1 files changed, 67 insertions, 0 deletions
diff --git a/base/android/early_trace_event_binding.cc b/base/android/early_trace_event_binding.cc
new file mode 100644
index 0000000000..bf6b910675
--- /dev/null
+++ b/base/android/early_trace_event_binding.cc
@@ -0,0 +1,67 @@
+// Copyright 2016 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#include <stdint.h>
+
+#include "base/android/jni_string.h"
+#include "base/time/time.h"
+#include "base/trace_event/trace_event.h"
+#include "jni/EarlyTraceEvent_jni.h"
+
+namespace base {
+namespace android {
+
+const char kEarlyJavaCategory[] = "EarlyJava";
+
+static void JNI_EarlyTraceEvent_RecordEarlyEvent(
+    JNIEnv* env,
+    const JavaParamRef<jclass>& clazz,
+    const JavaParamRef<jstring>& jname,
+    jlong begin_time_ns,
+    jlong end_time_ns,
+    jint thread_id,
+    jlong thread_duration_ms) {
+  std::string name = ConvertJavaStringToUTF8(env, jname);
+  int64_t begin_us = begin_time_ns / 1000;
+  int64_t end_us = end_time_ns / 1000;
+  int64_t thread_duration_us = thread_duration_ms * 1000;
+
+  INTERNAL_TRACE_EVENT_ADD_WITH_ID_TID_AND_TIMESTAMPS(
+      kEarlyJavaCategory, name.c_str(), trace_event_internal::kNoId, thread_id,
+      TimeTicks::FromInternalValue(begin_us),
+      TimeTicks::FromInternalValue(end_us),
+      ThreadTicks::Now() + TimeDelta::FromMicroseconds(thread_duration_us),
+      TRACE_EVENT_FLAG_COPY);
+}
+
+static void JNI_EarlyTraceEvent_RecordEarlyStartAsyncEvent(
+    JNIEnv* env,
+    const JavaParamRef<jclass>& clazz,
+    const JavaParamRef<jstring>& jname,
+    jlong id,
+    jlong timestamp_ns) {
+  std::string name = ConvertJavaStringToUTF8(env, jname);
+  int64_t timestamp_us = timestamp_ns / 1000;
+
+  TRACE_EVENT_COPY_ASYNC_BEGIN_WITH_TIMESTAMP0(
+      kEarlyJavaCategory, name.c_str(), id,
+      base::TimeTicks() + base::TimeDelta::FromMicroseconds(timestamp_us));
+}
+
+static void JNI_EarlyTraceEvent_RecordEarlyFinishAsyncEvent(
+    JNIEnv* env,
+    const JavaParamRef<jclass>& clazz,
+    const JavaParamRef<jstring>& jname,
+    jlong id,
+    jlong timestamp_ns) {
+  std::string name = ConvertJavaStringToUTF8(env, jname);
+  int64_t timestamp_us = timestamp_ns / 1000;
+
+  TRACE_EVENT_COPY_ASYNC_END_WITH_TIMESTAMP0(
+      kEarlyJavaCategory, name.c_str(), id,
+      base::TimeTicks() + base::TimeDelta::FromMicroseconds(timestamp_us));
+}
+
+}  // namespace android
+}  // namespace base