeContentSettingsEventInfo&);
-  bool operator==(const ChromeContentSettingsEventInfo&) const;
-  bool operator!=(const ChromeContentSettingsEventInfo& other) const { return !(*this == other); }
-
-  bool ParseFromArray(const void*, size_t) override;
-  std::string SerializeAsString() const override;
-  std::vector<uint8_t> SerializeAsArray() const override;
-  void Serialize(::protozero::Message*) const;
-
-  bool has_number_of_exceptions() const { return _has_field_[1]; }
-  uint32_t number_of_exceptions() const { return number_of_exceptions_; }
-  void set_number_of_exceptions(uint32_t value) { number_of_exceptions_ = value; _has_field_.set(1); }
-
- private:
-  uint32_t number_of_exceptions_{};
-
-  // Allows to preserve unknown protobuf fields for compatibility
-  // with future versions of .proto files.
-  std::string unknown_fields_;
-
-  std::bitset<2> _has_field_{};
-};
-
-}  // namespace perfetto
-}  // namespace protos
-}  // namespace gen
-
-#endif  // PERFETTO_PROTOS_PROTOS_PERFETTO_TRACE_TRACK_EVENT_CHROME_CONTENT_SETTINGS_EVENT_INFO_PROTO_CPP_H_
-// gen_amalgamated begin header: gen/protos/perfetto/trace/track_event/chrome_frame_reporter.gen.h
-// DO NOT EDIT. Autogenerated by Perfetto cppgen_plugin
-#ifndef PERFETTO_PROTOS_PROTOS_PERFETTO_TRACE_TRACK_EVENT_CHROME_FRAME_REPORTER_PROTO_CPP_H_
-#define PERFETTO_PROTOS_PROTOS_PERFETTO_TRACE_TRACK_EVENT_CHROME_FRAME_REPORTER_PROTO_CPP_H_
-
-#include <stdint.h>
-#include <bitset>
-#include <vector>
-#include <string>
-#include <type_traits>
-
-// gen_amalgamated expanded: #include "perfetto/protozero/cpp_message_obj.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/copyable_ptr.h"
-// gen_amalgamated expanded: #include "perfetto/base/export.h"
-
-namespace perfetto {
-namespace protos {
-namespace gen {
-class ChromeFrameReporter;
-enum ChromeFrameReporter_State : int;
-enum ChromeFrameReporter_FrameDropReason : int;
-enum ChromeFrameReporter_ScrollState : int;
-}  // namespace perfetto
-}  // namespace protos
-}  // namespace gen
-
-namespace protozero {
-class Message;
-}  // namespace protozero
-
-namespace perfetto {
-namespace protos {
-namespace gen {
-enum ChromeFrameReporter_State : int {
-  ChromeFrameReporter_State_STATE_NO_UPDATE_DESIRED = 0,
-  ChromeFrameReporter_State_STATE_PRESENTED_ALL = 1,
-  ChromeFrameReporter_State_STATE_PRESENTED_PARTIAL = 2,
-  ChromeFrameReporter_State_STATE_DROPPED = 3,
-};
-enum ChromeFrameReporter_FrameDropReason : int {
-  ChromeFrameReporter_FrameDropReason_REASON_UNSPECIFIED = 0,
-  ChromeFrameReporter_FrameDropReason_REASON_DISPLAY_COMPOSITOR = 1,
-  ChromeFrameReporter_FrameDropReason_REASON_MAIN_THREAD = 2,
-  ChromeFrameReporter_FrameDropReason_REASON_CLIENT_COMPOSITOR = 3,
-};
-enum ChromeFrameReporter_ScrollState : int {
-  ChromeFrameReporter_ScrollState_SCROLL_NONE = 0,
-  ChromeFrameReporter_ScrollState_SCROLL_MAIN_THREAD = 1,
-  ChromeFrameReporter_ScrollState_SCROLL_COMPOSITOR_THREAD = 2,
-  ChromeFrameReporter_ScrollState_SCROLL_UNKNOWN = 3,
-};
-
-class PERFETTO_EXPORT ChromeFrameReporter : public ::protozero::CppMessageObj {
- public:
-  using State = ChromeFrameReporter_State;
-  static constexpr auto STATE_NO_UPDATE_DESIRED = ChromeFrameReporter_State_STATE_NO_UPDATE_DESIRED;
-  static constexpr auto STATE_PRESENTED_ALL = ChromeFrameReporter_State_STATE_PRESENTED_ALL;
-  static constexpr auto STATE_PRESENTED_PARTIAL = ChromeFrameReporter_State_STATE_PRESENTED_PARTIAL;
-  static constexpr auto STATE_DROPPED = ChromeFrameReporter_State_STATE_DROPPED;
-  static constexpr auto State_MIN = ChromeFrameReporter_State_STATE_NO_UPDATE_DESIRED;
-  static constexpr auto State_MAX = ChromeFrameReporter_State_STATE_DROPPED;
-  using FrameDropReason = ChromeFrameReporter_FrameDropReason;
-  static constexpr auto REASON_UNSPECIFIED = ChromeFrameReporter_FrameDropReason_REASON_UNSPECIFIED;
-  static constexpr auto REASON_DISPLAY_COMPOSITOR = ChromeFrameReporter_FrameDropReason_REASON_DISPLAY_COMPOSITOR;
-  static constexpr auto REASON_MAIN_THREAD = ChromeFrameReporter_FrameDropReason_REASON_MAIN_THREAD;
-  static constexpr auto REASON_CLIENT_COMPOSITOR = ChromeFrameReporter_FrameDropReason_REASON_CLIENT_COMPOSITOR;
-  static constexpr auto FrameDropReason_MIN = ChromeFrameReporter_FrameDropReason_REASON_UNSPECIFIED;
-  static constexpr auto FrameDropReason_MAX = ChromeFrameReporter_FrameDropReason_REASON_CLIENT_COMPOSITOR;
-  using ScrollState = ChromeFrameReporter_ScrollState;
-  static constexpr auto SCROLL_NONE = ChromeFrameReporter_ScrollState_SCROLL_NONE;
-  static constexpr auto SCROLL_MAIN_THREAD = ChromeFrameReporter_ScrollState_SCROLL_MAIN_THREAD;
-  static constexpr auto SCROLL_COMPOSITOR_THREAD = ChromeFrameReporter_ScrollState_SCROLL_COMPOSITOR_THREAD;
-  static constexpr auto SCROLL_UNKNOWN = ChromeFrameReporter_ScrollState_SCROLL_UNKNOWN;
-  static constexpr auto ScrollState_MIN = ChromeFrameReporter_ScrollState_SCROLL_NONE;
-  static constexpr auto ScrollState_MAX = ChromeFrameReporter_ScrollState_SCROLL_UNKNOWN;
-  enum FieldNumbers {
-    kStateFieldNumber = 1,
-    kReasonFieldNumber = 2,
-    kFrameSourceFieldNumber = 3,
-    kFrameSequenceFieldNumber = 4,
-    kAffectsSmoothnessFieldNumber = 5,
-    kScrollStateFieldNumber = 6,
-    kHasMainAnimationFieldNumber = 7,
-    kHasCompositorAnimationFieldNumber = 8,
-    kHasSmoothInputMainFieldNumber = 9,
-    kHasMissingContentFieldNumber = 10,
-    kLayerTreeHostIdFieldNumber = 11,
-  };
-
-  ChromeFrameReporter();
-  ~ChromeFrameReporter() override;
-  ChromeFrameReporter(ChromeFrameReporter&&) noexcept;
-  ChromeFrameReporter& operator=(ChromeFrameReporter&&);
-  ChromeFrameReporter(const ChromeFrameReporter&);
-  ChromeFrameReporter& operator=(const ChromeFrameReporter&);
-  bool operator==(const ChromeFrameReporter&) const;
-  bool operator!=(const ChromeFrameReporter& other) const { return !(*this == other); }
-
-  bool ParseFromArray(const void*, size_t) override;
-  std::string SerializeAsString() const override;
-  std::vector<uint8_t> SerializeAsArray() const override;
-  void Serialize(::protozero::Message*) const;
-
-  bool has_state() const { return _has_field_[1]; }
-  ChromeFrameReporter_State state() const { return state_; }
-  void set_state(ChromeFrameReporter_State value) { state_ = value; _has_field_.set(1); }
-
-  bool has_reason() const { return _has_field_[2]; }
-  ChromeFrameReporter_FrameDropReason reason() const { return reason_; }
-  void set_reason(ChromeFrameReporter_FrameDropReason value) { reason_ = value; _has_field_.set(2); }
-
-  bool has_frame_source() const { return _has_field_[3]; }
-  uint64_t frame_source() const { return frame_source_; }
-  void set_frame_source(uint64_t value) { frame_source_ = value; _has_field_.set(3); }
-
-  bool has_frame_sequence() const { return _has_field_[4]; }
-  uint64_t frame_sequence() const { return frame_sequence_; }
-  void set_frame_sequence(uint64_t value) { frame_sequence_ = value; _has_field_.set(4); }
-
-  bool has_affects_smoothness() const { return _has_field_[5]; }
-  bool affects_smoothness() const { return affects_smoothness_; }
-  void set_affects_smoothness(bool value) { affects_smoothness_ = value; _has_field_.set(5); }
-
-  bool has_scroll_state() const { return _has_field_[6]; }
-  ChromeFrameReporter_ScrollState scroll_state() const { return scroll_state_; }
-  void set_scroll_state(ChromeFrameReporter_ScrollState value) { scroll_state_ = value; _has_field_.set(6); }
-
-  bool has_has_main_animation() const { return _has_field_[7]; }
-  bool has_main_animation() const { return has_main_animation_; }
-  void set_has_main_animation(bool value) { has_main_animation_ = value; _has_field_.set(7); }
-
-  bool has_has_compositor_animation() const { return _has_field_[8]; }
-  bool has_compositor_animation() const { return has_compositor_animation_; }
-  void set_has_compositor_animation(bool value) { has_compositor_animation_ = value; _has_field_.set(8); }
-
-  bool has_has_smooth_input_main() const { return _has_field_[9]; }
-  bool has_smooth_input_main() const { return has_smooth_input_main_; }
-  void set_has_smooth_input_main(bool value) { has_smooth_input_main_ = value; _has_field_.set(9); }
-
-  bool has_has_missing_content() const { return _has_field_[10]; }
-  bool has_missing_content() const { return has_missing_content_; }
-  void set_has_missing_content(bool value) { has_missing_content_ = value; _has_field_.set(10); }
-
-  bool has_layer_tree_host_id() const { return _has_field_[11]; }
-  uint64_t layer_tree_host_id() const { return layer_tree_host_id_; }
-  void set_layer_tree_host_id(uint64_t value) { layer_tree_host_id_ = value; _has_field_.set(11); }
-
- private:
-  ChromeFrameReporter_State state_{};
-  ChromeFrameReporter_FrameDropReason reason_{};
-  uint64_t frame_source_{};
-  uint64_t frame_sequence_{};
-  bool affects_smoothness_{};
-  ChromeFrameReporter_ScrollState scroll_state_{};
-  bool has_main_animation_{};
-  bool has_compositor_animation_{};
-  bool has_smooth_input_main_{};
-  bool has_missing_content_{};
-  uint64_t layer_tree_host_id_{};
-
-  // Allows to preserve unknown protobuf fields for compatibility
-  // with future versions of .proto files.
-  std::string unknown_fields_;
-
-  std::bitset<12> _has_field_{};
-};
-
-}  // namespace perfetto
-}  // namespace protos
-}  // namespace gen
-
-#endif  // PERFETTO_PROTOS_PROTOS_PERFETTO_TRACE_TRACK_EVENT_CHROME_FRAME_REPORTER_PROTO_CPP_H_
-// gen_amalgamated begin header: gen/protos/perfetto/trace/track_event/chrome_histogram_sample.gen.h
-// DO NOT EDIT. Autogenerated by Perfetto cppgen_plugin
-#ifndef PERFETTO_PROTOS_PROTOS_PERFETTO_TRACE_TRACK_EVENT_CHROME_HISTOGRAM_SAMPLE_PROTO_CPP_H_
-#define PERFETTO_PROTOS_PROTOS_PERFETTO_TRACE_TRACK_EVENT_CHROME_HISTOGRAM_SAMPLE_PROTO_CPP_H_
-
-#include <stdint.h>
-#include <bitset>
-#include <vector>
-#include <string>
-#include <type_traits>
-
-// gen_amalgamated expanded: #include "perfetto/protozero/cpp_message_obj.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/copyable_ptr.h"
-// gen_amalgamated expanded: #include "perfetto/base/export.h"
-
-namespace perfetto {
-namespace protos {
-namespace gen {
-class ChromeHistogramSample;
-class HistogramName;
-}  // namespace perfetto
-}  // namespace protos
-}  // namespace gen
-
-namespace protozero {
-class Message;
-}  // namespace protozero
-
-namespace perfetto {
-namespace protos {
-namespace gen {
-
-class PERFETTO_EXPORT ChromeHistogramSample : public ::protozero::CppMessageObj {
- public:
-  enum FieldNumbers {
-    kNameHashFieldNumber = 1,
-    kNameFieldNumber = 2,
-    kSampleFieldNumber = 3,
-    kNameIidFieldNumber = 4,
-  };
-
-  ChromeHistogramSample();
-  ~ChromeHistogramSample() override;
-  ChromeHistogramSample(ChromeHistogramSample&&) noexcept;
-  ChromeHistogramSample& operator=(ChromeHistogramSample&&);
-  ChromeHistogramSample(const ChromeHistogramSample&);
-  ChromeHistogramSample& operator=(const ChromeHistogramSample&);
-  bool operator==(const ChromeHistogramSample&) const;
-  bool operator!=(const ChromeHistogramSample& other) const { return !(*this == other); }
-
-  bool ParseFromArray(const void*, size_t) override;
-  std::string SerializeAsString() const override;
-  std::vector<uint8_t> SerializeAsArray() const override;
-  void Serialize(::protozero::Message*) const;
-
-  bool has_name_hash() const { return _has_field_[1]; }
-  uint64_t name_hash() const { return name_hash_; }
-  void set_name_hash(uint64_t value) { name_hash_ = value; _has_field_.set(1); }
-
-  bool has_name() const { return _has_field_[2]; }
-  const std::string& name() const { return name_; }
-  void set_name(const std::string& value) { name_ = value; _has_field_.set(2); }
-
-  bool has_sample() const { return _has_field_[3]; }
-  int64_t sample() const { return sample_; }
-  void set_sample(int64_t value) { sample_ = value; _has_field_.set(3); }
-
-  bool has_name_iid() const { return _has_field_[4]; }
-  uint64_t name_iid() const { return name_iid_; }
-  void set_name_iid(uint64_t value) { name_iid_ = value; _has_field_.set(4); }
-
- private:
-  uint64_t name_hash_{};
-  std::string name_{};
-  int64_t sample_{};
-  uint64_t name_iid_{};
-
-  // Allows to preserve unknown protobuf fields for compatibility
-  // with future versions of .proto files.
-  std::string unknown_fields_;
-
-  std::bitset<5> _has_field_{};
-};
-
-
-class PERFETTO_EXPORT HistogramName : public ::protozero::CppMessageObj {
- public:
-  enum FieldNumbers {
-    kIidFieldNumber = 1,
-    kNameFieldNumber = 2,
-  };
-
-  HistogramName();
-  ~HistogramName() override;
-  HistogramName(HistogramName&&) noexcept;
-  HistogramName& operator=(HistogramName&&);
-  HistogramName(const HistogramName&);
-  HistogramName& operator=(const HistogramName&);
-  bool operator==(const HistogramName&) const;
-  bool operator!=(const HistogramName& other) const { return !(*this == other); }
-
-  bool ParseFromArray(const void*, size_t) override;
-  std::string SerializeAsString() const override;
-  std::vector<uint8_t> SerializeAsArray() const override;
-  void Serialize(::protozero::Message*) const;
-
-  bool has_iid() const { return _has_field_[1]; }
-  uint64_t iid() const { return iid_; }
-  void set_iid(uint64_t value) { iid_ = value; _has_field_.set(1); }
-
-  bool has_name() const { return _has_field_[2]; }
-  const std::string& name() const { return name_; }
-  void set_name(const std::string& value) { name_ = value; _has_field_.set(2); }
-
- private:
-  uint64_t iid_{};
-  std::string name_{};
-
-  // Allows to preserve unknown protobuf fields for compatibility
-  // with future versions of .proto files.
-  std::string unknown_fields_;
-
-  std::bitset<3> _has_field_{};
-};
-
-}  // namespace perfetto
-}  // namespace protos
-}  // namespace gen
-
-#endif  // PERFETTO_PROTOS_PROTOS_PERFETTO_TRACE_TRACK_EVENT_CHROME_HISTOGRAM_SAMPLE_PROTO_CPP_H_
-// gen_amalgamated begin header: gen/protos/perfetto/trace/track_event/chrome_keyed_service.gen.h
-// DO NOT EDIT. Autogenerated by Perfetto cppgen_plugin
-#ifndef PERFETTO_PROTOS_PROTOS_PERFETTO_TRACE_TRACK_EVENT_CHROME_KEYED_SERVICE_PROTO_CPP_H_
-#define PERFETTO_PROTOS_PROTOS_PERFETTO_TRACE_TRACK_EVENT_CHROME_KEYED_SERVICE_PROTO_CPP_H_
-
-#include <stdint.h>
-#include <bitset>
-#include <vector>
-#include <string>
-#include <type_traits>
-
-// gen_amalgamated expanded: #include "perfetto/protozero/cpp_message_obj.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/copyable_ptr.h"
-// gen_amalgamated expanded: #include "perfetto/base/export.h"
-
-namespace perfetto {
-namespace protos {
-namespace gen {
-class ChromeKeyedService;
-}  // namespace perfetto
-}  // namespace protos
-}  // namespace gen
-
-namespace protozero {
-class Message;
-}  // namespace protozero
-
-namespace perfetto {
-namespace protos {
-namespace gen {
-
-class PERFETTO_EXPORT ChromeKeyedService : public ::protozero::CppMessageObj {
- public:
-  enum FieldNumbers {
-    kNameFieldNumber = 1,
-  };
-
-  ChromeKeyedService();
-  ~ChromeKeyedService() override;
-  ChromeKeyedService(ChromeKeyedService&&) noexcept;
-  ChromeKeyedService& operator=(ChromeKeyedService&&);
-  ChromeKeyedService(const ChromeKeyedService&);
-  ChromeKeyedService& operator=(const ChromeKeyedService&);
-  bool operator==(const ChromeKeyedService&) const;
-  bool operator!=(const ChromeKeyedService& other) const { return !(*this == other); }
-
-  bool ParseFromArray(const void*, size_t) override;
-  std::string SerializeAsString() const override;
-  std::vector<uint8_t> SerializeAsArray() const override;
-  void Serialize(::protozero::Message*) const;
-
-  bool has_name() const { return _has_field_[1]; }
-  const std::string& name() const { return name_; }
-  void set_name(const std::string& value) { name_ = value; _has_field_.set(1); }
-
- private:
-  std::string name_{};
-
-  // Allows to preserve unknown protobuf fields for compatibility
-  // with future versions of .proto files.
-  std::string unknown_fields_;
-
-  std::bitset<2> _has_field_{};
-};
-
-}  // namespace perfetto
-}  // namespace protos
-}  // namespace gen
-
-#endif  // PERFETTO_PROTOS_PROTOS_PERFETTO_TRACE_TRACK_EVENT_CHROME_KEYED_SERVICE_PROTO_CPP_H_
-// gen_amalgamated begin header: gen/protos/perfetto/trace/track_event/chrome_latency_info.gen.h
-// DO NOT EDIT. Autogenerated by Perfetto cppgen_plugin
-#ifndef PERFETTO_PROTOS_PROTOS_PERFETTO_TRACE_TRACK_EVENT_CHROME_LATENCY_INFO_PROTO_CPP_H_
-#define PERFETTO_PROTOS_PROTOS_PERFETTO_TRACE_TRACK_EVENT_CHROME_LATENCY_INFO_PROTO_CPP_H_
-
-#include <stdint.h>
-#include <bitset>
-#include <vector>
-#include <string>
-#include <type_traits>
-
-// gen_amalgamated expanded: #include "perfetto/protozero/cpp_message_obj.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/copyable_ptr.h"
-// gen_amalgamated expanded: #include "perfetto/base/export.h"
-
-namespace perfetto {
-namespace protos {
-namespace gen {
-class ChromeLatencyInfo;
-class ChromeLatencyInfo_ComponentInfo;
-enum ChromeLatencyInfo_Step : int;
-enum ChromeLatencyInfo_LatencyComponentType : int;
-}  // namespace perfetto
-}  // namespace protos
-}  // namespace gen
-
-namespace protozero {
-class Message;
-}  // namespace protozero
-
-namespace perfetto {
-namespace protos {
-namespace gen {
-enum ChromeLatencyInfo_Step : int {
-  ChromeLatencyInfo_Step_STEP_UNSPECIFIED = 0,
-  ChromeLatencyInfo_Step_STEP_SEND_INPUT_EVENT_UI = 3,
-  ChromeLatencyInfo_Step_STEP_HANDLE_INPUT_EVENT_IMPL = 5,
-  ChromeLatencyInfo_Step_STEP_DID_HANDLE_INPUT_AND_OVERSCROLL = 8,
-  ChromeLatencyInfo_Step_STEP_HANDLE_INPUT_EVENT_MAIN = 4,
-  ChromeLatencyInfo_Step_STEP_MAIN_THREAD_SCROLL_UPDATE = 2,
-  ChromeLatencyInfo_Step_STEP_HANDLE_INPUT_EVENT_MAIN_COMMIT = 1,
-  ChromeLatencyInfo_Step_STEP_HANDLED_INPUT_EVENT_MAIN_OR_IMPL = 9,
-  ChromeLatencyInfo_Step_STEP_HANDLED_INPUT_EVENT_IMPL = 10,
-  ChromeLatencyInfo_Step_STEP_SWAP_BUFFERS = 6,
-  ChromeLatencyInfo_Step_STEP_DRAW_AND_SWAP = 7,
-  ChromeLatencyInfo_Step_STEP_FINISHED_SWAP_BUFFERS = 11,
-};
-enum ChromeLatencyInfo_LatencyComponentType : int {
-  ChromeLatencyInfo_LatencyComponentType_COMPONENT_UNSPECIFIED = 0,
-  ChromeLatencyInfo_LatencyComponentType_COMPONENT_INPUT_EVENT_LATENCY_BEGIN_RWH = 1,
-  ChromeLatencyInfo_LatencyComponentType_COMPONENT_INPUT_EVENT_LATENCY_SCROLL_UPDATE_ORIGINAL = 2,
-  ChromeLatencyInfo_LatencyComponentType_COMPONENT_INPUT_EVENT_LATENCY_FIRST_SCROLL_UPDATE_ORIGINAL = 3,
-  ChromeLatencyInfo_LatencyComponentType_COMPONENT_INPUT_EVENT_LATENCY_ORIGINAL = 4,
-  ChromeLatencyInfo_LatencyComponentType_COMPONENT_INPUT_EVENT_LATENCY_UI = 5,
-  ChromeLatencyInfo_LatencyComponentType_COMPONENT_INPUT_EVENT_LATENCY_RENDERER_MAIN = 6,
-  ChromeLatencyInfo_LatencyComponentType_COMPONENT_INPUT_EVENT_LATENCY_RENDERING_SCHEDULED_MAIN = 7,
-  ChromeLatencyInfo_LatencyComponentType_COMPONENT_INPUT_EVENT_LATENCY_RENDERING_SCHEDULED_IMPL = 8,
-  ChromeLatencyInfo_LatencyComponentType_COMPONENT_INPUT_EVENT_LATENCY_SCROLL_UPDATE_LAST_EVENT = 9,
-  ChromeLatencyInfo_LatencyComponentType_COMPONENT_INPUT_EVENT_LATENCY_ACK_RWH = 10,
-  ChromeLatencyInfo_LatencyComponentType_COMPONENT_INPUT_EVENT_LATENCY_RENDERER_SWAP = 11,
-  ChromeLatencyInfo_LatencyComponentType_COMPONENT_DISPLAY_COMPOSITOR_RECEIVED_FRAME = 12,
-  ChromeLatencyInfo_LatencyComponentType_COMPONENT_INPUT_EVENT_GPU_SWAP_BUFFER = 13,
-  ChromeLatencyInfo_LatencyComponentType_COMPONENT_INPUT_EVENT_LATENCY_FRAME_SWAP = 14,
-};
-
-class PERFETTO_EXPORT ChromeLatencyInfo : public ::protozero::CppMessageObj {
- public:
-  using ComponentInfo = ChromeLatencyInfo_ComponentInfo;
-  using Step = ChromeLatencyInfo_Step;
-  static constexpr auto STEP_UNSPECIFIED = ChromeLatencyInfo_Step_STEP_UNSPECIFIED;
-  static constexpr auto STEP_SEND_INPUT_EVENT_UI = ChromeLatencyInfo_Step_STEP_SEND_INPUT_EVENT_UI;
-  static constexpr auto STEP_HANDLE_INPUT_EVENT_IMPL = ChromeLatencyInfo_Step_STEP_HANDLE_INPUT_EVENT_IMPL;
-  static constexpr auto STEP_DID_HANDLE_INPUT_AND_OVERSCROLL = ChromeLatencyInfo_Step_STEP_DID_HANDLE_INPUT_AND_OVERSCROLL;
-  static constexpr auto STEP_HANDLE_INPUT_EVENT_MAIN = ChromeLatencyInfo_Step_STEP_HANDLE_INPUT_EVENT_MAIN;
-  static constexpr auto STEP_MAIN_THREAD_SCROLL_UPDATE = ChromeLatencyInfo_Step_STEP_MAIN_THREAD_SCROLL_UPDATE;
-  static constexpr auto STEP_HANDLE_INPUT_EVENT_MAIN_COMMIT = ChromeLatencyInfo_Step_STEP_HANDLE_INPUT_EVENT_MAIN_COMMIT;
-  static constexpr auto STEP_HANDLED_INPUT_EVENT_MAIN_OR_IMPL = ChromeLatencyInfo_Step_STEP_HANDLED_INPUT_EVENT_MAIN_OR_IMPL;
-  static constexpr auto STEP_HANDLED_INPUT_EVENT_IMPL = ChromeLatencyInfo_Step_STEP_HANDLED_INPUT_EVENT_IMPL;
-  static constexpr auto STEP_SWAP_BUFFERS = ChromeLatencyInfo_Step_STEP_SWAP_BUFFERS;
-  static constexpr auto STEP_DRAW_AND_SWAP = ChromeLatencyInfo_Step_STEP_DRAW_AND_SWAP;
-  static constexpr auto STEP_FINISHED_SWAP_BUFFERS = ChromeLatencyInfo_Step_STEP_FINISHED_SWAP_BUFFERS;
-  static constexpr auto Step_MIN = ChromeLatencyInfo_Step_STEP_UNSPECIFIED;
-  static constexpr auto Step_MAX = ChromeLatencyInfo_Step_STEP_FINISHED_SWAP_BUFFERS;
-  using LatencyComponentType = ChromeLatencyInfo_LatencyComponentType;
-  static constexpr auto COMPONENT_UNSPECIFIED = ChromeLatencyInfo_LatencyComponentType_COMPONENT_UNSPECIFIED;
-  static constexpr auto COMPONENT_INPUT_EVENT_LATENCY_BEGIN_RWH = ChromeLatencyInfo_LatencyComponentType_COMPONENT_INPUT_EVENT_LATENCY_BEGIN_RWH;
-  static constexpr auto COMPONENT_INPUT_EVENT_LATENCY_SCROLL_UPDATE_ORIGINAL = ChromeLatencyInfo_LatencyComponentType_COMPONENT_INPUT_EVENT_LATENCY_SCROLL_UPDATE_ORIGINAL;
-  static constexpr auto COMPONENT_INPUT_EVENT_LATENCY_FIRST_SCROLL_UPDATE_ORIGINAL = ChromeLatencyInfo_LatencyComponentType_COMPONENT_INPUT_EVENT_LATENCY_FIRST_SCROLL_UPDATE_ORIGINAL;
-  static constexpr auto COMPONENT_INPUT_EVENT_LATENCY_ORIGINAL = ChromeLatencyInfo_LatencyComponentType_COMPONENT_INPUT_EVENT_LATENCY_ORIGINAL;
-  static constexpr auto COMPONENT_INPUT_EVENT_LATENCY_UI = ChromeLatencyInfo_LatencyComponentType_COMPONENT_INPUT_EVENT_LATENCY_UI;
-  static constexpr auto COMPONENT_INPUT_EVENT_LATENCY_RENDERER_MAIN = ChromeLatencyInfo_LatencyComponentType_COMPONENT_INPUT_EVENT_LATENCY_RENDERER_MAIN;
-  static constexpr auto COMPONENT_INPUT_EVENT_LATENCY_RENDERING_SCHEDULED_MAIN = ChromeLatencyInfo_LatencyComponentType_COMPONENT_INPUT_EVENT_LATENCY_RENDERING_SCHEDULED_MAIN;
-  static constexpr auto COMPONENT_INPUT_EVENT_LATENCY_RENDERING_SCHEDULED_IMPL = ChromeLatencyInfo_LatencyComponentType_COMPONENT_INPUT_EVENT_LATENCY_RENDERING_SCHEDULED_IMPL;
-  static constexpr auto COMPONENT_INPUT_EVENT_LATENCY_SCROLL_UPDATE_LAST_EVENT = ChromeLatencyInfo_LatencyComponentType_COMPONENT_INPUT_EVENT_LATENCY_SCROLL_UPDATE_LAST_EVENT;
-  static constexpr auto COMPONENT_INPUT_EVENT_LATENCY_ACK_RWH = ChromeLatencyInfo_LatencyComponentType_COMPONENT_INPUT_EVENT_LATENCY_ACK_RWH;
-  static constexpr auto COMPONENT_INPUT_EVENT_LATENCY_RENDERER_SWAP = ChromeLatencyInfo_LatencyComponentType_COMPONENT_INPUT_EVENT_LATENCY_RENDERER_SWAP;
-  static constexpr auto COMPONENT_DISPLAY_COMPOSITOR_RECEIVED_FRAME = ChromeLatencyInfo_LatencyComponentType_COMPONENT_DISPLAY_COMPOSITOR_RECEIVED_FRAME;
-  static constexpr auto COMPONENT_INPUT_EVENT_GPU_SWAP_BUFFER = ChromeLatencyInfo_LatencyComponentType_COMPONENT_INPUT_EVENT_GPU_SWAP_BUFFER;
-  static constexpr auto COMPONENT_INPUT_EVENT_LATENCY_FRAME_SWAP = ChromeLatencyInfo_LatencyComponentType_COMPONENT_INPUT_EVENT_LATENCY_FRAME_SWAP;
-  static constexpr auto LatencyComponentType_MIN = ChromeLatencyInfo_LatencyComponentType_COMPONENT_UNSPECIFIED;
-  static constexpr auto LatencyComponentType_MAX = ChromeLatencyInfo_LatencyComponentType_COMPONENT_INPUT_EVENT_LATENCY_FRAME_SWAP;
-  enum FieldNumbers {
-    kTraceIdFieldNumber = 1,
-    kStepFieldNumber = 2,
-    kFrameTreeNodeIdFieldNumber = 3,
-    kComponentInfoFieldNumber = 4,
-    kIsCoalescedFieldNumber = 5,
-    kGestureScrollIdFieldNumber = 6,
-  };
-
-  ChromeLatencyInfo();
-  ~ChromeLatencyInfo() override;
-  ChromeLatencyInfo(ChromeLatencyInfo&&) noexcept;
-  ChromeLatencyInfo& operator=(ChromeLatencyInfo&&);
-  ChromeLatencyInfo(const ChromeLatencyInfo&);
-  ChromeLatencyInfo& operator=(const ChromeLatencyInfo&);
-  bool operator==(const ChromeLatencyInfo&) const;
-  bool operator!=(const ChromeLatencyInfo& other) const { return !(*this == other); }
-
-  bool ParseFromArray(const void*, size_t) override;
-  std::string SerializeAsString() const override;
-  std::vector<uint8_t> SerializeAsArray() const override;
-  void Serialize(::protozero::Message*) const;
-
-  bool has_trace_id() const { return _has_field_[1]; }
-  int64_t trace_id() const { return trace_id_; }
-  void set_trace_id(int64_t value) { trace_id_ = value; _has_field_.set(1); }
-
-  bool has_step() const { return _has_field_[2]; }
-  ChromeLatencyInfo_Step step() const { return step_; }
-  void set_step(ChromeLatencyInfo_Step value) { step_ = value; _has_field_.set(2); }
-
-  bool has_frame_tree_node_id() const { return _has_field_[3]; }
-  int32_t frame_tree_node_id() const { return frame_tree_node_id_; }
-  void set_frame_tree_node_id(int32_t value) { frame_tree_node_id_ = value; _has_field_.set(3); }
-
-  const std::vector<ChromeLatencyInfo_ComponentInfo>& component_info() const { return component_info_; }
-  std::vector<ChromeLatencyInfo_ComponentInfo>* mutable_component_info() { return &component_info_; }
-  int component_info_size() const;
-  void clear_component_info();
-  ChromeLatencyInfo_ComponentInfo* add_component_info();
-
-  bool has_is_coalesced() const { return _has_field_[5]; }
-  bool is_coalesced() const { return is_coalesced_; }
-  void set_is_coalesced(bool value) { is_coalesced_ = value; _has_field_.set(5); }
-
-  bool has_gesture_scroll_id() const { return _has_field_[6]; }
-  int64_t gesture_scroll_id() const { return gesture_scroll_id_; }
-  void set_gesture_scroll_id(int64_t value) { gesture_scroll_id_ = value; _has_field_.set(6); }
-
- private:
-  int64_t trace_id_{};
-  ChromeLatencyInfo_Step step_{};
-  int32_t frame_tree_node_id_{};
-  std::vector<ChromeLatencyInfo_ComponentInfo> component_info_;
-  bool is_coalesced_{};
-  int64_t gesture_scroll_id_{};
-
-  // Allows to preserve unknown protobuf fields for compatibility
-  // with future versions of .proto files.
-  std::string unknown_fields_;
-
-  std::bitset<7> _has_field_{};
-};
-
-
-class PERFETTO_EXPORT ChromeLatencyInfo_ComponentInfo : public ::protozero::CppMessageObj {
- public:
-  enum FieldNumbers {
-    kComponentTypeFieldNumber = 1,
-    kTimeUsFieldNumber = 2,
-  };
-
-  ChromeLatencyInfo_ComponentInfo();
-  ~ChromeLatencyInfo_ComponentInfo() override;
-  ChromeLatencyInfo_ComponentInfo(ChromeLatencyInfo_ComponentInfo&&) noexcept;
-  ChromeLatencyInfo_ComponentInfo& operator=(ChromeLatencyInfo_ComponentInfo&&);
-  ChromeLatencyInfo_ComponentInfo(const ChromeLatencyInfo_ComponentInfo&);
-  ChromeLatencyInfo_ComponentInfo& operator=(const ChromeLatencyInfo_ComponentInfo&);
-  bool operator==(const ChromeLatencyInfo_ComponentInfo&) const;
-  bool operator!=(const ChromeLatencyInfo_ComponentInfo& other) const { return !(*this == other); }
-
-  bool ParseFromArray(const void*, size_t) override;
-  std::string SerializeAsString() const override;
-  std::vector<uint8_t> SerializeAsArray() const override;
-  void Serialize(::protozero::Message*) const;
-
-  bool has_component_type() const { return _has_field_[1]; }
-  ChromeLatencyInfo_LatencyComponentType component_type() const { return component_type_; }
-  void set_component_type(ChromeLatencyInfo_LatencyComponentType value) { component_type_ = value; _has_field_.set(1); }
-
-  bool has_time_us() const { return _has_field_[2]; }
-  uint64_t time_us() const { return time_us_; }
-  void set_time_us(uint64_t value) { time_us_ = value; _has_field_.set(2); }
-
- private:
-  ChromeLatencyInfo_LatencyComponentType component_type_{};
-  uint64_t time_us_{};
-
-  // Allows to preserve unknown protobuf fields for compatibility
-  // with future versions of .proto files.
-  std::string unknown_fields_;
-
-  std::bitset<3> _has_field_{};
-};
-
-}  // namespace perfetto
-}  // namespace protos
-}  // namespace gen
-
-#endif  // PERFETTO_PROTOS_PROTOS_PERFETTO_TRACE_TRACK_EVENT_CHROME_LATENCY_INFO_PROTO_CPP_H_
-// gen_amalgamated begin header: gen/protos/perfetto/trace/track_event/chrome_legacy_ipc.gen.h
-// DO NOT EDIT. Autogenerated by Perfetto cppgen_plugin
-#ifndef PERFETTO_PROTOS_PROTOS_PERFETTO_TRACE_TRACK_EVENT_CHROME_LEGACY_IPC_PROTO_CPP_H_
-#define PERFETTO_PROTOS_PROTOS_PERFETTO_TRACE_TRACK_EVENT_CHROME_LEGACY_IPC_PROTO_CPP_H_
-
-#include <stdint.h>
-#include <bitset>
-#include <vector>
-#include <string>
-#include <type_traits>
-
-// gen_amalgamated expanded: #include "perfetto/protozero/cpp_message_obj.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/copyable_ptr.h"
-// gen_amalgamated expanded: #include "perfetto/base/export.h"
-
-namespace perfetto {
-namespace protos {
-namespace gen {
-class ChromeLegacyIpc;
-enum ChromeLegacyIpc_MessageClass : int;
-}  // namespace perfetto
-}  // namespace protos
-}  // namespace gen
-
-namespace protozero {
-class Message;
-}  // namespace protozero
-
-namespace perfetto {
-namespace protos {
-namespace gen {
-enum ChromeLegacyIpc_MessageClass : int {
-  ChromeLegacyIpc_MessageClass_CLASS_UNSPECIFIED = 0,
-  ChromeLegacyIpc_MessageClass_CLASS_AUTOMATION = 1,
-  ChromeLegacyIpc_MessageClass_CLASS_FRAME = 2,
-  ChromeLegacyIpc_MessageClass_CLASS_PAGE = 3,
-  ChromeLegacyIpc_MessageClass_CLASS_VIEW = 4,
-  ChromeLegacyIpc_MessageClass_CLASS_WIDGET = 5,
-  ChromeLegacyIpc_MessageClass_CLASS_INPUT = 6,
-  ChromeLegacyIpc_MessageClass_CLASS_TEST = 7,
-  ChromeLegacyIpc_MessageClass_CLASS_WORKER = 8,
-  ChromeLegacyIpc_MessageClass_CLASS_NACL = 9,
-  ChromeLegacyIpc_MessageClass_CLASS_GPU_CHANNEL = 10,
-  ChromeLegacyIpc_MessageClass_CLASS_MEDIA = 11,
-  ChromeLegacyIpc_MessageClass_CLASS_PPAPI = 12,
-  ChromeLegacyIpc_MessageClass_CLASS_CHROME = 13,
-  ChromeLegacyIpc_MessageClass_CLASS_DRAG = 14,
-  ChromeLegacyIpc_MessageClass_CLASS_PRINT = 15,
-  ChromeLegacyIpc_MessageClass_CLASS_EXTENSION = 16,
-  ChromeLegacyIpc_MessageClass_CLASS_TEXT_INPUT_CLIENT = 17,
-  ChromeLegacyIpc_MessageClass_CLASS_BLINK_TEST = 18,
-  ChromeLegacyIpc_MessageClass_CLASS_ACCESSIBILITY = 19,
-  ChromeLegacyIpc_MessageClass_CLASS_PRERENDER = 20,
-  ChromeLegacyIpc_MessageClass_CLASS_CHROMOTING = 21,
-  ChromeLegacyIpc_MessageClass_CLASS_BROWSER_PLUGIN = 22,
-  ChromeLegacyIpc_MessageClass_CLASS_ANDROID_WEB_VIEW = 23,
-  ChromeLegacyIpc_MessageClass_CLASS_NACL_HOST = 24,
-  ChromeLegacyIpc_MessageClass_CLASS_ENCRYPTED_MEDIA = 25,
-  ChromeLegacyIpc_MessageClass_CLASS_CAST = 26,
-  ChromeLegacyIpc_MessageClass_CLASS_GIN_JAVA_BRIDGE = 27,
-  ChromeLegacyIpc_MessageClass_CLASS_CHROME_UTILITY_PRINTING = 28,
-  ChromeLegacyIpc_MessageClass_CLASS_OZONE_GPU = 29,
-  ChromeLegacyIpc_MessageClass_CLASS_WEB_TEST = 30,
-  ChromeLegacyIpc_MessageClass_CLASS_NETWORK_HINTS = 31,
-  ChromeLegacyIpc_MessageClass_CLASS_EXTENSIONS_GUEST_VIEW = 32,
-  ChromeLegacyIpc_MessageClass_CLASS_GUEST_VIEW = 33,
-  ChromeLegacyIpc_MessageClass_CLASS_MEDIA_PLAYER_DELEGATE = 34,
-  ChromeLegacyIpc_MessageClass_CLASS_EXTENSION_WORKER = 35,
-  ChromeLegacyIpc_MessageClass_CLASS_SUBRESOURCE_FILTER = 36,
-  ChromeLegacyIpc_MessageClass_CLASS_UNFREEZABLE_FRAME = 37,
-};
-
-class PERFETTO_EXPORT ChromeLegacyIpc : public ::protozero::CppMessageObj {
- public:
-  using MessageClass = ChromeLegacyIpc_MessageClass;
-  static constexpr auto CLASS_UNSPECIFIED = ChromeLegacyIpc_MessageClass_CLASS_UNSPECIFIED;
-  static constexpr auto CLASS_AUTOMATION = ChromeLegacyIpc_MessageClass_CLASS_AUTOMATION;
-  static constexpr auto CLASS_FRAME = ChromeLegacyIpc_MessageClass_CLASS_FRAME;
-  static constexpr auto CLASS_PAGE = ChromeLegacyIpc_MessageClass_CLASS_PAGE;
-  static constexpr auto CLASS_VIEW = ChromeLegacyIpc_MessageClass_CLASS_VIEW;
-  static constexpr auto CLASS_WIDGET = ChromeLegacyIpc_MessageClass_CLASS_WIDGET;
-  static constexpr auto CLASS_INPUT = ChromeLegacyIpc_MessageClass_CLASS_INPUT;
-  static constexpr auto CLASS_TEST = ChromeLegacyIpc_MessageClass_CLASS_TEST;
-  static constexpr auto CLASS_WORKER = ChromeLegacyIpc_MessageClass_CLASS_WORKER;
-  static constexpr auto CLASS_NACL = ChromeLegacyIpc_MessageClass_CLASS_NACL;
-  static constexpr auto CLASS_GPU_CHANNEL = ChromeLegacyIpc_MessageClass_CLASS_GPU_CHANNEL;
-  static constexpr auto CLASS_MEDIA = ChromeLegacyIpc_MessageClass_CLASS_MEDIA;
-  static constexpr auto CLASS_PPAPI = ChromeLegacyIpc_MessageClass_CLASS_PPAPI;
-  static constexpr auto CLASS_CHROME = ChromeLegacyIpc_MessageClass_CLASS_CHROME;
-  static constexpr auto CLASS_DRAG = ChromeLegacyIpc_MessageClass_CLASS_DRAG;
-  static constexpr auto CLASS_PRINT = ChromeLegacyIpc_MessageClass_CLASS_PRINT;
-  static constexpr auto CLASS_EXTENSION = ChromeLegacyIpc_MessageClass_CLASS_EXTENSION;
-  static constexpr auto CLASS_TEXT_INPUT_CLIENT = ChromeLegacyIpc_MessageClass_CLASS_TEXT_INPUT_CLIENT;
-  static constexpr auto CLASS_BLINK_TEST = ChromeLegacyIpc_MessageClass_CLASS_BLINK_TEST;
-  static constexpr auto CLASS_ACCESSIBILITY = ChromeLegacyIpc_MessageClass_CLASS_ACCESSIBILITY;
-  static constexpr auto CLASS_PRERENDER = ChromeLegacyIpc_MessageClass_CLASS_PRERENDER;
-  static constexpr auto CLASS_CHROMOTING = ChromeLegacyIpc_MessageClass_CLASS_CHROMOTING;
-  static constexpr auto CLASS_BROWSER_PLUGIN = ChromeLegacyIpc_MessageClass_CLASS_BROWSER_PLUGIN;
-  static constexpr auto CLASS_ANDROID_WEB_VIEW = ChromeLegacyIpc_MessageClass_CLASS_ANDROID_WEB_VIEW;
-  static constexpr auto CLASS_NACL_HOST = ChromeLegacyIpc_MessageClass_CLASS_NACL_HOST;
-  static constexpr auto CLASS_ENCRYPTED_MEDIA = ChromeLegacyIpc_MessageClass_CLASS_ENCRYPTED_MEDIA;
-  static constexpr auto CLASS_CAST = ChromeLegacyIpc_MessageClass_CLASS_CAST;
-  static constexpr auto CLASS_GIN_JAVA_BRIDGE = ChromeLegacyIpc_MessageClass_CLASS_GIN_JAVA_BRIDGE;
-  static constexpr auto CLASS_CHROME_UTILITY_PRINTING = ChromeLegacyIpc_MessageClass_CLASS_CHROME_UTILITY_PRINTING;
-  static constexpr auto CLASS_OZONE_GPU = ChromeLegacyIpc_MessageClass_CLASS_OZONE_GPU;
-  static constexpr auto CLASS_WEB_TEST = ChromeLegacyIpc_MessageClass_CLASS_WEB_TEST;
-  static constexpr auto CLASS_NETWORK_HINTS = ChromeLegacyIpc_MessageClass_CLASS_NETWORK_HINTS;
-  static constexpr auto CLASS_EXTENSIONS_GUEST_VIEW = ChromeLegacyIpc_MessageClass_CLASS_EXTENSIONS_GUEST_VIEW;
-  static constexpr auto CLASS_GUEST_VIEW = ChromeLegacyIpc_MessageClass_CLASS_GUEST_VIEW;
-  static constexpr auto CLASS_MEDIA_PLAYER_DELEGATE = ChromeLegacyIpc_MessageClass_CLASS_MEDIA_PLAYER_DELEGATE;
-  static constexpr auto CLASS_EXTENSION_WORKER = ChromeLegacyIpc_MessageClass_CLASS_EXTENSION_WORKER;
-  static constexpr auto CLASS_SUBRESOURCE_FILTER = ChromeLegacyIpc_MessageClass_CLASS_SUBRESOURCE_FILTER;
-  static constexpr auto CLASS_UNFREEZABLE_FRAME = ChromeLegacyIpc_MessageClass_CLASS_UNFREEZABLE_FRAME;
-  static constexpr auto MessageClass_MIN = ChromeLegacyIpc_MessageClass_CLASS_UNSPECIFIED;
-  static constexpr auto MessageClass_MAX = ChromeLegacyIpc_MessageClass_CLASS_UNFREEZABLE_FRAME;
-  enum FieldNumbers {
-    kMessageClassFieldNumber = 1,
-    kMessageLineFieldNumber = 2,
-  };
-
-  ChromeLegacyIpc();
-  ~ChromeLegacyIpc() override;
-  ChromeLegacyIpc(ChromeLegacyIpc&&) noexcept;
-  ChromeLegacyIpc& operator=(ChromeLegacyIpc&&);
-  ChromeLegacyIpc(const ChromeLegacyIpc&);
-  ChromeLegacyIpc& operator=(const ChromeLegacyIpc&);
-  bool operator==(const ChromeLegacyIpc&) const;
-  bool operator!=(const ChromeLegacyIpc& other) const { return !(*this == other); }
-
-  bool ParseFromArray(const void*, size_t) override;
-  std::string SerializeAsString() const override;
-  std::vector<uint8_t> SerializeAsArray() const override;
-  void Serialize(::protozero::Message*) const;
-
-  bool has_message_class() const { return _has_field_[1]; }
-  ChromeLegacyIpc_MessageClass message_class() const { return message_class_; }
-  void set_message_class(ChromeLegacyIpc_MessageClass value) { message_class_ = value; _has_field_.set(1); }
-
-  bool has_message_line() const { return _has_field_[2]; }
-  uint32_t message_line() const { return message_line_; }
-  void set_message_line(uint32_t value) { message_line_ = value; _has_field_.set(2); }
-
- private:
-  ChromeLegacyIpc_MessageClass message_class_{};
-  uint32_t message_line_{};
-
-  // Allows to preserve unknown protobuf fields for compatibility
-  // with future versions of .proto files.
-  std::string unknown_fields_;
-
-  std::bitset<3> _has_field_{};
-};
-
-}  // namespace perfetto
-}  // namespace protos
-}  // namespace gen
-
-#endif  // PERFETTO_PROTOS_PROTOS_PERFETTO_TRACE_TRACK_EVENT_CHROME_LEGACY_IPC_PROTO_CPP_H_
-// gen_amalgamated begin header: gen/protos/perfetto/trace/track_event/chrome_message_pump.gen.h
-// DO NOT EDIT. Autogenerated by Perfetto cppgen_plugin
-#ifndef PERFETTO_PROTOS_PROTOS_PERFETTO_TRACE_TRACK_EVENT_CHROME_MESSAGE_PUMP_PROTO_CPP_H_
-#define PERFETTO_PROTOS_PROTOS_PERFETTO_TRACE_TRACK_EVENT_CHROME_MESSAGE_PUMP_PROTO_CPP_H_
-
-#include <stdint.h>
-#include <bitset>
-#include <vector>
-#include <string>
-#include <type_traits>
-
-// gen_amalgamated expanded: #include "perfetto/protozero/cpp_message_obj.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/copyable_ptr.h"
-// gen_amalgamated expanded: #include "perfetto/base/export.h"
-
-namespace perfetto {
-namespace protos {
-namespace gen {
-class ChromeMessagePump;
-}  // namespace perfetto
-}  // namespace protos
-}  // namespace gen
-
-namespace protozero {
-class Message;
-}  // namespace protozero
-
-namespace perfetto {
-namespace protos {
-namespace gen {
-
-class PERFETTO_EXPORT ChromeMessagePump : public ::protozero::CppMessageObj {
- public:
-  enum FieldNumbers {
-    kSentMessagesInQueueFieldNumber = 1,
-    kIoHandlerLocationIidFieldNumber = 2,
-  };
-
-  ChromeMessagePump();
-  ~ChromeMessagePump() override;
-  ChromeMessagePump(ChromeMessagePump&&) noexcept;
-  ChromeMessagePump& operator=(ChromeMessagePump&&);
-  ChromeMessagePump(const ChromeMessagePump&);
-  ChromeMessagePump& operator=(const ChromeMessagePump&);
-  bool operator==(const ChromeMessagePump&) const;
-  bool operator!=(const ChromeMessagePump& other) const { return !(*this == other); }
-
-  bool ParseFromArray(const void*, size_t) override;
-  std::string SerializeAsString() const override;
-  std::vector<uint8_t> SerializeAsArray() const override;
-  void Serialize(::protozero::Message*) const;
-
-  bool has_sent_messages_in_queue() const { return _has_field_[1]; }
-  bool sent_messages_in_queue() const { return sent_messages_in_queue_; }
-  void set_sent_messages_in_queue(bool value) { sent_messages_in_queue_ = value; _has_field_.set(1); }
-
-  bool has_io_handler_location_iid() const { return _has_field_[2]; }
-  uint64_t io_handler_location_iid() const { return io_handler_location_iid_; }
-  void set_io_handler_location_iid(uint64_t value) { io_handler_location_iid_ = value; _has_field_.set(2); }
-
- private:
-  bool sent_messages_in_queue_{};
-  uint64_t io_handler_location_iid_{};
-
-  // Allows to preserve unknown protobuf fields for compatibility
-  // with future versions of .proto files.
-  std::string unknown_fields_;
-
-  std::bitset<3> _has_field_{};
-};
-
-}  // namespace perfetto
-}  // namespace protos
-}  // namespace gen
-
-#endif  // PERFETTO_PROTOS_PROTOS_PERFETTO_TRACE_TRACK_EVENT_CHROME_MESSAGE_PUMP_PROTO_CPP_H_
-// gen_amalgamated begin header: gen/protos/perfetto/trace/track_event/chrome_mojo_event_info.gen.h
-// DO NOT EDIT. Autogenerated by Perfetto cppgen_plugin
-#ifndef PERFETTO_PROTOS_PROTOS_PERFETTO_TRACE_TRACK_EVENT_CHROME_MOJO_EVENT_INFO_PROTO_CPP_H_
-#define PERFETTO_PROTOS_PROTOS_PERFETTO_TRACE_TRACK_EVENT_CHROME_MOJO_EVENT_INFO_PROTO_CPP_H_
-
-#include <stdint.h>
-#include <bitset>
-#include <vector>
-#include <string>
-#include <type_traits>
-
-// gen_amalgamated expanded: #include "perfetto/protozero/cpp_message_obj.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/copyable_ptr.h"
-// gen_amalgamated expanded: #include "perfetto/base/export.h"
-
-namespace perfetto {
-namespace protos {
-namespace gen {
-class ChromeMojoEventInfo;
-}  // namespace perfetto
-}  // namespace protos
-}  // namespace gen
-
-namespace protozero {
-class Message;
-}  // namespace protozero
-
-namespace perfetto {
-namespace protos {
-namespace gen {
-
-class PERFETTO_EXPORT ChromeMojoEventInfo : public ::protozero::CppMessageObj {
- public:
-  enum FieldNumbers {
-    kWatcherNotifyInterfaceTagFieldNumber = 1,
-    kIpcHashFieldNumber = 2,
-    kMojoInterfaceTagFieldNumber = 3,
-  };
-
-  ChromeMojoEventInfo();
-  ~ChromeMojoEventInfo() override;
-  ChromeMojoEventInfo(ChromeMojoEventInfo&&) noexcept;
-  ChromeMojoEventInfo& operator=(ChromeMojoEventInfo&&);
-  ChromeMojoEventInfo(const ChromeMojoEventInfo&);
-  ChromeMojoEventInfo& operator=(const ChromeMojoEventInfo&);
-  bool operator==(const ChromeMojoEventInfo&) const;
-  bool operator!=(const ChromeMojoEventInfo& other) const { return !(*this == other); }
-
-  bool ParseFromArray(const void*, size_t) override;
-  std::string SerializeAsString() const override;
-  std::vector<uint8_t> SerializeAsArray() const override;
-  void Serialize(::protozero::Message*) const;
-
-  bool has_watcher_notify_interface_tag() const { return _has_field_[1]; }
-  const std::string& watcher_notify_interface_tag() const { return watcher_notify_interface_tag_; }
-  void set_watcher_notify_interface_tag(const std::string& value) { watcher_notify_interface_tag_ = value; _has_field_.set(1); }
-
-  bool has_ipc_hash() const { return _has_field_[2]; }
-  uint32_t ipc_hash() const { return ipc_hash_; }
-  void set_ipc_hash(uint32_t value) { ipc_hash_ = value; _has_field_.set(2); }
-
-  bool has_mojo_interface_tag() const { return _has_field_[3]; }
-  const std::string& mojo_interface_tag() const { return mojo_interface_tag_; }
-  void set_mojo_interface_tag(const std::string& value) { mojo_interface_tag_ = value; _has_field_.set(3); }
-
- private:
-  std::string watcher_notify_interface_tag_{};
-  uint32_t ipc_hash_{};
-  std::string mojo_interface_tag_{};
-
-  // Allows to preserve unknown protobuf fields for compatibility
-  // with future versions of .proto files.
-  std::string unknown_fields_;
-
-  std::bitset<4> _has_field_{};
-};
-
-}  // namespace perfetto
-}  // namespace protos
-}  // namespace gen
-
-#endif  // PERFETTO_PROTOS_PROTOS_PERFETTO_TRACE_TRACK_EVENT_CHROME_MOJO_EVENT_INFO_PROTO_CPP_H_
-// gen_amalgamated begin header: gen/protos/perfetto/trace/track_event/chrome_process_descriptor.gen.h
-// DO NOT EDIT. Autogenerated by Perfetto cppgen_plugin
-#ifndef PERFETTO_PROTOS_PROTOS_PERFETTO_TRACE_TRACK_EVENT_CHROME_PROCESS_DESCRIPTOR_PROTO_CPP_H_
-#define PERFETTO_PROTOS_PROTOS_PERFETTO_TRACE_TRACK_EVENT_CHROME_PROCESS_DESCRIPTOR_PROTO_CPP_H_
-
-#include <stdint.h>
-#include <bitset>
-#include <vector>
-#include <string>
-#include <type_traits>
-
-// gen_amalgamated expanded: #include "perfetto/protozero/cpp_message_obj.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/copyable_ptr.h"
-// gen_amalgamated expanded: #include "perfetto/base/export.h"
-
-namespace perfetto {
-namespace protos {
-namespace gen {
-class ChromeProcessDescriptor;
-enum ChromeProcessDescriptor_ProcessType : int;
-}  // namespace perfetto
-}  // namespace protos
-}  // namespace gen
-
-namespace protozero {
-class Message;
-}  // namespace protozero
-
-namespace perfetto {
-namespace protos {
-namespace gen {
-enum ChromeProcessDescriptor_ProcessType : int {
-  ChromeProcessDescriptor_ProcessType_PROCESS_UNSPECIFIED = 0,
-  ChromeProcessDescriptor_ProcessType_PROCESS_BROWSER = 1,
-  ChromeProcessDescriptor_ProcessType_PROCESS_RENDERER = 2,
-  ChromeProcessDescriptor_ProcessType_PROCESS_UTILITY = 3,
-  ChromeProcessDescriptor_ProcessType_PROCESS_ZYGOTE = 4,
-  ChromeProcessDescriptor_ProcessType_PROCESS_SANDBOX_HELPER = 5,
-  ChromeProcessDescriptor_ProcessType_PROCESS_GPU = 6,
-  ChromeProcessDescriptor_ProcessType_PROCESS_PPAPI_PLUGIN = 7,
-  ChromeProcessDescriptor_ProcessType_PROCESS_PPAPI_BROKER = 8,
-  ChromeProcessDescriptor_ProcessType_PROCESS_SERVICE_NETWORK = 9,
-  ChromeProcessDescriptor_ProcessType_PROCESS_SERVICE_TRACING = 10,
-  ChromeProcessDescriptor_ProcessType_PROCESS_SERVICE_STORAGE = 11,
-  ChromeProcessDescriptor_ProcessType_PROCESS_SERVICE_AUDIO = 12,
-  ChromeProcessDescriptor_ProcessType_PROCESS_SERVICE_DATA_DECODER = 13,
-  ChromeProcessDescriptor_ProcessType_PROCESS_SERVICE_UTIL_WIN = 14,
-  ChromeProcessDescriptor_ProcessType_PROCESS_SERVICE_PROXY_RESOLVER = 15,
-  ChromeProcessDescriptor_ProcessType_PROCESS_SERVICE_CDM = 16,
-  ChromeProcessDescriptor_ProcessType_PROCESS_SERVICE_VIDEO_CAPTURE = 17,
-  ChromeProcessDescriptor_ProcessType_PROCESS_SERVICE_UNZIPPER = 18,
-  ChromeProcessDescriptor_ProcessType_PROCESS_SERVICE_MIRRORING = 19,
-  ChromeProcessDescriptor_ProcessType_PROCESS_SERVICE_FILEPATCHER = 20,
-  ChromeProcessDescriptor_ProcessType_PROCESS_SERVICE_TTS = 21,
-  ChromeProcessDescriptor_ProcessType_PROCESS_SERVICE_PRINTING = 22,
-  ChromeProcessDescriptor_ProcessType_PROCESS_SERVICE_QUARANTINE = 23,
-  ChromeProcessDescriptor_ProcessType_PROCESS_SERVICE_CROS_LOCALSEARCH = 24,
-  ChromeProcessDescriptor_ProcessType_PROCESS_SERVICE_CROS_ASSISTANT_AUDIO_DECODER = 25,
-  ChromeProcessDescriptor_ProcessType_PROCESS_SERVICE_FILEUTIL = 26,
-  ChromeProcessDescriptor_ProcessType_PROCESS_SERVICE_PRINTCOMPOSITOR = 27,
-  ChromeProcessDescriptor_ProcessType_PROCESS_SERVICE_PAINTPREVIEW = 28,
-  ChromeProcessDescriptor_ProcessType_PROCESS_SERVICE_SPEECHRECOGNITION = 29,
-  ChromeProcessDescriptor_ProcessType_PROCESS_SERVICE_XRDEVICE = 30,
-  ChromeProcessDescriptor_ProcessType_PROCESS_SERVICE_READICON = 31,
-  ChromeProcessDescriptor_ProcessType_PROCESS_SERVICE_LANGUAGEDETECTION = 32,
-  ChromeProcessDescriptor_ProcessType_PROCESS_SERVICE_SHARING = 33,
-  ChromeProcessDescriptor_ProcessType_PROCESS_SERVICE_MEDIAPARSER = 34,
-  ChromeProcessDescriptor_ProcessType_PROCESS_SERVICE_QRCODEGENERATOR = 35,
-  ChromeProcessDescriptor_ProcessType_PROCESS_SERVICE_PROFILEIMPORT = 36,
-  ChromeProcessDescriptor_ProcessType_PROCESS_SERVICE_IME = 37,
-  ChromeProcessDescriptor_ProcessType_PROCESS_SERVICE_RECORDING = 38,
-  ChromeProcessDescriptor_ProcessType_PROCESS_SERVICE_SHAPEDETECTION = 39,
-};
-
-class PERFETTO_EXPORT ChromeProcessDescriptor : public ::protozero::CppMessageObj {
- public:
-  using ProcessType = ChromeProcessDescriptor_ProcessType;
-  static constexpr auto PROCESS_UNSPECIFIED = ChromeProcessDescriptor_ProcessType_PROCESS_UNSPECIFIED;
-  static constexpr auto PROCESS_BROWSER = ChromeProcessDescriptor_ProcessType_PROCESS_BROWSER;
-  static constexpr auto PROCESS_RENDERER = ChromeProcessDescriptor_ProcessType_PROCESS_RENDERER;
-  static constexpr auto PROCESS_UTILITY = ChromeProcessDescriptor_ProcessType_PROCESS_UTILITY;
-  static constexpr auto PROCESS_ZYGOTE = ChromeProcessDescriptor_ProcessType_PROCESS_ZYGOTE;
-  static constexpr auto PROCESS_SANDBOX_HELPER = ChromeProcessDescriptor_ProcessType_PROCESS_SANDBOX_HELPER;
-  static constexpr auto PROCESS_GPU = ChromeProcessDescriptor_ProcessType_PROCESS_GPU;
-  static constexpr auto PROCESS_PPAPI_PLUGIN = ChromeProcessDescriptor_ProcessType_PROCESS_PPAPI_PLUGIN;
-  static constexpr auto PROCESS_PPAPI_BROKER = ChromeProcessDescriptor_ProcessType_PROCESS_PPAPI_BROKER;
-  static constexpr auto PROCESS_SERVICE_NETWORK = ChromeProcessDescriptor_ProcessType_PROCESS_SERVICE_NETWORK;
-  static constexpr auto PROCESS_SERVICE_TRACING = ChromeProcessDescriptor_ProcessType_PROCESS_SERVICE_TRACING;
-  static constexpr auto PROCESS_SERVICE_STORAGE = ChromeProcessDescriptor_ProcessType_PROCESS_SERVICE_STORAGE;
-  static constexpr auto PROCESS_SERVICE_AUDIO = ChromeProcessDescriptor_ProcessType_PROCESS_SERVICE_AUDIO;
-  static constexpr auto PROCESS_SERVICE_DATA_DECODER = ChromeProcessDescriptor_ProcessType_PROCESS_SERVICE_DATA_DECODER;
-  static constexpr auto PROCESS_SERVICE_UTIL_WIN = ChromeProcessDescriptor_ProcessType_PROCESS_SERVICE_UTIL_WIN;
-  static constexpr auto PROCESS_SERVICE_PROXY_RESOLVER = ChromeProcessDescriptor_ProcessType_PROCESS_SERVICE_PROXY_RESOLVER;
-  static constexpr auto PROCESS_SERVICE_CDM = ChromeProcessDescriptor_ProcessType_PROCESS_SERVICE_CDM;
-  static constexpr auto PROCESS_SERVICE_VIDEO_CAPTURE = ChromeProcessDescriptor_ProcessType_PROCESS_SERVICE_VIDEO_CAPTURE;
-  static constexpr auto PROCESS_SERVICE_UNZIPPER = ChromeProcessDescriptor_ProcessType_PROCESS_SERVICE_UNZIPPER;
-  static constexpr auto PROCESS_SERVICE_MIRRORING = ChromeProcessDescriptor_ProcessType_PROCESS_SERVICE_MIRRORING;
-  static constexpr auto PROCESS_SERVICE_FILEPATCHER = ChromeProcessDescriptor_ProcessType_PROCESS_SERVICE_FILEPATCHER;
-  static constexpr auto PROCESS_SERVICE_TTS = ChromeProcessDescriptor_ProcessType_PROCESS_SERVICE_TTS;
-  static constexpr auto PROCESS_SERVICE_PRINTING = ChromeProcessDescriptor_ProcessType_PROCESS_SERVICE_PRINTING;
-  static constexpr auto PROCESS_SERVICE_QUARANTINE = ChromeProcessDescriptor_ProcessType_PROCESS_SERVICE_QUARANTINE;
-  static constexpr auto PROCESS_SERVICE_CROS_LOCALSEARCH = ChromeProcessDescriptor_ProcessType_PROCESS_SERVICE_CROS_LOCALSEARCH;
-  static constexpr auto PROCESS_SERVICE_CROS_ASSISTANT_AUDIO_DECODER = ChromeProcessDescriptor_ProcessType_PROCESS_SERVICE_CROS_ASSISTANT_AUDIO_DECODER;
-  static constexpr auto PROCESS_SERVICE_FILEUTIL = ChromeProcessDescriptor_ProcessType_PROCESS_SERVICE_FILEUTIL;
-  static constexpr auto PROCESS_SERVICE_PRINTCOMPOSITOR = ChromeProcessDescriptor_ProcessType_PROCESS_SERVICE_PRINTCOMPOSITOR;
-  static constexpr auto PROCESS_SERVICE_PAINTPREVIEW = ChromeProcessDescriptor_ProcessType_PROCESS_SERVICE_PAINTPREVIEW;
-  static constexpr auto PROCESS_SERVICE_SPEECHRECOGNITION = ChromeProcessDescriptor_ProcessType_PROCESS_SERVICE_SPEECHRECOGNITION;
-  static constexpr auto PROCESS_SERVICE_XRDEVICE = ChromeProcessDescriptor_ProcessType_PROCESS_SERVICE_XRDEVICE;
-  static constexpr auto PROCESS_SERVICE_READICON = ChromeProcessDescriptor_ProcessType_PROCESS_SERVICE_READICON;
-  static constexpr auto PROCESS_SERVICE_LANGUAGEDETECTION = ChromeProcessDescriptor_ProcessType_PROCESS_SERVICE_LANGUAGEDETECTION;
-  static constexpr auto PROCESS_SERVICE_SHARING = ChromeProcessDescriptor_ProcessType_PROCESS_SERVICE_SHARING;
-  static constexpr auto PROCESS_SERVICE_MEDIAPARSER = ChromeProcessDescriptor_ProcessType_PROCESS_SERVICE_MEDIAPARSER;
-  static constexpr auto PROCESS_SERVICE_QRCODEGENERATOR = ChromeProcessDescriptor_ProcessType_PROCESS_SERVICE_QRCODEGENERATOR;
-  static constexpr auto PROCESS_SERVICE_PROFILEIMPORT = ChromeProcessDescriptor_ProcessType_PROCESS_SERVICE_PROFILEIMPORT;
-  static constexpr auto PROCESS_SERVICE_IME = ChromeProcessDescriptor_ProcessType_PROCESS_SERVICE_IME;
-  static constexpr auto PROCESS_SERVICE_RECORDING = ChromeProcessDescriptor_ProcessType_PROCESS_SERVICE_RECORDING;
-  static constexpr auto PROCESS_SERVICE_SHAPEDETECTION = ChromeProcessDescriptor_ProcessType_PROCESS_SERVICE_SHAPEDETECTION;
-  static constexpr auto ProcessType_MIN = ChromeProcessDescriptor_ProcessType_PROCESS_UNSPECIFIED;
-  static constexpr auto ProcessType_MAX = ChromeProcessDescriptor_ProcessType_PROCESS_SERVICE_SHAPEDETECTION;
-  enum FieldNumbers {
-    kProcessTypeFieldNumber = 1,
-    kProcessPriorityFieldNumber = 2,
-    kLegacySortIndexFieldNumber = 3,
-    kHostAppPackageNameFieldNumber = 4,
-    kCrashTraceIdFieldNumber = 5,
-  };
-
-  ChromeProcessDescriptor();
-  ~ChromeProcessDescriptor() override;
-  ChromeProcessDescriptor(ChromeProcessDescriptor&&) noexcept;
-  ChromeProcessDescriptor& operator=(ChromeProcessDescriptor&&);
-  ChromeProcessDescriptor(const ChromeProcessDescriptor&);
-  ChromeProcessDescriptor& operator=(const ChromeProcessDescriptor&);
-  bool operator==(const ChromeProcessDescriptor&) const;
-  bool operator!=(const ChromeProcessDescriptor& other) const { return !(*this == other); }
-
-  bool ParseFromArray(const void*, size_t) override;
-  std::string SerializeAsString() const override;
-  std::vector<uint8_t> SerializeAsArray() const override;
-  void Serialize(::protozero::Message*) const;
-
-  bool has_process_type() const { return _has_field_[1]; }
-  ChromeProcessDescriptor_ProcessType process_type() const { return process_type_; }
-  void set_process_type(ChromeProcessDescriptor_ProcessType value) { process_type_ = value; _has_field_.set(1); }
-
-  bool has_process_priority() const { return _has_field_[2]; }
-  int32_t process_priority() const { return process_priority_; }
-  void set_process_priority(int32_t value) { process_priority_ = value; _has_field_.set(2); }
-
-  bool has_legacy_sort_index() const { return _has_field_[3]; }
-  int32_t legacy_sort_index() const { return legacy_sort_index_; }
-  void set_legacy_sort_index(int32_t value) { legacy_sort_index_ = value; _has_field_.set(3); }
-
-  bool has_host_app_package_name() const { return _has_field_[4]; }
-  const std::string& host_app_package_name() const { return host_app_package_name_; }
-  void set_host_app_package_name(const std::string& value) { host_app_package_name_ = value; _has_field_.set(4); }
-
-  bool has_crash_trace_id() const { return _has_field_[5]; }
-  uint64_t crash_trace_id() const { return crash_trace_id_; }
-  void set_crash_trace_id(uint64_t value) { crash_trace_id_ = value; _has_field_.set(5); }
-
- private:
-  ChromeProcessDescriptor_ProcessType process_type_{};
-  int32_t process_priority_{};
-  int32_t legacy_sort_index_{};
-  std::string host_app_package_name_{};
-  uint64_t crash_trace_id_{};
-
-  // Allows to preserve unknown protobuf fields for compatibility
-  // with future versions of .proto files.
-  std::string unknown_fields_;
-
-  std::bitset<6> _has_field_{};
-};
-
-}  // namespace perfetto
-}  // namespace protos
-}  // namespace gen
-
-#endif  // PERFETTO_PROTOS_PROTOS_PERFETTO_TRACE_TRACK_EVENT_CHROME_PROCESS_DESCRIPTOR_PROTO_CPP_H_
-// gen_amalgamated begin header: gen/protos/perfetto/trace/track_event/chrome_renderer_scheduler_state.gen.h
-// DO NOT EDIT. Autogenerated by Perfetto cppgen_plugin
-#ifndef PERFETTO_PROTOS_PROTOS_PERFETTO_TRACE_TRACK_EVENT_CHROME_RENDERER_SCHEDULER_STATE_PROTO_CPP_H_
-#define PERFETTO_PROTOS_PROTOS_PERFETTO_TRACE_TRACK_EVENT_CHROME_RENDERER_SCHEDULER_STATE_PROTO_CPP_H_
-
-#include <stdint.h>
-#include <bitset>
-#include <vector>
-#include <string>
-#include <type_traits>
-
-// gen_amalgamated expanded: #include "perfetto/protozero/cpp_message_obj.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/copyable_ptr.h"
-// gen_amalgamated expanded: #include "perfetto/base/export.h"
-
-namespace perfetto {
-namespace protos {
-namespace gen {
-class ChromeRendererSchedulerState;
-enum ChromeRAILMode : int;
-}  // namespace perfetto
-}  // namespace protos
-}  // namespace gen
-
-namespace protozero {
-class Message;
-}  // namespace protozero
-
-namespace perfetto {
-namespace protos {
-namespace gen {
-enum ChromeRAILMode : int {
-  RAIL_MODE_NONE = 0,
-  RAIL_MODE_RESPONSE = 1,
-  RAIL_MODE_ANIMATION = 2,
-  RAIL_MODE_IDLE = 3,
-  RAIL_MODE_LOAD = 4,
-};
-
-class PERFETTO_EXPORT ChromeRendererSchedulerState : public ::protozero::CppMessageObj {
- public:
-  enum FieldNumbers {
-    kRailModeFieldNumber = 1,
-  };
-
-  ChromeRendererSchedulerState();
-  ~ChromeRendererSchedulerState() override;
-  ChromeRendererSchedulerState(ChromeRendererSchedulerState&&) noexcept;
-  ChromeRendererSchedulerState& operator=(ChromeRendererSchedulerState&&);
-  ChromeRendererSchedulerState(const ChromeRendererSchedulerState&);
-  ChromeRendererSchedulerState& operator=(const ChromeRendererSchedulerState&);
-  bool operator==(const ChromeRendererSchedulerState&) const;
-  bool operator!=(const ChromeRendererSchedulerState& other) const { return !(*this == other); }
-
-  bool ParseFromArray(const void*, size_t) override;
-  std::string SerializeAsString() const override;
-  std::vector<uint8_t> SerializeAsArray() const override;
-  void Serialize(::protozero::Message*) const;
-
-  bool has_rail_mode() const { return _has_field_[1]; }
-  ChromeRAILMode rail_mode() const { return rail_mode_; }
-  void set_rail_mode(ChromeRAILMode value) { rail_mode_ = value; _has_field_.set(1); }
-
- private:
-  ChromeRAILMode rail_mode_{};
-
-  // Allows to preserve unknown protobuf fields for compatibility
-  // with future versions of .proto files.
-  std::string unknown_fields_;
-
-  std::bitset<2> _has_field_{};
-};
-
-}  // namespace perfetto
-}  // namespace protos
-}  // namespace gen
-
-#endif  // PERFETTO_PROTOS_PROTOS_PERFETTO_TRACE_TRACK_EVENT_CHROME_RENDERER_SCHEDULER_STATE_PROTO_CPP_H_
-// gen_amalgamated begin header: gen/protos/perfetto/trace/track_event/chrome_thread_descriptor.gen.h
-// DO NOT EDIT. Autogenerated by Perfetto cppgen_plugin
-#ifndef PERFETTO_PROTOS_PROTOS_PERFETTO_TRACE_TRACK_EVENT_CHROME_THREAD_DESCRIPTOR_PROTO_CPP_H_
-#define PERFETTO_PROTOS_PROTOS_PERFETTO_TRACE_TRACK_EVENT_CHROME_THREAD_DESCRIPTOR_PROTO_CPP_H_
-
-#include <stdint.h>
-#include <bitset>
-#include <vector>
-#include <string>
-#include <type_traits>
-
-// gen_amalgamated expanded: #include "perfetto/protozero/cpp_message_obj.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/copyable_ptr.h"
-// gen_amalgamated expanded: #include "perfetto/base/export.h"
-
-namespace perfetto {
-namespace protos {
-namespace gen {
-class ChromeThreadDescriptor;
-enum ChromeThreadDescriptor_ThreadType : int;
-}  // namespace perfetto
-}  // namespace protos
-}  // namespace gen
-
-namespace protozero {
-class Message;
-}  // namespace protozero
-
-namespace perfetto {
-namespace protos {
-namespace gen {
-enum ChromeThreadDescriptor_ThreadType : int {
-  ChromeThreadDescriptor_ThreadType_THREAD_UNSPECIFIED = 0,
-  ChromeThreadDescriptor_ThreadType_THREAD_MAIN = 1,
-  ChromeThreadDescriptor_ThreadType_THREAD_IO = 2,
-  ChromeThreadDescriptor_ThreadType_THREAD_POOL_BG_WORKER = 3,
-  ChromeThreadDescriptor_ThreadType_THREAD_POOL_FG_WORKER = 4,
-  ChromeThreadDescriptor_ThreadType_THREAD_POOL_FG_BLOCKING = 5,
-  ChromeThreadDescriptor_ThreadType_THREAD_POOL_BG_BLOCKING = 6,
-  ChromeThreadDescriptor_ThreadType_THREAD_POOL_SERVICE = 7,
-  ChromeThreadDescriptor_ThreadType_THREAD_COMPOSITOR = 8,
-  ChromeThreadDescriptor_ThreadType_THREAD_VIZ_COMPOSITOR = 9,
-  ChromeThreadDescriptor_ThreadType_THREAD_COMPOSITOR_WORKER = 10,
-  ChromeThreadDescriptor_ThreadType_THREAD_SERVICE_WORKER = 11,
-  ChromeThreadDescriptor_ThreadType_THREAD_NETWORK_SERVICE = 12,
-  ChromeThreadDescriptor_ThreadType_THREAD_CHILD_IO = 13,
-  ChromeThreadDescriptor_ThreadType_THREAD_BROWSER_IO = 14,
-  ChromeThreadDescriptor_ThreadType_THREAD_BROWSER_MAIN = 15,
-  ChromeThreadDescriptor_ThreadType_THREAD_RENDERER_MAIN = 16,
-  ChromeThreadDescriptor_ThreadType_THREAD_UTILITY_MAIN = 17,
-  ChromeThreadDescriptor_ThreadType_THREAD_GPU_MAIN = 18,
-  ChromeThreadDescriptor_ThreadType_THREAD_CACHE_BLOCKFILE = 19,
-  ChromeThreadDescriptor_ThreadType_THREAD_MEDIA = 20,
-  ChromeThreadDescriptor_ThreadType_THREAD_AUDIO_OUTPUTDEVICE = 21,
-  ChromeThreadDescriptor_ThreadType_THREAD_AUDIO_INPUTDEVICE = 22,
-  ChromeThreadDescriptor_ThreadType_THREAD_GPU_MEMORY = 23,
-  ChromeThreadDescriptor_ThreadType_THREAD_GPU_VSYNC = 24,
-  ChromeThreadDescriptor_ThreadType_THREAD_DXA_VIDEODECODER = 25,
-  ChromeThreadDescriptor_ThreadType_THREAD_BROWSER_WATCHDOG = 26,
-  ChromeThreadDescriptor_ThreadType_THREAD_WEBRTC_NETWORK = 27,
-  ChromeThreadDescriptor_ThreadType_THREAD_WINDOW_OWNER = 28,
-  ChromeThreadDescriptor_ThreadType_THREAD_WEBRTC_SIGNALING = 29,
-  ChromeThreadDescriptor_ThreadType_THREAD_WEBRTC_WORKER = 30,
-  ChromeThreadDescriptor_ThreadType_THREAD_PPAPI_MAIN = 31,
-  ChromeThreadDescriptor_ThreadType_THREAD_GPU_WATCHDOG = 32,
-  ChromeThreadDescriptor_ThreadType_THREAD_SWAPPER = 33,
-  ChromeThreadDescriptor_ThreadType_THREAD_GAMEPAD_POLLING = 34,
-  ChromeThreadDescriptor_ThreadType_THREAD_WEBCRYPTO = 35,
-  ChromeThreadDescriptor_ThreadType_THREAD_DATABASE = 36,
-  ChromeThreadDescriptor_ThreadType_THREAD_PROXYRESOLVER = 37,
-  ChromeThreadDescriptor_ThreadType_THREAD_DEVTOOLSADB = 38,
-  ChromeThreadDescriptor_ThreadType_THREAD_NETWORKCONFIGWATCHER = 39,
-  ChromeThreadDescriptor_ThreadType_THREAD_WASAPI_RENDER = 40,
-  ChromeThreadDescriptor_ThreadType_THREAD_MEMORY_INFRA = 50,
-  ChromeThreadDescriptor_ThreadType_THREAD_SAMPLING_PROFILER = 51,
-};
-
-class PERFETTO_EXPORT ChromeThreadDescriptor : public ::protozero::CppMessageObj {
- public:
-  using ThreadType = ChromeThreadDescriptor_ThreadType;
-  static constexpr auto THREAD_UNSPECIFIED = ChromeThreadDescriptor_ThreadType_THREAD_UNSPECIFIED;
-  static constexpr auto THREAD_MAIN = ChromeThreadDescriptor_ThreadType_THREAD_MAIN;
-  static constexpr auto THREAD_IO = ChromeThreadDescriptor_ThreadType_THREAD_IO;
-  static constexpr auto THREAD_POOL_BG_WORKER = ChromeThreadDescriptor_ThreadType_THREAD_POOL_BG_WORKER;
-  static constexpr auto THREAD_POOL_FG_WORKER = ChromeThreadDescriptor_ThreadType_THREAD_POOL_FG_WORKER;
-  static constexpr auto THREAD_POOL_FG_BLOCKING = ChromeThreadDescriptor_ThreadType_THREAD_POOL_FG_BLOCKING;
-  static constexpr auto THREAD_POOL_BG_BLOCKING = ChromeThreadDescriptor_ThreadType_THREAD_POOL_BG_BLOCKING;
-  static constexpr auto THREAD_POOL_SERVICE = ChromeThreadDescriptor_ThreadType_THREAD_POOL_SERVICE;
-  static constexpr auto THREAD_COMPOSITOR = ChromeThreadDescriptor_ThreadType_THREAD_COMPOSITOR;
-  static constexpr auto THREAD_VIZ_COMPOSITOR = ChromeThreadDescriptor_ThreadType_THREAD_VIZ_COMPOSITOR;
-  static constexpr auto THREAD_COMPOSITOR_WORKER = ChromeThreadDescriptor_ThreadType_THREAD_COMPOSITOR_WORKER;
-  static constexpr auto THREAD_SERVICE_WORKER = ChromeThreadDescriptor_ThreadType_THREAD_SERVICE_WORKER;
-  static constexpr auto THREAD_NETWORK_SERVICE = ChromeThreadDescriptor_ThreadType_THREAD_NETWORK_SERVICE;
-  static constexpr auto THREAD_CHILD_IO = ChromeThreadDescriptor_ThreadType_THREAD_CHILD_IO;
-  static constexpr auto THREAD_BROWSER_IO = ChromeThreadDescriptor_ThreadType_THREAD_BROWSER_IO;
-  static constexpr auto THREAD_BROWSER_MAIN = ChromeThreadDescriptor_ThreadType_THREAD_BROWSER_MAIN;
-  static constexpr auto THREAD_RENDERER_MAIN = ChromeThreadDescriptor_ThreadType_THREAD_RENDERER_MAIN;
-  static constexpr auto THREAD_UTILITY_MAIN = ChromeThreadDescriptor_ThreadType_THREAD_UTILITY_MAIN;
-  static constexpr auto THREAD_GPU_MAIN = ChromeThreadDescriptor_ThreadType_THREAD_GPU_MAIN;
-  static constexpr auto THREAD_CACHE_BLOCKFILE = ChromeThreadDescriptor_ThreadType_THREAD_CACHE_BLOCKFILE;
-  static constexpr auto THREAD_MEDIA = ChromeThreadDescriptor_ThreadType_THREAD_MEDIA;
-  static constexpr auto THREAD_AUDIO_OUTPUTDEVICE = ChromeThreadDescriptor_ThreadType_THREAD_AUDIO_OUTPUTDEVICE;
-  static constexpr auto THREAD_AUDIO_INPUTDEVICE = ChromeThreadDescriptor_ThreadType_THREAD_AUDIO_INPUTDEVICE;
-  static constexpr auto THREAD_GPU_MEMORY = ChromeThreadDescriptor_ThreadType_THREAD_GPU_MEMORY;
-  static constexpr auto THREAD_GPU_VSYNC = ChromeThreadDescriptor_ThreadType_THREAD_GPU_VSYNC;
-  static constexpr auto THREAD_DXA_VIDEODECODER = ChromeThreadDescriptor_ThreadType_THREAD_DXA_VIDEODECODER;
-  static constexpr auto THREAD_BROWSER_WATCHDOG = ChromeThreadDescriptor_ThreadType_THREAD_BROWSER_WATCHDOG;
-  static constexpr auto THREAD_WEBRTC_NETWORK = ChromeThreadDescriptor_ThreadType_THREAD_WEBRTC_NETWORK;
-  static constexpr auto THREAD_WINDOW_OWNER = ChromeThreadDescriptor_ThreadType_THREAD_WINDOW_OWNER;
-  static constexpr auto THREAD_WEBRTC_SIGNALING = ChromeThreadDescriptor_ThreadType_THREAD_WEBRTC_SIGNALING;
-  static constexpr auto THREAD_WEBRTC_WORKER = ChromeThreadDescriptor_ThreadType_THREAD_WEBRTC_WORKER;
-  static constexpr auto THREAD_PPAPI_MAIN = ChromeThreadDescriptor_ThreadType_THREAD_PPAPI_MAIN;
-  static constexpr auto THREAD_GPU_WATCHDOG = ChromeThreadDescriptor_ThreadType_THREAD_GPU_WATCHDOG;
-  static constexpr auto THREAD_SWAPPER = ChromeThreadDescriptor_ThreadType_THREAD_SWAPPER;
-  static constexpr auto THREAD_GAMEPAD_POLLING = ChromeThreadDescriptor_ThreadType_THREAD_GAMEPAD_POLLING;
-  static constexpr auto THREAD_WEBCRYPTO = ChromeThreadDescriptor_ThreadType_THREAD_WEBCRYPTO;
-  static constexpr auto THREAD_DATABASE = ChromeThreadDescriptor_ThreadType_THREAD_DATABASE;
-  static constexpr auto THREAD_PROXYRESOLVER = ChromeThreadDescriptor_ThreadType_THREAD_PROXYRESOLVER;
-  static constexpr auto THREAD_DEVTOOLSADB = ChromeThreadDescriptor_ThreadType_THREAD_DEVTOOLSADB;
-  static constexpr auto THREAD_NETWORKCONFIGWATCHER = ChromeThreadDescriptor_ThreadType_THREAD_NETWORKCONFIGWATCHER;
-  static constexpr auto THREAD_WASAPI_RENDER = ChromeThreadDescriptor_ThreadType_THREAD_WASAPI_RENDER;
-  static constexpr auto THREAD_MEMORY_INFRA = ChromeThreadDescriptor_ThreadType_THREAD_MEMORY_INFRA;
-  static constexpr auto THREAD_SAMPLING_PROFILER = ChromeThreadDescriptor_ThreadType_THREAD_SAMPLING_PROFILER;
-  static constexpr auto ThreadType_MIN = ChromeThreadDescriptor_ThreadType_THREAD_UNSPECIFIED;
-  static constexpr auto ThreadType_MAX = ChromeThreadDescriptor_ThreadType_THREAD_SAMPLING_PROFILER;
-  enum FieldNumbers {
-    kThreadTypeFieldNumber = 1,
-    kLegacySortIndexFieldNumber = 2,
-  };
-
-  ChromeThreadDescriptor();
-  ~ChromeThreadDescriptor() override;
-  ChromeThreadDescriptor(ChromeThreadDescriptor&&) noexcept;
-  ChromeThreadDescriptor& operator=(ChromeThreadDescriptor&&);
-  ChromeThreadDescriptor(const ChromeThreadDescriptor&);
-  ChromeThreadDescriptor& operator=(const ChromeThreadDescriptor&);
-  bool operator==(const ChromeThreadDescriptor&) const;
-  bool operator!=(const ChromeThreadDescriptor& other) const { return !(*this == other); }
-
-  bool ParseFromArray(const void*, size_t) override;
-  std::string SerializeAsString() const override;
-  std::vector<uint8_t> SerializeAsArray() const override;
-  void Serialize(::protozero::Message*) const;
-
-  bool has_thread_type() const { return _has_field_[1]; }
-  ChromeThreadDescriptor_ThreadType thread_type() const { return thread_type_; }
-  void set_thread_type(ChromeThreadDescriptor_ThreadType value) { thread_type_ = value; _has_field_.set(1); }
-
-  bool has_legacy_sort_index() const { return _has_field_[2]; }
-  int32_t legacy_sort_index() const { return legacy_sort_index_; }
-  void set_legacy_sort_index(int32_t value) { legacy_sort_index_ = value; _has_field_.set(2); }
-
- private:
-  ChromeThreadDescriptor_ThreadType thread_type_{};
-  int32_t legacy_sort_index_{};
-
-  // Allows to preserve unknown protobuf fields for compatibility
-  // with future versions of .proto files.
-  std::string unknown_fields_;
-
-  std::bitset<3> _has_field_{};
-};
-
-}  // namespace perfetto
-}  // namespace protos
-}  // namespace gen
-
-#endif  // PERFETTO_PROTOS_PROTOS_PERFETTO_TRACE_TRACK_EVENT_CHROME_THREAD_DESCRIPTOR_PROTO_CPP_H_
-// gen_amalgamated begin header: gen/protos/perfetto/trace/track_event/chrome_user_event.gen.h
-// DO NOT EDIT. Autogenerated by Perfetto cppgen_plugin
-#ifndef PERFETTO_PROTOS_PROTOS_PERFETTO_TRACE_TRACK_EVENT_CHROME_USER_EVENT_PROTO_CPP_H_
-#define PERFETTO_PROTOS_PROTOS_PERFETTO_TRACE_TRACK_EVENT_CHROME_USER_EVENT_PROTO_CPP_H_
-
-#include <stdint.h>
-#include <bitset>
-#include <vector>
-#include <string>
-#include <type_traits>
-
-// gen_amalgamated expanded: #include "perfetto/protozero/cpp_message_obj.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/copyable_ptr.h"
-// gen_amalgamated expanded: #include "perfetto/base/export.h"
-
-namespace perfetto {
-namespace protos {
-namespace gen {
-class ChromeUserEvent;
-}  // namespace perfetto
-}  // namespace protos
-}  // namespace gen
-
-namespace protozero {
-class Message;
-}  // namespace protozero
-
-namespace perfetto {
-namespace protos {
-namespace gen {
-
-class PERFETTO_EXPORT ChromeUserEvent : public ::protozero::CppMessageObj {
- public:
-  enum FieldNumbers {
-    kActionFieldNumber = 1,
-    kActionHashFieldNumber = 2,
-  };
-
-  ChromeUserEvent();
-  ~ChromeUserEvent() override;
-  ChromeUserEvent(ChromeUserEvent&&) noexcept;
-  ChromeUserEvent& operator=(ChromeUserEvent&&);
-  ChromeUserEvent(const ChromeUserEvent&);
-  ChromeUserEvent& operator=(const ChromeUserEvent&);
-  bool operator==(const ChromeUserEvent&) const;
-  bool operator!=(const ChromeUserEvent& other) const { return !(*this == other); }
-
-  bool ParseFromArray(const void*, size_t) override;
-  std::string SerializeAsString() const override;
-  std::vector<uint8_t> SerializeAsArray() const override;
-  void Serialize(::protozero::Message*) const;
-
-  bool has_action() const { return _has_field_[1]; }
-  const std::string& action() const { return action_; }
-  void set_action(const std::string& value) { action_ = value; _has_field_.set(1); }
-
-  bool has_action_hash() const { return _has_field_[2]; }
-  uint64_t action_hash() const { return action_hash_; }
-  void set_action_hash(uint64_t value) { action_hash_ = value; _has_field_.set(2); }
-
- private:
-  std::string action_{};
-  uint64_t action_hash_{};
-
-  // Allows to preserve unknown protobuf fields for compatibility
-  // with future versions of .proto files.
-  std::string unknown_fields_;
-
-  std::bitset<3> _has_field_{};
-};
-
-}  // namespace perfetto
-}  // namespace protos
-}  // namespace gen
-
-#endif  // PERFETTO_PROTOS_PROTOS_PERFETTO_TRACE_TRACK_EVENT_CHROME_USER_EVENT_PROTO_CPP_H_
-// gen_amalgamated begin header: gen/protos/perfetto/trace/track_event/chrome_window_handle_event_info.gen.h
-// DO NOT EDIT. Autogenerated by Perfetto cppgen_plugin
-#ifndef PERFETTO_PROTOS_PROTOS_PERFETTO_TRACE_TRACK_EVENT_CHROME_WINDOW_HANDLE_EVENT_INFO_PROTO_CPP_H_
-#define PERFETTO_PROTOS_PROTOS_PERFETTO_TRACE_TRACK_EVENT_CHROME_WINDOW_HANDLE_EVENT_INFO_PROTO_CPP_H_
-
-#include <stdint.h>
-#include <bitset>
-#include <vector>
-#include <string>
-#include <type_traits>
-
-// gen_amalgamated expanded: #include "perfetto/protozero/cpp_message_obj.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/copyable_ptr.h"
-// gen_amalgamated expanded: #include "perfetto/base/export.h"
-
-namespace perfetto {
-namespace protos {
-namespace gen {
-class ChromeWindowHandleEventInfo;
-}  // namespace perfetto
-}  // namespace protos
-}  // namespace gen
-
-namespace protozero {
-class Message;
-}  // namespace protozero
-
-namespace perfetto {
-namespace protos {
-namespace gen {
-
-class PERFETTO_EXPORT ChromeWindowHandleEventInfo : public ::protozero::CppMessageObj {
- public:
-  enum FieldNumbers {
-    kDpiFieldNumber = 1,
-    kMessageIdFieldNumber = 2,
-    kHwndPtrFieldNumber = 3,
-  };
-
-  ChromeWindowHandleEventInfo();
-  ~ChromeWindowHandleEventInfo() override;
-  ChromeWindowHandleEventInfo(ChromeWindowHandleEventInfo&&) noexcept;
-  ChromeWindowHandleEventInfo& operator=(ChromeWindowHandleEventInfo&&);
-  ChromeWindowHandleEventInfo(const ChromeWindowHandleEventInfo&);
-  ChromeWindowHandleEventInfo& operator=(const ChromeWindowHandleEventInfo&);
-  bool operator==(const ChromeWindowHandleEventInfo&) const;
-  bool operator!=(const ChromeWindowHandleEventInfo& other) const { return !(*this == other); }
-
-  bool ParseFromArray(const void*, size_t) override;
-  std::string SerializeAsString() const override;
-  std::vector<uint8_t> SerializeAsArray() const override;
-  void Serialize(::protozero::Message*) const;
-
-  bool has_dpi() const { return _has_field_[1]; }
-  uint32_t dpi() const { return dpi_; }
-  void set_dpi(uint32_t value) { dpi_ = value; _has_field_.set(1); }
-
-  bool has_message_id() const { return _has_field_[2]; }
-  uint32_t message_id() const { return message_id_; }
-  void set_message_id(uint32_t value) { message_id_ = value; _has_field_.set(2); }
-
-  bool has_hwnd_ptr() const { return _has_field_[3]; }
-  uint64_t hwnd_ptr() const { return hwnd_ptr_; }
-  void set_hwnd_ptr(uint64_t value) { hwnd_ptr_ = value; _has_field_.set(3); }
-
- private:
-  uint32_t dpi_{};
-  uint32_t message_id_{};
-  uint64_t hwnd_ptr_{};
-
-  // Allows to preserve unknown protobuf fields for compatibility
-  // with future versions of .proto files.
-  std::string unknown_fields_;
-
-  std::bitset<4> _has_field_{};
-};
-
-}  // namespace perfetto
-}  // namespace protos
-}  // namespace gen
-
-#endif  // PERFETTO_PROTOS_PROTOS_PERFETTO_TRACE_TRACK_EVENT_CHROME_WINDOW_HANDLE_EVENT_INFO_PROTO_CPP_H_
-// gen_amalgamated begin header: gen/protos/perfetto/trace/track_event/counter_descriptor.gen.h
-// DO NOT EDIT. Autogenerated by Perfetto cppgen_plugin
-#ifndef PERFETTO_PROTOS_PROTOS_PERFETTO_TRACE_TRACK_EVENT_COUNTER_DESCRIPTOR_PROTO_CPP_H_
-#define PERFETTO_PROTOS_PROTOS_PERFETTO_TRACE_TRACK_EVENT_COUNTER_DESCRIPTOR_PROTO_CPP_H_
-
-#include <stdint.h>
-#include <bitset>
-#include <vector>
-#include <string>
-#include <type_traits>
-
-// gen_amalgamated expanded: #include "perfetto/protozero/cpp_message_obj.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/copyable_ptr.h"
-// gen_amalgamated expanded: #include "perfetto/base/export.h"
-
-namespace perfetto {
-namespace protos {
-namespace gen {
-class CounterDescriptor;
-enum CounterDescriptor_BuiltinCounterType : int;
-enum CounterDescriptor_Unit : int;
-}  // namespace perfetto
-}  // namespace protos
-}  // namespace gen
-
-namespace protozero {
-class Message;
-}  // namespace protozero
-
-namespace perfetto {
-namespace protos {
-namespace gen {
-enum CounterDescriptor_BuiltinCounterType : int {
-  CounterDescriptor_BuiltinCounterType_COUNTER_UNSPECIFIED = 0,
-  CounterDescriptor_BuiltinCounterType_COUNTER_THREAD_TIME_NS = 1,
-  CounterDescriptor_BuiltinCounterType_COUNTER_THREAD_INSTRUCTION_COUNT = 2,
-};
-enum CounterDescriptor_Unit : int {
-  CounterDescriptor_Unit_UNIT_UNSPECIFIED = 0,
-  CounterDescriptor_Unit_UNIT_TIME_NS = 1,
-  CounterDescriptor_Unit_UNIT_COUNT = 2,
-  CounterDescriptor_Unit_UNIT_SIZE_BYTES = 3,
-};
-
-class PERFETTO_EXPORT CounterDescriptor : public ::protozero::CppMessageObj {
- public:
-  using BuiltinCounterType = CounterDescriptor_BuiltinCounterType;
-  static constexpr auto COUNTER_UNSPECIFIED = CounterDescriptor_BuiltinCounterType_COUNTER_UNSPECIFIED;
-  static constexpr auto COUNTER_THREAD_TIME_NS = CounterDescriptor_BuiltinCounterType_COUNTER_THREAD_TIME_NS;
-  static constexpr auto COUNTER_THREAD_INSTRUCTION_COUNT = CounterDescriptor_BuiltinCounterType_COUNTER_THREAD_INSTRUCTION_COUNT;
-  static constexpr auto BuiltinCounterType_MIN = CounterDescriptor_BuiltinCounterType_COUNTER_UNSPECIFIED;
-  static constexpr auto BuiltinCounterType_MAX = CounterDescriptor_BuiltinCounterType_COUNTER_THREAD_INSTRUCTION_COUNT;
-  using Unit = CounterDescriptor_Unit;
-  static constexpr auto UNIT_UNSPECIFIED = CounterDescriptor_Unit_UNIT_UNSPECIFIED;
-  static constexpr auto UNIT_TIME_NS = CounterDescriptor_Unit_UNIT_TIME_NS;
-  static constexpr auto UNIT_COUNT = CounterDescriptor_Unit_UNIT_COUNT;
-  static constexpr auto UNIT_SIZE_BYTES = CounterDescriptor_Unit_UNIT_SIZE_BYTES;
-  static constexpr auto Unit_MIN = CounterDescriptor_Unit_UNIT_UNSPECIFIED;
-  static constexpr auto Unit_MAX = CounterDescriptor_Unit_UNIT_SIZE_BYTES;
-  enum FieldNumbers {
-    kTypeFieldNumber = 1,
-    kCategoriesFieldNumber = 2,
-    kUnitFieldNumber = 3,
-    kUnitNameFieldNumber = 6,
-    kUnitMultiplierFieldNumber = 4,
-    kIsIncrementalFieldNumber = 5,
-  };
-
-  CounterDescriptor();
-  ~CounterDescriptor() override;
-  CounterDescriptor(CounterDescriptor&&) noexcept;
-  CounterDescriptor& operator=(CounterDescriptor&&);
-  CounterDescriptor(const CounterDescriptor&);
-  CounterDescriptor& operator=(const CounterDescriptor&);
-  bool operator==(const CounterDescriptor&) const;
-  bool operator!=(const CounterDescriptor& other) const { return !(*this == other); }
-
-  bool ParseFromArray(const void*, size_t) override;
-  std::string SerializeAsString() const override;
-  std::vector<uint8_t> SerializeAsArray() const override;
-  void Serialize(::protozero::Message*) const;
-
-  bool has_type() const { return _has_field_[1]; }
-  CounterDescriptor_BuiltinCounterType type() const { return type_; }
-  void set_type(CounterDescriptor_BuiltinCounterType value) { type_ = value; _has_field_.set(1); }
-
-  const std::vector<std::string>& categories() const { return categories_; }
-  std::vector<std::string>* mutable_categories() { return &categories_; }
-  int categories_size() const { return static_cast<int>(categories_.size()); }
-  void clear_categories() { categories_.clear(); }
-  void add_categories(std::string value) { categories_.emplace_back(value); }
-  std::string* add_categories() { categories_.emplace_back(); return &categories_.back(); }
-
-  bool has_unit() const { return _has_field_[3]; }
-  CounterDescriptor_Unit unit() const { return unit_; }
-  void set_unit(CounterDescriptor_Unit value) { unit_ = value; _has_field_.set(3); }
-
-  bool has_unit_name() const { return _has_field_[6]; }
-  const std::string& unit_name() const { return unit_name_; }
-  void set_unit_name(const std::string& value) { unit_name_ = value; _has_field_.set(6); }
-
-  bool has_unit_multiplier() const { return _has_field_[4]; }
-  int64_t unit_multiplier() const { return unit_multiplier_; }
-  void set_unit_multiplier(int64_t value) { unit_multiplier_ = value; _has_field_.set(4); }
-
-  bool has_is_incremental() const { return _has_field_[5]; }
-  bool is_incremental() const { return is_incremental_; }
-  void set_is_incremental(bool value) { is_incremental_ = value; _has_field_.set(5); }
-
- private:
-  CounterDescriptor_BuiltinCounterType type_{};
-  std::vector<std::string> categories_;
-  CounterDescriptor_Unit unit_{};
-  std::string unit_name_{};
-  int64_t unit_multiplier_{};
-  bool is_incremental_{};
-
-  // Allows to preserve unknown protobuf fields for compatibility
-  // with future versions of .proto files.
-  std::string unknown_fields_;
-
-  std::bitset<7> _has_field_{};
-};
-
-}  // namespace perfetto
-}  // namespace protos
-}  // namespace gen
-
-#endif  // PERFETTO_PROTOS_PROTOS_PERFETTO_TRACE_TRACK_EVENT_COUNTER_DESCRIPTOR_PROTO_CPP_H_
-// gen_amalgamated begin header: gen/protos/perfetto/trace/track_event/debug_annotation.gen.h
-// DO NOT EDIT. Autogenerated by Perfetto cppgen_plugin
-#ifndef PERFETTO_PROTOS_PROTOS_PERFETTO_TRACE_TRACK_EVENT_DEBUG_ANNOTATION_PROTO_CPP_H_
-#define PERFETTO_PROTOS_PROTOS_PERFETTO_TRACE_TRACK_EVENT_DEBUG_ANNOTATION_PROTO_CPP_H_
-
-#include <stdint.h>
-#include <bitset>
-#include <vector>
-#include <string>
-#include <type_traits>
-
-// gen_amalgamated expanded: #include "perfetto/protozero/cpp_message_obj.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/copyable_ptr.h"
-// gen_amalgamated expanded: #include "perfetto/base/export.h"
-
-namespace perfetto {
-namespace protos {
-namespace gen {
-class DebugAnnotationName;
-class DebugAnnotation;
-class DebugAnnotation_NestedValue;
-enum DebugAnnotation_NestedValue_NestedType : int;
-}  // namespace perfetto
-}  // namespace protos
-}  // namespace gen
-
-namespace protozero {
-class Message;
-}  // namespace protozero
-
-namespace perfetto {
-namespace protos {
-namespace gen {
-enum DebugAnnotation_NestedValue_NestedType : int {
-  DebugAnnotation_NestedValue_NestedType_UNSPECIFIED = 0,
-  DebugAnnotation_NestedValue_NestedType_DICT = 1,
-  DebugAnnotation_NestedValue_NestedType_ARRAY = 2,
-};
-
-class PERFETTO_EXPORT DebugAnnotationName : public ::protozero::CppMessageObj {
- public:
-  enum FieldNumbers {
-    kIidFieldNumber = 1,
-    kNameFieldNumber = 2,
-  };
-
-  DebugAnnotationName();
-  ~DebugAnnotationName() override;
-  DebugAnnotationName(DebugAnnotationName&&) noexcept;
-  DebugAnnotationName& operator=(DebugAnnotationName&&);
-  DebugAnnotationName(const DebugAnnotationName&);
-  DebugAnnotationName& operator=(const DebugAnnotationName&);
-  bool operator==(const DebugAnnotationName&) const;
-  bool operator!=(const DebugAnnotationName& other) const { return !(*this == other); }
-
-  bool ParseFromArray(const void*, size_t) override;
-  std::string SerializeAsString() const override;
-  std::vector<uint8_t> SerializeAsArray() const override;
-  void Serialize(::protozero::Message*) const;
-
-  bool has_iid() const { return _has_field_[1]; }
-  uint64_t iid() const { return iid_; }
-  void set_iid(uint64_t value) { iid_ = value; _has_field_.set(1); }
-
-  bool has_name() const { return _has_field_[2]; }
-  const std::string& name() const { return name_; }
-  void set_name(const std::string& value) { name_ = value; _has_field_.set(2); }
-
- private:
-  uint64_t iid_{};
-  std::string name_{};
-
-  // Allows to preserve unknown protobuf fields for compatibility
-  // with future versions of .proto files.
-  std::string unknown_fields_;
-
-  std::bitset<3> _has_field_{};
-};
-
-
-class PERFETTO_EXPORT DebugAnnotation : public ::protozero::CppMessageObj {
- public:
-  using NestedValue = DebugAnnotation_NestedValue;
-  enum FieldNumbers {
-    kNameIidFieldNumber = 1,
-    kNameFieldNumber = 10,
-    kBoolValueFieldNumber = 2,
-    kUintValueFieldNumber = 3,
-    kIntValueFieldNumber = 4,
-    kDoubleValueFieldNumber = 5,
-    kStringValueFieldNumber = 6,
-    kPointerValueFieldNumber = 7,
-    kNestedValueFieldNumber = 8,
-    kLegacyJsonValueFieldNumber = 9,
-    kDictEntriesFieldNumber = 11,
-    kArrayValuesFieldNumber = 12,
-  };
-
-  DebugAnnotation();
-  ~DebugAnnotation() override;
-  DebugAnnotation(DebugAnnotation&&) noexcept;
-  DebugAnnotation& operator=(DebugAnnotation&&);
-  DebugAnnotation(const DebugAnnotation&);
-  DebugAnnotation& operator=(const DebugAnnotation&);
-  bool operator==(const DebugAnnotation&) const;
-  bool operator!=(const DebugAnnotation& other) const { return !(*this == other); }
-
-  bool ParseFromArray(const void*, size_t) override;
-  std::string SerializeAsString() const override;
-  std::vector<uint8_t> SerializeAsArray() const override;
-  void Serialize(::protozero::Message*) const;
-
-  bool has_name_iid() const { return _has_field_[1]; }
-  uint64_t name_iid() const { return name_iid_; }
-  void set_name_iid(uint64_t value) { name_iid_ = value; _has_field_.set(1); }
-
-  bool has_name() const { return _has_field_[10]; }
-  const std::string& name() const { return name_; }
-  void set_name(const std::string& value) { name_ = value; _has_field_.set(10); }
-
-  bool has_bool_value() const { return _has_field_[2]; }
-  bool bool_value() const { return bool_value_; }
-  void set_bool_value(bool value) { bool_value_ = value; _has_field_.set(2); }
-
-  bool has_uint_value() const { return _has_field_[3]; }
-  uint64_t uint_value() const { return uint_value_; }
-  void set_uint_value(uint64_t value) { uint_value_ = value; _has_field_.set(3); }
-
-  bool has_int_value() const { return _has_field_[4]; }
-  int64_t int_value() const { return int_value_; }
-  void set_int_value(int64_t value) { int_value_ = value; _has_field_.set(4); }
-
-  bool has_double_value() const { return _has_field_[5]; }
-  double double_value() const { return double_value_; }
-  void set_double_value(double value) { double_value_ = value; _has_field_.set(5); }
-
-  bool has_string_value() const { return _has_field_[6]; }
-  const std::string& string_value() const { return string_value_; }
-  void set_string_value(const std::string& value) { string_value_ = value; _has_field_.set(6); }
-
-  bool has_pointer_value() const { return _has_field_[7]; }
-  uint64_t pointer_value() const { return pointer_value_; }
-  void set_pointer_value(uint64_t value) { pointer_value_ = value; _has_field_.set(7); }
-
-  bool has_nested_value() const { return _has_field_[8]; }
-  const DebugAnnotation_NestedValue& nested_value() const { return *nested_value_; }
-  DebugAnnotation_NestedValue* mutable_nested_value() { _has_field_.set(8); return nested_value_.get(); }
-
-  bool has_legacy_json_value() const { return _has_field_[9]; }
-  const std::string& legacy_json_value() const { return legacy_json_value_; }
-  void set_legacy_json_value(const std::string& value) { legacy_json_value_ = value; _has_field_.set(9); }
-
-  const std::vector<DebugAnnotation>& dict_entries() const { return dict_entries_; }
-  std::vector<DebugAnnotation>* mutable_dict_entries() { return &dict_entries_; }
-  int dict_entries_size() const;
-  void clear_dict_entries();
-  DebugAnnotation* add_dict_entries();
-
-  const std::vector<DebugAnnotation>& array_values() const { return array_values_; }
-  std::vector<DebugAnnotation>* mutable_array_values() { return &array_values_; }
-  int array_values_size() const;
-  void clear_array_values();
-  DebugAnnotation* add_array_values();
-
- private:
-  uint64_t name_iid_{};
-  std::string name_{};
-  bool bool_value_{};
-  uint64_t uint_value_{};
-  int64_t int_value_{};
-  double double_value_{};
-  std::string string_value_{};
-  uint64_t pointer_value_{};
-  ::protozero::CopyablePtr<DebugAnnotation_NestedValue> nested_value_;
-  std::string legacy_json_value_{};
-  std::vector<DebugAnnotation> dict_entries_;
-  std::vector<DebugAnnotation> array_values_;
-
-  // Allows to preserve unknown protobuf fields for compatibility
-  // with future versions of .proto files.
-  std::string unknown_fields_;
-
-  std::bitset<13> _has_field_{};
-};
-
-
-class PERFETTO_EXPORT DebugAnnotation_NestedValue : public ::protozero::CppMessageObj {
- public:
-  using NestedType = DebugAnnotation_NestedValue_NestedType;
-  static constexpr auto UNSPECIFIED = DebugAnnotation_NestedValue_NestedType_UNSPECIFIED;
-  static constexpr auto DICT = DebugAnnotation_NestedValue_NestedType_DICT;
-  static constexpr auto ARRAY = DebugAnnotation_NestedValue_NestedType_ARRAY;
-  static constexpr auto NestedType_MIN = DebugAnnotation_NestedValue_NestedType_UNSPECIFIED;
-  static constexpr auto NestedType_MAX = DebugAnnotation_NestedValue_NestedType_ARRAY;
-  enum FieldNumbers {
-    kNestedTypeFieldNumber = 1,
-    kDictKeysFieldNumber = 2,
-    kDictValuesFieldNumber = 3,
-    kArrayValuesFieldNumber = 4,
-    kIntValueFieldNumber = 5,
-    kDoubleValueFieldNumber = 6,
-    kBoolValueFieldNumber = 7,
-    kStringValueFieldNumber = 8,
-  };
-
-  DebugAnnotation_NestedValue();
-  ~DebugAnnotation_NestedValue() override;
-  DebugAnnotation_NestedValue(DebugAnnotation_NestedValue&&) noexcept;
-  DebugAnnotation_NestedValue& operator=(DebugAnnotation_NestedValue&&);
-  DebugAnnotation_NestedValue(const DebugAnnotation_NestedValue&);
-  DebugAnnotation_NestedValue& operator=(const DebugAnnotation_NestedValue&);
-  bool operator==(const DebugAnnotation_NestedValue&) const;
-  bool operator!=(const DebugAnnotation_NestedValue& other) const { return !(*this == other); }
-
-  bool ParseFromArray(const void*, size_t) override;
-  std::string SerializeAsString() const override;
-  std::vector<uint8_t> SerializeAsArray() const override;
-  void Serialize(::protozero::Message*) const;
-
-  bool has_nested_type() const { return _has_field_[1]; }
-  DebugAnnotation_NestedValue_NestedType nested_type() const { return nested_type_; }
-  void set_nested_type(DebugAnnotation_NestedValue_NestedType value) { nested_type_ = value; _has_field_.set(1); }
-
-  const std::vector<std::string>& dict_keys() const { return dict_keys_; }
-  std::vector<std::string>* mutable_dict_keys() { return &dict_keys_; }
-  int dict_keys_size() const { return static_cast<int>(dict_keys_.size()); }
-  void clear_dict_keys() { dict_keys_.clear(); }
-  void add_dict_keys(std::string value) { dict_keys_.emplace_back(value); }
-  std::string* add_dict_keys() { dict_keys_.emplace_back(); return &dict_keys_.back(); }
-
-  const std::vector<DebugAnnotation_NestedValue>& dict_values() const { return dict_values_; }
-  std::vector<DebugAnnotation_NestedValue>* mutable_dict_values() { return &dict_values_; }
-  int dict_values_size() const;
-  void clear_dict_values();
-  DebugAnnotation_NestedValue* add_dict_values();
-
-  const std::vector<DebugAnnotation_NestedValue>& array_values() const { return array_values_; }
-  std::vector<DebugAnnotation_NestedValue>* mutable_array_values() { return &array_values_; }
-  int array_values_size() const;
-  void clear_array_values();
-  DebugAnnotation_NestedValue* add_array_values();
-
-  bool has_int_value() const { return _has_field_[5]; }
-  int64_t int_value() const { return int_value_; }
-  void set_int_value(int64_t value) { int_value_ = value; _has_field_.set(5); }
-
-  bool has_double_value() const { return _has_field_[6]; }
-  double double_value() const { return double_value_; }
-  void set_double_value(double value) { double_value_ = value; _has_field_.set(6); }
-
-  bool has_bool_value() const { return _has_field_[7]; }
-  bool bool_value() const { return bool_value_; }
-  void set_bool_value(bool value) { bool_value_ = value; _has_field_.set(7); }
-
-  bool has_string_value() const { return _has_field_[8]; }
-  const std::string& string_value() const { return string_value_; }
-  void set_string_value(const std::string& value) { string_value_ = value; _has_field_.set(8); }
-
- private:
-  DebugAnnotation_NestedValue_NestedType nested_type_{};
-  std::vector<std::string> dict_keys_;
-  std::vector<DebugAnnotation_NestedValue> dict_values_;
-  std::vector<DebugAnnotation_NestedValue> array_values_;
-  int64_t int_value_{};
-  double double_value_{};
-  bool bool_value_{};
-  std::string string_value_{};
-
-  // Allows to preserve unknown protobuf fields for compatibility
-  // with future versions of .proto files.
-  std::string unknown_fields_;
-
-  std::bitset<9> _has_field_{};
-};
-
-}  // namespace perfetto
-}  // namespace protos
-}  // namespace gen
-
-#endif  // PERFETTO_PROTOS_PROTOS_PERFETTO_TRACE_TRACK_EVENT_DEBUG_ANNOTATION_PROTO_CPP_H_
-// gen_amalgamated begin header: gen/protos/perfetto/trace/track_event/log_message.gen.h
-// DO NOT EDIT. Autogenerated by Perfetto cppgen_plugin
-#ifndef PERFETTO_PROTOS_PROTOS_PERFETTO_TRACE_TRACK_EVENT_LOG_MESSAGE_PROTO_CPP_H_
-#define PERFETTO_PROTOS_PROTOS_PERFETTO_TRACE_TRACK_EVENT_LOG_MESSAGE_PROTO_CPP_H_
-
-#include <stdint.h>
-#include <bitset>
-#include <vector>
-#include <string>
-#include <type_traits>
-
-// gen_amalgamated expanded: #include "perfetto/protozero/cpp_message_obj.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/copyable_ptr.h"
-// gen_amalgamated expanded: #include "perfetto/base/export.h"
-
-namespace perfetto {
-namespace protos {
-namespace gen {
-class LogMessageBody;
-class LogMessage;
-}  // namespace perfetto
-}  // namespace protos
-}  // namespace gen
-
-namespace protozero {
-class Message;
-}  // namespace protozero
-
-namespace perfetto {
-namespace protos {
-namespace gen {
-
-class PERFETTO_EXPORT LogMessageBody : public ::protozero::CppMessageObj {
- public:
-  enum FieldNumbers {
-    kIidFieldNumber = 1,
-    kBodyFieldNumber = 2,
-  };
-
-  LogMessageBody();
-  ~LogMessageBody() override;
-  LogMessageBody(LogMessageBody&&) noexcept;
-  LogMessageBody& operator=(LogMessageBody&&);
-  LogMessageBody(const LogMessageBody&);
-  LogMessageBody& operator=(const LogMessageBody&);
-  bool operator==(const LogMessageBody&) const;
-  bool operator!=(const LogMessageBody& other) const { return !(*this == other); }
-
-  bool ParseFromArray(const void*, size_t) override;
-  std::string SerializeAsString() const override;
-  std::vector<uint8_t> SerializeAsArray() const override;
-  void Serialize(::protozero::Message*) const;
-
-  bool has_iid() const { return _has_field_[1]; }
-  uint64_t iid() const { return iid_; }
-  void set_iid(uint64_t value) { iid_ = value; _has_field_.set(1); }
-
-  bool has_body() const { return _has_field_[2]; }
-  const std::string& body() const { return body_; }
-  void set_body(const std::string& value) { body_ = value; _has_field_.set(2); }
-
- private:
-  uint64_t iid_{};
-  std::string body_{};
-
-  // Allows to preserve unknown protobuf fields for compatibility
-  // with future versions of .proto files.
-  std::string unknown_fields_;
-
-  std::bitset<3> _has_field_{};
-};
-
-
-class PERFETTO_EXPORT LogMessage : public ::protozero::CppMessageObj {
- public:
-  enum FieldNumbers {
-    kSourceLocationIidFieldNumber = 1,
-    kBodyIidFieldNumber = 2,
-  };
-
-  LogMessage();
-  ~LogMessage() override;
-  LogMessage(LogMessage&&) noexcept;
-  LogMessage& operator=(LogMessage&&);
-  LogMessage(const LogMessage&);
-  LogMessage& operator=(const LogMessage&);
-  bool operator==(const LogMessage&) const;
-  bool operator!=(const LogMessage& other) const { return !(*this == other); }
-
-  bool ParseFromArray(const void*, size_t) override;
-  std::string SerializeAsString() const override;
-  std::vector<uint8_t> SerializeAsArray() const override;
-  void Serialize(::protozero::Message*) const;
-
-  bool has_source_location_iid() const { return _has_field_[1]; }
-  uint64_t source_location_iid() const { return source_location_iid_; }
-  void set_source_location_iid(uint64_t value) { source_location_iid_ = value; _has_field_.set(1); }
-
-  bool has_body_iid() const { return _has_field_[2]; }
-  uint64_t body_iid() const { return body_iid_; }
-  void set_body_iid(uint64_t value) { body_iid_ = value; _has_field_.set(2); }
-
- private:
-  uint64_t source_location_iid_{};
-  uint64_t body_iid_{};
-
-  // Allows to preserve unknown protobuf fields for compatibility
-  // with future versions of .proto files.
-  std::string unknown_fields_;
-
-  std::bitset<3> _has_field_{};
-};
-
-}  // namespace perfetto
-}  // namespace protos
-}  // namespace gen
-
-#endif  // PERFETTO_PROTOS_PROTOS_PERFETTO_TRACE_TRACK_EVENT_LOG_MESSAGE_PROTO_CPP_H_
-// gen_amalgamated begin header: gen/protos/perfetto/trace/track_event/process_descriptor.gen.h
-// DO NOT EDIT. Autogenerated by Perfetto cppgen_plugin
-#ifndef PERFETTO_PROTOS_PROTOS_PERFETTO_TRACE_TRACK_EVENT_PROCESS_DESCRIPTOR_PROTO_CPP_H_
-#define PERFETTO_PROTOS_PROTOS_PERFETTO_TRACE_TRACK_EVENT_PROCESS_DESCRIPTOR_PROTO_CPP_H_
-
-#include <stdint.h>
-#include <bitset>
-#include <vector>
-#include <string>
-#include <type_traits>
-
-// gen_amalgamated expanded: #include "perfetto/protozero/cpp_message_obj.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/copyable_ptr.h"
-// gen_amalgamated expanded: #include "perfetto/base/export.h"
-
-namespace perfetto {
-namespace protos {
-namespace gen {
-class ProcessDescriptor;
-enum ProcessDescriptor_ChromeProcessType : int;
-}  // namespace perfetto
-}  // namespace protos
-}  // namespace gen
-
-namespace protozero {
-class Message;
-}  // namespace protozero
-
-namespace perfetto {
-namespace protos {
-namespace gen {
-enum ProcessDescriptor_ChromeProcessType : int {
-  ProcessDescriptor_ChromeProcessType_PROCESS_UNSPECIFIED = 0,
-  ProcessDescriptor_ChromeProcessType_PROCESS_BROWSER = 1,
-  ProcessDescriptor_ChromeProcessType_PROCESS_RENDERER = 2,
-  ProcessDescriptor_ChromeProcessType_PROCESS_UTILITY = 3,
-  ProcessDescriptor_ChromeProcessType_PROCESS_ZYGOTE = 4,
-  ProcessDescriptor_ChromeProcessType_PROCESS_SANDBOX_HELPER = 5,
-  ProcessDescriptor_ChromeProcessType_PROCESS_GPU = 6,
-  ProcessDescriptor_ChromeProcessType_PROCESS_PPAPI_PLUGIN = 7,
-  ProcessDescriptor_ChromeProcessType_PROCESS_PPAPI_BROKER = 8,
-};
-
-class PERFETTO_EXPORT ProcessDescriptor : public ::protozero::CppMessageObj {
- public:
-  using ChromeProcessType = ProcessDescriptor_ChromeProcessType;
-  static constexpr auto PROCESS_UNSPECIFIED = ProcessDescriptor_ChromeProcessType_PROCESS_UNSPECIFIED;
-  static constexpr auto PROCESS_BROWSER = ProcessDescriptor_ChromeProcessType_PROCESS_BROWSER;
-  static constexpr auto PROCESS_RENDERER = ProcessDescriptor_ChromeProcessType_PROCESS_RENDERER;
-  static constexpr auto PROCESS_UTILITY = ProcessDescriptor_ChromeProcessType_PROCESS_UTILITY;
-  static constexpr auto PROCESS_ZYGOTE = ProcessDescriptor_ChromeProcessType_PROCESS_ZYGOTE;
-  static constexpr auto PROCESS_SANDBOX_HELPER = ProcessDescriptor_ChromeProcessType_PROCESS_SANDBOX_HELPER;
-  static constexpr auto PROCESS_GPU = ProcessDescriptor_ChromeProcessType_PROCESS_GPU;
-  static constexpr auto PROCESS_PPAPI_PLUGIN = ProcessDescriptor_ChromeProcessType_PROCESS_PPAPI_PLUGIN;
-  static constexpr auto PROCESS_PPAPI_BROKER = ProcessDescriptor_ChromeProcessType_PROCESS_PPAPI_BROKER;
-  static constexpr auto ChromeProcessType_MIN = ProcessDescriptor_ChromeProcessType_PROCESS_UNSPECIFIED;
-  static constexpr auto ChromeProcessType_MAX = ProcessDescriptor_ChromeProcessType_PROCESS_PPAPI_BROKER;
-  enum FieldNumbers {
-    kPidFieldNumber = 1,
-    kCmdlineFieldNumber = 2,
-    kProcessNameFieldNumber = 6,
-    kProcessPriorityFieldNumber = 5,
-    kStartTimestampNsFieldNumber = 7,
-    kChromeProcessTypeFieldNumber = 4,
-    kLegacySortIndexFieldNumber = 3,
-  };
-
-  ProcessDescriptor();
-  ~ProcessDescriptor() override;
-  ProcessDescriptor(ProcessDescriptor&&) noexcept;
-  ProcessDescriptor& operator=(ProcessDescriptor&&);
-  ProcessDescriptor(const ProcessDescriptor&);
-  ProcessDescriptor& operator=(const ProcessDescriptor&);
-  bool operator==(const ProcessDescriptor&) const;
-  bool operator!=(const ProcessDescriptor& other) const { return !(*this == other); }
-
-  bool ParseFromArray(const void*, size_t) override;
-  std::string SerializeAsString() const override;
-  std::vector<uint8_t> SerializeAsArray() const override;
-  void Serialize(::protozero::Message*) const;
-
-  bool has_pid() const { return _has_field_[1]; }
-  int32_t pid() const { return pid_; }
-  void set_pid(int32_t value) { pid_ = value; _has_field_.set(1); }
-
-  const std::vector<std::string>& cmdline() const { return cmdline_; }
-  std::vector<std::string>* mutable_cmdline() { return &cmdline_; }
-  int cmdline_size() const { return static_cast<int>(cmdline_.size()); }
-  void clear_cmdline() { cmdline_.clear(); }
-  void add_cmdline(std::string value) { cmdline_.emplace_back(value); }
-  std::string* add_cmdline() { cmdline_.emplace_back(); return &cmdline_.back(); }
-
-  bool has_process_name() const { return _has_field_[6]; }
-  const std::string& process_name() const { return process_name_; }
-  void set_process_name(const std::string& value) { process_name_ = value; _has_field_.set(6); }
-
-  bool has_process_priority() const { return _has_field_[5]; }
-  int32_t process_priority() const { return process_priority_; }
-  void set_process_priority(int32_t value) { process_priority_ = value; _has_field_.set(5); }
-
-  bool has_start_timestamp_ns() const { return _has_field_[7]; }
-  int64_t start_timestamp_ns() const { return start_timestamp_ns_; }
-  void set_start_timestamp_ns(int64_t value) { start_timestamp_ns_ = value; _has_field_.set(7); }
-
-  bool has_chrome_process_type() const { return _has_field_[4]; }
-  ProcessDescriptor_ChromeProcessType chrome_process_type() const { return chrome_process_type_; }
-  void set_chrome_process_type(ProcessDescriptor_ChromeProcessType value) { chrome_process_type_ = value; _has_field_.set(4); }
-
-  bool has_legacy_sort_index() const { return _has_field_[3]; }
-  int32_t legacy_sort_index() const { return legacy_sort_index_; }
-  void set_legacy_sort_index(int32_t value) { legacy_sort_index_ = value; _has_field_.set(3); }
-
- private:
-  int32_t pid_{};
-  std::vector<std::string> cmdline_;
-  std::string process_name_{};
-  int32_t process_priority_{};
-  int64_t start_timestamp_ns_{};
-  ProcessDescriptor_ChromeProcessType chrome_process_type_{};
-  int32_t legacy_sort_index_{};
-
-  // Allows to preserve unknown protobuf fields for compatibility
-  // with future versions of .proto files.
-  std::string unknown_fields_;
-
-  std::bitset<8> _has_field_{};
-};
-
-}  // namespace perfetto
-}  // namespace protos
-}  // namespace gen
-
-#endif  // PERFETTO_PROTOS_PROTOS_PERFETTO_TRACE_TRACK_EVENT_PROCESS_DESCRIPTOR_PROTO_CPP_H_
-// gen_amalgamated begin header: gen/protos/perfetto/trace/track_event/source_location.gen.h
-// DO NOT EDIT. Autogenerated by Perfetto cppgen_plugin
-#ifndef PERFETTO_PROTOS_PROTOS_PERFETTO_TRACE_TRACK_EVENT_SOURCE_LOCATION_PROTO_CPP_H_
-#define PERFETTO_PROTOS_PROTOS_PERFETTO_TRACE_TRACK_EVENT_SOURCE_LOCATION_PROTO_CPP_H_
-
-#include <stdint.h>
-#include <bitset>
-#include <vector>
-#include <string>
-#include <type_traits>
-
-// gen_amalgamated expanded: #include "perfetto/protozero/cpp_message_obj.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/copyable_ptr.h"
-// gen_amalgamated expanded: #include "perfetto/base/export.h"
-
-namespace perfetto {
-namespace protos {
-namespace gen {
-class SourceLocation;
-}  // namespace perfetto
-}  // namespace protos
-}  // namespace gen
-
-namespace protozero {
-class Message;
-}  // namespace protozero
-
-namespace perfetto {
-namespace protos {
-namespace gen {
-
-class PERFETTO_EXPORT SourceLocation : public ::protozero::CppMessageObj {
- public:
-  enum FieldNumbers {
-    kIidFieldNumber = 1,
-    kFileNameFieldNumber = 2,
-    kFunctionNameFieldNumber = 3,
-    kLineNumberFieldNumber = 4,
-  };
-
-  SourceLocation();
-  ~SourceLocation() override;
-  SourceLocation(SourceLocation&&) noexcept;
-  SourceLocation& operator=(SourceLocation&&);
-  SourceLocation(const SourceLocation&);
-  SourceLocation& operator=(const SourceLocation&);
-  bool operator==(const SourceLocation&) const;
-  bool operator!=(const SourceLocation& other) const { return !(*this == other); }
-
-  bool ParseFromArray(const void*, size_t) override;
-  std::string SerializeAsString() const override;
-  std::vector<uint8_t> SerializeAsArray() const override;
-  void Serialize(::protozero::Message*) const;
-
-  bool has_iid() const { return _has_field_[1]; }
-  uint64_t iid() const { return iid_; }
-  void set_iid(uint64_t value) { iid_ = value; _has_field_.set(1); }
-
-  bool has_file_name() const { return _has_field_[2]; }
-  const std::string& file_name() const { return file_name_; }
-  void set_file_name(const std::string& value) { file_name_ = value; _has_field_.set(2); }
-
-  bool has_function_name() const { return _has_field_[3]; }
-  const std::string& function_name() const { return function_name_; }
-  void set_function_name(const std::string& value) { function_name_ = value; _has_field_.set(3); }
-
-  bool has_line_number() const { return _has_field_[4]; }
-  uint32_t line_number() const { return line_number_; }
-  void set_line_number(uint32_t value) { line_number_ = value; _has_field_.set(4); }
-
- private:
-  uint64_t iid_{};
-  std::string file_name_{};
-  std::string function_name_{};
-  uint32_t line_number_{};
-
-  // Allows to preserve unknown protobuf fields for compatibility
-  // with future versions of .proto files.
-  std::string unknown_fields_;
-
-  std::bitset<5> _has_field_{};
-};
-
-}  // namespace perfetto
-}  // namespace protos
-}  // namespace gen
-
-#endif  // PERFETTO_PROTOS_PROTOS_PERFETTO_TRACE_TRACK_EVENT_SOURCE_LOCATION_PROTO_CPP_H_
-// gen_amalgamated begin header: gen/protos/perfetto/trace/track_event/task_execution.gen.h
-// DO NOT EDIT. Autogenerated by Perfetto cppgen_plugin
-#ifndef PERFETTO_PROTOS_PROTOS_PERFETTO_TRACE_TRACK_EVENT_TASK_EXECUTION_PROTO_CPP_H_
-#define PERFETTO_PROTOS_PROTOS_PERFETTO_TRACE_TRACK_EVENT_TASK_EXECUTION_PROTO_CPP_H_
-
-#include <stdint.h>
-#include <bitset>
-#include <vector>
-#include <string>
-#include <type_traits>
-
-// gen_amalgamated expanded: #include "perfetto/protozero/cpp_message_obj.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/copyable_ptr.h"
-// gen_amalgamated expanded: #include "perfetto/base/export.h"
-
-namespace perfetto {
-namespace protos {
-namespace gen {
-class TaskExecution;
-}  // namespace perfetto
-}  // namespace protos
-}  // namespace gen
-
-namespace protozero {
-class Message;
-}  // namespace protozero
-
-namespace perfetto {
-namespace protos {
-namespace gen {
-
-class PERFETTO_EXPORT TaskExecution : public ::protozero::CppMessageObj {
- public:
-  enum FieldNumbers {
-    kPostedFromIidFieldNumber = 1,
-  };
-
-  TaskExecution();
-  ~TaskExecution() override;
-  TaskExecution(TaskExecution&&) noexcept;
-  TaskExecution& operator=(TaskExecution&&);
-  TaskExecution(const TaskExecution&);
-  TaskExecution& operator=(const TaskExecution&);
-  bool operator==(const TaskExecution&) const;
-  bool operator!=(const TaskExecution& other) const { return !(*this == other); }
-
-  bool ParseFromArray(const void*, size_t) override;
-  std::string SerializeAsString() const override;
-  std::vector<uint8_t> SerializeAsArray() const override;
-  void Serialize(::protozero::Message*) const;
-
-  bool has_posted_from_iid() const { return _has_field_[1]; }
-  uint64_t posted_from_iid() const { return posted_from_iid_; }
-  void set_posted_from_iid(uint64_t value) { posted_from_iid_ = value; _has_field_.set(1); }
-
- private:
-  uint64_t posted_from_iid_{};
-
-  // Allows to preserve unknown protobuf fields for compatibility
-  // with future versions of .proto files.
-  std::string unknown_fields_;
-
-  std::bitset<2> _has_field_{};
-};
-
-}  // namespace perfetto
-}  // namespace protos
-}  // namespace gen
-
-#endif  // PERFETTO_PROTOS_PROTOS_PERFETTO_TRACE_TRACK_EVENT_TASK_EXECUTION_PROTO_CPP_H_
-// gen_amalgamated begin header: gen/protos/perfetto/trace/track_event/thread_descriptor.gen.h
-// DO NOT EDIT. Autogenerated by Perfetto cppgen_plugin
-#ifndef PERFETTO_PROTOS_PROTOS_PERFETTO_TRACE_TRACK_EVENT_THREAD_DESCRIPTOR_PROTO_CPP_H_
-#define PERFETTO_PROTOS_PROTOS_PERFETTO_TRACE_TRACK_EVENT_THREAD_DESCRIPTOR_PROTO_CPP_H_
-
-#include <stdint.h>
-#include <bitset>
-#include <vector>
-#include <string>
-#include <type_traits>
-
-// gen_amalgamated expanded: #include "perfetto/protozero/cpp_message_obj.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/copyable_ptr.h"
-// gen_amalgamated expanded: #include "perfetto/base/export.h"
-
-namespace perfetto {
-namespace protos {
-namespace gen {
-class ThreadDescriptor;
-enum ThreadDescriptor_ChromeThreadType : int;
-}  // namespace perfetto
-}  // namespace protos
-}  // namespace gen
-
-namespace protozero {
-class Message;
-}  // namespace protozero
-
-namespace perfetto {
-namespace protos {
-namespace gen {
-enum ThreadDescriptor_ChromeThreadType : int {
-  ThreadDescriptor_ChromeThreadType_CHROME_THREAD_UNSPECIFIED = 0,
-  ThreadDescriptor_ChromeThreadType_CHROME_THREAD_MAIN = 1,
-  ThreadDescriptor_ChromeThreadType_CHROME_THREAD_IO = 2,
-  ThreadDescriptor_ChromeThreadType_CHROME_THREAD_POOL_BG_WORKER = 3,
-  ThreadDescriptor_ChromeThreadType_CHROME_THREAD_POOL_FG_WORKER = 4,
-  ThreadDescriptor_ChromeThreadType_CHROME_THREAD_POOL_FB_BLOCKING = 5,
-  ThreadDescriptor_ChromeThreadType_CHROME_THREAD_POOL_BG_BLOCKING = 6,
-  ThreadDescriptor_ChromeThreadType_CHROME_THREAD_POOL_SERVICE = 7,
-  ThreadDescriptor_ChromeThreadType_CHROME_THREAD_COMPOSITOR = 8,
-  ThreadDescriptor_ChromeThreadType_CHROME_THREAD_VIZ_COMPOSITOR = 9,
-  ThreadDescriptor_ChromeThreadType_CHROME_THREAD_COMPOSITOR_WORKER = 10,
-  ThreadDescriptor_ChromeThreadType_CHROME_THREAD_SERVICE_WORKER = 11,
-  ThreadDescriptor_ChromeThreadType_CHROME_THREAD_MEMORY_INFRA = 50,
-  ThreadDescriptor_ChromeThreadType_CHROME_THREAD_SAMPLING_PROFILER = 51,
-};
-
-class PERFETTO_EXPORT ThreadDescriptor : public ::protozero::CppMessageObj {
- public:
-  using ChromeThreadType = ThreadDescriptor_ChromeThreadType;
-  static constexpr auto CHROME_THREAD_UNSPECIFIED = ThreadDescriptor_ChromeThreadType_CHROME_THREAD_UNSPECIFIED;
-  static constexpr auto CHROME_THREAD_MAIN = ThreadDescriptor_ChromeThreadType_CHROME_THREAD_MAIN;
-  static constexpr auto CHROME_THREAD_IO = ThreadDescriptor_ChromeThreadType_CHROME_THREAD_IO;
-  static constexpr auto CHROME_THREAD_POOL_BG_WORKER = ThreadDescriptor_ChromeThreadType_CHROME_THREAD_POOL_BG_WORKER;
-  static constexpr auto CHROME_THREAD_POOL_FG_WORKER = ThreadDescriptor_ChromeThreadType_CHROME_THREAD_POOL_FG_WORKER;
-  static constexpr auto CHROME_THREAD_POOL_FB_BLOCKING = ThreadDescriptor_ChromeThreadType_CHROME_THREAD_POOL_FB_BLOCKING;
-  static constexpr auto CHROME_THREAD_POOL_BG_BLOCKING = ThreadDescriptor_ChromeThreadType_CHROME_THREAD_POOL_BG_BLOCKING;
-  static constexpr auto CHROME_THREAD_POOL_SERVICE = ThreadDescriptor_ChromeThreadType_CHROME_THREAD_POOL_SERVICE;
-  static constexpr auto CHROME_THREAD_COMPOSITOR = ThreadDescriptor_ChromeThreadType_CHROME_THREAD_COMPOSITOR;
-  static constexpr auto CHROME_THREAD_VIZ_COMPOSITOR = ThreadDescriptor_ChromeThreadType_CHROME_THREAD_VIZ_COMPOSITOR;
-  static constexpr auto CHROME_THREAD_COMPOSITOR_WORKER = ThreadDescriptor_ChromeThreadType_CHROME_THREAD_COMPOSITOR_WORKER;
-  static constexpr auto CHROME_THREAD_SERVICE_WORKER = ThreadDescriptor_ChromeThreadType_CHROME_THREAD_SERVICE_WORKER;
-  static constexpr auto CHROME_THREAD_MEMORY_INFRA = ThreadDescriptor_ChromeThreadType_CHROME_THREAD_MEMORY_INFRA;
-  static constexpr auto CHROME_THREAD_SAMPLING_PROFILER = ThreadDescriptor_ChromeThreadType_CHROME_THREAD_SAMPLING_PROFILER;
-  static constexpr auto ChromeThreadType_MIN = ThreadDescriptor_ChromeThreadType_CHROME_THREAD_UNSPECIFIED;
-  static constexpr auto ChromeThreadType_MAX = ThreadDescriptor_ChromeThreadType_CHROME_THREAD_SAMPLING_PROFILER;
-  enum FieldNumbers {
-    kPidFieldNumber = 1,
-    kTidFieldNumber = 2,
-    kThreadNameFieldNumber = 5,
-    kChromeThreadTypeFieldNumber = 4,
-    kReferenceTimestampUsFieldNumber = 6,
-    kReferenceThreadTimeUsFieldNumber = 7,
-    kReferenceThreadInstructionCountFieldNumber = 8,
-    kLegacySortIndexFieldNumber = 3,
-  };
-
-  ThreadDescriptor();
-  ~ThreadDescriptor() override;
-  ThreadDescriptor(ThreadDescriptor&&) noexcept;
-  ThreadDescriptor& operator=(ThreadDescriptor&&);
-  ThreadDescriptor(const ThreadDescriptor&);
-  ThreadDescriptor& operator=(const ThreadDescriptor&);
-  bool operator==(const ThreadDescriptor&) const;
-  bool operator!=(const ThreadDescriptor& other) const { return !(*this == other); }
-
-  bool ParseFromArray(const void*, size_t) override;
-  std::string SerializeAsString() const override;
-  std::vector<uint8_t> SerializeAsArray() const override;
-  void Serialize(::protozero::Message*) const;
-
-  bool has_pid() const { return _has_field_[1]; }
-  int32_t pid() const { return pid_; }
-  void set_pid(int32_t value) { pid_ = value; _has_field_.set(1); }
-
-  bool has_tid() const { return _has_field_[2]; }
-  int32_t tid() const { return tid_; }
-  void set_tid(int32_t value) { tid_ = value; _has_field_.set(2); }
-
-  bool has_thread_name() const { return _has_field_[5]; }
-  const std::string& thread_name() const { return thread_name_; }
-  void set_thread_name(const std::string& value) { thread_name_ = value; _has_field_.set(5); }
-
-  bool has_chrome_thread_type() const { return _has_field_[4]; }
-  ThreadDescriptor_ChromeThreadType chrome_thread_type() const { return chrome_thread_type_; }
-  void set_chrome_thread_type(ThreadDescriptor_ChromeThreadType value) { chrome_thread_type_ = value; _has_field_.set(4); }
-
-  bool has_reference_timestamp_us() const { return _has_field_[6]; }
-  int64_t reference_timestamp_us() const { return reference_timestamp_us_; }
-  void set_reference_timestamp_us(int64_t value) { reference_timestamp_us_ = value; _has_field_.set(6); }
-
-  bool has_reference_thread_time_us() const { return _has_field_[7]; }
-  int64_t reference_thread_time_us() const { return reference_thread_time_us_; }
-  void set_reference_thread_time_us(int64_t value) { reference_thread_time_us_ = value; _has_field_.set(7); }
-
-  bool has_reference_thread_instruction_count() const { return _has_field_[8]; }
-  int64_t reference_thread_instruction_count() const { return reference_thread_instruction_count_; }
-  void set_reference_thread_instruction_count(int64_t value) { reference_thread_instruction_count_ = value; _has_field_.set(8); }
-
-  bool has_legacy_sort_index() const { return _has_field_[3]; }
-  int32_t legacy_sort_index() const { return legacy_sort_index_; }
-  void set_legacy_sort_index(int32_t value) { legacy_sort_index_ = value; _has_field_.set(3); }
-
- private:
-  int32_t pid_{};
-  int32_t tid_{};
-  std::string thread_name_{};
-  ThreadDescriptor_ChromeThreadType chrome_thread_type_{};
-  int64_t reference_timestamp_us_{};
-  int64_t reference_thread_time_us_{};
-  int64_t reference_thread_instruction_count_{};
-  int32_t legacy_sort_index_{};
-
-  // Allows to preserve unknown protobuf fields for compatibility
-  // with future versions of .proto files.
-  std::string unknown_fields_;
-
-  std::bitset<9> _has_field_{};
-};
-
-}  // namespace perfetto
-}  // namespace protos
-}  // namespace gen
-
-#endif  // PERFETTO_PROTOS_PROTOS_PERFETTO_TRACE_TRACK_EVENT_THREAD_DESCRIPTOR_PROTO_CPP_H_
-// gen_amalgamated begin header: gen/protos/perfetto/trace/track_event/track_descriptor.gen.h
-// DO NOT EDIT. Autogenerated by Perfetto cppgen_plugin
-#ifndef PERFETTO_PROTOS_PROTOS_PERFETTO_TRACE_TRACK_EVENT_TRACK_DESCRIPTOR_PROTO_CPP_H_
-#define PERFETTO_PROTOS_PROTOS_PERFETTO_TRACE_TRACK_EVENT_TRACK_DESCRIPTOR_PROTO_CPP_H_
-
-#include <stdint.h>
-#include <bitset>
-#include <vector>
-#include <string>
-#include <type_traits>
-
-// gen_amalgamated expanded: #include "perfetto/protozero/cpp_message_obj.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/copyable_ptr.h"
-// gen_amalgamated expanded: #include "perfetto/base/export.h"
-
-namespace perfetto {
-namespace protos {
-namespace gen {
-class TrackDescriptor;
-class CounterDescriptor;
-class ChromeThreadDescriptor;
-class ThreadDescriptor;
-class ChromeProcessDescriptor;
-class ProcessDescriptor;
-enum CounterDescriptor_BuiltinCounterType : int;
-enum CounterDescriptor_Unit : int;
-enum ChromeThreadDescriptor_ThreadType : int;
-enum ThreadDescriptor_ChromeThreadType : int;
-enum ChromeProcessDescriptor_ProcessType : int;
-enum ProcessDescriptor_ChromeProcessType : int;
-}  // namespace perfetto
-}  // namespace protos
-}  // namespace gen
-
-namespace protozero {
-class Message;
-}  // namespace protozero
-
-namespace perfetto {
-namespace protos {
-namespace gen {
-
-class PERFETTO_EXPORT TrackDescriptor : public ::protozero::CppMessageObj {
- public:
-  enum FieldNumbers {
-    kUuidFieldNumber = 1,
-    kParentUuidFieldNumber = 5,
-    kNameFieldNumber = 2,
-    kProcessFieldNumber = 3,
-    kChromeProcessFieldNumber = 6,
-    kThreadFieldNumber = 4,
-    kChromeThreadFieldNumber = 7,
-    kCounterFieldNumber = 8,
-  };
-
-  TrackDescriptor();
-  ~TrackDescriptor() override;
-  TrackDescriptor(TrackDescriptor&&) noexcept;
-  TrackDescriptor& operator=(TrackDescriptor&&);
-  TrackDescriptor(const TrackDescriptor&);
-  TrackDescriptor& operator=(const TrackDescriptor&);
-  bool operator==(const TrackDescriptor&) const;
-  bool operator!=(const TrackDescriptor& other) const { return !(*this == other); }
-
-  bool ParseFromArray(const void*, size_t) override;
-  std::string SerializeAsString() const override;
-  std::vector<uint8_t> SerializeAsArray() const override;
-  void Serialize(::protozero::Message*) const;
-
-  bool has_uuid() const { return _has_field_[1]; }
-  uint64_t uuid() const { return uuid_; }
-  void set_uuid(uint64_t value) { uuid_ = value; _has_field_.set(1); }
-
-  bool has_parent_uuid() const { return _has_field_[5]; }
-  uint64_t parent_uuid() const { return parent_uuid_; }
-  void set_parent_uuid(uint64_t value) { parent_uuid_ = value; _has_field_.set(5); }
-
-  bool has_name() const { return _has_field_[2]; }
-  const std::string& name() const { return name_; }
-  void set_name(const std::string& value) { name_ = value; _has_field_.set(2); }
-
-  bool has_process() const { return _has_field_[3]; }
-  const ProcessDescriptor& process() const { return *process_; }
-  ProcessDescriptor* mutable_process() { _has_field_.set(3); return process_.get(); }
-
-  bool has_chrome_process() const { return _has_field_[6]; }
-  const ChromeProcessDescriptor& chrome_process() const { return *chrome_process_; }
-  ChromeProcessDescriptor* mutable_chrome_process() { _has_field_.set(6); return chrome_process_.get(); }
-
-  bool has_thread() const { return _has_field_[4]; }
-  const ThreadDescriptor& thread() const { return *thread_; }
-  ThreadDescriptor* mutable_thread() { _has_field_.set(4); return thread_.get(); }
-
-  bool has_chrome_thread() const { return _has_field_[7]; }
-  const ChromeThreadDescriptor& chrome_thread() const { return *chrome_thread_; }
-  ChromeThreadDescriptor* mutable_chrome_thread() { _has_field_.set(7); return chrome_thread_.get(); }
-
-  bool has_counter() const { return _has_field_[8]; }
-  const CounterDescriptor& counter() const { return *counter_; }
-  CounterDescriptor* mutable_counter() { _has_field_.set(8); return counter_.get(); }
-
- private:
-  uint64_t uuid_{};
-  uint64_t parent_uuid_{};
-  std::string name_{};
-  ::protozero::CopyablePtr<ProcessDescriptor> process_;
-  ::protozero::CopyablePtr<ChromeProcessDescriptor> chrome_process_;
-  ::protozero::CopyablePtr<ThreadDescriptor> thread_;
-  ::protozero::CopyablePtr<ChromeThreadDescriptor> chrome_thread_;
-  ::protozero::CopyablePtr<CounterDescriptor> counter_;
-
-  // Allows to preserve unknown protobuf fields for compatibility
-  // with future versions of .proto files.
-  std::string unknown_fields_;
-
-  std::bitset<9> _has_field_{};
-};
-
-}  // namespace perfetto
-}  // namespace protos
-}  // namespace gen
-
-#endif  // PERFETTO_PROTOS_PROTOS_PERFETTO_TRACE_TRACK_EVENT_TRACK_DESCRIPTOR_PROTO_CPP_H_
-// gen_amalgamated begin header: gen/protos/perfetto/trace/track_event/track_event.gen.h
-// DO NOT EDIT. Autogenerated by Perfetto cppgen_plugin
-#ifndef PERFETTO_PROTOS_PROTOS_PERFETTO_TRACE_TRACK_EVENT_TRACK_EVENT_PROTO_CPP_H_
-#define PERFETTO_PROTOS_PROTOS_PERFETTO_TRACE_TRACK_EVENT_TRACK_EVENT_PROTO_CPP_H_
-
-#include <stdint.h>
-#include <bitset>
-#include <vector>
-#include <string>
-#include <type_traits>
-
-// gen_amalgamated expanded: #include "perfetto/protozero/cpp_message_obj.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/copyable_ptr.h"
-// gen_amalgamated expanded: #include "perfetto/base/export.h"
-
-namespace perfetto {
-namespace protos {
-namespace gen {
-class EventName;
-class EventCategory;
-class TrackEventDefaults;
-class TrackEvent;
-class TrackEvent_LegacyEvent;
-class ChromeMojoEventInfo;
-class ChromeMessagePump;
-class SourceLocation;
-class ChromeContentSettingsEventInfo;
-class ChromeWindowHandleEventInfo;
-class ChromeRendererSchedulerState;
-class ChromeApplicationStateInfo;
-class ChromeFrameReporter;
-class ChromeLatencyInfo;
-class ChromeLatencyInfo_ComponentInfo;
-class ChromeHistogramSample;
-class ChromeLegacyIpc;
-class ChromeKeyedService;
-class ChromeUserEvent;
-class ChromeCompositorSchedulerState;
-class CompositorTimingHistory;
-class BeginFrameSourceState;
-class BeginFrameArgs;
-class BeginFrameObserverState;
-class BeginImplFrameArgs;
-class BeginImplFrameArgs_TimestampsInUs;
-class ChromeCompositorStateMachine;
-class ChromeCompositorStateMachine_MinorState;
-class ChromeCompositorStateMachine_MajorState;
-class LogMessage;
-class TaskExecution;
-class DebugAnnotation;
-class DebugAnnotation_NestedValue;
-enum TrackEvent_Type : int;
-enum TrackEvent_LegacyEvent_FlowDirection : int;
-enum TrackEvent_LegacyEvent_InstantEventScope : int;
-enum ChromeRAILMode : int;
-enum ChromeApplicationStateInfo_ChromeApplicationState : int;
-enum ChromeFrameReporter_State : int;
-enum ChromeFrameReporter_FrameDropReason : int;
-enum ChromeFrameReporter_ScrollState : int;
-enum ChromeLatencyInfo_Step : int;
-enum ChromeLatencyInfo_LatencyComponentType : int;
-enum ChromeLegacyIpc_MessageClass : int;
-enum ChromeCompositorSchedulerState_BeginImplFrameDeadlineMode : int;
-enum ChromeCompositorSchedulerAction : int;
-enum BeginFrameArgs_BeginFrameArgsType : int;
-enum BeginImplFrameArgs_State : int;
-enum ChromeCompositorStateMachine_MinorState_TreePriority : int;
-enum ChromeCompositorStateMachine_MinorState_ScrollHandlerState : int;
-enum ChromeCompositorStateMachine_MajorState_BeginImplFrameState : int;
-enum ChromeCompositorStateMachine_MajorState_BeginMainFrameState : int;
-enum ChromeCompositorStateMachine_MajorState_LayerTreeFrameSinkState : int;
-enum ChromeCompositorStateMachine_MajorState_ForcedRedrawOnTimeoutState : int;
-enum DebugAnnotation_NestedValue_NestedType : int;
-}  // namespace perfetto
-}  // namespace protos
-}  // namespace gen
-
-namespace protozero {
-class Message;
-}  // namespace protozero
-
-namespace perfetto {
-namespace protos {
-namespace gen {
-enum TrackEvent_Type : int {
-  TrackEvent_Type_TYPE_UNSPECIFIED = 0,
-  TrackEvent_Type_TYPE_SLICE_BEGIN = 1,
-  TrackEvent_Type_TYPE_SLICE_END = 2,
-  TrackEvent_Type_TYPE_INSTANT = 3,
-  TrackEvent_Type_TYPE_COUNTER = 4,
-};
-enum TrackEvent_LegacyEvent_FlowDirection : int {
-  TrackEvent_LegacyEvent_FlowDirection_FLOW_UNSPECIFIED = 0,
-  TrackEvent_LegacyEvent_FlowDirection_FLOW_IN = 1,
-  TrackEvent_LegacyEvent_FlowDirection_FLOW_OUT = 2,
-  TrackEvent_LegacyEvent_FlowDirection_FLOW_INOUT = 3,
-};
-enum TrackEvent_LegacyEvent_InstantEventScope : int {
-  TrackEvent_LegacyEvent_InstantEventScope_SCOPE_UNSPECIFIED = 0,
-  TrackEvent_LegacyEvent_InstantEventScope_SCOPE_GLOBAL = 1,
-  TrackEvent_LegacyEvent_InstantEventScope_SCOPE_PROCESS = 2,
-  TrackEvent_LegacyEvent_InstantEventScope_SCOPE_THREAD = 3,
-};
-
-class PERFETTO_EXPORT EventName : public ::protozero::CppMessageObj {
- public:
-  enum FieldNumbers {
-    kIidFieldNumber = 1,
-    kNameFieldNumber = 2,
-  };
-
-  EventName();
-  ~EventName() override;
-  EventName(EventName&&) noexcept;
-  EventName& operator=(EventName&&);
-  EventName(const EventName&);
-  EventName& operator=(const EventName&);
-  bool operator==(const EventName&) const;
-  bool operator!=(const EventName& other) const { return !(*this == other); }
-
-  bool ParseFromArray(const void*, size_t) override;
-  std::string SerializeAsString() const override;
-  std::vector<uint8_t> SerializeAsArray() const override;
-  void Serialize(::protozero::Message*) const;
-
-  bool has_iid() const { return _has_field_[1]; }
-  uint64_t iid() const { return iid_; }
-  void set_iid(uint64_t value) { iid_ = value; _has_field_.set(1); }
-
-  bool has_name() const { return _has_field_[2]; }
-  const std::string& name() const { return name_; }
-  void set_name(const std::string& value) { name_ = value; _has_field_.set(2); }
-
- private:
-  uint64_t iid_{};
-  std::string name_{};
-
-  // Allows to preserve unknown protobuf fields for compatibility
-  // with future versions of .proto files.
-  std::string unknown_fields_;
-
-  std::bitset<3> _has_field_{};
-};
-
-
-class PERFETTO_EXPORT EventCategory : public ::protozero::CppMessageObj {
- public:
-  enum FieldNumbers {
-    kIidFieldNumber = 1,
-    kNameFieldNumber = 2,
-  };
-
-  EventCategory();
-  ~EventCategory() override;
-  EventCategory(EventCategory&&) noexcept;
-  EventCategory& operator=(EventCategory&&);
-  EventCategory(const EventCategory&);
-  EventCategory& operator=(const EventCategory&);
-  bool operator==(const EventCategory&) const;
-  bool operator!=(const EventCategory& other) const { return !(*this == other); }
-
-  bool ParseFromArray(const void*, size_t) override;
-  std::string SerializeAsString() const override;
-  std::vector<uint8_t> SerializeAsArray() const override;
-  void Serialize(::protozero::Message*) const;
-
-  bool has_iid() const { return _has_field_[1]; }
-  uint64_t iid() const { return iid_; }
-  void set_iid(uint64_t value) { iid_ = value; _has_field_.set(1); }
-
-  bool has_name() const { return _has_field_[2]; }
-  const std::string& name() const { return name_; }
-  void set_name(const std::string& value) { name_ = value; _has_field_.set(2); }
-
- private:
-  uint64_t iid_{};
-  std::string name_{};
-
-  // Allows to preserve unknown protobuf fields for compatibility
-  // with future versions of .proto files.
-  std::string unknown_fields_;
-
-  std::bitset<3> _has_field_{};
-};
-
-
-class PERFETTO_EXPORT TrackEventDefaults : public ::protozero::CppMessageObj {
- public:
-  enum FieldNumbers {
-    kTrackUuidFieldNumber = 11,
-    kExtraCounterTrackUuidsFieldNumber = 31,
-    kExtraDoubleCounterTrackUuidsFieldNumber = 45,
-  };
-
-  TrackEventDefaults();
-  ~TrackEventDefaults() override;
-  TrackEventDefaults(TrackEventDefaults&&) noexcept;
-  TrackEventDefaults& operator=(TrackEventDefaults&&);
-  TrackEventDefaults(const TrackEventDefaults&);
-  TrackEventDefaults& operator=(const TrackEventDefaults&);
-  bool operator==(const TrackEventDefaults&) const;
-  bool operator!=(const TrackEventDefaults& other) const { return !(*this == other); }
-
-  bool ParseFromArray(const void*, size_t) override;
-  std::string SerializeAsString() const override;
-  std::vector<uint8_t> SerializeAsArray() const override;
-  void Serialize(::protozero::Message*) const;
-
-  bool has_track_uuid() const { return _has_field_[11]; }
-  uint64_t track_uuid() const { return track_uuid_; }
-  void set_track_uuid(uint64_t value) { track_uuid_ = value; _has_field_.set(11); }
-
-  const std::vector<uint64_t>& extra_counter_track_uuids() const { return extra_counter_track_uuids_; }
-  std::vector<uint64_t>* mutable_extra_counter_track_uuids() { return &extra_counter_track_uuids_; }
-  int extra_counter_track_uuids_size() const { return static_cast<int>(extra_counter_track_uuids_.size()); }
-  void clear_extra_counter_track_uuids() { extra_counter_track_uuids_.clear(); }
-  void add_extra_counter_track_uuids(uint64_t value) { extra_counter_track_uuids_.emplace_back(value); }
-  uint64_t* add_extra_counter_track_uuids() { extra_counter_track_uuids_.emplace_back(); return &extra_counter_track_uuids_.back(); }
-
-  const std::vector<uint64_t>& extra_double_counter_track_uuids() const { return extra_double_counter_track_uuids_; }
-  std::vector<uint64_t>* mutable_extra_double_counter_track_uuids() { return &extra_double_counter_track_uuids_; }
-  int extra_double_counter_track_uuids_size() const { return static_cast<int>(extra_double_counter_track_uuids_.size()); }
-  void clear_extra_double_counter_track_uuids() { extra_double_counter_track_uuids_.clear(); }
-  void add_extra_double_counter_track_uuids(uint64_t value) { extra_double_counter_track_uuids_.emplace_back(value); }
-  uint64_t* add_extra_double_counter_track_uuids() { extra_double_counter_track_uuids_.emplace_back(); return &extra_double_counter_track_uuids_.back(); }
-
- private:
-  uint64_t track_uuid_{};
-  std::vector<uint64_t> extra_counter_track_uuids_;
-  std::vector<uint64_t> extra_double_counter_track_uuids_;
-
-  // Allows to preserve unknown protobuf fields for compatibility
-  // with future versions of .proto files.
-  std::string unknown_fields_;
-
-  std::bitset<46> _has_field_{};
-};
-
-
-class PERFETTO_EXPORT TrackEvent : public ::protozero::CppMessageObj {
- public:
-  using LegacyEvent = TrackEvent_LegacyEvent;
-  using Type = TrackEvent_Type;
-  static constexpr auto TYPE_UNSPECIFIED = TrackEvent_Type_TYPE_UNSPECIFIED;
-  static constexpr auto TYPE_SLICE_BEGIN = TrackEvent_Type_TYPE_SLICE_BEGIN;
-  static constexpr auto TYPE_SLICE_END = TrackEvent_Type_TYPE_SLICE_END;
-  static constexpr auto TYPE_INSTANT = TrackEvent_Type_TYPE_INSTANT;
-  static constexpr auto TYPE_COUNTER = TrackEvent_Type_TYPE_COUNTER;
-  static constexpr auto Type_MIN = TrackEvent_Type_TYPE_UNSPECIFIED;
-  static constexpr auto Type_MAX = TrackEvent_Type_TYPE_COUNTER;
-  enum FieldNumbers {
-    kCategoryIidsFieldNumber = 3,
-    kCategoriesFieldNumber = 22,
-    kNameIidFieldNumber = 10,
-    kNameFieldNumber = 23,
-    kTypeFieldNumber = 9,
-    kTrackUuidFieldNumber = 11,
-    kCounterValueFieldNumber = 30,
-    kDoubleCounterValueFieldNumber = 44,
-    kExtraCounterTrackUuidsFieldNumber = 31,
-    kExtraCounterValuesFieldNumber = 12,
-    kExtraDoubleCounterTrackUuidsFieldNumber = 45,
-    kExtraDoubleCounterValuesFieldNumber = 46,
-    kFlowIdsFieldNumber = 36,
-    kTerminatingFlowIdsFieldNumber = 42,
-    kDebugAnnotationsFieldNumber = 4,
-    kTaskExecutionFieldNumber = 5,
-    kLogMessageFieldNumber = 21,
-    kCcSchedulerStateFieldNumber = 24,
-    kChromeUserEventFieldNumber = 25,
-    kChromeKeyedServiceFieldNumber = 26,
-    kChromeLegacyIpcFieldNumber = 27,
-    kChromeHistogramSampleFieldNumber = 28,
-    kChromeLatencyInfoFieldNumber = 29,
-    kChromeFrameReporterFieldNumber = 32,
-    kChromeApplicationStateInfoFieldNumber = 39,
-    kChromeRendererSchedulerStateFieldNumber = 40,
-    kChromeWindowHandleEventInfoFieldNumber = 41,
-    kChromeContentSettingsEventInfoFieldNumber = 43,
-    kSourceLocationFieldNumber = 33,
-    kSourceLocationIidFieldNumber = 34,
-    kChromeMessagePumpFieldNumber = 35,
-    kChromeMojoEventInfoFieldNumber = 38,
-    kTimestampDeltaUsFieldNumber = 1,
-    kTimestampAbsoluteUsFieldNumber = 16,
-    kThreadTimeDeltaUsFieldNumber = 2,
-    kThreadTimeAbsoluteUsFieldNumber = 17,
-    kThreadInstructionCountDeltaFieldNumber = 8,
-    kThreadInstructionCountAbsoluteFieldNumber = 20,
-    kLegacyEventFieldNumber = 6,
-  };
-
-  TrackEvent();
-  ~TrackEvent() override;
-  TrackEvent(TrackEvent&&) noexcept;
-  TrackEvent& operator=(TrackEvent&&);
-  TrackEvent(const TrackEvent&);
-  TrackEvent& operator=(const TrackEvent&);
-  bool operator==(const TrackEvent&) const;
-  bool operator!=(const TrackEvent& other) const { return !(*this == other); }
-
-  bool ParseFromArray(const void*, size_t) override;
-  std::string SerializeAsString() const override;
-  std::vector<uint8_t> SerializeAsArray() const override;
-  void Serialize(::protozero::Message*) const;
-
-  const std::vector<uint64_t>& category_iids() const { return category_iids_; }
-  std::vector<uint64_t>* mutable_category_iids() { return &category_iids_; }
-  int category_iids_size() const { return static_cast<int>(category_iids_.size()); }
-  void clear_category_iids() { category_iids_.clear(); }
-  void add_category_iids(uint64_t value) { category_iids_.emplace_back(value); }
-  uint64_t* add_category_iids() { category_iids_.emplace_back(); return &category_iids_.back(); }
-
-  const std::vector<std::string>& categories() const { return categories_; }
-  std::vector<std::string>* mutable_categories() { return &categories_; }
-  int categories_size() const { return static_cast<int>(categories_.size()); }
-  void clear_categories() { categories_.clear(); }
-  void add_categories(std::string value) { categories_.emplace_back(value); }
-  std::string* add_categories() { categories_.emplace_back(); return &categories_.back(); }
-
-  bool has_name_iid() const { return _has_field_[10]; }
-  uint64_t name_iid() const { return name_iid_; }
-  void set_name_iid(uint64_t value) { name_iid_ = value; _has_field_.set(10); }
-
-  bool has_name() const { return _has_field_[23]; }
-  const std::string& name() const { return name_; }
-  void set_name(const std::string& value) { name_ = value; _has_field_.set(23); }
-
-  bool has_type() const { return _has_field_[9]; }
-  TrackEvent_Type type() const { return type_; }
-  void set_type(TrackEvent_Type value) { type_ = value; _has_field_.set(9); }
-
-  bool has_track_uuid() const { return _has_field_[11]; }
-  uint64_t track_uuid() const { return track_uuid_; }
-  void set_track_uuid(uint64_t value) { track_uuid_ = value; _has_field_.set(11); }
-
-  bool has_counter_value() const { return _has_field_[30]; }
-  int64_t counter_value() const { return counter_value_; }
-  void set_counter_value(int64_t value) { counter_value_ = value; _has_field_.set(30); }
-
-  bool has_double_counter_value() const { return _has_field_[44]; }
-  double double_counter_value() const { return double_counter_value_; }
-  void set_double_counter_value(double value) { double_counter_value_ = value; _has_field_.set(44); }
-
-  const std::vector<uint64_t>& extra_counter_track_uuids() const { return extra_counter_track_uuids_; }
-  std::vector<uint64_t>* mutable_extra_counter_track_uuids() { return &extra_counter_track_uuids_; }
-  int extra_counter_track_uuids_size() const { return static_cast<int>(extra_counter_track_uuids_.size()); }
-  void clear_extra_counter_track_uuids() { extra_counter_track_uuids_.clear(); }
-  void add_extra_counter_track_uuids(uint64_t value) { extra_counter_track_uuids_.emplace_back(value); }
-  uint64_t* add_extra_counter_track_uuids() { extra_counter_track_uuids_.emplace_back(); return &extra_counter_track_uuids_.back(); }
-
-  const std::vector<int64_t>& extra_counter_values() const { return extra_counter_values_; }
-  std::vector<int64_t>* mutable_extra_counter_values() { return &extra_counter_values_; }
-  int extra_counter_values_size() const { return static_cast<int>(extra_counter_values_.size()); }
-  void clear_extra_counter_values() { extra_counter_values_.clear(); }
-  void add_extra_counter_values(int64_t value) { extra_counter_values_.emplace_back(value); }
-  int64_t* add_extra_counter_values() { extra_counter_values_.emplace_back(); return &extra_counter_values_.back(); }
-
-  const std::vector<uint64_t>& extra_double_counter_track_uuids() const { return extra_double_counter_track_uuids_; }
-  std::vector<uint64_t>* mutable_extra_double_counter_track_uuids() { return &extra_double_counter_track_uuids_; }
-  int extra_double_counter_track_uuids_size() const { return static_cast<int>(extra_double_counter_track_uuids_.size()); }
-  void clear_extra_double_counter_track_uuids() { extra_double_counter_track_uuids_.clear(); }
-  void add_extra_double_counter_track_uuids(uint64_t value) { extra_double_counter_track_uuids_.emplace_back(value); }
-  uint64_t* add_extra_double_counter_track_uuids() { extra_double_counter_track_uuids_.emplace_back(); return &extra_double_counter_track_uuids_.back(); }
-
-  const std::vector<double>& extra_double_counter_values() const { return extra_double_counter_values_; }
-  std::vector<double>* mutable_extra_double_counter_values() { return &extra_double_counter_values_; }
-  int extra_double_counter_values_size() const { return static_cast<int>(extra_double_counter_values_.size()); }
-  void clear_extra_double_counter_values() { extra_double_counter_values_.clear(); }
-  void add_extra_double_counter_values(double value) { extra_double_counter_values_.emplace_back(value); }
-  double* add_extra_double_counter_values() { extra_double_counter_values_.emplace_back(); return &extra_double_counter_values_.back(); }
-
-  const std::vector<uint64_t>& flow_ids() const { return flow_ids_; }
-  std::vector<uint64_t>* mutable_flow_ids() { return &flow_ids_; }
-  int flow_ids_size() const { return static_cast<int>(flow_ids_.size()); }
-  void clear_flow_ids() { flow_ids_.clear(); }
-  void add_flow_ids(uint64_t value) { flow_ids_.emplace_back(value); }
-  uint64_t* add_flow_ids() { flow_ids_.emplace_back(); return &flow_ids_.back(); }
-
-  const std::vector<uint64_t>& terminating_flow_ids() const { return terminating_flow_ids_; }
-  std::vector<uint64_t>* mutable_terminating_flow_ids() { return &terminating_flow_ids_; }
-  int terminating_flow_ids_size() const { return static_cast<int>(terminating_flow_ids_.size()); }
-  void clear_terminating_flow_ids() { terminating_flow_ids_.clear(); }
-  void add_terminating_flow_ids(uint64_t value) { terminating_flow_ids_.emplace_back(value); }
-  uint64_t* add_terminating_flow_ids() { terminating_flow_ids_.emplace_back(); return &terminating_flow_ids_.back(); }
-
-  const std::vector<DebugAnnotation>& debug_annotations() const { return debug_annotations_; }
-  std::vector<DebugAnnotation>* mutable_debug_annotations() { return &debug_annotations_; }
-  int debug_annotations_size() const;
-  void clear_debug_annotations();
-  DebugAnnotation* add_debug_annotations();
-
-  bool has_task_execution() const { return _has_field_[5]; }
-  const TaskExecution& task_execution() const { return *task_execution_; }
-  TaskExecution* mutable_task_execution() { _has_field_.set(5); return task_execution_.get(); }
-
-  bool has_log_message() const { return _has_field_[21]; }
-  const LogMessage& log_message() const { return *log_message_; }
-  LogMessage* mutable_log_message() { _has_field_.set(21); return log_message_.get(); }
-
-  bool has_cc_scheduler_state() const { return _has_field_[24]; }
-  const ChromeCompositorSchedulerState& cc_scheduler_state() const { return *cc_scheduler_state_; }
-  ChromeCompositorSchedulerState* mutable_cc_scheduler_state() { _has_field_.set(24); return cc_scheduler_state_.get(); }
-
-  bool has_chrome_user_event() const { return _has_field_[25]; }
-  const ChromeUserEvent& chrome_user_event() const { return *chrome_user_event_; }
-  ChromeUserEvent* mutable_chrome_user_event() { _has_field_.set(25); return chrome_user_event_.get(); }
-
-  bool has_chrome_keyed_service() const { return _has_field_[26]; }
-  const ChromeKeyedService& chrome_keyed_service() const { return *chrome_keyed_service_; }
-  ChromeKeyedService* mutable_chrome_keyed_service() { _has_field_.set(26); return chrome_keyed_service_.get(); }
-
-  bool has_chrome_legacy_ipc() const { return _has_field_[27]; }
-  const ChromeLegacyIpc& chrome_legacy_ipc() const { return *chrome_legacy_ipc_; }
-  ChromeLegacyIpc* mutable_chrome_legacy_ipc() { _has_field_.set(27); return chrome_legacy_ipc_.get(); }
-
-  bool has_chrome_histogram_sample() const { return _has_field_[28]; }
-  const ChromeHistogramSample& chrome_histogram_sample() const { return *chrome_histogram_sample_; }
-  ChromeHistogramSample* mutable_chrome_histogram_sample() { _has_field_.set(28); return chrome_histogram_sample_.get(); }
-
-  bool has_chrome_latency_info() const { return _has_field_[29]; }
-  const ChromeLatencyInfo& chrome_latency_info() const { return *chrome_latency_info_; }
-  ChromeLatencyInfo* mutable_chrome_latency_info() { _has_field_.set(29); return chrome_latency_info_.get(); }
-
-  bool has_chrome_frame_reporter() const { return _has_field_[32]; }
-  const ChromeFrameReporter& chrome_frame_reporter() const { return *chrome_frame_reporter_; }
-  ChromeFrameReporter* mutable_chrome_frame_reporter() { _has_field_.set(32); return chrome_frame_reporter_.get(); }
-
-  bool has_chrome_application_state_info() const { return _has_field_[39]; }
-  const ChromeApplicationStateInfo& chrome_application_state_info() const { return *chrome_application_state_info_; }
-  ChromeApplicationStateInfo* mutable_chrome_application_state_info() { _has_field_.set(39); return chrome_application_state_info_.get(); }
-
-  bool has_chrome_renderer_scheduler_state() const { return _has_field_[40]; }
-  const ChromeRendererSchedulerState& chrome_renderer_scheduler_state() const { return *chrome_renderer_scheduler_state_; }
-  ChromeRendererSchedulerState* mutable_chrome_renderer_scheduler_state() { _has_field_.set(40); return chrome_renderer_scheduler_state_.get(); }
-
-  bool has_chrome_window_handle_event_info() const { return _has_field_[41]; }
-  const ChromeWindowHandleEventInfo& chrome_window_handle_event_info() const { return *chrome_window_handle_event_info_; }
-  ChromeWindowHandleEventInfo* mutable_chrome_window_handle_event_info() { _has_field_.set(41); return chrome_window_handle_event_info_.get(); }
-
-  bool has_chrome_content_settings_event_info() const { return _has_field_[43]; }
-  const ChromeContentSettingsEventInfo& chrome_content_settings_event_info() const { return *chrome_content_settings_event_info_; }
-  ChromeContentSettingsEventInfo* mutable_chrome_content_settings_event_info() { _has_field_.set(43); return chrome_content_settings_event_info_.get(); }
-
-  bool has_source_location() const { return _has_field_[33]; }
-  const SourceLocation& source_location() const { return *source_location_; }
-  SourceLocation* mutable_source_location() { _has_field_.set(33); return source_location_.get(); }
-
-  bool has_source_location_iid() const { return _has_field_[34]; }
-  uint64_t source_location_iid() const { return source_location_iid_; }
-  void set_source_location_iid(uint64_t value) { source_location_iid_ = value; _has_field_.set(34); }
-
-  bool has_chrome_message_pump() const { return _has_field_[35]; }
-  const ChromeMessagePump& chrome_message_pump() const { return *chrome_message_pump_; }
-  ChromeMessagePump* mutable_chrome_message_pump() { _has_field_.set(35); return chrome_message_pump_.get(); }
-
-  bool has_chrome_mojo_event_info() const { return _has_field_[38]; }
-  const ChromeMojoEventInfo& chrome_mojo_event_info() const { return *chrome_mojo_event_info_; }
-  ChromeMojoEventInfo* mutable_chrome_mojo_event_info() { _has_field_.set(38); return chrome_mojo_event_info_.get(); }
-
-  bool has_timestamp_delta_us() const { return _has_field_[1]; }
-  int64_t timestamp_delta_us() const { return timestamp_delta_us_; }
-  void set_timestamp_delta_us(int64_t value) { timestamp_delta_us_ = value; _has_field_.set(1); }
-
-  bool has_timestamp_absolute_us() const { return _has_field_[16]; }
-  int64_t timestamp_absolute_us() const { return timestamp_absolute_us_; }
-  void set_timestamp_absolute_us(int64_t value) { timestamp_absolute_us_ = value; _has_field_.set(16); }
-
-  bool has_thread_time_delta_us() const { return _has_field_[2]; }
-  int64_t thread_time_delta_us() const { return thread_time_delta_us_; }
-  void set_thread_time_delta_us(int64_t value) { thread_time_delta_us_ = value; _has_field_.set(2); }
-
-  bool has_thread_time_absolute_us() const { return _has_field_[17]; }
-  int64_t thread_time_absolute_us() const { return thread_time_absolute_us_; }
-  void set_thread_time_absolute_us(int64_t value) { thread_time_absolute_us_ = value; _has_field_.set(17); }
-
-  bool has_thread_instruction_count_delta() const { return _has_field_[8]; }
-  int64_t thread_instruction_count_delta() const { return thread_instruction_count_delta_; }
-  void set_thread_instruction_count_delta(int64_t value) { thread_instruction_count_delta_ = value; _has_field_.set(8); }
-
-  bool has_thread_instruction_count_absolute() const { return _has_field_[20]; }
-  int64_t thread_instruction_count_absolute() const { return thread_instruction_count_absolute_; }
-  void set_thread_instruction_count_absolute(int64_t value) { thread_instruction_count_absolute_ = value; _has_field_.set(20); }
-
-  bool has_legacy_event() const { return _has_field_[6]; }
-  const TrackEvent_LegacyEvent& legacy_event() const { return *legacy_event_; }
-  TrackEvent_LegacyEvent* mutable_legacy_event() { _has_field_.set(6); return legacy_event_.get(); }
-
- private:
-  std::vector<uint64_t> category_iids_;
-  std::vector<std::string> categories_;
-  uint64_t name_iid_{};
-  std::string name_{};
-  TrackEvent_Type type_{};
-  uint64_t track_uuid_{};
-  int64_t counter_value_{};
-  double double_counter_value_{};
-  std::vector<uint64_t> extra_counter_track_uuids_;
-  std::vector<int64_t> extra_counter_values_;
-  std::vector<uint64_t> extra_double_counter_track_uuids_;
-  std::vector<double> extra_double_counter_values_;
-  std::vector<uint64_t> flow_ids_;
-  std::vector<uint64_t> terminating_flow_ids_;
-  std::vector<DebugAnnotation> debug_annotations_;
-  ::protozero::CopyablePtr<TaskExecution> task_execution_;
-  ::protozero::CopyablePtr<LogMessage> log_message_;
-  ::protozero::CopyablePtr<ChromeCompositorSchedulerState> cc_scheduler_state_;
-  ::protozero::CopyablePtr<ChromeUserEvent> chrome_user_event_;
-  ::protozero::CopyablePtr<ChromeKeyedService> chrome_keyed_service_;
-  ::protozero::CopyablePtr<ChromeLegacyIpc> chrome_legacy_ipc_;
-  ::protozero::CopyablePtr<ChromeHistogramSample> chrome_histogram_sample_;
-  ::protozero::CopyablePtr<ChromeLatencyInfo> chrome_latency_info_;
-  ::protozero::CopyablePtr<ChromeFrameReporter> chrome_frame_reporter_;
-  ::protozero::CopyablePtr<ChromeApplicationStateInfo> chrome_application_state_info_;
-  ::protozero::CopyablePtr<ChromeRendererSchedulerState> chrome_renderer_scheduler_state_;
-  ::protozero::CopyablePtr<ChromeWindowHandleEventInfo> chrome_window_handle_event_info_;
-  ::protozero::CopyablePtr<ChromeContentSettingsEventInfo> chrome_content_settings_event_info_;
-  ::protozero::CopyablePtr<SourceLocation> source_location_;
-  uint64_t source_location_iid_{};
-  ::protozero::CopyablePtr<ChromeMessagePump> chrome_message_pump_;
-  ::protozero::CopyablePtr<ChromeMojoEventInfo> chrome_mojo_event_info_;
-  int64_t timestamp_delta_us_{};
-  int64_t timestamp_absolute_us_{};
-  int64_t thread_time_delta_us_{};
-  int64_t thread_time_absolute_us_{};
-  int64_t thread_instruction_count_delta_{};
-  int64_t thread_instruction_count_absolute_{};
-  ::protozero::CopyablePtr<TrackEvent_LegacyEvent> legacy_event_;
-
-  // Allows to preserve unknown protobuf fields for compatibility
-  // with future versions of .proto files.
-  std::string unknown_fields_;
-
-  std::bitset<47> _has_field_{};
-};
-
-
-class PERFETTO_EXPORT TrackEvent_LegacyEvent : public ::protozero::CppMessageObj {
- public:
-  using FlowDirection = TrackEvent_LegacyEvent_FlowDirection;
-  static constexpr auto FLOW_UNSPECIFIED = TrackEvent_LegacyEvent_FlowDirection_FLOW_UNSPECIFIED;
-  static constexpr auto FLOW_IN = TrackEvent_LegacyEvent_FlowDirection_FLOW_IN;
-  static constexpr auto FLOW_OUT = TrackEvent_LegacyEvent_FlowDirection_FLOW_OUT;
-  static constexpr auto FLOW_INOUT = TrackEvent_LegacyEvent_FlowDirection_FLOW_INOUT;
-  static constexpr auto FlowDirection_MIN = TrackEvent_LegacyEvent_FlowDirection_FLOW_UNSPECIFIED;
-  static constexpr auto FlowDirection_MAX = TrackEvent_LegacyEvent_FlowDirection_FLOW_INOUT;
-  using InstantEventScope = TrackEvent_LegacyEvent_InstantEventScope;
-  static constexpr auto SCOPE_UNSPECIFIED = TrackEvent_LegacyEvent_InstantEventScope_SCOPE_UNSPECIFIED;
-  static constexpr auto SCOPE_GLOBAL = TrackEvent_LegacyEvent_InstantEventScope_SCOPE_GLOBAL;
-  static constexpr auto SCOPE_PROCESS = TrackEvent_LegacyEvent_InstantEventScope_SCOPE_PROCESS;
-  static constexpr auto SCOPE_THREAD = TrackEvent_LegacyEvent_InstantEventScope_SCOPE_THREAD;
-  static constexpr auto InstantEventScope_MIN = TrackEvent_LegacyEvent_InstantEventScope_SCOPE_UNSPECIFIED;
-  static constexpr auto InstantEventScope_MAX = TrackEvent_LegacyEvent_InstantEventScope_SCOPE_THREAD;
-  enum FieldNumbers {
-    kNameIidFieldNumber = 1,
-    kPhaseFieldNumber = 2,
-    kDurationUsFieldNumber = 3,
-    kThreadDurationUsFieldNumber = 4,
-    kThreadInstructionDeltaFieldNumber = 15,
-    kUnscopedIdFieldNumber = 6,
-    kLocalIdFieldNumber = 10,
-    kGlobalIdFieldNumber = 11,
-    kIdScopeFieldNumber = 7,
-    kUseAsyncTtsFieldNumber = 9,
-    kBindIdFieldNumber = 8,
-    kBindToEnclosingFieldNumber = 12,
-    kFlowDirectionFieldNumber = 13,
-    kInstantEventScopeFieldNumber = 14,
-    kPidOverrideFieldNumber = 18,
-    kTidOverrideFieldNumber = 19,
-  };
-
-  TrackEvent_LegacyEvent();
-  ~TrackEvent_LegacyEvent() override;
-  TrackEvent_LegacyEvent(TrackEvent_LegacyEvent&&) noexcept;
-  TrackEvent_LegacyEvent& operator=(TrackEvent_LegacyEvent&&);
-  TrackEvent_LegacyEvent(const TrackEvent_LegacyEvent&);
-  TrackEvent_LegacyEvent& operator=(const TrackEvent_LegacyEvent&);
-  bool operator==(const TrackEvent_LegacyEvent&) const;
-  bool operator!=(const TrackEvent_LegacyEvent& other) const { return !(*this == other); }
-
-  bool ParseFromArray(const void*, size_t) override;
-  std::string SerializeAsString() const override;
-  std::vector<uint8_t> SerializeAsArray() const override;
-  void Serialize(::protozero::Message*) const;
-
-  bool has_name_iid() const { return _has_field_[1]; }
-  uint64_t name_iid() const { return name_iid_; }
-  void set_name_iid(uint64_t value) { name_iid_ = value; _has_field_.set(1); }
-
-  bool has_phase() const { return _has_field_[2]; }
-  int32_t phase() const { return phase_; }
-  void set_phase(int32_t value) { phase_ = value; _has_field_.set(2); }
-
-  bool has_duration_us() const { return _has_field_[3]; }
-  int64_t duration_us() const { return duration_us_; }
-  void set_duration_us(int64_t value) { duration_us_ = value; _has_field_.set(3); }
-
-  bool has_thread_duration_us() const { return _has_field_[4]; }
-  int64_t thread_duration_us() const { return thread_duration_us_; }
-  void set_thread_duration_us(int64_t value) { thread_duration_us_ = value; _has_field_.set(4); }
-
-  bool has_thread_instruction_delta() const { return _has_field_[15]; }
-  int64_t thread_instruction_delta() const { return thread_instruction_delta_; }
-  void set_thread_instruction_delta(int64_t value) { thread_instruction_delta_ = value; _has_field_.set(15); }
-
-  bool has_unscoped_id() const { return _has_field_[6]; }
-  uint64_t unscoped_id() const { return unscoped_id_; }
-  void set_unscoped_id(uint64_t value) { unscoped_id_ = value; _has_field_.set(6); }
-
-  bool has_local_id() const { return _has_field_[10]; }
-  uint64_t local_id() const { return local_id_; }
-  void set_local_id(uint64_t value) { local_id_ = value; _has_field_.set(10); }
-
-  bool has_global_id() const { return _has_field_[11]; }
-  uint64_t global_id() const { return global_id_; }
-  void set_global_id(uint64_t value) { global_id_ = value; _has_field_.set(11); }
-
-  bool has_id_scope() const { return _has_field_[7]; }
-  const std::string& id_scope() const { return id_scope_; }
-  void set_id_scope(const std::string& value) { id_scope_ = value; _has_field_.set(7); }
-
-  bool has_use_async_tts() const { return _has_field_[9]; }
-  bool use_async_tts() const { return use_async_tts_; }
-  void set_use_async_tts(bool value) { use_async_tts_ = value; _has_field_.set(9); }
-
-  bool has_bind_id() const { return _has_field_[8]; }
-  uint64_t bind_id() const { return bind_id_; }
-  void set_bind_id(uint64_t value) { bind_id_ = value; _has_field_.set(8); }
-
-  bool has_bind_to_enclosing() const { return _has_field_[12]; }
-  bool bind_to_enclosing() const { return bind_to_enclosing_; }
-  void set_bind_to_enclosing(bool value) { bind_to_enclosing_ = value; _has_field_.set(12); }
-
-  bool has_flow_direction() const { return _has_field_[13]; }
-  TrackEvent_LegacyEvent_FlowDirection flow_direction() const { return flow_direction_; }
-  void set_flow_direction(TrackEvent_LegacyEvent_FlowDirection value) { flow_direction_ = value; _has_field_.set(13); }
-
-  bool has_instant_event_scope() const { return _has_field_[14]; }
-  TrackEvent_LegacyEvent_InstantEventScope instant_event_scope() const { return instant_event_scope_; }
-  void set_instant_event_scope(TrackEvent_LegacyEvent_InstantEventScope value) { instant_event_scope_ = value; _has_field_.set(14); }
-
-  bool has_pid_override() const { return _has_field_[18]; }
-  int32_t pid_override() const { return pid_override_; }
-  void set_pid_override(int32_t value) { pid_override_ = value; _has_field_.set(18); }
-
-  bool has_tid_override() const { return _has_field_[19]; }
-  int32_t tid_override() const { return tid_override_; }
-  void set_tid_override(int32_t value) { tid_override_ = value; _has_field_.set(19); }
-
- private:
-  uint64_t name_iid_{};
-  int32_t phase_{};
-  int64_t duration_us_{};
-  int64_t thread_duration_us_{};
-  int64_t thread_instruction_delta_{};
-  uint64_t unscoped_id_{};
-  uint64_t local_id_{};
-  uint64_t global_id_{};
-  std::string id_scope_{};
-  bool use_async_tts_{};
-  uint64_t bind_id_{};
-  bool bind_to_enclosing_{};
-  TrackEvent_LegacyEvent_FlowDirection flow_direction_{};
-  TrackEvent_LegacyEvent_InstantEventScope instant_event_scope_{};
-  int32_t pid_override_{};
-  int32_t tid_override_{};
-
-  // Allows to preserve unknown protobuf fields for compatibility
-  // with future versions of .proto files.
-  std::string unknown_fields_;
-
-  std::bitset<20> _has_field_{};
-};
-
-}  // namespace perfetto
-}  // namespace protos
-}  // namespace gen
-
-#endif  // PERFETTO_PROTOS_PROTOS_PERFETTO_TRACE_TRACK_EVENT_TRACK_EVENT_PROTO_CPP_H_
-// gen_amalgamated begin header: gen/protos/perfetto/config/android/android_log_config.gen.h
-// DO NOT EDIT. Autogenerated by Perfetto cppgen_plugin
-#ifndef PERFETTO_PROTOS_PROTOS_PERFETTO_CONFIG_ANDROID_ANDROID_LOG_CONFIG_PROTO_CPP_H_
-#define PERFETTO_PROTOS_PROTOS_PERFETTO_CONFIG_ANDROID_ANDROID_LOG_CONFIG_PROTO_CPP_H_
-
-#include <stdint.h>
-#include <bitset>
-#include <vector>
-#include <string>
-#include <type_traits>
-
-// gen_amalgamated expanded: #include "perfetto/protozero/cpp_message_obj.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/copyable_ptr.h"
-// gen_amalgamated expanded: #include "perfetto/base/export.h"
-
-namespace perfetto {
-namespace protos {
-namespace gen {
-class AndroidLogConfig;
-enum AndroidLogId : int;
-enum AndroidLogPriority : int;
-}  // namespace perfetto
-}  // namespace protos
-}  // namespace gen
-
-namespace protozero {
-class Message;
-}  // namespace protozero
-
-namespace perfetto {
-namespace protos {
-namespace gen {
-
-class PERFETTO_EXPORT AndroidLogConfig : public ::protozero::CppMessageObj {
- public:
-  enum FieldNumbers {
-    kLogIdsFieldNumber = 1,
-    kMinPrioFieldNumber = 3,
-    kFilterTagsFieldNumber = 4,
-  };
-
-  AndroidLogConfig();
-  ~AndroidLogConfig() override;
-  AndroidLogConfig(AndroidLogConfig&&) noexcept;
-  AndroidLogConfig& operator=(AndroidLogConfig&&);
-  AndroidLogConfig(const AndroidLogConfig&);
-  AndroidLogConfig& operator=(const AndroidLogConfig&);
-  bool operator==(const AndroidLogConfig&) const;
-  bool operator!=(const AndroidLogConfig& other) const { return !(*this == other); }
-
-  bool ParseFromArray(const void*, size_t) override;
-  std::string SerializeAsString() const override;
-  std::vector<uint8_t> SerializeAsArray() const override;
-  void Serialize(::protozero::Message*) const;
-
-  const std::vector<AndroidLogId>& log_ids() const { return log_ids_; }
-  std::vector<AndroidLogId>* mutable_log_ids() { return &log_ids_; }
-  int log_ids_size() const { return static_cast<int>(log_ids_.size()); }
-  void clear_log_ids() { log_ids_.clear(); }
-  void add_log_ids(AndroidLogId value) { log_ids_.emplace_back(value); }
-  AndroidLogId* add_log_ids() { log_ids_.emplace_back(); return &log_ids_.back(); }
-
-  bool has_min_prio() const { return _has_field_[3]; }
-  AndroidLogPriority min_prio() const { return min_prio_; }
-  void set_min_prio(AndroidLogPriority value) { min_prio_ = value; _has_field_.set(3); }
-
-  const std::vector<std::string>& filter_tags() const { return filter_tags_; }
-  std::vector<std::string>* mutable_filter_tags() { return &filter_tags_; }
-  int filter_tags_size() const { return static_cast<int>(filter_tags_.size()); }
-  void clear_filter_tags() { filter_tags_.clear(); }
-  void add_filter_tags(std::string value) { filter_tags_.emplace_back(value); }
-  std::string* add_filter_tags() { filter_tags_.emplace_back(); return &filter_tags_.back(); }
-
- private:
-  std::vector<AndroidLogId> log_ids_;
-  AndroidLogPriority min_prio_{};
-  std::vector<std::string> filter_tags_;
-
-  // Allows to preserve unknown protobuf fields for compatibility
-  // with future versions of .proto files.
-  std::string unknown_fields_;
-
-  std::bitset<5> _has_field_{};
-};
-
-}  // namespace perfetto
-}  // namespace protos
-}  // namespace gen
-
-#endif  // PERFETTO_PROTOS_PROTOS_PERFETTO_CONFIG_ANDROID_ANDROID_LOG_CONFIG_PROTO_CPP_H_
-// gen_amalgamated begin header: gen/protos/perfetto/config/android/android_polled_state_config.gen.h
-// DO NOT EDIT. Autogenerated by Perfetto cppgen_plugin
-#ifndef PERFETTO_PROTOS_PROTOS_PERFETTO_CONFIG_ANDROID_ANDROID_POLLED_STATE_CONFIG_PROTO_CPP_H_
-#define PERFETTO_PROTOS_PROTOS_PERFETTO_CONFIG_ANDROID_ANDROID_POLLED_STATE_CONFIG_PROTO_CPP_H_
-
-#include <stdint.h>
-#include <bitset>
-#include <vector>
-#include <string>
-#include <type_traits>
-
-// gen_amalgamated expanded: #include "perfetto/protozero/cpp_message_obj.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/copyable_ptr.h"
-// gen_amalgamated expanded: #include "perfetto/base/export.h"
-
-namespace perfetto {
-namespace protos {
-namespace gen {
-class AndroidPolledStateConfig;
-}  // namespace perfetto
-}  // namespace protos
-}  // namespace gen
-
-namespace protozero {
-class Message;
-}  // namespace protozero
-
-namespace perfetto {
-namespace protos {
-namespace gen {
-
-class PERFETTO_EXPORT AndroidPolledStateConfig : public ::protozero::CppMessageObj {
- public:
-  enum FieldNumbers {
-    kPollMsFieldNumber = 1,
-  };
-
-  AndroidPolledStateConfig();
-  ~AndroidPolledStateConfig() override;
-  AndroidPolledStateConfig(AndroidPolledStateConfig&&) noexcept;
-  AndroidPolledStateConfig& operator=(AndroidPolledStateConfig&&);
-  AndroidPolledStateConfig(const AndroidPolledStateConfig&);
-  AndroidPolledStateConfig& operator=(const AndroidPolledStateConfig&);
-  bool operator==(const AndroidPolledStateConfig&) const;
-  bool operator!=(const AndroidPolledStateConfig& other) const { return !(*this == other); }
-
-  bool ParseFromArray(const void*, size_t) override;
-  std::string SerializeAsString() const override;
-  std::vector<uint8_t> SerializeAsArray() const override;
-  void Serialize(::protozero::Message*) const;
-
-  bool has_poll_ms() const { return _has_field_[1]; }
-  uint32_t poll_ms() const { return poll_ms_; }
-  void set_poll_ms(uint32_t value) { poll_ms_ = value; _has_field_.set(1); }
-
- private:
-  uint32_t poll_ms_{};
-
-  // Allows to preserve unknown protobuf fields for compatibility
-  // with future versions of .proto files.
-  std::string unknown_fields_;
-
-  std::bitset<2> _has_field_{};
-};
-
-}  // namespace perfetto
-}  // namespace protos
-}  // namespace gen
-
-#endif  // PERFETTO_PROTOS_PROTOS_PERFETTO_CONFIG_ANDROID_ANDROID_POLLED_STATE_CONFIG_PROTO_CPP_H_
-// gen_amalgamated begin header: gen/protos/perfetto/config/android/packages_list_config.gen.h
-// DO NOT EDIT. Autogenerated by Perfetto cppgen_plugin
-#ifndef PERFETTO_PROTOS_PROTOS_PERFETTO_CONFIG_ANDROID_PACKAGES_LIST_CONFIG_PROTO_CPP_H_
-#define PERFETTO_PROTOS_PROTOS_PERFETTO_CONFIG_ANDROID_PACKAGES_LIST_CONFIG_PROTO_CPP_H_
-
-#include <stdint.h>
-#include <bitset>
-#include <vector>
-#include <string>
-#include <type_traits>
-
-// gen_amalgamated expanded: #include "perfetto/protozero/cpp_message_obj.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/copyable_ptr.h"
-// gen_amalgamated expanded: #include "perfetto/base/export.h"
-
-namespace perfetto {
-namespace protos {
-namespace gen {
-class PackagesListConfig;
-}  // namespace perfetto
-}  // namespace protos
-}  // namespace gen
-
-namespace protozero {
-class Message;
-}  // namespace protozero
-
-namespace perfetto {
-namespace protos {
-namespace gen {
-
-class PERFETTO_EXPORT PackagesListConfig : public ::protozero::CppMessageObj {
- public:
-  enum FieldNumbers {
-    kPackageNameFilterFieldNumber = 1,
-  };
-
-  PackagesListConfig();
-  ~PackagesListConfig() override;
-  PackagesListConfig(PackagesListConfig&&) noexcept;
-  PackagesListConfig& operator=(PackagesListConfig&&);
-  PackagesListConfig(const PackagesListConfig&);
-  PackagesListConfig& operator=(const PackagesListConfig&);
-  bool operator==(const PackagesListConfig&) const;
-  bool operator!=(const PackagesListConfig& other) const { return !(*this == other); }
-
-  bool ParseFromArray(const void*, size_t) override;
-  std::string SerializeAsString() const override;
-  std::vector<uint8_t> SerializeAsArray() const override;
-  void Serialize(::protozero::Message*) const;
-
-  const std::vector<std::string>& package_name_filter() const { return package_name_filter_; }
-  std::vector<std::string>* mutable_package_name_filter() { return &package_name_filter_; }
-  int package_name_filter_size() const { return static_cast<int>(package_name_filter_.size()); }
-  void clear_package_name_filter() { package_name_filter_.clear(); }
-  void add_package_name_filter(std::string value) { package_name_filter_.emplace_back(value); }
-  std::string* add_package_name_filter() { package_name_filter_.emplace_back(); return &package_name_filter_.back(); }
-
- private:
-  std::vector<std::string> package_name_filter_;
-
-  // Allows to preserve unknown protobuf fields for compatibility
-  // with future versions of .proto files.
-  std::string unknown_fields_;
-
-  std::bitset<2> _has_field_{};
-};
-
-}  // namespace perfetto
-}  // namespace protos
-}  // namespace gen
-
-#endif  // PERFETTO_PROTOS_PROTOS_PERFETTO_CONFIG_ANDROID_PACKAGES_LIST_CONFIG_PROTO_CPP_H_
-// gen_amalgamated begin header: gen/protos/perfetto/config/ftrace/ftrace_config.gen.h
-// DO NOT EDIT. Autogenerated by Perfetto cppgen_plugin
-#ifndef PERFETTO_PROTOS_PROTOS_PERFETTO_CONFIG_FTRACE_FTRACE_CONFIG_PROTO_CPP_H_
-#define PERFETTO_PROTOS_PROTOS_PERFETTO_CONFIG_FTRACE_FTRACE_CONFIG_PROTO_CPP_H_
-
-#include <stdint.h>
-#include <bitset>
-#include <vector>
-#include <string>
-#include <type_traits>
-
-// gen_amalgamated expanded: #include "perfetto/protozero/cpp_message_obj.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/copyable_ptr.h"
-// gen_amalgamated expanded: #include "perfetto/base/export.h"
-
-namespace perfetto {
-namespace protos {
-namespace gen {
-class FtraceConfig;
-class FtraceConfig_CompactSchedConfig;
-}  // namespace perfetto
-}  // namespace protos
-}  // namespace gen
-
-namespace protozero {
-class Message;
-}  // namespace protozero
-
-namespace perfetto {
-namespace protos {
-namespace gen {
-
-class PERFETTO_EXPORT FtraceConfig : public ::protozero::CppMessageObj {
- public:
-  using CompactSchedConfig = FtraceConfig_CompactSchedConfig;
-  enum FieldNumbers {
-    kFtraceEventsFieldNumber = 1,
-    kAtraceCategoriesFieldNumber = 2,
-    kAtraceAppsFieldNumber = 3,
-    kBufferSizeKbFieldNumber = 10,
-    kDrainPeriodMsFieldNumber = 11,
-    kCompactSchedFieldNumber = 12,
-    kSymbolizeKsymsFieldNumber = 13,
-    kInitializeKsymsSynchronouslyForTestingFieldNumber = 14,
-  };
-
-  FtraceConfig();
-  ~FtraceConfig() override;
-  FtraceConfig(FtraceConfig&&) noexcept;
-  FtraceConfig& operator=(FtraceConfig&&);
-  FtraceConfig(const FtraceConfig&);
-  FtraceConfig& operator=(const FtraceConfig&);
-  bool operator==(const FtraceConfig&) const;
-  bool operator!=(const FtraceConfig& other) const { return !(*this == other); }
-
-  bool ParseFromArray(const void*, size_t) override;
-  std::string SerializeAsString() const override;
-  std::vector<uint8_t> SerializeAsArray() const override;
-  void Serialize(::protozero::Message*) const;
-
-  const std::vector<std::string>& ftrace_events() const { return ftrace_events_; }
-  std::vector<std::string>* mutable_ftrace_events() { return &ftrace_events_; }
-  int ftrace_events_size() const { return static_cast<int>(ftrace_events_.size()); }
-  void clear_ftrace_events() { ftrace_events_.clear(); }
-  void add_ftrace_events(std::string value) { ftrace_events_.emplace_back(value); }
-  std::string* add_ftrace_events() { ftrace_events_.emplace_back(); return &ftrace_events_.back(); }
-
-  const std::vector<std::string>& atrace_categories() const { return atrace_categories_; }
-  std::vector<std::string>* mutable_atrace_categories() { return &atrace_categories_; }
-  int atrace_categories_size() const { return static_cast<int>(atrace_categories_.size()); }
-  void clear_atrace_categories() { atrace_categories_.clear(); }
-  void add_atrace_categories(std::string value) { atrace_categories_.emplace_back(value); }
-  std::string* add_atrace_categories() { atrace_categories_.emplace_back(); return &atrace_categories_.back(); }
-
-  const std::vector<std::string>& atrace_apps() const { return atrace_apps_; }
-  std::vector<std::string>* mutable_atrace_apps() { return &atrace_apps_; }
-  int atrace_apps_size() const { return static_cast<int>(atrace_apps_.size()); }
-  void clear_atrace_apps() { atrace_apps_.clear(); }
-  void add_atrace_apps(std::string value) { atrace_apps_.emplace_back(value); }
-  std::string* add_atrace_apps() { atrace_apps_.emplace_back(); return &atrace_apps_.back(); }
-
-  bool has_buffer_size_kb() const { return _has_field_[10]; }
-  uint32_t buffer_size_kb() const { return buffer_size_kb_; }
-  void set_buffer_size_kb(uint32_t value) { buffer_size_kb_ = value; _has_field_.set(10); }
-
-  bool has_drain_period_ms() const { return _has_field_[11]; }
-  uint32_t drain_period_ms() const { return drain_period_ms_; }
-  void set_drain_period_ms(uint32_t value) { drain_period_ms_ = value; _has_field_.set(11); }
-
-  bool has_compact_sched() const { return _has_field_[12]; }
-  const FtraceConfig_CompactSchedConfig& compact_sched() const { return *compact_sched_; }
-  FtraceConfig_CompactSchedConfig* mutable_compact_sched() { _has_field_.set(12); return compact_sched_.get(); }
-
-  bool has_symbolize_ksyms() const { return _has_field_[13]; }
-  bool symbolize_ksyms() const { return symbolize_ksyms_; }
-  void set_symbolize_ksyms(bool value) { symbolize_ksyms_ = value; _has_field_.set(13); }
-
-  bool has_initialize_ksyms_synchronously_for_testing() const { return _has_field_[14]; }
-  bool initialize_ksyms_synchronously_for_testing() const { return initialize_ksyms_synchronously_for_testing_; }
-  void set_initialize_ksyms_synchronously_for_testing(bool value) { initialize_ksyms_synchronously_for_testing_ = value; _has_field_.set(14); }
-
- private:
-  std::vector<std::string> ftrace_events_;
-  std::vector<std::string> atrace_categories_;
-  std::vector<std::string> atrace_apps_;
-  uint32_t buffer_size_kb_{};
-  uint32_t drain_period_ms_{};
-  ::protozero::CopyablePtr<FtraceConfig_CompactSchedConfig> compact_sched_;
-  bool symbolize_ksyms_{};
-  bool initialize_ksyms_synchronously_for_testing_{};
-
-  // Allows to preserve unknown protobuf fields for compatibility
-  // with future versions of .proto files.
-  std::string unknown_fields_;
-
-  std::bitset<15> _has_field_{};
-};
-
-
-class PERFETTO_EXPORT FtraceConfig_CompactSchedConfig : public ::protozero::CppMessageObj {
- public:
-  enum FieldNumbers {
-    kEnabledFieldNumber = 1,
-  };
-
-  FtraceConfig_CompactSchedConfig();
-  ~FtraceConfig_CompactSchedConfig() override;
-  FtraceConfig_CompactSchedConfig(FtraceConfig_CompactSchedConfig&&) noexcept;
-  FtraceConfig_CompactSchedConfig& operator=(FtraceConfig_CompactSchedConfig&&);
-  FtraceConfig_CompactSchedConfig(const FtraceConfig_CompactSchedConfig&);
-  FtraceConfig_CompactSchedConfig& operator=(const FtraceConfig_CompactSchedConfig&);
-  bool operator==(const FtraceConfig_CompactSchedConfig&) const;
-  bool operator!=(const FtraceConfig_CompactSchedConfig& other) const { return !(*this == other); }
-
-  bool ParseFromArray(const void*, size_t) override;
-  std::string SerializeAsString() const override;
-  std::vector<uint8_t> SerializeAsArray() const override;
-  void Serialize(::protozero::Message*) const;
-
-  bool has_enabled() const { return _has_field_[1]; }
-  bool enabled() const { return enabled_; }
-  void set_enabled(bool value) { enabled_ = value; _has_field_.set(1); }
-
- private:
-  bool enabled_{};
-
-  // Allows to preserve unknown protobuf fields for compatibility
-  // with future versions of .proto files.
-  std::string unknown_fields_;
-
-  std::bitset<2> _has_field_{};
-};
-
-}  // namespace perfetto
-}  // namespace protos
-}  // namespace gen
-
-#endif  // PERFETTO_PROTOS_PROTOS_PERFETTO_CONFIG_FTRACE_FTRACE_CONFIG_PROTO_CPP_H_
-// gen_amalgamated begin header: gen/protos/perfetto/config/gpu/gpu_counter_config.gen.h
-// DO NOT EDIT. Autogenerated by Perfetto cppgen_plugin
-#ifndef PERFETTO_PROTOS_PROTOS_PERFETTO_CONFIG_GPU_GPU_COUNTER_CONFIG_PROTO_CPP_H_
-#define PERFETTO_PROTOS_PROTOS_PERFETTO_CONFIG_GPU_GPU_COUNTER_CONFIG_PROTO_CPP_H_
-
-#include <stdint.h>
-#include <bitset>
-#include <vector>
-#include <string>
-#include <type_traits>
-
-// gen_amalgamated expanded: #include "perfetto/protozero/cpp_message_obj.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/copyable_ptr.h"
-// gen_amalgamated expanded: #include "perfetto/base/export.h"
-
-namespace perfetto {
-namespace protos {
-namespace gen {
-class GpuCounterConfig;
-}  // namespace perfetto
-}  // namespace protos
-}  // namespace gen
-
-namespace protozero {
-class Message;
-}  // namespace protozero
-
-namespace perfetto {
-namespace protos {
-namespace gen {
-
-class PERFETTO_EXPORT GpuCounterConfig : public ::protozero::CppMessageObj {
- public:
-  enum FieldNumbers {
-    kCounterPeriodNsFieldNumber = 1,
-    kCounterIdsFieldNumber = 2,
-    kInstrumentedSamplingFieldNumber = 3,
-    kFixGpuClockFieldNumber = 4,
-  };
-
-  GpuCounterConfig();
-  ~GpuCounterConfig() override;
-  GpuCounterConfig(GpuCounterConfig&&) noexcept;
-  GpuCounterConfig& operator=(GpuCounterConfig&&);
-  GpuCounterConfig(const GpuCounterConfig&);
-  GpuCounterConfig& operator=(const GpuCounterConfig&);
-  bool operator==(const GpuCounterConfig&) const;
-  bool operator!=(const GpuCounterConfig& other) const { return !(*this == other); }
-
-  bool ParseFromArray(const void*, size_t) override;
-  std::string SerializeAsString() const override;
-  std::vector<uint8_t> SerializeAsArray() const override;
-  void Serialize(::protozero::Message*) const;
-
-  bool has_counter_period_ns() const { return _has_field_[1]; }
-  uint64_t counter_period_ns() const { return counter_period_ns_; }
-  void set_counter_period_ns(uint64_t value) { counter_period_ns_ = value; _has_field_.set(1); }
-
-  const std::vector<uint32_t>& counter_ids() const { return counter_ids_; }
-  std::vector<uint32_t>* mutable_counter_ids() { return &counter_ids_; }
-  int counter_ids_size() const { return static_cast<int>(counter_ids_.size()); }
-  void clear_counter_ids() { counter_ids_.clear(); }
-  void add_counter_ids(uint32_t value) { counter_ids_.emplace_back(value); }
-  uint32_t* add_counter_ids() { counter_ids_.emplace_back(); return &counter_ids_.back(); }
-
-  bool has_instrumented_sampling() const { return _has_field_[3]; }
-  bool instrumented_sampling() const { return instrumented_sampling_; }
-  void set_instrumented_sampling(bool value) { instrumented_sampling_ = value; _has_field_.set(3); }
-
-  bool has_fix_gpu_clock() const { return _has_field_[4]; }
-  bool fix_gpu_clock() const { return fix_gpu_clock_; }
-  void set_fix_gpu_clock(bool value) { fix_gpu_clock_ = value; _has_field_.set(4); }
-
- private:
-  uint64_t counter_period_ns_{};
-  std::vector<uint32_t> counter_ids_;
-  bool instrumented_sampling_{};
-  bool fix_gpu_clock_{};
-
-  // Allows to preserve unknown protobuf fields for compatibility
-  // with future versions of .proto files.
-  std::string unknown_fields_;
-
-  std::bitset<5> _has_field_{};
-};
-
-}  // namespace perfetto
-}  // namespace protos
-}  // namespace gen
-
-#endif  // PERFETTO_PROTOS_PROTOS_PERFETTO_CONFIG_GPU_GPU_COUNTER_CONFIG_PROTO_CPP_H_
-// gen_amalgamated begin header: gen/protos/perfetto/config/gpu/vulkan_memory_config.gen.h
-// DO NOT EDIT. Autogenerated by Perfetto cppgen_plugin
-#ifndef PERFETTO_PROTOS_PROTOS_PERFETTO_CONFIG_GPU_VULKAN_MEMORY_CONFIG_PROTO_CPP_H_
-#define PERFETTO_PROTOS_PROTOS_PERFETTO_CONFIG_GPU_VULKAN_MEMORY_CONFIG_PROTO_CPP_H_
-
-#include <stdint.h>
-#include <bitset>
-#include <vector>
-#include <string>
-#include <type_traits>
-
-// gen_amalgamated expanded: #include "perfetto/protozero/cpp_message_obj.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/copyable_ptr.h"
-// gen_amalgamated expanded: #include "perfetto/base/export.h"
-
-namespace perfetto {
-namespace protos {
-namespace gen {
-class VulkanMemoryConfig;
-}  // namespace perfetto
-}  // namespace protos
-}  // namespace gen
-
-namespace protozero {
-class Message;
-}  // namespace protozero
-
-namespace perfetto {
-namespace protos {
-namespace gen {
-
-class PERFETTO_EXPORT VulkanMemoryConfig : public ::protozero::CppMessageObj {
- public:
-  enum FieldNumbers {
-    kTrackDriverMemoryUsageFieldNumber = 1,
-    kTrackDeviceMemoryUsageFieldNumber = 2,
-  };
-
-  VulkanMemoryConfig();
-  ~VulkanMemoryConfig() override;
-  VulkanMemoryConfig(VulkanMemoryConfig&&) noexcept;
-  VulkanMemoryConfig& operator=(VulkanMemoryConfig&&);
-  VulkanMemoryConfig(const VulkanMemoryConfig&);
-  VulkanMemoryConfig& operator=(const VulkanMemoryConfig&);
-  bool operator==(const VulkanMemoryConfig&) const;
-  bool operator!=(const VulkanMemoryConfig& other) const { return !(*this == other); }
-
-  bool ParseFromArray(const void*, size_t) override;
-  std::string SerializeAsString() const override;
-  std::vector<uint8_t> SerializeAsArray() const override;
-  void Serialize(::protozero::Message*) const;
-
-  bool has_track_driver_memory_usage() const { return _has_field_[1]; }
-  bool track_driver_memory_usage() const { return track_driver_memory_usage_; }
-  void set_track_driver_memory_usage(bool value) { track_driver_memory_usage_ = value; _has_field_.set(1); }
-
-  bool has_track_device_memory_usage() const { return _has_field_[2]; }
-  bool track_device_memory_usage() const { return track_device_memory_usage_; }
-  void set_track_device_memory_usage(bool value) { track_device_memory_usage_ = value; _has_field_.set(2); }
-
- private:
-  bool track_driver_memory_usage_{};
-  bool track_device_memory_usage_{};
-
-  // Allows to preserve unknown protobuf fields for compatibility
-  // with future versions of .proto files.
-  std::string unknown_fields_;
-
-  std::bitset<3> _has_field_{};
-};
-
-}  // namespace perfetto
-}  // namespace protos
-}  // namespace gen
-
-#endif  // PERFETTO_PROTOS_PROTOS_PERFETTO_CONFIG_GPU_VULKAN_MEMORY_CONFIG_PROTO_CPP_H_
-// gen_amalgamated begin header: gen/protos/perfetto/config/inode_file/inode_file_config.gen.h
-// DO NOT EDIT. Autogenerated by Perfetto cppgen_plugin
-#ifndef PERFETTO_PROTOS_PROTOS_PERFETTO_CONFIG_INODE_FILE_INODE_FILE_CONFIG_PROTO_CPP_H_
-#define PERFETTO_PROTOS_PROTOS_PERFETTO_CONFIG_INODE_FILE_INODE_FILE_CONFIG_PROTO_CPP_H_
-
-#include <stdint.h>
-#include <bitset>
-#include <vector>
-#include <string>
-#include <type_traits>
-
-// gen_amalgamated expanded: #include "perfetto/protozero/cpp_message_obj.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/copyable_ptr.h"
-// gen_amalgamated expanded: #include "perfetto/base/export.h"
-
-namespace perfetto {
-namespace protos {
-namespace gen {
-class InodeFileConfig;
-class InodeFileConfig_MountPointMappingEntry;
-}  // namespace perfetto
-}  // namespace protos
-}  // namespace gen
-
-namespace protozero {
-class Message;
-}  // namespace protozero
-
-namespace perfetto {
-namespace protos {
-namespace gen {
-
-class PERFETTO_EXPORT InodeFileConfig : public ::protozero::CppMessageObj {
- public:
-  using MountPointMappingEntry = InodeFileConfig_MountPointMappingEntry;
-  enum FieldNumbers {
-    kScanIntervalMsFieldNumber = 1,
-    kScanDelayMsFieldNumber = 2,
-    kScanBatchSizeFieldNumber = 3,
-    kDoNotScanFieldNumber = 4,
-    kScanMountPointsFieldNumber = 5,
-    kMountPointMappingFieldNumber = 6,
-  };
-
-  InodeFileConfig();
-  ~InodeFileConfig() override;
-  InodeFileConfig(InodeFileConfig&&) noexcept;
-  InodeFileConfig& operator=(InodeFileConfig&&);
-  InodeFileConfig(const InodeFileConfig&);
-  InodeFileConfig& operator=(const InodeFileConfig&);
-  bool operator==(const InodeFileConfig&) const;
-  bool operator!=(const InodeFileConfig& other) const { return !(*this == other); }
-
-  bool ParseFromArray(const void*, size_t) override;
-  std::string SerializeAsString() const override;
-  std::vector<uint8_t> SerializeAsArray() const override;
-  void Serialize(::protozero::Message*) const;
-
-  bool has_scan_interval_ms() const { return _has_field_[1]; }
-  uint32_t scan_interval_ms() const { return scan_interval_ms_; }
-  void set_scan_interval_ms(uint32_t value) { scan_interval_ms_ = value; _has_field_.set(1); }
-
-  bool has_scan_delay_ms() const { return _has_field_[2]; }
-  uint32_t scan_delay_ms() const { return scan_delay_ms_; }
-  void set_scan_delay_ms(uint32_t value) { scan_delay_ms_ = value; _has_field_.set(2); }
-
-  bool has_scan_batch_size() const { return _has_field_[3]; }
-  uint32_t scan_batch_size() const { return scan_batch_size_; }
-  void set_scan_batch_size(uint32_t value) { scan_batch_size_ = value; _has_field_.set(3); }
-
-  bool has_do_not_scan() const { return _has_field_[4]; }
-  bool do_not_scan() const { return do_not_scan_; }
-  void set_do_not_scan(bool value) { do_not_scan_ = value; _has_field_.set(4); }
-
-  const std::vector<std::string>& scan_mount_points() const { return scan_mount_points_; }
-  std::vector<std::string>* mutable_scan_mount_points() { return &scan_mount_points_; }
-  int scan_mount_points_size() const { return static_cast<int>(scan_mount_points_.size()); }
-  void clear_scan_mount_points() { scan_mount_points_.clear(); }
-  void add_scan_mount_points(std::string value) { scan_mount_points_.emplace_back(value); }
-  std::string* add_scan_mount_points() { scan_mount_points_.emplace_back(); return &scan_mount_points_.back(); }
-
-  const std::vector<InodeFileConfig_MountPointMappingEntry>& mount_point_mapping() const { return mount_point_mapping_; }
-  std::vector<InodeFileConfig_MountPointMappingEntry>* mutable_mount_point_mapping() { return &mount_point_mapping_; }
-  int mount_point_mapping_size() const;
-  void clear_mount_point_mapping();
-  InodeFileConfig_MountPointMappingEntry* add_mount_point_mapping();
-
- private:
-  uint32_t scan_interval_ms_{};
-  uint32_t scan_delay_ms_{};
-  uint32_t scan_batch_size_{};
-  bool do_not_scan_{};
-  std::vector<std::string> scan_mount_points_;
-  std::vector<InodeFileConfig_MountPointMappingEntry> mount_point_mapping_;
-
-  // Allows to preserve unknown protobuf fields for compatibility
-  // with future versions of .proto files.
-  std::string unknown_fields_;
-
-  std::bitset<7> _has_field_{};
-};
-
-
-class PERFETTO_EXPORT InodeFileConfig_MountPointMappingEntry : public ::protozero::CppMessageObj {
- public:
-  enum FieldNumbers {
-    kMountpointFieldNumber = 1,
-    kScanRootsFieldNumber = 2,
-  };
-
-  InodeFileConfig_MountPointMappingEntry();
-  ~InodeFileConfig_MountPointMappingEntry() override;
-  InodeFileConfig_MountPointMappingEntry(InodeFileConfig_MountPointMappingEntry&&) noexcept;
-  InodeFileConfig_MountPointMappingEntry& operator=(InodeFileConfig_MountPointMappingEntry&&);
-  InodeFileConfig_MountPointMappingEntry(const InodeFileConfig_MountPointMappingEntry&);
-  InodeFileConfig_MountPointMappingEntry& operator=(const InodeFileConfig_MountPointMappingEntry&);
-  bool operator==(const InodeFileConfig_MountPointMappingEntry&) const;
-  bool operator!=(const InodeFileConfig_MountPointMappingEntry& other) const { return !(*this == other); }
-
-  bool ParseFromArray(const void*, size_t) override;
-  std::string SerializeAsString() const override;
-  std::vector<uint8_t> SerializeAsArray() const override;
-  void Serialize(::protozero::Message*) const;
-
-  bool has_mountpoint() const { return _has_field_[1]; }
-  const std::string& mountpoint() const { return mountpoint_; }
-  void set_mountpoint(const std::string& value) { mountpoint_ = value; _has_field_.set(1); }
-
-  const std::vector<std::string>& scan_roots() const { return scan_roots_; }
-  std::vector<std::string>* mutable_scan_roots() { return &scan_roots_; }
-  int scan_roots_size() const { return static_cast<int>(scan_roots_.size()); }
-  void clear_scan_roots() { scan_roots_.clear(); }
-  void add_scan_roots(std::string value) { scan_roots_.emplace_back(value); }
-  std::string* add_scan_roots() { scan_roots_.emplace_back(); return &scan_roots_.back(); }
-
- private:
-  std::string mountpoint_{};
-  std::vector<std::string> scan_roots_;
-
-  // Allows to preserve unknown protobuf fields for compatibility
-  // with future versions of .proto files.
-  std::string unknown_fields_;
-
-  std::bitset<3> _has_field_{};
-};
-
-}  // namespace perfetto
-}  // namespace protos
-}  // namespace gen
-
-#endif  // PERFETTO_PROTOS_PROTOS_PERFETTO_CONFIG_INODE_FILE_INODE_FILE_CONFIG_PROTO_CPP_H_
-// gen_amalgamated begin header: gen/protos/perfetto/config/interceptors/console_config.gen.h
-// DO NOT EDIT. Autogenerated by Perfetto cppgen_plugin
-#ifndef PERFETTO_PROTOS_PROTOS_PERFETTO_CONFIG_INTERCEPTORS_CONSOLE_CONFIG_PROTO_CPP_H_
-#define PERFETTO_PROTOS_PROTOS_PERFETTO_CONFIG_INTERCEPTORS_CONSOLE_CONFIG_PROTO_CPP_H_
-
-#include <stdint.h>
-#include <bitset>
-#include <vector>
-#include <string>
-#include <type_traits>
-
-// gen_amalgamated expanded: #include "perfetto/protozero/cpp_message_obj.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/copyable_ptr.h"
-// gen_amalgamated expanded: #include "perfetto/base/export.h"
-
-namespace perfetto {
-namespace protos {
-namespace gen {
-class ConsoleConfig;
-enum ConsoleConfig_Output : int;
-}  // namespace perfetto
-}  // namespace protos
-}  // namespace gen
-
-namespace protozero {
-class Message;
-}  // namespace protozero
-
-namespace perfetto {
-namespace protos {
-namespace gen {
-enum ConsoleConfig_Output : int {
-  ConsoleConfig_Output_OUTPUT_UNSPECIFIED = 0,
-  ConsoleConfig_Output_OUTPUT_STDOUT = 1,
-  ConsoleConfig_Output_OUTPUT_STDERR = 2,
-};
-
-class PERFETTO_EXPORT ConsoleConfig : public ::protozero::CppMessageObj {
- public:
-  using Output = ConsoleConfig_Output;
-  static constexpr auto OUTPUT_UNSPECIFIED = ConsoleConfig_Output_OUTPUT_UNSPECIFIED;
-  static constexpr auto OUTPUT_STDOUT = ConsoleConfig_Output_OUTPUT_STDOUT;
-  static constexpr auto OUTPUT_STDERR = ConsoleConfig_Output_OUTPUT_STDERR;
-  static constexpr auto Output_MIN = ConsoleConfig_Output_OUTPUT_UNSPECIFIED;
-  static constexpr auto Output_MAX = ConsoleConfig_Output_OUTPUT_STDERR;
-  enum FieldNumbers {
-    kOutputFieldNumber = 1,
-    kEnableColorsFieldNumber = 2,
-  };
-
-  ConsoleConfig();
-  ~ConsoleConfig() override;
-  ConsoleConfig(ConsoleConfig&&) noexcept;
-  ConsoleConfig& operator=(ConsoleConfig&&);
-  ConsoleConfig(const ConsoleConfig&);
-  ConsoleConfig& operator=(const ConsoleConfig&);
-  bool operator==(const ConsoleConfig&) const;
-  bool operator!=(const ConsoleConfig& other) const { return !(*this == other); }
-
-  bool ParseFromArray(const void*, size_t) override;
-  std::string SerializeAsString() const override;
-  std::vector<uint8_t> SerializeAsArray() const override;
-  void Serialize(::protozero::Message*) const;
-
-  bool has_output() const { return _has_field_[1]; }
-  ConsoleConfig_Output output() const { return output_; }
-  void set_output(ConsoleConfig_Output value) { output_ = value; _has_field_.set(1); }
-
-  bool has_enable_colors() const { return _has_field_[2]; }
-  bool enable_colors() const { return enable_colors_; }
-  void set_enable_colors(bool value) { enable_colors_ = value; _has_field_.set(2); }
-
- private:
-  ConsoleConfig_Output output_{};
-  bool enable_colors_{};
-
-  // Allows to preserve unknown protobuf fields for compatibility
-  // with future versions of .proto files.
-  std::string unknown_fields_;
-
-  std::bitset<3> _has_field_{};
-};
-
-}  // namespace perfetto
-}  // namespace protos
-}  // namespace gen
-
-#endif  // PERFETTO_PROTOS_PROTOS_PERFETTO_CONFIG_INTERCEPTORS_CONSOLE_CONFIG_PROTO_CPP_H_
-// gen_amalgamated begin header: gen/protos/perfetto/config/power/android_power_config.gen.h
-// DO NOT EDIT. Autogenerated by Perfetto cppgen_plugin
-#ifndef PERFETTO_PROTOS_PROTOS_PERFETTO_CONFIG_POWER_ANDROID_POWER_CONFIG_PROTO_CPP_H_
-#define PERFETTO_PROTOS_PROTOS_PERFETTO_CONFIG_POWER_ANDROID_POWER_CONFIG_PROTO_CPP_H_
-
-#include <stdint.h>
-#include <bitset>
-#include <vector>
-#include <string>
-#include <type_traits>
-
-// gen_amalgamated expanded: #include "perfetto/protozero/cpp_message_obj.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/copyable_ptr.h"
-// gen_amalgamated expanded: #include "perfetto/base/export.h"
-
-namespace perfetto {
-namespace protos {
-namespace gen {
-class AndroidPowerConfig;
-enum AndroidPowerConfig_BatteryCounters : int;
-}  // namespace perfetto
-}  // namespace protos
-}  // namespace gen
-
-namespace protozero {
-class Message;
-}  // namespace protozero
-
-namespace perfetto {
-namespace protos {
-namespace gen {
-enum AndroidPowerConfig_BatteryCounters : int {
-  AndroidPowerConfig_BatteryCounters_BATTERY_COUNTER_UNSPECIFIED = 0,
-  AndroidPowerConfig_BatteryCounters_BATTERY_COUNTER_CHARGE = 1,
-  AndroidPowerConfig_BatteryCounters_BATTERY_COUNTER_CAPACITY_PERCENT = 2,
-  AndroidPowerConfig_BatteryCounters_BATTERY_COUNTER_CURRENT = 3,
-  AndroidPowerConfig_BatteryCounters_BATTERY_COUNTER_CURRENT_AVG = 4,
-};
-
-class PERFETTO_EXPORT AndroidPowerConfig : public ::protozero::CppMessageObj {
- public:
-  using BatteryCounters = AndroidPowerConfig_BatteryCounters;
-  static constexpr auto BATTERY_COUNTER_UNSPECIFIED = AndroidPowerConfig_BatteryCounters_BATTERY_COUNTER_UNSPECIFIED;
-  static constexpr auto BATTERY_COUNTER_CHARGE = AndroidPowerConfig_BatteryCounters_BATTERY_COUNTER_CHARGE;
-  static constexpr auto BATTERY_COUNTER_CAPACITY_PERCENT = AndroidPowerConfig_BatteryCounters_BATTERY_COUNTER_CAPACITY_PERCENT;
-  static constexpr auto BATTERY_COUNTER_CURRENT = AndroidPowerConfig_BatteryCounters_BATTERY_COUNTER_CURRENT;
-  static constexpr auto BATTERY_COUNTER_CURRENT_AVG = AndroidPowerConfig_BatteryCounters_BATTERY_COUNTER_CURRENT_AVG;
-  static constexpr auto BatteryCounters_MIN = AndroidPowerConfig_BatteryCounters_BATTERY_COUNTER_UNSPECIFIED;
-  static constexpr auto BatteryCounters_MAX = AndroidPowerConfig_BatteryCounters_BATTERY_COUNTER_CURRENT_AVG;
-  enum FieldNumbers {
-    kBatteryPollMsFieldNumber = 1,
-    kBatteryCountersFieldNumber = 2,
-    kCollectPowerRailsFieldNumber = 3,
-    kCollectEnergyEstimationBreakdownFieldNumber = 4,
-  };
-
-  AndroidPowerConfig();
-  ~AndroidPowerConfig() override;
-  AndroidPowerConfig(AndroidPowerConfig&&) noexcept;
-  AndroidPowerConfig& operator=(AndroidPowerConfig&&);
-  AndroidPowerConfig(const AndroidPowerConfig&);
-  AndroidPowerConfig& operator=(const AndroidPowerConfig&);
-  bool operator==(const AndroidPowerConfig&) const;
-  bool operator!=(const AndroidPowerConfig& other) const { return !(*this == other); }
-
-  bool ParseFromArray(const void*, size_t) override;
-  std::string SerializeAsString() const override;
-  std::vector<uint8_t> SerializeAsArray() const override;
-  void Serialize(::protozero::Message*) const;
-
-  bool has_battery_poll_ms() const { return _has_field_[1]; }
-  uint32_t battery_poll_ms() const { return battery_poll_ms_; }
-  void set_battery_poll_ms(uint32_t value) { battery_poll_ms_ = value; _has_field_.set(1); }
-
-  const std::vector<AndroidPowerConfig_BatteryCounters>& battery_counters() const { return battery_counters_; }
-  std::vector<AndroidPowerConfig_BatteryCounters>* mutable_battery_counters() { return &battery_counters_; }
-  int battery_counters_size() const { return static_cast<int>(battery_counters_.size()); }
-  void clear_battery_counters() { battery_counters_.clear(); }
-  void add_battery_counters(AndroidPowerConfig_BatteryCounters value) { battery_counters_.emplace_back(value); }
-  AndroidPowerConfig_BatteryCounters* add_battery_counters() { battery_counters_.emplace_back(); return &battery_counters_.back(); }
-
-  bool has_collect_power_rails() const { return _has_field_[3]; }
-  bool collect_power_rails() const { return collect_power_rails_; }
-  void set_collect_power_rails(bool value) { collect_power_rails_ = value; _has_field_.set(3); }
-
-  bool has_collect_energy_estimation_breakdown() const { return _has_field_[4]; }
-  bool collect_energy_estimation_breakdown() const { return collect_energy_estimation_breakdown_; }
-  void set_collect_energy_estimation_breakdown(bool value) { collect_energy_estimation_breakdown_ = value; _has_field_.set(4); }
-
- private:
-  uint32_t battery_poll_ms_{};
-  std::vector<AndroidPowerConfig_BatteryCounters> battery_counters_;
-  bool collect_power_rails_{};
-  bool collect_energy_estimation_breakdown_{};
-
-  // Allows to preserve unknown protobuf fields for compatibility
-  // with future versions of .proto files.
-  std::string unknown_fields_;
-
-  std::bitset<5> _has_field_{};
-};
-
-}  // namespace perfetto
-}  // namespace protos
-}  // namespace gen
-
-#endif  // PERFETTO_PROTOS_PROTOS_PERFETTO_CONFIG_POWER_ANDROID_POWER_CONFIG_PROTO_CPP_H_
-// gen_amalgamated begin header: gen/protos/perfetto/config/process_stats/process_stats_config.gen.h
-// DO NOT EDIT. Autogenerated by Perfetto cppgen_plugin
-#ifndef PERFETTO_PROTOS_PROTOS_PERFETTO_CONFIG_PROCESS_STATS_PROCESS_STATS_CONFIG_PROTO_CPP_H_
-#define PERFETTO_PROTOS_PROTOS_PERFETTO_CONFIG_PROCESS_STATS_PROCESS_STATS_CONFIG_PROTO_CPP_H_
-
-#include <stdint.h>
-#include <bitset>
-#include <vector>
-#include <string>
-#include <type_traits>
-
-// gen_amalgamated expanded: #include "perfetto/protozero/cpp_message_obj.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/copyable_ptr.h"
-// gen_amalgamated expanded: #include "perfetto/base/export.h"
-
-namespace perfetto {
-namespace protos {
-namespace gen {
-class ProcessStatsConfig;
-enum ProcessStatsConfig_Quirks : int;
-}  // namespace perfetto
-}  // namespace protos
-}  // namespace gen
-
-namespace protozero {
-class Message;
-}  // namespace protozero
-
-namespace perfetto {
-namespace protos {
-namespace gen {
-enum ProcessStatsConfig_Quirks : int {
-  ProcessStatsConfig_Quirks_QUIRKS_UNSPECIFIED = 0,
-  ProcessStatsConfig_Quirks_DISABLE_INITIAL_DUMP = 1,
-  ProcessStatsConfig_Quirks_DISABLE_ON_DEMAND = 2,
-};
-
-class PERFETTO_EXPORT ProcessStatsConfig : public ::protozero::CppMessageObj {
- public:
-  using Quirks = ProcessStatsConfig_Quirks;
-  static constexpr auto QUIRKS_UNSPECIFIED = ProcessStatsConfig_Quirks_QUIRKS_UNSPECIFIED;
-  static constexpr auto DISABLE_INITIAL_DUMP = ProcessStatsConfig_Quirks_DISABLE_INITIAL_DUMP;
-  static constexpr auto DISABLE_ON_DEMAND = ProcessStatsConfig_Quirks_DISABLE_ON_DEMAND;
-  static constexpr auto Quirks_MIN = ProcessStatsConfig_Quirks_QUIRKS_UNSPECIFIED;
-  static constexpr auto Quirks_MAX = ProcessStatsConfig_Quirks_DISABLE_ON_DEMAND;
-  enum FieldNumbers {
-    kQuirksFieldNumber = 1,
-    kScanAllProcessesOnStartFieldNumber = 2,
-    kRecordThreadNamesFieldNumber = 3,
-    kProcStatsPollMsFieldNumber = 4,
-    kProcStatsCacheTtlMsFieldNumber = 6,
-    kRecordThreadTimeInStateFieldNumber = 7,
-    kThreadTimeInStateCacheSizeFieldNumber = 8,
-  };
-
-  ProcessStatsConfig();
-  ~ProcessStatsConfig() override;
-  ProcessStatsConfig(ProcessStatsConfig&&) noexcept;
-  ProcessStatsConfig& operator=(ProcessStatsConfig&&);
-  ProcessStatsConfig(const ProcessStatsConfig&);
-  ProcessStatsConfig& operator=(const ProcessStatsConfig&);
-  bool operator==(const ProcessStatsConfig&) const;
-  bool operator!=(const ProcessStatsConfig& other) const { return !(*this == other); }
-
-  bool ParseFromArray(const void*, size_t) override;
-  std::string SerializeAsString() const override;
-  std::vector<uint8_t> SerializeAsArray() const override;
-  void Serialize(::protozero::Message*) const;
-
-  const std::vector<ProcessStatsConfig_Quirks>& quirks() const { return quirks_; }
-  std::vector<ProcessStatsConfig_Quirks>* mutable_quirks() { return &quirks_; }
-  int quirks_size() const { return static_cast<int>(quirks_.size()); }
-  void clear_quirks() { quirks_.clear(); }
-  void add_quirks(ProcessStatsConfig_Quirks value) { quirks_.emplace_back(value); }
-  ProcessStatsConfig_Quirks* add_quirks() { quirks_.emplace_back(); return &quirks_.back(); }
-
-  bool has_scan_all_processes_on_start() const { return _has_field_[2]; }
-  bool scan_all_processes_on_start() const { return scan_all_processes_on_start_; }
-  void set_scan_all_processes_on_start(bool value) { scan_all_processes_on_start_ = value; _has_field_.set(2); }
-
-  bool has_record_thread_names() const { return _has_field_[3]; }
-  bool record_thread_names() const { return record_thread_names_; }
-  void set_record_thread_names(bool value) { record_thread_names_ = value; _has_field_.set(3); }
-
-  bool has_proc_stats_poll_ms() const { return _has_field_[4]; }
-  uint32_t proc_stats_poll_ms() const { return proc_stats_poll_ms_; }
-  void set_proc_stats_poll_ms(uint32_t value) { proc_stats_poll_ms_ = value; _has_field_.set(4); }
-
-  bool has_proc_stats_cache_ttl_ms() const { return _has_field_[6]; }
-  uint32_t proc_stats_cache_ttl_ms() const { return proc_stats_cache_ttl_ms_; }
-  void set_proc_stats_cache_ttl_ms(uint32_t value) { proc_stats_cache_ttl_ms_ = value; _has_field_.set(6); }
-
-  bool has_record_thread_time_in_state() const { return _has_field_[7]; }
-  bool record_thread_time_in_state() const { return record_thread_time_in_state_; }
-  void set_record_thread_time_in_state(bool value) { record_thread_time_in_state_ = value; _has_field_.set(7); }
-
-  bool has_thread_time_in_state_cache_size() const { return _has_field_[8]; }
-  uint32_t thread_time_in_state_cache_size() const { return thread_time_in_state_cache_size_; }
-  void set_thread_time_in_state_cache_size(uint32_t value) { thread_time_in_state_cache_size_ = value; _has_field_.set(8); }
-
- private:
-  std::vector<ProcessStatsConfig_Quirks> quirks_;
-  bool scan_all_processes_on_start_{};
-  bool record_thread_names_{};
-  uint32_t proc_stats_poll_ms_{};
-  uint32_t proc_stats_cache_ttl_ms_{};
-  bool record_thread_time_in_state_{};
-  uint32_t thread_time_in_state_cache_size_{};
-
-  // Allows to preserve unknown protobuf fields for compatibility
-  // with future versions of .proto files.
-  std::string unknown_fields_;
-
-  std::bitset<9> _has_field_{};
-};
-
-}  // namespace perfetto
-}  // namespace protos
-}  // namespace gen
-
-#endif  // PERFETTO_PROTOS_PROTOS_PERFETTO_CONFIG_PROCESS_STATS_PROCESS_STATS_CONFIG_PROTO_CPP_H_
-// gen_amalgamated begin header: gen/protos/perfetto/config/profiling/heapprofd_config.gen.h
-// DO NOT EDIT. Autogenerated by Perfetto cppgen_plugin
-#ifndef PERFETTO_PROTOS_PROTOS_PERFETTO_CONFIG_PROFILING_HEAPPROFD_CONFIG_PROTO_CPP_H_
-#define PERFETTO_PROTOS_PROTOS_PERFETTO_CONFIG_PROFILING_HEAPPROFD_CONFIG_PROTO_CPP_H_
-
-#include <stdint.h>
-#include <bitset>
-#include <vector>
-#include <string>
-#include <type_traits>
-
-// gen_amalgamated expanded: #include "perfetto/protozero/cpp_message_obj.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/copyable_ptr.h"
-// gen_amalgamated expanded: #include "perfetto/base/export.h"
-
-namespace perfetto {
-namespace protos {
-namespace gen {
-class HeapprofdConfig;
-class HeapprofdConfig_ContinuousDumpConfig;
-}  // namespace perfetto
-}  // namespace protos
-}  // namespace gen
-
-namespace protozero {
-class Message;
-}  // namespace protozero
-
-namespace perfetto {
-namespace protos {
-namespace gen {
-
-class PERFETTO_EXPORT HeapprofdConfig : public ::protozero::CppMessageObj {
- public:
-  using ContinuousDumpConfig = HeapprofdConfig_ContinuousDumpConfig;
-  enum FieldNumbers {
-    kSamplingIntervalBytesFieldNumber = 1,
-    kAdaptiveSamplingShmemThresholdFieldNumber = 24,
-    kAdaptiveSamplingMaxSamplingIntervalBytesFieldNumber = 25,
-    kProcessCmdlineFieldNumber = 2,
-    kPidFieldNumber = 4,
-    kTargetInstalledByFieldNumber = 26,
-    kHeapsFieldNumber = 20,
-    kExcludeHeapsFieldNumber = 27,
-    kStreamAllocationsFieldNumber = 23,
-    kHeapSamplingIntervalsFieldNumber = 22,
-    kAllHeapsFieldNumber = 21,
-    kAllFieldNumber = 5,
-    kMinAnonymousMemoryKbFieldNumber = 15,
-    kMaxHeapprofdMemoryKbFieldNumber = 16,
-    kMaxHeapprofdCpuSecsFieldNumber = 17,
-    kSkipSymbolPrefixFieldNumber = 7,
-    kContinuousDumpConfigFieldNumber = 6,
-    kShmemSizeBytesFieldNumber = 8,
-    kBlockClientFieldNumber = 9,
-    kBlockClientTimeoutUsFieldNumber = 14,
-    kNoStartupFieldNumber = 10,
-    kNoRunningFieldNumber = 11,
-    kDumpAtMaxFieldNumber = 13,
-    kDisableForkTeardownFieldNumber = 18,
-    kDisableVforkDetectionFieldNumber = 19,
-  };
-
-  HeapprofdConfig();
-  ~HeapprofdConfig() override;
-  HeapprofdConfig(HeapprofdConfig&&) noexcept;
-  HeapprofdConfig& operator=(HeapprofdConfig&&);
-  HeapprofdConfig(const HeapprofdConfig&);
-  HeapprofdConfig& operator=(const HeapprofdConfig&);
-  bool operator==(const HeapprofdConfig&) const;
-  bool operator!=(const HeapprofdConfig& other) const { return !(*this == other); }
-
-  bool ParseFromArray(const void*, size_t) override;
-  std::string SerializeAsString() const override;
-  std::vector<uint8_t> SerializeAsArray() const override;
-  void Serialize(::protozero::Message*) const;
-
-  bool has_sampling_interval_bytes() const { return _has_field_[1]; }
-  uint64_t sampling_interval_bytes() const { return sampling_interval_bytes_; }
-  void set_sampling_interval_bytes(uint64_t value) { sampling_interval_bytes_ = value; _has_field_.set(1); }
-
-  bool has_adaptive_sampling_shmem_threshold() const { return _has_field_[24]; }
-  uint64_t adaptive_sampling_shmem_threshold() const { return adaptive_sampling_shmem_threshold_; }
-  void set_adaptive_sampling_shmem_threshold(uint64_t value) { adaptive_sampling_shmem_threshold_ = value; _has_field_.set(24); }
-
-  bool has_adaptive_sampling_max_sampling_interval_bytes() const { return _has_field_[25]; }
-  uint64_t adaptive_sampling_max_sampling_interval_bytes() const { return adaptive_sampling_max_sampling_interval_bytes_; }
-  void set_adaptive_sampling_max_sampling_interval_bytes(uint64_t value) { adaptive_sampling_max_sampling_interval_bytes_ = value; _has_field_.set(25); }
-
-  const std::vector<std::string>& process_cmdline() const { return process_cmdline_; }
-  std::vector<std::string>* mutable_process_cmdline() { return &process_cmdline_; }
-  int process_cmdline_size() const { return static_cast<int>(process_cmdline_.size()); }
-  void clear_process_cmdline() { process_cmdline_.clear(); }
-  void add_process_cmdline(std::string value) { process_cmdline_.emplace_back(value); }
-  std::string* add_process_cmdline() { process_cmdline_.emplace_back(); return &process_cmdline_.back(); }
-
-  const std::vector<uint64_t>& pid() const { return pid_; }
-  std::vector<uint64_t>* mutable_pid() { return &pid_; }
-  int pid_size() const { return static_cast<int>(pid_.size()); }
-  void clear_pid() { pid_.clear(); }
-  void add_pid(uint64_t value) { pid_.emplace_back(value); }
-  uint64_t* add_pid() { pid_.emplace_back(); return &pid_.back(); }
-
-  const std::vector<std::string>& target_installed_by() const { return target_installed_by_; }
-  std::vector<std::string>* mutable_target_installed_by() { return &target_installed_by_; }
-  int target_installed_by_size() const { return static_cast<int>(target_installed_by_.size()); }
-  void clear_target_installed_by() { target_installed_by_.clear(); }
-  void add_target_installed_by(std::string value) { target_installed_by_.emplace_back(value); }
-  std::string* add_target_installed_by() { target_installed_by_.emplace_back(); return &target_installed_by_.back(); }
-
-  const std::vector<std::string>& heaps() const { return heaps_; }
-  std::vector<std::string>* mutable_heaps() { return &heaps_; }
-  int heaps_size() const { return static_cast<int>(heaps_.size()); }
-  void clear_heaps() { heaps_.clear(); }
-  void add_heaps(std::string value) { heaps_.emplace_back(value); }
-  std::string* add_heaps() { heaps_.emplace_back(); return &heaps_.back(); }
-
-  const std::vector<std::string>& exclude_heaps() const { return exclude_heaps_; }
-  std::vector<std::string>* mutable_exclude_heaps() { return &exclude_heaps_; }
-  int exclude_heaps_size() const { return static_cast<int>(exclude_heaps_.size()); }
-  void clear_exclude_heaps() { exclude_heaps_.clear(); }
-  void add_exclude_heaps(std::string value) { exclude_heaps_.emplace_back(value); }
-  std::string* add_exclude_heaps() { exclude_heaps_.emplace_back(); return &exclude_heaps_.back(); }
-
-  bool has_stream_allocations() const { return _has_field_[23]; }
-  bool stream_allocations() const { return stream_allocations_; }
-  void set_stream_allocations(bool value) { stream_allocations_ = value; _has_field_.set(23); }
-
-  const std::vector<uint64_t>& heap_sampling_intervals() const { return heap_sampling_intervals_; }
-  std::vector<uint64_t>* mutable_heap_sampling_intervals() { return &heap_sampling_intervals_; }
-  int heap_sampling_intervals_size() const { return static_cast<int>(heap_sampling_intervals_.size()); }
-  void clear_heap_sampling_intervals() { heap_sampling_intervals_.clear(); }
-  void add_heap_sampling_intervals(uint64_t value) { heap_sampling_intervals_.emplace_back(value); }
-  uint64_t* add_heap_sampling_intervals() { heap_sampling_intervals_.emplace_back(); return &heap_sampling_intervals_.back(); }
-
-  bool has_all_heaps() const { return _has_field_[21]; }
-  bool all_heaps() const { return all_heaps_; }
-  void set_all_heaps(bool value) { all_heaps_ = value; _has_field_.set(21); }
-
-  bool has_all() const { return _has_field_[5]; }
-  bool all() const { return all_; }
-  void set_all(bool value) { all_ = value; _has_field_.set(5); }
-
-  bool has_min_anonymous_memory_kb() const { return _has_field_[15]; }
-  uint32_t min_anonymous_memory_kb() const { return min_anonymous_memory_kb_; }
-  void set_min_anonymous_memory_kb(uint32_t value) { min_anonymous_memory_kb_ = value; _has_field_.set(15); }
-
-  bool has_max_heapprofd_memory_kb() const { return _has_field_[16]; }
-  uint32_t max_heapprofd_memory_kb() const { return max_heapprofd_memory_kb_; }
-  void set_max_heapprofd_memory_kb(uint32_t value) { max_heapprofd_memory_kb_ = value; _has_field_.set(16); }
-
-  bool has_max_heapprofd_cpu_secs() const { return _has_field_[17]; }
-  uint64_t max_heapprofd_cpu_secs() const { return max_heapprofd_cpu_secs_; }
-  void set_max_heapprofd_cpu_secs(uint64_t value) { max_heapprofd_cpu_secs_ = value; _has_field_.set(17); }
-
-  const std::vector<std::string>& skip_symbol_prefix() const { return skip_symbol_prefix_; }
-  std::vector<std::string>* mutable_skip_symbol_prefix() { return &skip_symbol_prefix_; }
-  int skip_symbol_prefix_size() const { return static_cast<int>(skip_symbol_prefix_.size()); }
-  void clear_skip_symbol_prefix() { skip_symbol_prefix_.clear(); }
-  void add_skip_symbol_prefix(std::string value) { skip_symbol_prefix_.emplace_back(value); }
-  std::string* add_skip_symbol_prefix() { skip_symbol_prefix_.emplace_back(); return &skip_symbol_prefix_.back(); }
-
-  bool has_continuous_dump_config() const { return _has_field_[6]; }
-  const HeapprofdConfig_ContinuousDumpConfig& continuous_dump_config() const { return *continuous_dump_config_; }
-  HeapprofdConfig_ContinuousDumpConfig* mutable_continuous_dump_config() { _has_field_.set(6); return continuous_dump_config_.get(); }
-
-  bool has_shmem_size_bytes() const { return _has_field_[8]; }
-  uint64_t shmem_size_bytes() const { return shmem_size_bytes_; }
-  void set_shmem_size_bytes(uint64_t value) { shmem_size_bytes_ = value; _has_field_.set(8); }
-
-  bool has_block_client() const { return _has_field_[9]; }
-  bool block_client() const { return block_client_; }
-  void set_block_client(bool value) { block_client_ = value; _has_field_.set(9); }
-
-  bool has_block_client_timeout_us() const { return _has_field_[14]; }
-  uint32_t block_client_timeout_us() const { return block_client_timeout_us_; }
-  void set_block_client_timeout_us(uint32_t value) { block_client_timeout_us_ = value; _has_field_.set(14); }
-
-  bool has_no_startup() const { return _has_field_[10]; }
-  bool no_startup() const { return no_startup_; }
-  void set_no_startup(bool value) { no_startup_ = value; _has_field_.set(10); }
-
-  bool has_no_running() const { return _has_field_[11]; }
-  bool no_running() const { return no_running_; }
-  void set_no_running(bool value) { no_running_ = value; _has_field_.set(11); }
-
-  bool has_dump_at_max() const { return _has_field_[13]; }
-  bool dump_at_max() const { return dump_at_max_; }
-  void set_dump_at_max(bool value) { dump_at_max_ = value; _has_field_.set(13); }
-
-  bool has_disable_fork_teardown() const { return _has_field_[18]; }
-  bool disable_fork_teardown() const { return disable_fork_teardown_; }
-  void set_disable_fork_teardown(bool value) { disable_fork_teardown_ = value; _has_field_.set(18); }
-
-  bool has_disable_vfork_detection() const { return _has_field_[19]; }
-  bool disable_vfork_detection() const { return disable_vfork_detection_; }
-  void set_disable_vfork_detection(bool value) { disable_vfork_detection_ = value; _has_field_.set(19); }
-
- private:
-  uint64_t sampling_interval_bytes_{};
-  uint64_t adaptive_sampling_shmem_threshold_{};
-  uint64_t adaptive_sampling_max_sampling_interval_bytes_{};
-  std::vector<std::string> process_cmdline_;
-  std::vector<uint64_t> pid_;
-  std::vector<std::string> target_installed_by_;
-  std::vector<std::string> heaps_;
-  std::vector<std::string> exclude_heaps_;
-  bool stream_allocations_{};
-  std::vector<uint64_t> heap_sampling_intervals_;
-  bool all_heaps_{};
-  bool all_{};
-  uint32_t min_anonymous_memory_kb_{};
-  uint32_t max_heapprofd_memory_kb_{};
-  uint64_t max_heapprofd_cpu_secs_{};
-  std::vector<std::string> skip_symbol_prefix_;
-  ::protozero::CopyablePtr<HeapprofdConfig_ContinuousDumpConfig> continuous_dump_config_;
-  uint64_t shmem_size_bytes_{};
-  bool block_client_{};
-  uint32_t block_client_timeout_us_{};
-  bool no_startup_{};
-  bool no_running_{};
-  bool dump_at_max_{};
-  bool disable_fork_teardown_{};
-  bool disable_vfork_detection_{};
-
-  // Allows to preserve unknown protobuf fields for compatibility
-  // with future versions of .proto files.
-  std::string unknown_fields_;
-
-  std::bitset<28> _has_field_{};
-};
-
-
-class PERFETTO_EXPORT HeapprofdConfig_ContinuousDumpConfig : public ::protozero::CppMessageObj {
- public:
-  enum FieldNumbers {
-    kDumpPhaseMsFieldNumber = 5,
-    kDumpIntervalMsFieldNumber = 6,
-  };
-
-  HeapprofdConfig_ContinuousDumpConfig();
-  ~HeapprofdConfig_ContinuousDumpConfig() override;
-  HeapprofdConfig_ContinuousDumpConfig(HeapprofdConfig_ContinuousDumpConfig&&) noexcept;
-  HeapprofdConfig_ContinuousDumpConfig& operator=(HeapprofdConfig_ContinuousDumpConfig&&);
-  HeapprofdConfig_ContinuousDumpConfig(const HeapprofdConfig_ContinuousDumpConfig&);
-  HeapprofdConfig_ContinuousDumpConfig& operator=(const HeapprofdConfig_ContinuousDumpConfig&);
-  bool operator==(const HeapprofdConfig_ContinuousDumpConfig&) const;
-  bool operator!=(const HeapprofdConfig_ContinuousDumpConfig& other) const { return !(*this == other); }
-
-  bool ParseFromArray(const void*, size_t) override;
-  std::string SerializeAsString() const override;
-  std::vector<uint8_t> SerializeAsArray() const override;
-  void Serialize(::protozero::Message*) const;
-
-  bool has_dump_phase_ms() const { return _has_field_[5]; }
-  uint32_t dump_phase_ms() const { return dump_phase_ms_; }
-  void set_dump_phase_ms(uint32_t value) { dump_phase_ms_ = value; _has_field_.set(5); }
-
-  bool has_dump_interval_ms() const { return _has_field_[6]; }
-  uint32_t dump_interval_ms() const { return dump_interval_ms_; }
-  void set_dump_interval_ms(uint32_t value) { dump_interval_ms_ = value; _has_field_.set(6); }
-
- private:
-  uint32_t dump_phase_ms_{};
-  uint32_t dump_interval_ms_{};
-
-  // Allows to preserve unknown protobuf fields for compatibility
-  // with future versions of .proto files.
-  std::string unknown_fields_;
-
-  std::bitset<7> _has_field_{};
-};
-
-}  // namespace perfetto
-}  // namespace protos
-}  // namespace gen
-
-#endif  // PERFETTO_PROTOS_PROTOS_PERFETTO_CONFIG_PROFILING_HEAPPROFD_CONFIG_PROTO_CPP_H_
-// gen_amalgamated begin header: gen/protos/perfetto/config/profiling/java_hprof_config.gen.h
-// DO NOT EDIT. Autogenerated by Perfetto cppgen_plugin
-#ifndef PERFETTO_PROTOS_PROTOS_PERFETTO_CONFIG_PROFILING_JAVA_HPROF_CONFIG_PROTO_CPP_H_
-#define PERFETTO_PROTOS_PROTOS_PERFETTO_CONFIG_PROFILING_JAVA_HPROF_CONFIG_PROTO_CPP_H_
-
-#include <stdint.h>
-#include <bitset>
-#include <vector>
-#include <string>
-#include <type_traits>
-
-// gen_amalgamated expanded: #include "perfetto/protozero/cpp_message_obj.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/copyable_ptr.h"
-// gen_amalgamated expanded: #include "perfetto/base/export.h"
-
-namespace perfetto {
-namespace protos {
-namespace gen {
-class JavaHprofConfig;
-class JavaHprofConfig_ContinuousDumpConfig;
-}  // namespace perfetto
-}  // namespace protos
-}  // namespace gen
-
-namespace protozero {
-class Message;
-}  // namespace protozero
-
-namespace perfetto {
-namespace protos {
-namespace gen {
-
-class PERFETTO_EXPORT JavaHprofConfig : public ::protozero::CppMessageObj {
- public:
-  using ContinuousDumpConfig = JavaHprofConfig_ContinuousDumpConfig;
-  enum FieldNumbers {
-    kProcessCmdlineFieldNumber = 1,
-    kPidFieldNumber = 2,
-    kTargetInstalledByFieldNumber = 7,
-    kContinuousDumpConfigFieldNumber = 3,
-    kMinAnonymousMemoryKbFieldNumber = 4,
-    kDumpSmapsFieldNumber = 5,
-    kIgnoredTypesFieldNumber = 6,
-  };
-
-  JavaHprofConfig();
-  ~JavaHprofConfig() override;
-  JavaHprofConfig(JavaHprofConfig&&) noexcept;
-  JavaHprofConfig& operator=(JavaHprofConfig&&);
-  JavaHprofConfig(const JavaHprofConfig&);
-  JavaHprofConfig& operator=(const JavaHprofConfig&);
-  bool operator==(const JavaHprofConfig&) const;
-  bool operator!=(const JavaHprofConfig& other) const { return !(*this == other); }
-
-  bool ParseFromArray(const void*, size_t) override;
-  std::string SerializeAsString() const override;
-  std::vector<uint8_t> SerializeAsArray() const override;
-  void Serialize(::protozero::Message*) const;
-
-  const std::vector<std::string>& process_cmdline() const { return process_cmdline_; }
-  std::vector<std::string>* mutable_process_cmdline() { return &process_cmdline_; }
-  int process_cmdline_size() const { return static_cast<int>(process_cmdline_.size()); }
-  void clear_process_cmdline() { process_cmdline_.clear(); }
-  void add_process_cmdline(std::string value) { process_cmdline_.emplace_back(value); }
-  std::string* add_process_cmdline() { process_cmdline_.emplace_back(); return &process_cmdline_.back(); }
-
-  const std::vector<uint64_t>& pid() const { return pid_; }
-  std::vector<uint64_t>* mutable_pid() { return &pid_; }
-  int pid_size() const { return static_cast<int>(pid_.size()); }
-  void clear_pid() { pid_.clear(); }
-  void add_pid(uint64_t value) { pid_.emplace_back(value); }
-  uint64_t* add_pid() { pid_.emplace_back(); return &pid_.back(); }
-
-  const std::vector<std::string>& target_installed_by() const { return target_installed_by_; }
-  std::vector<std::string>* mutable_target_installed_by() { return &target_installed_by_; }
-  int target_installed_by_size() const { return static_cast<int>(target_installed_by_.size()); }
-  void clear_target_installed_by() { target_installed_by_.clear(); }
-  void add_target_installed_by(std::string value) { target_installed_by_.emplace_back(value); }
-  std::string* add_target_installed_by() { target_installed_by_.emplace_back(); return &target_installed_by_.back(); }
-
-  bool has_continuous_dump_config() const { return _has_field_[3]; }
-  const JavaHprofConfig_ContinuousDumpConfig& continuous_dump_config() const { return *continuous_dump_config_; }
-  JavaHprofConfig_ContinuousDumpConfig* mutable_continuous_dump_config() { _has_field_.set(3); return continuous_dump_config_.get(); }
-
-  bool has_min_anonymous_memory_kb() const { return _has_field_[4]; }
-  uint32_t min_anonymous_memory_kb() const { return min_anonymous_memory_kb_; }
-  void set_min_anonymous_memory_kb(uint32_t value) { min_anonymous_memory_kb_ = value; _has_field_.set(4); }
-
-  bool has_dump_smaps() const { return _has_field_[5]; }
-  bool dump_smaps() const { return dump_smaps_; }
-  void set_dump_smaps(bool value) { dump_smaps_ = value; _has_field_.set(5); }
-
-  const std::vector<std::string>& ignored_types() const { return ignored_types_; }
-  std::vector<std::string>* mutable_ignored_types() { return &ignored_types_; }
-  int ignored_types_size() const { return static_cast<int>(ignored_types_.size()); }
-  void clear_ignored_types() { ignored_types_.clear(); }
-  void add_ignored_types(std::string value) { ignored_types_.emplace_back(value); }
-  std::string* add_ignored_types() { ignored_types_.emplace_back(); return &ignored_types_.back(); }
-
- private:
-  std::vector<std::string> process_cmdline_;
-  std::vector<uint64_t> pid_;
-  std::vector<std::string> target_installed_by_;
-  ::protozero::CopyablePtr<JavaHprofConfig_ContinuousDumpConfig> continuous_dump_config_;
-  uint32_t min_anonymous_memory_kb_{};
-  bool dump_smaps_{};
-  std::vector<std::string> ignored_types_;
-
-  // Allows to preserve unknown protobuf fields for compatibility
-  // with future versions of .proto files.
-  std::string unknown_fields_;
-
-  std::bitset<8> _has_field_{};
-};
-
-
-class PERFETTO_EXPORT JavaHprofConfig_ContinuousDumpConfig : public ::protozero::CppMessageObj {
- public:
-  enum FieldNumbers {
-    kDumpPhaseMsFieldNumber = 1,
-    kDumpIntervalMsFieldNumber = 2,
-  };
-
-  JavaHprofConfig_ContinuousDumpConfig();
-  ~JavaHprofConfig_ContinuousDumpConfig() override;
-  JavaHprofConfig_ContinuousDumpConfig(JavaHprofConfig_ContinuousDumpConfig&&) noexcept;
-  JavaHprofConfig_ContinuousDumpConfig& operator=(JavaHprofConfig_ContinuousDumpConfig&&);
-  JavaHprofConfig_ContinuousDumpConfig(const JavaHprofConfig_ContinuousDumpConfig&);
-  JavaHprofConfig_ContinuousDumpConfig& operator=(const JavaHprofConfig_ContinuousDumpConfig&);
-  bool operator==(const JavaHprofConfig_ContinuousDumpConfig&) const;
-  bool operator!=(const JavaHprofConfig_ContinuousDumpConfig& other) const { return !(*this == other); }
-
-  bool ParseFromArray(const void*, size_t) override;
-  std::string SerializeAsString() const override;
-  std::vector<uint8_t> SerializeAsArray() const override;
-  void Serialize(::protozero::Message*) const;
-
-  bool has_dump_phase_ms() const { return _has_field_[1]; }
-  uint32_t dump_phase_ms() const { return dump_phase_ms_; }
-  void set_dump_phase_ms(uint32_t value) { dump_phase_ms_ = value; _has_field_.set(1); }
-
-  bool has_dump_interval_ms() const { return _has_field_[2]; }
-  uint32_t dump_interval_ms() const { return dump_interval_ms_; }
-  void set_dump_interval_ms(uint32_t value) { dump_interval_ms_ = value; _has_field_.set(2); }
-
- private:
-  uint32_t dump_phase_ms_{};
-  uint32_t dump_interval_ms_{};
-
-  // Allows to preserve unknown protobuf fields for compatibility
-  // with future versions of .proto files.
-  std::string unknown_fields_;
-
-  std::bitset<3> _has_field_{};
-};
-
-}  // namespace perfetto
-}  // namespace protos
-}  // namespace gen
-
-#endif  // PERFETTO_PROTOS_PROTOS_PERFETTO_CONFIG_PROFILING_JAVA_HPROF_CONFIG_PROTO_CPP_H_
-// gen_amalgamated begin header: gen/protos/perfetto/config/profiling/perf_event_config.gen.h
-// DO NOT EDIT. Autogenerated by Perfetto cppgen_plugin
-#ifndef PERFETTO_PROTOS_PROTOS_PERFETTO_CONFIG_PROFILING_PERF_EVENT_CONFIG_PROTO_CPP_H_
-#define PERFETTO_PROTOS_PROTOS_PERFETTO_CONFIG_PROFILING_PERF_EVENT_CONFIG_PROTO_CPP_H_
-
-#include <stdint.h>
-#include <bitset>
-#include <vector>
-#include <string>
-#include <type_traits>
-
-// gen_amalgamated expanded: #include "perfetto/protozero/cpp_message_obj.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/copyable_ptr.h"
-// gen_amalgamated expanded: #include "perfetto/base/export.h"
-
-namespace perfetto {
-namespace protos {
-namespace gen {
-class PerfEventConfig;
-class PerfEventConfig_CallstackSampling;
-class PerfEventConfig_Scope;
-class PerfEvents_Timebase;
-class PerfEvents_Tracepoint;
-enum PerfEvents_Counter : int;
-}  // namespace perfetto
-}  // namespace protos
-}  // namespace gen
-
-namespace protozero {
-class Message;
-}  // namespace protozero
-
-namespace perfetto {
-namespace protos {
-namespace gen {
-
-class PERFETTO_EXPORT PerfEventConfig : public ::protozero::CppMessageObj {
- public:
-  using CallstackSampling = PerfEventConfig_CallstackSampling;
-  using Scope = PerfEventConfig_Scope;
-  enum FieldNumbers {
-    kTimebaseFieldNumber = 15,
-    kCallstackSamplingFieldNumber = 16,
-    kRingBufferReadPeriodMsFieldNumber = 8,
-    kRingBufferPagesFieldNumber = 3,
-    kMaxEnqueuedFootprintKbFieldNumber = 17,
-    kMaxDaemonMemoryKbFieldNumber = 13,
-    kRemoteDescriptorTimeoutMsFieldNumber = 9,
-    kUnwindStateClearPeriodMsFieldNumber = 10,
-    kAllCpusFieldNumber = 1,
-    kSamplingFrequencyFieldNumber = 2,
-    kKernelFramesFieldNumber = 12,
-    kTargetPidFieldNumber = 4,
-    kTargetCmdlineFieldNumber = 5,
-    kTargetInstalledByFieldNumber = 18,
-    kExcludePidFieldNumber = 6,
-    kExcludeCmdlineFieldNumber = 7,
-    kAdditionalCmdlineCountFieldNumber = 11,
-  };
-
-  PerfEventConfig();
-  ~PerfEventConfig() override;
-  PerfEventConfig(PerfEventConfig&&) noexcept;
-  PerfEventConfig& operator=(PerfEventConfig&&);
-  PerfEventConfig(const PerfEventConfig&);
-  PerfEventConfig& operator=(const PerfEventConfig&);
-  bool operator==(const PerfEventConfig&) const;
-  bool operator!=(const PerfEventConfig& other) const { return !(*this == other); }
-
-  bool ParseFromArray(const void*, size_t) override;
-  std::string SerializeAsString() const override;
-  std::vector<uint8_t> SerializeAsArray() const override;
-  void Serialize(::protozero::Message*) const;
-
-  bool has_timebase() const { return _has_field_[15]; }
-  const PerfEvents_Timebase& timebase() const { return *timebase_; }
-  PerfEvents_Timebase* mutable_timebase() { _has_field_.set(15); return timebase_.get(); }
-
-  bool has_callstack_sampling() const { return _has_field_[16]; }
-  const PerfEventConfig_CallstackSampling& callstack_sampling() const { return *callstack_sampling_; }
-  PerfEventConfig_CallstackSampling* mutable_callstack_sampling() { _has_field_.set(16); return callstack_sampling_.get(); }
-
-  bool has_ring_buffer_read_period_ms() const { return _has_field_[8]; }
-  uint32_t ring_buffer_read_period_ms() const { return ring_buffer_read_period_ms_; }
-  void set_ring_buffer_read_period_ms(uint32_t value) { ring_buffer_read_period_ms_ = value; _has_field_.set(8); }
-
-  bool has_ring_buffer_pages() const { return _has_field_[3]; }
-  uint32_t ring_buffer_pages() const { return ring_buffer_pages_; }
-  void set_ring_buffer_pages(uint32_t value) { ring_buffer_pages_ = value; _has_field_.set(3); }
-
-  bool has_max_enqueued_footprint_kb() const { return _has_field_[17]; }
-  uint64_t max_enqueued_footprint_kb() const { return max_enqueued_footprint_kb_; }
-  void set_max_enqueued_footprint_kb(uint64_t value) { max_enqueued_footprint_kb_ = value; _has_field_.set(17); }
-
-  bool has_max_daemon_memory_kb() const { return _has_field_[13]; }
-  uint32_t max_daemon_memory_kb() const { return max_daemon_memory_kb_; }
-  void set_max_daemon_memory_kb(uint32_t value) { max_daemon_memory_kb_ = value; _has_field_.set(13); }
-
-  bool has_remote_descriptor_timeout_ms() const { return _has_field_[9]; }
-  uint32_t remote_descriptor_timeout_ms() const { return remote_descriptor_timeout_ms_; }
-  void set_remote_descriptor_timeout_ms(uint32_t value) { remote_descriptor_timeout_ms_ = value; _has_field_.set(9); }
-
-  bool has_unwind_state_clear_period_ms() const { return _has_field_[10]; }
-  uint32_t unwind_state_clear_period_ms() const { return unwind_state_clear_period_ms_; }
-  void set_unwind_state_clear_period_ms(uint32_t value) { unwind_state_clear_period_ms_ = value; _has_field_.set(10); }
-
-  bool has_all_cpus() const { return _has_field_[1]; }
-  bool all_cpus() const { return all_cpus_; }
-  void set_all_cpus(bool value) { all_cpus_ = value; _has_field_.set(1); }
-
-  bool has_sampling_frequency() const { return _has_field_[2]; }
-  uint32_t sampling_frequency() const { return sampling_frequency_; }
-  void set_sampling_frequency(uint32_t value) { sampling_frequency_ = value; _has_field_.set(2); }
-
-  bool has_kernel_frames() const { return _has_field_[12]; }
-  bool kernel_frames() const { return kernel_frames_; }
-  void set_kernel_frames(bool value) { kernel_frames_ = value; _has_field_.set(12); }
-
-  const std::vector<int32_t>& target_pid() const { return target_pid_; }
-  std::vector<int32_t>* mutable_target_pid() { return &target_pid_; }
-  int target_pid_size() const { return static_cast<int>(target_pid_.size()); }
-  void clear_target_pid() { target_pid_.clear(); }
-  void add_target_pid(int32_t value) { target_pid_.emplace_back(value); }
-  int32_t* add_target_pid() { target_pid_.emplace_back(); return &target_pid_.back(); }
-
-  const std::vector<std::string>& target_cmdline() const { return target_cmdline_; }
-  std::vector<std::string>* mutable_target_cmdline() { return &target_cmdline_; }
-  int target_cmdline_size() const { return static_cast<int>(target_cmdline_.size()); }
-  void clear_target_cmdline() { target_cmdline_.clear(); }
-  void add_target_cmdline(std::string value) { target_cmdline_.emplace_back(value); }
-  std::string* add_target_cmdline() { target_cmdline_.emplace_back(); return &target_cmdline_.back(); }
-
-  const std::vector<std::string>& target_installed_by() const { return target_installed_by_; }
-  std::vector<std::string>* mutable_target_installed_by() { return &target_installed_by_; }
-  int target_installed_by_size() const { return static_cast<int>(target_installed_by_.size()); }
-  void clear_target_installed_by() { target_installed_by_.clear(); }
-  void add_target_installed_by(std::string value) { target_installed_by_.emplace_back(value); }
-  std::string* add_target_installed_by() { target_installed_by_.emplace_back(); return &target_installed_by_.back(); }
-
-  const std::vector<int32_t>& exclude_pid() const { return exclude_pid_; }
-  std::vector<int32_t>* mutable_exclude_pid() { return &exclude_pid_; }
-  int exclude_pid_size() const { return static_cast<int>(exclude_pid_.size()); }
-  void clear_exclude_pid() { exclude_pid_.clear(); }
-  void add_exclude_pid(int32_t value) { exclude_pid_.emplace_back(value); }
-  int32_t* add_exclude_pid() { exclude_pid_.emplace_back(); return &exclude_pid_.back(); }
-
-  const std::vector<std::string>& exclude_cmdline() const { return exclude_cmdline_; }
-  std::vector<std::string>* mutable_exclude_cmdline() { return &exclude_cmdline_; }
-  int exclude_cmdline_size() const { return static_cast<int>(exclude_cmdline_.size()); }
-  void clear_exclude_cmdline() { exclude_cmdline_.clear(); }
-  void add_exclude_cmdline(std::string value) { exclude_cmdline_.emplace_back(value); }
-  std::string* add_exclude_cmdline() { exclude_cmdline_.emplace_back(); return &exclude_cmdline_.back(); }
-
-  bool has_additional_cmdline_count() const { return _has_field_[11]; }
-  uint32_t additional_cmdline_count() const { return additional_cmdline_count_; }
-  void set_additional_cmdline_count(uint32_t value) { additional_cmdline_count_ = value; _has_field_.set(11); }
-
- private:
-  ::protozero::CopyablePtr<PerfEvents_Timebase> timebase_;
-  ::protozero::CopyablePtr<PerfEventConfig_CallstackSampling> callstack_sampling_;
-  uint32_t ring_buffer_read_period_ms_{};
-  uint32_t ring_buffer_pages_{};
-  uint64_t max_enqueued_footprint_kb_{};
-  uint32_t max_daemon_memory_kb_{};
-  uint32_t remote_descriptor_timeout_ms_{};
-  uint32_t unwind_state_clear_period_ms_{};
-  bool all_cpus_{};
-  uint32_t sampling_frequency_{};
-  bool kernel_frames_{};
-  std::vector<int32_t> target_pid_;
-  std::vector<std::string> target_cmdline_;
-  std::vector<std::string> target_installed_by_;
-  std::vector<int32_t> exclude_pid_;
-  std::vector<std::string> exclude_cmdline_;
-  uint32_t additional_cmdline_count_{};
-
-  // Allows to preserve unknown protobuf fields for compatibility
-  // with future versions of .proto files.
-  std::string unknown_fields_;
-
-  std::bitset<19> _has_field_{};
-};
-
-
-class PERFETTO_EXPORT PerfEventConfig_CallstackSampling : public ::protozero::CppMessageObj {
- public:
-  enum FieldNumbers {
-    kScopeFieldNumber = 1,
-    kKernelFramesFieldNumber = 2,
-  };
-
-  PerfEventConfig_CallstackSampling();
-  ~PerfEventConfig_CallstackSampling() override;
-  PerfEventConfig_CallstackSampling(PerfEventConfig_CallstackSampling&&) noexcept;
-  PerfEventConfig_CallstackSampling& operator=(PerfEventConfig_CallstackSampling&&);
-  PerfEventConfig_CallstackSampling(const PerfEventConfig_CallstackSampling&);
-  PerfEventConfig_CallstackSampling& operator=(const PerfEventConfig_CallstackSampling&);
-  bool operator==(const PerfEventConfig_CallstackSampling&) const;
-  bool operator!=(const PerfEventConfig_CallstackSampling& other) const { return !(*this == other); }
-
-  bool ParseFromArray(const void*, size_t) override;
-  std::string SerializeAsString() const override;
-  std::vector<uint8_t> SerializeAsArray() const override;
-  void Serialize(::protozero::Message*) const;
-
-  bool has_scope() const { return _has_field_[1]; }
-  const PerfEventConfig_Scope& scope() const { return *scope_; }
-  PerfEventConfig_Scope* mutable_scope() { _has_field_.set(1); return scope_.get(); }
-
-  bool has_kernel_frames() const { return _has_field_[2]; }
-  bool kernel_frames() const { return kernel_frames_; }
-  void set_kernel_frames(bool value) { kernel_frames_ = value; _has_field_.set(2); }
-
- private:
-  ::protozero::CopyablePtr<PerfEventConfig_Scope> scope_;
-  bool kernel_frames_{};
-
-  // Allows to preserve unknown protobuf fields for compatibility
-  // with future versions of .proto files.
-  std::string unknown_fields_;
-
-  std::bitset<3> _has_field_{};
-};
-
-
-class PERFETTO_EXPORT PerfEventConfig_Scope : public ::protozero::CppMessageObj {
- public:
-  enum FieldNumbers {
-    kTargetPidFieldNumber = 1,
-    kTargetCmdlineFieldNumber = 2,
-    kExcludePidFieldNumber = 3,
-    kExcludeCmdlineFieldNumber = 4,
-    kAdditionalCmdlineCountFieldNumber = 5,
-  };
-
-  PerfEventConfig_Scope();
-  ~PerfEventConfig_Scope() override;
-  PerfEventConfig_Scope(PerfEventConfig_Scope&&) noexcept;
-  PerfEventConfig_Scope& operator=(PerfEventConfig_Scope&&);
-  PerfEventConfig_Scope(const PerfEventConfig_Scope&);
-  PerfEventConfig_Scope& operator=(const PerfEventConfig_Scope&);
-  bool operator==(const PerfEventConfig_Scope&) const;
-  bool operator!=(const PerfEventConfig_Scope& other) const { return !(*this == other); }
-
-  bool ParseFromArray(const void*, size_t) override;
-  std::string SerializeAsString() const override;
-  std::vector<uint8_t> SerializeAsArray() const override;
-  void Serialize(::protozero::Message*) const;
-
-  const std::vector<int32_t>& target_pid() const { return target_pid_; }
-  std::vector<int32_t>* mutable_target_pid() { return &target_pid_; }
-  int target_pid_size() const { return static_cast<int>(target_pid_.size()); }
-  void clear_target_pid() { target_pid_.clear(); }
-  void add_target_pid(int32_t value) { target_pid_.emplace_back(value); }
-  int32_t* add_target_pid() { target_pid_.emplace_back(); return &target_pid_.back(); }
-
-  const std::vector<std::string>& target_cmdline() const { return target_cmdline_; }
-  std::vector<std::string>* mutable_target_cmdline() { return &target_cmdline_; }
-  int target_cmdline_size() const { return static_cast<int>(target_cmdline_.size()); }
-  void clear_target_cmdline() { target_cmdline_.clear(); }
-  void add_target_cmdline(std::string value) { target_cmdline_.emplace_back(value); }
-  std::string* add_target_cmdline() { target_cmdline_.emplace_back(); return &target_cmdline_.back(); }
-
-  const std::vector<int32_t>& exclude_pid() const { return exclude_pid_; }
-  std::vector<int32_t>* mutable_exclude_pid() { return &exclude_pid_; }
-  int exclude_pid_size() const { return static_cast<int>(exclude_pid_.size()); }
-  void clear_exclude_pid() { exclude_pid_.clear(); }
-  void add_exclude_pid(int32_t value) { exclude_pid_.emplace_back(value); }
-  int32_t* add_exclude_pid() { exclude_pid_.emplace_back(); return &exclude_pid_.back(); }
-
-  const std::vector<std::string>& exclude_cmdline() const { return exclude_cmdline_; }
-  std::vector<std::string>* mutable_exclude_cmdline() { return &exclude_cmdline_; }
-  int exclude_cmdline_size() const { return static_cast<int>(exclude_cmdline_.size()); }
-  void clear_exclude_cmdline() { exclude_cmdline_.clear(); }
-  void add_exclude_cmdline(std::string value) { exclude_cmdline_.emplace_back(value); }
-  std::string* add_exclude_cmdline() { exclude_cmdline_.emplace_back(); return &exclude_cmdline_.back(); }
-
-  bool has_additional_cmdline_count() const { return _has_field_[5]; }
-  uint32_t additional_cmdline_count() const { return additional_cmdline_count_; }
-  void set_additional_cmdline_count(uint32_t value) { additional_cmdline_count_ = value; _has_field_.set(5); }
-
- private:
-  std::vector<int32_t> target_pid_;
-  std::vector<std::string> target_cmdline_;
-  std::vector<int32_t> exclude_pid_;
-  std::vector<std::string> exclude_cmdline_;
-  uint32_t additional_cmdline_count_{};
-
-  // Allows to preserve unknown protobuf fields for compatibility
-  // with future versions of .proto files.
-  std::string unknown_fields_;
-
-  std::bitset<6> _has_field_{};
-};
-
-}  // namespace perfetto
-}  // namespace protos
-}  // namespace gen
-
-#endif  // PERFETTO_PROTOS_PROTOS_PERFETTO_CONFIG_PROFILING_PERF_EVENT_CONFIG_PROTO_CPP_H_
-// gen_amalgamated begin header: gen/protos/perfetto/config/sys_stats/sys_stats_config.gen.h
-// DO NOT EDIT. Autogenerated by Perfetto cppgen_plugin
-#ifndef PERFETTO_PROTOS_PROTOS_PERFETTO_CONFIG_SYS_STATS_SYS_STATS_CONFIG_PROTO_CPP_H_
-#define PERFETTO_PROTOS_PROTOS_PERFETTO_CONFIG_SYS_STATS_SYS_STATS_CONFIG_PROTO_CPP_H_
-
-#include <stdint.h>
-#include <bitset>
-#include <vector>
-#include <string>
-#include <type_traits>
-
-// gen_amalgamated expanded: #include "perfetto/protozero/cpp_message_obj.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/copyable_ptr.h"
-// gen_amalgamated expanded: #include "perfetto/base/export.h"
-
-namespace perfetto {
-namespace protos {
-namespace gen {
-class SysStatsConfig;
-enum SysStatsConfig_StatCounters : int;
-enum MeminfoCounters : int;
-enum VmstatCounters : int;
-}  // namespace perfetto
-}  // namespace protos
-}  // namespace gen
-
-namespace protozero {
-class Message;
-}  // namespace protozero
-
-namespace perfetto {
-namespace protos {
-namespace gen {
-enum SysStatsConfig_StatCounters : int {
-  SysStatsConfig_StatCounters_STAT_UNSPECIFIED = 0,
-  SysStatsConfig_StatCounters_STAT_CPU_TIMES = 1,
-  SysStatsConfig_StatCounters_STAT_IRQ_COUNTS = 2,
-  SysStatsConfig_StatCounters_STAT_SOFTIRQ_COUNTS = 3,
-  SysStatsConfig_StatCounters_STAT_FORK_COUNT = 4,
-};
-
-class PERFETTO_EXPORT SysStatsConfig : public ::protozero::CppMessageObj {
- public:
-  using StatCounters = SysStatsConfig_StatCounters;
-  static constexpr auto STAT_UNSPECIFIED = SysStatsConfig_StatCounters_STAT_UNSPECIFIED;
-  static constexpr auto STAT_CPU_TIMES = SysStatsConfig_StatCounters_STAT_CPU_TIMES;
-  static constexpr auto STAT_IRQ_COUNTS = SysStatsConfig_StatCounters_STAT_IRQ_COUNTS;
-  static constexpr auto STAT_SOFTIRQ_COUNTS = SysStatsConfig_StatCounters_STAT_SOFTIRQ_COUNTS;
-  static constexpr auto STAT_FORK_COUNT = SysStatsConfig_StatCounters_STAT_FORK_COUNT;
-  static constexpr auto StatCounters_MIN = SysStatsConfig_StatCounters_STAT_UNSPECIFIED;
-  static constexpr auto StatCounters_MAX = SysStatsConfig_StatCounters_STAT_FORK_COUNT;
-  enum FieldNumbers {
-    kMeminfoPeriodMsFieldNumber = 1,
-    kMeminfoCountersFieldNumber = 2,
-    kVmstatPeriodMsFieldNumber = 3,
-    kVmstatCountersFieldNumber = 4,
-    kStatPeriodMsFieldNumber = 5,
-    kStatCountersFieldNumber = 6,
-    kDevfreqPeriodMsFieldNumber = 7,
-  };
-
-  SysStatsConfig();
-  ~SysStatsConfig() override;
-  SysStatsConfig(SysStatsConfig&&) noexcept;
-  SysStatsConfig& operator=(SysStatsConfig&&);
-  SysStatsConfig(const SysStatsConfig&);
-  SysStatsConfig& operator=(const SysStatsConfig&);
-  bool operator==(const SysStatsConfig&) const;
-  bool operator!=(const SysStatsConfig& other) const { return !(*this == other); }
-
-  bool ParseFromArray(const void*, size_t) override;
-  std::string SerializeAsString() const override;
-  std::vector<uint8_t> SerializeAsArray() const override;
-  void Serialize(::protozero::Message*) const;
-
-  bool has_meminfo_period_ms() const { return _has_field_[1]; }
-  uint32_t meminfo_period_ms() const { return meminfo_period_ms_; }
-  void set_meminfo_period_ms(uint32_t value) { meminfo_period_ms_ = value; _has_field_.set(1); }
-
-  const std::vector<MeminfoCounters>& meminfo_counters() const { return meminfo_counters_; }
-  std::vector<MeminfoCounters>* mutable_meminfo_counters() { return &meminfo_counters_; }
-  int meminfo_counters_size() const { return static_cast<int>(meminfo_counters_.size()); }
-  void clear_meminfo_counters() { meminfo_counters_.clear(); }
-  void add_meminfo_counters(MeminfoCounters value) { meminfo_counters_.emplace_back(value); }
-  MeminfoCounters* add_meminfo_counters() { meminfo_counters_.emplace_back(); return &meminfo_counters_.back(); }
-
-  bool has_vmstat_period_ms() const { return _has_field_[3]; }
-  uint32_t vmstat_period_ms() const { return vmstat_period_ms_; }
-  void set_vmstat_period_ms(uint32_t value) { vmstat_period_ms_ = value; _has_field_.set(3); }
-
-  const std::vector<VmstatCounters>& vmstat_counters() const { return vmstat_counters_; }
-  std::vector<VmstatCounters>* mutable_vmstat_counters() { return &vmstat_counters_; }
-  int vmstat_counters_size() const { return static_cast<int>(vmstat_counters_.size()); }
-  void clear_vmstat_counters() { vmstat_counters_.clear(); }
-  void add_vmstat_counters(VmstatCounters value) { vmstat_counters_.emplace_back(value); }
-  VmstatCounters* add_vmstat_counters() { vmstat_counters_.emplace_back(); return &vmstat_counters_.back(); }
-
-  bool has_stat_period_ms() const { return _has_field_[5]; }
-  uint32_t stat_period_ms() const { return stat_period_ms_; }
-  void set_stat_period_ms(uint32_t value) { stat_period_ms_ = value; _has_field_.set(5); }
-
-  const std::vector<SysStatsConfig_StatCounters>& stat_counters() const { return stat_counters_; }
-  std::vector<SysStatsConfig_StatCounters>* mutable_stat_counters() { return &stat_counters_; }
-  int stat_counters_size() const { return static_cast<int>(stat_counters_.size()); }
-  void clear_stat_counters() { stat_counters_.clear(); }
-  void add_stat_counters(SysStatsConfig_StatCounters value) { stat_counters_.emplace_back(value); }
-  SysStatsConfig_StatCounters* add_stat_counters() { stat_counters_.emplace_back(); return &stat_counters_.back(); }
-
-  bool has_devfreq_period_ms() const { return _has_field_[7]; }
-  uint32_t devfreq_period_ms() const { return devfreq_period_ms_; }
-  void set_devfreq_period_ms(uint32_t value) { devfreq_period_ms_ = value; _has_field_.set(7); }
-
- private:
-  uint32_t meminfo_period_ms_{};
-  std::vector<MeminfoCounters> meminfo_counters_;
-  uint32_t vmstat_period_ms_{};
-  std::vector<VmstatCounters> vmstat_counters_;
-  uint32_t stat_period_ms_{};
-  std::vector<SysStatsConfig_StatCounters> stat_counters_;
-  uint32_t devfreq_period_ms_{};
-
-  // Allows to preserve unknown protobuf fields for compatibility
-  // with future versions of .proto files.
-  std::string unknown_fields_;
-
-  std::bitset<8> _has_field_{};
-};
-
-}  // namespace perfetto
-}  // namespace protos
-}  // namespace gen
-
-#endif  // PERFETTO_PROTOS_PROTOS_PERFETTO_CONFIG_SYS_STATS_SYS_STATS_CONFIG_PROTO_CPP_H_
-// gen_amalgamated begin header: gen/protos/perfetto/config/chrome/chrome_config.gen.h
-// DO NOT EDIT. Autogenerated by Perfetto cppgen_plugin
-#ifndef PERFETTO_PROTOS_PROTOS_PERFETTO_CONFIG_CHROME_CHROME_CONFIG_PROTO_CPP_H_
-#define PERFETTO_PROTOS_PROTOS_PERFETTO_CONFIG_CHROME_CHROME_CONFIG_PROTO_CPP_H_
-
-#include <stdint.h>
-#include <bitset>
-#include <vector>
-#include <string>
-#include <type_traits>
-
-// gen_amalgamated expanded: #include "perfetto/protozero/cpp_message_obj.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/copyable_ptr.h"
-// gen_amalgamated expanded: #include "perfetto/base/export.h"
-
-namespace perfetto {
-namespace protos {
-namespace gen {
-class ChromeConfig;
-enum ChromeConfig_ClientPriority : int;
-}  // namespace perfetto
-}  // namespace protos
-}  // namespace gen
-
-namespace protozero {
-class Message;
-}  // namespace protozero
-
-namespace perfetto {
-namespace protos {
-namespace gen {
-enum ChromeConfig_ClientPriority : int {
-  ChromeConfig_ClientPriority_UNKNOWN = 0,
-  ChromeConfig_ClientPriority_BACKGROUND = 1,
-  ChromeConfig_ClientPriority_USER_INITIATED = 2,
-};
-
-class PERFETTO_EXPORT ChromeConfig : public ::protozero::CppMessageObj {
- public:
-  using ClientPriority = ChromeConfig_ClientPriority;
-  static constexpr auto UNKNOWN = ChromeConfig_ClientPriority_UNKNOWN;
-  static constexpr auto BACKGROUND = ChromeConfig_ClientPriority_BACKGROUND;
-  static constexpr auto USER_INITIATED = ChromeConfig_ClientPriority_USER_INITIATED;
-  static constexpr auto ClientPriority_MIN = ChromeConfig_ClientPriority_UNKNOWN;
-  static constexpr auto ClientPriority_MAX = ChromeConfig_ClientPriority_USER_INITIATED;
-  enum FieldNumbers {
-    kTraceConfigFieldNumber = 1,
-    kPrivacyFilteringEnabledFieldNumber = 2,
-    kConvertToLegacyJsonFieldNumber = 3,
-    kClientPriorityFieldNumber = 4,
-    kJsonAgentLabelFilterFieldNumber = 5,
-  };
-
-  ChromeConfig();
-  ~ChromeConfig() override;
-  ChromeConfig(ChromeConfig&&) noexcept;
-  ChromeConfig& operator=(ChromeConfig&&);
-  ChromeConfig(const ChromeConfig&);
-  ChromeConfig& operator=(const ChromeConfig&);
-  bool operator==(const ChromeConfig&) const;
-  bool operator!=(const ChromeConfig& other) const { return !(*this == other); }
-
-  bool ParseFromArray(const void*, size_t) override;
-  std::string SerializeAsString() const override;
-  std::vector<uint8_t> SerializeAsArray() const override;
-  void Serialize(::protozero::Message*) const;
-
-  bool has_trace_config() const { return _has_field_[1]; }
-  const std::string& trace_config() const { return trace_config_; }
-  void set_trace_config(const std::string& value) { trace_config_ = value; _has_field_.set(1); }
-
-  bool has_privacy_filtering_enabled() const { return _has_field_[2]; }
-  bool privacy_filtering_enabled() const { return privacy_filtering_enabled_; }
-  void set_privacy_filtering_enabled(bool value) { privacy_filtering_enabled_ = value; _has_field_.set(2); }
-
-  bool has_convert_to_legacy_json() const { return _has_field_[3]; }
-  bool convert_to_legacy_json() const { return convert_to_legacy_json_; }
-  void set_convert_to_legacy_json(bool value) { convert_to_legacy_json_ = value; _has_field_.set(3); }
-
-  bool has_client_priority() const { return _has_field_[4]; }
-  ChromeConfig_ClientPriority client_priority() const { return client_priority_; }
-  void set_client_priority(ChromeConfig_ClientPriority value) { client_priority_ = value; _has_field_.set(4); }
-
-  bool has_json_agent_label_filter() const { return _has_field_[5]; }
-  const std::string& json_agent_label_filter() const { return json_agent_label_filter_; }
-  void set_json_agent_label_filter(const std::string& value) { json_agent_label_filter_ = value; _has_field_.set(5); }
-
- private:
-  std::string trace_config_{};
-  bool privacy_filtering_enabled_{};
-  bool convert_to_legacy_json_{};
-  ChromeConfig_ClientPriority client_priority_{};
-  std::string json_agent_label_filter_{};
-
-  // Allows to preserve unknown protobuf fields for compatibility
-  // with future versions of .proto files.
-  std::string unknown_fields_;
-
-  std::bitset<6> _has_field_{};
-};
-
-}  // namespace perfetto
-}  // namespace protos
-}  // namespace gen
-
-#endif  // PERFETTO_PROTOS_PROTOS_PERFETTO_CONFIG_CHROME_CHROME_CONFIG_PROTO_CPP_H_
-// gen_amalgamated begin header: gen/protos/perfetto/config/data_source_config.gen.h
-// DO NOT EDIT. Autogenerated by Perfetto cppgen_plugin
-#ifndef PERFETTO_PROTOS_PROTOS_PERFETTO_CONFIG_DATA_SOURCE_CONFIG_PROTO_CPP_H_
-#define PERFETTO_PROTOS_PROTOS_PERFETTO_CONFIG_DATA_SOURCE_CONFIG_PROTO_CPP_H_
-
-#include <stdint.h>
-#include <bitset>
-#include <vector>
-#include <string>
-#include <type_traits>
-
-// gen_amalgamated expanded: #include "perfetto/protozero/cpp_message_obj.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/copyable_ptr.h"
-// gen_amalgamated expanded: #include "perfetto/base/export.h"
-
-namespace perfetto {
-namespace protos {
-namespace gen {
-class DataSourceConfig;
-class TestConfig;
-class TestConfig_DummyFields;
-class InterceptorConfig;
-class ChromeConfig;
-enum DataSourceConfig_SessionInitiator : int;
-enum ChromeConfig_ClientPriority : int;
-}  // namespace perfetto
-}  // namespace protos
-}  // namespace gen
-
-namespace protozero {
-class Message;
-}  // namespace protozero
-
-namespace perfetto {
-namespace protos {
-namespace gen {
-enum DataSourceConfig_SessionInitiator : int {
-  DataSourceConfig_SessionInitiator_SESSION_INITIATOR_UNSPECIFIED = 0,
-  DataSourceConfig_SessionInitiator_SESSION_INITIATOR_TRUSTED_SYSTEM = 1,
-};
-
-class PERFETTO_EXPORT DataSourceConfig : public ::protozero::CppMessageObj {
- public:
-  using SessionInitiator = DataSourceConfig_SessionInitiator;
-  static constexpr auto SESSION_INITIATOR_UNSPECIFIED = DataSourceConfig_SessionInitiator_SESSION_INITIATOR_UNSPECIFIED;
-  static constexpr auto SESSION_INITIATOR_TRUSTED_SYSTEM = DataSourceConfig_SessionInitiator_SESSION_INITIATOR_TRUSTED_SYSTEM;
-  static constexpr auto SessionInitiator_MIN = DataSourceConfig_SessionInitiator_SESSION_INITIATOR_UNSPECIFIED;
-  static constexpr auto SessionInitiator_MAX = DataSourceConfig_SessionInitiator_SESSION_INITIATOR_TRUSTED_SYSTEM;
-  enum FieldNumbers {
-    kNameFieldNumber = 1,
-    kTargetBufferFieldNumber = 2,
-    kTraceDurationMsFieldNumber = 3,
-    kStopTimeoutMsFieldNumber = 7,
-    kEnableExtraGuardrailsFieldNumber = 6,
-    kSessionInitiatorFieldNumber = 8,
-    kTracingSessionIdFieldNumber = 4,
-    kFtraceConfigFieldNumber = 100,
-    kInodeFileConfigFieldNumber = 102,
-    kProcessStatsConfigFieldNumber = 103,
-    kSysStatsConfigFieldNumber = 104,
-    kHeapprofdConfigFieldNumber = 105,
-    kJavaHprofConfigFieldNumber = 110,
-    kAndroidPowerConfigFieldNumber = 106,
-    kAndroidLogConfigFieldNumber = 107,
-    kGpuCounterConfigFieldNumber = 108,
-    kPackagesListConfigFieldNumber = 109,
-    kPerfEventConfigFieldNumber = 111,
-    kVulkanMemoryConfigFieldNumber = 112,
-    kTrackEventConfigFieldNumber = 113,
-    kAndroidPolledStateConfigFieldNumber = 114,
-    kChromeConfigFieldNumber = 101,
-    kInterceptorConfigFieldNumber = 115,
-    kLegacyConfigFieldNumber = 1000,
-    kForTestingFieldNumber = 1001,
-  };
-
-  DataSourceConfig();
-  ~DataSourceConfig() override;
-  DataSourceConfig(DataSourceConfig&&) noexcept;
-  DataSourceConfig& operator=(DataSourceConfig&&);
-  DataSourceConfig(const DataSourceConfig&);
-  DataSourceConfig& operator=(const DataSourceConfig&);
-  bool operator==(const DataSourceConfig&) const;
-  bool operator!=(const DataSourceConfig& other) const { return !(*this == other); }
-
-  bool ParseFromArray(const void*, size_t) override;
-  std::string SerializeAsString() const override;
-  std::vector<uint8_t> SerializeAsArray() const override;
-  void Serialize(::protozero::Message*) const;
-
-  bool has_name() const { return _has_field_[1]; }
-  const std::string& name() const { return name_; }
-  void set_name(const std::string& value) { name_ = value; _has_field_.set(1); }
-
-  bool has_target_buffer() const { return _has_field_[2]; }
-  uint32_t target_buffer() const { return target_buffer_; }
-  void set_target_buffer(uint32_t value) { target_buffer_ = value; _has_field_.set(2); }
-
-  bool has_trace_duration_ms() const { return _has_field_[3]; }
-  uint32_t trace_duration_ms() const { return trace_duration_ms_; }
-  void set_trace_duration_ms(uint32_t value) { trace_duration_ms_ = value; _has_field_.set(3); }
-
-  bool has_stop_timeout_ms() const { return _has_field_[7]; }
-  uint32_t stop_timeout_ms() const { return stop_timeout_ms_; }
-  void set_stop_timeout_ms(uint32_t value) { stop_timeout_ms_ = value; _has_field_.set(7); }
-
-  bool has_enable_extra_guardrails() const { return _has_field_[6]; }
-  bool enable_extra_guardrails() const { return enable_extra_guardrails_; }
-  void set_enable_extra_guardrails(bool value) { enable_extra_guardrails_ = value; _has_field_.set(6); }
-
-  bool has_session_initiator() const { return _has_field_[8]; }
-  DataSourceConfig_SessionInitiator session_initiator() const { return session_initiator_; }
-  void set_session_initiator(DataSourceConfig_SessionInitiator value) { session_initiator_ = value; _has_field_.set(8); }
-
-  bool has_tracing_session_id() const { return _has_field_[4]; }
-  uint64_t tracing_session_id() const { return tracing_session_id_; }
-  void set_tracing_session_id(uint64_t value) { tracing_session_id_ = value; _has_field_.set(4); }
-
-  const std::string& ftrace_config_raw() const { return ftrace_config_; }
-  void set_ftrace_config_raw(const std::string& raw) { ftrace_config_ = raw; _has_field_.set(100); }
-
-  const std::string& inode_file_config_raw() const { return inode_file_config_; }
-  void set_inode_file_config_raw(const std::string& raw) { inode_file_config_ = raw; _has_field_.set(102); }
-
-  const std::string& process_stats_config_raw() const { return process_stats_config_; }
-  void set_process_stats_config_raw(const std::string& raw) { process_stats_config_ = raw; _has_field_.set(103); }
-
-  const std::string& sys_stats_config_raw() const { return sys_stats_config_; }
-  void set_sys_stats_config_raw(const std::string& raw) { sys_stats_config_ = raw; _has_field_.set(104); }
-
-  const std::string& heapprofd_config_raw() const { return heapprofd_config_; }
-  void set_heapprofd_config_raw(const std::string& raw) { heapprofd_config_ = raw; _has_field_.set(105); }
-
-  const std::string& java_hprof_config_raw() const { return java_hprof_config_; }
-  void set_java_hprof_config_raw(const std::string& raw) { java_hprof_config_ = raw; _has_field_.set(110); }
-
-  const std::string& android_power_config_raw() const { return android_power_config_; }
-  void set_android_power_config_raw(const std::string& raw) { android_power_config_ = raw; _has_field_.set(106); }
-
-  const std::string& android_log_config_raw() const { return android_log_config_; }
-  void set_android_log_config_raw(const std::string& raw) { android_log_config_ = raw; _has_field_.set(107); }
-
-  const std::string& gpu_counter_config_raw() const { return gpu_counter_config_; }
-  void set_gpu_counter_config_raw(const std::string& raw) { gpu_counter_config_ = raw; _has_field_.set(108); }
-
-  const std::string& packages_list_config_raw() const { return packages_list_config_; }
-  void set_packages_list_config_raw(const std::string& raw) { packages_list_config_ = raw; _has_field_.set(109); }
-
-  const std::string& perf_event_config_raw() const { return perf_event_config_; }
-  void set_perf_event_config_raw(const std::string& raw) { perf_event_config_ = raw; _has_field_.set(111); }
-
-  const std::string& vulkan_memory_config_raw() const { return vulkan_memory_config_; }
-  void set_vulkan_memory_config_raw(const std::string& raw) { vulkan_memory_config_ = raw; _has_field_.set(112); }
-
-  const std::string& track_event_config_raw() const { return track_event_config_; }
-  void set_track_event_config_raw(const std::string& raw) { track_event_config_ = raw; _has_field_.set(113); }
-
-  const std::string& android_polled_state_config_raw() const { return android_polled_state_config_; }
-  void set_android_polled_state_config_raw(const std::string& raw) { android_polled_state_config_ = raw; _has_field_.set(114); }
-
-  bool has_chrome_config() const { return _has_field_[101]; }
-  const ChromeConfig& chrome_config() const { return *chrome_config_; }
-  ChromeConfig* mutable_chrome_config() { _has_field_.set(101); return chrome_config_.get(); }
-
-  bool has_interceptor_config() const { return _has_field_[115]; }
-  const InterceptorConfig& interceptor_config() const { return *interceptor_config_; }
-  InterceptorConfig* mutable_interceptor_config() { _has_field_.set(115); return interceptor_config_.get(); }
-
-  bool has_legacy_config() const { return _has_field_[1000]; }
-  const std::string& legacy_config() const { return legacy_config_; }
-  void set_legacy_config(const std::string& value) { legacy_config_ = value; _has_field_.set(1000); }
-
-  bool has_for_testing() const { return _has_field_[1001]; }
-  const TestConfig& for_testing() const { return *for_testing_; }
-  TestConfig* mutable_for_testing() { _has_field_.set(1001); return for_testing_.get(); }
-
- private:
-  std::string name_{};
-  uint32_t target_buffer_{};
-  uint32_t trace_duration_ms_{};
-  uint32_t stop_timeout_ms_{};
-  bool enable_extra_guardrails_{};
-  DataSourceConfig_SessionInitiator session_initiator_{};
-  uint64_t tracing_session_id_{};
-  std::string ftrace_config_;  // [lazy=true]
-  std::string inode_file_config_;  // [lazy=true]
-  std::string process_stats_config_;  // [lazy=true]
-  std::string sys_stats_config_;  // [lazy=true]
-  std::string heapprofd_config_;  // [lazy=true]
-  std::string java_hprof_config_;  // [lazy=true]
-  std::string android_power_config_;  // [lazy=true]
-  std::string android_log_config_;  // [lazy=true]
-  std::string gpu_counter_config_;  // [lazy=true]
-  std::string packages_list_config_;  // [lazy=true]
-  std::string perf_event_config_;  // [lazy=true]
-  std::string vulkan_memory_config_;  // [lazy=true]
-  std::string track_event_config_;  // [lazy=true]
-  std::string android_polled_state_config_;  // [lazy=true]
-  ::protozero::CopyablePtr<ChromeConfig> chrome_config_;
-  ::protozero::CopyablePtr<InterceptorConfig> interceptor_config_;
-  std::string legacy_config_{};
-  ::protozero::CopyablePtr<TestConfig> for_testing_;
-
-  // Allows to preserve unknown protobuf fields for compatibility
-  // with future versions of .proto files.
-  std::string unknown_fields_;
-
-  std::bitset<1002> _has_field_{};
-};
-
-}  // namespace perfetto
-}  // namespace protos
-}  // namespace gen
-
-#endif  // PERFETTO_PROTOS_PROTOS_PERFETTO_CONFIG_DATA_SOURCE_CONFIG_PROTO_CPP_H_
-// gen_amalgamated begin header: gen/protos/perfetto/config/interceptor_config.gen.h
-// DO NOT EDIT. Autogenerated by Perfetto cppgen_plugin
-#ifndef PERFETTO_PROTOS_PROTOS_PERFETTO_CONFIG_INTERCEPTOR_CONFIG_PROTO_CPP_H_
-#define PERFETTO_PROTOS_PROTOS_PERFETTO_CONFIG_INTERCEPTOR_CONFIG_PROTO_CPP_H_
-
-#include <stdint.h>
-#include <bitset>
-#include <vector>
-#include <string>
-#include <type_traits>
-
-// gen_amalgamated expanded: #include "perfetto/protozero/cpp_message_obj.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/copyable_ptr.h"
-// gen_amalgamated expanded: #include "perfetto/base/export.h"
-
-namespace perfetto {
-namespace protos {
-namespace gen {
-class InterceptorConfig;
-}  // namespace perfetto
-}  // namespace protos
-}  // namespace gen
-
-namespace protozero {
-class Message;
-}  // namespace protozero
-
-namespace perfetto {
-namespace protos {
-namespace gen {
-
-class PERFETTO_EXPORT InterceptorConfig : public ::protozero::CppMessageObj {
- public:
-  enum FieldNumbers {
-    kNameFieldNumber = 1,
-    kConsoleConfigFieldNumber = 100,
-  };
-
-  InterceptorConfig();
-  ~InterceptorConfig() override;
-  InterceptorConfig(InterceptorConfig&&) noexcept;
-  InterceptorConfig& operator=(InterceptorConfig&&);
-  InterceptorConfig(const InterceptorConfig&);
-  InterceptorConfig& operator=(const InterceptorConfig&);
-  bool operator==(const InterceptorConfig&) const;
-  bool operator!=(const InterceptorConfig& other) const { return !(*this == other); }
-
-  bool ParseFromArray(const void*, size_t) override;
-  std::string SerializeAsString() const override;
-  std::vector<uint8_t> SerializeAsArray() const override;
-  void Serialize(::protozero::Message*) const;
-
-  bool has_name() const { return _has_field_[1]; }
-  const std::string& name() const { return name_; }
-  void set_name(const std::string& value) { name_ = value; _has_field_.set(1); }
-
-  const std::string& console_config_raw() const { return console_config_; }
-  void set_console_config_raw(const std::string& raw) { console_config_ = raw; _has_field_.set(100); }
-
- private:
-  std::string name_{};
-  std::string console_config_;  // [lazy=true]
-
-  // Allows to preserve unknown protobuf fields for compatibility
-  // with future versions of .proto files.
-  std::string unknown_fields_;
-
-  std::bitset<101> _has_field_{};
-};
-
-}  // namespace perfetto
-}  // namespace protos
-}  // namespace gen
-
-#endif  // PERFETTO_PROTOS_PROTOS_PERFETTO_CONFIG_INTERCEPTOR_CONFIG_PROTO_CPP_H_
-// gen_amalgamated begin header: gen/protos/perfetto/config/stress_test_config.gen.h
-// DO NOT EDIT. Autogenerated by Perfetto cppgen_plugin
-#ifndef PERFETTO_PROTOS_PROTOS_PERFETTO_CONFIG_STRESS_TEST_CONFIG_PROTO_CPP_H_
-#define PERFETTO_PROTOS_PROTOS_PERFETTO_CONFIG_STRESS_TEST_CONFIG_PROTO_CPP_H_
-
-#include <stdint.h>
-#include <bitset>
-#include <vector>
-#include <string>
-#include <type_traits>
-
-// gen_amalgamated expanded: #include "perfetto/protozero/cpp_message_obj.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/copyable_ptr.h"
-// gen_amalgamated expanded: #include "perfetto/base/export.h"
-
-namespace perfetto {
-namespace protos {
-namespace gen {
-class StressTestConfig;
-class StressTestConfig_WriterTiming;
-class TraceConfig;
-class TraceConfig_TraceFilter;
-class TraceConfig_IncidentReportConfig;
-class TraceConfig_IncrementalStateConfig;
-class TraceConfig_TriggerConfig;
-class TraceConfig_TriggerConfig_Trigger;
-class TraceConfig_GuardrailOverrides;
-class TraceConfig_StatsdMetadata;
-class TraceConfig_ProducerConfig;
-class TraceConfig_BuiltinDataSource;
-class TraceConfig_DataSource;
-class DataSourceConfig;
-class TestConfig;
-class TestConfig_DummyFields;
-class InterceptorConfig;
-class ChromeConfig;
-class TraceConfig_BufferConfig;
-enum TraceConfig_LockdownModeOperation : int;
-enum TraceConfig_CompressionType : int;
-enum TraceConfig_StatsdLogging : int;
-enum TraceConfig_TriggerConfig_TriggerMode : int;
-enum BuiltinClock : int;
-enum DataSourceConfig_SessionInitiator : int;
-enum ChromeConfig_ClientPriority : int;
-enum TraceConfig_BufferConfig_FillPolicy : int;
-}  // namespace perfetto
-}  // namespace protos
-}  // namespace gen
-
-namespace protozero {
-class Message;
-}  // namespace protozero
-
-namespace perfetto {
-namespace protos {
-namespace gen {
-
-class PERFETTO_EXPORT StressTestConfig : public ::protozero::CppMessageObj {
- public:
-  using WriterTiming = StressTestConfig_WriterTiming;
-  enum FieldNumbers {
-    kTraceConfigFieldNumber = 1,
-    kShmemSizeKbFieldNumber = 2,
-    kShmemPageSizeKbFieldNumber = 3,
-    kNumProcessesFieldNumber = 4,
-    kNumThreadsFieldNumber = 5,
-    kMaxEventsFieldNumber = 6,
-    kNestingFieldNumber = 7,
-    kSteadyStateTimingsFieldNumber = 8,
-    kBurstPeriodMsFieldNumber = 9,
-    kBurstDurationMsFieldNumber = 10,
-    kBurstTimingsFieldNumber = 11,
-  };
-
-  StressTestConfig();
-  ~StressTestConfig() override;
-  StressTestConfig(StressTestConfig&&) noexcept;
-  StressTestConfig& operator=(StressTestConfig&&);
-  StressTestConfig(const StressTestConfig&);
-  StressTestConfig& operator=(const StressTestConfig&);
-  bool operator==(const StressTestConfig&) const;
-  bool operator!=(const StressTestConfig& other) const { return !(*this == other); }
-
-  bool ParseFromArray(const void*, size_t) override;
-  std::string SerializeAsString() const override;
-  std::vector<uint8_t> SerializeAsArray() const override;
-  void Serialize(::protozero::Message*) const;
-
-  bool has_trace_config() const { return _has_field_[1]; }
-  const TraceConfig& trace_config() const { return *trace_config_; }
-  TraceConfig* mutable_trace_config() { _has_field_.set(1); return trace_config_.get(); }
-
-  bool has_shmem_size_kb() const { return _has_field_[2]; }
-  uint32_t shmem_size_kb() const { return shmem_size_kb_; }
-  void set_shmem_size_kb(uint32_t value) { shmem_size_kb_ = value; _has_field_.set(2); }
-
-  bool has_shmem_page_size_kb() const { return _has_field_[3]; }
-  uint32_t shmem_page_size_kb() const { return shmem_page_size_kb_; }
-  void set_shmem_page_size_kb(uint32_t value) { shmem_page_size_kb_ = value; _has_field_.set(3); }
-
-  bool has_num_processes() const { return _has_field_[4]; }
-  uint32_t num_processes() const { return num_processes_; }
-  void set_num_processes(uint32_t value) { num_processes_ = value; _has_field_.set(4); }
-
-  bool has_num_threads() const { return _has_field_[5]; }
-  uint32_t num_threads() const { return num_threads_; }
-  void set_num_threads(uint32_t value) { num_threads_ = value; _has_field_.set(5); }
-
-  bool has_max_events() const { return _has_field_[6]; }
-  uint32_t max_events() const { return max_events_; }
-  void set_max_events(uint32_t value) { max_events_ = value; _has_field_.set(6); }
-
-  bool has_nesting() const { return _has_field_[7]; }
-  uint32_t nesting() const { return nesting_; }
-  void set_nesting(uint32_t value) { nesting_ = value; _has_field_.set(7); }
-
-  bool has_steady_state_timings() const { return _has_field_[8]; }
-  const StressTestConfig_WriterTiming& steady_state_timings() const { return *steady_state_timings_; }
-  StressTestConfig_WriterTiming* mutable_steady_state_timings() { _has_field_.set(8); return steady_state_timings_.get(); }
-
-  bool has_burst_period_ms() const { return _has_field_[9]; }
-  uint32_t burst_period_ms() const { return burst_period_ms_; }
-  void set_burst_period_ms(uint32_t value) { burst_period_ms_ = value; _has_field_.set(9); }
-
-  bool has_burst_duration_ms() const { return _has_field_[10]; }
-  uint32_t burst_duration_ms() const { return burst_duration_ms_; }
-  void set_burst_duration_ms(uint32_t value) { burst_duration_ms_ = value; _has_field_.set(10); }
-
-  bool has_burst_timings() const { return _has_field_[11]; }
-  const StressTestConfig_WriterTiming& burst_timings() const { return *burst_timings_; }
-  StressTestConfig_WriterTiming* mutable_burst_timings() { _has_field_.set(11); return burst_timings_.get(); }
-
- private:
-  ::protozero::CopyablePtr<TraceConfig> trace_config_;
-  uint32_t shmem_size_kb_{};
-  uint32_t shmem_page_size_kb_{};
-  uint32_t num_processes_{};
-  uint32_t num_threads_{};
-  uint32_t max_events_{};
-  uint32_t nesting_{};
-  ::protozero::CopyablePtr<StressTestConfig_WriterTiming> steady_state_timings_;
-  uint32_t burst_period_ms_{};
-  uint32_t burst_duration_ms_{};
-  ::protozero::CopyablePtr<StressTestConfig_WriterTiming> burst_timings_;
-
-  // Allows to preserve unknown protobuf fields for compatibility
-  // with future versions of .proto files.
-  std::string unknown_fields_;
-
-  std::bitset<12> _has_field_{};
-};
-
-
-class PERFETTO_EXPORT StressTestConfig_WriterTiming : public ::protozero::CppMessageObj {
- public:
-  enum FieldNumbers {
-    kPayloadMeanFieldNumber = 1,
-    kPayloadStddevFieldNumber = 2,
-    kRateMeanFieldNumber = 3,
-    kRateStddevFieldNumber = 4,
-    kPayloadWriteTimeMsFieldNumber = 5,
-  };
-
-  StressTestConfig_WriterTiming();
-  ~StressTestConfig_WriterTiming() override;
-  StressTestConfig_WriterTiming(StressTestConfig_WriterTiming&&) noexcept;
-  StressTestConfig_WriterTiming& operator=(StressTestConfig_WriterTiming&&);
-  StressTestConfig_WriterTiming(const StressTestConfig_WriterTiming&);
-  StressTestConfig_WriterTiming& operator=(const StressTestConfig_WriterTiming&);
-  bool operator==(const StressTestConfig_WriterTiming&) const;
-  bool operator!=(const StressTestConfig_WriterTiming& other) const { return !(*this == other); }
-
-  bool ParseFromArray(const void*, size_t) override;
-  std::string SerializeAsString() const override;
-  std::vector<uint8_t> SerializeAsArray() const override;
-  void Serialize(::protozero::Message*) const;
-
-  bool has_payload_mean() const { return _has_field_[1]; }
-  double payload_mean() const { return payload_mean_; }
-  void set_payload_mean(double value) { payload_mean_ = value; _has_field_.set(1); }
-
-  bool has_payload_stddev() const { return _has_field_[2]; }
-  double payload_stddev() const { return payload_stddev_; }
-  void set_payload_stddev(double value) { payload_stddev_ = value; _has_field_.set(2); }
-
-  bool has_rate_mean() const { return _has_field_[3]; }
-  double rate_mean() const { return rate_mean_; }
-  void set_rate_mean(double value) { rate_mean_ = value; _has_field_.set(3); }
-
-  bool has_rate_stddev() const { return _has_field_[4]; }
-  double rate_stddev() const { return rate_stddev_; }
-  void set_rate_stddev(double value) { rate_stddev_ = value; _has_field_.set(4); }
-
-  bool has_payload_write_time_ms() const { return _has_field_[5]; }
-  uint32_t payload_write_time_ms() const { return payload_write_time_ms_; }
-  void set_payload_write_time_ms(uint32_t value) { payload_write_time_ms_ = value; _has_field_.set(5); }
-
- private:
-  double payload_mean_{};
-  double payload_stddev_{};
-  double rate_mean_{};
-  double rate_stddev_{};
-  uint32_t payload_write_time_ms_{};
-
-  // Allows to preserve unknown protobuf fields for compatibility
-  // with future versions of .proto files.
-  std::string unknown_fields_;
-
-  std::bitset<6> _has_field_{};
-};
-
-}  // namespace perfetto
-}  // namespace protos
-}  // namespace gen
-
-#endif  // PERFETTO_PROTOS_PROTOS_PERFETTO_CONFIG_STRESS_TEST_CONFIG_PROTO_CPP_H_
-// gen_amalgamated begin header: gen/protos/perfetto/config/test_config.gen.h
-// DO NOT EDIT. Autogenerated by Perfetto cppgen_plugin
-#ifndef PERFETTO_PROTOS_PROTOS_PERFETTO_CONFIG_TEST_CONFIG_PROTO_CPP_H_
-#define PERFETTO_PROTOS_PROTOS_PERFETTO_CONFIG_TEST_CONFIG_PROTO_CPP_H_
-
-#include <stdint.h>
-#include <bitset>
-#include <vector>
-#include <string>
-#include <type_traits>
-
-// gen_amalgamated expanded: #include "perfetto/protozero/cpp_message_obj.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/copyable_ptr.h"
-// gen_amalgamated expanded: #include "perfetto/base/export.h"
-
-namespace perfetto {
-namespace protos {
-namespace gen {
-class TestConfig;
-class TestConfig_DummyFields;
-}  // namespace perfetto
-}  // namespace protos
-}  // namespace gen
-
-namespace protozero {
-class Message;
-}  // namespace protozero
-
-namespace perfetto {
-namespace protos {
-namespace gen {
-
-class PERFETTO_EXPORT TestConfig : public ::protozero::CppMessageObj {
- public:
-  using DummyFields = TestConfig_DummyFields;
-  enum FieldNumbers {
-    kMessageCountFieldNumber = 1,
-    kMaxMessagesPerSecondFieldNumber = 2,
-    kSeedFieldNumber = 3,
-    kMessageSizeFieldNumber = 4,
-    kSendBatchOnRegisterFieldNumber = 5,
-    kDummyFieldsFieldNumber = 6,
-  };
-
-  TestConfig();
-  ~TestConfig() override;
-  TestConfig(TestConfig&&) noexcept;
-  TestConfig& operator=(TestConfig&&);
-  TestConfig(const TestConfig&);
-  TestConfig& operator=(const TestConfig&);
-  bool operator==(const TestConfig&) const;
-  bool operator!=(const TestConfig& other) const { return !(*this == other); }
-
-  bool ParseFromArray(const void*, size_t) override;
-  std::string SerializeAsString() const override;
-  std::vector<uint8_t> SerializeAsArray() const override;
-  void Serialize(::protozero::Message*) const;
-
-  bool has_message_count() const { return _has_field_[1]; }
-  uint32_t message_count() const { return message_count_; }
-  void set_message_count(uint32_t value) { message_count_ = value; _has_field_.set(1); }
-
-  bool has_max_messages_per_second() const { return _has_field_[2]; }
-  uint32_t max_messages_per_second() const { return max_messages_per_second_; }
-  void set_max_messages_per_second(uint32_t value) { max_messages_per_second_ = value; _has_field_.set(2); }
-
-  bool has_seed() const { return _has_field_[3]; }
-  uint32_t seed() const { return seed_; }
-  void set_seed(uint32_t value) { seed_ = value; _has_field_.set(3); }
-
-  bool has_message_size() const { return _has_field_[4]; }
-  uint32_t message_size() const { return message_size_; }
-  void set_message_size(uint32_t value) { message_size_ = value; _has_field_.set(4); }
-
-  bool has_send_batch_on_register() const { return _has_field_[5]; }
-  bool send_batch_on_register() const { return send_batch_on_register_; }
-  void set_send_batch_on_register(bool value) { send_batch_on_register_ = value; _has_field_.set(5); }
-
-  bool has_dummy_fields() const { return _has_field_[6]; }
-  const TestConfig_DummyFields& dummy_fields() const { return *dummy_fields_; }
-  TestConfig_DummyFields* mutable_dummy_fields() { _has_field_.set(6); return dummy_fields_.get(); }
-
- private:
-  uint32_t message_count_{};
-  uint32_t max_messages_per_second_{};
-  uint32_t seed_{};
-  uint32_t message_size_{};
-  bool send_batch_on_register_{};
-  ::protozero::CopyablePtr<TestConfig_DummyFields> dummy_fields_;
-
-  // Allows to preserve unknown protobuf fields for compatibility
-  // with future versions of .proto files.
-  std::string unknown_fields_;
-
-  std::bitset<7> _has_field_{};
-};
-
-
-class PERFETTO_EXPORT TestConfig_DummyFields : public ::protozero::CppMessageObj {
- public:
-  enum FieldNumbers {
-    kFieldUint32FieldNumber = 1,
-    kFieldInt32FieldNumber = 2,
-    kFieldUint64FieldNumber = 3,
-    kFieldInt64FieldNumber = 4,
-    kFieldFixed64FieldNumber = 5,
-    kFieldSfixed64FieldNumber = 6,
-    kFieldFixed32FieldNumber = 7,
-    kFieldSfixed32FieldNumber = 8,
-    kFieldDoubleFieldNumber = 9,
-    kFieldFloatFieldNumber = 10,
-    kFieldSint64FieldNumber = 11,
-    kFieldSint32FieldNumber = 12,
-    kFieldStringFieldNumber = 13,
-    kFieldBytesFieldNumber = 14,
-  };
-
-  TestConfig_DummyFields();
-  ~TestConfig_DummyFields() override;
-  TestConfig_DummyFields(TestConfig_DummyFields&&) noexcept;
-  TestConfig_DummyFields& operator=(TestConfig_DummyFields&&);
-  TestConfig_DummyFields(const TestConfig_DummyFields&);
-  TestConfig_DummyFields& operator=(const TestConfig_DummyFields&);
-  bool operator==(const TestConfig_DummyFields&) const;
-  bool operator!=(const TestConfig_DummyFields& other) const { return !(*this == other); }
-
-  bool ParseFromArray(const void*, size_t) override;
-  std::string SerializeAsString() const override;
-  std::vector<uint8_t> SerializeAsArray() const override;
-  void Serialize(::protozero::Message*) const;
-
-  bool has_field_uint32() const { return _has_field_[1]; }
-  uint32_t field_uint32() const { return field_uint32_; }
-  void set_field_uint32(uint32_t value) { field_uint32_ = value; _has_field_.set(1); }
-
-  bool has_field_int32() const { return _has_field_[2]; }
-  int32_t field_int32() const { return field_int32_; }
-  void set_field_int32(int32_t value) { field_int32_ = value; _has_field_.set(2); }
-
-  bool has_field_uint64() const { return _has_field_[3]; }
-  uint64_t field_uint64() const { return field_uint64_; }
-  void set_field_uint64(uint64_t value) { field_uint64_ = value; _has_field_.set(3); }
-
-  bool has_field_int64() const { return _has_field_[4]; }
-  int64_t field_int64() const { return field_int64_; }
-  void set_field_int64(int64_t value) { field_int64_ = value; _has_field_.set(4); }
-
-  bool has_field_fixed64() const { return _has_field_[5]; }
-  uint64_t field_fixed64() const { return field_fixed64_; }
-  void set_field_fixed64(uint64_t value) { field_fixed64_ = value; _has_field_.set(5); }
-
-  bool has_field_sfixed64() const { return _has_field_[6]; }
-  int64_t field_sfixed64() const { return field_sfixed64_; }
-  void set_field_sfixed64(int64_t value) { field_sfixed64_ = value; _has_field_.set(6); }
-
-  bool has_field_fixed32() const { return _has_field_[7]; }
-  uint32_t field_fixed32() const { return field_fixed32_; }
-  void set_field_fixed32(uint32_t value) { field_fixed32_ = value; _has_field_.set(7); }
-
-  bool has_field_sfixed32() const { return _has_field_[8]; }
-  int32_t field_sfixed32() const { return field_sfixed32_; }
-  void set_field_sfixed32(int32_t value) { field_sfixed32_ = value; _has_field_.set(8); }
-
-  bool has_field_double() const { return _has_field_[9]; }
-  double field_double() const { return field_double_; }
-  void set_field_double(double value) { field_double_ = value; _has_field_.set(9); }
-
-  bool has_field_float() const { return _has_field_[10]; }
-  float field_float() const { return field_float_; }
-  void set_field_float(float value) { field_float_ = value; _has_field_.set(10); }
-
-  bool has_field_sint64() const { return _has_field_[11]; }
-  int64_t field_sint64() const { return field_sint64_; }
-  void set_field_sint64(int64_t value) { field_sint64_ = value; _has_field_.set(11); }
-
-  bool has_field_sint32() const { return _has_field_[12]; }
-  int32_t field_sint32() const { return field_sint32_; }
-  void set_field_sint32(int32_t value) { field_sint32_ = value; _has_field_.set(12); }
-
-  bool has_field_string() const { return _has_field_[13]; }
-  const std::string& field_string() const { return field_string_; }
-  void set_field_string(const std::string& value) { field_string_ = value; _has_field_.set(13); }
-
-  bool has_field_bytes() const { return _has_field_[14]; }
-  const std::string& field_bytes() const { return field_bytes_; }
-  void set_field_bytes(const std::string& value) { field_bytes_ = value; _has_field_.set(14); }
-  void set_field_bytes(const void* p, size_t s) { field_bytes_.assign(reinterpret_cast<const char*>(p), s); _has_field_.set(14); }
-
- private:
-  uint32_t field_uint32_{};
-  int32_t field_int32_{};
-  uint64_t field_uint64_{};
-  int64_t field_int64_{};
-  uint64_t field_fixed64_{};
-  int64_t field_sfixed64_{};
-  uint32_t field_fixed32_{};
-  int32_t field_sfixed32_{};
-  double field_double_{};
-  float field_float_{};
-  int64_t field_sint64_{};
-  int32_t field_sint32_{};
-  std::string field_string_{};
-  std::string field_bytes_{};
-
-  // Allows to preserve unknown protobuf fields for compatibility
-  // with future versions of .proto files.
-  std::string unknown_fields_;
-
-  std::bitset<15> _has_field_{};
-};
-
-}  // namespace perfetto
-}  // namespace protos
-}  // namespace gen
-
-#endif  // PERFETTO_PROTOS_PROTOS_PERFETTO_CONFIG_TEST_CONFIG_PROTO_CPP_H_
-// gen_amalgamated begin header: gen/protos/perfetto/config/trace_config.gen.h
-// DO NOT EDIT. Autogenerated by Perfetto cppgen_plugin
-#ifndef PERFETTO_PROTOS_PROTOS_PERFETTO_CONFIG_TRACE_CONFIG_PROTO_CPP_H_
-#define PERFETTO_PROTOS_PROTOS_PERFETTO_CONFIG_TRACE_CONFIG_PROTO_CPP_H_
-
-#include <stdint.h>
-#include <bitset>
-#include <vector>
-#include <string>
-#include <type_traits>
-
-// gen_amalgamated expanded: #include "perfetto/protozero/cpp_message_obj.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/copyable_ptr.h"
-// gen_amalgamated expanded: #include "perfetto/base/export.h"
-
-namespace perfetto {
-namespace protos {
-namespace gen {
-class TraceConfig;
-class TraceConfig_TraceFilter;
-class TraceConfig_IncidentReportConfig;
-class TraceConfig_IncrementalStateConfig;
-class TraceConfig_TriggerConfig;
-class TraceConfig_TriggerConfig_Trigger;
-class TraceConfig_GuardrailOverrides;
-class TraceConfig_StatsdMetadata;
-class TraceConfig_ProducerConfig;
-class TraceConfig_BuiltinDataSource;
-class TraceConfig_DataSource;
-class DataSourceConfig;
-class TestConfig;
-class TestConfig_DummyFields;
-class InterceptorConfig;
-class ChromeConfig;
-class TraceConfig_BufferConfig;
-enum TraceConfig_LockdownModeOperation : int;
-enum TraceConfig_CompressionType : int;
-enum TraceConfig_StatsdLogging : int;
-enum TraceConfig_TriggerConfig_TriggerMode : int;
-enum BuiltinClock : int;
-enum DataSourceConfig_SessionInitiator : int;
-enum ChromeConfig_ClientPriority : int;
-enum TraceConfig_BufferConfig_FillPolicy : int;
-}  // namespace perfetto
-}  // namespace protos
-}  // namespace gen
-
-namespace protozero {
-class Message;
-}  // namespace protozero
-
-namespace perfetto {
-namespace protos {
-namespace gen {
-enum TraceConfig_LockdownModeOperation : int {
-  TraceConfig_LockdownModeOperation_LOCKDOWN_UNCHANGED = 0,
-  TraceConfig_LockdownModeOperation_LOCKDOWN_CLEAR = 1,
-  TraceConfig_LockdownModeOperation_LOCKDOWN_SET = 2,
-};
-enum TraceConfig_CompressionType : int {
-  TraceConfig_CompressionType_COMPRESSION_TYPE_UNSPECIFIED = 0,
-  TraceConfig_CompressionType_COMPRESSION_TYPE_DEFLATE = 1,
-};
-enum TraceConfig_StatsdLogging : int {
-  TraceConfig_StatsdLogging_STATSD_LOGGING_UNSPECIFIED = 0,
-  TraceConfig_StatsdLogging_STATSD_LOGGING_ENABLED = 1,
-  TraceConfig_StatsdLogging_STATSD_LOGGING_DISABLED = 2,
-};
-enum TraceConfig_TriggerConfig_TriggerMode : int {
-  TraceConfig_TriggerConfig_TriggerMode_UNSPECIFIED = 0,
-  TraceConfig_TriggerConfig_TriggerMode_START_TRACING = 1,
-  TraceConfig_TriggerConfig_TriggerMode_STOP_TRACING = 2,
-};
-enum TraceConfig_BufferConfig_FillPolicy : int {
-  TraceConfig_BufferConfig_FillPolicy_UNSPECIFIED = 0,
-  TraceConfig_BufferConfig_FillPolicy_RING_BUFFER = 1,
-  TraceConfig_BufferConfig_FillPolicy_DISCARD = 2,
-};
-
-class PERFETTO_EXPORT TraceConfig : public ::protozero::CppMessageObj {
- public:
-  using BufferConfig = TraceConfig_BufferConfig;
-  using DataSource = TraceConfig_DataSource;
-  using BuiltinDataSource = TraceConfig_BuiltinDataSource;
-  using ProducerConfig = TraceConfig_ProducerConfig;
-  using StatsdMetadata = TraceConfig_StatsdMetadata;
-  using GuardrailOverrides = TraceConfig_GuardrailOverrides;
-  using TriggerConfig = TraceConfig_TriggerConfig;
-  using IncrementalStateConfig = TraceConfig_IncrementalStateConfig;
-  using IncidentReportConfig = TraceConfig_IncidentReportConfig;
-  using TraceFilter = TraceConfig_TraceFilter;
-  using LockdownModeOperation = TraceConfig_LockdownModeOperation;
-  static constexpr auto LOCKDOWN_UNCHANGED = TraceConfig_LockdownModeOperation_LOCKDOWN_UNCHANGED;
-  static constexpr auto LOCKDOWN_CLEAR = TraceConfig_LockdownModeOperation_LOCKDOWN_CLEAR;
-  static constexpr auto LOCKDOWN_SET = TraceConfig_LockdownModeOperation_LOCKDOWN_SET;
-  static constexpr auto LockdownModeOperation_MIN = TraceConfig_LockdownModeOperation_LOCKDOWN_UNCHANGED;
-  static constexpr auto LockdownModeOperation_MAX = TraceConfig_LockdownModeOperation_LOCKDOWN_SET;
-  using CompressionType = TraceConfig_CompressionType;
-  static constexpr auto COMPRESSION_TYPE_UNSPECIFIED = TraceConfig_CompressionType_COMPRESSION_TYPE_UNSPECIFIED;
-  static constexpr auto COMPRESSION_TYPE_DEFLATE = TraceConfig_CompressionType_COMPRESSION_TYPE_DEFLATE;
-  static constexpr auto CompressionType_MIN = TraceConfig_CompressionType_COMPRESSION_TYPE_UNSPECIFIED;
-  static constexpr auto CompressionType_MAX = TraceConfig_CompressionType_COMPRESSION_TYPE_DEFLATE;
-  using StatsdLogging = TraceConfig_StatsdLogging;
-  static constexpr auto STATSD_LOGGING_UNSPECIFIED = TraceConfig_StatsdLogging_STATSD_LOGGING_UNSPECIFIED;
-  static constexpr auto STATSD_LOGGING_ENABLED = TraceConfig_StatsdLogging_STATSD_LOGGING_ENABLED;
-  static constexpr auto STATSD_LOGGING_DISABLED = TraceConfig_StatsdLogging_STATSD_LOGGING_DISABLED;
-  static constexpr auto StatsdLogging_MIN = TraceConfig_StatsdLogging_STATSD_LOGGING_UNSPECIFIED;
-  static constexpr auto StatsdLogging_MAX = TraceConfig_StatsdLogging_STATSD_LOGGING_DISABLED;
-  enum FieldNumbers {
-    kBuffersFieldNumber = 1,
-    kDataSourcesFieldNumber = 2,
-    kBuiltinDataSourcesFieldNumber = 20,
-    kDurationMsFieldNumber = 3,
-    kEnableExtraGuardrailsFieldNumber = 4,
-    kLockdownModeFieldNumber = 5,
-    kProducersFieldNumber = 6,
-    kStatsdMetadataFieldNumber = 7,
-    kWriteIntoFileFieldNumber = 8,
-    kOutputPathFieldNumber = 29,
-    kFileWritePeriodMsFieldNumber = 9,
-    kMaxFileSizeBytesFieldNumber = 10,
-    kGuardrailOverridesFieldNumber = 11,
-    kDeferredStartFieldNumber = 12,
-    kFlushPeriodMsFieldNumber = 13,
-    kFlushTimeoutMsFieldNumber = 14,
-    kDataSourceStopTimeoutMsFieldNumber = 23,
-    kNotifyTraceurFieldNumber = 16,
-    kBugreportScoreFieldNumber = 30,
-    kTriggerConfigFieldNumber = 17,
-    kActivateTriggersFieldNumber = 18,
-    kIncrementalStateConfigFieldNumber = 21,
-    kAllowUserBuildTracingFieldNumber = 19,
-    kUniqueSessionNameFieldNumber = 22,
-    kCompressionTypeFieldNumber = 24,
-    kIncidentReportConfigFieldNumber = 25,
-    kStatsdLoggingFieldNumber = 31,
-    kTraceUuidMsbFieldNumber = 27,
-    kTraceUuidLsbFieldNumber = 28,
-    kTraceFilterFieldNumber = 32,
-  };
-
-  TraceConfig();
-  ~TraceConfig() override;
-  TraceConfig(TraceConfig&&) noexcept;
-  TraceConfig& operator=(TraceConfig&&);
-  TraceConfig(const TraceConfig&);
-  TraceConfig& operator=(const TraceConfig&);
-  bool operator==(const TraceConfig&) const;
-  bool operator!=(const TraceConfig& other) const { return !(*this == other); }
-
-  bool ParseFromArray(const void*, size_t) override;
-  std::string SerializeAsString() const override;
-  std::vector<uint8_t> SerializeAsArray() const override;
-  void Serialize(::protozero::Message*) const;
-
-  const std::vector<TraceConfig_BufferConfig>& buffers() const { return buffers_; }
-  std::vector<TraceConfig_BufferConfig>* mutable_buffers() { return &buffers_; }
-  int buffers_size() const;
-  void clear_buffers();
-  TraceConfig_BufferConfig* add_buffers();
-
-  const std::vector<TraceConfig_DataSource>& data_sources() const { return data_sources_; }
-  std::vector<TraceConfig_DataSource>* mutable_data_sources() { return &data_sources_; }
-  int data_sources_size() const;
-  void clear_data_sources();
-  TraceConfig_DataSource* add_data_sources();
-
-  bool has_builtin_data_sources() const { return _has_field_[20]; }
-  const TraceConfig_BuiltinDataSource& builtin_data_sources() const { return *builtin_data_sources_; }
-  TraceConfig_BuiltinDataSource* mutable_builtin_data_sources() { _has_field_.set(20); return builtin_data_sources_.get(); }
-
-  bool has_duration_ms() const { return _has_field_[3]; }
-  uint32_t duration_ms() const { return duration_ms_; }
-  void set_duration_ms(uint32_t value) { duration_ms_ = value; _has_field_.set(3); }
-
-  bool has_enable_extra_guardrails() const { return _has_field_[4]; }
-  bool enable_extra_guardrails() const { return enable_extra_guardrails_; }
-  void set_enable_extra_guardrails(bool value) { enable_extra_guardrails_ = value; _has_field_.set(4); }
-
-  bool has_lockdown_mode() const { return _has_field_[5]; }
-  TraceConfig_LockdownModeOperation lockdown_mode() const { return lockdown_mode_; }
-  void set_lockdown_mode(TraceConfig_LockdownModeOperation value) { lockdown_mode_ = value; _has_field_.set(5); }
-
-  const std::vector<TraceConfig_ProducerConfig>& producers() const { return producers_; }
-  std::vector<TraceConfig_ProducerConfig>* mutable_producers() { return &producers_; }
-  int producers_size() const;
-  void clear_producers();
-  TraceConfig_ProducerConfig* add_producers();
-
-  bool has_statsd_metadata() const { return _has_field_[7]; }
-  const TraceConfig_StatsdMetadata& statsd_metadata() const { return *statsd_metadata_; }
-  TraceConfig_StatsdMetadata* mutable_statsd_metadata() { _has_field_.set(7); return statsd_metadata_.get(); }
-
-  bool has_write_into_file() const { return _has_field_[8]; }
-  bool write_into_file() const { return write_into_file_; }
-  void set_write_into_file(bool value) { write_into_file_ = value; _has_field_.set(8); }
-
-  bool has_output_path() const { return _has_field_[29]; }
-  const std::string& output_path() const { return output_path_; }
-  void set_output_path(const std::string& value) { output_path_ = value; _has_field_.set(29); }
-
-  bool has_file_write_period_ms() const { return _has_field_[9]; }
-  uint32_t file_write_period_ms() const { return file_write_period_ms_; }
-  void set_file_write_period_ms(uint32_t value) { file_write_period_ms_ = value; _has_field_.set(9); }
-
-  bool has_max_file_size_bytes() const { return _has_field_[10]; }
-  uint64_t max_file_size_bytes() const { return max_file_size_bytes_; }
-  void set_max_file_size_bytes(uint64_t value) { max_file_size_bytes_ = value; _has_field_.set(10); }
-
-  bool has_guardrail_overrides() const { return _has_field_[11]; }
-  const TraceConfig_GuardrailOverrides& guardrail_overrides() const { return *guardrail_overrides_; }
-  TraceConfig_GuardrailOverrides* mutable_guardrail_overrides() { _has_field_.set(11); return guardrail_overrides_.get(); }
-
-  bool has_deferred_start() const { return _has_field_[12]; }
-  bool deferred_start() const { return deferred_start_; }
-  void set_deferred_start(bool value) { deferred_start_ = value; _has_field_.set(12); }
-
-  bool has_flush_period_ms() const { return _has_field_[13]; }
-  uint32_t flush_period_ms() const { return flush_period_ms_; }
-  void set_flush_period_ms(uint32_t value) { flush_period_ms_ = value; _has_field_.set(13); }
-
-  bool has_flush_timeout_ms() const { return _has_field_[14]; }
-  uint32_t flush_timeout_ms() const { return flush_timeout_ms_; }
-  void set_flush_timeout_ms(uint32_t value) { flush_timeout_ms_ = value; _has_field_.set(14); }
-
-  bool has_data_source_stop_timeout_ms() const { return _has_field_[23]; }
-  uint32_t data_source_stop_timeout_ms() const { return data_source_stop_timeout_ms_; }
-  void set_data_source_stop_timeout_ms(uint32_t value) { data_source_stop_timeout_ms_ = value; _has_field_.set(23); }
-
-  bool has_notify_traceur() const { return _has_field_[16]; }
-  bool notify_traceur() const { return notify_traceur_; }
-  void set_notify_traceur(bool value) { notify_traceur_ = value; _has_field_.set(16); }
-
-  bool has_bugreport_score() const { return _has_field_[30]; }
-  int32_t bugreport_score() const { return bugreport_score_; }
-  void set_bugreport_score(int32_t value) { bugreport_score_ = value; _has_field_.set(30); }
-
-  bool has_trigger_config() const { return _has_field_[17]; }
-  const TraceConfig_TriggerConfig& trigger_config() const { return *trigger_config_; }
-  TraceConfig_TriggerConfig* mutable_trigger_config() { _has_field_.set(17); return trigger_config_.get(); }
-
-  const std::vector<std::string>& activate_triggers() const { return activate_triggers_; }
-  std::vector<std::string>* mutable_activate_triggers() { return &activate_triggers_; }
-  int activate_triggers_size() const { return static_cast<int>(activate_triggers_.size()); }
-  void clear_activate_triggers() { activate_triggers_.clear(); }
-  void add_activate_triggers(std::string value) { activate_triggers_.emplace_back(value); }
-  std::string* add_activate_triggers() { activate_triggers_.emplace_back(); return &activate_triggers_.back(); }
-
-  bool has_incremental_state_config() const { return _has_field_[21]; }
-  const TraceConfig_IncrementalStateConfig& incremental_state_config() const { return *incremental_state_config_; }
-  TraceConfig_IncrementalStateConfig* mutable_incremental_state_config() { _has_field_.set(21); return incremental_state_config_.get(); }
-
-  bool has_allow_user_build_tracing() const { return _has_field_[19]; }
-  bool allow_user_build_tracing() const { return allow_user_build_tracing_; }
-  void set_allow_user_build_tracing(bool value) { allow_user_build_tracing_ = value; _has_field_.set(19); }
-
-  bool has_unique_session_name() const { return _has_field_[22]; }
-  const std::string& unique_session_name() const { return unique_session_name_; }
-  void set_unique_session_name(const std::string& value) { unique_session_name_ = value; _has_field_.set(22); }
-
-  bool has_compression_type() const { return _has_field_[24]; }
-  TraceConfig_CompressionType compression_type() const { return compression_type_; }
-  void set_compression_type(TraceConfig_CompressionType value) { compression_type_ = value; _has_field_.set(24); }
-
-  bool has_incident_report_config() const { return _has_field_[25]; }
-  const TraceConfig_IncidentReportConfig& incident_report_config() const { return *incident_report_config_; }
-  TraceConfig_IncidentReportConfig* mutable_incident_report_config() { _has_field_.set(25); return incident_report_config_.get(); }
-
-  bool has_statsd_logging() const { return _has_field_[31]; }
-  TraceConfig_StatsdLogging statsd_logging() const { return statsd_logging_; }
-  void set_statsd_logging(TraceConfig_StatsdLogging value) { statsd_logging_ = value; _has_field_.set(31); }
-
-  bool has_trace_uuid_msb() const { return _has_field_[27]; }
-  int64_t trace_uuid_msb() const { return trace_uuid_msb_; }
-  void set_trace_uuid_msb(int64_t value) { trace_uuid_msb_ = value; _has_field_.set(27); }
-
-  bool has_trace_uuid_lsb() const { return _has_field_[28]; }
-  int64_t trace_uuid_lsb() const { return trace_uuid_lsb_; }
-  void set_trace_uuid_lsb(int64_t value) { trace_uuid_lsb_ = value; _has_field_.set(28); }
-
-  bool has_trace_filter() const { return _has_field_[32]; }
-  const TraceConfig_TraceFilter& trace_filter() const { return *trace_filter_; }
-  TraceConfig_TraceFilter* mutable_trace_filter() { _has_field_.set(32); return trace_filter_.get(); }
-
- private:
-  std::vector<TraceConfig_BufferConfig> buffers_;
-  std::vector<TraceConfig_DataSource> data_sources_;
-  ::protozero::CopyablePtr<TraceConfig_BuiltinDataSource> builtin_data_sources_;
-  uint32_t duration_ms_{};
-  bool enable_extra_guardrails_{};
-  TraceConfig_LockdownModeOperation lockdown_mode_{};
-  std::vector<TraceConfig_ProducerConfig> producers_;
-  ::protozero::CopyablePtr<TraceConfig_StatsdMetadata> statsd_metadata_;
-  bool write_into_file_{};
-  std::string output_path_{};
-  uint32_t file_write_period_ms_{};
-  uint64_t max_file_size_bytes_{};
-  ::protozero::CopyablePtr<TraceConfig_GuardrailOverrides> guardrail_overrides_;
-  bool deferred_start_{};
-  uint32_t flush_period_ms_{};
-  uint32_t flush_timeout_ms_{};
-  uint32_t data_source_stop_timeout_ms_{};
-  bool notify_traceur_{};
-  int32_t bugreport_score_{};
-  ::protozero::CopyablePtr<TraceConfig_TriggerConfig> trigger_config_;
-  std::vector<std::string> activate_triggers_;
-  ::protozero::CopyablePtr<TraceConfig_IncrementalStateConfig> incremental_state_config_;
-  bool allow_user_build_tracing_{};
-  std::string unique_session_name_{};
-  TraceConfig_CompressionType compression_type_{};
-  ::protozero::CopyablePtr<TraceConfig_IncidentReportConfig> incident_report_config_;
-  TraceConfig_StatsdLogging statsd_logging_{};
-  int64_t trace_uuid_msb_{};
-  int64_t trace_uuid_lsb_{};
-  ::protozero::CopyablePtr<TraceConfig_TraceFilter> trace_filter_;
-
-  // Allows to preserve unknown protobuf fields for compatibility
-  // with future versions of .proto files.
-  std::string unknown_fields_;
-
-  std::bitset<33> _has_field_{};
-};
-
-
-class PERFETTO_EXPORT TraceConfig_TraceFilter : public ::protozero::CppMessageObj {
- public:
-  enum FieldNumbers {
-    kBytecodeFieldNumber = 1,
-  };
-
-  TraceConfig_TraceFilter();
-  ~TraceConfig_TraceFilter() override;
-  TraceConfig_TraceFilter(TraceConfig_TraceFilter&&) noexcept;
-  TraceConfig_TraceFilter& operator=(TraceConfig_TraceFilter&&);
-  TraceConfig_TraceFilter(const TraceConfig_TraceFilter&);
-  TraceConfig_TraceFilter& operator=(const TraceConfig_TraceFilter&);
-  bool operator==(const TraceConfig_TraceFilter&) const;
-  bool operator!=(const TraceConfig_TraceFilter& other) const { return !(*this == other); }
-
-  bool ParseFromArray(const void*, size_t) override;
-  std::string SerializeAsString() const override;
-  std::vector<uint8_t> SerializeAsArray() const override;
-  void Serialize(::protozero::Message*) const;
-
-  bool has_bytecode() const { return _has_field_[1]; }
-  const std::string& bytecode() const { return bytecode_; }
-  void set_bytecode(const std::string& value) { bytecode_ = value; _has_field_.set(1); }
-  void set_bytecode(const void* p, size_t s) { bytecode_.assign(reinterpret_cast<const char*>(p), s); _has_field_.set(1); }
-
- private:
-  std::string bytecode_{};
-
-  // Allows to preserve unknown protobuf fields for compatibility
-  // with future versions of .proto files.
-  std::string unknown_fields_;
-
-  std::bitset<2> _has_field_{};
-};
-
-
-class PERFETTO_EXPORT TraceConfig_IncidentReportConfig : public ::protozero::CppMessageObj {
- public:
-  enum FieldNumbers {
-    kDestinationPackageFieldNumber = 1,
-    kDestinationClassFieldNumber = 2,
-    kPrivacyLevelFieldNumber = 3,
-    kSkipIncidentdFieldNumber = 5,
-    kSkipDropboxFieldNumber = 4,
-  };
-
-  TraceConfig_IncidentReportConfig();
-  ~TraceConfig_IncidentReportConfig() override;
-  TraceConfig_IncidentReportConfig(TraceConfig_IncidentReportConfig&&) noexcept;
-  TraceConfig_IncidentReportConfig& operator=(TraceConfig_IncidentReportConfig&&);
-  TraceConfig_IncidentReportConfig(const TraceConfig_IncidentReportConfig&);
-  TraceConfig_IncidentReportConfig& operator=(const TraceConfig_IncidentReportConfig&);
-  bool operator==(const TraceConfig_IncidentReportConfig&) const;
-  bool operator!=(const TraceConfig_IncidentReportConfig& other) const { return !(*this == other); }
-
-  bool ParseFromArray(const void*, size_t) override;
-  std::string SerializeAsString() const override;
-  std::vector<uint8_t> SerializeAsArray() const override;
-  void Serialize(::protozero::Message*) const;
-
-  bool has_destination_package() const { return _has_field_[1]; }
-  const std::string& destination_package() const { return destination_package_; }
-  void set_destination_package(const std::string& value) { destination_package_ = value; _has_field_.set(1); }
-
-  bool has_destination_class() const { return _has_field_[2]; }
-  const std::string& destination_class() const { return destination_class_; }
-  void set_destination_class(const std::string& value) { destination_class_ = value; _has_field_.set(2); }
-
-  bool has_privacy_level() const { return _has_field_[3]; }
-  int32_t privacy_level() const { return privacy_level_; }
-  void set_privacy_level(int32_t value) { privacy_level_ = value; _has_field_.set(3); }
-
-  bool has_skip_incidentd() const { return _has_field_[5]; }
-  bool skip_incidentd() const { return skip_incidentd_; }
-  void set_skip_incidentd(bool value) { skip_incidentd_ = value; _has_field_.set(5); }
-
-  bool has_skip_dropbox() const { return _has_field_[4]; }
-  bool skip_dropbox() const { return skip_dropbox_; }
-  void set_skip_dropbox(bool value) { skip_dropbox_ = value; _has_field_.set(4); }
-
- private:
-  std::string destination_package_{};
-  std::string destination_class_{};
-  int32_t privacy_level_{};
-  bool skip_incidentd_{};
-  bool skip_dropbox_{};
-
-  // Allows to preserve unknown protobuf fields for compatibility
-  // with future versions of .proto files.
-  std::string unknown_fields_;
-
-  std::bitset<6> _has_field_{};
-};
-
-
-class PERFETTO_EXPORT TraceConfig_IncrementalStateConfig : public ::protozero::CppMessageObj {
- public:
-  enum FieldNumbers {
-    kClearPeriodMsFieldNumber = 1,
-  };
-
-  TraceConfig_IncrementalStateConfig();
-  ~TraceConfig_IncrementalStateConfig() override;
-  TraceConfig_IncrementalStateConfig(TraceConfig_IncrementalStateConfig&&) noexcept;
-  TraceConfig_IncrementalStateConfig& operator=(TraceConfig_IncrementalStateConfig&&);
-  TraceConfig_IncrementalStateConfig(const TraceConfig_IncrementalStateConfig&);
-  TraceConfig_IncrementalStateConfig& operator=(const TraceConfig_IncrementalStateConfig&);
-  bool operator==(const TraceConfig_IncrementalStateConfig&) const;
-  bool operator!=(const TraceConfig_IncrementalStateConfig& other) const { return !(*this == other); }
-
-  bool ParseFromArray(const void*, size_t) override;
-  std::string SerializeAsString() const override;
-  std::vector<uint8_t> SerializeAsArray() const override;
-  void Serialize(::protozero::Message*) const;
-
-  bool has_clear_period_ms() const { return _has_field_[1]; }
-  uint32_t clear_period_ms() const { return clear_period_ms_; }
-  void set_clear_period_ms(uint32_t value) { clear_period_ms_ = value; _has_field_.set(1); }
-
- private:
-  uint32_t clear_period_ms_{};
-
-  // Allows to preserve unknown protobuf fields for compatibility
-  // with future versions of .proto files.
-  std::string unknown_fields_;
-
-  std::bitset<2> _has_field_{};
-};
-
-
-class PERFETTO_EXPORT TraceConfig_TriggerConfig : public ::protozero::CppMessageObj {
- public:
-  using Trigger = TraceConfig_TriggerConfig_Trigger;
-  using TriggerMode = TraceConfig_TriggerConfig_TriggerMode;
-  static constexpr auto UNSPECIFIED = TraceConfig_TriggerConfig_TriggerMode_UNSPECIFIED;
-  static constexpr auto START_TRACING = TraceConfig_TriggerConfig_TriggerMode_START_TRACING;
-  static constexpr auto STOP_TRACING = TraceConfig_TriggerConfig_TriggerMode_STOP_TRACING;
-  static constexpr auto TriggerMode_MIN = TraceConfig_TriggerConfig_TriggerMode_UNSPECIFIED;
-  static constexpr auto TriggerMode_MAX = TraceConfig_TriggerConfig_TriggerMode_STOP_TRACING;
-  enum FieldNumbers {
-    kTriggerModeFieldNumber = 1,
-    kTriggersFieldNumber = 2,
-    kTriggerTimeoutMsFieldNumber = 3,
-  };
-
-  TraceConfig_TriggerConfig();
-  ~TraceConfig_TriggerConfig() override;
-  TraceConfig_TriggerConfig(TraceConfig_TriggerConfig&&) noexcept;
-  TraceConfig_TriggerConfig& operator=(TraceConfig_TriggerConfig&&);
-  TraceConfig_TriggerConfig(const TraceConfig_TriggerConfig&);
-  TraceConfig_TriggerConfig& operator=(const TraceConfig_TriggerConfig&);
-  bool operator==(const TraceConfig_TriggerConfig&) const;
-  bool operator!=(const TraceConfig_TriggerConfig& other) const { return !(*this == other); }
-
-  bool ParseFromArray(const void*, size_t) override;
-  std::string SerializeAsString() const override;
-  std::vector<uint8_t> SerializeAsArray() const override;
-  void Serialize(::protozero::Message*) const;
-
-  bool has_trigger_mode() const { return _has_field_[1]; }
-  TraceConfig_TriggerConfig_TriggerMode trigger_mode() const { return trigger_mode_; }
-  void set_trigger_mode(TraceConfig_TriggerConfig_TriggerMode value) { trigger_mode_ = value; _has_field_.set(1); }
-
-  const std::vector<TraceConfig_TriggerConfig_Trigger>& triggers() const { return triggers_; }
-  std::vector<TraceConfig_TriggerConfig_Trigger>* mutable_triggers() { return &triggers_; }
-  int triggers_size() const;
-  void clear_triggers();
-  TraceConfig_TriggerConfig_Trigger* add_triggers();
-
-  bool has_trigger_timeout_ms() const { return _has_field_[3]; }
-  uint32_t trigger_timeout_ms() const { return trigger_timeout_ms_; }
-  void set_trigger_timeout_ms(uint32_t value) { trigger_timeout_ms_ = value; _has_field_.set(3); }
-
- private:
-  TraceConfig_TriggerConfig_TriggerMode trigger_mode_{};
-  std::vector<TraceConfig_TriggerConfig_Trigger> triggers_;
-  uint32_t trigger_timeout_ms_{};
-
-  // Allows to preserve unknown protobuf fields for compatibility
-  // with future versions of .proto files.
-  std::string unknown_fields_;
-
-  std::bitset<4> _has_field_{};
-};
-
-
-class PERFETTO_EXPORT TraceConfig_TriggerConfig_Trigger : public ::protozero::CppMessageObj {
- public:
-  enum FieldNumbers {
-    kNameFieldNumber = 1,
-    kProducerNameRegexFieldNumber = 2,
-    kStopDelayMsFieldNumber = 3,
-    kMaxPer24HFieldNumber = 4,
-    kSkipProbabilityFieldNumber = 5,
-  };
-
-  TraceConfig_TriggerConfig_Trigger();
-  ~TraceConfig_TriggerConfig_Trigger() override;
-  TraceConfig_TriggerConfig_Trigger(TraceConfig_TriggerConfig_Trigger&&) noexcept;
-  TraceConfig_TriggerConfig_Trigger& operator=(TraceConfig_TriggerConfig_Trigger&&);
-  TraceConfig_TriggerConfig_Trigger(const TraceConfig_TriggerConfig_Trigger&);
-  TraceConfig_TriggerConfig_Trigger& operator=(const TraceConfig_TriggerConfig_Trigger&);
-  bool operator==(const TraceConfig_TriggerConfig_Trigger&) const;
-  bool operator!=(const TraceConfig_TriggerConfig_Trigger& other) const { return !(*this == other); }
-
-  bool ParseFromArray(const void*, size_t) override;
-  std::string SerializeAsString() const override;
-  std::vector<uint8_t> SerializeAsArray() const override;
-  void Serialize(::protozero::Message*) const;
-
-  bool has_name() const { return _has_field_[1]; }
-  const std::string& name() const { return name_; }
-  void set_name(const std::string& value) { name_ = value; _has_field_.set(1); }
-
-  bool has_producer_name_regex() const { return _has_field_[2]; }
-  const std::string& producer_name_regex() const { return producer_name_regex_; }
-  void set_producer_name_regex(const std::string& value) { producer_name_regex_ = value; _has_field_.set(2); }
-
-  bool has_stop_delay_ms() const { return _has_field_[3]; }
-  uint32_t stop_delay_ms() const { return stop_delay_ms_; }
-  void set_stop_delay_ms(uint32_t value) { stop_delay_ms_ = value; _has_field_.set(3); }
-
-  bool has_max_per_24_h() const { return _has_field_[4]; }
-  uint32_t max_per_24_h() const { return max_per_24_h_; }
-  void set_max_per_24_h(uint32_t value) { max_per_24_h_ = value; _has_field_.set(4); }
-
-  bool has_skip_probability() const { return _has_field_[5]; }
-  double skip_probability() const { return skip_probability_; }
-  void set_skip_probability(double value) { skip_probability_ = value; _has_field_.set(5); }
-
- private:
-  std::string name_{};
-  std::string producer_name_regex_{};
-  uint32_t stop_delay_ms_{};
-  uint32_t max_per_24_h_{};
-  double skip_probability_{};
-
-  // Allows to preserve unknown protobuf fields for compatibility
-  // with future versions of .proto files.
-  std::string unknown_fields_;
-
-  std::bitset<6> _has_field_{};
-};
-
-
-class PERFETTO_EXPORT TraceConfig_GuardrailOverrides : public ::protozero::CppMessageObj {
- public:
-  enum FieldNumbers {
-    kMaxUploadPerDayBytesFieldNumber = 1,
-  };
-
-  TraceConfig_GuardrailOverrides();
-  ~TraceConfig_GuardrailOverrides() override;
-  TraceConfig_GuardrailOverrides(TraceConfig_GuardrailOverrides&&) noexcept;
-  TraceConfig_GuardrailOverrides& operator=(TraceConfig_GuardrailOverrides&&);
-  TraceConfig_GuardrailOverrides(const TraceConfig_GuardrailOverrides&);
-  TraceConfig_GuardrailOverrides& operator=(const TraceConfig_GuardrailOverrides&);
-  bool operator==(const TraceConfig_GuardrailOverrides&) const;
-  bool operator!=(const TraceConfig_GuardrailOverrides& other) const { return !(*this == other); }
-
-  bool ParseFromArray(const void*, size_t) override;
-  std::string SerializeAsString() const override;
-  std::vector<uint8_t> SerializeAsArray() const override;
-  void Serialize(::protozero::Message*) const;
-
-  bool has_max_upload_per_day_bytes() const { return _has_field_[1]; }
-  uint64_t max_upload_per_day_bytes() const { return max_upload_per_day_bytes_; }
-  void set_max_upload_per_day_bytes(uint64_t value) { max_upload_per_day_bytes_ = value; _has_field_.set(1); }
-
- private:
-  uint64_t max_upload_per_day_bytes_{};
-
-  // Allows to preserve unknown protobuf fields for compatibility
-  // with future versions of .proto files.
-  std::string unknown_fields_;
-
-  std::bitset<2> _has_field_{};
-};
-
-
-class PERFETTO_EXPORT TraceConfig_StatsdMetadata : public ::protozero::CppMessageObj {
- public:
-  enum FieldNumbers {
-    kTriggeringAlertIdFieldNumber = 1,
-    kTriggeringConfigUidFieldNumber = 2,
-    kTriggeringConfigIdFieldNumber = 3,
-    kTriggeringSubscriptionIdFieldNumber = 4,
-  };
-
-  TraceConfig_StatsdMetadata();
-  ~TraceConfig_StatsdMetadata() override;
-  TraceConfig_StatsdMetadata(TraceConfig_StatsdMetadata&&) noexcept;
-  TraceConfig_StatsdMetadata& operator=(TraceConfig_StatsdMetadata&&);
-  TraceConfig_StatsdMetadata(const TraceConfig_StatsdMetadata&);
-  TraceConfig_StatsdMetadata& operator=(const TraceConfig_StatsdMetadata&);
-  bool operator==(const TraceConfig_StatsdMetadata&) const;
-  bool operator!=(const TraceConfig_StatsdMetadata& other) const { return !(*this == other); }
-
-  bool ParseFromArray(const void*, size_t) override;
-  std::string SerializeAsString() const override;
-  std::vector<uint8_t> SerializeAsArray() const override;
-  void Serialize(::protozero::Message*) const;
-
-  bool has_triggering_alert_id() const { return _has_field_[1]; }
-  int64_t triggering_alert_id() const { return triggering_alert_id_; }
-  void set_triggering_alert_id(int64_t value) { triggering_alert_id_ = value; _has_field_.set(1); }
-
-  bool has_triggering_config_uid() const { return _has_field_[2]; }
-  int32_t triggering_config_uid() const { return triggering_config_uid_; }
-  void set_triggering_config_uid(int32_t value) { triggering_config_uid_ = value; _has_field_.set(2); }
-
-  bool has_triggering_config_id() const { return _has_field_[3]; }
-  int64_t triggering_config_id() const { return triggering_config_id_; }
-  void set_triggering_config_id(int64_t value) { triggering_config_id_ = value; _has_field_.set(3); }
-
-  bool has_triggering_subscription_id() const { return _has_field_[4]; }
-  int64_t triggering_subscription_id() const { return triggering_subscription_id_; }
-  void set_triggering_subscription_id(int64_t value) { triggering_subscription_id_ = value; _has_field_.set(4); }
-
- private:
-  int64_t triggering_alert_id_{};
-  int32_t triggering_config_uid_{};
-  int64_t triggering_config_id_{};
-  int64_t triggering_subscription_id_{};
-
-  // Allows to preserve unknown protobuf fields for compatibility
-  // with future versions of .proto files.
-  std::string unknown_fields_;
-
-  std::bitset<5> _has_field_{};
-};
-
-
-class PERFETTO_EXPORT TraceConfig_ProducerConfig : public ::protozero::CppMessageObj {
- public:
-  enum FieldNumbers {
-    kProducerNameFieldNumber = 1,
-    kShmSizeKbFieldNumber = 2,
-    kPageSizeKbFieldNumber = 3,
-  };
-
-  TraceConfig_ProducerConfig();
-  ~TraceConfig_ProducerConfig() override;
-  TraceConfig_ProducerConfig(TraceConfig_ProducerConfig&&) noexcept;
-  TraceConfig_ProducerConfig& operator=(TraceConfig_ProducerConfig&&);
-  TraceConfig_ProducerConfig(const TraceConfig_ProducerConfig&);
-  TraceConfig_ProducerConfig& operator=(const TraceConfig_ProducerConfig&);
-  bool operator==(const TraceConfig_ProducerConfig&) const;
-  bool operator!=(const TraceConfig_ProducerConfig& other) const { return !(*this == other); }
-
-  bool ParseFromArray(const void*, size_t) override;
-  std::string SerializeAsString() const override;
-  std::vector<uint8_t> SerializeAsArray() const override;
-  void Serialize(::protozero::Message*) const;
-
-  bool has_producer_name() const { return _has_field_[1]; }
-  const std::string& producer_name() const { return producer_name_; }
-  void set_producer_name(const std::string& value) { producer_name_ = value; _has_field_.set(1); }
-
-  bool has_shm_size_kb() const { return _has_field_[2]; }
-  uint32_t shm_size_kb() const { return shm_size_kb_; }
-  void set_shm_size_kb(uint32_t value) { shm_size_kb_ = value; _has_field_.set(2); }
-
-  bool has_page_size_kb() const { return _has_field_[3]; }
-  uint32_t page_size_kb() const { return page_size_kb_; }
-  void set_page_size_kb(uint32_t value) { page_size_kb_ = value; _has_field_.set(3); }
-
- private:
-  std::string producer_name_{};
-  uint32_t shm_size_kb_{};
-  uint32_t page_size_kb_{};
-
-  // Allows to preserve unknown protobuf fields for compatibility
-  // with future versions of .proto files.
-  std::string unknown_fields_;
-
-  std::bitset<4> _has_field_{};
-};
-
-
-class PERFETTO_EXPORT TraceConfig_BuiltinDataSource : public ::protozero::CppMessageObj {
- public:
-  enum FieldNumbers {
-    kDisableClockSnapshottingFieldNumber = 1,
-    kDisableTraceConfigFieldNumber = 2,
-    kDisableSystemInfoFieldNumber = 3,
-    kDisableServiceEventsFieldNumber = 4,
-    kPrimaryTraceClockFieldNumber = 5,
-    kSnapshotIntervalMsFieldNumber = 6,
-    kPreferSuspendClockForSnapshotFieldNumber = 7,
-  };
-
-  TraceConfig_BuiltinDataSource();
-  ~TraceConfig_BuiltinDataSource() override;
-  TraceConfig_BuiltinDataSource(TraceConfig_BuiltinDataSource&&) noexcept;
-  TraceConfig_BuiltinDataSource& operator=(TraceConfig_BuiltinDataSource&&);
-  TraceConfig_BuiltinDataSource(const TraceConfig_BuiltinDataSource&);
-  TraceConfig_BuiltinDataSource& operator=(const TraceConfig_BuiltinDataSource&);
-  bool operator==(const TraceConfig_BuiltinDataSource&) const;
-  bool operator!=(const TraceConfig_BuiltinDataSource& other) const { return !(*this == other); }
-
-  bool ParseFromArray(const void*, size_t) override;
-  std::string SerializeAsString() const override;
-  std::vector<uint8_t> SerializeAsArray() const override;
-  void Serialize(::protozero::Message*) const;
-
-  bool has_disable_clock_snapshotting() const { return _has_field_[1]; }
-  bool disable_clock_snapshotting() const { return disable_clock_snapshotting_; }
-  void set_disable_clock_snapshotting(bool value) { disable_clock_snapshotting_ = value; _has_field_.set(1); }
-
-  bool has_disable_trace_config() const { return _has_field_[2]; }
-  bool disable_trace_config() const { return disable_trace_config_; }
-  void set_disable_trace_config(bool value) { disable_trace_config_ = value; _has_field_.set(2); }
-
-  bool has_disable_system_info() const { return _has_field_[3]; }
-  bool disable_system_info() const { return disable_system_info_; }
-  void set_disable_system_info(bool value) { disable_system_info_ = value; _has_field_.set(3); }
-
-  bool has_disable_service_events() const { return _has_field_[4]; }
-  bool disable_service_events() const { return disable_service_events_; }
-  void set_disable_service_events(bool value) { disable_service_events_ = value; _has_field_.set(4); }
-
-  bool has_primary_trace_clock() const { return _has_field_[5]; }
-  BuiltinClock primary_trace_clock() const { return primary_trace_clock_; }
-  void set_primary_trace_clock(BuiltinClock value) { primary_trace_clock_ = value; _has_field_.set(5); }
-
-  bool has_snapshot_interval_ms() const { return _has_field_[6]; }
-  uint32_t snapshot_interval_ms() const { return snapshot_interval_ms_; }
-  void set_snapshot_interval_ms(uint32_t value) { snapshot_interval_ms_ = value; _has_field_.set(6); }
-
-  bool has_prefer_suspend_clock_for_snapshot() const { return _has_field_[7]; }
-  bool prefer_suspend_clock_for_snapshot() const { return prefer_suspend_clock_for_snapshot_; }
-  void set_prefer_suspend_clock_for_snapshot(bool value) { prefer_suspend_clock_for_snapshot_ = value; _has_field_.set(7); }
-
- private:
-  bool disable_clock_snapshotting_{};
-  bool disable_trace_config_{};
-  bool disable_system_info_{};
-  bool disable_service_events_{};
-  BuiltinClock primary_trace_clock_{};
-  uint32_t snapshot_interval_ms_{};
-  bool prefer_suspend_clock_for_snapshot_{};
-
-  // Allows to preserve unknown protobuf fields for compatibility
-  // with future versions of .proto files.
-  std::string unknown_fields_;
-
-  std::bitset<8> _has_field_{};
-};
-
-
-class PERFETTO_EXPORT TraceConfig_DataSource : public ::protozero::CppMessageObj {
- public:
-  enum FieldNumbers {
-    kConfigFieldNumber = 1,
-    kProducerNameFilterFieldNumber = 2,
-    kProducerNameRegexFilterFieldNumber = 3,
-  };
-
-  TraceConfig_DataSource();
-  ~TraceConfig_DataSource() override;
-  TraceConfig_DataSource(TraceConfig_DataSource&&) noexcept;
-  TraceConfig_DataSource& operator=(TraceConfig_DataSource&&);
-  TraceConfig_DataSource(const TraceConfig_DataSource&);
-  TraceConfig_DataSource& operator=(const TraceConfig_DataSource&);
-  bool operator==(const TraceConfig_DataSource&) const;
-  bool operator!=(const TraceConfig_DataSource& other) const { return !(*this == other); }
-
-  bool ParseFromArray(const void*, size_t) override;
-  std::string SerializeAsString() const override;
-  std::vector<uint8_t> SerializeAsArray() const override;
-  void Serialize(::protozero::Message*) const;
-
-  bool has_config() const { return _has_field_[1]; }
-  const DataSourceConfig& config() const { return *config_; }
-  DataSourceConfig* mutable_config() { _has_field_.set(1); return config_.get(); }
-
-  const std::vector<std::string>& producer_name_filter() const { return producer_name_filter_; }
-  std::vector<std::string>* mutable_producer_name_filter() { return &producer_name_filter_; }
-  int producer_name_filter_size() const { return static_cast<int>(producer_name_filter_.size()); }
-  void clear_producer_name_filter() { producer_name_filter_.clear(); }
-  void add_producer_name_filter(std::string value) { producer_name_filter_.emplace_back(value); }
-  std::string* add_producer_name_filter() { producer_name_filter_.emplace_back(); return &producer_name_filter_.back(); }
-
-  const std::vector<std::string>& producer_name_regex_filter() const { return producer_name_regex_filter_; }
-  std::vector<std::string>* mutable_producer_name_regex_filter() { return &producer_name_regex_filter_; }
-  int producer_name_regex_filter_size() const { return static_cast<int>(producer_name_regex_filter_.size()); }
-  void clear_producer_name_regex_filter() { producer_name_regex_filter_.clear(); }
-  void add_producer_name_regex_filter(std::string value) { producer_name_regex_filter_.emplace_back(value); }
-  std::string* add_producer_name_regex_filter() { producer_name_regex_filter_.emplace_back(); return &producer_name_regex_filter_.back(); }
-
- private:
-  ::protozero::CopyablePtr<DataSourceConfig> config_;
-  std::vector<std::string> producer_name_filter_;
-  std::vector<std::string> producer_name_regex_filter_;
-
-  // Allows to preserve unknown protobuf fields for compatibility
-  // with future versions of .proto files.
-  std::string unknown_fields_;
-
-  std::bitset<4> _has_field_{};
-};
-
-
-class PERFETTO_EXPORT TraceConfig_BufferConfig : public ::protozero::CppMessageObj {
- public:
-  using FillPolicy = TraceConfig_BufferConfig_FillPolicy;
-  static constexpr auto UNSPECIFIED = TraceConfig_BufferConfig_FillPolicy_UNSPECIFIED;
-  static constexpr auto RING_BUFFER = TraceConfig_BufferConfig_FillPolicy_RING_BUFFER;
-  static constexpr auto DISCARD = TraceConfig_BufferConfig_FillPolicy_DISCARD;
-  static constexpr auto FillPolicy_MIN = TraceConfig_BufferConfig_FillPolicy_UNSPECIFIED;
-  static constexpr auto FillPolicy_MAX = TraceConfig_BufferConfig_FillPolicy_DISCARD;
-  enum FieldNumbers {
-    kSizeKbFieldNumber = 1,
-    kFillPolicyFieldNumber = 4,
-  };
-
-  TraceConfig_BufferConfig();
-  ~TraceConfig_BufferConfig() override;
-  TraceConfig_BufferConfig(TraceConfig_BufferConfig&&) noexcept;
-  TraceConfig_BufferConfig& operator=(TraceConfig_BufferConfig&&);
-  TraceConfig_BufferConfig(const TraceConfig_BufferConfig&);
-  TraceConfig_BufferConfig& operator=(const TraceConfig_BufferConfig&);
-  bool operator==(const TraceConfig_BufferConfig&) const;
-  bool operator!=(const TraceConfig_BufferConfig& other) const { return !(*this == other); }
-
-  bool ParseFromArray(const void*, size_t) override;
-  std::string SerializeAsString() const override;
-  std::vector<uint8_t> SerializeAsArray() const override;
-  void Serialize(::protozero::Message*) const;
-
-  bool has_size_kb() const { return _has_field_[1]; }
-  uint32_t size_kb() const { return size_kb_; }
-  void set_size_kb(uint32_t value) { size_kb_ = value; _has_field_.set(1); }
-
-  bool has_fill_policy() const { return _has_field_[4]; }
-  TraceConfig_BufferConfig_FillPolicy fill_policy() const { return fill_policy_; }
-  void set_fill_policy(TraceConfig_BufferConfig_FillPolicy value) { fill_policy_ = value; _has_field_.set(4); }
-
- private:
-  uint32_t size_kb_{};
-  TraceConfig_BufferConfig_FillPolicy fill_policy_{};
-
-  // Allows to preserve unknown protobuf fields for compatibility
-  // with future versions of .proto files.
-  std::string unknown_fields_;
-
-  std::bitset<5> _has_field_{};
-};
-
-}  // namespace perfetto
-}  // namespace protos
-}  // namespace gen
-
-#endif  // PERFETTO_PROTOS_PROTOS_PERFETTO_CONFIG_TRACE_CONFIG_PROTO_CPP_H_
-// gen_amalgamated begin header: gen/protos/perfetto/ipc/consumer_port.gen.h
-// DO NOT EDIT. Autogenerated by Perfetto cppgen_plugin
-#ifndef PERFETTO_PROTOS_PROTOS_PERFETTO_IPC_CONSUMER_PORT_PROTO_CPP_H_
-#define PERFETTO_PROTOS_PROTOS_PERFETTO_IPC_CONSUMER_PORT_PROTO_CPP_H_
-
-#include <stdint.h>
-#include <bitset>
-#include <vector>
-#include <string>
-#include <type_traits>
-
-// gen_amalgamated expanded: #include "perfetto/protozero/cpp_message_obj.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/copyable_ptr.h"
-// gen_amalgamated expanded: #include "perfetto/base/export.h"
-
-namespace perfetto {
-namespace protos {
-namespace gen {
-class SaveTraceForBugreportResponse;
-class SaveTraceForBugreportRequest;
-class QueryCapabilitiesResponse;
-class TracingServiceCapabilities;
-class QueryCapabilitiesRequest;
-class QueryServiceStateResponse;
-class TracingServiceState;
-class TracingServiceState_DataSource;
-class DataSourceDescriptor;
-class TracingServiceState_Producer;
-class QueryServiceStateRequest;
-class ObserveEventsResponse;
-class ObservableEvents;
-class ObservableEvents_DataSourceInstanceStateChange;
-class ObserveEventsRequest;
-class GetTraceStatsResponse;
-class TraceStats;
-class TraceStats_FilterStats;
-class TraceStats_BufferStats;
-class GetTraceStatsRequest;
-class AttachResponse;
-class TraceConfig;
-class TraceConfig_TraceFilter;
-class TraceConfig_IncidentReportConfig;
-class TraceConfig_IncrementalStateConfig;
-class TraceConfig_TriggerConfig;
-class TraceConfig_TriggerConfig_Trigger;
-class TraceConfig_GuardrailOverrides;
-class TraceConfig_StatsdMetadata;
-class TraceConfig_ProducerConfig;
-class TraceConfig_BuiltinDataSource;
-class TraceConfig_DataSource;
-class DataSourceConfig;
-class TestConfig;
-class TestConfig_DummyFields;
-class InterceptorConfig;
-class ChromeConfig;
-class TraceConfig_BufferConfig;
-class AttachRequest;
-class DetachResponse;
-class DetachRequest;
-class FlushResponse;
-class FlushRequest;
-class FreeBuffersResponse;
-class FreeBuffersRequest;
-class ReadBuffersResponse;
-class ReadBuffersResponse_Slice;
-class ReadBuffersRequest;
-class DisableTracingResponse;
-class DisableTracingRequest;
-class ChangeTraceConfigResponse;
-class ChangeTraceConfigRequest;
-class StartTracingResponse;
-class StartTracingRequest;
-class EnableTracingResponse;
-class EnableTracingRequest;
-enum ObservableEvents_Type : int;
-enum ObservableEvents_DataSourceInstanceState : int;
-enum TraceConfig_LockdownModeOperation : int;
-enum TraceConfig_CompressionType : int;
-enum TraceConfig_StatsdLogging : int;
-enum TraceConfig_TriggerConfig_TriggerMode : int;
-enum BuiltinClock : int;
-enum DataSourceConfig_SessionInitiator : int;
-enum ChromeConfig_ClientPriority : int;
-enum TraceConfig_BufferConfig_FillPolicy : int;
-}  // namespace perfetto
-}  // namespace protos
-}  // namespace gen
-
-namespace protozero {
-class Message;
-}  // namespace protozero
-
-namespace perfetto {
-namespace protos {
-namespace gen {
-
-class PERFETTO_EXPORT SaveTraceForBugreportResponse : public ::protozero::CppMessageObj {
- public:
-  enum FieldNumbers {
-    kSuccessFieldNumber = 1,
-    kMsgFieldNumber = 2,
-  };
-
-  SaveTraceForBugreportResponse();
-  ~SaveTraceForBugreportResponse() override;
-  SaveTraceForBugreportResponse(SaveTraceForBugreportResponse&&) noexcept;
-  SaveTraceForBugreportResponse& operator=(SaveTraceForBugreportResponse&&);
-  SaveTraceForBugreportResponse(const SaveTraceForBugreportResponse&);
-  SaveTraceForBugreportResponse& operator=(const SaveTraceForBugreportResponse&);
-  bool operator==(const SaveTraceForBugreportResponse&) const;
-  bool operator!=(const SaveTraceForBugreportResponse& other) const { return !(*this == other); }
-
-  bool ParseFromArray(const void*, size_t) override;
-  std::string SerializeAsString() const override;
-  std::vector<uint8_t> SerializeAsArray() const override;
-  void Serialize(::protozero::Message*) const;
-
-  bool has_success() const { return _has_field_[1]; }
-  bool success() const { return success_; }
-  void set_success(bool value) { success_ = value; _has_field_.set(1); }
-
-  bool has_msg() const { return _has_field_[2]; }
-  const std::string& msg() const { return msg_; }
-  void set_msg(const std::string& value) { msg_ = value; _has_field_.set(2); }
-
- private:
-  bool success_{};
-  std::string msg_{};
-
-  // Allows to preserve unknown protobuf fields for compatibility
-  // with future versions of .proto files.
-  std::string unknown_fields_;
-
-  std::bitset<3> _has_field_{};
-};
-
-
-class PERFETTO_EXPORT SaveTraceForBugreportRequest : public ::protozero::CppMessageObj {
- public:
-  enum FieldNumbers {
-  };
-
-  SaveTraceForBugreportRequest();
-  ~SaveTraceForBugreportRequest() override;
-  SaveTraceForBugreportRequest(SaveTraceForBugreportRequest&&) noexcept;
-  SaveTraceForBugreportRequest& operator=(SaveTraceForBugreportRequest&&);
-  SaveTraceForBugreportRequest(const SaveTraceForBugreportRequest&);
-  SaveTraceForBugreportRequest& operator=(const SaveTraceForBugreportRequest&);
-  bool operator==(const SaveTraceForBugreportRequest&) const;
-  bool operator!=(const SaveTraceForBugreportRequest& other) const { return !(*this == other); }
-
-  bool ParseFromArray(const void*, size_t) override;
-  std::string SerializeAsString() const override;
-  std::vector<uint8_t> SerializeAsArray() const override;
-  void Serialize(::protozero::Message*) const;
-
- private:
-
-  // Allows to preserve unknown protobuf fields for compatibility
-  // with future versions of .proto files.
-  std::string unknown_fields_;
-
-  std::bitset<2> _has_field_{};
-};
-
-
-class PERFETTO_EXPORT QueryCapabilitiesResponse : public ::protozero::CppMessageObj {
- public:
-  enum FieldNumbers {
-    kCapabilitiesFieldNumber = 1,
-  };
-
-  QueryCapabilitiesResponse();
-  ~QueryCapabilitiesResponse() override;
-  QueryCapabilitiesResponse(QueryCapabilitiesResponse&&) noexcept;
-  QueryCapabilitiesResponse& operator=(QueryCapabilitiesResponse&&);
-  QueryCapabilitiesResponse(const QueryCapabilitiesResponse&);
-  QueryCapabilitiesResponse& operator=(const QueryCapabilitiesResponse&);
-  bool operator==(const QueryCapabilitiesResponse&) const;
-  bool operator!=(const QueryCapabilitiesResponse& other) const { return !(*this == other); }
-
-  bool ParseFromArray(const void*, size_t) override;
-  std::string SerializeAsString() const override;
-  std::vector<uint8_t> SerializeAsArray() const override;
-  void Serialize(::protozero::Message*) const;
-
-  bool has_capabilities() const { return _has_field_[1]; }
-  const TracingServiceCapabilities& capabilities() const { return *capabilities_; }
-  TracingServiceCapabilities* mutable_capabilities() { _has_field_.set(1); return capabilities_.get(); }
-
- private:
-  ::protozero::CopyablePtr<TracingServiceCapabilities> capabilities_;
-
-  // Allows to preserve unknown protobuf fields for compatibility
-  // with future versions of .proto files.
-  std::string unknown_fields_;
-
-  std::bitset<2> _has_field_{};
-};
-
-
-class PERFETTO_EXPORT QueryCapabilitiesRequest : public ::protozero::CppMessageObj {
- public:
-  enum FieldNumbers {
-  };
-
-  QueryCapabilitiesRequest();
-  ~QueryCapabilitiesRequest() override;
-  QueryCapabilitiesRequest(QueryCapabilitiesRequest&&) noexcept;
-  QueryCapabilitiesRequest& operator=(QueryCapabilitiesRequest&&);
-  QueryCapabilitiesRequest(const QueryCapabilitiesRequest&);
-  QueryCapabilitiesRequest& operator=(const QueryCapabilitiesRequest&);
-  bool operator==(const QueryCapabilitiesRequest&) const;
-  bool operator!=(const QueryCapabilitiesRequest& other) const { return !(*this == other); }
-
-  bool ParseFromArray(const void*, size_t) override;
-  std::string SerializeAsString() const override;
-  std::vector<uint8_t> SerializeAsArray() const override;
-  void Serialize(::protozero::Message*) const;
-
- private:
-
-  // Allows to preserve unknown protobuf fields for compatibility
-  // with future versions of .proto files.
-  std::string unknown_fields_;
-
-  std::bitset<2> _has_field_{};
-};
-
-
-class PERFETTO_EXPORT QueryServiceStateResponse : public ::protozero::CppMessageObj {
- public:
-  enum FieldNumbers {
-    kServiceStateFieldNumber = 1,
-  };
-
-  QueryServiceStateResponse();
-  ~QueryServiceStateResponse() override;
-  QueryServiceStateResponse(QueryServiceStateResponse&&) noexcept;
-  QueryServiceStateResponse& operator=(QueryServiceStateResponse&&);
-  QueryServiceStateResponse(const QueryServiceStateResponse&);
-  QueryServiceStateResponse& operator=(const QueryServiceStateResponse&);
-  bool operator==(const QueryServiceStateResponse&) const;
-  bool operator!=(const QueryServiceStateResponse& other) const { return !(*this == other); }
-
-  bool ParseFromArray(const void*, size_t) override;
-  std::string SerializeAsString() const override;
-  std::vector<uint8_t> SerializeAsArray() const override;
-  void Serialize(::protozero::Message*) const;
-
-  bool has_service_state() const { return _has_field_[1]; }
-  const TracingServiceState& service_state() const { return *service_state_; }
-  TracingServiceState* mutable_service_state() { _has_field_.set(1); return service_state_.get(); }
-
- private:
-  ::protozero::CopyablePtr<TracingServiceState> service_state_;
-
-  // Allows to preserve unknown protobuf fields for compatibility
-  // with future versions of .proto files.
-  std::string unknown_fields_;
-
-  std::bitset<2> _has_field_{};
-};
-
-
-class PERFETTO_EXPORT QueryServiceStateRequest : public ::protozero::CppMessageObj {
- public:
-  enum FieldNumbers {
-  };
-
-  QueryServiceStateRequest();
-  ~QueryServiceStateRequest() override;
-  QueryServiceStateRequest(QueryServiceStateRequest&&) noexcept;
-  QueryServiceStateRequest& operator=(QueryServiceStateRequest&&);
-  QueryServiceStateRequest(const QueryServiceStateRequest&);
-  QueryServiceStateRequest& operator=(const QueryServiceStateRequest&);
-  bool operator==(const QueryServiceStateRequest&) const;
-  bool operator!=(const QueryServiceStateRequest& other) const { return !(*this == other); }
-
-  bool ParseFromArray(const void*, size_t) override;
-  std::string SerializeAsString() const override;
-  std::vector<uint8_t> SerializeAsArray() const override;
-  void Serialize(::protozero::Message*) const;
-
- private:
-
-  // Allows to preserve unknown protobuf fields for compatibility
-  // with future versions of .proto files.
-  std::string unknown_fields_;
-
-  std::bitset<2> _has_field_{};
-};
-
-
-class PERFETTO_EXPORT ObserveEventsResponse : public ::protozero::CppMessageObj {
- public:
-  enum FieldNumbers {
-    kEventsFieldNumber = 1,
-  };
-
-  ObserveEventsResponse();
-  ~ObserveEventsResponse() override;
-  ObserveEventsResponse(ObserveEventsResponse&&) noexcept;
-  ObserveEventsResponse& operator=(ObserveEventsResponse&&);
-  ObserveEventsResponse(const ObserveEventsResponse&);
-  ObserveEventsResponse& operator=(const ObserveEventsResponse&);
-  bool operator==(const ObserveEventsResponse&) const;
-  bool operator!=(const ObserveEventsResponse& other) const { return !(*this == other); }
-
-  bool ParseFromArray(const void*, size_t) override;
-  std::string SerializeAsString() const override;
-  std::vector<uint8_t> SerializeAsArray() const override;
-  void Serialize(::protozero::Message*) const;
-
-  bool has_events() const { return _has_field_[1]; }
-  const ObservableEvents& events() const { return *events_; }
-  ObservableEvents* mutable_events() { _has_field_.set(1); return events_.get(); }
-
- private:
-  ::protozero::CopyablePtr<ObservableEvents> events_;
-
-  // Allows to preserve unknown protobuf fields for compatibility
-  // with future versions of .proto files.
-  std::string unknown_fields_;
-
-  std::bitset<2> _has_field_{};
-};
-
-
-class PERFETTO_EXPORT ObserveEventsRequest : public ::protozero::CppMessageObj {
- public:
-  enum FieldNumbers {
-    kEventsToObserveFieldNumber = 1,
-  };
-
-  ObserveEventsRequest();
-  ~ObserveEventsRequest() override;
-  ObserveEventsRequest(ObserveEventsRequest&&) noexcept;
-  ObserveEventsRequest& operator=(ObserveEventsRequest&&);
-  ObserveEventsRequest(const ObserveEventsRequest&);
-  ObserveEventsRequest& operator=(const ObserveEventsRequest&);
-  bool operator==(const ObserveEventsRequest&) const;
-  bool operator!=(const ObserveEventsRequest& other) const { return !(*this == other); }
-
-  bool ParseFromArray(const void*, size_t) override;
-  std::string SerializeAsString() const override;
-  std::vector<uint8_t> SerializeAsArray() const override;
-  void Serialize(::protozero::Message*) const;
-
-  const std::vector<ObservableEvents_Type>& events_to_observe() const { return events_to_observe_; }
-  std::vector<ObservableEvents_Type>* mutable_events_to_observe() { return &events_to_observe_; }
-  int events_to_observe_size() const { return static_cast<int>(events_to_observe_.size()); }
-  void clear_events_to_observe() { events_to_observe_.clear(); }
-  void add_events_to_observe(ObservableEvents_Type value) { events_to_observe_.emplace_back(value); }
-  ObservableEvents_Type* add_events_to_observe() { events_to_observe_.emplace_back(); return &events_to_observe_.back(); }
-
- private:
-  std::vector<ObservableEvents_Type> events_to_observe_;
-
-  // Allows to preserve unknown protobuf fields for compatibility
-  // with future versions of .proto files.
-  std::string unknown_fields_;
-
-  std::bitset<2> _has_field_{};
-};
-
-
-class PERFETTO_EXPORT GetTraceStatsResponse : public ::protozero::CppMessageObj {
- public:
-  enum FieldNumbers {
-    kTraceStatsFieldNumber = 1,
-  };
-
-  GetTraceStatsResponse();
-  ~GetTraceStatsResponse() override;
-  GetTraceStatsResponse(GetTraceStatsResponse&&) noexcept;
-  GetTraceStatsResponse& operator=(GetTraceStatsResponse&&);
-  GetTraceStatsResponse(const GetTraceStatsResponse&);
-  GetTraceStatsResponse& operator=(const GetTraceStatsResponse&);
-  bool operator==(const GetTraceStatsResponse&) const;
-  bool operator!=(const GetTraceStatsResponse& other) const { return !(*this == other); }
-
-  bool ParseFromArray(const void*, size_t) override;
-  std::string SerializeAsString() const override;
-  std::vector<uint8_t> SerializeAsArray() const override;
-  void Serialize(::protozero::Message*) const;
-
-  bool has_trace_stats() const { return _has_field_[1]; }
-  const TraceStats& trace_stats() const { return *trace_stats_; }
-  TraceStats* mutable_trace_stats() { _has_field_.set(1); return trace_stats_.get(); }
-
- private:
-  ::protozero::CopyablePtr<TraceStats> trace_stats_;
-
-  // Allows to preserve unknown protobuf fields for compatibility
-  // with future versions of .proto files.
-  std::string unknown_fields_;
-
-  std::bitset<2> _has_field_{};
-};
-
-
-class PERFETTO_EXPORT GetTraceStatsRequest : public ::protozero::CppMessageObj {
- public:
-  enum FieldNumbers {
-  };
-
-  GetTraceStatsRequest();
-  ~GetTraceStatsRequest() override;
-  GetTraceStatsRequest(GetTraceStatsRequest&&) noexcept;
-  GetTraceStatsRequest& operator=(GetTraceStatsRequest&&);
-  GetTraceStatsRequest(const GetTraceStatsRequest&);
-  GetTraceStatsRequest& operator=(const GetTraceStatsRequest&);
-  bool operator==(const GetTraceStatsRequest&) const;
-  bool operator!=(const GetTraceStatsRequest& other) const { return !(*this == other); }
-
-  bool ParseFromArray(const void*, size_t) override;
-  std::string SerializeAsString() const override;
-  std::vector<uint8_t> SerializeAsArray() const override;
-  void Serialize(::protozero::Message*) const;
-
- private:
-
-  // Allows to preserve unknown protobuf fields for compatibility
-  // with future versions of .proto files.
-  std::string unknown_fields_;
-
-  std::bitset<2> _has_field_{};
-};
-
-
-class PERFETTO_EXPORT AttachResponse : public ::protozero::CppMessageObj {
- public:
-  enum FieldNumbers {
-    kTraceConfigFieldNumber = 1,
-  };
-
-  AttachResponse();
-  ~AttachResponse() override;
-  AttachResponse(AttachResponse&&) noexcept;
-  AttachResponse& operator=(AttachResponse&&);
-  AttachResponse(const AttachResponse&);
-  AttachResponse& operator=(const AttachResponse&);
-  bool operator==(const AttachResponse&) const;
-  bool operator!=(const AttachResponse& other) const { return !(*this == other); }
-
-  bool ParseFromArray(const void*, size_t) override;
-  std::string SerializeAsString() const override;
-  std::vector<uint8_t> SerializeAsArray() const override;
-  void Serialize(::protozero::Message*) const;
-
-  bool has_trace_config() const { return _has_field_[1]; }
-  const TraceConfig& trace_config() const { return *trace_config_; }
-  TraceConfig* mutable_trace_config() { _has_field_.set(1); return trace_config_.get(); }
-
- private:
-  ::protozero::CopyablePtr<TraceConfig> trace_config_;
-
-  // Allows to preserve unknown protobuf fields for compatibility
-  // with future versions of .proto files.
-  std::string unknown_fields_;
-
-  std::bitset<2> _has_field_{};
-};
-
-
-class PERFETTO_EXPORT AttachRequest : public ::protozero::CppMessageObj {
- public:
-  enum FieldNumbers {
-    kKeyFieldNumber = 1,
-  };
-
-  AttachRequest();
-  ~AttachRequest() override;
-  AttachRequest(AttachRequest&&) noexcept;
-  AttachRequest& operator=(AttachRequest&&);
-  AttachRequest(const AttachRequest&);
-  AttachRequest& operator=(const AttachRequest&);
-  bool operator==(const AttachRequest&) const;
-  bool operator!=(const AttachRequest& other) const { return !(*this == other); }
-
-  bool ParseFromArray(const void*, size_t) override;
-  std::string SerializeAsString() const override;
-  std::vector<uint8_t> SerializeAsArray() const override;
-  void Serialize(::protozero::Message*) const;
-
-  bool has_key() const { return _has_field_[1]; }
-  const std::string& key() const { return key_; }
-  void set_key(const std::string& value) { key_ = value; _has_field_.set(1); }
-
- private:
-  std::string key_{};
-
-  // Allows to preserve unknown protobuf fields for compatibility
-  // with future versions of .proto files.
-  std::string unknown_fields_;
-
-  std::bitset<2> _has_field_{};
-};
-
-
-class PERFETTO_EXPORT DetachResponse : public ::protozero::CppMessageObj {
- public:
-  enum FieldNumbers {
-  };
-
-  DetachResponse();
-  ~DetachResponse() override;
-  DetachResponse(DetachResponse&&) noexcept;
-  DetachResponse& operator=(DetachResponse&&);
-  DetachResponse(const DetachResponse&);
-  DetachResponse& operator=(const DetachResponse&);
-  bool operator==(const DetachResponse&) const;
-  bool operator!=(const DetachResponse& other) const { return !(*this == other); }
-
-  bool ParseFromArray(const void*, size_t) override;
-  std::string SerializeAsString() const override;
-  std::vector<uint8_t> SerializeAsArray() const override;
-  void Serialize(::protozero::Message*) const;
-
- private:
-
-  // Allows to preserve unknown protobuf fields for compatibility
-  // with future versions of .proto files.
-  std::string unknown_fields_;
-
-  std::bitset<2> _has_field_{};
-};
-
-
-class PERFETTO_EXPORT DetachRequest : public ::protozero::CppMessageObj {
- public:
-  enum FieldNumbers {
-    kKeyFieldNumber = 1,
-  };
-
-  DetachRequest();
-  ~DetachRequest() override;
-  DetachRequest(DetachRequest&&) noexcept;
-  DetachRequest& operator=(DetachRequest&&);
-  DetachRequest(const DetachRequest&);
-  DetachRequest& operator=(const DetachRequest&);
-  bool operator==(const DetachRequest&) const;
-  bool operator!=(const DetachRequest& other) const { return !(*this == other); }
-
-  bool ParseFromArray(const void*, size_t) override;
-  std::string SerializeAsString() const override;
-  std::vector<uint8_t> SerializeAsArray() const override;
-  void Serialize(::protozero::Message*) const;
-
-  bool has_key() const { return _has_field_[1]; }
-  const std::string& key() const { return key_; }
-  void set_key(const std::string& value) { key_ = value; _has_field_.set(1); }
-
- private:
-  std::string key_{};
-
-  // Allows to preserve unknown protobuf fields for compatibility
-  // with future versions of .proto files.
-  std::string unknown_fields_;
-
-  std::bitset<2> _has_field_{};
-};
-
-
-class PERFETTO_EXPORT FlushResponse : public ::protozero::CppMessageObj {
- public:
-  enum FieldNumbers {
-  };
-
-  FlushResponse();
-  ~FlushResponse() override;
-  FlushResponse(FlushResponse&&) noexcept;
-  FlushResponse& operator=(FlushResponse&&);
-  FlushResponse(const FlushResponse&);
-  FlushResponse& operator=(const FlushResponse&);
-  bool operator==(const FlushResponse&) const;
-  bool operator!=(const FlushResponse& other) const { return !(*this == other); }
-
-  bool ParseFromArray(const void*, size_t) override;
-  std::string SerializeAsString() const override;
-  std::vector<uint8_t> SerializeAsArray() const override;
-  void Serialize(::protozero::Message*) const;
-
- private:
-
-  // Allows to preserve unknown protobuf fields for compatibility
-  // with future versions of .proto files.
-  std::string unknown_fields_;
-
-  std::bitset<2> _has_field_{};
-};
-
-
-class PERFETTO_EXPORT FlushRequest : public ::protozero::CppMessageObj {
- public:
-  enum FieldNumbers {
-    kTimeoutMsFieldNumber = 1,
-  };
-
-  FlushRequest();
-  ~FlushRequest() override;
-  FlushRequest(FlushRequest&&) noexcept;
-  FlushRequest& operator=(FlushRequest&&);
-  FlushRequest(const FlushRequest&);
-  FlushRequest& operator=(const FlushRequest&);
-  bool operator==(const FlushRequest&) const;
-  bool operator!=(const FlushRequest& other) const { return !(*this == other); }
-
-  bool ParseFromArray(const void*, size_t) override;
-  std::string SerializeAsString() const override;
-  std::vector<uint8_t> SerializeAsArray() const override;
-  void Serialize(::protozero::Message*) const;
-
-  bool has_timeout_ms() const { return _has_field_[1]; }
-  uint32_t timeout_ms() const { return timeout_ms_; }
-  void set_timeout_ms(uint32_t value) { timeout_ms_ = value; _has_field_.set(1); }
-
- private:
-  uint32_t timeout_ms_{};
-
-  // Allows to preserve unknown protobuf fields for compatibility
-  // with future versions of .proto files.
-  std::string unknown_fields_;
-
-  std::bitset<2> _has_field_{};
-};
-
-
-class PERFETTO_EXPORT FreeBuffersResponse : public ::protozero::CppMessageObj {
- public:
-  enum FieldNumbers {
-  };
-
-  FreeBuffersResponse();
-  ~FreeBuffersResponse() override;
-  FreeBuffersResponse(FreeBuffersResponse&&) noexcept;
-  FreeBuffersResponse& operator=(FreeBuffersResponse&&);
-  FreeBuffersResponse(const FreeBuffersResponse&);
-  FreeBuffersResponse& operator=(const FreeBuffersResponse&);
-  bool operator==(const FreeBuffersResponse&) const;
-  bool operator!=(const FreeBuffersResponse& other) const { return !(*this == other); }
-
-  bool ParseFromArray(const void*, size_t) override;
-  std::string SerializeAsString() const override;
-  std::vector<uint8_t> SerializeAsArray() const override;
-  void Serialize(::protozero::Message*) const;
-
- private:
-
-  // Allows to preserve unknown protobuf fields for compatibility
-  // with future versions of .proto files.
-  std::string unknown_fields_;
-
-  std::bitset<2> _has_field_{};
-};
-
-
-class PERFETTO_EXPORT FreeBuffersRequest : public ::protozero::CppMessageObj {
- public:
-  enum FieldNumbers {
-    kBufferIdsFieldNumber = 1,
-  };
-
-  FreeBuffersRequest();
-  ~FreeBuffersRequest() override;
-  FreeBuffersRequest(FreeBuffersRequest&&) noexcept;
-  FreeBuffersRequest& operator=(FreeBuffersRequest&&);
-  FreeBuffersRequest(const FreeBuffersRequest&);
-  FreeBuffersRequest& operator=(const FreeBuffersRequest&);
-  bool operator==(const FreeBuffersRequest&) const;
-  bool operator!=(const FreeBuffersRequest& other) const { return !(*this == other); }
-
-  bool ParseFromArray(const void*, size_t) override;
-  std::string SerializeAsString() const override;
-  std::vector<uint8_t> SerializeAsArray() const override;
-  void Serialize(::protozero::Message*) const;
-
-  const std::vector<uint32_t>& buffer_ids() const { return buffer_ids_; }
-  std::vector<uint32_t>* mutable_buffer_ids() { return &buffer_ids_; }
-  int buffer_ids_size() const { return static_cast<int>(buffer_ids_.size()); }
-  void clear_buffer_ids() { buffer_ids_.clear(); }
-  void add_buffer_ids(uint32_t value) { buffer_ids_.emplace_back(value); }
-  uint32_t* add_buffer_ids() { buffer_ids_.emplace_back(); return &buffer_ids_.back(); }
-
- private:
-  std::vector<uint32_t> buffer_ids_;
-
-  // Allows to preserve unknown protobuf fields for compatibility
-  // with future versions of .proto files.
-  std::string unknown_fields_;
-
-  std::bitset<2> _has_field_{};
-};
-
-
-class PERFETTO_EXPORT ReadBuffersResponse : public ::protozero::CppMessageObj {
- public:
-  using Slice = ReadBuffersResponse_Slice;
-  enum FieldNumbers {
-    kSlicesFieldNumber = 2,
-  };
-
-  ReadBuffersResponse();
-  ~ReadBuffersResponse() override;
-  ReadBuffersResponse(ReadBuffersResponse&&) noexcept;
-  ReadBuffersResponse& operator=(ReadBuffersResponse&&);
-  ReadBuffersResponse(const ReadBuffersResponse&);
-  ReadBuffersResponse& operator=(const ReadBuffersResponse&);
-  bool operator==(const ReadBuffersResponse&) const;
-  bool operator!=(const ReadBuffersResponse& other) const { return !(*this == other); }
-
-  bool ParseFromArray(const void*, size_t) override;
-  std::string SerializeAsString() const override;
-  std::vector<uint8_t> SerializeAsArray() const override;
-  void Serialize(::protozero::Message*) const;
-
-  const std::vector<ReadBuffersResponse_Slice>& slices() const { return slices_; }
-  std::vector<ReadBuffersResponse_Slice>* mutable_slices() { return &slices_; }
-  int slices_size() const;
-  void clear_slices();
-  ReadBuffersResponse_Slice* add_slices();
-
- private:
-  std::vector<ReadBuffersResponse_Slice> slices_;
-
-  // Allows to preserve unknown protobuf fields for compatibility
-  // with future versions of .proto files.
-  std::string unknown_fields_;
-
-  std::bitset<3> _has_field_{};
-};
-
-
-class PERFETTO_EXPORT ReadBuffersResponse_Slice : public ::protozero::CppMessageObj {
- public:
-  enum FieldNumbers {
-    kDataFieldNumber = 1,
-    kLastSliceForPacketFieldNumber = 2,
-  };
-
-  ReadBuffersResponse_Slice();
-  ~ReadBuffersResponse_Slice() override;
-  ReadBuffersResponse_Slice(ReadBuffersResponse_Slice&&) noexcept;
-  ReadBuffersResponse_Slice& operator=(ReadBuffersResponse_Slice&&);
-  ReadBuffersResponse_Slice(const ReadBuffersResponse_Slice&);
-  ReadBuffersResponse_Slice& operator=(const ReadBuffersResponse_Slice&);
-  bool operator==(const ReadBuffersResponse_Slice&) const;
-  bool operator!=(const ReadBuffersResponse_Slice& other) const { return !(*this == other); }
-
-  bool ParseFromArray(const void*, size_t) override;
-  std::string SerializeAsString() const override;
-  std::vector<uint8_t> SerializeAsArray() const override;
-  void Serialize(::protozero::Message*) const;
-
-  bool has_data() const { return _has_field_[1]; }
-  const std::string& data() const { return data_; }
-  void set_data(const std::string& value) { data_ = value; _has_field_.set(1); }
-  void set_data(const void* p, size_t s) { data_.assign(reinterpret_cast<const char*>(p), s); _has_field_.set(1); }
-
-  bool has_last_slice_for_packet() const { return _has_field_[2]; }
-  bool last_slice_for_packet() const { return last_slice_for_packet_; }
-  void set_last_slice_for_packet(bool value) { last_slice_for_packet_ = value; _has_field_.set(2); }
-
- private:
-  std::string data_{};
-  bool last_slice_for_packet_{};
-
-  // Allows to preserve unknown protobuf fields for compatibility
-  // with future versions of .proto files.
-  std::string unknown_fields_;
-
-  std::bitset<3> _has_field_{};
-};
-
-
-class PERFETTO_EXPORT ReadBuffersRequest : public ::protozero::CppMessageObj {
- public:
-  enum FieldNumbers {
-  };
-
-  ReadBuffersRequest();
-  ~ReadBuffersRequest() override;
-  ReadBuffersRequest(ReadBuffersRequest&&) noexcept;
-  ReadBuffersRequest& operator=(ReadBuffersRequest&&);
-  ReadBuffersRequest(const ReadBuffersRequest&);
-  ReadBuffersRequest& operator=(const ReadBuffersRequest&);
-  bool operator==(const ReadBuffersRequest&) const;
-  bool operator!=(const ReadBuffersRequest& other) const { return !(*this == other); }
-
-  bool ParseFromArray(const void*, size_t) override;
-  std::string SerializeAsString() const override;
-  std::vector<uint8_t> SerializeAsArray() const override;
-  void Serialize(::protozero::Message*) const;
-
- private:
-
-  // Allows to preserve unknown protobuf fields for compatibility
-  // with future versions of .proto files.
-  std::string unknown_fields_;
-
-  std::bitset<2> _has_field_{};
-};
-
-
-class PERFETTO_EXPORT DisableTracingResponse : public ::protozero::CppMessageObj {
- public:
-  enum FieldNumbers {
-  };
-
-  DisableTracingResponse();
-  ~DisableTracingResponse() override;
-  DisableTracingResponse(DisableTracingResponse&&) noexcept;
-  DisableTracingResponse& operator=(DisableTracingResponse&&);
-  DisableTracingResponse(const DisableTracingResponse&);
-  DisableTracingResponse& operator=(const DisableTracingResponse&);
-  bool operator==(const DisableTracingResponse&) const;
-  bool operator!=(const DisableTracingResponse& other) const { return !(*this == other); }
-
-  bool ParseFromArray(const void*, size_t) override;
-  std::string SerializeAsString() const override;
-  std::vector<uint8_t> SerializeAsArray() const override;
-  void Serialize(::protozero::Message*) const;
-
- private:
-
-  // Allows to preserve unknown protobuf fields for compatibility
-  // with future versions of .proto files.
-  std::string unknown_fields_;
-
-  std::bitset<2> _has_field_{};
-};
-
-
-class PERFETTO_EXPORT DisableTracingRequest : public ::protozero::CppMessageObj {
- public:
-  enum FieldNumbers {
-  };
-
-  DisableTracingRequest();
-  ~DisableTracingRequest() override;
-  DisableTracingRequest(DisableTracingRequest&&) noexcept;
-  DisableTracingRequest& operator=(DisableTracingRequest&&);
-  DisableTracingRequest(const DisableTracingRequest&);
-  DisableTracingRequest& operator=(const DisableTracingRequest&);
-  bool operator==(const DisableTracingRequest&) const;
-  bool operator!=(const DisableTracingRequest& other) const { return !(*this == other); }
-
-  bool ParseFromArray(const void*, size_t) override;
-  std::string SerializeAsString() const override;
-  std::vector<uint8_t> SerializeAsArray() const override;
-  void Serialize(::protozero::Message*) const;
-
- private:
-
-  // Allows to preserve unknown protobuf fields for compatibility
-  // with future versions of .proto files.
-  std::string unknown_fields_;
-
-  std::bitset<2> _has_field_{};
-};
-
-
-class PERFETTO_EXPORT ChangeTraceConfigResponse : public ::protozero::CppMessageObj {
- public:
-  enum FieldNumbers {
-  };
-
-  ChangeTraceConfigResponse();
-  ~ChangeTraceConfigResponse() override;
-  ChangeTraceConfigResponse(ChangeTraceConfigResponse&&) noexcept;
-  ChangeTraceConfigResponse& operator=(ChangeTraceConfigResponse&&);
-  ChangeTraceConfigResponse(const ChangeTraceConfigResponse&);
-  ChangeTraceConfigResponse& operator=(const ChangeTraceConfigResponse&);
-  bool operator==(const ChangeTraceConfigResponse&) const;
-  bool operator!=(const ChangeTraceConfigResponse& other) const { return !(*this == other); }
-
-  bool ParseFromArray(const void*, size_t) override;
-  std::string SerializeAsString() const override;
-  std::vector<uint8_t> SerializeAsArray() const override;
-  void Serialize(::protozero::Message*) const;
-
- private:
-
-  // Allows to preserve unknown protobuf fields for compatibility
-  // with future versions of .proto files.
-  std::string unknown_fields_;
-
-  std::bitset<2> _has_field_{};
-};
-
-
-class PERFETTO_EXPORT ChangeTraceConfigRequest : public ::protozero::CppMessageObj {
- public:
-  enum FieldNumbers {
-    kTraceConfigFieldNumber = 1,
-  };
-
-  ChangeTraceConfigRequest();
-  ~ChangeTraceConfigRequest() override;
-  ChangeTraceConfigRequest(ChangeTraceConfigRequest&&) noexcept;
-  ChangeTraceConfigRequest& operator=(ChangeTraceConfigRequest&&);
-  ChangeTraceConfigRequest(const ChangeTraceConfigRequest&);
-  ChangeTraceConfigRequest& operator=(const ChangeTraceConfigRequest&);
-  bool operator==(const ChangeTraceConfigRequest&) const;
-  bool operator!=(const ChangeTraceConfigRequest& other) const { return !(*this == other); }
-
-  bool ParseFromArray(const void*, size_t) override;
-  std::string SerializeAsString() const override;
-  std::vector<uint8_t> SerializeAsArray() const override;
-  void Serialize(::protozero::Message*) const;
-
-  bool has_trace_config() const { return _has_field_[1]; }
-  const TraceConfig& trace_config() const { return *trace_config_; }
-  TraceConfig* mutable_trace_config() { _has_field_.set(1); return trace_config_.get(); }
-
- private:
-  ::protozero::CopyablePtr<TraceConfig> trace_config_;
-
-  // Allows to preserve unknown protobuf fields for compatibility
-  // with future versions of .proto files.
-  std::string unknown_fields_;
-
-  std::bitset<2> _has_field_{};
-};
-
-
-class PERFETTO_EXPORT StartTracingResponse : public ::protozero::CppMessageObj {
- public:
-  enum FieldNumbers {
-  };
-
-  StartTracingResponse();
-  ~StartTracingResponse() override;
-  StartTracingResponse(StartTracingResponse&&) noexcept;
-  StartTracingResponse& operator=(StartTracingResponse&&);
-  StartTracingResponse(const StartTracingResponse&);
-  StartTracingResponse& operator=(const StartTracingResponse&);
-  bool operator==(const StartTracingResponse&) const;
-  bool operator!=(const StartTracingResponse& other) const { return !(*this == other); }
-
-  bool ParseFromArray(const void*, size_t) override;
-  std::string SerializeAsString() const override;
-  std::vector<uint8_t> SerializeAsArray() const override;
-  void Serialize(::protozero::Message*) const;
-
- private:
-
-  // Allows to preserve unknown protobuf fields for compatibility
-  // with future versions of .proto files.
-  std::string unknown_fields_;
-
-  std::bitset<2> _has_field_{};
-};
-
-
-class PERFETTO_EXPORT StartTracingRequest : public ::protozero::CppMessageObj {
- public:
-  enum FieldNumbers {
-  };
-
-  StartTracingRequest();
-  ~StartTracingRequest() override;
-  StartTracingRequest(StartTracingRequest&&) noexcept;
-  StartTracingRequest& operator=(StartTracingRequest&&);
-  StartTracingRequest(const StartTracingRequest&);
-  StartTracingRequest& operator=(const StartTracingRequest&);
-  bool operator==(const StartTracingRequest&) const;
-  bool operator!=(const StartTracingRequest& other) const { return !(*this == other); }
-
-  bool ParseFromArray(const void*, size_t) override;
-  std::string SerializeAsString() const override;
-  std::vector<uint8_t> SerializeAsArray() const override;
-  void Serialize(::protozero::Message*) const;
-
- private:
-
-  // Allows to preserve unknown protobuf fields for compatibility
-  // with future versions of .proto files.
-  std::string unknown_fields_;
-
-  std::bitset<2> _has_field_{};
-};
-
-
-class PERFETTO_EXPORT EnableTracingResponse : public ::protozero::CppMessageObj {
- public:
-  enum FieldNumbers {
-    kDisabledFieldNumber = 1,
-    kErrorFieldNumber = 3,
-  };
-
-  EnableTracingResponse();
-  ~EnableTracingResponse() override;
-  EnableTracingResponse(EnableTracingResponse&&) noexcept;
-  EnableTracingResponse& operator=(EnableTracingResponse&&);
-  EnableTracingResponse(const EnableTracingResponse&);
-  EnableTracingResponse& operator=(const EnableTracingResponse&);
-  bool operator==(const EnableTracingResponse&) const;
-  bool operator!=(const EnableTracingResponse& other) const { return !(*this == other); }
-
-  bool ParseFromArray(const void*, size_t) override;
-  std::string SerializeAsString() const override;
-  std::vector<uint8_t> SerializeAsArray() const override;
-  void Serialize(::protozero::Message*) const;
-
-  bool has_disabled() const { return _has_field_[1]; }
-  bool disabled() const { return disabled_; }
-  void set_disabled(bool value) { disabled_ = value; _has_field_.set(1); }
-
-  bool has_error() const { return _has_field_[3]; }
-  const std::string& error() const { return error_; }
-  void set_error(const std::string& value) { error_ = value; _has_field_.set(3); }
-
- private:
-  bool disabled_{};
-  std::string error_{};
-
-  // Allows to preserve unknown protobuf fields for compatibility
-  // with future versions of .proto files.
-  std::string unknown_fields_;
-
-  std::bitset<4> _has_field_{};
-};
-
-
-class PERFETTO_EXPORT EnableTracingRequest : public ::protozero::CppMessageObj {
- public:
-  enum FieldNumbers {
-    kTraceConfigFieldNumber = 1,
-    kAttachNotificationOnlyFieldNumber = 2,
-  };
-
-  EnableTracingRequest();
-  ~EnableTracingRequest() override;
-  EnableTracingRequest(EnableTracingRequest&&) noexcept;
-  EnableTracingRequest& operator=(EnableTracingRequest&&);
-  EnableTracingRequest(const EnableTracingRequest&);
-  EnableTracingRequest& operator=(const EnableTracingRequest&);
-  bool operator==(const EnableTracingRequest&) const;
-  bool operator!=(const EnableTracingRequest& other) const { return !(*this == other); }
-
-  bool ParseFromArray(const void*, size_t) override;
-  std::string SerializeAsString() const override;
-  std::vector<uint8_t> SerializeAsArray() const override;
-  void Serialize(::protozero::Message*) const;
-
-  bool has_trace_config() const { return _has_field_[1]; }
-  const TraceConfig& trace_config() const { return *trace_config_; }
-  TraceConfig* mutable_trace_config() { _has_field_.set(1); return trace_config_.get(); }
-
-  bool has_attach_notification_only() const { return _has_field_[2]; }
-  bool attach_notification_only() const { return attach_notification_only_; }
-  void set_attach_notification_only(bool value) { attach_notification_only_ = value; _has_field_.set(2); }
-
- private:
-  ::protozero::CopyablePtr<TraceConfig> trace_config_;
-  bool attach_notification_only_{};
-
-  // Allows to preserve unknown protobuf fields for compatibility
-  // with future versions of .proto files.
-  std::string unknown_fields_;
-
-  std::bitset<3> _has_field_{};
-};
-
-}  // namespace perfetto
-}  // namespace protos
-}  // namespace gen
-
-#endif  // PERFETTO_PROTOS_PROTOS_PERFETTO_IPC_CONSUMER_PORT_PROTO_CPP_H_
-// gen_amalgamated begin header: gen/protos/perfetto/ipc/producer_port.gen.h
-// DO NOT EDIT. Autogenerated by Perfetto cppgen_plugin
-#ifndef PERFETTO_PROTOS_PROTOS_PERFETTO_IPC_PRODUCER_PORT_PROTO_CPP_H_
-#define PERFETTO_PROTOS_PROTOS_PERFETTO_IPC_PRODUCER_PORT_PROTO_CPP_H_
-
-#include <stdint.h>
-#include <bitset>
-#include <vector>
-#include <string>
-#include <type_traits>
-
-// gen_amalgamated expanded: #include "perfetto/protozero/cpp_message_obj.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/copyable_ptr.h"
-// gen_amalgamated expanded: #include "perfetto/base/export.h"
-
-namespace perfetto {
-namespace protos {
-namespace gen {
-class SyncResponse;
-class SyncRequest;
-class GetAsyncCommandResponse;
-class GetAsyncCommandResponse_ClearIncrementalState;
-class GetAsyncCommandResponse_Flush;
-class GetAsyncCommandResponse_StopDataSource;
-class GetAsyncCommandResponse_StartDataSource;
-class DataSourceConfig;
-class TestConfig;
-class TestConfig_DummyFields;
-class InterceptorConfig;
-class ChromeConfig;
-class GetAsyncCommandResponse_SetupDataSource;
-class GetAsyncCommandResponse_SetupTracing;
-class GetAsyncCommandRequest;
-class ActivateTriggersResponse;
-class ActivateTriggersRequest;
-class NotifyDataSourceStoppedResponse;
-class NotifyDataSourceStoppedRequest;
-class NotifyDataSourceStartedResponse;
-class NotifyDataSourceStartedRequest;
-class CommitDataResponse;
-class UnregisterTraceWriterResponse;
-class UnregisterTraceWriterRequest;
-class RegisterTraceWriterResponse;
-class RegisterTraceWriterRequest;
-class UnregisterDataSourceResponse;
-class UnregisterDataSourceRequest;
-class RegisterDataSourceResponse;
-class RegisterDataSourceRequest;
-class DataSourceDescriptor;
-class InitializeConnectionResponse;
-class InitializeConnectionRequest;
-enum DataSourceConfig_SessionInitiator : int;
-enum ChromeConfig_ClientPriority : int;
-enum InitializeConnectionRequest_ProducerSMBScrapingMode : int;
-enum InitializeConnectionRequest_ProducerBuildFlags : int;
-}  // namespace perfetto
-}  // namespace protos
-}  // namespace gen
-
-namespace protozero {
-class Message;
-}  // namespace protozero
-
-namespace perfetto {
-namespace protos {
-namespace gen {
-enum InitializeConnectionRequest_ProducerSMBScrapingMode : int {
-  InitializeConnectionRequest_ProducerSMBScrapingMode_SMB_SCRAPING_UNSPECIFIED = 0,
-  InitializeConnectionRequest_ProducerSMBScrapingMode_SMB_SCRAPING_ENABLED = 1,
-  InitializeConnectionRequest_ProducerSMBScrapingMode_SMB_SCRAPING_DISABLED = 2,
-};
-enum InitializeConnectionRequest_ProducerBuildFlags : int {
-  InitializeConnectionRequest_ProducerBuildFlags_BUILD_FLAGS_UNSPECIFIED = 0,
-  InitializeConnectionRequest_ProducerBuildFlags_BUILD_FLAGS_DCHECKS_ON = 1,
-  InitializeConnectionRequest_ProducerBuildFlags_BUILD_FLAGS_DCHECKS_OFF = 2,
-};
-
-class PERFETTO_EXPORT SyncResponse : public ::protozero::CppMessageObj {
- public:
-  enum FieldNumbers {
-  };
-
-  SyncResponse();
-  ~SyncResponse() override;
-  SyncResponse(SyncResponse&&) noexcept;
-  SyncResponse& operator=(SyncResponse&&);
-  SyncResponse(const SyncResponse&);
-  SyncResponse& operator=(const SyncResponse&);
-  bool operator==(const SyncResponse&) const;
-  bool operator!=(const SyncResponse& other) const { return !(*this == other); }
-
-  bool ParseFromArray(const void*, size_t) override;
-  std::string SerializeAsString() const override;
-  std::vector<uint8_t> SerializeAsArray() const override;
-  void Serialize(::protozero::Message*) const;
-
- private:
-
-  // Allows to preserve unknown protobuf fields for compatibility
-  // with future versions of .proto files.
-  std::string unknown_fields_;
-
-  std::bitset<2> _has_field_{};
-};
-
-
-class PERFETTO_EXPORT SyncRequest : public ::protozero::CppMessageObj {
- public:
-  enum FieldNumbers {
-  };
-
-  SyncRequest();
-  ~SyncRequest() override;
-  SyncRequest(SyncRequest&&) noexcept;
-  SyncRequest& operator=(SyncRequest&&);
-  SyncRequest(const SyncRequest&);
-  SyncRequest& operator=(const SyncRequest&);
-  bool operator==(const SyncRequest&) const;
-  bool operator!=(const SyncRequest& other) const { return !(*this == other); }
-
-  bool ParseFromArray(const void*, size_t) override;
-  std::string SerializeAsString() const override;
-  std::vector<uint8_t> SerializeAsArray() const override;
-  void Serialize(::protozero::Message*) const;
-
- private:
-
-  // Allows to preserve unknown protobuf fields for compatibility
-  // with future versions of .proto files.
-  std::string unknown_fields_;
-
-  std::bitset<2> _has_field_{};
-};
-
-
-class PERFETTO_EXPORT GetAsyncCommandResponse : public ::protozero::CppMessageObj {
- public:
-  using SetupDataSource = GetAsyncCommandResponse_SetupDataSource;
-  using StartDataSource = GetAsyncCommandResponse_StartDataSource;
-  using StopDataSource = GetAsyncCommandResponse_StopDataSource;
-  using SetupTracing = GetAsyncCommandResponse_SetupTracing;
-  using Flush = GetAsyncCommandResponse_Flush;
-  using ClearIncrementalState = GetAsyncCommandResponse_ClearIncrementalState;
-  enum FieldNumbers {
-    kSetupTracingFieldNumber = 3,
-    kSetupDataSourceFieldNumber = 6,
-    kStartDataSourceFieldNumber = 1,
-    kStopDataSourceFieldNumber = 2,
-    kFlushFieldNumber = 5,
-    kClearIncrementalStateFieldNumber = 7,
-  };
-
-  GetAsyncCommandResponse();
-  ~GetAsyncCommandResponse() override;
-  GetAsyncCommandResponse(GetAsyncCommandResponse&&) noexcept;
-  GetAsyncCommandResponse& operator=(GetAsyncCommandResponse&&);
-  GetAsyncCommandResponse(const GetAsyncCommandResponse&);
-  GetAsyncCommandResponse& operator=(const GetAsyncCommandResponse&);
-  bool operator==(const GetAsyncCommandResponse&) const;
-  bool operator!=(const GetAsyncCommandResponse& other) const { return !(*this == other); }
-
-  bool ParseFromArray(const void*, size_t) override;
-  std::string SerializeAsString() const override;
-  std::vector<uint8_t> SerializeAsArray() const override;
-  void Serialize(::protozero::Message*) const;
-
-  bool has_setup_tracing() const { return _has_field_[3]; }
-  const GetAsyncCommandResponse_SetupTracing& setup_tracing() const { return *setup_tracing_; }
-  GetAsyncCommandResponse_SetupTracing* mutable_setup_tracing() { _has_field_.set(3); return setup_tracing_.get(); }
-
-  bool has_setup_data_source() const { return _has_field_[6]; }
-  const GetAsyncCommandResponse_SetupDataSource& setup_data_source() const { return *setup_data_source_; }
-  GetAsyncCommandResponse_SetupDataSource* mutable_setup_data_source() { _has_field_.set(6); return setup_data_source_.get(); }
-
-  bool has_start_data_source() const { return _has_field_[1]; }
-  const GetAsyncCommandResponse_StartDataSource& start_data_source() const { return *start_data_source_; }
-  GetAsyncCommandResponse_StartDataSource* mutable_start_data_source() { _has_field_.set(1); return start_data_source_.get(); }
-
-  bool has_stop_data_source() const { return _has_field_[2]; }
-  const GetAsyncCommandResponse_StopDataSource& stop_data_source() const { return *stop_data_source_; }
-  GetAsyncCommandResponse_StopDataSource* mutable_stop_data_source() { _has_field_.set(2); return stop_data_source_.get(); }
-
-  bool has_flush() const { return _has_field_[5]; }
-  const GetAsyncCommandResponse_Flush& flush() const { return *flush_; }
-  GetAsyncCommandResponse_Flush* mutable_flush() { _has_field_.set(5); return flush_.get(); }
-
-  bool has_clear_incremental_state() const { return _has_field_[7]; }
-  const GetAsyncCommandResponse_ClearIncrementalState& clear_incremental_state() const { return *clear_incremental_state_; }
-  GetAsyncCommandResponse_ClearIncrementalState* mutable_clear_incremental_state() { _has_field_.set(7); return clear_incremental_state_.get(); }
-
- private:
-  ::protozero::CopyablePtr<GetAsyncCommandResponse_SetupTracing> setup_tracing_;
-  ::protozero::CopyablePtr<GetAsyncCommandResponse_SetupDataSource> setup_data_source_;
-  ::protozero::CopyablePtr<GetAsyncCommandResponse_StartDataSource> start_data_source_;
-  ::protozero::CopyablePtr<GetAsyncCommandResponse_StopDataSource> stop_data_source_;
-  ::protozero::CopyablePtr<GetAsyncCommandResponse_Flush> flush_;
-  ::protozero::CopyablePtr<GetAsyncCommandResponse_ClearIncrementalState> clear_incremental_state_;
-
-  // Allows to preserve unknown protobuf fields for compatibility
-  // with future versions of .proto files.
-  std::string unknown_fields_;
-
-  std::bitset<8> _has_field_{};
-};
-
-
-class PERFETTO_EXPORT GetAsyncCommandResponse_ClearIncrementalState : public ::protozero::CppMessageObj {
- public:
-  enum FieldNumbers {
-    kDataSourceIdsFieldNumber = 1,
-  };
-
-  GetAsyncCommandResponse_ClearIncrementalState();
-  ~GetAsyncCommandResponse_ClearIncrementalState() override;
-  GetAsyncCommandResponse_ClearIncrementalState(GetAsyncCommandResponse_ClearIncrementalState&&) noexcept;
-  GetAsyncCommandResponse_ClearIncrementalState& operator=(GetAsyncCommandResponse_ClearIncrementalState&&);
-  GetAsyncCommandResponse_ClearIncrementalState(const GetAsyncCommandResponse_ClearIncrementalState&);
-  GetAsyncCommandResponse_ClearIncrementalState& operator=(const GetAsyncCommandResponse_ClearIncrementalState&);
-  bool operator==(const GetAsyncCommandResponse_ClearIncrementalState&) const;
-  bool operator!=(const GetAsyncCommandResponse_ClearIncrementalState& other) const { return !(*this == other); }
-
-  bool ParseFromArray(const void*, size_t) override;
-  std::string SerializeAsString() const override;
-  std::vector<uint8_t> SerializeAsArray() const override;
-  void Serialize(::protozero::Message*) const;
-
-  const std::vector<uint64_t>& data_source_ids() const { return data_source_ids_; }
-  std::vector<uint64_t>* mutable_data_source_ids() { return &data_source_ids_; }
-  int data_source_ids_size() const { return static_cast<int>(data_source_ids_.size()); }
-  void clear_data_source_ids() { data_source_ids_.clear(); }
-  void add_data_source_ids(uint64_t value) { data_source_ids_.emplace_back(value); }
-  uint64_t* add_data_source_ids() { data_source_ids_.emplace_back(); return &data_source_ids_.back(); }
-
- private:
-  std::vector<uint64_t> data_source_ids_;
-
-  // Allows to preserve unknown protobuf fields for compatibility
-  // with future versions of .proto files.
-  std::string unknown_fields_;
-
-  std::bitset<2> _has_field_{};
-};
-
-
-class PERFETTO_EXPORT GetAsyncCommandResponse_Flush : public ::protozero::CppMessageObj {
- public:
-  enum FieldNumbers {
-    kDataSourceIdsFieldNumber = 1,
-    kRequestIdFieldNumber = 2,
-  };
-
-  GetAsyncCommandResponse_Flush();
-  ~GetAsyncCommandResponse_Flush() override;
-  GetAsyncCommandResponse_Flush(GetAsyncCommandResponse_Flush&&) noexcept;
-  GetAsyncCommandResponse_Flush& operator=(GetAsyncCommandResponse_Flush&&);
-  GetAsyncCommandResponse_Flush(const GetAsyncCommandResponse_Flush&);
-  GetAsyncCommandResponse_Flush& operator=(const GetAsyncCommandResponse_Flush&);
-  bool operator==(const GetAsyncCommandResponse_Flush&) const;
-  bool operator!=(const GetAsyncCommandResponse_Flush& other) const { return !(*this == other); }
-
-  bool ParseFromArray(const void*, size_t) override;
-  std::string SerializeAsString() const override;
-  std::vector<uint8_t> SerializeAsArray() const override;
-  void Serialize(::protozero::Message*) const;
-
-  const std::vector<uint64_t>& data_source_ids() const { return data_source_ids_; }
-  std::vector<uint64_t>* mutable_data_source_ids() { return &data_source_ids_; }
-  int data_source_ids_size() const { return static_cast<int>(data_source_ids_.size()); }
-  void clear_data_source_ids() { data_source_ids_.clear(); }
-  void add_data_source_ids(uint64_t value) { data_source_ids_.emplace_back(value); }
-  uint64_t* add_data_source_ids() { data_source_ids_.emplace_back(); return &data_source_ids_.back(); }
-
-  bool has_request_id() const { return _has_field_[2]; }
-  uint64_t request_id() const { return request_id_; }
-  void set_request_id(uint64_t value) { request_id_ = value; _has_field_.set(2); }
-
- private:
-  std::vector<uint64_t> data_source_ids_;
-  uint64_t request_id_{};
-
-  // Allows to preserve unknown protobuf fields for compatibility
-  // with future versions of .proto files.
-  std::string unknown_fields_;
-
-  std::bitset<3> _has_field_{};
-};
-
-
-class PERFETTO_EXPORT GetAsyncCommandResponse_StopDataSource : public ::protozero::CppMessageObj {
- public:
-  enum FieldNumbers {
-    kInstanceIdFieldNumber = 1,
-  };
-
-  GetAsyncCommandResponse_StopDataSource();
-  ~GetAsyncCommandResponse_StopDataSource() override;
-  GetAsyncCommandResponse_StopDataSource(GetAsyncCommandResponse_StopDataSource&&) noexcept;
-  GetAsyncCommandResponse_StopDataSource& operator=(GetAsyncCommandResponse_StopDataSource&&);
-  GetAsyncCommandResponse_StopDataSource(const GetAsyncCommandResponse_StopDataSource&);
-  GetAsyncCommandResponse_StopDataSource& operator=(const GetAsyncCommandResponse_StopDataSource&);
-  bool operator==(const GetAsyncCommandResponse_StopDataSource&) const;
-  bool operator!=(const GetAsyncCommandResponse_StopDataSource& other) const { return !(*this == other); }
-
-  bool ParseFromArray(const void*, size_t) override;
-  std::string SerializeAsString() const override;
-  std::vector<uint8_t> SerializeAsArray() const override;
-  void Serialize(::protozero::Message*) const;
-
-  bool has_instance_id() const { return _has_field_[1]; }
-  uint64_t instance_id() const { return instance_id_; }
-  void set_instance_id(uint64_t value) { instance_id_ = value; _has_field_.set(1); }
-
- private:
-  uint64_t instance_id_{};
-
-  // Allows to preserve unknown protobuf fields for compatibility
-  // with future versions of .proto files.
-  std::string unknown_fields_;
-
-  std::bitset<2> _has_field_{};
-};
-
-
-class PERFETTO_EXPORT GetAsyncCommandResponse_StartDataSource : public ::protozero::CppMessageObj {
- public:
-  enum FieldNumbers {
-    kNewInstanceIdFieldNumber = 1,
-    kConfigFieldNumber = 2,
-  };
-
-  GetAsyncCommandResponse_StartDataSource();
-  ~GetAsyncCommandResponse_StartDataSource() override;
-  GetAsyncCommandResponse_StartDataSource(GetAsyncCommandResponse_StartDataSource&&) noexcept;
-  GetAsyncCommandResponse_StartDataSource& operator=(GetAsyncCommandResponse_StartDataSource&&);
-  GetAsyncCommandResponse_StartDataSource(const GetAsyncCommandResponse_StartDataSource&);
-  GetAsyncCommandResponse_StartDataSource& operator=(const GetAsyncCommandResponse_StartDataSource&);
-  bool operator==(const GetAsyncCommandResponse_StartDataSource&) const;
-  bool operator!=(const GetAsyncCommandResponse_StartDataSource& other) const { return !(*this == other); }
-
-  bool ParseFromArray(const void*, size_t) override;
-  std::string SerializeAsString() const override;
-  std::vector<uint8_t> SerializeAsArray() const override;
-  void Serialize(::protozero::Message*) const;
-
-  bool has_new_instance_id() const { return _has_field_[1]; }
-  uint64_t new_instance_id() const { return new_instance_id_; }
-  void set_new_instance_id(uint64_t value) { new_instance_id_ = value; _has_field_.set(1); }
-
-  bool has_config() const { return _has_field_[2]; }
-  const DataSourceConfig& config() const { return *config_; }
-  DataSourceConfig* mutable_config() { _has_field_.set(2); return config_.get(); }
-
- private:
-  uint64_t new_instance_id_{};
-  ::protozero::CopyablePtr<DataSourceConfig> config_;
-
-  // Allows to preserve unknown protobuf fields for compatibility
-  // with future versions of .proto files.
-  std::string unknown_fields_;
-
-  std::bitset<3> _has_field_{};
-};
-
-
-class PERFETTO_EXPORT GetAsyncCommandResponse_SetupDataSource : public ::protozero::CppMessageObj {
- public:
-  enum FieldNumbers {
-    kNewInstanceIdFieldNumber = 1,
-    kConfigFieldNumber = 2,
-  };
-
-  GetAsyncCommandResponse_SetupDataSource();
-  ~GetAsyncCommandResponse_SetupDataSource() override;
-  GetAsyncCommandResponse_SetupDataSource(GetAsyncCommandResponse_SetupDataSource&&) noexcept;
-  GetAsyncCommandResponse_SetupDataSource& operator=(GetAsyncCommandResponse_SetupDataSource&&);
-  GetAsyncCommandResponse_SetupDataSource(const GetAsyncCommandResponse_SetupDataSource&);
-  GetAsyncCommandResponse_SetupDataSource& operator=(const GetAsyncCommandResponse_SetupDataSource&);
-  bool operator==(const GetAsyncCommandResponse_SetupDataSource&) const;
-  bool operator!=(const GetAsyncCommandResponse_SetupDataSource& other) const { return !(*this == other); }
-
-  bool ParseFromArray(const void*, size_t) override;
-  std::string SerializeAsString() const override;
-  std::vector<uint8_t> SerializeAsArray() const override;
-  void Serialize(::protozero::Message*) const;
-
-  bool has_new_instance_id() const { return _has_field_[1]; }
-  uint64_t new_instance_id() const { return new_instance_id_; }
-  void set_new_instance_id(uint64_t value) { new_instance_id_ = value; _has_field_.set(1); }
-
-  bool has_config() const { return _has_field_[2]; }
-  const DataSourceConfig& config() const { return *config_; }
-  DataSourceConfig* mutable_config() { _has_field_.set(2); return config_.get(); }
-
- private:
-  uint64_t new_instance_id_{};
-  ::protozero::CopyablePtr<DataSourceConfig> config_;
-
-  // Allows to preserve unknown protobuf fields for compatibility
-  // with future versions of .proto files.
-  std::string unknown_fields_;
-
-  std::bitset<3> _has_field_{};
-};
-
-
-class PERFETTO_EXPORT GetAsyncCommandResponse_SetupTracing : public ::protozero::CppMessageObj {
- public:
-  enum FieldNumbers {
-    kSharedBufferPageSizeKbFieldNumber = 1,
-  };
-
-  GetAsyncCommandResponse_SetupTracing();
-  ~GetAsyncCommandResponse_SetupTracing() override;
-  GetAsyncCommandResponse_SetupTracing(GetAsyncCommandResponse_SetupTracing&&) noexcept;
-  GetAsyncCommandResponse_SetupTracing& operator=(GetAsyncCommandResponse_SetupTracing&&);
-  GetAsyncCommandResponse_SetupTracing(const GetAsyncCommandResponse_SetupTracing&);
-  GetAsyncCommandResponse_SetupTracing& operator=(const GetAsyncCommandResponse_SetupTracing&);
-  bool operator==(const GetAsyncCommandResponse_SetupTracing&) const;
-  bool operator!=(const GetAsyncCommandResponse_SetupTracing& other) const { return !(*this == other); }
-
-  bool ParseFromArray(const void*, size_t) override;
-  std::string SerializeAsString() const override;
-  std::vector<uint8_t> SerializeAsArray() const override;
-  void Serialize(::protozero::Message*) const;
-
-  bool has_shared_buffer_page_size_kb() const { return _has_field_[1]; }
-  uint32_t shared_buffer_page_size_kb() const { return shared_buffer_page_size_kb_; }
-  void set_shared_buffer_page_size_kb(uint32_t value) { shared_buffer_page_size_kb_ = value; _has_field_.set(1); }
-
- private:
-  uint32_t shared_buffer_page_size_kb_{};
-
-  // Allows to preserve unknown protobuf fields for compatibility
-  // with future versions of .proto files.
-  std::string unknown_fields_;
-
-  std::bitset<2> _has_field_{};
-};
-
-
-class PERFETTO_EXPORT GetAsyncCommandRequest : public ::protozero::CppMessageObj {
- public:
-  enum FieldNumbers {
-  };
-
-  GetAsyncCommandRequest();
-  ~GetAsyncCommandRequest() override;
-  GetAsyncCommandRequest(GetAsyncCommandRequest&&) noexcept;
-  GetAsyncCommandRequest& operator=(GetAsyncCommandRequest&&);
-  GetAsyncCommandRequest(const GetAsyncCommandRequest&);
-  GetAsyncCommandRequest& operator=(const GetAsyncCommandRequest&);
-  bool operator==(const GetAsyncCommandRequest&) const;
-  bool operator!=(const GetAsyncCommandRequest& other) const { return !(*this == other); }
-
-  bool ParseFromArray(const void*, size_t) override;
-  std::string SerializeAsString() const override;
-  std::vector<uint8_t> SerializeAsArray() const override;
-  void Serialize(::protozero::Message*) const;
-
- private:
-
-  // Allows to preserve unknown protobuf fields for compatibility
-  // with future versions of .proto files.
-  std::string unknown_fields_;
-
-  std::bitset<2> _has_field_{};
-};
-
-
-class PERFETTO_EXPORT ActivateTriggersResponse : public ::protozero::CppMessageObj {
- public:
-  enum FieldNumbers {
-  };
-
-  ActivateTriggersResponse();
-  ~ActivateTriggersResponse() override;
-  ActivateTriggersResponse(ActivateTriggersResponse&&) noexcept;
-  ActivateTriggersResponse& operator=(ActivateTriggersResponse&&);
-  ActivateTriggersResponse(const ActivateTriggersResponse&);
-  ActivateTriggersResponse& operator=(const ActivateTriggersResponse&);
-  bool operator==(const ActivateTriggersResponse&) const;
-  bool operator!=(const ActivateTriggersResponse& other) const { return !(*this == other); }
-
-  bool ParseFromArray(const void*, size_t) override;
-  std::string SerializeAsString() const override;
-  std::vector<uint8_t> SerializeAsArray() const override;
-  void Serialize(::protozero::Message*) const;
-
- private:
-
-  // Allows to preserve unknown protobuf fields for compatibility
-  // with future versions of .proto files.
-  std::string unknown_fields_;
-
-  std::bitset<2> _has_field_{};
-};
-
-
-class PERFETTO_EXPORT ActivateTriggersRequest : public ::protozero::CppMessageObj {
- public:
-  enum FieldNumbers {
-    kTriggerNamesFieldNumber = 1,
-  };
-
-  ActivateTriggersRequest();
-  ~ActivateTriggersRequest() override;
-  ActivateTriggersRequest(ActivateTriggersRequest&&) noexcept;
-  ActivateTriggersRequest& operator=(ActivateTriggersRequest&&);
-  ActivateTriggersRequest(const ActivateTriggersRequest&);
-  ActivateTriggersRequest& operator=(const ActivateTriggersRequest&);
-  bool operator==(const ActivateTriggersRequest&) const;
-  bool operator!=(const ActivateTriggersRequest& other) const { return !(*this == other); }
-
-  bool ParseFromArray(const void*, size_t) override;
-  std::string SerializeAsString() const override;
-  std::vector<uint8_t> SerializeAsArray() const override;
-  void Serialize(::protozero::Message*) const;
-
-  const std::vector<std::string>& trigger_names() const { return trigger_names_; }
-  std::vector<std::string>* mutable_trigger_names() { return &trigger_names_; }
-  int trigger_names_size() const { return static_cast<int>(trigger_names_.size()); }
-  void clear_trigger_names() { trigger_names_.clear(); }
-  void add_trigger_names(std::string value) { trigger_names_.emplace_back(value); }
-  std::string* add_trigger_names() { trigger_names_.emplace_back(); return &trigger_names_.back(); }
-
- private:
-  std::vector<std::string> trigger_names_;
-
-  // Allows to preserve unknown protobuf fields for compatibility
-  // with future versions of .proto files.
-  std::string unknown_fields_;
-
-  std::bitset<2> _has_field_{};
-};
-
-
-class PERFETTO_EXPORT NotifyDataSourceStoppedResponse : public ::protozero::CppMessageObj {
- public:
-  enum FieldNumbers {
-  };
-
-  NotifyDataSourceStoppedResponse();
-  ~NotifyDataSourceStoppedResponse() override;
-  NotifyDataSourceStoppedResponse(NotifyDataSourceStoppedResponse&&) noexcept;
-  NotifyDataSourceStoppedResponse& operator=(NotifyDataSourceStoppedResponse&&);
-  NotifyDataSourceStoppedResponse(const NotifyDataSourceStoppedResponse&);
-  NotifyDataSourceStoppedResponse& operator=(const NotifyDataSourceStoppedResponse&);
-  bool operator==(const NotifyDataSourceStoppedResponse&) const;
-  bool operator!=(const NotifyDataSourceStoppedResponse& other) const { return !(*this == other); }
-
-  bool ParseFromArray(const void*, size_t) override;
-  std::string SerializeAsString() const override;
-  std::vector<uint8_t> SerializeAsArray() const override;
-  void Serialize(::protozero::Message*) const;
-
- private:
-
-  // Allows to preserve unknown protobuf fields for compatibility
-  // with future versions of .proto files.
-  std::string unknown_fields_;
-
-  std::bitset<2> _has_field_{};
-};
-
-
-class PERFETTO_EXPORT NotifyDataSourceStoppedRequest : public ::protozero::CppMessageObj {
- public:
-  enum FieldNumbers {
-    kDataSourceIdFieldNumber = 1,
-  };
-
-  NotifyDataSourceStoppedRequest();
-  ~NotifyDataSourceStoppedRequest() override;
-  NotifyDataSourceStoppedRequest(NotifyDataSourceStoppedRequest&&) noexcept;
-  NotifyDataSourceStoppedRequest& operator=(NotifyDataSourceStoppedRequest&&);
-  NotifyDataSourceStoppedRequest(const NotifyDataSourceStoppedRequest&);
-  NotifyDataSourceStoppedRequest& operator=(const NotifyDataSourceStoppedRequest&);
-  bool operator==(const NotifyDataSourceStoppedRequest&) const;
-  bool operator!=(const NotifyDataSourceStoppedRequest& other) const { return !(*this == other); }
-
-  bool ParseFromArray(const void*, size_t) override;
-  std::string SerializeAsString() const override;
-  std::vector<uint8_t> SerializeAsArray() const override;
-  void Serialize(::protozero::Message*) const;
-
-  bool has_data_source_id() const { return _has_field_[1]; }
-  uint64_t data_source_id() const { return data_source_id_; }
-  void set_data_source_id(uint64_t value) { data_source_id_ = value; _has_field_.set(1); }
-
- private:
-  uint64_t data_source_id_{};
-
-  // Allows to preserve unknown protobuf fields for compatibility
-  // with future versions of .proto files.
-  std::string unknown_fields_;
-
-  std::bitset<2> _has_field_{};
-};
-
-
-class PERFETTO_EXPORT NotifyDataSourceStartedResponse : public ::protozero::CppMessageObj {
- public:
-  enum FieldNumbers {
-  };
-
-  NotifyDataSourceStartedResponse();
-  ~NotifyDataSourceStartedResponse() override;
-  NotifyDataSourceStartedResponse(NotifyDataSourceStartedResponse&&) noexcept;
-  NotifyDataSourceStartedResponse& operator=(NotifyDataSourceStartedResponse&&);
-  NotifyDataSourceStartedResponse(const NotifyDataSourceStartedResponse&);
-  NotifyDataSourceStartedResponse& operator=(const NotifyDataSourceStartedResponse&);
-  bool operator==(const NotifyDataSourceStartedResponse&) const;
-  bool operator!=(const NotifyDataSourceStartedResponse& other) const { return !(*this == other); }
-
-  bool ParseFromArray(const void*, size_t) override;
-  std::string SerializeAsString() const override;
-  std::vector<uint8_t> SerializeAsArray() const override;
-  void Serialize(::protozero::Message*) const;
-
- private:
-
-  // Allows to preserve unknown protobuf fields for compatibility
-  // with future versions of .proto files.
-  std::string unknown_fields_;
-
-  std::bitset<2> _has_field_{};
-};
-
-
-class PERFETTO_EXPORT NotifyDataSourceStartedRequest : public ::protozero::CppMessageObj {
- public:
-  enum FieldNumbers {
-    kDataSourceIdFieldNumber = 1,
-  };
-
-  NotifyDataSourceStartedRequest();
-  ~NotifyDataSourceStartedRequest() override;
-  NotifyDataSourceStartedRequest(NotifyDataSourceStartedRequest&&) noexcept;
-  NotifyDataSourceStartedRequest& operator=(NotifyDataSourceStartedRequest&&);
-  NotifyDataSourceStartedRequest(const NotifyDataSourceStartedRequest&);
-  NotifyDataSourceStartedRequest& operator=(const NotifyDataSourceStartedRequest&);
-  bool operator==(const NotifyDataSourceStartedRequest&) const;
-  bool operator!=(const NotifyDataSourceStartedRequest& other) const { return !(*this == other); }
-
-  bool ParseFromArray(const void*, size_t) override;
-  std::string SerializeAsString() const override;
-  std::vector<uint8_t> SerializeAsArray() const override;
-  void Serialize(::protozero::Message*) const;
-
-  bool has_data_source_id() const { return _has_field_[1]; }
-  uint64_t data_source_id() const { return data_source_id_; }
-  void set_data_source_id(uint64_t value) { data_source_id_ = value; _has_field_.set(1); }
-
- private:
-  uint64_t data_source_id_{};
-
-  // Allows to preserve unknown protobuf fields for compatibility
-  // with future versions of .proto files.
-  std::string unknown_fields_;
-
-  std::bitset<2> _has_field_{};
-};
-
-
-class PERFETTO_EXPORT CommitDataResponse : public ::protozero::CppMessageObj {
- public:
-  enum FieldNumbers {
-  };
-
-  CommitDataResponse();
-  ~CommitDataResponse() override;
-  CommitDataResponse(CommitDataResponse&&) noexcept;
-  CommitDataResponse& operator=(CommitDataResponse&&);
-  CommitDataResponse(const CommitDataResponse&);
-  CommitDataResponse& operator=(const CommitDataResponse&);
-  bool operator==(const CommitDataResponse&) const;
-  bool operator!=(const CommitDataResponse& other) const { return !(*this == other); }
-
-  bool ParseFromArray(const void*, size_t) override;
-  std::string SerializeAsString() const override;
-  std::vector<uint8_t> SerializeAsArray() const override;
-  void Serialize(::protozero::Message*) const;
-
- private:
-
-  // Allows to preserve unknown protobuf fields for compatibility
-  // with future versions of .proto files.
-  std::string unknown_fields_;
-
-  std::bitset<2> _has_field_{};
-};
-
-
-class PERFETTO_EXPORT UnregisterTraceWriterResponse : public ::protozero::CppMessageObj {
- public:
-  enum FieldNumbers {
-  };
-
-  UnregisterTraceWriterResponse();
-  ~UnregisterTraceWriterResponse() override;
-  UnregisterTraceWriterResponse(UnregisterTraceWriterResponse&&) noexcept;
-  UnregisterTraceWriterResponse& operator=(UnregisterTraceWriterResponse&&);
-  UnregisterTraceWriterResponse(const UnregisterTraceWriterResponse&);
-  UnregisterTraceWriterResponse& operator=(const UnregisterTraceWriterResponse&);
-  bool operator==(const UnregisterTraceWriterResponse&) const;
-  bool operator!=(const UnregisterTraceWriterResponse& other) const { return !(*this == other); }
-
-  bool ParseFromArray(const void*, size_t) override;
-  std::string SerializeAsString() const override;
-  std::vector<uint8_t> SerializeAsArray() const override;
-  void Serialize(::protozero::Message*) const;
-
- private:
-
-  // Allows to preserve unknown protobuf fields for compatibility
-  // with future versions of .proto files.
-  std::string unknown_fields_;
-
-  std::bitset<2> _has_field_{};
-};
-
-
-class PERFETTO_EXPORT UnregisterTraceWriterRequest : public ::protozero::CppMessageObj {
- public:
-  enum FieldNumbers {
-    kTraceWriterIdFieldNumber = 1,
-  };
-
-  UnregisterTraceWriterRequest();
-  ~UnregisterTraceWriterRequest() override;
-  UnregisterTraceWriterRequest(UnregisterTraceWriterRequest&&) noexcept;
-  UnregisterTraceWriterRequest& operator=(UnregisterTraceWriterRequest&&);
-  UnregisterTraceWriterRequest(const UnregisterTraceWriterRequest&);
-  UnregisterTraceWriterRequest& operator=(const UnregisterTraceWriterRequest&);
-  bool operator==(const UnregisterTraceWriterRequest&) const;
-  bool operator!=(const UnregisterTraceWriterRequest& other) const { return !(*this == other); }
-
-  bool ParseFromArray(const void*, size_t) override;
-  std::string SerializeAsString() const override;
-  std::vector<uint8_t> SerializeAsArray() const override;
-  void Serialize(::protozero::Message*) const;
-
-  bool has_trace_writer_id() const { return _has_field_[1]; }
-  uint32_t trace_writer_id() const { return trace_writer_id_; }
-  void set_trace_writer_id(uint32_t value) { trace_writer_id_ = value; _has_field_.set(1); }
-
- private:
-  uint32_t trace_writer_id_{};
-
-  // Allows to preserve unknown protobuf fields for compatibility
-  // with future versions of .proto files.
-  std::string unknown_fields_;
-
-  std::bitset<2> _has_field_{};
-};
-
-
-class PERFETTO_EXPORT RegisterTraceWriterResponse : public ::protozero::CppMessageObj {
- public:
-  enum FieldNumbers {
-  };
-
-  RegisterTraceWriterResponse();
-  ~RegisterTraceWriterResponse() override;
-  RegisterTraceWriterResponse(RegisterTraceWriterResponse&&) noexcept;
-  RegisterTraceWriterResponse& operator=(RegisterTraceWriterResponse&&);
-  RegisterTraceWriterResponse(const RegisterTraceWriterResponse&);
-  RegisterTraceWriterResponse& operator=(const RegisterTraceWriterResponse&);
-  bool operator==(const RegisterTraceWriterResponse&) const;
-  bool operator!=(const RegisterTraceWriterResponse& other) const { return !(*this == other); }
-
-  bool ParseFromArray(const void*, size_t) override;
-  std::string SerializeAsString() const override;
-  std::vector<uint8_t> SerializeAsArray() const override;
-  void Serialize(::protozero::Message*) const;
-
- private:
-
-  // Allows to preserve unknown protobuf fields for compatibility
-  // with future versions of .proto files.
-  std::string unknown_fields_;
-
-  std::bitset<2> _has_field_{};
-};
-
-
-class PERFETTO_EXPORT RegisterTraceWriterRequest : public ::protozero::CppMessageObj {
- public:
-  enum FieldNumbers {
-    kTraceWriterIdFieldNumber = 1,
-    kTargetBufferFieldNumber = 2,
-  };
-
-  RegisterTraceWriterRequest();
-  ~RegisterTraceWriterRequest() override;
-  RegisterTraceWriterRequest(RegisterTraceWriterRequest&&) noexcept;
-  RegisterTraceWriterRequest& operator=(RegisterTraceWriterRequest&&);
-  RegisterTraceWriterRequest(const RegisterTraceWriterRequest&);
-  RegisterTraceWriterRequest& operator=(const RegisterTraceWriterRequest&);
-  bool operator==(const RegisterTraceWriterRequest&) const;
-  bool operator!=(const RegisterTraceWriterRequest& other) const { return !(*this == other); }
-
-  bool ParseFromArray(const void*, size_t) override;
-  std::string SerializeAsString() const override;
-  std::vector<uint8_t> SerializeAsArray() const override;
-  void Serialize(::protozero::Message*) const;
-
-  bool has_trace_writer_id() const { return _has_field_[1]; }
-  uint32_t trace_writer_id() const { return trace_writer_id_; }
-  void set_trace_writer_id(uint32_t value) { trace_writer_id_ = value; _has_field_.set(1); }
-
-  bool has_target_buffer() const { return _has_field_[2]; }
-  uint32_t target_buffer() const { return target_buffer_; }
-  void set_target_buffer(uint32_t value) { target_buffer_ = value; _has_field_.set(2); }
-
- private:
-  uint32_t trace_writer_id_{};
-  uint32_t target_buffer_{};
-
-  // Allows to preserve unknown protobuf fields for compatibility
-  // with future versions of .proto files.
-  std::string unknown_fields_;
-
-  std::bitset<3> _has_field_{};
-};
-
-
-class PERFETTO_EXPORT UnregisterDataSourceResponse : public ::protozero::CppMessageObj {
- public:
-  enum FieldNumbers {
-  };
-
-  UnregisterDataSourceResponse();
-  ~UnregisterDataSourceResponse() override;
-  UnregisterDataSourceResponse(UnregisterDataSourceResponse&&) noexcept;
-  UnregisterDataSourceResponse& operator=(UnregisterDataSourceResponse&&);
-  UnregisterDataSourceResponse(const UnregisterDataSourceResponse&);
-  UnregisterDataSourceResponse& operator=(const UnregisterDataSourceResponse&);
-  bool operator==(const UnregisterDataSourceResponse&) const;
-  bool operator!=(const UnregisterDataSourceResponse& other) const { return !(*this == other); }
-
-  bool ParseFromArray(const void*, size_t) override;
-  std::string SerializeAsString() const override;
-  std::vector<uint8_t> SerializeAsArray() const override;
-  void Serialize(::protozero::Message*) const;
-
- private:
-
-  // Allows to preserve unknown protobuf fields for compatibility
-  // with future versions of .proto files.
-  std::string unknown_fields_;
-
-  std::bitset<2> _has_field_{};
-};
-
-
-class PERFETTO_EXPORT UnregisterDataSourceRequest : public ::protozero::CppMessageObj {
- public:
-  enum FieldNumbers {
-    kDataSourceNameFieldNumber = 1,
-  };
-
-  UnregisterDataSourceRequest();
-  ~UnregisterDataSourceRequest() override;
-  UnregisterDataSourceRequest(UnregisterDataSourceRequest&&) noexcept;
-  UnregisterDataSourceRequest& operator=(UnregisterDataSourceRequest&&);
-  UnregisterDataSourceRequest(const UnregisterDataSourceRequest&);
-  UnregisterDataSourceRequest& operator=(const UnregisterDataSourceRequest&);
-  bool operator==(const UnregisterDataSourceRequest&) const;
-  bool operator!=(const UnregisterDataSourceRequest& other) const { return !(*this == other); }
-
-  bool ParseFromArray(const void*, size_t) override;
-  std::string SerializeAsString() const override;
-  std::vector<uint8_t> SerializeAsArray() const override;
-  void Serialize(::protozero::Message*) const;
-
-  bool has_data_source_name() const { return _has_field_[1]; }
-  const std::string& data_source_name() const { return data_source_name_; }
-  void set_data_source_name(const std::string& value) { data_source_name_ = value; _has_field_.set(1); }
-
- private:
-  std::string data_source_name_{};
-
-  // Allows to preserve unknown protobuf fields for compatibility
-  // with future versions of .proto files.
-  std::string unknown_fields_;
-
-  std::bitset<2> _has_field_{};
-};
-
-
-class PERFETTO_EXPORT RegisterDataSourceResponse : public ::protozero::CppMessageObj {
- public:
-  enum FieldNumbers {
-    kErrorFieldNumber = 1,
-  };
-
-  RegisterDataSourceResponse();
-  ~RegisterDataSourceResponse() override;
-  RegisterDataSourceResponse(RegisterDataSourceResponse&&) noexcept;
-  RegisterDataSourceResponse& operator=(RegisterDataSourceResponse&&);
-  RegisterDataSourceResponse(const RegisterDataSourceResponse&);
-  RegisterDataSourceResponse& operator=(const RegisterDataSourceResponse&);
-  bool operator==(const RegisterDataSourceResponse&) const;
-  bool operator!=(const RegisterDataSourceResponse& other) const { return !(*this == other); }
-
-  bool ParseFromArray(const void*, size_t) override;
-  std::string SerializeAsString() const override;
-  std::vector<uint8_t> SerializeAsArray() const override;
-  void Serialize(::protozero::Message*) const;
-
-  bool has_error() const { return _has_field_[1]; }
-  const std::string& error() const { return error_; }
-  void set_error(const std::string& value) { error_ = value; _has_field_.set(1); }
-
- private:
-  std::string error_{};
-
-  // Allows to preserve unknown protobuf fields for compatibility
-  // with future versions of .proto files.
-  std::string unknown_fields_;
-
-  std::bitset<2> _has_field_{};
-};
-
-
-class PERFETTO_EXPORT RegisterDataSourceRequest : public ::protozero::CppMessageObj {
- public:
-  enum FieldNumbers {
-    kDataSourceDescriptorFieldNumber = 1,
-  };
-
-  RegisterDataSourceRequest();
-  ~RegisterDataSourceRequest() override;
-  RegisterDataSourceRequest(RegisterDataSourceRequest&&) noexcept;
-  RegisterDataSourceRequest& operator=(RegisterDataSourceRequest&&);
-  RegisterDataSourceRequest(const RegisterDataSourceRequest&);
-  RegisterDataSourceRequest& operator=(const RegisterDataSourceRequest&);
-  bool operator==(const RegisterDataSourceRequest&) const;
-  bool operator!=(const RegisterDataSourceRequest& other) const { return !(*this == other); }
-
-  bool ParseFromArray(const void*, size_t) override;
-  std::string SerializeAsString() const override;
-  std::vector<uint8_t> SerializeAsArray() const override;
-  void Serialize(::protozero::Message*) const;
-
-  bool has_data_source_descriptor() const { return _has_field_[1]; }
-  const DataSourceDescriptor& data_source_descriptor() const { return *data_source_descriptor_; }
-  DataSourceDescriptor* mutable_data_source_descriptor() { _has_field_.set(1); return data_source_descriptor_.get(); }
-
- private:
-  ::protozero::CopyablePtr<DataSourceDescriptor> data_source_descriptor_;
-
-  // Allows to preserve unknown protobuf fields for compatibility
-  // with future versions of .proto files.
-  std::string unknown_fields_;
-
-  std::bitset<2> _has_field_{};
-};
-
-
-class PERFETTO_EXPORT InitializeConnectionResponse : public ::protozero::CppMessageObj {
- public:
-  enum FieldNumbers {
-    kUsingShmemProvidedByProducerFieldNumber = 1,
-    kDirectSmbPatchingSupportedFieldNumber = 2,
-  };
-
-  InitializeConnectionResponse();
-  ~InitializeConnectionResponse() override;
-  InitializeConnectionResponse(InitializeConnectionResponse&&) noexcept;
-  InitializeConnectionResponse& operator=(InitializeConnectionResponse&&);
-  InitializeConnectionResponse(const InitializeConnectionResponse&);
-  InitializeConnectionResponse& operator=(const InitializeConnectionResponse&);
-  bool operator==(const InitializeConnectionResponse&) const;
-  bool operator!=(const InitializeConnectionResponse& other) const { return !(*this == other); }
-
-  bool ParseFromArray(const void*, size_t) override;
-  std::string SerializeAsString() const override;
-  std::vector<uint8_t> SerializeAsArray() const override;
-  void Serialize(::protozero::Message*) const;
-
-  bool has_using_shmem_provided_by_producer() const { return _has_field_[1]; }
-  bool using_shmem_provided_by_producer() const { return using_shmem_provided_by_producer_; }
-  void set_using_shmem_provided_by_producer(bool value) { using_shmem_provided_by_producer_ = value; _has_field_.set(1); }
-
-  bool has_direct_smb_patching_supported() const { return _has_field_[2]; }
-  bool direct_smb_patching_supported() const { return direct_smb_patching_supported_; }
-  void set_direct_smb_patching_supported(bool value) { direct_smb_patching_supported_ = value; _has_field_.set(2); }
-
- private:
-  bool using_shmem_provided_by_producer_{};
-  bool direct_smb_patching_supported_{};
-
-  // Allows to preserve unknown protobuf fields for compatibility
-  // with future versions of .proto files.
-  std::string unknown_fields_;
-
-  std::bitset<3> _has_field_{};
-};
-
-
-class PERFETTO_EXPORT InitializeConnectionRequest : public ::protozero::CppMessageObj {
- public:
-  using ProducerSMBScrapingMode = InitializeConnectionRequest_ProducerSMBScrapingMode;
-  static constexpr auto SMB_SCRAPING_UNSPECIFIED = InitializeConnectionRequest_ProducerSMBScrapingMode_SMB_SCRAPING_UNSPECIFIED;
-  static constexpr auto SMB_SCRAPING_ENABLED = InitializeConnectionRequest_ProducerSMBScrapingMode_SMB_SCRAPING_ENABLED;
-  static constexpr auto SMB_SCRAPING_DISABLED = InitializeConnectionRequest_ProducerSMBScrapingMode_SMB_SCRAPING_DISABLED;
-  static constexpr auto ProducerSMBScrapingMode_MIN = InitializeConnectionRequest_ProducerSMBScrapingMode_SMB_SCRAPING_UNSPECIFIED;
-  static constexpr auto ProducerSMBScrapingMode_MAX = InitializeConnectionRequest_ProducerSMBScrapingMode_SMB_SCRAPING_DISABLED;
-  using ProducerBuildFlags = InitializeConnectionRequest_ProducerBuildFlags;
-  static constexpr auto BUILD_FLAGS_UNSPECIFIED = InitializeConnectionRequest_ProducerBuildFlags_BUILD_FLAGS_UNSPECIFIED;
-  static constexpr auto BUILD_FLAGS_DCHECKS_ON = InitializeConnectionRequest_ProducerBuildFlags_BUILD_FLAGS_DCHECKS_ON;
-  static constexpr auto BUILD_FLAGS_DCHECKS_OFF = InitializeConnectionRequest_ProducerBuildFlags_BUILD_FLAGS_DCHECKS_OFF;
-  static constexpr auto ProducerBuildFlags_MIN = InitializeConnectionRequest_ProducerBuildFlags_BUILD_FLAGS_UNSPECIFIED;
-  static constexpr auto ProducerBuildFlags_MAX = InitializeConnectionRequest_ProducerBuildFlags_BUILD_FLAGS_DCHECKS_OFF;
-  enum FieldNumbers {
-    kSharedMemoryPageSizeHintBytesFieldNumber = 1,
-    kSharedMemorySizeHintBytesFieldNumber = 2,
-    kProducerNameFieldNumber = 3,
-    kSmbScrapingModeFieldNumber = 4,
-    kBuildFlagsFieldNumber = 5,
-    kProducerProvidedShmemFieldNumber = 6,
-    kSdkVersionFieldNumber = 8,
-  };
-
-  InitializeConnectionRequest();
-  ~InitializeConnectionRequest() override;
-  InitializeConnectionRequest(InitializeConnectionRequest&&) noexcept;
-  InitializeConnectionRequest& operator=(InitializeConnectionRequest&&);
-  InitializeConnectionRequest(const InitializeConnectionRequest&);
-  InitializeConnectionRequest& operator=(const InitializeConnectionRequest&);
-  bool operator==(const InitializeConnectionRequest&) const;
-  bool operator!=(const InitializeConnectionRequest& other) const { return !(*this == other); }
-
-  bool ParseFromArray(const void*, size_t) override;
-  std::string SerializeAsString() const override;
-  std::vector<uint8_t> SerializeAsArray() const override;
-  void Serialize(::protozero::Message*) const;
-
-  bool has_shared_memory_page_size_hint_bytes() const { return _has_field_[1]; }
-  uint32_t shared_memory_page_size_hint_bytes() const { return shared_memory_page_size_hint_bytes_; }
-  void set_shared_memory_page_size_hint_bytes(uint32_t value) { shared_memory_page_size_hint_bytes_ = value; _has_field_.set(1); }
-
-  bool has_shared_memory_size_hint_bytes() const { return _has_field_[2]; }
-  uint32_t shared_memory_size_hint_bytes() const { return shared_memory_size_hint_bytes_; }
-  void set_shared_memory_size_hint_bytes(uint32_t value) { shared_memory_size_hint_bytes_ = value; _has_field_.set(2); }
-
-  bool has_producer_name() const { return _has_field_[3]; }
-  const std::string& producer_name() const { return producer_name_; }
-  void set_producer_name(const std::string& value) { producer_name_ = value; _has_field_.set(3); }
-
-  bool has_smb_scraping_mode() const { return _has_field_[4]; }
-  InitializeConnectionRequest_ProducerSMBScrapingMode smb_scraping_mode() const { return smb_scraping_mode_; }
-  void set_smb_scraping_mode(InitializeConnectionRequest_ProducerSMBScrapingMode value) { smb_scraping_mode_ = value; _has_field_.set(4); }
-
-  bool has_build_flags() const { return _has_field_[5]; }
-  InitializeConnectionRequest_ProducerBuildFlags build_flags() const { return build_flags_; }
-  void set_build_flags(InitializeConnectionRequest_ProducerBuildFlags value) { build_flags_ = value; _has_field_.set(5); }
-
-  bool has_producer_provided_shmem() const { return _has_field_[6]; }
-  bool producer_provided_shmem() const { return producer_provided_shmem_; }
-  void set_producer_provided_shmem(bool value) { producer_provided_shmem_ = value; _has_field_.set(6); }
-
-  bool has_sdk_version() const { return _has_field_[8]; }
-  const std::string& sdk_version() const { return sdk_version_; }
-  void set_sdk_version(const std::string& value) { sdk_version_ = value; _has_field_.set(8); }
-
- private:
-  uint32_t shared_memory_page_size_hint_bytes_{};
-  uint32_t shared_memory_size_hint_bytes_{};
-  std::string producer_name_{};
-  InitializeConnectionRequest_ProducerSMBScrapingMode smb_scraping_mode_{};
-  InitializeConnectionRequest_ProducerBuildFlags build_flags_{};
-  bool producer_provided_shmem_{};
-  std::string sdk_version_{};
-
-  // Allows to preserve unknown protobuf fields for compatibility
-  // with future versions of .proto files.
-  std::string unknown_fields_;
-
-  std::bitset<9> _has_field_{};
-};
-
-}  // namespace perfetto
-}  // namespace protos
-}  // namespace gen
-
-#endif  // PERFETTO_PROTOS_PROTOS_PERFETTO_IPC_PRODUCER_PORT_PROTO_CPP_H_
-// gen_amalgamated begin header: gen/protos/perfetto/ipc/wire_protocol.gen.h
-// DO NOT EDIT. Autogenerated by Perfetto cppgen_plugin
-#ifndef PERFETTO_PROTOS_PROTOS_PERFETTO_IPC_WIRE_PROTOCOL_PROTO_CPP_H_
-#define PERFETTO_PROTOS_PROTOS_PERFETTO_IPC_WIRE_PROTOCOL_PROTO_CPP_H_
-
-#include <stdint.h>
-#include <bitset>
-#include <vector>
-#include <string>
-#include <type_traits>
-
-// gen_amalgamated expanded: #include "perfetto/protozero/cpp_message_obj.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/copyable_ptr.h"
-// gen_amalgamated expanded: #include "perfetto/base/export.h"
-
-namespace perfetto {
-namespace protos {
-namespace gen {
-class IPCFrame;
-class IPCFrame_RequestError;
-class IPCFrame_InvokeMethodReply;
-class IPCFrame_InvokeMethod;
-class IPCFrame_BindServiceReply;
-class IPCFrame_BindServiceReply_MethodInfo;
-class IPCFrame_BindService;
-}  // namespace perfetto
-}  // namespace protos
-}  // namespace gen
-
-namespace protozero {
-class Message;
-}  // namespace protozero
-
-namespace perfetto {
-namespace protos {
-namespace gen {
-
-class PERFETTO_EXPORT IPCFrame : public ::protozero::CppMessageObj {
- public:
-  using BindService = IPCFrame_BindService;
-  using BindServiceReply = IPCFrame_BindServiceReply;
-  using InvokeMethod = IPCFrame_InvokeMethod;
-  using InvokeMethodReply = IPCFrame_InvokeMethodReply;
-  using RequestError = IPCFrame_RequestError;
-  enum FieldNumbers {
-    kRequestIdFieldNumber = 2,
-    kMsgBindServiceFieldNumber = 3,
-    kMsgBindServiceReplyFieldNumber = 4,
-    kMsgInvokeMethodFieldNumber = 5,
-    kMsgInvokeMethodReplyFieldNumber = 6,
-    kMsgRequestErrorFieldNumber = 7,
-    kDataForTestingFieldNumber = 1,
-  };
-
-  IPCFrame();
-  ~IPCFrame() override;
-  IPCFrame(IPCFrame&&) noexcept;
-  IPCFrame& operator=(IPCFrame&&);
-  IPCFrame(const IPCFrame&);
-  IPCFrame& operator=(const IPCFrame&);
-  bool operator==(const IPCFrame&) const;
-  bool operator!=(const IPCFrame& other) const { return !(*this == other); }
-
-  bool ParseFromArray(const void*, size_t) override;
-  std::string SerializeAsString() const override;
-  std::vector<uint8_t> SerializeAsArray() const override;
-  void Serialize(::protozero::Message*) const;
-
-  bool has_request_id() const { return _has_field_[2]; }
-  uint64_t request_id() const { return request_id_; }
-  void set_request_id(uint64_t value) { request_id_ = value; _has_field_.set(2); }
-
-  bool has_msg_bind_service() const { return _has_field_[3]; }
-  const IPCFrame_BindService& msg_bind_service() const { return *msg_bind_service_; }
-  IPCFrame_BindService* mutable_msg_bind_service() { _has_field_.set(3); return msg_bind_service_.get(); }
-
-  bool has_msg_bind_service_reply() const { return _has_field_[4]; }
-  const IPCFrame_BindServiceReply& msg_bind_service_reply() const { return *msg_bind_service_reply_; }
-  IPCFrame_BindServiceReply* mutable_msg_bind_service_reply() { _has_field_.set(4); return msg_bind_service_reply_.get(); }
-
-  bool has_msg_invoke_method() const { return _has_field_[5]; }
-  const IPCFrame_InvokeMethod& msg_invoke_method() const { return *msg_invoke_method_; }
-  IPCFrame_InvokeMethod* mutable_msg_invoke_method() { _has_field_.set(5); return msg_invoke_method_.get(); }
-
-  bool has_msg_invoke_method_reply() const { return _has_field_[6]; }
-  const IPCFrame_InvokeMethodReply& msg_invoke_method_reply() const { return *msg_invoke_method_reply_; }
-  IPCFrame_InvokeMethodReply* mutable_msg_invoke_method_reply() { _has_field_.set(6); return msg_invoke_method_reply_.get(); }
-
-  bool has_msg_request_error() const { return _has_field_[7]; }
-  const IPCFrame_RequestError& msg_request_error() const { return *msg_request_error_; }
-  IPCFrame_RequestError* mutable_msg_request_error() { _has_field_.set(7); return msg_request_error_.get(); }
-
-  const std::vector<std::string>& data_for_testing() const { return data_for_testing_; }
-  std::vector<std::string>* mutable_data_for_testing() { return &data_for_testing_; }
-  int data_for_testing_size() const { return static_cast<int>(data_for_testing_.size()); }
-  void clear_data_for_testing() { data_for_testing_.clear(); }
-  void add_data_for_testing(std::string value) { data_for_testing_.emplace_back(value); }
-  std::string* add_data_for_testing() { data_for_testing_.emplace_back(); return &data_for_testing_.back(); }
-
- private:
-  uint64_t request_id_{};
-  ::protozero::CopyablePtr<IPCFrame_BindService> msg_bind_service_;
-  ::protozero::CopyablePtr<IPCFrame_BindServiceReply> msg_bind_service_reply_;
-  ::protozero::CopyablePtr<IPCFrame_InvokeMethod> msg_invoke_method_;
-  ::protozero::CopyablePtr<IPCFrame_InvokeMethodReply> msg_invoke_method_reply_;
-  ::protozero::CopyablePtr<IPCFrame_RequestError> msg_request_error_;
-  std::vector<std::string> data_for_testing_;
-
-  // Allows to preserve unknown protobuf fields for compatibility
-  // with future versions of .proto files.
-  std::string unknown_fields_;
-
-  std::bitset<8> _has_field_{};
-};
-
-
-class PERFETTO_EXPORT IPCFrame_RequestError : public ::protozero::CppMessageObj {
- public:
-  enum FieldNumbers {
-    kErrorFieldNumber = 1,
-  };
-
-  IPCFrame_RequestError();
-  ~IPCFrame_RequestError() override;
-  IPCFrame_RequestError(IPCFrame_RequestError&&) noexcept;
-  IPCFrame_RequestError& operator=(IPCFrame_RequestError&&);
-  IPCFrame_RequestError(const IPCFrame_RequestError&);
-  IPCFrame_RequestError& operator=(const IPCFrame_RequestError&);
-  bool operator==(const IPCFrame_RequestError&) const;
-  bool operator!=(const IPCFrame_RequestError& other) const { return !(*this == other); }
-
-  bool ParseFromArray(const void*, size_t) override;
-  std::string SerializeAsString() const override;
-  std::vector<uint8_t> SerializeAsArray() const override;
-  void Serialize(::protozero::Message*) const;
-
-  bool has_error() const { return _has_field_[1]; }
-  const std::string& error() const { return error_; }
-  void set_error(const std::string& value) { error_ = value; _has_field_.set(1); }
-
- private:
-  std::string error_{};
-
-  // Allows to preserve unknown protobuf fields for compatibility
-  // with future versions of .proto files.
-  std::string unknown_fields_;
-
-  std::bitset<2> _has_field_{};
-};
-
-
-class PERFETTO_EXPORT IPCFrame_InvokeMethodReply : public ::protozero::CppMessageObj {
- public:
-  enum FieldNumbers {
-    kSuccessFieldNumber = 1,
-    kHasMoreFieldNumber = 2,
-    kReplyProtoFieldNumber = 3,
-  };
-
-  IPCFrame_InvokeMethodReply();
-  ~IPCFrame_InvokeMethodReply() override;
-  IPCFrame_InvokeMethodReply(IPCFrame_InvokeMethodReply&&) noexcept;
-  IPCFrame_InvokeMethodReply& operator=(IPCFrame_InvokeMethodReply&&);
-  IPCFrame_InvokeMethodReply(const IPCFrame_InvokeMethodReply&);
-  IPCFrame_InvokeMethodReply& operator=(const IPCFrame_InvokeMethodReply&);
-  bool operator==(const IPCFrame_InvokeMethodReply&) const;
-  bool operator!=(const IPCFrame_InvokeMethodReply& other) const { return !(*this == other); }
-
-  bool ParseFromArray(const void*, size_t) override;
-  std::string SerializeAsString() const override;
-  std::vector<uint8_t> SerializeAsArray() const override;
-  void Serialize(::protozero::Message*) const;
-
-  bool has_success() const { return _has_field_[1]; }
-  bool success() const { return success_; }
-  void set_success(bool value) { success_ = value; _has_field_.set(1); }
-
-  bool has_has_more() const { return _has_field_[2]; }
-  bool has_more() const { return has_more_; }
-  void set_has_more(bool value) { has_more_ = value; _has_field_.set(2); }
-
-  bool has_reply_proto() const { return _has_field_[3]; }
-  const std::string& reply_proto() const { return reply_proto_; }
-  void set_reply_proto(const std::string& value) { reply_proto_ = value; _has_field_.set(3); }
-  void set_reply_proto(const void* p, size_t s) { reply_proto_.assign(reinterpret_cast<const char*>(p), s); _has_field_.set(3); }
-
- private:
-  bool success_{};
-  bool has_more_{};
-  std::string reply_proto_{};
-
-  // Allows to preserve unknown protobuf fields for compatibility
-  // with future versions of .proto files.
-  std::string unknown_fields_;
-
-  std::bitset<4> _has_field_{};
-};
-
-
-class PERFETTO_EXPORT IPCFrame_InvokeMethod : public ::protozero::CppMessageObj {
- public:
-  enum FieldNumbers {
-    kServiceIdFieldNumber = 1,
-    kMethodIdFieldNumber = 2,
-    kArgsProtoFieldNumber = 3,
-    kDropReplyFieldNumber = 4,
-  };
-
-  IPCFrame_InvokeMethod();
-  ~IPCFrame_InvokeMethod() override;
-  IPCFrame_InvokeMethod(IPCFrame_InvokeMethod&&) noexcept;
-  IPCFrame_InvokeMethod& operator=(IPCFrame_InvokeMethod&&);
-  IPCFrame_InvokeMethod(const IPCFrame_InvokeMethod&);
-  IPCFrame_InvokeMethod& operator=(const IPCFrame_InvokeMethod&);
-  bool operator==(const IPCFrame_InvokeMethod&) const;
-  bool operator!=(const IPCFrame_InvokeMethod& other) const { return !(*this == other); }
-
-  bool ParseFromArray(const void*, size_t) override;
-  std::string SerializeAsString() const override;
-  std::vector<uint8_t> SerializeAsArray() const override;
-  void Serialize(::protozero::Message*) const;
-
-  bool has_service_id() const { return _has_field_[1]; }
-  uint32_t service_id() const { return service_id_; }
-  void set_service_id(uint32_t value) { service_id_ = value; _has_field_.set(1); }
-
-  bool has_method_id() const { return _has_field_[2]; }
-  uint32_t method_id() const { return method_id_; }
-  void set_method_id(uint32_t value) { method_id_ = value; _has_field_.set(2); }
-
-  bool has_args_proto() const { return _has_field_[3]; }
-  const std::string& args_proto() const { return args_proto_; }
-  void set_args_proto(const std::string& value) { args_proto_ = value; _has_field_.set(3); }
-  void set_args_proto(const void* p, size_t s) { args_proto_.assign(reinterpret_cast<const char*>(p), s); _has_field_.set(3); }
-
-  bool has_drop_reply() const { return _has_field_[4]; }
-  bool drop_reply() const { return drop_reply_; }
-  void set_drop_reply(bool value) { drop_reply_ = value; _has_field_.set(4); }
-
- private:
-  uint32_t service_id_{};
-  uint32_t method_id_{};
-  std::string args_proto_{};
-  bool drop_reply_{};
-
-  // Allows to preserve unknown protobuf fields for compatibility
-  // with future versions of .proto files.
-  std::string unknown_fields_;
-
-  std::bitset<5> _has_field_{};
-};
-
-
-class PERFETTO_EXPORT IPCFrame_BindServiceReply : public ::protozero::CppMessageObj {
- public:
-  using MethodInfo = IPCFrame_BindServiceReply_MethodInfo;
-  enum FieldNumbers {
-    kSuccessFieldNumber = 1,
-    kServiceIdFieldNumber = 2,
-    kMethodsFieldNumber = 3,
-  };
-
-  IPCFrame_BindServiceReply();
-  ~IPCFrame_BindServiceReply() override;
-  IPCFrame_BindServiceReply(IPCFrame_BindServiceReply&&) noexcept;
-  IPCFrame_BindServiceReply& operator=(IPCFrame_BindServiceReply&&);
-  IPCFrame_BindServiceReply(const IPCFrame_BindServiceReply&);
-  IPCFrame_BindServiceReply& operator=(const IPCFrame_BindServiceReply&);
-  bool operator==(const IPCFrame_BindServiceReply&) const;
-  bool operator!=(const IPCFrame_BindServiceReply& other) const { return !(*this == other); }
-
-  bool ParseFromArray(const void*, size_t) override;
-  std::string SerializeAsString() const override;
-  std::vector<uint8_t> SerializeAsArray() const override;
-  void Serialize(::protozero::Message*) const;
-
-  bool has_success() const { return _has_field_[1]; }
-  bool success() const { return success_; }
-  void set_success(bool value) { success_ = value; _has_field_.set(1); }
-
-  bool has_service_id() const { return _has_field_[2]; }
-  uint32_t service_id() const { return service_id_; }
-  void set_service_id(uint32_t value) { service_id_ = value; _has_field_.set(2); }
-
-  const std::vector<IPCFrame_BindServiceReply_MethodInfo>& methods() const { return methods_; }
-  std::vector<IPCFrame_BindServiceReply_MethodInfo>* mutable_methods() { return &methods_; }
-  int methods_size() const;
-  void clear_methods();
-  IPCFrame_BindServiceReply_MethodInfo* add_methods();
-
- private:
-  bool success_{};
-  uint32_t service_id_{};
-  std::vector<IPCFrame_BindServiceReply_MethodInfo> methods_;
-
-  // Allows to preserve unknown protobuf fields for compatibility
-  // with future versions of .proto files.
-  std::string unknown_fields_;
-
-  std::bitset<4> _has_field_{};
-};
-
-
-class PERFETTO_EXPORT IPCFrame_BindServiceReply_MethodInfo : public ::protozero::CppMessageObj {
- public:
-  enum FieldNumbers {
-    kIdFieldNumber = 1,
-    kNameFieldNumber = 2,
-  };
-
-  IPCFrame_BindServiceReply_MethodInfo();
-  ~IPCFrame_BindServiceReply_MethodInfo() override;
-  IPCFrame_BindServiceReply_MethodInfo(IPCFrame_BindServiceReply_MethodInfo&&) noexcept;
-  IPCFrame_BindServiceReply_MethodInfo& operator=(IPCFrame_BindServiceReply_MethodInfo&&);
-  IPCFrame_BindServiceReply_MethodInfo(const IPCFrame_BindServiceReply_MethodInfo&);
-  IPCFrame_BindServiceReply_MethodInfo& operator=(const IPCFrame_BindServiceReply_MethodInfo&);
-  bool operator==(const IPCFrame_BindServiceReply_MethodInfo&) const;
-  bool operator!=(const IPCFrame_BindServiceReply_MethodInfo& other) const { return !(*this == other); }
-
-  bool ParseFromArray(const void*, size_t) override;
-  std::string SerializeAsString() const override;
-  std::vector<uint8_t> SerializeAsArray() const override;
-  void Serialize(::protozero::Message*) const;
-
-  bool has_id() const { return _has_field_[1]; }
-  uint32_t id() const { return id_; }
-  void set_id(uint32_t value) { id_ = value; _has_field_.set(1); }
-
-  bool has_name() const { return _has_field_[2]; }
-  const std::string& name() const { return name_; }
-  void set_name(const std::string& value) { name_ = value; _has_field_.set(2); }
-
- private:
-  uint32_t id_{};
-  std::string name_{};
-
-  // Allows to preserve unknown protobuf fields for compatibility
-  // with future versions of .proto files.
-  std::string unknown_fields_;
-
-  std::bitset<3> _has_field_{};
-};
-
-
-class PERFETTO_EXPORT IPCFrame_BindService : public ::protozero::CppMessageObj {
- public:
-  enum FieldNumbers {
-    kServiceNameFieldNumber = 1,
-  };
-
-  IPCFrame_BindService();
-  ~IPCFrame_BindService() override;
-  IPCFrame_BindService(IPCFrame_BindService&&) noexcept;
-  IPCFrame_BindService& operator=(IPCFrame_BindService&&);
-  IPCFrame_BindService(const IPCFrame_BindService&);
-  IPCFrame_BindService& operator=(const IPCFrame_BindService&);
-  bool operator==(const IPCFrame_BindService&) const;
-  bool operator!=(const IPCFrame_BindService& other) const { return !(*this == other); }
-
-  bool ParseFromArray(const void*, size_t) override;
-  std::string SerializeAsString() const override;
-  std::vector<uint8_t> SerializeAsArray() const override;
-  void Serialize(::protozero::Message*) const;
-
-  bool has_service_name() const { return _has_field_[1]; }
-  const std::string& service_name() const { return service_name_; }
-  void set_service_name(const std::string& value) { service_name_ = value; _has_field_.set(1); }
-
- private:
-  std::string service_name_{};
-
-  // Allows to preserve unknown protobuf fields for compatibility
-  // with future versions of .proto files.
-  std::string unknown_fields_;
-
-  std::bitset<2> _has_field_{};
-};
-
-}  // namespace perfetto
-}  // namespace protos
-}  // namespace gen
-
-#endif  // PERFETTO_PROTOS_PROTOS_PERFETTO_IPC_WIRE_PROTOCOL_PROTO_CPP_H_
-// gen_amalgamated begin header: include/perfetto/protozero/contiguous_memory_range.h
-/*
- * Copyright (C) 2017 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef INCLUDE_PERFETTO_PROTOZERO_CONTIGUOUS_MEMORY_RANGE_H_
-#define INCLUDE_PERFETTO_PROTOZERO_CONTIGUOUS_MEMORY_RANGE_H_
-
-#include <assert.h>
-#include <stddef.h>
-#include <stdint.h>
-
-namespace protozero {
-
-// Keep this struct trivially constructible (no ctors, no default initializers).
-struct ContiguousMemoryRange {
-  uint8_t* begin;
-  uint8_t* end;  // STL style: one byte past the end of the buffer.
-
-  inline bool is_valid() const { return begin != nullptr; }
-  inline void reset() { begin = nullptr; }
-  inline size_t size() const { return static_cast<size_t>(end - begin); }
-};
-
-}  // namespace protozero
-
-#endif  // INCLUDE_PERFETTO_PROTOZERO_CONTIGUOUS_MEMORY_RANGE_H_
-// gen_amalgamated begin header: include/perfetto/protozero/copyable_ptr.h
-/*
- * Copyright (C) 2019 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef INCLUDE_PERFETTO_PROTOZERO_COPYABLE_PTR_H_
-#define INCLUDE_PERFETTO_PROTOZERO_COPYABLE_PTR_H_
-
-#include <memory>
-
-namespace protozero {
-
-// This class is essentially a std::vector<T> of fixed size = 1.
-// It's a pointer wrapper with deep copying and deep equality comparison.
-// At all effects this wrapper behaves like the underlying T, with the exception
-// of the heap indirection.
-// Conversely to a std::unique_ptr, the pointer will be always valid, never
-// null. The problem it solves is the following: when generating C++ classes
-// from proto files, we want to keep each header hermetic (i.e. not #include
-// headers of dependent types). As such we can't directly instantiate T
-// field members but we can instead rely on pointers, so only the .cc file needs
-// to see the actual definition of T. If the generated classes were move-only we
-// could just use a unique_ptr there. But they aren't, hence this wrapper.
-// Converesely to unique_ptr, this wrapper:
-// - Default constructs the T instance in its constructor.
-// - Implements deep comparison in operator== instead of pointer comparison.
-template <typename T>
-class CopyablePtr {
- public:
-  CopyablePtr() : ptr_(new T()) {}
-  ~CopyablePtr() = default;
-
-  // Copy operators.
-  CopyablePtr(const CopyablePtr& other) : ptr_(new T(*other.ptr_)) {}
-  CopyablePtr& operator=(const CopyablePtr& other) {
-    *ptr_ = *other.ptr_;
-    return *this;
-  }
-
-  // Move operators.
-  CopyablePtr(CopyablePtr&& other) noexcept : ptr_(std::move(other.ptr_)) {
-    other.ptr_.reset(new T());
-  }
-
-  CopyablePtr& operator=(CopyablePtr&& other) {
-    ptr_ = std::move(other.ptr_);
-    other.ptr_.reset(new T());
-    return *this;
-  }
-
-  T* get() { return ptr_.get(); }
-  const T* get() const { return ptr_.get(); }
-
-  T* operator->() { return ptr_.get(); }
-  const T* operator->() const { return ptr_.get(); }
-
-  T& operator*() { return *ptr_; }
-  const T& operator*() const { return *ptr_; }
-
-  friend bool operator==(const CopyablePtr& lhs, const CopyablePtr& rhs) {
-    return *lhs == *rhs;
-  }
-
-  friend bool operator!=(const CopyablePtr& lhs, const CopyablePtr& rhs) {
-    // In theory the underlying type might have a special operator!=
-    // implementation which is not just !(x == y). Respect that.
-    return *lhs != *rhs;
-  }
-
- private:
-  std::unique_ptr<T> ptr_;
-};
-
-}  // namespace protozero
-
-#endif  // INCLUDE_PERFETTO_PROTOZERO_COPYABLE_PTR_H_
-// gen_amalgamated begin header: include/perfetto/protozero/cpp_message_obj.h
-/*
- * Copyright (C) 2019 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef INCLUDE_PERFETTO_PROTOZERO_CPP_MESSAGE_OBJ_H_
-#define INCLUDE_PERFETTO_PROTOZERO_CPP_MESSAGE_OBJ_H_
-
-#include <stdint.h>
-
-#include <string>
-#include <vector>
-
-// gen_amalgamated expanded: #include "perfetto/base/export.h"
-
-namespace protozero {
-
-// Base class for generated .gen.h classes, which are full C++ objects that
-// support both ser and deserialization (but are not zero-copy).
-// This is only used by the "cpp" targets not the "pbzero" ones.
-class PERFETTO_EXPORT CppMessageObj {
- public:
-  virtual ~CppMessageObj();
-  virtual std::string SerializeAsString() const = 0;
-  virtual std::vector<uint8_t> SerializeAsArray() const = 0;
-  virtual bool ParseFromArray(const void*, size_t) = 0;
-
-  bool ParseFromString(const std::string& str) {
-    return ParseFromArray(str.data(), str.size());
-  }
-};
-
-}  // namespace protozero
-
-#endif  // INCLUDE_PERFETTO_PROTOZERO_CPP_MESSAGE_OBJ_H_
-// gen_amalgamated begin header: include/perfetto/protozero/field.h
-/*
- * Copyright (C) 2019 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef INCLUDE_PERFETTO_PROTOZERO_FIELD_H_
-#define INCLUDE_PERFETTO_PROTOZERO_FIELD_H_
-
-#include <stdint.h>
-
-#include <string>
-#include <vector>
-
-// gen_amalgamated expanded: #include "perfetto/base/logging.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/contiguous_memory_range.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/proto_utils.h"
-
-namespace protozero {
-
-struct ConstBytes {
-  std::string ToStdString() const {
-    return std::string(reinterpret_cast<const char*>(data), size);
-  }
-
-  const uint8_t* data;
-  size_t size;
-};
-
-struct ConstChars {
-  // Allow implicit conversion to perfetto's base::StringView without depending
-  // on perfetto/base or viceversa.
-  static constexpr bool kConvertibleToStringView = true;
-  std::string ToStdString() const { return std::string(data, size); }
-
-  const char* data;
-  size_t size;
-};
-
-// A protobuf field decoded by the protozero proto decoders. It exposes
-// convenience accessors with minimal debug checks.
-// This class is used both by the iterator-based ProtoDecoder and by the
-// one-shot TypedProtoDecoder.
-// If the field is not valid the accessors consistently return zero-integers or
-// null strings.
-class Field {
- public:
-  bool valid() const { return id_ != 0; }
-  uint16_t id() const { return id_; }
-  explicit operator bool() const { return valid(); }
-
-  proto_utils::ProtoWireType type() const {
-    auto res = static_cast<proto_utils::ProtoWireType>(type_);
-    PERFETTO_DCHECK(res == proto_utils::ProtoWireType::kVarInt ||
-                    res == proto_utils::ProtoWireType::kLengthDelimited ||
-                    res == proto_utils::ProtoWireType::kFixed32 ||
-                    res == proto_utils::ProtoWireType::kFixed64);
-    return res;
-  }
-
-  bool as_bool() const {
-    PERFETTO_DCHECK(!valid() || type() == proto_utils::ProtoWireType::kVarInt);
-    return static_cast<bool>(int_value_);
-  }
-
-  uint32_t as_uint32() const {
-    PERFETTO_DCHECK(!valid() || type() == proto_utils::ProtoWireType::kVarInt ||
-                    type() == proto_utils::ProtoWireType::kFixed32);
-    return static_cast<uint32_t>(int_value_);
-  }
-
-  int32_t as_int32() const {
-    PERFETTO_DCHECK(!valid() || type() == proto_utils::ProtoWireType::kVarInt ||
-                    type() == proto_utils::ProtoWireType::kFixed32);
-    return static_cast<int32_t>(int_value_);
-  }
-
-  int32_t as_sint32() const {
-    PERFETTO_DCHECK(!valid() || type() == proto_utils::ProtoWireType::kVarInt);
-    return proto_utils::ZigZagDecode(static_cast<uint32_t>(int_value_));
-  }
-
-  uint64_t as_uint64() const {
-    PERFETTO_DCHECK(!valid() || type() == proto_utils::ProtoWireType::kVarInt ||
-                    type() == proto_utils::ProtoWireType::kFixed32 ||
-                    type() == proto_utils::ProtoWireType::kFixed64);
-    return int_value_;
-  }
-
-  int64_t as_int64() const {
-    PERFETTO_DCHECK(!valid() || type() == proto_utils::ProtoWireType::kVarInt ||
-                    type() == proto_utils::ProtoWireType::kFixed32 ||
-                    type() == proto_utils::ProtoWireType::kFixed64);
-    return static_cast<int64_t>(int_value_);
-  }
-
-  int64_t as_sint64() const {
-    PERFETTO_DCHECK(!valid() || type() == proto_utils::ProtoWireType::kVarInt);
-    return proto_utils::ZigZagDecode(static_cast<uint64_t>(int_value_));
-  }
-
-  float as_float() const {
-    PERFETTO_DCHECK(!valid() || type() == proto_utils::ProtoWireType::kFixed32);
-    float res;
-    uint32_t value32 = static_cast<uint32_t>(int_value_);
-    memcpy(&res, &value32, sizeof(res));
-    return res;
-  }
-
-  double as_double() const {
-    PERFETTO_DCHECK(!valid() || type() == proto_utils::ProtoWireType::kFixed64);
-    double res;
-    memcpy(&res, &int_value_, sizeof(res));
-    return res;
-  }
-
-  ConstChars as_string() const {
-    PERFETTO_DCHECK(!valid() ||
-                    type() == proto_utils::ProtoWireType::kLengthDelimited);
-    return ConstChars{reinterpret_cast<const char*>(data()), size_};
-  }
-
-  std::string as_std_string() const { return as_string().ToStdString(); }
-
-  ConstBytes as_bytes() const {
-    PERFETTO_DCHECK(!valid() ||
-                    type() == proto_utils::ProtoWireType::kLengthDelimited);
-    return ConstBytes{data(), size_};
-  }
-
-  const uint8_t* data() const {
-    PERFETTO_DCHECK(!valid() ||
-                    type() == proto_utils::ProtoWireType::kLengthDelimited);
-    return reinterpret_cast<const uint8_t*>(int_value_);
-  }
-
-  size_t size() const {
-    PERFETTO_DCHECK(!valid() ||
-                    type() == proto_utils::ProtoWireType::kLengthDelimited);
-    return size_;
-  }
-
-  uint64_t raw_int_value() const { return int_value_; }
-
-  void initialize(uint16_t id,
-                  uint8_t type,
-                  uint64_t int_value,
-                  uint32_t size) {
-    id_ = id;
-    type_ = type;
-    int_value_ = int_value;
-    size_ = size;
-  }
-
-  // For use with templates. This is used by RepeatedFieldIterator::operator*().
-  void get(bool* val) const { *val = as_bool(); }
-  void get(uint32_t* val) const { *val = as_uint32(); }
-  void get(int32_t* val) const { *val = as_int32(); }
-  void get(uint64_t* val) const { *val = as_uint64(); }
-  void get(int64_t* val) const { *val = as_int64(); }
-  void get(float* val) const { *val = as_float(); }
-  void get(double* val) const { *val = as_double(); }
-  void get(std::string* val) const { *val = as_std_string(); }
-  void get(ConstChars* val) const { *val = as_string(); }
-  void get(ConstBytes* val) const { *val = as_bytes(); }
-  void get_signed(int32_t* val) const { *val = as_sint32(); }
-  void get_signed(int64_t* val) const { *val = as_sint64(); }
-
-  // For enum types.
-  template <typename T,
-            typename = typename std::enable_if<std::is_enum<T>::value, T>::type>
-  void get(T* val) const {
-    *val = static_cast<T>(as_int32());
-  }
-
-  // Serializes the field back into a proto-encoded byte stream and appends it
-  // to |dst|. |dst| is resized accordingly.
-  void SerializeAndAppendTo(std::string* dst) const;
-
-  // Serializes the field back into a proto-encoded byte stream and appends it
-  // to |dst|. |dst| is resized accordingly.
-  void SerializeAndAppendTo(std::vector<uint8_t>* dst) const;
-
- private:
-  template <typename Container>
-  void SerializeAndAppendToInternal(Container* dst) const;
-
-  // Fields are deliberately not initialized to keep the class trivially
-  // constructible. It makes a large perf difference for ProtoDecoder.
-
-  uint64_t int_value_;  // In kLengthDelimited this contains the data() addr.
-  uint32_t size_;       // Only valid when when type == kLengthDelimited.
-  uint16_t id_;         // Proto field ordinal.
-  uint8_t type_;        // proto_utils::ProtoWireType.
-};
-
-// The Field struct is used in a lot of perf-sensitive contexts.
-static_assert(sizeof(Field) == 16, "Field struct too big");
-
-}  // namespace protozero
-
-#endif  // INCLUDE_PERFETTO_PROTOZERO_FIELD_H_
-// gen_amalgamated begin header: include/perfetto/protozero/field_writer.h
-/*
- * Copyright (C) 2021 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-// gen_amalgamated expanded: #include "perfetto/protozero/message.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/proto_utils.h"
-
-#ifndef INCLUDE_PERFETTO_PROTOZERO_FIELD_WRITER_H_
-#define INCLUDE_PERFETTO_PROTOZERO_FIELD_WRITER_H_
-
-namespace protozero {
-namespace internal {
-
-template <proto_utils::ProtoSchemaType proto_schema_type>
-struct FieldWriter {
-  static_assert(proto_schema_type != proto_utils::ProtoSchemaType::kMessage,
-                "FieldWriter can't be used with nested messages");
-};
-
-template <>
-struct FieldWriter<proto_utils::ProtoSchemaType::kDouble> {
-  inline static void Append(Message& message, uint32_t field_id, double value) {
-    message.AppendFixed(field_id, value);
-  }
-};
-
-template <>
-struct FieldWriter<proto_utils::ProtoSchemaType::kFloat> {
-  inline static void Append(Message& message, uint32_t field_id, float value) {
-    message.AppendFixed(field_id, value);
-  }
-};
-
-template <>
-struct FieldWriter<proto_utils::ProtoSchemaType::kBool> {
-  inline static void Append(Message& message, uint32_t field_id, bool value) {
-    message.AppendTinyVarInt(field_id, value);
-  }
-};
-
-template <>
-struct FieldWriter<proto_utils::ProtoSchemaType::kInt32> {
-  inline static void Append(Message& message,
-                            uint32_t field_id,
-                            int32_t value) {
-    message.AppendVarInt(field_id, value);
-  }
-};
-
-template <>
-struct FieldWriter<proto_utils::ProtoSchemaType::kInt64> {
-  inline static void Append(Message& message,
-                            uint32_t field_id,
-                            int64_t value) {
-    message.AppendVarInt(field_id, value);
-  }
-};
-
-template <>
-struct FieldWriter<proto_utils::ProtoSchemaType::kUint32> {
-  inline static void Append(Message& message,
-                            uint32_t field_id,
-                            uint32_t value) {
-    message.AppendVarInt(field_id, value);
-  }
-};
-
-template <>
-struct FieldWriter<proto_utils::ProtoSchemaType::kUint64> {
-  inline static void Append(Message& message,
-                            uint32_t field_id,
-                            uint64_t value) {
-    message.AppendVarInt(field_id, value);
-  }
-};
-
-template <>
-struct FieldWriter<proto_utils::ProtoSchemaType::kSint32> {
-  inline static void Append(Message& message,
-                            uint32_t field_id,
-                            int32_t value) {
-    message.AppendSignedVarInt(field_id, value);
-  }
-};
-
-template <>
-struct FieldWriter<proto_utils::ProtoSchemaType::kSint64> {
-  inline static void Append(Message& message,
-                            uint32_t field_id,
-                            int64_t value) {
-    message.AppendSignedVarInt(field_id, value);
-  }
-};
-
-template <>
-struct FieldWriter<proto_utils::ProtoSchemaType::kFixed32> {
-  inline static void Append(Message& message,
-                            uint32_t field_id,
-                            uint32_t value) {
-    message.AppendFixed(field_id, value);
-  }
-};
-
-template <>
-struct FieldWriter<proto_utils::ProtoSchemaType::kFixed64> {
-  inline static void Append(Message& message,
-                            uint32_t field_id,
-                            uint64_t value) {
-    message.AppendFixed(field_id, value);
-  }
-};
-
-template <>
-struct FieldWriter<proto_utils::ProtoSchemaType::kSfixed32> {
-  inline static void Append(Message& message,
-                            uint32_t field_id,
-                            int32_t value) {
-    message.AppendFixed(field_id, value);
-  }
-};
-
-template <>
-struct FieldWriter<proto_utils::ProtoSchemaType::kSfixed64> {
-  inline static void Append(Message& message,
-                            uint32_t field_id,
-                            int64_t value) {
-    message.AppendFixed(field_id, value);
-  }
-};
-
-template <>
-struct FieldWriter<proto_utils::ProtoSchemaType::kEnum> {
-  template <typename EnumType>
-  inline static void Append(Message& message,
-                            uint32_t field_id,
-                            EnumType value) {
-    message.AppendVarInt(field_id, value);
-  }
-};
-
-template <>
-struct FieldWriter<proto_utils::ProtoSchemaType::kString> {
-  inline static void Append(Message& message,
-                            uint32_t field_id,
-                            const char* data,
-                            size_t size) {
-    message.AppendBytes(field_id, data, size);
-  }
-
-  inline static void Append(Message& message,
-                            uint32_t field_id,
-                            const std::string& value) {
-    message.AppendBytes(field_id, value.data(), value.size());
-  }
-};
-
-template <>
-struct FieldWriter<proto_utils::ProtoSchemaType::kBytes> {
-  inline static void Append(Message& message,
-                            uint32_t field_id,
-                            const uint8_t* data,
-                            size_t size) {
-    message.AppendBytes(field_id, data, size);
-  }
-
-  inline static void Append(Message& message,
-                            uint32_t field_id,
-                            const std::string& value) {
-    message.AppendBytes(field_id, value.data(), value.size());
-  }
-};
-
-}  // namespace internal
-}  // namespace protozero
-
-#endif  // INCLUDE_PERFETTO_PROTOZERO_FIELD_WRITER_H_
-// gen_amalgamated begin header: include/perfetto/protozero/message.h
-/*
- * Copyright (C) 2017 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef INCLUDE_PERFETTO_PROTOZERO_MESSAGE_H_
-#define INCLUDE_PERFETTO_PROTOZERO_MESSAGE_H_
-
-#include <assert.h>
-#include <stdint.h>
-#include <string.h>
-
-#include <string>
-#include <type_traits>
-
-// gen_amalgamated expanded: #include "perfetto/base/export.h"
-// gen_amalgamated expanded: #include "perfetto/base/logging.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/contiguous_memory_range.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/proto_utils.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/scattered_stream_writer.h"
-
-namespace perfetto {
-namespace shm_fuzz {
-class FakeProducer;
-}  // namespace shm_fuzz
-}  // namespace perfetto
-
-namespace protozero {
-
-class MessageArena;
-class MessageHandleBase;
-
-// Base class extended by the proto C++ stubs generated by the ProtoZero
-// compiler. This class provides the minimal runtime required to support
-// append-only operations and is designed for performance. None of the methods
-// require any dynamic memory allocation, unless more than 16 nested messages
-// are created via BeginNestedMessage() calls.
-class PERFETTO_EXPORT Message {
- public:
-  friend class MessageHandleBase;
-
-  // The ctor is deliberately a no-op to avoid forwarding args from all
-  // subclasses. The real initialization is performed by Reset().
-  // Nested messages are allocated via placement new by MessageArena and
-  // implictly destroyed when the RootMessage's arena goes away. This is
-  // fine as long as all the fields are PODs, which is checked by the
-  // static_assert()s in the Reset() method.
-  Message() = default;
-
-  // Clears up the state, allowing the message to be reused as a fresh one.
-  void Reset(ScatteredStreamWriter*, MessageArena*);
-
-  // Commits all the changes to the buffer (backfills the size field of this and
-  // all nested messages) and seals the message. Returns the size of the message
-  // (and all nested sub-messages), without taking into account any chunking.
-  // Finalize is idempotent and can be called several times w/o side effects.
-  uint32_t Finalize();
-
-  // Optional. If is_valid() == true, the corresponding memory region (its
-  // length == proto_utils::kMessageLengthFieldSize) is backfilled with the size
-  // of this message (minus |size_already_written| below). This is the mechanism
-  // used by messages to backfill their corresponding size field in the parent
-  // message.
-  uint8_t* size_field() const { return size_field_; }
-  void set_size_field(uint8_t* size_field) { size_field_ = size_field; }
-
-  // This is to deal with case of backfilling the size of a root (non-nested)
-  // message which is split into multiple chunks. Upon finalization only the
-  // partial size that lies in the last chunk has to be backfilled.
-  void inc_size_already_written(uint32_t sz) { size_already_written_ += sz; }
-
-  Message* nested_message() { return nested_message_; }
-
-  bool is_finalized() const { return finalized_; }
-
-#if PERFETTO_DCHECK_IS_ON()
-  void set_handle(MessageHandleBase* handle) { handle_ = handle; }
-#endif
-
-  // Proto types: uint64, uint32, int64, int32, bool, enum.
-  template <typename T>
-  void AppendVarInt(uint32_t field_id, T value) {
-    if (nested_message_)
-      EndNestedMessage();
-
-    uint8_t buffer[proto_utils::kMaxSimpleFieldEncodedSize];
-    uint8_t* pos = buffer;
-
-    pos = proto_utils::WriteVarInt(proto_utils::MakeTagVarInt(field_id), pos);
-    // WriteVarInt encodes signed values in two's complement form.
-    pos = proto_utils::WriteVarInt(value, pos);
-    WriteToStream(buffer, pos);
-  }
-
-  // Proto types: sint64, sint32.
-  template <typename T>
-  void AppendSignedVarInt(uint32_t field_id, T value) {
-    AppendVarInt(field_id, proto_utils::ZigZagEncode(value));
-  }
-
-  // Proto types: bool, enum (small).
-  // Faster version of AppendVarInt for tiny numbers.
-  void AppendTinyVarInt(uint32_t field_id, int32_t value) {
-    PERFETTO_DCHECK(0 <= value && value < 0x80);
-    if (nested_message_)
-      EndNestedMessage();
-
-    uint8_t buffer[proto_utils::kMaxSimpleFieldEncodedSize];
-    uint8_t* pos = buffer;
-    // MakeTagVarInt gets super optimized here for constexpr.
-    pos = proto_utils::WriteVarInt(proto_utils::MakeTagVarInt(field_id), pos);
-    *pos++ = static_cast<uint8_t>(value);
-    WriteToStream(buffer, pos);
-  }
-
-  // Proto types: fixed64, sfixed64, fixed32, sfixed32, double, float.
-  template <typename T>
-  void AppendFixed(uint32_t field_id, T value) {
-    if (nested_message_)
-      EndNestedMessage();
-
-    uint8_t buffer[proto_utils::kMaxSimpleFieldEncodedSize];
-    uint8_t* pos = buffer;
-
-    pos = proto_utils::WriteVarInt(proto_utils::MakeTagFixed<T>(field_id), pos);
-    memcpy(pos, &value, sizeof(T));
-    pos += sizeof(T);
-    // TODO: Optimize memcpy performance, see http://crbug.com/624311 .
-    WriteToStream(buffer, pos);
-  }
-
-  void AppendString(uint32_t field_id, const char* str);
-
-  void AppendString(uint32_t field_id, const std::string& str) {
-    AppendBytes(field_id, str.data(), str.size());
-  }
-
-  void AppendBytes(uint32_t field_id, const void* value, size_t size);
-
-  // Append raw bytes for a field, using the supplied |ranges| to
-  // copy from |num_ranges| individual buffers.
-  size_t AppendScatteredBytes(uint32_t field_id,
-                              ContiguousMemoryRange* ranges,
-                              size_t num_ranges);
-
-  // Begins a nested message. The returned object is owned by the MessageArena
-  // of the root message. The nested message ends either when Finalize() is
-  // called or when any other Append* method is called in the parent class.
-  // The template argument T is supposed to be a stub class auto generated from
-  // a .proto, hence a subclass of Message.
-  template <class T>
-  T* BeginNestedMessage(uint32_t field_id) {
-    // This is to prevent subclasses (which should be autogenerated, though), to
-    // introduce extra state fields (which wouldn't be initialized by Reset()).
-    static_assert(std::is_base_of<Message, T>::value,
-                  "T must be a subclass of Message");
-    static_assert(sizeof(T) == sizeof(Message),
-                  "Message subclasses cannot introduce extra state.");
-    return static_cast<T*>(BeginNestedMessageInternal(field_id));
-  }
-
-  // Gives read-only access to the underlying stream_writer. This is used only
-  // by few internals to query the state of the underlying buffer. It is almost
-  // always a bad idea to poke at the stream_writer() internals.
-  const ScatteredStreamWriter* stream_writer() const { return stream_writer_; }
-
-  // Appends some raw bytes to the message. The use-case for this is preserving
-  // unknown fields in the decode -> re-encode path of xxx.gen.cc classes
-  // generated by the cppgen_plugin.cc.
-  // The caller needs to guarantee that the appended data is properly
-  // proto-encoded and each field has a proto preamble.
-  void AppendRawProtoBytes(const void* data, size_t size) {
-    const uint8_t* src = reinterpret_cast<const uint8_t*>(data);
-    WriteToStream(src, src + size);
-  }
-
- private:
-  Message(const Message&) = delete;
-  Message& operator=(const Message&) = delete;
-
-  Message* BeginNestedMessageInternal(uint32_t field_id);
-
-  // Called by Finalize and Append* methods.
-  void EndNestedMessage();
-
-  void WriteToStream(const uint8_t* src_begin, const uint8_t* src_end) {
-    PERFETTO_DCHECK(!finalized_);
-    PERFETTO_DCHECK(src_begin <= src_end);
-    const uint32_t size = static_cast<uint32_t>(src_end - src_begin);
-    stream_writer_->WriteBytes(src_begin, size);
-    size_ += size;
-  }
-
-  // Only POD fields are allowed. This class's dtor is never called.
-  // See the comment on the static_assert in the corresponding .cc file.
-
-  // The stream writer interface used for the serialization.
-  ScatteredStreamWriter* stream_writer_;
-
-  // The storage used to allocate nested Message objects.
-  // This is owned by RootMessage<T>.
-  MessageArena* arena_;
-
-  // Pointer to the last child message created through BeginNestedMessage(), if
-  // any, nullptr otherwise. There is no need to keep track of more than one
-  // message per nesting level as the proto-zero API contract mandates that
-  // nested fields can be filled only in a stacked fashion. In other words,
-  // nested messages are finalized and sealed when any other field is set in the
-  // parent message (or the parent message itself is finalized) and cannot be
-  // accessed anymore afterwards.
-  Message* nested_message_;
-
-  // [optional] Pointer to a non-aligned pre-reserved var-int slot of
-  // kMessageLengthFieldSize bytes. When set, the Finalize() method will write
-  // the size of proto-encoded message in the pointed memory region.
-  uint8_t* size_field_;
-
-  // Keeps track of the size of the current message.
-  uint32_t size_;
-
-  // See comment for inc_size_already_written().
-  uint32_t size_already_written_;
-
-  // When true, no more changes to the message are allowed. This is to DCHECK
-  // attempts of writing to a message which has been Finalize()-d.
-  bool finalized_;
-
-#if PERFETTO_DCHECK_IS_ON()
-  // Current generation of message. Incremented on Reset.
-  // Used to detect stale handles.
-  uint32_t generation_;
-
-  MessageHandleBase* handle_;
-#endif
-};
-
-}  // namespace protozero
-
-#endif  // INCLUDE_PERFETTO_PROTOZERO_MESSAGE_H_
-// gen_amalgamated begin header: include/perfetto/protozero/message_arena.h
-/*
- * Copyright (C) 2020 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef INCLUDE_PERFETTO_PROTOZERO_MESSAGE_ARENA_H_
-#define INCLUDE_PERFETTO_PROTOZERO_MESSAGE_ARENA_H_
-
-#include <stdint.h>
-
-#include <list>
-#include <type_traits>
-
-// gen_amalgamated expanded: #include "perfetto/base/export.h"
-// gen_amalgamated expanded: #include "perfetto/base/logging.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/message.h"
-
-namespace protozero {
-
-class Message;
-
-// Object allocator for fixed-sized protozero::Message objects.
-// It's a simple bump-pointer allocator which leverages the stack-alike
-// usage pattern of protozero nested messages. It avoids hitting the system
-// allocator in most cases, by reusing the same block, and falls back on
-// allocating new blocks only when using deeply nested messages (which are
-// extremely rare).
-// This is used by RootMessage<T> to handle the storage for root-level messages.
-class PERFETTO_EXPORT MessageArena {
- public:
-  MessageArena();
-  ~MessageArena();
-
-  // Strictly no copies or moves as this is used to hand out pointers.
-  MessageArena(const MessageArena&) = delete;
-  MessageArena& operator=(const MessageArena&) = delete;
-  MessageArena(MessageArena&&) = delete;
-  MessageArena& operator=(MessageArena&&) = delete;
-
-  // Allocates a new Message object.
-  Message* NewMessage();
-
-  // Deletes the last message allocated. The |msg| argument is used only for
-  // DCHECKs, it MUST be the pointer obtained by the last NewMessage() call.
-  void DeleteLastMessage(Message* msg) {
-    PERFETTO_DCHECK(!blocks_.empty() && blocks_.back().entries > 0);
-    PERFETTO_DCHECK(&blocks_.back().storage[blocks_.back().entries - 1] ==
-                    static_cast<void*>(msg));
-    DeleteLastMessageInternal();
-  }
-
-  // Resets the state of the arena, clearing up all but one block. This is used
-  // to avoid leaking outstanding unfinished sub-messages while recycling the
-  // RootMessage object (this is extremely rare due to the RAII scoped handles
-  // but could happen if some client does some overly clever std::move() trick).
-  void Reset() {
-    PERFETTO_DCHECK(!blocks_.empty());
-    blocks_.resize(1);
-    auto& block = blocks_.back();
-    block.entries = 0;
-    PERFETTO_ASAN_POISON(block.storage, sizeof(block.storage));
-  }
-
- private:
-  void DeleteLastMessageInternal();
-
-  struct Block {
-    static constexpr size_t kCapacity = 16;
-
-    Block() { PERFETTO_ASAN_POISON(storage, sizeof(storage)); }
-
-    std::aligned_storage<sizeof(Message), alignof(Message)>::type
-        storage[kCapacity];
-    uint32_t entries = 0;  // # Message entries used (<= kCapacity).
-  };
-
-  // blocks are used to hand out pointers and must not be moved. Hence why
-  // std::list rather than std::vector.
-  std::list<Block> blocks_;
-};
-
-}  // namespace protozero
-
-#endif  // INCLUDE_PERFETTO_PROTOZERO_MESSAGE_ARENA_H_
-// gen_amalgamated begin header: include/perfetto/protozero/message_handle.h
-/*
- * Copyright (C) 2017 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef INCLUDE_PERFETTO_PROTOZERO_MESSAGE_HANDLE_H_
-#define INCLUDE_PERFETTO_PROTOZERO_MESSAGE_HANDLE_H_
-
-#include <functional>
-
-// gen_amalgamated expanded: #include "perfetto/base/export.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/message.h"
-
-namespace protozero {
-
-class Message;
-
-// MessageHandle allows to decouple the lifetime of a proto message
-// from the underlying storage. It gives the following guarantees:
-// - The underlying message is finalized (if still alive) if the handle goes
-//   out of scope.
-// - In Debug / DCHECK_ALWAYS_ON builds, the handle becomes null once the
-//   message is finalized. This is to enforce the append-only API. For instance
-//   when adding two repeated messages, the addition of the 2nd one forces
-//   the finalization of the first.
-// Think about this as a WeakPtr<Message> which calls
-// Message::Finalize() when going out of scope.
-
-class PERFETTO_EXPORT MessageHandleBase {
- public:
-  ~MessageHandleBase();
-
-  // Move-only type.
-  MessageHandleBase(MessageHandleBase&&) noexcept;
-  MessageHandleBase& operator=(MessageHandleBase&&);
-  explicit operator bool() const {
-#if PERFETTO_DCHECK_IS_ON()
-    PERFETTO_DCHECK(!message_ || generation_ == message_->generation_);
-#endif
-    return !!message_;
-  }
-
- protected:
-  explicit MessageHandleBase(Message* = nullptr);
-  Message* operator->() const {
-#if PERFETTO_DCHECK_IS_ON()
-    PERFETTO_DCHECK(!message_ || generation_ == message_->generation_);
-#endif
-    return message_;
-  }
-  Message& operator*() const { return *(operator->()); }
-
- private:
-  friend class Message;
-  MessageHandleBase(const MessageHandleBase&) = delete;
-  MessageHandleBase& operator=(const MessageHandleBase&) = delete;
-
-  void reset_message() {
-    // This is called by Message::Finalize().
-    PERFETTO_DCHECK(message_->is_finalized());
-    message_ = nullptr;
-  }
-
-  void Move(MessageHandleBase&&);
-
-  void FinalizeMessage() { message_->Finalize(); }
-
-  Message* message_;
-#if PERFETTO_DCHECK_IS_ON()
-  uint32_t generation_;
-#endif
-};
-
-template <typename T>
-class MessageHandle : public MessageHandleBase {
- public:
-  MessageHandle() : MessageHandle(nullptr) {}
-  explicit MessageHandle(T* message) : MessageHandleBase(message) {}
-
-  explicit operator bool() const { return MessageHandleBase::operator bool(); }
-
-  T& operator*() const {
-    return static_cast<T&>(MessageHandleBase::operator*());
-  }
-
-  T* operator->() const {
-    return static_cast<T*>(MessageHandleBase::operator->());
-  }
-
-  T* get() const { return static_cast<T*>(MessageHandleBase::operator->()); }
-};
-
-}  // namespace protozero
-
-#endif  // INCLUDE_PERFETTO_PROTOZERO_MESSAGE_HANDLE_H_
-// gen_amalgamated begin header: include/perfetto/protozero/packed_repeated_fields.h
-/*
- * Copyright (C) 2019 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef INCLUDE_PERFETTO_PROTOZERO_PACKED_REPEATED_FIELDS_H_
-#define INCLUDE_PERFETTO_PROTOZERO_PACKED_REPEATED_FIELDS_H_
-
-#include <stdint.h>
-
-#include <array>
-#include <memory>
-#include <type_traits>
-
-// gen_amalgamated expanded: #include "perfetto/base/logging.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/proto_utils.h"
-
-namespace protozero {
-
-// This file contains classes used when encoding packed repeated fields.
-// To encode such a field, the caller is first expected to accumulate all of the
-// values in one of the following types (depending on the wire type of the
-// individual elements), defined below:
-// * protozero::PackedVarInt
-// * protozero::PackedFixedSizeInt</*element_type=*/ uint32_t>
-// Then that buffer is passed to the protozero-generated setters as an argument.
-// After calling the setter, the buffer can be destroyed.
-//
-// An example of encoding a packed field:
-//   protozero::HeapBuffered<protozero::Message> msg;
-//   protozero::PackedVarInt buf;
-//   buf.Append(42);
-//   buf.Append(-1);
-//   msg->set_fieldname(buf);
-//   msg.SerializeAsString();
-
-class PackedBufferBase {
- public:
-  PackedBufferBase() { Reset(); }
-
-  // Copy or move is disabled due to pointers to stack addresses.
-  PackedBufferBase(const PackedBufferBase&) = delete;
-  PackedBufferBase(PackedBufferBase&&) = delete;
-  PackedBufferBase& operator=(const PackedBufferBase&) = delete;
-  PackedBufferBase& operator=(PackedBufferBase&&) = delete;
-
-  void Reset();
-
-  const uint8_t* data() const { return storage_begin_; }
-
-  size_t size() const {
-    return static_cast<size_t>(write_ptr_ - storage_begin_);
-  }
-
- protected:
-  void GrowIfNeeded() {
-    PERFETTO_DCHECK(write_ptr_ >= storage_begin_ && write_ptr_ <= storage_end_);
-    if (PERFETTO_UNLIKELY(write_ptr_ + kMaxElementSize > storage_end_)) {
-      GrowSlowpath();
-    }
-  }
-
-  void GrowSlowpath();
-
-  // max(uint64_t varint encoding, biggest fixed type (uint64)).
-  static constexpr size_t kMaxElementSize = 10;
-
-  // So sizeof(this) == 8k.
-  static constexpr size_t kOnStackStorageSize = 8192 - 32;
-
-  uint8_t* storage_begin_;
-  uint8_t* storage_end_;
-  uint8_t* write_ptr_;
-  std::unique_ptr<uint8_t[]> heap_buf_;
-  alignas(uint64_t) uint8_t stack_buf_[kOnStackStorageSize];
-};
-
-class PackedVarInt : public PackedBufferBase {
- public:
-  template <typename T>
-  void Append(T value) {
-    GrowIfNeeded();
-    write_ptr_ = proto_utils::WriteVarInt(value, write_ptr_);
-  }
-};
-
-template <typename T /* e.g. uint32_t for Fixed32 */>
-class PackedFixedSizeInt : public PackedBufferBase {
- public:
-  void Append(T value) {
-    static_assert(sizeof(T) == 4 || sizeof(T) == 8,
-                  "PackedFixedSizeInt should be used only with 32/64-bit ints");
-    static_assert(sizeof(T) <= kMaxElementSize,
-                  "kMaxElementSize needs to be updated");
-    GrowIfNeeded();
-    PERFETTO_DCHECK(reinterpret_cast<size_t>(write_ptr_) % alignof(T) == 0);
-    memcpy(reinterpret_cast<T*>(write_ptr_), &value, sizeof(T));
-    write_ptr_ += sizeof(T);
-  }
-};
-
-}  // namespace protozero
-
-#endif  // INCLUDE_PERFETTO_PROTOZERO_PACKED_REPEATED_FIELDS_H_
-// gen_amalgamated begin header: include/perfetto/protozero/proto_decoder.h
-/*
- * Copyright (C) 2018 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef INCLUDE_PERFETTO_PROTOZERO_PROTO_DECODER_H_
-#define INCLUDE_PERFETTO_PROTOZERO_PROTO_DECODER_H_
-
-#include <stdint.h>
-#include <array>
-#include <memory>
-#include <vector>
-
-// gen_amalgamated expanded: #include "perfetto/base/compiler.h"
-// gen_amalgamated expanded: #include "perfetto/base/logging.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/field.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/proto_utils.h"
-
-namespace protozero {
-
-// A generic protobuf decoder. Doesn't require any knowledge about the proto
-// schema. It tokenizes fields, retrieves their ID and type and exposes
-// accessors to retrieve its values.
-// It does NOT recurse in nested submessages, instead it just computes their
-// boundaries, recursion is left to the caller.
-// This class is designed to be used in perf-sensitive contexts. It does not
-// allocate and does not perform any proto semantic checks (e.g. repeated /
-// required / optional). It's supposedly safe wrt out-of-bounds memory accesses
-// (see proto_decoder_fuzzer.cc).
-// This class serves also as a building block for TypedProtoDecoder, used when
-// the schema is known at compile time.
-class PERFETTO_EXPORT ProtoDecoder {
- public:
-  // Creates a ProtoDecoder using the given |buffer| with size |length| bytes.
-  ProtoDecoder(const void* buffer, size_t length)
-      : begin_(reinterpret_cast<const uint8_t*>(buffer)),
-        end_(begin_ + length),
-        read_ptr_(begin_) {}
-  ProtoDecoder(const std::string& str) : ProtoDecoder(str.data(), str.size()) {}
-  ProtoDecoder(const ConstBytes& cb) : ProtoDecoder(cb.data, cb.size) {}
-
-  // Reads the next field from the buffer and advances the read cursor. If a
-  // full field cannot be read, the returned Field will be invalid (i.e.
-  // field.valid() == false).
-  Field ReadField();
-
-  // Finds the first field with the given id. Doesn't affect the read cursor.
-  Field FindField(uint32_t field_id);
-
-  // Resets the read cursor to the start of the buffer.
-  void Reset() { read_ptr_ = begin_; }
-
-  // Resets the read cursor to the given position (must be within the buffer).
-  void Reset(const uint8_t* pos) {
-    PERFETTO_DCHECK(pos >= begin_ && pos < end_);
-    read_ptr_ = pos;
-  }
-
-  // Returns the position of read cursor, relative to the start of the buffer.
-  size_t read_offset() const { return static_cast<size_t>(read_ptr_ - begin_); }
-
-  size_t bytes_left() const {
-    PERFETTO_DCHECK(read_ptr_ <= end_);
-    return static_cast<size_t>(end_ - read_ptr_);
-  }
-
-  const uint8_t* begin() const { return begin_; }
-  const uint8_t* end() const { return end_; }
-
- protected:
-  const uint8_t* const begin_;
-  const uint8_t* const end_;
-  const uint8_t* read_ptr_ = nullptr;
-};
-
-// An iterator-like class used to iterate through repeated fields. Used by
-// TypedProtoDecoder. The iteration sequence is a bit counter-intuitive due to
-// the fact that fields_[field_id] holds the *last* value of the field, not the
-// first, but the remaining storage holds repeated fields in FIFO order.
-// Assume that we push the 10,11,12 into a repeated field with ID=1.
-//
-// Decoder memory layout:  [  fields storage  ] [ repeated fields storage ]
-// 1st iteration:           10
-// 2nd iteration:           11                   10
-// 3rd iteration:           12                   10 11
-//
-// We start the iteration @ fields_[num_fields], which is the start of the
-// repeated fields storage, proceed until the end and lastly jump @ fields_[id].
-template <typename T>
-class RepeatedFieldIterator {
- public:
-  RepeatedFieldIterator(uint32_t field_id,
-                        const Field* begin,
-                        const Field* end,
-                        const Field* last)
-      : field_id_(field_id), iter_(begin), end_(end), last_(last) {
-    FindNextMatchingId();
-  }
-
-  // Constructs an invalid iterator.
-  RepeatedFieldIterator()
-      : field_id_(0u), iter_(nullptr), end_(nullptr), last_(nullptr) {}
-
-  explicit operator bool() const { return iter_ != end_; }
-  const Field& field() const { return *iter_; }
-
-  T operator*() const {
-    T val{};
-    iter_->get(&val);
-    return val;
-  }
-  const Field* operator->() const { return iter_; }
-
-  RepeatedFieldIterator& operator++() {
-    PERFETTO_DCHECK(iter_ != end_);
-    if (iter_ == last_) {
-      iter_ = end_;
-      return *this;
-    }
-    ++iter_;
-    FindNextMatchingId();
-    return *this;
-  }
-
-  RepeatedFieldIterator operator++(int) {
-    PERFETTO_DCHECK(iter_ != end_);
-    RepeatedFieldIterator it(*this);
-    ++(*this);
-    return it;
-  }
-
- private:
-  void FindNextMatchingId() {
-    PERFETTO_DCHECK(iter_ != last_);
-    for (; iter_ != end_; ++iter_) {
-      if (iter_->id() == field_id_)
-        return;
-    }
-    iter_ = last_->valid() ? last_ : end_;
-  }
-
-  uint32_t field_id_;
-
-  // Initially points to the beginning of the repeated field storage, then is
-  // incremented as we call operator++().
-  const Field* iter_;
-
-  // Always points to fields_[size_], i.e. past the end of the storage.
-  const Field* end_;
-
-  // Always points to fields_[field_id].
-  const Field* last_;
-};
-
-// As RepeatedFieldIterator, but allows iterating over a packed repeated field
-// (which will be initially stored as a single length-delimited field).
-// See |GetPackedRepeatedField| for details.
-//
-// Assumes little endianness, and that the input buffers are well formed -
-// containing an exact multiple of encoded elements.
-template <proto_utils::ProtoWireType wire_type, typename CppType>
-class PackedRepeatedFieldIterator {
- public:
-  PackedRepeatedFieldIterator(const uint8_t* data_begin,
-                              size_t size,
-                              bool* parse_error_ptr)
-      : data_end_(data_begin ? data_begin + size : nullptr),
-        read_ptr_(data_begin),
-        parse_error_(parse_error_ptr) {
-    using proto_utils::ProtoWireType;
-    static_assert(wire_type == ProtoWireType::kVarInt ||
-                      wire_type == ProtoWireType::kFixed32 ||
-                      wire_type == ProtoWireType::kFixed64,
-                  "invalid type");
-
-    PERFETTO_DCHECK(parse_error_ptr);
-
-    // Either the field is unset (and there are no data pointer), or the field
-    // is set with a zero length payload. Mark the iterator as invalid in both
-    // cases.
-    if (size == 0) {
-      curr_value_valid_ = false;
-      return;
-    }
-
-    if ((wire_type == ProtoWireType::kFixed32 && (size % 4) != 0) ||
-        (wire_type == ProtoWireType::kFixed64 && (size % 8) != 0)) {
-      *parse_error_ = true;
-      curr_value_valid_ = false;
-      return;
-    }
-
-    ++(*this);
-  }
-
-  const CppType operator*() const { return curr_value_; }
-  explicit operator bool() const { return curr_value_valid_; }
-
-  PackedRepeatedFieldIterator& operator++() {
-    using proto_utils::ProtoWireType;
-
-    if (PERFETTO_UNLIKELY(!curr_value_valid_))
-      return *this;
-
-    if (PERFETTO_UNLIKELY(read_ptr_ == data_end_)) {
-      curr_value_valid_ = false;
-      return *this;
-    }
-
-    if (wire_type == ProtoWireType::kVarInt) {
-      uint64_t new_value = 0;
-      const uint8_t* new_pos =
-          proto_utils::ParseVarInt(read_ptr_, data_end_, &new_value);
-
-      if (PERFETTO_UNLIKELY(new_pos == read_ptr_)) {
-        // Failed to decode the varint (probably incomplete buffer).
-        *parse_error_ = true;
-        curr_value_valid_ = false;
-      } else {
-        read_ptr_ = new_pos;
-        curr_value_ = static_cast<CppType>(new_value);
-      }
-    } else {  // kFixed32 or kFixed64
-      constexpr size_t kStep = wire_type == ProtoWireType::kFixed32 ? 4 : 8;
-
-      // NB: the raw buffer is not guaranteed to be aligned, so neither are
-      // these copies.
-      memcpy(&curr_value_, read_ptr_, sizeof(CppType));
-      read_ptr_ += kStep;
-    }
-
-    return *this;
-  }
-
-  PackedRepeatedFieldIterator operator++(int) {
-    PackedRepeatedFieldIterator it(*this);
-    ++(*this);
-    return it;
-  }
-
- private:
-  // Might be null if the backing proto field isn't set.
-  const uint8_t* const data_end_;
-
-  // The iterator looks ahead by an element, so |curr_value| holds the value
-  // to be returned when the caller dereferences the iterator, and |read_ptr_|
-  // points at the start of the next element to be decoded.
-  // |read_ptr_| might be null if the backing proto field isn't set.
-  const uint8_t* read_ptr_;
-  CppType curr_value_ = 0;
-
-  // Set to false once we've exhausted the iterator, or encountered an error.
-  bool curr_value_valid_ = true;
-
-  // Where to set parsing errors, supplied by the caller.
-  bool* const parse_error_;
-};
-
-// This decoder loads all fields upfront, without recursing in nested messages.
-// It is used as a base class for typed decoders generated by the pbzero plugin.
-// The split between TypedProtoDecoderBase and TypedProtoDecoder<> is to have
-// unique definition of functions like ParseAllFields() and ExpandHeapStorage().
-// The storage (either on-stack or on-heap) for this class is organized as
-// follows:
-// |-------------------------- fields_ ----------------------|
-// [ field 0 (invalid) ] [ fields 1 .. N ] [ repeated fields ]
-//                                        ^                  ^
-//                                        num_fields_        size_
-class PERFETTO_EXPORT TypedProtoDecoderBase : public ProtoDecoder {
- public:
-  // If the field |id| is known at compile time, prefer the templated
-  // specialization at<kFieldNumber>().
-  const Field& Get(uint32_t id) const {
-    return PERFETTO_LIKELY(id < num_fields_) ? fields_[id] : fields_[0];
-  }
-
-  // Returns an object that allows to iterate over all instances of a repeated
-  // field given its id. Example usage:
-  //   for (auto it = decoder.GetRepeated<int32_t>(N); it; ++it) { ... }
-  template <typename T>
-  RepeatedFieldIterator<T> GetRepeated(uint32_t field_id) const {
-    return RepeatedFieldIterator<T>(field_id, &fields_[num_fields_],
-                                    &fields_[size_], &fields_[field_id]);
-  }
-
-  // Returns an objects that allows to iterate over all entries of a packed
-  // repeated field given its id and type. The |wire_type| is necessary for
-  // decoding the packed field, the |cpp_type| is for convenience & stronger
-  // typing.
-  //
-  // The caller must also supply a pointer to a bool that is set to true if the
-  // packed buffer is found to be malformed while iterating (so you need to
-  // exhaust the iterator if you want to check the full extent of the buffer).
-  //
-  // Note that unlike standard protobuf parsers, protozero does not allow
-  // treating of packed repeated fields as non-packed and vice-versa (therefore
-  // not making the packed option forwards and backwards compatible). So
-  // the caller needs to use the right accessor for correct results.
-  template <proto_utils::ProtoWireType wire_type, typename cpp_type>
-  PackedRepeatedFieldIterator<wire_type, cpp_type> GetPackedRepeated(
-      uint32_t field_id,
-      bool* parse_error_location) const {
-    const Field& field = Get(field_id);
-    if (field.valid()) {
-      return PackedRepeatedFieldIterator<wire_type, cpp_type>(
-          field.data(), field.size(), parse_error_location);
-    } else {
-      return PackedRepeatedFieldIterator<wire_type, cpp_type>(
-          nullptr, 0, parse_error_location);
-    }
-  }
-
- protected:
-  TypedProtoDecoderBase(Field* storage,
-                        uint32_t num_fields,
-                        uint32_t capacity,
-                        const uint8_t* buffer,
-                        size_t length)
-      : ProtoDecoder(buffer, length),
-        fields_(storage),
-        num_fields_(num_fields),
-        size_(num_fields),
-        capacity_(capacity) {
-    // The reason why Field needs to be trivially de/constructible is to avoid
-    // implicit initializers on all the ~1000 entries. We need it to initialize
-    // only on the first |max_field_id| fields, the remaining capacity doesn't
-    // require initialization.
-    static_assert(std::is_trivially_constructible<Field>::value &&
-                      std::is_trivially_destructible<Field>::value &&
-                      std::is_trivial<Field>::value,
-                  "Field must be a trivial aggregate type");
-    memset(fields_, 0, sizeof(Field) * num_fields_);
-  }
-
-  void ParseAllFields();
-
-  // Called when the default on-stack storage is exhausted and new repeated
-  // fields need to be pushed.
-  void ExpandHeapStorage();
-
-  // Used only in presence of a large number of repeated fields, when the
-  // default on-stack storage is exhausted.
-  std::unique_ptr<Field[]> heap_storage_;
-
-  // Points to the storage, either on-stack (default, provided by the template
-  // specialization) or |heap_storage_| after ExpandHeapStorage() is called, in
-  // case of a large number of repeated fields.
-  Field* fields_;
-
-  // Number of fields without accounting repeated storage. This is equal to
-  // MAX_FIELD_ID + 1 (to account for the invalid 0th field).
-  // This value is always <= size_ (and hence <= capacity);
-  uint32_t num_fields_;
-
-  // Number of active |fields_| entries. This is initially equal to the highest
-  // number of fields for the message (num_fields_ == MAX_FIELD_ID + 1) and can
-  // grow up to |capacity_| in the case of repeated fields.
-  uint32_t size_;
-
-  // Initially equal to kFieldsCapacity of the TypedProtoDecoder
-  // specialization. Can grow when falling back on heap-based storage, in which
-  // case it represents the size (#fields with each entry of a repeated field
-  // counted individually) of the |heap_storage_| array.
-  uint32_t capacity_;
-};
-
-// Template class instantiated by the auto-generated decoder classes declared in
-// xxx.pbzero.h files.
-template <int MAX_FIELD_ID, bool HAS_NONPACKED_REPEATED_FIELDS>
-class TypedProtoDecoder : public TypedProtoDecoderBase {
- public:
-  TypedProtoDecoder(const uint8_t* buffer, size_t length)
-      : TypedProtoDecoderBase(on_stack_storage_,
-                              /*num_fields=*/MAX_FIELD_ID + 1,
-                              kCapacity,
-                              buffer,
-                              length) {
-    static_assert(MAX_FIELD_ID <= kMaxDecoderFieldId, "Field ordinal too high");
-    TypedProtoDecoderBase::ParseAllFields();
-  }
-
-  template <uint32_t FIELD_ID>
-  const Field& at() const {
-    static_assert(FIELD_ID <= MAX_FIELD_ID, "FIELD_ID > MAX_FIELD_ID");
-    return fields_[FIELD_ID];
-  }
-
-  TypedProtoDecoder(TypedProtoDecoder&& other) noexcept
-      : TypedProtoDecoderBase(std::move(other)) {
-    // If the moved-from decoder was using on-stack storage, we need to update
-    // our pointer to point to this decoder's on-stack storage.
-    if (fields_ == other.on_stack_storage_) {
-      fields_ = on_stack_storage_;
-      memcpy(on_stack_storage_, other.on_stack_storage_,
-             sizeof(on_stack_storage_));
-    }
-  }
-
- private:
-  // In the case of non-repeated fields, this constant defines the highest field
-  // id we are able to decode. This is to limit the on-stack storage.
-  // In the case of repeated fields, this constant defines the max number of
-  // repeated fields that we'll be able to store before falling back on the
-  // heap. Keep this value in sync with the one in protozero_generator.cc.
-  static constexpr size_t kMaxDecoderFieldId = 999;
-
-  // If we the message has no repeated fields we need at most N Field entries
-  // in the on-stack storage, where N is the highest field id.
-  // Otherwise we need some room to store repeated fields.
-  static constexpr size_t kCapacity =
-      1 + (HAS_NONPACKED_REPEATED_FIELDS ? kMaxDecoderFieldId : MAX_FIELD_ID);
-
-  Field on_stack_storage_[kCapacity];
-};
-
-}  // namespace protozero
-
-#endif  // INCLUDE_PERFETTO_PROTOZERO_PROTO_DECODER_H_
-// gen_amalgamated begin header: include/perfetto/protozero/proto_utils.h
-/*
- * Copyright (C) 2017 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef INCLUDE_PERFETTO_PROTOZERO_PROTO_UTILS_H_
-#define INCLUDE_PERFETTO_PROTOZERO_PROTO_UTILS_H_
-
-#include <inttypes.h>
-#include <stddef.h>
-
-#include <type_traits>
-
-// gen_amalgamated expanded: #include "perfetto/base/logging.h"
-
-namespace protozero {
-namespace proto_utils {
-
-// See https://developers.google.com/protocol-buffers/docs/encoding wire types.
-// This is a type encoded into the proto that provides just enough info to
-// find the length of the following value.
-enum class ProtoWireType : uint32_t {
-  kVarInt = 0,
-  kFixed64 = 1,
-  kLengthDelimited = 2,
-  kFixed32 = 5,
-};
-
-// This is the type defined in the proto for each field. This information
-// is used to decide the translation strategy when writing the trace.
-enum class ProtoSchemaType {
-  kUnknown = 0,
-  kDouble,
-  kFloat,
-  kInt64,
-  kUint64,
-  kInt32,
-  kFixed64,
-  kFixed32,
-  kBool,
-  kString,
-  kGroup,  // Deprecated (proto2 only)
-  kMessage,
-  kBytes,
-  kUint32,
-  kEnum,
-  kSfixed32,
-  kSfixed64,
-  kSint32,
-  kSint64,
-};
-
-inline const char* ProtoSchemaToString(ProtoSchemaType v) {
-  switch (v) {
-    case ProtoSchemaType::kUnknown:
-      return "unknown";
-    case ProtoSchemaType::kDouble:
-      return "double";
-    case ProtoSchemaType::kFloat:
-      return "float";
-    case ProtoSchemaType::kInt64:
-      return "int64";
-    case ProtoSchemaType::kUint64:
-      return "uint64";
-    case ProtoSchemaType::kInt32:
-      return "int32";
-    case ProtoSchemaType::kFixed64:
-      return "fixed64";
-    case ProtoSchemaType::kFixed32:
-      return "fixed32";
-    case ProtoSchemaType::kBool:
-      return "bool";
-    case ProtoSchemaType::kString:
-      return "string";
-    case ProtoSchemaType::kGroup:
-      return "group";
-    case ProtoSchemaType::kMessage:
-      return "message";
-    case ProtoSchemaType::kBytes:
-      return "bytes";
-    case ProtoSchemaType::kUint32:
-      return "uint32";
-    case ProtoSchemaType::kEnum:
-      return "enum";
-    case ProtoSchemaType::kSfixed32:
-      return "sfixed32";
-    case ProtoSchemaType::kSfixed64:
-      return "sfixed64";
-    case ProtoSchemaType::kSint32:
-      return "sint32";
-    case ProtoSchemaType::kSint64:
-      return "sint64";
-  }
-  // For gcc:
-  PERFETTO_DCHECK(false);
-  return "";
-}
-
-// Maximum message size supported: 256 MiB (4 x 7-bit due to varint encoding).
-constexpr size_t kMessageLengthFieldSize = 4;
-constexpr size_t kMaxMessageLength = (1u << (kMessageLengthFieldSize * 7)) - 1;
-
-// Field tag is encoded as 32-bit varint (5 bytes at most).
-// Largest value of simple (not length-delimited) field is 64-bit varint
-// (10 bytes at most). 15 bytes buffer is enough to store a simple field.
-constexpr size_t kMaxTagEncodedSize = 5;
-constexpr size_t kMaxSimpleFieldEncodedSize = kMaxTagEncodedSize + 10;
-
-// Proto types: (int|uint|sint)(32|64), bool, enum.
-constexpr uint32_t MakeTagVarInt(uint32_t field_id) {
-  return (field_id << 3) | static_cast<uint32_t>(ProtoWireType::kVarInt);
-}
-
-// Proto types: fixed64, sfixed64, fixed32, sfixed32, double, float.
-template <typename T>
-constexpr uint32_t MakeTagFixed(uint32_t field_id) {
-  static_assert(sizeof(T) == 8 || sizeof(T) == 4, "Value must be 4 or 8 bytes");
-  return (field_id << 3) |
-         static_cast<uint32_t>((sizeof(T) == 8 ? ProtoWireType::kFixed64
-                                               : ProtoWireType::kFixed32));
-}
-
-// Proto types: string, bytes, embedded messages.
-constexpr uint32_t MakeTagLengthDelimited(uint32_t field_id) {
-  return (field_id << 3) |
-         static_cast<uint32_t>(ProtoWireType::kLengthDelimited);
-}
-
-// Proto types: sint64, sint32.
-template <typename T>
-inline typename std::make_unsigned<T>::type ZigZagEncode(T value) {
-  using UnsignedType = typename std::make_unsigned<T>::type;
-
-  // Right-shift of negative values is implementation specific.
-  // Assert the implementation does what we expect, which is that shifting any
-  // positive value by sizeof(T) * 8 - 1 gives an all 0 bitmap, and a negative
-  // value gives and all 1 bitmap.
-  constexpr uint64_t kUnsignedZero = 0u;
-  constexpr int64_t kNegativeOne = -1;
-  constexpr int64_t kPositiveOne = 1;
-  static_assert(static_cast<uint64_t>(kNegativeOne >> 63) == ~kUnsignedZero,
-                "implementation does not support assumed rightshift");
-  static_assert(static_cast<uint64_t>(kPositiveOne >> 63) == kUnsignedZero,
-                "implementation does not support assumed rightshift");
-
-  return (static_cast<UnsignedType>(value) << 1) ^
-         static_cast<UnsignedType>(value >> (sizeof(T) * 8 - 1));
-}
-
-// Proto types: sint64, sint32.
-template <typename T>
-inline typename std::make_signed<T>::type ZigZagDecode(T value) {
-  using UnsignedType = typename std::make_unsigned<T>::type;
-  using SignedType = typename std::make_signed<T>::type;
-  auto u_value = static_cast<UnsignedType>(value);
-  auto mask = static_cast<UnsignedType>(-static_cast<SignedType>(u_value & 1));
-  return static_cast<SignedType>((u_value >> 1) ^ mask);
-}
-
-template <typename T>
-inline uint8_t* WriteVarInt(T value, uint8_t* target) {
-  // If value is <= 0 we must first sign extend to int64_t (see [1]).
-  // Finally we always cast to an unsigned value to to avoid arithmetic
-  // (sign expanding) shifts in the while loop.
-  // [1]: "If you use int32 or int64 as the type for a negative number, the
-  // resulting varint is always ten bytes long".
-  // - developers.google.com/protocol-buffers/docs/encoding
-  // So for each input type we do the following casts:
-  // uintX_t -> uintX_t -> uintX_t
-  // int8_t  -> int64_t -> uint64_t
-  // int16_t -> int64_t -> uint64_t
-  // int32_t -> int64_t -> uint64_t
-  // int64_t -> int64_t -> uint64_t
-  using MaybeExtendedType =
-      typename std::conditional<std::is_unsigned<T>::value, T, int64_t>::type;
-  using UnsignedType = typename std::make_unsigned<MaybeExtendedType>::type;
-
-  MaybeExtendedType extended_value = static_cast<MaybeExtendedType>(value);
-  UnsignedType unsigned_value = static_cast<UnsignedType>(extended_value);
-
-  while (unsigned_value >= 0x80) {
-    *target++ = static_cast<uint8_t>(unsigned_value) | 0x80;
-    unsigned_value >>= 7;
-  }
-  *target = static_cast<uint8_t>(unsigned_value);
-  return target + 1;
-}
-
-// Writes a fixed-size redundant encoding of the given |value|. This is
-// used to backfill fixed-size reservations for the length field using a
-// non-canonical varint encoding (e.g. \x81\x80\x80\x00 instead of \x01).
-// See https://github.com/google/protobuf/issues/1530.
-// This is used mainly in two cases:
-// 1) At trace writing time, when starting a nested messages. The size of a
-//    nested message is not known until all its field have been written.
-//    |kMessageLengthFieldSize| bytes are reserved to encode the size field and
-//    backfilled at the end.
-// 2) When rewriting a message at trace filtering time, in protozero/filtering.
-//    At that point we know only the upper bound of the length (a filtered
-//    message is <= the original one) and we backfill after the message has been
-//    filtered.
-inline void WriteRedundantVarInt(uint32_t value,
-                                 uint8_t* buf,
-                                 size_t size = kMessageLengthFieldSize) {
-  for (size_t i = 0; i < size; ++i) {
-    const uint8_t msb = (i < size - 1) ? 0x80 : 0;
-    buf[i] = static_cast<uint8_t>(value) | msb;
-    value >>= 7;
-  }
-}
-
-template <uint32_t field_id>
-void StaticAssertSingleBytePreamble() {
-  static_assert(field_id < 16,
-                "Proto field id too big to fit in a single byte preamble");
-}
-
-// Parses a VarInt from the encoded buffer [start, end). |end| is STL-style and
-// points one byte past the end of buffer.
-// The parsed int value is stored in the output arg |value|. Returns a pointer
-// to the next unconsumed byte (so start < retval <= end) or |start| if the
-// VarInt could not be fully parsed because there was not enough space in the
-// buffer.
-inline const uint8_t* ParseVarInt(const uint8_t* start,
-                                  const uint8_t* end,
-                                  uint64_t* out_value) {
-  const uint8_t* pos = start;
-  uint64_t value = 0;
-  for (uint32_t shift = 0; pos < end && shift < 64u; shift += 7) {
-    // Cache *pos into |cur_byte| to prevent that the compiler dereferences the
-    // pointer twice (here and in the if() below) due to char* aliasing rules.
-    uint8_t cur_byte = *pos++;
-    value |= static_cast<uint64_t>(cur_byte & 0x7f) << shift;
-    if ((cur_byte & 0x80) == 0) {
-      // In valid cases we get here.
-      *out_value = value;
-      return pos;
-    }
-  }
-  *out_value = 0;
-  return start;
-}
-
-enum class RepetitionType {
-  kNotRepeated,
-  kRepeatedPacked,
-  kRepeatedNotPacked,
-};
-
-// Provide a common base struct for all templated FieldMetadata types to allow
-// simple checks if a given type is a FieldMetadata or not.
-struct FieldMetadataBase {
-  constexpr FieldMetadataBase() = default;
-};
-
-template <uint32_t field_id,
-          RepetitionType repetition_type,
-          ProtoSchemaType proto_schema_type,
-          typename CppFieldType,
-          typename MessageType>
-struct FieldMetadata : public FieldMetadataBase {
-  constexpr FieldMetadata() = default;
-
-  static constexpr int kFieldId = field_id;
-  // Whether this field is repeated, packed (repeated [packed-true]) or not
-  // (optional).
-  static constexpr RepetitionType kRepetitionType = repetition_type;
-  // Proto type of this field (e.g. int64, fixed32 or nested message).
-  static constexpr ProtoSchemaType kProtoFieldType = proto_schema_type;
-  // C++ type of this field (for nested messages - C++ protozero class).
-  using cpp_field_type = CppFieldType;
-  // Protozero message which this field belongs to.
-  using message_type = MessageType;
-};
-
-namespace internal {
-
-// Ideally we would create variables of FieldMetadata<...> type directly,
-// but before C++17's support for constexpr inline variables arrive, we have to
-// actually use pointers to inline functions instead to avoid having to define
-// symbols in *.pbzero.cc files.
-//
-// Note: protozero bindings will generate Message::kFieldName variable and which
-// can then be passed to TRACE_EVENT macro for inline writing of typed messages.
-// The fact that the former can be passed to the latter is a part of the stable
-// API, while the particular type is not and users should not rely on it.
-template <typename T>
-using FieldMetadataHelper = T (*)(void);
-
-}  // namespace internal
-}  // namespace proto_utils
-}  // namespace protozero
-
-#endif  // INCLUDE_PERFETTO_PROTOZERO_PROTO_UTILS_H_
-// gen_amalgamated begin header: include/perfetto/protozero/root_message.h
-/*
- * Copyright (C) 2020 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef INCLUDE_PERFETTO_PROTOZERO_ROOT_MESSAGE_H_
-#define INCLUDE_PERFETTO_PROTOZERO_ROOT_MESSAGE_H_
-
-// gen_amalgamated expanded: #include "perfetto/protozero/message.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/message_arena.h"
-
-namespace protozero {
-
-// Helper class to hand out messages using the default MessageArena.
-// Usage:
-// RootMessage<perfetto::protos::zero::MyMessage> msg;
-// msg.Reset(stream_writer);
-// msg.set_foo(...);
-// auto* nested = msg.set_nested();
-template <typename T = Message>
-class RootMessage : public T {
- public:
-  RootMessage() { T::Reset(nullptr, &root_arena_); }
-
-  // Disallow copy and move.
-  RootMessage(const RootMessage&) = delete;
-  RootMessage& operator=(const RootMessage&) = delete;
-  RootMessage(RootMessage&&) = delete;
-  RootMessage& operator=(RootMessage&&) = delete;
-
-  void Reset(ScatteredStreamWriter* writer) {
-    root_arena_.Reset();
-    Message::Reset(writer, &root_arena_);
-  }
-
- private:
-  MessageArena root_arena_;
-};
-
-}  // namespace protozero
-
-#endif  // INCLUDE_PERFETTO_PROTOZERO_ROOT_MESSAGE_H_
-// gen_amalgamated begin header: include/perfetto/protozero/scattered_heap_buffer.h
-/*
- * Copyright (C) 2017 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef INCLUDE_PERFETTO_PROTOZERO_SCATTERED_HEAP_BUFFER_H_
-#define INCLUDE_PERFETTO_PROTOZERO_SCATTERED_HEAP_BUFFER_H_
-
-#include <memory>
-#include <string>
-#include <vector>
-
-// gen_amalgamated expanded: #include "perfetto/base/export.h"
-// gen_amalgamated expanded: #include "perfetto/base/logging.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/root_message.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/scattered_stream_writer.h"
-
-namespace protozero {
-
-class Message;
-
-class PERFETTO_EXPORT ScatteredHeapBuffer
-    : public protozero::ScatteredStreamWriter::Delegate {
- public:
-  class PERFETTO_EXPORT Slice {
-   public:
-    Slice();
-    explicit Slice(size_t size);
-    Slice(Slice&& slice) noexcept;
-    ~Slice();
-    Slice& operator=(Slice&&);
-
-    inline protozero::ContiguousMemoryRange GetTotalRange() const {
-      return {buffer_.get(), buffer_.get() + size_};
-    }
-
-    inline protozero::ContiguousMemoryRange GetUsedRange() const {
-      return {buffer_.get(), buffer_.get() + size_ - unused_bytes_};
-    }
-
-    uint8_t* start() const { return buffer_.get(); }
-    size_t size() const { return size_; }
-    size_t unused_bytes() const { return unused_bytes_; }
-    void set_unused_bytes(size_t unused_bytes) {
-      PERFETTO_DCHECK(unused_bytes_ <= size_);
-      unused_bytes_ = unused_bytes;
-    }
-
-    void Clear();
-
-   private:
-    std::unique_ptr<uint8_t[]> buffer_;
-    size_t size_;
-    size_t unused_bytes_;
-  };
-
-  ScatteredHeapBuffer(size_t initial_slice_size_bytes = 128,
-                      size_t maximum_slice_size_bytes = 128 * 1024);
-  ~ScatteredHeapBuffer() override;
-
-  // protozero::ScatteredStreamWriter::Delegate implementation.
-  protozero::ContiguousMemoryRange GetNewBuffer() override;
-
-  // Return the slices backing this buffer, adjusted for the number of bytes the
-  // writer has written.
-  const std::vector<Slice>& GetSlices();
-
-  // Stitch all the slices into a single contiguous buffer.
-  std::vector<uint8_t> StitchSlices();
-
-  // Note that the returned ranges point back to this buffer and thus cannot
-  // outlive it.
-  std::vector<protozero::ContiguousMemoryRange> GetRanges();
-
-  // Note that size of the last slice isn't updated to reflect the number of
-  // bytes written by the trace writer.
-  const std::vector<Slice>& slices() const { return slices_; }
-
-  void set_writer(protozero::ScatteredStreamWriter* writer) {
-    writer_ = writer;
-  }
-
-  // Update unused_bytes() of the current |Slice| based on the writer's state.
-  void AdjustUsedSizeOfCurrentSlice();
-
-  // Returns the total size the slices occupy in heap memory (including unused).
-  size_t GetTotalSize();
-
-  // Reset the contents of this buffer but retain one slice allocation (if it
-  // exists) to be reused for future writes.
-  void Reset();
-
- private:
-  size_t next_slice_size_;
-  const size_t maximum_slice_size_;
-  protozero::ScatteredStreamWriter* writer_ = nullptr;
-  std::vector<Slice> slices_;
-
-  // Used to keep an allocated slice around after this buffer is reset.
-  Slice cached_slice_;
-};
-
-// Helper function to create heap-based protozero messages in one line.
-// Useful when manually serializing a protozero message (primarily in
-// tests/utilities). So instead of the following:
-//   protozero::MyMessage msg;
-//   protozero::ScatteredHeapBuffer shb;
-//   protozero::ScatteredStreamWriter writer(&shb);
-//   shb.set_writer(&writer);
-//   msg.Reset(&writer);
-//   ...
-// You can write:
-//   protozero::HeapBuffered<protozero::MyMessage> msg;
-//   msg->set_stuff(...);
-//   msg.SerializeAsString();
-template <typename T = ::protozero::Message>
-class HeapBuffered {
- public:
-  HeapBuffered() : HeapBuffered(4096, 4096) {}
-  HeapBuffered(size_t initial_slice_size_bytes, size_t maximum_slice_size_bytes)
-      : shb_(initial_slice_size_bytes, maximum_slice_size_bytes),
-        writer_(&shb_) {
-    shb_.set_writer(&writer_);
-    msg_.Reset(&writer_);
-  }
-
-  // This can't be neither copied nor moved because Message hands out pointers
-  // to itself when creating submessages.
-  HeapBuffered(const HeapBuffered&) = delete;
-  HeapBuffered& operator=(const HeapBuffered&) = delete;
-  HeapBuffered(HeapBuffered&&) = delete;
-  HeapBuffered& operator=(HeapBuffered&&) = delete;
-
-  T* get() { return &msg_; }
-  T* operator->() { return &msg_; }
-
-  bool empty() const { return shb_.slices().empty(); }
-
-  std::vector<uint8_t> SerializeAsArray() {
-    msg_.Finalize();
-    return shb_.StitchSlices();
-  }
-
-  std::string SerializeAsString() {
-    auto vec = SerializeAsArray();
-    return std::string(reinterpret_cast<const char*>(vec.data()), vec.size());
-  }
-
-  std::vector<protozero::ContiguousMemoryRange> GetRanges() {
-    msg_.Finalize();
-    return shb_.GetRanges();
-  }
-
-  const std::vector<ScatteredHeapBuffer::Slice>& GetSlices() {
-    msg_.Finalize();
-    return shb_.GetSlices();
-  }
-
-  void Reset() {
-    shb_.Reset();
-    writer_.Reset(protozero::ContiguousMemoryRange{});
-    msg_.Reset(&writer_);
-    PERFETTO_DCHECK(empty());
-  }
-
- private:
-  ScatteredHeapBuffer shb_;
-  ScatteredStreamWriter writer_;
-  RootMessage<T> msg_;
-};
-
-}  // namespace protozero
-
-#endif  // INCLUDE_PERFETTO_PROTOZERO_SCATTERED_HEAP_BUFFER_H_
-// gen_amalgamated begin header: include/perfetto/protozero/scattered_stream_null_delegate.h
-/*
- * Copyright (C) 2018 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef INCLUDE_PERFETTO_PROTOZERO_SCATTERED_STREAM_NULL_DELEGATE_H_
-#define INCLUDE_PERFETTO_PROTOZERO_SCATTERED_STREAM_NULL_DELEGATE_H_
-
-#include <memory>
-#include <vector>
-
-// gen_amalgamated expanded: #include "perfetto/base/export.h"
-// gen_amalgamated expanded: #include "perfetto/base/logging.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/contiguous_memory_range.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/scattered_stream_writer.h"
-
-namespace protozero {
-
-class PERFETTO_EXPORT ScatteredStreamWriterNullDelegate
-    : public ScatteredStreamWriter::Delegate {
- public:
-  explicit ScatteredStreamWriterNullDelegate(size_t chunk_size);
-  ~ScatteredStreamWriterNullDelegate() override;
-
-  // protozero::ScatteredStreamWriter::Delegate implementation.
-  ContiguousMemoryRange GetNewBuffer() override;
-
- private:
-  const size_t chunk_size_;
-  std::unique_ptr<uint8_t[]> chunk_;
-};
-
-}  // namespace protozero
-
-#endif  // INCLUDE_PERFETTO_PROTOZERO_SCATTERED_STREAM_NULL_DELEGATE_H_
-// gen_amalgamated begin header: include/perfetto/protozero/scattered_stream_writer.h
-/*
- * Copyright (C) 2017 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef INCLUDE_PERFETTO_PROTOZERO_SCATTERED_STREAM_WRITER_H_
-#define INCLUDE_PERFETTO_PROTOZERO_SCATTERED_STREAM_WRITER_H_
-
-#include <assert.h>
-#include <stddef.h>
-#include <stdint.h>
-#include <string.h>
-
-// gen_amalgamated expanded: #include "perfetto/base/compiler.h"
-// gen_amalgamated expanded: #include "perfetto/base/export.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/contiguous_memory_range.h"
-
-namespace protozero {
-
-// This class deals with the following problem: append-only proto messages want
-// to write a stream of bytes, without caring about the implementation of the
-// underlying buffer (which concretely will be either the trace ring buffer
-// or a heap-allocated buffer). The main deal is: proto messages don't know in
-// advance what their size will be.
-// Due to the tracing buffer being split into fixed-size chunks, on some
-// occasions, these writes need to be spread over two (or more) non-contiguous
-// chunks of memory. Similarly, when the buffer is backed by the heap, we want
-// to avoid realloc() calls, as they might cause a full copy of the contents
-// of the buffer.
-// The purpose of this class is to abstract away the non-contiguous write logic.
-// This class knows how to deal with writes as long as they fall in the same
-// ContiguousMemoryRange and defers the chunk-chaining logic to the Delegate.
-class PERFETTO_EXPORT ScatteredStreamWriter {
- public:
-  class PERFETTO_EXPORT Delegate {
-   public:
-    virtual ~Delegate();
-    virtual ContiguousMemoryRange GetNewBuffer() = 0;
-  };
-
-  explicit ScatteredStreamWriter(Delegate* delegate);
-  ~ScatteredStreamWriter();
-
-  inline void WriteByte(uint8_t value) {
-    if (write_ptr_ >= cur_range_.end)
-      Extend();
-    *write_ptr_++ = value;
-  }
-
-  // Assumes that the caller checked that there is enough headroom.
-  // TODO(primiano): perf optimization, this is a tracing hot path. The
-  // compiler can make strong optimization on memcpy if the size arg is a
-  // constexpr. Make a templated variant of this for fixed-size writes.
-  // TODO(primiano): restrict / noalias might also help.
-  inline void WriteBytesUnsafe(const uint8_t* src, size_t size) {
-    uint8_t* const end = write_ptr_ + size;
-    assert(end <= cur_range_.end);
-    memcpy(write_ptr_, src, size);
-    write_ptr_ = end;
-  }
-
-  inline void WriteBytes(const uint8_t* src, size_t size) {
-    uint8_t* const end = write_ptr_ + size;
-    if (PERFETTO_LIKELY(end <= cur_range_.end))
-      return WriteBytesUnsafe(src, size);
-    WriteBytesSlowPath(src, size);
-  }
-
-  void WriteBytesSlowPath(const uint8_t* src, size_t size);
-
-  // Reserves a fixed amount of bytes to be backfilled later. The reserved range
-  // is guaranteed to be contiguous and not span across chunks. |size| has to be
-  // <= than the size of a new buffer returned by the Delegate::GetNewBuffer().
-  uint8_t* ReserveBytes(size_t size);
-
-  // Fast (but unsafe) version of the above. The caller must have previously
-  // checked that there are at least |size| contiguous bytes available.
-  // Returns only the start pointer of the reservation.
-  uint8_t* ReserveBytesUnsafe(size_t size) {
-    uint8_t* begin = write_ptr_;
-    write_ptr_ += size;
-    assert(write_ptr_ <= cur_range_.end);
-    return begin;
-  }
-
-  // Resets the buffer boundaries and the write pointer to the given |range|.
-  // Subsequent WriteByte(s) will write into |range|.
-  void Reset(ContiguousMemoryRange range);
-
-  // Number of contiguous free bytes in |cur_range_| that can be written without
-  // requesting a new buffer.
-  size_t bytes_available() const {
-    return static_cast<size_t>(cur_range_.end - write_ptr_);
-  }
-
-  uint8_t* write_ptr() const { return write_ptr_; }
-
-  uint64_t written() const {
-    return written_previously_ +
-           static_cast<uint64_t>(write_ptr_ - cur_range_.begin);
-  }
-
- private:
-  ScatteredStreamWriter(const ScatteredStreamWriter&) = delete;
-  ScatteredStreamWriter& operator=(const ScatteredStreamWriter&) = delete;
-
-  void Extend();
-
-  Delegate* const delegate_;
-  ContiguousMemoryRange cur_range_;
-  uint8_t* write_ptr_;
-  uint64_t written_previously_ = 0;
-};
-
-}  // namespace protozero
-
-#endif  // INCLUDE_PERFETTO_PROTOZERO_SCATTERED_STREAM_WRITER_H_
-// gen_amalgamated begin header: include/perfetto/protozero/static_buffer.h
-/*
- * Copyright (C) 2019 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef INCLUDE_PERFETTO_PROTOZERO_STATIC_BUFFER_H_
-#define INCLUDE_PERFETTO_PROTOZERO_STATIC_BUFFER_H_
-
-#include <memory>
-#include <string>
-#include <vector>
-
-// gen_amalgamated expanded: #include "perfetto/base/export.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/root_message.h"
-// gen_amalgamated expanded: #include "perfetto/protozero/scattered_stream_writer.h"
-
-namespace protozero {
-
-class Message;
-
-// A simple implementation of ScatteredStreamWriter::Delegate backed by a
-// fixed-size buffer. It doesn't support expansion. The caller needs to ensure
-// to never write more than the size of the buffer. Will CHECK() otherwise.
-class PERFETTO_EXPORT StaticBufferDelegate
-    : public ScatteredStreamWriter::Delegate {
- public:
-  StaticBufferDelegate(uint8_t* buf, size_t len) : range_{buf, buf + len} {}
-  ~StaticBufferDelegate() override;
-
-  // ScatteredStreamWriter::Delegate implementation.
-  ContiguousMemoryRange GetNewBuffer() override;
-
-  ContiguousMemoryRange const range_;
-  bool get_new_buffer_called_once_ = false;
-};
-
-// Helper function to create protozero messages backed by a fixed-size buffer
-// in one line. You can write:
-//   protozero::Static<protozero::MyMessage> msg(buf.data(), buf.size());
-//   msg->set_stuff(...);
-//   size_t bytes_encoded = msg.Finalize();
-template <typename T /* protozero::Message */>
-class StaticBuffered {
- public:
-  StaticBuffered(void* buf, size_t len)
-      : delegate_(reinterpret_cast<uint8_t*>(buf), len), writer_(&delegate_) {
-    msg_.Reset(&writer_);
-  }
-
-  // This can't be neither copied nor moved because Message hands out pointers
-  // to itself when creating submessages.
-  StaticBuffered(const StaticBuffered&) = delete;
-  StaticBuffered& operator=(const StaticBuffered&) = delete;
-  StaticBuffered(StaticBuffered&&) = delete;
-  StaticBuffered& operator=(StaticBuffered&&) = delete;
-
-  T* get() { return &msg_; }
-  T* operator->() { return &msg_; }
-
-  // The lack of a size() method is deliberate. It's to prevent that one
-  // accidentally calls size() before Finalize().
-
-  // Returns the number of encoded bytes (<= the size passed in the ctor).
-  size_t Finalize() {
-    msg_.Finalize();
-    return static_cast<size_t>(writer_.write_ptr() - delegate_.range_.begin);
-  }
-
- private:
-  StaticBufferDelegate delegate_;
-  ScatteredStreamWriter writer_;
-  RootMessage<T> msg_;
-};
-
-// Helper function to create stack-based protozero messages in one line.
-// You can write:
-//   protozero::StackBuffered<protozero::MyMessage, 16> msg;
-//   msg->set_stuff(...);
-//   size_t bytes_encoded = msg.Finalize();
-template <typename T /* protozero::Message */, size_t N>
-class StackBuffered : public StaticBuffered<T> {
- public:
-  StackBuffered() : StaticBuffered<T>(&buf_[0], N) {}
-
- private:
-  uint8_t buf_[N];  // Deliberately not initialized.
-};
-
-}  // namespace protozero
-
-#endif  // INCLUDE_PERFETTO_PROTOZERO_STATIC_BUFFER_H_
-
diff --git a/guest/profiler/profiler.cpp b/guest/profiler/profiler.cpp
deleted file mode 100644
index 97e5feed..00000000
--- a/guest/profiler/profiler.cpp
+++ /dev/null
@@ -1,93 +0,0 @@
-// Copyright (C) 2021 The Android Open Source Project
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-// http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
-
-#include "profiler.h"
-
-#include <android-base/properties.h>
-#include <sys/prctl.h>
-
-#include "perfetto.h"
-
-namespace {
-
-class GpuCounterDataSource : public perfetto::DataSource<GpuCounterDataSource> {
- public:
-  void OnSetup(const SetupArgs& args) override {
-    PERFETTO_ILOG("GpuCounterDataSource OnSetup, name: %s", args.config->name().c_str());
-    const std::string& config_raw = args.config->gpu_counter_config_raw();
-    perfetto::protos::pbzero::GpuCounterConfig::Decoder config(config_raw);
-    for(auto it = config.counter_ids(); it; ++it) {
-      counter_ids.push_back(it->as_uint32());
-    }
-    first = true;
-  }
-
-  void OnStart(const StartArgs&) override {
-    PERFETTO_ILOG("GpuCounterDataSource OnStart called");
-  }
-
-  void OnStop(const StopArgs&) override {
-    PERFETTO_ILOG("GpuCounterDataSource OnStop called");
-  }
-
-  bool first = true;
-  uint64_t count = 0;
-  std::vector<uint32_t> counter_ids;
-};
-
-class GpuRenderStageDataSource: public perfetto::DataSource<GpuRenderStageDataSource> {
- public:
-  void OnSetup(const SetupArgs& args) override {
-    PERFETTO_ILOG("GpuRenderStageDataSource OnSetup called, name: %s",
-      args.config->name().c_str());
-    first = true;
-  }
-
-  void OnStart(const StartArgs&) override {
-    PERFETTO_ILOG("GpuRenderStageDataSource OnStart called");
-  }
-
-  void OnStop(const StopArgs&) override {
-    PERFETTO_ILOG("GpuRenderStageDataSource OnStop called");
-  }
-
-  bool first = true;
-  uint64_t count = 0;
-};
-
-}
-
-void try_register_goldfish_perfetto() {
-  std::string enableString = android::base::GetProperty("debug.graphics.gpu.profiler.perfetto", "");
-  if (enableString != "1" && enableString != "true") {
-    return;
-  }
-  if (!prctl(PR_GET_DUMPABLE, 0, 0, 0, 0)) {
-    return;
-  }
-  perfetto::TracingInitArgs args;
-  args.backends = perfetto::kSystemBackend;
-  perfetto::Tracing::Initialize(args);
-  {
-    perfetto::DataSourceDescriptor dsd;
-    dsd.set_name("gpu.counters");
-    GpuCounterDataSource::Register(dsd);
-  }
-
-  {
-    perfetto::DataSourceDescriptor dsd;
-    dsd.set_name("gpu.renderstages");
-    GpuRenderStageDataSource::Register(dsd);
-  }
-}
diff --git a/guest/profiler/profiler.h b/guest/profiler/profiler.h
deleted file mode 100644
index 3b4db471..00000000
--- a/guest/profiler/profiler.h
+++ /dev/null
@@ -1,20 +0,0 @@
-// Copyright (C) 2021 The Android Open Source Project
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-// http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
-
-#ifndef __PROFILER_H__
-#define __PROFILER_H__
-
-extern void try_register_goldfish_perfetto();
-
-#endif //__PROFILER_H__
diff --git a/guest/profiler/profiler_stub.cpp b/guest/profiler/profiler_stub.cpp
deleted file mode 100644
index 52fd9349..00000000
--- a/guest/profiler/profiler_stub.cpp
+++ /dev/null
@@ -1,19 +0,0 @@
-/*
- * Copyright 2021 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#include "profiler.h"
-
-void try_register_goldfish_perfetto() { }